An automatic detection mechanism for thermal battery stack insulation

Abstract

A kind of hot battery stack insulation automatic detection mechanism, comprising: fastening tool, synchronous probe moving mechanism, asynchronous insulation detection probe moving mechanism, device automatic control module, data analysis module.Its maximum feature is to identify the heating layer position of hot battery stack by the change of current when synchronous probe moves synchronously on both sides of stack, then insulation probe tests the insulation between adjacent heating pieces, to realize the automatic insulation detection of hot battery stack.While realizing the automatic detection of hot battery stack, the relative position of heating layer can be further used to judge the assembly sequence of hot battery monomer battery, to realize the data inspection of hot battery assembly process.

Description

Technical Field

[0001] This invention relates to an automatic insulation detection mechanism for thermal battery stacks, belonging to the field of automation instruments and devices. Background Technology

[0002] As a primary storage battery, the core component for the electrical performance output of a thermal battery is the stack. The stack is constructed by stacking and securing a certain number of thermal battery cells, asbestos pads, graphite pads, current collectors, etc., in sequence according to design requirements, and outputs electrical energy through current-carrying strips. The insulation between adjacent cells is a key factor in the stack's electrical performance output. A single thermal battery cell consists of four parts: a heating layer, a positive electrode layer, a separator layer, and a negative electrode layer. The insulation between adjacent cells is obtained by testing the insulation between adjacent heating layers.

[0003] Based on currently available information, the reported insulation testing methods for thermal battery stacks are still manual. This manual method involves placing test probes sequentially on the heating layer, with the location of the heating layer and the insulation test results relying on human judgment. The shortcomings of manual insulation testing include: the location of the heating elements depends on manual judgment; the location of the heating layer cannot be recorded, making it impossible to achieve data-driven verification of the stack assembly sequence; prolonged manual testing may result in missed individual cells, leading to incomplete test results; and the insulation test results rely on manual interpretation, making it impossible to save the insulation data between adjacent cells. Summary of the Invention

[0004] The technical problem solved by this invention is to overcome the shortcomings of the prior art and propose an automatic insulation detection mechanism for thermal battery stacks. By determining the position of the thermal battery heating layer, it realizes automated insulation detection of thermal battery stacks and data-driven inspection of the thermal battery assembly process.

[0005] The technical solution of this invention is:

[0006] An automatic insulation detection mechanism for a thermal battery stack includes a fastening fixture, a synchronous probe moving mechanism, an insulation detection probe moving mechanism, and a data analysis module. The fastening fixture is used to fix the stack. The synchronous probe moving mechanism controls two synchronous probes to be positioned on opposite sides of the stack and to move vertically synchronously, collecting the current value and position of the two synchronous probes in real time, and feeding the current value and position of the synchronous probes back to the data analysis module. The data analysis module determines the position of the heating layer of the stack based on the current value and the position of the synchronous probes. Based on the position of the heating layer, the insulation detection probe moving mechanism controls the detection probes to detect the stack.

[0007] The detection probes include two probes. When the detection probes detect the fuel cell stack, the two detection probes are vertically spaced at the positions of two adjacent heating layers.

[0008] The detection probe has a vertical distance range of 0 to 3 mm.

[0009] The fastening fixture is made of insulating material to ensure that the parts of the fastening fixture located on both sides of the fuel cell stack are mutually insulated.

[0010] The synchronization probe adopts a floating clamping design. When the probe moves up and down, it will automatically extend and retract according to the unevenness of the fuel cell stack surface, so as to achieve a tight fit between the probe and the fuel cell stack, while the probe will not damage the fuel cell stack individual units.

[0011] It also includes an automatic control module, which uses a PLC control system to realize the synchronous movement of the synchronous probe and the movement of the detection probe between two adjacent heating layers.

[0012] The fastening fixture includes a base and two sliding blocks slidably connected to the surface of the base, with two clamping rods connected to the top of each sliding block.

[0013] The upper surface of the base is provided with a T-shaped groove, the bottom of the sliding block is located in the T-shaped groove and is adapted to the T-shaped groove, and a fixing nut is threaded onto the sliding block.

[0014] Two sets of synchronous probe moving mechanisms are provided, with each set located on both sides of the fuel cell stack. Each set of synchronous probe moving mechanisms includes a vertical moving device, a synchronous motor, and synchronous probes. The synchronous motor drives the two synchronous probes to move vertically up and down synchronously through the vertical moving device.

[0015] Two insulation detection probe mechanisms are provided, which are located on opposite sides of the fuel cell stack. Each insulation detection probe mechanism includes a vertical moving device, a drive motor, and a detection probe. The drive motor drives the detection probe to move vertically up and down through the vertical moving device.

