CN218570695U

CN218570695U - Flat cable tension holding device and electronic device

Info

Publication number: CN218570695U
Application number: CN202222820305.XU
Authority: CN
Inventors: 林文彦
Original assignee: First Dome Corp
Current assignee: First Dome Corp
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-03-03
Anticipated expiration: 2032-10-25

Abstract

A flat cable tension maintaining device and an electronic device are provided, wherein the flat cable tension maintaining device is suitable for being arranged on the electronic device, and the electronic device is provided with a first body, a second body rotatably arranged on the first body, and a flexible circuit board extending from the inside of the first body to the inside of the second body. The flat cable tension maintaining device comprises a base unit and a sliding unit. The sliding unit comprises a sliding block which can be movably arranged on the guide piece along the first direction and extends along the second direction, and at least two elastic pieces which are respectively arranged on the sliding groove and sleeved on the guide piece, the flexible circuit board surrounds the first surface, the sliding block and the second surface, when the flexible circuit board is pulled by the second body, the sliding block is driven to move towards the base, and the elastic restoring force of the elastic pieces can jointly and continuously push the sliding block to abut against the flexible circuit board so as to keep the tension of the flexible circuit board.

Description

Flat cable tension holding device and electronic device

Technical Field

The present invention relates to a flat cable tension maintaining device, and more particularly to a flat cable tension maintaining device and an electronic device.

Background

Generally, internal circuits of a portion of an electronic device (such as a notebook computer) must extend from one body to another body, which, however, is prone to cause a problem that the internal circuits are exposed from a gap between the two bodies. The existing solution is to use the flexible circuit board to complete the wiring, thus saving the space occupied by the wire diameter of the general circuit, and the shielding roller shutter of the roller shutter module shields the flexible circuit board in the gap between the first body and the second body, thus saving the space occupied by the hinge for the general circuit to pass through, and further reducing the thickness of the first body and the second body of the electronic device. However, the roller shutter module has a complex structure, a poor assembly yield, and a special material for the shaft and the roller shutter cloth, which results in a high cost.

The existing flat cable tension maintaining device can also save the space occupied by a hinge for a common circuit to pass through, so that the thicknesses of the first machine body and the second machine body of the electronic device can be reduced, although the structure of the device is simplified compared with the design of a roller shutter module, the simplification degree is still complex and the volume is larger, and the device is still not enough to be applied to the electronic device with thinner design, so that the device has improved space.

Disclosure of Invention

One of the objects of the present invention is to provide a flat cable tension maintaining device capable of solving at least one of the above problems.

The utility model discloses winding displacement tension keeping device is applicable to and sets up at electronic device, and this electronic device has first organism, rotationally sets up in the second organism of this first organism, and extends to the flexible circuit board of the inside of this second organism from the inside of this first organism, and this winding displacement tension keeping device contains the base unit, including base and two at least guide pieces, this base has at least one first face, at least one second face opposite to this first face and two at least spouts that extend along the first direction, the guide piece stretches into respectively the spout and rigid coupling this base; and the sliding unit comprises at least one sliding block which is movably arranged on the guide piece along the first direction and extends along a second direction perpendicular to the first direction and at least two elastic pieces which are respectively arranged on the sliding grooves and sleeved on the guide piece, the flexible circuit board surrounds the first surface, the sliding block and the second surface, when the flexible circuit board is pulled by the second body, the sliding block is driven to move towards the base, and the elastic restoring force of the elastic pieces can jointly and continuously push the sliding block to abut against the flexible circuit board so as to keep the tension of the flexible circuit board.

Winding displacement tension retaining device, this sliding block have be applicable to this flexible circuit board of butt push away to portion and two and connect the sliding part that should push away to the portion left and right sides respectively, the sliding part is cyclic annular and movably cover and locates guide piece and butt the elastic component.

