Anti-clogging electronic expansion valve, air conditioner and control method

CN116857423BActive Publication Date: 2026-09-15QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
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Patent Information

Application Number
CN202310966773.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-02
Publication Date
2026-09-15
Estimated Expiration
2043-08-02

AI Technical Summary

Technical Problem

[0005]本申请提供了一种防堵塞的电子膨胀阀、空调及控制方法,以解决电子膨胀阀卡住或堵塞,导致空调制冷失效的问题

Benefits of technology

[0020] This application provides an anti-clogging electronic expansion valve, an air conditioner, and a control method. The anti-clogging electronic expansion valve has a vibrator installed on the body of the electronic expansion valve, and the outlet flow of the electronic expansion valve is detected by a detection element. When the outlet flow of the electronic expansion valve body is less than or equal to a preset value, the controller controls the vibrator to vibrate, thereby driving the electronic expansion valve body to vibrate, overcoming the resistance of the valve core movement of the electronic expansion valve body, opening the valve, and increasing the outlet flow. This reduces the possibility of the electronic expansion valve body getting stuck or blocked, thus ensuring the use of the air conditioner.

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Abstract

The application belongs to the technical field of air conditioners, and particularly relates to an anti-blocking electronic expansion valve, an air conditioner and a control method. The anti-blocking electronic expansion valve comprises an electronic expansion valve body, a vibrator, a detection piece and a controller. The vibrator is connected with the electronic expansion valve body to drive the electronic expansion valve body to vibrate, and the vibrator is electrically connected with the controller. The detection piece is used for detecting the outlet flow of the electronic expansion valve body, and the detection piece and the vibrator are both electrically connected with the controller. When the outlet flow of the electronic expansion valve body is less than or equal to a preset value, the controller controls the vibrator to vibrate to drive the electronic expansion valve body to vibrate to increase the outlet flow. The anti-blocking electronic expansion valve of the application reduces the blocking of the electronic expansion valve and has the effect of maintaining the refrigeration capacity of the air conditioner.
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Description

Technical Field

[0001] This application belongs to the field of air conditioning technology, specifically relating to an anti-clogging electronic expansion valve, an air conditioner, and a control method. Background Technology

[0002] With economic development and the continuous improvement of people's living standards, air conditioners have entered thousands of households. Air conditioners typically use electronic expansion valves to control the flow of refrigerant.

[0003] In traditional technology, the internal structure of an electronic expansion valve is a precision component. A controller formed by a coil is fitted on the outside of the electronic expansion valve, and the opening and closing of the electronic expansion valve is controlled by controlling the energization of the coil.

[0004] When tiny particles of dirt enter the refrigerant pipe of an air conditioner, they can cause wear on the valve core of the electronic expansion valve, resulting in loss of lubrication from the system's refrigerant oil. This can lead to the electronic expansion valve getting stuck or blocked. If the original controller's driving torque is less than the frictional resistance of the valve core, the valve will fail to open, causing the air conditioner to malfunction and lose its cooling capacity. Summary of the Invention

[0005] This application provides an anti-clogging electronic expansion valve, an air conditioner, and a control method to solve the problem of air conditioner refrigeration failure caused by the electronic expansion valve being stuck or blocked.

[0006] In a first aspect, this application provides an anti-clogging electronic expansion valve, including an electronic expansion valve body, a vibrator, a detection element, and a controller;

[0007] The vibrator is connected to the electronic expansion valve body to drive the electronic expansion valve body to vibrate, and the vibrator is electrically connected to the controller; the detection element is used to detect the outlet flow of the electronic expansion valve body, and both the detection element and the vibrator are electrically connected to the controller;

[0008] When the outlet flow rate of the electronic expansion valve body is less than or equal to a preset value, the controller controls the vibrator to vibrate, thereby driving the electronic expansion valve body to vibrate and increasing the outlet flow rate.

