New energy automobile battery module temperature detection device based on multi-sensor array

Abstract

The application relates to the technical field of new energy vehicles, and discloses a new energy vehicle battery module temperature detection device based on a multi-sensor array, a shell, a battery pack and a fixing plate installed in the shell, an adjusting assembly is installed on the surface of the fixing plate through fixing bolts, an installation groove is arranged on the surface of the fixing plate, the adjusting assembly is arranged in the installation groove, and a first temperature sensor and a second temperature sensor are installed on the adjusting assembly. The new energy vehicle battery module temperature detection device based on the multi-sensor array can not only adjust the horizontal position of the first temperature sensor, but also fix the first temperature sensor after the first temperature sensor moves to the target detection area on the side of the battery cell, so that the horizontal displacement of the first temperature sensor caused by vibration during operation is avoided.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, specifically to a temperature detection device for new energy vehicle battery modules based on a multi-sensor array. Background Technology

[0002] The battery module of the tram provides power to the tram. The battery module of the tram consists of battery cells connected in series, parallel or series-parallel, and is a battery assembly with only one pair of positive and negative output terminals. It should also include a casing, management and protection devices and other components.

[0003] An existing patent (publication number: CN218973676U) discloses a battery module temperature detection device, including a battery module housing, a separator, and a battery module. The separator and the battery module are cross-installed inside the battery module housing. It also includes a protective detection mechanism for detecting and protecting the battery module. The protective detection mechanism is installed on the battery module housing and includes a first measuring chamber and a second measuring chamber.

[0004] Although this application uses temperature sensors to detect the temperature of heat-conducting plates one and two, thus enabling temperature detection for each battery module, and uses protective outer plates and top plates to seal the battery modules, thereby protecting the battery modules and temperature sensors from water damage, this application only uses heat-conducting plates to measure the temperature of the terminals. It cannot detect the temperature of the central cells, edge cells, and cells at different locations within the module, resulting in a temperature detection blind spot, which may lead to misjudgment of the risk of battery thermal runaway. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a temperature detection device for new energy vehicle battery modules based on a multi-sensor array, which solves the problems of blind spots and inability to fully reflect the temperature distribution of battery cells in existing battery module temperature detection technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a temperature detection device for a new energy vehicle battery module based on a multi-sensor array, comprising a housing and a battery pack and a fixing plate installed inside the housing. An adjustment component is installed on the surface of the fixing plate by fixing bolts. An installation groove is formed on the surface of the fixing plate, and the adjustment component passes through the installation groove. A first temperature sensor and a second temperature sensor are installed on the adjustment component.

[0007] The adjustment assembly includes a mounting plate fixed to the side of a fixed plate, a support plate fixed to the side of the mounting plate, a movable block provided on the upper surface of the support plate, a first telescopic rod fixed to the surface of the movable block, a pad fixed to the upper end of the first telescopic rod, a first spring sleeved around the outer periphery of the first telescopic rod, and the two ends of the first spring fixed to the upper surface of the movable block and the lower surface of the pad, respectively. The first temperature sensor is fixed to the upper surface of the pad and moves above the support plate via the movable block.

[0008] Furthermore, a connecting plate is provided on the side of the movable block, and a slider is provided on the side of the movable block. A groove corresponding to the slider is opened on the surface of the connecting plate, and the slider moves inside the groove. A threaded rod is rotatably connected to the bottom surface of the support plate. A top plate is provided inside the support plate. The movable block overlaps the upper surface of the top plate. The threaded rod is threadedly connected to the top plate. The upper end of the threaded rod passes through the support plate and extends above it. A knob is fixed at the top of the threaded rod. The movable block moves vertically above the support plate through the threaded rod and the connecting plate.

[0009] Furthermore, a connecting block is fixed to the side of the connecting plate, a push block is fixed to the side of the connecting block, a telescopic groove is formed on the surface of the connecting block, a limit rod is fixed to the side of the push block, the other end of the limit rod passes through the telescopic groove, and a second spring is sleeved on the outer periphery of the limit rod. A fixing groove is formed on the side of the support plate, and a fixing block corresponding to the fixing groove is provided on the side of the push block.

[0010] Furthermore, a second telescopic rod is fixed to the side of the mounting plate, and a temperature-conducting plate is fixed to the other end of the second telescopic rod. The side of the temperature-conducting plate is arc-shaped, and the second temperature sensor is embedded in the side of the mounting plate, with the temperature-conducting plate and the second temperature sensor in contact.

