Microswitch

Abstract

The utility model discloses a microswitch, which comprises a cover body, a button, an elastic piece and a base, the cover body is provided with an inner cavity, a first terminal and a second terminal are arranged in the inner cavity, the edge of the cover body is provided with a first external connection end and a second external connection end, and the first terminal, the second terminal and the first external connection end are conducted; the button is slidably mounted and exposed out of the cover body; the elastic piece is installed in the inner cavity and abuts against the button, the elastic piece is provided with an installation port corresponding to the first terminal, an elastic piece corresponding to the second terminal and a contact corresponding to the second external connection end, the edge of the installation port is connected with the first terminal, the elastic piece is connected with the second terminal, and the contact moves up and down relative to the second external connection end along with deformation of the elastic piece. Therefore, the conduction relation between the second terminal and the first terminal, the conduction relation between the second terminal and the first external connection terminal, and the conduction relation between the second terminal and the first external connection terminal are changed. The base is installed on the cover body to seal the inner cavity. By means of the arrangement, the elastic piece can be installed in the inner cavity of the cover body and then is installed on the bottom cover, due to the fact that the peripheral walls of the cover body have the limiting function, stability of the elastic piece after installation is guaranteed, the situation that the yield is not high due to deviation of the elastic piece is avoided, production efficiency is greatly improved, and meanwhile automatic production is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electronics, and specifically discloses a micro switch. Background Art

[0002] A micro switch is a contact mechanism with a small contact interval and a quick-acting component, and its switching action is carried out through a specified stroke and force. It is used for automatic control and safety protection in equipment that needs to frequently switch circuits, and is widely used in the fields of electronic equipment, instruments, power systems, electrical equipment, etc.

[0003] The terminals of the existing micro switches are usually arranged on the base. This makes it necessary to first install the metal elastic piece on the base to connect the terminals during the production process, and then install the cover on the base to complete the production and installation of the micro switch. However, since there is no structure on the base to limit the displacement of the metal elastic piece, when the metal elastic piece is installed on the base, the metal elastic piece is likely to shift, resulting in the cover not being able to be normally installed on the base, seriously affecting the yield rate, and requiring manual reinstallation, greatly reducing the production efficiency and being not conducive to automated production. Summary of the Utility Model

[0004] To solve at least one of the problems existing in the above-mentioned prior art, the utility model provides a micro switch. By embedding the terminals in the inner cavity of the cover, the metal elastic piece can be installed in the inner cavity of the cover and then the bottom cover can be installed. Since the peripheral walls of the cover have a limiting effect, the stability of the metal elastic piece after installation is ensured, and the problem of low yield rate caused by the shift of the metal elastic piece is avoided, thus greatly improving the production efficiency and facilitating automated production at the same time.

[0005] The technical solution adopted by the utility model to solve its problems is as follows:

[0006] A micro switch, comprising:

[0007] A cover body, the cover body has an inner cavity, a first terminal and a second terminal are arranged in the inner cavity, a first external connection end and a second external connection end are arranged at the edge of the cover body, and the first terminal, the second terminal and the first external connection end are electrically connected;

[0008] A button, the button is slidably installed and exposed outside the cover body;

[0009] An elastic piece, the elastic piece is installed in the inner cavity and abuts against the button. The elastic piece is provided with a mounting opening corresponding to the first terminal, a spring piece corresponding to the second terminal, and a contact point corresponding to the second external connection end. The edge of the mounting opening is connected to the first terminal, the spring piece is connected to the second terminal, and the contact point moves up and down relative to the second external connection end with the deformation of the spring piece to change the conduction relationship between the second terminal and the first terminal, the second terminal, and the first external connection end;

[0010] The base is installed on the cover to enclose the inner cavity.

[0011] In some embodiments of the present utility model, it further includes:

[0012] The conducting member is embedded in the cover, and the first terminal, the second terminal, and the first external connection end are all arranged on the conducting member.

