CN219121480U

CN219121480U - Gas production testing device during cell pre-charging

Info

Publication number: CN219121480U
Application number: CN202223138887.XU
Authority: CN
Inventors: 赵敬华; 刘艺
Original assignee: Tianjin EV Energies Co Ltd
Current assignee: Tianjin EV Energies Co Ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-06-02
Anticipated expiration: 2032-11-25

Abstract

The utility model provides a gas production testing device during cell pre-charging, which comprises a sealing pressing mechanism, a liquid storage sealing tank mechanism and a weighing mechanism, wherein one end of the sealing pressing mechanism is fixedly connected with the liquid storage sealing tank mechanism, and one end of the liquid storage sealing tank mechanism is fixedly connected with the weighing mechanism; the utility model relates to a gas production testing device used for pre-charging a battery cell, which comprises a battery cell fixing assembly, a first probe moving assembly, a second probe moving assembly, a supporting column and a plugging column, wherein the first probe moving assembly and the second probe moving assembly are respectively and fixedly arranged on two sides of the battery cell fixing assembly, the supporting column is fixedly arranged on the first probe moving assembly, and the plugging column is fixedly arranged on the second probe moving assembly.

Description

Gas production testing device during cell pre-charging

Technical Field

The utility model belongs to the field of power cell pack production, and particularly relates to a gas production testing device during cell pre-charging.

Background

The scheme of the development power line in the prior art is that a water discharge method is adopted, a battery cell liquid injection hole is sealed, a water pipe is connected to a first water cup, a water pipe is connected to a second water cup, gas generated during battery cell pre-charging generates pressure, water pressure in the first water cup is supplied to the second water cup, and gas production rate is calculated by measuring the weight of water in the second water cup. The prior proposal ignores the volumes in the battery cell shell and the water pipe, the gas production tested by the method is smaller than the actual gas production measurement deviation of the battery, and the gas production during the battery cell pre-charging can not be continuously monitored during the pre-charging.

Disclosure of Invention

In view of the above, the utility model aims to provide a device for testing the gas production during cell pre-charging, which is used for solving the problems that the gas production tested in the prior art is smaller than the actual gas production of a battery, the measured value deviation is large, and the gas production during cell pre-charging cannot be continuously monitored during pre-charging.

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

the utility model provides a gas production testing arrangement when electric core is prefilled, includes sealed hold-down mechanism, stock solution seal pot mechanism and weighing machine construct, and sealed hold-down mechanism one end fixed connection stock solution seal pot mechanism, stock solution seal pot mechanism one end fixed connection weighing machine constructs; the sealing and compacting mechanism comprises a battery core fixing assembly, a first probe moving assembly, a second probe moving assembly, a supporting column and a plugging column, wherein the first probe moving assembly and the second probe moving assembly are fixedly installed on two sides of the battery core fixing assembly respectively, the supporting column is fixedly installed on the first probe moving assembly, and the plugging column is fixedly installed on the second probe moving assembly.

Further, electric core fixed subassembly includes backup pad, riser, direction locating piece, sealed plug and electric core, and backup pad both sides are fixed mounting riser respectively, backup pad upside fixed mounting direction locating piece, and electric core demountable installation is on the direction locating piece, and electric core one side is equipped with anodal utmost point post, and the opposite side is equipped with the negative pole utmost point post, and anodal utmost point post one side is equipped with annotates the liquid hole, annotates the downthehole fixed mounting sealed plug of liquid.

Further, the first probe removes the subassembly and the second probe removes the structure the same, the first probe removes the subassembly and includes clamp, the mounting panel, the guiding axle, clamp plate and probe, mounting panel and riser each other parallel arrangement, two guiding axles of fixed mounting between every mounting panel and the riser, and two guiding axles parallel arrangement each other are equipped with two through-holes on the clamp plate, install a linear bearing in every through-hole, every linear bearing is located a guiding axle periphery, the clamp plate can follow guiding axle axial displacement, clamp articulates one side at the mounting panel, probe one end fixed mounting is in one side of clamp plate, the positive pole post or the negative pole post of other end butt electricity core.

Further, a support column is fixedly installed on the pressing plate of the first probe moving assembly.

Further, the shutoff post fixed mounting is on the clamp plate of second probe moving assembly, and shutoff post one end butt sealing rubber plug, the other end communicates to stock solution seal pot mechanism in.

