Patrol elastic sheet and bipolar plate auxiliary structure

Abstract

The utility model belongs to the field of circuit connectors, and particularly relates to an inspection elastic sheet and bipolar plate auxiliary structure, which comprises a first pinching handle and a second pinching handle which are connected at the end parts, and the second pinching handle comprises a first elastic deformation section, a second elastic deformation section and a third elastic deformation section which are connected in sequence; the included angle between the first elastic deformation section and the first pinching handle is an acute angle, the second elastic deformation section inclines towards the direction close to the first pinching handle, and the included angle between the second elastic deformation section and the first elastic deformation section ranges from 0 degree to 150 degrees. A protruding part protruding in the direction away from the first pinching handle is formed at the connecting position of the first elastic deformation section and the second elastic deformation section. And when the first pinching handle and / or the second pinching handle are / is extruded, the first pinching handle and the second pinching handle elastically get close to or get away from each other. Effective connection between the inspection elastic sheet and the bipolar plate auxiliary structure is realized by adopting an elastic insertion mode, so that the inspection elastic sheet is prevented from being fixed by using adhesives such as super glue, the production process is simplified, the material cost and the labor cost are remarkably reduced, and the maintenance work cost is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of circuit connector, especially relates to a kind of patrol inspection spring and bipolar plate auxiliary structure. BACKGROUND

[0002] The core component of hydrogen fuel cell in the development of domestic new energy vehicles is stack, which is stacked by many bipolar plates. The bipolar plates are generally made of metal materials, graphite materials or composite materials. During the operation of the stack, a patrol device is needed to patrol each bipolar plate in the stack to monitor the working state of the bipolar plate in real time. The patrol spring is a part that connects the patrol device and the bipolar plate. One end of the patrol spring is inserted into the bipolar plate, and the other end is connected with the patrol device. Most of the current patrol springs are in the shape of a long strip. A long strip-shaped hole is opened on the bipolar plate, and the strip-shaped patrol spring is inserted into the hole, and then glue is poured to fix it. In order to ensure reliable adhesion strength, strong glue with very strong adhesion is usually selected.

[0003] However, the material cost and labor cost of pouring strong glue into the hole of the bipolar plate to fix the patrol spring are high, and the connection effect is easily affected by the deviation during the process of adhering the patrol spring. The bipolar plate and the patrol spring cannot be disassembled after being fixed by strong glue. SUMMARY

[0004] The technical problem to be solved by the utility model is that the pouring of strong glue into the hole of the bipolar plate to fix the patrol spring in the prior art results in high material cost and labor cost, and the connection effect is easily affected by the deviation during the process of adhering the patrol spring, and the bipolar plate and the patrol spring cannot be disassembled.

[0005] In view of the above problems, the utility model provides a kind of patrol inspection spring, including first pinch handle and second pinch handle of end connection, second pinch handle includes first elastic deformation section, second elastic deformation section and third elastic deformation section connected in sequence;

[0006] The included angle between the first elastic deformation section and the first pinch handle is an acute angle, the second elastic deformation section is inclined towards the first pinch handle, the included angle between the second elastic deformation section and the first elastic deformation section is 0° to 150°, so that the connection position of the first elastic deformation section and the second elastic deformation section forms a convex part protruding away from the first pinch handle;

[0007] When the first pinch handle and / or the second pinch handle are subjected to a pressing force, the first pinch handle and the second pinch handle elastically approach or elastically move away.

[0008] Preferably, the included angle between the second elastic deformation section and the first elastic deformation section is 90° to 150°.

[0009] Preferably, the included angle between the third elastic deformation section and the second elastic deformation section is 0-150 degrees.

[0010] Preferably, the third elastic deformation section is inclined away from the first pinch handle, and the included angle between the third elastic deformation section and the second elastic deformation section is 90-150 degrees.

