Heat dissipation device of electrical primary circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, and discloses an electrical primary circuit breaker heat dissipation device which comprises a device body. A plurality of heat-conducting fins distributed at equal intervals are installed on the bottom face of the device body, a protection frame is installed on the bottom face of the device body, the heat-conducting fins are all located in the protection frame, a movable plate is slidably connected to the interior of the protection frame, a plurality of sweeping plates are fixedly connected to the upper surface of the movable plate, and the sweeping plates make contact with the heat-conducting fins close to the sweeping plates. According to the heat dissipation device for the electrical primary circuit breaker, heat in the device body can be conducted out by installing the heat conducting fins, overheating in the device body is avoided, the heat conducting fins can be cleaned through cooperation of the sweeping plates, and the situation that the heat dissipation efficiency is affected due to the fact that impurities adhere to the surfaces of the heat conducting fins is avoided; and through cooperation of the grinding wheel and the grinding plate, the rotating rod can rotate, and through cooperation of the grinding wheel and the multiple fan blades, airflow can be conveyed to the multiple heat conducting pieces, so that the airflow can take away heat on the heat conducting pieces, and then the heat dissipation efficiency of the device body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a heat dissipation device for an electric primary circuit breaker. Background Art

[0002] A circuit breaker refers to a switching device that can close, carry and disconnect current under normal circuit conditions and can close, carry and disconnect current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The boundary between high and low voltage is relatively vague, and those above 3kV are generally called high-voltage electrical appliances.

[0003] Common circuit breakers generally include a shell and components inside the shell. Due to the small space inside the shell, the terminals of the circuit breaker will generate a lot of heat after being connected to the power supply for a long time. In order to improve the protection of the circuit breaker, the terminals inside the circuit breaker are usually in a closed state, which is not conducive to the dissipation of heat and can easily affect the performance of the circuit breaker. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a heat dissipation device for an electrical primary circuit breaker, which has the advantage of improving heat dissipation efficiency and solves the problems raised in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat dissipation device for an electrical primary circuit breaker, comprising a body; a plurality of heat conducting sheets distributed at equal distances are installed on the bottom surface of the body, a protective frame is installed on the bottom surface of the body, and the plurality of heat conducting sheets are all located in the protective frame;

[0008] The protective frame is internally slidably connected to a movable plate, the upper surface of the movable plate is fixedly connected to a plurality of sweeping plates, the plurality of sweeping plates are in contact with the heat conducting plates adjacent thereto, the bottom surface of the movable plate is rotatably connected to two rotating rods, the outer surfaces of the two rotating rods are fixedly connected to a plurality of fan blades distributed in a circle.

[0009] In some embodiments, the outer surfaces of the two rotating rods are fixedly connected with grinding wheels, and two grinding plates are installed on the inner wall of the protective frame. The two grinding wheels are in contact with the grinding plates close to them. The cooperation between the installed grinding wheels and the grinding plates can make the rotating rod rotate when the movable plate moves, and supply air to multiple heat conducting plates through the cooperation of fan blades, so that the airflow can take away the heat from the heat conducting plates.

[0010] In some embodiments, a plurality of ventilation grooves are provided on the bottom surface of the protection frame, and the plurality of ventilation grooves are distributed at equal distances. The installation of the ventilation grooves can improve the air permeability of the protection frame, so that air circulation can be maintained in the protection frame.

[0011] In some embodiments, a set of drainage grooves are provided on the front and back of the protection frame, and the two sets of drainage grooves are symmetrical. The drainage grooves can facilitate airflow to remove impurities in the protection frame and prevent impurities from being retained in the protection frame.

[0012] In some embodiments, the inner wall of the protective frame is rotatably connected to a reciprocating screw, and the movable plate is threadedly connected to the reciprocating screw. The reciprocating screw can drive the movable plate to move, so that the sweeping plate can clean the heat conducting plate to prevent impurities from adhering to the heat conducting plate.

[0013] In some embodiments, a motor is installed on the right side of the protective frame, and the output end of the motor is fixedly connected to the right end of the reciprocating screw. The motor can drive the reciprocating screw to rotate, so that it can cooperate with the movable plate to repeatedly clean the heat conducting plate.

