Power battery module device with fixing device

Abstract

The utility model provides a power battery module device with a fixing device. The power battery module device comprises a supporting panel, a locking side plate, a battery module, a first conductive component array and a second conductive component array, the locking side plates are arranged on the short edges of the supporting panel, and the fixing bolts penetrate through the fixing through holes to fixedly arrange the locking side plates in the battery pack; the battery module is fixedly arranged below the supporting panel and comprises a plurality of battery cells; the first conductive assembly array and the second conductive assembly array are respectively arranged on two long edges of the supporting panel; and the thermistor is fixedly arranged on the device through the quick release assembly. A plurality of battery cells are fixed to form the battery module through the supporting panel, the plurality of battery cells are electrically connected through the first conductive assembly array and the second conductive assembly array, overall disassembly and assembly of the battery module are achieved based on the locking side plate, and then the thermistor is fixed to the device through the quick disassembly assembly. The structure is more optimized, mounting and dismounting are more convenient, and modularization is better achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery module assembly, and in particular to a power battery module device with a fixing device which is convenient for modular quick replacement and quick disassembly of a battery pack. Background Art

[0002] As a key component for storing and providing electrical energy in electric vehicles, the battery pack has an important impact on the performance, safety and range of electric vehicles.

[0003] Structurally, the battery pack includes battery modules, BMS system, thermal management system and structural parts, etc. The battery modules, BMS system and thermal management system are directly or indirectly set on the structural parts. The battery module is used to provide the required voltage and current; the BMS system is used to monitor parameters such as voltage, current, temperature, and perform energy control management to ensure the safe operation of the battery; the thermal management system is used to ensure that the battery operates within a suitable temperature range; the structural room is used to support and protect the battery. This technical solution mainly improves the auxiliary structure of the battery module.

[0004] A battery pack is equipped with multiple battery modules, and a battery module includes multiple battery cells. Multiple battery cells are combined into a battery module in series or parallel, and the battery module provides the required voltage and current as a whole. From a design perspective, the arrangement, connection, and fixing of the battery cells are crucial to improving the energy density, safety, and reliability of the battery pack. The battery modules in the prior art pay more attention to how to ensure the firmness of the structure, and there is less research on how to optimize the layout, simplify the disassembly and assembly procedures, and realize modular operation. This technical solution aims to solve this problem. Utility Model Content

[0005] The technical problem to be solved by the present invention is that, in view of the above-mentioned defects of the prior art, a power battery module device with a fixing device is provided, which can make the battery module structure more optimized, easier to install and disassemble, and better realize modularization through optimizing the structural design.

[0006] The technical solution adopted by the utility model to solve the technical problem is as follows:

[0007] A power battery module device with a fixing device, comprising:

[0008] A supporting panel, wherein the supporting panel is a rectangular plate-shaped structure, and is formed with two oppositely disposed short sides and two oppositely disposed long sides;

[0009] A locking side plate, the locking side plate is arranged on the short side of the supporting panel, the locking side plate is provided with a fixing through hole, a fixing bolt is arranged in the fixing through hole, and the fixing bolt passes through the fixing through hole to fix the locking side plate in the battery pack;

[0010] A battery module, the battery module is fixedly disposed below the support panel, and the battery module includes a plurality of battery cells;

[0011] a first conductive component array and a second conductive component array, wherein the first conductive component array and the second conductive component array are respectively arranged on two long sides of the support panel, and a plurality of cells in the battery module form a series circuit through the first conductive component array and the second conductive component array, and the first conductive component array and the second conductive component array respectively include a plurality of aluminum bars arranged at intervals;

[0012] A quick-release assembly is arranged on the support panel, and the thermistor is fixedly arranged on the device through the quick-release assembly.

[0013] Compared with the prior art, the beneficial effects of the present technical solution are: multiple battery cells are fixed to form a battery module through a support panel and multiple battery cells are electrically connected through a first conductive component array and a second conductive component array, the overall disassembly and assembly of the battery module is achieved based on the locking side panel, and the thermistor is fixed to the device using a quick-release assembly, which is more structurally optimized, easier to install and disassemble, and better modularized.

