CN113093028A

CN113093028A - Connecting device, connector and detection device for detecting fuel cell pole piece

Info

Publication number: CN113093028A
Application number: CN201911342549.8A
Authority: CN
Inventors: 王鹏; 杨东胜; 龚正伟; 魏礼良
Original assignee: Weishi Energy Technology Co Ltd
Current assignee: Weishi Energy Technology Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2021-07-09
Anticipated expiration: 2039-12-23
Also published as: CN113093028B

Abstract

The application discloses a connecting device, a connector and a detection device for detecting a fuel cell pole piece. A connecting device for detecting a fuel cell pole piece is characterized by comprising a first group of ports, a second group of ports and a shell; the first group of ports comprises a group of ports which are arranged at intervals; the second group of ports are arranged below the first group of ports, comprise a group of ports which are arranged at intervals, are arranged in a staggered mode with the first group of ports in the arrangement direction, and are the same as the first group of ports in number; the housing receives the first and second sets of ports and includes stepped first and second sides perpendicular to the direction of the first set of ports, the first side adjacent a first port of the first and second sets of ports and the second side adjacent a last port of the first and second sets of ports. Through dislocation set port and shell, realize the dislocation grafting of adjacent connector, guarantee that each pole piece can both detect.

Description

Connecting device, connector and detection device for detecting fuel cell pole piece

Technical Field

The application relates to the field of fuel cell voltage inspection, in particular to a connecting device, a connector and a detection device for detecting a fuel cell pole piece.

Background

Cell voltage sampling (CVP) was used to measure the voltage across each bipolar plate in the fuel cell stack. The operating conditions of the single bipolar plates of a fuel cell stack directly affect the performance of the entire stack. Therefore, the voltage of the single bipolar plate needs to be monitored in real time to ensure that the system can take corresponding fault treatment measures or change the operation strategy when an abnormal condition occurs, so as to protect the stack and prolong the service life of the stack.

The fuel cell stack has limited space and the spacing between bipolar plates is extremely narrow. When the CVP joint is adopted to detect the voltage of the polar plate of the fuel cell, the traditional CVP joint cannot detect the voltage of each bipolar plate in a limited space and at a very narrow interval. When two CVP joints are placed side by side for measurement, the bipolar plate at the contact location of the two joints cannot be detected. To sense the voltage across each plate, connector tabs are placed in offset positions on the bipolar plate. Misplacing the connectors, on the one hand, takes up space and, on the other hand, is detrimental to the management of the wiring harness and is difficult to install.

Another way to detect the voltage of each bipolar plate is pin detection, i.e., a set of wires with pins are directly inserted into the jacks of the bipolar plates for detection. This kind of mode is consuming time hard, and the contact is not firm, and the contact pin loosens from the jack easily, influences the testing result.

Disclosure of Invention

The application aims at providing a connecting device for detecting a fuel cell pole piece. Through changing the arrangement mode of ports on the connecting device and the structural form of the connecting device, the terminals are inserted in a staggered mode during measurement, and the two connecting devices are clamped with each other during side-by-side measurement, so that the detection of each electrode plate is realized.

According to a first aspect of the present application, a connection device for fuel cell pole piece testing is provided, which is characterized by comprising a first set of ports, a second set of ports and a housing. The first group of ports comprises a group of ports which are arranged at intervals; the second group of ports are arranged below the first group of ports, comprise a group of ports which are arranged at intervals, are arranged in a staggered mode with the first group of ports in the arrangement direction, and are the same as the first group of ports in number; the housing receives the first and second sets of ports and includes stepped first and second sides perpendicular to the direction of the first set of ports, the first side adjacent a first port of the first and second sets of ports and the second side adjacent a last port of the first and second sets of ports.

