JP3227395U - Fan head and fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fan head which is easily stored and can be used in a short time. A fan head 1123 includes a fixed base 1125 and at least two blades 1126, and one of the fixed base 1125 and the blades 1126 is attached with a coupling shaft 11261, and the other one is a shaft. A hole is formed, and the fixed base 1125 and the blade 1126 are rotatably connected by a coupling shaft 11261 and a shaft hole. When the motor operates, the vanes 1126 rotate due to the driving of the motor, and the vanes 1126 spread due to the centrifugal force of rotation. When the motor does not rotate, an included angle is formed between the orientation of the vanes 1126 and the plane in which the fixed base 1125 is located. [Selection diagram] Figure 2C

Description

The present invention relates to the technical field of electric fans, and more particularly to an electric fan head and an electric fan.

Small fans have the advantage of good portability, and are attracting the attention of users.

The blades of many commercially available small fans are all made of flexible material. Its purpose is to prevent the blade from being damaged as it rotates, causing injury to the user or collision with an external object. However, it can take a lot of time to fully unfold a vane made of a flexible material, as the vane bends in contact with an external object when stored. Therefore, the user cannot use the small fan within a short time, and the experience of the user may be deteriorated.

Therefore, it is an important issue to avoid the bad storage of the small electric fan and the influence on the use.

In order to solve the above technical problems, the present invention provides the following fan head and fan.

In order to solve the conventional technical problems, the present invention provides a fan head. The fan head includes a fixed base and at least two blades, one of the fixed base and the blade has a coupling shaft attached thereto, and the other has a shaft hole formed therein. And the blade are rotatably connected by the coupling shaft and the shaft hole. When the motor operates, the blade is rotated by the drive of the motor, the blade is expanded by the centrifugal force of rotation, and when the motor is not rotated, between the direction of the blade and the plane where the fixed base is located. An included angle is formed at.

Preferably, the fixed base includes an upper cover and a lower cover that are detachably coupled to each other, a first axial hole structure is formed on the upper cover, and the first axial hole structure includes the upper cover and the lower cover. It is composed of two projecting plates which are formed by projecting one side and are separated from each other. A second axial hole structure is formed on an end surface of the lower cover, and a coupling groove is formed on the second axial hole structure. .. When the upper cover and the lower cover are combined, the axial hole is formed by the first axial hole structure and the second axial hole structure, and the protruding plate that is close to the center of the upper cover is combined in the coupling groove.

Preferably, the coupling shaft is mounted on the blade, the fixed base is formed with a shaft hole, the notch is formed on the shaft hole, and the coupling shaft is connected to the shaft hole by the notch. Rotating relative to the shaft hole and connecting the fixed base and the blade, or the connecting shaft is mounted on the fixed base, the shaft hole is formed in the blade, and the cutout is formed on the shaft hole. The size of the cutout is smaller than the size of the coupling shaft, and the coupling shaft is coupled to the shaft hole by the notch to rotate relative to the shaft hole and couple the fixed base and the blade.

Preferably, the number of the blades is 2 to 7, and an angle of 30° to 90° is formed between the direction of the blades and the plane where the fixed base is located.

To solve the conventional technical problems, the present invention provides a fan. The fan includes a main body, the main body includes a main body and a blower, the main body is connected to the blower, and the blower includes a motor and a fan head. The fan head includes a fixed base and at least two blades, one of the fixed base and the blade has a coupling shaft attached thereto, and the other has a shaft hole formed therein. The blade and the blade are rotatably connected by the connecting shaft and the shaft hole, and the motor is fixedly connected to a fixed base. When the motor operates, the blade is rotated by the drive of the motor, the blade is expanded by the centrifugal force of rotation, and when the motor is not rotated, between the direction of the blade and the plane where the fixed base is located. An included angle is formed at.

Preferably, the coupling shaft is mounted on the blade, the fixed base is formed with a shaft hole, the notch is formed on the shaft hole, and the coupling shaft is connected to the shaft hole by the notch. Rotating relative to the shaft hole and connecting the fixed base and the blade, or the connecting shaft is mounted on the fixed base, the shaft hole is formed in the blade, and the cutout is formed on the shaft hole. The size of the cutout is smaller than the size of the coupling shaft, and the coupling shaft is coupled to the shaft hole by the notch to rotate relative to the shaft hole and couple the fixed base and the blade.

Preferably, the number of the blades is 2 to 7, and an angle of 30° to 90° is formed between the direction of the blades and the plane where the fixed base is located.

