JP2002204547A - Motor holder and method of manufacturing the same - Google Patents

Abstract

(57) [Object] To provide a motor holder capable of reducing manufacturing cost. A motor holder includes a holder main body formed in a substantially bottomed cylindrical shape to hold a blower motor on an inner peripheral side, and extends radially outward from the holder main body. And an air passage section 8 that communicates between the outside in the radial direction and the inner peripheral side of the holder main body section 5. The holder main body part 5 and the air passage part 8 are bent between the first and second lid parts 15 and 1.
6 is formed integrally with the resin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor holder for supporting a motor and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, vehicles and the like are provided with a blower motor device. As shown in FIG. 8, the blower motor device includes a motor holder 81 fixed to a vehicle (not shown),
The blower motor 82 includes a blower motor 82 held by a motor holder 81 and a fan 84 fixed to a rotation shaft 83 of the blower motor 82.

[0003] The motor holder 81 is made of a resin material, and has a holder main body 85 formed in a substantially cylindrical shape with a bottom so as to hold the blower motor 82 on the inner peripheral side, and radially outward from an opening of the holder main body 85. A substantially disk-shaped connecting portion 86 extending, a fixing ring portion 87 formed at the tip of the connecting portion 86, and provided at a predetermined angular position of the connecting portion 86. And an air passage section 88 communicating with the inner peripheral side of the air passage.

[0004] A part of the air passage section 88 is provided in the holder main body section 8.
5. The connecting portion 86 and the fixing ring portion 87 are formed separately. More specifically, the air passage section 88 includes an air passage section concave portion 89, a mounting cover 90, a mounting screw 91, and the like. The air passage portion forming concave portion 89 is formed in the connecting portion 86 at a predetermined angular position of the holder main body portion 85 so as to extend in the radial direction and open downward. A suction port 89a that opens upward is formed at a radially outer end of the air passage portion forming concave portion 89. And the inlet 89a
Is formed in a part (the center in the circumferential direction) of the mounting portion 89b extending toward the opening of the air passage portion forming concave portion 89.
9b is formed with a screw hole 89c. A communication hole 92 is formed at the bottom of the holder body 85 at the predetermined angle position.

[0005] The mounting cover 90 is formed in a substantially crank shape, and extends substantially so as to substantially cover the air passage path forming concave portion 89. A second cover 90b extending to the bottom side along the bottom surface, and the communication hole 9 extending from the tip of the second cover 90b.
2 and a third cover portion 90c extending so as to cover the second cover 2. The mounting cover 90 has a through hole 90 formed at a position corresponding to the screw hole 89c of the first cover portion 90a.
d, and the mounting screw 91 is screwed into the screw hole 89c.
, And is fixed to the mounting portion 89b (the holder body 85, the connecting portion 86, and the fixing ring portion 87).

[0006] The blower motor 82 is a DC motor, and its yoke 93 is held on the inner peripheral side of the holder body 85. More specifically, the blower motor 82
3 is screwed to the bottom of the holder main body 85, and the outer circumference of the yoke 93 is supported on the inner circumference of the holder main body 85 via a plurality of rubber materials (not shown) or a convex shape (not shown). And is supported by being press-fitted through the ribs. A ventilation hole 94 is formed at a position corresponding to the communication hole 92 (third cover 90c) on the bottom of the yoke 93.

In the blower motor device configured as described above, when a drive voltage is supplied to the blower motor 82, the fan 84 rotates together with the rotating shaft 83. For example, air above the fan 84 is sucked and exhausted to the side. Then, the blowing operation is performed. At this time, the air outside the holder body 85 in the radial direction is introduced into the inner peripheral side of the holder body 85 via the ventilation path 88 and into the yoke 93 via the ventilation hole 94. Therefore, the blower motor 82
Heat generation inside (particularly the power supply brush 95) is suppressed.

[0008]

In the motor holder 81, an integrally formed product including the holder main body 85, the connecting portion 86 and the fixing ring portion 87, and the mounting cover 90 are respectively separate molds. Manufactured using the mounting screws 91
Is fixed at. Therefore, there is a problem that a large number of dies are required, assembling is troublesome, and the manufacturing cost is increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a motor holder capable of reducing the manufacturing cost and a method for manufacturing the same.

[0010]

According to a first aspect of the present invention, there is provided a holder main body formed in a substantially cylindrical shape to hold a motor on an inner peripheral side, and extending radially outward from the holder main body, In a motor holder provided with a ventilation path communicating radially outside of the holder main body with an inner peripheral side of the holder main body, the holder main body and the ventilation path are integrally formed of resin.

According to a second aspect of the present invention, in the motor holder according to the first aspect, the holder main body and at least a part of the air passage are formed with a cover that can be bent, so that the holder main body is formed. The part and the air passage part were integrally formed.

According to a third aspect of the present invention, in the motor holder according to the second aspect, a radially outer opening of the blower passage is opened in a direction parallel to an axial center of the holder main body. The lid is provided at a radially outer end of the air passage, and covers the radially outer end.

The invention described in claim 4 is the invention according to claim 2 or 3.
In the motor holder described in the above, the holder main body side of the blower passage portion has an axial passage portion extending to one end side of the holder main body portion along the outer periphery of the holder main body portion, the lid portion, It is provided at the front end of the axial passage and closes the front end.

According to a fifth aspect of the present invention, in the motor holder according to the second aspect, the lid is provided at an axial end of the air passage that extends in a radial direction, and the axial end is provided with the lid. Close up.

[0015] The invention according to claim 6 is the invention according to claims 2 to 5.
In the motor holder according to any one of the above, the lid is held in a state of being bent by fitting. According to a seventh aspect of the present invention, in the motor holder according to the sixth aspect, the fitting portion of the lid is reinforced by heat caulking or ultrasonic caulking.

[0018] The invention described in claim 8 is the invention according to claims 2 to 7.
In the motor holder according to any one of the above, the lid that covers one surface is divided into a plurality of parts. According to a ninth aspect of the present invention, in the motor holder according to the eighth aspect, the lid is a double door type.

According to a tenth aspect of the present invention, in the motor holder according to any one of the second to ninth aspects, the ventilation path has two openings at different positions in the axial direction. Thus, the axial end of the blower passage extending in the radial direction was inclined with respect to the radial direction in accordance with the two openings.

