CN218069930U - Anti-collision assembly of galvanic pile and galvanic pile - Google Patents

Abstract

The utility model provides an anticollision subassembly and galvanic pile of galvanic pile, the anticollision subassembly of galvanic pile includes: gas port end plate, blind end plate and connecting piece, connecting piece are connected between gas port end plate and blind end plate, and wherein, the blind end plate is equipped with mounting groove and first anti-disengaging structure, and the connecting piece is close to the tip of blind end plate and is equipped with the assembly pole, and the assembly pole passes the mounting groove, and the connecting piece is equipped with second anti-disengaging structure, through first anti-disengaging structure and the cooperation of second anti-disengaging structure in order to be spacing in the mounting groove with the connecting piece. From this, through set up first anti-disengaging structure and second anti-disengaging structure between connecting piece and blind end board, first anti-disengaging structure and the cooperation of second anti-disengaging structure can restrict connecting piece and blind end board separation, compare with prior art, can avoid crashproof subassembly to become invalid to can improve the safety in utilization of galvanic pile.

Description

Anti-collision assembly of galvanic pile and galvanic pile

Technical Field

The utility model relates to a battery technology field, in particular to galvanic pile of anticollision subassembly of galvanic pile and have this galvanic pile.

Background

The anti-collision assembly of the galvanic pile is used for protecting the galvanic pile when the galvanic pile is violently impacted, so that the probability of damage and fire of the galvanic pile is reduced, and the use safety of the galvanic pile can be improved.

Among the correlation technique, the pile can be installed and use as power battery in the vehicle, the tip of connecting piece is provided with the assembly pole among the current anticollision subassembly, the assembly pole passes to be connected with the fastener after the mounting groove, the connecting piece is suitable for and ends with the blind end board, and the terminal surface that the connecting piece stopped to with the blind end board is the terminal surface of parallel and level, the relative blind end board of connecting piece is portable, can cause the spacing effect between connecting piece and the blind end board poor, when the vehicle was gone on the road of jolting, or when the pile received the vibration of other reasons, the one end that the connecting piece was connected with the blind end board is deviate from the blind end board easily, cause the anticollision subassembly to become invalid, thereby cause the battery to have great potential safety hazard problem in the use.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an anticollision subassembly of galvanic pile, the anticollision subassembly of this galvanic pile is difficult to become invalid to can improve the safety in utilization of galvanic pile.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a bumper assembly for a stack comprising: gas port end plate, blind end plate and connecting piece, the connecting piece is connected the gas port end plate with between the blind end plate, wherein, blind end plate is equipped with mounting groove and first anti-disengaging structure, the connecting piece is close to the tip of blind end plate is equipped with the assembly pole, the assembly pole passes the mounting groove, the connecting piece is equipped with second anti-disengaging structure, through first anti-disengaging structure with the cooperation of second anti-disengaging structure with the connecting piece is spacing in the mounting groove.

In some examples of the present invention, the first anti-separation structure is provided at a position where the mounting groove is close to an end of the connecting member in a length direction of the connecting member.

In some examples of the present invention, one of the first anti-separation structure and the second anti-separation structure is a limiting groove, and the other of the first anti-separation structure and the second anti-separation structure is a limiting protrusion, and the limiting protrusion is embedded in the limiting groove.

In some examples of the invention, the first anti-falling structure is configured as a limiting groove, and the second anti-falling structure is configured as a limiting protrusion.

In some examples of the invention, the blind end plate is provided with a first fixing hole, and the second anti-disengaging structure is provided with a second fixing hole matched with the first fixing hole.

In some examples of the invention, the second fastening hole is configured as an oblong hole extending in a length direction of the connecting piece.

In some examples of the invention, the connecting piece is close to the tip of gas port end plate is equipped with the assembly plate, the assembly plate install in the gas port end plate and with the cooperation is prevented changeing by the gas port end plate.

In some examples of the invention, the assembly plate is provided with a plurality of third fixing holes, the gas port end plate is provided with a plurality of fourth fixing holes, a plurality of the third fixing holes and a plurality of the fourth fixing holes one-to-one.

In some examples of the present invention, the connecting member further includes a weight reduction groove, and an insulating sleeve is provided on an outer side of the connecting member.

