A sensor mounting bracket and battery pack

Abstract

This utility model discloses a sensor mounting bracket and a battery pack. The sensor mounting bracket includes a bracket body, a bracket mounting part, and a sensor mounting part. A sensor limiting part is provided on the bracket body to prevent sensor deflection. The sensor mounting part is configured to be fixedly connected to the sensor. The sensor mounting part is fixedly connected to the bracket body. The mounting direction of the sensor on the sensor mounting part and the insertion direction of the sensor's connector are both a first direction. This utility model's sensor mounting bracket, by adding a limiting part to the bracket body, fixes the sensor on the sensor mounting part and restricts sensor deflection, thus at least solving the problem mentioned in the background art of existing sensors being difficult to prevent deflection during installation or use, and difficult to achieve stable installation.

Description

Technical Field

[0001] This utility model belongs to the field of battery pack technology, specifically relating to a sensor mounting bracket and a battery pack. Background Technology

[0002] With the rapid development of new energy vehicles and energy storage technologies, lithium-ion batteries are widely used due to their high energy density and long cycle life. However, batteries are prone to thermal runaway under conditions such as overcharging, short circuits, and mechanical abuse, posing a significant threat to life and property safety. Therefore, real-time and accurate monitoring of the internal state of the battery pack and early warning of thermal runaway have become the core tasks of battery safety management systems.

[0003] Among numerous monitoring methods, pressure sensors, as a direct and efficient detection unit, play an irreplaceable and crucial role in battery pack risk early warning systems.

[0004] However, the actual placement of pressure sensors within battery packs presents significant challenges. Some sensor models on the market, due to their structural characteristics, are difficult to install stably and effectively prevent deflection during use. If the sensor rotates or deflects during installation, it may cause twisting or damage to its electrical connection terminals, or displacement of the sealing ring, leading to poor contact, signal distortion, seal failure, or even permanent damage to the sensor.

[0005] In summary, there is an urgent need to develop a sensor mounting bracket that can effectively solve the problem of preventing sensor rotation during installation and use, improve installation stability and reliability, and has good versatility and ease of assembly, so as to improve the safety performance of the entire battery pack and extend its service life. Utility Model Content

[0006] One of the objectives of this utility model is to provide a sensor mounting bracket, which includes a bracket body, a bracket mounting part, and a sensor mounting part. By adding a limiting part to the bracket body, the sensor is fixedly mounted on the sensor mounting part, and the sensor deflection is limited by the limiting part. This at least solves the problem mentioned in the background art that existing sensors are difficult to prevent deflection during installation or use, and are difficult to achieve stable installation.

[0007] The second objective of this utility model is to provide a battery pack that uses the aforementioned sensor mounting bracket, which solves the problems of stable installation and anti-deflection of the sensor within the battery pack, avoids sensor damage or failure, ensures normal sensor operation, extends sensor lifespan, and reduces the probability of delayed detection of battery pack thermal runaway.

[0008] To achieve the above objectives, this utility model discloses a sensor mounting bracket for a battery pack and for fixing a sensor. The sensor mounting bracket includes: A support body, wherein a sensor limiting part is provided on the support body, and the sensor limiting part is configured to prevent the sensor from deflecting; A bracket mounting portion is configured to mount a sensor mounting bracket onto a battery pack housing, and the bracket mounting portion is fixedly connected to the bracket body. The sensor mounting part is configured to be fixedly connected to the sensor; the sensor mounting part is fixedly connected to the bracket body; the mounting direction of the sensor on the sensor mounting part and the insertion direction of the sensor's insertion part are both a first direction.

[0009] As an optional implementation, the sensor mounting part includes a mounting beam. During sensor installation, the sensor's connecting part is placed on the mounting beam and is fixedly connected to the mounting beam.

[0010] As an optional implementation, a connector is provided on the mounting beam, and the axis of the connector is in the first direction. When the sensor is installed, the connecting part of the sensor is placed on the mounting beam and connected to the connector.

[0011] As an optional implementation, the connector is a sensor connection hole. During sensor installation, the sensor connection part is placed on the mounting beam, and the sensor connection part is fixedly connected to the mounting beam by connecting screws passing through the sensor connection part and the sensor connection hole.

