CN105515268B - A kind of electric machine support and the air-conditioner outdoor unit with it - Google Patents

Abstract

The invention provides a motor bracket, comprising a mounting plate (4) for mounting the motor, the mounting plate (4) is provided with a plurality of circular mounting holes (42) for fixing the motor, and in the mounting holes (42) The position of the radial outer periphery is provided with a corrugated ring structure (43) that reduces the transmission of motor vibration to at least one of the motor brackets, and the corrugated ring structure (43) is concentric with the mounting hole (42) ring structure. Through the motor bracket of the present invention, it is possible to prevent and reduce the vibration generated during the operation of the motor from being transmitted to the motor bracket to cause the motor bracket to vibrate, and at the same time reduce the loose parts and material fatigue caused by vibration excitation, and improve the reliability of the external unit of the air conditioner in particular. sex and longevity. The invention also relates to an air conditioner outdoor unit with the motor bracket.

Description

A motor bracket and an air conditioner outdoor unit having the same

technical field

The invention belongs to the technical field of compressors, refrigeration and air conditioners, and in particular relates to a motor bracket and an air conditioner outdoor unit equipped with it.

Background technique

In the prior art, for the split-type household air conditioner external unit, the fan is installed on the motor bracket, and the axial fan blade is assembled on the shaft end of the motor; several structures of common motor brackets mainly include CN202134983U. Button holes are used to meet the installation of multiple types of motors. CN202134983U increases the support strength of the motor bracket and reduces materials by setting the bracket bending. CN201438026U sets the folded edge to make the bracket top plate avoid the vibration transmission of the air conditioner top cover plate.

After the air conditioner is started, the fan blades rotate to generate a large axial thrust, which will excite the motor bracket to vibrate, and then transmit it to the panels of the air conditioner external unit through the motor bracket, radiating a large noise, and the vibration excitation will cause parts to loosen, Material fatigue reduces the reliability and life of the external unit.

However, none of these solutions starts from directly reducing the vibration excitation transmitted from the motor to the motor support, which often causes the vibration of the motor support to be relatively large.

Because the motor bracket in the prior art has the technical problem that the operation of the motor will transmit relatively large vibrations to the motor bracket, which will cause its vibration and noise to be large, so the present invention researches and designs a motor bracket and an outdoor air conditioner with it. machine.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to overcome the defects of the motor bracket in the prior art that the operation of the motor will transmit relatively large vibrations to the motor bracket, resulting in relatively high vibration and noise, thereby providing a motor bracket and An air conditioner outdoor unit with it.

The invention provides a motor bracket, which includes a mounting plate for mounting the motor. The mounting plate is provided with a plurality of circular mounting holes for fixing the motor. The vibration is transmitted to at least one corrugated ring structure of the motor bracket, and the corrugated ring structure is a circular ring structure concentric with the installation hole.

Preferably, the cross-section of the corrugated ring structure in a plane passing through the axis of the mounting hole is formed as a first circular arc segment on one side of the axis of the mounting hole and a second circular circular segment on the other side, and The first circular arc segment and the second circular arc segment are symmetrical with respect to the axial direction of the installation hole.

Preferably, the corrugated ring structure includes an annular protruding structure formed on one side of the mounting plate by integrally pressing the mounting plate portion around the mounting hole toward the axial direction of the mounting hole, and The other side of the mounting plate corresponds to the circular concave structure formed by the position of the circular protruding structure.

Preferably, the annular protruding structure is located on one side of the mounting plate where the motor is installed, and the annular concave structure is located on the other side of the mounting plate.

Preferably, the thickness of the mounting plate along the axial direction of the mounting hole is defined as t, and the height of the circular ring protrusion structure of the corrugated ring structure along the axial direction of the mounting hole is h above the side of the mounting plate where the motor is installed, and: h is t~3t.

Preferably, when the corrugated ring structure includes a circular concave structure, the radius of the circular concave structure is defined as r, and the radius r of the circular concave structure is t˜5t.

Preferably, there are multiple mounting holes, and at least one corrugated ring structure is provided on the radially outer periphery of each mounting hole.

Preferably, the number of the mounting holes is four, and at least one corrugated ring structure is provided on the radially outer periphery of each mounting hole.

Preferably, it also includes a spring arranged at the installation hole along its axial direction.

The present invention also provides an air conditioner outdoor unit, which includes an air conditioner base plate, a motor, and fan blades, and also includes the aforementioned motor bracket, which is arranged on the air conditioner base plate to support the motor.

