Up and down oscillating desktop circulation fan

Abstract

We provide an up and down oscillating desktop circulation fan. The fan includes a base, a support seat, a motor case (300), a mesh cover, a fan motor (500), fan blades (600), and an oscillating drive means (700). The support seat is attached to the base and includes two upwardly extending support arms (210, 220), with the motor case rotatably connected between the two support arms. The fan motor is housed within the motor case, with its main shaft passing through the motor case and the fan blades attached to the main shaft. A mounting part (301) extends rearward on one side of the motor case. The oscillating drive means is connected to the mounting part and further to the support arm and is used to drive the motor case to oscillate up and down around the connected position. The motor case is housed within a mesh cover, with the motor case and mesh cover connected together, and the mesh cover oscillates up and down together with the motor case. The oscillating drive means of this up and down oscillating desktop circulation fan does not occupy the connection space between the motor case and the support arms, and the duct within the mesh cover is not affected by the oscillating drive means.

Description

[Technical Field]

[0001] The present invention belongs to the technical field of air circulation, and particularly relates to an up-and-down oscillating desktop circulation fan. [Background technology]

[0002] Air circulation fans are often used to circulate air indoors, making the air temperature distribution in the room uniform and also serving as a fan.

[0003] For example, Chinese Patent Application No. CN119435439A discloses a wireless induction-powered air circulation fan including a fan assembly, a base, a drive unit, and a power supply unit. The base includes a fixed base and a rotating base rotatably connected to the fixed base. The fan assembly is attached to the rotating base. The drive unit is located inside the base and is used to drive the rotating base to rotate along the end surface of the fixed base. The power supply unit is electrically connected to the fan assembly and used to supply starting power to the fan assembly, and includes an electromagnetic emission assembly and an electromagnetic reception assembly. The electromagnetic emission assembly is located within the fixed base and includes an excitation coil and an excitation control plate electrically connected to each other. The excitation control plate is connected to a power source to send current to the excitation coil and generate a magnetic field. The electromagnetic reception assembly and the electromagnetic emission assembly are correspondingly located within the rotating base and include the electromagnetic reception assembly, an induction coil for cutting magnetic field lines, and an induction control plate electrically connected to the induction coil. The induction control plate is electrically connected to the fan assembly and used to provide driving power. The drive unit drives the rotating base to rotate 360° along the surface of the fixed base without stopping and with no blind spots, and supplies power to the fan assembly using a wireless induction power supply method based on the principle of electromagnetic induction, allowing the drive fan to rotate without a power line.This means that the rotating base does not have to be prevented from rotating 360° due to interference from the power line during rotation, and achieves 360° rotation without stopping and with no blind spots. The fan assembly includes a housing and a fan unit. A mounting chamber is formed inside the housing, and air passage windows are opened on both sides of the housing. The fan unit is installed in the mounting chamber. A motor rotates the fan blades to drive a rapid airflow to blow air. The oscillating motor is power-transmittingly connected to the housing / support frame and causes the housing to oscillate back and forth around the axis of the rotating member. The rotating body may be a rotating shaft or a rotating flange, thereby realizing a rotatable connection between the housing and the support frame. The oscillating motor may be fixedly attached to the support frame or the housing, and its output shaft may be correspondingly connected to the housing or the support frame. Driving the oscillating motor allows the fan assembly to oscillate up and down.

[0004] In the technical solution of the above-mentioned patent document, a fan assembly is swung up and down by a swing motor to blow air. The swing motor and fan unit are attached between a housing and a support frame, and the swing motor is embedded in the housing. The fan unit is also directly installed inside the housing. An inner ring is installed between the fan unit and the inside of the housing, and the swing motor is installed within the space of the inner ring. As a result, the swing motor occupies a large space inside the housing, and the duct diameter of the fan unit is reduced. In order to satisfy the airflow volume of the fan unit (assuming the fan unit's air outlet diameter is the same), the volume of the housing must be increased, and the fan's outer shape becomes large, occupying space and increasing manufacturing costs. Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE INVENTION The purpose of this invention is to provide an up and down oscillating desktop air circulation fan to solve the problems of traditional desktop air circulation fans, which are large in volume, take up space, and have high manufacturing costs. [Means for solving the problem]

[0006] To achieve the above object, one embodiment of the present invention provides an up-and-down oscillating desktop circulation fan, which includes a base, a support seat, a motor case, a mesh cover, a fan motor, fan blades, and an oscillating drive means. The support seat is mounted on the base and includes two support arms extending upward, the support arms are provided with connecting positions, and the motor case is rotatably connected to the connecting positions of the two support arms. The fan motor is mounted within the motor case, and the fan motor's main shaft passes through the motor case. The fan blades are mounted on the fan motor's main shaft. A mounting part extends rearward on one side of the motor case. The oscillating drive means is fixedly connected to the mounting position and further connected to the support arm, and is used to drive the motor case to oscillate up and down around the connecting positions. The motor case is mounted within the mesh cover, and the motor case and the mesh cover are integrally connected, and the mesh cover oscillates up and down together with the motor case.