[0011] Furthermore, the battery pack includes multiple battery cells arranged in a matrix, with heat dissipation gaps reserved between adjacent battery cells. The support plate and the first temperature sensor are both installed inside the heat dissipation gaps, and the detection end of the first temperature sensor is in contact with the surface of the battery cell.

[0012] Furthermore, there are multiple adjustment components, and the multiple adjustment components are respectively set at the positions of the corresponding center cell, edge cell and corner cell. Each adjustment component is equipped with a first temperature sensor and a second temperature sensor to form a multi-sensor array.

[0013] Furthermore, a first spring is coaxially sleeved on the outer periphery of the first telescopic rod. One end of the first spring is fixedly connected to the upper surface of the moving block, and the other end of the first spring is fixedly connected to the lower surface of the pad. The first temperature sensor is fixedly attached to the upper surface of the pad, and the detection end of the first temperature sensor is tightly attached to the side of the battery cell.

[0014] Furthermore, the fixing groove is continuously and evenly spaced along the length of the support plate, and the inner cavity size of the fixing groove is adapted to the outer dimensions of the fixing block on the side of the push block. The axis of the limiting rod is perpendicular to the length of the support plate, and the outer wall of the limiting rod slides against the inner wall of the telescopic groove. The second spring is coaxially sleeved on the outer circumference of the limiting rod, and the two ends of the second spring are fixedly connected to the side of the push block and the side of the connecting block, respectively.

[0015] Furthermore, the axis of the second telescopic rod is perpendicular to the side of the mounting plate, and a second spring is coaxially sleeved on the outer periphery of the second telescopic rod. One end of the second spring is fixedly connected to the side of the mounting plate, and the other end of the second spring is fixedly connected to the side of the temperature-conducting plate. The arc-shaped surface of the temperature-conducting plate is in contact with the electrode surface of the battery cell, and the detection end of the second temperature sensor is fixedly in contact with the end face of the temperature-conducting plate near the second telescopic rod.

[0016] Furthermore, the mounting grooves on the surface of the fixing plate are distributed one-to-one with the heat dissipation gaps between the cells. The mounting plate of the adjustment assembly is fixed to the surface of the fixing plate by fixing bolts. The support plate passes through the mounting groove and extends into the heat dissipation gap between adjacent cells. The first temperature sensor and the second temperature sensor on all adjustment assemblies together constitute a multi-sensor temperature detection array with full coverage.

[0017] Compared with the prior art, the technical solution of the present invention has the following beneficial effects: This new energy vehicle battery module temperature detection device, based on a multi-sensor array, uses a push block, a limiting rod, a fixing block, and a fixing groove to not only adjust the horizontal position of the first temperature sensor but also fix it after it moves to the target detection area on the side of the battery cell, preventing horizontal displacement of the first temperature sensor due to vibration during operation. Simultaneously, the vertical height of the moving block and the first temperature sensor can be adjusted by raising and lowering the top plate. Combined with the first telescopic rod and the first spring, this ensures that the detection end of the first temperature sensor closely contacts the surface of battery cells at different heights, avoiding rigid contact damage. Furthermore, multiple adjustment components are respectively set for the center, edge, and corner battery cells. Together with the first and second temperature sensors installed on each adjustment component, a multi-sensor array covering the entire battery module can be formed, collecting surface and terminal temperature data of battery cells at different locations. This solves the problem of blind spots and the inability to fully reflect the temperature distribution of battery cells in existing technologies. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the entire application; Figure 2 This is a structural diagram of the battery module, support plate, and adjustment assembly in this application; Figure 3 This is a detailed structural diagram of the modified components in this application; Figure 4 For this application Figure 3 Enlarged view of point A in the middle; Figure 5 For this application Figure 3 Enlarged view of point B in the middle.

[0019] In the picture: 1. Casing; 2. Battery pack; 201. Battery cell; 3. Mounting plate; 4. Adjustment components; 401. Mounting plate; 402. Support plate; 403. Moving block; 404. First telescopic rod; 405. Pad plate; 406. Top plate; 407. Threaded rod; 408. Connecting plate; 409. Connecting block; 410. Push block; 411. Telescopic groove; 412. Limiting rod; 413. Fixing groove; 414. Second telescopic rod; 415. Temperature guiding plate; 5. First temperature sensor; 6. Second temperature sensor. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Please see Figure 1-5 The new energy vehicle battery module temperature detection device based on a multi-sensor array in this embodiment includes a housing 1, a battery pack 2 and a fixing plate 3 installed inside the housing 1. An adjustment component 4 is installed on the surface of the fixing plate 3 by fixing bolts. An installation groove is opened on the surface of the fixing plate 3. The adjustment component 4 passes through the installation groove. A first temperature sensor 5 and a second temperature sensor 6 are installed on the adjustment component 4.

[0022] Please see Figure 1 , Figure 2 and Figure 3The adjustment assembly 4 includes a mounting plate 401 fixed to the side of the fixing plate 3. A support plate 402 is fixed to the side of the mounting plate 401. A moving block 403 is provided on the upper surface of the support plate 402. A first telescopic rod 404 is fixed to the surface of the moving block 403. A pad 405 is fixed to the upper end of the first telescopic rod 404. A first spring is sleeved on the outer periphery of the first telescopic rod 404. The two ends of the first spring are respectively fixed to the upper surface of the moving block 403 and the lower surface of the pad 405. A first temperature sensor 5 is fixed to the upper surface of the pad 405. The first temperature sensor 5 moves above the support plate 402 through the moving block 403. The moving block 403 can drive the first temperature sensor 5 to move horizontally to adapt to different detection areas of the battery cell 201. At the same time, the first telescopic rod 404 and the first spring can not only prevent the first temperature sensor 5 from damaging the surface of the battery cell 201 due to rigid contact, but also make the detection end of the first temperature sensor 5 fit tightly with the battery cell 201 when it heats up and expands.

[0023] Please see Figure 3 , Figure 4 and Figure 5 A connecting plate 408 is provided on the side of the movable block 403, and a slider is provided on the side of the movable block 403. A groove corresponding to the slider is opened on the surface of the connecting plate 408, and the slider moves inside the groove. A threaded rod 407 is rotatably connected to the bottom surface of the support plate 402. A top plate 406 is provided inside the support plate 402. The movable block 403 overlaps the upper surface of the top plate 406. The threaded rod 407 is threadedly connected to the top plate 406. The upper end of the threaded rod 407 passes through the support plate 402 and extends above it. A knob is fixed at the top of the threaded rod 407. The movable block 403 moves vertically on the support plate via the threaded rod 407 and the connecting plate 408. Above 402, rotating the knob drives the threaded rod 407 to rotate. Since the threaded rod 407 is threadedly connected to the top plate 406, the threaded rod 407 can drive the top plate 406 to move vertically up and down. When the top plate 406 rises, it pushes the moving block 403 to move upward, thereby adjusting the position of the first temperature sensor 5 in the vertical direction so that the first temperature sensor 5 can be adapted to the surface of the battery cell 201 at different heights. When the top plate 406 falls, the moving block 403 moves down with the top plate 406 under its own gravity, avoiding scratching the surface of the battery cell 201 during the installation of the first temperature sensor 5 into the heat dissipation gap.

[0024] Please see Figure 3 and Figure 4A connecting block 409 is fixed to the side of the connecting plate 408, and a push block 410 is fixed to the side of the connecting block 409. A telescopic groove 411 is formed on the surface of the connecting block 409. A limit rod 412 is fixed to the side of the push block 410, with the other end of the limit rod 412 passing through the telescopic groove 411. A second spring is sleeved around the outer periphery of the limit rod 412. A fixing groove 413 is formed on the side of the support plate 402, and a fixing block corresponding to the fixing groove 413 is formed on the side of the push block 410. When it is necessary to move the moving block 403... When adjusting the horizontal position, first pull the push block 410. The push block 410 drives the limit rod 412 to slide within the telescopic groove 411. At this time, the fixed block separates from the fixed groove 413, thus releasing the restriction on the horizontal movement of the moving block 403. After the adjustment is completed, release the push block 410. The second spring pulls the push block 410 back to its original position, causing the fixed block to engage with the corresponding fixed groove 413, thereby locking the moving block 403 and preventing it from shifting due to vibration during operation, which would affect the accuracy of temperature detection. Please see Figure 3 and Figure 5 A second telescopic rod 414 is fixed to the side of the mounting plate 401, and a temperature-conducting plate 415 is fixed to the other end of the second telescopic rod 414. The side of the temperature-conducting plate 415 is arc-shaped. The second temperature sensor 6 is embedded in the side of the mounting plate 401, and the temperature-conducting plate 415 is in close contact with the second temperature sensor 6. The second telescopic rod 414 can push the temperature-conducting plate 415 into close contact with the electrode post of the battery cell 201. The arc-shaped surface of the temperature-conducting plate 415 can increase the contact area with the electrode post and improve the heat transfer efficiency. At the same time, the second telescopic rod 414 and the second spring can adapt to the electrode posts of the battery cell 201 of different sizes.

[0025] Please see Figure 1 and Figure 2The battery pack 2 includes multiple battery cells 201 arranged in a matrix, with heat dissipation gaps reserved between adjacent cells 201. The support plate 402 and the first temperature sensor 5 are both installed inside these heat dissipation gaps. The detection end of the first temperature sensor 5 is in contact with the surface of the battery cell 201. The matrix arrangement of the battery cells 201 results in a regular distribution of the heat dissipation gaps. After the support plate 402 passes through the heat dissipation gaps, it allows the first temperature sensor 5 to be placed between adjacent cells 201, enabling direct contact detection of the side temperature of the battery cell 201. This avoids the problem of environmental interference in traditional non-contact temperature measurement. The adjustment assembly 4 has multiple components. Furthermore, multiple adjustment components 4 are respectively set at the positions of the corresponding central cell 201, edge cell 201, and corner cell 201. Each adjustment component 4 is equipped with a first temperature sensor 5 and a second temperature sensor 6 to form a multi-sensor array. By arranging multiple adjustment components 4 at different positions such as the central cell 201, edge cell 201, and corner cell 201, the first temperature sensor 5 and the second temperature sensor 6 on each component can synchronously collect temperature data from the surface of the cell 201 and the electrode post, forming a multi-sensor array covering the entire area of ​​the battery module, eliminating the detection blind spots existing in traditional single-point or local temperature measurement.

[0026] It should be noted that both the first temperature sensor 5 and the second temperature sensor 6 are high-precision digital temperature sensors, specifically the DS18B20 model. Their measurement range covers -40℃ to 125℃, with an accuracy of ±0.5℃, meeting the temperature detection requirements of new energy vehicle battery modules under different operating conditions. Furthermore, both the first temperature sensor 5 and the second temperature sensor 6 are connected to an external battery management system (BMS) via wires, transmitting the real-time collected temperature data to the BMS. The BMS comprehensively analyzes and processes the temperature information fed back from the multi-sensor array. It can not only monitor the temperature status of each cell 201 in real time but also determine the temperature distribution uniformity of the battery module by comparing temperature differences between cells 201 at different locations. When an abnormal temperature increase or temperature gradient exceeding a set threshold is detected in a certain area of ​​cell 201, the BMS can promptly issue an early warning signal and take corresponding thermal management measures, thereby effectively preventing battery thermal runaway accidents.

[0027] In this invention, a first spring is coaxially sleeved on the outer periphery of the first telescopic rod 404. One end of the first spring is fixedly connected to the upper surface of the moving block 403, and the other end of the first spring is fixedly connected to the lower surface of the pad 405. The first temperature sensor 5 is fixedly attached to the upper surface of the pad 405, and the detection end of the first temperature sensor 5 is tightly attached to the side of the battery cell 201.

[0028] In this invention, the fixing groove 413 is continuously and evenly spaced along the length of the support plate 402. The inner cavity size of the fixing groove 413 is adapted to the outer dimensions of the fixing block on the side of the push block 410. The axis of the limiting rod 412 is perpendicular to the length of the support plate 402. The outer wall of the limiting rod 412 slides against the inner wall of the telescopic groove 411. The second spring is coaxially sleeved on the outer periphery of the limiting rod 412. The two ends of the second spring are fixedly connected to the side of the push block 410 and the side of the connecting block 409, respectively.

[0029] In this invention, the axis of the second telescopic rod 414 is perpendicular to the side of the mounting plate 401. A second spring is coaxially sleeved on the outer periphery of the second telescopic rod 414. One end of the second spring is fixedly connected to the side of the mounting plate 401, and the other end of the second spring is fixedly connected to the side of the temperature-conducting plate 415. The arc-shaped surface of the temperature-conducting plate 415 is in contact with the electrode surface of the battery cell 201. The detection end of the second temperature sensor 6 is fixedly attached to the end face of the temperature-conducting plate 415 near the second telescopic rod 414.

[0030] In this invention, the mounting grooves on the surface of the fixing plate 3 correspond one-to-one with the heat dissipation gaps between the battery cells 201. The mounting plate 401 of the adjustment assembly 4 is fixed to the surface of the fixing plate 3 by fixing bolts. The support plate 402 passes through the mounting grooves and extends into the heat dissipation gaps between adjacent battery cells 201. The first temperature sensor 5 and the second temperature sensor 6 on all adjustment assemblies 4 together constitute a multi-sensor temperature detection array with full coverage.

[0031] The working principle of the above embodiments is as follows: First, the fixing plate 3 is installed in the corresponding position inside the housing 1. Then, the operator pulls the push block 410, which drives the limiting rod 412 fixed on its side and the fixing block to move synchronously, so that the fixing block is dislodged from the fixing groove 413. Then, the operator pushes the push block 410, which drives the connecting block 409 and the moving block 403 connected to it to slide along the surface of the support plate 402, adjusting the position of the first temperature sensor 5 in the horizontal direction so that it corresponds to the detection area of ​​the target cell 201. After the position adjustment is completed, the operator releases the push block 410. The second spring drives the limiting rod 412 to reset under its own elastic force, so that the fixing block is re-locked into the fixing groove 413 in the corresponding position on the side of the support plate 402, locking the horizontal position of the moving block 403.

[0032] Next, the worker inserts the adjustment component 4 through the corresponding mounting slot on the surface of the fixing plate 3 and into the pre-reserved heat dissipation gap between adjacent battery cells 201. Then, the mounting plate 401 is secured with fixing bolts to prevent the adjustment component 4 from loosening or shifting during operation. After installation, the worker rotates the knob, causing the threaded rod 407 to rotate. Since the threaded rod 407 is threadedly connected to the connecting plate 408, and the connecting plate 408 slides against the sliding groove on the side of the moving block 403 via a slider, the threaded rod 407 can drive the connecting plate 408 and the moving block 403 to move vertically. This adjusts the height of the first temperature sensor 5 so that its detection end is in close contact with the surface of the battery cell 201. When the detection end of the first temperature sensor 5 contacts the surface of the battery cell 201, the first spring on the outer periphery of the first telescopic rod 404 will undergo elastic deformation due to compression. Its reaction force makes the first temperature sensor 5 fit tightly against the surface of the battery cell 201, ensuring the accuracy of temperature detection. At the same time, the second telescopic rod 414 on the side of the mounting plate 401 pushes the temperature-conducting plate 415 to fit against the electrode of the battery cell 201, so that the second temperature sensor 6 can indirectly obtain the temperature data of the electrode area through the temperature-conducting plate 415.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature detection device for a new energy vehicle battery module based on a multi-sensor array, comprising a housing (1) and a battery pack (2) and a fixing plate (3) installed inside the housing (1), wherein an adjustment component (4) is mounted on the surface of the fixing plate (3) by fixing bolts, characterized in that: The surface of the fixing plate (3) is provided with an installation groove, the adjustment component (4) is inserted into the installation groove, and the adjustment component (4) is equipped with a first temperature sensor (5) and a second temperature sensor (6). The adjustment component (4) includes a mounting plate (401) fixed to the side of the fixing plate (3), a support plate (402) fixed to the side of the mounting plate (401), a moving block (403) provided on the upper surface of the support plate (402), a first telescopic rod (404) fixed on the surface of the moving block (403), a pad (405) fixed at the upper end of the first telescopic rod (404), a first temperature sensor (5) fixed on the upper surface of the pad (405), and the first temperature sensor (5) moving above the support plate (402) via the moving block (403).

2. The temperature detection device for new energy vehicle battery modules based on a multi-sensor array according to claim 1, characterized in that: The movable block (403) is provided with a connecting plate (408) on its side and a slider on its side. The surface of the connecting plate (408) is provided with a groove corresponding to the slider, and the slider moves inside the groove. The bottom surface of the support plate (402) is rotatably connected with a threaded rod (407). The support plate (402) is provided with a top plate (406) inside. The movable block (403) overlaps the upper surface of the top plate (406). The threaded rod (407) is threadedly connected to the top plate (406). The upper end of the threaded rod (407) passes through the support plate (402) and extends above it. A knob is fixed at the top of the threaded rod (407). The movable block (403) moves vertically above the support plate (402) through the threaded rod (407) and the connecting plate (408).

