CN218975366U - Thermomagnetic molded case circuit breaker - Google Patents
Thermomagnetic molded case circuit breaker Download PDFInfo
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- CN218975366U CN218975366U CN202223231133.9U CN202223231133U CN218975366U CN 218975366 U CN218975366 U CN 218975366U CN 202223231133 U CN202223231133 U CN 202223231133U CN 218975366 U CN218975366 U CN 218975366U
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Abstract
The utility model discloses a thermomagnetic molded case circuit breaker, which relates to the technical field of thermomagnetic molded case circuit breakers and comprises a circuit breaker body, wherein one end of the circuit breaker body is provided with a tripping device and metal sheets arranged on two sides of the tripping device; three current transformer bodies are arranged at one end of the breaker body, and are respectively a fast saturation current transformer, a Hall current transformer and a Rogowski coil current transformer; one end of the breaker body is provided with a cover body for covering the tripping, the metal sheet and the current transformer body; the utility model saves the installation space, reduces the wiring length of the copper plate, and reduces the acquisition cost of the current transformer body, thereby reducing the overall use cost, having smaller overall occupied area and being convenient for installation.
Description
Technical Field
The utility model relates to the technical field of thermomagnetic molded case circuit breakers, in particular to a thermomagnetic molded case circuit breaker.
Background
The thermomagnetic circuit breaker is a widely used circuit breaker product, plays a circuit breaking and protecting function, and comprises an operating mechanism and a tripping mechanism, when overload faults or circuit breaking faults occur in the circuit, the tripping mechanism trips to drive the operating mechanism to cause the circuit breaker to break, and after the circuit breaker breaks, no matter whether the faults are removed or not, the tripping mechanism can be tripped again at any time, so that the thermomagnetic circuit breaker can be switched on at any time.
Through searching, publication number is CN105869960B, a thermomagnetic molded case circuit breaker overload signal output device is disclosed, although compared with the prior art, when the circuit breaker current is overloaded, the thermomagnetic molded case circuit breaker overload signal output device bends a bimetallic strip to drive a traction rod to touch a micro switch, so that the circuit breaker sends an overload signal, and the time of the traction rod to touch the micro switch can be trimmed through a lock nut. The structure is simple, the design is ingenious, and the volume is small; the whole action mechanism is reliable and stable in operation, but the multifunctional meter is single in function, when the multifunctional meter is matched with the function meter, 3 independent current transformers are required to be configured, and as the current transformers are expensive, wires and copper plates are required to be subjected to current sampling with the current transformers, wiring is complex, wiring materials are increased, the whole use cost is high, and the multifunctional meter occupies a large space and is inconvenient to install.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the thermomagnetic molded case circuit breaker, the existing thermomagnetic molded case circuit breaker has single function, when the existing thermomagnetic molded case circuit breaker is matched with a function meter, the multifunctional meter is required to be provided with 3 independent current transformers, and as the transformers are expensive, wires and copper plates are required to be subjected to current sampling with the current transformers, the wiring is complicated, wiring materials are increased, the overall use cost is high, and the multifunctional meter occupies a large space and is inconvenient to install.
In order to solve the technical problems, the technical scheme of the utility model is that the thermo-magnetic molded case circuit breaker comprises:
the circuit breaker comprises a circuit breaker body, wherein one end of the circuit breaker body is provided with a tripping device and metal sheets arranged on two sides of the tripping device;
three current transformer bodies are arranged at one end of the breaker body, and are respectively a fast saturation current transformer, a Hall current transformer and a Rogowski coil current transformer;
one end of the breaker body is provided with a cover body for covering the tripping, the metal sheet and the current transformer body;
an operation groove for tripping is formed in one end of the cover body.
As a further aspect of the utility model: the three current transformer bodies are connected with two data lines, and the two data lines are used for connecting the current transformer bodies with external equipment.
As a further aspect of the utility model: the circuit breaker is characterized in that heat conducting plates are arranged on the outer walls of the left side and the right side of the circuit breaker body, and radiating fins are arranged at one end, far away from the outer wall of the circuit breaker body, of each heat conducting plate.
