CPU efficient radiator for coal mining equipment

Abstract

The invention discloses a CPU efficient radiator for coal mining equipment, which relates to the technical field of computer hardware and comprises a processor and a mainboard for exporting signals of the processor. In conclusion, a built-in radiator of the processor is canceled, and heat is conducted out in a multi-stage manner by adopting a contact manner between the shell and the processor through the heat dissipation contactor, so that the heat conduction performance of the processor can be relatively gentle to present a linear state change; compared with the mode of directly canceling a processor radiator to connect the shell, the multi-stage heat exporting mode has a better effect, the heat conduction mechanism is additionally arranged at the bottom of the shell, and the heat exporting effect of the heat conduction mechanism is improved on the basis of multi-stage heat conduction; when a heat radiator is used for conducting out heat of a processor, the heat needs to be continuously conducted to a shell through the heat radiator, however, the heat conducting-out efficiency is relatively gentle, and the cooling effect can not be rapidly achieved through multi-stage conducting-out.

Description

Technical Field

[0001] The invention relates to the technical field of computer hardware, and in particular to a CPU high-efficiency radiator for coal mining equipment. Background Art

[0002] At present, with the continuous improvement and development of the intelligent level of coal mining in my country, the intelligent level of underground coal mining equipment in coal mines is getting higher and higher. Special embedded single-chip microcomputers, control core computers and other equipment are widely used in coal mining sites, and a large number of CPU chips are widely used. The CPU is the core component of intelligent equipment, and its high-speed operation will generate a lot of heat, so its heat dissipation problem is a key link in fully exerting the hardware functions.

[0003] Due to the restrictions of underground conditions in coal mines, the protection level of electrical equipment is required to reach at least IP67. This means that electrical components must be sealed inside the equipment casing with no gas exchange with the outside world, and cannot be cooled by ordinary air. At present, the CPU of such equipment in coal mines relies on the internal installation of cooling fans to perform air cooling in the limited space inside the casing. The shape of the radiator determines that it cannot directly contact the casing for heat conduction, so generally only internal air cooling can be used. However, in the process of using internal air to dissipate heat, since air is a poor conductor of heat, and the internal space is limited, the heat generated by the CPU cannot be effectively transferred to the outside through the air, which makes the heat dissipation effect of the radiator poor, resulting in the phenomenon of cold outside and hot inside, affecting the CPU working efficiency and even unable to work for a long time. Summary of the invention

[0004] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. The embodiment of the present invention provides a CPU high-efficiency heat sink for coal mining equipment to solve the technical problem that the existing CPU heat sink is limited by its shape and cannot achieve high-efficiency heat dissipation for a long time.

[0005] The embodiment of the present invention adopts the following technical solution: a high-efficiency CPU radiator for coal mining equipment, including a processor and a motherboard for exporting signals from the processor, and also including a shell for protecting the processor and the motherboard, and mounting studs are provided between the shell and the motherboard for connecting them.

[0006] Furthermore, contact surfaces are provided at corresponding positions of the processor and the shell, a heat dissipation contactor is provided between the processor and the contact surface, thermal conductive silicone grease is provided between the heat dissipation contactor and the contact surface, and thermal conductive silicone grease is provided between the heat dissipation contactor and the processor.

[0007] Furthermore, the heat dissipation contactor is provided with a plurality of staggered distributed porous structures, and the heat dissipation contactor is small at the top and large at the bottom.

[0008] Furthermore, a plurality of heat dissipation grooves are provided in the contact surface.

[0009] Furthermore, a heat-conducting mechanism is provided on the shell, and the heat-conducting mechanism includes heat-conducting fins. The heat-conducting fins are interconnected to form an S-shaped channel, and the heat-conducting fins are hollow. A connecting channel is provided between each adjacent heat-conducting fin. An insulation layer, a heat-conducting pipe and a heat sink are provided from top to bottom in the heat-conducting fins.

[0010] Furthermore, the heat conducting fins and the connecting channels are centrally symmetrically arranged, and the connecting channels are inclinedly arranged.

[0011] Furthermore, the heat insulation layer is arranged above the connecting channel, and the heat sink is arranged below the connecting channel.

[0012] Furthermore, the thickness of the heat conducting fins gradually increases from both sides of the center.

