Handheld fan

Abstract

To provide a handheld fan that improves air flow speed. [Solution] A handheld fan in which the entire tubular fan is divided into two chambers using a windshield plate and a fan assembly is provided in the chamber, thereby shortening the duct length and improving the airflow speed. The handheld fan 10 is arranged in a curved tubular shape, with the curved portion transitioning in an arc shape, and the handheld fan comprises a fan section 2 for blowing air, and a handheld portion 1 in which the side surface of one end of the fan section is connected to the side surface of one end of the handheld portion to create a smooth transition, and the fan section or handheld portion is provided with a windshield plate that blocks the air flow within the fan section from entering the handheld portion.

Description

[Technical field]

[0001] This utility model relates to the technical field of handheld fans, and in particular to handheld fans. [Background technology]

[0002] During the hot summer, people spend their daily lives working, studying, and playing in front of their computers indoors. When you are doing summer activities, air conditioners are one of the tools to avoid summer heat. In addition to air conditioners, portable hand-held fans are also Handheld fans are also commonly used in people's daily lives to avoid the heat, and as the name suggests, handheld fans are held in the hand. It has the advantages of being easy to carry and operate.

[0003] Existing handheld fans are inverted L-shaped tubular configuration, with the user holding the long end and the air inlet at the bottom. The short end is provided with a wind outlet for blowing out air, and the long end is provided with a fan assembly. The airflow is drawn in from the air inlet, passes through the entire L-shaped tubular structure, and then exits from the air outlet. This allows the air to be blown out from the fan, realizing the blowing process of a hand-held fan. The duct of the handheld fan is too long, which affects the airflow speed and is prone to forming turbulence. . Summary of the Invention [Problem to be solved by the invention]

[0004] The object of this utility model is to provide a handheld fan. The entire tubular fan is divided into two chambers using a plate, and the chamber near the air inlet is By installing a fan assembly in the duct, the duct length is shortened and the air flow rate is improved. This provides the advantage of [Means for solving the problem]

[0005] In order to achieve the above object, the technical solution adopted in this utility model is that the handheld fan is: A hand-held fan arranged in a curved tubular shape, the curved part transitioning into an arc shape, and a hand-held fan The machine is provided with a fan section and a handheld section, and the fan section is for blowing air, and the side peripheral surface and the front surface of one end of the fan section are a hand-held portion that is connected to a side peripheral surface at one end of the hand-held portion to form a smooth transition; The fan unit or the hand-held unit is provided with a device for blocking the airflow in the electric fan unit from entering the hand-held unit. A windshield is provided.

[0006] Preferably, the curved portion is provided on the electric fan portion and is provided adjacent to the hand-held portion. The windshield plate is provided at the curved portion.

[0007] Preferably, the fan portion having the curved portion forms an elbow structure, and the hand-held portion It has a straight pipe structure.

[0008] Preferably, the bending angle of the elbow structure is 90° to 120°, and After the two parts are connected, they are arranged in an inverted L shape.

[0009] Preferably, the electric fan unit has an air inlet and an air outlet, and An airflow passage is formed in the airflow passage, and air is drawn into the airflow passage from the air inlet, and the air outlet A fan assembly is disposed to blow air from the

[0010] Preferably, the electric fan assembly is mounted on a side of the airflow passage close to the air outlet. and a housing that fits onto the inner surface of the airflow passage. Furthermore, a ventilation outlet is provided between the inner surface of the housing and the outer surface of the hood to allow the airflow to pass through. An airflow regulating port is formed.

[0011] Preferably, the air flow car is provided between the inner surface of the case and the outer surface of the hood body. The grilles are connected to each other, dividing the cooking area into multiple sections.

[0012] Preferably, the handle portion includes a control circuit board and a control circuit connected to the control circuit board. A battery is provided, and a wiring groove is provided in the wind guide hood. A through hole is provided in the air flow passage at the joint, and the through hole is provided corresponding to the wiring groove. The wiring groove is fitted into the through hole, and the electric fan assembly is connected to the control circuit board via a wire. The two are connected via a wire.

