阅读说明：本技术 一种散热装置及电池组件制造设备 (Heat abstractor and battery pack manufacture equipment ) 是由 彭松 金浩 郭志球 胡国波 胡兆刚 于 2020-06-30 设计创作，主要内容包括：本发明实施例涉及清洁能源领域,公开了一种散热装置及电池组件制造设备。本发明中的散热装置,用于电池组件的散热,包括：冷却管,所述冷却管包括相对设置的内表面和外表面,所述内表面围设形成用于流通冷却气体的气流通道,所述外表面用于抵接相邻电池片的交叠部分。本发明提供的散热装置及电池组件制造设备,能够在电池组件传送过程中对相邻电池片的交叠部分进行冷却,改善并片由于焊死造成的电池串隐裂问题。(The embodiment of the invention relates to the field of clean energy, and discloses a heat dissipation device and battery pack manufacturing equipment. The heat sink of the invention is used for heat dissipation of the battery pack, and comprises: the cooling pipe comprises an inner surface and an outer surface which are oppositely arranged, the inner surface is surrounded to form a gas flow channel for circulating cooling gas, and the outer surface is used for abutting against the overlapped parts of the adjacent battery pieces. The heat dissipation device and the battery pack manufacturing equipment provided by the invention can cool the overlapped part of the adjacent battery pieces in the battery pack conveying process, and solve the problem of hidden battery string crack caused by welding of the combined pieces.)

1. A heat dissipating device for dissipating heat from a battery assembly, comprising: the cooling pipe comprises an inner surface and an outer surface which are oppositely arranged, the inner surface is surrounded to form a gas flow channel for circulating cooling gas, and the outer surface is used for abutting against the overlapped parts of the adjacent battery pieces.

2. The heat dissipating device of claim 1, wherein the cooling pipe has a duct extending direction perpendicular to the arrangement direction of the adjacent battery cells.

3. The heat dissipating device of claim 2, wherein the cross section of the cooling pipe in the arrangement direction of the adjacent battery cells is square, triangular, trapezoidal, or racetrack shaped.

4. The heat dissipating device of claim 1, wherein the cooling tubes are arranged in a zigzag shape.

5. The heat dissipating device of claim 4, wherein the cooling tubes are arranged in a triangular zigzag shape, or the cooling tubes are arranged in a rectangular zigzag shape.

6. The heat dissipating device according to claim 5, wherein the cooling pipe includes a plurality of contact portions that contact the overlapping portion, and a plurality of non-contact portions that are alternately arranged with the plurality of contact portions in an air flow direction inside the cooling pipe.

7. The heat dissipation device according to claim 1, wherein the number of the cooling pipes is plural, and the arrangement direction of the plural cooling pipes is the same as the arrangement direction of the adjacent battery pieces.

8. The heat dissipating device of claim 1, wherein the cooling tube is made of metal.

9. The heat dissipating device of claim 1, further comprising: the cooling pipe and the pressing component are arranged on the base.

10. The heat dissipating device of claim 9, wherein the base comprises a first bearing portion and a second bearing portion connected to two ends of the cooling tube, respectively, the first bearing portion is provided with a first air inlet hole, the second bearing portion is provided with a first air outlet hole, and the first air inlet hole and the first air outlet hole are communicated with the cooling tube.

11. A battery pack manufacturing apparatus, characterized by comprising: the heat dissipating device according to any one of claims 1 to 10, and a conveying mechanism for conveying the battery pieces, the heat dissipating device being located above the conveying mechanism.

12. The battery pack manufacturing apparatus according to claim 11, further comprising: a heating bottom plate positioned below the conveying mechanism;

the heating bottom plate comprises a first surface facing the heat dissipation device, and a plurality of second air outlet holes and a plurality of second air inlet holes are formed in the first surface;

the second air outlet and the second air inlet are located on two sides of the conveying mechanism, and the second air outlet and the second air inlets are arranged in sequence along the conveying direction of the conveying mechanism respectively.

13. The battery pack manufacturing apparatus according to claim 12, wherein a plurality of the second air outlet holes communicate with each other, and a plurality of the second air inlet holes communicate with each other.

14. The battery pack manufacturing apparatus according to claim 13, further comprising: the heating bottom plate is provided with an air inlet channel, an air outlet channel and a plurality of sealing pieces for sealing the air inlet channel and the air outlet channel, and the air inlet channel and the air outlet channel penetrate through the heating bottom plate along the conveying direction of the conveying mechanism;

the plurality of second air outlets are communicated with each other through the air inlet channel, and the plurality of second air inlets are communicated with each other through the air outlet channel.

