External heat dissipation device for notebook computer

Abstract

The utility model discloses an external heat dissipation device for a notebook computer, which belongs to the technical field of portable computer heat dissipation equipment and comprises a bracket and a base which are hinged, the base is provided with a supporting rod and a fan, the supporting rod is used for supporting the bracket, and the base is of a rectangular frame structure. The base comprises a first connecting part, a second connecting part, a third connecting part and a fourth connecting part which are sequentially connected and enclosed, the second connecting part, the third connecting part and the fourth connecting part are provided with communicated sliding grooves, sliding blocks are connected into the sliding grooves in a sliding mode, and the bottom of the fan is rotationally connected with the sliding blocks. And the fan slides to adjust the position and orientation of the fan, so that rapid heat dissipation of the area between the bracket and the base is facilitated. The position and the orientation of the fan are adjusted so as to adjust the heat dissipation and air exhaust direction, and the LED lamp is suitable for different use environments.

Description

Technical Field

[0001] The utility model belongs to the technical field of portable computer cooling equipment, in particular to an external cooling device for a notebook computer. Background Art

[0002] In today's digital age, laptops are widely used due to their portability and powerful functions. Due to the size and structure of laptops, the heat dissipation effect is often poor, and they need to be used with a stand. Existing stands increase air circulation space by raising the laptop, and some stands are equipped with fans to increase air circulation. However, existing stands do not consider the directionality of heat dissipation and exhaust, and the notebook usage environment is often not fixed. When there is obstruction on one side or both adjacent sides around the stand, the heat dissipation effect is affected, affecting the user's experience. Based on this, we propose an external heat dissipation device for laptops. Utility Model Content

[0003] The utility model aims to provide an external heat dissipation device for a notebook computer, aiming to solve the problems existing in the prior art in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An external cooling device for a laptop computer includes a hinged bracket and a base, the base is provided with a support rod and a fan, the support rod is used to support the bracket, the base is a rectangular frame structure, the base includes a first connecting part, a second connecting part, a third connecting part and a fourth connecting part connected and enclosed in sequence, the second connecting part, the third connecting part and the fourth connecting part are provided with a connected slide groove, a slider is slidably connected in the slide groove, and the bottom of the fan is rotatably connected to the slider. The fan is slidable to adjust the position and direction of the fan, so as to facilitate rapid heat dissipation in the area between the bracket and the base.

[0006] Furthermore, an adapter is provided between the fan and the slider, the top of the adapter is hinged to the fan, the bottom of the adapter is rotatably connected to the slider, the second connecting part, the third connecting part and the fourth connecting part are provided with connected recessed parts, and the slide groove is arranged in the recessed part.

[0007] Furthermore, the second connecting part and the fourth connecting part are respectively provided with a receiving groove, one end of the support rod is hinged to the receiving groove, the support rod is hollow and has a threaded rod threadedly connected thereto, a hand-held part is provided at the end of the threaded rod, the hand-held part is rotatably connected to the second connecting piece, a first connecting piece is provided at the bottom of the bracket, and the second connecting piece is detachably connected to the first connecting piece.

[0008] Furthermore, the first connecting member includes a connecting seat arranged on the bottom surface of the bracket, and a plug-in block hinged to the connecting seat, and the second connecting member is provided with a plug-in slot, and the plug-in block is plug-fitted with the plug-in slot.

[0009] Furthermore, it also includes a temperature detection system, which includes a power management module, a temperature detection module and a main control system, the main control system is electrically connected to the temperature detection module and the fan respectively, the temperature detection module is used to detect the temperature in the area between the bracket and the base, the main control system is used to adjust the fan speed according to the detected temperature, and the power management module is used to supply power to the main control system, the temperature detection module and the fan.

[0010] Compared with the shortcomings and deficiencies of the prior art, the utility model has the following beneficial effects.

