KR20170029722A

KR20170029722A - Voice coil motor

Info

Publication number: KR20170029722A
Application number: KR1020150126590A
Authority: KR
Inventors: 장준석; 강병길; 김만기
Original assignee: 자화전자(주)
Priority date: 2015-09-07
Filing date: 2015-09-07
Publication date: 2017-03-16

Abstract

A voice coil motor according to the present invention includes: a housing having an adhesive injection port on an outer surface; A carrier disposed on an inner side of the housing and having a coil coupled to an outer surface thereof; A magnet fixedly installed inside the housing to be disposed outside the coil; An elastic member coupled with the carrier to elastically support the carrier; An adhesive reservoir disposed inside the housing to store an adhesive injected through an adhesive injection port of the housing; And an adhesive guide channel connected to the adhesive reservoir for discharging the adhesive stored in the adhesive reservoir to components other than the carrier.

Description

Voice coil motor {VOICE COIL MOTOR}

Field of the Invention [0002] The present invention relates to a voice coil motor, and more particularly, to a structure-improved voice coil motor for reducing a manufacturing process and improving manufacturing efficiency.

2. Description of the Related Art Generally, an actuator for moving a lens in an optical axis direction is installed in a camera module used in a small-sized optical device such as a camera of a mobile phone or a digital camera for automatic zoom adjustment, automatic focus adjustment and image stabilization.

Such an actuator can be divided into a voice coil motor system, a piezo actuator system, and a rotary motor system. Among them, voice coil motors are widely used for small electronic devices and precision control because they can be operated at low power with fast response, linearity and compact size.

The voice coil motor is an actuator developed by focusing on the vibrating tube of the speaker vibrating back and forth due to the force generated by the Fleming's left-hand rule between the voice current flowing in the voice coil of the speaker and the magnetic force generated by the permanent magnet. These voice coil motors have advantages such as small volume, low consumption of electricity, accurate operation displacement, and low price.

A voice coil motor has a structure in which a magnetic circuit is formed of a soft magnetic material and a permanent magnet, and a coil is placed in a void portion in the magnetic circuit. The voice coil motor is operated by a Lorentz force generated when a current flows in a coil in a magnetic field formed by a magnet. The direction of the generated force is determined by Fleming's left-hand rule. The position of the lens module or the like can be adjusted by linearly moving the component.

An example of a voice coil motor is disclosed in Korean Patent Registration No. 1091919 (Dec. 08, 2011). The voice coil motor disclosed in the above publication includes a lens barrel provided with at least one focus adjusting lens, a sleeve accommodating the lens barrel therein, a coil coupled to the outer circumferential surface of the sleeve, A yoke to which the magnet is coupled, and an elastic member for restricting upward and downward movement of the lens barrel accommodated in the inside of the sleeve and the sleeve.

However, in the conventional voice coil motor as described above, one component constituting the coil motor is coated with an adhesive such as epoxy and the other components are sequentially adhered after elapsed time for curing There is a problem that the manufacturing time is long and the manufacturing efficiency is low because the parts are assembled in order.

Korean Patent Registration No. 0763277 (2007.04.04) Korean Patent Publication No. 2008-0006723 (2008. 01. 17) Korean Registered Patent No. 1091919 (Dec. 08, 2011) Korean Registered Patent No. 1428039 (Apr. 2014, 08)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to reduce the manufacturing process by taking a structure in which internal component parts can be bonded together through a unified and unified process after completion of assembling process of component parts, And to provide a voice coil motor that can shorten time and increase manufacturing efficiency.

Other objects and advantages of the present invention will become apparent from the following description, and it will be apparent from the description of the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by a combination of the constitution shown in the claims and the constitution thereof.

According to an aspect of the present invention, there is provided a voice coil motor comprising: a housing having an adhesive injection port on an outer surface; A carrier disposed on an inner side of the housing and having a coil coupled to an outer surface thereof; A magnet fixedly installed inside the housing to be disposed outside the coil; An elastic member coupled with the carrier to elastically support the carrier; An adhesive reservoir disposed inside the housing to store an adhesive injected through an adhesive injection port of the housing; And an adhesive guide channel connected to the adhesive reservoir for discharging the adhesive stored in the adhesive reservoir to components other than the carrier. In this case, the housing of the present invention may be made of a magnetic material at least partially so as to perform the yoke function.

The voice coil motor of the present invention may further include a middle cover installed inside the housing so as to cover an edge of the elastic member, and the adhesive reservoir and the adhesive guide channel may be provided in the middle cover. In this case, the middle cover of the present invention may further include a shielding portion disposed between the carrier and the adhesive guide channel.

