Single-motor double-output-shaft tower fan

Abstract

The utility model provides a single-motor double-output-shaft tower fan. The single-motor double-output-shaft tower fan comprises a shell, an upper air drum, a lower air drum and a double-output-shaft motor, wherein the upper air drum and the lower air drum are sequentially arranged in the shell, and the double-output-shaft motor is arranged between the upper air drum and the lower air drum and used for driving the upper air drum and the lower air drum to rotate at the same time. A first transmission structure and a second transmission structure are arranged between the double-output-shaft motor and the upper air drum and between the double-output-shaft motor and the lower air drum respectively, a heating element is further arranged at the position, located at the lower air drum, in the shell, a plurality of first fan blades are arranged on the upper air drum, a plurality of second fan blades are arranged on the lower air drum, and the first fan blades and the second fan blades are opposite in direction. According to the single-motor double-output-shaft tower fan, through the first transmission structure and the second transmission structure which are arranged between the double-output-shaft motor and the upper air drum and between the double-output-shaft motor and the lower air drum, the operation that the single double-output-shaft motor drives the upper air drum and the lower air drum to rotate at the same time can be achieved; therefore, the driving structures of the upper air drum and the lower air drum are effectively simplified, the manufacturing and maintenance cost is reduced, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a single-motor double-output shaft tower fan. Background Art

[0002] The cooling and heating tower fans currently on the market require two motors to drive the two wind drums to rotate separately during use, which leads to high production and maintenance costs, and the manual installation operation is complicated, which seriously affects the installation efficiency. Utility Model Content

[0003] The utility model aims to solve the shortcomings of the existing cooling and heating tower fans, which require two motors to drive two rotations respectively, resulting in high production and maintenance costs, and complicated manual installation operations, which seriously affects the installation efficiency, and provide a single-motor dual-output shaft tower fan.

[0004] The utility model solves the technical problem by adopting a technical solution: a single-motor double-shaft tower fan, comprising a shell, an upper wind drum and a lower wind drum sequentially arranged in the shell, and a double-shaft motor arranged between the upper wind drum and the lower wind drum and used for driving the upper wind drum and the lower wind drum to rotate simultaneously;

[0005] A first transmission structure and a second transmission structure are respectively provided between the double-output shaft motor and the upper wind drum and the lower wind drum. A heating element is also provided in the shell at the lower wind drum. A plurality of first fan blades are provided on the upper wind drum, and a plurality of second fan blades are provided on the lower wind drum, and the directions of the first fan blades and the second fan blades are opposite.

[0006] Furthermore, an upper air duct assembly is provided between the shell and the upper air drum, and the upper air duct assembly includes an upper air pressure plate and an upper air duct plate, and the upper air pressure plate and the upper air duct plate are enclosed to form an upper air duct, and the airflow formed by the double-shaft motor driving the upper air drum to rotate is blown out of the shell along the upper air duct. Furthermore, a lower air duct assembly is provided between the shell and the lower air drum, and the lower air duct assembly includes a lower air pressure plate and a lower air duct plate, and the lower air pressure plate and the lower air duct plate are enclosed to form a lower air duct, and the airflow formed by the double-shaft motor driving the lower air drum to rotate is blown out of the shell along the lower air duct.

[0007] Furthermore, the first transmission structure includes an upper fixed platform arranged at the bottom of the upper air drum and an upper transmission shaft arranged at the end of the dual-output shaft motor and extending toward the upper air drum, and a first mounting hole is provided on the upper fixed platform, and a locking piece passes through the first mounting hole and abuts against the end face of the upper transmission shaft to connect the upper transmission shaft to the upper air drum.

[0008] Furthermore, the second transmission structure includes a lower fixed platform arranged on the top of the lower wind drum and a lower transmission shaft arranged at the end of the dual-output shaft motor and extending toward the lower wind drum, and a second mounting hole is arranged under the lower fixed platform, and a locking piece passes through the second mounting hole and abuts against the end face of the lower transmission shaft to connect the lower transmission shaft to the lower wind drum.

[0009] Furthermore, a motor bracket for mounting the dual-output shaft motor in the housing is also provided in the housing.

[0010] Furthermore, a first connecting structure is provided between the top of the upper wind drum and the shell for rotatably connecting the upper wind drum to the shell, and the first connecting structure includes an upper connecting shaft provided on the top of the upper wind drum, an upper rolling bearing sleeved on the upper connecting shaft, and an upper bearing cover for installing the upper rolling bearing in the shell.