Compared with the prior art, the anticollision subassembly of galvanic pile have following advantage:

according to the utility model discloses an anticollision subassembly of pile through set up first anti-disengaging structure and second anti-disengaging structure between connecting piece and blind end board, and the cooperation of first anti-disengaging structure and second anti-disengaging structure can restrict connecting piece and blind end board separation, compares with prior art, can avoid anticollision subassembly inefficacy to can improve the safety in utilization of pile.

Another object of the present invention is to provide a galvanic pile.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a galvanic pile comprises the anti-collision assembly of the galvanic pile.

The advantages of the galvanic pile and the anti-collision assembly of the galvanic pile are the same as those of the prior art, and are not described herein again.

Drawings

The accompanying drawings, which form a part hereof, 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 without undue limitation. In the drawings:

fig. 1 is a schematic diagram of a galvanic pile according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a part of the structure of the anti-collision assembly according to the embodiment of the present invention;

fig. 3 is an enlarged schematic view of another angle of the structure of the collision avoidance module according to the embodiment of the present invention;

fig. 4 is a front view of a connector according to an embodiment of the present invention;

fig. 5 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A in fig. 4.

Description of the reference numerals:

a stack 100; a bumper assembly 200;

a gas port end plate 10; a second groove 101; a fourth fixing hole 102;

a blind endplate 20; a mounting groove 201; a first anti-slip structure 202; a first fixing hole 203; a first groove 204;

a connecting member 30; the assembly rod 301; a second anti-falling structure 302; a second fixing hole 303; a mounting plate 304; a third fixing hole 305; a weight-reducing slot 306; an insulating jacket 307.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 5, the anti-collision assembly 200 of the stack 100 according to the embodiment of the present invention includes: a gas port end plate 10, a blind end plate 20 and a connector 30. The present application will be described below with reference to a stack 100 in which the stack 100 is a fuel cell, wherein the stack 100 may be disposed on a vehicle, and the stack 100 according to an embodiment of the present invention may be used as a power cell of the vehicle. When the cell is a fuel cell, the stack 100 may be formed of a stack of multiple sub-cells. The gas port end plate 10 may be provided with a hydrogen gas inlet, an air inlet, a coolant liquid inlet, etc., and the gas port end plate 10 may be further provided with a waste gas outlet, a coolant liquid outlet, etc.

Can be relative and spaced apart the setting between gas port end plate 10 and the blind end plate 20, can set up between gas port end plate 10 and blind end plate 20 after the multilayer sub-battery stacks, gas port end plate 10 and blind end plate 20 can be pressed with the both ends of the battery after stacking respectively and support, and gas port end plate 10 and blind end plate 20 can improve the structural strength at the battery both ends after the stack to can avoid pile 100 to be impaled when the vehicle receives the striking.

And, the connecting member 30 is connected between the gas port end plate 10 and the blind end plate 20. In some embodiments of the present invention, the connecting member 30 may be configured as a fixed tie bar, and the cross section of the fixed tie bar may be square or circular, etc. In other embodiments of the present invention, the connecting member 30 may be configured as a fixed pulling plate, and the cross section of the fixed pulling plate may be rectangular or oval. Further, the connecting member 30 may be a metal member, so that the connecting member 30 is not easily broken when connecting the gas port end plate 10 and the blind end plate 20.

Further, as shown in fig. 1, a plurality of connecting members 30 may be disposed between the gas port end plate 10 and the blind end plate 20, the plurality of connecting members 30 may be disposed at intervals in the circumferential direction of the anti-collision assembly 200, and the connecting members 30 between the gas port end plate 10 and the blind end plate 20 are disposed in a plurality of sets, so that the connection strength between the gas port end plate 10 and the connecting members 30 and between the blind end plate 20 and the connecting members 30 may be improved, and further, the connection strength between the gas port end plate 10 and the blind end plate 20 may be improved, thereby preventing the gas port end plate 10 and the blind end plate 20 from being separated due to the fracture of the connecting members 30. The connection member 30 may be disposed at an outer side of the stack 100, and during the assembly of the stack 100, a worker may sequentially stack and install the gas port end plate 10, the stacked cells, and the blind end plate 20, and then connect the connection member 30 between the gas port end plate 10 and the blind end plate 20, and the connection member 30 may be spaced apart from the stacked cells to prevent the stacked cells from being electrically conducted outward through the connection member 30, so that the safety of the stack 100 may be improved.