[0011] 1. The utility model provides an external cooling device for a laptop computer. A C-shaped slide groove is arranged on the base. The fan is rotatably connected to a slider in the slide groove. The sliding fan can adjust the position of the fan so that the fan faces the unblocked side, which is convenient for quickly discharging the hot air in the bracket and base area, is beneficial to improving the heat dissipation effect, and is suitable for different usage environments.

[0012] 2. The slide groove is arranged in the recessed part, and an adapter is arranged between the fan and the slider. The fan and the adapter are hinged, so that the fan can be stored horizontally when the heat dissipation device is folded, and the fan can be used vertically.

[0013] 3. The temperature detection module detects the temperature in the area between the bracket and the base in real time. The main control system adjusts the fan speed based on the temperature data, which not only ensures the heat dissipation effect but also reduces the noise, which is beneficial to improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the bracket in the utility model.

[0015] Figure 2 It is a structural schematic diagram of the base in the utility model.

[0016] Figure 3 It is a schematic diagram of the internal structure of the base when the heat dissipation device of the utility model is in a folded state.

[0017] Figure 4 It is a schematic diagram of the connection structure between the base and the bracket in the unfolded supporting state of the heat dissipation device of the utility model.

[0018] Figure 5 yes Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0019] Figure 6 It is a schematic diagram of the control relationship of the temperature detection system in the utility model.

[0020] Figure 7 It is a schematic diagram of the circuit principle in the utility model.

[0021] In the figure: 1. bracket; 2. base; 3. connecting rod; 4. block; 5. fan; 6. support rod; 7. accommodating groove; 8. recessed portion; 9. slide groove; 10. threaded rod; 11. first connecting portion; 12. second connecting portion; 13. third connecting portion; 14. fourth connecting portion; 15. slider; 16. adapter; 17. baffle; 18. first connecting portion; 19. second connecting portion; 20. plug-in slot; 21. hand-held portion; 22. connecting seat; 23. plug-in block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Reference Figure 1-Figure 7 , an external cooling device for a notebook computer, comprising a base 2 and a bracket 1 which are movably connected, the bracket 1 is used to support the notebook computer, and the base 2 provides support for the bracket 1.

[0024] The bracket 1 adopts a frame structure, and is provided with connecting rods 3 that are crisscrossed vertically and horizontally. A ventilation grid is formed between the connecting rods 3 to facilitate heat dissipation from the bottom of the laptop computer. The bracket 1 is provided with a stopper 4, and the stopper 4 is used to limit and support the laptop computer in a tilted state. In order to improve the heat dissipation effect, the bracket 1 is made of a metal material that is conducive to heat dissipation.

[0025] The base 2 adopts a hollow rectangular frame structure, and the base 2 has a first connecting part 11, a second connecting part 12, a third connecting part 13 and a fourth connecting part 14 that are connected and enclosed, wherein the first connecting part 11 is parallel to the third connecting part 13, and the second connecting part 12 is parallel to the fourth connecting part 14, the first connecting part 11 is rotatably connected to the bracket 1, and the second connecting part 12 and the fourth connecting part 14 are respectively provided with a support rod 6, and the support rod 6 is used to support the bracket 1 to an inclined state. Specifically, the second connecting part 12 is provided with a receiving groove 7 at one end close to the third connecting part 13, and the receiving groove 7 is used for the support rod 6 to be embedded for easy storage. The end of the support rod 6 close to the third connecting part 13 is hinged to the receiving groove 7, and a first connecting member 18 is provided at the bottom of the bracket 1. The first connecting member 18 is detachably connected to the support rod 6. The detachable connection method can select common connection methods such as bolt connection and clamping. The fourth connecting part 14 has the same structure as the second connecting part 12 and is not repeated here.

