CN213956639U - Battery expansion force testing tool - Google Patents
Battery expansion force testing tool Download PDFInfo
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- CN213956639U CN213956639U CN202120310554.7U CN202120310554U CN213956639U CN 213956639 U CN213956639 U CN 213956639U CN 202120310554 U CN202120310554 U CN 202120310554U CN 213956639 U CN213956639 U CN 213956639U
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- 238000012360 testing method Methods 0.000 title claims abstract description 60
- 238000001816 cooling Methods 0.000 claims abstract description 63
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims description 20
- 125000003003 spiro group Chemical group 0.000 claims description 6
- 238000010998 test method Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000110 cooling liquid Substances 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000012928 buffer substance Substances 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
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- 230000008961 swelling Effects 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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Abstract
The utility model provides a battery expansibility test fixture, include: the battery pressure testing device comprises a first end plate, a second end plate, a movable plate and a connecting rod, wherein the first end plate is provided with a liquid cooling system, the second end plate is arranged on one side of the first end plate and is arranged at an interval with the first end plate, the movable plate is arranged between the first end plate and the second end plate, a testing space used for containing a battery is formed between the movable plate and the first end plate, a containing space used for containing the pressure testing device is formed between the movable plate and the second end plate, the connecting rod penetrates through the first end plate, the movable plate and the second end plate, two ends of the connecting rod are fixed on the first end plate and the second end plate respectively, and the movable plate can slide along the direction from the first end plate to the second end plate. The utility model discloses battery expansibility test fixture's first end plate is provided with the liquid cooling system, and the liquid cooling system can cool down to the battery in the expansibility test procedure to can promote the rate of accuracy of battery expansibility test result.
Description
Technical Field
The utility model relates to the technical field of vehicles, especially, relate to a battery expansibility test fixture.
Background
The battery expands during charging and discharging, and in order to ensure that the expansion of the battery is within a safe range, the charging and discharging process of the battery is usually tested.
However, when the conventional battery expansion force testing tool is used for testing the expansion force of the battery, the accuracy of a battery expansion test result is low due to overheating of the battery.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a battery expansibility test fixture, the main technical problem who solves is: the accuracy of the battery expansion force test result is improved.
In order to achieve the above object, an embodiment of the utility model provides a battery expansibility test fixture, include: first end plate, second end plate, fly leaf and connecting rod, first end plate is provided with the liquid cooling system, the second end plate set up in one side of first end plate and with first end plate separates, the fly leaf set up in first end plate with between the second end plate, the fly leaf with form the test space that is used for the holding battery between the first end plate, the fly leaf with form the accommodation space that is used for holding pressure measurement between the second end plate, the connecting rod passes first end plate the fly leaf with the second end plate, the both ends of connecting rod are fixed in respectively first end plate with the second end plate, just the fly leaf can along first end plate extremely the direction of second end plate slides.
In an embodiment of the present invention, the movable plate can slide along a direction from the second end plate to the first end plate.
The utility model discloses an embodiment, battery expansibility test fixture can also include: the middle end plate is attached to the surface, facing the first end plate, of the movable plate, and the middle end plate is provided with a liquid cooling system.
The utility model discloses an embodiment, battery expansibility test fixture can also include: the buffer layer is arranged in the test space between the movable plate and the first end plate, and when the battery expansion force test is carried out, the buffer layer is arranged between the adjacent batteries to separate the adjacent batteries.
In an embodiment of the present invention, the buffer layer is a foam layer.
In an embodiment of the present invention, the first end plate has a plurality of first hole sites, the middle end plate has a plurality of second hole sites, the movable plate has a plurality of third hole sites, the second end plate has a plurality of fourth hole sites, and the connecting rod passes through the first hole sites, the second hole sites, the third hole sites and the fourth hole sites respectively; wherein, first bolt certainly first end plate is from the back of the body one side of second end plate stretches into first hole site and spiro union in the first end of connecting rod, the second bolt certainly the second end plate is from the back of the body one side of first end plate stretches into fourth hole site and spiro union in the second end of connecting rod, just the nut joint of first bolt in first end plate is from the back of the body the surface of second end plate, the nut joint of second bolt in the second end plate is from the back of the body the surface of first end plate.
