Battery testing mechanism, and battery testing method and device

Abstract

A battery testing mechanism and a battery testing method and device, belonging to the technical field of batteries. The battery testing mechanism comprises: two probes (100) configured to be respectively in electrical contact with a total positive electrode and a total negative electrode of a battery to be tested; a movement mechanism (200) on which the two probes (100) are provided, the movement mechanism (200) comprising a mounting plate (210) provided with a first proximity sensor component (320) and being configured to move towards the battery such that the two probes (100) are respectively in electrical contact with the total positive electrode and the total negative electrode of the battery; and an over-compression detection device (300) provided on the movement mechanism (200), wherein the over-compression detection device (300) comprises a second proximity sensor component (330), the second proximity sensor component (330) cooperates with the first proximity sensor component (320) to detect whether the distance therebetween is less than a predetermined value, and if the distance is less than the predetermined value, it is indicated that the battery is compressed beyond a predetermined extent. The battery testing mechanism can solve the problem of battery damage caused by over-compression of the battery by the probes during testing.

Description

Battery testing mechanism, battery testing method and device

[0001] Cross-references

[0002] This application refers to Chinese Patent Application No. 2024101831792, filed on February 19, 2024, entitled “Battery Testing Mechanism, Battery Testing Method and Device,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the field of battery technology, and in particular to a battery testing mechanism, a battery testing method, and a battery testing device. Background Art

[0004] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. Electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of the sustainable development of the automotive industry. For electric vehicles, battery technology is a key factor in their development.

[0005] Before leaving the factory, batteries are typically tested to evaluate their performance. In related technologies, probes are electrically connected to the battery's positive and negative output terminals, and appropriate test current and time are selected to obtain parameters such as the battery's voltage and current.

[0006] Summary of the Invention

[0007] The present application aims to solve at least one of the technical problems in the background art. To this end, one purpose of the present application is to provide a battery testing mechanism to improve the problem of battery damage caused by excessive compression of the battery by a probe during the test process.

[0008] An embodiment of the first aspect of the present application provides a battery testing mechanism, comprising: two probes, configured to electrically contact the total positive pole and the total negative pole of the battery to be tested, respectively; a moving mechanism, on which the two probes are arranged, and the moving mechanism is configured to be able to move toward the battery so that the two probes are electrically contacted with the total positive pole and the total negative pole of the battery, respectively; and an anti-overpressure detection device, arranged on the moving mechanism, configured to press the battery during the period when the two probes are electrically contacted with the total positive pole and the total negative pole of the battery, and detect whether the battery is pressed beyond a predetermined degree, wherein the moving mechanism includes a mounting plate, on which a first proximity sensor assembly is mounted, and the anti-overpressure detection device includes: at least one guide rod, configured to pass through the mounting plate, and a first end of the at least one guide rod is used to press the battery; and a second proximity sensor assembly, fixedly connected to the at least one guide rod, the second proximity sensor assembly cooperates with the first proximity sensor assembly to detect whether the distance between the second proximity sensor assembly and the first proximity sensor assembly is less than a predetermined value, wherein a distance less than the predetermined value indicates that the battery is pressed beyond a predetermined degree.

[0009] In the technical solution of the embodiment of the present application, a battery testing mechanism with an anti-overpressure detection device can provide safety protection for the battery to prevent the battery from being damaged by excessive pressure. The provision of a proximity sensor assembly on the battery testing mechanism can further improve the accuracy of the judgment of the degree of pressure applied to the battery, so that the battery testing mechanism of the present application can detect and respond to pressure changes more quickly and accurately, providing a more reliable overvoltage protection function. In addition, the predetermined degree of pressure applied to the battery can be adjusted according to actual needs. Appropriate safety thresholds can be set according to the size and characteristics of different types of batteries to meet the needs of different application scenarios.

[0010] In some embodiments, at least one guide rod includes a second end opposite the first end, the first end and the second end being located on opposite sides of the mounting plate. A second proximity sensor assembly is disposed at either end of any one of the at least one guide rods, with the first proximity sensor assembly and the second proximity sensor assembly being disposed correspondingly. This arrangement of the sensor assemblies increases the flexibility of the battery testing mechanism, allowing the positions of the sensor assemblies to be adjusted according to actual needs.

[0011] In some embodiments, a corresponding bearing is disposed between the second end of at least one guide rod and the mounting plate, and the bearing is fixed to the mounting plate. The bearing can provide support and guidance for the guide rod in linear motion, enabling the guide rod to perform smooth linear motion along a predetermined track.

[0012] In some embodiments, a corresponding first elastic component is sleeved between the first end of at least one guide rod and the mounting plate. The provision of the elastic component helps the guide rod return to its original position.

[0013] In some embodiments, the first elastic component includes a spring. The spring is provided between the first end of the guide rod and the mounting plate to help the guide rod return to its original position.

[0014] In some embodiments, the first proximity sensor assembly includes a photosensor and the second proximity sensor assembly includes a sensing component; or the first proximity sensor assembly includes a sensing component and the second proximity sensor assembly includes a photosensor. The photosensor and the corresponding sensing component can provide a more accurate detection capability for the battery testing mechanism.

