Small-size heat dissipation device for circuit breaker

Abstract

The utility model discloses a small-size heat dissipation device for a circuit breaker. The small-size heat dissipation device comprises a mounting base, a heat conduction unit and a heat dissipation piece, the mounting base comprises a base body and a mounting hole. The heat conduction unit comprises a heat conduction base and a heat conduction rod. The heat dissipation piece comprises a heat dissipation piece main body, a heat conduction rod mounting hole, a heat dissipation sheet group and a connecting sheet. And each radiating fin group comprises a plurality of radiating fins which are arranged on the radiating piece main body at intervals. And the radiating fins in each radiating fin group are parallel to one another. The outer contour of the connecting piece is in an L shape. When the installation base, the heat conduction unit and the heat dissipation piece are connected together, the installation holes, the heat conduction rod installation holes and the heat conduction rods correspond to one another. The small-size heat dissipation device for the circuit breaker is simple in structure and convenient to use, space waste is reduced through staggered arrangement of the heat dissipation sheet groups and the connecting sheets, airflow is guided to flow to different directions, the airflow is uniformly distributed, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breaker equipment, in particular to a small-volume heat dissipation device for a circuit breaker. Background Art

[0002] A circuit breaker is an automatically operated electrical switch designed to protect electrical circuits from damage, such as overload or short circuit. When the current in the system exceeds a preset safety value, the circuit breaker automatically cuts off the circuit to prevent overheating of wires, fire, or damage to equipment. Circuit breakers generate heat during operation, especially when the current exceeds its rated value. In order to ensure that the circuit breaker can work safely and effectively, proper heat dissipation measures must be taken.

[0003] For example, a Chinese patent for a heat sink for a frame circuit breaker, application number CN201910227335.X, includes a base plate and a plurality of heat sinks, which are evenly spaced from left to right on the base plate; each heat sink is longitudinally arranged, the rear end face of each heat sink is flush with the rear side face of the base plate, and the front end face extends out of the front side face of the base plate; but in the heat sink for the frame circuit breaker, each heat sink is longitudinally arranged, that is, the parallel arrangement of the heat sinks leads to insufficient space utilization, especially in a limited volume, which is inconvenient to use. Utility Model Content

[0004] In view of this, the utility model provides a small-volume heat dissipation device for a circuit breaker that can improve the space utilization of the heat sink to meet industrial needs.

[0005] A small-volume heat dissipation device for a circuit breaker includes a mounting base, a heat-conducting unit arranged on the base, and a heat sink arranged on the heat-conducting unit. The mounting base includes a base body and a plurality of mounting holes arranged on the base body. The heat-conducting unit includes a heat-conducting base and a plurality of heat-conducting rods arranged on the heat-conducting base. The heat sink includes a heat sink body, a plurality of heat-conducting rod mounting holes arranged on the heat sink body, a plurality of heat sink groups arranged on the heat sink body at intervals, and a plurality of connecting plates arranged between the heat sink groups. Each of the heat sink groups includes a plurality of heat-dissipating fins spaced on the heat sink body. The heat-dissipating fins in each of the heat sink groups are parallel to each other. The outer contour of the connecting plate is in an "L" shape. When the mounting base, the heat-conducting unit, and the heat sink are connected together, the mounting holes, the heat-conducting rod mounting holes, and the heat-conducting rods correspond to each other.

[0006] Furthermore, the mounting base also includes a mounting groove arranged on one side of the base body, the mounting holes are all accommodated in the mounting groove, and the outer contour of the mounting groove is consistent with the outer contour of the heat-conducting base.

[0007] Furthermore, the heat sink body, the heat sink group, and the connecting sheet are integrally formed.

[0008] Furthermore, the mounting base also includes a first threading hole arranged on the base body.

[0009] Furthermore, the heat conduction unit also includes a second threading hole arranged on the heat conduction base.

