CN219352441U - Hedge trimmer with cooling structure - Google Patents
Hedge trimmer with cooling structure Download PDFInfo
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- CN219352441U CN219352441U CN202320598391.6U CN202320598391U CN219352441U CN 219352441 U CN219352441 U CN 219352441U CN 202320598391 U CN202320598391 U CN 202320598391U CN 219352441 U CN219352441 U CN 219352441U
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- motor
- fan blade
- air
- gear box
- air outlet
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Abstract
The utility model discloses a hedge trimmer with a cooling structure, which comprises a machine shell and a blade, wherein a motor, a gear box and a transmission mechanism arranged in the gear box are arranged in the machine shell, the blade is in transmission connection with the motor through the transmission mechanism, a guide sleeve with an upward opening is fixed above one end of the gear box, the motor is arranged in the guide sleeve, the motor is connected with a fan blade, the fan blade is positioned in the guide sleeve, an air outlet is formed in the side wall of the guide sleeve, the air outlet is formed towards the other end of the gear box, when the motor drives the fan blade to rotate, air flow entering from the upper opening of the guide sleeve and discharged from the air outlet after passing through the inside of the guide sleeve is formed, the guide sleeve is used as a structure similar to an air cylinder when the fan blade rotates to guide the air flow, so that the air flow is more concentrated, the air flow passes through the inside of the guide sleeve to dissipate heat of the motor, the air flow is discharged from the air outlet, and is blown onto the top surface of the gear box to dissipate heat of the gear box, and the heat dissipation effect of the gear box and the motor is improved.
Description
Technical Field
The present utility model relates to a hedge trimmer, and more particularly, to a hedge trimmer having a cooling structure.
Background
The hedge trimmer is also called hedge trimmer, and is suitable for special trimming in the aspect of landscaping such as tea trimming, parks, garden, roadside hedges and the like. The operation is very simple and convenient, the application range is wide, and various cutters can be matched. The collecting box can also be additionally arranged on the machine shell and used as a tea picking machine for picking tea leaves.
For example, a portable hedge trimmer for gardens of patent CN212993192U, including the fuselage, be equipped with battery mechanism and gear box in the fuselage, battery mechanism includes gear box seat, motor, controller and battery package, and gear box seat links to each other with the fuselage is inside fixed, and gear box seat top is located to the motor, and the sword strip passes through the gear box and links to each other with motor drive, and the motor passes through the motor fixing base and links to each other with the gear box is fixed.
The existing hedge trimmer has the following problems: the gearbox and the motor of electric hedge trimmer can produce a large amount of heat in the course of the work, and current product radiating effect is not good, is unsuitable for long-time continuous operation, also can be from taking the fan on the current motor, and the fan passes through motor shaft drive rotation, at the fan during operation, can't form concentrated air current, and the radiating effect is not good.
Disclosure of Invention
Based on the defects that the gearbox and the motor can generate a large amount of heat in the working process, the traditional hedge trimmer has poor heat dissipation effect on the gearbox and the motor, and the like, the utility model provides the hedge trimmer with a cooling structure.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a hedge trimmer with cooling structure, includes casing and blade, is equipped with motor, gear box and locates the drive mechanism in the gear box in the casing, and the blade passes through drive mechanism and links to each other with motor drive, its characterized in that, the top of gear box one end is fixed with the ascending water conservancy diversion sleeve of opening, the motor is installed in the water conservancy diversion sleeve, and the motor is connected with the fan blade, the fan blade is located the water conservancy diversion sleeve, the air outlet has been seted up on the water conservancy diversion sleeve's the lateral wall, the air outlet is seted up towards the other end of gear box, and when motor drive fan blade was rotatory, forms and gets into from water conservancy diversion sleeve top opening, through water conservancy diversion sleeve inside back follow air outlet exhaust air current.
The further preferable technical scheme of the utility model is as follows: the flow guiding sleeve and the gear box are integrally formed.
The further preferable technical scheme of the utility model is as follows: the fan blade is arranged below the motor, the fan blade is arranged at the bottom in the flow guide sleeve, and the air outlet is opposite to the edge of the fan blade.
The further preferable technical scheme of the utility model is as follows: the flow guide sleeve is internally provided with a volute type flow guide air channel which is arranged around the fan blade, and the air outlet is arranged on the flow guide air channel.
The further preferable technical scheme of the utility model is as follows: the air outlet is arranged at the bottom of the side wall of the flow guide sleeve, and the air outlet is adjacent to the top of the gear box.
The further preferable technical scheme of the utility model is as follows: the fan blade is arranged below the motor, the fan blade is arranged at the bottom in the flow guide sleeve, the outer side wall of the motor and the edge of the fan blade are attached to the inner side wall of the flow guide sleeve, the flow guide air channel is formed by inwards concavely forming the inner side wall of the flow guide sleeve, an air inlet is formed in the top of the motor, an air flow channel communicated with the air inlet and the fan blade below is arranged in the motor, and when the fan blade is started, an air flow flowing from the air inlet above the motor to the fan blade below through the inside of the motor is formed.
The further preferable technical scheme of the utility model is as follows: the motor is an outer rotor motor, a mounting seat is fixed above an inner stator of the motor and fixedly connected with the top of the flow guide sleeve, an air inlet for external air to enter an air flow channel is formed in the mounting seat, and the fan blade is connected to the bottom of the outer rotor of the motor.
The further preferable technical scheme of the utility model is as follows: the width of the guide air duct gradually increases from the starting point to the ending point, the air outlet is arranged at the ending point of the guide air duct, and the air outlet is of a horn-shaped structure.
The further preferable technical scheme of the utility model is as follows: the air outlet faces the direction extending to the maximum length of the gear box.
The further preferable technical scheme of the utility model is as follows: the fan blade is a centrifugal fan.
Compared with the prior art, the utility model has the advantages that the upper part of one end of the gear box is fixedly provided with the guide sleeve with the upward opening, the motor is arranged in the guide sleeve, the motor is connected with the fan blade, the fan blade is positioned in the guide sleeve, the side wall of the guide sleeve is provided with the air outlet, the air outlet is arranged towards the other end of the gear box, when the motor drives the fan blade to rotate, the air flow entering the guide sleeve from the upper opening of the guide sleeve and discharged from the air outlet on the side wall after passing through the inside of the guide sleeve is formed, and when the fan blade rotates, the guide sleeve is used for guiding the air flow as a structure similar to an air cylinder, so that the air flow is more concentrated, the air flow radiates the inside of the motor through the inside of the guide sleeve, the air flow is discharged from the air outlet, and is blown onto the top surface of the gear box to radiate the heat of the gear box, and the heat radiation effect on the gear box and the motor is improved.
Drawings
The utility model will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the utility model. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a split view of the housing of the present utility model;
FIG. 3 is a schematic view of the motor, gearbox and blade connection configuration;
FIG. 4 is a split view of the motor and gearbox;
FIG. 5 is a schematic diagram in partial cutaway of the present utility model;
FIG. 6 is a schematic diagram showing a second partial cut-away view of the present utility model;
fig. 7 is a split view of the upper and lower half shells.
In the figure: 1. a housing; 2. a blade; 3. a gear box; 4. an air outlet; 5. a flow sleeve; 6. a fan blade; 7. an air inlet; 8. a mounting base; 9. a lug; 10. screw holes; 11. a lower half shell; 12. a motor; 13. a threaded hole; 14. an opening; 15. an upper half shell; 16. a diversion air duct; 17. an inner stator; 18. an outer rotor; 19. a transmission mechanism; 20. an air flow channel.
Detailed Description
Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the utility model.
It should be noted that: like reference numerals denote like items in the following figures, and thus once an item is defined in one figure, it may not be further defined and explained in the following figures.
The hedge trimmer with the cooling structure comprises a machine shell 1 and a blade 2, wherein a motor 12, a gear box 3 and a transmission mechanism 19 arranged in the gear box 3 are arranged in the machine shell 1, the blade 2 is in transmission connection with the motor 12 through the transmission mechanism 19, and the transmission mechanism 19 receives the output power of the motor 12 and transmits the output power to the blade 2, so that the blade 2 moves to trim or is used as a tea picking machine to pick tea leaves.
The structure of the blade 2 which is connected with the motor 12 through the transmission mechanism 19 in the gear box 3 for transmission is the same as that of the prior hedge trimmer, and the patent is not explained in detail.
As shown in fig. 4, a guide sleeve 5 with an upward opening 14 is fixed above one end of the gear box 3, and preferably, the guide sleeve 5 is integrally formed with the gear box 3.
As shown in fig. 7, specifically, the gear case 3 includes an upper half shell 15 and a lower half shell 11, the upper half shell 15 and the lower half shell 11 are fixed by screws, an assembling cavity for assembling the transmission mechanism 19 is formed between the upper half shell 15 and the lower half, and the flow guiding sleeve 5 and the upper half shell 15 are integrally formed.
As shown in fig. 3, the motor 12 is installed in the flow guiding sleeve 5, the motor 12 is connected with the fan blade 6, the fan blade 6 is located in the flow guiding sleeve 5, the side wall of the flow guiding sleeve 5 is provided with the air outlet 4 communicated with the inside of the flow guiding sleeve 5, and the air outlet 4 is arranged towards the other end of the gear box 3.
As shown in fig. 6, when the motor 12 is started, the fan blade 6 is driven to rotate in the guide sleeve 5, so that air flow entering the guide sleeve 5 from the opening 14 above the guide sleeve 5 and discharged from the air outlet 4 after passing through the inside of the guide sleeve 5 is formed, and when the fan blade 6 rotates, the guide sleeve 5 is used as a structure similar to an air duct to guide the air flow, so that the air flow is more concentrated, the air flow radiates heat to the motor 12 inside through the inside of the guide sleeve 5, the air flow is discharged from the air outlet 4 and blown to the top surface of the gear box 3 to radiate heat to the gear box 3, and the heat radiation effect to the gear box 3 and the motor 12 is improved.
In addition, the fan blade 6 is disposed below the motor 12, and the fan blade 6 is disposed at the bottom in the flow guiding sleeve 5 to form an inverted structure of the motor 12, and the air outlet 4 faces the edge of the fan blade 6, preferably, the fan blade 6 is a centrifugal fan.
The centrifugal fan axially intakes air and radially outputs air, the motor 12 is inverted to enable the fan blades 6 to be positioned at the bottom in the flow guide sleeve 5, so that air flow can pass through the whole flow guide sleeve 5 from top to bottom and is discharged from the air outlet 4 at the bottom, so that the air flow can pass through the whole motor 12, and better heat dissipation can be achieved for the motor 12.
Preferably, the air outlet 4 is disposed at the bottom of the flow guiding sleeve 5, and the air outlet 4 is adjacent to the top of the gear box 3, so that the air blown out by the air outlet 4 is close to the top surface of the gear box 3, and better heat dissipation is achieved for the gear box 3.
In addition, as shown in fig. 5, a guiding air duct 16 surrounding the fan blade 6 is arranged in the guiding sleeve 5, the guiding air duct 16 is a volute type air duct, and the air outlet 4 is arranged on the guiding air duct 16.
Preferably, the width of the air guide duct 16 gradually increases from the starting point to the ending point, the air outlet 4 is arranged at the ending point of the air guide duct 16, and the air outlet 4 is in a horn-shaped structure.
Preferably, the fan blade 6 is arranged below the motor 12, the fan blade 6 is arranged at the bottom in the flow guide sleeve 5, the outer side wall of the motor 12 and the edge of the fan blade 6 are attached to the inner side wall of the flow guide sleeve 5, the flow guide air duct 16 is formed by the inner side wall of the flow guide sleeve 5 being concave, the top of the motor 12 is provided with the air inlet 7, the air flow channel 20 which is communicated with the upper air inlet 7 and the lower fan blade 6 is arranged in the motor 12, when the fan blade 6 is started, air flow entering from the air inlet 7 above the motor 12 and flowing to the fan blade 6 below passes through the inside of the motor 12, the fan blade 6 centrifugally discharges the air flow into the flow guide air duct 16 around, and finally the air flow is discharged from the air outlet 4 through the flow guide air duct 16. This structure makes the better wind pressure that produces in the water conservancy diversion sleeve 5, makes outside air can be inhaled from water conservancy diversion sleeve 5 top opening 14 to discharge from air outlet 4, forms the air current to motor 12 and the heat dissipation of gear box 3.
In addition, the air flow flows through the inside of the motor 12 from top to bottom, so that heat generated in the inside of the motor 12 can be better taken away.
As shown in fig. 4, specifically, the motor 12 is an external rotor motor, a mounting seat 8 is fixed above an inner stator 17 of the motor 12, four extending lugs 9 are arranged on the outer edge of the mounting seat 8, screw holes 10 are arranged on the lugs 9, screw holes 13 corresponding to the screw holes 10 are arranged on the upper edge of the flow guiding sleeve 5, screws penetrate through the screw holes 10 and are connected with the screw holes 13, the mounting seat 8 is fixed on the flow guiding sleeve 5, an air inlet 7 for external air to enter an air flow channel 20 is arranged on the mounting seat 8, the fan blades 6 are connected to the bottom of the external rotor 18 of the motor 12, and the fan blades 6 are driven to rotate by the external rotor 18.
In addition, as shown in fig. 3, the air outlet 4 extends in a direction toward the maximum length of the gear case 3. As shown in the figure, the maximum length extending direction of the gear box 3 extends from back to front, the flow guiding sleeve 5 is arranged at the rear end of the gear box 3, the front end of the gear box 3 is provided with an inlet for the blade 2 to enter the gear box 3 and connected with the transmission mechanism 19, and the air outlet 4 is arranged towards the front. The air flow blown out from the air outlet 4 can be blown to the top of the gear box 3 to the greatest extent, and a better heat dissipation effect is achieved.
When the fan blades 6 rotate, the air flow entering the flow guide sleeve 5 can also partially dissipate heat of the gear box 3 below the flow guide sleeve 5.
Gaps for the outer rotor 18 and the wind blades 6 to rotate are formed between the motor 12, the wind blades 6 and the inner side wall of the flow guide sleeve 5.
The hedge trimmer with the cooling structure provided by the utility model is described above, and specific examples are applied to illustrate the principle and the implementation of the utility model, and the description of the examples is only used for helping to understand the utility model and the core idea. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (10)
1. The utility model provides a hedge trimmer with cooling structure, includes casing and blade, is equipped with motor, gear box and locates the drive mechanism in the gear box in the casing, and the blade passes through drive mechanism and links to each other with motor drive, its characterized in that, the top of gear box one end is fixed with the ascending water conservancy diversion sleeve of opening, the motor is installed in the water conservancy diversion sleeve, and the motor is connected with the fan blade, the fan blade is located the water conservancy diversion sleeve, the air outlet has been seted up on the water conservancy diversion sleeve's the lateral wall, the air outlet is seted up towards the other end of gear box, and when motor drive fan blade was rotatory, forms and gets into from water conservancy diversion sleeve top opening, through water conservancy diversion sleeve inside back follow air outlet exhaust air current.
2. The hedge trimmer with cooling structure of claim 1 wherein the flow sleeve is integrally formed with the gear box.
3. The hedge trimmer with a cooling structure according to claim 1 wherein the fan blade is arranged below the motor and at the bottom in the flow sleeve, and the air outlet is opposite to the edge of the fan blade.
4. The hedge trimmer with the cooling structure of claim 1 wherein the guide sleeve is internally provided with a volute-type guide air duct arranged around the fan blade, and the air outlet is arranged on the guide air duct.
5. A hedge trimmer with a cooling structure according to claim 1 or 3 wherein the air outlet is provided in the bottom of the side wall of the flow sleeve and the air outlet is adjacent the top of the gearbox.
6. The hedge trimmer with the cooling structure of claim 4 wherein the fan blade is arranged below the motor, the fan blade is arranged at the bottom in the flow guide sleeve, the outer side wall of the motor and the edge of the fan blade are attached to the inner side wall of the flow guide sleeve, the flow guide air channel is formed by inwards concave inner side wall of the flow guide sleeve, the top of the motor is provided with an air inlet, and an air flow channel which is communicated with the air inlet and the fan blade below is arranged in the motor, and when the fan blade is started, an air flow which flows from the air inlet above the motor to the fan blade below through the inside of the motor is formed.
7. The hedge trimmer with the cooling structure of claim 6 wherein the motor is an outer rotor motor, a mounting seat is fixed above the inner stator of the motor, the mounting seat is fixedly connected with the top of the flow guiding sleeve, an air inlet for external air to enter the air flow channel is arranged on the mounting seat, and the fan blade is connected to the bottom of the outer rotor of the motor.
8. The hedge trimmer with the cooling structure of claim 4 wherein the width of the guide air duct gradually increases from the start point to the end point, the air outlet is arranged at the end point of the guide air duct, and the air outlet is of a bell mouth-shaped structure.
9. Hedge trimmer with cooling structure according to claim 1, wherein the air outlet is directed in a direction extending the maximum length of the gearbox.
10. The hedge trimmer with cooling structure of claim 1, 3 or 4 wherein the fan blade is a centrifugal fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320598391.6U CN219352441U (en) | 2023-03-22 | 2023-03-22 | Hedge trimmer with cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320598391.6U CN219352441U (en) | 2023-03-22 | 2023-03-22 | Hedge trimmer with cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219352441U true CN219352441U (en) | 2023-07-18 |
Family
ID=87148394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320598391.6U Active CN219352441U (en) | 2023-03-22 | 2023-03-22 | Hedge trimmer with cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219352441U (en) |
-
2023
- 2023-03-22 CN CN202320598391.6U patent/CN219352441U/en active Active
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