PACK structure of bilateral tab soft package battery pack

Abstract

The utility model discloses a PACK structure of a bilateral tab soft package battery pack. The PACK structure comprises an end cover, a support plate, a left side plate, a right side plate, a soft package battery and a heat insulation plate, the plurality of groups of soft package batteries and the plurality of groups of heat insulation plates are sequentially arranged in a staggered manner to form a battery cell part, the two groups of supporting plates are respectively arranged at the front end and the rear end of the battery cell part, and the left side plate and the right side plate are respectively arranged on the two sides of the supporting plates; the two end covers are installed at the upper ends and the lower ends of the left side plate and the right side plate correspondingly. According to the utility model, the disassembly and assembly can be quickly completed, the fixation can be completed only by screwing the nut and the screw rod, a plurality of groups of fasteners are not needed, the heat dissipation efficiency can be improved by the design of the ventilation holes in the heat insulation plate, and the heating of the soft package battery can be completed by feeding air heated by the heating rod in winter; and the safety and the cruising ability of the battery pack in different environments are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a PACK structure of a double-sided tab soft-pack battery pack. Background Art

[0002] The PACK structure usually refers to the structural design of the battery pack, which includes multiple components, each of which has its specific function. The design of the entire PACK structure needs to consider multiple aspects such as the safety and maintainability of the structural electrical system, the durability and effectiveness of the battery thermal management system, the dust / waterproof design of the battery pack structure, and the safety failure pressure relief and emergency handling of the battery.

[0003] However, the existing PACK structure of the double-sided tab soft-pack battery pack often requires the use of multiple sets of fasteners during assembly, making its installation and disassembly steps cumbersome, especially inconvenient during later maintenance. In addition, the traditional air cooling mechanism often has poor heat dissipation efficiency and cannot effectively dissipate heat for each battery group. It is also impossible to quickly heat up the battery in winter, which affects the battery life.

[0004] Therefore, how to provide a PACK structure for a double-sided tab soft-pack battery pack is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] One purpose of the utility model is to propose a PACK structure of a double-sided tab soft-pack battery pack, which can be quickly disassembled and assembled, and can be fixed by simply screwing the final nut and the screw during installation, without the need to use multiple sets of fasteners. The design of the ventilation holes inside the heat insulation board can improve the heat dissipation efficiency, and the soft-pack battery can also be heated in winter by introducing air heated by a heating rod, thereby improving the safety and endurance of the battery pack in different environments.

[0006] A PACK structure of a double-sided tab soft-pack battery pack according to an embodiment of the utility model includes an end cover, a support plate, a left plate, a right plate, a soft-pack battery and a heat insulation plate;

[0007] The number of the soft-pack batteries and the heat insulation plates is multiple groups, and the multiple groups of soft-pack batteries and the multiple groups of heat insulation plates are staggered and installed in sequence to form a battery core part, the two groups of support plates are respectively placed at the front and rear ends of the battery core part, the left side plate and the right side plate are respectively installed on both sides of the support plate, and the two groups of end covers are respectively installed at the upper and lower ends of the left side plate and the right side plate;

[0008] The left and right plates are both provided with a plurality of heat dissipation grooves, both ends of the heat insulation plate are inserted into the heat dissipation grooves, an outer frame is fixedly mounted on the outer wall of the right plate, and a plurality of heat dissipation fans are mounted in the middle of the outer frame.

[0009] Furthermore, T-shaped slots are symmetrically provided on the upper and lower sides of both ends of the support plate, and T-shaped plugs are integrally formed on the upper and lower sides of both ends of the left plate and the right plate, and the T-shaped plugs are inserted into the T-shaped slots.

[0010] Furthermore, screws are fixedly installed on both the top and bottom sides of the left and right plates, mounting holes are opened at the four corners of the end cover, the screws pass through the mounting holes, and nuts are screwed on the top of the screws and located in the mounting holes.

[0011] Furthermore, a heating rod is fixedly installed inside the outer frame and inside each group of cooling fans.

[0012] Furthermore, ventilation holes are provided throughout the interior of the heat insulation board.

[0013] Furthermore, the left side plate and the right side plate are fixedly connected to the support plate by cooperating with the T-shaped plug-in block and the T-shaped slot.

[0014] Furthermore, the two groups of end covers are fixedly installed on the upper and lower sides of the left plate and the right plate through the cooperation of screws and nuts.