A motor bracket provided by the present invention and an air conditioner outdoor unit provided with it have the following beneficial effects:

1. By setting the corrugated ring shock-absorbing structure on the motor bracket, it can effectively prevent and reduce the vibration generated when the motor is running to the motor bracket and cause the motor bracket to vibrate, effectively reducing vibration and noise and improving the performance of the motor. Especially the operating reliability and operating life of the outdoor unit of the air conditioner;

2. At the same time reduce the possibility of parts loosening and material fatigue caused by vibration excitation, and improve the reliability and life of the air conditioner, especially the external unit.

Description of drawings

Fig. 1 is a partial structural schematic diagram of an air conditioner outdoor unit of the present invention;

Fig. 2 is a schematic structural view of the motor bracket of Fig. 1;

Fig. 3 is a partially enlarged schematic diagram of the mounting plate of Fig. 2;

Fig. 4 is a structural schematic view of the A-A section at the installation hole of Fig. 3, wherein: 4(a) is a perspective view thereof; 4(b) is a planar view thereof.

The reference signs in the figure represent:

1—upper base plate, 2—lower base plate, 3—long side plate, 4—installation plate, 41—accommodating hole, 42—installation hole, 43—corrugated ring structure, 431—circular convex structure, 432—circular depression Structure, 5—air conditioner base plate, 6—motor, 7—blade, 8—motor support.

Detailed ways

As shown in Figures 2-4, the present invention provides a motor bracket, including an upper base plate 1, a lower base plate 2, a side long plate 3, and The mounting plate 4 for installing the motor, wherein the central position of the mounting plate 4 is provided with an accommodation hole 41 for accommodating the motor, and surrounding holes 41 (preferably uniformly arranged along the circumference) for fixing the motor A plurality of circular mounting holes 42, and at least one of the radially outer peripheral positions of the mounting holes 42 is provided with a corrugated ring structure that reduces the transmission of motor vibration to at least one of the motor brackets, and the corrugated ring structure It is a ring structure concentric with the mounting hole. It is further preferred that the corrugated ring structure is parallel to the plane of the mounting plate.

Through the circular corrugated ring structure located on the radially outer periphery of the mounting hole on the motor bracket and concentric with the mounting hole, this structure will form an elastic damping stiffness K2 in the horizontal direction of the mounting plate, and an elastic damping stiffness in the normal direction of the mounting plate. The seismic stiffness is K1, thus forming a shock-absorbing ring structure; visually, the shock-absorbing ring is like a corrugated ring on the water surface. The corrugated ring damping structure can effectively and evenly unload the vibration from the axial direction of the mounting hole and the plane direction of the mounting plate, reduce the transmission of motor vibration to the motor bracket, and further reduce the impact of the motor bracket on the panels of the air conditioner. Vibration excitation, thereby improving the noise of the external machine, reducing the possibility of parts loosening and material fatigue caused by vibration excitation, and improving the reliability and life of the external machine.

As shown in Figures 4(a) and 4(b), preferably, the cross-section of the corrugated ring structure 43 in the plane passing through the axis of the mounting hole 42 is formed as the first on one side of the axis of the mounting hole 42 An arc segment of the circular ring and a second arc segment of the circular ring on the other side, and the first circular arc segment and the second arc segment of the circular ring are symmetrical with respect to the axial direction of the installation hole. In this way, it can unload the vibration from the installation hole like the corrugated ring on the water surface, and have an effective shock absorption effect.

Preferably, the corrugated ring structure 43 includes an annular protruding structure 431 formed on one side of the mounting plate 4 by integrally pressing the mounting plate portion around the mounting hole 42 toward the axial direction of the mounting hole 42 , and an annular recessed structure 432 formed at a position corresponding to the annular protruding structure 431 on the other side of the mounting plate 4 . The corrugated ring structure is integrally pressed and formed on the mounting plate around the mounting hole. On the one hand, it can improve the production efficiency and save materials. On the other hand, it also prevents the installation from being unstable due to the addition of components, so that the proper shock absorption cannot be achieved. Function and effect, while the ring convex structure is formed on one side of the mounting plate, the ring concave structure is formed on the other side, which not only improves the processing efficiency, but also can unload vibration on both the convex surface and the concave surface, so that The beneficial effect of shock absorption is enhanced.

Preferably, the annular protruding structure 431 is located on one side of the mounting plate 4 where the motor is installed, and the annular recessed structure 432 is located on the other side of the mounting plate 4 . Since the vibration mainly comes from the side where the motor is installed, processing the ring protrusion structure on the side where the motor is installed can effectively dampen and unload the axial direction of the installation hole and the plane direction of the installation plate, while on the other side Then, through the ring concave structure, the functions of auxiliary shock absorption and vibration unloading are performed.

