CN112904655B

CN112904655B - Radiator, safety processing module and projector

Info

Publication number: CN112904655B
Application number: CN201911223109.0A
Authority: CN
Inventors: 邓高飞; 刘宪; 张茁; 余新
Original assignee: Appotronics Corp Ltd
Current assignee: Shenzhen Appotronics Corp Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2023-08-29
Anticipated expiration: 2039-12-03
Also published as: WO2021109779A1; CN112904655A

Abstract

The invention provides a radiator which is used for a safety processing module and is arranged in an inner space of the safety processing module so as to radiate the inner space of the safety processing module; the radiator comprises a radiating fin body and a blocking structure which is connected with the radiating fin body and used for blocking external detection of the safety processing module. The invention also provides a safety processing module and a projector applying the radiator. Compared with the related art, the radiator, the safety processing module and the projector have the advantages of good ventilation condition, good system heat dissipation performance and low noise.

Description

Radiator, safety processing module and projector

[ field of technology ]

The present invention relates to the field of projector technologies, and in particular, to a radiator, a security processing module, and a projector.

[ background Art ]

An important component of the projector is a security processing module (Secure Processing Block, SPB for short). The security processing module has physical protection boundaries that prevent access to and detection of its internal circuitry, thereby providing physical protection for the internal security entity.

In order to dissipate heat from devices inside the safety processing module, a heat sink is generally provided in an inner space thereof. In order to meet the purpose of access detection prevention of the safety processing module, some projector covers are arranged on the outer shell of the safety processing module at the periphery of the radiator and are arranged in a labyrinth structure. The labyrinth structure can obstruct the view, and an observer cannot see the internal devices of the projector without using special tools. However, in this scheme, the design of the shell structure is more complex, and the volume is bigger, and the resistance of the system air duct is bigger, and the fan with bigger size and thicker thickness has to be selected in order to meet the heat dissipation requirement, thereby further causing the whole size of the projector to be increased, and simultaneously bringing bigger noise.

Therefore, it is necessary to provide a new heat sink, a security processing module and a projector to solve the above technical problems.

[ invention ]

The invention aims to overcome the technical problems and provide a radiator, a safety processing module and a projector, which have the advantages of good ventilation condition, good system heat dissipation performance and low noise.

In order to achieve the above object, the present invention provides a radiator, which is used for a safety processing module and is disposed in an internal space of the safety processing module to radiate heat of the internal space of the safety processing module, wherein the radiator comprises a radiating fin body and a blocking structure connected with the radiating fin body and used for blocking external detection of the safety processing module.

More preferably, the blocking structure is a slope having a preset width and a preset inclination angle; the magnitude of the tilt angle is inversely related to the width of the blocking structure and the width of the heat radiating fin.

More preferably, the heat dissipation fin comprises 1 or more of the blocking structures.

More preferably, the inclination angle between the inclined plane and the radiating fin body is one or more of an acute angle, an obtuse angle and a right angle.

More preferably, the blocking structure is disposed at one end of the heat dissipation fin close to the housing of the safety processing module and/or at one end of the heat dissipation fin far away from the housing of the safety processing module.

More preferably, the blocking structure is disposed at a middle position of the heat radiating fin.

More preferably, the blocking structure is a cambered surface.

More preferably, the radiating fins comprise a plurality of radiating fins, the radiating fins are arranged in parallel, and a radiating air channel is arranged between two adjacent radiating fins.

The invention also provides a safety processing module, which further comprises the radiator, a shell and a vent penetrating through the shell, wherein the vent is communicated with the radiator, and the vent comprises one or more than one vent.

The invention further provides a projector, which comprises the safety processing module.

Compared with the prior art, the radiator, the safety processing module and the projector are provided with the blocking structure for blocking the detection of the outside of the safety processing module through the radiating fins, and the blocking structure is connected with the radiating fin body of the radiating fins. The structure does not need to set the shell of the safety processing module into a labyrinth structure, and the resistance of the air duct of the system is smaller, so that the ventilation condition of the projector is good, the heat dissipation performance of the system is good and the noise is low. More preferably, the blocking structure is provided as a bevel or a cambered surface. The structure can ensure that the inner board card, the wire rod and the like of the projector are invisible, and ensure that an observer cannot extend into a simple tool from the outside, namely, cannot acquire information in the projector, that is, the structure meets the tamper-proof requirement.

[ description of the drawings ]

For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic perspective view of a safety processing module according to the present invention;

FIG. 2 is an exploded view of a safety processing module according to the present invention

FIG. 3 is a schematic perspective view of a radiator according to the present invention;

FIG. 4 is a schematic view of a radiator according to another embodiment of the present invention;

FIG. 5 is an exploded view of a radiator according to the present invention;

FIG. 6 is a schematic view of a first structure of a heat dissipating fin of the heat sink of the present invention;

FIG. 7 is a schematic view of a second structure of a heat dissipating fin of the heat sink of the present invention;

FIG. 8 is a schematic view of a third configuration of a heat sink fin of the heat sink of the present invention;

FIG. 9 is a schematic view of a fourth configuration of a fin of the heat sink of the present invention;

FIG. 10 is a top view of a heat sink fin of the heat sink of the present invention;

fig. 11 is a cross-sectional view taken along line A-A of fig. 10.

[ detailed description ] of the invention

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-11, the present invention provides a heat sink 100 and a security processing module 200. The heat sink 100 is used for a safety processing module and is disposed in an internal space of the safety processing module 200 to dissipate heat from the internal space of the safety processing module 200.

The safety processing module 200 has an inner space surrounded by the housing 2 outside thereof, and the heat sink 100 is disposed in the inner space of the safety processing module. Specifically, the safety processing module 200 includes the heat sink 100 and a housing 2, and the housing 2 is provided with a ventilation opening 20. The ventilation opening 20 communicates with the radiator 100 to ensure that the air channel of the radiator 100 is unobstructed. The vent 20 includes one or more. The vent hole 20 is used to communicate the radiator 100 with the outside air, and this structure facilitates the radiator 100 to directly transfer heat to the outside. The vent holes 20 may have any of a circular shape, a hexagonal shape, and a diamond shape. Of course, a variety of shape combinations are also possible.

The heat sink 100 includes a heat conductive member 3 and heat radiating fins 1. The heat conducting member 3 includes a heat conducting member body 31 and a plurality of heat conducting strips 32 extending from the heat conducting member body 31 and disposed at intervals from each other. The heat conductive member body 31 is used for absorbing heat generated by the heat source. The heat conducting strip 32 is used for transferring the heat absorbed by the heat conducting member body 31 to the heat radiating fin 1. The configuration of the plurality of thermally conductive strips 32 allows for more efficient heat transfer.

The heat radiating fin 1 is connected with the heat conducting member 3. The heat radiating fin 1 transfers the heat transferred from the heat conductive member 3 to the outside.

In this embodiment, the heat dissipation fins 1 include a plurality of heat dissipation fins 1, and in one embodiment, a plurality of heat dissipation fins 1 are disposed parallel to each other. Two adjacent radiating fins 1 are spaced to form a radiating air duct 10. The heat dissipation duct 10 transfers the heat transferred from the heat conduction member 3 to the outside through air circulation.

Specifically, the heat dissipation fin 1 includes a heat dissipation fin body 11 and a blocking structure 12, and the blocking structure 12 is connected to the heat dissipation fin body 11. In one embodiment, the blocking structure is integrally provided with the fin body.

The heat dissipation fin body 11 and the blocking structure are used for absorbing and further transferring the heat transferred from the plurality of heat conducting strips 32.

The heat radiating fin 1 includes 1 or more of the blocking structures 12. The blocking structure 12 is used for blocking external detection of the safety processing module and ensuring that a radiating air channel of the radiating fin is unblocked. In order to better describe the principle that the blocking structure blocks external detection, one end of the radiating fin 1, which is close to the shell of the safety processing module, is defined as a first surface F1; the end of the radiating fin 1, which is far away from the shell of the safety processing module, is defined as a second surface F2. Since the heat dissipation fins 1 are plural, one end of the heat dissipation fins 1 close to the housing of the safety processing module forms the first surface F1 together, and one end of the heat dissipation fins 1 far from the housing of the safety processing module forms the second surface F2 together.

In this embodiment, the blocking structure 12 is a slope having a predetermined width and a predetermined inclination angle. Of course, without being limited thereto, other structures that block the detection outside the security processing module are also possible, such as: the blocking structure 12 may also be a cambered surface. The structure of the blocking structure 12 can ensure that the internal board card, wire and the like of the safety processing module are invisible, and ensure that an observer cannot extend into a simple tool from the outside, namely, the information in the safety processing module is detected, that is, the structure meets tamper-proof regulations and can meet the heat dissipation requirement of internal devices of the safety processing module.

Referring to fig. 6, the blocking structure 12 is disposed at a middle position of the heat dissipation fin 1. Of course, without being limited thereto, the blocking structure is provided at an end of the heat radiating fin close to the housing of the safety processing module and/or an end of the heat radiating fin remote from the housing of the safety processing module. That is, the blocking structure 12 is disposed on the first face F1 and/or the second face F2.

Referring to fig. 7-8, the blocking structure 12 is disposed on the first surface F1 and the second surface F2. That is, the heat radiating fin 1 includes one heat radiating fin body 11 and two blocking structures 12. The heat dissipation fin body 11 is located in the middle, and the two blocking structures 12 are disposed at two ends of the heat dissipation fin body 11. Specifically, referring to fig. 7, two blocking structures 12 are disposed on opposite sides of the fin body 11.

Referring to fig. 9, the blocking structure 12 is disposed on the first surface F1 or the second surface F2. That is, the heat radiating fin 1 includes one heat radiating fin body 11 and one blocking structure 12.

The above-mentioned heat dissipation fin 1 is configured so that the heat sink 100 has a better effect of blocking the sight line of the observer. The embodiments of fig. 6-9 may be combined in any desired manner.

The inclination angle between the inclined plane and the radiating fin body 11 is one or more of an acute angle, an obtuse angle and a right angle. Wherein the magnitude of the inclination angle is inversely related to the width of the blocking structure 12 and the width of the heat radiating fin 1.

Referring to fig. 10, in the present embodiment, the heat dissipation fin 1 is formed by two parts connected to each other, the first part is specifically formed by one heat dissipation fin body 11 and one blocking structure 12, and the second part is specifically formed by one heat dissipation fin body 11 and two blocking structures 12. The distance of the heat radiating fin 1 defining the first portion from the second face F2 to the first face F1 is defined as a first fin width W1. The distance of the heat radiating fin 1 defining the second portion from the second face F2 to the first face F1 is defined as a second fin width W2. The barrier structure 12 comprises two, the width of the barrier structure 12 defined adjacent to the first face F1 being defined as a first barrier structure width W3. The width of the barrier structure 12 defined adjacent to the second face F2 is defined as a second barrier structure width W4.

Referring to fig. 11, an inclination angle between the blocking structure 12 and the fin body 11 defining the first portion is a first bending angle a. The inclination angle between the blocking structure 12 and the fin body 11 defining the other side of the second portion is a second bending angle β. The first fin width W1 is inversely related to the first bending angle a. The negative correlation is that if the width W1 of the first fin is larger, the first bending angle a can be smaller, so that a good ventilation effect can be satisfied, and meanwhile, the blocking of the sight of an observer can be ensured. Similarly, the second bending angle β is inversely related to the second fin width W2. The larger the value of the first fin width W1 or the second fin width W2, but this causes the projector to become large in size, which is disadvantageous in miniaturization. In practical design, the ventilation effect and the volume are required to be balanced. That is, the first fin width W1 is balanced with the first bending angle a, and the second fin width W2 is balanced with the second bending angle β.

For the blocking structure 12, the first blocking structure width W3 is inversely related to the first bending angle a. The negative correlation is that if the width W3 of the first blocking structure is larger, the first bending angle a can be smaller, so that a good ventilation effect can be satisfied, and meanwhile, the blocking of the sight of an observer can be ensured. Similarly, the second bending angle β is inversely related to the second blocking structure width W4. Wherein, because the second fin width W2 is smaller than the first fin width W1, and the space inside the space is used for placing the internal device of the projector, the second bending angle β is larger than the first bending angle a. That is, the angle of the inclination angle of the second blocking structure width W4 is large, which is advantageous in that the heat radiating fin 221 effectively blocks the line of sight of the observer.

Weighted and optimized, in one embodiment, the first fin width W1 is 98cm and the first bend angle a is 165 °. The width W2 of the second fin is 30cm, and the second bending angle beta is 172 degrees. The above arrangement of design data allows the heat sink 100 to effectively block the view of an observer. The structure meets the tamper-proof requirement.

The invention also provides a projector 300 (not shown), said projector 300 comprising said security processing module 200.

While the invention has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the invention.

Claims

1. A radiator for a safety process module and provided in an inner space of the safety process module, the safety process module having a vent through which the radiator conducts internal heat of the safety process module to the outside, characterized in that the radiator comprises a radiating fin comprising two parts connected to each other, a first part comprising a radiating fin body and a blocking structure; the second part comprises a radiating fin body and two blocking structures; the fin width of the radiating fin body of the second part is smaller than that of the radiating fin body of the first part; the second bending angle of the blocking structure arranged at one end of the second part far away from the shell of the safety processing module is larger than the first bending angle of the blocking structure of the first part; the blocking structure blocks the outside from detecting the internal space of the safety processing module by blocking the ventilation opening.

2. The heat sink of claim 1, wherein the blocking structure is a slope having a predetermined width and a predetermined inclination angle; the magnitude of the tilt angle is inversely related to the width of the blocking structure.

3. The heat sink of claim 2, wherein an inclination angle between the inclined surface and the heat radiating fin body is one or more of an acute angle, an obtuse angle, and a right angle.

4. A heat sink according to any one of claims 1-3, wherein the blocking structure of the first part is arranged at an end of the heat radiating fin close to the housing of the safety process module; one of the blocking structures of the second part is arranged at one end of the radiating fin close to the shell of the safety processing module, and the other blocking structure of the second part is arranged at one end of the radiating fin far away from the shell of the safety processing module.

5. The heat sink of claim 1, wherein the blocking structure is a cambered surface.

6. The radiator according to claim 1, wherein the radiating fins comprise a plurality of radiating fins, the radiating fins are arranged in parallel, and a radiating air channel is arranged between two adjacent radiating fins.

7. A safety handling module comprising a heat sink as claimed in any one of claims 1 to 6, the safety handling module further comprising a housing and a vent therethrough, the vent being in communication with the heat sink, the vent comprising one or more.

8. A projector comprising the security processing module of claim 7.