CN218497957U - Switch assembly of household appliance, door body of household appliance and household appliance - Google Patents

Abstract

The utility model relates to a switch module of household appliance, include: a touch panel; a first case constrained with the touch pad and having a first side opposite the touch pad; the first circuit board is accommodated in the first box body; the touch control film is provided with a front surface and a back surface, and the front surface of the touch control film is contacted with the touch pad; the method is characterized in that: the first side of the first box body is provided with a first opening, the first box body further comprises a pre-pressing spring made of a conductive material, the pre-pressing spring is arranged on the first circuit board, the head of the pre-pressing spring penetrates out of the first circuit board, the first opening is abutted to the reverse side of the touch control film, and therefore the sealing performance of a switch assembly of the household appliance is better. The utility model discloses still relate to an use the domestic appliance's that has aforementioned switch module the door body, also relate to an use the domestic appliance who has aforementioned door body.

Description

Switch assembly of household appliance, door body of household appliance and household appliance

Technical Field

The utility model relates to a domestic appliance, concretely relates to be a domestic appliance's switch module, still relate to an applied domestic appliance's that has aforementioned switch module the door body, also relate to an applied domestic appliance who has aforementioned door body.

Background

The buttons of conventional household appliances such as washing machines and water heaters are usually mechanical buttons, and the mechanical buttons are pressed to conduct a control circuit on a circuit board so as to control the program operation of the household appliances. However, such mechanical buttons are prone to failure after multiple presses because the button cannot be reset.

The existing household appliances such as a cleaning machine, a floor washing machine, an air conditioner and the like generally adopt a touch control mode to control program operation, and the touch control mode does not need to be provided with mechanical buttons needing to be reset by springs and the like, so that the household appliances can keep good touch control operation performance for a long time, and the surfaces of the household appliances are more attractive.

A common touch structure generally includes a touch film and a circuit board, the touch film has a sensing module, and the circuit board is provided with a controller, so that when the sensing module on the touch film senses a signal generated by a touch of a person, the signal can be transmitted to the controller on the circuit board, so that the controller controls related components of a household appliance to operate.

Because the switch assembly relates to a plurality of electrical components, in household appliances with more water, such as a cleaning machine, a washing machine, a water heater or a floor washing machine, the circuit board of the switch assembly needs to be filled with glue so as to prevent water vapor from permeating into the switch assembly to damage the components. In addition, in order to ensure the stability of signal transmission between the sensing module and the controller, the touch film and the circuit board are usually electrically connected by a pin and a slot on a wire. Because of the colloid flows the electric conduction that influences contact pin and slot in the slot easily, the contact pin in the switch module and the junction of slot can not the encapsulating at present, lead to switch module's leakproofness not enough, influence the life of switch module among the more domestic appliance of water consumption.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that provides a better domestic appliance's of leakproofness switch module to foretell technical current situation.

The second technical problem to be solved by the present invention is to provide a door body of a household appliance having the switch assembly of the household appliance.

The third technical problem to be solved by the present invention is to provide a household appliance with the door body.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a switch assembly of a household appliance, comprising:

a touch panel;

a first case constrained with the touch pad and having a first side opposite to the touch pad;

the first circuit board is accommodated in the first box body;

the touch control film is provided with a front surface and a back surface, and the front surface of the touch control film is contacted with the touch pad;

the method is characterized in that: the first side of the first box body is provided with a first opening and also comprises

The pre-pressing spring made of conductive materials is arranged on the first circuit board, and the head of the pre-pressing spring penetrates out of the first opening to be abutted against the reverse side of the touch control film.

Both the "contact" and the "collision" may occur directly between the two related components, so that the two related components are in direct contact or in direct collision, and a third component, such as a color film, which does not affect the signal sensing of the touch film, may be disposed between the two related components, so that the two related components are in indirect contact or in indirect collision.

The size of the first opening is not limited, and the first opening can be an opening or a partial opening of the first side surface of the box body.

