CN1170409C - magnetic hinge - Google Patents

Abstract

A magnetic hinge comprises an outer sleeve, a fixed magnetic element, a movable magnetic element and a shaft core, wherein the outer sleeve is provided with a cavity for accommodating the fixed magnetic element and the movable magnetic element. In the manufacturing method, the fixed magnetic element can be fixedly arranged in the cavity, so that the fixed magnetic element and the outer sleeve cannot move relatively; the movable magnetic element is fixedly connected with the shaft core and then placed in the cavity. When the outer sleeve rotates relative to the shaft core, the fixed magnetic element is synchronously driven to rotate relative to the movable magnetic element. In design, the magnetic hinge can be positioned in two stable states by arranging the movable magnetic element and the fixed magnetic element in pairs and facing each other with the same polarity: when the magnetic hinge is positioned in the first stable state, the movable magnetic element is positioned on one side of the fixed magnetic element; when the magnetic hinge is positioned in the second stable state, the movable magnetic element is positioned at the other side of the fixed magnetic element.

Description

magnetic hinge

Technical field

The present invention relates to a hinge (Axial Magnetic hinge), in particular to a hinge with magnetism.

Background technique

The current penetration rate of mobile phones (or mobile phones) is quite high, almost reaching the level of one mobile phone for everyone. Its changeable appearance and complex functions often make consumers dizzy. As far as the appearance design of the current mobile phone is concerned, it can generally be divided into three types: coverless type, flip type and folding type. Once the cover is lifted, the cover is coupled to the body through a hinge, and the cover covers the buttons during standby, and the cover is opened only when it is needed. Please refer to FIG. 1 , which shows a schematic diagram of a clamshell mobile phone. The mobile phone 100 includes two parts: a body 120 and a flip cover 140. When the flip cover 140 is opened, it can make and receive calls or send and receive text messages. When the flip cover 140 is closed, the buttons can be covered to prevent the buttons from being accidentally pressed or polluted.

Please refer to FIG. 2A , which shows a schematic diagram of the operation of flipping the mobile phone. Because the hinge 270 connecting the body 120 and the flip cover 140 on the mobile phone has been specially designed, when the closed flip cover 140 is to be opened, if the opening angle of the flip cover 140 is less than the critical angle α, the hand is released, and the flip cover 140 is opened. The cover 140 will automatically return to the closed state along the direction A; if the flip cover 140 is opened until the opening angle is greater than the critical angle α and then released, the flip cover 140 will automatically open along the direction B to the open state. On the other hand, when the opened flip cover 140 is to be closed, if the opening angle of the flip cover 140 is greater than the critical angle α, the hand is released, and the flip cover 140 will automatically return to the open state along the direction B; When the cover 140 is closed until the opening angle is less than the critical angle α and then the hand is released, the flip cover 140 will automatically close along the direction A to the closed state. Simply put, the special design of the hinge 270 makes the flip cover only stable in two positions, that is, the flip cover 140 will be positioned in two stable states, the first stable state is the flip cover is in the closed position, and the second stable state is the flip cover is in the closed position. The lid is in an open position, as shown in Figure 2B. The above-mentioned special design of the hinge 270 is not only applied to clamshell mobile phones, but also to foldable mobile phones. However, most of the existing mobile phone hinges use elastic elements such as springs or reeds as the source of torque. Due to the congenital defect of elastic fatigue in the elastic elements, the hinges are prone to insufficient recovery force or loose lid closure after a period of use. problem that needs to be overcome.

Contents of invention

The purpose of the present invention is to provide a magnetic hinge to solve the elastic fatigue problem of the traditional hinge.