Through the dislocation arrangement of the upper and lower groups of ports, the dislocation insertion of the terminals can be realized, thereby meeting the detection requirement of adjacent bipolar plates with extremely small space. Through improving the structural style of shell for the step form, it is unanimous with the dislocation arrangement mode of upper and lower two sets of ports to guarantee that two connect when working side by side, the bipolar plate that is located two joint contact positions can be detected.

According to some embodiments of the present application, a separation distance between the first set of ports or between the second set of ports is less than or equal to 2 times a pitch of the measurands.

If a set of ports is used to realize uninterrupted measurement of a set of bipolar plates, the distance between the ports needs to be equal to the distance between the objects to be measured. Because of the small spacing between the bipolar plates, the spacing of the ports, whether designed or manufactured, does not meet this spacing requirement. When the distance between the ports is less than or equal to 2 times of the distance between the measured objects, the bipolar plates arranged at intervals can be detected through the ports. The two groups of ports staggered up and down can realize uninterrupted measurement of one group of bipolar plates.

Further, the dislocation distance between the central position of the first port of the second group of ports and the central position of the first port of the first group of ports is the distance between the pole pieces to be tested.

When the dislocation distance between the two groups of ports is the distance between the pole pieces to be detected, the pole pieces positioned between the detection pole pieces of the first group of ports can be detected through the second group of ports.

Further, the distance between the center of the first port of the first set of ports and the first side of the housing and the distance between the center of the last port of the first set of ports and the second side of the housing are smaller than or equal to the distance between the pole pieces to be tested.

According to some embodiments of the application, a first side of the housing is convex at the location of the first set of ports and a second side of the housing is concave at the location of the first set of ports.

Further, the first side of the housing is recessed at the location of the second set of ports and the second side of the housing is raised at the location of the second set of ports.

According to further embodiments of the application, the first side of the housing is concave at the location of the first set of ports and the second side of the housing is convex at the location of the first set of ports.

Further, the first side of the housing is convex at the location of the second set of ports and the second side of the housing is concave at the location of the second set of ports.

The convex and concave shell structures of the connecting devices are adapted to the staggered arrangement mode of the two rows of ports, so that the two connecting devices are mutually clamped when working side by side, and the measurement of each pole piece is not influenced.

According to a second aspect of the present application, a connector for fuel cell pole piece testing is proposed, comprising a connecting device as described above, a first set of terminals and a second set of terminals. The first group of terminals are accommodated in the first group of ports of the connecting device; the second group of terminals are accommodated in the second group of ports of the connecting device.

According to a third aspect of the present application, a detection device for a fuel cell pole piece is provided, which comprises the connector.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present application.

Fig. 1 shows a structural view of a conventional connecting device.

Fig. 2 is a schematic view showing the operation of the conventional connectors arranged side by side.

Fig. 3 is a schematic diagram showing the operation of the conventional connector in a misaligned arrangement.

Fig. 4 shows a schematic view of a connection device according to an example embodiment of the present application.

Fig. 5 shows a schematic view of a connection device according to another exemplary embodiment of the present application.

Fig. 6 shows a schematic diagram of a juxtaposition of connecting means according to an exemplary embodiment of the present application.

Fig. 7 illustrates a perspective view of a connector side-by-side arrangement according to an example embodiment of the present application.

Fig. 8 illustrates a schematic diagram of the connector juxtaposition operation according to an exemplary embodiment of the present application.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.

The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

Those skilled in the art will appreciate that the drawings are merely schematic representations of exemplary embodiments, which may not be to scale. The blocks or flows in the drawings are not necessarily required to practice the present application and therefore should not be used to limit the scope of the present application.

Fig. 1 shows a structural view of a conventional connecting device.

As shown in fig. 1, the conventional connection device 100 includes a first set of ports 110, a second set of ports 120, and a housing 130. The first and second sets of

ports

110, 120 are received on the housing. The first set of ports 110 and the second set of ports 120 have different port numbers. The housing 130 has a rectangular shape.

