A battery tray monitoring device and vehicle

Abstract

The utility model discloses a kind of battery chassis monitoring device and vehicle, the battery chassis monitoring device includes: multiple sensor modules, adapter and sensor module controller, wherein: multiple sensor modules are divided into at least one group, multiple sensor modules of same group are sequentially connected, and each group is connected with adapter, and detection signal is transmitted to the adapter.The battery chassis monitoring device and vehicle of the application are overall simple, easy to install.

Description

TECHNICAL FIELD

[0001] The utility model relates to the collision monitoring technology of vehicle, more particularly to a battery chassis monitoring device and vehicle. BACKGROUND

[0002] In the prior art, the state monitoring of automobile battery pack mainly relies on the vehicle-mounted computer system to roughly judge through limited parameters. Some automobiles can have simple temperature sensors to monitor the ambient temperature around the battery pack. Due to the limited space in the automobile battery chassis, it is difficult to arrange the commonly used large-volume sensors at the key positions in the battery chassis, so for the condition of the automobile battery chassis bump, there is often a lack of special and accurate monitoring means, and the key parameters such as the collision, pressure and deformation of the battery chassis cannot be effectively monitored, and the actual condition of the battery chassis under external force cannot be comprehensively understood. This can lead to safety hazards and affect the performance and service life of the battery due to abnormal conditions of the battery chassis during driving, such as deformation after being hit, and also increase the maintenance cost and time. SUMMARY

[0003] The utility model embodiment provides a battery chassis monitoring device and vehicle, whole arrangement is simple, and installation is simple.

[0004] The utility model embodiment provides a battery chassis monitoring device, comprising: a plurality of sensor modules, an adapter and a sensor module controller, wherein:

[0005] The plurality of sensor modules are divided into at least one group, the plurality of sensor modules in the same group are sequentially connected, each group is connected with the adapter, and the detection signal is transmitted to the adapter, and the sensor module is arranged to detect the elastic wave signal generated by the battery chassis due to collision;

[0006] The adapter is also connected with the sensor module controller, and the detection signal of each group of sensor modules is transmitted to the sensor module controller respectively;

[0007] The sensor module controller is arranged to monitor the battery chassis according to the detection signal transmitted by the adapter.

[0008] In one exemplary embodiment, the battery chassis monitoring device further comprises a battery controller, wherein:

[0009] The battery controller is connected with the sensor module controller, and receives the battery chassis monitoring result transmitted by the sensor module controller.

[0010] In one exemplary embodiment, the battery chassis comprises a bottom guard plate and a cooling plate, wherein:

[0011] The sensor module and adapter are located between the bottom protective plate and the cooling plate, and are disposed on the bottom protective plate and / or the cooling plate. An opening is provided on the cooling plate at a position corresponding to the adapter. The adapter transmits the detection signal of each sensor module to the sensor module controller through the opening.

[0012] In one exemplary embodiment, the sensor module includes:

[0013] A sensor assembly is configured to detect elastic wave signals generated by a collision with the battery chassis, and has two oppositely positioned terminals. These terminals are provided with multiple sets of terminal blocks to connect multiple sensor modules in series.

[0014] The housing is configured to shield the sensor assembly.

[0015] In one exemplary embodiment, the sensor assembly includes a circuit board and a sensor, the sensor being disposed on the circuit board, the circuit board having two terminals;

[0016] The sensor module further includes a first wiring harness and a second wiring harness, which are electrically connected to corresponding terminals.

[0017] In an exemplary embodiment, the housing is provided with a receiving groove for accommodating the sensor assembly, and the two ends of the housing are respectively provided with a first port and a second port communicating with the receiving groove;

[0018] The sensor module further includes a first wire harness holder and a second wire harness holder that are respectively inserted into the receiving slot from the first port and the second port, and both the first wire harness holder and the second wire harness holder are provided with wire passage channels.

[0019] The first wire harness holder and the second wire harness holder have wire passage channels for the first wire harness and the second wire harness to pass through and extend into the receiving groove to be electrically connected to the corresponding terminal. The first wire harness holder and the second wire harness holder both include a stop portion that stops at the end of the housing and a plug portion that plugs into the receiving groove along the insertion direction.

[0020] The stop portions of the first and second wire harness seats cooperate with the receiving groove to form a potting groove for injecting sealant.