15. The battery pack manufacturing apparatus according to claim 14, wherein the heated base plate is further provided with at least one third air inlet port communicating with the second air outlet hole, and at least one third air outlet port communicating with the second air inlet port;

the heating soleplate further comprises: a plurality of said seals are located on said second surface and said third surface, and said third air inlet and said third air outlet are located on said fourth surface and said fifth surface, respectively.

Technical Field

The embodiment of the invention relates to the field of clean energy, in particular to a heat dissipation device and battery pack manufacturing equipment.

Background

With the continuous development and progress of the clean energy photovoltaic industry, cost reduction and efficiency improvement are problems which need to be solved urgently at present, and sheet combination (overlapping welding strips) is a scheme for increasing the effective illumination area of a battery assembly by canceling sheet intervals so as to improve the power of the battery assembly. The scheme specifically includes that the middle section of the welding strip 30 is flattened, the thickness of the middle section is reduced, the battery pieces 12 are overlapped and welded, and the battery string after the battery pieces are welded is shown in fig. 1 and fig. 2.

The inventor finds that at least the following problems exist in the prior art: and the welding strip is overlapped with the battery piece at the overlapping part of the adjacent battery pieces, so that the problem of hidden crack of the battery string caused by the dead welding of the overlapping part is easy to occur.

Disclosure of Invention

The invention aims to provide a heat dissipation device and battery pack manufacturing equipment, which can cool overlapped parts of adjacent battery pieces in the conveying process of a battery pack and solve the problem of hidden cracking of battery strings caused by welding of the battery pieces.

In order to solve the above technical problem, an embodiment of the present invention provides a heat dissipation device for dissipating heat of a battery assembly, including: the cooling pipe comprises an inner surface and an outer surface which are oppositely arranged, the inner surface is surrounded to form a gas flow channel for circulating cooling gas, and the outer surface is used for abutting against the overlapped parts of the adjacent battery pieces.

Embodiments of the present invention also provide a battery pack manufacturing apparatus including: the heat dissipation device is located above the conveying mechanism.

Compared with the prior art, the heat dissipation device comprises the following components: the cooling tube, the cooling tube includes relative internal surface and the surface that sets up, the internal surface encloses to establish and forms the air current passageway that is used for circulating cooling gas, the surface is used for the overlap portion of butt adjacent battery piece, through the heat-conduction between the overlap portion of cooling tube and adjacent battery piece, has realized cooling the overlap portion of adjacent battery piece in battery pack transfer process, has improved and has combined the piece because the latent problem that splits of battery cluster that the weld caused to, compare in blast cooling, contact heat-conduction cooling effect is better.

In addition, the extending direction of the pipeline of the cooling pipe is perpendicular to the arrangement direction of the adjacent battery plates.

In addition, the cross section of the cooling pipe in the arrangement direction of the adjacent battery pieces is square, triangular, trapezoidal or racetrack-shaped.

In addition, the cooling pipe is arranged in a zigzag shape.

In addition, the cooling pipe is arranged in a triangular zigzag shape, or the cooling pipe is arranged in a rectangular zigzag shape.

In addition, the cooling pipe includes a plurality of contact portions that contact the overlapping portion, and a plurality of non-contact portions that are alternately arranged with the plurality of contact portions in an airflow direction inside the cooling pipe. So set up, the contact site leads to the cooling gas temperature in the contact site to rise after with the overlap heat exchange, and the lower cooling gas of temperature in the non-contact portion replenishes immediately in the contact site for the cooling effect of cooling tube is better.

In addition, the number of the cooling pipes is multiple, and the arrangement direction of the multiple cooling pipes is the same as the arrangement direction of the adjacent battery pieces.

In addition, the material of the cooling pipe is metal. Because the heat conduction of the metal material is faster, the cooling effect of the cooling pipe can be improved.

In addition, the heat dissipating device further includes: the cooling pipe and the pressing component are arranged on the base.

In addition, the base comprises a first bearing part and a second bearing part which are respectively connected with two ends of the cooling pipe, a first air inlet hole is formed in the first bearing part, a first air outlet hole is formed in the second bearing part, and the first air inlet hole and the first air outlet hole are communicated with the cooling pipe.

In addition, the battery pack manufacturing apparatus further includes: a heating bottom plate positioned below the conveying mechanism; the heating bottom plate comprises a first surface facing the heat dissipation device, and a plurality of second air outlet holes and a plurality of second air inlet holes are formed in the first surface; the second air outlet and the second air inlet are located on two sides of the conveying mechanism, and the second air outlet and the second air inlets are arranged in sequence along the conveying direction of the conveying mechanism respectively. According to the arrangement, in the process of conveying the battery piece by the conveying mechanism, the first air inlet holes can be respectively and rightly arranged with at least one of the second air outlet holes, and the first air outlet holes can be respectively and rightly arranged with at least one of the second air inlet holes, so that the cooling gas in the cooling pipe can be continuously supplied, and the overlapped part can be continuously cooled in the process of conveying the battery piece.

