CN218301372U

CN218301372U - Touch switch assembly of household appliance, door body of household appliance and household appliance

Info

Publication number: CN218301372U
Application number: CN202222001463.2U
Authority: CN
Inventors: 孔祥奎; 黄兆钱; 朱灯光; 徐慧
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-01-13
Anticipated expiration: 2032-07-29

Abstract

The utility model relates to a domestic appliance's touch switch subassembly, include: the first side of the box body is provided with an opening; the circuit board is accommodated in the box body through the opening; the touch pad covers the opening of the box body; the method is characterized in that: the circuit board is provided with a sensing module and a conductive piece, the conductive piece is arranged on the circuit board and is electrically connected with the sensing module, and the conductive piece is also contacted with the inner surface of the touch pad, so that the sealing performance of the touch switch assembly of the household appliance is better. The utility model discloses still relate to an applied domestic appliance's that has aforementioned touch switch subassembly the door body to and the domestic appliance who has aforementioned door body is used.

Description

Touch 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 touch switch subassembly, still relate to an applied domestic appliance's that has aforementioned touch switch subassembly 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 pins and slots on the wires. 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 discloses the first technical problem that will solve provides a better domestic appliance's of leakproofness touch switch subassembly to foretell technical current situation.

The second technical problem to be solved in the present invention is to provide a door body of a household electrical appliance with the touch switch assembly of the household electrical appliance.

The third technical problem to be solved in the present invention is to provide a household appliance with the door body according to the above mentioned current technical situation.

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

the first side of the box body is provided with an opening;

the circuit board is accommodated in the box body through the opening;

the touch pad covers the opening of the box body;

the method is characterized in that: the circuit board is provided with a sensing module and also comprises

And the conductive piece is arranged on the circuit board and electrically connected with the sensing module, and the conductive piece is also contacted with the inner surface of the touch pad. In order to enable the conductive piece to always keep good contact with the inner surface of the touch pad, the conductive piece is a pre-pressing spring made of a conductive material, so that signal transmission is more sensitive.

In order to limit the position of the pre-pressing spring, a cylinder is further arranged on the circuit board, and the conductive piece is sleeved on the cylinder so that the pre-pressing spring can be aligned to a specific area on the touch panel.

In order to display characters and symbols on the touch panel, the touch panel is a glass plate, the cylinder is hollow and can transmit light, and the circuit board is further provided with a lamp body accommodated in the cylinder and a controller connected with the sensing module and the lamp body. By "transparent" it is meant that the posts may be transparent or translucent.

Similarly, in order to display characters and symbols on the touch panel, the touch panel is a glass plate; the cylinder be the light conductor, and the circuit board on be equipped with near the lamp body of cylinder and connect the sensor module with the controller of lamp body. The setting of light guide body can promote the directive property of light, makes light can assemble in with the specific area on the touch pad.

The sensing module may be a resistive sensing module, but in order to improve the sensitivity of the sensing module, the sensing module is a capacitive sensing module. The specific structure of the capacitive sensing module can refer to the prior art.

In order to facilitate gluing fixation between the touch pad and the box body, a first groove with an opening facing the touch pad is formed in the first side of the box body, and the first groove is filled with sealant and surrounds the opening.

In order to solve the problem of glue overflow, a second groove with an opening facing the touch pad is further formed in the first side of the box body, and the second groove is communicated with the first groove. The second groove is used for accommodating the sealant overflowing from the first groove, so that the gap between the box body and the touch pad is too large in the first groove due to the fact that a large amount of sealant is stored, the assembly of the touch pad on the door body is prevented from being influenced, the contact area of the sealant and the touch pad can be increased, the bonding between the touch pad and the box body is firmer, and the sealing performance of the switch assembly is better.

The first groove and the second groove can be communicated through a communication channel, however, in order to enable the second groove to more uniformly contain the glue overflowing from the first groove, the second groove extends along the circumferential direction of the first side of the box body and is adjacent to the first groove, so that the first groove and the second groove have a common first side wall, the first groove also has a second side wall opposite to the first side wall, the second groove also has a third side wall opposite to the first side wall, and the second side wall and the third side wall are both convexly arranged on the first side wall. The length of the second groove which can extend in the circumferential direction can be set according to the actual situation, and the second groove can be a whole circle or a half circle; the number of the second grooves can also be set according to the actual situation, and the second grooves can be a plurality of strip-shaped second grooves which are arranged at intervals.

In order to prevent the colloid from overflowing to the inner area of the box body, the first groove is positioned at the periphery of the second groove.

