Air outlet structure and test box

Abstract

The utility model discloses an air outlet structure and a test box, and belongs to the technical field of test equipment. The air outlet structure is arranged in a test chamber, used for placing a to-be-tested piece, of the box body, the air outlet structure comprises an air outlet plate and an air shielding plate, the air outlet plate is arranged on the inner side of the top end of the test chamber, and a plurality of air outlet holes are uniformly formed in the air outlet plate; the wind shielding plate is attached to the wind outlet plate and close to the to-be-tested piece, a plurality of wind shielding holes are evenly formed in the wind shielding plate, and the wind shielding plate can move in the first direction or the second direction relative to the wind outlet plate so that the wind shielding holes can be aligned to or staggered from the wind outlet holes. According to the air outlet structure, the air outlet plate and the air shielding plate which are matched with each other are arranged, so that the temperature uniformity of each position in the test chamber is relatively good, the test result of the to-be-tested piece in the test chamber is relatively accurate, and the cost is relatively low.

Description

Technical Field

[0001] The utility model relates to the technical field of test equipment, in particular to an air outlet structure and a test box. Background Art

[0002] For the test chamber used for power battery testing, due to the higher testing needs of power batteries, there are more stringent requirements for the temperature distribution in the test chamber. Therefore, it is necessary to adjust the air volume distribution in the test chamber so that the temperature distribution in different areas of the test chamber is more uniform, thereby ensuring the accuracy of the test chamber for power batteries.

[0003] At present, in order to adjust the air volume of the air outlet in the test chamber, a frequency-modulated fan is usually used, but the price of the frequency-modulated fan is relatively expensive and the cost is relatively high.

[0004] In view of the above problems, air outlet structures and test chambers are urgently needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an air outlet structure and a test box, which have low cost and can make the temperature uniformity at various positions in the test room better, so as to ensure that the test results of the test pieces in the test room are more accurate.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The air outlet structure is arranged in the test chamber of the box body for placing the test piece, and includes:

[0008] An air outlet plate is arranged on the inner side of the top of the test chamber, and a plurality of air outlet holes are evenly arranged on the air outlet plate;

[0009] A wind shield is attached to the air outlet plate and close to the test piece, and a plurality of wind shield holes are evenly arranged on the wind shield. The wind shield can move relative to the air outlet plate along a first direction or a second direction so that the wind shield holes are aligned with or staggered from the air outlet holes, and the first direction is perpendicular to the second direction.

[0010] As an optional solution, an air-conditioning room separated from the test room is further formed in the box, and the aperture of the air outlet and / or the aperture of the wind shielding hole gradually decreases in the first direction and away from the air-conditioning room.

[0011] As an optional solution, the wind shield is located in a test area in the test chamber, the test piece is placed in the test area, and the position and size of the wind shield hole are respectively the same as the position and size of the air outlet hole.

[0012] As an optional solution, the air outlet structure further includes:

[0013] A driving assembly, wherein the fixed end of the driving assembly is disposed on the box body, the driving end of the driving assembly is connected to the wind shield, and the driving assembly is used to drive the wind shield to move relative to the air outlet plate along the first direction or the second direction.

[0014] As an optional solution, one of the air outlet plate and the wind shield plate is provided with a waist-shaped hole, and the other is provided with a fixing hole. The length of the waist-shaped hole extends along the first direction or the second direction, and a fastener connects the aligned waist-shaped hole and the fixing hole.

[0015] As an optional solution, a plurality of waist-shaped holes and a plurality of fixing holes are provided respectively.

[0016] As an optional solution, the air outlet structure further includes:

[0017] An air regulating member, one end of which is detachably mounted on the air outlet plate, and the other end of which is capable of adjusting the angle relative to the air outlet plate.

