CN116518085A - Pressure increasing valve - Google Patents

Pressure increasing valve Download PDF

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Publication number
CN116518085A
CN116518085A CN202210632236.1A CN202210632236A CN116518085A CN 116518085 A CN116518085 A CN 116518085A CN 202210632236 A CN202210632236 A CN 202210632236A CN 116518085 A CN116518085 A CN 116518085A
Authority
CN
China
Prior art keywords
valve
oil inlet
seat
cavity
oil outlet
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.)
Pending
Application number
CN202210632236.1A
Other languages
Chinese (zh)
Inventor
许辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Likeng Technology Co ltd
Original Assignee
Shanghai Likeng Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Likeng Technology Co ltd filed Critical Shanghai Likeng Technology Co ltd
Priority to CN202210632236.1A priority Critical patent/CN116518085A/en
Publication of CN116518085A publication Critical patent/CN116518085A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/025—Electrically controlled valves
    • B60T15/028—Electrically controlled valves in hydraulic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems
    • 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
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated valves
    • 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
    • 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
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transportation (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fluid Mechanics (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The pressure boosting valve comprises a valve block, wherein a valve cavity, an oil inlet channel and an oil outlet channel which are communicated with the valve cavity are arranged in the valve block, a supporting seat, a valve seat and a throttle are arranged in the valve cavity, the valve seat is accommodated in the supporting seat and is positioned at the lower end of the supporting seat, the valve seat is penetrated with an oil inlet which is communicated with the oil inlet channel and the inside of the supporting seat, the supporting seat is penetrated with an oil outlet which is communicated with the oil outlet channel and the inside of the supporting seat, the throttle is arranged below the valve seat, and the throttle is penetrated with a throttle hole along the axial direction; the pressure increasing valve further comprises a valve rod arranged above the valve seat, and the valve rod can move up and down to open the oil inlet or seal the oil inlet; when the valve rod moves downwards, the oil inlet is sealed, so that the oil inlet channel is not communicated with the oil outlet channel; when the valve rod moves upwards, the oil inlet is opened, so that the oil inlet channel is communicated with the oil outlet channel through the throttle hole, the oil inlet and the oil outlet in sequence.

