CN221145313U

CN221145313U - Control valve group

Info

Publication number: CN221145313U
Application number: CN202322772653.9U
Authority: CN
Inventors: 王康乐; 李阳; 张星群; 王何阳; 高宜国; 李喜初
Original assignee: Shanghai Chinaust Automotive Plastics Corp ltd
Current assignee: Shanghai Chinaust Automotive Plastics Corp ltd
Priority date: 2023-10-16
Filing date: 2023-10-16
Publication date: 2024-06-14
Anticipated expiration: 2033-10-16

Abstract

The utility model discloses a control valve group. The control valve group is suitable for stably controlling the on-off states of the two channels. The control valve group comprises a shell and at least two control valves. The shell forms a first channel and a second channel, and the shell is provided with at least two conducting ports on the first channel. The control valves are provided to the housing, and each of the control valves is provided to control an open-closed state of one of the conduction ports. The utility model has at least two control valves, and can control the rest control valves under the condition that one control valve fails, so as to ensure that the first channel and the second channel are smoothly communicated.

Description

Control valve group

Technical Field

The utility model relates to the technical field of control valves, in particular to a control valve group.

Background

With the development of new energy automobiles, the combustion of the fuel cell caused by faults is more and more interesting, wherein the timely opening of the spraying system is the fastest means for coping with the combustion of the fuel cell, and the electromagnetic valve is a main component for controlling the opening and closing of the spraying system due to the advantage of rapid opening and closing.

In the existing spraying system, only one electromagnetic valve is adopted for control, when the electromagnetic valve fails, the spraying system cannot be started, cooling liquid cannot be sprayed to a fuel cell which is being fuelled, and the effect of controlling the combustion of the cell cannot be achieved.

In addition, because a large amount of cooling liquid is needed for extinguishing the battery in combustion, a pilot-operated electromagnetic valve is generally used in a spraying system, when the pilot-operated electromagnetic valve is electrified, the valve rod is lifted by virtue of electromagnetic force, the spring is compressed, the pilot valve opening is opened, at the moment, the upper cavity of the electromagnetic valve is relieved through a pilot hole, a high pressure difference is formed around the main valve core, and under the action of the pressure difference, the fluid pressure pushes the main valve core to move upwards to open the main valve opening; when the pilot electromagnetic valve is powered off, the valve rod is reset under the action of spring force, the pilot hole is closed, the main valve core moves downwards under the action of the gravity of the main valve core, and the main valve opening is closed.

When the existing pilot electromagnetic valve is powered off and closed, the main valve port is closed mainly by means of resilience force of a spring and gravity applied to the main valve core, the closing process of the main valve port is not reliable enough, and the closing process of the main valve core is slower and cannot adapt to occasions needing quick closing.

Disclosure of utility model

One advantage of the present utility model is that a control valve is provided in which two return members act on the sealing member simultaneously so that the sealing member can quickly conform to the port when the port is resealed.

An advantage of the present utility model is to provide a control valve set in which at least two control valves are connected to a first passage, and the on-off states of the first passage and a second passage can be stably controlled.

To achieve at least one of the above advantages, the present utility model provides a control valve set adapted to stably control on-off states of two channels, the control valve set comprising:

A shell body, the shell body forms a first channel and a second channel, the shell body is provided with at least two conducting ports on the first channel,

At least two control valves, the control valves are arranged on the shell, and each control valve is arranged to control the opening and closing states of one of the conducting ports.

According to an embodiment of the utility model, the control valve is implemented as a solenoid valve.

According to an embodiment of the present utility model, the control valve is implemented as a pilot-operated solenoid valve, and the control valve includes a valve body, an electromagnetic driving member, a sealing member, a first reset member and a second reset member, wherein the valve body forms a control chamber, the electromagnetic driving member is disposed in the control chamber, the electromagnetic driving member has a moving portion that can move along an axial direction of the valve body, the sealing member is movably disposed in the control chamber, the sealing member is provided with a pilot hole and a pressure relief hole, the pilot hole is communicated with the first channel and the control chamber, the pressure relief hole is communicated with the second channel and the control chamber, the moving portion is disposed to control opening and closing of the pilot hole, the first reset member is disposed in the control chamber and is disposed to reset the moving portion, and the second reset member is disposed in the control chamber and is disposed to reset the sealing member.