[0007] Furthermore, the swing drive means includes a drive motor, a gear, and a toothed plate, the drive motor is provided inside the mounting portion, the gear is provided on the main shaft of the drive motor, one end of the toothed plate is fixedly connected to the support arm, and the other end is provided with ring teeth, which mesh with the gear.

[0008] Furthermore, a first positioning portion is provided on the inside of the support arm, and a second positioning portion is provided on the end side of the tooth plate, the second positioning portion being engaged with and fixedly connected to the first positioning portion, and a positioning hole is provided in the motor case, and the positioning hole is rotatably fitted into the first positioning portion or the second positioning portion.

[0009] Furthermore, the first positioning portion includes a protrusion provided on the inside of the support arm, an adapter sleeve extending from one side of the tooth plate, three connecting pillars provided within the adapter sleeve, a second positioning portion formed between the three connecting pillars, a connecting hole provided in the connecting pillar, a locking screw passing through the support arm and connected to the connecting hole, and the positioning hole rotatably connected to the adapter sleeve.

[0010] Further, an attachment chamber is provided within the mesh cover, and the motor case is provided within the attachment chamber; Two support arms extend from the bottom of the mesh cover into the mounting chamber and are rotatably connected to the motor case.

[0011] Furthermore, an escape hole is provided in the front wall of the mounting chamber, a sleeve tube is provided at the front end of the motor case and passes through the escape hole, the sleeve tube is provided with an external thread, and a lock nut is connected to the external thread of the sleeve tube to fix the motor case within the mounting chamber, and the main shaft of the fan motor passes through the sleeve tube and protrudes from the mounting chamber.

[0012] Furthermore, the mesh cover includes an intermediate frame, a front mesh, a rear mesh case and a rear mesh lid, the mounting chamber is provided in the rear mesh case, the rear mesh lid covers the mouth of the mounting chamber, the intermediate frame is provided at the front end of the rear mesh case, a duct is formed in the inner ring of the intermediate frame, and the front mesh covers the mouth of the intermediate frame.

[0013] Furthermore, the mouth of the mounting chamber extends to the bottom of the rear mesh case, and the rear mesh cover is provided with a guide groove for accommodating the support arm.

[0014] Furthermore, the base is provided with an insertion groove, and the lower end of the support arm is inserted into the insertion groove.

[0015] Furthermore, a wiring groove is provided on the inside of the support arm, and a wiring hole is provided at the rotatable connection position between the support arm and the motor case, and electric wires enter from the bottom end of the support arm and protrude from the wiring hole to be connected to the swing drive means and the fan motor. [Effects of the Invention]

[0016] The above-mentioned one or more technical solutions of the up and down oscillating desktop circulation fan according to the embodiment of the present invention at least have the following technical effects: The fan motor is mounted within a motor case, which is directly rotatably attached between two support arms. The swing drive means is mounted on one side of a mounting portion extending rearward from the motor case and is connected to the support arms, allowing the motor case to swing up and down. The motor case is mounted within a mesh cover and is connected to the mesh cover. Therefore, the swing drive means does not occupy the connection space between the motor case and the support arms, and the duct within the mesh cover is not affected by the swing drive means. This eliminates the need to increase the volume of the mesh cover to ensure the fan duct size, reducing space occupancy and costs. [Brief explanation of the drawings]

