Electric pile voltage inspection device

Abstract

The invention relates to the technical field of fuel cell detection, in particular to an electric pile voltage inspection device which comprises a hobbing voltage detection mechanism, a guide rail mechanism, a support and a controller. The hobbing voltage detection mechanism comprises a rolling disc and a plurality of floating tooth assemblies, the plurality of floating tooth assemblies are arranged on the cylindrical surface of the rolling disc in a circumferential array manner, and the floating tooth assemblies are used for contacting a pole plate of a galvanic pile; the guide rail mechanism comprises a guide rail and a sliding assembly, the sliding assembly is slidably arranged on the guide rail, a rotating shaft is arranged on the sliding assembly, and the rolling disc is detachably and rotatably connected with the rotating shaft; the two supports are arranged at the two ends of the guide rail and used for supporting the guide rail. The device has the advantages that the hobbing voltage detection mechanism is arranged to roll on the electric pile, and the floating tooth assembly on the hobbing voltage detection mechanism is in contact with a polar plate of the electric pile, so that the voltage of the single fuel cell is rapidly detected.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cell detection, and in particular to a fuel cell stack voltage inspection device. Background Art

[0002] The proton exchange membrane fuel cell stack is composed of multiple single cells. In many scenarios, such as the activation process after the assembly of multiple cells, the consistency test of the single cells before leaving the factory, and the repair, the single cells of the stack need to be tested to prevent quality accidents such as low voltage and short circuit. Since a large stack can have more than 500 cells, the voltage inspection of the single cell is a time-consuming and labor-intensive task, and it is very easy to make mistakes.

[0003] Generally, the voltage of a single cell of a battery stack is measured and recorded manually with a multimeter, or by connecting a contact-type cell voltage probe (CVP) to a cell voltage monitoring system (CVM). When measuring manually, errors are easy to occur due to the large number of cells. When measuring the voltage of a single cell through a cell voltage monitoring system (CVM), since each plate is connected to a cell voltage probe (CVP), the CVP is connected to the CVM through wires and terminals, and there are many cables and terminals, which is time-consuming to install. The voltage signal is collected through multiple components, and poor contact may cause inaccurate voltage detection during the voltage signal transmission process. At the same time, when an abnormal voltage of a single cell is detected, the problematic cell needs to be manually marked, which is troublesome. Summary of the invention

[0004] The purpose of the present invention is to overcome at least one disadvantage of the above-mentioned prior art and provide a stack voltage inspection device.

[0005] The purpose of the present invention is achieved through the following technical solutions: A stack voltage inspection device, comprising:

[0006] A gear rolling voltage detection mechanism, comprising a rolling disk and a floating tooth assembly, wherein a plurality of floating tooth assemblies are arranged in a circumferential array on the cylindrical surface of the rolling disk, and the floating tooth assembly is used to contact the electrode plate of the battery stack;

[0007] A guide rail mechanism, the guide rail mechanism comprises a guide rail and a sliding assembly, the sliding assembly is slidably arranged on the guide rail, a rotating shaft is arranged on the sliding assembly, and the rolling plate is detachably rotatably connected to the rotating shaft;

[0008] A bracket, wherein two brackets are respectively arranged at two ends of the guide rail for supporting the guide rail;

[0009] A controller, wherein the plurality of floating teeth are electrically connected to the controller.

[0010] The present invention arranges a rolling gear voltage detection mechanism on a guide rail mechanism. When measuring the voltage of a single battery, the battery stack is placed under the guide rail, and the stacking direction of the battery stack is in the same direction as the guide rail. The floating tooth assembly of the rolling gear voltage detection mechanism contacts the electrode plate of the single battery, and two adjacent floating tooth assemblies contact two adjacent electrode plates respectively. The voltage signal between the two electrode plates is transmitted to the controller, and the voltage of the single battery is measured. By moving the sliding assembly, the rolling gear voltage detection mechanism rolls on the battery stack, so that several floating tooth assemblies contact the electrode plates in the stacking direction of the battery stack in turn, and the voltage of all single batteries can be quickly measured.

[0011] In some embodiments, the floating tooth assembly includes an elastic component and a floating tooth, and a sliding portion is provided at one end of the floating tooth;

[0012] A plurality of slide grooves are arranged on the cylindrical surface of the rolling disk along the radial direction of the rolling disk, the sliding part of the floating tooth assembly is slidably arranged in the slide groove, the elastic component is arranged at the bottom of the slide groove and abuts against the sliding part, and the floating tooth protrudes from the cylindrical surface of the rolling disk through the opening at the top of the slide groove. The floating tooth is slidably connected to the rolling disk through the sliding part on the floating tooth, so that the rolling gear voltage detection mechanism can roll normally on the battery stack.