In an embodiment of the present invention, the liquid cooling system of the first end plate is disposed on the first end plate away from the surface of the middle end plate, and the liquid cooling system of the middle end plate is disposed on the surface of the first end plate away from the middle end plate.
In an embodiment of the present invention, a first groove is formed on a surface of the first end plate away from the middle end plate, a first liquid cooling pipe is fixed in the first groove, and two ends of the first liquid cooling pipe respectively extend out from an edge of the first end plate; the middle end plate deviates from the surface of the first end plate is provided with a second groove, a second liquid cooling pipe is fixed in the second groove, and two ends of the second liquid cooling pipe respectively extend out of the edge of the middle end plate.
In an embodiment of the present invention, the movable plate is perpendicular to the connecting rod, and the movable plate has a first end surface and a second end surface opposite to each other along a direction perpendicular to the connecting rod, the first end surface of the movable plate is recessed with at least one first notch, and the second end surface of the movable plate is recessed with at least one second notch; the movable plate is provided with at least one connecting rod on the first end face side, at least one connecting rod on the second end face side, the connecting rod on the first end face side is arranged in the first notch, and the connecting rod on the second end face side is arranged in the second notch, so that the movable plate can slide back and forth along the two connecting rods.
In an embodiment of the present invention, the pressure detection device is fixed to the surface of the second end plate facing the movable plate, or the pressure detection device is fixed to the surface of the movable plate facing the second end plate.
In one embodiment of the present invention, a portion of the connecting rod between the first end plate and the movable plate is retractable.
In an embodiment of the present invention, the first end plate, the middle end plate, the movable plate and the second end plate are rectangular plates, and the first end plate, the middle end plate, the movable plate and the second end plate have the same size.
In an embodiment of the present invention, the pressure detecting device is a pressure sensor.
The embodiment of the utility model provides a battery expansibility test fixture, wherein, the first end plate of battery expansibility test fixture is provided with the liquid cooling system, and the liquid cooling system can cool down to the battery in the expansibility test procedure to can promote the rate of accuracy of battery expansibility test result.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic view of a battery expansion force testing tool according to an embodiment of the present invention;
fig. 2 is a schematic view of a battery expansion force testing tool according to an embodiment of the present invention;
fig. 3 is a schematic view of a first end plate according to an embodiment of the present invention;
fig. 4 is a partial schematic view of a first angle of the battery expansion force testing tool according to the embodiment of the present invention;
fig. 5 is a partial schematic view of a second angle of the battery expansion force testing tool according to the embodiment of the present invention;
fig. 6 is a schematic diagram of two batteries connected in parallel according to an embodiment of the present invention;
fig. 7 is a schematic diagram of four batteries connected in series according to an embodiment of the present invention;
fig. 8 is a schematic view of the movable plate (first embodiment) in fig. 1 according to an embodiment of the present invention;
fig. 9 is a schematic view of a movable plate (second embodiment) according to an embodiment of the present invention.
Description of reference numerals:
100-battery expansion force testing tool, 10-first end plate, 110-liquid cooling system, 111-first groove, 112-first liquid cooling pipe, 120-first hole site, 20-second end plate, 210-fourth hole site, 30-movable plate, 301-third hole site, 310-first end surface, 311-first gap, 320-second end surface, 321-second gap, 40-connecting rod, 50-pressure detection device, 60-battery, 70-middle end plate, 710-second hole site, 721-second liquid cooling pipe, 811-first bolt, and 812-second bolt.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
In the case of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The embodiment of the utility model provides a battery expansibility test fixture, it is shown with reference to fig. 1-8 that battery expansibility test fixture 100 includes: the battery pressure testing device comprises a first end plate 10, a second end plate 20, a movable plate 30 and a connecting rod 40, wherein the first end plate 10 is provided with a liquid cooling system 110, the second end plate 20 is arranged on one side of the first end plate 10 and is arranged at an interval with the first end plate 10, the movable plate 30 is arranged between the first end plate 10 and the second end plate 20, a testing space for accommodating a battery is formed between the movable plate 30 and the first end plate 10, an accommodating space for accommodating a pressure testing device 50 is formed between the movable plate 30 and the second end plate 20, the connecting rod 40 penetrates through the first end plate 10, the movable plate 30 and the second end plate 20, two ends of the connecting rod 40 are respectively fixed on the first end plate 10 and the second end plate 20, and the movable plate 30 can slide along the direction from the first end plate 10 to the second end plate 20.
