A novel capacitor casing

Abstract

This utility model discloses a novel capacitor housing in the field of electronic component manufacturing technology, comprising a housing body, a spiral heat dissipation fin fixedly mounted on the outer surface of the housing body, a heat pipe fixedly passing through the surface of the spiral heat dissipation fin, the heat pipe extending to the inner side of the housing body and having a heat dissipation base fixedly mounted at its end, an inner core package disposed on the inner side of the housing body, the heat dissipation base being in close contact with the surface of the inner core package, a copper foil layer disposed on the inner surface of the housing body, a nanocrystalline ribbon layer disposed in the middle layer of the housing body, and a conductive paint layer disposed on the outer surface of the housing body. The heat dissipation base can absorb the heat generated on the surface of the inner core package, while the annularly arranged heat pipe can transfer heat to the spiral heat dissipation fin outside the housing body, thereby achieving the effect of cooling the heat pipe and improving the heat dissipation performance of the housing body.

Description

Technical Field

[0001] This utility model belongs to the field of electronic component manufacturing technology, specifically relating to a novel capacitor housing. Background Technology

[0002] Capacitors are among the most widely used components in electronic devices. With the rapid development of electronic information technology and the increasingly fast pace of digital electronic product upgrades, the production and sales of consumer electronics products, mainly flat-screen TVs, laptops, and digital cameras, have continued to grow, driving the growth of the capacitor industry. The capacitor casing is the external protective structure used to encapsulate capacitor components. It is usually made of metal or non-metal materials and serves to support, protect internal components, and dissipate heat. Due to the special nature of the capacitor casing as an energy storage component, its processing technology and processing cycle are very demanding.

[0003] Most existing capacitors use aluminum electrolytic capacitor casings, which leads to problems such as simple heat dissipation structure (thermal resistance > 8℃ / W), poor temperature resistance of sealing materials (rubber parts life < 1500h@105℃), and insufficient electromagnetic shielding (SE < 35dB), thus reducing their performance. To address this, we propose a new type of capacitor casing. Utility Model Content

[0004] The purpose of this invention is to provide a novel capacitor housing to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel capacitor housing, comprising a housing body, wherein a spiral heat dissipation fin is fixedly mounted on the outer surface of the housing body, a heat pipe is fixedly inserted through the surface of the spiral heat dissipation fin, the heat pipe extends to the inner side of the housing body and a heat dissipation base is fixedly mounted at its end, an inner core package is provided on the inner side of the housing body, and the heat dissipation base and the surface of the inner core package are in close contact.

[0006] Preferably, the inner surface of the outer shell body is provided with a copper foil layer, the middle layer of the outer shell body is provided with a nanocrystalline ribbon layer, and the outer surface of the outer shell body is provided with a conductive paint layer.

[0007] Preferably, multiple sets of heat pipes and heat dissipation bases are provided, and the heat pipes are arranged in a ring between the spiral heat dissipation fins and the outer shell body.

[0008] Preferably, a thermally conductive silicone grease layer is filled between the heat dissipation base and the inner core package.

[0009] Preferably, a sealing cover is installed on the top of the outer casing, and the sealing cover and the outer casing are sealed together by a sealing ring.

[0010] Preferably, an explosion-proof valve is installed in the middle of the top surface of the sealing cover, and screws are provided on both sides of the explosion-proof valve.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The heat dissipation base can absorb the heat generated on the surface of the inner core, while the annular heat pipe can transfer the heat to the spiral heat dissipation fins on the outside of the outer shell, thereby achieving the effect of cooling the heat pipe and improving the heat dissipation performance of the outer shell.

[0013] 2. The electromagnetic shielding effect of the outer shell is improved by setting a three-layer composite shielding layer consisting of a copper foil layer, a nanocrystalline ribbon layer, and a conductive paint layer. Attached Figure Description

[0014] Figure 1 This is a front structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the outer shell of this utility model.

[0018] In the diagram: 1. Outer shell; 101. Copper foil layer; 102. Nanocrystalline ribbon layer; 103. Conductive paint layer; 2. Spiral heat dissipation fins; 3. Heat pipe; 4. Heat dissipation base; 5. Thermal grease layer; 6. Inner core package; 7. Sealing cap; 8. Sealing ring; 9. Explosion-proof valve; 10. Screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a novel capacitor shell, including a shell body 1, a spiral heat dissipation fin 2 fixedly mounted on the outer surface of the shell body 1, a heat pipe 3 fixedly passing through the surface of the spiral heat dissipation fin 2, the heat pipe 3 extending to the inner side of the shell body 1, and a heat dissipation base 4 fixedly mounted at the end, an inner core package 6 provided on the inner side of the shell body 1, and the surfaces of the heat dissipation base 4 and the inner core package 6 are in close contact.

[0021] Specifically, a copper foil layer 101 is provided on the inner surface of the outer shell body 1, a nanocrystalline ribbon layer 102 is provided in the middle layer of the outer shell body 1, and a conductive paint layer 103 is provided on the outer surface of the outer shell body 1.

[0022] Specifically, multiple sets of heat pipes 3 and heat sink base 4 are provided, and the heat pipes 3 are arranged in a ring between the spiral heat sink fins 2 and the outer shell body 1.

[0023] Specifically, a thermally conductive silicone grease layer 5 is filled between the heat sink base 4 and the inner core package 6.

[0024] Specifically, a sealing cover 7 is installed on the top of the outer casing 1, and the sealing cover 7 and the outer casing 1 are sealed together by a sealing ring 8.

[0025] Specifically, an explosion-proof valve 9 is installed in the middle of the top surface of the sealing cover 7, and screws 10 are provided on both sides of the explosion-proof valve 9.

[0026] In this embodiment, the heat dissipation base 4 absorbs the heat generated on the surface of the inner core 6, and the multiple sets of heat pipes 3 arranged in a ring transfer the heat to the spiral heat dissipation fins 2 on the outside of the outer shell 1, thereby achieving the effect of cooling the heat pipes 3. This process is repeated to continuously absorb the heat generated inside the outer shell 1, thereby improving the heat dissipation performance of the outer shell 1. The sealing ring 8 adopts a metal-ceramic composite sealing interface, and the difference in thermal expansion coefficient is controlled within 1×10. -6 Within a temperature range of / ℃, the three-layer shielding structure consisting of a copper foil layer 101, a nanocrystalline ribbon layer 102, and a conductive paint layer 103 achieves SE > 65dB in the 10MHz-1GHz frequency band.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel capacitor casing, comprising a casing body (1), characterized in that: A spiral heat dissipation fin (2) is fixedly mounted on the outer surface of the outer shell body (1). A heat pipe (3) is fixedly inserted through the surface of the spiral heat dissipation fin (2). The heat pipe (3) extends to the inner side of the outer shell body (1) and a heat dissipation base (4) is fixedly mounted at its end. An inner core package (6) is provided on the inner side of the outer shell body (1). The surfaces of the heat dissipation base (4) and the inner core package (6) are in close contact.

2. The novel capacitor casing according to claim 1, characterized in that: The inner surface of the outer shell body (1) is provided with a copper foil layer (101), the middle layer of the outer shell body (1) is provided with a nanocrystalline ribbon layer (102), and the outer surface of the outer shell body (1) is provided with a conductive paint layer (103).

3. The novel capacitor casing according to claim 1, characterized in that: Multiple sets of heat pipes (3) and heat dissipation base (4) are provided, and the heat pipes (3) are connected in a ring between the spiral heat dissipation fins (2) and the outer shell body (1).

4. The novel capacitor casing according to claim 1, characterized in that: A thermally conductive silicone grease layer (5) is provided between the heat dissipation base (4) and the inner core (6).

5. A novel capacitor housing according to claim 1, characterized in that: A sealing cover (7) is installed on the top of the outer shell body (1), and the sealing cover (7) and the outer shell body (1) are sealed together by a sealing ring (8).

6. A novel capacitor casing according to claim 5, characterized in that: An explosion-proof valve (9) is installed in the middle of the top surface of the sealing cover (7), and screws (10) are provided on both sides of the explosion-proof valve (9).

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