Connector for electric pile inspection, battery device and electric equipment

Abstract

The invention relates to a connector for electric pile inspection, a battery device and electric equipment, the connector comprises a first connecting part and a second connecting part, the first connecting part comprises a plurality of first ports, and the plurality of first ports comprise a first head end port and a first tail end port; the second connecting part is connected to one side of the first connecting part and comprises a second head end port; the first connecting part protrudes from the second connecting part on the first side, the first connecting part protrudes from the second connecting part on the second side, the first port and the second port are suitable for being connected with a detection terminal, and a first gap is formed between a first tail end port and a first head end port which belong to the two connectors and are adjacent to each other; and a second head end port of the connector which is arranged at the back in two adjacent connectors is as wide as the first gap and is aligned along the second direction. According to the connector provided by the invention, more arrangement space is provided for the edge area, and the structural strength of the connector is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery stacks, and in particular to a connector for battery stack inspection, a battery device, and electrical equipment. Background Art

[0002] The fuel cell stack is the core component of the fuel cell system, which is composed of multiple single cells stacked in series. Since multiple single cells are connected in series, when a single cell fails, it will affect the performance of the entire stack. Therefore, it is necessary to monitor the voltage of each single cell in real time through a patrol connector. Specifically, one side of the patrol connector is provided with multiple connection terminals, which are inserted between two adjacent single cells. There is at least one single cell between two adjacent connection terminals. The other side of the patrol connector is provided with multiple ports corresponding to the connection terminals. The ports are used to electrically connect to the connection harness, and the connection harness is electrically connected to the battery management system of the electrical equipment, so that the voltage information of the single cell between the two adjacent connection terminals is transmitted to the battery management system, thereby realizing real-time monitoring.

[0003] In the prior art, due to the large number of cells in a battery stack, multiple inspection connectors need to be set up simultaneously. The multiple inspection connectors are arranged side by side along the stacking direction of the cells, and the ports on the inspection connectors are arranged at intervals along the stacking direction.

[0004] However, in order to improve the mass power density and volume power density of the battery stack, the spacing between single batteries is getting smaller and smaller, resulting in the spacing between two adjacent ports also getting smaller and smaller. In order to ensure that the spacing between the port at the end of the previous inspection connector and the port at the front end of the next inspection connector in two adjacent inspection connectors is consistent with the spacing between the two adjacent ports in the same inspection connector, the outer wall thickness of the two adjacent inspection connectors close to the port is smaller, resulting in poor structural strength of the inspection connector. Summary of the Invention

[0005] One of the purposes of the present invention is to provide a connector for battery stack inspection to solve the problem that the outer wall of the battery stack inspection connector in the prior art is thin, resulting in poor structural strength of the connector; the second purpose is to provide a battery device; and the third purpose is to provide an electrical equipment.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A connector for inspecting a fuel cell stack, for use with a fuel cell group, comprising: a first connecting portion, comprising a plurality of first ports arranged side by side along a first direction, and a first head end edge region located on a first side and a first end edge region on a second side of the plurality of first ports along the first direction, wherein the plurality of first ports include a first head end port and a first end port; a second connecting portion, connected to one side of the first connecting portion along the second direction, wherein the second connecting portion includes a second head end port, and a second head end edge region located on a first side and a second end edge region on a second side of the second head end port along the first direction; wherein, on the first side, the second connecting portion protrudes from the first connecting portion to form a first avoidance space on the first side of the first connecting portion In the embodiment of the present invention, the first connecting portion protrudes from the second connecting portion on the second side of the second connecting portion to form a second avoidance space on the second side of the second connecting portion. When the plurality of connectors are arranged along the first direction, each of the first avoidance spaces is suitable for accommodating the second end of the first connecting portion of the adjacent connector, and each of the second avoidance spaces is suitable for accommodating the first end of the second connecting portion of the adjacent connector. The first port and the second head port are both suitable for connecting the detection terminal, and belong to the two connectors and there is a first gap between the adjacent first end port and the first head port. The second head port of the connector arranged at the rear of the two adjacent connectors has the same width as the first gap and is aligned along the second direction.

[0008] According to the above technical means, multiple first ports and second ports correspond one-to-one with detection terminals. The detection terminals are used to be inserted between two adjacent single cells in the fuel cell stack. The first ports and second ports are used to insert a connecting harness. The connecting harness is used to connect to the battery management system of the electrical equipment. The voltage between the two adjacent detection terminals is transmitted to the battery management system via the connecting harness. When a group of voltages is not within the normal range, it is only necessary to locate the two detection terminals used to detect the voltage and replace the single cell between the two detection terminals. The spacing between the center lines of two adjacent first ports in the same connector is consistent with the width of the corresponding number of single cells to be detected, thereby ensuring that the number of single cells detected between any two adjacent first ports in the same connector remains consistent.

[0009] In the prior art, when the number of single cells that need to be detected between two adjacent detection terminals is small, if the centerline distance of each first port still needs to be kept consistent, the distance between the centerlines of the first end port of the previous connector and the first head port of the next connector in the two adjacent connectors will be small, and the first end port and the first head port themselves have a certain width, so the thickness of the first head edge area and the first end edge area of ​​the connector is low, resulting in poor structural strength of the connector. Therefore, the present application needs to set a first gap between the first end port and the first head port. The first gap reserves a certain space for the first head edge area and the first end edge area between the first end port and the first head port, which is conducive to ensuring the thickness of the first head edge area and the first end edge area, thereby enhancing the structural strength of the connector. When there is a first gap between the first end port and the first head port, the distance between the centerlines of the first end port of the previous connector and the first head port of the next connector will be greater than the distance between the centerlines of the two adjacent first ports in the same connector, resulting in different detection quantities in the detection terminals corresponding to the first ports.

