High-protection liquid cooling frequency converter

Abstract

The utility model discloses a high protection liquid cooling frequency converter, which comprises a box body, a control panel, a power assembly and a heat dissipation module, the box body comprises a bottom shell with an accommodating cavity and a surface shell capable of covering the bottom shell to seal the accommodating cavity, and the control panel and the power assembly are electrically connected and are both accommodated in the accommodating cavity. The bottom of the bottom shell is provided with an installation groove which is recessed inwards, a partition plate is installed at the installation groove, the power assembly is arranged on the bottom shell, a part of the power assembly is exposed on the partition plate, and the heat dissipation module is embedded in the installation groove and connected with the exposed part of the power assembly.

Description

Technical Field

[0001] The utility model relates to the field of frequency converters, in particular to a high-protection liquid-cooled frequency converter. Background Art

[0002] Frequency converters (VFDs), driving and controlling motors and equipment, play a crucial role in industrial production, enabling energy conservation and consumption reduction, precise control, and meeting process requirements. They are widely used in the petroleum, steel, chemical, textile, electronics manufacturing, fans, pumps, and other fields. Many of these applications are subject to harsh environments, including high temperatures, high humidity, high dust levels (including metal dust, high oil content), and outdoor applications. Therefore, improving the heat dissipation capabilities of VFDs has become a pressing issue. Utility Model Content

[0003] The main purpose of the utility model is to provide a high-protection liquid-cooled inverter, aiming to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the utility model proposes a high-protection liquid-cooled inverter including a box body, a control board, a power component and a heat dissipation module. The box body includes a bottom shell having a cavity and a surface shell that can be covered on the bottom shell to close the cavity. The control board and the power component are electrically connected and both are accommodated in the cavity. The bottom of the bottom shell is provided with an installation groove that is recessed inward, and a partition is installed at the installation groove. The power component is arranged on the bottom shell and partially exposed on the partition. The heat dissipation module is embedded in the installation groove and connected to the exposed part of the power component.

[0005] In one embodiment, the power assembly includes a functional unit and a power module connected to the functional unit, and the power module is disposed below the functional unit and exposed in the mounting groove.

[0006] In one embodiment, a heat-conducting through hole is opened on the partition, and the power module is embedded in the heat-conducting through hole and contacts the heat dissipation module surface.

[0007] In one embodiment, the heat dissipation module includes a heat dissipation shell, the power module is in contact with the upper end surface of the heat dissipation shell, a liquid inlet and a liquid outlet are provided on the end surface of the heat dissipation shell, a cooling water channel is provided inside the heat dissipation shell, and the two ends of the cooling water channel are respectively connected to the liquid inlet and the liquid outlet.

[0008] In one embodiment, a plurality of screw holes surrounding the outside of the thermal conductive through hole are formed on the partition, so that fasteners can pass through the screw holes to fasten the heat dissipation housing and the partition together.

[0009] In one embodiment, an O-ring is pressed between the heat dissipation housing and the mounting groove.

[0010] In one embodiment, a mounting hole is provided on the face shell, and a control panel electrically connected to the control board is installed at the mounting hole.

[0011] In one embodiment, a waterproof gasket is crimped between the surface shell and the bottom shell.

[0012] In one embodiment, a plurality of waterproof connectors are installed on the box.

[0013] In the technical solution of the present invention, a high-protection liquid-cooled inverter includes a housing, a control board, a power component, and a heat dissipation module. The housing includes a bottom shell having a cavity and a cover that can be covered on the bottom shell to close the cavity. The control board and the power component are electrically connected and both are accommodated in the cavity. The bottom of the bottom shell is provided with an installation groove that is recessed toward the interior, and a partition is installed at the installation groove. The power component is provided on the bottom shell and partially exposed on the installation groove. The heat dissipation module is embedded in the installation groove and connected to the exposed portion of the power component. Therefore, in the present technical solution, the heat generated by the power component can be dissipated through the heat dissipation module, so that the housing is less affected, thereby greatly improving the protection level of the inverter, making it dustproof and waterproof, and can be used in various harsh environments indoors and outdoors, and improving the reliability and stability of the inverter and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0015] Figure 1 This is a structural diagram of a high-protection liquid-cooled inverter according to an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a high-protection liquid-cooled inverter according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic structural diagram of a heat dissipation module according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic structural diagram of a partition according to an embodiment of the present invention.

