CN207516285U - Diaphragm high-temperature behavior detection device - Google Patents
Diaphragm high-temperature behavior detection device Download PDFInfo
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- CN207516285U CN207516285U CN201721563075.6U CN201721563075U CN207516285U CN 207516285 U CN207516285 U CN 207516285U CN 201721563075 U CN201721563075 U CN 201721563075U CN 207516285 U CN207516285 U CN 207516285U
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- supporting table
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Abstract
The utility model is related to a kind of diaphragm high-temperature behavior detection devices.Diaphragm high-temperature behavior detection device, including supporting table and compressing member, the supporting table is equipped with supporting table hole, the compressing member is equipped with for compressing member hole corresponding with supporting table hole, it is equipped between the supporting table and compressing member for the pre-press by diaphragm pre-pressing to be measured in supporting table, the pre-press is equipped with pre-press hole corresponding with being used to support platform hole.It is equipped between supporting table and compressing member for the pre-press by diaphragm pre-pressing in supporting table, by pre-press by diaphragm pre-pressing to be measured in supporting table, rather than directly diaphragm to be measured is compressed by compressing member, compressing member diaphragm fold caused by during being fixed and clamped and unbalance stress phenomenon are can effectively avoid, increases the accuracy of diaphragm high-temperature behavior test.It solves the problems, such as in the prior art since diaphragm high-temperature behavior detection caused by detection device is inaccurate.
Description
Technical field
The utility model is related to a kind of diaphragm high-temperature behavior detection devices.
Background technology
Battery diaphragm is the important component of lithium ion battery, and the quality of membrane properties affects the capacity of battery, follows
Ring performance, charging and discharging currents density etc..In addition, the high-temperature behavior of diaphragm be influence battery security can principal element it
One, high-temperature stability qualification, which is shown, does not occur rupture of membranes phenomenon in limiting time in hot environment.
The detection device of high temperature diaphragm performance detection is presently used for, it is intermediate equipped with branch using manual sampling film is placed on
In the supporting table for supportting platform hole, the compressing member with constant weight in compressing member hole is then carried among press fitting one in supporting table,
Diaphragm part to be measured is between opposite supporting table hole and compressing member hole.When on upper strata, compressing member is pressed in major diameter section, every
Fold, unbalance stress phenomenon easily occur for film.Diaphragm too early rupture of membranes can occur when carrying out high temperature detection due to unbalance stress
Phenomenon, while also due to the illusion of rupture of membranes qualification is presented with respect to lower floor's weight sliding for upper strata weight.
Utility model content
The purpose of this utility model is to provide a kind of diaphragm high-temperature behavior detection device, to solve to exist in the prior art
Due to the problem of detection of diaphragm high-temperature behavior is inaccurate caused by detection device.
To achieve the above object, the technical solution of the diaphragm high-temperature behavior detection device of the utility model is：
Technical solution 1：Diaphragm high-temperature behavior detection device, including supporting table and compressing member, the supporting table is equipped with branch
Platform hole is supportted, the compressing member is equipped with for compressing member hole corresponding with supporting table hole, is set between the supporting table and compressing member
The pre-press in supporting table by diaphragm pre-pressing to be measured is useful for, the pre-press is equipped with corresponding with being used to support platform hole
Pre-press hole.
Advantageous effect：It is equipped between supporting table and compressing member for the pre-press by diaphragm pre-pressing in supporting table, led to
It crosses pre-press diaphragm to be measured is compressed to diaphragm pre-pressing to be measured in supporting table rather than directly by compressing member, it can be effective
Compressing member diaphragm fold caused by during being fixed and clamped and unbalance stress phenomenon are avoided, increases the test of diaphragm high-temperature behavior
Accuracy.Solve asking due to diaphragm high-temperature behavior detection inaccuracy caused by detection device in the prior art
Topic.
