Nonmetal heat transfer plate and forming process thereof
The heat transfer plate is prepared by shaping the non-metallic material, combined with the runner surface design and metal embedding, which solves the heat loss, replacement difficulties and corrosion problems of the metal heat transfer plate, and achieves a lower cost and high-performance heat transfer effect.
Patent Information
- Application Number
- CN202411299190.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2024-12-27
AI Technical Summary
In actual use, metal heat transfer plates have problems such as heat loss, difficulty in replacement, easy corrosion, and high practical cost.
A heat transfer plate is prepared through a shaping process using non-metallic materials, a groove is designed at the bottom to form a flow path surface for the flow medium to flow, and is fixed by connecting processes such as laser welding, and part of which is embedded in metal materials to enhance strength.
It solves the heat loss, replacement difficulties and corrosion problems of metal heat transfer plates, reduces maintenance and production costs, and improves maintainability and performance.
Smart Images
Figure CN119189373A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of heat transfer plate preparation, in particular to a non-metallic heat transfer plate and a forming process thereof. Background Art
[0002] In the existing technical solutions, the heat exchange between the metal plate and the environment is very serious. The main function of the heat transfer plate is to realize the mutual transfer of heat between various parts through itself. In addition to the heat transfer of key parts, the metal plate will also produce very serious heat exchange with the environment, reducing the heat transfer of key parts and weakening the heat exchange capacity; for example, in a heat transfer plate made of metal, the power battery pack will quickly dissipate heat through the metal heat transfer plate and the external environment in a low temperature environment, reducing the performance of the battery pack.
[0003] Secondly, the use of metal heat transfer plates is disadvantageous in terms of the maintainability of the power battery pack. Once the bottom is damaged, the entire power battery pack needs to be replaced, and the metal heat transfer plate has a long processing and mold development process and high costs. In addition, the metal heat transfer plate will corrode with the surrounding environment during long-term use. Summary of the invention
[0004] The purpose of the present invention is to provide a non-metallic heat transfer plate and a forming process thereof, which can solve the problems of heat loss, difficulty in replacement, easy corrosion and high practical cost of metal heat transfer plates in actual use.
[0005] To achieve the above object, the present invention provides the following solutions:
[0006] A non-metallic heat transfer plate forming process comprises: shaping a non-metallic material to obtain a non-metallic heat transfer plate; the bottom of the non-metallic heat transfer plate has a flow channel surface formed by grooves; the flow channel surface is used to enable a flowing medium to flow in the grooves.
[0007] Optionally, the shaping process includes hot stamping, thermoforming or blow molding.
[0008] Optionally, the non-metallic material includes PU, BMC / SMC, ABS, PC, PE, PVC, PP, POM, PA or a composite material.
[0009] Optionally, during the shaping, the back side of the non-metallic heat transfer plate is formed into a thin plate member or a non-thin plate member.
[0010] Optionally, when the back side of the non-metallic heat transfer plate adopts the thin plate member, the concave-convex conditions of the flow channel surface and the non-flow channel surface are opposite.
[0011] Optionally, when the back side of the non-metallic heat transfer plate adopts the non-thin plate member, the bottom of the flow channel surface and the non-flow channel surface are on the same horizontal line.
[0012] Optionally, the top of the non-metallic heat transfer plate is a flat plate, which is fixed to the flow channel surface by a set connection process; the set connection process includes laser welding, hot pressing, high-frequency welding, induction welding or bonding.
[0013] Optionally, during the shaping, a portion of the bottom of the non-metallic heat transfer plate is embedded with metal material.
[0014] The present invention also provides a non-metallic heat transfer plate, comprising: a flat plate and a flow channel plate; the flow channel plate has a flow channel surface formed by grooves; the flow channel surface is used to enable a flowing medium to flow in the grooves.
[0015] Optionally, the flat plate is a metal plate or a non-metal plate.
[0016] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:
[0017] The present invention discloses a heat transfer plate and a molding process thereof, wherein the process comprises molding a non-metallic material to obtain a non-metallic heat transfer plate; the bottom of the non-metallic heat transfer plate has a flow channel surface formed by grooves; the flow channel surface is used to enable a flowing medium to flow in the grooves. The present invention can solve the problems of heat loss, difficulty in replacement, easy corrosion and high practical cost of metal heat transfer plates in actual use. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0019] Figure 1 This is a schematic diagram of the structure of a non-metallic heat transfer plate formed in an embodiment of the present invention;
[0020] Figure 2 It is a structural diagram of the second embodiment of the present invention.