[0017] In order to more clearly explain the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments or prior art. Obviously, the drawings in the following description are merely some embodiments of the present invention, and those skilled in the art can also derive other drawings based on these drawings without exerting any creative efforts. [Figure 1] 1 is a diagram illustrating the connection structure of an up-and-down oscillating desktop circulation fan according to an embodiment of the present invention; [Figure 2] 1 is a rear view of an up-and-down oscillating desktop circulation fan according to an embodiment of the present invention; [Figure 3] 1 is a cross-sectional view of an up-and-down oscillating desktop circulation fan according to an embodiment of the present invention. [Figure 4] 2 is a structural diagram showing the connection between the motor case and the support arm of a vertically oscillating desktop circulation fan according to an embodiment of the present invention; [Figure 5] 1 is a rear view of the motor case and support arm of a vertically oscillating desktop circulation fan according to an embodiment of the present invention; [Figure 6] 4 is a diagram showing the other side of the connection between the motor case and the support arm of the vertically oscillating desktop circulation fan according to the embodiment of the present invention; [Figure 7]1 is a front view of a vertically oscillating desktop circulation fan according to an embodiment of the present invention, showing the motor case and support arm connected together; [Figure 8] 8 is a cross-sectional view taken along the line AA in FIG. 7. [Figure 9] 1 is an exploded view of an up-and-down oscillating desktop circulation fan according to an embodiment of the present invention; [Figure 10] 1 is a structural diagram of the oscillation drive means of the vertical oscillation desktop circulation fan according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0018]

[0033] The following detailed description of the embodiments of the present invention is provided in the accompanying drawings, in which the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are illustrative and are intended to be used to interpret the embodiments of the present invention, but should not be understood as limitations on the present invention. In describing the embodiments of the present invention, it should be understood that the orientations or positional relationships indicated by terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are based on the orientations or positional relationships shown in the drawings, and are merely for the purpose of easily describing or simplifying the description of the embodiments of the present invention, and do not indicate or imply that the designated devices or elements necessarily have a specific orientation or must be constructed or operated in a specific orientation, and therefore should not be understood as limitations on the present invention.

[0019] It should be noted that the terms "first" and "second" are used solely for descriptive purposes and should not be understood as indicating or implying relative importance or the number of technical features referred to. Thus, a feature qualified as "first" or "second" may explicitly or implicitly include one or more of such features. In describing embodiments of the present invention, unless otherwise expressly and specifically limited, "plurality" means two or more. In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "attach," "couple," "connect," "fixed," etc. should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, an internal communication between two elements, or a mutually functional relationship between two elements. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present invention according to specific circumstances.

[0020] 1 to 10, one embodiment of the up-and-down oscillating desktop circulation fan of the present invention includes a base 100, a support seat, a motor case 300, a mesh cover 400, a fan motor 500, fan blades 600, and an oscillating drive means 700. The support seat is mounted on the base 100 and includes a first support arm 210 and a second support arm 220 extending upward. The first support arm 210 and the second support arm 220 are both provided with rotatable connection positions, and the motor case 300 is rotatably connected to the rotatable connection positions of the first support arm 210 and the second support arm 220. The fan motor 500 is mounted within the motor case 300, and a main shaft of the fan motor 500 passes through the motor case 300, and the fan blades 600 are mounted on the main shaft of the fan motor 500. An attachment portion 301 extends rearward from one side of the motor case 300, and a swing drive means 700 is fixedly connected to the attachment portion 301 and further connected to the first support arm 210. The swing drive means 700 is used to drive the motor case 300 to swing up and down around the rotatable connection positions of the first support arm 210 and the second support arm 220. Specifically, the swing drive means 700 uses the first support arm 210 as a fixed fulcrum, and under the driving force of the swing drive means 700, acts on the motor case 300 to rotate the motor case 300 around the fulcrum of the first support arm 210, thereby achieving up and down swing. The motor case 300 is disposed within a mesh cover 400, and the motor case 300 and the mesh cover 400 are integrally connected, and the mesh cover 400 swings up and down together with the motor case 300.

[0021] In the above embodiment, the fan motor 500 is mounted within the motor case 300, which is directly and rotatably attached between the first support arm 210 and the second support arm 220. The swing drive means 700 is mounted on one side of the mounting portion 301 extending rearward of the motor case 300 and connected to the first support arm 210, thereby driving the motor case 300 to swing up and down. The motor case 300 is mounted within the mesh cover 400 and connected to the mesh cover 400. Therefore, the swing drive means 700 does not occupy the connection space between the motor case 300 and the first support arm 210, and the duct within the mesh cover 400 is not affected by the swing drive means 700. To ensure the size of the fan duct, it is not necessary to increase the volume of the mesh cover 400, thereby reducing the space occupied and reducing costs.

[0022] Further, the swing drive means 700 includes a drive motor 710, a gear 720, and a toothed plate 730. The drive motor 710 is mounted inside the mounting portion 301, the gear 720 is mounted on the main shaft of the drive motor 710, one end of the toothed plate 730 is fixedly connected to the first support arm 210, and the other end is provided with gear teeth 731, which mesh with the gear 720. Specifically, in this embodiment, the drive motor 710 drives and rotates the gear 720, and the gear 720 pushes the toothed plate 730. Since one end of the toothed plate 730 is fixedly connected to the first support arm 210, the acting force applied by the drive motor 710 to the toothed plate 730 is transmitted to the motor case 300, and the motor case 300 rotates up and down by receiving the acting force of the drive motor 710.

