CN212031676U

CN212031676U - Inspection assembly for fuel cell voltage and fuel cell comprising same

Info

Publication number: CN212031676U
Application number: CN201922363039.0U
Authority: CN
Inventors: 喻亚航; 李骏
Original assignee: Shanghai Shen Li High Tech Co Ltd
Current assignee: Shanghai Shenli Technology Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-11-27
Anticipated expiration: 2029-12-25

Abstract

The utility model provides a fuel cell who is used for patrolling and examining subassembly and including this subassembly of fuel cell voltage, a patrol and examine subassembly includes for fuel cell voltage: a plurality of eyelets having legs; the PCB board is provided with a plurality of fixing holes, and the support leg of each metal ring is inserted into the fixing holes. According to the assembly of patrolling and examining of this application, whole easy dismounting is convenient for the maintenance of fuel cell pile. And moreover, after the formed metal rings and the PCB are integrally welded, the deviation of the appearance and the height is small, the metal rings are in contact with a fuel cell polar plate, the stress of each metal ring is uniform, and the acquired signals are relatively stable.

Description

Inspection assembly for fuel cell voltage and fuel cell comprising same

Technical Field

The utility model relates to a fuel cell field, in particular to an assembly of patrolling and examining for fuel cell voltage.

Background

The fuel cell is a clean energy technology for directly converting chemical energy into electric energy, has the advantages of high energy conversion efficiency, simple structure, low emission, low noise and the like, is commonly used for power systems of vehicles, ships and other vehicles, and can also be used as a mobile or fixed power station. A fuel cell stack is generally formed by stacking and fastening a plurality of bipolar plates and a membrane electrode one by one through a positioning tool, a cell voltage inspection system is a device for monitoring the health state of a cell, and comprises a voltage collector, an inspection wire harness and an inspection connecting end on the bipolar plates, when the fuel cell has a fault problem, which cell has the problem can be accurately judged through a signal on the voltage collector, so that countermeasures can be taken in time, and the rapid deterioration of the performance of the cell is avoided; the accurate monitoring of each single battery voltage is the prerequisite of guaranteeing the safe and reliable operation of galvanic pile, so the reliable connection of voltage system of patrolling and examining and each single section battery plays very crucial effect.

The existing fuel cell voltage detection design mainly comprises welding, conductive adhesive, probes, pins and the like. The polar plates on both sides of the fuel cell electrode (MEA) mainly have two forms in the market, one is a metal polar plate, and the other is a graphite polar plate; the metal polar plate is mostly welded in a mode of reading an electric signal, and is in a pin insertion mode; the electrical signal reading mode of the graphite polar plate is mostly a conductive adhesive coating mode and a probe mode.

However, the pin and welding method are mainly used for the metal plate, and the disadvantage is that the metal plate is only suitable for use, but not suitable for the graphite plate. The conductive adhesive and the probe are mainly used on a graphite polar plate, and have the defects that the conductive adhesive is disposable, the conductive adhesive needs to be scraped when the polar plate is overhauled or replaced, the probe has the requirement of verticality, and the probe is easy to lose efficacy when the polar plate is assembled with an offset.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a patrol and examine subassembly for fuel cell voltage can gather the signal steadily through this subassembly of patrolling and examining to whole easy dismounting.

In order to achieve the above object, the present application provides an inspection module for a fuel cell voltage, comprising: a plurality of eyelets having legs; the PCB board is provided with a plurality of fixing holes, and the support leg of each metal ring is inserted into the fixing holes.

Further, the metal ring is arc-shaped, and the metal ring comprises openings, and the support legs are arranged at two ends of the openings.

Further, at least one of the legs is substantially perpendicular with respect to the ends of the eyelet.

Further, the at least one supporting leg extends towards the center of the plane defined by the metal ring.

Further, the two support legs at the two ends of the opening are perpendicular to the ends of the metal ring and extend in a direction away from the center of the plane defined by the metal ring.

