Air conditioner surge state detection device

Abstract

The present invention provides an air-conditioning surge state detection device, comprising a mounting plate and a plurality of filaments, wherein one end of the filaments is evenly fixed on the mounting plate, and the other end hangs freely by its own gravity and can swing under the action of airflow. The air-conditioning surge state detection device described in the present invention can not only make a qualitative judgment on whether the air conditioner has a surge phenomenon, but also can make a quantitative judgment on the strength of the surge and the change in the strength of the surge through the changes in the swing of the filaments. In addition, it has the advantages of simple structure, easy preparation, low cost, easy use, intuitive and accurate results, and economical and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular to an air conditioning surge state detection device. Background Art

[0002] During the use of the air conditioner, when the air filter is dirty or the air duct is poorly matched, the indoor unit of the air conditioner will make an annoying sound similar to the uneven breathing of a patient. This phenomenon is called surge. The surge phenomenon is not only a loss to the indoor unit of the air conditioner itself, but also the surge noise associated with the surge phenomenon also greatly affects the quality of life of users. Therefore, during the production and use of the air conditioner, especially before leaving the factory, it is necessary to test whether the air conditioner has surge phenomenon.

[0003] When air conditioner manufacturers first check whether there is surging phenomenon in the indoor unit of the air conditioner, they usually judge it by listening to the tester. The specific test method is: under the condition of indoor wet bulb temperature of 26℃ and humidity of 90%, use 10 layers of filter screen with specification of PP40×40 / inch to simulate the dirty and blocked filter screen. During the test, after the air conditioner is running stably and the indoor evaporator is covered with condensation water, use the remote control to control the air conditioner in different states such as wind guiding and wind sweeping, and run the whole machine for more than 30 minutes. The tester will conduct a hearing evaluation at a distance of 40cm-50cm from the surface of the machine body to judge whether there is surging phenomenon in the air conditioner. If there is no obvious abnormality in the wind sound of the indoor unit of the air conditioner, it is qualified.

[0004] Although this method has been widely used in the field of air-conditioning production, it still has the following disadvantages: First, it is highly subjective and has low accuracy: different testers have different perception sensitivities to the degree of surge, and the same tester has different perceptions of the same degree of surge under different conditions. In particular, it usually takes 2-4 hours to test an air conditioner under various working conditions, and testers are very prone to fatigue and miss or misjudge the results. Second, it is impossible to judge the strength of the surge state: it is difficult to measure the difference in the strength of surge of multiple models at different locations and at different times. Third, it is not sensitive to changes in the degree of surge: for example, when the number of filter layers is increased or decreased layer by layer, the difference in the change in the degree of surge is not obvious, and it is difficult to judge the change in the degree of surge through auditory evaluation.

[0005] Therefore, providing an air conditioning surge state detection device that is easy to use, accurate in detection, can accurately reflect the location where surge occurs, and can clearly show the degree of surge and its changes is one of the technical problems that technical personnel in this field urgently need to solve. Summary of the invention

[0006] The present invention designs an air conditioner surge state detection device to achieve convenient use and accurate detection, which can accurately reflect the location where the surge occurs and clearly show the surge degree and its change.

[0007] In order to solve the above problems, the present invention discloses an air conditioner surge state detection device

[0008] An air conditioner surge state detection device comprises a mounting plate and a plurality of filaments, one end of the filaments being evenly fixed on the mounting plate, and the other end of the filaments being freely hanging down by their own gravity and being able to swing under the action of airflow.

[0009] The air conditioner surge state detection device described in the present application intuitively reflects the change of the air flow at the air outlet of the air conditioner by setting a plurality of filaments that can swing with the wind. The swing of the filaments can not only qualitatively determine whether the air conditioner has a surge phenomenon, but also intuitively reflect the surge degree and its change at different positions and at different times of the same air conditioner or the difference in the surge degree between different air conditioners through the swing change of the filaments. The detection personnel can quantitatively judge the change of the surge degree at different positions and at different times of the same air conditioner and the difference in the surge degree between different air conditioners by observing the swing change of the filaments. In addition, the air conditioner surge state detection device described in the present application also has the advantages of simple structure, easy preparation, low cost, convenient use, intuitive and accurate results, and economical and efficient.

[0010] Furthermore, when performing surge state detection of the air conditioner, the mounting plate is fixed above the air outlet of the indoor unit of the air conditioner, and the filament hangs freely from the mounting plate and covers the air outlet.

[0011] The air conditioner surge state detection device described in the present application suspends multiple filaments at the air outlet of the air conditioner through the mounting plate, and enables the filaments to swing under the action of the air flow in the air outlet of the air conditioner. When the air conditioner is normally discharged, the air flow discharged from the air outlet is stable, and the filaments are blown by the air flow. The swing amplitude and direction of different filaments are consistent and fixed. When the air conditioner has a surge phenomenon, the air flow discharged from the air outlet is fluctuating, and the filaments are blown by the air flow, which will produce swings with uncertain directions and amplitudes. Therefore, it can be determined whether the air conditioner has a surge phenomenon by the swing of the filaments with the wind. On this basis, the difference in the surge state between different positions of the air outlet of the same air conditioner can also be determined by comparing the swing of the filaments at different positions of the air outlet of the air conditioner. In addition, the difference in the degree of surge at different times of the air outlet of the same air conditioner can also be determined by comparing the swing of the filaments at different times and at the same position of the air outlet of the air conditioner. And by comparing the swing conditions of the filaments at different air outlets of different air conditioners at different times or at the same time, the difference in surging degrees between the air outlets of different air conditioners can be determined.

[0012] Furthermore, the mounting plate is a complete plate.

[0013] Setting the mounting plate as a complete plate can make the structure of the air-conditioning surge state detection device described in the present application simpler.

[0014] Furthermore, the mounting plate is composed of a plurality of sub-mounting plates spliced ​​and assembled together, and a plurality of the filaments are evenly fixed on each of the sub-mounting plates. One end of the filament is evenly fixed on the sub-mounting plate, and the other end hangs freely due to its own gravity and can swing under the action of airflow.

[0015] The mounting plate is composed of a plurality of sub-mounting plates spliced ​​and assembled together, so that the overall length of the air-conditioning surge state detection device described in the present application can be set according to detection requirements, making the air-conditioning surge state detection device more convenient to use and having a wider range of applications.

[0016] Furthermore, the sub-mounting board includes a board body and a clamping portion and an inserting portion arranged at two ends of the board body, and the inserting portion can be inserted into the clamping portion on an adjacent sub-mounting board to connect two adjacent sub-mounting boards together.

[0017] The arrangement of the sub-mounting plates and the clamping portion and the plug-in portion 3 can make the splicing between the sub-mounting plates convenient and quick, the length of the air-conditioning surge state detection device can be changed, the detection range can be flexibly adjusted, and the use is more flexible.

[0018] Furthermore, the length of the mounting plate is recorded as L1, and the length of the air outlet is recorded as L7, then L7*80%≤L1.

[0019] This enables the length L1 of the mounting plate to approach or completely cover the entire length L7 of the air outlet of the air conditioner, so as to comprehensively reflect the changes in the air flow of the air outlet of the air conditioner.

[0020] Furthermore, the length of the filament hanging from the lower end of the mounting plate is recorded as L2, and the height of the air outlet is recorded as L6, then L6*1 / 2≤L2≤L6*3 / 2.

[0021] If the length L2 of the filament is too small, most of the airflow from the outlet will be discharged from the area not covered by the filament, and a small amount of airflow will be discharged through the gaps between the filaments. At this time, although the swing of the filament can reflect the change of the airflow from the outlet to a certain extent, the accuracy is low; in addition, if the length L2 of the filament is too large, the part that exceeds the height L6 of the air outlet is too long. At this time, the dead weight of the filament is large, and the lower ends of different filaments are prone to collide and entangle with each other, which will also affect the accurate reflection of the air conditioning surge state by the air conditioning surge state detection device.

[0022] Furthermore, an adhesion device is provided on the mounting plate, and the mounting plate is adhered above the air outlet through the adhesion device.

[0023] The mounting plate can be conveniently adhered above the air outlet of the air conditioner by the adhesion device without causing damage to the panel of the air conditioner.

[0024] Furthermore, the adhesion device may be a double-sided adhesive adhered to one side of the mounting plate or a suction cup fixed to one side of the mounting plate.

