WO2020108515A1

WO2020108515A1 - Heat sink

Info

Publication number: WO2020108515A1
Application number: PCT/CN2019/121185
Authority: WO
Inventors: 郑伏惠; 杨鸿志; 凌于蓝; 何金亮
Original assignee: 华为技术有限公司
Priority date: 2018-11-30
Filing date: 2019-11-27
Publication date: 2020-06-04
Also published as: CN210112496U

Abstract

A heat sink, the heat sink comprises a substrate, a plurality of heat dissipation fins and two protective teeth sheets arranged at intervals which are mounted on the substrate, and the plurality of heat dissipation fins are arranged at intervals between the two protective teeth sheets. The substrate comprises a mounting surface, the mounting surface is provided with a first mounting seat corresponding to the plurality of heat dissipation fins one by one and two second mounting seats, each heat dissipation fin can be detachably mounted on the first mounting seat. Each protective teeth sheet comprises a body and a mounting end arranged at one side of the body, the two protective teeth sheets can be detachably mounted on the two second mounting seats respectively by means of the mounting end, and the height of the protective teeth sheets relative to the mounting surface is greater than that of the heat dissipation fins relative to the mounting surface.

Description

Radiator

This application requires the priority of the Chinese patent application submitted to the China Patent Office on November 30, 2018, with the application number 201822005171.X and the utility model name "a radiator", the entire content of which is incorporated by reference in this application .

Technical field

The utility model relates to the technical field of heat dissipation, in particular to a radiator.

Background technique

As the heat consumption of communication base stations is getting higher and higher, the chip power consumption is getting bigger and bigger, and the heat dissipation capacity of heat sinks is getting higher and higher. When the length and width of the heat sink module are unchanged, only by increasing the heat dissipation The height of the sheet is used to ensure the heat dissipation effect, and the existing radiator structure is limited by the molding process capability, and cannot be formed when the height of the heat dissipation teeth exceeds a certain level.

Utility model content

The utility model provides a radiator, which is not limited by the forming process and can guarantee the heat dissipation effect.

The utility model provides a heat sink. The heat sink comprises a base plate, a plurality of heat dissipation fins mounted on the base plate and two protection tooth plates arranged at intervals, and the plurality of heat dissipation fins are arranged at two intervals Said protection between the teeth. The base plate includes a mounting surface, and a first mounting base and two second mounting bases corresponding to the plurality of heat sinks are provided on the mounting surface, and each heat sink is detachably mounted on a On the first mounting base. Each of the protection teeth includes a body and a mounting end on one side of the body, and the two protection teeth are detachably mounted on the two second mounting seats through the mounting ends, respectively, and the The height of the protection tooth plate relative to the mounting surface is greater than the height of the heat radiation plate relative to the mounting surface, so as to protect the heat radiation plate. A plurality of the heat sinks have a uniform thickness, and the heat sinks and the protection teeth can be detached from the first mounting seat and the second mounting seat, respectively, so that the heat sinks and the protection teeth can be made separately It is formed and assembled with the substrate, and the height relative to the substrate is not limited by the molding process, thereby ensuring the heat dissipation effect.

Wherein, the first mounting base and the mounting surface are concavely provided with slots, the longitudinal direction of the slot is the same as that of the first mounting base, and the heat sink can be detachably mounted on Inside the slot.

Wherein, the slot is a sliding groove with an opening at one end, and one side of the heat sink extends perpendicularly to the thickness direction of the heat sink, and the slider is slidably installed from the open end of the sliding groove Into the sliding groove, the heat sink can be quickly installed on the first mounting seat and is easy to disassemble.

Wherein, the slot is a card slot, and one side of the heat sink is installed in the card slot by cold fitting, welding, or bonding, so that the heat sink is more firmly fixed in the card slot in.

Wherein, one side of the radiating fin is bent to extend to form a connecting end, and the connecting end is fixedly connected to the surface of the first mounting seat by pasting or screwing.

Wherein, the mounting end is formed by bending one side of the body, or the mounting end and the body are fixed to the body at an angle; the surface of the mounting end and the second mounting seat are pasted Or fixed connection by screw connection.