[0013] Compared with the prior art, the beneficial effects of the present invention are: First, the processor's built-in heat sink is removed, and a large, efficient heat dissipation contactor made of high thermal conductivity metal is set between the processor and the shell (and the large heat dissipation contactor is convenient for contact with the processor). Since the air in the shell cannot circulate, the temperature cannot be taken away by gas circulation. At this time, the heat transfer characteristics of the metal can be used to conduct the heat of the processor in a contact manner; secondly, the heat dissipation contactor adopts a staggered arrangement structure of several through holes. This structure not only makes the heat sink have good thermal conductivity, but also can conduct heat to the surrounding space through the staggered through holes, play a role in heat conduction and heat storage, and is used as a primary heat sink to play a role in thermal stability; Secondly, custom mounting studs are used to make the processor, heat sink, and housing fit tightly together, and thermal conductive silicone grease is used to fill in between to ensure a complete fit; A number of heat dissipation grooves are arranged on the corresponding surface of the shell in contact with the heat dissipation contactor, which plays the role of the shell heat sink and is used as a secondary heat sink. At the same time, by using an additional layer of heat dissipation contactor, not only the processor can be connected to the shell, but also a transition is played to continuously diffuse the heat outward. The present invention adopts a two-stage heat conduction structure in combination with the special scene of coal mine use, and a continuous heat conduction gradient is formed between the two stages, so that the heat conduction process is smooth, continuous and stable. In summary, by eliminating the processor's built-in radiator and conducting heat extraction in multiple stages by contacting the shell and the processor through a heat dissipation contactor, the thermal conductivity can be relatively smoothly changed to present a linear state. The multi-stage heat extraction method of the present invention is better than directly eliminating the processor radiator to connect the shell. First, the processor is small in size and the shell is relatively thin, which makes it difficult to directly attach the processor surface to the shell. Secondly, according to the thermal conductivity of the object, although the heat sink can increase the heat dissipation area, if it is too thin, its thermal resistance will increase, because the heat conduction path becomes shorter, resulting in an increase in blockages, heat accumulation (blocked together and cannot be discharged), which reduces the heat dissipation efficiency and makes it impossible to extract the heat well, which not only does not have the effect of heat dissipation, but also interferes with heat dissipation. Combined with the characteristics of coal mines (the gas flow speed is slow, and the heat cannot be taken away from the shell through the gas circulation), the outer wall of the shell is relatively low in temperature, while the temperature of the processor is high (that is, cold outside and hot inside, heat accumulates in the shell and cannot be dissipated). After running for a long time, the temperature of the processor will become higher and higher, causing the processor to freeze. Secondly, by additionally setting a heat conduction mechanism at the bottom of the shell, the heat extraction effect of this heat conduction mechanism is improved based on multi-stage heat conduction. When using the radiator to extract heat from the processor, the heat needs to be continuously extracted to the shell through the radiator, but its heat extraction efficiency is relatively slow. When the processor runs at high speed, the multi-stage extraction may not be able to quickly achieve the cooling effect. For this reason, an additional heat conduction mechanism is set between the shell and the heat dissipation contactor to improve the heat transfer effect. When in use, this heat conduction mechanism uses the principle of temperature difference change of heat to generate pressure difference, so that the heat conduction mechanism at the heat conduction The hot air in the mechanism will circulate to places with lower temperatures (due to the large pressure difference of hot air, it will circulate upward, and the cold air after circulation will be continuously replenished, and then heated again. The heated hot air will squeeze the air above, causing the air above to circulate continuously), and then a layer-by-layer decreasing method is adopted to make the air in the heat conduction mechanism have a temperature difference, so that the heated air can circulate along the set channel, thereby accelerating the discharge of heat from near the processor, improving the heat dissipation effect of the radiator, and the thermal conductive fins of this heat conduction mechanism are hollow serpentine distribution, first of all, it is convenient for gas circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the first structural form of the housing of the present invention; Figure 2 This is a schematic diagram of the second structural form inside the shell of the present invention; Figure 3 This is a bottom view of the second structural form of the present invention; Figure 4 This is a schematic structural diagram of the heat conducting fin of the present invention from a first viewing angle; Figure 5 This is a schematic structural diagram of the heat conducting fin of the present invention from a second viewing angle; Figure 6 It is a schematic structural diagram of the heat conducting fin of the present invention from a third viewing angle; Figure 7 This is a schematic structural diagram of the heat conducting fin of the present invention from a fourth viewing angle; Figure 8 It is a schematic diagram of the heat pipe position distribution structure of the present invention.