According to the eleventh aspect of the present invention, there is provided a holder main body formed in a substantially cylindrical shape to hold a motor on an inner peripheral side,
A method for manufacturing a motor holder, comprising: a fan passage extending radially outward from the holder main body; and a blower passage communicating with a radially outer side of the holder main body and an inner peripheral side of the holder main body.
The holder main body and the air passage are integrally formed of resin using an upper die, a lower die, and a slide core.

According to a twelfth aspect of the present invention, in the method for manufacturing a motor holder according to the eleventh aspect, a lid portion that can be bent by the upper mold, the lower mold, and the slide core is formed, and the holder main body is formed. And at least a part of the ventilation path is formed by bending the lid.

According to a thirteenth aspect of the present invention, in the method for manufacturing a motor holder according to the twelfth aspect, the radially outer opening of the air passage is opened in a direction parallel to the axial center of the holder main body. The lid is provided at a radially outer end of the air passage, and covers the radially outer end.

According to a fourteenth aspect of the present invention, in the method for manufacturing a motor holder according to the twelfth or thirteenth aspect, the holder main body side of the air passage is formed along the outer periphery of the holder main body. An axial passage extending to one end of the main body is provided, and the lid is provided at a distal end of the axial passage and closes the distal end.

According to a fifteenth aspect of the present invention, in the method for manufacturing a motor holder according to the thirteenth aspect, the upper die and the lower die are provided so as to be relatively movable in the axial direction of the holder main body to be molded. The slide core is provided so as to be movable in a direction intersecting the movement direction of the upper mold and the lower mold,
This is for forming the inner surface of the air passage section to be formed.

According to a sixteenth aspect of the present invention, in the method for manufacturing a motor holder according to the fourteenth aspect, the upper die and the lower die are provided so as to be relatively movable in the axial direction of the holder main body to be molded. The slide core is provided so as to be movable in a direction intersecting the movement direction of the upper mold and the lower mold,
This is for forming a bending groove for bending the lid that closes the tip of the axial passage to be formed.

According to a seventeenth aspect of the present invention, there is provided a holder main body having a substantially cylindrical shape for holding a motor on an inner peripheral side,
A method for manufacturing a motor holder, comprising: a fan passage extending radially outward from the holder main body; and a blower passage communicating with a radially outer side of the holder main body and an inner peripheral side of the holder main body.
The holder main body and the air passage are integrally formed of resin using an upper mold and a lower mold.

According to an eighteenth aspect of the present invention, in the method for manufacturing a motor holder according to the seventeenth aspect, a lid that can be bent by an upper die and a lower die is formed, and the holder main body and the air passage are provided. At least a part of the portion is formed by bending the lid.

According to a nineteenth aspect of the present invention, in the method for manufacturing a motor holder according to the eighteenth aspect, the lid is provided with:
It is provided at an axial end of the ventilation path extending in the radial direction, and closes the axial end.

(Operation) According to the first aspect of the present invention,
Since the motor holder including the holder body and the air passage is integrally formed of resin, the number of parts is reduced as compared with the case where the holder body and the air passage are formed of separate members.

According to the second aspect of the present invention, the holder main body and the air passage are easily formed integrally by forming a bendable lid on at least a part of the holder main body and the air passage. can do.

According to the third aspect of the invention, the radially outer opening of the air passage is open in a direction parallel to the axial center of the holder main body, and the lid is radially outward of the air passage. An end portion is provided to close the radially outer end portion. So, for example,
Using the upper die, lower die, and slide core, the inner surface of the air passage that penetrates radially outward is formed, and the lid can close the radial outer end of the air passage, so that the motor holder can be easily mounted. It can be integrally molded.

According to the fourth aspect of the invention, the holder main body side of the air passage has an axial passage extending to one end side of the holder main body along the outer periphery of the holder main body. The lid is provided at a distal end of the axial passage, and covers the distal end. Therefore, for example, it is possible to form a bending groove for allowing the lid to be bent using the upper die, the lower die, and the slide core, and to close the front end portion of the axial direction passage portion with the lid, which can be easily performed. And the motor holder can be integrally formed.

According to the fifth aspect of the present invention, the lid is provided at an axial end of the air passage extending in the radial direction, and closes the axial end. So, for example,
And using the lower die (without using a slide core) to form three walls except for the walls at the axial ends of the air passages extending in the radial direction, and to be bent to form the walls at the axial ends. Can be formed,
The motor holder including the air passage can be integrally formed.

According to the sixth aspect of the present invention, since the lid is held in a bent state by fitting, it can be manufactured easily, and other members such as an adhesive are not required.

According to the seventh aspect of the present invention, the fitting portion of the lid portion is reinforced by heat caulking or ultrasonic caulking, so that the lid portion can be reliably held in a folded state. it can.

According to the eighth aspect of the present invention, the lid for covering one surface is formed by being divided into a plurality of parts.
The amount of protrusion of the lid in the open state (before being closed)
It can be made smaller than those that are not divided.

According to the ninth aspect of the present invention, since the lid is a double-opening type, the amount of protrusion of the lid in an open state (a state before being closed) is substantially halved. According to the invention as set forth in claim 10, the ventilation path has both openings at different positions in the axial direction, and the axial end of the ventilation path extending in the radial direction has the two ends. Since the air is inclined with respect to the radial direction according to the opening, the air flows smoothly.
In addition, if the lid is closed at the inclined axial end (in combination with the configuration of claim 5), the motor holder in which both openings of the blower passage are at different positions in the axial direction,
It is easy to integrally mold (without using a slide core or the like) only by forming one lid portion.

According to the eleventh aspect, the upper die,
Since the holder main body and the air passage are integrally formed of resin using a lower mold and a slide core, parts of the motor holder are compared with a case where the holder main body and the air passage are formed by separate members. Points are reduced.

According to the twelfth aspect of the present invention, the upper mold,
Since the lower mold and the slide core are formed with a cover that can be bent and at least a part of the holder body and the air passage are formed by bending the cover, the holder body and the air passage are easily formed. Can be integrally molded.

According to the thirteenth aspect of the present invention, the radially outer opening of the air passage is opened in a direction parallel to the axis center of the holder body, and the lid is radially outer of the air passage. An end portion is provided to close the radially outer end portion. Therefore, the upper mold,
The lower die and the slide core are used to form the inner surface of the air passage that penetrates radially outward, and the lid can close the radial outer end of the air passage, so that the motor holder can be easily integrally formed. be able to.

According to the fourteenth aspect of the present invention, the holder main body side of the air passage has an axial passage extending to one end side of the holder main body along the outer periphery of the holder main body. The lid is provided at a distal end of the axial passage, and covers the distal end. Therefore, by using the upper die, the lower die, and the slide core, a bent groove for bending the lid can be formed, and the front end of the axial passage can be closed by the lid, so that the motor can be easily driven. The holder can be integrally formed.