Wherein, the second mounting seat and the mounting surface are concavely provided with slide grooves, the length direction of the slide groove is the same as the length direction of the second mounting seat, and one side of the protection tooth plate A connecting block extends perpendicular to the thickness direction of the protection tooth plate, and the connecting block is slidably inserted into the sliding groove from one end of the second mounting seat. The protective tooth plate can be quickly installed on the second mounting seat and is easily disassembled.

Wherein, the heat sink includes a first surface, and a heat insulation groove is provided on the first surface extending in the length direction or width direction of the heat radiation plate, and the heat insulation groove divides the heat radiation plate into at least two regions, In order to isolate the problem of poor heat dissipation caused by the mutual influence of different heat dissipation areas.

Wherein, the heat sink includes a second surface opposite to the first surface, and further includes heat dissipation holes penetrating the first surface and the second surface, the heat dissipation holes increase the contact between heat and air Area accelerated heat dissipation.

Wherein, the surface of the second mounting base away from the first mounting base is flush with the side surface of the body relative to the heat sink, and a artistic slit is provided between the side surface and the second mounting base. The longitudinal direction of the American art sewing is the same as the longitudinal direction of the body.

Wherein, the first mounting base and the second mounting base are integrally formed with the substrate; or, the first mounting base and the second mounting base are welded, bonded or screwed on the substrate .

The heat sink includes a base plate, a plurality of heat dissipation fins mounted on the base plate, and two spaced-apart protection teeth. The plurality of heat dissipation fins are arranged between the two protection teeth. The heat sink is detachably mounted on one of the first mounting seats, and the two protection teeth are detachably mounted on the two second mounting seats through the mounting ends, respectively, so that the heat sink When the protective tooth plate is manufactured, it can be formed separately, and then assembled with the substrate, and the height relative to the substrate is not limited by the molding process, thereby ensuring the heat dissipation effect.

BRIEF DESCRIPTION

In order to explain the technical solution of the present invention more clearly, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can obtain other drawings as shown in these drawings without paying any creative work.

1 is an exploded schematic view of the structure of the radiator provided by the utility model;

2 is a schematic structural diagram of a substrate of a heat sink provided by the present invention;

3 is a front view of a schematic structural diagram of a radiator provided by the present invention;

4 is a partial enlarged view of the heat sink in FIG. 3;

5 is a schematic cross-sectional structural view of another embodiment of the heat sink and the first mounting seat of the heat sink provided by the present invention;

6 is a schematic structural view of the heat sink of the radiator provided by the present invention;

7 is a schematic diagram of a part of the installation of the radiator and related equipment provided by the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of them. example. Based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

Please refer to FIG. 1, a heat sink provided by the present invention, the heat sink includes a base plate 10, a plurality of heat dissipation fins 20 mounted on the base plate 10, and two spaced protection tooth plates 30, a plurality of The heat dissipation fins 20 are arranged between the two protection teeth 30 at intervals. The substrate 10 includes a mounting surface 11, and a first mounting base 12 and two second mounting bases 13 corresponding to the plurality of heat sinks 20 are provided on the mounting surface 11, each of the heat sinks 20 Removably mounted on one of the first mounting bases 12. Each of the protective tooth plates 30 includes a body 31 and a mounting end 32 located on one side of the body 31. The two protective tooth plates 30 are detachably mounted on the two second On the mounting seat 13, and the height of the protection tooth 30 relative to the mounting surface 11 is greater than the height of the heat sink 20 relative to the mounting surface 11, so that the protection tooth 30 functions as a protection heat sink 20 effect.

The heat dissipation fins 20 and the protective tooth fins 30 of the heat sink described in this application are detachable from the first mounting base 12 and the second mounting base 13, respectively, so that the heat radiating fins 20 and the protection tooth fins 30 are made Can be formed separately, and then assembled with the substrate 10, the height of the heat sink 20 and the protective teeth 30 relative to the substrate 10 is not limited by the molding process, so that the size of the heat sink 20 will not be affected The existence of the protection tooth 30 is limited to ensure the heat dissipation effect, and the heat dissipation fin 20 and the protection tooth 30 with different heights and the substrate 10 can be assembled into a new heat sink to make full use of the heat sink Devices to meet specific heat dissipation requirements.

