CN216382219U - Hinge and foldable mobile terminal that closed stroke terminal point and opening stroke terminal point can all be from locking - Google Patents

Abstract

The utility model provides a hinge and a folding mobile terminal, wherein the hinge and the folding mobile terminal can self-lock at a closing stroke end point and an opening stroke end point, the hinge and the folding mobile terminal comprise a shaft, an elastic element, a movable cam and a fixed cam, the movable cam and the fixed cam are matched with each other, the corresponding closing stroke end point and the opening stroke end point are in inclined plane supporting and matching states so that the elastic element can retain potential energy, and a rotation angle limiting structure corresponding to the closing stroke end point is arranged at a joint part of two folding bodies of the folding mobile terminal when the two folding bodies are closed. The utility model can utilize the inclined plane of the cam to support the closing stroke terminal and the opening stroke terminal, so that the spring can still retain potential energy, and the rotating angle corresponding to the closing stroke terminal is limited and moved to the shell of the folding mobile terminal, thereby realizing the self-locking and tight closing state keeping of the spring with the seam width as seen, and the inclined plane of the cam provides compensation for component errors, thereby keeping the delicate appearance of the product.

Description

Hinge and foldable mobile terminal that closed stroke terminal point and opening stroke terminal point can all be from locking

Technical Field

The utility model relates to a hinge of a mobile terminal, which can self-lock at a closing stroke end point and an opening stroke end point. For a single-axis hinge, the opening stroke end point may be an opening rotation angle corresponding to the unfolding of the folding mobile terminal, and for a double-axis hinge, the opening stroke end point may be a rotation opening angle corresponding to the unfolding of the folding mobile terminal, or an opening rotation angle when the folding mobile terminal is turned and opened by 360 °.

Background

For portable terminals such as folding mobile phones and notebooks, such as flexible screen terminals, flip mobile phones and notebook computers, self-locking can be realized through springs and limit positions in the hinges when the terminals are in a flat state. However, in the 0 ° closed state, an extra lock catch is often required to maintain the closed lock, but it is also difficult to maintain the seam width required at the seam between the two folds when the closure is maintained due to manufacturing tolerances of the components.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hinge which can self-lock at the closing stroke end point and the opening stroke end point and can realize that the seam between two folding bodies can keep the required seam width when the applied mobile terminal is folded. Therefore, the utility model adopts the following technical scheme:

the hinge is applied to a folding mobile terminal and comprises a shaft, an elastic element, and a movable cam and a fixed cam which are sleeved outside the shaft and are matched with each other, wherein the fixed cam and the shaft are connected in a sliding mode but cannot rotate relative to the shaft, the movable cam can rotate relative to the shaft, and the elastic element presses the fixed cam onto the movable cam; the foldable mobile terminal is characterized in that the movable cam and the fixed cam are matched with each other corresponding to a closing stroke end point and an opening stroke end point in an inclined plane supporting and matching state, so that the elastic element keeps potential energy, the hinge is provided with a rotation angle limiting structure corresponding to the closing stroke end point and a rotation angle limiting structure corresponding to the opening stroke state, and the rotation angle limiting structures corresponding to the closing stroke end points are arranged at the joint positions of two folded bodies of the foldable mobile terminal when the two folded bodies are closed.

Further, the matching of the movable cam and the fixed cam comprises the matching of an inner cam and an outer cam which surround the shaft; corresponding to the closing stroke end point, the inner layer cam is matched with an inclined plane support, the outer layer cam is matched with a clearance, the inner layer cam is matched with a clearance, and the outer layer cam is matched with an inclined plane support; corresponding to the opening stroke end point, the inner layer cam is matched in a clearance fit mode on the first side, the outer layer cam is matched in an inclined surface supporting fit mode, the inner layer cam is matched in an inclined surface supporting fit mode on the second side, and the outer layer cam is matched in a clearance fit mode; the first side and the second side are two sides in opposite radial directions.

Further, the shaft and the movable cam are respectively connected with a product connecting structure; the shaft is provided with an axial limiting structure, the movable cam leans against the axial limiting structure, the front surface of the movable cam faces the fixed cam, and the elastic element tightly pushes the fixed cam against the movable cam from the back surface of the fixed cam.

A second object of the present invention is to provide a folder type mobile terminal using the above hinge. Therefore, the utility model adopts the following technical scheme:

the folding mobile terminal comprises a first folding body and a second folding body, and is characterized in that the folding mobile terminal is provided with any one of the hinges, the first folding body and the second folding body are rotatably connected through the hinges, and a rotating angle limiting structure corresponding to a closing stroke end point is arranged at a joint part of the first folding body and/or the second folding body when the first folding body and/or the second folding body are closed, so that the first folding body and the second folding body are locked through the matching of the elastic element and the inclined plane support when the first folding body and the second folding body are folded and closed, and a joint gap determined by the rotating angle limiting structure is kept.