Further, the routing inspection assembly for the fuel cell voltage further comprises a socket connector, wherein the socket connector is arranged on the PCB, and pins of the socket connector are in communication connection with the metal ring.

Further, the inspection assembly further comprises a support, and the support is fixedly arranged on the PCB.

Further, the fixing holes are uniformly arranged along the length direction of the PCB.

Further, the inspection assembly further comprises a fixing assembly, and the fixing assembly is used for installing the inspection assembly on the fuel cell.

According to another aspect of the present invention, there is provided a fuel cell including the above-mentioned inspection module for a fuel cell voltage.

According to the assembly of patrolling and examining of this application, whole easy dismounting is convenient for the maintenance of fuel cell pile. And moreover, after the formed metal rings and the PCB are integrally welded, the deviation of the appearance and the height is small, the metal rings are in contact with a fuel cell polar plate, the stress of each metal ring is uniform, and the acquired signals are relatively stable.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 to 3 respectively show three different metal rings of an inspection module for a fuel cell voltage according to a preferred embodiment of the present application;

FIG. 4 is a schematic diagram of the construction of an routing inspection plate assembly for fuel cell voltages with a side-mounted ferrule according to a preferred embodiment of the present application;

fig. 5 is a schematic view illustrating a structure of a PCB board of the routing inspection board assembly for a fuel cell voltage shown in fig. 4;

FIG. 6 shows a schematic diagram of an inspection assembly for fuel cell voltages with a bracket;

FIG. 7 shows a schematic view of a fuel cell stack with the routing inspection assembly of FIG. 6 installed;

FIG. 8 is a schematic diagram showing the configuration of the ferrule of the routing inspection assembly for fuel cell voltages in contact with the graphite electrodes of the fuel cell stack;

FIG. 9 is a schematic diagram of an inspection plate assembly for fuel cell voltages with a face-up ferrule in accordance with another preferred embodiment of the present application;

FIG. 10 shows a schematic diagram of an inspection assembly for fuel cell voltages with a bracket;

FIG. 11 illustrates the inspection assembly schematic of FIG. 10 with a mounting structure;

fig. 12 shows a schematic view of a fuel cell stack mounted with the routing inspection assembly for fuel cell voltage shown in fig. 9.

Wherein the figures include the following reference numerals:

100. a metal ring; 110. a support leg; 200. a PCB board; 210. a receptacle connector; 220. mounting holes; 230. a fixing hole; 300. a support; 400. a connecting device; 410. a first screw; 420. a first inspection support; 430. a second inspection support; 440. a first lock nut; 500. a fuel cell stack; 510. a graphite electrode; 610. a first routing inspection fixing bracket; 620. a second inspection fixing bracket; 630. a second screw; 640. a third screw; 650. a fourth screw; 660. a second lock nut; 670. a fifth screw; 700. a first fastening structure; 710. a third inspection support; 720. a third lock nut; 730. a sixth screw; 740. a seventh screw; 800. a U-shaped bracket; 900. a second fastening structure; 910. a first L-shaped bracket; 920. a second L-shaped bracket; 930. an eighth screw; 1000. an inspection plate assembly for fuel cell voltage; 2000. and (5) inspecting the assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The utility model provides a subassembly of patrolling and examining for fuel cell voltage, a subassembly of patrolling and examining for fuel cell voltage includes: a plurality of eyelets having legs; the PCB board is provided with a plurality of fixing holes, and the support leg of each metal ring is inserted into the fixing holes.

Fig. 1-3 illustrate a ferrule configuration according to various embodiments of the present application.

