CN212648097U - Spring sheet type micro-switch - Google Patents
Spring sheet type micro-switch Download PDFInfo
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- CN212648097U CN212648097U CN202021518884.7U CN202021518884U CN212648097U CN 212648097 U CN212648097 U CN 212648097U CN 202021518884 U CN202021518884 U CN 202021518884U CN 212648097 U CN212648097 U CN 212648097U
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Abstract
The utility model discloses a spring plate type micro-switch, which comprises a base, wherein the base is provided with a common terminal and an output terminal, one end of the common terminal and one end of the output terminal respectively extend out of the base, the other end and one side of the common terminal are respectively provided with a connecting block and a hanging platform which protrude out of the base, and the other end of the output terminal is provided with a stationary contact; the upper cover is connected with the base and forms an inner cavity; the pressing device penetrates through the upper cover, one end of the pressing device is arranged in the inner cavity, the other end of the pressing device is arranged outside the upper cover, a spring is arranged right below one end of the pressing device arranged in the inner cavity, and the base is provided with an installation column; the shell fragment, the base is located to the shell fragment, and one end is connected with the connecting block of sharing terminal and hanging the platform respectively to it is more firm with the contact nature of sharing terminal to make the shell fragment, the other end is connected or breaks off through pressing down the stationary contact with output terminal according to sincere, realizes switching on or cutting off of signal, and can not appear blocking and pausing phenomenon when pressing down according to sincere, improves the user and presses down and feel.
Description
Technical Field
The utility model belongs to the technical field of the switch technique and specifically relates to a miniature micro-gap switch of shell fragment formula.
Background
In the past, microswitches are widely applied to industrial control, for example, in products such as household appliances or automobiles, the microswitches are various, some microswitches on the market have various parts and complex processes, so that the microswitches are difficult to assemble, the microswitches also have the defects of unstable and reliable contact performance, high cost, short service life and the like, and meanwhile, when the microswitches are pressed, the stuck phenomenon can occur, so that the microswitches are not good in pressing hand feeling, therefore, the existing microswitches cannot meet the requirement of rapid industrial development, and the market competitiveness of enterprises is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an equipment is simple, and the contact performance is stable firm and can improve and press down the miniature micro-gap switch of shell fragment formula of feeling and life.
For solving the above technical problem, the utility model discloses can adopt following technical scheme to realize:
a leaf spring type micro-switch comprises: the base is provided with a common terminal and an output terminal, the output terminal is a normally open terminal or a normally closed terminal, one end of the common terminal and one end of the output terminal respectively extend out of the base, a connecting block and a hanging table protruding out of the base are respectively arranged at the other end and one side of the common terminal, and a static contact is arranged at the other end of the output terminal;
the upper cover is connected with the base and forms an inner cavity;
the pressing device penetrates through the upper cover, one end of the pressing device is arranged in the inner cavity, the other end of the pressing device is arranged outside the upper cover, a spring is arranged right below one end of the inner cavity, and the base is provided with an installation column for sleeving the spring;
the elastic sheet is arranged on the base, one end of the elastic sheet is connected with the connecting block and the hanging platform of the common terminal respectively, and the other end of the elastic sheet is connected or disconnected with the stationary contact of the output terminal by pressing the pressing body, so that the signal is switched on or switched off.
In one embodiment, when the output terminal is a normally open terminal, the elastic sheet comprises a connecting portion, a clamping portion, a bending portion, a spring portion and a contact portion which are integrally formed, the clamping portion is arranged on each of two sides of the connecting portion, the connecting portion is provided with a first bayonet, the connecting block is connected with the first bayonet, the clamping portion on one side is provided with a second bayonet matched with the hanging table, the spring portion is arranged on the same side of the other clamping portion, the contact portion is connected with the spring portion through the bending portion, the spring portion is provided with a protrusion and matched with one side of the pressing portion, and a movable contact point is arranged on the contact portion.
In one embodiment, one side of the pressing latch, which is matched with the protrusion, is an inclined surface, and the protrusion is pressed and released by the up-and-down sliding of the inclined surface, so that the movable contact of the contact part is connected with or disconnected from the fixed contact of the output terminal.
