KR101756795B1 - purge control stepping motor - Google Patents

purge control stepping motor Download PDF

Info

Publication number
KR101756795B1
KR101756795B1 KR1020150177217A KR20150177217A KR101756795B1 KR 101756795 B1 KR101756795 B1 KR 101756795B1 KR 1020150177217 A KR1020150177217 A KR 1020150177217A KR 20150177217 A KR20150177217 A KR 20150177217A KR 101756795 B1 KR101756795 B1 KR 101756795B1
Authority
KR
South Korea
Prior art keywords
valve
nut
coupled
shaft
nut shaft
Prior art date
Application number
KR1020150177217A
Other languages
Korean (ko)
Other versions
KR20170069694A (en
Inventor
이안희
Original Assignee
주식회사 현대케피코
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 주식회사 현대케피코 filed Critical 주식회사 현대케피코
Priority to KR1020150177217A priority Critical patent/KR101756795B1/en
Publication of KR20170069694A publication Critical patent/KR20170069694A/en
Application granted granted Critical
Publication of KR101756795B1 publication Critical patent/KR101756795B1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/24—Structural association with auxiliary mechanical devices
    • 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
    • F16K1/36—Valve members
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Power Engineering (AREA)
  • Evolutionary Computation (AREA)
  • Medical Informatics (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

The present invention relates to a fuzzy control stepping motor configured to move a valve buffer by using an elastic force stored in an auxiliary driving unit without a valve closing control or in a non-operating section, wherein an inlet portion or an outlet portion is provided on both sides of the body portion A housing having a flow path and a flow path partitioning rib formed on an inner peripheral surface of the body portion; A main drive unit fixed inside the housing to prevent the flow path from being blocked, and rotating or rotating the nut shaft by a magnetic force between the coil and the magnet of the stator core; A lead screw coupled to a nut of the nut shaft and translationally moving in accordance with rotation of the nut shaft; A holder part coupled to one end of the nut shaft and having a first fixing groove; And an auxiliary driving unit having a receiving space for receiving the holder and the elastic member and a second fixing groove of the receiving space, wherein one end of the elastic member And the other end of the elastic member is connected to the second fixing groove.

Description

[0001] PURGE CONTROL STEPPING MOTOR [0002]

The present invention relates to a purge-controlled stepping motor, and more particularly to a purge-controlled stepping motor used to suppress atmospheric release of a fuel-evaporated gas in a vehicle.

Generally, the purge control valve used for suppressing the atmospheric release of the fuel evaporation gas from the automobile is provided with a solenoid type magnetic path portion.

The magnetic path portion of the purge control valve is combined with a general valve portion to perform the purge control required according to the capacity of the canister and the displacement of the engine.

According to the prior art, the purge control valve is provided with a separate space in the engine room of the vehicle, and includes a plunger which is moved by the magnetic path portion, a valve seat which is in contact with or not in contact with the end of the plunger, An outlet and an inlet are provided which are coupled in the horizontal direction and through which the evaporation gas flows or flows.

The conventional purge control valve includes a terminal for supplying power to the magnetic path portion and a core having a coil for receiving power from the terminal.

In the case of purge control in the vehicle, the operation of the coil of the core separates the spool from the valve seat to open the valve hole of the valve seat so that the evaporated gas at the inlet is moved toward the outlet, , It shall always be in a state of shielding or valve closing.

If the flow rate is not blocked due to malfunction of the magnetic path portion, the fuzzy control can not be performed due to the leakage of the evaporative gas, or a warning of the vehicle is generated, resulting in a malfunction.

Further, since the direction of the inlet and the direction of the outlet of the conventional purge control valve are perpendicular to each other, the direction of the pipe to be fastened to the purge control valve also has to be aligned with the direction of the inlet or the outlet, The size of the purge control valve is increased according to the inlet and outlet directions, and it is difficult to secure a space for installing the purge control valve in a narrow engine room.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an in-line type in which an inlet portion and an outlet portion of evaporation gas are arranged on the same line, It is possible to minimize the size of the purge control valve and to secure the installation space in the narrow engine room by installing the valve buffer for performing the valve opening or the valve closing by contacting or non-contacting the partition rib, the main driving portion, To provide a fuzzy control stepping motor that can easily maintain pipeline connection and can maintain a shielded state by shutting off the flow rate by moving the valve buffer part by using the elastic force accumulated in the auxiliary drive part without the valve closing control or in the non- do.

