Inverter heat dissipation shell and inverter

Abstract

The utility model discloses an inverter heat dissipation shell (100) and an inverter, and the inverter heat dissipation shell (100) comprises a base shell (10) which is provided with a mounting groove (11); the cooling fin (20) comprises a bottom plate (21) and blades (22), the blades (22) are arranged on one side face of the bottom plate (21), the periphery of the bottom plate (21) is provided with sliding grooves (211) which are inwards tangent along edges, a cooling part (212) in the middle of the bottom plate (21) is formed, the sliding grooves (211) and the cooling part (212) are both arranged on the other side face of the bottom plate (21), the bottom plate (21) abuts against the periphery of the mounting groove (11) through the sliding grooves (211), and the cooling part (212) is arranged in the mounting groove (11); and welding the joint of the heat dissipation part (212) in the sliding groove (211) and the side wall of the mounting groove (11), so that the base shell (10) and the heat dissipation fins (20) are connected with each other. According to the technical scheme of the utility model, the material cost and the processing cost of the radiating fin are reduced, and the material cost and the installation time of an assembly factory are reduced.

Description

Technical Field

[0001] The utility model relates to the field of charging equipment, in particular to an inverter heat dissipation shell and an inverter. Background Art

[0002] In the past, inverter heat dissipation designs primarily focused on two sealing methods for the heat sink and chassis. The first approach involved attaching waterproof adhesive strips to the corresponding slots on the heat sink, then placing the chassis on top and securing it with screws. This combination of chassis, heat sink, waterproof adhesive strips, and screws had drawbacks. The second approach employed an inverted chassis, heat sink, waterproof adhesive strips, and screws. While this approach simplified the design somewhat, it also presented challenges.

[0003] Both solutions require adding slots for waterproof strips and material for screws to the radiator, further complicating the manufacturing process. Furthermore, the slots for the waterproof strips often require post-processing, increasing production costs. In the second solution, in particular, since the radiator fins are extruded as a single piece, the unnecessary fins below must be milled out, further increasing process complexity and cost. Therefore, a simpler, more economical, and efficient solution for sealing the radiator and chassis is urgently needed to improve the overall performance and reliability of the inverter. Utility Model Content

[0004] The main purpose of the utility model is to provide an inverter heat dissipation shell, aiming to solve the problems of high production cost and complex process in the above solutions.

[0005] To achieve the above-mentioned purpose, the present invention provides an inverter heat dissipation housing, which includes:

[0006] a base shell, wherein the base shell is provided with a mounting groove; and

[0007] The heat sink includes a base plate and blades, the blades are arranged on one side of the base plate, and the base plate has a slide groove cut inward along the edge to form a heat dissipation part in the middle of the base plate. The slide groove and the heat dissipation part are arranged on the other side of the base plate, and the base plate is abutted against the four sides of the mounting groove through the slide groove. The heat dissipation part is arranged in the mounting groove, and the connection between the heat dissipation part and the side wall of the mounting groove in the slide groove is welded to connect the base shell and the heat sink to each other.

[0008] Optionally, the heat dissipation portion is provided with a first bevel angle, which is provided at a corner of the heat dissipation portion and communicates with the sliding groove.

[0009] Optionally, the heat dissipation portion is further provided with a second bevel angle, which is provided at another corner of the heat dissipation portion and communicates with the slide groove, and the first bevel angle and the second bevel angle are provided opposite to each other in the heat dissipation portion.

[0010] Optionally, the mounting slot has a first bevel portion adapted to the first bevel angle, the first bevel portion is provided at a corner of the mounting slot, and the first bevel portion fits tightly to the first bevel angle.

[0011] Optionally, a plurality of blades are provided, and the plurality of blades are arranged side by side with intervals therebetween to form a plurality of heat dissipation gaps.

[0012] Optionally, the heat dissipation portion is further provided with a supporting protrusion, and the supporting protrusion is provided in at least one of the heat dissipation gaps.

