CN218821828U

CN218821828U - Single-channel temperature-equalizing plate

Info

Publication number: CN218821828U
Application number: CN202220968693.3U
Authority: CN
Inventors: 沈平; 林健; 张恒华; 梁立兴; 麦云锋
Original assignee: Nanning Anhe Mechanical Equipment Co ltd
Current assignee: Nanning Anhe Mechanical Equipment Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2023-04-07
Anticipated expiration: 2032-04-22

Abstract

The utility model discloses a single-channel temperature-equalizing plate, which comprises a plate body consisting of an upper plate and a lower plate, wherein the upper plate and the lower plate are formed by bending a whole piece of alloy, and the seam of the upper plate and the lower plate are welded; an action channel is arranged between the upper plate and the lower plate, and an inner fin and working fluid are arranged in the action channel; the two ends of the upper plate are respectively jointed with the two ends of the lower plate to form joint parts. The utility model discloses a joint has good leakproofness, and fluid or steam in the effect passageway are difficult for overflowing from the laminating department of joint, and the qualification rate of product technology is high, long service life. The utility model discloses a single channel samming board heat exchange efficiency is high, and resistance to compression and anti deformability are good, can bear great operating pressure, can effectively improve heat transfer efficiency, simple structure, and is small, and application scope is wide, and convenient to use has good application prospect.

Description

Single-channel temperature-equalizing plate

Technical Field

The utility model relates to a heat abstractor technical field specifically relates to a single channel samming board.

Background

The heat-radiating plate is a heat-radiating device, and its structure mainly includes a hollow plate body, a capillary structure placed in the plate body and a sealing tube communicated with interior of said plate body, said hollow plate body is formed from two separated cover plates, the external peripheral edges of these two cover plates are sealing edges, and these two cover plates are mutually covered, and after the capillary structure is combined on the internal wall surfaces of these two cover plates, said sealing edges are closed, and the sealing tube can be inserted into the filling hole of these two cover plates, so that the operations of injecting working fluid and exhausting air can be implemented at the position of said sealing tube.

After the temperature equalizing plate contacts with a heat source such as a heating electronic element, the working fluid in the hollow cavity is converted from liquid into gas and is transmitted to the upper cover plate, and finally is transmitted out by a heat dissipation device such as a fin on the outer side of the upper cover plate, at the moment, the working medium is converted back into liquid and flows back to the lower cover plate, and the next cycle is started again.

However, when the upper plate and the lower plate of the existing temperature equalizing plate are subjected to edge sealing, the appearance of the product is easily affected due to outward overflow of solder or the normal operation of the temperature equalizing plate is affected due to inward permeation into the action cavity. And the inside of the temperature-equalizing plate is often in the change of expansion with heat and contraction with cold, and the temperature-equalizing plate is required to have higher strength and higher pressure resistance integrally, so that the existing temperature-equalizing plate still has a great room for improvement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides a single channel temperature-uniforming plate.

In order to achieve the above object, the utility model provides a following technical scheme:

a single-channel temperature-equalizing plate comprises a plate body consisting of an upper plate and a lower plate, wherein the upper plate and the lower plate are formed by bending a whole piece of alloy, and the joint of the upper plate and the lower plate is welded; an action channel is arranged between the upper plate and the lower plate, and an inner fin is arranged in the action channel; the two ends of the upper plate are respectively jointed with the two ends of the lower plate to form a joint part.

Preferably, a working fluid is arranged in the acting channel.

Preferably, the inner fins are arranged along the axial direction of the inner fins in a zigzag manner to form a plurality of first turbulence grooves distributed in a vertically staggered manner.

Preferably, the inner fins are arranged in a zigzag shape along the longitudinal direction of the inner fins to form a plurality of second turbulence grooves with notches distributed in an up-and-down staggered manner.

Preferably, the side of the second spoiler groove is provided with a window.

Preferably, the inner fin sets up for the dogleg shape along its axial, forms the third disturbed flow groove of crisscross distribution from top to bottom of a plurality of notches, third disturbed flow groove is the wave type setting along its vertical.

