KR100619269B1 - Door actuator of air-conditioning for vehicle - Google Patents

Abstract

The present invention relates to an automobile air conditioner door actuator for precisely controlling the rotation of a drive motor by simplifying a feedback signal by a contactless method to improve a signal recognition rate.

The automotive air conditioning door actuator includes a lower case, an upper case coupled to an upper portion of the lower case, a terminal seated on an upper portion of the lower case, a drive motor connected to the terminal and supplied with power, and a drive motor. A feedback signal unit for controlling the rotation of the motor, the power transmission unit for transmitting the rotational force of the drive motor to the lever, and the air conditioner door actuator for automobiles formed with a lever to reciprocate by the rotation of the drive motor, the feedback signal unit A light emitting unit for outputting an optical signal, a light receiving unit for receiving an optical signal of the light emitting unit, and a slit formed at one end of the groove by being inserted into the motor shaft of the driving motor are achieved.

Actuator, feedback signal,

Description

Air-conditioning door actuator for automobiles {Door actuator of air-conditioning for vehicle}

1 is a perspective view of a conventional automotive air conditioning door actuator,

Figure 2 is an exploded perspective view of a conventional automotive air conditioning door actuator,

3 is a perspective view of an air conditioning door actuator for a vehicle of the present invention;

Figure 4 is an exploded perspective view of the air conditioning door actuator for a vehicle of the present invention,

5 is a cross-sectional view showing a coupling state of the air conditioner door actuator for an automobile of the present invention;

Figure 6 is a plan sectional view showing a coupled state of the air conditioner door actuator for automobiles of the present invention,

7 is a cross-sectional view showing the assembly structure of the lever of the air conditioner door actuator for automobiles of the present invention;

8a and 8b is a manufacturing process diagram of the lever of the air conditioning door actuator for a vehicle of the present invention,

9 is a cross-sectional view showing a coupling state between a terminal and a driving motor of an air conditioning door actuator for a vehicle according to a first embodiment of the present invention;

10A, 10B, and 10C are functional diagrams illustrating a process of assembling a terminal and a driving motor of the air conditioner door actuator for a vehicle of FIG. 9;

11 is a cross-sectional view showing a feedback signal portion of the air conditioning door actuator for a vehicle of the present invention;

12 is an operation of the feedback signal unit of the air conditioner door actuator for a vehicle of the present invention,

FIG. 13 is a cross-sectional view illustrating a coupling state between a terminal and a driving motor of an air conditioning door actuator for a vehicle according to a second embodiment of the present disclosure; FIG.

14A and 14B are functional diagrams illustrating a process of assembling a terminal and a driving motor of the air conditioner door actuator for a vehicle of FIG. 13.

15A and 15B are functional diagrams illustrating a process of assembling a terminal and a driving motor of an air conditioning door actuator for a vehicle according to a third embodiment of the present invention.

16A and 16B are functional diagrams illustrating a process of assembling a terminal and a driving motor of an air conditioning door actuator for a vehicle according to a fourth embodiment of the present invention.

?? Explanation of symbols for main parts of the drawings

110: lower case, 111: seating portion, 112: wall portion, 112a: inclined surface, 113: fixed hook,

114: cut groove, 115: disassembled groove, 116: through hole, 117: ring rib, 117a: projection,

120: upper case, 121: accommodation space, 122: wall, 123: fastening, 124; through,

125: ring rib, 125a: projection, 130: terminal, 134: bent portion, 136: crimp groove,

140: drive motor, 142: motor shaft, 144: motor terminal, 150: feedback signal portion, 152: slit,

152a: groove, 154: light emitting unit, 156: light receiving unit, 158: protective cover, 160: power transmission unit,

162: worm gear, 164: reduction gear, 166: output gear, 166a: guide groove, 166b: protrusion

166c: fixed hole, 170: lever, 172: hook, 176: through-hole, 178: operation

The present invention relates to an automobile air conditioner door actuator for precisely controlling the rotation of a drive motor by simplifying a feedback signal by a contactless method to improve a signal recognition rate.

In general, the air conditioning system in a vehicle is a general term for a system that maintains comfortably the temperature, humidity, air cleanliness and flow in the cabin, and can be divided into air conditioners and heaters. The frequency of use is high, and the frequency of use of the heater is high in winter.

This air conditioning system has three functions, namely Intake, Mode, and Temp. The intake function selects an operation that introduces outside air into the car interior or circulates the air inside the room, and the mode function vents, floors, or defronts air from the duct of the air conditioning system. It is a function to control the direction of the wind going to the exit, the temp function refers to a function to control the amount of mixing of cold and warm air to enter the air of the desired temperature into the room.

These functions are achieved by adjusting the opening and closing of the duct exit by installing a door at the exit of the duct. In the case of an automatic air conditioning system mounted on a luxury passenger car, a door actuator is installed to automatically open the door by an ECU (Electric Control Unit). It is designed to open and close or adjust the angle.

The door actuator for the intake function only opens or closes the outlet of the duct, whereas the door actuator for the mode and temp function functions to adjust the angle of the door in several steps. It is different from the actuator.

1 and 2 illustrate a door actuator for a conventional mode and temp function such that the door actuator is inserted into the upper and lower cases 10 and 20 and the case 10 and 20 so as to rotate forward and backward according to an external signal. A drive gear 30, a worm gear 41 connected to one end of the drive motor 30, gear reduction gears 42 and 43 engaged with the worm gear 41 to control torque and speed, and the gear reducer 43 ) Is coupled to the output gear 44 driving the door (not shown), the contactor 44a fixed to the output gear 44 to rotate together, and the printed circuit board to which the contactor 44a is in contact. 50).

In addition, the lever 60 is inserted into the central hole 16 so that the lever 60 rotates as the output gear 44 rotates, thereby controlling the discharge direction of the discharged air by adjusting the damper of the discharge port. .

Such an actuator is configured to transmit a feedback signal generated by the driving of the driving motor to a control unit for controlling the wind direction control motor to perform position control of the wind direction. In particular, in the typical control method of the wind direction control motor, a PCB pattern is formed and a contactor is formed on a rotating gear to use contacts and short circuits between the PCB pattern and the contactor, or a carbon clause is formed on the PCB. The feedback voltage by the contact signal of the rotor is fed back to the controller to control the position of the wind direction control motor.

However, in such a conventional method, the contact cannot be secured due to the contact failure of the contactor due to the friction between the PCB pattern and the contactor, and the wear of the carbon resistance forming the PCB pattern at the contact with the contactor. As the signal voltage fed back is different, the control unit cannot control the exact position of the wind direction control motor. In some cases, the motor is damaged due to the overload of the wind direction control motor or the circuit for driving the motor is overheated and damaged.

In addition, in assembling the case, the lower case 20 and the wall of the upper case 10 are in contact with each other, and the hook 22 protruding outward from the wall of the lower case 20 to the lower end of the wall of the upper case 10. Although the fixed fixing member 12 is formed to be fastened and fixed, the case is lifted up at a contact portion between the upper case 10 and the lower case 20, and noise generated therein is leaked out. It is difficult to assemble due to the warpage of the wall portion, there is a problem that the fixing piece fastened to the hook is easily broken.

On the other hand, in order to limit the start position and the end position of the lever for driving the damper by forming a stopper shaft 70 on one side of the case 20 so that the operation between the lever 60 is caught by the stopper shaft 70 Although the rotation is limited, the operation angle of the lever 60 is caught on the upper end of the stopper shaft 70 having the lower end fixed to the case 20, and thus the position angle is reduced as the stopper shaft 70 is shaken. Inaccurate control occurs.

In addition, the lever 60 forms a fixed hook (not shown) at the bottom to be fixed to the output gear, which is manufactured by an expensive slide mold, which increases the manufacturing cost, and is not fixed by the elastic force. Since it is assembled by fitting, there is a problem that the hook portion is broken in the assembly process.

In addition, the method of fixing the terminal or electric wire to the motor terminal for supplying power to the driving motor was dependent on the manual work using soldering, but the workplace was polluted by the harmful substances emitted during the work with the productivity decrease due to the use of lead. do.

The present invention has been made in order to solve the above problems, by allowing the feedback signal according to the rotation of the drive motor can be generated by a contactless method, the air conditioner door for automobiles to precisely control the position of the drive motor The purpose is to provide an actuator.

In addition, an object of the present invention is to provide an air conditioner door actuator for a vehicle which prevents an error from being damaged by an external shock or a pollutant by surrounding a feedback signal generating unit by a non-contact type with a protective cover.