[0009] In the preferred embodiment of the above-mentioned anti-clogging electronic expansion valve, the controller controls the vibrator to stop vibrating when the detection element detects that the outlet flow rate is greater than the preset value.

[0010] In the preferred embodiment of the above-mentioned anti-clogging electronic expansion valve, the vibrator is a vibration motor.

[0011] In the preferred embodiment of the above-mentioned anti-clogging electronic expansion valve, the electronic expansion valve body includes a housing, a coil, a rotor, a valve stem, a valve seat, a threaded post, a connecting seat, and an anti-jamming assist component. The housing has a valve cavity, the valve seat is located inside the valve cavity, the threaded post is fixed inside the housing, the valve stem passes through the threaded post, and the valve stem has a first end and a second end. The first end passes through the valve cavity and engages with the valve seat to open and close the valve cavity, and the second end is connected to the connecting seat. The rotor is threaded onto the threaded post and connected to the connecting seat. Both ends of the rotor have gaps with the housing to provide space for the rotor to move axially along the housing. The coil is disposed on the housing to drive the rotor to rotate. The anti-jamming assist component is disposed on the rotor and is used to assist the rotor in its movement when the vibrator vibrates.

[0012] In the preferred embodiment of the above-mentioned anti-clogging electronic expansion valve, the anti-jamming assist component includes multiple auxiliary blocks, and multiple placement cavities are provided inside the rotor. The placement cavities extend along the axial direction of the housing, and the length of the placement cavity is greater than the length of the auxiliary block. The auxiliary block is slidably disposed in the placement cavity.

[0013] In the preferred embodiment of the above-mentioned anti-clogging electronic expansion valve, a mounting base is also included. A connecting plate is provided on the electronic expansion valve body, and a mounting groove is provided on the mounting base. The connecting plate is inserted into the mounting groove, and elastic elements are provided on both sides of the connecting plate. The elastic elements are connected to the groove wall of the mounting groove.

[0014] In the preferred embodiment of the above-mentioned anti-clogging electronic expansion valve, a mounting block is provided on the electronic expansion valve body, the vibrator is disposed on the mounting block, and the mounting block is detachably connected to the electronic expansion valve body.

[0015] Secondly, this application provides a control method for an anti-clogging electronic expansion valve, comprising the following steps:

[0016] Detect the outlet flow rate of the electronic expansion valve body;

[0017] When the outlet flow rate is less than or equal to a preset value, the vibrator is controlled to vibrate, thereby causing the electronic expansion valve body to vibrate and increasing the outlet flow rate.

[0018] In a preferred embodiment of the above control method, when the outlet flow rate is greater than the preset value, the vibrator is controlled to stop vibrating.

[0019] Thirdly, this application provides an air conditioner, including an air conditioner body and the aforementioned anti-clogging electronic expansion valve disposed on the air conditioner body.

[0020] This application provides an anti-clogging electronic expansion valve, an air conditioner, and a control method. The anti-clogging electronic expansion valve has a vibrator installed on the body of the electronic expansion valve, and the outlet flow of the electronic expansion valve is detected by a detection element. When the outlet flow of the electronic expansion valve body is less than or equal to a preset value, the controller controls the vibrator to vibrate, thereby driving the electronic expansion valve body to vibrate, overcoming the resistance of the valve core movement of the electronic expansion valve body, opening the valve, and increasing the outlet flow. This reduces the possibility of the electronic expansion valve body getting stuck or blocked, thus ensuring the use of the air conditioner. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] Figure 1 This is a schematic diagram of the anti-clogging electronic expansion valve provided in the embodiments of this application;

[0023] Figure 2 yes Figure 1 Cross-sectional view of the mounting structure of the electronic expansion valve body;

[0024] Figure 3 yes Figure 1 A schematic diagram of the installation structure of the electronic expansion valve body;

[0025] Figure 4 This is a partial cross-sectional view of the body of the electronic expansion valve in type 3;

[0026] Figure 5 This is a flowchart of the control method for the anti-clogging electronic expansion valve of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. Electronic expansion valve body;

