WO2017020624A1

WO2017020624A1 - Radio frequency remote unit, mounting part and radio frequency communication system

Info

Publication number: WO2017020624A1
Application number: PCT/CN2016/082247
Authority: WO
Inventors: 陈国强; 李寅谭
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-07-31
Filing date: 2016-05-16
Publication date: 2017-02-09
Also published as: CN106714504B; CN106714504A

Abstract

Disclosed are a radio frequency remote unit, a mounting part and a radio frequency communication system. The mounting part comprises a mounting seat and a first fixing part provided on the mounting seat, wherein the bottom face of the mounting seat is provided with a heat conduction face, and one or more outer surfaces, apart from the bottom face, on the mounting seat are auxiliary heat dissipation faces. The radio frequency remote unit comprises a radio frequency remote unit main casing and a second fixing part provided on the radio frequency remote unit main casing, wherein the top face of the radio frequency remote unit main casing is provided with a main heat dissipation face. The first fixing part cooperates with the second fixing part to fix the mounting seat on the top face of the radio frequency remote unit main casing, and the heat conduction face forms heat conduction cooperation with the main heat dissipation face to absorb heat dissipated by the main heat dissipation face and transfer same to the auxiliary heat dissipation faces for dissipation.

Description

Radio frequency remote unit, mounting member and radio frequency communication system

Technical field

The present application relates to, but is not limited to, the field of radio frequency communication, and in particular, to a radio remote unit, a mounting member, and a radio frequency communication system.

Background technique

In recent years, with the continuous development of wireless communication technology, the radio remote unit has been widely used in every field. At present, the heat dissipation method of the radio remote unit is not the same as the heat dissipation method of the chassis. The heat dissipation of the chassis generally requires the addition of a fan or other wind source device to achieve good heat dissipation. The radio remote unit uses only its outer surface as a heat dissipating surface for heat dissipation. However, with the continuous development of wireless communication technology, the radio remote unit is gradually developing in the direction of miniaturization and high integration. The highly integrated RF remote unit has a larger transmit power, resulting in more and more heat generated during its operation. After the RF remote unit is miniaturized, its effective heat dissipation area is greatly reduced; The heat generated inside the RF remote unit is difficult to spread in time, and the local hot spot problem of the device is increasingly prominent.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The main technical problem to be solved by the present application is to provide a radio frequency remote unit, a mounting component and a radio frequency communication system, which solves the problem that the related radio remote unit only uses its own outer surface to dissipate heat, and the heat generation amount is larger and larger, and the volume is larger. The smaller the case, the less effective cooling problem.

A mounting member for a radio remote unit, the mounting member comprising a mounting seat and a first fixing member disposed on the mounting seat, the bottom surface of the mounting seat is provided with a heat conducting surface, and the mounting seat is provided with the bottom surface One or more outer surfaces other than the auxiliary heat dissipating surface; the first fixing member cooperates with the second fixing member on the main housing of the radio frequency remote unit, and the mounting seat is fixed to the main housing of the radio frequency remote unit a heat conduction surface of the top surface of the main body of the radio frequency remote unit is thermally conductively coupled to the main heat dissipating surface of the radio frequency remote unit, and the heat dissipated from the main heat dissipating surface is absorbed and transmitted to the auxiliary heat dissipating surface .

Optionally, the top surface of the mounting seat is an auxiliary heat dissipating surface, or the mounting seat is apart from the bottom surface All other outer surfaces are auxiliary cooling surfaces.

Optionally, the top surface of the mount is provided with one or more heat dissipating fins.

Optionally, the heat conduction coordination means that the heat conduction surface is in contact with a main heat dissipation surface, and the heat conduction surface absorbs heat from the main heat dissipation surface.

Optionally, the mounting member further includes a heat conducting layer disposed between the heat conducting surface and the main heat radiating surface, and respectively contacting the heat conducting surface and the main heat radiating surface, wherein the heat conduction matching means The heat conducting layer absorbs heat radiated from the main heat dissipating surface and transmits the heat to the heat conducting surface.

