Wind shielding box and environment simulation bin

Abstract

The utility model relates to the technical field of lithium battery production, in particular to a wind shielding box and an environment simulation bin, the wind shielding box comprises a top cover, two end plates and two side plates, the two end plates are detachably connected with the two opposite ends of the top cover respectively, the two side plates are detachably connected with the two opposite sides of the top cover respectively, and the two side plates are detachably connected with the two opposite sides of the top cover respectively. The two opposite ends of each side plate are detachably connected with one ends of the two end plates respectively. When a single battery cell, multiple battery cells, a single module, multiple modules, a single battery pack or multiple battery packs to be tested are subjected to low-temperature standing performance testing in the environment simulation bin, the wind shielding box can be arranged above the to-be-tested piece in a covering mode, so that the cold air blocking effect is achieved, and the influence of cold air on the testing result is reduced. After the test is completed, the top cover, the end plates and the side plates can be detached from one another, so that the space occupied by the wind shielding box when the wind shielding box is idle is effectively reduced, and the wind shielding box is greatly convenient to store.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, and in particular to a windshield box and an environmental simulation chamber. Background Art

[0002] When designing lithium-ion batteries, thermal performance simulation and thermal performance testing are two important reference indicators to verify whether the design is reasonable. Usually, when the battery pack is subjected to a low-temperature static performance test, the battery pack is placed in an environmental simulation chamber, and the time taken for the battery pack to drop from room temperature to -20°C is recorded, and the temperature change during the cooling process is recorded. The temperature in the environmental simulation chamber is -20°C, which is used to simulate a low-temperature environment. In the industry, the conventional operation to maintain the temperature in the environmental simulation chamber at around -20°C is to continuously blow cold air into the environmental simulation chamber. However, the low-temperature static performance test needs to be completed in a windless state to reduce the impact of cold air on the test results. Therefore, when conducting a low-temperature static performance test on the battery pack in the environmental simulation chamber, a wind shield needs to be installed above the battery pack.

[0003] At present, the traditional windshield box takes up a large space when idle and is not convenient for storage. Utility Model Content

[0004] In order to solve the problem that the traditional windshield box occupies a large space when idle and is inconvenient to store, the utility model provides a windshield box and an environmental simulation chamber.

[0005] A windshield box provided to achieve the purpose of the utility model comprises:

[0006] Top cover;

[0007] There are two end plates, which are detachably connected to opposite ends of the top cover;

[0008] There are two side panels, which are detachably connected to opposite sides of the top cover respectively; the opposite ends of each side panel are detachably connected to one end of the two end panels respectively.

[0009] In some specific embodiments, the two end plates are respectively plugged into the opposite ends of the top cover; the two side plates are respectively plugged into the opposite sides of the top cover; and the opposite ends of each side plate are respectively plugged into one end of the two end plates.

[0010] In some specific embodiments, the first plugging holes or first plugging protrusions are respectively provided at opposite ends of the top cover, and correspondingly, each end plate is provided with a first plugging protrusion or a first plugging hole;

[0011] The top cover is provided with second plugging holes or second plugging protrusions on opposite sides, and correspondingly, each side plate is provided with a second plugging protrusion or a second plugging hole;

[0012] The opposite ends of each side plate are respectively provided with a third plugging hole or a third plugging protrusion, and correspondingly, the opposite ends of each end plate are respectively provided with a third plugging protrusion or a third plugging hole.

[0013] In some specific embodiments, the opposite ends of the top cover are respectively provided with multiple rows and columns of first plug-in holes or a row and columns of first plug-in protrusions, and correspondingly, each end plate is provided with a row and columns of first plug-in protrusions or multiple rows and columns of first plug-in holes.

[0014] In some specific embodiments, multiple rows and columns of second plugging holes or multiple rows and columns of second plugging protrusions are respectively provided on opposite sides of the top cover, and correspondingly, multiple rows and columns of second plugging protrusions or multiple rows and columns of second plugging holes are provided on each side panel.

[0015] In some specific embodiments, each side panel has multiple rows and columns of third plug holes or a third plug protrusion at two opposite ends, and correspondingly, each end panel has multiple rows and columns of third plug holes at two opposite ends.

[0016] In some specific embodiments, it also includes:

[0017] The first sealing structure is installed at the insertion position between the first plugging protrusion and the first plugging hole, the insertion position between the second plugging protrusion and the second plugging hole, and the insertion position between the third plugging protrusion and the third plugging hole.

[0018] In some specific embodiments, it also includes:

[0019] The second sealing structure is installed at the first plugging hole, the second plugging hole and the third plugging hole.

[0020] In some specific embodiments, the top cover, each end panel, and each side panel are made of wood, plastic, or metal.

