Noise testing device for air outlet of automobile air conditioner

Abstract

The utility model discloses a noise testing device for an air outlet of an automobile air conditioner, which relates to the technical field of noise testing and comprises a tester body, a display screen is arranged on the upper side of the front end of the tester body, a plurality of control buttons are arranged on the lower side of the front end of the tester body, and a fixing assembly is arranged at the right end of the tester body. A connecting block is inserted into a fixed frame and fixed through a locking bolt and a nut, a part capable of being clamped is found in an automobile interior trim, the upper side of a fixed plate makes contact with the part, a threaded cylinder is rotated to rotate on the outer surface of a threaded rod, and then a movable plate can be driven to move downwards; the fixed plate and the movable plate are clamped at proper positions of the automotive trim, the tester body is moved to the position of the air outlet by adjusting the position of the supporting rod, and the tester body can be kept stable during noise testing, so that the accuracy and consistency of noise data are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of noise testing, in particular to a noise testing device for an automobile air-conditioning air outlet. Background Technique

[0002] The automobile air-conditioning air outlet is the terminal equipment of the air-conditioning system, which is used to adjust the air volume and direction to realize the air circulation and temperature control in the vehicle. Excessive noise at the air outlet may affect the comfort of drivers and passengers. Noise testing is a key step in evaluating and diagnosing noise problems. Through noise testing, design defects or manufacturing problems in the air-conditioning system can be detected, such as unbalanced fans, poor air flow, loose components, etc. The test results can help engineers understand the spectral characteristics of the noise, analyze its causes, and propose improvement plans.

[0003] During the use of most noise testing devices, the testing device is usually held close to the air outlet by hand. The position and angle of the device may change when held by hand, resulting in unstable noise readings and affecting the accuracy of the test data. Based on this, this solution provides a noise testing device for an automobile air-conditioning air outlet to solve the above-mentioned problems. Content of the Utility Model

[0004] To solve the above technical problems, a noise testing device for an automobile air-conditioning air outlet is provided. This technical solution solves the problem that during the use of most noise testing devices, the testing device is usually held close to the air outlet by hand, and the position and angle of the device may change when held by hand, resulting in unstable noise readings and affecting the accuracy of the test data as described in the above background technique.

[0005] To achieve the above purposes, the technical solution adopted by the utility model is: a noise testing device for an automobile air-conditioning air outlet, including a tester body. A display screen is arranged on the upper side of the front end of the tester body, and a plurality of control buttons are arranged on the lower side of the front end of the tester body. A fixing component is arranged at the right end of the tester body;

[0006] Among them, the fixing component includes a fixing frame. An installation groove is opened at the left end of the fixing frame, and second threaded holes are opened at both the front and rear ends of the installation groove. A support rod is fixedly connected to the right end of the fixing frame, and a first connecting rod is fixedly connected to the other end of the support rod. A movable plate is sleeved on the outer surface of the first connecting rod, a second rubber pad is arranged at the lower end of the movable plate, a fixing plate is fixedly connected to the lower end of the first connecting rod, and a first rubber pad is arranged at the upper end of the fixing plate.

[0007] Preferably, a threaded rod is arranged on the outer surface of the first connecting rod, and a threaded cylinder is threadedly connected to the outer surface of the threaded rod. The threaded cylinder is sleeved on the outer surface of the support rod.

[0008] Preferably, both the left and right ends of the tester body are fixedly connected with connecting blocks, and the front ends of both the connecting blocks are provided with first threaded holes.

[0009] Preferably, locking bolts are threadedly connected to the interiors of both the first threaded holes and the second threaded holes, and the connecting blocks are fixed inside the fixing frame through the locking bolts and nuts.

[0010] Preferably, a limiting groove is provided at the upper end of the tester body, a noise receiving microphone is arranged inside the limiting groove, and a second connecting rod is fixedly connected to the lower end of the noise receiving microphone.

[0011] Preferably, the lower end of the second connecting rod is fixedly connected to the upper end of the tester body, and a protective shell is slidably installed inside the limiting groove.

