CN214797177U - Micro switch suitable for automatic change-over switch and automatic change-over switch - Google Patents
Micro switch suitable for automatic change-over switch and automatic change-over switch Download PDFInfo
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- CN214797177U CN214797177U CN202120764156.2U CN202120764156U CN214797177U CN 214797177 U CN214797177 U CN 214797177U CN 202120764156 U CN202120764156 U CN 202120764156U CN 214797177 U CN214797177 U CN 214797177U
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Abstract
A microswitch suitable for an automatic transfer switch comprises a switch shell, a first static contact piece, a second static contact piece and a movable contact piece assembly, wherein the first static contact piece and the second static contact piece are fixedly arranged in the switch shell; the movable contact piece assembly can move between a first position and a second position; when the movable contact piece component is positioned at the first position, the movable contact piece component keeps pressure contact with two sides of the first static contact piece but not with two sides of the second static contact piece; when the movable contact piece component slides from the first position to the second position, the movable contact piece component slides relative to the first fixed contact piece and keeps pressure contact with two sides of the first fixed contact piece, and when the movable contact piece component continues to slide, the movable contact piece component starts to slide contact with two sides of the second fixed contact piece; when the movable contact piece assembly is in the second position, the movable contact piece assembly is in pressure contact with both sides of the first stationary contact piece and in pressure contact with both sides of the second stationary contact piece. An automatic transfer switch comprising the microswitch.
Description
Technical Field
The present disclosure relates to a microswitch suitable for use in an automatic transfer switch. The present disclosure also relates to an automatic transfer switch that includes the microswitch.
Background
The microswitch is used as the position feedback of an Automatic Transfer Switch (ATS) and is used for logic control of ATS automatic transfer, and the application of the microswitch is very wide. In such applications, the microswitch is required to provide only on and off information, and not to have on and off capabilities. Thus, the micro-switch has a very small current rating, e.g., less than 5mA, which may be beneficial for power savings on the PCBA. However, there is a risk that the switch-on is unreliable for the microswitch. In contrast, manufacturers of micro switches have improved the micro switches by using gold-plated contacts, optimizing contact shapes, and the like, but in actual use, micro switches are not turned on.
Through analysis and research on the structure and application of the micro-switch in the prior art, the reasons for the failure of the non-conduction are found as follows:
1. the stroke of the on-off switching operation is sensitive (the fluctuation range is large), and the tolerance of a size chain is not easy to reach when the device is applied;
2. the contact pressure is related to the stroke of the conversion operation, so that the difficulty of tolerance control of the size chain is further increased when the device is applied;
3. in the case of an excessively fast operating speed, a failure of the switching structure (when the switch is switched off and on, the moving contact requires a spring plate which is not in contact with the static contact plate due to a certain failure or cannot reach a required contact pressure) is caused, such as:
moving the elastic piece contact fulcrum;
the spring contact deforms;
foreign matters are arranged between the moving contact and the static contact, and are brought in during manufacturing or generated during use;
one of the moving contact and the static contact has oxidation or surface non-conductive pollution, and is brought into or formed in the use environment during manufacturing.
SUMMERY OF THE UTILITY MODEL
To address one or more deficiencies in the prior art, a micro-switch adapted for use in an automatic transfer switch is presented according to one aspect of the present disclosure, the micro-switch including a switch housing, a first stationary contact fixedly disposed within an interior of the switch housing, a second stationary contact, and a movable contact assembly slidably mounted within the interior of the switch housing.
The movable contact assembly is movable between a first position and a second position.
When the movable contact piece assembly is in the first position, the movable contact piece assembly is held in pressure contact with both sides of the first stationary contact piece and is not held in pressure contact with both sides of the second stationary contact piece.
When the movable contact piece assembly slides from the first position toward the second position, the movable contact piece assembly slides relative to the first fixed contact piece and is in pressure contact with both sides of the first fixed contact piece, and when the movable contact piece assembly continues to slide, the movable contact piece assembly starts to be in sliding contact with both sides of the second fixed contact piece.
When the movable contact piece assembly is in the second position, the movable contact piece assembly is held in pressure contact with both sides of the first stationary contact piece and is held in pressure contact with both sides of the second stationary contact piece.
According to the above aspect of the present disclosure, the movable contact assembly includes a lever.
The shift lever is in sealing fit with the switch housing and forms a closed space with the switch housing to prevent external foreign matter from entering the inside of the switch housing.
