CN117388696A

CN117388696A - Incubator simulation model, incubator and constant temperature room

Info

Publication number: CN117388696A
Application number: CN202311696099.9A
Authority: CN
Inventors: 周政; 郭佳; 李静; 盛赟; 宁丽华; 贺宇璇
Original assignee: Trina Energy Storage Solutions Jiangsu Co Ltd
Current assignee: Trina Energy Storage Solutions Jiangsu Co Ltd
Priority date: 2023-12-12
Filing date: 2023-12-12
Publication date: 2024-01-12

Abstract

The invention relates to the technical field of battery testing devices, in particular to an incubator simulation model, an incubator and a constant temperature room. The invention relates to an incubator simulation model, which comprises a simulation box body, a simulation baffle plate and a simulation baffle plate; the simulation flow baffle is respectively stuck to the top plate and the bottom plate, the small side surface at the rear part is stuck to the side wall where the air inlet is positioned, and the side wall where the air inlet is positioned; the simulation flow deflector is connected with the simulation flow baffle, and an obtuse included angle is formed between the simulation flow deflector and the simulation flow baffle. According to the invention, the air flow can be guided by arranging the flow baffle and the flow guide plate, so that the flow field in the box body is uniform, the difference of the cell temperatures at different positions in the incubator can be reduced, the testing precision and the testing efficiency can be improved, the space of the incubator can be saved, and the number of the tested cells can be increased.

Description

Incubator simulation model, incubator and constant temperature room

Technical Field

The invention relates to the technical field of battery testing devices, in particular to an incubator simulation model, an incubator and a constant temperature room.

Background

Along with the policy of energy conservation and emission reduction, the development prospect of the storage battery industry is good, and the battery is key equipment of the current electric automobile or the energy storage field.

The temperature is the key for influencing the service life of the battery, the working temperatures of the battery are different under different environments, however, the regions of China are wide, the temperature change of some cities in four seasons is large, and the battery is inevitably in a severe working environment during working, so that the working states of the battery under different environment temperatures are required to be tested so as to optimize and improve the battery, and the process of test is required to be carried out by means of an incubator.

In order to ensure uniform wind speed in the incubator so as to ensure uniform temperatures at different positions in the incubator, an incubator simulation model is usually built first, and then a flow channel of the incubator simulation model is subjected to simulation optimization.

The incubator simulation model in the prior art is often limited to the whole incubator model for optimization simulation during optimization, so that the wind speed in the incubator is difficult to meet the requirement, and the battery test effect is poor.

Disclosure of Invention

The invention aims to provide an incubator simulation model, an incubator and a constant temperature room, which are used for solving the problem that the incubator in the prior art is difficult to ensure uniform wind speed in the incubator.

In order to solve the technical problems, the invention provides a simulation model of an incubator, which comprises a simulation incubator body, a simulation baffle plate and a simulation baffle plate;

the simulation box body comprises a top plate, a bottom plate and a plurality of side walls, wherein at least one side wall is provided with an air inlet;

the simulation flow baffle plate is respectively attached to the top plate and the bottom plate and the side wall of the air inlet;

the simulation flow deflector is connected with the simulation flow deflector, and an obtuse included angle is formed between the simulation flow deflector and the simulation flow deflector.

Further, the intelligent power supply system further comprises a simulation supporting plate, and a plurality of electric core placing positions are arranged on the front side portion, away from the air inlet, of the simulation supporting plate.

Further, the plurality of battery cells are placed in sequence along the direction away from the air inlet, and the distance between the battery cells and the front end of the simulation supporting plate is reduced in sequence.

Further, the simulation supporting plates are multiple, and the simulation supporting plates are sequentially arranged in the simulation box body at intervals along the up-down direction.

Further, avoidance notches for avoiding the simulation guide plates and the simulation flow baffle plates are formed in the simulation supporting plates.

Further, the included angle between the simulation flow baffle and the side wall where the air inlet is located is in the range of 30-70 degrees.

The invention also provides a constant temperature box, which comprises a box body, a baffle plate and a guide plate;

the box body comprises a top plate, a bottom plate and a plurality of side walls, wherein at least one side wall is provided with an air inlet;

the flow baffle plate is respectively attached to the top plate and the bottom plate and the side wall of the air inlet;

the guide plate is connected with the flow baffle, and an obtuse included angle is formed between the guide plate and the flow baffle.