[0015] The beneficial effects of the utility model are:

[0016] The utility model can complete the clamping connection of the left plate and the right plate on both sides of the two groups of support plates by inserting the T-shaped plug block into the T-shaped slot, and then use the nut to complete the fixed installation of the two groups of end covers at the upper and lower ends after the screw rod is inserted into the installation hole. Therefore, the overall assembly operation is simple, and the required fasteners are relatively small. After installation, the various components are mutually limited, stable and reliable. The ventilation holes designed inside the heat insulation board can cooperate with the heat dissipation fan to improve the heat dissipation efficiency and make the cooling speed faster. When working in cold weather, hot air can be blown into the ventilation holes through the cooperation of the heat dissipation fan and the heating rod. At this time, each group of heat insulation boards can realize the heating of the soft-pack batteries to ensure the battery life of the battery pack in cold weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a PACK structure of a double-sided tab soft-pack battery pack proposed by the utility model;

[0019] Figure 2 A schematic diagram of the disassembled structure of a PACK structure of a double-sided tab soft-pack battery pack proposed by the utility model;

[0020] Figure 3A schematic diagram of a heat insulation board structure of a PACK structure of a double-sided tab soft-pack battery pack proposed in the utility model.

[0021] In the figure: 1. end cover; 2. ventilation hole; 3. support plate; 4. left side plate; 5. right side plate; 6. outer frame; 7. cooling fan; 8. heating rod; 9. heat dissipation groove; 10. T-shaped plug; 11. T-shaped slot; 12. screw; 13. mounting hole; 14. nut; 15. soft-pack battery; 16. thermal insulation board. DETAILED DESCRIPTION

[0022] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0023] refer to Figure 1-2 , a PACK structure of a double-sided tab soft-pack battery pack, comprising an end cover 1, a support plate 3, a left side plate 4, a right side plate 5, a soft-pack battery 15 and a heat insulation plate 16;

[0024] There are multiple groups of soft-pack batteries 15 and heat insulation boards 16, and the multiple groups of soft-pack batteries 15 and the multiple groups of heat insulation boards 16 are staggered and installed in sequence to form a battery core part. The width of the heat insulation board 16 is greater than that of the soft-pack battery 15, so the two sides of the heat insulation board 16 protrude from the soft-pack battery 15;

[0025] Two groups of support plates 3 are respectively placed at the front and rear ends of the battery core part, the left side plate 4 and the right side plate 5 are respectively installed on both sides of the support plate 3, and a plurality of groups of heat dissipation grooves 9 are opened through the left side plate 4 and the right side plate 5, and the two ends of the heat insulation plate 16 are inserted into the heat dissipation grooves 9;

[0026] Specifically, T-shaped slots 11 are symmetrically provided on the upper and lower sides of both ends of the support plate 3, and T-shaped plug blocks 10 are integrally formed on the upper and lower sides of both ends of the left plate 4 and the right plate 5, and the T-shaped plug blocks 10 are inserted into the T-shaped slots 11;

[0027] The left side plate 4 and the right side plate 5 are fixedly connected with the support plate 3 by the cooperation of the T-shaped plug block 10 and the T-shaped slot 11;

[0028] Two sets of end covers 1 are respectively installed at the upper and lower ends of the left side plate 4 and the right side plate 5;

[0029] Specifically, screws 12 are fixedly installed on both the top and bottom sides of the left side plate 4 and the right side plate 5, and mounting holes 13 are opened at the four corners of the end cover 1. The screws 12 pass through the mounting holes 13, and nuts 14 are screwed on the top of the screws 12 and located in the mounting holes 13;

[0030] The two sets of end covers 1 are fixedly installed on the upper and lower sides of the left plate 4 and the right plate 5 by means of screws 12 and nuts 14;

[0031] In this embodiment, the battery pack is composed of a soft-pack battery 15, a heat insulation plate 16, a left side plate 4, a right side plate 5, two groups of support plates 3 and two groups of end covers 1. During installation, multiple groups of soft-pack batteries 15 and multiple groups of heat insulation plates 16 are stacked alternately in sequence, and the left side plate 4 and the right side plate 5 are assembled with the support plate 3 by inserting the T-shaped plug 10 into the T-shaped slot 11. Finally, the two groups of end covers 1 can be installed on the upper and lower sides respectively. During installation, the screw 12 passes through the mounting hole 13, and then the nut 14 is screwed onto the screw 12 in the mounting hole 13 to complete the fixation. The overall assembly steps are simple. After installation, the support plate 3, the left side plate 4, the right side plate 5 and the end cover 1 are mutually limited, which is stable and reliable.

[0032] refer to Figure 2-3 The outer wall of the right side plate 5 is fixedly mounted with an outer frame 6, and a plurality of cooling fans 7 are mounted in the middle of the outer frame 6, and the cooling fans 7 are arranged in a line;

[0033] A heating rod 8 is fixedly installed inside the outer frame 6 and inside each group of cooling fans 7. The heating rod 8 is vertically installed at the air outlet of each group of cooling fans 7.