According to an embodiment of the utility model, the electromagnetic drive member is implemented as a movable magnetic spool and a coil electrically connected to the outside, the coil being provided in the housing and in the control chamber.

According to an embodiment of the utility model, the pilot hole is located in the middle of the seal.

According to an embodiment of the utility model, the sealing member comprises an elastic member and a rigid member, the elastic member being arranged to flexibly connect the rigid member and the housing such that the rigid member may protrude or sink into the housing.

According to an embodiment of the utility model, the elastic piece is in a circular ring shape, the elastic piece is provided with a larger outer diameter and a smaller inner diameter, the elastic part protrudes along the axial direction of the elastic part at the larger outer diameter to form a protruding ring, and the elastic piece is sleeved outside the shell through the protruding ring;

The rigid piece is provided with a clamping groove along the circumferential direction of the rigid piece, and the groove width of the clamping groove is matched with the thickness of the elastic piece, so that the elastic piece can be clamped in the clamping groove.

According to an embodiment of the present utility model, the rigid member includes a mounting portion and a guiding portion, the mounting portion is disposed on the guiding portion, an outer diameter of the mounting portion is smaller than an inner diameter of the guiding portion, and the clamping groove is formed in a circumferential direction of the mounting portion.

According to one embodiment of the utility model, the guide part protrudes to form a positioning ring at one side contacted with the second resetting piece, and the second resetting piece is sleeved on the outer wall of the positioning ring, so that the second resetting piece is stably connected with the guide part.

According to an embodiment of the utility model, the housing protrudes upwards around each of the through openings to form a sealing ring.

Drawings

Figure 1 shows a semi-cut perspective view of a control valve block according to the present utility model.

Figure 2 shows a semi-cut perspective view of the control valve of the present utility model.

Fig. 3 shows a magnified view of the portion a of fig. 2 in accordance with the utility model.

Fig. 4 shows a perspective view of the housing of the control valve pack according to the utility model.

Fig. 5 shows a cross-sectional view of the housing of the control valve pack according to the utility model.

Fig. 6 shows a perspective view of the control valve set according to the present utility model.

Fig. 7 shows a cross-sectional view of the control valve assembly according to the present utility model.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Referring to fig. 1 to 7, a control valve set according to a preferred embodiment of the present utility model will be described in detail below. The control valve group is suitable for stably controlling the on-off states of the two channels. The control valve assembly comprises a housing 10 and at least two control valves 20.

As shown in fig. 4 to 6, the housing 10 forms a first channel 101 and a second channel 102, and the housing 10 is provided with at least two through openings 103 on the first channel 101.

The control valves 20 are provided in the housing 10, and each control valve 20 is provided to control an open/close state of one of the conduction ports 103, and can switch the open state or the closed state of the conduction port 103 back and forth. The first channel 101 communicates with the second channel 102 through any at least one of the open-state conduction ports 103, so that the housing 10 can form a channel which can be controlled to be opened and closed.

Because at least two groups of control valves 20 are arranged in the control valve group, and each control valve 20 can control the opening and closing states of the corresponding conducting opening 103, at least one conducting opening 103 in an opening state can be ensured between the first channel 101 and the second channel 102, and accordingly smooth conduction of the first channel 101 and the second channel 102 can be ensured, and the problem that a single control valve of the existing control valve group fails and the first channel 101 and the second channel 102 cannot be controlled can be solved. For example, in the present utility model, if one of the control valves 20 fails and one of the communication ports 103 cannot be opened, the other control valves 20 may be controlled to switch the other communication ports 103 to an open state, so that the first channel 101 and the second channel 103 are normally connected. The control valve group has reliable performance, and can ensure that the first channel 101 and the second channel 102 can be stably communicated. For example, the control valve set is applied to a spraying system of a fuel cell and is used for controlling the guiding of the cooling liquid, and the control valve set can ensure that the cooling liquid flows between the first channel 101 and the second channel 102, ensure that the cooling liquid can be stably sprayed on the burning fuel cell, and ensure that the fuel cell is stably extinguished so as to avoid further burning of the fuel cell.

The control valve 20 may be implemented as a solenoid valve. Preferably, the control valve 20 is implemented as a pilot solenoid valve.