[0015] In some embodiments, the photosensor includes a light emitter and a light receiver facing each other with a gap between them. The sensing component includes a light barrier. The photosensor is configured to trigger a detection signal when the light barrier is within the gap. The detection signal indicates that the distance between the photosensor and the sensing component is less than a predetermined value. By providing the photosensor with a light emitter and a light receiver facing each other, more accurate detection capabilities can be provided for battery testing mechanisms.

[0016] In some embodiments, the first end of each of the at least one guide rod is formed into a boss-shaped pressing block for pressing against the battery. Forming the first end of the guide rod into a boss-shaped pressing block can increase the contact area between the overpressure detection device and the battery, reducing damage to the battery during pressing.

[0017] In some embodiments, the two probes and the first end of at least one guide rod are disposed on the same side of a mounting plate, and the battery testing mechanism further includes a pressure sensor and a second elastic component. The pressure sensor is disposed on the side of the mounting plate where the two probes are disposed, and the second elastic component is disposed between the two probes and the pressure sensor, such that the pressure sensor can sense the pressure exerted on the two probes via the second elastic component. The pressure sensor and the elastic component can be used to detect the pressure exerted on the two probes when they are in electrical contact with the total positive and negative electrodes of the battery.

[0018] In some embodiments, the second elastic component comprises a spring. The spring is provided between the probe and the pressure sensor so that the pressure exerted on the probe when the probe is in electrical contact with the total positive electrode and the total negative electrode of the battery can be obtained.

[0019] In some embodiments, the motion mechanism is configured to be movable in a first direction and a second direction perpendicular to the first direction to adjust the distance from the battery. This configuration of the motion mechanism can increase the flexibility and adaptability of the battery testing mechanism.

[0020] In some embodiments, the two probes have multiple mounting positions on the motion mechanism so that the position between the two probes is adjustable. Providing multiple mounting positions for the probes on the motion mechanism can be compatible with batteries of different sizes.

[0021] An embodiment of a second aspect of the present application provides a battery testing method, which is applied to a battery testing mechanism. The battery testing mechanism includes: two probes configured to electrically contact the total positive and total negative electrodes of a battery to be tested; a motion mechanism on which the two probes are disposed, the motion mechanism configured to move toward the battery so that the two probes electrically contact the total positive and total negative electrodes of the battery; and an overvoltage detection device disposed on the motion mechanism and configured to press against the battery while the two probes are in electrical contact with the total positive and total negative electrodes of the battery, wherein the motion mechanism includes a mounting plate on which a first proximity sensor assembly is mounted, and the overvoltage detection device includes: at least one guide rod configured to extend through the mounting plate, a first end of the at least one guide rod configured to press against the battery; and a second proximity sensor assembly fixedly connected to the at least one guide rod, the second proximity sensor assembly cooperating with the first proximity sensor assembly to detect whether a distance between the second proximity sensor assembly and the first proximity sensor assembly is less than a predetermined value, wherein a distance less than the predetermined value indicates that the battery is pressed beyond a predetermined extent. The method includes: controlling a motion mechanism to move toward a battery to be tested so that two probes make electrical contact with the battery's common positive and common negative electrodes, respectively; receiving a detection signal from an overvoltage detection device, the detection signal indicating that the battery has been pressed by the overvoltage detection device beyond a predetermined degree, and the detection signal being generated in response to the distance between the second proximity sensor assembly and the first proximity sensor assembly being less than a predetermined value; and triggering a protective action in response to receiving the detection signal. By including the proximity sensor assembly in the motion mechanism, the accuracy of determining the degree of pressure on the battery can be further improved, thereby providing a more reliable overvoltage protection function.

[0022] In some embodiments, the protection action includes at least one of the following: the battery test mechanism issues an alarm; or the battery test mechanism shuts down. Further setting the protection action can better protect the battery to be tested.

[0023] A third aspect of the present application provides a battery testing device for use in a battery testing mechanism. The battery testing mechanism includes: two probes configured to electrically contact the total positive and total negative electrodes of a battery to be tested; a motion mechanism on which the two probes are disposed, the motion mechanism configured to move toward the battery so that the two probes electrically contact the total positive and total negative electrodes of the battery; and an overvoltage detection device configured to press against the battery while the two probes are in electrical contact with the total positive and total negative electrodes of the battery, wherein the motion mechanism includes a mounting plate on which a first proximity sensor assembly is mounted. The overvoltage detection device includes: at least one guide rod configured to extend through the mounting plate, a first end of the at least one guide rod configured to press against the battery; and a second proximity sensor assembly fixedly connected to the at least one guide rod, the second proximity sensor assembly cooperating with the first proximity sensor assembly to detect whether a distance between the second proximity sensor assembly and the first proximity sensor assembly is less than a predetermined value, wherein a distance less than the predetermined value indicates that the battery is pressed beyond a predetermined extent. The device includes: a first module, used to control the movement of the motion mechanism toward the battery to be tested so that the two probes are electrically contacted with the total positive electrode and the total negative electrode of the battery respectively; a second module, used to receive a detection signal from the overpressure prevention detection device, the detection signal indicating that the battery is pressed by the overpressure prevention detection device to exceed a predetermined degree, and the detection signal is generated in response to the distance between the second proximity sensor component and the first proximity sensor component being less than a predetermined value; and a third module, used to trigger a protection action in response to receiving the detection signal.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0026] FIG1 is a schematic structural diagram of a battery testing mechanism according to some embodiments of the present application;

[0027] FIG2 is a schematic diagram of a portion of a battery testing mechanism according to some embodiments of the present application; and

[0028] FIG3 is a schematic diagram of a portion of a battery testing mechanism according to some embodiments of the present application.