[0011] Preferably, each of the connections between the first pinch handle and the first elastic deformation section, between the first elastic deformation section and the second elastic deformation section, and between the second elastic deformation section and the third elastic deformation section is provided with a circular arc section.

[0012] Preferably, the materials of the first pinch handle, the first elastic deformation section, the second elastic deformation section, and the third elastic deformation section are all copper.

[0013] Preferably, the first pinch handle, the first elastic deformation section, the second elastic deformation section, and the second pinch handle are integrally formed.

[0014] The utility model also provides a kind of bipolar plate auxiliary structure, including bipolar plate, is set in the patrol and examines slot in bipolar plate, and the patrol and examines slot is used to insert the above-mentioned patrol and examines leaf, when first pinch handle and / or second pinch handle are extruded, first pinch handle and second pinch handle are elastically close, and patrol and examine leaf can be inserted into patrol and examine slot, and the outer wall of first pinch handle, first elastic deformation section and second elastic deformation section is all attached with the slot wall of patrol and examine slot after the elastic recovery of patrol and examine leaf.

[0015] Preferably, the depth of the slot is greater than or equal to the height of the patrol and examine leaf.

[0016] Compared with the prior art, the utility model embodiment one kind of patrol and examine leaf and bipolar plate auxiliary structure have the beneficial effects that:

[0017] When inserting the patrol and examine leaf into the patrol and examine slot, the operator applies extrusion force to the first pinch handle and / or the second pinch handle, so that the patrol and examine leaf is slightly deformed with the first pinch handle and the second pinch handle approaching each other. At this time, the height between the protruding part of the patrol and examine leaf and the first pinch handle is reduced, and the patrol and examine leaf can pass through the slot opening of the patrol and examine slot, so that the patrol and examine leaf can be inserted into the patrol and examine slot. After the patrol and examine leaf is inserted into the patrol and examine slot, the patrol and examine leaf is elastically reset without external force, and the spacing between the protruding part and the first pinch handle is restored to be greater than the size of the slot opening of the patrol and examine slot, so that the patrol and examine leaf is fixed in the patrol and examine slot. The effective connection between the patrol and examine leaf and the bipolar plate auxiliary structure is realized by adopting the elastic insertion form, the use of adhesives such as strong glue to fix the patrol and examine leaf is avoided, the production process is simplified, and the material cost and labor cost are significantly reduced. When the patrol and examine leaf needs to be replaced or repaired, the patrol and examine leaf can be removed only by being elastically deformed again, thereby reducing the cost of maintenance work. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure schematic view of the inspection elastic sheet of the embodiment of the utility model;

[0019] Figure 2 is a structure schematic view of the inspection elastic sheet cooperating with the bipolar plate auxiliary structure of the embodiment of the utility model;

[0020] Figure 3 is a structure schematic view of the bipolar plate auxiliary structure of the embodiment of the utility model.

[0021] In the figure, 1, first pinch handle; 2, second pinch handle; 3, first elastic deformation section; 4, second elastic deformation section; 5, third elastic deformation section; 6, convex part; 7, inspection slot. Specific implementation

[0022] The specific implementation of the utility model will be described in further detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0023] As shown in Figure 1 and Figure 2 , the utility model embodiment preferred embodiment's one kind of inspection elastic sheet, including first pinch handle 1 and second pinch handle 2 of end connection, second pinch handle 2 includes first elastic deformation section 3, second elastic deformation section 4 and third elastic deformation section 5 connected in sequence;

[0024] The included angle between the first elastic deformation section 3 and the first pinch handle 1 is an acute angle, so that the extension direction of the first elastic deformation section 3 and the first pinch handle 1 is the same, the second elastic deformation section 4 is inclined to the direction close to the first pinch handle 1, and the included angle between the second elastic deformation section 4 and the first elastic deformation section 3 is 0 ° to 150 °, so that the connection position of the first elastic deformation section 3 and the second elastic deformation section 4 forms a convex part 6 protruding in the direction away from the first pinch handle 1, and the convex part 6 can be clamped in the inspection slot 7; when the first pinch handle 1 and / or the second pinch handle 2 are subjected to extrusion force, the first pinch handle 1 and the second pinch handle 2 are elastically close or elastically far away.