Specifically, as shown in fig. 1 to 3, the control valve 20 includes a valve body 21, a solenoid driving member 22, a seal 24, a first restoring member 25, and a second restoring member 23. The valve body 21 forms a control chamber 2101, the electromagnetic driving member 22 is disposed in the control chamber 2101, the electromagnetic driving member 22 has a moving portion 221 capable of moving along the axial direction of the valve body 21, the sealing element 24 is movably disposed in the control chamber 2101, the sealing element 24 is provided with a pilot hole 2401 and a pressure relief hole 2402, the pilot hole 2401 is communicated with the first channel 101 and the control chamber 2101, and the pressure relief hole 2402 is communicated with the second channel 103 and the control chamber 2101. The moving portion 221 is provided to control opening and closing of the pilot hole 2401, and when the moving portion 221 abuts against the seal 24 and faces the pilot hole 2401, the pilot hole 2401 is closed by the moving portion 221, and when the moving portion 221 does not abut against the seal 24, the pilot hole 2401 is opened. The first restoring member 25 is located in the control chamber 2101 and is configured to restore the moving portion 221 so that the moving portion 221 always abuts against the seal member 24 without receiving other force. The second restoring member 23 is located in the control chamber 2101 and is arranged to restore the sealing member 24 such that the sealing member 24 always abuts against the conducting port 103 without any further force. When the moving portion 221 of the electromagnetic driving member 22 leaves the seal 24, the pilot hole 2401 is in an open state, the first passage 101 and the control chamber 2101 are communicated, and the fluid of the first passage 101 can flow into the control chamber 2101 from the first passage 101 and can flow into the second passage 103 through the pressure release hole 2402, so that the first passage 101 is communicated with the second passage 103 through the control chamber 2101. At this time, since the fluid can flow from the control chamber 2101 into the second channel 103, the pressure in the control chamber 2101 is reduced, but the pressure in the first channel 101 is not changed, so that the pressure below the sealing member 24 is greater than the pressure above the sealing member 24, and the fluid can push the sealing member 24 upwards due to the pressure difference between the upper and lower sides of the sealing member 24, so that the conducting port 103 is in an open state, and the first channel 101 is conducted with the second channel 102 through the conducting port 103 in the open state, so that the flow rate of the fluid flowing into the second channel 102 is increased, and the opening and closing of the conducting port 103 are controlled by controlling the opening and closing of the pilot hole 2401.

After the moving part 221 is reset by the first resetting member 25, there is no pressure difference between the upper and lower sides of the sealing member 24, and the sealing member 24 is reset by the second resetting member 23. Since the first resetting member 25 is used for enabling the moving portion 221 to be always attached to the sealing member 24, and the second resetting member 23 is also used for resetting the sealing member 24, the sealing member 24 can be stably and rapidly attached to the conducting port 103 under the action of the first resetting member 25 and the second resetting member 23.

Specifically, the electromagnetic driving member 22 is implemented as a movable magnetic valve core and a coil electrically connected to an external power source, wherein the coil is fixedly disposed in the housing 10 and located in the control chamber 2101, and the magnetic valve core is the moving part 221. When current is introduced into the coil, the coil forms a magnetic field, and the magnetic valve core can be adsorbed, so that the magnetic valve core is driven.

Further specifically, the first restoring member 25 and the second restoring member 23 are each implemented as a spring. The middle part of the coil is hollow, the first reset piece 25 is located in the middle of the coil, one end of the first reset piece 25 abuts against the magnetic valve core, and the other end of the first reset piece 25 abuts against the inner wall of the shell 10. When the coil is electrified and attracts the magnetic valve core, the magnetic valve core moves upwards near the coil and compresses the first reset piece 25, and when the magnetic valve core is powered off, the resilience force of the first reset piece 25 pushes the magnetic valve core to be in contact with the sealing piece 24. One end of the second reset element 23 abuts against the coil, and the other end of the second reset element 23 abuts against the sealing element 24. When the sealing element 24 is pushed upwards by the fluid, the second reset element 23 is compressed by the moving sealing element 24, and when the magnetic valve core is reset, the elastic force of the second reset element 23 pushes the sealing element 24 to be attached to the conducting port 103.

The pilot hole 2401 is located at the middle part of the sealing element 24, and the acting force for resetting the magnetic valve core can directly act on the sealing element 24, so that the sealing element 24 can be restored to the original position under the action of two resetting elements after moving. Preferably, the axial center lines of the first restoring member 25 and the second restoring member 23 are coaxial.