[0021] An environmental simulation chamber based on the same concept is provided with a windshield provided by any of the above specific embodiments in the environmental simulation chamber; and the windshield cover is arranged outside the test piece.

[0022] Beneficial effects of the utility model: The windshield box of the utility model is provided with a top cover, two end plates and two side plates, the two end plates are detachably connected to the opposite ends of the top cover respectively, the two side plates are detachably connected to the opposite sides of the top cover respectively, and the opposite ends of each side plate are detachably connected to one end of the two end plates respectively. When a single battery cell, multiple battery cells, a single module, multiple modules, a single battery pack or multiple battery packs are waiting to be tested for low-temperature static performance testing in an environmental simulation chamber, the windshield cover can be set above the test piece to block cold wind and reduce the impact of cold wind on the test results. After the test is completed, the top cover, the end plates and the side plates can be detached from each other, thus effectively reducing the space occupied by the windshield box when it is idle, greatly facilitating the storage of the windshield box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of some specific embodiments of a windshield box of the utility model;

[0024] Figure 2 yes Figure 1 The schematic structural diagrams of some specific embodiments of the top cover in the windshield shown;

[0025] Figure 3 yes Figure 1 The structural schematic diagrams of some specific embodiments of the windshield middle end plate shown;

[0026] Figure 4 yes Figure 1 The structural schematic diagrams of some specific embodiments of the side panels of the windshield shown;

[0027] Figure 5 yes Figure 1 The structural schematic diagram of the windshield box shown is in another use state;

[0028] Figure 6 yes Figure 1 The structure schematic diagram of the windshield box shown is in another use state;

[0029] Figure 7 This is a schematic diagram of the battery pack undergoing low-temperature static performance testing.

[0030] In the accompanying drawings, 100, wind shield box; 110, top cover; 111, first plug-in hole; 112, second plug-in protrusion; 120, end plate; 121, first plug-in protrusion; 122, third plug-in protrusion; 130, side plate; 131, second plug-in hole; 132, third plug-in hole; 200, environmental simulation chamber; 300, battery pack. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axis", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "join", "hinge" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] As described in the background technology, the low-temperature static performance test of the battery pack needs to be completed in a windless state to reduce the impact of cold wind on the test results. Therefore, when the low-temperature static performance test of the battery pack is carried out in the environmental simulation chamber, a wind shield needs to be installed above the battery pack. At present, the traditional wind shield takes up a large space when idle and is not convenient for storage.

[0037] It should be noted that the top cover, each end plate and each side plate are all square structures. The opposite ends of the top cover, each end plate and each side plate refer to the two sides of the top cover, each end plate and each side plate in the body length direction. The opposite sides of the top cover, each end plate and each side plate refer to the two sides of the top cover, each end plate and each side plate in the body width direction.

[0038] To improve the above problems, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , a windshield box 100 is provided, comprising a top cover 110, two end plates 120 and two side plates 130. The two end plates 120 are detachably connected to the opposite ends of the top cover 110, respectively. The two side plates 130 are detachably connected to the opposite sides of the top cover 110, respectively. The opposite ends of each side plate 130 are detachably connected to one end of the two end plates 120, respectively. When a single battery cell, multiple battery cells, a single module, multiple modules, a single battery pack 300 or multiple battery packs 300 are waiting for the test piece to be tested in the environmental simulation chamber 200 for low-temperature static performance testing, the windshield box 100 can be covered above the test piece to block the cold wind and reduce the impact of the cold wind on the test results. After the test is completed, the top cover 110, the end plate 120 and the side plate 130 can be detached from each other, so that the space occupied by the windshield box 100 when idle is effectively reduced, which greatly facilitates the storage of the windshield box 100.

[0039] In some embodiments, the two end plates 120 are respectively plugged into the opposite ends of the top cover 110. The two side plates 130 are respectively plugged into the opposite sides of the top cover 110. The opposite ends of each side plate 130 are respectively plugged into one end of the two end plates 120. In this way, the windshield box 100 is convenient for disassembly, storage, and assembly.

[0040] In other embodiments, the two end panels 120 are respectively bonded to the opposite ends of the top cover 110 by using adhesive tape or adhesive strips. The two side panels 130 are respectively bonded to the opposite sides of the top cover 110 by using adhesive tape or adhesive strips. The opposite ends of each side panel 130 are respectively bonded to one end of the two end panels 120 by using adhesive tape or adhesive strips.

[0041] In some other embodiments, the two end plates 120 are respectively screwed, connected by buckles, or connected by hinges to the opposite ends of the top cover 110. The two side plates 130 are respectively screwed, connected by buckles, or connected by hinges to the opposite sides of the top cover 110. The opposite ends of each side plate 130 are respectively screwed, connected by buckles, or connected by hinges to one end of the two end plates 120.