Preferably, the fan further includes a cover, the cover is detachably connected to one end of a main body, the main body further includes an elastic portion, and the main body portion is connected to the blower portion by the elastic portion. When the cover is connected to the main body, the air blower is located inside the cover and the elastic portion is compressed, and when the cover is separated from the main body, the force for compressing the elastic portion is lost, and the elastic portion is in the original state. Due to the resilience, the blower unit rotates until it forms a certain angle with the main body.

Preferably, the main body unit includes a main body case, a power supply module, and an adjustment switch, the power supply module is electrically connected to the blower unit and the adjustment switch, the power supply module is mounted in the main body case, and the adjustment switch is the main body. Exposed from the surface of the case and sliding relative to the body case, the adjustment switch adjusts the power of the power supply module to supply electricity to the blower unit.

Preferably, when the cover and the main body are connected to each other, the cover abuts in a sliding direction of the adjustment switch, a protrusion is formed at one end of the adjustment switch near the cover, and the cover is provided on the main body case. A cutout is formed that is fixedly coupled with the cutout. When the cover and the main body are connected, the protrusion is inserted into the cutout and abuts on the cover fixed in the cutout so that the switch is turned off.

Preferably, an opening is further formed on the body case, the adjustment switch slides in the direction of the opening, the protrusion is inserted into the cutout through the opening, and the length of the protrusion is the adjustment switch. Is larger than the sliding distance within the opening.

Preferably, the power supply module further includes a circuit board, a cell, an input port and an output port, the circuit board is electrically connected to the regulating switch, the cell, the input port, the output port and the blower, respectively, the cell is electrically connected. A part of the input port is exposed from the surface of the body case, the input port is electrically connected to an external power source to charge the cell, and a part of the output port is exposed from the surface of the body case. Then, by electrically connecting the output port to an external electronic device, the electronic device is charged.

Preferably, the power supply module further includes a pilot lamp, the pilot lamp is attached to the main body case and is exposed from a surface of the main body case, the pilot lamp is electrically connected to a circuit board, and the pilot lamp is connected to the power supply module. A charging/discharging state is displayed, and an insertion groove is formed at the other end of the main body case. By inserting the cover into the insertion groove, the cover is coupled and connected to the insertion groove and the size of the main body is increased.

Compared with the conventional technique, the fan head and the fan of the present invention can achieve the following effects of the invention.
1. The fixed base and the blade are connected by the connecting shaft, and the blade is contracted and housed in the direction of the connecting axis when the frictional force of the connection between the fixed base and the blade is greater than or equal to the gravity of the blade. At this time, it is possible to prevent the blade from freely expanding due to the gravity of the blade. Further, the centrifugal force generated when the blades are rotated by driving the motor can spread the blades and form the wind, so that the fan head can be effectively housed and the effect of air blowing of the housed fan is affected. It is possible to prevent giving.

2. Since the shaft hole is formed by connecting the upper cover and the lower cover, it is possible to easily attach and detach the connecting shaft.

3. The connecting shaft is mounted on the upper cover or the lower cover, the shaft hole is formed on the blade, and the connecting shaft is connected in the shaft hole. Since the size of the cutout is smaller than the size of the coupling shaft, it prevents the coupling shaft, which is coupled in the shaft hole by the notch, from coming off easily from the notch, and stabilizes the connection between the blade and the fixed base. Can be improved.

4. A coupling shaft is attached to one of the fixed base and the blade, a shaft hole is formed in the other one, and a cutout is formed on the shaft hole. When the connecting shaft is connected to the shaft hole by the cutout, the size of the cutout is smaller than the size of the connecting shaft, so that the connecting shaft connected to the shafthole by the cutout easily separates from the cutout. Can be prevented, and the stability with which the blade and the fixed base are connected can be improved.

5. Since the fan head includes two to seven blades, the number of blades is small, so that the speed of air blowing is reduced and the user's experience is not reduced. When the air volume is the same, more flexible wind can be formed by the fan head to which more blades are attached, and noise of the fan head can be reduced. If the blast noise is similar, the fan head can be attached with more blades to increase the blast volume.

6. Since the elastic part is attached, when the cover is removed, the blowing part can rotate to a position where a constant included angle is formed with the main body part by the elastic force of the elastic part. Therefore, when the user grips the main body, the blower can be rotated without turning the arm so that the blower faces the user, and the experience of use can be improved.

7. The power supply module further includes an output port. By providing the output port, the fan can be used as an emergency battery of an electronic device. When there is no electricity and an emergency battery around the user, it is possible to charge the electronic device by electrically connecting the output port to an external electronic device and solve the technical problem that the electronic device cannot be charged freely. it can.