[0018] As an optional solution, the air regulating member includes:

[0019] A mounting plate and a folding plate, wherein the mounting plate can be detachably mounted to the air outlet plate, one end of the folding plate is connected to the mounting plate, the other end of the folding plate can be folded relative to the mounting plate, and each of the mounting plates is respectively connected with a plurality of folding plates with gaps therebetween.

[0020] As an optional solution, a plurality of the air regulating members are provided, and the test piece is located inside the plurality of the air regulating members.

[0021] The test box includes a box body and the air outlet structure as described above, wherein the test room and the air-conditioning room are formed in the box body, and the test box also includes a temperature adjustment component and a fan located in the air-conditioning room, wherein the temperature adjustment component is used to adjust the temperature of the air in the air-conditioning room, and the fan is configured to blow the air in the air-conditioning room into the test room through the air outlet.

[0022] The beneficial effects of the utility model are:

[0023] An air outlet plate is arranged at the inner side of the top of the test chamber of the box body, and a plurality of air outlet holes are evenly arranged on the air outlet plate; at the same time, a wind shield plate is attached to the air outlet plate and arranged close to the test piece, and a plurality of wind shield holes are evenly arranged on the wind shield plate, and the wind shield plate is moved relative to the air outlet plate along the first direction or the second direction respectively, so that the wind shield holes can be aligned with the air outlet holes, so that the air can be blown into the test chamber through the wind shield holes and the air outlet holes, or the wind shield holes are staggered from the air outlet holes, so that the wind shield plate can partially block or completely block multiple air outlet holes, thereby controlling the air passing through The air volume flowing from the air outlet into the test room is adjusted from 0 to 100% by the air outlet plate and the wind shield plate. The wind shield plate and the air outlet plate used in conjunction with each other have low cost and can adjust the air volume at various positions in the test room to ensure that the air volume at various positions in the test room is relatively uniform, thereby making the temperature uniformity at various positions in the test room better, avoiding excessive temperature differences between the various test pieces in the test room, and thus ensuring that the test results of the test pieces in the test room are relatively accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the test box (excluding the box door) provided by the utility model. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of the test box provided by the utility model (excluding the box door and part of the box structure) Figure 2 ;

[0026] Figure 3 It is a schematic diagram of the exploded structure of the air outlet structure provided by the utility model;

[0027] Figure 4 yes Figure 3 A schematic diagram of the local enlarged structure at D in the middle;

[0028] Figure 5 yes Figure 3 A schematic diagram of the local enlarged structure at E in the middle;

[0029] Figure 6 It is a schematic diagram of the assembly structure between the air outlet plate and the adjusting member provided by the utility model.

[0030] Description of reference numerals:

[0031] 10-box; 101-test room; 102-air conditioning room; 103-first ventilation duct; 104-second ventilation duct; 105-third ventilation duct; 106-fan; 107-pressure balance member; 108-heater; 109-evaporator; 110-test hole; 111-drain pipe; 112-partition;

[0032] 1-air outlet plate; 11-air outlet hole; 12-waist-shaped hole;

[0033] 2- wind shield; 21- wind shield hole; 22- fixing hole;

[0034] 3-air regulating member; 31-mounting plate; 32-folding plate. DETAILED DESCRIPTION

[0035] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0036] Any feature disclosed in this specification, unless otherwise stated, may be replaced by other equivalent or alternative features having similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features. Throughout the specification, the same reference numerals indicate the same elements.

[0037] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present invention are further explained below with reference to the accompanying drawings and through specific implementation methods.

[0038] This embodiment proposes an air outlet structure and a test box including the air outlet structure, such as Figure 1 and Figure 2 As shown, the test box also includes a box body 10, a temperature adjustment component and a fan 106; wherein a test chamber 101 and an air conditioning chamber 102 are formed in the box body 10, an air outlet structure is arranged in the test chamber 101, the test chamber 101 is used to place the test piece, the temperature adjustment component and the fan 106 are arranged in the air conditioning chamber 102 respectively, the temperature adjustment component is used to adjust the temperature of the air in the air conditioning chamber 102, and the fan 106 is configured to blow the air in the air conditioning chamber 102 adjusted by the temperature adjustment component into the test chamber 101 through the air outlet structure, so as to perform a high temperature or low temperature test on the test piece in the test chamber 101. The test piece is a power battery.

