CN116608312A - Electromagnetic valve of automobile transmission - Google Patents
Electromagnetic valve of automobile transmission Download PDFInfo
- Publication number
- CN116608312A CN116608312A CN202310453623.3A CN202310453623A CN116608312A CN 116608312 A CN116608312 A CN 116608312A CN 202310453623 A CN202310453623 A CN 202310453623A CN 116608312 A CN116608312 A CN 116608312A
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- China
- Prior art keywords
- vertical section
- shell
- inner cavity
- piston
- iron core
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
- F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/046—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the valve being of the gate valve type or the sliding valve type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0486—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with mechanical actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The application relates to an electromagnetic valve of an automobile transmission, which comprises a shell, a return spring, a movable iron core, an electromagnetic coil assembly and a valve body, wherein the return spring is arranged on the shell; the valve body comprises a vertical section, a horizontal section, a partition plate, a pressure spring and a piston; the inner cavity of the horizontal section is divided into a first separation cavity and a second separation cavity by a baffle plate; the opening end of the vertical section is fixedly connected with the horizontal section, and the inner cavity of the vertical section is communicated with the first separation cavity; the piston is arranged in the inner cavity of the vertical section and is in sliding connection with the vertical section; the pressure spring is arranged in an inner cavity of the vertical section, a main valve port and a secondary valve port are formed in the vertical section, a limiting ring is arranged on the inner side wall of the vertical section, a through hole is formed in the bottom wall of the shell, and the inner cavity of the shell is communicated with the second separation cavity through the through hole; according to the designed automobile speed changer electromagnetic valve, the opening and closing of the main valve port are automatically adjusted according to the change of the fluid flow in the inner cavity of the horizontal section, so that the fluid through flow of the automobile speed changer electromagnetic valve is realized, and the service life of the automobile speed changer electromagnetic valve is prolonged.
Description
Technical Field
The application relates to the technical field of automobile transmissions, in particular to an electromagnetic valve of an automobile transmission.
Background
Solenoid valves are an automated base element formed by solenoid components and valve body components for controlling fluid direction, velocity, and other parameters; the electromagnetic component of the electromagnetic valve consists of a fixed iron core, a movable iron core, a coil and other components; the valve body part consists of a slide valve core, a slide valve sleeve, a spring base and the like; when the coil is energized or de-energized, the operation of the magnetic core will cause fluid to pass through the valve body or be shut off to achieve the purpose of changing the direction of the fluid.
The patent document with the application number of 201520826105.2 discloses an automatic gearbox electromagnetic valve, which comprises a shell, a movable iron core and an electromagnetic coil assembly assembled in the shell, wherein the movable iron core is assembled in the center of the electromagnetic coil assembly, a push rod is arranged in the center of the movable iron core, a valve body is assembled at the front part of the shell, a pressure inlet and a pressure outlet are arranged on the valve body, a pressure cavity is arranged in the valve body, a valve core is arranged in the pressure cavity, and the front end of the push rod is matched with the valve core; the valve body is internally provided with a pressure storage chamber which is communicated with the pressure cavity, the pressure storage chamber is internally provided with a piston, a spring, a gasket and a clamp spring, one end of the spring is propped against the gasket, the other end of the spring is propped against the piston, and the clamp spring is arranged on the outer side of the gasket and is clamped with the valve body; the ejector rod in the center of the movable iron core is matched with the opening degree of the valve core control valve according to the current of the electromagnetic coil assembly.
With respect to the above-mentioned related art, the applicant believes that in the process of adjusting the fluid velocity, different openings between the pressure inlet and the pressure outlet are achieved by changing the current flowing into the solenoid assembly, but when the fluid flow through the gearbox solenoid valve changes, the current of the solenoid assembly needs to be continuously adjusted, which affects the service life of the automatic gearbox solenoid valve.
Disclosure of Invention
In order to prolong the service life of an electromagnetic valve of an automobile transmission, the application provides the electromagnetic valve of the automobile transmission.