[0016] The position of the heating layer in the thermal battery stack is identified by the change in current as two synchronous probes move across both sides of the stack. Then, an insulating probe moves to the positions of two adjacent heating elements to test the insulation between them, achieving automatic insulation detection of the thermal battery stack. Simultaneously, the data analysis module can further determine the assembly sequence of individual thermal battery cells based on the relative positions of the heating layers, enabling data-driven verification of the thermal battery assembly process.

[0017] In summary, this application includes at least the following beneficial technical effects:

[0018] The beneficial effects of this invention compared to the prior art are:

[0019] 1) This invention determines the position of the heating layer of the battery stack by synchronous probe current change and then performs automatic insulation detection, thus realizing automatic insulation detection of the thermal battery stack.

[0020] 2) This invention determines the position of the heating layer of the battery stack by synchronous probe current change, and compares the position of the heating layer with the theoretical position of the heating layer, thus realizing the data-driven inspection of the assembly of the thermal battery stack.

[0021] 3) This invention detects the insulation of the thermal battery stack using an insulation detection probe, realizing electronic acquisition of the insulation performance of the thermal battery stack and changing the previous paper-based recording method. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention.

[0023] Explanation of reference numerals in the attached drawings: 1. Fastening fixture; 2. Synchronous probe moving mechanism; 3. Insulation detection probe moving mechanism; 6. Battery stack. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0025] This application discloses an automatic insulation detection mechanism for thermal battery stacks, such as... Figure 1 As shown, it includes: fastening fixture 1, synchronous probe moving mechanism 2, insulating probe moving mechanism, automatic control module, and data analysis module.

[0026] The electrode stack 6 is placed on the fastening fixture 1, which is used to fasten and position the electrode stack 6, ensuring that it does not move during the insulation test. Specifically, the fastening fixture 1 includes a base and two sliding blocks slidably connected to the surface of the base. Each sliding block has two clamping rods connected to its top. The sliding blocks and clamping rods are made of insulating material and are located on both sides of the electrode stack 6, with the sliding blocks insulated from each other. The electrode stack 6 is placed on the base, positioned between the two sliding blocks. Then, by sliding the two sliding blocks, the sliding blocks drive the clamping rods to move until the clamping rods lock the electrode stack 6, fixing the sliding blocks to the base and thus securing the electrode stack 6. At the same time, each sliding block is clamped by two separate clamping rods, allowing the portion of the electrode stack 6 between the clamping rods to be tested.

[0027] In this embodiment, a T-shaped groove is provided on the upper surface of the base. The bottom of the sliding block is located in the T-shaped groove and is adapted to the T-shaped groove. A fixing nut is threaded onto the sliding block. Tighten the fixing nut until the end of the fixing nut abuts against the upper surface of the base. At this time, the sliding block and the base are relatively fixed.

[0028] The synchronous probe moving mechanism 2 uses two synchronous motors to control the synchronous movement of two synchronous probes on the fuel cell stack 6, with a synchronous movement accuracy of 0.01mm. The insulated synchronous probes adopt a flexible floating clamping design. When the probes move up and down, they automatically extend and retract according to the unevenness of the surface of the fuel cell stack 6, achieving a tight fit between the synchronous probes and the fuel cell stack 6. At the same time, the synchronous probes will not damage the individual fuel cell stack 6 units. The two synchronous probes are respectively connected to the positive and negative terminals of an ammeter, and the current value between the two synchronous probes is collected in real time during the movement.

[0029] Two synchronous probes move synchronously on both sides of fuel cell stack 6, providing real-time feedback on their positions and the current value between them. The synchronous movement speed of the probes is controlled by a synchronous motor, and the real-time position of the probes is obtained from the synchronous motor pulse feedback and fed back to the data analysis module. An ammeter is connected between the two probes, and the magnitude of the current between them is fed back to the data analysis module in real time.

[0030] Specifically, two sets of synchronous probe moving mechanisms 2 are provided, each set being located on both sides of the fuel cell stack 6. Each set of synchronous probe moving mechanisms 2 includes a vertical moving device, a synchronous motor, and a synchronous probe. The synchronous motor drives the synchronous probe to move vertically up and down through the vertical moving device. The vertical moving device can be any structure capable of vertical movement. For example, the vertical moving device includes a support column, a connecting part, and a lead screw. The connecting part is vertically slidably connected to the support part, the lead screw is rotatably connected to the support column, and the lead screw is threadedly connected to the support part. The synchronous motor is used to drive the lead screw to rotate, and the synchronous probe is connected to the connecting part.

[0031] The insulation detection probe mechanism is used to detect the insulation between two adjacent heating elements. Specifically, two insulation detection probe mechanisms are provided, located on opposite sides of the fuel cell stack 6. Each insulation detection probe mechanism includes a vertical moving device, a drive motor, and a detection probe. The drive motor drives the detection probe to move vertically up and down via the vertical moving device. The vertical moving device can be any structure capable of vertical movement, and its structure can be the same as that of the vertical moving device of the synchronous probe moving mechanism 2.