[0011] Furthermore, a second connecting structure is provided between the bottom of the lower wind drum and the shell for rotatably connecting the lower wind drum to the shell, and the second connecting structure includes a lower connecting shaft provided at the bottom of the lower wind drum, a lower rolling bearing sleeved on the lower connecting shaft, and a lower bearing cover and a fixing seat for installing the lower rolling bearing in the shell.

[0012] Furthermore, the shell includes a front shell and a rear shell that are fixedly connected, and an upper air outlet grille and a lower air outlet grille are respectively provided on the front shell at the upper air drum and the lower air drum.

[0013] The beneficial effect of a single-motor double-shaft tower fan provided by the utility model is that: by setting the first transmission structure and the second transmission structure respectively between the double-shaft motor and the upper wind drum and the lower wind drum, it is possible to realize the operation of using a single double-shaft motor to drive the upper wind drum and the lower wind drum to rotate simultaneously, thereby effectively simplifying the drive structure of the upper wind drum and the lower wind drum, reducing the manufacturing and maintenance costs, and effectively simplifying the installation steps, and improving the installation efficiency. In addition, by setting the heating element at the lower wind drum and setting the direction of the first fan blade on the upper wind drum opposite to the direction of the second fan blade on the lower wind drum, when a single double-shaft motor drives the upper wind drum and the lower wind drum to rotate simultaneously, only one of the fan blades in the upper wind drum or the lower wind drum has the same direction as the rotation direction, thereby forming an airflow and blowing it out of the shell, thereby realizing the operation of the single-motor double-shaft tower fan blowing cold air or warm air, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 An exploded schematic diagram of a single-motor dual-shaft tower fan provided by the utility model;

[0015] Figure 2It is a structural schematic diagram of a double-output shaft motor and an upper wind drum and a lower wind drum in a single-motor double-output shaft tower fan provided by the utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of a single-motor dual-shaft tower fan provided by the utility model;

[0017] Figure 4 This is a sectional view of the overall structure of the single-motor dual-shaft tower fan provided by the utility model;

[0018] Figure 5 A schematic diagram of a first fan blade of an upper wind drum and a second fan blade of a lower wind drum in a single-motor double-output shaft tower fan provided by the utility model;

[0019] In the figure:

[0020] 100-single motor double shaft tower fan,

[0021] 10-housing, 11-front housing, 111-upper air grille, 112-lower air grille, 113-heating element,

[0022] 20-upper wind drum, 21-first transmission structure, 21-first fan blade, 22-first transmission structure,

[0023] 221-upper transmission shaft, 222-upper fixed platform, 2221-first mounting hole, 30-lower wind drum,

[0024] 31-second fan blade, 32-second transmission structure, 321-lower transmission shaft, 322-lower fixed platform,

[0025] 3221-second mounting hole, 40-double-shaft motor, 41-motor bracket, 50-upper air duct assembly,

[0026] 51-upper wind pressure plate, 52-upper wind duct plate, 60-lower wind duct assembly, 61-lower wind pressure plate, 62-upper wind duct plate,

[0027] 70-first connecting structure, 71-upper connecting shaft, 72-upper rolling bearing, 73-upper bearing cover,

[0028] 80-second connecting structure, 81-lower connecting shaft, 82-lower rolling bearing, 83-lower bearing cover,

[0029] 84-Fixed seat. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] See also Figure 1-5 , is a single-motor double-axis tower fan 100 provided by the utility model, the single-motor double-axis tower fan 100, comprising a shell 10, an upper wind drum 20 and a lower wind drum 30 sequentially arranged in the shell 10, and a double-axis motor 40 arranged between the upper wind drum 20 and the lower wind drum 30 and used to drive the upper wind drum 20 and the lower wind drum 30 to rotate simultaneously; a first transmission structure 22 and a second transmission structure 32 are respectively provided between the double-axis motor 40 and the upper wind drum 20 and the lower wind drum 30, a heating element 113 is also provided at the lower wind drum 30 in the shell 10, a plurality of first fan blades 21 are provided on the upper wind drum 20, a plurality of second fan blades 31 are provided on the lower wind drum 30, and the directions of the first fan blades 21 and the second fan blades 31 are opposite. The single-motor dual-shaft tower fan 100 provided by the utility model can realize the operation of using a single dual-shaft motor 40 to drive the upper and lower air drums 20 and 30 to rotate simultaneously by means of the first transmission structure 22 and the second transmission structure 32 respectively arranged between the dual-shaft motor 40 and the upper and lower air drums 20 and 30, thereby effectively simplifying the driving structure of the upper and lower air drums 20 and 30, reducing the manufacturing and maintenance costs, and effectively simplifying the installation steps and improving the installation efficiency. In addition, by means of the heating element 113 arranged at the lower air drum 30 and the direction of the first fan blade 21 on the upper air drum 20 being set opposite to the direction of the second fan blade 31 on the lower air drum 30, when the single dual-shaft motor 40 drives the upper and lower air drums 20 and 30 to rotate simultaneously, only one of the fan blades in the upper and lower air drums 20 or 30 has the same direction as the rotation direction, thereby forming an airflow and blowing it out of the shell 10, thereby realizing the operation of the single-motor dual-shaft tower fan 100 to blow cold air or warm air, thereby improving the user experience.