Description

Pressure increasing valve
Technical Field
The invention relates to the technical field of valves, in particular to a pressure increasing valve.
Background
The hydraulic brake system of the passenger car is fully changed to the drive-by-wire direction, and the electromechanical hydraulic system is taken as a main stream type. Currently, a brake-by-wire system mainly comprises a master cylinder, an electric cylinder, a wheel cylinder, an electromagnetic valve, a sensor and an ECU; when a driver presses a brake pedal, an ECU of the linear control brake system detects a change value of a pedal displacement sensor connected with the pedal, and then determines how much brake pressure needs to be provided by an electric cylinder and requires a motor to work according to the change value, so that brake fluid is compressed, hydraulic pressure is built up and is conducted to wheel cylinders, and the requirement of providing braking force for a vehicle is met.
Pressure increasing valves are widely used in hydraulic control systems, and are required in hydraulic brake systems for vehicles, which are primarily pressurized to increase the inlet pressure to a desired outlet pressure. However, the existing booster valve is complex in overall structure, and the throttle holes are generally arranged in the supporting seat, so that the difficulty of the process of parts is high, the cost is high, and the application of the booster valve in the industrial field is limited, so that the existing booster valve is required to be improved.
Disclosure of Invention
Therefore, the invention aims to provide the booster valve with a simple integral structure and low process difficulty and cost of parts.
The invention provides a booster valve, which comprises a valve block, wherein a valve cavity, an oil inlet channel and an oil outlet channel which are communicated with the valve cavity are arranged in the valve block, a supporting seat, a valve seat and a throttle are arranged in the valve cavity, the valve seat is accommodated in the supporting seat and is positioned at the lower end of the supporting seat, an oil inlet which is communicated with the oil inlet channel and the inside of the supporting seat is arranged on the valve seat in a penetrating manner, an oil outlet which is communicated with the oil outlet channel and the inside of the supporting seat is arranged on the supporting seat in a penetrating manner, the throttle is arranged below the valve seat, and the throttle is provided with a throttle hole in a penetrating manner along the axial direction; the pressure increasing valve further comprises a valve rod arranged above the valve seat, and the valve rod can move up and down to open the oil inlet or seal the oil inlet; when the valve rod moves downwards, the oil inlet is sealed, so that the oil inlet channel is not communicated with the oil outlet channel; when the valve rod moves upwards, the oil inlet is opened, so that the oil inlet channel is communicated with the oil outlet channel through the throttle hole, the oil inlet and the oil outlet in sequence.
In an embodiment, the supporting seat is hollow and annular, is in a funnel shape with a wide upper part and a narrow lower part, the oil outlet penetrates through the side wall of the supporting seat, a first cavity is formed in the supporting seat, and the valve rod stretches into the first cavity.
In an embodiment, the inner diameter of the upper end of the supporting seat is larger than the inner diameter of the lower end of the supporting seat, a step part is formed between the upper end of the supporting seat and the lower end of the supporting seat, the oil outlet penetrates through the side wall of the upper end of the supporting seat, and the oil outlet is located above the step part.
In one embodiment, a lip ring is arranged outside the supporting seat in the valve cavity, and the lip ring is positioned below the step part and is clamped between the inner wall of the valve cavity and the outer wall of the supporting seat.
In one embodiment, the valve seat is in an inverted cylindrical shape, the oil inlet penetrates through the center of the top plate of the valve seat, a second cavity is formed in the valve seat, and the restrictor extends into the second cavity.
In one embodiment, the restrictor comprises an insertion portion and an end portion, the diameter of the end portion is larger than that of the insertion portion, the insertion portion is inserted into the second cavity from the bottom end of the valve seat and fixedly connected with the valve seat, the end portion is located outside the valve seat, and the orifice is axially arranged in the insertion portion or the end portion; when the valve rod moves upwards to open the oil inlet, the oil inlet channel is communicated with the oil outlet channel sequentially through the throttling hole, the second cavity, the oil inlet, the first cavity and the oil outlet.
