CN219416730U - Test system - Google Patents

Abstract

The application discloses a test system belongs to the technical field of testing. The testing system comprises a temperature control unit, a pressure regulating unit and a rectifying air duct, wherein the temperature control unit and the pressure regulating unit are respectively connected to the two opposite ends of the rectifying air duct, the rectifying air duct is used for placing a product to be tested, the temperature control unit can control the temperature of air flowing through the product to be tested, and the pressure regulating unit is used for regulating the back pressure of the product to be tested; the temperature control unit comprises a temperature control cavity, an air inlet is formed in the temperature control cavity, and the temperature control cavity is communicated with the rectification air duct; the pressure regulating unit comprises a pressure regulating cavity, the pressure regulating cavity is communicated with the rectifying air duct, and an air outlet is formed in the pressure regulating cavity. According to the testing system provided by the application, the temperature control unit can control the temperature of air flowing through a product to be tested, the pressure regulating unit is used for regulating the back pressure of the product to be tested, so that the temperature and the back pressure environment can be matched with the use scene environment of the product to be tested, and the use scene environment of the product to be tested can be accurately simulated.

Description

Test system

Technical Field

The utility model relates to the technical field of testing, in particular to a testing system.

Background

The heat generated by the industrial power supply, the communication power supply, the server power supply and other equipment is large during operation, and a heat dissipation device is required to be arranged, so that forced air cooling is usually carried out by adopting a fan. Forced air cooling products need to simulate various use scenes of the products during testing, such as high-temperature environments, system back pressure and the like. The incubator can simulate the high temperature environment, can also have system back pressure in the incubator use, but the size of system back pressure can't be according to the adjustment of different products that await measuring, can not simulate the back pressure size of different products that await measuring in different use scenes, simulate the environment mismatch of test environment and the actual use scene of the product that awaits measuring, lead to the test result inaccurate. Therefore, providing a test system capable of accurately simulating the use scene environment of a product to be tested is a technical problem to be solved.

Disclosure of Invention

The application provides a test system, which can solve the problem that the simulation test environment of the test system is not matched with the actual use scene environment of a product to be tested.

In order to solve the technical problems, the application provides a testing system which comprises a temperature control unit, a pressure regulating unit and a rectifying air duct, wherein the temperature control unit and the pressure regulating unit are respectively connected to two opposite ends of the rectifying air duct, the rectifying air duct is used for placing a product to be tested, the temperature control unit can control the temperature of air flowing through the product to be tested, and the pressure regulating unit is used for regulating the back pressure of the product to be tested; the temperature control unit comprises a temperature control cavity, an air inlet is formed in the temperature control cavity, and the temperature control cavity is communicated with the rectification air duct; the pressure regulating unit comprises a pressure regulating cavity, the pressure regulating cavity is communicated with the rectifying air duct, and an air outlet is formed in the pressure regulating cavity; during the operating condition, the fan of test product rotates for outside air gets into the control by temperature change cavity through the air intake, and the air is heated in the control by temperature change cavity, and the air after the heating flows through rectification wind channel and pressure regulating cavity in proper order and discharges through the air outlet.

The application provides a test system, test system include control by temperature change unit and pressure regulating unit, and control by temperature change unit steerable air temperature who flows through the product of waiting to test, and pressure regulating unit is used for adjusting the backpressure of waiting to test the product for temperature and backpressure environment all can with wait to test the product use scene environment assorted, consequently can accurate simulation wait to test the product use scene environment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of a test system provided herein;

FIG. 2 is a schematic diagram of an exploded structure of one embodiment of a test system provided herein;

FIG. 3 is a schematic cross-sectional view of an embodiment of a testing system according to the present application along a viewing angle;

FIG. 4 is a schematic view of an embodiment of a porous plate provided herein;

FIG. 5 is a schematic view of an embodiment of a shutter valve provided herein;

FIG. 6 is an exploded view of another embodiment of a test system provided herein.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present utility model, but do not limit the scope of the present utility model. Likewise, the following examples are only some, but not all, of the examples of the present utility model, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present utility model.

