WO2012064029A1

WO2012064029A1 - Resilient module for a handset

Info

Publication number: WO2012064029A1
Application number: PCT/KR2011/007962
Authority: WO
Inventors: 박천수
Original assignee: 에이치케이에스테크(주)
Priority date: 2010-11-10
Filing date: 2011-10-25
Publication date: 2012-05-18
Also published as: KR20120050091A; KR101153925B1

Abstract

The present invention relates to resilient module for a handset, whereby the handset is made to slide semi-automatically. The resilient module for a handset of the present invention comprises: a main spring which is arc shaped and is formed with a hinge-joint on both ends; and a reinforcing spring which is formed so as to be shorter than the length of the main spring and is joined by lamination onto the main spring. Formed spaced apart from each other on the reinforcing spring there are at least two first bent parts which project in the direction away from the main spring, and the first bent parts are mutually disposed symmetrically to the left and to the right in such a way as to disperse the stress which occurs in the main spring during compression of the main spring.

Description

Elastic Modules for Mobile Devices

The present invention relates to an elastic module for a portable terminal, the elastic module for a portable terminal for sliding the portable terminal semi-automatically.

In general, in order to use services such as broadcasting and communication while moving in a place other than a fixed location, mobile terminals such as mobile phones, PDAs, notebook computers, and DMB phones are frequently used.

The portable terminal is one of the essential necessities in order to enjoy the convenience of life in accordance with the development of the information industry, and the mobile phone is widely distributed to elementary, middle and high school students and the elderly.

The portable terminal can be classified into a folder type, a slide type, and a swing type according to the opening and closing method.

The slide type portable terminal is one of the portable terminals which are used because of various advantages such as easy to use, less trouble, and a stylish design.

The slide-type portable terminal has a structure in which a sub-body equipped with a display unit is opened and closed by sliding a sub-body equipped with a display with respect to a keypad equipped with a keypad.

An elastic module for semi-automatically sliding the subbody is disposed between the main body and the subbody.

The conventional elastic module for a portable terminal as described above is well shown in Korean Patent Publication No. 10-2010-0068182.

1 is a view showing a conventional elastic module for a mobile terminal, Figure 2 is a view showing the internal stress distribution in a state in which the conventional elastic module for a mobile terminal is compressed.

In FIG. 2, the portion marked in blue is a portion in which stress is hardly generated, and the portion marked in green is a portion in which stress is generated, and the closer to red, the higher the stress concentration.

As shown in FIG. 1, a conventional elastic module for a mobile terminal includes a main spring 34, a first reinforcing spring 32, and a second reinforcing spring 30.

The main spring 34 is formed in a curved shape and the hinge coupling portion 42 is mounted on both sides.

The first reinforcing spring 32 is shorter than the length of the main spring 34 and is disposed outside the convexly formed main spring 34.

And both ends of the first reinforcing spring 32 is welded to the main spring 34 is fixedly coupled.

The second reinforcement spring 30 is shorter than the length of the first reinforcement spring 32 and is disposed in the opposite direction of the main spring 34 from the first reinforcement spring 32.

And both ends of the second reinforcing spring 30 is welded to the first reinforcing spring 32 is fixedly coupled.

As described above, the conventional elastic module for a mobile terminal is compressed as shown in FIG. 1 (c) when the subbody slides for a predetermined period with respect to the main body, and the main spring 34, the first reinforcing spring 32, and The subbody slides the remaining section by the elastic restoring force of the second reinforcing spring 30.

However, as shown in FIG. 2, the conventional elastic module for a portable terminal in a compressed state has a curved central portion A of the main spring 34 and both end portions B of the first reinforcing spring 32. There is a problem in that stress concentration occurs in the elastic module is damaged or durability is damaged when used for a long time.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object thereof is to provide an elastic module for a portable terminal which can increase the durability by preventing stress from being concentrated on a specific portion during compression.

In order to achieve the above object, the elastic module for a mobile terminal of the present invention comprises: a main spring formed in an arc shape and having hinge coupling parts at both ends; It is formed shorter than the length of the main spring, consisting of a reinforcing spring is laminated and coupled to the main spring, wherein the two or more first bent parts protruding in the opposite direction of the main spring are formed spaced apart from each other, The first bent portions are arranged symmetrically with each other to disperse the stress generated in the main spring when the main spring is compressed.

The reinforcement spring Stacked in contact with the convex outer surface formed of the main spring, the main spring protrudes in the direction of the first bent portion is formed with an elastic portion in contact with the first bent portion, both ends of the reinforcing spring is formed in the elastic portion Each is fixedly coupled.

The curvature of the outer circumferential surface of the elastic portion is equal to the curvature of the inner circumferential surface of the first bent portion.