[0013] Preferably, the wiring groove is a hollow structure on one side of the grille, and both ends of the hollow structure are It penetrates the inner surface of the hood body and the outer surface of the housing.

[0014] Preferably, a guide structure is provided between the outer surface of the case and the inner surface of the air flow passage, The communicating portion between the through hole and the wiring groove is located inside the guide structure. Effect of the Invention

[0015] After adopting the above technical solution, the utility model is a handheld fan comprising a fan part and a handheld part; The hand-held part can be held by a user, and the fan part is used for blowing air. The side surface and the side surface at one end of the handle are connected, allowing the connection to transition smoothly. The handheld fan is generally arranged in a curved tubular shape, and the curved part transitions into an arc shape, It forms an inverted L-shaped handheld fan, and has a beautiful appearance. A wind shield is provided on the fan section or the handheld section. The windshield can block the airflow in the fan from entering the handheld portion, and the airflow in the fan can be Reduces turbulence and improves air flow efficiency.

[0016] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, First, we will briefly introduce the drawings necessary for explaining the embodiments or the prior art. The drawings are merely some embodiments of the present invention and are not intended to be limiting to the scope of the invention, but rather to be illustrative, not limiting, and are not intended to be limiting. It is clear that other drawings can be obtained based on these drawings without paying any fees. Either way. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a schematic structural diagram of the present invention. [Diagram 2] FIG. 2 is an explosion diagram corresponding to FIG. 1. [Diagram 3] 3 is a schematic diagram of the partial configuration of FIG. 2 from another viewpoint. FIG. [Figure 4] FIG. 2 is a schematic structural diagram of the air guide hood of the present utility model. [Diagram 5] FIG.

[0018] [Explanation of symbols] 10, hand-held fan, 101, curved portion, 1, hand-held portion, 11, inner case, 12, first locking block 2, electric fan unit, 21, air outlet, 22, air inlet, 23, air flow passage, 24, first engagement groove, 25, second engagement groove Stop block, 26, guide groove, 27, through hole, 28, windshield plate, 3, wind guide hood, 31, hood body , 311, outer mounting groove, 312, inner mounting groove, 313, grill, 314, mounting post, 315, guide structure Structure, 3151, guide edge, 316, wiring groove, 317, second locking groove, 32, housing, 321, air flow adjustment Logic, 4, fan assembly, 41, fan head, 42, rotor, 43, stator, 44, display Screen, 45, cover body, 5, mounting base, 6, battery, 7, key, 8, control circuit board. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] The present invention will now be described in more detail with reference to the accompanying drawings.

[0020] The specific embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Those skilled in the art, after reading this specification, may make modifications to the present embodiments, if necessary, without making any creative contribution thereto. However, as long as it falls within the scope of the claims of this utility model, it will be protected by the Patent Law.

[0021] As shown in FIG. 1 and FIG. 2, this embodiment includes an electric fan unit 2 and a handheld device connected to one end of the electric fan unit 2. The handheld fan 10 has a hand-held part 1, which is held by a user. A battery 6 and a control circuit board 8 connected to the battery 6 are provided in the 7, and the electric fan unit 2 is provided with an electric fan assembly 4 capable of blowing out an air current. The fan assembly 4 is similarly connected to a control circuit board 8, and the user presses a key 7 to operate the control circuit board. The circuit board 8 controls the opening and closing of the electric fan and the size of the shift bit. The charging port is connected to the control circuit board 8. The battery 6 is a rechargeable battery 6, and the user can charge the battery from an external source via a charging port. Connect and charge battery 6.

[0022] Preferably, the side surface of one end of the electric fan part 2 and the side surface of one end of the hand-held part 1 are connected to each other, and the connection part The handheld fan 10 is arranged in a curved tubular shape, and the curved portion 101 transitions in an arc shape. The curved portion 101 in this embodiment is also provided in the electric fan portion 2. The fan unit 101 is provided adjacent to the hand-held unit 1. In another embodiment, the fan unit 2 and the hand-held unit 1 may be provided adjacent to the hand-held unit 1. The bending portion 101 may be provided at the connection position, or the bending portion 101 may be provided at the hand-held portion 1.

[0023] The electric fan section 2 and the hand-held section 1 are both formed as tubular members, and the bent section is provided in the electric fan section 2. In this case, the hand-held portion 1 has a straight pipe structure, and the fan portion 2 has an elbow structure. In this embodiment, when the bent portion is provided at the connecting position between the electric fan unit 2 and the hand-held unit 1, the hand-held unit 1 The electric fan unit 2 has an elbow structure. Alternatively, the hand-held unit 1 has a curved portion 101. In this case, the hand-held portion 1 has an elbow structure, and the fan portion 2 has a straight pipe structure.

[0024] Preferably, the bending angle of the elbow structure of the electric fan unit 2 is 90°, and both ends of the elbow structure are open. The diameter of the opening near the handle 1 is equal to the diameter of the electric fan unit 2, and the handle 1 and the electric fan unit 2 are connected. After the electric fan 10 is assembled, the entire electric fan 10 is arranged in an inverted L shape. The diameters of both openings are equal.

[0025] In other embodiments, the bend angle of the elbow structure is 100°, 110°, or 120°. In the embodiment, the elbow structure has a diameter near the opening of the handle 1 that is smaller than the opening of the handle 1. The diameter is larger than the diameter of the fan unit 2, so that the airflow blown out from the fan unit 2 is more concentrated and the flow rate is The variable elbow structure allows the handpiece to be moved faster. The diameter of the opening of the hand-held portion 1 is smaller than the diameter of the opening of the hand-held portion 2. This allows the airflow to be more dispersed and the flow rate to be slower.

[0026] Preferably, an opening of the electric fan unit 2 away from one end of the handheld unit 1 is set as an air outlet 21, and the electric fan Since the air inlet 22 is provided on the outer corner side of the curved portion 101 of the machine part 2, the air inlet 22 and the air outlet 21 are The airflow between the air inlet 22 and the air outlet 21 is parallel to the horizontal direction, improving the efficiency of airflow. A passage 23 is formed, and a fan assembly 4 is provided in the fan section 2. The fan assembly 4 is At the same time, the airflow is sucked in from the air inlet 22, accelerated through the airflow passage 23, and then blown out from the air outlet 21. It is possible.

[0027] As shown in FIG. 5, at one end of the electric fan unit 2 near the handheld unit 1, a A windshield plate 28 is provided that can divide the fan section 1 into two chambers. This prevents the airflow from entering the hand-held portion 1, thereby reducing the airflow turbulence phenomenon, and thus the fan assembly Improves the ventilation efficiency of chamber 4.

[0028] Preferably, the shape of the windshield plate 28 is adapted to the inner wall of the electric fan unit 2. Specifically, the windshield plate 28 is an arcuate shape. The curved radians fit the inside surface of the air passage, making the supply air passage tubular. By forming the inner surface of the duct, the air turbulence phenomenon is further reduced, the air flow speed is improved, and the noise level is reduced. is also reduced.

[0029] Preferably, the fan assembly 4 comprises one fan head 41, a motor stator 43, a rotor 4 2, the fan head 41 has a plurality of fan blades, which are equally spaced around the hub. At least a part of the diameter of the blade increases stepwise along the direction from the air inlet 22 to the air outlet 21. The funnel-shaped hub is formed, and the airflow passing through the hub can form a high-pressure airflow, and the airflow The flow rate is further increased.

[0030] A mounting hole is provided on the surface of the hub of the electric fan head 41 close to the air outlet 21, and the motor is attached to the side wall of the mounting hole. The rotor 42 of the motor is attached to the rotor 42, so that when the motor is energized, the rotor 42 drives the fan. The hub of the head 41 can be rotated, and by rotating the hub, the fan blades can be rotated. It can generate airflow.

