CN217182218U - Protection device for battery stack bipolar plate tap - Google Patents

Abstract

The utility model discloses a protection device that bipolar plate of battery stack was taken a percentage relates to battery technical field, be used for installing on the battery stack, the battery stack includes upper end plate and lower end plate, and expose the bipolar plate between upper end plate and lower end plate and take a percentage with the current collection board, protection device includes upper segment structure and hypomere structure, wherein, slidable ground is connected between upper segment structure and the hypomere structure, upper segment structure is connected with the upper end plate, the hypomere structure is connected with lower end plate, upper segment structure and hypomere are structural to have seted up one respectively and are used for taking a percentage matched with mass flow board groove with the bipolar plate, the bottom of upper segment structure and hypomere structure all is equipped with takes a percentage matched with protection groove with the bipolar plate. The protection device has the advantages that the bipolar plate can be protected in all directions in left and right directions and in front three dimensions, particularly, the screw penetrating process and the inter-process transportation process which are easy to cause tap damage are obvious in protection effect, and the length direction of the protection device can be changed in real time along with the electric pile press mounting process.

Description

Protection device for battery stack bipolar plate tap

Technical Field

The utility model relates to the technical field of battery, especially, relate to a protection device that bipolar plate of battery stack was taken a percentage.

Background

Due to the detection requirement, square parts of 75X55mm are exposed outside the stack after the stack is assembled, and the stack is easy to break in the process of station switching, screw rod installation and transfer, and once the situation occurs, the whole stack is scrapped.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protection device that bipolar plate of battery stack was taken a percentage for solve above-mentioned technical problem.

The utility model adopts the technical scheme as follows:

a protection device for a bipolar plate tap of a cell stack is used for being installed on the cell stack, the cell stack comprises an upper end plate, a lower end plate and a bipolar plate tap and a current collecting plate tap exposed between the upper end plate and the lower end plate, the protection device comprises an upper section structure and a lower section structure, the upper section structure and the lower section structure are connected in a sliding mode, the upper section structure is connected with the upper end plate, the lower section structure is connected with the lower end plate, current collecting plate grooves matched with the bipolar plate tap are formed in the upper section structure and the lower section structure respectively, and protection grooves matched with the bipolar plate tap are formed in the bottoms of the upper section structure and the lower section structure.

Preferably, the upper section structure is provided with a displacement chute, and the displacement chute is arranged along the length direction of the upper section structure.

As a further preference, at least one pin is arranged on the lower segment structure, and the pin is slidably arranged in the displacement chute.

Preferably, one end of the upper section structure is provided with a first threaded hole.

Preferably, one end of the lower segment structure is provided with a second threaded hole.

Preferably, the lower segment structure is provided with an inner groove, and the upper segment structure is slidably arranged in the inner groove.

Preferably, the surface of the displacement chute is provided with a plurality of positioning grooves, and the plurality of positioning grooves are distributed along the length direction of the displacement chute.

Preferably, the protection device further comprises side protection plates, two side protection plates are arranged on two sides of the bottoms of the upper section structure and the lower section structure, and the protection groove is formed between the two side protection plates.

The technical scheme has the following advantages or beneficial effects:

the utility model discloses well battery stack bipolar plate takes a percentage protection device adopts two segmentation groove type structure to combine to constitute, can accomplish to take a percentage to bipolar plate about and preceding three dimension carry out all-round protection, especially easily cause take a percentage the protection effect in wearing screw rod process and the process transportation between the damage obvious, and protection device's length direction can change along with the pile pressure equipment process in real time.

Drawings

Fig. 1 is a schematic structural diagram of a protection device for a stack bipolar plate tap in the invention;

fig. 2 is a side view of a protection device for a stack bipolar plate tap according to the present invention;

FIG. 3 is a schematic structural diagram of an upper structure of the present invention;

FIG. 4 is a schematic side view of the upper structure of the present invention;

fig. 5 is a schematic structural diagram of the middle-lower segment structure of the present invention.

In the figure: 1. an upper structure; 2. a lower segment structure; 3. a collector plate tank; 4. a displacement chute; 5. a pin; 6. a first threaded hole; 7. a second threaded hole; 8. a side protection plate.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a schematic structural diagram of a protection device for a stack bipolar plate tap in the invention; fig. 2 is a side view of a protection device for a stack bipolar plate tap according to the present invention; FIG. 3 is a schematic structural diagram of an upper structure of the present invention; FIG. 4 is a schematic side view of the upper structure of the present invention;

fig. 5 is a schematic structural diagram of the middle-lower segment structure of the present invention, please refer to fig. 1 to 5, which illustrate a preferred embodiment, illustrating a protection device for tapping a bipolar plate of a stack, for being installed on the stack, the stack includes an upper end plate and a lower end plate, and the bipolar plate exposed before the upper end plate and the lower end plate taps and taps a current collecting plate, the protection device includes an upper segment structure 1 and a lower segment structure 2, wherein the upper segment structure 1 is slidably connected with the lower segment structure 2, the upper segment structure 1 is connected with the upper end plate, the lower segment structure 2 is connected with the lower end plate, the upper segment structure 1 and the lower segment structure 2 are respectively provided with a current collecting plate groove 3 for tapping a matched with the bipolar plate, and the bottoms of the upper segment structure 1 and the lower segment structure 2 are both provided with protection grooves for tapping a matched with the bipolar plate. The protection device in the embodiment is mainly used for protecting the exposed bipolar plate tap after the cell stack is stacked, and the using stage is protection in a circulation stage from the stacking completion to the installation of the upper end plate to the before the cell stack liquid filling test. The upper structure 1 and the lower structure 2 are both strip-shaped plate-shaped structures, and are made of metal materials or hard plastics, the relative position between the upper structure 1 and the lower structure 2 can be adjusted, the overall length of the protection device can be conveniently adjusted, and the protection device can adapt to cell stacks of different types. The upper structure 1 and the lower structure 2 are detachably connected with the upper end plate and the lower end plate of the cell stack. The bipolar plate tap is used for being inserted into the collector plate groove 3, the width of the collector plate groove 3 in the upper-section structure 1 is equal to the width +2mm of the collector plate tap, the height is 15mm, and the tolerance degree is provided for the stacking height of the battery while the left position and the right position of the protection device are ensured during installation. The width and thickness of the protective device in this embodiment can be selected as desired. The width of the collector plate slot 3 in the lower segment structure 2 is equal to the width +2mm of the collector plate tap, and the height is equal to the thickness of the collector plate for positioning when the protection device is installed.

Further, as a preferred embodiment, the upper structure 1 is provided with a displacement chute 4, and the displacement chute 4 is disposed along the length direction of the upper structure 1.

Further, as a preferred embodiment, at least one pin 5 is disposed on the lower structure 2, and the pin 5 is slidably disposed in the displacement chute 4. In this embodiment, the upper structure 1 and the lower structure 2 are in sliding fit with each other through the two pins 5 and the displacement sliding groove 4, so that the length of the protection device can be adjusted, and the protection device can be guaranteed to be capable of changing in real time in the process of press mounting of the galvanic pile.

Further, as a preferred embodiment, one end of the upper structure 1 is provided with a first threaded hole 6.

Further, as a preferred embodiment, one end of the lower structure 2 is provided with a second threaded hole 7. In this embodiment, the upper structure 1 is matched with the M6 screw hole on the upper end plate through the first threaded hole 6, and is fixed with the upper end plate through a bolt. And the second threaded hole 7 on the lower section structure 2 is matched with the M6 threaded hole on the lower end plate, and the lower section structure 2 is fixed on the lower end plate through bolts.

Further, as a preferred embodiment, the lower structure 2 has an inner groove, and the upper structure 1 is slidably disposed in the inner groove. In this embodiment, the inner groove is a strip-shaped groove, and is disposed along the length direction of the lower segment structure 2, and is used for sliding the upper segment structure 1.

