KR101509345B1 - Terminal of actuator for Variable Charge Motion System of engine - Google Patents

Terminal of actuator for Variable Charge Motion System of engine Download PDF

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Publication number
KR101509345B1
KR101509345B1 KR20130130000A KR20130130000A KR101509345B1 KR 101509345 B1 KR101509345 B1 KR 101509345B1 KR 20130130000 A KR20130130000 A KR 20130130000A KR 20130130000 A KR20130130000 A KR 20130130000A KR 101509345 B1 KR101509345 B1 KR 101509345B1
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KR
South Korea
Prior art keywords
side terminal
motor
circuit board
contact
terminal
Prior art date
Application number
KR20130130000A
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Korean (ko)
Inventor
김명진
Original Assignee
주식회사 현대케피코
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Publication date
Application filed by 주식회사 현대케피코 filed Critical 주식회사 현대케피코
Priority to KR20130130000A priority Critical patent/KR101509345B1/en
Application granted granted Critical
Publication of KR101509345B1 publication Critical patent/KR101509345B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0294—Actuators or controllers therefor; Diagnosis; Calibration
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets

Abstract

A motor-side terminal is formed in the shape of an arrowhead comprising a body portion, an insertion portion, and a latching jaw. The circuit-board-side terminal is in line contact with the body portion, The contact area and the coupling strength are increased, thereby improving the operational stability and reliability of the VCM motor.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an actuator for a variable intake flow apparatus of an engine,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a terminal of an actuator for a variable intake flow apparatus of an engine, and more particularly to a terminal of an actuator for a variable intake flow apparatus of an engine, .

The engine is a prime mover of an automobile which moves the cylinder up and down by rapidly supplying fuel and outside air to the inside of the cylinder, and converting the cylinder into rotational motion through the connecting rod and the crankshaft.

Depending on the state of combustion of the fuel, the results of factors related to engine performance such as fuel consumption, output, and emission of harmful exhaust gases vary greatly.

In order to improve the engine performance, it is desirable that the fuel is completely combusted as much as possible. For this purpose, much research has been made on the flow of the intake air flowing into the cylinder, and as a result, a variable intake flow apparatus has been developed and used.

The variable intake flow device refers to a VCM (Variable Charge Motion) device, which generates a swirl and tumble flow in the intake air flowing into the engine, thereby improving the mixing performance between the fuel and the air, thereby improving the combustion performance of the fuel.

Prior art related to the VCM device is disclosed in Korean Patent No. 10-0831582 as a tumble control valve assembly. As shown in FIG. 1, the tumble control valve assembly includes an intake manifold 10 having a plurality of runners 11, 12, 13, and 14 connected to respective cylinders of a cylinder and serving as a valve housing, A tumble control valve 11 mounted on the intake manifold 10 for selectively opening and closing air passages 11a, 11b, 11c and 11d of the runners 11, 12, 13 and 14, (20).

The tumble control valve 20 includes a valve shaft 21 provided in a straight line across the intake manifold 10 and a valve shaft 21 extending from the ECU 31 according to the engine speed and the opening amount signal of the accelerator pedal. A valve motor 23 coupled to the valve shaft 21 so as to be able to transmit power to the valve shaft 21 while being driven by a control signal, And a plurality of valve plates 25 for selectively opening and closing the air passageways 11a, 11b and 11c of the intake valves 11, 12, 13 and 14. (The valve motor 23 is a VCM motor, 25) is the VCM valve.)

Therefore, when the valve motor 23 is driven by the control signal of the ECU 31 according to the engine speed and the opening amount signal of the accelerator pedal, the valve shaft 21 and the valve plate 25 are rotated together, 11b, 11c, and 11d of the runners 11, 12, 13, and 14 provided in the intake valve 10 are opened and closed by the valve plate 25, And is supplied to the combustion chamber 32 while having a tumble shape.

1, the VCM motor (hereinafter, referred to as a VCM motor) is a direct-current motor. However, in reality, the VCM motor 23, A circuit board 42 which receives the control signal of the ECU 31 and controls the operation and current supply of the VCM motor 23 and a circuit board 42 which surrounds the circuit board 42, And a housing 40. The motor housing and the circuit board housing 40 are coupled to each other. That is, the VCM motor 23 and the circuit board 42 are installed in the housing.

The motor side terminal 27 and the circuit board side terminal 44 provided in the VCM motor 23 and the circuit board 42 are electrically connected to each other within the housing.