[0031] As shown in FIG. 3 and FIG. 4, the air outlet 21 has a structure for arranging the airflow blown out from the air outlet 21. The air guide hood 3 is provided to reduce airflow noise. The hood body 31 has a housing 32, the housing 32 being tubular. The hood body 31 is provided in the housing 32. The axial center line of the hood body 31 is aligned with the axial center line of the housing 32. This results in a more consistent and uniform air flow.

[0032] The outer surface of the housing 32 is in close contact with the inner surface of the air flow passage 23. An airflow regulating port 321 is formed between the hood body 31 and the airflow regulating port 321. The airflow of the air outlet 21 is arranged so that the airflow can be adjusted. The outer surface of the main body 31 is connected to the main body 31 by a plurality of grilles 313, which are arranged to expose the air flow. It can be organized as follows.

[0033] Preferably, an outer mounting groove 311 is provided on the hood body 31 on the side of the wind outlet 21, and the hood body 31 An inner mounting groove 312 is provided on the wind inlet 22 side, and the inner mounting groove 312 and the outer mounting groove 311 are A stopper layer is provided between the inner mounting groove 312 and the stator 43 of the power supply device. The outer mounting groove 311 is provided with a mounting post 314 that can be attached to the handheld fan 10. A display screen 44 capable of displaying information such as power consumption information and the like is provided. A transparent cover is attached to the outer mounting groove 311. The body 45 can be attached to cover the display screen 44, and the display screen 44 can be protected. can be done.

[0034] The air guide hood 3 is provided with a wiring groove 316, and the air flow passage 23 attached to the air guide hood 3 is A through hole 27 is provided at one location, and the through hole 27 thus provided allows air to pass through the through hole 27. The airflow in the flow passage 23 can be prevented from entering the handle portion 1, and the through hole 27 is formed in the wiring groove 3. The wiring groove 316 is provided in correspondence with the through hole 27, and the electric fan assembly 4 and the display screen 16 are connected to each other. The surface 44 is connected to the control circuit board 8 by a conductor, so that the user can press the key 7, The control circuit board 8 controls the fan assembly 4 and the display screen 44. The control contents include adjusting the wind speed and switches of the electric fan assembly 4, and the display screen 4 4, or to control the display screen 44, including the light screen and the breath screen. The battery 6 provides power to the display screen 44 and the fan assembly 4 through the control circuit board 8. It is possible.

[0035] Specifically, the wiring groove 316 can penetrate the inner surface of the hood body 31 and the outer surface of the housing 32. The grille 313 is a hollow structure, and the electronic components are arranged in the inner mounting groove 312 and the outer mounting groove 311. The wires are connected to the control circuit board 8 through the wiring grooves 316. A wire groove is provided at the bottom of the stopper between the side mounting groove 311.

[0036] Preferably, a guide structure 315 is provided between the outer surface of the housing 32 and the inner surface of the airflow passage 23, The guide structure 315 facilitates alignment of the through hole 27 and the wiring groove 316 when the air guide hood 3 is attached. The communicating portion between the through hole 27 and the wiring groove 316 is located within the guide structure 315.

[0037] Specifically, the guide structure 315 is a guide edge 3151 provided on the outer surface of the air guide hood 3. The guide edge 3151 extends in the longitudinal direction of the air guide hood 3 and is provided in parallel with the two That is, the wiring groove 316 is formed between two guide edges 3151. 315 has a guide groove 26 arranged in the air flow passage 23, and the width of the guide groove 26 is The two guide edges 3151 must be spaced apart so that they can slide securely into the guide grooves 26. In this way, the through hole 27 is provided at a position corresponding to the wiring groove 316 in the guide groove 26. The guide edge 3151 and the guide groove 26 allow the airflow in the airflow passage 23 to flow through the through hole 27. This can prevent the foreign object from entering the hand-held portion 1.

[0038] Preferably, the handle 1 is attached to an outer case that can be held by a user and an inner wall of the outer case. The inner case 11 has a two-layer shell formed of a metal plate 12 and an inner case 11 which is formed of a metal plate 13. A plurality of first locking blocks 12 are provided on the inner case 11 side close to the electric fan unit 2. 2, a plurality of first locking grooves 24 corresponding to the inner case 11 and the electric fan unit 2 are provided to connect the inner case 11 and the electric fan unit 2. .

