CN111721571A - Air inlet testing device for automobile air conditioner - Google Patents
Air inlet testing device for automobile air conditioner Download PDFInfo
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- CN111721571A CN111721571A CN202010695981.1A CN202010695981A CN111721571A CN 111721571 A CN111721571 A CN 111721571A CN 202010695981 A CN202010695981 A CN 202010695981A CN 111721571 A CN111721571 A CN 111721571A
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- air
- air inlet
- automobile
- testing device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a testing device for an air inlet of an automobile air conditioner, which comprises an air pressure sensor, an air box, an air flow meter, an axial flow fan, an air quantity adjusting device and a temperature and humidity sensor, wherein the air flow meter is arranged on the air box; the side face of the air box is provided with an air inlet and an air outlet, an air flow channel is arranged in the air box, the air inlet is communicated with the air outlet through the air flow channel, an air pressure sensor, an air flow meter, an axial flow fan and a temperature and humidity sensor are arranged in the air flow channel, the air pressure sensor is close to the air outlet, and an air quantity adjusting device is arranged at the air inlet. The invention can define different air inlet air quantity and air inlet backpressure of the air inlet according to requirements, has simple operation, more truly simulates the air inlet working condition information of automobile parts under the condition of the whole automobile, and provides more accurate test conditions for various performance tests of the automobile air conditioner.
Description
Technical Field
The invention relates to a testing device for automobile parts, in particular to a testing device for an air inlet of an automobile air conditioner.
Background
A transition air channel exists between an external circulation air port of an existing automobile air conditioner and an air inlet grid of a whole automobile windshield, and when various performance tests such as single noise of an air conditioner box body are actually carried out, the influence of back pressure caused by the transition air channel of the whole automobile in an external circulation mode is ignored, and the reason is that data of air quantity and back pressure of an air inlet end cannot be directly measured.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a testing device for an air inlet of an automobile air conditioner, which can simulate the air inlet working condition under the condition of the whole automobile, aiming at the defects of the existing testing conditions.
In order to achieve the purpose, the invention adopts the following technical scheme: a testing device for an air inlet of an automobile air conditioner comprises an air pressure sensor, an air box, an air flow meter, an axial flow fan, an air quantity adjusting device and a temperature and humidity sensor; the side face of the air box is provided with an air inlet and an air outlet, an air flow channel is arranged in the air box, the air inlet is communicated with the air outlet through the air flow channel, an air pressure sensor, an air flow meter, an axial flow fan and a temperature and humidity sensor are arranged in the air flow channel, the air pressure sensor is close to the air outlet, and an air quantity adjusting device is arranged at the air inlet.
Further, air regulation device includes toper dog, adjustment handle, air inlet baffle, air-inlet grille, screw rod, support, and the air-inlet grille sets up at the air intake, and the air inlet baffle sets up at the air-inlet grille inboard, and the toper dog sets up in the through-hole of air-inlet baffle, and the support is fixed on the air-inlet grille, and the screw rod setting is in the threaded hole of support, and toper dog is connected to screw rod one end, and adjustment handle is connected to the other end.
Further, the airflow channels are arranged in a serpentine shape.
Furthermore, an open pore foaming material layer is laid inside the air flow channel pipeline.
Furthermore, the air pressure sensor, the air flow meter, the axial flow fan and the temperature and humidity sensor are respectively connected with the electric control box.
Furthermore, the electrical control box is provided with a human-computer interaction interface, and the human-computer interaction interface can display the gas flow, the back pressure, the temperature and the humidity of the airflow channel and can control the rotating speed of the axial flow fan.
Furthermore, the electric control box transmits the information of the gas flow, the back pressure, the temperature and the humidity of the gas flow channel and the rotating speed of the axial flow fan to a computer through a data line for processing and analysis.
Further, the bellows is provided with a moving wheel.
Has the advantages that: the air inlet testing device of the automobile air conditioner can define different air inlet air quantity and air inlet backpressure of the air inlet according to needs, is simple to operate, more truly simulates air inlet working condition information of automobile parts under the condition of the whole automobile, and provides more accurate testing conditions for various performance tests of the automobile air conditioner.
Drawings
FIG. 1 is a schematic structural diagram of an air inlet testing device of an automobile air conditioner;
FIG. 2 is a schematic structural view of an air volume adjusting device;
in the figure: 1-air outlet; 2-an air pressure sensor; 3-an air box; 4-an air flow meter; 5-an electrical control box; 6-axial flow fan; 7-air volume adjusting device; 7-1-tapered stops; 7-2-adjusting handle; 7-3-air intake baffle; 7-4-air inlet grille; 7-5-screw; 7-6-scaffold; 8-temperature and humidity sensor; 9-air inlet; 10-an airflow channel; 11-a flow guide baffle; 12-layer of open cell foam.
The specific implementation mode is as follows:
the invention is further explained below with reference to the drawings.
As shown in figure 1, the testing device for the air inlet of the automobile air conditioner comprises an air pressure sensor 2, an air box 3, an air flow meter 4, an axial flow fan 6, an air quantity adjusting device and a temperature and humidity sensor 8.
Bellows 3 is the rectangle, and bellows 3 bottom can be equipped with the removal wheel (not shown in the figure), makes things convenient for testing arrangement to remove and realizes the butt joint with the air conditioner product that awaits measuring, and bellows 3 side is equipped with air intake 9 and air outlet 1, and bellows 3 is inside to contain airflow channel 10, and air intake 9 and air outlet 1 pass through airflow channel 10 intercommunication. The air flow channel 10 is used for simulating a transition air duct existing between an external circulation air port of an automobile air conditioner and an air inlet grid of a windshield of the whole automobile, and the air outlet 1 is used for being connected with an air inlet of an air conditioner product to be tested. Air pressure sensor 2, airflow meter 4, axial fan 6, temperature and humidity sensor 8 set up in airflow channel 10, and air pressure sensor 2 is close to air outlet 1 for the air inlet backpressure in the monitoring airflow channel 10, and airflow meter 4 is used for the air mass flow through airflow channel 10, and axial fan 6 is used for passing through airflow channel 10 with the outside air and introducing the air conditioner air intake, and temperature and humidity sensor 8 is used for measuring the physical properties of air. The air quantity adjusting device 7 is arranged at the air inlet 9 and is used for adjusting the air quantity of the air inlet 9.
As shown in figure 2, the air volume adjusting device 7 comprises a conical stop 7-1, an adjusting handle 7-2, an air inlet baffle 7-3, an air inlet grille 7-4, a screw rod 7-5 and a bracket 7-6. An air inlet grille 7-4 is arranged at an air inlet 9, an air inlet baffle 7-3 is arranged at the inner side of the air inlet grille 7-4, a conical stop 7-1 is arranged in a through hole of the air inlet baffle 7-3, a support 7-6 is fixed on the air inlet grille 7-4, a screw rod 7-5 is arranged in a threaded hole of the support 7-6, one end of the screw rod 7-5 is connected with the conical stop 7-1, and the other end is connected with an adjusting handle 7-2. The working principle is as follows: external air enters the air box 3 through the air inlet grilles 7-4 on the two sides, the handle 7-2 is shaken to enable the conical stop block 7-1 to realize horizontal displacement, the size of a gap between the conical stop block 7-1 and a through hole of the air inlet baffle 7-3 is adjusted, and finally the change of air inlet volume and air inlet resistance is realized due to the change of the air inlet area.
The air outlet 1 is connected with the air inlet end of a product to be detected, and the required air quantity and back pressure combination is realized by adjusting the rotating speed of the axial flow fan 6 in a matching manner under various air inlet working conditions.
As shown in fig. 1, in this embodiment, the air outlet 1 is located at the upper portion of the left side of the air box 3, the air inlet 9 is located at the lower portion of the right side of the air box 3, the air box 3 is internally provided with an upper flow guide baffle 11 and a lower flow guide baffle 11, the air flow channel 10 is divided into an upper layer, a middle layer and a lower layer of short flow channels by the flow guide baffles 11, and the three layers of flow channels are sequentially connected end to end. The right end of the lower layer runner is communicated with the air inlet 9, the upper part of the left end of the lower layer runner is communicated with the lower part of the left end of the middle layer runner, the upper part of the right end of the middle layer runner is communicated with the lower part of the right end of the upper layer runner, and the left end of the upper layer runner is communicated with the air outlet 1. The axial flow fan 6 is positioned in the middle of the lower flow channel, the temperature and humidity sensor 8 is positioned in the lower part of the left end of the lower flow channel, the air flow meter 4 is positioned in the middle, and the air pressure sensor 2 is positioned in the upper part of the left end of the upper flow channel. The airflow channels 10 are arranged in a snake shape, and the provided channels can meet the requirement of instrument arrangement of performance testing and save space length.
The perforated foaming material layer 12 is laid in the air channel 10, has a sound absorption effect, and eliminates slight noise possibly generated by air flow passing through the axial flow fan 6 and the air flow meter 4, so that the sound quality of the air outlet 1 is ensured.
The air pressure sensor 2, the air flow meter 4, the axial flow fan 6 and the temperature and humidity sensor 8 are respectively connected with the electric control box 5. The electric control box 5 is also provided with a human-computer interaction interface. In the testing process, measured data signals are transmitted to the electric control box 5 through the temperature and humidity sensor 8, the air flow meter 4 and the air pressure sensor 2, the information of the air flow, the back pressure and the temperature and humidity of the airflow channel can be displayed through the human-computer interaction interface, and the rotating speed of the axial flow fan 6 can be controlled. All the parameter information can be transmitted to computer software through an external data line of the electric control box 5 for post-processing analysis.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an air inlet testing device of an automobile air conditioner, its characterized in that: comprises an air pressure sensor (2), an air box (3), an air flow meter (4), an axial flow fan (6), an air quantity adjusting device (7) and a temperature and humidity sensor (8); the air box is characterized in that an air inlet (9) and an air outlet (1) are arranged on the side face of the air box (3), an air flow channel (10) is arranged inside the air box (3), the air inlet (9) and the air outlet (1) are communicated through the air flow channel (10), an air pressure sensor (2), an air flow meter (4), an axial flow fan (6) and a temperature and humidity sensor (8) are arranged in the air flow channel (10), the air pressure sensor (2) is close to the air outlet (1), and an air volume adjusting device (7) is arranged at the air inlet (9).
2. The automobile air conditioner air inlet testing device according to claim 1, characterized in that: the air volume adjusting device (7) comprises a conical stop block (7-1), an adjusting handle (7-2), an air inlet baffle plate (7-3), an air inlet grille (7-4), a screw rod (7-5) and a support (7-6), wherein the air inlet grille (7-4) is arranged at an air inlet (9), the air inlet baffle plate (7-3) is arranged at the inner side of the air inlet grille (7-4), the conical stop block (7-1) is arranged in a through hole of the air inlet baffle plate (7-3), the support (7-6) is fixed on the air inlet grille (7-4), the screw rod (7-5) is arranged in a threaded hole of the support (7-6), one end of the screw rod (7-5) is connected with the conical stop block (7-1), and the other end of the screw rod is connected with the.
3. The automobile air conditioner air inlet testing device according to claim 1, characterized in that: the airflow channels (10) are arranged in a snake shape.
4. The automobile air conditioner air inlet testing device according to claim 3, characterized in that: and a perforated foaming material layer (12) is laid in the pipeline of the airflow channel (10).
5. The automobile air conditioner air inlet testing device according to claim 1, characterized in that: the air pressure sensor (2), the air flow meter (4), the axial flow fan (6) and the temperature and humidity sensor (8) are respectively connected with the electric control box (5).
6. The automobile air conditioner air inlet testing device according to claim 5, characterized in that: the electric control box (5) is provided with a human-computer interaction interface, the gas flow, the back pressure, the temperature and the humidity of the airflow channel (10) can be displayed through the human-computer interaction interface, and the rotating speed of the axial flow fan (6) can be controlled.
7. The automobile air conditioner air inlet testing device according to claim 6, characterized in that: and the electric control box (5) transmits the information of the gas flow, the back pressure, the temperature and the humidity of the gas flow channel (10) and the rotating speed of the axial flow fan (6) to a computer through a data line for processing and analysis.
8. The automobile air conditioner air inlet testing device according to claim 1, characterized in that: the bellows (3) is provided with a movable wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010695981.1A CN111721571A (en) | 2020-07-20 | 2020-07-20 | Air inlet testing device for automobile air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010695981.1A CN111721571A (en) | 2020-07-20 | 2020-07-20 | Air inlet testing device for automobile air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111721571A true CN111721571A (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010695981.1A Pending CN111721571A (en) | 2020-07-20 | 2020-07-20 | Air inlet testing device for automobile air conditioner |
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| Country | Link |
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| CN (1) | CN111721571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114100508A (en) * | 2021-11-11 | 2022-03-01 | 北京亚东生物制药(安国)有限公司 | Spray granulation equipment |
-
2020
- 2020-07-20 CN CN202010695981.1A patent/CN111721571A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114100508A (en) * | 2021-11-11 | 2022-03-01 | 北京亚东生物制药(安国)有限公司 | Spray granulation equipment |
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