In order to facilitate the reservation of a gap between the wall surfaces opposite to the opening on the circuit board and the box body, a plurality of convex ribs are arranged on the inner side wall of the box body along the circumferential interval of the inner side wall, the convex ribs are in an L shape in side view, the circuit board is placed on the convex ribs, not only can be used for accommodating elements on the circuit board, but also is convenient for being filled with sealant and also contributes to heat dissipation of the circuit board.

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

In order to save the glue filling amount, the door comprises a shell with one open side, a display area is arranged on the touch pad, the box body is contained in the shell and corresponds to the display area, and the touch pad covers the open side of the shell, so that the weight of the door body can be reduced.

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 door body of the household appliance is applied to the box body.

Compared with the prior art, the utility model has the advantages of: through set up sensing module on the circuit board and through the signal conduction between the surface that electrically conductive piece realized the touch pad and the sensing module, thereby allow to carry out the encapsulating around electrically conductive piece 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.

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 an exploded perspective view of a door body of a household appliance in embodiment 1 of the present invention;

fig. 6 is a three-dimensional structure view of the cartridge in embodiment 1 of the present invention.

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. 5, the touch switch assembly 100 of the household appliance in this embodiment includes a case 1, a circuit board 2, a touch panel 3, a conductive member 4, a cylinder 5, a housing 6, a semipermeable membrane 7, a color membrane 8, and other major components.

The upper side of the case 1 is provided with an opening 11 (see fig. 6), and the circuit board 2 is received in the interior of the case 1 through the opening 11 (see fig. 3). Specifically, the inside wall of this box body 1 is equipped with a plurality of protruding muscle 14 (see fig. 6) along its circumference interval, and this protruding muscle 14 looks sideways at and is the L shape, and circuit board 2 shelves on protruding muscle 14 to be convenient for reserve the clearance (see fig. 4) between the wall relative with opening 11 on circuit board 2 and box body 1, this clearance not only can supply the component holding on the circuit board 2, still is convenient for fill sealed glue, also helps circuit board 2 heat dissipation.

The touch panel 2 is a glass plate and covers the opening 11 of the case 1 (see fig. 3). The circuit board 2 is provided with a sensing module (not shown in the figure), a lamp body (not shown in the figure) and a controller (not shown in the figure) for connecting the sensing module and the lamp body, and the sensing module is a capacitive sensing module. The column 5 is hollow and transparent, the column 5 is disposed on the circuit board 2, and a lamp (not shown) is accommodated in the column 5. The conductive piece 4 is arranged on the circuit board 2 and is a pre-pressing spring made of a conductive material, so that the conductive piece 4 always keeps good contact with the inner surface of the touch panel 2, and signal transmission is more sensitive. Conductive piece 4 cover is located on cylinder 5, and the one end and the sensing module of conductive piece 4 are connected, the other end of conductive piece 4 offsets with the internal surface of touch pad 3 (see fig. 4), thereby make conductive piece 4 transmit the capacitance difference that touch pad 3 formed when being touched to sensing module, realize the signal of telecommunication intercommunication between the surface of touch pad 3 and the sensing module, thereby allow to carry out the encapsulating around conductive piece 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. The touch panel 3 is provided with a display area 31, and the box body 1 is accommodated in the shell 6 and corresponds to the display area 31, so that the glue filling amount can be saved, and the weight of the door body can be reduced. The inner surface of the touch pad 3 is adhered with a semipermeable membrane 7 corresponding to the display area 31, and black ink is silk-screened in the area except the display area 31; a color film 8 (see fig. 5) is attached to the inner surface of the semipermeable membrane 7, so that characters and symbols can be displayed on the touch panel 3.

The first groove 12 is opened at the upper side of the case body 1 and surrounds the opening 11, and the mouth of the first groove 12 faces the touch pad 3 (see fig. 6), and the first groove 12 is filled with sealant, so that the touch pad 3 and the case body 1 can be fixed by gluing conveniently. The upside of box body 1 and be linked together with first recess 12 are also seted up to second recess 13, and the oral area of second recess 13 is towards touch pad 3 (see fig. 4), make second recess 13 can hold the sealed glue that spills over from first recess 12, can avoid a large amount of sealed glue to exist and cause the clearance between box body 1 and the touch pad 3 too big in first recess 12, thereby avoid influencing the assembly of touch pad 3 on household electrical appliances's the door body, also can increase sealed area of contact with touch pad 3, it is more firm to make bonding between touch pad 3 and the box body 1, thereby make switch module's leakproofness better. The second groove 13 extends along the circumferential direction of one side of the box body 1 and is adjacent to the first groove 12, the first groove 12 and the second groove 13 have a common first sidewall 101, the first groove 12 further has a second sidewall 102 opposite to the first sidewall 101, the second groove 13 further has a third sidewall 103 opposite to the first sidewall 101, and both the second sidewall 102 and the third sidewall 103 are protruded on the first sidewall 101 (see fig. 4), so that the second groove 13 can uniformly accommodate the glue overflowing from the first groove 12. The first groove 12 is located at the periphery of the second groove 13, so that the colloid can be prevented from overflowing to the inner area of the box body 1.

