A pipeline vibration sensing device and air conditioner assembly

Abstract

The present application relates to a kind of pipeline vibration sensing device and air conditioner assembly.The sensing device includes: fixed seat;And vibration sensing unit, setting in fixed seat, vibration sensing unit includes: fixed column, lower end of fixed column is fixed to fixed seat;Spring, sleeve is set in the fixed column;First metal plate, pass through the fixed column and support on the spring, the first metal plate is provided with first metal spring leaf, and the first metal spring leaf is used to connect first terminal;Second metal plate, the second metal plate is fixed to the fixed seat, the second metal plate is provided with second metal spring leaf, the first metal spring leaf and the second metal spring leaf are arranged in upper and lower, and the second metal spring leaf is used to connect second terminal, and the second terminal is opposite with the first terminal electrode;Wherein, the first metal spring leaf and the second metal spring leaf are used to contact in the vibration state to be sensed in the vibration pipeline to electrically conductive.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and in particular to a pipeline vibration sensing device and an air conditioner component. Background Technology

[0002] Air conditioners are widely used in daily life and are an indispensable household appliance. Air conditioners use refrigerant for heat exchange, and the refrigerant flows in the air conditioner's pipes. During the operation of an air conditioner, the compressor's frequency vibration can cause resonance in the air conditioning pipes. If the vibration reaches a certain level, it may cause the air conditioning pipes to burst, resulting in refrigerant leakage. Refrigerant is flammable, explosive, and toxic. In severe cases, refrigerant leakage can cause fires, endangering people's lives and property.

[0003] Currently, to address the issue of pipe resonance, stress-strain experiments are conducted at the initial stage of air conditioner development and design to test the impact of compressor operating frequency on the air conditioning pipes. Then, the compressor operating frequency points that have the greatest impact on pipe resonance are shielded in the program to protect the pipes.

[0004] The above approach has drawbacks. When conducting stress-strain tests, designers need to use latex to attach stress-strain lines for the experiment to the internal pipes of the air conditioner. These lines are then connected to specialized equipment via a converter to detect the resonance state between the compressor and the pipes. This approach is highly dependent on environmental and equipment conditions, causes significant damage to the prototype, and has a long testing cycle. Furthermore, if the designer operates improperly or is not skilled in attaching the lines, the stress-strain lines may become unstable and easily fall off, resulting in inaccurate experimental results and affecting product quality. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a pipeline vibration sensing device, which is installed on the pipeline inside the air conditioner that needs to be sensed. By connecting to the air conditioner controller, the resonant state of the pipeline under the compressor frequency is collected in real time, so as to achieve convenient, fast, efficient and accurate detection.

[0006] This invention provides a pipeline vibration sensing device, comprising: a fixed base for fixing on a pipeline to be vibrated; and a vibration sensing unit disposed on the fixed base, the vibration sensing unit comprising: a fixed column, the lower end of which is fixed to the fixed base; a spring sleeved on the fixed column; a first metal plate passing through the fixed column and supported on the spring, the first metal plate being provided with a first metal spring sheet for connecting to a first terminal; and a second metal plate fixed to the fixed base, the second metal plate being provided with a second metal spring sheet, the first and second metal spring sheets being arranged vertically, the second metal spring sheet being used to connect to a second terminal, the second terminal having electrodes opposite to those of the first terminal; wherein the first and second metal spring sheets are used to contact each other to conduct electricity when the pipeline to be vibrated is in a vibrating state.

[0007] In some embodiments, the fixing post includes a first fixing post and a second fixing post, which are spaced apart in the width direction of the fixing base; the left side of the first metal plate passes through the first fixing post, and the right side of the first metal plate passes through the second fixing post; the spring includes a first spring and a second spring, the first spring is sleeved on the first fixing post, and the second spring is sleeved on the second fixing post, and the first spring and the second spring together support the first metal plate; wherein, the first metal spring and the second metal spring are located between the first fixing post and the second fixing post.

[0008] In some embodiments, the first metal plate is provided with a through hole for passing through the fixing post, wherein the diameter of the through hole is larger than the outer diameter of the fixing post.