[0014] In some embodiments, an air collecting pipe is installed on the inner wall of the protective frame, and a sliding part is slidably connected to the inside of the air collecting pipe. A fixed rod is installed on the inner wall of the protective frame, and a rope is fixedly connected to the right side of the sliding part. The other end of the rope is fixedly connected to the movable plate, and the rope is in contact with the fixed rod. An air intake valve is installed on the left end of the air collecting pipe. The air collecting pipe and the sliding part are installed, and the cooperation of the rope can draw outside air into the air collecting pipe during the movement of the movable plate, so that it can store air.

[0015] In some embodiments, an elastic rope is fixedly connected to the inner wall of the air collecting pipe, the other end of the elastic rope is fixedly connected to the sliding member, an exhaust pipe is installed inside the protective frame, a plurality of nozzles distributed at equal distances are installed on the outer surface of the exhaust pipe, and the other end of the exhaust pipe is fixedly connected to the air collecting pipe. The installed elastic rope can drive the sliding member to reset in the air collecting pipe through the deformation force of the elastic rope, and can squeeze the air in the air collecting pipe so that the air is ejected from the plurality of nozzles to dissipate heat to the heat conducting plate.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a heat dissipation device for an electrical primary circuit breaker, which has the following beneficial effects:

[0018] 1. The heat dissipation device of the electrical primary circuit breaker can dissipate the heat in the device body by installing a heat conductive sheet to avoid overheating in the device body, and can clean the heat conductive sheet by cooperating with a sweeping plate to avoid impurities adhering to the surface of the heat conductive sheet to affect its heat dissipation efficiency, and can rotate the rotating rod by cooperating with a grinding wheel and a grinding plate, and can transport airflow to multiple heat conductive sheets by cooperating with a plurality of fan blades, so that the airflow can take away the heat on the heat conductive sheets, thereby improving the heat dissipation efficiency of the device body.

[0019] 2. The heat dissipation device for the electrical primary circuit breaker can drive the sliding member to reset in the air collecting pipe by installing an elastic rope through the deformation force of the elastic rope, and can squeeze the air in the air collecting pipe so that the air is ejected from multiple nozzles to dissipate heat from the heat conducting plate, thereby further improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a sectional view of the left side view of the protection frame of the utility model;

[0021] Figure 2 It is a cross-sectional view of the front view of the protection frame of the utility model;

[0022] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at A;

[0023] Figure 4 For this utility model Figure 2 A schematic diagram of the structure at B;

[0024] Figure 5 It is a front view of the device body of the utility model.

[0025] In the figure: 1. body; 2. heat conducting plate; 3. protective frame; 4. movable plate; 5. sweeping plate; 6. rotating rod; 7. fan blade; 8. grinding wheel; 9. grinding plate; 10. air vent; 11. drain trough; 12. reciprocating screw; 13. motor; 14. air collecting pipe; 15. sliding part; 16. fixed rod; 17. rope; 18. intake valve; 19. elastic rope; 20. exhaust pipe; 21. nozzle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0030] In the related art, a common circuit breaker generally includes a shell and components inside the shell. Due to the small space inside the shell, after being connected to the power supply for a long time, the terminals of the circuit breaker will generate a lot of heat. In order to improve the protection of the circuit breaker, the terminals inside the circuit breaker are usually in a closed state, which is not conducive to the dissipation of heat and can easily affect the performance of the circuit breaker.

[0031] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides a heat dissipation device for an electrical primary circuit breaker. When the device body 1 is working, multiple heat-conducting plates 2 can transfer the heat in the device body 1 to prevent heat from being retained in the device body 1. At this time, the motor 13 starts and drives the reciprocating screw 12 to rotate. The reciprocating screw 12 can drive the movable plate 4 to move in the body during the rotation and can clean the multiple heat-conducting plates 2 through the cooperation of multiple sweeping plates 5 to prevent impurities from adhering to the heat-conducting plates 2 and affecting the heat dissipation efficiency of the heat-conducting plates 2. When the movable plate 4 moves, it can drive the grinding wheel 8 to contact the grinding plate 9 and then drive the rotating rod 6 to rotate, so that the rotating rod 6 can cooperate with the fan blades 7 to send impurities to the multiple heat-conducting plates 2 during the rotation. Wind enables the airflow to carry away impurities on the heat conducting sheet 2 and the heat on the heat conducting sheet 2, thereby improving the heat dissipation efficiency of the device body 1. When the movable plate 4 moves, the rope 17 can drive the sliding member 15 to slide in the air collecting pipe 14, so that the air collecting pipe 14 will be in a negative pressure. At this time, the outside air can enter the air collecting pipe 14 through the air intake valve 18. When the movable plate 4 is reset, the reset force of the elastic rope 19 can drive the sliding member 15 to reset and push the air in the air collecting pipe 14, so that it can enter the exhaust pipe 20 and be ejected from multiple nozzles 21, so that the airflow can carry away the heat on multiple heat conducting sheets 2, further dissipate the heat of the heat conducting sheets 2, and enable the multiple heat conducting sheets 2 to maintain high thermal conductivity, which is convenient for heat dissipation of the device body 1.