Further, the battery cell storage device also comprises a support plate, and a plurality of battery cell storage positions are arranged on the front side part of the support plate, which is far away from the air inlet.

Further, the plurality of battery cells are placed in sequence along the direction away from the air inlet, and the distance between the battery cells and the front end of the supporting plate is reduced in sequence.

Further, the plurality of supporting plates are arranged in the box body at intervals in sequence along the up-down direction.

Further, an avoidance gap for avoiding the guide plate and the flow baffle is formed in the supporting plate.

Further, an included angle between the flow baffle and the side wall where the air inlet is located is in a range of 30-70 degrees.

The invention also provides a constant temperature room, which comprises a house main body, a baffle plate and a guide plate;

the house main body comprises a top plate, a bottom plate and a plurality of side walls, wherein at least one side wall is provided with an air inlet;

Further, the plurality of supporting plates are arranged in the house body at intervals in sequence along the up-down direction.

Compared with the prior art, the invention has at least the following beneficial effects:

according to the invention, the air flow can be guided by arranging the flow baffle and the flow guide plate, so that the flow field in the box body is uniform, the difference of the temperatures of the battery cells at different positions in the incubator can be reduced, and the testing precision and the testing efficiency are improved. In addition, because only the baffle plate and the guide plate are arranged at the air inlet, the space occupied by the baffle plate and the guide plate is small, the space of the incubator can be saved, the number of test cells is increased, and the test efficiency is further improved.

Drawings

FIG. 1 is a schematic diagram of an initial simulation model of an incubator simulation model of the present invention;

FIG. 2 is a velocity cloud image of scenario one of the initial simulation model of the oven simulation model of the present invention;

FIG. 3 is a velocity cloud image of scenario two of an initial simulation model of an oven simulation model of the present invention;

FIG. 4 is a velocity cloud image of scenario three of an initial simulation model of an oven simulation model of the present invention;

FIG. 5 is a schematic view of the structure of the simulation model of the incubator of the present invention;

FIG. 6 is a schematic view of a simulated baffle and simulated baffle of the oven simulation model of FIG. 5;

FIG. 7 is a velocity cloud image of a fourth, fifth and sixth version of the oven simulation model of the present invention;

FIG. 8 is a velocity cloud of scheme seven of the oven simulation model of the present invention;

FIG. 9 is a velocity cloud of scheme eight of the oven simulation model of the present invention;

FIG. 10 is a velocity cloud of the front wall of the battery cell of scheme nine of the oven simulation model of the present invention;

FIG. 11 is a velocity cloud image of the rear wall of a battery cell of a ninth aspect of the oven simulation model of the present invention;

FIG. 12 is a schematic view of the structure of the pallet of the oven simulation model of FIG. 5;

reference numerals:

100. a simulation box body; 110. an air inlet; 120. an air outlet; 200. a simulated flow baffle; 300. simulation guide plates; 400. a simulation supporting plate; 410. a plate hole; 420. avoiding the notch; 430. the battery cell placement position; 600. and simulating the cell wiring box.

Detailed Description

An incubator simulation model, incubator and constant temperature room of the present invention will be described in conjunction with the accompanying schematic drawings, in which preferred embodiments of the present invention are shown, it being understood that one skilled in the art could modify the invention described herein while still achieving the beneficial effects of the invention. Accordingly, the following description is to be construed as broadly known to those skilled in the art and not as limiting the invention.

The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the invention will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.

The inventor researches and discovers that when the conventional simulation model of the incubator is used for optimizing the flow channel, the simulation model is limited to the whole optimization simulation of the incubator, and the influence of factors in the incubator, such as the placement positions of the supporting plates and the battery cells, on the flow field is rarely considered, so that the air flow speed in the incubator is uneven, and when the battery test is carried out, the temperatures of the batteries at different positions in the incubator are inconsistent, the test precision is low, and the test efficiency is lower.

In order to improve the battery test precision and the test efficiency, the inventor fully considers the influence of articles in the incubator on the flow field in the incubator from the practical situation, and optimizes the simulation model of the incubator.