According to an aspect of the present invention, there is provided a purge control stepping motor, wherein the inlet portion and the outlet portion are formed along an extending direction in which the both sides of the body portion are opposed to each other and the oil passage and the oil passage partitioning rib are formed on the inner peripheral surface of the body portion A housing formed therein; A main drive unit fixed inside the housing to prevent the flow path from being blocked, and rotating or rotating the nut shaft by a magnetic force between the coil and the magnet of the stator core; A lead screw coupled to a nut of the nut shaft and translationally moving in accordance with rotation of the nut shaft; A holder part coupled to one end of the nut shaft and having a first fixing groove; And an auxiliary driving unit having a receiving space for receiving the holder and the elastic member and a second fixing groove of the receiving space, wherein one end of the elastic member And the other end of the elastic member is connected to the second fixing groove.

Wherein the housing is formed with one body and the other body, and the flow path and the flow path dividing rib are arranged in the circumferential direction of the body part in the one body and the other body part and extend in the longitudinal direction of the body part, And the one body and the other body are fused or joined to each other through engagement projections and engagement grooves of opposite edges of the body.

The housing includes a transition portion which is connected to the one body through the one body and gradually decreases in diameter between the one body and the inlet portion and gradually decreases in height of the passage partitioning rib, And an expansion inner circumferential surface is formed in the outlet portion to gradually increase the hole size from the small diameter portion of the valve seat to the large diameter portion of the outlet portion, .

The main drive unit includes a motor case fixed to the inside of the housing, a plurality of stator cores mounted in the motor case, a permanent magnet disposed in a magnetic field of the stator core, The nut shaft extending in one direction and the other direction of the motor case and integrally formed with the nut at the other end and fixing the holder portion with a connecting pin at one end thereof; And a shaft support portion for supporting the shaft.

The lead screw includes a screw gear that is screwed with the nut, a guide shaft portion that protrudes from one side of the screw gear along a center axis direction of the screw gear and is slidably coupled to an inner space of the nut shaft, And a valve stem portion protruding from the other side of the screw gear along the central axis direction of the screw gear.

The shaft support portion includes a first auxiliary case coupled to one side of the motor case, a first bearing mounted on the first auxiliary case and rotatably supporting a circumferential surface of the nut shaft, And a second bearing mounted on the second case and rotatably supporting an outer circumferential surface of the nut, wherein a surface of the second case is made to pass through the valve shaft portion of the lead screw Through holes are formed.

Wherein the valve shaft portion includes an armature coupled to an end portion of the valve shaft portion, the armature is integrally formed with the boss and is coupled to the end portion of the valve shaft portion in an interference fit manner, And has a large planar surface and a plurality of outer holes formed therein.

The armature includes a valve bumper supported by the disc. The valve bumper includes a fixing protrusion coupled to the outer hole, and a valve protrusion formed corresponding to the shape of the valve seat to perform a valve opening or a valve closing according to contact or non- And a head portion having a vertically downwardly projecting cross section formed integrally on the opposite side of the fixing protrusion.

Wherein the elastic member is one of a spiral spring, a torsion spring, and a spiral spring, and accumulates elastic force while being wound along with rotation of the nut shaft and the holder by the main driving unit, The holder portion and the nut shaft are reversely rotated by the accumulated elastic force, and the lead screw coupled to the nut shaft, the armature coupled to the lead screw, and the valve buffer coupled to the armature are moved , The valve cushion portion is brought into close contact with the valve seat so that the valve closed state is maintained until the valve opening control is performed with respect to the main drive portion.

A fuzzy control stepping motor according to the present invention is provided with an inline type housing in which an inlet portion, a main drive portion and an outlet portion are arranged in a straight line, and the housing is manufactured in a small size so as to have a diameter approximately equal to that of the pipe , It is advantageous that piping connection is easy and the installation space can be relatively small.

