A multifunctional replaceable heat dissipation device and a method of use

Abstract

The present application relates to the technical field of household appliances, and discloses a multifunctional replaceable heat dissipation device, which is a cylindrical detachable structure, characterized by comprising a fan assembly and a power supply body connected through a magnetic attraction body; the fan assembly comprises a hidden fan type machine head and a stepless speed regulation mechanism; the power supply body comprises a battery cover and a battery compartment; the hidden fan type machine head comprises a cylindrical shell, single-moving-leaf double-static-leaf type fan blades arranged in the inner cavity of the cylindrical shell and an ultravoltage carbon brush motor; an inclined trapezoidal structure air outlet is formed in the upper end of the cylindrical shell; the single-moving-leaf double-static-leaf type fan blades are arranged in a concentric shaft arrangement structure in the order of a first static leaf, a moving leaf and a second static leaf; and a use method thereof is also disclosed, which can achieve stronger heat dissipation effect, meet the requirements of one machine with multiple functions and long-time outdoor use, and is especially suitable for the case of strong heat dissipation for small opening inner space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a multifunctional replaceable heat dissipation device and a use method thereof. BACKGROUND

[0002] With the development of science and technology, small multifunctional portable life small appliances that can be used anytime and anywhere are more and more popular, especially handheld heat dissipation devices and handheld fans whose size is reduced to be held in hand.

[0003] At present, handheld fans can realize heat dissipation function and component replacement, but still have many defects. For example, the handheld fan usually adopts sunflower type fan head and T type structure. For the case of needing to dissipate heat to the inner space through a small opening, the overall structure is much larger than the opening, so the device cannot be inserted into the inner space to dissipate heat. Secondly, the fan face is relatively wide, and the air supply is not concentrated. For the case of needing to provide super strong heat dissipation air to the inner space, the heat dissipation efficiency is low and the heat dissipation effect is not good. Moreover, the fan face has a hollow structure, and the fan blades are visible. When the clothes have many fine line decorations, the fan blades are easily entangled through the hollow part of the fan face. The fan blade structure also has many problems, such as: imbalance of fan blades: if the fan blades are uneven or twisted, it will cause uncomfortable vibration of the fan, and affect the efficiency of the fan blades; improper design of fan blade shape: the shape of the fan blade has a great influence on the performance of the fan, such as air volume, noise and energy consumption; the shape of the fan blade is not conducive to air transmission, and cannot form sufficient air flow, so the fan speed and efficiency will be reduced; poor quality of fan blades: if the fan blades are made of poor quality materials, the fan blades may be easily damaged, thereby affecting the efficiency of the fan; in addition, if the weight of the fan blades is too heavy or too light, it will also affect the efficiency of the fan blades; in addition, most handheld fans with detachable function adopt threaded rotating body type or pressing needle type. For clothes that are not convenient to operate with hands, such as animal performance costumes, gloves are large and thick, and the hand movement is not sensitive after wearing, so it is very difficult to rotate and disassemble. The pressing needle type is often misoperated and disassembled due to hand holding and other conditions; and the handheld fan with detachable function has insufficient endurance. For long time outdoor activities, such as participating in role playing activities in the open air all day, the multifunctional device does not have sufficient power supply capacity, and cannot be used. SUMMARY

[0004] The present application aims to provide a multifunctional replaceable heat dissipation device and a use method thereof, which can achieve stronger heat dissipation effect, meet the demand of one machine with multiple functions and the multifunctional usability of the device in long time outdoor use, and is especially suitable for the case of needing to dissipate heat to the inner space of a small opening.

[0005] The basic scheme provided by the application is a multifunctional replaceable heat dissipation device, characterized by a cylindrical detachable structure, comprising a fan assembly and a power supply body connected by a magnetic body; the fan assembly comprises a hidden fan type head and a stepless speed regulation mechanism; the power supply body comprises a battery cover and a battery compartment; the hidden fan type head, the stepless speed regulation mechanism, the battery cover and the battery compartment are sequentially connected; the magnetic body is a de-energized electromagnet installed at the bottom end of the stepless speed regulation mechanism and a magnetic body installed at the upper end of the battery cover; the bottom end surface of the battery compartment is provided with a micro switch for controlling the magnetic body to realize the separation of the body; the hidden fan type head comprises a cylindrical shell, a single-moving-leaf double-static-leaf fan blade and a super-voltage carbon brush motor arranged in the inner cavity of the cylindrical shell; a slanting trapezoidal structure air outlet is formed in the upper end of the cylindrical shell; the single-moving-leaf double-static-leaf fan blade is arranged in a concentric shaft arrangement structure in the order of first static leaf, moving leaf and second static leaf.

