CN215773687U

CN215773687U - Heat radiation structure of video transmission equipment and video transmission equipment

Info

Publication number: CN215773687U
Application number: CN202120651324.7U
Authority: CN
Inventors: 曾泓瀚; 胡富伟
Original assignee: Shenzhen Yunhan Technology Co ltd
Current assignee: Shenzhen Yunhan Technology Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2022-02-08
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a heat dissipation structure of video transmission equipment and the video transmission equipment, wherein the heat dissipation structure of the video transmission equipment comprises: the PCB heat dissipation box comprises a box body and a PCB arranged in the box body, wherein a heat dissipation sheet is arranged on the PCB, the box body comprises a metal shell, and the heat dissipation sheet is connected with the metal shell. According to the utility model, the metal shell is connected with the radiating fins, so that the metal shell can increase the radiating area and has a good radiating effect; the method has the advantages that the method can avoid the formation of the heat dissipation holes on the box body, save the working procedure of processing the heat dissipation holes, save manpower and material resources, improve the production efficiency of the video transmission box and reduce the cost; the utility model has good dustproof and waterproof effects because no heat dissipation holes are required, and provides a relatively safe and stable working environment for the PCB in the box body.

Description

Heat radiation structure of video transmission equipment and video transmission equipment

Technical Field

The utility model relates to the technical field of video transmission, in particular to a heat dissipation structure of video transmission equipment and the video transmission equipment.

Background

Video needs to be transmitted through video transmission ware, and video transmission ware is installed in video transmission box, video transmission box is enclosed to close by bottom plate and shell usually and forms, prior art's video transmission box need set up the heat dissipation that the louvre is used for video transmission ware, and the louvre leads to dust or liquid to get into in the video transmission box easily, if can influence video transmission ware normal work in the liquid gets into the video transmission box, if the dust gets into from the louvre, daily accumulation and monthly are tired, the louvre can be blockked up to the dust, slow down the air flow in the video transmission box, and then can influence video transmission ware's radiating effect.

Therefore, the prior art has yet to be improved.

SUMMERY OF THE UTILITY MODEL

The inventors have found a problem in the prior art.

The present invention aims to alleviate or solve at least to some extent at least one of the above mentioned problems. The utility model provides a heat dissipation structure of video transmission equipment and the video transmission equipment, wherein the heat dissipation structure of the video transmission equipment comprises: including the box body and locate PCB circuit board in the box body, be provided with the fin on PCB circuit board's the CPU, the box body includes metal casing, the fin with metal casing connects.

In one embodiment, a first thermally conductive layer is disposed between the metal shell and the heat sink.

In one embodiment, the first heat conduction layer is a heat dissipation silicone cushion layer.

In one embodiment, a second thermally conductive layer is disposed between the CPU and the heat sink.

In one embodiment, the second heat conduction layer is a heat dissipation silicone cushion layer.

In one embodiment, the metal housing is an aluminum housing or an aluminum alloy housing.

In one embodiment, the cartridge further comprises:

a bottom plate connected with the bottom of the metal shell,

and an inner shell positioned between the metal outer shell and the bottom plate.

In one embodiment, the inner shell is embedded in the inner wall of the metal outer shell, and the inner shell is provided with a heat dissipation connecting hole for connecting the heat dissipation sheet with the metal outer shell.

In one embodiment, the inner shell is fixedly connected with the bottom plate through bolts, and the inner shell is connected with the metal outer shell in a buckling mode.

A video transmission apparatus comprising a heat dissipation structure of a video transmission apparatus as described above. Therefore, the video transmission device can have all structural features and beneficial effects of the heat dissipation structure of the video transmission device, and details are not repeated herein.

The utility model has the beneficial effects that: according to the utility model, the metal shell is connected with the radiating fins, so that the metal shell can increase the radiating area and has a good radiating effect; the method has the advantages that the method can avoid the formation of the heat dissipation holes on the box body, save the working procedure of processing the heat dissipation holes, save manpower and material resources, improve the production efficiency of the video transmission box and reduce the cost; the utility model has good dustproof and waterproof effects because no heat dissipation holes are required, and provides a relatively safe and stable working environment for the PCB in the box body.

Drawings

Fig. 1 is an exploded view of a heat dissipation structure of a video transmission device according to the present invention.

Fig. 2 is an exploded view of a heat dissipation structure of a video transmission device according to the present invention.

Fig. 3 is an exploded view of an embodiment of a heat dissipation structure of a video transmission device according to the present invention.

Fig. 4 is a schematic structural view of an inner case provided by the present invention.

Fig. 5 is a schematic structural diagram of a metal housing provided by the present invention.

Fig. 6 is a schematic structural diagram of another view angle of the metal shell provided by the present invention.

Reference numerals:

100	box body	150	Base bolt column
				200	PCB circuit board	160	Separation distance
300	Heat sink	170	Round corner
				400	The first heat conducting layer	180	Chamfering
500	The second heat conducting layer	210	CPU
				110	Metal shell	131	Heat radiation connecting hole
120	Base plate	310	First bolt
				130	Inner shell	610	Male buckle
140	Second bolt	620	Female button

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Based on the problems in the prior art, this embodiment provides a heat dissipation structure of a video transmission device, and as shown in fig. 1 specifically, the heat dissipation structure of the video transmission device in this embodiment includes: the PCB heat dissipation structure comprises a box body 100 and a PCB 200 arranged in the box body 100, wherein a heat dissipation sheet 300 is arranged on a CPU of the PCB 200, the box body 100 comprises a metal shell 110, and the heat dissipation sheet 300 is connected with the metal shell 110.

The working principle of the heat dissipation structure of the video transmission device provided by the embodiment is as follows:

the video transmission box of prior art is enclosed to close by bottom plate and shell usually and forms, the shell need set up the louvre and be used for the heat dissipation of video transmission ware, firstly, the air flow is little in the video transmission box, the radiating effect is unsatisfactory, secondly, the louvre leads to dust or liquid to get into in the video transmission box easily, if liquid gets into in the video transmission box and probably influence video transmission ware normal work, if the dust gets into from the louvre, it is accumulated in every day, the louvre can be blockked up to the dust, slow down the air flow in the video transmission box, and then can influence video transmission ware's radiating effect.

In this embodiment, the heat dissipation structure of the video transmission device is connected to the metal casing 110 by the heat dissipation fins 300, the heat generated by the CPU210 on the PCB 200 is transferred to the metal casing 110 by the heat dissipation fins 300, and then the heat is dissipated through the metal casing 110, so that the heat dissipation area of the metal casing 110 can be greatly increased, the heat dissipation effect is good, and the heat dissipation holes can be prevented from being formed in the casing, thereby providing a relatively safe and stable working environment for the PCB 200.

The heat dissipation structure of the video transmission device provided by the embodiment has the beneficial effects that:

in the embodiment, the metal shell is connected with the radiating fins, so that the metal shell can increase the radiating area and has a good radiating effect;

the heat dissipation holes are prevented from being formed in the box body, so that the structure can be simplified, the working procedure of machining the heat dissipation holes is saved, the labor and the material resources are saved, the production efficiency of the video transmission box is improved, and the cost is reduced;

because no heat dissipation holes are required to be formed, the dustproof and waterproof effect is good, and a relatively safe and stable working environment is provided for the PCB in the box body.

In one embodiment, as shown in fig. 2, a first thermally conductive layer 400 is disposed between the metal housing 110 and the heat sink 300, and a second thermally conductive layer 500 is disposed between the CPU210 and the heat sink 300. In this embodiment, the PCB 200 is disposed on the bottom plate 120, the CPU210 of the PCB 200 is disposed with the second heat conducting layer 500, the second heat conducting layer 500 is disposed with the heat sink 300, the second heat conducting layer 500 is respectively attached to the CPU210 and the heat sink 300, meanwhile, the heat sink 300 is fixedly connected to the bottom plate 120 by the first bolt 310, the heat sink 300 is disposed with the first heat conducting layer 400, the first heat conducting layer 400 is disposed with the metal housing 110, and the first heat conducting layer 400 is respectively attached to the heat sink 300 and the metal housing 110.

The function of the second heat conduction layer in this embodiment is: the gap between the CPU and the radiating fin can be filled, the heat transfer between the CPU and the radiating fin is completed, the stable connection between the CPU and the radiating fin is ensured, the separation phenomenon between the CPU and the radiating fin can be avoided, the effect of the heat transfer between the CPU and the radiating fin is further influenced, and the effects of insulation, vibration reduction and sealing are achieved.

The first heat conduction layer in the embodiment has the following functions: the gap between the radiating fin and the metal shell can be filled, the heat transfer between the radiating fin and the metal shell is completed, the stable connection between the radiating fin and the metal shell is ensured, the phenomenon that the radiating fin is separated from the metal shell can be avoided, the effect of the heat transfer between the radiating fin and the metal shell is further influenced, and the effects of insulation, vibration reduction and sealing are achieved.

Preferably, the first heat conduction layer 400 and the second heat conduction layer 500 are both heat dissipation silicone rubber pads. The heat dissipation silica gel bed course can fill the gap between the piece that generates heat and the radiating part, accomplish the heat transfer between the piece that generates heat and the radiating part, guarantee the stable connection between the piece that generates heat and the radiating part, can avoid the piece that generates heat and the radiating part phenomenon of breaking away from to appear, and then the effect of the heat transfer between the piece that generates heat and the radiating part is influenced, the heat dissipation silica gel bed course has insulating, damping and sealed effect simultaneously. It should be understood that the first thermally conductive layer 400 and the second thermally conductive layer 500 are not limited to the above thermal silicone rubber pad, and may be other situations, which are not limited herein.

Optionally, the metal shell 110 is an aluminum shell or an aluminum alloy shell. Such as an aluminum housing, has the advantage of having a high thermal conductivity, e.g., aluminum has a thermal conductivity 3 times greater than iron; the paint has good ductility, is easy to process and form; a compact oxide protective film can be formed on the surface of the aluminum, and the aluminum is not easy to corrode; the price of aluminum is inexpensive compared to copper, and therefore, the cost of the metal case can be reduced. The aluminum alloy also has the characteristics of low density, light weight, good mechanical property, good processing property, no toxicity, easy recovery, excellent heat transfer property, corrosion resistance and the like. It should be understood that the metal casing 110 is not limited to the aluminum casing or the aluminum alloy casing, but may be other cases, and is not limited thereto.

In one embodiment, with reference to fig. 1 and 3, the box 100 includes: the PCB comprises a base plate 120, an inner shell 130 and a metal outer shell 110, wherein the base plate 120 is connected with the bottom of the metal outer shell 110 to form a box body with an installation space in a surrounding manner, a PCB 200 is fixedly arranged on the base plate 120, a CPU210 on the PCB 200 is provided with a heat sink 300, and a heat dissipation silica gel cushion layer is covered and arranged between the CPU210 and the heat sink 300, wherein the top of the heat sink 300 is connected with the metal outer shell 110, and the heat dissipation silica gel cushion layer is covered and arranged between the heat sink 300 and the metal outer shell 110; the inner shell 130 is located between the metal outer shell 110 and the base plate 120. Specifically, the inner shell 130 is fixedly connected to the bottom plate 120 by a second bolt 140, the inner shell 130 is embedded on the inner wall of the metal outer shell 110, the inner shell 130 is connected to the metal outer shell 110 in a snap-fit manner, and a heat dissipation connection hole 131 for connecting the heat dissipation fin 300 to the metal outer shell 110 is formed in the top of the inner shell 130.

In the present embodiment, the metal housing 110 is connected to the heat sink 300, the heat sink 300 is connected to the CPU210, the PCB 200 is disposed on the bottom plate 120 of the box 100, and it can be known from the position relationship that the external force acting on the top of the metal housing 110 is directly transmitted to the PCB 200 (the box in the present embodiment is rectangular, easy to process and manufacture, and easy to install, which easily causes the external force to be perpendicular to the PCB, if the metal housing is provided with a spherical shape or other shapes, which prevents the external force from being perpendicular to the PCB, but increases the cost and the installation difficulty), in the above embodiment, the metal housing 110 is an aluminum housing, the top of the aluminum housing is easily deformed by the external force, the metal housing 110 is easily deformed by the external force, and thus the inner housing 130 is embedded in the metal housing 110 (specifically, the side of the inner housing 130 is attached to the side of the metal housing 110, the top of the inner shell 130 is attached to the top of the metal outer shell 110), the inner shell 130 is fastened to the metal outer shell 110 (referring to fig. 4 and 5, a male buckle 610 is arranged on the side of the inner shell 130, the metal outer shell 110 is provided with a female buckle 620 matched with the male buckle 610, the male buckle 610 is fastened to the female buckle 620 at the corresponding position), the inner shell 130 is fixedly connected to the base plate 120 through a second bolt 140, the inner shell 130 has the function of supporting the metal outer shell 110, the metal outer shell 110 is prevented from deforming, the PCB circuit 200 is further protected, in addition, the inner shell 130 can enable the metal outer shell 110 to be rapidly assembled, the metal outer shell 110 does not need to be provided with bolts, the processing is easy, the production flow of the metal outer shell is simplified, and the cost is saved.

Optionally, the inner shell 130 is a plastic outer shell, and the plastic has good insulation, electrical insulation, arc resistance, and vibration absorption. The plastic housing can effectively support the metal housing 110, preventing the metal housing 110 from being deformed. It should be understood that the inner shell is not limited to the plastic outer shell, and other situations are possible, and is not limited herein.

Optionally, with reference to fig. 1 and 6, the bottom plate 120 is rectangular, the metal shell 110 is rectangular, the corner position of the bottom plate 120 is set to be a rounded corner 170, the corner position of the metal shell 110 is set to be a rounded corner 170, and the position where the top and the side of the metal shell 110 are connected is set to be a chamfered corner 180. From this, bottom plate 120 and metal casing 110 enclose to close and form square box, and bottom plate 120 is square setting, and metal casing 110 is the rectangular channel setting, and easily processing like this can improve production efficiency, saves manufacturing cost. And the fillet 170 and the chamfer 180 of box body reduce stress concentration, avoid taking place to collide with and cause the damage.

Alternatively, as shown in fig. 1, the inner shell 130 and the bottom plate 120 are fixedly connected by 4 second bolts 140. The 4 second bolts 140 are respectively located at corner positions of the base plate 120. Therefore, the corner position bottom plate 120 can be prevented from tilting, the structure is simple, and the connection is stable. It should be understood that the inner shell 130 and the bottom plate 120 are not limited to the above-mentioned fixed connection by the 4 second bolts 140, and may be in other situations, which are not limited herein.

Preferably, as shown in fig. 1, the base plate 120 is screw-coupled to the PCB circuit board 200, and the second bolt 140 between the base plate 120 and the PCB circuit board 200 and the second bolt 140 between the inner case 130 and the base plate 120 are common. The second bolt 140 sequentially penetrates through the bottom plate 120 and the PCB 200 and then is connected with the inner housing 130 by a thread, that is, the bottom plate 120 is sequentially fixedly connected with the PCB 200 and the inner housing 130 by the second bolt 140. The arrangement can save assembly time, materials and cost.

Specifically, as shown in fig. 1, a spacing distance 160 is provided between the bottom plate 120 and the PCB 200, a base bolt column 150 is provided on the bottom plate 120, the PCB 200 is erected on the base bolt column 150, and the second bolt 140 penetrates through the base bolt column 150 and is fixedly connected to the PCB 200 and the inner casing 130, respectively. Base bolt column 150 can make bottom plate 120 and PCB circuit board 200 keep certain spacing distance 160, therefore, base bolt column 150 has heat dissipation, waterproof effect, if there is the infiltration phenomenon in the bottom plate, base bolt column 150 can separate PCB circuit board 200 and bottom plate 120 certain distance, can provide a relatively safe operational environment for PCB circuit board.

A video transmission apparatus comprising the heat dissipation structure of the video transmission apparatus as described in the above embodiments. Therefore, the video transmission device can have all the structural features and beneficial effects of the video transmission device, and the details are not repeated herein.

In summary, the present invention provides a heat dissipation structure of a video transmission device and a video transmission device, where the heat dissipation structure of the video transmission device includes: the PCB heat dissipation box comprises a box body and a PCB arranged in the box body, wherein a heat dissipation sheet is arranged on the PCB, the box body comprises a metal shell, and the heat dissipation sheet is connected with the metal shell. According to the utility model, the metal shell is connected with the radiating fins, so that the metal shell can increase the radiating area and has a good radiating effect; the heat dissipation holes are prevented from being formed in the box body, so that the structure can be simplified, the working procedure of machining the heat dissipation holes is saved, the labor and the material resources are saved, the production efficiency of the video transmission box is improved, and the cost is reduced; the utility model has good dustproof and waterproof effects because no heat dissipation holes are required, and provides a relatively safe and stable working environment for the PCB in the box body.

It is to be understood that the utility model is not limited in its application to the details of the examples set forth above, and that modifications and variations may be effected therein by those of ordinary skill in the art in light of the above teachings, all of which are intended to be encompassed by the present invention.

Claims

1. A heat radiation structure of video transmission equipment comprises a box body and a PCB arranged in the box body, and is characterized in that a heat radiation fin is arranged on a CPU of the PCB, the box body comprises a metal shell, and the heat radiation fin is connected with the metal shell;

a first heat conduction layer is arranged between the metal shell and the radiating fin;

and a second heat conduction layer is arranged between the CPU and the radiating fin.

2. The heat dissipation structure of a video transmission device according to claim 1, wherein the first heat conduction layer is a heat-dissipating silicone cushion layer.

3. The heat dissipation structure of a video transmission device according to claim 1, wherein the second heat conduction layer is a heat-dissipating silicone cushion layer.

4. The heat dissipation structure of video transmission equipment according to claim 1, wherein the metal casing is an aluminum casing or an aluminum alloy casing.

5. The heat dissipation structure of a video transmission apparatus according to claim 1, wherein the case further comprises:

a bottom plate connected with the bottom of the metal shell,

6. The heat dissipation structure of video transmission equipment according to claim 5, wherein the inner casing is embedded in an inner wall of the metal outer casing, and a heat dissipation connection hole for connecting the heat dissipation fin with the metal outer casing is provided in the inner casing.

7. A video transmission apparatus characterized in that the video transmission apparatus comprises the heat dissipation structure of the video transmission apparatus according to any one of claims 1 to 6.