Rechargeable desk fan

Abstract

The rechargeable desk fan comprises a fan body and a supporting body, the fan body sequentially comprises an air outlet cover, a fan blade assembly, an air inlet cover and a transmission assembly from front to back, the air outlet cover is buckled at the front end of the air inlet cover, the transmission assembly comprises a transmission shell and a transmission motor, the transmission motor is installed in the transmission shell, and the fan blade assembly is installed on the supporting body. The air inlet cover is installed at the front end of the shell, the supporting body comprises a supporting base and a supporting column, the supporting base comprises an upper shell and a lower shell, the lower shell is connected to the lower side of the upper shell, a containing cavity is defined by the upper shell and the lower shell, and the lower end of the supporting column is vertically installed on the upper shell of the supporting base. The upper end of the supporting column is movably connected with the transmission shell, the transmission shell can swing upwards or downwards relative to the supporting column, and a rechargeable battery electrically connected with the transmission motor is arranged in the containing cavity of the supporting base. According to the utility model, the mobile use is realized through the rechargeable battery, the use convenience and flexibility are realized, and the operation is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of table fans, and particularly relates to a rechargeable table fan. Background Art

[0002] Table fans have the characteristics of large air volume and low noise. In hot summer, it can effectively improve indoor ventilation, prevent heatstroke and cool down, and enhance the environmental comfort, and is suitable for places such as industrial and mining enterprise warehouses, workshops, restaurants and homes.

[0003] Traditional table fans usually rely on fixed power sockets, which limits the flexibility of their use positions. They cannot work without an external power source, and their use scenarios are limited in outdoor areas and indoor areas without power sockets, etc., and cannot meet the use requirements of users in different environments.

[0004] Ensuring the stable installation and effective transmission of the impeller assembly is the key to the normal operation of the fan. In traditional table fans, the drive shaft of the drive motor of the impeller assembly cannot be reliably connected, so the stable operation of the impeller assembly cannot be guaranteed, and the stability of power transmission is poor.

[0005] Traditional table fans also have problems of unreasonable structural stability and air flow. At the same time, the air outlet cover and air inlet cover are not convenient for disassembly and maintenance. The drive motor generates heat during operation. If the heat is not dissipated in time, it will affect the performance and life of the motor. Traditional table fans do not effectively solve the heat dissipation problem of the drive motor, and the drive motor cannot be used for a long time within the normal operating temperature range, reducing the service life of the drive motor.

[0006] Traditional table fans have no other function extensions except the basic fan function. Users may also need some other additional functions, such as charging external devices, etc., and their practicability and user experience need to be improved. Summary of the Utility Model

[0007] To solve the problems raised in the above background art, the utility model provides a rechargeable table fan with a simple structural design, which can be used movably through a rechargeable battery, improves the flexibility of air supply, ensures the stable operation of the impeller assembly, enhances the heat dissipation effect of the drive motor, adds a USB jack to expand functions, improves the convenience and flexibility of use, and has reliable operation.

[0008] To achieve the above object, the present utility model provides the following technical solution: A rechargeable table fan, comprising a fan main body and a support main body. The fan main body sequentially includes an air outlet cover, a blade assembly, an air inlet cover, and a transmission assembly from front to back. The air outlet cover and the air inlet cover are matched in shape, and the air outlet cover is buckled to the front end of the air inlet cover. The air outlet cover and the air inlet cover form an accommodation space for accommodating the blade assembly. The blade assembly includes a power seat and power blades. There are multiple power blades, which are evenly distributed and connected to the outer periphery of the power seat. A first installation hole is provided in the middle of the air inlet cover. The transmission assembly includes a transmission housing and a transmission motor. The transmission motor is installed in the transmission housing. The air inlet cover is installed at the front end of the transmission housing. The transmission shaft of the transmission motor passes through the first installation hole and extends forward to be connected to the power seat to drive the power blades to rotate. The support main body includes a support base and a support column. The support base includes an upper housing and a lower housing. The lower housing is connected to the lower side of the upper housing. An accommodation cavity is formed between the upper housing and the lower housing. The lower end of the support column is vertically installed on the upper housing of the support base, and the upper end of the support column is movably connected to the transmission housing. The transmission housing can swing upward or downward relative to the support column. A rechargeable battery electrically connected to the transmission motor is provided within the accommodation cavity of the support base.

[0009] As a further elaboration of this technical solution:

[0010] Preferably, a first mounting seat is provided on the outer periphery of the first mounting hole of the air inlet cover. Multiple fixing holes are provided on the first mounting seat. Multiple clamping protrusions matching the fixing holes are provided on the transmission housing. Under the cooperation of the fixing holes and the clamping protrusions, the air inlet cover is installed at the front end of the transmission housing.