[0013] Optionally, the heat dissipation portion is further provided with a heat dissipation groove, and the heat dissipation groove is provided in at least one of the heat dissipation gaps.

[0014] The base shell is further provided with a connecting portion and a frame, wherein the frame is provided on the periphery of the connecting portion, the connecting portion protrudes toward the heat sink to form a cavity, and the mounting groove is provided on the heat dissipation portion and communicates with the cavity.

[0015] The present invention further provides an inverter, comprising:

[0016] The aforementioned inverter heat sink; and

[0017] A current conversion device is provided in the inverter heat dissipation shell.

[0018] Optionally, the current conversion device is provided with a connector, the heat sink is provided with a connection point, the heat sink is provided in the mounting groove, and the connector is connected to the connection point.

[0019] The inverter heat sink housing of this utility model utilizes a welded connection between the heat sink portion within the chute and the sidewalls of the mounting slot to achieve a seal between the heat sink and the housing. This welded connection provides greater strength than conventional screw fastening. Blades are positioned on one side of the base plate, facing the base plate for ventilation and heat dissipation. The base plate is surrounded by inward-cut chute grooves, making it easy to machine and install. The base plate is positioned and aligned with the mounting slots via the chute grooves. The heat sink is positioned within the mounting slots via the heat sink portion, dissipating heat from the base housing. Furthermore, positioning the heat sink eliminates the need for secondary processing, reducing the material and processing costs of the heat sink, as well as the material costs and installation time of the assembly plant.

[0020] Furthermore, the inverter using the inverter heat sink not only has better stability, but is also easy to assemble and has low production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 This is an exploded view of the inverter heat dissipation housing 100 of the present invention;

[0023] Figure 2 This is a schematic structural diagram of the inverter heat dissipation housing 100 of the present invention;

[0024] Figure 3 Schematic diagram of the structure of the heat sink 20 in the present invention;

[0025] Figure 4 Schematic diagram of the structure of the base shell 10 of the present invention;

[0026] Figure 5 Schematic diagram of the partial structure of the base shell 10 of the present invention;

[0027] Figure 6 This is a schematic structural diagram of the heat sink 20 in the present invention from another perspective;

[0028] Figure 7 This is a structural diagram of the inverter heat dissipation housing 100 of the present invention from another perspective.

[0029] Description of Figure Numbers:

[0030]

[0031] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0032] 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.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications 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.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can 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 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.

[0035] The utility model proposes an inverter heat dissipation shell 100, referring to Figure 1 and Figure 2 The inverter heat dissipation shell 100 includes a base shell 10 and a heat sink 20. The base shell 10 is provided with a mounting groove 11. The heat sink 20 includes a bottom plate 21 and blades 22. The blades 22 are provided on one side of the bottom plate 21. The bottom plate 21 has a sliding groove 211 cut inward along the edge around it to form a heat dissipation portion 212 in the middle of the bottom plate 21. The sliding groove 211 and the heat dissipation portion 212 are provided on the other side of the bottom plate 21. The bottom plate 21 is abutted against the four sides of the mounting groove 11 through the sliding groove 211 to realize the positioning of the heat sink 20, which is convenient for assembly during the production process. The heat dissipation portion 212 is provided in the mounting groove 11, and the structures of the two are adapted, that is, the area of ​​the heat dissipation portion 212 is the same or similar to the area of ​​the mounting groove 11. The connection between the heat dissipation portion 212 in the sliding groove 211 and the side wall of the mounting groove 11 is further welded to connect the base shell 10 and the heat sink 20 to each other. Preferably, the welding method adopts laser welding.

[0036] By welding the connection between the heat dissipation portion 212 within the groove 211 and the sidewall of the mounting slot 11, the heat sink 20 is connected and sealed to the housing 10. The welded connection is stronger than conventional screw fastening. Blades 22 are located on one side of the base plate 21, facing the base plate 21 for ventilation and heat dissipation. The base plate 21 is surrounded by grooves 211 that cut inward along the edges, making it easy to process and install. The base plate 21 is positioned and adapted to the mounting slot 11 via the grooves 211. The heat sink 20 is located in the mounting slot 11 via the heat dissipation portion 212, dissipating heat from the base housing 10. Compared to conventional radiators that require the addition of waterproof rubber strips and screws, this reduces production costs and processing steps. Furthermore, positioning the heat sink 20 eliminates the need for secondary processing of the heat sink, reducing both heat sink material and processing costs, while also reducing assembly plant material costs and installation man-hours.