[0029] 110. Connecting plate;

[0030] 111. Limiting ring;

[0031] 120. Housing; 121. Valve chamber; 122. Adjustment chamber; 130. Coil; 140. Rotor; 141. Placement chamber; 150. Valve stem; 160. Valve seat; 170. Threaded post; 180. Connecting seat; 190. Auxiliary block;

[0032] 200. Vibrator;

[0033] 300. Mounting bracket;

[0034] 310. Mounting slot;

[0035] 320. Limit block;

[0036] 330. Elastic components;

[0037] 400. Installation block.

[0038] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein.

[0041] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0042] With economic development and the continuous improvement of people's living standards, air conditioners have entered thousands of households. Air conditioners typically use electronic expansion valves to control the flow of refrigerant.

[0043] In traditional technology, the internal structure of an electronic expansion valve is a precision component. A controller formed by a coil is fitted on the outside of the electronic expansion valve, and the opening and closing of the electronic expansion valve is controlled by controlling the energization of the coil.

[0044] When tiny particles of dirt enter the refrigerant pipe of an air conditioner, they can cause wear on the valve core of the electronic expansion valve, resulting in loss of lubrication from the system's refrigerant oil. This can lead to the electronic expansion valve getting stuck or blocked. If the original controller's driving torque is less than the frictional resistance of the valve core, the valve will fail to open, causing the air conditioner to malfunction and lose its cooling capacity.

[0045] To address the aforementioned issues, this application provides an anti-clogging electronic expansion valve, an air conditioner, and a control method. The anti-clogging electronic expansion valve incorporates a vibrator mounted on its body. A detection element monitors the outlet flow rate of the electronic expansion valve. When the outlet flow rate is less than or equal to a preset value, the controller controls the vibrator to vibrate, thereby causing the electronic expansion valve body to vibrate. This overcomes the resistance to the valve core movement, opening the valve and increasing the outlet flow rate. This reduces the likelihood of the electronic expansion valve body getting stuck or blocked, ensuring the air conditioner's operation. Furthermore, an elastic element buffers the electronic expansion valve body, minimizing the impact of vibration on its normal operation.

[0046] The technical solution of this application and how it solves the above-mentioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0047] In a first aspect, this application provides an anti-clogging electronic expansion valve, referring to... Figure 1 and Figure 2 It includes an electronic expansion valve body 100, a vibrator 200, a detection element, and a controller.

[0048] The vibrator 200 is connected to the electronic expansion valve body 100 to drive the electronic expansion valve body 100 to vibrate. The vibrator 200 is electrically connected to the controller. The detection element is used to detect the outlet flow of the electronic expansion valve body 100. Both the detection element and the vibrator 200 are electrically connected to the controller.

[0049] When the outlet flow rate of the electronic expansion valve body 100 is less than or equal to a preset value, the controller controls the vibrator 200 to vibrate, thereby driving the electronic expansion valve body 100 to vibrate and increase the outlet flow rate.

[0050] Specifically, a detection element is installed at the outlet end of the electronic expansion valve body 100 to detect the outlet flow rate of the electronic expansion valve body 100. By detecting the outlet flow rate of the electronic expansion valve body 100, the degree of opening of the electronic expansion valve body 100 is indirectly determined. When the outlet flow rate of the electronic expansion valve body 100 is less than or equal to a preset value, it can be concluded that the valve core opening is restricted, there is a blockage between the valve core and the electronic expansion valve body 100, or the valve core is stuck. At this time, the controller controls the vibrator 200 to vibrate, and the vibrator 200 drives the electronic expansion valve body 100 to vibrate, thereby driving the valve core to vibrate, achieving the purpose of moving the valve core, and indirectly achieving the effect of clearing the blockage, so that the electronic expansion valve body 100 can work normally to ensure the normal operation of the air conditioner.

