Heat dissipation structure of variable-frequency resistance box

Abstract

The utility model discloses a heat dissipation structure of a variable frequency resistance box, which relates to the technical field of resistance boxes, and comprises a box body, a box door and a top cover, one side of the box door is hinged with the box body, and the top cover is fixedly connected to the top of the box body; the heat dissipation structure comprises a box body, the two sides of the box body are each provided with a heat dissipation window, two installation plates are fixedly connected to the interior of the box body and distributed at the top and the bottom of the inner side of the box body, and a heat dissipation structure for conducting heat dissipation on a resistor is arranged between the two installation plates. In the process that equipment is installed in the box body, main resistor elements are arranged between the two fixing rings, when the resistor elements operate, heat can be generated, the part of heat is guided into the heat absorption plate, then the heat absorption plate transmits the heat to the heat absorption copper pipe, heat dissipation is carried out by means of a liquid medium in the heat absorption copper pipe, and the heat dissipation efficiency is improved. The heat-absorbing copper pipe and the heat-absorbing plate are both designed into a cylindrical structure, so that the heat-absorbing copper pipe and the heat-absorbing plate are closer to a resistor element, thereby improving heat dissipation efficiency.

Description

Technical Field

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

[0002] The variable frequency resistor box is a device used to control the variable frequency speed regulation of the motor. Its main function is to adjust the motor speed by changing the voltage, frequency or current. This device usually consists of two parts: a resistor and a frequency converter. By adjusting the resistance value and frequency, the speed and torque of the motor can be controlled.

[0003] For example, a resistor box with a publication number of CNU is characterized in that it includes a box body and a box cover, the box cover is arranged at the top of the box body, a fan for extracting air from the box body is arranged on the side of the box cover close to the box body, a chamber for air circulation is arranged inside the box cover, the area of ​​the side of the box cover connected to the box body is larger than the area of ​​the side of the box body connected to the box cover, and the box cover completely covers the box top, and the part of the box cover that exceeds the box body is provided with an air outlet, and the air outlet is arranged on the side of the box cover close to the box body. The utility model provides a resistor box that has better dust and rainproof capabilities and is suitable for harsh environments.

[0004] A resistor box in the above-mentioned comparative document generally improves its internal air duct to improve the heat dissipation structure of the box. In actual operation, when the internal equipment of the resistor box is running, the resistor will generate heat. However, the heat dissipation structure of the existing resistor box usually dissipates heat for the entire box, resulting in insufficient targeted design during heat dissipation and failure to effectively dissipate heat for the resistor elements. Utility Model Content

[0005] The purpose of the utility model is to provide a heat dissipation structure of a variable frequency resistor box to solve the problem that the heat dissipation structure of the existing resistor box in the above-mentioned background technology usually dissipates heat for the entire box body, resulting in insufficient design specificity during heat dissipation and failure to effectively dissipate heat for the resistor element.

[0006] To achieve the above object, the utility model provides the following technical solutions: a heat dissipation structure of a variable frequency resistor box, comprising a box body, a box door, and a top cover, wherein one side of the box door is hinged to the box body, and the top cover is fixedly connected to the top of the box body;

[0007] Both sides of the box are provided with heat dissipation windows, and two mounting plates are fixedly connected inside the box, and the two mounting plates are distributed at the top and bottom of the inner side of the box, and a heat dissipation structure for dissipating heat from the resistor is provided between the two mounting plates, and the heat dissipation structure is provided with a heat-absorbing copper tube fixedly connected between the other two mounting plates, and a heat-absorbing plate is fixedly connected to the outside of the heat-absorbing copper tube, and two heat-absorbing copper tubes are provided and symmetrically distributed between the two mounting plates;

[0008] A cooling structure for discharging heat from the device is arranged inside the top cover.

[0009] Preferably, two symmetrically distributed fixing rings are fixedly connected to the inner side of the mounting plate, and the two fixing rings are aligned with two heat-absorbing copper tubes. The heat-absorbing copper tubes are configured as a curved structure, and the heat-absorbing copper tubes are configured as a cylindrical shape as a whole.

[0010] Preferably, both ends of the heat-absorbing copper tube pass through the inside of the two mounting plates, and the lower ends of the two heat-absorbing copper tubes are fixedly connected with the first liquid guide tube.

[0011] Preferably, one end of the first liquid-conducting tube away from the heat-absorbing copper tube is fixedly connected to a water tank, and the water tank is fixedly connected to the top of the mounting plate.

[0012] Preferably, a second liquid guiding tube is fixedly connected to the top of the water tank, and a water pump is provided at the end of the second liquid guiding tube, and the water pump is fixedly connected to the top of the water tank.

[0013] Preferably, the cooling structure is provided with a heat dissipation copper tube, and a plurality of equidistantly distributed heat sinks are fixedly connected to the outside of the heat dissipation copper tube, and a circulation tube is fixedly connected to the end of the heat dissipation copper tube, and the end of the heat dissipation copper tube away from the circulation tube is fixedly connected to the second liquid guide tube.

