CN111314514A - A lifting device and electronic equipment - Google Patents

Abstract

The present invention provides a lifting device and electronic equipment, wherein the lifting device includes a driving mechanism, a functional module, a flexible circuit board and a support member, and two ends of the flexible circuit board are respectively connected to the functional module and the supporting member. The circuit board of an electronic device is connected, and the driving mechanism is connected with the functional module to drive the functional module to move; the flexible circuit board has a bending portion, and the supporting member is respectively connected to the bending portion and the drive mechanism is connected. The technical solution provided by the embodiment of the present invention solves the problem that the flexible circuit board is easily damaged due to being pulled by an external force in the existing lifting structure.

Description

A lifting device and electronic equipment

technical field

The present invention relates to the field of communication technologies, and in particular, to a lifting device and electronic equipment.

Background technique

At present, lift-type functional modules have become a common structural form in electronic devices, such as telescopic cameras and telescopic receivers in mobile phones. In the existing electronic equipment, the lift-type functional module is usually connected to the circuit board of the electronic equipment through a flexible printed circuit (FPC). The movement of the module will drive the flexible circuit board to also move, causing the flexible circuit board to be easily damaged due to the pulling of external force, affecting the service life of the flexible circuit board.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a lifting device and an electronic device to solve the problem that the flexible circuit board is easily damaged due to being pulled by an external force in the existing lifting structure.

In the first aspect, an embodiment of the present invention provides a lifting device, which is applied to electronic equipment, and includes a driving mechanism, a functional module, a flexible circuit board, and a support member. Two ends of the flexible circuit board are respectively connected to the functional module. connected with the circuit board of the electronic device, and the driving mechanism is connected with the functional module to drive the functional module to move; the flexible circuit The bending part is connected with the driving mechanism.

In a second aspect, an embodiment of the present invention further provides an electronic device, including the lifting device as described in the first aspect.

According to the technical solution provided by the embodiment of the present invention, the functional module can move under the driving of the driving mechanism, so that the flexible circuit board connected to the functional module also moves; the driving mechanism supports the movement of the functional module in the process of driving the functional module. The flexible circuit board can support the bending part of the flexible circuit board, which can reduce the tension on the flexible circuit board, prevent the flexible circuit board from being damaged by external force during the movement, and ensure the integrity of the flexible circuit board. , and can also prolong the service life of the flexible circuit board.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a structural diagram of a lifting device provided by an embodiment of the present invention;

Fig. 2 is the structure diagram when the function module in the lifting device provided by Fig. 1 is extended out of the casing;

3 is a structural diagram of another lifting device provided by an embodiment of the present invention;

FIG. 4 is a structural diagram of the lifting device provided in FIG. 3 when the functional module extends out of the casing and an enlarged diagram of a bent portion of the flexible circuit board.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

An embodiment of the present invention provides a lifting device, and the lifting device is applied to electronic equipment. Please refer to FIG. 1 , the lifting device includes a driving mechanism 11, a functional module 12, a flexible circuit board 13 and a support member 14. Both ends of the flexible circuit board 13 are respectively connected to the functional module 12 and the circuit board 21 of the electronic device. The driving mechanism 11 is connected to the functional module 12 for driving the functional module 12 to move. The flexible circuit board 13 has a bending portion 130 , and the support member 14 is respectively connected to the bending portion 130 and the functional module 12 .

In the embodiment of the present invention, the functional module 12 is disposed opposite to the circuit board 21 , the flexible circuit board 13 is connected between the functional module 12 and the circuit board 21 , and a bending portion 130 is formed. The functional module 12 can move under the driving of the driving mechanism 11 , so that the flexible circuit board 13 connected to the functional module 12 also moves. When the driving mechanism 11 drives the functional module 12 to ascend or descend, the supporting member 14 can support the bending portion 130 . In this way, when the flexible circuit board 13 is driven by the functional module 12 to move, the support member 14 is in contact with the bending portion 130 of the flexible circuit board 13 and supports the bending portion 130 , thereby reducing the flexibility of the flexible circuit board 13 . The tensile force on the circuit board 13 prevents the flexible circuit board 13 from being damaged by external force during movement, ensures the integrity of the flexible circuit board 13 and prolongs the service life of the flexible circuit board 13 .

It should be noted that the support member 14 may be disposed on the driving mechanism 11 , or may be a separate device located in the housing of the electronic device, or disposed on other structures inside the electronic device. For example, if the support member 14 is disposed on the driving mechanism 11, the support member 14 may move up or down synchronously with the functional module 12. During the movement of the functional module 12, or the functional module 12 is stationary In this state, the support member 14 may always be in contact with the bottom of the bent portion 130 of the flexible circuit board 13 and exert an upward supporting force on the bottom of the bent portion 130 .

Alternatively, when the functional module 12 is located in the housing of the electronic device, the supporting member 14 is in contact with the bottom of the bending portion 130 , and when the functional module 12 is moved to protrude out of the housing, the supporting member 14 can be moved to drive the bending The portion 130 forms three bends, as shown in FIG. 2 . In this way, in the case where the flexible circuit board 13 is double-layered or multi-layered, the support member 14 can effectively avoid the flexible circuit board of the innermost layer (that is, the layer farthest from the support member 14 in FIG. 1 and FIG. 2 ). 13 bulging phenomenon occurs, preventing the flexible circuit board 13 from being damaged due to the bulging, and ensuring the integrity and service life of the flexible circuit board 13 more effectively.

