Matrix fan for vacuum cleaners

Abstract

The application discloses a kind of matrix fan for dust collector, including battery assembly and fan assembly, fan assembly includes fan shell, one end of fan shell is fixedly connected on battery assembly, multiple parallelly arranged motors are arranged in the side of fan shell close to battery assembly, all motors are respectively electrically connected with battery assembly, the end of each motor away from battery assembly corresponds to install a fan, the end of motor shell close to fan is equipped with air inlet pipe;Multiple fans and fans are connected in parallel in the device, the matrix distribution of fan is driven, to increase the air volume of combined fan, so as to improve the size of dust suction power, when the suction is required to be larger, more quantity of fan is opened, so that more fans work simultaneously, to increase the air volume;The device does not need to set up boost circuit as in prior art, also does not need to design large diameter fan alone, but only multiple small fans are connected in parallel to achieve the purpose of changing suction size.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust collectors, in particular to a matrix type fan for a dust collector. BACKGROUND

[0002] There are various ways to increase the suction force of conventional dust collectors, and the commonly used ways are to increase the fan diameter, increase the contact area of the fan blade and the gas, or increase the power of the motor, etc. These ways will inevitably need to be boosted, and the use of a boost circuit in the circuit will result in an increase in the number of electrical components in the circuit, excessive line loss, and the separate design of the fan will greatly increase the manufacturing cost.

[0003] To solve the above technical problems, the present application provides a low-voltage and large-current output battery to drive a combined fan to work to increase the air volume, thereby improving the size of the dust suction force, without the need to set a boost circuit or separately design a large-diameter fan, only a plurality of small fans in parallel are needed. SUMMARY

[0004] To solve the above technical problems, the present application provides a matrix type fan for a dust collector.

[0005] To solve the above technical problems, the technical solution of the present application is: a matrix type fan for a dust collector, comprising a battery assembly and a fan assembly, the fan assembly comprises a fan housing, one end of the fan housing is fixedly connected to the battery assembly, a plurality of motors arranged in parallel are arranged on one side of the fan housing close to the battery assembly, all the motors are electrically connected to the battery assembly, and each motor is correspondingly provided with a fan at the end away from the battery assembly, and an air inlet pipe is installed at the end of the motor housing close to the fan.

[0006] As a preferred technical solution, all the motors are electrically connected to the battery assembly by a circuit board structure.

[0007] As a preferred technical solution, the circuit board structure comprises a circuit board body, a positive copper bar and a negative copper bar are arranged on the circuit board body, a plurality of motor limiting holes corresponding to each motor are further arranged on the circuit board body, motor positive connection ports and motor negative connection ports are arranged on both sides of each motor limiting hole, each motor positive connection port is arranged on the positive copper bar, each motor negative connection port is arranged on the negative copper bar, and a battery core connection port connected to the battery assembly is further arranged at the center of the circuit board body.

[0008] As a preferred technical solution, a plurality of circuit board through holes are further arranged on the circuit board body, and each circuit board through hole corresponds to one motor.

[0009] As a preferred technical scheme, the motor is provided with a motor limiting column matched with the motor limiting hole near one end of the circuit board body, the motor limiting column is provided with a motor positive terminal and a motor negative terminal on two sides respectively, the motor positive terminal is matched with the motor positive terminal port correspondingly, and the motor negative terminal is matched with the motor negative terminal port correspondingly.

[0010] As a preferred technical scheme, the fan shell comprises a motor compartment near one side of the battery assembly and a fan compartment away from the battery assembly, the motor compartment is provided with a plurality of motor limiting cavities for placing the motor, the fan compartment is provided with a plurality of fan containing cavities for placing the fan, and the air inlet pipe is connected to one end of the fan compartment.

[0011] As a preferred technical scheme, the motor compartment surface is provided with a plurality of motor heat dissipation openings corresponding to each motor limiting cavity respectively, the fan compartment surface is provided with a plurality of fan side air inlets corresponding to each fan containing cavity respectively, and each fan compartment is provided with a plurality of fan air inlets corresponding to each fan respectively near one side of the air inlet pipe.

[0012] As a preferred technical scheme, the battery assembly comprises a battery shell, the battery shell is provided with a circuit board base near one end of the fan assembly, the circuit board structure is installed in the circuit board base, and one end of the fan shell is fixed on the circuit board base.

[0013] As a preferred technical scheme, the circuit board base is provided with a base through hole communicated with the inside of the battery shell, and the side wall of the battery shell is provided with an air inlet through hole.

[0014] As a preferred technical scheme, each fan is distributed circumferentially or in rows.

[0015] The beneficial effect of the present application is that the device connects multiple fans and fans in parallel, drives the combined fan to work through the matrix distribution of the fan to increase the air volume, thereby improving the size of the dust suction force, when the suction force is required to be large, more number of fans are started to make more fans work at the same time to increase the air volume, when the suction force is required to be small, less number of fans are started to reduce the air volume; the device does not need to set a voltage boosting circuit as in the prior art, nor does it need to design a large diameter fan separately, but only connects multiple small fans in parallel to achieve the purpose of changing the size of the suction force. BRIEF DESCRIPTION OF DRAWINGS

[0016] The following drawings are only intended to illustrate and explain the present application, and do not limit the scope of the present application. Among them:

[0017] Figure 1 is a structural schematic diagram of the battery shell of the embodiment of the present application;

[0018] Figure 2 is an explosion schematic diagram of the embodiment of the present application;

[0019] Figure 3 is a structural schematic diagram of the battery shell of the embodiment of the present application;

[0020] Figure 4 is a structural schematic diagram of the circuit board structure of the embodiment of the present application;

[0021] Figure 5 is a structural schematic diagram of the motor and fan of the embodiment of the present application;

[0022] Figure 6 is a structural schematic diagram of the fan shell of the embodiment of the present application;

[0023] Figure 7 is a structural schematic diagram of the fan shell of the embodiment of the present application from another angle.

