CN212750756U - Circuit breaker with function of detecting breaking state - Google Patents
Circuit breaker with function of detecting breaking state Download PDFInfo
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- CN212750756U CN212750756U CN202021320427.7U CN202021320427U CN212750756U CN 212750756 U CN212750756 U CN 212750756U CN 202021320427 U CN202021320427 U CN 202021320427U CN 212750756 U CN212750756 U CN 212750756U
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- travel switch
- circuit breaker
- circuit board
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- transmission member
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Abstract
The utility model discloses a take break-make state to detect circuit breaker of function, including casing and moving contact subassembly, moving contact subassembly is including the contact support, the circuit breaker is still including detection device, detection device includes circuit board and travel switch, travel switch fixes on the circuit board and constitutes electric connection with the circuit board, the circuit board is connected the location with the casing cooperation, the contact support cooperates with travel switch linkage. The utility model discloses than the circuit breaker of traditional band-pass disconnected state detection function the consumption is lower, the volume is littleer, the security is higher.
Description
Technical Field
The utility model relates to a take break-make state to detect circuit breaker of function.
Background
Some circuit breakers on the market all have the on-off state detection function at present, and it can roughly be divided into two kinds according to the principle difference, one kind adopts the opto-coupler subassembly to detect the operating position of circuit breaker movable contact subassembly, and then judges the on-off state of circuit breaker, and another kind is then through getting the form of coming feedback signal at circuit breaker two poles of the earth and judging the on-off state of circuit breaker.
The traditional detection mode can lead the whole power consumption of the circuit breaker to be changed, has larger volume, occupies more space in the circuit breaker and has certain potential safety hazard.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a lower, the volume of consumption is littleer, the higher circuit breaker of taking break-make state detection function of security.
In order to achieve the above object, the utility model provides a take break-make state to detect circuit breaker of function, including casing and moving contact assembly, moving contact assembly is including the contact support, the circuit breaker is still including detection device, detection device includes circuit board and travel switch, travel switch fixes on the circuit board and constitutes electric connection with the circuit board, the circuit board is connected the location with the casing cooperation, the contact support cooperates with the travel switch linkage.
The utility model has the advantages that: the contact support of the movable contact assembly of the circuit breaker moves along with the opening and closing of the circuit breaker, and due to the linkage and the matching of the contact support and the travel switch, the travel switch can be triggered to perform corresponding actions when the contact support moves, so that the travel switch generates current signals corresponding to the opening and closing of the circuit breaker, and the judgment on the opening and closing state of the circuit breaker can be realized through the detection and the identification on the current signals. The setting of circuit board can supply travel switch to install the location on the one hand, makes travel switch keep at stable operating position, and on the other hand still can be used for with travel switch electric connection, makes things convenient for signal output conduction, also can add some control chips on the circuit board certainly, realizes travel switch output signal's identification processing even teletransmission. Compared with the prior art, the travel switch has the advantages that the overall power consumption of the circuit breaker is lower, the size is smaller, the influence on the overall size of the circuit breaker is small, and the safety is higher.
Furthermore, the shell comprises a first cavity and a second cavity which are adjacently arranged, the first cavity and the second cavity are separated through a substrate of the shell, the movable contact assembly is arranged in the first cavity, the detection device is arranged in the second cavity, the contact support and the travel switch form linkage fit through a transmission member which is simultaneously arranged in the first cavity and the second cavity in a penetrating mode, one end of the transmission member is fixedly connected with the contact support, and the other end of the transmission member penetrates through the substrate and then is in driving fit with the travel switch.
The advantage of adopting above-mentioned setting is: the movable contact assembly and the detection device are respectively arranged in the two adjacent first cavities and the second cavity, the movable contact assembly and the detection device are isolated from each other through the substrate, the influence of electric arcs and high temperature in the first cavities on the circuit board and the travel switch is avoided, the stability and the safety of the movable contact assembly during working are improved, and the normal linkage of the movable contact assembly and the travel switch can still be ensured when the movable contact assembly and the travel switch are respectively arranged in the two adjacent cavities through the arrangement of the transmission member.
Furthermore, the travel switch comprises an operating rod, the operating rod is provided with two swing positions, the two swing positions respectively correspond to two signal output states (namely corresponding to a circuit breaker opening state and a circuit breaker closing state) of the travel switch, the other end of the transmission member can push the operating rod to move towards one of the swing positions, and the operating rod can automatically swing towards the other swing position to reset.
The advantage of adopting above-mentioned setting is: the operating rod of the travel switch has the self-resetting capacity, the operating rod is pushed to move to one of the swinging positions through the transmission component when the contact support acts, and the operating rod can automatically swing and reset to the other swinging position when the contact support and the transmission component return to the original position.
Furthermore, a first arc-shaped through groove matched with the motion track of the transmission member is formed in the substrate, and the transmission member is movably arranged in the first arc-shaped through groove in a penetrating mode.
The advantage of adopting above-mentioned setting is: the arrangement of the first arc-shaped through groove plays a certain guiding and supporting role in the movement of the transmission member, the movement stability of the transmission member is improved, and the isolation effect between the first cavity and the second cavity can also be improved as much as possible.
Furthermore, the circuit board is provided with a second arc-shaped through groove matched with the motion track of the transmission member, and the other end of the transmission member movably penetrates through the second arc-shaped through groove.
The advantage of adopting above-mentioned setting is: the setting that the second arc led to the groove plays certain direction and supporting role to the motion of transmission member, improves the stability of its motion, and it can further improve the stability of transmission member when leading to the groove cooperation with first arc, makes the difficult fracture of buckling of transmission member.
Further, the travel switch is arranged on one side of the circuit board facing the movable contact component.
The advantage of adopting above-mentioned setting is: because the other end of the transmission member movably penetrates through the second arc-shaped through groove, the travel switch is arranged on one side of the circuit board facing the movable contact component, the other end of the transmission member can be prevented from being matched with the travel switch to fail, the matching between the transmission member and the operating rod of the travel switch is more stable, and the reliability in operation is improved.
And the leakage protection module comprises a zero sequence transformer, a trip coil assembly, a signal processing circuit and a switch element, wherein the signal processing circuit and the switch element are used for realizing the action of the zero sequence transformer for controlling the trip coil assembly, and the signal processing circuit and the switch element are arranged on the circuit board.
The advantage of adopting above-mentioned setting is: the signal processing circuit and the switch element which are used for controlling the tripping coil assembly to act by the zero sequence transformer are arranged on the circuit board, so that the number of internal parts of the circuit breaker can be reduced, the whole structure is more compact, and the safety and the stability during the operation can be improved.
Drawings
FIG. 1 is an assembly view of a substrate corresponding to one side of a second cavity in an embodiment of the present invention;
FIG. 2 is an assembly view of the substrate corresponding to the other side of the first cavity in the embodiment of the present invention;
fig. 3 is an assembly view of a travel switch according to an embodiment of the present invention;
fig. 4 is a schematic view of the linkage and cooperation of the moving contact assembly and the travel switch in the embodiment of the present invention;
fig. 5 is a partial cross-sectional view of an embodiment of the present invention.
Detailed Description
The utility model discloses the implementation of the circuit breaker of band-pass disconnected state detection function is shown in fig. 1-5: the circuit breaker comprises a shell 1 and a movable contact component, wherein the movable contact component comprises components such as a contact support 2, a movable contact 3, a rotating shaft 4 and the like, the movable contact 3 is matched with the contact support 2 to be installed and fixed, the rotating shaft 4 realizes the rotating matching between the contact support 2 and the shell 1, and the movable contact component in the circuit breaker can be a component of a circuit breaker module and a component of an electric leakage protection module, namely the movable contact component can be used for short circuit overload protection on-off and leakage protection on-off, the circuit breaker also comprises a detection device, the detection device comprises a circuit board 5 and a travel switch 6, the travel switch 6 is fixed on the circuit board 5 and is electrically connected with the circuit board 5, the circuit board 5 is matched with the shell 1 to be connected and positioned, and the circuit board 5 can be matched with a cavity or a protrusion arranged on the shell 1 to be inserted and positioned, the contact support 2 is in linkage fit with the travel switch 6, so that the contact support 2 can drive the travel switch 6 to generate switching action when opening and closing movement of the circuit breaker is carried out.
The housing 1 comprises a first cavity 11 and a second cavity 12 which are adjacently arranged, the first cavity 11 and the second cavity 12 are separated by a base plate 13 of the housing 1 (as shown in fig. 5), the moving contact component is arranged in the first cavity 11, the detection device is arranged in the second cavity 12, the contact support 2 and the travel switch 6 are coupled by a transmission member 7, preferably a cylindrical long rod, one end of the transmission component is fixedly connected with the contact support 2, in the embodiment, the transmission component 7 and the contact support 2 are two independent parts which are fixed by inserting fit, so that the arrangement is convenient for processing and assembling, of course, the two components may be integrally formed, and the other end of the transmission member 7 passes through the substrate 13 and then is in driving fit with the travel switch 6 in the second cavity 12.
The travel switch 6 comprises an operating rod 61, the operating rod 61 has two swing positions, the two swing positions respectively correspond to two signal output states (namely on and off) of the travel switch 6, the other end of the transmission member 7 can push the operating rod 61 to move towards one swing position, and the operating rod 61 can automatically swing and reset towards the other swing position based on a spring of the travel switch 6. The utility model discloses in travel switch 6 be the more common miniature travel switch on the market.
The base plate 13 is provided with a first arc-shaped through groove 131 matched with the motion track of the transmission member 7, the transmission member 7 is movably arranged in the first arc-shaped through groove 131 in a penetrating mode, and the first arc-shaped through groove 131 can play a role in guiding and supporting the motion of the transmission member 7.
The circuit board 5 is provided with the second arc that leads to groove 51 with transmission member 7 motion trail looks adaptation, the other end activity of transmission member 7 is worn to establish in the second arc leads to groove 51, and the second arc leads to groove 51 can play the effect of direction and support to the motion of transmission member 7, and the cooperation that leads to groove 51 through first arc 131 and second arc can further improve this kind of effect.
The travel switch 6 is preferably arranged on one side of the circuit board 5 facing the movable contact assembly, so that the other end of the transmission member 7 can be better matched with the operating rod 61 of the travel switch 6 in a pushing mode, and the other end of the transmission member 7 is not easy to be separated from the other side of the operating rod 61, and linkage failure is caused.
This embodiment is still including the earth leakage protection module, the earth leakage protection module is including zero sequence transformer, trip coil subassembly and be used for realizing that zero sequence transformer control trip coil subassembly takes place the signal processing circuit and the switch element (not shown in the figure) of action, and signal processing circuit and switch element all are the common component of circuit breaker earth leakage protection module, will signal processing circuit and switch element all set up on the circuit board 5, make circuit board 5 not only can be used for handling the current signal that zero sequence transformer produced and the effect of control switch element action, can also be used for realizing the electric connection to travel switch 6, make circuit board 5 multi-functional, make circuit breaker part quantity and volume obtain reducing. Certainly, some control chips can be added on the circuit board 5 to realize the identification processing and even the remote sending of the output signal of the travel switch 6, which more meets the current requirement of the internet of things.
The above embodiment is only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a take on-off state to detect circuit breaker of function, includes casing and moving contact subassembly, moving contact subassembly is including the contact support, its characterized in that: the circuit breaker further comprises a detection device, the detection device comprises a circuit board and a travel switch, the travel switch is fixed on the circuit board and electrically connected with the circuit board, the circuit board is connected and positioned with the shell in a matched mode, and the contact support is in linkage fit with the travel switch.
2. The circuit breaker with an open state detection function according to claim 1, characterized in that: the casing comprises a first cavity and a second cavity which are adjacently arranged, the first cavity and the second cavity are separated through a substrate of the casing, the moving contact assembly is arranged in the first cavity, the detection device is arranged in the second cavity, the contact support and the travel switch form linkage fit through a transmission member which is simultaneously arranged in the first cavity and the second cavity in a penetrating mode, one end of the transmission member is fixedly connected with the contact support, and the other end of the transmission member penetrates through the substrate and then is in driving fit with the travel switch.
3. The circuit breaker with an open state detecting function according to claim 2, characterized in that: the travel switch comprises an operating rod, the operating rod is provided with two swinging positions, the two swinging positions correspond to two signal output states of the travel switch respectively, the other end of the transmission component can push the operating rod to move towards one swinging position, and the operating rod can automatically swing towards the other swinging position to reset.
4. The circuit breaker with an open state detecting function according to claim 2, characterized in that: the base plate is provided with a first arc-shaped through groove matched with the motion track of the transmission member, and the transmission member is movably arranged in the first arc-shaped through groove in a penetrating mode.
5. The circuit breaker with an open state detecting function according to claim 2 or 4, characterized in that: the circuit board is provided with a second arc-shaped through groove matched with the motion trail of the transmission member, and the other end of the transmission member movably penetrates through the second arc-shaped through groove.
6. The circuit breaker with an open state detecting function according to claim 5, characterized in that: the travel switch is arranged on one side of the circuit board facing the movable contact component.
7. The circuit breaker with trip status detection function according to claim 1 or 2 or 3 or 4 or 6, characterized in that: the leakage protection circuit comprises a leakage protection module, wherein the leakage protection module comprises a zero sequence transformer, a trip coil assembly, a signal processing circuit and a switch element, the signal processing circuit and the switch element are used for realizing the action of the zero sequence transformer for controlling the trip coil assembly, and the signal processing circuit and the switch element are arranged on a circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021320427.7U CN212750756U (en) | 2020-07-07 | 2020-07-07 | Circuit breaker with function of detecting breaking state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021320427.7U CN212750756U (en) | 2020-07-07 | 2020-07-07 | Circuit breaker with function of detecting breaking state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212750756U true CN212750756U (en) | 2021-03-19 |
Family
ID=75022147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021320427.7U Active CN212750756U (en) | 2020-07-07 | 2020-07-07 | Circuit breaker with function of detecting breaking state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212750756U (en) |
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2020
- 2020-07-07 CN CN202021320427.7U patent/CN212750756U/en active Active
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