Sensor mounting device

Abstract

A sensor mounting device characterized in that it comprises: a base plate (1) having a first groove (11) and a second groove (12) surrounding the first groove (11), wherein an air duct opening (13) is arranged in the second groove (12); a vacuum device connected to the air duct opening (13); a fastening device (2) having a first surface (21) and a second surface (22) facing away from each other, wherein the second surface (22) abuts the first groove (11), wherein the second surface (22) is provided with a third groove (23) for receiving a battery (5), wherein the fastening device (2) further comprises several mounting holes (24) extending from the first surface (21) to the third groove (23), wherein the mounting holes (24) are intended for receiving sensors; a sealing device arranged in the second groove (12);a pressing device (3) comprising several pressing rods (32), each pressing rod (32) corresponding to one of the mounting bores (24), the pressing rods (32) being guided through the mounting bores (24) and pressing the sensors under the influence of the vacuum device.

Description

TECHNICAL AREA The present application belongs to the field of battery testing technology and relates in particular to a sensor mounting device. STATE OF THE ART When testing batteries, several sensors must be attached to their surface to collect data during the test. Currently, this process is primarily manual, typically involving marking the sensor positions on the battery's surface, manually applying thermally conductive adhesive, positioning the sensor with tweezers or fingers, and gently pressing the sensor into place. This conventional method has drawbacks such as low efficiency, inconsistency, and cumbersome handling, making it difficult to ensure consistent installation quality. Furthermore, some thermally conductive adhesives are irritating, posing a contact and health risk when applied manually. CONTENT OF THE PRESENT APPLICATION The present application aims to provide a sensor mounting device that solves at least one of the following problems: low efficiency of manual sensor mounting, lack of consistency, or cumbersome handling. To solve the aforementioned technical problems, this application is implemented as follows: The embodiments of this application provide a sensor mounting device comprising: a base plate having a first groove and a second groove surrounding the first groove, wherein an air duct opening is arranged in the second groove; a vacuum device connected to the air duct opening; a mounting device having a first surface and a second surface facing away from each other, wherein the second surface abuts the first groove, wherein the second surface is provided with a third groove for receiving a battery, wherein the mounting device further comprises several mounting holes extending from the first surface to the third groove, wherein the mounting holes are intended for receiving sensors; a sealing device arranged in the second groove;a pressing device comprising several pressing rods, each pressing rod corresponding to one of the mounting holes, the pressing rods being guided through the mounting holes and pressing the sensors under the influence of the vacuum device. Optionally, the dimensions of the mounting hole increase along the direction from the first surface to the second surface. Optionally, the sensor mounting device further includes a protective pad, wherein the shape of the protective pad is adapted to the shape of the third groove, wherein the protective pad is arranged in the third groove, and wherein the protective pad serves to distribute the pressure exerted on the battery by the press bars. Optionally, the fastening device has a side surface, wherein the side surface is connected between the first surface and the second surface, wherein the side surface has a socket communicating with the third groove, the socket serving to guide the protective pad through and insert it into the third groove. Optionally, a bypass hole is provided on the side surface, the bypass hole being arranged corresponding to the mounting hole, the bypass hole communicating with the third groove, the bypass hole serving for cable routing of the sensor. Optionally, a diverting slot is also provided on the side surface, wherein the diverting slot communicates with the third groove, one end of the diverting slot is connected to the diverting hole and the other end of the diverting slot communicates with the second surface. Optionally, the depth of the first groove is greater than the depth of the second groove. Optionally, the pressing device also includes a press plate, with several of the press rods being connected to the press plate. Optionally, a buffer layer is attached to one end of the press rod, which is guided through the mounting hole. Optionally, the sealing device at least partially encloses the fastening device and the pressing device. The sensor mounting device is used to attach sensors to the surface of a battery and can partially replace manual steps. After the sensor has been attached to the battery surface, the battery is inserted into the third groove of the mounting device, with the sensor aligned with the mounting holes of the device and exposed. Adhesive is applied to the sensor through these mounting holes. The pressing device is then placed onto the mounting device, with the pressing bar acting through the mounting holes on the battery surface and pressing the adhesive-coated sensor to cure. A vacuum is created by vacuuming the area around the battery and sensor via air duct openings, and the pressing device exerts pressure on the battery under the vacuum.The pressure during the curing process can be regulated relatively precisely by controlling the power of the vacuum device, ensuring good consistency of sensor adhesion, which improves the accuracy, comparability and reliability of the sensor measurement data and enables fast, precise and standardized mounting of the sensors on the surface of the battery. Further aspects and advantages of the present application are partly mentioned in the following description, partly emerge from the following description or are recognized through the practice of the application. BRIEF DESCRIPTION OF THE DRAWING The aforementioned and / or additional aspects and advantages of the present application will become apparent and easily understandable from the following description of the embodiments in conjunction with the accompanying drawings, wherein: Fig. 1 shows an exploded view of the sensor mounting device according to the embodiment