# US 2025/0081902 A1 · Garden Blower

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- Number: US 2025/0081902 A1
- Document ID: US20250081902A1
- Status: Published application
- Kind: A1
- Application number: 18/955,934
- Filed: 2024-11-21
- Published: 2025-03-13
- Earliest claimed: 2024-03-21
- Assignees: Zhejiang Sunseeker Industrial Co., Ltd.
- Applicants: Zhejiang Sunseeker Industrial Co., Ltd.
- Inventors: Zuojie Xie; Guomin Liu; Qing Zhang; Jiaxuan Wu; Jiangjie Guo; Wenbin Liu; Jie Zhang; Peng Li
- Web page: https://patentgrep.com/patent/US20250081902A1

## CPC

- A01G 20/47: Vacuum or blower devices
- F04D 29/522: {especially adapted for elastic fluid pumps}
- B25F 5/006: {Vibration damping means}
- F04D 25/08: the working fluid being air, e.g. for ventilation
- F04D 29/668: {damping or preventing mechanical vibrations}
- A01G: HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING (picking of fruits, vegetables, hops or the like A01D46/00; propagating unicellular algae C12N1/12)
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)
- B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)}

## Abstract

The present disclosure provides a garden blower, including a housing and a duct assembly, the duct assembly includes an outer duct, a motor fan blade assembly and a guide cone; the outer duct and the rear casing are arranged in such a way that there is an annular interval therebetween, and a plurality of first anti-vibration components are arranged between the outer duct and the holding casing; the first anti-vibration components are close to the motor fan blade assembly, and form a first anti-vibration plane perpendicular to the motor axis of the motor fan blade assembly. This technical solution can suppress the transmission of vibration generated by the rotation of the motor fan blade assembly to other components, especially the holding casing, and effectively avoids the mutual influence between the vibration of the motor fan blade assembly and the disturbance of the rear casing caused by the airflow.

## Claims

### Claim 1

A garden blower, comprising:
a housing having an air inlet end and an air outlet end; and
a duct assembly disposed in the housing and located between the air inlet end and the air outlet end,
wherein the duct assembly comprises an outer duct, a motor fan blade assembly and a guide cone, and the motor fan blade assembly and the guide cone are disposed in the outer duct;
wherein the outer duct and a rear casing of the housing are arranged in such a way that there is an annular interval therebetween, and the outer duct and the rear casing are deliberately set at a safe distance from each other so as to maintain an absolute non-contact state, forming a negative pressure inlet, thereby whether it is rotation vibration of the motor fan blade assembly or disturbance of the rear casing due to the airflow, the outer duct and the rear casing would not contact each other, and thereby no vibration superposition would be generated;
wherein a first anti-vibration component is provided between the outer duct and a holding casing of the housing, so that the outer duct and the holding casing are spaced apart by the first anti-vibration component to maintain a state of non-direct contact;
wherein the first anti-vibration component is close to the motor fan blade assembly and forms a first anti-vibration plane perpendicular to a motor axis of the motor fan blade assembly; the first anti-vibration plane is parallel to a direction of an exciting force of the vibration generated by the motor fan blade assembly, and passes through the motor fan blade assembly and/or a holding handle located above the motor fan blade assembly;
wherein under the rotation of the motor fan blade assembly, an airflow flows at high speed from the air inlet end to the air outlet end, and an accommodating chamber connected to the negative pressure inlet is provided between the rear casing and the holding casing, and a controller is provided in the accommodating chamber;
wherein the rear casing is provided with an installation port, the controller is embedded in the installation port for positioning.

### Claim 2 (depends on 1)

The garden blower according to claim 1, wherein a second anti-vibration component is provided between one end of the outer duct away from the motor fan blade assembly and the holding casing, so that the outer duct and the holding casing are spaced apart by the second anti-vibration component to maintain a state of non-direct contact;
wherein the second anti-vibration component forms a second anti-vibration plane parallel to the first anti-vibration plane, and the guide cone is at least partially located between the first anti-vibration plane and the second anti-vibration plane.

### Claim 3 (depends on 2)

The garden blower according to claim 2, wherein the outer duct comprises a support end located at the air outlet, the support end is configured to support a cone end of the guide cone, the other end of the guide cone is connected to a motor seat, and the second anti-vibration component is sandwiched between an outer wall of the support end and an inner wall of the holding casing.

### Claim 4 (depends on 2)

The garden blower according to claim 2, wherein the second anti-vibration component is close to the guide cone, and the second anti-vibration plane formed by the second anti-vibration component passes through the guide cone and is perpendicular to an extension direction of an axis of the guide cone.

### Claim 5 (depends on 2)

The garden blower according to claim 2, wherein a center of gravity of the motor fan blade assembly is located between the first anti-vibration plane and the second anti-vibration plane.

### Claim 6 (depends on 5)

The garden blower according to claim 5, wherein a distance L2 from the second anti-vibration plane to the center of gravity is greater than a distance L1 from the first anti-vibration plane to the center of gravity.

### Claim 7 (depends on 1)

The garden blower according to claim 1, wherein heat dissipation fins of the controller are exposed to the installation port, and the airflow flowing at high speed from the air inlet end to the air outlet end is suitable for passing over the heat dissipation fins of the controller.

### Claim 8 (depends on 1)

The garden blower according to claim 1, wherein the outer duct comprises a motor fan blade bracket and a connecting pipe connected to each other, the motor fan blade bracket is provided with a cable hole for allowing a power line connecting the controller to a motor to pass through, and an outer wall of the motor fan blade bracket is formed with multiple reinforcing ring ribs, and the multiple reinforcing ring ribs cover a non-connected part of the motor fan blade bracket and the connecting pipe.

### Claim 9

A garden blower, comprising:
a housing having an air inlet end and an air outlet end; and
a main air path component, comprising a duct assembly, and forming a main air path suitable for airflow to flow from the air inlet end to the air outlet end at high speed, an accommodating chamber being formed between the main air path component and the housing, and an electronic device being provided in the accommodating chamber, and the electronic device comprising a controller,
wherein the duct assembly comprises an outer duct and a motor fan blade assembly arranged in the outer duct;
wherein the outer duct and a rear casing of the housing are arranged in such a way that there is an annular interval therebetween, and the outer duct and the rear casing are deliberately set at a safe distance from each other so as to maintain an absolute non-contact state, forming a negative pressure inlet connected to the accommodating chamber between the outer duct and the rear casing, thereby whether it is rotation vibration of the motor fan blade assembly or disturbance of the rear casing due to the airflow, the outer duct and the rear casing would not contact each other, and thereby no vibration superposition would be generated;
wherein the rear casing is provided with an installation port, the controller is embedded in the installation port for positioning;
wherein during operation of the garden blower, the heat emitted by the electronic device flows from the accommodating chamber into the main air path through the negative pressure inlet;
wherein a first anti-vibration component is provided between the outer duct and a holding casing of the housing, so that the outer duct and the holding casing are spaced apart by the first anti-vibration component, and during operation of the garden blower, the outer duct and the holding casing are not in direct contact;
wherein the first anti-vibration component is close to the motor fan blade assembly and forms a first anti-vibration plane perpendicular to a motor axis of the motor fan blade assembly; the first anti-vibration plane is parallel to a direction of an exciting force of the vibration generated by the motor fan blade assembly.

### Claim 10 (depends on 9)

The garden blower according to claim 9, wherein the rear casing constitutes a part of the main air path component.