In one embodiment, the oil inlet and the orifice are aligned up and down, with the oil inlet passage being located directly below the orifice.
In one embodiment, the bottom of the support seat is provided with a flange surface protruding inwards, the bottom of the valve seat is supported on the flange surface, and the flange surface is located between the bottom and the end of the valve seat.
In one embodiment, the outer wall of the valve seat is in interference fit with the inner wall of the lower end of the support seat, and the outer wall of the insertion portion is in interference fit with the inner wall of the valve seat.
In one embodiment, the restrictor is an injection molded piece made of plastic.
In one embodiment, a filter screen is further fixed on the throttle, the filter screen is located between the oil inlet channel and the throttle hole, and a ring filter screen is further arranged between the oil outlet channel and the oil outlet in the valve cavity.
In an embodiment, the booster valve is an electromagnetic valve, the booster valve further comprises a coil, a fixed iron and a movable iron, the movable iron is arranged above the fixed iron, the fixed iron is fixed, the valve rod penetrates through the fixed iron, the valve rod can move up and down in the fixed iron, the upper end of the valve rod is fixedly connected with the movable iron, an elastic piece is arranged between the movable iron and the fixed iron, the movable iron is driven to move downwards when the coil is electrified, the valve rod is driven to move downwards, the elastic piece is compressed, and the elastic piece pushes the movable iron to move upwards and drives the valve rod to move upwards through elastic force when the coil is powered off.
In an embodiment, the upper end face of the fixed iron is provided with a groove, a supporting step is arranged in the groove, the elastic piece is contained in the groove and clamped between the supporting step and the movable iron, and the elastic piece is sleeved on the valve rod.
In an embodiment, the pressure boosting valve further comprises a magnetism isolating pipe, the inside of the magnetism isolating pipe is a cavity, the fixed iron and the movable iron are contained in the magnetism isolating pipe, the fixed iron is fixedly connected with the magnetism isolating pipe, and the upper end of the supporting seat is fixedly connected with the lower end of the magnetism isolating pipe.
In one embodiment, the outer wall of the lower end of the magnetism isolating pipe and the inner wall of the upper end of the supporting seat are fixed through welding.
According to the pressurizing valve provided by the embodiment of the invention, the valve cavity, the oil inlet channel and the oil outlet channel which are communicated with the valve cavity are arranged in the valve block, the supporting seat, the valve seat and the throttle are arranged in the valve cavity, the valve seat is provided with an oil inlet which is communicated with the oil inlet channel and the inside of the supporting seat in a penetrating way, the supporting seat is provided with an oil outlet which is communicated with the oil outlet channel and the inside of the supporting seat in a penetrating way, the throttle is arranged below the valve seat, and the throttle is provided with an orifice in a penetrating way along the axial direction. The pressure increasing valve can enable the oil inlet channel to be communicated with the oil outlet channel or be blocked from being communicated by the up-and-down movement of the valve rod. The whole structure of the booster valve is simpler, and unlike the conventional design that the throttle hole is arranged in the supporting seat, the supporting seat does not contain the throttle hole, the throttle hole is arranged on the throttle, and the throttle can be an injection molding piece, so that the process difficulty is lower and the cost is lower.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a booster valve in an energized state according to an embodiment of the present invention.
Fig. 2 is a schematic partial structure of the pressure increasing valve in fig. 1.