As shown in fig. 1 to 3, the ferrule 100 has an arc shape, and the ferrule 100 includes an opening, and two legs 110 are provided at both ends of the opening. As shown in fig. 1, two legs 110 extend in the direction in which the circular arc shaped eyelet 100 is bent. As shown in fig. 2, one leg 110 of the eyelet 100 extends in the direction in which the circular arc-shaped eyelet 100 is bent, and the other leg 110 is substantially perpendicular with respect to the end of the eyelet 100 and extends in the direction of the center of the plane defined by the eyelet 100. As shown in fig. 3, two legs 110 at both ends of the opening of the eyelet 100 are perpendicular to their respective ends, and the two legs 110 extend in a direction away from the center of the plane defined by the eyelet 100. That is, the two legs 110 protrude from both ends of the opening of the eyelet 100 to the outside of the circle defined by the eyelet 100. Only a few examples are shown in this application, and the metal ring 100 may have other different structures or shapes as long as the metal ring 100 can make communication connection with the PCB board 200 and make good contact with the fuel cell stack plate.

Fig. 4 shows a schematic diagram of an inspection plate assembly for fuel cell voltages with a side-mounted ferrule according to a preferred embodiment of the present application.

As shown in fig. 4, the patrol board assembly 1000 includes a PCB 200 and a plurality of metal rings 100 disposed on the PCB 200. The metal rings 100 are uniformly distributed along the length direction of the PCB board 200. Also, as shown, the metal rings 100 are mounted on the PCB board 200 in a side-mounted manner. Also, a socket connector 210 is further provided on the PCB board 200, and pins of the socket connector 210 are communicatively connected to the ferrule 100, so that, when the ferrule 100 is brought into contact with a plate of the fuel cell stack and an electrical signal is read from the plate PCB board 200, the electrical signal can be connected to the pins of the socket connector 210 through a wire on the PCB board 200, thereby transmitting the read signal to the socket connector 210. The receptacle connector 210 may transmit the obtained electrical signal to a signal processing system of the fuel cell through a signal line, thereby performing signal processing.

Fig. 5 illustrates a schematic structural view of the PCB board 200 of the patrol inspection assembly for a fuel cell voltage shown in fig. 4.

As shown in fig. 5, the PCB 200 is provided with a plurality of fixing holes 230 for receiving the legs 110 of the metal ring 100, and the fixing holes 230 are uniformly distributed along the length direction of the PCB 200. The two legs 110 of the metal ring 100 shown in fig. 1 to 3 can be inserted into two fixing holes 230 aligned with each other in width on the PCB 200, and preferably, the legs 110 of the metal ring 100 are fixed in the fixing holes 230 of the PCB 200 by soldering. Also, the PCB board 200 is provided with a mounting hole 220 for fixing a bracket 300 (to be described later).

Fig. 6 shows a schematic diagram of an inspection assembly for fuel cell voltages with a support.

As shown in fig. 6, the bracket 300 is mounted to the PCB board 200 of the inspection module by the connection device 400. As shown, the attachment apparatus 400 includes a first screw 410, a first routing inspection bracket 420, a second routing inspection bracket 430, and a first locking nut 440. The first inspection bracket 420 is placed on the PCB 200 such that the first screw 410 passes through the hole of the PCB 200 and the hole of the bracket 300, and the first inspection bracket 420, the PCB 200 and the bracket 300 are fixed together by the first lock nut 440 and the first screw 410. Similarly, the second inspection frame 430, the PCB 200 and the frame 300 are fixed together by the first screw 410 and the first locking nut 440.

The inspection assembly 2000 shown in fig. 6 is mounted to the fuel cell stack 500 through the first and second

inspection fixing brackets

610 and 620. As shown in fig. 7, the first inspection fixing bracket 610 fixes one end of the inspection assembly 2000 by the second and

third screws

630 and 640, and the second inspection fixing bracket 620 fixes the other end of the inspection assembly 2000 by the third and

fifth screws

640, 670 and the second locking nut 660, so that the inspection assembly 2000 is mounted to the fuel cell stack 500.

