KR200360854Y1 - Digital video recorder having shock buffer - Google Patents

Abstract

The present invention provides a mounting structure of a shock absorber having a simple configuration while attenuating the transmission of external forces such as shock and vibration that can be applied to important components such as a hard disk in multiple stages, and various shapes of the shock absorbing bolts used in such shock absorbers SUMMARY To provide a structure, a digital video recorder having a shock absorber that can effectively absorb an external force is provided.

The digital video recorder having a shock absorber of the present invention has a motor-driven auxiliary memory device (1) embedded in the casing (11, 12), but the lower nut is fixed to a plurality of points of the surface of the casing (12) (14a to 14d); A plurality of buffers having a buffer portion 33 axially incorporated between the lower screw shaft 32 screwed to the lower nuts 14a to 14d and the support plates 31a and 32b of the upper screw shaft 31. A bolt 30; A plurality of vertical plates 24 of the guide plate 20 including plate-shaped guide plates 20 for fixing the upper screw shaft 31 of the buffer bolt 30 to the wing portions 22a to 22d, respectively. The motor-driven auxiliary storage device 1 is mounted on the wall.

Description

Digital video recorder with shock absorber {DIGITAL VIDEO RECORDER HAVING SHOCK BUFFER}

The present invention relates to a digital video recorder, and more particularly, it can increase impact resistance by absorbing and attenuating shocks and vibrations of important internal components, such as a hard disk, which store data, and recording on hardware and such hardware. And a buffer device capable of minimizing the loss of stored data.

In general, a digital video recorder (DVR) receives an analog or digital video signal from a general airwave signal receiver, a closed circuit device, a video cam, a digital camera, and the like, and then uses a motor-driven auxiliary memory such as a hard disk. It is one of a video data management device that is compressed and stored in a device, and is easily reproduced and output to a display device such as a monitor as needed.

The DVR not only has a computer-like hardware, i.e., a central computing device, a main memory device, a motor-driven auxiliary memory device, various input / output ports, a decoder, an encoder and a scaler, but also the built-in middleware and its operating system. By controlling the function, you can conveniently use functions such as recording, searching, deleting, editing, and setting, and record and manage a large amount of video data almost infinitely according to the capacity of the auxiliary storage device (eg, hard disk).

In general, the DVR has a very slim shape similar to the design layout of a stacked server computer module, and unlike the conventional computer, the DVR is designed to efficiently record, store, and manage only video data. . For this reason, the main body of the DVR requires a frame structure that is excellent in durability and impact resistance because the free space for embedding the auxiliary storage device therein is small, and external shock can be transmitted directly to the inside.

However, the DVR according to the prior art does not include a shock absorber that can absorb or attenuate irregular or periodic shocks such as vibration and shock, and in the case of a product having a slim body, a complicated configuration in a narrow internal space It is very difficult to install a shock absorber and the like, and thus the situation is exposed to vibration and shock as it is.

In other words, when the hard disk is mounted directly on the internal frame of the DVR main body, when the transport, movement, installation, or fall of the HDD is directly transmitted to the hard disk and its internal components, damage occurs and data to be preserved permanently. Fatal errors and corruptions can occur.

Accordingly, an object of the present invention is to solve the problems described above, a buffer having a simple configuration while attenuating the transmission of external forces such as shock and vibration that can be applied to important components such as a hard disk in multiple stages It is to provide a digital video recorder having a mounting structure of the device and a shock absorber capable of effectively buffering external forces by providing various shapes of buffer bolts used in such a shock absorber.

1 is a perspective view for explaining a configuration of a DVR having a shock absorber according to an embodiment of the present invention;

2 is a plan view of the lower casing of the DVR having the shock absorber shown in FIG. 1;

3 is an exploded perspective view for explaining the configuration of the shock absorber mounted on the lower casing shown in FIG.

4 is a cross-sectional view for explaining a coupling relationship of the shock absorber shown in FIG. 3;

5a to 5f are cross-sectional views for explaining the shape structures of the buffer bolt of the shock absorber shown in FIG.

<Description of the symbols for the main parts of the drawings>

1: auxiliary storage device 11, 12: casing

14a-14d: Lower nut 20: Guide plate

21: flat plate portion 22a to 22d: wing portion

24: vertical plate 30: buffer bolt

31: upper screw shaft 31a, 32b: support plate

32: lower screw shaft 33: buffer part

33a, 33b: spring buffer 33c, 33d: bushing buffer

SUMMARY OF THE INVENTION An object of the present invention described above is a digital video recorder having a shock absorber having a motor-driven auxiliary memory built into a casing, comprising: a lower nut fixed to a plurality of points of a surface of the casing; A plurality of buffer bolts having a buffer unit which is axially coupled between the lower screw shaft screwed to the lower nut and the support plate of the upper screw shaft; And a plate-shaped guide plate fixing the upper screw shaft of the buffer bolt to the wing, respectively, wherein the motor-driven auxiliary memory device is mounted on a plurality of vertical plates of the guide plate. Is achieved by a video recorder.

Hereinafter, a digital video recorder (DVR) having a shock absorber according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5F.

1 is a perspective view for explaining the configuration of a DVR having a shock absorber according to an embodiment of the present invention, Figure 2 is a plan view of the lower casing of the DVR having a shock absorber shown in Figure 1, Figure 3 Is an exploded perspective view for explaining the configuration of the shock absorber mounted on the lower casing shown in FIG. 4 is a cross-sectional view illustrating the coupling relationship of the shock absorber shown in FIG. 3, and FIGS. 5A to 5F are cross-sectional views illustrating the shape structures of the shock absorbing bolt of the shock absorber shown in FIG.

First, as shown in FIG. 1, the DVR having a shock absorber of the present invention is a very slim body 10 having a layout of, for example, a width of 24 × 34 cm and a height of about 6 cm. Has

The main body 10 is coupled to have a box shape as a whole when overlapping each other, and has an upper casing 11 and a lower casing 12 formed to be disassembled and assembled by bolts or the like.

The front casing 13 is coupled to the front jaw 11 and the lower casing 12 by the fixing jaw and the groove coupling method.

The front casing 13 arranges various operation buttons for controlling functions such as power on / off, recording, searching, editing, etc. in the DVR, and has a wireless port for using a remote controller.

Any portion of the rear or one side of the upper casing 11 and the lower casing 12 has a conventional connector configuration for a power cord and a connecting cable.

Such a DVR having a shock absorber according to the present invention basically has the same hardware and software as a conventional DVR, and their detailed descriptions are not described in detail in the present invention, but in the present invention, a general standard hard disk is used. The organic coupling relationship of the shock absorber coupled to the inside of the narrow body 10 mentioned above will be described in detail.

In the present invention, the shock absorber is coupled to a plurality of buffer bolts and guide plates, and is coupled to the surface of any one of the upper casing 11 or the lower casing 12 to form a motor-driven auxiliary memory device such as a hard disk from outside. 1: refers to a device for buffering or attenuating an external force that can be transmitted to (see FIG. 3).

As shown in FIG. 2, the lower nuts 14a-14d are fixed to the bottom surface of the lower casing 12 in the main body 10 by welding at several, for example, four points.

Of course, the lower nuts 14a to 14d are not shown, but when the design is changed in such a manner as to be welded and fixed on the inner surface of the upper casing, the buffer bolt to be described later in detail can be fixed to the upper casing, The guide plate can be engaged to hang on.

For ease of explanation, the nut casings of the lower nuts 14a to 14d are perforated in a direction perpendicular to the bottom surface of the lower casing 12, and are described by screwing. Various buffer bolts will be fixed in detail.

In particular, the arrangement position of the lower nuts 14a to 14d is based on the center of the engaging hole of the guide plate 20 as indicated by the dotted line.

As shown in FIG. 3, the guide plate 20 has an elastic force according to the characteristics of its material, such as a leaf spring, and serves as a guide plate with an external force along with a basic role such as a bracket for mounting the auxiliary memory device 1. (20) A plurality of wing portions 22a to 22d each extending in both directions are formed in the rectangular flat plate portion 21 so as to play the same role as a leaf spring for transmitting and distributing to the whole. . Each of the wing portions 22a to 22d is formed with a bolt hole 23 for mounting a buffer bolt at a position coinciding with the axis of the lower nuts 14a to 14d.

The shock absorbing bolt 30 has a shock absorbing portion 33 including a material and an internal component for shock damping or attenuation, which will be described in detail below, between the upper screw shaft 31 and the lower screw shaft 32 whose shaft centers are matched. It is formed integrally.

In addition, on both sides of the flat plate portion 21, a plurality of vertical plates 24 extending in the vertical direction in the region excluding the wing portions 22a to 22d are formed, and the side surfaces of the ordinary auxiliary storage device 1 are provided. Auxiliary memory device mounting bolt holes 25 are formed in the vertical plate 24 so as to correspond to the formed plurality of bolt holes 2, respectively.

The auxiliary memory device mounting bolt hole 25 is preferably arranged at a predetermined position of one side and the other vertical plate 24 in a pair of long holes and short holes in order to facilitate bolting of the auxiliary memory device 1. Do.

As shown in FIG. 4, in the present invention, each of the buffer bolts 30 is fastened 1: 1 to the lower nut 14c fixed to the upper casing or the lower casing 12 of the DVR. The corresponding cushioning bolts are also fastened to the other lower nuts 14a, 14b and 14d as well.

Thereafter, the operator grasps each of the buffer bolts 30 and rotates them in the screw fixing direction with the loosening spring washer 15 'inserted into the lower screw shaft 32 to all the lower nuts 14a to 14d. Engage the lower screw shafts 32, respectively.

In this case, each buffer bolt 30 is fixed perpendicularly to the bottom surface of the lower casing 12.

The wing portions 22c of the guide plate 20 are respectively inserted into the upper screw shaft 31 of the buffer bolt 30 through the bolt holes 23 for mounting the buffer bolts, and then other spring washers 15 "are placed thereon. The spring washer 15 "is first fitted to the upper screw shaft 31 according to the design change, and then the wing 22c of the guide plate 20 through the bolt hole 23 for mounting the buffer bolt. ) Can be fitted respectively.

As a result, the guide plate 20 is maintained in a horizontal state supported by a plurality of buffer bolts 30, and then the upper nut 16 is screwed to the upper screw shaft 31, the buffer as It is fixed to the bolt (30).

Thereafter, the operator places the auxiliary memory device 1 on the upper portion of the guide plate 20, and then mounts the auxiliary memory device formed in the bolt hole of the auxiliary memory device 1 and the vertical plate 24 of the guide plate 20. After aligning the bolt holes for the auxiliary memory device, the bolt 3 for fixing the auxiliary memory device is fastened to each of the matched holes, thereby at least the guide plate 20 between the auxiliary memory device 1 and the lower casing 12. And the coupling of the shock absorber including the shock absorbing bolt 30 is completed.

Here, the auxiliary memory device mounting bolt holes formed in the vertical plate 24 with respect to the flat plate portion 21 of the guide plate 20 are the lower portion of the auxiliary memory device 1 and the flat plate portion 21 of the guide plate 20. It is preferable to form at the height (position) as much as possible to form a space | gap between ().

In addition, the auxiliary memory device 1 is disposed by the guide plate 20 and the buffer bolt 30 in a position spaced apart by a predetermined height between the lower casing 12, the lower casing 12 from the outside The external force that can be transmitted through is not directly received.

When the shock transmission process associated with the shock absorbing bolt 30 and the guide plate 20 coupled as described above with reference to Figure 4, the shock transmitted to the axial direction of the shock absorbing bolt 30 in the shock absorbing portion 33 The primary shock (g), and the residual impact remaining after the primary shock is transmitted secondly by the plate portion 21 and the wing portion 22c such as the leaf spring when transmitted in the planar direction of the guide plate 20. Buffered (h).

Here, the plate portion 21 has an elastic force, such as a leaf spring corresponding to a relatively large area, the wing portion 22c is a portion of the leaf spring corresponding to a relatively narrow area compared to the plate portion 21 It has elastic force.

In addition, as the shock transmitted from one side of the buffer bolt 30 is transmitted to the flat plate portion 21 connected horizontally through the one side blade portion 22c, and then dispersed into the other wing portion and the other buffer bolt (j), the auxiliary memory The device 1 is to be secured.

