阅读说明：本技术 冷板涂胶装置及方法 (Cold plate gluing device and method ) 是由 修书董 杨振宇 张海建 于 2020-06-29 设计创作，主要内容包括：本发明涉及冷板涂胶领域,其实施方式提供了一种冷板涂胶装置,所述装置包括：由滑轨所构成的框架,以及设置于所述框架内的至少两根纵向移动定位杆和至少两根横向移动定位杆,所述纵向移动定位杆和横向移动定位杆的两端均与所述滑轨相连；所述纵向移动定位杆和横向移动定位杆用于根据用户设置,将所述冷板划分为若干区域；所述若干区域中的一个或多个区域用于供所述用户选择地进行涂胶作业。同时还提供了一种对应的冷板涂胶方法。本发明实施方式提供的装置和方法能够缩短研发的时间和成本,且简单方便,适用于多种涂胶场合。(The invention relates to the field of cold plate gluing, and an embodiment of the invention provides a cold plate gluing device, which comprises: the device comprises a framework formed by slide rails, and at least two longitudinal movement positioning rods and at least two transverse movement positioning rods arranged in the framework, wherein two ends of each of the longitudinal movement positioning rods and the transverse movement positioning rods are connected with the slide rails; the longitudinal moving positioning rod and the transverse moving positioning rod are used for dividing the cold plate into a plurality of areas according to the setting of a user; one or more of the zones are for selective application of glue by the user. Meanwhile, a corresponding cold plate gluing method is also provided. The device and the method provided by the embodiment of the invention can shorten the research and development time and cost, are simple and convenient, and are suitable for various gluing occasions.)

1. A cold plate gluing device, characterized in that the device comprises:

a frame constituted by a slide rail; and

the two ends of the longitudinal movement positioning rod and the transverse movement positioning rod are connected with the sliding rail;

the longitudinal moving positioning rod and the transverse moving positioning rod are used for dividing the cold plate to be glued into a plurality of areas according to the setting of a user; one or more of the zones are for selective application of glue by the user.

2. The apparatus of claim 1, wherein the frame has a shape that matches a shape of the cold plate.

3. The device of claim 1, wherein the frame has a scale marked thereon, the scale being used to identify the positions of the longitudinally moving detent lever and the laterally moving detent lever.

4. The device of claim 1, wherein the tightness between the longitudinally moving positioning rod and the frame and between the transversely moving positioning rod and the frame are adjusted by a screw fixing knob.

5. A cold plate gluing method is characterized by comprising the following steps:

dividing a cold plate to be glued into a plurality of areas;

obtaining the temperature field distribution of the cold plate through thermal simulation;

and determining the gluing amount of each area based on the relation between the temperature of the area and the average temperature of the cold plate.

6. The method of claim 5, wherein the regions are closely adjacent and identically sized squares.

7. The method according to claim 5, wherein determining the glue spread for each zone based on the temperature of the zone versus the average temperature of the cold plate comprises:

1) judging whether the temperature field distribution of the cold plate meets the requirement of temperature difference;

2) if the temperature distribution does not meet the preset temperature range, adjusting the gluing amount of the area, and obtaining the temperature field distribution of the cold plate through thermal simulation again;

3) and repeating the steps 1) and 2) until the temperature field distribution of the cold plate meets the temperature difference requirement, and obtaining the gluing amount of the region.

8. The method of claim 7, wherein said adjusting the amount of glue applied to said region comprises:

if the temperature variation of the area is larger than the average temperature variation of the cold plate, reducing the gluing amount of the area;

and if the temperature variation of the area is smaller than the average temperature variation of the cold plate, increasing the gluing amount of the area.

9. The method of claim 5, further comprising:

gluing the corresponding area of the cold plate by using the cold plate gluing device according to any one of claims 1 to 4 based on the determined gluing amount of the area.

10. The method according to claim 9, wherein the positions of the longitudinal movement positioning rod and/or the transverse movement positioning rod are moved to glue different areas of the cold plate until the gluing work of the cold plate is completed.

Technical Field

The invention relates to the field of cold plate gluing, in particular to a cold plate gluing device and a cold plate gluing method.

Background

With the popularization of electric vehicles, the requirements of consumers on the endurance mileage and the output power of battery vehicles are higher and higher, and the key for solving the problem is to improve the performance of power batteries. Because the lithium ion battery is sensitive to temperature, the lithium ion battery needs to be subjected to temperature control through a thermal management system in the battery pack, so that the lithium ion battery always works in an optimal range, the conventional thermal management liquid cooling plate and the battery cell are filled through a heat conduction pad, the cost is high, the effect is poor, the conventional non-modular battery pack is filled with the liquid cooling plate and the battery cell through heat conduction glue, the heat conduction effect is good, and the cost is low. Because of the non-module scheme battery pack, the battery cell is very long and is arranged closely, no redundant space arrangement pipeline is provided, the battery cell can only be designed into an integrated large cooling plate, the temperature equalizing performance of the integrated large cooling plate is very poor, the battery cell cannot be heated or cooled effectively, and the performance of the battery cell in use can be reduced.

Disclosure of Invention

In view of the above, the present invention is directed to a cold plate gluing device and method, so as to at least solve the problem of poor temperature equalization performance of the conventional battery cell in a contact type heat dissipation manner.

In a first aspect of the invention, there is provided a cold plate gluing device, the device comprising: a frame constituted by a slide rail; the two ends of the longitudinal movement positioning rod and the transverse movement positioning rod are connected with the sliding rail; the longitudinal moving positioning rod and the transverse moving positioning rod are used for dividing the cold plate to be glued into a plurality of areas according to the setting of a user; one or more of the zones are for selective application of glue by the user.

Preferably, the shape of the frame matches the shape of the cold plate.

Preferably, the frame is marked with scales for marking the positions of the longitudinal movement positioning rod and the transverse movement positioning rod.

Preferably, the tightness between the longitudinal moving positioning rod and the frame and between the transverse moving positioning rod and the frame are adjusted through spiral fixing knobs.

In a second aspect of the present invention, there is also provided a cold plate gluing method, the method comprising:

dividing a cold plate to be glued into a plurality of areas; obtaining the temperature field distribution of the cold plate through thermal simulation; and determining the gluing amount of each area based on the relation between the temperature of each area and the average temperature of the cold plate.

Preferably, the regions are closely adjacent squares of the same size.

Preferably, the determining the gluing amount of the regions based on the relationship between the temperature of each region and the average temperature of the cold plate comprises:

1) judging whether the temperature field distribution of the cold plate meets the requirement of temperature difference; 2) if the temperature distribution does not meet the preset temperature range, adjusting the gluing amount of the area, and obtaining the temperature field distribution of the cold plate through thermal simulation again; 3) and repeating the steps 1) and 2) until the temperature field distribution of the cold plate meets the temperature difference requirement, and obtaining the gluing amount of the region.

Preferably, the adjusting of the glue coating amount of the region includes: if the temperature variation of the area is larger than the average temperature variation of the cold plate, reducing the gluing amount of the area; and if the temperature variation of the area is smaller than the average temperature variation of the cold plate, increasing the gluing amount of the area.

Preferably, the method further includes gluing the corresponding area of the cold plate by using the cold plate gluing device based on the determined gluing amount of the area.

Preferably, the positions of the longitudinal movement positioning rod and/or the transverse movement positioning rod are moved, and different areas of the cold plate are glued until the gluing work of the cold plate is completed.

In a third aspect, the present invention further provides a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to perform the cold plate gluing method described above.

Through the technical scheme provided by the invention, the following beneficial effects are achieved:

the glue coating amount of different areas can be quickly and accurately regulated, the research and development time and cost are reduced, and the glue coating work of different schemes can be considered. The method provided by the invention can quickly optimize the temperature difference between the large and the cold plates, optimize the temperature difference of the battery pack to an optimal value, and reduce the research and development time and cost. The device and the method provided by the invention are simple and convenient, and are suitable for various gluing occasions.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a cold plate gluing device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a scale and a fixing button of a cold plate gluing device according to an embodiment of the invention;

FIG. 3 is a flow chart illustrating a cold plate gluing method according to an embodiment of the present invention;

FIG. 4 is a schematic design diagram of a cold plate gluing method according to an embodiment of the present invention;

FIG. 5 is a schematic view of the area division of a cold plate gluing method according to an embodiment of the present invention;

fig. 6 is a flowchart of an implementation of a cold plate gluing method according to an embodiment of the present invention.