[0051] In some embodiments, the detection element may also be an action sensor that directly detects whether the valve core of the electronic expansion valve body 100 has moved to the correct position. The action sensor directly detects the movement amplitude of the valve core of the electronic expansion valve body 100 to determine the valve opening degree of the electronic expansion valve body 100, and compares it with a preset value. When the movement amplitude of the valve core is less than or equal to the preset value, the controller controls the vibrator 200 to vibrate to increase the outlet flow rate, so that the electronic expansion valve releases a sufficient amount of refrigerant, thereby ensuring the cooling effect of the air conditioner.

[0052] Furthermore, the detection element continuously monitors the outlet flow of the electronic expansion valve body 100. When the detection element detects that the outlet flow is greater than a preset value, the controller controls the vibrator 200 to stop vibrating.

[0053] Therefore, the controller will only control the vibrator 200 to vibrate when the outlet flow rate is less than or equal to the preset value, thereby reducing the impact of the vibrator 200 on the normal use of the electronic expansion valve, avoiding damage or detachment of the electronic expansion valve due to excessive vibration, and also reducing the noise caused by vibration.

[0054] In some embodiments, the vibrator 200 is a vibration motor. The vibration motor can be a general-purpose vibration motor or a button-type vibration motor; no further restrictions are imposed here, and different types of vibration motors can be selected according to the actual installation location.

[0055] In the embodiments of this application, the detection element is a flow sensor. The flow sensor is installed at the outlet end of the electronic expansion valve body 100 to monitor the flow rate at the outlet end. The flow sensor is electrically connected to the controller so as to indirectly reflect the opening degree of the valve core by monitoring the outlet flow rate of the electronic expansion valve.

[0056] Reference Figure 3 and Figure 4 The electronic expansion valve body 100 includes a housing 120, a coil 130, a rotor 140, a valve stem 150, a valve seat 160, a threaded post 170, a connecting seat 180, and an anti-jamming assist component.

[0057] Specifically, the housing 120 has a valve chamber 121 and an adjusting chamber 122. The valve chamber 121 has an outlet end and an inlet end. The valve seat 160 is located inside the valve chamber 121, and the threaded post 170 is fixed inside the adjusting chamber 122 of the housing 120 and is coaxially arranged with the housing 120. The valve stem 150 passes through the threaded post 170, with both ends of the valve stem 150 extending out of the threaded post 170 and sliding within it. The valve stem 150 has a first end and a second end. The first end of the valve stem 150 is conical and passes through the valve chamber 121 to engage with the valve seat 160 to open and close the valve chamber 121. The second end is located inside the adjusting chamber 122 and is connected to the connecting seat 180. There is a gap between the connecting seat 180 and the end of the threaded post 170. The rotor 140 is threaded onto the threaded post 170 and fixedly connected to the connecting seat 180. The rotor 140 is located inside the adjusting cavity 122. Both ends of the rotor 140 have gaps between them and the wall of the adjusting cavity 122 to provide space for the rotor 140 to move axially along the housing 120. The coil 130 is wound around the outside of the housing 120 and corresponds to the rotor 140 to drive the rotor 140 to rotate. An anti-jamming assist is provided on the rotor 140. The anti-jamming assist is used to assist the rotor 140 in moving when the vibrator 200 vibrates.

[0058] A mounting shell is fixedly fitted onto the outer wall of the housing 120, and the coil 130 is fixed inside the mounting shell. The coil 130 is connected to an external DC power supply. By energizing the coil 130 with an external power supply, the rotor 140 inside the housing 120 is driven to rotate. The direction of rotation of the rotor 140 can be changed by controlling the direction of the current flowing through the coil 130, thereby changing the direction of movement of the valve stem 150 and realizing the control of the electronic expansion valve.