Meanwhile, the blind end plate 20 is provided with a mounting groove 201 and a first anti-slip structure 202, as shown in fig. 1 and fig. 2, in the thickness direction of the blind end plate 20, the mounting groove 201 may penetrate through the blind end plate 20, the thickness direction of the blind end plate 20 may refer to the front-back direction in fig. 1, and a notch of the mounting groove 201 may be disposed on a circumferential side wall of the blind end plate 20. The end of the connecting member 30 close to the blind end plate 20 is provided with an assembly rod 301, it should be noted that the end of the connecting member 30 close to the blind end plate 20 may refer to the right end of the connecting member 30 in fig. 4, the circumferential side wall of the assembly rod 301 may be provided with threads, the assembly rod 301 passes through the mounting groove 201, and the assembly rod 301 may be in threaded engagement with a nut, the mounting groove 201 may allow the assembly rod 301 to penetrate through the blind end plate 20 in the thickness direction of the blind end plate 20, by screwing the nut, the nut may press the blind end plate 20, the nut may push the blind end plate 20 toward the direction of the stacked battery, the gas port end plate 10 and the blind end plate 20 may clamp the stacked battery together, and under the effect of the clamping force, the relative positions between the gas port end plate 10, the blind end plate 20 and the stacked battery may be fixed, thereby the position deviation of the gas port end plate 10, the blind end plate 20 and the stacked battery may be avoided in the use process of the battery 100.

The connecting member 30 is provided with a second anti-slip structure 302, and the connecting member 30 is limited in the mounting groove 201 by the cooperation of the first anti-slip structure 202 and the second anti-slip structure 302. Wherein, in some embodiments of the utility model, can spacing cooperation between first anti-disengaging structure 202 and the second anti-disengaging structure 302, in some other specific embodiments, also can the joint cooperation between first anti-disengaging structure 202 and the second anti-disengaging structure 302, through the cooperation of first anti-disengaging structure 202 and second anti-disengaging structure 302, first anti-disengaging structure 202 and second anti-disengaging structure 302 can prevent that connecting piece 30 is provided with the one end of assembly pole 301 and remove towards the notch of mounting groove 201, thereby can prevent that connecting piece 30 is provided with the one end of assembly pole 301 and deviate from the notch of mounting groove 201, and then can avoid connecting piece 30 and blind end plate 20 separation to cause anticollision subassembly 200 to disintegrate. In addition, through the cooperation of first anti-disengaging structure 202 and second anti-disengaging structure 302 in order to spacing connecting piece 30 in mounting groove 201, can also avoid in pile 100 adjacent two-layer sub battery to take place dislocation or damage to can avoid the battery to appear outage or other circuit problems.

From this, through set up first anti-disengaging structure 202 and second anti-disengaging structure 302 between connecting piece 30 and blind end plate 20, first anti-disengaging structure 202 and the cooperation of second anti-disengaging structure 302 can restrict connecting piece 30 and blind end plate 20 and separate, compare with prior art, can avoid crashproof subassembly 200 to become invalid to can improve the safety in utilization of pile 100.

In some embodiments of the present invention, as shown in fig. 1 and fig. 2, in the length direction of the connecting member 30, the first anti-disengaging structure 202 may be disposed at the end of the mounting groove 201 close to the connecting member 30, the length direction of the connecting member 30 may refer to the front-back direction in fig. 1, and the end of the mounting groove 201 close to the connecting member 30 may refer to the front end of the mounting groove 201 in fig. 1. Through setting up first anti-disengaging structure 202 in the tip that mounting groove 201 is close to connecting piece 30, when assembly pole 301 and mounting groove 201 assemble in place, first anti-disengaging structure 202 can cooperate with second anti-disengaging structure 302, the assembly personnel can use original assembly flow when connecting piece 30 and blind end 20, assembly personnel need not set up more assembly processes for connecting first anti-disengaging structure 202 and second anti-disengaging structure 302 promptly, thereby can avoid the assembly efficiency of pile 100 to reduce.

In some embodiments of the present invention, as shown in fig. 1 and fig. 2, one of the first anti-separation structure 202 and the second anti-separation structure 302 may be configured as a limiting groove, and the other of the first anti-separation structure 202 and the second anti-separation structure 302 may be configured as a limiting protrusion, and the limiting protrusion is embedded in the limiting groove. That is, the first anti-separation structure 202 may be configured as a limiting groove and the second anti-separation structure 302 may be configured as a limiting protrusion, or the second anti-separation structure 302 may be configured as a limiting groove and the first anti-separation structure 202 may be configured as a limiting protrusion. Can spacing cooperation between spacing groove and the spacing arch, particularly, spacing arch can stretch into the spacing inslot, and spacing arch can end with the cell wall of spacing groove, and through making spacing arch and spacing groove's cell wall take place to interfere, spacing groove and spacing protruding cooperation can restrict connecting piece 30 and remove blind end plate 20 relatively to can be spacing in mounting groove 201 with connecting piece 30, and then can avoid connecting piece 30 and blind end plate 20 to separate.

