Circuit breaker based on electric power protection

Abstract

The invention discloses a circuit breaker based on power protection, and relates to the technical field of circuit breakers, and the circuit breaker comprises shielding net coamings which are installed at the upper end and the lower end of the front end face of a circuit breaker main body through clamping grooves, and the upper end face and the lower end face of the circuit breaker main body are provided with limiting plates through clamping grooves. According to the device, the connection part of the device and a wire can be sealed by installing a shielding net coaming and a limiting plate, so that liquid or dust is prevented from making contact with a wire connector, a conductive contact and a clamping contact are prevented from being rusted, it is guaranteed that the conductive contact and the clamping contact make good contact with the wire, and the practicability of the device is enhanced; air can be blown into the exteriors of the conductive contact, the clamping contact and the clamping screw by installing the air conveying copper pipe, so that the temperatures of the conductive contact, the clamping contact, the clamping screw and the wire can be rapidly reduced, heat accumulation of the device is avoided, high-temperature burning of the device is effectively avoided, the practicability of the device is enhanced, and the safety of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a circuit breaker for power protection. Background Art

[0002] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions, and closing, carrying, and interrupting current under abnormal circuit conditions within a specified timeframe. Circuit breakers are categorized as high-voltage and low-voltage based on their scope of use. The distinction between high and low voltage is somewhat ambiguous, with devices above 3kV generally considered high-voltage. Circuit breakers are used to distribute electrical energy, infrequently start asynchronous motors, and protect power lines and motors. They automatically disconnect circuits in the event of severe overloads, short circuits, or undervoltage faults. Their functionality is equivalent to a combination of a fuse-type switch and an over- or under-temperature relay. Furthermore, interrupting fault current generally requires no component changes. They have been widely used. Power distribution is a crucial component in the generation, transmission, and use of electricity. Power distribution systems include transformers and various high- and low-voltage electrical equipment. Low-voltage circuit breakers are widely used.

[0003] However, when the existing circuit breaker is in use, the current flows through the wire terminals and the circuit breaker contacts, which will generate a lot of heat. As a result, when the circuit breaker is used in a high-temperature environment, heat is easily accumulated at the connection between the wire terminals and the circuit breaker contacts, which accelerates the aging of the circuit breaker and makes the wire terminals and the circuit breaker contacts easily burn out due to high temperature, affecting the normal use of the circuit breaker. Therefore, it does not meet the existing needs. In this regard, we propose a circuit breaker based on power protection. Summary of the Invention

[0004] The object of the present invention is to provide a circuit breaker for power protection, so as to solve the problem proposed in the above-mentioned background art that when the circuit breaker is in use, the current flows through the wire terminals and the circuit breaker contacts, which generates a lot of heat. As a result, when the circuit breaker is used in a high-temperature environment, heat is easily accumulated at the connection between the wire terminals and the circuit breaker contacts, which accelerates the aging of the circuit breaker and makes the wire terminals and the circuit breaker contacts easily burn out due to high temperature, affecting the normal use of the circuit breaker.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a circuit breaker for power protection, comprising a circuit breaker body A shielding mesh enclosure is installed at the upper and lower ends of the front end surface of the circuit breaker body through a slot. Limit plates are installed on the upper and lower end surfaces of the circuit breaker body through slots. A fan mounting plate is installed inside the rear end surface of the circuit breaker body, and an air blowing fan is installed on the rear end surface of the fan mounting plate. Gas copper pipes are installed on both sides of the circuit breaker body, and a mounting plate is installed on the outside of one end of the gas copper pipe. Gas filter mesh plates are fixedly installed at the rear ends of both sides of the circuit breaker body, and a bottom sealing plate is fixedly installed on the rear end surface of the gas filter mesh plates. The heat dissipation fin plate is fixedly mounted on the outside of the shielding net enclosure plate, and a cleaning bracket is provided on the outside of the shielding net enclosure plate. The cleaning bracket is slidably connected to the heat dissipation fin plate through a card slot. Linkage brackets are installed on both sides of the circuit breaker body, and the linkage bracket is fixedly connected to the limit plate. A cleaning plate is installed at one end of the linkage bracket, and the cleaning plate is welded to the cleaning bracket. Cleaning bristles are installed on the inner side of the cleaning plate, and the cleaning bristles are fixedly connected to the cleaning plate.

[0006] Preferably, a fixed rubber ring is installed on the outside of the limiting plate, and the fixed rubber ring is glued to the limiting plate.

[0007] Preferably, a clamping rubber ring is installed on the outside of the shielding net enclosure, and the clamping rubber ring is glued to the shielding net enclosure.

[0008] Preferably, conductive contacts are installed on the rear end surfaces inside the upper and lower ends of the circuit breaker body, and the conductive contacts are fixedly connected to the circuit breaker body.

