An air conditioner noise testing device and a testing method

Abstract

The present invention discloses an air conditioner noise testing device and a testing method, which relate to the technical field of air conditioner noise testing. The device includes a base and a plurality of noise sensors. The base is located on the upper end face of the outdoor unit of the air conditioner to be detected. A motor is embedded in the upper end face of the base. The output end of the motor is connected to a support column. A sleeve rod is fixedly inserted through the radial outer wall of the support column. Sleeves are sleeved on the outer walls at both ends of the sleeve rod. The end of a connecting shaft is hinged to a hinge plate that can swing up and down around the end of the connecting shaft. A hinge seat is hinged between the ends of the two hinge plates. A mounting back plate is vertically fixed to the bottom end face of the hinge seat. A plurality of mounting holes for inserting insertion rods are formed in the mounting back plate. The present invention forms a three-dimensional detection area for 360° comprehensive noise detection outside the air conditioner to be detected, solving the problem that the existing fixed-point detection of the noise of the outdoor unit of the air conditioner leads to a large error in the final detection value, prone to misjudgment, and affecting the development efficiency of low-noise air conditioners.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner noise testing, and specifically to an air conditioner noise testing device and a testing method. Background Technique

[0002] Noise is also a kind of sound. Sound is composed of a mixture of sound waves with various different frequencies. The sound that interferes with people's study, work and life and its sound source is noise. For an air conditioner, which is a general-purpose electrical appliance applied in office places, study places and rest places, it meets people's usage requirements for different temperatures. However, when the air conditioner is working, the rotation of its fan will generate a certain amount of noise. Especially at night, if the noise is too loud, it will seriously interfere with people's daily work, study and rest.

[0003] Therefore, during the production process of the air conditioner, it is necessary to conduct noise tests on it. Most of the existing methods for detecting the noise of air conditioners still fix multiple sound sensors on the outdoor unit and collect the noise in a certain direction of the outdoor unit at fixed points. Since the propagation direction of noise is not specific, only collecting the noise at fixed positions on the outdoor unit, there are large errors in the final detection values, so it is easy to misjudge, which affects the development efficiency of low-noise air conditioners. Therefore, an air conditioner noise testing device and a testing method are designed here to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an air conditioner noise testing device and a testing method to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An air conditioner noise testing device includes a base and multiple noise sensors. The signal output end of the noise sensor is connected to a controller, the signal port of the controller is connected to an amplifier, the signal port of the amplifier is connected to an attenuator, the signal port of the attenuator is connected to an effective value detector, and the signal port of the effective value detector is connected to an indicating meter.

[0006] The base is located on the upper end face of the outdoor unit of the air conditioner to be detected. The upper end face of the base is embedded with a motor. The output end of the motor is connected to a support column. A sleeve rod is fixedly inserted through the radial outer wall of the support column. Sleeves are sleeved on the outer walls at both ends of the sleeve rod. A support plate is fixed to the radial outer wall of the sleeve. A connecting shaft is rotatably provided on the upper end face of the support plate. The end of the connecting shaft is hinged with a hinge plate that can swing up and down around the end of the connecting shaft. A hinge seat is hinged between the ends of the two hinge plates. The two hinge plates can rotate together and separate around the position hinged with the hinge seat. A mounting back plate is vertically fixed to the bottom end face of the hinge seat. A plugging rod is fixed to the outer shell of the noise sensor. Multiple mounting holes for plugging the plugging rod are provided on the mounting back plate.

[0007] Multiple noise sensors are evenly spaced in the vertical direction, and the base is placed on the upper end face of the outdoor unit of the air conditioner to be tested. The motor drives the support column to rotate, and the sleeve rod can move in a circle with the support column as the center, so that the multiple noise sensors can move in a circle with the base as the center, that is, they move in a circle around the outer side of the air conditioner room. The detection area formed in the vertical direction forms a three-dimensional detection area for 360° comprehensive noise detection outside the air-conditioning room to be tested.

[0008] In a further embodiment, the end of the plug rod is inserted from an opening of the mounting hole close to the base, and the outer wall of the noise sensor abuts against a side wall of the mounting back plate close to the base.

[0009] In a further embodiment, a plurality of door-shaped frames horizontally opposite to each mounting hole are fixed to a side wall of the mounting back plate away from the base, and a docking rod coaxially distributed with the mounting hole is fixed to the inner side wall of the door-shaped frame opposite to the mounting hole. A slot is provided at the end of the plug-in rod, and the docking rod and the slot are interference fit. The docking rod is inserted into the slot so that the docking rod and the plug-in rod are stably socketed. In the absence of external force to pull out the plug-in rod, the plug-in rod will not easily detach from the docking rod.

[0010] A plurality of notches are provided on the radial outer wall of the end of the plug-in rod.

[0011] In a further embodiment, a spherical groove is provided on the radial side wall at one end of the slot away from the end of the connecting rod, and a spherical support block is fixedly sleeved on the outer wall of the end of the docking rod. The ball diameter of the spherical support block is larger than the inner diameter of the slot. The spherical support block enters the slot from the slot opening, opens the notch of the connecting rod, and is stuck in the spherical groove.

[0012] In a further embodiment, the sleeve is slidably sleeved with the sleeve rod, and limit plates are fixed at both axial ends of the sleeve rod, a protrusion is fixed at the bottom end of the outer wall of the sleeve rod, and a guide groove slidably engaged with the protrusion is opened on the inner wall of the sleeve;

[0013] The upper end face of the outer wall of the sleeve rod is provided with tooth grooves distributed along the axial direction of the sleeve rod. The upper end of the outer wall of the sleeve is provided with positioning holes. The lower side wall of one end of the hinge plate close to the connecting shaft is vertically fixed with a positioning rod. The end of the positioning rod is a sheet-like structure, and the end of the sheet-like structure passes through the positioning hole and is clamped into the tooth groove at the corresponding position. Lifting the hinge plate upward around the connecting shaft can disengage the sheet-like structure of the positioning rod from the positioning hole of the sleeve, so that the end of the sheet-like structure is separated from the tooth groove of the sleeve rod. Then, the two sleeves are slid together or away along the sleeve rod. The connecting shaft rotates on the support plate, and the hinged position between the hinge plate and the hinge seat rotates. The included angle between the two hinge plates becomes larger or smaller, and the hinge seat can adjust the noise sensor installed on the mounting back plate to the side close to or away from the air conditioner outdoor unit, meeting the noise detection requirements of air conditioner outdoor units of different sizes.

[0014] In a further embodiment, a plurality of clamping rods are vertically arranged at the bottom edge position of the base. The plurality of clamping rods are equally divided into two groups, and the two groups of clamping rods are symmetrically distributed.

[0015] In a further embodiment, the end of the clamping rod is bent towards the center of the bottom end face of the base and extends obliquely upward as a buffer part. The side wall of the obliquely distributed buffer end abuts against the outer wall of the air conditioner.

[0016] In a further embodiment, a slider is fixed at the top end of the clamping rod. A T-shaped sliding groove for sliding and clamping the slider is provided on the bottom end face of the base. A push rod perpendicular to the bottom end face of the base and facing the buffer part of the clamping rod is fixed. An I-shaped pressing wheel is rotatably provided at the bottom end of the side wall of the push rod facing the buffer part of the clamping rod. The I-shaped pressing wheel is in rolling fit with the side wall of the buffer part. When the base is located on the upper end of the air conditioner outdoor unit, the side walls of the buffer ends of the two groups of clamping rods are obliquely distributed and abut against the outer wall of the air conditioner. The clamping rods cannot be lowered in height. As the base is continuously lowered, the clamping rods slide upward along the T-shaped sliding groove by using the slider, and the push rod presses the side wall of the buffer part by using the I-shaped pressing wheel, and the self-weight of the base can be used to deform the buffer end and press it against the side wall of the air conditioner outdoor unit, enhancing the stability.

[0017] In a further embodiment, a T-shaped guiding block is fixed at the bottom end of the side wall of the push rod facing away from the buffer part of the clamping rod. A T-shaped guiding groove for sliding and clamping the T-shaped guiding block is provided on the side wall of the clamping rod facing the push rod.

[0018] Preferably, based on the above testing method of an air conditioner noise testing device, the following steps are included:

[0019] Multiple noise sensors are evenly spaced in the vertical direction. At the same time, the base is placed on the upper end face of the air conditioner outdoor unit to be detected. The motor drives the support column to rotate, enabling the sleeve rod to make a circular motion centered on the support column, and thus enabling the multiple noise sensors to make a circular motion centered on the base, that is, to make a circular motion around the outside of the air conditioner. The detection area formed in the vertical direction forms a three-dimensional detection area for 360° comprehensive noise detection outside the air conditioner to be detected. In this way, the accuracy of the detected noise value is greatly improved compared with the traditional fixed-point detection method.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The present invention relates to an air conditioner noise testing device and a testing method. Multiple noise sensors are evenly spaced in the vertical direction. The base is placed on the upper end face of the air conditioner outdoor unit to be detected. The multiple noise sensors make a circular motion centered on the base, that is, to make a circular motion around the outside of the air conditioner. A three-dimensional detection area for 360° comprehensive noise detection is formed outside the air conditioner to be detected. In this way, the accuracy of the detected noise value is greatly improved compared with the traditional fixed-point detection method, so as to solve the problem that the existing fixed-point detection of the noise of the air conditioner outdoor unit leads to a large error in the final detected value and is prone to misjudgment, affecting the development efficiency of low-noise air conditioners. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the gantry structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the noise sensor structure of the present invention;

[0025] Figure 4 It is a partial cross-sectional view of the insertion rod connected to the noise sensor of the present invention;

[0026] Figure 5 It is a schematic diagram of the further improved structure of the main structure of the present invention;

[0027] Figure 6 It is a cross-sectional view of the base structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the clamping rod structure of the present invention;

[0029] Figure 8 It is an exploded view of the clamping rod and the push rod structure of the present invention;

[0030] Figure 9 It is an exploded view of the further improved structure of the clamping rod and the push rod of the present invention;

[0031] Figure 10 Partial cross-sectional view of the clamping rod and push rod of the present invention in a top view;

[0032] Figure 11 Enlarged view of the sleeve and sleeve rod structure of the present invention;

[0033] Figure 12 Partial cross-sectional view of the sleeve and sleeve rod of the present invention in a side view.

[0034] In the figure: 1, base; 2, clamping rod; 21, slider; 22, T-shaped guide groove; 3, motor; 4, support column; 5, sleeve rod; 51, limit disc; 52, tooth groove; 53, convex block; 6, sleeve; 61, support plate; 62, connecting shaft; 63, hinge plate; 64, positioning rod; 7, hinge seat; 71, portal frame; 72, docking rod; 73, spherical support block; 8, noise sensor; 81, insertion rod; 9, push rod; 91, I-shaped pressure wheel; 92, T-shaped guide block. Specific embodiments

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1 - 12 , this embodiment provides an air conditioner noise test device and test method, including a base 1 and a plurality of noise sensors 8. The noise sensors 8 adopt the common CRY2112 model. The signal output end of the noise sensor 8 is connected to a controller, and the model of the controller is STM32F103C8T6. Other models that meet the actual use requirements can also be selected according to actual use needs. The signal port of the controller is connected to an amplifier, the signal port of the amplifier is connected to an attenuator, the signal port of the attenuator is connected to an effective value detector, and the signal port of the effective value detector is connected to an indicating meter. The noise sensor 8 collects noise, converts the sound into an electrical signal, controls the amplifier to change the impedance through the controller to match the noise sensor 8 with the attenuator. The amplifier adds the output signal to the weighting network to perform frequency weighting on the signal, and then amplifies the signal to a certain amplitude through the attenuator and amplifier and sends it to the effective value detector, and finally gives the value of the noise level on the indicating meter head. The indicating meter can be embedded in the side wall of the base 1 for easy viewing of the detection value.

[0037] Other noise detection methods can also be adopted as long as they meet the noise detection requirements.

[0038] The base 1 is located on the upper end face of the air conditioner outdoor unit to be detected. A motor 3 is embedded in the upper end face of the base 1. The output end of the motor 3 is connected to a support column 4. A sleeve rod 5 is fixedly inserted through the radial outer wall of the support column 4. As Figure 1 and Figure 6 shown, the motor 3 is a reduction motor. The motor 3 drives the support column 4 to rotate slowly, and the sleeve rod 5 makes a circular motion with the support column 4 as the center.