The present invention is advantageous in that an automatic shielding function can be performed through an auxiliary driving unit coupled to the main driving unit. Here, the automatic shielding function according to the present invention rotates the nut shaft using the elastic force accumulated in the auxiliary driving unit even when the valve closing control is not performed or the non-operating interval after the elastic force is accumulated in the auxiliary driving unit corresponding to the valve opening operation. The lead screw and the armature are moved in accordance with the rotation of the nut shaft so that the valve cushion coupled to the armature is also moved in the valve closing direction so that the flow cutoff and the valve closing are carried out so that the fuzzy control warning in the vehicle occurs abnormally You can do it.

1 is a perspective view of a purge control stepping motor according to an embodiment of the present invention;
Figs. 2 and 3 are cross-sectional views for explaining the engaging relationship and operating relationship of the purge controlling stepping motor shown in Fig. 1. Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. And is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined by the claims.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprises " and / or "comprising" when used in this specification is taken to specify the presence or absence of one or more other components, steps, operations and / Or add-ons. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In addition, the fuzzy control stepping motor to be described in the present embodiment is a device that plays a role of suppressing the atmospheric release of the fuel evaporative gas in the vehicle by implementing the valve opening or closing by converting the rotational force or the driving force into the linear reciprocating force .

FIG. 1 is a perspective view of a purge control stepping motor according to an embodiment of the present invention, and FIGS. 2 and 3 are cross-sectional views for explaining an engagement relationship and an operation relationship of the purge control stepping motor shown in FIG.

Referring to FIG. 1, the present embodiment provides a housing 100 of an inline structure or a one-figure structure so as to occupy a relatively small installation area or be easily installed in a one-piece pipe.

The housing 100 mounts the components therein to perform valve opening or valve closing for purging control of the evaporative gas of the engine of the vehicle, and an unillustrated terminal or terminal block is provided on the outside of the housing 100 May be provided.

The housing 100 is formed with an inlet portion 110 and an outlet portion 120 along an extending direction in which the body portions 130 are opposed to each other on both sides. The body portion 130 includes one body 131 and the other body 132.

That is, the fuzzy control stepping motor of the present embodiment having the body portion 130 is a motor product having an inline-type valve function, and includes an inlet portion 110 disposed on one side on the same line for the flow of the evaporation gas, And an outlet 120 disposed on the other side.

The diameter of the inlet portion 110 or the outlet portion 120 is about half of the diameter of the body portion 130 and is formed to a size that can be inserted into the inner diameter of the pipe of the vehicle engine room. The diameter of the body portion 130 may be equal to or the same as the outer diameter of the pipe of the vehicle engine room.

Therefore, this embodiment can be easily installed in a small engine room as a smallest product such as a direct connection to a pipe, and also in a small engine room of a narrow internal space.

The one body 131 and the other body 132 are formed into a bottle body shape or a bottleneck shape.

A screw connection part may be further formed on the outer circumferential surface of the end part of the inlet part 110 or the outlet part 120 so as to be connected to a pipeline not shown in the figure so as to perform a ripple type step or equivalent pipe connection.

Referring to FIG. 2, the plurality of flow paths 140 and the flow path dividing ribs 141 are integrally formed on the inner peripheral surface of the body portion 130.

That is, in the housing 100, the flow path 140 and the flow path dividing ribs 141 are arranged in the circumferential direction of the body part 130 in the one body 131 and the other body 132 of the body part 130. At this time, the flow path 140 and the ribs 141 extend in the longitudinal direction of the body portion 130. The one side body 131 and the other side body 132 are configured to be fused or joined to each other through the coupling protrusions and the coupling grooves 133 which face each other.

The housing 100 is connected to one side of the body 131 so that the diameter thereof gradually decreases between the one body 131 and the inlet 110 and the height of the oil passage ribs 141 gradually decreases And further includes a transition section (111). The transition portion 111 may make the flow of the fluid such as the evaporation gas into a streamline shape to increase the flow amount.