In order to obtain a required incubator simulation model, as shown in fig. 1, an initial simulation model is firstly established by using three-dimensional modeling software, wherein two layers of electric cores are arranged in the initial simulation model, three electric cores are arranged in each layer, and the electric cores are sequentially named as a first row of electric cores, a second row of electric cores and a third row of electric cores from the direction close to an air outlet 120;

then, carrying out ventilation entity test on the box body of the entity incubator, and carrying out speed sampling summarization on key positions such as the air inlet 110, the air outlet 120 and the like by an air speed tester;

then extracting flow field distribution conditions in the incubator of the entity, focusing on gas flow velocity conditions, and performing simulation actual measurement comparison;

and then optimizing the initial simulation model until the initial simulation model is consistent with the box body of the entity incubator.

In order to optimize the initial simulation model, the inventor starts from two aspects, namely, directly placing the battery cell on a supporting plate in the simulation box body 100, and judging the flow field distribution conditions of the front large surface and the reverse large surface of the battery cell; secondly, the flow field in the simulation box body 100 is optimized, and then the battery cells are placed in the optimized flow field, so that the battery cells are distributed smoothly.

Specifically, the flow field analysis is performed on the initial simulation model to obtain a conclusion: the internal wind speed of the incubator is uneven, so that the flow field distribution on the supporting plate of each layer is uneven, and the wind speed of the rear section of the supporting plate is smaller, so that the battery cell is placed at the front section of the supporting plate in the process of simulation optimization.

Based on the above conclusion, the inventors have made the following attempts: the method comprises the steps that the internal structure of the incubator is not changed, the arrangement mode of the electric cores of each layer is singly changed, a scheme I and a scheme II are arranged, the electric cores of each layer are placed at equal intervals along the staggering, wherein the electric core of the scheme I is sequentially and gradually close to the front end of a supporting plate, an obtained Velocity cloud picture (Velocity content) is shown in fig. 2, corresponds to a wire frame, and fig. 2 sequentially shows Velocity cloud pictures of the electric cores of a first row, the electric cores of a second row and the electric cores of a third row from top to bottom; the battery cells in the second scheme are gradually far away from the front end of the supporting plate in sequence, the obtained speed cloud pictures are shown in fig. 3, correspond to the wire frames, and fig. 3 shows the speed cloud pictures of the battery cells in the first row, the battery cells in the second row and the battery cells in the third row from top to bottom in sequence; the three battery cells of the scheme III are sequentially placed horizontally at equal intervals, the obtained speed cloud patterns are shown in fig. 4, the speed cloud patterns of the large faces of the battery cells in the three schemes are compared, so that the optimal scheme is selected, if the scheme meets the speed consistency of the large faces of the battery cells, the optimization is successful, and if the scheme does not meet the speed consistency, further attempts are needed.

The simulation shows that the speed cloud patterns presented among the groups of the schemes are extremely uneven, and the phenomenon that the flow fields on the surfaces of the electric cores are inconsistent can not be changed by singly changing the arrangement positions of the electric cores, so that further attempts are needed, and the method is specifically as follows:

the internal structure of the constant temperature box is changed, and the battery cells are not placed in the box body, so that the flow fields at the battery cell planker layers in the box body are uniformly distributed. To achieve this, the inventors creatively provide the dummy baffle 200 and the dummy baffle 300 in the dummy box 100. Specifically, as shown in fig. 5 and fig. 6, the simulated flow baffle 200 is connected with the simulated flow baffle 300, so that an acute angle is formed between the simulated flow baffle 200 and a part of the side wall of the simulated box 100 where the air inlet is located, and according to different angles, a fourth scheme, a fifth scheme and a sixth scheme are respectively formed, wherein in the three schemes, the angles between the simulated flow baffle 200 and the side wall of the simulated box 100 are 40 °, 50 ° and 60 °, respectively, and then further simulation analysis is performed. Of course, the number of schemes can be increased, and different included angles can be set. From these schemes, a preferred set of schemes is found.

Three sections are selected from each scheme, as shown in fig. 7, the first row is a velocity cloud image of three sections of a scheme four, the second row is a velocity cloud image of three sections of a scheme five, and the third row is a velocity cloud image of three sections of a scheme six.

On the basis, the battery cells with different arrangement modes in the first scheme, the second scheme and the third scheme are placed in a better flow field of the fifth scheme, further simulation analysis is carried out, the arrangement modes are continuously optimized according to simulation results, three better technical schemes are selected from the simulation results to be compared, and the battery cells are used as the seventh scheme, the eighth scheme and the ninth scheme, wherein the positions of the battery cell placement positions for placing the battery cells in the different schemes are different.

The simulated cloud patterns of the seventh scheme are shown in fig. 8, wherein the three simulated patterns of the first row show the velocity cloud patterns of the rear wall surface of the battery cell, the three simulated patterns of the second row show the velocity cloud patterns of the front wall surface of the battery cell, corresponding to the wire frame, in fig. 8, the first column of simulated patterns show the velocity cloud patterns of the first column of battery cells and the second column of battery cells, the second column of simulated patterns show the velocity cloud patterns of the third battery cell of the first layer, the third column of simulated patterns show the velocity cloud patterns of the third battery cell of the second layer, and table 1 below shows the average values of the velocity sampling points of the front wall surface and the rear wall surface of the battery cell of the seventh scheme.

TABLE 1

The simulation cloud patterns of the eighth scheme are shown in fig. 9, wherein the three simulation patterns of the first row show the velocity cloud patterns of the rear wall surface of the battery cell, the three simulation patterns of the second row show the velocity cloud patterns of the front wall surface of the battery cell, corresponding to the wire frame, in fig. 9, the first column of simulation patterns show the velocity cloud patterns of the first column of battery cells and the second column of battery cells, the second column of simulation patterns show the velocity cloud patterns of the third battery cell of the first layer, the third column of simulation patterns show the velocity cloud patterns of the third battery cell of the second layer, and the following table 2 shows the average values of the velocity sampling points of the front wall surface and the rear wall surface of the battery cell of the eighth scheme.

TABLE 2

The simulated cloud chart of the ninth aspect is shown in fig. 10 and 11, where fig. 10 shows a velocity cloud chart of the front wall surface of the battery cell, fig. 11 shows a velocity cloud chart of the rear wall surface of the battery cell, and table 3 below shows the average value of velocity sampling points of the front wall surface and the rear wall surface of the battery cell of the ninth aspect.

TABLE 3 Table 3

As can be seen from comparison of tables 1, 2 and 3, the average value of the sampling points of the front and rear wall surfaces of the battery cells in the ninth scheme is relatively uniform, and the flow field distribution is relatively good, so that the flow field distribution of the front and rear large surfaces of each battery cell is relatively uniform.

By the mode, the preferred embodiment of the incubator simulation model is obtained, and the incubator and the constant temperature room are formed on the basis of the incubator simulation model by continuous optimization.

An incubator simulation model in an embodiment of the first aspect of the present invention will be described in detail with reference to the accompanying drawings.

In one embodiment, as shown in fig. 5 and 6, the incubator simulation model of the present embodiment includes a simulation case 100, a simulation baffle 200, and a simulation baffle 300.

The simulation box 100 includes a top plate, a bottom plate, and a plurality of side walls, wherein at least one of the side walls is provided with an air inlet 110. In this embodiment, four side walls are provided, which are named as a front side wall, a rear side wall, a left side wall and a right side wall, wherein the air inlet 110 is provided on the rear side wall, and in order to adapt to the test of different wind speeds, the air inlet 110 is multiple, and can blow the wind with different wind speeds into the simulation box 100, such as 2.47m/s,4.62m/s,9.09m/s,4.50m/s and 7.16m/s. In other embodiments, a different number of sidewalls, such as three or five, may be provided as desired. An air outlet 120 is also provided on the rear sidewall. In other embodiments, the air outlets 120 may be disposed on other sidewalls.

The simulation baffle 200 and the part where the air inlet 110 is located have an acute angle between the side walls, the simulation baffle 200 is a cuboid plate, extends along the up-down direction, and has two large faces and four small sides, the four small sides are respectively an upper small side, a lower small side, a front small side and a rear small side, the upper small side and the lower small side are respectively attached to the top plate and the bottom plate, the rear small side is attached to the side wall where the air inlet 110 is located, so that a gap does not exist between the baffle and the side wall where the air inlet 110 is located, gas is not easy to enter, and the flow field in the simulation box 100 is not affected.