[0009] Preferably, the fan mounting plate is fixedly connected to the circuit breaker body, the air blowing fan is fixedly connected to the fan mounting plate, the gas delivery copper pipe is connected to the circuit breaker body through a slot, the mounting plate is fixedly connected to the circuit breaker body, and the cleaning bracket is fixedly connected to the limit plate.

[0010] Preferably, clamping contacts are installed on the front end surfaces inside the upper and lower ends of the circuit breaker body, and the clamping contacts are slidably connected to the circuit breaker body through a slot.

[0011] Preferably, a clamping screw is installed on the front end surface of the clamping contact, the clamping screw is rotatably connected to the clamping contact, and the clamping screw is connected to the circuit breaker body through a thread.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can seal the connection part between the device and the wire by installing a shielding net enclosure and a limit plate, thereby preventing liquid or dust from contacting the wire joint, avoiding rusting of the conductive contacts and the clamping contacts, ensuring good contact between the conductive contacts and the clamping contacts and the wires, and enhancing the practicality of the device. The installation of a gas copper pipe can blow air into the outside of the conductive contacts, the clamping contacts, and the clamping screws, thereby quickly reducing the temperature of the conductive contacts, the clamping contacts, the clamping screws, and the wires, avoiding heat accumulation in the device, effectively preventing the device from burning out due to high temperature, enhancing the practicality of the device, and improving the safety of the device. 2. The present invention can increase the contact area between the device and the air by installing the heat dissipation fins, thereby improving the heat exchange efficiency between the device and the air, improving the heat dissipation capacity of the device, and enhancing the heat dissipation effect of the device. Installing the cleaning bracket allows the staff to pull the limit plate when repairing the device, so that the limit plate can drive the cleaning bracket to move, and then the cleaning bracket can slide on the outside of the heat dissipation fin, so that the outside of the heat dissipation fin is kept clean, ensuring the heat exchange efficiency between the heat dissipation fin and the air. Installing the cleaning plate allows the staff to pull the limit plate when repairing the device, so that the limit plate can drive the cleaning bracket to move through the linkage bracket, and then the cleaning bristles on the inside of the cleaning bracket can clean the air filter mesh plate, so that the air filter mesh plate is kept clean. Installing the fixed rubber ring and the clamping rubber ring can clamp the wire to prevent the wire from shaking, thereby enhancing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of a circuit breaker for power protection according to the present invention; Figure 2 This is an exploded diagram of the structure of a circuit breaker for power protection according to the present invention; Figure 3 This is a rear view schematic diagram of the internal structure of a circuit breaker for power protection according to the present invention; Figure 4 This is a position distribution diagram of the conductive contacts and the clamping contacts inside the circuit breaker body of the present invention; Figure 5 A three-dimensional diagram of the gas transmission copper pipe of the present invention; Figure 6 This is a diagram showing the coordination between the shielding net enclosure and the limiting plate of the present invention.

