CN216951914U - High-flow negative pressure micro valve - Google Patents
High-flow negative pressure micro valve Download PDFInfo
- Publication number
- CN216951914U CN216951914U CN202220356295.6U CN202220356295U CN216951914U CN 216951914 U CN216951914 U CN 216951914U CN 202220356295 U CN202220356295 U CN 202220356295U CN 216951914 U CN216951914 U CN 216951914U
- Authority
- CN
- China
- Prior art keywords
- valve port
- negative pressure
- port
- valve
- iron core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model belongs to the technical field of valves, and particularly relates to an electromagnetic valve. A high-flow negative pressure micro valve comprises a valve body and an electromagnetic part; the valve body is provided with a negative pressure breaking opening, a negative pressure using port, a negative pressure source interface, a left valve port and a right valve port, the negative pressure breaking opening is communicated with the negative pressure using port through the left valve port, and the negative pressure using port is communicated with the negative pressure source interface through the right valve port; still include in the valve body: the sealing gasket is positioned between the left valve port and the right valve port, can seal the left valve port or the right valve port and is linked with the electromagnetic part; and the valve port piece is positioned on the right side of the sealing gasket, a valve port piece through hole communicated with the left side wall and the right side wall is dug in the left and right directions, the left port of the valve port piece through hole is a right valve port, and the right port of the valve port piece through hole is communicated with the negative pressure source interface. The utility model can determine the circulation path only by determining the diameters of the valve ports of the left valve port and the right valve port and the stroke of each action according to the actual circulation requirement, and can obtain the circulation path far larger than negative pressure valves with the same size in the market.
Description
Technical Field
The utility model belongs to the technical field of valves, and particularly relates to an electromagnetic valve.
Background
The electromagnetic valve is a novel control device. On the ordinary pressure valve, flow valve and direction valve, the electromagnet is used to replace the original control part, and the pressure, flow or direction of the fluid is controlled remotely continuously according to the input electric signal, and the current of the electromagnet is controlled to control the mechanical movement and control the opening and closing of the valve port.
The existing electromagnetic valve generally comprises a valve body and an electromagnetic part, wherein the valve body is provided with an air inlet, an air outlet and an air outlet, and the electromagnetic part is used for realizing the on-off of the air inlet and the air outlet and the on-off of the air outlet and the air outlet. When the electromagnetic valve is used in the field of negative pressure valves, the conventional negative pressure valve generally has a small flow path, and cannot be applied to a large-flow scene.
SUMMERY OF THE UTILITY MODEL
The present invention is made in view of the above problems, and an object of the present invention is to provide a high-flow negative pressure microvalve.
A high-flow negative pressure micro valve comprises a valve body and an electromagnetic part;
the valve body is provided with a negative pressure breaking opening, a negative pressure using opening, a negative pressure source interface, a left valve opening and a right valve opening, the negative pressure breaking opening is communicated with the negative pressure using opening through the left valve opening, the negative pressure using opening is communicated with the negative pressure source interface through the right valve opening, and the left valve opening and the right valve opening are oppositely arranged;
the valve body also comprises:
the sealing gasket is positioned between the left valve port and the right valve port, can seal the left valve port or the right valve port and is linked with the electromagnetic part;
and the valve port piece is positioned on the right side of the sealing gasket, a valve port piece through hole communicated with the left side wall and the right side wall is dug in the left and right directions, the left port of the valve port piece through hole is the right valve port, and the right port of the valve port piece through hole is communicated with the negative pressure source interface.
When the negative pressure breaking port is used, the negative pressure source interface is connected with an external negative pressure source, initially, the right side surface of the sealing gasket blocks the right valve port, the right valve port is in a closed state, the left side surface of the sealing gasket is far away from the left valve port, the left valve port is in an open state, the negative pressure source interface is disconnected with the negative pressure using port at the moment, and the negative pressure breaking port is connected with the negative pressure using port and is in an atmospheric pressure state. When the electromagnetic part is electrified to work, the linkage sealing gasket moves from right to left, the left side surface of the sealing gasket blocks the left valve port, the right side surface of the sealing gasket is far away from the right valve port, the negative pressure breaking port is disconnected with the negative pressure using port at the moment, the negative pressure source interface is connected with the negative pressure using port, and the negative pressure using port is in a negative pressure state and is used for work. When the electromagnetic part loses power, the linkage sealing gasket moves from left to right and returns to the initial state, the negative pressure breaking port is communicated with the negative pressure using port, the atmosphere enters the negative pressure using port, and the pressure returns to the atmospheric pressure state. Through the structure, the circulation path can be determined only by determining the diameters of the valve ports of the left valve port and the right valve port and the stroke of each action according to the actual circulation requirement, and the circulation path far larger than negative pressure valves with the same size in the market can be obtained.