The signal conduction between the sensing module on the touch membrane and the first circuit board is realized through the pre-pressing spring made of conductive materials, thereby allowing glue filling around the pre-pressing spring on the first circuit board of the switch assembly, and ensuring the sealing property of the switch assembly to be better, make steam be difficult to permeate to switch module inside and influence switch module's life to, because pre-compaction spring can remain throughout and touch membrane contact, make the signal transmission between touch membrane and the first circuit board more stable, make switch module be difficult to appear the phenomenon that touch-control operation is malfunctioning.

In order to facilitate the restriction of the position of the pre-pressing spring, the first opening extends from the first side surface of the first box body to the first circuit board, so that the pre-pressing spring can be prevented from deviating or inclining in the assembling process, and poor contact with the touch film is caused.

Generally, icons and characters are printed on a touch pad of a household appliance, or a color film capable of displaying the characters and the icons is attached to a touch film. In order to provide backlight for the indicative icons and characters, a light-transmitting area is arranged on the touch pad; the first box body is internally provided with a luminous body electrically connected with the first circuit board, the first side of the first box body is also provided with a second opening close to the first opening, and the second opening is used for light rays of the luminous body to penetrate out and corresponds to the position of the light-transmitting area.

The size of the light-transmitting area is not limited, and may be a partial area of the touch panel or the entire area of the touch panel. The touch panel may be at least partially a glass or plastic panel of transparent or translucent material. The luminous body can be an LED lamp, can also be a combined structure of the LED lamp and the light guide body, or a combined structure of the LED lamp and the lampshade.

In order to enable the electric connection points of the sensing module on the touch film to be aligned with the pre-pressing springs more easily, the reverse side of the touch film is bonded on the first side surface of the first box body, so that electric signal transmission is more reliable, moreover, the touch film is bonded on the first box body instead of the touch pad, due to the existence of the first opening and the second opening, the gluing area of the touch film can be reduced, the air exhaust of the touch film in the bonding process is facilitated, and bubbles are not easy to generate when the touch film is bonded.

In order to facilitate the installation of the first circuit board, the first box body is also provided with an opening opposite to the first side of the first box body, and the first circuit board is accommodated in the first box body through the opening.

When there are more touch areas on the touch film, a touch film with a larger size is required, and the size of the first box body is inevitably larger. At this moment, if directly carry out the encapsulating to the region between the reverse side of first circuit board and touch-control membrane, after sealed glue solidifies, the first box body of plastics material produces the shrink of different degrees because of the difference in encapsulating region and the regional not encapsulating, leads to first box body to warp greatly, makes the touch-control membrane be difficult to bond on the first box body of plastics.

In order to make the first box body difficult to deform after glue pouring, the first box body is internally provided with a first glue pouring area for accommodating a sealant, the first glue pouring area is positioned between an opening of the first box body and the first circuit board, and the whole glue pouring is carried out on one side of the first circuit board deviating from the touch control film in the first box body, so that the first box body is difficult to deform after glue pouring, and the touch control film is prevented from being bonded.

Similarly, in order to make the glue filling behind the first box body not easy to deform, the first box body have a plurality of, the inside of each first box body is equipped with supplies sealed glue holding in the second glue filling district therein, this second glue filling district is located the first side of first box body and between the first circuit board, replace the great touch-control membrane of single size through the less touch-control membrane of a plurality of sizes, and supply the touch-control membrane that corresponds to bond through the less first box body of a plurality of sizes, can make the difference of first box body glue filling region and not glue filling region after the glue filling great, be unlikely to cause the too big deformation of first box body to avoid influencing touch-control membrane bonding.

In order to assemble the first box body conveniently, the portable electronic device further comprises a second box body with a second circuit board arranged inside the second box body, one side of the second box body is opened and is opposite to the touch pad, each first box body is arranged on the surface, close to one side of the touch pad, of the second circuit board, and the first circuit board inside each first box body is electrically connected with the second circuit board through the opening.

