KR20110117587A - Elastic driving device for sliding hinge of cell phone - Google Patents

Abstract

The present invention relates to an elastic actuator for a slide hinge installed in a mobile phone, and in more detail, the first body is finely manufactured by an etching method used in a semiconductor manufacturing process, and is elastically received by a spring; It relates to an elastic driving body for a slide hinge which is installed in a mobile phone with little flow when the second body is located on the same line and receives a force from the outside.

Description

Elastic Driving Device for Sliding Hinge of Cell Phone

The present invention relates to an elastic actuator for a slide hinge installed in a mobile phone, and in more detail, the first body is finely manufactured by an etching method used in a semiconductor manufacturing process, and is elastically received by a spring; It relates to an elastic driving body for a slide hinge which is installed in a mobile phone with little flow when the second body is located on the same line and receives a force from the outside.

The elastic member of various structures is used for the mechanism or apparatus which needs elastic force. An elastic member that provides an elastic force is mainly used in a sliding module, and a representative mobile phone of the sliding module is a sliding type phone.

Mobile phones for providing wireless communication services have become a necessity of people, and these mobile phones are manufactured in various forms (for example, bar type, flip type, and folding type) to suit people's preferences.

However, the bar type mobile phone has a problem in that the keypad is exposed to the outside and the keypad is easily damaged. In the flip type mobile phone proposed to solve this problem, the problem of the bar type mobile phone is solved by covering the keypad with a flip. However, the flip type mobile phone has a long length of the main body, which is inconvenient to carry.

In order to reduce the length of the main body of the bar-type and flip-type cell phones, a clamshell cell phone is proposed. The clamshell cell phone has a structure that can open and close a folder during a call or a cell phone. Connecting hinge parts are easily damaged.

In order to solve the problem of the clamshell mobile phone, a sliding type mobile phone has been proposed, and a conventional sliding type mobile phone has a sliding module between a receiving unit having a liquid crystal display and a calling unit having a keypad. It has a structure to be installed.

1 is a diagram showing an example of a conventional sliding mobile phone.

Referring to Fig. 1, the conventional sliding type mobile phone includes a receiver 1 having a liquid crystal screen and a communication part 5 having a keypad of the mobile phone.

The conventional sliding cell phone includes a torsion spring wound spirally a plurality of times in order to slide the receiver 1 in which the liquid crystal screen is installed. In the case of the sliding module using the torsion spring, the spring is wound helically a plurality of times by the tension of the spring, so that the distance between the hydration part 1 and the communication part 5 is equal to the length of the coil spring. There was a problem that the sliding module is required to be thick.

In the case of a sliding module using a conventional torsion spring, there is a problem in that the time required for the process of processing the torsion spring increases the cost of the product, the elastic force of the torsion spring is lowered due to the repeated sliding action, the torsion spring There is a fear that the durability is broken. In addition, since the torsion spring used in the sliding module is formed of a metal which is a conductive material, when the torsion spring comes into contact with the FPCB (Flexible Printed Circuit Board), etc., which is formed inside the mobile phone, electric interference occurs, which causes a failure of the mobile phone. There was a problem.

In addition, in the conventional elastic module for the sliding module, the elastic force is limited depending on its shape, there was an inconvenience to use different elastic members according to the use, and in order to increase the elastic force, the size (length and width) of the elastic member Since it has to be extended, when the space to which the elastic member is to be mounted is limited and high elastic force is required, there is a difficulty in selecting and using the elastic member.

The present invention uses a etching method used in a semiconductor manufacturing process to produce a fine thickness, the flow is almost when the first body and the second body, which is elasticity by the spring is located on the same line and receives a force from the outside An object of the present invention is to provide an elastic driving body for a slide hinge that is installed in a mobile phone.

In order to achieve the above object, the slide hinge elastic body is installed in the mobile phone according to the present invention as an elastic drive body for the slide hinge is installed in the mobile phone,

A first body 30 having three spring supports 32 each configured up and down, and a guide 34 having a hook 36 serving as a stopper at the center portion thereof;

The hook groove 46 and the guide 34 which are engaged with the rail groove 42 and the guide hook 36 of the guide to which each spring support 32 is inserted and are prevented from being detached from the 1st body 30 are inserted, It is characterized by consisting of a second body formed with a movable guide groove 44,

Both side surfaces of the first body 30 and the second body 40 is characterized in that the hinge engaging portions 38 and 48, which are fitted to be rotatable with the conventional slide hinge, respectively, are formed,

The first body 30 comprising the spring support 32 and the guide 34 is made of metal and the second body 40 is made of plastic injection molding.