As shown in fig. 2, when the conventional connector 1000 formed by the conventional connection device 100 is arranged in parallel to detect the pole piece voltage, the bipolar plate 200 corresponding to the contact position between the conventional connector 1000 and the conventional connector 2000 cannot be detected. Therefore, the conventional connectors arranged in parallel cannot realize voltage detection of each bipolar plate.

As shown in fig. 3, when the bipolar plate voltage test is performed by using the conventional connector, it is necessary to dispose the conventional connector 1000 and the conventional connector 2000 on the bipolar plate 200 in a misaligned manner in order to test the voltage of each bipolar plate.

Misplacing the connectors, on the one hand, takes up space and, on the other hand, is detrimental to the management of the wiring harness and is difficult to install.

Therefore, the inventor of the invention improves the structure of the traditional connecting device and provides a new connecting device aiming at the problem that the voltage detection of each bipolar plate cannot be realized when the traditional connectors are arranged in parallel. The technical solution of the present application will be described in detail below with reference to the accompanying drawings.

As shown in fig. 4, according to an example embodiment of the present application, a connection device 300 for fuel cell pole piece testing is provided, comprising a first set of ports 310, a second set of ports 320, and a housing 330.

The first set of ports 310 includes a set of spaced apart ports; the second set of ports 320 is disposed below the first set of ports 310. The second set of ports 320 also includes a set of spaced apart ports.

The first set of ports 310 includes the same number of ports as the second set of ports 320. As shown in fig. 4, for example, the first group of ports 310 and the second group of ports 320 each include 6 ports, which are respectively the

ports

311 and 316 and 321 and 326.

As shown in fig. 4, the first set of ports 310 and the second set of ports 320 are arranged in a transverse direction. The second set of ports 320 is offset from the first set of ports 310 in the direction of alignment.

A housing 330 houses the first set of ports 310 and the second set of ports 320. As shown in fig. 4, the housing 330 includes a stepped first side 331 and a second side 332 perpendicular to the arrangement direction of the first set of ports 310.

The first side 331 is adjacent to the

first ports

311 and 321 of the first and second sets of

ports

310 and 320. The second side 332 is adjacent to the

last ports

316 and 326 of the first and second sets of

ports

310 and 320.

According to an example embodiment of the present application, the distance d1 between the first set of ports 310 and the spacing d2 distance between the second set of ports 320 is less than or equal to 2 times the measurand pitch.

When the distance between the same group of ports is less than or equal to 2 times of the distance between the tested objects, the bipolar plates arranged at intervals can be detected through one row of ports.

According to the example embodiment of the present application, the misalignment distance d between the center position of the first port 321 of the second port set 320 and the center position of the first port 311 of the first port set 310 is the distance between the measured pole pieces.

As shown in fig. 4, a distance between a center position of the

first ports

311 and 321 of the first group of ports 310 and the second group of ports 320 and the first side 331 of the housing 330 is smaller than or equal to a pitch of the measured pole pieces. Similarly, the distance between the center of the

last port

316, 326 of the first set of ports 310 and the second set of ports 320 and the second side 332 of the housing 330 is less than or equal to the pitch of the pole pieces to be tested.

According to an exemplary embodiment of the present application, referring to fig. 4, the first side 331 of the housing 330 is convex at the location of the first set of ports 310 and the second side 332 of the housing 330 is concave at the location of the first set of ports 310. The first side 331 of the housing 330 is recessed at the location of the second set of ports 320 and the second side 332 of the housing 330 is raised at the location of the second set of ports 320.

The upper and lower projections and recesses allow the two connectors 300 to be inserted into each other and fit into each other like a building block when they are operated in parallel.

As shown in fig. 5, according to another exemplary embodiment of the present application, the first side 331 of the housing 330 is concave at the location of the first set of ports 310 and the second side 332 of the housing 330 is convex at the location of the first set of ports 310.

The first side 331 of the housing 330 is convex at the location of the second set of ports 320 and the second side 332 of the housing 330 is concave at the location of the second set of ports 320.

