An integrated quick-insert device for voltage detection of metal bipolar plates of fuel cells

Abstract

An integrated quick-insertion device for voltage detection of metal bipolar plates of fuel cells includes a plastic shell and a metal reed; a reed insertion slot is provided in the plastic shell, a fin interface and a fin slot are provided at the front end, and a wire interface is provided at the rear end, both of which are connected to the reed insertion slot; the metal reed is installed in the reed insertion slot, the front end of which is in the shape of a clip and the rear end is in the shape of a U, and a metal reed clamping structure is provided on the plastic shell; guide posts and cantilever buckles are connected to the two sides of the plastic shell respectively. The present invention integrates multiple detection units into a quick-insertion device to realize integrated detection; the plastic shell can be made in a split or integral manner; the metal reed clamping structure not only clamps the metal reed, but also clamps the connected wire; the guide post guides when assembling with the metal bipolar plate, and the cantilever buckle locks when assembling with the metal bipolar plate, so as to ensure a reliable connection between the integrated quick-insertion device and the metal bipolar plate.

Description

Technical Field

[0001] The invention belongs to the technical field of fuel cells and relates to a testing device for fuel cells, and in particular to an integrated quick-insertion device for voltage detection of metal bipolar plates of fuel cells. Background Art

[0002] In order to ensure the reliability of fuel cell operation, it is necessary to monitor its voltage. Figure 1 The traditional method is to crimp the wire to the metal pin, and then insert the metal pin into the metal bipolar plate. This connection method is difficult to operate on a large battery stack, and may cause problems such as pin deformation and vibration connection failure. Summary of the invention

[0003] In view of the above problems, the present invention provides an integrated quick-insertion device for voltage detection of metal bipolar plates of fuel cells.

[0004] The object of the present invention can be achieved by the following technical scheme: an integrated quick-insertion device for voltage detection of metal bipolar plates of fuel cells, comprising a plastic shell and a metal reed; a reed insertion groove is provided inside the plastic shell, a fin interface and a fin slot are provided at the front end of the plastic shell, and a wire interface is provided at the rear end of the plastic shell, and the fin interface and the wire interface are both connected to the reed insertion groove; the metal reed is installed in the reed insertion groove, the front end of the metal reed is in a clip shape and corresponds to the fin interface, the rear end of the metal reed is U-shaped and corresponds to the wire interface, and a metal reed clamping structure is provided on the plastic shell; guide columns and cantilever buckles are respectively connected to the two sides of the plastic shell, the guide columns and the cantilever buckles are both arranged in the front-to-back direction, a buckle is provided at the front of the cantilever buckle, the middle part of the cantilever buckle is connected to the plastic shell, and the rear part of the cantilever buckle is pressed to keep its front part away from the plastic shell.

[0005] Preferably, the plastic shell comprises a first plastic shell and a second plastic shell, the first plastic shell and the second plastic shell are butt-jointed structures, and spring insertion grooves are provided on the connecting surfaces of the first plastic shell and the second plastic shell.

[0006] Furthermore, the connection surface of the first plastic shell is provided with a buckle, and the second plastic shell is provided with a bayonet matched with the buckle. Furthermore, the connection surface of the first plastic shell is provided with a guide column groove, and the connection surface of the second plastic shell is provided with a guide column matched with the guide column groove.

[0007] Furthermore, the spring insertion grooves of the first plastic shell and the second plastic shell are staggered; the metal spring clamping structure includes a spring clamping block, and the connecting surfaces of the first plastic shell and the second plastic shell are provided with spring clamping blocks, the spring clamping blocks on the first plastic shell correspond to the spring insertion grooves and the wire interface on the second plastic shell, and the spring clamping blocks on the second plastic shell correspond to the spring insertion grooves and the wire interface on the first plastic shell, and a wire bayonet is formed between each of the spring clamping blocks and the corresponding spring insertion groove and the wire interface.

[0008] Furthermore, a guide column is connected to the surface opposite to the connecting surface of the first plastic shell, and a cantilever buckle is connected to the surface opposite to the connecting surface of the second plastic shell.

[0009] Furthermore, a reed insertion groove is provided on the connecting surface of the first plastic shell, a fin interface and two fin slots on both sides are provided on the front end of the first plastic shell, and a wire interface is provided at the tail end of the first plastic shell; two reed insertion grooves are provided on the connecting surface of the second plastic shell, two fin interfaces and a fin slot in the middle are provided on the front end of the second plastic shell, and two wire interfaces are provided at the tail end of the second plastic shell.