[0010] Therefore, it is necessary to set the second head end port in the rear connector to be the same as the first gap width and aligned along the second direction, so that the distance between the center line of the first end port of the front connector and the center line of the second head end port of the rear connector is equal to the center line of the second head end port of the rear connector and the center line of the first head end port of the rear connector, and is also equal to the distance between the center lines of the two adjacent first ports in the same connector. Therefore, it is only necessary to insert the connection harness into all the first ports and the second head end ports in each connector to ensure that the number of single cells between any two adjacent detection terminals remains consistent, thereby improving the efficiency of detection. In the second connecting part, it is only necessary to ensure the position of the second head end port, and the structure of other parts is not restricted. Therefore, the second head end edge area and the second end edge area can be appropriately thickened to ensure the structural strength of the connector. In this way, the connector for battery stack inspection provided by the present application can increase the thickness of the first head end edge area, the second head end edge area, the first end edge area and the second end edge area of ​​the connector while ensuring the detection effect, which is beneficial to improving the structural strength of the connector.

[0011] Furthermore, the second connection portion includes a plurality of second ports arranged side by side along the first direction, and the plurality of second ports include a second head end port and a second tail end port.

[0012] According to the above technical means, at this time, the first connection part is the main connection area, and the second connection part is the auxiliary connection area. Except for the second head end port, other second ports can be plugged with connecting harnesses when the battery stack needs to increase the detection density. In this way, there is still no need to maintain a strict spacing between the second head end port of the rear connector and the second end port of the previous connector, so as to ensure the thickness of the second head end edge area and the second end edge area, thereby ensuring the structural strength of the connector.

[0013] Furthermore, along the first direction, the sum of the widths of the first leading edge region and the first trailing edge region is less than or equal to the width of the first gap.

[0014] According to the above technical means, a certain gap can be retained between the first head end edge area and the first tail end edge area, which can reserve a certain installation operation space for the connector, which is beneficial to avoid interference between the first head end edge area and the first tail end edge area when multiple connectors are installed at the same time, and avoid wear between the first head end edge area and the first tail end edge area when the connector is installed, which is beneficial to improve the installation efficiency of the connector.

[0015] Furthermore, the width of the first leading edge region is equal to or different from the width of the first trailing edge region.

[0016] According to the above technical means, when the force is equal, it is beneficial to ensure that the connector is evenly stressed during the process of plugging and unplugging the wiring harness, reduce the risk of deformation, and increase the service life of the connector. It can also be set to unequal according to the installation position of the connector to optimize the spatial layout of the connector and improve space utilization.

[0017] Furthermore, the fuel cell group includes a plurality of single cells arranged at intervals along a first direction, and the plurality of single cells constitute a plurality of modules to be inspected, each module to be inspected includes at least one single cell, and two adjacent detection terminals projected within a reference plane are respectively connected to the two sides of the same module to be inspected to detect the voltage of the module to be inspected, and the reference plane is parallel to the first direction.

[0018] According to the above technical means, the voltage at both ends of the module to be inspected is detected through two adjacent detection terminals, and the detection results are transmitted to the battery management system through the connecting harness. When a battery device fails, the battery management system can see the module to be inspected with abnormal voltage, and it can be determined that the failure occurs in the single cell in the module to be inspected. The module to be inspected can be disassembled and replaced to quickly complete the maintenance work of the battery device, which is conducive to quickly locating the position of the faulty single cell and improving the maintenance efficiency of the battery device.

[0019] Furthermore, at least part of the modules to be inspected include two single cells connected in series.

[0020] According to the above technical means, when the module to be detected is set to two single cells, the accuracy of fault location can be guaranteed and the maintenance cost of the battery device can be saved.

[0021] Furthermore, multiple first ports are arranged side by side and adjacent to each other, and among multiple second ports, the remaining second ports except the second head-end port are arranged side by side and adjacent to each other, the second head-end port is spaced apart from the remaining second ports, and any second port except the second head-end port is opposite to two adjacent first ports, and the center line of the second port constitutes a symmetry line of the two adjacent first ports.

[0022] According to the above technical means, it can be applied to different detection requirements with strong flexibility. For the same detection requirements, when multiple connectors are set, the wiring method of each connector is consistent, which is conducive to improving wiring efficiency and improving the orderliness of the connection harness.

[0023] Furthermore, the distance d1 between the center lines of two adjacent first ports and the distance d0 between two single cells in the module to be inspected satisfy the following relationship: d1 / d0=2.

[0024] According to the above technical means, when the module to be detected includes two single cells, each connector only needs to connect the first port and the second head end port to the connection harness, and the other second ports do not need to be wired. The wiring method is simple and is conducive to improving wiring efficiency.

[0025] Furthermore, among the plurality of second ports, a distance d2 between center lines of the remaining second ports except the second head port and a distance d0 between two single cells in the module to be inspected satisfy: d2 / d0=2.

[0026] According to the above technical means, when the module to be inspected includes only one single battery, all the first ports and second ports on the connector can be connected to the connection harness, thereby achieving individual inspection of each single battery and improving the inspection accuracy.

[0027] Furthermore, a distance d3 between a center line of the second head end port and a center line of the first head end port and a distance d0 between two single cells in the module to be inspected satisfy: d3 / d0=2.

[0028] According to the above technical means, it can be ensured that when the first port and the second head end port in the connector are connected to the connecting harness, only the detection terminal connected to the harness starts working, and the distance between the two adjacent working detection terminals is d3, so that the number of single cells in each module to be tested remains consistent, thereby improving the uniformity of detection.

[0029] Furthermore, the multiple modules to be inspected include several first-type modules to be inspected, each of the first-type modules to be inspected includes a single battery, and the multiple connectors arranged along the first direction include a head-end connector, each of the first ports in the head-end connector is provided with a first detection terminal, and each of the second ports is provided with a second detection terminal, and two adjacent first detection terminals and second detection terminals are used to detect the voltage of a first-type module to be inspected.

[0030] According to the above technical means, the first type of modules to be inspected are located at the two opposite ends of the fuel cell group along the first direction. The single cells close to the ends of the fuel cell group along the first direction are in more contact with the external environment, and their temperature is lower than that of the single cells in the middle. They are more likely to withstand higher current density due to connection resistance or contact problems. Therefore, the probability of failure of the single cells close to the ends is higher. Therefore, the single cells close to the ends are formed into the first type of modules to be inspected, which is conducive to improving the accuracy of fault monitoring of the single cells at the ends.