An electromagnetic valve of an automobile transmission comprises a shell, a return spring, a movable iron core, an electromagnetic coil assembly and a valve body; the valve body is fixedly connected with the outer side wall of the shell, and the electromagnetic coil assembly is arranged in the shell; the movable iron core is arranged in the inner cavity of the shell, and the reset spring drives the movable iron core to reset;
the valve body comprises a vertical section, a horizontal section, a partition plate, a pressure spring and a piston;
the partition board is fixedly arranged in the horizontal section, and divides the inner cavity of the horizontal section into a first separation cavity and a second separation cavity; the opening end of the vertical section is fixedly connected with the horizontal section, and the inner cavity of the vertical section is communicated with the first separation cavity; the piston is arranged in the inner cavity of the vertical section, is coaxially connected with the vertical section and is in sliding connection with the vertical section; the pressure spring is arranged in the inner cavity of the vertical section, and drives the piston to move towards the opening end of the vertical section;
the vertical section is provided with a main valve port and a secondary valve port, the main valve port is positioned right above the secondary valve port, the main valve port and the secondary valve port are communicated with the inner cavity of the shell, the inner side wall of the vertical section is provided with a limiting ring, the limiting ring is positioned between the main valve port and the secondary valve port, and when the piston is in butt joint with the limiting ring, the piston cuts off the first separation cavity from the inner cavity of the shell; the method comprises the steps of carrying out a first treatment on the surface of the
A through hole is formed in the bottom wall of the shell, and the inner cavity of the shell is communicated with the second separation cavity through the through hole;
the movable iron core is used for blocking the through hole, and the electromagnetic coil assembly drives the movable iron core to move to one side far away from the through hole.
By adopting the technical scheme, in the process that oil flows into the first separation cavity through the electromagnetic valve, then flows into the inner cavity of the vertical section along the first separation cavity, when the pressure of the oil is smaller than the elastic force of the pressure spring, the oil in the inner cavity of the vertical section flows into the inner cavity of the shell along the secondary valve port, the electromagnetic coil component is communicated with the power supply, and the electromagnetic coil component drives the movable iron core to move, so that the movable iron core is separated from the through hole, and the oil flows into the second separation cavity along the inner cavity of the shell, thereby realizing the through flow of small-flow oil; when the pressure of the oil is greater than the elasticity of the pressure spring, the oil applies force to the piston, the piston applies force to the pressure spring, so that the pressure spring is deformed, the pressure spring is compressed, the piston slides along the vertical section, the piston moves to the side far away from the horizontal section, when the piston moves to the state that the main valve port is communicated with the inner cavity of the vertical section, the oil flows into the inner cavity of the shell along the main valve port, the electromagnetic coil assembly is communicated with a power supply, the electromagnetic coil assembly drives the movable iron core to move, the movable iron core is separated from the through hole, and the oil flows into the second separation cavity along the inner cavity of the shell, so that the through flow of large-flow oil is realized; the designed electromagnetic valve for the automobile transmission can drive the piston to move along the vertical section when the fluid flow in the inner cavity of the horizontal section changes, so that the opening and closing of the main valve port are automatically regulated according to the change of the fluid flow in the inner cavity of the horizontal section, the fluid through flow of the electromagnetic valve for the automobile transmission is further realized, the current flowing into the electromagnetic coil assembly is prevented from being repeatedly changed in the prior art, and the service life of the electromagnetic valve for the automobile transmission is prolonged.
Optionally, the thickness of the piston is greater than the height of the main valve port.
Through adopting above-mentioned technical scheme, the piston thickness of design is greater than main valve mouth height, is convenient for carry out the shutoff to main valve mouth completely through the piston, and then is convenient for realize the unidirectional fluid through-flow of solenoid valve through the secondary valve port.
Optionally, the vertical section is threaded with a threaded blocking rod, the threaded blocking rod is coaxially connected with the vertical section, and the threaded blocking rod is located right above the piston.
Through adopting above-mentioned technical scheme, rotate the screw thread putty bar, because screw thread putty bar and vertical section threaded connection for the length that the threaded rod stretched into vertical section inner chamber changes, stretches into the length of vertical section inner chamber through the adjusting threaded rod, and then restrict the maximum height of piston motion, in order to adjust the cross-sectional dimension when opening of main valve port, and can also make main valve port be in normally closed state.
Optionally, a flaring plug is arranged at one end of the threaded plugging rod extending into the inner cavity of the vertical section.