[0014] Further, it also includes a first isolation panel column and a second isolation panel column;

[0015] The first isolation plate column and the second isolation plate column are fixedly arranged on the support panel along the long side direction of the support panel, the first isolation plate column and the second isolation plate column are located on the other side opposite to the battery module, a wiring harness fixing groove is formed between the first isolation plate column and the second isolation plate column, and the first isolation plate column and the second isolation plate column respectively include a plurality of isolation vertical plates which are sequentially connected end to end.

[0016] The beneficial effect of adopting the above scheme is that: the first isolation plate column and the second isolation plate column form a wire harness fixing groove, and the wires in the device are confined therein by the wire harness fixing groove, so that the structure of the device is more scientific.

[0017] Furthermore, the aluminum bar includes a first planar aluminum plate, a second planar aluminum plate and a raised connecting portion, the first planar aluminum plate and the second planar aluminum plate are connected into an integral structure through the raised connecting portion, a raised portion is formed on the raised connecting portion toward the top of the support panel, and the battery cell is fixed below the raised connecting portion by welding.

[0018] The beneficial effects of adopting the above scheme are: an aluminum bar is formed based on the first plane aluminum plate, the second plane aluminum plate and the raised connecting part, electrical connection is achieved through the first plane aluminum plate and the second plane aluminum plate, a structural margin is provided based on the raised connecting part, and the battery cell is fixed under the raised connecting part by welding, so that when the battery cell generates heat during operation, expansion due to overheating and resulting in damage is avoided.

[0019] Further, a plurality of positioning protrusions are respectively provided on the two long sides of the support panel, and positioning through holes are provided on the first flat aluminum plate and the second flat aluminum plate, and the aluminum bar is fixedly provided on the support panel by being sleeved and fixed in the positioning through holes by the positioning protrusions;

[0020] The plurality of aluminum bars located on one of the long sides of the support panel form the first conductive component array, and the plurality of aluminum bars located on the other long sides of the support panel form the second conductive component array.

[0021] The beneficial effect of adopting the above scheme is that the aluminum bar is fixed on the support panel by being fixed in the positioning through hole through the positioning protrusion, which can ensure the installation accuracy, structural stability and electrical connection reliability.

[0022] Furthermore, it also includes a plurality of explosion-proof valve ports, and the explosion-proof valve ports are arranged through the support panel.

[0023] The beneficial effect of adopting the above scheme is that an explosion-proof valve port is provided through the support panel to avoid bulging due to heating.

[0024] Further, the quick-release assembly includes a side fixing buckle, a side connecting plate, a side protruding guide assembly and a mounting hole, and the thermistor is provided with a side clamping groove and a side recessed guide assembly;

[0025] The support panel is connected to the fixed end of the side connecting plate, the side fixing buckle is connected to the movable end of the side connecting plate, and the side protrusion guide assembly is fixedly arranged on the support panel;

[0026] The thermistor is fixed in the vertical direction by the mutual engagement of the side recessed guide assembly and the side raised guide assembly. When the thermistor is gradually inserted along the direction defined by the side recessed guide assembly and the side raised guide assembly, the side fixing buckle gradually approaches and finally engages in the side clamping groove. The thermistor is fixed in the horizontal direction by the mutual engagement of the side fixing buckle and the side clamping groove.

[0027] The mounting hole is opened on the supporting panel, a thermal pad is arranged in the mounting hole, and the thermistor is fixed on the battery core through the thermal pad.

[0028] The beneficial effect of adopting the above scheme is that the side fixing buckle is fixedly arranged on the supporting panel through the side connecting plate, and the two ends of the side connecting plate respectively form a movable end and a fixed end. By utilizing the side clamping groove on the thermistor, the side fixing buckle located at the movable end is driven by external force, thereby realizing the rapid disassembly and assembly of the thermistor.