[0039] Specifically, Figure 1 and Figure 3 As shown, the air outlet structure includes an air outlet plate 1 and an air shielding plate 2; wherein the air outlet plate 1 is fixedly arranged on the inner side of the top of the test chamber 101, and a plurality of air outlet holes 11 are evenly arranged on the air outlet plate 1; the air shielding plate 2 is horizontally attached to the air outlet plate 1 and arranged close to the test piece, and a plurality of air shielding holes 21 are evenly arranged on the air shielding plate 2, and the air shielding plate 2 can move along the first direction or the second direction relative to the air outlet plate 1, so that the air shielding holes 21 are aligned with or staggered from the air outlet holes 11. The first direction is perpendicular to the second direction, and the first direction is the length direction of the box body 10. The first direction is specifically as follows: Figures 1 to 3As shown by arrow A in FIG. 1 , the second direction is the width direction of the box body 10. The second direction is specifically as follows Figures 1 to 3 As shown by arrow B in FIG.

[0040] Compared with the prior art, the air outlet structure in this embodiment has changed the structure for adjusting the air volume and added a wind shield 2; an air outlet plate 1 is arranged on the inner side of the top end of the test chamber 101 of the box body 10, and a plurality of air outlet holes 11 are evenly arranged on the air outlet plate 1; at the same time, the wind shield 2 is attached to the air outlet plate 1 and arranged close to the test piece, and a plurality of air shield holes 21 are evenly arranged on the air shield 2, and the wind shield 2 is moved relative to the air outlet plate 1 in the first direction or the second direction, so that the air shield hole 21 can be aligned with the air outlet hole 11, so that the air can be blown into the test chamber 101 through the air shield hole 21 and the air outlet hole 11, or the air shield hole 21 is staggered from the air outlet hole 11, so that the air shield 2 can be partially The plurality of air outlet holes 11 are partially blocked or completely blocked, so that the air volume flowing into the test chamber 101 through the air outlet holes 11 can be controlled, and the air outlet plate 1 and the wind shield plate 2 can adjust the overall air volume from 0-100%; the wind shield plate 2 and the air outlet plate 1 used in coordination with each other have low cost, and can adjust the air volume at various positions in the test chamber 101, so as to ensure that the air volume at various positions in the test chamber 101 is relatively uniform, so that the temperature uniformity at various positions in the test chamber 101 is better, and excessive temperature difference between the various test pieces in the test chamber 101 is avoided, thereby ensuring that the test results of the test pieces in the test chamber 101 are relatively accurate.

[0041] Furthermore, the wind shield 2 is located in the test area in the test chamber 101, and the test piece is placed in the test area, that is, the bottom plate in the test chamber 101 has a test area within a range, and when testing, the test piece needs to be placed in the test area to ensure the test effect of the test piece. The specific division position and range of the test area need to be determined according to the actual test conditions, and the above-mentioned need to ensure the temperature uniformity in the test chamber 101 specifically refers to ensuring the temperature uniformity in the test area.

[0042] Specifically, Figure 1 and Figure 3As shown, the position and size of the wind shield 21 are respectively the same as the position and size of the air outlet 11, so that the processing of the wind shield plate 2 and the air outlet plate 1 is relatively simple and convenient, and the alignment or staggering between the wind shield 21 and the air outlet 11 is relatively easy and convenient. In other embodiments, the position and size of the wind shield 21 can also be different from the position and size of the air outlet 11, which is not specifically limited here, as long as it can be ensured that the wind shield 21 can be aligned with or staggered from the air outlet 11 by moving the wind shield plate 2. Among them, the specific number and aperture of the air outlet 11 and the wind shield 21 need to be determined according to the air volume and wind speed requirements in the test area, which is not specifically limited here.