Through adopting above-mentioned technical scheme, the flaring end cap of design is convenient for carry out spacingly to the range of motion of screw thread putty rod, avoids threaded rod and vertical section separation, simultaneously, increases the area of contact of screw thread putty rod and piston, reduces the damage to the piston, prolongs the life of piston.
Optionally, the piston includes coaxial through-flow portion and shutoff portion that sets up, through-flow portion is located the top of shutoff portion, shutoff portion is used for shutoff the main valve mouth, the drainage groove has been seted up on the through-flow portion periphery wall, the leakage fluid dram has been seted up on the vertical section lateral wall, the leakage fluid dram with the main valve mouth passes through drainage groove intercommunication, install on the vertical section and be used for shutoff the rubber of leakage fluid dram is stopped up.
By adopting the technical scheme, the piston is arranged in a segmented mode, the plugging part of the piston is used for plugging the main valve port, and the purpose that the inner cavity of the vertical section is communicated with the inner cavity of the shell through a single secondary valve port is achieved; when sundries in fluid cause silting to the main valve or sundries in fluid are deposited in the inner cavity of the shell, the electromagnetic coil assembly is adjusted to drive the movable iron core to move, so that the movable iron core is blocked to the through hole, then rubber is adjusted to be blocked, so that the rubber is blocked in the inner cavity of the vertical section, the threaded blocking rod is adjusted, the threaded blocking rod is connected with the threads of the vertical section, the threaded blocking rod drives the flaring plug to move, so that the length of the threaded blocking rod extending into the inner cavity of the vertical section changes, when the pressure of the oil is larger than the elasticity of the pressure spring, the oil applies force to the piston, the piston applies force to the pressure spring, so that the pressure spring deforms, the pressure spring compresses, the piston moves along the vertical section, when the piston abuts against the flaring plug, the main valve is communicated with the liquid outlet through the diversion groove, then oil is led into the first separation cavity, the oil flows into the inner cavity of the vertical section along the first separation cavity, the oil flows into the main valve port along the inner cavity of the shell, the oil flows into the liquid outlet along the main valve port, and flows out of the liquid outlet along the main valve port, and the pressure spring is discharged from the liquid outlet, and the pressure spring compresses the pressure spring, and the sundries in the main valve port and the inner cavity are cleaned.
Optionally, the electromagnetic coil assembly includes a winding skeleton, an enamelled coil, a substrate and two external pole pieces, the enamelled coil is wound on the winding skeleton, the substrate is clamped with the winding skeleton, the substrate and the winding skeleton are both mounted on the housing, the external pole pieces are arranged above the substrate, and the joints of the enamelled coil pass through the substrate to be respectively electrically connected with the external pole pieces;
the winding framework is coaxially provided with a guide chute, one end of the movable iron core extends into the guide chute, the movable iron core can slide along the guide chute, the reset spring is installed in the guide chute, one end of the reset spring is connected with the end of the winding framework, and the other end of the reset spring is connected with the movable iron core.
By adopting the technical scheme, when the electromagnetic coil assembly is used, the external pole piece is connected with a power supply, current flows to the enamelled coil along the external pole piece, the electromagnetic coil generates electromagnetic force, so that the movable iron core moves to one side far away from the through hole, the reset spring is compressed, lifting of the movable iron core is realized, further separation of the movable iron core and the through hole is realized, oil through flow of the through hole is realized, the external pole piece is disconnected from the power supply, and the reset spring is recovered, so that the movable iron core moves to one side of the through hole, and further plugging of the through hole is realized; the electromagnetic iron core component is convenient for driving the movable iron core to slide along the guide chute, and further realizes opening and closing of the through hole.
Optionally, install on the wire winding skeleton and be used for enameled wire end winding wrapping post of enameled wire coil, offered on the base plate and be used for the wrapping post with enameled wire end of enameled wire coil passes the wiring groove, twine in the enameled wire end connection of enameled wire coil of wrapping post in on the external pole piece.
Through adopting above-mentioned technical scheme, the wrapping post of design is convenient for twine enameled wire of enameled wire coil, realizes the fixed of enameled wire tip in the enameled wire coil, guarantees that enameled wire in the enameled wire coil is in the tensioning state, and then is convenient for follow-up with enameled wire end connection in the enameled wire coil at external pole piece, realizes the break-make of enameled wire coil.