[0021] In one exemplary embodiment, the sensor assembly is fixed to the receiving groove by adhesive bonding;

[0022] The sensor module also includes double-sided adhesive tape, which is disposed on the bottom surface of the housing and extends to the bottom surfaces of the first wiring harness seat and the second wiring harness seat. The double-sided adhesive tape is configured to fix the sensor module to the battery chassis.

[0023] In one exemplary embodiment, the housing covers the sensor assembly, and the housing has potting grooves at both ends, the potting grooves being configured to fill with sealant for covering the areas where the first and second wiring harnesses are connected to the circuit board.

[0024] In an exemplary embodiment, the two terminals are an input terminal and an output terminal, each of which includes a terminal block. The terminal block of the input terminal includes an internal input port and an external input port, and the terminal block of the output terminal includes an internal output port and an external output port. The signal terminal of the sensor assembly is connected to a set of internal output ports of the output terminal.

[0025] If this sensor module has an upstream sensor module, the external port of the output terminal corresponding to the internal port of the output terminal of this group is connected to the external port of the input terminal of the upstream sensor module; the internal port of the input terminal corresponding to the external port of the input terminal of the upstream sensor module transmits signals through the internally connected internal port of the output terminal, and uploads the detection signal of the downstream sensor module through the corresponding external port of the output terminal until the detection signal is transmitted to the output terminal of the first sensor module;

[0026] If this sensor module is the first sensor module among N sensor modules, then the output terminal serves as the output terminal of the N sensor modules; N is the number of sensor modules.

[0027] If this sensor module has a downstream sensor module, then this sensor module connects to the internal input port corresponding to the external input port of the output terminal of the downstream sensor module, transmits signals through the internally connected output port, and uploads the detection signal of the downstream sensor module through the corresponding external output port, so as to transmit the detection signal to the output terminal of the first sensor module.

[0028] This application also provides a vehicle, including: a vehicle body and a battery chassis monitoring device as described in any of the above embodiments, wherein the battery chassis monitoring device is installed on the vehicle body.

[0029] The battery chassis monitoring device of this embodiment includes multiple sensor modules connected in series to detect elastic wave signals generated by collisions in the battery chassis. The detection signals from these multiple sensor modules can be transmitted to a sensor module controller via an adapter for battery chassis monitoring. The overall layout is simple and easy to install. Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and drawings. Attached Figure Description

[0030] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0031] Figure 1 This is a schematic diagram of the sensor module and battery packaging assembly according to an embodiment of the present invention;

[0032] Figure 2 This is an exploded view showing the assembly relationship between multiple sensor modules, battery cooling plate, and bottom protective plate in an embodiment of this utility model.

[0033] Figure 3 This is a schematic diagram of the sensor module arrangement on the vehicle chassis according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram showing the connection between multiple sensor modules and adapters on the vehicle chassis according to an embodiment of the present invention.

[0035] Figure 5 This is a three-dimensional exploded view of the sensor module according to an embodiment of the present utility model;

[0036] Figure 6 This is a perspective view of the first or second wiring harness holder of the sensor module according to an embodiment of the present utility model.

[0037] Figure 7 This is a perspective view of the glue-filling tank for displaying the sensor module according to an embodiment of the present utility model;

[0038] Figure 8 This is a perspective view of the sensor module according to an embodiment of the present invention;

[0039] Figure 9 This diagram illustrates the sequential connection of multiple sensor modules according to an embodiment of the present invention.

[0040] Figure 10 for Figure 9 A diagram illustrating a single sensor module;

[0041] Figure 11 This is a schematic diagram of the wiring terminal ports of the sensor module according to an embodiment of the present invention;

[0042] Figure 12 This is a schematic diagram of the wiring terminals of adjacent sensor modules in an embodiment of this utility model;

[0043] Figure 13 This is a three-dimensional exploded view of a sensor module according to another embodiment of the present invention.

[0044] Reference numerals: Sensor module - 100, 100a, 100b, 100c; Sensor assembly - 1; Housing - 2; First terminal - 111; Second terminal - 112; Receiving groove - 20; Bottom wall - 21; Side wall - 22; Fixing adhesive - 3; Circuit board - 11; Sensor - 12; Wiring terminals - 110, 110a, 110b, 110c, 110d, 110e, 110f; First port - 201; Second port - 20 2; First wire harness holder - 41; Second wire harness holder - 42; Wiring channels - 410, 420; First wire harness - 51; Second wire harness - 52; Stop part - 411, 421; Plug part - 412, 422; Sealant - 6; Glue pot - 203; Double-sided tape - 7; Battery chassis - 8; Bottom guard plate - 81; Cooling plate - 82; Adapter - 83; Sensor module controller - G1; Battery controller - G2; Third wire harness - L1; Fourth wire harness - L2. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be arbitrarily combined with each other.