[0009] In some embodiments, the first metal spring and the second metal spring are at least partially facing each other, and the first metal spring and / or the second metal spring have an acute angle with the horizontal plane.

[0010] In some embodiments, the first metal spring includes a first connecting end connected to the first metal plate and a first free end extending in a downward direction, wherein the first connecting end is higher than the first free end; the second metal spring includes a second connecting end connected to the second metal plate and a second free end extending in a downward direction, wherein the second connecting end is lower than the second free end, and the first metal spring and the second metal spring are parallel.

[0011] In some embodiments, the device further includes: a housing disposed on the mounting base and forming a receiving space with the mounting base; the vibration sensing unit is located within the receiving space, wherein the upper end of the mounting post extends to the inner top wall of the housing.

[0012] In some embodiments, a limiting ring is fitted onto the upper end of the fixing post. The limiting ring is located between the inner top wall of the housing and the first metal plate, and is used to limit the extension length of the spring.

[0013] In some embodiments, the fixing base includes a rigid rubber base, the top wall of which is provided with a rubber isolation sheet, and the lower end of the fixing post extends into and is fixed within the rubber isolation sheet.

[0014] In some embodiments, the device further includes a fixing ring disposed at the bottom of the fixing base, wherein the bottom surface of the fixing base is adapted to the shape of the outer peripheral surface of the fixing ring.

[0015] In some embodiments, the bottom surface of the fixing base wraps around the outer circumferential surface of the fixing ring and is located below the horizontal center line of the fixing ring.

[0016] In some embodiments, a plurality of vibration sensing units are provided, and the plurality of vibration sensing units are arranged at intervals along the length direction of the fixed base.

[0017] The present invention also provides an air conditioner assembly, including: a pipeline vibration sensing device as described in any of the above embodiments.

[0018] In some embodiments, the outdoor unit of the air conditioner includes a compressor, an outdoor heat exchanger, and a controller; the indoor unit of the air conditioner includes an indoor heat exchanger, wherein the compressor, the indoor heat exchanger, and the indoor heat exchanger are connected by a pipeline; the mounting base of the pipeline vibration sensing device is fixed on the pipeline to be detected, the first metal spring is electrically connected to the controller through the first terminal, and the second metal spring is electrically connected to the controller through the second terminal.

[0019] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0020] The pipeline vibration sensing device of the present invention is installed on the pipeline inside the air conditioner that needs to be sensed. By connecting to the air conditioner controller, it collects the resonance state of the pipeline in real time under the operating frequency of the compressor, so as to achieve convenient, fast, efficient and accurate detection.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0022] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0023] Figure 1 This is a perspective view of a pipeline vibration sensing device according to an exemplary embodiment of the present invention;

[0024] Figure 2 This is a front view schematic diagram of a pipeline vibration sensing device according to an exemplary embodiment of the present invention;

[0025] Figure 3 This is a side view schematic diagram of a pipeline vibration sensing device according to an exemplary embodiment of the present invention;

[0026] Figure 4 This is a top view schematic diagram of a pipeline vibration sensing device according to an exemplary embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of an outdoor unit of an air conditioner according to an exemplary embodiment of the present invention;

[0028] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0029] In the description of this invention, it should be noted that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "contact," and "communication" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] like Figures 1-5As shown, the present invention provides a pipeline vibration sensing device, including: a fixed base 10 and a vibration sensing unit.

[0032] The mounting base 10 is used to fix the pipe 200 to be vibrated. The vibration sensing unit is disposed on the mounting base 10. The vibration generated by the pipe 200 to be vibrated is transmitted to the mounting base 10, and then the vibration sensing unit senses the resonant state of the pipe 200 to be vibrated at the compressor frequency.