3. The temperature detection device for new energy vehicle battery modules based on a multi-sensor array according to claim 2, characterized in that: A connecting block (409) is fixed to the side of the connecting plate (408), and a push block (410) is fixed to the side of the connecting block (409). A telescopic groove (411) is opened on the surface of the connecting block (409). A limit rod (412) is fixed to the side of the push block (410). The other end of the limit rod (412) passes through the telescopic groove (411), and a second spring is sleeved on the outer periphery of the limit rod (412). A fixing groove (413) is opened on the side of the support plate (402), and a fixing block corresponding to the fixing groove (413) is provided on the side of the push block (410).

4. The temperature detection device for new energy vehicle battery modules based on a multi-sensor array according to claim 1, characterized in that: The mounting plate (401) is fixed with a second telescopic rod (414) on one side, and a temperature-conducting plate (415) is fixed at the other end of the second telescopic rod (414). The side of the temperature-conducting plate (415) is arc-shaped, and the second temperature sensor (6) is embedded on the side of the mounting plate (401). The temperature-conducting plate (415) is in contact with the second temperature sensor (6).

5. The temperature detection device for a new energy vehicle battery module based on a multi-sensor array according to claim 1, characterized in that: The battery pack (2) includes multiple cells (201), which are arranged in a matrix and have a heat dissipation gap between adjacent cells (201). The support plate (402) and the first temperature sensor (5) are both installed inside the heat dissipation gap, and the detection end of the first temperature sensor (5) is in contact with the surface of the cell (201).

6. The temperature detection device for a new energy vehicle battery module based on a multi-sensor array according to claim 1, characterized in that: There are multiple adjustment components (4), and the multiple adjustment components (4) are respectively set at the positions of the corresponding center cell (201), edge cell (201) and corner cell (201). Each adjustment component (4) is equipped with a first temperature sensor (5) and a second temperature sensor (6) to form a multi-sensor array.

7. The temperature detection device for a new energy vehicle battery module based on a multi-sensor array according to claim 1, characterized in that: A first spring is coaxially sleeved on the outer periphery of the first telescopic rod (404). One end of the first spring is fixedly connected to the upper surface of the moving block (403), and the other end of the first spring is fixedly connected to the lower surface of the pad (405). The first temperature sensor (5) is fixedly attached to the upper surface of the pad (405), and the detection end of the first temperature sensor (5) is tightly attached to the side of the battery cell (201).

8. The temperature detection device for a new energy vehicle battery module based on a multi-sensor array according to claim 3, characterized in that: The fixing groove (413) is continuously and evenly spaced along the length of the support plate (402). The inner cavity size of the fixing groove (413) is adapted to the outer dimensions of the fixing block on the side of the push block (410). The axis of the limiting rod (412) is perpendicular to the length of the support plate (402). The outer wall of the limiting rod (412) slides against the inner wall of the telescopic groove (411). The second spring is coaxially sleeved on the outer periphery of the limiting rod (412). The two ends of the second spring are fixedly connected to the side of the push block (410) and the side of the connecting block (409), respectively.

9. The temperature detection device for a new energy vehicle battery module based on a multi-sensor array according to claim 4, characterized in that: The axis of the second telescopic rod (414) is perpendicular to the side of the mounting plate (401). A second spring is coaxially sleeved on the outer periphery of the second telescopic rod (414). One end of the second spring is fixedly connected to the side of the mounting plate (401), and the other end of the second spring is fixedly connected to the side of the temperature-conducting plate (415). The arc-shaped surface of the temperature-conducting plate (415) is in contact with the electrode surface of the battery cell (201). The detection end of the second temperature sensor (6) is fixedly attached to the end face of the temperature-conducting plate (415) near the second telescopic rod (414).

10. The temperature detection device for a new energy vehicle battery module based on a multi-sensor array according to claim 6, characterized in that: The mounting grooves on the surface of the fixing plate (3) correspond one-to-one with the heat dissipation gaps between the cells (201). The mounting plate (401) of the adjustment assembly (4) is fixed to the surface of the fixing plate (3) by fixing bolts. The support plate (402) passes through the mounting groove and extends into the heat dissipation gap between adjacent cells (201). The first temperature sensor (5) and the second temperature sensor (6) on all adjustment assemblies (4) together constitute a multi-sensor temperature detection array with full coverage.

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