In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. The terms "first," "second," "third," and the like in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The application provides a test system. Referring to fig. 1, fig. 2, fig. 3, fig. 1 is a schematic structural diagram of an embodiment of a test system provided in the present application, fig. 2 is an exploded structural diagram of an embodiment of a test system provided in the present application, and fig. 3 is a schematic sectional structural diagram of an embodiment of a test system provided in the present application along a view angle. The test system 100 may include a temperature control unit 10, a voltage regulating unit 20, and a rectifying air duct 30, where the temperature control unit 10 and the voltage regulating unit 20 are respectively connected to opposite ends of the rectifying air duct 30. The rectifying air duct 30 is used for placing the product 200 to be tested, the temperature control unit 10 can control the temperature of air flowing through the product 200 to be tested, and the pressure regulating unit 20 is used for regulating the back pressure of the product 200 to be tested.

The temperature control unit 10 comprises a temperature control cavity 11, an air inlet 111 is formed in the temperature control cavity 11, and the temperature control cavity 11 is communicated with the rectification air duct 30. Specifically, the temperature-controlled cavity 11 may include a first top plate 112, a first bottom plate 113, and a first sidewall 114. The first top plate 112, the first bottom plate 113 and the first sidewall 114 enclose a temperature-controlled cavity 11. The air inlet 111 may be formed on any side of the first sidewall 114 or on the top plate 112, and the position of the air inlet 111 is set according to the test requirement. One side of the first sidewall 114 is connected with the rectifying duct 30. The air inlet 111 may be a plurality of through holes formed on the first sidewall 114, and the cross-sectional shape of the through holes may be circular, elliptical, polygonal or other shapes. The outer contour envelope of the plurality of through holes may be rectangular, circular or other shape.

The pressure regulating unit 20 comprises a pressure regulating cavity 21, the pressure regulating cavity 21 is communicated with the rectifying air duct 30, and an air outlet 211 is formed in the pressure regulating cavity 21. Specifically, the pressure regulating cavity 21 may include a second top plate 212, a second bottom plate 213, and a second sidewall 214. The second top plate 212, the second bottom plate 213, and the second sidewall 214 enclose a pressure regulating cavity 21. One side of the second side wall 214 is connected with the rectification air duct 30, the second side wall 214 is provided with an air outlet 211, and the opening position of the air outlet 211 can be set according to the test requirement. The air outlet 211 may be a plurality of through holes formed on the second sidewall 214, and the cross-sectional shape of the through holes may be circular, elliptical, polygonal, or other shapes. The outer contour envelope of the plurality of through holes may be rectangular, circular or other shape.

The outer periphery of the rectifying air duct 30 can be subjected to heat insulation treatment by adopting heat insulation cotton so as to reduce heat exchange between the air in the rectifying air duct 30 and the outside, thereby maintaining the air temperature in the rectifying air duct 30 stable.

The holes of the cable penetrating through the test system 100 can be plugged by rubber plugs or sealing mud, so that the air tightness of the test system 100 is ensured.

During operation, the fan of the product 200 to be tested rotates, so that external air enters the temperature control cavity 11 through the air inlet 111, the air is heated in the temperature control cavity 11, and the heated air sequentially flows through the rectifying air duct 30 and the pressure regulating cavity 21 and is discharged through the air outlet 211.

The application provides a test system 100, test system 100 includes control by temperature change unit 10 and pressure regulating unit 20, and control by temperature change unit 10 controllable air temperature who flows through to test product 200, pressure regulating unit 20 are used for adjusting the backpressure of to test product 200 for temperature and backpressure environment all can be with to test product 200 use scene environment assorted, consequently can accurate simulation to wait to test product 200 use scene environment.