Specifically, the first end plate 10 is provided with the liquid cooling system 110, which may be a groove formed on the surface of the first end plate 10 facing the second end plate 20 and/or a surface of the first end plate 10 facing away from the second end plate 20, and a liquid cooling pipe containing cooling liquid is disposed in the groove, or a channel capable of being filled with cooling liquid is formed in the first end plate 10.
A test space for accommodating the battery is formed between the movable plate 30 and the first end plate 10, that is, the battery to be tested can be accommodated between the movable plate 30 and the first end plate 10; the movable plate 30 and the second end plate 20 in the above form a receiving space for receiving the pressure detection device 50, where the pressure detection device 50 may be fixed to the surface of the second end plate 20 facing the movable plate 30 as shown in fig. 4 or fig. 5, or the pressure detection device 50 may be fixed to the surface of the movable plate 30 facing the second end plate 20, where the pressure detection device 50 may be a pressure sensor; the pressure detection device 50 between the movable plate 30 and the second end plate 20 may be one or multiple, when the pressure detection device 50 is one, the manufacturing cost of the battery expansion force testing tool 100 is low, when the pressure detection device 50 is multiple, if one of the pressure detection devices fails, the other devices can work normally, and the pressure detection device can be set according to actual requirements during specific implementation.
The middle connecting rod 40 passes through the first end plate 10, the movable plate 30 and the second end plate 20, that is, the first end plate 10, the movable plate 30 and the second end plate 20 are respectively provided with hole sites, and the connecting rod 40 passes through the hole sites of the first end plate 10, the movable plate 30 and the second end plate 20; the two ends of the connecting rod 40 are fixed to the first end plate 10 and the second end plate 20, respectively, and the two ends of the connecting rod 40 may be fixed by bolts or other means, which is not limited herein.
In one embodiment, referring to fig. 1 and 2, two batteries 60 are electrically connected and disposed between the first end plate 10 and the movable plate 30, and then the two batteries 60 are charged/discharged, and the two batteries 60 expand and push the movable plate 30 to move along the connecting rod 40 toward the second end plate 20 after being charged/discharged, and the pressure detecting device 50 obtains an expansion force, during which the liquid cooling system 110 in the first end plate 10 cools the batteries 60. It should be noted that the first end plate 10, the second end plate 20 and the movable plate 30 in the present embodiment are all perpendicular to the connecting rod 40, but may not be perpendicular in the specific implementation, but are perpendicular hereinafter because they are more stable and have better appearance effect.
In this embodiment, the liquid cooling system in the first end plate can cool down the battery in the expansibility test procedure to can promote the rate of accuracy of expansibility test result.
It is understood that the plurality of cells 60 may be electrically connected in parallel by the aluminum rows as shown in fig. 6, or in series by the aluminum rows as shown in fig. 7.
In an embodiment of the present invention, the movable plate 30 can slide along the direction from the second end plate 20 to the first end plate 10, so that the initial position of the movable plate 30 can be adjusted according to the different battery quantities detected as required, and the battery expansion force test is convenient for the repeated use of the tool. Such as: during the first detection, two batteries 60 are placed between the first end plate 10 and the movable plate 30, and during the second detection, one battery 60 is placed between the first end plate 10 and the movable plate 30, and at this time, the movable plate 30 is moved by the thickness of one battery 60 along the connecting rod 40 toward the first end plate 10. It should be noted that, in this embodiment, the thickness of the second end plate 20 may be adjusted, so that after the movable plate 30 slides towards the first end plate 10, there is still no gap between the pressure detection device 50 and the movable plate 30, and of course, other manners may also be adopted to achieve that after the movable plate 30 slides towards the first end plate 10, there is still no gap between the pressure detection device 50 and the movable plate 30, which is not limited herein.