The simulated deflector 300 is connected to the small front side of the simulated deflector 200, and an obtuse included angle is formed between the simulated deflector 300 and the simulated deflector 200, so that gas can be guided, and the simulated deflector 300 and the simulated deflector 200 can be fixedly connected, for example, by welding or adhesive, or rotatably connected by a hinge.

According to the simulation model of the incubator, through the arrangement of the simulation baffle 200 and the simulation baffle 300, air flow can be guided, so that the flow field inside the simulation incubator 100 is uniform, the difference of the temperatures of the battery cells at different positions in the incubator can be reduced, and the test precision and the test efficiency are improved. In addition, since the simulated flow baffle 200 and the simulated flow baffle 300 are only required to be arranged at the air inlet 110, the space occupied by the simulated flow baffle 200 and the simulated flow baffle 300 is small, so that the space of the incubator can be saved, the number of test cells can be increased, and the test efficiency can be further improved.

In order to test the battery cells, a simulation battery cell wiring box 600 is further disposed in the simulation box 100, and the simulation battery cell wiring box 600 extends along the arrangement direction of the battery cells.

In one embodiment, as shown in fig. 5 and 12, the incubator simulation model further includes a simulation pallet 400, and a front portion of the simulation pallet 400 away from the air inlet is provided with a plurality of battery cell placement positions 430. The simulation supporting plate 400 is arranged to support the battery cells, so that the battery cells can be conveniently placed. Because the wind speed of the rear side part of the simulation supporting plate 400 is smaller, the battery cell placing position 430 is arranged at the front side part of the simulation supporting plate 400, so that the battery cell can be blown by wind more easily, and the temperature of the battery cell can be regulated more conveniently.

Preferably, the plurality of battery cell placement sites 430 are sequentially arranged along a direction away from the air inlet 110, and the distance from the front end of the simulation pallet 400 is sequentially reduced.

It should be noted that, the positions of the cell placement bits 430 on the simulation supporting plate 400 in fig. 12 are only exemplary, and the cell placement bits 430 may not be set at the specific positions shown in fig. 12, and in practical applications, the positions of the cell placement bits 430 on the simulation supporting plate 400 may be flexibly adjusted according to the actual working conditions and specific requirements.

Specifically, as shown in fig. 5, the air inlet 110 of the present embodiment is disposed at a left side position of the rear sidewall, and the plurality of battery cell placement sites 430 are sequentially arranged in the order from left to right, and the distance from the front end of the pallet in the front-rear direction is sequentially reduced. When the electric cores are arranged on the corresponding electric core placing positions 430, the distances between the electric cores and the front ends of the supporting plates in the front-rear direction are sequentially reduced, and the speed consistency of the front large surface and the back large surface of each electric core is good after simulation analysis.

In one embodiment, as shown in fig. 5 and fig. 12, in order to arrange a greater number of electric cells, the simulation supporting plates 400 are plural, the multiple simulation supporting plates 400 are sequentially arranged in the simulation box 100 at intervals along the up-down direction, each simulation supporting plate 400 can be provided with a plurality of electric cells, and the simulation supporting plate 400 is provided with a plate hole 410 through which air flows can pass. Of course, when the height dimension of the simulation box 100 is small, only one simulation pallet 400 may be provided.

In one embodiment, the simulated deflector 300 is in an integral structure, and the simulated baffle 200 is also in an integral structure, and in order to install the simulated deflector 300 and the simulated baffle 200, the simulated support plate 400 is provided with an avoidance gap 420 for avoiding the simulated deflector 300 and the simulated baffle 200. In other embodiments, the simulated deflector 300 and the simulated deflector 200 are both in a sectional structure, i.e. a section of simulated deflector 300 and a section of simulated deflector are disposed on each layer of simulated pallet 400, and no avoidance gap 420 is required.

In one embodiment, the included angle between the simulated baffle 200 and the sidewall of the air inlet 110 is preferably in the range of 30 ° to 70 °. According to the simulation result, when the included angle between the simulated flow baffle 200 and the side wall of the air inlet 110 is in the range of 30 ° to 70 °, such as 40 °, 50 ° or 60 °, the uniformity of the flow field in the simulation box 100 is better.