Optionally, the heat conductive layer is a thermal conductive adhesive layer or a thermal conductive silicone layer.

A radio remote unit includes a main housing of the radio remote unit and a second fixing member disposed on the main housing of the radio remote unit, and the main surface of the main housing of the radio remote unit is provided with main heat dissipation The second fixing member cooperates with the first fixing member on the mounting seat of the mounting member, and fixes the mounting seat on the top surface of the main casing of the radio frequency remote unit, the main heat dissipating surface and the mounting seat The thermally conductive surface on the bottom surface forms a thermally conductive fit that transfers heat generated within the main housing of the RF remote unit to the thermally conductive surface.

A radio frequency communication system includes a radio remote unit and a mounting member, the mounting member includes a mounting seat and a first fixing member disposed on the mounting seat, and a bottom surface of the mounting seat is provided with a heat conducting surface, the mounting seat One or more outer surfaces other than the bottom surface are auxiliary heat dissipating surfaces; the radio remote unit includes a radio remote unit main housing and a second fixing member disposed on the main housing of the radio remote unit The main surface of the main body of the radio frequency remote unit is provided with a main heat dissipating surface; the first fixing member cooperates with the second fixing member, and the mounting seat is fixed on the top of the main housing of the radio frequency remote unit The heat conducting surface forms a heat conduction engagement with the main heat dissipating surface, and the heat radiated from the main heat dissipating surface is absorbed and transmitted to the auxiliary heat dissipating surface to be dissipated.

Optionally, the radio frequency communication system further includes a sealing member disposed around the heat conducting surface of the bottom surface of the mounting base or disposed around a main heat dissipating surface of the top surface of the main housing of the radio frequency remote unit.

Optionally, the seal comprises an annular groove disposed around the main heat dissipation surface or the heat transfer surface, and a sealing gasket disposed in the annular groove.

The beneficial effects of the invention are:

Embodiments of the present invention provide a radio remote unit, a mounting member, and a radio frequency communication system, the mounting member The utility model is used for fixedly mounting a radio remote unit to a work site, for example, to a pole or a wall surface of a work site; the mounting member comprises a mounting seat and a first fixing member disposed on the mounting seat, and the bottom surface of the mounting seat is provided with a heat conducting surface One or more outer surfaces of the mounting seat other than the bottom surface are auxiliary heat dissipating surfaces; the radio remote unit includes a radio remote unit main housing and a second fixing disposed on the main housing of the radio remote unit The main heat dissipating surface is provided on the top surface of the main casing of the radio remote unit; when the first fixing member and the second fixing member are matched, the mounting seat can be fixed on the top surface of the main casing of the radio frequency remote unit to complete the mounting part. The heat conduction surface on the bottom surface of the mounting base forms a heat conduction coordination with the main heat dissipation surface on the main casing of the remote radio unit, and the RF remote unit is generated in the main housing and is discharged through the main heat dissipation surface. The heat is absorbed and passed to the auxiliary heat sink surface to dissipate. In the embodiment of the invention, the main heat dissipating surface is disposed on the top surface of the main casing of the radio frequency remote unit, and the corresponding heat conducting surface is disposed on the bottom surface of the mounting member mounting seat, so that the heat generated in the main casing of the radio frequency remote unit is transmitted through the main heat dissipating surface. The heat-dissipating surface on the mounting member is dissipated by the mounting member, and the heat-relaxing unit of the present invention does not rely on the radio-radiation unit itself for heat dissipation. It can better meet the development requirements of miniaturization and high integration of the RF remote unit, and does not require any additional accessories, which can reduce the cost to a certain extent.

