Miniature pin switch

Abstract

The utility model discloses a small pin switch, which comprises a shell and a plug, two cavities are respectively arranged on two sides in the shell, a contact mechanism and a wiring end are arranged in each cavity, each contact mechanism comprises a contact head, an elastic body and a fixed end, two contact holes are arranged at the front end of the shell, and the elastic body is arranged in each contact hole. Two contact holes are formed in the shell, the two contact holes correspond to contact heads in the two cavities respectively, the fixed end is fixed to the wiring end and electrically connected with the wiring end, the two sides of the shell are each provided with an operation hole, two wiring holes are formed in the bottom of the shell, and the two operation holes and the two wiring holes directly face the wiring ends in the two cavities respectively; according to the small-sized pin switch, through the design of the structure of the shell and the layout design of the contact mechanism and the wiring end in the shell, the overall width size of the shell of the pin switch can be reduced, so that the effects of size reduction and simplification are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pin switches, and more specifically to a small pin switch. Background Art

[0002] Now in the market environment, the requirements for product size are getting higher and higher, and smaller products are constantly being pursued to meet the requirements of the market and customers. The existing patent application number is CN202121844682.6, and the patent name is a utility model patent for door contact switch and elevator door, which discloses: a first contact mechanism; including a contact head, an elastomer and a fixed end, the shape of the elastomer is any one of C-type, U-type and Ω-type; the fixed end is fixed to the terminal and electrically connected to the terminal; the elastomer is supported and constrained by the first support member in the middle cavity of the shell and part of the shell wall, so that the elastomer maintains an elastic force to open outward. This patent achieves extremely high requirements for the number of actions and life, and is suitable for occasions with large contact action strokes. However, in this patent, due to the shell structure and the internal layout structure of the shell, the shell width is large, which is not conducive to installation inside the equipment, and the overall size of the equipment cannot be further streamlined. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a small pin switch, which can reduce the overall shell width of the pin switch by designing the structure of the shell and the layout of the contact mechanism and the terminal inside the shell, thereby achieving the effect of reducing and streamlining the size.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A small pin switch comprises a shell and a plug, wherein two chambers are respectively arranged on both sides of the shell, and contact mechanisms and wiring terminals are arranged in both chambers, wherein the contact mechanisms include a contact head, an elastic body and a fixed end, and two contact holes are arranged at the front end of the shell, and the two contact holes correspond to the contact heads in the two chambers respectively, and the fixed end is fixed at the wiring terminal and electrically connected to the wiring terminal, and an operating hole is respectively arranged on both sides of the shell, and two wiring holes are arranged at the bottom of the shell, and the two operating holes and the two wiring holes are respectively opposite to the wiring terminals in the two chambers.

[0006] Furthermore, the plug includes a base and an insertion portion, and the insertion portion can extend into two contact holes to contact with contact heads of two contact assemblies to achieve electrical conduction.

[0007] Furthermore, the shell and the base are made of insulating material.

[0008] Furthermore, the shape of the elastic body is any one of C-type, U-type and Ω-type.

[0009] Further, the wiring terminal includes a wiring seat and a wiring bolt, the wiring seat is installed in the chamber, and has a wiring groove and a threaded hole, the fixed end extends into the wiring groove, and the wiring bolt extends into the threaded hole and is electrically connected to the fixed end.

[0010] The shell further comprises a bottom shell and a top cover, two chambers are located on the bottom shell, and openings are provided on the tops of the chambers, and the top cover is detachably mounted on the bottom shell.

[0011] Furthermore, a buckle groove is provided on the bottom shell, and a buckle is provided on the top cover, and the buckle is inserted into the buckle groove to realize a buckling connection.

[0012] Furthermore, a through mounting hole is provided on the bottom shell, a countersunk hole is provided above the mounting hole, a mounting bolt is provided in the countersunk hole, the mounting bolt extends into the countersunk hole and passes through the mounting hole, and a through hole facing the countersunk hole is provided on the top cover.

[0013] Furthermore, the width a of the shell is 20 mm.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model reduces the overall shell width of the pin switch by designing the structure of the shell and the layout of the contact mechanism and the wiring terminals inside the shell, thereby achieving the effect of size reduction and simplification, and by arranging two chambers in the shell, the two contact mechanisms can be separated to ensure that the two will not contact and conduct when disconnected, and by arranging operating holes and wiring holes on both sides and the bottom of the shell, different functional holes can be clearly separated for easy distinction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 A schematic diagram of the structure of a small pin switch Figure 1 ;

[0018] Figure 2 A schematic diagram of the structure of a small pin switch Figure 2 ;

[0019] Figure 3A schematic diagram of the structure of a small pin switch Figure 3 ;

[0020] Figure 4 A schematic diagram of the structure of a small pin switch Figure 4 .

[0021] Markings in the figure are: 1. Shell; 101. Bottom shell; 102. Top cover; 103. Operation hole; 104. Contact hole; 105. Wiring hole; 106. Buckle groove; 107. Buckle; 108. Penetration hole; 109. Countersunk hole; 110. Chamber; 2. Plug; 201. Base; 202. Insertion part; 3. Contact mechanism; 301. Contact head; 302. Elastomer; 303. Fixed end; 4. Wiring terminal; 401. Wiring seat; 402. Wiring bolt. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0024] A small pin switch, such as Figure 1-4As shown, it includes a shell 1 and a plug 2, two chambers 110 are respectively arranged on both sides of the shell 1, and contact mechanisms 3 and wiring terminals 4 are arranged in the two chambers 110. The contact mechanism 3 includes a contact head 301, an elastic body 302 and a fixed end 303. Two contact holes 104 are arranged at the front end of the shell 1, and the two contact holes 104 correspond to the contact heads 301 in the two chambers 110 respectively. The fixed end 303 is fixed at the wiring terminal 4 and electrically connected to the wiring terminal 4. An operating hole 103 is respectively arranged on both sides of the shell 1, and two wiring holes 105 are arranged at the bottom of the shell 1. The two operating holes 103 and the two wiring holes 105 are respectively opposite to the wiring terminals 4 in the two chambers 110.