Furthermore, by further optimization, one of the preferred embodiments obtained is: the included angle between the simulation baffle 200 and the rear side wall is 50 degrees, the included angle between the simulation baffle 300 and the simulation baffle 200 is 120 degrees, the length dimension of the simulation box 100 is 100cm, the width dimension is 60cm, the height dimension is 100cm, the width of the simulation baffle 200 is 13cm, the width of the simulation baffle 300 is 11.5cm, the heights of the simulation baffle 200 and the simulation baffle 300 are 100cm, the length dimension of the battery cell wiring box is 100cm, the width dimension and the height dimension are 9cm, three battery cell placing positions 430 on each layer of supporting plate are sequentially arranged from left to right, and the distances from the front end of the simulation supporting plate 400 are sequentially 22cm, 12cm and 11cm.

An incubator according to an embodiment of the second aspect of the present invention will be described.

The incubator of the embodiment of the present aspect is manufactured according to the incubator simulation model of the embodiment of the first aspect described above, and its structure is the same as that of the incubator simulation model of the embodiment of the first aspect described above.

In one embodiment, the incubator of the present embodiment includes a cabinet, a baffle, and a baffle.

The box comprises a top plate, a bottom plate and a plurality of side walls, wherein an air inlet is formed in one side wall. In this embodiment, four side walls are provided, which are named as a front side wall, a rear side wall, a left side wall and a right side wall, respectively, wherein the air inlets are formed in the rear side wall, and in order to adapt to the test of different wind speeds, the air inlets are multiple, and can blow wind with different wind speeds into the simulation box, such as 2.47m/s,4.62m/s,9.09m/s,4.50m/s and 7.16m/s. In other embodiments, a different number of sidewalls, such as three or five, may be provided as desired. And an air outlet is also arranged on the rear side wall. In other embodiments, the air outlets may also be provided on other side walls.

The flow baffle plate and the part where the air inlet is located have acute angle contained angle between the lateral wall, the flow baffle plate is cuboid-shaped plate, extends along the upper and lower direction, has two big faces and four little sides, and four little sides are upper portion little side, lower part little side, front portion little side and rear portion little side respectively, upper portion little side with lower portion little side is tight with the roof with the bottom plate is tight respectively, the rear portion little side is tight with the lateral wall where the air inlet is located for there is not the gap between the lateral wall where flow baffle plate and the air inlet is located, and gas is difficult to get into, can not influence the flow field in the box.

The baffle with the anterior little side of baffle is connected, the baffle with have obtuse angle contained angle between the baffle to can lead gas, the connected mode of two can be fixed connection, for example, through welding or viscose fixed connection, can also be through the rotatable connection of hinge mode.

According to the incubator disclosed by the embodiment, the air flow can be guided through the baffle plate and the guide plate, so that the flow field in the incubator body is uniform, the difference of the cell temperatures at different positions in the incubator body can be reduced, and the testing precision and the testing efficiency are improved. In addition, because only the baffle plate and the guide plate are arranged at the air inlet, the space occupied by the baffle plate and the guide plate is small, the space of the incubator can be saved, the number of test cells is increased, and the test efficiency is further improved.

In order to test the battery cells, a battery cell wiring box is further arranged in the box body, and the battery cell wiring box extends along the arrangement direction of the battery cells.

In one embodiment, the incubator further comprises a support plate, and a plurality of electric core placing positions are arranged on the front side part of the support plate away from the air inlet. The supporting plate is arranged to support the battery cell, so that the battery cell can be conveniently placed. Because the wind speed of the rear side part of the supporting plate is smaller, the battery cell placement position is arranged at the front side part of the supporting plate, so that the battery cells can be blown to the battery cells more easily, and the temperature of the battery cells can be regulated more conveniently.

Preferably, the plurality of battery cells are arranged in sequence along the direction away from the air inlet, and the distance between the battery cells and the front end of the supporting plate is reduced in sequence.

Specifically, the air inlet of this embodiment is disposed at the left side position of the rear sidewall, and the plurality of battery cells are sequentially arranged in the order from left to right, and the distance between the battery cells and the front end of the supporting plate in the front-rear direction is sequentially reduced. When the electric cores are arranged on the corresponding electric core placing positions, the distances between the electric cores and the front ends of the supporting plates in the front-rear direction are sequentially reduced, and the speed consistency of the front large surface and the reverse large surface of each electric core is found to be good after simulation analysis.

In one embodiment, in order to arrange a greater number of electric cells, the support plates are multiple, the support plates are sequentially arranged in the box body at intervals along the up-down direction, each support plate can be provided with a plurality of electric cells, and the support plates are provided with plate holes through which air flows can pass. Of course, when the height dimension of the case is small, only one pallet may be provided.

In one embodiment, the deflector is of an integral structure, and the baffle is of an integral structure, so that the deflector and the baffle are installed, and the supporting plate is provided with an avoidance notch for avoiding the deflector and the baffle. In other embodiments, the deflector and the baffle are of a sectional structure, i.e. a section of deflector and air guard are arranged on each layer of supporting plate, and no avoidance gap is needed.

In one embodiment, the included angle between the baffle plate and the side wall where the air inlet is located is preferably in the range of 30 ° to 70 °. According to simulation results, when the included angle between the simulation flow baffle and the side wall where the air inlet is located is 30 degrees to 70 degrees, such as 40 degrees, 50 degrees or 60 degrees, the uniformity of the flow field in the simulation box body 100 is good.

Furthermore, by further optimization, one of the preferred embodiments obtained is: the contained angle between baffle and the back lateral wall is 50, and the contained angle between baffle and the baffle is 120, and the length dimension of box is 100cm, and width dimension is 60cm, and the height dimension is 100cm, and the width of baffle is 13cm baffle width and is 11.5cm, and the height of baffle and baffle is 100cm, and the length dimension of electric core wiring box is 100cm, and width dimension and height dimension are 9cm, and the electric core on every layer of layer board is placed the position and is three, arranges in proper order from left to right, and is 22cm, 12cm, 11cm apart from the distance of emulation layer board front end in proper order.

The thermostatic chamber in the embodiment of the third aspect of the invention is described below.

The oven chamber in the embodiment of the present aspect is manufactured according to the oven simulation model in the embodiment of the first aspect described above.

In one embodiment, the constant temperature room of the present embodiment includes a house main body, a flow blocking plate, and a flow guiding plate.

The house main body comprises a top plate, a bottom plate and a plurality of side walls, wherein an air inlet is formed in one side wall. In this embodiment, four side walls are provided, respectively named front side wall, rear side wall, left side wall and right side wall, wherein the air inlet is provided on the rear side wall. In other embodiments, a different number of sidewalls, such as three or five, may be provided as desired. And an air outlet is also arranged on the rear side wall. In other embodiments, the air outlets may also be provided on other side walls.

Because the constant temperature room is great in volume, in order to conveniently arrange the product of waiting to test in the house main part, still be provided with on the lateral wall and can open and close the door, through the door, the tester can get into in the house main part. The constant temperature chamber of the present embodiment and the incubator of the second embodiment described above can be used for testing the battery cell, but also for other products sensitive to temperature. Of course, the constant temperature room of the embodiment can also test products with larger volume because of larger volume.

The flow baffle plate and the part where the air inlet is located are provided with acute angle included angles between the side walls, the flow baffle plate is a cuboid plate and extends along the up-down direction, the flow baffle plate is provided with two large faces and four small side faces, the four small side faces are respectively an upper small side face, a lower small side face, a front small side face and a rear small side face, the upper small side face and the lower small side face are respectively attached to the top plate and the bottom plate, the rear small side face is attached to the side wall where the air inlet is located, gaps do not exist between the flow baffle plate and the side wall where the air inlet is located, gas is not easy to enter, and the flow field in the room body is not affected.

According to the constant temperature room, the air flow can be guided through the flow baffle and the flow guide plate, so that the flow field in the box body is uniform, the difference of the cell temperatures at different positions in the constant temperature room can be reduced, and the testing precision and the testing efficiency are improved. In addition, because only the flow baffle and the flow guide plate are arranged at the air inlet, the space occupied by the flow baffle and the flow guide plate is small, the space of a constant-temperature room can be saved, the number of test cells is increased, and the test efficiency is further improved.

In order to test the battery cells, a battery cell wiring box is further arranged in the house body, and the battery cell wiring box extends along the arrangement direction of the battery cells.

