Touch switch

Abstract

The utility model provides a light touch switch, which comprises a shell, a button and a contact piece group are arranged on the shell, the contact piece group comprises a movable contact piece and a static contact piece, an action block is arranged in the shell, the button is made of silica gel materials, the action block is arranged between the button and the movable contact piece, and the static contact piece is arranged between the movable contact piece and the static contact piece. The number of the contact piece sets is two, the two contact piece sets are symmetrically arranged, the two movable contact pieces are opposite and obliquely extend to the end portion to abut against the lower portion of the action block in a matched mode, the movable contact pieces are arranged in an elastic swinging mode, and the action block can vertically slide under driving of the button or the movable contact pieces. Aiming at the defects in the prior art, the utility model provides the miniature touch switch which is small in size and strong in stability.

Description

Technical Field

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

[0002] A touch switch is an electronic switch. It usually includes a button, a spring, a moving contact and a static contact. When the finger gently presses the button, the spring deforms, driving the moving contact to deform and displace, and then contacts the static contact, thereby turning on the circuit and realizing signal transmission or connection of electrical equipment. When the finger releases the button, the spring returns to its original state, and the moving contact is reset, and the circuit is disconnected. Touch switches are commonly used in the field of automotive electronics. In this field, electronic equipment often faces complex and harsh working environments, and needs to ensure product stability. In addition, the rapid development of automotive technology and the increase in built-in functions of the vehicle body have limited the space for various functional components. Therefore, there are also very high requirements for the size of touch switches. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a miniature light-touch switch with small size and strong stability.

[0004] To achieve the above-mentioned purpose, the utility model provides a light touch switch, comprising a shell, a button and a contact piece group are arranged on the shell, the contact piece group includes a moving contact piece and a static contact piece, an action block is arranged in the shell, the button is made of silicone material, the action block is arranged between the button and the moving contact piece, there are two contact piece groups, the two contact piece groups are arranged symmetrically, the two moving contact pieces are opposite and extend obliquely to the end to abut and cooperate with the bottom of the action block, the moving contact piece is elastically swinging, and the action block can slide vertically driven by the button or the moving contact piece.

[0005] The advantages of adopting the above technical solution are: a button, a contact group and an action block are arranged in the shell, and the action block is arranged between the button and the moving contact piece. When the button is pressed, the moving contact piece is prompted to swing elastically through the movement of the action block. Such an arrangement allows the button and the action block to be made of different materials respectively. For example, the button can be made of elastic materials such as silicone, while the action block can be made of plastic. The elasticity and wear resistance of silicone can withstand frequent pressing operations without being easily damaged, thereby ensuring the service life and operational stability of the button. The plastic action block has a certain rigidity and strength, can maintain a stable shape and structure during the switch operation, and is not easily deformed. , thereby ensuring the matching accuracy and stability with the moving contact piece, making the product more flexible in a smaller case, and on this basis, the contact piece group is set into two, and the two contact piece groups are made symmetrical. On the one hand, the setting of the two contact piece groups can form a normal connection during operation even if one of them has an accident or failure, thereby enhancing the stability of the product. On the other hand, this symmetrical structure makes the switch more evenly stressed during operation. When the button is pressed, the force can be evenly transmitted to the two moving contacts, avoiding problems such as local wear or poor contact caused by uneven force, thereby improving the stability and reliability of the switch.

[0006] The utility model can be further configured as follows: the shell includes a base, a mounting block is arranged in the base, an assembly groove is arranged on the mounting block, the assembly groove passes through the upper and lower ends of the mounting block, and the assembly groove is arranged to align with the contact group, and the mounting block forms a guiding sliding fit with the inner wall of the assembly groove.

[0007] Through further settings, an assembly groove is provided on the mounting block arranged in the base, and the assembly groove is aligned with the contact group, which provides precise positioning for the installation of the contact group. During the installation process, it is only necessary to align the contact group with the assembly groove and lower it to ensure that the relative position of the contact group and other components is accurate, reducing the adjustment and calibration steps during the installation process and improving the installation efficiency. The mounting block forms a guided sliding fit with the inner wall of the assembly groove, which provides a clear guide for the installation of the action block. The action block can slide smoothly along the inner wall of the assembly groove to the designated position, thereby enhancing the stability of the product.

[0008] The utility model can be further configured as follows: the shell includes an upper cover for forming a snap connection with the base, the button is arranged on the upper cover, a sealing part is included below the button, and the upper cover and the base can form a clamp for the sealing part.

[0009] Through further configuration, the upper cover and the base of the shell are connected by a snap-fitting manner, which facilitates quick connection between the two without the use of complex connectors such as screws, greatly simplifies the installation process, forms a sealing portion under the button, and allows the upper cover and the base to be clamped when they are snapped together, thereby forming a good sealing effect and protecting the electronic components in the base from being affected by the external environment.

[0010] The utility model can be further configured as follows: a flat columnar protrusion is provided at the upper end of the action block, a gradually decreasing contact portion in the shape of a cone is provided below the button, a spring sheet is provided between the protrusion and the contact portion, and both ends of the spring sheet extend in an arc shape to form abutment limit with the shell.

[0011] Through further configuration, the tapered contact portion below the button gathers and concentrates the force, so that the force acts more effectively on the raised portion of the action block. This design ensures efficient transmission of force from the button to the action block, reduces force dispersion and loss, and a spring is arranged between the raised portion and the contact portion. The spring undergoes elastic deformation to play a buffering role and can provide the user with feedback of the press. The spring can also be set to a sudden jump type, utilizing the characteristic of the spring that it suddenly deforms after being subjected to a certain degree of force, so that the switch can respond more quickly. On this basis, the spring can also be used to cause the button to return to its original state, so that the moving contact piece only needs to drive the action block to return, reducing the requirement for the elastic force of the moving contact piece, and making the overall structure of the product more stable.

[0012] The utility model can be further configured as follows: the lower end of the action block is provided with abutting convex ribs corresponding to the two moving contact pieces respectively, and the abutting convex ribs are arranged in an arc shape.

[0013] Through further configuration, the abutment ribs are configured to concentrate the force exerted on the action block at the position in contact with the moving contact piece, and then the force is further transmitted to the moving contact piece through the moving contact piece. Due to the good coordination between the abutment ribs and the moving contact piece, the force can be accurately conducted along the designed path during the transmission process, thereby reducing the loss and scattering of force and improving the conduction efficiency and reliability of the switch.

[0014] The utility model can be further configured as follows: a guide convex rib is arranged at the side wall of the action block, the guide convex rib is arranged in an arc-shaped convex shape, and the guide convex rib is abutted and matched with the inner wall of the assembly groove.

[0015] Through further configuration, when the arc-shaped guide rib contacts the inner wall of the assembly groove, it is line contact rather than surface contact. Compared with the plane contact method, this line contact can effectively reduce the friction between the two. When installing or operating the switch, the smaller friction makes the operation smoother, reducing the possibility of component damage, installation difficulties and operation problems caused by excessive friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A top view of an embodiment of the utility model;

[0017] Figure 2 For the utility model embodiment Figure 1 Sectional view at AA in the middle;

[0018] Figure 3 It is a schematic diagram of the structure inside the embodiment of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the action block in the embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the moving contact piece in the embodiment of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the installation block in the embodiment of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the spring piece in the embodiment of the utility model;

[0023] Wherein: housing 1; base 11; upper cover 12; button 2; sealing part 21; contact part 22; contact piece group 3; moving contact piece 31; stationary contact piece 32; action block 4; raised part 41; abutting rib 42; guide rib 43; mounting block 5; assembly groove 51; spring piece 6. DETAILED DESCRIPTION

[0024] The utility model is a kind of touch switch implementation example Figure 1-7 As shown: it includes a shell 1, on which a button 2, a contact piece group 3 and an action block 4 are arranged, the contact piece group 3 includes a moving contact piece 31 and a static contact piece 32, the button 2 is made of silicone material, the action block 4 is arranged between the button 2 and the moving contact piece 31, there are two contact piece groups 3, the two contact piece groups 3 are symmetrically arranged, the two moving contact pieces 31 are opposite and extend obliquely to the end to abut and cooperate with the bottom of the action block 4, the moving contact piece 31 is elastically swinging, and the action block 4 can slide vertically driven by the button 2 or the moving contact piece 31, specifically, when the button 2 is pressed down, it drives the action block 4 to slide downward, and the moving contact piece 31 drives the action block 4 to elastically reset upward after the button 2 is released.

[0025] The housing 1 includes a base 11, a mounting block 5 is provided in the base 11, an assembly groove 51 is provided on the mounting block 5, the assembly groove 51 passes through the upper and lower ends of the mounting block 5, and the assembly groove 51 is aligned with the contact group 3, and the mounting block 5 forms a guiding sliding fit with the inner wall of the assembly groove 51.

[0026] The housing 1 includes an upper cover 12 for forming a snap connection with the base 11 , the button 2 is disposed on the upper cover 12 , and a sealing portion 21 is included below the button 2 . The upper cover 12 and the base 11 can clamp the sealing portion 21 .

[0027] A flat columnar protrusion 41 is provided at the upper end of the action block 4, a gradually decreasing contact portion 22 in the shape of a cone is provided below the button 2, a spring piece 6 is provided between the protrusion 41 and the contact portion 22, and both ends of the spring piece 6 extend in an arc shape to form abutment limit with the shell 1.

[0028] The lower end of the action block 4 is provided with abutting convex ribs 42 corresponding to the two moving contact pieces 31 respectively, and the abutting convex ribs 42 are arranged in an arc shape.

[0029] A guide rib 43 is disposed on the side wall of the action block 4 . The guide rib 43 is disposed in an arc-shaped protrusion shape. The guide rib 43 abuts against the inner wall of the assembly groove 51 .

[0030] The above example is only one preferred specific example of the present invention. The common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A touch switch, comprising a housing, wherein the housing is provided with a button and a contact piece group, wherein the contact piece group comprises a moving contact piece and a stationary contact piece, and wherein: An action block is arranged in the shell, the button is made of silicone material, the action block is arranged between the button and the moving contact piece, there are two contact piece groups, the two contact piece groups are symmetrically arranged, the two moving contact pieces are opposite and obliquely extended to the end to abut and cooperate with the bottom of the action block, the moving contact piece is elastically swingingly arranged, and the action block can slide vertically driven by the button or the moving contact piece, the shell includes a base, a mounting block is arranged in the base, an assembly groove is arranged on the mounting block, the assembly groove passes through the upper and lower ends of the mounting block, and the assembly groove is arranged to align with the contact piece group, and the mounting block forms a guided sliding fit with the inner wall of the assembly groove.

2. The touch switch according to claim 1, characterized in that: The shell includes an upper cover for forming a snap connection with the base, the button is arranged on the upper cover, and a sealing part is included below the button. The upper cover and the base can form a clamp for the sealing part.

3. The touch switch according to claim 1 or 2, characterized in that: A flat columnar protrusion is arranged at the upper end of the action block, a tapered contact portion is arranged below the button, a spring sheet is arranged between the protrusion and the contact portion, and both ends of the spring sheet extend in an arc shape to form abutment limit with the shell.

4. The touch switch according to claim 1 or 2, characterized in that: The lower end of the action block is provided with abutting convex ribs corresponding to the two moving contact pieces respectively, and the abutting convex ribs are arranged in an arc shape.

5. The touch switch according to claim 4, characterized in that: A guide convex rib is arranged on the side wall of the action block, and the guide convex rib is arranged in an arc-shaped convex shape, and the guide convex rib is abutted and matched with the inner wall of the assembly groove.

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