[0012] As an optional implementation, the bracket body includes a frame, and the sensor mounting part is fixedly connected to the frame. When the sensor is installed, the sensor is placed inside the frame, and the side wall of the frame located outside the sensor serves as the sensor limiting part.

[0013] As an optional implementation, the sensor mounting part is connected to the frame and divides the frame into two detection part receiving cavities; during sensor installation, the two detection parts on the sensor are respectively placed in the two detection part receiving cavities; The detection part receiving cavity is a cavity with openings at both ends. After the detection part of the sensor is placed inside the detection part receiving cavity, the detection part extends out from the detection part receiving cavity.

[0014] As an optional implementation, the frame is a rectangular frame, and the detector housing cavity is a rectangular cavity.

[0015] As an optional implementation, a plurality of limiting ribs are provided on the inner sidewall of the frame, and the length direction of the limiting ribs is along the first direction.

[0016] As an optional implementation, after the sensor's detection part is placed in the detection part receiving cavity, the distance between the sensor's detection part and the surface of the limiting rib that is closer to it is 0.5-1.0 mm.

[0017] As an optional implementation, the bracket mounting part includes a mounting connecting block, the mounting connecting block being provided with a bracket mounting hole, the axial direction of the bracket mounting hole being a first direction.

[0018] A battery pack includes at least a battery pack housing, a sensor, and the aforementioned sensor mounting bracket, wherein the sensor is mounted on the sensor mounting bracket; the battery pack housing includes an upper housing and a lower housing, the sensor mounting bracket is mounted on the lower housing, the sensor mounting portion faces the upper housing, and the direction of the virtual line connecting the center position of the upper housing to the center position of the lower housing is a first direction.

[0019] As an alternative implementation, the battery pack also includes a moisture-absorbing sheet for absorbing condensate from the upper housing. The moisture-absorbing sheet is disposed on the inner surface of the upper housing, and is disposed at least at a position facing the insertion portion of the sensor.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a sensor mounting bracket, which includes a bracket body, a bracket mounting part, and a sensor mounting part. The sensor is mounted on the sensor mounting part, and the mounting direction of the sensor on the sensor mounting part and the insertion direction of the sensor's insertion part are both in a first direction, which facilitates the installation of the sensor. At the same time, a sensor limiting part is provided on the bracket body to prevent the sensor from deflecting, which solves the problem of rotation and deflection during the installation of existing sensors, ensures that the sensor is stably installed on the sensor bracket, avoids the sensor from being twisted or damaged by force during installation or use, ensures the normal operation of the sensor, and extends the service life of the sensor.

[0021] The battery pack of this utility model adopts the aforementioned sensor mounting bracket, which mounts the sensor inside the battery pack on the sensor mounting bracket. This effectively avoids the problems of deflection and shaking of the sensor during installation and / or operation, prevents sensor damage or failure, ensures normal operation of the sensor, and extends the service life of the sensor. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is one embodiment of a sensor.

[0024] Figure 2 This is one embodiment of the sensor mounting bracket in this application.

[0025] Figure 3 This is a schematic diagram of the sensor being installed on the sensor mounting bracket.

[0026] Figure 4 for Figure 3 The main view.

[0027] Explanation of key figure labels: 01. Connecting part; 11. Connecting boss; 111. Connecting hole; 02. Sensor body; 03. Insertion part; 04. Clearance groove; 05. Detection part; 10. Sensor; 20. Sensor mounting bracket; 2. Sensor mounting part; 21. Mounting beam; 22. Connector; 221. Sensor connection hole; 3. Bracket mounting part; 31. Mounting connecting block; 32. Bracket mounting hole; 4. Bracket body; 40. Sensor limiting part; 41. Frame; 5. Limiting rib. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0030] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0031] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0032] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0033] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0034] Please see Figure 1 An embodiment of a sensor 10 is provided.

[0035] read Figure 1 The sensor 10 includes a connecting part 01 and a sensor 10 body 02. At least one sensor 10 body 02 is disposed on the sensor 10. Figure 1 In the middle, there are two sensor bodies 02 in sensor 10.

[0036] The connecting part 01 is used to mount the sensor 10 on the sensor mounting bracket 20. Figure 1 In the middle, the two sensor bodies 10 are located on both sides of the sensor mounting bracket 20 to ensure the balance of the sensor 10 and to keep the sensor 10 balanced and stable after installation.