[0006] The working principle and advantages of the application are that the quick assembly and quick disassembly function of the assembly body is realized by the magnetic body and the micro switch, and the disassembly and assembly are convenient; the assembly has replaceability and multifunctional all-in-one machine due to the detachable structure; a high-power super strong power supply device is configured to realize the usability of the multifunctional device during long time outdoor use; the overall cylindrical simple and small structure, the cylindrical air outlet and the structure of the hidden fan blade type fan assembly are very suitable for the case of strong heat dissipation of the inner space with small opening; the special shape of the air outlet and the fan blade, especially the single-moving-leaf double-static-leaf fan blade structure, helps to have forward concentration of wind direction, reduces turbulence and wind loss, realizes the large air volume and large wind force heat dissipation function of the heat dissipation device, and improves the heat dissipation efficiency and heat dissipation effect; the charging and discharging interface and circuit protocol setting improve the rated energy of the body.

[0007] Further, the first static leaf is fixedly connected to the inner side of the upper end of the cylindrical shell; the second static leaf is fixedly connected to the upper end of the super-voltage carbon brush motor; the moving leaf is connected to the rotating shaft of the super-voltage carbon brush motor; the blades of the moving leaf and the first static leaf are arc-shaped blades; the blades of the second static leaf are straight line type blades; the first static leaf has a structure of bullet head at the upper end and flat mouth at the lower end; the two ends of the moving leaf and the second static leaf are flat mouth structures.

[0008] The beneficial effects are that the concept of "torque converter" in the automobile automatic transmission is introduced, specifically the "guide wheel" principle in the "torque converter", which can reduce the impact of scattered liquid flow on the inner wall, so that the fan blade is designed in the arrangement form of static leaf, moving leaf and static leaf, and the fan structure is designed in three sections, which helps to greatly improve the air volume under the same power. At the same time, the structure design of the static leaf helps to have forward concentration of wind direction, reduces turbulence and wind loss, and plays a key role in increasing wind speed.

[0009] Further, the inner side of the arc blade arc part is a R23.2mm radius arc, with an arc length of 12.5mm; the outer side is a radius R25mm arc, with an arc length of 13.09mm.

[0010] Beneficial effect: The blades of traditional small fans usually adopt a shape similar to an airfoil, that is, the upper surface is relatively flat, and the lower surface is slightly convex. The inclination angle of the arc part designed in this scheme can affect the direction and speed of airflow. A higher inclination angle is beneficial to improve the wind pressure.

[0011] Further, the armature winding copper wire section of the super-voltage carbon brush motor is 0.7mm 2 .

[0012] Beneficial effect: Abandoning the flat small DC motor used in similar portable fans, the 370 carbon brush motor is improved, the armature winding copper wire section is moderately improved, the internal copper wire section is increased, the maximum voltage of the motor is increased, the internal air gap is reduced, the internal resistance is reduced, the efficiency and output power of the motor are improved, and the endurance is more durable. At the same time, its super-voltage operation capability, that is, it can still operate normally for a long time under the condition that the voltage exceeds the rated voltage, increases the fan power and safety performance.

[0013] Further, the stepless speed regulation mechanism includes a stepless speed regulation mechanism shell with a groove and a stepless speed regulation button installed in the groove, wherein the groove and the stepless speed regulation button are matched in size.

[0014] Beneficial effect: The stepless speed regulation button is arranged in the recess of the shell, which is good for the overall device structure integration, and the speed of the motor can be adjusted by rotating the knob, so that the size of the air volume can be controlled at will. Compared with the button, it is more suitable for use when wearing clothes that are not convenient to move the hands, and the speed adjustment is more convenient.

[0015] Further, the inner cavity of the battery compartment is provided with a lithium battery and a protection control board, a multi-protocol output circuit board; the bottom end of the battery compartment is provided with a main switch; the center of the bottom end surface of the battery compartment is provided with a digital voltmeter, and a first DC charging and discharging female connector, a multi-protocol Type-A output female connector and a micro switch are embedded around the digital voltmeter; the upper end surface of the battery cover is also provided with a second DC charging and discharging female connector; the main switch, the digital voltmeter, the first DC charging and discharging female connector, the multi-protocol Type-A output female connector, the micro switch and the second DC charging and discharging female connector are connected with the protection control board.

[0016] Beneficial effect: Through the structure of the motor power supply, the function of power bank can be realized, the charging protocol of the charging device can be automatically identified, multiple fast charging protocols are supported, the corresponding charging power is automatically output according to the identified protocol, and the conversion efficiency reaches 95%.

[0017] Further, the battery cover is cylindrical; the diameter of the battery cover is smaller than the diameter of the battery compartment.

[0018] Beneficial effect: when used with the assembly, the overall device structure has good integration effect and small size; when used alone as a separate component, the structure has good integrity.