Fig. 8 shows a schematic view of the structure in which the ferrule of the routing inspection assembly for fuel cell voltage contacts the graphite electrode of the fuel cell stack. The figure shows the metal ring 100 in contact with the graphite electrodes 510 of the fuel cell stack 500. As shown in the figure, metal ring 100 and graphite electrode 510 in close contact with, consequently, appearance and height deviation are little after many metal rings 100 and the whole welding of PCB board 200, and when contacting with the fuel cell polar plate, every metal ring 100 atress is even to it is more stable to gather the signal ratio, and this kind of take metal ring 100 patrols and examines the whole easy dismounting of subassembly moreover, thereby the maintenance of the fuel cell pile of being convenient for.

Fig. 9 to 12 show schematic views of an inspection plate assembly for fuel cell voltage with a positive fitting ferrule according to another preferred embodiment of the present application. Unlike the embodiment shown in fig. 4, the ferrule 100 of the present embodiment has a different structure and the manner of mounting the ferrule 100. The embodiment shown in fig. 4 uses the metal ring 100 shown in fig. 1 and 2, and uses a manner of mounting the metal ring 100 (or called side-mounted metal ring) on the side of the PCB 200; in the present embodiment, the metal ring 100 shown in fig. 3 is used, and a manner of mounting the metal ring 100 (or called an in-line metal ring) on the upper portion (or front surface) of the PCB 200 is used. In addition to the above differences, this embodiment employs a different mounting structure for mounting the inspection module on the fuel cell stack 500.

As shown in fig. 10 to 12, the PCB 200 with the metal rings 100 is fixed to the bracket 300 by the sixth screws 730 and the corresponding lock nuts, and the PCB 200 fixed to the bracket 300 is fixed to the U-shaped bracket 800 by the first and

second fastening structures

700 and 900 and finally mounted to the fuel cell stack 500. The first fastening structure 700 includes a third inspection bracket 710 provided at one end of the inspection assembly 2000 and seventh screws 740 and third lock nuts 720 for fixing the third inspection bracket 710 to the fuel cell stack 500. The second fastening structure 900 includes first and second L-shaped

brackets

910 and 920 and an eighth screw 930 for mounting the other end of the inspection module 2000 to the fuel cell stack 500.

According to the embodiment, the metal ring is arranged on the upper part (or the front surface) of the PCB, and the metal ring and the PCB can be welded in batch by wave soldering, so that the production efficiency can be improved, and the welding cost can be saved.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An inspection assembly for fuel cell voltages, the inspection assembly comprising:

a plurality of eyelets (100), the eyelets (100) having legs (110);

the PCB comprises a PCB board (200), wherein a plurality of fixing holes (230) are formed in the PCB board (200), and the support leg of each metal ring (100) is inserted into the fixing holes (230).

2. The inspection assembly for fuel cell voltages of claim 1, wherein the eyelet (100) is arcuate in shape and the eyelet (100) includes an opening, the legs (110) being disposed at both ends of the opening.

3. The inspection assembly for fuel cell voltages according to claim 2, characterized in that at least one of the feet (110) is substantially perpendicular with respect to the end of the eyelet (100).

4. The inspection assembly for fuel cell voltages of claim 3, wherein the at least one leg (110) extends towards a center of a plane defined by the ferrule (100).

5. The inspection assembly for fuel cell voltages of claim 3, wherein the two legs (110) at the two ends of the opening are perpendicular to the ends of the eyelet (100) and extend in a direction away from a center of a plane defined by the eyelet (100).

6. The inspection assembly for fuel cell voltages of claim 1, further comprising a socket connector (210), the socket connector (210) being disposed on the PCB board (200), and pins of the socket connector (210) being communicatively connected with the ferrule (100).

7. The inspection assembly according to claim 1, further including a bracket (300), the bracket (300) being fixedly disposed on the PCB board (200).

8. The inspection assembly for fuel cell voltages of claim 2, wherein the fixing holes (230) are uniformly arranged along a length direction of the PCB board (200).

9. The inspection assembly for fuel cell voltages of claim 1 further including a securing assembly for mounting the inspection assembly to the fuel cell.

10. A fuel cell characterized by comprising the inspection module for a fuel cell voltage according to any one of claims 1 to 9.