[0046] like Figures 1-4 As shown, the battery chassis monitoring device 1000 of this application embodiment includes: multiple sensor modules 100, an adapter 83, and a sensor module controller G1. The multiple sensor modules 100 are divided into at least one group, with multiple sensor modules 100 in the same group connected in series. Each group is connected to the adapter 83 to transmit detection signals. The sensor modules 100 are configured to detect elastic wave signals generated by a collision with the battery chassis 8. The adapter 83 is also connected to the sensor module controller G1, transmitting the detection signals from each group of sensor modules 100 to the sensor module controller G1. The sensor module controller G1 is configured to monitor the battery chassis 8 based on the detection signals transmitted by the adapter 83. The monitoring of the battery chassis 8 includes monitoring the collision location and collision energy, etc.

[0047] The battery chassis monitoring device 1000 of this utility model embodiment is provided with multiple sensor modules 100 connected in series and used to detect the elastic wave signal generated by the collision of the battery chassis 8. The detection signals of the multiple sensor modules 100 can be transmitted to the sensor module controller G1 through the adapter 83 for monitoring of the battery chassis 8. The overall layout is simple and the installation is convenient.

[0048] like Figure 1 , Figure 2 As shown, the battery chassis monitoring device 1000 also includes a battery controller G2, wherein the battery controller G2 is connected to the sensor module controller G1 and receives the battery chassis monitoring results transmitted by the sensor module controller G1.

[0049] like Figure 2 , Figure 3 As shown, the battery chassis 8 includes a bottom protective plate 81 and a cooling plate 82, wherein: the sensor module 100 and the adapter 83 are located between the bottom protective plate 81 and the cooling plate 82, and are disposed on the bottom protective plate 81 and / or the cooling plate 82. An opening (not shown) is provided on the cooling plate 82 at a position corresponding to the adapter 83. The adapter 83 transmits the detection signal of each sensor module 100 to the sensor module controller G1 through the opening.

[0050] like Figures 5-8 As shown, the sensor module 100 of this embodiment includes a sensor assembly 1 and a housing 2. The sensor assembly 1 is configured to detect the elastic wave signal generated by the battery chassis 8 due to collision and has two terminals arranged opposite to each other, namely a first terminal 111 and a second terminal 112. Both the first terminal 111 and the second terminal 112 are provided with multiple sets of terminals 110, so as to connect multiple sensor modules 100 in series through the first terminal 111 and the second terminal 112. The housing 2 is provided with a receiving groove 20 to accommodate the sensor assembly 1. The sensor assembly 1 is fixed in the receiving groove 20, so that the housing 2 can support and protect the sensor assembly 1.

[0051] In this embodiment of the present invention, the sensor assembly 1 is provided with two opposite terminals. Both the first terminal 111 and the second terminal 112 are provided with multiple sets of terminals 110, so that multiple sensor modules 100 can be connected in series through the first terminal 111 and the second terminal 112, and the multiple sensor modules 100 can be ensured to work independently.

[0052] For example, such as Figure 9 , Figure 10As shown, three sensor modules 100a (1#), 100b (2#), and 100c (3#) are connected in sequence to form a sensor module 100. Each sensor module 100 has three sets of terminals at both ends. The first set of terminals 110a and 110b of the first sensor module 100a is used to transmit the signal detected by the first sensor module 100a. The second set of terminals 110c and 110d of the first sensor module 100a is used to connect with the second set of terminals 110c and 110d of the second sensor module 100b to transmit the signal detected by the second sensor module 100b. The third set of terminals 110e and 110f of the first sensor module 100a is used to connect with the third set of terminals 110e and 110f of the second sensor module 100b. The third set of terminals 110e and 110f of the second sensor module 100b is connected with the third set of terminals 110e and 110f of the third sensor module 100c, thereby realizing the transmission of the signal detected by the third sensor module 100c.