A first fixing part fixedly coupled to the concave inner side surface of the main spring is formed between the first bent parts so that the reinforcing spring is stacked in contact with the inner side of the main spring.

The reinforcing spring may include: a first reinforcing spring stacked on the main spring, the first bent portion formed, and a second bent portion spaced apart from the first bent portion; A third formed shorter than the length of the first reinforcing spring, stacked in close contact with the opposite direction of the main spring from the first reinforcing spring, and protruding in the opposite direction in which the main spring is disposed to contact the second bent portion; The second reinforcing spring is formed with a bent portion.

The second bent part is spaced apart from each other and disposed symmetrically from side to side, and the third bent part is spaced apart from each other and arranged symmetrically from side to side, and the curvature of the inner circumferential surface of the third bent portion is Same as curvature, both ends of the second reinforcing springs are fixedly coupled to the second bent portions, respectively.

The reinforcing spring may include: a first reinforcing spring stacked on the main spring, the first bent portion formed, and a second bent portion spaced apart from the first bent portion; A third formed shorter than the length of the first reinforcing spring, stacked in close contact with the opposite direction of the main spring from the first reinforcing spring, and protruding in the opposite direction in which the main spring is disposed to contact the second bent portion; Consists of a second reinforcing spring formed bent portion, The second bent part is spaced apart from each other and disposed symmetrically from side to side, and the third bent part is spaced apart from each other and arranged symmetrically from side to side, and the curvature of the inner circumferential surface of the third bent portion is It is equal to the curvature, and a second fixing part fixedly coupled to the first fixing part is formed between the third bent parts so that the second reinforcing spring is stacked on the first reinforcing spring.

The elastic module for a portable terminal according to the present invention has the following effects.

By dispersing the stress generated in the main spring and the reinforcement spring to prevent the stress from being concentrated in a specific region, it is possible to increase the durability of the elastic module.

1 is a view showing an elastic module for a conventional portable terminal,

2 is a view showing the internal stress distribution of the conventional elastic module for a mobile terminal,

3 is a plan view of an elastic module for a portable terminal according to Embodiment 1 of the present invention;

4 is a view showing the internal stress distribution of the elastic module for a mobile terminal according to the first embodiment of the present invention,

5 is a plan view of an elastic module for a portable terminal according to Embodiment 2 of the present invention;

6 is a view showing the internal stress distribution of the elastic module for a mobile terminal according to the second embodiment of the present invention.

Example 1

Figure 3 (a) is a plan view of the elastic module for a portable terminal according to the first embodiment of the present invention, Figure 3 (b) is a view showing a compressed state of the elastic module for a portable terminal of Figure 3 (a), 4 is a diagram showing an internal stress distribution in a state in which the elastic module for a portable terminal is compressed as shown in FIG.

The elastic module for a portable terminal according to the first embodiment of the present invention includes a main spring 110 and

reinforcement springs

120 and 130 as shown in FIG. 3.

The main spring 110 is formed of an arc-shaped leaf spring, the reinforcing springs (120, 130) are laminated on one surface.

Hinge coupling portions 111 are formed at both ends of the main spring 110.

The hinge coupler 111 is hinged to a main body (not shown) and a sub body (not shown) of the portable terminal, respectively.

The main spring 110 is formed with an elastic portion 112 protruding in the direction in which the reinforcing

springs

120 and 130 are stacked.

The elastic portion 112 is formed in a semi-circular shape, the two are spaced apart from each other symmetrically, and are formed adjacent to the hinge coupling portion (111).

That is, as shown in Figure 3, it is formed symmetrically with respect to the dotted line passing through the center of the main spring 110.

The dotted line becomes a symmetric reference line of all the components to be described later.

The

reinforcement springs

120 and 130 may include a first reinforcement spring 120 and a second reinforcement spring 130.

The first reinforcing spring 120 is formed of a leaf spring, is formed shorter than the length of the main spring 110, and is laminated on one surface of the main spring 110, that is, the convex outer surface.

The first reinforcement spring 120 is formed with a first bent portion 121 protruding in the opposite direction of the main spring 110.

The first bent portion 121 is formed in a semi-circular shape, the two are spaced apart from each other symmetrically.

The curvature of the inner circumferential surface of the first bent portion 121 is the same as the curvature of the outer circumferential surface of the elastic portion 112.

Accordingly, the elastic portion 112 and the first bent portion 121 are in close contact with each other.

That is, the elastic portion 112 protrudes convexly toward the first bent portion 121 so that the inner circumferential surface of the first bent portion 121 and the outer circumferential surface of the elastic portion 112 are in contact with each other.