[0014] In the figure: 1. Circuit breaker body; 2. Shielding mesh panel; 3. Limiting plate; 4. Heat dissipation fin plate; 5. Cleaning bracket; 6. Fixing rubber ring; 7. Clamping rubber ring; 8. Air filter mesh plate; 9. Mounting plate; 10. Gas transmission copper pipe; 11. Cleaning plate; 12. Linkage bracket; 13. Cleaning brush; 14. Conductive contact; 15. Clamping contact; 16. Clamping screw; 17. Fan mounting plate; 18. Blowing fan; 19. Bottom sealing plate. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] See also Figure 1-6 , an embodiment of the present invention provides: a circuit breaker based on power protection, comprising a circuit breaker body 1 The shielding net enclosure 2 is installed at the upper and lower ends of the front end face of the circuit breaker body 1 through the card slot. The upper and lower end faces of the circuit breaker body 1 are both installed with limit plates 3 through the card slot. The installation of the shielding net enclosure 2 and the limit plate 3 can seal the device and the wire connection part, thereby preventing liquid or dust from contacting the wire joint, avoiding rusting of the conductive contact 14 and the clamping contact 15, ensuring good contact between the conductive contact 14 and the clamping contact 15 and the wire, and enhancing the practicality of the device. A fan mounting plate 17 is installed inside the rear end face of the circuit breaker body 1, and a blowing fan 18 is installed on the rear end face of the fan mounting plate 17. Gas copper tubes 10 are installed on both sides of the circuit breaker body 1. The gas copper tubes 10 can be installed to blow air into the outside of the conductive contacts 14, the clamping contacts 15 and the clamping screws 16, thereby quickly reducing the temperature of the conductive contacts 14, the clamping contacts 15, the clamping screws 16 and the wires, avoiding heat accumulation in the device, effectively preventing the device from being burned by high temperature, enhancing the practicality of the device, and improving the safety of the device. A mounting plate 9 is installed on the outside of one end of the gas copper tube 10, and a gas filter mesh plate 8 is fixedly installed on the rear end of both sides of the circuit breaker body 1. The rear end surface of the gas filter mesh plate 8 is fixedly installed with a bottom sealing plate 19; The heat dissipation fin plate 4 is fixedly installed on the outside of the shielding net enclosure 2. The installation of the heat dissipation fin plate 4 can increase the contact area between the device and the air, thereby improving the heat exchange efficiency between the device and the air, improving the heat dissipation capacity of the device, and enhancing the heat dissipation effect of the device. A cleaning bracket 5 is provided on the outside of the shielding net enclosure 2. When the cleaning bracket 5 is installed, the staff can pull the limit plate 3 when repairing the device to make the limit plate 3 drive the cleaning bracket 5 to move, thereby making the cleaning bracket 5 slide on the outside of the heat dissipation fin plate 4, so that the outside of the heat dissipation fin plate 4 is kept clean, ensuring the heat exchange efficiency between the heat dissipation fin plate 4 and the air, and the cleaning bracket 5 and the heat dissipation fin 4 are connected by the card The groove is slidably connected, and linkage brackets 12 are installed on both sides of the circuit breaker body 1. The linkage bracket 12 is fixedly connected to the limit plate 3. A cleaning plate 11 is installed at one end of the linkage bracket 12. Installing the cleaning plate 11 allows the staff to pull the limit plate 3 when repairing the device, so that the limit plate 3 can drive the cleaning bracket 5 to move through the linkage bracket 12, and then the cleaning bristles 13 on the inside of the cleaning bracket 5 clean the air filter mesh plate 8 to keep the air filter mesh plate 8 clean. The cleaning plate 11 is welded to the cleaning bracket 5, and a cleaning bristle 13 is installed on the inside of the cleaning plate 11, and the cleaning bristles 13 are fixedly connected to the cleaning plate 11.

[0017] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , The outside of the limit plate 3 is equipped with a fixed rubber ring 6, which is glued to the limit plate 3. The fixed rubber ring 6 and the clamping rubber ring 7 can be installed to clamp the wire to prevent the wire from shaking and enhance the practicality of the device. The outside of the shielding net enclosure 2 is equipped with a clamping rubber ring 7, which is glued to the shielding net enclosure 2. The rear end surfaces of the upper and lower ends of the circuit breaker body 1 are equipped with conductive contacts 14, which are fixedly connected to the circuit breaker body 1. The fan mounting plate 17 is fixedly connected to the circuit breaker body 1, and the blower The air fan 18 is fixedly connected to the fan mounting plate 17, the gas delivery copper pipe 10 is connected to the circuit breaker body 1 through a slot, the mounting plate 9 is fixedly connected to the circuit breaker body 1, the cleaning bracket 5 is fixedly connected to the limit plate 3, and the front end surfaces inside the upper and lower ends of the circuit breaker body 1 are both installed with clamping contacts 15, the clamping contacts 15 are slidingly connected to the circuit breaker body 1 through a slot, and the front end surface of the clamping contact 15 is installed with a clamping screw 16, the clamping screw 16 is rotatably connected to the clamping contact 15, and the clamping screw 16 is connected to the circuit breaker body 1 through a thread.

