CN105352677A - Sealing testing apparatus of power battery pack - Google Patents
Sealing testing apparatus of power battery pack Download PDFInfo
- Publication number
- CN105352677A CN105352677A CN201510796255.8A CN201510796255A CN105352677A CN 105352677 A CN105352677 A CN 105352677A CN 201510796255 A CN201510796255 A CN 201510796255A CN 105352677 A CN105352677 A CN 105352677A
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- China
- Prior art keywords
- electrokinetic cell
- cell bag
- holder
- measuring device
- plugging device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a sealing testing apparatus of a power battery pack. The testing apparatus comprises a gas source, an air tightness detection device, first plugging devices and second sealing devices. The gas source, the air tightness detection device, and a power battery pack are successively connected. Compressed air generated by the gas source enters the air tightness detection device through an air pipe and then enters the power battery pack through the first plugging devices. Preset time of the sealing testing apparatus is set and the air tightness detection device is started; and the air tightness detection device works within the preset time to obtain a pressure drop value or leakage rate of the power battery pack within the preset time. And then the obtained pressure drop value or leakage rate is compared with a preset standard value; when the obtained pressure drop value or leakage rate is lower than or equal to the set standard value, the sealing performance of the power battery pack meets the requirement; and if the obtained pressure drop value or leakage rate is higher than the set standard value, the sealing performance of the power battery pack does not meet the requirement.
Description
Technical field
The present invention relates to automobile technical field, particularly a kind of electrokinetic cell bag tightness measuring device.
Background technology
For alleviating the pollution pressure of city automobile tail gas, the electric automobile new lover becoming city gradually.Electric automobile refers to vehicle power to be power, drives the vehicles of wheels travel with motor.For ensureing the driveability of electric automobile, electric automobile can be very high to the requirement of battery, such as ensureing serviceable life and the security performance of electric automobile, need the sealing improving electrokinetic cell bag, the requirement of sealing demand fulfillment IP57 or even IP67 of electrokinetic cell bag.
The sealing propertytest means of prior art medium power power brick have 2 kinds: one to be test according to corresponding method of testings such as IP57 or IP67 in GB4208-2008; Two is split by electrokinetic cell bag, tests separately according to Standard the parts that wherein can affect electrokinetic cell bag sealing, but above-mentioned two kinds of methods all exist the problem of complicated operation, causes the performing leak test efficiency of electrokinetic cell bag low.
Therefore, how to reduce the complexity of electrokinetic cell bag performing leak test operation, improve the efficiency of electrokinetic cell bag performing leak test, become the technical matters that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of electrokinetic cell bag tightness measuring device, to reduce the complexity of electrokinetic cell bag performing leak test operation, improve the efficiency of electrokinetic cell bag performing leak test.
For achieving the above object, the invention provides following technical scheme:
A kind of electrokinetic cell bag tightness measuring device, comprising:
Source of the gas, described source of the gas can provide the pressurized air of steady pressure;
The air tightness detection equipment that can detect the sealing of described electrokinetic cell bag be connected by the first tracheae with described source of the gas, the voltage drop value in described air tightness detection equipment acquisition Preset Time or slip;
First plugging device, described first plugging device is communicated with by the second tracheae with described air tightness detection equipment, and described first plugging device is connected with the first plug connector of described electrokinetic cell bag, and described second tracheae is communicated with described first plug connector;
Wrap the second plugging device of other plug connectors except described first plug connector for electrokinetic cell described in shutoff, the number of described second plugging device is equal with the number of other plug connectors except described first plug connector.
Preferably, in above-mentioned electrokinetic cell bag tightness measuring device, described first plugging device comprises the holder that can be connected with described first plug connector and the sliding seat that can coordinate with described holder, described fixed seating is located at the outer wall of described first plug connector, described holder and described first plug connector interference fit, described sliding seat is connected by hasp with described holder, and described sliding seat is communicated with described second tracheae.
Preferably, in above-mentioned electrokinetic cell bag tightness measuring device, the one side that described holder coordinates with described sliding seat is provided with O-ring seal.