As a further aspect of the utility model: and the joint of the heat conducting plate and the outer wall of the circuit breaker body is smeared with heat conducting silicone grease.
As a further aspect of the utility model: the cover body is connected to one end of the breaker body through a connecting mechanism, the connecting mechanism comprises mounting grooves symmetrically formed in one end of the breaker body, auxiliary plates are fixed on the outer walls of the left side and the right side of the breaker body, a sliding groove is formed in one end of each auxiliary plate, a sliding block is connected in the sliding groove in a sliding mode, and clamping strips are fixed at one end of each sliding block;
the left side and the right side of the cover body are provided with a first clamping hole, a second clamping hole matched with the first clamping hole is formed in one side wall of the mounting groove, and the clamping strip is clamped in the first clamping hole and the second clamping hole.
As a further aspect of the utility model: the inner wall of one side of the sliding groove is fixedly provided with a telescopic rod, one end of the telescopic rod, which is far away from the inner wall of one side of the sliding groove, is fixed with the sliding block, the outer wall of the telescopic rod is provided with a compression spring, one end of the compression spring is fixed with the inner wall of one side of the sliding groove, and the other end of the compression spring is fixed with the sliding block.
As a further aspect of the utility model: one end of the auxiliary plate is fixed with a limit strip, and the bottom of the cover body is abutted with the limit strip.
The technical scheme is adopted:
the three current transformer bodies are devices for converting large current into small current signals which can be acquired by the electronic circuit, the small current can be provided for current signal sources matched with other devices such as a multifunctional instrument, an ammeter, a motor starter, a comprehensive protection device and the like, and particularly, the current transformer bodies are matched with two data wires to provide current sampling interfaces for the other devices, so that other devices of the complete set of cabinets needing to use the current transformer bodies do not need to be additionally provided with the current transformer bodies.
According to the utility model, the mounting mode of the cover body is changed, specifically, the telescopic rod is driven to extend under the action of the elasticity of the compression spring, the sliding block is pushed to move in the sliding groove when the telescopic rod extends, and finally the clamping strip is clamped into the first clamping hole and the second clamping hole to finish the fixing of the cover body, so that when the cover body is dismounted, the sliding block is driven to move in the sliding groove in a reaction mode, the telescopic rod and the compression spring can correspondingly shrink, and when the clamping strip is separated from the first clamping hole and the clamp Kong Erna, the cover body can be dismounted.
Drawings
Fig. 1 is a schematic perspective view of a thermo-magnetic molded case circuit breaker;
fig. 2 is a schematic diagram of a first clamping hole and a second clamping hole in a thermo-magnetic molded case circuit breaker;
FIG. 3 is a schematic view of a part of the structure of a thermo-magnetic molded case circuit breaker;
fig. 4 is a schematic diagram of a telescopic rod and a compression spring in a thermo-magnetic molded case circuit breaker.
In the figure: 101. a circuit breaker body; 102. a cover body; 103. an operation groove; 104. tripping; 105. a metal sheet; 106. a current transformer body; 107. a heat conductive plate; 108. a heat radiation fin; 200. a connecting mechanism; 201. a mounting groove; 202. an auxiliary plate; 203. a chute; 204. a slide block; 205. clamping strips; 206. the first clamping hole is formed; 207. a second clamping hole; 208. a telescopic rod; 209. a compression spring; 210. and a limit strip.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Example 1
Referring to fig. 1 and 3, the present utility model provides a technical solution: the thermomagnetic molded case circuit breaker comprises a circuit breaker body 101, wherein a trip 104 and metal sheets 105 arranged on two sides of the trip 104 are arranged at one end of the circuit breaker body 101; three current transformer bodies 106 are arranged at one end of the breaker body 101, and the three current transformer bodies 106 are respectively a fast saturation current transformer, a Hall current transformer and a Rogowski coil current transformer; one end of the breaker body 101 is provided with a cover 102 for covering a tripping device 104, a metal sheet 105 and a current transformer body 106; an operation groove 103 for tripping 104 is formed in one end of the cover body 102, three current transformer bodies 106 are connected with two data wires, the two data wires are used for connecting the current transformer bodies 106 with external equipment, heat conducting plates 107 are mounted on the outer walls of the left side and the right side of the circuit breaker body 101, heat radiating fins 108 are mounted on one end, far away from the outer wall of the circuit breaker body 101, of the heat conducting plates 107, and heat conducting silicone grease is smeared at the joint of the heat conducting plates 107 and the outer wall of the circuit breaker body 101.