[0029] Explanation of the accompanying drawings: 100 probe, 200 motion mechanism, 300 overpressure detection device; 400 pressure sensor, 500 second elastic component, 600 frame, 700 screw rod, 800 servo motor; 210 mounting plate; 310 guide rod, 310a first guide rod, 310b second guide rod, 320 first proximity sensor assembly, 330 second proximity sensor assembly, 340 bearing, 350 first elastic component, 360 pressure block. DETAILED DESCRIPTION

[0030] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0032] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0033] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0035] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0036] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application.

[0037] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0038] Currently, market developments indicate that power batteries are increasingly being used. Power batteries are not only used to power energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace applications. As power battery applications continue to expand, market demand is also growing.

[0039] Batteries typically undergo performance tests before leaving the factory, such as DC impedance testing and cell consistency testing. In related technologies, a probe is typically pressed down using pre-set pressure parameters in the servo system to ensure electrical contact with the positive and negative electrodes of the battery under test and provide a certain level of pressure. However, during testing, there are cases where the probe over-compresses the battery due to inaccurate actual pressure data, resulting in damage.

[0040] Referring to Figures 1-3, Figure 1 shows a structural schematic diagram of a battery testing mechanism in some embodiments of the present application, Figure 2 shows a structural schematic diagram of a portion of a battery testing mechanism in some embodiments of the present application, and Figure 3 shows a structural schematic diagram of a portion of a battery testing mechanism in some embodiments of the present application.

[0041] An embodiment of the present application provides a battery testing mechanism comprising two probes 100, a motion mechanism 200, and an overvoltage detection device 300. The two probes 100 are configured to electrically contact the total positive and total negative poles of a battery to be tested (not shown). The two probes 100 are mounted on the motion mechanism 200, which is configured to move toward the battery so that the two probes 100 electrically contact the total positive and total negative poles of the battery. The overvoltage detection device 300 is mounted on the motion mechanism 200 and is configured to press against the battery while the two probes 100 are in electrical contact with the total positive and total negative poles of the battery, and detect whether the battery is pressed beyond a predetermined level. The motion mechanism 200 includes a mounting plate 210, on which a first proximity sensor assembly 320 is mounted. The overvoltage detection device 300 includes at least one guide rod 310 and a second proximity sensor assembly 330. The at least one guide rod 310 is configured to extend through the mounting plate 210, and its first end is configured to press against the battery. The second proximity sensor assembly 330 is fixedly connected to at least one guide rod 310. The second proximity sensor assembly 330 cooperates with the first proximity sensor assembly 320 to detect whether the distance between the second proximity sensor assembly 330 and the first proximity sensor assembly 320 is less than a predetermined value. A distance less than the predetermined value indicates that the battery is pressed beyond a predetermined level.

[0042] In the embodiments of the present application, "battery" may refer to a battery module composed of multiple battery cells connected in series, in parallel, or in a mixed manner, wherein the battery module may be, for example, a single-row module, a double-row module, or a multi-row module. The battery module has a total output positive electrode and a total output negative electrode. The total output positive electrode and the total output negative electrode of the battery module together constitute the power output of the battery module, which is used to connect to the positive and negative electrodes of an external circuit, so that electrical energy can flow from the battery module to the external circuit to provide the required power for other devices.

[0043] The battery testing mechanism includes two probes 100, which are used to contact and press against the common positive and common negative electrodes of the battery to be tested, respectively, to extract current from the battery. In some embodiments, the ends of the probes 100, made of conductive material, can be inserted into the common positive and common negative electrodes of the battery to achieve current transfer and discharge. In some embodiments, a control device for controlling the discharge process of the probes 100 can be provided. This control device may include, for example, a current regulator for adjusting the magnitude and stability of the current extracted from the battery, as well as a timer or counter for recording the discharge time and amount of electricity.

[0044] The battery testing mechanism also includes a motion mechanism 200. The probes 100 and the overvoltage detection device 300 are arranged on the motion mechanism 200 so that the probes 100 and the overvoltage detection device 300 can move up and down with the motion mechanism 200, thereby enabling the two probes 100 to electrically contact and press against the total positive and negative poles of the battery. In some embodiments, a frame 600, a screw 700, and a servo motor 800 can be provided to drive the motion mechanism 200 toward the battery to be tested. Referring to Figure 1, the frame 600 can be a structural frame used to support and fix the various components of the entire battery testing mechanism. The screw 700 can be a spiral metal rod, typically used in conjunction with a nut to convert rotational force into linear motion force through rotational motion. The servo motor 800 is used to provide power and can control the movement of the motion mechanism 200. The servo motor 800 can perform precise position and speed adjustment according to the control signal to achieve accurate control of the motion mechanism 200. It is typically composed of a DC motor or a stepper motor and is equipped with a feedback device such as an encoder to provide closed-loop control. It should be understood that the frame 600 , the lead screw 700 , and the servo motor 800 are shown for illustration purposes only and are not necessary for the purposes of the present disclosure.

[0045] The battery testing mechanism also includes an overpressure detection device 300. Following the movement of the motion mechanism 200, the overpressure detection device 300 contacts and presses against the battery. It provides a detection signal when it detects that the pressure on the battery exceeds a set safety level. This detection signal triggers a protective action to reduce the possibility of damage to the battery from excessive pressure.

