Circulating heating device for new energy battery pack
By adopting a circulating heating device in the new energy battery pack, using a structure composed of guide plates and isolation strips, combined with heating tubes and liquid heating, the problem of battery performance degradation in low temperature environments is solved, and efficient and safe battery heating effects are achieved, extending battery life and reducing costs.
Patent Information
- Application Number
- CN202421657866.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-07-15
AI Technical Summary
When new energy battery packs operate in a low-temperature environment, the battery's charge transfer rate decreases and the chemical reaction slows down, resulting in a decrease in battery capacity and power output and a shortened service life.
The upper and lower structures are composed of the first and second heat energy guide plates, equipped with arc-shaped side plates and sealed connections between the side plates. An isolation strip and a heating tube are provided in the middle. Liquid is injected through the liquid filling port and heated evenly through the guide port. The heating tube heats the liquid to conduct heat, forming multiple small chambers to improve heating efficiency.
It achieves safe, reliable, energy-saving and environmentally friendly efficient heating, extends the service life of the battery pack and reduces costs.
Smart Images

Figure CN223347853U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile battery heating, and in particular to a circulating heating device for a new energy battery pack. Background Art
[0002] New energy battery packs are widely used in new energy vehicles, including pure battery vehicles and hybrid electric vehicles. Batteries are susceptible to aging when operated in low-temperature environments for extended periods. This reduces the battery's charge transfer rate and slows the chemical reactions within the battery, leading to a decrease in battery capacity and power output, reducing overall performance and shortening service life. Utility Model Content
[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a circulating heating device for a new energy battery pack.
[0004] According to the technical solution provided in the embodiment of the present application, a circulating heating device for a new energy battery pack includes a first heat conducting plate, a second heat conducting plate, an isolation strip, a heating pipe, a liquid filling port, and a power supply port. The first heat conducting plate and the second heat conducting plate are in an upper and lower structure and are arranged relatively spaced apart. The first heat conducting plate is provided with an arc-shaped side panel on the side, and the second heat conducting plate is provided with a side panel on the side. The interfaces between the arc-shaped side panels and the side panels are sealed. A hollow chamber is provided between the first heat conducting plate and the second heat conducting plate, and an isolation strip and a heating pipe are provided between the two. A liquid filling port is provided on one side of the arc-shaped side panel, and a power supply port is provided on one side of the side panel.
[0005] In the present invention, further, the outer side of the first heat conducting plate is provided with a downwardly concave placement groove, and the inner side is arranged according to the shape of the outer side concave.
[0006] In the present invention, further, the isolation strips are arranged at equal intervals between the first heat energy conducting plate and the second heat energy conducting plate, and the upper and lower ends are configured to be tightly fitted to the inner sides of the first heat energy conducting plate and the second heat energy conducting plate.
[0007] In the present invention, further, the isolation strip is provided with a plurality of guide ports, and the plurality of guide ports are arranged on the same horizontal line.
[0008] In the present invention, further, the heating tubes are fixedly connected to each other, and one end is connected to the power port, and the other end is fixed to the inner side of the side plate, and the heating tube is arranged on the guide port.
[0009] In the present invention, further, the inner diameter of the liquid filling port is provided with a liquid filling port blocking piece.
[0010] In summary, the beneficial effects of the present application are as follows: the first heat energy conducting plate and the second heat energy conducting plate of the device are arranged at intervals, the sides of the first heat energy conducting plate are provided with arc-shaped side plates, and the sides of the second heat energy conducting plate are provided with side plates, and the arc-shaped side plates are sealed with the connecting ports of the side plates to form a cavity that can be injected with liquid, and the first heat energy conducting plate and the second heat energy conducting plate are provided with isolation strips arranged at equal intervals between them, which can play the role of supporting the first heat energy conducting plate and the second heat energy conducting plate, and can also form several small chambers between the two, and inject a small amount of liquid to maximize heat conduction, and each isolation strip is provided with several guide ports to allow the liquid to communicate with each other, and the several guide ports are arranged on the same horizontal line, which is convenient for placing the heating pipe, and the heating pipes are connected to each other to evenly heat the liquid. The device is safe and reliable, energy-saving and environmentally friendly, efficient in heating, and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:
[0012] Figure 1 Schematic diagram of the structure for heating new energy batteries;
[0013] Figure 2 is a structural schematic diagram of the first heat energy conducting plate;
[0014] Figure 3 is a schematic structural diagram of the second heat energy conducting plate;
[0015] Figure 4 Schematic diagram of the structure of the isolation strip and the heating tube.
