Fire exit door and formation and capacity grading equipment

Abstract

The utility model discloses a fire exit door and formation and capacity grading equipment. According to the fire exit door, the connecting elements are additionally arranged, so that the connecting wires of all the sensors are connected to the connecting elements in a centralized mode, and therefore when the fire exit door is installed in the formation and capacity grading equipment, electric connection can be directly achieved through the connecting elements and target devices in the formation and capacity grading equipment; therefore, the connecting lines of the sensors are connected to the target device of the formation and capacity grading equipment, such as a power supply device, and an operator does not need to connect the plurality of connecting lines of the sensors on the fire exit door to the target device of the formation and capacity grading equipment one by one. The wiring time between the sensor on the fire exit door and the target device of the formation and capacity grading equipment is greatly shortened, and the overall assembly efficiency of the formation and capacity grading equipment is improved.

Description

Technical Field

[0001] This application relates to a chemical composition and capacity technology, and includes, but is not limited to, a fire door and a chemical composition and capacity device. Background Technology

[0002] In the rapidly developing new energy industry, lithium batteries, as key energy storage components, are facing increasingly prominent safety issues in their production lines, especially in the later stages of the process. The later stages of a lithium battery production line include critical processes such as formation and capacity testing. During these processes, the batteries are activated and charged. Due to the complexity and uncertainty of the chemical substances within the batteries, they are highly susceptible to spontaneous combustion for various reasons, leading to fire accidents. Therefore, fire doors are typically installed on the formation and capacity testing equipment to prevent the spread of fire. A series of fire-related detection sensors are also installed on these doors, such as those detecting the operating status of various components within the equipment to assess the risk of fire or the distance between the equipment and personnel. However, installing the fire doors within the equipment requires sequentially connecting the wiring of these sensors to the target devices, including power supply or control devices. This process is time-consuming and hinders the efficiency of the formation and capacity testing process. Utility Model Content

[0003] In view of this, the fire door and the formation and capacity preparation equipment provided in the embodiments of this application can reduce the wiring time of the sensors on the fire door and improve the execution efficiency of the formation and capacity preparation process.

[0004] In a first aspect, an embodiment of this application provides a fire door for a chemical composition and capacity testing device, comprising:

[0005] Door body;

[0006] Several sensors are distributed and arranged on the door body;

[0007] The connecting element includes a first connecting end and a second connecting end. The first connecting end is electrically connected to each of the plurality of sensors, and the second connecting end is connected to the target device of the formation and capacity device.

[0008] In one embodiment, the sensor includes a plurality of connecting wires, and the first connecting end includes a plurality of wiring ports, with different wiring ports used to connect different connecting wires.

[0009] In one embodiment, the distribution of the plurality of wiring ports on the connecting element is divided into several regions, and the wiring ports in different regions are connected to different sensors.

[0010] In one embodiment, the target device includes a controller, the second connection terminal includes a communication interface, the communication interface is electrically connected to the controller of the formation and capacity testing device, and the communication interface is also connected to the first connection terminal.

[0011] In one embodiment, the fire door includes a network transmission device connected to the communication interface to output the detection signals of the plurality of sensors via wireless communication.

[0012] In one embodiment, the plurality of wiring ports include a power supply port, and each sensor includes a power connection line, the power supply port being connected to the power connection line of each sensor.

[0013] In one embodiment, the target device includes a power supply device, and the second connection terminal includes a power connection terminal, which is connected to the power supply device of the formation and capacity testing device.

[0014] In one embodiment, the connecting element is a terminal block.

[0015] In one embodiment, the connecting element is a combination quick connector.

[0016] Secondly, embodiments of this application provide a chemical composition and capacity testing device, including the fire door described in the first aspect.

[0017] In the aforementioned fire door, by additionally setting up connecting elements, the connection lines of all sensors are centrally connected to the connecting elements. Thus, when the fire door is installed into the formation and capacity testing equipment, it can be directly electrically connected to the target device inside the formation and capacity testing equipment through the connecting elements. This is equivalent to connecting the connection lines of all sensors to the target device of the formation and capacity testing equipment, such as the power supply device, instead of requiring operators to connect the multiple connection lines of each sensor to the target device of the formation and capacity testing equipment one by one. This significantly reduces the wiring time between the sensors on the fire door and the target device of the formation and capacity testing equipment, and improves the overall assembly efficiency of the formation and capacity testing equipment. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the technical solutions of this application.