[0010] Furthermore, the heat sink also includes a third threading hole on the heat sink body, and when the mounting base, the heat conduction unit, and the heat sink are connected together, the first threading hole, the second threading hole, and the third threading hole correspond to each other.

[0011] Furthermore, the included angle between any two adjacent heat sink groups is 90 degrees.

[0012] Furthermore, the heat sink also includes a plurality of heat dissipation holes arranged on the heat sink body, and each of the heat dissipation holes is arranged between two adjacent heat-conducting rod mounting holes.

[0013] Compared with the prior art, the small-volume heat dissipation device for circuit breakers provided by the utility model connects the mounting base and the heat sink together through a heat conduction unit, and improves the heat dissipation efficiency through the heat sink group and the connecting plate in the heat sink. The connecting plate is arranged between the heat sink groups, and each of the heat sink groups includes a plurality of heat sink fins spaced on the heat sink body, and each of the heat sink fins disperses the heat on the heat sink body. The connecting plate increases the heat dissipation area, and the connecting plate connects the plurality of heat sink groups into a whole. The connecting plate is arranged between any two adjacent heat sink groups, changing the airflow direction between the heat sink groups. The heat sink fins in each heat sink group are parallel to each other, and the heat sink fins guide the airflow direction to flow to the side wall edge of the heat sink body. And each of the connecting plates is arranged between two heat sink groups. It can be imagined that the plurality of connecting plates connect the plurality of heat sink groups into a whole so that the heat is quickly dispersed to the plurality of heat sink groups, and the plurality of connecting plates are arranged between the heat sink groups to further increase the heat dissipation area. And the outer contour of the connecting piece is in an "L" shape. It can be imagined that the "L"-shaped structure increases the surface area, that is, increases the heat dissipation area, thereby ensuring the heat dissipation efficiency in a small volume. It can be seen from this that the small-volume heat dissipation device for circuit breakers has a simple structure and is easy to use. The staggered arrangement between the heat sink group and the connecting piece reduces space waste, and guides the airflow to different directions, thereby achieving uniform distribution of the airflow and improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a small-volume heat dissipation device for a circuit breaker provided by the utility model.

[0015] Figure 2 for Figure 1 Schematic diagram of the exploded structure of a small-volume heat dissipation device for a circuit breaker. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0017] like Figure 1 to Figure 2As shown, it is a schematic diagram of the structure of a small-volume heat dissipation device for a circuit breaker provided by the utility model. The small-volume heat dissipation device for a circuit breaker includes a mounting base 10, a heat conduction unit 20 disposed on the mounting base 10, and a heat sink 30 disposed on the heat conduction unit 20. The small-volume heat dissipation device for a circuit breaker also includes some other functional modules, such as assembly components, etc., which should be well known to those skilled in the art and will not be described in detail one by one here.

[0018] The mounting base 10 includes a base body 11, a plurality of mounting holes 12 disposed on the base body, a mounting groove 13 disposed on one side of the base body 11, and a first threading hole 14 disposed on the base body 11. The mounting holes 12 and the mounting groove 13 are both used to mount the heat transfer unit 20, so that the mounting base 10 and the heat transfer unit 20 form a whole. The mounting base 10 will be described in detail in conjunction with the heat transfer unit 20.

[0019] The heat-conducting unit 20 includes a heat-conducting base 21, a plurality of heat-conducting rods 22 arranged on the heat-conducting base 21, and a second threading hole 23 arranged on the heat-conducting base 21. The mounting holes 12 are all accommodated in the mounting grooves 13, and the outer contour of the mounting grooves 13 is consistent with the outer contour of the heat-conducting base 21, so that the heat-conducting base 21 can be accommodated in the mounting grooves 13, so that the position of the heat-conducting base 21 on the mounting base 10 is stable. The heat-conducting base 21 and the heat-conducting rods 22 are integrally formed, and the heat-conducting base 21 and the heat-conducting rods 22 transfer heat to the heat sink 30. The heat-conducting rods 22 correspond to the mounting holes 12, so that the heat-conducting rods 22 can pass through the mounting holes 12 and be connected to the heat sink 30.

