CN117373852A - Circuit breaker with self-checking function - Google Patents
Circuit breaker with self-checking function Download PDFInfo
- Publication number
- CN117373852A CN117373852A CN202311469188.XA CN202311469188A CN117373852A CN 117373852 A CN117373852 A CN 117373852A CN 202311469188 A CN202311469188 A CN 202311469188A CN 117373852 A CN117373852 A CN 117373852A
- Authority
- CN
- China
- Prior art keywords
- water tank
- storage water
- circuit breaker
- wall
- heat exchange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 40
- 238000009434 installation Methods 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 15
- 238000005057 refrigeration Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 9
- 241000446313 Lamella Species 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000110 cooling liquid Substances 0.000 description 21
- QHZSDTDMQZPUKC-UHFFFAOYSA-N 3,5-dichlorobiphenyl Chemical compound ClC1=CC(Cl)=CC(C=2C=CC=CC=2)=C1 QHZSDTDMQZPUKC-UHFFFAOYSA-N 0.000 description 5
- 239000002826 coolant Substances 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The application relates to the field of circuit breakers and discloses a circuit breaker with a self-checking function, which comprises a breaker shell, a mounting shell, a detection module and a heat exchange mechanism, wherein the mounting shell is fixedly arranged on the side wall of the breaker shell, the detection module comprises a PCB (printed circuit board), a logic controller and a temperature sensor, the logic controller and the temperature sensor are both integrated on the PCB, the PCB is fixedly arranged on the inner wall of the mounting shell, a temperature information acquisition end of the temperature sensor extends to the inner cavity of the breaker shell, the heat exchange mechanism comprises a heat exchange tube and a storage water tank, the heat exchange tube is fixedly arranged in the inner cavity of the breaker shell, the inner cavity of the heat exchange tube is communicated with the inner cavity of the storage water tank, and the outer wall of the storage water tank is fixedly provided with a mounting block; according to the circuit breaker protection device, through the cooperation of the structure, heat energy of the inner cavity of the circuit breaker shell can be taken away, the protection of the circuit breaker is realized, the service life is prolonged, and then the circuit breaker can be accelerated to recover to a proper working state.
Description
Technical Field
The application relates to the technical field of circuit breakers, in particular to a circuit breaker with a self-checking function.
Background
A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time.
The utility model discloses a chinese patent of publication No. CN214152816U, wherein discloses a moulded case circuit breaker with self-checking function, which comprises a housin, first mounting hole and second mounting hole have been seted up respectively to the top and bottom front end surface of casing, and the inboard of second mounting hole is provided with binding post, the front end surface intermediate position of casing is through welded mode fixedly connected with connecting plate, and the inboard of connecting plate is provided with the nameplate of connection at casing front end surface, the inboard of nameplate is provided with the switch, and the below of switch is provided with the temperature sensor that is located the connecting plate inside, temperature sensor's right side is provided with reset key, and the below of reset key is provided with the current transformer that is located the connecting plate outside. This moulded case circuit breaker with self-checking function can be by oneself inspect the internal device to ensure that the warning that can be timely when damage appears in the internal device, in order to avoid appearing circuit incident, very big increase circuit safety in utilization.
In view of the above related art, the inventor believes that, during the use process, the electronic component inside the circuit breaker works to generate a lot of heat, and though the device can detect the temperature of the contact and give an alarm, the heat generated during normal use can remain in the inner cavity of the circuit breaker, and the heat dissipation performance inside the closed circuit breaker is poor, so that the time required for the circuit breaker to recover to a proper working state is too long, and the use is affected.
The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
In order to solve the problem of low heat dissipation efficiency in the normal use process, the application provides a circuit breaker with self-checking function.
The application provides a circuit breaker with self-checking function adopts following technical scheme:
a circuit breaker with self-checking function comprises a breaker shell, a mounting shell, a detection module and a heat exchange mechanism, wherein the mounting shell is fixedly arranged on the side wall of the breaker shell.