[0016] Reference numerals: 1. Shell; 2. Mounting studs; 3. Contact surface; 31. Thermal fins; 32. Connecting channel; 33. Thermal insulation layer; 34. Thermal pipe; 35. Heat sink; 4. Heat dissipation contactor; 5. Thermal grease; 6. Processor; 7. Motherboard. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0019] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] An embodiment of the present invention provides a high-efficiency CPU heat sink for coal mining equipment, including a processor 6 and a motherboard 7 for exporting signals from the processor 6, and also includes a shell 1 for protecting the processor 6 and the motherboard 7, and mounting studs 2 for connecting the shell 1 and the motherboard 7 are provided between them.

[0023] Embodiment 1, below combines Figure 1 As shown: Specifically, a contact surface 3 is provided at corresponding positions of the processor 6 and the shell 1, a heat dissipation contactor 4 is provided between the processor 6 and the contact surface 3, a thermal conductive silicone grease 5 is provided between the heat dissipation contactor 4 and the contact surface 3, and a thermal conductive silicone grease 5 is provided between the heat dissipation contactor 4 and the processor 6.

[0024] During operation, when the processor 6 generates heat, due to the contact between the heat dissipation contactor 4 and the processor 6, the temperature of the processor 6 will be transferred to the heat dissipation contactor 4. At the same time, due to the contact between the heat dissipation contactor 4 and the contact surface 3, the heat in the heat dissipation contactor 4 will be gradually transferred to the contact surface 3 through the heat dissipation contactor 4. At this time, the heat dissipation contactor 4 plays a transitional role, so that the heat can be discharged in an orderly manner, avoiding direct contact between the heat and the shell 1. The shell 1 cannot discharge the heat at one time, resulting in an increase in blockages and the phenomenon that the heat cannot be dissipated. At the same time, the shell 1 and the heat dissipation contactor 4 are used to achieve the effect of secondary heat conduction.

[0025] Specifically, the heat dissipation contactor 4 is provided with a plurality of staggered porous structures, and the heat dissipation contactor 4 is small at the top and large at the bottom.

[0026] When working, the radiator has good thermal conductivity and can also conduct heat to the surrounding space through the staggered through holes, playing a role of heat conduction and heat storage. It is used as a primary radiator to play a role of thermal stability. At the same time, the heat dissipation contactor 4 is small at the top and large at the bottom, which makes the heat transfer transition smoother and enables the heat dissipation contactor 4 to play a bridging role (the top of the heat dissipation contactor 4 contacts the processor 6, and the bottom of the heat dissipation contactor 4 contacts the contact surface 3, and the heat can be conducted out through the heat dissipation contactor 4). In the process of heat transfer, the heat changes into a linear state, such as the temperature of the processor 6 is 90°C - the temperature of the heat dissipation contactor 4 is 65°C - the temperature of the shell 1 is 40°C. In this way, when the processor 6 is dissipating heat, the temperature transferred to the shell 1 at this time is the temperature after decreasing, so that the temperature received on the shell 1 can be gradually discharged, and the temperature transfer curve is smoother, which is convenient for the gradual extraction of heat. In addition, due to the existence of the temperature difference, the effect of heat transfer can be achieved.

[0027] Specifically, a plurality of heat dissipation grooves are provided in the contact surface 3 .

[0028] During operation, the surface area of ​​the contact surface 3 can be increased by providing a plurality of heat dissipation fine grooves, thereby enlarging the surface area of ​​the contact surface 3.

[0029] Embodiment 2, below combines Figures 2 to 8 As shown: Specifically, the shell 1 is provided with a heat-conducting mechanism, which includes heat-conducting fins 31. The heat-conducting fins 31 are interconnected to form an S-shaped channel, and the heat-conducting fins 31 are hollow. A connecting channel 32 is provided between each adjacent heat-conducting fin 31. The heat-conducting fins 31 are provided with a heat insulation layer 33, a heat-conducting pipe 34 and a heat sink 35 from top to bottom.

[0030] Specifically, the heat conducting fins 31 and the connecting channel 32 are centrally symmetrically arranged, and the connecting channel 32 is inclined. At the same time, the connection of the heat dissipating fins is blocked by a sealing plate, so that the space in the shell 1 remains a closed space, ensuring that the equipment can be used underground.

[0031] When heat is being extracted, the hot air gradually flows downward to both sides, thus achieving a multi-level heat conduction effect. Specifically, the heat insulation layer 33 is disposed above the connecting channel 32 , and the heat sink 35 is disposed below the connecting channel 32 .

[0032] Specifically, the thickness of the heat conducting fins 31 gradually increases from the center to both sides, and different heat insulating materials are added according to the thickness.