The shifting lever can move relative to the switch shell so as to drive the movable contact assembly to move between a first position and a second position.
According to the above aspects of the present disclosure, the movable contact piece assembly further includes a first movable contact piece and a second movable contact piece fixedly mounted on the lever.
When the movable contact piece assembly is in the first position, the first movable contact piece and the second movable contact piece are respectively in pressure contact with two sides of the first static contact piece but not in pressure contact with two sides of the second static contact piece.
When the movable contact piece assembly slides from the first position to the second position, the first movable contact piece and the second movable contact piece slide relative to the first fixed contact piece and are kept in pressure contact with two sides of the first fixed contact piece, and when the movable contact piece assembly continues to slide, the first movable contact piece and the second movable contact piece respectively start to slide in contact with two sides of the second fixed contact piece.
When the movable contact piece assembly is in the second position, the first movable contact piece and the second movable contact piece are respectively in pressure contact with two sides of the first static contact piece and are respectively in pressure contact with two sides of the second static contact piece.
According to the above aspects of the present disclosure, the first movable contact piece arc portions are provided at both ends of the first movable contact piece.
And arc-shaped parts of the second movable contact piece are arranged at two ends of the second movable contact piece.
When the movable contact piece assembly is in the first position, the first movable contact arc-shaped part and the second movable contact arc-shaped part are respectively in pressure contact with two sides of the first static contact but not with two sides of the second static contact.
When the movable contact piece assembly is in the second position, the first movable contact piece arc-shaped part and the second movable contact piece arc-shaped part are respectively in pressure contact with two sides of the first static contact piece and are respectively in pressure contact with two sides of the second static contact piece.
According to the above aspects of the present disclosure, the switch case is provided with the case guide groove therein.
The shift lever is slidably disposed in the housing guide groove so as to be movable relative to the switch housing.
According to the above aspects of the present disclosure, a guide post is provided in the switch housing.
The guide post is located between the first movable contact piece and the second movable contact piece.
When the movable contact piece assembly slides from the first position to the second position, the guide post supports the first movable contact piece and the second movable contact piece, so that the guide post always keeps the arc-shaped part of the first movable contact piece and the arc-shaped part of the second movable contact piece in a spreading state, and the movable contact piece assembly cannot bear impact force from the second static contact piece when being overlapped with the second static contact piece.
When the movable contact piece assembly is overlapped with the second fixed contact piece, the guide post loses the support of the first movable contact piece and the second movable contact piece, so that the arc-shaped part of the first movable contact piece and the arc-shaped part of the second movable contact piece are in pressure contact with the second fixed contact piece, and then the arc-shaped part of the first movable contact piece and the arc-shaped part of the second movable contact piece can slide on the second fixed contact piece to remove poor-conductivity foreign matters on the surface of the second fixed contact piece.
According to the above aspects of the present disclosure, the micro switch further includes a return spring.
One end of the reset spring acts on the switch shell, and the other end of the reset spring acts on the shifting lever.
The return spring is arranged to apply a return force to the shift lever toward the first position or toward the second position.
According to the above aspects of the present disclosure, the microswitch further comprises a driving member.
A drive mating surface is provided on the drive component.
And the deflector rod is provided with a deflector rod matching surface.
Through the sliding fit of the driving matching surface and the shifting lever matching surface, the driving part can drive the shifting lever, and then the shifting lever drives the movable contact piece assembly to move between the first position and the second position.
According to the above aspects of the present disclosure, the movement direction of the driving part is perpendicular to the movement direction of the lever.
According to the above aspects of the present disclosure, the rotational movement of the driving part drives the lever.
In the microswitch according to the present disclosure, the dead lever and the switch housing cooperate to form a closed space, so that it is possible to prevent external foreign substances from entering the inside of the switch housing.
When the first and second movable contact pieces are in contact with the first and second fixed contact pieces, the deformation amount of the first and second movable contact pieces is determined, and thus the contact pressure is stable.
The closing process of the first and second movable contact pieces and the first and second fixed contact pieces is sliding under the contact pressure, so that foreign matters or non-conductive films can be eliminated. The first and second movable contacts are two independent pieces, thereby having four contact points.
Of course, it will be understood by those skilled in the art that each of the first and second movable contact pieces may have an H-shape, thereby having eight contact points.