[0037] In one embodiment, reference Figure 3 The heat dissipation portion 212 is provided with a first bevel angle 2121, which is provided at a corner of the heat dissipation portion 212 and is connected to the slide groove 211. During the assembly process, the first bevel angle 2121 helps to position the installation of the heat sink 20 and can prevent the assembly personnel from making mistakes.

[0038] Based on the aforementioned embodiment, the heat dissipation portion 212 is further provided with a second bevel angle 2122, which is provided at another corner of the heat dissipation portion 212 and is connected to the slide groove 211. The first bevel angle 2121 and the second bevel angle 2122 are relatively provided on the heat dissipation portion 212. Similarly, by providing the first bevel angle 2121 and the second bevel angle 2122, the heat sink 20 can be subjected to balanced force when connected, making it more stable after installation, while enhancing the positioning and anti-foolproofing effects.

[0039] Based on the above embodiments, Figure 4 and Figure 5 The mounting groove 11 has a first bevel portion 1111 adapted to the first bevel angle 2121. The first bevel portion 1111 is provided at a corner of the mounting groove 11. The first bevel portion 1111 fits tightly against the first bevel angle 2121. The first bevel portion 1111 increases the welding contact area on the side of the mounting groove 11 to strengthen the connection strength between the base shell 10 and the heat sink 20.

[0040] Preferably, two first bevel portions 1111 are provided, respectively adapted to the first bevel angle 2121 and the second bevel angle 2122 , further increasing the welding area of ​​the side of the mounting groove 11 . After laser welding, the connection strength between the base shell 10 and the heat sink 20 is tighter.

[0041] In one embodiment, reference Figure 6There are multiple blades 22, and the multiple blades 22 are arranged side by side and spaced apart to form multiple heat dissipation gaps 221, which are conducive to air flow and heat dissipation of the inverter. Among them, the material of the base shell 10 can be set to a metal with better heat transfer performance, such as copper, aluminum, etc.

[0042] Based on the aforementioned embodiment, the heat dissipation portion 212 is further provided with a supporting protrusion 222, which is arranged in at least one heat dissipation gap 221 to support the blade 22, so that the structure of the heat sink 20 is more stable. Specifically, a plurality of supporting protrusions 222 are provided to increase the supporting force, and the plurality of supporting protrusions 222 are respectively arranged between the plurality of heat dissipation gaps 221, and the volumes of the plurality of supporting protrusions 222 are different.

[0043] Based on the aforementioned embodiment, the heat dissipation portion 212 is further provided with a heat dissipation groove 223, which is provided in at least one heat dissipation gap 221 to increase the air flow space and improve the heat dissipation performance of the heat dissipation gap 221. Specifically, a plurality of heat dissipation grooves 223 are provided, and the plurality of heat dissipation grooves 223 are respectively provided between the plurality of heat dissipation gaps 221, and the groove depths of the plurality of heat dissipation grooves 223 are different to increase the heat dissipation capacity of the heat sink 20.

[0044] In one embodiment, reference Figure 4 and Figure 7 The base shell 10 is further provided with a connecting portion 101 and a frame 102. The frame 102 is provided on the outer periphery of the connecting portion 101. The connecting portion 101 and the frame 102 are integrally provided. The connecting portion 101 protrudes toward the direction of the heat sink 20 to form a cavity 103. The mounting groove 11 is provided in the heat dissipation portion 212 and is connected to the cavity 103. A circuit board, a current conversion device, etc. can be provided in the cavity to dissipate heat.

[0045] The present invention further provides an inverter, which includes:

[0046] The inverter heat sink 100 and the current conversion device, the current conversion device is arranged in the inverter heat sink 100. The inverter heat sink 100 can achieve the implementation effects of all the aforementioned embodiments, so they are not described one by one. The inverter using the inverter heat sink 100 not only has better stability, but also is easy to assemble and has low production cost.

[0047] Optionally, the current conversion device is provided with a connector, and the heat sink 20 is provided with a connection point. After the heat sink 20 is arranged in the mounting groove 11, the connector is connected to the connection point, such as by spool fitting, soldering, etc., to strengthen the fixation of the heat sink 20 and make the overall structure of the inverter more stable.

[0048] 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 by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An inverter heat dissipation housing (100), characterized in that: The inverter heat dissipation housing (100) comprises: A base shell (10), wherein the base shell (10) is provided with a mounting groove (11); and A heat sink (20), the heat sink (20) comprising a base plate (21) and blades (22), the blades (22) being arranged on one side of the base plate (21), the base plate (21) having a sliding groove (211) cut inward along the edge around the periphery thereof, and forming a heat dissipation portion (212) in the middle of the base plate (21), the sliding groove (211) and the heat dissipation portion (212) being arranged on the other side of the base plate (21), the base plate (21) being in contact with the periphery of the mounting groove (11) through the sliding groove (211), and the heat dissipation portion (212) being arranged in the mounting groove (11); The connection between the heat dissipation portion (212) in the slide groove (211) and the side wall of the installation groove (11) is welded to connect the base shell (10) and the heat sink (20) to each other.

2. The inverter heat dissipation housing (100) according to claim 1, characterized in that: The heat dissipation portion (212) is provided with a first bevel angle (2121), and the first bevel angle (2121) is provided at a corner of the heat dissipation portion (212) and is in communication with the slide groove (211).

3. The inverter heat dissipation housing (100) according to claim 2, characterized in that: The heat dissipation portion (212) is further provided with a second bevel angle (2122), the second bevel angle (2122) being provided at another corner of the heat dissipation portion (212) and being in communication with the slide groove (211), the first bevel angle (2121) and the second bevel angle (2122) being arranged opposite to each other.

4. The inverter heat dissipation housing (100) according to claim 2, characterized in that: The mounting groove (11) has a first bevel portion (1111) adapted to the first bevel angle (2121), the first bevel portion (1111) being provided at a corner of the mounting groove (11), and the first bevel portion (1111) being closely fitted to the first bevel angle (2121).

5. The inverter heat dissipation housing (100) according to claim 1, characterized in that: A plurality of blades (22) are provided, and the plurality of blades (22) are arranged side by side with intervals therebetween to form a plurality of heat dissipation gaps (221).

6. The inverter heat dissipation housing (100) according to claim 5, characterized in that: The heat dissipation portion (212) is further provided with a supporting protrusion (222), and the supporting protrusion (222) is provided in at least one of the heat dissipation gaps (221).

7. The inverter heat dissipation housing (100) according to claim 5, characterized in that: The heat dissipation portion (212) is further provided with a heat dissipation groove (223), and the heat dissipation groove (223) is provided in at least one of the heat dissipation gaps (221).

8. The inverter heat dissipation housing (100) according to claim 1, characterized in that: The base shell (10) is further provided with a connecting portion (101) and a frame (102); the frame (102) is provided on the periphery of the connecting portion (101); the connecting portion (101) protrudes toward the heat sink (20) to form a cavity (103); and the mounting groove (11) is provided on the heat dissipation portion (212) and communicates with the cavity (103).

9. An inverter, characterized in that: The inverter comprises: The inverter heat dissipation housing (100) according to any one of claims 1 to 8; and A current conversion device is provided in the inverter heat dissipation shell (100).

10. The inverter according to claim 9, wherein: The current conversion device is provided with a connecting piece, the heat sink (20) is provided with a connecting point, and after the heat sink (20) is arranged in the mounting groove (11), the connecting piece is connected to the connecting point.

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