In an embodiment of the present invention, referring to fig. 1 or fig. 2, the battery expansion force testing tool 100 may further include: and the middle end plate 70, the middle end plate 70 is attached to the surface of the movable plate 30 facing the first end plate 10, and the middle end plate 70 is provided with a liquid cooling system.
Specifically, the middle end plate 70 is attached to the surface of the movable plate 30 facing the first end plate 10, in other words, the middle end plate 70 is fixed to the surface of the movable plate 30 facing the first end plate 10, where the middle end plate 70 and the movable plate 30 may be adhesively connected, or may be bolted, or may be in other manners, and this is not particularly limited herein; the intermediate end plate 70 in this embodiment is provided with a liquid cooling system, which may be in one or more of the following ways: in the first mode, the surface of the middle end plate 70 facing the first end plate 10 is provided with a groove, and a liquid cooling pipe containing cooling liquid is arranged in the groove; in the second mode, the surface of the middle end plate 70 facing the movable plate 30 is provided with a groove, and a liquid cooling pipe containing cooling liquid is arranged in the groove; in the third mode, a channel capable of being filled with cooling liquid is formed in the middle end plate 70.
The middle end plate in this embodiment is provided with the liquid cooling system, and this liquid cooling system makes the cooling effect of the battery between middle end plate and the first end plate better to can further promote the rate of accuracy of expansibility test result.
It should be noted that, since the middle end plate 70 is fixed to the movable plate 30, and the movable plate 30 can slide on the connecting rod 40 along the connecting line of the first end plate 10 and the second end plate 20, for this reason, the radial dimension of the connecting rod 40 is smaller than the dimension of the hole opened on the middle end plate 70, so that the middle end plate 70 can also slide along the connecting rod 40.
Because in the in-process of using, be provided with buffering material between battery and the battery usually, and buffering material can reduce the bulging force of battery, and for the bulging force condition of the battery when can be better acquireing concrete use to optimize the pretightning force of battery module/battery package structure, in an embodiment of the utility model, as shown in fig. 1 or fig. 2, battery bulging force test fixture 100 can also include: a buffer layer disposed in the test space between the movable plate 30 and the first end plate 10, the buffer layer being disposed between the adjacent cells 60 to separate them when the cell expansion force test is performed, for example: a plurality of cells 60 are arranged between the movable plate 30 and the first end plate 10 along a connecting line direction of the first end plate 10 and the second end plate 20, and a buffer layer is interposed between every two adjacent cells 60. Illustratively, the buffer layer is a foam layer, that is, the buffer layer is a layer structure made of foam material
Specifically, the buffer substance interposed between the adjacent two cells 60 can reduce the swelling force of the cells, such as: buffering material hardness height can lead to battery inflation space to receive great restriction, and the inside bulging force increase of battery is very fast, and buffering material thickness is too big or compression rebound rate is higher, can lead to battery inflation space too big again, and the bulging force is unrestricted, for this reason, increases the bulging force of the battery when the research concrete use that the buffer layer can be better between the battery to can optimize the pretightning force of battery module/battery package structure according to testing result.
Next, the sliding implementation of the movable plate is explained by two specific embodiments.
The first embodiment:
in an embodiment of the present invention, referring to fig. 1-5 and 8, the first end plate 10 has a plurality of first holes 120, the middle end plate 70 has a plurality of second holes 710, the movable plate 30 has a plurality of third holes 301, the second end plate 20 has a plurality of fourth holes 210, and the connecting rod 40 passes through the first holes 120, the second holes 710, the third holes 301 and the fourth holes 210 respectively; wherein, first bolt 811 stretches into first hole site 120 and spiro union in the first end of connecting rod 40 from one side that first end plate 10 deviates from second end plate 20, and second bolt 812 stretches into fourth hole site 210 and spiro union in the second end of connecting rod 40 from one side that second end plate 20 deviates from first end plate 10, and the nut joint of first bolt 811 deviates from the surface that second end plate 20 in first end plate 10, and the nut joint of second bolt 812 deviates from the surface that first end plate 10 in second end plate 20.