In one embodiment, the constant temperature room further comprises a supporting plate, and a plurality of electric core placing positions are arranged on the front side portion, away from the air inlet, of the supporting plate. The supporting plate is arranged to support the battery cell, so that the battery cell can be conveniently placed. Because the wind speed of the rear side part of the supporting plate is smaller, the battery cell placement position is arranged at the front side part of the supporting plate, so that the battery cells can be blown to the battery cells more easily, and the temperature of the battery cells can be regulated more conveniently.

Specifically, as shown in fig. 1 and 5, the air inlet of the present embodiment is disposed at the left side position of the rear sidewall, and the plurality of battery cells are sequentially arranged in the order from left to right, and the distance from the front end of the supporting plate in the front-rear direction is sequentially reduced. When the electric cores are arranged on the corresponding electric core placing positions, the distances between the electric cores and the front ends of the supporting plates in the front-rear direction are sequentially reduced, and the speed consistency of the front large surface and the reverse large surface of each electric core is found to be good after simulation analysis.

In one embodiment, in order to arrange a greater number of electric cells, the support plates are multiple, the support plates are sequentially arranged in the house body at intervals along the up-down direction, each support plate can be provided with a plurality of electric cells, and the support plates are provided with plate holes through which air flows can pass. Of course, when the height dimension of the house main body is small, only one pallet may be provided.

In one embodiment, the included angle between the baffle plate and the side wall where the air inlet is located is preferably in the range of 30 ° to 70 °. When the included angle between the flow baffle and the side wall where the air inlet is positioned is 30-70 degrees, such as 40 degrees, 50 degrees or 60 degrees, the uniformity of the flow field in the house body is good. Through further optimization, according to simulation results, in a preferred embodiment, the included angle between the flow baffle and the rear side wall is 50 degrees, so that the included angle between the flow baffle and the flow baffle is 120 degrees.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The simulation model of the incubator is characterized by comprising a simulation box body, a simulation baffle plate and a simulation guide plate;

2. The oven simulation model of claim 1, further comprising a simulation pallet, wherein a front portion of the simulation pallet remote from the air inlet is provided with a plurality of cell placement sites.

3. The incubator simulation model of claim 2, wherein a plurality of the cell placement sites are sequentially arranged in a direction away from the air inlet, and the distances from the front ends of the simulation trays are sequentially reduced.

4. The incubator simulation model of claim 2, wherein a plurality of the simulation pallets are sequentially arranged in the simulation chamber at intervals in the up-down direction.

5. The simulation model of an incubator according to claim 4, wherein the simulation supporting plate is provided with a avoidance gap for avoiding the simulation deflector and the simulation baffle.

6. Incubator simulation model according to any one of claims 1-5, wherein the angle between the simulation baffle and the side wall where the air inlet is located is in the range of 30 ° to 70 °.

7. The constant temperature box is characterized by comprising a box body, a baffle plate and a guide plate;

8. The incubator of claim 7, further comprising a tray provided with a plurality of cell placement sites at a front portion of the tray remote from the air inlet.

9. The incubator of claim 8, wherein the plurality of cell placement sites are sequentially arranged in a direction away from the air inlet and the distance from the front end of the tray is sequentially reduced.

10. An incubator according to claim 8, wherein a plurality of said pallets are provided, and a plurality of said pallets are sequentially arranged in the incubator at intervals in the up-down direction.

11. The incubator of claim 10, wherein the support plate is provided with a relief notch that relieves the deflector and the baffle.

12. Incubator according to any one of claims 7 to 11, characterized in that the angle between the baffle plate and the side wall where the air inlet is located is in the range of 30 ° to 70 °.

13. The constant temperature room is characterized by comprising a house main body, a baffle plate and a guide plate;

14. The constant temperature room of claim 13, further comprising a tray, a front portion of the tray remote from the air inlet being provided with a plurality of cell placement sites.

15. The constant temperature room of claim 14, wherein a plurality of the cell placement sites are sequentially arranged in a direction away from the air inlet and the distance from the front end of the pallet is sequentially reduced.

16. The constant temperature room according to claim 14, wherein a plurality of the pallets are provided, and the plurality of the pallets are sequentially arranged in the room body at intervals in the up-down direction.

17. The constant temperature room of claim 16, wherein the support plate is provided with an avoidance gap for avoiding the deflector and the baffle.

18. A constant temperature housing according to any one of claims 13 to 17, wherein the angle between the baffle and the side wall of the air inlet is in the range 30 ° to 70 °.