Optionally, the casing includes lower housing and upper housing, lower housing and upper housing detachable connection, lower housing cover is located the wire winding skeleton with the enameled wire outside, the base plate is located lower housing top.
By adopting the technical scheme, the lower housing of the shell which is arranged in a segmented way is convenient for protecting the enamelled coil and the winding framework, so that the service life of the electromagnetic valve of the automobile transmission is prolonged; in addition, the winding framework is used as a male die to be placed in a die, so that the lower housing is convenient to be injection-molded.
Optionally, the upper housing is covered on the outer periphery of the external pole piece and the substrate, and a clamping block for clamping the upper housing is arranged on the top wall of the winding framework.
Through adopting above-mentioned technical scheme, the last housing of setting is convenient for carry out the joint to external pole piece, simultaneously, is convenient for protect external pole piece, base plate and wrapping post, improves the life of automotive transmission solenoid valve.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the fluid flow in the inner cavity of the horizontal section changes, the designed electromagnetic valve of the automobile transmission can drive the piston to move along the vertical section, so that the opening and closing of the main valve port are automatically regulated according to the change of the fluid flow in the inner cavity of the horizontal section, the fluid through-flow of the electromagnetic valve of the automobile transmission is realized, the current which is led into the electromagnetic coil assembly is prevented from being repeatedly changed in the prior art, and the service life of the electromagnetic valve of the automobile transmission is prolonged;
2. according to the designed electromagnetic valve of the automobile transmission, the length of the threaded rod extending into the inner cavity of the vertical section is changed by adjusting the threaded blocking rod due to the threaded connection of the threaded blocking rod and the vertical section, the maximum height of the piston movement is further limited by adjusting the length of the threaded rod extending into the inner cavity of the vertical section, so that the cross section size of the main valve port during opening is conveniently adjusted, and the main valve port can be in a normally closed state;
3. the designed electromagnetic valve of the automobile transmission is arranged in a sectionalized way through a piston, and a blocking part of the electromagnetic valve is used for blocking a main valve port, so that the inner cavity of the vertical section is communicated with the inner cavity of the shell through a single secondary valve port; when sundries in fluid cause silting to the main valve or sundries in fluid are deposited in the inner cavity of the shell, the electromagnetic coil assembly is adjusted to drive the movable iron core to move, so that the movable iron core is blocked to the through hole, then rubber is adjusted to be blocked, so that the rubber is blocked in the inner cavity of the vertical section, the threaded blocking rod is adjusted, the threaded blocking rod is connected with the threads of the vertical section, the threaded blocking rod drives the flaring plug to move, so that the length of the threaded blocking rod extending into the inner cavity of the vertical section changes, when the pressure of the oil is larger than the elasticity of the pressure spring, the oil applies force to the piston, the piston applies force to the pressure spring, so that the pressure spring deforms, the pressure spring compresses, the piston moves along the vertical section, when the piston abuts against the flaring plug, the main valve is communicated with the liquid outlet through the diversion groove, then oil is led into the first separation cavity, the oil flows into the inner cavity of the vertical section along the first separation cavity, the oil flows into the main valve port along the inner cavity of the shell, the oil flows into the liquid outlet along the main valve port, and flows out of the liquid outlet along the main valve port, and the pressure spring is discharged from the liquid outlet, and the pressure spring compresses the pressure spring, and the sundries in the main valve port and the inner cavity are cleaned.
Drawings
FIG. 1 is a schematic view showing the overall structure of an electromagnetic valve for an automotive transmission according to embodiment 1 of the present application;
FIG. 2 is a cross-sectional view of a solenoid valve for an automotive transmission according to embodiment 1 of the present application;
fig. 3 is a partial schematic view of the electromagnetic valve for the transmission of the automobile according to embodiment 1 of the present application, which is intended to illustrate a solenoid assembly.
