Motor cooling device of a mower and mower

Abstract

The utility model discloses a motor heat abstractor and mower of mower, the mower includes bottom disc (1), with motor (4) of bottom disc (1) fixed connection, electric control subassembly, be located bottom disc (1) below and with the output shaft connection of motor (4) cutting blade subassembly (5), the bottom disc (1) top is equipped with the head shell (9) for with motor (4) and electric control subassembly cover in, motor heat abstractor of the mower includes respectively with the head shell (9) fixed connection of exhaust fan (11), with the air inlet baffle (14) of air inlet groove, air inlet baffle (14) outside is equipped with filter frame (16), be equipped with quick detach type first grade filter element (17) on filter frame (16), be equipped with second grade filter element (15) between filter frame (16) with air inlet baffle (14).

Description

Technical Field

[0001] This utility model relates to the field of garden machinery and equipment technology, specifically to a motor cooling device for a lawnmower; in addition, this utility model also relates to a lawnmower. Background Technology

[0002] A lawnmower, also known as a lawn trimmer, is a mechanical device used for mowing lawns and vegetation. Its core function is to use the high-speed rotation of motor-driven blades to cut and level the grass, saving workers' time and significantly reducing manpower. With technological advancements, electric lawnmowers are increasingly replacing traditional petroleum-fueled engines as their power source.

[0003] With the increasing popularity of electric lawnmowers, the power of motors and electronic control systems is constantly improving, making heat dissipation a more prominent issue. To prevent interference from external insects and moisture, motors and electronic control systems are generally installed in relatively enclosed spaces. During prolonged, high-intensity operation, existing electric lawnmowers tend to accumulate heat in the motors and electronic control components, leading to overheating and ineffective heat dissipation, affecting the normal and stable operation and lifespan of the equipment. Furthermore, the dusty environment during lawnmowing easily clogs the system, further exacerbating the heat dissipation problem and making maintenance difficult. Therefore, there is an urgent need to develop a motor cooling device for lawnmowers that offers excellent heat dissipation, strong protection, and easy maintenance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a motor cooling device for lawnmowers with good heat dissipation, strong protection and convenient maintenance, so as to solve the technical problems of poor heat dissipation, weak protection and difficult maintenance of existing lawnmower motors and electronic control components, so as to improve the working stability and service life of lawnmowers.

[0005] This utility model also provides a lawnmower with the above-mentioned motor heat dissipation device.

[0006] The technical solution adopted by the motor cooling device of the lawnmower of this utility model is as follows: the lawnmower includes a chassis, a motor fixedly connected to the chassis, an electronic control component, and a cutting blade assembly located below the chassis and connected to the output shaft of the motor. A head shell is provided above the chassis to cover the motor and the electronic control component. The motor cooling device of the lawnmower includes an exhaust fan fixedly connected to the head shell, an air inlet baffle with an air inlet groove, a filter frame provided on the outside of the air inlet baffle, a quick-release primary filter element provided on the filter frame, and a secondary filter element provided between the filter frame and the air inlet baffle.

[0007] There are two air inlet baffles, which are located on both sides of the front of the head shell and are arranged symmetrically; there is one exhaust fan, which is located at the rear of the head shell.

[0008] The exhaust fan and the air inlet baffle are fixedly connected to the inner wall of the head shell, and the filter frame is fixedly connected to the outer wall of the head shell.

[0009] The exhaust fan has louvers at its air outlet.

[0010] A filter screen is provided between the air outlet of the exhaust fan and the louvers.

[0011] The louvers are fixedly connected to the outer wall of the head shell.

[0012] The filter frame is provided with a pair of slots that are closed at one end. The open end of the slot is provided with a pair of slots. One end of the outer frame of the primary filter element is provided with a pair of elastic clips. The side of the elastic clip is provided with a pair of protrusions. After the primary filter element is inserted into the slot through the outer frame, the protrusions fall into the slots to achieve fixation. When it is necessary to disassemble the primary filter element, the elastic clips are pressed inward, the protrusions are moved out of the slots, and then the elastic clips are pulled outward, so that the primary filter element is removed from the slot.

[0013] The front of the head shell is provided with an outer baffle that is adapted to the shape of its front and is fixedly connected to the chassis. The outer baffle covers the front of the filter frame and has ventilation holes.

[0014] The technical solution adopted by the lawnmower of this utility model is as follows: The lawnmower of this utility model includes a chassis, a motor fixedly connected to the chassis, an electronic control component, a cutting blade assembly located below the chassis and connected to the output shaft of the motor, a front wheel assembly, a rear wheel assembly, a grass collection box, a handle assembly, a control panel, and a motor cooling device. A head shell is provided on the top of the chassis to cover the motor and the electronic control component. The motor cooling device includes an exhaust fan fixedly connected to the head shell and an air inlet baffle with an air inlet slot. A filter frame is provided on the outside of the air inlet baffle. A quick-release primary filter element is provided on the filter frame. A secondary filter element is provided between the filter frame and the air inlet baffle.

[0015] There are two air inlet baffles, which are located on both sides of the front of the head shell and are arranged symmetrically; there is one exhaust fan, which is located at the rear of the head shell.

[0016] The exhaust fan and the air inlet baffle are fixedly connected to the inner wall of the head shell, and the filter frame is fixedly connected to the outer wall of the head shell.

[0017] The exhaust fan is equipped with louvers at its air outlet.

[0018] A filter screen is provided between the air outlet of the exhaust fan and the louvers.

[0019] The louvers are fixedly connected to the outer wall of the head shell.

[0020] The filter frame is provided with a pair of slots that are closed at one end. The open end of the slot is provided with a pair of slots. One end of the outer frame of the primary filter element is provided with a pair of elastic clips. The side of the elastic clip is provided with a pair of protrusions. After the primary filter element is inserted into the slot through the outer frame, the protrusions fall into the slots to achieve fixation. When it is necessary to disassemble the primary filter element, the elastic clips are pressed inward, the protrusions are moved out of the slots, and then the elastic clips are pulled outward, so that the primary filter element is removed from the slot.

[0021] The front of the head shell is provided with an outer baffle that is adapted to the shape of its front and is fixedly connected to the chassis. The outer baffle covers the front of the filter frame and has ventilation holes.

[0022] The beneficial effects of this utility model are as follows: The lawnmower includes a chassis, a motor fixedly connected to the chassis, an electronic control assembly, and a cutting blade assembly located below the chassis and connected to the output shaft of the motor. A head shell is provided above the chassis to enclose the motor and the electronic control assembly. The motor cooling device of the lawnmower includes an exhaust fan fixedly connected to the head shell, an air inlet baffle with an air inlet slot, a filter frame on the outside of the air inlet baffle, a quick-release primary filter element on the filter frame, and a secondary filter element between the filter frame and the air inlet baffle. The motor cooling device of this utility model overcomes the defects and shortcomings of the prior art, has a compact overall structure, is easy to install and integrate, and does not occupy additional space in the equipment. Forced ventilation by the exhaust fan allows outside air to enter the space inside the head shell and exhausts the heat generated by the motor and electronic control assembly. Forced airflow is used to dissipate heat, improving heat dissipation efficiency, effectively reducing the temperature of the motor and electronic control components, and extending the service life of the equipment. A multi-stage filtration air intake system filters impurities and dust, improving the cleanliness of the air entering the head housing, ensuring the motor and electronic control components operate in a clean environment, guaranteeing operational stability, extending maintenance time and service life, and providing strong protection. The quick-release primary filter element facilitates cleaning and filter media replacement, making maintenance convenient. The filter device is reusable, reducing operating costs. This invention effectively solves the heat dissipation problem of motors and electronic control components in existing lawnmowers, improving equipment stability and service life, adapting to different working environments, ensuring heat dissipation effect, and demonstrating strong adaptability, with good market prospects and application value. Therefore, the motor heat dissipation device of this lawnmower has good heat dissipation effect, strong protection capability, and convenient maintenance, improving the working stability and service life of the lawnmower.