[0013] In some more specific embodiments, the conducting member is provided with through holes corresponding to the first terminal and the second terminal, and the first terminal and the second terminal are arranged on opposite edges of the through holes.

[0014] In some embodiments of the present utility model, the cover is provided with a mounting hole, and the button is slidably fitted in the mounting hole and slidably mounted and exposed outside the cover.

[0015] In some more specific embodiments, the mounting hole is arranged corresponding to the space between the first terminal and the second terminal.

[0016] In some embodiments of the present utility model, the elastic member is formed with a movable hole corresponding to the second terminal, the elastic piece is arranged corresponding to the movable hole, and the elastic piece deforms relative to the movable hole.

[0017] In some embodiments of the present utility model, the base is provided with a clearance groove corresponding to the elastic piece to provide a margin space for the deformation of the elastic piece.

[0018] In some embodiments of the present utility model, a groove is provided at the edge of the cover corresponding to the second external connection end, and the second external connection end is detachably mounted in the groove.

[0019] In some more specific embodiments, the base is provided with a boss corresponding to the groove, and the boss abuts against the second external connection end to limit the up and down displacement of the second external connection end.

[0020] In some embodiments of the present utility model, a second buckling structure is arranged on the side of the base, a first buckling structure is arranged on the cover corresponding to the second buckling structure, and the base is mounted on the cover by buckling the second buckling structure with the first buckling structure; and / or, a limiting block is arranged on the side of the base, a limiting groove is arranged on the cover corresponding to the limiting block, and the limiting block is fitted in the limiting groove to limit the circumferential displacement of the base relative to the cover.

[0021] In summary, the micro switch provided by the present utility model has the following technical effects:

[0022] By arranging the first terminal and the second terminal in the inner cavity of the cover body, and installing the elastic member in the inner cavity of the cover body, the elastic member is provided with a mounting interface corresponding to the first terminal and a spring piece corresponding to the second terminal. The edge of the mounting interface is connected to the first terminal, and the spring piece is connected to the second terminal. Finally, the base is installed on the cover body to enclose the inner cavity of the cover body, so that the elastic member can be installed in the inner cavity of the cover body and then the bottom cover is installed. Due to the limiting effect of the peripheral wall of the cover body, the stability of the elastic member after installation is ensured, and the low yield rate caused by the offset of the elastic member is avoided, thereby greatly improving the production efficiency and facilitating automated production. Description of the Drawings

[0023] Figure 1 Stereogram of the first embodiment of the microswitch of the present invention;

[0024] Figure 2 First disassembled view of the first embodiment of the microswitch of the present invention;

[0025] Figure 3 Second disassembled view of the first embodiment of the microswitch of the present invention;

[0026] Figure 4 Cross-sectional view of the first embodiment of the microswitch of the present invention;

[0027] Figure 5 Stereogram of the second embodiment of the microswitch of the present invention;

[0028] Figure 6 Disassembled view of the second embodiment of the microswitch of the present invention;

[0029] Figure 7 Stereogram of the third embodiment of the microswitch of the present invention;

[0030] Figure 8 Disassembled view of the third embodiment of the microswitch of the present invention;

[0031] Figure 9 Stereogram of the fourth embodiment of the microswitch of the present invention;

[0032] Figure 10 Disassembled view of the fourth embodiment of the microswitch of the present invention.

[0033] Among them, the meanings of the reference numerals are as follows:

[0034] 1. Cover body; 11. Inner cavity; 12. Limit groove; 13. Mounting hole; 14. Groove; 15. First fastening structure; 2. Conductive part; 20. Through hole; 21. First terminal; 22. Second terminal; 23. First external connection end; 24. Second external connection end; 3. Button; 4. Elastic part; 40. Moving hole; 41. Mounting interface; 42. Elastic piece; 43. Contact point; 5. Base; 51. Second fastening structure; 52. Limit block; 53. Clearance groove; 54. Boss; 55. Mounting post. Detailed implementation manner

[0035] For better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that a specific feature, structure or characteristic related to the embodiment is included in at least one embodiment of the present utility model. Therefore, the appearances of "in one embodiment" or "in an embodiment" throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in any suitable manner in one or more embodiments.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation of the present utility model.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model.