[0033] During operation, when the thickness of the heat-conducting fins 31 increases, due to the increase in the amount of heat-insulating material, the closer the heat-conducting fins 31 are to the edge, the worse the heat transfer effect is, and the air pressure inside them is also smaller (during use, the closer to the edge, the better the air contact effect between them, so the temperature of the edge is lower, and relatively speaking, the temperature of the shell 1 near the edge is also lower, and the demand for heat dissipation effect is lower than that of the center point. At this time, what needs to be considered is to extract the heat at the center from the shell 1).

[0034] Working principle: During use, since the heat-conducting fins 31 are equipped with a heat-insulating layer 33 and a heat-conducting pipe 34, the heat-conducting fins 31 and the heat-conducting pipe 34 in the middle part are in contact with the processor 6. First, part of the heat is extracted through the heat-conducting fins 31 themselves. Secondly, in the process of extracting heat, the air in the heat-conducting fins 31 will be heated (there are two ways to transfer heat in the heat-conducting fins 31 here, one is through contact heat conduction, and the other is to heat the gas entering the heat-conducting fins 31 for heat transfer. Multiple heat conduction methods improve the heat dissipation effect), so that the cold air is converted into hot air. Due to the large pressure difference of the hot air, it will circulate upward, and the circulated cold air will be continuously replenished and then heated again. The heated hot air will squeeze the air above, so that the air above is continuously circulated. At this time, in the process of heat transfer air During the process, the thickness of both the heat sink 35 and the heat-conducting fin 31 will change as they get closer to the two sides, and the upper heat insulation layer 33 will gradually thicken. Therefore, the air heating effect in the heat-conducting fin 31 gradually worsens from the center to the two sides (it can be understood that the air temperature in the middle is high, and the temperature is lower as it gets closer to the two sides). The heat conducted out through the heat-conducting fin 31 will be directly taken away by the air after moving to the contact surface 3. The air entering the heat-conducting fin 31 has different temperatures at different locations of the heat-conducting fin 31, and gases with different temperatures will produce a pressure difference. Through the pressure difference, the gas with a high temperature will push the gas with a low temperature, so that the air in the displaced heat-conducting fin 31 can circulate along the heat-conducting fin 31 and the connecting channel 32 set in the heat-conducting fin 31. The circulation of gas can better drive the heat to be transferred, thereby enhancing the heat dissipation effect of the shell 1.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-efficiency CPU heat sink for coal mining equipment, comprising a processor (6) and a motherboard (7) for exporting signals from the processor (6), characterized in that; It also includes a housing (1) for protecting the processor (6) and the mainboard (7), and a mounting stud (2) for connecting the housing (1) and the mainboard (7) is provided between the housing (1) and the mainboard (7).

2. The CPU high-efficiency heat sink for coal mining equipment according to claim 1, characterized in that; Contact surfaces (3) are provided at corresponding positions of the processor (6) and the housing (1), a heat dissipation contactor (4) is provided between the processor (6) and the contact surface (3), thermal conductive silicone grease (5) is provided between the heat dissipation contactor (4) and the contact surface (3), and thermal conductive silicone grease (5) is provided between the heat dissipation contactor (4) and the processor (6).

3. The CPU high-efficiency heat sink for coal mining equipment according to claim 2, characterized in that; The heat dissipation contactor (4) is provided with a plurality of staggered distributed porous structures, and the heat dissipation contactor (4) is small at the top and large at the bottom.

4. The high-efficiency CPU heat sink for coal mining equipment according to claim 2, characterized in that; A plurality of heat dissipation grooves are provided in the contact surface (3).

5. The high-efficiency CPU heat sink for coal mining equipment according to claim 1, characterized in that; The shell (1) is provided with a heat conduction mechanism, the heat conduction mechanism comprising heat conduction fins (31), the heat conduction fins (31) are connected to each other to form an S-shaped channel, the heat conduction fins (31) are hollow, a connection channel (32) is provided between each adjacent heat conduction fin (31), and a heat insulation layer (33), a heat conduction pipe (34) and a heat sink (35) are provided in the heat conduction fins (31) from top to bottom.

6. The CPU high-efficiency heat sink for coal mining equipment according to claim 5, characterized in that; The heat conducting fins (31) and the connecting channel (32) are centrally symmetrically arranged, and the connecting channel (32) is inclined.

7. The high-efficiency CPU heat sink for coal mining equipment according to claim 5, characterized in that; The heat insulation layer (33) is arranged above the connecting channel (32), and the heat sink (35) is arranged below the connecting channel (32).

8. The CPU high-efficiency heat sink for coal mining equipment according to claim 5, characterized in that; The thickness of the heat conducting fins (31) gradually increases from the center to both sides.

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