Desktop fan

Abstract

The utility model discloses a desktop fan. The desktop fan comprises a base, an air blowing part and a control part, the air blowing part and the control part are fixed on the base; the air blowing part comprises blades, a protecting cover and a motor for driving the blades to rotate, and the blades are fixed in the protecting cover through the motor; the control part comprises a control chip, a battery and a temperature sensor; the battery, the temperature sensor and the motor are electrically connected with the control chip; a voltage regulating circuit is arranged between the temperature sensor and the motor, and the voltage regulating circuit is used for regulating the voltage value applied to the motor according to the reading of the temperature sensor. According to the portable fan, the blowing part and the control part are arranged, the voltage regulating circuit can regulate the voltage value applied to the motor according to the reading of the temperature sensor, then the rotating speed of the blades is flexibly regulated, and the comfort of the portable fan and the user experience are improved; according to the desktop fan, the base and the air blowing part are arranged, the base can stably support the blades and the protective cover, the angles of the blades can be conveniently adjusted, and the stability and use convenience of the desktop fan are improved.

Description

Technical Field

[0001] The utility model relates to the field of electric fans, in particular to a desktop fan. Background Art

[0002] With the development of the times, consumer goods have been continuously popularized, and people have new demands for traditional fans, such as wind speed, availability during power outages, portability, multi - functionality, etc. Currently, there are various portable fans on the market, such as handheld personal fans, neck - hanging fans, small fans with makeup mirrors, etc. Portable desktop fans have also changed with people's needs, meeting different demand scenarios with multiple functions, being portable and available during power outages, which further expands the application scenarios of the products. However, the existing desktop fans have single function and limited application scenarios. For some multi - functional fans, multiple functions cannot be used simultaneously. Some fans have too small air outlets and insufficient wind speed, resulting in poor heat dissipation experience, which greatly affects the usability and user experience of portable fans. Summary of the Invention

[0003] To solve the above problems, the purpose of the utility model is to provide a desktop fan, so that the blades can flexibly adjust the rotation speed according to the temperature, improving the usability and user experience of the portable fan.

[0004] The technical solution adopted by the utility model to solve its problems is as follows:

[0005] A desktop fan includes a base, a blowing part and a control part; the blowing part and the control part are fixed on the base; the blowing part includes blades, a protective cover and a motor for driving the blades to rotate, and the blades are fixed in the protective cover through the motor; the control part includes a control chip, a battery and a temperature sensor, and the battery, the temperature sensor and the motor are all electrically connected to the control chip; a voltage regulating circuit is also provided between the temperature sensor and the motor, and the voltage regulating circuit is used to adjust the voltage value applied to the motor according to the reading of the temperature sensor.

[0006] The above - mentioned desktop fan has at least the following beneficial effects: By setting the blowing part and the control part, the voltage regulating circuit can adjust the voltage value applied to the motor according to the reading of the temperature sensor, thereby flexibly adjusting the rotation speed of the blades, improving the comfort and user experience of the portable fan; by setting the base and the blowing part, the base can stably support the blades and the protective cover, and is also convenient for adjusting the angle of the blades, improving the stability and usability of the desktop fan.

[0007] Furthermore, support rods are provided on both sides of the base, and both sides of the protective cover are movably connected to the support rods to adjust the angle between the blades and the base. By setting the support rods, the connection flexibility between the base and the protective cover is ensured, and the adjustment angle of the blades is increased.

[0008] Furthermore, a rotating seat is provided at the upper end of the support rod, and connecting holes cooperating with the rotating seat are provided on both sides of the protective cover; the motor is electrically connected to the control chip through the connecting holes. By providing the rotating seat and the connecting holes, the connection stability between the base and the protective cover is ensured, avoiding the wires from restricting the adjustment angle between the base and the protective cover, and improving the usability of the desktop fan.

[0009] Furthermore, a lead groove for wire routing is also provided between the connecting hole and the motor. By providing the lead groove, the protection of the wires is effectively improved, avoiding damage to the wires caused by the rotating blades during the rotation process, and improving the working stability of the desktop fan.

[0010] Furthermore, a charging circuit and a protection circuit are also provided between the control chip and the battery, and the charging circuit is also connected with a charging interface. By providing the charging circuit and the protection circuit, the voltage stabilization protection between the control chip and the battery is improved, avoiding damage to the control chip caused by the battery and the external power supply, and improving the service life of the desktop fan.

[0011] Furthermore, the protective cover includes a cover plate and a housing for accommodating the blades. By providing the cover plate and the housing, the protection performance of the blades is improved, and the working stability of the desktop fan is improved.