[0010] Preferably, the metal spring sheet clamping structure includes a stop block mounting groove and a stop block; a stop block mounting groove is opened at the tail end of the plastic shell, the stop block mounting groove is cross-arranged with the wire interface, a stop block is arranged in the stop block mounting groove, the stop block is snap-fitted with the stop block mounting groove, and a wire snap-in is formed between the stop block and the spring sheet insertion groove.

[0011] Furthermore, protrusions are provided on both side surfaces of the stop block, and groove walls on both sides of the installation groove of the stop block are provided with clamping grooves matching with the protrusions.

[0012] Compared with the prior art, the beneficial effects of the present invention are that multiple detection units are integrated into a quick-insertion device to realize integrated detection; the plastic shell can be made in a split or integral manner; a metal spring clamping structure is provided on the plastic shell, which not only clamps the metal spring, but also clamps the connected wire; the plastic shell is provided with a guide structure and a locking structure assembled with the metal bipolar plate, namely a guide column and a cantilever buckle, to ensure accurate and reliable connection between the integrated quick-insertion device and the metal bipolar plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the connection between the traditional metal plate and the metal bipolar plate.

[0014] Figure 2 It is a schematic diagram of an exploded view of the integrated quick-insertion device of Example 1 of the present invention.

[0015] Figure 3 It is a schematic diagram of the overall structure of the integrated quick-insertion device and the cooperation between the buckle and the bayonet according to Example 1 of the present invention.

[0016] Figure 4 It is a schematic diagram of the tail end structure of the integrated quick-insertion device of Example 1 of the present invention and the spring clamping block and the guide interface cooperating to clamp the wire.

[0017] Figure 5 It is a schematic diagram of the assembly of the integrated quick-insertion device and the fins of the metal double-click plate of Example 1 of the present invention.

[0018] Figure 6 This is a schematic diagram of an exploded view of an integrated quick-insertion device according to Embodiment 2 of the present invention.

[0019] The parts in the figure are numbered as follows:

[0020] 1' Metal Pin

[0021] 2' conductor

[0022] 3' Metal bipolar plate

[0023] 1. First plastic shell

[0024] 2. Second plastic shell

[0025] 3 metal reeds

[0026] 4 Buckles

[0027] 5 Guide column groove

[0028] 6 bayonet

[0029] 7 Guide pillars

[0030] 8 reed slots

[0031] 9 reed clamping block

[0032] 10 fin interface

[0033] 11 fin slots

[0034] 12-wire interface

[0035] 13 Guide column

[0036] 14 Cantilever buckle

[0037] 15 wires

[0038] 16Metal bipolar plate

[0039] 17 fins

[0040] 18 guide grooves

[0041] 19 bayonet

[0042] 20 plastic shell

[0043] 21 Stop block installation slot

[0044] 22 stop block

[0045] 23 bulge

[0046] 24 card slots. DETAILED DESCRIPTION

[0047] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand how to practice the present invention. Although the present invention is described in conjunction with its preferred specific embodiments, these embodiments are only illustrative, rather than limiting the scope of the present invention.

[0048] Example 1

[0049] See also Figure 2 An integrated quick-insertion device for voltage detection of metal bipolar plates of fuel cells includes a plastic shell and a metal reed 3. The plastic shell includes a first plastic shell 1 and a second plastic shell 2, and the first plastic shell 1 and the second plastic shell 2 can be made of polymer, resin or other insulating materials.

[0050] The first plastic shell 1 and the second plastic shell 2 are butt-jointed structures. Figure 2 and Figure 3 , a buckle 4 and a guide column groove 5 are provided on the connection surface of the first plastic shell 1, a bayonet 6 matched with the buckle 4 is provided on the second plastic shell 2, and a guide column 7 matched with the guide column groove 5 is provided on the connection surface of the second plastic shell 2. In this embodiment, the number of the buckle 4 and the bayonet 6 are both two, and the number of the guide column groove 5 and the guide column 7 are both six.