Fig. 3 is a schematic structural diagram of a booster valve in a power-off state according to an embodiment of the present invention.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "horizontal," "vertical," and the like refer to an orientation or positional relationship based on that shown in the drawings, or that is conventionally put in place when the inventive product is used, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Moreover, the terms "first," "second," "third," and the like, are used merely to distinguish between similar elements and do not indicate or imply a relative importance or a particular order.
Furthermore, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that elements are listed and may include other elements not expressly listed.
Embodiments of the present invention provide a pressure increasing valve for increasing an inlet pressure to a desired outlet pressure, and in particular, the pressure increasing valve may be applied to a hydraulic brake system of a passenger car, for example, a brake anti-lock system (antilock brake system, ABS), a body electronic stability control system (electronic stability controller, ESC), or a brake-by-wire system, but not limited thereto, and may be applied to other hydraulic control systems in addition thereto.
Referring to fig. 1 and 2, the pressure increasing valve comprises a valve block 10, wherein a valve cavity 11, an oil inlet channel 14 and an oil outlet channel 13 are arranged in the valve block 10 and are communicated with the valve cavity 11. The valve chamber 11 is provided with a support seat 17, a valve seat 18, and a throttle 41. The valve seat 18 is accommodated in the supporting seat 17 and is positioned at the lower end of the supporting seat 17. The valve seat 18 is provided with an oil inlet 23 penetrating through the oil inlet channel 14 and the inside of the supporting seat 17. The supporting seat 17 is provided with an oil outlet 22 which is communicated with the oil outlet channel 13 and the inside of the supporting seat 17. The restrictor 41 is provided below the valve seat 18, and the restrictor 41 is provided with an orifice 42 penetrating in the axial direction.
Specifically, the pressure increasing valve is a solenoid valve, and the pressure increasing valve further comprises a valve rod 19 arranged above the valve seat 18, wherein the valve rod 19 can move up and down to open the oil inlet 23 or seal the oil inlet 23. Fig. 1 shows the energizing state of the pressure increasing valve, and referring to fig. 1, in the energizing state, the valve rod 19 is driven to move downwards, and the oil inlet 23 is sealed when the valve rod 19 moves downwards, so that the oil inlet channel 14 is not communicated with the oil outlet channel 13.
Fig. 3 shows the power-off state of the pressure increasing valve, and referring to fig. 3, in the power-off state, the valve rod 19 is driven to move upwards, and the oil inlet 23 is opened when the valve rod 19 moves upwards, so that the oil inlet channel 14 is communicated with the oil outlet channel 13 through the orifice 42, the oil inlet 23 and the oil outlet 22 in sequence.
The supporting seat 17 is hollow and annular, and is funnel-shaped with a wider upper part and a narrower lower part. An oil outlet 22 is provided through a side wall of the support base 17. The interior of the support 17 forms a first cavity 51. The valve rod 19 extends into the first cavity 51, and the bottom end of the valve rod 19 is used for sealing the oil inlet 23. Specifically, the inner diameter of the upper end of the support seat 17 is larger than the inner diameter of the lower end of the support seat 17, and a stepped portion 25 is formed between the upper end of the support seat 17 and the lower end of the support seat 17. The oil outlet 22 penetrates through the side wall of the upper end of the supporting seat 17, and the oil outlet 22 is located above the step portion 25. The valve cavity 11 is provided with a lip-shaped ring 28 outside the supporting seat 17, and the lip-shaped ring 28 is positioned below the step part 25 and is clamped between the inner wall of the valve cavity 11 and the outer wall of the supporting seat 17.
The lip ring 28 is two separate parts from the restrictor 41. The throttle 41 is an injection-molded part made of plastic. The lip ring 28 is made of soft material such as rubber or silica gel. By providing the lip ring 28, the lip ring 28 provides one-way conduction capability, seals during pressurization, and oil is passed during oil return, i.e., oil in the oil inlet passage 14 cannot leak to the oil outlet passage 13 via the outside of the support seat 17, but only can be conducted to the oil outlet passage 13 via the orifice 42, the oil inlet 23, the first cavity 51 and the oil outlet 22, but oil in the oil outlet passage 13 can return to the oil inlet passage 14 from the outside of the support seat 17 through the lip ring 28 when oil return is required. Specifically, to facilitate oil return, a gap is provided between the side wall of the throttle 41 and the inner wall of the valve chamber 11 to form the oil passage groove 35.