[0059] In the above embodiment, when the coil 130 is energized, it drives the rotor 140 to rotate. Simultaneously, the rotor 140 moves axially along the housing 120 through its threaded engagement with the threaded post 170. This causes the rotor 140 to drive the valve stem 150 to move axially along the housing 120 via the connecting seat 180, thereby changing the engagement state between the first end of the valve stem 150 and the valve seat 160, thus opening and closing the electronic expansion valve. When movement between the rotor 140 and the threaded post 170, or between the valve stem 150 and the housing 120, is restricted, the vibrator 200 causes the housing 120 to vibrate. Simultaneously, the vibration drives the anti-jamming assist component to assist the movement of the rotor 140.

[0060] Reference Figure 4 The anti-jamming assist component includes multiple auxiliary blocks 190. Multiple placement cavities 141 are provided inside the rotor 140. The placement cavities 141 extend along the axial direction of the housing 120. The length of the placement cavity 141 is greater than the length of the auxiliary block 190. The auxiliary block 190 is slidably disposed in the placement cavity 141.

[0061] Specifically, there are two auxiliary blocks 190 and two placement cavities 141, which are symmetrically arranged within the rotor 140 to maintain the balance of the rotor 140 during normal use. The auxiliary blocks 190 are placed in the placement cavities 141 one-to-one. The width of the placement cavity 141 is slightly larger than the width of the auxiliary blocks 190 to facilitate the vertical movement of the auxiliary blocks 190 within the placement cavity 141.

[0062] In the above embodiment, when the vibrator 200 drives the housing 120 to vibrate, it will drive the rotor 140 and its valve stem 150 to vibrate, which will help to open the rotor 140 or the valve stem 150 if they are stuck. Furthermore, during the vibration of the rotor 140, the auxiliary block 190 inside the rotor 140 moves up and down, thereby providing power for the vibration of the rotor 140, so as to facilitate the movement of the stuck rotor 140.

[0063] In some embodiments, refer to Figure 2 The anti-clogging electronic expansion valve also includes a mounting base 300. A connecting plate 110 is fixed on the electronic expansion valve body 100. A mounting groove 310 is provided on the mounting base 300. The connecting plate 110 is inserted into the mounting groove 310. Elastic elements 330 are provided on both sides of the connecting plate 110. The elastic elements 330 are connected to the groove wall of the mounting groove 310.

[0064] For example, the connecting plate 110 is an annular plate, and the connecting plate 110 is fixedly sleeved on the electronic expansion valve body 100. The connecting plate 110 can be integrally formed with the outer shell of the electronic expansion valve body 100, or it can be welded and fixed to the outer shell of the electronic expansion valve body 100. No further restrictions are imposed here.

[0065] The mounting base 300 is an annular seat adapted to the connecting plate 110. A mounting groove 310 is formed on the inner wall of the mounting base 300, and the width of the mounting groove 310 is greater than the thickness of the connecting plate 110, allowing the mounting plate to be snapped into the mounting groove 310. An elastic element 330 is fixed to both sides of the connecting plate 110, with one end fixed to the connecting plate 110 and the other end fixed to the inner wall of the mounting groove 310. The mounting base 300 is installed inside the air conditioner. The electronic expansion valve body 100 is connected to the mounting base 300 only through the elastic element 330, thus providing a certain buffer distance for the electronic expansion valve body 100. The elastic element 330 also provides cushioning, reducing the possibility of damage to the electronic expansion valve body 100 during operation by the vibrator 200, and also reducing the possibility of the electronic expansion valve body 100 detaching from the air conditioner.

[0066] Specifically, the elastic element 330 is a spring. One end of the spring is fixed to the connecting plate 110, and the other end is fixed to the inner wall of the mounting groove 310. The spring provides a certain buffer against the vibration of the electronic expansion valve body 100, thereby reducing the damage to the electronic expansion valve body 100 caused by vibration. Furthermore, the springs on both sides of the connecting plate 110 are grouped together, and at least two groups of springs are provided on the connecting plate 110. That is, any number of springs can be provided, such as 2, 3, 4, or 6 groups. The more springs provided, the more stable the connection of the electronic expansion valve.

