CN110763407A - Tightness detection device for battery upper shell - Google Patents
Tightness detection device for battery upper shell Download PDFInfo
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- CN110763407A CN110763407A CN201910967315.6A CN201910967315A CN110763407A CN 110763407 A CN110763407 A CN 110763407A CN 201910967315 A CN201910967315 A CN 201910967315A CN 110763407 A CN110763407 A CN 110763407A
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- pressing
- block
- sealing
- shell
- lower shell
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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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Abstract
The invention discloses a device for detecting the sealing property of an upper shell of a battery, which comprises a lower shell (1), a pressing assembly (2) and a leak detector, wherein the lower shell (1) is in sealing fit with a piece to be detected (3), and the lower shell (1) is provided with an air suction hole or an air delivery hole; the piece to be tested (3) is provided with an assembly hole, the pressing component (2) comprises a pressing clamp, and the pressing clamp is in sealing and pressing fit with the assembly hole; the leak detector is positioned in the lower shell (1). The tightness detection device of the upper shell of the battery quantifies and detects various performance indexes; automatic control is realized, and the detection efficiency is improved.
Description
Technical Field
The invention relates to a device for detecting the sealing performance of an upper shell of a battery.
Background
At present, the power battery has the advantages of environmental protection, no pollution, long cycle life and the like, and is widely applied to the fields of communication, illumination, energy storage, electric vehicles, electric bicycles and the like. With the rapid development of the new energy automobile industry, the safety of the power battery box as one of the core components of the electric automobile is very important, and the safety performance of the whole electric automobile is affected. However, in the prior art, the upper shell and the lower shell need to be sealed and locked through the sealing locking screw, then the sealing performance of the upper shell and the lower shell is detected, and the sealing locking screw needs to be removed after the detection is finished, so that the detection efficiency is greatly influenced.
Therefore, there is a need for an improved device for detecting the sealability of an upper case of a battery in the prior art.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a device for detecting the sealing property of an upper shell of a battery, which quantifies each performance index of detection; automatic control is realized, and the detection efficiency is improved; the universality is realized, and similar products can detect the tightness through the equipment.
In order to realize the technical effects, the technical scheme of the invention is as follows: the device for detecting the sealing performance of the upper shell of the battery is characterized by comprising a lower shell (1), a pressing assembly (2) and a leak detector, wherein the lower shell (1) is in sealing fit with a piece to be detected (3), and the lower shell (1) is provided with an air suction hole or an air delivery hole; the piece to be tested (3) is provided with an assembling hole, the pressing component (2) comprises a pressing clamp, and the pressing clamp is in sealing and pressing fit with the assembling hole; the leak detector is positioned in the lower shell (1).
Through such design, casing (1) under the frock simulation, the sealed locking screw of pressing pincers simulation, the actual installation detection step of at utmost simulation, and airtight cooperation of casing and lower casing in the realization that can be quick.
The preferred technical scheme does, down casing (1) with be provided with sealing strip (13) between await measuring piece (3), down casing (1) in await measuring piece (3) and sealing strip (13) complex position offer with the recess of sealing strip (13) adaptation. Through such design, strengthen the leakproofness of power battery case, make things convenient for the location of going up casing (3) and lower casing (1) simultaneously.
The preferable technical scheme is that the piece to be measured (3) comprises a lower assembly hole (31); the pressing assembly (2) comprises a lower driving cylinder (211) and a lower pressing clamp (212), and the lower driving cylinder (211) is fixedly connected with the lower shell (1); the lower pressing clamp (212) is in driving connection with a gas rod of the lower driving cylinder (211), a first sealing ring is arranged on a pressing end face of the lower pressing clamp (212), the lower pressing clamp (212) is in sealing fit with the lower assembling hole (31), and the lower pressing clamp (212) is driven by the lower driving cylinder (211) to press the to-be-detected piece (3) and the lower shell (1) together. Through the design, the actual installation steps are simulated, all the lower assembly holes (31) are sealed through the lower pressing pliers (212), and the upper shell (3) and the lower shell (1) are pressed together.
