Resistor heat dissipation structure

Abstract

The utility model discloses a resistor heat dissipation structure which comprises a resistor main body, the outer side of the resistor main body is fixedly connected with a heat dissipation sleeve shell, the middle part of the heat dissipation sleeve shell is provided with an arc-shaped groove, the arc-shaped groove is provided with an active heat dissipation piece, the heat dissipation sleeve shell is provided with two groups of heat dissipation fins, and the active heat dissipation piece is provided with an active heat dissipation piece. Through holes are formed in the two sides of the interior of the arc-shaped groove and communicate with gaps between the cooling fins on the two sides. Heat of the resistor body is absorbed through the external heat dissipation sleeve shell and exported outwards in an accelerated mode, passive heat dissipation is achieved, the interior of the arc-shaped groove is absorbed into negative pressure by starting the active heat dissipation piece, air in gaps of the heat dissipation fins on the two sides is absorbed inwards through the through holes at the moment, the flow speed of the air between the heat dissipation fins is increased, and the heat dissipation efficiency is improved. Therefore, the device has the advantages that the heat dissipation efficiency is high, the flow guide effect is good, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of resistor heat dissipation, in particular to a resistor heat dissipation structure. Background Art

[0002] Resistors are generally called resistors in daily life. They are current limiting components. After the resistor is connected to the circuit, the resistance of the resistor is fixed, usually with two pins. It can limit the current passing through the branch it is connected to. When current passes through the resistor, a large amount of heat is generated. The heat dissipation structure is needed to dissipate the heat to ensure the stable operation of the resistor.

[0003] In the prior art, most resistors are equipped with a heat dissipation housing and fins to achieve heat dissipation. However, this passive method has poor heat dissipation effect and low efficiency. At the same time, only fins are provided on the outside, and the flow guide design is not reasonable, which makes it difficult to achieve efficient heat dissipation effect and poor use effect. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a resistor heat dissipation structure to solve the background technical problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A resistor heat dissipation structure comprises a resistor body, a heat dissipation shell is fixedly connected to the outer side of the resistor body, an arc groove is provided in the middle part of the heat dissipation shell, an active heat dissipation component is installed on the arc groove, two groups of heat dissipation fins are arranged on the heat dissipation shell, through holes are provided on both sides of the arc groove, and the through holes are respectively connected to the gaps between the heat dissipation fins on both sides.

[0007] As a further description of the above technical solution: the active heat sink includes an arc-shaped bracket, two bolts and a cooling fan, the bottom of the arc-shaped bracket is clamped to the inside of the arc-shaped groove, the arc-shaped bracket is fixedly connected to the heat dissipation sleeve by two bolts, and the cooling fan is installed on the arc-shaped bracket and connected to the arc-shaped groove.

[0008] As a further description of the above technical solution: the heat dissipation shell is provided with channels arranged at equal distances inside, the channel resistor body is distributed in a ring shape outside, the arc-shaped groove is provided with vertical holes arranged at equal distances inside, and the vertical holes are connected with the internal channels accordingly.

[0009] As a further description of the above technical solution: a first dustproof net is fixedly installed on the heat dissipation fan, and second dustproof nets are fixedly connected to both ends of the channel.

[0010] As a further description of the above technical solution: a horizontal mounting plate is fixedly connected to the bottom of the heat dissipation shell, and a plurality of mounting screw holes are provided on the horizontal mounting plate.

[0011] As a further description of the above technical solution: the heat dissipation shell is an integrated aluminum shell.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] This solution uses active heat dissipation components to increase the speed of air outside the heat dissipation sleeve, thereby improving the heat dissipation efficiency. It also achieves connectivity by setting channels and vertical through holes in conjunction with arc grooves, thereby increasing the contact area between the air and the heat dissipation sleeve and optimizing the flow guide design, thereby achieving the advantages of efficient heat dissipation, improved efficiency and use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional opening structure of the utility model;

[0016] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0017] Figure 4 It is a side structural schematic diagram of the utility model.

[0018] Description of the numbers in the figure:

[0019] 1. Resistor body; 2. Heat dissipation shell; 21. Channel; 211. Second dust-proof net; 3. Arc groove; 31. Vertical hole; 4. Active heat dissipation element; 41. Arc bracket; 42. Bolt; 43. Cooling fan; 431. First dust-proof net; 5. Cooling fin; 6. Through hole; 7. Horizontal mounting plate; 71. Mounting screw hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figures 1 to 4 In the utility model, a resistor heat dissipation structure includes a resistor body 1, a heat dissipation shell 2 is fixedly connected to the outer side of the resistor body 1, an arc groove 3 is opened in the middle part of the heat dissipation shell 2, an active heat dissipation member 4 is installed on the arc groove 3, two groups of heat dissipation fins 5 are arranged on the heat dissipation shell 2, through holes 6 are opened on both sides of the arc groove 3, and the through holes 6 are respectively connected with the gaps between the heat dissipation fins 5 on both sides.