In order to make the switch assembly better in sealing performance, the inner wall of the second box body, the outer side face of each first box body and the surface of the second circuit board jointly define a third glue filling area for accommodating the sealant, the third glue filling area is sealed by glue filling on the inner side of the first box body, and the third glue filling area is sealed by glue filling again in the area between the second box body and the first box body, so that the switch assembly is better in sealing performance.

When the area between the second box body and the first box body is sealed by glue pouring, the sealant can flow to one side of the second circuit board far away from the touch pad from one side of the second circuit board close to the touch pad for convenience. The inside wall of second box body is equipped with a plurality of protruding muscle along its circumference interval, and this protruding muscle looks sideways at and is L shape, the lateral margin of second circuit board with be in between the inside wall of second box body the region beyond the protruding muscle all has the gap, just the second circuit board is kept away from a side surface of touch pad with the protruding muscle offset.

Since the side of the touch pad adjacent to the first case is generally flat, in order to make the front surface of the touch pad contact with the touch pad better, the first side surface of each first case is flush with or protrudes from the open side of the second case.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: a door body of a household appliance is characterized in that: the switch assembly of the household appliance as described above is applied.

In order to reduce the size of the first box body, the touch pad structure comprises a shell with one open side, the touch pad covers the open side of the shell, the first box body is contained in the shell, so that the touch pad and the first box body are constrained together through the shell, the size design of the first box body can reduce the glue filling amount, the using amount of a sealing glue can be saved, and more importantly, the weight of a door body can be reduced.

In order to make the switch assembly have better sealing performance, a first groove and a second groove positioned on the periphery of the first groove are arranged in the shell, the opening part of the first groove and the opening part of the second groove face the open side of the shell, the first groove is used for accommodating the first box body, and the second groove is used for accommodating the sealant.

The utility model provides a technical scheme that above-mentioned third technical problem adopted does: the utility model provides a household appliance, includes the box, its characterized in that: the box body is provided with the door body of the household appliance.

Compared with the prior art, the utility model has the advantages of: the pre-compaction spring through electrically conductive material realizes that the signal between the last sensing module of touch-control membrane and the first circuit board switches on, thereby allow to carry out the encapsulating around the pre-compaction spring on the circuit board to switch module, can make switch module's leakproofness better, make steam be difficult to permeate to switch module inside and influence switch module's life, and, because pre-compaction spring can remain throughout and touch-control membrane contact, make the signal transmission between touch-control membrane and the first circuit board more stable, make switch module be difficult to appear the malfunctioning phenomenon of touch-control operation.

Drawings

Fig. 1 is a three-dimensional structure diagram of a door body of a household appliance in embodiment 1 of the present invention;

fig. 2 is a top view of a door body of a household appliance in embodiment 1 of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 3;

fig. 5 is a three-dimensional structure view of a door body of a household appliance in embodiment 1 of the present invention with a touch pad removed;

fig. 6 is an exploded perspective view of the switch assembly of the household appliance in embodiment 1 of the present invention with the touch pad removed;

fig. 7 is a three-dimensional structure view of a door body of a household appliance in embodiment 2 of the present invention;

fig. 8 is a top view of a door body of a household appliance in embodiment 2 of the present invention;

FIG. 9 is a cross-sectional view taken in the direction of C-C in FIG. 8;

FIG. 10 is an enlarged view taken at D in FIG. 9;

fig. 11 is a three-dimensional structure view of a door body of a household appliance in embodiment 2 of the present invention with a touch pad removed;

fig. 12 is an exploded perspective view of the switch assembly of the household appliance according to embodiment 2 of the present invention, with the touch pad removed.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1

As shown in fig. 1 to 6, it is a first preferred embodiment of the present invention.

As shown in fig. 1 to 6, the switch assembly 100 of the household appliance in the embodiment includes a first case 1, a first circuit board 2, a touch film 31, a color film 32, a touch panel 5, a pre-pressing spring 6, a light emitter 9, and other main components.

