A high-performance heat-dissipating load unit

Abstract

The present application relates to the technical field of resistance, in particular to a high-performance heat-dissipation load unit, comprising a wind tube, a motor fixed to the wind tube, a rotating shaft installed on the output shaft of the motor, a support disc fixed to the rotating shaft, and a plurality of support blades fixed to the support disc in a circumferential direction; the wind tube is provided with an external liquid tank, and the outer end of each support blade is provided with an external leading terminal inserted into the external liquid tank; the wind tube is provided with an internal liquid tank; the inner end of each support blade is provided with an internal leading terminal inserted into the internal liquid tank; the support blades are insulators, and the two ends of the resistance wire of each support blade are connected to the external leading terminal and the internal leading terminal of the support blade, so that each resistance wire is electrically connected through the conductive liquid. Compared with the existing load, the heat-dissipation effect is good, the wind resistance is low, and the requirement for the fan is reduced. By changing whether the external leading terminal is immersed in the conductive liquid in the external liquid tank, whether the resistance wire is used can be adjusted, so that the power of the entire resistance unit can be adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of resistance, in particular to a high-performance heat-dissipation load unit. BACKGROUND

[0002] The power of the power-consuming resistance element in the resistor is generally large, and a large amount of heat is generated during operation, so a heat dissipation mechanism is needed to assist in dissipating the heat. There are generally two kinds of existing heat dissipation mechanisms, one of which is air cooling, that is, a fan blows air towards the resistance element to dissipate the heat generated by the resistance element to the air. In order to meet different heat dissipation performance requirements, the traditional method is to select fans with different air volumes by calculation according to the law of conservation of energy: the energy generated by the resistance element = the energy absorbed by the resistance body + the heat carried away by the air. According to this law, a fan with appropriate air volume can be selected to meet the actual heat dissipation effect. However, the cost of the fan increases with the increase of the power of the fan, and the high-power fan consumes a large amount of electric energy. The other is water cooling, that is, a water pipe is arranged around the electronic element, and the circulating water in the water pipe carries away the heat.

[0003] A resistor with air cooling and water cooling coupled heat dissipation is disclosed in Chinese patent document with publication number CN107301908B, which includes a resistance box and a plurality of parallel resistance pipes arranged in the resistance box. The resistance pipe includes a sleeve and a resistance wire passing through the sleeve, and the resistance wire is insulated from the sleeve. The two ends of the resistance pipe pass outside the resistance box and serve as the wiring part of the resistance pipe, and the resistance pipe is insulated and sealed from the resistance box. The resistor also includes an air cooling mechanism that blows air towards the resistance pipe and a water cooling mechanism that sprays water into the resistance pipe inside the resistance box. Compared with the prior art, since the resistance wire that needs to be waterproof is covered with a sleeve, the two ends of the resistance pipe serve as the wiring part and pass outside the resistance box. In this way, the air cooling mechanism can spray water into the resistance box, and the water is directly sprayed on the resistance pipe. Combined with the air cooling mechanism blowing air on the resistance pipe, the water evaporation on the surface of the resistance pipe is accelerated, thereby accelerating the removal of the heat generated by the resistance pipe, and the heat dissipation effect is better. Moreover, there is no need for a complete water cooling device as in the traditional method, which greatly reduces the cost.

[0004] With the development of electronic power technology, the use requirements for loads are increasing, and the requirements for loads are becoming higher and higher, especially in terms of heat dissipation, and more and more high-power small-size structures are pursued. SUMMARY

[0005] In view of all or part of the above technical problems existing in the prior art, the present application provides a high-performance heat-dissipation load unit.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The application provides a load unit with high heat dissipation performance, which comprises a wind tube, a motor fixed to the wind tube, a rotating shaft installed on the output shaft of the motor, a support disc fixed to the rotating shaft, and a plurality of support blades fixed to the support disc in a circumferential direction.

[0008] An annular external liquid groove for containing conductive liquid is arranged in the wind tube and corresponds to the outer end of the support blade, and the outer end of each support blade is provided with an external lead-out terminal inserted into the external liquid groove; an internal liquid groove for containing conductive liquid is arranged in the wind tube and corresponds to the inner end of the support blade; and the inner end of each support blade is provided with an internal lead-out terminal inserted into the internal liquid groove.

[0009] The support blade is an insulator, each support blade is wound with a resistance wire, and the two ends of the resistance wire are connected to the external lead-out terminal and the internal lead-out terminal of the support blade, so that each resistance wire is electrically connected to each other through the conductive liquid; and each external lead-out terminal can be longitudinally moved to adjust whether it contacts the conductive liquid in the external liquid groove.

[0010] As a further optional solution, the external lead-out terminal is threadedly connected to the support blade through a stud, and external force is used to twist the external lead-out terminal to realize longitudinal adjustment; or the external lead-out terminal is in the form of an umbrella rib telescopic structure; or the external lead-out terminal is buckled to the support blade, and external force is used to move the lead-out terminal to enable it to be clamped at two positions.

[0011] As a further optional solution, the rotating shaft is vertically arranged, the support disc is horizontally arranged, and the openings of the external liquid groove and the internal liquid groove are upward.