[0012] Compared with the prior art, the present utility model provides a noise testing device for an automobile air-conditioning air outlet, and has the following beneficial effects:

[0013] By inserting the connecting blocks into the interior of the fixing frame, fixing them with locking bolts and nuts, finding a clamping part in the automobile interior trim, contacting the upper side of the fixing plate with this part, rotating the threaded cylinder to rotate on the outer surface of the threaded rod, the movable plate can be driven to move downward, so that the fixing plate and the movable plate are clamped at a suitable position of the automobile interior trim. By adjusting the position of the support rod, the tester body can be moved to the position of the air outlet. When testing the noise, the tester body can remain stable, thereby ensuring the accuracy and consistency of the noise data. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural diagram of the present utility model;

[0015] Figure 2 is a structural diagram of the fixing component in the present utility model;

[0016] Figure 3 is an internal structural diagram of the fixing frame in the present utility model;

[0017] Figure 4 is a structural diagram at the protective shell in the present utility model.

[0018] The reference numerals in the figures are:

[0019] 1. Tester body; 2. Display screen; 3. Control button; 4. Connecting block; 5. First threaded hole;

[0020] 6. Fixed component; 601. Fixed frame; 602. Installation groove; 603. Second threaded hole; 604. Support rod; 605. Fixed plate; 606. First rubber pad; 607. Movable plate; 608. Second rubber pad; 609. Threaded rod; 610. Threaded cylinder; 611. First connecting rod

[0021] 7. Locking bolt; 8. Nut; 9. Limiting groove; 10. Second connecting rod; 11. Noise receiving microphone; 12. Protective shell Detailed implementation manners

[0022] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations

[0023] Refer to Figures 1-4 As shown, a noise testing device for an automotive air-conditioning outlet includes a tester body 1. A display screen 2 is provided on the upper side of the front end of the tester body 1, and a plurality of control buttons 3 are provided on the lower side of the front end of the tester body 1. The tester body 1, the display screen 2 and the plurality of control buttons 3 are electrically connected. A fixed component 6 is provided at the right end of the tester body 1. The fixed component 6 includes a fixed frame 601. An installation groove 602 is opened at the left end of the fixed frame 601. Second threaded holes 603 are opened at both the front and rear ends of the installation groove 602. A support rod 604 is fixedly connected to the right end of the fixed frame 601. The material of the support rod 604 is silicone. The flexibility of the silicone allows the support rod 604 to adapt to different shapes and angles, providing good fixing ability. The other end of the support rod 604 can be fixedly connected to a first connecting rod 611. A movable plate 607 is sleeved on the outer surface of the first connecting rod 611. A second rubber pad 608 is provided at the lower end of the movable plate 607. The lower end of the first connecting rod 611 is fixedly connected to a fixed plate 605. A first rubber pad 606 is provided at the upper end of the fixed plate 605. The first rubber pad 606 and the second rubber pad 608 can provide frictional force, enabling the fixed component 6 to be stably fixed at a clampable position in the automotive interior. A threaded rod 609 is provided on the outer surface of the first connecting rod 611. A threaded cylinder 610 is threadedly connected to the outer surface of the threaded rod 609. The threaded cylinder 610 is sleeved on the outer surface of the support rod 604

[0024] Refer to Figure 1 、 Figure 2 and Figure 4As shown in the figure, connecting blocks 4 are fixedly connected to both the left and right ends of the tester body 1. First threaded holes 5 are provided at the front ends of the two connecting blocks 4. Locking bolts 7 are threadedly connected to the interiors of both the first threaded holes 5 and the second threaded holes 603. When the connecting blocks 4 are inserted into the interior of the mounting grooves 602, the first threaded holes 5 and the second threaded holes 603 are aligned. The locking bolts 7 are inserted into the interiors of the first threaded holes 5 and the second threaded holes 603 and, in cooperation with nuts 8, can fix the tester body 1 to the fixing assembly 6. The connecting blocks 4 are fixed inside the fixing frame 601 through the locking bolts 7 and the nuts 8. A limiting groove 9 is provided at the upper end of the tester body 1. A noise receiving microphone 11 is provided inside the limiting groove 9. A protective shell 12 is provided outside the noise receiving microphone 11. During use, the protective shell 12 is taken out from the interior of the limiting groove 9. When not in use, the protective shell 12 is inserted into the interior of the limiting groove 9 to prevent dust, dirt, or other substances from entering the microphone and protect its internal components from damage. The lower end of the noise receiving microphone 11 is fixedly connected to a second connecting rod 10, and the lower end of the second connecting rod 10 is fixedly connected to the upper end of the tester body 1. The protective shell 12 is slidably installed inside the limiting groove 9.