[0042] When the top cover 110, the end plate 120 and the side plate 130 are connected by plugging, there are several specific implementations as follows:

[0043] Example 1

[0044] First plugging holes 111 are respectively provided at opposite ends of the top cover 110 , and correspondingly, a first plugging protrusion 121 is provided on each end plate 120 .

[0045] Example 2

[0046] First plugging protrusions 121 are respectively provided at opposite ends of the top cover 110 , and correspondingly, a first plugging hole 111 is provided on each end plate 120 .

[0047] Example 3

[0048] Second plugging holes 131 are respectively provided on opposite sides of the top cover 110 , and correspondingly, a second plugging protrusion 112 is provided on each side plate 130 .

[0049] Example 4

[0050] Second plugging protrusions 112 are respectively provided on opposite sides of the top cover 110 , and correspondingly, a second plugging hole 131 is provided on each side plate 130 .

[0051] Example 5

[0052] The third plugging holes 132 are respectively disposed at two opposite ends of each side plate 130 , and correspondingly, the third plugging protrusions 122 are respectively disposed at two opposite ends of each end plate 120 .

[0053] Example 6

[0054] The third plugging protrusions 122 are respectively disposed at the opposite ends of each side plate 130 , and correspondingly, the third plugging holes 132 are respectively disposed at the opposite ends of each end plate 120 .

[0055] In order to make the size of the windshield box 100 adjustable according to the number and size of the test pieces and make the windshield box 100 more adaptable, there are several specific implementations as follows:

[0056] Example 7

[0057] A plurality of rows and columns of first plugging holes 111 are respectively disposed at opposite ends of the top cover 110 , and correspondingly, a plurality of rows and columns of first plugging protrusions 121 are disposed on each end plate 120 .

[0058] Example 8

[0059] A row of multiple columns of first plugging protrusions 121 are respectively disposed at opposite ends of the top cover 110 , and correspondingly, multiple rows of multiple columns of first plugging holes 111 are disposed on each end plate 120 .

[0060] Example 9

[0061] Multiple rows and columns of second plugging holes 131 are respectively disposed on opposite sides of the top cover 110 , and correspondingly, multiple rows and columns of second plugging protrusions 112 are disposed on each side plate 130 .

[0062] Example 10

[0063] A plurality of rows and columns of second plugging protrusions 112 are respectively disposed on opposite sides of the top cover 110 , and correspondingly, a plurality of rows and columns of second plugging holes 131 are disposed on each side plate 130 .

[0064] Embodiment 11

[0065] A plurality of rows and columns of third plug holes 132 are respectively disposed at opposite ends of each side plate 130 , and correspondingly, a third plug protrusion 122 is respectively disposed at opposite ends of each end plate 120 .

[0066] Example 12

[0067] A third plugging protrusion 122 is respectively provided at two opposite ends of each side plate 130 , and correspondingly, a row of multiple columns of third plugging holes 132 is respectively provided at two opposite ends of each end plate 120 .

[0068] Preferably, each first plug-in protrusion 121, each second plug-in protrusion 112, and each third plug-in protrusion 122 can be bent. For example, each first plug-in protrusion 121, each second plug-in protrusion 112, and each third plug-in protrusion 122 are made of aluminum foil. In this way, the stability of the connection between the top cover 110 and the end plate 120, the top cover 110 and the side plate 130, and the end plate 120 and the side plate 130 can be effectively improved.

[0069] Specifically, in the exemplary embodiment, the windshield box 100 further includes a first sealing structure and a second sealing structure. The first sealing structure is installed at the first plug-in protrusion 121 and the first plug-in hole 111, the second plug-in protrusion 112 and the second plug-in hole 131, and the third plug-in protrusion 122 and the third plug-in hole 132 to improve the sealing performance at the plug-in locations, thereby improving the wind blocking effect. The second sealing structure is installed at the first plug-in hole 111, the second plug-in hole 131, and the third plug-in hole 132 to improve the sealing performance at the plug-in holes in an idle state, thereby improving the wind blocking effect.

[0070] Preferably, the first sealing structure includes a plurality of sealing strips. A sealing strip is respectively attached to the connection between each first plugging protrusion 121 and each first plugging hole 111, the connection between each second plugging protrusion 112 and each second plugging hole 131, and the connection between each third plugging protrusion 122 and each third plugging hole 132.

[0071] Preferably, the second sealing structure includes a plurality of sealing tape segments, and a sealing tape segment is affixed to each idle first plug-in hole 111 , each idle second plug-in hole 131 , and each idle third plug-in hole 132 .