Specifically, the valve seat 18 is an inverted cylindrical shape, the valve seat 18 includes an annular side wall and a top plate at the top end of the side wall, and the oil inlet 23 is provided through the center of the top plate of the valve seat 18. The interior of the valve seat 18 defines a second cavity 52, and the restrictor 41 extends into the second cavity 52.
The throttle 41 includes an insertion portion 43 and an end portion 44, the diameter of the end portion 44 is larger than that of the insertion portion 43, the insertion portion 43 is inserted into the second cavity 52 from the bottom end of the valve seat 18 and fixedly connected with the valve seat 18, the end portion 44 is located outside the valve seat 18, the orifice 42 is axially disposed in the insertion portion 43 or the end portion 44, and in this embodiment, the orifice 42 is axially disposed in the insertion portion 43. When the valve rod 19 moves upward to open the oil inlet 23, the oil inlet passage 14 communicates with the oil outlet passage 13 through the orifice 42, the second cavity 52, the oil inlet 23, the first cavity 51, and the oil outlet 22 in this order. Specifically, the oil inlet 23 and the orifice 42 are aligned up and down. The oil outlet passage 13 is provided in the horizontal direction, the oil inlet passage 14 is provided in the vertical direction, and the oil inlet passage 14 is located directly below the orifice 42.
The valve seat 18 is fixedly connected with the lower end of the supporting seat 17, specifically, the valve seat 18 and the lower end of the supporting seat 17 are in interference press fit, namely, the outer wall of the valve seat 18 and the inner wall of the lower end of the supporting seat 17 are in interference fit. For increased stability, the outer wall of the valve seat 18 and the inner wall of the support seat 17 may be further fixed by laser welding to prevent displacement of the valve seat 18 relative to the support seat 17 due to prolonged hydraulic pressure. The throttle 41 and the valve seat 18 are fixedly connected, specifically, the throttle 41 and the valve seat 18 are press-fitted with interference, i.e., interference fit between the outer wall of the insertion portion 43 of the throttle 41 and the inner wall of the valve seat 18.
In this embodiment, the orifice 42 has an aperture of between 0.3mm and 0.6mm and a length of between 0.3mm and 0.4 mm. If the aperture of the orifice 42 is too large, the throttling effect may be affected, and if the length of the orifice 42 is too large, the flow rate may be too small.
The bottom of the supporting seat 17 is provided with a flange surface 31 in an inward protruding mode, the bottom of the valve seat 18 is supported on the flange surface 31, the flange surface 31 is located between the bottom of the valve seat 18 and the end 44 of the throttle 41, and the whole structure is compact.
Further, a filter screen 47 is fixed to the throttle 41, and the filter screen 47 is located between the oil inlet passage 14 and the throttle hole 42. In addition, a ring filter screen 32 is also arranged between the oil outlet channel 13 and the oil outlet 22 in the valve cavity 11. By providing the filter screen 47 and the ring filter screen 32 in the valve chamber 11 at the positions of the oil inlet 23 and the oil outlet 22, impurities in the oil can be filtered, and prevented from entering the valve chamber 11.
Specifically, the pressure-increasing valve is an electromagnetic valve, the pressure-increasing valve further comprises a coil 37, a fixed iron 15 and a movable iron 38, the movable iron 38 is arranged above the fixed iron 15, the fixed iron 15 is fixed, the valve rod 19 passes through the fixed iron 15, the valve rod 19 can move up and down in the fixed iron 15, the upper end of the valve rod 19 is fixedly connected with the movable iron 38, and specifically, the valve rod 19 and the movable iron 38 are assembled in an interference mode. An elastic piece 24 is arranged between the movable iron 38 and the fixed iron 15, one end of the elastic piece 24 is abutted against the movable iron 38, and the other end of the elastic piece 24 is abutted against the fixed iron 15. When the coil 37 is powered on, the moving iron 38 is driven to move downwards, the valve rod 19 is driven to move downwards, the elastic piece 24 is compressed, and when the coil 37 is powered off, the elastic piece 24 pushes the moving iron 38 to move upwards through elastic force, and the valve rod 19 is driven to move upwards.
Specifically, the elastic member 24 may be a spring, but is not limited thereto. In this embodiment, the upper end surface of the fixed iron 15 is provided with a groove 20, a supporting step 21 is provided in the groove 20, an elastic member 24 is accommodated in the groove 20 and is clamped between the supporting step 21 and the moving iron 38, and the elastic member 24 is sleeved on the valve rod 19.
Further, the pressure increasing valve further comprises a magnetism isolating pipe 39, the upper end of the magnetism isolating pipe 39 can be sealed, the lower end of the magnetism isolating pipe 39 is provided with an opening, the inside of the magnetism isolating pipe 39 is provided with a cavity, and the moving iron 38 and the fixed iron 15 are accommodated in the magnetism isolating pipe 39 through the opening at the lower end of the magnetism isolating pipe 39. The coil 37 is disposed outside the magnetism insulator tube 39. The fixed iron 15 is fixedly connected with the magnetism isolating pipe 39, specifically, the outer wall of the fixed iron 15 and the inner wall of the magnetism isolating pipe 39 are fixed through laser welding. The upper end of the supporting seat 17 is fixedly connected with the lower end of the magnetism isolating pipe 39, specifically, the outer wall of the lower end of the magnetism isolating pipe 39 and the inner wall of the upper end of the supporting seat 17 are fixed through laser welding.
When the coil 37 is electrified, the movable iron 38 and the fixed iron 15 are magnetized to generate suction force, and because the fixed iron 15 and the magnetism isolating pipe 39 are fixed by welding and cannot move, the movable iron 38 moves downwards towards the fixed iron 15 due to the attraction of electromagnetic force and overcomes the spring force to compress the spring, and finally the movable iron 38 drives the valve rod 19 to move downwards, the bottom end of the valve rod 19 is tightly attached to the top plate of the valve seat 18 and seals the oil inlet 23, so that the oil inlet channel 14 and the oil outlet channel 13 are blocked and are not communicated, as shown in fig. 1.
When the coil 37 is powered off, the spring pushes the moving iron 38 downwards by using elastic force, and finally the moving iron 38 drives the valve rod 19 to move upwards to open the oil inlet 23, so that the oil inlet channel 14 is communicated with the oil outlet channel 13 through the orifice 42, the second cavity 52, the oil inlet 23, the first cavity 51 and the oil outlet 22 in sequence, brake fluid flows upwards, and a pressurizing function is realized, as shown in fig. 3.
In this embodiment, the valve block 10 may be made of aluminum, the fixed iron 15 and the movable iron 38 may be made of low carbon steel, and the support seat 17, the valve seat 18, and the magnetism insulator 39 may be made of free-cutting stainless steel. The valve stem 19 and the restrictor 41 may be injection molded from plastic.
The throttle hole 42 is arranged in the throttle 41, the throttle 41 is an injection molding piece, the throttle hole 42 of the throttle 41 has low process difficulty and low cost; meanwhile, the supporting seat 17 is free of orifice, so that the shape is simple, the process difficulty is reduced, and the cost is also reduced.
According to the pressure boosting valve provided by the embodiment of the invention, the valve cavity 11, the oil inlet channel 14 and the oil outlet channel 13 which are communicated with the valve cavity 11 are arranged in the valve block 10, the supporting seat 17, the valve seat 18 and the throttle 41 are arranged in the valve cavity 11, the valve seat 18 is provided with the oil inlet 23 which is communicated with the oil inlet channel 14 and the inside of the supporting seat 17 in a penetrating manner, the supporting seat 17 is provided with the oil outlet 22 which is communicated with the oil outlet channel 13 and the inside of the supporting seat 17 in a penetrating manner, the throttle 41 is arranged below the valve seat 18, and the throttle 41 is provided with the throttle hole 42 in a penetrating manner along the axial direction. The pressurizing valve can make the oil inlet passage 14 communicate with the oil outlet passage 13 or be blocked from communicating by the up-and-down movement of the valve stem 19. The whole structure of the booster valve is simpler, and unlike the conventional design that the throttle hole is arranged in the supporting seat, the supporting seat does not contain the throttle hole, the throttle hole is arranged on the throttle, and the throttle can be an injection molding piece, so that the process difficulty is lower and the cost is lower.
The present invention is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.

Claims (15)

1. The pressure boosting valve comprises a valve block, wherein a valve cavity, an oil inlet channel and an oil outlet channel are arranged in the valve block, and the oil inlet channel and the oil outlet channel are communicated with the valve cavity; the pressure increasing valve further comprises a valve rod arranged above the valve seat, and the valve rod can move up and down to open the oil inlet or seal the oil inlet; when the valve rod moves downwards, the oil inlet is sealed, so that the oil inlet channel is not communicated with the oil outlet channel; and when the valve rod moves upwards, the oil inlet is opened, so that the oil inlet channel is communicated with the oil outlet channel through the throttle hole, the oil inlet and the oil outlet in sequence.
2. The booster valve of claim 1 wherein said support base is hollow and annular and is funnel-shaped with a wide upper portion and a narrow lower portion, said oil outlet extending through a sidewall of said support base, a first cavity being formed in an interior of said support base, said valve stem extending into said first cavity.
3. The booster valve of claim 2 wherein the upper end of the support seat has an inner diameter greater than the lower end of the support seat, a stepped portion being formed between the upper end of the support seat and the lower end of the support seat, the oil outlet being disposed through a sidewall of the upper end of the support seat, the oil outlet being located above the stepped portion.
4. A supercharging valve according to claim 3, wherein a lip-shaped ring is provided in the valve chamber outside the support seat, said lip-shaped ring being located below the step and being sandwiched between the inner wall of the valve chamber and the outer wall of the support seat.
5. The booster valve of claim 2 wherein said valve seat is of inverted cylindrical shape, said oil inlet extending through a central location of a top plate of said valve seat, said interior of said valve seat defining a second cavity, said restrictor extending into said second cavity.
6. The booster valve of claim 5 wherein said restrictor comprises an insert portion and an end portion, said end portion having a diameter greater than the diameter of said insert portion, said insert portion being inserted into said second cavity from the bottom end of said valve seat and fixedly connected to said valve seat, said end portion being located outside of said valve seat, said orifice being axially disposed within said insert portion or within said end portion; when the valve rod moves upwards to open the oil inlet, the oil inlet channel is communicated with the oil outlet channel sequentially through the throttle hole, the second cavity, the oil inlet, the first cavity and the oil outlet.
7. The booster valve of claim 6 wherein said oil inlet and said orifice are aligned vertically and said oil inlet passage is located directly below said orifice.
8. The booster valve of claim 6 wherein the bottom of said support seat is inwardly projecting with a flange surface on which the bottom of said valve seat is supported, said flange surface being located between the bottom of said valve seat and said end.
9. The booster valve of claim 6 wherein said outer wall of said valve seat is in an interference fit with said inner wall of said lower end of said support seat and said outer wall of said insert is in an interference fit with said inner wall of said valve seat.
10. The booster valve of claim 6 wherein said restrictor is an injection molded piece of plastic.
11. The booster valve of claim 6 wherein said restrictor further has a filter secured thereto, said filter being positioned between said inlet passage and said orifice, and a ring filter being positioned within said valve chamber between said outlet passage and said outlet.
12. The pressure-increasing valve according to any one of claims 1 to 11, wherein the pressure-increasing valve is a solenoid valve, the pressure-increasing valve further comprises a coil, a fixed iron and a movable iron, the movable iron is arranged above the fixed iron, the fixed iron is fixed, the valve rod passes through the fixed iron, the valve rod can move up and down in the fixed iron, the upper end of the valve rod is fixedly connected with the movable iron, an elastic piece is arranged between the movable iron and the fixed iron, the coil is powered on to drive the movable iron to move downwards to drive the valve rod to move downwards and compress the elastic piece, and the elastic piece is powered off to drive the movable iron to move upwards and drive the valve rod to move upwards by elastic force.
13. The booster valve of claim 12 wherein said fixed iron has a recess in its upper end surface, a support step is provided in said recess, said elastic member is received in said recess and sandwiched between said support step and said movable iron, and said elastic member is sleeved on said valve stem.
14. The booster valve of claim 13 further comprising a magnetism isolating tube, wherein the magnetism isolating tube is hollow, the fixed iron and the moving iron are contained in the magnetism isolating tube, the fixed iron is fixedly connected with the magnetism isolating tube, and the upper end of the supporting seat is fixedly connected with the lower end of the magnetism isolating tube.
15. The booster valve of claim 14 wherein the outer wall of the lower end of said magnetic separator tube and the inner wall of the upper end of said support seat are secured by welding.
CN202210632236.1A 2022-06-07 2022-06-07 Pressure increasing valve Pending CN116518085A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210632236.1A CN116518085A (en) 2022-06-07 2022-06-07 Pressure increasing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210632236.1A CN116518085A (en) 2022-06-07 2022-06-07 Pressure increasing valve

Publications (1)

Publication Number Publication Date
CN116518085A true CN116518085A (en) 2023-08-01

Family

ID=87401724

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210632236.1A Pending CN116518085A (en) 2022-06-07 2022-06-07 Pressure increasing valve

Country Status (1)

Country Link
CN (1) CN116518085A (en)

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