In order to solve the above problems, a magnetic hinge is provided, which can be positioned in a first stable state or a second stable state. The magnetic hinge includes: an outer casing, the outer casing has a cavity; a shaft core is arranged in the cavity ; a fixed magnetic element, fixed in the cavity; and a movable magnetic element, arranged in the cavity and sleeved with the cavity so that the movable magnetic element can rotate on the axis, wherein the The movable magnetic element and the fixed magnetic element are configured in pairs, and the movable magnetic element and the fixed magnetic element face each other with the same polarity; wherein, when the magnetic hinge is positioned in the first stable state, the movable magnetic element Located on one side of the fixed magnetic element, the movable magnetic element is located on the other side of the fixed magnetic element when the magnetic hinge is positioned in the second stable state.

The present invention also provides a magnetic hinge, which comprises: a fixed magnetic element; a movable magnetic element; wherein, the movable magnetic element is arranged in pairs with the fixed magnetic element, when the movable magnetic element is opposite to When the fixed magnetic element rotates, the magnetic hinge can rotate due to the effect of magnetism; an outer casing, the outer casing has a cavity, the fixed magnetic element is fixed in the cavity; and a shaft core is arranged in the cavity Inside, the movable magnetic element is arranged in the cavity and sleeved with the shaft core, and can rotate relative to the outer casing with the shaft core as the center.

Further speaking, the magnetic hinge includes a casing, a fixed magnetic element, a movable magnetic element and a shaft core, and the casing has a cavity for accommodating the fixed magnetic element and the movable magnetic element. In practice, the fixed magnetic element can be fixed in the cavity, so that the fixed magnetic element and the outer casing cannot move relative to each other; the movable magnetic element is fixedly connected to the shaft core and placed in the cavity. When the outer casing rotates relative to the shaft core, it will synchronously drive the fixed magnetic element to rotate relative to the movable magnetic element. When designing, the movable magnetic element and the fixed magnetic element are arranged in pairs and face each other with the same polarity (for example, both are N poles), so that the magnetic hinge can be stabilized at two positions, and the magnetic hinge can be positioned at two positions. Stable state: when the magnetic hinge is positioned in the first stable state, the movable magnetic element is located on one side of the fixed magnetic element; when the magnetic hinge is positioned in the second stable state, the movable magnetic element is positioned on the other side of the fixed magnetic element.

Description of drawings

Figure 1 is a schematic diagram of a clamshell mobile phone;

FIG. 2A is a schematic diagram of the operation of flipping the mobile phone;

FIG. 2B is a situation where the flip cover in FIG. 2A is positioned at a closed position or an open position;

Fig. 3 is an exploded view of a mobile phone body, flip cover and magnetic hinge provided by Embodiment 1 of the present invention;

Figure 4A is a side view of the magnetic hinge when the flip cover in Figure 3 is closed;

Fig. 4B is a side view of the magnetic hinge when the cover is opened in Fig. 3;

Fig. 5 is an exploded view of the magnetic hinge in Fig. 3;

Fig. 6 is a schematic diagram of the assembled magnetic hinge in Fig. 5;

Fig. 7A is a schematic diagram before the assembly of the movable magnetic element and the shaft core in Fig. 5;

Fig. 7B is a schematic diagram of the assembly of the movable magnetic element and the shaft core in Fig. 5;

8A is a schematic diagram of the relative position between the movable magnetic element and the fixed magnetic element when the magnetic hinge is stable in the first stable state;

Figure 8B is a schematic diagram of the relative position between the movable magnetic element and the fixed magnetic element when the shaft core is rotated clockwise to a position of 45 degrees;

8C is a schematic diagram of the relative position between the movable magnetic element and the fixed magnetic element when the shaft core is at a critical angle;

Fig. 8D is a schematic diagram of the relative position between the movable magnetic element and the fixed magnetic element when the shaft core is rotated clockwise to a position of 135 degrees;

8E is a schematic diagram of the relative position between the movable magnetic element and the fixed magnetic element when the magnetic hinge is stable in the second stable state;

Fig. 9 is a schematic diagram of the configuration of the fixed magnetic element and the movable magnetic element provided by the second embodiment of the present invention;

Fig. 10A is an exploded view of the magnetic hinge provided by Embodiment 3 of the present invention;

Fig. 10B is an exploded view of the shaft core, the movable magnetic element and the fixed magnetic element in Fig. 10A.