According to the structure of the microswitch disclosed by the disclosure, for the microswitch provided with the return spring, after the driving is released, the switch can be automatically returned to the ON or OFF position.
The first movable contact piece, the second movable contact piece and the guide post are matched, so that the first movable contact piece, the second movable contact piece and the second static contact piece are overlapped without impact force at the moment, and the movable contact type motor is suitable for occasions with faster driving.
It follows that the microswitch according to the present disclosure can avoid many failure conditions of the prior art microswitch, and the contact point is four times as large as the prior art (greatly increasing the reliability of the contact), without the need for gold plated contacts (as with silver plated conductive sheets), thereby reducing the cost of the microswitch.
According to another aspect of the present disclosure, an automatic transfer switch is provided, which includes a micro switch as described above.
So that the manner in which the disclosure is made in detail herein can be better understood, and in which the contributions to the art may be better appreciated, the disclosure has been summarized rather broadly. There are, of course, embodiments of the disclosure that will be described below and which will form the subject matter of the claims appended hereto.
As such, those skilled in the art will appreciate that the conception upon which this disclosure is based may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present disclosure. It is important, therefore, that the appended claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present disclosure.
Drawings
The present disclosure will be better understood and its advantages will become more apparent to those skilled in the art from the following drawings. The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations and are not intended to limit the scope of the present disclosure.
Fig. 1-3 illustrate a state of a micro-switch according to the present disclosure moving from a first position to a second position, without including a guide post;
FIGS. 4 and 5 illustrate two setting positions of the return spring of the microswitch according to the present disclosure, respectively, without the guide post included;
6-8 illustrate the state of the micro-switch moving from a first position to a second position, including a guide post, according to the present disclosure;
FIGS. 9 and 10 illustrate two setting positions of the return spring of the microswitch according to the present disclosure, including the guide post, respectively;
figures 11 and 12 schematically illustrate two different forms of the first and second movable contact pieces, respectively, of a microswitch according to the present disclosure;
fig. 13 and 14 schematically illustrate the mating relationship of the drive component and the shifter lever according to the present disclosure.
Detailed Description
Specific embodiments according to the present disclosure are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a micro switch 1 adapted for an automatic transfer switch according to one embodiment of the present disclosure includes a switch case 2, a first stationary contact 3 fixedly provided in the interior of the switch case 2, a second stationary contact 4, and a movable contact assembly 5 slidably fitted in the interior of the switch case 2.
The movable contact assembly 5 is movable between a first position (fig. 1) and a second position (fig. 3).
As shown in fig. 1, when the movable contact piece assembly 5 is in the first position, the movable contact piece assembly 5 is held in pressure contact with both sides of the first fixed contact piece 3 and not with both sides of the second fixed contact piece 4.
As shown in fig. 2, when the movable contact piece assembly 5 slides (horizontally moves in fig. 2) from the first position toward the second position, the movable contact piece assembly 5 slides with respect to the first fixed contact piece 3 and is held in pressure contact with both sides of the first fixed contact piece 3, and when the movable contact piece assembly 5 continues to slide, the movable contact piece assembly 5 starts to slide in contact with both sides of the second fixed contact piece 4.
As shown in fig. 3, when the movable contact piece assembly 5 is in the second position, the movable contact piece assembly 5 is held in pressure contact with both sides of the first fixed contact piece 3 and with both sides of the second fixed contact piece 4.
According to the above-described embodiment of the present disclosure, the movable contact assembly 5 includes the lever 6.
The driver 6 is sealingly engaged with the switch housing 2 (e.g., by a seal) and forms a sealed space with the switch housing 2 to prevent foreign objects from entering the interior of the switch housing 2.
The shift lever 6 is movable relative to the switch housing 2 to move the movable contact assembly 5 between a first position and a second position.
According to the above embodiments of the present disclosure, the moving contact assembly 5 further includes a first moving contact 7 and a second moving contact 8 fixedly mounted on the lever 6.
As shown in fig. 1, when the movable contact piece assembly 5 is in the first position, the first movable contact piece 7 and the second movable contact piece 8 are respectively held in pressure contact with both sides (upper and lower sides) of the first fixed contact piece 3 and not with both sides (upper and lower sides) of the second fixed contact piece 4.
