New energy battery tray end plate multi-stage water channel structure

Abstract

The utility model discloses a new energy battery tray end plate multistage water channel structure, which relates to the technical field of new energy battery trays and comprises a battery tray, secondary cooling pipelines and primary cooling pipelines, the longitudinal primary cooling pipelines are transversely and equidistantly arranged at the bottom of the battery tray, and the secondary cooling pipelines are transversely and equidistantly arranged at the bottom of the battery tray. A transverse liquid inlet and outlet pipeline is arranged at the bottom of the front side of the battery tray, the middle of the liquid inlet and outlet pipeline is divided into a liquid return cavity on the left side and a liquid feeding cavity on the right side through a middle partition plate, and the liquid feeding cavity is communicated with the front end of a first-stage cooling pipeline corresponding to the rear side of the liquid feeding cavity through an inlet hole formed in the rear side of the liquid inlet and outlet pipeline. The liquid return cavity is communicated with the front end of the primary cooling pipeline corresponding to the rear side of the liquid return cavity through an outlet hole formed in the rear side of the liquid inlet and outlet pipeline. According to the new energy battery tray end plate multi-stage water channel structure, the rear end face of a new energy battery pack can be cooled, the effect of more uniform temperature control is achieved, and the heat dissipation and cooling effect of the new energy battery pack is improved and optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy battery trays, in particular to a multi-level water channel structure of an end plate of a new energy battery tray. Background Art

[0002] The development of new energy vehicles can make better use of electricity resources, reduce dependence on oil, control exhaust emissions, and protect the environment. The new energy batteries of new energy vehicles need to be installed on new energy vehicles with the help of new energy battery trays. During the charging and discharging process of new energy battery packs, chemical energy is converted into electrical energy, and then electrical energy is converted into kinetic energy. Since the conversion of energy will generate heat energy, when the heat energy cannot be released in time, the temperature around the battery will rise, thereby affecting the physical stability of the battery and reducing its performance.

[0003] Therefore, the new energy battery tray requires a cooling system to cool the new energy battery pack inside it. By introducing coolant into the new energy battery tray, the heat generated by the new energy battery pack is absorbed by the coolant and then taken away to maintain the normal operating temperature of the equipment.

[0004] The existing liquid cooling channel of the battery tray can only be arranged on the bottom surface of the new energy battery tray, that is, only the bottom of the entire new energy battery pack is in contact with the cooling system, and the cooling capacity is limited. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a multi-level water channel structure for the end plate of a new energy battery tray, which can cool the rear end surface of the new energy battery pack and add a heat dissipation contact surface to achieve a more uniform temperature control effect, thereby improving and optimizing the heat dissipation and cooling effect of the new energy battery pack and effectively solving the problems in the background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a multi-stage water channel structure of an end plate of a new energy battery tray, comprising a battery tray, an inlet and outlet liquid pipe, a secondary cooling pipe and a primary cooling pipe, wherein longitudinal primary cooling pipes are arranged at equal intervals at the bottom of the battery tray in the horizontal direction, and a transverse inlet and outlet liquid pipes are arranged at the bottom of the front side of the battery tray, and the middle of the inlet and outlet liquid pipes are respectively divided into a return liquid chamber on the left and a delivery liquid chamber on the right by a partition plate, and the delivery liquid chamber is connected with the front end of the primary cooling pipe corresponding to the rear side of the delivery liquid chamber through an inlet hole opened at the rear side of the inlet and outlet liquid pipes, and the return liquid chamber is connected with the front end of the primary cooling pipe corresponding to the rear side of the return liquid chamber through an outlet hole opened at the rear side of the inlet and outlet liquid pipes, and a transverse secondary cooling pipe is arranged at the bottom of the rear side of the battery tray, and a through hole connected to the rear end of each primary cooling pipe is opened at the front side of the secondary cooling pipe.

[0007] The coolant enters the liquid delivery cavity at the right end of the inlet and outlet pipes, then enters the inside of the first-stage cooling pipe on the right side through the inlet hole, then enters the inside of the second-stage cooling pipe through the through hole at the rear end of the first-stage cooling pipe on the right side, flows from the second-stage cooling pipe to the right and left, then enters the first-stage cooling pipe on the left side through the through hole, and then flows back to the return liquid cavity. Since the second-stage cooling pipe is at the rear side of the battery tray and the first-stage cooling pipe is at the bottom of the battery tray, this cycle achieves a cooling effect on the bottom and rear side of the new energy battery pack, adds a heat dissipation contact surface, and achieves better temperature uniformity, so that the temperature control achieves a more uniform effect, and the cooling and heat dissipation effect of the new energy battery pack is improved and optimized.

[0008] Furthermore, it also includes a liquid outlet pipe and a liquid inlet pipe, wherein the left end of the front side of the liquid inlet and outlet pipe is fixedly connected with the liquid outlet pipe, and the rear end of the liquid outlet pipe is connected with the return liquid cavity, and the right end of the front side of the liquid inlet and outlet pipe is fixedly connected with the liquid inlet pipe, and the rear end of the liquid inlet pipe is connected with the liquid delivery cavity. The liquid inlet pipe is connected to an external coolant pump, and the external coolant pump delivers the coolant into the liquid delivery cavity through the liquid inlet pipe. The circulating coolant enters the return liquid cavity and is discharged through the liquid outlet pipe, thereby realizing the circulation exchange of the coolant with the outside.

[0009] Furthermore, it also includes a retaining ring, which is fixedly sleeved on the middle outer peripheral side of the liquid outlet pipe and the liquid inlet pipe. Since both the liquid outlet pipe and the liquid inlet pipe need to be connected to the external pipeline, the retaining ring can limit the end of the external pipeline to ensure a stable and sealed connection between the external pipeline and the liquid outlet pipe or the liquid inlet pipe.

[0010] Furthermore, it also includes a front sealing plate, and the left and right end openings of the inlet and outlet pipes are respectively fixedly connected with the front sealing plates. The inlet and outlet pipes are integrally connected with the front side plate of the battery tray. When the inlet and outlet pipes are produced and processed, the process requires that both ends of the inlet and outlet pipes be open. Therefore, after the inlet and outlet pipes are processed, the two ends of the inlet and outlet pipes need to be closed with the help of the front sealing plates.

[0011] Furthermore, it also includes a rear sealing plate, and the rear sealing plates are fixedly connected to the left and right end openings of the secondary cooling pipe respectively. The secondary cooling pipe is integrally connected to the rear side of the battery tray. When the secondary cooling pipe is produced and processed, the process requires that both ends of the secondary cooling pipe be open, so the rear sealing plate is required to close both ends of the secondary cooling pipe.

[0012] Furthermore, it also includes a temperature detection port, and the temperature detection ports are respectively opened at the left and right ends of the rear side of the secondary cooling pipe, and the rear end of the temperature detection port extends to the rear side of the battery tray. In order to detect the temperature of the coolant in the secondary cooling pipe, a temperature detection port is opened, and a coolant temperature detection sensor can be arranged in the secondary cooling pipe through the temperature detection port to detect the temperature of the coolant, and the flow rate of the coolant can be controlled by its temperature.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the multi-level waterway structure of the end plate of the new energy battery tray has the following advantages:

[0014] 1. Since the secondary cooling duct is located at the rear side of the battery tray and the primary cooling duct is located at the bottom of the battery tray, this circulation can achieve the cooling effect on the bottom and rear side of the new energy battery pack.

[0015] 2. The rear end surface of the new energy battery pack can be cooled, and a heat dissipation contact surface is added to achieve a more uniform temperature control effect, thereby improving and optimizing the heat dissipation and cooling effect of the new energy battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the rear structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0019] Figure 4 For this utility model Figure 3 Schematic diagram of the cross-section structure at point A in the middle;

[0020] Figure 5 For this utility model Figure 3 Schematic diagram of the cross-section structure at point B;

[0021] Figure 6 For this utility model Figure 3 Schematic diagram of the cross-sectional structure at point C in the middle.