[0012] As a further optional solution, the external liquid groove is in the form of a circular ring, and the internal liquid groove is in the form of a cylinder.

[0013] As a further optional solution, the internal lead-out terminal is coaxially arranged with the rotating shaft.

[0014] As a further optional solution, the external lead-out terminal is in the form of an arc-shaped sheet, and the arc degree of the external lead-out terminal is the same as the arc degree of the side wall of the external liquid groove.

[0015] As a further optional solution, the resistance wire is spirally wound outside the support blade.

[0016] As a further optional solution, a heat-conducting adhesive is arranged on the outer side of the support blade to wrap the resistance wire; or the resistance wire is exposed to air.

[0017] As a further optional solution, the rotating shaft is further provided with a plurality of auxiliary blades, and the auxiliary blades are arranged above the support blades to blow air towards the support blades.

[0018] As a further optional solution, the internal lead-out terminal and / or the external lead-out terminal is in the form of a cylinder.

[0019] As a further optional solution, a base frame is further included, the outer liquid tank and the inner liquid tank are fixed to the base frame, and the base frame is fixed to the bottom of the air duct.

[0020] Advantages of the present application:

[0021] The high-performance heat-dissipation load unit of the present application, compared with the existing load, has the resistance wire wound on the fan blade of the fan, the fan runs to drive the resistance wire to rotate, greatly increases the heat dissipation of the resistance wire, greatly increases the power density of the resistance wire, and compared with the traditional air-cooled load, basically does not generate wind resistance to the fan, reduces the requirement for the fan, and increases the heat dissipation performance. Furthermore, whether the resistance wire is used can be adjusted by changing whether the outer lead terminal is immersed in the conductive liquid of the external liquid tank, so that the power of the entire resistance unit can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 Structure diagram of the high-performance heat-dissipation load unit in the embodiment.

[0023] Fig. 2 Sectional view of the high-performance heat-dissipation load unit in the embodiment.

[0024] Fig. 3 Partial structure diagram of the high-performance heat-dissipation load unit in the embodiment.

[0025] Fig. 4 Structure diagram of the base frame, the external liquid tank and the internal liquid tank in the embodiment.

[0026] REFERENCE NUMERALS

[0027] Air duct 1, motor 2, rotating shaft 3, support disc 4, support fan blade 5, external liquid tank 6, external lead terminal 7, internal liquid tank 8, internal lead terminal 9, base frame 10. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0029] The high-performance heat-dissipation load unit of the present embodiment, as shown in Figs. 1 to 4As shown, it comprises a circular ring-shaped air duct 1, a motor 2 fixed at the center of the top of the air duct 1, a rotating shaft 3 installed on the output shaft of the motor 2, a support disc 4 fixed on the rotating shaft 3, and a plurality of support blades 5 fixed on the support disc 4 in a circumferential direction. An annular outer liquid groove 6 for containing conductive liquid is arranged at the outer end of each support blade 5 in the air duct 1, and an outer lead terminal 7 of each support blade 5 is inserted into the outer liquid groove 6; an inner liquid groove 8 for containing conductive liquid is arranged at the inner end of each support blade 5 in the air duct 1; and an inner lead terminal 9 of each support blade 5 is inserted into the inner liquid groove 8. The support blade 5 is an insulator made of high-temperature-resistant plastic material, and each support blade 5 is wound with a resistance wire, and the two ends of the resistance wire are connected to the outer lead terminal 7 and the inner lead terminal 9 of the support blade 5, respectively, so that each resistance wire is electrically connected in parallel through the conductive liquid.

[0030] Compared with the existing load, the resistance wire of the load resistance unit is wound on the support blade 5 of the fan, and the rotation of the resistance wire on the support blade 5 around the rotating shaft 3 is driven by the operation of the fan, which greatly enhances the heat dissipation effect of the resistance wire and greatly increases the power density of the resistance wire. The traditional air-cooled load forms a large air resistance to the fan, which is not conducive to heat dissipation and requires a higher performance of the fan. However, the improved structure of the embodiment basically does not produce air resistance to the fan, reduces the requirement for the fan, and increases the heat dissipation performance.

[0031] Each outer lead terminal 7 can move longitudinally to adjust whether it contacts the conductive liquid in the outer liquid groove 6. By changing whether the outer lead terminal 7 is immersed in the conductive liquid in the outer liquid groove 6, whether the resistance wire is used can be adjusted, so that the power of the entire resistance unit can be adjusted.

[0032] Specifically, the outer lead terminal 7 is threadedly connected to the support blade 5, and the longitudinal adjustment is achieved by twisting the outer lead terminal 7. Alternatively, the outer lead terminal 7 has an umbrella-type telescopic structure that can be lengthened or shortened. Alternatively, the outer lead terminal 7 is snap-connected to the support blade 5 (similar to the snap connection between the cap and the body of a pen), and the outer lead terminal 7 can be held in two positions by moving the outer lead terminal 7 with an external force, thereby achieving longitudinal adjustment of the outer lead terminal 7. Although these matching structures are not shown in the figure, threaded connection, umbrella-type telescopic mechanism and snap connection are all common connection methods in the mechanical field, and do not hinder implementation.