The electromagnetic portion includes:
the electromagnetic shell is positioned on the left side of the valve body and is detachably connected with the valve body;
the coil assembly is connected with the circuit board and is controlled by the circuit board to be powered on or powered off;
the static iron core is positioned on the left side in the coil assembly;
the movable iron core is positioned on the right side in the coil assembly, the left end of the movable iron core is a preset distance away from the static iron core, and the right end of the movable iron core penetrates through the electromagnetic shell;
the movable iron core spring is positioned outside the electromagnetic shell and sleeved outside the movable iron core;
the valve port includes:
the middle part of the valve port pipe penetrates through the valve port through hole along the left-right direction;
the valve port sleeve is sleeved outside the valve port pipe, an annular cavity is formed between the valve port sleeve and the outer wall of the valve port pipe, the left side of the annular cavity is of an open structure, and the right side of the annular cavity is of a closed structure;
still include in the valve body:
the left end face of the ejector rod abuts against the right end face of the movable iron core, and the right end face abuts against the left end face of the sealing gasket after the right side of the ejector rod penetrates through the left valve port;
the limiting spring is sleeved outside the valve port pipe and is positioned in the annular cavity;
and the left side of the limiting sleeve is sleeved on the right side of the sealing pad, and the right side of the limiting sleeve extends into the annular cavity and is abutted against the limiting spring.
After the electromagnetic part of the utility model is electrified, the movable iron core is attracted to move towards the left side, and the limiting sleeve is pushed to move towards the left side under the action of the limiting spring, so that the sealing gasket and the ejector rod are driven to move towards the left side together until the left side surface of the sealing gasket blocks the left valve port.
The spring force of the movable iron core spring is greater than that of the limiting spring.
The circuit board adopts a double-power circuit board, and the double-power circuit board is connected with the coil in the coil assembly.
The ejector pin adopts the ejector pin that the cross section is the structure of falling I shape, the ejector pin includes:
a connecting rod, the axial direction is the left and right direction;
two end faces are respectively and integrally connected to the left side and the right side of the connecting rod.
At least two reinforcing ribs are arranged on the outer wall of the connecting rod along the circumferential direction, the length direction of each reinforcing rib is the left-right direction, and the left side and the right side of each reinforcing rib are extended to two end faces.
The sealing gasket is of a cylindrical structure, a containing groove for containing the end face of the right side of the ejector rod is formed in the middle of the left side face of the sealing gasket in a rightward digging mode, and a ring of annular grooves which are sleeved with the limiting sleeves are formed in the periphery of the right side of the sealing gasket in a digging mode;
the outer diameter of the left side of the sealing gasket is larger than the diameter of the left valve port, and the outer diameter of the right side of the sealing gasket is larger than the diameter of the right valve port.
The right side surface of the valve port sleeve is flush with the right side surface of the valve port pipe, and the outer wall of the left side of the valve port sleeve is provided with a circle of valve port sleeve flange which is connected with the valve body in a sealing mode.
A valve body opening is formed in the right side of the valve body, and a bottom cover is arranged on the valve body opening in a sealing mode;
the valve port piece is positioned in the valve body opening, and the right side surface of the valve port piece is away from the bottom cover by a preset distance.
The electromagnetic portion further includes:
the magnetic conduction frame is positioned in the electromagnetic shell, is internally provided with the coil assembly and is fixed with the left end of the static iron core;
and the magnetic conducting sheet is positioned in the magnetic conducting frame and positioned on the right side of the coil assembly, the coil assembly is limited in the magnetic conducting frame, and the left end surface of the magnetic conducting sheet is abutted against the left side of the movable iron core spring.
At least one circle of movable iron core flange is arranged outside the right end face of the movable iron core, and an accommodating cavity for accommodating the left end face of the ejector rod is dug towards the left side in the middle of the right end face of the movable iron core;
the movable iron core spring is limited between the magnetic conductive sheet and the movable iron core flange.
Has the advantages that: the utility model can determine the circulation path only by determining the diameters of the valve ports of the left valve port and the right valve port and the stroke of each action according to the actual circulation requirement, and can obtain the circulation path far larger than negative pressure valves with the same size in the market.
Drawings
FIG. 1 is a schematic view of an overall structure of the present invention;
FIG. 2 is a bottom perspective view of FIG. 1;
fig. 3 is a cross-sectional view of fig. 1.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific drawings.
Referring to fig. 1 to 3, a high flow negative pressure microvalve includes a valve body 100 and an electromagnetic portion 200.
The solenoid portion 200 may employ an existing solenoid portion as long as the solenoid portion can be interlocked with the packing 130 in the valve body 100. The preferred electromagnetic portion 200 is configured as follows.
The electromagnetic part 200 comprises an electromagnetic shell 210, a magnetic conduction frame 220, a coil assembly 230, a magnetic conduction sheet 240, a static iron core 250, a movable iron core 260, a movable iron core spring 270 and a circuit board 280.
The solenoid housing 210 is located on the left side of the valve body 100 and is detachably coupled to the valve body 100. The flux frame 220 is located within the electromagnetic enclosure 210. Specifically, a vertical valve body connecting groove is provided on the valve body 100 from top to bottom. The electromagnetic shell 210 of the electromagnetic part 200 is provided with vertical electromagnetic connecting slots from top to bottom. The valve body 100 and the electromagnetic shell 210 are inserted, and the center line of the valve body connecting groove and the center line of the electromagnetic connecting groove are overlapped. The elastic pin is inserted into the valve body coupling groove and the solenoid coupling groove so that the valve body 100 and the solenoid portion 200 are detachably coupled by the elastic pin.
The coil assembly 230 is located within the flux frame 220. The coil assembly 230 includes a bobbin 231 and a coil 232. The frame 231 is located in the magnetic conduction frame 220, and the coil 232 is wound on the frame 231.
The framework 231 comprises a hollow framework cylindrical structure and framework flanges at two ends, the coil 232 is wound on the outer circumferential surface of the framework cylindrical structure, the framework flange on the right side is connected with the magnetic conductive sheet 240 through a framework sealing ring, and the framework flange on the left side abuts against the inner wall of the magnetic conductive frame 220. At least one ventilation groove is arranged on the inner wall of the framework cylindrical structure along the left-right direction, and preferably four ventilation grooves are uniformly arranged on the inner wall of the framework cylindrical structure. The air channel is communicated with the gap between the static iron core 250 and the magnetic conduction frame 220, and the gap is also arranged between the movable iron core 260 and the magnetic conduction sheet 240.
The coil 232 is connected to the circuit board 280, and is controlled by the circuit board 280 to be energized or de-energized. The circuit board 280 is a dual power circuit board, which is connected to the coil 232. Specifically, the circuit board 280 is designed as a dual-power circuit board to drive the coil 232, for example, the coil 232 is powered on with 3W of full load power 20ms before being powered on, the movable iron core 260 can complete the pull-in action between 2ms and 6ms, and the circuit board 280 can reduce the power of the coil 232 to 0.6W after 20ms, so as to ensure that the pulled movable and static iron cores can continuously keep the pull-in state and ensure that the coil 232 is not overheated after being powered on for a long time. The principle of the design is that the larger the distance (stroke) between the moving and static iron cores is, the smaller the attraction force between the moving and static iron cores is based on the energization of the coil, so that the coil 232 needs to be driven by high power (3W) in the initial state to ensure that the attraction force between the moving and static iron cores is large enough to attract the movable iron core 260, but after the moving and static iron cores are attracted, the distance between the moving and static iron cores is 0, so that the electromagnetic attraction force larger than the spring force of the movable iron core spring 270 can be generated by only needing small power (0.6W) to maintain the attraction state.