[0031] Furthermore, the multiple modules to be inspected also include several second-type modules to be inspected, and the second-type modules to be inspected each include two single cells connected in series. Among the remaining connectors except the head-end connector, the first port of each connector is provided with a first detection terminal, and the second head-end port is provided with a second detection terminal. Two adjacent first detection terminals are used to detect the voltage of a second-type module to be inspected, and each second detection terminal and the adjacent first detection terminal are used to detect the voltage of a second-type module to be inspected.

[0032] According to the above technical means, since the temperature of the single cells in the middle of the fuel cell group is more uniform and the current distribution is more balanced, the probability of failure is relatively small. Therefore, the positioning accuracy can be appropriately reduced, and the two adjacent single cells located in the middle are formed into the second type of module to be inspected, thereby saving the daily monitoring and maintenance costs of the battery device.

[0033] A battery device comprises: a fuel cell stack comprising a plurality of single cells spaced apart along a first direction; and a stack inspection connector as described in any one of the above, wherein the stack inspection connector is used to detect the voltage of the single cells.

[0034] According to the above technical means, the above-mentioned connector for battery stack inspection can be stably fixed on the fuel cell group, and the voltage of the single cell can be monitored and detected in real time, and the detection results can be transmitted to the battery management system through the connecting harness. The connector structure of the embodiment of the present application is high in strength, which is conducive to improving the overall stability of the battery device. The connector operates continuously and stably, which is conducive to improving the safety and reliability of the battery device. In addition, except for the head-end connector, the wiring method of other connectors remains consistent, the wiring efficiency is high, and it is also conducive to improving the orderliness of the connection harness within the electrical equipment.

[0035] An electrical device comprises the above-mentioned battery device.

[0036] Beneficial effects of the present invention:

[0037] (1) There is sufficient space between the first head edge area, the second head edge area, the first terminal edge area, and the second terminal edge area of ​​the connector of the present invention, and the thickness is relatively large, which is conducive to improving the structural strength of the connector.

[0038] (2) Except for the head-end connector, the other connectors of the present invention maintain the same wiring method, which is easy to operate and helps to improve the installation efficiency of the connectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a diagram showing the use status of an inspection connector in the prior art;

[0040] Figure 2 This is a schematic structural diagram of the connector for stack inspection in the present invention;

[0041] Figure 3 Schematic diagram of the positional relationship between two adjacent connectors for battery stack inspection in the present invention;

[0042] Figure 4 This is a diagram showing the usage status of the connector for stack inspection in the present invention.

[0043] Description of reference numerals:

[0044] 100-connector;

[0045] 110 - first connection portion; 111 - first port; 1111 - first head end port; 1112 - first end end port; 112 - first head end edge area; 113 - first end end edge area; 114 - first avoidance space;

[0046] 120 - second connection portion; 121 - second port; 1211 - second head end port; 1212 - second end end port; 122 - second head end edge area; 123 - second end end edge area; 124 - second avoidance space;

[0047] 130-head end connector;

[0048] 200-fuel cell stack; 210-single cell; 220-dummy cell;

[0049] 300-connecting harness;

[0050] 10-Inspection connector; 11-Port; 11a-End port; 11b-Front port;

[0051] 20-single battery. DETAILED DESCRIPTION

[0052] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily appreciate the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the various details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0053] As shown in the background technology, the fuel cell stack is the core component of the fuel cell system, which is composed of multiple single cells stacked in series. Since multiple single cells are connected in series, when a single cell fails, it will affect the performance of the entire fuel cell stack. Therefore, it is necessary to monitor the voltage of each single cell in real time through a patrol connector. Specifically, one side of the patrol connector is provided with multiple connection terminals, which are inserted between two adjacent single cells. There is at least one single cell between two adjacent connection terminals. The other side of the patrol connector is provided with multiple ports corresponding to the connection terminals. The ports are used to electrically connect to the connection harness, and the connection harness is electrically connected to the battery management system of the electrical equipment, so that the voltage information of the single cell between the two adjacent connection terminals is transmitted to the battery management system, thereby realizing real-time monitoring.

[0054] In the prior art, due to the large number of cells in a battery stack, multiple inspection connectors need to be installed simultaneously. The multiple inspection connectors are arranged side by side along the stacking direction of the cells, and the ports on the inspection connectors are arranged at intervals along the stacking direction. However, in order to improve the mass power density and volume power density of the battery stack, the spacing between cells is getting smaller and smaller, and the thickness of the cells themselves is getting thinner and thinner, resulting in a smaller spacing between two adjacent ports. In order to ensure that the spacing between the end port of the previous inspection connector and the front port of the next inspection connector in two adjacent inspection connectors remains consistent with the spacing between two adjacent ports in the same inspection connector, the outer wall thickness of the two adjacent inspection connectors near the end port or the front port is relatively small, resulting in poor structural strength of the inspection connectors.

[0055] Take the example of two cells between two adjacent detection terminals. Figure 1As shown in the figure, in the prior art, the distance between two adjacent single cells 20 is w1. Then, the distance between the centerlines of two adjacent ports 11 needs to be w2 = 2 * w1. For two adjacent inspection connectors 10, the distance w3 between the end port 11a of the previous inspection connector 10 and the front port 11b of the next inspection connector 10 is w3 = w2 = 2 * w1. However, due to the need for the connection of the connecting wire harness, the port 11 itself has a certain width, which results in the outer wall thickness w4 of the inspection connector 10 being less than w1. Therefore, the outer wall thickness of the inspection connector 10 is difficult to meet the requirements of its structural strength.

[0056] In view of the above technical problems, the embodiments of the present application provide a connector for stack inspection, a battery device and an electrical device. The multiple first ports and second ports of the connector for stack inspection correspond to the detection terminals one by one. The detection terminals are used to be inserted between two adjacent single cells of a fuel cell stack. The first ports and the second ports are used to insert the connecting wire harness, and the connecting wire harness is used to connect to the battery management system of the electrical device. The voltage between two adjacent detection terminals is transmitted to the battery management system through the connecting wire harness. When the voltage of a certain group is not within the normal range, only the two detection terminals for detecting the voltage need to be located, and the single cell between the two detection terminals can be replaced. The distance between the centerlines of two adjacent first ports in the same connector is consistent with the width of the corresponding number of single cells to be detected, thereby ensuring that the number of single cells detected between any two adjacent first ports in the same connector is the same.

