Testing equipment for energy storage devices

Abstract

This application provides a testing device for an energy storage device, which can improve the accuracy of dust tests at a lower cost. The testing device includes: a test chamber for housing the energy storage device; a first air duct for delivering airflow, located near the top of the test chamber; a second air duct located near the bottom of the test chamber; and a blower connected to the first and second air ducts. The blower is configured to disperse dust deposited inside the test chamber through the first and second air ducts during the testing of the energy storage device.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to a testing device for an energy storage device. Background Technology

[0002] A dust test chamber, also known as a sand and dust test chamber or dustproof test chamber, is an artificial testing device used to simulate natural sandstorm climates to test the sealing performance and dustproof and corrosion-resistant capabilities of product casings. As the size of dust test chambers increases, problems such as uneven dust distribution and insufficient local concentration can easily occur during testing, causing the test conditions to deviate from actual working conditions and making it difficult to achieve effective and reliable testing objectives.

[0003] Therefore, improving the accuracy of sandstorm tests is an urgent problem to be solved. Utility Model Content

[0004] This application provides a testing device for an energy storage device, which can improve the accuracy of sandstorm tests at a lower cost.

[0005] In a first aspect, a testing device for an energy storage device is provided, comprising: a test chamber for placing the energy storage device; a first air duct for conveying airflow, disposed in a region near the top of the test chamber; a second air duct disposed in a region near the bottom of the test chamber; and an air blower connected to the first air duct and the second air duct, wherein the air blower is configured to disperse dust deposited inside the test chamber through the first air duct and the second air duct during the testing of the energy storage device.

[0006] In this embodiment, a multi-pipe air-blowing system located at different positions disperses dust inside the test chamber. On one hand, this allows for dust circulation during the test, effectively saving dust and reducing test costs. On the other hand, placing the first air-blowing pipe near the top of the test chamber allows the blower to disperse dust deposited on the surface of the energy storage device, reducing the possibility of dust accumulation affecting test results. The second air-blowing pipe is located near the bottom of the test chamber, allowing the blower to disperse dust settled at the bottom. In other words, this configuration ensures that regardless of the complexity of the energy storage device's shape, the dispersed dust can cover as many surfaces as possible, increasing the comprehensiveness of the test, making the test conditions closer to reality, and ultimately improving the accuracy of the test.

[0007] In some possible implementations, the first air duct is connected to the second air duct. This allows for a relatively simple method of simultaneously blowing air through both the first and second air ducts, ensuring that the surface of the energy storage device is simultaneously exposed to the rising dust, effectively improving the comprehensiveness of the test.

[0008] In some possible implementations, a first air outlet is provided on the side of the first air duct near the interior of the test chamber, and a second air outlet is provided on the side of the second air duct near the interior of the test chamber. The air blower disperses the dust through the first air outlet and the second air outlet. The first air outlet can swing in different directions, and / or the second air outlet can swing in different directions.

[0009] This technical solution sets the first air outlet to swing in different directions, and / or sets the second air outlet to swing in different directions, so that the blower can disperse the dust deposited in different directions through the swinging first air outlet and / or second air outlet. This not only allows more dust to be circulated, but also further increases the possibility that the dust can be evenly wrapped around the entire energy storage device.

[0010] In some possible implementations, the system may also include: a dust storage device for storing the dust; and a dust suction pipe connected to the dust storage device, the dust suction pipe being configured to suck up the dust in the test chamber after the test is completed and to transport the sucked-up dust to the dust storage device.

[0011] This technical solution, by setting up a dust storage device and a dust suction pipe connected to the dust storage device, allows the dust suction pipe to suck up the dust in the test chamber after the dust test is completed and transport the sucked-up dust to the dust storage device. In this way, the complete recycling and reuse of dust can be achieved, reducing dust waste and facilitating the rapid preparation of subsequent tests.

[0012] In some possible implementations, the suction pipe is positioned between the first blowing pipe and the second blowing pipe. Positioning the suction pipe between the first and second blowing pipes allows dust to be more easily drawn into the suction pipe, thus enabling more dust to be recovered and reused.

[0013] In some possible implementations, the suction duct has multiple suction inlets on the side closest to the interior of the test chamber, and the suction duct is configured to suck up dust from the test chamber through the multiple suction inlets.