of the present application; Fig. 2 shows a schematic representation of the sensor mounting device according to the embodiment of the present application; Fig. 3 shows a schematic representation of the base plate according to the embodiment of the present application; Fig. 4 shows a schematic representation of the fastening device according to the embodiment of the present application; Fig. 5 shows a schematic representation of the fastening device according to the embodiment of the present application from a different angle; Fig.Figure 6 shows a schematic representation of the protective covering according to the embodiment of the present application; Figure 7 shows a schematic representation of the pressing device according to the embodiment of the present application. Illustration of the attached drawings: 1: Base plate; 11: First groove; 12: Second groove; 13: Air duct opening; 2: Mounting device; 21: First surface; 22: Second surface; 23: Third groove; 24: Mounting hole; 25: Bushing; 26: Deflection hole; 27: Deflection slot; 3: Pressing device; 31: Press plate; 32: Press rod; 33: Buffer layer; 4: Protective pad; 5: Battery. DETAILED DESCRIPTION The embodiments of this application are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, where identical or similar reference numerals denote identical or similar components or components with identical or similar functions. The embodiments described below with reference to the drawings are exemplary and serve only to illustrate this application and are not to be understood as limiting it. All further embodiments obtained from the embodiments of this application that are accessible to a person skilled in the art without inventive effort fall within the scope of protection of this application. The features designated as "first" and "second" in the description and claims of this application may expressly or implicitly include one or more of these features. In the description of this application, "several" means two or more unless otherwise specified. Furthermore, "and / or" in the description and claims indicates at least one of the related objects, with the sign " / " generally expressing an "or" relationship between the associated objects preceding and following it. In the description of this application, it is understood that the orientation and positional relationships indicated by the terms "center", "longitudinal direction", "transverse direction", "length", "width", "thickness", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumference", etc., are based on the orientation and positional relationships shown in the drawings. These terms serve only to simplify the description of this application and do not indicate or suggest that the device or component in question must have a specific orientation, be assembled and operated in a specific orientation, and therefore are not to be understood as a limitation of this application. In the description of this application, it should be noted that the terms "assemble," "connect," and "attach" are to be understood in the broadest sense, unless expressly defined and limited otherwise. For example, they may refer to a permanent connection, a detachable connection, or a one-piece connection; they may refer to a mechanical or an electrical connection; they may refer to a direct connection or an indirect connection via an intermediate element, as well as an internal connection between two components. For a person skilled in the art, the specific meanings of the aforementioned terms in the application can be understood depending on the specific situation. Battery performance testing is essential in the research and development and quality control processes of energy storage batteries. The development and production of lithium batteries typically require a series of standardized quality tests to verify their electrical performance, reliability, and safety. These tests primarily include capacity and discharge rate tests, cycle life tests, measurements of DC internal resistance, electrochemical impedance spectroscopy, tests under high and low storage temperatures and humid / warm environmental conditions, vibration tests, and drop tests. Furthermore, safety tests are conducted for overcharging, deep discharging, external short circuits, crushing, pinprick, and thermal runaway. Additionally, leak tests and non-destructive testing for internal defects are performed. During the aforementioned testing process, it is necessary to attach sensors to the battery surface to collect relevant data. For example, when conducting thermal runaway tests, several temperature sensors (such as thermocouples) must be installed on the battery surface to accurately monitor the temperature distribution under operating conditions such as charge and discharge cycles, as well as thermal abuse tests. Currently, this process is primarily performed manually, typically proceeding as follows: marking the positions on the battery surface, manually applying thermally conductive adhesive, placing the sensor with tweezers or fingers, and gently pressing the sensor down to secure it. This conventional method has numerous disadvantages: 1. Low efficiency: For large batteries requiring the installation of multiple sensors, the repetitive manual work is time-consuming and significantly impacts the test throughput rate. 2. Low consistency: Maintaining consistency in the amount and position of manual adhesive application, as well as the force and angle with which the sensor is pressed, is difficult. This leads to variations in the thermal contact resistance between the sensor and the battery surface, directly affecting the accuracy, comparability, and reliability of the temperature measurement data. 3. Complex operation and experience dependency: The entire process is divided into many small steps, requiring a high level of skill and patience from operators, resulting in high training costs. 