The housing 100 further includes a valve seat portion 121 integrally formed between the outlet portion 120 and the other body 132 and having an inner circumferential surface of a vertically lowered light section.

Particularly, in the outlet portion 120, an extended inner peripheral surface 122 is formed in which the hole size is gradually increased from the small diameter portion of the valve seat 121 to the large diameter portion of the outlet portion 120. The expandable inner circumferential surface 122 may exhibit fluid flow characteristics such as an ejector or a venturi tube.

The present embodiment is a component mounted on or coupled to the inside of the housing 100 and includes a main driving unit 200, a lead screw 300, and an auxiliary driving unit 400.

The main drive unit 200 is fixed to the inside of the housing 100 so as to prevent the flow path 140 from being blocked, and rotates or rotates the nut shaft 230 by the magnetic force between the coil of the stator core 210 and the magnet 220 It plays a role.

The main drive unit 200 is an electric operation device that uses a control signal as a power source, such as a step motor, and is a motor device capable of controlling the rotation angle, the number of rotations, or the rotation direction of the nut shaft 230 have. The main driving unit 200 may further include a hall sensor or a rotation angle sensor (not shown) used in the step motor.

The lead screw 300 is coupled to the nut 231 of the nut shaft 230 and is translated to rotate according to the rotation of the nut shaft 230.

The lead screw 300 includes a screw gear 310 screwed to the nut 231 and a screw gear 310 protruding from one side of the screw gear 310 along the central axis direction of the screw gear 310, And a valve shaft 330 protruding from the other side of the screw gear 310 along the central axis direction of the screw gear 310. [

The combination of the lead screw 300 and the nut 231 means a screw connection between a nut block of a ball screw and a screw shaft and converts the rotational force of the nut 231 of the nut shaft 230 into a linear reciprocating force for translational motion .

The auxiliary driving unit 400 includes a receiving space 402 for receiving the holder 500 and the elastic member 600 and a second fixing groove 401 of the receiving space 402.

The second fixing groove 401 may be formed as a hook hole or a latch hole.

The holder unit 500 is coupled to one end of the nut shaft 230 and has a first fixing groove 501. The holder unit 500 is a cap-shaped body that can be fitted to one end of the nut shaft 230, and forms a step between the actual fitting part and the part where the first fixing groove 501 is formed.

The elastic member 600 may be formed of any one of a spiral spring, a torsion spring, and a spiral spring.

The size or elastic modulus of the elastic member 600 can be determined within a range that can rotate the nut shaft 230 and the holder portion 500 or move the valve buffer portion 800 and related components , And may not be limited to a specific value.

The elastic member 600 accumulates the elastic force while being wound along with the rotation of the nut shaft 230 and the holder unit 500 by the main drive unit 200 and performs separate valve closing control for the main drive unit 200 The elastic member 600 releases the elastic member 600 with the accumulated elastic force to rotate the holder unit 500 and the nut shaft 230 in a reverse direction. That is, the elastic member 600 plays a role of accumulating or discharging a part of the rotational force of the nut shaft 230.

The rotational force of the nut shaft 230 through the elastic member 600 is converted into a linear reciprocating force by the lead screw 300 and as a result the lead screw 300 coupled to the nut shaft 230 and the lead screw 300 (Eg, lift or return) the valve cushion 800 coupled to the armature 700 and to move the valve cushion 800 to the valve seat 121 The fuzzy control can be performed quickly by maintaining the valve closed state until the valve opening control for the main driver 200 is performed.

One end of the elastic member 600 is connected to the first fixing groove 501 of the holder unit 500 and the other end of the elastic member 600 is connected to the second fixing groove of the auxiliary driving unit 400. [ (Not shown).

The other end of the elastic member 600 can be coupled to the second fixing groove 401 by adjusting the direction of the coupling, but is formed in a hook shape or a latch shape so as not to be slipped off once it is coupled.

One end of the elastic member 600 may also be formed in an annular or hook shape after being connected to the first fixing groove 501 so as not to fall off.

The main drive unit 200 includes a motor case 240 fixed to the inside of the housing 100, a plurality of stator cores 210 mounted inside the motor case 240, And a permanent magnet 220 disposed within the nut shaft 230 and coupled to an outer circumferential surface of the nut shaft 230.

The nut shaft 230 is integrally formed at one end and the other end of the motor case 240 and has a nut 231 integrally formed at the other end. Respectively. Here, the connection pin 232 is fastened to the pin hole of the nut shaft 230 and the pin hole of the holder part 500.

The main drive part 200 includes a shaft support part 250 for supporting rotation or reverse rotation of the nut shaft 230.

The shaft support part 250 includes a first auxiliary case 251 coupled to one side of the motor case 240 and a second auxiliary case 251 mounted on the first auxiliary case 251 to rotate the circumferential surface of the nut shaft 230 (Not shown). That is, the inner ring of the first bearing 252 is supported on the circumferential surface of the nut shaft 230, and the outer ring of the first bearing 252 is supported by the bearing mounting hole of the first auxiliary case 251.

The first auxiliary case 251 is disposed between the motor case 240 and the auxiliary driving unit 400 and fixed to the motor case 240 and the auxiliary driving unit 400 by a plurality of bolts not shown.

The shaft support part 250 includes a second case 253 coupled to the other side of the motor case 240 and a second case 253 mounted on the second case 253 for rotating the outer circumferential surface of the nut 231, And a bearing 254.

That is, the inner ring of the second bearing 254 is supported on the circumferential surface of the nut 231, and the outer ring of the second bearing 254 is supported on the bearing mounting hole of the second auxiliary case 253.

The first bearing 252 and the second bearing 254 serve to support the entire nut shaft 230 including the nut 231 such that the nut shaft 230 rotates or reversely rotates.

A through hole 255 for passing the valve shaft portion 330 of the lead screw 300 is formed on the surface of the second case 253.

The valve stem 330 includes an armature 700 coupled to an end thereof. The armature 700 includes a boss coupled to an end portion of the valve stem 330 in an interference fit manner, a disk integrally formed with the boss, having a relatively large planar area relative to the boss, Lt; / RTI >

The armature 700 includes a valve buffer 800 formed of rubber, synthetic rubber, and valve synthetic resin supported on the disc. The valve cushion unit 800 includes a fixing protrusion coupled to the outer hole of the armature 700 and a fixing protrusion formed to correspond to the shape of the valve seat unit 121 so as to perform a valve opening or a valve closing operation, And a head portion having a vertically lowered light cross-sectional shape integrally formed on the opposite side of the fixing protrusion.

The operation of the fuzzy control stepping motor of this embodiment will be described with reference to FIGS. 2 and 3. FIG.

2, the main driving unit 200 is applied with a step signal (for example, valve opening control) for stepping motor operation. As a result, as shown in FIG. 3, the purge- It can be in the OPEN state.

The driving force of the main driving unit 200 for opening the valve is much greater than the elastic force of the elastic member 600. The nut shaft 230 and the nut 231 rotate by the number of steps corresponding to the signal application. As a result, as described above, the lead screw 300, which is translationally movable in correspondence with the rotation of the nut 231, is moved in the screwed relationship with the nut 231, and the lead screw 300 is moved by the armature 700 ).

The valve cushion unit 800 connected to the armature 700 is moved and stopped (for example, stroke adjustment) in a direction away from the valve seat unit 121, thereby opening the valve as shown in FIG.

In this process, the elastic member 600 is wound to correspond to the rotation of the nut shaft 230 so that elastic force can be accumulated.

Further, due to the valve opening, a fluid such as a vapor gas can flow.

The present embodiment should always be in a non-operating section (e.g., valve closed) for flow blocking.

In the absence of the elastic member 600 and the holder portion 500 as in the present embodiment, the step signal can be cut off in the event of a vehicle accident, battery charge deterioration, or the like, , Which may lead to leakage of the evaporative gas, fuzzy control failure, vehicle warning, and malfunction.

That is, the driving force of the main driving unit 200 may be relatively small or not more than the elastic force accumulated in the elastic member 600.