Preferably, as shown in fig. 2, the first anti-separation structure 202 may be configured as a limiting groove, and the second anti-separation structure 302 may be configured as a limiting protrusion. Wherein, the spacing groove can be opened towards the battery after the pile, and the spacing groove can set up in mounting groove 201, and the spacing groove can communicate with mounting groove 201. Second anti-disengaging structure 302 can bulge in the circumference lateral wall of connecting piece 30, at the in-process of assembly anticollision subassembly 200, after assembly pole 301 installed in place in mounting groove 201, through using the blind end plate 20 of press extrusion, blind end plate 20 can remove towards the battery after the stack, can make spacing arch stretch into the spacing inslot, press extrusion blind end plate 20 carries out the pressurize of a period after, through the tightening bolt, the tightening bolt can restrict blind end plate 20 and remove towards the direction of keeping away from the battery after the stack, can make first anti-disengaging structure 202 and second anti-disengaging structure 302 keep the fit state, can realize the technological effect that first anti-disengaging structure 202 and second anti-disengaging structure 302 assemble together. Through the stop cooperation of the limiting protrusion and the limiting groove, the groove wall of the limiting groove can prevent the limiting protrusion from moving toward the outer side of the anti-collision assembly 200, and further can limit the connecting piece 30 from separating from the blind end plate 20.

Further, the one end of the limiting protrusion close to the blind end plate 20 may be provided with a guide inclined plane, and from the direction away from the assembling rod 301 to the direction close to the assembling rod 301 (i.e., the direction from left to right in fig. 1), the cross-sectional area of the limiting protrusion is gradually reduced, and the guide inclined plane can guide the limiting protrusion to extend into the limiting groove, so that the positioning accuracy between the limiting protrusion and the limiting groove can be improved, and the assembling difficulty between the first anti-disengaging structure 202 and the second anti-disengaging structure 302 can also be reduced.

In some embodiments of the present invention, as shown in fig. 1 and 2, the blind end plate 20 may be provided with a first fixing hole 203, and the second anti-disengaging structure 302 may be provided with a second fixing hole 303 engaged with the first fixing hole 203. Specifically, the blind end plate 20 may be recessed toward the stacked cells to form a first groove 204, and the first groove 204 may increase a creepage distance of the blind end plate 20, so that a probability of current breakdown of the blind end plate 20 may be reduced. The first fixing holes 203 may be disposed on the circumferential side wall of the first groove 204, in some specific embodiments of the present invention, the first fixing holes 203 may be disposed as bolt holes, and the second fixing holes 303 may penetrate through the second anti-slip structure 302 in the radial direction of the connecting member 30.

The second anti-slip structure 302 is adapted to abut against the circumferential side wall of the first groove 204, and the bolt can sequentially pass through the second fixing hole 303 and the first fixing hole 203 and then connect the second anti-slip structure 302 with the circumferential side wall of the first groove 204, so that one end of the connecting member 30 close to the blind end plate 20 is fixed to the blind end plate 20. Through the cooperation of first fixed orifices 203 and second fixed orifices 303, can increase the fixed point between connecting piece 30 and the blind end board 20, can make and be connected more reliably between connecting piece 30 and the blind end board 20 to can further avoid connecting piece 30 to deviate from mounting groove 201, and then can further improve anticollision subassembly 200's operational reliability.

In some embodiments of the present invention, as shown in fig. 4, the second fixing hole 303 may be configured as an oblong hole, and the oblong hole is extended and disposed in the length direction of the connecting member 30, that is, the oblong hole may be extended and disposed in the left and right directions in fig. 4. When the bolt stretches into the oblong hole, the bolt can move along the extending direction of the oblong hole, so that the bolt can move in the front-back direction in fig. 1, when each part of the anti-collision assembly 200 generates a size error in the production process or each part generates an accumulated error in the assembly process, the second fixing hole 303 is constructed to be the oblong hole, so that the first fixing hole 203 can be aligned with the second fixing hole 303, and when the second anti-collision structure 302 is ensured to be fixed on the circumferential side wall of the first groove 204, the situation that the anti-collision assembly 200 is loose can be avoided.