BRIEF abstract

1 is a side view of a mounting member of a radio remote unit according to an embodiment of the present invention;

2 is a schematic structural diagram of a bottom surface of a mounting member of a radio remote unit according to an embodiment of the present invention;

3 is a schematic structural diagram of a main housing of a radio remote unit according to an embodiment of the present invention;

4 is a side view of a main housing of a radio remote unit according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a radio frequency communication system according to an embodiment of the present disclosure;

6 is a cross-sectional view showing the connection structure of the main casing and the mounting member of the radio remote unit of FIG. 5.

Embodiments of the invention

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In order to meet the miniaturization and high integration heat dissipation requirement of the radio remote unit, the embodiment uses the mounting component of the radio remote unit as an auxiliary heat sink of the radio remote unit, and the radio remote unit The heat generated by the remote radio unit is radiated in parallel; the relative heat dissipation effect is better when the radio remote unit itself completes the heat dissipation. Moreover, the mounting member in this embodiment is a related accessory in the radio frequency communication system, and does not increase the cost, and also reduces the cost to some extent. The function of the relevant mounting member is only to fix the radio frequency remote unit to the pole or wall surface of the work site, and the radio remote unit is generally fixed by bolts; since the relevant radio remote unit needs to dissipate heat through its own surface, In order not to affect the heat dissipation effect of the remote radio unit, the relevant mounting parts should be as close as possible to the direct contact with the radio remote unit or minimize the area of direct contact between the two. In this embodiment, the mounting member is also used as a part of the heat dissipation of the radio remote unit, and the main heat dissipating surface is disposed on the top surface of the main housing by the radio frequency, and the corresponding heat conducting surface is disposed on the bottom surface of the mounting member mounting seat, thereby RF The heat generated in the main housing is transferred to the heat conducting surface on the mounting member through the main heat dissipating surface, and the heat is simultaneously dissipated by both the mounting member and the radio remote unit.

It should be understood that the position, the size, and the number of the main heat dissipating surface and the heat conducting surface in the embodiment may be flexibly changed according to different structures and application scenarios, as long as the heat dissipation principle is to use the radio remote unit. The upper main heat dissipating surface conducts the heat generated inside the radio frequency remote unit to the heat conducting surface on the mounting member and is dissipated through the mounting member within the scope of the embodiment of the present invention. In addition, in order to achieve heat dissipation, the material between the heat conducting surface and the auxiliary heat dissipating surface is preferably a material with better thermal conductivity, and at the same time, in order to ensure the reliability of the connection, a metal material with good thermal conductivity, such as aluminum alloy and copper, may be selected. and many more. For ease of understanding, the present invention is exemplarily described below with reference to the accompanying drawings.

The mounting member shown in FIG. 1-2 includes a mounting base 2 including a bottom surface 21 and a top surface 22 opposite to the bottom surface 21, and the bottom surface 21 is when the mounting base 2 is fixed on the main housing of the radio frequency remote unit. The opposite side of the top surface of the main casing of the radio remote unit, that is, the surface closest to the top surface of the main casing of the radio remote unit. The bottom surface 21 is provided with a heat conducting surface 211. The number, position and area of the heat conducting surface 211 can be flexibly selected according to requirements. As shown in FIG. 2, the heat conducting surface 211 is provided with two, which are symmetrically disposed on the left and right sides of the bottom surface 21, respectively. In addition to the setting example shown in FIG. 2, the number of heat conducting faces in the embodiment may be set to one or more; for example, only one side or the middle of the bottom face 21 is provided, or the entire bottom face 21 is directly provided. The heat transfer surface is directly disposed; or one or more heat transfer surfaces 211 are respectively disposed around the bottom surface 21.