More preferably, the voice coil motor of the present invention is disposed below the adhesive guide channel on the inner side of the housing so as to recover residual adhesive that has not been used for adhering component parts that are discharged from the adhesive storage part and require adhesion And may further include a trap groove.

In addition, the present invention may further include a separate terminal fixed to the housing and electrically connected to the elastic member so as to apply current to the coil through the elastic member.

According to another aspect of the present invention, there is provided a voice coil motor comprising: a base for supporting a magnet; A carrier disposed on an outer side of the magnet and facing the inner side of the magnet, the carrier moving along an optical axis; And a middle cover coupled to the upper portion of the base to support the magnet. In this case, the middle cover includes a shield portion forming a wall portion extending to the base of the base, An adhesive reservoir for storing the adhesive, and a guide channel for guiding the movement of the adhesive between the shield and the adhesive reservoir.

The voice coil motor according to another aspect of the present invention may further include an elastic member coupled with the carrier to elastically support the carrier. In this case, the base of the voice coil motor may include a groove And the shielding portion of the middle cover may surround the upper and the lower surfaces of the protrusion and form a wall portion.

According to another aspect of the present invention, there is provided a method of manufacturing a voice coil motor including a carrier having a coil coupled to an outer surface thereof, an elastic member movably supporting the carrier, and a magnetic field A step of assembling the magnet to the inside of the housing provided on the outer side of the adhesive injection port; An adhesive injection step of injecting an adhesive into an adhesive storage part provided inside the housing through an adhesive injection port of the housing; Wherein the adhesive injected into the adhesive reservoir is discharged from the adhesive reservoir through an adhesive guide channel connected to the adhesive reservoir and penetrates into the components other than the carrier to be adhered, And a curing step of curing the adhesive that has reached the component parts other than the carrier that are required to be adhered.

More preferably, the present invention is characterized in that after the step of penetrating the adhesive, residual adhesive which is discharged from the adhesive reservoir and is not used for adhering the components to be adhered is trapped in the inside of the housing as a trap groove And recovering the remaining adhesive.

The voice coil motor according to the present invention is a method in which all the components are assembled together and the adhesive injected into the adhesive reservoir provided inside the housing penetrates toward the components to be adhered, So that the manufacturing process can be remarkably shortened and the manufacturing efficiency can be enhanced.

In addition, according to the present invention, the process using epoxy such as an adhesive can be carried out by a single unified process, so that the space exposed to the adhesive or the like can be limitedly operated and the time for exposure can be further reduced, Can be further improved.

1 is a perspective view illustrating a voice coil motor according to an embodiment of the present invention;
2 is an exploded perspective view showing a voice coil motor according to an embodiment of the present invention,
3 is a cross-sectional view taken along the line II in Fig. 1,
4 is a cross-sectional view taken along line II-II in Fig. 1,
5 is a perspective view illustrating a middle cover of a voice coil motor according to an embodiment of the present invention,
6 is a partially exploded view of a voice coil motor according to an embodiment of the present invention.
7 is a flowchart illustrating a manufacturing process of a voice coil motor according to an embodiment of the present invention.
8 is a view for explaining a step of penetrating an adhesive in a method of manufacturing a voice coil motor according to an embodiment of the present invention;
9 is a view showing a modified example of an elastic member and a terminal provided in the voice coil motor according to the present invention,
10 is a plan view showing a part of a voice coil motor having an elastic member and a terminal shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

1 is a perspective view showing a voice coil motor according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing a voice coil motor according to an embodiment of the present invention, and FIG. 3 is a cross- And Fig. 4 is a cross-sectional view taken along the line II-II in Fig.

1 to 4, a voice coil motor 100 according to an embodiment of the present invention includes a housing 110, a carrier 120 movably installed inside the housing 110, A coil 130 wound around the outer surface of the carrier 120, a pair of elastic members 140 and 145 for supporting the carrier 120, a plurality of magnets 150 forming a magnetic field, (160).

In this voice coil motor 100, since the carrier 120 moves due to the Lorentz force generated when a current flows in the coil 130 in the magnetic field formed by the magnet 150, the voice coil motor 100 is applied to various devices such as a camera module, It can be used for linear movement. In addition, the voice coil motor 100 according to the present embodiment can be manufactured efficiently by adopting a structure in which constituent parts can be bonded all at once by using an adhesive such as epoxy.