[0033] The vibration sensing unit includes: a fixed post 21, a spring 22, a first metal plate 23, and a second metal plate 24. The lower end of the fixed post 21 is fixed to a fixed base 10; the spring 22 is sleeved on the fixed post 21; the first metal plate 23 passes through the fixed post 21 and is supported on the spring 22, and the first metal plate 23 is provided with a first metal spring 231 for connecting to a first terminal; the second metal plate 24 is fixed to the fixed base 10, and the second metal plate 24 is provided with a second metal spring 241. The first metal spring 231 and the second metal spring 241 are arranged vertically, and the second metal spring 241 is used to connect to a second terminal, the electrodes of which are opposite to those of the first terminal; wherein, the first metal spring 231 and the second metal spring 241 are in contact to conduct electricity when the vibration-sensing pipeline 200 is vibrating. For example, the first metal spring 231 and the second metal spring 241 are connected to the controller of the outdoor unit of the air conditioner through the first terminal and the second terminal, respectively. The first terminal can be connected to the negative terminal of the controller's 3.3V power supply, and the second terminal can be connected to the positive terminal of the controller's 3.3V power supply.

[0034] When it is necessary to detect the resonance at a critical location in the air conditioner's piping, the piping vibrates, causing the mounting base 10 to vibrate as well. The second metal plate 24 and the second metal spring 241, fixed to the mounting base 10, vibrate along with the mounting base. The springs supporting the first metal plate 23 and the first metal spring 231 reciprocate through stretching and contraction, causing the second metal spring 241 to approach the first metal spring 231 and make contact, thus establishing electrical conductivity. The positive and negative terminals are energized, and one vibration frequency is recorded. The controller can detect the resonance state of the vibrating piping 200 and the compressor in real time, improving product development speed. Furthermore, it is less constrained by environmental equipment and does not require stress-strain lines and specialized laboratory equipment as in traditional stress-strain experiments. The piping vibration sensing device of this invention is installed on the piping, so it is minimally affected by human operation in stress-strain experiments, eliminating the possibility of inaccurate experimental results. Since no stress-strain lines are involved in the experiment, there is virtually no damage to the air conditioner itself, and there is no issue of metal wire residue remaining on the piping after removing stress-strain lines, which could affect subsequent EMC and other tests on the prototype.

[0035] In some embodiments, the fixing post 21 includes a first fixing post and a second fixing post, which are spaced apart in the width direction of the fixing base, which is the left-right direction shown in the figure. The left side of the first metal plate 23 passes through the first fixing post, and the right side of the first metal plate 23 passes through the second fixing post. The spring 22 includes a first spring and a second spring, with the first spring sleeved on the first fixing post and the second spring sleeved on the second fixing post, and the first spring and the second spring jointly supporting the first metal plate 23; wherein, the first metal spring piece 231 and the second metal spring piece 241 are located between the first fixing post and the second fixing post.

[0036] In some embodiments, the first metal plate 23 is provided with a through hole 233 for the fixed post 21 to pass through, wherein the diameter R of the through hole 233 is larger than the outer diameter of the fixed post 21. For example, the diameter (outer diameter) of the fixed post 21 is smaller than the diameter of the opening in the first metal plate 23, and the size can be between R / 3 and 2R / 3. This allows for a certain amount of movement between the fixed post 21 and the first metal plate 23. The diameter of the through hole 233 is smaller than the top end of the spring 22 to better support the first metal plate. The first metal spring 231 and the second metal spring 241 are at least partially facing each other, and the first metal spring 231 and / or the second metal spring 241 have an acute angle with the horizontal plane. This allows the first metal spring 231 and the second metal spring 241 to make contact and conduct electricity in different vibration directions when the spring 22 is in a stretching and contracting motion, thereby sensing vibration states in different directions.

[0037] As an example, such as Figure 2 As shown, the first metal spring 231 includes a first connecting end connected to the first metal plate 23 and a first free end extending obliquely downward, wherein the first connecting end is higher than the first free end; the second metal spring 241 includes a second connecting end connected to the second metal plate 24 and a second free end extending obliquely upward, wherein the second connecting end is lower than the second free end, and the first metal spring 231 and the second metal spring 241 are parallel. This ensures that the first metal spring 231 and the second metal spring 241 can make contact and conduct electricity in different vibration directions.

[0038] The structure and positional relationship of the first metal spring 231 and the second metal spring 241 in this invention are such that when the spring 22 vibrates left and right within a small range, the first metal spring 231 and the second metal spring 241 will also swing left and right and make contact, which will also cause the power supply to form a circuit and send a signal to the controller once, which is recorded as one vibration.