The mounting seat 2 in this embodiment is further provided for finally dissipating heat from the heat conducting surface 211. The auxiliary heat dissipating surface may be any one or more outer surfaces except the bottom surface 21 of the mounting seat 2; for example, only the top surface 22 of the mounting base 2 may be provided as an auxiliary heat dissipating surface, or may be directly installed. The outer surface of the seat 2 except the bottom surface 21 is an auxiliary heat dissipating surface. It should be understood that the material between the heat conducting surface 211 and the auxiliary heat dissipating surface is any one or more materials having good thermal conductivity; for example, when the outer surface of the mounting seat 2 except the bottom surface 21 is an auxiliary heat dissipating surface The mount 2 as a whole can be directly made of a material having good thermal conductivity, such as an aluminum alloy material.

In order to improve the heat dissipation effect of the mount 2, one or more heat dissipating fins for lifting the heat dissipating area may be added to one or more auxiliary heat dissipating surfaces in this embodiment; the example structure shown in FIGS. 1 and 2 is A plurality of heat dissipating fins 221 are added to the top surface 22. The shape and number of the heat dissipating fins 221 are not limited.

The mounting member further includes a first fixing member disposed on the mounting base 2 for fixing the mounting base 2 and the RF remote unit main housing together, and the position and number of the first fixing connecting member disposed on the mounting seat 2 And the structural form can be flexibly selected according to the application scenario; for example, a first fixing member can be disposed on the upper and lower sides or the left and right sides of the mounting seat, and the first fixing member can be a snapping structure or a plug structure; As shown in FIG. 2, the first fixing member shown in the figure is a structure fixedly connected by bolts, and has four, symmetrically disposed on the mounting base 2, including the screw hole 211 shown in FIG. 2 and The bolt corresponding to the screw hole 211 (not shown in the bolt figure); it should be understood that the screw hole 211 is disposed on the bottom surface 21 in the region of the heat conducting surface 211 or outside the region of the heat conducting surface 211. As shown in FIG. 2, the mounting base 2 further includes a third fixing member 222 for fixing the mounting seat 2 to the working pole, the wall surface and the like. The third fixing member 222 is not shown in FIG. In addition to the structure of the card slot (slot), the fixed connection with the pole and the wall surface can also be realized by means of a screw hole or a hook.

As shown in FIG. 3-4, the remote radio unit of the present embodiment includes a main body 1 of the radio remote unit, and the main heat dissipating surface 111 is disposed on the top surface 11 of the main housing 1 of the radio frequency remote unit. The heat transfer surface 211 shown in 1-2 corresponds to the number, position, and area of the main heat dissipation surface 111, and can be flexibly selected according to requirements. For example, as shown in FIG. 3, the heat dissipation surface 111 corresponds to the heat conduction surface 211 shown in FIG. There are two settings and are symmetrically arranged on the top of the top surface 11. The second housing of the RF remote unit is further provided with a second fixing member for fixing the mounting base 2 and the RF remote unit main housing 1 together, and the second fixing member and the first fixing member on the mounting seat 2 The location, number, and structure correspond. For example the second shown in Figure 3. The fixing member is a screw hole 112 corresponding to the four screw holes 212 included in the first fixing member shown in FIG. 2 .

In order to ensure that the heat-receiving surface 211 and the main heat-dissipating surface 111 are not damaged by environmental factors such as water and dust, the heat-conducting effect is affected between the heat-receiving surface 211 and the main heat-dissipating surface 111, and the heat-conducting effect is affected in this embodiment. The sealing member for protecting the heat conducting surface 211 and the main heat dissipating surface 111; it should be understood that the sealing member may be disposed around the main heat dissipating surface 111 on the top surface of the main housing of the radio frequency remote unit, or may be disposed on the bottom surface of the mounting base 2 Around the heat transfer surface 211. The following is exemplified by being disposed on the main housing 1 of the radio remote unit. Referring to FIG. 3, a sealing member 113 is disposed around the main heat dissipating surface 111. The sealing member 113 includes an annular groove disposed around the main heat dissipating surface 111, and a sealing gasket fixedly disposed in the annular groove; the sealing gasket The heat conducting surface 211 can be thermally insulated from the main heat dissipating surface 111 and then isolated from the outside to achieve alignment protection.