Hereinafter, various types of buffer bolts 30 usable in the present invention will be described with reference to FIGS. 5A to 5F.

As shown in FIG. 5A, the buffer bolt 30 has a plate-like support plate 31a integrally formed under the upper screw shaft 31, and an upper adhesive layer 34a is provided below the support plate 31a. The upper surface of the buffer part 33 exists, and the lower adhesive layer 34b exists in the lower surface of the buffer part 33, and the support plate 32a of the lower screw shaft 32 is fixed.

Here, the buffer unit 33 is not particularly limited in the present invention because any buffer material that can buffer the external force can be used, for example, rubber, urethane, silicone, coil spring, link type having a predetermined size of elastic force It is preferable that it is a spring.

In particular, when the shock absorbing portion 33 is formed of rubber, urethane, silicone, or the like, it has a cross-sectional area equal to the planar area of the support plates 31a and 32a of each of the upper screw shaft 31 and the lower screw shaft 32, and is in a solid shaft state or hollow state. It is preferable to be in an axial state.

As shown in FIG. 5B, the other buffer bolt 30 forms a male screw portion on the upper and lower portions of the buffer portion 33 filled with a cushioning material such as rubber, urethane, and silicone, and the upper screw shaft 31. The male screw portions of each of the shock absorbing portions 33 are screwed to the female screw portions 31b and 32b formed in the axial direction on the inner surfaces facing each other from the support plates 31a and 32a of the lower and screw shafts 32, respectively. It is preferable.

This buffer bolt 30 has the advantage that it is possible to use a fast bolt manufacturing through the mechanical coupling without the need for an adhesive.

As illustrated in FIG. 5C, the other buffer bolt 30 forms female screw portions on the upper and lower portions of the buffer portion 33 filled with a cushioning material such as rubber, urethane, and silicone, respectively, and supports plates 31a and 32a. Of course, the design can be changed to screw the female threaded portion of each of the buffer portion 33 to the male threaded portion (31c, 32c) formed in the axial direction on the inner side facing each other.

As shown in FIG. 5D, the other buffer bolt 30 is also formed by welding the upper and lower portions of the spring buffer portion 33a made of a buffer material such as a coil spring by the upper screw shaft 31 and the lower screw shaft 32. It is preferable to couple between the support plates 31a and 32a of ().

As shown in FIG. 5E, yet another shock absorbing bolt 30 has a spring shock absorbing portion 33b, such as a coil spring of relatively small diameter, in the same manner as the upper screw shaft 31 and the lower screw shaft 32. Is bonded (welded) between the support plates 31a and 32a of the X-axis with respect to the shaft center. At this time, the bushing buffer portion 33c is a size that can wrap the spring buffer portion 33b has a hollow core shape, but is formed of a buffer material such as rubber, urethane, silicone, etc., and the support plates 31a and 32a. Located between the coupled to the spring buffer 33b to surround the predetermined spaced apart.

These shock absorbing parts 33b and 33c are more effective in shock absorbing as the contraction and relaxation are attenuated by an operation method such as spring damping.

As shown in FIG. 5F, the yet another shock absorbing bolt 30 combines the spring shock absorbing portion 33b and the bushing shock absorbing portion 33d having a different shape by the spring damper method described above, and the upper screw shaft 31. ) And the spring buffer part 33b is not welded between the support plates 31a and 32a of the lower screw shaft 32, and the bushing buffer part 33d opens the annular plate fixing grooves 33e and 33f. It is preferable that the edge portions of the support plates 31a and 32a are inserted in the upper and lower portions of the inner circumferential surface, respectively, in the plate fixing grooves 33e and 33f.

The buffer bolt 30 has the advantage that the welding process can be omitted.

The buffer bolt 30 provided in the present invention basically compresses and relaxes repeatedly for a finite period of time to correspond to various external forces such as shock and vibration, which are temporarily or periodically transmitted, so that the external force is directly applied to the guide plate. It prevents the transmission and thereby prevents physical damage to important parts of the DVR such as a motor-driven auxiliary memory device mounted on the guide plate.

In addition, the buffer bolt 30 provided in the present invention, as the vibrations, etc. generated from the auxiliary storage device are alleviated in the buffer bolt 30, so that the overall noise and vibration of the DVR are relatively reduced by not being directly transmitted to the lower casing. It will also play a role.