[0023] Similarly, the lawnmower of this invention also has the above-mentioned advantages. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the lawnmower according to Embodiment 1 of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure of the lawnmower according to another perspective of Embodiment 1 of this utility model;

[0026] Figure 3 This is an exploded structural diagram of the motor heat dissipation device of the lawnmower according to Embodiment 1 of this utility model;

[0027] Figure 4 This is an exploded structural diagram of the motor cooling device of the lawnmower according to Embodiment 1 of this utility model from another perspective.

[0028] Figure 5This is a schematic diagram of the overall structure of the lawnmower according to Embodiment 2 of this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the primary filter frame according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the primary filter according to an embodiment of the present invention. Detailed Implementation

[0031] Example 1:

[0032] like Figures 1-4 , Figure 6 , Figure 7 As shown, the lawnmower in this embodiment is an electric lawnmower, including a chassis 1, a motor 4 fixedly connected to the chassis 1, an electronic control assembly, a cutting blade assembly 5 located below the chassis 1 and connected to the output shaft of the motor 4, a front wheel assembly 2, a rear wheel assembly 3, a grass collection box 6, a handle assembly 7, a control panel 8, and a motor cooling device. A head shell 9 is provided above the chassis 1 to enclose the motor 4 and the electronic control assembly. The motor cooling device of the lawnmower includes an exhaust fan 11 fixedly connected to the head shell 9 and an air inlet baffle 1 with an air inlet slot. 4. A filter frame 16 is provided on the outer side of the air inlet baffle 14. A quick-release primary filter element 17 is provided on the filter frame 16. A secondary filter element 15 is provided between the filter frame 16 and the air inlet baffle 14. The primary filter element 17 uses a coarse filter screen to intercept larger particles and impurities. The secondary filter element 15, located behind the primary filter element 17, uses a fine filter screen to intercept tiny particles and filter dust, effectively blocking impurities of different particle sizes from entering. The filter screen is made of high-temperature resistant and easy-to-clean materials such as nylon or silicone, and can be reused or replaced.

[0033] Specifically, there are two air inlet baffles 14, symmetrically arranged on both sides of the front of the head shell 9; there is one exhaust fan 11, located at the rear of the head shell 9, to facilitate airflow from the front during mowing. The exhaust fan 11 and the air inlet baffles 14 are fixedly connected to the inner wall of the head shell 9, and the filter frame 16 is fixedly connected to the outer wall of the head shell 9. The exhaust fan 11 has a louver at its outlet, which is fixedly connected to the outer wall of the head shell 9, and a filter screen 13 is provided between the exhaust fan 11's outlet and the louver.

[0034] The filter frame 16 is provided with a pair of slots 161, each closed at one end. The open end of each slot 161 is provided with a pair of slots 160. One end of the outer frame of the primary filter element 17 is provided with a pair of elastic clips 171. The side of each elastic clip 171 is provided with a pair of protrusions 170. After the primary filter element 17 is inserted into the slots 161 through the outer frame, the protrusions 170 fall into the slots 160 to achieve fixation. When it is necessary to disassemble the primary filter element 17, the elastic clips 171 are pressed inward, the protrusions 170 are moved out of the slots 160, and then the elastic clips 171 are pulled outward, so that the primary filter element 17 is removed from the slots 161. The primary filter element 17 adopts a detachable snap-fit ​​structure, which can be disassembled without tools, making it convenient for maintenance and replacement of filter media.

[0035] Furthermore, the head shell 9 is provided with an outer baffle 10 that is adapted to its front shape and fixedly connected to the chassis 1. The outer baffle 10 covers the front of the filter frame 16 and is provided with ventilation holes 100. The outer baffle 10 blocks grass clippings and large particles of impurities generated during grass cutting to prevent them from adhering to the primary filter element 17, prevents blockage of the heat dissipation channel, and avoids affecting the amount of airflow entering the head shell 9, thereby ensuring airflow and heat dissipation efficiency.

[0036] Example 2:

[0037] like Figure 5 As shown, the difference between the lawnmower in this embodiment and that in embodiment one is that the lawnmower in this embodiment does not include the outer baffle 10 in embodiment one.

[0038] The remaining features of this embodiment are the same as those of Embodiment 1.