Further, as a preferred embodiment, the surface of the displacement chute 4 is provided with a plurality of positioning grooves, and the plurality of positioning grooves are distributed along the length direction of the displacement chute 4. Constant head tank and displacement spout 4 intercommunication in this embodiment, after upper segment structure 1 removes appointed position to hypomere structure 2 relatively, extrudees pin 5 downwards for in the nut of pin 5 gets into the constant head tank, avoid pin 5 to slide in displacement spout 4, thereby realize fixing upper segment structure 1 and hypomere structure 2.

Further, as a preferred embodiment, the device further comprises side position protection plates 8, two sides of the bottom of each of the upper structure 1 and the lower structure 2 are provided with two side position protection plates 8, and a protection groove is formed between the two side position protection plates 8. In this embodiment, two side position protection boards 8 parallel arrangement, the protection trench is located between two side position protection boards 8, and the protection trench can be done to take a percentage to bipolar plate and left and right and preceding three dimension carry out all-round protection. The groove width of the protective groove is +10mm of the tap width of the bipolar plate.

The protection device in this embodiment, after the battery pile finishes piling up the process, can install before transporting to next process screw installation. According to the real-time stacking height of the cell stack, the protection device is pulled up and down to enable the height distance between the current collecting plate slot 3 in the upper section structure 1 and the tap height of the upper current collecting plate of the cell stack to be consistent, and the height distance between the current collecting plate slot 3 in the lower section structure 2 and the tap height of the lower current collecting plate to be consistent; the left and right positions of the taps of the current collecting plate are taken as installation references (the taps of the current collecting plate can be installed by strictly aligning the left and right positions) so as to prevent the taps of the current collecting plate from being accidentally damaged by the protection device; then the protection device is pushed inwards along the collector plate until the protection device is contacted with the plate frame; and fixing the protective device on the upper end plate and the lower end plate by using M6 bolts respectively to finish the installation of the device.

The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.

Claims (8)

1. A protection device for a bipolar plate tap of a cell stack is used for being installed on the cell stack, the cell stack comprises an upper end plate, a lower end plate and a bipolar plate tap and a current collecting plate tap exposed between the upper end plate and the lower end plate, and is characterized in that the protection device comprises an upper section structure and a lower section structure, wherein the upper section structure and the lower section structure are connected in a sliding mode, the upper section structure is connected with the upper end plate, the lower section structure is connected with the lower end plate, the bipolar plate tap and the current collecting plate groove matched with the bipolar plate tap are respectively formed in the upper section structure and the lower section structure, and protection grooves matched with the taps are formed in the bottoms of the upper section structure and the lower section structure.

2. The protection device for a stack bipolar plate tap as claimed in claim 1, wherein the upper structure is formed with a displacement sliding groove, and the displacement sliding groove is disposed along a length direction of the upper structure.

3. The stack bipolar plate tab protector of claim 2 wherein said lower structure has at least one pin slidably disposed within said displacement slide.

4. The stack bipolar plate tab protector of claim 1 wherein one end of said upper segment structure defines a first threaded aperture.

5. The protection device for a stack bipolar plate tap as claimed in claim 1, wherein one end of the lower structure is provided with a second threaded hole.

6. The stack bipolar plate tab protector of claim 1 wherein said lower segment structure defines an internal groove and said upper segment structure is slidably disposed within said internal groove.

7. The protection device for a stack bipolar plate tap as claimed in claim 3, wherein a plurality of positioning grooves are formed on the surface of the displacement chute, and the plurality of positioning grooves are distributed along the length direction of the displacement chute.

8. The protection device for a stack bipolar plate tap as claimed in claim 1, further comprising side protection plates, wherein two side protection plates are disposed on both sides of the bottom of the upper stage structure and the lower stage structure, and the protection groove is formed between the two side protection plates.

Images