3, the motor-side terminal 27 is in the form of a simple flat plate, and the circuit board side terminal 44 has a connection surface 44a which is roundly protruded in a shape symmetrical to the inner surface of the mutually opposing connection pieces 44a 44b are formed so as to protrude therefrom, and an insertion port 44c is formed between the both side connection surfaces 44b.

Therefore, when the motor side terminal 27 is inserted into the insertion port 44c of the circuit board side terminal 44, both side connecting surfaces 44b of the circuit board side terminal 44 are brought into close contact with the both side surfaces of the motor side terminal 27 So that electrical connection can be made.

However, in the conventional terminal connection structure as described above, the motor side terminal 27 is a simple flat plate, and the connecting surface 44b of the circuit board side terminal 44 connected thereto is curved, The contact area is very small, and the slip between the two members is structurally easy to generate, which is susceptible to vibration and shock, and thus there is a risk of mutual separation.

The VCM motor 23 is not operated or the normal operation control is not performed. As a result, the desired tumble flow can not be formed in the intake air, so that the fuel combustion performance of the engine There was a problem that it was deteriorated.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a VCM motor in which the contact area and the coupling force between the VCM motor side terminal and the circuit board side terminal are increased to prevent contact failure, And to provide a terminal of an actuator for a variable intake flow apparatus of an engine.

According to an aspect of the present invention, there is provided a VCM motor comprising: a motor side terminal protruding from a lower surface of a VCM motor provided in a motor housing and formed in an arrowhead shape; a motor connected to a circuit board mounted on a circuit board housing, And a circuit board side terminal that is in line contact or face contact with the motor side terminal formed in an arrowhead shape.

Wherein the motor-side terminal and the circuit board-side terminal are formed in a flat plate shape, the motor-side terminal includes a rectangular-shaped body portion, an inverted triangular-shaped insertion portion extending in the body portion, , The circuit board side terminal includes both side support pieces, a coupling protrusion protruding from the inner side surface of the both side support pieces, and an insertion hole formed between the both side coupling protrusions.

When the inserting portion of the motor-side terminal is completely inserted into the inserting portion of the circuit board side terminal, both side surfaces of the body portion of the motor side terminal are in line contact with the inner side surfaces of the circuit board side terminal-

When the inserting portion of the motor-side terminal is completely inserted into the inserting portion of the circuit board side terminal, the engaging jaw of the motor-side terminal is caught by the lower surface of the circuit board side terminal-

The top edges of both side staking hole portions of the circuit board side terminal are rounded rounded.

Wherein the motor-side terminal includes a cylindrical body portion, a conical insertion portion extending from the body portion, and a latching jaw at an upper end of the insertion portion, wherein the circuit board-side terminal is formed in a cylindrical shape, A slit is formed to form a plurality of support pieces, a protrusion protruding inward from the cylinder is formed at the upper end of each support piece, an end portion of the protrusion is bent and extended downward to form a contact portion, and an insertion port is formed between the contact portions.

When the inserting portion of the motor side terminal is completely inserted into the inserting portion of the circuit board side terminal, the outer circumferential surface of the body portion of the motor side terminal and the inner circumferential surface of the circuit board side terminal contacting portion mutually contact each other.

The inner circumferential surface of the contact portion of the circuit board side terminal is formed as a circumferential surface.

When the inserting portion of the motor side terminal is completely inserted into the inserting portion of the circuit board side terminal, the engaging jaw of the motor side terminal is caught by the lower end of the circuit board side terminal contacting portion.

The connecting edge of the projecting portion of the circuit board side terminal and the contact portion is rounded rounded.

According to the present invention as described above, when the motor-side terminal is formed into an arrowhead shape and the motor-side terminal is inserted into the circuit board-side terminal, the motor-side terminal and the circuit- The contact area is increased compared to the contact form.

Further, the engaging jaw portion of the arrowhead shape of the motor side terminal is caught by the circuit board side terminal and is prevented from being separated, so that the strength between the terminals is improved.

As described above, the coupling strength is improved and the contact area is increased, so that the VCM motor can be reliably operated, and the tumble formation of the intake flow is stably performed, thereby improving the fuel combustion performance.

Therefore, the output of the engine is improved, the fuel consumption is reduced, and the content of the harmful components in the exhaust gas is reduced.