[0029] Further, the side protrusion guide assembly includes a first side guide strip and a second side guide strip, and the first side guide strip is arranged on the side connecting plate along the horizontal direction;

[0030] The second lateral guide strip is arranged on a side limit plate, the side limit plate is fixedly arranged on the supporting panel, the side connecting plate and the side limit plate are arranged opposite to each other, and the thermistor is located between the side connecting plate and the side limit plate.

[0031] The beneficial effect of adopting the above scheme is that the side connecting plate and the side limiting plate are arranged relative to each other, so that the first side guide strip and the second side guide strip are arranged relative to each other, and the first side guide strip and the second side guide strip are used to ensure that the thermistor will not be offset during installation and disassembly.

[0032] Furthermore, a plurality of wire through holes are respectively provided on the first isolation plate column and the second isolation plate column. The wire through holes are formed in the support panel and located between two adjacent isolation vertical plates. The wire through holes are used to guide the wires from one side of the support panel to the other side.

[0033] The beneficial effect of adopting the above solution is that a wire through hole is formed between two adjacent isolation vertical plates, and wiring is carried out using the wire through hole, which can meet normal monitoring needs and optimize the overall structure.

[0034] Furthermore, the battery module is fixedly bonded to the bottom of the support panel by means of thermally conductive silicone.

[0035] The beneficial effects of adopting the above scheme are: good fixing effect, simple structure and the like.

[0036] Furthermore, the support panel is a plastic structure or an aluminum alloy structure.

[0037] The beneficial effects of adopting the above solution are: adopting a plastic structure as the supporting panel can reduce production costs, while adopting an aluminum alloy structure as the supporting panel can effectively improve structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is an overall schematic diagram of a power battery module device with a fixing device of the utility model.

[0039] Figure 2 It is an exploded schematic diagram of a power battery module device with a fixing device of the utility model.

[0040] Figure 3 It is a schematic diagram of an aluminum bar in a power battery module device with a fixing device according to the utility model.

[0041] Figure 4 This is a first schematic diagram of a quick-release assembly in a power battery module device with a fixing device according to the utility model.

[0042] Figure 5 This is a second schematic diagram of a quick-release assembly in a power battery module device with a fixing device according to the utility model.

[0043] In the figure, the components represented by the reference numerals are as follows:

[0044] Support panel 1, locking side panel 2, first conductive component array 4, second conductive component array 5, aluminum bar 6, quick-release component 7, first isolation plate array 8, second isolation plate array 9, isolation vertical plate 10, explosion-proof valve port 11, wire through hole 12;

[0045] Positioning protrusion 101;

[0046] A first flat aluminum plate 601, a second flat aluminum plate 602, a protruding connection portion 603, and a positioning through hole 604;

[0047] Thermistor 701 , lateral fixing buckle 702 , lateral connecting plate 703 , mounting hole 704 , lateral snap-fit ​​groove 705 , first lateral guide strip 706 , and second lateral guide strip 707 . DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0049] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two components. When a component is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other component or there can also be a central component. When a component is considered to be "connected" to another element, it can be directly connected to the other element or there can be a central element at the same time. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0051] As a key component for storing and providing electrical energy in electric vehicles, the battery pack has an important impact on the performance, safety and range of electric vehicles.

[0052] Structurally, the battery pack includes battery modules, BMS system, thermal management system and structural parts, etc. The battery modules, BMS system and thermal management system are directly or indirectly set on the structural parts. The battery module is used to provide the required voltage and current; the BMS system is used to monitor parameters such as voltage, current, temperature, and perform energy control management to ensure the safe operation of the battery; the thermal management system is used to ensure that the battery operates within a suitable temperature range; the structural room is used to support and protect the battery. This technical solution mainly improves the auxiliary structure of the battery module.

[0053] A battery pack is equipped with multiple battery modules, and a battery module includes multiple battery cells. Multiple battery cells are combined into a battery module in series or parallel, and the battery module provides the required voltage and current as a whole. From a design perspective, the arrangement, connection, and fixing of the battery cells are crucial to improving the energy density, safety, and reliability of the battery pack. The battery module in the existing technology focuses more on how to ensure the firmness of the structure. The industry urgently needs to further solve how to optimize the layout, simplify the disassembly and assembly procedures, and realize modular operation.

