CN216484734U - Detection device - Google Patents

Abstract

The embodiment of the application relates to a detection device, relates to the technical field of thermal insulation assessment, and mainly aims to provide an accurate detection device. The detection device comprises: the first component is used for heating the piece to be detected; the second component is arranged on one side of the first component, and a test area of the piece to be tested is formed between the second component and the first component; the pressurizing component is arranged on one side of the piece to be tested, which is far away from the first component, and is used for applying pressure to the piece to be tested. In the thermal insulation evaluation experiment of the thermal insulation film of the battery to be tested, the pressurizing part can apply pressure to the thermal insulation film of the battery, and the actual working condition of the thermal insulation film of the battery under the condition that the battery core is heated is simulated, so that the thermal insulation evaluation accuracy of the thermal insulation film of the battery can be improved.

Description

Detection device

Technical Field

The embodiment of the application relates to the technical field of thermal insulation assessment, in particular to a detection device.

Background

New energy electric vehicles gradually start to replace fuel vehicles and are rapidly developing. In the development of new energy electric vehicles, the safety of batteries of the new energy electric vehicles is an important factor for restricting the rapid development of the new energy electric vehicles.

At present, in order to improve the safety of the battery, research on the conditions of short circuit and explosion in the battery also becomes an important part in the research and development technology of the ion battery.

SUMMERY OF THE UTILITY MODEL

In view of this, the present disclosure provides a detection device, and mainly aims to provide an accurate detection device.

The application provides a detection device for detect the thermal-insulated effect of piece that awaits measuring, include: the first component is used for heating the piece to be measured; the second component is arranged on one side of the first component, and a test area of the piece to be tested is formed between the second component and the first component; the pressurizing component is arranged on one side of the piece to be tested, which is far away from the first component, and is used for applying pressure to the piece to be tested.

In the technical scheme of this application embodiment, in the thermal-insulated aassessment experiment of a battery thermal-insulated membrane that awaits measuring, can exert pressure to the battery thermal-insulated membrane through the pressure components, under the simulation electric core is heated, the operating condition of battery thermal-insulated membrane to can improve the thermal-insulated aassessment accuracy of battery thermal-insulated membrane.

In some embodiments, the pushing end of the pressing member is used for driving the second member, so that the to-be-tested member is clamped between the second member and the first member. The direct centre gripping of a battery thermal-insulated membrane that will await measuring is in the second part and between the first part, compare in the heating of keeping away from of battery thermal-insulated membrane the mode of the first part of a piece that awaits measuring can directly embody the operating condition of battery module more, improves the thermal-insulated aassessment accuracy of battery thermal-insulated membrane.

In some embodiments, the pressurizing member includes a driving cylinder and a push rod, and the second member is fixed to or placed at an end of the push rod. The overall stability of the device under applied pressure may be improved by the manner in which the second member is secured to the end of the push rod. The second component is arranged at the end part of the push rod, so that the second component can be conveniently replaced, and later maintenance is facilitated.

In some embodiments, the second component comprises: and (4) cooling the battery core. The battery core cold plate is used as the second component, so that the actual working condition of the battery heat insulation film in the heated state of the battery core can be simulated more truly, and the heat insulation evaluation accuracy of the battery heat insulation film can be improved.

In some embodiments, the second component further comprises: the battery core cold plate is locked on the locking mechanism of the locking plate. The battery core cold plate is locked on the locking mechanism of the locking plate, so that the position of the battery core cold plate can be accurately locked, and the first component, the battery heat insulation film and the battery core cold plate are ensured not to generate bias, thereby leading to test errors.

In some embodiments, the locking mechanism is detachably disposed on the body of the locking plate. The locking mechanism can be conveniently replaced to adapt to different electric core cold plates.

In some embodiments, the locking mechanism includes a bezel or stop disposed on the locking plate. The mode of adopting caulking groove or dog can realize the lock of low-cost to electric core cold drawing and attach.

In some embodiments, cooling lines are disposed within the locking plate. After the test, can open cold circulation through cooling line, help lock attaches the board cooling, convenient quick next thermal-insulated realization of going on to improve the efficiency of test.

In some embodiments, the second component further comprises: and the at least two temperature sensors are arranged on the cold surface of the electric core cold plate. The temperature difference of different areas of the electric core cold plate can be known in a more detailed way, so that the problems can be analyzed later and the thermal evaluation device can be improved.

In some embodiments, the first component further comprises: the door panel, the cavity has the opening, door panel switch's setting in the opening. In carrying out thermal-insulated aassessment experiment, can adopt the door plant to close the opening of cavity earlier, heat up to predetermined temperature after in to the cavity through heating element, open the door plant again, to the realization that insulates against heat of the piece that awaits measuring for heating element can accept predetermined temperature's environment in the twinkling of an eye, and the thermal-insulated evaluation accuracy of thermal-insulated membrane of simulation battery module that can be more true improves the thermal-insulated accuracy of assessing of battery.

In some embodiments, the door panel is a pull panel slidably connected to the open edge runner. By adopting the mode of the drawing plate, the door plate can be further quickly opened and closed, so that the piece to be tested can receive the environment with the preset temperature in a short time, the actual working condition of thermal runaway of the battery module can be more truly simulated, and the thermal insulation evaluation accuracy of the battery thermal insulation film is improved.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

fig. 1 is a schematic structural state diagram of a detection apparatus before a device under test is tested according to an embodiment of the present application;

fig. 2 is a schematic structural state diagram of a testing apparatus for testing a device under test according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a second component and a pressing component of a detection device according to an embodiment of the present disclosure;

fig. 4 is a partial structural schematic diagram of a locking plate of a detection device according to an embodiment of the present application.

The reference numbers in the detailed description are as follows:

a first part 10, a chamber 11, a heating element 12, a door panel 13;

the second component 20, the cell cold plate 21, the locking plate 22, the locking mechanism 221, the cooling pipeline 222 and the temperature sensor 23;

a piece to be tested 201;

and a pressing member 30.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: there are three cases of A, A and B, and B. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse"

Length, width, thickness, up, down, front, back, left and right "

Vertical, horizontal, top, bottom, inner, outer, clockwise and anticlockwise "

The references to "axial," "radial," "circumferential," etc., are based on the orientation or positional relationship shown in the drawings and are intended only for convenience in describing the embodiments of the present application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Along with the rise of new energy electric automobiles, the safety of batteries is more and more widely regarded. Wherein, the thermal-insulated effect of the heat insulating mattress among the battery module has played the key effect to the security of battery.

In order to improve the safety, a heat insulation pad is usually arranged between the battery cells, the heat insulation effect of the heat insulation pad is a premise for improving the safety performance, and the actual heat insulation effect of the heat insulation pad can be better verified through a heat insulation evaluation experiment on the heat insulation pad. However, the conventional thermal evaluation device for a building cannot perform an accurate thermal evaluation test on the thermal insulation film of the battery module due to the actual thermal insulation effect of the thermal insulation film after thermal runaway of the battery module.

The heat insulation experiment device for the heat insulation pad in the market adopts a detection device in the field of building materials, and in the field of building materials, samples in the detection device are freely placed to compound the real environment of building fire. The thermal insulation effect of the thermal insulation film testing device is not consistent with that of the existing thermal evaluation device for the building.

However, the invention notices that when the battery module is in a thermal runaway state, the thermal runaway state is different from the environment of a heat insulation layer in the building field, and when the battery module is in the thermal runaway state, the battery core expands to cause the heat insulation pad to be extruded, so that the shape of the heat insulation pad changes and the thickness of the heat insulation pad changes.

From this, the inventor inspires and has designed a new-type detection device of section, can realize exerting pressure to the piece that awaits measuring, disposes one set of extra pressure parts for in the heat insulating mattress to the battery module in carrying out thermal-insulated aassessment experiment, can adopt pressure device to exert pressure to it, come simulation electric core under being heated, the operating condition of battery thermal-insulated membrane, thereby can improve the thermal-insulated aassessment accuracy of battery thermal-insulated membrane.

The detection device disclosed by the embodiment of the application can be used for thermal insulation layers under pressure environments such as a battery module and a pressure container thermal insulation layer, the detection device using the scheme can be used for carrying out thermal insulation evaluation experiments on the thermal insulation layers, the real thermal insulation effect under the thermal insulation layer stressed environment can be simulated, and the thermal evaluation accuracy of the thermal insulation film is improved.

Referring to fig. 1 to 3, fig. 1 is a schematic view illustrating a structural state of a detection apparatus before testing a device under test according to some embodiments of the present application; fig. 2 is a schematic structural state diagram of a testing apparatus for testing a device under test according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a second component and a pressing component of a detection device according to an embodiment of the present application. The application provides a detection device for detect the thermal-insulated effect of piece that awaits measuring, detection device includes: the device comprises a first component 10, a second component 20 and a pressurizing component 30, wherein the first component 10 is used for heating a piece 201 to be tested; the second component 20 is arranged on one side of the first component 10, and a test area of the to-be-tested piece 201 is formed between the second component 20 and the first component 10; the pressing member 30 is disposed on a side of the device under test 201 away from the first member 10, and is configured to apply a pressure to the device under test 201.

The first member 10 is generally an electrically heated member, but is not limited thereto, and other chemical combustion members or the like may be used as the thermal environment in the evaluation of the detection device.

The first component 10 is used to simulate the environment of the actual temperature of the object 201 to be measured, generally, the first component 10 can be heated to 500-2000 degrees celsius, and the specific heating temperature depends on the actual temperature environment required.

The first member 10 includes: the chamber 11 and the heating element 12, the inner wall of the chamber 11 may be provided with a heat insulating layer, so as to realize heat insulation of the temperature in the chamber 11. The heating element 12 is arranged in the cavity 11 and can be arranged on the heat insulation layer, the temperature of the heating element 12 is controllable, and the simulation of the required temperature environment can be realized in the cavity 11.

The second member 20 is generally a member made of a metal material, and the second member 20 is in a room temperature environment before the test, and serves as a cold environment in the evaluation of the detection device, so as to simulate a cold environment. It is to be understood that a cold environment is a relative hot environment and is not to be understood as being limited to an environment below room temperature. The metal material may be steel, aluminum material, etc.

The pressing member 30 is used to apply pressure to the device under test 201 in the test area.

In practice, the pressing member 30 may cooperate with the second member 20 to apply a pressing force to the device under test 201. In some embodiments, the pressure output end of the pressurizing member is applied to the second member, and the pressure is transmitted to the member to be tested through the second member. The object to be measured is placed on the second part and is applied with pressure, and the second part and the first part clamp the object to be measured, for example, the object to be measured is clamped between the second part and the inner wall of the chamber, or the object to be measured is clamped between the second part and the heating element.

In implementation, the pressing component 30 can cooperate with the first component 10 and the second component 20 to apply pressure to the device under test 201. In some embodiments, the pressure output of the pressing member 30 is applied to the first member 10 as well as the second member 20. The pressing member 30 has a clamp arm, and in the heat insulation test, the clamp arm clamps the first member 10 and the second member 20 and holds the device under test 201 between the first member 10 and the second member 20.

In an implementation, the pressing component 30 may be a component that independently applies pressure to the device 201 to be tested, for example, a clamping device is used to clamp the device 201 to be tested, and the clamping component of the clamping device is made of a material with high thermal conductivity. In some embodiments, the pressure output end of the pressure member 30 is adapted to be applied directly to the test object 201. The pressing member 30 has a clamp arm, and in the thermal insulation test, the clamp arm clamps the to-be-tested object 201 and applies pressure to the to-be-tested object 201. The to-be-tested member 201 may be a heat insulation layer, and the heat insulation layer is a heat insulation layer applied in a pressurized environment, especially a heat insulation film in a battery module, and is disposed between adjacent battery cells.

In the technical scheme of this application embodiment, in the thermal-insulated aassessment experiment of the 201 battery heat insulating film that awaits measuring, can exert pressure to the battery heat insulating film through pressure parts 30, under the simulation electric core is heated, the operating condition of battery heat insulating film to can improve the thermal-insulated aassessment accuracy of battery heat insulating film.

According to some embodiments of the present application, optionally, the pushing end of the pressing member 30 is used for driving the second member 20, so that the to-be-tested object 201 is clamped between the second member 20 and the first member 10.

The pushing end of the pressing member 30 is a member for outputting power of the pressing member 30, and for example, the pressing member 30 is a hydraulic cylinder, and the pushing end is a hydraulic rod. The hydraulic rod extends out to push the second part 20 to move close to the heating element 12, and the part to be tested 201 is clamped between the second part 20 and the first part 10, and the clamping force applied to the part to be tested 201 can be controlled by controlling the pressurizing part 30. Generally, the clamping force can be matched according to the final heating temperature of the heating element 12, for example, when the heating temperature of the first component 10 is 600 degrees celsius, the pressing component 30 applies 1-1.2 mpa pressure to the dut 201. When the heating temperature of the first component 10 is 1000 ℃, correspondingly, the pressing component 30 applies 1.5-2 mpa to the to-be-measured piece 201.

With the direct centre gripping of 201 battery thermal insulation membrane that awaits measuring between second part 20 and heating element 12, compare in the mode that heating element 12 was kept away from to the battery thermal insulation membrane, can directly embody the operating condition of battery module more, improve the thermal-insulated aassessment accuracy of battery thermal insulation membrane.

According to some embodiments of the present application, optionally, the pressure member 30 comprises a driving cylinder and a push rod, and the second member 20 is fixed to or placed at an end of the push rod.

The second member 20 may be fixed to the end of the push rod by welding, bolting, or fixing with an external member. And the second component 20 is placed at the end part of the push rod, and is suitable for the push rod with a push surface with a larger area at the end part of the push rod.

By fixing the second member 20 to the end of the push rod, the overall stability of the device under applied pressure is improved. The second component 20 is arranged at the end part of the push rod, so that the second component 20 can be conveniently replaced, and later maintenance is facilitated.

According to some embodiments of the present application, optionally, the second component 20 comprises: a cell cold plate 21.

The battery core cold plate 21 refers to a metal shell part of a battery cell, and can truly simulate the environment of a thermal insulation layer in a battery module. In the model selection of the battery core cold plate 21, the model can be determined according to the model of the battery module applied by the thermal insulation layer to be tested.

The thermal insulating layer is being applied to in the battery module, and the thermal insulating layer is in between adjacent battery monomer, and electric core cold plate 21 can understand the free metal casing part of battery, promptly, compares and adopts a sheet metal as second part 20, directly adopts the free metal casing part of battery as the second part, can directly contact with the thermal insulating layer for the environment of thermal insulating layer true simulation battery module in detection device. By adopting the electric core cold plate 21 as the second component 20, the actual working condition of the battery heat insulation film in the heating state of the electric core can be more truly simulated, so that the heat insulation evaluation accuracy of the battery heat insulation film can be improved.

According to some embodiments of the present application, optionally, the second component 20 further comprises: the locking attachment plate 22 and the cell cold plate 21 are locked to the locking attachment mechanism 221 of the locking attachment plate 22.

The locking plate 22 is a locking part designed to match the electric core cold plate 21, and since the heat insulation film is in a pressurized state, the size of the electric core cold plate 21 is small during pressurization, and the bias of the first part 10, the battery heat insulation film and the electric core cold plate 21 is easy to occur.

The locking mechanism 221 of the cell cold plate 21 locked to the locking plate 22 can accurately lock the position of the cell cold plate 21, so as to ensure that the first component 10, the battery heat insulation film and the cell cold plate 21 are not biased to cause a test error.

According to some embodiments of the present application, optionally, the locking mechanism 221 is detachably disposed to the body of the locking plate 22.

Please refer to fig. 4, in which fig. 4 is a schematic partial structure diagram of a locking plate of a detection apparatus according to an embodiment of the present application. The locking mechanism 221 and the body of the locking plate 22 may be bolted together. The body of the locking plate is a first flat plate, a locking structure for locking the electric core cold plate is arranged on a second flat plate of the locking mechanism, and the first flat plate and the second flat plate are connected through bolts.

When the battery cell cold plates 21 of different models need to be replaced, the bolts are disassembled, and the locking mechanism 221 matched with the battery cell cold plates 21 needing to be replaced can be conveniently replaced.

According to some embodiments of the present application, optionally, the locking mechanism 221 includes a bezel or stop disposed on the locking plate 22.

The shape of caulking groove can match with the periphery shape of electric core cold drawing 21, through modes such as clearance fit, realizes that the periphery card of electric core cold drawing 21 is held in the caulking groove. In the preparation, the locking mechanism 221 provided with the caulking groove may be prepared by machining or casting.

The dog can be a plurality of, and the figure that a plurality of dogs enclose matches with the periphery shape of electric core cold drawing 21, through modes such as clearance fit, realizes that the periphery card of electric core cold drawing 21 is held in the figure that a plurality of dogs enclose. In the preparation, the locking mechanism 221 provided with the stopper may be prepared by welding or casting. The battery core cold plate 21 is generally rectangular, and the number of the stop blocks can be 4, and the stop blocks are respectively arranged at four corners of the battery core cold plate 21.

