Frequency converter cooling device based on DTC

Abstract

The utility model discloses a DTC-based frequency converter cooling device, and relates to the technical field of frequency converter cooling devices, the DTC-based frequency converter cooling device comprises a box body, the middle part of the inner cavity of the box body is fixedly connected with a frequency converter main body, the rear side of the box body is fixedly connected with a heat dissipation mechanism, and the left part of the front side of the inner cavity of the box body is rotatably connected with a movable plate. According to the DTC-based frequency converter cooling device of the utility model, through the cooperation of the heat dissipation box, the first heat dissipation fins, the heat dissipation fan, the cooling box, the heat dissipation pipe, the heat absorption pipe, the water pump and the second heat dissipation fins, the water pump pumps cooling liquid into the heat absorption pipe, the heat absorption pipe absorbs heat generated by the frequency converter and transports the heat into the heat dissipation pipe, and the heat dissipation pipe is in contact with air to dissipate heat. The heat dissipation fan accelerates the contact between air and the heat dissipation pipe and accelerates the cooling of the cooling liquid in the heat dissipation pipe, and the heat dissipation fins increase the contact area with the air, so that the efficient heat dissipation of the frequency converter is realized, the temperature in the equipment is reduced, and the maintenance of the frequency converter is not influenced.

Description

Technical Field

[0001] This utility model relates to the technical field of inverter cooling devices, and in particular to an inverter cooling device based on DTC. Background Technology

[0002] Inverters generate a lot of heat during operation. If the internal temperature of the equipment is not cooled, heat will accumulate, which will reduce the efficiency of the inverter or even cause a fire. Inverter cooling devices are used to cool down and protect the inverter.

[0003] Chinese patent document CN210129822U discloses a ventilation and cooling device for a frequency converter, including a housing, a ventilation column connected to the top of the housing, a top plate fixedly connected to the top of the ventilation column, a frequency converter inside the housing, an inner cavity below the frequency converter, a water tank inside the inner cavity, a water pump on one side of the water tank, heat dissipation windows on both upper sides of the housing, a heat dissipation box inside the heat dissipation windows, an exhaust fan on the inner wall of the heat dissipation box, semiconductor cooling plates at both ends of the exhaust fan on the inner wall of the heat dissipation box, a flow equalization plate installed on the side of the heat dissipation box near the frequency converter, and cooling water pipes surrounding the outside of the frequency converter. The inlet end of the cooling water pipes is connected to one end of the water pump, and the outlet end of the cooling water pipes extends downward to the inner cavity and connects to the top of the water tank. The other end of the water pump is connected to the water tank. This invention can eliminate the heat generated by the frequency converter in a timely manner during operation, thereby ensuring the stable operation of the frequency converter.

[0004] The existing technology has the following problems:

[0005] Although the above-mentioned utility model can cool down the frequency converter, the fact that it surrounds the frequency converter makes it inconvenient to maintain and adjust the frequency converter, as well as inconvenient to open the equipment to maintain and clean the internal components. Utility Model Content

[0006] This invention provides a DTC-based inverter cooling device to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A frequency converter cooling device based on DTC includes a housing, a frequency converter body fixedly connected to the middle of the inner cavity of the housing, a heat dissipation mechanism fixedly connected to the rear side of the housing, a movable plate rotatably connected to the left side of the front side of the inner cavity of the housing, and a fixed plate fixedly connected to the right side of the front side of the inner cavity of the housing.

[0009] The heat dissipation mechanism includes a heat dissipation box, the front of which is fixedly connected to the rear of the box body. A cooling box is fixedly connected to the front of the inner cavity of the heat dissipation box. A heat absorption pipe is fixedly connected to the front of the cooling box. A heat dissipation pipe is fixedly connected to the rear of the cooling box. A water pump is fixedly connected to the bottom left side of the inner cavity of the heat dissipation box. A cooling fan is fixedly connected to the middle of the rear side of the heat dissipation box. Multiple heat dissipation fins are fixedly connected to both the left and right sides of the heat dissipation box. Multiple heat dissipation fins are fixedly connected to both the left and right sides of the box body.

[0010] Preferably, the input end of the heat absorption tube is fixedly connected to the output end of the water pump, the output end of the heat absorption tube is fixedly connected to the input end of the heat dissipation tube, the output end of the heat dissipation tube extends to the upper left side of the inner cavity of the cooling box, and the input end of the water pump extends to the bottom of the inner cavity of the cooling box.

[0011] Preferably, a handle is fixedly connected to the right side of the front of the movable plate, and a fixing mechanism is movably connected to the middle of the right side of the movable plate. The fixing mechanism includes a pull plate, which is slidably connected to the middle left side of the inner cavity of the movable plate. Two sliders are fixedly connected to the rear side of the pull plate, which are distributed vertically. A slide rod is fixedly connected to the middle right side of the inner cavity of the movable plate, and a slider is slidably connected to the outer periphery of the slide rod. A tension spring is fixedly connected to the middle left side of the slider, and a tension spring is fixedly connected to the inner cavity of the rear side of the pull plate.

[0012] Preferably, a limiting plate is fixedly connected to the right end of the slide rod, and the limiting plate is slidably connected to the middle of the second slide block.

[0013] Preferably, the first tension spring is movably sleeved on the outer periphery of the slide rod, and the rear side of the second tension spring is fixedly connected to the rear side of the inner cavity of the movable plate.

[0014] Preferably, multiple ventilation holes are provided on both the left and right sides of the housing and the heat dissipation box.

[0015] Preferably, a grip groove is provided in the middle of the front side of the pull plate.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides a frequency converter cooling device based on DTC. Through the cooperation of a heat sink, heat sink 1, cooling fan, cooling box, heat pipe, heat absorption pipe, water pump and heat sink 2, the water pump draws coolant into the heat absorption pipe, the heat absorption pipe absorbs the heat generated by the frequency converter and transports it to the heat pipe, the heat pipe contacts the air and dissipates heat, the cooling fan accelerates the contact between the air and the heat pipe, accelerates the cooling of the coolant inside the heat pipe, and the heat sink increases the contact area with the air, thus achieving efficient heat dissipation of the frequency converter, reducing the internal temperature of the equipment, and without affecting the maintenance of the frequency converter.

[0018] 2. This utility model provides a frequency converter cooling device based on DTC. Through the cooperation of a pull plate, slider one, slider two, slide rod, tension spring one, limit plate, tension spring two, and grip groove, pulling the pull plate moves slider one away from slider two, thereby causing tension spring one to pull slider two away from the fixed plate. The tension spring one pulls the pull plate, causing slider one to squeeze slider two, so that slider two is locked inside the fixed plate, thus fixing the movable plate, which facilitates opening the equipment and maintaining and replacing internal components. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the lower rear side of this utility model;

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

[0022] Figure 4 This is a schematic diagram of the heat sink structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the heat dissipation mechanism of this utility model;

[0024] Figure 6 This is a cross-sectional view of the movable plate structure of this utility model;

[0025] Figure 7 For the present utility model Figure 6 Enlarged structural diagram of part A in the middle;

[0026] Figure 8 This is a cross-sectional view of the fixing mechanism of this utility model.

[0027] In the diagram: 1. Housing; 2. Movable plate; 3. Fixed plate; 4. Heat dissipation mechanism; 41. Heat dissipation box; 42. Heat sink 1; 43. Cooling fan; 44. Cooling box; 45. Heat dissipation pipe; 46. Heat absorption pipe; 47. Water pump; 48. Heat sink 2; 5. Handle; 6. Fixing mechanism; 61. Pull plate; 62. Slider 1; 63. Slider 2; 64. Sliding rod; 65. Tension spring 1; 66. Limiting plate; 67. Tension spring 2; 68. Grip groove; 7. Inverter body. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] like Figures 1-8As shown, a DTC-based inverter cooling device includes a housing 1, an inverter body 7 fixedly connected to the middle of the inner cavity of the housing 1, a heat dissipation mechanism 4 fixedly connected to the rear side of the housing 1, a movable plate 2 rotatably connected to the left side of the front side of the inner cavity of the housing 1, and a fixed plate 3 fixedly connected to the right side of the front side of the inner cavity of the housing 1.

[0030] The heat dissipation mechanism 4 includes a heat dissipation box 41. The front side of the heat dissipation box 41 is fixedly connected to the rear side of the box body 1. A cooling box 44 is fixedly connected to the front side of the inner cavity of the heat dissipation box 41. A heat absorption pipe 46 is fixedly connected to the front side of the cooling box 44. A heat dissipation pipe 45 is fixedly connected to the rear side of the cooling box 44. A water pump 47 is fixedly connected to the bottom left side of the inner cavity of the heat dissipation box 41. A cooling fan 43 is fixedly connected to the middle of the rear side of the heat dissipation box 41. Multiple heat dissipation fins 42 are fixedly connected to both the left and right sides of the heat dissipation box 41. Multiple heat dissipation fins 48 are fixedly connected to both the left and right sides of the box body 1.

[0031] It should be noted that the enclosure 1 is used to fix the inverter body 7, the movable plate 2 is an outward-opening one-way door for opening the equipment and maintaining the interior, and the control panel is installed on the front of the fixed plate 3 for controlling the heat dissipation mechanism 4 and the inverter body 7. The heat dissipation box 41 is used to house the heat dissipation components, the cooling box 44 is used to hold the coolant, the diameter of the heat dissipation pipe 45 is smaller than the diameter of the heat absorption pipe 46, and the number of heat dissipation pipes 45 is greater than the number of heat absorption pipes 46. The heat absorption pipes 46 are used to absorb the heat generated by the inverter body 7, the heat dissipation pipes 45 are used to increase the contact area to dissipate heat, the water pump 47 is used to draw coolant and deliver it to the heat absorption pipes 46, and the cooling fan 43 is used to accelerate the air circulation inside the heat dissipation box 41 and accelerate the cooling of the heat dissipation pipes 45. The heat sink 1 42 and heat sink 2 48 increase the contact area with the air and improve the heat dissipation efficiency.

[0032] like Figures 3-5 As shown, the input end of the heat absorption pipe 46 is fixedly connected to the output end of the water pump 47, the output end of the heat absorption pipe 46 is fixedly connected to the input end of the heat dissipation pipe 45, the output end of the heat dissipation pipe 45 extends to the upper left side of the inner cavity of the cooling box 44, and the input end of the water pump 47 extends to the bottom of the inner cavity of the cooling box 44.

[0033] It should be noted that the coolant can be continuously drawn from the bottom of the cooling tank 44, absorbs heat through the heat absorption pipe 46, releases heat through the heat dissipation pipe 45 and returns to the top of the cooling tank 44, forming an effective heat exchange cycle.

[0034] like Figures 6-8As shown, a handle 5 is fixedly connected to the right side of the front of the movable plate 2, and a fixing mechanism 6 is movably connected to the middle of the right side of the movable plate 2. The fixing mechanism 6 includes a pull plate 61, which is slidably connected to the middle left side of the inner cavity of the movable plate 2. Two sliders 62, distributed vertically, are fixedly connected to the rear side of the pull plate 61. A slide rod 64 is fixedly connected to the middle right side of the inner cavity of the movable plate 2. A slider 63 is slidably connected to the outer periphery of the slide rod 64. A tension spring 65 is fixedly connected to the middle left side of the slider 63. A tension spring 67 is fixedly connected to the inner cavity of the rear side of the pull plate 61.

[0035] It should be noted that the handle 5 is used to pull the movable plate 2 to rotate. The pull plate 61 is used to facilitate the movement of slider 1 62 from the outside, and the slide bar 64 is used to limit the movement trajectory of slider 2 63. The right side of slider 2 63 is engaged inside the fixed plate 3, thereby fixing the movable plate 2. Pulling the pull plate 61 moves slider 1 62. At this time, the tension spring 1 65 pulls slider 2 63 away from the fixed plate 3. After slider 2 63 is disengaged from the fixed plate 3, the movable plate 2 can be opened. The tension spring 2 67 is used to pull the pull plate 61 to return slider 1 62 to its original position. Slider 1 62 squeezes slider 2 63, thereby making slider 2 63 stably engaged inside the fixed plate 3.

[0036] like Figure 8 As shown, a limiting plate 66 is fixedly connected to the right end of the slide rod 64, and the limiting plate 66 is slidably connected to the middle of the slider 63.

[0037] It should be noted that the limiting plate 66 is used to ensure the stable sliding of slider 63 on the slide bar 64, while also preventing slider 63 from falling off.

[0038] like Figure 8 As shown, tension spring 65 is movably sleeved on the outer periphery of slide rod 64, and tension spring 67 is fixedly connected to the rear side of the inner cavity of movable plate 2.

[0039] It should be noted that tension spring 65 is sleeved on the outer periphery of slide rod 64 to limit the movement trajectory of slider 63, and the rear side of tension spring 67 is fixed to the rear side of the inner cavity of movable plate 2 to ensure that slider 62 can return to its original position.

[0040] like Figure 2 As shown, multiple ventilation holes are provided on both the left and right sides of the housing 1 and the heat dissipation box 41.

[0041] It should be noted that the ventilation holes are used to ensure that air can flow smoothly through heat sink 42 and heat sink 48, thereby improving heat dissipation efficiency and ensuring ventilation inside the equipment.

[0042] like Figure 7 As shown, a grip groove 68 is provided in the middle of the front side of the pull plate 61.

[0043] It should be noted that the grip groove 68 makes it convenient for users to pull the pull plate 61.

[0044] The working principle of this utility model is as follows: When the inverter body 7 is working, the heat dissipation mechanism 4 is activated, and the water pump 47 drives the coolant to circulate between the heat absorption pipe 46 and the heat dissipation pipe 45, absorbing and releasing heat. At the same time, the cooling fan 43 accelerates the airflow, dissipating heat to the outside through the heat sink 42 and the heat sink 48. When maintenance or inspection is required, the operator pulls the pull plate 61 to move the slider 62. The tension spring 65 pulls the slider 63 away from the fixed plate 3, and then the movable plate 2 is opened, allowing operation of the inverter body 7. After the operation is completed, the pull plate 61 is released, and the tension spring 67 pulls the pull plate 61 back to its original position, causing the slider 62 to press against the slider 63, thus locking the slider 63 into the middle left side of the fixed plate 3, fixing the movable plate 2.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A frequency converter cooling device based on DTC, comprising a housing (1), characterized in that: The inverter body (7) is fixedly connected to the middle of the inner cavity of the box (1), the heat dissipation mechanism (4) is fixedly connected to the rear side of the box (1), the movable plate (2) is rotatably connected to the left side of the front side of the inner cavity of the box (1), and the fixed plate (3) is fixedly connected to the right side of the front side of the inner cavity of the box (1). The heat dissipation mechanism (4) includes a heat dissipation box (41), the front side of which is fixedly connected to the rear side of the box body (1). A cooling box (44) is fixedly connected to the front side of the inner cavity of the heat dissipation box (41). A heat absorption pipe (46) is fixedly connected to the front side of the cooling box (44). A heat dissipation pipe (45) is fixedly connected to the rear side of the cooling box (44). A water pump (47) is fixedly connected to the bottom left side of the inner cavity of the heat dissipation box (41). A cooling fan (43) is fixedly connected to the middle of the rear side of the heat dissipation box (41). Multiple heat dissipation fins (42) are fixedly connected to both the left and right sides of the heat dissipation box (41). Multiple heat dissipation fins (48) are fixedly connected to both the left and right sides of the box body (1).

2. The inverter cooling device based on DTC according to claim 1, characterized in that: The input end of the heat absorption tube (46) is fixedly connected to the output end of the water pump (47), the output end of the heat absorption tube (46) is fixedly connected to the input end of the heat dissipation tube (45), the output end of the heat dissipation tube (45) extends to the upper left side of the inner cavity of the cooling box (44), and the input end of the water pump (47) extends to the bottom of the inner cavity of the cooling box (44).

3. The inverter cooling device based on DTC according to claim 1, characterized in that: A handle (5) is fixedly connected to the right side of the front of the movable plate (2). A fixing mechanism (6) is movably connected to the middle of the right side of the movable plate (2). The fixing mechanism (6) includes a pull plate (61). The pull plate (61) is slidably connected to the middle left side of the inner cavity of the movable plate (2). Two sliders (62) are fixedly connected to the rear side of the pull plate (61). A slide rod (64) is fixedly connected to the middle right side of the inner cavity of the movable plate (2). A slider (63) is slidably connected to the outer periphery of the slide rod (64). A tension spring (65) is fixedly connected to the middle left side of the slider (63). A tension spring (67) is fixedly connected to the inner cavity of the rear side of the pull plate (61).

4. The inverter cooling device based on DTC according to claim 3, characterized in that: The right end of the slide bar (64) is fixedly connected to a limiting plate (66), which is slidably connected to the middle of the slider (63).

5. A frequency converter cooling device based on DTC according to claim 4, characterized in that: The first tension spring (65) is movably sleeved on the outer periphery of the slide rod (64), and the rear side of the second tension spring (67) is fixedly connected to the rear side of the inner cavity of the movable plate (2).

6. The inverter cooling device based on DTC according to claim 1, characterized in that: Multiple ventilation holes are provided on both the left and right sides of the box (1) and the heat dissipation box (41).

7. A frequency converter cooling device based on DTC according to claim 3, characterized in that: A grip groove (68) is provided in the middle of the front side of the pull plate (61).

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