[0043] Furthermore, the air outlet structure further includes a driving assembly (not shown in the figure), the fixed end of the driving assembly is provided on the box body 10, the driving end of the driving assembly is connected to the wind shield plate 2, and the driving assembly is used to drive the wind shield plate 2 to move in the first direction or the second direction relative to the air outlet plate 1. In other embodiments, the wind shield plate 2 can also be pushed manually to move the wind shield plate 2 in the first direction or the second direction relative to the air outlet plate 1.

[0044] Specifically, the driving assembly includes a lead screw and a slider, the slider is fixedly connected to the wind shield 2, the slider is threadedly sleeved on the lead screw, the lead screw is rotatably arranged on the box 10, and the rotation of the lead screw can drive the slider to move on the lead screw, so as to drive the wind shield 2 to move linearly in the first direction or the second direction; a guide rail can also be arranged in the box 10, so that the slider can slide along the guide rail, thereby ensuring the guidance and reliability of the wind shield 2 moving in the first direction or the second direction. Among them, the lead screw can be driven to rotate by a motor or manually, which is not specifically limited here. In other embodiments, the driving assembly can also include a linear cylinder, which is used to drive the wind shield 2 to move linearly in the first direction or the second direction, and the specific structure of the driving assembly is not limited here.

[0045] It is worth noting that when the wind shield 2 needs to move linearly along the first direction relative to the air outlet plate 1, the length of the lead screw is extended along the first direction so that the wind shield 2 can be driven to move along the first direction by the lead screw; when the wind shield 2 needs to move linearly along the second direction relative to the air outlet plate 1, the length of the lead screw is extended along the second direction so that the wind shield 2 can be driven to move along the second direction by the lead screw; that is, in order to simplify the entire structure and make the movement of the wind shield 2 simpler, in actual work, the wind shield 2 only needs to move in one direction, either the first direction or the second direction, relative to the air outlet plate 1, to ensure that the wind shield hole 21 is aligned with or staggered from the air outlet hole 11. Of course, in other embodiments, in order to better align the wind shield hole 21 with or stagger the air outlet hole 11, in actual work, the wind shield 2 can also be moved in both the first direction and the second direction relative to the air outlet plate 1, which is not specifically limited here.

[0046] When the wind shield plate 2 moves to a preset position relative to the air outlet plate 1, in order to prevent the air outlet plate 1 and the wind shield plate 2 from being separated from each other, in this embodiment, Figures 3 to 6 As shown, a waist-shaped hole 12 is provided on one of the air outlet plate 1 and the wind shield plate 2, and a fixing hole 22 is provided on the other. The length of the waist-shaped hole 12 extends along the first direction or the second direction. The fastener connects the aligned waist-shaped hole 12 and the fixing hole 22, so that the wind shield plate 2 at a preset position can be fixed to the air outlet plate 1, thereby ensuring the air outlet stability. In this embodiment, the fastener is specifically a bolt and a nut matching the bolt; the waist-shaped hole 12 is provided on the air outlet plate 1, and the fixing hole 22 is provided on the wind shield plate 2.

[0047] It is worth noting that the preset position mentioned above may specifically refer to the position where the wind shield 21 is completely aligned with the air outlet 11, or it may be the position where the wind shield 2 partially blocks the air outlet 11. The preset position is not limited here and needs to be determined based on the actual air volume and wind speed requirements.

[0048] In this embodiment, since in the actual working process, it is only necessary for the wind shielding plate 2 to move relative to the wind outlet plate 1 along the second direction, Figure 3 , Figure 4 and Figure 6 As shown, the length of the waist-shaped hole 12 on the air outlet plate 1 extends along the second direction to ensure that the fixing hole 22 on the wind shielding plate 2 can be aligned with the waist-shaped hole 12 after the wind shielding plate 2 moves to the preset position.

