Waterproof touch switch

Abstract

The utility model provides a waterproof light touch switch, which comprises a shell, a button, a movable contact piece and a static contact piece are arranged in the shell, the waterproof light touch switch also comprises a conducting strip, an action block and an insulating diaphragm, the movable contact piece comprises a contact part and a connecting part, the contact part can elastically swing to abut against the static contact piece to form electric connection, and the connecting part can elastically swing to abut against the static contact piece to form electric connection. The connecting part is used for covering one end of the conducting strip, the other end of the conducting strip extends out of the shell, the insulating diaphragm covers the connecting part of the movable contact piece, and the action block is arranged between the button and the contact part of the movable contact piece in a guiding and sliding manner. Aiming at the defects in the prior art, the utility model provides the waterproof touch switch which is small in size and strong in stability.

Description

Technical Field

[0001] The utility model relates to the field of tactile switches, in particular to a waterproof tactile switch. Background Art

[0002] A tactile switch is an electronic switch. The tactile switch has advantages such as small contact resistance, precise operating force error, and diverse specifications. The tactile switch usually includes a button, a shrapnel, a moving contact piece, and a static contact piece. When the finger gently presses the button, the shrapnel deforms, driving the moving contact piece to generate a deformation displacement and then contact with the static contact piece, so that the circuit is turned on to realize the transmission of signals or the connection of electrical equipment. When the finger releases the button, the shrapnel returns to its original state, and the moving contact piece also resets, and the circuit is disconnected. The tactile switch is commonly used in the field of automotive electronics. In this field, electronic devices often face complex and harsh working environments, and it is necessary to ensure the stability of the product and avoid some potential safety hazards, such as the problem of electric leakage. And with the development of automotive electronic technology and the increase of in-vehicle functions, the space of each functional component is limited, and there are also high requirements for the volume and stability of the tactile switch. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a waterproof tactile switch with a small volume and strong stability.

[0004] To achieve the above object, the utility model provides a waterproof tactile switch, which includes a housing. A button, a moving contact piece and a static contact piece are arranged in the housing. It also includes a conductive sheet, an action block and an insulating film. The moving contact piece includes a contact part and a connecting part. The contact part can elastically swing to abut against the static contact piece to form an electrical connection. The connecting part is used to cover one end of the conductive sheet, and the other end of the conductive sheet extends outside the housing. The insulating film covers the connecting part of the moving contact piece. The action block is guided and slidably arranged between the button and the contact part of the moving contact piece.

[0005] The advantages of adopting the above technical solution are as follows: A button and an action block are arranged in the housing, and the action block is arranged between the contact parts of the button and the moving contact piece. When the button is pressed, the contact part will elastically swing through the movement of the action block. With such a setting, different materials can be used for the button and the action block respectively. For example, the button can be made of an elastic material such as silica gel, while the action block can be made of plastic. Utilizing the elasticity and wear resistance of silica gel, it can withstand frequent pressing operations without being easily damaged, ensuring the service life and operation stability of the button. The plastic action block has certain rigidity and strength, and can maintain a stable shape and structure during the switching action, without being easily deformed, thus ensuring the matching accuracy and stability with the moving contact piece, making the product more flexible in a relatively small size. On this basis, an insulating diaphragm covering the connecting part of the moving contact piece is further arranged, which effectively prevents the possible leakage between the moving contact piece and the conductive piece. Even after the switch has been used for a long time and the surfaces of the moving contact piece or the conductive piece are worn or oxidized, the insulating diaphragm can always maintain good insulating performance.

[0006] The utility model can be further arranged as follows: Both the moving contact piece and the static contact piece are two, and the two moving contact pieces are symmetrically arranged on both sides in the length direction of the action block.

[0007] Through further setting, both the moving contact piece and the static contact piece are set to two and the two moving contact pieces are made symmetrical. On the one hand, the setting of two groups enables the product to still form a connection normally even if one of them has an accident or a fault during operation, strengthening the stability of the product. On the other hand, this symmetrical structure makes the force on the switch more evenly distributed during the working process. When the button is pressed, the force can be evenly transmitted to the two moving contact pieces, avoiding problems such as local wear or poor contact caused by uneven force, and improving the stability and reliability.

[0008] The utility model can be further arranged as follows: A convex rib is arranged at the lower end of the action block, and the action block forms an abutment with the connecting part of the moving contact piece through the convex rib.

[0009] Through further setting, the arrangement of the abutting convex rib concentrates the force received by the action block at the part in contact with the moving contact piece, and then better transmits the force to the moving contact piece, reducing the loss and scattering of the force, and improving the conduction efficiency and reliability of the switch.

[0010] The utility model can be further arranged as follows: A first abutting part is arranged in the middle at the upper end of the action block, a second abutting part in the shape of a convex platform is arranged at the lower end of the button, and a spring piece is arranged between the first abutting part and the second abutting part, and both ends of the spring piece form an abutting fit with the housing.

[0011] Through further settings, a first abutting portion is provided in the middle of the upper end of the action block, and a second abutting portion in the shape of a boss is provided at the lower end of the button, which can converge and concentrate the force. When the button is pressed, the conduction can be more effective, reducing the dispersion and loss of the force. A shrapnel is provided between the convex portion and the contact portion. The shrapnel undergoes elastic deformation, playing a buffering role, and can provide feedback for the user when pressing and reset the button after pressing.

[0012] The utility model can be further set as follows: an installation block is provided in the housing. The lower end of the installation block abuts against the insulating diaphragm, the upper end of the installation block forms an abutting fit with the shrapnel, and a long slot for guiding and sliding the action block is provided in the installation block opposite to the contact portion.

[0013] Through further settings, the installation block is provided, the lower end of the installation block abuts against the insulating diaphragm, and the upper end of the installation block forms an abutting fit with the shrapnel. The button and the shrapnel can be used to limit the installation block, and then the installation block is used to limit the insulating diaphragm. No additional positioning structure is required, which is convenient for the installation of the product. Finally, a long slot is provided on the installation block to form the guiding of the action block and enable the action block to align with the contact portion of the moving contact piece.

[0014] The utility model can be further set as follows: the action block includes a first connecting piece, and the first connecting piece is fixed inside the action block, and one end of the first connecting piece extends to the outside of the action block.

[0015] Through further settings, the first connecting piece is fixedly arranged in the action block, and one end of the first connecting piece extends to the outside of the action block. The connection between adjacent action blocks can be formed by the connection between adjacent first connecting pieces. After the processing is completed, the connection between adjacent first connecting pieces is cut off for separation, which is convenient for a series of links such as feeding and processing, effectively reducing the cost.

[0016] The utility model can be further set as follows: the installation block includes a second connecting piece, and the second connecting piece is fixed inside the installation block, and one end of the second connecting piece extends to the outside of the installation block.

[0017] Through further settings, the second connecting piece is fixedly arranged in the installation block, and one end of the second connecting piece extends to the outside of the action block. The connection between adjacent installation blocks can be formed by the connection between adjacent second connecting pieces. After the processing is completed, the connection between adjacent second connecting pieces is cut off for separation, which is convenient for a series of links such as feeding and processing, effectively reducing the cost.

[0018] The utility model can be further configured as follows: the housing includes an upper cover and a base. The adjacent edges of the upper cover are respectively bent and extended to form a first connecting portion and a second connecting portion. Both the first connecting portion and the second connecting portion can abut against the outer wall of the base. A bayonet and a chuck are respectively arranged on the first connecting portion and the second connecting portion, and both the bayonet and the chuck can form a snap-fit with the base.

[0019] By further setting, the first connecting portion and the second connecting portion are respectively bent and extended on the adjacent edges of the upper cover, so that the first connecting portion and the second connecting portion abut against the outer wall of the base, and different connecting components, namely the bayonet and the chuck, arranged on the first connecting portion and the second connecting portion are used to form a connection with the base. On the basis of facilitating installation, different forms of bayonets and chucks on the first connecting portion and the second connecting portion are used to prevent the bayonet and the chuck from loosening simultaneously, ensuring the stability of the connection. Description of the Drawings

[0020] Figure 1 It is a side view of an embodiment of the utility model;

[0021] Figure 2 It is an embodiment of the utility model Figure 1 It is a cross-sectional view taken along line B-B in the embodiment;

[0022] Figure 3 It is a schematic diagram of the cooperation between the moving contact piece and the insulating diaphragm inside the housing in the embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the mounting block in the embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the action block in the embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of the structure of the upper cover in the embodiment of the utility model;

[0026] Wherein: housing 1; upper cover 11; base 12; first connecting portion 111; second connecting portion 112; bayonet 113; chuck 114; button 2; second abutting portion 21; moving contact piece 3; contact portion 31; connecting portion 32; static contact piece 4; conductive piece 5; action block 6; rib 61; first abutting portion 62; first connecting piece 63; insulating diaphragm 7; elastic piece 8; mounting block 9; long groove 91; second connecting piece 92. Detailed Embodiment

[0027] An embodiment of a waterproof tactile switch of the utility model is as Figures 1-6As shown in the figure, it includes a housing 1, in which a button 2, a moving contact piece 3 and a static contact piece 4 are arranged. It also includes a conductive piece 5, an action block 6 and an insulating diaphragm 7. The moving contact piece 3 includes a contact part 31 and a connecting part 32. The contact part 31 can elastically swing to abut against the static contact piece 4 to form an electrical connection. The connecting part 32 is used to cover one end of the conductive piece 5, and the other end of the conductive piece 5 extends outside the housing 1. The insulating diaphragm 7 covers the connecting part 32 of the moving contact piece 3. The action block 6 is guidingly slidably arranged between the button 2 and the contact part 31 of the moving contact piece 3.

[0028] There are two moving contact pieces 3 and two static contact pieces 4, and the two moving contact pieces 3 are symmetrically arranged on both sides of the action block 6 in the length direction.

[0029] A rib 61 is arranged at the lower end of the action block 6, and the action block 6 forms an abutment with the connecting part 32 of the moving contact piece 3 through the rib 61.

[0030] A first abutting part 62 is arranged in the middle of the upper end of the action block 6, a second abutting part 21 in the shape of a boss is arranged at the lower end of the button 2, and a spring piece 8 is arranged between the first abutting part 62 and the second abutting part 21. Both ends of the spring piece 8 form an abutting fit with the housing 1.

[0031] An installation block 9 is arranged in the housing 1. The lower end of the installation block 9 abuts against the insulating diaphragm 7, the upper end of the installation block 9 forms an abutting fit with the spring piece 8, and a long groove 91 for guiding the sliding of the action block 6 is arranged in the installation block 9 opposite to the contact part 31.

[0032] The action block 6 includes a first connecting piece 63, the first connecting piece 63 is fixed in the action block 6, and one end of the first connecting piece 63 extends outside the action block 6.

[0033] The installation block 9 includes a second connecting piece 92, the second connecting piece 92 is fixed in the installation block 9, and one end of the second connecting piece 92 extends outside the installation block 9.

[0034] The housing 1 includes an upper cover 11 and a base 12. The adjacent edges of the upper cover 11 are respectively bent and extended to form a first connecting part 111 and a second connecting part 112. Both the first connecting part 111 and the second connecting part 112 can abut against the outer wall of the base, and a bayonet 113 and a chuck 114 are respectively arranged on the first connecting part 111 and the second connecting part 112. The bayonet 113 and the chuck 114 can both form a clamping fit with the base 12.

[0035] The above examples are only one of the preferred specific examples of the present utility model. All ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are included in the protection scope of the present utility model.

Claims

1. A waterproof touch switch, comprising a housing, wherein a button, a moving contact piece and a stationary contact piece are arranged in the housing, characterized in that: It includes a conductive sheet, an action block and an insulating diaphragm. The movable contact sheet includes a contact portion and a connecting portion. The contact portion can be elastically swung to abut against the static contact sheet to form an electrical connection. The connecting portion is used to cover one end of the conductive sheet, and the other end of the conductive sheet extends to the outside of the shell. The insulating diaphragm covers the connecting portion of the movable contact sheet. The action block is guided and slidably arranged between the button and the contact portion of the movable contact sheet.

2. The waterproof touch switch according to claim 1, characterized in that: There are two movable contact pieces and two stationary contact pieces, and the two movable contact pieces are symmetrically arranged on both sides of the length direction of the action block.

3. The waterproof touch switch according to claim 1 or 2, characterized in that: A convex rib is arranged at the lower end of the action block, and the action block is in abutment with the connecting portion of the moving contact piece through the convex rib.

4. The waterproof touch switch according to claim 3, characterized in that: A first abutment portion is provided at the middle of the upper end of the action block, a boss-shaped second abutment portion is provided at the lower end of the button, a spring sheet is provided between the first abutment portion and the second abutment portion, and both ends of the spring sheet form an abutment fit with the shell.

5. The waterproof touch switch according to claim 4, characterized in that: The housing is provided with a mounting block, the lower end of which abuts against the insulating diaphragm, the upper end of which abuts against the spring sheet, and the mounting block is provided with a long groove for guiding the sliding of the action block on the contact portion.

6. The waterproof touch switch according to claim 1 or 2 or 4 or 5, characterized in that: The action block includes a first connecting piece, which is fixed in the action block, and one end of the first connecting piece extends to the outside of the action block.

7. The waterproof touch switch according to claim 5, characterized in that: The mounting block includes a second connecting piece, which is fixed in the mounting block, and one end of the second connecting piece extends to the outside of the mounting block.

8. The waterproof touch switch according to claim 1 or 2 or 4 or 5, characterized in that: The shell includes an upper cover and a base, and the adjacent edges of the upper cover are bent and extended to form a first connecting part and a second connecting part. The first connecting part and the second connecting part can both abut against the outer wall of the base, and the first connecting part and the second connecting part are respectively provided with a bayonet and a clamping head, and the bayonet and the clamping head can form a clamping fit with the base.

Images