The housing 110 is provided with components 120 such as a carrier 120 wound with a coil 130, a pair of elastic members 140 and 145, a plurality of magnets 150 and a middle cover 160 And the housing 110 includes a base 111 and a case 116. The housing 110 has a base 111 and a case 116. [

A through hole 112 is provided at the center of the base 111. Trapezoidal grooves 113 are formed in four corners of the base 111, respectively. The trap groove 113 is for injecting into the inside of the housing 110 to adhere the components requiring adhesion and to recover the remaining adhesive. If an unnecessary adhesive is injected to the inside of the housing 110, the remaining adhesive may flow out to the outside of the housing 110 or may penetrate into component parts which do not require adhesion. In order to solve this problem effectively, The plurality of trap grooves 113 are used to adhere the constituent parts to each other, and the adhesive remaining in the plurality of trap grooves 113 is configured to remain in the plurality of trap grooves 113 by fluid flow. The projection 114 shown in the figure is for fixing the elastic member 140 to the base 111.

The case 116 has a through hole 117 corresponding to the through hole 112 of the base 111 and an adhesive inlet 118 is provided at each of the four corners of the case 116. The plurality of adhesive injection openings 118 are for injecting the adhesive into the interior of the housing 110. An adhesive injected through the plurality of adhesive injection openings 118 is supplied to a plurality of adhesive storage portions 161 ) And then flows toward the components requiring adhesion.

Although the adhesive injection port 118 and the related structures may be provided as one each, it is more preferable that the adhesive is symmetrical such as four as shown in the figure so that the adhesive such as epoxy can be evenly distributed within a short time.

The case 116 may be made of a magnetic material so as to perform a yoke function that implements magnetic force shielding with the outside and magnetic force concentration effect to the inside. In this case, the case 116 may be made of a magnetic material as a whole, Only the enclosing part can be made of a magnetic body.

The carrier 120 is movably installed inside the housing 110. A coupling hole 121 is formed at the center of the carrier 120 so that a component such as a lens is coupled to the coupling hole 121 of the carrier 120 So as to coincide with the movement of the carrier 120 and its physical movement. It is needless to say that threads may be provided on the inner circumferential surface of the carrier 120 for assembling the carrier 120 with the components such as the lens module.

The coil 130 coupled to the outer surface of the carrier 120 receives a current from the outside and interacts with the plurality of magnets 150 to generate a magnetic force for moving the carrier 120.

A pair of elastic members 140 and 145 are respectively coupled to both ends of the carrier 120 to elastically support the carrier 120. One elastic member 140 of the pair of elastic members 140 and 145 supports one end (for example, an upper surface) of the carrier 120 and the other elastic member 145 supports the other end of the carrier 120 And supports the other end (for example, the bottom surface).

The elastic member 140 for supporting one end of the carrier 120 is fixed to the base 111 of the housing 110 while being coupled to one end of the carrier 120 so that one end of the carrier 120 is connected to the magnet 150, As shown in FIG. Such an elastic member 140 may be fixed to the carrier 120 by various methods such as adhesion with an adhesive.

The elastic member 140 is provided with a plurality of insertion holes 141 corresponding to the plurality of protrusions 114 provided on the base 111. [ The elastic member 140 is firmly fixed to the base 111 by various methods such as bonding with an adhesive in a state where the elastic member 140 is coupled to the base 111 in such a manner that a plurality of protrusions 114 are inserted into the plurality of insertion holes 141 .

The elastic member 140 also functions to transfer the current supplied from the outside to the coil 130 coupled to the carrier 120 in addition to the function of elastically supporting the carrier 120. The elastic member 140 may be provided with a pair of terminals 142 and 143. The terminals 142 and 143 may protrude outward from the base 111, It is electrically connected to the part. The pair of terminals 142 and 143 may be integrally formed with the elastic member 140 in such a manner as to be bent from the elastic member 140.

The elastic member 145 supporting the other end of the carrier 120 is fixed to the magnet 150 or the middle cover 160 in a state of being coupled to the other end of the carrier 120 so that the other end of the carrier 120 is connected to the magnet 150 As shown in FIG. The elastic member 145 may be fixed to the magnet 150 or the middle cover 160 by various methods such as adhesion using an adhesive.

These elastic members 140 and 145 are engaged with the carrier 120 to elastically support the carrier 120 so that the carrier 120 performs a linear movement according to the interaction between the coil 130 and the magnet 150 When the supply of power to the rear coil 130 is interrupted, the carrier 120 is returned to its original position. Although the figures show that the elastic members 140 and 145 are made of a leaf spring structure, the elastic members can be changed into various other structures that can support the carrier in a linearly movable manner and return the moving carrier to its original position have.

