CN218470926U

CN218470926U - Temperature rise detection test box

Info

Publication number: CN218470926U
Application number: CN202222444334.0U
Authority: CN
Inventors: 王晗; 刘豪; 吴慧颖; 王娇
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-02-10
Anticipated expiration: 2032-09-15

Abstract

The utility model belongs to the technical field of electric core detects, a temperature rise detection test case is disclosed. The test box comprises a box body, a fixing plate, a clamping plate and at least two supporting components. A test space is arranged in the box body, an electric wire through hole for penetrating an electric wire is formed in the side wall of the box body, the fixing plate is fixedly arranged in the test space, and the at least two supporting assemblies are arranged in a second direction which is vertical to the first direction; the supporting component comprises a supporting piece, a first locking piece and a second locking piece, one end of the supporting piece penetrates through the fixing plate to be in threaded connection with the first locking piece, and the other end of the supporting piece penetrates through the clamping plate to be in threaded connection with the second locking piece. The box provides a windless environment, has constituteed a platform that is used for placing electric core through fixed plate, clamp plate and two at least supporting component to make the clamp plate be close to the fixed plate through revolving the second retaining member soon, press from both sides tight electric core and so reach and exert pressure to electric core, realize the pressure that simulation electric core received when the module assembly.

Description

Temperature rise detection test box

Technical Field

The utility model relates to an electricity core detects technical field, especially relates to a temperature rise detection test case.

Background

At present, a lithium battery core needs to be subjected to a temperature rise test before being delivered to a customer, and the temperature rise test needs to be carried out in a windless environment so as to determine whether the discharge temperature rise of the battery core can meet the customer requirements in the windless environment. The test needs to be carried out in a blast thermostat, and meanwhile, a windless environment is arranged around the battery core.

At present mainly be at incubator both sides business turn over wind gap increase cardboard keep out the wind, avoid the incubator blast air to blow directly electric core surface and test.

However, in the test environment provided by the method, air flow still exists in the incubator, and the heat generated on the charging and discharging surfaces of the battery cell can be still taken away by the flowing air, so that the actually measured temperature rise of the battery cell is obviously lower than that of the battery cell in the actual windless environment. Therefore, a reliable windless detection environment cannot be provided for the experiment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a temperature rise test box can provide a windless measuring environment for the temperature rise is experimental to can carry out temperature rise test to the electric core of different specifications.

To achieve the purpose, the utility model adopts the following technical proposal:

this temperature rise detection test case includes:

the testing device comprises a box body, a testing device and a testing device, wherein a testing space is arranged inside the box body, and an electric wire through hole for penetrating an electric wire is formed in the side wall of the box body;

the fixed plate is fixedly arranged in the test space;

the clamping plate is slidably arranged in the test space along a first direction and is arranged at intervals with the fixing plate;

the at least two support assemblies are arranged in a second direction, and the second direction is perpendicular to the first direction; the supporting component comprises a supporting piece, a first locking piece and a second locking piece, one end of the supporting piece penetrates through the fixing plate and the first locking piece in threaded connection, and the other end of the supporting piece penetrates through the clamping plate and the second locking piece in threaded connection.

Optionally, the fixing plate is provided with first adjusting long holes corresponding to the supporting members of the at least two supporting assemblies, the first adjusting long holes extend along a third direction, the third direction is perpendicular to the first direction and the second direction in pairs, and one end of each supporting member penetrates through the first adjusting long hole and can slide along the first adjusting long hole;

the clamping plate is provided with at least two second adjusting long holes which are correspondingly arranged on the supporting pieces of the supporting component, the second adjusting long holes extend along the third direction, and the other ends of the supporting pieces penetrate through the second adjusting long holes and can slide along the second adjusting long holes.

Optionally, the first adjusting long hole is a U-shaped hole with one open end;

the second adjusting long hole is a U-shaped hole with one open end.

Optionally, a supporting member is disposed between the supporting members of the at least two supporting assemblies, and a width of the supporting member is smaller than a width of a product to be tested clamped between the clamping plate and the fixing plate along the first direction.

Optionally, the support member is slidably connected to the support member.