The low-cost locking of the electric core cold plate 21 can be realized by adopting a caulking groove or a stop block.

According to some embodiments of the present application, optionally, cooling lines 222 are provided within the locking plate 22.

The cooling pipeline 222 includes a liquid inlet and a liquid outlet, and by inputting cooling liquid into the liquid inlet, the cooling liquid flows out from the liquid outlet after passing through the cooling pipeline 222 in the locking plate 22, so as to realize rapid cooling of the locking plate 22. When cooling is required, external circulating cooling lines are only required to be connected to the liquid inlet and the liquid outlet of the cooling pipeline 222. In the thermal insulation evaluation test, the external circulating cooling line is removed from the liquid inlet and the liquid outlet of the cooling pipeline 222.

After the test, can open cold circulation through cooling line 222, help lock attaching plate 22 cooling, convenient quick the next realization that insulates against heat of going on to improve the efficiency of test.

According to some embodiments of the present application, optionally, the second component 20 further comprises: and the at least two temperature sensors 23 are arranged on the cold surface of the cell cold plate 21.

The cold face of electric core cold drawing 21 is the face of the thermal-insulated membrane of laminating, and two at least temperature sensor 23 distribute in the different positions of the cold face of electric core cold drawing 21 to adopt 5 temperature sensor 23 as the example, wherein 4 temperature sensor 23 distribute in 4 corner positions of the cold face of electric core cold drawing 21, 1 sets up in the central authorities of the cold face of electric core cold drawing 21 in addition.

The temperature difference of different areas of the cell cold plate 21 can be known in a more detailed manner, so that the problem can be analyzed later and the thermal evaluation device can be improved.

According to some embodiments of the present application, optionally, the first component 10 further comprises: door panel 13, chamber 11 have an opening, and door panel 13 is the setting in opening and shutting of door panel 13.

The door 13 is a door capable of opening and closing the opening of the chamber 11, and after the door 13 is closed, the heating element 12 does not generate heating influence on the heat insulation board outside the chamber 11 in the gradual temperature rise process.

Different with conventional circuit fire circumstances in the building field, after the condition of a fire appeared in the battery module, it possesses the rapid characteristics of intensification, in order to satisfy the true condition of a fire environment of the insulating layer in the battery module, in carrying out thermal-insulated aassessment experiment, can adopt door plant 13 to close the opening of cavity 11 earlier, heat up to the predetermined temperature after in to cavity 11 through heating element 12, door plant 13 is opened again, it realizes to insulate against heat to the piece 201 that awaits measuring, make heating element 12 can receive the environment of predetermined temperature in the twinkling of an eye, the actual operating mode of the thermal runaway of simulation battery module that can be more true, improve the thermal-insulated aassessment accuracy of battery thermal-insulated membrane.

According to some embodiments of the present application, optionally, door panel 13 is a pull-out panel slidably connected to the opening edge runner.

The sliding grooves are matched with the drawing plate, the sliding grooves can be two edge positions located on two sides of the opening, two sides of the drawing plate are respectively in sliding connection with the two sliding grooves, and the drawing plate is opened from the opening closing to the opening in the sliding process of the sliding grooves.

By adopting the mode of drawing the plate, the door plate 13 can be further and quickly opened and closed, so that the to-be-detected piece 201 can receive the environment with the preset temperature in a short time, the actual working condition of thermal runaway of the battery module can be more truly simulated, and the thermal insulation evaluation accuracy of the battery thermal insulation film is improved.

Referring to fig. 1 to 3, fig. 1 is a schematic view illustrating a structural state of a detection apparatus before testing a device under test according to some embodiments of the present application; fig. 2 is a schematic structural state diagram of a testing apparatus for testing a device under test according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a second component and a pressing component of a detection device according to an embodiment of the present application. The application provides a detection apparatus for carry out thermal-insulated aassessment to the thermal-insulated membrane of battery module, includes: a chamber 11 with an opening, a door panel 13, a heating element 12, a cell cold plate 21, a locking plate 22, and a pressure member 30. The door 13 is slidably connected to the opening of the chamber 11 to open and close the opening. The opening is located at the bottom of the chamber 11, the heating element 12 is arranged at the top of the chamber 11, and the driving rod of the pressing member 30 is directed from the bottom of the chamber 11 to the heating element 12. The lock plate 22 has a lock mechanism for locking the electric core cooling plate 21, and the lock plate 22 is provided on the drive plane of the end of the drive lever. In the test, the door 13 is closed, the heating element 12 is turned on, and the interior of the chamber 11 is heated to 600 ℃. Then, the door plate 13 is opened, the pressurizing part 30 is opened, the driving rod drives the locking plate 22 to approach the heating element 12, so that the heat insulation film in the cold environment on the cell cold plate 21 can be rapidly clamped between the heating element 12 and the cell cold plate 21, and 1-1.2 mpa pressure is applied. The real thermal runaway environment test of the heat insulation film in the battery module is realized.

