Four-way valve, air conditioner

Abstract

The present application provides a four-way valve and an air conditioner, including a housing and a sliding part. The sliding part is arranged inside the housing. The sliding part and the housing enclose an inner cavity. When the four-way valve works, a refrigerant flows through the inner cavity. The sliding part can extend along a first direction to increase the volume of the inner cavity. The present application provides a four-way valve and an air conditioner, which can improve the sound attenuation amount of the four-way valve and reduce the emitted noise.

Description

Technical Field

[0001] This application belongs to the technical field of air conditioning, and particularly relates to a four-way valve and an air conditioner. Background Art

[0002] The four-way valve is an important component of the air conditioning system, and is used to switch the flow direction of the refrigerant between refrigeration and heating. The four-way valve has a cavity structure, and a valve core and a sliding part are arranged in the cavity. The cavity in the circumferential direction of the sliding part has a noise reduction effect, but there is no refrigerant flow in the cavities at both ends of the sliding part, so there is no noise reduction effect. In the prior art, due to the fixed structure of the sliding part, the volume of the cavity in the circumferential direction of the sliding part is fixed, resulting in a small noise reduction amount of the four-way valve and a large generated noise. Summary of the Invention

[0003] Therefore, the technical problem to be solved by this application is to provide a four-way valve and an air conditioner, which can improve the noise reduction amount of the four-way valve and reduce the generated noise.

[0004] To solve the above problems, this application provides a four-way valve, including a housing and a sliding part. The sliding part is arranged in the housing, and the sliding part and the housing enclose an inner cavity. When the four-way valve works, the refrigerant flows through the inner cavity, and the sliding part can extend along a first direction to increase the volume of the inner cavity.

[0005] Optionally, the sliding part includes a connecting piece and a first baffle. The first baffle is connected to the connecting piece. The first baffle is located in the first direction of the connecting piece. The housing includes a first end face. The first baffle is located between the first end face and the connecting piece. The connecting piece extends along the first direction to reduce the distance between the first baffle and the first end face.

[0006] Optionally, the housing further includes a second end face. The first end face and the second end face are oppositely arranged. The sliding part can extend along a second direction to increase the volume of the inner cavity.

[0007] Optionally, the sliding part further includes a second baffle. The second baffle is connected to the connecting piece. The second baffle is located in the second direction of the connecting piece. The second baffle is located between the second end face and the connecting piece. The connecting piece extends along the second direction to reduce the distance between the second baffle and the second end face.

[0008] Optionally, the first baffle is perpendicularly arranged to the connecting piece, and / or the second baffle is perpendicularly arranged to the connecting piece.

[0009] Optionally, the first baffle is sealingly connected to the circumferential inner wall of the housing, and / or the second baffle is sealingly connected to the circumferential inner wall of the housing.

[0010] Optionally, the connecting member includes a telescopic section made of a piezoelectric material.

[0011] Optionally, the connecting member further includes a first connecting rod disposed between the telescopic section and the first baffle, and the telescopic section is connected to the first baffle through the first connecting rod;

[0012] and / or;

[0013] The connecting member further includes a second connecting rod disposed between the telescopic section and the second baffle, and the telescopic section is connected to the second baffle through the second connecting rod.

[0014] Optionally, the four-way valve further includes a valve core disposed in the housing, and the valve core is sleeved on the connecting member.

[0015] On the other hand, the present application provides an air conditioner including the four-way valve as described above.

[0016] Advantageous Effects

[0017] The four-way valve and the air conditioner provided in the embodiments of the present invention can increase the sound attenuation amount of the four-way valve and reduce the generated noise. Description of the Drawings

[0018] Figure 1 is a cross-sectional view of the four-way valve according to the embodiment of the present application;

[0019] Figure 2 is a front view of the sliding part according to the embodiment of the present application;

[0020] Figure 3 is a top view of the sliding part according to the embodiment of the present application;

[0021] Figure 4 is a simulation diagram of the sound attenuation amount of the embodiment of the present application.

[0022] The reference numerals are shown as:

[0023] 1. housing; 11. first end face; 12. second end face; 13. inner cavity; 21. first baffle; 22. first connecting rod; 23. telescopic section; 24. second connecting rod; 25. second baffle; 3. valve core. Detailed Embodiments

[0024] Refer to in combination Figures 1 to 3As shown, according to an embodiment of the present application, a four-way valve includes a housing 1 and a sliding part. The sliding part is arranged inside the housing 1, and the sliding part and the housing 1 enclose an inner cavity 13. When the four-way valve works, the refrigerant flows through the inner cavity 13, and the sliding part can extend along a first direction to increase the volume of the inner cavity 13. By setting the sliding part to be able to extend along the first direction, the volume of the inner cavity 13 can be increased. Since the inner cavity 13 has a sound-absorbing effect due to the flowing refrigerant, the sound-absorbing amount of the four-way valve is improved, and the emitted noise is reduced.

[0025] In some embodiments, the first direction is one of the directions in the length direction of the sliding part. Specifically, as Figure 1 shown, the first direction is the direction to the left.