Reference numerals illustrate: 1. a valve body; 11. a vertical section; 111. a main valve port; 112. a secondary valve port; 113. a liquid outlet; 114. rubber blocking; 115. a limiting ring; 12. a horizontal section; 13. a partition plate; 14. a pressure spring; 15. a piston; 151. a through-flow part; 152. a blocking part; 153. drainage grooves; 16. a first compartment; 17. a second compartment; 18. a through-flow hole; 19. a thread blocking rod; 191. flaring plugs; 192. a rotating handle; 2. a housing; 21. an upper housing; 22. a lower housing; 3. a return spring; 4. a movable iron core; 5. an electromagnetic coil assembly; 51. a winding framework; 52. an enamelled coil; 53. a substrate; 54. externally connected pole pieces; 55. a guide chute; 56. a winding post; 57. wiring grooves; 58. a clamping block; 59. and a limit column.
Detailed Description
The application is described in further detail below with reference to fig. 1-3.
The embodiment of the application discloses an electromagnetic valve of an automobile transmission.
Referring to fig. 1 and 2, an electromagnetic valve for an automotive transmission includes a housing 2, a return spring 3, a movable iron core 4, a solenoid assembly 5, and a valve body 1; the valve body 1 is fixedly connected with the outer side wall of the shell 2, and in the embodiment, the shell 2 is welded with the valve body 1; the electromagnetic coil assembly 5 and the movable iron core 4 are both installed in the inner cavity of the shell 2, and the movable iron core 4 is installed in the inner cavity of the electromagnetic coil assembly 5, so that the movable iron core 4 is driven to move through the electromagnetic coil assembly 5, and the reset spring 3 is used for driving the movable iron core 4 to reset.
Referring to fig. 1 and 2, the valve body 1 includes a vertical section 11, a horizontal section 12, a diaphragm 13, a pressure spring 14, and a piston 15; the partition plate 13 is fixedly arranged in the inner cavity of the horizontal section 12, the partition plate 13 is concentrically arranged with the horizontal section 12, the partition plate 13 divides the inner cavity of the horizontal section 12 into a first separation cavity 16 and a second separation cavity 17, and the partition plate 13 is integrally connected with the horizontal section 12 in the embodiment; the open end of the vertical section 11 is fixedly connected with the horizontal section 12, in the application, the open end of the vertical section 11 is welded with the horizontal section 12, the inner cavity of the vertical section 11 is communicated with the first separation cavity 16, and the vertical section 11 is arranged along the radial direction of the horizontal section 12; the piston 15 is arranged in the inner cavity of the vertical section 11, the piston 15 is coaxially connected with the vertical section 11, and the piston 15 is in sliding connection with the vertical section 11, so that the piston 15 can slide along the seal of the inner cavity of the vertical section 11; the pressure spring 14 is installed in the inner cavity of the vertical section 11, and the pressure spring 14 drives the piston 15 to move towards the opening end of the vertical section 11, in the embodiment, one end of the pressure spring 14 is clamped with the vertical section 11, and the other end of the pressure spring is clamped with the piston 15; the vertical section 11 is provided with a main valve port 111 and a secondary valve port 112, the main valve port 111 is positioned right above the secondary valve port 112, the main valve port 111 and the secondary valve port 112 are all arranged through the vertical section 11, the main valve port 111 and the secondary valve port 112 are communicated with the inner cavity of the shell 2, the inner side wall of the vertical section 11 is provided with a limiting ring 115, the limiting ring 115 is coaxially welded with the vertical section 11 in the embodiment, the limiting ring 115 is positioned between the main valve port 111 and the secondary valve port 112, when the piston 15 is abutted with the limiting ring 115, the piston 15 cuts off the first separation cavity 16 and the inner cavity of the shell 2, so that oil can only flow into the inner cavity of the shell 2 through the secondary valve port 112, and in the embodiment, the thickness of the piston 15 is larger than the height of the main valve port 111; the bottom wall of the shell 2 is provided with a through hole 18, and the inner cavity of the shell 2 is communicated with the second separation cavity 17 through the through hole 18; when the electromagnetic coil is in an electrified state, the electromagnetic coil assembly 5 drives the movable iron core 4 to move towards one end far away from the through hole 18, so that the through hole 18 is opened, meanwhile, the reset spring 3 is compressed, and when the electromagnetic coil is powered off, the reset spring 3 drives the movable iron core 4 to reset, so that the movable iron core 4 seals the through hole 18.
