Standing warehouse
By setting the positions of the air supply and return vents in the static chamber and utilizing the natural flow characteristics of hot and cold air, the problem of poor heat dissipation in the static chamber was solved, thereby improving battery temperature consistency and testing accuracy.
Patent Information
- Application Number
- CN202520113396.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-17
AI Technical Summary
The existing static storage chamber has poor heat dissipation, which causes interference between batteries at different temperatures, affecting the temperature consistency of the batteries and resulting in low accuracy of K-value testing.
Design a static storage unit with the air supply vent at the top and the return air vent at the bottom. Utilizing the characteristics of hot air rising and cold air sinking, the cold air enters the storage unit from the front opening, carries away the heat, and leaves from the rear opening. The storage unit forms a closed containment space on all four sides, resulting in a short cold air flow path, reducing losses, and ensuring temperature consistency.
It improves heat dissipation during battery resting, ensures battery temperature consistency, and enhances the accuracy of K-value testing.
Smart Images
Figure CN223927435U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery technology field, concretely relates to static library. BACKGROUND
[0002] In the battery industry, commonly used K value measures the self-discharge rate of the battery, that is, the voltage drop of the battery per unit time, usually expressed in mV / h. The voltage of the battery is one of the key factors affecting K value test. After the multiple batteries after the capacity distribution are loaded on the tray, the tray is placed on the shelf of the normal temperature static library for a certain time, and then the voltage change is tested to calculate the K value.
[0003] Different temperature batteries are usually placed on the static shelf. Higher temperature batteries are easy to transfer heat to lower temperature batteries, which makes the ambient temperature of the lower temperature batteries rise. The existing static library has poor heat dissipation effect for different temperature batteries, and it is difficult to meet the requirements of battery normal temperature standing. The voltage fluctuation obtained by testing is large, which leads to poor accuracy of the K value test of the battery. UTILITY MODEL CONTENTS
[0004] Therefore, the utility model provides a kind of static library to solve the poor heat dissipation effect of static library, and higher temperature battery is easy to interfere with the static environment of lower temperature battery, which leads to the poor accuracy of subsequent test of battery.
[0005] In one aspect of the utility model, a static library is provided, which is provided with a shelf body, an air supply port towards one side of the shelf body and an air return port towards the other side of the shelf body. The air supply port is located above the air return port. The shelf body is provided with multiple rows of storage locations. Each storage location encloses a closed containing space around it and forms a front opening and a rear opening along a first direction. The containing space is used for placing batteries. The front opening is located on the side of the shelf body close to the air supply port, and the rear opening is located on the side of the shelf body close to the air return port.
[0006] Beneficial effects: the utility model discloses the characteristics of hot air ascending, cold air descending, set the air supply outlet in the upper of static storehouse, set the air return outlet in the lower of static storehouse, the cold wind of air supply outlet can meet the heat ascending of battery faster, reduce the interference between different temperature battery, guarantee the temperature consistency of each storehouse site battery. Moreover, the storehouse site of shelf body is surrounded and encloses the containing space, the shelf body is equipped with opposite front opening and rear opening, and the air supply outlet and air return outlet are set on the opposite two sides of the shelf body with front opening and rear opening respectively, make the cold wind of air supply outlet only enter the storehouse site from the front opening, and the cold wind leaves the storehouse site from the rear opening after taking away the heat of battery in the storehouse site, and the cold wind flow path is shorter, and the loss is smaller, so the heat dissipation effect of battery in the storehouse site is better, and the standing process is stable, can guarantee the test accuracy after the standing of battery. BRIEF DESCRIPTION OF DRAWINGS
[0007] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.