The cooling pipeline 222 is arranged in the locking plate 22, after the heat insulation film test of one model is carried out, the cooling pipeline 222 of the locking plate 22 is connected through a cooling liquid circulating pipeline, the locking plate 22 is cooled rapidly, and the next heat insulation film test can be carried out rapidly. In the next heat insulation film test, the cooling liquid circulation pipeline and the cooling pipeline 222 of the locking plate 22 are separated.

In the technical scheme of this application embodiment, in the thermal-insulated evaluation test is carried out to the thermal-insulated membrane of battery module, from the further true environment that has simulated the thermal-insulated membrane thermal runaway under of battery module in four aspects, first aspect, battery module is in the thermal runaway back, and battery monomer can receive thermal expansion, extrudees thermal diaphragm, and this scheme is carrying out thermal-insulated evaluation test in, through applying pressure to the thermal-insulated membrane to the true environment that the thermal-insulated membrane pressurized has been simulated. In the second aspect, after the thermal runaway of the battery module, one side of the heat insulation film is in direct contact with a battery monomer in the thermal runaway. In the third aspect, after the battery module is out of control by heat, the heat insulation film another side is the battery monomer which is not out of control by heat directly, the heat insulation film of the scheme is in the heat insulation evaluation test, and the heat insulation film another side directly contacts and simulates the battery cell cold plate which is not out of control by heat, so that the real environment of the heat insulation film under pressure is simulated. In the fourth aspect, after the battery module is out of control due to heat, the temperature rise of the battery monomer is rapid, and compared with the fire disaster of the traditional building material, the temperature rise speed is obviously increased. The thermal-insulated membrane of this scheme is in thermal-insulated evaluation test, closes the door plant earlier, heats to predetermineeing the temperature in the cavity, then, opens the door plant, in the cavity that the pushing entering heating of thermal-insulated membrane was accomplished through pressure parts, can make thermal-insulated membrane realize by the quick entering thermal environment of predetermineeing the temperature of the cold environment of room temperature to the true environment of thermal-insulated membrane pressurized has been simulated.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein, but rather to cover all embodiments falling within the scope of the appended claims.

Claims (10)

1. The utility model provides a detection device for detect the thermal-insulated effect of piece that awaits measuring, its characterized in that includes:

the first component is used for heating the piece to be detected;

the second component is arranged on one side of the first component, and a test area of the piece to be tested is formed between the second component and the first component;

and the pressurizing component is arranged on one side of the piece to be tested, which is far away from the first component, and is used for applying pressure to the piece to be tested.

2. The detection apparatus according to claim 1,

the pushing end of the pressing component is used for driving the second component, so that the piece to be tested is clamped between the second component and the first component.

3. The detection apparatus according to claim 2,

the pressurizing component comprises a driving cylinder body and a push rod, and the second component is fixed at the end part of the push rod or placed at the end part of the push rod.

4. The detection apparatus according to any one of claims 1 to 3,

the second member includes: and (4) cooling the battery core.

5. The detection apparatus according to claim 4,

the second component further comprises: and the battery cell cold plate is locked on the locking mechanism of the locking plate.

6. The detection apparatus according to claim 5,

the locking mechanism is detachably arranged on the body of the locking plate.

7. The detection apparatus according to claim 5,

and a cooling pipeline is arranged in the locking plate.

8. The detection apparatus according to claim 4,

the second component further comprises: and the at least two temperature sensors are arranged on the cold surface of the electric core cold plate.

9. The detection apparatus according to any one of claims 1 to 3,

the first member includes: the heating element is arranged in the cavity, and the door plate can be arranged in the opening in a switching mode.

10. The detection apparatus according to claim 9,

the door plate is a drawing plate which is connected with the opening edge sliding groove in a sliding mode.

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