[0014] This technical solution configures multiple dust inlets, allowing more dust to be drawn into the dust collection pipe at the same time, reducing dust collection time and improving dust collection efficiency and dust recovery efficiency.

[0015] In some possible implementations, the system may also include: a plurality of dust blowing ducts, each of which is arranged along the height of the test chamber; and a dust blowing fan located in an area near the bottom of the test chamber, the dust blowing fan being connected to the plurality of dust blowing ducts and configured to blow the dust into the interior of the test chamber through the dust blowing ducts for a sand and dust test.

[0016] This technical solution, by setting up multiple dust-blowing pipes and fans, allows more dust to be blown into the test chamber, ensuring that the dust surrounds the entire energy storage device, regardless of its complex shape. Furthermore, the multiple dust-blowing pipes generate a complex airflow field within the test space. The airflow from different pipes interferes with and superimposes, simulating the turbulence, vortices, and diffusion effects of natural sandstorms. The test dust diffuses throughout the space, filling the entire test chamber. This means the energy storage device is not only affected by the deposition of the test dust but also by the erosion and infiltration of dynamic sandstorms, making the test conditions closer to reality and further improving the accuracy of sandstorm tests.

[0017] In some possible implementations, a collection device connected to the dust blower is also included, wherein the collection device has an opening on one side facing the top of the test chamber, the collection device is configured to collect the dust through the opening, and the dust blower is configured to blow the dust collected by the collection device back into the test chamber through the dust blowing pipe during the test.

[0018] This technical solution, by setting up a collection device, allows the dust blower to blow the dust that falls into the collection device back into the test chamber. In this way, through continuous dust circulation and replenishment, the dust concentration in each area of ​​the test chamber can be maintained within the narrow fluctuation range required by the standard for a long time, which greatly improves the reliability and repeatability of the test data.

[0019] In some possible implementations, the collection device is located in an area near the bottom of the test chamber.

[0020] Since dust typically settles from top to bottom, this technical solution places the collection device near the bottom of the test chamber, allowing it to collect more dust. This more dust can then be transported back to the top of the test chamber and ejected, thus creating a continuous and stable internal dust cycle. This ensures that the dust concentration during the test meets the standard requirements. Attached Figure Description

[0021] Figure 1 A schematic diagram of a test apparatus for an energy storage device according to an embodiment of this application is shown.

[0022] Figure 2 A schematic diagram of a test apparatus for another energy storage device according to an embodiment of this application is shown.

[0023] Figure 3 A schematic diagram of a test apparatus for another energy storage device according to an embodiment of this application is shown.

[0024] Figure 4 A schematic side view of a test apparatus for an energy storage device according to an embodiment of this application is shown.

[0025] Figure 5 A schematic side view of a test apparatus for another energy storage device according to an embodiment of this application is shown.

[0026] Figure 6 A schematic diagram of a test apparatus for another energy storage device according to an embodiment of this application is shown.

[0027] Figure 7 A schematic diagram of a test apparatus for another energy storage device according to an embodiment of this application is shown.

[0028] Figure 8 A schematic diagram of a test apparatus for another energy storage device according to an embodiment of this application is shown.

[0029] Figure 9 A schematic side view of a test apparatus for another energy device according to an embodiment of this application is shown.

[0030] Figure 10 A schematic side view of a test apparatus for another energy device according to an embodiment of this application is shown.

[0031] Figure label:

[0032] 100-Test equipment; 101-Test chamber; 1011-First side wall; 1012-Second side wall; 102-First air blowing duct; 1021-First air blowing outlet; 103-Second air blowing duct; 1031-Second air blowing outlet; 104-Air blowing fan; 105-Dust storage device; 106-Dust suction duct; 1061-Dust suction inlet; 107-Dust blowing duct; 1071-Dust blowing outlet; 108-Dust blowing fan; 109-Collection device; 200-Energy storage device. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, rather than to describe a specific order or hierarchy.