[0039] First embodiment

[0040] According to Figures 1 to 4 As shown, the present utility model provides a microswitch, including: a cover body 1, a button 3, an elastic part 4, and a base 5.

[0041] Among them, the cover body 1 has an inner cavity 11. Inside the inner cavity 11, a first terminal 21 and a second terminal 22 are arranged. At the edge of the cover body 1, a first external connection end 23 and a second external connection end 24 are arranged. The first terminal 21, the second terminal 22 and the first external connection end 23 are electrically connected; the button 3 is slidably installed and exposed outside the cover body 1; the elastic member 4 is installed in the inner cavity 11 and abuts against the button 3. The elastic member 4 is provided with a mounting interface 41 corresponding to the first terminal 21, a spring piece 42 corresponding to the second terminal 22, and a contact 43 corresponding to the second external connection end 24. The edge of the mounting interface 41 is connected to the first terminal 21, the spring piece 42 is connected to the second terminal 22, and the contact 43 moves up and down relative to the second external connection end 24 with the deformation of the spring piece 42, so as to change the conduction relationship between the second terminal 22, the first terminal 21, the second terminal 22 and the first external connection end 23; in practice, the elastic member 4 is set as a metal elastic member 4, so that the second external connection end 24 is electrically connected to the first terminal 21, the second terminal 22 and the first external connection end 23 through the elastic member 4; the base 5 is installed on the cover body 1 to enclose the inner cavity 11; specifically, the specific assembly sequence can be in accordance with Figure 2 As shown, it is assembled from bottom to top in sequence, thus forming this microswitch.

[0042] Through the above settings, the elastic member 4 can be installed in the inner cavity 11 of the cover body 1 and then the bottom cover is installed. Since the peripheral walls of the cover body 1 have a limiting effect, the stability of the elastic member 4 after installation is ensured, and the low yield rate caused by the deviation of the elastic member 4 is avoided, thus greatly improving the production efficiency and facilitating automated production at the same time.

[0043] Specifically, this microswitch further includes: a conduction member 2. The conduction member 2 is embedded in the cover body 1. The first terminal 21, the second terminal 22 and the first external connection end 23 are all arranged on the conduction member 2; more specifically, the conduction member 2 is provided with through holes 20 corresponding to the first terminal 21 and the second terminal 22. The first terminal 21 and the second terminal 22 are arranged on opposite edges of the through holes 20, so that the button 3 passes through the through holes 20 for up and down sliding to realize the on-off of the microswitch.

[0044] Furthermore, the cover body 1 is provided with a mounting hole 13. The button 3 is slidably installed and exposed outside the cover body 1 by slidingly cooperating with the mounting hole 13; furthermore, the mounting hole 13 is arranged corresponding to the space between the first terminal 21 and the second terminal 22, so that the button 3 can pass through the through holes 20 along the mounting hole 13 for up and down sliding.

[0045] Preferably, the elastic member 4 is formed with a movable hole 40 corresponding to the second terminal 22. The spring piece 42 is arranged corresponding to the movable hole 40, and the spring piece 42 deforms relative to the movable hole 40; more preferably, the base 5 is provided with a clearance groove 53 corresponding to the spring piece 42 to provide a margin space for the deformation of the spring piece 42; in addition, a mounting post 55 is arranged on the side of the base 5 facing away from the elastic member 4, so that this microswitch can be installed in the device through the mounting post 55.

[0046] In practice, a groove 14 is provided at the edge of the cover body 1 corresponding to the second external terminal 24, and the second external terminal 24 is detachably connected to the groove 14; in order to make the second external terminal 24 more stable, a boss 54 is provided on the base 5 corresponding to the groove 14, and the boss 54 abuts against the second external terminal 24 to limit the up and down displacement of the second external terminal 24.

[0047] In practical applications, a second fastening structure 51 is provided on the side of the base 5, and a first fastening structure 15 is provided on the cover body 1 corresponding to the second fastening structure 51. The base 5 is installed on the cover body 1 by fastening the second fastening structure 51 and the first fastening structure 15. The second fastening structure 51 can be provided on the opposite sides of the base 5 and symmetrically arranged, and at least two second fastening structures 51 can be respectively provided on the opposite sides of the base 5; in this embodiment, the first fastening structure 15 includes a fastening groove, and the second fastening structure 51 includes fastening teeth; optionally, a limiting block 52 is provided on the side of the base 5, and a limiting groove 12 is provided on the cover body 1 corresponding to the limiting block 52. The limiting block 52 cooperates with the limiting groove 12 to limit the circumferential displacement of the base 5 relative to the cover body 1. The limiting block 52 can be provided on the opposite sides of the base 5 and symmetrically arranged, and at least one limiting block 52 can be respectively provided on the opposite sides of the base 5; furthermore, the limiting block 52 on one side of the base 5 is arranged between the two second fastening structures 51.

[0048] The working process of the above-mentioned microswitch is described as follows:

[0049] When a downward pressure is applied to the button 3, the button 3 moves downward to apply the pressure to the elastic member 4, causing the elastic deformation of the elastic piece 42 to bend downward, thereby driving the contact 43 to move downward to contact the second external terminal 24, so that the second external terminal 24 is electrically connected to the first terminal 21, the second terminal 22, and the first external terminal 23 through the elastic member 4; when the downward pressure on the button 3 is no longer applied, the elastic piece 42 returns to its original state due to the rebound effect, driving the contact 43 to move upward, so that the contact 43 is disconnected from the second external terminal 24, thereby disconnecting the second external terminal 24 from the first terminal 21, the second terminal 22, and the first external terminal 23, and pressing the button 3 to move the button 3 upward to reset.

[0050] Second Embodiment

[0051] According to Figures 5 to 6As shown, the present utility model provides another microswitch. The first fastening structure 15 thereof includes fastening teeth, the second fastening structure 51 includes a fastening groove, a convex bump for realizing point-contact conduction is provided on the second external connection end 54, and there are some differences in the shapes of the respective corresponding components. The structural principle of this embodiment is the same as that of the first embodiment. Therefore, for the parts not described herein, please refer to the first embodiment and will not be elaborated here.

[0052] Third Embodiment

[0053] According to Figures 7 to 8 As shown, the present utility model provides another microswitch. The first fastening structure 15 thereof includes fastening teeth, the second fastening structure 51 includes a fastening groove, a convex bump for realizing point-contact conduction is provided on the second external connection end 54, the first external connection end 23 and the second external connection end 24 extend from the left side surface of the cover body 1 to the outside, and there are some differences in the shapes of the respective corresponding components. The structural principle of this embodiment is the same as that of the first embodiment. Therefore, for the parts not described herein, please refer to the first embodiment and will not be elaborated here.

[0054] Fourth Embodiment

[0055] According to Figures 7 to 8 As shown, the present utility model provides another microswitch. The first fastening structure 15 thereof includes fastening teeth, the second fastening structure 51 includes a fastening groove, a convex bump for realizing point-contact conduction is provided on the second external connection end 54, the first external connection end 23 and the second external connection end 24 extend from the right side surface of the cover body 1 to the outside, and there are some differences in the shapes of the respective corresponding components. The structural principle of this embodiment is the same as that of the first embodiment. Therefore, for the parts not described herein, please refer to the first embodiment and will not be elaborated here.

[0056] Fifth Embodiment

[0057] Based on the same concept, the present utility model also provides an electronic device, which applies the microswitch as described in the above embodiments.

[0058] It should be noted that the embodiments in this specification are all described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts among the embodiments, reference can be made to each other.

[0059] Although the optional embodiments of the embodiments of the present utility model have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the optional embodiments and all changes and modifications falling within the scope of the embodiments of the present utility model.