4.Presence of safety risks: Some thermally conductive adhesives have mild irritant effects, which poses a risk of skin contact during manual work; in addition, uneven pressure during manual application can damage the sensitive sensor wiring. The current state of the art lacks a special device that enables fast, precise and standardized sensor mounting on the surfaces of energy storage batteries. To solve the aforementioned technical problems, the embodiment of the present application provides a sensor mounting device. The following describes, in conjunction with Figures 1, 2, 3, 4, 5, 6 to 7, the sensor mounting device implemented according to the embodiment of the present application, wherein Figure 1 shows an exploded view of the sensor mounting device according to the embodiment of the present application; wherein Figure 2 shows a schematic representation of the sensor mounting device according to the embodiment of the present application; wherein Figure 3 shows a schematic representation of the base plate according to the embodiment of the present application; wherein Figure 4 shows a schematic representation of the fastening device according to the embodiment of the present application; wherein Figure 5 shows a schematic representation of the fastening device according to the embodiment of the present application from a different angle; wherein Figure 6 shows the mounting device from the base plate according to the embodiment of the present application.Figure 6 shows a schematic representation of the protective covering according to the embodiment of the present application; wherein Figure 7 shows a schematic representation of the pressing device according to the embodiment of the present application. The embodiment of the present application proposes a sensor mounting device comprising: a base plate 1 having a first groove 11 and a second groove 12 surrounding the first groove 11, wherein an air duct opening 13 is arranged on the second groove 12; a vacuum device communicating with the air duct opening 13; a mounting device 2 with a first surface 21 and a second surface 22 facing away from each other, wherein the second surface 22 bears against the first groove 11 and a third groove 23 for receiving the battery 5 is provided on the second surface 22; wherein the mounting device 2 further comprises several mounting holes 24 extending from the first surface 21 to the third groove 23, the mounting holes 24 serving for receiving sensors; a sealing device placed in the second groove 12;and a pressing device 3, consisting of several pressing rods 32, wherein each pressing rod 32 is assigned exactly one mounting bore 24 and the pressing rods 32 are guided through the mounting bores 24, wherein the pressing rods 32 press the sensor under the influence of the vacuum device.; The sensor mounting device comprises a base plate 1, a fastening device 2, a pressing device 3, a vacuum device, and a sealing device. The base plate 1 and the fastening device 2 serve to secure the battery 5 and to attach the sensor to its surface. The pressing device 3 serves to firmly press the sensor onto the surface of the battery 5 while the adhesive cures. The vacuum device and the sealing device ensure a vacuum so that the pressing device 3 exerts a stable and uniform pressure on the sensor under the influence of atmospheric pressure.A first groove 11 and a second groove 12 are arranged on the base plate 1, with the first groove 11 serving to receive the battery 5 and the mounting device 2. The shape and dimensions of the first groove 11 correspond to the shape and dimensions of the mounting device 2. In some optional embodiments, the first groove 11 and the positioning device can be additionally fixed by connecting structures such as bolts or snap fasteners to prevent movement during the subsequent bonding, pressing, and curing processes. By way of example, a dowel pin hole is arranged at the bottom of the first groove 11, which interacts with the locating lug on the bottom of the mounting device 2 to ensure precise positioning of the mounting device 2.The inner wall of the first groove 11 can be provided with an elastic buffer layer 33 to simultaneously avoid the wear caused by the rigid contact of the battery 5 with the first groove 11. The mounting device 2 is provided with a third groove 23 on the second surface 22 of the base plate 1. Several mounting holes 24 are arranged between the third groove 23 and the first surface 21, the positions of which correspond to the positions of the sensors. When the battery 5 is inserted into the third groove 23, the sensors are exposed through the mounting holes 24, allowing adhesive to be applied to the sensor surface through these holes. The mounting device 2 is designed as a rectangular plate structure, with the contour and shape of the third groove 23 being identical to those of the battery 5 under test. Several mounting devices 2 can be configured to match the different battery 5 models. When testing different batteries 5, only the appropriate mounting device 2 needs to be selected; replacing the entire device is not required. The second groove 12 serves to receive the sealing device and is arranged around the outer edge of the first groove 11, such that the sealing device mounted on the second groove 12 also surrounds the fastening device 2 on the first groove 11 and thus seals the gap between the fastening device 2 and the base plate 1. It should be noted that both the first groove 11 and the second groove 12 are recessed relative to the upper surface of the base; the first groove 11 and the second groove 12 do not exhibit an absolute hierarchy of recession or protrusion. The sealing device fits tightly against the side surface of the mounting device 2 and against the inner wall of the second groove 12, thus forming a closed cavity. The sealing device can be an elastic seal such as a sealing ring or a sealing pad. Under the influence of a vacuum, the inner wall of the sealing ring fits tightly against the mounting device 2, while the outer wall forms a double seal with the inner wall of the second groove 12. Sealing rings can generate a preload during assembly to ensure initial sealing performance. Under the influence of spring force, it is pressed against the surface of the fastening device 2 to ensure a sealing function. In practical application, sealant can also be used as a sealing device by applying the sealant along the edge of the fastening device 2. An air duct opening 13 is provided at the second groove 12. With a sealed connection between the mounting device 2 and the base plate 1, suction through the air duct opening 13 creates a pressure difference between the cavity between the mounting device 2 and the base plate 1 and the external atmosphere. Under the influence of the external atmospheric pressure, the pressing device 3 moves towards the mounting device 2, thereby acting on the underlying sensor and the battery 5 and exerting a uniform tension on these devices to ensure consistent pressure during the curing process of the adhesive on the sensor. The air duct opening 13 is connected to the vacuum device, through which the air is extracted from the cavity, creating a vacuum environment inside the cavity.A check valve structure can be installed at the