As shown in fig. 2, when the movable contact piece assembly 5 slides from the first position toward the second position, the first movable contact piece 7 and the second movable contact piece 8 slide with respect to the first fixed contact piece 3 and are held in pressure contact with both sides of the first fixed contact piece 3, and when the movable contact piece assembly 5 continues to slide, the first movable contact piece 7 and the second movable contact piece 8 start to slide in contact with both sides of the second fixed contact piece 4, respectively.
As shown in fig. 3, when the movable contact piece assembly 5 is in the second position, the first movable contact piece 7 and the second movable contact piece 8 are respectively held in pressure contact with both sides of the first fixed contact piece 3 and with both sides of the second fixed contact piece 4. At this time, the first fixed contact piece 3 and the second fixed contact piece 4 are electrically connected together through the first movable contact piece 7 and the second movable contact piece 8.
According to the above-described respective embodiments of the present disclosure, as shown in fig. 1 to 3, the first movable contact piece arc portions 7-1 are provided at both ends of the first movable contact piece 7.
And second movable contact piece arc-shaped parts 8-1 are arranged at two ends of the second movable contact piece 8.
As shown in fig. 1, when the movable contact piece assembly 5 is in the first position, the first movable contact piece arc portion 7-1 and the second movable contact piece arc portion 8-1 are respectively held in pressure contact with both sides of the first fixed contact piece 3 and not with both sides of the second fixed contact piece 4.
In fig. 2, the first movable contact arc portion 7-1 and the second movable contact arc portion 8-1 are shown to come into contact with the end portion of the second stationary contact 4 together, and this structure makes smooth contact friction between them.
As shown in fig. 3, when the movable contact piece assembly 5 is in the second position, the first movable contact piece arc portion 7-1 and the second movable contact piece arc portion 8-1 are held in pressure contact with both sides of the first fixed contact piece 3 and with both sides of the second fixed contact piece 4, respectively.
According to the above-described respective embodiments of the present disclosure, the housing guide groove 2-1 is provided in the switch housing 2.
The shift lever 6 is slidably disposed in the housing guide groove 2-1 so as to be movable relative to the switch housing 2.
According to the above-described respective embodiments of the present disclosure, as shown in fig. 6 to 8, a guide post 9 is provided in the switch case 2.
The guide post 9 is located between the first movable contact piece 7 and the second movable contact piece 8.
As shown in fig. 6 to 7, when the movable contact piece assembly 5 slides from the first position toward the second position, the guide post 9 supports the first movable contact piece 7 and the second movable contact piece 8, so that the guide post 9 always holds the first movable contact piece arc portion 7-1 and the second movable contact piece arc portion 8-1 in a spread state, thereby making the movable contact piece assembly 5 not to receive an impact force from the second stationary contact piece 4 when it starts to overlap with the second stationary contact piece 4.
As shown in fig. 8, when the movable contact piece assembly 5 overlaps the second fixed contact piece 4, the guide post 9 loses support of the first movable contact piece 7 and the second movable contact piece 8, so that the first movable contact piece arc-shaped portion 7-1 and the second movable contact piece arc-shaped portion 8-1 are brought into pressure contact with the second fixed contact piece 4, and then the first movable contact piece arc-shaped portion 7-1 and the second movable contact piece arc-shaped portion 8-1 can slide on the second fixed contact piece 4 to remove foreign matter having poor conduction on the surface of the second fixed contact piece 4.
According to the above-described various embodiments of the present disclosure, as shown in fig. 4, 5, 9, and 10, the micro switch further includes a return spring 10.
One end 10-1 of the return spring 10 acts on the switch shell, and the other end 10-2 of the return spring 10 acts on the shift lever 6.
The return spring 10 is arranged to apply a return force to the shift lever 6 towards the first position (as shown in fig. 5 and 10) or towards the second position (as shown in fig. 4 and 9).
According to the above-described various embodiments of the present disclosure, as shown in fig. 13 and 14, the micro switch further includes the driving part 11.
A drive mating surface 11-1 is provided on the drive member 11.
The deflector rod 6 is provided with a deflector rod matching surface 6-1.
Fig. 13 and 14 only schematically show the matching relationship between the driving part 11 and the shift lever 6, wherein the driving part 11 can drive the shift lever 6 by the sliding fit between the driving matching surface 11-1 and the shift lever matching surface 6-1, and the shift lever 6 drives the movable contact assembly 5 to move between the first position and the second position.
