New energy liquid-cooled battery pack

Abstract

The utility model discloses a new energy liquid-cooled battery pack, which relates to the technical field of battery packs and comprises a bottom plate, a partition plate is fixedly arranged on the bottom plate, a plurality of cooling plates are fixedly arranged on two sides of the partition plate, a square frame is fixedly arranged on the bottom plate, a plurality of battery jars are formed among the square frame, the partition plate and the cooling plates, and battery blocks are arranged in the battery jars. A charging socket is fixedly formed in one side of the square frame, a sealing plate is arranged on the square frame, a pair of L-shaped plates is fixedly arranged on each of the two sides of the square frame, a plurality of mounting holes are formed in each L-shaped plate, and a plurality of screws are inserted into the sealing plate. The cooling plate, the heat exchange pipe, the T-shaped pipe, the water inlet pipe, the water outlet pipe and the connector are matched for use, the internal space of the battery pack cannot be occupied when the pipeline is laid, the sealing performance of the battery pack can be improved when the battery pack is sealed through the matched use of the sealing strip and the sealing groove, and impurities and water in the battery pack caused by poor sealing performance are prevented.

Description

Technical Field

[0001] The utility model relates to the field of battery packs, in particular to a new energy liquid-cooled battery pack. Background Art

[0002] With the promulgation and implementation of more national new policies, the new energy vehicle field has ushered in rapid development. As one of the core components of new energy, the battery pack plays a vital role. The power battery is composed of modules. During the use of the battery module, due to the internal resistance of the internal battery cell, a certain amount of heat will be generated during normal operation, causing the internal temperature of the module to rise.

[0003] The existing battery pack occupies a large amount of storage space in the battery pack due to the laying of heat exchange tubes, resulting in low space utilization in the battery pack. The battery pack also has poor sealing performance, which makes it easy for debris and water to enter, easily reducing the service life of the battery pack. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a new energy liquid-cooled battery pack.

[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0006] A new energy liquid-cooled battery pack comprises a bottom plate, a partition is fixedly provided on the bottom plate, a plurality of cooling plates are fixedly provided on both sides of the partition, a square frame is fixedly provided on the bottom plate, a plurality of battery slots are formed between the square frame, the partition and the cooling plate, battery blocks are provided in the battery slots, a charging socket is fixedly provided on one side of the square frame, a sealing plate is provided on the square frame, a sealing cover is provided on the square frame, a pair of L-shaped plates are fixedly provided on both sides of the square frame, a plurality of mounting holes are provided on the L-shaped plates, a plurality of screws are inserted on the sealing plates, the screws are threadedly connected with the square frame, heat exchange tubes are fixedly provided in the cooling plates, a T-shaped tube is fixedly provided between each pair of the heat exchange tubes, a water inlet tube is fixedly provided in the bottom plate, the T-shaped tubes are fixedly connected to the water inlet tube, a pair of water outlet tubes are fixedly provided in the bottom plate, the water outlet tubes are respectively fixedly connected to one end of the heat exchange tube, and a connector is fixedly provided at one end of the water inlet tube and the water outlet tube.

[0007] Preferably, a sealing strip is fixedly provided on the square frame, and a sealing groove is provided at the bottom of the sealing cover.

[0008] Preferably, the four sides of the bottom plate are respectively parallel to the square frame, and the charging socket is located at the center of one side of the short side of the square frame.

[0009] Preferably, the screws all pass through the sealing cover, and a plurality of the screws are distributed in a rectangular row.

[0010] Preferably, the T-shaped tubes all penetrate the partition, and the plurality of cooling plates are distributed in a linear array.

[0011] Preferably, the cooling plates on both sides of the partition are arranged symmetrically, and the exchange tube is in an S-shaped curve.

[0012] Preferably, the heat exchange tubes all pass through the cooling plate, and the water inlet pipe and the water outlet pipe all pass through the bottom plate.

[0013] Preferably, the sealing strip fits against the inner wall of the sealing groove, and the sealing groove is a rectangular arc-shaped groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the present invention, by using the cooling plate, heat exchange tube, T-shaped tube, water inlet pipe, water outlet pipe and connector in coordination, the space inside the battery pack will not be occupied when laying the pipe, thereby improving the space utilization of the battery pack;

[0016] 2. In the present invention, by using the sealing strip in conjunction with the sealing groove, the sealing performance of the battery pack can be improved, thereby preventing debris and water from entering and exiting the battery pack due to poor sealing performance, thereby increasing the service life of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic cross-sectional structural diagram of the sealing cover of the utility model;

[0020] Figure 3 This is a schematic diagram of the position relationship between the partition and the cooling plate of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the cooling plate of the utility model;