[0020] The heat sink 30 includes a heat sink body 31, a plurality of heat-conducting rod mounting holes 32 disposed on the heat sink body 31, a plurality of heat sink fin groups 33 disposed at intervals on the heat sink body 31, a plurality of connecting pieces 34 disposed between the heat sink fin groups 33, a third threading hole 35 on the heat sink body 31, and a plurality of heat dissipation holes 36 disposed on the heat sink body 31. The heat sink body 31, the heat sink fin group 33, and the connecting piece 34 are integrally formed to ensure that the entire heat sink 30 has a stable structure.

[0021] The heat-conducting rod mounting hole 32 is used to mount the heat-conducting rod 22, and the heat-conducting rod mounting hole 32 corresponds to the heat-conducting rod 22. When the mounting base 10, the heat-conducting unit 20, and the heat sink 30 are connected together, the mounting hole 12, the heat-conducting rod mounting hole 32, and the heat-conducting rod 22 correspond to each other, so that the heat-conducting rod 22 is inserted into the mounting hole 12 and the heat-conducting rod mounting hole 32, thereby realizing the connection between the mounting base 10, the heat-conducting unit 20, and the heat sink 30.

[0022] Each of the heat sink groups 33 includes a plurality of heat sink fins 331 spaced apart on the heat sink body 31. The angle between any two adjacent heat sink groups 33 is 90 degrees, and the heat sink fins 331 in each heat sink group 33 are parallel to each other, even if the heat sink fins 331 are spaced apart, the heat dissipation efficiency of each heat sink fin 331 is ensured.

[0023] Each of the connecting pieces 34 is disposed between two of the heat sink groups 33. It can be imagined that the multiple connecting pieces 34 connect the multiple heat sink groups 33 as a whole, so that the heat can be quickly dispersed to each heat sink group 33. The multiple connecting pieces 34 are disposed between the heat sink groups 33 to further increase the heat dissipation area. In addition, the outer contour of the connecting piece 34 is in an "L" shape, and the top angle of the connecting piece 34 is in an arc shape. It can be imagined that the "L"-shaped structure increases the surface area, that is, increases the heat dissipation area, thereby ensuring the heat dissipation efficiency in a small volume.

[0024] The connecting piece 34 is arranged between any two adjacent heat sink groups 33, which changes the airflow direction between the heat sink groups 33, that is, the heat sink fins 331 in the heat sink group 33 guide the airflow to the side wall edge of the heat sink body 31, and the connecting piece 34 guides the airflow between the heat sink groups 33 to flow to the two ends of the heat sink body 31, thereby directing the airflow of the heat sink body 31 to different directions, thereby improving the heat dissipation efficiency of the heat sink body 31.

[0025] When the mounting base 10 , the heat conducting unit 20 , and the heat sink 30 are connected together, the first wire threading hole 14 , the second wire threading hole 23 , and the third wire threading hole 35 correspond to each other, thereby enabling the wires to be passed through the mounting base 10 , the heat conducting unit 20 , and the heat sink 30 .

[0026] Each of the heat dissipation holes 36 is disposed between two adjacent heat-conducting rod mounting holes 32 , thereby increasing the heat dissipation area between the heat-conducting rod mounting holes 32 and improving the heat dissipation efficiency of the heat dissipation component body 31 .