8. By installing the pilot lamp, it is possible to present the user with a good understanding of the operating state of the power supply module.

9. The size of the main body case can be increased by forming the insertion groove. If the user cannot easily grip the main body case due to the small size of the main body case, the cover can increase the size of the main body case to facilitate the gripping by the user. Also, the probability that the cover will be lost can be reduced by inserting the removed cover into the insertion groove.

1 is a perspective view showing a fan according to the present invention. It is a disassembled structural diagram which shows the electric fan shown by FIG. 1A. 1 is a perspective view showing a main body of an electric fan of the present invention. 1 is a structural view showing a cross section of a part of a main body of an electric fan of the present invention. FIG. 3 is an exploded view showing an air blower of the fan of the present invention. 1 is a perspective view showing a fan head of a fan according to the present invention. FIG. 3 is an exploded structural view showing a fan head of the fan of the present invention. FIG. 7 is an exploded structural view showing a first modified example of the fan head of the present invention. FIG. 7 is an exploded structural view showing a second modified example of the fan head of the present invention. FIG. 3 is an exploded structural view showing a main body of the fan of the present invention. FIG. 3 is an exploded structural view showing a blower part, an elastic part and a cover of the fan of the present invention. It is a figure which shows observing FIG. 4A in another angle. FIG. 3 is a structural view showing another cross section of a part of the main body of the fan of the present invention. 1 is a perspective view showing a cover and an adjustment switch of a fan according to the present invention. 1 is a structural view showing a cross section of a part of an electric fan of the present invention.

The present invention will be described in more detail with reference to the drawings and embodiments in order to explain the objects, technical matters and effects of the invention in more detail. It should be noted that the following specific examples are for the purpose of illustrating the present invention, but not for limiting the present invention.

Referring to FIGS. 1A and 1B, a fan 10 according to a first embodiment of the present invention includes a body 11 and a cover 12. One end of the main body 11 is detachably connected to the cover 12, and after the cover 12 is separated from the main body 11, the wind formed by the main body 11 can be supplied to the user.

Referring to FIGS. 1C and 1D together, the main body 11 includes a main body portion 111 and a blower portion 112. The main body 111 is connected to the blower 112. The main body 111 is fixed so that the blower 112 does not move relative to the main body, and controls the blowing speed of the blower 112. The blower 112 forms wind and supplies it to the user, and the main body 111 is detachably connected to the cover 12.

In the present invention, the body 11 further includes an elastic portion 113. The body portion 111 is connected to the blower portion 112 by the elastic portion 113. When the air blower 112 is coupled to the main body 11, the air blower 112 is located inside the cover 12, and the elastic portion 113 is compressed by the pressure of the main body 111 and the cover 12. When the air blower 112 is separated from the main body 11, the elastic portion 113 is restored to its original state, and the elasticity of the elastic portion 113 allows the air blower 112 to rotate to a certain angle so as to incline at a certain angle. At that time, since a constant angle is formed between the blower unit 112 and the main body unit 111, the blower unit 112 faces the user without the user twisting his/her arm when gripping the main body unit 111. You can In this embodiment, the elastic portion 113 is a spring, and one end of the spring can abut the main body portion 111 and the other end can abut the blower portion 112.

In another embodiment of the present invention, the main body 111 and the air blower 112 are fixedly connected, and the user can grip the fan by holding the main body 111 after removing the cover 12 from the main body 111.

Referring to FIG. 1D together, a stop portion 11134 is formed on the main body 111, and the stop portion 11134 is formed on the elastically deformed line of the elastic portion 113. When the fan rotates to a certain angle, the blower 112 can be stopped by the stop portion 11134. Accordingly, it is possible to prevent the elastic portion 113 from excessively rotating and the elasticity of the elastic portion 113 from being lost due to the pressure of the blower portion 112. The specific height of the stop portion 11134 can be appropriately set according to the actual demand and the angle of rotation. In this embodiment, by forming a chamfer at one end of the blower unit 112 that is close to the main body unit 111, the blower unit 112 contacts the main body unit 111 when the blower unit 112 is rotated by the elastic force of the elastic unit 113. As a result, it is possible to prevent the normal rotation of the blower unit 112 from being disturbed.

The angle of rotation of the blower unit 112 due to the elastic force of the elastic unit 113 is determined by the elastic range of the elastic unit 113 and the stop unit 11134. In the present embodiment, when the air blower 112 is rotated to the angle A by the elasticity of the elastic portion 113, the blower 112 can be stopped by the stop portion 11134. The angle A is between 30° and 90° and can in particular be 30°, 45°, 60° or 90°.