As shown in fig. 4, the first casing 1 is bound with the touch panel 5. The first box 1 has a first side 1a and an opening 16 opposite to the first side 1a, the first side 1a of the first box 1 is opposite to the touch pad 5, and a surface of the first side 1a is provided with a first opening 11 (see fig. 4 and 6), and the first circuit board 2 is accommodated in the first box 1 through the opening 16. The touch film 31 has a front surface 31a and a back surface 31b, the front surface 31a of the touch film 31 is in contact with the touch pad 5, and the back surface 31b of the touch film 31 is adhered to the surface of the first side 1a of the first box body 1, so that the adhesive area of the touch film 31 can be reduced, the air discharge of the touch film 31 in the adhering process is facilitated, and air bubbles are not easily generated when the touch film 31 is adhered. Prepressing spring 6 is made of conductive material, prepressing spring 6 is arranged on first circuit board 2, and the head of prepressing spring 6 is contacted with reverse side 31b of touch control film 31 after penetrating through first opening 11, so as to realize signal conduction between sensing module on touch control film 31 and first circuit board 2, thereby allowing glue filling around prepressing spring 6 on first circuit board 2 in switch assembly, thereby improving the sealing property of switch assembly, making water vapor not easy to permeate to the inside of switch assembly and influencing the service life of switch assembly, and because prepressing spring 6 can always keep contacting with touch control film 31, making the signal transmission between touch control film 31 and first circuit board 2 more stable, making the switch assembly not easy to cause touch control operation failure. The first opening 11 extends from the surface of the first side 1a of the first case 1 to the first circuit board 2, so that the position of the pre-pressing spring 6 can be restricted, and the pre-pressing spring 6 is prevented from deviating or skewing in the assembling process, thereby preventing poor contact with the touch film 31.

As shown in fig. 4, the color film 32 is adhered to the front surface 31a of the touch film 31, so that the touch film 31 is indirectly contacted with the touch panel 5 through the color film 32. The color film 32 has characters and patterns to prompt a user of different touch areas on the touch film 31. The touch panel 5 is a glass plate, and a partial area of the touch panel 5 is printed with semi-transparent ink, and an area on the periphery of the partial area is printed with black ink by screen printing, so that the area printed with the semi-transparent ink becomes a light-transmitting area 51 (see fig. 1 and 2), thereby facilitating display of characters and patterns on the color film 32. A light emitting body 9 (see fig. 6) electrically connected to the first circuit board 2 is disposed in the first box body 1, a second opening 12 (see fig. 6) close to the first opening 11 is further disposed on the surface of the first side 1a of the first box body 1, and the second opening 12 allows light of the light emitting body 9 to pass through and corresponds to the position of the light-transmitting area 51, so that the light emitting body 9 can provide backlight for characters and patterns on the color film 32. Wherein the light emitter 9 is an LED lamp.

In this embodiment, the number of the second openings 12 is multiple, the size of the touch film 31 is large, correspondingly, the size of the first box body 1 is also large (see fig. 6), at this time, if glue is directly filled into the area between the first circuit board 2 and the reverse surface 31b of the touch film 31, after the sealant is solidified, the first box body 1 made of plastic material shrinks in different degrees due to the difference between the glue filled area and the non-glue filled area, so that the first box body 1 deforms greatly, and the reverse surface 31b of the touch film 31 is difficult to adhere to the first box body 1 made of plastic. The inside of first box body 1 is equipped with the first encapsulating district 13 that supplies sealed glue holding wherein, and this first encapsulating district 13 is located between the uncovered 16 of first box body 1 and the first circuit board 2, through the whole face encapsulating of one side that first circuit board 2 deviates from touch-control membrane 31 in first box body 1, is difficult to take place to warp after can making the encapsulating of first box body 1 to avoid influencing touch-control membrane 31 and bond (see fig. 4).