[0013] In some embodiments, the end surface of the floating tooth protruding from the cylindrical surface of the rolling disk is set as a convex arc surface. The contact surface of the floating tooth with the stack plate is set as a convex arc surface, so that the contact between the floating tooth and the plate is more stable during the rolling process of the gear rolling voltage detection mechanism.

[0014] In some embodiments, the sliding assembly includes a slide plate and a connecting member, the slide plate is slidably connected to the guide rail, the connecting member is fixedly connected to the bottom of the slide plate, the rotating shaft is horizontally arranged on one side of the connecting member, and the rolling plate is detachably connected to the rotating shaft. By arranging the slide plate and the connecting member, the gear rolling voltage detection mechanism can slide along the guide rail.

[0015] In some embodiments, a handle is provided on the slide plate or the connecting member. By providing the handle on the slide plate or the connecting member, an operator can manually push the gear rolling voltage detection mechanism to slide along the guide rail to perform voltage detection operation.

[0016] In some embodiments, the support comprises a support body and a lifting drive mechanism;

[0017] A slide rail is vertically arranged on one side of the bracket body, a slide table is slidably connected to the slide rail, and an end of the guide rail is connected to the slide table;

[0018] The lifting drive mechanism includes a first motor, a first screw and a first screw nut, the two ends of the first screw are rotatably connected to the top and bottom of the bracket body respectively, the first screw is parallel to the slide rail, the first motor is arranged at the top of the bracket body, the power output shaft of the first motor is transmission-connected to the first screw, the first screw nut is fixedly arranged on the slide, the first screw is threadedly connected to the first screw nut, and the first motor is electrically connected to the controller. By setting up the lifting drive mechanism, the guide rail and the gear rolling voltage detection mechanism can adjust their own height to adapt to more sizes and models of battery stacks, thereby improving the applicability of the device.

[0019] In some embodiments, the guide rail includes a guide rail body and a mounting beam, the two ends of the mounting beam are respectively connected to the slides on the two brackets, and the guide rail is fixedly arranged at the bottom of the mounting beam along the direction of the mounting beam. The guide rail is connected to the slide through the mounting beam.

[0020] In some embodiments, a diagonal brace reinforcement is provided on one side of the bottom of the bracket body, so as to make the bracket more stable.

[0021] In some embodiments, an inkjet marking mechanism is further included, the inkjet marking mechanism is disposed on the sliding assembly, and the inkjet marking mechanism is electrically connected to the controller. The inkjet marking mechanism is provided so that when the hobbing voltage detection mechanism detects an abnormal voltage between adjacent plates, the corresponding membrane electrode can be marked by the inkjet marking mechanism.

[0022] In some embodiments, a rolling drive mechanism is also included, which includes a second screw, a second motor and a second screw nut, the two ends of the second screw are respectively connected to the slides on the two brackets, the second screw is parallel to the guide rail, the second motor is fixedly arranged on one of the slides, the power output shaft of the second motor is connected to the second screw in a transmission manner, the sliding assembly is fixedly provided with a second screw nut, the second screw nut is threadedly connected to the second screw, and the second motor is electrically connected to the controller. The rolling drive mechanism is used to realize automatic rolling of the gear hobbing voltage detection mechanism.

[0023] The present invention has the following advantages:

[0024] The present invention provides a gear rolling voltage detection mechanism, which is made to roll on the battery stack. The floating gears on the gear rolling voltage detection mechanism contact the plates of the battery stack to quickly detect the voltage of the battery stack cells, thereby realizing a rapid voltage detection function. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a stack voltage inspection device according to a first embodiment of the present invention;

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0028] Figure 4 This is a schematic diagram of the back structure of the stack voltage inspection device according to the first embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the use process of the stack voltage inspection device according to the first embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the back structure of the battery stack voltage inspection device according to the second embodiment of the present invention;

[0031] In the figure: 1. gear rolling voltage detection mechanism; 11. rolling plate; 111. slide groove; 12. floating tooth assembly; 121. floating tooth; 122. elastic component; 2. guide rail mechanism; 21. guide rail; 211. mounting beam; 212. guide rail body; 22. sliding assembly; 221. slide plate; 222. connector; 23. handle; 3. bracket; 31. bracket body; 311. slide rail; 312. slide table; 32. lifting drive mechanism; 321. first motor; 322. first screw rod; 4. diagonal support reinforcement; 5. inkjet marking mechanism; 61. second motor; 62. second screw rod; 63. second screw rod nut. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0034] Embodiment 1:

