Device for detecting refrigeration effect of automobile air conditioner

Abstract

The utility model relates to the technical field of automobile air conditioner refrigeration detection, in particular to an automobile air conditioner refrigeration effect detection device, which comprises a mounting bracket and a shifting frame, the mounting bracket is provided with a hanging piece for fixing the mounting bracket at an air outlet of an air conditioner, and the hanging piece comprises a fastening rod in threaded connection with the mounting bracket; one end of the fastening rod is rotationally connected with a hook part in a damping mode, the shifting frame is slidably connected to the mounting support, and a detector used for detecting the refrigeration effect of the air conditioner is connected to the shifting frame through a telescopic connecting piece and used for adjusting the position of the detector at an air outlet. According to the utility model, the mounting bracket is fixed at the air outlet of the automobile air conditioner, and the distance between the detector and the air outlet is adjusted according to the detection requirement, so that the detector can be ensured to be in a relatively stable measurement environment, the situation that the detector is possibly subjected to surrounding airflow due to random movement is avoided, and the measurement error is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning refrigeration testing technology, and in particular to an automotive air conditioning refrigeration effect testing device. Background Technology

[0002] In the automobile production process, the air conditioning cooling effect is one of the important indicators of automobile comfort. Through testing, it can be ensured that the air conditioning system of each car leaves the factory meets the cooling performance standards set by the company. Furthermore, different car models have different interior space sizes, shapes, heat insulation performance, and passengers' expected comfort temperatures. By testing the cooling effect, we can understand the actual performance of the existing air conditioning system in various car models, thereby providing a basis for optimizing the design parameters such as air conditioning power, air volume, and air outlet layout.

[0003] Currently, there are two main methods for testing the cooling effect of air conditioning. One method involves connecting the high and low pressure interfaces of the car's air conditioning system and using a pressure gauge to measure the pressure within the cooling system. However, this method is complex and requires the tester to be familiar with the pressure range and working principle of the air conditioning system of different car models, requiring a high level of expertise. Therefore, the common testing method is to use a handheld tester to measure the air vents of the car's air conditioning system. Although this method is simple, the cold air blown out of the air vents mixes with the surrounding air after leaving the vents. If the tester is placed in a slightly different position, the measured temperature may vary. For example, the measured temperature may differ if the tester is near the edge of the vent and if it is located in the center of the vent, because the air at the edge of the vent may mix with the surrounding air, leading to inaccurate temperature measurements.

[0004] Based on the above situation, we propose a device for testing the cooling effect of automotive air conditioning to solve the above problems. Utility Model Content

[0005] This invention provides a device for testing the cooling effect of an automotive air conditioning system, in order to solve the problems existing in the prior art.

[0006] The technical problem solved by this utility model is achieved by the following technical solution:

[0007] A device for testing the cooling effect of an automotive air conditioning system includes a mounting bracket and a shifting bracket. The mounting bracket is provided with a hook for fixing the mounting bracket to the air conditioning vent. The hook includes a fastening rod threadedly connected to the mounting bracket. One end of the fastening rod is rotatably connected to a hook. The shifting bracket is slidably connected to the mounting bracket, and a testing instrument for testing the cooling effect of the air conditioning system is connected to the shifting bracket via a telescopic connector for adjusting the position of the testing instrument at the air vent.

[0008] Preferably, the telescopic connector includes a sliding sleeve fixedly connected to the shifting frame and a movable rod slidably connected inside the sliding sleeve. The open end of the sliding sleeve is connected to a plurality of radially arranged constricted openings equidistant from the circumference of the sliding sleeve axis, and a constricted opening sleeve is threaded onto the sliding sleeve. When the constricted opening sleeve abuts against the constricted opening, the open end of the constricted opening retracts inward.

[0009] Preferably, the displacement frame is threadedly connected to a fixing member, which is used to fix the displacement frame to the mounting bracket.

[0010] Preferably, the inner wall of the hook portion and the inner wall of the mounting bracket on the side near the hook portion are provided with a flexible protective layer.

[0011] Preferably, the shifting frame is provided with an isolation cover installed on the outside of the detector, and the diameter of the port of the isolation cover gradually increases towards the opening end.

[0012] Preferably, the movable rod can rotate within the sliding sleeve to drive the detector to move within a specific position range.