[0049] It is worth mentioning that in other embodiments, a waist-shaped hole 12 whose length extends along the first direction can be provided on the air outlet plate 1, so that when the wind shield plate 2 moves along the first direction relative to the air outlet plate 1, it can be ensured that the fixing hole 22 on the wind shield plate 2 can be aligned with the waist-shaped hole 12 extending in the first direction.

[0050] Specifically, if Figure 3 and Figure 6 As shown, there are multiple waist-shaped holes 12 and fixing holes 22, respectively. On the one hand, it can ensure that multiple fasteners are connected to the aligned waist-shaped holes 12 and fixing holes 22, ensuring that the connection between the wind shield 2 and the air outlet plate 1 is relatively tight; on the other hand, it can ensure that when the wind shield 2 moves to each preset position, at least one fixing hole 22 can be aligned with one waist-shaped hole 12, thereby ensuring that the wind shield 2 can be fixedly connected to the air outlet plate 1 at each preset position. In this embodiment, there are six waist-shaped holes 12 and six fixing holes 22, respectively. In other embodiments, the waist-shaped holes 12 and the fixing holes 22 can be less than six or more than six, respectively, which is not specifically limited here.

[0051] Specifically, there is no limitation on the setting position of the waist-shaped hole 12 on the air outlet plate 1 and the specific setting position of the fixing hole 22 on the wind shield plate 2, as long as it can be ensured that when the wind shield plate 2 moves to each preset position, at least one fixing hole 22 is aligned with one waist-shaped hole 12, thereby ensuring that the wind shield plate 2 and the air outlet plate 1 will not separate.

[0052] Furthermore, if Figure 1 and Figure 2 As shown, a partition 112 is also provided in the box body 10, and the partition 112 is used to separate the test chamber 101 from the air-conditioning chamber 102; the air outlet plate 1 is fixedly provided on the partition 112, so that a first ventilation passage 103 is formed between the air outlet plate 1 and the inner side of the top end of the test chamber 101; and a second ventilation passage 104 is formed between the partition 112 and the bottom plate in the test chamber 101, and a third ventilation passage 105 is formed at the top end in the air-conditioning chamber 102, the third ventilation passage 105 is connected to the first ventilation passage 103, and the second ventilation passage 104 connects the test chamber 101 and the air-conditioning chamber 102; the air in the air-conditioning chamber 102 flows back to the air-conditioning chamber 102 through the third ventilation passage 105, the first ventilation passage 103, the air outlet 11, the test chamber 101 and the second ventilation passage 104 in sequence, so that the air circulates in the box body 10. The specific circulation flow path of the air in the box body 10 is as follows: Figure 2 As shown by arrow C in FIG.

[0053] However, due to the resistance of wind direction, the air volume at the position close to the air-conditioning room 102 in the first ventilation duct 103 is smaller, while the air volume at the position far from the air-conditioning room 102 is larger, resulting in uneven air volume entering the air outlets 11 at different positions through the first ventilation duct 103, which can easily lead to uneven air volume entering the test area.

[0054] In order to solve the above problems, in this embodiment, Figure 3 and Figure 6 As shown, in the first direction and in the direction away from the air-conditioning room 102, the aperture of the air outlet 11 and / or the aperture of the wind shielding hole 21 gradually decreases, so that the air volume of the air outlet 11 can be controlled by the gradually decreasing aperture, ensuring that the air volume entering the air outlet 11 at different positions from the first ventilation duct 103 is relatively balanced, thereby ensuring that the temperature in the test area is more uniform. In this embodiment, the aperture of the air outlet 11 and the aperture of the wind shielding hole 21 are gradually reduced. In other embodiments, only the aperture of the air outlet 11 can be gradually reduced, which is not specifically limited here.

