CN212625398U - A indicator and contactor for indicateing operating condition of contactor - Google Patents
A indicator and contactor for indicateing operating condition of contactor Download PDFInfo
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- CN212625398U CN212625398U CN202021409544.0U CN202021409544U CN212625398U CN 212625398 U CN212625398 U CN 212625398U CN 202021409544 U CN202021409544 U CN 202021409544U CN 212625398 U CN212625398 U CN 212625398U
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- contactor
- indicator
- shaft
- iron core
- movable contact
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Abstract
An indicator for indicating an operating state of a contactor, the indicator comprising a rotating lever shaft; one end of the rotating rod shaft is connected with the movable iron core of the contactor through the main shaft; the other end of the rotating rod shaft is pivotally connected to the shell of the contactor through a rotating shaft; the linear motion of the movable iron core can drive the movable contact support of the contactor to move linearly, so that the movable contact arranged on the movable contact support moves between a closed position and an open position; the linear motion of the movable iron core can drive the rotary rod shaft to rotate through the main shaft; when the movable contact is in a closed position, a first indicating mark arranged on an indicating cantilever of the rotating rod shaft can be seen from the outside of the shell; when the movable contact is in the open position, a second indicator mark arranged on the indicating cantilever of the rotating lever shaft can be seen from the outside of the shell. A contactor comprising an indicator as described above.
Description
Technical Field
The present disclosure relates to an indicator for indicating an operating state of a contactor. The present disclosure also relates to a contactor comprising an indicator as described above.
Background
The contactor is a component for controlling the connection and disconnection of a motor or other loads. When commissioning a device, a user typically needs to know whether the contactor is in an engaged (closed) state or an open (open) state.
In the prior art, when the contactor is closed, the moving part (such as a moving contact support) moves downwards, and when the contactor is opened, the moving part returns to the upper position. However, the user can determine whether the contactor is operated only by the movement of the moving member. In the rest state, it is not explicitly indicated whether the contactor is in the closed state or in the open state.
In the existing contactor indication, because the indication component (movable contact support) is consistent with the movement direction of the contactor, the movement state of the contactor can be guessed only by different heights of the movement component. But there is no explicit indication of which height corresponds to which state. For intermediate states between the closed state and the open state, it is difficult to judge by indicating the height of the member.
Contactors are generally divided into two sections: one part is a contact system, and the other part is an electromagnetic system consisting of coil iron cores. Existing contactors typically have an electromagnetic system located below the contactor and a contact system located above the contactor. The moving contact support is a moving part which can move along with the movement of the contactor. Since it is located above the contactor, it is relatively easy to indicate the status of the contactor. Therefore, most contactors on the market use a movable contact support to indicate the state of the contactor.
SUMMERY OF THE UTILITY MODEL
In the solution according to the present disclosure, in order to improve the performance of the contactor and facilitate the wiring and maintenance for the user, the contact system of the contactor is placed on the bottom of the contactor, and the electromagnetic system including the core and the coil is placed on the upper portion of the contactor. Since the electromagnetic system is a non-moving part fixed with respect to the housing, it is difficult to indicate the moving state of the contactor at the upper portion of the contactor.
In the solution according to the present disclosure, the linear motion of the contact system in the bottom of the contactor is converted into a rotational motion by rotating the lever shaft, thereby enabling the status of the contactor to be indicated by rotating the lever shaft.
To address one or more deficiencies in the prior art, an indicator for indicating an operating state of a contactor is presented according to one aspect of the present disclosure.
The indicator includes a rotating shaft.
One end of the rotating rod shaft is connected with the movable iron core of the contactor through the main shaft.
The other end of the rotating rod shaft is pivotally connected to the housing of the contactor through a rotating shaft.
The linear motion of the movable iron core can drive the linear motion of a movable contact support of the contactor, so that a movable contact arranged on the movable contact support moves between a closed position and an open position.
The linear motion of the movable iron core can drive the rotary rod shaft to rotate through the main shaft.
When the movable contact is in the closed position, a first indicator mark arranged on an indicating cantilever of the rotating lever shaft can be seen from the outside of the shell.
When the movable contact is in the open position, a second indicator mark arranged on the indicating cantilever of the rotating lever shaft can be seen from the outside of the shell.
According to the above aspect of the present disclosure, a transparent window is provided on the housing of the contactor.
When the movable contact is in the closed position, the first indicating mark is displayed in the transparent window.
When the movable contact is in the open position, the second indication mark is displayed in the transparent window.
According to the above aspects of the present disclosure, the first indicator mark has a first color.
The second indicator mark has a second color different from the first color.
When the movable contact is in the closed position, the first color is displayed in the transparent window.
When the movable contact is in the open position, the second color is displayed in the transparent window.
According to the above aspects of the present disclosure, the rotary lever shaft includes a lever shaft base, a lever shaft connecting portion, and the indicating boom.
The lever shaft connecting portion is formed to extend in a first direction from both ends of the lever shaft base.
The indicating cantilever is formed to extend in a second direction from one of the ends of the lever shaft base.
The first direction is substantially perpendicular to the second direction.
According to the above aspects of the present disclosure, a rotation shaft through hole is provided on the spindle base.
The rotating shaft penetrates through the rotating shaft through hole.
A spindle through hole is provided in the lever shaft connecting portion.
The main shaft penetrates through the main shaft through hole.
An operating tool recess is provided between the first and second indicator marks of the indicator boom.
According to the above aspects of the present disclosure, a moment arm of the groove to the rotating shaft is greater than a moment arm of the main shaft to the rotating shaft.
The present disclosure converts a linear motion into a rotation by a rotating lever shaft, by which an indicating swing arm can transmit the state of a contactor to above the contactor. The status of the contactor is indicated unambiguously by indicating a difference in the indication mark and the indication colour on the cantilever.
According to another aspect of the present disclosure, a contactor is presented that includes a contact system and an electromagnetic system.
The contact system is arranged at the bottom of the contactor and the electromagnetic system is arranged at the upper part of the contactor.
The contactor further comprises an indicator as described above.
According to another aspect of the disclosure, the contact system includes a movable contact, a stationary contact, and a movable contact support.
The moving contact support bears the moving contact.
The electromagnetic system comprises a movable iron core, a static iron core and an electromagnetic coil.
When the electromagnetic coil is electrified, a magnetic field can be generated between the movable iron core and the static iron core, the movable iron core can overcome the counter force of a counter spring arranged in a contactor shell and is attracted by the static iron core to move until the movable iron core and the static iron core are completely closed, the movable contact support can be driven by the movable iron core to move, and the movable contact support drives the movable contact to move together until the movable contact and the static contact are closed.
According to another aspect of the disclosure, the contactor further comprises a flip cover.
When manual operation is required, the flip cover is opened, and then an operation tool is inserted into the operation tool groove to rotate the rotary rod shaft of the indicator.
When debugging equipment, a customer usually operates the contactor manually in a state that the contactor is not electrified, and forcibly closes the contactor. Since the moving direction of the moving contact support and the moving direction of the contactor are consistent, the moving contact support and the contactor generally need the same force as the counter force to close. For the contactor with a small current gear, the contactor is good to operate manually due to small counter force. However, in the case of a contactor with a large current level, the reaction force is usually very large, and manual operation becomes particularly difficult. According to the present disclosure, the contactor can be manually operated with less force since the linear motion is converted into rotational motion and through different arm lengths.
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. 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.
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 illustrates a contactor according to the present disclosure including an indicator for indicating an operational status of the contactor;
FIG. 2 illustrates an indicator according to the present disclosure;
figure 3 illustrates a transparent window provided on a housing of a contactor according to the present disclosure;
fig. 4 illustrates the operating tool recess on the indicating arm exposed after opening the flip cover 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, an indicator for indicating an operation state of a contactor 1 is proposed according to an embodiment of the present disclosure.
The indicator comprises a rotary shaft 2.
One end of the rotating rod shaft 2 is connected with a movable iron core 5 of the contactor 1 through a main shaft 3.
The other end of the rotating shaft 2 is pivotally connected to the housing 6 of the contactor 1 via a rotating shaft 4.
The linear motion of the movable iron core 5 drives the movable contact support 7 of the contactor 1 to perform a linear motion, so that the movable contact 8 mounted on the movable contact support 7 moves between a closed position and an open position (as shown in fig. 1).
The linear motion of the movable iron core 5 also drives the rotary rod shaft 2 to rotate around the rotating shaft 4 through the main shaft 3.
When the movable contact 8 is in the closed position, a first indicator 2-1-1 arranged on the indicating cantilever 2-1 of the rotary lever shaft 2 can be seen from the outside of the housing 6.
When the movable contact 8 is in the open position, the second indicator 2-1-2 arranged on the indicating cantilever 2-1 of the rotary lever shaft 2 can be seen from the outside of the housing 6.
The first indicator 2-1-1 is different from the second indicator 2-1-2.
According to the above-described embodiment of the present disclosure, as shown in fig. 3, a transparent window 6-1 is provided on the housing 6 of the contactor 1.
When the movable contact 8 is in the closed position, the first indicating mark 2-1-1 is displayed in the transparent window 6-1.
When the movable contact 8 is in the open position, the second indicating mark 2-1-2 is displayed in the transparent window 6-1.
According to the above various embodiments of the present disclosure, the first indicator 2-1-1 has a first color.
The second indicator 2-1-2 has a second color different from the first color.
When the movable contact 8 is in the closed position, the first color is displayed in the transparent window 6-1.
When the movable contact 8 is in the open position, the second color is displayed in the transparent window 6-1.
According to the above-mentioned embodiments of the present disclosure, as shown in fig. 2, the rotating shaft 2 includes a shaft base 2-2, a shaft connection 2-3, and the indicating boom 2-1.
The spindle connection portions 2-3 are formed to extend in a first direction from both ends of the spindle base portion 2-2, respectively. In fig. 2 two bar connections 2-3 are shown.
As shown in fig. 2, a reinforcing rib 2-3-2 is further provided at the connection between the rod shaft connection portion 2-3 and the rod shaft base portion 2-2.
The lever shaft connection 2-3 and the lever shaft base 2-2 are configured in a U shape.
The indicating cantilever 2-1 is formed to extend in a second direction from one of the ends of the lever shaft base 2-2.
The first direction is substantially perpendicular to the second direction. That is, the indicating boom 2-1 is substantially L-shaped with one of the bar-shaft connections 2-3.
According to the above embodiments of the present disclosure, a rotation shaft through hole 2-2-1 is provided on the lever shaft base 2-2.
The rotating shaft 4 penetrates through the rotating shaft through hole 2-2-1.
The rod shaft connecting part 2-3 is provided with a main shaft through hole 2-3-1.
The main shaft 3 penetrates through the main shaft through hole 2-3-1.
An operating tool recess 2-1-3 is provided between said first index mark 2-1-1 and said second index mark 2-1-2 of said indicating arm.
According to the above embodiments of the present disclosure, the moment arm of the operating tool recess 2-1-3 to the rotation shaft 4 is larger than the moment arm of the main shaft 3 to the rotation shaft 4.
The present disclosure converts a linear motion into a rotation by a rotating lever shaft, by which a pointing swing arm 2-1 can transmit the state of a contactor to above the contactor. The status of the contactor is clearly indicated by indicating the difference in the indication mark and the indication color on the cantilever 2-1.
According to another embodiment of the present disclosure, a contactor 1 is proposed, the contactor 1 comprising a contact system and an electromagnetic system.
The contact system is arranged at the bottom of the contactor 1 and the electromagnetic system is arranged at the upper part of the contactor 1.
The contactor 1 further comprises an indicator as described above.
According to another embodiment of the present disclosure, as shown in fig. 1, the contact system includes a movable contact 8, a stationary contact 9 and a movable contact support 7.
The movable contact support 7 carries the movable contact 8.
The electromagnetic system comprises a movable iron core 5, a static iron core 10 and an electromagnetic coil 11.
When the electromagnetic coil 11 is energized, because a magnetic field is generated between the movable iron core 5 and the static iron core 10, the movable iron core 5 overcomes the counter force of a counter spring 12 arranged in the contactor housing and is attracted by the static iron core 10 to move until the movable iron core 5 and the static iron core 10 are completely closed, and the movable contact support 7 is driven by the movable iron core 5 to move and drives the movable contact 8 to move together until the movable contact 8 and the static contact 9 are closed.
According to the above-mentioned another embodiment of the present disclosure, the contactor 1 further includes a flip cover 13.
When manual operation is required, as shown in fig. 4, the lid 13 is opened, and then an operation tool (not shown, such as a straight screwdriver) is inserted into the operation tool recess 2-1-3 to rotate the rotary shaft 2.
When debugging equipment, a customer usually operates the contactor manually in a state that the contactor is not electrified, and forcibly closes the contactor. Since the moving direction of the moving contact support and the moving direction of the contactor are consistent, the moving contact support and the contactor generally need the same force as the counter force to close. For the contactor with a small current gear, the contactor is good to operate manually due to small counter force. However, in the case of a contactor with a large current level, the reaction force is usually very large, and manual operation becomes particularly difficult. According to the present disclosure, the contactor can be manually operated with less force since the linear motion is converted into rotational motion and through different arm lengths.
While the disclosure has been described in the specification and drawings with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the disclosure as defined in the claims. Moreover, the combination and arrangement of features, elements and/or functions between specific embodiments herein is clearly apparent and thus, in light of this disclosure, one skilled in the art will appreciate that features, elements and/or functions of an embodiment may be incorporated into another specific embodiment as appropriate, unless described otherwise, above. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the disclosure without departing from the essential scope thereof. Therefore, it is intended that the disclosure not be limited to the particular embodiment illustrated by the drawings and described in the specification as the best mode presently contemplated for carrying out this disclosure, but that the disclosure will include all embodiments falling within the scope of the foregoing description and the appended claims.
Claims (9)
1. An indicator for indicating the operating state of a contactor,
the indicator comprises a rotating shaft;
one end of the rotating rod shaft is connected with the movable iron core of the contactor through the main shaft;
the other end of the rotating rod shaft is pivotally connected to the shell of the contactor through a rotating shaft;
the linear motion of the movable iron core can drive the movable contact support of the contactor to move linearly, so that the movable contact arranged on the movable contact support moves between a closed position and an open position;
the linear motion of the movable iron core can drive the rotary rod shaft to rotate through the main shaft;
when the movable contact is in a closed position, a first indicating mark arranged on an indicating cantilever of the rotating rod shaft can be seen from the outside of the shell;
when the movable contact is in the open position, a second indicator mark arranged on the indicating cantilever of the rotating lever shaft can be seen from the outside of the shell.
2. The indicator of claim 1,
arranging a transparent window on the shell of the contactor;
when the movable contact is in a closed position, the first indicating mark is displayed in the transparent window;
when the movable contact is in the open position, the second indication mark is displayed in the transparent window.
3. The indicator of claim 2,
the first indicator has a first color;
the second indicator mark has a second color different from the first color;
when the movable contact is in a closed position, the first color is displayed in the transparent window;
when the movable contact is in the open position, the second color is displayed in the transparent window.
4. The indicator according to one of claims 1 to 3,
the rotary axle comprises an axle base, an axle connection, and the indicating boom;
the lever shaft connecting portion is formed to extend in a first direction from both ends of the lever shaft base;
the indicating cantilever is formed to extend in a second direction from one end of the lever shaft base;
the first direction is substantially perpendicular to the second direction.
5. The indicator of claim 4,
a rotating shaft through hole is formed in the base of the rod shaft;
the rotating shaft penetrates through the rotating shaft through hole;
a main shaft through hole is formed in the rod shaft connecting part;
the main shaft penetrates through the main shaft through hole;
an operating tool recess is provided between the first and second indicator marks of the indicator boom.
6. The indicator of claim 5,
the force arm from the groove to the rotating shaft is larger than that from the main shaft to the rotating shaft.
7. A contactor comprising a contact system and an electromagnetic system,
the contact system is arranged at the bottom of the contactor, and the electromagnetic system is arranged at the upper part of the contactor;
the contactor further comprising an indicator according to any one of claims 1 to 6.
8. The contactor according to claim 7,
the contact system comprises a moving contact, a fixed contact and a moving contact bracket;
the moving contact support bears the moving contact;
the electromagnetic system comprises a movable iron core, a static iron core and an electromagnetic coil;
when the electromagnetic coil is electrified, a magnetic field can be generated between the movable iron core and the static iron core, the movable iron core can overcome the counter force of a counter spring arranged in a contactor shell and is attracted by the static iron core to move until the movable iron core and the static iron core are completely closed, the movable contact support can be driven by the movable iron core to move, and the movable contact support drives the movable contact to move together until the movable contact and the static contact are closed.
9. The contactor according to claim 8,
the contactor further comprises a flip cover;
when manual operation is required, the flip cover is opened, and then an operation tool is inserted into the operation tool groove to rotate the rotary rod shaft of the indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021409544.0U CN212625398U (en) | 2020-07-16 | 2020-07-16 | A indicator and contactor for indicateing operating condition of contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021409544.0U CN212625398U (en) | 2020-07-16 | 2020-07-16 | A indicator and contactor for indicateing operating condition of contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212625398U true CN212625398U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021409544.0U Active CN212625398U (en) | 2020-07-16 | 2020-07-16 | A indicator and contactor for indicateing operating condition of contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212625398U (en) |
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2020
- 2020-07-16 CN CN202021409544.0U patent/CN212625398U/en active Active
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