The air conditioner door actuator of the present invention comprises a worm gear and a slit fixed to the motor shaft of the drive motor integrally inserted into the motor shaft of the drive motor to generate a feedback signal uniformly, reducing the labor required for assembly It is an object to provide an air conditioning door actuator for a vehicle.

An air conditioner door actuator for automobiles has an object to provide an air conditioner door actuator for automobiles with precise control of the angle of the lever by forming a stopper inside the actuator to limit the rotation angle of the lever.

The present invention is intended to provide an air conditioner door actuator for a vehicle to reduce the mold maneuvering and mold cost by being produced in a general mold by removing from the slide mold method when manufacturing the lever.

The air conditioner door actuator for automobiles of the present invention does not use soldering by fixing power supply terminals and motor terminals of the driving motors by physical forces such as bending or caulking to prevent heavy metal contamination, and by an automated process. The aim is to provide automotive air-conditioning door actuators which can be produced and thus improved in productivity.

According to the present invention, an air conditioner door actuator for a vehicle provides an air conditioner door actuator for a vehicle in which the upper case is firmly assembled with a lower case so that internal noise does not leak, and the deformation of the case wall part is prevented and the fixing part is prevented from being damaged. There is a purpose.

According to an aspect of the present invention, there is provided an air conditioner door actuator for a vehicle including a lower case, an upper case coupled to an upper portion of the lower case, a terminal seated on an upper portion of the lower case, and a power source connected to the terminal. The drive motor supplied, the feedback signal unit for checking the rotational amount of the drive motor to correct the error, the power transmission unit for transmitting the rotational force of the drive motor to the lever, and the lever reciprocating by the rotation of the drive motor. In the formed automotive air conditioner door actuator, the feedback signal portion is formed on the light emitting portion for outputting the optical signal, the light receiving portion for receiving the optical signal of the light emitting portion, and one groove at the tip to be inserted into the motor shaft of the drive motor. It is achieved by providing a vehicle air conditioning door actuator, characterized in that consisting of a slit.

Preferably, the feedback signal unit of the air conditioner door actuator for a vehicle further includes a protective cover surrounding the outside.

Preferably, the power transmission unit of the air conditioner door actuator for a vehicle includes a worm gear inserted into a motor shaft of a drive motor, an output gear for driving a lever, and a reduction gear disposed between the worm gear and the output gear.

Preferably, the slit and worm gear inserted into the motor shaft of the air conditioner door actuator for automobiles are integrally formed.

The lower case and the upper case of the air-conditioning door actuator for automobiles of the present invention each have a ring-shaped rib formed with a protrusion on one side thereof, and the output gear of the power transmission unit has a protruding piece formed therein so that the ring-shaped rib is accommodated. It is preferable to form a guide groove.

Preferably, the lever of the air conditioner door actuator for a vehicle of the present invention protrudes from both sides of the lower end, and a groove is formed between the hooks.

Preferably, the lower case of the air conditioner door actuator for a vehicle of the present invention forms an inclined surface at an outer edge of the wall portion, and the upper case is assembled such that the wall portion surrounds the outer wall portion of the lower case.

The lower case of the air conditioner door actuator for a vehicle of the present invention forms a plurality of hooks on the outer side of the wall portion and forms cutout grooves on both sides of the hooks, and the upper case forms a fastening hole to be hooked to the hook on the wall. It is desirable to.

The lower case of the air conditioner door actuator for automobiles of the present invention is preferably to form an exploded groove at the bottom of the wall portion in which the hook is located.

The terminal of the air conditioner door actuator for a vehicle of the present invention forms a gripping groove at a rear end thereof, and the motor terminal is bent in the bending part as the gripping groove is bent in a state where the motor terminal of the driving motor is inserted into the gripping groove. It is preferable to be fixed.

The terminal of the air conditioner door actuator for automobiles of the present invention is preferably formed by crimping the gripping groove and the motor terminal by bending the gripping groove to which the motor terminal of the driving motor is fixed by bending.

The terminal of the air-conditioning door actuator for automobiles of the present invention is formed by cutting the fixing piece from the plate surface at the rear end and protruding, and the fixing piece is formed by caulking in the state in which the motor terminal of the driving motor is inserted between the plate surface and the fixing piece. And the motor terminal is preferably compressed.