A second bent portion 122 protruding in the opposite direction of the main spring 110 is formed between the first bent portions 121.

The second bent portion 122 is formed in a semicircular shape, the two are spaced apart from each other symmetrically.

Both ends of the first reinforcing spring 120 are welded to the elastic portion 112 to be fixed to the main spring 110.

In FIG. 3, a small circle w marked at both ends of the first reinforcing spring 120 and the contact portion of the elastic part 112 is welded.

The second reinforcement spring 130 is formed of a leaf spring, is formed shorter than the length of the first reinforcement spring 120, the first reinforcement spring 120 in the opposite direction in which the main spring 110 is disposed Stacked in close contact with

The second reinforcement spring 130 is provided with a third bent portion 131 protruding in the opposite direction in which the first reinforcement spring 120 is disposed.

The third bent portion 131 is formed in a semi-circular shape, the two are spaced apart from each other symmetrically.

The curvature of the inner circumferential surface of the third bent portion 131 is the same as the curvature of the outer circumferential surface of the second bent portion 122.

Accordingly, the second bent portion 122 and the third bent portion 131 are in close contact with each other.

That is, the second bent portion 122 protrudes convexly toward the third bent portion 131 so that the inner circumferential surface of the third bent portion 131 and the outer circumferential surface of the second bent portion 122 are in contact with each other.

Both ends of the second reinforcement springs 130 are welded to the second bent portion 122 to be fixed to the first reinforcement springs 120.

The elastic module for a portable terminal as described above is disposed between the main body and the sub body of the portable terminal to semi-automatically slide the sub body with respect to the main body.

That is, when the user slides the sub body for a certain period, the main spring 110 and the reinforcement springs 120 and 130 are compressed as shown in FIG. 3 (b), and the main spring 110 and the main spring 110 are compressed after passing through the maximum compression point. The subbody automatically slides the remaining sections by the elastic restoring force of the reinforcing

springs

120 and 130.

As shown in Figure 4, the stress generated during the compression of the elastic module is dispersed throughout the main spring 110 and the reinforcement spring (120, 130) around the elastic portion 112 and the first bent portion (121). .

The part marked in blue is the part where stress hardly occurs, and the part marked in green is the part where stress occurs, and the closer to red color, the higher the stress concentration.

In the elastic module according to the first embodiment, a portion of the elastic module of the conventional portable terminal is shown in green in the main spring 110 and the reinforcing

springs

120 and 130 in a wider distribution than in FIG. The part marked with is small and light.

As such, when the main spring 110 and the reinforcing

springs

120 and 130 are compressed, the stress is not concentrated on a specific portion and is dispersed, thereby increasing durability of the elastic module.

Meanwhile, the main spring 110 and the reinforcement springs 120 and 130 are not limited to the leaf springs but may be made of wire rod springs.

Example 2

Figure 5 (a) is a plan view of the elastic module for a portable terminal according to a second embodiment of the present invention, Figure 5 (b) is a view showing a compressed state of the elastic module for a mobile terminal of Figure 5 (a), 6 is a diagram showing the internal stress distribution in a state in which the elastic module for a mobile terminal is compressed as shown in FIG.

As shown in FIG. 5, the elastic module for a mobile terminal according to Embodiment 2 of the present invention includes a main spring 210 and reinforcing

springs

220 and 230.

The main spring 210 is formed in an arc shape, and unlike the first embodiment, the elastic portion 112 is not formed separately.

The reinforcement springs 220 and 230 may include a first reinforcement spring 220 and a second reinforcement spring 230.

The first reinforcing springs 220 are stacked in the concavely formed inner side of the main spring 210.

A first bent portion 221 protruding in the opposite direction of the main spring 210 is formed in the first reinforcement spring 220.

The first bent portion 221 is formed in a semi-circular shape, the two are spaced apart from each other symmetrically.

A second bent portion 222 protruding in the opposite direction of the main spring 210 is formed between the first bent portions 221.

The second bent portion 222 is formed in a semi-circular shape, the two are spaced apart from each other symmetrically.

In addition, first fixing

parts

223 and 224 fixedly coupled to the concave inner surface of the main spring 210 are formed between the first bent parts 221.

In detail, the first fixing

parts

223 and 224 are disposed between the main fixing part 223 and the two second bending parts 222 respectively formed between the first bent part 221 and the second bent part 222. The reinforcing fixing part 224 is formed.

The main fixing part 223 is welded to the main spring 210 so that the first reinforcing spring 220 is fixed to the main spring 210.

In the second embodiment, as shown in FIG. 5, only the main fixing part 223 is fixed to the main spring 210 by welding.