[0034] Secondly, a ventilation hole 2 is provided inside the heat insulation board 16, and the air flow in the ventilation hole 2 can improve the heat dissipation quality;

[0035] In this embodiment, the heat dissipation fan 7 can be started to blow outside air into the ventilation holes 2 opened in each group of heat insulation boards 16. After the air passes through the ventilation holes 2, the heat insulation boards 16 can be quickly cooled, so that they can effectively cool down during operation. When working in winter, the heating rod 8 can be started to make the heat dissipation fan 7 blow hot air into each group of heat insulation boards 16. At this time, the hot air can pass through each group of heat insulation boards 16, thereby heating the soft-pack batteries 15.

[0036] Working principle: First, each group of soft-pack batteries 15 and each group of heat insulation plates 16 can be staggered and stacked together to form a battery cell part, and then the two groups of support plates 3 can be placed on the front and rear sides of the battery cell part respectively, and then the left side plate 4 and the right side plate 5 are placed on both sides of the two groups of support plates 3 respectively, and the T-shaped plug block 10 is inserted into the T-shaped slot 11 to complete the clamping of the left side plate 4 and the right side plate 5 on both sides of the support plate 3. In this process, each group of heat insulation plates 16 can be inserted into each group of heat dissipation grooves 9, and finally the two groups of end covers 1 are installed on the upper and lower sides respectively, and installed. During installation, the screw rod 12 can be inserted into the mounting hole 13, and then the nut 14 can be screwed on the part of the screw rod 12 extending out of the mounting hole 13 to complete the fixation. After the fixation is completed, the battery pack can be formed as a whole. During operation, the heat dissipation fan 7 can be started to blow air toward the internal ventilation holes 2 of each group of heat insulation plates 16 to dissipate heat. In cold weather, the heating rod 8 can be started in advance so that its heat dissipation fan 7 can blow hot air into the ventilation holes 2. At this time, each group of heat insulation plates 16 can heat and increase the temperature of the soft-pack battery 15, thereby improving the battery's winter endurance.

[0037] It is understandable that the cooling fan in the present invention can be driven by an external power cord, and the cooling fan can be controlled by a main control system through programming, and its control principle can be realized by existing control technology. The model of the cooling fan is not limited to a single type and can be any type currently available on the market that is suitable for the present invention.

[0038] 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 PACK structure of a double-sided tab soft-pack battery pack, characterized in that: It comprises an end cover (1), a support plate (3), a left side plate (4), a right side plate (5), a soft-pack battery (15) and a heat insulation plate (16); The number of the soft-pack batteries (15) and the heat insulation plates (16) is multiple, and the multiple groups of soft-pack batteries (15) and the multiple groups of heat insulation plates (16) are staggered and installed in sequence to form a battery core part, the two groups of support plates (3) are respectively placed at the front and rear ends of the battery core part, the left side plate (4) and the right side plate (5) are respectively installed on both sides of the support plate (3), and the two groups of end covers (1) are respectively installed at the upper and lower ends of the left side plate (4) and the right side plate (5); The left side plate (4) and the right side plate (5) are both provided with a plurality of heat dissipation grooves (9), both ends of the heat insulation plate (16) are inserted into the heat dissipation grooves (9), an outer frame (6) is fixedly mounted on the outer wall of the right side plate (5), and a plurality of heat dissipation fans (7) are mounted in the middle of the outer frame (6).

2. The PACK structure of a double-sided tab soft-pack battery pack according to claim 1, characterized in that: T-shaped slots (11) are symmetrically provided on both upper and lower sides of both ends of the support plate (3); T-shaped insert blocks (10) are integrally formed on both upper and lower sides of both ends of the left plate (4) and the right plate (5); and the T-shaped insert blocks (10) are inserted into the T-shaped slots (11).

3. The PACK structure of a double-sided tab soft-pack battery pack according to claim 1, characterized in that: Screw rods (12) are fixedly mounted on both the top and bottom sides of the left side plate (4) and the right side plate (5); mounting holes (13) are provided at the four corners of the end cover (1); the screw rods (12) pass through the mounting holes (13); and nuts (14) are screwed on the tops of the screw rods (12) and located in the mounting holes (13).

4. The PACK structure of a double-sided tab soft-pack battery pack according to claim 1, characterized in that: A heating rod (8) is fixedly installed inside the outer frame (6) and inside each group of cooling fans (7).

5. The PACK structure of a double-sided tab soft-pack battery pack according to claim 1, characterized in that: A ventilation hole (2) is provided through the interior of the heat insulation board (16).

6. The PACK structure of a double-sided tab soft-pack battery pack according to claim 2, characterized in that: The left side plate (4) and the right side plate (5) are fixedly connected to the support plate (3) by means of a T-shaped plug block (10) and a T-shaped slot (11).

7. The PACK structure of a double-sided tab soft-pack battery pack according to claim 3, characterized in that: The two sets of end covers (1) are fixedly installed on the upper and lower sides of the left side plate (4) and the right side plate (5) by means of screw rods (12) and nuts (14).

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