[0027] Compared with the prior art, the small-volume heat dissipation device for circuit breakers provided by the utility model connects the mounting base 10 and the heat sink 30 together through the heat conduction unit 20, and improves the heat dissipation efficiency through the heat sink group 33 and the connecting plate 34 in the heat sink 30. The connecting plate 34 is arranged between the heat sink groups 33, and each of the heat sink groups 33 includes a plurality of heat sink fins 331 spaced on the heat sink body 31, and each of the heat sink fins 331 disperses the heat on the heat sink body 31. The connecting plate 34 increases the heat dissipation area, and the connecting plate 34 connects the plurality of heat sink groups 33 into a whole. The connecting plate 34 is arranged between any two adjacent heat sink groups 33, and changes the airflow direction between the heat sink groups 33. The heat sink fins 331 in each heat sink group 33 are parallel to each other, and the heat sink fins 331 guide the airflow direction to flow toward the side wall edge of the heat sink body 31. Each of the connecting pieces 34 is arranged between two of the heat sink groups 33. It can be imagined that the multiple connecting pieces 34 connect the multiple heat sink groups 33 into a whole, so that the heat can be quickly dispersed to the multiple heat sink groups 33. The multiple connecting pieces 34 are arranged between the heat sink groups 33 to further increase the heat dissipation area. The outer contour of the connecting piece 34 is in an "L" shape. It can be imagined that the "L"-shaped structure increases the surface area, that is, increases the heat dissipation area, thereby ensuring the heat dissipation efficiency in a small volume. It can be seen from this that the small-volume heat dissipation device for circuit breakers has a simple structure and is easy to use. The staggered arrangement between the heat sink groups 33 and the connecting pieces 34 reduces space waste, and guides the airflow to different directions, thereby achieving uniform distribution of airflow and improving heat dissipation efficiency.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A small-volume heat dissipation device for a circuit breaker, Features: The small-volume heat dissipation device for a circuit breaker includes a mounting base, a heat-conducting unit arranged on the base, and a heat sink arranged on the heat-conducting unit. The mounting base includes a base body and a plurality of mounting holes arranged on the base body. The heat-conducting unit includes a heat-conducting base and a plurality of heat-conducting rods arranged on the heat-conducting base. The heat sink includes a heat sink body, a plurality of heat-conducting rod mounting holes arranged on the heat sink body, a plurality of heat-dissipating fin groups arranged at intervals on the heat-dissipating fin body, and a plurality of connecting pieces arranged between the heat-dissipating fin groups. Each of the heat-dissipating fin groups includes a plurality of heat-dissipating fins spaced apart on the heat-dissipating fin body. The heat-dissipating fins in each of the heat-dissipating fin groups are parallel to each other. The outer contour of the connecting piece is in an "L" shape. When the mounting base, the heat-conducting unit, and the heat sink are connected together, the mounting holes, the heat-conducting rod mounting holes, and the heat-conducting rods correspond to each other.

2. The small-volume heat dissipation device for a circuit breaker according to claim 1, Features: The mounting base also includes a mounting groove arranged on one side of the base body, the mounting holes are all accommodated in the mounting groove, and the outer contour of the mounting groove is consistent with the outer contour of the heat-conducting base.

3. The small-volume heat dissipation device for a circuit breaker according to claim 1, Features: The heat sink body, the heat sink group and the connecting sheet are integrally formed.

4. The small-volume heat dissipation device for a circuit breaker according to claim 1, Features: The mounting base also includes a first threading hole arranged on the base body.

5. The small-volume heat dissipation device for a circuit breaker according to claim 4, Features: The heat conduction unit further comprises a second threading hole arranged on the heat conduction base.

6. The small-volume heat dissipation device for a circuit breaker according to claim 5, Features: The heat sink also includes a third threading hole on the heat sink body, and the first threading hole, the second threading hole, and the third threading hole correspond to each other.

7. The small-volume heat dissipation device for a circuit breaker according to claim 1, Features: The included angle between any two adjacent heat sink groups is 90 degrees.

8. The small-volume heat dissipation device for a circuit breaker according to claim 1, Features: The heat sink also includes a plurality of heat dissipation holes arranged on the heat sink body, and each of the heat dissipation holes is arranged between two adjacent heat-conducting rod mounting holes.

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