[0008] Figure 1 It is a structure schematic diagram of the static storehouse of the embodiment of the utility model;
[0009] Figure 2 It is a top view of the static storehouse of the embodiment of the utility model;
[0010] Figure 3 It is the installation position schematic diagram of the air return outlet of the static storehouse of the embodiment of the utility model;
[0011] Figure 4 It is a structure schematic diagram of the shelf body of the embodiment of the utility model;
[0012] Figure 5 It is a sectional view of the shelf body of the embodiment of the utility model;
[0013] Figure 6 It is a schematic diagram of the shelf body of the embodiment of the utility model.
[0014] Explanation of reference signs:
[0015] 1, shelf body; 101, storehouse site; 1011, front opening; 1012, rear opening; 1013, first sub-storehouse site; 1014, second sub-storehouse site; 1015, coaming; 102, support piece; 103, first placement area; 104, second placement area; 2, air supply outlet; 3, air return outlet; 4, battery; 5, wall. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0017] Batteries have broad application prospects in automobiles, mobile base stations, energy storage power stations, and other fields. They are usually presented in the form of battery packs connected in series or parallel. The capacity and lifespan of a battery pack are not only related to each individual cell, but also to the consistency between each cell. Among these factors, the consistency of battery self-discharge is one of the important influencing factors.
[0018] In the battery formation process, the self-discharge rate of the battery is measured by testing the K value. After the battery has been sized and placed in a settling chamber for a certain period of time, the voltage change is tested. For example, the open-circuit voltage is tested after the battery has been settling for 12 hours, and then after settling for another 48 hours. The K value is calculated from the two open-circuit voltage tests.
[0019] However, the temperature at which the battery enters the resting chamber varies during different resting stages. Batteries with higher temperatures can easily affect the resting effect of batteries with lower temperatures, causing large fluctuations in the open-circuit test voltage of batteries with lower temperatures, resulting in inaccurate K-value calculations.
[0020] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.
[0021] According to embodiments of the present invention, such as Figure 1 As shown, a static storage room is provided. The static storage room is provided with a shelf body 1, an air supply vent 2 facing one side of the shelf body 1 and a return air vent 3 facing the other side of the shelf body 1. The air supply vent 2 is located above the return air vent 3. The shelf body 1 has multiple rows of storage positions 101. Each storage position 101 forms a closed storage space on all four sides and has a front opening 1011 and a rear opening 1012 along the first direction (W direction). The storage space is used to place batteries 4. The front opening 1011 is located on the side of the shelf body 1 near the air supply vent 2, and the rear opening 1012 is located on the side of the shelf body 1 near the return air vent 3.
[0022] The static storage provided by the embodiment of the utility model, using the characteristics of hot air rising and cold air descending, sets the air supply port 2 above the static storage, sets the air return port 3 below the static storage, the cold air sent out by the air supply port 2 can meet the rising heat emitted by the battery 4 faster, reduces the interference between different temperature batteries 4, and guarantees the temperature consistency of the battery 4 in each storage location 101.Moreover, the storage location 101 of the shelf body 1 encloses a four-side closed containing space, the shelf body 1 is provided with opposite front opening 1011 and rear opening 1012, the air supply port 2 and the air return port 3 are respectively arranged on the opposite two sides of the shelf body 1 with the front opening 1011 and the rear opening 1012, so that the cold air blown out by the air supply port 2 only enters the storage location 101 from the front opening 1011, and after the cold air carries away the heat of the battery 4 in the storage location 101, the cold air leaves the storage location 101 from the rear opening 1012, the cold air flow path is short, the loss is small, so the heat dissipation effect of the battery 4 in the storage location 101 is better, the static process is stable, and the test accuracy after the battery 4 is static can be guaranteed.
[0023] Specifically, the static storage is generally a closed workshop, and the environment for normal temperature static is generally 25±5 DEG C. The air supply port 2 is used for blowing out cold air, can be arranged on the top wall of the static storage, and is provided with a regulating valve for regulating the air flow. The air return port 3 is used for recycling the hot air formed after absorbing the heat of the battery 4, can be arranged on the side wall of the static storage, and is provided with a regulating valve for regulating the air flow, forming a heat dissipation cycle, and continuously dissipating heat for the battery 4 on the shelf body 1, so that the battery 4 is maintained in a normal temperature state for static. The battery 4 is generally placed on a tray, and then the tray full of the battery 4 is placed on the storage location 101 of the shelf body 1, of course, the battery 4 can also be directly placed on the storage location 101 for static.