Referring to FIG. 2A, the blower unit 112 includes a motor 1121, a case 1122, and a fan head 1123. The motor 1121 is mounted in the case 1122. The motor 1121 includes an output 1124. The output end 1124 projects from the case 1122 to the outside and is fixedly connected to the fan head 1123. When the motor 1121 operates, the driving of the output end 1124 causes the fan head 1123 to rotate.

Referring to FIG. 2A, the fan head 1123 includes a fixed base 1125 and at least two vanes 1126. The blade 1126 is fixedly connected to the fixed base 1125, and the fixed base 1125 is fixedly connected to the output end 1124. When the motor 1121 does not operate, the blade 1126 is in a natural hanging state, and when the motor 1121 operates, the driving of the output end 1124 causes the blade 1126 to rotate, and the blade 1126 expands due to the centrifugal force of rotation. The vanes 1126 can expand until the projected area on the plane of rotation is maximized. In this embodiment, each fan head 1123 may include two to seven blades 1126. In the case of the fan head 1123 to which two or three blades 1126 are attached, the number of blades 1126 is small, so that the speed of air blowing is not reduced and the user's experience is not deteriorated. When the air volume is the same, more flexible wind can be formed by the fan head 1123 to which more blades 1126 are attached, and noise of the fan head 1123 can be reduced. When the noise of the blast is similar, the amount of blast can be increased by the fan head 1123 to which more blades 1126 are attached.

In the present embodiment, the blower unit 112 has a bladeless fan (not shown) (also referred to as a bladeless fan as an air multiplier). The bladeless fan can form natural wind without depending on the blades. The principle of the bladeless fan is as follows: A 40 watt motor attached to the bladeless fan sends 33 liters of air per second into the base, and the air is accelerated by the accelerator. The flow velocity of the air can be increased or decreased by up to 16 times.When the air surrounds the annular passage of the fanless fan head, the air around the fan head is moved by the acting force of the surroundings. The air can be delivered to the outside at high speed after inhalation). Since it is not necessary to provide the air blower 112 with blades, it is possible to prevent dust from falling and injuring a user. However, the present invention is not limited to this, and may have any structure as long as the air can be formed by the blower unit 112.

Referring to FIGS. 2B and 2C, the fixed base 1125 includes an upper cover 11251 and a lower cover 11252 that are detachably coupled. The vane 1126 includes a coupling shaft 11261. When the upper cover 11251 and the lower cover 11252 are combined, a shaft hole is formed between them, and the connecting shaft 11261 is housed in the shaft hole and rotates relative to the shaft hole to fix the fixed base 1125 and the blade 1126. Combine. Specifically, the upper cover 11251 includes a first axial hole structure 11254 having an opening formed therein. The first axial hole structure 11254 is composed of two projecting plates that are formed at intervals, and the first axial hole structure 11254 is formed by projecting one side of the upper cover 11251 and the lower cover 11252. A second axial hole structure 11256 is formed on the lower cover 11252. The second shaft hole structure 11256 projects from the end surface of the lower cover 11252, and a coupling groove 11257 is formed in the center of the second shaft hole structure 11256. When the upper cover 11251 and the lower cover 11252 are combined, the shaft hole is formed by the first shaft hole structure 11254 and the second shaft hole structure 11256. At that time, the projecting plate of the first axial hole structure 11254, which is close to the center of the upper cover 11251, is coupled into the coupling groove 11257. The formation positions of the first axial hole structure 11254 and the second axial hole structure 11256 can be exchanged.

Referring together to FIG. 2C, the vane 1126 includes a vane portion 11262 and a joining portion 11263. The coupling shaft 11261 is mounted on the coupling part 11263. The coupling part 11263 further includes a coupling hole 11264. The coupling hole 11264 is formed between the blade portion 11262 and the coupling shaft 11261. When the vane 1126 is rotatably coupled within the axial bore, portions of the first axial bore structure 11254 and the second axial bore structure 11256 are inserted into the coupling bore 11264. Specifically, one protruding plate distant from the center of the first axial hole structure 11254 is inserted into the coupling hole 11264.