[0022] In the figure: 1 battery tray, 2 liquid outlet pipe, 3 retaining ring, 4 liquid inlet and outlet pipes, 5 front sealing plate, 6 secondary cooling pipe, 7 rear sealing plate, 8 liquid inlet pipe, 9 temperature detection port, 10 middle partition, 11 inlet hole, 12 primary cooling pipe, 13 through hole, 14 outlet hole, 15 front module crossbeam, 16 rear module crossbeam. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] For example, see Figures 1 to 6The utility model provides a technical solution: a multi-stage water channel structure of a new energy battery tray end plate, including a battery tray 1, an inlet and outlet liquid pipe 4, a secondary cooling pipe 6 and a primary cooling pipe 12. The bottom of the battery tray 1 is horizontally and equidistantly provided with a longitudinal primary cooling pipe 12, and the front bottom of the battery tray 1 is provided with a transverse inlet and outlet liquid pipe 4. The middle of the inlet and outlet liquid pipe 4 is divided into a return liquid chamber on the left and a delivery liquid chamber on the right by a partition plate 10. The delivery liquid chamber is connected with the front end of the primary cooling pipe 12 corresponding to the rear side of the delivery liquid chamber through an inlet hole 11 opened on the rear side of the inlet and outlet liquid pipe 4, and the return liquid chamber is connected with the front end of the primary cooling pipe 12 corresponding to the rear side of the return liquid chamber through an outlet hole 14 opened on the rear side of the inlet and outlet liquid pipe 4. A transverse secondary cooling pipe 6 is provided at the bottom of the rear side of the battery tray 1, and a through hole 13 connected with the rear end of each primary cooling pipe 12 is opened on the front side of the secondary cooling pipe 6.

[0025] It also includes a liquid outlet pipe 2 and a liquid inlet pipe 8. The liquid outlet pipe 2 is inserted and fixedly connected to the left end of the front side of the liquid inlet and outlet pipe 4. The rear end of the liquid outlet pipe 2 is communicated with the return liquid cavity. The liquid inlet pipe 8 is inserted and fixedly connected to the right end of the front side of the liquid inlet and outlet pipe 4. The rear end of the liquid inlet pipe 8 is communicated with the liquid delivery cavity. The liquid inlet pipe 8 is connected to an external coolant pump. The external coolant pump delivers the coolant into the liquid delivery cavity through the liquid inlet pipe 8. The circulating coolant enters the return liquid cavity and is discharged through the liquid outlet pipe 2, thereby realizing the circulation exchange of the coolant with the outside.

[0026] It also includes a retaining ring 3, which is fixedly sleeved on the middle outer peripheral side of the liquid outlet pipe 2 and the liquid inlet pipe 8. Since the liquid outlet pipe 2 and the liquid inlet pipe 8 both need to be connected to external pipelines, the retaining ring 3 can limit the end of the external pipeline to ensure a stable and sealed connection between the external pipeline and the liquid outlet pipe 2 or the liquid inlet pipe 8.

[0027] It also includes a front sealing plate 5, and the left and right openings of the inlet and outlet pipes 4 are respectively fixedly connected with the front sealing plates 5. The inlet and outlet pipes 4 are integrally connected with the front side plate of the battery tray 1. When the inlet and outlet pipes 4 are produced and processed, the inlet and outlet pipes 4 need to be opened at both ends due to process problems. Therefore, after the inlet and outlet pipes 4 are processed, the two ends of the inlet and outlet pipes 4 need to be closed with the help of the front sealing plates 5.

[0028] It also includes a rear sealing plate 7, and the rear sealing plates 7 are respectively fixedly connected to the openings at the left and right ends of the secondary cooling pipe 6. The secondary cooling pipe 6 is integrally connected to the rear side of the battery tray 1. When the secondary cooling pipe 6 is produced and processed, the process requires that the two ends of the secondary cooling pipe 6 be open, so the rear sealing plate 7 is required to close the two ends of the secondary cooling pipe 6.

[0029] When in use, the coolant enters the liquid delivery cavity at the right end of the inlet and outlet liquid pipe 4, then enters the inside of the first-level cooling pipe 12 on the right side through the inlet hole 11, and then enters the inside of the second-level cooling pipe 6 through the through hole 13 at the rear end of the first-level cooling pipe 12 on the right side, flows from the second-level cooling pipe 6 to the right and left, and then enters the first-level cooling pipe 12 on the left side through the through hole 13, and then flows back to the liquid return cavity. Since the secondary cooling pipe 6 is located on the rear side of the battery tray 1 and the first-level cooling pipe 12 is located at the bottom of the battery tray 1, through this cycle, the cooling effect of the bottom and rear side of the new energy battery pack is achieved, a heat dissipation contact surface is added, the temperature uniformity is better, the temperature control achieves a more uniform effect, and the cooling and heat dissipation effect of the new energy battery pack is improved and optimized.