[0035] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0037] In this application, "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0038] A dust test chamber, also known as a sand and dust test chamber or dustproof test chamber, is an artificial testing device used to simulate natural sandstorm climates to test the sealing performance and dustproof and corrosion-resistant capabilities of product casings. The general workflow of a dust test chamber is as follows: First, place the energy storage device inside the chamber. If testing for IP6X, a vacuum pump pipeline needs to be connected. Then, set the intensity, such as "blowing dust for 2 hours, stopping for 1 hour." Next, start the equipment; the fan blows up dust, creating a uniform sand and dust environment. Finally, after the test, remove the energy storage device, check for dust accumulation inside, and assess its functionality.

[0039] As the size of the test chamber increases, the traditional "single-point" or "localized" dust release method will lead to uneven dust distribution and difficulty in maintaining concentration due to the increased space. This phenomenon is known as the "scale effect," which seriously restricts the development of dust test chambers towards larger and walk-in specifications.

[0040] In a small dust test chamber, a single fan can easily establish stable vertical laminar flow. However, in a walk-in space large enough to accommodate a car or a large server rack, maintaining a continuous vertical laminar flow from ceiling to floor requires overcoming enormous air resistance. This necessitates the use of extremely powerful fan systems with extremely high air pressure, making energy consumption and noise unacceptable, and disrupting dust uniformity. Furthermore, large energy storage devices themselves constitute a significant obstacle, potentially disrupting carefully designed vertical airflow and creating large eddies and dead zones behind and below them. This results in dust concentrations and wind velocities in these areas falling far below standard requirements, rendering the test invalid.

[0041] In view of this, this application provides a testing device for an energy storage device, which includes a test chamber, a first air duct, a second air duct, and a blower. The test chamber houses the energy storage device, while the first and second air ducts, used for airflow, are positioned at different locations within the test chamber. The blower is connected to both the first and second air ducts and is configured to disperse dust deposited inside the test chamber during testing of the energy storage device. This testing device utilizes a multi-duct airflow system positioned at different locations to disperse dust within the test chamber. On one hand, this allows for dust circulation during testing, effectively saving dust and reducing testing costs. On the other hand, it can evenly coat more areas of the energy storage device's surface with the dispersed dust, regardless of the device's complex shape, improving the comprehensiveness of the test, making the test conditions closer to reality, and thus improving the accuracy of the test.

[0042] Test equipment can be, for example, a dust test chamber, which can be a small dust test chamber or a walk-in dust test chamber. Among them, the small dust test chamber can be used to test small energy storage devices, while the walk-in dust test chamber can be used to test large energy storage devices. The walk-in dust test chamber has a larger space, allowing operators to walk into the chamber to place, wire, and debug the energy storage device, greatly improving the convenience of testing large, bulky, or complex energy storage devices.

[0043] Energy storage devices can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage devices can store electrical energy as needed and output it when appropriate. For example, energy storage devices can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours.

[0044] Energy storage devices can be of any shape and size. For example, energy storage devices can be battery devices, energy storage containers, energy storage cabinets, energy storage power converter systems (PCS), etc.

[0045] In addition to energy storage devices, the testing equipment can also conduct sand and dust tests on other devices, such as cars and communication base stations. For example, a car can have an uneven body, and a communication base station can have gaps.

[0046] Figure 1 A schematic diagram of a test apparatus 100 for an energy storage device according to an embodiment of this application is shown. Figure 1 As shown, the testing equipment 100 includes a test chamber 101, a first air duct 102, a second air duct 103, and a blower 104. The test chamber 101 houses the energy storage device 200. The first and second air ducts 102 and 103 are used to transport airflow and are respectively located at different positions within the test chamber 101. The blower 104 is connected to the first and second air ducts 102 and 103. The blower 104 is configured to disperse dust deposited inside the test chamber 101 through the first and second air ducts 102 and 103 during the testing of the energy storage device 200.

[0047] In this embodiment, a multi-pipe air-blowing system located at different positions disperses dust inside the test chamber 101. On one hand, this allows for dust circulation during the test, effectively saving dust and reducing test costs. On the other hand, it can evenly coat more areas of the energy storage device 200 surface with the dispersed dust. Regardless of the complexity of the energy storage device 200's shape, more areas are exposed to dust, improving the comprehensiveness of the test and making the test conditions closer to reality, thereby increasing the accuracy of the test.

[0048] Dust can be, but is not limited to, talc, certain types of quartz sand, silicon carbide, alumina, etc.

[0049] The first air duct 102 and the second air duct 103 may have the same size and different shape. For example, the first air duct 102 and the second air duct 103 may both be cuboids or cylinders, or the first air duct 102 may be a cuboid and the second air duct 103 may be wavy or irregular in shape.

[0050] like Figure 1 As shown, the first air duct 102 and the second air duct 103 can both be arranged along the length direction (x-direction) of the housing. In this case, the lengths of the first air duct 102 and the second air duct 103 can be the same, or the length of the first air duct 102 can be greater than the length of the second air duct 103, or the length of the second air duct 103 can be greater than the length of the first air duct 102. For example, the first air duct 102 can be arranged parallel to the length direction of the housing, and the second air duct 103 can be arranged at an angle relative to the length direction, i.e., there is an angle between it and the length direction. Alternatively, the first air duct 102 and the second air duct 103 can both be arranged along the height direction (z-direction) of the housing.

[0051] The first air duct 102 and the second air duct 103 are located in the test chamber 101, which can be understood as follows: Figure 1 As shown, the first air duct 102 and the second air duct 103 are attached to the wall of the test chamber 101. Optionally, the first air duct 102 and the second air duct 103 can be attached to the wall of the test chamber 101 in various ways, such as by welding, by mechanical means, or by adhesive.

[0052] The first air duct 102 and the second air duct 103 are disposed at different locations in the test chamber 101. Specifically, they can be disposed on different walls of the test chamber 101. For example, the first air duct 102 can be disposed on a side wall of the test chamber 101, and the second air duct 103 can be disposed on the top wall of the test chamber 101. The top wall is the wall of the test chamber 101 perpendicular to its height, and when the testing equipment 100 is in use, the top wall is located above the test chamber 101.

[0053] It should be noted that in this application embodiment, "up" means the direction opposite to the direction of gravity, and "down" means the direction in the same direction as the direction of gravity.

[0054] Alternatively, continue to refer to Figure 1 The first air duct 102 and the second air duct 103 are located at different positions in the test chamber 101. They can be located on the same wall of the test chamber 101 but at different positions on that wall. For example, the first air duct 102 and the second air duct 103 can both be located on the side wall of the test chamber 101.

[0055] In order to fill the entire space of the test chamber 101 with dust, in some embodiments, such as Figure 2 As shown, the test chamber 101 includes a first side wall 1011 and a second side wall 1012 arranged opposite to each other. The size of the first side wall 1011 and the second side wall 1012 is larger than the other side walls of the test chamber 101. The first side wall 1011 and the second side wall 1012 are each provided with a first air blowing pipe 102 and a second air blowing pipe 103.

[0056] This technical solution involves placing the first air duct 102 and the second air duct 103 on a larger side wall, which increases the size of the first air duct 102 and the second air duct 103, thereby improving the efficiency of dust dispersion inside the test chamber 101. Furthermore, by installing the first air duct 102 and the second air duct 103 on both the first side wall 1011 and the second side wall 1012, the dust can be completely filled into the test chamber 101, further improving the accuracy of the test.

[0057] The first air duct 102 disposed on the first side wall 1011 and the first air duct 102 disposed on the second side wall 1012 can be symmetrical or asymmetrical. Similarly, the second air duct 103 disposed on the first side wall 1011 and the second air duct 103 disposed on the second side wall 1012 can be symmetrical or asymmetrical.

[0058] For a wall, if a first air blowing duct 102 and a second air blowing duct 103 are provided on the wall, the distance between the first air blowing duct 102 and the second air blowing duct 103 can be as large as possible in order to disperse as much dust as possible.

[0059] Therefore, in some embodiments, such as Figure 1 and Figure 2 As shown, the first air duct 102 can be located in the area near the top of the test chamber 101, and the second air duct 103 can be located in the area near the bottom of the test chamber 101.

[0060] This technical solution places the first air duct 102 near the top of the experimental chamber. This allows the blower 104 to disperse dust deposited on the surface of the energy storage device 200 through the first air duct 102, reducing the possibility of dust accumulation on the surface of the energy storage device 200 affecting test results. The second air duct 103 is placed near the bottom of the experimental chamber 101. This allows the blower 104 to disperse dust settled at the bottom of the experimental chamber 101 through the second air duct 103. This not only improves the uniformity of circulation but also makes the test conditions closer to reality.