Technical solution 2：On the basis of technical solution 1, the pre-press include washer, the washer be equipped with for
The corresponding gasket hole in supporting table hole is provided with supporting table at the washer outer and turns down and be used to coordinate with pre- with supporting table
Make turning edge for diaphragm flattening to be measured when compressing diaphragm to be measured.Washer turns edge to be turned down towards supporting table, when to be measured with washer pre-pressing
The certain active force of diaphragm is applied to by turning edge during diaphragm, so as to which diaphragm to be measured be flattened, diaphragm can be effectively prevent to compress
Shi Fasheng buckling phenomenas.
Technical solution 3：On the basis of technical solution 2, described turn edge is obliquely installed, at the supporting table outer be equipped with
The supporting table chamfering for the adaptation that turns edge, it is described turn edge by with supporting table chamfering coordinate with make in pre-pressing diaphragm to be measured it is to be measured every
Film flattens.It turns edge and is coordinated with supporting table by chamfering, washer applies skew force in pre-pressing diaphragm to be measured to diaphragm to be measured, can
It prevents from damaging diaphragm to be measured in pre-pressing.
Technical solution 4：On the basis of technical solution 1 or 2 or 3, the compressing member be tubular structure, the tubular structure
Inside side walls be equipped with compressing member internal thread, the supporting table includes major diameter section and path section, in the supporting table with it is to be measured
The supporting surface of diaphragm support cooperation is arranged in path section, and the major diameter section is equipped with supporting table external screw thread, in the compressing member
Diaphragm to be measured is pressed in supporting table by screw thread with supporting table external screw thread rotatable engagement.Compressing member passes through thread fitting with supporting table
Diaphragm stress to be measured when diaphragm to be measured is pressed in supporting table, facilitates the connection of compressing member and supporting table, and can ensure to compress
Uniformly.
Technical solution 5：On the basis of technical solution 4, the peripheral surface of the major diameter section of the supporting table includes circular arc face
Divide and planar section, the supporting table external screw thread are arranged on arc surface part.The major diameter section of supporting table includes arc surface part
And planar section, compressing member is not only facilitated to screw and alleviates supporting table weight.
Technical solution 6：On the basis of technical solution 5, the arc surface part setting at least two, planar section setting
At least two, arc surface part is alternately arranged with planar section in supporting table circumferential direction.Circular arc portion is equipped with two with planar section
It is a above and be alternately arranged and ensure compressing member and uniform force application during supporting table thread fitting.
Technical solution 7：On the basis of technical solution 1 or 2 or 3, the supporting table is equipped with air hole, the air hole
One end open be arranged on the supporting surface coordinated with diaphragm support to be measured.Supporting table be equipped with air hole, can by diaphragm to be measured with
Air discharge between supporting table contact surface, ensures that diaphragm is laid in supporting table.
Technical solution 8：On the basis of technical solution 2 or 3, the pre-press further includes to apply precompression to washer
Pressing plate, the pressing plate be equipped with plate hole corresponding with gasket hole.Pressing plate is arranged on above washer, can be increased washer and is applied to
Pressing force on diaphragm ensures washer by diaphragm pre-pressing to be measured in supporting table.
Technical solution 9：On the basis of technical solution 8, the diameter of the plate hole is more than the diameter of gasket hole.Plate hole
Diameter is more than washer bore dia, can avoid pressing plate directly and membrane contacts, causes diaphragm fold.
Technical solution 10：On the basis of technical solution 8, annular is equipped with towards the side of washer at the outer of the pressing plate
It turns edge, the internal diameter that the annular turns edge is more than the outer diameter of washer.It can ensure that pressure plate structure only increases the pressing force of washer,
It will not lead to diaphragm fold or unbalance stress to be measured due to washer is relative to supporting table movement.