In the embodiment, due to the arrangement of the heat conducting plate 107 and the heat radiating fins 108, the heat radiating efficiency of the circuit breaker body 101 can be improved under the cooperation of the heat conducting plate 107 and the heat radiating fins 108, the possibility of short circuit caused by overhigh temperature of the circuit breaker body 101 is avoided, and the working efficiency and the service life of the circuit breaker body 101 are improved;
in this embodiment, the heat conduction silicone grease can further improve the heat conduction efficiency of the heat conduction plate 107 and the heat dissipation fin 108, and further improve the heat dissipation efficiency of the breaker body 101;
specifically, the three current transformer bodies 106 in the utility model are devices for converting large current into small current signals which can be acquired by an electronic circuit, the small current can be provided for current signal sources matched with other devices such as a multifunctional instrument, an ammeter, a motor starter, a comprehensive protection device and the like, and particularly, the current transformer bodies 106 are matched with two data wires to provide current sampling interfaces for the other devices, so that other devices of the complete set of cabinets which need to use the current transformer bodies 106 do not need to additionally install the current transformer bodies 106.
Example two
Referring to fig. 1-4, the present utility model provides a technical solution: the cover body 102 is connected to one end of the circuit breaker body 101 through a connecting mechanism 200, the connecting mechanism 200 comprises mounting grooves 201 symmetrically formed in one end of the circuit breaker body 101, auxiliary plates 202 are fixed on the outer walls of the left side and the right side of the circuit breaker body 101, a sliding groove 203 is formed in one end of the auxiliary plates 202, a sliding block 204 is connected in the sliding groove 203 in a sliding mode, and clamping strips 205 are fixed at one end of the sliding block 204; the left side, the right side of lid 102 has all seted up draw-in hole one 206, draw-in hole two 207 with draw-in hole one 206 matched with are seted up to mounting groove 201 a side wall, draw-in bar 205 joint is in draw-in hole one 206, draw-in hole two 207 is inside, spout 203 one side inner wall is fixed with telescopic link 208, the one end that spout 203 one side inner wall was kept away from to telescopic link 208 is fixed with slider 204, telescopic link 208 outer wall is equipped with compression spring 209, compression spring 209 one end is fixed with spout 203 one side inner wall, the compression spring 209 other end is fixed with slider 204, accessory plate 202 one end is fixed with spacing 210, lid 102 bottom and spacing 210 butt.
In this embodiment, due to the provision of the limiting strip 210, the limiting strip 210 can avoid the possibility of falling off the cover 102 due to gravity, thereby improving the stability of the cover 102.
Specifically, the mounting mode of the cover 102 is changed, specifically, the telescopic rod 208 is driven to perform extension movement under the action of the elastic force of the compression spring 209, the sliding block 204 is pushed to move in the sliding groove 203 when the telescopic rod 208 performs extension movement, and finally the clamping strip 205 is clamped into the first clamping hole 206 and the second clamping hole 207 to fix the cover 102, so that when the cover 102 is dismounted, the sliding block 204 is driven to perform reaction movement in the sliding groove 203, at the moment, the telescopic rod 208 and the compression spring 209 perform corresponding contraction movement, and the cover 102 can be dismounted after the clamping strip 205 is separated from the first clamping hole 206 and the second clamping hole 207.