[0026] In some embodiments, among the four connecting pipes of the four-way valve, two of them are connected and communicated through the inner cavity 13.

[0027] The sliding part includes a connecting piece and a first baffle 21. The first baffle 21 is connected to the connecting piece. The first baffle 21 is located in the first direction of the connecting piece. The housing 1 includes a first end face 11. The first baffle 21 is located between the first end face 11 and the connecting piece. The connecting piece extends along the first direction to reduce the distance between the first baffle 21 and the first end face 11. By setting the first baffle 21, the left cavity wall of the inner cavity 13 is formed. Pushing the first baffle to move along the first direction, the volume of the inner cavity 13 is increased.

[0028] In some embodiments, the section of the connecting piece provided with the first baffle 21 can retract along the reverse direction of the first direction to increase the distance between the first baffle 21 and the first end face 11.

[0029] The housing 1 further includes a second end face 12. The first end face 11 and the second end face 12 are oppositely arranged. The sliding part can extend along a second direction to increase the volume of the inner cavity 13. By setting the sliding part to be able to extend along the second direction, the volume of the inner cavity 13 can be increased. Since the inner cavity 13 has a sound-absorbing effect due to the flowing refrigerant, the sound-absorbing amount of the four-way valve is improved, and the emitted noise is reduced.

[0030] In some embodiments, the first end face 11 and the second end face 12 are the end faces at both ends in the length direction of the housing 1. As Figure 1 shown, the first end face 11 is the left end face of the housing 1, and the second end face 12 is the right end face of the housing 1.

[0031] In some embodiments, the second direction is opposite to the first direction, that is, the second direction is the reverse of the first direction.

[0032] The sliding part further includes a second baffle 25. The second baffle 25 is connected to the connecting member. The second baffle 25 is located in the second direction of the connecting member. The second baffle 25 is located between the second end face 12 and the connecting member. The connecting member extends along the second direction to reduce the distance between the second baffle 25 and the second end face 12. By providing the second baffle 25, the right side wall of the inner cavity 13 is formed. Pushing the second baffle to move along the second direction further realizes an increase in the volume of the inner cavity 13.

[0033] In some embodiments, a section of the connecting member provided with the second baffle 25 can retract along the reverse direction of the second direction, that is, retract along the first direction, so as to increase the distance between the first baffle 21 and the first end face 11.

[0034] In some embodiments, ventilation holes are provided on the first end face 11 for ventilation or exhaust between the first baffle 21 and the first end face 11 when the first baffle 21 moves. Ventilation holes are provided on the second end face 12 for ventilation or exhaust between the second baffle 25 and the second end face 12 when the second baffle 25 moves.

[0035] The first baffle 21 is perpendicularly arranged with the connecting member, and the second baffle 25 is perpendicularly arranged with the connecting member, so that the first baffle 21 and the second baffle 25 are uniformly stressed, ensuring the overall stability of the sliding part.

[0036] In some embodiments, the first baffle 21, the connecting member and the second baffle 25 form an I-shaped structure.

[0037] The first baffle 21 is sealingly connected to the circumferential inner wall of the housing 1, and the second baffle 25 is sealingly connected to the circumferential inner wall of the housing 1, ensuring that the refrigerant in the inner cavity 13 will not leak out.

[0038] In some embodiments, the first baffle 21 is a circular plate structure, and the outer edge of the first baffle 21 is sealingly connected to the circumferential inner wall of the housing 1. The second baffle 25 is a circular plate structure, and the outer edge of the second baffle 25 is sealingly connected to the circumferential inner wall of the housing 1.

[0039] The connecting member includes a telescopic section 23. The telescopic section 23 is made of piezoelectric material. When an electric current is applied to both ends of the piezoelectric material, the crystal will change, realizing the elongation or shortening of the piezoelectric material. When the external electric field is relatively strong, the piezoelectric transistor will have an electrostrictive effect, and the deformation length is proportional to the electric field. Utilizing the inverse piezoelectric effect of the piezoelectric material, that is, when an electric current is applied to the piezoelectric material, an electrostrictive effect will occur and the material will deform. By setting the direction of the applied current, the length of the telescopic section 23 can be made to become longer, and then the overall length of the connecting member becomes longer, thereby realizing an increase in the volume of the inner cavity 13, improving the effective sound absorption performance of the four-way valve, enhancing the sound absorption characteristics of the entire pipeline system, solving the problem of transmitted sound, and also realizing the miniaturized design of the muffler. At the same time, the reliability of the pipeline is greatly improved.

[0040] In some embodiments, the telescopic section 23 is electrically connected to a power source, and the controller can control the power source to supply power to and cut off power from the telescopic section 23.

[0041] The connecting member further includes a first connecting rod 22 disposed between the telescopic section 23 and the first baffle 21. The telescopic section 23 and the first baffle 21 are connected by the first connecting rod 22. The connecting member further includes a second connecting rod 24 disposed between the telescopic section 23 and the second baffle 25. The telescopic section 23 and the second baffle 25 are connected by the second connecting rod 24. By providing the first connecting rod 22 and the second connecting rod 24, the stable connection between the telescopic section 23 and the first baffle 21 and the second baffle 25 is ensured.