[0061] Of course, in addition to the top and bottom areas of the test chamber 101, the first air duct 102 and the second air duct 103 can also be set in other areas of the same wall, as long as the first air duct 102 and the second air duct 103 are set in different positions.

[0062] In order to make the dust more evenly cover the entire energy storage device 200, the first air blowing pipe 102 and the second air blowing pipe 103 can be used to disperse the dust at the same time.

[0063] In some embodiments, the control system can control the first blowing duct 102 and the second blowing duct 103 to simultaneously perform dust dispersion.

[0064] In some embodiments, such as Figure 2 As shown, the first air duct 102 and the second air duct 103 can be connected together. In this way, the purpose of the blower 104 blowing air through the first air duct 102 and the second air duct 103 can be achieved in a relatively simple way, so that the surface of the energy storage device 200 is simultaneously attacked by the dust raised, which effectively improves the comprehensiveness of the test.

[0065] As an example, the first air duct 102 can be directly connected to the second air duct 103. For instance, one end of the first air duct 102 can be directly connected to one end of the second air duct 103.

[0066] As another example, the first air duct 102 can be connected together by a connecting device.

[0067] In some embodiments, such as Figure 3 As shown, the first air duct 102 has a first air outlet 1021 on the side near the interior of the test chamber 101, and the second air duct 103 has a second air outlet 1031 on the side near the interior of the test chamber 101. The blower 104 disperses dust through the first air outlet 1021 and the second air outlet 1031.

[0068] The first air outlet 1021 and the second air outlet 1031 can be implemented in various ways. For example, the first air outlet 1021 and the second air outlet 1031 can be, but are not limited to, cylindrical structures, perforated structures, etc. For instance, the first air outlet 1021 and the second air outlet 1031 can be louvers or mesh.

[0069] Optionally, the number of first air outlets 1021 and the number of second air outlets 1031 can be one. This reduces the manufacturing complexity of the testing equipment 100.

[0070] Optionally, continue to refer to Figure 3 The number of first air outlets 1021 is multiple, and / or the number of second air outlets 1031 is multiple.

[0071] This technical solution sets the number of first air outlets 1021 to multiple, and / or sets the number of second air outlets 1031 to multiple. In this way, more dust can be blown up through the first air outlets 1021 and the second air outlets 1031 at the same time, so that more dust can diffuse inside the test chamber 101 at the same time, which can effectively improve the testing efficiency.

[0072] If there are multiple first air outlets 1021, the size and shape of the multiple first air outlets 1021 can be the same or different. Similarly, if there are multiple second air outlets 1031, the size and shape of the multiple second air outlets 1031 can be the same or different.

[0073] The number, shape, and size of the first air outlet 1021 can be the same as or different from the number, shape, and size of the second air outlet 1031.

[0074] In some embodiments, the first air outlet 1021 and the second air outlet 1031 may be fixed.

[0075] In other embodiments, the first air outlet 1021 may oscillate in different directions, and / or the second air outlet 1031 may oscillate in different directions.

[0076] This technical solution sets the first air outlet 1021 to swing in different directions, and / or sets the second air outlet 1031 to swing in different directions, so that the blower 104 can disperse the dust deposited in different directions through the swinging first air outlet 1021 and / or second air outlet 1031. This not only allows more dust to be circulated, but also further increases the possibility that the dust can be evenly wrapped around the entire energy storage device 200.

[0077] The first air outlet 1021 and the second air outlet 1031 can swing randomly in different directions, or they can swing in a predetermined direction sequence.

[0078] The first air outlet 1021 and the second air outlet 1031 can swing within the range of 0°-360°. The swing frequency, swing direction and other parameters of the first air outlet 1021 and the second air outlet 1031 can be the same or different.

[0079] It should be noted that, in addition to the first air duct 102 and the second air duct 103, the embodiments of this application may also include more air ducts.

[0080] The number of hair dryers 104 can be one or more. For example, there can be two, with one hair dryer 104 connected to the first air duct 102 and the other hair dryer 104 connected to the second air duct 103. Alternatively, there can be more hair dryers 104.