[0039] Sleeve rods 6 are sleeved on the outer walls at both ends of the sleeve rod 5. A support plate 61 is fixed to the radial outer wall of the sleeve rod 6. A connecting shaft 62 is rotatably provided on the upper end face of the support plate 61. An end of the connecting shaft 62 is hinged to a hinge plate 63 that can swing up and down around the end of the connecting shaft 62. An end of two hinge plates 63 is hinged to a hinge seat 7. The two hinge plates 63 can rotate together and separate around the hinged position with the hinge seat 7. As Figure 1 shown, the two hinge plates 63 are turned downward around the corresponding connecting shaft 62 under their own weight and press on the upper end position of the outer wall of the sleeve rod 6, so that the hinge plates 63 are kept in a horizontal state, thereby keeping the hinge seat 7 hinged to the ends of the hinge plates 63 in a horizontal state.

[0040] An installation back plate is vertically fixed to the bottom end face of the hinge seat 7. A plugging rod 81 is fixed to the housing of the noise sensor 8. A plurality of installation holes for plugging the plugging rod 81 are provided on the installation back plate. As Figure 1 shown, when the hinge seat 7 is in a horizontal state, the installation back plate is kept in a vertical state. After the plugging rod 81 connected to the noise sensor 8 is inserted into the installation hole of the installation back plate, a plurality of noise sensors 8 can be located in the same vertical plane, forming a detection area in the vertical direction.

[0041] A plurality of noise sensors 8 are evenly spaced in the vertical direction. At the same time, the base 1 is located on the upper end face of the air conditioner outdoor unit to be detected. The motor 3 drives the support column 4 to rotate, and the sleeve rod 5 can make a circular motion with the support column 4 as the center, so that a plurality of noise sensors 8 can make a circular motion with the base 1 as the center, that is, make a circular motion around the outside of the air conditioner. The detection area formed in the vertical direction forms a three-dimensional detection area for 360° comprehensive noise detection outside the air conditioner to be detected. The accuracy of the detected noise value is greatly improved compared with the traditional fixed-point detection method.

[0042] In the prior art, a noise sensor 8 is installed at a fixed point, and noise detection is only performed at a certain position. Since sound propagation is affected by external factors such as air resistance and wind force, the direction of noise propagation is not specific, and the final detection value has a large error. However, by forming a 360° three-dimensional detection area outside the air-conditioning outdoor unit to be detected, the noise detection orientation changes in real time, and noise in any direction can be detected. This solves the problem that the existing fixed-point noise detection of the air-conditioning outdoor unit results in a large error in the final detection value, which is prone to misjudgment and affects the efficiency of the development of low-noise air conditioners.

[0043] In addition, if Figure 1 The end of the plug-in rod 81 shown is inserted from the opening of the mounting hole close to the base 1, and the noise sensor 8 is inserted into the mounting hole through the plug-in rod 81. During the process of the noise sensor 8 making a circular motion around the air-conditioning outdoor unit, the noise sensor 8 and the plug-in rod 81 rotate to generate centrifugal force, which can press the outer wall of the noise sensor 8 tightly against the side wall of the mounting back plate close to the base 1, thereby preventing the noise sensor 8 from falling off during the rotation process.

[0044] It should be noted that the noise sensor 8 is installed by inserting the connecting rod 81 into the mounting hole. This makes it convenient to set the corresponding number of noise sensors 8 installed in the vertical direction of the mounting back plate according to the height of the air-conditioning outdoor unit, so that the noise detection area formed by multiple noise sensors 8 installed in the vertical direction can completely cover the air-conditioning outdoor unit of the corresponding height, so as to ensure that the noise collection is comprehensive and effective and improve the detection accuracy.

[0045] In addition, the noise sensor 8 faces the air conditioner outdoor unit, and there is no obstacle between the noise sensor 8 and the air conditioner outdoor unit to avoid obstruction of noise propagation, so that the noise sensor 8 can directly and accurately collect the noise generated by the air conditioner outdoor unit when it is working, thereby improving the accuracy of noise collection.