In this embodiment, when the operation of the motor 1121 is stopped, an angle of 30° to 90° is formed between the plane on which the fixed base 1125 is located and the direction of the blade 1126. Since the combined frictional force between the fixed base 1125 and the blade 1126 is greater than or equal to the gravity of the blade 1126, when the blade 1126 is retracted and housed in the direction of the coupling axis 11261, the gravity of the blade 1126 causes the blade 1126 to contract. Can be prevented from spreading freely. The frictional force between the blade 1126 and the fixed base 1125 is smaller than the centrifugal force generated when the blade 1126 is rotated by driving the motor 1121. Therefore, when the motor 1121 operates, the rotating blade 1126 can be rotated and spread by the centrifugal force. In the present embodiment, the inside of the first shaft hole structure 11254 and the second shaft hole structure 11256 are formed in an arc structure, so that when the blade 1126 is rotated by the drive of the motor 1121, the coupling shaft 11261 becomes a shaft hole. The blades 1126 can rapidly rotate relative to each other and the vanes 1126 can quickly expand until the projected area on the plane of rotation is maximized.

Referring to FIG. 2D, there is shown a fan head 2123 that is a first modified embodiment of the fan head 1123 of the present invention. The fan head 2123 includes a fixed base 2125 and vanes 2126. The fixed base 2125 includes an upper cover 21251 and a lower cover 21252 that are detachably coupled. A coupling shaft 21261 is formed on the upper cover 21251, and the blade 2126 includes a shaft hole 21253. A cutout 21257 is formed on the shaft hole 21253, and the fixed base 2125 and the blade 2126 can be connected by connecting the connecting shaft 21261 to the cutout 21257 of the shaft hole 21253. In this embodiment, since the size of the opening of the cutout 21257 is smaller than the size of the coupling shaft 21261, the coupling shaft 21261 coupled in the shaft hole 21253 cannot be easily separated from the notch 21257.

It should be noted that the connecting shaft 21261 can be provided on the lower cover 21252, and any structure can be used as long as the connecting shaft 21261 and the shaft hole 21253 can be connected.

Referring to FIG. 2E, there is shown a fan head 3123 which is a second modified embodiment of the fan head 1123 of the present invention. The fan head 3123 includes a fixed base 3125 and vanes 3126. A coupling shaft 31261 is formed on the blade 3126, a shaft hole 31253 is formed on the fixed base 3125, a cutout 31257 is formed on the shaft hole 31253, and the coupling shaft 31261 is formed by the cutout 31257. The fixed base 3125 and the vane 3126 are coupled by being inserted into the shaft hole 31253 and rotating relative to the shaft hole 31253. Since the size of the opening of the cutout 31257 is smaller than the size of the coupling shaft 31261, the coupling shaft 31261 coupled in the shaft hole 31253 cannot be easily separated from the notch 31257.

It should be noted that the connecting shaft 31261 may be provided on the fixed base 3125 and the shaft hole 31253 may be provided on the vane 3126, and any structure that connects the connecting shaft 31261 and the shaft hole 31253 may be used.

Referring to FIG. 3, the main body 111 includes a main body case 1111, a power supply module 1112, and an adjustment switch 1115. The power supply module 1112 is mounted in the main body case 1111. Specifically, the main body case 1111 includes a main body cover 1113 and a cylindrical body 1114. The body cover 1113 and the cylindrical body 1114 are fixedly connected. A storage space is formed between the main body cover 1113 and the cylindrical body 1114, and the power supply module 1112 is stored in the storage space. The adjustment switch 1115 is installed between the power supply module 1112 and the blower unit 112, and is electrically connected to the power supply module 1112 to adjust the power of the power supply module 1112 to supply electricity to the blower unit 112.

Referring to FIG. 3, the power supply module 1112 further includes a circuit board 1116, a cell 1117, an input port 1118 and an output port 1119. The circuit board 1116 is electrically connected to the cell 1117, the input port 1118 and the output port 1119, respectively. By electrically connecting the circuit board 1116 to the motor 1121 of the air blower 112, the air blow speed of the air blower 112 can be adjusted. The cell 1117 supplies electricity. A portion of the input port 1118 is exposed from the surface of the cylinder 1114, the exposed portion is electrically connected to an external power source to charge the cell 1117, and a portion of the output port 1119 is exposed from the surface of the cylinder 1114. The electronic device can be charged by electrically connecting the exposed portion to an external electronic device.

The adjustment switch 1115 is electrically connected to the circuit board 1116, and the adjustment switch 1115 is exposed from the surface of the cylindrical body 1114. The air blowing speed of the air blowing unit 112 of the present invention means the rotation speed of the motor 1121. When the rotation speed of the motor 1121 increases, the air blowing speed increases, and when the rotation speed of the motor 1121 decreases, the air blowing speed also decreases. The fan 10 of the present invention has a good blowing performance, and the fan 10 can be used as an emergency battery for electronic devices. By using the fan 10 as a portable battery, the functions of the fan 10 can be enriched.

