A fan tail gear box with a speed regulating pull rope switch

Abstract

The utility model discloses a fan tail gear box with a speed regulating pull rope switch, which relates to the technical field of motor tail gear boxes, including a shell, a fan motor shell is fixedly arranged in the shell, a through hole is opened on the top of the fan motor shell, the fan motor and the speed regulating switch are electrically connected through a power line, the power line passes through the through hole and connects the two, and a pull rope is arranged on the speed regulating switch. The fan tail gear box with a speed regulating pull rope switch of the utility model solves the problem of the power line being exposed outside, reduces the length of the power line required, is easy to assemble, and improves production efficiency. At the same time, a method of adjusting the speed regulating switch is added to adapt to more application scenarios.

Description

Technical Field

[0001] The utility model relates to the technical field of motor tail gear boxes, in particular to a fan tail gear box with a speed regulating pull rope switch. Background Art

[0002] The tail gear box is an important part of the fan motor. It is connected to the motor rotor drive shaft to realize the fan motor's shaking function, thereby achieving the effect of sweeping air over a large area. In order to prevent the interference between the power cord and the motor during operation, the existing fan motor tail gear box usually sets the power cord outside the fan housing. However, this method increases the length of the power cord and increases the production cost. On the other hand, the power cord is exposed and may break due to external factors, affecting the normal use of the fan.

[0003] According to an existing new type of tail gear box for fan motors (Chinese patent with publication number CN214945196U and publication date of November 30, 2021), a fan motor, a power cord and a side U-shaped slot are disclosed. The power cord is fixed at the front end of the fan motor, the side U-shaped slot is fixed on the left side of the cover plate, and the power cord is placed inside the side U-shaped slot. However, the new type of tail gear box for the fan motor requires the power cord to be bypassed from bottom to top around the box body and finally connected to the speed regulating power switch. This technical solution requires a longer power cord, which increases the cost, and the cumbersome assembly affects production efficiency. In addition, the technical solution has a single way of adjusting the speed regulating power switch and a small scope of use. Utility Model Content

[0004] In view of the defects of the above-mentioned prior art, the purpose of the utility model is to provide a fan tail box with a speed control pull-cord switch, which can solve the problems of long power cord, high production cost and complicated assembly, and can also solve the problem of a single method for adjusting the speed control power switch.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A fan tail gear box with a speed control pull rope switch comprises a shell, a fan motor shell is fixedly arranged in the shell, a fan motor is fixedly arranged inside the fan motor shell, a through opening is opened at the top of the fan motor shell, a main body is fixedly arranged at the rear end of the fan motor shell, a cover plate is fixedly arranged on the top of the main body, a speed control switch is arranged on the cover plate, the speed control switch is used to adjust the rotation rate of the fan, the fan motor and the speed control switch are electrically connected through a power cord, the power cord passes through the through opening and connects the two, a lever is fixedly arranged on the speed control switch, a pull rope is fixedly arranged on the lever, the pull rope extends to the outside of the shell, a capacitor is fixedly arranged on the cover plate, and the capacitor is electrically connected to the fan motor.

[0007] Preferably, the fan motor housing and the cover plate are connected via a connecting plate, the fan motor housing and the connecting plate are fixedly connected, and the cover plate and the connecting plate are fixedly connected.

[0008] Preferably, the power line includes a live wire, a neutral wire and a ground wire, which are respectively connected to different contact points of the speed regulating switch. A wire collection sleeve is provided on the power line, and the power line passes through the wire collection sleeve.

[0009] Preferably, the cover plate and the speed regulating switch are connected via a support member, the support member comprises a support column and a support plate, the support column is fixedly arranged on the cover plate, the support plate is fixedly arranged on the support column, and the speed regulating switch is fixedly arranged on the support plate.

[0010] Preferably, a power cord slot is fixedly provided on the top of the fan motor housing.

[0011] Preferably, a guide member is fixedly provided inside the shell, and the pull rope passes through the guide member. The pull rope includes a front pull rope and a rear pull rope that are fixedly connected. The front pull rope is connected to the lever and does not pass through the guide member. The front pull rope can pull the lever laterally, and the rear pull rope passes through the guide member and extends to the outside of the shell in a vertical direction.

[0012] Preferably, the connection position between the capacitor and the cover plate is arranged below the speed regulating switch.

