A temperature control device for a capacity testing environment with highly uniform temperature distribution

Abstract

This utility model relates to the technical field of battery production, and in particular to a temperature control device for a capacity testing environment with high uniformity temperature distribution. It includes a frame containing a capacity testing mechanism, a vertical air supply component, a horizontal air supply component, and an exhaust component. The capacity testing mechanism is used to place batteries and perform electrical performance tests on them. The vertical, horizontal, and exhaust components form an airflow cavity to house the capacity testing mechanism. The vertical air supply component continuously delivers air vertically to the batteries within the capacity testing mechanism. The horizontal air supply component delivers the air delivered by the vertical air supply component to the horizontal perimeter of the capacity testing mechanism. The exhaust component extracts the air delivered by the vertical and horizontal air supply components to the outside. This application solves the problems of poor gas flow and uneven temperature distribution within traditional battery capacity testing equipment by constructing a multi-dimensional collaborative airflow control structure.

Description

Technical Field

[0001] This utility model relates to the technical field of battery production, and in particular to a capacity testing environment temperature control device with high uniformity temperature distribution. Background Technology

[0002] During battery production, a series of tests are required to ensure battery quality and safety. Among these tests, capacity testing is a crucial step in verifying battery performance, ensuring battery quality upon leaving the factory, and guaranteeing safety during subsequent use. This step requires extremely high temperature stability of the testing environment. Only under a constant temperature environment can the accuracy of capacity test data be ensured, thereby reliably determining whether the battery meets design standards and usage requirements.

[0003] Currently, while conventional battery capacity testing equipment in the industry possesses basic temperature control functions, it lacks a systematic airflow guidance and circulation structure. This results in common defects such as poor internal gas flow, uneven temperature distribution, and the tendency for localized areas to become excessively hot or cold. Consequently, it cannot consistently and stably provide the constant temperature conditions required for capacity testing, leading to decreased testing accuracy, deviations in battery quality assessment, and potential safety risks to the battery's internal structure due to localized overheating. Therefore, designing a temperature control device for capacity testing environments that can achieve highly uniform temperature distribution is a technical problem that enterprise engineers urgently need to solve. Utility Model Content

[0004] To address the shortcomings of the prior art, this application provides a capacity testing environment temperature control device with highly uniform temperature distribution.

[0005] The above-mentioned inventive objective of this application is achieved through the following technical solutions:

[0006] A capacity testing environment temperature control device with highly uniform temperature distribution, comprising:

[0007] The frame contains a capacity testing mechanism, a vertical air supply assembly, a horizontal air supply assembly, and an exhaust assembly. The capacity testing mechanism is used to place batteries and perform electrical performance tests on them. The vertical air supply assembly, horizontal air supply assembly, and exhaust assembly form an airflow cavity for housing the capacity testing mechanism. The vertical air supply assembly is located at the bottom of the capacity testing mechanism and is used to continuously deliver air vertically to the batteries inside the capacity testing mechanism. The horizontal air supply assembly is used to deliver the air delivered by the vertical air supply assembly to the horizontal perimeter of the capacity testing mechanism. The exhaust assembly is used to extract the air delivered by the vertical and horizontal air supply assemblies to the outside.

[0008] Preferably, the frame is provided with a lifting component, which is connected to the capacity testing mechanism and is used to drive the capacity testing mechanism to move vertically within the airflow chamber.

[0009] Preferably, the vertical air supply assembly includes a plurality of first fans and a first fan mounting sheet metal. The plurality of first fans are evenly distributed and fixedly installed on the first fan mounting sheet metal. The first fan mounting sheet metal is fixedly installed on the frame and covers the bottom of the capacity testing mechanism. The plurality of first fans are all used to blow air into the airflow cavity.

[0010] Preferably, the horizontal air supply assembly includes at least four second fan mounting plates, each of which is fixedly mounted on the frame and has several second fans fixedly mounted on it. The several second fans are evenly distributed on the second fan mounting plates and are used to blow air into the airflow cavity. All the second fan mounting plates are connected in sequence and surround to form a convection zone for covering the periphery of the capacity testing mechanism.