According to the above embodiments of the present disclosure, the moving direction of the driving part 11 is perpendicular to the moving direction of the shift lever 6.
According to the above embodiments of the present disclosure, the rotation of the driving member 11 (not shown), such as the rotation of a potentiometer, drives the shift lever 6, and the shift lever 6 drives the movable contact assembly 5 to move between the first position and the second position.
In the microswitch according to the present disclosure, the dead lever 6 forms a closed space in cooperation with the switch case 2, so that it is possible to prevent external foreign substances from entering the inside of the switch case 2.
In the microswitch according to the present disclosure, when the first and second movable contact pieces are brought into contact with the first and second stationary contact pieces, the amount of deformation of the first and second movable contact pieces is determined, and thus the contact pressure is stable.
The closing process of the first and second movable contact pieces and the first and second fixed contact pieces is sliding under the contact pressure, so that foreign matters or non-conductive films on each other can be eliminated.
Fig. 11 and 12 schematically illustrate two different forms of the first and second movable contact pieces of the micro switch according to the present disclosure, respectively, wherein the first and second movable contact pieces are two separate pieces so as to have four contact points (as shown in fig. 11, wherein the first movable contact piece arc portion 7-1 and the second movable contact piece arc portion 8-1 are omitted for simplicity).
Of course, it will be understood by those skilled in the art that each of the first and second movable contact pieces may have an H-shape so as to have eight contact points (as shown in fig. 12, in which the first movable contact piece arc portion 7-1 and the second movable contact piece arc portion 8-1 are omitted for simplicity).
According to the structure of the microswitch of the present disclosure, in the microswitch 1 equipped with the return spring 10, the switch is automatically returned to the ON or OFF position after the drive is released.
The cooperation of the first and second movable contact pieces and the guide post 9 can ensure that the first and second movable contact pieces and the second static contact piece 4 have no impact force at the moment of overlapping, thereby being suitable for occasions with faster driving.
It follows that the microswitch according to the present disclosure can avoid many failure conditions of the prior art microswitches and the contact points are four or eight times (greatly increasing the reliability of the contact) the prior art, without the need for gold plated contacts (as with silver plated conductive sheets), thereby reducing the cost of the microswitch.
The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the embodiments.
Even though particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of the various embodiments. In fact, many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. Although each dependent claim listed below may depend directly on only one claim, the disclosure of various embodiments includes each dependent claim in combination with every other claim in the claim set.
No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more items, and may be used interchangeably with "one or more". Further, as used herein, the article "the" is intended to include the incorporation of one or more items referenced by the article "the" and may be used interchangeably with "one or more". Further, as used herein, the term "set" is intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.) and may be used interchangeably with "one or more". Where only one item is intended, the phrase "only one item" or similar language is used. In addition, as used herein, the term "having," variants thereof, and the like are intended to be open-ended terms. Further, the phrase "based on" is intended to mean "based, at least in part, on" unless explicitly stated otherwise. In addition, as used herein, the term "or" when used in series is intended to be inclusive and may be used interchangeably with "and/or" unless specifically stated otherwise (e.g., if used in conjunction with "or" only one of ").
Claims (11)
1. A microswitch suitable for an automatic transfer switch is characterized in that,
the microswitch comprises a switch shell, a first static contact piece, a second static contact piece and a movable contact piece assembly, wherein the first static contact piece and the second static contact piece are fixedly arranged in the switch shell;
the movable contact piece assembly can move between a first position and a second position;
when the movable contact piece assembly is in the first position, the movable contact piece assembly is in pressure contact with two sides of the first static contact piece but not in pressure contact with two sides of the second static contact piece;
when the movable contact piece assembly slides from the first position to the second position, the movable contact piece assembly slides relative to the first fixed contact piece and keeps pressure contact with two sides of the first fixed contact piece, and when the movable contact piece assembly continues to slide, the movable contact piece assembly starts to slide contact with two sides of the second fixed contact piece;
when the movable contact piece assembly is in the second position, the movable contact piece assembly is held in pressure contact with both sides of the first stationary contact piece and is held in pressure contact with both sides of the second stationary contact piece.
2. The microswitch of claim 1,
the movable contact spring assembly comprises a deflector rod;
the deflector rod is in sealing fit with the switch shell and forms a closed space with the switch shell so as to prevent external foreign matters from entering the interior of the switch shell;
the shifting lever can move relative to the switch shell so as to drive the movable contact assembly to move between a first position and a second position.