The test system 100 can be sized according to the specifications of the product 200 to be tested, and can be used for testing various forced air cooling products. Compared with the wind tunnel for simulating the back pressure, the test system 100 provided by the application has the advantages of small occupied area, convenience in movement, low cost and the like, and the test system 100 overcomes the defect that the wind tunnel cannot simulate a high-temperature environment.

The temperature control unit 10 may include a heater 12, a heat sink 13, and a heating control board 14. The heater 12 and the radiator 13 are both installed in the temperature control chamber 11, and the radiator 13 is disposed corresponding to the heater 12 to increase the heating area of the air. Specifically, the heater 12 may be a resistive wire, conductive ceramic, or other exothermic material.

The pressure regulating unit 20 includes a back pressure regulating member 22, and the back pressure regulating member 22 is installed at one end of the pressure regulating cavity 21 near the air outlet 211 for regulating the back pressure of the product 200 to be tested.

In one embodiment, the back pressure adjusting member is a porous plate 221, referring to fig. 4, fig. 4 is a schematic diagram of an embodiment of a porous plate provided in the present application. The perforated plate 221 has a plurality of through holes 2211 therethrough, and air is discharged from the air outlet 211 after passing through the through holes 2211. As the air flows toward the porous plate 221, the porous plate 221 blocks the flow of air. The back pressure of the product 200 to be tested can be adjusted by controlling the resistance of the porous plate 221 to the air flow by adjusting the ratio of the sum of the areas of the plurality of through holes 2211 to the plate surface area of the porous plate 221 (i.e., the opening ratio). Specifically, when a larger back pressure value is required for the product 200 to be tested, the porous plate 221 having a smaller aperture ratio may be selected; conversely, when the product 200 to be tested needs a smaller back pressure value, the porous plate 221 with a larger aperture ratio can be selected, so that the back pressure value is matched with the use scene environment of the product 200 to be tested.

With continued reference to fig. 4, in one embodiment, the porous plate 221 is detachably connected with a pressure-regulating rubber plug 2212 for blocking the through hole 2211. The pressure regulating rubber plug 2212 is adopted to plug part of the through holes 2211 of the porous plate 221, so that the aperture ratio of the porous plate 221 can be regulated, and a backpressure value matched with the use scene environment of the product 200 to be tested is obtained. The opening rate of the porous plate 221 can be adjusted by adjusting the number of the pressure-adjusting rubber plugs 2212 on the porous plate 221, so that the number of the porous plate 221 can be reduced compared with the porous plate 221 with a plurality of different opening rates, and the back pressure can be adjusted more flexibly.

The number of porous plates 221 may be plural, and the porous plates 221 are arranged at intervals at one end of the pressure regulating cavity 21 near the air outlet 211, and the diameters and positions of the through holes 2211 formed on two adjacent porous plates 221 are different. The porous plates 221 provided with the through holes 2211 with different diameters are arranged at intervals, so that different resistances can be generated on the air flow to match the back pressure values of different use scenes of the product 200 to be tested. Specifically, when a larger back pressure value is required for the product 200 to be tested, the number of the porous plates 221 may be increased to increase the resistance to air circulation; conversely, when a smaller back pressure value is required for the product 200 to be tested, the number of the porous plates 221 can be reduced, so that the resistance of air circulation is reduced, and the back pressure value is matched with the use scene environment of the product 200 to be tested.

The pressure regulating cavity 11 is provided with mounting holes 215 corresponding to the porous plates 221 one by one, and one end of each porous plate 221 extends into or leaves the pressure regulating cavity 11 through the mounting hole 215. Specifically, a mounting hole 215 may be formed in the second top plate 212 or the second side wall 214, and the porous plate 221 may be mounted in the pressure regulating chamber 21 or removed from the pressure regulating chamber 21 through the mounting hole 215. The assembly gap between the porous plate 221 and the mounting hole 215 may be sealed with sealing mud to ensure the air tightness of the pressure regulating chamber 21.