interface of the air line opening 13 to prevent a sudden pressure drop in the event of an unexpected failure of the vacuum device and thus ensure the continuity of the curing process. The vacuum device serves as a drive unit for the press 3 to generate pressure and can be designed as an integrated vacuum system consisting primarily of a vacuum pump, a pressure sensor, a control valve, and a control system. Vacuum adjustment is achieved by controlling the operating state of the vacuum pump and the opening width of the control valve. Furthermore, it is possible to predefine pressure-changing patterns according to process requirements. The vacuum device can be equipped with an overpressure protection device that automatically shuts down and triggers an alarm if the internal pressure falls below the safety limit, thus preventing damage to the device or deformation of the battery 5 due to excessive vacuum. The pressing device 3 comprises a pressing rod 32 that corresponds to the mounting bore 24. The pressing rod 32 can slide along the mounting bore 24. When the pressing device 3 is placed on the first surface 21 of the mounting device 2, the pressing rod 32 can be inserted into the corresponding mounting bore 24, with its end portion contacting the surface of the sensor exposed in the mounting bore 24. After the vacuum device is activated, a vacuum is created in the closed cavity formed by the sealing device and the base plate 1. The ambient atmospheric pressure acts on the pressing device 3 and causes an axial movement of the pressing rod 32 along the mounting bore 24, exerting a continuous and stable pressure on the sensor. This type of force transmission avoids the problem of uneven force application during manual operation.The sensors exhibit good consistency in their assembly quality, ensuring high measurement accuracy during testing and reducing measurement errors caused by inconsistent sensor placement. The vacuum adjustment allows the pressure parameter to be adapted to the requirements of different processes, ensuring that each sensor is subjected to uniform stress during the curing process. Simultaneously, the mounting hole 24 also serves a guiding function by effectively directing the pressure direction and preventing the sensor from shifting under pressure, further improving assembly accuracy. The sealing device is arranged in the second groove 12 of the base plate 1. When the mounting device 2 is placed in the first groove 11, the sealing device seals the space between the mounting device 2 and the base plate 1, ensuring that a stable vacuum is created in the sealed space when air is drawn through the air line opening 13. This eliminates the need for an additional mechanical drive structure in the pressing device 3. Instead, the pressure differential allows multiple sensors to press synchronously, simplifying the device's structure and preventing potential damage to the sensors or the battery 5 from mechanical contact. Simultaneously, the vacuum level can be controlled by the power of the vacuum device, precisely controlling the pressure exerted by the pressing device 3 on the battery 5 and the sensor.This allows for adaptation to different sensor types and the pressure requirements necessary for the adhesive to cure, thus further improving the flexibility and reliability of the assembly process. The mounting hole 24 not only serves to apply adhesive to the sensor and simultaneously guide the press rod 32 onto the sensor surface, but also fulfills a positioning function. The distribution of the mounting holes 24 on the first surface 21 of the mounting device 2 can be adjusted according to the actual testing requirements. The position and number of the mounting holes 24 correspond to the positions and number of sensors that need to be mounted on the surface of the battery 5. By pre-machining mounting holes 24 on the mounting device 2 that exactly match the sensor's mounting points, the sensor can be quickly positioned on the surface of the battery 5. This avoids the cumbersome step of manually marking the positions and significantly increases operational efficiency.Simultaneously, the diameter and depth of the mounting bore 24 can be adjusted according to the sensor dimensions to ensure that no lateral displacement of the sensor occurs during assembly, further guaranteeing the accuracy of sensor positioning. This positioning method ensures that a high degree of consistency in mounting precision is maintained when sensors are mounted by different batches and operators. This creates a reliable basis for the subsequent performance tests of the battery 5 and reduces test errors caused by inconsistent sensor mounting. When using the sensor mounting device described in this embodiment to mount a sensor on the battery 5, the sensor is first placed on the surface of the battery 5 to perform a preliminary positioning. The side of the sensor with the sensor itself facing upwards is inserted into the first groove 11 of the base. The mounting device 2 is then placed over the battery 5, with the battery 5 positioned between the first groove 11 and the third groove 23. It is checked whether the sensors correspond to the mounting holes 24. If the sensors are not positioned correctly, their positions are adjusted so that all sensors are centered within the mounting holes 24. After the sensors have been aligned, the adhesive is applied to the sensor through the mounting holes 24.The pressing device 3 is then placed onto the mounting device 2, with the pressing rod 32 acting through the mounting holes 24 on the surface of the battery 5 and pressing the adhesive-coated sensor to cure. A vacuum is created by vacuuming the area around the battery 5 and sensor via air duct openings 13, causing the pressing device 3 to exert pressure on the battery 5 under the vacuum. During the adhesive curing process, the pressure in the cavity can be monitored and regulated in real time by a vacuum device to ensure that the pressure remains stable within the preset range. Once curing is complete, the vacuum device is switched off. As soon as the pressure in the cavity returns to atmospheric pressure, the pressing device 3 and the mounting device 2 can be removed, thus completing the sensor assembly. From an operational safety perspective, the sensor mounting device used in this embodiment avoids direct contact between the operator and the adhesive. In practical application, this device can be combined with automated adhesive application systems, where the precise positioning of the mounting bore 24 enables metered application of the adhesive, further