As described in detail above, the digital video recorder having a buffer device of the present invention combines an auxiliary memory device mounted therein with a guide plate and a plurality of buffer bolts, so that the digital video recorder can be transferred through the main body during transport, movement, installation and fall. By physically buffering the external force, there is an advantage that can securely protect the auxiliary memory.

In addition, the digital video recorder having a shock absorber of the present invention not only relieves the magnitude of the external force transmitted in the axial direction by the shock absorbing portion of the shock absorbing bolt, but also has a wing portion of a plurality of guide plates to which the shock absorbing bolt is coupled. In the horizontally connected flat plate part, it acts like a leaf spring, thereby reducing the magnitude of the external force secondly, and also distributing the external force through the flat plate part, which is very simple and very effective. have.

In addition, the digital video recorder having a shock absorber of the present invention does not directly transmit vibrations, etc. generated from the auxiliary memory by the guide plate and the buffer bolt, to the lower casing, thereby reducing the overall noise and vibration of the digital video recorder. It works.

The digital video recorder having the buffer device of the present invention can physically alleviate the size of the external force that can be transferred to the auxiliary memory device so that important data to be stored semi-permanently can be safely stored in the auxiliary memory device. There is an effect that can ensure the reliability from.

Claims (7)

In the digital video recorder in which the auxiliary storage device 1 is incorporated in the casings 11 and 12, Lower nuts 14a-14d fixed to a plurality of points on the surface of the casing 12; A plurality of buffers having a buffer portion 33 axially incorporated between the lower screw shaft 32 screwed to the lower nuts 14a to 14d and the support plates 31a and 32b of the upper screw shaft 31. A bolt 30; It includes a plate-shaped guide plate 20 is fixed to the upper screw shaft 31 of the buffer bolt 30 to the wings (22a ~ 22d), respectively, A digital video recorder having a shock absorber, characterized in that said auxiliary memory device (1) is mounted on a plurality of vertical plates (24) of said guide plate (20). The method of claim 1, The buffer bolt 30 is fixed between the lower screw shaft 32 and the support plate (31a, 32b) of the upper screw shaft 31 by the adhesive layer (34a, 34b) to secure the buffer 33 A digital video recorder having a shock absorber. The method of claim 1, The buffer bolt 30 forms any one of a male screw portion or a female screw portion on the upper and lower portions of the buffer portion 33, and supports plates 31a of each of the upper screw shaft 31 and the lower screw shaft 32. , Male threads 31b, 32b or male threads 31c, 32c formed in the axial direction on the inner surfaces facing each other at 32a, respectively; A digital video recorder having a shock absorber, which is screwed into the unit. The method of claim 1, The buffer bolt 30 is coupled to the upper and lower portions of the spring buffer portion (33a) by welding between the support plate (31a, 32a) of the upper screw shaft 31 and the lower screw shaft (32). Digital video recorder with shock absorber. The method of claim 1, The buffer bolt 30 welds a relatively small diameter spring buffer portion 33b between the upper screw shaft 31 and the support plates 31a and 32a of the lower screw shaft 32 based on the shaft center. A digital video recorder having a shock absorber, characterized in that the hollow bushing buffer portion (33c) is coupled to surround the spring buffer portion (33b) of a relatively small diameter. The method of claim 1, The buffer bolt 30 combines a relatively small diameter spring buffer portion 33b and a hollow bushing buffer portion 33d in a spring damper manner, wherein the upper screw shaft 31 and the lower screw shaft 32 The relatively small diameter spring buffer portion 33b is not welded between the support plates 31a and 32a of the support plate, and the bushing buffer portion 33d is annular plate fixing grooves 33e and 33f. The upper and lower portions of the inner circumferential surface, respectively, and the edge portions of the support plates 31a and 32a are inserted into the plate fixing grooves 33e and 33f. The method according to any one of claims 1 to 6, The buffer portion 33 and the bushing buffer portion (33c, 33d) has a shock absorber, characterized in that formed of at least one buffer material of rubber, urethane, silicone having an elastic force of a size capable of buffering the external force Digital video recorder.