[0019] Further, it further comprises a lighting assembly and a floating hair removal assembly that can replace the fan assembly; the bottom end of the lighting assembly and the floating hair removal assembly is provided with a cavity for the built-in battery cover, a DC male interface pressure plate for connecting the second DC charging and discharging female port, a DC male interface for connecting the power-off type electromagnet on the bottom end of the battery cover.

[0020] Beneficial effect: when used with the power supply body, the cavity makes the overall device structure have good integration effect and small size; through the addition of the interface and the electromagnet, the quick release function with the power supply body can be realized.

[0021] Further, the lighting assembly further comprises a lamp holder shell with an air guide opening on the outer wall of the bottom end, and a lamp holder, a lamp bead, a heat sink fin, and a heat dissipation fan arranged in the inner cavity of the lamp holder shell in sequence; the floating hair removal assembly further comprises a brush head and a vacuum suction device.

[0022] Beneficial effect: in addition to the function of fan heat dissipation, the device also meets the needs of emergency lighting and light supplementing when performing and shooting outdoors at night. Since it is used for a long time, heat sink fins and a heat dissipation fan are arranged inside to improve the service life of the lighting device. In addition, when wearing clothes with a lot of fiber hair, it is difficult to clean the floating hair on the inside clothes after taking off, so a floating hair removal device with a vacuum suction device is arranged to improve the efficiency and effect of floating hair removal.

[0023] A method for using a multifunctional replaceable heat dissipation device, characterized in that the multifunctional replaceable heat dissipation device is used, which comprises the following contents:

[0024] When the charging mode is selected, only the battery cover and the battery compartment part are used, the DC charging and discharging female port satisfies the charging and discharging function, and an external power supply is connected to charge the battery; an external device is connected to the multi-protocol Type-A output female port to charge the device; wherein the built-in protection control board protects the charging and discharging process;

[0025] When the blowing mode is selected, the power-off type electromagnet on the stepless speed regulation mechanism of the fan assembly is aligned with the magnet on the battery cover of the power supply body to quickly connect; the super-voltage carbon brush provides strong power, and the rotation stepless speed regulation knob is adjusted to adjust the wind speed; the air outlet is columnar and has a hidden fan blade structure, which is inserted into the internal space that needs to be cooled through a small opening.

[0026] When the lighting mode is selected, the micro switch at the bottom end of the battery compartment is pressed to make the electromagnetic iron lose power, and the magnetic attraction between the magnetic body disappears. The fan assembly or the floating hair removal assembly is separated from the power supply body, and the fan assembly or the floating hair removal assembly is replaced with the lighting assembly. The electromagnetic iron at the bottom end of the lighting assembly is aligned with the magnetic body on the battery cover of the power supply body, and the DC male interface and the DC charging and discharging female port are connected to realize electrical connection. The total switch at the bottom end of the battery compartment is turned on, and the lighting function is started. The cooling fan and the cooling fin simultaneously perform cooling. When not in use, the total switch at the bottom end of the battery compartment is turned off.

[0027] When the floating hair removal mode is selected, the micro switch at the bottom end of the battery compartment is pressed to make the electromagnetic iron lose power, and the magnetic attraction between the magnetic body disappears. The lighting assembly or the fan assembly is separated from the power supply body, and the lighting assembly or the fan assembly is replaced with the lighting assembly. The electromagnetic iron at the bottom end of the floating hair removal assembly is aligned with the magnetic body on the battery cover of the power supply body, and the DC male interface and the DC charging and discharging female port are connected to realize electrical connection. The total switch at the bottom end of the battery compartment is turned on, and the floating hair removal function is started. When not in use, the total switch at the bottom end of the battery compartment is turned off.

[0028] Beneficial effect: through the magnetic attraction design, the convenient quick disassembly is realized, one machine is used for multiple purposes, and through the super strong power supply body, the long time outdoor use is realized. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The structure diagram of the multifunctional replaceable heat dissipation device provided by the embodiment of the application.

[0030] Figure 2 The explosion diagram of the fan assembly of the multifunctional replaceable heat dissipation device provided by the embodiment of the application.

[0031] Figure 3 The explosion diagram of the power supply assembly of the multifunctional replaceable heat dissipation device provided by the embodiment of the application.

[0032] Figure 4 The structure diagram of the single-moving-leaf double-static-leaf fan blade of the multifunctional replaceable heat dissipation device provided by the embodiment of the application.

[0033] Figure 5 The structure diagram of the battery compartment of the multifunctional replaceable heat dissipation device provided by the embodiment of the application.

[0034] Figure 6 The explosion diagram of the lighting assembly of the multifunctional replaceable heat dissipation device provided by the embodiment of the application.