The preferable technical scheme is that the pressing assembly (2) further comprises a lower connecting rod (213), a lower bent block (214), a lower fixing block (215) and a lower rotating shaft (216), and a plurality of lower pressing pliers (212) are fixedly connected with the lower rotating shaft (216); one end of the lower bent block (214) is fixedly connected with the lower rotating shaft (216), the other end of the lower bent block (214) is rotatably connected with one end of the lower connecting rod (213), and the other end of the lower connecting rod (213) is rotatably connected with the air rod of the lower driving air cylinder (211); the lower fixing block (215) is fixedly connected with the lower shell (1), and the lower fixing block (215) is rotatably connected with the lower rotating shaft (216). Through the design, the number of the lower driving cylinders (211) is reduced, the energy consumption is reduced, and the cost is reduced.
The preferable technical scheme is that the piece to be measured (3) further comprises an upper assembling hole (32); a guide rail (11) is arranged on the lower shell (1) or the base (5); the guide rail structure further comprises a cross beam frame (4), wherein the cross beam frame (4) is provided with a guide part matched with the guide rail (11); the pressing assembly (2) further comprises an upper pressing block (221) and an upper driving cylinder (222), the upper pressing block (221) is in driving connection with an air rod of the upper driving cylinder (222), a second sealing ring is arranged on a pressing end face of the upper pressing block (221), the upper pressing block (221) is in sealing fit with the upper assembling hole (32), and the upper pressing block (221) is driven by the upper driving cylinder (222) to press the piece to be detected (3) and the lower shell (1) together; the upper driving cylinder (222) is fixedly connected with the cross beam frame (4). Through the design, the cross beam frame (4) can move to two sides, so that the upper shell can be conveniently assembled and disassembled; and simulating an actual mounting step, sealing all the upper assembly holes (32) through an upper pressing block (221), and simultaneously pressing the upper shell (3) and the lower shell (1) together.
Preferably, the guide part is a slider (41). As an equivalent alternative, the guide may also be a roller.
The preferable technical scheme is that the piece to be measured (3) is provided with an upper protrusion (33), and the upper protrusion (33) comprises a side assembling hole (331); the pressing assembly (2) further comprises a side driving cylinder (231) and a side sealing block (232), and the side driving cylinder (231) is rotatably connected with the lower shell (1); the side sealing block (232) is in driving connection with an air rod of the side driving air cylinder (231), and the side sealing block (232) is in sealing fit with the side assembling hole (331). With this design, the actual mounting step is simulated, and all the side fitting holes (331) are sealed by the side seal block (232).
The pressing assembly (2) further comprises a side rotating shaft (233), a side connecting piece (234) and a side fixing block (235), and the side sealing block (232) is fixedly connected with the side rotating shaft (233); one end of the side connecting piece (234) is fixedly connected with the side rotating shaft (233), and the other end of the side connecting piece (234) is rotatably connected with an air rod of the side driving air cylinder (231); the side fixing block (235) is rotatably connected with the side rotating shaft (233), and the side fixing block (235) is fixedly connected with the lower shell (1).
The preferable technical scheme is that the lower pressing pliers (212) and the lower rotating shaft (216) can move and be locked according to the position of the actual lower assembly hole (31); the side sealing block (232) and the side rotating shaft (233) can be movably locked according to the position of the actual side assembling hole (331). By means of the design, universality is achieved, and similar products can detect sealing performance through the device.
