CN216818247U - Circuit breaker with state detection device - Google Patents
Circuit breaker with state detection device Download PDFInfo
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- CN216818247U CN216818247U CN202122801573.2U CN202122801573U CN216818247U CN 216818247 U CN216818247 U CN 216818247U CN 202122801573 U CN202122801573 U CN 202122801573U CN 216818247 U CN216818247 U CN 216818247U
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- circuit breaker
- position detection
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Abstract
The utility model discloses a breaker with a state detection device, comprising: casing, circuit board, actuating mechanism and state detection device, actuating mechanism installs between casing and circuit board, and actuating mechanism includes: the motor of being connected with the circuit board electricity, by motor drive's gear train, with the handle of the drive wheel coaxial arrangement of gear train, state detection device includes: the first lug is arranged on the driving wheel, and the middle position detection switch is arranged on the shell and electrically connected with the circuit board so as to be matched with the first lug to detect the middle position state of the driving wheel. The state detection device can directly detect the middle position of the driving wheel, so that the circuit breaker can be subjected to manual opening and closing state detection more accurately, and has smaller error and better detection effect.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker with a state detection device.
Background
A miniature circuit breaker, MCB for short, is a terminal protection device most widely used in electrical terminal power distribution devices. The MCB is basically fixed in appearance, size, wiring mode and the like, is often used for the tail end of power distribution, is arranged on a plurality of branches, and plays a role in protecting and controlling electric equipment. The opening and closing driving mechanism is an electric operating mechanism, is a functional module for opening and closing control of the MCB, is fully combined with a circuit breaker structure, and can further meet the rigorous miniaturization design requirement of the circuit breaker.
Chinese patent document CN107240535A discloses an electric operating mechanism of a circuit breaker, comprising: the device comprises a switching-on position detection device, a switching-off position detection device and an intermediate position detection device, wherein the switching-on position detection device and the switching-off position detection device are arranged on two sides of a transmission shaft in a surrounding mode, a first detection object matched with the switching-on position detection device and the switching-off position detection device is arranged on the transmission shaft, the intermediate position detection device is arranged at a position, away from the transmission shaft, of a driving device, and a second detection object matched with the intermediate position detection device is arranged on the driving device. Although the distribution of each position detection device is dispersed, false detection can not occur when the first detection object and the second detection object are respectively detected, because the second detection object is arranged at a position far away from the transmission shaft, whether the driving wheel of the circuit breaker is at the middle position or not is indirectly judged, errors can exist in judgment, the anti-interference capability is poor, and the requirement of reliable detection cannot be met.
Disclosure of Invention
The utility model aims to provide a circuit breaker with a state detection device, which is used for directly detecting the middle position of a driving wheel and reducing detection errors.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows:
a circuit breaker having a condition sensing device, comprising: the device comprises a shell, a circuit board, a driving mechanism and a state detection device; the drive mechanism is installed between the housing and the circuit board, and the drive mechanism includes: the motor that is connected with the circuit board electricity, by the gear train of motor drive, with the handle of the coaxial installation of the drive wheel of gear train, state detection device include: the first lug is arranged on the driving wheel, the middle position detection switch is arranged on the shell and electrically connected with the circuit board so as to be matched with the first lug to detect the middle position state of the driving wheel.
Further, the state detection device further comprises: the switch-on and switch-off detection device comprises a second bump, a switch-off position detection switch and a switch-on position detection switch, wherein the second bump is arranged on the handle, and the switch-off position detection switch and the switch-on position detection switch are arranged on the circuit board to be matched with the second bump to detect the switch-on and switch-off position state of the handle.
Furthermore, the state detection device also comprises an intermediate circuit board, and the intermediate position detection switch is electrically connected with the circuit board through the intermediate circuit board; the middle circuit board is arranged on the shell, and the middle position detection switch is arranged on the middle circuit board.
Furthermore, the driving wheel is positioned between the shell and the handle, and the first bump is arranged on the surface, far away from the handle, of the driving wheel.