[0021] Reference numerals: 1. non-metallic heat transfer plate; 2. flow channel surface; 3. non-flow channel surface. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0023] The purpose of the present invention is to provide a non-metallic heat transfer plate and a forming process thereof, which can solve the problems of heat loss, difficulty in replacement, easy corrosion and high practical cost of metal heat transfer plates in actual use.
[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0025] Since the current heat transfer plate has the functions of cooling and heating, it also has a certain structural strength, which is usually shared by the flat plate and the heat transfer plate; such a solution has obvious disadvantages, because the heat transfer plate is made of metal:
[0026] 1. The thermal insulation capacity is relatively poor in low temperature environments. The metal heat transfer plate will dissipate a large amount of heat with the air at the bottom, which is not conducive to the thermal insulation of the battery pack.
[0027] 2. The heat transfer plate is usually arranged at the bottom of the battery pack. It is inevitable that the vehicle will collide or bump with hard objects on the ground during driving, and the heat transfer plate will inevitably be damaged. Once the metal heat transfer plate is damaged, it may endanger the power battery. If the heat transfer plate is damaged and cannot be repaired, it can only be replaced along with the battery pack, which brings a very high replacement cost, usually up to more than 100,000 yuan.
[0028] 3. The heat transfer plate obtained by cold stamping of metal flat plate usually has a high cost, which is about 25 yuan / kg. In addition, there are development costs such as molds that can reach millions.
[0029] 4. Among the problems currently reported by the after-sales market, the corrosion of the heat transfer plate is the most serious problem. The main reason is the electrochemical corrosion between the aluminum heat transfer plate and the environment or other metal parts, which causes the heat transfer plate to fail. Currently, this problem has occurred in the operation of vehicles of many OEMs, and the corrosion problem of the heat transfer plate has not been well solved.
[0030] Therefore, the present invention provides a non-metallic heat transfer plate 1 forming process, comprising: shaping a non-metallic material to obtain a non-metallic heat transfer plate 1; the bottom of the non-metallic heat transfer plate 1 has a flow surface 2 formed by a groove; the flow surface 2 is used to enable the flowing medium to flow in the groove.
[0031] The molding process used for shaping includes hot stamping, hot forming or blow molding. The non-metallic material includes PU, BMC / SMC, ABS, PC, PE, PVC, PP, POM, PA or composite materials.
[0032] As a specific implementation manner, during the shaping, the back side of the non-metallic heat transfer plate 1 is formed into a thin plate member or a non-thin plate member.
[0033] When the back side of the non-metallic heat transfer plate 1 adopts the thin plate member, the concave and convex conditions of the flow channel surface 2 and the non-flow channel surface 3 are opposite; when the back side of the non-metallic heat transfer plate 1 adopts the non-thin plate member, the bottoms of the flow channel surface 2 and the non-flow channel surface 3 are on the same horizontal line.
[0034] As a specific implementation, the top of the non-metallic heat transfer plate 1 is a flat plate, which is fixed to the flow channel surface through a set connection process and used in conjunction with it. The set connection process includes laser welding, hot pressing, high-frequency welding, induction welding or bonding.
[0035] As a further technical solution, in the non-metallic heat transfer plate 1, a part of embedded metal material can be added to the bottom heat transfer plate. During the molding process of the non-metallic heat transfer plate, the metal material and the non-metallic material are molded together to form a heat transfer plate with a stable structure, thereby enhancing the strength of the cold plate.
[0036] The present invention also provides a non-metallic heat transfer plate, comprising: a flat plate and a flow channel plate; the flow channel plate has a flow channel surface formed by grooves; the flow channel surface is used to enable the flow medium to flow in the grooves. The flat plate is a metal plate or a non-metal plate.
[0037] Based on the above technical solution, an embodiment 1 as shown below is provided.
[0038] This embodiment uses non-metallic materials. Through a specific process, the non-metallic materials have the appearance characteristics of the heat transfer plate, so that the medium can flow inside the non-metallic heat transfer plate 1 and have certain flow properties. The back of the non-metallic heat transfer plate 1 adopts a thin plate. The non-metallic materials that can be used in this solution include but are not limited to PU, BMC / SMC, ABS, PC, PE, PVC, PP, POM, PA and composite materials.
[0039] The forming process for the non-metallic heat transfer plate 1 includes but is not limited to hot stamping, hot forming, blow molding and the like; the welding process for the non-metallic heat transfer plate 1 includes but is not limited to laser welding, hot pressing, high frequency welding, induction welding, bonding and the like.
[0040] In this embodiment, the application of the non-metallic material heat transfer plate is to use non-metallic materials to replace the metal material heat transfer plate to achieve material replacement; in the manufacturing process, the molding process can be selected according to the specific material used.
[0041] The general process of the technical solution for forming the non-metallic heat transfer plate 1 is as follows:
[0042] 1. Design stage: Design the direction and dimensions of the flow channel such as length, width and height to meet the performance and function requirements of the battery pack and the requirements of the heat transfer plate;
[0043] 2. Process forming evaluation stage: through the design scheme of the non-metallic heat transfer plate 1, select the appropriate material and forming process, and conduct a feasibility analysis of the process forming;
[0044] 3. Final processing stage: mainly includes sample generation, test verification, etc., which is used to determine whether the quality data of the non-metallic heat transfer plate 1 sample meets the standards.
[0045] As a part different from the first embodiment, a second technical solution is constructed as the second embodiment: on the basis of the first embodiment, the back side of the non-metallic heat transfer plate 1 is changed from a thin plate member to a non-thin plate member, such as Figure 2 As shown, the non-flow channel surface 3 can be fully filled to form a plane, and the size of the plane and the flow channel surface 2 is not explicitly required and is determined according to actual performance requirements.
[0046] As a part different from the first and second embodiments, a third technical solution is constructed as the third embodiment: some circular / other shaped cavities or holes can be added to the flat plate, and the flow channel surface 2 can fill the material into the cavities of the flat plate during the molding process to increase the fixing strength.
[0047] As a part different from the first, second and third embodiments, a fourth technical solution is constructed as the fourth embodiment: during the molding process of the flow channel surface 2, a part of metal material can be added to the non-metallic material to further increase the strength of the non-metallic material.
[0048] Therefore, it can be seen from the above that the present invention has the following beneficial effects:
[0049] The use of metal heat transfer plates is disadvantageous in terms of the maintainability of the power battery pack. Once the bottom is damaged, the entire power battery pack needs to be replaced. When using non-metallic heat transfer plates / heat exchange plates, only the non-metallic heat transfer plates need to be replaced, and the replacement and maintenance costs are extremely low, which is out of the customized after-sales maintenance model.
[0050] Furthermore, the metal heat transfer plate has a long processing cycle and high cost in the mold development process, and the metal heat transfer plate will corrode with the surrounding environment during long-term use. However, the use of non-metallic heat transfer plates can effectively avoid these problems.
[0051] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0052] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A non-metallic heat transfer plate forming process, characterized in that: include: The non-metallic material is shaped to obtain a non-metallic heat transfer plate; the bottom of the non-metallic heat transfer plate has a flow channel surface formed by grooves; The flow channel surface is used to enable the flow medium to flow in the groove.
2. The non-metallic heat transfer plate forming process according to claim 1, characterized in that: The shaping process includes hot stamping, hot forming or blow molding.
3. The non-metallic heat transfer plate forming process according to claim 1, characterized in that: The non-metallic material includes PU, BMC / SMC, ABS, PC, PE, PVC, PP, POM, PA or a composite material.
4. The non-metallic heat transfer plate forming process according to claim 1, characterized in that: In the shaping, the back side of the non-metallic heat transfer plate is formed into a thin plate member or a non-thin plate member.
5. The non-metallic heat transfer plate forming process according to claim 4, characterized in that: When the back side of the non-metallic heat transfer plate adopts the thin plate member, the concave-convex conditions of the flow channel surface and the non-flow channel surface are opposite.
6. The non-metallic heat transfer plate forming process according to claim 4, characterized in that: When the back side of the non-metallic heat transfer plate adopts the non-thin plate member, the bottom of the flow channel surface and the non-flow channel surface are on the same horizontal line.
7. The non-metallic heat transfer plate forming process according to claim 1, characterized in that: The top of the non-metallic heat transfer plate is a flat plate, which is fixed to the flow channel surface by a set connection process; the set connection process includes laser welding, hot pressing, high-frequency welding, induction welding or bonding.
8. The non-metallic heat transfer plate forming process according to claim 1, characterized in that: In the shaping, a portion of the bottom of the non-metallic heat transfer plate is embedded with metal material.
9. A non-metallic heat transfer plate, characterized in that: The invention comprises: a flat plate and a flow channel plate; the flow channel plate is provided with a flow channel surface formed by grooves; the flow channel surface is used for enabling the flowing medium to flow in the grooves.
10. The non-metallic heat transfer plate according to claim 9, characterized in that: The flat plate is a metal plate or a non-metal plate.