Specifically, the first end and the second end of the connecting rod 40 in the above are both ends of the connecting rod 40; the first bolt 811 extends into the first hole 120 from the side of the first end plate 10 away from the second end plate 20 and is screwed to the first end of the connecting rod 40, and the nut of the first bolt 811 is clamped to the surface of the first end plate 10 away from the second end plate 20, that is, the end surface of the connecting rod 40 away from the second end plate 20 is recessed with a threaded hole, the first bolt 811 extends into the first hole 120 and is screwed to the threaded hole, and after the screwing is completed, the nut on the first bolt 811 faces the surface of the second end plate 20 and is attached to the surface of the first end plate 10 away from the second end plate 20; the second bolt 812 extends into the fourth hole 210 from the side of the second end plate 20 departing from the first end plate 10 and is screwed to the second end of the connecting rod 40, and the nut of the second bolt 812 is fastened to the surface of the second end plate 20 departing from the first end plate 10, and here, reference may be made to the arrangement and connection manner of the first bolt, which is not described herein again.
In this embodiment, the connecting rods with different lengths can be replaced by disassembling the first bolt and/or the second bolt to measure the expansion force of the single or multiple batteries, and the first bolt and the second bolt can simulate the pretightening force of the battery pack structure frame to the batteries.
Of course, in order to measure the expansion force of a plurality of batteries through the same battery expansion force testing tool 100, it may be: the portion of the link 40 between the first end plate 10 and the movable plate 30 is retractable so that the distance between the first end plate 10 and the movable plate 30 can be adjusted to enable testing of different thicknesses/different numbers of battery expansions, and illustratively, the link 40 includes: the first sub-connecting rod and the second sub-connecting rod are sleeved on the first sub-connecting rod, a plurality of hole sites are formed in the first sub-connecting rod along the extension direction of the first sub-connecting rod, elastic protrusions are arranged on the outer wall of the second sub-connecting rod, the elastic protrusions of the second sub-connecting rod are clamped in different hole sites to achieve stretching of the connecting rod, one end, far away from the second sub-connecting rod, of the first sub-connecting rod is connected with the second end plate 20, one end, far away from the first sub-connecting rod, of the second sub-connecting rod is connected with the first end plate 10, and the length of the first sub-connecting rod is larger than the sum of thicknesses of the second end plate 20, the pressure detection device 50 and the movable plate 30.
Second embodiment:
in an embodiment of the present invention, referring to fig. 9, the movable plate 30 is perpendicular to the connecting rod 40, and the movable plate 30 has a first end surface 310 and a second end surface 320 opposite to each other along a direction perpendicular to the connecting rod 40, the first end surface 310 of the movable plate 30 is recessed with at least one first notch 311, and the second end surface 320 of the movable plate 30 is recessed with at least one second notch 321; the at least one connecting rod 40 is disposed on the first end surface 310 side of the movable plate 30, the at least one connecting rod 40 is disposed on the second end surface 320 side of the movable plate 30, the connecting rod 40 on the first end surface 310 side of the movable plate 30 is disposed in the first notch 311, and the connecting rod 40 on the second end surface 320 side of the movable plate 30 is disposed in the second notch 321, so that the movable plate 30 can slide back and forth along the two connecting rods. For example, referring to fig. 9, the movable plate 30 is opened with two first notches 311 and two second notches 321, and the battery expansion force testing tool 100 is provided with 4 connecting rods 40 parallel to each other, and each notch penetrates through one connecting rod 40, so as to realize the sliding of the movable plate 30.
Here, the sliding implementation manner of the movable plate may be the manner in the first embodiment, may also be the manner in the second embodiment, and may also be other manners, which is not specifically limited herein.
In one embodiment of the present invention, referring to fig. 1-3, the liquid cooling system 110 of the first end plate 10 is disposed on the surface of the first end plate 10 away from the middle end plate 70, and the liquid cooling system of the middle end plate 70 is disposed on the surface of the middle end plate 70 away from the first end plate 10, thereby ensuring the structural strength of the battery side of the first end plate and the battery side of the middle end plate.