[0013] The beneficial effects of this utility model are as follows: By fixing the instrument to the air outlet of the car's air conditioning system with a mounting bracket and adjusting the distance between the instrument and the air outlet according to the testing requirements, it can ensure that the instrument is in a relatively stable measurement environment. This avoids interference from factors such as surrounding airflow and uneven temperature field that may occur due to random movement, making the test data more accurately reflect the true temperature of the air outlet and other relevant parameters, reducing measurement errors. Furthermore, by conducting the test in a fixed position, a unified standard can be established for the testing of different vehicles, making the test data between different vehicles comparable and facilitating horizontal comparative analysis. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 Schematic diagram of the isometric structure provided by this utility model Figure 1 ;

[0016] Figure 2 Schematic diagram of the isometric structure provided by this utility model Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the connection structure between the retractable connector and the detector in this utility model;

[0018] Figure 4 This is a schematic diagram of the mounting bracket installed at the air vent of an automotive air conditioner in this utility model.

[0019] In the diagram, 1. Mounting bracket; 2. Hanging component; 21. Fastening rod; 22. Hook; 3. Transfer frame; 31. Fixing component; 4. Telescopic connector; 41. Sliding sleeve; 42. Movable rod; 43. Closure part; 44. Closure sleeve; 5. Detector; 6. Flexible protective layer; 7. Isolation cover. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0021] Reference Figure 1-Figure 4 As shown, a car air conditioning cooling effect testing device includes a mounting bracket 1. The mounting bracket 1 is provided with a hook 2 for fixing the mounting bracket 1 to the air conditioning vent. The hook 2 includes a fastening rod 21 threadedly connected to the mounting bracket 1. One end of the fastening rod 21 is damped and rotatably connected to a hook portion 22. In use, the mounting bracket 1 is first rotated to allow the hook portion 22 to enter through the car air conditioning vent. Then, the mounting bracket 1 is pulled to allow the hook portion 22 to hook onto the air vent. At this point, the mounting bracket 1 is rotated again to adjust its angle to a suitable position. Because the hook portion 22 is attached to the air vent... The hook 22 is rotatably connected to the fastening rod 21. When the hook 22 hooks onto the car air conditioning vent, it will no longer rotate synchronously with the fastening rod 21. However, when the fastening rod 21 is rotated, the threaded connection between the fastening rod 21 and the mounting bracket 1 will cause the hook 22 to tightly hook onto the car air conditioning filter, so that the mounting bracket 1 is installed on the car air conditioning filter. When it is necessary to remove it, the fastening rod 21 is rotated in the opposite direction to cause the hook 22 to disengage from the air conditioning filter. Then, the mounting bracket 1 is rotated to cause the hook 22 to be misaligned with the car air conditioning filter, so that the hook 22 can be moved out of the air conditioning filter at the car air conditioning vent.

[0022] A shift bracket 3 is slidably connected to the mounting bracket 1. A detector 5 for testing the air conditioning cooling effect is connected to the shift bracket 3 via a telescopic connector 4. The detector 5 is used to adjust the position of the detector 5 at the air outlet. The detector 5 can use temperature sensors such as thermocouples or thermistors to convert temperature signals into electrical signals. After processing by electronic circuits, the temperature value is displayed on the screen. The above is prior art, which should be known to those skilled in the art, and will not be described in detail here. After fixing the mounting bracket 1 at the outlet of the car air conditioner, the position of the shift bracket 3 is adjusted, and the distance between the detector 5 and the air outlet of the car air conditioner is adjusted by the telescopic connector 4 to test the air conditioning cooling effect. This ensures that the position of the detector 5 at the air outlet is standardized. For multiple vehicles, the test can be performed at the same air outlet position, improving the accuracy of the test and avoiding temperature measurement deviations caused by different placement positions of the detector 5.

[0023] Reference Figure 3 As shown, the telescopic connector 4 further includes a sliding sleeve 41 fixedly connected to the shifting frame 3 and a movable rod 42 slidably connected inside the sliding sleeve 41. The open end of the sliding sleeve 41 is connected to a plurality of constricted portions 43 arranged radially at equal intervals around the axis of the sliding sleeve 41, and a constricted sleeve 44 is threadedly connected to the sliding sleeve 41. When the constricted sleeve 44 abuts against the constricted portion 43, the open end of the constricted portion 43 retracts inward. When it is necessary to adjust the distance between the detector 5 and the air conditioning vent, the position of the movable rod 42 inside the sliding sleeve 41 is slid, and then the constricted sleeve 44 is rotated to squeeze the constricted portion 43, so that the constricted portion 43 tightly wraps around the outside of the movable rod 42 to fix the movable rod 42, thereby facilitating the length adjustment of the telescopic connector 4. The air conditioning vents of different models vary in shape, size and air outlet method. Some air vents are flat and elongated, while others are round. Furthermore, the length, width, and depth of the air vents vary. By adjusting the distance between the detector 5 and the air vent, the detector 5 can better adapt to these differences. For example, for flat and wider air vents, appropriately increasing the distance ensures that the detector 5 can measure the temperature of the entire air vent evenly, avoiding the detection of only localized temperatures due to excessive distance. Also, when the distance is close to the air vent, the detector primarily detects the newly blown, colder air. As the distance increases, it detects the temperature of the gradually mixed air. Depending on the testing objective, sometimes it is necessary to measure the temperature of the newly blown, cold air to assess the initial performance of the air conditioning system, and sometimes it is necessary to measure the temperature of the mixed air to understand its impact on the overall temperature inside the vehicle. Adjusting the distance allows for flexible fulfillment of both measurement needs.

