CN215867695U

CN215867695U - NVR machine case structure

Info

Publication number: CN215867695U
Application number: CN202121833972.0U
Authority: CN
Inventors: 张柏寿
Original assignee: Chongqing Unisinsight Technology Co Ltd
Current assignee: Chongqing Unisinsight Technology Co Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-02-18
Anticipated expiration: 2031-08-06

Abstract

The utility model provides an NVR (network video recorder) case structure, and belongs to the field of NVRs. The vibration reduction connection assembly is arranged between the case body and the unit assemblies, and the unit assemblies are connected with the case body in a vibration reduction mode through the vibration reduction connection assembly. According to the utility model, the vibration damping connecting assembly is arranged between the case body and the unit assembly, and the unit assembly and the case body can be flexibly connected through the vibration damping connecting assembly, so that the vibration transmitted from a vibration source to the working unit through the case body is reduced, and the stability of the working unit is ensured.

Description

NVR machine case structure

Technical Field

The utility model belongs to the field of NVR, and particularly relates to an NVR case structure.

Background

NVR is a network video recorder, and can record, store and forward videos on the network, along with the video monitoring industry entering the whole network era, electronic components such as AI chips and the like are rapidly developed, the demand on image algorithms is gradually improved, and the NVR gradually evolves from the original video recording storage function to the edge directions such as video recording, analytic calculation, AI algorithms and the like. The main support for achieving these high performance functions is the ability to perform high speed calculations, powerful external data exchange capabilities, and the ability to maintain reliable operation of these high performance calculations over long periods of time. To maintain the long-term and high-computation work of NVR, especially when high-resolution computing power high-frequency CPU and disk array technologies are added, a powerful and continuous heat dissipation fan is required inside the NVR. However, as the rotation speed of the fan increases, the fan blades will generate strong vibration when rotating at high speed, and the vibration will be transmitted to the hard disk and resonate to a certain extent, which will cause the transmission rate of the magnetic disk to decrease or even no transmission rate, and affect the function of the device. And meanwhile, the damage of the disk can be caused, so that the loss of video data and other important losses can be caused. Especially in desktop applications, high rotational speed vibrations can also cause noise pollution. In the conventional NVR case at present, a fan and a hard disk are rigidly connected and fixed in a screw mode and the like, and no special vibration damping device or structure is provided. The vibration generated by the high-speed operation of the fan is easily transmitted to the hard disk through the case shell, and the performance of the hard disk is affected. Meanwhile, during the vibration transmission process, the rigid contact among all the components can generate great noise.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an NVR chassis structure for solving the problems of poor vibration damping in the NVR chassis in the prior art.

In order to achieve the above and other related objects, the present invention provides an NVR chassis structure, including a chassis body and a unit assembly disposed on the chassis body, where the unit assembly includes a vibration source and a working unit, a vibration damping connection assembly is disposed between the chassis body and the unit assembly, and the unit assembly is flexibly connected to the chassis body through the vibration damping connection assembly.

Optionally, the vibration damping connection assembly includes a vibration damping member and a connection member, the vibration damping member is a flexible body, and the unit assembly and the chassis body are connected to the vibration damping member through the connection member respectively.

Optionally, a part of one of the unit assembly or the chassis body, which is connected to the vibration reduction connecting assembly, is a plate-shaped connecting part, and a part of the other of the unit assembly or the chassis body, which is connected to the vibration reduction connecting assembly, is a planar connecting part; the vibration damping piece is an annular vibration damping washer, an installation through hole used for installing the vibration damping washer is formed in the plate-shaped connecting portion, a clamping groove used for being matched with the installation through hole is formed in the vibration damping washer, the connecting piece is a connecting nail, an end cap is arranged at one end of the connecting nail, and the size of the end cap is larger than that of the installation through hole; when the unit assembly is connected with the case body, the damping washer is clamped on the mounting through hole through the clamping groove, one end of the connecting nail, which is far away from the end cap, penetrates through the damping washer and then is connected to the planar connecting part, and the damping washer and the planar connecting part are pressed between the end cap and the planar connecting part through the end cap.