[0024] In one embodiment, as shown in Figure 4 , the storage location 101 includes a plurality of surrounding plates 1015, and the plurality of surrounding plates 1015 are sequentially connected in a head-to-tail manner to enclose a containing space. Figure 5 As shown in , the front and rear sides of the plurality of surrounding plates 1015 form the front opening 1011 and the rear opening 1012.
[0025] Exemplarily, four surrounding plates 1015 are arranged, and the four surrounding plates 1015 enclose a four-side closed structure, so that the cold air only enters and exits the storage location 101 from the front opening 1011 and the rear opening 1012, so as to dissipate heat for the battery 4 in the storage location 101 and guarantee the temperature consistency of the battery 4 in different storage locations 101.
[0026] Figure 4 It should be noted that the first direction of the embodiment of the utility model is indicated by the arrow W in Figure 4 , that is, the front-rear direction, the second direction is indicated by the arrow H in Figure 4 , that is, the up-down direction, and the third direction is indicated by the arrow L in
[0027] In one embodiment, as shown in Figure 4 and Figure 5 shown, along the first direction (W direction), the support 102 for placing the battery 4 is arranged in the storage location 101. Specifically, the support 102 is a pair of support plates, and the pair of support plates are respectively fixed to the inner walls of the left and right side walls. Along the second direction (H direction), the opposite sides of the battery 4 are left with a gap from the storage location 101. The support 102 is used to support the battery 4, so that the upper and lower sides of the battery 4 are left with a gap from the storage location 101, and the cold air entering the storage location 101 from the front opening 1011 can pass through the gap between the upper and lower sides of the battery 4 and the storage location 101 to achieve heat dissipation on the upper and lower surfaces of the battery 4.
[0028] Alternatively, the tray is placed on the support 102, and along the second direction (H direction), the opposite sides of the tray are left with a gap from the storage location 101, and the cold air passes through the gap to achieve heat dissipation on the upper and lower sides of the tray.
[0029] Further, in one embodiment, along the third direction (L direction), the opposite sides of the battery 4 are left with a gap from the storage location 101. Similarly, the cold air entering the storage location 101 from the front opening 1011 can pass through the gap between the left and right sides of the battery 4 and the storage location 101 to achieve heat dissipation on the left and right surfaces of the battery 4.
[0030] Alternatively, the tray is placed on the support 102, and along the third direction (L direction), the opposite sides of the tray are left with a gap from the storage location 101. With this design, the battery 4 has gaps in the up-down and left-right directions for the cold air to pass through, which can faster and more evenly take away the heat on the surface of the battery 4, thereby improving the heat dissipation efficiency.
[0031] In one embodiment, as shown in Figure 6 shown, along the second direction (H direction), the shelf body 1 is divided into a first placement area 103 at the upper end and a second placement area 104 at the lower end, and the plurality of rows of storage locations 101 include a plurality of rows of first sub-storage locations 1013 in the first placement area 103 and a plurality of rows of second sub-storage locations 1014 in the second placement area 104, and the temperature of the battery 4 placed in the first sub-storage location 1013 is higher than the temperature of the battery 4 placed in the second sub-storage location 1014.