[0035] Figure 7The explosion view of the multifunctional replaceable heat dissipation device with floating hair removing assembly. DETAILED DESCRIPTION

[0036] The specific embodiments are further described in detail below:

[0037] The marks in the attached drawings of the specification include: fan assembly 1, power supply body 2, hidden fan head 3, stepless speed regulation mechanism 4, battery cover 5, battery compartment 6, power-off electromagnet 7, magnetic receiver 8, cylindrical shell 31, single-moving-leaf double-static-leaf fan blade 32, overvoltage carbon brush motor 33, fan seat 34, oblique trapezoidal structure air outlet 311, air guide hole 312, hanging ear 313, first static blade 321, moving blade 322, second static blade 323, stepless speed regulation mechanism shell 41, stepless speed regulation button 42, lithium battery 61, protection control board 62, multi-protocol output circuit board 63, master switch 64, digital display voltmeter 65, first DC charge-discharge female connector 66, multi-protocol Type-A output female connector 67, micro switch 68, second DC charge-discharge female connector 69, DC male connector pressure plate 70, DC male connector 71, lamp holder shell 9, lamp holder 91, lamp bead 92, heat dissipation fin 93, heat dissipation fan 94, brush head 101, dust cup 102, filter screen 103, shell 104, fan blade 105, motor 106, DC voltage reduction plate 107.

[0038] The embodiment is basically as shown in the attached drawings Figure 1 and Figure 2 , Figure 3As shown: a multifunctional replaceable heat dissipation device, cylindrical detachable structure, including fan assembly 1 and power supply body 2 connected by magnetic body; fan assembly includes hidden fan type head 3 and stepless speed regulation mechanism 4; power supply body includes battery cover 5 and battery compartment 6; hidden fan type head 3, stepless speed regulation mechanism 4, battery cover 5, battery compartment 6 are connected in turn, specifically, hidden fan type head 3 and stepless speed regulation mechanism 4 are fixedly connected by self-tapping screw, battery cover 5 and battery compartment 6 are connected by self-tapping screw; the magnetic body is a power-off type electromagnet 7 installed at the bottom end of the stepless speed regulation mechanism 4 and a magnetic body 8 installed at the upper end of the battery cover 5, in this embodiment, a circular suction disc type 12v power-off type DC electromagnet is used to connect the assembly and the power supply body. In this embodiment, two power-off type electromagnets with a suction strength of 1.0KG are selected by using the characteristics of the electromagnet energization and demagnetization; the bottom end surface of the battery compartment 6 is provided with a micro switch 68 for controlling the magnetic body to realize the separation of the body, the micro switch is an embedded type, and a micro switch mounting groove is formed in the bottom end surface; the hidden fan type head 3 includes a cylindrical shell 31, a single-acting leaf double-static leaf type fan blade 32 arranged in the inner cavity of the cylindrical shell, and a super voltage carbon brush motor 33; the upper end of the cylindrical shell is provided with a slanting trapezoidal structure air outlet 311, which can increase the concentration of wind force and more easily send air to the performance dress, such as from the performance dress mouth, collar and the like, which can play a good heat dissipation effect; the lower end outer wall of the cylindrical shell is uniformly distributed along the circumference and is provided with a wind guide hole 312, which improves the air inlet amount and cooperates with the fan blade structure to improve the air supply efficiency, increase the air supply speed and air supply amount; it also includes an ear 313 for facilitating the carrying of the rope; at the same time, since the cylindrical structure wraps the fan blade, a hidden fan type fan is formed, and the safety of blowing is greatly increased. In this embodiment, the diameter of the fan assembly is 49mm, the length is 170mm, the diameter of the power supply body is 49mm, and the length is 90mm.

[0039] As Figure 4 shown, the single-acting leaf double-static leaf type fan blade is arranged in the same center axis in the order of first static leaf 321, dynamic leaf 322 and second static leaf 323. The first static leaf 321 is fixedly connected to the inner side of the upper end of the cylindrical shell 31 and located at the air outlet; the second static leaf 323 is connected to the upper end of the fan seat 34 and located at the air inlet, and the fan seat 34 has a cavity for placing the super voltage carbon brush motor 33, and such design structure is compact; the dynamic leaf 322 is connected to the rotating shaft of the super voltage carbon brush motor 33; the blades of the dynamic leaf 322 and the first static leaf 323 are arc-shaped blades with opposite bending directions.

[0040] The second stationary blade 323 is a straight blade, the first stationary blade 321 is a structure with a bullet-shaped upper end and a flat lower end, and both ends of the moving blade 322 and the second stationary blade 323 are flat structures.