[0046] In some embodiments, referring to FIG. 1 and FIG. 2 , the motion mechanism 200 includes a mounting plate 210 located at a lower portion of the motion mechanism 200 , and the overpressure prevention detection device 300 is disposed on the mounting plate 210 .

[0047] In certain embodiments, the overvoltage detection device 300 includes at least one guide rod 310 that runs through the mounting plate 210. With reference to Figure 2, the number of guide rods 310 can be two, i.e., a first guide rod 310a and a second guide rod 310b. In certain embodiments, the number of guide rods 310 can be one or more, without any restriction herein. The first end of the guide rod 310 can be used to press the battery when the motion mechanism 200 moves. In some cases, the end of the guide rod pressing the battery helps to fix the battery.

[0048] In some embodiments, a first proximity sensor assembly 320 is mounted on the mounting plate 210, and a second proximity sensor assembly 330 is connected to the guide rod 310. The first and second proximity sensor assemblies 320 and 330 can cooperate to detect whether the distance between them is less than a predetermined value, thereby indicating whether the battery under test is over-compressed. Specifically, the guide rod 310 moves with the mounting plate 210 in the motion mechanism 200. When the first end of the guide rod 310 contacts the battery under test, it continues to press against the battery. Because the guide rod 310 extends through the mounting plate, the pressed battery exerts a reaction force on the guide rod 310 opposite to the direction of motion of the motion mechanism 200, causing the guide rod 310 to move in the opposite direction. The second proximity sensor assembly 330, located on the guide rod 310, thus gradually approaches the first proximity sensor assembly 320 mounted on the mounting plate 210 until the distance between them is less than a predetermined value, generating a detection signal. This detection signal can trigger a protective action, thereby issuing an alarm or shutting down the battery testing mechanism. The predetermined value may be a predetermined parameter representing the maximum pressure the battery can withstand. Triggering a protective action indicates that the battery being tested is at risk of excessive pressure. In this case, an alarm may be issued for human intervention, or the battery testing mechanism may be shut down to reduce the probability of battery damage.

[0049] In some embodiments, the predetermined value may be set for different product parameters of the battery to be tested.

[0050] The battery testing mechanism with an anti-overpressure detection device according to the embodiment of the present application can provide safety protection for the battery to prevent the battery from being damaged by excessive pressure. The proximity sensor assembly provided on the battery testing mechanism can further improve the accuracy of the judgment of the degree of pressure applied to the battery, so that the battery testing mechanism of the present application can detect and respond to pressure changes more quickly and accurately, providing a more reliable overvoltage protection function. In addition, the predetermined degree of pressure applied to the battery can be adjusted according to actual needs. Appropriate safety thresholds can be set according to the size and characteristics of different types of batteries to meet the needs of different application scenarios.

[0051] According to some embodiments of the present application, at least one guide rod 310 each includes a second end opposite to the first end, the first end and the second end are respectively located on both sides of the mounting plate 210, the second proximity sensor assembly 330 is arranged at any end of any guide rod in the at least one guide rod 310, and the first proximity sensor assembly 320 is arranged corresponding to the second proximity sensor assembly 330.

[0052] In some embodiments, referring to FIG. 2 , the guide rod 310 has a first end and a second end located on both sides of the mounting plate 210 .

[0053] In some embodiments, the second proximity sensor assembly 330 can be disposed, for example, at a first end of the first guide rod 310a for pressing against the battery, or at a second end of the first guide rod 310a corresponding to the first end. The second proximity sensor assembly 330 can be disposed at any end of any guide rod 310, without limitation.

[0054] The first proximity sensor assembly 320 and the second proximity sensor assembly 330 are arranged correspondingly, meaning that the first proximity sensor assembly 320 is arranged adjacent to the second proximity sensor assembly 330 so that the second proximity sensor assembly 330 can sense each other as the guide rod moves. For example, in the embodiment shown in FIG2 , where the second proximity sensor assembly 330 is arranged at the second end of the first guide rod 310a, the first proximity sensor assembly 320 can be mounted on a sensor bracket and arranged adjacent to the second proximity sensor assembly 330, and the sensor bracket is arranged on the same side of the mounting plate 210 as the second end. As the motion mechanism 200 moves downward, the guide rod is pressed upward by the battery, and the second proximity sensor assembly 330 gradually approaches or contacts the first proximity sensor assembly 320, thereby generating an electrical signal and triggering a switch action. Upon detecting the corresponding signal or action, the battery testing mechanism will alarm or shut down to prevent the motion mechanism 200 from pressing down beyond the pressure that the battery can withstand or the maximum compression of the probe 100.

[0055] This arrangement of the sensor assembly increases the layout flexibility of the battery testing mechanism, so that the position of the sensor assembly can be adjusted according to actual needs.

[0056] According to some embodiments of the present application, a corresponding bearing 340 is sleeved between the second end of at least one guide rod 310 and the mounting plate 210 , and the bearing 340 is fixed on the mounting plate 210 .

[0057] In some embodiments, with continued reference to FIG. 2 , the first guide rod 310 a and the second guide rod 310 b are provided with bearings 340 between their respective second ends and the mounting plate 210 .

[0058] The bearing can provide support and guidance for the guide rod's linear motion, so that the guide rod can perform smooth linear motion on the predetermined track.