[0023] Furthermore, a first positioning portion 211 is provided on the inside of the first support arm 210, and a second positioning portion 732 is provided on the end side of the toothed plate 730, and the second positioning portion 732 is engaged with and fixedly connected to the first positioning portion 211. A positioning hole (not shown) is provided in the motor case 300, and the positioning hole is rotatably fitted into the first positioning portion 211 or the second positioning portion 732, so that the motor case 300 is rotatable around the rotatable connection position.

[0024] Furthermore, the first positioning portion 211 includes a protrusion provided on the inner side of the first support arm 210, an adapter sleeve 733 extending from one side of the toothed plate 730, three connecting posts 734 provided within the adapter sleeve 733, and a second positioning portion 732 formed between the three connecting posts 734. A connecting hole is provided in the connecting post 734, and a locking screw passes through the first support arm 210 and is connected to the connecting hole, fixedly connecting the toothed plate 730 and the first support arm 210. The positioning hole is rotatably connected to the adapter sleeve 733. In this embodiment, the positioning engagement between the connecting post 734 and the first positioning portion 211 increases the stability of the engagement, and the connection between the connecting post 734 and the locking screw makes the structure more compact.

[0025] 8 to 10, during the assembly process, the adapter sleeve 733 is inserted through the positioning hole and locked with a lock screw. A connecting portion 221 is provided on the inner side of the second support arm 220, and the motor case 300 is rotatably connected to the connecting portion 221.

[0026] 4, 5, and 9, the driving motor 710 is a synchronous motor, and first and second stoppers 310 and 320 are provided on both outer sides of the motor case 300. In this embodiment, the first and second stoppers 310 and 320 alternately contact the support arms, thereby limiting the angular range of up-and-down swing of the motor case 300. Specifically, when the driving motor 710 drives the gear 720 to drive the motor case 300 to swing up and down, the first stopper 310 contacts the support arm and receives a stopper force, thereby realizing reverse rotation and continuous circulation, thereby allowing the motor case 300 and the mesh cover 400 to form an integrated structure and swing back and forth up and down. The angle of up-and-down swing of the motor case 300 depends on the angle between the first and second stoppers 310 and 320.

[0027] Furthermore, in a specific embodiment in which the motor case 300 and the mesh cover 400 are assembled into an integral structure, a mounting chamber 401 may be provided within the mesh cover 400, and the motor case 300 may be provided within the mounting chamber 401. The first support arm 210 and the second support arm 220 extend from the bottom of the mesh cover 400 into the mounting chamber 401 and are rotatably connected to the motor case 300.

[0028] 3 and 9, an escape hole is provided in the front wall of the mounting chamber 401, a sleeve tube 302 is provided at the front end of the motor case 300 and passes through the escape hole (not shown), the sleeve tube 302 is provided with an external thread, and a lock nut 330 is connected to the external thread of the sleeve tube 302 to fix the motor case 300 within the mounting chamber 401. The main shaft of the fan motor 500 passes through the sleeve tube 302 and protrudes from the mounting chamber 401.

[0029] 1, 2, 3 and 9, in one embodiment of the structure of the mesh cover 400, the mesh cover 400 includes a middle frame 410, a front mesh 420, a rear mesh case 430 and a rear mesh lid 440. The mounting chamber 401 is disposed within the rear mesh case 430, and the rear mesh lid 440 covers the opening of the mounting chamber 401. The middle frame 410 is disposed at the front end of the rear mesh case 430, and a duct is formed on the inner ring of the middle frame 410. The front mesh 420 covers the opening of the middle frame 410.

[0030] 2, the opening of the mounting chamber 401 extends to the bottom of the rear mesh case 430, and the rear mesh cover 440 is provided with a guide groove 441 for accommodating the support arms. When the motor case 300 and the mesh cover 400 swing up and down, the guide groove 441 serves as an escape and guide for the first support arm 210 and the second support arm 220.

[0031] 2, rear mesh case 430 has a hemispherical structure, and a storage chamber 431 is provided behind rear mesh case 430. A chute is provided within storage chamber 431. Therefore, by sliding an ice box into storage chamber 431, it has the effect of blowing cool air up and down. An aroma box or the like can also be placed within storage chamber 431.