[0054] like Figure 1 and Figure 2 As shown, in order to solve the above problems, the utility model provides a power battery module device with a fixing device, including a support panel 1, a locking side panel 2, a battery module, a first conductive component array 4, a second conductive component array 5 and a quick release component 7.

[0055] The support panel 1 is a rectangular plate-shaped structure. Like a general rectangular plate, the support panel 1 is formed with two oppositely disposed short sides and two oppositely disposed long sides.

[0056] The locking side panel 2 is arranged on the short side of the supporting panel 1, and a fixing through hole is arranged on the locking side panel 2, and a fixing bolt is arranged in the fixing through hole, and the fixing bolt passes through the fixing through hole to fix the locking side panel 2 in the battery pack. When the battery module is assembled, the installation and fixation of the device can be achieved by fixing bolts. Preferably, two locking side panels are provided, and the two locking side panels are respectively arranged on the two short sides of the supporting panel, so that the device can be better fixed by the two locking side panels.

[0057] The battery module is fixedly arranged below the support panel 1, and the battery module includes a plurality of battery cells. Preferably, the battery module is fixedly bonded to the bottom of the support panel 1 by thermally conductive silicone, and the mutual fixation between the battery module support panels 1 is achieved by thermally conductive silicone, which can evenly and comprehensively bond and fix each battery cell, and is convenient for dissipating the heat generated during the operation of the battery cell, so that no additional fixing device is required, and has the advantages of good fixing effect and simple structure.

[0058] The first conductive component array 4 and the second conductive component array 5 are respectively arranged on the two long sides of the support panel 1, and the multiple cells in the battery module form a series circuit through the first conductive component array 4 and the second conductive component array 5. The first conductive component array 4 and the second conductive component array 5 respectively include multiple spaced aluminum bars 6. In this technical solution, the aluminum bar 6 has two functions of structural support and conductive connection. The battery cell is fixedly arranged on the aluminum bar 6 and is electrically connected to the aluminum bar 6.

[0059] The first conductive component array 4 and the second conductive component array 5 are respectively composed of a plurality of aluminum bars 6, and the plurality of aluminum bars 6 are not connected end to end but are spaced from each other. According to actual needs, the aluminum bars 6 are used to realize series connection or parallel connection between a plurality of battery cells during assembly.

[0060] The quick release assembly 7 is arranged on the support panel 1, and the thermistor 701 is fixedly arranged on the device through the quick release assembly 7. In the battery module, the thermistor 701 plays a monitoring sampling role. The thermistor 701 in the prior art is usually fixedly arranged on the battery module by glue or other means, which has the problem of inconvenient assembly. The present technical solution provides a more scientific and reasonable thermistor 701 fixing solution through the quick release assembly 7.

[0061] Based on the above structure, multiple battery cells are fixed to form a battery module through the support panel 1 and electrically connected through the first conductive component array 4 and the second conductive component array 5. The overall disassembly and assembly of the battery module is realized based on the locking side panel 2, and the thermistor 701 is fixed to the device using the quick-release component 7. The structure is more optimized, easier to install and disassemble, and better modularization is achieved.

[0062] like Figure 1 and Figure 2 As shown, preferably, a power battery module device with a fixing device further includes a first isolation plate column 8 and a second isolation plate column 9; the first isolation plate column 8 and the second isolation plate column 9 are fixedly arranged on the support panel 1 along the long side direction of the support panel 1, the first isolation plate column 8 and the second isolation plate column 9 are located on the other side opposite to the battery module, a wiring harness fixing groove is formed between the first isolation plate column 8 and the second isolation plate column 9, and the first isolation plate column 8 and the second isolation plate column 9 respectively include a plurality of isolation vertical plates 10 arranged end to end in sequence. In the first isolation plate column 8 and the second isolation plate column 9, the isolation vertical plates 10 are not connected end to end, but are arranged at intervals.