[0041] The fan blade is designed through repeated simulation and adjustment, and simulated and calculated in ANSYS software to determine the optimal thickness and size of the fan blade under certain boundary conditions. In the embodiment, the number of blades of the moving blade, the first stationary blade and the second stationary blade is 7, the material of the arc-shaped blade of the moving blade is resin, the inner side of the arc part is a circular arc with a radius of R23.2 mm, the arc length is 12.5 mm, the outer side is a circular arc with a radius of R25 mm, the arc length is 13.09 mm, the front and rear tip parts are arc conical structures with a straight line connecting the ends of the two arcs, the upper end length is 7.5 mm, and the lower end length is 4 mm. The first stationary blade and the second stationary blade are straight blades with the same length of 15 mm and the same thickness of 1.2 mm.

[0042] Under the same power, the results measured by the anemometer for the ordinary size electric fan and the fan of the present scheme are as follows:

[0043] Table 1: Test results of fan wind speed of different fan blades under the same power

[0044] Test power (w) Fan type Actual wind speed (m / s) 4.5 Innovative design (no vanes) 4.4 4.5 Innovative design (front and rear vanes) 9.2 4.5 Ordinary fan 1 3.0 4.5 Ordinary fan 2 2.0 4.5 Ordinary fan 3 3.1

[0045] As can be seen from the test results, under the same output power, the actual measured wind speed of the fan with the moving and stationary blade structure is about 3 times that of the ordinary fan, the stationary blade design plays a key role in increasing the wind speed, and can realize large wind output and good heat dissipation effect.

[0046] The present scheme discards the flat small DC motor used in similar portable fans, and moderately improves the armature winding copper wire cross-sectional area on the basis of the 370 carbon brush motor. In the embodiment, a larger cross-section copper wire (the copper wire cross-sectional area is increased from 0.4 to 0.7 mm2) is used to re-wind the coil to realize super-voltage and reduce the motor internal resistance in the way of reducing air gap, thereby enhancing the power of the temporal air space. The improved super-voltage carbon brush motor 33 can reach a speed of 9200 revolutions per minute under 9V voltage, and a speed of 12700 revolutions per minute under 12V voltage, and has super-voltage operation capability, i.e. can operate normally for a long time under the condition that the voltage is increased to 16V, thereby improving the motor power and enhancing the motor safety. In the embodiment, the endurance test is carried out under the operating conditions of 12V, 0.8A and a power of about 10W, and the endurance of the device of the present scheme can reach 5 hours, while the endurance of the 370 carbon brush motor without improvement reaches about 3 hours under the same efficiency.

[0047] Noise test, the same power, ordinary size of electric fan and the fan of the design use noise meter measured results as follows:

[0048] Table 2, the same power, different fan blade speed noise test results

[0049]

[0050]

[0051] From the test results, in the same output power, the fan noise test results of the innovative design in this paper is close to the best level in similar products.

[0052] The stepless speed regulation mechanism includes a stepless speed regulation mechanism shell 41 with a groove and a stepless speed regulation button 42 installed in the groove, wherein the groove and the stepless speed regulation button are matched in size, and the structure is convenient for speed regulation.

[0053] As shown in Figure 3 , the inner cavity of the battery compartment 6 is provided with a lithium battery 61, a protection control board 62, and a multi-protocol output circuit board 63; the bottom end of the battery compartment is installed with a master switch 64; as shown in Figure 5 , the center of the bottom end surface of the battery compartment is installed with a digital voltmeter 65, and the first DC charging and discharging female connector 66, the multi-protocol Type-A output female connector 67, and the micro switch 68 are embedded along the periphery of the digital voltmeter; the upper end surface of the battery cover is also installed with a second DC charging and discharging female connector 69; the master switch 64, the digital voltmeter 65, the first DC charging and discharging female connector 66, the multi-protocol Type-A output female connector 67, the micro switch 68, and the second DC charging and discharging female connector 69 are electrically connected. The second DC female connector 69 on the upper end surface of the battery cover 5 is electrically connected with the DC male connector pressure plate 70 and the DC male connector 71 at the bottom end of the fan assembly or other assemblies, and is also magnetically connected with the demagnetizing electromagnet 7 at the bottom end of the fan assembly or other assemblies through the magnet 6 on the upper end surface of the battery cover 5, realizing quick disassembly; the outer side of the battery compartment is provided with anti-slip protrusions on the surface.

[0054] In this embodiment, 5.5-2.1 DC charge and discharge female port 66 is used, which has charging and discharging functions, and when the battery compartment is used alone, it can support up to 2 12V DC electrical appliances for external power supply (total power does not exceed 60W); multi-protocol Type-A output female port 67 outputs 5V voltage by default, when used as a power bank, it can automatically identify the charging protocol of the charging device, support BC1.2, APPLE, QC2.0 / 3.0, MTK PE1.1 / PE2.0, AFC, SFCP fast charging protocol, according to the identified protocol, automatically output 5V 3.4A, 9V 2.5A, 12V 2A, maximum 24W charging power, conversion efficiency reaches 95% (conversion efficiency is provided by the producer, conversion efficiency = (output voltage * output current) / (input voltage * input current), in this embodiment, the output voltage is 9V, the current is 2.67A, the input voltage is 12V, and the current is 2.1A, and the conversion efficiency is calculated to be 95%).