Preferably, the length of the action channel is 20-1800mm and the width is 4-500mm.

Preferably, the joint part is in a plate shape formed by attaching the end parts of the upper plate and the lower plate, and the joint part is in the same plane with the upper plate or the lower plate or is superposed with the axial center line of the temperature equalizing plate.

Preferably, the joint part is formed by jointing the end parts of the upper plate and the lower plate into a plate shape, the end part of the lower plate is longer than the end part of the upper plate, and the end part of the lower plate is jointed with the end part of the upper plate and then is bent inwards to cover the upper surface of the upper plate.

The utility model discloses owing to adopted above-mentioned technical scheme, possessed following beneficial effect:

1. as shown in figure 9, the existing temperature-uniforming plate is formed by covering two alloy sheet bodies, heat generated when a heating source operates is conducted to a bottom plate (a hot end or an evaporation end) of the temperature-uniforming plate, and condensate inside the temperature-uniforming plate can quickly absorb the heat and convert the heat into steam, so that a large amount of heat energy is taken away. Due to the latent heat of water vapor, the hot vapor of the vapor chamber will diffuse from the high pressure zone to the low pressure zone (the condensing end), where it will rapidly condense into a liquid and release heat energy when it contacts the lower temperature inner wall. Finally, the liquid flows back to the evaporation end by utilizing the capillary action of the sponge copper, and finally a water-gas coexisting two-phase circulation system is formed. After the long-term working process is expanded with heat and contracted with cold, gaps are easy to appear at the joint, so that the problems of working fluid leakage, plate body deformation and the like are caused. The utility model discloses a temperature-uniforming plate is buckled by a lamellar body and is formed, and the joint can be by the both ends of upper plate and hypoplastron respectively the back welded seal of laminating, perhaps make the hypoplastron a little long tip and upper plate laminating back, the part of terminal not laminating is inwards buckled and is wrapped up and weld after living the upper plate again for the joint has good leakproofness, and fluid or steam in the action passageway are difficult for escaping from the laminating department of joint, and the qualification rate of product technology is high, improves machining efficiency, improves the utility model discloses a practicality. .

2. The utility model discloses a be equipped with the inner fin in the temperature equalization board, when using, hypoplastron or upper plate absorb the heat, make the working fluid heat absorption in the action passageway produce steam, and steam carries out the heat transfer through inner fin, and inner fin has increased heat exchange area, improves the radiating efficiency, can in time carry out the samming to the focus, compares traditional structure, the utility model discloses it is littleer to receive the influence of gravity. After steam passes through the inner fins to obtain preliminary cooling, the steam and the plate on the other side of the plate body exchange heat to cool, and the plate quickly emits heat to the outside through the external radiating fins and the like. The steam is cooled for the second time, condensed into liquid, and then subjected to next heat dissipation, and the cooling function can be realized by circulating the way. And because the inner fins are arranged in the action channel, the heat exchange efficiency is enhanced, the heat of the steam is not easily conducted to the backflow condensed liquid, the steam can play a supporting role, the kinetic energy of the steam is reduced, the steam is prevented from impacting the plate body too much, the compression resistance and the deformation resistance of the plate body are improved, the problems of leakage, vibration and the like caused by the deformation of the plate body are avoided, and the service life of the uniform temperature plate is prolonged.

3. Compared with the traditional uniform temperature plate with the same size, the utility model has the advantages that the production cost is reduced by at least 25 percent, the qualification rate is increased by 10 to 20 percent, and the production cycle is shortened by at least 50 percent.

To sum up, the utility model discloses a single channel samming board heat exchange efficiency is high, and resistance to compression and resistance to deformation can be good, can bear great operating pressure, and whole leakproofness is good, can effectively improve heat transfer efficiency, simple structure, and is small, and application scope is wide, and convenient to use has good application prospect.

Drawings

Fig. 1 is a schematic view of the whole structure of a temperature equalization plate according to embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of a vapor chamber in embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of an inner fin in embodiment 1 of the present invention.