[0037] like Figure 1 The connecting portion 01 on the sensor 10 includes a connecting boss 11, on which a connecting hole 111 is provided. The axial direction of the connecting hole 111 is a first direction. The two sensor bodies 02 are respectively fixed to opposite sides of the connecting boss 11, i.e., along a second direction. The two sensor bodies 02 are respectively located on both sides of the connecting portion 01, and the first direction is parallel to the second direction. Please refer to [link / reference]. Figure 1 The X direction is the first direction, and the Y direction is the second direction.

[0038] Please see Figure 1 The sensor 10 body 02 is fixedly connected to the connecting part 01. The sensor 10 body 02 includes a detection part 05 and a plug-in part 03, and the detection part 05 and the plug-in part 03 are fixedly connected and electrically conductive. The plug-in part 03 is an interface structure for connecting to external devices. The insertion and removal direction of the plug-in part 03 is consistent with the installation direction of the connecting part 01, and both are the first direction, i.e. Figure 1 In the X direction. The connecting part 01 and the insertion part 03 are arranged along the second direction.

[0039] like Figure 1 The sensor 10 has a clearance groove 04 between the two detection parts 05. The bottom of the clearance groove 04 is the bottom surface of the connecting boss 11, and the axis of the connecting hole 111 passes through the center of the bottom of the clearance groove 04. When installing the sensor 10, the sensor mounting part 2 is placed in the clearance groove 04, so that the connecting part 01 of the sensor 10 is mounted on the mounting beam 21 of the sensor mounting part 2. The sensor 10 is fixedly installed on the sensor mounting bracket 20 by connecting bolts and other connecting parts 22 passing through the connecting hole 111 and the sensor connecting hole 221.

[0040] like Figure 1 As shown, in the sensor 10, the connecting part 01 is set as a connecting boss 11. The connecting boss 11 protrudes towards the top side of the sensor 10 body 02, which effectively increases the length of the connecting part 01 and the connecting hole 111 in the first direction. On the one hand, it increases the strength of the connecting part 01, and on the other hand, it extends the length of the connecting hole 111, ensuring that the sensor 10 and the sensor mounting bracket 20 are stably and firmly installed.

[0041] Generally, the connecting part 01 in the sensor 10 is made of plastic to ensure the connection strength of the connecting hole 111. A metal tube is tightly fitted inside the connecting hole 111, and the inner wall of the metal tube is threaded to facilitate its connection with the sensor connecting hole 221 on the sensor mounting bracket 20 through connecting bolts or other threads.

[0042] Due to its structure, the sensor 10, especially the connection part 01 located between the two sensor 10 bodies 02, is connected and locked through the connection hole 111 on the connection part 01. When the sensor 10 is installed, especially when the sensor 10 is installed by connecting bolts, the sensor 10 may rotate or deflect around the axis of the connection hole 111.

[0043] In one embodiment, sensor 10 is a pressure sensor 10. The pressure sensor 10 senses pressure changes within the battery pack in real time, thereby detecting the pressure environment within the pack in real time.

[0044] To solve the above-mentioned sensor 10 installation problem, the following sensor mounting bracket 20 is proposed. The sensor mounting bracket 20 is used for the battery pack and for fixing the sensor 10. When installing the sensor 10, the sensor mounting bracket 20 is installed on the battery pack housing and the sensor 10 is installed on the sensor mounting bracket 20. This can at least solve the problem of sensor 10 deflection during installation or operation.

[0045] Please see Figure 2 A sensor mounting bracket 20 includes a bracket body 4, a bracket mounting part 3, and a sensor mounting part 2.

[0046] The bracket body 4 is provided with a sensor 10 limiting part, which is configured to prevent the sensor 10 from deflecting. When the sensor 10 is installed on the sensor mounting bracket 20, it is connected to the sensor mounting bracket 20 through the connecting hole 111 on the sensor 10. In this case, the sensor 10 may rotate or deflect around the axis of the connecting hole 111. Therefore, in order to achieve the purpose of preventing the sensor 10 from deflecting, when the sensor 10 is installed on the sensor mounting bracket 20, the sensor 10 limiting part should be located on the outer side or outer periphery of the sensor 10 to restrict the sensor 10 from rotating or deflecting around the connecting axis.