[0035] like Figure 1-Figure 5 As shown, a stack voltage inspection device includes:

[0036] A gear rolling voltage detection mechanism 1, comprising a rolling disk 11 and a floating tooth assembly 12, wherein a plurality of floating tooth assemblies 12 are arranged in a circumferential array on the cylindrical surface of the rolling disk 11, and the floating tooth assembly 12 is used to contact the electrode plates of the battery stack;

[0037] A guide rail mechanism 2, wherein the guide rail mechanism 2 comprises a guide rail 21 and a sliding assembly 22, wherein the sliding assembly 22 is slidably disposed on the guide rail 21, and a rotating shaft is disposed on the sliding assembly 22, and the rolling plate 11 is detachably rotatably connected to the rotating shaft;

[0038] Brackets 3, two brackets 3 are respectively arranged at two ends of the guide rail 21 for supporting the guide rail 21;

[0039] A controller, wherein the plurality of floating teeth 121 are electrically connected to the controller.

[0040] Specifically, in this embodiment, the controller is arranged inside the floating plate. The floating plate is rotatably sleeved on the rotating shaft, and the end of the rotating shaft is threadedly connected with a limit bolt to facilitate the replacement of the gear rolling voltage detection mechanism 1 of different sizes after the gear rolling voltage detection mechanism 1 is disassembled. The floating teeth 121 are made of conductive materials such as metal, and the rolling plate 11 is made of insulating material.

[0041] During the use of this embodiment, the staff pushes the rolling disk 11, so that the rolling disk 11 rolls on the surface of the battery stack under the guidance of the guide rail mechanism 2, and the floating tooth assembly 12 contacts the electrode plate on the battery stack. When the two floating tooth assemblies 12 contact two adjacent electrode plates respectively, the two floating tooth assemblies 12 collect the voltage between the two electrode plates and transmit the voltage to the controller, which collects and records the voltage and uploads it to the host computer. As the rolling disk 11 rolls, the floating tooth assemblies 12 on the rolling disk 11 contact the electrode plates on the battery stack in turn, and measure the voltage of the adjacent electrode plates, that is, the voltage of the single battery, in turn. The measurement process is fast and convenient.

[0042] Preferably, the floating tooth assembly 12 comprises an elastic component 122 and a floating tooth 121, and a sliding portion is provided at one end of the floating tooth 121;

[0043] A plurality of slide grooves 111 are arranged on the cylindrical surface of the rolling disk 11 along the radial direction of the rolling disk 11, and the sliding part of the floating tooth assembly 12 is slidably arranged in the slide groove 111. The elastic component 122 is arranged at the bottom of the slide groove 111 and abuts against the sliding part. The floating tooth 121 protrudes from the cylindrical surface of the rolling disk 11 through the opening at the top of the slide groove 111.

[0044] Specifically, in the present embodiment, the elastic component 122 is a spring, and in some other embodiments, the elastic component 122 can also be rubber or the like; the opening size of the slide groove 111 is smaller than the cross-sectional area of ​​the sliding portion to prevent the sliding portion from falling off the slide groove 111, and through the elastic component 122, the floating tooth 121 can retract into the slide groove 111 when contacting the electrode plate, so that the rolling disk 11 can roll normally on the battery stack, and the floating tooth 121 has a certain elastic force when contacting the electrode plate, so that the floating tooth 121 is in stable contact with the electrode plate to avoid poor contact.

[0045] Preferably, the end surface of the floating tooth 121 protruding from one end of the cylindrical surface of the rolling disk 11 is configured as an outwardly convex arc surface.

[0046] The end surface of the floating tooth 121 for contacting the electrode plate is set as a convex arc surface, so that when the floating tooth 121 contacts the electrode plate, the contact area can be increased, and the contact between the floating tooth 121 and the electrode plate can be stable.

[0047] Preferably, the sliding assembly 22 includes a slide plate 221 and a connecting member 222, the slide plate 221 is slidably connected to the guide rail 21, the connecting member 222 is fixedly connected to the bottom of the slide plate 221, the rotating shaft is horizontally arranged on one side of the connecting member 222, and the rolling disk 11 is detachably rotatably connected to the rotating shaft.