The control valve in the technical scheme is high in reliability. The pilot hole 2401 is open in the seal 24 such that the magnetic spool directly abuts the seal 24. When the coil is not energized, the magnetic spool is not actuated, ensuring that the seal 24 does not move. When the coil is energized, the magnetic valve element acts, and the sealing member 24 has a space capable of moving upwards, so that the conducting port 103 can be in an open state. The magnetic spool controls the pilot hole 2401 and also controls the seal 24, so that the reliability of the control valve is high.

The second restoring member 23 is embodied as a pagoda spring, which has the advantages of large deformation, large load and small volume, and is suitable for the scene that the inner space of the control chamber 2101 is small.

The sealing member 24 includes an elastic member 241 and a rigid member 242, and the elastic member 241 is configured to flexibly connect the rigid member 242 and the valve body 21 such that the rigid member 242 may protrude from the valve body 21 or sink into the valve body 21, thereby achieving axial movement of the sealing member 24 along the valve body 21. The rigid member 242 is provided with the pilot hole 2401 and the relief hole 2402.

When the rigid member 242 protrudes out of the valve body 21, the rigid member 242 abuts against the through-hole 103, thereby sealing the through-hole 103, whereas when the rigid member 242 is sunk into the interior of the valve body 21, the rigid member 242 is not in contact with the through-hole 103, so that the first passage 101 and the second passage 103 can communicate directly.

Specifically, the elastic member 241 is in a ring shape, the elastic member 241 has a larger outer diameter and a smaller inner diameter, the elastic portion 241 is protruded along the axial direction of the larger outer diameter to form a protruded ring 2411, and the elastic member 241 has a larger inner diameter, and the elastic member 241 is sleeved on the outer portion of the valve body 21 through the protruded ring 2411, so that the elastic member 241 is fixedly connected with the valve body 21. The rigid member 242 is provided with a clamping groove 24201 along the circumferential direction thereof, and the groove width of the clamping groove 24201 is adapted to the thickness of the elastic member 241, so that the elastic member 241 can be clamped in the clamping groove 24201, thereby flexibly connecting the rigid member 242 and the valve body 21 with each other by the elastic member 241.

In further detail, the rigid member 242 includes a mounting portion 2421 and a guide portion 2422. The mounting portion 2421 is disposed on the guiding portion 2422, the outer diameter of the mounting portion 2421 is smaller than the inner diameter of the guiding portion 2422, the clamping groove 24201 is formed in the circumferential direction of the mounting portion 2421, and it is understood that the rigid portion 242 is connected to the elastic member 241 through the mounting portion 2421. The outer diameter of the guide part 2422 is matched with the inner diameter of the valve body 21, and when the installation part 2421 is connected with the elastic member 241, the guide part 2422 is positioned inside the valve body 21. It will be appreciated that the resilient member 241 flexibly connects the seal 24 at the notch of the valve body 21.

Preferably, since a portion of the elastic member 241 covers the relief hole 2402, the elastic member 241 is provided with a through hole communicating with the relief hole 2402, so as to ensure that the relief hole 2402 can normally communicate with the control chamber 2101 and the second channel 103.

It is further preferred that the end of the elastic member 241 near the smaller inner diameter extends in a direction away from the raised ring 2411 such that the elastic member 241 has an intermediate inner diameter. The guide part 2422 has two different outer diameters in a stepped shape, and the larger outer diameter of the guide part 2422 is matched with the inner diameter of the valve body 21. The smaller outer diameter of the guiding portion 2422 is matched with the middle inner diameter, so that the elastic member 241 is sleeved on the guiding portion 2422. When the mounting portion 2421 is engaged with the elastic member 241, the elastic member 241 is also sleeved on the outer wall of the guiding portion 2422. In this way, the portion of the rigid member 242 is engaged with the elastic member 241, and the portion of the elastic member 241 is sleeved on the rigid portion 242, so that the connection between the elastic portion 241 and the rigid member 242 is more stable.

For example, when the sealing member 24 is installed, the rigid member 242 and the elastic member 241 are assembled in advance, that is, the elastic member 241 is clamped in the clamping groove 24201, and then the protruding ring 2411 of the elastic member 241 is sleeved outside the valve body 21, so that the installation of the sealing member 24 is completed. When the sealing member 24 is installed, the second restoring member 23 just abuts against the rigid member 242.

The guiding portion 2422 protrudes on a side contacting with the second restoring member 23 to form a positioning ring 24221, and the second restoring member 23 is sleeved on the outer wall of the positioning ring 24221, so that the second restoring member 23 is stably connected with the guiding portion 2422.