[0047] The bracket mounting part 3 is configured to mount the sensor mounting bracket 20 onto the battery pack housing, and the bracket mounting part 3 is fixedly connected to the bracket body 4.

[0048] The sensor mounting part 2 is configured to be fixedly connected to the sensor 10. The sensor mounting part 2 is fixedly connected to the bracket body 4. The mounting direction of the sensor 10 on the sensor mounting part 2 and the insertion direction of the insertion part 03 of the sensor 10 are both the first direction.

[0049] The sensor mounting part 2 is used to fix the sensor 10. The mounting direction of the sensor 10 on the sensor mounting part 2 and the insertion direction of the insertion part 03 of the sensor 10 are both the first direction. The insertion part 03 of the sensor 10 includes a connector. That is, after the sensor 10 is installed on the sensor mounting bracket 20, the insertion and removal operation of the connector on the sensor 10 is in the vertical direction. The connector is inserted and removed vertically. The single-direction (first direction) installation makes the fixing point evenly stressed, reducing the risk of loosening due to long-term vibration. Moreover, the installation and insertion operation of the sensor body 02 can be completed simultaneously in the first direction without adjusting the angle or re-inserting. This facilitates the insertion and removal of the sensor 10 connector, simplifies the operation process, and facilitates the installation and maintenance of the sensor 10 connector, as well as the installation, maintenance, disassembly, and replacement of the sensor 10. In addition, it does not require additional space to accommodate different directions, thus improving space utilization. This sensor mounting bracket 20 includes a bracket body 4, a bracket mounting part 3, and a sensor mounting part 2. The sensor 10 is mounted on the sensor mounting part 2, and the mounting direction of the sensor 10 on the sensor mounting part 2 and the insertion direction of the insertion part 03 on the sensor 10 are both the first direction, which facilitates the installation of the sensor 10. At the same time, a sensor 10 limiting part is provided on the bracket body 4 to prevent the sensor 10 from deflecting, which solves the problem of rotation and deflection during the installation of the existing sensor 10, ensures that the sensor 10 is stably installed on the sensor 10 bracket, avoids the sensor 10 from being twisted or damaged by force during installation or use, ensures the normal operation of the sensor 10, and extends the service life of the sensor 10.

[0050] Please see Figure 2 In one embodiment, the sensor mounting part 2 includes a mounting beam 21. When the sensor 10 is installed, the connecting part 01 of the sensor 10 is placed on the mounting beam 21, and the connecting part 01 is fixedly connected to the mounting beam 21. The mounting beam 21 is configured to adapt to the structural arrangement of the sensor 10. Figure 1 In the middle, the sensor 10 has two sensor 10 bodies 02, which are located on both sides of the connecting part 01 respectively. In this way, when the sensor 10 is installed on the sensor mounting bracket 20, the sensor 10 is mounted on the mounting beam 21, and then the connecting part 01 is fixedly connected to the mounting beam 21, making the installation of the sensor 10 convenient and quick.

[0051] The width of the mounting beam 21 is adapted to the width of the bottom of the clearance groove 04 on the sensor 10, ensuring that the bottom of the clearance groove 04 is in contact with the surface of the mounting beam 21, and ensuring that the sensor 10 remains balanced and stable after installation.

[0052] In some embodiments, the sensor mounting part 2 may also be a mounting block or mounting plate that is fixedly connected to the bracket body 4.

[0053] Please see Figure 2 In one embodiment, a connector 22 is provided on the mounting beam 21. The axial direction of the connector 22 is a first direction. When the sensor 10 is installed, the connecting part 01 of the sensor 10 is placed on the mounting beam 21 and connected to the connector 22. Installing the sensor 10 through the connector 22 is simple, and since the axial direction of the connector 22 is the first direction, the installation direction of the sensor 10 on the sensor mounting bracket 20 can be consistent with the insertion direction of the connector on the insertion part 03, which facilitates the insertion and removal of the connector, facilitates the installation and maintenance of the sensor 10, and reduces the technical requirements for the maintenance of the sensor 10.