[0057] In the prior art, when the number of single cells to be detected between two adjacent detection terminals is small, if the distance between the centerlines of each first port still needs to be consistent, it will result in a small distance between the centerlines of the first end port of the previous connector and the first front port of the next connector in two adjacent connectors. Moreover, the first end port and the first front port itself have a certain width. Therefore, the thickness of the first front edge area and the first end edge area of the connector is relatively low, resulting in poor structural strength of the connector. Therefore, the present application needs to set a first gap between the first end port and the first front port. The first gap reserves a certain space for the first front edge area and the first end edge area between the first end port and the first front port, which is beneficial to ensuring the thickness of the first front edge area and the first end edge area and thus enhancing the structural strength of the connector. When there is a first gap between the first end port and the first front port, the distance between the centerlines of the first end port of the previous connector and the first front port of the next connector will be greater than the distance between the centerlines of two adjacent first ports in the same connector, resulting in different detection quantities among the detection terminals corresponding to the first ports.

[0058] Therefore, it is necessary to set the second head end port in the rear connector to be the same as the first gap width and aligned along the second direction, so that the distance between the center line of the first end port of the front connector and the center line of the second head end port of the rear connector is equal to the center line of the second head end port of the rear connector and the center line of the first head end port of the rear connector, and is also equal to the distance between the center lines of the two adjacent first ports in the same connector. Therefore, it is only necessary to insert the connection harness into all the first ports and the second head end ports in each connector to ensure that the number of single cells between any two adjacent detection terminals remains consistent, thereby improving the efficiency of detection. In the second connecting part, it is only necessary to ensure the position of the second head end port, and the structure of other parts is not restricted. Therefore, the second head end edge area and the second end edge area can be appropriately thickened to ensure the structural strength of the connector. In this way, the connector for battery stack inspection provided by the present application can increase the thickness of the first head end edge area, the second head end edge area, the first end edge area and the second end edge area of ​​the connector while ensuring the detection effect, which is beneficial to improving the structural strength of the connector.

[0059] The following specific embodiments are used to describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The following embodiments of the present application are described in conjunction with the accompanying drawings:

[0060] It should be noted that the connector for battery stack inspection provided in the embodiment of the present application can be applied to various different battery devices.

[0061] Figure 1 This is a diagram showing the use status of an inspection connector in the prior art; Figure 2 This is a schematic structural diagram of the connector for stack inspection in the present invention; Figure 3 Schematic diagram of the positional relationship between two adjacent connectors for battery stack inspection in the present invention; Figure 4 This is a diagram showing the usage status of the connector for stack inspection in the present invention. Figure 2 The X direction is the first direction, and the Y direction is the second direction.

[0062] See also Figure 2 、 Figure 3 and Figure 4As shown, the connector 100 for stack inspection of the embodiment of the present application is used for a fuel cell group 200 and includes: a first connecting portion 110 and a second connecting portion 120. The first connecting portion 110 includes a plurality of first ports 111 arranged side by side along a first direction, and a first head edge region 112 on a first side and a first end edge region 113 on a second side of the plurality of first ports 111 along the first direction. The plurality of first ports 111 include a first head port 1111 and a first end port 1112. The first connecting portion 110 serves as the main connection area, and each first port 111 is connected to a connecting harness 300, which is used to electrically connect to the battery management system of the electrical device.

[0063] The second connection portion 120 is connected to one side of the first connection portion 110 along the second direction. The second connection portion 120 includes a second head end port 1211, a second head end edge region 122 located on a first side of the second head end port 1211 along the first direction, and a second tail end edge region 123 located on a second side of the second head end port 1211. The second connection portion 120 is an auxiliary connection region. One or more of the plurality of second ports 121 can be selected for insertion into the connection harness 300 based on testing requirements. The connection harness 300 is also electrically connected to the battery management system.

[0064] Among them, on the first side, the second connection part 120 protrudes from the first connection part 110 to form a first avoidance space 114 on the first side of the first connection part 110, and on the second side, the first connection part 110 protrudes from the second connection part 120 to form a second avoidance space 124 on the second side of the second connection part 120. It can be understood that since the number of single cells 210 in the fuel cell stack 200 is large, multiple connectors 100 need to be arranged side by side along the first direction to achieve simultaneous detection of all single cells 210. When multiple connectors 100 are arranged along the first direction, each first avoidance space 114 is suitable for accommodating the second end of the first connection part 110 of the adjacent connector 100, and each second avoidance space 124 is suitable for accommodating the first end of the second connection part 120 of the adjacent connector 100. In this way, when multiple connectors 100 are arranged side by side, in two adjacent connectors 100, the second end of the first connection part 110 of the previous connector 100 and the first end of the second connection part 120 of the subsequent connector 100 interfere with each other in the second direction, which can play a certain limiting role, preventing the connector 100 from shifting along the second direction, ensuring that multiple connectors 100 are located on the same straight line along the first direction, which is conducive to improving the stability of the installation of the connector 100.

[0065] The fuel cell group 200 includes a plurality of single cells 210 spaced apart along a first direction, and the plurality of single cells 210 are integrated into a fuel cell stack. The first port 111 and the second port 121 are both suitable for connecting detection terminals, and each detection terminal is inserted between two adjacent single cells 210. The two adjacent detection terminals detect the voltage of the single cells 210 therebetween, and transmit the voltage information to the battery management system through a connecting harness 300 connected to the first port 111 or the second port 121. For example, when an abnormal voltage is detected between two adjacent detection terminals, the battery management system issues an alarm, and the maintenance personnel can remove and replace the single cells 210 between the corresponding two detection terminals. During actual detection, in order to improve the efficiency of detection, the number of single cells 210 between two adjacent detection terminals is kept consistent, that is, when the fuel cell group 200 is in normal condition, the normal voltage value range of each part is kept consistent, so as to facilitate timely detection of voltage abnormalities. To keep the number of single cells 210 between two adjacent detection terminals consistent, it is necessary to keep the distance between the connection ports corresponding to the detection terminals consistent. There is a first gap between the first end port 1112 and the first head port 1111 that belong to the two adjacent connectors 100, and the second head port 1211 of the connector 100 that is arranged at the rear of the two adjacent connectors 100 has the same width as the first gap and is aligned along the second direction.