[0012] Furthermore, clamping blocks are provided on the inner wall of the housing, and mounting holes cooperating with the clamping blocks are provided on the outer side of the cover plate. By providing the clamping blocks and the mounting holes, the connection flexibility between the cover plate and the housing is improved, facilitating the assembly and maintenance of the blowing part, and improving the integrity and maintenance convenience of the desktop fan.

[0013] Furthermore, a hook is also provided at the lower end of the base, and the lower end of the hook is hinged to the base. By providing the hook, it is convenient to fix the base in different usage environments, and the usability of the desktop fan is improved.

[0014] Furthermore, a groove cooperating with the hook is provided at the lower end of the base, and anti-slip strips are provided on the side surface of the groove. By providing the groove and the anti-slip strips, the integrity of the base and the placement stability are improved, avoiding the situation of the base sliding and affecting the working stability of the desktop fan.

[0015] Furthermore, control buttons and indicator lights are also provided on the base, and both the control buttons and the indicator lights are electrically connected to the control chip. By providing the control buttons and the indicator lights, it is convenient for the user to adjust the opening degree of the motor through the control buttons and to master the working state of the desktop fan through the indicator lights, improving the usability of the desktop fan.

[0016] The beneficial effects of the above desktop fan are as follows: By providing a blowing part and a control part, the voltage regulating circuit can adjust the voltage value applied to the motor according to the readings of the temperature sensor, and then flexibly adjust the rotation speed of the blades, improving the comfort and user experience of the portable fan; By providing a base and a blowing part, the base can stably support the blades and the protective cover, and also facilitate the adjustment of the blade angle, improving the stability and usability of the desktop fan; By providing a support rod, the flexibility of the connection between the base and the protective cover is ensured, and the adjustment angle of the blades is increased; By providing a rotating seat and a connection hole, the connection stability between the base and the protective cover is ensured, avoiding the wires from restricting the adjustment angle between the base and the protective cover, and improving the usability of the desktop fan; By providing a charging circuit and a protection circuit, the voltage stabilization and protection between the control chip and the battery are improved, avoiding damage to the control chip caused by the battery and the external power supply, and increasing the service life of the desktop fan.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a schematic structural diagram of a desktop fan according to an embodiment of the present utility model;

[0020] Figure 2 is an exploded structural diagram of a desktop fan according to an embodiment of the present utility model;

[0021] Figure 3 is a schematic structural diagram of a desktop fan from another angle according to an embodiment of the present utility model;

[0022] Figure 4 is a schematic structural diagram of a desktop fan from another angle according to an embodiment of the present utility model;

[0023] Figure 5 is a schematic diagram of the principle of a desktop fan according to an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0025] Refer to Figures 1 to 5, an embodiment of the present utility model provides a desktop fan, which includes a base 100, a blowing part 200 and a control part 300; the blowing part 200 and the control part 300 are fixed on the base 100; the blowing part 200 includes blades 210, a protective cover 220 and a motor 230 for driving the blades 210 to rotate, and the blades 210 are fixed in the protective cover 220 through the motor 230; the control part 300 includes a control chip 310, a battery 320 and a temperature sensor 330, and the battery 320, the temperature sensor 330 and the motor 230 are all electrically connected to the control chip 310; a voltage regulating circuit 340 is further provided between the temperature sensor 330 and the motor 230, and the voltage regulating circuit 340 is used to adjust the voltage value applied to the motor 230 according to the reading of the temperature sensor 330.

[0026] By providing the blowing part 200 and the control part 300, the voltage regulating circuit 340 can adjust the voltage value applied to the motor 230 according to the reading of the temperature sensor 330, and then flexibly adjust the rotation speed of the blades 210, improving the comfort and user experience of the portable fan; by providing the base 100 and the blowing part 200, the base 100 can stably support the blades 210 and the protective cover 220, and is also convenient for adjusting the angle of the blades 210, improving the stability and usability of the desktop fan.

[0027] In another embodiment, support rods 110 are provided on both sides of the base 100, and both sides of the protective cover 220 are movably connected to the support rods 110 to adjust the angle between the blades 210 and the base 100. By providing the support rods 110, the connection flexibility between the base 100 and the protective cover 220 is ensured, and the adjustment angle of the blades 210 is increased.

[0028] In another embodiment, a rotating seat 111 is provided at the upper end of the support rod 110, and connection holes 221 for cooperating with the rotating seat 111 are provided on both sides of the protective cover 220; the motor 230 is electrically connected to the control chip 310 through the connection holes 221. By providing the rotating seat 111 and the connection holes 221, the connection stability between the base 100 and the protective cover 220 is ensured, avoiding the wires from restricting the adjustment angle between the base 100 and the protective cover 220, and improving the usability of the desktop fan.

[0029] In another embodiment, a lead groove 240 for wire routing is further provided between the connection hole 221 and the motor 230. By providing the lead groove 240, the protection of the wires is effectively improved, avoiding damage to the wires caused by the rotation of the blades 210, and improving the working stability of the desktop fan.

[0030] In another embodiment, a charging circuit 350 and a protection circuit 360 are further provided between the control chip 310 and the battery 320. The charging circuit 350 is also connected with a charging interface 351. By providing the charging circuit 350 and the protection circuit 360, the voltage stabilization protection between the control chip 310 and the battery 320 is improved, damage to the control chip 310 caused by the battery 320 and the external power supply is avoided, and the service life of the desktop fan is prolonged.

[0031] In another embodiment, the protective cover 220 includes a cover plate 222 and a housing 223 for accommodating the blade 210. By providing the cover plate 222 and the housing 223, the protection performance of the blade 210 is improved, and the working stability of the desktop fan is enhanced.

[0032] In another embodiment, a clamping block 224 is provided on the inner wall of the housing 223, and a mounting hole 225 cooperating with the clamping block 224 is provided on the outer side of the cover plate 222. By providing the clamping block 224 and the mounting hole 225, the connection flexibility between the cover plate 222 and the housing 223 is improved, the assembly and maintenance of the blowing part 200 are facilitated, and the integrity and maintenance convenience of the desktop fan are enhanced.

[0033] In another embodiment, a hook 120 is further provided at the lower end of the base 100, and the lower end of the hook 120 is hinged to the base 100. By providing the hook 120, it is convenient to fix the base 100 in different usage environments, and the usage convenience of the desktop fan is improved.

[0034] In another embodiment, a groove 130 cooperating with the hook 120 is provided at the lower end of the base 100, and an anti-slip strip 140 is provided on the side of the groove 130. By providing the groove 130 and the anti-slip strip 140, the integrity of the base 100 and the placement stability are improved, and the situation of the base 100 sliding, which affects the working stability of the desktop fan, is avoided.

[0035] In another embodiment, a control button 150 and an indicator light 160 are further provided on the base 100. Both the control button 150 and the indicator light 160 are electrically connected to the control chip 310. By providing the control button 150 and the indicator light 160, it is convenient for the user to adjust the opening degree of the motor 230 through the control button 150 and to master the working state of the desktop fan through the indicator light 160, and the usage convenience of the desktop fan is improved.

[0036] Refer to Figure 5 , in another embodiment, a switching circuit 370 is further provided between the voltage regulating circuit 340, the charging interface 351 and the protection circuit 360. By providing the switching circuit 370, it is convenient for the voltage regulating circuit 340 to quickly switch between external power supply and battery 320 power supply, improve the power supply stability of the motor 230, and prolong the service life of the desktop fan.

[0037] The working principle of the present utility model will be further described below.

[0038] During the production process, first, according to the requirements of the product, select the base 100 and the blowing part 200 with corresponding shapes and specifications, and fix the blade 210 in the protective cover 220 through the motor 230; then, fixedly install the control part 300 in the base 100, and electrically connect the battery 320, the temperature sensor 330, the control button 150 and the indicator light 160 to the control chip 310; then, install the wire groove 240 in the cover body 223 and lead the wire, so that the lead wire of the motor 230 passes through the wire groove 240 and the connection hole 221 and is electrically connected to the control chip 310. On the cover body 223, insert the clamping block 224 into the installation hole 225 to fixedly install the cover plate 222 on the cover body 223; then, insert the rotating seat 111 at the upper end of the support rod 110 into the connection hole 221 to movably connect the blowing part 200 to the base 100; finally, install the hook 120 in the groove 130 at the lower end of the base 100, and install the anti-slip strips 140 on both sides of the groove 130 to complete the assembly process of the desktop fan. The whole assembly process is efficient and controllable, improving the production efficiency of the desktop fan.