[0030] For other embodiments, see Figure 2 , and also includes a temperature detection port 9. The temperature detection ports 9 are respectively opened at the left and right ends of the rear side of the secondary cooling pipe 6, and the rear end of the temperature detection port 9 extends to the rear side of the battery tray 1. In order to detect the temperature of the coolant in the secondary cooling pipe 6, the temperature detection port 9 is opened. A coolant temperature detection sensor can be arranged in the secondary cooling pipe 6 through the temperature detection port 9 to detect the temperature of the coolant and control the flow rate of the coolant by its temperature.

[0031] For other embodiments, see Figure 1-3 In order to improve the structural strength of the battery tray 1 and avoid deformation of the battery tray 1, and to provide good protection for the new energy battery pack, a front module crossbeam 15 and a rear module crossbeam 16 are also provided. The front end of the battery tray 1 is fixedly connected with the front module crossbeam 15, and the rear end of the battery tray 1 is connected with the rear module crossbeam 16. Threaded holes are also provided on the front module crossbeam 15 and the rear module crossbeam 16. With the help of the threaded holes and bolts, the new energy battery pack can be well fixed to the battery tray 1. The front module crossbeam 15 and the rear module crossbeam 16 can also prevent the inlet and outlet liquid pipes 4 and the secondary cooling pipe 6 from being deformed by external forces.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The multi-level waterway structure of the end plate of the new energy battery tray is characterized by: The invention comprises a battery tray (1), a liquid inlet and outlet pipe (4), a secondary cooling pipe (6) and a primary cooling pipe (12), wherein longitudinal primary cooling pipes (12) are arranged at equal intervals in the horizontal direction at the bottom of the battery tray (1), a transverse liquid inlet and outlet pipe (4) is arranged at the bottom of the front side of the battery tray (1), and a middle partition (10) is provided in the middle of the liquid inlet and outlet pipe (4) to separate a liquid return chamber on the left side and a liquid delivery chamber on the right side, the liquid delivery chamber is connected to the front end of the primary cooling pipe (12) corresponding to the rear side of the liquid delivery chamber through an inlet hole (11) provided at the rear side of the liquid inlet and outlet pipe (4), and the liquid return chamber is connected to the front end of the primary cooling pipe (12) corresponding to the rear side of the liquid return chamber through an outlet hole (14) provided at the rear side of the liquid inlet and outlet pipe (4), and a transverse secondary cooling pipe (6) is provided at the bottom of the rear side of the battery tray (1), and a through hole (13) connected to the rear end of each primary cooling pipe (12) is provided at the front side of the secondary cooling pipe (6).

2. The multi-level water channel structure of the end plate of the new energy battery tray according to claim 1 is characterized in that: It also comprises a liquid outlet pipe (2) and a liquid inlet pipe (8), wherein the left end of the front side of the liquid inlet and outlet pipe (4) is inserted and fixedly connected with the liquid outlet pipe (2), and the rear end of the liquid outlet pipe (2) is communicated with the liquid return chamber, and the right end of the front side of the liquid inlet and outlet pipe (4) is inserted and fixedly connected with the liquid inlet pipe (8), and the rear end of the liquid inlet pipe (8) is communicated with the liquid delivery chamber.

3. The multi-level water channel structure of the end plate of the new energy battery tray according to claim 2 is characterized in that: It also comprises a baffle ring (3), and the baffle ring (3) is fixedly sleeved on the outer peripheral side of the middle part of the liquid outlet pipe (2) and the liquid inlet pipe (8).

4. The multi-level water channel structure of the end plate of the new energy battery tray according to claim 1 is characterized in that: It also comprises a front sealing plate (5), and the left and right end openings of the liquid inlet and outlet pipes (4) are respectively fixedly connected to the front sealing plates (5).

5. The multi-level water channel structure of the end plate of the new energy battery tray according to claim 1 is characterized in that: It also comprises a rear sealing plate (7), and the rear sealing plates (7) are respectively fixedly connected to the openings at the left and right ends of the secondary cooling pipeline (6).

6. The multi-level water channel structure of the end plate of the new energy battery tray according to claim 1 is characterized in that: It also comprises a temperature detection port (9), wherein the temperature detection ports (9) are respectively provided at the left and right ends of the rear side of the secondary cooling pipe (6), and the rear end of the temperature detection port (9) extends to the rear side of the battery tray (1).

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