[0016] Numbers in the figure:
[0017] 1-first heat energy conducting plate; 10-placement groove; 11-arc-shaped side plate; 2-second heat energy conducting plate; 20-side plate; 3-isolation strip; 30-flow guide port; 4-heating tube; 5-liquid filling port; 50-liquid filling port plug; 6-power supply port. DETAILED DESCRIPTION
[0018] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.
[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0020] like Figure 1As shown, the present application discloses a circulating heating device for a new energy battery pack, which comprises a first heat conducting plate 1, a placement slot 10, an arcuate side plate 11, a second heat conducting plate 2, a side plate 20, an isolation strip 3, a flow guide 30, a heating pipe 4, a liquid filling port 5, a liquid filling port plug 50, and a power supply port 6. The first heat conducting plate 1 and the second heat conducting plate 2 are both integrally made of pure copper, which provides excellent thermal conductivity. A layer of antistatic film is also affixed to the first heat conducting plate 1 and the second heat conducting plate 2 to prevent static electricity generated during operation from affecting the battery, and to prevent leakage during use from affecting the battery.
[0021] The structure is as follows: the first heat conducting plate 1 is provided with curved side panels 11 on its side, and the second heat conducting plate 2 is provided with side panels on its side. The curved side panels 11 and side panels 20 are sealed against each other to prevent leakage of the internal liquid. The first heat conducting plate 1 has an inwardly concave placement groove 10 on its top, into which the battery pack can be placed, providing a certain degree of stability. A separator 3 is disposed between the first and second heat conducting plates 1 and 2. Several flow guides 30 are provided on the separator 3, and these flow guides 30 are arranged on the same horizontal line. These flow guides 30 allow the internal liquid to circulate and also allow the heating tubes 4 to be positioned, ensuring uniform distribution and accelerating heating of the liquid. A liquid filling port 5 is provided on one side of the curved side panel 11, allowing liquid to enter through the filling port 5. After liquid is filled, the filling port 5 can be sealed, so a liquid filling port plug 50 is provided on the filling port 5. A power supply port 6 is provided on the side panel 20, one end of which is connected to the heating tube 4 to heat it.
[0022] In this solution, the liquid used is preferably lipid, which has low corrosiveness to metallic copper and has little impact on the battery even if it leaks.
[0023] High-temperature resistant sealing rings are used for sealing at each connection. The product is controlled by the car's control center and the heating will stop when the temperature reaches 60-70 degrees.
[0024] The above description is merely an illustration of the preferred embodiments of this application and the technical principles employed. Furthermore, the scope of the utility model disclosed in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features. It also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A circulating heating device for a new energy battery pack, comprising a first heat conducting plate (1), a second heat conducting plate (2), an isolation strip (3), a heating tube (4), a liquid filling port (5), and a power supply port (6), wherein: The first heat conducting plate (1) and the second heat conducting plate (2) are in an upper and lower structure and are arranged with a relative interval. The first heat conducting plate (1) is provided with an arc-shaped side plate (11) on the side, and the second heat conducting plate (2) is provided with a side plate (20) on the side. The interface between the arc-shaped side plate (11) and the side plate (20) is sealed. A hollow chamber is provided between the first heat conducting plate (1) and the second heat conducting plate (2), and an isolation strip (3) and a heating pipe (4) are provided between the two. A liquid filling port (5) is provided on one side of the arc-shaped side plate (11), and an electric power port (6) is provided on one side of the side plate (20).
2. The circulating heating device for a new energy battery pack according to claim 1 is characterized in that: The outer side of the first heat conducting plate (1) is provided with a downwardly recessed placement groove (10), and the inner side is arranged according to the shape of the recess on the outer side.
3. The circulating heating device for a new energy battery pack according to claim 1 is characterized in that: The isolation strips (3) are arranged at equal intervals between the first heat conducting plate (1) and the second heat conducting plate (2), and the upper and lower ends are configured to be tightly fitted to the inner sides of the first heat conducting plate (1) and the second heat conducting plate (2).
4. The circulating heating device for a new energy battery pack according to claim 3 is characterized in that: The isolation strip (3) is provided with a plurality of flow guide openings (30), and the plurality of flow guide openings (30) are arranged on the same horizontal line.
5. The circulating heating device for a new energy battery pack according to claim 1 is characterized in that: The heating tubes (4) are fixedly connected to each other, one end of which is connected to the power port (6) and the other end of which is fixed to the inner side of the side plate (20). The heating tubes are arranged on the guide port (30).
6. The circulating heating device for a new energy battery pack according to claim 1 is characterized in that: The inner diameter of the liquid filling port (5) is provided with a liquid filling port blocking piece (50).