Detailed ways

Embodiment one

Please refer to FIG. 3 , which shows an exploded view of a mobile phone body, flip cover and magnetic hinge according to Embodiment 1 of the present invention. The body 320 and the flip cover 340 can be coupled to each other through a magnetic hinge 370 . When the flip cover 340 rotates, the cover of the magnetic hinge 370 also rotates synchronously relative to the axis, so that the flip cover 340 can be opened or closed relative to the body 320 . Next, please refer to FIG. 4A , which shows a side view of the magnetic hinge 370 when the flip cover 340 is closed. The magnetic hinge 370 includes a casing 410 and a shaft core 450 , and the casing 410 can rotate relative to the shaft core 450 . In terms of practice, the cover 410 can be fixedly connected to the flip cover 340, and the shaft core 450 can be fixed to the body 320. After the assembly is completed, the flip cover 340 can be rotated relative to the body 320. The side S of the flip cover 340 before and after opening The positions differ by about 180 degrees, as shown in FIG. 4B . It should be noted that, since the magnetic hinge 370 uses magnetic force instead of the elastic element to provide the restoring force of the traditional hinge, there is no problem of elastic fatigue.

Next, please refer to FIG. 5 , which shows an exploded view of the magnetic hinge. The magnetic hinge 370 may include an outer casing 410, a shaft core 450, a fixed magnetic element 520 and a movable magnetic element, etc. The outer casing 410 is provided with a cavity 415 for accommodating the fixed magnetic element 520 and the movable magnetic element, wherein the movable magnetic element Meaning that it can rotate relative to the housing 410 , fixed magnetic means that it cannot rotate relative to the housing 410 . In practical applications, the fixed magnetic element 520 is, for example, a combination of magnetic bodies 55 , 56 , 57 , and 58 , which can be fixed in the cavity 415 and rotate along the axis A following the casing 410 . The movable magnetic element is, for example, a combination of magnetic bodies 51 , 52 , 53 , and 54 , which can be fixedly connected to the shaft core 450 and followed by the shaft core 450 to be fixedly connected to the body 320 . The movable magnetic element is fixedly connected to the shaft core 450 and placed into the cavity 415, and then the fixed magnetic element 520 is placed into the cavity. During operation, the cover 410 rotates relative to the shaft core 450 due to the opening and closing of the flip cover 340 , which also synchronously drives the fixed magnetic element 520 to rotate relative to the movable magnetic element. Therefore, through the arrangement of the magnetic poles of the movable magnetic element and the fixed magnetic element 520, the jacket 410 can be stabilized at two rotation angles, and the magnetic hinge can be positioned at the first stable state or the second stable state. Please refer to the magnetic hinge after assembly. Referring to FIG. 6 , please pay attention to the folded portion 603 at the tail end of the jacket 410 , these designs can prevent the fixed magnetic element from coming out of the cavity 415 .

Next, please refer to FIG. 7A , which shows a schematic view before the movable magnetic element and the shaft core are assembled. The movable magnetic element can be composed of magnetic bodies 51, 52, 53, and 54. Each magnetic body has two magnetic poles, and the magnetic poles on the same surface of each adjacent magnetic body are opposite in polarity. Through the phenomenon of opposite sex attraction, four The magnetic body is stably combined with the shaft core 450 . For example, if the magnetic pole 511 of the magnetic body 51 is an N pole, then the magnetic pole 521 of the magnetic body 52 should be an S pole, the magnetic pole 531 of the magnetic body 53 should be an N pole, and the magnetic pole 541 of the magnetic body 54 should be an S pole. Since each magnetic body has two opposite magnetic poles, the other magnetic pole 512 of the magnetic body 51 is an S pole, the other magnetic pole 522 of the magnetic body 52 is an N pole, and the other magnetic pole 532 of the magnetic body 53 is an S pole. , The other magnetic pole 542 of the magnetic body 54 is an N pole, as shown in FIG. 7B .