Optionally, a pressure detection member is disposed on the fixing plate and/or the clamping plate.

Optionally, a plurality of elastic members are further arranged between the fixing plate and the clamping plate, and the elastic members are configured to enable the clamping plate to always have a movement tendency away from the fixing plate.

Optionally, the temperature rise detection test box further comprises a sealing sleeve, and the sealing sleeve is arranged in the electric wire through hole and sleeved on the outer side of the electric wire.

Optionally, the box body comprises a lower box body and a box cover, the box cover is detachably connected with the box body, and the test space is formed between the box cover and the box body.

Optionally, a sealing member is provided between the box cover and the box body.

The beneficial effects of the utility model reside in that:

the utility model provides a temperature rise test box provides a windless measuring environment through adopting the box to the temperature rise experiment to through fixed plate, pinch-off blades and two at least supporting components, constitute a platform that is used for placing electric core, supporting component still includes support piece, puts electric core on support piece, and adjusts the distance between pinch-off blades and the fixed plate through revolving the second retaining member soon, realizes pressing from both sides tightly the clamp of the electric core of different specifications.

Drawings

Fig. 1 is a preview of the exterior of the test chamber of the present invention;

figure 2 is a top view of the interior of the test chamber of the present invention;

fig. 3 is a schematic diagram of the internal structure of the test chamber of the present invention;

fig. 4 is a schematic view of the fixing plate of the present invention.

In the figure:

1. a box body; 11. a wire through hole; 12. a lower box body; 13. a box cover;

2. a fixing plate; 21. a first adjustment long hole;

3. a clamping plate; 31. a second adjustment long hole;

4. a support assembly; 41. a support member; 42. a first locking member; 43. a second locking member;

5. a pressure detection member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

In order to provide a windless testing environment and adapt to the experimental condition of the electric core of different specifications for the temperature rise test, this embodiment provides a temperature rise test case.

As shown in fig. 1 to 4, the temperature rise detection test chamber includes a chamber body 1, a fixing plate 2, a clamping plate 3, and at least two support members 4. A test space is arranged in the box body 1, and a wire through hole 11 for penetrating a wire is formed in the side wall of the box body 1; the fixed plate 2 is fixedly arranged in the test space; the clamping plate 3 is slidably arranged in the test space along a first direction and is arranged at intervals with the fixing plate 2; the at least two supporting components 4 are arranged along a second direction, and the second direction is vertical to the first direction; the support member 4 includes a support member 41, a first locking member 42 and a second locking member 43, and one end of the support member 41 is threaded through the fixing plate 2 to be connected to the first locking member 42 and the other end is threaded through the clamping plate 3 to be connected to the second locking member 43. Wherein except that electric wire through-hole 11 does not exist remaining and external communicating structure on box 1, the aperture of electric wire through-hole 11 can slightly be lighter than the diameter of electric wire, and when the electric wire passed electric wire through-hole 11 and was connected with inside electric core, the electric wire can be blocked up electric wire through-hole 11, makes the test space completely isolated with external, provides a windless detection environment for the temperature rise is experimental. Also, in the present embodiment, the first locking member 42 and the second locking member 43 employ nuts, and the support member 41 employs screws. Set up two screw rods through the interval between fixed plate 2 and clamp plate 3, thereby a supporting platform for placing electric core has been built, and two screw rods are unsettled and erect between fixed plate 2 and clamp plate 3, when making electric core put on supporting platform, the part that electric core was sheltered from has been reduced as far as, make the temperature rise condition of each part of electric core the as far as the same as possible when the temperature rise is experimental, can not lead to the unable heat dissipation to lead to the temperature rising speed to be faster than other parts that do not shelter from because of wherein one side is sheltered from, consequently, the temperature rise test result that obtains is more accurate. Then through revolving the second retaining member 43 who is located the clamp plate 3 and keeps away from fixed plate 2 one side to adjust the distance between clamp plate 3 and the fixed plate 2, thereby press from both sides tightly the electric core of different thickness, thereby test the going on of different specification electric cores. In addition, the clamp plate 3 moves along the first direction, leans on gradually to fixed plate 2, presss from both sides tight electric core, can also simulate the pressure that electric core received when the module assembly. In addition, in this embodiment, only one cell is detected at a time, so as to avoid mutual interference of multiple cells and influence on a test result.

