Microswitch

Abstract

The microswitch is characterized in that a housing is provided with an accommodating cavity, and a first conducting strip, a second conducting strip and a third conducting strip are accommodated in the accommodating cavity; the driving piece is contained in the containing cavity and comprises a pressing part and a fixing part, the pressing part is connected with the fixing part, the pressing part penetrates through the shell and extends to the outside, and the fixing part is provided with a fixing cavity; the reset piece is contained in the containing cavity, abuts against the driving piece and gives reset force to the driving piece; the reed assembly is contained in the fixing cavity, one end of the reed assembly is electrically connected with the first conducting strip, a first clamping groove is formed in the other end of the reed assembly, the second conducting strip and the third conducting strip are both located on the motion trail of the first clamping groove, and the reed assembly is detachably connected with the driving part; the reed assembly is installed in the fixing cavity, the linkage effect between the reed assembly and the driving piece is achieved, the reed assembly and the driving piece are detachably connected, assembling is more convenient and simpler, and therefore the assembling efficiency is improved.

Description

Technical Field

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

[0002] For example, the Chinese utility model patent, with the announcement number "CN208954863U" and the patent name "A structurally stable waterproof micro switch", discloses that the switch is fixedly connected to the reed, and by pressing a button, the switch and the reed move together to achieve the connection effect of different circuits.

[0003] In the prior art, the switch and the reed are connected and fixed by riveting. The problem with this structure is that the process is cumbersome and requires matching corresponding riveting equipment to achieve the riveting and fixing effect. The installation efficiency is low. How to improve the installation efficiency has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is how to improve the installation efficiency.

[0005] To this end, a micro switch includes:

[0006] A housing, wherein the housing is provided with a housing cavity, and the housing cavity accommodates a first conductive sheet, a second conductive sheet, and a third conductive sheet;

[0007] A driving member, the driving member is accommodated in the accommodating cavity, the driving member comprises a pressing portion and a fixing portion, the pressing portion is connected to the fixing portion, the pressing portion passes through the housing and extends to the outside, and the fixing portion is provided with a fixing cavity;

[0008] A reset member, the reset member is accommodated in the accommodating cavity, the reset member abuts against the driving member, and the reset member applies a reset force to the driving member;

[0009] A reed assembly is accommodated in the fixed cavity, one end of the reed assembly is electrically connected to the first conductive sheet, the other end of the reed assembly is provided with a first clamping groove, the second conductive sheet and the third conductive sheet are both located on the motion track of the first clamping groove, and the reed assembly is detachably connected to the driving member.

[0010] One of the reed assembly and the driving member is provided with a buckle, and the other of the reed assembly and the driving member is provided with a slot matched with the buckle.

[0011] The reed assembly includes two reeds and a connecting portion, wherein the connecting portion connects the two reeds, the buckle or the slot is arranged on the connecting portion, and the two reeds form the first clamping slot.

[0012] The first conductive sheet extends toward the reed assembly. The other end of the reed assembly is provided with a second clamping groove, and the second clamping groove cooperates with the first conductive sheet.

[0013] The second conductive sheet is provided with a second contact surface, the third conductive sheet is provided with a third contact surface, and the second contact surface and the third contact surface are provided with an isolation portion.

[0014] The accommodating cavity is provided with an insulating portion, and the third conductive sheet is partially located in the insulating portion.

[0015] The first conductive sheet, the second conductive sheet, the third conductive sheet and the housing are integrally formed by injection molding.

[0016] It also includes a waterproof sleeve, which is sleeved on the pressing part.

[0017] The shell includes a cover shell and a base, and the cover shell and the base cooperate to form the accommodating cavity.

[0018] The cover shell is sleeved on the base.

[0019] The technical solution of the utility model has the following advantages:

[0020] 1. The utility model provides a micro switch, in which a fixing cavity is set by a driving member, and a reed assembly is installed in the fixing cavity, so as to realize the linkage effect between the reed assembly and the driving member, and the reed assembly and the driving member are detachably connected. Compared with the riveting method in the prior art, the detachable connection is more convenient and simple to assemble, and can be assembled without special equipment, thereby improving the assembly efficiency.