According to the fifteenth aspect, the slide core is provided so as to be movable in a direction intersecting the moving direction of the upper die and the lower die, and the inner surface of the air passage is formed by the slide core. You.

According to the sixteenth aspect of the present invention, the slide core is provided so as to be movable in a direction intersecting with the moving direction of the upper die and the lower die. A bending groove is formed to enable the lid to be closed to be bent.

According to the seventeenth aspect, the upper mold,
And using a lower mold (without using a slide core) to integrally mold the holder body and the air passage with resin, compared to a case where the holder body and the air passage are formed by separate members. Therefore, the number of parts of the motor holder is reduced.
Further, the manufacturing apparatus can be simplified.

According to the invention described in claim 18, the upper mold,
And a lid part that can be bent with the lower mold, and at least a part of the holder body and the air passage are formed by bending the lid, so that the holder body and the air passage are easily integrally formed. can do.

According to the nineteenth aspect of the present invention, the lid is provided at an axial end of the air passage extending in the radial direction, and closes the axial end. Therefore, three walls can be formed using the upper mold and the lower mold (without using the slide core) except for the walls at the axial end of the air passage that extends in the radial direction, and can be bent to form the axis. A lid that forms the wall at the end in the direction can be formed, and the motor holder including the air passage can be integrally formed.

[0045]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment in which the present invention is embodied in a blower motor device for a vehicle will be described below with reference to FIGS.

The blower motor device, as shown in FIG.
The vehicle includes a motor holder 1 fixed to a vehicle (not shown), a blower motor 2 held by the motor holder 1, and a fan 4 fixed to a rotating shaft 3 of the blower motor 2.

The motor holder 1 is made of resin and has a holder body 5 formed in a substantially cylindrical shape with a bottom to hold the blower motor 2 on the inner peripheral side, and a radially outer side from the opening side of the holder body 5. A substantially disk-shaped connecting portion 6 extending, a fixing ring portion 7 formed at a tip of the connecting portion 6, and a predetermined angular position of the connecting portion 6, and a radial outside of the holder body portion 5 and the same holder body portion And an air passage section 8 that communicates with the inner peripheral side of the air passage 5.

The air passage 8 is formed integrally with the holder body 5 (the connecting portion 6 and the fixing ring 7). Specifically, a communication hole 9 is formed at the predetermined angular position on the outer peripheral side of the bottom of the holder body 5. And the air duct 8
A first passage 11 formed in a hollow substantially crank shape and extending radially outward of the holder main body 5 (perpendicular to the axial direction of the holder main body 5) while forming a part of the connecting portion 6;
A second passage 12 as an axial passage extending from the base end side of the passage 11 to the bottom of the holder body 5 along a part of the outer periphery of the holder body 5 while forming a part of the outer periphery of the holder body 5; And a third passage 13 extending from the front end of the holder body 5 to a position covering the communication hole 9 toward the axial center of the holder body 5.
At the tip of the first passage 11, a suction port 14 is formed as an opening that opens in the same direction (axial direction) as the opening of the holder body 5. That is, the blowing path unit 8 includes
The third passages 11 to 13 communicate the radial outer side of the holder main body 5 and the inner peripheral side (the inner side of the bottom) of the holder main body 5.

The tip of the first passage 11 (radially outer end)
Is closed by the folded first lid 15.
The first lid portion 15 extending radially outward from the bottom end of the first passage 11 (see FIG. 2) is bent at a right angle. Further, the tip (the end in the axial direction) of the second passage 12 constituting a part of the third passage 13 is closed by the bent second lid 16. In addition, this second
The lid portion 16 (see FIG. 2) extending from the radially outer end of the second passage 12 in the axial direction of the holder body 5 is bent at a right angle.

The blower motor 2 is a DC motor,
A yoke 21 having a bottomed cylindrical shape, a rotating shaft 3 supported by the yoke 21, an armature core 22 and a commutator 23 fixed to the rotating shaft 3, and a pair of power supply brushes 24 slidably contacting the commutator 23. And In the blower motor 2, a plurality of (for example, three) non-illustrated outer peripheral portions of the yoke 21 are fixed to the inner peripheral portion of the holder main body portion 5 while the bottom of the yoke 21 is screwed to the bottom of the holder main body portion 5 with screws 25. And is supported by being press-fitted and supported via a convex rib (not shown). A blow hole 26 is formed at a position (the predetermined angle position) corresponding to the communication hole 9 (third passage 13) on the bottom of the yoke 21.

The fan 4 is fixed to the tip of the rotating shaft 3 protruding from the yoke 21 as shown by a two-dot chain line in FIG. The radius of the fan 4 of the present embodiment is set to be substantially the same as the length from the axis center of the holder main body 5 to the fixing ring 7. Also, the fan 4 of the present embodiment
Is a known device that, when rotated, inhales air above and exhausts sideways and downwards.

In the blower motor device configured as described above, the fixing ring 7 is fixed to a predetermined position of the vehicle (not shown). Next, a method for manufacturing the motor holder 1 will be described with reference to FIG.

The motor holder 1 is divided into an upper mold 31 and a lower mold 3.
2. The first and second slide cores 33 and 34 are integrally formed. The upper mold 31 is provided with the first and second lids 15 and 16.
Are formed substantially corresponding to the bottom surface of the motor holder 1 before being bent. The upper mold 31 has a protrusion 31a for forming the inner surface of the second passage 12 so as to protrude to a position connected to the first passage 11 to be formed. In this molding, since the second lid 16 is molded before being bent, the upper mold 31 can be formed with a projection 31a for molding the inner surface of the second passage 12 in a protruding manner.

A molten resin filling hole 31b is formed in the upper mold 31 at a position corresponding to the bottom of the holder body 5. Further, the upper mold 31 is placed at a position corresponding to the bending position of the second lid portion 16 before being bent.
1 and a direction intersecting the moving direction of the lower mold 32,
A slide core insertion hole 31c penetrating in the left-right direction is formed. The first slide core 33 is provided in the slide core insertion hole 31c so as to be movable in the left-right direction in a direction intersecting the moving direction of the upper mold 31 and the lower mold 32. A second lid 1 is provided at the tip of the first slide core 33.
Groove 16a for making it possible to easily bend 6
A groove forming protrusion 33a is formed to form a groove (see FIG. 2).