Optionally, as shown in fig. 2 to 3, the fixing plate 2 is provided with first adjusting long holes 21 corresponding to the supporting members 41 of the at least two supporting assemblies 4, the first adjusting long holes 21 extend along a third direction, the third direction is perpendicular to the first direction and the second direction, and one end of each supporting member 41 penetrates through the first adjusting long hole 21 and can slide along the first adjusting long hole 21; the clamping plate 3 is provided with a second adjusting long hole 31 corresponding to the first adjusting long hole 21, the second adjusting long hole 31 extends along the third direction, and the other end of the supporting piece 41 penetrates through the second adjusting long hole 31 and can slide along the second adjusting long hole 31. Through setting up first regulation slot hole 21 and second regulation slot hole 31 to adjust the height of support piece 41 according to different electric cores, in order to adapt to the electric core of different specifications.

In this embodiment, the first adjustment long hole 21 is a U-shaped hole with one open end, and the second adjustment long hole 31 is also a U-shaped hole with one open end. So that the support member 41 can be easily put into the first adjustment long hole 21 and the second adjustment long hole 31 through the open ends. When the height of the supporting piece 41 needs to be adjusted according to the height of the battery cell, the first locking piece 42 and the second locking piece 43 are screwed anticlockwise firstly, so that the supporting piece 41 between the fixing plate 2 and the clamping plate 3 is in an active state, then the supporting piece 41 slides downwards in the first adjusting long hole 21 and the second adjusting long hole 31 along the third direction according to the height of the battery cell, a position suitable for the height of the battery cell is found, after the position is adjusted, the first locking piece 42 and the second locking piece 43 are screwed clockwise, the supporting plate is fixed between the supporting plate and the clamping plate 3 again, and the height adjustment is completed.

Optionally, a supporting member is disposed between the supporting members 41 of the at least two supporting assemblies 4, and a width of the supporting member along the first direction is smaller than a width of the product to be tested clamped between the clamping plate 3 and the fixing plate 2. Through addding the support, increase the area of contact of support and electric core to increase the stability that supports electric core, seted up a plurality of ventilation holes simultaneously on the support, so that guarantee the heat dissipation of support and electric core contact surface.

Optionally, the support is slidably connected to the support 41. So that the supporting member can slide on the supporting member 41 together with the battery cell to perform position adjustment. In this embodiment, the supporting member is a supporting plate, a through hole is formed on the supporting plate, and the supporting member 41 passes through the through hole, so that the supporting plate can slide along the supporting member 41.

In the present embodiment, the clamping plate 3 is provided with a pressure detection member 5. When the clamping plate 3 is used for clamping the battery cell, the clamping force at the moment is measured by the pressure detection piece 5 on the clamping plate 3, and when the pressure of the battery cell module in an assembly state needs to be simulated, the clamping force of the clamping plate 3 on the battery cell only needs to be adjusted. And when the temperature rise test is started, the change of the expansion force when the battery cell expands due to temperature rise can be detected through the pressure detection piece 5, and the pressure detection piece 5 can be a pressure sensor. In other embodiments, the pressure detection element 5 may be fixed to the fastening plate 2 or, for detecting more data, one pressure detection element 5 may be provided on each of the fastening plate 2 and the clamping plate 3.

Optionally, several elastic members are further provided between the fixed plate 2 and the clamping plate 3, the elastic members being configured to cause the clamping plate 3 to always have a tendency to move away from the fixed plate 2. In this embodiment, the elastic component is the spring, and one end is connected with fixed plate 2, and the other end is connected with clamping plate 3, and the spring is compressed when clamping plate 3 presss from both sides tight electric core, when needs loosen electric core, revolves anticlockwise the second retaining member 43 of revolving, along with second retaining member 43 constantly moves towards the direction of keeping away from fixed plate 2, and clamping plate 3 also can be along with second retaining member 43 moves together under spring force's promotion to the automatic re-setting of clamping plate 3 has been realized.