The door body of the household appliance in this embodiment includes a housing 6 having one side opened, and the touch switch assembly 100 of the household appliance is applied to the housing 6. Specifically, the cartridge 1 is accommodated in the case 6, and the touch pad 3 is covered on the open side of the case 6.

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 in the figure), and the door body of the household appliance is applied to the cabinet (not shown in the figure).

Example 2

This example differs from example 1 in that: the column 5 is a light guide body, and the lamp body is arranged close to the column 5. The setting of light guide body can promote the directive property of light, makes light can assemble in with the specific area on the touch pad 2.

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

1. A touch switch assembly of a home appliance, comprising:

the box body (1) is provided with an opening (11) at the first side;

the circuit board (2) is accommodated in the box body (1) through the opening (11);

the touch pad (3) is covered at the opening (11) of the box body (1);

the method is characterized in that: the circuit board (2) is provided with a sensing module and also comprises

And the conductive piece (4) is arranged on the circuit board (2) and is electrically connected with the sensing module, and the conductive piece is also contacted with the inner surface of the touch panel (3).

2. Touch switch assembly of a household appliance according to claim 1, characterized in that: the conductive piece (4) is a pre-pressing spring made of a conductive material.

3. Touch switch assembly of a household appliance according to claim 2, characterized in that: the circuit board (2) is also provided with a column body (5), and the column body (5) is sleeved with the conductive piece (4).

4. Touch switch assembly of a household appliance according to claim 3, characterized in that: the touch pad (3) is a glass plate, the cylinder (5) is hollow and can transmit light, and the circuit board (2) is further provided with a lamp body accommodated in the cylinder (5) and a controller connected with the sensing module and the lamp body.

5. The touch switch assembly of the electric home appliance of claim 3, wherein: the touch panel (3) is a glass plate; the column (5) is a light guide body, and the circuit board (2) is provided with a lamp body close to the column (5) and a controller for connecting the sensing module and the lamp body.

6. Touch switch assembly of a household appliance according to claim 1, characterized in that: the sensing module is a capacitive sensing module.

7. Touch switch assembly of a household appliance according to claim 1, characterized in that: the first side of the box body (1) is provided with a first groove (12) with an opening facing the touch pad (3), and the first groove (12) is filled with sealant and surrounds the opening (11).

8. Touch switch assembly of a household appliance according to claim 7, characterized in that: the first side of the box body (1) is also provided with a second groove (13) the opening part of which faces the touch pad (3), and the second groove (13) is communicated with the first groove (12).

9. The touch switch assembly of a home appliance of claim 8, wherein: the second groove (13) extends along the circumferential direction of the first side of the box body (1) and is adjacent to the first groove (12), so that the first groove (12) and the second groove (13) have a common first side wall (101), the first groove (12) further has a second side wall (102) opposite to the first side wall (101), the second groove (13) further has a third side wall (103) opposite to the first side wall (101), and the second side wall (102) and the third side wall (103) are both convexly arranged on the first side wall (101).

10. The touch switch assembly of a home appliance of claim 8, wherein: the first groove (12) is positioned at the periphery of the second groove (13).

11. The touch switch assembly of a home appliance according to any one of claims 1 to 10, wherein: the inner side wall of the box body (1) is provided with a plurality of ribs (14) at intervals along the circumferential direction, the ribs (14) are L-shaped in side view, and the circuit board (2) is placed on the ribs (14).

12. A door body of a household appliance is characterized in that: touch switch assembly for a household appliance applying the method according to 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 (6) with one open side, a display area (31) is arranged on the touch pad (3), the box body (1) is contained in the shell (6) and corresponds to the display area (31), and the touch pad (3) is covered on the open side of the shell (6).

14. The utility model provides a household appliance, includes the box, its characterized in that: the door body of the household appliance according to claim 12 or 13 is applied to the box body.