[0025] By providing the double-sided adhesive tape or the suction cup, the mounting plate can be stably adhered above the air outlet during testing, and the double-sided adhesive tape and the suction cup have the advantages of being economical, readily available, and easy to use.

[0026] Furthermore, the material of the mounting plate is PVC or ABS; the material of the filament is polyethylene or polyester.

[0027] PVC and ABS materials have the advantages of light weight and high strength. When used in the air-conditioning surge state detection device, the overall strength of the mounting plate can be higher and more durable. In addition, since air-conditioning surge state detection often needs to be performed at higher temperatures and / or humidity, and polyethylene and polyester materials have good high temperature resistance, high humidity, waterproofness, and corrosion resistance, the use of polyethylene or polyester materials to prepare the filament can reduce the influence of ambient temperature and humidity on the filament.

[0028] To sum up, the air-conditioning surge state detection device described in the present application can not only make a qualitative judgment on whether the air conditioner has a surge phenomenon, but also can quantitatively judge the strength of the surge and the change in the strength of the surge through the changes in the swing of the filament. In addition, it has the advantages of simple structure, easy preparation, low cost, easy use, intuitive and accurate results, and economical and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view structural schematic diagram of the air conditioner surge state detection device according to an embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the top view of the structure of the air conditioner surge state detection device according to an embodiment of the present invention;

[0031] Figure 3 It is a side structural schematic diagram of the air conditioner surge state detection device according to an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1-mounting plate, 10-sub-mounting plate, 11-plate body, 12-clamping portion, 13-insertion portion, 2-filament, 3-air outlet. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] Example 1

[0036] like Figures 1 to 3 As shown, an air conditioning surge state detection device includes a mounting plate 1 and a plurality of filaments 2, one end of the filaments 2 is evenly fixed on the mounting plate 1, and the other end hangs freely by its own gravity and can swing under the action of airflow.

[0037] The air-conditioning surge state detection device described in the present application intuitively reflects the changes in the air flow of the air outlet 3 of the air conditioner by setting a plurality of filaments 2 that can swing with the wind. The swing of the filaments 2 can not only qualitatively determine whether the air conditioner has a surge phenomenon, but also intuitively reflect the surge degree and its changes at different positions and at different times of the same air conditioner or the difference in the surge degree between different air conditioners through the changes in the swing of the filaments 2. The detection personnel can quantitatively determine the changes in the surge degree of the same air conditioner at different positions and at different times and the difference in the surge degree between different air conditioners by observing the changes in the swing of the filaments 2.

[0038] In addition, the air conditioning surge state detection device described in the present application also has the advantages of simple structure, easy preparation, low cost, easy use, intuitive and accurate results, and economical and high efficiency.

[0039] Furthermore, when performing surge state detection of the air conditioner, the mounting plate 1 is fixed above the air outlet 3 of the indoor unit of the air conditioner, and the filament 2 hangs freely from the mounting plate 1 and covers the air outlet 3 .

[0040] The air conditioner surge state detection device described in the present application suspends a plurality of the filaments 2 at the air outlet 3 of the air conditioner through the mounting plate 1, and enables the filaments 2 to swing under the action of the air flow in the air outlet 3 of the air conditioner. When the air conditioner is normally discharged, the air flow discharged from the air outlet 3 is stable, and the filaments 2 are blown by the air flow. The swing amplitude and direction of the different filaments 2 are consistent and fixed. When the air conditioner has a surge phenomenon, the air flow discharged from the air outlet 3 is fluctuating, and the filaments 2 are blown by the air flow, which will produce swings of uncertain directions and amplitudes. Therefore, it can be determined whether the air conditioner has a surge phenomenon by the swing of the filaments 2 with the wind. On this basis, the difference in the surge state between different positions of the air outlet 3 of the same air conditioner can also be determined by comparing the swing of the filaments 2 at different positions of the air outlet 3 of the air conditioner. In addition, by comparing the swing conditions of the filament 2 at different times and at the same position of the air outlet 3 of the air conditioner, the difference in the surging degree of the same air outlet 3 of the air conditioner at different times can be determined. And by comparing the swing conditions of the filament 2 at different air outlets 3 of different air conditioners at different times or at the same time, the difference in the surging degree between different air outlets 3 of the air conditioner can be determined. Generally, the judgment criteria of the air-conditioning surge state detection device described in the present application are: if the swing frequency or swing amplitude of the filament 2 in a certain local area is inconsistent with the overall filament 2, it is determined that surge phenomenon has occurred in the local area; if the overall filament 2 swings in a disorderly manner, it is determined that surge phenomenon has occurred in the air outlet 3 as a whole; and the comparison of the surge degree is determined by the swing amplitude of the filament 2. Generally, the larger the swing amplitude of the filament 2, the stronger the surge degree; in addition, the change in the strength of the surge degree can also be determined by the swing amplitude of the filament 2. Generally, the larger the swing amplitude of the filament 2, the stronger the surge degree, and vice versa.

[0041] Furthermore, the material of the mounting plate 1 is plastic, such as PVC (polyvinyl chloride) or ABS (acrylonitrile-butadiene-styrene copolymer) material, etc. PVC and ABS materials have the advantages of light weight and high strength, and are used in the air conditioner surge state detection device to make the overall strength higher and more durable.

[0042] Further, such as Figure 1 As shown, the length of the mounting plate 1 is recorded as L1, and the length of the air outlet 3 is recorded as L7, then 80% of the length L7 of the air outlet 3 ≤ the length L1 of the mounting plate 1, so that the length L1 of the mounting plate 1 can approach or completely cover the entire length L7 of the air outlet 3 of the air conditioner, so as to comprehensively reflect the changes in the air flow of the air outlet 3 of the air conditioner.

[0043] Preferably, the length L7 of the air outlet 3 is ≤ the length L1 of the mounting plate 1 .

[0044] As some embodiments of the present application, the mounting plate 1 may be a complete plate, and the length L1 of the mounting plate 1 is ≥ the length L7 of the air outlet 3 of the air conditioner.

[0045] As some embodiments of the present application, the mounting plate 1 can also be composed of a plurality of sub-mounting plates 10 that are spliced ​​and assembled together, and a plurality of the filaments 2 are evenly fixed on each of the sub-mounting plates 10, one end of the filament 2 is evenly fixed on the sub-mounting plate 10, and the other end hangs freely due to its own gravity and can swing under the action of airflow.

[0046] Further, such as Figure 1 As shown, the length of the sub-mounting plate 10 is recorded as L5, and the lengths L5 of the sub-mounting plates 10 can be equal or different.

[0047] Furthermore, the sub-mounting board 10 includes a board body 11 and a clamping portion 12 and an inserting portion 13 arranged at two ends of the board body 11. The inserting portion 13 can be inserted into the clamping portion 12 on the adjacent sub-mounting board 10 to connect the two adjacent sub-mounting boards 10 together.

[0048] As some embodiments of the present application, the plug-in portion 13 is a protrusion located at one end of the plate body 11 , and correspondingly, the clamping portion 12 is a groove located at the other end of the plate body 11 .

[0049] The arrangement of the sub-mounting plate 10 and the clamping portion 12 and the plug-in portion 13 can make the length of the air-conditioning surge state detection device variable, the detection range can be flexibly adjusted, and the use is more flexible.

[0050] Further, such as Figure 1As shown, the length of the filament 2 hanging from the lower end of the mounting plate 1 is recorded as L2, and the height of the air outlet 3 is recorded as L6, then 1 / 2 of the height L6 of the air outlet 3 ≤ the length L2 of the filament 2 ≤ 3 / 2 of the height L6 of the air outlet 3. If the length L2 of the filament 2 is too small, most of the air flow from the air outlet 3 will be discharged from the area not covered by the filament 2, and a small amount of air flow will be discharged through the gaps between the filaments 2. At this time, although the swing of the filament 2 can reflect the change of the air flow from the air outlet 3 to a certain extent, the accuracy is low. In addition, if the length L2 of the filament 2 is too large, the part exceeding the height L6 of the air outlet 3 is too long. At this time, the dead weight of the filament 2 is relatively large, and the lower ends of different filaments 2 are prone to collide and entangle with each other, which will also affect the accurate reflection of the air conditioning surge state by the air conditioning surge state detection device.