[0032] The utility model discloses an embodiment, utilize the characteristics that hot air is heavier than cold air, place the battery 4 of higher temperature in the first sub -library position 1013 of first placement area 103 of upper end and carry out normal temperature stationary, place the battery 4 of lower temperature in the second sub -library position 1014 of second placement area 104 of lower end and carry out normal temperature stationary, the heat of battery 4 in first placement area 103 emits and forms hot air to gather in upper end, and from the four around of first placement area 103, the influence to the battery 4 of second placement area 104 is less, the temperature of battery 4 of second placement area 104 is lower than the temperature of battery 4 of first placement area 103, therefore, the heat of battery 4 of second placement area 104 emits and forms hot air to the temperature influence of battery 4 of first placement area 103 also less upwards, further improve the stability of stationary process, benefit guaranteeing the test accuracy of battery 4 after stationary.
[0033] Because the temperature of battery 4 is susceptible to the influence of processing procedure and battery 4 type and other factors, the battery 4 of different temperature is placed in different placement area, can also avoid the confusion of battery 4.
[0034] In an embodiment, the arrangement density of the plurality of rows of first sub-positions 1031 is less than the arrangement density of the plurality of rows of second sub-positions 1014. The smaller the arrangement density of the plurality of rows of first sub-positions 1031, the lower the temperature of the battery 4 gathered together in the plurality of rows of first sub-positions 1031, and the smaller the influence on the battery 4 of lower temperature in the second sub-positions 1014. Moreover, the ventilation space of the plurality of rows of first sub-positions 1031 is relatively larger than the ventilation space of the plurality of rows of second sub-positions 1014, thereby facilitating the improvement of heat dissipation efficiency.
[0035] Further, in an embodiment, along the third direction (L direction), the spacing between adjacent first sub-positions 1013 is greater than the spacing between adjacent second sub-positions 1014.
[0036] And / or, along the second direction (H direction), the spacing between adjacent first sub-positions 1013 is greater than the spacing between adjacent second sub-positions 1014. To further reduce the influence of the battery 4 of higher temperature in the first sub-positions 1031 on the battery 4 of lower temperature in the second sub-positions 1014.
[0037] In an embodiment, along the second direction (H direction), the plurality of rows of first sub-positions 1013 and the plurality of rows of second sub-positions 1014 are correspondingly distributed, for example, the plurality of rows of first sub-positions 1013 and the plurality of rows of second sub-positions 1014 are arranged in alignment. The number of rows of the first sub-positions 1013 is less than the number of rows of the second sub-positions 1014, avoiding the battery 4 of the first sub-positions 1013 from being stored in too large a quantity, causing heat to spread downward, and further reducing the influence of the battery 4 of higher temperature in the first sub-positions 1013 on the battery 4 of lower temperature in the second sub-positions 1014.
[0038] In one embodiment, when the first sub-warehouse positions 1013 and the second sub-warehouse positions 1014 are arranged in one-to-one alignment, the ratio of the number of rows of the first sub-warehouse positions 1013 to the number of rows of the second sub-warehouse positions 1014 is 1:9 to 3:4, for example, the ratio of the number of rows of the first sub-warehouse positions 1013 to the number of rows of the second sub-warehouse positions 1014 is 1:4. At this time, the ratio of the number of rows of the first sub-warehouse positions 1013 to the number of rows of the second sub-warehouse positions 1014 is equal to the ratio of the number of the first sub-warehouse positions 1013 to the number of the second sub-warehouse positions 1014.
[0039] The ratio of the number of rows of the first sub-warehouse positions 1013 to the number of rows of the second sub-warehouse positions 1014 needs to be determined according to the static time and temperature of the battery 4 placed in the first sub-warehouse position 1013 and the static time and temperature of the battery 4 placed in the second sub-warehouse position 1014.
[0040] Further, in one embodiment, the ratio of the static time of the battery 4 placed in the first sub-warehouse position 1013 to the static time of the battery 4 placed in the second sub-warehouse position 1014 is 1:4.
[0041] For example, the static time of the battery 4 in the first sub-warehouse position 1013 is 12 hours, and the storage temperature is 45°C. The static time of the battery 4 in the second sub-warehouse position 1014 is 48 hours, and the temperature is 25°C. The first sub-warehouse position 1013 is arranged in two rows, and the second sub-warehouse position 1014 is arranged in eight rows. The temperature fluctuation of the battery 4 in the second sub-warehouse position 1014 is within ±4°C.