[0066] Also, taking the number of single cells 210 between two adjacent detection terminals as two as an example, in the embodiment of the present application, Figure 2 and Figure 4As shown, the spacing between two adjacent single cells 210 is d0, and each first port 111 is connected to a connecting harness 300 to ensure that the number of single cells 210 between the two detection terminals is two within the coverage range of the connector 100. Therefore, the spacing between the center lines of two adjacent first ports 111 in the same connector 100 is d1=2*d0. There is a first gap between the first end port 1112 and the first head end port 1111 belonging to two connectors 100 and adjacent to each other. Therefore, the spacing between the center line of the first end port 1112 of the previous connector 100 and the center line of the first head end port 1111 of the next connector 100 can be d5=4*d0. In the same connector 100, the spacing between the center line of the second head end port 1211 and the center line of the first head end port 1111 is d3, and the spacing between the center lines of the two adjacent connectors 100 is d4=4*d0. 00, the distance between the center line of the first end port 1112 of the previous connector 100 and the center line of the second head end port 1211 of the rear connector 100 is d4, and the second head end port 1211 is the same as the width of the first gap and is aligned along the second direction, so d3=d4=2*d0. In this way, each connector 100 only needs to connect all the first ports 111 and the second head end port 1211 in the first connection part 110 to the connection harness 300 to meet the detection needs. The wiring method of each connector 100 remains consistent, which is conducive to improving the wiring efficiency. By setting the first gap, the layout space of the first head end edge area 112 and the first end edge area 113 is guaranteed. The width d6 of the first head end edge area 112 and the width d7 of the first end edge area 113 are both greater than the outer wall thickness w4 of the inspection connector 10 in the prior art. Of course, the quantitative relationship between the above-mentioned intervals needs to be adjusted according to the number of single cells 210 between the two detection terminals. The above-mentioned quantitative relationships are all exemplary illustrations for clearly describing the principle of the connector 100, and the embodiments of the present application do not impose any limitation on this.

[0067] In some possible implementations, see Figure 2 and Figure 4As shown, the first gap in the embodiment of the present application is the gap between the two adjacent sides of the first head end port 1111 and the first end port 1112. To avoid interference between the first head end edge region 112 and the first end edge region 113 when multiple connectors 100 are installed simultaneously, along the first direction, the sum of the width d6 of the first head end edge region 112 and the width d7 of the first end edge region 113 is less than or equal to the width d9 of the first gap. When the width d9 of the first gap is large, the sum of the width d6 of the first head end edge region 112 and the width d7 of the first end edge region 113 can be made slightly smaller than the width d9 of the first gap. In this way, a certain gap can be maintained between the first head end edge region 112 and the first end edge region 113, thereby retaining a certain installation operating space for the connector 100, avoiding wear between the first head end edge region 112 and the first end edge region 113 during installation of the connector 100, and facilitating improved installation efficiency of the connector 100.

[0068] Among them, the width of the first head edge area 112 and the width of the first tail edge area 113 can be equal or unequal. When they are equal, it is beneficial to ensure that the connector 100 is evenly stressed during the plugging and unplugging of the connection harness 300, reduce the risk of deformation, and improve the service life of the connector 100. They can also be set to be unequal according to the installation position of the connector 100 to optimize the spatial layout of the connector 100 and improve space utilization. The specific width can be reasonably set according to factors such as the structural shape and installation position of the connector 100, the size of the first port 111, etc., and the embodiments of the present application do not impose any restrictions on this.

[0069] In some possible implementations, see Figure 4 As shown, the fuel cell stack 200 of an embodiment of the present application includes a plurality of single cells 210 arranged at intervals along a first direction, and the plurality of single cells 210 constitute a plurality of modules to be inspected, each module to be inspected includes at least one single cell 210, and two adjacent detection terminals projected within a reference plane are respectively connected to the two sides of the same module to be inspected to detect the voltage of the module to be inspected, and the reference plane is parallel to the first direction.

[0070] It should be noted that the reference surface is Figure 2In the XY plane, the single cell 210 is set perpendicular to the reference plane, and the detection terminal is inserted between two adjacent modules to be inspected. The single cells 210 in the fuel cell group 200 are connected in series. Therefore, if any single cell 210 fails, it will affect the safe operation of the entire battery device. Therefore, the voltage at both ends of the module to be inspected is detected by two adjacent detection terminals, and the detection result is transmitted to the battery management system through the connecting harness 300. When the battery device fails, the battery management system can see the module to be inspected with abnormal voltage, and it can be determined that the failure occurred in the single cell 210 in the module to be inspected. The module to be inspected can be disassembled and replaced to quickly complete the maintenance of the battery device, which is conducive to quickly locating the position of the faulty single cell 210 and improving the maintenance efficiency of the battery device. Among them, the number of single cells 210 in the module to be inspected is not limited in the embodiment of the present application, and can be reasonably selected according to the voltage, thickness and spacing between adjacent single cells 210 of the single cell 210.

[0071] In some possible implementations, see Figure 4 As shown, at least part of the modules to be inspected in the embodiment of the present application includes two single cells 210 connected in series.

[0072] It is understandable that when the module to be inspected reports two or more single cells 210, when a single cell 210 fails, the specific faulty single cell 210 cannot be determined, and the module to be inspected can only be replaced as a whole. If there are too many single cells 210 in the module to be inspected, multiple single cells 210 need to be replaced at a time, resulting in higher maintenance costs for the battery device. If the modules to be inspected are all single cells 210, although the faulty single cell 210 can be accurately located, a large number of detection terminals are required, resulting in higher daily monitoring and maintenance costs for the battery device. Therefore, the module to be inspected can be set to two single cells 210. In this way, the accuracy of fault location can be guaranteed and the maintenance cost of the battery device can be saved.