Preferably, in above-mentioned electrokinetic cell bag tightness measuring device, described holder is aluminium alloy holder, and described sliding seat is aluminium alloy sliding seat, and electroplating processes is all passed through in the surface of described holder and described sliding seat.
Preferably, in above-mentioned electrokinetic cell bag tightness measuring device, described source of the gas is compressor.
Preferably, in above-mentioned electrokinetic cell bag tightness measuring device, the tracheae that described source of the gas is communicated with described air tightness detection equipment is provided with valve.
Preferably, in above-mentioned electrokinetic cell bag tightness measuring device, described second plugging device is plug.
Preferably, in above-mentioned electrokinetic cell bag tightness measuring device, described plug is rubber plug.
Preferably, in above-mentioned electrokinetic cell bag tightness measuring device, described first plug connector that described first plugging device and described electrokinetic cell are wrapped is connected or is connected with two described first plug connectors that described first plugging device and described electrokinetic cell are wrapped.
As can be seen from technique scheme, electrokinetic cell bag tightness measuring device provided by the invention comprises source of the gas, air tightness detection equipment, first plugging device and the second plugging device, source of the gas is connected with air tightness detection equipment, air tightness detection equipment is connected with the first plug connector of electrokinetic cell bag by the first plugging device, sealing between air tightness detection equipment and electrokinetic cell is realized by the first plugging device, second plugging device can carry out shutoff to other plug connectors that electrokinetic cell is wrapped except the first plug connector, on electrokinetic cell, the sealing at other positions is realized by the second plug connector, with the requirement making electrokinetic cell bag meet sealing.In the process of electrokinetic cell bag performing leak test, by source of the gas, air tightness detection equipment is connected successively with electrokinetic cell bag, the pressurized air that source of the gas produces enters air tightness detection equipment by tracheae, then electrokinetic cell bag is entered by the first plugging device, the Preset Time of setting air tightness detection equipment, start air tightness detection equipment, air tightness detection equipment obtains voltage drop value or the slip of Preset Time internally-powered power brick, finally the standard value of the voltage drop value of acquisition or slip and setting is contrasted, when obtain voltage drop value or slip lower than or equal set standard value time, the sealing of electrokinetic cell bag meets the requirements, when the voltage drop value obtained or slip are higher than the standard value set, the sealing of electrokinetic cell bag is undesirable.The device that this programme provides only needs electrokinetic cell bag tightness measuring device to be connected with electrokinetic cell bag, start air tightness detection equipment, obtain data by air tightness detection equipment and carry out contrasting the sealing that can detect electrokinetic cell bag and whether meet the requirements, the complexity of electrokinetic cell bag performing leak test operation can be reduced relative to test mode of the prior art, improve the efficiency of electrokinetic cell bag performing leak test.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the electrokinetic cell bag tightness measuring device that Fig. 1 provides for the embodiment of the present invention;
The structural representation in the first plugging device front that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the first plugging device reverse side that Fig. 3 provides for the embodiment of the present invention.
1, source of the gas, 2, electrokinetic cell bag, 3, air tightness detection equipment, the 4, first plugging device, 41, holder, 42, sliding seat, the 5, second plugging device.
Embodiment
The invention discloses a kind of electrokinetic cell bag tightness measuring device, to reduce the complexity of electrokinetic cell bag performing leak test operation, improve the efficiency of electrokinetic cell bag performing leak test.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 3, the structural representation of the electrokinetic cell bag tightness measuring device that Fig. 1 provides for the embodiment of the present invention; The structural representation in the first plugging device front that Fig. 2 provides for the embodiment of the present invention; The structural representation of the first plugging device reverse side that Fig. 3 provides for the embodiment of the present invention.