Referring to fig. 2, in addition, the piston 15 includes a through-flow portion 151 and a blocking portion 152 coaxially disposed, in this embodiment, the through-flow portion 151 and the blocking portion 152 are integrally connected, and the through-flow portion 151 is located above the blocking portion 152, the blocking portion 152 is used for blocking the main valve port 111, in this embodiment, the thickness of the blocking portion 152 is greater than the height of the main valve port 111, a drainage groove 153 is formed in the peripheral wall of the through-flow portion 151, the drainage groove 153 is annularly disposed, a drain port 113 is formed in the side wall of the vertical section 11, and the drain port 113 is communicated with the main valve port 111 through the drainage groove 153 by adjusting the height of the through-flow portion 151; the vertical section 11 is provided with a rubber plug 114 for blocking the liquid drain 113, and the rubber plug 114 is in threaded connection with the vertical section 11 in the embodiment.
Referring to fig. 2, on the other hand, in order to limit the movement range of the piston 15, a threaded blocking rod 19 is connected on the vertical section 11 in a threaded manner, the threaded blocking rod 19 is coaxially connected with the vertical section 11, the threaded blocking rod 19 is located right above the piston 15, a flaring blocking head 191 is arranged at one end of the threaded blocking rod 19 extending into the inner cavity of the vertical section 11, in the embodiment, the flaring blocking head 191 is integrally connected with the threaded blocking rod 19, the cross-sectional area of the flaring blocking head 191 is larger than the cross-sectional area of the threaded blocking rod 19, the threaded blocking rod 19 is coaxially connected with the flaring blocking head 191, so that the threaded blocking rod 19 is prevented from being separated from the vertical section 11, meanwhile, the contact area between the threaded blocking rod 19 and the piston 15 is increased, and the service life of the piston 15 is prolonged; by rotating the thread blocking rod 19, the depth of the flaring plugs 191 extending into the inner cavity of the vertical section 11 is adjusted so as to limit the movement range of the piston 15; to facilitate rotation of the screw thread stop 19, a rotary handle 192 is removably attached to the end of the screw thread stop 19 extending beyond the vertical section 11.
Referring to fig. 2 and 3, the electromagnetic coil assembly 5 includes a winding frame 51, an enamelled coil 52, a base plate 53, two limiting posts 59, two winding posts 56 and two external pole pieces 54, the housing 2 includes a lower housing 22 and an upper housing 21, the lower housing 22 is detachably connected with the upper housing 21, the enamelled coil 52 is wound on the winding frame 51, the lower housing 22 is covered on the outer circumferences of the winding frame 51 and the enamelled coil 52, the limiting posts 59 and the winding posts 56 are fixed on the top wall of the winding frame 51, the limiting posts 59 are uniformly connected with the winding frame 51 and the winding posts 56 and the winding frame 51, the limiting posts 59, the winding posts 56 and the winding frame 51 are axially arranged in parallel, the winding posts 56 are used for the ends of enamelled wires of the enamelled coil 52, a wiring groove 57 for the enamelled wires of the winding posts 56 and the enamelled coil 52 to pass through is formed in the base plate 53, and the end of the enamelled coil 52 wound on the winding posts 56 is connected with the external pole pieces 54; the base plate 53 is located above the winding framework 51, the limiting post 59 and the winding post 56 penetrate through the base plate 53, and two ends of the enameled wire of the enameled coil 52 are respectively wound on the winding post 56 so as to ensure that the enameled wire of the enameled coil 52 is in a tensioning state; the extending section of the limiting post 59 extending out of the base plate 53 is connected with the external pole piece 54, in the embodiment, the external pole piece 54 is clamped on the limiting post 59, and then the enameled wire of the enameled coil 52 is wound and clamped on the external pole piece 54, so that the electric connection between the enameled coil 52 and the external pole piece 54 is realized; the base plate 53 is clamped with the winding framework 51, and the base plate 53 is clamped in the inner cavity of the upper housing 21; the wire winding framework 51 is coaxially provided with a guide chute 55, the guide chute 55 is arranged along the axial direction of the wire winding framework 51, the guide chute 55 and the wire winding framework 51 are coaxially arranged, one end of the movable iron core 4 stretches into the guide chute 55, the movable iron core 4 can slide along the guide chute 55, the reset spring 3 is arranged in the guide chute 55, one end of the reset spring 3 is connected with the end part of the wire winding framework 51, the other end of the reset spring is connected with the movable iron core 4, and in the embodiment, the reset spring 3, the lower housing 22 and the movable iron core 4 are all clamped, so that the reset spring 3 is fixed; the top wall of the winding framework 51 is provided with a clamping block 58 for clamping the upper housing 21, the clamping block 58 is integrally connected with the winding framework 51, and one end of the clamping block 58 extending out of the base plate 53 is clamped on the upper housing 21.