Since the hinges used in mobile phones must meet the design requirements of enabling the automatic opening and closing of the flip cover or the folding part, there will be a critical angle (such as 90 degrees) in the design of the hinge. When the rotation angle of the core is less than the critical angle, if the external force disappears at this time, the magnetic force between the fixed magnetic element and the movable magnetic element will drive the flip cover 340 to automatically return to the first stable position before rotation (such as the 0 degree position); On the contrary, if the external force disappears when the rotation angle of the flip cover 340 relative to the axis is greater than the critical angle, the hinge will automatically rotate to the second stable position (for example, the 180-degree position). Next, please refer to FIG. 8A , which is a schematic diagram illustrating the relative positions of the movable magnetic element and the fixed magnetic element when the magnetic hinge is stable in the first stable state. As mentioned above, the fixed magnetic element 520 can be a combination of magnetic bodies 55, 56, 57, 58, and the magnetic poles 551, 561, 571, 581 in the figure are respectively the magnetic bodies 55, 56, 57, 58 that can face The magnetic poles of the movable magnetic element (that is, the magnetic poles close to the movable magnetic element), and the polarity arrangement of each magnetic pole are shown in the figure, and will not be described again. At this time, because the magnetic pole 551 and the magnetic pole 512, the magnetic pole 561 and the magnetic pole 522, the magnetic pole 571 and the magnetic pole 532, and the magnetic pole 581 and the magnetic pole 542 are opposite to each other, through the physical phenomenon of opposite sex attraction, the fixed magnetic element and the movable The movable magnetic element is stable in these states, which is called the first stable state. At this time, the shaft core to which the movable magnetic element is fixed is located at the position of 0 degrees. If the cover 340 is opened to rotate the cover 410 clockwise, the magnetic pole 542 will be close to the magnetic pole 551 and away from the magnetic pole 581. Since the magnetic pole 551 and the magnetic pole 542 have a repulsive force and there is an attractive force between the magnetic pole 581 and the magnetic pole 542, if the external force disappears at this time , through the action of magnetic force, the magnetic pole 542 will return to the stable position before the rotation. FIG. 8B shows that when the outer cover 410 is rotated clockwise to less than the critical angle (for example: when the position is 45 degrees), the movable magnetic element and the fixed magnetic element The schematic diagram of the relative position between them, the arrows indicate the turning of the jacket 410 when the external force disappears. When continuing to rotate the overcoat 410 clockwise to a position of 90 degrees, since the magnetic pole 551 and the magnetic pole 542, the magnetic pole 561 and the magnetic pole 512, the magnetic pole 571 and the magnetic pole 522, and the magnetic pole 581 and the magnetic pole 532 are all facing each other with the same polarity, theoretically if two If the repulsive force between the two magnetic bodies is equal, then the movable magnetic element and the fixed magnetic element will also be in a stable state at this time, but this is impossible in practice. As long as the repulsive force is slightly unbalanced, the magnetic force will push the movable magnetic element. Rotate clockwise or counterclockwise, as shown in FIG. 8C , so the 90-degree angular position of the shaft core can be called the critical angle.