[0039] The motor cooling device of this utility model for a lawnmower overcomes the defects and shortcomings of existing technologies. Its overall structure is compact, easy to install and integrate, and does not occupy additional space in the equipment. Forced ventilation via the exhaust fan 11 allows outside air to enter the space inside the head shell 9, expelling the heat generated by the motor 4 and electronic control components. This forced airflow achieves heat dissipation, improving efficiency, effectively reducing the temperature of the motor and electronic control components, and extending the equipment's lifespan. A multi-stage filtration air intake system filters impurities and dust, improving the cleanliness of the air entering the space inside the head shell 9, ensuring that the motor 4 and electronic control components operate in a clean environment. A clean environment ensures operational stability, extends maintenance time and service life, and provides strong protection. The quick-release primary filter element 17 facilitates cleaning and filter media replacement, making maintenance convenient. The filter device is reusable, reducing operating costs. It effectively solves the heat dissipation problem of motors and electronic control components in existing lawnmowers, improving equipment stability and service life. It adapts to different working environments, ensuring effective heat dissipation and strong adaptability, demonstrating good market prospects and application value. Therefore, the motor cooling device of this lawnmower has good heat dissipation effect, strong protection, and convenient maintenance, improving the operational stability and service life of the lawnmower. Similarly, the lawnmower of this invention also possesses the above advantages.

[0040] This invention can be widely applied in the field of garden machinery and equipment.

Claims

1. A motor cooling device for a lawnmower, characterized in that: The lawnmower includes a chassis (1), a motor (4) fixedly connected to the chassis (1), an electronic control assembly, and a cutting blade assembly (5) located below the chassis (1) and connected to the output shaft of the motor (4). A head shell (9) is provided above the chassis (1) to cover the motor (4) and the electronic control assembly. The motor cooling device of the lawnmower includes an exhaust fan (11) fixedly connected to the head shell (9) and an air inlet baffle (14) with an air inlet slot. A filter frame (16) is provided on the outside of the air inlet baffle (14). A quick-release primary filter element (17) is provided on the filter frame (16). A secondary filter element (15) is provided between the filter frame (16) and the air inlet baffle (14).

2. The motor cooling device for a lawnmower according to claim 1, characterized in that: Two air inlet baffles (14) are provided, located on both sides of the front of the head shell (9) and arranged symmetrically; one exhaust fan (11) is provided, located at the rear of the head shell (9).

3. The motor cooling device for a lawnmower according to claim 1, characterized in that: The exhaust fan (11) and the air inlet baffle (14) are respectively fixedly connected to the inner wall of the head shell (9), and the filter frame (16) is fixedly connected to the outer wall of the head shell (9).

4. The motor cooling device for a lawnmower according to claim 1, characterized in that: The exhaust fan (11) has louvers at its air outlet.

5. The motor cooling device for a lawnmower according to claim 4, characterized in that: A filter screen (13) is provided between the air outlet of the exhaust fan (11) and the louver.

6. The motor cooling device for a lawnmower according to claim 4, characterized in that: The louvers are fixedly connected to the outer wall of the head shell (9).

7. The motor cooling device for a lawnmower according to claim 1, characterized in that: The filter frame (16) is provided with a pair of slots (161) with one end closed. The open end of the slot (161) is provided with a pair of slots (160). One end of the outer frame of the primary filter element (17) is provided with a pair of elastic clips (171). The side of the elastic clips (171) is provided with a pair of protrusions (170). After the primary filter element (17) is inserted into the slot (161) through the outer frame, the protrusions (170) fall into the slots (160) to be fixed. When it is necessary to disassemble the primary filter element (17), the elastic clips (171) are pressed inward, the protrusions (170) are moved out of the slots (160), and then the elastic clips (171) are pulled outward, so that the primary filter element (17) is moved out of the slots (161).

8. The motor cooling device for a lawnmower according to any one of claims 1 to 7, characterized in that: The head shell (9) is provided with an outer baffle (10) that is adapted to the shape of its front and is fixedly connected to the chassis (1). The outer baffle (10) covers the front of the filter frame (16) and has ventilation holes (100).

9. A lawnmower, characterized in that: It includes a front wheel assembly (2), a rear wheel assembly (3), a grass collection box (6), a handle assembly (7), a control panel (8), and a motor cooling device as described in any one of claims 1 to 8.

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