In the elastic hinge body for a slide hinge according to another embodiment of the present invention, a plurality of shafts 62 are provided, the guide 64 is elongated next to the shaft 62 in the same direction as the shaft 62 is provided A rod (60) having a hooked guide stopper (65) formed at an end of the guide (64);

The same number of coil springs 50 as the shafts 62 fitted to the respective shafts 62, and the guide grooves through which the shaft movement holes 72 and the guides 64, into which the shafts are inserted, move. 74, consisting of a body 70,

The guide groove 74 has a stopper having a reverse hook shape. When the guide 64 is fitted into the guide groove 74, the guide 64 is caught by the guide stopper 65 so that the guide 64 is separated from the guide groove 74. Characterized in that it is prevented,

The rod 60 of the slide hinge elastic drive member is characterized in that it is manufactured by an etching method.

In the elastic device according to the present invention, the second body may be manufactured by using an etching method used in a semiconductor manufacturing process with respect to a metal plate in order to manufacture an elastic actuator having a fine thickness, and thus the thickness of the second body may be finely manufactured. Since the first body and the second body, which are elastic by the spring, are positioned on the same line, there is almost no flow in the elastic driving body when the sliding hinge is applied to the elastic driving body while sliding up and down.

1 is a diagram showing an example of a conventional sliding mobile phone.
2 is an exploded view of the elastic hinge body for a slide hinge installed in the mobile phone according to the present invention.
3 is an exploded perspective view showing different embodiments of the first body in the elastic hinge body for a slide hinge installed in the mobile phone according to the present invention.
FIG. 4 shows a configuration of a cutaway view of the spring support of AA ′ shown in FIG. 2.
Figure 5 is a comparison with the conventional elastic drive for explaining the effect of the elastic hinge for the slide hinge installed in the mobile phone according to the present invention.
Figure 6 is an exploded perspective view and a combined perspective view of the slide hinge elastic actuator according to another embodiment of the present invention.
7 is a state diagram of a state in which the elastic hinge body for a slide hinge according to another embodiment of the present invention is mounted and operated on the slide hinge.

2 is an exploded view of the elastic hinge body for a slide hinge installed in the mobile phone according to the present invention.

FIG. 2 (a) shows a view of the second body from the outside, and FIG. 2 (b) shows the configuration of the inside of the second body.

Referring to Figure 2, the elastic hinge body for the slide hinge installed in the mobile phone according to the present invention is composed of three spring support 32 each up and down, so that the spring 50 is inserted and fitted, The first body 30, which is composed of a guide 34 having a hook 36 serving as a stopper, and a rail groove 42 and a hook of the guide, through which each spring support 32 is fitted and supported ( 36 and a second body 30 formed with a hook 46 for preventing separation of the first body 30 and a guide groove 44 through which the guide 34 is inserted and movable.

On both sides of the first body 30 and the second body 40, in the conventional slide hinge consisting of the main body and the auxiliary body sliding up and down along the main body, the main body and the auxiliary body is connected to one side, respectively, and rotated Hinge engaging portions 38 and 48 fitted to rivets or the like are formed so as to be possible.

The rail groove 42 according to the present invention is formed as a hole penetrating the inside of the second body 40.

The first body 30 comprising the spring support 32 and the guide 34 according to the present invention is composed of a thin thin metal plate, and the second body 40 is composed of a plastic injection molding. As the thickness of the mobile phone becomes thinner, the thickness of the first body 30 is about 0.5 mm, and the overall thickness of the combined state with the second body 40 is also about 0.6 mm. The overall length of the body 30 is configured to about 3 cm.

3 is an exploded perspective view showing different embodiments of the first body in the elastic hinge body for a slide hinge installed in the mobile phone according to the present invention.

Referring to FIG. 3, the first body 31 of the elastic drive unit shown in FIG. 3 (a) has a configuration in which the rivet assembly portion 39 is separately configured. The first body 31 is composed of a thin metal plate, the rivet assembly 39 is composed of a separate plastic injection molding to be combined with the first body 31, or as an insert injection is combined with the first body 31 Done.

One or more residual holes 37 are formed in the first body 31 to strengthen the fastening force with the rivet assembly 39 of plastic material.

Each spring 50 is fitted to a respective spring support 32 and the spring support 32 does not pass through the rail groove 42 when the second body 40 is compressed in the right direction. As the spring moves, the spring 50 is compressed.

FIG. 4 shows a configuration of a cutaway view of the spring support of AA ′ shown in FIG. 2.