[0067] In some embodiments, the inlet pipe and outlet pipe of the electronic expansion valve body 100 are both flexible hoses, thereby avoiding the possibility of the pipes becoming loose during the vibration of the vibrator 200, and also facilitating the movement and buffering of the electronic expansion valve body 100.

[0068] In some embodiments, a limiting ring 111 is fixed on the outer ring of the connecting plate 110, and two limiting blocks 320 are fixed on the mounting base 300. The two limiting blocks 320 are respectively located on both sides of the mounting groove 310. The two limiting blocks 320 and the mounting groove 310 form a T-shaped groove. The limiting ring 111 is located inside the mounting groove 310, and the width of the limiting ring 111 is smaller than the width of the mounting groove 310 and larger than the distance between the two limiting blocks 320.

[0069] In the above embodiment, the limiting block 320 restricts the possibility of the limiting ring 111 sliding out of the mounting groove 310, thereby preventing the connecting plate 110 from separating from the mounting base 300, and thus preventing the electronic expansion valve body 100 from falling off while the spring provides cushioning.

[0070] Reference Figure 1 and Figure 2 An electronic expansion valve body 100 is fixed with a mounting block 400, and a vibrator 200 is disposed on the mounting block 400. The mounting block 400 is detachably connected to the electronic expansion valve body 100. The vibrator 200 is embedded within the mounting block 400. In this application, depending on the type of vibration motor, the vibration motor is embedded and fixed within the mounting block 400.

[0071] In one embodiment, the mounting block 400 is detachably connected to the end of the electronic expansion valve body 100 by means of screws.

[0072] In one embodiment, the mounting block 400 is detachably connected to the end of the electronic expansion valve body 100 by means of a snap-fit ​​connection.

[0073] Secondly, this application provides a control method for an anti-clogging electronic expansion valve, referring to... Figure 5 The control method includes the following steps:

[0074] S101, Set a preset value for the outlet flow rate in the controller and detect the outlet flow rate of the electronic expansion valve body 100.

[0075] S102, when the outlet flow rate is less than or equal to the preset value, control the vibrator 200 to vibrate, so as to drive the electronic expansion valve body 100 to vibrate, thereby increasing the outlet flow rate;

[0076] S103, when the outlet flow rate is greater than the preset value, the detection element continues to detect the outlet flow rate, and the vibrator 200 does not operate.

[0077] By continuously monitoring the outlet flow of the electronic expansion valve body 100, the degree of opening of the electronic expansion valve body 100 can be indirectly determined. When the outlet flow of the electronic expansion valve body 100 is less than or equal to a preset value, it can be concluded that the valve core opening is restricted, there is a blockage between the valve core and the electronic expansion valve body 100, or the valve core is stuck. At this time, the controller controls the vibrator 200 to vibrate, and the vibrator 200 drives the electronic expansion valve body 100 to vibrate, thereby driving the valve core to vibrate, achieving the purpose of moving the valve core, and indirectly achieving the effect of clearing the blockage, so that the electronic expansion valve body 100 can work normally to ensure the normal operation of the air conditioner.

[0078] Furthermore, in the above control method, when the outlet flow rate is greater than a preset value, the vibrator 200 is controlled to stop vibrating. The controller will only control the vibrator 200 to vibrate when the outlet flow rate is less than or equal to the preset value, thus avoiding continuous vibration of the vibrator 200. This reduces the impact of the vibrator 200 on the normal operation of the electronic expansion valve, preventing damage or detachment of the electronic expansion valve due to excessive vibration, and also reducing the noise caused by vibration.

[0079] Thirdly, this application provides an air conditioner, including an air conditioner body and the aforementioned anti-clogging electronic expansion valve disposed on the air conditioner body. A mounting base 300 is fixed to the air conditioner body, thereby achieving the installation and fixation of the electronic expansion valve body 100.

[0080] The anti-clogging electronic expansion valve in this embodiment has the same structure as the anti-clogging electronic expansion valve provided in any of the above embodiments, and can bring the same or similar technical effects. It will not be described in detail here, but can be referred to the description of the above embodiments.

