Inspection probe device for bipolar plate of hydrogen fuel cell

Abstract

The utility model discloses an inspection probe device for a bipolar plate of a hydrogen fuel cell. The inspection probe device comprises an end plate fixing block, a fixing beam, a plurality of probe fixing blocks and a plurality of spring probes, the spring probe is detachably arranged on the probe fixing block and is used for detection; the probe fixing block is detachably arranged on the fixing beam in a position-adjustable manner; the fixing beam is detachably arranged on the end plate fixing block; the end plate fixing block is detachably fixed on an end plate of the hydrogen fuel cell; after the inspection probe device for the bipolar plate of the hydrogen fuel cell is installed, one end of the spring probe is connected with the polar plate of the hydrogen fuel cell, and the other end of the spring probe can be connected with an inspection device. According to the utility model, the spring probe can be quickly installed, detached and replaced at any time, the device adopts the spring probe to detect the voltage of the pole plate, and the voltage detection requirements of galvanic piles with different sizes can be met by adjusting the position of the spring probe.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydrogen fuel cell technical field, concretely relates to a kind of hydrogen fuel cell bipolar plate inspection probe device. BACKGROUND

[0002] Currently, the core component of hydrogen fuel cell is stack, and during stack testing and working process, it is necessary to install inspector to monitor and diagnose the state of hydrogen fuel cell in real time. The inspection probe is a part that connects the inspector and the bipolar plate. The probe realizes real-time monitoring of the voltage, current and temperature of the stack by contacting the bipolar plate. These parameters are crucial for evaluating the working condition of the stack and timely discovering potential problems.

[0003] Currently, most of the graphite bipolar plate fuel cell inspection probes are in the shape of a spring. The spring is inserted into the installation slot of the bipolar plate and fixed by glue. The disadvantages are: (1) an installation slot needs to be opened on the bipolar plate, which is complicated to install and cannot be replaced after failure; (2) the inspection position cannot be adjusted after being fixed.

[0004] As can be seen from the above, at present, there is a lack of a new type of hydrogen fuel cell bipolar plate inspection probe device to realize quick installation, detachable and replaceable of the probe, to facilitate the position adjustment of the probe and meet the voltage detection needs of different size stacks.

[0005] Therefore, a new technology is needed to solve the problem of the lack of a new type of hydrogen fuel cell bipolar plate inspection probe device in the prior art. SUMMARY

[0006] To solve the above problems in the prior art, the utility model provides a hydrogen fuel cell bipolar plate inspection probe device. The device can realize quick installation, detachable and replaceable of the spring probe. At the same time, the device uses spring probes to detect the voltage of the bipolar plate. By adjusting the position of the spring probe, the voltage detection needs of different size stacks can be met.

[0007] The utility model adopts the following technical solutions:

[0008] A hydrogen fuel cell bipolar plate inspection probe device includes an end plate fixing block, a fixed beam, a plurality of probe fixing blocks and a plurality of spring probes. The spring probes are detachably arranged on the probe fixing blocks for detection. The probe fixing blocks are detachably arranged on the fixed beam and can be adjusted in position. The fixed beam is detachably arranged on the end plate fixing block. The end plate fixing block is detachably fixed to the end plate of the hydrogen fuel cell. After the hydrogen fuel cell bipolar plate inspection probe device is installed, one end of the spring probe is connected to the bipolar plate of the hydrogen fuel cell, and the other end of the spring probe can be connected to the inspector.

[0009] Further, the spring probe comprises a probe body and a spring telescopic part; the spring telescopic part is movably arranged on the probe body; the probe body comprises a fixed part and a connecting part for connecting with an inspector; a plurality of fixed holes are arranged on each probe fixed block; the fixed part can be connected and fixed with the fixed hole.

[0010] Further, the fixed part is in interference fit with the fixed hole.