[0025] The utility model designs the structure of the shell 1 and the layout of the contact mechanism 3 and the terminal 4 inside the shell 1, so that the width of the overall shell 1 of the pin switch can be reduced, thereby achieving the effect of reducing the size and streamlining. In addition, by arranging two chambers 110 in the shell 1, the two contact mechanisms 3 can be separated to ensure that the two will not contact and conduct when disconnected. In addition, by arranging operating holes 103 and wiring holes 105 on both sides and the bottom of the shell 1, different functional holes can be clearly separated for easy distinction.

[0026] In this embodiment, preferably, Figure 1-2 As shown, the plug 2 includes a base 201 and an inserting portion 202 , and the inserting portion 202 can extend into two contact holes 104 to contact with the contact heads 301 of two contact assemblies to achieve electrical conduction.

[0027] Preferably in this embodiment, the housing 1 and the base 201 are made of insulating material.

[0028] In this embodiment, preferably, Figure 3-4 As shown, the shape of the elastic body 302 is any one of a C-type, a U-type and an Ω-type.

[0029] In this embodiment, preferably, Figure 3-4 As shown, the terminal 4 includes a terminal seat 401 and a terminal bolt 402. The terminal seat 401 is installed in the chamber 110, and the terminal seat 401 has a terminal groove and a threaded hole. The fixed end extends into the terminal groove, and the terminal bolt 402 extends into the threaded hole and is electrically connected to the fixed end 303.

[0030] Preferably in this embodiment, the shell 1 includes a bottom shell 101 and a top cover 102, two chambers 110 are located on the bottom shell 101, and an opening is provided on the top of the chamber 110, and the top cover 102 is detachably installed on the bottom shell 101, thereby facilitating the disassembly and assembly between the bottom shell 101 and the top cover 102 and the installation of the internal contact components.

[0031] Preferably in this embodiment, a buckle groove 106 is provided on the bottom shell 101, and a buckle 107 is provided on the top cover 102. The buckle 107 is inserted into the buckle groove 106 to realize a buckling connection, thereby realizing a detachable connection.

[0032] In the present embodiment, preferably, the bottom shell 101 is provided with a through mounting hole, a countersunk hole 109 is provided above the mounting hole, a mounting bolt is provided in the countersunk hole 109, the mounting bolt extends into the countersunk hole 109 and passes through the mounting hole, and the top cover 102 is provided with a through hole 108 facing the countersunk hole 109, so that when the bottom shell 101 is installed, the mounting bolt can be extended into the countersunk hole 109 through the through hole 108 for operation and installation.

[0033] Preferably in this embodiment, the width a of the housing 1 is 20 mm.

[0034] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A small pin switch, characterized in that: It includes a shell and a plug, two chambers are respectively arranged on both sides of the shell, and contact mechanisms and wiring terminals are arranged in the two chambers. The contact mechanism includes a contact head, an elastic body and a fixed end. Two contact holes are arranged at the front end of the shell, and the two contact holes correspond to the contact heads in the two chambers respectively. The fixed end is fixed at the wiring terminal and electrically connected to the wiring terminal. An operation hole is respectively arranged on both sides of the shell, and two wiring holes are arranged at the bottom of the shell. The two operation holes and the two wiring holes are respectively opposite to the wiring terminals in the two chambers.

2. A small pin switch according to claim 1, characterized in that: The plug comprises a base and an inserting portion, wherein the inserting portion can extend into two contact holes to contact with contact heads of two contact assemblies to achieve electrical conduction.

3. A small pin switch according to claim 2, characterized in that: The shell and the base are made of insulating materials.

4. A small pin switch according to claim 1, characterized in that: The elastic body has a shape of any one of a C-type, a U-type and an Ω-type.

5. A small pin switch according to claim 1, characterized in that: The wiring terminal includes a wiring seat and a wiring bolt. The wiring seat is installed in the chamber and has a wiring groove and a threaded hole. The fixed end extends into the wiring groove, and the wiring bolt extends into the threaded hole and is electrically connected to the fixed end.

6. A small pin switch according to claim 1, characterized in that: The shell comprises a bottom shell and a top cover, two chambers are located on the bottom shell, and openings are arranged on the tops of the chambers, and the top cover is detachably mounted on the bottom shell.

7. A small pin switch according to claim 6, characterized in that: The bottom shell is provided with a buckle groove, and the top cover is provided with a buckle, and the buckle is inserted into the buckle groove to realize buckling connection.

8. A small pin switch according to claim 6, characterized in that: The bottom shell is provided with a through mounting hole, a countersunk hole is provided above the mounting hole, a mounting bolt is provided in the countersunk hole, the mounting bolt extends into the countersunk hole and passes through the mounting hole, and the top cover is provided with a through hole facing the countersunk hole.

9. A small pin switch according to claim 1, characterized in that: The width a of the shell is 20 mm.

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