[0081] The blower 104 can continuously disperse dust in the test chamber 101, or it can disperse dust in the test chamber 101 at preset intervals, or it can disperse dust in the test chamber 101 randomly.

[0082] The blower 104 can be set in any position, as long as it can be connected to the first blower duct 102 and the second blower duct 103.

[0083] Furthermore, in some embodiments, such as Figures 4-6 As shown, the test equipment 100 may also include a dust storage device 105 and a dust suction pipe 106. The dust storage device 105 is used to store dust, and the dust suction pipe 106 is connected to the dust storage device 105. The dust suction pipe 106 is configured to suck up the dust in the test chamber 101 after the dust test is completed and transport the sucked-up dust to the dust storage device 105.

[0084] This technical solution, by setting up a dust storage device 105 and a dust suction pipe connected to the dust storage device 105, allows the dust suction pipe 106 to suck up the dust in the test chamber 101 after the dust test is completed, and transport the sucked-up dust to the dust storage device 105. In this way, the complete recycling and reuse of dust can be achieved, reducing dust waste and facilitating the rapid preparation of subsequent tests.

[0085] The dust storage device 105 can be funnel-shaped or other shapes.

[0086] The dust storage device 105 can be installed on any one wall of the test chamber 101. Optionally, if the first air duct 102 and the second air duct 103 are on the first side wall 1011 and the second side wall 1012, the dust storage device 105 can be installed on other side walls of the test chamber 101 to allow more space for installation.

[0087] The dust suction pipe 106 can be installed on the same wall as the dust storage device 105, which facilitates connection to the dust storage device 105. Alternatively, the dust suction pipe 106 can be installed on the same wall as the first air blowing pipe 102 and the second air blowing pipe 103, such as dust suction pipes 106 being installed on both the first side wall 1011 and the second side wall 1012.

[0088] When the dust suction pipe 106 is provided on the first side wall 1011 and the second side wall 1012, the dust suction pipe 106 can be provided along the length direction parallel to the test chamber 101, or there can be a certain angle between it and the length direction.

[0089] When the suction duct 106, the first blowing duct 102, and the second blowing duct 103 are mounted on the same wall, assuming that the first blowing duct 102 is higher than the second blowing duct 103 in the height direction, the suction duct 106 can be positioned higher than the first blowing duct 102 or lower than the second blowing duct 103. Alternatively, refer to... Figures 4-6 Alternatively, the suction pipe 106 can be positioned between the first blowing pipe 102 and the second blowing pipe 103. Positioning the suction pipe 106 between the first blowing pipe 102 and the second blowing pipe 103 makes it easier for dust to be drawn into the suction pipe 106, thereby enabling more dust to be recycled and reused.

[0090] Optionally, the testing equipment 100 may also include a dust extraction fan for drawing dust from the test chamber 101 into the dust extraction duct 106.

[0091] Optionally, the blower 104 can be configured to disperse the dust in the test chamber 101 after the dust test is completed, so that the dust enters the dust suction pipe 106.

[0092] This application does not specifically limit the size, shape, or material of the vacuum pipe 106. For example, the length of the vacuum pipe 106 can be the same as the length of the test chamber 101, and the shape can be a cuboid, etc.

[0093] In some embodiments, a dust inlet may be provided on the side of the dust suction pipe 106 near the interior of the test chamber 101, and the dust suction pipe 106 is configured to suck up dust in the test chamber through the dust suction inlet.

[0094] In other embodiments, such as Figure 7 As shown, the suction duct 106 can be provided with multiple suction inlets 1061 on the side near the interior of the test chamber 101. The suction duct 106 is configured to suck up dust from the test chamber 101 through these multiple suction inlets 1061. This technical solution, by configuring multiple suction inlets 1061, allows more dust to be sucked into the suction duct 106 at the same time, reducing suction time and improving suction efficiency and dust recovery efficiency.

[0095] The suction inlet 1061 can be implemented in a variety of ways, such as including but not limited to a cylindrical structure or a perforated structure.

[0096] The size, shape, and distance between the multiple suction inlets 1061 can be the same or different, and this application embodiment does not limit this.