If force is continuously applied to the jacket 410 to make it rotate clockwise and exceed the critical angle, then if the external force disappears, the magnetic pole 542 will be subjected to the repulsive force of the magnetic pole 551 and the attraction force of the magnetic pole 561, and the magnetic pole 542 will continue to rotate clockwise, as shown in Figure 8D That is, when the shaft core is rotated clockwise to a position greater than the critical angle (eg: 135 degrees), the relative position between the movable magnetic element and the fixed magnetic element is shown. The arrow indicates the direction of the shaft core when the external force disappears. Finally, when the magnetic pole 542 leaves the magnetic pole 551 and reaches the magnetic pole 561, since the magnetic pole 551 and the magnetic pole 532, the magnetic pole 561 and the magnetic pole 542, the magnetic pole 571 and the magnetic pole 512, and the magnetic pole 581 and the magnetic pole 522 are opposite to each other, so the fixed magnetic The element and the movable magnetic element can be stabilized in these states, which is called the second stable state. At this time, the shaft core fixedly connected to the movable magnetic element is at a position of 180 degrees, as shown in FIG. 8E .

From the above description, it can be known that when the cover rotates relative to the shaft core, it can only be stabilized at the 0-degree angle position or the 180-degree angle position. The flip cover can only be stabilized in two states of closing or opening, so that the flip cover has the characteristics of automatic opening and closing.

Embodiment two

Of course, the structure of the movable magnetic element and the fixed magnetic element can also be very simple, and the above functions can also be achieved by using two magnetic bodies facing each other with the same polarity. Please refer to FIG. 9 , which shows a schematic diagram of the configuration of the fixed magnetic element and the movable magnetic element according to the second embodiment of the present invention. The fixed magnetic element is, for example, a magnetic body 91 affixed to the outer cover of the magnetic hinge, and the movable magnetic element is, for example, a magnetic body 92 affixed to the shaft core of the magnetic hinge. face each other. The shaft core and the cover of the magnetic hinge can be respectively coupled to the body and flip cover of the mobile phone, and when the flip cover rotates relative to the body, the movable magnetic element and the fixed magnetic element can be driven to rotate relative to each other. Assume that the magnetic body 92 is at an angle of 0 degrees when the flip cover is closed. If the opening angle of the flip cover is less than the critical angle (about 90 degrees), the external force disappears, and the flip cover will be pushed back to the closed state through the repulsive force between the two magnetic bodies. Conversely, if the opening angle of the flip cover is greater than the critical angle, the external force disappears, and the flip cover will be continuously opened until it stabilizes in the open state through the repulsive force between the two magnetic bodies. At this time, the magnetic body 92 is approximately at an angle of 180 degrees. Simply put, the magnetic hinge can only be positioned in two stable states. The first stable state is that the magnetic body 92 is located at an angle of 0 degrees. At this time, the magnetic body 92 is located on one side of the magnetic body 91; the second stable state is that the magnetic body 92 Located at an angle of 180 degrees, the magnetic body 92 is located on the other side of the magnetic body 91 at this time, as shown in FIG. 9 .

Embodiment three

Please refer to FIG. 10A , which shows an exploded view of the magnetic hinge according to Embodiment 3 of the present invention. The shaft core 1100 is equipped with movable magnetic elements 1200, 1400 and fixed magnetic elements 1300, the movable magnetic elements 1200, 1400 are fixed on the shaft core 1100, and the fixed magnetic element 1300 is rotatably coupled with the shaft core 1100 catch. After combining the shaft core 1100 and each magnetic element, put it into the casing 1500 , the fixed magnetic element 1300 can be positioned in the casing and can rotate relative to the shaft core 1100 . When the flip cover drives the outer casing to rotate relative to the shaft core 1100, the fixed magnetic element 1300 fixed on the outer casing is also driven synchronously to rotate relative to the movable magnetic element 1200, 1400. Through proper polarity arrangement, the shaft core will only Stabilized at two rotation angles.