[0053] This embodiment of the invention enables the serial connection of multiple sensor modules 100 while ensuring that each sensor module 100 operates independently. For example... Figure 9 As shown, multiple sensor modules 100a, 100b, and 100c are interconnected through a first wiring harness 51 and a second wiring harness 52 to form a module chain. The multiple sensor modules 100a, 100b, and 100c can be installed on the battery chassis 8 to achieve large-scale deformation monitoring.

[0054] like Figure 10 As shown, the two terminals 111 and 112 of the sensor assembly 1 are the input terminal and the output terminal of the sensor assembly 1, and each of the input terminal and the output terminal includes a terminal 110. Figure 11 The connection configuration of one set of input / output terminal blocks 110 is shown. This set of input terminal blocks 110 includes an internal input port A and an external input port B. The set of output terminal blocks 110 includes an internal output port C and an external output port D. The signal terminal of sensor 12 is connected to the internal output port C, and the corresponding external output port D is connected to the external input port B of the upstream sensor module 100.

[0055] If this sensor module 100b is the first sensor module in a module chain formed by connecting N sensor modules in series (i.e., there is no upstream sensor module), then the output terminal serves as the overall output terminal of the N sensor modules, where N is the number of sensor modules 100. Figure 12The connection between adjacent sensor modules is given. The external input port B of the upstream sensor module 100b is connected to the external output port D of the downstream sensor module 100a (the external output port C corresponding to the external output port D of the downstream sensor module 100a is connected to the signal terminal of the sensor in the downstream sensor module 100a). The internal input port A corresponding to the external input port B of the upstream sensor module 100b transmits the detection signal of the downstream sensor module 100a through the internal output port C connected inside the upstream sensor module 100b, and uploads the detection signal of the downstream sensor module 100a through the corresponding external output port D, until the detection signal is transmitted to the output terminal of the first sensor module.

[0056] like Figure 5 As shown, the outer shell 2 includes a bottom wall 21 and side walls 22 extending upward from both sides of the bottom wall 21. The bottom wall 21 and the side walls 22 on both sides form a receiving groove 20. The overall structure of the outer shell 2 is simple and easy to process. The outer shell 2 of this embodiment is made of metal, but other materials can also be used, and are not limited here.

[0057] The sensor assembly 1 of this utility model embodiment is fixed in the receiving groove 20 by adhesive bonding. This not only allows the outer shell 2 to support and protect the sensor assembly 1, but also enables the sensor module 100 to be quickly assembled without the need for additional screws or clips. This reduces costs and allows the sensor module 100 to be thinner and lighter, making it suitable for installation in space-constrained structures. This helps to achieve the miniaturization and lightweight design of the sensor module 100.

[0058] like Figure 5 As shown, the sensor module 1 also includes a fixing adhesive 3, which bonds the sensor assembly 1 to the bottom wall of the receiving groove 20, thereby fixing the sensor assembly 1 to the housing 2. The sensor assembly 1 can be quickly and easily installed in the housing 2 by the fixing adhesive 3, while maintaining the compactness of the overall structure of the sensor module 100, which helps to reduce the overall thickness of the sensor module 100, allowing the sensor module 100 to be used in space-constrained structures.

[0059] like Figure 5 As shown, the sensor assembly 1 includes a circuit board 11 and a sensor 12, with the sensor 12 disposed on the circuit board 11. The circuit board 11 has a first terminal 111 and a second terminal 112 at both ends.

[0060] Sensor 12 can be an elastic wave sensor used to monitor the elastic wave signal generated by an object due to a collision. Elastic wave sensors are small in size, for example, only about 3 mm thick, making them easy to install and allowing for more flexible placement in space-constrained structural areas. It should be understood that sensor 12 can also be an elastic wave sensor integrated with other sensors, such as temperature sensors, humidity sensors, etc.

[0061] like Figure 5 , Figure 9 As shown, the outer casing 2 has a first port 201 and a second port 202 at both ends that communicate with the receiving groove 20. The sensor module 100 also includes a first wire harness holder 41 and a second wire harness holder 42 that are respectively inserted into the receiving groove 20 from the first port 201 and the second port 202. The first wire harness holder 41 and the second wire harness holder 42 are both provided with wire passage channels 410 and 420 for the wire harness to pass through and for positioning the wire harness.