[0039] During use, the user starts the desktop fan by pressing the control button 150. After the control chip 310 is powered on, it sends a working instruction to the motor 230. When directly powered by an external power supply, the switching circuit 370 conducts to connect the charging interface 351 and the voltage regulating circuit 340. The voltage regulating circuit 340 provides a working voltage to the motor 230, thereby causing the motor 230 to drive the blades 210 to rotate, and the desktop fan starts to work. At the same time, the external power supply charges the battery 320 through the charging interface 351, the charging circuit 350, and the protection circuit 360. Among them, the charging circuit 350 conducts the charging interface 351 and the protection circuit 360 when there is an input voltage at the charging interface 351. The protection circuit 360 is used to ensure that the charging voltage applied to the battery 320 remains within a safe range. During operation, the control chip 310 controls the voltage regulating circuit 340 to adjust the voltage value applied to the motor 230 according to the reading of the temperature sensor 330, so as to change the rotation speeds of the motor 230 and the blades 210. Exemplarily, when the temperature sensor 330 detects a temperature rise, the control chip 310 issues a boosting instruction to the voltage regulating circuit 340, and the voltage regulating circuit 340 increases the voltage value applied to the motor 230 to increase the rotation speeds of the motor 230 and the blades 210, ensuring the comfort of the user. At the same time, the user can also rotate the blowing part 200 to change the angle between the blades 210 and the base 100 and adjust the air outlet angle of the blades 210. When switched to battery 320 power supply, the switching circuit 370 conducts the protection circuit 360 and the voltage regulating circuit 340, and the battery 320 provides a working voltage to the voltage regulating circuit 340. At this time, the operating state of the desktop fan is the same as when directly powered by an external power supply. The control chip 310 controls the voltage regulating circuit 340 to adjust the voltage value applied to the motor 230 according to the reading of the temperature sensor 330. The indicator light 160 can clearly display the working state of the desktop fan, improving the usability and user experience of the portable fan. In addition, the desktop fan can be stably placed on the desktop through the anti-slip strip 140 to prevent the desktop fan from shaking, and can also be hung upside down according to needs through the hook 120, improving the compatibility of the desktop fan.

[0040] As can be seen from the above description, for the desktop fan of the present utility model, by providing the blowing part 200 and the control part 300, the voltage regulating circuit 340 can adjust the voltage value applied to the motor 230 according to the reading of the temperature sensor 330, thereby flexibly adjusting the rotation speed of the blade 210 and improving the comfort and user experience of the portable fan; by providing the base 100 and the blowing part 200, the base 100 can stably support the blade 210 and the protective cover 220, and is also convenient for adjusting the angle of the blade 210, improving the stability and usability of the desktop fan; by providing the support rod 110, the flexibility of the connection between the base 100 and the protective cover 220 is ensured, and the adjustment angle of the blade 210 is increased; by providing the rotating seat 111 and the connection hole 221, the connection stability between the base 100 and the protective cover 220 is ensured, preventing the wires from restricting the adjustment angle between the base 100 and the protective cover 220 and improving the usability of the desktop fan; by providing the charging circuit 350 and the protection circuit 360, the voltage stabilization protection between the control chip 310 and the battery 320 is improved, preventing the battery 320 and the external power supply from damaging the control chip 310 and increasing the service life of the desktop fan.

[0041] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present utility model.

Claims

1. A desktop fan, characterized in that: It includes a base, a blowing part and a control part; the blowing part and the control part are fixed on the base; the blowing part includes blades, a protective cover and a motor for driving the blades to rotate, and the blades are fixed in the protective cover by the motor; the control part includes a control chip, a battery and a temperature sensor, and the battery, the temperature sensor and the motor are all electrically connected to the control chip; a voltage regulating circuit is also provided between the temperature sensor and the motor, and the voltage regulating circuit is used to adjust the voltage value applied to the motor according to the reading of the temperature sensor.

2. A desktop fan according to claim 1, characterized in that: Support rods are arranged on both sides of the base, and both sides of the protective cover are movably connected to the support rods to adjust the angle between the blades and the base.

3. A desktop fan according to claim 2, characterized in that: A rotating seat is provided at the upper end of the support rod, and connecting holes matching with the rotating seat are provided at both sides of the protective cover; the motor is electrically connected to the control chip through the connecting holes.

4. A desktop fan according to claim 3, characterized in that: A wire groove for wiring is also provided between the connecting hole and the motor.

5. A desktop fan according to claim 1, characterized in that: A charging circuit and a protection circuit are also provided between the control chip and the battery, and the charging circuit is also connected to a charging interface.

6. A desktop fan according to claim 1, characterized in that: The protective cover comprises a cover plate and a cover body for accommodating the blades.

7. A desktop fan according to claim 6, characterized in that: The inner wall of the cover body is provided with a clamping block, and the outer side of the cover plate is provided with a mounting hole matched with the clamping block.

8. A desktop fan according to claim 1, characterized in that: A hook is also provided at the lower end of the base, and the lower end of the hook is hinged to the base.

9. A desktop fan according to claim 8, characterized in that: The lower end of the base is provided with a groove matched with the hook, and the side surface of the groove is provided with an anti-slip strip.

10. The desktop fan according to claim 1, characterized in that: The base is also provided with a control button and an indicator light, and both the control button and the indicator light are electrically connected to the control chip.

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