1 is an installation view of a variable intake flow device.
2 is a schematic structural view of a variable intake flow actuator.
3 is a state before coupling of an actuator terminal according to the prior art;
4 is a schematic block diagram of an actuator to which an embodiment of the present invention is applied;
5 is a state before coupling of an actuator terminal according to an embodiment of the present invention.
Fig. 6 is a correspondence diagram of Fig. 5, also showing the engagement state of the actuator terminals; Fig.
7 is a schematic structural view of an actuator to which another embodiment of the present invention is applied;
8 is a state before coupling of an actuator terminal according to another embodiment of the present invention.
9 is a cross-sectional view taken along line AA of Fig.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The thicknesses of the lines and the sizes of the components shown in the accompanying drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the precedent. Therefore, definitions of these terms should be made based on the contents throughout this specification.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

4 to 6 show a first embodiment of the present invention, and Figs. 7 to 9 show a second embodiment of the present invention.

A common point between the first embodiment and the second embodiment is that the motor side terminal has an arrowhead shape, and the circuit board side terminal is linearly or face-contacted with a portion of the arrowhead- The bonding force between the motor side terminal and the circuit board side terminal is improved and the contact area is increased.

First, a first embodiment of the present invention will be described with reference to Figs. 4 to 6. Fig.

In Fig. 4, the motor housing surrounding the VCM motor 100 is not shown.

As shown in the figure, the VCM motor 100 is a DC motor, and has two terminals (motor-side terminal 110) protruding outward on the lower surface of the body.

The circuit board 220 is mounted on the circuit board housing 200 and has a terminal (circuit board side terminal 240) of the same number for connecting to the motor side terminal 110 at the end.

The motor side terminal 110 is connected to the stator coil inside the VCM motor 100 and the circuit board side terminal 240 is connected to the circuit board 220 for supply current control. A connection portion 244 for connection with the circuit board 220 is formed at the lower end of the circuit board side terminal 240. (Figures 5 and 6 are front views and the connection portion 244 is not shown.)

The motor side terminal 110 and the circuit board side terminal 240 are flat plate parts having the same thickness.

5, the motor-side terminal 110 includes a body portion 111 having a rectangular shape and an inserting portion 112 having an inverted triangular shape extending from the lower end of the body portion 111. As shown in FIG.

Both sides of the inserting portion 112 are formed as inclined surfaces having a sharp bottom and widening toward the upper side so that they can be easily inserted into the insertion port 243 of the circuit board side terminal 240, 111 so as to be inserted into the circuit board side terminal 240 and serve as the latching jaws 113. [

The circuit board side terminal 240 includes a pair of side support pieces 241 connected at the lower ends thereof, a coupling protrusion 242 protruding from the mutually facing surfaces of the side support pieces 241, And is formed into a shape including an insertion port 243.

The width of the support pieces 241 excluding the coupling protrusions 242 is wider than the maximum width of the insertion portion 112 (width of the engagement protrusion 113), so that the motor- (240).

A connecting portion 244 (see FIG. 4) for bending and extending from the lower end portion connecting the both side support pieces 241 to the circuit board 220 is formed.

The supporting pieces 241 are resilient so that when the inserting portion 112 of the motor side terminal 110 is inserted into the inserting portion 243 by the inserting opening 243, The width of the insertion portion 112 is shown exaggerated relative to the width of the insertion port 243 in order to clarify the shape.

The side surface of the coupling protrusion 242 is a vertical surface corresponding to both side surfaces of the body portion 111 and the lower surface of the coupling protrusion 242 is an upper surface of the insertion portion 112 And the latching jaw 113, as shown in Fig.

The upper edge (the side of the insertion port 243 side) of the engaging protrusion 242 is rounded or curved to have a shape narrower toward the insertion port 243 from the outer side on both sides in a wider range as shown by the dotted line .

The two terminals are connected to each other in the structure as shown in FIG.

The motor side terminal 110 is lowered and the motor side terminal 110 and the circuit board side terminal 240 are coupled when the insertion portion 112 passes through the insertion port 243. [

When the insertion portion 112 passes through the insertion port 243, the both side support pieces 241 are elastically deformed to both sides and are restored to their original positions. When the insertion portions 112 are restored to their original positions, As shown in Fig.

The engaging protrusion 113 of the motor side terminal 110 is engaged with the lower surface of the engaging protrusion 242 of the circuit board side terminal 240 so that the motor side terminal 110 does not come off the circuit board side terminal 240 do.

When the motor side terminal 110 enters the inside of the circuit board side terminal 240, the insertion portion 112 is formed into an arrowhead shape, that is, an inverted triangle shape, and the upper entrance edge of the insertion hole 243 is rounded Side terminal 110 can be guided by a curved surface that is narrowed from the outside to the inside. Therefore, the motor side terminal 110 and the circuit board side terminal 240 can be easily joined.

Since the inner side surface of the coupling protrusion 242 is in close contact with the side surface of the body portion 111 when the coupling is performed as described above, a line contact is established between the motor side terminal 110 and the circuit board side terminal 240 But is differentiated from the surface contact of the second embodiment to be described later. However, if the thickness of the terminal is further increased In this case, you can also express it by surface contact.)

The contact area between the motor side terminal 110 and the circuit board side terminal 240 is significantly larger than that of the prior art because there is a contact between the engagement protrusion 113 and the lower surface of the coupling protrusion 242.

The coupling strength between the motor side terminal 110 and the circuit board side terminal 240 is improved by the engaging action of the lower surface of the engaging protrusion 113 and the engaging protrusion 242 to prevent mutual separation.

Since the body portion 111 and the engagement protrusion 113 are both in contact with the inner and lower surfaces of the coupling protrusion 242, the motor-side terminal 110 is moved in the left- So that the contact stability of the coupled state is improved.

As described above, the bonding strength between the motor side terminal 110 and the circuit board side terminal 240 is improved, the contact area is increased, and the stability of the contact state is improved, thereby preventing the occurrence of contact failure. The operational stability and reliability are improved.

Accordingly, the intake flow can be tumbled, thereby improving the fuel consumption and output of the engine and reducing the generation of harmful exhaust gas.

A second embodiment of the present invention will now be described with reference to Figs.

In the second embodiment, the line contact form of the first embodiment is extended in a surface contact manner. The motor-side terminal 120 is formed in a cylindrical shape and a conical shape, and the circuit board side terminal 250 is formed into a corresponding cylindrical shape do.

Other configurations of the actuators except for the two terminals are the same as those of the first embodiment. 7, the motor housing surrounding the VCM motor 100 is not shown, and the circuit board 220 is mounted on the circuit board housing 200. [

Two motor side terminals 120 protrude from the lower surface of the body of the VCM motor 100 and are connected to one end of the circuit board 220 at positions corresponding to the motor side terminals 120, (250). A connection portion 253 is bent and extended at a lower end of the circuit board side terminal 250 and the connection portion 253 is electrically connected to the circuit board 220.

8, the motor-side terminal 120 includes a cylindrical body portion 121 and a conical insertion portion 122 extending from the lower end of the body portion 121. 8, the illustration of the connection portion 253 is omitted.)

The inserting portion 122 has a shape of a bottom with a sharp top and an extended width at the top, and a horizontal plane at the top acts as a latching jaw 123 for the circuit board side terminal 250.

The circuit board side terminal 250 is basically formed into a cylindrical shape, and a plurality of (three to four) slits 251 cut downward from the upper portion of the cylinder are formed at regular intervals along the circumferential direction, Three formed cases are shown).

The portions of the cylinder divided by the slit 251 become the support pieces 252. [

A protrusion 252a protruding inwardly is formed at an upper end of the support pieces 252 and an end of the protrusion 252a is bent downward to form a contact portion 252b.

Each of the contact portions 252b is rounded in a circumferential surface shape so as to be in close contact with the surface of the body portion 121 of the motor side terminal 120.

An insertion port 254 is formed by the contact portion 252b of each support piece 252. [

Although not shown, it is preferable that the connecting portion of the entrance portion of the insertion port 254, that is, the protrusion 252a and the contact portion 252b, is rounded.

Each of the support pieces 252 can be elastically deformed in a minute amount so that when the insertion portion 122 passes through the insertion opening 254, it is opened radially outward. When the insertion portion 122 passes completely, Return.

The coupling structure of the motor side terminal 120 and the circuit board side terminal 250 will be described with reference to Fig. As described above, the insertion portion 122 of the motor side terminal 120 is completely inserted into the insertion hole 254 of the circuit board side terminal 250, thereby coupling the two side terminals 120 and 250.

In the engaged state, the upper end of the insertion portion 122 of the motor side terminal 120, that is, the engagement protrusion 123 is hooked to the lower end of the contact portion 252b of the circuit board side terminal 250, The motor side terminal 120 is prevented from being separated. That is, the terminal bonding strength is improved.

The outer circumferential surface of the body portion 121 of the motor side terminal 120 and the inner circumferential surface of the contact portion 252b of the circuit board side terminal 250 are in close contact with each other. That is, a surface contact is made such that an entire portion of the outer circumferential surface of the body portion 121 excluding the portion corresponding to the slit 251 contacts the contact portion 252b. The contact between the both side terminals 120 and 250 is also made at the lower end surface of the engagement protrusion 123 and the contact portion 252b.

The contact area between the motor side terminal 120 and the circuit board side terminal 250 is greatly increased by the surface contact.

As described above, since the contact portion 252b entirely surrounds the outer periphery of the body portion 121 and the engagement protrusion 123 is caught at the lower end of the contact portion 252b, The connection stability between the motor side terminal 120 and the circuit board side terminal 250 can be greatly improved because the motor side terminal 120 can not behave in the radial direction and the front face rotational direction in the plan view.

As described above, since the bonding strength between the two side terminals 120 and 250 is improved, the contact area is increased, and the contact stability is improved, the contact failure between the terminals is prevented and the operation stability and reliability of the VCM motor are improved, The tumble formation of the fuel is smooth and the complete burning rate of the fuel is improved, so that the fuel consumption and the output of the engine are improved and the generation of the harmful exhaust gas is reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is understandable. Accordingly, the true scope of the present invention should be determined by the following claims.

100: VCM motor 110, 120: Motor side terminal
111, 121: Body part 112, 122:
113,123: latch jaw 200: circuit board housing
220: circuit board 240, 250: circuit board side terminal
241: Support piece 242:
243: insertion port 244:
251: slit 252:
252a: protrusion 252b:
253: connecting portion 254:

Claims (10)

A motor side terminal protruding from the lower surface of the VCM motor provided in the motor housing and formed in an arrowhead shape;
And a circuit board side terminal connected to a circuit board mounted on the circuit board housing to be coupled to the motor housing, the circuit board side terminal being in line contact or surface contact with the motor side terminal formed in the shape of the arrowhead,
Wherein the motor-side terminal includes a cylindrical body portion, a conical insertion portion extending from the body portion, and an engagement protrusion at an upper end of the insertion portion,
The circuit board side terminal is formed in a cylindrical shape, and slits are formed at regular intervals in the cylinder to form a plurality of supporting pieces. A projecting portion protruding inwardly of the cylinder is formed at the upper end of each supporting piece. Wherein a contact portion is formed so as to extend, and an insertion hole is formed between the respective contact portions. delete delete delete delete delete The method according to claim 1,
Side terminal contact portion of the motor-side terminal and the inner circumferential surface of the terminal-side terminal contact portion of the circuit-board-side terminal contact each other when the inserting portion of the motor-side terminal is completely inserted into the inserting portion of the circuit- Terminals of actuators for devices. The method of claim 7,
And the inner circumferential surface of the contact portion of the circuit board side terminal is formed as a circumferential surface. The method according to claim 1,
Side terminal contact portion of the motor-side terminal is engaged with the lower end of the terminal-side terminal contact portion of the motor-side terminal when the insertion portion of the motor-side terminal is completely inserted into the insertion hole of the circuit board side terminal. Of the terminal. The method according to claim 1,
And a connection edge of the protrusion and the contact portion of the circuit board side terminal is rounded rounded.
KR20130130000A 2013-10-30 2013-10-30 Terminal of actuator for Variable Charge Motion System of engine KR101509345B1 (en)

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KR20130130000A KR101509345B1 (en) 2013-10-30 2013-10-30 Terminal of actuator for Variable Charge Motion System of engine

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KR20130130000A KR101509345B1 (en) 2013-10-30 2013-10-30 Terminal of actuator for Variable Charge Motion System of engine

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KR101509345B1 true KR101509345B1 (en) 2015-04-07

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63108162U (en) * 1987-01-06 1988-07-12
JPH06325811A (en) * 1993-05-14 1994-11-25 Yazaki Corp Socket type terminal
KR200311645Y1 (en) * 2003-02-12 2003-05-09 고기목 Apparatus for fixing an accumulator of compressor
KR101048757B1 (en) * 2010-02-09 2011-08-16 (주) 디에이치홀딩스 Motor device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63108162U (en) * 1987-01-06 1988-07-12
JPH06325811A (en) * 1993-05-14 1994-11-25 Yazaki Corp Socket type terminal
KR200311645Y1 (en) * 2003-02-12 2003-05-09 고기목 Apparatus for fixing an accumulator of compressor
KR101048757B1 (en) * 2010-02-09 2011-08-16 (주) 디에이치홀딩스 Motor device

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