[0062] like Figure 5 , Figure 7 As shown, the sensor module 100 also includes a first wire harness 51 and a second wire harness 52. The first wire harness 51 and the second wire harness 52 pass through the wire passages 410 and 420 of the first wire harness seat 41 and the second wire harness seat 42, respectively, into the receiving groove 20 and are electrically connected to the terminals 110 of the two terminals 111 and 112 of the circuit board 11, respectively.

[0063] like Figure 6 As shown, the first wire harness socket 41 and the second wire harness socket 42 are along the insertion direction (see Figure 42). Figure 8 (The arrows indicate the direction) All of them include stop portions 411 and 421 that stop at the ends of the housing 2 and insertion portions 412 and 422 that are inserted into the receiving groove 20.

[0064] like Figure 7 , Figure 8 As shown, the stop portions 411 and 421 of the first wire harness holder 41 and the second wire harness holder 42 cooperate with the receiving groove 20 to form a potting groove 203 for injecting sealant 6. The remaining area of ​​the receiving groove 20 is the recessed area remaining after the sensor assembly 1 and the first wire harness 51 and the second wire harness 52 are arranged. The sealant 6 injected into the potting groove 203 can cover the area where the first wire harness 51 and the second wire harness 52 are connected to the circuit board 11 and the sensor 12, ensuring the reliability of the electrical connection.

[0065] like Figure 5 , Figure 7 As shown, the sensor module 100 also includes double-sided adhesive tape 7. The double-sided adhesive tape 7 is located on the bottom surface of the housing 2 and extends to the bottom surfaces of the first wiring harness holder 41 and the second wiring harness holder 42, and is configured to fix the sensor module 100 to the battery chassis 8. This fixing method is simple, quick, and helps save space.

[0066] The sensor module 100 of this embodiment adopts a stacked configuration, resulting in a compact structure. The assembly process of the sensor module 100 is as follows: First, fixing adhesive 3 is pre-applied to the receiving groove 20 of the housing 2. Then, the sensor assembly 1 is placed into the receiving groove 20 of the housing 2 and fixed to the housing 2 using the fixing adhesive 3. Next, the first wire harness holder 41 and the second wire harness holder 42 are inserted into the housing 1 from both ends through the first port 201 and the second port 202 of the housing 1 for fixation. Next, the first wire harness 51 and the second wire harness 52 are inserted into the receiving groove 20 of the housing 2 through the channels 410 and 420 of the first wire harness holder 41 and the second wire harness holder 42, respectively, and soldered to the terminals 110 of the first terminal 111 and the second terminal 112 of the circuit board 11. Finally, sealant 6 is poured into the potting tank 203 for sealing and fixation, completing the assembly of a single sensor module 100.

[0067] like Figure 13 As shown, this embodiment of the present invention also provides a sensor module 100 with another implementation, wherein the sensor module 100 is arranged in a stacked manner. The sensor module 100 of this embodiment differs from the sensor module 100 of the above embodiments in that the overall installation method of the housing 2 structure, the first wire harness seat 41 and the second wire harness seat 42 are different. The rest can be referred to the sensor module 100 described in any of the above embodiments, and will not be repeated here.

[0068] When installing the sensor module 100 in this embodiment, the circuit board 11 is first fixed by soldering the two ends (first terminal 111 and second terminal 112) and the first wire harness 51 and the second wire harness 52. Then, it is fixed by bonding it to the outer shell 2 with double-sided tape M1. Then, double-sided tape M2 is bonded to the back of the whole assembly. Finally, sealant 6 is applied to the glue-filling grooves 203 on both sides of the outer shell 2 to complete the installation of a single sensor module 100.

[0069] This utility model embodiment also provides a vehicle (not shown), including a vehicle body and a sensor module 100 as described in any of the above embodiments. The sensor module 100 is installed on the vehicle body and can determine whether the vehicle body has been subjected to external impact or overload, and transmit the data to the driver and maintenance personnel, so that the driver and maintenance personnel can keep abreast of the situation of the vehicle body being subjected to external impact or overload at any time, thereby improving the safety and intelligence level of the vehicle.

[0070] The sensor module 100 can be installed in space-constrained structures on the vehicle body and can be fixed to the vehicle body by adhesive bonding, thereby making full use of the vehicle body space. The sensor module 100 can be installed in parts of the vehicle body that are prone to collisions and deformation, such as the battery chassis, bumpers, and doors, to understand the impact conditions on these parts and locate the damaged areas.