In the present invention, a rivet is formed in the terminal of the air conditioner door actuator for a vehicle, and a rivet insertion groove is formed in the motor terminal of the driving motor. After the rivet is inserted into the rivet insertion groove, the rivet is riveted and then the motor terminal is compressed. Is preferably fixed to the terminal.

The terminal of the air conditioner door actuator for automobiles according to the present invention has a caulking portion formed of a bent portion and a plate portion of the bent portion cut into a sawtooth shape in a '┗┛' shape, and the terminal has the motor terminal at the bent portion. After seating, it is preferable to press the tooth part in a direction surrounding the terminal to fix the motor terminal to the terminal.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the air conditioning door actuator for a vehicle of the present invention will be described in detail.

3 is a perspective view of an air conditioner door actuator for an automobile of the present invention, and FIG. 4 is an exploded perspective view of the air conditioner door actuator for an automobile of the present invention.

As shown in the drawings, the air conditioner door actuator for an automobile of the present invention may include a lower case 110, an upper case 120 coupled to an upper portion of the lower case 110, and a lower case 120. A feedback signal unit 150 generating a feedback signal to control a terminal 130 mounted on an upper portion, a driving motor 140 connected to the terminal 130 to receive power, and a rotation amount of the driving motor 140. ), A power transmission unit 160 which transmits the rotational force of the drive motor 140 to the lever 170, and a lever 170 which rotates reciprocally by the rotation of the drive motor 140.

The lower case 110 has a seating portion 111 on which each component is seated on an upper surface, a fixed hook 113 formed on the outer wall 112, and cuts formed on both sides of the fixed hook 113, respectively. The groove 114, the disassembly groove 115 formed for release from the outside of the fixing hook 113, the inclined surface 112a formed on the outside of the upper end of the wall portion, the through hole 116 formed on the bottom surface, The protrusion 117a is formed at one side and is formed of a ring-shaped rib 117 formed inside the through hole 116.

The upper case 120 includes an accommodation space 121 for accommodating each component, a wall portion 122 formed along an outer circumferential surface of the lower case 110 to surround the lower portion of the wall of the lower case, and a lower portion of the lower case 110. The fastening hole 123 is fastened to the fixing hook 113, the through hole 124 formed on the upper surface, and the projection (125a) formed on one side is formed of a ring-shaped rib 125 formed inside the through hole 124. .

The terminal 130 inputs and outputs power and signals, and is seated on the seating portion 111 of the lower case 110, and the tip is exposed to the outside and connected to a plug (not shown). Form.

The gripping groove 132 is bent by a separate tool or equipment in the state in which the motor terminal 144 is inserted to form a bent portion 134, and the crimp groove 136 by dot compression to the bent portion 134. ) Is formed and the bent portion 134 and the motor terminal 144 are compressed.

The drive motor 140 is mounted on the seating portion 111 of the lower case 110 and is connected to the terminal 130, and a DC motor having a motor shaft 142 and a motor terminal 144 is used. .

The feedback signal unit 150 controls the driving motor 140 by checking the rotation amount of the driving motor 140, and forms a groove 152a at the tip to form a motor shaft 142 of the driving motor 140. ) Slit 152 inserted into the slit, a light emitting portion 154 provided on one side of the slit 152 and outputting an optical signal, and an opposite side of the light emitting portion 154 with the slit 152 interposed therebetween. The light receiving unit 156 is configured to receive an optical signal passing through the groove 152a of the slit 152.

On the other hand, the protective cover 158 surrounding the slit 152, the light emitting portion 154 and the light receiving portion 156 in order to prevent the sensitive sensors are not moved due to the external force or contaminated by foreign matters. Equipped.

The power transmission unit 160 includes a worm gear 162 inserted into the motor shaft 142 of the drive motor 140, an output gear 166 for driving the lever 170 to be described later, and the worm gear 162. It is composed of a reduction gear 164 disposed between the output gear 166. Here, the output gear 166 is formed with a guide groove 166a having a protruding piece 166b inwardly formed on the upper and lower surfaces thereof, and a fixing hole 166c formed at the center thereof.

The lever 170 protrudes the hook 172 on both sides of the lower end, forms a groove 174 between the hooks 172, and penetrates the hook making mold pin above the hook 172. The ball 176 is formed, and the operation rod 178 is formed at the top.

Meanwhile, the slit of the feedback signal unit 150 and the worm gear 162 of the power transmission unit 160 are integrally formed and inserted into the motor shaft 142 of the driving motor 140.

Hereinafter, the operation of the present invention air conditioner door actuator having the above configuration will be described.

5 and 6 are cross-sectional views showing a coupling state of the air conditioner door actuator for automobiles of the present invention, and FIGS. 7 and 8a and 8b are combined cross-sectional views showing an assembly structure of a lever of the air conditioner door actuator for automobiles of the present invention. 9 and 10a, 10b, and 10c are sectional views and assembling process diagrams showing a coupling state between a terminal and a driving motor of the air conditioner door actuator for a vehicle according to the present invention, and FIG. 11 is an air conditioner door actuator for a vehicle according to the present invention. Is a sectional view and a function diagram showing a feedback signal portion of the?

First, referring to the coupling state of the present invention car air conditioning door actuator, as shown in Figure 5, 6, the terminal 130, the drive motor 140 and the seating portion 111 of the lower case 110, The feedback signal unit 150 and the power transmission unit 160 are seated, and the lever 170 inserted through the upper case 120 while the upper case 120 is assembled to the upper side of the lower case 110. ) Is inserted into the power transmission unit 160 to rotate according to the driving of the driving motor to adjust the damper of the discharge port.

Here, the upper case 120 is assembled to the upper side of the lower case 110 while the wall portion 122 of the upper case 120 is completely wrapped around the outer wall portion 112 of the lower case 110, and the lower case 110. The fixing hook 113 protruding from the wall portion 112 of the) is caught by the fastening hole 123 formed in the wall portion 122 of the upper case 120, thereby preventing separation.

At this time, the assembling of the upper case 120 is facilitated by the inclined surface (112a) formed on the outer side of the upper wall portion 112 of the lower case 110, the fastening hole 123 is formed extending from the wall portion 122 as in the prior art Rather, it is formed on the plate surface of the wall portion 122 to prevent breakage and deformation of the fastening hole 123 after assembly, so that the wall portion 122 of the upper case 120 wraps to the bottom of the wall portion 112 of the lower case 110. By being assembled, the lower case 110 and the upper case 120 are assembled in a completely sealed structure so that noise generated therein does not leak to the outside.

In addition, the wall portion 112 at the position where the fixed hook 113 is formed by the incision grooves 114 formed at both sides of the fixed hook 113 is increased in elasticity, so that the fastening hole 123 of the upper case 120 is increased. The fastening is smooth and the phenomenon that the wall 112 is deformed is prevented. In addition, when disassembling the upper case 120 from the lower case 110, the fixing hook 113 of the lower case 110 through the disassembling groove 115 formed on the outer side of the fixing hook 113, the upper case 120 It is easy to disassemble because it can be separated from the fastening hole (123).

Here, the power transmission unit 160 for transmitting the rotational force of the drive motor 140 to the lever 170 is seated on the seating portion 111 of the lower case 110, such a power transmission unit 160 Worm gear 162 constituting the worm is inserted and fixed on the motor shaft 142 of the drive motor 140, the output gear 166 is a guide groove 166a formed on the plate surface lower case 110 and the upper case 120 Ring-shaped ribs 117 and 125 formed inside the through holes 116 and 124 are rotatably positioned, and the reduction gear 164 is disposed between the worm gear 162 and the output gear 166 to form the worm gear 162. The rotational force is transmitted to the output gear 166.

On the other hand, the projections (117a, 125a) formed on one side of the ring-shaped ribs (117, 125) of the upper case 120 and the lower case 110 is caught by the protruding piece (166b) located in the guide groove (166a) of the output gear (166). Since the rotation angle of the output gear 166 is limited, the start / end point of the lever 170 can be set, and the positional error of the damper controlled by the operation 178 of the lever 170 is improved.

On the other hand, the slit is the worm gear 162 of the power transmission unit 160 is integrally formed and inserted into the motor shaft 142 of the drive motor 140, since these are composed of one component, the assembly labor is reduced, the drive When the motor 140 rotates, separation of the slit 152 is prevented.