[0059] According to some embodiments of the present application, a corresponding first elastic component 350 is sleeved between the first end of at least one guide rod 310 and the mounting plate 210 .

[0060] In some embodiments, referring again to Figure 2 , first guide rod 310a and second guide rod 310b are further provided with a first elastic component 350 between their respective first ends and mounting plate 210. In some embodiments, one end of first elastic component 350 can be fixed to mounting plate 210. As motion mechanism 200 moves downward, guide rod 310 presses against the battery and then moves upward, squeezing first elastic component 350. This allows first elastic component 350 to quickly return guide rod 310 to its original position after testing is complete.

[0061] Providing an elastic component helps the guide rod to return to its original position.

[0062] According to some embodiments of the present application, the first elastic component 350 includes a spring.

[0063] A spring is provided between the first end portion of the guide rod and the mounting plate to facilitate the return of the guide rod.

[0064] According to some embodiments of the present application, the first proximity sensor assembly 320 includes a photoelectric sensor, and the second proximity sensor assembly 330 includes a sensing component; or the first proximity sensor assembly 320 includes a sensing component, and the second proximity sensor assembly 330 includes a photoelectric sensor.

[0065] In some embodiments, referring to FIG2 , the first proximity sensor assembly 320 may include a photosensor or sensing component, and the second proximity sensor assembly 330 may include a sensing component or photosensor corresponding to the first proximity sensor assembly 320. When the sensing component and photosensor approach or come into contact with each other, a detection signal is generated. This detection signal may trigger a protective action, such as issuing an alarm or shutting down the battery testing mechanism.

[0066] Photoelectric sensors and corresponding sensing components can provide battery testing institutions with more accurate detection capabilities.

[0067] According to some embodiments of the present application, the photoelectric sensor includes a light emitter and a light receiver facing each other, with a gap between the light emitter and the light receiver, and the sensing component includes a light barrier. The photoelectric sensor is configured to trigger a detection signal when the light barrier is in the gap, and the detection signal indicates that the distance between the photoelectric sensor and the sensing component is less than a predetermined value.

[0068] In some embodiments, a photosensor may include a light emitter and a light receiver. The light emitter is configured to emit light, such as infrared light or visible light. A gap is defined between the light emitter and the light receiver, allowing the light receiver to receive the light emitted by the light emitter without any obstruction between the two. When a sensing component (e.g., a light barrier) passes through the gap, the light is blocked and cannot be received by the light receiver, triggering a detection signal.

[0069] In some embodiments, referring to FIG2 , a light barrier is provided at the second end of the first guide rod 310a, and a photoelectric sensor including a light emitter and a light receiver is mounted on a sensor bracket and positioned adjacent to the light barrier. When the motion mechanism 200 moves downward, the probe 100 and the overpressure detection device 300 also move downward. The probe 100 contacts the total positive and negative poles of the battery and continues to press downward. After the pressure block 360 contacts the battery, the first guide rod 310a and the second guide rod 310b gradually move upward as the motion mechanism 200 moves downward. When the light barrier provided at the second end of the first guide rod 310a passes through the gap between the light emitter and the light receiver, a detection signal is triggered. This detection signal can indicate that the distance between the photoelectric sensor and the sensing component is less than a predetermined value and trigger a protective action, thereby preventing the motion mechanism 200 from pressing down beyond the pressure distance that the battery can withstand.

[0070] By providing a photosensor including a light emitter and a light receiver facing each other, a more accurate detection capability can be provided for a battery testing mechanism.

[0071] According to some embodiments of the present application, a first end portion of each of the at least one guide rod 310 is formed as a pressing block 360 having a boss shape for pressing the battery.

[0072] In some embodiments, referring to FIG. 2 , the first guide rod 310 a and the second guide rod 310 b are formed as pressing blocks 360 having a boss shape at respective first ends.

[0073] Forming the first end portion of the guide rod into a pressing block having a boss shape can increase the contact area between the overpressure detection device and the battery, thereby reducing damage to the battery during pressing.

[0074] According to some embodiments of the present application, the two probes 100 and the first end of at least one guide rod 310 are arranged on the same side of the mounting plate 210, and the battery testing mechanism also includes a pressure sensor 400 and a second elastic component 500. The pressure sensor 400 is arranged on the side of the mounting plate 210 where the two probes 100 are arranged, and the second elastic component 500 is arranged between the two probes 100 and the pressure sensor 400, so that the pressure sensor 400 can sense the pressure exerted on the two probes 100 via the second elastic component 500.

[0075] In some embodiments, referring to FIG3 , the battery testing mechanism further includes a pressure sensor 400 and a second elastic member 500 . The pressure sensor 400 and the probe 100 are located on the same side of the mounting plate 210 , with the second elastic member 500 disposed between the probe 100 and the pressure sensor 400 . As the motion mechanism 200 moves downward, the probe 100 also moves downward to electrically contact the battery's total positive and negative electrodes. When the probe 100 contacts the battery's total positive and negative electrodes and continues to press downward, the battery applies pressure to the pressure sensor 400 via the second elastic member 500 , enabling the pressure sensor 400 to sense the pressure applied to the probe 100 .

[0076] By arranging the pressure sensor and the elastic component, the pressure exerted on the probe when it is in electrical contact with the total positive electrode and the total negative electrode of the battery can be obtained.

[0077] According to some embodiments of the present application, the second elastic component 500 includes a spring.

[0078] In some embodiments, referring to FIG. 3 , the second elastic member 500 may be a spring.

[0079] A spring is provided between the probe and the pressure sensor so that the pressure to which the probe is subjected when it is in electrical contact with the total positive electrode and the total negative electrode of the battery can be obtained.

[0080] According to some embodiments of the present application, the movement mechanism 200 is configured to be movable in a first direction and a second direction perpendicular to the first direction to adjust the distance between the movement mechanism 200 and the battery.

[0081] In some embodiments, the "first direction" may refer to a direction extending parallel to the mounting plate 210, and the "second direction" may refer to a direction extending parallel to the guide rod 310. In some embodiments, the "first direction" may refer to a direction extending parallel to the guide rod 310, and the "second direction" may refer to a direction extending parallel to the mounting plate 210. Other mutually perpendicular directions may be set as needed for actual battery testing, and this is not a limitation.

[0082] This setting of the motion mechanism can increase the flexibility and adaptability of the battery testing mechanism.

[0083] According to some embodiments of the present application, the two probes 100 have multiple installation positions on the motion mechanism 200 so that the position between the two probes 100 is adjustable.

[0084] In some embodiments, the motion mechanism 200 may have multiple mounting locations for mounting two probes 100. These mounting locations may be provided, for example, on mounting plates at different heights or at different locations on the same mounting plate. It should be understood that it is also possible to provide mounting locations on other parts of the battery testing mechanism, and this is not intended to be limiting.

[0085] In some embodiments, the motion mechanism 200 may further include a sliding groove as an installation position for the two probes 100 , for slidingly adjusting the distance between the two probes 100 .

[0086] Probes are arranged at multiple mounting positions on the motion mechanism to be compatible with batteries of different sizes.

[0087] The embodiment of the present application also provides a battery testing method, which is applied to a battery testing mechanism. The battery testing mechanism includes two probes 100, which are configured to electrically contact the total positive and total negative poles of the battery to be tested; a motion mechanism 200, on which the two probes 100 are disposed, and the motion mechanism 200 is configured to be able to move toward the battery so that the two probes 100 are electrically contacted with the total positive and total negative poles of the battery; and an anti-overvoltage detection device 300, which is disposed on the motion mechanism 200 and is configured to press against the battery while the two probes 100 are electrically contacted with the total positive and total negative poles of the battery. The motion mechanism 200 includes a mounting plate 210, on which a first proximity sensor assembly 320 is mounted, and the anti-overvoltage detection device 300 includes at least one guide rod 310 and a second proximity sensor assembly 330. The at least one guide rod 310 is configured to pass through the mounting plate 210, and its first end is used to press against the battery. The second proximity sensor assembly 330 is fixedly connected to at least one guide rod 310, and the second proximity sensor assembly 330 cooperates with the first proximity sensor assembly 320 to detect whether the distance between the second proximity sensor assembly 330 and the first proximity sensor assembly 320 is less than a predetermined value. Wherein, a distance less than the predetermined value indicates that the battery is pressed beyond a predetermined degree. The battery testing method includes: controlling the motion mechanism 200 to move toward the battery to be tested so that the two probes 100 are electrically contacted with the total positive pole and the total negative pole of the battery respectively; receiving a detection signal from the overvoltage detection device 300, the detection signal indicating that the battery is pressed beyond a predetermined degree by the overvoltage detection device 300, and the detection signal is generated in response to the distance between the second proximity sensor assembly 330 and the first proximity sensor assembly 320 being less than a predetermined value; and triggering a protection action in response to receiving the detection signal.

[0088] By configuring the motion mechanism to include a proximity sensor assembly, the accuracy of determining the degree of pressure applied to the battery can be further improved, thereby providing a more reliable overvoltage protection function.

[0089] According to some embodiments of the present application, the protection action includes at least one of the following: the battery testing mechanism issues an alarm; or the battery testing mechanism shuts down.

[0090] Further setting protection actions can better protect the battery to be tested.

[0091] Since this method is applied to the battery testing mechanism in the above embodiment, this method has the technical effects of the above battery testing mechanism, and will not be described in detail here.

[0092] The embodiment of the present application also provides a battery testing device, which is applied to a battery testing mechanism. The battery testing mechanism includes two probes 100, which are configured to electrically contact the total positive and total negative poles of the battery to be tested; a motion mechanism 200, on which the two probes 100 are disposed, and the motion mechanism 200 is configured to be able to move toward the battery so that the two probes 100 are electrically contacted with the total positive and total negative poles of the battery; and an anti-overvoltage detection device 300, which is disposed on the motion mechanism 200 and is configured to press against the battery while the two probes 100 are electrically contacted with the total positive and total negative poles of the battery. The motion mechanism 200 includes a mounting plate 210, on which a first proximity sensor assembly 320 is mounted, and the anti-overvoltage detection device 300 includes at least one guide rod 310 and a second proximity sensor assembly 330. The at least one guide rod 310 is configured to pass through the mounting plate 210, and its first end is used to press against the battery. The second proximity sensor assembly 330 is fixedly connected to at least one guide rod 310, and cooperates with the first proximity sensor assembly 320 to detect whether the distance between the second proximity sensor assembly 330 and the first proximity sensor assembly 320 is less than a predetermined value. Wherein, a distance less than the predetermined value indicates that the battery is pressed beyond a predetermined degree. The battery testing device includes: a first module for controlling the movement mechanism 200 to move toward the battery to be tested so that the two probes 100 are electrically contacted with the total positive and total negative poles of the battery respectively; a second module for receiving a detection signal from the overpressure detection device 300, the detection signal indicating that the battery is pressed beyond a predetermined degree by the overpressure detection device 300, and the detection signal is generated in response to the distance between the second proximity sensor assembly 330 and the first proximity sensor assembly 320 being less than a predetermined value; and a third module for triggering a protection action in response to receiving the detection signal.

[0093] The battery testing mechanism of the present application will be further described below in conjunction with specific embodiments.

[0094] 1-3 , the battery testing mechanism includes two probes 100 , a motion mechanism 200 and an overvoltage detection device 300 . The motion mechanism 200 includes a mounting plate 210 , on which the two probes 100 and the overvoltage detection device 300 are disposed.

[0095] The overvoltage detection device 300 includes a first guide rod 310a and a second guide rod 310b extending through the mounting plate 210, each having a first end and a second end facing each other. The first ends of the first and second guide rods 310a and 310b are formed into boss-shaped pressure blocks 360 for applying pressure to the battery. A second proximity sensor assembly 330 is provided at the second end of the first guide rod 310a. The first proximity sensor assembly 320 is mounted on the sensor bracket and positioned adjacent to the second proximity sensor assembly 330. A bearing 340 is provided between the second ends of the first and second guide rods 310a and 310b and the mounting plate 210, and a spring is provided between the first ends of the first and second guide rods 310a and the mounting plate 210.

[0096] The battery testing mechanism further includes a pressure sensor 400 disposed on the same side as the probe 100 and a spring disposed between the probe 100 and the pressure sensor 400 .

[0097] When the motion mechanism 200 moves downward, the probe 100 and the anti-overpressure detection device 300 also move downward. When the probe 100 contacts the total positive and negative poles of the battery and continues to press down, the spring arranged between the probe 100 and the pressure sensor 400 applies pressure to the pressure sensor 400 so that it senses the pressure exerted on the probe 100. After the pressure block 360 contacts the battery, the first guide rod 310a and the second guide rod 310b will gradually move upward as the motion mechanism 200 moves downward. When the second proximity sensor assembly 330 arranged at the second end of the first guide rod 310a approaches or contacts the first proximity sensor assembly 320, an electrical signal will be generated and a switch action will be triggered. After detecting the corresponding signal or action, the battery testing mechanism will alarm or shut down to prevent the downward pressing distance of the motion mechanism 200 from exceeding the pressure distance that the battery can withstand or the maximum compression of the probe 100.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery testing mechanism, comprising: Two probes (100) are configured to electrically contact the total positive electrode and the total negative electrode of the battery to be tested, respectively; a motion mechanism (200), the two probes (100) being arranged on the motion mechanism (200), the motion mechanism (200) being configured to be movable toward the battery so that the two probes (100) are in electrical contact with the total positive electrode and the total negative electrode of the battery, respectively; as well as An overpressure prevention detection device (300) is provided on the motion mechanism (200) and is configured to press the battery while the two probes (100) are in electrical contact with the total positive electrode and the total negative electrode of the battery, and detect whether the battery is pressed beyond a predetermined level. The motion mechanism (200) includes a mounting plate (210), a first proximity sensor assembly (320) is mounted on the mounting plate (210), and the overpressure prevention detection device (300) includes: at least one guide rod (310) configured to penetrate the mounting plate (210), wherein a first end portion of the at least one guide rod (310) is used to press against the battery; and A second proximity sensor assembly (330) is fixedly connected to the at least one guide rod (310), and the second proximity sensor assembly (330) cooperates with the first proximity sensor assembly (320) to detect whether the distance between the second proximity sensor assembly (330) and the first proximity sensor assembly (320) is less than a predetermined value, wherein the distance being less than the predetermined value indicates that the battery is pressed beyond a predetermined degree.

2. The battery testing mechanism according to claim 1, wherein: The at least one guide rod (310) each includes a second end portion opposite to the first end portion, the first end portion and the second end portion are respectively located on both sides of the mounting plate (210), the second proximity sensor assembly (330) is arranged at any end portion of any guide rod among the at least one guide rod (310), and the first proximity sensor assembly (320) and the second proximity sensor assembly (330) are arranged correspondingly.

3. The battery testing mechanism according to claim 2, wherein: A corresponding bearing (340) is sleeved between the second end portion of the at least one guide rod (310) and the mounting plate (210), and the bearing (340) is fixed on the mounting plate (210).

4. The battery testing mechanism according to any one of claims 1 to 3, wherein: A corresponding first elastic component (350) is sleeved between the first end portion of the at least one guide rod (310) and the mounting plate (210).

5. The battery testing mechanism according to claim 4, wherein: The first elastic component (350) includes a spring.

6. The battery testing mechanism according to any one of claims 1 to 5, wherein: The first proximity sensor component (320) includes a photoelectric sensor, and the second proximity sensor component (330) includes a sensing component; or The first proximity sensor assembly (320) includes a sensing component, and the second proximity sensor assembly (330) includes a photoelectric sensor.

