TWI645126B - Telescopic device - Google Patents

Abstract

A telescopic device suitable for connecting a chassis and a carrier. The carrier can be slidably disposed in the chassis relative to the chassis. The telescopic device includes a telescopic guide bar and an electrical connection set. The opposite ends of the retractable guiding rod are respectively connected to the chassis and the carrier. The electrical connection set includes a flexible wire and a glue layer. The opposite ends of the flexible wire are respectively connected to the chassis and the carrier. The glue layer is connected to the flexible wire. Among them, the glue layer has a consistent hole. The telescopic guiding rod extends through the through hole to guide the flexible wire to expand or collapse along the extending direction of the telescopic guiding rod when the carrier slides relative to the chassis.

Description

Telescopic device

The invention relates to a connecting device, in particular a telescopic device.

At present, cloud information and applications can be seen everywhere in daily life. The vigorous development of various services and networking devices has made the amount of data larger and larger, and the server plays a very important role behind the entire cloud industry. In order to provide better service quality for the staff, the operators are all actively purchasing servers to increase the information density of the data center.

In order to improve the efficiency of repair and replacement of the server, some of the modules of the server are usually designed to be extracted from the server rack. Moreover, in order to maintain electrical connection when the server or module is pulled out, the length of the cable in the server will be retained as the length of the cable is taken to match the movement of the server. In order to enable the cable to be used with the movement of the server or module, the cable is usually fixed to the Cable Management Arm (CMA), and the cable is connected to the server or module through the linkage mechanism. The cable arm and cable can be extended or retracted as the servo or module moves. However, when configuring the management arm, the space for stretching must be considered, and if the extension is long enough, the management arm will take up a lot of space when it is retracted. Therefore, when configuring the cable management arm, it will occupy a large space in the server.

In view of this, the present invention provides a retractable device that allows the cable to be pulled out smoothly without sacrificing too much space in the server, or can be tightly compressed and retracted.

A retractable device according to the present invention is suitable for connecting a chassis and a carrier. The carrier can be slidably disposed in the chassis relative to the chassis. The retractable device comprises: a telescopic guiding rod and an electrical connecting wire set. The opposite ends of the retractable guiding rod are respectively connected to the chassis and the carrier. The electrical connection set includes a flexible wire and a glue layer. The opposite ends of the flexible wire are respectively connected to the chassis and the carrier. The glue layer is connected to the flexible wire. Among them, the glue layer has a consistent hole. The telescopic guiding rod extends through the through hole to guide the flexible wire to expand or collapse along the extending direction of the telescopic guiding rod when the carrier slides relative to the chassis.

In the telescopic device disclosed in the present invention, after the electrical connection line set is penetrated by the telescopic guiding rod, the upper and the right and left direction limits can be generated for the electrical connection line group, and only the electrical connection line group can be extended along the telescopic guide. The extending direction of the lead rod is unfolded or folded, and the guiding and limiting effects are generated on the electrical connecting wire group, thereby avoiding the problem that the electric connecting wire group is entangled and knotted when being stretched or folded.

The above description of the disclosure and the following embodiments are intended to illustrate and explain the spirit and principles of the invention, and to provide further explanation of the scope of the invention.

The detailed features and advantages of the present invention are described in detail in the embodiments of the present invention. The related objects and advantages of the present invention will be readily understood by those skilled in the art. The following examples are intended to describe the present invention in further detail, but are not intended to limit the scope of the invention.

In addition, the embodiments of the present invention are disclosed in the following drawings, and for the sake of clarity, the details of the invention are described in the following description. However, it should be understood that these practical details are not intended to limit the invention. In addition, for the sake of simplicity of the drawings, some conventional structures and components will be illustrated in a simplified schematic manner, and even some of the drawings omits the structure of cables (cables, or cables). In order to keep the picture clean and tidy, declare it first.

Furthermore, unless otherwise defined, all terms used herein, including technical and scientific terms, have their ordinary meaning, and their meaning is understood by those skilled in the art. Furthermore, the definition of the above vocabulary should be interpreted in the present specification as having the same meaning as the technical field related to the present invention. Unless specifically defined, these terms are not to be construed as too idealistic or formal.

1 to 4, FIG. 1 is a perspective view of a telescopic device connected to a chassis and a carrier according to an embodiment of the present invention, and FIG. 2 is an exploded view of the telescopic device, the chassis and the carrier of FIG. 3 to 4 are partial enlarged exploded views of the retractable device, the chassis and the carrier of FIG.

First, as shown in FIG. 1 to FIG. 2, this embodiment provides a retractable device 1 suitable for connecting a carrier 8 and a chassis 9. The carrier 8 is slidably disposed on the chassis 9 with respect to the chassis 9.

Specifically, the carrier 8 includes a frame 80 and an assembly frame 81. The frame 80 can be used to carry electronic components such as a hard disk, a motherboard, and the like. The assembly frame 81 is assembled on the frame 80 for connecting one end of the retractable device 1 for fixing the aforementioned electronic components to other electronic components or other chassis outside the chassis 9 via the retractable device 1. The electronic components in the disk are electrically connected. In the preferred embodiment of the present invention, the telescopic device 1 is connected to the hard disk control backplane of the carrier, for example, and the other end is connected to the chassis 9, but not limited thereto.

Further, as shown in FIGS. 3 to 4, the assembly frame 81 has an assembly hole 81a, and the assembly hole 81a has a large hole 81a1 and a small hole 81a2 which communicate with each other. One of the first holes r1 of the large holes 81a1 is larger than a second hole r2 of the small holes 81a2. And in view of the drawing, the large hole 81a1 is located above the small hole 81a2. In addition, the carrier 8 further includes a resilient piece 82 made of a material having elasticity and deformation restoring force such as metal or rubber. The elastic piece 82 has a fixed end 821 and a movable end 823 opposite to each other. The fixed end 821 is, for example, screwed to one side of the assembly frame 81. The movable end 823 is movably located at the large hole 81a1, and normally faces the large hole 81a1 and stops at the side of the small hole 81a1 toward the one of the large holes 81a1.

Next, regarding the chassis 9, it includes a frame body 90, an assembly frame 91 and a spring piece 92. The frame 90 can be used to carry the carrier 8 and the frame 80 of the carrier 8 can be slidably disposed within the frame 90 of the chassis 9, for example, via a set of rails (not numbered). The assembly frame 91 is assembled to the frame body 90 for connecting and fixing the other end of the telescopic device 1. As shown in FIG. 3, the assembly frame 91 has an assembly hole 91a. However, since the assembly holes 91a and the elastic pieces 92 of the assembly frame 91 of the chassis 9 are similar to the assembly holes 81a and the elastic pieces 82 of the assembly frame 81 of the carrier 8, the details are not described herein.

As shown in FIG. 2 to FIG. 3, in the embodiment, the telescopic device 1 includes a telescopic guiding rod 10 and an electrical connection group 20.

The telescopic guide bar 10 includes a telescoping section 110 and a second assembly section 120. The telescoping section 110 is coupled between the two assembly sections 120, and the telescoping section 110 includes a plurality of movable portions 111 connected in series, and the adjacent movable portions 111 are relatively movable to change the length of the telescopic section 110. The telescopic guide rods 10 are respectively fixed to the assembly holes 81a on the carrier 8 and the assembly holes 91a on the chassis 9 via the two assembly sections 120. However, the assembly relationship between the second assembly section 120 and the assembly hole 81a and the assembly hole 91a is similar. Therefore, only the assembly of one of the assembly sections 120 and the assembly hole 81a on the carrier 8 will be described below.

Please refer to FIG. 5 and FIG. 5 to FIG. 5 again. FIG. 5 is a partially enlarged schematic view showing the telescopic guiding rod of FIG. 1 fixed to the carrier, and FIG. 6 is the telescopic guiding rod of FIG. 1 fixed to the carrier. Partially enlarged side view. In detail, each assembly section 120 includes a neck 121 and a head 122. The neck 121 is coupled between the telescoping section 110 and the head 122. One of the first outer diameters R1 of the head 122 is greater than one of the second outer diameters R2 of the neck. The first aperture r1 of the large hole 81a1 is larger than the first outer diameter R1 of the head 122, and the second aperture r2 of the small hole 81a2 is slightly larger than the neck 121, and the size of the assembly hole 81a is compared with the size of one of the assembly sections 120. The second outer diameter R2 is smaller than the first outer diameter R1 of the head 122.

When the assembly section 120 is assembled to the assembly hole 81a, the movable end 823 of the elastic piece 82 can be first opened to expose the large hole 81a1, and then the head 122 of the assembly section 120 can pass through the assembly hole through the large hole 81a1 of the assembly hole 81a. 81. The neck 121 is placed in the small hole 81a2 by the homeopath. Since the outer diameter of the head portion 122 and the movable portion 111 are both larger than the second aperture r2 of the small hole 81a2, the neck portion 121 is fixed in the small hole 81a2 in the extending direction of the telescopic guide rod 10. At this time, the head 122 and the elastic piece 82 are located on the same side of the assembly frame 81, and the movable end 823 of the elastic piece 82 is stopped to stop on the side of the small hole 81a2 toward the large hole 81a1, that is, to stop above the head 122. The retractable guide bar 10 can be prevented from moving away from the assembly hole 81a in the direction of the large hole 81a1.

Similarly, as shown in FIG. 7 , it is a partially enlarged schematic view of the telescopic guiding rod of FIG. 1 fixed to the chassis. The other assembly section 120 of the telescopic guide bar 10 can be mounted on the assembly hole 91a of the chassis 9 in the foregoing manner to connect the telescopic guide bar 10 between the chassis 9 and the carrier 8. It is to be noted, however, that the present invention is not limited to the number of assembly sections 120 and the manner in which the assembly section 20 is assembled with the chassis 9 and the carrier 8. For example, in other embodiments, the number of assembly segments 120 may be only one, and is fixed to the assembly hole 81a of the carrier 8 in the foregoing manner, and one end of the telescopic guide bar without the assembly segment 120 may be fixed, for example, by welding. The assembly frame 91 of the chassis 9.

The electrical connection set 20 includes two flexible wires 210 and a glue layer 220. The flexible wire 210 has flexibility. In this embodiment, each of the flexible wires 210 may be a cable composed of a plurality of cables, and the opposite ends are electrically connected to the chassis 9 (for example, fixed to the sidewall of the chassis 9 to The electrical connection between the other cables or the backplane is electrically connected to the hard disk backplane on the carrier 8 (not labeled). The adhesive layer 220 is a "seal film" in the middle of a cable, and is also made of a material having flexibility. The glue layer 220 is coupled between the two flexible wires 210, but the length and position of the glue layer 220 engaging the flexible wire 210 are not intended to limit the present invention. In addition, in order to strengthen the strength of the electrical connection group 20, a plurality of rubbers 230 are wound around the flexible wire 210, but the rubber 230 is optional, and the invention is not limited thereto.

In the embodiment, the glue layer 220 has a plurality of through holes S2, and each of the consistent holes S2 is, for example, an elliptical through hole. The telescopic section 110 of the telescopic guiding rod 10 penetrates the through holes S2 of the adhesive layer 220 such that the telescopic guiding rod 10 penetrates the electrical connecting wire set 20. And in the setting, the total length of the electrical connection group 20 is greater than the maximum length of the telescopic section 110, and the farthest of the through holes S2 is between the opposite ends of the telescopic section 110, so that when When the cable set 20 is disposed on the telescopic guide bar 10, it can always maintain a slight deflection. However, it is to be noted that the present invention is not limited to the number of through holes in the glue layer. For example, in other embodiments, the number of through holes on the glue layer may be only one.

Further, although the electrical connection group includes two flexible wires in the present embodiment, the present invention is not limited to the number of flexible wires. For example, in other embodiments, the number of flexible wires may be only one, and the glue layer may be coupled to one side of the flexible wire.

Next, please refer to FIG. 8-9. FIG. 8-9 is a schematic diagram of the operation of the retractable device, the chassis and the carrier of FIG. 1, wherein it is reminded that FIGS. 8-9 are top views of FIG. In operation, since the assembly sections 120 of the opposite ends of the telescopic guide bar 10 are respectively fixed to the carrier 8 and the chassis 9, when the carrier 8 is slidably moved relative to the chassis 9, the telescopic section of the telescopic guide bar 10 is extended. The movable portion 111 of the 110 can be moved away from or close to each other to change the length of the telescopic section 110, and the electrical connection group 20 can be flexibly deformed by being pressed or stretched by the relative movement of the carrier 8 and the chassis 9. In this case, since the electrical connection group 20 is disposed on the telescopic section 110 of the telescopic guiding rod 10 via the through hole S2, the telescopic section 110 can provide the upper and the right and left direction limits of the electrical connection group 20, and can only make electricity. The connecting wire group 20 is unfolded or folded along the extending direction of the telescopic guiding rod 10, and has a guiding effect.

Next, although the telescopic guiding rod 10 is disposed on the electrical connection group 20 in a manner of penetrating through the plurality of through holes S2 in the adhesive layer 220, the present invention is not limited thereto. As shown in FIG. 10, FIG. 10 is an exploded perspective view of a telescopic device according to another embodiment of the present invention. This embodiment provides an electrical connection group 20', which differs from the previous embodiment in that the electrical connection group 20' includes a plurality of glue layers 220' that are spaced apart from each other between the two flexible wires 210, for example Located in the bend of the flexible wire 210, and in particular, the glue layer 220' does not have the aforementioned through hole, and the telescopic section 110 of the telescopic guide bar 10 can be modified to penetrate the glue layers 220' and II. A plurality of through holes S1 surrounded by the flexible wire 210. In operation, the telescoping guide bar 10 can still provide guidance and limit functions to the electrical connection set 20'. Further, in the manufacturing, the electrical connecting wire group 20' of the present embodiment omits the step of forming a through hole for the adhesive layer as compared with the electrical connecting wire group 20 of the first embodiment, contributing to cost reduction.

According to the telescopic device of the above embodiment, after the electrical connection line set is penetrated by the telescopic guiding rod, the upper and the right and left direction limits can be generated for the electrical connection line group, and only the electrical connection line group can be extended along the telescopic guide The extending direction of the rod is unfolded or folded, and the guiding and limiting effects are generated on the electrical connecting wire group, thereby avoiding the problem that the electrical connecting wire group is entangled and knotted when being stretched or folded.

Moreover, since the telescopic guiding rod is disposed in the space between the chassis and the rear end of the carrier, the volume is small and does not occupy the space on the left and right sides of the chassis, which is beneficial to the use of a narrow-width model and is advantageous in both In some spaces, a longer length of flexible wire is placed to increase the distance from which the carrier is pulled.

In addition, the design of the perforation of the glue layer or the through hole between the wire and the glue layer is matched with the design of the telescopic guide bar, which is advantageous for reducing the manufacturing cost.

Although the present invention has been disclosed above in the foregoing embodiments, it is not intended to limit the invention. It is within the scope of the invention to be modified and modified without departing from the spirit and scope of the invention. Please refer to the attached patent application for the scope of protection defined by the present invention.

1 Retractable device 8 Carrier plate 9 Chassis 10 Telescopic guide bar 20 Electrical connection wire set 80 Frame body 81 Assembly frame 82 Spring piece 81a Assembly hole 81a1 Large hole 81a2 Small hole 90 Frame body 91 Assembly frame 91a Assembly hole 92 Spring piece 110 Telescopic Section 120 Assembly section 121 Neck 122 Head 210 Flexible wire 220 Adhesive layer 230 Adhesive 821 Fixed end 823 Movable end 921 Fixed end 923 Active end r1 First aperture r2 Second aperture R1 First outer diameter R2 Second outer Diameter S2 through hole S1 through hole

1 is a perspective view of a telescopic device connected to a chassis and a carrier according to an embodiment of the invention. 2 is an exploded perspective view of the retractable device, the chassis, and the carrier of FIG. 1. 3 to 4 are partial enlarged exploded views of the retractable device, the chassis and the carrier of FIG. 1. FIG. 5 is a partially enlarged schematic view showing the telescopic guiding rod of FIG. 1 fixed to the carrier. Figure 6 is a partial enlarged side elevational view of the telescopic guide bar of Figure 1 secured to a carrier. FIG. 7 is a partially enlarged schematic view showing the telescopic guiding rod of FIG. 1 fixed to the chassis. 8 to 9 are schematic views of the operation of the retractable device, the chassis and the carrier of Fig. 1. Figure 10 is an exploded perspective view of a telescopic device according to another embodiment of the present invention.

Claims (6)

A retractable device is adapted to connect a chassis and a carrier, the carrier is slidably disposed on the chassis relative to the chassis, the telescopic device comprises: a telescopic guiding rod, and the opposite of the telescopic guiding rod The two ends are respectively connected to the chassis and the carrier, wherein the telescopic guiding rod comprises a telescopic section and at least one assembly section connected to each other, the telescopic section extends through the through hole, and the telescopic section is away from the at least one assembly section One end is connected to the chassis, and the at least one assembly segment is connected to the carrier; and an electrical connection group includes a flexible wire and a glue layer, and opposite ends of the flexible wire are respectively connected to In the chassis and the carrier, the adhesive layer is coupled to the flexible wire; wherein the adhesive layer has a uniform hole, and the telescopic guiding rod extends through the through hole for guiding the carrier to slide relative to the chassis The flexible wire is led to expand or collapse along the extending direction of the telescopic guiding rod. The telescopic device of claim 1, wherein the at least one assembly section has a neck portion and a head portion, the neck portion is coupled between the telescoping section and the head portion, and the first outer diameter of the head portion a second outer diameter of the neck, the carrier has an assembly hole, the assembly hole includes a large hole and a small hole communicating with each other; wherein a first hole of the large hole is larger than the small hole a second aperture and greater than the first outer diameter of the head, the second aperture of the aperture being slightly larger than the second outer diameter of the neck and smaller than the first outer diameter of the head, such that The telescoping guide can be coupled to the carrier by assembling the neck of the at least one assembly segment to the aperture. The telescopic device of claim 2, wherein the carrier includes an assembly frame and a resilient piece, the assembly hole is located in the assembly frame, and the elastic piece has a fixed end and a movable end. The fixed end is fixed to the assembly frame, and the movable end is movably located at the large hole for shielding or exposing the large hole; when the neck of the at least one assembly section of the telescopic guiding rod is assembled When the hole is small, the movable end of the elastic piece stops at the side of the small hole toward the one of the large holes. The retractable device of claim 1, wherein the telescopic section comprises a plurality of striking movable portions, and the adjacent movable portions are relatively movable to change the length of the telescopic segment. A retractable device is adapted to connect a chassis and a carrier, the carrier is slidably disposed on the chassis relative to the chassis, the telescopic device comprises: a telescopic guiding rod, and the opposite of the telescopic guiding rod The two ends are respectively connected to the chassis and the carrier, wherein the telescopic guiding rod comprises a telescopic section and at least one assembly section connected to each other, the telescopic section extends through the through holes, and the telescopic section is away from the at least one assembly section One end is connected to the chassis, and the at least one assembly segment is connected to the carrier; and an electrical connection group includes two flexible wires and a plurality of adhesive layers, and opposite ends of the two flexible wires Connected to the chassis and the carrier, the glue layers are connected between the two flexible wires; wherein the two flexible wires and the glue layers surround a plurality of through holes, the stretchable The guiding rod extends through the through holes for guiding the flexible wires to expand or collapse along the extending direction of the telescopic guiding rod when the carrier slides relative to the chassis. The retractable device of claim 5, wherein the telescoping section comprises a plurality of striking movable portions, and the adjacent movable portions are relatively movable to change the length of the telescopic segment.