A plurality of magnets 150 are installed inside the housing 110 so as to be disposed on the outer side of the coil 130 wound on the carrier 120 in a direction opposite to the coil 130. As shown in Figures 2 and 3, do. The plurality of magnets 150 may be adhered and fixed to the base 111 or the case 116 of the housing 110 by an adhesive injected to the inside of the housing 110. A plurality of magnets 150 form a magnetic field around the coil 130 so that when the current is supplied to the coil 130, the carrier 120 moves linearly by the induction magnetic force of the coil 130. In the figure, four magnets 150 are provided so as to surround the outer side of the coil 130, but the number and arrangement of the magnets 150 can be variously changed.

1 to 6, the middle cover 160 has a rectangular ring shape and is fixed to the inside of the housing 110 so as to cover the edge of the elastic member 145 coupled with the carrier 120, The second cover 145 may be fixed between the magnet 150 and the middle cover 160. The middle cover 160 is provided with an adhesive storage unit 161, an adhesive guide channel 162, and a shielding unit 163.

The adhesive reservoir 161 may be provided at each of the four corners of the middle cover 160 so as to store the adhesive injected through the four adhesive inlets 118 formed in the case 116. The adhesive guide channel 162 serves to discharge the adhesive stored in the adhesive storage unit 161 and to flow toward the component parts requiring adhesion. At least one adhesive guide channel 162 connected to each of the adhesive reservoirs 161 may be provided. In order to effectively move the adhesive to both sides with respect to the corner, the adhesive reservoir 161 ) Standard is preferable.

The adhesive stored in the adhesive storage part 161 is discharged from the adhesive storage part 161 through the adhesive guide channel 162 and permeates toward the components requiring adhesion. As shown in FIG. 5, It is preferable that two adhesive guide channels 162 are connected to each other. The two adhesive guide channels 162 connected to one adhesive storage unit 161 discharge adhesive stored in the adhesive storage unit 161 to both sides of the housing 110 so that the adhesive inside the housing 110 is needed, Can be distributed.

Here, a component part requiring adhesion refers to a component that must be fixed except for the base 111 and the carrier 120, which must be moved within the housing 110, such as the case 116, the plurality of magnets 150 .

Shielding portions 163 of the present invention may be provided on at least one of the four corners of the middle cover 160 and positioned between the carrier 120 and the adhesive guide channel 162. The shielding portion 163 of the present invention forms a kind of wall portion extending toward the bottom surface (base surface) of the base 111 when the middle cover 160 is coupled to the upper portion of the base 111, The adhesive agent discharged from the adhesive reservoir 161 through the adhesive layer 162 is guided so as not to move (flow) toward the carrier 120.

The adhesive discharged through the adhesive guide channel 162 in the adhesive reservoir 161 by the structure of the shielding portion 163 is clogged by the shielding portion 163 so that the magnet 150 on the side of the shielding portion 163 Flows toward the carrier 120 and does not flow toward the carrier 120.

2, 5, 6 and so on, the shield 163 of the present invention is configured such that a recess 165 is included in a middle portion of a front end of the lower portion (the center of the motor) The protruding portion 165 has a shape corresponding to the protrusion 114 (specifically, the rear portion of the protrusion) for receiving the protrusion 114 for fixing the elastic member 140 to the base 111, 165 are configured to face the upper surface of the projection 114. [

The shielding portion 163 of the present invention has a shape that surrounds the upper portion and the rear portion of the protrusion 114 when the middle cover 160 is assembled to the upper portion of the base 11 from the inside of the housing 110, The adhesive guide channel 162 is provided behind the shielding portion 163 so that it is stored in the adhesive storage portion 161 and is guided by the adhesive guide channel 162. [ The adhesive agent flowing out through the through hole 162 is effectively prevented from flowing (moving) in the inside direction where the carrier is provided by the path blocking wall by the shielding portion 163 of the present invention and is provided with the magnets 150 in both side directions (Moved) in the direction of the arrow.

In addition, since the shield 163 of the present invention forms a wall portion extending downward when the middle cover 160 is coupled to the base 111, the shielding portion 163 functions as a barrier wall for restricting the above- The middle cover 160 is supported on the base 111 to perform the function of more robustly implementing the overall physical support structure of the voice coil motor 100 according to the present invention.