[0032] The two detection probes are positioned vertically at the locations of two adjacent heating layers, with a vertical distance ranging from 0 to 3 mm. The insulation detection probes are then moved to the positions of the two heating layers by two separate drive motors, and the insulation performance of the two adjacent heating layers is tested. The insulation test data is simultaneously transmitted to the data analysis module.

[0033] The automatic control module of the device uses a PLC control system to realize the synchronous movement of the synchronous probe and the rotation, vertical and horizontal movement of the detection probe, as well as the movement of the detection probe between two adjacent heating layers. The probe movement distance is given by the data analysis module.

[0034] The data analysis module determines the location of the heating layer based on the current and position information fed back by the synchronous detection probe. Since the heating layer is a conductor, its current suddenly increases when the synchronous probe moves to it, thus identifying the heating layer's location. This information is then fed back to the motion control module, which controls the insulation detection probe to perform insulation testing on fuel cell stack 6. Simultaneously, based on the heating layer's location, the assembly sequence of the fuel cell stack 6 is deduced, enabling data-driven verification of the thermal battery assembly process. The data analysis module judges the insulation test values ​​fed back by the detection probe, marking values ​​below a set threshold. Finally, the data analysis module outputs the assembly sequence of fuel cell stack 6 and the insulation test results.

[0035] The contents not described in detail in this specification are common knowledge to those skilled in the art.

[0036] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims of the present invention.

Claims

1. An automatic insulation detection mechanism for thermal battery stacks, characterized in that: Includes fastening fixture (1), synchronous probe moving mechanism (2), insulation detection probe moving mechanism (3), and data analysis module; The fastening fixture (1) is used to fix the fuel cell stack (6); The synchronous probe moving mechanism (2) is used to control the two synchronous probes to be located on opposite sides of the stack (6), and to control the two synchronous probes to move vertically in sync. It collects the current value and position of the two synchronous probes in real time, and feeds the current value and position of the synchronous probes back to the data analysis module. The data analysis module determines the position of the heating layer of the fuel cell stack (6) based on the current value and the position of the synchronization probe; According to the position of the heating layer, the insulation detection probe moving mechanism (3) controls the detection probe to detect the fuel cell stack (6); The detection probes include two probes. When the detection probes detect the fuel cell stack (6), the vertical distance between the two detection probes is the position of two adjacent heating layers. The vertical distance between the detection probes ranges from 0 to 3 mm. The detection probes are moved to the positions of two heating layers respectively under the action of two drive motors. Then the insulation of the two adjacent heating layers is tested. The insulation test data is simultaneously transmitted to the data analysis module.

2. The automatic insulation detection mechanism for a thermal battery stack according to claim 1, characterized in that: The fastening fixture (1) is made of insulating material so that the parts of the fastening fixture located on both sides of the stack (6) are mutually insulated.

3. The automatic insulation detection mechanism for a thermal battery stack according to claim 1, characterized in that: The synchronous probe adopts a floating clamping design. When the probe moves up and down, it will automatically extend and retract according to the unevenness of the surface of the fuel cell stack (6) to achieve a tight fit between the probe and the fuel cell stack (6) without damaging the fuel cell stack (6) unit.

4. The automatic insulation detection mechanism for a thermal battery stack according to claim 1, characterized in that: It also includes an automatic control module, which uses a PLC control system to realize the synchronous movement of the synchronous probe and the movement of the detection probe between two adjacent heating layers.

5. The automatic insulation detection mechanism for a thermal battery stack according to claim 1, characterized in that: The fastening fixture (1) includes a base and two sliding blocks slidably connected to the surface of the base, with two clamping rods connected to the top of each sliding block.

6. The automatic insulation detection mechanism for a thermal battery stack according to claim 5, characterized in that: The upper surface of the base is provided with a T-shaped groove, the bottom of the sliding block is located in the T-shaped groove and is adapted to the T-shaped groove, and a fixing nut is threaded onto the sliding block.

7. The automatic insulation detection mechanism for a thermal battery stack according to claim 1, characterized in that: Two sets of synchronous probe moving mechanisms (2) are provided, and each set of synchronous probe moving mechanisms (2) is located on both sides of the fuel cell stack (6). Each set of synchronous probe moving mechanisms (2) includes a vertical moving device, a synchronous motor, and a synchronous probe. The synchronous motor drives the two synchronous probes to move vertically up and down synchronously through the vertical moving device.

8. The automatic insulation detection mechanism for a thermal battery stack according to claim 1, characterized in that: Two insulation detection probe moving mechanisms are provided, and the two insulation detection probe moving mechanisms are respectively located on opposite sides of the fuel cell stack (6). Each insulation detection probe moving mechanism includes a vertical moving device, a drive motor, and a detection probe. The drive motor drives the detection probe to move vertically up and down through the vertical moving device.

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