[0011] Further, a plurality of key groove holes are arranged on the fixed beam; the hydrogen fuel cell bipolar plate inspection probe device further comprises a first connecting piece; the first connecting piece fixes the probe fixed block on the set position of the key groove hole; a plurality of connecting holes are arranged on each probe fixed block, and the connecting holes are used for connecting with the first connecting piece; the key groove hole has a set length and is used for fixing the probe fixed block to an appropriate position.

[0012] Further, two key groove holes are used for fixing one probe fixed block.

[0013] Further, the hydrogen fuel cell bipolar plate inspection probe device further comprises a second connecting piece; the second connecting piece detachably connects the fixed beam and the end plate fixed block.

[0014] Further, a plurality of first mounting holes are arranged on the end plate fixed block; the second connecting piece connects the fixed beam and the end plate fixed block through the first mounting hole and the key groove hole at the set position.

[0015] Further, a second mounting hole is arranged on the end plate fixed block; the hydrogen fuel cell bipolar plate inspection probe device further comprises a third connecting piece; the third connecting piece fixes the end plate fixed block on the end plate of the hydrogen fuel cell through the second mounting hole.

[0016] Further, the fixed beam is fixed on the end plate of the hydrogen fuel cell through two end plate fixed blocks.

[0017] Further, the first connecting piece, the second connecting piece and the third connecting piece are all bolts.

[0018] Compared with the prior art, the hydrogen fuel cell bipolar plate inspection probe device has the advantages that:

[0019] The utility model provides a kind of hydrogen fuel cell bipolar plate inspection probe device, its spring probe is detachably arranged on probe fixed block, the quick installation of spring probe can be realized, it can be disassembled and can be replaced at any time;The utility model uses spring probe, can detect polar plate voltage, distinguish from the spring piece used before;Among them, since spring probe is fixed on probe fixed block, and probe fixed block is detachably and position-adjustably fixed on fixed beam, the utility model can indirectly adjust the position of spring probe by directly adjusting the fixed position of probe fixed block, so that spring probe adapts to the voltage maintenance needs of different size electric piles. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model makes further detailed description of the technology of the utility model in combination with the drawings and specific embodiment:

[0021] Figure 1 It is the micro-explosion effect schematic diagram of hydrogen fuel cell bipolar plate inspection probe device;

[0022] Figure 2 It is the stereogram schematic diagram that end plate fixed block, fixed beam, several probe fixed blocks and several spring probes are preassembled (wherein, first connecting piece, second connecting piece and third connecting piece are not shown);

[0023] Figure 3 It is Figure 2 Front elevation (show the length of keyway hole, show the length of probe fixed block);

[0024] Figure 4 It is the stereogram schematic diagram that several spring probes are installed on a probe fixed block;

[0025] Figure 5 It is Figure 4 Front left view of

[0026] Figure 6 It is the stereogram schematic diagram of spring probe;

[0027] Figure 7 It is the schematic diagram of hydrogen fuel cell bipolar plate inspection probe device after installation;

[0028] Figure 8 It is Figure 7 The local enlarged view of A;

[0029] Figure 9 It is the local schematic diagram of hydrogen fuel cell bipolar plate inspection probe device after installation.

[0030] Reference signs:

[0031] 1-end plate fixed block;11-first mounting hole;12-second mounting hole;

[0032] 2-fixed beam; 21-keyway hole; L1-length;

[0033] 3-probe fixing block; 31-fixing hole; 32-connecting hole; L2-length;

[0034] 4-spring probe; 41-probe body; 411-fixing part; 412-connecting part; 413-abutting ring part; 42-spring telescopic part;

[0035] 5-end plate; A-partial enlarged view;

[0036] 6-polar plate. DETAILED DESCRIPTION

[0037] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and the drawings, so as to fully understand the purpose, scheme and effects of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The same reference numerals in the drawings indicate the same or similar parts.

[0038] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right and other descriptions used in the present application are only relative to the mutual position relationship of the components of the present application in the drawings.