In some embodiments of the present invention, as shown in fig. 1, 3 and 4, the end of the connecting member 30 close to the gas port end plate 10 may be provided with a fitting plate 304, the end of the connecting member 30 close to the gas port end plate 10 may refer to the left end of the connecting member 30 in fig. 4, preferably, the fitting plate 304 may be configured as a flat plate-shaped structure, and the fitting plate 304 may extend in the radial direction of the connecting member 30, and the fitting plate 304 is installed on the gas port end plate 10 and is anti-rotation fitted with the gas port end plate 10. Wherein, the gas port end plate 10 may be recessed toward the stack 100 to form a second groove 101, and the second groove 101 may increase the creepage distance of the blind end plate 20, so that the probability that the blind end plate 20 is broken down by current may be reduced. The fitting plate 304 is adapted to abut against a circumferential sidewall of the second groove 101, and the fitting plate 304 may be fixed to the circumferential sidewall of the second groove 101.

Through making the pilot plate 304 and the circumference lateral wall of second recess 101 to stop, when connecting piece 30 rotated along the central axis of connecting piece 30, pilot plate 304 can take place to interfere with the circumference lateral wall of second recess 101, the circumference lateral wall of second recess 101 can restrict pilot plate 304 and rotate, and then can restrict connecting piece 30 and rotate, through pilot plate 304 and the cooperation of the circumference lateral wall of second recess 101, help the assembler to fix a position connecting piece 30 on anticollision subassembly 200, thereby can further improve anticollision subassembly 200's product quality.

In some embodiments of the present invention, as shown in fig. 1, 3 and 4, the assembly plate 304 may be provided with a plurality of third fixing holes 305, the gas port end plate 10 may be provided with a plurality of fourth fixing holes 102, and the plurality of third fixing holes 305 may be disposed in one-to-one correspondence with the plurality of fourth fixing holes 102. For example, as shown in fig. 1, the assembly plate 304 may be provided with two third fixing holes 305, both the two third fixing holes 305 may penetrate through the assembly plate 304, and the fourth fixing hole 102 may be provided on the circumferential side wall of the second groove 101, in some specific embodiments of the present invention, the fourth fixing hole 102 may be provided as a bolt hole. After the fitting plate 304 abuts against the circumferential side wall of the second groove 101, the bolt may pass through the third fixing hole 305 and the fourth fixing hole 102 in sequence to connect the fitting plate 304 and the circumferential side wall of the second groove 101 together, so that the end of the connecting member 30 close to the gas port end plate 10 may be fixed to the gas port end plate 10.

It should be noted that, in some schemes in the prior art, the connecting piece sets up threaded double-screw bolt at the tip that is close to the gas port end plate, and the gas port end plate is provided with the screw hole, makes double-screw bolt and screw hole cooperation through rotating the connecting piece, can make connecting piece and gas port end plate be connected, in some other schemes in the prior art, the tip that is close to the gas port end plate at the connecting piece, gas port end plate all are provided with the screw hole, and in the thickness direction of gas port end plate, the bolt is fixed connecting piece and gas port end plate after passing the screw hole of gas port end plate, the screw hole of connecting piece in proper order. Above-mentioned two kinds of current technical scheme need the connecting piece rotate, perhaps can cause the connecting piece to rotate, all can cause the connecting piece to be difficult to fix a position in anticollision subassembly to still can cause connecting piece bending deformation easily.

And in the utility model discloses in, it is fixed with connecting piece 30 and gas port end plate 10 through using assembly plate 304, compared with the prior art, can avoid connecting piece 30 to rotate around the central axis of connecting piece 30, and, through set up a plurality of third fixed orificess 305 on assembly plate 304, can avoid connecting piece 30 to rotate around the junction between assembly plate 304 and the gas port end plate 10, in addition, it can increase the fixed point between connecting piece 30 and the gas port end plate 10 to set up a plurality of third fixed orificess 305 on assembly plate 304, thereby can make and be connected more reliably between connecting piece 30 and the gas port end plate 10, and then can further improve anticollision subassembly 200's operational reliability.

In some embodiments of the present invention, as shown in fig. 5, the connecting member 30 may further be provided with a weight-reducing groove 306, and the outer side of the connecting member 30 may be sleeved with an insulating sleeve 307. The weight-reducing grooves 306 can be arranged on the circumferential side wall of the connecting piece 30, the weight-reducing grooves 306 can be arranged in the length direction of the connecting piece 30 in an extending mode, the weight-reducing grooves 306 are arranged on the connecting piece 30, the weight of the connecting piece 30 can be effectively reduced through the weight-reducing grooves 306, on the basis that the strength of the connecting piece 30 is guaranteed to meet the design requirements of the anti-collision assembly 200, the light-weight design of the anti-collision assembly 200 can be achieved, the material usage amount of the connecting piece 30 can be saved, and therefore the production cost of the connecting piece 30 can be reduced. It should be noted that the open ends of the lightening slots 306 may be disposed toward the outside of the bumper assembly 200 during the assembly of the battery, which may provide greater impact resistance to the connecting member 30.

The insulating sleeve 307 is made of an insulating material, and in some embodiments, the insulating sleeve 307 may be configured as a rubber sleeve, and the rubber sleeve may allow the connecting member 30 made of metal to be spaced apart from the stack 100, and at the same time, the rubber sleeve may prevent current from being transmitted to the outside of the stack 100 through the connecting member 30, so that battery leakage or short circuit may be prevented. It should be noted that the connector 30 can be installed into the insulating sleeve 307 from an end away from the first anti-separation structure 202, so that the difficulty in assembling between the connector 30 and the insulating sleeve 307 can be reduced.

According to the utility model discloses cell stack 100, including the anticollision subassembly 200 of above-mentioned embodiment, through set up first anti-disengaging structure 202 and second anti-disengaging structure 302 between the connecting piece 30 of anticollision subassembly 200 and blind end plate 20, first anti-disengaging structure 202 and the cooperation of second anti-disengaging structure 302 can restrict connecting piece 30 and the separation of blind end plate 20, compare with prior art, can avoid anticollision subassembly 200 to become invalid to can improve the safety in utilization of cell stack 100.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An anti-collision assembly of a galvanic pile, comprising:

gas port end plate (10), blind end plate (20) and connecting piece (30), connecting piece (30) are connected gas port end plate (10) with between blind end plate (20), wherein, blind end plate (20) are equipped with mounting groove (201) and first anti-disengaging structure (202), connecting piece (30) are close to the tip of blind end plate (20) is equipped with assembly pole (301), assembly pole (301) are passed mounting groove (201), connecting piece (30) are equipped with second anti-disengaging structure (302), through first anti-disengaging structure (202) with second anti-disengaging structure (302) cooperation is in order to incite somebody to action connecting piece (30) spacing in mounting groove (201).

2. The anti-collision assembly of the galvanic pile according to claim 1, wherein the first anti-slip structure (202) is disposed at an end of the installation groove (201) close to the connecting member (30) in a length direction of the connecting member (30).

3. The stack bumper assembly according to claim 1, wherein one of the first and second anti-separation structures (202, 302) is configured as a limiting groove, and the other of the first and second anti-separation structures (202, 302) is configured as a limiting protrusion embedded in the limiting groove.

4. The stack bumper assembly of claim 3, wherein the first anti-separation structure (202) is configured as a limiting groove and the second anti-separation structure (302) is configured as a limiting protrusion.

5. The anti-collision assembly of the galvanic pile according to claim 1, characterized in that the blind end plate (20) is provided with a first fixing hole (203), and the second anti-slip structure (302) is provided with a second fixing hole (303) which is matched with the first fixing hole (203).

6. The stack module according to claim 5, wherein the second fastening hole (303) is configured as an oblong hole extending in the length direction of the connecting piece (30).

7. The anti-collision assembly of the galvanic pile according to claim 1, characterized in that the end of the connecting member (30) near the gas port end plate (10) is provided with a fitting plate (304), and the fitting plate (304) is mounted on the gas port end plate (10) and is in anti-rotation fit with the gas port end plate (10).

8. The anti-collision assembly of the stack according to claim 7, characterized in that the assembly plate (304) is provided with a plurality of third fixing holes (305), the air port end plate (10) is provided with a plurality of fourth fixing holes (102), and the plurality of third fixing holes (305) and the plurality of fourth fixing holes (102) correspond one to one.

9. The anti-collision assembly of the galvanic pile according to claim 1, characterized in that the connecting member (30) is further provided with a weight-reducing groove (306), and an insulating sleeve (307) is sleeved outside the connecting member (30).

10. A galvanic pile characterized by comprising a collision avoidance assembly of the galvanic pile of any of claims 1-9.

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