[0039] In some embodiments, the pipeline vibration sensing device further includes: a housing 12 disposed on a mounting base 10 and forming a receiving space with the mounting base 10; a vibration sensing unit located within the receiving space, wherein the upper end of the fixing post 21 extends to the inner top wall of the housing 12. The fixing post 21 extends vertically (up and down) in a columnar shape. The housing 12 may be a rigid housing.

[0040] In some embodiments, a limiting ring 232 is sleeved on the upper end of the fixing post 21. The limiting ring 232 is located between the inner top wall of the outer shell 12 and the first metal plate 23, and is used to limit the extension length of the spring 22 and prevent the first metal plate 23 from detaching from the fixing post 21.

[0041] In some embodiments, the fixing base 10 includes a rigid rubber base, the top wall of which is provided with a rubber isolation sheet 11, and the lower end of the fixing post 21 extends into and is fixed within the rubber isolation sheet 11.

[0042] In some embodiments, the pipeline vibration sensing device further includes a fixing ring 13 disposed at the bottom of the fixing base 10. The fixing ring 13 may be a fixing copper ring for mounting on the outer peripheral wall of the pipeline. The bottom surface of the fixing base 10 is adapted to the shape of the outer peripheral surface of the fixing ring 13. For example, the bottom surface of the fixing base 10 may be annular and cover half of the outer circumference of the fixing ring 13. The bottom surface of the fixing base 10 wraps around the outer peripheral surface of the fixing ring 13 and is located below the horizontal centerline of the fixing ring 13, that is, both sides of the bottom surface of the fixing base 10 extend below the horizontal centerline of the fixing ring 13. Preferably, the fixing base 10 preferably wraps around half of the fixing ring 13, or between 2 / 5 and 3 / 5 of the area of ​​the fixing ring circumference, to better transfer vibration.

[0043] Specifically, the fixing copper ring extends downwards and has fixing screw holes. Different sizes of fixing copper rings can be set according to the size of the pipeline to firmly fix the electrical control pipeline vibration sensing device on the pipeline.

[0044] In some embodiments, multiple vibration sensing units are provided, and the multiple vibration sensing units are arranged at intervals along the longitudinal direction of the fixing base 10, wherein the longitudinal direction of the fixing base 10 is... Figure 4 The front-to-back direction can also be the extension direction of the pipeline. For example, three vibration sensing units are set, located on both sides and the middle of the length of the fixed base 10, to detect the vibration status of the pipeline in different directions and positions.

[0045] In summary, the pipeline vibration sensing device of the present invention can be installed on critical pipelines inside an air conditioner. Preferably, the device can be installed directly above or below the pipeline and secured with fixing screws and nuts. It can then be connected to a controller for power supply and control, enabling real-time detection of the resonance state between the air conditioning pipeline and the compressor, thus improving product development speed. It is less constrained by environmental equipment and does not require stress-strain lines and specialized laboratory equipment as in traditional stress-strain experiments. Since it is installed on the pipeline as a device, it is minimally affected by human operation during stress-strain experiments, eliminating the possibility of inaccurate results. Because no stress-strain lines are involved in the experiment, there is virtually no damage to the prototype, and there are no metal wire residues left on the pipeline after removing stress-strain lines, which could affect subsequent EMC and other tests.

[0046] The present invention also provides an air conditioner assembly, including: a pipeline vibration sensing device as described in any of the above embodiments.

[0047] like Figure 5 As shown, the air conditioner assembly also includes an outdoor unit and an indoor unit. The outdoor unit includes a compressor 220, an outdoor heat exchanger, and a controller 210. The indoor unit includes an indoor heat exchanger, wherein the compressor 220, the indoor heat exchanger, and the outdoor heat exchanger are connected by a pipe 200. The mounting base 10 of the pipe vibration sensing device is fixed on the pipe 200 to be tested. The first metal spring 231 is electrically connected to the controller 210 through a first terminal, and the second metal spring 241 is electrically connected to the controller 210 through a second terminal 242.