[0032] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0033] Combination Figure 1-Figure 5 The embodiment of the present application provides a heat dissipation device for an electrical primary circuit breaker, comprising a body 1; a plurality of heat conductive sheets 2 distributed at equal distances are installed on the bottom surface of the body 1, a protective frame 3 is installed on the bottom surface of the body 1, and the plurality of heat conductive sheets 2 are all located in the protective frame 3, a movable plate 4 is slidably connected to the inside of the protective frame 3, a plurality of sweeping plates 5 are fixedly connected to the upper surface of the movable plate 4, and the plurality of sweeping plates 5 are in contact with the heat conductive sheets 2 close to them, and two rotating rods 6 are rotatably connected to the bottom surface of the movable plate 4, and a plurality of fan blades 7 distributed in a circumference are fixedly connected to the outer surfaces of the two rotating rods 6, and the installation of the heat conductive sheets 2 can export the heat in the body 1 to avoid overheating in the body 1, and the heat conductive sheets 2 can be cleaned by the cooperation of the sweeping plates 5 to avoid impurities adhering to the surface of the heat conductive sheets 2 and affecting its heat dissipation efficiency, and the rotating rod 6 can be rotated by the cooperation of the grinding wheel 8 and the grinding plate 9, and can be transported to the plurality of heat conductive sheets 2 by the cooperation of the plurality of fan blades 7, so that the airflow can take away the heat on the heat conductive sheets 2, thereby improving the heat dissipation efficiency of the body 1.

[0034] In some embodiments, the outer surfaces of the two rotating rods 6 are fixedly connected with grinding wheels 8, and the inner wall of the protective frame 3 is installed with two grinding plates 9. The two grinding wheels 8 are in contact with the grinding plates 9 close to them. The cooperation of the grinding wheels 8 and the grinding plates 9 can move the movable plate 4 to make the rotating rod 6 rotate and supply air to multiple heat conducting plates 2 through the cooperation of the fan blades 7, so that the airflow can take away the heat on the heat conducting plates 2. The bottom surface of the protective frame 3 is provided with multiple air permeable grooves 10, and the multiple air permeable grooves 10 are distributed at equal distances. The installation of the air permeable grooves 10 can improve the air permeability of the protective frame 3, so that the air circulation can be maintained in the protective frame 3. A group of sewage grooves 11 are provided on the front and back of the protective frame 3, and the two groups of sewage grooves 11 are symmetrical. The opening of the sewage grooves 11 can facilitate the airflow to bring out impurities in the protective frame 3, thereby avoiding impurities from being trapped in the protective frame 3.