[0073] In a specific implementation, the single cells 210 located at the ends of the fuel cell stack 200 are in greater contact with the external environment, have a lower temperature than the single cells 210 in the middle, and are more susceptible to higher current density due to connection resistance or contact problems. Therefore, the single cells 210 near the ends are more prone to failure. Therefore, the module to be inspected near the ends can be set to a single cell 210 to further improve the accuracy of fault location. Since the temperature of the single cells 210 in the middle is more uniform and the current distribution is more balanced, the probability of failure is relatively small. Therefore, the positioning accuracy can be appropriately reduced, and the module to be inspected can be set to two single cells 210, thereby saving the daily monitoring and maintenance costs of the battery device. Of course, the specific arrangement of the modules to be inspected is not limited in the embodiment of this application, and can be reasonably selected according to the actual structural characteristics of the battery device.

[0074] Therefore, in some possible implementations, see Figure 2 、 Figure 3 and Figure 4 As shown, the second connection portion 120 of the embodiment of the present application includes a plurality of second ports 121 arranged side by side along a first direction, and the plurality of second ports 121 include a second head port 1211 and a second tail port 1212 .

[0075] In particular, on the same connector 100, all second ports 121 except the second head-end port 1211 can be arranged on the first side of the second head-end port 1211, or on the second side of the second head-end port 1211. This embodiment of the present application does not impose any restrictions on this. It is only necessary to ensure that the second head-end port 1211 and the second end port 1212 are respectively located at the two ends of the plurality of second ports 121. In the following embodiments, the second ports 121 are explained as an example in which each second port 121 is located on the second side of the second head-end port 1211.

[0076] In specific implementation, in order to save the mold opening cost in actual production, all connectors 100 can be set to multiple second ports 121, and the number and position of the connection harness can be selected according to their corresponding positions. For example, the module to be inspected near the end of the fuel cell group 200 is set to a single cell 210, so all the first ports 111 and second ports 121 on the corresponding connector 100 need to be connected to the connection harness, and the module to be inspected located in the middle of the fuel cell group 200 is set to two single cells 210, so only the second head end port 1221 on the corresponding connector 100 needs to be connected to the connection harness.

[0077] At this time, the first connection part 110 is the main connection area, and the second connection part 120 is the auxiliary connection area. The second head port 1221 in each connector 100 needs to be plugged with a connecting harness. Except for the second head port 1221, other second ports can be plugged with connecting harnesses when the battery stack needs to increase the detection density. In this way, there is still no need to maintain a strict spacing between the second head port of the latter connector and the second end port of the previous connector, so as to ensure the thickness of the second head edge area and the second end edge area, thereby ensuring the structural strength of the connector.

[0078] Therefore, the distance d8 between the center line of the second head end port 1211 and the center line of the second end port 1212 in two adjacent connectors 100 is not restricted. For example, d8=3*d0, so that sufficient layout space can be reserved for the second head end edge area 122 and the second end edge area 123. Therefore, the connector 100 of the embodiment of the present application effectively improves the structural strength of the connector 100 and enhances the stability of the connector 100 without affecting the detection efficiency of the connector 100.

[0079] In some possible implementations, see Figure 2 、 Figure 3 and Figure 4 As shown, the multiple first ports 111 of the embodiment of the present application are arranged side by side and adjacent to each other, and among the multiple second ports 121, the remaining second ports 121 except the second head-end port 1211 are arranged side by side and adjacent to each other, the second head-end port 1211 is spaced apart from the remaining second ports 121, and any second port 121 except the second head-end port 1211 is opposite to two adjacent first ports 111, and the center line of the second port 121 constitutes a symmetry line of the two adjacent first ports 111.

[0080] Thus, except for the second head-end port 1211, the other second ports 121 are staggered with the first port 111. Since the thickness of the single battery 210 is relatively thin, when designing the spacing between the center lines of the two first ports 111 or the second ports 121, it is only necessary to consider the quantitative relationship between the spacing and the spacing between the two single batteries 210, without additionally increasing the number of single batteries 210. For example, when the spacing d1 between the center lines of two adjacent first ports 111 and the spacing d0 between the two single batteries 210 in the module to be inspected satisfy: d1 / d0=2, the spacing d2 between the center lines of the other second ports 121 except the second head-end port 1211 and the spacing d0 between the two single batteries 210 in the module to be inspected satisfy: d2 / d0=2, and the distance d10 between the center line of the adjacent first port 111 and the center line of the second port 121 is d0. When the module to be inspected includes only one single battery 210, all the first ports 111 and second ports 121 on the connector 100 can be connected to the connecting harness 300, so as to realize separate inspection of each single battery 210 and improve the accuracy of the inspection. When the module to be inspected includes two single batteries 210, each connector 100 only needs to connect the first port 111 and the second head end port 1211 to the connecting harness 300, and the other second ports 121 do not need to be wired. The wiring method is simple, which is conducive to improving wiring efficiency.

[0081] Therefore, the connector 100 of the embodiment of the present application can be adapted to different detection requirements and has high flexibility. Moreover, for the same detection requirements, when multiple connectors 100 are set, the wiring method of each connector 100 is consistent, which is beneficial to improving wiring efficiency and improving the orderliness of the connection harness 300.

[0082] In some possible implementations, see Figure 2 and Figure 4As shown, the distance d3 between the center line of the second head end port 1211 and the center line of the first head end port 1111 in the embodiment of the present application and the distance d0 between two single cells 210 in the module to be inspected satisfy: d3 / d0=2.

[0083] In this way, it can be ensured that when the first port 111 and the second head end port 1211 in the connector 100 are connected to the connecting harness 300, only the detection terminal connected to the harness starts working, and the distance between the two adjacent working detection terminals is d3, so that the number of single cells 210 in each module to be tested remains consistent, thereby improving the uniformity of detection.

[0084] In some possible implementations, see Figure 2 and Figure 4 As shown, the multiple modules to be inspected in the embodiment of the present application include several first-type modules to be inspected, each of which includes a single cell 210, and multiple connectors 100 arranged along the first direction include a head-end connector 130. Each first port 111 in the head-end connector 130 is provided with a first detection terminal, and each second port 121 is provided with a second detection terminal. Two adjacent first detection terminals and second detection terminals are used to detect the voltage of a first-type module to be inspected.

[0085] In a specific implementation, the first type of module to be inspected is located at two opposite ends of the fuel cell group 200 along the first direction. The single cells 210 close to the ends of the fuel cell group 200 along the first direction are in more contact with the external environment, and have a lower temperature than the single cells 210 in the middle, and are more likely to withstand higher current density due to connection resistance or contact problems. Therefore, the single cells 210 close to the ends have a higher probability of failure. Therefore, the single cells 210 close to the ends are formed into the first type of module to be inspected, which is beneficial to improving the accuracy of fault monitoring of the end single cells 210. The connector 100 used to detect the first type of module to be inspected is the head-end connector 130, and each first port 111 and second port 121 on the head-end connector 130 are connected to the wiring harness to detect the voltage across each single cell 210.

[0086] In some embodiments, several dummy batteries 220 can also be set at the end of the fuel cell group 200. The dummy batteries 220 and the single cells 210 are integrated into a fuel cell stack. The dummy batteries 220 can play a certain protective role for the single cells 210, reduce the heat dissipation loss of the end single cells 210, balance the current density, and help to improve the service life of the battery device. The dummy batteries 220 are consistent in shape with the single cells 210. Therefore, when the head-end connector 130 is installed, the single cells 210 on the connector 100 corresponding to the dummy batteries 220 do not play a detection role, but only play a certain limiting role in the structure.

[0087] In some possible implementations, see Figure 2 and Figure 4 As shown, the multiple modules to be inspected in the embodiment of the present application also include several second-type modules to be inspected. The second-type modules to be inspected each include two single-cell batteries 210 connected in series. Among the remaining connectors 100 except the head-end connector 130, the first port 111 of each connector 100 is provided with a first detection terminal, and the second head-end port 1211 is provided with a second detection terminal. The two adjacent first detection terminals are used to detect the voltage of a second-type module to be inspected, and each second detection terminal and the adjacent first detection terminal are used to detect the voltage of a second-type module to be inspected.

[0088] It can be understood that since the temperature of the single cells 210 in the middle of the fuel cell group 200 is more uniform, the current distribution is more balanced, and the probability of failure is relatively small, the positioning accuracy can be appropriately reduced, and the two adjacent single cells 210 located in the middle are formed into a second type of module to be inspected, thereby saving the daily monitoring and maintenance costs of the battery device. The head end connector 130 is arranged at the two opposite ends of the fuel cell group 200 along the first direction, and the remaining connectors 100 are located between the two head end connectors 130, corresponding to the second type of module to be inspected. At this time, it is only necessary to connect the second head end port 1211 of the connector 100 to each first port 111 to the connecting harness 300. The wiring method is consistent, which is conducive to improving the wiring efficiency of the connector 100.

[0089] See also Figure 4 As shown, an embodiment of the present application provides a battery device, including: a fuel cell group 200 and any of the above-mentioned stack inspection connectors 100, the fuel cell group 200 includes a plurality of single cells 210 arranged at intervals along a first direction; the stack inspection connector 100 is used to detect the voltage of the single cell 210.

[0090] Among them, the specific structure and working principle of the connector 100 for stack inspection have been described in detail in the above embodiments and will not be repeated here.

[0091] In the embodiment of the present application, the stack inspection connector 100 can be stably fixed to the fuel cell stack 200, performing real-time monitoring and detection of the voltage of the individual cells 210, and transmitting the detection results to the battery management system via the connection harness 300. The connector 100 of the embodiment of the present application has high structural strength, which helps to improve the overall stability of the battery device. The connector 100 continues to operate stably, which helps to improve the safety and reliability of the battery device. In addition, with the exception of the head-end connector 130, the wiring methods of the other connectors 100 are consistent, which has high wiring efficiency and helps to improve the orderliness of the connection harness 300 within the electrical equipment.

[0092] An embodiment of the present application provides an electrical device including the above-mentioned battery device.

[0093] In the embodiment of the present application, the electrical equipment can be an electric vehicle, a fuel cell train, a ship, an aircraft, etc., and the embodiment of the present application does not limit this. The battery device is connected to the battery management system of the electrical equipment. When the battery fails, the battery management system can send an alarm message in time to remind the user to check or repair it in time, which is conducive to improving the safety and reliability of the electrical equipment.

[0094] In summary, the embodiment of the present application provides a connector 100 for stack inspection, a battery device and an electrical device, wherein the battery device has a fuel cell group 200, the fuel cell group 200 includes a plurality of single cells 210 and a dummy battery 220 located at the end of the fuel cell group 200, the dummy battery 220 and the single cell 210 are integrated into a stack along a first direction, the connector 100 is set to be multiple along the first direction, and the connector 100 located at the end along the first direction is a head end connector 130, the detection terminal of each connector 100 is inserted between two adjacent single cells 210, and all the first ports 111 and the second ports 121 on the head end connector 130 are connected to the connection The wiring harness 300 is used to detect the voltage across the first type of module to be inspected. All first ports 111 and second head-end ports 1211 of other connectors 100 are connected to the wiring harness 300 to detect the voltage across the second module to be inspected. The wiring harness 300 is electrically connected to the battery management system of the electrical equipment and transmits the detection results to the battery management system to monitor the module to be inspected. At the same time, there is sufficient gap between each connector 100, thereby providing sufficient layout space for the first head-end edge area 112, the first end edge area 113, the second head-end edge area 122 and the second end edge area 123 to ensure the structural strength of the connector 100. Therefore, the connector 100 for battery stack inspection of the embodiment of the present application can detect the first type of module to be inspected and the second type of module to be inspected while ensuring the structural strength of the connector 100, and has strong flexibility. At the same time, the wiring methods of other connectors 100 except the head-end connector 130 remain consistent, which is conducive to improving the wiring efficiency of the connector 100 and the orderliness of the wiring harness 300 in the electrical equipment.