In one embodiment, when the output terminal is a normally closed terminal, the elastic sheet comprises a connecting portion, a clamping portion, a spring portion and a contact portion, the connecting portion, the clamping portion, the spring portion and the contact portion are integrally formed, the clamping portion is arranged on two sides of the connecting portion, the connecting portion is provided with a first bayonet, the connecting block is connected with the first bayonet, the clamping portion on one side is provided with a second bayonet matched with the hanging table, the spring portion is arranged on the same side of the other clamping portion, the contact portion is connected with the spring portion, the spring portion is provided with a protrusion matched with one side of the pressing portion, and a movable contact point is arranged on the contact portion.
In one embodiment, a protrusion is arranged on one side of the pressing latch, which is matched with the protrusion, and the protrusion is released and pressed by the vertical sliding of the protrusion, so that the movable contact of the contact part is disconnected or connected with the fixed contact of the output terminal.
In one embodiment, the two sides of the first bayonet are provided with connecting convex points, the connecting block is in interference connection with the connecting convex points, and the interference connection is adopted, so that the contact performance of the common terminal and the elastic sheet is more stable and reliable.
In one embodiment, the pressing latch is provided with a guide groove, the upper cover is provided with a guide strip matched with the guide groove, and the pressing latch slides up and down to be positioned through the guide groove and the guide strip, so that the phenomenon of deviation of the pressing latch during up-and-down movement is prevented.
In one embodiment, the upper cover is provided with a clamping groove, the base is provided with a clamping block, the clamping groove is matched with the clamping block, and the upper cover and the base are connected in a clamping mode through the clamping groove and the clamping block, so that the upper cover and the base are convenient and simple to disassemble and assemble.
In one embodiment, the miniature microswitch further comprises a sealing ring, one end of the sealing ring is connected with the upper cover in a sealing mode, and the other end of the sealing ring is clamped with a pressing latch arranged outside the upper cover to prevent water and dust of the elastic sheet type miniature microswitch.
The utility model has the advantages that: the spring plate type micro microswitch of the utility model is directly clamped into the base through the clamping part when being assembled, so that the assembly is simple and convenient, the spring plate is respectively connected with the connecting block and the hanging platform of the common terminal when being clamped into the base, the contact performance of the spring plate and the common terminal is stable and firm through double connection, and the phenomenon that the spring plate is taken off from the base can be prevented through the hanging platform; when the elastic sheet type micro-switch is switched on or switched off, the movable contact and the fixed contact are connected or separated only by pressing the pressing pawl; in addition, when the elastic sheet type micro microswitch is in a normally open state and the pressing pawl is pressed, the pressing hand feeling of the elastic sheet type micro microswitch can be improved because the side of the pressing pawl applying force to the bulge is an inclined plane and the direction of the interaction force of the elastic sheet and the pressing pawl is inclined upwards; finally, when the elastic sheet works, the bending part can deform under the action of the elastic pressing part and the movable contact, so that stress concentration between the bending part and the movable contact can be eliminated, and the service life of the elastic sheet type micro microswitch is prolonged.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a flip-chip micro-gap switch of the present invention;
FIG. 2 is a schematic view of a base structure of an embodiment of the spring-type micro switch of the present invention;
FIG. 3 is a schematic view of an upper cover structure of an embodiment of the spring plate type micro-gap switch of the present invention;
FIG. 4 is an exploded view of the embodiment of the spring micro-gap switch of the present invention;
FIG. 5 is a schematic view of a spring plate structure of the spring plate type micro-gap switch according to the embodiment of the present invention;
FIG. 6 is a schematic view of a pressing structure of an embodiment of the spring plate type micro-gap switch of the present invention;
FIG. 7 is a schematic view showing the connection of a base, a spring and a pressing device according to an embodiment of the present invention;
FIG. 8 is a cross-sectional view of the spring plate type micro-gap switch of the present invention;
FIG. 9 is an exploded view of a second embodiment of the spring micro switch of the present invention;
FIG. 10 is a schematic view of a second spring plate of the spring plate type micro-gap switch of the present invention;
FIG. 11 is a schematic view of a second pressing structure of an embodiment of the spring plate type micro-gap switch of the present invention;
FIG. 12 is a schematic view showing the connection between the second base, the spring and the pressing device according to the second embodiment of the present invention;
fig. 13 is a cross-sectional view of the second embodiment of the spring-loaded micro-gap switch of the present invention.
As shown in the attached drawings: 100. a base; 200. an upper cover; 300. pressing; 400. a spring plate; 500. a seal ring; 110. a common terminal; 120. an output terminal; 130. mounting a column; 140. a clamping block; 210. a guide strip; 220. a card slot; 310. a spring; 320. a bevel; 330. a guide groove; 340. a bump; 410. a connecting portion; 420. a clamping portion; 430. a bending part; 440. a spring pressing part; 450. a contact portion; 111. connecting blocks; 112. hanging a table; 121. a stationary contact; 411. a first bayonet; 412. connecting the salient points; 421. a second bayonet; 441. a protrusion; 451. and a movable contact.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following provides a detailed description of the product of the present invention with reference to the embodiments and the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1 to 8, a flip-chip micro switch includes a base 100, a common terminal 110 and an output terminal 120 are mounted on the base 100, the output terminal 120 is a normally open terminal, one end of the common terminal 110 and one end of the output terminal 120 respectively extend out of the base 100, a connecting block 111 and a hanging platform 112 protruding out of the base 100 are respectively disposed at the other end and one side of the common terminal 110, and a stationary contact 121 is disposed at the other end of the output terminal 120; an upper cover 200, wherein the upper cover 200 is connected with the base 100 and forms an inner cavity; the pressing device 300 penetrates through the upper cover 200, one end of the pressing device 300 is arranged in the inner cavity, the other end of the pressing device is arranged outside the upper cover 200, a spring 310 is arranged right below one end of the inner cavity of the pressing device 300, and the base 100 is provided with an installation column 130 for sleeving the spring 310; and the elastic sheet 400 is arranged on the base 100, one end of the elastic sheet 400 is respectively connected with the connecting block 111 and the hanging table 112 of the common terminal 110, and the other end of the elastic sheet is connected or disconnected with the static contact 121 of the output terminal 120 by pressing the pressing body 300, so that the signal is switched on or off.
In this embodiment, the output terminal 120 of the flip-chip micro-switch is set to be in a normally open state, specifically, when the flip-chip micro-switch is assembled, the flip-chip 400 is directly clamped into the base 100 and is simultaneously connected with the connecting block 111 and the hanging platform 112 of the common terminal 110, when the flip-chip micro-switch operates, only the pressing pawl 300 needs to be pressed, the pressing pawl 300 acts on the flip-chip 400, so that the flip-chip 400 is conducted with the output terminal 120, when a signal of the flip-chip micro-switch is cut off, only the pressing pawl 300 needs to be released, the pressing pawl 300 is reset through the spring 310 right below the pressing pawl 300, and when the signal is reset, the flip-chip 400 loses acting force, so as to be disconnected with the output terminal 120, thereby realizing the conduction or the cut-off of the signal of the flip-chip micro-switch; the connection block 111 and the hanging platform 112 can connect the elastic sheet 400 and the common terminal 110, so that the double-connection is realized, the contact between the elastic sheet 400 and the common terminal 110 is more stable and firm, and the hanging platform 112 can prevent the upward-falling phenomenon between the elastic sheet 400 and the common terminal 110 when the elastic sheet 400 is pressed, so that the firmness between the elastic sheet 400 and the common terminal 110 is improved.
Further, referring to fig. 5, the spring plate 400 includes a connecting portion 410, clamping portions 420, a bending portion 430, a biasing portion 440 and a contact portion 450, which are integrally formed, the clamping portions 420 are respectively disposed on two sides of the connecting portion 410, the connecting portion 410 is provided with a first bayonet 411, the connecting block 111 is connected to the first bayonet 411, the clamping portion 420 on one side is provided with a second bayonet 421 matched with the hanging platform 112, the biasing portion 440 is disposed on the same side of the other clamping portion 420, the contact portion 450 is connected to the biasing portion 440 through the bending portion 430, the biasing portion 440 is provided with a protrusion 441 and is matched with one side of the pressing portion 300, and the contact portion 450 is provided with a movable contact 451.
Meanwhile, referring to fig. 5, connection bumps 412 are respectively disposed on two sides of the first bayonet 411, and the connection block 111 is in interference connection with the connection bumps 412.