Referring to FIG. 4, the first body 30 of the elastic hinge body for the slide hinge installed in the mobile phone according to the present invention is formed of a very thin metal plate having a thickness of about 0.5 mm.

The first body 30 including the spring support 32 and the guide 34 of the present invention is a method of etching the thin metal plate to form the first body 30 using an etching technique used in a semiconductor manufacturing process. To prepare.

The treatment by coating the coating film 34 or the plating film on the surface of the first body 30 produced by the etching process is shown.

Figure 5 is a comparison with the conventional elastic drive for explaining the effect of the elastic hinge for the slide hinge installed in the mobile phone according to the present invention.

Referring to Figure 5, Figure 5 (a) shows the configuration of a conventional elastic drive body. Conventional elastic drive body has a configuration in which one rod is installed up and down each inside the elastic drive body and the spring 50 is installed on each rod. If the conventional mobile phone sliding hinge is applied up and down in the left and right while sliding up and down, the left and right rods do not lie on the same line, there is a large flow problem.

This is because the upper and lower rods move inside the elastic drive body, and the spring 50, which is compressed when the spring 50 is compressed, also transmits force up and down perpendicular to the direction in which the rod is moved.

On the contrary, in the elastic driving body according to the present invention shown in FIG. 5 (b), the spring support 32 has a first body 30 and a second body 40 contracted by a force applied while the mobile phone sliding hinge slides up and down. Since it is located on the same line along the line, when the external force is applied, the spring 50 transfers the force only when the spring support 32 moves to the left and right, so that the sliding hinge can be stably operated so that there is little flow. Have

Although only one spring 50 is shown for explanation in FIG. 5 (b), in practice, six springs 50 are configured to be fitted to the spring support 32.

The first body 30 of the elastic drive member according to the present invention is manufactured by an etching process used in a semiconductor process because the first body 30 is made of a thin metal plate with a thickness of about 0.5 mm. This etching process is a conventional technique, such as metal plate degreasing process, photo-resist process, exposure process, developing process, drying process, etching process, peeling process, washing drying process, inspection process, plating It consists of a process.

Detailed description of each manufacturing process is as follows.

First step: metal plate degreasing step

The raw metal plate is put into the front face to remove impurities or stains such as foreign matter, dust and oil attached to the surface of the metal plate with a liquid degreasing agent and a brush.

Second process: photo-resist coating process

On the surface of the metal plate from which impurities are removed, a photo-resist, which is a photosensitive material, is coated on the surface of the metal plate with a uniform thickness in a dark room. Photo-resist is a polymeric material that changes its resistance to chemicals when exposed to light.

Third Step: Exposure Process

When the pattern consisting of transparent and opaque parts is placed on the upper surface of the photo-resist coated and adhered or bonded together, the infrared light is irradiated for 45 seconds before and after. And the part not receiving infrared light by the opaque part is prevented from being hardened, so that exposure is performed, and when the exposure is completed, the pattern is removed.

Fourth Process: Developing Process

When the exposed metal plate is placed in a developer such as soda ash and developed, the photo-resist of the hardened portion remains, and the photo-resist of the uncured portion is separated and removed.

5th process: drying process

In the developing process, in order to cure the photo-resist on the surface of the metal plate, it is added to a dryer maintained at a temperature of about 100 ° C. and dried for 10 to 15 minutes.

6th step: etching process

When the developer and the first dried metal sheet are sprayed with ferric chloride (FeCl 3), which is an etching solution, by a nozzle for about 15 minutes, portions other than the photo-resist are removed.

7th step: stripping process

Dilute water (release agent) diluted by mixing 10% Caustic Sodium (NaOH) with 90% water by volume ratio to about 70 ° C, and soak for 15 minutes to remain on the surface of the first body of metal 30 (coating) Remove the photo-resist.

8th step: washing and drying process

The first body 30 of the metal with the release agent (caustic soda) is immersed in water for several hours to remove the caustic soda on the surface, and then dried in a dryer maintained at a temperature of about 100 ° C.

Step 9: Inspection Process

Defects are screened out using a beam project (magnifier) or a tool microscope.

10th step: Plating process

The first body 30 that has passed the dimensions and the surface inspection is plated with electroless nickel or the like to form a film on the surface.

Figure 6 is an exploded perspective view and a combined perspective view of the slide hinge elastic actuator according to another embodiment of the present invention.