Accordingly, in this embodiment, the nut shaft 230 and the nut 231 are rotated reversely by the elastic force accumulated in the elastic member 600, that is, as the elastic member 600 is unwound and released with the accumulated elastic force, And the lead screw 300 is moved in the opposite direction (for example, in the returning direction) by the reverse rotation of the nut 231 in the screwed relationship with the nut 231. The armature 700 is moved by the lead screw 300, (For example, upward movement as shown in FIG. 2 in FIG. 3) in the same direction as that of the lead screw 300.

As a result, the valve cushion portion 800 connected to the armature 700 is brought into close contact with the valve seat portion 121 so that it can be shielded or closed as shown in FIG.

That is, since the return function or the automatic shielding function of the valve cushion unit 800 can be performed without a separate control signal, it is possible to secure the reliability and safety of the leakage cutoff and to prevent the occurrence of a vehicle warning due to malfunction do.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made without departing from the essential characteristics of the present invention. Therefore, the embodiments described in the present invention are not intended to limit the scope of the present invention, but are intended to be illustrative, and the scope of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas which are equivalent or equivalent thereto should be interpreted as being included in the scope of the present invention.

100: housing 110:
120: outlet part 130: body part
200: main drive part 210: stator core
220: Magnet 230: Nut Shaft
231: Nut 300: Lead Screw
400: auxiliary driving part 500: holder part
600: elastic member 700: amateur
800: valve buffer

Claims (9)

A housing in which an inlet portion and an outlet portion are formed along an extending direction in which the body portion and the body portion are opposed to each other, and a flow path and a flow path partitioning rib are formed on an inner peripheral surface of the body portion;
A main drive unit fixed inside the housing to prevent the flow path from being blocked, and rotating or rotating the nut shaft by a magnetic force between the coil and the magnet of the stator core;
A lead screw coupled to a nut of the nut shaft and translationally moving in accordance with rotation of the nut shaft;
A holder part coupled to one end of the nut shaft and having a first fixing groove;
And an auxiliary driving unit having a receiving space for receiving the holder and the elastic member and a second fixing groove of the receiving space,
Wherein one end of the elastic member is connected to the first fixing groove and the other end of the elastic member is connected to the second fixing groove so as to accumulate or discharge part of the rotational force of the nut shaft
In-fuzzy control stepping motor.
The method according to claim 1,
The housing includes:
Wherein the body portion is formed of one body and the other body and the flow path and the flow path dividing rib are arranged in the circumferential direction of the body portion in the one body and the other body portion and extend in the longitudinal direction of the body portion, And is configured to be fusion-bonded or bonded to each other through engagement projections and engagement grooves of opposite edges of the other body
In-fuzzy control stepping motor.
3. The method of claim 2,
The housing includes:
A transition portion which is connected to the one body through the one body and gradually decreases in diameter between the one body and the inlet portion and gradually decreases in height of the passage portion rib,
Further comprising a valve seat portion integrally formed between the outlet portion and the other body,
Wherein the outlet portion is formed with an expanding inner peripheral surface in which the hole size is gradually increased from the small diameter portion of the valve seat to the large diameter portion of the outlet portion
In-fuzzy control stepping motor.
The method of claim 3,
The main drive unit includes:
A motor case fixed to the inside of the housing,
A plurality of stator cores mounted inside the motor case,
A permanent magnet disposed within a magnetic field of the stator core;
The nut shaft being coupled to the permanent magnet and extending in one direction and the other direction of the motor case, integrally forming the nut at the other end, and fixing the holder with the connecting pin at one end,
And a shaft support portion for supporting rotation or reverse rotation of the nut shaft,
In-fuzzy control stepping motor.
5. The method of claim 4,
The leadscrew
A screw gear screwed into the nut,
A guide shaft portion protruding from one side of the screw gear along a central axis direction of the screw gear and slidably coupled to an inner space of the nut shaft,
And a valve stem portion protruding from the other side of the screw gear along the central axis direction of the screw gear
In-fuzzy control stepping motor.
6. The method of claim 5,
The shaft support portion
A first auxiliary case coupled to one side of the motor case,
A first bearing mounted on the first auxiliary case and rotatably supporting a circumferential surface of the nut shaft,
A second case coupled to the other side of the motor case,
And a second bearing mounted on the second case and rotatably supporting an outer circumferential surface of the nut,
And a through hole for passing the valve stem portion of the lead screw is formed on a surface of the second case
In-fuzzy control stepping motor.
The method according to claim 6,
Wherein the valve shaft portion
And an armature coupled to an end of the valve stem,
Wherein the armature includes a boss which is coupled to an end portion of the valve shaft portion in an interference fit manner and a disk integrally formed with the boss and having a relatively large planar area than the boss and having a plurality of outer holes
In-fuzzy control stepping motor.
8. The method of claim 7,
The amateur,
And a valve buffer supported by the disc,
Wherein the valve bumper includes a fixing protrusion that is coupled to the outer hole and a valve body that is formed to correspond to the shape of the valve seat portion and which is integrally formed on the opposite side of the fixing protrusion so as to perform valve opening or valve closing, Including heads
In-fuzzy control stepping motor.
The method according to claim 1,
Wherein the elastic member is one of a spiral spring, a torsion spring, and a spiral spring, and accumulates elastic force while being wound along with rotation of the nut shaft and the holder by the main driving unit, The holder portion and the nut shaft are reversely rotated by the accumulated elastic force, and the lead screw coupled to the nut shaft, the armature coupled to the lead screw, and the valve buffer coupled to the armature are moved , And the valve-closing state is maintained until the valve-opening control for the main drive unit is performed by bringing the valve buffer into close contact with the valve seat
In-fuzzy control stepping motor.
KR1020150177217A 2015-12-11 2015-12-11 purge control stepping motor KR101756795B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150177217A KR101756795B1 (en) 2015-12-11 2015-12-11 purge control stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150177217A KR101756795B1 (en) 2015-12-11 2015-12-11 purge control stepping motor

Publications (2)

Publication Number Publication Date
KR20170069694A KR20170069694A (en) 2017-06-21
KR101756795B1 true KR101756795B1 (en) 2017-07-11

Family

ID=59281801

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150177217A KR101756795B1 (en) 2015-12-11 2015-12-11 purge control stepping motor

Country Status (1)

Country Link
KR (1) KR101756795B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100356943B1 (en) 1997-07-25 2002-10-18 지멘스 오토모티브 인코포레이티드 Regulated linear purge solenoid valve
JP2007240010A (en) 2007-06-28 2007-09-20 Mitsubishi Electric Corp Solenoid valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100356943B1 (en) 1997-07-25 2002-10-18 지멘스 오토모티브 인코포레이티드 Regulated linear purge solenoid valve
JP2007240010A (en) 2007-06-28 2007-09-20 Mitsubishi Electric Corp Solenoid valve

Also Published As

Publication number Publication date
KR20170069694A (en) 2017-06-21

Similar Documents

Publication Publication Date Title
US8973894B2 (en) Solenoid and solenoid valve
KR101165314B1 (en) Electronically operated valve
KR101303536B1 (en) Electric valve
US9470332B2 (en) Solenoid valve
EP2574832B1 (en) Control valve
KR101478777B1 (en) Electric valve and stop device thereof
KR101755875B1 (en) Canister closed valve for car fuel system
EP2853790B1 (en) Control valve
EP2853794B1 (en) Electromagnetic valve
US20120255639A1 (en) Solenoid valve
JP7448580B2 (en) electronic expansion valve
KR20130137640A (en) Control valve
US10591077B2 (en) Control valve and method of manufacturing the same
JP5974239B2 (en) Control valve
JP2016211726A (en) Electric valve
JP7356521B2 (en) Electronic expansion valve and its installation method
EP3783777A1 (en) Motor operated valve
US20050022884A1 (en) Valve
KR101756795B1 (en) purge control stepping motor
US20160265447A1 (en) Valve assembly
US7146729B2 (en) Fuel vapor vent valve and method of attaching same to a tank
JP6722274B2 (en) Motorized valve and refrigeration cycle system
JP7266871B2 (en) electric valve
US11073222B2 (en) Electromagnetic solenoid valve
JP5866599B2 (en) solenoid valve

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant