WO2021109779A1

WO2021109779A1 - Radiator, secure processing block, and projector

Info

Publication number: WO2021109779A1
Application number: PCT/CN2020/126539
Authority: WO
Inventors: 邓高飞; 刘宪; 张茁; 余新
Original assignee: 深圳光峰科技股份有限公司
Priority date: 2019-12-03
Filing date: 2020-11-04
Publication date: 2021-06-10
Also published as: CN112904655B; CN112904655A

Abstract

A radiator (100), a secure processing block using same, and a projector. The radiator (100) is used for a secure processing block and is disposed in the internal space of the secure processing block to dissipate heat from the internal space of the secure processing block. The radiator (100) comprises heat dissipation fins (1). Each heat dissipation fin (1) comprises a heat dissipation fin body (11) and a blocking structure (12) connected to the heat dissipation fin body (11) and used for blocking external detection of the secure processing block. The technical effects of good ventilation, good system heat dissipation and low noise can be achieved.

Description

Radiator, safety processing module and projector

【Technical Field】

The invention relates to the technical field of projectors, in particular to a radiator, a safety processing module and a projector.

【Background technique】

The important part of the projector is the security processing module (Secure Processing Block in English, SPB for short). The security processing module has a physical protection boundary, which can prevent access and detection of its internal circuits, thereby providing physical protection for internal security entities.

In order to dissipate heat from the internal components of the security processing module, a heat sink is usually installed in its internal space. In order to meet the purpose of anti-access detection of the security processing module, the housing of the security processing module of some projectors, which is arranged on the periphery of the radiator, is arranged in a labyrinth structure. The labyrinth structure can block the line of sight, and the observer cannot see the internal components of the projector without the help of special tools. However, in this solution, the housing structure design is more complicated, and the volume is large, and the system air duct resistance is relatively large. In order to meet the heat dissipation requirements, a larger and thicker fan has to be selected, which further leads to the overall size of the projector. Increase, and at the same time bring greater noise.

Therefore, it is necessary to provide a new radiator, safety processing module and projector to solve the above technical problems.

[Summary of the invention]

The purpose of the present invention is to overcome the above technical problems and provide a radiator, a safety processing module and a projector with good ventilation, good system heat dissipation performance and low noise.

In order to achieve the above object, the present invention provides a heat sink, which is used for a safety processing module and is arranged in the internal space of the safety processing module to dissipate heat from the internal space of the safety processing module. It includes heat dissipation fins, and the heat dissipation fins include a heat dissipation fin body and a blocking structure connected with the heat dissipation fin body and used to block external detection of the safety processing module.

More preferably, the blocking structure is a slope with a preset width and a preset inclination angle; the size of the inclination angle is negatively related to the width of the blocking structure and the width of the heat dissipation fins.

More preferably, the heat dissipation fin includes one or more blocking structures.

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

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

More preferably, the blocking structure is arranged at the middle position of the heat dissipation fin.

More preferably, the blocking structure is a curved surface.

More preferably, the heat dissipation fins include a plurality of heat dissipation fins, and the plurality of heat dissipation fins are arranged parallel to each other, and a heat dissipation air duct is provided between two adjacent heat dissipation fins.

The present invention also provides a safety processing module. The safety processing module further includes the radiator, a housing, and a vent through the radiator, the vent communicates with the radiator, and the vent includes one or Multiple.

The present invention also provides a projector, which includes the security processing module.

Compared with the prior art, the heat sink, the safety processing module and the projector of the present invention are provided with a blocking structure for blocking the external detection of the safety processing module through the heat dissipation fins. The blocking structure and the heat dissipation fins of the heat dissipation fins The body is connected. This structure does not require the housing of the safety processing module to be arranged in a labyrinth structure, and the resistance of the system air duct is small, so that the projector has a good ventilation condition, a good system heat dissipation performance and low noise. More preferably, the blocking structure is arranged as an inclined surface or a curved surface. This structure can ensure that the internal boards, wires, etc. of the projector are invisible, and that the observer cannot extend simple tools from the outside, that is, cannot obtain the information inside the projector, that is, the structure meets the requirements of anti-tampering.

【Explanation of the drawings】

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings, among which:

FIG. 1 is a schematic diagram of the three-dimensional structure of the security processing module of the present invention;

Figure 2 is an exploded view of the three-dimensional structure of the security processing module of the present invention

Figure 3 is a schematic diagram of the three-dimensional structure of the radiator of the present invention;

4 is a schematic view of the three-dimensional structure of the radiator of the present invention from another angle;

5 is an exploded view of the three-dimensional structure of the radiator of the present invention;

6 is a schematic diagram of the first structure of the heat dissipation fins of the heat sink of the present invention;

FIG. 7 is a schematic diagram of the second structure of the heat dissipation fins of the heat sink of the present invention;

FIG. 8 is a schematic diagram of a third structure of the heat dissipation fin of the radiator of the present invention;

9 is a schematic diagram of the fourth structure of the heat dissipation fins of the radiator of the present invention;

Figure 10 is a top view of the heat dissipation fins of the radiator of the present invention;

Fig. 11 is a cross-sectional view taken along the line A-A in Fig. 11.

【Detailed ways】

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Please refer to FIGS. 1-11 at the same time. The present invention provides a heat sink 100 and a safety processing module 200. The heat sink 100 is used for a safety processing module and is disposed in the 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 internal space formed by the outer casing 2 and the heat sink 100 is arranged in the internal space of the safety processing module. Specifically, the safety processing module 200 includes the radiator 100 and a housing 2, and the housing 2 is provided with a vent 20. The vent 20 communicates with the radiator 100 to ensure that the air passage of the radiator 100 is unblocked. The vent 20 includes one or more. The vent hole 20 is used to connect the radiator 100 with the outside air, and this structure facilitates the radiator 100 to directly transfer heat to the outside. In terms of shape, various shapes are also possible, and the ventilation hole 20 is any one of a circular shape, a hexagonal shape, and a rhombus shape. Of course, multiple combinations of shapes are also possible.

The heat sink 100 includes a heat-conducting element 3 and a heat-dissipating fin 1. The heat-conducting element 3 includes a heat-conducting element body 31 and a plurality of heat-conducting strips 32 extending from the heat-conducting element body 31 and spaced apart from each other. The heat-conducting element body 31 is used to absorb the heat generated by the heat source. The heat-conducting strip 32 is used to transfer the heat absorbed by the heat-conducting element body 31 to the heat dissipation fin 1. The structure of the plurality of thermal conductive strips 32 makes the heat transfer more efficient.

The heat dissipation fin 1 is connected to the heat conducting member 3. The heat dissipation fin 1 transfers the heat transferred by the heat conducting member 3 to the outside.

In this embodiment, the heat dissipation fin 1 includes a plurality of fins. In one embodiment, the plurality of heat dissipation fins 1 are arranged in parallel to each other. Two adjacent heat dissipation fins 1 form a heat dissipation air duct 10 at intervals. The heat dissipation air duct 10 transfers the heat transferred by the heat conducting 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 an embodiment, the blocking structure is integrally provided with the heat dissipation fin body.

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

The heat dissipation fin 1 includes one or more blocking structures 12. The blocking structure 12 is used to block external detection of the security processing module and can ensure that the heat dissipation air duct of the heat dissipation fin is unblocked. In order to better describe the principle of the blocking structure blocking external detection, define the end of the heat dissipation fin 1 close to the housing of the safety processing module as the first surface F1; define the heat dissipation fin 1 to be far away from the safety processing module One end of the housing of the module is the second face F2. Since the heat dissipation fins 1 are multiple, there are multiple heat dissipation fins 1 close to the end of the housing of the security processing module to jointly form the first surface F1, and multiple heat dissipation fins 1 are far away from all the heat dissipation fins. One end of the housing of the security processing module jointly forms the second surface F2.

In this embodiment, the blocking structure 12 is an inclined surface with a predetermined width and a predetermined inclination angle. Of course, it is not limited to this, and other structures that block external detection of the security processing module are also possible. For example, the blocking structure 12 may also be a curved surface. The structure of the blocking structure 12 can ensure that the internal boards, wires, etc. of the security processing module are invisible, and that the observer cannot reach into a simple tool from the outside to detect the information inside the security processing module, that is to say The structure meets the anti-tampering regulations and can meet the heat dissipation requirements of the internal components of the security processing module.

Please refer to FIG. 6, the blocking structure 12 is arranged at the middle position of the heat dissipation fin 1. Of course, it is not limited to this, and the blocking structure is provided at an end of the heat dissipation fin close to the housing of the safety processing module and/or an end of the heat dissipation fin far away from the housing of the safety processing module. In other words, the blocking structure 12 is disposed on the first surface F1 and/or the second surface F2.

Please refer to FIGS. 7-8 at the same time, the blocking structure 12 is disposed on the first surface F1 and the second surface F2. That is, the heat dissipation fin 1 includes one heat dissipation fin body 11 and two blocking structures 12. Wherein, the heat dissipation fin body 11 is located in the middle, and the two blocking structures 12 are arranged at both ends of the heat dissipation fin body 11. Specifically, please refer to FIG. 7, the two blocking structures 12 are arranged on opposite sides of the heat dissipation fin body 11.

Please refer to FIG. 9, the blocking structure 12 is disposed on the first surface F1 or the second surface F2. That is, the heat dissipation fin 1 includes a heat dissipation fin body 11 and a blocking structure 12.

The structure of the heat dissipation fins 1 described above makes the heat sink 100 more effective in blocking the line of sight of the observer. The embodiments in Figure 6-9 can be combined arbitrarily.

The inclination angle between the inclined surface and the heat dissipation fin body 11 is one or more of an acute angle, an obtuse angle, and a right angle. Wherein, the size of the inclination angle is negatively related to the width of the blocking structure 12 and the width of the heat dissipation fin 1.

Please refer to FIG. 10, in this embodiment, the structure of the heat dissipation fin 1 is composed of two parts connected to each other. The first part is specifically composed of one heat dissipation fin body 11 and one blocking structure 12. The second part is specifically composed of one heat dissipation fin body 11 and two blocking structures 12. The distance from the second surface F2 to the first surface F1 of the heat dissipation fin 1 defining the first part is defined as the first fin width W1. The distance from the second surface F2 to the first surface F1 of the heat dissipation fin 1 defining the second part is defined as a second fin width W2. The barrier structure 12 includes two barrier structures, and the width of the barrier structure 12 close to the first surface F1 is defined as the first barrier structure width W3. The width of the barrier structure 12 close to the second surface F2 is defined as the second barrier structure width W4.

Please refer to FIG. 11, the inclination angle between the blocking structure 12 of the first part and the heat dissipation fin body 11 is defined as a first bending angle a. The inclination angle between the blocking structure 12 and the heat dissipation fin body 11 that defines the other side of the second part is a second bending angle β. The first fin width W1 has a negative correlation with the first bending angle a. The negative correlation is embodied in that if the width W1 of the first fin is larger, the first bending angle a can be smaller, which can satisfy a good ventilation effect while ensuring that the observer's line of sight can be blocked. Similarly, the second bending angle β has a negative correlation with the second fin width W2. The larger the value of the first fin width W1 or the second fin width W2 is, but this will cause the projector to become larger, which is not conducive to miniaturization. In the actual design, it is necessary to balance the two factors of ventilation effect and volume. That is, to weigh the first fin width W1 and the first bending angle a, it is also necessary to weigh the second fin width W2 and the second bending angle β.

For the blocking structure 12, the width W3 of the first blocking structure is negatively related to the first bending angle a. The negative correlation is embodied in that if the width W3 of the first blocking structure is larger, the first bending angle a can be smaller, which can satisfy a good ventilation effect while ensuring that the observer's line of sight can be blocked. Similarly, the second bending angle β is negatively related to the width W4 of the second blocking structure. Wherein, because the second fin width W2 is smaller than the first fin width W1, and the space inside is used to place the internal components of the projector, the second bending angle β is larger than the first bending angle. Fold angle a. That is to say, the angle of the inclination angle of the width W4 of the second blocking structure is relatively large, and this arrangement is beneficial for the heat dissipation fins 221 to effectively block the line of sight of the observer.

After weighing and optimizing, in one embodiment, the first fin width W1 is 98 cm, and the first bending angle a is 165°. The width W2 of the second fin is 30 cm, and the second bending angle β is 172°. The setting of the above design data enables the heat sink 100 to effectively block the line of sight of the observer. This structure meets the requirements for tamper resistance.

The present invention also provides a projector 300 (not shown), and the projector 300 includes the security processing module 200.

The above are only the embodiments of the present invention. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present invention, but these all belong to the present invention. The scope of protection.

Claims

A radiator, the radiator is used for a safety processing module and is arranged in the internal space of the safety processing module, the safety processing module has a vent, the radiator connects the safety processing module through the vent The internal heat is conducted to the outside, characterized in that the heat sink includes heat dissipation fins, the heat dissipation fins include a heat dissipation fin body, a blocking structure connected to the heat dissipation fin body, and the blocking structure shields the The vent is used to block the outside from detecting the internal space of the safety processing module.
The heat sink according to claim 1, wherein the blocking structure is an inclined surface having a predetermined width and a predetermined inclination angle; the size of the inclination angle is related to the width of the blocking structure and the heat dissipation fins The width is negatively correlated.
The heat sink according to claim 2, wherein the heat dissipation fin comprises one or more blocking structures.
The heat sink according to claim 3, wherein the inclination angle between the inclined surface and the heat dissipation fin body is one or more of acute angle, obtuse angle, and right angle.
The heat sink according to any one of claims 1 to 4, wherein the blocking structure is provided at one end of the heat dissipation fin close to the housing of the safety processing module and/or the heat dissipation fin is far away At one end of the housing of the security processing module.
The heat sink according to any one of claims 1 to 4, wherein the blocking structure is arranged at a middle position of the heat dissipation fin.
The heat sink according to claim 1, wherein the blocking structure is a curved surface.
The heat sink according to claim 1, wherein the heat dissipation fins comprise a plurality of heat dissipation fins, and the plurality of heat dissipation fins are arranged parallel to each other, and a heat dissipation wind is provided between two adjacent heat dissipation fins. Tao.
A safety processing module, characterized in that the safety processing module comprises the radiator according to any one of claims 1-8, and the safety processing module further comprises a housing and a vent passing through it, The vent is in communication with the radiator, and the vent includes one or more.
A projector, wherein the projector includes the security processing module according to claim 9.