The door body of the home appliance in the present embodiment includes a case 4 (see fig. 5) having one open side, and the touch panel 5 covers the open side of the case 4 (see fig. 3). The first box body 1 is accommodated inside the casing 4 (see fig. 5) and corresponds to the light-transmitting area 51, so that the touch pad 5 and the first box body 1 are constrained together through the casing 4, and the size design of the first box body 1 can reduce the glue filling amount, thereby not only saving the using amount of sealant, but also lightening the weight of a door body. The interior of the housing 4 is provided with a first groove 41 and a second groove 42 located at the periphery of the first groove 41, the mouth of the first groove 41 and the mouth of the second groove 42 both face the open side of the housing 4, the first groove 41 is used for accommodating the first box 1, and the second groove 42 is used for accommodating the sealant (see fig. 5).

The household appliance in the embodiment is a cleaning machine capable of cleaning tableware, vegetables or fruits. The household appliance comprises a cabinet (not shown) to which the door body of the household appliance is applied.

Example 2

Fig. 7 to 12 show a second preferred embodiment of the present invention.

This example differs from example 1 in that:

as shown in fig. 12, in the switch assembly 100 of the household appliance in the embodiment, there are three first box bodies 1, a second potting region 14 for accommodating the sealant is disposed inside each first box body 1, the second potting region 14 is located between the first side 1a of the first box body 1 and the first circuit board 2, so that a plurality of touch control films 31 with smaller sizes replace a single touch control film 31 with larger size, and a plurality of first box bodies 1 with smaller sizes are used for bonding the corresponding touch control films 31, so that the difference between the potting area and the non-potting area of the first box body 1 after potting is relatively large, which does not cause too large deformation of the first box body 1, thereby avoiding affecting the bonding of the touch control films 31.

The switch assembly 100 of the household appliance in this embodiment further includes a second case 7 having a second circuit board 8 disposed therein, one side of the second case 7 is open (see fig. 12) and is opposite to the touch pad 5, each first case 1 is disposed on a side surface of the second circuit board 8 close to the touch pad 31 (see fig. 10), and the first circuit board 2 in each first case 1 is electrically connected to the second circuit board 8 through a pin (not shown) passing through the opening 16 (see fig. 10).

The inner wall of the second box body 7, the outer side surface of each first box body 1 and the surface of the second circuit board 8 jointly define a third glue filling area 15 (see fig. 10 and 11) for accommodating sealant, glue filling sealing is carried out on the inner side of the first box body 1, glue filling sealing is carried out again on the area between the second box body 7 and the first box body 1, and the sealing performance of the switch assembly can be better. When carrying out the encapsulating to the region between second box body 7 and the first box body 1 and sealing up, for the convenience of sealed glue can be followed and is close to one side that the touch pad 5 flows to keeping away from one side of touch pad 5 on the second circuit board 8, the inside wall of second box body 7 is equipped with a plurality of protruding muscle 71 along its circumference interval, this protruding muscle 71 looks sideways at and is L shape (see fig. 12), the region outside protruding muscle 71 all has the gap between the lateral margin of second circuit board 8 and the inside wall of second box body 7, and a lateral surface and the protruding muscle 71 counterbalance of touch pad 5 are kept away from to second circuit board 8.

As shown in fig. 10, the surface of the first side 1a of each first container 1 is flush with the open side 7 of the second container 7, so that the front surface 31a of the touch film 31 is better contacted with the touch panel 5.

Example 3

This example differs from example 1 in that: the household appliance is a water heater.

Example 4

This example differs from example 1 in that: the household appliance is a washing machine.

Example 5

This example differs from example 1 in that: the household appliance is a floor washing machine.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Claims (15)

1. A switch assembly of a household appliance, comprising:

a touch panel (5);

a first casing (1) constrained to said touch pad (5) and having a first side (1 a) opposite to said touch pad (5);

the first circuit board (2) is accommodated in the first box body (1);

a touch film (31) having a front surface (31 a) and a back surface (31 b), the front surface (31 a) of the touch film (31) being in contact with the touch panel (5);

the method is characterized in that: the first side (1 a) of the first box body (1) is provided with a first opening (11) and further comprises a second opening

And the pre-pressing spring (6) made of conductive materials is arranged on the first circuit board (2), and the head of the pre-pressing spring penetrates out of the first opening (11) to be abutted against the reverse surface (31 b) of the touch control film (31).