Referring to FIG. 5-6, the figure is a structural diagram of the mounting base 2 fixed on the main housing 1 of the radio remote unit in the embodiment; the mounting base 2 and the main housing 1 of the radio remote unit are bolted, The screw holes 212 and the screw holes 112 are fixedly coupled together. At this time, the heat conducting surface 211 on the bottom surface 21 of the mounting base 2 forms a heat conduction coordination with the main heat radiating surface 111 on the top surface 11 of the main body housing 1 of the radio frequency remote unit. At this time, the heat conducting surface 211 is preferably in direct contact with the main heat dissipating surface 111 to form heat conduction at the fastest time. At this time, the heat conducting surface 211 directly absorbs heat from the main heat dissipating surface 111; of course, according to the application scenario, the two may not be directly contacted. As long as heat conduction can be formed between the two; for example, a heat conducting layer can be disposed between the two, and the heat conducting layer is disposed between the heat conducting surface 211 and the main heat radiating surface 111 and is in contact with the heat conducting surface 211 and the main heat radiating surface 111, respectively. At this time, the heat conduction layer directly absorbs the heat generated by the main heat dissipation surface 111 and directly transmits the heat to the heat conduction surface 211. The main function of the heat conduction layer in this embodiment is to ensure that the heat conduction surface 211 and the main heat dissipation surface 111 can form heat conduction as much as possible. Effective area. Referring to FIG. 6, the heat conducting layer 3 is disposed between the heat conducting surface 211 and the main heat dissipating surface 111, and is in contact with the heat conducting surface 211 and the main heat dissipating surface 111, respectively, and the heat conducting layer 3 directly absorbs the main heat dissipating surface 111. The heat is directly transmitted to the heat conducting surface 211; alternatively, the heat conductive layer 3 may be a heat dissipating material such as a thermal conductive adhesive layer or a thermal conductive silicone layer which can be coated on the mounting seat 2.

Meanwhile, as shown in FIG. 6, in order to make the heat conducting surface 211 more closely contact with the main heat dissipating surface 111, the shape and size of the heat conducting surface 211 are matched with the shape and size of the main heat dissipating surface 111; alternatively, the main heat dissipating The surface 111 is a concave surface, and the corresponding heat conduction surface 211 is a convex surface or a plane; or the main dispersion The hot surface 111 is a convex surface, and the corresponding heat conducting surface 211 is a concave surface or a flat surface.

In summary, in the embodiment of the present invention, the main heat dissipation surface 111 is disposed on the top surface 11 of the main casing 1 of the remote radio unit, and the corresponding heat conduction surface 211 is disposed on the bottom surface 21 of the mounting member mount 2, thereby pulling the main unit of the radio frequency remote unit. The heat generated in the body 1 is transmitted to the heat conducting surface 211 on the mounting member through the main heat dissipating surface 111, and the heat is dissipated by the mounting member, and the related radio remote unit does not rely on the radio frequency remote unit itself for heat dissipation. As a part of heat dissipation, the mounting part has better heat dissipation effect, better meets the requirements of miniaturization and high integration of the RF remote unit, and does not require any additional accessories, and can also reduce the cost to a certain extent.

The above is a detailed description of the embodiments of the present invention in connection with the embodiments, and the embodiments of the present invention are not limited to the description. For a person skilled in the art to which the present invention pertains, a number of simple derivations or substitutions may be made without departing from the spirit and scope of the invention.

Industrial applicability

In the embodiment of the invention, the main heat dissipating surface is disposed on the top surface of the main casing of the radio frequency remote unit, and the corresponding heat conducting surface is disposed on the bottom surface of the mounting member mounting seat, so that the heat generated in the main casing of the radio frequency remote unit is transmitted through the main heat dissipating surface. The heat-dissipating surface on the mounting member is further cooled by the mounting member, and the related RF remote unit does not rely on the radio remote unit to dissipate heat, but the mounting member is used as a part of the heat dissipation, so that the heat dissipation effect is better. It can better meet the development requirements of miniaturization and high integration of the RF remote unit, and does not require any additional accessories, and can reduce the cost to a certain extent.