[0081] This application provides an air conditioner in which a vibrator 200 is installed on an electronic expansion valve body 100, and the outlet flow of the electronic expansion valve is detected by a detection element. When the outlet flow of the electronic expansion valve body 100 is less than or equal to a preset value, the controller controls the vibrator 200 to vibrate, thereby driving the electronic expansion valve body 100 to vibrate, overcoming the resistance of the valve core movement of the electronic expansion valve body 100, opening the valve, and increasing the outlet flow. This reduces the possibility of the electronic expansion valve body 100 getting stuck or blocked, thereby reducing the malfunction of the air conditioner.

[0082] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An anti-clogging electronic expansion valve characterized by, Includes the electronic expansion valve body, vibrator, detection components, and controller; The vibrator is connected to the electronic expansion valve body to drive the electronic expansion valve body to vibrate, and the vibrator is electrically connected to the controller; the detection element is used to detect the outlet flow of the electronic expansion valve body, and both the detection element and the vibrator are electrically connected to the controller; When the outlet flow rate of the electronic expansion valve body is less than or equal to a preset value, the controller controls the vibrator to vibrate, thereby driving the electronic expansion valve body to vibrate and increasing the outlet flow rate. The electronic expansion valve body includes a housing, a coil, a rotor, a valve stem, a valve seat, a threaded post, a connecting seat, and an anti-jamming assist component. The housing has a valve cavity, the valve seat is located inside the valve cavity, the threaded post is fixed inside the housing, and the valve stem passes through the threaded post. The valve stem has a first end and a second end. The first end passes through the valve cavity and engages with the valve seat to open and close the valve cavity. The second end is connected to the connecting seat. The rotor is threaded onto the threaded post and connected to the connecting seat. Both ends of the rotor have gaps between themselves and the inner wall of the housing to provide space for the rotor to move axially along the housing. The coil is disposed on the housing to drive the rotor to rotate. The anti-jamming assist component is disposed on the rotor and is used to assist the rotor in its movement when the vibrator vibrates. The anti-jamming assist component includes multiple auxiliary blocks, and multiple placement cavities are provided inside the rotor. The placement cavities extend along the axial direction of the housing, and the length of the placement cavity is greater than the length of the auxiliary block. The auxiliary block is slidably disposed in the placement cavity.

2. The anti-blocking electronic expansion valve according to claim 1, characterized in that, When the detector detects that the outlet flow rate is greater than the preset value, the controller controls the vibrator to stop vibrating.

3. The anti-blocking electronic expansion valve according to claim 1, wherein The vibrator is a vibration motor.

4. The anti-clogging electronic expansion valve according to claim 1, characterized in that, It also includes a mounting base, a connecting plate is provided on the electronic expansion valve body, a mounting groove is provided on the mounting base, the connecting plate is inserted into the mounting groove, and elastic elements are provided on both sides of the connecting plate, the elastic elements being connected to the groove wall of the mounting groove.

5. The anti-clogging electronic expansion valve according to any one of claims 1-4, characterized in that, The electronic expansion valve body is provided with a mounting block, the vibrator is mounted on the mounting block, and the mounting block is detachably connected to the electronic expansion valve body.

6. A control method for an anti-clogging electronic expansion valve as described in any one of claims 1-5, characterized in that, Includes the following steps: Detect the outlet flow rate of the electronic expansion valve body; When the outlet flow rate is less than or equal to a preset value, the vibrator is controlled to vibrate, thereby causing the electronic expansion valve body to vibrate and increasing the outlet flow rate.

7. The control method according to claim 6, characterized in that, When the outlet flow rate is greater than the preset value, the vibrator is controlled to stop vibrating.

8. An air conditioner, characterized in that, Includes an air conditioner body and an anti-clogging electronic expansion valve as described in any one of claims 1-5, which is disposed on the air conditioner body.

Citation Information

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