[0032] like Figure 1As shown, an upper air duct assembly 50 is also provided between the housing 10 and the upper air drum 20, and the upper air duct assembly 50 includes an upper air pressure plate 51 and an upper air duct plate 52. The upper air pressure plate 51 and the upper air duct plate 52 enclose an upper air duct, and the airflow formed by the double-shaft motor 40 driving the upper air drum 20 to rotate is blown out of the housing 10 along the upper air duct. When the single-motor double-shaft tower fan 100 is switched to the cold air gear, the double-shaft motor 40 drives the upper air drum 20 and the lower air drum 30 to rotate clockwise. Since the direction of the first fan blade 21 on the upper air drum 20 is the same as the direction of the clockwise rotation of the upper air drum 20, the upper air drum 20 forms an airflow during the clockwise rotation process and blows out of the housing 10 along the upper air duct enclosed between the upper air pressure plate 51 and the upper air duct plate 52, thereby realizing the operation of the single-motor double-shaft tower fan 100 blowing cold air. At the same time, since the direction of the second fan blade 31 on the lower air drum 30 is opposite to the direction of the clockwise rotation of the lower air drum 30, no airflow will be formed during the clockwise rotation of the lower air drum 30, thereby avoiding the heat generated by the heating element at the lower air drum 30 affecting the clockwise rotation of the upper air drum 20 and blowing out the cold air flow outside the shell 10, thereby improving the user experience.

[0033] like Figure 1 As shown, a downwind duct assembly 60 is also provided between the shell 10 and the downwind drum 30, and the downwind duct assembly 60 includes a downwind pressure plate 61 and a downwind duct plate 62. The downwind pressure plate 61 and the downwind duct plate 62 enclose a downwind duct, and the airflow formed by the double-shaft motor 40 driving the downwind drum 30 to rotate is blown out of the shell 10 along the downwind duct. When the single-motor double-shaft tower fan 100 is switched to the warm air gear, the double-shaft motor 40 drives the upper wind drum 20 and the lower wind drum 30 to rotate counterclockwise. Since the direction of the second fan blade 31 on the lower wind drum 30 is the same as the direction of the counterclockwise rotation of the lower wind drum 30, the lower wind drum 30 forms an airflow during the counterclockwise rotation process and carries the heat generated by the heating element along the upper wind duct enclosed between the lower wind pressure plate 61 and the downwind duct plate 62 to blow out of the shell 10, thereby realizing the operation of the single-motor double-shaft tower fan 100 to blow warm air. At the same time, since the direction of the first fan blade 21 on the upper air drum 20 is opposite to the counterclockwise rotation direction of the upper air drum 20, no airflow will be formed during the counterclockwise rotation of the upper air drum 20, thereby avoiding the cold air flow generated by the rotation of the upper air drum 20 affecting the counterclockwise rotation of the lower air drum 30 and blowing out the warm air flow outside the shell 10, thereby improving the user experience.