Optionally, one end of the connecting nail, which is close to the end cap, is further provided with a limiting step for limiting the distance between the end cap and the planar connecting plate, and the limiting step is arranged along the length direction of the connecting nail.

Optionally, a screw thread is arranged at one end of the connecting nail connected with the planar connecting portion, and a threaded hole matched with the screw thread is formed in the planar connecting portion.

Optionally, the damping washer respectively with end cap reaches surface-like connecting portion complex both sides are binding face, be provided with the arch on the binding face, the arch is a plurality of, and is a plurality of the arch is around the central axis of damping washer evenly sets up.

Optionally, a fixing support is fixedly arranged on the case body, and the working unit is connected with the fixing support through the vibration reduction connecting assembly.

Optionally, a mounting bracket is arranged on the vibration source, the vibration source is connected with the mounting bracket through a rubber nail, the rubber nail is a flexible body, and the mounting bracket is connected with the case body through the vibration reduction connecting assembly.

Optionally, an elastic cantilever used for supporting the mounting bracket is further arranged on the mounting bracket, one end of the elastic cantilever is fixedly connected to the mounting bracket, and the other end of the elastic cantilever is attached to the case body.

Optionally, the working unit is a hard disk, and the vibration source is a fan.

As described above, the NVR chassis structure of the present invention has the following beneficial effects: because the damping connecting assembly is arranged between the case body and the unit assembly, the unit assembly and the case body can be connected in a damping mode through the damping connecting assembly, vibration of a vibration source transmitted to the working unit through the case body is reduced, and stability of the working unit is guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of an NVR chassis structure in an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a connection between a fan and a mounting bracket according to an embodiment of the utility model.

Fig. 3 is a schematic cross-sectional view of a connection portion between a hard disk and a fixing bracket according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a vibration-damping washer according to an embodiment of the present invention.

Fig. 5 is an exploded view of a mounting bracket according to an embodiment of the present invention.

Fig. 6 is a schematic view of the mounting bracket shown in fig. 5 according to the embodiment of the present invention.

Reference numerals: fan 1, installing support 2, elastic cantilever 3, damping washer 4, fixed bolster 5, step screw 6, hard disk 7, machine case body 8, installation boss 9, rubber nail 10, sand grip 11.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Referring to fig. 1 to 6, the present embodiment provides an NVR chassis structure, including a chassis body 8 and a unit assembly disposed on the chassis body 8, where the unit assembly includes a vibration source and a working unit, a vibration damping connection assembly is disposed between the chassis body 8 and the unit assembly, and the unit assembly is flexibly connected to the chassis body 8 through the vibration damping connection assembly. In this embodiment, the working unit is a hard disk 7, and the vibration source is a fan 1.

Can pass through damping coupling assembling flexonics between unit subassembly and the quick-witted case body 8, reduce the vibration that the vibration source passes through quick-witted case body 8 to the work unit transmission, guarantee the stability of work unit.

In this embodiment, the damping connection assembly includes a damping member and a connection member, the damping member is a flexible body, and the unit assembly and the chassis body 8 are connected to the damping member through the connection member, respectively. The damping piece is the flexible body, therefore the vibration damping piece can be constantly out of shape, reset when the damping piece, and the damping piece warp the in-process, can turn into internal energy with mechanical energy, attenuates the vibration, has reduced the vibration that the work unit received.

In some embodiments, the vibration damping member is a rubber block, the unit assembly and the case body 8 are connected to the rubber block by screws and the like, and the rubber block plays a role in vibration damping. In this embodiment, a portion of one of the unit modules or the chassis body 8 connected to the vibration damping connection assembly is a plate-shaped connection portion, and a portion of the other of the unit modules or the chassis body 8 connected to the vibration damping connection assembly is a planar connection portion.

As shown in fig. 3 and 4, the damping member is an annular damping washer 4 made of TPU rubber, a mounting through hole for mounting the damping washer 4 is formed in the plate-shaped connecting portion, a clamping groove for matching with the mounting through hole is formed in the damping washer 4, and when the unit assembly is connected to the chassis body 8, the damping washer 4 is clamped to the mounting through hole through the clamping groove.

The connecting piece is the connecting nail, and one of connecting the nail is served and is provided with the end cap, and the size of end cap is greater than the size of installation through-hole. When the unit assembly is connected with the case body 8, one end of the connecting nail far away from the end cap penetrates through the damping gasket 4 and then is connected with the planar connecting part, and then the damping gasket 4 is pressed between the end cap and the planar connecting part through the end cap. Since the plate-shaped connecting portion is caught in the catching groove of the damping washer 4, the plate-shaped connecting portion is also caught on the damping washer 4 when the damping washer 4 is pressed.

Specifically, in this embodiment, a screw thread is disposed at one end of the connecting nail for connecting with the planar connecting portion, and a threaded hole matched with the screw thread is disposed on the planar connecting portion. The connecting nail is connected with the surface-shaped connecting part through threads, so that the connecting nail is convenient to disassemble and assemble, the position of the end cap can be adjusted, and the compression amount of the damping washer 4 is adjusted. Meanwhile, in the embodiment, the connecting nail is a step screw 6, one end of the connecting nail, which is close to the end cap, is also provided with a limiting step for limiting the distance between the end cap and the planar connecting plate, and the limiting step is arranged along the length direction of the connecting nail.

When the connecting nail is connected on the surface-shaped connecting part, the distance between the end cap and the surface-shaped connecting part can be restrained by the limiting step, so that the compression amount of the damping gasket 4 is limited, and the reduction of the damping effect caused by the overlarge compression of the damping gasket 4 and the increase of the rigidity is prevented. Meanwhile, the height of the limiting step is a fixed value, and the limiting step can also provide support when the connecting nail is installed, so that the compression amount of the damping washer 4 when the screw is screwed in place meets the design value.

The both sides that cooperate with end cap and face-shaped connecting portion respectively on the damping packing ring 4 are binding face, are provided with the arch on the binding face, and the arch is a plurality of, and a plurality of archs evenly set up around the central axis of damping packing ring 4. In this embodiment, the protrusions are 8 strip-shaped protruding strips 11, and the protruding strips 11 can reduce the contact area between the damping washer 4 and the planar connecting part and the end cap in the installation process, so that the damping effect is better enhanced. In the embodiment, the mounting bosses 9 are arranged on the planar connecting parts corresponding to the connecting nails, the mounting bosses 9 are easy to process, the surface precision is high, the position precision is higher after mounting, and the vibration damping effect is good.

As shown in fig. 2, in this embodiment, a fixing bracket 5 is fixedly disposed on the chassis body 8, and the working unit is connected to the fixing bracket 5 through a vibration damping connection assembly. The vibration source is provided with a mounting bracket 2, the vibration source is connected with the mounting bracket 2 through a rubber nail 10, and the mounting bracket 2 is connected with the case body 8 through a vibration reduction connecting assembly. The rubber nail 10 is assembled in a drawing assembly mode, and is simple and convenient. Meanwhile, the rubber nails 10 are flexible bodies, and can reduce the transmission of the vibration source to the mounting bracket 2.

As shown in fig. 5 and 6, in some embodiments, the mounting bracket 2 is connected to the bottom of the fan 1, so that the structure is simple and the mounting is convenient. As shown in fig. 1, in the present embodiment, the mounting bracket 2 is connected to a side of the fan 1, at this time, the mounting bracket 2 is further provided with the elastic cantilever 3, one end of the elastic cantilever 3 is fixedly connected to the mounting bracket 2, the other end of the elastic cantilever 3 is attached to a side of the chassis body 8, and the elastic cantilever 3 can improve stability of the mounting bracket 2 and the fan 1, and can also reduce vibration and avoid vibration.

