Cavity filter with heat dissipation structure

Abstract

A cavity filter with a heat dissipation structure comprises a cavity filter, a heat conduction device and a heat dissipation device. The heat conduction device comprises a plurality of heat conduction plates and a plurality of heat pipes; the plurality of heat conducting plates are arranged on each side surface of the cavity filter; one end of each heat pipe is connected to the heat conducting plate; the heat dissipation device comprises a vapor chamber, a plurality of heat dissipation fins and a plurality of heat dissipation fans; the vapor chamber is arranged at the bottom of the cavity filter; the plurality of radiating fins are arranged on the vapor chamber and are arranged in parallel; the other end of the heat pipe penetrates through the radiating fins and is used for uniformly transferring heat of the heat conducting plate to each radiating fin; the cooling fan is arranged on one side of the cooling fins, and the wind direction of the cooling fan is parallel to the cooling fins. The problems that a cavity structure of a cavity filter is prone to heat accumulation, and an existing heat dissipation mode is poor in effect are solved.

Description

Technical Field

[0001] The utility model relates to the field of cavity filters, and in particular to a cavity filter with a heat dissipation structure. Background Art

[0002] The cavity filter is a microwave filter with a resonant cavity structure. Its main structure is usually a cavity cut from a metal body. Since the filter generates heat during operation, the design of the heat dissipation structure is crucial to ensure the stability and reliability of the filter performance. Traditional filter heat dissipation methods generally use various heat dissipation devices, such as fans or heat sinks, to directly dissipate the filter, but these methods often have poor heat dissipation effects. The cavity structure of the cavity filter easily leads to heat accumulation, which is not easy to dissipate. Therefore, a device is needed to first extract the accumulated heat and then dissipate it. Utility Model Content

[0003] The utility model aims to provide a cavity filter with a heat dissipation structure, which solves the problem that the cavity structure of the cavity filter is prone to heat accumulation and the existing heat dissipation method has poor effect.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] A cavity filter with a heat dissipation structure, comprising:

[0006] Cavity filter;

[0007] A heat conduction device, comprising a plurality of heat conduction plates and a plurality of heat pipes; the plurality of heat conduction plates are arranged on each side of the cavity filter; one end of the plurality of heat pipes is connected to the heat conduction plates;

[0008] The heat dissipation device comprises a heat spreader, a plurality of heat sinks and a plurality of heat dissipation fans; the heat spreader is arranged at the bottom of the cavity filter; a plurality of heat sinks are arranged on the heat spreader and are arranged parallel to each other; the other end of the heat pipe passes through the heat sink to evenly transfer the heat of the heat conduction plate to each of the heat sinks; the heat dissipation fan is arranged on one side of the heat sink, and its wind direction is parallel to the heat sink.

[0009] Thermal conductive silicone grease is provided between the heat conducting plate and the cavity filter.

[0010] Thermal conductive silicone grease is provided between the heat spreader and the cavity filter.

[0011] A protective cover is also provided, which is arranged below the cavity filter and wraps its sides and bottom, including vents and dust screens; the vents are arranged on two pairs of side surfaces of the protective cover and are located on one side of the cooling fan; the dust screen is arranged at the vents.

[0012] The heat conducting plate, the heat spreader and the heat sink are made of gold, copper or silver.

[0013] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0014] The utility model discloses a cavity filter with a heat dissipation structure. The filter body of the cavity filter is generally formed in one piece of metal. The heat generated by the cavity filter will accumulate on the filter body. The device utilizes multiple heat conduction plates distributed around the filter body to simultaneously extract the heat accumulated thereon from multiple directions, and evenly transfers it to multiple heat sinks through heat pipes, and then uses multiple fans to form an air duct, thereby enhancing air convection to discharge heat and avoiding the problem of heat accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is an example Figure 1 Schematic diagram of the overall internal structure of the middle protective cover;

[0017] Figure 3 This is an example Figure 1 Internal bottom view of the middle protective cover;

[0018] Figure 4 This is an example Figure 3 Enlarged view of point A in the middle.

[0019] In the figure, 1- cavity filter, 101- filter body, 201- heat conduction plate, 202- heat pipe, 3- heat dissipation device, 301- heat spreader, 302- heat sink, 4- cooling fan, 5- protective cover, 501- vent, 502- dust net. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1 and 2 As shown, a cavity filter 1 with a heat dissipation structure includes a filter body 101, 6 heat conducting plates 201, a plurality of heat pipes 202, a heat spreader 301, a plurality of heat sinks 302, 9 heat dissipation fans 4 and a protective cover 5; it should be noted that the cavity filter 1, the heat pipes 202 and the heat dissipation fans 4 are prior arts and are not improvements of this embodiment, and will not be described in detail here.

[0023] like Figure 2-4 As shown, six heat conducting plates 201 are respectively arranged on four sides of the filter body 101, and thermal grease is applied between the heat conducting plates 201 and the filter body 101; one end of a plurality of heat pipes 202 is connected to the heat conducting plates 201; the other end is arranged at the heat sink 302, and the heat pipes 202 vertically pass through the heat sink 302; a heat spreader 301 is arranged at the bottom of the filter body 101, and thermal grease is also applied therebetween; a plurality of heat sinks 302 are vertically arranged on the heat spreader 301, and are equidistant and parallel to each other, and are divided into two groups and arranged in parallel on both sides of the heat spreader 301; the air ducts of the nine cooling fans 4 are parallel to the heat sink 302, and are divided into three groups, which are respectively arranged on the two outer sides of the heat sink 302 and between the two groups of heat sinks 302;

[0024] Specifically, the heat conducting plate 201 , the heat spreader 301 and the heat sink 302 are made of copper.

[0025] like Figure 1 As shown, the protective cover 5 opens upward and wraps around the side and bottom of the filter body 101; ventilation holes 501 are provided on both sides of the protective cover 5, which are located at the cooling fans 4 on both sides of the heat sink 302 and perpendicular to its air duct; a dustproof net 502 is also provided at the ventilation hole 501.

[0026] The working principle of this embodiment is:

[0027] The utility model discloses a cavity filter 1 with a heat dissipation structure. When the cavity filter 1 is working, the cavity filter 1 generates heat and accumulates on its filter body 101. Then the heat is transferred to the heat conducting plates 201 on each side of the filter body 101. Then, the heat is transferred to the multiple heat sinks 302 through the heat pipes 202 passing through the multiple heat sinks 302. The heat spreader 301 simultaneously transfers the heat on the bottom surface of the filter body 101 to the multiple heat sinks 302. Finally, through the heat dissipation fans 4 next to the heat sinks 302, the air ducts of the multiple heat dissipation fans 4 are parallel to the heat sinks 302. The heat accumulated on the heat sinks 302 is brought out to the outside of the protective cover 5 along the vents 501.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cavity filter with a heat dissipation structure, characterized in that: include: Cavity filter; A heat conduction device, comprising a plurality of heat conduction plates and a plurality of heat pipes; the plurality of heat conduction plates are arranged on each side of the cavity filter; One end of a plurality of the heat pipes is connected to the heat conducting plate; The heat dissipation device comprises a heat spreader, a plurality of heat sinks and a plurality of heat dissipation fans; the heat spreader is arranged at the bottom of the cavity filter; a plurality of heat sinks are arranged on the heat spreader and are arranged parallel to each other; the other end of the heat pipe passes through the heat sink to evenly transfer the heat of the heat conduction plate to each of the heat sinks; the heat dissipation fan is arranged on one side of the heat sink, and its wind direction is parallel to the heat sink.

2. The cavity filter with a heat dissipation structure according to claim 1, characterized in that: Thermal conductive silicone grease is provided between the heat conducting plate and the cavity filter.

3. The cavity filter with a heat dissipation structure according to claim 1, characterized in that: Thermal conductive silicone grease is provided between the heat spreader and the cavity filter.

4. The cavity filter with a heat dissipation structure according to claim 1, characterized in that: A protective cover is also provided, which is arranged below the cavity filter and wraps its sides and bottom, including vents and dust screens; the vents are arranged on two pairs of side surfaces of the protective cover and are located on one side of the cooling fan; the dust screen is arranged at the vents.

5. The cavity filter with a heat dissipation structure according to claim 1, characterized in that: The heat conducting plate, the heat spreader and the heat sink are made of gold, copper or silver.

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