[0011] Preferably, the exhaust assembly includes at least four third fan mounting plates, each of which is fixedly mounted on the frame and has several third fans fixedly mounted on it. The several third fans are evenly distributed on the third fan mounting plates and are all used to exhaust air from the airflow cavity. All the third fan mounting plates are located above the horizontal air supply assembly and are connected in sequence to form an exhaust zone.

[0012] Preferably, the capacity testing environment temperature control device with high uniformity temperature distribution further includes a middle layer air supply component, which is disposed between the horizontal air supply component and the exhaust component and is used to accelerate the air delivery of the vertical air supply component and the horizontal air supply component.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting a capacity testing mechanism inside the frame, and combining it with a vertical air supply component, a horizontal air supply component, and an exhaust component, constructs a systematic multi-dimensional collaborative airflow control structure. This solves the problems of poor internal gas flow and uneven temperature distribution caused by the lack of systematic airflow guidance and circulation in traditional battery capacity testing equipment. Through the coordination of multi-directional air supply and exhaust, the airflow at the four corners inside the equipment is eliminated, ensuring that air circulates evenly in all directions within the capacity testing mechanism, achieving a highly uniform temperature distribution, and continuously and stably providing the constant temperature environment required for capacity testing. At the same time, it avoids the impact of local overheating or overcooling on the internal structure of the battery, significantly improving the accuracy of battery capacity testing and reducing the deviation in battery quality judgment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure after removing parts of the second fan mounting sheet metal and the third fan mounting sheet metal, as well as part of the rack (in order to observe the capacity testing mechanism);

[0015] Figure 2This is another overall structural diagram of the frame after removing parts of the second fan mounting sheet metal and the third fan mounting sheet metal (in order to observe the vertical air supply assembly and the middle air supply assembly);

[0016] Figure 3 This is a partial structural diagram of this application;

[0017] Figure 4 This is a schematic diagram of the horizontal air supply component in this application.

[0018] Reference numerals: 1. Frame; 2. Capacity testing mechanism; 21. Battery support frame; 22. Probe testing module; 3. Vertical air supply assembly; 31. First fan; 32. First fan mounting sheet metal; 4. Horizontal air supply assembly; 41. Second fan; 42. Second fan mounting sheet metal; 5. Exhaust assembly; 51. Third fan; 52. Third fan mounting sheet metal; 6. Airflow cavity; 7. Middle layer air supply assembly; 8. Fan mesh. Detailed Implementation

[0019] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of this application, including various details to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0020] It should be noted that the terms "first," "second," etc., used in this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with this disclosure.

[0021] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.

[0022] The following is a reference appendix. Figure 1 To be continued Figure 4 This application describes a capacity testing environment temperature control device with highly uniform temperature distribution.

[0023] Reference Figures 1 to 4The capacity testing environment temperature control device with high uniformity temperature distribution includes a frame 1, which is equipped with a capacity testing mechanism 2, a vertical air supply component 3, a horizontal air supply component 4, and an exhaust component 5. The capacity testing mechanism 2 is used to place batteries and perform electrical performance tests on them. The vertical air supply component 3, the horizontal air supply component 4, and the exhaust component 5 are arranged to form an airflow cavity 6 for housing the capacity testing mechanism 2. The vertical air supply component 3 is located at the bottom of the capacity testing mechanism 2 and is used to continuously deliver air vertically to the batteries inside the capacity testing mechanism 2. The horizontal air supply component 4 is used to deliver the air delivered by the vertical air supply component 3 to the horizontal perimeter of the capacity testing mechanism 2. The exhaust component 5 is used to extract the air delivered by the vertical air supply component 3 and the horizontal air supply component 4 to the outside.

[0024] Specifically, by setting up a capacity testing mechanism 2 inside the frame 1, and forming an airflow cavity 6 by a vertical air supply component 3, a horizontal air supply component 4, and an exhaust component 5, the vertical air supply component 3 delivers air vertically to the battery from the bottom, the horizontal air supply component 4 guides the airflow horizontally around the battery, and the exhaust component 5 promptly extracts and exhausts air, forming a full-coverage airflow circulation. This solves the problem of poor gas flow in traditional battery capacity testing equipment, ensures uniform temperature distribution within the capacity testing mechanism 2, provides a stable and constant environment for battery capacity testing, and improves testing accuracy.