[0018] Working principle: When in use, the staff installs the contact of the wire between the conductive contact 14 and the clamping contact 15, and tightens the clamping screw 16 so that the clamping screw 16 drives the clamping contact 15 to clamp the wire contact. Then the staff installs the shielding net enclosure 2 at the upper and lower ends of the front end of the circuit breaker body 1 through the card slot, so that the fixed rubber ring 6 and the clamping rubber ring 7 clamp the wire. When the device is in use, the air blowing fan 18 draws the outside air through the air filter mesh plate 8, and then blows it out through the air supply copper pipe 10, so that the air quickly flows through the conductive contact 14, the clamping contact 15, the clamping screw 16 and the wire contact. , thereby preventing the device from generating heat accumulation. When the staff repairs the device, they remove the limit plate 3, so that the limit plate 3 drives the cleaning bracket 5 and the linkage bracket 12 to move when moving, so that the cleaning bristles 13 brush the outside of the air filter mesh plate 8, so that the cleaning bracket 5 scrapes off the dust adsorbed on the outside of the heat dissipation fin plate 4 to ensure the cleanliness of the device. The device is installed with a shielding net enclosure 2 and a limit plate 3 to seal the device and the wire connection part, thereby preventing liquid or dust from contacting the wire joint, avoiding rusting of the conductive contact 14 and the clamping contact 15, and ensuring that the conductive contact 14 and the clamping contact 15 are in contact with the conductive contact. The wires have good contact, which enhances the practicality of the device. Installing the gas copper pipe 10 can blow air into the outside of the conductive contact 14, the clamping contact 15 and the clamping screw 16, thereby quickly reducing the temperature of the conductive contact 14, the clamping contact 15, the clamping screw 16 and the wire, avoiding heat accumulation in the device, effectively avoiding high-temperature burning of the device, enhancing the practicality of the device, and improving the safety of the device. Installing the heat dissipation fin 4 can increase the contact area between the device and the air, thereby improving the heat exchange efficiency between the device and the air, improving the heat dissipation capacity of the device, and enhancing the heat dissipation effect of the device. Installing the cleaning bracket 5 allows the staff to pull the cleaning fin 5 when repairing the device. The movable limit plate 3 can make the limit plate 3 drive the cleaning bracket 5 to move, and then make the cleaning bracket 5 slide on the outside of the heat dissipating fin plate 4, so that the outside of the heat dissipating fin plate 4 remains clean, ensuring the heat exchange efficiency between the heat dissipating fin plate 4 and the air. Installing the cleaning plate 11 allows the staff to pull the limit plate 3 when repairing the device, so that the limit plate 3 can drive the cleaning bracket 5 to move through the linkage bracket 12, and then make the cleaning bristles 13 on the inside of the cleaning bracket 5 clean the air filter mesh plate 8, so that the air filter mesh plate 8 remains clean. Installing the fixed rubber ring 6 and the clamping rubber ring 7 can clamp the wire to prevent the wire from shaking, thereby enhancing the practicality of the device.

[0019] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A circuit breaker for power protection, comprising a circuit breaker body (1), characterized in that: A shielding net enclosure (2) is mounted on the upper and lower ends of the front end surface of the circuit breaker body (1) through a slot, and limit plates (3) are mounted on the upper and lower end surfaces of the circuit breaker body (1) through the slot, a fan mounting plate (17) is mounted inside the rear end surface of the circuit breaker body (1), and an air blowing fan (18) is mounted on the rear end surface of the fan mounting plate (17), gas transmission copper pipes (10) are mounted on both sides of the circuit breaker body (1), and a mounting plate (9) is mounted on the outside of one end of the gas transmission copper pipe (10), and an air filter mesh plate (8) is fixedly mounted on the rear end of both sides of the circuit breaker body (1), and a bottom sealing plate (19) is fixedly mounted on the rear end surface of the air filter mesh plate (8); A heat dissipation fin plate (4) is fixedly mounted on the outside of the shielding net enclosure (2); a cleaning bracket (5) is provided on the outside of the shielding net enclosure (2); the cleaning bracket (5) is slidably connected to the heat dissipation fin plate (4) via a slot; linkage brackets (12) are mounted on both sides of the circuit breaker body (1); the linkage bracket (12) is fixedly connected to the limit plate (3); a cleaning plate (11) is mounted on one end of the linkage bracket (12); the cleaning plate (11) is welded to the cleaning bracket (5); a cleaning brush (13) is mounted on the inner side of the cleaning plate (11); the cleaning brush (13) is fixedly connected to the cleaning plate (11).

2. The circuit breaker for power protection according to claim 1, characterized in that: A fixed rubber ring (6) is installed on the outside of the limiting plate (3), and the fixed rubber ring (6) is glued to the limiting plate (3).

3. The circuit breaker for power protection according to claim 1, characterized in that: A clamping rubber ring (7) is installed on the outside of the shielding net enclosure (2), and the clamping rubber ring (7) is glued to the shielding net enclosure (2).

4. The circuit breaker for power protection according to claim 1, characterized in that: Conductive contacts (14) are installed on the rear end surfaces inside the upper and lower ends of the circuit breaker body (1), and the conductive contacts (14) are fixedly connected to the circuit breaker body (1).

5. The circuit breaker for power protection according to claim 1, characterized in that: The fan mounting plate (17) is fixedly connected to the circuit breaker body (1), the air blowing fan (18) is fixedly connected to the fan mounting plate (17), the gas transmission copper pipe (10) is connected to the circuit breaker body (1) through a slot, the mounting plate (9) is fixedly connected to the circuit breaker body (1), and the cleaning bracket (5) is fixedly connected to the limit plate (3).

6. The circuit breaker for power protection according to claim 1, characterized in that: Clamping contacts (15) are installed on the front end surfaces inside the upper and lower ends of the circuit breaker body (1), and the clamping contacts (15) are slidably connected to the circuit breaker body (1) through a slot.

7. The circuit breaker for power protection according to claim 6, characterized in that: A clamping screw (16) is installed on the front end surface of the clamping contact (15), the clamping screw (16) is rotatably connected to the clamping contact (15), and the clamping screw (16) is connected to the circuit breaker body (1) through a thread.

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