Description of the drawings
Fig. 1 is the structure diagram of the specific embodiment one of the diaphragm high-temperature behavior detection device of the utility model；
Fig. 2 is the structure diagram of supporting table in Fig. 1；
Fig. 3 is the structure diagram of Fig. 1 middle washers；
Fig. 4 is the structure diagram of the washer of the specific embodiment two of the diaphragm high-temperature behavior detection device of the utility model；
In Fig. 1 to Fig. 3：1- supporting tables, 2- washers, 3- pressing plates, 4- compressing members, 5- diaphragms to be measured, 10- supporting tables hole, 11-
Path section, 12- major diameter sections, 13- air holes, 20- gasket holes, 30- plate holes, 40- compressing members hole；
In Fig. 4：21- washers, 201- gasket holes.
Specific embodiment
The embodiment of the diaphragm high-temperature behavior detection device of the utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment one of the diaphragm high-temperature behavior detection device of the utility model, as shown in Figure 1 to Figure 3, diaphragm are high
Warm device for detecting performance, including supporting table 1 and compressing member 4, the supporting table 1 is equipped with supporting table hole 10, on the compressing member 2
Equipped with for 10 corresponding compressing member hole 20 of supporting table hole, supporting table hole 10 and compressing member hole 20 are for making diaphragm 5 to be measured
Part of detecting is hanging.When carrying out membrane properties test, diaphragm 5 to be measured is placed in supporting table 1, in order to ensure that diaphragm is carrying out height
Uniform force and fold and sliding will not occur for diaphragm flattening during warm performance detection, be equipped between supporting table 1 and compressing member 2
For the pre-press by 5 pre-pressing of diaphragm to be measured in supporting table 1, it is equipped in pre-press accordingly corresponding with supporting table hole 10
Pre-press hole.It should be noted that the diaphragm to be measured 5 in the present embodiment is circular diaphragm, to ensure that it is high that diaphragm to be measured carries out
The effective area of warm performance detection, it is preferred that the diameter in supporting table hole 10 is more than 50mm.To ensure the measurement essence of diaphragm 5 to be measured
Exactness, the diameter of diaphragm 5 to be measured are slightly larger than the outer diameter for the supporting table 1 for placing diaphragm 5 to be measured.By pre-press by diaphragm 5 to be measured
In being pressed in supporting table rather than directly being compressed diaphragm to be measured by compressing member 4, it can effectively avoid compressing member 4 and compressing
Diaphragm fold caused by the process and unbalance stress phenomenon increase the accuracy of diaphragm high-temperature behavior test.It solves existing
Due to the problem of detection of diaphragm high-temperature behavior is inaccurate caused by detection device present in technology.
Pre-press includes washer 2, washer 2 be equipped with 10 corresponding gasket hole 20 of supporting table hole, in order to by diaphragm 5 to be measured
Flattening is provided with turning edge for the fold of supporting table 1 in the outer of washer 2, when diaphragm 5 to be measured with 2 pre-pressing of washer, on washer
Turn edge with supporting table 1 cooperation flatten diaphragm 5 to be measured.It should be noted that prevent washer 2 in pre-pressing diaphragm 5 to be measured
The damage of Shi Zaocheng diaphragms to be measured, turning edge for washer 2 are obliquely installed, and 1 outer of supporting table is equipped with and the supporting table that is adapted to of turning edge
Chamfering.When diaphragm to be measured is placed on the suitable position in supporting table 1, washer 2 is placed in the plane of supporting table 1, slightly
Several lower gaskets are shaken, turning edge for washer is made to coordinate with the supporting table chamfering of 1 outer of supporting table, utilize tumbling along to branch for washer 2
It supports platform chamfering and applies skew force.The component of skew force generates outside pulling force to diaphragm 5 to be measured, so as to reach diaphragm 5 to be measured
The effect flattened in supporting table.Supporting table chamfering can be not provided in supporting table in other embodiments, the inclined of washer 2 turns over
Edge directly coordinates pre-pressing diaphragm to be measured with supporting table outer.The diameter of gasket hole 20 is consistent with the internal diameter in supporting table hole, with true
Pressuring action of the washer 2 to diaphragm 5 to be measured is protected, the diameter of gasket hole may be slightly larger than or be slightly less than support in other embodiments
The internal diameter in platform hole.Washer 2 is made of high temperature resistant organic material, on the one hand, ensures washer 2 in 5 heating process of diaphragm to be measured
Chemical stability；On the other hand ensure pressuring action of the washer 2 to diaphragm 5 to be measured.Preferably, gasket materials PTFE, it is resistance to
Hot temperature is more than 300 DEG C, and washer can also be used the materials such as PPS materials or organic silica gel and be made in other embodiments.
It is generally relatively light in view of the quality of washer 2, be not enough to diaphragm 5 to be measured being pressed in supporting table 1, washer 2 with
Another pre-press, i.e., the pressing plate 3 in the present embodiment are additionally provided between compressing member 4.It is right with supporting table hole 10 to be again provided on pressing plate 3
The plate hole 30 answered.For pressing plate 30 is avoided to be contacted with diaphragm 5 to be measured, 5 fold of diaphragm to be measured or rupture are caused, in the present embodiment
The diameter of plate hole 30 is more than the diameter of gasket hole 20.Preferably to increase the pre-pressing force of washer 2 by pressing plate 3, pressing plate 3
It turns edge towards the side of washer 2 equipped with annular, and the annular internal diameter to turn edge is more than the outer diameter of washer 2.When washer 2 is by diaphragm to be measured
After 5 pre-pressings are in supporting table 1, pressing plate 3 is pressed in 2 top of washer naturally, not only increases the pre-pressing force of washer 2 and will not make
Washer 2 is moved relative to supporting table 1.Then pre-press 4 is placed on pressing plate 3, so as to which diaphragm 5 to be measured be made to be in nature compression shape
State slightly bestows diaphragm 5 to be measured certain flattening power and pre-pressing force, fixes its flattening, the compression that diaphragm 5 to be measured is stablized
In supporting table 2.In other embodiments, pressing plate can be not provided with, pressing plate may be alternatively provided as common centre and carry plate hole
The platy structure that tablet or other intermediate with plate hole and guarantee pressing plates are not in direct contact with diaphragm to be measured.
Diaphragm 5 to be measured is pressed in supporting table 1 in order to facilitate compressing member 4, supporting table 1 includes path section 11 and major diameter section
12, the supporting surface in supporting table 1 with diaphragm 5 to be measured support cooperation is arranged in the path section 11 of supporting table 1.In the present embodiment
Compressing member 4 is tubular structure, and the inside side walls of tubular structure are equipped with compressing member internal thread, the major diameter section 12 of supporting table 1 it is outer
Side side wall is equipped with supporting table external screw thread, and compressing member internal thread forms compressing member 4 and support with supporting table external screw thread thread fitting
12 thread fitting of major diameter section of platform 1 realizes that compressing member 4 applies diaphragm 5 to be measured the effect of pressing force, so as to limit diaphragm to be measured
5 movement ensures measurement accuracy.To increase accuracy of measurement, compressing member hole 40 in the present embodiment is straight with supporting table hole 10
Diameter size is consistent, and the side wall internal diameter size of compressing member 4 is more than the side wall outer diameter of pressing plate 3, ensures compressing member 4 only to device
Apply a pressure, without playing the role of positioning.In other embodiments, compressing member hole is slightly larger than the diameter in supporting table hole；Support
Platform is alternatively upper and lower internal diameter structure consistent with outer diameter etc., and other facilitate diaphragm and washer to be measured, compressing member etc. to place and to be measured
The structure that diaphragm compresses, the side wall internal diameter size of compressing member 4 can be equal to the side wall outer diameter of pressing plate 3.Supporting table 1 is used for
The plane surface of diaphragm 5 to be measured is placed using mirror surface treatment, supporting table surface is avoided to damage diaphragm 5 to be measured.In addition, branch
The path section 11 for supportting platform 1 is equipped with air hole 13 as shown in Figure 2, it is ensured that diaphragm 5 to be measured and the path section 11 of supporting table 1
Air discharge between surface, ensures measurement accuracy.