The detection module comprises a PCB, a logic controller and a temperature sensor, wherein the logic controller and the temperature sensor are integrated on the PCB, and the PCB is fixedly arranged on the inner wall of the installation shell.
The temperature information acquisition end of the temperature sensor extends to the inner cavity of the circuit breaker shell.
The heat exchange mechanism comprises a heat exchange tube and a storage water tank, wherein the heat exchange tube is fixedly arranged in the inner cavity of the circuit breaker shell, and the inner cavity of the heat exchange tube is communicated with the inner cavity of the storage water tank.
Preferably, the outer wall fixed mounting of storage water tank has the installation piece, and the inner wall fixedly connected with circulating water pump of installation piece, circulating water pump's input extends to the inner chamber of storage water tank, and circulating water pump's output and heat exchange tube intercommunication.
Preferably, the outer wall of the storage water tank is fixedly provided with a refrigerating sheet, the cold end of the refrigerating sheet extends to the inner cavity of the storage water tank and is positioned in the liquid level, and the hot end of the refrigerating sheet extends to the outer wall of the storage water tank.
Preferably, the refrigerating sheets are arranged in a plurality, the plurality of refrigerating sheets are mutually parallel, the refrigerating sheets are electrically connected with the logic controller, and the inner wall of the storage water tank is fixedly provided with the detection tube.
Preferably, the inner wall of the storage water tank is fixedly provided with an elastic membrane flap, the bottom surface of the storage water tank is provided with a through hole for ventilation, and the through hole is positioned under the elastic membrane flap.
Preferably, the bottom surface fixedly connected with supporting spring of elastic membrane lamella, the other end of supporting spring and the bottom surface fixed connection of storage water tank.
Preferably, the outer wall of the storage water tank is provided with a liquid inlet hole, the inner wall of the liquid inlet hole is provided with a sealing plug through the fit of internal and external threads, the outer wall of the storage water tank is provided with a liquid outlet hole, and the inner wall of the liquid outlet hole is connected with a liquid outlet plug through the fit of internal and external threads.
Preferably, the side wall of the storage water tank is fixedly provided with an observation plate, and sealing rings are arranged on the outer sides of the liquid inlet holes and the liquid outlet holes.
In summary, the present application includes the following beneficial technical effects:
1. the inner cavity of the storage water tank is used for storing cooling liquid, the heat exchange pipe is fixedly arranged in the inner cavity of the circuit breaker shell, the heat exchange pipe is a hollow ceramic pipe and is communicated with the inner cavity of the storage water tank, the water pressure at the two ends of the heat exchange pipe is regulated, so that the storage water tank is controlled to circularly flow in the inner cavity of the heat exchange pipe, heat energy of the inner cavity of the circuit breaker shell is taken away, the protection of the circuit breaker is realized, the service life of the circuit breaker is prolonged, and the circuit breaker can be further accelerated to be restored to a proper working state;
2. through setting up the refrigeration piece, can cool down the coolant liquid through the refrigeration piece when summer work to improve the efficiency of heat transfer, when winter work, logic controller can control the electric current direction through the refrigeration piece, thereby adjust the cold junction and the hot junction of refrigeration piece, when the temperature of coolant liquid is close the freezing point, heats through the refrigeration piece, can prevent as far as that the coolant liquid from freezing, adapt to different environment and use.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a heat exchange tube according to the present invention;
FIG. 3 is a cross-sectional view of a storage tank of the present invention;
fig. 4 is a schematic view of the internal structure of the installation housing in the present invention.