The invention discloses a kind of electrokinetic cell bag tightness measuring device, comprise source of the gas 1, electrokinetic cell checkout equipment 3, first plugging device 4 and the second plugging device 5.Wherein,
Source of the gas 1 continually can provide the pressurized air of steady pressure for air tightness detection equipment 3;
The air tightness detection equipment 3 that can detect the sealing of electrokinetic cell bag 2 be connected by the first tracheae with source of the gas 1, air tightness detection equipment 3 can obtain voltage drop value in Preset Time or slip, when voltage drop value or slip lower than or when equaling the standard value set, the sealing of electrokinetic cell bag meets the requirements, when voltage drop value or slip are higher than the standard value set, the sealing of electrokinetic cell bag is undesirable;
First plugging device 4, first plugging device 4 is communicated with by the second tracheae with air tightness detection equipment 3, first plugging device 4 is connected with the first plug connector of electrokinetic cell bag 2, second tracheae is communicated with the first plug connector, the gas that first plugging device 4 can realize between air tightness detection equipment 3 and electrokinetic cell bag 2 circulates, namely ensure that the gas provided by source of the gas 1 can be entered in electrokinetic cell bag 2 after air tightness detection equipment 3, the first plugging device 4 can also prevent the Leakage Gas in electrokinetic cell bag 2;
For the second plugging device 5 of other plug connectors on shutoff electrokinetic cell bag 2 except the first plug connector, the number of the second plugging device 5 is equal with the number of other plug connectors except the first plug connector, second plugging device 5 can realize the sealing requirements to electrokinetic cell bag, avoid the gas in electrokinetic cell bag 2 to be leaked by other plug connectors except the first plug connector, affect the Detection results of air tightness detection equipment 3.
The checking process of the electrokinetic cell bag tightness measuring device that this programme provides is as follows:
Open source of the gas 1, the pressurized air of steady pressure enters electrokinetic cell bag by the first tracheae, air tightness detection equipment 3 and the second tracheae successively; The test duration of setting air tightness detection equipment 3, start air tightness detection equipment, after the time that air tightness detection equipment work is preset, obtain voltage drop value or the slip of electrokinetic cell bag 2, and then the result obtained is analyzed.
The process analyzed is as follows:
When voltage drop value or slip lower than or when equaling the standard value set, the sealing of electrokinetic cell bag meets the requirements, when voltage drop value or slip are higher than the described standard value set, the sealing of electrokinetic cell bag is undesirable, carries out maintenance process according to analyzing the result obtained to undesirable electrokinetic cell bag 2.
It can be seen from the above, the electrokinetic cell bag tightness measuring device that this programme provides only needs electrokinetic cell bag to be detected to be connected with electrokinetic cell bag tightness measuring device in testing process, start electrokinetic cell bag tightness measuring device, matching measurement result is just passable, the seal not needing electrokinetic cell to wrap carries out dismounting and carries out sealing detection separately, thus reduce electrokinetic cell bag performing leak test complicated operation degree, improve the efficiency of electrokinetic cell bag performing leak test.
Find out from foregoing, the electrokinetic cell bag tightness measuring device that this programme provides can reduce the hand labor intensity that staff detects electrokinetic cell bag sealing to a certain extent, and directly detected by air tightness detection equipment, improve the automaticity of electrokinetic cell bag sealing propertytest, and the speed of electrokinetic cell bag sealing propertytest can be improved relative to test mode before, improve the detection efficiency of electrokinetic cell bag, improve the production capacity of electrokinetic cell to a certain extent.
In this programme, first plugging device 4 comprises the holder 41 that can be connected with the first plug connector and the sliding seat 42 that can coordinate with holder 41, holder 41 is set in the outer wall of the first plug connector, holder 41 and the first plug connector interference fit, what ensure the first plugging device 4 and the first plug connector coordinates intensity, sliding seat 42 is connected by hasp with holder 41, and sliding seat 42 is communicated with the second tracheae, makes to enter electrokinetic cell bag by the first plug connector by the gas of the second tracheae.First holder 41 is fixed on the first plug connector in the process of installing, then by hasp, sliding seat 42 is connected with holder 41, connect can combine with holder 41 and dismantle by portable propelling seat 42 by hasp, and can ensure sliding seat 42 and holder 41 coordinate intensity, the connection between holder 41 and sliding seat 42 can not only be connected and can also be bolted or be connected by buckle by hasp.
In order to avoid the counterface of holder 41 and sliding seat 42 leaks, preferably, holder 41 and the mating surface of sliding seat 42 are provided with O-ring seal, and on O-ring seal, corresponding needs arranges the hole coordinated with the first plug connector, and O-ring seal preferentially adopts rubber seal.