[0048] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0049] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0050] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0051] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0052] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A pipeline vibration sensing device, characterized in that, include: A mounting bracket is used to fix the pipe to be vibrated. as well as A vibration sensing unit is disposed on the fixed base, and the vibration sensing unit includes: A fixing column, the lower end of which is fixed to the fixing base; A spring is fitted onto the fixed post; A first metal plate passes through the fixed post and is supported on the spring. The first metal plate is provided with a first metal spring piece, which is used to connect to a first terminal. A second metal plate is fixed to the fixing base. The second metal plate is provided with a second metal spring. The first metal spring and the second metal spring are arranged vertically. The second metal spring is used to connect to a second terminal. The electrodes of the second terminal are opposite to those of the first terminal. The first metal spring and the second metal spring are used to make contact to conduct electricity when the pipeline to be sensed is vibrating. The pipeline vibration sensing device further includes: The outer casing is disposed on the fixing base and forms a receiving space with the fixing base; The vibration sensing unit is located within the accommodating space, wherein the upper end of the fixing post extends to the inner top wall of the housing; a limiting ring is sleeved on the upper end of the fixing post, the limiting ring being located between the inner top wall of the housing and the first metal plate, for limiting the extension length of the spring.

2. The pipeline vibration sensing device according to claim 1, characterized in that, The fixing column includes a first fixing column and a second fixing column, and the first fixing column and the second fixing column are spaced apart in the width direction of the fixing seat; The left side of the first metal plate passes through the first fixing post, and the right side of the first metal plate passes through the second fixing post; The spring includes a first spring and a second spring. The first spring is sleeved on the first fixed post, and the second spring is sleeved on the second fixed post. The first spring and the second spring together support the first metal plate. The first metal spring and the second metal spring are located between the first fixed post and the second fixed post.

3. The pipeline vibration sensing device according to claim 1 or 2, characterized in that, The first metal plate is provided with a through hole for passing through the fixing post, wherein the diameter of the through hole is larger than the outer diameter of the fixing post.

4. The pipeline vibration sensing device according to claim 3, characterized in that, The first metal spring and the second metal spring are at least partially facing each other, and the first metal spring and / or the second metal spring have an acute angle with the horizontal plane.

5. The pipeline vibration sensing device according to claim 4, characterized in that, The first metal spring includes a first connecting end connected to the first metal plate and a first free end extending in a downward direction, wherein the first connecting end is higher than the first free end; The second metal spring includes a second connecting end connected to the second metal plate and a second free end extending obliquely upward, wherein the second connecting end is lower than the second free end, and the first metal spring and the second metal spring are parallel.

6. The pipeline vibration sensing device according to claim 1, characterized in that, The fixing base includes a rigid rubber base, and a rubber isolation sheet is provided on the top wall of the rigid rubber base. The lower end of the fixing column extends into and is fixed in the rubber isolation sheet.

7. The pipeline vibration sensing device according to claim 1, characterized in that, Also includes: A fixing ring is disposed at the bottom of the fixing base, wherein the bottom surface of the fixing base is adapted to the shape of the outer peripheral surface of the fixing ring.

8. The pipeline vibration sensing device according to claim 7, characterized in that, The bottom surface of the fixing base wraps around the outer circumference of the fixing ring and is located below the horizontal center line of the fixing ring.

9. The pipeline vibration sensing device according to claim 1, characterized in that, Multiple vibration sensing units are provided, and the multiple vibration sensing units are arranged at intervals along the length direction of the fixed base.

10. An air conditioner assembly, characterized in that, include: The pipeline vibration sensing device as described in any one of claims 1-9.

11. The air conditioner assembly according to claim 10, characterized in that, An air conditioner outdoor unit includes a compressor, an outdoor heat exchanger, and a controller; An air conditioning indoor unit includes an indoor heat exchanger, wherein the compressor, the indoor heat exchanger, and the indoor heat exchanger are connected by pipes; The mounting base of the pipeline vibration sensing device is fixed on the pipeline to be tested. The first metal spring is electrically connected to the controller through the first terminal, and the second metal spring is electrically connected to the controller through the second terminal.

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