Furthermore, the opening position detection switch and the closing position detection switch are arranged on one surface, far away from the driving mechanism, of the circuit board, a notch is formed in the handle of the circuit board, and the second protruding block extends out of the notch.
Furthermore, the middle position detection switch is a bidirectional detection switch.
Further, the driving mechanism is installed on the N pole of the circuit breaker.
Further, the circuit breaker is a 1P + N type compact circuit breaker.
By adopting the technical scheme, the utility model has the beneficial effects that:
(1) the handle and the driving wheel are coaxially arranged and synchronously rotate, the state of the middle position of the driving wheel is detected through the state detection device, the direct detection of the middle position of the driving wheel is realized, the detection stroke range is large, the possibility of misjudgment is reduced, the anti-jamming capability is strong, the detection of the manual opening and closing state of the circuit breaker is more accurate, the error is smaller, and the detection effect is better.
(2) According to the utility model, the opening and closing position state of the handle is detected through the second bump, the opening position detection switch and the closing position detection switch, so that the opening and closing state of the circuit breaker is directly detected, and the detection is more accurate.
(3) According to the utility model, the driving wheel is positioned between the shell and the handle, the first bump is arranged on the surface of the driving wheel far away from the handle, and the first bump and the second bump are not interfered with each other while the middle position of the driving wheel is directly detected, so that the problem of false detection is avoided.
(4) The driving mechanism is arranged on the N pole of the circuit breaker, the opening position detection switch and the closing position detection switch do not occupy the space between the circuit board and the shell, the middle position detection switch only occupies less space in the shell, and the driving mechanism and the N pole are integrally miniaturized.
Drawings
Fig. 1 is a schematic view of the installation of a driving mechanism and a state detecting device in a circuit breaker.
Fig. 2 is an enlarged schematic view of a point a in fig. 1.
Fig. 3 is a front view of fig. 1.
Fig. 4 is a schematic view showing positions of the handle, the driving wheel, the intermediate position detecting switch and the intermediate circuit board in fig. 1.
Wherein: 1. the device comprises a shell, a circuit board 2, a driving wheel 3, a handle 4, a first bump 5, a brake-off position detection switch 6, a brake-on position detection switch 7, a second bump 8, an intermediate position detection switch 9 and an intermediate circuit board 10.
Detailed Description
The utility model is further described with reference to the following drawings and detailed description.
As shown in FIGS. 1 to 4, the present invention will be described with reference to a 1P + N type compact circuit breaker as an example. The circuit breaker with the state detection device comprises: casing 1, circuit board 2, actuating mechanism, state detection device. The drive mechanism is installed between the housing 1 and the circuit board 2, and the drive mechanism includes: a motor electrically connected to the circuit board 2, a gear set driven by the motor, and a handle 4 coaxially installed with a driving wheel 3 of the gear set, the state detecting device including: the switch comprises a first bump 5 and a middle position detection switch 9, wherein the first bump 5 is arranged on the driving wheel 3, the middle position detection switch 9 is arranged on the shell 1 and is electrically connected with the circuit board 2, and the middle position detection switch 9 and the first bump 5 are matched to detect the middle position state of the driving wheel 3 to determine whether the manual operation handle 4 can be switched on or off.
The utility model can realize the direct detection of the middle position of the driving wheel 3, so that the circuit breaker can be detected in a manual opening and closing state more accurately, the error is smaller, the detection effect is better, the detection stroke range is large, the possibility of misjudgment is reduced, and the anti-jamming capability is strong.
The state detection device further includes: the switch-on and switch-off detection device comprises a second bump 8, a switch-off position detection switch 6 and a switch-on position detection switch 7, wherein the second bump 8 is arranged on the handle 4, the switch-off position detection switch 6 and the switch-on position detection switch 7 are arranged on the circuit board 2, and the switch-on and switch-off position state of the handle 4 is detected by matching with the second bump 8.
According to the utility model, the opening and closing position state of the handle 4 is directly detected, so that the opening and closing state of the circuit breaker is directly detected, and the detection is more accurate.
The state detection device further comprises a middle position detection switch 9, the middle position detection switch 9 is electrically connected with the circuit board 2 through a middle circuit board 10, the middle circuit board 10 is installed on the shell 1, and the middle position detection switch 9 is installed on the middle circuit board 10 so as to facilitate installation of the middle position detection switch 9 on the shell 1 and transmit a detection signal to the circuit board 2.
Specifically, the opening position detection switch 6 and the closing position detection switch 7 of the present invention are disposed on a surface of the circuit board 2 away from the driving mechanism, a notch is formed in the handle 4 of the circuit board 2, and the second protrusion 8 extends out of the notch. The driving wheel 3 is located between the housing 1 and the handle 4, and the first projection 5 is provided on a surface of the driving wheel 3 away from the handle 4. The first bump 5 and the second bump 8 are not interfered with each other, so that the detection of the opening and closing positions and the middle position states of the circuit breaker is not interfered with each other, and the problem of false detection can not occur.
The middle position detection switch 9 is a bidirectional detection switch, and when the first bump 5 rotates forward and backward along with the handle 4, signals can be detected to judge that the driving wheel is in the middle position.
The driving mechanism is installed at the N pole of the circuit breaker, the opening position detection switch 6 and the closing position detection switch 7 do not occupy the space between the circuit board 2 and the shell 1, and the middle position detection switch 9 only occupies less space in the shell 1, so that the driving mechanism and the N pole are integrated in a small-sized design.
While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. A circuit breaker having a condition sensing device, comprising: the device comprises a shell, a circuit board, a driving mechanism and a state detection device; the drive mechanism is installed between the housing and the circuit board, and the drive mechanism includes: the motor that is connected with the circuit board electricity, by the gear train of motor drive, with the handle of the coaxial installation of the drive wheel of gear train, state detection device include: the first lug is arranged on the driving wheel, the middle position detection switch is arranged on the shell and electrically connected with the circuit board so as to be matched with the first lug to detect the middle position state of the driving wheel.
2. The circuit breaker with condition detecting device as claimed in claim 1, wherein said condition detecting device further comprises: the switch-on and switch-off detection device comprises a second bump, a switch-off position detection switch and a switch-on position detection switch, wherein the second bump is arranged on the handle, and the switch-off position detection switch and the switch-on position detection switch are arranged on the circuit board to be matched with the second bump to detect the switch-on and switch-off position state of the handle.
3. The circuit breaker with the state detecting device according to claim 1 or 2, wherein the state detecting device further comprises an intermediate circuit board, and the intermediate position detecting switch is electrically connected to the circuit board through the intermediate circuit board; the middle circuit board is arranged on the shell, and the middle position detection switch is arranged on the middle circuit board.
4. The circuit breaker with condition detecting device as claimed in claim 2, wherein the driving wheel is disposed between the housing and the handle, and the first protrusion is disposed on a surface of the driving wheel away from the handle.
5. The circuit breaker with the state detection device according to claim 2 or 4, wherein the opening position detection switch and the closing position detection switch are disposed on a surface of the circuit board away from the driving mechanism, the circuit board is provided with a notch at the handle, and the second protrusion protrudes from the notch.
6. The circuit breaker with condition detecting device as claimed in claim 1, wherein said middle position detecting switch is a bidirectional detecting switch.
7. The circuit breaker with condition detecting device as claimed in claim 1, wherein said driving mechanism is installed at an N pole of the circuit breaker.
8. The circuit breaker with condition detecting device as claimed in claim 7, wherein the circuit breaker is a 1P + N type compact circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122801573.2U CN216818247U (en) | 2021-11-16 | 2021-11-16 | Circuit breaker with state detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122801573.2U CN216818247U (en) | 2021-11-16 | 2021-11-16 | Circuit breaker with state detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216818247U true CN216818247U (en) | 2022-06-24 |
Family
ID=82050412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122801573.2U Active CN216818247U (en) | 2021-11-16 | 2021-11-16 | Circuit breaker with state detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216818247U (en) |
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2021
- 2021-11-16 CN CN202122801573.2U patent/CN216818247U/en active Active
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