[0021] 2. The micro switch provided by the utility model achieves a detachable connection effect through the cooperation of the buckle and the slot, making the installation more convenient. In addition, the assembly effect can also be achieved through bolt connection or interference fit.

[0022] 3. The micro switch provided by the utility model has a connection portion so that the entire reed assembly forms an integrated structure, which makes installation more convenient and reduces installation procedures during the assembly process.

[0023] 4. In a micro switch provided by the utility model, the provision of the first conductive sheet improves the electrical connection stability, so that the second clamping groove slides on the first conductive sheet.

[0024] 5. The micro switch provided by the utility model has an isolating portion which forms a spacing effect to prevent creepage between the second contact surface and the third contact surface. Secondly, when the reed assembly passes through the isolating portion during sliding, a short interrupt signal is generated.

[0025] 6. The micro switch provided by the utility model has an insulating part, which forms an insulating effect between the second conductive sheet and the third conductive sheet to prevent electric shock.

[0026] 7. The utility model provides a micro switch with a waterproof cover, which forms a waterproof effect.

[0027] 8. The micro switch provided by the utility model adopts a sleeve connection method, so that the connection between the cover and the base is located inside the cover, and the sealing level can be improved by glue filling or other sealing means. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of a micro switch provided by the utility model;

[0030] Figure 2 A cross-sectional view of a micro switch provided by the utility model;

[0031] Figure 3 A partial exploded view of a micro switch provided by the utility model;

[0032] Figure 4 A partial front view of a micro switch provided by the utility model;

[0033] Figure 5 A schematic diagram of the partial structure of a micro switch provided by the utility model;

[0034] Figure 6 for Figure 5 sectional view of .

[0035] Description of reference numerals:

[0036] 11. Shell; 12. First conductive sheet; 13. Second conductive sheet; 14. Third conductive sheet; 15. Driving member; 16. Pressing portion; 17. Fixing portion; 18. Resetting member; 19. Reed assembly; 20. Buckle; 21. Slot; 22. Isolation portion; 23. Waterproof cover; 24. Cover; 25. Base; 111. Accommodating cavity; 112. Insulating portion; 131. Second contact surface; 141. Third contact surface; 171. Fixing cavity; 191. First clamping groove; 192. Reed; 193. Connecting portion; 194. Second clamping groove; 1711. Crimping block. DETAILED DESCRIPTION

[0037] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] Example 1

[0042] This embodiment provides a micro switch, as shown in the attached Figure 1-6 As shown, including:

[0043] The shell 11 is provided with a housing cavity 111, and the housing cavity 111 accommodates a first conductive sheet 12, a second conductive sheet 13, and a third conductive sheet 14. The first conductive sheet 12, the second conductive sheet 13, and the third conductive sheet 14 are partially accommodated in the housing cavity 111, and the remaining parts of the three extend to the outside through the bottom surface of the shell 11. The parts of the three extending to the outside are arranged in parallel and have equal lengths. The parts of the first conductive sheet 12, the second conductive sheet 13, and the third conductive sheet 14 extending to the outside are used to cooperate with an external circuit to form an electrical connection effect. Here, the parts of the first conductive sheet 12, the second conductive sheet 13, and the third conductive sheet 14 extending to the outside can be sheet-shaped, columnar, or in other shapes. For example, the parts extending to the outside are provided with holes to facilitate cooperation with external wires. The first conductive sheet 12, the second conductive sheet 13, and the third conductive sheet 14 form two circuits. In this embodiment, the first conductive sheet 12 is described as a common end, that is, the first conductive sheet 12 is electrically connected to the second conductive sheet 13 to form one circuit, and the first conductive sheet 12 is electrically connected to the third conductive sheet 14 to form another circuit.

[0044] The driving member 15 is accommodated in the accommodating chamber 111. The driving member 15 includes a pressing portion 16 and a fixing portion 17. The pressing portion 16 is connected to the fixing portion 17. The pressing portion 16 extends to the outside through the housing 11. Here, the pressing portion 16 extends to the outside for cooperating with an operator or an operating mechanism. By pressing the driving member 15, the entire driving member 15 is vertically moved up and down relative to the housing 11. In this embodiment, the pressing portion 16 extends to the outside through the top surface of the housing 11. The fixing portion 17 is located in the accommodating chamber 111, and the fixing portion 17 is provided with a fixing chamber 171.

[0045] The reset member 18 is accommodated in the accommodating chamber 111, the reset member 18 abuts against the driving member 15, and the other end of the reset member 18 abuts against the inner wall of the accommodating chamber 111, and the reset member 18 gives a reset force to the driving member 15. After pressing the driving member 15, when the force applied to the driving member 15 disappears, the reset member 18 will drive the driving member 15 to quickly return to the initial state. Here, the reset member 18 can be a spring or other elastic member.

[0046] The reed assembly 19 is accommodated in the fixed cavity 171. One end of the reed assembly 19 is electrically connected to the first conductive sheet 12. The other end of the reed assembly 19 is provided with a first clamping groove 191. The second conductive sheet 13 and the third conductive sheet 14 are both located on the movement track of the first clamping groove 191. The reed assembly 19 and the driving member 15 are arranged in linkage, that is, when the driving member 15 moves vertically up and down, the reed assembly 19 also moves vertically up and down. For example, in the first state, one end of the reed assembly 19 is electrically connected to the first conductive sheet 12, and the first clamping groove 191 is electrically connected to the third conductive sheet 14, forming a circuit; when the driving member 15 is pressed, the reed assembly 19 moves vertically downward with the driving member 15, and the first clamping groove 191 is separated from the third conductive sheet 14. At this time, the first clamping groove 191 moves downward to cooperate with the second conductive sheet 13, forming an electrical connection effect between the first conductive sheet 12 and the second conductive sheet 13, forming another circuit. Here, the reed assembly 19 and the driving member 15 are detachably connected. Here, the detachable connection can be a snap-on connection, a bolt connection, or an interference connection.

[0047] A fixing cavity 171 is provided through the driving member 15, and the reed assembly 19 is installed in the fixing cavity 171, so as to realize the linkage effect between the reed assembly 19 and the driving member 15, and the reed assembly 19 and the driving member 15 are detachably connected. Compared with the riveting method in the prior art, the detachable connection is more convenient and simple to assemble, and can be assembled without special equipment, thereby improving the assembly efficiency.

[0048] Specifically, as attached Figure 5-6 As shown, one of the reed assembly 19 and the driving member 15 is provided with a buckle 20, and the other of the reed assembly 19 and the driving member 15 is provided with a slot 21 that cooperates with the buckle 20. Specifically, the reed assembly 19 cooperates with the fixed cavity 171 on the fixing portion 17. When the reed assembly 19 is provided with a buckle 20, the side wall of the fixed cavity 171 is provided with a slot 21 that cooperates with the buckle 20. Alternatively, when the reed assembly 19 is provided with a slot 21, the side wall of the fixed cavity 171 is provided with a buckle 20 that cooperates with the slot 21. In this embodiment, only the example that the reed assembly 19 is provided with a buckle 20 and the side wall of the fixed cavity 171 is provided with a slot 21 is described. The cooperation between the buckle 20 and the slot 21 achieves the effect of detachable connection, making installation more convenient, and the buckle installation does not require tools. In addition, the detachable assembly effect can also be achieved by bolt connection or interference fit.