Fig. 4 is a schematic structural view of an inner fin in embodiment 2 of the present invention.

Fig. 5 is a schematic structural view of an inner fin in embodiment 3 of the present invention.

Fig. 6 is a schematic structural view of an inner fin according to embodiment 4 of the present invention.

Fig. 7 is a longitudinal sectional view of a plate body of a temperature equalizing plate according to the embodiment of the present invention.

FIG. 8 is a schematic view of a vapor chamber with a cross-shaped hole on the surface.

Fig. 9 is a schematic structural view of a conventional vapor chamber.

In the drawings: 1-upper plate, 2-lower plate, 3-action channel, 4-first inner fin, 5-first joint, 6-fourth inner fin, 7-first flow disturbing groove, 8-third inner fin, 9-second flow disturbing groove, 10-window, 11-third flow disturbing groove, 12-second joint and 13-second inner fin.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and preferred embodiments. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.

Example 1

As shown in fig. 1-3, the single-channel vapor chamber of the present invention comprises a plate body composed of an upper plate 1 and a lower plate 2, wherein the upper plate 1 and the lower plate 2 are formed by bending a whole piece of copper alloy, and the joint of the upper plate 1 and the lower plate 2 is welded. An action channel 3 is arranged between the upper plate 1 and the lower plate 2, and an inner fin 4 and a working fluid 6 are arranged in the action channel 3; the two ends of the plate body are respectively provided with a first joint part 5, and the first joint parts 5 are respectively close to and attached to the two ends of the lower plate 2 from the two ends of the upper plate 1, so that the first joint parts 5 and the lower plate 2 are positioned on the same plane. The inner fins 4 are arranged in a zigzag shape along the axial direction of the inner fins to form first flow disturbing grooves 7 which are distributed in a vertically staggered mode in a plurality of notches.

Example 2

As shown in fig. 4, this embodiment provides a single-channel temperature-uniforming plate, which is different from embodiment 1 in that a second inner fin 13 is used instead of the first inner fin 4, the second inner fin 13 is disposed in a zigzag shape along the longitudinal direction thereof, and a plurality of second turbulence grooves 9 with notches distributed in an up-and-down staggered manner are formed.

Example 3

As shown in fig. 5, this embodiment provides a single-channel temperature-equalizing plate, which is different from embodiment 3 in that a third inner fin 8 is used instead of the second inner fin 13, and the third inner fin 8 is different from the second inner fin 13 in that a window 10 is further provided on the second turbulence groove 9.

Example 4

As shown in fig. 6, the present embodiment provides a single-channel temperature equalizing plate, which is different from embodiment 1 in that a fourth inner fin 6 is used instead of the first inner fin 4, the fourth inner fin 6 is arranged in a zigzag shape along the axial direction thereof, a plurality of third turbulence grooves 11 are formed in a staggered manner, and the third turbulence grooves 11 are arranged in a wave shape along the longitudinal direction thereof.

Example 5

As shown in fig. 7, this embodiment provides a single-channel temperature equalizing plate, which is different from embodiment 1 in that both ends of the lower plate 2 are longer than the end portions of the upper plate 1, and the end portions of the lower plate 2 are folded inwards to cover the upper surface of the upper plate 1 after being attached to the end portions of the upper plate 1, thereby forming a second joint portion 12 having a 3-layer structure.

Example 5 in addition to the first inner fin 4, the inner fin of any one of examples 2 to 4 may be used instead of the first inner fin 4 of this example. Furthermore, except the utility model provides an inside fin of multiple structure, in the indirect heating equipment field, other radiating fin that are used for hot exchange pipe's not isostructure also are applicable to the utility model discloses a samming board structure.

The length range of the action channel 3 in each temperature equalizing plate in the embodiment of the application is 20-1800mm, and the width range is 4-500mm.