An annular groove is formed in one end, close to the first reset piece 24, of the magnetic valve core along the circumferential direction. The first reset piece 25 is sleeved on the magnetic valve core through the annular groove, so that the first reset piece 25 is stably connected with the magnetic valve core.

The housing 10 forms at least two receiving surfaces 104, the receiving surfaces 104 are configured to receive the corresponding control valve 20, and the receiving surfaces 104 correspond to the control valve 20, so that the valve body 21 is stably fixed on the housing 10, and the tightness of the connection between the control valve 20 and the housing 10 is improved.

The housing 10 is upwardly convex at each of the receiving surfaces 104 to form a sealing ring 11. When the sealing member 24 approaches the receiving surface 104, the sealing member 241 contacts the sealing ring 111, and the elastic member 241 is pressed and deformed, so as to improve the sealing property of the connection between the control valve 20 and the housing 10.

Preferably, the elastic member 241 is provided with a corresponding seal groove 24101 at a side contacting the seal ring 11, and when the elastic member 241 contacts the seal ring 11, the seal groove 24101 is just sleeved outside the seal ring 11, so as to increase the contact area between the elastic member 241 and the seal ring 11, and further improve the tightness of the connection between the control valve 20 and the housing 10.

The housing 10 of the control valve assembly further includes an end cap 12, the end cap 12 is detachably disposed on the housing 10, the end cap 12 can cover at least two control valves 20, and is used for sealing the control valves 20 on the housing 10, so that the control valves 20 can stably control the connection and disconnection of the first channel 101 and the second channel 103.

Specifically, the end cap 12 is detachably provided to the housing 10 by a plurality of bolts.

The end cap 12 is formed with at least two fitting grooves, which are fitted to the outer shape of the control valve 20, so that the end cap 12 can stably fix the control valve 20 to the housing 10.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The advantages of the present utility model have been fully and effectively realized. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.

Claims

1. The control valves is suitable for the on-off state of two stable control passageways, its characterized in that, the control valves includes:

2. The control valve set according to claim 1, characterized in that the control valve is implemented as a solenoid valve.

3. The control valve set according to claim 2, wherein the control valve is implemented as a pilot-operated solenoid valve, the control valve includes a valve body, an electromagnetic driving member, a sealing member, a first reset member and a second reset member, the valve body forms a control chamber, the electromagnetic driving member is disposed in the control chamber, the electromagnetic driving member has a moving portion movable along an axial direction of the valve body, the sealing member is movably disposed in the control chamber, the sealing member is provided with a pilot hole and a relief hole, the pilot hole communicates with the first passage and the control chamber, the relief hole communicates with the second passage and the control chamber, the moving portion is disposed to control opening and closing of the pilot hole, the first reset member is disposed in the control chamber and is disposed to reset the moving portion, and the second reset member is disposed in the control chamber and is disposed to reset the sealing member.

4. A control valve group according to claim 3, characterized in that the electromagnetic drive member is embodied as a movable magnetic valve core and a coil electrically connected to the outside, which coil is provided in the housing and is located in the control chamber.

5. A control valve assembly as defined in claim 3, wherein said pilot bore is located in a central portion of said seal.

6. A control valve assembly as claimed in claim 3, wherein the sealing member comprises a resilient member and a rigid member, the resilient member being arranged to flexibly connect the rigid member and the housing such that the rigid member can protrude or retract into the housing.

7. The valve assembly according to claim 6, wherein the elastic member is in a shape of a ring, the elastic member has a larger outer diameter and a smaller inner diameter, the elastic member protrudes along the axial direction of the larger outer diameter to form a protruding ring, and the elastic member is sleeved outside the housing through the protruding ring;

8. The valve manifold of claim 7, wherein the rigid member includes a mounting portion and a guide portion, the mounting portion being disposed on the guide portion, an outer diameter of the mounting portion being smaller than an inner diameter of the guide portion, the mounting portion being circumferentially provided with the clamping groove.

9. The control valve set as claimed in claim 8, wherein the guide portion protrudes on a side contacting the second restoring member to form a positioning ring, and the second restoring member is sleeved on an outer wall of the positioning ring, so that the second restoring member is stably connected with the guide portion.

10. The valve manifold of claim 6, wherein the housing projects upwardly about each of the ports to form a sealing ring.