CN217655830U - Under-voltage release for auxiliary signal output - Google Patents
Under-voltage release for auxiliary signal output Download PDFInfo
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- CN217655830U CN217655830U CN202220201407.0U CN202220201407U CN217655830U CN 217655830 U CN217655830 U CN 217655830U CN 202220201407 U CN202220201407 U CN 202220201407U CN 217655830 U CN217655830 U CN 217655830U
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- push rod
- release
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- voltage
- spring
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Abstract
The utility model relates to an under-voltage release for auxiliary signal output, which comprises a release shell, a bracket A, a bracket B and a microswitch, wherein the release shell is internally provided with an auxiliary push rod, a coil push rod and a coil, and the coil is electrically connected with an external transmission circuit; the bracket A is arranged on the shell of the release; the bracket B is coupled on the bracket A by a shaft; the microswitch is arranged in the release shell, the input end and the output end of the microswitch are electrically connected with the external signal collecting circuit, and the electric signal change of the external signal collecting circuit is formed by the opening and closing of the microswitch; the middle part of the under-voltage release push rod is connected to the support A in a shaft mode, an elastic reset element is arranged at the shaft joint, and one end portion of the under-voltage release push rod abuts against the support B. Compared with the prior art, the utility model discloses in make the circuit breaker can pass through rated voltage control circuit breaker dropout and export auxiliary signal, provide the function that can make the circuit breaker dropout and export auxiliary signal.
Description
Technical Field
The utility model relates to an undervoltage release especially relates to an undervoltage release for assisting signal output.
Background
The under-voltage relay or the release is a relay which can make a mechanical switch electric appliance have time delay or have no time delay to be switched on or switched off when the terminal voltage of the relay or the release is reduced to a preset value. Corresponding to the high-voltage protection, a tripping command is mainly sent out when a fault occurs, so that a matched switch trips, the accident prevention is enlarged, and under-voltage trippers are applied more and more widely at present.
The tripper has the protection functions of overload, circuit breaking, electric leakage, undervoltage, overvoltage, unbalance, under-frequency, over-frequency, reverse power, phase sequence and the like; and also has the functions of load monitoring, real-time value measurement, demand measurement, harmonic measurement, meter setting, maintenance, communication, DI/DO, area selective interlocking, test interlocking, LCD interface display and the like.
At present, no product with a shell frame with an under-voltage release and an auxiliary signal output integrated and independent in function exists in the market, and an integrated accessory device for providing the under-voltage release and the auxiliary function does not exist correspondingly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an under-voltage release for auxiliary signal output in order to overcome the defect that above-mentioned prior art exists, make the circuit breaker can pass through rated voltage control circuit breaker dropout and output auxiliary signal.
The purpose of the utility model can be realized through the following technical scheme:
the utility model aims at protecting an undervoltage release for assisting signal output, including release shell, support A, support B, micro-gap switch, wherein specifically:
an auxiliary push rod, a coil push rod and a coil are arranged in the shell of the tripper, the coil is electrically connected with an external transmission circuit, the coil push rod is arranged in the middle of the coil, the current in the coil and the current of the external transmission circuit are changed in equal proportion to form a changed electromagnetic suction force, and the auxiliary push rod is axially connected to the shell of the tripper;
the bracket A is arranged on the release shell;
the bracket B is coupled on the bracket A in a shaft way;
the micro switch is arranged in the release shell, the input end and the output end of the micro switch are electrically connected with the external signal collecting circuit, the electric signal change of the external signal collecting circuit is formed by the opening and the closing of the micro switch, one end of the auxiliary push rod is abutted against the micro switch, the other end of the auxiliary push rod is abutted against the rotating shaft of the circuit breaker, and the auxiliary push rod and the circuit breaker are coupled and linked;
the middle part of the under-voltage release push rod is connected to the support A in an axial mode, an elastic reset element is arranged at the position of the shaft joint, one end portion of the under-voltage release push rod is abutted to the support B, the other end portion of the under-voltage release push rod is abutted to the rotating shaft of the circuit breaker and forms coupling linkage with the opening and closing of the circuit breaker, and the coil push rod faces towards the under-voltage release push rod and enables the under-voltage release push rod to rotate through electromagnetic suction.
Furthermore, the under-voltage release also comprises a spring A, one end of the spring A is connected with the release shell, and the other end of the spring A is connected with the auxiliary push rod, so that the return effect on the auxiliary push rod is achieved.
Furthermore, the under-voltage release also comprises a spring B, wherein one end of the spring B is connected with the release shell, and the other end of the spring B is connected with the under-voltage release push rod, so that the reset effect of the under-voltage release push rod is achieved.