As such, when only the main fixing part 223 is fixed to the main spring 210, both ends of the first reinforcing spring 220 are compressed and expanded at the main spring 210 and the reinforcing

springs

220 and 230. It flows along the main spring 220 in contact with the inner surface of the main spring 210.

In some cases, both ends of the first reinforcing spring 220 and the reinforcing fixing part 224 may also be fixed by welding to the main spring 210.

The second reinforcement spring 230 is stacked in close contact with the opposite direction of the main spring 210 in the first reinforcement spring (220).

A third bent portion 231 protruding in the opposite direction in which the main spring 210 is disposed is formed in the second reinforcement spring 230.

A second fixing part 232 is formed between the third bent parts 231.

The second fixing part 232 is welded to the reinforcing fixing part 224 to fix the second reinforcing spring 230 to the first reinforcing spring 220.

As shown in FIG. 5B, the main spring 210 and the reinforcement springs 220 and 230 are compressed when the portable terminal is slid open and closed.

And, as shown in Figure 6, the stress generated during the compression of the elastic module is dispersed at both ends of the main spring 210 and the first fixing part (223, 224) and the second fixing part (232).

Thus, both ends of the main spring 210, the first fixing part (223, 224) and the second fixing part 232 are shown in green without the part displayed in red, and thus stress is not evenly concentrated on a specific part. It can be seen that it is dispersed.

Except for the above-described matters, the same description as in the first embodiment will be omitted.

The elastic module for a mobile terminal of the present invention is not limited to the above-described embodiment, and may be variously modified and implemented within the range in which the technical idea of the present invention is permitted.

The present invention can be applied to a portable terminal, and the display unit of the portable terminal can be semi-automatically sliding from the main body, and the durability can be increased by preventing the concentration of stress on a specific portion.

Claims

A main spring having an arc shape and having hinge coupling parts at both ends thereof;

Is formed shorter than the length of the main spring, made of a reinforcement spring is laminated and coupled to the main spring,

The reinforcing springs are formed to be spaced apart from each other two or more first bent parts protruding in the opposite direction of the main spring,

The first bent portion is arranged symmetrically to each other and the elastic module for a mobile terminal, characterized in that to distribute the stress generated in the main spring when the main spring is compressed.
The method of claim 1,

The reinforcement spring Stacked in contact with the convexly formed outer surface of the main spring,

The main spring is formed in the elastic portion protruding in the direction of the first bent portion in contact with the first bent portion,

Both ends of the reinforcing spring is elastic module for a mobile terminal, characterized in that each is fixedly coupled to the elastic portion.
The method of claim 2,

The curvature of the outer peripheral surface of the elastic portion is the elastic module for a mobile terminal, characterized in that the same as the curvature of the inner peripheral surface of the first bent portion.
The method of claim 1,

A first fixing part fixedly coupled to the concave inner surface of the main spring is formed between the first bent portions, so that the reinforcing spring is stacked to be in contact with the inner side of the main spring.
The method according to any one of claims 1 to 3,

The reinforcement spring,

A first reinforcement spring stacked on the main spring, the first bent portion being formed, and a second bent portion spaced apart from the first bent portion;

A third formed shorter than the length of the first reinforcing spring, stacked in close contact with the opposite direction of the main spring from the first reinforcing spring, and protruding in the opposite direction in which the main spring is disposed to contact the second bent portion; An elastic module for a portable terminal, comprising a second reinforcing spring having a bent portion formed therein.
The method of claim 5,

The second bent part is arranged symmetrically from side to side, spaced apart from each other,

The third bent parts are arranged symmetrically from side to side, spaced apart from each other,

The curvature of the inner peripheral surface of the third bent portion is the same as the curvature of the outer peripheral surface of the second bent portion,

Both ends of the second reinforcement springs are elastic modules for portable terminals, characterized in that each is fixedly coupled to the second bent portion.
The method of claim 4, wherein

The reinforcement spring,

A first reinforcement spring stacked on the main spring, the first bent portion being formed, and a second bent portion spaced apart from the first bent portion;

A third formed shorter than the length of the first reinforcing spring, stacked in close contact with the opposite direction of the main spring from the first reinforcing spring, and protruding in the opposite direction in which the main spring is disposed to contact the second bent portion; Consists of a second reinforcing spring formed bent portion,

The second bent part is arranged symmetrically from side to side, spaced apart from each other,

The third bent parts are arranged symmetrically from side to side, spaced apart from each other,

The curvature of the inner peripheral surface of the third bent portion is the same as the curvature of the outer peripheral surface of the second bent portion,

A second fixing part fixedly coupled to the first fixing part is formed between the third bent parts so that the second reinforcing spring is stacked on the first reinforcing spring.