[0063] In the battery module, due to the need for monitoring and collection, or other electrical connection needs, a certain number of wires are usually set up. These wires need to be arranged into bundles through clever structural settings to avoid the phenomenon of messy layout or even connection errors. In order to solve this problem, a first isolation plate column 8 and a second isolation plate column 9 are formed by multiple isolation vertical plates 10, and a wire harness fixing groove is formed between the first isolation plate column 8 and the second isolation plate column 9. The wires in the battery module will be arranged in the wire harness fixing groove, making the structure of the device more scientific.

[0064] like Figure 3As shown, the aluminum bar 6 includes a first flat aluminum plate 601, a second flat aluminum plate 602 and a protruding connection portion 603. The first flat aluminum plate 601 and the second flat aluminum plate 602 are connected to form an integral structure through the protruding connection portion 603, that is, the first flat aluminum plate 601 and the second flat aluminum plate 602 are respectively arranged on both sides of the protruding connection portion 603. A protruding portion facing the upper side of the support panel 1 is formed on the protruding connection portion 603, and the battery cell is fixedly arranged below the protruding connection portion 603 by welding.

[0065] Based on the above technology, the aluminum bar 6 is formed by integrally forming a first plane aluminum plate 601, a second plane aluminum plate 602 and a raised connecting portion 603, and electrical connection is achieved through the first plane aluminum plate 601 and the second plane aluminum plate 602. Based on the structural margin provided by the raised connecting portion 603, the battery cell is fixed under the raised connecting portion 603 by welding. When the battery cell generates heat during operation, expansion due to overheating and subsequent damage can be avoided.

[0066] like Figure 1 and Figure 2 As shown, a plurality of positioning protrusions 101 are respectively arranged on the two long sides of the support panel 1. Figure 3 As shown, positioning through holes 604 are provided on the first flat aluminum plate 601 and the second flat aluminum plate 602 , and the aluminum bar 6 is fixed on the supporting panel 1 by being sleeved and fixed in the positioning through holes 604 by the positioning protrusion 101 .

[0067] The specific structure of the first conductive component array 4 and the first conductive component array 4 is as follows: by inserting the positioning through hole 604 in the aluminum bar 6 into the positioning protrusion 101 in the support panel 1, the aluminum bar 6 can be pre-fixed to the support panel 1, and further fixing can complete the installation of the aluminum bar 6. The plurality of aluminum bars 6 located on one of the long sides of the support panel 1 form the first conductive component array 4, and the plurality of aluminum bars 6 located on the other long sides of the support panel 1 form the second conductive component array 5.

[0068] Based on the above structure, the aluminum bar 6 is fixed on the support panel 1 by the positioning protrusion 101 being sleeved and fixed in the positioning through hole 604, which can ensure the installation accuracy, structural stability and electrical connection reliability.

[0069] like Figure 1 and Figure 2As shown, preferably, the power battery module device with a fixing device in the technical solution is also provided with a plurality of explosion-proof valve ports 11, and the explosion-proof valve ports 11 are arranged through the support panel 1. When the battery module is working, heat may accumulate, which will cause the air pressure in the battery pack to increase. The explosion-proof valve ports 11 are arranged through the support panel 1, and when the air pressure in the battery pack increases, the excess gas can be discharged in time to avoid bulging due to heat.

[0070] like Figure 4 and Figure 5 As shown, preferably, the quick-release assembly 7 includes a side fixing buckle 702, a side connecting plate 703, a side protruding guide assembly and a mounting hole 704, and the thermistor 701 is provided with a side snap-in groove 705 and a side recessed guide assembly; the support panel 1 is connected to the fixed end of the side connecting plate 703, the side fixing buckle 702 is connected to the movable end of the side connecting plate 703, and the side protruding guide assembly is fixedly arranged on the support panel 1; the thermistor 701 is realized by the mutual sleeve connection of the side recessed guide assembly and the side protruding guide assembly. The thermistor 701 is fixed in the up and down directions. When the thermistor 701 is gradually inserted along the direction defined by the side recessed guide assembly and the side raised guide assembly, the side fixing buckle 702 is gradually approached and finally snapped into the side snap-in groove 705. The thermistor 701 is fixed in the horizontal direction by the mutual snap-in connection between the side fixing buckle 702 and the side snap-in groove 705. The mounting hole 704 is opened on the support panel 1. A thermal pad is arranged in the mounting hole 704. The thermistor 701 is fixed on the battery cell through the thermal pad.