In one implementation of the embodiment of the present invention, the flexible circuit board 13 includes a first layer 131 and a second layer 132, and both the first layer 131 and the second layer 132 are connected to the functional module 12 and the circuit board 21; The layer 131 includes a first bending portion (not shown), the second layer 132 includes a second bending portion (not shown), and the support member 14 is located between the first bending portion and the second bending portion, and the first layer 131 The part of the second layer 132 except the first bending part is adhered to the part of the second layer 132 except the second bending part.

Please refer to FIG. 3 and FIG. 4 in detail, the support member 14 is sandwiched between the first bending portion and the second bending portion, and the first bending portion and the second bending portion can be separated by the support member 14, thereby When the flexible circuit board 13 is stretched and moved by the functional module 12 , the friction force between the first bending part and the second bending part can be reduced, and the first layer 131 of the flexible circuit board 13 and the Risk of frictional damage to the second layer 132.

In this embodiment, the second layer 132 is closer to the driving mechanism 11 than the first layer 131 . As shown in FIG. 4 , the first layer 131 is located inside the bending portion 130 . It should be noted that when the flexible circuit board includes two layers, the central angle corresponding to the bending portion of the inner flexible circuit board is smaller, and when the lengths of the two layers of flexible circuit boards are the same, the central angle is also smaller. The inner flexible circuit board is more prone to bulging. In this embodiment, however, the support member 14 is sandwiched between the first bending portion of the first layer 131 and the second bending portion of the second layer 132 , and the first bending portion of the first layer 131 is bent by the support member 14 . The first layer 131 of the flexible circuit board 13 can be prevented from bulging, so as to ensure the smoothness of the sliding process of the first layer 131 and prevent the first layer 131 from being damaged due to bulging. The service life of the flexible circuit board 13 is prolonged.

In addition, the support member 14 may be a cylindrical support rod, so as to ensure the smooth sliding of the first layer 131 and the second layer 132 of the flexible circuit board 13 .

Alternatively, please refer to FIG. 1 and FIG. 2, in another embodiment of the present invention, the flexible circuit board 13 also includes a first layer (not marked) and a second layer (not marked), the first layer and all The second layer is connected to the functional module 12 and the circuit board 21. The first layer includes a first bending portion, the second layer includes a second bending portion, and the support member 14 is located between the first bending portion and the second bending portion. The side of the bent portion that is far away from the functional module 12 and close to the driving mechanism 11 .

As shown in FIG. 1 , when the functional module 12 is located in the casing of the electronic device, the support member 14 may be in contact with the bottom of the first bent portion of the first layer (the layer closer to the driving mechanism 11 ), and It can provide upward supporting force to the first bending part and the second bending part; as shown in FIG. 2 , when the functional module 12 moves out of the casing, the support member 14 can move synchronously with the driving mechanism 11 , and can push up the first bending part and the second bending part, so as to drive the first bending part and the second bending part to form three bends, so as to avoid the first layer of the flexible circuit board 13 Or the second layer is bulged, which can prevent the first layer or the second layer from being damaged due to bulging, and prolong the service life of the flexible circuit board 13 .

Specifically, during the movement of the functional module 12, the bending portion 130 of the flexible circuit board 13 changes between the first state and the second state; in the first state, the bending portion 130 forms a bend, In the second state, the bent portion 130 forms three bends.

For example, when the flexible circuit board 13 is a single layer, the support member 14 can also be arranged in the manner shown in FIG. 1 and FIG. The bending portion 130 of the flexible circuit board 13 can be driven to form three bends, so as to better support the flexible circuit board 13 and prevent the flexible circuit board 13 from being damaged by the pulling of the functional module 12 .

In addition, the support member 14 may be disposed in the middle of the bent portion 130 of the flexible circuit board 13 . For example, when the support member 14 moves to the position shown in FIG. 2 , the support member 14 can form three bends on the bent portion 130 of the flexible circuit board 13, and the support member 14 is located in the middle of the middle bend, thereby making The force of the flexible circuit board 13 is more balanced, and the support member 14 can better support the flexible circuit board 13 .

Optionally, the support member 14 is a support rod, for example, the support member 14 may be a cylindrical support rod, so as to avoid scratch damage to the flexible circuit board 13 caused by the support rod. In addition, in the extending direction of the support rod, the length of the bent portion 130 is less than or equal to the length of the support rod. In this way, all the bending parts 130 can be in contact with the support rods, the force bearing surface of the bending parts 130 is wider, and the support rods can more effectively support the flexible circuit board 13 .