In this example, the power supply module 1112 further includes a pilot lamp 1120. The pilot lamp 1120 is electrically connected to the circuit board 1116. Pilot lamp 1120 is attached to main body case 1111 and is exposed from the surface of main body case 1111. The pilot lamp 1120 displays the charging/discharging state of the power supply module 1112. The user can know the operating state of the cell 1117 by the pilot lamp 1120.

It should be noted that the power supply module 1112 may be configured to be electrically connected to DC electricity or AC electricity. In another embodiment, the power module 1112 may further include an energy storage device such as a dry cell.

Referring to FIG. 3, one end of the main body case 1111 is detachably connected to the cover 12, and an insertion groove 11141 is formed at the other end of the main body case 1111. By inserting the cover 12 into the insertion groove 11141, the cover 12 can be coupled and connected to the insertion groove 11141 and the size of the main body case 1111 can be increased. When the user cannot easily grip the main body case 1111 due to its small size, the user can easily grip the main body case 1111 by increasing the size of the main body case 1111 with the cover 12. Further, by inserting the removed cover 12 into the insertion groove 11141, the probability that the cover 12 is lost can be reduced, and the integrity of the fan 10 can be ensured.

Referring to FIGS. 4A, 4B, and 4C, a first storage groove 1127 is formed at one end of the case 1122, a second storage groove 11131 is formed on the main body cover 1113, and one end of the elastic portion 113 is formed as a first storage groove. It is housed in one housing groove 1127, and the other end of the elastic portion 113 is housed in the second housing groove 11131.

In this embodiment, a first positioning portion 1128 is formed on one side of the case 1122 of the first storage groove 1127, a second positioning portion 11132 is formed inside the second storage groove 11131, and a first positioning portion 1128. By connecting the second positioning portion 11132 and the second positioning portion 11132, it is possible to prevent the blower portion 112 from coming off the main body portion 111. Specifically, the first positioning part 1128 and the second positioning part 11132 are coupled by the shaft hole to form a coupling connection, and it is possible to prevent the blower part 112 from being separated from the main body part 111. The elastic portion 113 can be elastically deformed and rotated about the axis by the connection by the shaft hole. Specifically, the first positioning part 1128 is a shaft and the second positioning part 11132 is a hole, but the present invention is not limited thereto. For example, the first positioning portion 1128 can be a hole and the second positioning portion 11132 can be a shaft. Any structure may be used as long as it can prevent the blower unit 112 from being separated from the main body unit 111 by coupling the first positioning unit 1128 and the second positioning unit 11132.

In the present invention, the position of the blower unit 112 and the main body unit 111 is restricted by the connection of the shaft and the hole by the first positioning unit 1128 and the second positioning unit 11132, and when the elastic unit 113 rotates the blower unit 112, the blower unit. It is possible to prevent the 112 from coming off the main body 111. In this embodiment, the stop portion 11134 is formed in the opening of the second storage groove 11131 of the main body cover 1113 and is located on the line of elastic deformation.

With reference to FIGS. 1C, 5A and 5B, the adjustment switch 1115 is a sliding switch and can slide toward or away from the cover 12. When the adjusting switch 1115 slides toward the cover 12, the air blowing speed of the air blowing unit 112 increases and can reach the maximum air blowing speed. When the adjusting switch 1115 slides away from the cover 12, the air blowing speed of the air blowing unit 112 decreases, and the air blowing speed can be reduced to zero. That is, the power outage can occur. In this embodiment, the specific sliding direction of the adjustment switch 1115 is not limited. When the adjustment switch 1115 slides toward the cover 12, the air blowing speed of the air blower 112 increases, and when the adjustment switch 1115 slides away from the cover 12, the air blown speed of the air blower 112 decreases. Both are good.

Referring to FIGS. 5A and 5B, a protrusion 11151 is formed at one end of the adjustment switch 1115 that is close to the cover 12, and a cutout 11133 that is fixedly coupled to the cover 12 is formed on the main body case 1111. .. Specifically, the cutout 11133 is formed on the body cover 1113. The opening direction of the cutout 11133 faces the projection 11151, and when the adjustment switch 1115 slides toward the cover 12, the projection 11151 moves to the bottom of the cutout 11133. In the present invention, when the cover 12 and the main body 11 are connected, the cover 12 and the main body cover 1113 are connected to each other, so that the cover 12 is connected to the main body 11. By contacting the projection 11151 with the cover 12 fixed in the cutout 11133, the projection 11151 can be prevented from further moving to the bottom of the cutout 11133. In this embodiment, an opening 11142 is further formed in the cylindrical body 1114, and the adjustment switch 1115 can move toward the opening 11142. When the protrusion 11151 is fed into the cutout 11133, the length L of the protrusion 11151 is larger than the distance d by which the adjustment switch 1115 slides in the opening 11142.