In addition, a plurality of the second air outlet holes are communicated with each other, and a plurality of the second air inlets are communicated with each other. So set up, it is a plurality of the second venthole can share the third air inlet, and is a plurality of the third air outlet can be shared to the second air inlet, need not every second venthole and corresponds respectively and sets up a third air inlet hole, every second air inlet corresponds respectively and sets up a third venthole, and the structure is simpler.

In addition, the battery pack manufacturing apparatus further includes: the heating bottom plate is provided with an air inlet channel, an air outlet channel and a plurality of sealing pieces for sealing the air inlet channel and the air outlet channel, and the air inlet channel and the air outlet channel penetrate through the heating bottom plate along the conveying direction of the conveying mechanism; the plurality of second air outlets are communicated with each other through the air inlet channel, and the plurality of second air inlets are communicated with each other through the air outlet channel. Realize a plurality ofly through punching the second venthole communicates each other and a plurality of the second air inlet communicates each other, and processing is simple, and the preparation is convenient.

In addition, the heating bottom plate is also provided with at least one third air inlet communicated with the second air outlet hole and at least one third air outlet communicated with the second air inlet; the heating soleplate further comprises: a plurality of said seals are located on said second surface and said third surface, and said third air inlet and said third air outlet are located on said fourth surface and said fifth surface, respectively. So set up for when a plurality of heating bottom plates were arranged in proper order, the third air inlet with the third gas outlet can not sheltered from, is convenient for cooling gas's the access and gaseous derivation after the heat-conduction.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic perspective view of a battery string after sheet combination in the prior art;

FIG. 2 is a front view of a battery string after lamination in the prior art;

fig. 3 is a schematic structural diagram of a heat dissipation device according to a first embodiment of the present invention;

FIG. 4 is a cross-sectional view of a cooling tube provided in accordance with an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a cooling tube according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a battery pack manufacturing apparatus according to a second embodiment of the present invention;

FIG. 7 is a schematic structural view of a heating base plate according to a second embodiment of the present invention

Fig. 8 is a sectional view of a heated base plate provided in a second embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.

A first embodiment of the present invention relates to a heat dissipation device 100 for dissipating heat of a battery assembly, as shown in fig. 3, including: the cooling pipe 11 is a hollow tubular structure, the cooling pipe 11 comprises an inner surface and an outer surface which are oppositely arranged, the inner surface is surrounded to form a gas flow channel for circulating cooling gas, and the outer surface is used for abutting against the overlapped part 121 of the adjacent battery piece 12.

Specifically, the duct extending direction of the cooling pipe 11 is perpendicular to the arrangement direction of the adjacent battery pieces 12, wherein the battery pieces 12 are arranged as shown in fig. 1 and 2, the cross section of the cooling pipe 11 in the arrangement direction of the adjacent battery pieces 12 is square, and one side of the square cooling pipe 11 abuts against the overlapping portion 121 of the adjacent battery piece 12.

In another embodiment, as shown in fig. 4, the cross section of the cooling pipe 11 in the arrangement direction of the adjacent battery plates 12 is a racetrack shape, the racetrack shape includes two straight edges 111 arranged oppositely, and two arc-shaped edges 112 connecting the two straight edges 111, and the straight edges 111 of the racetrack-shaped cooling pipe 11 abut against the overlapped portions 121 of the adjacent battery plates 12.

Of course, the cross section of the cooling pipe 11 in the arrangement direction of the adjacent battery pieces 12 may also be a triangle, and one side of the cooling pipe 11 in the triangle abuts against the overlapping portion 121 of the adjacent battery piece 12, or the cross section of the cooling pipe 11 in the arrangement direction of the adjacent battery piece 12 in the trapezoid, and the long side or the short side of the cooling pipe 11 in the trapezoid abuts against the overlapping portion 121 of the adjacent battery piece 12, which is not limited herein.

Wherein the size of the cooling pipe 11 in the arrangement direction of the adjacent battery pieces 12 is larger than that of the overlapping portion 121, so that each position of the overlapping portion 121 can be sufficiently cooled.

In the present embodiment, the cooling pipe 11 is linearly disposed, and the width of the cooling pipe 11 is 1.5 times to 2.5 times, for example, 1.5 times, 1.75 times, 2 times, 2.25 times, 2.5 times, or the like, of the width of the overlapping portion 121.

It is understood that the cooling pipe 11 may also be disposed in a zigzag shape, for example, the cooling pipe 11 is disposed in a triangular zigzag shape, or the cooling pipe 11 is disposed in a rectangular zigzag shape; alternatively, the cooling pipe 11 may be disposed in a curved shape, for example, the cooling pipe 11 may be disposed in an S-shape.

As shown in fig. 5, the cooling pipe 11 is schematically arranged in a rectangular zigzag shape, the cooling pipe 11 includes a plurality of contact portions 113 contacting the overlapping portion 121, and a plurality of non-contact portions 114 alternately arranged with the plurality of contact portions 113 in the airflow direction in the cooling pipe 11, and the plurality of non-contact portions 114 are located on one side or both sides of the overlapping portion 121 and do not contact the overlapping portion 121, so that when the contact portions 113 and the overlapping portion 121 are heat exchanged to increase the temperature of the cooling gas in the contact portions 113, the cooling gas with a lower temperature in the non-contact portions 114 is immediately supplemented into the contact portions 113, so that the cooling effect of the cooling pipe 11 is better.

The material of the cooling pipe 11 may be metal, and the heat conduction of the metal material is faster, so that the cooling effect of the cooling pipe 11 can be improved.

In practical applications, the number of the cooling pipes 11 may be one or more, and when the number of the cooling pipes 11 is multiple, the arrangement direction of the cooling pipes 11 is the same as the arrangement direction of the adjacent battery plates 12.

Specifically, the heat dissipation device 100 may further include: the cooling tube 11 and the pressing member 14 are both disposed on the base 13, further, the pressing member 14 includes a pressing needle rod 141 fixed to the base 13, a pressing needle 142 embedded in the pressing needle rod 141, and a fixing strip 143 for fixing the pressing needle 142, and the pressing needle 142 is used for pressing the solder strip and the battery piece 12, so as to prevent the battery piece 12 from displacing during the transmission process and causing inaccurate welding position.

In practical application, the base 13 includes a first bearing portion 131 and a second bearing portion 132 respectively connected to two ends of the cooling pipe 11, the first bearing portion 131 is provided with a first air inlet hole 15, the second bearing portion 132 is provided with a first air outlet hole 16, the first air inlet hole 15 and the first air outlet hole 16 are communicated with the cooling pipe 11, and the cooling pipe 11 realizes the inflow and the discharge of cooling gas through the first air inlet hole 15 and the first air outlet hole 16 respectively.

Compared with the prior art, the heat dissipation device 100 of the embodiment of the invention comprises: the cooling pipe 11 comprises an inner surface and an outer surface which are oppositely arranged, the inner surface is surrounded and formed with an airflow channel for circulating cooling gas, the outer surface is used for abutting against the overlapped parts 121 of the adjacent battery plates 12, through heat conduction between the cooling pipe 11 and the overlapped parts 121 of the adjacent battery plates 12, the overlapped parts 121 of the adjacent battery plates 12 are cooled in the conveying process of the battery assembly, the problem of hidden battery string cracking caused by welding of the battery plates is solved, and compared with air blowing cooling, the contact type heat conduction cooling effect is better.

A second embodiment of the present invention relates to a battery pack manufacturing apparatus 200, as shown in fig. 6, including: the heat dissipation device 100 is located above the conveying mechanism 17, and the conveying mechanism 17 is used for conveying the battery pieces 12.

In practical applications, the battery pack manufacturing apparatus 200 may further include: the heating bottom plate 18 is located below the conveying mechanism 17, and the heating lamp tube (not shown) and the welding press pin (not shown) are located above the conveying mechanism 17, the heating lamp tube (not shown) and the welding press pin are arranged in the middle section of the conveying path, and the heating bottom plate 18 and the heating lamp tube are used for heating the welding strip and matching with the pressing and holding of the welding press pin on the welding position after the battery piece and the welding strip are placed, so that the welding of the battery assembly is achieved. Optionally, the battery pack manufacturing apparatus 200 may further include a cooling blower pipe (not shown) disposed above the transfer mechanism 17 and adjacent to the welding pins so as to be capable of being cooled by blowing compressed air during welding.