To ensure that it is convenient and efficient that the opposite supporting table of compressing member 4 screws about 1, compressing member internal thread is matched with supporting table external screw thread
The front end of conjunction is equipped with guide thread.In other embodiments, compressing member can be connected with supporting table by structures such as clamping, bolts
It connects, ensures that compressing member applies diaphragm to be measured certain pressing force.It should be noted that mitigate the weight of supporting table 1 simultaneously
Ensure compressing member 4 and diaphragm uniform force to be measured during supporting table thread fitting, the peripheral surface of the major diameter section 12 of supporting table 1 includes circle
Cambered surface part and planar section, supporting table external screw thread are arranged on arc surface part.In the present embodiment, the major diameter section of supporting table 1
12 circular arc portion sets four, and planar section sets four, and arc surface part is submitted with circumferential direction of the planar section in supporting table 1
For arrangement.The arc surface part of the peripheral surface of the major diameter section of supporting table and planar section can be respectively provided with three in other embodiments
And be alternately arranged along in supporting table circumferential direction, arc surface part can also be respectively provided with four or more with planar section, circular arc face
Divide and can arbitrarily arrange that supporting table peripheral surface can also be set as needed with arrangement of the planar section in supporting table circumferential direction
For the arc surface coaxial with the path section of supporting table.
The specific work process of the diaphragm high-temperature behavior detection device of the utility model, by sample size it is suitable it is to be measured every
Film 5, which flattens, is placed on 11 upper surface of path section of supporting table 1, then placement washer 2 on diaphragm 5 to be measured, weak vibrations pad
Circle 2 coordinates its edge and the path section chamfering of supporting table 1, then puts pressing plate 3, and slight rotary pressure plate 3, makes itself and pad
It encloses 2 smooth, and diaphragm to be measured is made to be close to 11 surface of path section of supporting table 1；Finally compressing member 4 is put, and rotatably compresses part 4
With 12 thread fitting of major diameter section of supporting table 1, the power of compressing member 4 is transferred on washer 2, is further flattened and is compressed diaphragm to be measured
5.The device is put into oven, is heated to treating testing temperature, and is kept the temperature to setting time, band high temperature gloves withdrawing device, observation
Whether the diaphragm in overhanging portion there is flat rupture, judges whether the high-temperature behavior of diaphragm reaches requirement.It should be noted that
To ensure measurement accuracy, the effective area of diaphragm 5 to be measured is not less than 1962.5mm2.The detection device can be used for measuring temperature model
It is 150 ~ 250 DEG C to enclose, and the time index of test is porous available for test polyethylene porous film, polypropylene not less than 45 minutes
Film or polypropylene, polyethylene/polypropylene porous compound film.The diaphragm high-temperature behavior detection device ensure that diaphragm is carrying out
Do not occur the situation of sliding, fold and unbalance stress during detection, ensure the accuracy that testing result is judged.Solves the prior art
Present in due to the problem of detection of diaphragm high-temperature behavior is inaccurate caused by detection device.
The specific embodiment two of the diaphragm high-temperature behavior detection device of the utility model, the diaphragm high temperature with the utility model
The specific embodiment one of device for detecting performance is compared, and is differed only in：As shown in figure 4, washer 21 turns edge and gasket hole 201
Axis is arranged in parallel.
Claims (10)
1. diaphragm high-temperature behavior detection device, including supporting table and compressing member, the supporting table is equipped with supporting table hole, the pressure
Tight part is equipped with for compressing member hole corresponding with supporting table hole, it is characterized in that, it is equipped with and uses between the supporting table and compressing member
In the pre-press by diaphragm pre-pressing to be measured in supporting table, the pre-press is equipped with precompressed corresponding with being used to support platform hole
Part hole.
