阅读说明：本技术 一种冷媒阻尼阀、控制方法及空调器 (Refrigerant damping valve, control method and air conditioner ) 是由 李朝政 杜文超 彭子影 于 2020-05-11 设计创作，主要内容包括：本发明提供了一种冷媒阻尼阀,冷媒阻尼阀用于调节空调制热化霜时进入空调的室内换热器中的冷媒量,冷媒阻尼阀包括：第一接管(1)、外阀体(2)、内阀体(3)、阀芯(4)、第二接管(5)及旁通管(6)；第一接管(1)的一端与外阀体(2)的一端连通,所述第二接管(5)的一端与外阀体(2)的另一端连通,旁通管(6)的两端与外阀体(2)的两端连通；内阀体(3)设于外阀体(2)内部,阀芯(4)设于内阀体(3)内部,内阀体(3)与第一接管(1)及第二接管(5)相对的两端开设有通孔(31),内阀体(3)侧壁也开设有通孔(31),该冷媒阻尼阀避免高压冷媒室内换热器内壁的冲击,避免空调器大幅度振动,消除异响。(The invention provides a refrigerant damping valve, which is used for adjusting the amount of refrigerant entering an indoor heat exchanger of an air conditioner during heating and defrosting of the air conditioner, and comprises the following components: the valve comprises a first connecting pipe (1), an outer valve body (2), an inner valve body (3), a valve core (4), a second connecting pipe (5) and a bypass pipe (6); one end of the first connecting pipe (1) is communicated with one end of the outer valve body (2), one end of the second connecting pipe (5) is communicated with the other end of the outer valve body (2), and two ends of the bypass pipe (6) are communicated with two ends of the outer valve body (2); inside outer valve body (2) were located in interior valve body (3), inside interior valve body (3) were located in case (4), through-hole (31) have been seted up with first takeover (1) and the relative both ends of second takeover (5) in interior valve body (3), through-hole (31) have also been seted up to interior valve body (3) lateral wall, and this refrigerant damping valve avoids the impact of high-pressure refrigerant indoor heat exchanger inner wall, avoids the air conditioner to vibrate by a wide margin, eliminates abnormal sound.)

1. The refrigerant damping valve is characterized in that the refrigerant damping valve is used for adjusting the amount of refrigerant entering an indoor heat exchanger of an air conditioner during heating and defrosting of the air conditioner, and comprises:

the valve comprises a first connecting pipe (1), an outer valve body (2), an inner valve body (3), a valve core (4), a second connecting pipe (5) and a bypass pipe (6);

one end of the first connecting pipe (1) is communicated with one end of the outer valve body (2), one end of the second connecting pipe (5) is communicated with the other end of the outer valve body (2), and two ends of the bypass pipe (6) are communicated with two ends of the outer valve body (2);

the inner valve body (3) is arranged inside the outer valve body (2), the valve core (4) is arranged inside the inner valve body (3), through holes (31) are formed in the two opposite ends of the inner valve body (3) and the first connecting pipe (1) and the second connecting pipe (5), and the through holes (31) are formed in the side wall of the inner valve body (3).

2. The refrigerant damping valve according to claim 1, wherein the refrigerant damping valve is disposed between a throttling element and a stop valve in an outdoor unit of the air conditioner, and the other end of the first connection pipe (1) is communicated with the stop valve and the other end of the second connection pipe (5) is communicated with the throttling element.

3. The refrigerant damper valve according to claim 2, characterized in that the predetermined position between the side wall of the outer valve body (2) and the side wall of the inner valve body (3) is sealed.

4. The refrigerant damping valve according to claim 2, wherein a gap of a predetermined size is provided between the valve core (4) and the inner valve body (3), and the gap is used for allowing a predetermined amount of refrigerant to enter the inner valve body (3) through the through hole (31) opposite to the second connection pipe (5) when the valve core (4) blocks the through hole (31) opposite to the second connection pipe (5) in the inner valve body (3).