[0055] In this embodiment, the power supply lithium battery 61 of the machine body is selected from high-density ternary steel shell cylinder 21700 lithium battery, three series, nominal voltage 11.1V, rated capacity 4.5AH, through calculation 11.1*4.5=49.95WH, the rated energy of the machine body is about 49.95WH, and the commonly used power bank is generally about 37WH. The continuous use endurance of the electric fan of the application is 4-10 hours, and the energy of the conventional sunflower head small fan is about 3.7 watt hours, and the continuous use endurance is only 0.5 hours.

[0056] The protection control board 62 uses two 4406AQX1115 chips and one FM3450C20521090 chip to realize protection control, and can support a maximum of 5A current output. The 4406AQX1115 chip controls the switching state of the MOS tube by detecting the charging voltage and discharging voltage of the lithium battery and the overcurrent condition, so as to control the charging and discharging state of the battery; when the battery voltage reaches the preset overcharge or under-voltage threshold value, the circuit will automatically cut off the charging or discharging of the battery, avoiding excessive charging and discharging of the battery, leading to rapid aging and safety hazards of the battery. The overcharge threshold value set in this embodiment is 12.6V, and the under-voltage threshold value is 8.7V.

[0057] The FM3450C20521090 chip can dynamically protect the battery by real-time monitoring of the voltage, current and temperature of the battery; when overcharging, overdischarging or high temperature occurs, the control chip automatically cuts off the battery circuit, thereby avoiding battery failure, explosion or fire, etc.

[0058] The battery cover 5 is cylindrical; the diameter of the battery cover is smaller than the diameter of the battery compartment, which is beneficial to disassembly, and the structure of the independent part is good in structural integration, and at the same time cooperates with the lower end cavity of the assembly to form a whole structure with good structural integration.

[0059] As Figure 6 and Figure 7 shown, also includes lighting assembly and floating hair removal assembly can replace the fan assembly; the bottom end of the lighting assembly and the floating hair removal assembly are provided with a cavity with a built-in battery cover, a DC male interface plate 70 and a DC male interface 71 for connecting the DC female interface on the upper end surface of the battery cover, and a de-energized electromagnet 7 for connecting the magnet-receiving upper end surface of the battery cover. When used with the power supply body, the cavity is arranged to have good integrated structure and small size; through the addition of the interface and the electromagnet, the quick release function with the power supply body can be realized.

[0060] As Figure 6 shown, the lighting assembly further comprises a lamp holder shell 9 with an air guide opening on the outer wall of the bottom end, and a lamp holder 91, a lamp bead 92, a heat sink fin 93, and a heat sink fan 94 arranged in the inner cavity of the lamp holder shell in sequence; due to long-term use, the heat sink fin and the heat sink fan are arranged inside to improve the service life of the lighting device. In this embodiment, the diameter of the lighting assembly is 49mm and the length is 162mm.

[0061] As Figure 7 shown, the floating hair removal assembly further comprises a brush head 101 and a vacuum suction device, the vacuum suction device comprising a dust cup 102, a filter screen 103, a shell 104, a fan blade 105, a motor 106, and a DC voltage reduction plate 107, which improves the efficiency and effect of floating hair removal. In this embodiment, the diameter of the floating hair removal assembly is 49mm and the length is 343mm.

[0062] In this embodiment, the battery compartment part weighs about 0.3KG, the fan part weighs about 0.2KG, the lighting part weighs about 0.2KG, and the floating hair removal part weighs about 0.3KG, so the whole device is light and portable.

[0063] The multifunctional replaceable heat dissipation device is especially suitable for wearing animal costume clothing, and the performer's clothes are generally thick and heavy, with poor heat dissipation. Ordinary electric fans cannot blow air into the head cover or clothing, and almost have no heat dissipation effect. The performer is often troubled by stuffy and hot. The device assembly head of the device is inserted into the clothing inside from the small opening such as the clothing mouth and the collar, which can play a good heat dissipation effect. The specific use method is as follows:

[0064] When the charging mode is selected, only the battery cover and the battery compartment part are used, the DC charging and discharging female port satisfies the charging and discharging function, and the external power supply charges the battery; the multi-protocol Type-A output female port is connected to the equipment to charge the equipment; the built-in protection control board protects the charging and discharging process;

[0065] When the blowing mode is selected, the de-energized electromagnet on the stepless speed regulation mechanism of the fan assembly is aligned with the magnetic body on the battery cover of the power supply body to quickly connect; the overvoltage carbon brush provides strong power, and the stepless speed regulation knob is rotated to adjust the wind speed; the air outlet is columnar and has a hidden fan structure with fan blades, and is inserted into the inner space requiring heat dissipation through a small opening;