[0025] It should be noted that the capacity testing mechanism 2 can be any commercially available battery capacity testing equipment, and there are no restrictions here. It typically includes a battery carrier 21 for carrying the battery, a probe testing module 22 for docking the battery, and an auxiliary positioning structure. The batteries are arranged in the battery carrier 21, and airflow channels are reserved between adjacent batteries and in the battery carrier 21 to cooperate with the air circulation in the airflow chamber 6. The probe testing module 22 is electrically connected to the battery to collect key performance parameters such as the battery's voltage, capacity, and internal resistance in real time to complete the capacity test. This is common knowledge to those skilled in the art and will not be elaborated here.

[0026] Furthermore, the frame 1 is equipped with a lifting component (not shown in the figure). The lifting component is connected to the capacity testing mechanism 2 and is used to drive the capacity testing mechanism 2 to move vertically within the airflow cavity 6. By driving the capacity testing mechanism 2 to move vertically through the lifting component, its position within the airflow cavity 6 can be adjusted according to actual needs, avoiding the capacity testing mechanism 2 from blocking the airflow path and optimizing the airflow path. For example, when the capacity testing mechanism 2 is working, it can be lifted a certain distance by the lifting component so that the air delivery path of the horizontal air supply component 4 can cover the bottom of the capacity testing mechanism 2, and work together with the vertical air supply component 3 to deliver air to various positions of the battery.

[0027] It should be noted that the lifting assembly can be a conventional cylinder drive assembly, electric push rod assembly, or lead screw slide assembly, etc. All of the above components can be detachably or fixedly connected to the capacity testing mechanism 2 to achieve vertical movement drive of the capacity testing mechanism 2. There are no restrictions here.

[0028] Preferably, the vertical air supply assembly 3 includes a plurality of first fans 31 and a first fan 31 mounting plate. The plurality of first fans 31 are evenly distributed and fixedly installed on the first fan 31 mounting plate. The first fan 31 mounting plate is fixedly installed on the frame 1 and covers the bottom of the capacity testing mechanism 2. The plurality of first fans 31 are used to blow air into the airflow cavity 6. In this way, by fixing the plurality of evenly distributed first fans 31 to the first fan 31 mounting plate and covering the bottom of the capacity testing mechanism 2, air can be evenly supplied from the bottom into the airflow cavity 6, ensuring that the bottom air is stably and evenly delivered to the battery area and enhancing the temperature consistency in the vertical direction.

[0029] Preferably, the horizontal air supply assembly 4 includes at least four second fan 41 mounting plates. Each second fan 41 mounting plate is fixedly mounted on the frame 1 and has several second fans 41 fixedly mounted on it. The several second fans 41 are evenly distributed on the second fan 41 mounting plates and are all used to blow air into the airflow cavity 6. All the second fan 41 mounting plates are connected in sequence and form a convection zone for covering the periphery of the capacity testing mechanism 2. In this way, by forming a convection zone covering the periphery of the capacity testing mechanism 2 through multiple second fan 41 mounting plates, and by the second fans 41 on each plate being evenly distributed and blowing air into the cavity, the air delivered by the vertical air supply assembly 3 can be effectively introduced into the horizontal periphery, thereby working with the vertical air supply assembly 3 to eliminate the airflow corners around the battery and improve the temperature uniformity in the horizontal direction.

[0030] Preferably, the exhaust assembly 5 includes at least four third fan 51 mounting plates. Each third fan 51 mounting plate is fixedly mounted to the frame 1 and has several third fans 51 fixedly mounted on it. The several third fans 51 are evenly distributed on the third fan 51 mounting plates and are all used to exhaust air from the airflow chamber 6. All the third fan 51 mounting plates are located above the horizontal air supply assembly 4 and are connected in sequence to form an exhaust zone. By setting multiple third fan 51 mounting plates above the horizontal air supply assembly 4 and connecting the plates in sequence to form an exhaust zone, the third fans 51... The fans 51 are evenly distributed on each sheet metal and draw air from the airflow cavity 6, thereby creating an airflow circulation path that works in conjunction with the horizontal air supply component 4. During operation, the upper exhaust area can form a side-supply and upward-extraction coordinated airflow mode with the lower horizontal air supply component 4. The evenly distributed third fans 51 can fully cover the area above the perimeter of the capacity testing mechanism 2, avoiding the accumulation of hot air caused by insufficient local exhaust force, effectively guiding the airflow from the horizontal air supply component 4 to the exhaust area, accelerating the air circulation in the airflow cavity 6, and significantly improving the uniformity of temperature distribution in the airflow cavity 6.

[0031] As a preferred embodiment, the capacity test environment temperature control device with high uniformity temperature distribution also includes a middle layer air supply component 7. The middle layer air supply component 7 is disposed between the horizontal air supply component 4 and the exhaust component 5 and is used to accelerate the air delivery of the vertical air supply component 3 and the horizontal air supply component 4, so as to accelerate the air delivery efficiency in the vertical and horizontal directions, promote the rapid mixing of upper and lower layers of air, and improve the uniformity of the overall temperature distribution in the airflow cavity 6.

[0032] It should be noted that the structure of the middle-layer air supply assembly 7 is the same as that of the horizontal air supply assembly 4. That is, in this embodiment, the middle-layer air supply assembly 7 may also include at least four second fan 41 mounting plates. Each second fan 41 mounting plate is fixedly mounted on the frame 1 and has several second fans 41 fixedly mounted on it. The several second fans 41 are evenly distributed on the second fan 41 mounting plates and are all used to blow air into the airflow cavity 6. Unlike the horizontal air supply assembly 4, the two have different preset height positions. The middle-layer air supply assembly 7 needs to be set at a preset height position between the horizontal air supply assembly 4 and the exhaust assembly 5. During operation, it accelerates the upward flow of the air delivered by the horizontal air supply assembly 4 and the vertical air supply assembly 3 by uniformly supplying air.

[0033] The outer sides of the first fan 31, the second fan 41 and the third fan 51 are each equipped with a fan mesh 8 to block external foreign objects, such as dust and debris, from entering the fan interior and the airflow cavity 6, so as to prevent foreign objects from affecting the stability of the fan operation and to prevent foreign objects from contacting the battery under test and interfering with the test process.

[0034] The implementation principle of the capacity testing environment temperature control device with high uniformity temperature distribution in this application embodiment is as follows:

[0035] This application utilizes an airflow cavity 6 formed by the vertical air supply component 3, the horizontal air supply component 4, the middle air supply component 7, and the exhaust component 5 within the internal components of the rack 1 to house the capacity testing mechanism 2 within the airflow cavity 6, thereby forming a full-coverage airflow circulation system through the synergistic action of multiple components.

[0036] Specifically, during operation, the lifting component drives the capacity testing mechanism 2 to move vertically to the appropriate height within the airflow cavity 6, reserving reasonable space for airflow. The vertical air supply component 3 continuously and evenly supplies air to the battery from the bottom of the capacity testing mechanism 2 in a vertical direction, serving as the basic airflow source. The horizontal air supply component 4, through its convection zone, guides the air supplied from the bottom to the horizontal perimeter of the capacity testing mechanism 2, eliminating the four corners of the side airflow. The middle air supply component 7 further accelerates the airflow between the horizontal air supply component 4 and the exhaust component 5, promoting the mixing of air between the upper and lower layers. The exhaust component 5 evenly extracts air above the horizontal air supply component 4 through the enclosed exhaust zone, thus forming a continuous airflow path with each air supply component: lower supply, side guidance, middle acceleration, and upper extraction. Through this multi-directional coordinated airflow control mechanism, the air circulates efficiently and is evenly distributed within the airflow cavity 6, avoiding local temperature deviations and providing a highly uniform constant temperature environment for the battery within the capacity testing mechanism 2, ensuring the accuracy and stability of the capacity test.