[0042] After the battery 4 is static in the first sub-warehouse position 1013 for 12 hours, the temperature has decreased, and if the battery 4 needs to continue to be static, it can be transferred to the second sub-warehouse position 1014. That is, the battery 4 after being static in the first sub-warehouse position 1013 can be transferred to the second sub-warehouse position 1014 for continued static.
[0043] The top and bottom of the conventional static shelf are usually provided with a hollow area to reduce the weight of the static shelf and facilitate heat diffusion. The cold air of the static warehouse easily escapes from the hollow area of the top and bottom of the static shelf.
[0044] In order to avoid the escape of cold air from the top and bottom of the shelf body 1, in one embodiment, the top and bottom of the shelf body 1 are respectively provided with closed sealing plates, the sealing plate at the top of the shelf body 1 is used to seal the space between the top of the shelf body 1 and the top of the static warehouse, and the sealing plate at the bottom of the shelf body 1 is used to seal the space between the bottom of the shelf body 1 and the bottom of the static warehouse, so as to improve the uniformity of the heat dissipation of the battery 4 and achieve better heat dissipation effect.
[0045] In one embodiment, the shelf body 1 further comprises a standby area, which is arranged between the first placement area 103 and the second placement area 104. No battery 4 is placed in the standby area, so as to increase the interval between the first placement area 103 and the second placement area 104, isolate the first placement area 103 and the second placement area 104, and further reduce the influence of the temperature of the battery 4 in the first placement area 103 on the temperature of the battery 4 in the second placement area 104.
[0046] Specifically, the process of placing the battery 4 in the standby library is continuous, and the battery 4 can be taken out from the storage location 101 after being placed for a preset time, and a new battery 4 is placed. The battery 4 placed in the first placement area 103 and the second placement area 104 can be a fixed model battery 4 in a fixed process, so that the temperature difference of the battery 4 placed in the same sub-storage location 1013 and the second sub-storage location 1014 is small, and the stability of the standby is improved.
[0047] In one embodiment, the air supply port 2 and the air return port 3 are respectively arranged at intervals along the length direction of the shelf body 1. By blowing air to one side of the shelf body 1 and returning air to the other side, the cooling of the battery 4 in the shelf body 1 is realized. The air supply port 2 and the air return port 3 are arranged at intervals along the length direction of the shelf body 1, which is beneficial to improve the heat dissipation effect of the battery 4 in the storage location 101 at different positions, ensure the temperature consistency of the battery 4, and further reduce the temperature fluctuation.
[0048] It should be noted that the number of shelf bodies 1 arranged in the standby library is not limited in the embodiments of the present application, and one, two or more than three shelf bodies 1 can be arranged according to the needs.
[0049] In one embodiment, as shown in Figure 2 , the shelf body 1 is arranged in multiple groups, each group of shelf bodies 1 comprises two shelf bodies 1 arranged at intervals, and the air supply port 2 is arranged between the two shelf bodies 1 in the same group. The air supply port 2 can blow cold air to the two shelf bodies 1 at the same time, so as to reduce the number of air supply ports 2 and reduce the use cost.
[0050] Further, in one embodiment, the air supply ports 2 of the two shelf bodies 1 of the adjacent groups are arranged oppositely, or the air return ports 3 are arranged oppositely, so as to form a one-way air flow, reduce the loss of cold air, and avoid the interference between the hot air and the cold air of the multiple shelf bodies 1, and further improve the heat dissipation effect.
[0051] In one embodiment, as shown in Figure 3 , the air return port 3 is arranged on the area between the one-third height and the one-half height of the inner wall of the standby library, so as to ensure that the cold air can pass through the storage location 101 at different heights of the shelf body 1 and then enter the air return port 3, and further improve the heat dissipation effect.