[0097] In some embodiments, such as Figures 8-10 As shown, the testing equipment 100 may also include a plurality of dust blowing pipes 107 and a plurality of dust blowing fans 108. Each of the plurality of dust blowing pipes 107 is arranged along the height direction of the test chamber 101, and the plurality of dust blowing fans 108 are arranged in the area near the bottom of the test chamber 101. Each dust blowing fan 108 is connected to the corresponding dust blowing pipe 107 in the plurality of dust blowing pipes 107. The dust blowing fan 108 is configured to blow dust into the interior of the test chamber 101 through the dust blowing pipes 107 for dust testing.

[0098] This technical solution, by setting up multiple dust-blowing pipes 107 and dust-blowing fans 108, allows more dust to be blown into the test chamber 101, so that the dust can surround the entire energy storage device 200, regardless of the complexity of the device's shape. Furthermore, by setting up multiple dust-blowing pipes 107, a complex airflow field can be generated within the test space. The airflow from different pipes interferes with and superimposes, simulating the turbulence, vortices, and diffusion effects in natural sandstorms. The test dust diffuses throughout the space, filling the entire test chamber 101, so that the energy storage device 200 is not only affected by the deposition of test dust but also by the erosion and infiltration of dynamic sandstorms. The test conditions are closer to reality, thereby further improving the accuracy of sandstorm tests.

[0099] The number of dust blowers 108 can be one or more, and each of the multiple dust blowers 108 is connected to a corresponding dust blowing pipe 107.

[0100] The dust blower 108 can be installed in the bottom area of ​​the test chamber 101 or in other locations.

[0101] The other end of the dust blower 108 can be connected to the dust storage device 105. Thus, after the dust test begins, the test dust in the dust storage device 105 can be blown into the test chamber 101 through the dust blowing pipe 107 and the dust blower 108, allowing the test to proceed normally. Optionally, the dust blower 108 can be connected to the dust storage device 105 via a connecting pipe.

[0102] Continue to refer to Figure 8 At least one dust outlet 1071 is provided on the side of the dust blowing pipe 107 near the interior of the test chamber 101, and the test dust in the dust blowing pipe 107 enters the interior of the test chamber 101 through the at least one dust outlet 1071.

[0103] Optionally, at least one dust outlet 1071 can be located in an area near the top of the test chamber 101. In other words, the end of the dust blowing pipe 107 that is not connected to the dust blowing fan 108 can be located in an area near the top of the test chamber 101. In this way, dust can be transported to the top of the test chamber 101 via the dust blowing pipe 107, and then evenly dispersed and naturally settled through the dust outlet 1071, thereby forming a simulated sandstorm environment.

[0104] Furthermore, in some embodiments, such as Figure 8 and Figure 9As shown, the test equipment 100 may also include a collection device 109, which can be connected to a dust blower 108. The collection device 109 has an opening on the side facing the top of the test chamber 101. The collection device 109 is configured to collect dust through the opening. The dust blower 108 is configured to blow the dust collected by the collection device 109 back into the test chamber 101 during the dust test.

[0105] This technical solution, by setting up a collection device 109, allows the dust blower 108 to blow the dust that falls into the collection device 109 back into the test chamber 101. In this way, through continuous dust circulation and replenishment, the dust concentration in each area of ​​the test chamber 101 can be maintained within the narrow fluctuation range required by the standard for a long time, which greatly improves the reliability and repeatability of the test data.

[0106] The collection device 109 can be installed on the first side wall 1011 and the second side wall 1012, and can be installed along the length of the test chamber 101. In order to collect as much dust as possible, the length of the collection device 109 can be the same as the length of the test chamber 101, or it can be slightly smaller than the length of the test chamber 101.

[0107] The number of collecting devices 109 can be one or more. When there are multiple collecting devices 109, adjacent collecting devices 109 can be in contact or separated by a certain distance.

[0108] To facilitate the dust blower 108 in blowing the dust that falls into the collection device 109 back into the test chamber 101, the collection device 109 can optionally be funnel-shaped. Of course, in addition to the funnel shape, the collection device 109 can also be other shapes.