The implementation principle of the electromagnetic valve of the automobile transmission provided by the embodiment of the application is as follows: in the process that oil passes through the electromagnetic valve, after flowing into the first separation cavity 16, the oil flows into the inner cavity of the vertical section 11 along the first separation cavity 16, when the pressure of the oil is smaller than the elastic force of the pressure spring 14, the oil in the inner cavity of the vertical section 11 flows into the inner cavity of the shell 2 along the secondary valve port 112, the electromagnetic coil assembly 5 is communicated with a power supply, the electromagnetic coil assembly 5 drives the movable iron core 4 to move, so that the movable iron core 4 is separated from the through hole 18, and the oil flows into the second separation cavity 17 along the inner cavity of the shell 2, thereby realizing the through flow of small-flow oil; when the pressure of the oil is greater than the elasticity of the pressure spring 14, the oil applies force to the piston 15, the piston 15 applies force to the pressure spring 14, so that the pressure spring 14 deforms, the pressure spring 14 compresses, the piston 15 slides along the vertical section 11, the piston 15 moves to the side far away from the horizontal section 12, when the main valve opening 111 is communicated with the inner cavity of the vertical section 11, the oil flows into the inner cavity of the shell 2 along the main valve opening 111, the electromagnetic coil assembly 5 is communicated with a power supply, the electromagnetic coil assembly 5 drives the movable iron core 4 to move, the movable iron core 4 is separated from the through hole 18, and the oil flows into the second separation cavity 17 along the inner cavity of the shell 2, so that the through flow of the oil with large flow rate is realized.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (9)
1. An electromagnetic valve of an automobile transmission is characterized by comprising a shell (2), a return spring (3), a movable iron core (4), an electromagnetic coil assembly (5) and a valve body (1); the valve body (1) is fixedly connected with the outer side wall of the shell (2), and the electromagnetic coil assembly (5) is arranged in the shell (2); the movable iron core (4) is arranged in the inner cavity of the shell (2), and the reset spring (3) drives the movable iron core (4) to reset;
the valve body (1) comprises a vertical section (11), a horizontal section (12), a baffle plate (13), a pressure spring (14) and a piston (15);
the partition board (13) is fixedly arranged in the horizontal section (12), and the partition board (13) divides the inner cavity of the horizontal section (12) into a first separation cavity (16) and a second separation cavity (17); the opening end of the vertical section (11) is fixedly connected with the horizontal section (12), and the inner cavity of the vertical section (11) is communicated with the first separation cavity (16); the piston (15) is arranged in the inner cavity of the vertical section (11), the piston (15) is coaxially connected with the vertical section (11), and the piston (15) is in sliding connection with the vertical section (11); the pressure spring (14) is arranged in the inner cavity of the vertical section (11), and the pressure spring (14) drives the piston (15) to move towards the opening end of the vertical section (11);
the vertical section (11) is provided with a main valve port (111) and a secondary valve port (112), the main valve port (111) is positioned right above the secondary valve port (112), the main valve port (111) and the secondary valve port (112) are communicated with the inner cavity of the shell (2), the inner side wall of the vertical section (11) is provided with a limiting ring (115), the limiting ring (115) is positioned between the main valve port (111) and the secondary valve port (112), and when the piston (15) is abutted against the limiting ring (115), the piston (15) cuts off the first separation cavity (16) from the inner cavity of the shell (2);
a through hole (18) is formed in the bottom wall of the shell (2), and the inner cavity of the shell (2) is communicated with the second separation cavity (17) through the through hole (18);
the movable iron core (4) is used for blocking the through hole (18), and the electromagnetic coil assembly (5) drives the movable iron core (4) to move to the side far away from the through hole (18).