In another embodiment, the back pressure adjusting member 22 is a shutter valve 222, and referring to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of the shutter valve provided in the present application. The louvered valve 222 includes a plurality of louvres 2221, the louvres 2221 being rotatable about a fixed axis, the back pressure of the product 200 being tested being regulated by adjusting the angle between the windward side of the louvres 2221 and the air flow path.

In an embodiment, the voltage regulating unit 20 includes a voltage regulating fan 23, and referring to fig. 6, fig. 6 is an exploded structure schematic diagram of another embodiment of the test system provided in the present application. The pressure regulating fan 23 is installed at the air outlet 211, and the pressure regulating fan 23 can blow or draw air into the pressure regulating cavity 21 to regulate the back pressure of the product 200 to be tested. When the back pressure value is smaller than the preset value, the pressure regulating fan 23 can blow air into the pressure regulating cavity 21 through the air outlet 211, or reduce the rotation speed of the pressure regulating fan 23 so as to increase the back pressure value; when the back pressure value is greater than the preset value, the pressure regulating fan 23 can draw out the air in the pressure regulating cavity 21 through the air outlet 211, or increase the rotation speed of the pressure regulating fan 23 to reduce the back pressure value. By arranging the pressure regulating fan 23, the back pressure value in the pressure regulating cavity 21 can be quickly regulated, so that the back pressure value is matched with the use scene environment of the product 200 to be tested.

In addition, by adjusting the speed of the pressure regulating fan 23 for pumping air from the pressure regulating cavity 21, the condition that the back pressure value of the product 200 to be tested is negative pressure can be simulated, and the defect that the wind tunnel is only suitable for simulating the back pressure value to be positive is overcome.

To monitor the back pressure value in the pressure regulating chamber 21, in one embodiment, a back pressure monitor 24 is installed in the pressure regulating chamber 21, as shown in fig. 3. The back pressure monitor 24 may be plural, and the plural back pressure monitors 24 are disposed at different positions in the pressure regulating cavity 21, and an average value of the back pressure values of plural points may be taken as a representative value of the back pressure value in the pressure regulating cavity 21, so as to reduce the measurement error of the back pressure value.

In one embodiment, the cross-sectional area of the rectifying duct 30 gradually decreases in the flow direction of the air. The cross section of the rectification air duct 30 is in a contracted shape, so that air is more uniformly discharged under the action of the rectification air duct 30.

The rectifying duct 30 is provided with a temperature monitor 31 at one end connected to the temperature control chamber 11 for monitoring the temperature of the air entering the rectifying duct 30, as shown in fig. 3. The temperature monitors 31 may be plural, and the plural temperature monitors 31 may be disposed at different positions in the rectifying duct 30, and an average value of the measured temperature values of plural points may be taken as a representative value of the temperature in the rectifying duct 30, so as to reduce the measurement error of the temperature.

The temperature monitor 31 is connected to the heating control board 14, and the heating control board 14 can adjust the heating power of the heater 12 according to the temperature detected by the temperature monitor 31 to adjust the temperature of the air entering the rectifying air duct 30. Specifically, an upper limit and a lower limit of the temperature of the product 200 to be tested in use can be set on the thermal control board 14, and when the detected temperature is lower than the set temperature lower limit, the heater 12 is started to heat or increase the heating power so as to raise the temperature of the air entering the rectification duct 30; when the detected temperature is higher than the set upper temperature limit, the heater 12 stops heating or reduces the heating power to reduce the temperature of the air entering the rectification duct 30. The heating control board 14 simulates the temperature environment of the product 200 to be tested in the machine room or cabinet by adjusting the temperature of the air entering the rectifying air duct 30, so that the temperature value is matched with the use scene environment of the product 200 to be tested.

The test system provided by the application has the following beneficial effects:

1. the test system 100 includes a temperature control unit 10 and a pressure regulating unit 20, wherein the temperature control unit 10 can control the temperature of air flowing through the product 200 to be tested, and the pressure regulating unit 20 is used for regulating the back pressure of the product 200 to be tested, so that the temperature and the back pressure environment can be matched with the use scene environment of the product 200 to be tested, and the use scene environment of the product 200 to be tested can be accurately simulated.