[0051] See also Figure 2 and Figure 4 , the connection surfaces of the first plastic shell 1 and the second plastic shell 2 are both provided with a reed insertion groove 8, and a metal reed 3 is installed in each of the reed insertion grooves 8. The front end of each metal reed 3 is in a clip-shaped shape, which is used to connect with the fins on the metal bipolar plate; the rear end of the metal reed 3 is in a U-shaped shape, which is used to connect with the wire 15. In this embodiment, one reed insertion groove 8 is provided on the connection surface of the first plastic shell 1, and two reed insertion grooves 8 are provided on the connection surface of the second plastic shell 2.

[0052] See also Figure 2 and Figure 4, the front ends of the first plastic shell 1 and the second plastic shell 2 are both provided with a fin interface 10 and a fin slot 11, and the fin interface 10 and the fin slot 11 are both for inserting the fins on the metal bipolar plate, and the tail ends of the first plastic shell 1 and the second plastic shell 2 are both provided with a wire interface 12, and the wire interface 12 is for inserting the wire. Among them, the fin interface 10 and the wire interface 12 are both connected to the spring insertion groove 8, and correspond to the front end and the tail end of the metal spring 3 respectively, to ensure that the fins and wires inserted therein are electrically connected to the metal spring 3. In this embodiment, the front end of the first plastic shell 1 is provided with a fin interface 10 and two fin slots 11 located on both sides thereof, and the front end of the second plastic shell 2 is provided with two fin interfaces 10 and a fin slot 11 located between them; the tail end of the first plastic shell 1 is provided with a wire interface 12, and the tail end of the second plastic shell 2 is provided with two wire interfaces 12.

[0053] The spring inserting grooves 8 of the first plastic shell 1 and the second plastic shell 2 are staggered. The connecting surfaces of the first plastic shell 1 and the second plastic shell 2 are both provided with spring pressing blocks 9. The spring pressing blocks 9 on the first plastic shell 1 correspond to the tail end of the spring inserting groove 8 on the second plastic shell 2 and the connected wire interface 12. The spring pressing blocks 9 on the second plastic shell 2 correspond to the tail end of the spring inserting groove 8 on the first plastic shell 1 and the connected wire interface 12. Figure 4 In the dotted line part, the spring pressing block 9 forms a wire clamping joint with the corresponding spring insertion slot 8 tail end and the connected wire interface 12, so that the spring pressing block 9 not only presses the metal spring 3, but also presses the connected wire 15. In this embodiment, two spring pressing blocks 9 are provided on the connection surface of the first plastic shell 1, and one spring pressing block 9 is provided on the connection surface of the second plastic shell 2.

[0054] See also Figure 5 A guide column 13 arranged in a front-to-rear direction is provided on the opposite surface of the connecting surface of the first plastic shell 1, and the tail of the guide column 13 is connected to the first plastic shell 1. The guide column 13 is used to cooperate with the guide groove 18 on one side of the fin 17 on the metal bipolar plate 16 to achieve accurate positioning of the integrated quick-insertion device and the metal bipolar plate 16.

[0055] A cantilever buckle 14 arranged in a front-to-back direction is provided on the opposite surface of the connecting surface of the second plastic shell 2, a buckle is provided at the front of the cantilever buckle 14, the middle part of the cantilever buckle 14 is connected to the second plastic shell 2, the tail of the cantilever buckle 14 is pressed to make the front part away from the second plastic shell 2, and the buckle at the front of the cantilever buckle 14 is used to cooperate with the bayonet 19 on the other side of the fin 17 on the metal bipolar plate 16. By pressing the tail of the cantilever buckle 14, the buckle at the front of the cantilever buckle 14 is matched with the bayonet 19 on the other side of the fin 17 on the metal bipolar plate 16, so as to realize the locking or unlocking of the integrated quick-insertion device and the metal bipolar plate 16.

[0056] Example 2

[0057] See also Figure 6 An integrated quick-insertion device for voltage detection of metal bipolar plates of fuel cells includes a plastic housing 20 and a metal reed 3. The plastic housing 20 is provided with a reed insertion groove, a fin interface, a fin slot, a wire interface 12, a guide column 13, and a cantilever buckle 14, and the structure of this part is the same as that in Example 1.

[0058] The difference from Example 1 is that the plastic housing 20 is integrally injection molded, and the metal spring 3 is inserted into the spring insertion slot 8 from the wire interface 12 at the rear end of the plastic housing 20. The integrated quick-insertion device also includes a stop block 22, a stop block installation slot 21 is provided at the rear end of the plastic housing 20, the stop block installation slot 21 is cross-arranged with the wire interface 12, the stop block 22 is installed in the stop block installation slot 21, protrusions 23 are provided on both sides of the stop block 22, and slots 24 cooperating with the protrusions 23 are provided on both side walls of the stop block installation slot 21.