For a biaxial hinge, the following technical scheme can be adopted in the utility model:

the utility model provides a hinge that closed stroke end and open stroke end all can be from locking, its is two-axis hinge, its characterized in that two-axis hinge be provided with more than two the hinge, the axle of two hinges is parallel, the movable cam and the intermediate junction frame fixed connection of two hinges, hub connection product connection structure.

Furthermore, the shaft is provided with an axial limiting structure, the middle connecting frame is axially limited by the axial limiting structure through a connecting structure, the front surface of the movable cam faces the fixed cam, and the elastic element tightly supports the fixed cam from the back surface of the fixed cam.

Further, when the opening stroke end point is the opening rotation angle corresponding to the folding mobile terminal when the folding mobile terminal is turned and opened by 360 degrees, the rotation angle limiting structure corresponding to the opening stroke state is arranged at the seam position of the two folding bodies of the folding mobile terminal when the folding mobile terminal is turned and opened by 360 degrees.

For a dual-axis folding mobile terminal, the utility model can adopt the following technical scheme:

the folding mobile terminal comprises a first folding body and a second folding body, and is characterized in that the folding mobile terminal is provided with the double-axis hinge, the first folding body and the second folding body are rotatably connected through the double-axis hinge, and a rotating angle limiting structure corresponding to a closing stroke end point is arranged at a joint part of the first folding body and/or the second folding body when the first folding body and/or the second folding body are closed, so that the first folding body and the second folding body are locked through the matching of the elastic element and the inclined plane support when the first folding body and the second folding body are folded and closed, and a joint gap determined by the rotating angle limiting structure is kept.

By adopting the technical scheme, the cam inclined plane can be used for supporting the closing stroke end point and the opening stroke end point, so that the spring can still retain potential energy, the rotating angle corresponding to the closing stroke end point is limited and moved to the shell of the folding mobile terminal, the seam width is in a closed state which is obtained by self-locking of the spring and is kept tight, the inclined plane of the cam is used for compensating errors of components, and the exquisite appearance of a product is kept.

Drawings

Fig. 1 is an exploded view of the structure of embodiment 1 of the hinge of the present invention.

Fig. 2 is a schematic structural view of a hinge of embodiment 1 of the present invention.

Fig. 3 is a schematic sectional view taken along line a-a of fig. 2 in a closed state.

Fig. 4 is a schematic diagram of the cam control cooperation deployment from the closed stroke end to the open stroke end and back to the closed stroke end for embodiment 1, wherein the 0 ° state is the closing stroke end, and 180 ° is the opening stroke end.

Fig. 5 is a side view of a folder-type mobile terminal employing the hinge embodiment shown in fig. 1 in a flattened state.

Fig. 6 is a side view of a folder-type mobile terminal to which the hinge embodiment of fig. 1 is applied in a closed state.

Fig. 7 is a perspective view of a folder type mobile terminal to which the embodiment of the hinge shown in fig. 1 is applied in a closed state.

Fig. 8 is a schematic structural view of embodiment 2 of the hinge of the present invention.

Fig. 9 is an exploded view of the structure of embodiment 2 of the hinge of the present invention.

Fig. 10 is a perspective view of a folder type mobile terminal according to embodiment 2 of the hinge of the present invention in a closed state.

Fig. 11 is a side view of a folding mobile terminal in a closed state using the hinge embodiment 2 shown in fig. 2.

Fig. 12 is a side view of a folding mobile terminal in a 360 deg. flip open state using the hinge embodiment 2 shown in fig. 2.

Detailed Description

Example 1, uniaxial hinge example, see figures 1-7.

The hinge 203 provided by the utility model has the self-locking closing stroke end point and the self-locking opening stroke end point, and as for the single-shaft hinge, the closing stroke end point corresponds to the state that the folding mobile terminal is closed, and the opening stroke end point corresponds to the state that the folding mobile terminal is bent and opened, and generally two folding bodies of the folding mobile terminal can be in a flattening state.

The hinge comprises a shaft 1, an elastic element 2, a movable cam 3 and a fixed cam 4 which are sleeved outside the shaft and matched with each other, wherein the fixed cam 4 and the shaft 1 are connected in a sliding mode through a flat hole and cannot rotate relative to the shaft 1, the movable cam 3 can rotate relative to the shaft 1, and the elastic element 2 presses the fixed cam 4 on the movable cam 3; the elastic element 2 can be a coil spring or a disc spring.

The single-shaft hinge of the embodiment is applied to a single-shaft folding mobile terminal, the matching between the movable cam 3 and the fixed cam 4 corresponds to a closing stroke end point (closing state) and an opening stroke end point (flattening state) which are both inclined plane supporting matching states, so that the elastic element 2 keeps potential energy in the two states and provides locking force, meanwhile, a rotation angle limiting structure corresponding to the closing stroke end point is moved out of the hinge and is arranged at a joint position of two folding bodies of the folding mobile terminal when the folding bodies are closed, the inclined planes can be utilized to support matching, namely, the central angles of the inclined planes corresponding to the circumferential direction compensate part gaps and errors, and the joint gaps determined by the rotation limiting structure are kept.

The rotation angle limiting structure corresponding to the opening stroke end point (in a flattened state) can be arranged inside the hinge, such as between the shaft 1 and the movable cam 3, and can also be arranged between two folding bodies.

In the embodiment, in order to improve the supporting force and facilitate the force balance, the cooperation of the movable cam 3 and the fixed cam 4 comprises the cooperation of an inner cam and an outer cam which surround the shaft 1. Corresponding to the closing stroke end point (closing state), namely 0 degrees, on the first side 101, the inner layer cam fit IN is the inclined plane support 51 fit, the outer layer cam fit OUT is the clearance fit 61, on the second side 102, the inner layer cam fit is the clearance fit 52, and the outer layer cam fit is the inclined plane support fit 62; corresponding to the opening stroke end point (flattening state), namely 180 degrees, on the first side 101, the inner layer cam is matched into clearance fit 53, the outer layer cam is matched into inclined surface support fit 63, on the second side 102, the inner layer cam is matched into inclined surface support fit 54, and the outer layer cam is matched into clearance fit 64; the first side and the second side are two sides in opposite radial directions. Thereby not only balancing the support, but also not generating interference.

The shaft 1 and the movable cam 3 are respectively connected with product connecting structures 10 and 30; the shaft 1 is provided with an axial limiting structure (such as a step surface) 11, the movable cam 3 leans against the axial limiting structure, the front surface of the movable cam faces the fixed cam 4, and the elastic element 2 tightly pushes the fixed cam 4 against the movable cam 3 from the back surface of the fixed cam 4. Reference numerals 7 and 8 respectively denote a support washer of the elastic member 2 and a lock nut screwed with the shaft 1.

The single-shaft folding mobile terminal is provided with a first folding body 201 and a second folding body 202, the first folding body 201 and the second folding body 202 are rotatably connected through a hinge 203, a joint part of the second folding body 202 when being closed is provided with a rotation angle limiting structure corresponding to a closing stroke end point (a closed state), for example, a limiting bulge 9 on the inner side surface of a shell of the second folding body is arranged, when the first folding body 201 and the second folding body 202 are folded and closed, the shell of the first folding body 201 is contacted with the limiting bulge 9, at the moment, the cam cooperation is in an inclined plane supporting state, the elastic element 2 and the inclined plane supporting cooperation are locked, and a joint gap 300 directly determined by the rotation limiting structure is kept.

Example 2, a two-axis hinge, with reference to figures 8-12 and with reference to figures 1-7. The reference numerals in this embodiment are the same as those in fig. 1 to 7, and represent the same meanings.

In the present embodiment, two hinges described in embodiment 1, each indicated at R, L, are provided in the biaxial hinge 403, and the axes 1 of the two hinges are parallel. The movable cams 3 of the two hinges are fixedly connected with the middle connecting frame 500, and the shaft 1 is connected with the product connecting structure 10. The shaft 1 is provided with an axial limiting structure 11, the intermediate connecting frame 500 is axially limited by the axial limiting structure 11 through a connecting structure 600, a synchronous reverse rotation connecting structure 700 of a double-shaft hinge can be arranged between the connecting structure 500 and the connecting structure 600, the front surface of the movable cam 3 faces the fixed cam 4, and the elastic element 2 tightly pushes the fixed cam 3 on the movable cam 3 from the back surface of the fixed cam 4.

The biaxial hinge of the present embodiment is applied to a biaxial folder type mobile terminal, which includes a first folder 401 and a second folder 402, the first folder 401 and the second folder 402 respectively connecting the product connecting structures 10 of two shafts 1. The joint position of the second folding body 402 when being closed is provided with a rotation angle limiting structure corresponding to a closing stroke end point (closing state), for example, a limiting protrusion 9 on the inner side surface of the shell of the second folding body is provided, when the first folding body 401 and the second folding body 402 are folded and closed, the shell of the first folding body 401 contacts the limiting protrusion 9, at the moment, the cam is matched to be in an inclined plane supporting state, and the elastic element 2 and the inclined plane are matched to be locked, so that the joint gap 300 directly determined by the rotation limiting structure is maintained.

With the biaxial hinge of the present embodiment, the end point of the opening stroke corresponds to the opening rotation angle of the biaxial folding type mobile terminal when the terminal is turned and opened by 360 °. In this embodiment, the rotation angle restricting structure 91 corresponding to the open stroke state is provided to the seam portion of the first folding body 401 when the 360 ° flip open. Reference numeral 301 is a seam when the folder type mobile terminal is opened by being turned 360 °.

The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.

It is to be understood that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the utility model and the above-described drawings are intended to cover non-exclusive inclusions. The terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "inside", "horizontal", "end", "length", "outer end", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. The terms "first" and "second" are also used for brevity of description only and do not indicate or imply relative importance.

Claims (8)

1. The hinge is applied to a folding mobile terminal and comprises a shaft, an elastic element, and a movable cam and a fixed cam which are sleeved outside the shaft and are matched with each other, wherein the fixed cam and the shaft are connected in a sliding mode but cannot rotate relative to the shaft, the movable cam can rotate relative to the shaft, and the elastic element presses the fixed cam onto the movable cam; the foldable mobile terminal is characterized in that the movable cam and the fixed cam are matched with each other corresponding to a closing stroke end point and an opening stroke end point in an inclined plane supporting and matching state, so that the elastic element keeps potential energy, the hinge is provided with a rotation angle limiting structure corresponding to the closing stroke end point and a rotation angle limiting structure corresponding to the opening stroke state, and the rotation angle limiting structures corresponding to the closing stroke end points are arranged at the joint positions of two folded bodies of the foldable mobile terminal when the two folded bodies are closed.

2. The hinge of claim 1 wherein said engagement of said moving cam and said fixed cam comprises engagement of an inner cam and an outer cam about said axis; corresponding to the closing stroke end point, the inner layer cam is matched with an inclined plane support, the outer layer cam is matched with a clearance, the inner layer cam is matched with a clearance, and the outer layer cam is matched with an inclined plane support; corresponding to the opening stroke end point, the inner layer cam is matched in a clearance fit mode on the first side, the outer layer cam is matched in an inclined surface supporting fit mode, the inner layer cam is matched in an inclined surface supporting fit mode on the second side, and the outer layer cam is matched in a clearance fit mode; the first side and the second side are two sides in opposite radial directions.

3. The hinge of claim 1 wherein said shaft and said movable cam are each connected to a product connecting structure; the shaft is provided with an axial limiting structure, the movable cam leans against the axial limiting structure, the front surface of the movable cam faces the fixed cam, and the elastic element tightly pushes the fixed cam against the movable cam from the back surface of the fixed cam.

4. A hinge with self-locking at both the closing stroke end point and the opening stroke end point is a double-shaft hinge, and is characterized in that the double-shaft hinge is provided with two hinges as claimed in claim 1 or 2, the shafts of the two hinges are parallel, moving cams of the two hinges are fixedly connected with an intermediate connecting frame, and the shafts are connected with a product connecting structure.

5. Hinge with self-locking end of closing stroke and end of opening stroke according to claim 4, characterized in that said shaft is provided with an axial stop structure, the intermediate connection frame is axially stopped by said axial stop structure by means of a connection structure, the moving cam is faced with its front side against said fixed cam, said elastic element presses the fixed cam against the moving cam from its back side.

6. The hinge with self-locking at both the closing stroke end point and the opening stroke end point as claimed in claim 4, wherein when the opening stroke end point is an opening rotation angle corresponding to the 360 ° flip opening of the folder type mobile terminal, the rotation angle limiting structure corresponding to the opening stroke state is provided to the seam portion of the two folder bodies of the folder type mobile terminal at the 360 ° flip opening.

7. A foldable mobile terminal comprising a first folding body and a second folding body, wherein the foldable mobile terminal is provided with a hinge according to any one of claims 1, 2 or 3, the first folding body and the second folding body are rotatably connected by the hinge, and a rotation angle limiting structure corresponding to the end point of a closing stroke is arranged at a seam part of the first folding body and/or the second folding body when the first folding body and the second folding body are closed, so that the first folding body and the second folding body are locked by the elastic element and the inclined plane support matching when the first folding body and the second folding body are folded and closed, and a seam gap determined by the rotation limiting structure is maintained.

8. A foldable mobile terminal, comprising a first folding body and a second folding body, characterized in that the foldable mobile terminal is provided with the double-axis hinge of claim 4, the first folding body and the second folding body are rotatably connected through the double-axis hinge, and a rotation angle limiting structure corresponding to the closing stroke end point is arranged at the joint part of the first folding body and/or the second folding body when the first folding body and the second folding body are closed, so that the first folding body and the second folding body are locked through the cooperation of the elastic element and the inclined plane support when the first folding body and the second folding body are folded and closed, and the joint gap determined by the rotation limiting structure is maintained.

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