Heating curing device

Abstract

The utility model belongs to the technical field of power batteries, and particularly discloses a heating curing device which comprises a circulating pump, a heater and a circulating heating flow path, the circulating heating flow path comprises a first pipeline and a second pipeline; the heater and the circulating pump are respectively connected with the fluid pipeline through a first pipeline and a second pipeline; the circulating pump, the heater, the circulating heating flow path and the fluid pipeline form a loop, the circulating pump pumps fluid to the fluid pipeline through the circulating heating flow path, so that the fluid can continuously flow through the fluid pipeline, and when the heated fluid flows through the fluid pipeline, heat can be transferred to the liquid cooling plates, so that the temperature of the plurality of liquid cooling plates is uniformly increased; therefore, glue layers, in contact with the battery cells, of all the liquid cooling plates are synchronously accelerated to be cured, the situation that glue on the two sides of the liquid cooling plates in the middle of the battery module cannot be heated to be accelerated to be cured is avoided, and the glue curing time of the whole battery module is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, in particular to a heating and curing device. Background Art

[0002] With the continuous development of the electric vehicle market, competition in charging technology is becoming increasingly fierce. DC fast charging is the most common method for charging electric vehicles. However, as charging power increases, heat generated in the charging circuit also increases, leading to a decrease in battery efficiency and lifespan. Therefore, during fast, high-power charging, measures are needed to reduce heat loss and ensure battery heat dissipation and stability.

[0003] Liquid cooling plates have been widely used in electric vehicle designs to dissipate heat more efficiently. Typically, battery cells and liquid cooling plates are assembled in a stacked structure, and the conventional method is to glue them together to enhance heat dissipation. However, when multiple batteries are assembled into a module, the central liquid cooling plate cannot be heated and cured, requiring only room temperature. This results in a prolonged curing time for the glue on both sides of the liquid cooling plate in the middle of the battery, affecting processing efficiency and significantly impacting production schedules. Utility Model Content

[0004] The purpose of the utility model is to provide a heating and curing device to solve the technical problem in the prior art that the curing time of the glue on the liquid cooling plate side in the middle of the battery is too long, which affects the processing efficiency.

[0005] To achieve the above-mentioned object, the present invention provides a heating and curing device for heating and curing glue in a power battery module during production. The power battery module includes a liquid cooling plate and a plurality of battery cells. The plurality of battery cells are bonded to the liquid cooling plate by glue. A fluid pipeline is provided in the liquid cooling plate. The heating and curing device includes:

[0006] Circulation pump, heater and circulation heating flow path;

[0007] The circulating pump is connected to the heater;

[0008] The circulating heating flow path includes a first pipe and a second pipe; the heater is connected to one end of the fluid pipeline through one of the first pipe and the second pipe, and is used to heat the fluid; the circulating pump is connected to the other end of the fluid pipeline through the other of the first pipe and the second pipe;

[0009] The circulation pump, the heater, the circulation heating flow path and the fluid pipeline form a loop, and the circulation pump pumps the fluid to the fluid pipeline through the circulation heating flow path.

[0010] Preferably, there are multiple fluid pipelines, and the circulating heating flow path is connected in series with the multiple fluid pipelines.

[0011] Preferably, there are multiple fluid pipelines, and the circulating heating flow path is connected to the multiple fluid pipelines respectively, and the multiple fluid pipelines are connected in parallel.

[0012] Preferably, the first pipeline and / or the second pipeline is provided with a heating circulation section and a liquid cooling plate connecting section; the inlet of the heating circulation section is connected to the outlet of the liquid cooling plate connecting section, and the outlet of the heating circulation section is connected to the inlet of the liquid cooling plate connecting section; the heater and the circulation pump are connected to the heating circulation section, and the liquid cooling plate connecting section is connected to the fluid pipeline of the liquid cooling plate.

[0013] Preferably, there are multiple liquid cooling plates, and each liquid cooling plate has the fluid pipeline. The fluid pipelines of adjacent liquid cooling plates are connected through the liquid cooling plate connecting sections, and the number of the liquid cooling plate connecting sections is at least four.

[0014] Preferably, the system further comprises: a fluid container, the fluid container is connected to the heating cycle section, and the heater is arranged in the fluid container.

[0015] Preferably, the outlet of the fluid container is connected to the inlet of the circulation pump.

[0016] Preferably, a first connecting joint for connecting to the circulating heating flow path is provided at the inlet of the fluid pipeline.

[0017] Preferably, a second connecting joint for connecting to the circulating heating flow path is provided at the outlet of the fluid pipeline.