1 to 4 , the driving mechanism 11 includes a driving member 111 and a transmission shaft 112 connected to the driving member 111 . Optionally, the driving member 111 can be a motor, and the transmission shaft 112 can be a threaded shaft. The operation of the motor can drive the threaded shaft to rotate, thereby driving the functional module 12 connected to one end of the threaded shaft to extend out of the housing or retract the housing. in vivo. Of course, the transmission shaft 112 can also be in other structural forms. For example, the transmission shaft 112 includes a gear and a lift arm meshed with the gear, and the forward or reverse rotation of the gear can also drive the lift arm to rise or fall.

It should be noted that the support member 14 is disposed on the transmission shaft 112 , and the support member 14 will not rotate around the transmission shaft 112 during the process of the transmission shaft 112 being driven by the motor to rotate. For example, the support 14 may include a connecting body sleeved on the transmission shaft 112 and a supporting rod protruding from one side of the connecting body. The rotation of the transmission shaft 112 can drive the connecting body and the supporting rod along the extending direction of the transmission shaft 112 rising or falling, so as to support the bent portion 130 of the flexible circuit board 13 .

Optionally, referring to FIG. 4 , the support member 14 includes a baffle plate 141 and a protruding member 142 disposed on the baffle plate 141 . The baffle plate 141 is connected to the transmission shaft 112 , and the protruding member 142 is used for connecting the flexible circuit board 13 . The bent portion 130 plays a supporting role, and the protruding direction of the protruding member 142 is perpendicular to the extending direction of the baffle 141 . For example, the protruding piece 142 and the baffle 141 can be designed in an L-shape, and in the protruding direction of the protruding piece 142, the length of the bent portion 130 can be less than or equal to the length of the protruding piece 142, ensuring the bending The contact area between the portion 130 and the protruding member 142 is reduced, so that the protruding member 142 can more effectively support the bent portion 130 of the flexible circuit board 130 . In addition, the baffle 141 may include a body sleeved on the transmission shaft 112 and an extension plate protruding from one side of the main body, so as to prevent the baffle 141 and the protruding member 142 from rotating around the transmission shaft 112 .

In the embodiment of the present invention, the functional module 12 may be a camera module or a receiver module. In this way, the camera module and the receiver module can be protruded out of the casing when needed, and retracted into the casing when not in use, thereby avoiding opening holes on the display screen of the electronic device, which is more conducive to electronic Devices are developing towards a high screen-to-body ratio.

An embodiment of the present invention also provides an electronic device, which includes all or part of the technical features in the above-mentioned embodiments of the lifting device, and can achieve the same technical effect. To avoid repetition, details are not described here.

It should be noted that the electronic device may include: at least one of a mobile phone, a tablet computer, an e-book reader, an MP3 player, an MP4 player, a laptop computer, a car computer, a desktop computer, a smart TV, and a wearable device item.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art who is familiar with the technical scope disclosed by the present invention can easily think of changes or replacements, which should cover within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (11)

1. a lifting device, applied to electronic equipment, is characterized in that, comprises drive mechanism, functional module, flexible circuit board and support, the two ends of described flexible circuit board are respectively with described function module and described electronic The circuit board of the device is connected, and the driving mechanism is connected with the functional module to drive the functional module to move; the flexible circuit board has a bending part, and the supporting member is respectively connected with the bending part and the bending part. The drive mechanism is connected. 2 . The lifting device according to claim 1 , wherein the flexible circuit board comprises a first layer and a second layer, and both the first layer and the second layer are connected with the functional module and all the In the circuit board connection, the first layer includes a first bending portion, the second layer includes a second bending portion, and the support member is located between the first bending portion and the second bending portion During this time, the part of the first layer other than the first bending part is adhered to the part of the second layer except the second bending part. 3 . The lifting device according to claim 1 , wherein the flexible circuit board comprises a first layer and a second layer, and both the first layer and the second layer are connected to the functional module and all the The circuit board is connected, the first layer includes a first bending part, the second layer includes a second bending part, and the support is located between the first bending part and the second bending part A side away from the functional module and close to the driving mechanism. 4. The lifting device according to claim 2 or 3, wherein the lengths of the first layer and the second layer are the same. 5 . The lifting device according to claim 1 , wherein, during the movement of the functional module, the bending portion changes between a first state and a second state; in the first state , the bending portion forms one bend, and in the second state, the bending portion forms three bends. 6 . The lifting device according to claim 1 , wherein the support member is located in the middle of the bending portion. 7 . 7 . The lifting device according to claim 1 , wherein the support member is a support rod, and in the extending direction of the support rod, the length of the bending portion is less than or equal to the length of the support rod. 8 . . 8 . The lifting device according to claim 1 , wherein the driving mechanism comprises a driving member and a transmission shaft connected to the driving member, and an end of the transmission shaft away from the driving member is connected to the functional module. 9 . In the group, the support is arranged on the transmission shaft. 9 . The lifting device according to claim 8 , wherein the support member comprises a baffle plate and a protruding member disposed on the baffle plate, the baffle plate is connected to the transmission shaft, and the baffle plate is connected to the transmission shaft. 10 . The outgoing piece is connected with the bending part. 10 . The lifting device according to claim 1 , wherein the functional module is a camera module or a receiver module. 11 . 11. An electronic device, characterized in that it comprises the lifting device according to any one of claims 1-10.

Images