CN212908004U

CN212908004U - Cavity filter with heat dissipation structure

Info

Publication number: CN212908004U
Application number: CN202022284288.3U
Authority: CN
Inventors: 何祥勇; 王平; 王一凡; 舒剑龙
Original assignee: Jiangxi Yichuang New Materials Co ltd
Current assignee: Jiangxi Yichuang New Materials Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-04-06
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a take heat radiation structure's cavity filter, which comprises a base, base top fixedly connected with filter element, filter element outside joint has the cold flow pipe, cold flow pipe and filter element phase-match, the base top is equipped with the shell body, shell body and base phase-match, the shell body passes through screw fixed connection with the base, shell body one side fixedly connected with inlet tube, inlet tube one end runs through shell body one side, inlet tube one end is linked together with cold flow pipe input end, inlet tube one side is equipped with the outlet pipe. The utility model discloses a coolant liquid circulative cooling in the cold flow pipe carries out rapid cooling to the filter element to ensure the normal work of wave filter, in the cooling fan passes through the ventilating board simultaneously with the leading-in wave filter cavity of external fresh air, thereby blow off the bar louvre of the steam through the shell body both sides in the wave filter cavity, in order to realize the whole cooling to the wave filter.

Description

Cavity filter with heat dissipation structure

Technical Field

The utility model relates to a wave filter technical field, concretely relates to take heat radiation structure's cavity filter.

Background

Filters are widely used in the field of communications, particularly radio frequency communications, as a frequency selective device. In a base station where a communication system performs signal transmission and reception, a filter is used to select a communication signal and filter out clutter or interference signals outside the frequency of the communication signal; the filter cavity is used as an important component of the cavity filter and has a non-negligible effect. Currently, in a mobile communication base station system, it is common to use a cavity filter for frequency selection of signals transmitted and received by an antenna. Because the accurate requirement to frequency selection and the wave filter itself have reasons such as temperature drift, the temperature in the cavity filter often need to be guaranteed not too high in the work, and cavity filter itself has certain operating power, consequently, in some radio frequency work units, like the radio frequency unit of zooming out, often use the cavity filter of taking heat radiation structure, the cavity filter of taking heat radiation structure makes the equipment of integration with cavity filter with heat radiation casing for satisfying the radiating needs of cavity filter itself, the method was done very early: the cavity filter is fixed on a heating panel by screws, the heating panel and the cavity filter can be simply combined by the method, but the air gap exists between the cavity filter and the heating panel in the connecting mode, so that the heat transfer effect is not ideal, and the heat dissipation effect cannot be basically achieved. Therefore, the current practice is: the cavity filter and the heat dissipation shell are processed by one metal material at one time, for example, a large aluminum ingot is processed into the cavity filter with the heat dissipation structure by a numerical control processing center, or the filter part and the heat dissipation part are integrally formed by die casting by a die casting process to form the cavity filter with the heat dissipation structure.

However, in practical use, most filters on the market only radiate heat generated by the filters during operation to the outside air through metal heat conduction, so that the heat radiation efficiency is low and the internal environment of the filters cannot be integrally cooled.

Therefore, it is necessary to provide a cavity filter with a heat dissipation structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take heat radiation structure's cavity filter to most wave filters on the market only send the heat that the wave filter during operation produced to the outside air through the heat-conduction of metal in the solution technique, the low problem that just can not carry out whole cooling to the wave filter internal environment of radiating efficiency.

In order to achieve the above object, the present invention provides the following technical solutions: a cavity filter with a heat dissipation structure comprises a base, wherein a filter element is fixedly connected to the top of the base, a cold flow pipe is clamped on the outer side of the filter element and matched with the filter element, an outer shell is arranged at the top of the base and matched with the base, the outer shell is fixedly connected with the base through screws, a water inlet pipe is fixedly connected to one side of the outer shell, one end of the water inlet pipe penetrates through one side of the outer shell, one end of the water inlet pipe is communicated with the cold flow pipe input end, a water outlet pipe is arranged on one side of the water inlet pipe and fixedly connected with one side of the outer shell, one end of the water outlet pipe penetrates through one side of the outer shell, one end of the water outlet pipe is communicated with the cold flow pipe output end, a fan placing frame is fixedly, the bottom of the ventilating plate is fixedly connected with a heat radiating fan.

Preferably, the filter element and the base are integrally arranged, two ends of the cold flow pipe are fixedly connected with the inner wall of the outer shell respectively, the cold flow pipe is made of metal copper, and cooling liquid is arranged in the cold flow pipe.

Preferably, the fan placing frame bottom is fixedly connected with a fixing rod, an extrusion spring is sleeved on the outer side of the fixing rod, one end of the extrusion spring is abutted to the fan placing frame bottom, and the other end of the extrusion spring is abutted to the top of the cold flow pipe.

Preferably, the bar-shaped heat dissipation holes are formed in two sides of the outer shell, shielding plates are fixedly connected to two sides of the outer shell and arranged at the tops of the bar-shaped heat dissipation holes, and the shielding plates are matched with the bar-shaped heat dissipation holes.

Preferably, one side of the outer shell is fixedly connected with a first line interface, the other side of the outer shell is fixedly connected with a second line interface, the first line interface is electrically connected with the input end of the filter element, and the second line interface is electrically connected with the output end of the filter element.

The base both sides all fixedly connected with fixed plate, the fixed orifices has been seted up at the fixed plate middle part, the fixed plate sets up with the base integration.

In the technical scheme, the utility model provides a technological effect and advantage:

the filter element is rapidly cooled through cooling liquid circulating cooling in the cold flow pipe so as to ensure normal work of the filter, and meanwhile, the heat dissipation fan introduces external fresh air into the filter cavity through the ventilation plate, so that hot air in the filter cavity is blown out through the strip-shaped heat dissipation holes in two sides of the outer shell, and the whole temperature of the filter is lowered.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a bottom view of the present invention;

fig. 5 is a schematic view of the structure of the cold flow pipe of the present invention.

Description of reference numerals:

the filter comprises a base 1, a filter element 2, a cold flow pipe 3, an outer shell 4, a water inlet pipe 5, a water outlet pipe 6, a fan placing frame 7, a ventilating plate 8, a heat dissipation fan 9, a fixing rod 10, an extrusion spring 11, a strip-shaped heat dissipation hole 12, a shielding plate 13, a first line interface 14, a second line interface 15, a fixing plate 16 and a fixing hole 17.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a cavity filter with a heat dissipation structure as shown in figures 1-5, which comprises a base 1, a filter element 2 is fixedly connected on the top of the base 1, a cold flow pipe 3 is clamped on the outer side of the filter element 2, the cold flow pipe 3 is matched with the filter element 2, an outer shell 4 is arranged on the top of the base 1, the outer shell 4 is matched with the base 1, the outer shell 4 is fixedly connected with the base 1 through screws, one side of the outer shell 4 is fixedly connected with a water inlet pipe 5, one end of the water inlet pipe 5 penetrates through one side of the outer shell 4, one end of the water inlet pipe 5 is communicated with the input end of the cold flow pipe 3, one side of the water inlet pipe 5 is provided with a water outlet pipe 6, the water outlet pipe 6 is fixedly connected with one side of the outer shell 4, one end, frame 7 is placed to 4 top fixedly connected with fans of shell body, 7 tops of frame are placed to the fan are through screw fixedly connected with ventilating board 8, 8 bottom fixedly connected with cooling fan 9 of ventilating board.

Further, in the above technical scheme, filter element 2 and base 1 integration set up, cold flow tube 3 both ends respectively with 4 inner wall fixed connection of shell body, cold flow tube 3 is made by metal copper, is favorable to improving heat conduction efficiency, be equipped with the coolant liquid in the cold flow tube 3.

Further, in above-mentioned technical scheme, frame 7 bottom fixedly connected with dead lever 10 is placed to the fan, extrusion spring 11 has been cup jointed in the dead lever 10 outside, 11 one end of extrusion spring is placed frame 7 bottoms with the fan and is offseted, the 11 other end of extrusion spring offsets with 3 tops of cold flow pipe, and extrusion spring 11 is provided with and does benefit to the joint stability that improves between cold flow pipe 3 and the wave filter component 2.

Further, in above-mentioned technical scheme, bar louvre 12 has all been seted up to shell body 4 both sides, the equal fixedly connected with shielding plate 13 in shell body 4 both sides, shielding plate 13 sets up in bar louvre 12 top, shielding plate 13 and bar louvre 12 phase-match, the setting of bar louvre 12 does benefit to the inside steam of filter cavity and outwards gives off, and shielding plate 13 is provided with the entering that does benefit to clothing dust and foreign matter.

Further, in the above technical solution, one side of the outer shell 4 is fixedly connected with a first line interface 14, the other side of the outer shell 4 is fixedly connected with a second line interface 15, the first line interface 14 is electrically connected with the input end of the filter element 2, and the second line interface 15 is electrically connected with the output end of the filter element 2.

Further, in the above technical scheme, fixed plates 16 are fixedly connected to both sides of the base 1, a fixed hole 17 is formed in the middle of each fixed plate 16, the fixed plates 16 and the base 1 are integrally arranged, and the filter is conveniently fixed by the fixed plates 16 and the fixed holes 17.

This practical theory of operation:

referring to the attached drawings 1-5 of the specification, when the filter starts to work, the filter element 2 gradually emits heat outwards, a part of heat is emitted to the outside air through the base 1 integrated with the filter element 2, most part of heat is still accumulated in the filter cavity, at this time, a cooling circulator is externally connected between the water inlet pipe 5 and the water outlet pipe 6, the cooling circulator drives cooling liquid to circularly flow in the cold flow pipe 3, the cold flow pipe 3 transfers the heat carried by the filter element 2 to the cooling liquid, the filter element 2 is rapidly cooled through the cooling liquid circulating cooling, so as to ensure the normal work of the filter, the cooling fan 9 is started while the cold flow pipe 3 cools the filter element 2, the cooling fan 9 guides outside fresh air into the filter cavity through the ventilation plate 8, so that the hot air in the filter cavity is blown out through the strip-shaped 12 on two sides of the outer shell 4, so as to realize the integral cooling of the filter.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a take heat radiation structure's cavity filter, includes base (1), its characterized in that: the filter element (2) is fixedly connected to the top of the base (1), the cold flow pipe (3) is connected to the outer side of the filter element (2) in a clamped mode, the cold flow pipe (3) is matched with the filter element (2), the outer shell (4) is arranged on the top of the base (1), the outer shell (4) is matched with the base (1), the outer shell (4) is fixedly connected with the base (1) through screws, the water inlet pipe (5) is fixedly connected to one side of the outer shell (4), one end of the water inlet pipe (5) penetrates through one side of the outer shell (4), one end of the water inlet pipe (5) is communicated with the input end of the cold flow pipe (3), the water outlet pipe (6) is arranged on one side of the water inlet pipe (5), the water outlet pipe (6) is fixedly connected with one side of the outer shell (4), one end of the water outlet pipe (6), frame (7) is placed to shell body (4) top fixedly connected with fan, screw fixedly connected with ventilating board (8) are passed through at frame (7) top is placed to the fan, ventilating board (8) bottom fixedly connected with cooling fan (9).

2. The cavity filter with the heat dissipation structure of claim 1, wherein: filter element (2) and base (1) integration set up, cold flow tube (3) both ends respectively with shell body (4) inner wall fixed connection, cold flow tube (3) are made by metal copper, be equipped with the coolant liquid in cold flow tube (3).

3. The cavity filter with the heat dissipation structure of claim 1, wherein: frame (7) bottom fixedly connected with dead lever (10) is placed to the fan, extrusion spring (11) have been cup jointed in the dead lever (10) outside, frame (7) bottom counterbalance is placed with the fan to extrusion spring (11) one end, the extrusion spring (11) other end offsets with cold flow pipe (3) top.

4. The cavity filter with the heat dissipation structure of claim 1, wherein: the heat dissipation device is characterized in that strip-shaped heat dissipation holes (12) are formed in two sides of the outer shell (4), shielding plates (13) are fixedly connected to two sides of the outer shell (4), the shielding plates (13) are arranged at the tops of the strip-shaped heat dissipation holes (12), and the shielding plates (13) are matched with the strip-shaped heat dissipation holes (12).

5. The cavity filter with the heat dissipation structure of claim 1, wherein: the filter is characterized in that a first line interface (14) is fixedly connected to one side of the outer shell (4), a second line interface (15) is fixedly connected to the other side of the outer shell (4), the first line interface (14) is electrically connected with an input end of the filter element (2), and the second line interface (15) is electrically connected with an output end of the filter element (2).

6. The cavity filter with the heat dissipation structure of claim 1, wherein: the base (1) both sides all fixedly connected with fixed plate (16), fixed orifices (17) have been seted up in fixed plate (16) middle part, fixed plate (16) and base (1) integration set up.