In this embodiment, the cooling fins 20 are rectangular plates and each of the cooling fins 20 has a uniform thickness, and the protective tooth plate 30 is a rectangular plate with a thickness greater than that of the cooling fins 20, so that the The protective tooth plate 30 is more rigid, and can prevent the heat sink 20 from being deformed due to a collision and affecting the heat dissipation effect during transportation. Of course, the thickness of the protective tooth plate 30 may also be equal to the thickness of the heat sink 20.

Referring to FIG. 2 in combination, the substrate 10 is a rectangular plate. In this embodiment, the first mounting base 12 and the second mounting base 13 are integrally formed with the substrate 10. Both the first mounting base 12 and the second mounting base 13 are elongated protrusions, and the first mounting base 12 and the second mounting base 13 have the same length direction. A plurality of the first mounting seats 12 are arranged between the two second mounting seats 13 at intervals, and the width of the second mounting seat 13 is greater than the width of the first mounting seat 12 so that the second The holding teeth 30 of sufficient thickness can be fixed on the mounting seat 13 to protect the heat sink 20 from damage. In other embodiments, the first mounting base 12 and the second mounting base 13 may also be welded, bonded, or screwed to the substrate 10.

The substrate 10 further includes a bottom plate 14 that is integrally formed on a surface opposite to the mounting surface 11, the bottom plate 14 is a rectangular plate body, and the length and width of the bottom plate 14 are larger than the mounting surface 11 The size of the length and width of the spheres not only strengthens the heat sink, but also protects the heat sink 20 and the tooth 30. It can also be understood that the bottom plate 14 is a protrusion extending around the substrate 10.

Referring to FIG. 3 in combination, the first mounting base 12 and the mounting surface 11 face the same surface 121 with a recess 122 recessed therein. The length direction of the slot 122 and the length direction of the first mounting base 11 Similarly, the heat sink 20 can be detachably installed in the slot 122. In this embodiment, the slot 122 is a card slot, and the cross section of the card slot is concave. The heat sink 20 can be inserted into the slot 122 from directly above the mounting surface 11. The heat sink 20 The side of the mounting side is installed in the slot by means of cold fitting, welding or bonding, and the side where the heat sink 20 is assembled with the first mounting base 12 may be referred to as the mounting side 24. In one embodiment, both ends of the slot 122 are open, or both ends of the slot 122 are not open, or either end of the slot 122 is open. In this embodiment, the slot 122 is a bar-shaped slot with one end open, and the heat sink 20 is slidably installed in the slot 122 from the open end.

The thickness of the side of the heat sink 20 close to the mounting surface 11 is greater than the side of the heat sink 20 away from the mounting surface 11, so that the heat sink 20 can be more firmly fixed to the first installation Block 12.

In other embodiments, referring to FIG. 4, the mounting side 24 of the heat sink 20 is formed by bending one side of the heat sink 20 and pasting it on the surface of the heat sink 20 before inserting it into the slot 122 , To increase the installation stability of the slot 122 without using other welding and other fixing methods, so as to install the heat sink 20 on the first mounting base 12.

In the second embodiment, please refer to FIG. 5 in combination, the slot is a sliding groove 123 with an opening at one end, a slider 25 is protrudingly provided on one side of the heat sink 20, and the heat sink 20 passes through the slide The block 25 is slidably installed in the sliding groove 123 from the open end of the sliding groove 123. Specifically, the sliding groove 123 is provided with an opening at one end of the first mounting base 12. Of course, the sliding groove 123 is provided with openings at both ends of the first mounting base 12.