Winding displacement tension holding device, this base still have middle piece, two connect respectively this middle piece left and right sides's connecting plate and two are connected respectively the connecting plate and respectively with this middle piece spaced side joint piece, this base has four spouts, wherein two spouts form respectively in the side joint piece, wherein two other are formed in this middle piece and separate each other, this base unit includes four guide, each connecting plate has this first face and this second face, this sliding element includes that two are located this middle piece respectively and sliding block and four elastic component between the side joint piece, this winding displacement tension holding device is applicable to and supplies two flexible circuit board to set up around ground.

Winding displacement tension holding device, this base still have two at least intercommunication respectively the screw of spout, each guide has the head, connects this head and along the guide part that this first direction extends and connect this guide part and screw lock in the screw thread portion of this screw that corresponds, this sliding part that this head stop corresponds breaks away from this spout.

Another object of the present invention is to provide an electronic device having the above-mentioned flat cable tension maintaining device.

The utility model discloses an electronic device, which comprises a first body; the second machine body is rotatably arranged on the first machine body; a flexible circuit board extending from the inside of the first body to the inside of the second body; the base unit comprises a base and at least two guide pieces, the base is provided with at least one first surface, at least one second surface opposite to the first surface and at least two sliding grooves extending along a first direction, the guide pieces respectively extend into the sliding grooves and are fixedly connected with the base, the sliding unit comprises at least one sliding block which can be movably arranged on the guide pieces along the first direction and extend along a second direction perpendicular to the first direction and at least two elastic pieces which are respectively arranged on the sliding grooves and sleeved on the guide pieces, the flexible circuit board surrounds the first surface, the sliding block and the second surface, when the flexible circuit board is pulled by the second machine body, the sliding block is driven to move towards the base, and the elastic restoring force of the elastic pieces can jointly and continuously push the sliding block to abut against the flexible circuit board so as to keep the tension of the flexible circuit board.

Electronic device, this sliding block have be applicable to this flexible circuit board of butt push to portion and two slide portion of connecting this push to the portion left and right sides respectively, slide portion is cyclic annular and movably cover and locates guide and butt the elastic component.

Electronic device, this base still have middle piece, two connect respectively this middle piece left and right sides's connecting plate and two connect respectively the connecting plate and respectively with this middle piece spaced side joint piece, this base has four spouts, wherein two spouts form respectively in the side joint piece, wherein two other are formed at this middle piece and separate each other, this base unit includes four guide pieces, each connecting plate has this first face and this second face, this sliding unit includes that two are located this middle piece respectively and slide block and four elastic component between the side joint piece, this winding displacement tension keeping device is applicable to and supplies two flexible circuit board to set up around ground.

Electronic device, this base still have at least two and communicate respectively the screw of spout, each guide has the head, connects this head and along the guide part that this fore-and-aft direction extends and connect this guide part and screw lock in the screw thread portion of this screw that corresponds, this sliding part that this head stop corresponds breaks away from this spout.

The beneficial effects of the utility model reside in that: the sliding block through the sliding unit can be movably arranged on the base, when the flexible circuit board is pulled by the second machine body, the sliding block is driven to move towards the base, and the elastic restoring force of the elastic piece can jointly and continuously push the sliding block to abut against the flexible circuit board so as to keep the tension of the flexible circuit board. Just the utility model discloses winding displacement tension retaining device's structure is compared in current winding displacement tension retaining device's structure more simply, part quantity still less, can be applicable to the electron device of more slim design, can provide the required tension that the flexible circuit board resets equally, and the equipment is compared easily in current roll curtain device and can reduce cost, has saved the roll curtain cloth material that the price is expensive.

Drawings

Fig. 1 is a perspective view of a first embodiment of an electronic device according to the present invention;

fig. 2 is a perspective view of the flat cable tension maintaining device and the flexible circuit board according to the first embodiment;

fig. 3 is a perspective view of the flat cable tension maintaining device of the first embodiment;

fig. 4 is an exploded perspective view of the flat cable tension maintaining device according to the first embodiment;

FIG. 5 is a cross-sectional view taken along section line V-V of FIG. 3;

FIG. 6 is a fragmentary cross-sectional view taken along section line VI-VI of FIG. 1, illustrating the second body in a stowed position;

FIG. 7 is a fragmentary cross-sectional view similar to FIG. 6, illustrating the second body between a retracted position and an open position;

FIG. 8 is a fragmentary cross-sectional view similar to FIG. 6, illustrating the second body in the open position; and

fig. 9 is a perspective view of a flat cable tension maintaining device according to a second embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1 to 3, the electronic device 100 of the present invention includes a first body 1, a second body 2, two Flexible Printed Circuits (FPCs) 3 and a cable tension maintaining device 10. The electronic device 100 is a notebook computer in the embodiment, but the electronic device 100 may also be a foldable mobile phone, a foldable tablet computer or other foldable electronic devices, for example. In addition, in other implementation forms, the number of the flexible circuit boards 3 may be only one, and at least one of the flexible circuit boards is required, which is not limited to the embodiment.

In the present embodiment, a notebook computer is taken as an example, the first body 1 is a portion for installing a keyboard, and the second body 2 is a portion for installing a screen, and is installed on the first body 1 and can rotate between a closed position (see fig. 6) and an open position (see fig. 8) relative to the first body 1, for example, the second body 2 can be rotatably installed on the first body 1 through a hinge (not shown).

The flexible circuit board 3 extends from the inside of the first body 1 to the inside of the second body 2, a plurality of electronic components (not shown) are respectively disposed inside the first body 1 and inside the second body 2, and the flexible circuit board 3 is mechanically and electrically connected between the electronic components inside the first body 1 and the electronic components inside the second body 2. By using the thin flexible circuit board 3 to complete wiring, the space occupied by the wire diameter of a common line can be saved.

Referring to fig. 2 to 5, the flat cable tension maintaining device 10 includes a base unit 4 and a sliding unit 5. The base unit 4 includes a base 41 and four guides 42. The base 41 has a middle block 411 extending along a first direction D1, two connecting plates 412 respectively connected to left and right sides of the middle block 411 and extending along a second direction D2 perpendicular to the first direction D1, two side blocks 413 respectively connected to the connecting plates 412 and respectively spaced from the middle block 411, four sliding slots 414 respectively formed in the middle block 411 and the side blocks 413, and four screw holes 415 respectively communicating with the sliding slots. Each connecting plate 412 has an upper first face 412a and a lower second face 412b opposite to the first face 412a, and the length of the connecting plate 412 in a third direction D3 perpendicular to the first direction D1 and the second direction D2 is greater than the length in the first direction D1. Two of the sliding grooves 414 are formed in the side blocks 413, and the other two sliding grooves are formed in the middle block 411 and spaced apart from each other. The guiding members 42 respectively extend into the sliding slots 414 and are fixedly connected to the base 41. Each guide member 42 has a head portion 421, a guide portion 422 connected to the head portion 421 and extending along the first direction D1, and a threaded portion 423 connected to the guide portion 422 and screwed into the corresponding threaded hole 415, wherein the diameter of the head portion 421 is larger than the diameter of the guide portion 422.

The sliding unit 5 is disposed on the base 41 and includes two sliding blocks 51 movably disposed on the base 41 along the first direction D1 and extending along the second direction D2, and four elastic members 52 disposed between the base 41 and the sliding blocks 51 and located in the sliding slots 414. The flexible circuit board 3 surrounds the first surface 412a, the slide block 51, and the second surface 412b, respectively. Each sliding block 51 has a pushing portion 511 adapted to abut against the flexible circuit board 3 and two sliding portions 512 respectively connected to the left and right sides of the pushing portion 511, and the sliding portions 512 are annularly and movably sleeved on the guiding member 42 and abut against the elastic member 52. The surface of the abutting part 511 abutting against the flexible circuit board 3 is arc-shaped, so that the friction force between the two parts can be reduced, and the flexible circuit board 3 is prevented from being damaged due to friction to prolong the service life. The sliding block 51 and the connecting plate 412 need to be kept at a certain distance, otherwise the sliding block 51 is stopped by the connecting plate 412 during the moving process and cannot move any further. The diameter of the head portion 421 of the guide 42 is also larger than the caliber of the sliding portion 512, and the head portion 421 can stop the corresponding sliding portion 512 from separating from the sliding groove 414. The elastic elements 52 may be, for example, cylindrical springs, respectively sleeved on the guiding portions 422 of the guiding elements 42 and abutting against the sliding portions 512, and the elastic elements 52 can jointly push the sliding block 51 to abut against the flexible circuit board 3.

Referring to fig. 2, 6 to 8, when a user wants to use the electronic device 100, the second body 2 is pushed to move from the folded position to the open position, the flexible circuit board 3 is pulled by the second body 2, and the sliding block 51 is driven to move toward the base 41, at this time, the elastic member 52 is pushed and compressed by the sliding portion 512 to generate an elastic restoring force to push the sliding block 51 together, the sliding blocks 51 are respectively abutted against the flexible circuit board 3, so that the tension of the flexible circuit board 3 can be maintained, the flexible circuit board 3 is not squeezed and can be smoothly returned in the process of moving the second body 2 from the open position to the folded position after use, and the flexible circuit board 3 can be effectively prevented from being damaged due to squeezing deformation. The utility model discloses winding displacement tension retaining device 10's simple structure, part are small in quantity, can provide the required tension that flexible circuit board 3 resets equally, and the equipment is compared easily in current roll curtain device can reduce cost, has saved the roll curtain cloth material that the price is expensive.

Referring to fig. 9, the second embodiment of the flat cable tension maintaining device 10' of the present invention is similar to the first embodiment, except that the middle block 411 of the base unit 4 is omitted, and the number of the connecting plates 412, the sliding grooves 414, the screw holes 415, the guiding members 42, the sliding blocks 51 and the elastic members 52 is half of the number of the first embodiment, the connecting plates 412 are respectively connected to the side connecting blocks 413, and the base 41 is only provided for surrounding one flexible circuit board 3.

To sum up, the utility model discloses a sliding block 51 of this sliding element 5 can set up in this base 41 movably, when this flexible circuit board 3 received this second organism 2 pulling, will drive this sliding block 51 and remove towards this base 41, the elastic restoring force of elastic component 52 can continuously promote this sliding block 51 butt in this flexible circuit board 3 in order to keep the tension of this flexible circuit board 3 jointly. Just the utility model discloses winding displacement tension retaining device 10's structure is compared in current winding displacement tension retaining device's structure more simply, part quantity still less, can be applicable to the electron device of more slim design, can provide the required tension that resets of flexible circuit board 3 equally, and the equipment is compared easily in current roll curtain device can reduce cost, has saved the roll curtain cloth that the price is expensive, so can reach cost utility model's purpose really.

However, the above embodiments are only examples of the present invention, and the scope of the present invention should not be limited thereto, and all the simple equivalent changes and modifications made according to the claims and the patent specification of the present invention are still included in the scope of the present invention.

Claims

1. A winding displacement tension keeping device is suitable for being arranged on an electronic device, and the electronic device is provided with a first machine body, a second machine body which is rotatably arranged on the first machine body, and a flexible circuit board which extends from the inside of the first machine body to the inside of the second machine body; characterized in that the flat cable tension maintaining device comprises:

the base unit comprises a base and at least two guide pieces, the base is provided with at least one first surface, at least one second surface opposite to the first surface and at least two sliding chutes extending along the first direction, and the guide pieces respectively extend into the sliding chutes and are fixedly connected with the base; and

and the sliding unit comprises at least one sliding block which can be movably arranged on the guide piece along the first direction and extends along a second direction vertical to the first direction and at least two elastic pieces which are respectively arranged on the sliding grooves and sleeved on the guide piece, the flexible circuit board surrounds the first surface, the sliding block and the second surface, when the flexible circuit board is pulled by the second body, the sliding block is driven to move towards the base, and the elastic restoring force of the elastic pieces can jointly and continuously push the sliding block to abut against the flexible circuit board so as to keep the tension of the flexible circuit board.

2. The ribbon cable tension maintaining device of claim 1, wherein: the sliding block is provided with a pushing and supporting part which is applicable to abutting against the flexible circuit board and two sliding parts which are respectively connected with the left side and the right side of the pushing and supporting part, and the sliding parts are annular and movably sleeved on the guide piece and abut against the elastic piece.

3. The ribbon cable tension maintaining apparatus of claim 2, wherein: the base is also provided with a middle block, two connecting plates respectively connected with the left side and the right side of the middle block and two side connecting blocks respectively connected with the connecting plates and respectively spaced from the middle block, the base is provided with four sliding grooves, wherein the two sliding grooves are respectively formed in the side connecting blocks, the other two sliding grooves are formed in the middle block and are spaced from each other, the base unit comprises four guiding pieces, each connecting plate is provided with a first surface and a second surface, the sliding unit comprises two sliding blocks respectively positioned between the middle block and the side connecting blocks and four elastic pieces, and the flat cable tension keeping device is suitable for being used for arranging two flexible circuit boards in a surrounding mode.

4. The traverse tension maintaining apparatus of claim 2, wherein: the base is also provided with at least two screw holes respectively communicated with the sliding grooves, each guide piece is provided with a head part, a guide part connected with the head part and extending along the first direction and a screw thread part connected with the guide part and screwed in the corresponding screw hole, and the head part stops the corresponding sliding part from separating from the sliding groove.

5. An electronic device, comprising:

a first body;

the second machine body is rotatably arranged on the first machine body;

a flexible circuit board extending from the inside of the first body to the inside of the second body; and

the flat cable tension keeping device comprises a base unit and a sliding unit, wherein the base unit comprises a base and at least two guide pieces, the base is provided with at least one first surface, at least one second surface opposite to the first surface and at least two sliding grooves extending along a first direction, the guide pieces respectively extend into the sliding grooves and are fixedly connected with the base, the sliding unit comprises at least one sliding block which can be movably arranged on the guide pieces along the first direction and extend along a second direction perpendicular to the first direction and at least two elastic pieces which are respectively arranged on the sliding grooves and sleeved on the guide pieces, the flexible circuit board surrounds the first surface, the sliding block and the second surface, when the flexible circuit board is pulled by the second machine body, the sliding block is driven to move towards the base, and the elastic restoring force of the elastic pieces can jointly and continuously push the sliding block to abut against the flexible circuit board so as to keep the tension of the flexible circuit board.

6. The electronic device of claim 5, wherein: the sliding block is provided with a pushing and supporting part which is applicable to abutting against the flexible circuit board and two sliding parts which are respectively connected with the left side and the right side of the pushing and supporting part, and the sliding parts are annular and movably sleeved on the guide piece and abut against the elastic piece.

7. The electronic device of claim 6, wherein: the base is further provided with a middle block, two connecting plates respectively connected with the left side and the right side of the middle block and two side connecting blocks respectively connected with the connecting plates and respectively spaced from the middle block, the base is provided with four sliding grooves, wherein the two sliding grooves are respectively formed in the side connecting blocks, the other two connecting plates are formed in the middle block and are spaced from each other, the base unit comprises four guiding pieces, each connecting plate is provided with the first surface and the second surface, the sliding unit comprises two sliding blocks respectively positioned between the middle block and the side connecting blocks and four elastic pieces, and the flat cable tension retaining device is suitable for being used for two flexible circuit boards to be arranged in a surrounding mode.

8. The electronic device of claim 6, wherein: the base is also provided with at least two screw holes respectively communicated with the sliding groove, each guide piece is provided with a head part, a guide part connected with the head part and extending along the first direction and a screw thread part connected with the guide part and screwed in the corresponding screw hole, and the head part stops the corresponding sliding part from being separated from the sliding groove.