increasing the level of process automation. The vacuum device's control system can adjust the pressure in stages according to the different curing properties of the adhesive. For example, a lower pressure is used in the initial stage to prevent adhesive overflow, the pressure is gradually increased in the middle curing stage to promote adhesive penetration, and a constant pressure is maintained in the late curing stage to ensure adhesive strength.This enables intelligent pressure control. Furthermore, the device's modular design simplifies maintenance management, as all core components can be independently disassembled and replaced, reducing subsequent operating costs. The base plate 1 and the surface of the mounting fixture 2 feature alignment markings to facilitate quick initial assembly positioning and shorten system commissioning time. For high-temperature test environments, the device can also integrate a temperature compensation module. This module uses a built-in temperature sensor to monitor temperature changes within the sealed chamber in real time and automatically adjusts the vacuum parameters to compensate for the effect of temperature on air pressure, thus ensuring pressure control precision despite fluctuations in ambient temperature. The device automates and standardizes sensor assembly through the interaction of the base plate 1, the vacuum device, the mounting device 2, the sealing device, and the pressing device 3. After the battery 5 is inserted into the third groove 23 of the mounting device 2, the sensor can be precisely aligned on the surface of the battery 5 via the mounting bore 24. The sealing device forms a closed space in the second groove 12. The vacuum device creates a vacuum inside through the air line opening 13. In this case, the pressing rod 32 of the pressing device 3 moves downwards along the mounting bore 24 due to the pressure differential, exerting a uniform and controllable pressure on the sensor. This effectively avoids the problem of uneven pressure caused by manual operation.At the same time, the arrangement of multiple mounting holes 24 allows for the simultaneous mounting of several sensors, which significantly increases assembly efficiency. Furthermore, by adjusting the vacuum parameters, the mounting pressure can be adapted to different sensor models, thereby increasing the device's versatility. During sensor installation, no manual marking of positions or repeated calibration is required, significantly reducing positional deviations caused by visual errors or hand tremors. This application utilizes pressure-assisted sensor bonding, where the pressure during the curing process can be controlled relatively precisely by regulating the power of the vacuum device. This ensures consistent sensor adhesion, improving the accuracy, comparability, and reliability of sensor measurement data and enabling fast, precise, and standardized sensor installation on the battery surface. It effectively solves problems such as low efficiency, lack of consistency, cumbersome operation, and potential safety risks associated with conventional manual sensor installation. Furthermore, in some optional embodiments, the dimensions of the mounting bore 24 increase along the direction from the first surface 21 to the second surface 22. The mounting bore 24 has a conical structure, with a smaller diameter at the top and a larger diameter at the bottom. When the adhesive is applied to the sensor, its fluidity causes it to spread laterally. The larger bore diameter at the bottom provides space for the adhesive to spread and prevents it from reaching the bore wall of the mounting bore 24. This facilitates the separation of the mounting device 2 from the battery 5 after assembly, thus reducing displacement or damage to the sensor caused by adhesive adhesion. Once the adhesive has cured, the battery 5 can be removed from the device without any bonding between the sensor and the mounting device 2, preventing the sensor from tearing or detaching. Furthermore, this reduces the amount of adhesive remaining on the mounting device 2 and thus decreases the cleaning frequency.Simultaneously, the conical structure of the mounting bore 24 provides improved guidance by applying the adhesive to the center of the sensor. The adhesive spreads evenly from the center of the mounting bore 24 outwards. The press rod 32, guided through the mounting bore 24, is also positioned opposite the central area of ​​the sensor. This ensures that the pressure of the press rod 32 acts on the central adhesive area of ​​the sensor and prevents uneven adhesive distribution due to eccentric positioning of the press rod 32. The positioning and guidance properties of the mounting bore 24 effectively control the sensor's mounting position error, significantly exceeding the error level of manual marking.The entire operating process of the device significantly reduces working time compared to the conventional manual method and, by exchanging mounting devices of 2 different specifications, allows adaptation to different types of battery 5, which ensures high compatibility. Furthermore, optional embodiments also include a protective pad 4, the shape of which is adapted to the shape of the third groove 23. The protective pad 4 is arranged in the third groove 23 and serves to distribute the pressure exerted by the press rod 32 on the battery 5. After the adhesive has been applied, the protective pad 4 is placed between the battery 5 and the mounting device 2. The pressing rod 32 is then inserted to press the sensor into place after the adhesive has been applied, preventing the pressing rod 32 from coming into direct contact with the sensor and the adhesive. The pressing rod 32 indirectly exerts pressure on the battery 5 and the sensors on its surface via the protective pad 4, distributing the pressure evenly from the end of the pressing rod 32 to the surrounding areas. Furthermore, the protective pad 4 acts as a buffer to prevent the pressing rod 32 from causing pressure marks or damage to the surface of the battery 5. The protective pad 4 is made of materials such as silicone or rubber. The adhesive force between the protective pad 4 and the adhesive is relatively low, so that after the adhesive has cured, the battery 5 equipped with the sensor can be separated from the protective pad 4 relatively easily. This prevents adhesive residue from remaining on the protective pad 4 and the press rod, which could impair subsequent use. At the same time, the protective pad 4 can cushion the impact force of the press rod 32 on the surface of the battery 5 and prevent the battery 5 housing from being deformed or damaged due to excessive local pressure. It must be able to withstand temperature changes during the adhesive curing process as well as potential chemical corrosion from the adhesive in order to ensure stable damping performance and structural integrity even after many years of use.When the pressing rod 32 exerts pressure on the sensor, the protective pad 4 distributes the pressure evenly over the surface of the battery 5 to avoid excessive local stress and resulting damage to the battery 5. Furthermore, in some optional embodiments, the fastening device 2 has a side surface, the side surface being connected between the first surface 21 and the second surface 22. The side surface is provided with a bushing 25 that communicates with the third groove 23, the bushing 25 serving to guide the protective pad 4 through it and insert it into the third groove 23. The size of the socket 25 is slightly larger than the thickness and width of the protective pad 4, allowing the protective pad 4 to be inserted from the socket 25 into the third groove 23. The socket 25 extends horizontally and is located near the first surface 21, enabling the protective pad 4 to be inserted above the battery 5 without having to remove the battery 5 from the third groove 23. When the adhesive application is complete and it is necessary to position the protective pad 4, the operator can slightly lift the fastening device 2 to create space for the protective pad 4 between the top of the battery 5 and the bottom of the third groove 23. The protective pad 4 is then slid evenly between the battery 5 and the bottom of the third groove 23 via the socket 25.Afterwards, the mounting device 2 is lowered again, and the pressing device 3 is mounted onto the mounting device 2 to perform the pressing and curing process. The protective pad 4 can be replaced or installed without disassembling the mounting device 2 and the battery 5, thus preventing the sensors from shifting on the battery 5 and the adhesive from overflowing when the battery 5 is moved. The installation process for the protective pad 4 has been simplified, reducing the number of steps and further increasing installation efficiency. At the same time, the risk of damage to the battery 5 and the sensors caused by frequent disassembly of the mounting device 2 is reduced.After the protective pad 4 has been mounted through the bushing 25, its edge fits tightly against the inner wall of the third groove 23, preventing slippage during the pressing process and thus ensuring that the pressure is transferred to the sensor in a stable and even manner. Furthermore, in some optional embodiments, a bypass hole 26 is provided on the side surface, wherein the bypass hole 26 is arranged corresponding to the mounting bore 24, wherein the bypass hole 26 communicates with the third groove 23, and wherein the bypass hole 26 serves for cable guidance of the sensor. As shown in the figure, a plurality of escape holes 26 are provided on the side surface of the mounting device 2, which are connected to the third groove 23. The escape holes 26 are arranged at the bottom of the third groove 23 and each corresponds to the mounting holes 24. The sensor body is located within the mounting holes 24, while the sensor cables are routed out through the mounting holes 24 on the side surface. The diameter of the escape hole 26 ensures that the cables can be easily routed through without creating an excessively large gap, so as not to compromise the stability of the vacuum environment during the vacuuming process. During sensor mounting, the cable is routed through the escape hole 26 to prevent it from accumulating on the surface of the battery 5, which could interfere with the application of the adhesive and the pressing for curing.At the same time, this allows for neat routing and storage of the cable, thus preventing the cable from becoming tangled. Furthermore, the position of the bypass hole 26 is located next to the mounting hole 24, thus optimizing cable routing and ensuring that the sensor is not obstructed during installation and crimping. The bypass hole 26 is round or arc-shaped to prevent damage to the cables from sharp edges during insertion and movement, protecting the insulation layer and inner conductors and ensuring stable sensor signal transmission. For sensor cables of different specifications, the mounting device 2 can be adapted by replacing it with the appropriate bypass holes 26, further increasing the device's compatibility and practicality. Furthermore, in some optional embodiments, a deflection slot 27 is provided on the side surface, wherein the deflection slot 27 communicates with the third groove 23, one end of the deflection slot 27 is connected to the deflection hole 26 and the other end of the deflection slot 27 communicates with the second surface 22. A bypass slot 27 is arranged below the bypass hole 26, extending to the second surface 22 and communicating with the outside. The sensor cables can be inserted along the bypass slot 27 into the bypass hole 26 to ensure that, when the battery 5 is inserted into the mounting device 2, the sensor cables can be easily guided through the side wall of the mounting device 2 and the sensor is located in the mounting bore 24. When the battery 5 is installed, the cable passes through the bypass slot 27 and the bypass hole 26, which are located on the mounting device 2. The cable runs naturally along the path of the bypass slot 27 into the bypass hole 26, thus preventing the cable from bending or becoming tangled within the mounting device 2 and also facilitating quick identification of the cable and the sensor connected to it. The width of the bypass slot 27 is slightly larger than the diameter of the cable to ensure both smooth cable passage and a degree of cable restraint. In multi-sensor installations, the cables of the various sensors can be routed independently through the corresponding bypass slots 27 and bypass holes 26, effectively preventing cable entanglement and improving internal organization. Furthermore, in some optional embodiments, the depth of the first groove 11 is greater than the depth of the second groove 12. The first groove 11 is countersunk into the second groove 12, and the boundary between the first groove 11 and the second groove 12 serves to fix and limit the battery 5, thus facilitating quick and precise assembly by the operator and increasing the assembly efficiency of the device. The second groove 12 accommodates the sealing device, and its shallow depth allows the sealing device to be positioned so that it fits snugly against the side surface of the mounting device 2 and the top of the base plate 1, ensuring a good seal, preventing air leakage during operation of the vacuum device, and maintaining a stable vacuum environment.At the same time, the difference in depth between the first groove 11 and the second groove 12 provides a clear positioning for the mounting of the fastening device 2 and the sealing device, facilitates assembly and acts as a limit. Furthermore, in some optional embodiments, the press device 3 also includes a press plate 31, with several of the press rods 32 being connected to the press plate 31. Several press rods 32 have the same length and are connected to the same press plate 31. The press rods 32 and the press plate 31 can be integrally or detachably connected. In this embodiment, no further restrictions are imposed regarding the type of connection between the press plate 31 and the press rods 32, nor regarding the specific structure of the press plate 31. The arrangement of the press plate 31 enables synchronous movement of several press rods 32, ensuring that each press rod 32 exerts uniform and consistent pressure on the sensors during the pressing process. This prevents differing local vacuum conditions from leading to varying pressing forces on the press rods 32 and thus uneven loads on the individual sensors, which could cause quality differences.The material of the press plate 31 can be selected from high-strength alloys or engineering plastics to ensure its structural stability and service life. Simultaneously, the multiple press rods 32 attached to the press plate 31 are arranged in parallel, so that when the battery 5 and the sensor are pressed together through the mounting bore 24 by means of the press rods 32, each individual press rod 32 can penetrate perpendicularly into the mounting bore 24, thus preventing uneven pressure distribution due to misalignment. Guide pins can also be attached to the press plate 31, which interact with the guide bores of the mounting device 2 to further ensure the verticality of the press rod 32's direction of movement. This increases the stability and reliability of the overall pressure, ensuring that the sensor experiences a consistent force during the curing process, which in turn improves the overall quality and consistency of the sensor assembly.This device uses a vacuum-driven synchronous pressing mechanism that ensures a uniform distribution of force across multiple sensors during the curing process, thus effectively reducing sensor measurement deviations caused by differences in pressure. Furthermore, in some optional embodiments, the press rod 32 inserted at one end of the mounting bore 24 is provided with a buffer layer 33. The buffer layer 33 at the end of the pressing rod 32 is made of a flexible material such as silicone rubber, polyurethane foam, or nitrile rubber, which possesses excellent elasticity and heat resistance. This prevents pressure points or damage to the sensor surface and effectively absorbs the impact force during the pressing process. This minimizes the risk of sensor cable breakage and significantly increases the safety of the operating process. The thickness of the buffer layer 33 is controlled to 1–3 millimeters to ensure both effective pressure transmission and to compensate for thickness differences between various sensors. It provides damping when the pressing rod 32 contacts the sensor to prevent damage from rigid impacts, and, through its own deformation, increases the contact area with the sensor surface, resulting in a more uniform pressure distribution.The buffer layer 33 is removable, which facilitates replacement and increases the service life of the device. If the buffer layer 33 shows signs of wear, aging, or adhesive contamination due to long-term use, the operator can remove the old buffer layer 33 directly from the end of the press bar 32 and replace it with a new buffer layer 33 without having to replace the entire press bar 32. Furthermore, in some optional embodiments, the sealing device at least partially encloses the fastening device 2 and the pressing device 3. It can effectively improve the overall tightness of the device to prevent leakage during operation of the vacuum device and ensures a stable vacuum zone between the mounting device 2 and the base plate 1. This ensures that the press rod 32 exerts uniform and continuous pressure on the sensor, further increasing the strength and consistency of the sensor assembly. At the same time, the sealing device also provides a degree of protection for the housing of the mounting device 2 and the press device 3, thereby reducing the influence of the external environment on the internal structure of the device and extending its service life. Sealing devices are generally made of flexible material with good sealing properties, such as fluororubber or silicone, and are shaped to fit the second groove 12 and the contours of the mounting device 2 and the pressing device 3. When the sealing device is inserted into the second groove 12, its edge can fit snugly against the inner wall of the second groove 12, while simultaneously extending upwards to enclose the sides of the mounting device 2 and the outer circumference of the pressing device 3, creating a relatively closed cavity. This design effectively prevents outside air from entering the vacuum environment and ensures that the vacuum device can quickly establish and maintain a stable vacuum, thus providing the pressing device 3 with a continuous and uniform pressure source.Simultaneously, the sealing device's encapsulation structure provides a degree of protection for the fastening device 2 and the pressing device 3, thereby reducing the influence of external environmental factors such as dust and moisture on the device's internal structure and extending its service life. Furthermore, the sealing device's elastic properties allow for minor positional adjustments of the fastening device 2 and the pressing device 3 within a certain range, thus preventing sealing failures due to assembly inaccuracies. The specific procedure for mounting the sensor on the surface of the battery 5 using the sensor mounting device provided in this application is as follows: First, the device is checked to ensure that the vacuum device, the pressing device 3, and other components are functioning correctly; then, a suitable mounting device 2 is selected according to the type of battery 5. The battery 5 is placed in the center of the first groove 11 of the base plate 1, and the sensor is positioned on top of the battery 5 with the sensor cable exiting from the side surface. Next, the third groove 23 of the mounting device 2 is aligned with the battery 5, the mounting device 2 is placed over the battery 5, and the position of the sensor is adjusted to align with the mounting holes 24.The sensor cables pass through the bypass slot 27 and the bypass hole 26. Adhesive is then applied evenly to the sensor surface through the mounting hole 24, carefully controlling the amount of adhesive to prevent overflow. Next, the press 3 is placed on the mounting fixture 2, aligning and inserting the press rod 32 into the mounting hole 24. The vacuum device is then activated and set to the preset pressure, which is maintained until the adhesive has cured. Once curing is complete, the vacuum device is deactivated.After the pressure is restored, the pressing device 3 and the fastening device 2 are removed; finally, the quality of the sensor assembly is checked to ensure that there are no displacements or air bubbles and that the cable connection is working properly. Throughout the entire operating process, a standardized positioning and pressing mechanism increases assembly efficiency. Compared to conventional manual operation, assembly time can be significantly reduced; at the same time, assembly consistency is improved, sensor positional deviation is low, and test accuracy is high, which helps to reduce test disruptions. Furthermore, operational safety is increased by avoiding direct contact between personnel and the adhesive and sensors, thus reducing operational risks. By exchanging different mounting devices, the system can be adapted to different battery specifications and types to meet the requirements of various test scenarios. This effectively eliminates the randomness of human intervention and significantly increases the consistency and reliability of sensor assembly. Further details of the sensor mounting device described in the present application, such as the specific structure of vacuum devices and sealing devices and their operation, are already known to the person skilled in the art in this field and are not explained in further detail here. In this description, descriptions referring to terms such as "an embodiment," "some embodiments," "schematic embodiment," "example," "specific example," or "some examples" indicate that a specific feature, structure, material, or property described in connection with these embodiments or examples is included in at least one embodiment or example of the present application. In this description, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or properties may be combined appropriately in any one or more embodiments or examples. Although embodiments of the present application have been shown and described, it is understood by the person skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without deviating from the principles and purpose of the present application, and the scope of protection of the present application is determined by the claims and their equivalents.

Claims

Sensor mounting device, characterized in that it comprises: a base plate (1) having a first groove (11) and a second groove (12) surrounding the first groove (11), wherein an air duct opening (13) is arranged in the second groove (12); a vacuum device connected to the air duct opening (13); a fastening device (2) having a first surface (21) and a second surface (22) facing away from each other, wherein the second surface (22) abuts the first groove (11), wherein the second surface (22) is provided with a third groove (23) for receiving a battery (5), wherein the fastening device (2) further comprises several mounting holes (24) extending from the first surface (21) to the third groove (23), wherein the mounting holes (24) are intended for receiving sensors; a sealing device arranged in the second groove (12);a pressing device (3) comprising several pressing rods (32), each pressing rod (32) corresponding to one of the mounting bores (24), the pressing rods (32) being guided through the mounting bores (24) and pressing the sensors under the influence of the vacuum device. Sensor mounting device according to claim 1, characterized in that the dimensions of the mounting bore (24) increase along the direction from the first surface (21) to the second surface (22). Sensor mounting device according to claim 1, characterized in that it further comprises a protective pad (4), wherein the shape of the protective pad (4) is adapted to the shape of the third groove (23), wherein the protective pad (4) is arranged in the third groove (23), wherein the protective pad (4) serves to distribute the pressure exerted on the battery (5) by the press rods (32). Sensor mounting device according to claim 3, characterized in that the fastening device (2) has a side surface, wherein the side surface is connected between the first surface (21) and the second surface (22), wherein the side surface has a socket (25) communicating with the third groove (23), wherein the socket (25) serves to guide the protective pad (4) through it and insert it into the third groove (23). Sensor mounting device according to claim 1, characterized in that a deflection hole (26) is provided on the side surface, wherein the deflection hole (26) is arranged corresponding to the mounting bore (24), wherein the deflection hole (26) communicates with the third groove (23), wherein the deflection hole (26) serves for cable guidance of the sensor. Sensor mounting device according to claim 5, characterized in that a bypass slot (27) is further provided on the side surface, wherein the bypass slot (27) communicates with the third groove (23), one end of the bypass slot (27) is connected with the bypass hole (26) and the other end of the bypass slot (27) communicates with the second surface (22). Sensor mounting device according to claim 1, characterized in that the depth of the first groove (11) is greater than the depth of the second groove (12). Sensor mounting device according to claim 1, characterized in that the pressing device (3) further comprises a pressing plate (31), wherein several of the pressing rods (32) are connected to the pressing plate (31). Sensor mounting device according to claim 1, characterized in that a buffer layer (33) is attached to one end of the press rod (32) which is guided through the mounting bore (24). Sensor mounting device according to claim 1, characterized in that the sealing device at least partially encloses the fastening device (2) and the pressing device (3).

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