The working principle of the temperature-equalizing plate in each embodiment is the same, taking fig. 1 as an example, a, b and c in fig. 1 sequentially represent three stage change processes during the processing of the temperature-equalizing plate, a in fig. 1 represents a welded plate body, two ends of the plate body are not welded in a closed state, one end of the plate body is attached and welded and sealed, the plate body is changed from an a state to a b state, the first inner fin 4 is placed from the non-closed end, working fluid is injected, degassing and brazing are subsequently carried out, the other joint part is changed from the b state to a c state, and the temperature-equalizing plate is integrally sealed and can be put into use.

Furthermore, still can be in the utility model discloses a surface punches, improves heat radiating area, and the type of punching includes but not limited to cross hole (as figure 8), splayed punching, parallel single row hole/double row hole etc..

Analysis of product Properties

In order to verify the performance effect of the utility model, use traditional product (figure 9) and the utility model discloses a product carries out the contrast of the difference in temperature under thermal resistance and the different inclination. The single channel refers to a product with the structure of the embodiment 1, the double channel refers to that on the basis of the structure of the embodiment 1, a separation strip is added in the middle of the inner part of the channel, the single channel is divided into two channels with the same size, and the three channels, the four channels and the like are obtained.

The heating power of the inclination angle temperature difference test is 400W, and the dotting single channel refers to dotting on the surface on the basis of a single channel product. The analogy is that 'dotting two channels', 'dotting three channels'.

TABLE 1 comparison of thermal resistances

TABLE 2 comparison of temperature differences

As shown in tables 1 and 2, the thermal resistance of the utility model is smaller than the traditional product, and the thermal resistance and the temperature difference become smaller gradually along with the increase of the number of the channels. Because the utility model discloses compare traditional samming board that manufacturing cost and production cycle range of decline are great, and the qualification rate range of rise is big (manufacturing cost descends 25% at least, and the qualification rate rises 10-20%, and production cycle shortens 50% at least), considers comprehensively that the reduction of thermal resistance, the difference in temperature is in the acceptable within range.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A single-channel temperature-uniforming plate comprises a plate body consisting of an upper plate and a lower plate, and is characterized in that the upper plate and the lower plate are formed by bending a whole alloy, and the joint of the upper plate and the lower plate is welded; an action channel is arranged between the upper plate and the lower plate, and an inner fin is arranged in the action channel; the two ends of the upper plate are respectively jointed with the two ends of the lower plate to form a joint part.

2. The single-channel vapor chamber of claim 1, wherein the working channel is filled with a working fluid.

3. The single-channel temperature equalizing plate of claim 1, wherein the inner fins are arranged in a zigzag shape along the axial direction thereof to form a plurality of first turbulence grooves with notches distributed in an up-and-down staggered manner.

4. The single-channel temperature equalizing plate of claim 1, wherein the inner fins are disposed in a zigzag shape along a longitudinal direction thereof to form a plurality of second turbulence grooves with notches distributed in an up-and-down staggered manner.

5. The single-channel temperature equalization plate of claim 4, wherein the side of the second turbulence groove is provided with a window.

6. The single-channel temperature equalizing plate of claim 1, wherein the inner fins are disposed in a zigzag shape along an axial direction thereof, and form third turbulence grooves with a plurality of notches distributed in an up-and-down staggered manner, and the third turbulence grooves are disposed in a wave shape along a longitudinal direction thereof.

7. The single-channel temperature equalization plate of claim 1, wherein the active channel has a length of 20-1800mm and a width of 4-500mm.

8. The single channel temperature equalization plate of claim 1, wherein the joint is formed by attaching the end portions of the upper plate and the lower plate together in a plate shape, and the joint is coplanar with the upper plate or the lower plate or coincides with the axial center line of the single channel temperature equalization plate.

9. The single-channel temperature equalization plate of claim 1, wherein the joint is formed by attaching end portions of an upper plate and a lower plate in a plate shape, the end portion of the lower plate is longer than the end portion of the upper plate, and the end portion of the lower plate is folded inward to cover the upper surface of the upper plate after being attached to the end portion of the upper plate.