Claims

A mounting member for a radio remote unit, the mounting member comprising a mounting seat and a first fixing member disposed on the mounting seat, the bottom surface of the mounting seat is provided with a heat conducting surface, and the mounting seat is provided with the bottom surface One or more outer surfaces other than the auxiliary heat dissipating surface; the first fixing member cooperates with the second fixing member on the main housing of the radio frequency remote unit, and the mounting seat is fixed to the main housing of the radio frequency remote unit a heat conduction surface of the top surface of the main body of the radio frequency remote unit is thermally conductively coupled to the main heat dissipating surface of the radio frequency remote unit, and the heat dissipated from the main heat dissipating surface is absorbed and transmitted to the auxiliary heat dissipating surface .
The mounting member according to claim 1, wherein a top surface of the mounting seat is an auxiliary heat dissipating surface, or all other outer surfaces of the mounting base except the bottom surface are auxiliary heat dissipating surfaces.
The mounting of the radio remote unit of claim 2, wherein the top surface of the mount is provided with one or more heat dissipating fins.
The mounting member of the radio remote unit according to any one of claims 1 to 3, wherein the heat conduction mating means that the heat conducting surface is in contact with the main heat radiating surface, and the heat conducting surface is from the main heat radiating surface Absorb heat.
The mounting member of the radio remote unit according to any one of claims 1 to 3, further comprising a heat conducting layer disposed between the heat conducting surface and the main heat radiating surface and respectively associated with the heat conducting surface In contact with the main heat dissipating surface, the heat conduction layer means that the heat conducting layer absorbs heat emitted by the main heat dissipating surface and transmits the heat to the heat conducting surface.
The mounting of the radio remote unit according to claim 5, wherein the heat conducting layer is a thermal conductive adhesive layer or a thermal conductive silicone layer.
A radio remote unit includes a main housing of the radio remote unit and a second fixing member disposed on the main housing of the radio remote unit, and the main surface of the main housing of the radio remote unit is provided with main heat dissipation The second fixing member cooperates with the first fixing member on the mounting seat of the mounting member, and fixes the mounting seat on the top surface of the main casing of the radio frequency remote unit, the main heat dissipating surface and the mounting seat The heat conducting surface on the bottom surface forms a heat conduction fit to transfer heat generated in the main body of the radio frequency remote unit to the heat conduction surface.
A radio frequency communication system includes a radio remote unit and a mounting member, the mounting member includes a mounting seat and a first fixing member disposed on the mounting seat, and a bottom surface of the mounting seat is provided with a heat conducting surface, the mounting seat One or more outer surfaces other than the bottom surface are auxiliary heat dissipating surfaces; the radio remote unit includes a radio remote unit main housing and a second fixing member disposed on the main housing of the radio remote unit The main surface of the main body of the radio frequency remote unit is provided with a main heat dissipating surface; the first fixing member cooperates with the second fixing member, and the mounting seat is fixed on the top of the main housing of the radio frequency remote unit The heat conducting surface forms a heat conduction engagement with the main heat dissipating surface, and the heat radiated from the main heat dissipating surface is absorbed and transmitted to the auxiliary heat dissipating surface to be dissipated.
A radio frequency communication system according to claim 8, further comprising a sealing member disposed around a heat conducting surface of the bottom surface of the mounting base or a main heat dissipating surface disposed on a top surface of the main housing of the radio remote unit around.
A radio frequency communication system according to claim 9, wherein said seal member comprises an annular groove provided around said main heat dissipating surface or said heat conducting surface, and a sealing gasket disposed in said annular groove.