Furthermore, the under-voltage release also comprises a spring C, wherein one end of the spring C is connected with the support B, and the other end of the spring C is connected with the shell of the release, so that torsional reset force is provided for the rotation of the support B.
Further, the spring A, the spring B and the spring C are all torsion springs.
Further, the bracket B is coupled to the bracket a by a screw, and the bracket B can rotate around the screw.
Furthermore, the under-voltage release push rod is connected to the support A through a shaft A, the under-voltage release push rod can rotate anticlockwise around the shaft A, and the shaft A penetrates through the spring B.
Furthermore, when the breaker is in a brake-off or tripping state, the auxiliary push rod presses down the microswitch through the torsional force of the spring so as to enable the microswitch to be communicated;
when the breaker is in a closing state, the auxiliary push rod is abutted and buckled by the rotating shaft, and the micro switch is released.
Furthermore, the rotation position of the under-voltage push rod has two states, which respectively correspond to the under-voltage state and the foot-voltage state.
Furthermore, in an undervoltage state, the electromagnetic attraction force given to the undervoltage push rod by the coil and the coil push rod is smaller than the restoring force provided by the spring B;
when the voltage is in a sufficient state, the electromagnetic attraction force given to the under-voltage push rod by the coil and the coil push rod is greater than the restoring force provided by the spring B.
Compared with the prior art, the utility model discloses following technical advantage has:
(1) The technical scheme provides an accessory device integrating the under-voltage release and the auxiliary signal output function for the electronic molded case circuit breaker, so that the circuit breaker can control the circuit breaker to release and output the auxiliary signal through the rated voltage.
(2) The electronic molded case circuit breaker has the advantages of simple structure, reliable action, unchanged volume, independent functions and plug-in installation, a group of switches with auxiliary functions are added on the basis of a conventional under-voltage release, and the functions of releasing the circuit breaker and outputting auxiliary signals are provided in the under-voltage of the electronic molded case circuit breaker.
Drawings
Fig. 1 is the schematic view of the cross-section structure of the medium-voltage and under-voltage release of the present invention.
Fig. 2 is the three-dimensional structure schematic diagram of the medium-voltage and under-voltage release of the present invention.
Fig. 3 is the schematic cross-sectional view of the under-voltage release push rod of the under-voltage release of the utility model at the position a and the position B.
Fig. 4 is the structure schematic diagram of the under-voltage tripping push rod of the under-voltage tripping device in the main view of the conversion between the position a and the position B.
Fig. 5 is a schematic structural view of the interaction between the middle auxiliary push rod and the micro switch button of the present invention.
Fig. 6 is the structure schematic diagram of the under-voltage tripping push rod of the under-voltage tripping device of the utility model.
Fig. 7 is the structure schematic diagram of the utility model discloses well under-voltage release is installed and is covered greatly.
Fig. 8 is the working principle diagram 1 of the medium-voltage and low-voltage release of the present invention.
Fig. 9 is the working principle diagram 2 of the medium-voltage and under-voltage release of the present invention.
In the figure: the circuit breaker comprises an under-voltage release push rod 1, an auxiliary push rod 2, a spring A3, a microswitch 4, a spring B5, a shaft A6, a shaft support A7, a shaft B8, a spring C9, a support B10, a screw 11, a coil shell 12, a release shell 13, a coil 14, a coil push rod 15, a circuit breaker big cover 16, a rotating shaft 17 and a traction rod 18.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. In the technical scheme, the features such as component model, material name, connection structure, control method, algorithm and the like which are not explicitly described are all regarded as common technical features disclosed in the prior art.
The utility model discloses an undervoltage release for auxiliary signal output for the purpose, including release shell 13, support A7, support B10, micro-gap switch 4, wherein specifically refer to in the picture 1 to fig. 9.
An auxiliary push rod 2, a coil push rod 15 and a coil 14 are arranged in a release shell 13, the coil 14 is electrically connected with an external transmission circuit, the coil push rod 15 is arranged in the middle of the coil 10, the current in the coil 14 and the current of the external transmission circuit are changed in equal proportion, so that a changed electromagnetic attraction force is formed, and the auxiliary push rod 2 is axially connected to the release shell 13; the bracket A7 is arranged on the release shell 13; the bracket B10 is coupled to the bracket A7 in a shaft mode.
Micro-gap switch 4 is located inside release shell 13, micro-gap switch 4's input and output are connected with external signal collection circuit electricity, constitute external signal collection circuit's the signal of telecommunication change through micro-gap switch 4's switching, the one end butt of auxiliary push rod 2 in on micro-gap switch 4, the other end butt is on the pivot 17 of circuit breaker, constitutes the coupling linkage with opening and shutting of circuit breaker.
The middle part of the under-voltage release push rod 1 is connected to the support A7 in an axial mode, an elastic reset element is arranged at the position of the shaft joint, one end portion of the under-voltage release push rod 1 abuts against the support B10, the other end portion of the under-voltage release push rod 1 abuts against the rotating shaft 17 of the circuit breaker and forms coupling linkage with the opening and closing of the circuit breaker, the coil push rod 15 faces the under-voltage release push rod 1, and the under-voltage release push rod 1 rotates through electromagnetic suction.
In specific implementation, the under-voltage release further comprises a spring A3, one end of the spring A3 is connected with the release shell 13, and the other end of the spring A3 is connected with the auxiliary push rod 2, so that the reset effect on the auxiliary push rod 2 is achieved. The under-voltage release also comprises a spring B5, one end of the spring B5 is connected with the release shell 13, and the other end of the spring B5 is connected with the under-voltage release push rod 1, so that the reset effect of the under-voltage release push rod 1 is achieved. The under-voltage release also comprises a spring C9, wherein one end of the spring C9 is connected with the support B10, and the other end of the spring C9 is connected with the release shell 13, so that torsional reset force is provided for the rotation of the support B10.
In specific implementation, the spring A3, the spring B5 and the spring C9 are all torsion springs. The bracket B10 is coupled to the bracket A7 by a screw 11, and the bracket B10 can rotate around the screw 11. The under-voltage release push rod 1 is connected to the support A7 through a shaft A6 in a shaft mode, the under-voltage release push rod 1 can rotate anticlockwise around the shaft A6, and the shaft A6 penetrates through the spring B5.
In specific implementation, the bracket A7 is installed in the trip unit housing 13, the bracket B10 and the screw 11 are installed on the bracket A7, the screw 11 serves to connect the bracket A7 and the bracket B10, and the bracket B10 can rotate around the center of the screw 11 by a certain angle. The microswitch 4 and the spring A3 are installed in the release shell 13 together, and the spring A3 plays a role in resetting the auxiliary push rod 2. The coil pusher 15 and the coil 14 are mounted in the trip unit housing 13. The under-voltage release push rod 1 and the shaft A6 are installed on the support A7, wherein the shaft A6 plays a role in connecting the under-voltage release push rod 1 with the support A7, and the under-voltage release push rod 1 can rotate anticlockwise at a certain angle around the center of the shaft A6. Spring B5 and spring C9 are installed on support A7 and support B10, and spring B5 plays the reset action of under-voltage release push rod 1, and spring C9 plays the rotatory effect of support B10.
As shown in fig. 1 to 9, the main function of the under-voltage release for auxiliary signal output in this embodiment is to provide an accessory device with independent under-voltage release and auxiliary signal output functions for the molded case circuit breaker.
In specific operation, referring to fig. 8 and 9, when the rated voltage is 85% -110%, the circuit breaker can be closed, and at the moment, the circuit breaker is buckled and closed again. When the circuit breaker is switched on, the surface E of the rotating shaft 17 buckles the surface D of the auxiliary push rod 2, so that the button of the microswitch 4 is in a release state, the surface G of the rotating shaft 17 of the circuit breaker is pre-applied with a clockwise moment on the surface F of the under-voltage push rod 1, the under-voltage push rod is at an initial position B, an under-voltage coil 14 in the under-voltage tripper continuously obtains an electric signal, and the under-voltage push rod 1 starts to pull in to be kept at the position B.
During specific operation, when the rated voltage is 35% -70%, an undervoltage coil in the undervoltage release loses an electric signal, electromagnetic force is not enough to overcome the reaction force of a spring B5, the push rod 1 of the undervoltage release resets, namely, the push rod 1 returns to a position A under the action of a coil 14, a coil push rod 15, the spring B5 and a support B10, and the end C of the undervoltage push rod 1 is enabled to hit a traction rod 18 to enable a breaker to be tripped. When the rated voltage is lower than 35%, the undervoltage release can prevent the breaker from closing. When the rated voltage of the circuit breaker is 70% -110%, a group of contacts F11, F12 and F14 of the auxiliary switch are closed or opened according to the state of the circuit breaker. When the breaker is in an opening or tripping state, the auxiliary push rod 2 is not buckled by the rotating shaft 17, and the button of the microswitch 4 is pressed under the reaction of the spring A3 to output an auxiliary signal. When the breaker is switched on, the auxiliary push rod 2 is buckled by the rotating shaft 17, so that the micro switch button is released, the signal circuit is disconnected, and the external signal receiving equipment acquires the signal change. Through the action of the accessory device, the circuit breaker plays a role in tripping and independently outputting an auxiliary signal when under voltage.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should understand that all the improvements and modifications made without departing from the scope of the present invention according to the disclosure of the present invention should be within the protection scope of the present invention.
Claims (10)
1. An under-voltage release for assisting signal output, comprising:
the electromagnetic suction type tripping device comprises a tripping device shell (13), wherein an auxiliary push rod (2), a coil push rod (15) and a coil (14) are arranged in the tripping device shell, the coil (14) is electrically connected with an external transmission circuit, the coil push rod (15) is arranged in the middle of the coil (14), the current in the coil (14) and the current of the external transmission circuit are changed in an equal proportion, so that a changed electromagnetic suction force is formed, and the auxiliary push rod (2) is connected to the tripping device shell (13) in a shaft mode;
the support A (7) is arranged on the release shell (13);
the bracket B (10) is coupled to the bracket A (7) in a shaft manner;
the microswitch (4) is arranged in the release shell (13), the input end and the output end of the microswitch (4) are electrically connected with an external signal collecting circuit, the electric signal change of the external signal collecting circuit is formed by the opening and closing of the microswitch (4), one end of the auxiliary push rod (2) is abutted against the microswitch (4), the other end of the auxiliary push rod is abutted against a rotating shaft (17) of the circuit breaker, and the auxiliary push rod and the circuit breaker are coupled and linked;
undervoltage release push rod (1), the middle part of undervoltage release push rod (1) connect in on support A (7) to be equipped with the elasticity reset element in the coupling department, an tip butt of undervoltage release push rod (1) in on support B (10), another tip butt of undervoltage release push rod (1) in on pivot (17) of circuit breaker, constitute the coupling linkage with opening and shutting of circuit breaker, coil push rod (15) are towards undervoltage release push rod (1), make undervoltage release push rod (1) rotate through electromagnetic suction.
2. An under-voltage release for auxiliary signal output according to claim 1, characterized in that the under-voltage release further comprises a spring a (3), one end of the spring a (3) is connected with the release housing (13), and the other end is connected with the auxiliary push rod (2), thereby playing a role of resetting the auxiliary push rod (2).
3. An under-voltage release for assisting signal output according to claim 2, characterized in that the under-voltage release further comprises a spring B (5), one end of the spring B (5) is connected with the release housing (13), and the other end is connected with the under-voltage release push rod (1), thereby playing a role of resetting the under-voltage release push rod (1).
4. An under-voltage release for auxiliary signal output according to claim 3, further comprising a spring C (9), wherein one end of the spring C (9) is connected to the bracket B (10) and the other end is connected to the release housing (13), thereby providing a torsional return force for the rotation of the bracket B (10).
5. An undervoltage release for auxiliary signal output according to claim 3, wherein said spring A (3), spring B (5) and spring C (9) are all torsion springs.
6. An under-voltage release for auxiliary signal output according to claim 1, characterized in that the bracket B (10) is journalled on the bracket a (7) by means of a screw (11), the bracket B (10) being rotatable around the screw (11).
7. An undervoltage release for auxiliary signal output according to claim 5, characterized in that the undervoltage release push rod (1) is journalled on the bracket A (7) by means of a shaft A (6), the undervoltage release push rod (1) being able to rotate anticlockwise around the shaft A (6), the shaft A (6) penetrating the spring B (5).
8. The under-voltage release for auxiliary signal output according to claim 1, characterized in that when the breaker state is open or tripping, the auxiliary push rod (2) presses down the micro switch (4) by the spring torsion force to make the micro switch (4) connect;
when the breaker is switched on, the auxiliary push rod (2) is abutted by the rotating shaft (17), and the microswitch (4) is released.
9. An undervoltage release for auxiliary signal output according to claim 8, characterized in that the rotation position of the push rod (1) of the undervoltage release has two states, corresponding to the two states of undervoltage and foot-voltage, respectively.
10. An undervoltage release for auxiliary signal output according to claim 9, wherein in undervoltage condition, the electromagnetic attraction force given to the under-voltage release push rod (1) by the coil (14) and the coil push rod (15) is smaller than the restoring force provided by the spring B (5);
when the voltage is in a sufficient state, the electromagnetic attraction force given to the under-voltage release push rod (1) by the coil (14) and the coil push rod (15) is greater than the restoring force provided by the spring B (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220201407.0U CN217655830U (en) | 2022-01-25 | 2022-01-25 | Under-voltage release for auxiliary signal output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220201407.0U CN217655830U (en) | 2022-01-25 | 2022-01-25 | Under-voltage release for auxiliary signal output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217655830U true CN217655830U (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220201407.0U Active CN217655830U (en) | 2022-01-25 | 2022-01-25 | Under-voltage release for auxiliary signal output |
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| Country | Link |
|---|---|
| CN (1) | CN217655830U (en) |
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- 2022-01-25 CN CN202220201407.0U patent/CN217655830U/en active Active
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