The conductive plate 240 is located in the conductive frame 220 and on the right side of the coil assembly 230, and confines the coil assembly 230 in the conductive frame 220. The stationary core 250 is located at the left side in the coil assembly 230, and the left end of the stationary core 250 is fixed with the magnetic conduction frame 220. The movable iron core 260 is located at the right side in the coil assembly 230, the left end of the movable iron core 260 has a preset distance with the stationary iron core 250, and the right end of the movable iron core 260 penetrates through the electromagnetic shell 210. At least one circle of movable iron core flange is arranged outside the right end face of the movable iron core 260, and the movable iron core spring 270 is limited between the magnetic conductive sheet 240 and the movable iron core flange. The middle part of the right end face of the movable iron core 260 is dug to the left to form an accommodating cavity for accommodating the left end face of the push rod 150, the left side of the push rod 150 is inserted into the accommodating cavity, and the left end face of the push rod 150 abuts against the accommodating cavity, namely the push rod 150 is not actually connected with the right end face of the movable iron core 260.
The valve body 100 has a negative pressure breaker 111, a negative pressure use port 112, a negative pressure source port 113, a left valve port 121, and a right valve port 122. The negative pressure breaking port 111 is communicated with the negative pressure using port 112 through a left valve port 121, the negative pressure using port 112 is communicated with the negative pressure source interface 113 through a right valve port 122, and the left valve port 121 and the right valve port 122 are arranged oppositely.
The negative pressure break opening 111, the negative pressure use opening 112 and the negative pressure source interface 113 are preferably arranged on the same side of the valve body 100 from left to right, as shown in fig. 2, the negative pressure break opening 111, the negative pressure use opening 112 and the negative pressure source interface 113 are arranged at the bottom of the valve body 100 from left to right, and flow channels are respectively dug inside the valve body 100 and are respectively communicated with corresponding valve ports.
Referring to fig. 3, the valve body 100 further includes a sealing gasket 130, a valve port 140, a top rod 150, a limiting spring 160, a limiting sleeve 170 and a bottom cover 180.
The gasket 130 is located between the left valve port 121 and the right valve port 122, and the gasket 130 can block the left valve port 121 or the right valve port 122 and is linked with the solenoid part 200. When the gasket 130 moves to the left, the left end face of the gasket blocks the left valve port 121, and when the gasket 130 moves to the right, the right end face of the gasket blocks the right valve port 122. The movement of the gasket 130 is interlocked by the electromagnetic portion 200.
The sealing gasket 130 is preferably of a cylindrical structure, a containing groove for containing the right end face of the mandril 150 is dug rightwards in the middle of the left side face of the sealing gasket 130, and a ring of annular grooves for sleeving the limiting sleeves 170 are dug on the periphery of the right side of the sealing gasket 130. The left outer diameter of the gasket 130 is larger than the diameter of the left valve port 121, and the right outer diameter of the gasket 130 is larger than the diameter of the right valve port 122.
The valve port 140 is located on the right side of the gasket 130, a valve port through hole 140a communicating the left and right side walls is dug in the left and right direction of the valve port 140, the left port of the valve port through hole 140a is the right valve port 122, and the right port of the valve port through hole 140a is communicated with the negative pressure source interface 113.
The valve port 140 includes a valve port tube 141 and a valve port sleeve 142. The valve port tube 141 has a middle portion penetrating the valve port through hole 140a in the left-right direction. The valve port sleeve 142 is sleeved outside the valve port pipe 141, an annular cavity is formed between the inner wall of the valve port sleeve 142 and the outer wall of the valve port pipe 141, and the left side of the annular cavity is of an open structure and the right side of the annular cavity is of a closed structure.
The right side of the valve port sleeve 142 is flush with the right side of the valve port pipe 141, the outer wall of the left side of the valve port sleeve 142 is provided with a circle of valve port sleeve flange 143, and the valve port sleeve flange 143 is hermetically connected with the valve body 100 through a sealing ring.
The left end face of the push rod 150 abuts against the right end face of the movable iron core 260, and the right end face of the push rod 150 abuts against the left end face of the sealing gasket 130 after penetrating through the left valve port 121.