[0026] In one embodiment, the support rod 6 is a telescopic structure. Specifically, the support rod 6 is hollow and has a threaded rod 10 threadedly connected thereto. A hand-held portion 21 is provided at the end of the threaded rod 10. The hand-held portion 21 is rotatably connected to the second connecting member 19. The second connecting member 19 is detachably connected to the first connecting member 18. One connection method is that the first connecting member 18 includes a connecting seat 22 and a plug-in block 23. The connecting seat 22 is arranged on the bottom surface of the bracket 1. The plug-in block 23 is hinged to the connecting seat 22. A plug-in groove 20 is provided at the end of the second connecting member 19. The plug-in groove 20 is plugged into the plug-in block 23. After the first connecting member 18 is connected to the second connecting member 19, the support rod 6 supports the bracket 1 to tilt. The hand-held portion 21 is rotated to make the threaded rod 10 pass through the support rod 6 to adjust the angle between the bracket 1 and the base 2.

[0027] The base 2 is provided with a fan 5, and the fan 5 is used for rapid heat dissipation in the area between the bracket 1 and the base 2. Specifically, the second connecting portion 12, the third connecting portion 13 and the fourth connecting portion 14 of the base 2 are provided with a connected recessed portion 8, and the recessed portion 8 is provided with a connected C-shaped slide groove 9, and a slider 15 is slidably connected in the slide groove 9. An adapter 16 is provided between the bottom of the fan 5 and the slider 15, and the top of the adapter 16 is hinged to the fan 5, and the bottom of the adapter 16 is rotatably connected to the slider 15. When the heat dissipation device is not used, the fan 5 is moved to a horizontal state, that is, the fan 5 is parallel to the base 2, so that the bracket 1 and the base 2 are convenient to fold. When the heat dissipation device is used, the fan 5 is moved to a horizontal state, that is, the fan 5 is parallel to the base 2, so that the bracket 1 and the base 2 are convenient to fold. 5 to a vertical state, that is, the fan 5 is perpendicular to the base 2, and the fan 5 moves along the slide groove 9 through the slider 15. When the fan 5 is located in the slide groove 9 in the second connection part 12, most of the heat can be concentrated to the second connection part 12 side for discharge during the heat dissipation process. When the fan 5 is located in the slide groove 9 of the third connection part 13, most of the heat can be concentrated to the third connection part 13 side for discharge. When the fan 5 is located in the slide groove 9 of the fourth connection part 14, most of the heat can be concentrated to the fourth connection part 14 side for discharge. According to the heat dissipation in different directions, it can be applied to different use environments. When there is shielding around, the heat can be quickly dissipated along the unshielded side.

[0028] The adapter 16 is provided with a baffle 17 , and when the fan 5 rotates to a vertical state, the baffle 17 is used to limit the fan 5 .

[0029] In one embodiment, the external heat dissipation device also includes a temperature detection system, which includes a power management module, a main control system and a temperature detection module, wherein the power management module is used to supply power to the main control system, the temperature detection system and the fan 5. Specifically, the power management module uses an MP1584EN DC step-down module to connect two 3.7v lithium batteries in series to form a 7.4V power supply, which is stepped down to 5V to power the entire system, thereby ensuring sufficient power supply voltage and ensuring the stability and safety of system operation through the step-down circuit; the main control system uses the STC89C51 minimum system as the core controller, and the core controller mainly It includes a single-chip microcomputer STC89C52, a clock circuit composed of capacitors C1, C2 and a crystal oscillator X1, and a reset circuit composed of capacitors C3, resistors R1, R2 and buttons. The main control system is used to receive temperature data from the temperature detection module and analyze and process it through a built-in intelligent algorithm. According to the processing results, the main control system adjusts the speed of the fan 5 in real time to achieve precise control of the ambient temperature in the area between the bracket 1 and the base 2; the temperature detection module is composed of a DS18B20 temperature sensor, which collects the ambient temperature in the area between the bracket 1 and the base 2 on the lower side of the laptop in real time, and transmits the temperature data to the main control system. The DS18B20 sensor has good accuracy and stability, which helps to ensure the accuracy and reliability of temperature detection.

[0030] In one embodiment, the fan 5 selects a silent fan 5. Specifically, a 5V silent fan 5 is used as an actuator. The on and off of transistors Q1 and Q2 are controlled according to the control signal of the main control system, and the speed of the silent fan 5 is adjusted in real time. The silent fan 5 not only ensures the heat dissipation effect, but also reduces the noise level, thereby improving the user experience.

[0031] In one embodiment, the temperature detection system also includes a display module, which uses a two-in-one common anode digital tube to display temperature data. The digital tube displays the temperature signal collected in real time by the main control system, wherein the on-off control of the transistors Q3 and Q4 is controlled by the main control system, the resistor RP1 is the pull-up resistor of the P0 port of the microcontroller, and the resistor RN1 is the current limiting resistor of the digital tube.

[0032] When the external cooling device for a notebook computer is in a folded state, the fan 5 is horizontally located in the base 2 , the support rod 6 is embedded in the receiving groove 7 , and the bracket 1 covers the top surface of the base 2 .

[0033] When the external cooling device for a laptop computer is in an unfolded supporting state, the bracket 1 is moved to be tilted, the support rod 6 is moved, the first connecting member 18 is connected to the second connecting member 19, so that the support rod 6 supports the bracket 1, the hand-held portion 21 is rotated, the extension amount of the threaded rod 10 is adjusted, thereby adjusting the tilt angle of the bracket 1, and the fan 5 is rotated to a vertical state. According to the surrounding environment of the cooling device, the position of the fan 5 is adjusted so that the fan 5 faces the unblocked side. The temperature detection module detects the temperature in the area of ​​the bracket 1 and the base 2 in real time, and the main control system adjusts the rotation speed of the fan 5 through the detection data to ensure the cooling effect.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An external cooling device for a notebook computer, characterized in that: The invention comprises a hinged bracket (1) and a base (2), wherein the base (2) is provided with a support rod (6) and a fan (5), wherein the support rod (6) is used to support the bracket (1), and the base (2) is in a rectangular frame structure. The base (2) comprises a first connecting portion (11), a second connecting portion (12), a third connecting portion (13) and a fourth connecting portion (14) which are connected and enclosed in sequence, wherein the second connecting portion (12), the third connecting portion (13) and the fourth connecting portion (14) are provided with a connecting slide groove (9), wherein a sliding block (15) is slidably connected in the sliding groove (9), and the bottom of the fan (5) is rotatably connected to the sliding block (15).

2. The external cooling device for a notebook computer as claimed in claim 1, characterized in that: An adapter (16) is provided between the fan (5) and the slider (15); the top of the adapter (16) is hinged to the fan (5); the bottom of the adapter (16) is rotatably connected to the slider (15); the second connecting portion (12), the third connecting portion (13) and the fourth connecting portion (14) are provided with a communicating recessed portion (8); and the slide groove (9) is provided in the recessed portion (8).

3. The external cooling device for a notebook computer as claimed in claim 2, characterized in that: The second connecting portion (12) and the fourth connecting portion (14) are respectively provided with a receiving groove (7); one end of the support rod (6) is hinged to the receiving groove (7); the support rod (6) is hollow and is penetrated by a threaded rod (10) threadably connected thereto; a hand-held portion (21) is provided at the end of the threaded rod (10); the hand-held portion (21) is rotatably connected to the second connecting member (19); a first connecting member (18) is provided at the bottom of the bracket (1); and the second connecting member (19) is detachably connected to the first connecting member (18).

4. The external cooling device for a notebook computer as claimed in claim 3, characterized in that: The first connecting member (18) comprises a connecting seat (22) arranged on the bottom surface of the bracket (1), and a plug-in block (23) hingedly connected to the connecting seat (22); the second connecting member (19) is provided with a plug-in slot (20), and the plug-in block (23) is plugged into and matched with the plug-in slot (20).

5. The external cooling device for a notebook computer as claimed in claim 1, characterized in that: It also includes a temperature detection system, the temperature detection system includes a power management module, a temperature detection module and a main control system, the main control system is electrically connected to the temperature detection module and the fan (5) respectively, the temperature detection module is used to detect the temperature in the area between the bracket (1) and the base (2), the main control system is used to control the speed of the fan (5) according to the detected temperature, and the power management module is used to supply power to the main control system, the temperature detection module and the fan (5).

Images