When the NVR works actually, the vibration of the fan 1 is transmitted to the hard disk 7, the mounting support 2 is in flexible connection with the fan 1 through the rubber nails 10, the rubber nails 10 are made of TPU rubber materials, the fixing strength of the fan 1 is guaranteed, and the fan 1 can not break or fall off in the running process and can become a first vibration reduction buffer barrier; the damping washer 4 is clamped on the mounting bracket 2, and the mounting bracket 2 is flexibly connected with the case shell through a step screw 6 to form a secondary damping buffer barrier; hard disk 7 passes through damping packing ring 4 joint on fixed bolster 5, realizes the flexible coupling between fixed bolster 5 and the hard disk 7 through step screw 6, forms third damping buffer barrier. After the fan 1 and the hard disk 7 are installed, the rest parts are isolated and suspended except the connection with the rubber nail 10 and the vibration damping washer 4, so that the vibration of the fan 1 can be effectively prevented from being transmitted to the hard disk 7. The damping washer 4 can be installed on the fixed support 5 or the installing support 2 through the draw-in groove in advance, and does not need the user to install by oneself, realizes that the user installation is simple, improves the user and uses experience.

In conclusion, the unit components and the case body that NVR case structure this embodiment provided can be flexibly connected through the vibration reduction connecting components, so that the vibration of the vibration source transmitted to the working unit through the case body is reduced, and the stability of the working unit is ensured. The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a NVR machine case structure which characterized in that: the vibration reduction connecting assembly is arranged between the case body and the unit assemblies, and the unit assemblies are flexibly connected with the case body through the vibration reduction connecting assembly.

2. The NVR chassis structure of claim 1, wherein: the vibration damping connecting assembly comprises a vibration damping piece and a connecting piece, the vibration damping piece is a flexible body, and the unit assembly and the case body are connected to the vibration damping piece through the connecting piece respectively.

3. The NVR chassis structure of claim 2, wherein: one of the unit assembly or the case body is connected with the vibration reduction connecting assembly in a plate-shaped connection part, and the other of the unit assembly or the case body is connected with the vibration reduction connecting assembly in a planar connection part;

the vibration damping piece is an annular vibration damping washer, an installation through hole used for installing the vibration damping washer is formed in the plate-shaped connecting portion, a clamping groove used for being matched with the installation through hole is formed in the vibration damping washer, the connecting piece is a connecting nail, an end cap is arranged at one end of the connecting nail, and the size of the end cap is larger than that of the installation through hole;

when the unit assembly is connected with the case body, the damping washer is clamped on the mounting through hole through the clamping groove, one end of the connecting nail, which is far away from the end cap, penetrates through the damping washer and then is connected to the planar connecting part, and the damping washer and the planar connecting part are pressed between the end cap and the planar connecting part through the end cap.

4. The NVR chassis structure of claim 3, wherein: one end of the connecting nail, which is close to the end cap, is also provided with a limiting step for restricting the distance between the end cap and the planar connecting plate, and the limiting step is arranged along the length direction of the connecting nail.

5. The NVR chassis structure of claim 3, wherein: the connecting nail is provided with a thread at one end for connecting the planar connecting part, and the planar connecting part is provided with a threaded hole matched with the thread.

6. The NVR chassis structure of claim 3, wherein: the damping washer on respectively with the end cap reaches surface-like connecting portion complex both sides are binding face, be provided with the arch on the binding face, the arch is a plurality of, and is a plurality of the arch is wound the central axis of damping washer evenly sets up.

7. The NVR chassis structure of claim 1, wherein: the machine case body is fixedly provided with a fixed support, and the working unit is connected with the fixed support through the vibration reduction connecting assembly.

8. The NVR chassis structure of claim 1, wherein: the vibration source is provided with a mounting bracket, the vibration source is connected with the mounting bracket through a rubber nail, the rubber nail is a flexible body, and the mounting bracket is connected with the case body through the vibration reduction connecting assembly.

9. The NVR chassis structure of claim 8, wherein: the mounting bracket is further provided with an elastic cantilever for supporting the mounting bracket, one end of the elastic cantilever is fixedly connected to the mounting bracket, and the other end of the elastic cantilever is attached to the case body.

10. An NVR chassis structure according to any one of claims 1 to 9, wherein: the working unit is a hard disk, and the vibration source is a fan.