In this embodiment, the slider 25 has an inverted “T” structure, and both ends of the slider 25 extend perpendicular to the thickness direction of the heat sink 20. The slider 25 can be regarded as the mounting side of the heat sink 20 . The heat dissipation plate 20 is slid into the sliding groove 123 from one end of the first mounting base 12 through the slider 25, so that the heat dissipating fin 20 is mounted on the first mounting base 12. Of course, the slider 25 can be fixed in the sliding groove 123.

In other embodiments, the first mounting base 12 is not provided with a slot, and one side of the heat sink 20 is bent to extend to form a connection end connected to the surface of the heat sink 20 at an angle. The surface 121 of the first mounting base 12 is fixedly connected by welding, pasting or screwing.

In other embodiments, the surface 121 may not be provided with a slot 122, and one side of the heat sink 20 and the surface 121 are fixedly connected by welding, bonding, or screwing.

Referring to FIG. 6 in combination, the heat sink 20 includes a first surface 21, a second surface (not shown) disposed opposite to the first surface 21, and a surface penetrating the first surface 21 and the second surface Radiating hole 22. There are a plurality of heat dissipation holes 22, and the plurality of heat dissipation holes 22 are neatly arranged into a plurality of parallel rows of the heat dissipation holes 22. A plurality of rows of the heat dissipation holes 22 are spaced from one end of the heat dissipation fin 20 in the longitudinal direction toward the other end of the heat dissipation fin 20 in the longitudinal direction. On the one hand, the heat dissipation holes 22 can reduce the weight of the radiator and reduce the burden of transportation. On the other hand, the heat dissipation holes 22 increase the contact area between the heat and the air, and increase the rate of heat transfer to the air. Good heat dissipation effect.

Further, a heat insulation groove is provided on the first surface 21 to extend the length direction or width direction of the heat dissipation plate 20, and the heat insulation groove divides the heat dissipation plate into at least two regions. In this embodiment, two heat insulation grooves 23 are provided on the first surface 21 in the width direction of the heat dissipation plate 20, and the heat insulation groove 23 divides the heat dissipation plate into three areas. The heat-insulating groove 23 is provided between a plurality of rows of the heat dissipation holes 22 and an end of the heat dissipation fin 20 away from the heat dissipation holes 22. The heat-insulating groove 23 is used to isolate the heat transfer in different heat-consumption areas, to prevent the heat of different heat-consumption areas from affecting each other, and thus to prevent the reduction of the heat dissipation effect. In other embodiments, there are a plurality of heat dissipation holes 22, which can be arbitrarily provided on the heat dissipation fins 20, and the number of the heat insulation grooves 23 can be designed according to different numbers of actual heat consumption areas.

Referring to FIG. 3 in combination, the mounting end 32 is formed by bending one side of the body 31, the bending angle is 90 degrees, the cross section of the protective tooth 30 is "L" type, and the mounting end 32 and the surface 131 of the second mounting base 13 are fixedly connected by pasting or screwing. In this embodiment, the mounting end 32 and the surface 131 of the second mounting base 13 are fixedly connected by screwing. Of course, the mounting end 32 may also be an elongated plate, and the mounting end 32 and the body 31 are fixed to the body 31 at an angle. In other implementations, the connection between the protective tooth plate 30 and the second mounting base 13 may be that the protective tooth plate 30 is slidably mounted on the second mounting base 13. The second mounting seat 13 and the mounting surface 11 face the same surface 131 with a concave groove, the length direction of the slide groove is the same as the length direction of the second mounting seat 13, and the protection tooth plate 30 On one side, a connecting block extends perpendicular to the thickness direction of the protection tooth plate 30, and the connecting block is slidably inserted into the sliding groove from one end of the second mounting base 13. Specifically, the sliding slot is provided with an opening at one end of the second mounting base 13, and the connecting block is slid into the sliding slot from the opening, so that the protective tooth plate 30 is installed on the On the second mounting base 13. Of course, the chute can also be provided with openings at both ends of the second mounting base 13.