Optionally, the temperature rise detection test box further comprises a sealing sleeve, the sealing sleeve is arranged in the electric wire through hole 11 and sleeved on the outer side of the electric wire, and the sealing effect between the electric wire and the electric wire through hole 11 is enhanced. In order to better enhance the sealing effect, the sealing sleeve can be made of rubber or nylon materials.

Optionally, the box body 1 comprises a lower box body 12 and a box cover 13, the box cover 13 is detachably connected with the box body 1, and a test space is formed between the box cover 13 and the box body 1. Through setting up the case lid 13 that can open and shut, the access of electric core is convenient for.

Optionally, a seal is provided between the lid 13 and the housing 1. Thereby increasing the sealing performance between the box cover 13 and the box body 1 and ensuring the windless state in the test space. The sealing element is a sealing strip which is adhered to the inner wall of the box cover 13, and when the box cover 13 is closed with the box body 1, the sealing strip is clamped between the box cover 13 and the box body 1, so that the sealing between the box cover 13 and the box body 1 is ensured.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Temperature rise detection test case, its characterized in that, temperature rise detection test case includes:

the test device comprises a box body (1), wherein a test space is arranged in the box body (1), and a wire through hole (11) for penetrating a wire is formed in the side wall of the box body (1);

the fixing plate (2) is fixedly arranged in the test space;

the clamping plate (3) is slidably arranged in the test space along a first direction and is arranged at an interval with the fixing plate (2);

at least two supporting components (4), wherein the at least two supporting components (4) are arranged in a second direction, and the second direction is perpendicular to the first direction; the supporting component (4) comprises a supporting piece (41), a first locking piece (42) and a second locking piece (43), one end of the supporting piece (41) penetrates through the fixing plate (2) and the first locking piece (42) in threaded connection, and the other end of the supporting piece penetrates through the clamping plate (3) and the second locking piece (43) in threaded connection.

2. The temperature rise detection test box according to claim 1, wherein the fixing plate (2) is provided with a first adjustment long hole (21) corresponding to the support member (41) of at least two of the support assemblies (4), the first adjustment long hole (21) extends along a third direction, the third direction is perpendicular to the first direction and the second direction in pairs, and one end of the support member (41) is inserted into the first adjustment long hole (21) and can slide along the first adjustment long hole (21);

the clamp plate (3) is provided with at least two support assembly (4) support piece (41) correspond second regulation slot hole (31) that sets up, second regulation slot hole (31) are followed the third direction extends, the other end of support piece (41) is worn to locate in second regulation slot hole (31), and can follow second regulation slot hole (31) slide.

3. The temperature-rise detection test chamber according to claim 2, wherein the first adjustment long hole (21) is a U-shaped hole with one end open;

the second adjusting long hole (31) is a U-shaped hole with one open end.

4. The temperature rise detection test box according to claim 1, wherein a support member is arranged between the support members (41) of at least two of the support assemblies (4), and the width of the support member along the first direction is smaller than the width of a product to be tested clamped between the clamping plate (3) and the fixing plate (2).

5. Test chamber for the detection of the temperature rise according to claim 4, characterized in that said support is slidingly associated with said support element (41).

6. Temperature rise detection test chamber according to claim 1, characterized in that a pressure detection element (5) is provided on the fixing plate (2) and/or the clamping plate (3).

7. Temperature rise detection test chamber according to claim 1, characterized in that a plurality of elastic elements are further provided between the fixed plate (2) and the clamping plate (3), the elastic elements being configured to cause the clamping plate (3) to have a tendency to move away from the fixed plate (2) at all times.

8. The temperature rise detection test box according to claim 1, further comprising a sealing sleeve, wherein the sealing sleeve is arranged in the wire through hole (11) and sleeved outside the wire.

9. Temperature rise detection test chamber according to claim 1, characterized in that the chamber body (1) comprises a lower chamber body (12) and a chamber cover (13), the chamber cover (13) is detachably connected with the chamber body (1), and the test space is formed between the chamber cover (13) and the chamber body (1).

10. Temperature rise detection test chamber according to claim 9, characterized in that a seal is provided between the chamber lid (13) and the chamber body (1).