6A and 6B, in the elastic hinge body for the slide hinge according to another embodiment of the present invention, a plurality of shafts 62 are installed, and extend along the shaft 62 in the same direction as the shaft 62. The guide 64 is provided, and the end portion of the guide 64 has the same number of coils as the rods 60 and the shafts 62 fitted to the respective shafts 62, each of which has a hook-shaped guide stopper 65. The body 50 is comprised from the spring 50, the shaft movement hole 72 in which the shaft is inserted, and the guide groove 74 in which the guide 64 is inserted and moved.

The guide groove 74 of the present invention is configured with a stop hook of a reverse hook shape so that when the guide 64 is fitted into the guide groove 74, the guide 64 is caught by the guide stopper 65 and the guide 64 is separated from the guide groove 74. Is prevented.

The rod 60 of the present invention is manufactured by an etching method so as to have an extremely thin thickness.

In the rod 60 and the body 70 of the present invention, fastening holes 66 and 76 are formed to be rotatably coupled with the frame 10 and the slider 20, respectively.

7 is a state diagram of a state in which the elastic hinge body for a slide hinge according to another embodiment of the present invention is mounted and operated on the slide hinge.

FIG. 7A shows a state in which the slider 20 is slid upward as far as possible with respect to the frame 10 constituting the sliding module. FIG. 7B shows a state in which the slider 20 is slid halfway with respect to the frame 10 constituting the sliding module. FIG. 7C shows a state where the slider 20 is slid down as far as possible with respect to the frame 10 constituting the sliding module.

In the lower portion of the slider 20 of the present invention, an FPCB opening groove 80 is formed as an open groove such that an FPCB 84 having a connector attached to the end passes through the lower portion of the slider 20. This is for the electronic component coupled to the slider 20 and the electronic component attached to the frame 10 to be electrically connected, and the FPCB 84 because the slider 20 slides up and down relative to the frame 10. The use of is essential.

The elastic actuator according to the present invention has a configuration in which the body 70 is perpendicular to the guide 64, so that the FPCB 84 fits with the elastic actuator according to the present invention when the slider 20 slides up and down. Closing is prevented.

The rod 60 and the body 70 of the elastic drive body according to the present invention are connected to the rod 10 and the connecting protrusions 12 and 22, such as rivets, to be rotatably coupled with the frame 10 and the slider 20. The fastening holes 66 and 76 of the body 70 are fitted.

While the preferred embodiments of the present invention have been described using specific terms, such descriptions are for illustrative purposes only, and it is understood that various changes and modifications may be made without departing from the spirit and scope of the following claims. Should be done.

30, 31: first body 32: spring support
34: guide 35: coating film
36: hook
37: empty ball 38: hinge coupling portion
39: rivet assembly 40: second body
42: rail groove 44: guide groove
48: hinge coupling portion 50: spring
60: rod 62: shaft
64: Guide 70: Body
74: guide groove

Claims (5)

An elastic driving body for a slide hinge installed in a mobile phone,
A first body 30 having three spring supports 32 each configured up and down, and a guide 34 having a hook 36 serving as a stopper at the center portion thereof;
The hook groove 46 and the guide 34 which are engaged with the rail groove 42 and the guide hook 36 of the guide to which each spring support 32 is inserted and are prevented from being detached from the 1st body 30 are inserted, An elastic drive body for a slide hinge, characterized in that it comprises a second body formed with a movable guide groove (44).
The method of claim 1,
Both sides of the first body 30 and the second body 40, the hinge hinge portion 38, 48 which is fitted to be rotatable with the conventional slide hinge, respectively, characterized in that the elastic actuator for the slide hinge .
The method of claim 1,
An elastic actuator for a slide hinge, characterized in that the first body (30) comprising a spring support (32) and a guide (34) is made of metal, and the second body (40) is made of plastic injection molding.
A plurality of shafts 62 are provided, and a guide 64 elongated next to the shaft 62 in the same direction as the shaft 62 is formed, and a guide stopper in the shape of a hook is formed at the distal end of the guide 64. A rod 60 configured with 65;
The same number of coil springs 50 as the shafts 62 fitted to the respective shafts 62, and
The shaft 70 is composed of a body 70 consisting of a shaft moving hole 72 is inserted into the guide 64 and the guide groove 74 is inserted and moved,
The guide groove 74 has a stopper having a reverse hook shape. When the guide 64 is fitted into the guide groove 74, the guide 64 is caught by the guide stopper 65 so that the guide 64 is separated from the guide groove 74. To prevent the elastic drive body for the slide hinge.
The method of claim 4, wherein
The rod 60 of the slide hinge elastic actuator is manufactured by an etching method.

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