[0059] A wire clamp is formed between the stop block 22 and the wire interface 12. The stop block 22 not only compresses and stops the metal spring 3, but also compresses the connected wire 15. It can be seen that in addition to the stop function, the stop block 22 plays the same role as the spring clamping block 9 in Example 1.

[0060] It should be noted that the fully described invention may also have a variety of variations and modifications, and is not limited to the specific embodiments described above. The above embodiments are merely illustrative of the invention, not limiting thereof. In short, the scope of protection of the invention should include those variations or substitutions and modifications that are obvious to a person of ordinary skill in the art.

Claims

1. An integrated quick-insert device for voltage detection of metal bipolar plates of fuel cells, characterized in that: It comprises a plastic shell and a metal spring; a spring insertion groove is provided inside the plastic shell, a fin interface and a fin slot are provided at the front end of the plastic shell, a wire interface is provided at the rear end of the plastic shell, and both the fin interface and the wire interface are communicated with the spring insertion groove; the metal spring is installed in the spring insertion groove, the front end of the metal spring is in a clip shape and corresponds to the fin interface, the rear end of the metal spring is in a U shape and corresponds to the wire interface, and a metal spring pressing structure is provided on the plastic shell; guide columns and cantilever buckles are respectively connected to the two sides of the plastic shell, the guide columns and the cantilever buckles are both arranged in the front-back direction, a buckle is provided at the front of the cantilever buckle, the middle part of the cantilever buckle is connected to the plastic shell, and the rear part of the cantilever buckle is used for pressing to keep the front part away from the plastic shell; The plastic shell comprises a first plastic shell and a second plastic shell, the first plastic shell and the second plastic shell are butt-jointed structures, and a spring inserting groove is provided on the connecting surfaces of the first plastic shell and the second plastic shell; The spring inserting grooves of the first plastic shell and the second plastic shell are staggered; the metal spring pressing structure includes a spring pressing block, and the connecting surfaces of the first plastic shell and the second plastic shell are both provided with a spring pressing block, the spring pressing block on the first plastic shell corresponds to the spring inserting groove and the wire interface on the second plastic shell, and the spring pressing block on the second plastic shell corresponds to the spring inserting groove and the wire interface on the first plastic shell, and a wire bayonet is formed between each of the spring pressing blocks and the corresponding spring inserting groove and the wire interface; A buckle is provided on the connection surface of the first plastic shell, and a bayonet matching the buckle is provided on the second plastic shell; A spring insertion groove is provided on the connection surface of the first plastic shell, a fin interface and two fin slots on both sides are provided on the front end of the first plastic shell, and a wire interface is provided at the tail end of the first plastic shell; two spring insertion grooves are provided on the connection surface of the second plastic shell, two fin interfaces and a fin slot in the middle are provided on the front end of the second plastic shell, and two wire interfaces are provided at the tail end of the second plastic shell.

2. The integrated quick-insertion device for voltage detection of metal bipolar plates of fuel cells according to claim 1 is characterized in that: A guide post groove is provided on the connecting surface of the first plastic shell, and a guide post matching with the guide post groove is provided on the connecting surface of the second plastic shell.

3. The integrated quick-insertion device for voltage detection of metal bipolar plates of fuel cells according to claim 1 is characterized in that: A guide column is connected to the surface opposite to the connecting surface of the first plastic shell, and a cantilever buckle is connected to the surface opposite to the connecting surface of the second plastic shell.

4. The integrated quick-insertion device for voltage detection of metal bipolar plates of fuel cells according to claim 1, characterized in that: The metal spring sheet clamping structure includes a stop block mounting groove and a stop block; a stop block mounting groove is opened at the tail end of the plastic shell, the stop block mounting groove is cross-arranged with the wire interface, a stop block is arranged in the stop block mounting groove, the stop block is snap-fitted with the stop block mounting groove, and a wire snap-in is formed between the stop block and the spring sheet insertion groove.

5. The integrated quick-insertion device for voltage detection of metal bipolar plates of fuel cells according to claim 4 is characterized in that: Protrusions are arranged on the two side surfaces of the stop block, and slots cooperating with the protrusions are arranged on the two side groove walls of the installation groove of the stop block.

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