Press switch for vehicle

Abstract

A kind of press switch for vehicle, it is characterized by including shell, button, contact patch seat, static contact piece, gear, contact bridge and reset piece, shell has built-in cavity and is formed with installation port on side surface;Button, can be moved up and down and is arranged on the built-in cavity of aforementioned shell and upper end is formed with press part and extends out shell, the side of this button close to shell installation port is equipped with yoke;Contact bridge is arranged on one side of aforementioned gear and can rotate with gear, and this contact bridge is connected with aforementioned static contact piece and realizes function circuit output by on-off cooperation.Button is pressed and drives yoke to move down, yoke acts on the gear teeth of gear and drives gear to rotate, in turn drives contact bridge to rotate relative to static contact piece.The overall structure layout is reasonable, and the structure appears relatively compact;Contact bridge rotation can easily realize the control of circuit, and accurate control can be realized;The movement and drive of button are completed by two parts respectively, which is conducive to improving operation stability and reliability.

Description

TECHNICAL FIELD

[0001] The present application relates to a switch, in particular to a push switch of a vehicle, which can be applied to control of a sunroof. BACKGROUND

[0002] With the development of the automobile industry, the functions of the automobile are more and more, in order to meet the needs of human-computer interaction, various kinds of electric appliance switch structures in the vehicle, that is, it is required to be convenient to operate and at the same time, in the range of human activity. With the increase of the functions of the electric appliances in the vehicle, the number of switches in the vehicle is also increased, and the range of arranging the switches is limited, which causes the problem of insufficient space in the vehicle.

[0003] The existing vehicle sunroof control switch is mostly in the form of dialing or pressing, such as the Chinese utility model patent "Automobile Sunroof Switch" (authorized publication number CN206991992U) with the patent number ZL201720690263.9; reference can also be made to the Chinese utility model patent "Five-gear sunroof control switch based on dialing lever" (authorized publication number CN209357655U) with the patent number ZL201822172069.9. There are also structures with both dialing and pressing, such as the Chinese utility model patent "Automobile Sunroof Switch" (CN205863063U) with the patent number 201720244086.1.

[0004] The existing sunroof control switches are various in types, each having advantages. However, there are not many switches with small and compact size and stable operation. SUMMARY

[0005] The first technical problem to be solved by the present application is to provide a vehicle push switch in view of the above technical status.

[0006] The second technical problem to be solved by the present application is to provide a vehicle push switch with small and compact size and stable operation.

[0007] The technical scheme adopted by the present application to solve the above technical problems is as follows: a vehicle push switch, characterized in that it comprises

[0008] a shell having an inner cavity and a mounting port formed on the side surface;

[0009] a button movably arranged on the inner cavity of the shell and having a pressing part extending out of the shell at the upper end, the button being provided with a fork on the side close to the mounting port of the shell;

[0010] a contact piece seat arranged on the mounting port of the shell and forming an adjusting cavity with the shell;

[0011] a static contact piece arranged on the contact piece seat;

[0012] Gear, rotatably arranged in the adjusting cavity;

[0013] Contact bridge, arranged on one side of the gear and rotatable with the gear, and in contact with the static contact piece to realize the output of the functional circuit;

[0014] Resetting member, arranged in the shell and always urging the button to move upward;

[0015] When the button is pressed, the yoke is driven to move downward, and the yoke drives the gear to rotate by acting on the gear teeth, and then drives the contact bridge to rotate relative to the static contact piece.

[0016] To realize gear control, a disc-shaped gear part is formed on one side of the gear, and the gear part has a gear slot on the outer periphery, and correspondingly, a gear pin or a gear ball is elastically arranged in the shell to cooperate with the gear slot to realize gear control.

[0017] When the gear ball and the gear rub, they do not rub at the same position every time, but follow a circular motion (pressing the same place 12 times coincides with 1 time), which avoids the functional failure caused by long-time rubbing at the same position of the ordinary switch, long-time rubbing causing part wear. Such gear design has high repeatability and higher operation stability than ordinary key switches. Further, the gear pin or the gear ball is arranged in the shell by a gear spring.

[0018] As a preferred embodiment, the contact bridge comprises a support part and three spaced-apart moving contacts formed on the outer peripheral edge of the support part; the static contact piece comprises a first static contact piece, a second static contact piece and a third static contact piece, the first static contact piece has a first contact part, the second static contact piece has a second contact part, and the third static contact piece has a third contact part, and the first contact part, the second contact part and the third contact part are arranged in a ring shape. The three moving contacts and the first contact part, the second contact part and the third contact part cooperate to complete the output of the functional circuit.