3. The microswitch of claim 2,
the movable contact piece assembly further comprises a first movable contact piece and a second movable contact piece which are fixedly arranged on the shifting lever;
when the movable contact piece assembly is in the first position, the first movable contact piece and the second movable contact piece are respectively in pressure contact with two sides of the first static contact piece but not in pressure contact with two sides of the second static contact piece;
when the movable contact piece assembly slides from the first position to the second position, the first movable contact piece and the second movable contact piece slide relative to the first fixed contact piece and are kept in pressure contact with two sides of the first fixed contact piece, and when the movable contact piece assembly continues to slide, the first movable contact piece and the second movable contact piece respectively start to be in sliding contact with two sides of the second fixed contact piece;
when the movable contact piece assembly is in the second position, the first movable contact piece and the second movable contact piece are respectively in pressure contact with two sides of the first static contact piece and are respectively in pressure contact with two sides of the second static contact piece.
4. The microswitch of claim 3,
the two ends of the first movable contact piece are provided with a first movable contact piece arc part;
two ends of the second movable contact piece are provided with second movable contact piece arc parts;
when the movable contact piece assembly is in the first position, the arc-shaped part of the first movable contact piece and the arc-shaped part of the second movable contact piece are respectively in pressure contact with two sides of the first static contact piece but not in pressure contact with two sides of the second static contact piece;
when the movable contact piece assembly is in the second position, the first movable contact piece arc-shaped part and the second movable contact piece arc-shaped part are respectively in pressure contact with two sides of the first static contact piece and are respectively in pressure contact with two sides of the second static contact piece.
5. The microswitch of claim 3,
a housing guide groove is provided in the switch housing;
the shift lever is slidably disposed in the housing guide groove so as to be movable relative to the switch housing.
6. The microswitch of claim 4,
a guide post is arranged in the switch shell;
the guide post is positioned between the first movable contact piece and the second movable contact piece;
when the movable contact piece assembly slides from the first position to the second position, the guide post supports the first movable contact piece and the second movable contact piece, so that the guide post always keeps the arc-shaped part of the first movable contact piece and the arc-shaped part of the second movable contact piece in a spreading state, and the movable contact piece assembly cannot bear the impact force from the second static contact piece when being overlapped with the second static contact piece;
when the movable contact piece assembly is overlapped with the second fixed contact piece, the guide post loses the support of the first movable contact piece and the second movable contact piece, so that the arc-shaped part of the first movable contact piece and the arc-shaped part of the second movable contact piece are in pressure contact with the second fixed contact piece, and then the arc-shaped part of the first movable contact piece and the arc-shaped part of the second movable contact piece can slide on the second fixed contact piece to remove poor-conductivity foreign matters on the surface of the second fixed contact piece.
7. The microswitch of claim 4,
the micro switch also comprises a return spring;
one end of the reset spring acts on the switch shell, and the other end of the reset spring acts on the deflector rod;
the return spring is arranged to apply a return force to the shift lever toward the first position or toward the second position.
8. The microswitch of claim 2,
the microswitch also comprises a driving part;
a drive mating surface is provided on the drive component;
a deflector rod matching surface is arranged on the deflector rod;
through the sliding fit of the driving matching surface and the shifting lever matching surface, the driving part can drive the shifting lever, and then the shifting lever drives the movable contact piece assembly to move between the first position and the second position.
9. The microswitch of claim 8,
the moving direction of the driving part is vertical to the moving direction of the shifting lever.
10. The microswitch of claim 8,
the rotary motion of the driving part drives the shift lever.
11. An automatic transfer switch, characterized in that it comprises a microswitch according to one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120764156.2U CN214797177U (en) | 2021-04-14 | 2021-04-14 | Micro switch suitable for automatic change-over switch and automatic change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120764156.2U CN214797177U (en) | 2021-04-14 | 2021-04-14 | Micro switch suitable for automatic change-over switch and automatic change-over switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214797177U true CN214797177U (en) | 2021-11-19 |
Family
ID=78687081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120764156.2U Active CN214797177U (en) | 2021-04-14 | 2021-04-14 | Micro switch suitable for automatic change-over switch and automatic change-over switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214797177U (en) |
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2021
- 2021-04-14 CN CN202120764156.2U patent/CN214797177U/en active Active
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