As shown in fig. 7, the heating base plate 18 includes a first surface 181 facing the heat sink 100, the first surface 181 is provided with a plurality of second air outlets 19 and a plurality of second air inlets 20, the second air outlets 19 and the second air inlets 20 are located at two sides of the conveying mechanism 17, and the plurality of second air outlets 19 and the plurality of second air inlets 20 are sequentially arranged along the conveying direction of the conveying mechanism 17. With this arrangement, in the process of conveying the battery pieces 12 by the conveying mechanism 17, the first air inlet holes 15 can be respectively arranged opposite to at least one of the second air outlet holes 19, and the first air outlet holes 16 can be respectively arranged opposite to at least one of the second air inlet holes, so that the supply of the cooling gas in the cooling pipe 11 can be continuously realized, and the continuous cooling of the overlapped part 121 in the process of conveying the battery pieces 12 can be realized.

In this embodiment, it is a plurality of the second ventholes 19 communicate with each other, it is a plurality of the second air inlets 20 communicate with each other, so set up, it is a plurality of the third air inlet 23 can be shared to the second venthole 19, it is a plurality of the third air outlet can be shared to the second air inlet 20, need not that every second venthole 19 corresponds respectively and sets up a third air inlet, every second inlet port corresponds respectively and sets up a third venthole, the structure is simpler.

Further, the battery pack manufacturing apparatus 200 may further include: air inlet channel 21 and air outlet channel, and seal air inlet channel 21 with a plurality of sealing members 22 of air outlet channel, sealing member 22 can be hexagonal fastening screw, air inlet channel 21 with air outlet channel all follows run through in transport mechanism 17's the direction of transfer heating bottom plate 18, it is a plurality of second venthole 19 via air inlet channel 21 communicates each other, and is a plurality of second air inlet 20 via air outlet channel communicates each other. That is, through punching (forming the air inlet channel 21 and the air outlet channel), the plurality of second air outlet holes 19 and the plurality of second air inlets 20 are communicated with each other, so that the processing is simple, and the preparation is convenient.

As shown in fig. 8, in practical applications, the heating base plate 18 may further be provided with at least one third air inlet 23 communicated with the second air outlet 19, and at least one third air outlet (not shown) communicated with the second air inlet 20; the heated soleplate 18 further comprises: a second surface 182 and a third surface disposed opposite each other, and a fourth surface 183 and a fifth surface disposed opposite each other, a plurality of said seals 22 being located on said second surface 182 and said third surface, the third air inlet 23 and the third air outlet are respectively positioned on the fourth surface 183 and the fifth surface, that is, a plurality of round blind holes are arranged in the up-down direction, a transverse round through hole is arranged in the middle of the third air inlet, the transverse round through hole is communicated with the round blind holes in the up-down direction, a blind hole is arranged on the left side of the front side and is communicated with the transverse round through hole, the arrangement is such that, when a plurality of heating bases 18 are arranged in sequence, the third air inlet 23 and the third air outlet are not shielded, the air outlet of the cooling air supply device is conveniently communicated with the third air inlet 23, and the heat-conducted air is conveniently led out through the third air outlet.

The entire cooling gas flow direction is as follows: the cooling gas enters through the third air inlet 23, sequentially passes through the second air outlet 19 and the first air inlet 15 to reach the cooling pipe 11, and then sequentially passes through the first air outlet 16 and the second air inlet after heat conduction, and finally flows out through the third air outlet.

The work flow of the battery pack manufacturing apparatus 200 is as follows: the first battery back side is welded and is taken the traction, the first battery is placed, the battery openly is welded and is taken the traction, the conveyer belt is step-by-step, the second battery is placed, heating fluorescent tube and welding tucking work are in order to accomplish the welding of first battery and second battery, place heat abstractor 100 and make the overlapping part 121 of cooling tube 11 butt adjacent battery piece 12, repeat above-mentioned step, accomplish the preparation of whole battery pack.

Compared with the prior art, the heat dissipation device 100 of the embodiment of the invention comprises: the cooling pipe 11 comprises an inner surface and an outer surface which are oppositely arranged, the inner surface is surrounded and formed with an airflow channel for circulating cooling gas, the outer surface is used for abutting against the overlapped parts 121 of the adjacent battery plates 12, through heat conduction between the cooling pipe 11 and the overlapped parts 121 of the adjacent battery plates 12, the overlapped parts 121 of the adjacent battery plates 12 are cooled in the conveying process of the battery assembly, the problem of hidden battery string cracking caused by welding of the battery plates is solved, and compared with air blowing cooling, the contact type heat conduction cooling effect is better.

Since the second embodiment corresponds to the present embodiment, the present embodiment can be implemented in cooperation with the second embodiment. The related technical details mentioned in the second embodiment are still valid in this embodiment, and the technical effects that can be achieved in the second embodiment can also be achieved in this embodiment, and are not described herein again in order to reduce the repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the second embodiment.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.