[0046] Furthermore, a plurality of door frames 71 horizontally opposite to each mounting hole are fixed to the side wall of the mounting back plate away from the base 1, and a docking rod 72 coaxially distributed with the mounting hole is fixed to the inner side of the door frame 71 and the side wall opposite to the mounting hole. A slot is provided at the end of the plug-in rod 81, and the docking rod 72 is interference-fitted with the slot, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the noise sensor 8 is installed, the plug-in rod 81 is passed through the installation hole, and the slot of the plug-in rod 81 is inserted into the outer wall of the docking rod 72 of the door frame 71. Since the docking rod 72 and the slot have an interference fit, the docking rod 72 is inserted into the slot, so that the docking rod 72 and the plug-in rod 81 are stably socketed. In the absence of external force to pull out the plug-in rod 81, the plug-in rod 81 will not easily detach from the docking rod 72.

[0047] Moreover, a plurality of notches are formed in the radially outer wall of the end portion of the insertion rod 81. When the docking rod 72 is inserted into the insertion slot, the plurality of notches are deformed to generate elastic potential energy of rebound, and the gap in the notches becomes larger, so as to expand the space in the insertion slot, ensure that the docking rod 72 can be quickly inserted into the insertion slot, and use the elastic potential energy generated by the deformation of the notches to stably wrap the docking rod 72 in the insertion slot.

[0048] A further improvement is that a spherical groove is formed in the radially side wall of one end of the insertion slot away from the end portion of the insertion rod 81. A spherical support block 73 is fixedly sleeved on the outer wall of the end portion of the docking rod 72. The diameter of the spherical support block 73 is larger than the inner diameter of the insertion slot. The spherical support block 73 enters the insertion slot from the opening of the insertion slot, and expands the notches of the insertion rod 81 and is stuck into the spherical groove. The spherical support block 73 is stuck in the spherical groove, and the outer wall of the spherical support block 73 abuts against the inner wall of the spherical groove, so as to further prevent the docking rod 72 from sliding out of the insertion slot in the reverse direction and causing the noise sensor 8 to fall off.

[0049] The sleeve 6 is slidably sleeved on the sleeve rod 5, and limiting disks 51 are fixed at both axial ends of the sleeve rod 5. The limiting disks 51 can prevent the sleeve 6 from sliding off the sleeve rod 5. A convex block 53 is fixed at the bottom end of the outer wall of the sleeve rod 5, and a guide groove for slidably engaging with the convex block 53 is formed in the inner wall of the sleeve 6. As Figure 12 shown, through the slidable engagement of the convex block 53 and the guide groove, the sleeve 6 can only axially slide along the outer wall of the sleeve rod 5 and cannot perform a rotation operation.

[0050] The sizes and powers of the existing air conditioner outdoor units produced on the market are different, which can meet the usage requirements of indoor units with different powers. In order to perform noise detection operations on air conditioner outdoor units of different sizes, a toothed groove 52 distributed along the axial direction of the sleeve rod 5 is formed on the upper end surface of the outer wall of the sleeve rod 5, and a positioning hole is formed on the upper end of the outer wall of the sleeve 6. A positioning rod 64 is vertically fixed to the lower side wall of one end of the hinge plate 63 close to the connecting shaft 62. The end portion of the positioning rod 64 is a sheet-like structure, and the end portion of the sheet-like structure passes through the positioning hole and is stuck into the corresponding toothed groove 52. As Figure 11 and Figure 12 shown, by lifting the hinge plate 63 upward around the connecting shaft 62, the sheet-like structure of the positioning rod 64 can be separated from the positioning hole of the sleeve 6, so that the end portion of the sheet-like structure is separated from the toothed groove 52 of the sleeve rod 5. Then, the two sleeves 6 are slid together or away along the sleeve rod 5, the connecting shaft 62 rotates on the support plate 61, the hinge position between the hinge plate 63 and the hinge seat 7 rotates, and the included angle between the two hinge plates 63 becomes larger or smaller. The hinge seat 7 can adjust the noise sensor 8 mounted on the mounting back plate to move closer to or away from the side of the air conditioner outdoor unit, so as to meet the noise detection requirements of air conditioner outdoor units of different sizes.

[0051] That is to say, regardless of whether the position of the noise sensor 8 is far from or close to the air conditioner outdoor unit, it must be satisfied that when the noise sensor 8 moves in a circular motion around the air conditioner outdoor unit, it will not touch the air conditioner outdoor unit.

[0052] In order to enhance the stability of the base 1 sitting on the air conditioner outdoor unit, a plurality of clamping rods 2 are vertically provided at the bottom edge position of the base 1. The plurality of clamping rods 2 are equally divided into two groups, and the two groups of clamping rods 2 are symmetrically distributed. As Figure 1 and Figure 7 described, when the base 1 is located on the upper end of the air conditioner outdoor unit, the two groups of clamping rods 2 can be respectively arranged on both sides of the air conditioner outdoor unit, so as to serve as a limiting member to prevent the base 1 from moving away from the air conditioner outdoor unit.

[0053] In order to further enhance the clamping stability, the end of the clamping rod 2 is bent towards the center of the bottom surface of the base 1 and extends obliquely upward to form a buffer portion. The clamping rods 2 are respectively arranged on the side walls on both sides of the air conditioner outdoor unit, and the deformed side walls of the inclined buffer ends are abutted against the outer wall of the air conditioner, so as to be suitable for air conditioner outdoor units of different widths.

[0054] In addition, a slider 21 is fixed at the top of the clamping rod 2. A T-shaped chute for sliding and clamping with the slider 21 is provided on the bottom surface of the base 1. A push rod 9 perpendicular to the bottom surface of the base 1 and facing the bent portion of the clamping rod 2 is fixed. An I-shaped pressure wheel 91 is rotatably provided at the bottom end of the side wall of the push rod 9 facing the buffer portion of the clamping rod 2, and the I-shaped pressure wheel 91 is in rolling fit with the side wall of the buffer portion. As Figure 5 、 Figure 6 and Figure 8 shown, when the base 1 is located on the upper end of the air conditioner outdoor unit, the side walls of the inclined buffer ends of the two groups of clamping rods 2 are abutted against the outer wall of the air conditioner, and the clamping rods 2 cannot be lowered in height. As the base 1 is continuously lowered, the clamping rods 2 slide upward along the T-shaped chute by using the slider 21, and the push rod 9 presses down on the side wall of the buffer portion by using the I-shaped pressure wheel 91, and the self-weight of the base 1 can be used to deform and press the buffer end against the side wall of the air conditioner outdoor unit to enhance the stability.

[0055] Moreover, a T-shaped guide block 92 is fixed at the bottom end of the side wall of the push rod 9 facing away from the buffer portion of the clamping rod 2. A T-shaped guide groove 22 for sliding and clamping with the T-shaped guide block 92 is provided on the side wall of the clamping rod 2 facing the push rod 9. As Figure 9 shown, the push rod 9 enhances the stability of the push rod 9 in the vertical direction by the relative sliding between the T-shaped guide block 92 and the T-shaped guide groove 22, so as to ensure the support strength when driving the I-shaped pressure wheel 91 to roll and deform the buffer end and avoid bending.

[0056] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air conditioner noise testing device, comprising a base (1) and a plurality of noise sensors (8). The signal output end of the noise sensor (8) is connected to a controller, the signal port of the controller is connected to an amplifier, the signal port of the amplifier is connected to an attenuator, the signal port of the attenuator is connected to an effective value detector, and the signal port of the effective value detector is connected to an indicating meter. It is characterized in that: The base (1) is located on the upper end face of the outdoor unit of the air conditioner to be detected. A motor (3) is embedded in the upper end face of the base (1). The output end of the motor (3) is connected to a support column (4). A sleeve rod (5) is fixedly inserted through the radial outer wall of the support column (4). Sleeves (6) are sleeved on the outer walls at both ends of the sleeve rod (5). A support plate (61) is fixed to the radial outer wall of the sleeve (6). A connecting shaft (62) is rotatably provided on the upper end face of the support plate (61). An articulated plate (63) capable of swinging up and down around the end of the connecting shaft (62) is hinged to the end of the connecting shaft (62). An articulated seat (7) is hinged between the ends of the two articulated plates (63). The two articulated plates (63) can rotate together and separate around the hinge position with the articulated seat (7). An installation back plate is vertically fixed to the bottom end face of the articulated seat (7). A plugging rod (81) is fixed to the outer shell of the noise sensor (8). A plurality of installation holes for plugging the plugging rod (81) are formed in the installation back plate. A plurality of clamping rods (2) are vertically provided at the bottom edge position of the base (1). The plurality of clamping rods (2) are equally divided into two groups, and the two groups of clamping rods (2) are symmetrically distributed. A slider (21) is fixed to the top end of the clamping rod (2). A T-shaped sliding groove for sliding and clamping the slider (21) is formed in the bottom end face of the base (1). A push rod (9) perpendicular to the bottom end face of the base (1) and facing the bent part of the clamping rod (2) is fixedly provided. An I-shaped pressing wheel (91) is rotatably provided at the bottom end of the side wall of the push rod (9) facing the buffer part of the clamping rod (2). The I-shaped pressing wheel (91) is in rolling fit with the side wall of the buffer part.

