Epoxy surface reinforced cooling capacitor

Abstract

The utility model relates to a capacitor, in particular to an epoxy surface reinforced cooling capacitor. An epoxy surface reinforced cooling capacitor comprises a shell, an epoxy glue layer arranged in the shell in an injection molding mode, a terminal table used for fixing after the epoxy glue layer is fixed, a plurality of terminal limiting seats arranged on the terminal table, a first electrode copper bar and a second electrode copper bar arranged on the terminal limiting seats, and an aluminum plate covered on the surface of the epoxy glue layer. Clamping blocks extending outwards are arranged at the two ends of the aluminum plate, and clamping grooves matched with the clamping blocks are formed in the inner side wall of the shell. According to the capacitor with the reinforced cooling epoxy surface, through the aluminum plate covering the epoxy glue layer, the heat dissipation efficiency of the epoxy glue layer is improved, the heat of the capacitor is further reduced, and the service life is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to a capacitor, in particular to a capacitor with epoxy surface enhanced cooling. Background Art

[0002] After the capacitor is packaged, the internal temperature of the capacitor component is high when working, and the heat dissipation effect drops rapidly after packaging. Although the surface of the capacitor will contact the cooling water pipe during normal overcharging to facilitate cooling of the capacitor, the thermal conductivity of the epoxy glue is not high after contact with the cooling pipe after epoxy packaging.

[0003] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a capacitor with epoxy surface enhanced cooling to make it more valuable for industrial use. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a capacitor with epoxy surface enhanced cooling.

[0005] The utility model discloses a capacitor with epoxy surface enhanced cooling, comprising a shell, an epoxy adhesive layer is injection-molded in the shell, a terminal block is used to fix the epoxy adhesive layer, a plurality of terminal limit seats are arranged on the terminal limit seats, an electrode copper bar 1 and an electrode copper bar 2 are arranged on the terminal limit seats, and an aluminum plate is covered on the surface of the epoxy adhesive layer.

[0006] This capacitor with epoxy surface enhanced cooling has an aluminum plate covered on its surface while the epoxy layer is being poured. After the epoxy layer is cooled, the capacitor components are encapsulated in the casing, and the motor copper bar 1 and the electrode copper bar 2 are also encapsulated. The fast thermal conductivity of the aluminum plate is used to accelerate the interactive heat dissipation efficiency between the capacitor and the cooling water pipeline.

[0007] Furthermore, there are card blocks extending outward at both ends of the aluminum plate, and there are card slots matching the card blocks on the inner side wall of the shell.

[0008] The aluminum plate is installed on the card slot inside the shell through the card blocks extending at both ends to complete the positioning installation.

[0009] Furthermore, one end of the aluminum plate has a clamping block, and the other end has two clamping blocks.

[0010] The purpose of setting inconsistent numbers of blocks at both ends of the aluminum plate is to enable accurate positioning during installation and improve installation efficiency.

[0011] Furthermore, a through hole is opened in the middle of the aluminum plate.

[0012] There is a through hole in the middle of the aluminum plate. When the epoxy layer is plastic-sealed, the epoxy layer is inserted into the through hole to complete the positioning of the center of the aluminum plate.

[0013] Furthermore, there are staggered first ribs at the bottom of the shell.

[0014] The first rib at the bottom of the shell protrudes upward, and when the epoxy adhesive layer is packaged, the first rib is stuck in the epoxy adhesive layer to provide a better limiting effect.

[0015] Furthermore, the first ribs extend to the side walls of the shell to form second ribs.

[0016] The second rib is on the inner side wall of the shell and has the same function as the first rib.

[0017] Through the above scheme, the present invention has at least the following advantages: this capacitor with enhanced cooling on the epoxy surface improves the heat dissipation efficiency of the epoxy layer by covering the aluminum plate on the epoxy layer, thereby reducing the heat of the capacitor and effectively improving the service life.

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of removing the epoxy adhesive layer of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the electrode copper bar on the terminal platform of the utility model;

[0023] Figure 4 It is a schematic diagram of the shell of the utility model Figure 1 ;

[0024] Figure 5 It is a schematic diagram of the shell of the utility model Figure 2 ;

[0025] In the figure, 1, housing, 2, epoxy adhesive layer, 3, terminal block, 4, terminal limit seat, 5, electrode copper bar 1, 6, electrode copper bar 2, 7, aluminum plate, 8, clamping block, 9, clamping slot, 10, first rib, 11, second rib. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] See also Figure 1-3 The shell 1 of the capacitor with epoxy surface enhanced cooling is a frame structure with an upper opening. The terminal block 3, electrode copper bar 1 5, electrode copper bar 2 6 and aluminum plate 7 of the capacitor are placed at corresponding installation positions on the shell 1, and then epoxy glue is injected into the shell 1. After the epoxy glue is cooled, an epoxy glue layer 2 is formed. The epoxy glue layer 2 wraps the above components to fix the above components, and the aluminum plate 7 is exposed above the capacitor to facilitate contact with the cooling water pipeline of the electric drive controller, thereby improving the heat transfer coefficient of the epoxy glue layer 2 and effectively reducing the temperature of the capacitor body.

[0028] See also Figure 2 , 4 and 5, the two ends of the aluminum plate 7 are outwardly extending blocks 8, the size of the block 8 matches the slot 9 on the inner wall of the shell 1, and after the block 8 is inserted into the slot 9, the support and limit of the aluminum plate 7 are completed, which facilitates the glue pouring operation.

[0029] In order to facilitate the installation of the aluminum plate 7, a clamping block 8 is provided at one end of the aluminum plate 7, and two clamping blocks 8 are provided at the other end. During assembly, the installation direction can be distinguished, thereby improving the efficiency of installation.

[0030] The diameter of the through hole on the aluminum plate 7 is slightly larger. When the glue pouring operation is performed, a bump that is inserted into the through hole is formed on the epoxy glue layer 2 to improve the fixing and limiting of the aluminum plate 7.

[0031] See also Figure 4 and 5 There are first ribs 10 and second ribs 11 on the bottom and side walls of the shell 1 respectively. When the epoxy adhesive layer 2 is cured, a groove that cooperates with the first ribs 10 and the second ribs 11 is formed at the bottom of the epoxy adhesive layer 2, which can make the epoxy adhesive layer 2 more firmly positioned.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred implementation mode of the present utility model and is not intended to limit the present utility model. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A capacitor with epoxy surface enhanced cooling, comprising a housing (1), characterized in that: A shell (1) is provided, wherein an epoxy adhesive layer (2) is injection molded inside the shell (1), and after the epoxy adhesive layer (2) is fixed, a terminal block (3) is fixed thereon, a plurality of terminal limit seats (4) are provided on the terminal block (3), an electrode copper bar 1 (5) and an electrode copper bar 2 (6) are placed on the terminal limit seats (4), and an aluminum plate (7) is covered on the surface of the epoxy adhesive layer (2).

2. The capacitor with epoxy surface enhanced cooling according to claim 1, characterized in that: There are outwardly extending clamping blocks (8) at both ends of the aluminum plate (7), and there are clamping grooves (9) matching the clamping blocks (8) on the inner side wall of the housing (1).

3. The capacitor with epoxy surface enhanced cooling according to claim 2, characterized in that: One end of the aluminum plate (7) has a clamping block (8), and the other end has two clamping blocks (8).

4. The capacitor with epoxy surface enhanced cooling according to claim 3, characterized in that: A through hole is formed in the middle of the aluminum plate (7).

5. The capacitor with epoxy surface enhanced cooling according to claim 4, characterized in that: The bottom of the housing (1) is provided with staggered first ribs (10).

6. The capacitor with epoxy surface enhanced cooling according to claim 5, characterized in that: The first rib (10) extends to the side wall of the housing (1) to form a second rib (11).

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