2. diaphragm high-temperature behavior detection device according to claim 1, it is characterized in that, the pre-press includes washer, institute
It states washer to be equipped with for gasket hole corresponding with supporting table hole, being provided with supporting table at the washer outer turns down and be used for
Coordinate to make turning edge for diaphragm flattening to be measured in pre-pressing diaphragm to be measured with supporting table.
3. diaphragm high-temperature behavior detection device according to claim 2, it is characterized in that, described turn edge is obliquely installed, described
Be equipped at supporting table outer with the supporting table chamfering that is adapted to of turning edge, it is described to turn edge by coordinating with supporting table chamfering in pre-pressing
Flatten diaphragm to be measured during diaphragm to be measured.
4. the diaphragm high-temperature behavior detection device according to claims 1 or 2 or 3, it is characterized in that, the compressing member is tubular
Structure, the inside side walls of the tubular structure are equipped with compressing member internal thread, and the supporting table includes major diameter section and path section, institute
It states the supporting surface with diaphragm support to be measured coordinated in supporting table to be arranged in path section, the major diameter section is equipped with the outer spiral shell of supporting table
Diaphragm to be measured is pressed in supporting table by line, the compressing member internal thread with supporting table external screw thread rotatable engagement.
5. diaphragm high-temperature behavior detection device according to claim 4, it is characterized in that, outside the major diameter section of the supporting table
Circumferential surface includes arc surface part and planar section, and the supporting table external screw thread is arranged on arc surface part.
6. diaphragm high-temperature behavior detection device according to claim 5, it is characterized in that, the arc surface part setting is at least
Two, planar section setting at least two, arc surface part is alternately arranged with planar section in supporting table circumferential direction.
7. the diaphragm high-temperature behavior detection device according to claims 1 or 2 or 3, it is characterized in that, the supporting table is equipped with
Air hole, the one end open of the air hole are arranged on the supporting surface coordinated with diaphragm support to be measured.
8. the diaphragm high-temperature behavior detection device according to Claims 2 or 3, it is characterized in that, the pre-press further includes use
In the pressing plate for applying precompression to washer, the pressing plate is equipped with plate hole corresponding with gasket hole.
9. diaphragm high-temperature behavior detection device according to claim 8, it is characterized in that, the diameter of the plate hole is more than pad
The diameter of collar aperture.
10. diaphragm high-temperature behavior detection device according to claim 8, it is characterized in that, direction at the outer of the pressing plate
The side of washer turns edge equipped with annular, and the internal diameter that the annular turns edge is more than the outer diameter of washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721563075.6U CN207516285U (en) | 2017-11-21 | 2017-11-21 | Diaphragm high-temperature behavior detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721563075.6U CN207516285U (en) | 2017-11-21 | 2017-11-21 | Diaphragm high-temperature behavior detection device |
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| Publication Number | Publication Date |
|---|---|
| CN207516285U true CN207516285U (en) | 2018-06-19 |
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ID=62539634
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721563075.6U Active CN207516285U (en) | 2017-11-21 | 2017-11-21 | Diaphragm high-temperature behavior detection device |
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| CN (1) | CN207516285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965190A (en) * | 2020-08-26 | 2020-11-20 | 深圳市壹倍科技有限公司 | Flexible membrane material surface defect detection device and system |
-
2017
- 2017-11-21 CN CN201721563075.6U patent/CN207516285U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965190A (en) * | 2020-08-26 | 2020-11-20 | 深圳市壹倍科技有限公司 | Flexible membrane material surface defect detection device and system |
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Address after: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: Kaibo Energy Technology Co.,Ltd. Address after: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee after: Kaibo Energy Technology Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY RESEARCH INSTITUTE Co.,Ltd. |