[0032] Furthermore, the base 100 is provided with two mounting grooves, and the lower ends of the first support arm 210 and the second support arm 220 are inserted into the corresponding mounting grooves, which simplifies the overall structure of the fan and facilitates quick assembly of the fan.

[0033] Furthermore, referring to Figures 4, 5 and 8, a wiring groove 222 is provided on the inside of the second support arm 220, and a wiring hole 223 is provided at the rotatable connection position between the second support arm 220 and the motor case 300, and an electric wire enters from the bottom end of the second support arm 220 and protrudes from the wiring hole 223 to be connected to the oscillating drive means 700 and the fan motor 500.

Claims

1. An up-and-down oscillating desktop circulation fan, The fan includes a base, a support seat, a motor case, a mesh cover, a fan motor, fan blades, and a swing drive means. the support seat is provided on the base and includes two support arms extending upward, the support arms are provided with connection positions, and the motor case is rotatably connected to the connection positions of the two support arms; the fan motor is provided in the motor case, a main shaft of the fan motor passes through the motor case, and the fan blades are provided on the main shaft of the fan motor; a mounting portion extending rearward from one side of the motor case, the swing drive means being fixedly connected to the mounting portion and further connected to the support arm, and being used to drive the motor case to swing up and down around the connection position; The motor case is disposed within the mesh cover, the motor case and the mesh cover are integrally connected, and the mesh cover can be swung up and down together with the motor case.

2. the swing drive means includes a drive motor, a gear, and a tooth plate; 2. The vertically oscillating desktop circulation fan according to claim 1, wherein the driving motor is disposed inside the mounting part, the gear is disposed on the main shaft of the driving motor, one end of the toothed plate is fixedly connected to the support arm, and the other end is provided with a toothed ring, and the toothed ring is meshed with the toothed ring.

3. a first positioning portion is provided on the inner side of the support arm, and a second positioning portion is provided on an end side of the tooth plate, and the second positioning portion is engaged with and fixedly connected to the first positioning portion; 3. The desktop circulation fan according to claim 2, wherein the motor case is provided with a positioning hole, and the positioning hole is rotatably fitted to the first positioning part or the second positioning part.

4. the first positioning portion includes a protrusion provided on an inner side of the support arm, an adapter sleeve extends from one side of the tooth plate, three connecting posts are provided within the adapter sleeve, and the second positioning portion is formed between the three connecting posts; The connecting post has a connecting hole, and the lock screw passes through the support arm and is connected to the connecting hole; The vertically oscillating desktop circulation fan according to claim 3 , wherein the positioning hole is rotatably connected to the adapter sleeve.

5. An attachment chamber is provided within the mesh cover, and the motor case is provided within the attachment chamber. The vertically oscillating desktop circulation fan according to any one of claims 1 to 4, characterized in that the two support arms protrude from the bottom of the mesh cover into the mounting chamber and are rotatably connected to the motor case.

6. a bypass hole is provided in the front wall of the mounting chamber, a sleeve pipe is provided at the front end of the motor case and passes through the bypass hole, the sleeve pipe is provided with an external thread, and a lock nut is connected to the external thread of the sleeve pipe to fix the motor case in the mounting chamber; 6. The vertically oscillating desktop circulation fan according to claim 5, wherein the main shaft of the fan motor passes through the sleeve tube and protrudes from the mounting chamber.

7. The mesh cover includes a middle frame, a front mesh, a rear mesh case, and a rear mesh lid; the mounting chamber is provided in the rear mesh case, and the rear mesh lid covers an opening of the mounting chamber; the intermediate frame is provided at the front end of the rear mesh case, and a duct is formed in an inner ring of the intermediate frame; The vertically oscillating desktop circulation fan according to claim 5, wherein the front mesh covers the opening of the middle frame.

8. 8. The desktop circulation fan according to claim 7, wherein the opening of the mounting chamber extends to the bottom of the rear mesh case, and the rear mesh case is provided with a guide groove for accommodating the support arm.

9. 2. The desktop circulation fan according to claim 1, wherein the base is provided with a mounting groove, and the lower end of the support arm is inserted into the mounting groove.

10. 10. The up and down oscillating desktop circulation fan of claim 9, wherein a wiring groove is provided on the inner side of the support arm, and a wiring hole is provided at the rotatable connection position between the support arm and the motor case, and electric wires enter from the bottom end of the support arm and protrude from the wiring hole to be connected to the oscillating drive means and the fan motor.

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