As shown in Figure 4 (b), preferably, the thickness of the mounting plate 4 along the axial direction of the mounting hole 42 is defined as t, and the corrugation height of the corrugated ring structure 43 (that is, the ring raised structure is higher than the axial direction of the mounting hole) The distance from one side of the mounting plate on which the motor is installed) is h, the radius of the corrugated body (the radius of the ring recessed structure 432) is r, and: the corrugated height h is t～3t, the radius of the corrugated body (the radius of the inner circle of the ring) The radius (r) of the annular concave structure 432 is t˜5t. Set the corrugation height h to t～3t (that is, between one time the thickness of the mounting plate and three times the thickness of the mounting plate), and set the radius r of the corrugated body to t～5t (that is, one between the thickness of the mounting plate) is to make the difference between the elastic damping stiffness K2 and K1 of the corrugated shock absorbing ring as little as possible, and the distance between the edge of the motor accommodation hole on the mounting plate and the edge of the corrugated ring structure 43 is relatively small. Achieve a stable shock absorption effect and improve material utilization.

Further preferably, the number of the corrugated ring structures is more than two, and the more than two corrugated ring structures are all concentric with the axis of the installation hole. Enhance the function and effect of shock absorption.

Further preferably, there are multiple mounting holes, and a corrugated ring structure is provided on the radial periphery of each mounting hole. This can enhance the action and effect of damping vibration from the motor.

Further preferably, the number of the mounting holes is four, and at least one corrugated ring structure is provided on the radially outer periphery of each mounting hole. This is the preferred number and implementation of the mounting holes, so that the motor can be symmetrically and firmly fixed on the mounting plate of the motor bracket, and the radial outer circumference of each mounting hole is provided with a corrugated ring structure, which can enhance the effect of shock absorption and Effect.

Preferably, the shock absorbing structure includes a spring arranged at the mounting hole along its axial direction, and the motor is mounted on the mounting plate through screws and springs, but this structure is arranged in the axial direction of the mounting hole (that is, the normal direction of the mounting plate) ) provides a shock absorption effect, thereby enhancing the shock absorption effect in the axial direction of the mounting hole (ie, the normal direction of the mounting plate).

As shown in Figure 1, the present invention also provides an air-conditioning outdoor unit, including an air-conditioning base plate 5, a motor 6, and fan blades 7, and it also includes the aforementioned motor bracket 8, which is arranged on the air-conditioning base plate 5 Used to support the motor 6 . By including the aforementioned motor bracket with a shock-absorbing structure, it is possible to effectively prevent and reduce the vibration generated during the operation of the motor from being transmitted to the motor bracket, thereby causing the motor bracket to vibrate, effectively reducing vibration and noise, and improving the performance of the outdoor unit of the air conditioner. High operating reliability and service life; at the same time reduce the possibility of parts loosening and material fatigue caused by vibration excitation, and improve the reliability and service life of the air conditioner external unit.

Introduce preferred embodiment of the present invention below

As shown in Figure 1, it is a schematic diagram of the motor bracket system created by the present invention, which is mainly composed of fan blade 7, motor 6, and motor bracket 8; as shown in Figure 2, it is a schematic diagram of motor bracket 8, which is mainly divided into upper base plate 1 , side long plate 3, mounting plate 4, four parts such as bottom plate 2.

When the motor bracket system is assembled, the motor 6 is fixed on the mounting plate 4 through the mounting hole 42, and the fan blade 7 is installed on the shaft end of the motor 6, thereby forming the motor bracket system; finally, the bracket system is fixed to the panel of the air conditioner external unit.

During operation, the vibration excitation of the fan blade 7 and the motor 6 will be transmitted to the motor bracket 8 through the mounting plate 4, and then transmitted to the panels of the external unit of the air conditioner; the vibration will cause radiation noise from the motor bracket and the panels of the external unit, and long-term vibration will cause Loose components will also lead to component fatigue failure and reduce the reliability and life of the air conditioner.

The present invention improves the mounting plate 4. As shown in Figure 3, it is an enlarged view of the mounting plate 4. The present invention creates a corrugated ring structure 43 around the mounting hole 42 of the mounting plate 4; The ring structure is parallel to the plane of the mounting plate. This structure will form an elastic damping stiffness K2 in the horizontal direction of the mounting plate and an elastic damping stiffness K1 in the normal direction of the mounting plate, thus forming a shock-absorbing ring structure; visually , this shock absorbing ring is just like the corrugated ring on the water surface.

Through the damping structure of the corrugated ring structure 43 type, the vibration excitation transmitted from the motor 6 to the mounting plate 4 will be attenuated, and the vibration of the motor bracket 8 will be reduced, thereby reducing the impact of the vibration of the bracket on the panel of the external unit of the air conditioner; the motor bracket And the vibration reduction of the external unit panel of the air conditioner is conducive to improving the vibration and noise of the air conditioner, thereby reducing the possibility of loose connections of various components and vibration fatigue failure, and improving the reliability and life of the air conditioner. The corrugated ring structure 43 has a simple structure and process, and can be pressed by upper and lower molds, and the pressing direction is the normal direction of the mounting plate 4 . The thickness of the mounting plate 4 is t, the corrugation height of the corrugated ring structure is h, and the radius of the corrugated body is r. There are several requirements as follows:

a. Corrugation height h is t～3t;

b. The radius r of the corrugated body is t~5t.