5. A refrigerant damping valve according to claim 3, characterized in that a predetermined gap is provided between the side wall of the outer valve body (2) and the side wall of the inner valve body (3) except for the sealing position, and the predetermined gap is used for allowing a predetermined amount of refrigerant to enter the inner valve body (3) through the through hole (31) in the side wall of the inner valve body (3) when the valve core (4) blocks the through hole (31) in the inner valve body (3) opposite to the second connection pipe (5).

6. The refrigerant damper valve as claimed in claim 3, wherein the middle of the side wall of the outer valve body (2) is roll sealed with the middle of the side wall of the inner valve body (3).

7. The refrigerant damper valve according to any one of claims 1 to 6, wherein two of the through holes (31) are symmetrically formed in the side wall of the inner valve body (3).

8. The refrigerant damper valve according to claim 3, wherein the through hole (31) is provided at a predetermined position on a side close to the second connection pipe (5).

9. A control method for a refrigerant damper valve according to any one of claims 1 to 8, wherein the control method is used for controlling the amount of refrigerant entering an indoor heat exchanger of an air conditioner during heating and defrosting of the air conditioner, and the control method comprises the following steps:

judging whether the air conditioner enters a defrosting mode or not;

if yes, switching the defrosting four-way valve to enable the valve core (4) to block a through hole (31) of the refrigerant damping valve close to the stop valve under the pressure difference between the refrigerant damping valve and the two ends of the stop valve, wherein the throttling element is connected with the outdoor unit of the air conditioner;

after a preset time period, judging whether the air conditioner is defrosted completely;

if yes, the four-way valve is switched again, so that the valve core (4) blocks the through hole (31) of the refrigerant damping valve close to the throttling element under the action of gravity.

10. An air conditioner, characterized by comprising the refrigerant damper valve according to any one of claims 1 to 8, wherein the air conditioner executes the control method according to claim 9 based on the refrigerant damper valve.

Technical Field

The invention relates to the technical field of air conditioners, in particular to a refrigerant damping valve, a control method and an air conditioner.

Background

When a heat pump type room air conditioner (hereinafter referred to as an air conditioner) heats and defrosts, because of the switching of the four-way valve, a refrigerant in the air conditioner system can instantly and reversely flow, and the formed high-pressure refrigerant impacts the inner wall of an indoor heat exchanger of the air conditioner, so that the air conditioner generates large vibration and is accompanied with obvious abnormal sound, and the use comfort of a user is seriously influenced. And the time sequence is switched by simply controlling the four-way valve, so that the four-way valve is switched after the refrigerant pressure of the air conditioner system tends to be balanced, the shutdown time of the air conditioner can be prolonged, the indoor temperature is greatly reduced, large fluctuation exists, and the user experience is influenced.

Disclosure of Invention

The invention mainly aims to provide a refrigerant damping valve, a control method and an air conditioner, which are used for at least partially solving the technical problems.

In order to solve the above problems, an aspect of the present invention provides a refrigerant damping valve for adjusting an amount of refrigerant entering an indoor heat exchanger of an air conditioner during heating and defrosting of the air conditioner, the refrigerant damping valve including: the valve comprises a first connecting pipe, an outer valve body, an inner valve body, a valve core, a second connecting pipe and a bypass pipe; one end of the first connecting pipe is communicated with one end of the outer valve body, one end of the second connecting pipe is communicated with the other end of the outer valve body, and two ends of the bypass pipe are communicated with two ends of the outer valve body; the inner valve body is arranged inside the outer valve body, the valve core is arranged inside the inner valve body, through holes are formed in the two ends, opposite to the first connecting pipe and the second connecting pipe, of the inner valve body, and the through holes are also formed in the side wall of the inner valve body.

From this, when the air conditioner got into and heats the defrosting mode, this damping valve structure can prevent the cross valve when switching, and the inside refrigerant of air conditioning system's reverse flow in the twinkling of an eye is under not influencing air conditioner refrigerant normal pressure balance for the refrigerant slowly gets into the indoor heat exchanger of air conditioner, thereby avoids the impact of high pressure refrigerant indoor heat exchanger inner wall, avoids the air conditioner great vibration to appear, eliminates abnormal sound, improves user's travelling comfort.