2. The switching assembly of a household appliance according to claim 1, characterized in that: the first opening (11) extends from the surface of the first side (1 a) of the first box body (1) to the first circuit board (2).

3. The switching assembly of a household appliance according to claim 1 or 2, characterized in that: a light-transmitting area (51) is arranged on the touch pad (5); the light-emitting device is characterized in that a light-emitting body (9) electrically connected with the first circuit board (2) is arranged in the first box body (1), a second opening (12) close to the first opening (11) is further formed in the first side (1 a) of the first box body (1), and light rays of the light-emitting body (9) penetrate out of the second opening (12) and correspond to the light-transmitting area (51).

4. A switching assembly of a household appliance according to claim 3, characterized in that: the reverse surface (31 b) of the touch film (31) is adhered to the surface of the first side (1 a) of the first box body (1).

5. Switch assembly of a household appliance according to claim 4, characterized in that: the first box body (1) is also provided with an opening (16) opposite to the first side (1 a), and the first circuit board (2) is accommodated in the first box body (1) through the opening (16).

6. The switch assembly of a household appliance according to claim 5, characterized in that: the first glue filling area (13) for containing the sealant is arranged in the first box body (1), and the first glue filling area (13) is located between the opening (16) of the first box body (1) and the first circuit board (2).

7. The switch assembly of a household appliance according to claim 5, characterized in that: the first box body (1) is provided with a plurality of first glue filling areas (14) for containing the sealant in the first box body (1), and the second glue filling areas (14) are located between the first side (1 a) of the first box body (1) and the first circuit board (2).

8. The switching assembly of a household appliance according to claim 7, characterized in that: still include its inside second box body (7) that is equipped with second circuit board (8), one side of this second box body (7) is opened, and with touch pad (5) relative, each first box body (1) is all located be close to on second circuit board (8) one side surface of touch pad (5), first circuit board (2) of each first box body (1) inside all warp uncovered (16) with second circuit board (8) electricity be connected.

9. The switching assembly of a household appliance according to claim 8, characterized in that: and a third glue filling area (15) for accommodating the sealant is defined by the inner wall of the second box body (7), the outer side surface of each first box body (1) and the surface of the second circuit board (8) together.

10. The switching assembly of a household appliance according to claim 9, characterized in that: the inside wall of second box body (7) is equipped with a plurality of protruding muscle (71) along its circumference interval, and this protruding muscle (71) looks sideways at and is L shape, the lateral margin of second circuit board (8) with between the inside wall of second box body (7) the region beyond protruding muscle (71) all has the gap, just second circuit board (8) are kept away from a side surface of touch pad (5) with protruding muscle (71) offset.

11. The switching assembly of a household appliance according to claim 8, characterized in that: the surface of the first side (1 a) of each first box body (1) is flush with the open side of the second box body (7) or is convexly arranged on the open side of the second box body (7).

12. A door body of household appliances is characterized in that: switch assembly (100) for a household appliance applying any one of claims 1 to 11.

13. The door body of a home appliance according to claim 12, wherein: the touch pad comprises a shell (4) with one open side, wherein the touch pad (5) covers the open side of the shell (4), and the first box body (1) is accommodated in the shell (4).

14. The door body of a home appliance according to claim 13, wherein: the inner part of the shell (4) is provided with a first groove (41) and a second groove (42) which is positioned at the periphery of the first groove (41), the opening part of the first groove (41) and the opening part of the second groove (42) face the open side of the shell, the first groove (41) is used for accommodating the first box body (1), and the second groove (42) is used for accommodating a sealant.

15. The utility model provides a household appliance, includes the box, its characterized in that: the door body of the household appliance is arranged on the box body according to any one of claims 1 to 14.

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