[0019] The inner side of the contact seat has a groove, the first contact part, the second contact part and the third contact part are located at the bottom of the groove, and the contact bridge is arranged in the groove. The groove can ensure that the contact bridge and the static contact piece always interact in a relatively closed area, the position of the parts is not easy to deviate, and the entry of impurities and dust can also reduce the contact between the contact bridge and the static contact piece.

[0020] The button extends laterally outward to form a bottom plate, and the yoke is curved to form a side of the bottom plate and has elasticity. The elastic design of the yoke can make the yoke avoid the gear teeth when resetting to smoothly reset.

[0021] Further, a gap is formed between the shift fork and the button, and a guide plate corresponding to the gap is arranged on the shell, which divides the internal cavity of the shell into a first area and a second area, the first area is used for arranging the button, and the second area is used for arranging the shift fork.

[0022] Further, the contact seat is provided with a positioning hole and a first protrusion on the outer side, the shell is provided with a second protrusion on the side opposite to the mounting port, the mounting port of the shell is provided with a positioning column which is positioned and matched with the positioning hole, and the contact seat is provided with a positioning hole which is positioned and matched with the positioning column, the vehicle press switch further comprises a cover plate, the cover plate comprises a body part arranged on the port of the shell and a first connecting part and a second connecting part which are bent downward from the two ends of the body part, the middle part of the body part is provided with a through hole for the head part of the press part to extend out, the first connecting part is provided with a first clamping hole which is clamped and matched with the first protrusion, and the second connecting part is provided with a second clamping hole which is clamped and matched with the second protrusion. The cover plate encapsulates the button, the contact seat and the shell as a whole, and no screw is needed, so that the button is firmly arranged and is not easy to be separated, and the assembly is fast, which is beneficial to improving the work efficiency.

[0023] Further, in order to improve the connection strength, the body part is provided with a bent clamping part on the side adjacent to the first connecting part, and the clamping part is clamped on the port of the shell.

[0024] The button is provided with a stepped part on the outer periphery of the lower end of the press part, and the stepped part is arranged below the body part to limit the button from being separated from the shell. In this way, the button is positioned by the cover plate.

[0025] Compared with the prior art, the advantages of the vehicle press switch are as follows: the button is driven to move downward after being pressed, the shift fork acts on the gear teeth of the gear to drive the gear to rotate, and then the contact bridge is driven to rotate relative to the static contact piece to complete the output of the functional circuit. The up-down movement of the button is converted into the one-way rotation of the gear, the control of the circuit is completed, the overall structure layout is reasonable, the space does not need to be too long, and the structure is relatively compact; the rotation of the contact bridge can easily realize the control of the circuit, and the precise control can be realized; the movement and driving of the button are completed by two parts respectively, which is beneficial to improving the operation stability and reliability. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an embodiment.

[0027] Figure 2 It is an exploded view of an embodiment.

[0028] Figure 3 It is an enlarged view of an embodiment in which the contact seat and the cover plate are removed.

[0029] Figure 4A zoomed-in view of the combination of the contact seat and the stationary contact in the embodiment.

[0030] Figure 5 A zoomed-in cross-sectional view of the embodiment.

[0031] Figure 6 A schematic view of the cooperation between the contact bridge and the stationary contact in the initial state.

[0032] Figure 7 A schematic view of the cooperation between the contact bridge and the stationary contact after the gear is rotated by one gear position.

[0033] Figure 8 A schematic view of the cooperation between the contact bridge and the stationary contact after the gear is continuously rotated by one gear position. DETAILED DESCRIPTION

[0034] The application will be further described in detail below with reference to the accompanying drawings.

[0035] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 5 , the vehicle press switch in the embodiment comprises a housing 1, a button 4, a contact seat 2, stationary contacts, a gear 7, a contact bridge 8, a reset member 6 and a cover plate 5.

[0036] The housing 1 has an inner cavity and a mounting port formed on the side surface; the housing 1 has a guide plate 13, which divides the inner cavity of the housing 1 into a first area and a second area, the first area is used for arranging the button 4, and the second area is used for arranging a fork 42.

[0037] The button 4 is movably arranged in the inner cavity of the housing 1 and extends out of the housing 1 to form a pressing portion 411 at the upper end, and the button 4 is provided with the fork 42 on the side close to the mounting port of the housing 1; specifically, the button 4 extends laterally outward to form a bottom plate 44, and the fork 42 is curved on one side of the bottom plate 44 to have elasticity. A gap is formed between the fork 42 and the button 4, which can be guided and matched with the guide plate 13.

[0038] The contact seat 2 is arranged on the mounting port of the housing 1 and forms an adjusting cavity with the housing 1; as shown in Figure 4 , the inner side of the contact seat 2 has a groove 23.