7. The battery testing mechanism according to claim 6, wherein: The photosensor includes a light emitter and a light receiver facing each other with a gap between the light emitter and the light receiver, and the sensing component includes a light barrier. The photosensor is configured to trigger a detection signal when the light barrier is in the gap, and the detection signal indicates that the distance between the photosensor and the sensing component is less than a predetermined value.

8. The battery testing mechanism according to any one of claims 1 to 7, wherein: The first end portion of each guide rod of the at least one guide rod (310) is formed into a pressing block (360) having a boss shape, for pressing the battery.

9. The battery testing mechanism according to any one of claims 1 to 8, wherein: The two probes (100) and the first end portion of the at least one guide rod (310) are arranged on the same side of the mounting plate (210), and the battery testing mechanism further comprises a pressure sensor (400) and a second elastic component (500), wherein the pressure sensor (400) is arranged on the side of the mounting plate (210) where the two probes (100) are arranged, and the second elastic component (500) is arranged between the two probes (100) and the pressure sensor (400), so that the pressure sensor (400) can sense the pressure exerted on the two probes (100) via the second elastic component (500).

10. The battery testing mechanism according to claim 9, wherein: The second elastic component (500) includes a spring.

11. The battery testing mechanism according to any one of claims 1 to 10, wherein: The movement mechanism (200) is configured to be movable in a first direction and a second direction perpendicular to the first direction to adjust the distance between the movement mechanism and the battery.

12. The battery testing mechanism according to any one of claims 1 to 11, wherein: The two probes (100) have multiple installation positions on the motion mechanism (200), so that the position between the two probes (100) is adjustable.

13. A battery testing method, applied to a battery testing mechanism, the battery testing mechanism comprising: Two probes (100) are configured to electrically contact the total positive electrode and the total negative electrode of the battery to be tested, respectively; a motion mechanism (200), the two probes (100) being arranged on the motion mechanism (200), the motion mechanism (200) being configured to be movable toward the battery so that the two probes (100) are in electrical contact with the total positive electrode and the total negative electrode of the battery, respectively; and an overpressure detection device (300) disposed on the motion mechanism (200) and configured to press the battery during the period when the two probes (100) are in electrical contact with the total positive electrode and the total negative electrode of the battery, respectively. The motion mechanism (200) includes a mounting plate (210) on which a first proximity sensor assembly (320) is mounted. The overpressure detection device (300) includes: at least one guide rod (310) configured to pass through the mounting plate (210), a first end portion of the at least one guide rod (310) being used to press the battery; and a second proximity sensor assembly (330) fixedly connected to the at least one guide rod (310), the second proximity sensor assembly (330) cooperating with the first proximity sensor assembly (320) to detect whether the distance between the second proximity sensor assembly (330) and the first proximity sensor assembly (320) is less than a predetermined value, wherein the distance being less than the predetermined value indicates that the battery is pressed beyond a predetermined degree. The method includes: Controlling the motion mechanism (200) to move toward the battery to be tested so that the two probes (100) are in electrical contact with the total positive electrode and the total negative electrode of the battery respectively; receiving a detection signal from an overpressure prevention detection device (300), the detection signal indicating that the battery is pressed by the overpressure prevention detection device (300) to exceed a predetermined degree, and the detection signal is generated in response to the distance between the second proximity sensor component (330) and the first proximity sensor component (320) being less than a predetermined value; and In response to receiving the detection signal, a protection action is triggered.

14. The method according to claim 13, wherein The protection action includes at least one of the following: The battery testing mechanism issues an alarm; or The battery testing mechanism is shut down.

15. A battery testing device, applied to a battery testing mechanism, the battery testing mechanism comprising: Two probes (100) are configured to electrically contact the total positive electrode and the total negative electrode of the battery to be tested, respectively; a motion mechanism (200), the two probes (100) being arranged on the motion mechanism (200), the motion mechanism (200) being configured to be movable toward the battery so that the two probes (100) are in electrical contact with the total positive electrode and the total negative electrode of the battery, respectively; and an overpressure detection device (300) disposed on the motion mechanism (200) and configured to press the battery during the period when the two probes (100) are in electrical contact with the total positive electrode and the total negative electrode of the battery, respectively. The motion mechanism (200) includes a mounting plate (210) on which a first proximity sensor assembly (320) is mounted. The overpressure detection device (300) includes: at least one guide rod (310) configured to pass through the mounting plate (210), a first end portion of the at least one guide rod (310) being used to press the battery; and a second proximity sensor assembly (330) fixedly connected to the at least one guide rod (310), the second proximity sensor assembly (330) cooperating with the first proximity sensor assembly (320) to detect whether the distance between the second proximity sensor assembly (330) and the first proximity sensor assembly (320) is less than a predetermined value, wherein the distance being less than the predetermined value indicates that the battery is pressed beyond a predetermined degree. The battery testing device includes: A first module is used to control the movement mechanism (200) to move toward the battery to be tested so that the two probes (100) are in electrical contact with the total positive electrode and the total negative electrode of the battery respectively; a second module for receiving a detection signal from the overpressure prevention detection device (300), the detection signal indicating that the battery is pressed by the overpressure prevention detection device (300) to exceed a predetermined degree, and the detection signal is generated in response to the distance between the second proximity sensor component (330) and the first proximity sensor component (320) being less than a predetermined value; and The third module is configured to trigger a protection action in response to receiving the detection signal.

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