[0095] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention is within the protection scope of the present invention.

[0096] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0097] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0098] The terms "first," "second," "third," "fourth," and so on (if any) in the description and claims of the embodiments of the present application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein.

[0099] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0100] It will be understood that the various numerical numbers involved in the embodiments of the present application are merely distinctions for the convenience of description and are not intended to limit the scope of the embodiments of the present application.

[0101] It can be understood that in the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the 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 the present application.

[0102] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0103] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A connector (100) for stack inspection, used for a fuel cell stack (200), characterized in that: include: A first connecting portion (110) comprising a plurality of first ports (111) arranged side by side along a first direction, and a first head end edge region (112) and a first end edge region (113) located on a first side and a second side of the plurality of first ports (111) along the first direction, wherein the plurality of first ports (111) comprise a first head end port (1111) and a first end port (1112); A second connecting portion (120) is connected to one side of the first connecting portion (110) along the second direction, the second connecting portion (120) comprising a second head end port (1211), and a second head end edge region (122) located on a first side and a second end edge region (123) on a second side of the second head end port (1211) along the first direction; Wherein, on the first side, the second connection portion (120) protrudes from the first connection portion (110) to form a first avoidance space (114) on the first side of the first connection portion (110); on the second side, the first connection portion (110) protrudes from the second connection portion (120) to form a second avoidance space (124) on the second side of the second connection portion (120); When a plurality of the connectors (100) are arranged along the first direction, each of the first avoidance spaces (114) is suitable for accommodating the second end of the first connecting portion (110) of an adjacent connector (100), and each of the second avoidance spaces (124) is suitable for accommodating the first end of the second connecting portion (120) of an adjacent connector (100). The first port (111) and the second head end port (1211) are both suitable for connecting to a detection terminal, and belong to two of the connectors (100). A first gap is provided between the adjacent first end port (1112) and the first head end port (1111), and the second head end port (1211) of the connector (100) arranged closer to the rear of the two adjacent connectors (100) has the same width as the first gap and is aligned along the second direction.

2. The connector (100) for stack inspection according to claim 1, characterized in that: The second connecting portion (120) comprises a plurality of second ports (121) arranged side by side along the first direction, and the plurality of second ports (121) comprise the second head end port (1211) and the second tail end port (1212).

3. The connector (100) for stack inspection according to claim 1, characterized in that: Along the first direction, the sum of the widths of the first head edge region (112) and the first tail edge region (113) is less than or equal to the width of the first gap.

4. The connector (100) for stack inspection according to claim 3, characterized in that: The width of the first head edge region (112) is equal to or different from the width of the first tail edge region (113).

5. The connector (100) for stack inspection according to claim 2, characterized in that: The fuel cell stack (200) comprises a plurality of single cells (210) spaced apart along a first direction, the plurality of single cells (210) forming a plurality of modules to be inspected, each module to be inspected comprising at least one single cell (210). Two detection terminals with adjacent projections on a reference plane are respectively connected to two sides of the same module to be detected to detect the voltage of the module to be detected. The reference plane is parallel to the first direction.

6. The connector (100) for stack inspection according to claim 5, characterized in that: At least part of the modules to be inspected include two single cells (210) connected in series.

7. The connector (100) for stack inspection according to claim 6, characterized in that: A plurality of the first ports (111) are arranged side by side and adjacent to each other, Among the plurality of second ports (121), the remaining second ports (121) except the second head end port (1211) are arranged side by side and adjacent to each other, and the second head end port (1211) and the remaining second ports (121) are spaced apart. Any second port (121) except the second head port (1211) is opposite to two adjacent first ports (111), and the center line of the second port (121) constitutes a symmetry line of the two adjacent first ports (111).

8. The connector (100) for stack inspection according to claim 7, characterized in that: The spacing d1 between the center lines of two adjacent first ports (111) and the spacing d0 between two single cells (210) in the module to be inspected satisfy the following relationship: d1 / d0=2.

9. The connector (100) for stack inspection according to claim 7, characterized in that: Among the plurality of second ports (121), a spacing d2 between center lines of the remaining second ports (121) except the second head port (1211) and a spacing d0 between two single cells (210) in the module to be inspected satisfy: d2 / d0=2.

10. The connector (100) for stack inspection according to claim 7, characterized in that: The distance d3 between the center line of the second head end port (1211) and the center line of the first head end port (1111) and the distance d0 between the two single cells (210) in the module to be inspected satisfy: d3 / d0=2.

11. The connector (100) for stack inspection according to claim 7, characterized in that: The plurality of modules to be inspected include a plurality of first-type modules to be inspected, each of the first-type modules to be inspected includes a single battery (210). The plurality of connectors (100) arranged along the first direction include a head-end connector (130), each of the first ports (111) in the head-end connector (130) is provided with a first detection terminal, and each of the second ports (121) is provided with a second detection terminal. Two adjacent first detection terminals and the second detection terminals are used to detect the voltage of a first type of module to be detected.

12. The connector (100) for stack inspection according to claim 11, characterized in that: The plurality of modules to be inspected further include a plurality of second-type modules to be inspected, each of which includes two of the single cells (210) connected in series. In the remaining connectors (100) except the head-end connector (130), the first port (111) of each connector (100) is provided with a first detection terminal, and the second head-end port (1211) is provided with a second detection terminal. Two adjacent first detection terminals are used to detect the voltage of a second type of module to be detected, and each of the second detection terminals and the adjacent first detection terminal are used to detect the voltage of a second type of module to be detected.

13. A battery device, characterized in that: include: A fuel cell stack (200) comprising a plurality of single cells (210) spaced apart along a first direction; The battery stack inspection connector (100) according to any one of claims 1 to 12, wherein the battery stack inspection connector (100) is used to detect the voltage of the single battery (210).

14. An electrical device, characterized in that: A battery device comprising the battery device of claim 12.

Images