[0048] In this embodiment, a rotating shaft is horizontally arranged on one side of the connecting member 222 along a direction perpendicular to the sliding direction of the slide plate 221 , and the gear rolling voltage detection mechanism 1 rolls while following the sliding of the slide plate 221 .

[0049] Preferably, a handle 23 is provided on the slide plate 221 or the connecting member 222. In this embodiment, the handle 23 is provided on the slide plate 221, and in some other embodiments, the handle 23 is provided on the connecting member 222.

[0050] Preferably, the support 3 includes a support body 31 and a lifting drive mechanism 32;

[0051] A slide rail 311 is vertically arranged on one side of the bracket body 31, a slide table 312 is slidably connected to the slide rail 311, and an end of the guide rail 21 is connected to the slide table 312;

[0052] The lifting drive mechanism 32 includes a first motor 321, a first screw rod 322 and a first screw rod nut. The two ends of the first screw rod 322 are rotatably connected to the top and bottom of the bracket body 31 respectively. The first screw rod 322 is parallel to the slide rail 311. The first motor 321 is arranged at the top of the bracket body 31. The power output shaft of the first motor 321 is transmission-connected to the first screw rod 322. The first screw rod nut is fixedly arranged on the slide 312. The first screw rod 322 is threadedly connected to the first screw rod nut. The first motor 321 is electrically connected to the controller.

[0053] Specifically, when this embodiment is in use, the controller controls the first motor 321 to rotate the first screw rod 322, and the first screw rod 322 drives the first screw rod nut to move up and down, thereby driving the slide 312 to move up and down, thereby achieving the function of adjusting the height of the guide rail 21, so that the device can measure the voltage of battery stacks of different sizes and models, thereby improving the applicability of the device.

[0054] Preferably, the guide rail 21 includes a guide rail body 212 and a mounting beam 211 , both ends of the mounting beam 211 are respectively connected to the slides 312 on the two brackets 3 , and the guide rail 21 is fixedly arranged at the bottom of the mounting beam 211 along the direction of the mounting beam 211 .

[0055] The installation beam 211 is provided to prevent the guide rail body 212 from being subjected to bending moment, thereby preventing the guide rail 21 from being deformed. The slide plate 221 is slidably connected to the guide rail body 212.

[0056] Preferably, a diagonal brace reinforcement member 4 is provided at one side of the bottom of the bracket body 31 . The diagonal brace reinforcement member 4 improves the stability of the bracket body 31 .

[0057] Preferably, it also includes an inkjet marking mechanism 5, which is arranged on the sliding assembly 22 and is electrically connected to the controller. The inkjet marking mechanism 5 is a common component for those skilled in the art, and its structure is not described here. The model of the inkjet marking mechanism 5 in this embodiment is XJET of Markoprint.

[0058] In this embodiment, an electric slip ring is provided on the rotating shaft, and the controller in the rolling disk 11 is electrically connected to the first motor 321, the inkjet marking mechanism 5 and the host computer through the electric slip ring. When the controller detects that the voltage between the two plates is abnormal, it sends a signal to the inkjet marking mechanism 5, so that the inkjet marking mechanism 5 sprays ink onto the membrane electrode between the two plates to mark the single cell with abnormal voltage. In this embodiment, the nozzle of the inkjet marking mechanism 5 is set at the bottom of the axis of the rotating shaft, so that the nozzle is always aligned with the single cell being tested.

[0059] Embodiment 2:

[0060] like Figure 6 As shown, the difference between this embodiment and the first embodiment is that, in this embodiment, it also includes a rolling drive mechanism, which includes a second screw rod 62, a second motor 61 and a second screw rod nut 63, the two ends of the second screw rod 62 are respectively rotatably connected to the slides 312 on the two brackets 3, the second screw rod 62 is parallel to the guide rail 21, the second motor 61 is fixedly arranged on one of the slides 312, the power output shaft of the second motor 61 is transmission-connected to the second screw rod 62, the sliding assembly 22 is fixedly provided with a second screw rod nut 63, the second screw rod nut 63 is threadedly connected to the second screw rod 62, and the second motor 61 is electrically connected to the controller.

[0061] Specifically, in this embodiment, the controller controls the second motor 61 to rotate, and the second motor 61 drives the second screw 62 to rotate, and then drives the second screw nut 63 to push the connecting member 222 to rotate, so that the gear rolling voltage detection mechanism 1 automatically moves along the guide rail 21 in the horizontal direction, making the measurement process more convenient.