[0025] When the inspection elastic sheet is inserted into the inspection slot 7, the operator applies extrusion force to the first pinch handle 1 and / or the second pinch handle 2, so that the inspection elastic sheet is slightly deformed by the mutual approach of the first pinch handle 1 and the second pinch handle 2, at this time, the height between the convex part 6 of the inspection elastic sheet and the first pinch handle 1 is reduced, which can pass through the slot of the inspection slot 7, so that the inspection elastic sheet can be inserted into the inspection slot 7, after the inspection elastic sheet is inserted into the inspection slot 7, the inspection elastic sheet loses the effect of external force and occurs elastic reset, the spacing between the convex part 6 and the first pinch handle 1 is restored and thus greater than the size of the slot of the inspection slot 7, so that the inspection elastic sheet is fixed in the inspection slot 7.

[0026] Specifically, the included angle between the second elastic deformation section 4 and the first elastic deformation section 3 is 90° to 150°, so that the convex portion forms a V-shaped structure, so that the inspection spring piece can be deformed more easily and uniformly under stress.

[0027] Specifically, the included angle between the third elastic deformation section 5 and the second elastic deformation section 4 is 0° to 150°, and the third elastic deformation section 5 forms a handle convenient for holding, so that the operator can conveniently hold the third elastic deformation section 5 and the first pinch handle 1 at the same time to apply force to the inspection spring piece.

[0028] Specifically, the third elastic deformation section 5 is inclined away from the first pinch handle 1, and the included angle between the third elastic deformation section 5 and the second elastic deformation section 4 is 90° to 150°. Ensure that the third elastic deformation section 5 is inclined outward, which improves the comfort and convenience of the operator holding the third elastic deformation section 5 and the first pinch handle 1 at the same time.

[0029] Specifically, the connection between the first pinch handle 1 and the first elastic deformation section 3, the first elastic deformation section 3 and the second elastic deformation section 4, and the second elastic deformation section 4 and the third elastic deformation section 5 are all provided with a circular arc section, which is used to smoothly transition and connect, avoiding sharp corners between the connection sections, so that stress concentration does not occur when stressed, improving the strength and durability of the inspection spring piece, and also improving the appearance of the inspection spring piece.

[0030] Specifically, the materials of the first pinch handle 1 and the second pinch handle 2 are both copper.

[0031] Specifically, the first pinch handle 1, the first elastic deformation section 3, the second elastic deformation section 4, and the second pinch handle 2 are integrally formed, which enhances the overall structural strength and stability of the inspection spring piece.

[0032] The utility model also provides a kind of bipolar plate auxiliary structure, including bipolar plate, is set in the inspection slot 7 in bipolar plate, inspection slot 7 is used to insert the above-mentioned inspection spring piece, when the first pinch handle 1 and the second pinch handle 2 of inspection spring piece are close to each other, the height between the convex portion 6 of inspection spring piece and the first pinch handle 1 is reduced, so that inspection spring piece can pass the slot of inspection slot 7, after inserting inspection spring piece into inspection slot 7, inspection spring piece loses the effect of external force and occurs elastic reset, the spacing between convex portion 6 and the first pinch handle 1 recovers and is thus greater than the size of the slot of inspection slot 7, so that inspection spring piece is fixed in inspection slot 7, and the outer wall of the first pinch handle 1, the first elastic deformation section 3 and the second elastic deformation section 4 all are attached with the slot wall of inspection slot 7.Effectively improve the connection stability and reliability between inspection spring piece and bipolar plate, ensure the tightness of attachment.