The upper mold 31 has a bending groove 1 at a position corresponding to the bending position of the first lid portion 15 before bending so that the first lid portion 15 can be easily bent.
A groove forming protrusion 31d is formed to form 5a (see FIG. 2).

The lower mold 32 is provided with the first and second lids 1.
5 and 16 are formed substantially corresponding to the surface on the opening side of the motor holder 1 before being bent. This lower mold 3
2, a protrusion 32a for forming the suction port 14 is formed so as to protrude to a position connected to the first passage 11 to be formed.

The inner surface 11a of the first passage 11 is located at a position corresponding to the first passage 11 of the upper mold 31 and the lower mold 32.
Core insertion hole concave portion 3 extending as if extended
1e and 32b are formed respectively. A second slide core 3 for forming the inner surface 11a of the first passage 11 is provided between the two slide core insertion hole forming recesses 31e and 32b.
Reference numeral 4 denotes a direction intersecting the movement direction of the upper mold 31 and the lower mold 32, and is provided so as to be movable in the left-right direction.

Then, first, the upper die 31, the lower die 32, the first and second slide cores 33,
As shown in FIG. 3, the first and second slide cores 34 are brought into a closed state (the upper mold 31 and the lower
3 and 34 are inserted to a predetermined position), and the molten resin is filled into the inside through the molten resin filling hole 31b.

Next, after the molten resin is cured, the first and second slide cores 33 and 34 are extracted, the upper mold 31 and the lower mold 32 are vertically separated from each other, and the bending grooves 15a and 16 are formed.
The motor holder 1 (see FIG. 2) is formed before the first and second lid portions 15 and 16 formed with a are bent.

Then, the motor holder 1 (see FIG. 1) is manufactured by bending and bonding the first and second lid portions 15, 16 at the bending grooves 15a, 16a. In the blower motor device configured as described above, when the drive voltage is supplied to the blower motor 2, the fan 4 rotates together with the rotating shaft 3,
The air above the fan 4 (vehicle inlet) is sucked and exhausted to the side (vehicle outlet) and below, and a blowing operation is performed. At this time, the air is blown into the air path 8 (first to third
It is introduced into the inner peripheral side of the holder main body 5 through the passages 11 to 13), and is introduced into the yoke 21 through the ventilation holes 26. Therefore, heat generation inside the blower motor 2 (particularly, the power supply brush 24) is suppressed.

Next, the characteristic operation and effect of the first embodiment will be described below. (1) Since the motor holder 1 is integrally formed of resin using the upper mold 31, the lower mold 32, and the first and second slide cores 33 and 34, the number of parts is reduced to one. Therefore, parts management becomes easy. Also, the number of molds (upper mold 31 and lower mold 32) to be manufactured is reduced. Further, it is not necessary to assemble with the mounting screws 91 as in the prior art. From these, the manufacturing cost of the motor holder 1 can be reduced.

(2) The first lid portion 15 which is bent and covers the front end (radially outer end) of the first passage 11.
Was provided. Then, the inner surface 11a of the first passage 11 penetrating radially outward is formed using the second slide core 34,
The first lid 15 was bent to cover the radially outer end of the first passage 11 so as to manufacture the first passage 11. That is, by providing the first lid portion 15, the first passage 11 can be integrally formed. Therefore, the motor holder 1 can be easily formed integrally.

(3) At the front end (axial end) of the second passage 12, there is provided a second lid 16 which is bent to cover the front end. Then, a projection 31a for forming the inner surface of the second passage 12 is provided in the upper mold 31, and the inner surface of the second passage 12 penetrating in the axial direction is formed by the protrusion 31a.
The lid 16 was bent to close the tip of the second passage 12 for manufacturing. That is, by providing the second lid portion 16, the second passage 12 can be integrally formed. Therefore, the motor holder 1 can be easily formed integrally.

(4) A ventilation hole 26 is formed at a position corresponding to the communication hole 9 (third passage 13) at the bottom of the yoke 21. Accordingly, air is introduced into the inner peripheral side of the holder main body 5 through the air passage 8 (first to third passages 11 to 13), and is also introduced into the yoke 21 through the air holes 26. . Therefore, heat generation inside the blower motor 2 (particularly, the power supply brush 24) is efficiently suppressed.

(5) In the prior art (see FIG. 8), a part (the center in the circumferential direction) of the suction port 89a of the concave portion 89 of the air passage section.
Since the mounting portion 89b is formed in the suction port 89a, the suction port 89a is narrowed and it is difficult for air to enter the air passage section 88. However, in the present embodiment, the mounting section 89b and the like are unnecessary, and the suction port 1
4 can be secured larger than in the prior art (see FIG. 8). Therefore, the air is easily introduced into the air passage 8 (first to third passages 11 to 13), and heat generation inside the blower motor 2 (particularly, the power supply brush 24) is more efficiently suppressed.

FIG. 4 shows the results of the cooling performance experiment of the conventional technology (see FIG. 8) and the blower motor device of the present embodiment.
Shown in As shown in FIG. 4, while the wind speed inside the blower motor 82 of the related art (see FIG. 8) is about 10.8 (m / s), the wind speed inside the blower motor 2 of the present embodiment is It was about 11.7 (m / s). Then, the power supply brush 95 on the low potential (-) side of the prior art (see FIG. 8).
Is about 167 (° C.), whereas the temperature of the power supply brush 24 on the low potential (−) side in this embodiment is about 15 (° C.).
4 (° C.). Further, while the temperature of the power supply brush 95 on the high potential (+) side in the related art (see FIG. 8) is about 155 (° C.), the power supply brush 95 on the high potential (+) side in the present embodiment is used. The temperature of the brush 24 became about 141 (° C.).

(Second Embodiment) A second embodiment in which the present invention is embodied in a vehicle blower motor device will be described below with reference to FIGS. In the second embodiment, only the motor holder is different from the first embodiment, and the blower motor 2 and the like are the same as those in the first embodiment. The reference numerals are used, and a detailed description thereof is partially omitted.

The blower motor device, as shown in FIG.
The motor includes a motor holder 41 fixed to a vehicle (not shown), a blower motor 2 held by the motor holder 41, and a fan 4 fixed to the rotating shaft 3 of the blower motor 2.

The motor holder 41 is made of resin, and has a holder main body 42 formed in a substantially cylindrical shape having a bottom so as to hold the blower motor 2 on the inner peripheral side, and radially outward from the opening side of the holder main body 42. A substantially disk-shaped connecting portion 43 extending, a fixing ring portion 44 formed at a tip of the connecting portion 43, and a predetermined angular position of the connecting portion 43, and a radially outer side of the holder body portion 42 and the holder body portion. And an air passage section 45 communicating with the inner peripheral side of the air passage 42.

The air passage 45 is provided in the holder main body 42.
(The connecting portion 43 and the fixing ring portion 44). Specifically, a communication hole 46 as an opening is formed at the predetermined angular position on the outer peripheral side of the bottom of the holder main body 42. The air passage 45 is formed in a hollow shape and extends from the fixing ring 44 to the outer periphery of the holder main body 42, and a tip of the first passage 51 (the holder main body 4).
A second passage 52 extending from the bottom side of the holder main body 42 to a position covering the communication hole 46 on the axial center side of the holder main body 42. The first passage 5
A suction port 53 is formed at the front end of the holder 1 as an opening that opens in the same direction (axial direction) as the opening of the holder body 42. In addition, the lower end of the first passage 51 (the end in the axial direction, which is the lower end in FIG. 5) is radially changed according to the communication hole 46 and the suction port 53 located at different positions in the axial direction. Inclined. With the above configuration, the air passage 45 communicates the radial outside of the holder main body 42 and the inner peripheral side (the inside of the bottom) of the holder main body 42 by the first and second passages 51 and 52.

The lower end of the first passage 51 (the end in the axial direction, which is the lower end in FIG. 5) is closed by a lid 54 constituting a bent lower end wall. The lid portion 54 includes first to third lid portions 55 to 57 (see FIG. 6) in which the lower end portion of the first passage 51 is divided into a plurality (three).

The first and second lids 55 and 56, which are respectively extended from lower ends of the side walls 51a and 51b of the first passage 51 (see FIG. 6), are bent at right angles. The first and second lids 55 and 56 of the present embodiment
Is bent while heat is applied to its base end. The first and second lids 55 and 56 are formed so that the tips of the first and second lids are aligned at the center, that is, a double door type. Further, a plurality of (two) semicircular fitting concave portions 55a, 56a are provided at the respective distal end portions of the first and second lid portions 55, 56.
Is formed. Notches 55b, 56 are provided at the radially outer ends of the first and second lids 55, 56 so that there is a gap when the ends are fitted together at the center.
b is formed. Then, the first and second lids 55,
56, in a bent state, the fitting recesses 55a,
The fitting 56a is fitted to fitting projections 58, 59 extending from the upper end wall 51c of the first passage 51, and is held by the fitting. In this embodiment, the fitting recesses 55a, 56a
The fitting points of the fitting projections 58 and 59 are reinforced by heat caulking.

The third lid portion 57 extends from the distal end wall 51d of the distal end portion (radially outer end portion) of the first passage 51 (see FIG. 6) and is bent at a right angle. The third lid 57 of the present embodiment is bent while applying heat to the base end. The third lid 57 is provided with cutouts 55b, 56b of the first and second lids 55, 56.
Is formed so as to close the gap formed by. or,
A fitting slit 57a extending toward the base end is formed at the distal end of the third lid 57. And the third lid 57 is
In the bent state, the fitting slit 57a is
The passage 51 is fitted to a fitting projection 60 extending from the upper end wall 51c of the passage 51, and is held by the fitting. In the present embodiment, the fitting portion between the fitting slit 57a and the fitting projection 60 is reinforced by heat caulking.

The blower motor 2 is a DC motor,
A yoke 21 having a bottomed cylindrical shape, a rotating shaft 3 supported by the yoke 21, an armature core 22 and a commutator 23 fixed to the rotating shaft 3, and a pair of power supply brushes 24 slidably contacting the commutator 23. And The blower motor 2 has the bottom of the yoke 21 screwed to the bottom of the holder body 42 with the screw 25,
The outer periphery of the yoke 21 is supported on the inner periphery of the holder main body 42 via a plurality of (for example, three) rubber materials (not shown) or is press-fitted and supported via a not-shown convex rib. Have been. At a position (the predetermined angle position) corresponding to the communication hole 46 (the second passage 52) on the bottom of the yoke 21, the ventilation hole 26 is formed.

The fan 4 is fixed to the tip of the rotating shaft 3 protruding from the yoke 21 as shown by a two-dot chain line in FIG. In the blower motor device configured as described above, the fixing ring portion 44 is fixed to a predetermined position of a vehicle (not shown).

Next, a method of manufacturing the motor holder 41 will be described with reference to FIG. The motor holder 1 is integrally formed with the upper mold 61 and the lower mold 62. Upper mold 61
Is formed substantially corresponding to the bottom surface of the motor holder 41 (see FIG. 6) before the lid portion 54 (first to third lid portions 55 to 57) is bent. This upper mold 61
There are three inner surfaces of the air passage 45, more specifically, the inner surfaces of the side walls 51a, 51b and the upper end wall 51c of the first passage 51, and the projections 61a for forming the fitting projections 58-60.
Are formed so as to protrude at positions corresponding to the air passage section 45. In this molding, the lid 54 (the first to third lids 55) is used.
To 57) can be formed in a state before being bent, so that the protrusions 61a for forming the three inner surfaces of the air passage portion 45 can be formed so as to protrude. In addition, the upper mold 61 is formed with concave portions 61b and 61c for forming the lid portion 54 (first to third lid portions 55 to 57). Also, upper die 6
1 at a position corresponding to the bottom of the holder main body 42,
A molten resin filling hole 61d is formed.

The lower mold 62 is formed substantially corresponding to the surface of the motor holder 41 on the opening side. This lower mold 6
2, a protrusion 62a for forming the suction port 53 is formed so as to protrude to the position of the lower end (the lower end in FIG. 5) of the first passage 51 to be formed.

Then, as shown in FIG. 7, the upper mold 61 and the lower mold 62 configured as described above are closed (the upper mold 61 and the lower mold 62 are brought into contact with each other). Status)
Then, the molten resin is filled into the inside through the molten resin filling hole 61d.

Next, after the molten resin is cured, the upper mold 61 and the lower mold 62 are vertically separated from each other, and the motor holder before the lid 54 (first to third lids 55 to 57) is bent. 41 (see FIG. 6).

Then, the lid 54 (first to third lids 55 to 55)
57) is folded before cooling or while applying heat to the base end. Then, the fitting concave portions 55a and 56a and the fitting slit 57a of the first to third lid portions 55 to 57 are fitted to the fitting convex portions 58 to 60. Then, the fitting recesses 55a, 5
The motor holder 41 (see FIG. 5) is manufactured by heat caulking the fitting portions of the fitting protrusions 58 to 60 with the fitting slit 57a and the fitting slit 57a.

In the blower motor device configured as described above, when a drive voltage is supplied to the blower motor 2, the fan 4 rotates together with the rotating shaft 3, and air above the fan 4 (vehicle inlet) is sucked. At the same time, the air is exhausted to the side (vehicle outlet) and downward, and a blowing operation is performed. At this time, air is introduced into the inner peripheral side of the holder main body 42 through the air passage 45 (the first and second passages 51 and 52), and
The air is introduced into the yoke 21 through the air holes 26. Therefore, heat generation inside the blower motor 2 (particularly, the power supply brush 24) is suppressed.

Next, the characteristic operation and effect of the second embodiment will be described below. (1) Since the motor holder 41 is integrally formed of resin using the upper mold 61 and the lower mold 62, the number of parts is reduced to one. Therefore, parts management becomes easy. Also, the number of molds (upper mold 61 and lower mold 62) to be manufactured is reduced. Further, it is not necessary to assemble with the mounting screws 91 as in the prior art. For these reasons, the manufacturing cost of the motor holder 41 can be reduced.

(2) The lid 54 (the first end of the first passage 51), which is bent at the lower end (the end in the axial direction, which is the lower end in FIG. 5) to close the lower end. First to third lid portions 55 to 57) are provided. Therefore, the upper mold 61 is provided with three inner surfaces of the air passage 45, more specifically, the side wall 51 of the first passage 51.
a, 51b and a projection 61a for forming the inner surface of the upper end wall 51c can be formed, and the upper die 61 and the lower die 62 are used to form the first passage 5 (without using a slide core).
The first side walls 51a and 51b and the upper end wall 51c can be formed, and the lid 54 (first to third lids 55 to 5) can be formed.
7) can be formed. Therefore, the motor holder 4
1 can be easily formed integrally.

(3) The first to third lid portions 55 to 57 are bent, and the fitting concave portions 55a and 56a and the fitting slit 57a are fitted to the fitting convex portions 58 to 60, respectively. It is held by fitting. Therefore, it can be easily manufactured, and other members such as an adhesive are not required.

(4) The fitting portions between the fitting concave portions 55a, 56a and the fitting convex portions 58, 59 are reinforced by heat caulking, so that the lid portion 54 (first to third lid portions 55 to 57) is provided. Can be reliably held in a folded state.

(5) The first to third lids 55 to 55 are formed by dividing the lower end of the first passage 51 into a plurality (three).
57 (see FIG. 6). Therefore, the lid 54 (the first to third lids 55 to 5) in the open state (the state before being closed)
The projection amount of 7) can be made smaller than that of the undivided one (one lid portion). In the present embodiment, since the first and second lids 55 and 56 are of the double-open type, the amount of projection of the lid 54 in the open state (the state before being closed) is approximately half. That is, since the amount of protrusion of the lid portion 54 at the time of molding using the upper mold 61 and the lower mold 62 is substantially halved, the size of the upper mold 61 can be reduced, for example.

(6) At the bottom of the yoke 21, a position corresponding to the communication hole 46 (second passage 52) is
Was formed. Therefore, air is introduced into the inner peripheral side of the holder main body 42 through the air passage 45 (the first and second passages 51 and 52), and the yoke 21 through the air vent 26.
Introduced inside. Therefore, heat generation inside the blower motor 2 (particularly, the power supply brush 24) is efficiently suppressed.

(7) In the prior art (see FIG. 8), a part (the center in the circumferential direction) of the suction port 89a of the concave portion 89 constituting the air passage portion.
Since the mounting portion 89b is formed in the air inlet 89a, the air inlet 89a becomes narrower and it is difficult for air to enter the air passage portion 88. However, in the present embodiment, the mounting portion 89b and the like become unnecessary, and
3 can be secured larger than the prior art (see FIG. 8). Therefore, the air is supplied to the air passage 45 (the first and second air passages).
The heat is easily introduced into the passages 51 and 52), and heat generation inside the blower motor 2 (particularly, the power supply brush 24) is more efficiently suppressed.

(8) The lower end (the end in the axial direction, which is the lower end in FIG. 5) of the first passage 51 of the blower passage 45 is provided with the communication hole 46 and the suction port 53 at different positions in the axial direction. The air flows smoothly because it is inclined with respect to the radial direction according to. Therefore, the cooling performance can be further improved, and the heat generation inside the blower motor 2 (particularly, the power supply brush 24) is more efficiently suppressed. Further, the air passage section 4 having the communication hole 46 and the suction port 53 at different positions in the axial direction.
The motor holder 41 provided with 5 is easily and integrally formed (without using a slide core or the like) only by forming one (one type) of lids 54 (first to third lids 55 to 57). be able to.

The above embodiment may be modified as follows. In the above embodiments, the first and second passages 11 and 12 are used.
The lids 54 (first to third lids 55 to 57) are provided with the first and second lids 15 and 16 at the respective distal ends, or at the lower end of the air passage 45 (first passage 51). However, if it becomes possible to integrally mold the motor holder, a lid may be provided at another location. For example, the first embodiment of the first embodiment
The lid 15 may be formed in a bent shape, the opening of the holder body 5 of the first passage 11 may be formed as a lid, and the lid may be bent later to form the first passage 11. Even in this case, the same effect as that of the above embodiment can be obtained.

In each of the above embodiments, the motor holders 1, 41 are provided with the holder main bodies 5, 42 and the connecting parts 6, 43.
And the fixing ring portions 7 and 44, and the air passage portions 8 and 45. , 4
The 3 and the fixing ring portions 7 and 44 may be omitted or changed to another shape as appropriate. Even in this case, the same effect as that of the above embodiment can be obtained.

The motor holders 1 and 4 of the above embodiments
1, a holder main body 5, 42 is formed in a substantially cylindrical shape with a bottom, and the holder main body 5 is formed by air blowing passages 8, 45 (first to third passages 11 to 13, first and second passages 51, 52). 5,4
2 and the inside of the bottom of the holder main bodies 5 and 42 are communicated with each other. However, the air passages allow the radial outside of the holder main bodies 5 and 42 and the holder main bodies 5 and 42 to communicate with each other. The shape may be changed to another shape as long as the shape is communicated with the inner peripheral side.
For example, the configuration may be such that the air passage section only extends radially outward from the holder main body, and the radial outer side of the holder main body and the inner peripheral side of the holder main body are linearly communicated. In this case, the holder body may not have the bottom. Even in this case, the same effect as that of the above embodiment can be obtained.

In the first embodiment, the air passage section 8
Is formed to extend radially outward of the holder main body 5 at right angles to the axial direction of the holder main body 5, but if the first passage 11 extends radially outward of the holder main body 5, the holder The main body 5 may be formed so as to extend other than at right angles to the axial direction, that is, to extend in an inclined manner. In this case, the second slide core 34 can be moved in a direction intersecting with the movement direction of the upper mold 31 and the lower mold 32 and in a direction inclined from the movement direction of the upper mold 31 and the lower mold 32. It is necessary to provide in. Also, in the first slide core 33 for forming the bending groove 16a, the direction intersects the moving direction of the upper mold 31 and the lower mold 32, and the moving direction of the upper mold 31 and the lower mold 32. It may be provided so as to be movable in a direction inclined from. Even in this case, effects similar to the effects of the above embodiment can be obtained.

In the first embodiment, the upper mold 3
1, lower mold 32, first and second slide cores 33, 34
Is used to form the motor holder 1 (see FIG. 2) in which the bending grooves 15a, 16a are formed and the first and second lids 15, 16 are not bent, and then the first and second lids 1 are formed.
5 and 16 were bent by bending grooves 15a and 16a,
The bending grooves 15a and 16a may be omitted depending on the material and thickness of the resin, the processing method at the time of bending, and the like. The second
When the bending groove 16a of the lid 16 is omitted, the upper mold 3
1 has a slide core insertion hole 31c and a first slide core 3
There is no need to provide 3.

In the second embodiment, the first to third
When the lids 55 to 57 are bent, the fitting concave portions 55a and 56a and the fitting slit 57a are fitted to the fitting convex portions 58.
６０60 and held by this fitting,
It may be held by a method (structure) other than fitting. For example,
It may be held by bonding with an adhesive. In this case, the fitting projections 58 to 60 become unnecessary. Even in such a case, the effects (1), (2), and
The same effects as (5) to (8) can be obtained.

In the second embodiment, the fitting recess 5
Although the fitting portions between the fitting protrusions 58 and 59 and the fitting protrusions 58 and 59 are reinforced by heat caulking, they may be reinforced by ultrasonic caulking or the like. Even in this case, the lid 54 (the first to third lids 55)
To 57) can be reliably held in a folded state. Further, it is not necessary to reinforce by heat caulking or ultrasonic caulking. Even in this case, effects similar to the effects (1) to (3) and (5) to (8) of the second embodiment can be obtained.

In the second embodiment, the cover 54
Consisted of first to third lids 55 to 57 (see FIG. 6) in which the lower end of the first passage 51 was divided into a plurality (three), but the first to third lids 55 to 57 were formed. One (1
Sheet). Even in this case, the effects (1) to (4) and (6) of the second embodiment are obtained.
The same effect as (8) can be obtained.

In each of the above embodiments, the blower motor 2
Although the air hole 26 is formed at the bottom of the yoke 21, a blower motor without the air hole 26 may be used. In this case, the air is supplied to the air passages 8, 45.
And between the inner peripheral side of the holder main body parts 5 and 42 and the outer peripheral side of the blower motor. Therefore, the yoke is cooled, and the heat generation of the blower motor is suppressed.

In the above embodiments, the blower motor 2
Is a DC motor having a power supply brush 24 and the like,
For example, another motor such as a brushless motor may be used. Also in this case, heat generation of the motor is suppressed.

In the above embodiment, the present invention is embodied in a blower motor device for a vehicle. However, the same motor holder may be used in another device. The technical ideas other than those described in the claims that can be grasped from the above embodiment will be described below together with their effects.

(A) In the motor holder according to the fourth aspect, the holder main body has a bottom at one end thereof,
The motor holder, wherein the blower passage communicates between a radially outer side of the holder body and an inner side of the bottom. With this configuration, the outside of the holder body in the radial direction and the inside of the bottom formed at one end of the holder body are communicated by the air passage.

(B) Claims 1 to 10 and (A)
A motor holder according to any one of the above, a blower motor held on the inner peripheral side of the holder main body and having a rotating shaft protruding from the holder main body, and a fan fixed to the rotating shaft. A blower motor device, wherein air blown by the operation of the fan is introduced to the inner peripheral side of the holder main body through the air flow path. With this configuration, the air blown by the operation of the fan is introduced to the inner peripheral side of the holder main body through the air blow path.

(C) The blower motor device according to (B), wherein the yoke of the blower motor is provided with a blow hole for communicating the inner peripheral side of the yoke with the inner peripheral side of the holder body. Blower motor device. In this way, air is introduced into the yoke from the air holes.

(D) The blower motor device according to (c), wherein the blower hole is formed at the bottom of the yoke having a bottomed cylindrical shape.
In this way, the air is introduced into the yoke from the air holes formed in the bottom of the bottomed cylindrical yoke.

(E) In the method of manufacturing a motor holder according to the above (14), the holder main body has a bottom on one end side, and the air passage is formed between the holder main body and a radially outer side of the holder main body. A method for manufacturing a motor holder, wherein the motor holder communicates with the inside of a bottom. With this configuration, the outside of the holder body in the radial direction and the inside of the bottom formed at one end of the holder body are communicated by the air passage.

[0106]

As described in detail above, according to the first to tenth aspects of the present invention, it is possible to provide a motor holder capable of reducing manufacturing costs.

Further, according to the present invention, it is possible to provide a method of manufacturing a motor holder which can reduce the manufacturing cost.

[Brief description of the drawings]

FIG. 1 is an essential part cross-sectional view showing a vehicle blower motor device according to a first embodiment.

FIG. 2 is an explanatory diagram for explaining a method of manufacturing the motor holder according to the first embodiment.

FIG. 3 is an explanatory diagram for explaining the method for manufacturing the motor holder according to the first embodiment.

FIG. 4 is a performance comparison diagram showing the results of a cooling performance experiment of the conventional art and the present embodiment.

FIG. 5 is an essential part cross-sectional view showing a vehicle blower motor device according to a second embodiment;

FIG. 6 is an explanatory diagram for explaining a method for manufacturing the motor holder according to the second embodiment.

FIG. 7 is an explanatory diagram for explaining a method for manufacturing the motor holder according to the second embodiment.

FIG. 8 is a sectional view of a main part showing a conventional blower motor device for a vehicle.