The top rod 150 is a top rod 150 with an inverted-I-shaped cross section, the top rod 150 comprises a connecting rod and two end faces, the axial direction of the connecting rod is the left-right direction, and the connecting rod penetrates through the left valve port 121. At least two reinforcing ribs are arranged on the outer wall of the connecting rod along the circumferential direction, the length direction of each reinforcing rib is the left-right direction, and the left side and the right side of each reinforcing rib are extended to two end faces. The two end faces are preferably disk-shaped end faces, and the two end faces are integrally connected to the left side and the right side of the connecting rod respectively.
The limiting spring 160 is sleeved outside the valve port pipe 141 and is located in the annular cavity. The spring force of the retaining spring 160 is less than the spring force of the plunger 260 spring 270.
The left side of the limiting sleeve 170 is sleeved on the right side of the sealing gasket 130, and the right side of the limiting sleeve 170 extends into the annular cavity to abut against the limiting spring 160.
The right side of the valve body 100 is provided with a valve body opening, and a bottom cover 180 is arranged on the sealing cover on the opening of the valve body 100. The valve port 140 is located in the opening of the valve body 100 with the right side surface having a predetermined distance from the bottom cover 180.
When the utility model is used, the negative pressure source interface 113 is connected with an external negative pressure source, initially, the right side surface of the sealing gasket 130 blocks the right valve port 122, the right valve port 122 is in a closed state, the left side surface of the sealing gasket 130 is far away from the left valve port 121, the left valve port 121 is in an open state, at the moment, the negative pressure source interface 113 is disconnected with the negative pressure using port 112, and the negative pressure break port 111 is connected with the negative pressure using port 112 and is in an atmospheric pressure state. When the electromagnetic part 200 is powered on to work, the movable iron core 260 is attracted to move to the left side, and under the action of the limiting spring 160, the limiting sleeve 170 is pushed to move to the left side, so that the sealing gasket 130 and the ejector rod 150 are driven to move to the left side together, and the left side face of the sealing gasket 130 is blocked by the left valve port 121. The right side surface of the sealing gasket 130 is far away from the right valve port 122, at this time, the negative pressure breaking port 111 is disconnected from the negative pressure using port 112, the negative pressure source interface 113 is connected with the negative pressure using port 112, and the negative pressure using port 112 is in a negative pressure state for work.
When the electromagnetic part 200 is de-energized, the movable iron core 260 moves rightwards under the pushing of the restoring force of the movable iron core spring 270, the push rod 150 and the sealing gasket 130 are driven to move rightwards together, the right side face of the sealing gasket 130 blocks the right valve port 122, the initial state is returned, the negative pressure blank opening 111 is communicated with the negative pressure using opening 112, the atmosphere enters the negative pressure using opening 112, and the pressure returns to the atmospheric pressure state. Through the structure, the circulation path can be determined only by determining the diameters of the valve ports of the left valve port 121 and the right valve port 122 and the stroke of each action according to the actual circulation requirement, and the circulation path far larger than that of negative pressure valves with the same size in the market can be obtained.
The first implementation mode comprises the following steps:
at a standard atmospheric pressure of 101.3 kPa; the diameter of the left valve port 121 is 2.4 mm; the port diameter of the right port 122 is 2 mm; stroke of the gasket 130: 0.4 mm; stroke of the movable iron core 260: 0.45 mm;
the relative flow path of the present embodiment can be obtained from the above parameters as follows: 1.8mm, which is far larger than the flow path of negative pressure valves with the same size in the market;
the calculation of the relative flow path is performed as follows:
in the scene of 2mm valve port and 0.4mm stroke, that is, the valve port is completely opened, the sealing gasket is 0.4mm away from the valve port, and the opening area of the valve port is a cylindrical area S ═ Pi Dh ═ 3.14 × 2 ═ 0.4 ═ 2.5mm with the diameter of 2mm and the height of 0.4mm2(ii) a Converting into circular hole diameter S ═ pi r2As a result, r was about 0.9mm, and the relative flow path diameter was 1.8 mm.