[0025] The working principle and usage process of the present utility model: When in use, find a position for clamping in the automotive interior and near the air-conditioning outlet. Make the upper side of the fixed plate 605 and the lower side of the movable plate 607 contact the position for clamping. Rotate the threaded cylinder 610 so that it rotates on the outer surface of the threaded rod 609. During the rotation, it moves downward. The downward movement can drive the movable plate 607 to move downward, and thus the movable plate 607 and the fixed plate 605 can be tightened to fix the fixing assembly 6 in the automotive interior. By adjusting the support rod 604, make it located near the air-conditioning outlet. Insert one of the connecting blocks 4 on the tester body 1 into the interior of the mounting groove 602. Insert the locking bolt 7 into the second threaded hole 603 and the first threaded hole 5, and cooperate with the nut 8 to fix the tester body 1 inside the fixing frame 601, making the noise receiving microphone 11 at the upper end of the tester body 1 close to the air-conditioning outlet. The audio signal captured by the noise receiving microphone 11 is converted into digital data and appears on the display screen 2, and thus the test result can be obtained.

[0026] The above shows and describes the basic principle, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A noise testing device for an automotive air-conditioning air outlet, characterized in that: It includes a tester body (1), on the upper side of the front end of the tester body (1) there is a display screen (2), on the lower side of the front end of the tester body (1) there are several control buttons (3), and on the right end of the tester body (1) there is a fixing component (6); Among them, the fixing component (6) includes a fixing frame (601), on the left end of the fixing frame (601) there is an installation groove (602), at both the front and rear ends of the installation groove (602) there are second threaded holes (603), on the right end of the fixing frame (601) there is a support rod (604) fixedly connected, at the other end of the support rod (604) there is a first connecting rod (611) fixedly connected, on the outer surface of the first connecting rod (611) there is a movable plate (607) sleeved, at the lower end of the movable plate (607) there is a second rubber pad (608), at the lower end of the first connecting rod (611) there is a fixing plate (605) fixedly connected, and at the upper end of the fixing plate (605) there is a first rubber pad (606).

2. The noise test device for an automotive air-conditioning air outlet according to claim 1, characterized in that:

3. A noise testing device for an automotive air-conditioning air outlet according to claim 1, characterized in that: On the outer surface of the first connecting rod (611) there is a threaded rod (609), on the outer surface of the threaded rod (609) there is a threaded cylinder (610) threadedly connected, and the threaded cylinder (610) is sleeved on the outer surface of the support rod (604).

4. The noise testing device for an automotive air-conditioning air outlet according to claim 3, wherein: At both the left and right ends of the tester body (1) there are connecting blocks (4) fixedly connected, and at the front end of both connecting blocks (4) there are first threaded holes (5).

5. The noise testing device for an automotive air-conditioning air outlet according to claim 1, wherein: Inside the first threaded hole (5) and inside the second threaded hole (603) there are locking bolts (7) threadedly connected, and the connecting block (4) is fixed inside the fixing frame (601) through the locking bolt (7) and a nut (8).

6. The noise testing device for an automotive air-conditioning air outlet according to claim 5, characterized in that: On the upper end of the tester body (1) there is a limiting groove (9), inside the limiting groove (9) there is a noise receiving microphone (11), and at the lower end of the noise receiving microphone (11) there is a second connecting rod (10) fixedly connected. The lower end of the second connecting rod (10) is fixedly connected to the upper end of the tester body (1), and inside the limiting groove (9) there is a protective shell (12) slidably installed.

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