The invention has the advantages and beneficial effects that: the device for detecting the sealing property of the upper shell of the battery is reasonable in structure, and one-key automatic control is realized by simulating a normal installation detection step; compared with the prior art, the sealing locking screw is prevented from being installed and detached, so that the detection efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of a device for detecting sealability of an upper case of a battery according to the present invention;
fig. 2 is a schematic structural view of the connection of an upper case and a lower case of an embodiment 1 of the sealability testing apparatus of an upper case for a battery according to the present invention;
fig. 3 is a side view of embodiment 1 of the tightness testing device of the upper case of the battery according to the present invention;
fig. 4 is a plan view of a lower case of an embodiment 1 of a device for detecting sealability of an upper case for a battery according to the present invention;
fig. 5 is a schematic structural view of a pressing member for sealing and pressing a lower mounting hole of an embodiment 1 of a device for detecting the sealing property of an upper battery case according to the present invention;
fig. 6 is a schematic structural view of a pressing member of a seal side fitting hole of embodiment 1 of a device for detecting sealability of a battery upper case according to the present invention.
In the figure: 1. a lower housing; 11. a guide rail; 12. an air exhaust hole; 13. a sealing strip; 2. a compression assembly; 211. a lower driving cylinder; 212. pressing down the pliers; 213. a lower connecting rod; 214. a lower yeast block; 215. a lower fixed block; 216. a lower rotating shaft; 221. pressing the blocks; 222. an upper driving cylinder; 231. a side drive cylinder; 232. a side seal block; 233. a side rotating shaft; 234. a side connecting sheet; 235. a side fixing block; 3. a piece to be tested; 31. a lower assembly hole; 32. an upper assembly hole; 33. an upper protrusion; 331. a side assembly aperture; 4. a cross beam frame; 41. a slider; 5. a base.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
As shown in fig. 1, the device for detecting the sealing property of the upper battery case in embodiment 1 includes a lower case 1, a pressing assembly 2, and a leak detector, wherein the lower case 1 is in sealing fit with a to-be-detected part 3, and the lower case 1 is provided with an air extraction hole 12; the piece to be tested 3 is provided with an assembly hole, the pressing component 2 comprises a pressing clamp, and the pressing clamp is in sealing and pressing fit with the assembly hole; the leak detector is located in the lower shell 1.
The leak detector is preferably a COSMO model LS1866 air pressure test instrument.
And a sealing strip 13 is arranged between the lower shell 1 and the piece to be detected 3.
The piece to be tested 3 comprises a lower assembly hole 31; the pressing assembly 2 comprises a lower driving cylinder 211 and a lower pressing clamp 212, and the lower driving cylinder 211 is fixedly connected with the lower shell 1; the lower pressing clamp 212 is in driving connection with an air rod of the lower driving air cylinder 211, a first sealing ring is arranged on a pressing end face of the lower pressing clamp 212, the lower pressing clamp 212 is in sealing fit with the lower assembling hole 31, and the lower pressing clamp 212 is driven by the lower driving air cylinder 211 to press the to-be-tested part 3 and the lower shell 1 together.
The pressing assembly 2 further comprises a lower connecting rod 213, a lower bent block 214, a lower fixing block 215 and a lower rotating shaft 216, and a plurality of lower pressing pliers 212 are fixedly connected with the lower rotating shaft 216; one end of the lower crank block 214 is fixedly connected with the lower rotating shaft 216, the other end of the lower crank block 214 is rotatably connected with one end of the lower connecting rod 213, and the other end of the lower connecting rod 213 is rotatably connected with the air rod of the lower driving cylinder 211; the lower fixing block 215 is fixedly connected with the lower shell 1, and the lower fixing block 215 is rotatably connected with the lower rotating shaft 216.
The piece to be tested 3 further comprises an upper assembling hole 32; a base 5 is fixedly arranged below the lower shell 1, a guide rail 11 is arranged on the upper end surface of the base 5, and the guide rail 11 is positioned on two sides of the lower shell 1; the sliding rail mechanism further comprises a cross beam frame 4, the cross beam frame 4 is provided with a sliding block 41 matched with the guide rail 11, and the cross beam frame 4 can slide to the obliquely upper part of the upper shell 3 along the guide rail 11; the pressing assembly 2 further comprises an upper pressing block 221 and an upper driving cylinder 222, the upper pressing block 221 is in driving connection with an air rod of the upper driving cylinder 222, a second sealing ring is arranged on a pressing end face of the upper pressing block 221, the upper pressing block 221 is in sealing fit with the upper assembling hole 32, and the upper pressing block 221 is driven by the upper driving cylinder 222 to press the piece to be tested 3 and the lower shell 1 together; the upper drive cylinder 222 is fixedly connected to the cross-beam frame 4.