[0022] Figure 5 For the utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0023] Serial numbers in the figure: 1. bottom plate; 11. partition; 12. cooling plate; 13. square frame; 14. battery slot; 15. battery block; 16. charging socket; 17. sealing plate; 18. sealing cover; 19. L-shaped plate; 111. mounting hole; 112. screw; 113. heat exchange tube; 114. T-shaped tube; 115. water inlet pipe; 116. water outlet pipe; 117. connector; 2. sealing strip; 21. sealing groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Embodiment 1: This embodiment provides a new energy liquid-cooled battery pack, see Figure 1-5 Specifically, it includes a bottom plate 1, a partition 11 is fixed on the bottom plate 1, and a plurality of cooling plates 12 are fixed on both sides of the partition 11, a square frame 13 is fixed on the bottom plate 1, and a plurality of battery slots 14 are formed between the square frame 13 and the partition 11 and the cooling plate 12, and a battery block 15 is arranged in each battery slot 14, a charging socket 16 is fixed on one side of the square frame 13, a sealing plate 17 is arranged on the square frame 13, a sealing cover 18 is arranged on the square frame 13, a pair of L-shaped plates 19 are fixed on both sides of the square frame 13, and a plurality of installation holes are provided on the L-shaped plates 19 A plurality of screws 112 are inserted into the sealing plate 17, and the screws 112 are all threadedly connected to the square frame 13. Heat exchange tubes 113 are fixedly arranged in the cooling plate 12, and a T-shaped tube 114 is fixedly arranged between each pair of heat exchange tubes. A water inlet pipe 115 is fixedly arranged in the bottom plate 1, and the T-shaped tubes 114 are fixedly connected to the water inlet pipe 115. A pair of water outlet pipes 116 are fixedly arranged in the bottom plate 1, and the water outlet pipes 116 are respectively fixedly connected to one end of the heat exchange tube 113, and a connector 117 is fixedly arranged at one end of the water inlet pipe 115 and the water outlet pipe 116;

[0026] The four sides of the bottom plate 1 are parallel to the square frame 13 respectively, the charging socket 16 is located at the center of one side of the short side of the square frame 13, the screws 112 all penetrate the sealing cover 18, and multiple screws 112 are distributed in a rectangular row, the T-shaped tubes 114 all penetrate the partition 11, and multiple cooling plates 12 are linearly arranged. The cooling plates 12 located on both sides of the partition 11 are symmetrically arranged, the exchange tube 113 is an S-shaped curve, the heat exchange tubes 113 all penetrate the cooling plate 12, and the water inlet pipe 115 and the water outlet pipe 116 all penetrate the bottom plate 1.

[0027] In the specific implementation process, Figure 3 and Figure 4As shown, the battery pack is fixedly installed through the mounting hole 111 on the L-shaped plate 19, the battery block 15 is placed in the battery slot 14 and connected together, the sealing plate 17 is placed on the battery block 15, and the sealing cover 18 is covered. The sealing cover 18 is fixed to the square frame 13 by screws 112. The sealing cover 18 presses down the sealing plate 17 and the battery block 15 is tightly fitted, so that it is firmly fixed in the battery slot 14 and cannot move. When the battery pack is used, the internal battery block 15 generates heat, and the coolant is passed through the water inlet pipe 115. The heat generated by the battery block 15 is transferred to the cooling plate 12 through heat transfer. The heat exchange tube 113 in the cooling plate 12 takes away the heat generated by the battery block 15 through the flow of coolant and discharges it from the outlet pipe 116. By using the cooling plate 12, the heat exchange tube 113, the T-tube 114, the water inlet pipe 115, the water outlet pipe 116 and the connector 117 in coordination, the space inside the battery pack will not be occupied when laying the pipeline.

[0028] Embodiment 2: In Embodiment 1, there is still the problem that the battery pack has poor sealing performance and is easy to enter debris and water. Therefore, based on Embodiment 1, this embodiment also includes:

[0029] A sealing strip 2 is fixedly mounted on the square frame 13 , and a sealing groove 21 is formed at the bottom of the sealing cover 18 . The sealing strip 2 is fitted to the inner wall of the sealing groove 21 , and the sealing groove 21 is a rectangular arc-shaped groove.

[0030] In the specific implementation process, Figure 2 and Figure 5 As shown, when the sealing plate 17 is fixed on the square frame 13, the sealing groove 21 at the bottom of the sealing plate 17 is aligned with the sealing strip 2, so that the sealing strip 2 is located in the sealing groove 21, and the screw 112 is turned. The screw 112 drives the sealing groove 21 to descend through the sealing cover 18, so that the sealing groove 21 presses the sealing strip 2 so that there is no gap between them. By using the sealing strip 2 and the sealing groove 21 in coordination, the sealing performance of the battery pack can be increased when it is sealed, preventing debris and water from entering the interior due to poor sealing performance.