[0033] Specifically, the rotating shaft 3 is vertically arranged, the support disc 4 is horizontally arranged, and the openings of the outer liquid groove 6 and the inner liquid groove 8 are upward. The outer liquid groove 6 is annular, the inner liquid groove 8 is cylindrical with a closed bottom and an open top, and the inner lead terminal 9 is coaxially arranged with the rotating shaft 3. The inner lead terminal 9 and the outer lead terminal 7 are cylindrical.

[0034] In practice, the external connection terminal can be in the shape of an arc, and the curvature of the arc is the same as the curvature of the side wall of the external liquid tank 6, so as to increase the contact area and avoid splashing of the conductive liquid to some extent. Alternatively, the external connection terminal can be in the shape of a blade, and the blade edge faces the rotation direction of the support fan blade 5.

[0035] In this embodiment, the resistance wire is spirally wound outside the support fan blade 5. The outside of the support fan blade 5 is provided with a heat-conducting adhesive to wrap the resistance wire; or the resistance wire is exposed to the air.

[0036] In practice, a plurality of auxiliary fan blades (not shown in the figure) can also be fixed on the rotating shaft 3, and the auxiliary fan blades are located above the support fan blade 5 to blow air towards the support fan blade 5, so as to keep the fan blade dry.

[0037] In this embodiment, a base frame 10 is further included, the external liquid tank 6 and the internal liquid tank 8 are fixed to the base frame 10, and the base frame 10 is fixed to the bottom of the air duct 1. During installation, the three are first fixed as a whole, and then installed on the air duct 1.

[0038] In the description of the present application, it is obvious that the described embodiments are only part of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0039] Therefore, the above detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative labor are within the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the terms "middle", "upper", "lower", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.

[0041] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be mechanically connected or electrically connected. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

Claims

1. A high performance heat dissipating load unit, characterized by: The fan (1), the motor (2) fixed to the fan (1), the rotating shaft (3) installed on the output shaft of the motor (2), the support disc (4) fixed to the rotating shaft (3), and the plurality of support blades (5) fixed to the support disc (4) in a circumferential direction are included. An annular external liquid groove (6) for containing conductive liquid is arranged in the fan (1) corresponding to the outer end of the support blade (5), and the outer end of each support blade (5) is provided with an external lead terminal (7) inserted into the external liquid groove (6); an internal liquid groove (8) for containing conductive liquid is arranged in the fan (1) corresponding to the inner end of the support blade (5); and the inner end of each support blade (5) is provided with an internal lead terminal (9) inserted into the internal liquid groove (8). The support blade (5) is an insulator, each support blade (5) is wound with a resistance wire, and the two ends of the resistance wire are connected to the external lead terminal (7) and the internal lead terminal (9) of the support blade (5) respectively, so that each resistance wire is electrically connected to each other through the conductive liquid; each external lead terminal (7) can be longitudinally moved to adjust whether it contacts the conductive liquid in the external liquid groove (6).

2. The high performance heat dissipating load cell of claim 1, wherein: The external lead terminal (7) is threadedly connected to the support blade (5) through a stud, and external force is used to twist the external lead terminal (7) to achieve longitudinal adjustment; or the external lead terminal (7) has an umbrella-shaped telescopic structure; or the external lead terminal (7) is snap-connected to the support blade (5), and external force is used to move the lead terminal (7) to enable it to be clamped at two positions.

3. The high performance heat dissipating load cell of claim 1, wherein: The rotating shaft (3) is vertically arranged, the support disc (4) is horizontally arranged, and the openings of the external liquid groove (6) and the internal liquid groove (8) face upward; the external liquid groove (6) is in a circular ring shape, and the internal liquid groove (8) is in a cylindrical shape.

4. The high performance heat dissipating load cell of claim 3, wherein: The internal lead terminal (9) is coaxially arranged with the rotating shaft (3).

5. The high performance heat dissipating load cell of claim 3, wherein: The external lead terminal is in an arc-shaped sheet shape, and the arc degree thereof is the same as that of the side wall of the external liquid groove (6).

6. The high performance heat dissipating load cell of claim 1, wherein: The resistance wire is spirally wound outside the support blade (5).

7. The high performance heat dissipating load unit according to claim 1 or 5, wherein: The support blade (5) is provided with a heat-conducting adhesive on the outside to wrap the resistance wire; or the resistance wire is exposed to the air.

8. The high performance heat dissipating load cell of claim 1, wherein: The rotating shaft (3) is further fixed with a plurality of auxiliary blades, the auxiliary blades are located above the support blades (5), and air is blown toward the support blades (5) by rotation.

9. The high performance heat dissipating load cell of claim 1, wherein: The internal lead terminal (9) and / or the external lead terminal (7) is in a cylindrical shape.

10. The high performance heat dissipating load cell of claim 1, wherein: A chassis (10) is further included, the external liquid groove (6) and the internal liquid groove (8) are fixed to the chassis (10), and the chassis (10) is fixed to the bottom of the fan (1).

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