[0062] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above-mentioned technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. A stack voltage inspection device, characterized in that: include: A rolling gear voltage detection mechanism (1) comprises a rolling disc (11) and a floating tooth assembly (12), wherein a plurality of floating tooth assemblies (12) are arranged in a circumferential array on a cylindrical surface of the rolling disc (11), and the floating tooth assembly (12) is used to contact a pole plate of a battery stack; A guide rail mechanism (2), the guide rail mechanism (2) comprising a guide rail (21) and a sliding assembly (22), the sliding assembly (22) being slidably arranged on the guide rail (21), a rotating shaft being arranged on the sliding assembly (22), and the rolling plate (11) being detachably rotatably connected to the rotating shaft; A bracket (3), wherein two brackets (3) are respectively arranged at two ends of the guide rail (21) for supporting the guide rail (21); A controller, wherein the plurality of floating teeth (121) are electrically connected to the controller.

2. A stack voltage inspection device according to claim 1, characterized in that: The floating tooth assembly (12) comprises an elastic component (122) and a floating tooth (121), and a sliding portion is provided at one end of the floating tooth (121); A plurality of slide grooves (111) are arranged on the cylindrical surface of the rolling disk (11) along the radial direction of the rolling disk (11); the sliding portion of the floating tooth assembly (12) is slidably arranged in the slide groove (111); the elastic component (122) is arranged at the bottom of the slide groove (111) and abuts against the sliding portion; the floating tooth (121) protrudes from the cylindrical surface of the rolling disk (11) through an opening at the top of the slide groove (111).

3. A stack voltage inspection device according to claim 2, characterized in that: The end surface of the floating tooth (121) protruding from one end of the cylindrical surface of the rolling disk (11) is configured as an outwardly convex arc surface.

4. The stack voltage inspection device according to claim 1, characterized in that: The sliding assembly (22) comprises a slide plate (221) and a connecting member (222), wherein the slide plate (221) is slidably connected to the guide rail (21), the connecting member (222) is fixedly connected to the bottom of the slide plate (221), the rotating shaft is horizontally arranged on one side of the connecting member (222), and the rolling plate (11) is detachably rotatably connected to the rotating shaft.

5. The stack voltage inspection device according to claim 4, characterized in that: The slide plate (221) or the connecting member (222) is provided with a handle (23).

6. The stack voltage inspection device according to claim 1, characterized in that: The support (3) comprises a support body (31) and a lifting drive mechanism (32); A slide rail (311) is vertically arranged on one side of the bracket body (31), a slide platform (312) is slidably connected to the slide rail (311), and an end of the guide rail (21) is connected to the slide platform (312); The lifting drive mechanism (32) comprises a first motor (321), a first screw rod (322) and a first screw rod nut. The two ends of the first screw rod (322) are rotatably connected to the top and bottom of the support body (31) respectively. The first screw rod (322) is parallel to the slide rail (311). The first motor (321) is arranged at the top of the support body (31). The power output shaft of the first motor (321) is transmission-connected to the first screw rod (322). The first screw rod nut is fixedly arranged on the slide (312). The first screw rod (322) is threadedly connected to the first screw rod nut. The first motor (321) is electrically connected to the controller.

7. The stack voltage inspection device according to claim 6, characterized in that: The guide rail (21) comprises a guide rail body (212) and a mounting beam (211); two ends of the mounting beam (211) are respectively connected to slides (312) on two brackets (3); and the guide rail (21) is fixedly arranged at the bottom of the mounting beam (211) along the direction of the mounting beam (211).

8. The stack voltage inspection device according to claim 6, characterized in that: A diagonal bracing reinforcement member (4) is provided on one side of the bottom of the bracket body (31).

9. The stack voltage inspection device according to claim 1, characterized in that: It also comprises an inkjet marking mechanism (5), wherein the inkjet marking mechanism (5) is arranged on the sliding component (22), and the inkjet marking mechanism (5) is electrically connected to the controller.

10. The stack voltage inspection device according to claim 6, characterized in that: The invention also comprises a rolling drive mechanism, which comprises a second screw rod (62), a second motor (61) and a second screw rod nut (63); the two ends of the second screw rod (62) are respectively rotatably connected to the slides (312) on the two brackets (3); the second screw rod (62) is parallel to the guide rail (21); the second motor (61) is fixedly arranged on one of the slides (312); the power output shaft of the second motor (61) is transmission-connected to the second screw rod (62); a second screw rod nut (63) is fixedly arranged on the sliding assembly (22); the second screw rod nut (63) is threadedly connected to the second screw rod (62); and the second motor (61) is electrically connected to the controller.

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