2. The automotive transmission solenoid valve according to claim 1, characterized in that: the thickness of the piston (15) is greater than the height of the main valve port (111).
3. The automotive transmission solenoid valve according to claim 1, characterized in that: the vertical section (11) is connected with a thread blocking rod (19) in a threaded mode, the thread blocking rod (19) is coaxially connected with the vertical section (11), and the thread blocking rod (19) is located right above the piston (15).
4. A motor transmission solenoid valve according to claim 3 wherein: one end of the thread blocking rod (19) extending into the inner cavity of the vertical section (11) is provided with a flaring plug (191).
5. The automotive transmission electromagnetic valve according to claim 4, characterized in that: piston (15) are including coaxial through-flow portion (151) and shutoff portion (152) that set up, through-flow portion (151) are located the top of shutoff portion (152), shutoff portion (152) are used for the shutoff main valve mouth (111), drainage groove (153) have been seted up on through-flow portion (151) peripheral wall, liquid outlet (113) have been seted up on vertical section (11) lateral wall, liquid outlet (113) with main valve mouth (111) are through drainage groove (153) intercommunication, install on vertical section (11) be used for the shutoff rubber stopper (114) of liquid outlet (113).
6. The automotive transmission solenoid valve according to claim 1, characterized in that: the electromagnetic coil assembly (5) comprises a winding framework (51), an enamelled coil (52), a substrate (53) and two external pole pieces (54), wherein the enamelled coil (52) is wound on the winding framework (51), the substrate (53) is clamped with the winding framework (51), the substrate (53) and the winding framework (51) are both arranged on the shell (2), the external pole pieces (54) are arranged above the substrate (53), and joints of the enamelled coil (52) penetrate through the substrate (53) to be respectively electrically connected with the external pole pieces (54);
the utility model discloses a wire winding frame, including wire winding frame (51) and movable iron core (4), wire winding frame (51) is gone up coaxial to have seted up and have led spout (55), movable iron core (4) one end stretches into lead spout (55), just movable iron core (4) can be followed lead spout (55) and slide, reset spring (3) install in lead in spout (55), just reset spring (3) one end with wire winding frame (51) end connection, the other end with movable iron core (4) are connected.
7. The automotive transmission electromagnetic valve according to claim 6, characterized in that: the enameled wire end of the enameled coil (52) is wound on the base plate (53), a wiring groove (57) used for allowing the enameled wire end of the enameled coil (52) to pass through is formed in the base plate (53), and the enameled wire end of the enameled coil (52) wound on the winding post (56) is connected to the external pole piece (54).
8. The automotive transmission electromagnetic valve according to claim 7, characterized in that: the shell (2) comprises a lower shell (22) and an upper shell (21), the lower shell (22) is detachably connected with the upper shell (21), the lower shell (22) is covered outside the winding framework (51) and the enamelled coil (52), and the substrate (53) is located above the lower shell (22).
9. The automotive transmission electromagnetic valve according to claim 7, characterized in that: the upper housing (21) is covered on the outer periphery of the external pole piece (54) and the substrate (53), and a clamping block (58) for clamping the upper housing (21) is arranged on the top wall of the winding framework (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310453623.3A CN116608312A (en) | 2023-04-22 | 2023-04-22 | Electromagnetic valve of automobile transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310453623.3A CN116608312A (en) | 2023-04-22 | 2023-04-22 | Electromagnetic valve of automobile transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116608312A true CN116608312A (en) | 2023-08-18 |
Family
ID=87682659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310453623.3A Pending CN116608312A (en) | 2023-04-22 | 2023-04-22 | Electromagnetic valve of automobile transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116608312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118257897A (en) * | 2024-05-30 | 2024-06-28 | 胜利阀门有限公司 | Valve assembly convenient to control opening and closing are slowed down |
-
2023
- 2023-04-22 CN CN202310453623.3A patent/CN116608312A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118257897A (en) * | 2024-05-30 | 2024-06-28 | 胜利阀门有限公司 | Valve assembly convenient to control opening and closing are slowed down |
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