[Description of References] 2 ... Blower motor (motor), 5, 42 ... Holder body, 8, 45 ... Blower path, 12 ... Second passage (axial direction passage), 14 ... Suction port (opening), 15 , 55: first lid (lid), 16, 56: second lid (lid), 31, 6
1 ... upper mold (upper mold), 32, 62 ... lower mold (lower mold), 3
Reference numeral 3 denotes a first slide core (slide core), 34 denotes a second slide core (slide core), 11a denotes an inner surface of a first passage, 16a denotes a bent groove of a second lid portion, and 46 denotes a communication hole (opening). ... Suction port (opening), 54 ... Lid, 57 ...
Third lid.

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Yoshiyuki Matsushita 390 Umeda, Kosai-shi, Shizuoka Prefecture Asmo Co., Ltd. (72) Inventor Yasushi Ueda 390 Umeda, Kosai-shi, Shizuoka Prefecture Asmo Co., Ltd. 390 Umeda, Kosai-shi, Shizuoka Prefecture Asmo Co., Ltd.F-term within the company (reference) TT26

Claims (19)

[Claims] 1. A holder body (5, 42) formed in a substantially cylindrical shape to hold a motor (2) on an inner peripheral side, and extending radially outward from the holder body (5, 42)
An air passage section (8,
45), wherein the holder main body part (5, 42) and the blower path part (8, 4) are provided.
(5) A motor holder characterized by being integrally molded with resin. 2. The motor holder according to claim 1, wherein said holder body (5, 42) and said air passage (8, 4).
At least a part of 5) has a lid (15,
16, 54 to 57), whereby the holder body (5, 42) and the air passage (8, 45) are integrally formed. 3. The motor holder according to claim 2, wherein a radially outer opening (14) of the air passage (8) is formed by:
An opening is provided in a direction parallel to the axial center of the holder main body (5), and the lid (15) is provided at a radially outer end of the air flow path (8) and closes the radially outer end. A motor holder characterized in that: 4. The motor holder according to claim 2, wherein the holder main body (5) side of the air passage (8) extends along the outer periphery of the holder main body (5). An axial passage (12) extending to one end of the part (5), wherein the lid (16) is provided at a tip of the axial passage (12), and closes the tip. Characteristic motor holder. 5. The motor holder according to claim 2, wherein the lid (54 to 57) is provided at an axial end of the air passage (45) extending in a radial direction, and the axial end is provided at the axial end. A motor holder characterized by closing off. 6. The motor holder according to claim 2, wherein the lid (54-57) is held in a bent state by fitting. 7. The motor holder according to claim 6, wherein a fitting portion of the lid (54-57) is reinforced by heat caulking or ultrasonic caulking. 8. The motor according to claim 2, wherein the lid (54-57) for closing one surface is divided into a plurality of parts. holder. 9. The motor holder according to claim 8, wherein the lid (55, 56) is a double-open type. 10. The motor holder according to claim 2, wherein the air passage (45) has both openings (46, 53).
Are located at different positions in the axial direction, and the axial end of the air passage portion (45) extending in the radial direction is inclined with respect to the radial direction in accordance with the two openings (46, 53). A motor holder. 11. A holder body (5) formed in a substantially cylindrical shape to hold a motor (2) on an inner peripheral side, and a holder body (5) extending radially outward from the holder body (5). A method for manufacturing a motor holder, comprising: a blower passage (8) communicating between a radially outer side of (5) and an inner peripheral side of the holder main body (5), wherein an upper die (31) and a lower die (32) and a slide core (3
A method for manufacturing a motor holder, wherein the holder body (5) and the air passage (8) are integrally formed of resin by using (3, 34). 12. The method for manufacturing a motor holder according to claim 11, wherein the upper die (31), the lower die (32), and the slide core (3).
3, 34), a bendable lid (15, 16) is formed, and at least a part of the holder body (5) and the air passage (8) is bent by the lid (15, 16). The manufacturing method of the motor holder characterized by forming by this. 13. The method for manufacturing a motor holder according to claim 12, wherein a radially outer opening (14) of the blower passage (8) is formed by:
An opening is provided in a direction parallel to the axial center of the holder main body (5), and the lid (15) is provided at a radially outer end of the air flow path (8) and closes the radially outer end. A method for manufacturing a motor holder, comprising: 14. The method for manufacturing a motor holder according to claim 12, wherein the side of the air passage (8) on the side of the holder main body (5) extends along the outer periphery of the holder main body (5). The holder body (5) has an axial passage (12) extending to one end thereof, and the lid (16) is provided at a tip of the axial passage (12). A method for manufacturing a motor holder, wherein the motor holder is closed. 15. The method for manufacturing a motor holder according to claim 13, wherein the upper die (31) and the lower die (32) are provided so as to be relatively movable in the axial direction of the holder body (5) to be formed. The slide core (34) is provided so as to be movable in a direction intersecting with the movement direction of the upper mold (31) and the lower mold (32), and forms an inner surface (11a) of the blower path (8) to be molded. A method for manufacturing a motor holder, characterized in that the method is for molding a motor. 16. The method for manufacturing a motor holder according to claim 14, wherein the upper die (31) and the lower die (32) are provided so as to be relatively movable in the axial direction of the holder main body (5) to be molded. The slide core (33) is provided so as to be movable in a direction intersecting with the movement direction of the upper mold (31) and the lower mold (32), and is configured to move the tip of the axial passage (12) to be molded. A method for manufacturing a motor holder, characterized by forming a bending groove (16a) for bending the lid (16) to be closed. 17. A holder body (42) formed in a substantially cylindrical shape to hold a motor (2) on an inner peripheral side, and a holder body (42) extending radially outward from the holder body (42). (42) and the holder body (4)
2) A method for manufacturing a motor holder comprising an air passage (45) communicating with the inner peripheral side of (2), wherein the holder main body (42) is formed using an upper die (61) and a lower die (62). ) And said air passage section (45) are integrally molded of resin. 18. The method for manufacturing a motor holder according to claim 17, wherein lids (54 to 57) that can be bent by an upper die (61) and a lower die (62) are formed, and the holder main body is formed. (42)
And forming at least a part of the air passage portion (45) by bending the lid portions (54 to 57). 19. The method for manufacturing a motor holder according to claim 18, wherein the lid portion (54-57) is provided at an axial end of the air passage portion (45) extending in a radial direction, and the axial line is provided. A method for manufacturing a motor holder, comprising closing an end in a direction.