[0024] Reference Figure 1As shown, furthermore, the shift frame 3 is threadedly connected to a fixing member 31, which is used to fix the shift frame 3 to the mounting bracket 1. When the fixing member 31 is rotated so that the end of the fixing member 31 is in close contact with the side wall of the mounting bracket 1, the position of the shift frame 3 can be fixed to ensure the stability of the detection position of the detector 5.

[0025] In order to prevent the mounting bracket 1 from causing wear to the vehicle's air conditioning vents during installation, a flexible protective layer 6 is provided on the inner wall of the hook part 22 and the inner wall of the mounting bracket 1 on the side near the hook part 22. The protective layer 6 can be made of rubber or silicone to avoid direct contact with the air conditioning filter of the air conditioning vents and causing damage.

[0026] Reference Figure 3 As shown, the shift frame 3 is further provided with an isolation cover 7 installed on the outside of the detector 5, and the diameter of the port of the isolation cover 7 gradually increases towards the opening end. The isolation cover 7 reduces the influence of external temperature and airflow on the detector 5, so that the airflow blown out of the air conditioner outlet can act more on the detector 5, and reduce the heat transfer from the surrounding environment.

[0027] Reference Figure 3 As shown, the movable rod 42 can rotate within the sliding sleeve 41 to drive the detector 5 to move within a specific range of positions. The angles of the movable rod 42 and the detector 5 can be adjusted without changing the angle of the mounting bracket 1. By rotating the angle of the detector 5, it can better adapt to various complex vehicle structures and air vent positions without changing the overall position and angle of the mounting bracket 1, making it easier for testing personnel to operate and improving testing efficiency.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for testing the cooling effect of an automotive air conditioning system, characterized in that, include; Mounting bracket (1), the mounting bracket (1) is provided with a hook (2) for fixing the mounting bracket (1) to the air outlet of the air conditioner, the hook (2) includes a fastening rod (21) threadedly connected to the mounting bracket (1), and one end of the fastening rod (21) is connected to a hook (22) with damping rotation. The shifting frame (3) is slidably connected to the mounting bracket (1), and the shifting frame (3) is connected to a detector (5) for detecting the cooling effect of the air conditioner through a telescopic connector (4), which is used to adjust the position of the detector (5) at the air outlet.

2. The automotive air conditioning cooling effect testing device according to claim 1, characterized in that, The retractable connector (4) includes a sliding sleeve (41) fixedly connected to the shift frame (3) and a movable rod (42) slidably connected inside the sliding sleeve (41). The open end of the sliding sleeve (41) is connected to a plurality of radially arranged constricted mouth portions (43) equidistant from the circumference of the axis of the sliding sleeve (41). A constricted mouth sleeve (44) is threaded onto the sliding sleeve (41). When the constricted mouth sleeve (44) abuts against the constricted mouth portion (43), the open end of the constricted mouth portion (43) retracts inward.

3. The automotive air conditioning cooling effect testing device according to claim 1, characterized in that, The shifting frame (3) is threaded with a fixing member (31), which is used to fix the shifting frame (3) on the mounting bracket (1).

4. The automotive air conditioning cooling effect testing device according to claim 1, characterized in that, The inner wall of the hook part (22) and the inner wall of the mounting bracket (1) near the hook part (22) are provided with a flexible protective layer (6).

5. The automotive air conditioning cooling effect testing device according to claim 1, characterized in that, The shift frame (3) is provided with an isolation cover (7) installed on the outside of the detector (5), and the diameter of the port of the isolation cover (7) gradually increases towards the opening end.

6. The automotive air conditioning cooling effect testing device according to claim 2, characterized in that, The movable rod (42) can rotate within the sliding sleeve (41) to drive the detector (5) to move within a specific position range.

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