In order to ensure the working strength of the first plugging device 4, holder 41 is aluminium alloy holder, and sliding seat 42 is aluminium alloy sliding seat, and the surface of holder 41 and sliding seat 42 is all by electroplating processes, slows down the generation of phenomenon of in use getting rusty.The production material of holder 41 and sliding seat 42 is not limited to use aluminium alloy, can also use the plastics that stainless steel, iron or intensity are higher.In use need to provide two cover first plugging devices 4, a set of use, a set of for subsequent use.
Preferably, the source of the gas 1 adopted in this programme is compressor, needs regularly to check source of the gas 1, carry out oil removing water removal operation to source of the gas 1 in the process used, to ensure that it normally runs, carry oil in the pressurized air simultaneously preventing it from producing or water causes damage to air tightness detection equipment 3.
The tracheae that source of the gas 1 is communicated with air tightness detection equipment 3 is provided with valve, can opens and closes at any time.In the course of work of electrokinetic cell bag tightness measuring device, need guarantee first tracheae and the second tracheae not to bend also do not block, ensure that pressurized air can enter electrokinetic cell bag by air tightness detection equipment smoothly, reduce the disturbing factor in test process, improve the reliability of test result.The electrokinetic cell bag tightness measuring device that this programme provides needs regularly to detect the sealing of the first tracheae, the second tracheae and valve, avoids due to above-mentioned part leakage contribution measurement result.
The second plugging device 5 that this programme provides is plug, plug can carry out for the plug connector wrapped by electrokinetic cell reequiping obtain or according to the structure of plug connector, shape and the conscientious independent design of size, the plug connector can wrapped with electrokinetic cell closely cooperates, and has and reuse and grafting feature easily.
Preferably, the plug used in this programme is rubber plug, and rubber plug along with the shape generation deformation of plug connector, can ensure sealing effectiveness, can also improve its versatility.
Second plugging device also can adopt metal plug, preferably, needs to arrange rubber blanket on metal plug.Second plugging device in use needs to arrange two covers, and a set of use is a set of for subsequent use.
First plugging device 4 is connected with first plug connector of on electrokinetic cell bag 2 or is connected with first plug connector of two on electrokinetic cell bag 2 with the first plugging device 4, and the first plugging device 4 is selected to arrange first plugging device 4 or two the first plugging devices 4 according to the shape of electrokinetic cell bag and internal gas flow situation.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. an electrokinetic cell bag tightness measuring device, is characterized in that, comprising:
Source of the gas (1), described source of the gas (1) can provide the pressurized air of steady pressure;
The air tightness detection equipment (3) that can detect the sealing of described electrokinetic cell bag (2) be connected by the first tracheae with described source of the gas, the voltage drop value in described air tightness detection equipment (3) acquisition Preset Time or slip;
First plugging device (4), described first plugging device (4) is communicated with by the second tracheae with described air tightness detection equipment (3), described first plugging device (4) is connected with the first plug connector of described electrokinetic cell bag (2), and described second tracheae is communicated with described first plug connector;
For second plugging device (5) of other plug connectors on electrokinetic cell bag (2) described in shutoff except described first plug connector, the number of described second plugging device (5) is equal with the number of other plug connectors except described first plug connector.
2. electrokinetic cell bag tightness measuring device according to claim 1, it is characterized in that, described first plugging device (4) comprises the holder (41) that can be connected with described first plug connector and the sliding seat (42) that can coordinate with described holder (41), described holder (41) is set in the outer wall of described first plug connector, described holder (41) and described first plug connector interference fit, described sliding seat (42) is connected by hasp with described holder (41), described sliding seat (42) is communicated with described second tracheae.
3. electrokinetic cell bag tightness measuring device according to claim 2, is characterized in that, the one side that described holder (41) coordinates with described sliding seat (42) is provided with O-ring seal.
4. electrokinetic cell bag tightness measuring device according to claim 2, it is characterized in that, described holder (41) is aluminium alloy holder, described sliding seat (42) is aluminium alloy sliding seat, and described holder (41) all passes through electroplating processes with the surface of described sliding seat (42).
5. electrokinetic cell bag tightness measuring device according to claim 1, is characterized in that, described source of the gas (1) is compressor.