In a specific embodiment of the present invention, referring to fig. 1-3, a first groove 111 is formed on a surface of the first end plate 10 away from the middle end plate 70, a first liquid cooling pipe 112 is fixed in the first groove 111, and two ends of the first liquid cooling pipe 112 respectively extend out from an edge of the first end plate 10; the surface of the middle end plate 70 departing from the first end plate 10 is provided with a second groove, a second liquid cooling tube 721 is fixed in the second groove, and two ends of the second liquid cooling tube 721 respectively extend out from the edge of the middle end plate 70.
Specifically, two ends of the first liquid-cooling tube 112 respectively extend out from the edge of the first end plate 10, one end of the first liquid-cooling tube is connected with the water inlet tube, and the other end of the first liquid-cooling tube is connected with the water outlet tube, so that the cooling liquid in the first liquid-cooling tube 112 can flow, and the cooling effect on the battery 60 is better; similarly, the two ends of the second liquid-cooling tube 721 extend out from the edge of the middle end plate 70, one end of the second liquid-cooling tube is connected to the water inlet tube, and the other end of the second liquid-cooling tube is connected to the water outlet tube, so that the cooling liquid in the second liquid-cooling tube 721 can flow, and the cooling effect on the battery 60 is better.
In an embodiment, the liquid cooling system 110 of the first end plate 10 and/or the liquid cooling system of the middle end plate 70 are of a pressure tube type water cooling plate structure, and here, taking the configuration of the liquid cooling system 110 of the first end plate 10 as an example, the middle end plate 70 refers to it, specifically: the surface of the first end plate 10 facing away from the intermediate end plate 70 is milled using Computer Numerical Control (CNC) to form a curved first groove 111 as described in fig. 1 or 3, and then a bent copper tube, which is a first liquid-cooled tube 112, is glued or welded into the first groove 111. The structure strength of the end plate is high by adopting the pressure pipe type water cooling plate structure, the processing is simple by adopting the CNC process, and meanwhile, the heat conductivity coefficient is high, the thermal resistance is small and the corrosion resistance is high by adopting the copper pipe made of red copper.
It is understood that, firstly, since the curved grooves make the temperature reduction more uniform, in practice, both the liquid cooling system 110 of the first end plate 10 and the liquid cooling system of the middle end plate 70 can be configured as curved grooves; secondly, the liquid cooling system 110 of the first end plate 10 and the liquid cooling system of the middle end plate 70 can also adopt a cavity type water cooling plate or a friction welding type water cooling plate, then CNC milling or drilling is adopted, a cover plate or a plug is additionally arranged for sealing, and then CNC machining is carried out.
In an embodiment of the present invention, referring to fig. 1-3, the first end plate 10, the middle end plate 70, the movable plate 30, and the second end plate 20 are rectangular plates, and the first end plate 10, the middle end plate 70, the movable plate 30, and the second end plate 20 have the same size, so as to improve the aesthetic property of the battery expansibility test tool.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In addition, in the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In addition, in the present invention, unless otherwise explicitly specified or limited, the terms "connected", and the like are to be construed broadly, and may be, for example, a mechanical connection or an electrical connection; the term "connected" refers to a direct connection or an indirect connection through an intermediate medium, and refers to a connection between two elements or an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present invention is understood by those skilled in the art according to specific situations.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled 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 invention.
Claims (10)
1. The utility model provides a battery expansibility test fixture which characterized in that includes:
the first end plate is provided with a liquid cooling system;
the second end plate is arranged on one side of the first end plate and is arranged at an interval with the first end plate;
the movable plate is arranged between the first end plate and the second end plate, a test space for accommodating a battery is formed between the movable plate and the first end plate, and an accommodating space for accommodating a pressure detection device is formed between the movable plate and the second end plate;
the connecting rod penetrates through the first end plate, the movable plate and the second end plate, two ends of the connecting rod are fixed to the first end plate and the second end plate respectively, and the movable plate can slide along the direction from the first end plate to the second end plate.
2. The tool for testing battery expansion force according to claim 1,
the movable plate is slidable in a direction from the second end plate to the first end plate.
3. The battery expansion force testing tool according to claim 2, further comprising:
the middle end plate is attached to the surface, facing the first end plate, of the movable plate, and the middle end plate is provided with a liquid cooling system.