[0051] Furthermore, the filament 2 is made of polyethylene or polyester material. Since the air conditioning surge state detection often needs to be carried out at a higher temperature and / or humidity, and polyethylene and polyester materials have good high temperature resistance, high humidity, waterproofness, and corrosion resistance, the filament 2 is made of polyethylene or polyester material, which can reduce the influence of the ambient temperature and humidity on the filament 2.

[0052] Preferably, the distance between two adjacent filaments 2 is recorded as L4, and the value range of L4 is 1 to 10 mm.

[0053] More preferably, L4 is 5 mm.

[0054] Preferably, the weight of the filament 2 should be set appropriately, specifically, when the air flow velocity of the air outlet 3 increases or decreases by 0.1 m / h, the swing angle of the filament 2 should change by ≥0.1 degrees.

[0055] Furthermore, the height of the mounting plate 1 is recorded as L3, and the value range of L3 is 3 to 30 cm.

[0056] Furthermore, an adhesive device is provided on the mounting plate 1, through which the mounting plate 1 can be conveniently adhered above the air outlet 3 of the air conditioner without causing damage to the panel of the air conditioner.

[0057] As some embodiments of the present application, the adhesion device may be a double-sided tape adhered to one side of the mounting plate 1 . During testing, the mounting plate 1 is stably adhered above the air outlet 3 by the double-sided tape.

[0058] As some embodiments of the present application, the adhesion device can also be a suction cup fixed to one side of the mounting plate 1. During testing, the mounting plate 1 is stably adsorbed above the air outlet 3 by the suction cup.

[0059] To sum up, the air-conditioning surge state detection device described in the present application can not only make a qualitative judgment on whether the air conditioner has a surge phenomenon, but also can quantitatively judge the strength of the surge and the change in the strength of the surge through the changes in the swing of the filament 2. In addition, it has the advantages of simple structure, easy preparation, low cost, easy use, intuitive and accurate results, and economical and efficient.

[0060] Although the present invention is disclosed as above, the present invention is not limited thereto. In the description of this specification, the description of reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. An air conditioner surge state detection device, characterized in that: The invention comprises a mounting plate (1) and a plurality of filaments (2), one end of the filaments (2) being evenly spaced and fixed to the mounting plate (1), the other end of which is free to hang down by its own gravity and can swing under the action of airflow; when performing surge state detection of an air conditioner, the mounting plate (1) is fixed above an air outlet (3) of an indoor unit of the air conditioner, the filaments (2) are free to hang down from the mounting plate (1) and cover the air outlet (3); the mounting plate (1) is composed of a plurality of sub-mounting plates (10) assembled together, each of the sub-mounting plates (10) having a plurality of filaments (2) evenly spaced and fixed to it; one end of the filaments (2) is evenly spaced and fixed to the sub-mounting plate (10), the other end of which is free to hang down by its own gravity and can swing under the action of airflow.

2. The air conditioner surge state detection device according to claim 1, characterized in that: The sub-mounting plate (10) comprises a plate body (11) and a clamping portion (12) and an inserting portion (13) arranged at two ends of the plate body (11) opposite to each other, wherein the inserting portion (13) can be inserted into the clamping portion (12) on an adjacent sub-mounting plate (10) to connect two adjacent sub-mounting plates (10) together.

3. The air conditioner surge state detection device according to claim 1, characterized in that: The length of the mounting plate (1) is recorded as L1, and the length of the air outlet (3) is recorded as L7, then L7*80%≤L1.

4. The air conditioner surge state detection device according to claim 1, characterized in that: The length of the filament (2) hanging down from the lower end of the mounting plate (1) is recorded as L2, and the height of the air outlet (3) is recorded as L6, then L6*1 / 2≤L2≤L6*3 / 2.

5. The air conditioner surge state detection device according to claim 1, characterized in that: An adhesion device is provided on the installation plate (1), and the installation plate (1) is adhered above the air outlet (3) through the adhesion device.

6. The air conditioner surge state detection device according to claim 5, characterized in that: The adhesion device is a double-sided adhesive adhered to one side of the mounting plate (1) or a suction cup fixed to one side of the mounting plate (1).

7. The air conditioner surge state detection device according to claim 1, characterized in that: The material of the mounting plate (1) is PVC or ABS; the material of the filament (2) is polyethylene or polyester.

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