[0109] The collection device 109 can be set in the middle area of ​​the wall, or, in order to allow more dust to fall into the collection device 109 through the opening on the collection device 109, the collection device 109 can be set in the area near the bottom of the test chamber 101.

[0110] Since dust typically settles from top to bottom, this technical solution places the collection device 109 in the area near the bottom of the test chamber 101, allowing the collection device 109 to collect more dust. More dust can then be transported back to the top of the test chamber 101 and ejected, thus forming a continuous and stable internal dust cycle, ensuring that the dust concentration during the test meets the standard requirements.

[0111] The following is combined Figures 8-10 The structure and operation of a specific testing device 100 according to an embodiment of this application are described below. Optionally, the testing device 100 may be a sand and dust test chamber.

[0112] Dust is temporarily stored in a dust storage device 105 via a dedicated feeding trolley and a pipeline system. After the dust test begins, the dust is transported to the top of the test chamber 101 via a dust blowing pipe 107 and a dust blowing fan 108, and then evenly dispersed and naturally settled from the dust blowing outlet 1071, creating a simulated dust environment. A collection device 109 collects the settled dust, which is then sucked in by a suction pipe 106 and again discharged to the top of the test chamber 101 via dust blowing, thus forming a continuous and stable internal dust circulation, ensuring that the dust concentration during the test meets the standard requirements. During the test, the first blowing pipe 102 located above can cause dust deposited on the surface of the energy storage device 200 to fall off, reducing the possibility of accumulation affecting the test results. The second blowing pipe 103 located below can re-spread the dust settled at the bottom of the test chamber 101, further improving the circulation uniformity and efficiency.

[0113] After the test, the second air duct 103 lifts the dust at the bottom of the test chamber 101, suspending it in the air. Then, the dust suction duct 106 sucks in the suspended dust and transports it back to the dust storage device 105 for storage, realizing the complete recovery and reuse of dust, thereby reducing material waste and facilitating rapid preparation for subsequent tests.

[0114] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A test apparatus for an energy storage device, characterized by, include: The test chamber is used to house the energy storage device; The first air duct, used to deliver air, is located in an area near the top of the test chamber; The second air duct is located in the area near the bottom of the test chamber; A blower is connected to the first blower duct and the second blower duct. The blower is configured to disperse dust deposited inside the test chamber through the first blower duct and the second blower duct during the testing of the energy storage device.

2. The testing equipment according to claim 1, characterized in that, The first air duct is connected to the second air duct.

3. The testing equipment according to claim 1 or 2, characterized in that, The first air blowing duct has a first air blowing outlet on the side closest to the interior of the test chamber, and the second air blowing duct has a second air blowing outlet on the side closest to the interior of the test chamber. The air blowing fan disperses the dust through the first air blowing outlet and the second air blowing outlet. The first air outlet can swing in different directions, and / or the second air outlet can swing in different directions.

4. The testing equipment according to claim 1 or 2, characterized in that, Also includes: A dust storage device for storing the dust; A dust suction pipe is connected to the dust storage device. The dust suction pipe is configured to suck up the dust in the test chamber after the test is completed and transport the sucked-up dust to the dust storage device.

5. The testing equipment according to claim 4, characterized in that, The dust extraction pipe is located between the first blower pipe and the second blower pipe.

6. The testing equipment according to claim 4, characterized in that, The dust suction pipe has multiple dust suction inlets on one side near the interior of the test chamber, and the dust suction pipe is configured to suck up the dust in the test chamber through the multiple dust suction inlets.

7. The testing equipment according to claim 1 or 2, characterized in that, Also includes: Multiple dust blowing pipes, each of which is arranged along the height direction of the test chamber; A dust blower is located in an area near the bottom of the test chamber. The dust blower is connected to the plurality of dust blowing pipes and is configured to blow the dust into the interior of the test chamber through the dust blowing pipes for sand and dust testing.

8. The testing equipment according to claim 7, characterized in that, Also includes: A collection device is connected to the dust blower. The collection device has an opening on one side facing the top of the test chamber. The collection device is configured to collect the dust through the opening. The dust blower is configured to blow the dust collected by the collection device back into the test chamber through the dust blowing pipe during the test.

9. The testing equipment according to claim 8, characterized in that, The collection device is located in an area near the bottom of the test chamber.

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