[0055] It is worth noting that the gradual decrease in aperture mentioned above may refer to a gradual decrease according to a certain rule, or may refer to an irregular decrease, as long as the overall decreasing trend is ensured.

[0056] The test pieces may be placed at various positions in the test area, or at any position in the test area, that is, the specific placement positions of the test pieces in the test area are different; at the same time, since the test pieces are power batteries, the power batteries themselves will be powered on for testing during testing, thereby generating heat; however, since the current air outlet angle and air outlet direction of the air outlet 11 remain unchanged, it is easy to cause large temperature differences for the test pieces at different positions, and there will be a waste of resources due to the continued outlet of air at positions where no test pieces are placed; moreover, the currently used frequency-modulated fans can only adjust the air volume of the overall air outlet 11, and cannot solve the problem of uneven regional air volume distribution.

[0057] In order to solve the above problems, Figures 1 to 3 , Figure 6 As shown, the air outlet structure in this embodiment also includes an air regulating member 3, one end of which is detachably mounted on the air outlet plate 1, and the air from the air outlet 11 can flow to the test piece under the blocking effect of the air regulating member 3, and the other end of the air regulating member 3 can be adjusted relative to the air outlet plate 1, so that the angle between the air outlet plate 1 and the air regulating member 3 can be adjusted, thereby adjusting the air outlet angle and air outlet direction at the air outlet 11.

[0058] By setting the air regulating member 3, the air outlet angle and air outlet direction of the air outlet 11 can be adjusted according to the specific placement position of the test piece, so that the temperature of the periphery of the test piece is more uniform, and resources can be saved at the same time, so that the entire air outlet structure can be adapted to the testing of test pieces in various different placement positions, and has good versatility and applicability; and, by folding the air regulating member 3, the regional air volume of the periphery of the test piece can be accurately adjusted to ensure that the air volume distribution of the peripheral area of ​​the test piece is uniform, so as to better adjust the temperature uniformity in the test area. Among them, the angle between the air regulating member 3 and the air outlet plate 1 needs to be set according to the temperature requirements of different positions in the test area, which is not limited here.

[0059] Furthermore, if Figure 1 and Figure 6 As shown, the air regulating member 3 includes a mounting plate 31 and a folding plate 32. The mounting plate 31 can be detachably mounted on the air outlet plate 1. One end of the folding plate 32 is fixedly connected to the mounting plate 31. The other end of the folding plate 32 can be folded relative to the mounting plate 31 to adjust the angle between the folding plate 32 and the air outlet plate 1.

[0060] By detachably mounting the mounting plate 31 on the air outlet plate 1, on the one hand, the air regulating member 3 can be easily and conveniently disassembled and assembled on the air outlet plate 1, and the mounting plate 31 and the folding plate 32 can be prevented from interfering with the movement of the wind shielding plate 2; on the other hand, the mounting position of the mounting plate 31 on the air outlet plate 1 can be adjusted according to the specific requirements of the air outlet angle and the air outlet direction, so as to more accurately adjust the regional air volume around the test piece. In this embodiment, the mounting plate 31 can be detachably mounted on the air outlet plate 1 by screws.

[0061] Specifically, Figure 1 and Figure 6 As shown, each mounting plate 31 is connected to a plurality of folding plates 32 with gaps therebetween, that is, each folding plate 32 on the same mounting plate 31 can be folded and adjusted individually, and the folding angles of each other do not affect each other. In this embodiment, the mounting plate 31 and the folding plate 32 are an integrally formed structure, and six folding plates 32 are connected to one mounting plate 31.

[0062] By providing a plurality of folding plates 32, the air outlet angle and the air outlet direction can be adjusted by folding a single or multiple folding plates 32, so that the adjustment range of the air outlet angle and the air outlet direction is more precise, and the adjustment flexibility of the adjustment member can be better.

[0063] Specifically, in order to better adjust the air outlet angle, such as Figure 1 and Figure 6 As shown, there are multiple air regulating members 3, and the test piece is located inside the multiple air regulating members 3, so that the angle adjustment function of multiple adjustment plates can be used to increase the adjustment range of the air outlet angle and better adapt to the test pieces at multiple different positions.

[0064] It is worth noting that, in this embodiment, in order to save costs, Figure 1 and Figure 6 As shown, three air regulating pieces 3 are provided, and the three air regulating pieces 3 are circumferentially arranged on the air outlet plate 1, that is, no air regulating piece 3 is provided on the side of the box body 10 close to the box door; on the one hand, since the box door itself has a resisting effect, the air flowing to the box door can be resisted back to the test area; on the other hand, since the air volume flowing into the box door side is small, therefore, not providing the air regulating piece 3 on the side of the box body 10 close to the box door will not have a great impact on the temperature uniformity in the test area.

[0065] The air outlet structure in this embodiment is provided with a movable wind shield plate 2 so that the wind shield holes 21 on the wind shield plate 2 can be aligned or staggered with the air outlet holes 11 on the air outlet plate 1, so that the air outlet volume of the air outlet holes 11 at various positions can be adjusted as a whole; the aperture diameter of the air outlet holes 11 and / or the wind shield holes 21 is then set to be variable in diameter so as to be able to adjust the air outlet volume of the air outlet holes 11 at various positions; at the same time, an air regulating member 3 is provided, which can adjust the air outlet angle and the air outlet direction so as to be able to adjust the regional air volume around the test piece; thereby, the temperature uniformity in the test area can be adjusted by the overall air outlet volume, air outlet angle and regional air outlet volume, thereby ensuring that the temperature at various positions in the test area is relatively uniform, thereby ensuring that the test accuracy of each test piece in the test area is better.

[0066] In this embodiment, by adopting the above-mentioned air outlet structure and setting the air regulating component 3, the temperature of the test pieces in the test area can be controlled at 20°C-45°C, and the problem of the temperature of the test pieces in the test area being too high or too low will not occur; and it can ensure that the temperature difference between the various test pieces in the test area does not exceed 5°C, avoiding a large temperature difference between the various test pieces.

[0067] Specifically, Figure 2 As shown, the temperature regulating component includes a heater 108 and an evaporator 109. Along the air flow direction, the heater 108 is located downstream of the evaporator 109, and the fan 106 is located downstream of the heater 108. The setting of the heater 108 can adjust the temperature of the air evaporated by the evaporator 109, thereby enabling air of different temperatures to enter the test chamber 101 from the air-conditioning chamber 102 to meet the requirements of the test pieces for different test temperatures.

[0068] like Figure 2 As shown, the test box in this embodiment also includes a refrigeration unit, a pressure balance component 107 and a humidifier. The refrigeration unit is connected to the evaporator 109 of the temperature adjustment component. The refrigerant carrying cold energy of the refrigeration unit is transported to the evaporator 109 in the air-conditioning room 102 through a pipeline for evaporation, thereby reducing the temperature of the air in the air-conditioning room 102 so that a low-temperature test can be performed on the test piece to be tested; the pressure balance component 107 is used to control the pressure in the test room 101 to avoid interference with the electrical performance test of the test piece due to excessive or insufficient pressure in the test room 101; the humidifier can provide humidified air for the air-conditioning room 102, so that the fan 106 draws the humidified air into the test room 101 for humidity testing.

[0069] It is worth mentioning that the focus of the present invention is on the improvement of the air outlet structure, and other structures in the test box will not be described in detail here; it should be emphasized that the heater 108, evaporator 109, refrigeration unit, pressure balance member 107 and humidifier are all common structures in existing test boxes, and the working principles of each structure will not be described in detail in this embodiment.