[0039] Referring to Figures 1 to 9 A hydrogen fuel cell bipolar plate inspection probe device, comprising an end plate fixing block 1, a fixed beam 2, a plurality of probe fixing blocks 3 and a plurality of spring probes 4; the spring probe 4 is detachably arranged on the probe fixing block 3 and is used for detection; the probe fixing block 3 is detachably and position-adjustably arranged on the fixed beam 2; the fixed beam 2 is detachably arranged on the end plate fixing block 1; the end plate fixing block 1 is detachably fixed on the end plate 5 of the hydrogen fuel cell; after the hydrogen fuel cell bipolar plate inspection probe device is installed, one end of the spring probe 4 is connected with the polar plate 6 of the hydrogen fuel cell, and the other end of the spring probe 4 can be connected with an inspector.

[0040] Referring to Figures 1 to 9In one embodiment, the spring probe 4 comprises a probe body 41 and a spring telescopic part 42; the spring telescopic part 42 is telescopically movably arranged on the probe body 41; the probe body 41 comprises a fixed part 411 and a connecting part 412 for connecting with a patrol device; a plurality of fixing holes 31 are formed on each of the probe fixing blocks 3; the fixed part 411 can be connected and fixed with the fixing holes 31. Wherein, after the hydrogen fuel cell bipolar plate patrol probe device is installed, the spring telescopic part 42 is connected with the polar plate 6 of the hydrogen fuel cell, and in the process of using the stack, if vibration or bumping occurs, the spring telescopic part 42 can automatically expand and contract, and always remains connected with the polar plate 6, thereby realizing real-time monitoring.

[0041] Referring to Figures 1 to 9 In one embodiment, the fixed part 411 is in interference fit with the fixing hole 31, and can meet the fixing needs of the spring probe 4.

[0042] Referring to Figures 1 to 9 Preferably, the probe body 41 further comprises an abutting ring part 413 arranged on the fixed part 411, which is used to limit the fixed part 411 from excessively extending into the fixing hole 31 after the fixed part is connected with the fixing hole in interference fit; preferably, the abutting ring part 413 is arranged at the middle position of the fixed part 411; preferably, the fixed part 411 and the connecting part 412 are shaft bodies, and the radius of the normal cross section of the fixed part 411 is greater than the radius of the normal cross section of the connecting part 412. Preferably, the spring telescopic part 42 comprises a shaft body and a spring, and the shaft body is telescopically movably arranged on one end of the fixed part 411 through the built-in spring; preferably, the shaft body of the spring telescopic part is coaxially arranged with the fixed part 411 and the connecting part 412; preferably, the radius of the normal cross section of the shaft body of the spring telescopic part is consistent with the radius of the normal cross section of the connecting part 412.

[0043] Referring to Figures 1 to 9 In one embodiment, a plurality of key groove holes 21 are arranged on the fixed beam 2; the hydrogen fuel cell bipolar plate patrol probe device further comprises a first connecting piece; the first connecting piece fixes the probe fixing block 3 at a set position of the key groove hole 21; a plurality of connecting holes 32 are arranged on each of the probe fixing blocks 3, and the connecting holes 32 are used to connect with the first connecting piece, thereby realizing the fixation of the probe fixing block 3 to the fixed beam 2; the key groove hole 21 has a set length L1, which is used to adjust the probe fixing block 3 to a suitable position for fixation. Wherein, preferably, the connecting hole 32 is a threaded hole capable of being threadedly connected with the first connecting piece (such as a bolt).

[0044] Referring to Figures 1 to 9In one embodiment, two of the key groove holes 21 are used for fixing the probe fixing block 3.

[0045] With reference to Figures 1 to 9 In one embodiment, the hydrogen fuel cell bipolar plate inspection probe device further comprises a second connecting member; the second connecting member detachably connects the fixing beam 2 and the end plate fixing block 1.

[0046] With reference to Figures 1 to 9 In one embodiment, the end plate fixing block 1 is provided with a plurality of first mounting holes 11; the second connecting member connects the fixing beam 2 and the end plate fixing block 1 through the first mounting holes 11 and the key groove holes 21 at a set position; preferably, the second connecting member connects the fixing beam 2 and the end plate fixing block 1, and a nut is sleeved at the bottom of the second connecting member for locking.