In the present embodiment, when the adjustment switch 1115 moves toward the cover 12, the protrusion 11151 also moves together toward the cover 12, and when the adjustment switch 1115 moves away from the cover 12, the protrusion occurs. 11151 also moves in a direction away from the cover 12. Before the cover 12 and the main body 11 are connected to each other, the adjustment switch 1115 is slid in a direction away from the cover 12 and the blower unit 112 is prevented in order to prevent the blower unit 112 from excessively rotating to interfere with the use of the user. To zero. When the cover 12 and the main body 11 are connected, the cover 12 is detachably connected to the main body 11. At this time, the cutout 11133 is blocked by a part of the peripheral portion of the cover 12, and the protrusion 11151 cannot move further to the bottom of the cutout 11133 when the cover 12 and the main body 11 are not separated. That is, when the entire air blower 112 is located inside the cover 12, the adjustment switch 1115 cannot increase the air blow speed of the air blower 112, and the motor 1121 cannot drive the rotation of the fan head 1123. The fan head 1123 is prevented from rotating in the cover 12, the motor 1121 is prevented from being burned due to the motor 1121 operating for a long time in the braking state, and the blower 112 is prevented from being damaged, and the fan 10 The service life can be increased. The cover 12 and the main body 11 can be connected even when the user does not use the fan 10. At this time, by moving the cover 12, the blower 112 and the main body 111 can be positioned on the same straight line, and the cover 12 can be coupled to the main body 111. When the cover 12 is connected to the main body 111, the cutout 11133 is blocked by a part of the peripheral portion of the cover 12, sliding the adjustment switch 1115 away from the cover 12 and moving the motor 1121 to a position where it is not controlled. In that case, the power can be further turned off by connecting the cover 12.

Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the configuration of the above embodiments since the above embodiments are merely examples of the present invention. It is needless to say that the design can be changed without departing from the gist of the present invention and even if they are changed, they are included in the present invention.

10 Fan 11 Main Body 12 Cover 111 Main Body Part 112 Blower Part 113 Elastic Part 1121 Motor 1122 Case 1123 Fan Head 1124 Output End 1125 Fixed Base 1126 Blade 1111 Main Body Case 1112 Power Supply Module 1113 Main Body Cover 1114 Cylindrical Body 1115 Circuit Board Switch 1116 Cell 1118 Input port 1119 Output port 1120 Pilot lamp 11141 Insertion groove 1127 First storage groove 11131 Second storage groove 1128 First positioning portion 11132 Second positioning portion 11151 Projection portion 11133 Notch opening 11134 Stopping portion 11142 Opening 11251 Upper cover 11252 Lower Cover 11261 Coupling shaft 11254 First shaft hole structure 11256 Second shaft hole structure 11257 Coupling groove 2123 Fan head 2125 Fixed base 2126 Blades 21251 Upper cover 21252 Lower cover 21261 Coupling shaft 21253 Shaft hole 21257 Notch port 3132 Fan head 3125 Fixed base 3126 Blades 31261 Coupling shaft 31253 Shaft hole 31257 Notch

Claims (13)