[0018] Preferably, the circulating heating flow path is provided with a temperature control device, and the temperature control device is used to control the heater to stop working when the temperature of the fluid in the fluid pipeline reaches a preset value.

[0019] The power battery module glue heating and curing device provided by the present invention has the following beneficial effects: the circulating pump provides power for the circulating heating flow path and the fluid in the fluid pipeline, so that the fluid can continuously flow through the fluid pipeline of the liquid cooling plate, and the heater is used to heat the fluid in the circulating heating flow path. When the heated fluid flows through the fluid pipeline of the liquid cooling plate, the heat can be transferred to the liquid cooling plate, thereby evenly increasing the temperature of multiple liquid cooling plates, so that the glue layers in contact with the battery cells of all liquid cooling plates can be accelerated to cure synchronously, and the glue on both sides of the liquid cooling plate in the middle of the battery module will not be unable to be heated and accelerated to cure, thereby reducing the glue curing time of the entire battery module, improving the processing efficiency of the battery module, and improving the production efficiency of the battery module.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the pipeline connection structure when the power battery module glue heating and curing device and the fluid pipeline of the liquid cooling plate are connected in series;

[0022] Figure 2 This is a schematic diagram of the pipeline connection structure when the power battery module glue heating and curing device is connected in parallel with the fluid pipeline of the liquid cooling plate in an embodiment of the utility model.

[0023] In the figure, 100, liquid cooling plate; 110, first connecting joint; 120, second connecting joint; 200, battery cell accommodating space; 300, circulation pump; 400, heater; 500, circulating heating flow path; 501, first pipeline; 502, second pipeline; 510, heating circulation section; 520, liquid cooling plate connecting section; 600, fluid container. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0026] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Please also refer to Figures 1 to 2 , the power battery module glue heating and curing device provided by the embodiment of the utility model is now described.

[0029] Reference Figure 1 The power battery module glue heating and curing device of the embodiment of the utility model is used to heat and cure the glue of the power battery module, wherein the power battery module includes a liquid cooling plate 100, and the power battery module also includes a plurality of battery cells, and the battery cells are fixed to the liquid cooling plate 100 by gluing, and a fluid pipeline is provided in the liquid cooling plate 100.

[0030] The power battery module can include only one liquid cooling plate, for example, liquid cooling on the bottom of the battery cell; or it can include multiple liquid cooling plates 100, for example, liquid cooling on the side of the battery cell, with a battery cell accommodating space 200 formed between two adjacent liquid cooling plates 100. A fluid pipeline is provided in the liquid cooling plate 100, with a fluid inlet and a fluid outlet at both ends of the fluid pipeline respectively. In this embodiment, the number of liquid cooling plates 100 is 3, so as to bond two rows of battery cells. Figure 1 shown.

[0031] The power battery module glue heating and curing device includes: a circulation pump 300, a heater 400, and a circulation heating flow path 500;

[0032] In which, the circulating pump 300 is connected to the heater 400, and the circulating heating flow path 500 includes a first pipe 501 and a second pipe 502, wherein the end of the circulating pump 300 not connected to the heater 400 is connected to the fluid pipeline through one of the first pipe 501 and the second pipe 502, and the end of the heater 400 not connected to the circulating pump 300 is connected to the other end of the fluid pipeline through the other of the first pipe 501 and the second pipe 502.

[0033] The heater 400 is used to heat the fluid in the circulating heating flow path 500. The circulating pump 300, the heater 400, the circulating heating flow path 500 and the fluid pipeline form a loop. The circulating pump 300 pumps the fluid to the fluid pipeline through the circulating heating flow path 500.

[0034] In this embodiment, see Figure 1 The first pipe 501 is on the left side of the circulation pump 300, and is respectively connected to one end of the circulation pump 300 and the inlet end of the fluid pipeline; the second pipe 502 is on the right side of the heater 400, and is respectively connected to one end of the heater 400 and the outlet end of the fluid pipeline. The fluid circulation direction is counterclockwise, that is, the circulation pump 300 is located downstream of the heater 400.

[0035] In other embodiments, the circulation direction may be reversed, and the positions of the first pipe 501 and the second pipe 502 may be swapped.

[0036] The fluid flowing in the circulating heating flow path 500 of this embodiment is water. In addition, it can also be other heat media, such as inert gas, oil, etc.