Description of the reference numerals

1 frame 2 transverse moving positioning rod 3 longitudinal moving positioning rod

4 5 rotatory fixed buttons of scale 6 electricity cores

7 cold plate 8 square grid

Detailed Description

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Fig. 1 is a schematic structural diagram of a cold plate gluing device according to an embodiment of the present invention, as shown in fig. 1. A cold plate gluing device, the device comprising: a frame constituted by a slide rail; the two ends of the longitudinal movement positioning rod and the transverse movement positioning rod are connected with the sliding rail; the longitudinal moving positioning rod and the transverse moving positioning rod are used for dividing the cold plate to be glued into a plurality of areas according to the setting of a user; one or more of the zones are for selective application of glue by the user.

Therefore, a user can divide the cold plate into a plurality of areas by moving the longitudinal movement positioning rod and the transverse movement positioning rod in the frame, and one or more areas are selected for gluing operation, so that the gluing amount of the areas can be accurately regulated and controlled. Wherein, the frame of constituteing through the slide rail can enough realize the nimble removal of carriage release lever, can realize the relatively fixed of carriage release lever again to this accurate current rubber coating operation region of confirming.

In one embodiment, the frame has a shape that matches the shape of the cold plate. The common cold plate is rectangular, so that if the frame is rectangular and the frame is consistent with the cold plate in size, the moving times of the frame on the cold plate can be reduced, and errors caused by moving are reduced. When the shape of the cold plate is other shapes, the effect of reducing the movement error can be achieved by matching the shape and the size of the frame with the shape and the size of the cold plate.

Fig. 2 is a schematic view of a scale and a fixing button of a cold plate gluing device according to an embodiment of the invention, as shown in fig. 2. In one embodiment of the present invention, the frame is marked with scales, and the scales are used for identifying the positions of the longitudinal movement positioning rod and the transverse movement positioning rod. In fig. 2, the frame is shown with a number scale, and the frame is marked with numbers 0, 1, 2, 3 … in both the longitudinal and transverse directions. And scale marks are added on the frame, so that a user can conveniently determine the position of the current movable rod and accurately obtain a small area needing gluing operation.

In one embodiment of the present invention, the tightness between the longitudinal moving positioning rod and the frame and the tightness between the transverse moving positioning rod and the frame are adjusted by screw fixing knobs. As also shown in fig. 2, when the screw fixing knob is in a fastening state, the relative position between the movable positioning rod and the frame is fixed, so that the user can conveniently perform the gluing operation. When a user wants to change the position of the movable positioning rod, the movable positioning rod can be easily moved by loosening the spiral fixing knob.

Fig. 3 is a schematic flow chart of a cold plate gluing method according to an embodiment of the present invention, as shown in fig. 3. In an embodiment provided by the invention, a cold plate gluing method is also provided, and the method comprises the following steps: dividing a cold plate to be glued into a plurality of areas; obtaining the temperature field distribution of the cold plate through thermal simulation; and determining the gluing amount of each area based on the relation between the temperature of each area and the average temperature of the cold plate. Therefore, the whole heat allocation area of the cold plate is divided into a plurality of smaller energy allocation areas, and different area thermal resistances are adjusted for the small areas so as to realize the temperature uniformity of the whole cold plate. Fig. 4 is a schematic design diagram of a cold plate gluing method according to an embodiment of the present invention, where as shown in fig. 4, cells of a battery pack are long and closely arranged, an integrated large cold plate is disposed below the cells, and the cold plate dissipates heat by contacting with the cells. Because the size of the cold plate is large, and the flow channels are all positioned at the bottom of the battery core, the temperature is difficult to be balanced if a zoning method is not adopted. The embodiment avoids the problem of inconsistent thermal resistance caused by uniform gluing of the whole cold plate in a partition regulation mode. This embodiment has not only promoted the radiating temperature uniformity of electric core, and is still simple and convenient.

Fig. 5 is a schematic view illustrating the division of regions in a cold plate gluing method according to an embodiment of the present invention, as shown in fig. 5. The regions are closely adjacent squares of the same size. The surface of the cold plate is divided into grid-type squares, each small block is a heat allocation area, the contact thermal resistance is increased at a position with high temperature, the temperature at the position is reduced, the contact thermal resistance is reduced at a position with low temperature, the temperature at the position is increased, and the purpose of temperature balance is achieved by allocating heat flows of different areas.

Fig. 6 is a flowchart of an implementation of a cold plate gluing method according to an embodiment of the present invention, as shown in fig. 6. In one embodiment provided by the present invention, determining the glue spreading amount of each region based on the relationship between the temperature of the region and the average temperature of the cold plate includes: 1) judging whether the temperature field distribution of the cold plate meets the requirement of temperature difference; 2) if the temperature distribution does not meet the preset temperature range, adjusting the gluing amount of the area, and obtaining the temperature field distribution of the cold plate through thermal simulation again; 3) and repeating the steps 1) and 2) until the temperature field distribution of the cold plate meets the temperature difference requirement, and obtaining the gluing amount of the region. The temperature difference requirement here refers to a preset design requirement, for example, the difference between each region and the average temperature is in a certain range. Simulating temperature field distribution through thermal simulation software, obtaining thermal contact resistance corresponding to each divided area by adjusting the gluing amount, carrying out thermal simulation again on the adjusted gluing amount, repeating the steps until the temperature difference requirement is met, and finally obtaining the gluing distribution condition of the whole cold plate, wherein the gluing distribution condition can ensure the temperature uniformity of the cold plate in the heat dissipation process.

In an embodiment of the present invention, the adjusting the glue coating amount of the area includes: if the temperature variation of the area is larger than the average temperature variation of the cold plate, reducing the gluing amount of the area; and if the temperature variation of the area is smaller than the average temperature variation of the cold plate, increasing the gluing amount of the area. The specific method comprises the following steps: according to the thermal simulation result, the temperature difference of the whole system is judged, the average temperature is calculated, the thermal resistance is increased (namely the glue coating amount is reduced) for the area with high heat transfer rate by changing the heat transfer rate of different areas, the rate is further reduced, the heat allocation of different areas is realized, and the temperature difference balance is realized. And increasing the contact thermal resistance in the area lower than the average temperature variation and increasing the contact thermal resistance in the area higher than the average temperature variation, wherein the quantitative corresponding relation between the contact thermal resistance and the glue coating amount can be determined through an early experiment. The following steps of glue spreading adjustment under heating and cooling conditions are described respectively: when the cold plate is in the heating working condition: if the temperature variation of the area is larger than the average temperature variation of the cold plate, namely the temperature of the area is higher than the average temperature, the gluing amount of the area is reduced; and if the temperature variation of the area is smaller than the average temperature variation of the cold plate, namely the temperature of the area is lower than the average temperature, increasing the gluing amount of the area. In the cooling working condition, if the temperature of the area is lower than the average temperature, namely the variation of temperature reduction is larger than the average value, the gluing amount of the area is reduced; and if the temperature of the area is higher than the average temperature, namely the variation of the temperature reduction is smaller than the average value, increasing the gluing amount of the area.

In an embodiment provided by the present invention, the method further includes, based on the determined glue coating amount of the region, performing glue coating on the region corresponding to the cold plate by using the cold plate glue coating apparatus. The method for adjusting the gluing amount according to the divided region and the divided region heat allocation method in the method can quickly determine the distribution scheme of the thermal contact resistance of the cold plate, and further determine the gluing amount of each small-range region. By adopting the gluing device divided according to the areas, the single gluing operation area of the cold plate is kept consistent with the area in the cold plate gluing method by setting different positions of the movable positioning rod in the gluing device, so that the quick and accurate implementation of gluing simulation results is facilitated, and the consistency of the final gluing effect and simulation is also ensured.

In an embodiment provided by the present invention, the positions of the longitudinal movement positioning rod and/or the transverse movement positioning rod are moved to glue different areas of the cold plate until the gluing operation of the cold plate is completed. Different space sizes are formed by different positions of the movable positioning rod for gluing so as to ensure the completion of the gluing work of the whole cold plate. The space size is consistent with the size divided in the cold plate gluing method, so that the gluing amount can be conveniently controlled according to a simulated result. The cold plate coated with the glue by the method can achieve the refrigeration effect determined in the research and development process.

The method and the device provided by the embodiment of the invention can reduce the types of synchronous tools, optimize the temperature difference of the battery pack to an optimal value, shorten the research and development time and facilitate practical use.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.