[0039] The stationary contacts are arranged on the contact seat 2, and the stationary contacts comprise a first stationary contact 31, a second stationary contact 32 and a third stationary contact 33, the first stationary contact 31 has a first contact portion 311, the second stationary contact 32 has a second contact portion 321, and the third stationary contact 33 has a third contact portion 331, and the first contact portion 311, the second contact portion 321 and the third contact portion 331 are arranged in a ring shape. As shown in Figure 4As shown, the first contact portion 311, the second contact portion 321 and the third contact portion 331 are all located at the bottom of the groove 23.

[0040] The gear 7 is rotatably arranged in the adjusting cavity; one side of the gear 7 is formed with a disc-shaped gear portion 71, the gear portion 71 has a gear groove 72 at the outer periphery, and correspondingly, the shell 1 is elastically provided with a gear ball 92 for gear control by cooperating with the gear groove 72.

[0041] The contact bridge 8 is arranged at one side of the gear portion 7 of the gear 7 and can rotate with the gear 7, and the contact bridge 8 realizes the function circuit output by cooperating with the static contact piece; specifically, the gear portion 71 is provided with a positioning pin 73 at one side, and the contact bridge 8 is provided with a shaft pin hole 82 for the positioning pin 73 at the corresponding position. The contact bridge 8 includes a support portion 83 and three spaced-apart moving contacts 81 formed at the outer peripheral edge of the support portion 83. The shaft pin hole 82 is formed on the support portion 83. The contact bridge 8 is arranged in the groove 23. The three moving contacts are cooperated with the first contact portion 311, the second contact portion 321 and the third contact portion 331 to complete the function circuit output.

[0042] The reset member 6 is arranged in the shell 1 and always forces the button 4 to keep the upward moving trend, and the reset member 6 in the embodiment is a spring, and the spring is specifically arranged on the protruding column 14 in the shell.

[0043] The assembly structure of the shell 1, the contact piece seat 2 and the cover plate 5 is as follows: the contact piece seat 2 has a positioning hole 21 on the outer side and has a first protruding block 22, the shell 1 has a second protruding block 16 on the side opposite to the mounting port, the mounting port of the shell 1 has a positioning column 15 for positioning cooperation with the positioning hole 21, correspondingly, the contact piece seat 2 has a positioning hole 21 for positioning cooperation with the positioning column 15, the cover plate 5 has a body portion 51 arranged on the port of the shell 1 and a first connecting portion 53 and a second connecting portion 52 formed by bending downward from both ends of the body portion 51, the body portion 51 has a bent clamping portion 54 on the side adjacent to the first connecting portion 53, the body portion 51 has a through hole 511 in the middle for the head portion of the pressing portion 411 to extend out, the first connecting portion 53 has a first clamping hole 531 for clamping cooperation with the first protruding block 22, and the second connecting portion 52 has a second clamping hole 521 for clamping cooperation with the second protruding block 16. The clamping portion 54 is clamped on the port of the shell 1. The lower end of the button 4 has a stepped portion 412 formed on the outer periphery of the pressing portion 411, and the stepped portion 412 is located below the body portion 51 to limit the button 4 from being separated from the shell 1.

[0044] In assembly, the contact seat 2 is positioned on the mounting port of the shell 1 through the positioning column 15 and the positioning hole 21, then the cover plate 5 is arranged on the shell 1, the first connecting part 53 is connected and clamped with the first protrusion 22, the second connecting part 52 is connected and clamped with the second protrusion 16, meanwhile, the two buckling parts 54 are clamped on the shell 1, the pressing part 4111 of the button 4 is just stretched out of the through hole 511, and the assembly is completed.

[0045] As shown in Figure 6 the initial state, the first static contact 31 and the second static contact 32 are in contact and conduction through the moving contact 81; as shown in Figure 7 after the button 4 is pressed, the gear 7 rotates one gear, at this time, the second static contact 32 and the third static contact 33 are in contact and conduction through the moving contact 81; as shown in Figure 8 after the button 4 is continuously pressed, the gear 7 continuously rotates to the next gear, at this time, the first static contact 31 and the second static contact 32 are in contact and conduction through the moving contact 81. Such reciprocation.