2. The back pressure value in the pressure regulating cavity body 21 can be regulated by regulating the back pressure regulating piece 22, so that the back pressure value is matched with the use scene environment of the product 200 to be tested.

3. The heating control board 14 can adjust the heating power of the heater 12 according to the temperature detected by the temperature monitor 31, and the temperature value is matched with the use scene environment of the product 200 to be tested by adjusting the temperature of the air entering the rectification air duct 30.

4. The pressure regulating rubber plugs 2212 for blocking the through holes 2211 are detachably connected to the porous plate 221, and the opening rate of the porous plate 221 can be adjusted by adjusting the number of the pressure regulating rubber plugs 2212 for blocking the through holes 2211 on the porous plate 221, so that the back pressure can be adjusted more flexibly.

5. The pressure regulating unit 20 includes a pressure regulating fan 23, and the back pressure value in the pressure regulating cavity 21 can be quickly regulated by blowing or exhausting air into the pressure regulating cavity 21 by the pressure regulating fan 23.

6. By adjusting the speed of the pressure-regulating fan 23 to draw air from the pressure-regulating cavity 21, the back pressure of the product 200 to be tested can be simulated as negative pressure.

The foregoing description is only a partial embodiment of the present utility model, and is not intended to limit the scope of the present utility model, and all equivalent devices or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.

Claims (10)

1. A test system, comprising:

the temperature control unit can control the temperature of air flowing through the product to be tested, and the pressure regulating unit is used for regulating the back pressure of the product to be tested;

the temperature control unit comprises a temperature control cavity, an air inlet is formed in the temperature control cavity, and the temperature control cavity is communicated with the rectification air duct;

the pressure regulating unit comprises a pressure regulating cavity, the pressure regulating cavity is communicated with the rectifying air duct, and an air outlet is formed in the pressure regulating cavity;

during the operating condition, the fan of test product rotates for outside air passes through the air intake gets into the control by temperature change cavity, the air is in the control by temperature change cavity is heated, and the air after the heating flows through in proper order the rectification wind channel and behind the pressure regulating cavity warp the air outlet discharges.

2. The test system of claim 1, wherein the temperature control unit comprises a heater and a heat sink, the heater and the heat sink are both mounted in the temperature control cavity, and the heat sink is disposed in correspondence with the heater to increase a heating area of the air.

3. The test system of claim 1, wherein the pressure regulating unit comprises a back pressure regulating member mounted at an end of the pressure regulating cavity near the air outlet for regulating the back pressure of the product to be tested.

4. A test system according to claim 3, wherein the back pressure regulating member is a porous plate provided with a plurality of through holes, and the air is discharged from the air outlet after flowing through the through holes.

5. The test system of claim 4, wherein the number of porous plates is plural, the porous plates are arranged at one end of the pressure regulating cavity close to the air outlet at intervals, and diameters and positions of the through holes formed in two adjacent porous plates are different.

6. The test system according to claim 5, wherein the pressure regulating cavity is provided with mounting holes corresponding to the porous plates one by one, and one end of the porous plate extends into or leaves the pressure regulating cavity through the mounting holes.

7. The test system of any one of claims 4 to 6, wherein a pressure regulating rubber plug for plugging the through hole is detachably connected to the porous plate.

8. A test system according to claim 3, wherein the back pressure regulator is a louvered valve comprising a plurality of louvres, the back pressure of the product to be tested being regulated by adjusting the angle between the windward side of the louvres and the air flow path.

9. The test system of claim 1, wherein the pressure regulating unit comprises a pressure regulating fan mounted at the air outlet, the pressure regulating fan being operable to blow or withdraw air into the pressure regulating cavity to regulate the backpressure of the product to be tested.

10. The test system of claim 1, wherein the cross-sectional area of the rectifying conduit is tapered in the flow direction of the air.