[0072] In some embodiments, the top cover 110, each end plate 120 and each side plate 130 are made of wood, and the bottom of the environment simulation chamber 200 has a certain heat conduction function. Compared with paper, wood is more wear-resistant, has a longer service life, and can be reused many times.

[0073] In other embodiments, the top cover 110, each end plate 120 and each side plate 130 are made of plastic. Compared with paper, plastic has stronger wear resistance, longer service life and can be reused more times.

[0074] In some other embodiments, the top cover 110, each end plate 120 and each side plate 130 are made of metal such as steel, iron, copper or aluminum foil. Compared with paper, metal material has stronger wear resistance, longer service life and can be reused many times. At the same time, it has a certain heat conduction function.

[0075] Preferably, the thickness of the top cover 110, each end plate 120 and each side plate 130 is 1 mm-5 mm, which not only enables the windshield box 100 to achieve a lightweight design, but also enables the windshield box 100 to have a wind blocking function.

[0076] Reference Figure 7 The present invention further provides an environmental simulation chamber 200, in which the windshield 100 provided by any of the above-mentioned specific embodiments is arranged. The windshield 100 is covered on the outside of the test piece. When a single battery cell, multiple battery cells, a single module, multiple modules, a single battery pack 300 or multiple battery packs 300 are waiting for the test piece to undergo a low-temperature static performance test in the environmental simulation chamber 200, the windshield 100 can be covered on top of the test piece to block the cold wind and reduce the impact of the cold wind on the test results. After the test is completed, the top cover 110, the end plate 120 and the side plate 130 can be detached from each other. In this way, the space occupied by the windshield 100 when idle is effectively reduced, which greatly facilitates the storage of the windshield 100.

[0077] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", "a specific embodiment" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0078] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the scope disclosed by the present invention according to the technical solution and the concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A windshield box, characterized in that: include: Top cover; Two end plates, detachably connected to opposite ends of the top cover; There are two side panels, which are detachably connected to opposite sides of the top cover respectively; opposite ends of each side panel are detachably connected to one end of the two end panels respectively.

2. The windshield box according to claim 1, characterized in that: The two end plates are respectively plugged into the opposite two ends of the top cover; the two side plates are respectively plugged into the opposite two sides of the top cover; and the opposite two ends of each side plate are respectively plugged into one end of the two end plates.

3. The windshield box according to claim 2, characterized in that: The opposite ends of the top cover are respectively provided with a first plugging hole or a first plugging protrusion, and correspondingly, each of the end plates is provided with the first plugging protrusion or the first plugging hole; The top cover is provided with second plugging holes or second plugging protrusions on opposite sides, respectively, and correspondingly, each of the side panels is provided with the second plugging protrusion or the second plugging hole; The opposite ends of each side plate are respectively provided with a third plugging hole or a third plugging protrusion, and correspondingly, the opposite ends of each end plate are respectively provided with the third plugging protrusion or the third plugging hole.

4. The windshield box according to claim 3, characterized in that: The opposite ends of the top cover are respectively provided with multiple rows and columns of the first plug-in holes or one row and columns of the first plug-in protrusions. Correspondingly, each of the end plates is provided with one row and columns of the first plug-in protrusions or multiple rows and columns of the first plug-in holes.

5. The windshield box according to claim 3, characterized in that: The opposite sides of the top cover are respectively provided with multiple rows and columns of the second plugging holes or multiple rows and columns of the second plugging protrusions. Correspondingly, each of the side panels is provided with multiple rows and columns of the second plugging protrusions or multiple rows and columns of the second plugging holes.

6. The windshield box according to claim 3, characterized in that: The opposite ends of each side plate are respectively provided with a plurality of rows and a column of the third plug-in holes or a third plug-in protrusion. Correspondingly, the opposite ends of each end plate are respectively provided with a third plug-in protrusion or a row and a plurality of columns of the third plug-in holes.

7. The windshield box according to any one of claims 3 to 6, characterized in that: Also includes: The first sealing structure is installed at the insertion position between the first plugging protrusion and the first plugging hole, the insertion position between the second plugging protrusion and the second plugging hole, and the insertion position between the third plugging protrusion and the third plugging hole.

8. The windshield box according to any one of claims 3 to 6, characterized in that: Also includes: The second sealing structure is installed at the first plugging hole, the second plugging hole and the third plugging hole.

9. The windshield box according to any one of claims 3 to 6, characterized in that: The top cover, each of the end panels and each of the side panels are made of wood, plastic or metal.

10. An environmental simulation chamber, characterized in that: The environmental simulation chamber is provided with a windshield box as claimed in any one of claims 1 to 9; the windshield box cover is arranged outside the test piece.

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