[0054] Please see Figure 2 In one embodiment, the connector 22 is a sensor connection hole 221. During sensor 10 installation, the connecting part 01 of the sensor 10 is placed on the mounting beam 21, and a connecting screw passes through the connecting part 01 and the sensor connection hole 221 to fix the connecting part 01 of the sensor 10 to the mounting beam 21. The connector 22, being a sensor connection hole 221, is coaxially aligned with the connection hole 111 on the sensor 10. During sensor 10 installation, the sensor connection hole 221 and the connection hole 111 are connected by connecting screws or bolts, enabling sensor 10 installation in a simple and convenient manner. The connector 22, being a sensor connection hole 221, facilitates the processing and shaping of the sensor mounting bracket 20, while also reducing the height of the sensor mounting bracket 20 and the height of the installed sensor 10.

[0055] In one embodiment, the connector 22 may be a connecting screw or a connecting stud fixed on the connecting beam. When the sensor 10 is installed, the connecting screw or connecting stud passes through the connecting hole 111 on the sensor 10, and then the sensor 10 is locked onto the connecting screw or connecting stud by locking components such as nuts.

[0056] Please see Figure 2 In one embodiment, the bracket body 4 includes a frame 41, and the sensor mounting part 2 is fixedly connected to the frame 41. Please refer to... Figure 3 and Figure 4 When the sensor 10 is installed, the sensor 10 is placed inside the frame 41, and the side wall of the frame 41 located outside the sensor 10 is the sensor limiting part 40.

[0057] The frame 41 serves as a structure or part of the support body 4, providing a fixed position and foundation for the support mounting part 3 and the sensor mounting part 2, ensuring the integrity of the sensor mounting bracket 20.

[0058] When the sensor 10 is installed, the bracket body 4 is located outside the sensor 10. In this way, the frame 41 can serve as a limiting part for the sensor 10, thereby restricting the rotation and deflection of the sensor 10 during installation or operation. Using the frame 41 as a limiting part for the sensor 10 simplifies the structure of the sensor mounting bracket 20 and reduces its cost.

[0059] Please see Figure 2 In one embodiment, the frame 41 is a rectangular frame 41, which has a simple and regular structure, is easy to process and form, and reduces manufacturing costs. In addition, the frame 41 of the bracket body 4 is a rectangular frame 41. When the sensor 10 is installed on the sensor mounting bracket 20, the side wall of the rectangular frame 41 is placed outside the sensor 10, and the inner side of the rectangular frame 41 faces the sensor 10, thereby limiting the position of the sensor 10.

[0060] Please see Figure 2 In one embodiment, the sensor mounting part 2 is connected inside the frame 41, dividing the frame 41 into two cavities for receiving the detection parts 05. When the sensor 10 is installed, the two detection parts 05 on the sensor 10 are respectively placed within the two cavities for receiving the detection parts 05. With the two detection parts 05 on the sensor 10 respectively placed within the two cavities for receiving the detection parts 05, the sensor 10 has a frame 41 surface facing it on all four sides, enabling the sensor 10 to be limited by its entire outer peripheral surface, resulting in good limiting effect.

[0061] Please see Figure 2 In one embodiment, the detector 05 accommodating cavity is a cavity that is open at both ends. Please refer to [link / reference]. Figure 3 and Figure 4 After the detection part 05 of sensor 10 is placed inside the detection part 05 receiving cavity, the detection part 05 extends out from the detection part 05 receiving cavity. The design of the detection part 05 receiving cavity as a cavity structure with openings at both ends allows the detection part 05 of sensor 10, which is mounted on sensor mounting bracket 20, to extend out from the detection part 05 receiving cavity, enabling the detection part 05 of sensor 10 to communicate with the internal environment of battery pack. This facilitates the sensor 10 to sense pressure changes within the battery pack in real time, allowing the sensor 10 to monitor the internal pressure environment of the pack in real time. The extension of the detection part 05 from the detection part 05 receiving cavity ensures the detection sensitivity of sensor 10.

[0062] In one embodiment, when the frame 41 is a rectangular frame 41, the cavity of the detection part 05 is a rectangular cavity, so that the sensor 10 has rectangular frames 41 facing it on all four sides, and the sensor 10 can be limited by the entire outer peripheral surface of the sensor 10, and the limiting effect is better.

[0063] Please see Figure 2In one embodiment, a plurality of limiting ribs 5 are provided on the inner sidewall of the frame 41, and the length direction of the limiting ribs 5 is along the first direction, i.e. Figure 2 In the X direction.

[0064] The addition of the limiting rib 5 enhances the strength of the support body 4. (Please refer to...) Figure 2 The limiting ribs 5 are evenly distributed around the inner sidewall of the frame 41.

[0065] The limiting rib 5 is located between the sensor 10 and the inner wall of the frame 41. It can reduce the machining accuracy and flatness of the frame 41, and facilitate the installation of the sensor 10 on the sensor mounting bracket 20.

[0066] In one embodiment, the limiting rib 5 has a thickness of 1.5 mm.

[0067] Please see Figure 2 In one embodiment, after the detection part 05 of the sensor 10 is placed in the cavity of the detection part 05, the distance between the detection part 05 of the sensor 10 and the surface of the limiting rib 5 that is close to it is 0.5-1.0 mm.

[0068] The sensor 10 is fixed to the sensor mounting bracket 20 via the sensor connection hole 221 and the connection hole 111 on the sensor 10. This means the sensor 10 is fixed to the sensor mounting bracket 20 with a single bolt. Therefore, during installation, the sensor 10 will rotate along with the bolt torque, that is, the sensor 10 will rotate around the connection hole 111 on the sensor 10. At this time, the distance between the designed limiting rib 5 and the sensor body 02 is 0.5-1.0 mm. This not only restricts the rotation of the sensor 10 during attachment to the sensor mounting bracket 20, ensuring the consistency of the sensor 10's position within the sensor mounting bracket 20, but also avoids rework and resource waste during assembly. The distance between the sensor 10's detection part 05 and the closest surface of the limiting rib 5 is 0.5-1.0 mm, which also helps to absorb tolerances. These tolerances may originate from manufacturing errors of the sensor 10 itself, the sensor mounting bracket 20, or installation errors between the sensor 10 and the sensor mounting bracket 20.

[0069] Please see Figure 2 In one embodiment, the bracket mounting part 3 includes a mounting connecting block 31, on which a bracket mounting hole 32 is provided. The axial direction of the bracket mounting hole 32 is a first direction, i.e. Figure 2 In the X direction. The mounting connector 31 connects to the outside of the bracket body 4, enabling the sensor mounting bracket 20 to be mounted on the battery pack. The axial direction of the bracket mounting hole 32 is consistent with the axial direction of the sensor connection hole 221, realizing the vertical arrangement of the sensor mounting bracket 20 inside the battery pack.

[0070] A battery pack includes at least a battery pack housing, a sensor 10, and the aforementioned sensor mounting bracket 20. See also... Figure 3 The sensor 10 is mounted on the sensor mounting bracket 20. The battery pack housing includes an upper housing and a lower housing. The sensor mounting bracket 20 is mounted on the lower housing, the sensor mounting part 2 faces the upper housing, and the sensor 10 mounted on the sensor mounting bracket 20 faces the upper housing. The direction of the virtual line connecting the center position of the upper housing to the center position of the lower housing is the first direction.

[0071] The axis direction of the connection hole 111 on the sensor 10 is the first direction, the axis direction of the sensor connection hole 221 on the sensor mounting bracket 20 is the first direction, and the insertion direction of the insertion part 03 of the sensor 10 mounted on the sensor mounting bracket 20 is the first direction. In this way, when maintaining the sensor 10, it is only necessary to open the upper shell of the battery pack to plug and unplug the connector of the insertion part 03 on the sensor 10, so that the sensor 10 can be disassembled and replaced, and the sensor mounting bracket 20 can also be replaced. The operation is simple and convenient.

[0072] The sensor 10 inside the battery pack is mounted on the sensor mounting bracket 20 of the aforementioned embodiment. By limiting the rotation and deflection of the sensor 10 through the limiting part on the bracket body 4, the problem of stable installation and deflection prevention of the sensor 10 inside the battery pack is solved, avoiding damage or failure of the sensor 10, ensuring normal operation of the sensor 10, extending the service life of the sensor 10, and reducing the probability of delayed detection of thermal runaway of the battery pack.

[0073] The battery pack also includes a moisture-absorbing sheet for absorbing condensation on the upper housing. The moisture-absorbing sheet is disposed on the inner surface of the upper housing and is disposed at least at the insertion portion 03 of the sensor 10.

[0074] Because the connector on the insertion part 03 of the sensor 10 is inserted and removed vertically, such as Figure 4 As shown in the diagram, the vertical direction is as follows; however, the upper part of the connector is the battery pack housing, where condensation may occur. When this condensation drips, there is a certain probability that it will drip onto the connector on sensor 10 and then flow down the terminal holes inside the connector, affecting the stability and effectiveness of the signal transmission of sensor 10. To solve this problem, a moisture-absorbing sheet is added to the inner surface of the upper housing of the battery pack above the connector. This avoids the risk of condensation dripping onto the connector and ensures the effective use of sensor 10.

[0075] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A sensor mounting bracket for a battery pack and for securing a mounting of a sensor (10), characterized in that The sensor mounting bracket (20) includes: The bracket body (4) is provided with a sensor limiting part (40), which is configured to prevent the sensor (10) from deflecting. The bracket mounting part (3) is configured to mount the sensor mounting bracket (20) onto the battery pack housing, and the bracket mounting part (3) is fixedly connected to the bracket body (4). The sensor mounting part (2) is configured to be fixedly connected to the sensor (10); the sensor mounting part (2) is fixedly connected to the bracket body (4); the mounting direction of the sensor (10) on the sensor mounting part (2) and the insertion direction of the insertion part (03) of the sensor (10) are both the first direction.

2. The sensor mounting bracket of claim 1, wherein, The sensor mounting part (2) includes a mounting beam (21). When the sensor (10) is installed, the sensor connection part (01) is placed on the mounting beam (21) and the connection part is fixedly connected to the mounting beam (21).

3. The sensor mounting bracket of claim 2, wherein, A connector (22) is provided on the mounting beam (21). The axis of the connector (22) is in the first direction. When the sensor (10) is installed, the connecting part (01) of the sensor (10) is placed on the mounting beam (21) and connected to the connector (22).

4. The sensor mounting bracket of claim 3, wherein, The connector (22) is a sensor connection hole (221). When the sensor (10) is installed, the sensor connection part (01) is placed on the mounting beam (21) and the sensor connection part is fixedly connected to the mounting beam (21) by means of connecting screws passing through the sensor connection part and the sensor connection hole (221).

5. The sensor mounting bracket of any one of claims 1 to 4, wherein, The bracket body (4) includes a frame (41), and the sensor mounting part (2) is fixedly connected to the frame (41). When the sensor is installed, the sensor is placed inside the frame (41), and the side wall of the frame (41) located outside the sensor is the sensor limiting part (40).

6. The sensor mounting bracket of claim 5, wherein, The sensor mounting part (2) is connected to the frame (41) and divides the frame (41) into two detection part (05) accommodating cavities; when the sensor is installed, the two detection parts (05) on the sensor are respectively placed in the two detection part (05) accommodating cavities; The detection part (05) accommodating cavity is a cavity with openings at both ends. After the detection part (05) of the sensor is placed in the detection part (05) accommodating cavity, the detection part (05) extends out from the detection part (05) accommodating cavity.

7. The sensor mounting bracket according to claim 6, characterized in that, The inner wall of the frame (41) is provided with a number of limiting ribs (5), and the length direction of the limiting ribs (5) is along the first direction.

8. The sensor mounting bracket according to claim 7, characterized in that, After the sensor's detection part (05) is placed in the cavity of the detection part (05), the distance between the sensor's detection part (05) and the surface of the limiting rib (5) that is closer is 0.5-1.0 mm.

9. A battery pack, characterized in that, It includes at least a battery pack housing, the sensor (10), and a sensor mounting bracket (20) as described in any one of claims 1 to 8, wherein the sensor (10) is mounted on the sensor mounting bracket (20); the battery pack housing includes an upper housing and a lower housing, the sensor mounting bracket (20) is mounted on the lower housing, the sensor mounting part (2) faces the upper housing, and the direction of the virtual line connecting the center position of the upper housing to the center position of the lower housing is a first direction.

10. The battery pack according to claim 9, characterized in that, It also includes a moisture-absorbing sheet for absorbing condensate from the upper housing. The moisture-absorbing sheet is disposed on the inner surface of the upper housing and is disposed at least at the insertion portion (03) facing the sensor (10).

Images