Specifically, when the elastic sheet 400 is assembled, the elastic sheet 400 is directly clamped on the base 100 through the clamping portions 420, the first bayonet 411 of the connecting portion 410 is connected with the connecting block 111, the connecting salient points 412 are simultaneously arranged on two inner sides of the first bayonet 411, the connecting salient points 412 are in interference connection with the connecting block 111, so that the firmness between the elastic sheet 400 and the common terminal 110 is improved, the second bayonet 421 of one clamping portion 420 is connected with the hanging platform 112, the stability between the elastic sheet 400 and the common terminal 110 is improved through double connection, the elastic pressing portion 440 is arranged on one side of the other clamping portion 420, the contact portion 450 is connected with the middle portion of the elastic pressing portion 440 through the bending portion 430, the protrusion 441 is arranged on the elastic pressing portion 440, when the micro-switch operates, the pressing portion 300 is pressed, one side of the pressing portion 300 acts on the protrusion 441 of the elastic pressing portion 440, and the protrusion 441 drives the contact portion 450 to move towards the output terminal 120, finally, the movable contact 451 of the contact part 450 is connected with the fixed contact 121 of the output terminal 120, so that the conduction of the elastic sheet type micro microswitch signal is realized; when the connection needs to be cut off, the pressing latch 300 only needs to be released, the pressing latch 300 is reset through the spring 310, the protrusion 441 of the elastic pressing part 440 loses acting force, the movable contact 451 of the contact part 450 is separated from the fixed contact 121 of the output terminal 120, and therefore the signal of the elastic sheet type micro-switch is cut off; the bending part 430 is adopted to connect the contact part 450 with the spring pressing part 440, so that stress between the movable contact 451 and the spring pressing part 440 on the contact part 450 after signal conduction can be eliminated, the number of times of spring pressing of the spring pressing part 440 and spring pressing effect are improved, the movable contact 451 of the contact part 450 is better connected with the fixed contact 121 of the output terminal 120, the service life of the spring piece 400 is prolonged, and finally the whole service life of the spring piece type micro-switch is prolonged.
Referring to fig. 6, the side of the pressing part 300 engaged with the protrusion 441 is an inclined surface 320, and the protrusion 441 is pressed and released by the up-and-down sliding of the inclined surface 320, so that the movable contact 451 of the contact part 450 is connected or disconnected with the stationary contact 121 of the output terminal 120. Specifically, during signal switching, the initial state of the flip-chip micro-switch is that the moving contact 451 of the contact part 450 is separated from the stationary contact 121 of the output terminal 120, the pressing part 300 is pressed to press the inclined surface 320 on one side of the pressing part 300 to the protrusion 441 of the pressing part 440, and the protrusion 441 is pressed by the inclined surface 320, so that the pressing part 440 moves towards the output terminal 120, and the pressing part 440 drives the contact part 450 to move until the moving contact 451 of the contact part 450 is connected with the stationary contact 121 of the output terminal 120, thereby conducting the signal; the pressing part 300 continues to be pressed down, the inclined surface 320 of the pressing part 300 drives the protrusion 441 of the pressing part 440 to deform, and at the moment, the bending part 430 deforms under the action of the pressing part 440 and the movable contact 451, so that stress concentration is eliminated, and the service life of the elastic sheet type micro microswitch is prolonged; when the signal is required to be cut off, the pressing part 300 is only required to be released, the pressing part 300 is reset through the spring 310, the elastic pressing part 440 loses the acting force of the pressing part and returns to the free position, and the movable contact 451 is separated from the fixed contact 121, so that the signal is cut off; when the pressing device 300 is pressed or released, the protrusion 441 is arc-shaped, and the side of the pressing device 300 applying force is the inclined surface 320, so that the pressing device 300 is not blocked when being pressed, and the pressing hand feeling of a user is improved.
Referring to fig. 3 and 6, in order to prevent the deviation of the pressing unit 300 when the pressing unit is moved down or released to reset, the guide groove 330 is formed in the pressing unit 300, the guide bar 210 is formed in the upper cover 200, the guide groove 330 is engaged with the guide bar 210, and the deviation of the pressing unit 300 when the pressing unit 300 is moved up and down is prevented by the guide groove 330 and the guide bar 210 when the pressing unit 300 is pressed or reset, thereby positioning the up and down sliding path of the pressing unit 300.