Optionally, the refrigerant damping valve is disposed between a throttling element and a stop valve in an outdoor unit of the air conditioner, the other end of the first connection pipe is communicated with the stop valve, and the other end of the second connection pipe is communicated with the throttling element.

Therefore, the position of the refrigerant damping valve in the air conditioner is reasonably designed, so that the refrigerant damping valve can play a role to a greater extent, and the refrigerant can be better delayed from entering the indoor heat exchanger.

Optionally, the predetermined position between the outer valve body sidewall and the inner valve body sidewall is sealed.

Optionally, the middle of the outer valve body sidewall is roll sealed to the middle of the inner valve body sidewall.

Therefore, the inner valve body can be stably fixed on the side wall of the outer valve body through sealing.

Optionally, a gap with a preset size is formed between the valve core and the inner valve body, and the gap is used for allowing a preset amount of refrigerant to enter the inner valve body through the through hole opposite to the second connecting pipe when the valve core blocks the through hole opposite to the second connecting pipe in the inner valve body.

Therefore, the gap with the preset size can ensure that partial refrigerant enters the indoor heat exchanger under the normal state of the air conditioner, and the normal pressure balance of the refrigerant of the air conditioner is ensured.

Optionally, a preset gap is formed between the side wall of the outer valve body and the side wall of the inner valve body except for a sealing position, and the preset gap is used for allowing a preset amount of refrigerant to enter the inner valve body through the through hole in the side wall of the inner valve body when the valve core blocks the through hole in the inner valve body opposite to the second connecting pipe.

Therefore, the preset gap can ensure that partial refrigerant enters the indoor heat exchanger under the normal state of the air conditioner, and further ensure the normal refrigerant pressure balance of the air conditioner.

Optionally, two through holes are symmetrically formed in the side wall of the inner valve body.

Optionally, the through hole is arranged at one side of the preset position close to the second connecting pipe.

Therefore, the positions and the number of the through holes in the side wall of the inner valve body are reasonably designed, so that the normal pressure balance of the refrigerant under the normal state of the air conditioner is ensured.

The invention also provides a control method based on the refrigerant damping valve, the control method is used for controlling the amount of refrigerant entering an indoor heat exchanger of an air conditioner during heating and defrosting of the air conditioner, and the control method comprises the following steps: judging whether the air conditioner enters a defrosting mode or not; if yes, switching a defrosting four-way valve to enable a valve core to block a through hole of a refrigerant damping valve close to a stop valve under the condition that the refrigerant damping valve is connected with a throttling element in the air conditioner outdoor unit and the pressure difference is obtained between two ends of the stop valve; after a preset time period, judging whether the air conditioner is defrosted completely; if so, switching the four-way valve to enable the valve core to block the through hole of the refrigerant damping valve close to the throttling element under the action of gravity.

The control method has the advantages of the refrigerant damping valve, and the description is omitted.

The invention also provides an air conditioner which comprises the refrigerant damping valve, and the air conditioner executes the control method based on the refrigerant damping valve. The air conditioner has the advantages of the refrigerant damping and control method, and the details are not repeated herein.

Drawings

Fig. 1 schematically shows a structure diagram of a refrigerant damper valve according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram showing the position of the valve spool when the four-way valve according to the first embodiment of the present invention is switched;

fig. 3 schematically illustrates a refrigerant flow diagram when the air conditioner provided by the first embodiment of the invention is not defrosted;

fig. 4 schematically shows a flowchart of a control method provided by the second embodiment of the present invention.

Detailed Description

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to solve the problem of indoor abnormal sound when the air conditioner heats and defrosts, the refrigerant damping valve is introduced into the air conditioner, and reasonable time sequence control is combined, so that the refrigerant is delayed to enter the indoor heat exchanger when the defrosting four-way valve is switched, and the refrigerant slowly entering the evaporator can not generate strong impact to generate vibration of the air conditioner and generate abnormal sound under the condition of not influencing the normal pressure balance of the refrigerant of the air conditioner, and finally, the use comfort of a user is improved. The following detailed description will proceed with reference being made to specific embodiments.