[0014] Preferably, the second liquid guide pipe and the circulation pipe pass through the top of the box body, and the two ends of the heat sink are fixedly connected to the two sides inside the top cover, the top cover is fixedly connected to a fixing frame, and two symmetrically distributed fans are rotatably connected inside the fixing frame, and ventilation holes are provided on both sides of the bottom of the top cover.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The heat dissipation structure of the variable frequency resistor box is provided with a heat dissipation structure. When the equipment is installed inside the box, the main resistance element will be placed between two fixing rings. When the resistance element is in operation, heat will be generated. This part of the heat will be introduced into the heat absorbing plate. Subsequently, the heat absorbing plate transfers the heat to the heat absorbing copper tube, and the heat is dissipated by means of the liquid medium inside the heat absorbing copper tube. The heat absorbing copper tube and the heat absorbing plate are both designed as cylindrical structures, so that the two are closer to the resistance element, thereby improving the heat dissipation efficiency.

[0017] Furthermore, during the operation of the equipment, the water pump is started to drive the liquid medium to be transmitted in the water tank, so that the liquid medium inside the heat-absorbing copper tube can enter the water tank through the first liquid guide tube, and then the liquid medium inside the water tank reaches the second liquid guide tube channel under the drive of the water pump, and further heats up through the heat-dissipating copper tube channel to achieve cooling of the liquid medium, and the cooled liquid medium is then re-injected into the heat-absorbing copper tube through the circulation tube channel to achieve cooling of the heat-absorbing plate;

[0018] Furthermore, a cooling structure is provided. When the liquid medium flows in the heat dissipation copper tube, the heat dissipation copper tube transfers the heat to a plurality of heat sinks. At this time, the two fans in the fixed frame are started to dissipate the heat of the heat sinks through the fans, thereby achieving cooling of the liquid medium inside the heat dissipation copper tube. At the same time, the airflow in the top cover circulates through the two vents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the box door opening structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the box body of the utility model;

[0022] Figure 4 This is a schematic diagram of the explosion structure of the heat-absorbing copper tube of the utility model;

[0023] Figure 5 This is a schematic diagram of the water tank structure of the utility model;

[0024] Figure 6 It is a schematic diagram of the top cover structure of the utility model.

[0025] In the figure: 1. box body; 2. box door; 3. top cover; 4. heat dissipation window; 5. mounting plate; 6. fixing ring; 7. heat-absorbing copper tube; 8. heat-absorbing plate; 9. first liquid guide tube; 10. water tank; 11. second liquid guide tube; 12. water pump; 13. heat dissipation copper tube; 14. heat sink; 15. circulation tube; 16. fixing frame; 17. vent. DETAILED DESCRIPTION

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

[0027] In a further preferred embodiment of the present invention, Figure 1 - Figure 4As shown, a heat dissipation structure of a variable frequency resistor box comprises a box body 1, a box door 2, and a top cover 3, one side of the box door 2 is hinged with the box body 1, and the top cover 3 is fixedly connected to the top of the box body 1; heat dissipation windows 4 are arranged on both sides of the box body 1, and two mounting plates 5 are fixedly connected inside the box body 1, and the two mounting plates 5 are distributed at the top and bottom of the inner side of the box body 1, a heat dissipation structure for dissipating heat from the resistor is arranged between the two mounting plates 5, the heat dissipation structure is provided with a heat-absorbing copper tube 7 fixedly connected between the other two mounting plates 5, and a heat-absorbing plate 8 is fixedly connected to the outer side of the heat-absorbing copper tube 7, and the heat-absorbing copper tube 7 is provided with two symmetrically distributed between the two mounting plates 5; a cooling structure for dissipating heat from the device is arranged inside the top cover 3, two symmetrically distributed fixing rings 6 are fixedly connected to the inner side of the mounting plate 5, and the two fixing rings 6 are aligned with the two heat-absorbing copper tubes 7, the heat-absorbing copper tube 7 is arranged as a curved structure, and the heat-absorbing copper tube 7 is arranged as a cylindrical shape as a whole;

[0028] During the process of installing the device inside the box 1, the main resistance element will be placed between the two fixing rings 6. When the resistance element is in operation, heat will be generated, and this part of the heat will be introduced into the heat absorbing plate 8. Subsequently, the heat absorbing plate 8 transfers the heat to the heat absorbing copper tube 7, and the heat is dissipated by the liquid medium inside the heat absorbing copper tube 7. The heat absorbing copper tube 7 and the heat absorbing plate 8 are both designed as cylindrical structures, so that the two are closer to the resistance element, thereby improving the heat dissipation efficiency.

[0029] In a further preferred embodiment of the present invention, Figure 5 As shown, both ends of the heat-absorbing copper tube 7 pass through the inside of the two mounting plates 5, and the lower ends of the two heat-absorbing copper tubes 7 are fixedly connected to the first liquid guide tube 9, and one end of the first liquid guide tube 9 away from the heat-absorbing copper tube 7 is fixedly connected to the water tank 10, and the water tank 10 is fixedly connected to the top of the mounting plate 5, and the top of the water tank 10 is fixedly connected to the second liquid guide tube 11, and the end of the second liquid guide tube 11 is provided with a water pump 12, and the water pump 12 is fixedly connected to the top of the water tank 10;

[0030] During the operation of the equipment, the water pump 12 is started to drive the liquid medium to be transmitted in the water tank 10, so that the liquid medium inside the heat-absorbing copper tube 7 can enter the water tank 10 through the first liquid guide tube 9. Subsequently, the liquid medium inside the water tank 10 reaches the second liquid guide tube 11 channel driven by the water pump 12, and further dissipates heat through the heat dissipation copper tube 13 channel to achieve cooling of the liquid medium. The cooled liquid medium is then re-injected into the heat-absorbing copper tube 7 through the circulation tube 15 channel to achieve cooling of the heat-absorbing plate 8.

[0031] In a further preferred embodiment of the present invention, Figure 6As shown, the cooling structure is provided with a heat dissipation copper tube 13, and a plurality of heat dissipation fins 14 distributed at equal distances are fixedly connected to the outside of the heat dissipation copper tube 13, and a circulation tube 15 is fixedly connected to the end of the heat dissipation copper tube 13, and at the same time, one end of the heat dissipation copper tube 13 away from the circulation tube 15 is fixedly connected to the second liquid guide tube 11, the second liquid guide tube 11 and the circulation tube 15 pass through the top of the box body 1, and the two ends of the heat dissipation fin 14 are fixedly connected to the two sides inside the top cover 3, the top cover 3 is fixedly connected with a fixing frame 16, and the fixing frame 16 is rotatably connected to two symmetrically distributed fans, and ventilation holes 17 are provided on both sides of the bottom of the top cover 3;

[0032] When the liquid medium flows in the heat dissipation copper tube 13, the heat dissipation copper tube 13 transfers heat to the multiple heat sinks 14. At this time, the two fans in the fixing frame 16 are started to dissipate heat from the heat sink 14 through the fans, thereby achieving cooling of the liquid medium inside the heat dissipation copper tube 13. At the same time, the airflow in the top cover 3 circulates through the two vents 17.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat dissipation structure of a variable frequency resistor box, comprising a box body (1), a box door (2), and a top cover (3), wherein one side of the box door (2) is hingedly connected to the box body (1), and the top cover (3) is fixedly connected to the top of the box body (1); Features: Both sides of the box body (1) are provided with heat dissipation windows (4), and two mounting plates (5) are fixedly connected inside the box body (1), and the two mounting plates (5) are distributed at the top and bottom of the inner side of the box body (1), and a heat dissipation structure for dissipating heat from the resistor is provided between the two mounting plates (5), and the heat dissipation structure is provided with a heat absorbing copper tube (7) fixedly connected between the other two mounting plates (5), and a heat absorbing plate (8) is fixedly connected to the outer side of the heat absorbing copper tube (7), and two heat absorbing copper tubes (7) are provided and symmetrically distributed between the two mounting plates (5); A cooling structure for discharging heat from the device is provided inside the top cover (3).

2. The heat dissipation structure of a variable frequency resistor box according to claim 1, characterized in that: Two symmetrically distributed fixing rings (6) are fixedly connected to the inner side of the mounting plate (5), and the two fixing rings (6) are aligned with two heat-absorbing copper tubes (7). The heat-absorbing copper tubes (7) are configured as a curved structure, and the heat-absorbing copper tubes (7) are configured as a cylindrical shape as a whole.

3. The heat dissipation structure of a variable frequency resistor box according to claim 2, characterized in that: Both ends of the heat-absorbing copper tube (7) pass through the interior of the two mounting plates (5), and the lower ends of the two heat-absorbing copper tubes (7) are fixedly connected to the first liquid guide tube (9).

4. The heat dissipation structure of a variable frequency resistor box according to claim 3, characterized in that: One end of the first liquid-conducting tube (9) away from the heat-absorbing copper tube (7) is fixedly connected to a water tank (10), and the water tank (10) is fixedly connected to the top of the mounting plate (5).

5. The heat dissipation structure of a variable frequency resistor box according to claim 4, characterized in that: A second liquid guiding tube (11) is fixedly connected to the top of the water tank (10), and a water pump (12) is provided at the end of the second liquid guiding tube (11), and the water pump (12) is fixedly connected to the top of the water tank (10).

6. The heat dissipation structure of a variable frequency resistor box according to claim 1, characterized in that: The cooling structure is provided with a heat dissipation copper tube (13), and a plurality of heat dissipation fins (14) distributed at equal intervals are fixedly connected to the outside of the heat dissipation copper tube (13), and a circulation tube (15) is fixedly connected to the end of the heat dissipation copper tube (13), while an end of the heat dissipation copper tube (13) away from the circulation tube (15) is fixedly connected to the second liquid guide tube (11).

7. The heat dissipation structure of a variable frequency resistor box according to claim 6, characterized in that: The second liquid guide pipe (11) and the circulation pipe (15) pass through the top of the box body (1), and the two ends of the heat sink (14) are fixedly connected to the two sides inside the top cover (3). A fixing frame (16) is fixedly connected inside the top cover (3), and two symmetrically distributed fans are rotatably connected inside the fixing frame (16), and ventilation holes (17) are provided on both sides of the bottom of the top cover (3).

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