[0042] In some embodiments, the first connecting rod 22 and the second connecting rod 24 are coaxially disposed.

[0043] The four-way valve further includes a valve core 3 disposed in the housing 1. The valve core 3 is sleeved on the connecting member, which can ensure the stable sliding of the valve core 3 in the inner cavity 13 and ensure the selectively connecting of the pipelines.

[0044] In the heating condition, when the compressor operates and the four-way valve is in the energized state, the telescopic section 23 is energized. Using the inverse piezoelectric effect of the piezoelectric material, the telescopic section 23 will generate electrostrictive effect after being energized, and the telescopic section 23 deforms. When the telescopic section 23 becomes longer, the whole sliding part becomes longer, realizing the increase of the volume of the inner cavity 13 and improving the effective sound absorption performance of the four-way valve. When the electric field reaches a certain value, the length change of the sliding part reaches the limit. At this time, the first baffle 21 contacts the first end face 11, and the second baffle 25 contacts the second end face 12, realizing the maximization of the volume of the inner cavity 13.

[0045] As Figure 4 shown, taking refrigeration as an example, comparing the sound absorption performance simulation results of the four-way valve in this embodiment with those in the prior art, the sound absorption amount when the sliding part is in the limit position is greater than that of the four-way valve in the prior art, and in multiple frequency bands, the sound absorption performance of the four-way valve in this embodiment shows a maximum value, and the sound absorption performance has an absolute advantage in the low frequency. When the energization intensity changes continuously, the length of the sliding part can change continuously. Therefore, the energization intensity of the piezoelectric material can be set according to the actual sound absorption amount and sound absorption frequency, so that the four-way valve has appropriate sound absorption performance.

[0046] On the other hand, an air conditioner is provided in this embodiment, including the four-way valve as described above.

[0047] A four-way valve and an air conditioner provided in the embodiments of the present invention can improve the sound absorption amount of the four-way valve and reduce the generated noise.

[0048] Those skilled in the art can easily understand that, on the premise of no conflict, the above advantageous ways can be freely combined and superimposed.

[0049] The above are only the preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application. The above is only the preferred implementation manner of the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present application, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as within the protection scope of the present application.

Claims

1. A four-way valve, characterized in that, It includes a housing (1) and a sliding part. The sliding part is arranged inside the housing (1). The sliding part and the housing (1) enclose an inner cavity (13). When the four-way valve works, the refrigerant flows through the inner cavity (13). The sliding part can elongate in a first direction to increase the volume of the inner cavity (13). The sliding part includes a connecting piece and a first baffle (21). The first baffle (21) is connected to the connecting piece. The first baffle (21) is located in the first direction of the connecting piece. The housing (1) includes a first end face (11). The first baffle (21) is located between the first end face (11) and the connecting piece. The connecting piece elongates in the first direction to reduce the distance between the first baffle (21) and the first end face (11). The connecting piece includes a telescopic section (23). The telescopic section (23) is made of a piezoelectric material.

2. The four-way valve according to claim 1, characterized in that, The housing (1) further includes a second end face (12). The first end face (11) and the second end face (12) are oppositely arranged. The sliding part can elongate in a second direction to increase the volume of the inner cavity (13).

3. The four-way valve according to claim 2, wherein, The sliding part further includes a second baffle (25). The second baffle (25) is connected to the connecting piece. The second baffle (25) is located in the second direction of the connecting piece. The second baffle (25) is located between the second end face (12) and the connecting piece. The connecting piece elongates in the second direction to reduce the distance between the second baffle (25) and the second end face (12).

4. The four-way valve according to claim 3, characterized in that The first baffle (21) is perpendicularly arranged with the connecting piece, and / or the second baffle (25) is perpendicularly arranged with the connecting piece.

5. The four-way valve according to claim 3, characterized in that, The first baffle (21) is hermetically connected to the circumferential inner wall of the housing (1), and / or the second baffle (25) is hermetically connected to the circumferential inner wall of the housing (1).

6. The four-way valve according to claim 3, characterized in that, The connecting piece further includes a first connecting rod (22). The first connecting rod (22) is arranged between the telescopic section (23) and the first baffle (21). The telescopic section (23) and the first baffle (21) are connected through the first connecting rod (22). and / or; The connecting piece further includes a second connecting rod (24). The second connecting rod (24) is arranged between the telescopic section (23) and the second baffle (25). The telescopic section (23) and the second baffle (25) are connected through the second connecting rod (24).

7. The four-way valve according to claim 1, characterized in that, The four-way valve further includes a valve core (3). The valve core (3) is arranged inside the housing (1). The valve core (3) is sleeved on the connecting piece.

8. An air conditioner, characterized in that, It includes the four-way valve according to any one of claims 1-7.

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