[0037] The circulation pump 300 provides power for the circulating heating flow path 500 and the fluid in the fluid pipeline, so that the fluid can flow continuously through the fluid pipeline of the liquid cooling plate 100, and the heater 400 is used to heat the fluid in the circulating heating flow path 500. When the heated fluid flows through the fluid pipeline of the liquid cooling plate 100, it can transfer heat to the liquid cooling plate 100, thereby evenly increasing the temperature of multiple liquid cooling plates 100, so that the glue layer in contact with all liquid cooling plates 100 and the battery cells can be accelerated to solidify synchronously, and the glue on both sides of the liquid cooling plate 100 in the middle of the battery module cannot be heated and accelerated to solidify, thereby reducing the glue curing time of the entire battery module, improving the battery module processing efficiency, and improving the production efficiency of the battery module.

[0038] In some embodiments of the present invention, referring to Figure 1 The circulating heating circuit 500 is connected in series with multiple fluid pipelines. Specifically, the circulating pump 300, heater 400, circulating heating circuit 500, and fluid pipelines form a single-line loop. The heated fluid then flows sequentially through the fluid pipelines of multiple liquid cooling plates 100, heating the liquid cooling plates 100 and accelerating the curing of the glue on both sides of the liquid cooling plates 100. This series loop simplifies piping connections and facilitates easy connection by the operator.

[0039] In some embodiments of the present invention, referring to Figure 2 The circulating heating flow path 500 is connected to multiple fluid pipelines respectively, and the multiple fluid pipelines are connected in parallel, which can ensure that the temperature of the fluid flowing into each fluid pipeline is basically the same, making the temperature of each liquid cooling plate 100 more uniform, which is more conducive to the synchronous curing of the glue of the battery module.

[0040] In some embodiments of the present invention, referring to Figure 1 and Figure 2The first pipe 501 and / or the second pipe 502 of the circulating heating flow path 500 include a heating circulation section 510 and a liquid cooling plate connecting section 520, wherein the inlet of the heating circulation section 510 is connected to the outlet of the liquid cooling plate connecting section 520, or the outlet of the heating circulation section 510 is connected to the inlet of the liquid cooling plate connecting section 520; the heater 400 and the circulating pump 300 are connected to the heating circulation section 510, and the liquid cooling plate connecting section 520 is connected to the fluid pipeline of the liquid cooling plate 100. In other words, the pipeline connected to the liquid cooling plate 100 is the liquid cooling plate connecting section 520, and the heating circulation section 510 is used to connect to the heater 400 and the circulating pump 300, and provide fluid to the liquid cooling plate connecting section 520 and the fluid pipeline of the liquid cooling plate 100. The number of liquid cooling plate connecting sections 520 varies depending on the number of liquid cooling plates 100, and in most cases, there are two heating circulation sections 510.

[0041] In some embodiments of the present invention, the number of the liquid cooling plate connecting sections 520 is at least four. That is, the corresponding liquid cooling plates 100 are at least three. When the three liquid cooling plates 100 are arranged at intervals, it is easy for the liquid cooling plate 100 in the middle to not be directly heated. Figure 1 , four liquid cooling plate connecting sections 520 can realize the series connection of three liquid cooling plates 100 , so as to better reflect the advantages of the power battery module glue heating and curing device of this embodiment.

[0042] In some embodiments of the present invention, the power battery module glue heating and curing device further includes: a fluid container 600, which is connected to the heating circulation section 510, and a heater 400 disposed within the fluid container 600. The heater 400 is an electric heater 400, and the fluid container 600 is used to carry and store fluid. The heater 400 is used to heat the fluid within the fluid container 600, and the circulating pump 300 is used to pump the fluid within the fluid container 600 into the heating circulation section 510. The provision of the fluid container 600 allows the fluid to heat within the fluid container 600 for sufficient time, thereby controlling the fluid temperature.

[0043] In some embodiments of the present invention, the outlet of the fluid container 600 is connected to the inlet of the circulation pump 300, so that the circulation pump 300 can better pump the fluid in the fluid container 600 into the heating circulation section 510, providing sufficient power for the fluid to be input into the fluid pipeline of the liquid cooling plate 100.

[0044] In some embodiments of the present invention, a first connector 110 is provided at the inlet of the fluid pipeline for connection to the circulating heating circuit 500. The first connector 110 is used to facilitate the connection of the circulating heating circuit 500 to the fluid pipeline, facilitate pipeline connection, and facilitate the operator to connect the pipeline. Similarly, based on the above, a second connector 120 is provided at the outlet of the fluid pipeline for connection to the circulating heating circuit 500, to facilitate the connection of the circulating heating circuit 500 to the fluid pipeline, facilitate pipeline connection, and facilitate the operator to connect the pipeline.

[0045] In some embodiments of the present invention, the circulating heating flow path 500 is provided with a temperature control device (not shown). The temperature control device comprises a thermometer and a controller, which is electrically connected to the heater 400. The thermometer is used to detect the temperature of the fluid in the fluid pipeline in real time and feed the temperature back to the controller. The controller compares the real-time fluid temperature with a preset fluid temperature. If the real-time fluid temperature is lower than the preset fluid temperature, the heater 400 is activated; if the real-time fluid temperature is equal to or higher than the preset fluid temperature, the heater 400 is deactivated.

[0046] In summary, the circulating pump 300 of this embodiment provides power for the circulating heating flow path 500 and the fluid in the fluid pipeline, so that the fluid can flow continuously through the fluid pipeline of the liquid cooling plate 100 of the power battery module, and the heater 400 is used to heat the fluid in the circulating heating flow path 500. When the heated fluid flows through the fluid pipeline of the liquid cooling plate 100, the heat can be transferred to the liquid cooling plate 100, thereby evenly increasing the temperature of multiple liquid cooling plates 100, so that the glue layer in contact with all liquid cooling plates 100 and the battery cells is synchronously accelerated to solidify, and the glue on both sides of the liquid cooling plate 100 in the middle of the battery module cannot be heated and accelerated to solidify, thereby reducing the glue curing time of the entire battery module, improving the battery module processing efficiency, and improving the production efficiency of the battery module.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A heating and curing device for heating and curing glue in a power battery module during production, wherein the power battery module comprises a liquid cooling plate (100) and a plurality of battery cells, wherein the plurality of battery cells are bonded to the liquid cooling plate (100) by glue, and a fluid pipeline is provided in the liquid cooling plate (100); It is characterized by: The heating and curing device comprises: A circulating pump (300), a heater (400) and a circulating heating flow path (500); The circulation pump (300) is connected to the heater (400); The circulating heating flow path (500) comprises a first pipe (501) and a second pipe (502); the heater (400) is connected to one end of the fluid pipeline through one of the first pipe (501) and the second pipe (502) and is used to heat the fluid; the circulating pump (300) is connected to the other end of the fluid pipeline through the other of the first pipe (501) and the second pipe (502); The circulation pump (300), the heater (400), and the circulating heating flow path (500) are used to form a loop with the fluid pipeline, and the circulation pump (300) is used to pump the fluid to the fluid pipeline through the circulating heating flow path (500).

2. The heating and curing device according to claim 1, characterized in that: There are a plurality of fluid pipelines, and the circulating heating flow path (500) is connected in series with the plurality of fluid pipelines.

3. The heating and curing device according to claim 1, characterized in that: There are a plurality of fluid pipelines, and the circulating heating flow path (500) is connected to the plurality of fluid pipelines respectively, and the plurality of fluid pipelines are connected in parallel.

4. The heating and curing device according to claim 1, characterized in that: The first pipe (501) and / or the second pipe (502) are provided with a heating circulation section (510) and a liquid cooling plate connecting section (520); the inlet of the heating circulation section (510) is connected to the outlet of the liquid cooling plate connecting section (520), or the outlet of the heating circulation section (510) is connected to the inlet of the liquid cooling plate connecting section (520); the heater (400) and the circulating pump (300) are connected to the heating circulation section (510), and the liquid cooling plate connecting section (520) is used to be connected to the fluid pipeline of the liquid cooling plate (100).

5. The heating and curing device according to claim 4, characterized in that: There are multiple liquid cooling plates (100), and each liquid cooling plate (100) has the fluid pipeline. The fluid pipelines of adjacent liquid cooling plates (100) are connected through the liquid cooling plate connecting sections (520), and the number of the liquid cooling plate connecting sections (520) is at least four.

6. The heating and curing device according to claim 4, characterized in that: Also includes: A fluid container (600) is connected to the heating cycle section (510), and the heater (400) is arranged in the fluid container (600).

7. The heating and curing device according to claim 6, characterized in that: The outlet of the fluid container (600) is connected to the inlet of the circulation pump (300).

8. The heating and curing device according to claim 1, characterized in that: A first connection joint (110) for connecting to the circulating heating flow path (500) is provided at the inlet of the fluid pipeline.

9. The heating and curing device according to claim 8, characterized in that: A second connection joint (120) for connecting to the circulating heating flow path (500) is provided at the outlet of the fluid pipeline.

10. The heating and curing device according to claim 1, characterized in that: The circulating heating flow path (500) is provided with a temperature control device, and the temperature control device is used to control the heater (400) to stop working when the temperature of the fluid in the fluid pipeline reaches a preset value.

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