[0066] When the lighting mode is selected, the micro switch at the bottom end of the battery compartment is pressed to de-energize the de-energized electromagnet, and the magnetic attraction of the magnetic body disappears, so that the fan assembly or the floating hair removal assembly and the power supply body are separated and disassembled, and the fan assembly or the floating hair removal assembly is replaced with a lighting assembly; the de-energized electromagnet at the bottom end of the lighting assembly is aligned with the magnetic body on the battery cover of the power supply body, and the DC male interface and the DC charging and discharging female interface are connected to realize electrical connection, the total switch at the bottom end of the battery compartment is turned on, the lighting function is turned on, and the cooling fan and the cooling fins simultaneously perform heat dissipation; when not in use, the total switch at the bottom end of the battery compartment is turned off.

[0067] When the floating hair removal mode is selected, the micro switch at the bottom end of the battery compartment is pressed to de-energize the de-energized electromagnet, and the magnetic attraction of the magnetic body disappears, so that the lighting assembly or the fan assembly and the power supply body are separated and disassembled, and the lighting assembly or the fan assembly is replaced with a lighting assembly; the de-energized electromagnet at the bottom end of the floating hair removal assembly is aligned with the magnetic body on the battery cover of the power supply body, and the DC male interface and the DC charging and discharging female interface are connected to realize electrical connection, the total switch at the bottom end of the battery compartment is turned on, and the floating hair removal function is turned on; when not in use, the total switch at the bottom end of the battery compartment is turned off.

[0068] The scheme realizes the quick mounting function of the component body through the contact of the magnetic attraction body, and realizes the quick dismounting function of the component body through the micro switch control magnetic attraction body, which is convenient to dismount, especially suitable for wearing clothes when the hand movement is not convenient; The replaceable multi-functional all-in-one machine is realized by the detachable structure, which realizes the functions of ordinary power bank, fan, lighting and floating hair removal, and meets the needs of long time outdoor animal costume performance; The high-power super-long-lasting power supply device is configured, which is stronger than the ordinary fan in terms of endurance, and can realize the multi-function usability of the device in long time outdoor use; Through the simple and small structure of the whole cylindrical shape, the cylindrical air outlet and the structure of the hidden fan blade type fan assembly, it is very suitable for the case of strong heat dissipation for small opening inner space, such as wearing animal costume clothes and role playing; Through the special shape setting of the air outlet and the fan blade, especially the single moving blade and double static blade type fan blade structure, since the double static blades are added, and the moving blade is designed as an arc blade, and the static blade is designed as a straight blade, it is helpful to the wind direction with forward concentration, reduces the disturbance and wind loss, realizes the large air volume and large wind force heat dissipation function of the scheme heat dissipation device, improves the heat dissipation efficiency and heat dissipation effect; Through the charge and discharge interface and circuit protocol setting, the rated energy of the body is improved. The device can achieve stronger heat dissipation effect, can meet the needs of multi-function usability of the device in long time outdoor use, especially suitable for the case of strong heat dissipation for small opening inner space.

[0069] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme are not described in detail, and the ordinary technical personnel in the art knows all the ordinary technical knowledge in the art before the application date or the priority date, can know all the prior art in the field, and has the ability to apply the conventional experimental means before the date, the ordinary technical personnel in the art can improve and implement the scheme under the inspiration of the present application, some typical known structure or known method should not be an obstacle for the ordinary technical personnel in the art to implement the present application. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should be regarded as the protection scope of the present application, which will not affect the effect and practicality of the patent.

Claims

1. A multifunctional replaceable heat dissipation device, characterized in that, The device has a cylindrical, detachable structure, including a fan assembly and a power supply unit connected by a magnetic chuck. The fan assembly includes a concealed fan head and a continuously variable speed control mechanism. The power supply unit includes a battery cover and a battery compartment. The concealed fan head, continuously variable speed control mechanism, battery cover, and battery compartment are connected sequentially. The magnetic chuck consists of a de-energized electromagnet installed at the bottom of the continuously variable speed control mechanism and a magnetized object installed at the top of the battery cover. A microswitch is installed on the bottom surface of the battery compartment to control the magnetic chuck and separate the device from the power supply unit. The concealed fan head includes a cylindrical housing and a single-blade, double-blade fan and an overvoltage carbon brush motor disposed within the cavity of the cylindrical housing. The upper end of the cylindrical housing has a slanted trapezoidal air outlet. The single-blade, double-blade fan is arranged along the central axis in the order of first blade, moving blade, and second blade. The first stationary blade is fixedly connected to the inner side of the upper end of the columnar housing; the second stationary blade is fixedly connected to the upper end of the overvoltage carbon brush motor; the moving blade is connected to the rotating shaft of the overvoltage carbon brush motor; the blades of the moving blade and the first stationary blade are arc-shaped blades; the blades of the second stationary blade are straight blades; the first stationary blade has a bullet-shaped upper end and a flat lower end; both ends of the moving blade and the second stationary blade have flat ends. The lower outer wall of the cylindrical shell has air guide holes evenly distributed along the circumference.