If the mounting plate 4 has enough space, it can also be designed as a double corrugated or multi-corrugated structure along the radial direction of the mounting hole (8).

Springs are arranged at the mounting holes of the mounting plate, and the motor is mounted to the mounting plate through screws and springs. However, this structure can only provide shock absorption in the normal direction of the mounting plate, and the shock absorption direction is single.

Fix the motor on the motor bracket through the mounting hole on the motor bracket mounting plate; in order to reduce the vibration of the motor from being transmitted to the motor bracket, press a corrugated ring structure around the mounting hole of the mounting plate. The corrugated ring structure shock absorption structure can reduce the motor The vibration is transmitted to the motor bracket, thereby reducing the vibration excitation of the motor bracket to the panels of the air conditioner, thereby improving the noise of the external unit, reducing the possibility of loose parts and material fatigue caused by vibration excitation, and improving the reliability and life of the external unit.

The corrugated ring structure forms a shock-absorbing structure, which can reduce the transmission of motor vibration to the motor bracket; since the motor bracket is connected to the air-conditioning panel, this also reduces the vibration transmitted from the motor bracket to the air-conditioning panel, reducing the noise of the air-conditioning, reliability and Lifespan has been improved.

The present invention forms a shock-absorbing structure by pressing a corrugated ring structure 43 around the mounting hole 42 of the motor bracket mounting plate 4, reducing the transmission of motor excitation to the motor bracket, thereby reducing the vibration excitation of the motor bracket to each panel of the air conditioner, thereby improving the appearance Machine noise, while reducing the possibility of parts loosening and material fatigue caused by vibration excitation, and improving the reliability and life of the air conditioner external unit.

Those skilled in the art can easily understand that, on the premise of no conflict, the above-mentioned advantageous modes can be freely combined and superimposed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range. The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made, these improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (7)

1. a kind of electric machine support includes for installing the mounting plate of motor (4), it is characterised in that：It is arranged on the mounting plate (4) Multiple circular mounting holes (42) of fixed motor are useful for, and are set in the position of at least one mounting hole (42) outer radial periphery It is equipped with and reduces at least one ripple ring structure (43) that motor oscillating is transferred to the electric machine support, and the ripple ring structure (43) it is the circular ring structure concentric with the mounting hole (42)；

The ripple ring structure (43) includes by the mounting plate part around the mounting hole (42) to the mounting hole (42) Axis direction is integrally suppressed and in the annulus bulge-structure (431) of the side of the mounting plate (4) formation and in the mounting plate (4) the other side corresponds to the annulus sunk structure (432) that the position of the annulus bulge-structure (431) is formed；

It is t, the annulus bulge-structure of ripple ring structure (43) that the mounting plate (4), which is defined, along the thickness of mounting hole (42) axial direction (431) it is h the height of the installation motor one side of mounting plate to be higher by along mounting hole axis direction, and is had：H is t~3t；Described in definition The radius of annulus sunk structure (432) is r, and it is t~5t to have the radius r of the annulus sunk structure (432).

2. electric machine support according to claim 1, it is characterised in that：The ripple ring structure (43) is in the excessively described mounting hole (42) the section in axial plane is formed as the first annulus segmental arc in the mounting hole (42) axis side and the other side Second annulus segmental arc, and the first annulus segmental arc and axis direction pair of the second annulus segmental arc relative to the mounting hole Claim.

3. electric machine support according to claim 1, it is characterised in that：The annulus bulge-structure (431) is located at the peace The side of motor is installed, the annulus sunk structure (432) is located at the other side on the mounting plate (4) in loading board (4).

4. according to the electric machine support described in one of claim 1-3, it is characterised in that：The number of the mounting hole (42) is more It is a, and at least one ripple ring structure (43) is both provided in the outer radial periphery of each mounting hole (42).

5. electric machine support according to claim 4, it is characterised in that：The number of the mounting hole (42) is 4, and every The outer radial periphery of a mounting hole (42) is both provided at least one ripple ring structure (43).

6. according to the electric machine support described in one of claim 1-3, it is characterised in that：Further include being arranged in the mounting hole (42) The spring that place is arranged along its axis direction.

7. a kind of air-conditioner outdoor unit, including air-conditioning bottom plate (5), motor (6), flabellum (7), it is characterised in that：Further include that right is wanted The electric machine support (8) described in one of 1-6, the electric machine support (8) is asked to be set on the air-conditioning bottom plate (5) described for supporting Motor (6).