As shown in FIG. 7, the lever 170 passes through the through hole 124 of the upper case 120 and is inserted into the fixing hole 166c of the output gear 166. In this case, a groove 174 formed between the hooks 172. Since the hook 172 is elastically compressed and then retracts to penetrate the output gear 166, the hook 172 is not only prevented from being damaged by the hook 172 but also firmly assembled to the fixing hole 166c of the output gear 166. Departure is prevented.

The through hole 176 penetrating through the lever 170 is formed above the hook 172 of the lever 170, the through hole 176 in the manufacturing process of the lever 170 as shown in Figure 8a As the space where the core pin P1a of the mold for forming the hook 172 is located, the core pin P1a is also removed when the upper mold P1 and the lower mold P2 of the mold die are separated as shown in FIG. 8B. Since the ball 176 is formed, it is possible to produce a low-cost mold by avoiding the method of forming the hook 172 of the lever 170 through the conventional slide mold, thereby reducing the cost.

FIG. 9 is a cross-sectional view illustrating a coupling state between a terminal and a driving motor of an air conditioning door actuator for a vehicle according to a first embodiment of the present invention, and FIGS. 10A, 10B, and 10C are views illustrating terminals of the air conditioning door actuator for an automobile of FIG. The operation diagram showing the assembly process of the drive motor is shown. As shown in FIG. 9, the front end is exposed to the outside and connected to a plug (not shown), and the rear end is connected to the motor terminal 144 of the drive motor 140 to supply power to the drive motor 140. A gripping groove 132 is formed at the rear end. First, the gripping groove 132 is provided through a separate tool or equipment as shown in FIG. 10B in a state in which the motor terminal 144 is inserted into the gripping groove 132 as shown in FIG. 10A. Bending or caulking to fix the bent portion 134 to form, and then as shown in Figure 10c to form a crimp groove 136 through the dot compression by pressing the motor terminal in the gripping groove 132 of the terminal 130 144 is fixed in two to prevent random deviation.

In this way, the conventional soldering fixing method can be avoided by pressing with physical force to prevent heavy metal contamination by soldering, mass production through automated equipment using a machine can improve the productivity of the product.

When the driving motor 140 supplied with power from the outside through the connected terminal 130 rotates forward and backward, the rotational force of the driving motor 140 is transmitted to the lever 170 by the power transmission unit 160, As the lever 170 rotates, the damper of the air outlet is adjusted to adjust the wind direction of the air discharged through the outlet.

Meanwhile, as shown in FIG. 11, a feedback signal unit 150 is formed on the motor shaft 142 of the driving motor 140 which is supplied with power by the terminal 130 and is rotated forward and backward to check the rotation amount of the driving motor 140. By correcting the error value, the damper of the air discharge port is precisely adjusted.

That is, the slit 152 fixed to the motor shaft 142 of the driving motor 140 between the light emitting unit 154 for outputting the optical signal and the light receiving unit 156 for inputting the optical signal output from the light emitting unit 154. ) So that the groove 152a is positioned so that the optical signal output from the light emitting unit 154 passes through the groove 152a of the slit 152 and is input to the light receiving unit 156.

Therefore, as shown in FIG. 12, when the rotation angle of the driving motor starts to rotate in the state of 0 ㅀ, the optical signal output from the light emitting unit is input to the light receiving unit through the groove of the slit until it rotates 90 ㅀ through 45 ㅀ. When the arc is turned on, the light signal is blocked by the slot blocking the space between the light emitting part and the light receiving part from 90 ° to 180 °, and the optical signal is turned off.Likewise, when the driving motor passes 180 °, the groove of the slit between the light emitting part and the light receiving part is passed. As it is positioned, the optical signal passes again and is turned on.

That is, each time the slit 152 fixed to the motor shaft 142 of the driving motor 140 rotates 180 ㅀ, one optical signal passing through the groove 152a is input to the light receiving unit 156, so that the user's setting signal and The number of optical signals input to the light receiving unit 156 is compared, and if there is a difference in the comparison value, the driving motor 140 is additionally reversed and rotated to correct the rotation amount.

As such, by forming one groove 152a in the slit 152 to simplify the signal, the signal output structure is simplified, and the recognition rate of the signal is excellent, thereby enabling precise position control.

In addition, the light emitting unit 154 and the light receiving unit 156 are damaged by an external force or the groove 152a of the slit 152 through which the optical signal is transmitted is contaminated by foreign matters, thereby causing an error in measuring the amount of rotation of the driving motor 140. The protective cover 158 protects the slit 152 and the light emitting unit 154 and the light receiving unit 156 in order to prevent them from being prevented.

FIG. 13 is a cross-sectional view illustrating a coupling state between a terminal and a driving motor of an air conditioning door actuator for a vehicle according to a second embodiment of the present invention, and FIGS. 14A and 14B are partial perspective views illustrating a fixing method according to the embodiment of FIG. 13. .

The terminal 130a of the other embodiment shown in FIG. 13 is also connected to a plug (not shown) such that the front end is exposed to the outside in a state in which the terminal 130a is seated on the seating part 111 of the lower case 110 as in the embodiment. It is connected to the motor terminal 144 of the motor 140 to supply power to the drive motor 140.

The terminal of this embodiment is formed to protrude by cutting the fixing piece 134 'for fixing the motor terminal 144 to the rear end as shown in Figure 13 from the plate surface 132', and as shown in Figure 14a and the plate surface 132 ' In the state in which the motor terminal 144 is inserted between the fixing pieces 134 ', a caulking part 136' is formed on the fixing piece 132 'through a separate tool or equipment as shown in FIG. The motor terminal 144 is crimped and fixed between the fixing piece 134 'and the plate surface 132'.

15A and 15B are functional diagrams illustrating a process of assembling a terminal and a driving motor of an air conditioning door actuator for a vehicle according to a third embodiment of the present invention.

The rivet 137 is formed in the terminal 130 of the door actuator, and the rivet insertion groove 145 is formed in the motor terminal 144. Then, the rivet 137 of the terminal 130 is inserted into the rivet insertion groove 145 (FIG. 15A), and then the rivet 137 is compressed and fixed (FIG. 15B).

16A and 16B are functional diagrams illustrating a process of assembling the terminal 130 and the driving motor 140 of the air conditioner door actuator for a vehicle according to the fourth embodiment of the present invention.

The terminal 130 of the door actuator has a caulking portion including a bent portion 138 extending in a '┗┛' shape and a tooth portion 139 formed by cutting a plate surface of the bent portion 138 into a sawtooth shape. After the motor terminal 144 is seated on the bent portion 138 of the terminal 130 (FIG. 16A), the tooth terminal 139 is pressed in the direction surrounding the terminal 130 to press the motor terminal 144 to the terminal 130. Can be fixed at

13 to 16b described above also deviate from the conventional soldering fixing method, and prevents heavy metal contamination by soldering by mechanically crimping and fixing each part and mass production through an automated facility It will be possible to improve.

The air conditioner door actuator for automobiles of the present invention as described above has an effect of precisely controlling the position of the drive motor by allowing the feedback signal according to the rotation of the drive motor to be generated by a contactless method.

In addition, the feedback signal generating unit by a non-contact method is wrapped in a protective cover to prevent damage caused by external impact or pollutants to prevent the occurrence of an error.

The air conditioner door actuator of the present invention comprises a worm gear and a slit fixed to the motor shaft of the drive motor integrally inserted into the motor shaft of the drive motor to generate a feedback signal uniformly, and reduce the labor required for assembly In addition, there is an effect of preventing the slit from detaching arbitrarily during the rotation of the drive motor.

The air conditioner door actuator for automobiles of the present invention has a stopper for limiting the rotational angle of the lever in the actuator to form a stable angle control and the movement angle of the lever is accurate.

According to the present invention, the air conditioner door actuator for automobiles is manufactured from a general mold by removing the lever from the slide mold method, thereby reducing mold labor and mold cost, preventing the breakage by allowing the hook to be elastically inserted, and freely detaching. It is effective to prevent.

The air conditioner door actuator for automobiles of the present invention is fixed by physical force such as bending or caulking of the terminal for supplying the power and the motor of the driving motor, so that heavy metal contamination is prevented without soldering, and the production by the automated process is possible. The productivity is improved.

The air conditioner door actuator for automobiles of the present invention is assembled so that the upper case completely covers the lower part of the lower case so that internal noise does not leak and forms an incision groove on both sides of the fixing hook to impart elastic force to the fixing hook, In addition, the deformation of the wall is prevented, and fastening holes caught in the fixing hooks of the lower case are formed on the plate surface of the wall of the upper case, thereby preventing the damage of the fastening holes.

Claims (14)

Connected to the lower case 110, the upper case 120 coupled to an upper portion of the lower case 110, a terminal 130 seated on an upper portion of the lower case 120, and the terminal 130. The drive motor 140 receives the power, the feedback signal unit 150 for checking the rotation amount of the drive motor 140 to correct the error, and the power for transmitting the rotational force of the drive motor 140 to the lever 170. In the air conditioner door actuator for automobiles formed with the transmission unit 160 and the lever 170 to reciprocate by the rotation of the drive motor 140, The feedback signal unit 150 may include a light emitting unit 154 for outputting an optical signal, a light receiving unit 156 for receiving an optical signal of the light emitting unit 154, and a groove 152a formed at a front end of the driving motor. An air conditioner door actuator for automobiles, comprising a slit 152 inserted into a motor shaft 142 of a 140. The method of claim 1, The feedback signal unit 150 is a vehicle air conditioning door actuator further comprises a protective cover (158) surrounding the outside. The method of claim 1, The power transmission unit 160 includes a worm gear 162 inserted into the motor shaft 142 of the drive motor 140, an output gear 166 for driving the lever 170, and the worm gear 162 and the output gear. An air conditioning door actuator for automobiles, comprising a reduction gear 164 disposed between 166. The method according to claim 1 or 3, The slit 152 and the worm gear 162 to be inserted into the motor shaft 142 is an automobile air conditioning door actuator. The method of claim 1, The lower case 110 and the upper case 120 have ring-shaped ribs 117 and 125 formed with protrusions 117a and 125a on one side thereof, respectively, and the output gear 166 of the power transmission unit 160. Is a protruding piece (166b) is formed on the inside air conditioning door actuator for automobiles to form a guide groove (166a) for receiving the ring-shaped ribs (117a, 125a). The method of claim 1, The lever 170 has a hook 172 protruding from both sides of the lower end, and a groove 174 is formed between the hooks 172. The method of claim 1, The lower case 110 forms an inclined surface 112a at the outer edge of the wall part 112, and the upper case 120 is assembled such that the wall part 122 surrounds the outer side of the wall part 112 of the lower case 110. Automotive air conditioning door actuators. The method of claim 7, wherein The lower case 110 forms a plurality of hooks 113 on the outside of the wall portion 112 and forms cutouts 114 on both sides of the hook hook 113, and the upper case 120 is formed on the wall portion. Air-conditioning door actuator for automobile to form a fastening hole (123) to be caught by the hook hook (113). The method of claim 8, The lower case 110 is a vehicle air conditioning door actuator for forming a disassembly groove 115 at the bottom of the wall 112, the hook hook 113 is located. The method of claim 1, The terminal 130 has a gripping groove 132 formed at a rear end thereof, and is bent in the state where the motor terminal 144 of the driving motor 140 is inserted into the gripping groove 132 to form a bent portion 134. According to the bent portion 134, the motor terminal 144 is fixed to the automotive air conditioner door actuator. The method of claim 10, The terminal 130 press-bonds the gripping groove 132 to which the motor terminal 144 of the driving motor 140 is fixed by bending to form a crimping groove 136 to hold the gripping groove 132 and the motor terminal 144. Air-conditioning door actuator for automobiles in which The method of claim 1, The terminal 130 is protruded by cutting the fixing piece 134 'from the plate surface at the rear end, and the motor terminal 144 of the driving motor 140 is inserted between the plate surface 132' and the fixing piece 134 '. The air conditioner door actuator for a vehicle in which the fixing piece 134 'and the motor terminal 144 are crimped while the caulking portion 136' is formed by caulking. The method of claim 1, A rivet 137 is formed in the terminal 130 and a rivet insertion groove 145 is formed in the motor terminal 144. The rivet 137 is inserted into the rivet insertion groove 145, and then compressed to the motor terminal. Automotive air conditioning door actuators fixed to terminals. The method of claim 1, The terminal 130 has a bent portion 138 extending in a '┗┛' shape and the coking portion consisting of a toothed portion 139 formed by cutting the plate surface of the bent portion into a sawtooth shape, the terminal 130 is the motor After mounting the terminal (144) to the bent portion (138) pressurizes the tooth portion (139) in the direction surrounding the terminal to fix the motor terminal to the terminal, the air conditioner door actuator for automobiles.

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