CN219628059U - Power converter cover - Google Patents
Power converter cover Download PDFInfo
- Publication number
- CN219628059U CN219628059U CN202320004779.9U CN202320004779U CN219628059U CN 219628059 U CN219628059 U CN 219628059U CN 202320004779 U CN202320004779 U CN 202320004779U CN 219628059 U CN219628059 U CN 219628059U
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- power converter
- layer
- metal
- heat
- converter cover
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Abstract
The utility model provides a power converter lid, by including the component that the composite board punching press integrated formed that thermal conductivity metal flat plate substrate and the insulating film that fully attached to metal flat plate substrate one side formed, this power converter lid includes the heat conduction metal level that takes shape by metal flat plate and the insulating layer that takes shape by the insulating film, this heat conduction metal level is located the whole periphery wall of this power converter lid, this insulating layer fully attaches to the laminating face of this heat conduction metal level inboard, be located the whole inner periphery wall of this power converter lid, closely attach at the heat conduction metal level by the insulating layer and make the comprehensive combination state of zero clearance between them, reduce the thermal resistance that there is the space to produce the air intermediate layer between them, promote the heat conductivility of power converter lid.
Description
Technical Field
The utility model relates to a power converter cover body which is used in a power converter product and provides a protection function for a power conversion module.
Background
The present utility model relates to a transformer product, and more particularly to a transformer product with a power conversion module and a power converter cover covering the power conversion module.
In order to further provide insulation and heat dissipation performance for the power converter module, the conventional power converter cover 6 has a structure including a metal heat conducting member 40 and an insulating member 50 disposed inside the metal heat conducting member 40, wherein the metal heat conducting member 40 is a rectangular cube member with a receiving space formed by stamping the metal heat conducting plate 4, the insulating member 50 is further formed by cutting the insulating plate 5 into a predetermined shape, bending the insulating plate into a three-dimensional shape, and assembling the metal heat conducting member 40 and the insulating member 50, and the insulating member 50 is disposed in the receiving space of the metal heat conducting member 40 to form the power converter cover 6.
However, after the combined power converter cover 6 formed by the two components is combined with the power conversion module 7 to form a transformer product, in the use process of the transformer product, the metal heat conducting component 40 and the insulating component 50 are respectively manufactured and recombined, so that after the insulating component 50 is installed in the metal heat conducting component 40, the insulating component 50 and the inner peripheral wall of the metal heat conducting component 40 cannot be completely adhered to each other, and a gap 51 is formed between the insulating component 50 and the metal heat conducting component 40, so that the high thermal resistance effect caused by an air interlayer formed between the insulating component 50 and the metal heat conducting component 40 is not beneficial to the heat dissipation effect of the power conversion module 7 installed in the power converter cover 6 during operation through the power converter cover 6.
Furthermore, the insulating member is formed separately and then is placed inside the preformed metal heat conductive member, so that it is difficult to completely combine the two members, and the insulating performance of the power converter cover is reduced.
In addition, in terms of product manufacturing, there is a problem that the conventional two-component combined power converter cover has a large number of assembly steps and high assembly cost because the metal heat conductive member and the insulating member are manufactured by separately manufacturing and then combining.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the power converter cover body solves the problems of poor insulating strength and poor heat conducting performance of the existing power converter cover body.
The technical proposal provided by the utility model is as follows: the utility model provides a power converter lid, it is by including a metal flat plate substrate of heat conductivity and a compound panel punching press integrated into one piece that is located a faying surface comprehensive attached's that lies in this metal flat plate substrate an insulating film has the component of accommodation space, this power converter lid includes:
the heat conducting metal layer is formed by the metal flat plate base material and is positioned on the whole peripheral wall of the power converter cover body, and one side of the heat conducting metal layer facing the accommodating space is the bonding surface; and
the insulating layer is formed by the insulating film, is fully attached to the bonding surface of the heat conducting metal layer and is positioned on the whole inner peripheral wall of the power converter cover body facing the accommodating space.
In the power converter cover body described above, the bonding surface is a metal plating layer plated on the heat conductive metal layer.
In the power converter cover body described above, the heat conductive metal layer is plated with a metal plating layer on the bonding surface facing one side of the accommodating space and on the opposite side.
In the power converter cover body, the heat conducting metal layer is made of pure copper or copper alloy material, the metal plating layer is nickel plating layer or tin plating layer, and the insulating layer is polyimide
In the power converter cover as described above, the thickness of the heat conductive metal layer is 0.3mm to 0.5mm, the thickness of the metal plating layer is 3 μm to 6 μm, and the thickness of the insulating layer is 25 μm to 150 μm.
The utility model has the beneficial effects that the whole structure of the power converter cover body is opened before, so that the power converter cover body can be integrally formed by stamping a heat-conducting metal flat plate substrate and a composite plate material formed by comprehensively attaching one side of the metal flat plate substrate, the whole peripheral wall of the power converter cover body is a heat-conducting metal layer, the whole inner peripheral wall of the power converter cover body is an insulating layer, the insulating layer is tightly attached to the inner side surface of the heat-conducting metal layer, and the insulating layer and the heat-conducting metal layer are in a gapless comprehensive combination state, so that the heat resistance of an air interlayer generated by a gap between the heat-conducting metal layer and the insulating layer can be effectively reduced, and the heat energy generated by the work of the power conversion module is truly conducted to the heat-conducting metal layer through the insulating layer for heat dissipation.
The utility model can further ensure the combination stability between the heat conduction metal layer and the insulating layer by selecting the materials and the thickness of the heat conduction metal layer, the insulating layer and the like, so that the power converter cover body is manufactured by stamping and integrally forming the composite plate. In addition, the utility model can further form a metal coating on one side of the metal plate base material to serve as a bonding surface, so that after the insulating film is bonded to the metal coating of the metal plate base material, the bonding strength between the insulating film and the metal plate base material can be further improved.
The utility model will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the utility model thereto.
Drawings
Fig. 1 is a schematic perspective view of a power converter cover according to a preferred embodiment of the utility model.
Fig. 2 is a schematic side cross-sectional view of a preferred embodiment of the power converter cover shown in fig. 1.
FIG. 3 is a schematic diagram of a manufacturing process of a power converter cover according to a preferred embodiment of the utility model.
Fig. 4 is a schematic cross-sectional view of a transformer product manufactured by combining the power conversion module with the preferred embodiment of the power converter cover shown in fig. 1 and 2.
Fig. 5 is a flowchart of a method for manufacturing a conventional power converter cover.
Fig. 6 is a schematic side cross-sectional view of the assembled prior art power converter cover of fig. 5.
Fig. 7 is a schematic cross-sectional view of a transformer product formed by combining the conventional power converter cover bodies shown in fig. 5 and 6 with a power conversion module.
Wherein, the reference numerals:
1 Metal plate substrate
2, metallic coating film
3 insulating film
A composite board
B, transformer cover body
C, transforming module
10 thermally conductive metal layer
11 Metal coating
20 insulating layer
4 sheet metal
40 metal heat conduction component
5 insulating plate
50 insulating part
51 gap(s)
6 transformer cover
Detailed Description
The structural and operational principles of the present utility model are described in detail below with reference to the accompanying drawings:
as shown in fig. 1 and 2, a preferred embodiment of the power converter cover of the present utility model is disclosed, and as shown in fig. 3, the power converter cover B of the present utility model may be a member having a receiving space integrally formed by punching a composite plate material a comprising a thermally conductive flat metal substrate 1 and an insulating film 3 integrally attached to an attaching surface of one side of the flat metal substrate 1. As shown in fig. 1 to 3, the power converter cover B includes a heat conductive metal layer 10 and an insulating layer 20.
As shown in fig. 1 and 2, the heat conductive metal layer 10 is formed by the metal plate substrate 1 made of the heat conductive metal, and is located on the entire peripheral wall of the power converter cover B, and the side of the heat conductive metal layer 10 facing the accommodating space is the bonding surface. As shown in fig. 1 and 2, the insulating layer 20 is formed by the insulating film 3, and the insulating layer 20 is entirely attached to the bonding surface of the heat conductive metal layer 10 and is located on the entire inner peripheral wall of the power converter cover B facing the accommodating space.
As shown in fig. 1 and 2, in the preferred embodiment, a metal plating layer 11 is plated on one side of the heat-conducting metal layer 10, or a metal plating layer 11 is plated on each side of the heat-conducting metal layer 10, and the metal plating layer 11 plated on one side of the heat-conducting metal layer 10 is used as the bonding surface, and the metal plating film 2 on the other side of the heat-conducting metal layer 10 is used as the protective film. The metal coating 11 is a nickel plating film, a tin plating film, etc. with a fog-like or bright surface, preferably, the thickness of the metal coating 11 is 3 μm-6 μm, so that the metal coating 11 on one side of the heat conducting metal layer 10 is utilized to provide a bonding surface for the insulation layer 20 to be fully attached, and the insulation layer 20 and the heat conducting metal layer 10 made of different materials are used as a bonding medium through the metal coating 11, so as to promote the stable bonding performance between the heat conducting metal layer 10 and the insulation layer 20.
As shown in fig. 1 and 2, the heat conductive metal layer 10 may be made of pure copper, copper alloy or other metal materials with heat conductive property, in the preferred embodiment, the material of the heat conductive metal layer 10 is made of pure copper or copper alloy, the thickness of the heat conductive metal layer 10 is 0.3 mm-0.5 mm, the metal coating 11 is a mist nickel plating layer, the thickness of the mist nickel plating layer is 3 μm-6 μm, the material of the insulating layer 20 may be Polyimide (PI), thermoplastic Polyimide (thermoplastic Polyimide, TPI) or polyethylene terephthalate (polyethylene terephthalate, PET), and the thickness of the insulating layer 20 is 25 μm-150 μm. The Polyimide (PI), thermoplastic Polyimide (TPI) or polyethylene terephthalate (PET) has good electrical insulation properties, thermal stability, thermal conductivity, dimensional stability, chemical resistance, high strength, and other material properties, and the material of the insulating layer 20 is preferably a Polyimide (PI) film, and the thickness of the Polyimide (PI) film is preferably 25 μm, 50 μm, 75 μm, 100 μm, 125 μm or 150 μm. Further, by using the metal plating layer 11 as a mist nickel plating layer, the mist nickel plating layer is located between the heat conductive metal layer 10 made of pure copper or copper alloy and the insulating layer 20 made of Polyimide (PI), thermoplastic Polyimide (TPI) or polyethylene terephthalate (PET), and can provide a good bonding interface for the heat conductive metal layer 10 and the insulating layer 20 made of dissimilar materials, so that the heat conductive metal layer 10 and the insulating layer 20 can be firmly bonded together in a flat manner, and the insulating layer 20 is not easy to peel.
As shown in fig. 3, the present utility model is created by the structure of the power converter cover, and can be manufactured by the following manufacturing method, which comprises the following implementation steps:
providing a heat-conducting metal flat base material 1, wherein the material of the metal flat base material can be pure copper, copper alloy or other metal materials with heat-conducting characteristics;
in the preferred embodiment, a metal plating film 2 is plated on one side or two side surfaces of the metal flat plate substrate 1, and the metal plating film 2 on one side of the metal flat plate substrate 1 is used as the bonding surface, the metal plating film 2 on the other side of the metal flat plate substrate 1 is used as a protective film of the metal flat plate substrate 1, and preferably, the metal plating film 2 is a mist nickel plating film;
attaching an insulating film 3 to the bonding surface of the metal flat plate substrate 1 to form a composite board A, wherein the insulating film 3 can be made of Polyimide (PI), thermoplastic Polyimide (TPI) or polyethylene terephthalate (PET); and
the composite board A is punched to form a three-dimensional power converter cover body B with a containing space, the metal flat base material 1 forms a three-dimensional heat conducting metal layer 10 on the whole peripheral wall of the power converter cover body B, the combined surface is positioned on the inner peripheral surface of the heat conducting metal layer 10, and the insulating film 3 is positioned on the whole peripheral wall of the power converter cover body B facing the containing space and is fully attached to the combined surface to form a three-dimensional insulating layer 20.
As can be seen from the above-mentioned manufacturing method of the power converter cover, the manufacturing method of the power converter cover B is that the flat composite board a consisting of the metal flat base material 1 made of heat conductive metal and the insulating film 3 integrally attached to the bonding surface of the metal flat base material 1 is directly punched to integrally form the power converter cover B in a three-dimensional form, and the manufacturing method of the power converter cover B can effectively save working hours, and the metal flat base material 1 and the insulating film 3 are in plane bonding, so that the effect of overall and smooth attachment can be achieved, and the manufacturing efficiency of the power converter cover B of the utility model is improved by post punching.
As shown in fig. 3, the power converter cover B of the present utility model can be applied to a transformer product as a protective shell covering the outside of the power conversion module C. When the transformer product is electrified to perform the voltage conversion process, the power converter cover B can be positioned outside the power conversion module C to provide electrical insulation, and heat energy generated during the operation of the power conversion module C can be conducted to the heat conducting metal layer 10 through the insulating layer 20 to dissipate heat. After a power converter cover body B with a containing space is integrally formed by stamping a composite board a formed by an insulating film 3 which comprises a heat conductive metal flat plate substrate 1 and an attaching surface on one side of the metal flat plate substrate 1, the whole peripheral wall of the power converter cover body B is a heat conductive metal layer 10, the whole inner peripheral wall of the power converter cover body B is an insulating layer 20, the insulating layer 20 is fully and tightly attached to the inner side surface of the heat conductive metal layer 10, and the insulating layer 20 and the heat conductive metal layer 10 can be fully combined without gaps, so that heat energy generated by the operation of the power conversion module C is directly conducted to the heat conductive metal layer 10 through the insulating layer 20 to dissipate heat.
In summary, the material and thickness of the heat conductive metal layer 10 and the insulating layer 20 can be selected to form the power converter cover B integrally into a three-dimensional shape by punching the composite board a, the structure of the heat conductive material and the insulating material has good heat conductivity and electrical insulation, the insulating layer 20 is fully adhered to the whole surface of one side of the heat conductive metal layer 10, and the thermal resistance of the air interlayer generated between the heat conductive metal layer 10 and the insulating layer 20 due to the gaps between the heat conductive metal layer 10 and the insulating layer 20 can be reduced, so that the heat energy in the power converter cover B is transmitted to the heat conductive metal layer 10 on the outer layer through the insulating layer 20 and is emitted.
In addition, the utility model can further utilize the metal plating layer 11 on one side of the heat conducting metal layer 10 to enhance the bonding stability between the insulating layer 20 and the heat conducting metal layer 10, increase the electric insulation strength, ensure that the insulating layer 20 is not easy to peel off from the heat conducting metal layer 10, and ensure the quality stability of the power converter cover body B product.
In summary, the material and thickness of the heat conductive metal layer 10 and the insulating layer 20 can be selected to make the transformer cover B integrally formed into a three-dimensional shape by extrusion of the composite board a, and the heat conductive material and the insulating material are combined to provide good heat conductivity and electrical insulation, so that the insulating layer 20 is fully adhered to the whole surface of one side of the heat conductive metal layer 10, the heat insulation effect of the air interlayer generated between the heat conductive metal layer 10 and the insulating layer 20 due to the gaps between the heat conductive metal layer 10 and the insulating layer 20 can be avoided, the thermal resistance can be effectively reduced, and the heat energy in the transformer cover B is ensured to be conducted to the heat conductive metal layer 10 on the outer layer through the insulating layer 20 to be emitted.
In addition, the utility model can further utilize the metal plating layer 11 on one side of the heat conducting metal layer 10 to enhance the bonding stability between the insulating layer 20 and the heat conducting metal layer 10, increase the electric insulation strength, ensure that the insulating layer 20 is not easy to peel off from the heat conducting metal layer 10, and ensure the quality stability of the transformer cover body B product.
Of course, the present utility model is capable of other various embodiments and its several details are capable of modification and variation in light of the present utility model, as will be apparent to those skilled in the art, without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (5)
1. The utility model provides a power converter lid, its characterized in that is by including a metal flat board substrate of heat conductivity and the comprehensive attached insulating film of a faying surface that is located this metal flat board substrate one side constitute a composite board punching press integrated into one piece and have the component of accommodation space, this power converter lid includes:
the heat conducting metal layer is formed by the metal flat plate base material and is positioned on the whole peripheral wall of the power converter cover body, and one side of the heat conducting metal layer facing the accommodating space is the bonding surface; and
the insulating layer is formed by the insulating film, is fully attached to the bonding surface of the heat conducting metal layer and is positioned on the whole inner peripheral wall of the power converter cover body facing the accommodating space.
2. The power converter cover of claim 1, wherein said bonding surface is a metal plating layer plated on said thermally conductive metal layer.
3. The cover of claim 1, wherein the heat conductive metal layer is coated with a metal coating on the bonding surface of one side of the receiving space and the opposite side.
4. A power converter cover according to claim 2 or 3, wherein the thermally conductive metal layer is made of pure copper or copper alloy, the metal plating layer is a nickel plating layer or a tin plating layer, and the insulating layer is made of polyimide, thermoplastic polyimide or polyethylene terephthalate.
5. The power converter cover according to claim 4, wherein the thickness of the heat conductive metal layer is 0.3mm to 0.5mm, the thickness of the metal plating layer is 3 μm to 6 μm, and the thickness of the insulating layer is 25 μm to 150 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320004779.9U CN219628059U (en) | 2023-01-03 | 2023-01-03 | Power converter cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320004779.9U CN219628059U (en) | 2023-01-03 | 2023-01-03 | Power converter cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219628059U true CN219628059U (en) | 2023-09-01 |
Family
ID=87793532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320004779.9U Active CN219628059U (en) | 2023-01-03 | 2023-01-03 | Power converter cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219628059U (en) |
-
2023
- 2023-01-03 CN CN202320004779.9U patent/CN219628059U/en active Active
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