2. The multifunctional replaceable heat dissipation device according to claim 1, characterized in that, The inner side of the arc-shaped blade is an arc with a radius of R23.2mm and an arc length of 12.5mm; the outer side is an arc with a radius of R25mm and an arc length of 13.09mm.

3. The multifunctional replaceable heat dissipation device according to claim 1, characterized in that, The armature winding copper wire cross-section of the overvoltage carbon brush motor is 0.7 mm². 2 .

4. The multifunctional replaceable heat dissipation device according to claim 1, characterized in that, The stepless speed regulation mechanism includes a stepless speed regulation mechanism housing with a groove on the upper outer wall and a stepless speed regulation button installed in the groove, wherein the groove is matched with the size of the stepless speed regulation button.

5. A multifunctional replaceable heat dissipation device according to claim 1, characterized in that, The battery compartment contains a lithium battery, a protection control board, and a multi-protocol output circuit board. A main switch is installed on the outer bottom of the battery compartment. A digital voltmeter is embedded in the center of the bottom surface of the battery compartment, and a first DC charging / discharging female port, a multi-protocol Type-A output female port, and a micro switch are embedded around the digital voltmeter. A second DC charging / discharging female port is also installed on the upper surface of the battery cover. The main switch, digital voltmeter, first DC charging / discharging female port, multi-protocol Type-A output female port, micro switch, and second DC charging / discharging female port are all connected to the protection control board.

6. A multifunctional replaceable heat dissipation device according to claim 1, characterized in that, The battery cover is cylindrical; the diameter of the battery cover is smaller than the diameter of the battery compartment.

7. A multifunctional replaceable heat dissipation device according to claim 6, characterized in that, It also includes a lighting assembly and a lint removal assembly with a replaceable fan assembly; the bottom of the lighting assembly and the lint removal assembly are reserved with a cavity for the built-in battery cover, a DC male interface pressure plate and a DC male interface for connecting the second DC charging and discharging female port, and a de-energized electromagnet for connecting the magnet on the upper surface of the battery cover.

8. A multifunctional replaceable heat dissipation device according to claim 7, characterized in that, The lighting assembly also includes a lamp head housing with an air vent on the bottom outer wall, and a lamp head, lamp beads, heat sink, and cooling fan arranged sequentially inside the lamp head housing; the lint removal assembly also includes a brush head and a vacuum adsorption device.

9. A method of using a multifunctional replaceable heat dissipation device, characterized in that, The multifunctional replaceable heat dissipation device according to any one of claims 1-8 includes the following: When the charging mode is selected, only the battery cover and battery compartment are needed. The DC charging and discharging female port meets the charging and discharging functions, allowing the battery to be charged by connecting an external power source. The multi-protocol Type-A output female port allows external devices to be charged. The built-in protection control board protects the charging and discharging process. When the blower mode is selected, the de-energized electromagnet on the fan assembly’s stepless speed control mechanism can be quickly connected by aligning it with the magnet on the battery cover of the power supply unit; the overvoltage carbon brush provides strong power, and the fan speed can be adjusted by rotating the stepless speed control knob. When the lighting mode is selected, pressing the microswitch on the bottom of the battery compartment de-energizes the electromagnet, causing it to lose its magnetic attraction to the magnet. This separates the fan assembly or lint remover assembly from the power supply unit, allowing it to be disassembled and replaced with the lighting assembly. The electromagnet at the bottom of the lighting assembly is then aligned with the magnet on the battery cover of the power supply unit. After connecting the DC male and DC charging / discharging female ports, an electrical connection is established. Turning on the main switch at the bottom of the battery compartment activates the lighting function, and the cooling fan and heat sink simultaneously dissipate heat. When not in use, the main switch at the bottom of the battery compartment is turned off. When the lint removal mode is selected, pressing the microswitch on the bottom of the battery compartment de-energizes the electromagnet, causing it to lose its magnetic attraction to the magnet. This separates the lighting or fan assembly from the power supply unit, allowing it to be disassembled. The lighting or fan assembly is then replaced with the lint removal assembly. The electromagnet at the bottom of the lint removal assembly is aligned with the magnet on the battery cover of the power supply unit. After connecting the DC male and DC charging / discharging female ports, an electrical connection is established. Turning on the main switch at the bottom of the battery compartment activates the lint removal function. When not in use, the main switch at the bottom of the battery compartment is turned off.

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