[0035] In some embodiments, the inner wall of the protective frame 3 is rotatably connected to a reciprocating screw 12, and the movable plate 4 is threadedly connected to the reciprocating screw 12. The reciprocating screw 12 can drive the movable plate 4 to move, so that the sweeping plate 5 can clean the heat conductive sheet 2 to prevent impurities from adhering to the heat conductive sheet 2. A motor 13 is installed on the right side of the protective frame 3, and the output end of the motor 13 is fixedly connected to the right end of the reciprocating screw 12. The motor 13 can drive the reciprocating screw 12 to rotate, so that it can cooperate with the movable plate 4 to repeatedly clean the heat conductive sheet 2. An air collecting pipe 14 is installed on the inner wall of the protective frame 3, and a sliding member 15 is slidably connected to the inside of the air collecting pipe 14. A fixed rod 16 is installed on the inner wall of the protective frame 3, and a rope 17 is fixedly connected to the right side of the sliding member 15. The other end of the rope 17 is fixedly connected to the movable plate 4, and the rope 17 is fixedly connected to the fixed The fixed rod 16 is in contact with the air collecting pipe 14, and an air intake valve 18 is installed on the left end of the air collecting pipe 14. The air collecting pipe 14 and the sliding member 15 are installed. The cooperation of the rope 17 can draw the outside air into the air collecting pipe 14 during the movement of the movable plate 4, so that it can store the air. The inner wall of the air collecting pipe 14 is fixedly connected with an elastic rope 19, and the other end of the elastic rope 19 is fixedly connected to the sliding member 15. An exhaust pipe 20 is installed inside the protective frame 3, and a plurality of nozzles 21 distributed at equal distances are installed on the outer surface of the exhaust pipe 20. The other end of the exhaust pipe 20 is fixedly connected to the air collecting pipe 14. The installation of the elastic rope 19 can drive the sliding member 15 to reset in the air collecting pipe 14 through the deformation force of the elastic rope 19, and can squeeze the air in the air collecting pipe 14, so that the air is ejected from the plurality of nozzles 21 to dissipate heat for the heat conducting plate 2.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0037] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation device for an electrical primary circuit breaker, comprising a body (1); a plurality of heat conducting sheets (2) distributed at equal distances are installed on the bottom surface of the body (1); a protective frame (3) is installed on the bottom surface of the body (1), and the plurality of heat conducting sheets (2) are all located in the protective frame (3); Features: The protective frame (3) is internally slidably connected to a movable plate (4), the upper surface of the movable plate (4) is fixedly connected to a plurality of sweeping plates (5), the plurality of sweeping plates (5) are all in contact with the heat conducting plates (2) adjacent thereto, the bottom surface of the movable plate (4) is rotatably connected to two rotating rods (6), the outer surfaces of the two rotating rods (6) are fixedly connected to a plurality of circumferentially distributed fan blades (7).

2. The heat dissipation device for an electrical primary circuit breaker according to claim 1, characterized in that: The outer surfaces of the two rotating rods (6) are fixedly connected with grinding wheels (8), and the inner wall of the protection frame (3) is installed with two grinding plates (9), and the two grinding wheels (8) are in contact with the grinding plates (9) adjacent to them.

3. The heat dissipation device for an electrical primary circuit breaker according to claim 1, characterized in that: The bottom surface of the protection frame (3) is provided with a plurality of ventilation grooves (10), and the plurality of ventilation grooves (10) are distributed at equal distances.

4. The heat dissipation device for an electrical primary circuit breaker according to claim 1, characterized in that: A set of drainage grooves (11) are provided on the front and back sides of the protection frame (3), and the two sets of drainage grooves (11) are symmetrical.

5. The heat dissipation device for an electrical primary circuit breaker according to claim 1, characterized in that: The inner wall of the protection frame (3) is rotatably connected to a reciprocating screw (12), and the movable plate (4) is threadedly connected to the reciprocating screw (12).

6. The heat dissipation device for an electrical primary circuit breaker according to claim 1, characterized in that: A motor (13) is installed on the right side of the protection frame (3), and the output end of the motor (13) is fixedly connected to the right end of the reciprocating screw (12).

7. The heat dissipation device for an electrical primary circuit breaker according to claim 1, characterized in that: The inner wall of the protection frame (3) is installed with an air collecting pipe (14), the interior of the air collecting pipe (14) is slidably connected with a sliding member (15), the inner wall of the protection frame (3) is installed with a fixing rod (16), the right side of the sliding member (15) is fixedly connected with a rope (17), the other end of the rope (17) is fixedly connected with the movable plate (4), the rope (17) is in contact with the fixing rod (16), and the left end of the air collecting pipe (14) is installed with an air intake valve (18).

8. The heat dissipation device for an electrical primary circuit breaker according to claim 7, characterized in that: An elastic rope (19) is fixedly connected to the inner wall of the air collecting pipe (14), and the other end of the elastic rope (19) is fixedly connected to the sliding member (15). An exhaust pipe (20) is installed inside the protective frame (3), and a plurality of nozzles (21) distributed at equal distances are installed on the outer surface of the exhaust pipe (20), and the other end of the exhaust pipe (20) is fixedly connected to the air collecting pipe (14).

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