The piece to be measured 3 is provided with an upper protrusion 33, and the upper protrusion 33 includes a side assembling hole 331; the pressing assembly 2 further comprises a side driving cylinder 231 and a side sealing block 232, and the side driving cylinder 231 is rotatably connected with the lower shell 1; the side sealing block 232 is connected with the air rod of the side driving air cylinder 231 in a driving mode, and the side sealing block 232 is matched with the side assembling hole 331 in a sealing mode.
The pressing assembly 2 further comprises a side rotating shaft 233, a side connecting piece 234 and a side fixing block 235, wherein the side sealing block 232 is fixedly connected with the side rotating shaft 233; one end of the side connecting piece 234 is fixedly connected with the side rotating shaft 233, and the other end of the side connecting piece 234 is rotatably connected with the air rod of the side driving air cylinder 231; the side fixing block 235 is rotatably connected to the side rotating shaft 233, and the side fixing block 235 is fixedly connected to the lower case 1.
The user moves the beam frame 4 to one side, the upper housing 3 is placed on the lower housing 1, the beam frame 4 is moved to a corresponding position through the positioning of the sealing strip 13 between the upper housing 3 and the lower housing 1, the position of the upper pressing block 221 is adjusted and locked, at the moment, the upper pressing block 221 is positioned right above the upper assembling hole 32, the lower pressing pliers 212 is adjusted to move to a position corresponding to the lower assembling hole 31 and locked, and the side sealing block 232 is adjusted to move to a position corresponding to the side assembling hole 331 and locked; when the switch is pressed down, the lower driving cylinder 211 drives the lower pressing clamp 212 to seal the lower assembling hole 31, the upper driving cylinder 222 drives the upper pressing block 221 to seal the upper assembling hole 32, the side driving cylinder 231 drives the side sealing block 232 to seal the side assembling hole 331, and meanwhile, the upper shell 3 and the lower shell 1 are pressed together by the lower pressing clamp 212 and the upper pressing block 221; then, the air pump pumps air through the air pumping hole 12, so that a negative pressure state is formed in the sealed cavity of the upper shell 3, after the air pump pumps air to reach an initial set air pressure, the pressure is maintained for a period of time, and the leak rate in a set time is tested to judge the tightness of the product; after the detection is finished, the upper shell can be taken down only by pressing down the switch, opening the lower pressing clamp 212, the upper pressing block 221 and the side sealing block 232 under the driving of the lower driving cylinder 211, the upper driving cylinder 222 and the side driving cylinder 231 respectively and moving the cross beam frame 4 to one side.
As an equivalent replacement, positive pressure inflation can be performed in the sealed cavity, after the air is inflated to the initial set air pressure, the pressure is maintained for a period of time, and the leak rate is detected to judge the sealing performance of the product in the specified time. The leak rate can be calculated by the change in pressure, or by the change in the concentration of the specific gas fed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The device for detecting the sealing performance of the upper shell of the battery is characterized by comprising a lower shell (1), a pressing assembly (2) and a leak detector, wherein the lower shell (1) is in sealing fit with a piece to be detected (3), and the lower shell (1) is provided with an air suction hole or an air delivery hole; the piece to be tested (3) is provided with an assembling hole, the pressing component (2) comprises a pressing clamp, and the pressing clamp is in sealing and pressing fit with the assembling hole; the leak detector is positioned in the lower shell (1).
2. The device for detecting the tightness of the upper shell of the battery according to claim 1, wherein a sealing strip (13) is arranged between the lower shell (1) and the piece to be detected (3), and a groove matched with the sealing strip (13) is formed in the position where the lower shell (1) and the piece to be detected (3) are matched with the sealing strip (13).