[0046] After the button is pressed, the pawl is driven to move downward, the pawl acts on the gear teeth of the gear to drive the gear to rotate, and then drives the contact bridge to rotate relative to the static contact to complete the output of the functional circuit. The up and down movement of the button is converted into the one-way rotation of the gear, the control of the circuit on-off is completed, the overall structure layout is reasonable, the space does not need to be very long, and the structure is relatively compact; the rotation of the contact bridge can easily realize the control of the circuit, and accurate control can be realized; the movement and driving of the button are completed by two parts respectively, which is beneficial to improve the operation stability and reliability. The overall installation is simple, the cost performance is high, the versatility is strong, the switch volume is small, the space is saved, and the independent button structure is convenient to install, the structure of the vehicle-mounted function button is simplified, and the switch is suitable for various function switches of the ceiling lamp, and has high matching property and is suitable for various vehicle models.

Claims

1. A push switch for a vehicle, characterized by Comprising a shell (1) having an inner cavity and a mounting port formed on a side surface thereof; a button (4) movably arranged in the inner cavity of the shell (1) and having a pressing portion (411) extending out of the shell (1) at an upper end thereof, the button (4) being provided with a yoke (42) on a side thereof close to the mounting port of the shell (1); a contact seat (2) arranged on the mounting port of the shell (1) and having an adjusting cavity formed between the contact seat (2) and the shell (1); a static contact provided on the contact seat (2); a gear (7) rotatably arranged in the adjusting cavity; a contact bridge (8) arranged on a side of the gear (7) and rotatable with the gear (7), the contact bridge (8) being in on-off cooperation with the static contact to realize output of a functional circuit; and a reset member (6) arranged in the shell (1) and always urging the button (4) to move upward; when the button (4) is pressed, the yoke (42) is driven to move downward, the yoke (42) acts on the gear teeth of the gear (7) to drive the gear (7) to rotate, and the contact bridge (8) is further driven to rotate relative to the static contact; a disc-shaped gear portion (71) is formed on a side of the gear (7), the gear portion (71) has a gear slot (72) on an outer periphery thereof, and a gear pin or a gear ball (92) is elastically arranged in the shell (1) to cooperate with the gear slot (72) to realize gear control; the button (4) is provided with a bottom plate (44) extending laterally and outwardly, and the yoke (42) is elastically formed on a side of the bottom plate (44); a gap is formed between the yoke (42) and the button (4), and a guide plate (13) is arranged on the shell (1) to guide the gap, the guide plate (13) divides the inner cavity of the shell (1) into a first area and a second area, the first area is used for arranging the button (4), and the second area is used for arranging the yoke (42).

2. The push switch for vehicle use according to claim 1, characterized by The gear pin or the gear ball (92) is arranged in the shell (1) by a gear spring (91).

3. The automotive push switch according to claim 1, characterized by The contact bridge (8) comprises a support portion (83) and three spaced-apart moving contacts (81) formed on an outer peripheral edge of the support portion (83); The static contact comprises a first static contact (31), a second static contact (32) and a third static contact (33), the first static contact (31) has a first contact portion (311), the second static contact (32) has a second contact portion (321), and the third static contact (33) has a third contact portion (331), the first contact portion (311), the second contact portion (321) and the third contact portion (331) are arranged in a ring shape, and the three moving contacts are in on-off cooperation with the first contact portion (311), the second contact portion (321) and the third contact portion (331) to complete the output of the functional circuit.

4. The push switch for vehicle use according to claim 3, characterized in that An inner side surface of the contact seat (2) has a groove (23), the first contact portion (311), the second contact portion (321) and the third contact portion (331) are located at a bottom of the groove (23), and the contact bridge (8) is arranged in the groove (23).

5. The automotive push switch according to claim 1, characterized by The contact seat (2) has a positioning hole (21) and a first protrusion (22) on the outer side. The shell (1) has a second protrusion (16) on the side opposite to the mounting port. The mounting port of the shell (1) has a positioning column (15) which is positioned and matched with the positioning hole (21). Correspondingly, the contact seat (2) has a positioning hole (21) which is positioned and matched with the positioning column (15). The car press switch further comprises a cover plate (5) which has a body part (51) placed on the port of the shell (1), a first connecting part (53) and a second connecting part (52) which are bent downward from both ends of the body part (51). The middle part of the body part (51) has a through hole (511) for the head of the pressing part (411) to extend out. The first connecting part (53) has a first clamping hole (531) which is clamped and matched with the first protrusion (22). The second connecting part (52) has a second clamping hole (521) which is clamped and matched with the second protrusion (16).

6. The automotive push switch according to claim 5, characterized by The body part (51) has a bent clamping part (54) on the side adjacent to the first connecting part (53). The clamping part (54) is clamped on the port of the shell (1).

7. The automotive push switch according to claim 5, characterized by The button (4) has a stepped part (412) formed on the outer periphery of the lower end of the pressing part (411). The stepped part (412) is located below the body part (51) to limit the button (4) from being separated from the shell (1).

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