Next, please refer to FIG. 10B , which shows an exploded view of the shaft core 1100 , the movable magnetic elements 1200 , 1400 and the fixed magnetic element 1300 . The movable magnetic element 1200 can be composed of magnetic bodies 1210, 1220, 1230, 1240, the fixed magnetic element 1300 can be composed of magnetic bodies 1310, 1320, 1330, 1340, the movable magnetic element 1400 can be composed of magnetic bodies 1410, 1420, 1430, 1440, The magnetic bodies of each magnetic element are combined through the arrangement of magnetic poles that attract each other. These combination methods have been described in detail in Embodiment 1 and will not be repeated here. Assuming that when the shaft core 1100 is in the first stable state, the magnetic bodies 1210, 1410 attract each other to the magnetic body 1310, the magnetic bodies 1220, 1420 attract each other to the magnetic body 1320, the magnetic bodies 1230, 1430 attract each other to the magnetic body 1330, The magnetic bodies 1240 , 1440 attract each other with the magnetic body 1340 , and the shaft core 1100 can be stabilized in the second stable state after rotating 180 degrees.

It should be noted that, the magnetic bodies exemplified in the above embodiments of the present invention are, for example, magnets (permanent magnets or electromagnets) or other magnetic substances, all of which are applicable to the design specifications of the present invention.

In summary, although the present invention has been disclosed in conjunction with the above preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make various changes without departing from the spirit and scope of the present invention. and modification, so the protection scope of the present invention should be defined by the claims.

Claims (17)

1. a magnetic hinge can be positioned one first stable state or one second stable state, and this magnetic hinge comprises:

One overcoat, this overcoat has a cavity;

A core is arranged in this cavity;

One stationary magnetic element is fixedly arranged in this cavity; An and movable magnetic element, be arranged in this cavity and with this cavity socket so that this movable magnetic element can rotate by this core, wherein, configuration and this movable magnetic element and this stationary magnetic element are to face mutually with same polarity in pairs for this movable magnetic element and this stationary magnetic element;

Wherein, this movable magnetic element was positioned at a side of this stationary magnetic element when this magnetic hinge was positioned this first stable state, and this movable magnetic element was positioned at the opposite side of this stationary magnetic element when this magnetic hinge was positioned this second stable state.

2. magnetic hinge as claimed in claim 1, wherein this movable magnetic element is in this first stable state and this second and differs 180 degree approximately in the position when steady.

3. magnetic hinge as claimed in claim 1, wherein this movable magnetic element is a magnetic.

4. magnetic hinge as claimed in claim 3, wherein this magnetic is a magnet.

5. magnetic hinge as claimed in claim 4, wherein this magnet is permanent magnet.

6. magnetic hinge as claimed in claim 4, wherein this magnet is electromagnet.

7. magnetic hinge as claimed in claim 1, wherein this stationary magnetic element is a magnetic.

8. magnetic hinge as claimed in claim 7, wherein this magnetic is a magnet.

9. magnetic hinge as claimed in claim 8, wherein this magnet is permanent magnet.

10. magnetic hinge as claimed in claim 8, wherein this magnet is electromagnet.

11. a magnetic hinge, this magnetic hinge comprises:

One stationary magnetic element;

One movable magnetic element;

Wherein, this movable magnetic element is to dispose in pairs with this stationary magnetic element, and when this movable magnetic element rotated with respect to this stationary magnetic element, this magnetic hinge can rotate owing to the effect of magnetic;

One overcoat, this overcoat has a cavity, and this stationary magnetic element is fixedly arranged in this cavity; And

A core is arranged in this cavity, and this movable magnetic element is arranged in this cavity and connects with this core retainer plate, and can this core be that the center is with respect to this overcoat rotation.

12. magnetic hinge as claimed in claim 11, wherein this overcoat this axle center rotation relatively is so that this stationary magnetic element is with respect to this movable magnetic element rotation.

13. magnetic hinge as claimed in claim 11, wherein this overcoat is to be socketed on a movable part.

14. magnetic hinge as claimed in claim 13, wherein this movable part is the flip of a mobile phone.

15. magnetic hinge as claimed in claim 13, wherein this movable part is the body of a mobile phone.

16. magnetic hinge as claimed in claim 11, wherein this core is fixed in a fixture.

17. magnetic hinge as claimed in claim 16, wherein this fixture is the body of a mobile phone.

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