[0049] Specifically, as attached Figure 5-6As shown, the reed assembly 19 includes two reeds 192 and a connecting portion 193, and the connecting portion 193 connects the two reeds 192. In this embodiment, the connecting portion 193 is a U-shaped structure, which is used to connect the lower ends of the two reeds 192. A crimping block 1711 is also provided in the fixing cavity 171, and the crimping block 1711 is against the connecting portion 193. A buckle 20 or a slot 21 is provided on the connecting portion 193. In this embodiment, the buckle 20 is specifically provided on the connecting portion 193. The number of buckles 20 can be adjusted according to actual needs, and can be one, two, or more. In this embodiment, a buckle 20 is provided on both sides of the connecting portion 193. The connecting portion 193 is located below the middle position of the two reeds 192, forming a symmetrical arrangement, thereby also improving the strength of the entire reed assembly 19. The two reeds 192 form a first clamping groove 191. The setting of the connecting portion 193 makes the whole reed assembly 19 form an integrated structure, which is more convenient to install during the assembly process and reduces the installation process. In addition, the reed assembly 19 can also be two independent reeds 192, which are connected to the fixing cavity 171 by the buckle 20, and the first clamping groove 191 can also be formed. The only difference is that the connection portion 193 only requires one step to complete the installation, while the two independent reeds 192 require two steps to install.

[0050] Specifically, the reed assembly 19 is integrally formed, that is, two reeds 192 and a connecting portion 193 are formed by punching and bending. The integrally formed arrangement makes processing more convenient and installation more convenient.

[0051] Specifically, as attached Figure 1-4 As shown, the first conductive sheet 12 extends toward the reed assembly 19, and the other end of the reed assembly 19 is provided with a second clamping groove 194, and the second clamping groove 194 cooperates with the first conductive sheet 12. The first clamping groove 191 is formed at one end of the two reeds 192, and the second clamping groove 194 is formed at the other end of the two reeds 192. The second clamping groove 194 slides on the first conductive sheet 12, so that the reed assembly 19 is always electrically connected to the first conductive sheet 12, thereby improving the stability of the electrical connection.

[0052] Specifically, as attached Figure 3-4As shown, the second conductive sheet 13 is provided with a second contact surface 131, the third conductive sheet 14 is provided with a third contact surface 141, and the second contact surface 131 and the third contact surface 141 are provided with an isolating portion 22. The isolating portion 22 is provided to form a spacing effect to prevent creepage between the second contact surface 131 and the third contact surface 141. Secondly, when the spring assembly 19 passes through the isolating portion 22 during the sliding process, a short interrupt signal will be generated. In this embodiment, the third contact surface 141 is located at the top, the second contact surface 131 is located at the bottom, and the isolating portion 22 is located between the two. In the first state, the first clamping groove 191 cooperates with the third contact surface 141 to achieve an electrical connection effect. When the driving member 15 moves vertically downward, the first clamping groove 191 first separates from the third contact surface 141, then cooperates with the isolating portion 22, and finally cooperates with the second contact surface 131 to achieve the electrical connection effect in the second state. When the force applied to the driving member 15 disappears, the first clamping groove 191 moves upward again through the isolating portion 22. Here, the size of the isolation portion 22 can be adjusted according to actual needs, but it should be considered that the first clamping groove 191 cannot simultaneously connect the second contact surface 131 and the third contact surface 141. The second contact surface 131, the third contact surface 141, and the isolation portion 22 are coplanar.

[0053] Specifically, the accommodating cavity 111 is provided with an insulating portion 112, the isolating portion 22 is part of the insulating portion 112, the third conductive sheet 14 is partially located in the insulating portion 112, and the second conductive sheet 13 is also partially located in the insulating portion 112. The setting of the insulating portion 112 forms an insulating effect between the second conductive sheet 13 and the third conductive sheet 14 to prevent cross-current. In this embodiment, the insulating portion 112 is a columnar structure close to the second conductive sheet 13, and the third conductive sheet 14 is extended to the top of the second conductive sheet 13 by bending.

[0054] Specifically, the first conductive sheet 12, the second conductive sheet 13, the third conductive sheet 14 and the housing 11 are integrally formed by injection molding. In order to improve the injection molding effect, the first conductive sheet 12, the second conductive sheet 13, and the third conductive sheet 14 may be provided with holes or ribs to increase the contact area.

[0055] Specifically, in this embodiment, the pressing portion 16 and the fixing portion 17 are also an integrated structure.

[0056] Specifically, it also includes a waterproof cover 23, which is sleeved on the pressing portion 16. The provision of the waterproof cover 23 forms a waterproof effect. The waterproof cover 23 is located between the housing 11 and the pressing portion 16, forming a sealing effect between the pressing portion 16 and the housing 11.

[0057] Specifically, as attached Figure 1-2As shown, the housing 11 includes a cover 24 and a base 25, and the cover 24 and the base 25 cooperate to form a receiving cavity 111. The pressing portion 16 extends upward through the cover 24. The first conductive sheet 12, the second conductive sheet 13, and the third conductive sheet 14 are integrally formed with the base 25 by injection molding, and the insulating portion 112 is a part of the base 25.

[0058] Specifically, the cover shell 24 is sleeved on the base 25. The sleeve connection mode is adopted so that the connection between the cover shell 24 and the base 25 is located inside the cover shell 24, and the sealing level can be improved by glue injection or other sealing means.

[0059] Specifically, the cover shell 24 and the base 25 may be connected by a snap-fit ​​connection, or by a bolt connection, or by ultrasonic welding.

[0060] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A micro switch, characterized in that: include: A housing (11), the housing (11) being provided with a receiving cavity (111), the receiving cavity (111) receiving a first conductive sheet (12), a second conductive sheet (13) and a third conductive sheet (14); A driving member (15), the driving member (15) being accommodated in the accommodating cavity (111), the driving member (15) comprising a pressing portion (16) and a fixing portion (17), the pressing portion (16) being connected to the fixing portion (17), the pressing portion (16) passing through the housing (11) and extending to the outside, and the fixing portion (17) being provided with a fixing cavity (171); a reset member (18), the reset member (18) being accommodated in the accommodating cavity (111), the reset member (18) being in contact with the driving member (15), and the reset member (18) imparting a reset force to the driving member (15); A reed assembly (19), the reed assembly (19) being accommodated in the fixed cavity (171), one end of the reed assembly (19) being electrically connected to the first conductive sheet (12), the other end of the reed assembly (19) being provided with a first clamping groove (191), the second conductive sheet (13) and the third conductive sheet (14) being both located on a movement track of the first clamping groove (191), and the reed assembly (19) being detachably connected to the driving member (15).

2. The micro switch according to claim 1, characterized in that: One of the reed assembly (19) and the driving member (15) is provided with a buckle (20), and the other of the reed assembly (19) and the driving member (15) is provided with a slot (21) matched with the buckle (20).

3. The micro switch according to claim 2, characterized in that: The reed assembly (19) comprises two reeds (192) and a connecting portion (193), wherein the connecting portion (193) connects the two reeds (192), the buckle (20) or the slot (21) is arranged on the connecting portion (193), and the two reeds (192) form the first clamping slot (191).

4. The micro switch according to claim 1, characterized in that: The first conductive sheet (12) extends toward the reed assembly (19); the other end of the reed assembly (19) is provided with a second clamping groove (194); the second clamping groove (194) cooperates with the first conductive sheet (12).

5. The micro switch according to claim 1, characterized in that: The second conductive sheet (13) is provided with a second contact surface (131), the third conductive sheet (14) is provided with a third contact surface (141), and the second contact surface (131) and the third contact surface (141) are provided with an isolation portion (22).

6. The micro switch according to claim 1, characterized in that: The accommodating cavity (111) is provided with an insulating portion (112), and the third conductive sheet (14) is partially located inside the insulating portion (112).

7. The micro switch according to claim 1, characterized in that: The first conductive sheet (12), the second conductive sheet (13), the third conductive sheet (14) and the housing (11) are integrally formed by injection molding.

8. The micro switch according to claim 1, characterized in that: It also comprises a waterproof cover (23), wherein the waterproof cover (23) is sleeved on the pressing portion (16).

9. The micro switch according to claim 1, characterized in that: The housing (11) comprises a cover shell (24) and a base (25), and the cover shell (24) and the base (25) cooperate to form the accommodating cavity (111).

10. The micro switch according to claim 9, characterized in that: The cover shell (24) is sleeved on the base (25).

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