According to the embodiment, as described above, the insertion hole 141 provided at the corner of the lower elastic member 140 is fitted into the protrusion 114 of the base 111, so that the lower elastic member 140 is inserted into the base And the lower surface of the shielding portion 163 is in contact with the upper surface of the elastic member 140 in this state.

The overall support structure of the voice coil motor 100 of the present invention can be more firmly realized by the support structure that is organically coupled with the above structure. Further, since the middle cover 160 can maintain the formed shape, The efficiency of the process can be increased.

Although the adhesive injection port 118 into which the adhesive is injected is shown on the upper side of the case 116 in the figure, the adhesive injection port 118 may be provided on the side, The position and direction may be configured to correspond to the position and orientation of the adhesive injection port 118.

The voice coil motor 100 according to the embodiment of the present invention as described above injects a certain amount of adhesive into the adhesive storage part 161 provided inside the housing 110 and inserts a carrier The components can be adhered collectively by a method of infiltrating the component parts other than the adhesive layer 120 that need to be adhered.

Hereinafter, a specific manufacturing method of the voice coil motor 100 according to an embodiment of the present invention will be described.

FIG. 7 is a step-by-step view illustrating a method of manufacturing the voice coil motor 100 according to an embodiment of the present invention.

Referring to FIG. 7, a method of manufacturing a voice coil motor 100 according to an embodiment of the present invention includes assembling steps (S10) of assembling components, an adhesive injection step (S20) of injecting an adhesive, An adhesive infiltration step (S30) in which the adhesive is permeated through the adhesive layer, and a curing step (S40) in which the adhesive is cured.

Step S10 of assembling the components includes a carrier 120 having a coil 130 coupled to its outer surface, a pair of elastic members 140 and 145 for elastically supporting the carrier 120, The magnet 150 and the middle cover 160 are disposed on the base 111 and covered with the case 116. [ The carrier 120 may be mounted on the inside of the housing 110 in a state where the coil 130 is wound on the outer side of the carrier 120 and the pair of elastic members 140 and 145 are coupled to both ends of the carrier 120.

The step S20 of injecting the adhesive is a step of injecting a predetermined amount of adhesive into a plurality of adhesive storage parts 161 provided in the middle cover 160 through a plurality of adhesive injection ports 118 provided in the case 116 to be. The amount of the adhesive to be injected into each adhesive storage part 161 can be set in advance in the design of the voice coil motor 100. [

The step of infiltrating the adhesive S30 may be performed by infiltrating the adhesive injected into the adhesive reservoir 161 through the adhesive guide channel 162 connected to the adhesive reservoir 161 to the components other than the carrier 120 Process. 8, the adhesive stored in the adhesive storage part 161 is discharged to the lower side of the adhesive storage part 161 through the adhesive guide channel 162 connected to the adhesive storage part 161. The adhesiveness of the adhesive stored in the adhesive storage part 161 is improved by the fluidity of the adhesive, The adhesive is applied to the gap between the base 111 and the case 116, the gap G between the base 111 and the middle cover 160, the gap G between the case 116 and the magnet 150, , The gap (G) between the magnet (150) and the middle cover (160), and the like.

In this case, the shielding portion 163 of the middle cover 160 is disposed between the carrier 120 and the adhesive guide channel 162 to prevent the adhesive discharged from the adhesive storage portion 161 from flowing toward the carrier 120 . Therefore, the adhesive discharged through the adhesive guide channel 162 in the adhesive reservoir 161 can flow only toward the components other than the carrier 120 that require adhesion.

In this process, the remaining adhesive, which is discharged from the adhesive storage part 161 and can not penetrate into the component parts requiring adhesion, is recovered into the plurality of trap grooves 113 provided in the base 111. Therefore, even if an excessive amount of adhesive is injected into the housing 110, the adhesive does not flow to the outside of the housing 110, and there is no problem of permeating into the component parts which do not require adhesion.

The step of hardening the adhesive (S40) is a process of hardening the adhesive penetrating into the gap (G) between the component parts and fixing the component parts together with the adhesive. At this stage, heat can be applied depending on the characteristics of the adhesive.

As described above, in the method of manufacturing the voice coil motor 100 according to the embodiment of the present invention, after all components are assembled together, a predetermined amount of adhesive is applied to the adhesive storage portion 161 provided inside the housing 110 Injected and flowed toward the component parts through the adhesive guide channel 162, thereby making it possible to consistently adhere all the components requiring adhesion. Therefore, the manufacturing process can be reduced, the manufacturing efficiency can be improved, and the manufacturing cost can be lowered as compared with the prior art in which the constituent parts are adhered and fixed one by one.

Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited to those described and illustrated above.

For example, although the adhesive injection openings 118 for injecting the adhesive are shown at four corners of the case 116, the adhesive injection openings may be provided at various positions in various positions of the housing. In addition, the position and number of the adhesive reservoir for storing the adhesive injected through the adhesive injection port according to the placement position and number of the adhesive injection port and supplying the adhesive to the component parts requiring adhesion may be variously changed. That is, the adhesive reservoir may be provided at various positions inside the housing other than the middle cover. In view of this, the guide channel 162 or the shield 163 of the present invention may also be provided in various numbers according to the embodiments, and may be installed at various positions, Of course.

Although the terminals 142 and 143 for supplying current from the outside are shown integrally in the elastic member 140 for supporting the carrier 120 in the figure, the current is supplied to the coil through the elastic member May be manufactured separately from the elastic member and then assembled to be electrically connected to the elastic member.

9, after the elastic member 170 and the pair of terminals 180 and 181 are separately formed, they are electrically connected when assembled inside the housing 110, as shown in FIG. 10 . The elastic member 170 and each of the terminals 180 and 181 may be connected to each other by a bonding method using a silver bond or a method such as welding. As shown in the figure, when the terminal 180 (181) is made thicker than the elastic member 170 and joined to the elastic member 170, the problem of the terminal 180 (181) bending during assembly can be reduced. In addition, since the terminal 180 (181) can be made of a material different from that of the elastic member 170, the manufacturing cost can be lowered.

Also, the number of the elastic members that are coupled with the carrier and elastically support the carrier is not limited to two as shown in the drawings, but may be variously changed, and the structure of the elastic member and the connection structure with the carrier may be changed.

Although the case 116 of the housing 110 is shown as being made of a magnetic material to perform a yoke function, a separate yoke may be provided inside the housing.

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 to be limited to the details thereof and that various changes and modifications will be apparent to those skilled in the art. And various modifications and variations are possible within the scope of the appended claims.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. It should be understood that various modifications may be made in the ordinary skill in the art.

100: voice coil motor 110: housing
111: Base 113: Trap groove
114: projection 116: case
118: Adhesive inlet 120: Carrier
130: coils 140, 145, 170: elastic member
142, 143, 180, 181: Terminal 150: Magnet
160: Middle cover 161: Adhesive storage part
162: guide channel 163: shielding part

Claims

A housing provided with an adhesive injection port on its outer surface;
A carrier disposed on an inner side of the housing and having a coil coupled to an outer surface thereof;
A magnet fixedly installed inside the housing to be disposed outside the coil;
An elastic member coupled with the carrier to elastically support the carrier;
An adhesive reservoir disposed inside the housing to store an adhesive injected through an adhesive injection port of the housing; And
And an adhesive guide channel connected to the adhesive storage part so that the adhesive stored in the adhesive storage part can be discharged to components other than the carrier, which are required to be adhered.

The connector according to claim 1,
And at least a part of the magnetic body is made of a magnetic material so as to perform the yoke function.

The method according to claim 1,
Further comprising a middle cover installed inside the housing to cover an edge of the elastic member,
Wherein the adhesive storage portion and the adhesive guide channel are provided in the middle cover.

[5] The apparatus of claim 3,
And a shielding portion disposed between the carrier and the adhesive guide channel.

The method according to claim 1,
Further comprising a trap groove disposed on the inner side of the housing so as to be lower than the adhesive guide channel so as to recover residual adhesive that has not been used to adhere the component parts that are discharged from the adhesive storage unit and require adhesion, motor.

The method according to claim 1,
And a terminal fixed to the housing and electrically connected to the elastic member so as to apply a current to the coil through the elastic member.

A base for supporting the magnet;
A carrier disposed on an outer side of the magnet and facing the inner side of the magnet, the carrier moving along an optical axis; And
And a middle cover coupled to the upper portion of the base to support the magnet,
Wherein the middle cover comprises:
An adhesive reservoir disposed at the rear of the shield to store an adhesive injected from the outside, and a guiding member disposed between the shield and the adhesive reservoir for guiding movement of the adhesive, And a guide channel for guiding the voice coil to the voice coil motor.

8. The method of claim 7,
And an elastic member coupled with the carrier to elastically support the carrier,
The base may further include a projection projecting upwardly to be fitted into the groove provided in the elastic member,
Wherein the shielding portion of the middle cover surrounds an upper portion and a rear portion of the protrusion to form a wall portion.