Working principle:
firstly, a user can provide a current sampling interface for other equipment by utilizing the current transformer body 106 to cooperate with two data wires, and as the three current transformer bodies 106 are provided with devices for converting large current into small current signals which can be collected by an electronic circuit, the small current can be provided for current signal sources matched with other equipment such as a multifunctional instrument, an ammeter, a motor starter, a comprehensive protection device and the like, so that other equipment of the complete set of cabinets which need to use the current transformer bodies 106 do not need to additionally install the current transformer bodies 106;
secondly, by changing the mounting mode of the cover 102, specifically, the telescopic rod 208 is driven to stretch under the action of the elastic force of the compression spring 209, the sliding block 204 is pushed to move in the sliding groove 203 when the telescopic rod 208 stretches, and finally the clamping strip 205 is clamped in the first clamping hole 206 and the second clamping hole 207 to fix the cover 102, so that when the cover 102 is dismounted, the sliding block 204 is driven to perform reactive movement in the sliding groove 203, and at the moment, the telescopic rod 208 and the compression spring 209 can perform corresponding shrinkage movement, and after the clamping strip 205 is separated from the first clamping hole 206 and the second clamping hole 207, the cover 102 can be dismounted.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (7)
1. A thermo-magnetic molded case circuit breaker, comprising:
the circuit breaker comprises a circuit breaker body (101), wherein a tripping device (104) and metal sheets (105) arranged on two sides of the tripping device (104) are arranged at one end of the circuit breaker body (101);
three current transformer bodies (106) are arranged at one end of the breaker body (101), and the three current transformer bodies (106) are respectively a fast saturation current transformer, a Hall current transformer and a Rogowski coil current transformer;
one end of the breaker body (101) is provided with a cover body (102) for covering a tripping device (104), a metal sheet (105) and a current transformer body (106);
one end of the cover body (102) is provided with an operation groove (103) for the trip (104).
2. The thermo-magnetic molded case circuit breaker according to claim 1, wherein the three current transformer bodies (106) are connected with two data lines, and the two data lines are used for connecting the current transformer bodies (106) with external equipment.
3. The thermomagnetic molded case circuit breaker according to claim 1, wherein the outer walls of the left and right sides of the circuit breaker body (101) are provided with heat conducting plates (107), and one end of the heat conducting plates (107) far away from the outer wall of the circuit breaker body (101) is provided with heat radiating fins (108).
4. A thermo-magnetic molded case circuit breaker according to claim 3, characterized in that the junction of the heat conducting plate (107) and the outer wall of the circuit breaker body (101) is coated with heat conducting silicone grease.
5. The thermomagnetic molded case circuit breaker according to claim 1, wherein the cover body (102) is connected to one end of the circuit breaker body (101) through a connecting mechanism (200), the connecting mechanism (200) comprises mounting grooves (201) symmetrically formed in one end of the circuit breaker body (101), auxiliary plates (202) are fixed on outer walls of the left side and the right side of the circuit breaker body (101), a sliding groove (203) is formed in one end of each auxiliary plate (202), a sliding block (204) is slidably connected in the sliding groove (203), and clamping strips (205) are fixed at one end of each sliding block (204);
the left side and the right side of the cover body (102) are provided with a first clamping hole (206), one side wall of the mounting groove (201) is provided with a second clamping hole (207) matched with the first clamping hole (206), and the clamping strip (205) is clamped inside the first clamping hole (206) and the second clamping hole (207).
6. The thermomagnetic molded case circuit breaker according to claim 5, wherein a telescopic rod (208) is fixed on an inner wall of one side of the sliding groove (203), one end of the telescopic rod (208) far away from the inner wall of one side of the sliding groove (203) is fixed with the sliding block (204), a compression spring (209) is arranged on an outer wall of the telescopic rod (208), one end of the compression spring (209) is fixed with the inner wall of one side of the sliding groove (203), and the other end of the compression spring (209) is fixed with the sliding block (204).
7. The thermomagnetic molded case circuit breaker according to claim 5, wherein a limit bar (210) is fixed at one end of the auxiliary plate (202), and the bottom of the cover body (102) is abutted against the limit bar (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223231133.9U CN218975366U (en) | 2022-12-01 | 2022-12-01 | Thermomagnetic molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223231133.9U CN218975366U (en) | 2022-12-01 | 2022-12-01 | Thermomagnetic molded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218975366U true CN218975366U (en) | 2023-05-05 |
Family
ID=86167587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223231133.9U Active CN218975366U (en) | 2022-12-01 | 2022-12-01 | Thermomagnetic molded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218975366U (en) |
-
2022
- 2022-12-01 CN CN202223231133.9U patent/CN218975366U/en active Active
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