3. The upper battery case tightness detection device according to claim 1, wherein the member to be tested (3) includes a lower fitting hole (31); the pressing assembly (2) comprises a lower driving cylinder (211) and a lower pressing clamp (212), and the lower driving cylinder (211) is fixedly connected with the lower shell (1); the lower pressing clamp (212) is in driving connection with a gas rod of the lower driving cylinder (211), a first sealing ring is arranged on a pressing end face of the lower pressing clamp (212), the lower pressing clamp (212) is in sealing fit with the lower assembling hole (31), and the lower pressing clamp (212) is driven by the lower driving cylinder (211) to press the to-be-detected piece (3) and the lower shell (1) together.
4. The device for detecting the tightness of the upper shell of the battery as claimed in claim 3, wherein the pressing assembly (2) further comprises a lower connecting rod (213), a lower bent block (214), a lower fixing block (215) and a lower rotating shaft (216), and a plurality of lower pressing pincers (212) are fixedly connected with the lower rotating shaft (216); one end of the lower bent block (214) is fixedly connected with the lower rotating shaft (216), the other end of the lower bent block (214) is rotatably connected with one end of the lower connecting rod (213), and the other end of the lower connecting rod (213) is rotatably connected with the air rod of the lower driving air cylinder (211); the lower fixing block (215) is fixedly connected with the lower shell (1), and the lower fixing block (215) is rotatably connected with the lower rotating shaft (216).
5. The upper battery case tightness detection device according to claim 3, wherein the member to be tested (3) further comprises an upper fitting hole (32); a guide rail (11) is arranged on the lower shell (1) or the base (5) below the lower shell (1); the guide rail structure further comprises a cross beam frame (4), wherein the cross beam frame (4) is provided with a guide part matched with the guide rail (11); the pressing assembly (2) further comprises an upper pressing block (221) and an upper driving cylinder (222), the upper pressing block (221) is in driving connection with an air rod of the upper driving cylinder (222), a second sealing ring is arranged on a pressing end face of the upper pressing block (221), the upper pressing block (221) is in sealing fit with the upper assembling hole (32), and the upper pressing block (221) is driven by the upper driving cylinder (222) to press the piece to be detected (3) and the lower shell (1) together; the upper driving cylinder (222) is fixedly connected with the cross beam frame (4).
6. The device for detecting the sealability of a battery upper case according to claim 5, wherein the guide part is a slider (41).
7. The battery upper case sealability detection apparatus according to claim 5, wherein the member to be tested (3) is provided with an upper protrusion (33), and the upper protrusion (33) includes a side fitting hole (331); the pressing assembly (2) further comprises a side driving cylinder (231) and a side sealing block (232), and the side driving cylinder (231) is rotatably connected with the lower shell (1); the side sealing block (232) is in driving connection with an air rod of the side driving air cylinder (231), and the side sealing block (232) is in sealing fit with the side assembling hole (331).
8. The device for detecting the tightness of the upper battery shell according to claim 7, wherein the pressing assembly (2) further comprises a side rotating shaft (233), a side connecting piece (234) and a side fixing block (235), and the side sealing block (232) is fixedly connected with the side rotating shaft (233); one end of the side connecting piece (234) is fixedly connected with the side rotating shaft (233), and the other end of the side connecting piece (234) is rotatably connected with an air rod of the side driving air cylinder (231); the side fixing block (235) is rotatably connected with the side rotating shaft (233), and the side fixing block (235) is fixedly connected with the lower shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910967315.6A CN110763407A (en) | 2019-10-12 | 2019-10-12 | Tightness detection device for battery upper shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910967315.6A CN110763407A (en) | 2019-10-12 | 2019-10-12 | Tightness detection device for battery upper shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110763407A true CN110763407A (en) | 2020-02-07 |
Family
ID=69331653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910967315.6A Pending CN110763407A (en) | 2019-10-12 | 2019-10-12 | Tightness detection device for battery upper shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110763407A (en) |
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2019
- 2019-10-12 CN CN201910967315.6A patent/CN110763407A/en active Pending
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