[0011] Preferably, a second mounting hole is provided in the middle of the air outlet cover. A second mounting seat is provided on the outer periphery of the second mounting hole. A connecting block is installed at the front end of the second mounting seat, and a sign board is installed at the front end of the connecting block.

[0012] Preferably, both the air outlet cover and the air inlet cover are in a dome shape, and both include a first circle and a second circle with gradually increasing diameters. The second circle is located at the outermost end. Multiple rib strips are evenly arranged from the outer peripheries of the first mounting seat and the second mounting seat to the end of the second circle.

[0013] Preferably, a snap fastener is provided on the outer periphery of the air outlet cover and the air inlet cover. The air outlet cover is detachably connected to the front end of the air inlet cover through the fixing action of the snap fastener.

[0014] Preferably, the power seat and the power blades are of an integral structure. A vertically protruding fixing rod is provided on the transmission shaft of the transmission motor. A locking hole matching the fixing rod is provided on the inner periphery of the power seat. A locking portion is provided at the front end of the transmission shaft. The locking portion, the fixing rod, and the locking hole cooperate with each other to connect the power seat to the transmission shaft.

[0015] Preferably, the front end of the transmission housing is provided with a plurality of first heat dissipation holes, and the rear end of the transmission housing is provided with a plurality of second heat dissipation holes, and the first heat dissipation holes and the second heat dissipation holes are used to release the heat generated when the transmission motor inside the transmission housing is working.

[0016] Preferably, a PCB circuit board is provided on the side of the support base, and the PCB circuit board is electrically connected to the rechargeable battery. The PCB circuit board is provided with a charging socket and a USB socket. The charging socket is used to connect an external power supply to charge the rechargeable battery, and the USB socket is used to charge an external device.

[0017] Preferably, a handle is provided on the upper side of the front end of the transmission housing, and the handle is used to assist personnel in moving the fan body and the support body.

[0018] Preferably, the rechargeable desk fan also includes a first control mechanism and a second control mechanism, the first control mechanism includes a worm gear, which is located on the upper side of the rear end of the transmission housing and is used to control the transmission housing to swing left and right relative to the supporting body, and the second control mechanism is electrically connected to the transmission motor and includes a switch button group, which is located on the front side of the support column and is used to control the start and stop and gear adjustment of the transmission motor.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] First, the utility model has a rechargeable battery electrically connected to the transmission motor in the accommodating cavity of the support base, and the setting of the rechargeable battery frees the fan from dependence on a fixed power socket. The user can move the fan to any position for use as needed, which greatly improves the convenience of use. The transmission housing can swing in multiple directions, and the user can easily adjust the air supply direction without manually adjusting the position of the fan, meeting the air supply requirements at different angles, further improving the flexibility of use.

[0021] Secondly, the connection method between the power seat and the transmission shaft of the utility model ensures the stable transmission of power, enables the fan blade assembly to rotate stably, ensures the stable operation of the fan blade assembly, improves the reliability and stability of the fan operation, and reduces failures and noise caused by power transmission problems.

[0022] Third, the utility model optimizes the air flow effect. The dome-shaped design of the air outlet hood and the air inlet hood and the setting of the ribs help to guide the air flow, so that the wind blown out by the fan blade assembly passes through the air outlet hood and the air inlet hood more smoothly, thereby improving the efficiency and effect of the air flow and providing users with a more comfortable blowing experience.

[0023] Fourthly, the design of the front and rear heat dissipation holes of the present utility model effectively dissipates the heat generated during the operation of the drive motor, enhances the heat dissipation performance of the drive housing, avoids the performance degradation or damage of the drive motor due to overheating, extends the service life of the drive motor, and ensures the long-term stable operation of the fan.

[0024] Fifthly, a PCB circuit board is provided on the side of the support base of the present utility model. The PCB circuit board is electrically connected to the rechargeable battery. The PCB circuit board is provided with a charging jack and a USB jack. The charging jack can insert a battery adapter to charge the rechargeable battery, and the charging jack can also insert the charging wire of a solar panel to charge the rechargeable battery. The present utility model not only facilitates the charging of the rechargeable battery, but also provides an additional charging function for users. The USB jack can be used to charge external devices such as mobile phones and tablet computers, increasing the added value and practicality of the product, meeting various needs of users during the use of the fan, and enhancing the user's satisfaction with the product. Description of the Drawings

[0025] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0026] Figure 1 is a schematic diagram of the overall structure of the first angle of the present utility model;

[0027] Figure 2 is a schematic diagram of the overall structure of the second angle of the present utility model;

[0028] Figure 3 is an exploded structure schematic diagram of the present utility model.

[0029] Figure 4 is Figure 3 an enlarged structure schematic diagram of part A in Detailed Embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present utility model.

[0031] Such as Figures 1 to 4As shown in the figure, the utility model relates to a rechargeable table fan, which comprises a fan main body and a support main body. The fan main body successively includes an air outlet cover 1, a blade assembly, an air inlet cover 2 and a transmission assembly from front to back. The air outlet cover 1 and the air inlet cover 2 are matched in shape. The air outlet cover 1 is buckled at the front end of the air inlet cover 2. The air outlet cover 1 and the air inlet cover 2 form an accommodation space for accommodating the blade assembly. The blade assembly includes a power seat 3 and power blades 4. There are multiple power blades 4, which are evenly distributed and connected to the outer periphery of the power seat 3. In this embodiment, there are 5 power blades 4. A first installation hole 5 is provided in the middle of the air inlet cover 2. The transmission assembly includes a transmission housing 6 and a transmission motor 30. The transmission motor 30 is installed in the transmission housing 6. The air inlet cover 2 is installed at the front end of the transmission housing 6. The transmission shaft 7 of the transmission motor 30 passes through the first installation hole 5 and extends forward to be connected with the power seat 3 to drive the power blades 4 to rotate. The support main body includes a support base 8 and a support column 9. The support base 8 includes an upper housing 81 and a lower housing 82. The lower housing 82 is connected to the lower side of the upper housing 81. An accommodation cavity 83 is formed between the upper housing 81 and the lower housing 82. The lower end of the support column 9 is vertically installed on the upper housing 81 of the support base 8. The upper end of the support column 9 is movably connected to the transmission housing 6. The transmission housing 6 can swing up or down relative to the support column 9. A rechargeable battery 10 electrically connected to the transmission motor 30 is provided in the accommodation cavity 83 of the support base 8.

[0032] As Figure 3 shown, a first mounting seat 11 is provided on the outer periphery of the first mounting hole 5 of the air inlet cover 2. A plurality of fixing holes 12 are formed in the first mounting seat 11. A plurality of clamping protrusions 13 matching the fixing holes 12 are provided on the transmission housing 6. Under the cooperation of the fixing holes 12 and the clamping protrusions 13, the air inlet cover 2 is installed at the front end of the transmission housing 6.

[0033] As Figures 1 - 3 shown, a second mounting hole 14 is provided in the middle of the air outlet cover 1. A second mounting seat 15 is provided on the outer periphery of the second mounting hole 14. A connecting block 16 is installed at the front end of the second mounting seat 15. A sign plate 17 is installed at the front end of the connecting block.

[0034] As Figures 1 - 3 shown, both the air outlet cover 1 and the air inlet cover 2 are in a dome shape, and both include a first circle and a second circle 18 with gradually increasing diameters. The second circle is located at the outermost end. A plurality of rib strips 19 are evenly arranged from the outer peripheries of the first mounting seat 11 and the second mounting seat 15 to the end of the second circle.

[0035] As Figures 1 - 3 shown, a fastening buckle 20 is provided on the outer periphery of the air outlet cover 1 and the air inlet cover 2. The air outlet cover 1 is detachably connected to the front end of the air inlet cover 2 through the fixing action of the fastening buckle 20.

[0036] As Figures 1 - 3As shown, the power wind blade 4 is in the shape of a bird's wing and is used to push air to flow forward. The power seat 3 and the power wind blade 4 are of an integral structure. A vertically protruding fixing rod 21 is provided on the transmission shaft 7 of the transmission motor 30. A locking hole (not shown in the figure) matching the fixing rod 21 is provided on the inner circumference of the power seat 3. A locking portion 22 is provided at the front end of the transmission shaft. The locking portion 22, the fixing rod 21 and the locking hole cooperate with each other to connect the power seat 3 to the transmission shaft 7.

[0037] As Figures 1 - 4 shown, a plurality of through first heat dissipation holes 23 are provided at the front end of the transmission housing 6, and a plurality of through second heat dissipation holes 24 are provided at the rear end of the transmission housing 6. The first heat dissipation holes 23 and the second heat dissipation holes 24 are used to release the heat generated when the transmission motor 30 inside the inner circumference of the transmission housing 6 operates.

[0038] As Figures 2 - 4 shown, a PCB circuit board 31 is provided on the side of the support base 8. The PCB circuit board 31 is electrically connected to the rechargeable battery 10. The PCB circuit board 31 is provided with a charging jack 25 and a USB jack 26. The charging jack 25 is used to connect an external power supply to charge the rechargeable battery 10, and the USB jack 26 is used to charge an external device.

[0039] As Figures 1 - 4 shown, a handle 27 is provided on the upper side of the front end of the transmission housing 6. The handle 27 is used to assist personnel in moving the fan main body and the support main body.