Referring to FIG. 7, the surface of the second mounting base 13 away from the first mounting base 12 is flush with the side surface 311 of the body 31 relative to the heat sink 20, and the side surface 311 and the second mounting An art slit 312 is provided between the seats 13, and the length direction of the art slit 312 is the same as the length direction of the body 31. Specifically, the side surface 311 is the surface of the body 31 opposite to the heat sink 20, and the art slit 312 cooperates with the device 40 for assembling the radiator, so that the radiator and the device 40 are assembled flatly .

The heat sink includes a base plate 10, a plurality of heat dissipation fins 20 mounted on the base plate 10, and two protection tooth plates 30 spaced apart, and the plurality of heat dissipation plates 20 are arranged at intervals between the two protection tooth plates 30 Each of the heat sinks 20 is detachably mounted on one of the first mounting seats 12, and the two protection tooth plates 30 are detachably mounted on the two The two mounting bases 13 enable the heat sink 20 and the protective tooth plate 30 to be separately formed during manufacture, and then assembled with the base plate 10, and the height relative to the base plate 10 is not limited by the molding process, thereby ensuring the heat dissipation effect .

The embodiments of the utility model have been described in detail above, and specific examples have been used in this article to explain the principles and implementation modes of the utility model. The descriptions of the above embodiments are only used to help understand the method and core idea of the utility model; At the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as a limitation of the utility model.

Claims

A heat sink, characterized in that the heat sink comprises a base plate, a plurality of heat dissipation fins mounted on the base plate and two protection tooth plates arranged at intervals, and a plurality of the heat dissipation fins are arranged at two intervals Between the protection teeth;

The base plate includes a mounting surface, and a first mounting base and two second mounting bases corresponding to the plurality of heat sinks are provided on the mounting surface, and each heat sink is detachably mounted on a On the first mounting base;

Each of the protection teeth includes a body and a mounting end on one side of the body, and the two protection teeth are detachably mounted on the two second mounting seats through the mounting ends, respectively, and the The height of the protection tooth plate relative to the mounting surface is greater than the height of the heat sink plate relative to the mounting surface.
The heat sink according to claim 1, wherein the first mounting seat and the mounting surface are concavely provided with slots, and the longitudinal direction of the slot is the same as that of the first mounting seat The length direction is the same, and the heat sink can be detachably installed in the slot.
The heat sink according to claim 2, wherein the slot is a sliding groove with an opening at one end, and one side of the heat sink extends perpendicularly to the thickness direction of the heat sink The slider is slid into the sliding groove from the open end of the sliding groove.
The heat sink according to claim 2, wherein the slot is a card slot, and one side of the heat sink is installed in the card slot by cold fitting, welding, or bonding.
The heat sink according to claim 1, wherein one side of the heat sink is bent and then extends to form a connection end, and the connection end and the surface of the first mounting seat are fixed by pasting or screwing connection.
The heat sink according to any one of claims 1 to 5, wherein the mounting end is formed by bending one side of the body, or the mounting end is fixed to the body at an angle with the body Upper; the mounting end and the surface of the second mounting base are fixedly connected by pasting or screwing.
The heat sink according to any one of claims 1 to 5, wherein the second mounting seat and the mounting surface are concavely provided with a sliding groove, and the length direction of the sliding groove is The second mounting seat has the same length direction, and one side of the protective tooth plate extends perpendicular to the thickness direction of the protective tooth plate, and the connecting block is slid into the end of the second mounting seat Inside the chute.
The heat sink according to claim 7, wherein the heat sink includes a first surface, and a heat insulation groove is provided on the first surface to extend a length direction or a width direction of the heat sink, and the heat insulation The groove divides the heat sink into at least two regions.
The heat sink according to claim 8, wherein the heat sink includes a second surface disposed opposite to the first surface, and further includes heat dissipation holes penetrating the first surface and the second surface.
The heat sink according to claim 9, wherein a surface of the second mounting seat away from the first mounting seat is flush with a side surface of the body relative to the heat sink, and the side surface is Art slits are provided between the second mounting seats, and the length direction of the art slits is the same as the length direction of the body.
The heat sink according to claim 1, wherein the first mounting base and the second mounting base are integrally formed with the substrate; or, the first mounting base and the second mounting base pass through Soldering, bonding or screwing on the substrate.