Actuating member and reversing valve

Patent metadata

Field	Value
Publication number	US-12110986-B2
Application number	US-202217992993-A
Country	US
Kind code	B2
Filing date	Nov 23, 2022
Priority date	May 29, 2020
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

An actuating member is provided. The actuating member acts on a valve core rod. A guide surface is arranged on the actuating member. A guide path is formed on the guide surface. The guide surface is configured to slidably abut against a top end of the valve core rod, so that the top end of the valve core rod selectively abuts against a position on the guide path at a different height, so as to adjust a position of the valve core rod in a valve port of a reversing valve, thereby changing a flow area at the valve port.

First claim

What is claimed is:

1. An actuating member, comprising:
a guide surface on the actuating member having a rotating shaft; and
a guide path formed on the guide surface,
wherein the guide surface is configured to slidably abut against a top end of a valve core rod, so that the top end of the valve core rod selectively abuts against a position on the guide path at a different height, to adjust a position of the valve core rod in a valve port of a reversing valve to change a flow area at the valve port,
wherein the guide surface comprises two first guide portions disposed at highest portions of the guide surface and two second guide portions disposed at lowest portions of the guide surface, wherein the first guide portions are symmetric with each other with respect to a center of the rotating shaft, the second guide portions are symmetric with each other with respect to the center of the rotating shaft, and the first guide portions and the second guide portions are alternately disposed on the guide surface.

2. The actuating member according to claim 1 , wherein the guide surface is an arcuate guide surface.

3. The actuating member according to claim 1 , wherein
each of the first guide portions is configured to abut against and be engaged with the top end of the valve core rod, and each of the second guide portions is configured to abut against and be engaged with the top end of the valve core rod, so that the valve core rod opens or blocks the valve port.

4. The actuating member according to claim 3 , wherein each of the first guide portions is configured in such a way that the valve port is in a completely opened state when one of the first guide portions abuts against and is engaged with the top end of the valve core rod; and the valve core rod blocks the valve port when one of the second guide portions abuts against and is engaged with the top end of the valve core rod.

5. The actuating member according to claim 3 , wherein a gradual transition is realized between one of the first guide portions and one of the second guide portions adjacent to each other, through a smooth surface.

6. The actuating member according to claim 5 , wherein the smooth surface is an arcuate surface or an inclined surface.

7. The actuating member according to claim 1 , wherein a cam transmission mechanism is jointly formed by the valve core rod and the actuating member; and the guide surface is an arcuate guide surface.

8. A reversing valve, comprising:
a valve body;
a valve core assembly; and
an actuating assembly,
wherein an inlet, at least two outlets, and an internal flow channel that connects the inlet with the outlets are formed on the valve body; a valve port engaged with the valve core assembly is formed on the internal flow channel; the valve port is in a one-to-one correspondence with the valve core assembly; the valve core assembly is movably arranged on the valve body; and the actuating assembly is configured to actuate the valve core assembly, so that the inlet is selectively in communication with at least one of the outlets, and flow distribution is realized by adjusting a cross sectional flow area at the valve port,
wherein the actuating assembly comprises an actuating member comprising:
a guide surface on the actuating member having a rotating shaft; and
a guide path formed on the guide surface,
wherein the guide surface is configured to slidably abut against a top end of a valve core rod of the valve core assembly, so that the top end of the valve core rod selectively abuts against a position on the guide path at a different height, to adjust a position of the valve core rod in the valve port to change a flow area at the valve port,
wherein the guide surface comprises two first guide portions disposed at highest portions of the guide surface and two second guide portions disposed at lowest portions of the guide surface, wherein the first guide portions are symmetric with each other with respect to a center of the rotating shaft, the second guide portions are symmetric with each other with respect to the center of the rotating shaft, and the first guide portions and the second guide portions are alternately disposed on the guide surface.

9. The reversing valve according to claim 8 , wherein the actuating assembly is configured to actuate the valve core assembly, so that the inlet is selectively in complete communication with one of the outlets or in partial communication with all of the outlets, so as to realize the flow distribution by adjusting the cross sectional flow area at the valve port.

10. The reversing valve according to claim 8 , wherein a fluid distributor is formed on the internal flow channel; a separation cylinder is arranged in the fluid distributor to separate the fluid distributor into a first accommodating cavity and a second accommodating cavity; the valve port is formed as an opening of the separation cylinder; the first accommodating cavity is in communication with the second accommodating cavity through the valve port; one of the first accommodating cavity and the second accommodating cavity is in communication with the inlet on the internal flow channel where such accommodating cavity is located; and the other of the first accommodating cavity and the second accommodating cavity is in communication with one of the outlets on the internal flow channel where such accommodating cavity is located.

11. The reversing valve according to claim 8 , wherein the actuating assembly further comprises an elastic member; the valve core rod movably extends through the valve port; and the elastic member is connected between the valve body and the valve core rod to provide an elastic force for causing the valve core rod to open the valve port.

12. The reversing valve according to claim 11 , wherein the actuating member is rotatably arranged on the valve body; the guide surface is an arcuate guide surface and a gradual transition is realized between one of the first guide portions and one of the second guide portions adjacent to each other through a smooth surface to jointly form a cam transmission mechanism, so that the valve core rod opens or blocks the valve port.

13. The reversing valve according to claim 12 , wherein when the one of the first guide portions abuts against the top end of the valve core rod, the valve core rod overcomes the elastic force and opens the valve port; and when the one of the second guide portions abuts against the top end of the valve core rod, the elastic member causes the valve core rod to block the valve port.

14. The reversing valve according to claim 8 , wherein the valve core assembly comprises the valve core rod movably extending through the valve body; a stepped hole is arranged on the valve body; and the top end of the valve core rod extends out through the stepped hole.

15. The reversing valve according to claim 8 , wherein the valve core assembly comprises the valve core rod movably extending through the valve body along an axial direction of the valve core assembly; a stepped hole is arranged on the valve body; the top end of the valve core rod extends out through the stepped hole; and a sealing member is fixedly arranged in the stepped hole to seal the valve core rod and the valve body.

16. A reversing valve, comprising:
a valve body having an inlet, a plurality of outlets, and an internal flow channel that connects the inlet with the plurality of outlets and includes a valve port;
a valve core rod movable within the valve port; and
an actuating member having a rotating shaft, an arcuate guide surface, and a guide path formed on the guide surface,
where

Assignees

• Byd Co Ltd

Inventors

• Liu Wence
• Sun Guoqing
• Ye Meijiao

Classifications

• F16K27/0263

  multiple way valves · CPC title

• F16K31/04 Primary

  using a motor · CPC title

• F16K11/161

  only slides · CPC title

• F16K11/14

  operated by one actuating member, e.g. a handle (with one plug turning in another F16K11/12) · CPC title

• F16K31/524

  with a cam · CPC title