[0013] The beneficial effects of the utility model are:

[0014] The utility model discloses a fan tail gear box with a speed regulating pull-cord switch, by opening a through hole in the top of the fan motor casing, through which the power cord passes to connect the fan motor and the speed regulating switch. This design solves the problem of the power cord being exposed to the outside while reducing the required length of the power cord, facilitating assembly and improving production efficiency. At the same time, by arranging a pull cord on the speed regulating switch, additional ways of adjusting the speed regulating switch are added to adapt to more application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall structural diagram of a fan tail gear box with a speed regulating pull rope switch of the utility model;

[0016] Figure 2 This is a shell structure diagram of a fan tail gear box with a speed regulating pull rope switch of the utility model;

[0017] Figure 3 for Figure 1 A partial enlarged view of area A.

[0018] In the figure: 100, casing; 200, fan motor casing; 300, opening; 400, main body; 500, cover plate; 600, speed control switch; 700, power cord; 800, pull rope; 801, front pull rope; 802, rear pull rope; 900, lever; 110, capacitor; 120, connecting plate; 130, wire collection sleeve; 140, support member; 141, support column; 142, support plate; 150, power cord slot; 160, guide member. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clearly understood, the utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] The embodiments provided by the utility model are as follows: Figures 1 to 3 As shown, a fan tail gear box with a speed regulating pull rope switch includes a shell 100, a fan motor shell 200 is fixedly arranged in the shell 100, a fan motor is fixedly arranged inside the fan motor shell 200, a through opening 300 is opened on the top of the fan motor shell 200, a main body 400 is fixedly arranged at the rear end of the fan motor shell 200, a cover plate 500 is fixedly arranged on the top of the main body 400, a speed regulating switch 600 is arranged on the cover plate 500, and the speed regulating switch 600 is used to adjust the rotation speed of the fan. The fan motor and the speed regulating switch 600 are connected by The power cord 700 is electrically connected, and the power cord 700 passes through the opening 300 and is connected to the two. A lever 900 is fixedly provided on the speed control switch 600, and a pull rope 800 is fixedly provided on the lever 900. The pull rope 800 extends to the outside of the housing 100. The lever 900 is driven to be toggled by pulling the pull rope 800 to adjust the gear position of the speed control switch 600. A capacitor 110 is fixedly provided on the cover plate 500, and the capacitor 110 is electrically connected to the fan motor. When the fan motor is started, the capacitor 110 helps the fan start by changing the phase of the starting coil. Since electric fans usually use single-phase electricity, which is not enough to generate sufficient magnetic field and good operation effect, capacitor 110 is needed to move the phase so that the fan can start. In addition, capacitor 110 can help the circuit remain stable and prevent the fan motor from generating too much electromagnetic wave interference, thereby extending the life of the fan motor.

[0021] When assembling the tail gear box, the installer connects the fan motor to one end of the power cord 700, pulls the power cord 700 through the opening 300, and then connects the other end of the power cord 700 to the speed switch 600 to control the fan speed. The operator can directly control the speed switch 600 to adjust the fan speed, or pull the pull rope 800 to adjust the fan speed.

[0022] Preferably, the fan motor housing 200 and the cover plate 500 are connected via a connecting plate 120, the fan motor housing 200 and the connecting plate 120 are fixedly connected, and the cover plate 500 and the connecting plate 120 are fixedly connected. By providing the connecting plate 120, assembly is more convenient.

[0023] Preferably, the power cord 700 includes a live wire, a neutral wire and a ground wire, which are respectively connected to different contact points of the speed control switch 600. A wire collection sleeve 130 is provided on the power cord 700, and the power cord 700 passes through the wire collection sleeve 130. By providing the wire collection sleeve 130, multiple power cords 700 are brought together to make assembly more convenient.

[0024] Preferably, the cover plate 500 and the speed regulating switch 600 are connected via a support member 140, and the support member 140 includes a support column 141 and a support plate 142, wherein the support column 141 is fixedly disposed on the cover plate 500, the support plate 142 is fixedly disposed on the support column 141, and the speed regulating switch 600 is fixedly disposed on the support plate 142. By providing the support member 140, the horizontal height of the speed regulating switch 600 is raised, which increases the use space of the cover plate 500 on the one hand, and facilitates operation when connecting the power cord 700 and the speed regulating switch 600 on the other hand.

[0025] Preferably, a power cord slot 150 is fixedly provided on the top of the fan motor housing 200, and the power cord slot 150 can limit the position of the power cord 700 to prevent the power cord 700 from interfering with other components.

[0026] Preferably, a guide member 160 is fixedly provided inside the shell 100, and the pull rope 800 passes through the guide member 160. The pull rope 800 includes a front pull rope 801 and a rear pull rope 802 that are fixedly connected. The front pull rope 801 is connected to the lever 900 and does not pass through the guide member 160. The front pull rope 801 can pull the lever 900 laterally, and the rear pull rope 802 passes through the guide member 160 and extends to the outside of the shell 100 in a vertical direction. By providing the guide member 160, when the operator pulls the pull rope 800 downward, the lever 900 is subjected to horizontal pulling force, making the operation more labor-saving.

[0027] Preferably, the connection position between the capacitor 110 and the cover plate 500 is arranged below the speed regulating switch 600 . This arrangement can further increase the usable space of the cover plate 500 .

[0028] The utility model discloses a fan tail gear box with a speed regulating pull-cord switch, by opening a through opening 300 at the top of a fan motor housing 200, through which a power cord 700 passes to connect the fan motor and the speed regulating switch 600 together. This design solves the problem of the power cord 700 being exposed to the outside while reducing the required length of the power cord 700, facilitating assembly and improving production efficiency. At the same time, by arranging a pull cord 800 on the speed regulating switch 600, additional ways of adjusting the speed regulating switch 600 are added to adapt to more application scenarios.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall fall within the protection scope of the present invention.

Claims

1. A fan tail gear box with a speed regulating pull rope switch, comprising a housing (100), characterized in that: A fan motor housing (200) is fixedly arranged in the housing (100), a fan motor is fixedly arranged inside the fan motor housing (200), a through opening (300) is provided at the top of the fan motor housing (200), a main body (400) is fixedly arranged at the rear end of the fan motor housing (200), a cover plate (500) is fixedly arranged at the top of the main body (400), a speed regulating switch (600) is arranged on the cover plate (500), and the speed regulating switch (600) is used to adjust the rotation speed of the fan. The fan motor and the speed regulating switch (600) are electrically connected via a power cord (700), the power cord (700) passes through the through opening (300) and is connected to the two, a lever (900) is fixedly provided on the speed regulating switch (600), a pull rope (800) is fixedly provided on the lever (900), the pull rope (800) extends to the outside of the housing (100), a capacitor (110) is fixedly provided on the cover plate (500), and the capacitor (110) is electrically connected to the fan motor.

2. A fan tail gear box with a speed regulating pull rope switch according to claim 1, characterized in that: The fan motor housing (200) and the cover plate (500) are connected via a connecting plate (120); the fan motor housing (200) and the connecting plate (120) are fixedly connected; and the cover plate (500) and the connecting plate (120) are fixedly connected.

3. A fan tail gear box with a speed regulating pull rope switch according to claim 1, characterized in that: The power line (700) comprises a live line, a neutral line and a ground line, which are respectively connected to different contact points of the speed regulating switch (600); a line collection sleeve (130) is provided on the power line (700), and the power line (700) passes through the line collection sleeve (130).

4. A fan tail gear box with a speed regulating pull rope switch according to claim 1, characterized in that: The cover plate (500) and the speed regulating switch (600) are connected via a support member (140); the support member (140) comprises a support column (141) and a support plate (142); the support column (141) is fixedly arranged on the cover plate (500); the support plate (142) is fixedly arranged on the support column (141); and the speed regulating switch (600) is fixedly arranged on the support plate (142).

5. A fan tail gear box with a speed regulating pull rope switch according to claim 1, characterized in that: A power line slot (150) is fixedly provided on the top of the fan motor housing (200).

6. A fan tail gear box with a speed regulating pull rope switch according to claim 1, characterized in that: A guide member (160) is fixedly arranged inside the shell (100), and the pull rope (800) passes through the guide member (160). The pull rope (800) comprises a front pull rope (801) and a rear pull rope (802) that are fixedly connected to each other. The front pull rope (801) is connected to the lever (900) and does not pass through the guide member (160). The front pull rope (801) can pull the lever (900) laterally, and the rear pull rope (802) passes through the guide member (160) and extends to the outside of the shell (100) in a vertical direction.

7. A fan tail gear box with a speed regulating pull rope switch according to claim 4, characterized in that: The connection position between the capacitor (110) and the cover plate (500) is arranged below the speed regulating switch (600).

Images