[0037] It should be noted that this application is compatible with existing standardized multi-channel trays, including but not limited to conventional 16-channel, 32-channel, and 64-channel specifications. Through its multi-dimensional collaborative airflow circulation system, it provides a uniform constant temperature environment for the multi-channel tray placed in the capacity testing unit 2, ensuring that the batteries in each channel of the tray can complete capacity testing under consistent temperature conditions. Especially for extremely multi-channel trays that are difficult to control effectively with traditional equipment, such as 196-channel and 256-channel trays, due to the large number and dense distribution of batteries they carry, traditional equipment is prone to large temperature deviations in each channel due to airflow obstruction and poor circulation. However, this application, through the uniform airflow at the bottom of the vertical air supply component 3, the circumferential airflow guidance of the horizontal air supply component 4 and the middle air supply component 7, and the efficient exhaust at the top of the exhaust component 5, can form a complete airflow circulation covering the entire tray without dead angles. This can effectively eliminate local temperature differences caused by the dense structure of extremely multi-channel trays, solve the problem of constant temperature control in extremely multi-channel scenarios of existing equipment, and further expand the applicability of the device.

[0038] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A high uniformity temperature distribution volume test environmental temperature control apparatus, characterized by, include: The frame (1) is equipped with a capacity testing mechanism (2), a vertical air supply assembly (3), a horizontal air supply assembly (4), and an exhaust assembly (5). The capacity testing mechanism (2) is used to place the battery and perform electrical performance testing on the battery. The vertical air supply assembly (3), the horizontal air supply assembly (4), and the exhaust assembly (5) are arranged to form an airflow cavity (6) for the capacity testing mechanism (2). The vertical air supply assembly (3) is located at the bottom of the capacity testing mechanism (2) and is used to continuously deliver air vertically to the battery in the capacity testing mechanism (2). The horizontal air supply assembly (4) is used to deliver the air delivered by the vertical air supply assembly (3) to the horizontal perimeter of the capacity testing mechanism (2). The exhaust assembly (5) is used to extract the air delivered by the vertical air supply assembly (3) and the horizontal air supply assembly (4) to the outside.

2. A high uniformity temperature distribution volume test environmental temperature control apparatus as in claim 1, wherein, The frame (1) is equipped with a lifting component, which is connected to the capacity testing mechanism (2) and is used to drive the capacity testing mechanism (2) to move vertically within the airflow cavity (6).

3. A high uniformity temperature distribution volume test environmental temperature control apparatus as in claim 1, wherein, The vertical air supply assembly (3) includes several first fans (31) and a first fan (31) mounting sheet metal. The several first fans (31) are evenly distributed and fixedly installed on the first fan (31) mounting sheet metal. The first fan (31) mounting sheet metal is fixedly installed on the frame (1) and covers the bottom of the capacity testing mechanism (2). The several first fans (31) are all used to blow air into the airflow cavity (6).

4. The high uniformity temperature distribution volumetric test environment temperature control apparatus of claim 1, wherein, The horizontal air supply assembly (4) includes at least four second fan (41) mounting plates. Each second fan (41) mounting plate is fixedly mounted on the frame (1) and has several second fans (41) fixedly mounted on it. The several second fans (41) are evenly distributed on the second fan (41) mounting plates and are used to blow air into the airflow cavity (6). All the second fan (41) mounting plates are connected in sequence and surround to form a convection zone for covering the periphery of the capacity testing mechanism (2).

5. A high uniformity temperature distribution volume test environmental temperature control apparatus as in claim 1 wherein, The exhaust assembly (5) includes at least four third fan (51) mounting plates. Each third fan (51) mounting plate is fixedly mounted on the frame (1) and has several third fans (51) fixedly mounted on it. The several third fans (51) are evenly distributed on the third fan (51) mounting plates and are all used to exhaust air from the airflow cavity (6). All the third fan (51) mounting plates are located above the horizontal air supply assembly (4) and are connected in sequence to form an exhaust zone.

6. A high uniformity temperature distribution volumetric test environment temperature control apparatus as in claim 1, wherein, It also includes a middle-layer air supply assembly (7), which is disposed between the horizontal air supply assembly (4) and the exhaust assembly (5) and is used to accelerate the air delivery of the vertical air supply assembly (3) and the horizontal air supply assembly (4).

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