2. The air conditioner noise testing device according to claim 1, It is characterized in that: The end of the plugging rod (81) is inserted through the opening at the end of the installation hole close to the base (1), and the outer wall of the noise sensor (8) abuts against the side wall of the installation back plate close to the base (1).

3. The air conditioner noise testing device according to claim 2, It is characterized in that: A plurality of portal frames (71) horizontally opposite to each installation hole are fixed to the side wall of the installation back plate away from the base (1). A docking rod (72) coaxially distributed with the installation hole is fixed to the side wall of the inner side of the portal frame (71) opposite to the installation hole. A slot is formed at the end of the plugging rod (81). The docking rod (72) is in interference fit with the slot. A plurality of notches are formed in the radial outer wall at the end of the plugging rod (81).

4. The air conditioner noise testing device according to claim 3, It is characterized in that: One end of the radial side wall of the slot away from the end of the insertion rod (81) is provided with a spherical groove. The outer wall of the end of the docking rod (72) is fixedly sleeved with a spherical support block (73). The diameter of the spherical support block (73) is larger than the inner diameter of the slot. The spherical support block (73) enters the slot from the slot opening, expands the notch of the insertion rod (81), and is clamped into the spherical groove.

5. The air conditioner noise test device according to claim 1, characterized in that: The sleeve (6) is slidably sleeved with the sleeve rod (5), and limiting disks (51) are fixed at both axial ends of the sleeve rod (5). A convex block (53) is fixed at the bottom end of the outer wall of the sleeve rod (5), and a guide groove for slidably clamping the convex block (53) is provided on the inner wall of the sleeve (6); A toothed groove (52) distributed along the axial direction of the sleeve rod (5) is provided on the upper end surface of the outer wall of the sleeve rod (5). A positioning hole is provided on the upper end of the outer wall of the sleeve (6). A positioning rod (64) is vertically fixed to the lower side wall of one end of the hinge plate (63) close to the connecting shaft (62). The end of the positioning rod (64) is a sheet-like structure, and the end of the sheet-like structure passes through the positioning hole and is clamped into the toothed groove (52) at the corresponding position.

6. The air conditioner noise test device according to claim 1, characterized in that: The end of the clamping rod (2) is bent towards the center of the bottom surface of the base (1) and extends obliquely upward to form a buffer part. The side wall of the obliquely distributed buffer end abuts against the outer wall of the air conditioner.

7. The air conditioner noise test device according to claim 1, characterized in that: A T-shaped guide block (92) is fixed to the bottom end of the side wall of the push rod (9) facing away from the buffer part of the clamping rod (2). A T-shaped guide groove (22) for slidably clamping the T-shaped guide block (92) is provided on the side wall of the clamping rod (2) facing the push rod (9).

8. A test method for an air conditioner noise test device, using the air conditioner noise test device according to any one of claims 1-7, characterized in that, comprising the following steps: A plurality of noise sensors (8) are evenly spaced in the vertical direction. At the same time, the base (1) is placed on the upper end surface of the outdoor unit of the air conditioner to be detected. The motor (3) drives the support column (4) to rotate, and the sleeve rod (5) can make a circular motion centered on the support column (3), so that a plurality of noise sensors (8) can make a circular motion centered on the base (1), that is, make a circular motion around the outside of the air conditioner. The detection area formed in the vertical direction forms a three-dimensional detection area for 360° comprehensive noise detection outside the air conditioner to be detected. In this way, the accuracy of the detected noise value is greatly improved compared with the traditional fixed-point detection method.

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