[0034] like Figure 1-Figure 3As shown, the first transmission structure 22 includes an upper fixed platform 222 disposed at the bottom of the upper wind drum 20 and an upper transmission shaft 221 disposed at the end of the double-output shaft motor 40 and extending toward the upper wind drum 20, and a first mounting hole 2221 is disposed on the upper fixed platform 222, and a locking member passes through the first mounting hole 2221 and abuts against the end surface of the upper transmission shaft 221, so that the upper transmission shaft 221 is transmission-connected to the upper wind drum 20. The second transmission structure 32 includes a lower fixed platform 322 disposed at the top of the lower wind drum 30 and a lower transmission shaft 321 disposed at the end of the double-output shaft motor 40 and extending toward the lower wind drum 30, and a second mounting hole 3221 is disposed below the lower fixed platform 322, and a locking member passes through the second mounting hole 3221 and abuts against the end surface of the lower transmission shaft 321, so that the lower transmission shaft 321 is transmission-connected to the lower wind drum 30. By passing the locking parts such as bolts, studs and pins through the first mounting hole 2221 on the upper fixing platform 222 and the second mounting hole 3221 on the lower fixing platform 322 and fixing them with the upper transmission shaft 221 and the lower transmission shaft 321 of the double-shaft motor 40, the stability and rotation accuracy of the double-shaft motor 40 driving the upper wind drum 20 and the lower wind drum 30 to rotate simultaneously can be effectively ensured, and the upper wind drum 20 or the lower wind drum 30 can be prevented from shaking during the process of the double-shaft motor 40 driving the upper wind drum 20 and the lower wind drum 30 to rotate simultaneously. In the embodiment provided by the utility model, a motor bracket 41 for mounting the double-shaft motor 40 in the housing 10 is also provided in the housing 10. By installing the dual-shaft motor 40 in the shell 10 using the motor bracket 41, the stability of the dual-shaft motor 40 installed in the shell 10 can be effectively guaranteed, and the positioning accuracy of the dual-shaft motor 40 in the shell 10 can be improved, thereby further improving the stability and rotation accuracy of the dual-shaft motor 40 driving the upper air drum 20 and the lower air drum 30 to rotate simultaneously.

[0035] like Figure 1-Figure 3As shown, a first connection structure 70 for rotatably connecting the upper wind drum 20 to the shell 10 is provided between the top of the upper wind drum 20 and the shell 10, and the first connection structure 70 includes an upper connection shaft 71 provided at the top of the upper wind drum 20, an upper rolling bearing 72 sleeved on the upper connection shaft 71, and an upper bearing cover 73 for installing the upper rolling bearing 72 in the shell 10. A second connection structure 80 for rotatably connecting the lower wind drum 30 to the shell 10 is provided between the bottom of the lower wind drum 30 and the shell 10, and the second connection structure 80 includes a lower connection shaft 81 provided at the bottom of the lower wind drum 30, a lower rolling bearing 82 sleeved on the lower connection shaft 81, and a lower bearing cover 83 and a fixing seat 84 for installing the lower rolling bearing 82 in the shell 10. By sleeve-mounting the upper rolling bearing 72 and the lower rolling bearing 82 on the upper connecting shaft 71 at the top of the upper wind drum 20 and the lower connecting shaft 81 at the bottom of the lower wind drum 30, respectively, the upper wind drum 20 and the lower wind drum 30 can be driven by the double-output shaft motor 40 to rotate in the housing 10, and the rotation accuracy and relative position of the upper wind drum 20 and the lower wind drum 30 in the housing 10 are effectively improved to prevent the upper wind drum 20 and the lower wind drum 30 from shaking during the rotation process. By installing the upper rolling bearing 72 in the housing 10 using the upper bearing cover 73 and installing the lower rolling bearing 82 in the housing 10 using the lower bearing cover 83 and the fixing seat 84, the stability of the upper rolling bearing 72 and the lower rolling bearing 82 installed in the housing 10 can be effectively guaranteed.

[0036] like Figure 1 As shown, in the embodiment provided by the utility model, the housing 10 includes a front housing 11 and a rear housing that are fixedly connected, and an upper air outlet grille 111 and a lower air outlet grille 112 are respectively arranged on the front housing 11 at the upper air drum 20 and the lower air drum 30. The upper air outlet grille 111 and the lower air outlet grille 112 arranged on the front housing 11 can effectively achieve the guiding effect of the cold air flow or the warm air flow in the process that the double-output shaft motor 40 drives the upper air drum 20 clockwise to rotate and generates a cold air flow to blow out of the housing 10 to form a cold air flow, and in the process that the double-output shaft motor 40 drives the lower air drum 30 counterclockwise to generate an air flow and blows the heat generated by the heating element out of the housing 10 to form a warm air flow, so that the cold air flow or the warm air flow is blown to the place where the user needs, thereby further improving the user's experience of using the single-motor double-output shaft tower fan 100.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-motor dual-shaft tower fan, characterized in that: It comprises a housing (10), an upper wind drum (20) and a lower wind drum (30) sequentially arranged in the housing (10), and a double-shaft motor (40) arranged between the upper wind drum (20) and the lower wind drum (30) and used for driving the upper wind drum (20) and the lower wind drum (30) to rotate simultaneously; A first transmission structure (22) and a second transmission structure (32) are respectively provided between the double-output shaft motor (40) and the upper wind drum (20) and the lower wind drum (30); a heating element (113) is also provided in the housing (10) at the lower wind drum (30); a plurality of first fan blades (21) are provided on the upper wind drum (20); a plurality of second fan blades (31) are provided on the lower wind drum (30); and the first fan blades (21) and the second fan blades (31) are in opposite directions.