[0071] like Figures 1-4As shown, the vehicle body includes a battery chassis 8, on which one or more sensor modules 100 are mounted. The sensor modules 100 detect elastic wave signals generated by a collision in the battery chassis 8, determining whether the battery chassis 8 has been subjected to external impact or overload, and locating the damaged area. The detection signals can be transmitted to terminal devices such as the onboard computer system, allowing drivers and maintenance personnel to monitor the condition of the battery chassis at any time, promptly identify potential problems, and perform maintenance and repairs in advance. This extends battery life, reduces maintenance costs, improves understanding of the battery chassis condition, and effectively reduces safety risks.

[0072] The battery chassis 8 includes a bottom protective plate 81 and a cooling plate 82. The bottom protective plate 81 and the cooling plate 82 are components of the battery chassis 8. The bottom protective plate 81 is located below the battery pack and is used to protect the battery pack. The cooling plate 82 is typically located below the battery pack and is used for heat exchange with the battery pack. A sensor module 100 is disposed between the bottom protective plate 81 and the cooling plate 82, and the sensor module 100 is fixed to the bottom protective plate 81 and / or the cooling plate 82.

[0073] The sensor module 100 can be fixed to the bottom cover plate 81 and / or the cooling plate 82 by adhesive means, for example, by using double-sided adhesive 7 to fix it to the bottom cover plate 81 and / or to the cooling plate 82. This fixing method helps to place the sensor module 100 in the limited space between the bottom cover plate 81 and the cooling plate 82, making full use of the space within the battery chassis and avoiding the occupation of other areas.

[0074] The vehicle body can be equipped with multiple sensor modules 100, which are divided into at least one group, and the multiple sensor modules 100 in the same group are connected in series.

[0075] Multiple sensor modules 100 are arranged circumferentially along the bottom protective plate 81 and / or the cooling plate 82. The bottom protective plate 81 and the cooling plate 82 may be generally rectangular in shape, and the multiple sensor modules 100 may be positioned near the edge along the length and / or width of the rectangular shape. Figure 9 The image shows several sensor modules 100 arranged along the length of a rectangular shape, including positions at the four corners.

[0076] Multiple sensor modules 100 can be spaced approximately evenly or densely arranged in certain key locations according to actual needs. By evenly placing multiple sensor modules 100 in different areas, it can be ensured that the vibration deformation state of each area can be collected and analyzed in real time, thereby comprehensively monitoring the impact condition of the battery chassis 8 and ensuring the stability and accuracy of the monitoring data. Multiple sensor modules 100 arranged in the same direction are aligned to facilitate wiring and improve the overall aesthetics of the wiring harness. Multiple sensor modules 100 are connected in series according to the wiring harness and finally connected to the wiring harness adapter to complete the assembly of multiple sensor modules of the battery chassis.

[0077] like Figure 1 As shown, the vehicle also includes an adapter 83, a sensor module controller G1, and a battery controller G2. The group of sensor modules 100 is connected to the sensor module controller G1 via the adapter 83, transmitting the signals detected by the group of sensor modules 100 to the sensor module controller G1. The sensor module controller G1 and the battery controller G2 are connected via a fourth wiring harness L2.

[0078] When multiple sensor modules are applied to a battery pack, they need to be fixed to the inner surface of the battery bottom cover plate 81 using double-sided adhesive tape 7. Then, they are connected via an adapter 83. The connector of the adapter 83 can pass through an opening and serves as a female connector. One end of the third wiring harness L1 is connected to a connector, which acts as a male connector. Signal connection is achieved through these two connectors. The third wiring harness L1 connects to the sensor module controller G1, which in turn connects to the battery controller G2 via a fourth wiring harness L2. The battery controller G2 then connects to the BMS (Battery Management System), thus connecting the sensor module 100 to the BMS.

[0079] In the description of this utility model, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "'mouth' structure", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0080] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0081] Although the embodiments disclosed in this utility model are as described above, the content described is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any person skilled in the art to which this utility model pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this utility model, but the patent protection scope of this utility model shall still be defined by the appended claims.

Claims

1. A battery chassis monitoring device, characterized in that, include: Multiple sensor modules, adapters, and sensor module controllers, including: Multiple sensor modules are divided into at least one group, and multiple sensor modules in the same group are connected in series. Each group is connected to the adapter to transmit the detection signal to the adapter. The sensor module is configured to detect the elastic wave signal generated by the battery chassis due to collision. The adapter is also connected to the sensor module controller, transmitting the detection signals of each sensor module to the sensor module controller respectively; The sensor module controller is configured to monitor the battery chassis based on the detection signals transmitted by the adapter.

2. The battery chassis monitoring device as described in claim 1, characterized in that, The battery chassis monitoring device also includes a battery controller, wherein: The battery controller is connected to the sensor module controller and receives the battery chassis monitoring results transmitted by the sensor module controller.

3. The battery chassis monitoring device as described in claim 1 or 2, characterized in that, The battery chassis includes a bottom protective plate and a cooling plate, wherein: The sensor module and adapter are located between the bottom protective plate and the cooling plate, and are disposed on the bottom protective plate and / or the cooling plate. An opening is provided on the cooling plate at a position corresponding to the adapter. The adapter transmits the detection signal of each sensor module to the sensor module controller through the opening.

4. The battery chassis monitoring device as described in claim 1 or 2, characterized in that, The sensor module includes: A sensor assembly is configured to detect elastic wave signals generated by a collision with the battery chassis, and has two oppositely positioned terminals. These terminals are provided with multiple sets of terminal blocks to connect multiple sensor modules in series. The housing is configured to shield the sensor assembly.

5. The battery chassis monitoring device as described in claim 4, characterized in that, The sensor assembly includes a circuit board and a sensor, the sensor being disposed on the circuit board, and the circuit board having two terminals; The sensor module further includes a first wiring harness and a second wiring harness, which are electrically connected to corresponding terminals.

6. The battery chassis monitoring device as described in claim 5, characterized in that, The housing is provided with a receiving groove for accommodating the sensor assembly, and the two ends of the housing are respectively provided with a first port and a second port communicating with the receiving groove; The sensor module further includes a first wire harness holder and a second wire harness holder that are respectively inserted into the receiving slot from the first port and the second port, and both the first wire harness holder and the second wire harness holder are provided with wire passage channels. The first wire harness holder and the second wire harness holder have wire passage channels for the first wire harness and the second wire harness to pass through and extend into the receiving groove to be electrically connected to the corresponding terminal. The first wire harness holder and the second wire harness holder both include a stop portion that stops at the end of the housing and a plug portion that plugs into the receiving groove along the insertion direction. The stop portions of the first and second wire harness seats cooperate with the receiving groove to form a potting groove for injecting sealant.

7. The battery chassis monitoring device as described in claim 6, characterized in that, The sensor assembly is fixed to the receiving groove by adhesive. The sensor module also includes double-sided adhesive tape, which is disposed on the bottom surface of the housing and extends to the bottom surfaces of the first wiring harness seat and the second wiring harness seat. The double-sided adhesive tape is configured to fix the sensor module to the battery chassis.

8. The battery chassis monitoring device as described in claim 5, characterized in that, The housing covers the sensor assembly, and the housing has potting grooves at both ends, which are configured to fill with sealant for covering the areas where the first and second wire harnesses are connected to the circuit board.

9. The battery chassis monitoring device as described in claim 4, characterized in that, The two terminals are an input terminal and an output terminal. Each input terminal and output terminal includes a terminal block. The terminal block of the input terminal includes an internal input port and an external input port. The terminal block of the output terminal includes an internal output port and an external output port. The signal terminal of the sensor assembly is connected to a set of internal output ports of the output terminal. If this sensor module has an upstream sensor module, then the external output port corresponding to the internal output port of this group is connected to the external input port of the upstream sensor module. The input external port of the upstream sensor module corresponds to the input internal port, which is internally connected to the output internal port for signal transmission, and the detection signal of the downstream sensor module is uploaded through the corresponding output external port until the detection signal is transmitted to the output of the first sensor module. If this sensor module is the first sensor module among N sensor modules, then the output terminal serves as the output terminal of the N sensor modules; N is the number of sensor modules; If this sensor module has a downstream sensor module, then this sensor module connects to the internal input port corresponding to the external input port of the output terminal of the downstream sensor module, transmits signals through the internally connected output port, and uploads the detection signal of the downstream sensor module through the corresponding external output port, so as to transmit the detection signal to the output terminal of the first sensor module.

10. A vehicle, characterized in that, include: The vehicle body and the battery chassis monitoring device as described in any one of claims 1-9, wherein the battery chassis monitoring device is installed on the vehicle body.

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