[0019] Figure 1 This is one of the structural schematic diagrams of a fire door provided in the embodiments of this application;

[0020] Figure 2 This is one of the structural schematic diagrams of the connecting element provided in the embodiments of this application;

[0021] Figure 3 This is a second schematic diagram of the structure of the connecting element provided in the embodiments of this application;

[0022] Figure 4 This is one of the structural schematic diagrams illustrating the connection relationship between the connecting element and the sensor provided in the embodiments of this application;

[0023] Figure 5 This is the second schematic diagram illustrating the connection relationship between the connecting element and the sensor provided in the embodiments of this application.

[0024] Figure 6 This is the third schematic diagram of the structure of the connecting element provided in the embodiments of this application;

[0025] Figure 7 This is the fourth schematic diagram of the structure of the connecting element provided in the embodiments of this application;

[0026] Figure 8 This is the second structural schematic diagram of a fire door provided in the embodiments of this application;

[0027] Figure 9 Fifth schematic diagram of the structure of the connecting element provided in the embodiments of this application;

[0028] Figure 10 This is the sixth schematic diagram of the connecting element provided in the embodiments of this application. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0031] In the following description, references are made to “some embodiments,” which describe a subset of all possible embodiments. However, it is understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0032] It should be noted that the terms "first, second, third" used in the embodiments of this application are used to distinguish similar or different objects and do not represent a specific order of objects. It can be understood that "first, second, third" can be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0033] When performing the formation and capacity testing process on battery packs, the battery packs are energized during the process, which can easily lead to fire accidents if not handled carefully. Therefore, fire doors are usually installed on the formation and capacity testing equipment to prevent the spread of fire. A series of sensors are installed on the fire doors to detect the working status of the devices that handle the battery packs, such as stacker cranes, and the distance between them and the personnel. However, installing the fire doors inside the formation and capacity testing equipment requires connecting the wiring of these sensors to the equipment one by one, which takes a lot of time and is not conducive to improving the efficiency of the formation and capacity testing process.

[0034] In view of this, this application discloses a fire door that, by additionally setting a connecting element, connects the connecting element to at least two connecting wires of several sensors. Thus, when connecting several sensors on the fire door to a formation and compatibility device, it is not necessary to connect at least two connecting wires of several sensors sequentially; it is only necessary to connect the connecting element to the formation and compatibility device. This significantly reduces the wiring time of the sensors on the fire door and improves the execution efficiency of the formation and compatibility process.

[0035] The following will be described in detail with reference to the accompanying drawings.

[0036] Figure 1 This is a structural schematic diagram of a fire door for a chemical composition and dispensing device, provided as an embodiment of this application. Figure 1 As shown, the fire door may include:

[0037] Door 1;

[0038] Several sensors 3 are distributed and installed on the door body 1;

[0039] The connecting element 2 includes a first connecting end 21 and a second connecting end 22. The first connecting end 21 is connected to each of the plurality of sensors 3 via connecting lines. The second connecting end 22 is connected to the target device of the formation and capacity device via connecting lines. The target device includes a control device and / or a power supply device.

[0040] It is understood that at least two connecting wires of several sensors 3 on the fire door in this embodiment will be directly connected to the connecting element 2. Thus, when technicians fix the fire door to the formation and capacity testing equipment, they can directly connect the connecting element 2 to the control device of the formation and capacity testing equipment to realize the reception of detection data from several sensors 3 by the formation and capacity testing equipment, or connect the connecting element 2 to the power supply device of the formation and capacity testing equipment to realize the power supply to several sensors 3 by the formation and capacity testing equipment. This ensures the normal execution of the formation and capacity testing process of the battery pack and greatly reduces the wiring time of the sensors 3 on the fire door.

[0041] In some embodiments, the door body 1 may include:

[0042] The door frame has a sliding groove symmetrically provided on the left and right sides inside;

[0043] The cylinders are vertically installed on the left and right sides inside the door frame, with the driving direction facing upward, and are used to drive the lifting and lowering of the movable door panel.

[0044] The fixed door panel is fixed to the upper part of the inner side of the door frame;

[0045] The movable door panel has a fixing piece symmetrically arranged on the left and right sides at the top, and several pulleys symmetrically arranged on the left and right sides. The fixing piece is connected to the power output end of two cylinders. A sliding groove is embedded on each of the left and right sides, and the pulleys are slidably connected to the sliding groove.

[0046] A position sensing component is installed on the door frame to identify the lifting and lowering status of the movable door panel;

[0047] Limit blocks are symmetrically located at the top inside the door frame to limit the lifting stroke of the movable door panel.

[0048] After electrically connecting the controller of the formation and capacity testing equipment to the cylinder, the controller can drive the cylinder to raise the movable door panel, allowing the stacker crane to load and unload the lithium batteries undergoing formation and capacity testing through the window exposed as the movable door panel rises. The controller can monitor the temperature of the lithium batteries undergoing formation and capacity testing in real time via a temperature sensor mounted on the fire door. When the temperature exceeds a set threshold, the controller drives the cylinder to lower the movable door panel. After the danger has passed, the controller then drives the cylinder to raise the movable door panel again.

[0049] The fixed door panel and the movable door panel can be the same size, so that when the movable door panel is lowered, it can seal the door frame.

[0050] In some embodiments, the aforementioned positioning sensor may include:

[0051] The upper mounting bracket is fixed to the top of the door frame inside;

[0052] The lower mounting base is fixed to the bottom of the door frame;

[0053] The upper position sensor is mounted on the upper mounting base with the sensing direction facing downwards and is connected to the controller to detect whether the movable door panel has moved to the upper position.

[0054] The lower position sensor is installed on the lower mounting base with the sensing direction facing upwards and is connected to the controller to detect whether the movable door panel has descended to the correct position.

[0055] It should be noted that the positions of the aforementioned sensors 3 on the door 1 can be set by those skilled in the art according to actual conditions, and this embodiment does not impose any restrictions. Figure 1 The location of sensor 3 in the document should not be considered a limitation on the embodiments of this application.

[0056] In some embodiments, the aforementioned sensors 3 may be fixed or detachable when mounted on the door 1. The specific configuration can be determined by those skilled in the art based on the actual situation, and this application does not impose any restrictions.

[0057] In some embodiments, the specific types of the aforementioned sensors 3 are determined by the operating parameters that need to be monitored during the fire-fighting process. For example, when detecting the internal temperature of the formation and capacity testing equipment, the sensors 3 include temperature sensors; when detecting whether a stacker crane is loading or unloading battery packs, the sensors 3 include stacking sensors; when detecting whether personnel are approaching the formation and capacity testing equipment, a grating sensor can be installed on the door to monitor in real time whether there are obstacles (such as stacker cranes, goods, or personnel) in the closing path of the fire door. If an obstacle is detected, the grating will send a signal to the control system to prevent the fire door from closing, thereby avoiding collisions or pinching injuries; when detecting whether the cylinder in the door is functioning properly, the sensors 3 include cylinder sensors.

[0058] In some embodiments, the connecting element 2 can be fixed on the door 1 or on the chemical reaction and reaction equipment. The specific configuration can be determined by those skilled in the art based on the actual situation, and this application does not impose any restrictions.

[0059] For example, if the connecting element 2 is fixed on the door body 1, the connecting element 2 can be embedded in the surface of the door body 1, so that technicians can directly connect at least two connecting wires of several sensors 3 to the connecting element 2 on the surface of the door body 1.

[0060] For example, if the connecting element 2 is fixed on the formation and filling device, the connecting element 2 can be located on the inner wall of the installation position of the formation and filling device for installing the fire door. That is, the connecting element 2 is structurally detached from the door body 1, and the two are electrically connected only through the connecting wire. The technician can connect at least two connecting wires of several sensors 3 to the connecting element 2 before installing the connecting element 2 on the formation and filling device.

[0061] In some embodiments, the connecting element 2 includes a housing. The first connecting end 21 and the second connecting end 22 may be located on the same surface of the housing or on different surfaces of the housing. The specific configuration can be made by those skilled in the art according to the actual situation, and the embodiments of this application do not impose any restrictions.

[0062] For example, such as Figure 2 As shown, if the first connection end 21 and the second connection end 22 are located on the same side of the connecting element 2, then at least two connecting lines connected to several sensors 3 and the connecting line connected to the target element of the formation and capacity device will also be located on the same side, thereby facilitating the centralized management of the connecting lines by technicians.

[0063] For example, such as Figure 3 As shown, if the first connection end 21 and the second connection end 22 are located on different surfaces of the connecting element 2, then at least two connecting lines corresponding to several sensors 3 will be concentrated on the first surface of the connecting element 2, while the connecting line connected to the target element will be located on the second surface of the connecting element 2, thereby reducing the wiring difficulties caused by the excessive concentration of connecting lines.

[0064] In some embodiments, such as Figure 4 As shown, the first connection terminal 21 includes several wiring ports, and different wiring ports are used to connect different connection lines.

[0065] In some embodiments, the aforementioned wiring port can be a pin header or a connection terminal, and the specific configuration can be determined by those skilled in the art based on the actual situation. This application does not impose any limitations on the embodiments.

[0066] In some embodiments, the arrangement of the aforementioned wiring ports can adopt common arrangement methods in the art, for example, such as... Figure 2 As shown, the above-mentioned wiring ports can be a single row of ports, so that technicians can connect the corresponding sensor 3 according to actual needs.

[0067] In some embodiments, the arrangement of the aforementioned wiring ports can be regional distribution, that is, the distribution positions of the wiring ports on the housing of the connecting element 2 are divided into several regions, and the wiring ports in different regions are connected accordingly. For example, in the case where a single sensor 3 has multiple connecting wires, such as... Figure 5As shown, the wiring ports can be divided into region one and region two on the housing of the connecting element 2. Region one is used to connect the first sensor, and region two is used to connect the second sensor. Region one includes a first port and a second port, and region two includes a third port and a fourth port. The first port is connected to the first connecting line of the first sensor, the second port is connected to the second connecting line of the first sensor, the third port is connected to the first connecting line of the second sensor, and the fourth port is connected to the second connecting line of the second sensor.

[0068] In one embodiment, the connecting element 2 is a terminal block or a combination quick connector.

[0069] It is understandable that, in order to realize the connection relationship between the formation and capacity testing equipment and the connecting element 2, the formation and capacity testing equipment should have a connection end that matches the connecting element 2. For example, if the connecting element 2 is a terminal block, then the target device of the formation and capacity testing equipment can be a terminal block, and the two terminal blocks are connected by a connecting line such as a ribbon cable or a cable; if the connecting element 2 is a combination quick connector, then the target device of the formation and capacity testing equipment is also equipped with a corresponding combination quick connector, and the two connectors are electrically connected by direct mating.

[0070] It should be noted that the shape of the connecting element 2 can be a regular geometric shape, such as a rectangle, or other shapes; a guide structure can be set near several wiring ports to speed up the connection between the connecting wire and the wiring port. The guide structure can be a single structure that covers the area of ​​all wiring ports, or there can be multiple guide structures, with different guide structures corresponding to different wiring ports.

[0071] In one embodiment, the second connection terminal 22 includes a communication interface, which is electrically connected to the formation and capacity testing device via a connection cable.

[0072] In some embodiments, such as Figure 6 As shown, the communication interface can be directly connected to several wiring ports of the first connection terminal 21. That is, the communication interface includes multiple communication connection terminals 221, and different communication connection terminals 221 are connected to different communication ports among the several wiring ports. Thus, several sensors 3 can directly send several detection signals obtained by detection to the controller of the formation and capacity device in sequence through the communication port and the connection terminal.

[0073] In other embodiments, such as Figure 7 As shown, the connecting element 2 may include a controller 23, which is connected to the first connecting end 21 and the communication interface respectively. After receiving several detection signals from several sensors 3, the controller 23 can integrate the several detection signals and send them to the controller of the formation and capacity device through the communication interface.

[0074] The communication interface mentioned above can be a commonly used communication interface in the field, such as RS484, and the specific configuration shall be determined by those skilled in the art according to the actual situation. This application embodiment does not impose any restrictions.

[0075] In one embodiment, such as Figure 8 As shown, the fire door may include a network transmission device 4, which is connected to a communication interface to output detection signals from several sensors 3 via wireless network communication.

[0076] During data transmission, the controller in the formation and capacity device must first establish a wireless communication connection with the network transmission device 4, and then receive the detection signals of several sensors 3 transmitted by the network transmission device 4 through the wireless communication connection.

[0077] Among them, the network transmission device 4 can be a commonly used network transmission device in the field, such as Ethernet, Wifi, Bluetooth or near field communication.

[0078] To ensure the normal operation of the sensor 3, each sensor 3 needs to be powered on. After connecting each sensor 3 to the first connection terminal 21, it is necessary to ensure that the power connection line of each sensor 3 is connected to the power supply port of the first connection terminal 21. This ensures that after the connecting element 2 is connected to an external power supply or the power device of the capacity testing equipment, each sensor 3 can receive the power supply signal transmitted by the power device.

[0079] In one embodiment, several wiring ports include power supply ports, and each sensor 3 includes a power connection line. The power supply ports are connected to the power connection lines of each sensor 3 via the connection lines.

[0080] In order to ensure that the sensor can receive electrical signals through the power supply port, the connecting element 2 needs to be connected to an external power supply or the power device of the forming capacity device. The port in the connecting element 2 used to connect to the power device or external power supply can be one of the connecting ports of the second connecting terminal 22, or it can be a different connecting terminal from the first connecting terminal 21 and the second connecting terminal 22.

[0081] For example, if the port in the connecting element 2 used for connecting to a power supply device or an external power supply is a different connecting terminal from the first connecting terminal 21 and the second connecting terminal 22, such as Figure 9 As shown, the connecting element 2 includes a third connecting end 24. One end of the third connecting end 24 is connected to the power supply port of the first connecting end, and the other end of the third connecting end 24 is connected to an external power supply or the power supply device of a capacity-forming device via a connecting wire.

[0082] It should be understood that the target device connected to the second connection terminal 22 in this embodiment may include other devices besides the power supply device that need to be electrically connected to the sensor 3, such as control devices.

[0083] For example, if the port in the connecting element 2 used for connecting to a power supply device or an external power supply is a connection port in the second connection terminal 22, such as Figure 10 As shown, the second connection terminal 22 includes a power connection terminal 222. One end of the power connection terminal 222 is connected to the power supply port of the first connection terminal 21, and the other end of the power connection terminal 222 is connected to the power supply device of the formation and capacity testing equipment or an external power supply.

[0084] This application embodiment also provides a formation and capacity testing device, which includes the fire door in any of the above embodiments. The formation and capacity testing device is connected to the connecting element 2 on the fire door via a connecting line, thereby realizing the electrical connection between the formation and capacity testing device and the sensor 3.

[0085] The formation and capacity testing device includes a target device that can be electrically connected to the sensor 3. For example, if the formation and capacity testing device needs to power the sensor 3, then the formation and capacity testing device needs to include a power supply device. The power supply device is connected to the power supply connection line of the sensor 3 through the connecting element 2, so as to receive the power supply signal transmitted by the power supply device through the power supply connection line. Alternatively, the formation and capacity testing device needs to include a control device. The control device is electrically connected to the communication connection line of the sensor 3 through the connecting element 2, so as to send the detection signal of the sensor 3 to the control device through the communication connection line.

[0086] When connecting the target device and the sensor in the formation capacity device, the multiple connection lines of the sensor are connected to the connecting element, so the connection lines of the target device also need to be connected to the connecting element. However, for cases where the target device has multiple connection lines, such as the connection lines of the power supply device and the connection lines of the control device, the multiple connection lines need to be connected to the connecting element in sequence.

[0087] In some embodiments, the formation and capacity testing device may include a connecting element. One end of the connecting element on the formation and capacity testing device is electrically connected to the target device, and the other end of the connecting element on the formation and capacity testing device is electrically connected to the connecting element 2 on the fire door. Thus, when the target device of the formation and capacity testing device is electrically connected to the sensor 3 on the fire door, the connecting element on the formation and capacity testing device and the connecting element 2 on the fire door can be directly connected through an integrated cable, further reducing the connection time between the formation and capacity testing device and the target device.

[0088] In some embodiments, the connecting element on the forming and filling equipment and the connecting element 2 on the fire door can be a terminal block, and the two terminal blocks are connected by a connecting line such as a ribbon cable or a cable.

[0089] In some embodiments, the connecting element on the forming and filling device and the connecting element 2 on the fire door can be a combination quick plug, and the two plugs are connected by mating.

[0090] It should be understood that the phrases "one embodiment," "an embodiment," or "some embodiments" mentioned throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment," "in one embodiment," or "in some embodiments" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of this application, the sequence numbers of the above-described processes do not imply a sequential order of execution; the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. The sequence numbers of the above-described embodiments are merely for descriptive purposes and do not represent the superiority or inferiority of the embodiments. The descriptions of the various embodiments above tend to emphasize the differences between the various embodiments; their similarities or commonalities can be referred to mutually, and for the sake of brevity, they will not be repeated here.

[0091] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three kinds of relationships. For example, object A and / or object B can represent three situations: object A exists alone, object A and object B exist simultaneously, and object B exists alone.

[0092] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0093] The aforementioned separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules; they may be located in one place or distributed across multiple devices; some or all of the modules may be selected to achieve the purpose of this embodiment according to actual needs.

[0094] In addition, each functional module in the various embodiments of this application can be integrated into one processing terminal, or each module can be a separate terminal, or two or more modules can be integrated into one terminal; the integrated modules can be implemented in hardware or in the form of hardware plus software functional terminals.

[0095] The features disclosed in the several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0096] The above description is merely an embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A fire door, characterized in that, The fire door, used in a chemical composition and capacity testing equipment, includes: Door body (1); Several sensors (3) are distributed on the door body (1); The connecting element (2) includes a first connecting end (21) and a second connecting end (22). The first connecting end (21) is electrically connected to each of the plurality of sensors (3), and the second connecting end (22) is connected to the target device of the formation and capacity device.

2. The fire door as described in claim 1, characterized in that, The sensor (3) includes several connecting lines, and the first connecting end (21) includes several wiring ports, with different wiring ports used to connect different connecting lines.

3. The fire door as described in claim 2, characterized in that, The distribution of the several wiring ports on the connecting element (2) is divided into several regions, and the wiring ports in different regions are connected to different sensors (3).

4. The fire door as described in claim 1, characterized in that, The target device includes a controller, and the second connection end (22) includes a communication interface. The communication interface is electrically connected to the controller of the formation and capacity device through a connection line. The communication interface is also connected to the first connection end (21).

5. The fire door as described in claim 4, characterized in that, The fire door includes a network transmission device (4), which is connected to the communication interface to output the detection signals of the plurality of sensors (3) via wireless communication.

6. The fire door as described in claim 2, characterized in that, The plurality of wiring ports include a power supply port, and each sensor (3) includes a power connection line. The power supply port is connected to the power connection line of each sensor (3).

7. The fire door as described in claim 6, characterized in that, The target device includes a power supply device, and the second connection terminal (22) includes a power connection terminal (222). One end of the power connection terminal (222) is connected to the power supply port, and the other end of the power connection terminal (222) is connected to the power supply device.

8. The fire door as described in any one of claims 1-7, characterized in that, The connecting element (2) is a terminal block.

9. The fire door as described in any one of claims 1-7, characterized in that, The connecting element (2) is a combination quick connector.

10. A chemical composition and capacity testing device, characterized in that, Including the fire door as described in any one of claims 1-9.

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