2. A single-motor dual-shaft tower fan as claimed in claim 1, characterized in that: An upper air duct assembly (50) is also provided between the shell (10) and the upper air drum (20), and the upper air duct assembly (50) comprises an upper air pressure plate (51) and an upper air duct plate (52), wherein the upper air pressure plate (51) and the upper air duct plate (52) enclose an upper air duct, and the airflow formed by the double-shaft motor (40) driving the upper air drum (20) to rotate is blown out of the shell (10) along the upper air duct.

3. A single-motor dual-shaft tower fan as claimed in claim 1, characterized in that: A downwind duct assembly (60) is also provided between the shell (10) and the downwind drum (30), and the downwind duct assembly (60) comprises a downwind pressure plate (61) and a downwind duct plate (62). The downwind pressure plate (61) and the downwind duct plate (62) enclose a downwind duct, and the airflow formed by the rotation of the downwind drum (30) driven by the double-shaft motor (40) is blown out of the shell (10) along the downwind duct.

4. A single-motor dual-shaft tower fan as claimed in claim 1, characterized in that: The first transmission structure (22) comprises an upper fixed platform (222) arranged at the bottom of the upper air drum (20) and an upper transmission shaft (221) arranged at the end of the double-output shaft motor (40) and extending toward the upper air drum (20), and a first mounting hole (2221) is provided on the upper fixed platform (222), and a locking member passes through the first mounting hole (2221) and abuts against the end surface of the upper transmission shaft (221) so that the upper transmission shaft (221) is transmission-connected to the upper air drum (20).

5. A single-motor dual-shaft tower fan as claimed in claim 1, characterized in that: The second transmission structure (32) comprises a lower fixed platform (322) arranged on the top of the lower wind drum (30) and a lower transmission shaft (321) arranged at the end of the double-output shaft motor (40) and extending toward the lower wind drum (30), and a second mounting hole (3221) is arranged under the lower fixed platform (322), and a locking member passes through the second mounting hole (3221) and abuts against the end surface of the lower transmission shaft (321) so that the lower transmission shaft (321) is connected to the lower wind drum (30) in a transmission manner.

6. A single-motor dual-shaft tower fan as claimed in claim 5, characterized in that: A motor bracket (41) for mounting the dual-shaft motor (40) in the housing (10) is also provided in the housing (10).

7. A single-motor dual-shaft tower fan as claimed in claim 1, characterized in that: A first connecting structure (70) is provided between the top of the upper wind drum (20) and the shell (10) for rotatably connecting the upper wind drum (20) to the shell (10), and the first connecting structure (70) includes an upper connecting shaft (71) provided on the top of the upper wind drum (20), an upper rolling bearing (72) sleeved on the upper connecting shaft (71), and an upper bearing cover (73) for installing the upper rolling bearing (72) in the shell (10).

8. A single-motor dual-shaft tower fan as claimed in claim 1, characterized in that: A second connection structure (80) is provided between the bottom of the lower wind drum (30) and the shell (10) for rotatably connecting the lower wind drum (30) to the shell (10), and the second connection structure (80) comprises a lower connection shaft (81) provided at the bottom of the lower wind drum (30), a lower rolling bearing (82) sleeved on the lower connecting shaft (81), and a lower bearing cover (83) and a fixing seat (84) for mounting the lower rolling bearing (82) in the shell (10).

9. A single-motor dual-shaft tower fan as claimed in claim 1, characterized in that: The housing (10) comprises a front shell (11) and a rear shell which are fixedly connected, and an upper air outlet grille (111) and a lower air outlet grille (112) are respectively arranged on the front shell (11) at the upper air drum (20) and the lower air drum (30).

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