Fig. 6 shows a clamping diagram of a connection device according to an exemplary embodiment of the present application.

As shown in fig. 6, the convex and concave structures of the connection device 300 are adapted to the staggered arrangement of the two rows of ports, so that when a plurality of connection devices 300 are working in parallel, they are mutually clamped, and the measurement of each pole piece is not affected.

According to a second aspect of the present application, there is provided a connector 3000 for fuel cell pole piece testing, comprising a connecting device 300 as described above, a first set of terminals and a second set of terminals. A first set of terminals is received within the first set of ports 310 of the connection device 300. A second set of terminals is received within the second set of ports 320 of the connection device 300.

Fig. 7 illustrates a perspective view of a connector side-by-side arrangement according to an example embodiment of the present application. Fig. 8 illustrates a schematic diagram of the connector juxtaposition operation according to an exemplary embodiment of the present application.

As shown in fig. 7, when several connectors 3000 are inserted in parallel into the bipolar plate of the fuel cell stack for testing, the connectors 3000 are engaged with each other. As shown in fig. 8, each bipolar plate 200 can be inserted into the connector 3000 due to the offset arrangement of the first and second sets of

ports

310 and 320 and the interlocking of the connectors 3000. With the connectors 3000 arranged in parallel, voltage detection of all bipolar plates 200 is achieved.

It should be noted that each of the embodiments described above with reference to the drawings is only for illustrating the present application and not for limiting the scope of the present application, and those skilled in the art should understand that modifications or equivalent substitutions made on the present application without departing from the spirit and scope of the present application should be covered by the present application. Furthermore, unless the context indicates otherwise, words that appear in the singular include the plural and vice versa. Additionally, all or a portion of any embodiment may be utilized with all or a portion of any other embodiment, unless stated otherwise.

Claims

1. A connection device for fuel cell pole piece testing, comprising:

the first group of ports comprise a group of ports which are arranged at intervals;

the second group of ports are arranged below the first group of ports, comprise a group of ports which are arranged at intervals, are arranged in a staggered mode with the first group of ports in the arrangement direction, and are the same as the first group of ports in number;

and the shell is used for accommodating the first group of ports and the second group of ports and comprises a stepped first side and a stepped second side which are perpendicular to the arrangement direction of the first group of ports, the first side is adjacent to the first port of the first group of ports and the second group of ports, and the second side is adjacent to the last port of the first group of ports and the second group of ports.

2. The connection apparatus of claim 1, wherein a separation distance between the first set of ports or between the second set of ports is less than or equal to 2 times a pitch of the measurands.

3. The connecting device of claim 2, wherein the offset distance between the center position of the first port of the second set of ports and the center position of the first port of the first set of ports is the pitch of the measured pole pieces.

4. The connecting device of claim 1, wherein a distance between the first port center of the first and second sets of ports and the first side of the housing, and a distance between a last port center of the first and second sets of ports and the second side of the housing, is less than or equal to a pitch of the measured pole pieces.

5. The connection device of claim 4, wherein the first side of the housing is convex at the location of the first set of ports and the second side of the housing is concave at the location of the first set of ports.

6. The connection device of claim 5, wherein the first side of the housing is recessed at the location of the second set of ports and the second side of the housing is raised at the location of the second set of ports.

7. The connection device of claim 4, wherein the first side of the housing is recessed at the location of the first set of ports and the second side of the housing is raised at the location of the first set of ports.

8. The connection device of claim 7, wherein the first side of the housing is convex at the location of the second set of ports and the second side of the housing is concave at the location of the second set of ports.

9. A connector for fuel cell pole piece testing, comprising:

the connection device of claims 1-8;

a first set of terminals received in the first set of ports of the connecting device;

and the second group of terminals are accommodated in the second group of ports of the connecting device.

10. A testing device for a fuel cell pole piece comprising the connector of claim 9.