Referring to fig. 2 and 3, in order to facilitate the assembly and disassembly of the upper cover 200 and the base 100, the upper cover 200 is provided with a slot 220, the base 100 is provided with a block 140, and the slot 220 and the block 140 are engaged with each other, so that the assembly and disassembly of the upper cover 200 and the base 100 are convenient and simple.
Further, referring to fig. 8, the micro spring-type microswitch in this embodiment further includes a sealing ring 500, one end of the sealing ring 500 is connected to the upper cover 200 in a sealing manner, the other end of the sealing ring 500 is clamped to the pressing unit 300 disposed outside the upper cover 200, and the micro spring-type microswitch is subjected to waterproof and dustproof treatment through the sealing ring 500.
Example two:
the spring plate type micro microswitch in the embodiment is basically the same as the first embodiment, and the main difference is as follows: the output terminal 120 is a normally closed terminal. Specifically, referring to fig. 9 to 13, when the output terminal 120 is a normally closed terminal, the elastic sheet 400 includes a connecting portion 410, a clamping portion 420, a pressing portion 440 and a contact portion 450 which are integrally formed, the two sides of the connecting part 410 are respectively provided with a clamping part 420, the connecting part 410 is provided with a first bayonet 411, the connecting block 111 is connected with the first bayonet 411, the clamping part 420 at one side is provided with a second bayonet 421 matched with the hanging table 112, the spring part 440 is disposed on the same side of the other clamping part 420, the contact part 450 is connected with the spring part 440, the spring part 440 is provided with a protrusion 441, and is engaged with one side of the pressing latch 300, a moving contact 451 is provided on the contact portion 450, and a protrusion 340 is disposed on one side of the pressing latch 300 and engaged with the protrusion 441, and the protrusion 411 is released and pressed by the protrusion 340 sliding up and down, so that the movable contact 451 of the contact portion 450 is disconnected or connected with the fixed contact 121 of the output terminal 120.
Similarly, referring to fig. 10 and 12, when the output terminal 120 is a normally closed terminal, at this time, the elastic sheet 400 also includes the connecting portion 410, the clamping portion 420, the pressing portion 440 and the contact portion 450 which are integrally formed, when assembling, the elastic sheet 400 is clamped on the base 100 to be simultaneously connected with the connecting block 111 and the hanging platform 112 of the common terminal 110, the stability of the contact performance between the elastic sheet 400 and the common terminal 110 is improved through double connection, meanwhile, the upward-falling phenomenon of the elastic sheet 400 can be prevented through the hanging platform 112, when the elastic sheet type micro switch is operated, the initial state of the elastic sheet type micro switch is that the protrusion 340 on one side of the pressing portion 300 directly acts on the protrusion 441 of the pressing portion 440, so that the movable contact 451 of the contact portion 450 and the stationary contact 121 of the output terminal 120 maintain the connection state; when the signal of the spring-type micro-switch is cut off, the pressing part 300 is pressed to enable the pressing part 300 to move downwards, the protrusion 340 is separated from the protrusion 441 while moving, the protrusion 441 loses the acting force, and after the protrusion 441 loses the acting force, the pressing part 440 drives the contact part 450 to be far away from the output terminal 120, so that the movable contact 451 of the contact part 450 is separated from the fixed contact 121 of the output terminal 120, and the signal is cut off; when conduction is required, the pressing latch 300 is released, the pressing latch 300 is reset under the action of the spring 310, the protrusion 340 on the pressing latch 300 acts on the protrusion 441 of the pressing portion 440 again to apply force to the protrusion, the contact portion 450 moves towards the output terminal 120, the movable contact 451 of the contact portion 450 is connected with the fixed contact 121 of the output terminal 120, and finally conduction and disconnection of the spring-type micro switch are realized.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the art should understand that changes, modifications, and evolutions equivalent to those made by the above disclosed technical content without departing from the technical scope of the present invention are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (9)
1. A spring plate type micro-switch is characterized by comprising:
the base is provided with a common terminal and an output terminal, the output terminal is a normally open terminal or a normally closed terminal, one end of the common terminal and one end of the output terminal respectively extend out of the base, a connecting block and a hanging table protruding out of the base are respectively arranged at the other end and one side of the common terminal, and a static contact is arranged at the other end of the output terminal;
the upper cover is connected with the base and forms an inner cavity;
the pressing device penetrates through the upper cover, one end of the pressing device is arranged in the inner cavity, the other end of the pressing device is arranged outside the upper cover, a spring is arranged right below one end of the inner cavity, and the base is provided with an installation column for sleeving the spring;
the elastic sheet is arranged on the base, one end of the elastic sheet is connected with the connecting block and the hanging platform of the common terminal respectively, and the other end of the elastic sheet is connected or disconnected with the stationary contact of the output terminal by pressing the pressing body, so that the signal is switched on or switched off.