[0040] As Figures 1 - 4 shown, the rechargeable table fan further includes a first control mechanism and a second control mechanism. The first control mechanism includes a worm and worm gear 28, which is located on the upper side of the rear end of the transmission housing 6 and is used to control the left and right swing of the transmission housing 6 relative to the support main body. The second control mechanism is electrically connected to the transmission motor 30 and includes a switch button group 29. The switch button group 29 is located on the front side of the support column 9 and is used to control the start and stop of the transmission motor 30 and the gear adjustment.

[0041] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "front", "rear", "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rechargeable table fan, characterized in that: It includes a fan main body and a support main body. The fan main body sequentially includes an air outlet cover, a blade assembly, an air inlet cover, and a transmission assembly from front to back. The air outlet cover and the air inlet cover are matched in shape. The air outlet cover is buckled to the front end of the air inlet cover. The air outlet cover and the air inlet cover form a receiving space for accommodating the blade assembly. The blade assembly includes a power seat and power blades. There are multiple power blades, which are evenly distributed and connected to the outer periphery of the power seat. A first mounting hole is provided in the middle of the air inlet cover. The transmission assembly includes a transmission housing and a transmission motor. The transmission motor is installed in the transmission housing. The air inlet cover is installed at the front end of the transmission housing. The transmission shaft of the transmission motor passes through the first mounting hole and extends forward to be connected to the power seat to drive the power blades to rotate. The support main body includes a support base and a support column. The support base includes an upper housing and a lower housing. The lower housing is connected to the lower side of the upper housing. A receiving cavity is formed between the upper housing and the lower housing. The lower end of the support column is vertically installed on the upper housing of the support base. The upper end of the support column is movably connected to the transmission housing. The transmission housing can swing up or down relative to the support column. A rechargeable battery electrically connected to the transmission motor is provided in the receiving cavity of the support base.

2. The rechargeable table fan according to claim 1, wherein: A first mounting seat is provided on the outer periphery of the first mounting hole of the air inlet cover. Multiple fixing holes are provided in the first mounting seat. Multiple clamping protrusions matching the fixing holes are provided on the transmission housing. The air inlet cover is installed at the front end of the transmission housing under the cooperation of the fixing holes and the clamping protrusions.

3. The rechargeable table fan according to claim 2, wherein: A second mounting hole is provided in the middle of the air outlet cover. A second mounting seat is provided on the outer periphery of the second mounting hole. A connecting block is installed at the front end of the second mounting seat. A sign board is installed at the front end of the connecting block.

4. The rechargeable table fan according to claim 3, wherein: Both the air outlet cover and the air inlet cover are in a dome shape, and both include a first circle and a second circle with gradually increasing diameters. The second circle is located at the outermost end. Multiple rib strips are evenly arranged from the outer peripheries of the first mounting seat and the second mounting seat to the end of the second circle.

5. The rechargeable table fan according to claim 4, characterized in that: A fastening buckle is provided on the outer periphery of the air outlet cover and the air inlet cover. The air outlet cover is detachably connected to the front end of the air inlet cover through the fixing action of the fastening buckle.

6. The rechargeable table fan according to claim 5, wherein: The power seat and the power blades are of an integral structure. A vertically protruding fixing rod is provided on the transmission shaft of the transmission motor. A locking hole matching the fixing rod is provided on the inner periphery of the power seat. A locking portion is provided at the front end of the transmission shaft. The locking portion, the fixing rod, and the locking hole cooperate with each other to connect the power seat to the transmission shaft.

7. The rechargeable table fan according to claim 6, wherein: Multiple through first heat dissipation holes are provided at the front end of the transmission housing. Multiple through second heat dissipation holes are provided at the rear end of the transmission housing. The first heat dissipation holes and the second heat dissipation holes are used to release the heat generated when the transmission motor inside the transmission housing works.

8. The rechargeable table fan according to claim 7, wherein: A PCB circuit board is provided on the side of the support base. The PCB circuit board is electrically connected to the rechargeable battery. The PCB circuit board is provided with a charging jack and a USB jack. The charging jack is used to connect an external power supply to charge the rechargeable battery. The USB jack is used to charge external devices.

9. The rechargeable table fan according to claim 8, wherein: A handle is provided on the upper side of the front end of the transmission housing. The handle is used to assist personnel in moving the fan main body and the support main body.

10. The rechargeable table fan according to any one of claims 1 to 9, characterized in that: It also includes a first control mechanism and a second control mechanism. The first control mechanism includes a worm and worm gear, which is located on the upper side of the rear end of the transmission housing and is used to control the left-right swing of the transmission housing relative to the support body. The second control mechanism is electrically connected to the transmission motor and includes a switch button group, which is located on the front side of the support column and is used to control the start-stop and gear adjustment of the transmission motor.

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