[0022] In the utility model, the resistor body 1 is used as the device body, and the external heat dissipation shell 2 absorbs the heat of the resistor body 1 and accelerates the heat dissipation to the outside to achieve passive heat dissipation, and by starting the active heat dissipation member 4, the inside of the arc groove 3 is absorbed to become a negative pressure, and at this time, the air in the gaps between the heat dissipation fins 5 on both sides is absorbed inward through the through holes 6, so that the air flow rate between the heat dissipation fins 5 is increased to achieve accelerated heat dissipation, thereby achieving the advantages of high heat dissipation efficiency and good flow guidance effect, and improving the heat dissipation effect, solving the problem that most resistors in the prior art use a heat dissipation shell and set fins to achieve heat dissipation, but this passive method has poor heat dissipation effect and low efficiency, and at the same time, only fins are set on the outside, and the flow guidance design is not reasonable enough, it is difficult to exert efficient heat dissipation effect, and the use effect is poor.

[0023] See also Figure 1 and Figure 2 , wherein: the active heat sink 4 includes an arc-shaped bracket 41, two bolts 42 and a cooling fan 43, the bottom of the arc-shaped bracket 41 is clamped to the inside of the arc-shaped groove 3, the arc-shaped bracket 41 is fixedly connected to the heat dissipation casing 2 by two bolts 42, and the cooling fan 43 is installed on the arc-shaped bracket 41 and communicated with the arc-shaped groove 3.

[0024] In the utility model, the arc bracket 41 is fixedly installed inside the arc groove 3 by bolts 42 to fix the cooling fan 43, and then the cooling fan 43 is started to absorb the space between the arc groove 3 and the arc bracket 41 into a negative pressure, so as to guide the air flow between the gaps of the cooling fins 5 on both sides through the through holes 6 on both sides, thereby increasing the cooling efficiency.

[0025] See also Figure 1 and Figure 4 , wherein: the heat dissipation shell 2 is provided with channels 21 arranged at equal distances, the channels 21 are distributed in a ring shape outside the resistor body 1, and the arc groove 3 is provided with vertical holes 31 arranged at equal distances, and the vertical holes 31 are correspondingly connected with the internal channels 21.

[0026] In the utility model, the channel 21 and the vertical hole 31 are connected with the inside of the arc groove 3. When negative pressure is generated inside the arc groove 3, the air flow inside the channel 21 will also be adsorbed through the vertical hole 31 to increase the contact area between the heat dissipation shell 2 and the air, and increase the air flow rate on the contact surface to achieve efficient heat dissipation.

[0027] See also Figure 1 and Figure 2 , wherein: a first dustproof net 431 is fixedly installed on the heat dissipation fan 43 , and second dustproof nets 211 are fixedly connected to both ends of the channel 21 .

[0028] In the present invention, the air outlet of the heat dissipation fan 43 is protected from dust by the first dust-proof net 431 , and the two sides of the channel 21 are protected from dust by the second dust-proof net 211 .

[0029] See also Figure 1 and Figure 4 , wherein: a horizontal mounting plate 7 is fixedly connected to the bottom of the heat dissipation casing 2 , and a plurality of mounting screw holes 71 are provided on the horizontal mounting plate 7 .

[0030] In the present invention, the device is conveniently installed and fixed through the mounting screw holes 71 on the horizontal mounting plate 7 .

[0031] See also Figure 1 , wherein: the heat dissipation casing 2 is an integrated aluminum casing.

[0032] In the present invention, the heat dissipation casing 2 is an integrated aluminum casing, so that the overall heat conduction efficiency is higher.

[0033] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A resistor heat dissipation structure, comprising a resistor body (1), characterized in that: The outer side of the resistor body (1) is fixedly connected to a heat dissipation casing (2); an arc-shaped groove (3) is provided in the middle part of the heat dissipation casing (2); an active heat dissipation component (4) is installed on the arc-shaped groove (3); two groups of heat dissipation fins (5) are arranged on the heat dissipation casing (2); through holes (6) are provided on both sides of the arc-shaped groove (3); and the through holes (6) are respectively connected to the gaps between the heat dissipation fins (5) on both sides.

2. A resistor heat dissipation structure according to claim 1, characterized in that: The active heat sink (4) comprises an arc-shaped bracket (41), two bolts (42) and a heat dissipation fan (43); the bottom of the arc-shaped bracket (41) is clamped to the inside of the arc-shaped groove (3); the arc-shaped bracket (41) is fixedly connected to the heat dissipation casing (2) via the two bolts (42); and the heat dissipation fan (43) is installed on the arc-shaped bracket (41) and is connected to the arc-shaped groove (3).

3. A resistor heat dissipation structure according to claim 2, characterized in that: The heat dissipation casing (2) is provided with channels (21) arranged at equal distances inside, the channels (21) are distributed in a ring shape outside the resistor body (1), and the arc-shaped groove (3) is provided with vertical holes (31) arranged at equal distances inside, and the vertical holes (31) are correspondingly connected to the internal channels (21).

4. A resistor heat dissipation structure according to claim 3, characterized in that: A first dustproof net (431) is fixedly mounted on the heat dissipation fan (43), and second dustproof nets (211) are fixedly connected to both ends of the channel (21).

5. The resistor heat dissipation structure according to claim 1, characterized in that: A horizontal mounting plate (7) is fixedly connected to the bottom of the heat dissipation casing (2), and a plurality of mounting screw holes (71) are provided on the horizontal mounting plate (7).

6. A resistor heat dissipation structure according to claim 1, characterized in that: The heat dissipation casing (2) is an integrated aluminum casing.

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