2. The flip-chip micro switch of claim 1, wherein: when output terminal is normally open terminal, the shell fragment includes integrated into one piece's connecting portion, clamping part, the portion of bending, plays splenium and contact site, the both sides of connecting portion are equipped with the clamping part respectively, connecting portion are equipped with first bayonet socket, connecting block and first bayonet coupling, wherein the clamping part of one side is equipped with and hangs platform matched with second bayonet socket, play splenium locates the homonymy of another clamping part, the contact site then is connected with play splenium through the portion of bending, play splenium is equipped with the arch to cooperate with one side according to sincere, be equipped with the movable contact on the contact site.
3. The flip-chip micro switch of claim 2, wherein: one side of the pressing part, which is matched with the bulge, is an inclined plane, and the bulge is pressed and released through the up-and-down sliding of the inclined plane, so that the movable contact of the contact part is connected with or disconnected from the fixed contact of the output terminal.
4. The flip-chip micro switch of claim 1, wherein: when output terminal is the normally closed terminal, the shell fragment includes integrated into one piece's connecting portion, clamping part, bullet splenium and contact site, the both sides of connecting portion are equipped with the clamping part respectively, connecting portion are equipped with first bayonet socket, connecting block and first bayonet connection, the clamping part of one side wherein is equipped with and hangs platform matched with second bayonet socket, the homonymy of another clamping part is then located to the bullet splenium, the contact site is connected with bullet splenium, bullet splenium is equipped with the arch to cooperate with one side according to sincere, be equipped with the movable contact on the contact site.
5. The flip-chip micro switch of claim 4, wherein: and a protrusion block is arranged on one side of the pressing part matched with the protrusion, and the protrusion is released and pressed by the up-and-down sliding of the protrusion block, so that the movable contact of the contact part is disconnected or connected with the fixed contact of the output terminal.
6. The flip-chip micro switch according to any one of claims 3 or 5, wherein: the two sides of the first bayonet are provided with connecting salient points, and the connecting block is in interference connection with the connecting salient points.
7. The flip-chip micro switch of claim 6, wherein: the pressing device is provided with a guide groove, and the upper cover is provided with a guide strip matched with the guide groove.
8. The flip-chip micro switch of claim 7, wherein: the upper cover is provided with a clamping groove, the base is provided with a clamping block, the clamping groove is matched with the clamping block, and the upper cover is connected with the base in a clamping mode through the clamping groove and the clamping block.
9. The flip-chip micro switch of claim 1, wherein: still include the sealing washer, sealing washer one end and upper cover sealing connection, the other end with set up the sincere joint of pressing in the upper cover outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021518884.7U CN212648097U (en) | 2020-07-28 | 2020-07-28 | Spring sheet type micro-switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021518884.7U CN212648097U (en) | 2020-07-28 | 2020-07-28 | Spring sheet type micro-switch |
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| CN212648097U true CN212648097U (en) | 2021-03-02 |
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| CN202021518884.7U Active CN212648097U (en) | 2020-07-28 | 2020-07-28 | Spring sheet type micro-switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114203474A (en) * | 2021-12-01 | 2022-03-18 | 钟连祥 | Sliding contact microswitch |
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2020
- 2020-07-28 CN CN202021518884.7U patent/CN212648097U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114203474A (en) * | 2021-12-01 | 2022-03-18 | 钟连祥 | Sliding contact microswitch |
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