[0070] Furthermore, if Figure 2 As shown, a plurality of test holes 110 are provided on the outer wall of the air-conditioning room 102, so that the wires of the test instrument can pass through the test holes 110 and the second ventilation duct 104 in sequence to connect to the test piece, so that the test piece can be tested by the test instrument; and a drain pipe 111 is provided at the bottom end of the air-conditioning room 102, so that the liquid in the box 10 can be discharged through the drain pipe 111, so as to ensure the reliability and safety of the test of the test piece. Among them, the test instrument needs to be determined according to the specific test piece and the test requirements.

[0071] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. An air outlet structure, arranged in a test chamber (101) of a box (10) for placing a test piece, characterized in that: include: An air outlet plate (1) is arranged on the inner side of the top end of the test chamber (101), and a plurality of air outlet holes (11) are evenly arranged on the air outlet plate (1); A wind shield (2) is attached to the air outlet plate (1) and close to the test piece, and a plurality of wind shield holes (21) are evenly arranged on the wind shield (2). The wind shield (2) can move relative to the air outlet plate (1) along a first direction or a second direction so that the wind shield holes (21) are aligned with or staggered from the air outlet holes (11), and the first direction is perpendicular to the second direction.

2. The air outlet structure according to claim 1, characterized in that: An air-conditioning room (102) is also formed in the box body (10) and is spaced apart from the test room (101). In the first direction and in a direction away from the air-conditioning room (102), the aperture of the air outlet (11) and / or the aperture of the wind shielding hole (21) gradually decreases.

3. The air outlet structure according to claim 1, characterized in that: The wind shield (2) is located in a test area in the test chamber (101), the test piece is placed in the test area, and the position and size of the wind shield hole (21) are respectively the same as the position and size of the air outlet hole (11).

4. The air outlet structure according to any one of claims 1 to 3, characterized in that: The air outlet structure also includes: A driving component, wherein a fixed end of the driving component is arranged on the box body (10), and a driving end of the driving component is connected to the wind shield (2), and the driving component is used to drive the wind shield (2) to move relative to the air outlet plate (1) along the first direction or the second direction.

5. The air outlet structure according to any one of claims 1 to 3, characterized in that: One of the air outlet plate (1) and the wind shield plate (2) is provided with a waist-shaped hole (12), and the other is provided with a fixing hole (22); the length of the waist-shaped hole (12) extends along the first direction or the second direction; a fastener connects the aligned waist-shaped hole (12) and the fixing hole (22).

6. The air outlet structure according to claim 5, characterized in that: The waist-shaped holes (12) and the fixing holes (22) are each provided in plurality.

7. The air outlet structure according to any one of claims 1 to 3, characterized in that: The air outlet structure also includes: An air regulating member (3), one end of which is detachably mounted on the air outlet plate (1), and the other end of which is capable of adjusting the angle relative to the air outlet plate (1).

8. The air outlet structure according to claim 7, characterized in that: The air regulating member (3) comprises: A mounting plate (31) and a folding plate (32), wherein the mounting plate (31) is detachably mounted to the air outlet plate (1), one end of the folding plate (32) is connected to the mounting plate (31), the other end of the folding plate (32) is foldable relative to the mounting plate (31), and each mounting plate (31) is respectively connected to a plurality of folding plates (32) arranged at intervals.

9. The air outlet structure according to claim 7, characterized in that: A plurality of the air regulating members (3) are provided, and the object to be tested is located inside the plurality of the air regulating members (3).

10. A test box, characterized in that The test box comprises a box body (10) and an air outlet structure as claimed in any one of claims 1 to 9, wherein the box body (10) is formed with the test chamber (101) and the air-conditioning chamber (102), and the test box further comprises a temperature adjustment component and a fan (106) located in the air-conditioning chamber (102), wherein the temperature adjustment component is used to adjust the temperature of the air in the air-conditioning chamber (102), and the fan (106) is configured to blow the air in the air-conditioning chamber (102) into the test chamber (101) through the air outlet hole (11).

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