[0031] Specifically, the working principle and operation method of the utility model are as follows:

[0032] Step 1: Fix and install the battery pack through the mounting hole 111 on the L-shaped plate 19, put the battery block 15 into the battery slot 14 and connect them together, put the sealing plate 17 on the battery block 15, cover the sealing cover 18, and fix the sealing cover 18 and the square frame 13 together through the screws 112. The sealing cover 18 presses down the sealing plate 17 and the battery block 15 tightly fits so that it is firmly fixed in the battery slot 14 and cannot move. When the battery pack is in use, the internal battery block 15 will generate heat. The coolant is injected into the T-shaped tube 114 through the water inlet pipe 115, and flows into the heat exchange tube 113 through the T-shaped tube 114. The heat generated by the battery block 15 is transferred to the cooling plate 12 through heat transfer. The heat exchange tube 113 in the cooling plate 12 takes away the heat generated by the battery block 15 through the flow of coolant, and then discharges it from the water outlet pipe 116. After circulating through the cooling water, the battery block 15 in the battery pack is cooled.

[0033] Step 2: When the sealing plate 17 is fixed on the square frame 13, align the sealing groove 21 at the bottom of the sealing plate 17 with the sealing strip 2, so that the sealing strip 2 is located in the sealing groove 21, and rotate the screw 112. The screw 112 drives the sealing groove 21 to descend through the sealing cover 18, so that the sealing groove 21 presses the sealing strip 2 tightly, so that there is no gap between them, and the battery pack is sealed as a whole;

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new energy liquid-cooled battery pack, comprising a base plate (1), characterized in that: A partition (11) is fixedly provided on the bottom plate (1), and a plurality of cooling plates (12) are fixedly provided on both sides of the partition (11). A square frame (13) is fixedly provided on the bottom plate (1), and a plurality of battery slots (14) are formed between the square frame (13), the partition (11) and the cooling plates (12). Battery blocks (15) are provided in the battery slots (14). A charging socket (16) is fixedly provided on one side of the square frame (13), a sealing plate (17) is provided on the square frame (13), and a sealing cover (18) is provided on the square frame (13). A pair of L-shaped plates (19) are fixedly provided on both sides of the square frame (13), and a plurality of mounting holes are provided on the L-shaped plates (19). (111), a plurality of screws (112) are inserted into the sealing plate (17), and the screws (112) are all threadedly connected to the square frame (13); a heat exchange tube (113) is fixedly arranged in the cooling plate (12), and a T-shaped tube (114) is fixedly arranged between each pair of the heat exchange tubes; a water inlet tube (115) is fixedly arranged in the bottom plate (1), and the T-shaped tube (114) is fixedly connected to the water inlet tube (115); a pair of water outlet tubes (116) are fixedly arranged in the bottom plate (1), and the water outlet tubes (116) are respectively fixedly connected to one end of the heat exchange tube (113); and a connector (117) is fixedly arranged at one end of each of the water inlet tube (115) and the water outlet tube (116).

2. A new energy liquid-cooled battery pack according to claim 1, characterized in that: A sealing strip (2) is fixedly provided on the square frame (13), and a sealing groove (21) is provided at the bottom of the sealing cover (18).

3. A new energy liquid-cooled battery pack according to claim 1, characterized in that: The four sides of the bottom plate (1) are respectively parallel to the square frame (13), and the charging socket (16) is located at the center of one side of the short side of the square frame (13).

4. A new energy liquid-cooled battery pack according to claim 1, characterized in that: The screws (112) all penetrate the sealing cover (18), and a plurality of the screws (112) are distributed in a rectangular row.

5. The new energy liquid-cooled battery pack according to claim 1, characterized in that: The T-shaped tubes (114) all penetrate the partition plate (11), and the plurality of cooling plates (12) are arranged in a linear array.

6. The new energy liquid-cooled battery pack according to claim 1, characterized in that: The cooling plates (12) located on both sides of the partition plate (11) are arranged symmetrically, and the exchange tube (113) is in an S-shaped curve.

7. The new energy liquid-cooled battery pack according to claim 1, characterized in that: The heat exchange tubes (113) all pass through the cooling plate (12), and the water inlet pipe (115) and the water outlet pipe (116) all pass through the bottom plate (1).

8. The new energy liquid-cooled battery pack according to claim 2, characterized in that: The sealing strip (2) fits in contact with the inner wall of the sealing groove (21), and the sealing groove (21) is a rectangular arc-shaped groove.

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