In the case of use of absolute vacuum: when the coil 232 is electrified, the right valve port 122 is opened, the left valve port 121 is closed, the movable iron core 260 is attracted at the moment, the movable iron core 260 does not have the force to act on the mandril 150, the sealing gasket 130 is subjected to the leftward spring force of the limiting spring 160 and the rightward atmospheric pressure of the left valve port 121 with the valve port diameter of 2.4mm, and the atmospheric pressure F at the moment is obtained by a formula F which is 0.458N; in order to stably press the sealing gasket 130 on the left valve port 121 without leakage, the spring force of the limiting spring 160 can be designed to be 0.7N;
when the coil 232 is de-energized, the movable iron core 260 needs to press the sealing pad 130 on the right valve port 122, so that the spring force of the movable iron core spring 270 needs to be greater than that of the limiting spring 160, and the spring force of the movable iron core spring 270 can be designed to be 0.9N; at this time, the gasket 130 is subjected to atmospheric pressure rightward from the right valve port 122 with a valve port diameter of 2mm, and a force value is 0.318N, so that when the coil 232 is energized, a suction force of 0.318+0.9-0.7 ═ 0.518N or more needs to be generated to enable the movable iron core 260 to move leftward, the coil 232 can be designed to be driven by using a dual-power circuit board, specifically, the driving mode is that the coil 232 is energized with full-load power of 3W in the first 20ms after the energization, the movable iron core 260 can complete a pull-in action between 2ms and 6ms, and the circuit board 280 reduces the power of the coil 232 to 0.6W after the 20ms after the energization, so that the pulled-in movable iron core can continuously maintain a pull-in state, and the coil 262 is ensured not to be overheated after being energized for a long time.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. A high-flow negative pressure micro valve comprises a valve body and an electromagnetic part;
the valve body is provided with a negative pressure breaking opening, a negative pressure using port, a negative pressure source interface, a left valve port and a right valve port, wherein the negative pressure breaking opening is communicated with the negative pressure using port through the left valve port, the negative pressure using port is communicated with the negative pressure source interface through the right valve port, and the left valve port and the right valve port are oppositely arranged;
still include in the valve body:
the sealing gasket is positioned between the left valve port and the right valve port, can seal the left valve port or the right valve port and is linked with the electromagnetic part;
and the valve port piece is positioned on the right side of the sealing gasket, a valve port piece through hole communicated with the left side wall and the right side wall is dug in the left and right directions, the left port of the valve port piece through hole is the right valve port, and the right port of the valve port piece through hole is communicated with the negative pressure source interface.
2. The high flow negative pressure microvalve of claim 1, wherein said solenoid portion comprises:
the electromagnetic shell is positioned on the left side of the valve body and is detachably connected with the valve body;
the coil assembly is connected with the circuit board and is controlled by the circuit board to be powered on or powered off;
the static iron core is positioned on the left side in the coil assembly;
the movable iron core is positioned on the right side in the coil assembly, the left end of the movable iron core is a preset distance away from the static iron core, and the right end of the movable iron core penetrates through the electromagnetic shell;
the movable iron core spring is positioned outside the electromagnetic shell and sleeved outside the movable iron core;
the valve port includes:
the middle part of the valve port pipe penetrates through the valve port through hole along the left-right direction;
the valve port sleeve is sleeved outside the valve port pipe, an annular cavity is formed between the valve port sleeve and the outer wall of the valve port pipe, the left side of the annular cavity is of an open structure, and the right side of the annular cavity is of a closed structure;
still include in the valve body:
the left end face of the ejector rod abuts against the right end face of the movable iron core, and the right end face abuts against the left end face of the sealing gasket after the right side of the ejector rod penetrates through the left valve port;
the limiting spring is sleeved outside the valve port pipe and is positioned in the annular cavity;
and the left side of the limiting sleeve is sleeved on the right side of the sealing pad, and the right side of the limiting sleeve extends into the annular cavity and is abutted against the limiting spring.
3. The high flow negative pressure microvalve of claim 2, wherein the spring force of said plunger spring is greater than the spring force of said retention spring.
4. The mass flow negative pressure microvalve of claim 2, wherein said circuit board is a dual power circuit board, said dual power circuit board connecting coils in said coil assembly.
5. The mass flow negative pressure microvalve of claim 2, wherein said ejector pin is of an inverted i-shaped cross-section, said ejector pin comprising:
a connecting rod, the axial direction is the left and right direction;
two end faces are respectively and integrally connected to the left side and the right side of the connecting rod.
6. The mass-flow negative pressure microvalve according to claim 5, wherein said connecting rod has at least two ribs circumferentially disposed on an outer wall thereof, said ribs having a longitudinal direction of left and right, and left and right sides of said ribs extending to both end surfaces.
7. The mass-flow negative pressure microvalve according to claim 2, wherein the gasket has a cylindrical structure, a receiving groove for receiving the right end surface of the plunger is dug rightwards in the middle of the left side surface of the gasket, and a ring groove for receiving the stop collar is dug in the right periphery of the gasket;
the outer diameter of the left side of the sealing gasket is larger than the diameter of the left valve port, and the outer diameter of the right side of the sealing gasket is larger than the diameter of the right valve port.
8. The high flow rate negative pressure microvalve of claim 2, wherein the right side of said valve port sleeve is flush with the right side of said valve port tube, and the left outer wall of said valve port sleeve is provided with a ring of valve port sleeve flange, through which said valve port sleeve flange is sealingly connected to said valve body.
9. The mass flow negative pressure microvalve of claim 1, wherein said valve body has a valve body opening on the right side, said valve body opening having a bottom cover over a sealing cap;
the valve port piece is positioned in the valve body opening, and the right side surface of the valve port piece is away from the bottom cover by a preset distance.
10. The high flow rate negative pressure microvalve according to any one of claims 2 to 8, wherein said solenoid portion further comprises:
the magnetic conduction frame is positioned in the electromagnetic shell, is internally provided with the coil assembly and is fixed with the left end of the static iron core;
the magnetic conductive sheet is positioned in the magnetic conductive frame and on the right side of the coil assembly, the coil assembly is limited in the magnetic conductive frame, and the left end face of the magnetic conductive sheet abuts against the left side of the movable iron core spring;
at least one circle of movable iron core flange is arranged outside the right end face of the movable iron core, and an accommodating cavity for accommodating the left end face of the ejector rod is dug towards the left side in the middle of the right end face of the movable iron core;
the movable iron core spring is limited between the magnetic conductive sheet and the movable iron core flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220356295.6U CN216951914U (en) | 2022-02-22 | 2022-02-22 | High-flow negative pressure micro valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220356295.6U CN216951914U (en) | 2022-02-22 | 2022-02-22 | High-flow negative pressure micro valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216951914U true CN216951914U (en) | 2022-07-12 |
Family
ID=82292056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220356295.6U Active CN216951914U (en) | 2022-02-22 | 2022-02-22 | High-flow negative pressure micro valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216951914U (en) |
-
2022
- 2022-02-22 CN CN202220356295.6U patent/CN216951914U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3590765B2 (en) | solenoid valve | |
| CN104930244B (en) | Aviation electronics valve for high pressure low temperature gas | |
| US20080204176A1 (en) | Unequally tapped coil solenoid valve | |
| US5734310A (en) | Magnetic latching solenoid assembly | |
| JPH0239846B2 (en) | ||
| CN216951914U (en) | High-flow negative pressure micro valve | |
| CN117090926B (en) | Two-position three-way electromagnetic valve for vehicle transmission device | |
| CN116608288A (en) | Switch valve | |
| JP2001330161A (en) | Diaphragm valve | |
| CN115306939A (en) | Gas switch electromagnetic valve driven by electromagnetic coil and used by vacuum system | |
| JPH0521847Y2 (en) | ||
| CN216590197U (en) | Electromagnetic structure of electromagnetic valve for pilot control | |
| JP2968226B2 (en) | solenoid valve | |
| CN210344313U (en) | Isolated lever solenoid valve | |
| CN221170976U (en) | Solenoid valve, air suspension system and vehicle | |
| CN111022697B (en) | Electromagnetic valve | |
| CN212407736U (en) | Electromagnetic valve | |
| CN221170977U (en) | Solenoid valve, air suspension system and vehicle | |
| CN218564407U (en) | Disc-shaped high-speed switch valve | |
| CN114001191B (en) | Combined ultrahigh frequency miniature electromagnetic valve system | |
| CN113090771B (en) | Direct-acting electromagnetic valve | |
| CN217108423U (en) | Novel disc type suction electromagnetic valve | |
| CN212900013U (en) | Combined ultrahigh frequency miniature electromagnetic valve upper single body | |
| CN219282436U (en) | Butt joint valve seat | |
| WO2017131135A1 (en) | Electromagnetic switching valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |