TWI647399B - Retractable connecting 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 clamping member. The opposite ends of the flexible wire are respectively connected to the chassis and the carrier. The clamping member holds the flexible wire and the clamping member has a consistent aperture. The telescopic guiding rod extends through the through hole of the clamping member for guiding 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 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 clamping member. The opposite ends of the flexible wire are respectively connected to the chassis and the carrier. The clamping member holds the flexible wire and the clamping member has a consistent aperture. The telescopic guiding rod extends through the through hole of the clamping member for guiding 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.

Wherein, 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 beneficial to existing A longer length of flexible wire is placed in the space to increase the distance from which the carrier is pulled.

Moreover, the flexible wire can be clamped and fixed without screws by the clamping member, and the assembly is simple and fast.

In addition, the position of the assembled clamping member can be adjusted according to actual needs, which helps to align the through holes and allow the telescopic guiding rod to be more smoothly penetrated.

In addition, the material of the clamping member has a certain degree of rigidity, so that the two flexible wires can maintain the required structural strength after being assembled and clamped by the clamping members, and help to omit the conventional cable and need to be additionally wrapped with tape. Costs and steps.

Moreover, since the friction coefficient of the surface of the clamp member is low, the friction generated when the clamp member and the telescopic guide rod move relative to each other are small, which contributes to smoother sliding of the carrier.

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 design of the assembly hole 91a and the elastic piece 92 of the assembly frame 91 of the chassis 9 is similar to the design of the assembly hole 81a and the elastic piece 82 of the assembly frame 81 of the carrier 8, it will not be described again.

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.

8 to 10, FIG. 8 is a partially enlarged schematic view of the electrical connection group of FIG. 1, FIG. 9 is a partially enlarged exploded view of the electrical connection group of FIG. 1, and FIG. 10 is an electrical connection of FIG. A side cross-sectional view of the group.

In the present embodiment, the electrical connection group 20 includes two flexible wires 210 and a plurality of clamping members 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 clamping member 220 includes a first clamping portion 221 and a second clamping portion 222. The first clamping portion 221 is detachably assembled to the second clamping portion 222 and surrounds the two clamping grooves 220s together with the second clamping portion 222. The first clamping portion 221 is assembled with the second clamping portion 222 to sandwich the two flexible wires 210 therebetween, such that the two flexible wires 210 are respectively located in the two clamping slots 220s.

Therefore, the two flexible wires 210 can be fixed via the clamping member 220, and the first clamping portion 221 and the second clamping portion 222 are directly assembled by means of a snap structure without screws, and the assembly is convenient. And fast. In addition, the second flexible wire 210 can be installed after the bending and positioning, and the clamping member 220 can be installed. Compared with the conventional cable, the multi-channel process of connecting the wire by applying the sealing film and then applying the sealing film is required. The assembly process of the present invention is simpler and more efficient, and the cost of the material and assembly of the sealing film can be eliminated, thereby helping to reduce the cost of the electrical connection group 20. In addition, since the material of the clamping member 220 can be, for example, plastic, it has a certain degree of rigidity, so that the two flexible wires 210 can be assembled and clamped by the clamping member 220 to maintain the required structural strength, thereby helping to omit the tradition. The cable requires additional cost and steps to secure the tape. However, it is to be noted that the present invention is not limited to the number of the clamping members, and the number of the clamping members may be increased or decreased according to actual needs. For example, in other embodiments, the number of the clamping members may be only one, and may be For example, it is one end of an assembly frame that is clamped on the flexible wire 210 and is closer to the assembly rack or the carrier of the chassis.

It should be noted that, in this embodiment, each of the clamping members 220 has a constant hole S2, and penetrates the first clamping portion 221 and the first direction along the direction from the first clamping portion 221 to the second clamping portion 222. The two clamping portions 222 are located between the two clamping slots 220s. The shape of the opening of the through hole S2 in the first clamping portion 221 and the second clamping portion 222 is, for example, an elliptical shape. Moreover, in this embodiment and other embodiments, each of the consistent holes S2 penetrates the clamping member 220 in one direction, and the direction is not parallel to the extending direction of the clamping groove 220s. However, it is to be noted that the present invention is not limited to the position of the through hole S2 of the aforementioned holding member 220 and the shape of the opening. For example, in other embodiments, the through hole S2 may be located on the same side of the two clamping grooves 220s, and the opening shape thereof is, for example, a circular shape.

Thereby, the telescopic section 110 of the telescopic guiding rod 10 can penetrate the through holes S2 of the clamping members 220 such that the telescopic guiding rod 10 penetrates the electrical connection group 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. Wherein, the position of the assembly clamping member 220 can be adjusted according to actual needs, which helps to align the through hole S2 and allow the telescopic guiding rod 10 to be more smoothly penetrated.

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 through hole may be located on one side of the flexible wire after the clamping member is clamped on the flexible wire, correspondingly, In the embodiment, the clamping member has only one clamping groove.

Next, please refer to FIG. 11 to FIG. 12, FIG. 11 to FIG. 12 are schematic diagrams of the operation of the retractable device, the chassis and the carrier of FIG. 1 , wherein it is reminded that FIGS. 11 to 12 are top views of FIG. 1 . 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.

Further, since the friction coefficient of the surface of the holder 220 is low, the friction generated when the holder 220 and the telescopic guide rod 10 move with each other is small, contributing to smoother sliding of the carrier 8.

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.

Wherein, the flexible wire can be installed after the bent position, and the clamping member can be installed, and the multi-channel process of connecting the wire by applying the sealing film and then applying the sealing film is compared with the conventional wire. The assembly process is simpler and more efficient, and the cost of the material and assembly of the sealing film can be eliminated, thereby helping to reduce the cost of the electrical connection group.

Moreover, the flexible wire can be clamped and fixed without screws by the clamping member, and the assembly is simple and fast.

In addition, the position of the assembled clamping member can be adjusted according to actual needs, which helps to align the through holes and allow the telescopic guiding rod to be more smoothly penetrated.

In addition, the material of the clamping member has a certain degree of rigidity, so that the two flexible wires can maintain the required structural strength after being assembled and clamped by the clamping members, and help to omit the conventional cable and need to be additionally wrapped with tape. Costs and steps.

Moreover, since the friction coefficient of the surface of the clamp member is low, the friction generated when the clamp member and the telescopic guide rod move relative to each other are small, which contributes to smoother sliding of the carrier.

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 Clamping member 220s Clamping groove 221 First clamping part 222 Second clamping part 821 Fixed end 823 Moving end 921 Fixed end 923 Moving end r1 First Aperture r2 second aperture R1 first outer diameter R2 second outer diameter S2 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. FIG. 8 is a partially enlarged schematic view of the electrical connection line set of FIG. 1. FIG. Figure 9 is a partially enlarged exploded view of the electrical connection set of Figure 1. Figure 10 is a side cross-sectional view of the electrical connection set of Figure 1. 11 to 12 are schematic views of the operation of the retractable device, the chassis and the carrier of Fig. 1.

Claims (8)

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. The telescopic guiding rod comprises a telescopic section and at least one assembly section connected to each other, and the at least one assembly section has a neck and a head, and the neck is connected Between the telescopic section and the head, a first outer diameter of the head is larger than a second outer diameter of the neck; and an electrical connection group includes a flexible wire and a clamping member. The opposite ends of the flexible wire are respectively connected to the chassis and the carrier, the clamping member clamps the flexible wire, and the clamping member has a consistent hole, the telescopic section of the telescopic guiding rod The through hole of the clamping member is configured 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. The retractable device of claim 1, wherein the clamping member comprises a first clamping portion and a second clamping portion, the first clamping portion being detachably assembled to the second clamping portion to The second clamping portion collectively surrounds a clamping slot for the flexible wire to pass through to clamp the flexible wire to the first clamping portion and the second clamping portion Between the ministries. The retractable device of claim 2, wherein in the clamping member, the through hole is on a side of the clamping groove. The retractable device of claim 2, wherein in the clamping member, the through hole penetrates the clamping member in a direction that is non-parallel to the extending direction of the clamping groove. The retractable device of claim 1, wherein the telescopic segment is connected to the chassis away from one end of the at least one assembly segment, and the at least one assembly segment is for connecting to the carrier. The telescopic device of claim 5, wherein 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 smaller 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 section to the aperture. The telescopic device of claim 6, wherein the carrier includes an assembly frame and a resilient piece, the assembly hole is located in the assembly frame, the elastic piece has a fixed end and a movable end, and the fixed end is fixed to the assembly frame 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 to the small hole, the elastic piece is The movable end stops at the side of the small hole toward the one of the large holes. 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.