[0047] With reference to Figures 1 to 9 In one embodiment, the end plate fixing block 1 is provided with a second mounting hole 12; the hydrogen fuel cell bipolar plate inspection probe device further comprises a third connecting member; the third connecting member fixes the end plate fixing block 1 on the end plate 5 of the hydrogen fuel cell through the second mounting hole; preferably, the third connecting member is threadedly connected with a threaded hole on the end plate 5 through the second mounting hole 12, so as to fix the end plate fixing block 1 on the end plate 5 of the hydrogen fuel cell.

[0048] With reference to Figures 1 to 9 In one embodiment, the fixing beam 2 is fixed on the end plate 5 of the hydrogen fuel cell through two of the end plate fixing blocks 1.

[0049] In one embodiment, the first connecting member, the second connecting member and the third connecting member are all bolts.

[0050] Other contents of the hydrogen fuel cell bipolar plate inspection probe device are known from the prior art, and will not be described here.

[0051] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical solution of the present application.

Claims

1. A hydrogen fuel cell bipolar plate inspection probe device, characterized in that, The probe device comprises an end plate fixing block, a fixing beam, a plurality of probe fixing blocks and a plurality of spring probes; the spring probes are detachably arranged on the probe fixing blocks and used for detection; the probe fixing blocks are detachably and position-adjustably arranged on the fixing beam; the fixing beam is detachably arranged on the end plate fixing block; the end plate fixing block is detachably fixed on the end plate of the hydrogen fuel cell; after the probe device is installed, one end of the spring probe is connected with the polar plate of the hydrogen fuel cell, and the other end of the spring probe can be connected with an inspector.

2. The hydrogen fuel cell bipolar plate inspection probe apparatus of claim 1, wherein, The spring probe comprises a probe main body and a spring telescopic part; the spring telescopic part is telescopically and movably arranged on the probe main body; the probe main body comprises a fixed part and a connecting part used for being connected with the inspector; a plurality of fixing holes are formed in each probe fixing block; the fixed part can be connected and fixed with the fixing hole.

3. The hydrogen fuel cell bipolar plate inspection probe apparatus of claim 2, wherein, The fixed part is in interference fit with the fixing hole.

4. The hydrogen fuel cell bipolar plate inspection probe apparatus of any one of claims 1 to 3, wherein, The fixing beam is provided with a plurality of key groove holes; the probe device further comprises a first connecting piece; the first connecting piece fixes the probe fixing block on the set position of the key groove hole; each probe fixing block is provided with a plurality of connecting holes used for being connected with the first connecting piece; the key groove hole has a set length and is used for fixing the probe fixing block to a suitable position.

5. The hydrogen fuel cell bipolar plate inspection probe apparatus of claim 4, wherein, Two key groove holes are used for fixing one probe fixing block.

6. The hydrogen fuel cell bipolar plate inspection probe apparatus of claim 4, wherein, The probe device further comprises a second connecting piece; the second connecting piece detachably connects the fixing beam and the end plate fixing block.

7. The hydrogen fuel cell bipolar plate inspection probe apparatus of claim 6, wherein, The end plate fixing block is provided with a plurality of first mounting holes; the second connecting piece connects the fixing beam and the end plate fixing block together through the first mounting holes and the key groove holes at the set positions.

8. The hydrogen fuel cell bipolar plate inspection probe apparatus of claim 7, wherein, The end plate fixing block is provided with a second mounting hole; the probe device further comprises a third connecting piece; the third connecting piece fixes the end plate fixing block on the end plate of the hydrogen fuel cell through the second mounting hole.

9. The hydrogen fuel cell bipolar plate inspection probe apparatus of claim 7, wherein, The fixing beam is fixed on the end plate of the hydrogen fuel cell through two end plate fixing blocks.

10. The hydrogen fuel cell bipolar plate inspection probe apparatus of claim 8, wherein, The first connecting piece, the second connecting piece and the third connecting piece are all bolts.

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