6. electrokinetic cell bag tightness measuring device according to claim 1, is characterized in that, the tracheae that described source of the gas (1) is communicated with described air tightness detection equipment (3) is provided with valve.
7. electrokinetic cell bag tightness measuring device according to claim 1, is characterized in that, described second plugging device (5) is plug.
8. electrokinetic cell bag tightness measuring device according to claim 7, is characterized in that, described plug is rubber plug.
9. electrokinetic cell bag tightness measuring device according to claim 1, it is characterized in that, described first plugging device (4) is connected with described first plug connector on described electrokinetic cell bag (2) or is connected with two described first plug connectors on described electrokinetic cell bag (2) with described first plugging device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510796255.8A CN105352677A (en) | 2015-11-18 | 2015-11-18 | Sealing testing apparatus of power battery pack |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510796255.8A CN105352677A (en) | 2015-11-18 | 2015-11-18 | Sealing testing apparatus of power battery pack |
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| CN105352677A true CN105352677A (en) | 2016-02-24 |
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| CN201510796255.8A Pending CN105352677A (en) | 2015-11-18 | 2015-11-18 | Sealing testing apparatus of power battery pack |
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Cited By (9)
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| CN106017805A (en) * | 2016-06-16 | 2016-10-12 | 重庆长安汽车股份有限公司 | Plugging tool for air tightness detection of battery pack |
| CN107402107A (en) * | 2016-05-20 | 2017-11-28 | 比亚迪股份有限公司 | For the device for detecting sealability of battery bag, method and battery bag |
| CN107894304A (en) * | 2017-09-29 | 2018-04-10 | 芜湖普威技研有限公司 | New energy battery bag air-tightness detection tool |
| JP2018084427A (en) * | 2016-11-21 | 2018-05-31 | トヨタ自動車株式会社 | Battery pack inspection method |
| CN108254137A (en) * | 2017-12-29 | 2018-07-06 | 福建渃博特自动化设备有限公司 | Battery case welding airtightness detection device and its detection method |
| CN108663169A (en) * | 2017-03-28 | 2018-10-16 | 长城汽车股份有限公司 | Airtight detecting apparatus and method |
| CN109521365A (en) * | 2018-12-04 | 2019-03-26 | 远东福斯特新能源江苏有限公司 | Power battery box body protective capacities detection device and its detection method |
| CN112345174A (en) * | 2020-10-30 | 2021-02-09 | 歌尔微电子有限公司 | Air tightness detection device and method |
| CN114112229A (en) * | 2020-08-31 | 2022-03-01 | 中国航发商用航空发动机有限责任公司 | Tightness detection device of gas turbine engine casing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107402107B (en) * | 2016-05-20 | 2020-12-25 | 比亚迪股份有限公司 | Device and method for detecting sealing performance of battery pack and battery pack |
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| CN108254137A (en) * | 2017-12-29 | 2018-07-06 | 福建渃博特自动化设备有限公司 | Battery case welding airtightness detection device and its detection method |
| CN109521365A (en) * | 2018-12-04 | 2019-03-26 | 远东福斯特新能源江苏有限公司 | Power battery box body protective capacities detection device and its detection method |
| CN114112229A (en) * | 2020-08-31 | 2022-03-01 | 中国航发商用航空发动机有限责任公司 | Tightness detection device of gas turbine engine casing |
| CN112345174A (en) * | 2020-10-30 | 2021-02-09 | 歌尔微电子有限公司 | Air tightness detection device and method |
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Application publication date: 20160224 Assignee: Chongqing Changan New Energy Automotive Technology Co., Ltd. Assignor: Chongqing Changan Automobile Co., Ltd.|Chongqing Chang'an New Energy Automobile Co., Ltd. Contract record no.: 2018500000022 Denomination of invention: Sealing testing apparatus of power battery pack License type: Exclusive License Record date: 20181130 |
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Effective date of registration: 20190109 Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Applicant after: Chongqing Changan New Energy Automotive Technology Co., Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Applicant before: Chongqing Changan Automobile Co., Ltd. Applicant before: Chongqing Chang'an New Energy Automobile Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160224 |