Reference numerals illustrate: 1. a circuit breaker housing; 2. a mounting block; 3. a circulating water pump; 4. sealing the plug; 5. a cooling sheet; 6. a storage water tank; 7. a liquid outlet plug; 8. an observation plate; 9. a heat exchange tube; 10. mounting a shell; 11. an elastic membrane flap; 12. a detection tube; 13. a support spring; 14. and a PCB board.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses a circuit breaker with a self-checking function. Referring to fig. 1-4, a circuit breaker with self-checking function includes a breaker housing 1, a mounting housing 10, a detection module and a heat exchange mechanism, wherein a contact system, an arc extinguishing system, an operating mechanism and a release are arranged in the breaker housing 1, so that a common breaker for household use is formed, and the specific principle of opening and closing a circuit is not repeated here.
The installation shell 10 is fixedly installed on the side wall of the breaker shell 1, the installation shell 10 is installed on the side wall of the breaker shell 1 through screws, and the installation shell 10 can be detached during maintenance.
The detection module comprises a PCB 14, a logic controller and a temperature sensor, wherein the logic controller and the temperature sensor are integrated on the PCB 14, the logic controller is a common MCU, the PCB 14 is fixedly arranged on the inner wall of the installation shell 10, and the installation shell 10 provides installation space and protection for the PCB 14.
The temperature information acquisition end of the temperature sensor extends to the inner cavity of the circuit breaker shell 1, and the temperature of the inner cavity of the circuit breaker shell 1 is monitored in real time through the temperature sensor.
The buzzer is integrated on the PCB 14 and is electrically connected with the logic controller, when the internal temperature of the circuit breaker shell 1 exceeds a safety value, a signal is fed back to the logic controller, and the logic controller controls the buzzer to give an alarm, so that the self-checking of the circuit breaker is realized.
The heat exchange mechanism comprises a heat exchange tube 9 and a storage water tank 6, and the inner cavity of the storage water tank 6 is used for storing cooling liquid.
The heat exchange tube 9 is fixedly installed in the inner cavity of the breaker housing 1, and the inner cavity of the heat exchange tube 9 is communicated with the inner cavity of the storage water tank 6, and as the heat exchange tube 9 needs to extend to the inner cavity of the breaker housing 1, a plurality of electronic elements are arranged in the breaker housing 1, in the embodiment, the heat exchange tube 9 is made of ceramic materials with heat conducting performance and insulating effect.
When the circuit breaker works, the water pressure at the two ends of the heat exchange tube 9 is regulated, so that the storage water tank 6 is controlled to circularly flow in the inner cavity of the heat exchange tube 9, heat energy in the inner cavity of the circuit breaker shell 1 is taken away, the service life of the circuit breaker is prolonged, when the temperature in the inner cavity of the circuit breaker shell 1 exceeds a safety value and an alarm is sent out, the heat dissipation efficiency in the circuit breaker is improved through circularly flowing cooling liquid, and the circuit breaker can be accelerated to recover to a proper working state.
The outer wall fixed mounting of storage water tank 6 has installation piece 2, and the inner wall fixedly connected with circulating water pump 3 of installation piece 2, and the inner wall of installation piece 2 is provided with the circuit board that is used for controlling circulating water pump 3 work, and the signal input part of circuit board is connected with the output of PCB board 14.
The input end of the circulating water pump 3 extends to the inner cavity of the storage water tank 6, the output end of the circulating water pump 3 is communicated with the heat exchange tube 9, and the circulating flow of the cooling liquid is controlled through the circulating water pump 3.
In this embodiment, the rotation speed of the motor in the circulating water pump 3 is controlled by the logic controller, specifically, the temperature sensor feeds back the temperature inside the breaker housing 1 in real time, and along with the temperature rise detected by the temperature sensor, the logic controller controls the rotation speed of the motor of the circulating water pump 3 to rise, so that the heat exchange efficiency is improved.
The outer wall fixed mounting of storage water tank 6 has refrigeration piece 5, and refrigeration piece 5 is common semiconductor refrigeration piece, and its specific model can be according to the model of circuit breaker when in actual use and select, just need not do too much here and repeated.
The cold junction of refrigeration piece 5 extends to the inner chamber of storage water tank 6, and is located the liquid level, and the hot junction of refrigeration piece 5 extends to the outer wall of storage water tank 6, can cool down the coolant liquid through refrigeration piece 5 to improve the efficiency of heat transfer.
The cooling fins 5 are arranged in a plurality, the cooling fins 5 are parallel to each other, and the contact area of the cooling liquid and the cooling fins 5 is increased, so that the heat dissipation efficiency is improved.
Because the region of China is wide, the outdoor temperature in winter in the cold region of north is lower, in order to prevent the cooling liquid from freezing, the refrigerating plate 5 is electrically connected with the logic controller, and the logic controller can control the current direction passing through the refrigerating plate 5, so that the cold end and the hot end of the refrigerating plate 5 are adjusted, and when the temperature of the cooling liquid is close to the freezing point, the cooling liquid is heated through the refrigerating plate 5, so that the cooling liquid can be prevented from freezing as much as possible.
The inner wall of the storage water tank 6 is fixedly provided with a detection tube 12, and the detection tube 12 is a common thermistor and is used for detecting the temperature of the cooling liquid and controlling the reverse direction of the current passing through the refrigerating sheet 5 through a logic controller.
An elastic membrane flap 11 is fixedly arranged on the inner wall of the storage water tank 6, and the elastic membrane flap 11 is common elastic rubber.
The through hole that is used for ventilative is offered to the bottom surface of storage water tank 6, and the through hole is located under the elastic membrane lamella 11, and along with the rising of temperature, the coolant liquid vaporization of storage water tank 6 inner chamber in hot summer, through the elasticity of elastic membrane lamella 11 this moment, can prevent that storage water tank 6 inner wall from deformation, improves the security of using.
The bottom surface fixedly connected with supporting spring 13 of elastic membrane lamella 11, the other end of supporting spring 13 and the bottom surface fixed connection of storage water tank 6 support elastic membrane lamella 11 through supporting spring 13 to elastic membrane lamella 11 is protruding to storage water tank 6 inside, in order to compress elastic membrane lamella 11 when needing, prevents storage water tank 6 deformation, improves application scope.
The outer wall of the storage water tank 6 is provided with a liquid inlet hole, the inner wall of the liquid inlet hole is provided with a sealing plug 4 through the fit of internal and external threads, and cooling liquid can be filled into the inner cavity of the storage water tank 6 through the liquid inlet hole.
The outer wall of the storage water tank 6 is provided with a liquid discharge hole, the inner wall of the liquid discharge hole is connected with a liquid outlet plug 7 through internal and external screw threads in a matching manner, and old cooling liquid in the inner cavity of the storage water tank 6 can be discharged through the liquid discharge hole.
Because the cooling liquid belongs to the synthetic mixed liquid, the cooling liquid has a certain shelf life, the cooling liquid needs to be replaced periodically, when the cooling liquid is replaced, the plugging plug 4 is screwed out firstly, then the liquid outlet plug 7 is screwed out, and the liquid outlet Kong Paiye is used for maintaining the air pressure balance of the inner cavity of the storage water tank 6, so that the cooling liquid is discharged conveniently.
After the cooling liquid is discharged, the liquid outlet plug 7 is screwed into the liquid outlet hole, the cooling liquid is injected into the liquid inlet hole, and then the sealing plug 4 is screwed in again, so that the replacement of the cooling liquid is completed.
The side wall of the storage water tank 6 is fixedly provided with an observation plate 8, and the observation plate 8 is a common transparent acrylic plate so as to observe the liquid level of the cooling liquid of the storage water tank 6.
Sealing rings are arranged on the outer sides of the liquid inlet holes and the liquid outlet holes, the sealing rings are common rubber rings, and after the liquid outlet plug 7 and the plugging plug 4 are screwed, the inner cavity of the storage water tank 6 is kept sealed.
The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;
secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;
finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. A circuit breaker with self-checking function, characterized in that: the device comprises a breaker shell (1), a mounting shell (10), a detection module and a heat exchange mechanism, wherein the mounting shell (10) is fixedly arranged on the side wall of the breaker shell (1);
the detection module comprises a PCB (14), a logic controller and a temperature sensor, wherein the logic controller and the temperature sensor are integrated on the PCB (14), and the PCB (14) is fixedly arranged on the inner wall of the installation shell (10);
the temperature information acquisition end of the temperature sensor extends to the inner cavity of the breaker shell (1);
the heat exchange mechanism comprises a heat exchange tube (9) and a storage water tank (6), wherein the heat exchange tube (9) is fixedly arranged in the inner cavity of the circuit breaker shell (1), and the inner cavity of the heat exchange tube (9) is communicated with the inner cavity of the storage water tank (6).
2. A circuit breaker with self-checking function according to claim 1, characterized in that: the outer wall fixed mounting of storage water tank (6) has installation piece (2), the inner wall fixedly connected with circulating water pump (3) of installation piece (2), the input of circulating water pump (3) extends to the inner chamber of storage water tank (6), the output of circulating water pump (3) with heat exchange tube (9) intercommunication.
3. A circuit breaker with self-checking function according to claim 2, characterized in that: the outer wall fixed mounting of storage water tank (6) has refrigeration piece (5), the cold junction of refrigeration piece (5) extends to the inner chamber of storage water tank (6), and is located within the liquid level, the hot junction of refrigeration piece (5) extends to the outer wall of storage water tank (6).
4. A circuit breaker with self-checking function according to claim 3, characterized in that: the refrigerating sheets (5) are arranged in a plurality, the refrigerating sheets (5) are parallel to each other, the refrigerating sheets (5) are electrically connected with the logic controller, and a detection tube (12) is fixedly arranged on the inner wall of the storage water tank (6).
5. A circuit breaker with self-checking function according to claim 4, characterized in that: the inner wall of the storage water tank (6) is fixedly provided with an elastic membrane flap (11), the bottom surface of the storage water tank (6) is provided with a through hole for ventilation, and the through hole is positioned under the elastic membrane flap (11).
6. A circuit breaker with self-checking function according to claim 5, characterized in that: the bottom surface fixedly connected with supporting spring (13) of elastic membrane lamella (11), the other end of supporting spring (13) with the bottom surface fixed connection of storage water tank (6).
7. A circuit breaker with self-checking function according to claim 6, characterized in that: the liquid inlet is formed in the outer wall of the storage water tank (6), the sealing plug (4) is mounted on the inner wall of the liquid inlet through internal and external screw threads, the liquid discharge hole is formed in the outer wall of the storage water tank (6), and the liquid outlet plug (7) is connected to the inner wall of the liquid discharge hole through the internal and external screw threads.
8. A circuit breaker with self-checking function according to claim 7, characterized in that: the side wall of the storage water tank (6) is fixedly provided with an observation plate (8), and sealing rings are arranged on the outer sides of the liquid inlet holes and the liquid outlet holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311469188.XA CN117373852A (en) | 2023-11-07 | 2023-11-07 | Circuit breaker with self-checking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311469188.XA CN117373852A (en) | 2023-11-07 | 2023-11-07 | Circuit breaker with self-checking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117373852A true CN117373852A (en) | 2024-01-09 |
Family
ID=89402262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311469188.XA Pending CN117373852A (en) | 2023-11-07 | 2023-11-07 | Circuit breaker with self-checking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117373852A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118213226A (en) * | 2024-03-27 | 2024-06-18 | 万马科技股份有限公司 | An intelligent sensing vacuum circuit breaker |
-
2023
- 2023-11-07 CN CN202311469188.XA patent/CN117373852A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118213226A (en) * | 2024-03-27 | 2024-06-18 | 万马科技股份有限公司 | An intelligent sensing vacuum circuit breaker |
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