[0039] In addition, a plurality of second locking blocks 25 are provided on the inner surface of the air outlet 21. A plurality of second locking grooves 317 corresponding to the locks 25 are provided on the outer surface of the air guide hood 3, The air guide hood 3 can be fitted to the electric fan unit 2. The space between the side surface and the inner side surface of the air outlet 21 is filled with foam, so that the air flow from the side surface of the air outlet 21 is prevented from rotating during the rotation of the electric fan assembly 4. The vibration noise generated by the air guide hood 3 and the electric fan unit 2 is reduced.

[0040] Preferably, a mounting seat 5 is further provided at the bottom of the handle 1, and the bottom of the mounting seat is provided in a sheet shape. The bottom of the handle 1 is inserted into the groove of the mounting seat. After the is inserted, the entire handheld fan 10 is placed upright.

[0041] The above is only used to illustrate the technical solution of this utility model, and is not intended to be limiting. Any other modifications or equivalent substitutions made by ordinary skilled in the art to the technical solution of this utility model. are all within the scope of the claims of this utility model, as long as they do not deviate from the spirit and scope of the technical solution of this utility model. is included in the enclosure.

Claims

1. The handheld fan is arranged in a curved tubular shape, and the curved portion transitions into an arc shape. Characterized by: The handheld fan includes a fan section and a handheld section, and the fan section is used for blowing air, and the handheld fan section is used for blowing air. a handle portion having a side surface at one end connected to a side surface at one end of the handle portion to form a smooth transition; Equipped with The electric fan unit or the hand-held unit has a structure for preventing the air flow in the electric fan unit from entering the hand-held unit. A wind shield is provided to block the wind.

2. The curved portion is provided on the electric fan portion and is provided adjacent to the hand-held portion, The windshield plate is provided at the curved portion. Regarding the handheld fan described in claim 1.

3. The fan part having the curved portion forms an elbow structure, and the hand-held part has a straight pipe structure. 、 Regarding the handheld fan described in claim 2.

4. The elbow structure has a bending angle of 90° to 120°, and the electric fan part is connected to the hand-held part. The connector is characterized in that it is provided in an inverted L shape after being connected. Regarding the handheld fan described in claim 3.

5. The electric fan unit has an air inlet and an air outlet, and an airflow passage is provided between the air inlet and the air outlet. An airflow is drawn into the airflow passage from the air inlet and blown out from the air outlet. a fan assembly for blowing air, Regarding the handheld fan described in claim 1.

6. The electric fan assembly is attached to a hood on a side of the airflow passage close to the air outlet. A wind guide hood having a main body and a housing attached to the inner surface of the air flow passage is further provided. Characterized in that Between the inner surface of the housing and the outer surface of the hood, there is an airflow control port that allows the airflow from the air outlet to pass through. is formed, Regarding the handheld fan described in claim 5.

7. In the hand-held fan according to claim 6, the inner surface of the housing and the outer surface of the hood body are The airflow control port is connected to the side by a plurality of grilles. The grille is The airflow comb port is divided into multiple portions.

8. A control circuit board and a battery fitted to the control circuit board are provided inside the handle. The present invention is characterized in that The air guide hood has a wiring groove, and the air guide hood and the attachment part are connected to the air flow passage. A through hole is provided corresponding to the wiring groove, and the wiring groove is formed in the through hole. The fan assembly fits into the hole and is coupled to the control circuit board via wiring. Regarding the handheld fan described in claim 7.

9. The wiring groove is a hollow structure on one side of the grille, and both ends of the hollow structure are connected to the hood. penetrating the inner surface of the body and the outer surface of the housing; Regarding the handheld fan described in claim 8.

10. A guide structure is provided between the outer surface of the case and the inner surface of the air flow passage, and the through hole and the front a communicating portion with the wiring groove is located within the guide structure, Regarding the handheld fan described in claim 9.

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