4. The battery expansion force testing tool according to claim 3, further comprising:
the buffer layer is arranged in the test space between the movable plate and the first end plate, and when the battery expansion force test is carried out, the buffer layer is arranged between the adjacent batteries to separate the adjacent batteries.
5. The tool for testing battery expansion force according to claim 3 or 4,
the first end plate is provided with a plurality of first hole sites, the middle end plate is provided with a plurality of second hole sites, the movable plate is provided with a plurality of third hole sites, the second end plate is provided with a plurality of fourth hole sites, and the connecting rod respectively penetrates through the first hole sites, the second hole sites, the third hole sites and the fourth hole sites;
wherein, first bolt certainly first end plate is from the back of the body one side of second end plate stretches into first hole site and spiro union in the first end of connecting rod, the second bolt certainly the second end plate is from the back of the body one side of first end plate stretches into fourth hole site and spiro union in the second end of connecting rod, just the nut joint of first bolt in first end plate is from the back of the body the surface of second end plate, the nut joint of second bolt in the second end plate is from the back of the body the surface of first end plate.
6. The tool for testing expansion force of battery according to claim 3,
the liquid cooling system of the first end plate is arranged on the first end plate back to the surface of the middle end plate, and the liquid cooling system of the middle end plate is arranged on the surface of the middle end plate back to the first end plate.
7. The tool for testing expansion force of battery according to claim 6,
a first groove is formed in the surface, away from the middle end plate, of the first end plate, a first liquid cooling pipe is fixed in the first groove, and two ends of the first liquid cooling pipe extend out of the edge of the first end plate respectively;
the middle end plate deviates from the surface of the first end plate is provided with a second groove, a second liquid cooling pipe is fixed in the second groove, and two ends of the second liquid cooling pipe respectively extend out of the edge of the middle end plate.
8. The tool for testing expansion force of battery according to any one of claims 2-4,
the movable plate is perpendicular to the connecting rod, the movable plate is provided with a first end face and a second end face which are opposite to each other along the direction perpendicular to the connecting rod, the first end face of the movable plate is sunken to form at least one first notch, and the second end face of the movable plate is sunken to form at least one second notch;
the movable plate is provided with at least one connecting rod on the first end face side, at least one connecting rod on the second end face side, the connecting rod on the first end face side is arranged in the first notch, and the connecting rod on the second end face side is arranged in the second notch, so that the movable plate can slide back and forth along the two connecting rods.
9. The tool for testing battery expansion force according to claim 1,
the pressure detection device is fixed on the surface of the second end plate facing the movable plate, or the pressure detection device is fixed on the surface of the movable plate facing the second end plate.
10. The tool for testing battery expansion force according to claim 1,
the portion of the connecting rod between the first end plate and the movable plate is telescopic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120310554.7U CN213956639U (en) | 2021-02-03 | 2021-02-03 | Battery expansion force testing tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120310554.7U CN213956639U (en) | 2021-02-03 | 2021-02-03 | Battery expansion force testing tool |
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| CN213956639U true CN213956639U (en) | 2021-08-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137425A (en) * | 2021-10-21 | 2022-03-04 | 河南德力新能源汽车有限公司 | Method for testing optimal reserved gap of lithium ion battery |
| CN114440754A (en) * | 2021-08-23 | 2022-05-06 | 北京卫蓝新能源科技有限公司 | Device and method for testing swelling capacity of multiple batteries under different pressures |
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2021
- 2021-02-03 CN CN202120310554.7U patent/CN213956639U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440754A (en) * | 2021-08-23 | 2022-05-06 | 北京卫蓝新能源科技有限公司 | Device and method for testing swelling capacity of multiple batteries under different pressures |
| CN114440754B (en) * | 2021-08-23 | 2024-04-05 | 北京卫蓝新能源科技有限公司 | Device and method capable of testing expansion amounts of multiple batteries under different pressures |
| CN114137425A (en) * | 2021-10-21 | 2022-03-04 | 河南德力新能源汽车有限公司 | Method for testing optimal reserved gap of lithium ion battery |
| CN114137425B (en) * | 2021-10-21 | 2024-04-16 | 德力新能源汽车有限公司 | Method for testing optimal reserved gap of lithium ion battery |
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