[0052] To realize the basic function of the static library, the static library in the embodiment can further include other necessary modules or components, such as a conveying device, a thermal management control system, etc. It should be noted that the other necessary modules or components included in the static library can be selected from any suitable existing configuration. To clearly and simply illustrate the technical solutions provided in the embodiment, the above-mentioned parts will not be described in detail here, and the accompanying drawings are also simplified accordingly. However, it should be understood that the utility model is not limited in scope by this.
[0053] Although the embodiments of the utility model have been described in conjunction with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A rest library, characterized in that, The static storage library is provided with a shelf body (1), an air supply port (2) facing one side of the shelf body (1), and an air return port (3) facing the other side of the shelf body (1), the air supply port (2) is located above the air return port (3), the shelf body (1) is provided with a plurality of rows of storage locations (101), each of the storage locations (101) encloses a closed containing space, and a front opening (1011) and a rear opening (1012) are formed in the first direction, the containing space is used for placing batteries (4), the front opening (1011) is located on the side of the shelf body (1) close to the air supply port (2), and the rear opening (1012) is located on the side of the shelf body (1) close to the air return port (3).
2. The static library of claim 1, wherein, Along the first direction, the storage location (101) is provided with a support (102) for placing the battery (4); Along the second direction, the opposite sides of the battery (4) leave a gap with the storage location (101).
3. The static library of claim 2, wherein, Along the third direction, the opposite sides of the battery (4) leave a gap with the storage location (101).
4. The static library of claim 1 or 3, wherein, Along the second direction, the shelf body (1) is divided into a first placement area (103) located at the upper end and a second placement area (104) located at the lower end, a plurality of rows of the storage locations (101) include a plurality of rows of first sub-storage locations (1013) located in the first placement area (103) and a plurality of rows of second sub-storage locations (1014) located in the second placement area (104), and the temperature of the battery (4) placed in the first sub-storage location (1013) is higher than the temperature of the battery (4) placed in the second sub-storage location (1014).
5. The static library of claim 4, wherein, The arrangement density of the plurality of rows of first sub-storage locations (1013) is less than the arrangement density of the plurality of rows of second sub-storage locations (1014).
6. The static library of claim 5, wherein, Along the third direction, the spacing between adjacent first sub-storage locations (1013) is greater than the spacing between adjacent second sub-storage locations (1014); And / or, along the second direction, the spacing between adjacent first sub-storage locations (1013) is greater than the spacing between adjacent second sub-storage locations (1014).
7. The static library of claim 4, wherein, Along the second direction, the plurality of rows of first sub-storage locations (1013) and the plurality of rows of second sub-storage locations (1014) are correspondingly distributed, and the number of rows of the first sub-storage locations (1013) is less than the number of rows of the second sub-storage locations (1014).
8. The static library of claim 7, wherein, The ratio of the number of rows of the first sub-storage locations (1013) to the number of rows of the second sub-storage locations (1014) is 1:9 to 3:
4.
9. The static library of claim 8, wherein, The ratio of the static duration of the battery (4) placed in the first sub-storage location (1013) to the static duration of the battery (4) placed in the second sub-storage location (1014) is 1:
4.
10. The static library of claim 8, wherein, The air supply port (2) and the air return port (3) are respectively provided with a plurality of intervals along the length direction of the shelf body (1).
11. The static library of claim 10, wherein, The shelf body (1) is provided with a plurality of groups, each group of the shelf body (1) includes two oppositely spaced shelf bodies (1), and the air supply port (2) is located between the two shelf bodies (1) in the same group.
12. The static library of claim 11, wherein, The air supply ports (2) of two said shelf bodies (1) of adjacent groups are oppositely arranged, or the air return ports (3) are oppositely arranged.
13. The static library of any one of claims 1 to 3, wherein, The air return ports (3) are arranged on the area between the one-third height and the one-half height of the inner wall of the static warehouse.