[0019] Explanation of the accompanying figures: 10. Box body; 11. Bottom shell; 12. Surface shell; 13. Cavity; 14. Mounting slot; 15. Mounting hole; 20. Control board; 30. Power component; 31. Functional unit; 32. Power module; 40. Heat dissipation module; 41. Heat dissipation shell; 42. Liquid inlet; 43. Liquid outlet; 44. Cooling water channel; 50. Partition; 51. Thermal through hole; 52. Screw hole; 60. O-ring; 70. Control panel; 80. Waterproof connector; 90. Waterproof gasket.

[0020] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0024] Moreover, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0025] The utility model provides a high-protection liquid-cooling frequency converter.

[0026] like Figure 1-4As shown, the high-protection liquid-cooled inverter provided by the embodiment of the present invention includes a case 10, a control board 20, a power component 30 and a heat dissipation module 40. The case 10 includes a bottom shell 11 with a cavity 13 and a surface shell 12 that can be covered on the bottom shell 11 to close the cavity 13. The control board 20 and the power component 30 are electrically connected and both are accommodated in the cavity 13. The bottom of the bottom shell 11 is provided with a mounting groove 14 that is recessed inward, and a partition 50 is installed at the mounting groove 14. The power component 30 is provided on the bottom shell 11 and partially exposed on the partition 50. The heat dissipation module 40 is embedded in the mounting groove 14 and is connected to the exposed part of the power component 30.

[0027] In this embodiment, the heat generated by the power component 30 can be dissipated through the heat dissipation module 40, so that the box 10 is less affected, thereby greatly improving the protection level of the inverter, making it dustproof and waterproof, and can be used in various harsh environments indoors and outdoors, and improving the reliability and stability of the inverter's operation and extending its service life.

[0028] The power assembly 30 includes a functional unit 31 and a power module 32 connected to the functional unit 31 . The power module 32 is disposed below the functional unit 31 and exposed in the mounting slot 14 .

[0029] Please refer to Figure 4 The partition 50 is provided with a thermal through-hole 51, and the power module 32 is embedded in the thermal through-hole 51 and is in surface contact with the heat dissipation module 40. In this embodiment, the functional unit 31, the capacitor plate, and the control board 20 are installed in the housing 10. They are an electrical combination that can realize the operation of the inverter. Among them, the power module 32 is the device with the highest heat generation in the electrical combination, so the installed liquid cooling radiator mainly dissipates heat for the power module 32. The lower end face of the power module 32 is located in the thermal through-hole 51, and the heat dissipation module 40 and the power module 32 are in surface contact. When the inverter is working, the heat dissipation module 40 conducts away the heat generated by the power module 32 on the functional unit 31.

[0030] Among them, the partition 50 is provided with a plurality of screw holes 52 surrounding the outside of the thermal conductive through hole 51, so that the heat dissipation shell 41 and the partition 50 can be fastened together by fasteners passing through the screw holes 52, thereby fixing the heat dissipation module 40 on the partition 50 and placing it in the installation groove 14 outside the box body 10.

[0031] Furthermore, an O-ring 60 is pressed between the heat dissipation housing 41 and the mounting groove 14, thereby improving the sealing between the heat dissipation module 40 and the partition 50. The material of the O-ring 60 can be silicone or nitrile rubber. Preferably, in this embodiment, the O-ring 60 is made of silicone, which has the characteristics of thin size, environmental protection, waterproof, shockproof, high temperature resistance, and good sealing performance.

[0032] Please refer to Figure 3 The heat dissipation module 40 includes a heat dissipation housing 41. The power module 32 contacts the upper end surface of the heat dissipation housing 41. A liquid inlet 42 and a liquid outlet 43 are provided on the end surface of the heat dissipation housing 41. A cooling water channel 44 is provided within the heat dissipation housing 41. The ends of the cooling water channel 44 are connected to the liquid inlet 42 and the liquid outlet 43, respectively. Cooling liquid enters the radiator through the liquid inlet 42. Heat generated by the power module 32 in the functional unit 31 is transferred to the cooling liquid through the radiator. Finally, the cooling liquid flows out through the liquid outlet 43.

[0033] The housing 12 is provided with a mounting hole 15 , and a control panel 70 electrically connected to the control board 20 is mounted at the mounting hole 15 , so that the inverter can be controlled through the control panel 70 .

[0034] A waterproof gasket 90 is crimped between the top shell 12 and the bottom shell 11. In this embodiment, the waterproof gasket 90 can be made of EVA foam, silicone, silicone rubber, etc. Preferably, in this embodiment, the waterproof gasket 90 is made of EVA foam, which has the characteristics of environmental protection, waterproof, shock resistance, good elasticity, and good sealing performance.

[0035] Several waterproof connectors 80 are provided at one end of the bottom of the housing 10. The input, output, and control cables required by the inverter are introduced into the housing 10 through these waterproof connectors 80 and connected to the functional unit 31. This forms a completely sealed cavity in the housing 10, protecting the functional unit 31, the control board 20, and the capacitor board from the harsh external environment.

[0036] The material of the cover and bottom shell 11 box body 10 can be plastic, sheet metal, aluminum alloy or other engineering materials. Preferably, sheet metal material is used in this embodiment, and the box body 10 adopts a closed welding process and is sprayed on the surface, which has the characteristics of being beautiful, strong and durable.

[0037] It is understandable that the present application does not aim at improving the specific electrical components and connection methods of the inverter. The specific components of the inverter and their related electrical connection methods can adopt the existing technology, and this application will not elaborate on them.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A high protection liquid cooling inverter, characterized in that: The high-protection liquid-cooled inverter comprises a housing (10), a control board (20), a power component (30) and a heat dissipation module (40); the housing (10) comprises a bottom shell (11) having a cavity (13) and a surface shell (12) which can be covered on the bottom shell (11) to close the cavity (13); the control board (20) and the power component (30) are electrically connected and both accommodated in the cavity (13); a mounting groove (14) which is recessed inward is provided at the bottom of the bottom shell (11); a partition (50) is installed at the mounting groove (14); the power component (30) is arranged on the bottom shell (11) and partially exposed on the partition (50); the heat dissipation module (40) is embedded in the mounting groove (14) and connected to the exposed portion of the power component (30).

2. The high protection liquid-cooled inverter according to claim 1, characterized in that: The power assembly (30) comprises a functional unit (31) and a power module (32) connected to the functional unit (31); the power module (32) is arranged below the functional unit (31) and exposed in the mounting groove (14).

3. The high protection liquid cooling inverter according to claim 2, characterized in that: A heat-conducting through hole (51) is provided on the partition (50), and the power module (32) is embedded in the heat-conducting through hole (51) and is in surface contact with the heat dissipation module (40).

4. The high protection liquid cooling inverter according to claim 3, characterized in that: The heat dissipation module (40) includes a heat dissipation shell (41), the power module (32) contacts the upper end surface of the heat dissipation shell (41), a liquid inlet (42) and a liquid outlet (43) are provided on the end surface of the heat dissipation shell (41), a cooling water channel (44) is provided inside the heat dissipation shell (41), and the two ends of the cooling water channel (44) are respectively connected to the liquid inlet (42) and the liquid outlet (43).

5. The high protection liquid cooling inverter according to claim 4, characterized in that: The partition (50) is provided with a plurality of screw holes (52) surrounding the outside of the heat-conducting through hole (51), so that the heat dissipation housing (41) and the partition (50) can be fastened together by fasteners passing through the screw holes (52).

6. The high protection liquid cooling inverter according to claim 4, characterized in that: An O-type sealing ring (60) is pressed between the heat dissipation housing (41) and the mounting groove (14).

7. The high protection liquid cooling inverter according to claim 1, characterized in that: The face shell (12) is provided with a mounting hole (15), and a control panel (70) electrically connected to the control board (20) is mounted at the mounting hole (15).

8. The high protection liquid cooling inverter according to claim 1, characterized in that: A waterproof gasket (90) is pressed between the surface shell (12) and the bottom shell (11).

9. The high protection liquid cooling inverter according to claim 1, characterized in that: A plurality of waterproof joints (80) are installed on the box body (10).

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