Further, the liquid storage seal pot mechanism comprises a first air pipe, a second air pipe, a pneumatic switch, a third air pipe, a support, a seal ring, a seal cover, a seal pot and a fourth air pipe, wherein a round groove is formed in the periphery of a pot opening of the seal pot, the seal ring is placed in the round groove, the seal cover is fixedly mounted on the pot opening of the seal pot, the support is fixedly connected to the periphery of the seal cover, the first air pipe is mounted on the seal cover, a seal column is communicated into the seal pot through the first air pipe, one end of the second air pipe is fixedly connected with the pneumatic switch, the other end of the second air pipe is fixedly connected with the seal cover and is communicated with the seal pot, one end of the third air pipe is fixedly mounted on the support, the other end of the third air pipe is fixedly connected to the seal cover, and the seal pot is communicated to the bottom of a cavity of the seal pot through the fourth air pipe.

Further, the fixed connection weighing mechanism comprises an empty cup and a functional electronic scale, and the empty cup is placed on the functional electronic scale.

Compared with the prior art, the gas production testing device for the battery cell pre-charging has the following advantages:

compared with the prior art, the gas production testing device for the battery cell pre-charging has the following advantages: the sealing and pressing mechanism can firmly place the battery cell on the battery cell fixing assembly for pre-filling gas production measurement, after the probe is connected with the anode and the cathode of the battery cell, the sealing rubber plug and the plugging column are pressed together, the left and right limiting distance of the supporting column on the mechanism can be adjusted, the battery cell is prevented from being inclined when the sealing rubber plug and the plugging column are pressed towards the battery cell, the sealing performance of the sealing rubber plug is affected, and a good sealing and pressing effect is achieved; the liquid storage sealing tank mechanism can press the gas circuit, and the inside of the battery cell shell and the pipeline are inflated and pressurized until water is discharged from the sealing tank; the functional electronic scale is configured in the weighing mechanism to weigh, so that the gas production rate during cell pre-charging is continuously monitored, the appearance quality of the cell is improved, the expansion problem of the cell is solved, and the overall dimension of the cell is ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a gas production testing device during cell pre-charging according to an embodiment of the present utility model;

FIG. 2 is a schematic front view of a gas production testing device during cell pre-charging according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional elevation view of a fluid reservoir seal pot mechanism according to an embodiment of the utility model;

fig. 4 is a schematic top view of a gas production testing device during cell pre-charging according to an embodiment of the utility model.

Reference numerals illustrate:

1-a sealing and compacting mechanism; 11-a cell fixing assembly; 111-a support plate; 112-a riser; 113-a guide positioning block; 114-sealing the rubber plug; 115-cell; 12-a first probe movement assembly; 121-clamp; 122-mounting plate; 123-guiding shaft; 124-a platen; 125-probe; 13-a second probe movement assembly; 14-supporting columns; 15-plugging the column; 2-a liquid storage seal pot mechanism; 201-a first trachea; 202-a second trachea; 203-pneumatic switch; 204-a third trachea; 205-a stent; 206-sealing ring; 207-sealing cover; 208-sealing the tank; 209-fourth trachea; 3-a weighing mechanism; 301-empty cup; 302-functional electronic scale.

Detailed Description

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

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1-4, the gas production testing device during cell pre-charging comprises a sealing pressing mechanism 1, a liquid storage sealing tank mechanism 2 and a weighing mechanism 3, wherein one end of the sealing pressing mechanism 1 is fixedly connected with the liquid storage sealing tank mechanism 2, and one end of the liquid storage sealing tank mechanism 2 is fixedly connected with the weighing mechanism 3; the sealing and compacting mechanism 1 comprises a battery core fixing assembly 11, a first probe moving assembly 12, a second probe moving assembly 13, a supporting column 14 and a plugging column 15, wherein the first probe moving assembly 12 and the second probe moving assembly 13 are respectively and fixedly installed on two sides of the battery core fixing assembly 11, the supporting column 14 is fixedly installed on the first probe moving assembly 12, the plugging column 15 is fixedly installed on the second probe moving assembly 13, and the battery core 115 can be pre-charged.

The battery core fixing assembly 11 comprises a supporting plate 111, a vertical plate 112, a guide positioning block 113, a sealing rubber plug 114 and a battery core 115, wherein the vertical plate 112 is fixedly installed on two sides of the supporting plate 111 respectively, the guide positioning block 113 is fixedly installed on the upper side of the supporting plate 111 and used for fixing the battery core 115, the battery core 115 is detachably installed on the guide positioning block 113, one side of the battery core 115 is provided with a positive pole, the other side of the battery core 115 is provided with a negative pole, one side of the positive pole is provided with a liquid injection hole, and the sealing rubber plug 114 is fixedly installed in the liquid injection hole so as to increase the sealing performance of the pre-charging device.