[0071] Based on the above structure, the side fixing buckle 702 is fixedly arranged on the supporting panel 1 through the side connecting plate 703, and the two ends of the side connecting plate 703 respectively form a movable end and a fixed end. By utilizing the side clamping groove 705 on the thermistor 701, the side fixing buckle 702 located at the movable end is driven by external force, thereby realizing the rapid disassembly and assembly of the thermistor 701.

[0072] like Figure 4 and Figure 5 As shown, specifically, the side protrusion guide assembly includes a first side guide strip 706 and a second side guide strip 707, the first side guide strip 706 is arranged on the side connecting plate 703 along the horizontal direction; the second side guide strip 707 is arranged on a side limit plate, the side limit plate is fixedly arranged on the support panel 1, the side connecting plate 703 and the side limit plate are arranged opposite to each other, and the thermistor 701 is located between the side connecting plate 703 and the side limit plate.

[0073] Specifically describing the installation process, the first side guide strip 706 and the second side guide strip 707 are respectively inserted into the corresponding side recessed guide components. At this time, the side fixing buckle 702 is not inserted into the side snap-in groove 705. After continuing to push it in, since the side fixing buckle 702 is located at the movable end, when the side fixing buckle 702 reaches the side snap-in groove 705, it can be inserted into the side snap-in groove 705 due to its own elastic force, and then the thermal pad together with the thermistor 701 is fixed in the installation hole 704, the thermistor 701 can be fixed.

[0074] Based on the above technical solution, the side connecting plate 703 and the side limiting plate are relatively arranged, so that the first side guide strip 706 and the second side guide strip 707 are relatively arranged, and the first side guide strip 706 and the second side guide strip 707 are used to ensure that the thermistor 701 will not be offset during installation and disassembly.

[0075] like Figure 1 As shown, preferably, a plurality of wire through holes 12 are respectively provided on the first isolation plate column 8 and the second isolation plate column 9, and the wire through holes 12 are formed on the support panel 1 and located between two adjacent isolation vertical plates 10, and the wire through holes 12 are used to guide the wires from one side to the other side of the support panel 1. The wire through holes 12 are formed between two adjacent isolation vertical plates 10, and the wire through holes 12 are used for wiring, which can meet normal monitoring needs and optimize the overall structure.

[0076] Specifically, the support panel 1 is a plastic structure or an aluminum alloy structure. Using a plastic structure as the support panel 1 can reduce production costs, while using an aluminum alloy structure as the support panel 1 can effectively improve structural strength. When a plastic structure is used as the support panel 1, the positioning protrusion 101 is also a plastic structure. After the aluminum bar 6 is fixed in the positioning through hole 604 through the positioning protrusion 101, the positioning protrusion 101 of the plastic structure can be deformed by heating, thereby fixing the aluminum bar 6; when an aluminum alloy structure is used as the support panel 1, the positioning protrusion 101 is also an aluminum alloy structure. After the aluminum bar 6 is fixed in the positioning through hole 604 through the positioning protrusion 101, the aluminum bar 6 can be fixed by components such as bolts. Which structure to use as the support panel 1 can be selected according to specific needs during production.

[0077] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made according to the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A power battery module device with a fixing device, characterized in that: include: A supporting panel, wherein the supporting panel is a rectangular plate-shaped structure, and is formed with two oppositely disposed short sides and two oppositely disposed long sides; A locking side plate, the locking side plate is arranged on the short side of the supporting panel, the locking side plate is provided with a fixing through hole, a fixing bolt is arranged in the fixing through hole, and the fixing bolt passes through the fixing through hole to fix the locking side plate in the battery pack; A battery module, the battery module is fixedly disposed below the support panel, and the battery module includes a plurality of battery cells; a first conductive component array and a second conductive component array, wherein the first conductive component array and the second conductive component array are respectively arranged on two long sides of the support panel, and a plurality of cells in the battery module form a series circuit through the first conductive component array and the second conductive component array, and the first conductive component array and the second conductive component array respectively include a plurality of aluminum bars arranged at intervals; A quick-release assembly is arranged on the support panel, and the thermistor is fixedly arranged on the device through the quick-release assembly.

2. A power battery module device with a fixing device according to claim 1, characterized in that: Also included is a first column of insulation panels and a second column of insulation panels; The first isolation plate column and the second isolation plate column are fixedly arranged on the support panel along the long side direction of the support panel, the first isolation plate column and the second isolation plate column are located on the other side opposite to the battery module, a wiring harness fixing groove is formed between the first isolation plate column and the second isolation plate column, and the first isolation plate column and the second isolation plate column respectively include a plurality of isolation vertical plates which are sequentially connected end to end.

3. A power battery module device with a fixing device according to claim 1, characterized in that: The aluminum bar includes a first flat aluminum plate, a second flat aluminum plate and a raised connection portion, the first flat aluminum plate and the second flat aluminum plate are connected into an integral structure through the raised connection portion, a raised portion is formed on the raised connection portion toward the top of the support panel, and the battery cell is fixed below the raised connection portion by welding.

4. A power battery module device with a fixing device according to claim 3, characterized in that: A plurality of positioning protrusions are respectively arranged on the two long sides of the support panel, and positioning through holes are arranged on the first flat aluminum plate and the second flat aluminum plate, and the aluminum bar is fixed on the support panel by being sleeved and fixed in the positioning through holes by the positioning protrusions; The plurality of aluminum bars located on one of the long sides of the support panel form the first conductive component array, and the plurality of aluminum bars located on the other long sides of the support panel form the second conductive component array.

5. The power battery module device with a fixing device according to claim 1, characterized in that: It also includes a plurality of explosion-proof valve ports, which are arranged through the support panel.

6. The power battery module device with a fixing device according to claim 1, characterized in that: The quick-release assembly includes a side fixing buckle, a side connecting plate, a side protruding guide assembly and a mounting hole, and the thermistor is provided with a side clamping groove and a side recessed guide assembly; The support panel is connected to the fixed end of the side connecting plate, the side fixing buckle is connected to the movable end of the side connecting plate, and the side protrusion guide assembly is fixedly arranged on the support panel; The thermistor is fixed in the vertical direction by the mutual engagement of the side recessed guide assembly and the side raised guide assembly. When the thermistor is gradually inserted along the direction defined by the side recessed guide assembly and the side raised guide assembly, the side fixing buckle gradually approaches and finally engages in the side clamping groove. The thermistor is fixed in the horizontal direction by the mutual engagement of the side fixing buckle and the side clamping groove. The mounting hole is opened on the supporting panel, a thermal pad is arranged in the mounting hole, and the thermistor is fixed on the battery core through the thermal pad.

7. A power battery module device with a fixing device according to claim 6, characterized in that: The side protrusion guide assembly includes a first side guide strip and a second side guide strip, wherein the first side guide strip is arranged on the side connecting plate along a horizontal direction; The second lateral guide strip is arranged on a side limit plate, the side limit plate is fixedly arranged on the supporting panel, the side connecting plate and the side limit plate are arranged opposite to each other, and the thermistor is located between the side connecting plate and the side limit plate.

8. The power battery module device with a fixing device according to claim 2, characterized in that: A plurality of wire through holes are respectively arranged on the first isolation plate column and the second isolation plate column. The wire through holes are formed in the support panel and located between two adjacent isolation vertical plates. The wire through holes are used to guide wires from one side of the support panel to the other side.

9. A power battery module device with a fixing device according to any one of claims 1 to 8, characterized in that: The battery module is fixedly bonded to the bottom of the support panel by means of thermally conductive silica gel.

10. A power battery module device with a fixing device according to any one of claims 1 to 8, characterized in that: The supporting panel is a plastic structure or an aluminum alloy structure.

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