[0033] Specifically, the slot depth of the inspection slot 7 is greater than the height of the inspection spring. The slot depth of the slot is slightly greater than the height of the plug-in part, so that the inspection spring is more smooth when being inserted and pulled out, and the resistance and wear during the insertion and pulling out process are reduced.

[0034] In other embodiments, the slot depth of the inspection slot 7 is equal to the height of the inspection spring, ensuring that the inspection spring is tightly fitted after being inserted into the slot.

[0035] In summary, the utility model discloses an embodiment provides a kind of inspection spring and bipolar plate auxiliary structure, by using the form of elastic insertion, the effective connection of inspection spring and bipolar plate auxiliary structure is realized, avoid using strong glue and other adhesives to fix inspection spring, simplify production process, significantly reduce material cost and manpower cost, when inspection spring needs to be replaced or maintained, only need to be elastically deformed again to be able to be removed, reduce the cost of maintenance work.

[0036] The above is only preferred embodiment of the utility model, it should be pointed out, for the ordinary skilled person in the prior art, without departing from the technical principle of the utility model, can make a number of improvements and substitutions, these improvements and substitutions also should be considered as the protection range of the utility model.

Claims

1. A type of inspection shrapnel, characterized in that: The first pinch handle (1) and the second pinch handle (2) are connected, and the second pinch handle (2) comprises a first elastic deformation section (3), a second elastic deformation section (4) and a third elastic deformation section (5) connected in sequence. The included angle between the first elastic deformation section (3) and the first pinch handle (1) is an acute angle, the second elastic deformation section (4) is inclined towards the first pinch handle (1), and the included angle between the second elastic deformation section (4) and the first elastic deformation section (3) is 0-150°, so that the connection position of the first elastic deformation section (3) and the second elastic deformation section (4) forms a convex portion (6) protruding away from the first pinch handle (1). When the first pinch handle (1) and / or the second pinch handle (2) are subjected to a pressing force, the first pinch handle (1) and the second pinch handle (2) elastically approach or elastically move away.

2. The inspection round according to claim 1, characterized in that: The included angle between the second elastic deformation section (4) and the first elastic deformation section (3) is 90-150°.

3. A patrol dart according to claim 2, wherein: The included angle between the third elastic deformation section (5) and the second elastic deformation section (4) is 0-150°.

4. The inspection round according to claim 3, characterized in that: The third elastic deformation section (5) is inclined away from the first pinch handle (1), and the included angle between the third elastic deformation section (5) and the second elastic deformation section (4) is 90-150°.

5. The inspection round according to claim 1, characterized in that: Arc sections are arranged at the connections between the first pinch handle (1) and the first elastic deformation section (3), the first elastic deformation section (3) and the second elastic deformation section (4), and the second elastic deformation section (4) and the third elastic deformation section (5).

6. A patrol round according to any one of claims 1-5, characterized in that: The materials of the first pinch handle (1), the first elastic deformation section (3), the second elastic deformation section (4) and the third elastic deformation section (5) are copper.

7. A patrol round according to claim 6, characterized in that: The first pinch handle (1), the first elastic deformation section (3), the second elastic deformation section (4) and the second pinch handle (2) are integrally formed.

8. A bipolar plate auxiliary structure, characterized by: The bipolar plate comprises an inspection slot (7) arranged therein, and the inspection slot (7) is used for inserting the inspection spring piece of any one of claims 1-7. When the first pinch handle (1) and / or the second pinch handle (2) are subjected to a pressing force, the first pinch handle (1) and the second pinch handle (2) elastically approach, the inspection spring piece can be inserted into the inspection slot (7), and the outer walls of the first pinch handle (1), the first elastic deformation section (3) and the second elastic deformation section (4) are attached to the slot wall of the inspection slot (7) after the elastic recovery of the inspection spring piece.

9. A bipolar plate auxiliary structure according to claim 8, characterized by: The slot depth of the inspection slot (7) is greater than or equal to the height of the inspection spring piece.

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