The first probe moving assembly 12 and the second probe moving assembly 13 have the same structure, the first probe moving assembly 12 comprises a clamp 121, a mounting plate 122, guide shafts 123, a pressing plate 124 and probes 125, the mounting plate 122 and the vertical plate 112 are arranged in parallel, two guide shafts 123 are fixedly arranged between each mounting plate 122 and the vertical plate 112, the two guide shafts 123 are arranged in parallel, two through holes are formed in the pressing plate 124, a linear bearing is arranged in each through hole, each linear bearing is located on the periphery of one guide shaft 123, the pressing plate 124 can axially move along the guide shafts 123 to play a role of left-right guiding, the clamp 121 is hinged to one side of the mounting plate 122, one end of each probe 125 is fixedly arranged on one side of the pressing plate 124, the other end of each probe 125 is abutted to the positive pole or the negative pole of the cell 115, the clamp 121 is pushed, the probes 125 are pressed against the poles of the cell 115, and otherwise, the probes 125 are withdrawn.

The clamp plate 124 of the first probe moving assembly 12 is fixedly provided with the support column 14, the support column 14 is fixedly arranged on the clamp plate 124 through the clamp ring, the clamp ring structure is convenient for adjusting the left and right limiting distance of the support column 14, the support column 14 prevents the battery cell 115 from being inclined when the sealing rubber plug 114 and the plugging rod 112 are pressed towards the battery cell 115, the sealing performance of the sealing rubber plug 114 is affected, and a good sealing and compacting effect is achieved.

The shutoff post 15 fixed mounting is on the clamp plate 124 of second probe moving assembly 13, and shutoff post 15 one end butt sealing rubber plug 114, and the other end communicates to in the reservoir seal pot mechanism 2, and shutoff post 15 passes through snap ring fixed mounting on another clamp plate 124, and the snap ring structure is convenient for adjust sealing rubber plug 114's compression volume.

The liquid storage sealing tank mechanism 2 comprises a first air pipe 201, a second air pipe 202, a pneumatic switch 203, a third air pipe 204, a support 205, a sealing ring 206, a sealing cover 207, a sealing tank 208 and a fourth air pipe 209, wherein a circular groove is formed in the periphery of a tank opening of the sealing tank 208, the sealing ring 206 is placed in the circular groove, the sealing cover 207 is fixedly mounted on the tank opening of the sealing tank 208, the sealing performance of the liquid storage sealing tank mechanism 2 is improved by the sealing ring 206, the support 205 is fixedly connected to the periphery of the sealing cover 207, the first air pipe 201 is mounted to the sealing cover 207, the sealing column 15 is communicated into the sealing tank 208 through the first air pipe 201, one end of the second air pipe 202 is fixedly connected with the pneumatic switch 203, the other end of the second air pipe is fixedly connected with the sealing cover 207 and is communicated with the sealing tank 208, one end of the third air pipe 204 is fixedly mounted on the support 205, the other end of the third air pipe is fixedly connected to the sealing cover 207, and is communicated to the bottom of a cavity of the sealing tank 208 through the fourth air pipe 209.

The fixed connection weighing mechanism 3 comprises an empty cup 301 and a functional electronic scale 302, wherein the empty cup is placed on the functional electronic scale 302, and the functional electronic scale 302 has a function of recording weight in real time.

Working engineering of gas production testing device during cell pre-charging:

as shown, the sealing cover 207 is opened, the sealing can 208 is filled with water, the sealing cover 207 is installed, the battery cell 115 is manually placed on the battery cell fixing assembly 11 in the next step, the pneumatic switch 203 is opened, positive pressure air is filled into the pipeline until the third air pipe 204 discharges water, the pneumatic switch 203 is closed at the moment, the clamp 121 is then stirred, positive and negative poles of the battery cell 115 are electrified, the liquid injection hole of the battery cell 115 is sealed, gas produced during the pre-charging of the battery cell 115 enters the liquid level of the sealing can 208 through the first air pipe 201, internal liquid is extruded to enter the empty cup 301 from the third air pipe 204, the functional electronic scale 302 continuously records weight, the weight is converted into volume, and the gas yield and time data during the pre-charging of the battery cell 115 are obtained.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a gas production testing arrangement when electric core is precharged which characterized in that: the device comprises a sealing pressing mechanism (1), a liquid storage sealing tank mechanism (2) and a weighing mechanism (3), wherein one end of the sealing pressing mechanism (1) is fixedly connected with the liquid storage sealing tank mechanism (2), and one end of the liquid storage sealing tank mechanism (2) is fixedly connected with the weighing mechanism (3); the sealing and compacting mechanism (1) comprises a battery core fixing assembly (11), a first probe moving assembly (12), a second probe moving assembly (13), a supporting column (14) and a blocking column (15), wherein the first probe moving assembly (12) and the second probe moving assembly (13) are fixedly installed on two sides of the battery core fixing assembly (11), the supporting column (14) is fixedly installed on the first probe moving assembly (12), and the blocking column (15) is fixedly installed on the second probe moving assembly (13).

2. The device for testing gas production during cell pre-charging according to claim 1, wherein: the battery cell fixing assembly (11) comprises a supporting plate (111), a vertical plate (112), a guide positioning block (113), a sealing rubber plug (114) and a battery cell (115), wherein the vertical plate (112) is fixedly installed on two sides of the supporting plate (111), the guide positioning block (113) is fixedly installed on the upper side of the supporting plate (111), the battery cell (115) is detachably installed on the guide positioning block (113), a positive pole is arranged on one side of the battery cell (115), a negative pole is arranged on the other side of the battery cell, a liquid injection hole is formed in one side of the positive pole, and the sealing rubber plug (114) is fixedly installed in the liquid injection hole.

3. The device for testing gas production during cell pre-charging according to claim 2, wherein: the structure of first probe remove subassembly (12) and second probe remove subassembly (13) is the same, first probe remove subassembly (12) including clamp (121), mounting panel (122), guiding axle (123), clamp plate (124) and probe (125), mounting panel (122) and riser (112) are parallel to each other set up, two guiding axles (123) of fixed mounting between every mounting panel (122) and riser (112), and two guiding axles (123) are parallel to each other set up, be equipped with two through-holes on clamp plate (124), install a linear bearing in every through-hole, every linear bearing is located a guiding axle (123) periphery, clamp plate (124) can follow guiding axle (123) axial displacement, clamp (121) hinge in one side of mounting panel (122), probe (125) one end fixed mounting is in one side of clamp plate (124), the positive pole or the negative pole post of other end butt electric core (115).

4. A cell pre-charge gas production testing device according to claim 3, wherein: a support column (14) is fixedly mounted on a platen (124) of the first probe moving assembly (12).

5. The device for testing gas production during cell pre-charging according to claim 1, wherein: the sealing column (15) is fixedly arranged on a pressing plate (124) of the second probe moving assembly (13), one end of the sealing column (15) is abutted against the sealing rubber plug (114), and the other end of the sealing column is communicated into the liquid storage sealing tank mechanism (2).

6. The device for testing gas production during cell pre-charging according to claim 1, wherein: the liquid storage sealing tank mechanism (2) comprises a first air pipe (201), a second air pipe (202), a pneumatic switch (203), a third air pipe (204), a support (205), a sealing ring (206), a sealing cover (207), a sealing tank (208) and a fourth air pipe (209), wherein a circular groove is formed in the periphery of a tank opening of the sealing tank (208), the sealing ring (206) is placed in the circular groove, the sealing cover (207) is fixedly mounted on the tank opening of the sealing tank (208), the support (205) is fixedly connected with the periphery of the sealing cover (207), the first air pipe (201) is mounted on the sealing cover (207), a sealing column (15) is communicated to the sealing tank (208) through the first air pipe (201), one end of the second air pipe (202) is fixedly connected with the pneumatic switch (203), the other end of the second air pipe is fixedly connected with the sealing cover (207) and is communicated with the sealing tank (208), one end of the third air pipe (204) is fixedly mounted on the support (205), and the other end of the third air pipe is fixedly connected to the sealing cover (207) and is communicated to the bottom of a cavity of the sealing tank (208) through the fourth air pipe (209).

7. The device for testing gas production during cell pre-charging according to claim 1, wherein: the fixed connection weighing mechanism (3) comprises an empty cup (301) and a functional electronic scale (302), and the empty cup is placed on the functional electronic scale (302).