[0060] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity from another, and do not necessarily require or imply any actual relationship or order between these entities. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that an article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such article or terminal device. Without more limitations, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the article or terminal device comprising the element.

[0061] The technical solutions provided by the present utility model have been introduced in detail above. Specific examples are used in this text to elaborate on the principles and implementation manners of the present utility model. At the same time, for those of ordinary skill in the art, according to the principles and implementation manners of the present utility model, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. Micro switch, characterized in that: include: A cover body (1), the cover body (1) having an inner cavity (11), a first terminal (21) and a second terminal (22) being arranged in the inner cavity (11), a first external connection terminal (23) and a second external connection terminal (24) being arranged at an edge of the cover body (1), the first terminal (21), the second terminal (22) and the first external connection terminal (23) being electrically connected; A button (3), the button (3) being slidably mounted and exposed on the cover body (1); an elastic member (4), the elastic member (4) being mounted in the inner cavity (11) and abutting against the button (3); the elastic member (4) being provided with a mounting interface (41) corresponding to the first terminal (21), a spring sheet (42) corresponding to the second terminal (22), and a contact point (43) corresponding to the second external connection end (24); an edge of the mounting interface (41) being in contact with the first terminal (21), the spring sheet (42) being in contact with the second terminal (22), and the contact point (43) being displaced up and down relative to the second external connection end (24) as the spring sheet (42) is deformed, so as to change the conduction relationship between the second terminal (22) and the first terminal (21), the second terminal (22), and the first external connection end (23); A base (5), wherein the base (5) is mounted on the cover body (1) to close the inner cavity (11).

2. The micro switch according to claim 1, characterized in that: Also includes: A conductive member (2), wherein the conductive member (2) is embedded in the cover body (1), and the first terminal (21), the second terminal (22) and the first external connection terminal (23) are all arranged on the conductive member (2).

3. The micro switch according to claim 2, characterized in that: The conductive member (2) is provided with a through hole (20) corresponding to the first terminal (21) and the second terminal (22); the first terminal (21) and the second terminal (22) are arranged at two opposite edges of the through hole (20).

4. The micro switch according to any one of claims 1 to 3, characterized in that: The cover body (1) is provided with a mounting hole (13), and the button (3) is slidably matched with the mounting hole (13) to be slidably mounted and exposed from the cover body (1).

5. The micro switch according to claim 4, characterized in that: The mounting hole (13) is arranged corresponding to the space between the first terminal (21) and the second terminal (22).

6. The micro switch according to any one of claims 1 to 3, characterized in that: The elastic member (4) is formed with a movable hole (40) corresponding to the second terminal (22); the spring sheet (42) is arranged corresponding to the movable hole (40); and the spring sheet (42) is deformed relative to the movable hole (40).

7. The micro switch according to any one of claims 1 to 3, characterized in that: The base (5) is provided with a clearance groove (53) corresponding to the spring sheet (42) to provide a margin space for the deformation of the spring sheet (42).

8. The micro switch according to any one of claims 1 to 3, characterized in that: A groove (14) is provided on the edge of the cover body (1) corresponding to the second external connection end (24), and the second external connection end (24) can be detachably mounted in the groove (14).

9. The micro switch according to claim 8, characterized in that: The base (5) is provided with a boss (54) corresponding to the groove (14), and the boss (54) abuts against the second external connection end (24) to limit the up and down displacement of the second external connection end (24).

10. The micro switch according to any one of claims 1 to 3, characterized in that: A second buckling structure (51) is provided on the side of the base (5), and the cover body (1) is provided with a first buckling structure (15) corresponding to the second buckling structure (51), and the base (5) is installed on the cover body (1) by buckling with the first buckling structure (15) via the second buckling structure (51); and / or a limiting block (52) is provided on the side of the base (5), and the cover body (1) is provided with a limiting groove (12) corresponding to the limiting block (52), and the limiting block (52) cooperates with the limiting groove (12) to limit the circumferential displacement of the base (5) relative to the cover body (1).

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