A fan head that is connected to a motor and that is rotated by the drive of the motor to form wind, the fan head including a fixed base and at least two blades, and one of the fixed base and the blade. One of which has a coupling shaft attached thereto, the other of which has a shaft hole formed therein, and the fixed base and the vane are rotatably connected by the coupling shaft and the shaft hole, and when the motor operates. , The blade rotates by the drive of the motor, the blade expands by the centrifugal force of rotation, and when the motor does not rotate, an included angle is formed between the direction of the blade and the plane where the fixed base is located. A fan head that is characterized by being. The fixed base includes an upper cover and a lower cover that are detachably coupled to each other, and a first axial hole structure is formed on the upper cover, and the first axial hole structure has one side of the upper cover and the lower cover protruding. The lower cover has a second axial hole structure formed on the end surface thereof, and the second axial hole structure has a coupling groove formed thereon. When connecting the lower cover, the shaft hole is formed by the first shaft hole structure and the second shaft hole structure, and the protruding plate approaching the center of the upper cover is connected in the connecting groove. The fan head according to claim 1. The coupling shaft is mounted on the blade, a shaft hole is formed in the fixed base, a cutout is formed in the shaft hole, and the coupling shaft is connected to the shaft hole by the cutout to form the shaft hole. Rotate relative to each other and join the fixed base and vane, or
The coupling shaft is mounted on a fixed base, a shaft hole is formed in the blade, a cutout is formed on the shaft hole, and the size of the cutout is smaller than the size of the connection shaft. The fan head according to claim 1, wherein the fan head is rotated relative to the shaft hole by being connected to the shaft hole by the notch and connects the fixed base and the blade. The number of the blades is 2 to 7, and an angle of 30° to 90° is formed between a direction of the blades and a plane on which the fixed base is located. The fan head according to 1. A fan, wherein the fan includes a main body, the main body includes a main body portion and a blower portion, the main body portion is connected to a blower portion, the blower portion includes a motor and a fan head, the fan head is A fixed base and at least two blades, wherein one of the fixed base and the blade has a coupling shaft attached thereto, and the other one has a shaft hole formed therein, Is rotatably connected to the coupling shaft and the shaft hole, the motor is fixedly connected to a fixed base, and when the motor operates, the blades are rotated by the drive of the motor and the blades are spread by the centrifugal force of rotation. An electric fan, wherein when the motor does not rotate, an included angle is formed between a direction in which the blades face and a plane on which the fixed base is located. The coupling shaft is mounted on the blade, a shaft hole is formed in the fixed base, a cutout is formed in the shaft hole, and the coupling shaft is connected to the shaft hole by the cutout to form the shaft hole. Rotate relative to each other and join the fixed base and vane, or
The coupling shaft is mounted on a fixed base, a shaft hole is formed in the blade, a cutout is formed on the shaft hole, and the size of the cutout is smaller than the size of the connection shaft. The fan according to claim 5, wherein the fan is rotated relative to the shaft hole and is connected to the fixed base and the blade by being connected to the shaft hole by the notch. The number of the blades is 2 to 7, and an angle of 30° to 90° is formed between a direction of the blades and a plane on which the fixed base is located. The fan according to 5. The fan further includes a cover, the cover is detachably connected to one end of a main body, the main body further includes an elastic portion, the main body portion is connected to the blower portion by the elastic portion, and the cover is coupled to the main body. When the air blower is located inside the cover and the elastic portion is compressed, the force for compressing the elastic portion disappears when the cover is separated from the main body, and the elastic portion restores the original state to the air blower. The fan according to claim 5, wherein the fan rotates to form a certain angle with the main body. The main body unit includes a main body case, a power supply module, and an adjustment switch, the power supply module is electrically connected to the blower unit and the adjustment switch, the power supply module is mounted in the main body case, and the adjustment switch is a surface of the main body case. 9. The electric fan according to claim 8, wherein the fan is exposed from the main body case and slides relative to the main body case, and the adjustment switch adjusts power of the power supply module to supply electricity to the blower unit. When the cover and the main body are connected, the cover abuts in the sliding direction of the adjustment switch, a protrusion is formed at one end of the cover close to the cover of the adjustment switch, and the cover is coupled and fixed on the main body case. When the cover and the main body are connected to each other, the protrusion is inserted into the cutout and abuts on the cover fixed in the cutout so that the switch is turned off. The fan according to claim 9, wherein An opening is further formed on the body case, the adjustment switch slides in the direction of the opening, the protrusion is inserted into the cutout through the opening, and the length of the protrusion is the opening of the adjustment switch. The electric fan according to claim 10, wherein the electric fan has a larger sliding distance. The power supply module further includes a circuit board, a cell, an input port and an output port, the circuit board is electrically connected to the regulating switch, the cell, the input port, the output port and the blower, respectively, and the cell supplies electricity. A part of the input port is exposed from the surface of the body case, the input port is electrically connected to an external power source to charge the cell, and a part of the output port is exposed from the surface of the body case; The electric fan according to claim 9, wherein the electronic device is charged by electrically connecting the output port to an external electronic device. The power module further includes a pilot lamp, the pilot lamp is attached to the main body case and is exposed from a surface of the main body case, the pilot lamp is electrically connected to a circuit board, and the pilot lamp is in a charging/discharging state of the power module. An insertion groove is formed at the other end of the main body case, and the cover is inserted into the insertion groove to couple the cover to the insertion groove and increase the size of the main body. The fan according to item 12.