[0024] In the figure: 1-battery shell; 2-circuit board base; 3-base through hole; 4-air inlet through hole; 5-fan shell; 6-motor; 7-fan; 8-air inlet pipe; 9-circuit board body; 10-positive copper bar; 11-negative copper bar; 12-motor limiting hole; 13-motor positive terminal port; 14-motor negative terminal port; 15-battery terminal port; 16-circuit board through hole; 17-motor limiting column; 18-motor positive terminal; 19-motor negative terminal; 20-motor limiting cavity; 21-fan containing cavity; 22-motor heat dissipation port; 23-fan side air port; 24-fan air inlet. DETAILED DESCRIPTION

[0025] The application will be further described below in conjunction with the drawings and examples. In the following detailed description, certain exemplary embodiments of the application are described by way of illustration only. It will be apparent to those of ordinary skill in the art that the embodiments described can be modified in various different ways without departing from the spirit and scope of the application. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0026] As shown in Figure 1 and Figure 2 , the matrix fan for a vacuum cleaner comprises a battery assembly and a fan assembly, and the battery assembly provides power supply for the fan assembly.

[0027] Referring to Figure 3 , the battery assembly comprises a battery shell 1, a battery core is installed in the battery shell 1, and a circuit board base 2 is arranged at one end of the battery shell 1 close to the fan assembly, a limiting groove for placing a circuit board structure is arranged in the circuit board base 2, the circuit board structure is installed in the limiting groove of the circuit board base 2, a connecting boss is arranged on the outer periphery of the circuit board base 2, an extension boss corresponding to the connecting boss is arranged on the outer periphery of the fan shell, and the extension boss and the connecting boss are fixedly connected through a bolt, so that one end of the fan shell is fixed on the circuit board base 2.

[0028] Referring to Figure 3 , the circuit board base 2 is provided with a base through hole 3 communicating with the inside of the battery shell 1, and an air inlet through hole 4 is arranged on the side wall of the battery shell 1.

[0029] Referring to Figure 5 to Figure 7The fan assembly comprises a fan shell 5, one end of the fan shell 5 is fixedly connected to the battery assembly, a plurality of motors 6 arranged in parallel are arranged in the fan shell 5 close to one side of the battery assembly, and all the motors 6 are electrically connected to the battery assembly in a circuit board structure. Each motor 6 is correspondingly provided with a fan 7 away from the battery assembly, and an air inlet pipe 8 is installed on one end of the motor 6 close to the fan 7. In this embodiment, the motor 6 and the fan 7 are provided with three, and are uniformly distributed in a circumferential direction; of course, the motor 6 can also be provided with four, and four fans 7 are correspondingly provided; and a plurality of fans can also be arranged in a row.

[0030] Referring to Figure 4 The circuit board structure comprises a circuit board body 9, the circuit board body 9 is provided with a positive copper bar 10 and a negative copper bar 11, and a plurality of motor limiting holes 12 corresponding to the motors 6 are further arranged on the circuit board body 9. Each motor limiting hole 12 is provided with a motor positive connection port 13 and a motor negative connection port 14 on both sides, respectively, each motor positive connection port 13 is arranged on the positive copper bar 10, each motor negative connection port 14 is arranged on the negative copper bar 11, and a battery core connection port 15 connected to the battery core is further arranged at the center of the circuit board body 9. When the circuit board body 9 is connected, the battery core connection port 15 is passed through the battery core connection port 15, and the electrical connection between the battery core and the circuit board is completed.

[0031] Referring to Figure 4 A plurality of circuit board through holes 16 are further arranged on the circuit board body 9, and each circuit board through hole 16 corresponds to the motor 6.

[0032] Referring to Figure 5 The motor 6 is provided with a motor limiting column 17 matched with the motor limiting hole 12 close to one end of the circuit board body 9, motor positive connection terminals 18 and motor negative connection terminals 19 are arranged on both sides of the motor limiting column 17, respectively, the motor positive connection terminals 18 are matched with the motor positive connection ports 13, and the motor negative connection terminals 19 are matched with the motor negative connection ports 14. When the circuit board body 9 is connected, the motor limiting column 17 passes through the motor limiting hole 12 to play a positioning role, the motor positive connection terminals 18 pass through the motor positive connection ports 13 on the circuit board body 9 and extend to the inside of the battery shell 1, the motor negative connection terminals 19 pass through the motor negative connection ports 14 on the circuit board body 9 and extend to the inside of the battery shell 1, and the connection between the circuit board body 9 and the motor 6 is completed.

[0033] Referring to Figure 6 andFigure 7 The fan housing 5 includes a motor 6 compartment near one side of the battery assembly and a fan 7 compartment away from the other side of the battery assembly. A plurality of motor limiting cavities 20 for placing the motor 6 are arranged in the motor 6 compartment. A motor limiting groove for clamping the motor 6 is arranged in the motor limiting cavity 20, so that the motor 6 can be limited to avoid displacement and shaking during use. A plurality of fan containing cavities 21 for placing the fan 7 are arranged in the fan 7 compartment. The air inlet pipe 8 is connected to one end of the fan 7 compartment.

[0034] Referring to Figure 6 and Figure 7 A plurality of motor heat dissipation openings 22 corresponding to each motor limiting cavity 20 are arranged on the surface of the motor 6 compartment. A plurality of fan side air inlets 23 corresponding to each fan containing cavity 21 are arranged on the surface of the fan 7 compartment. The outlet of the fan side air inlet 23 forms a negative pressure area on the surface of the fan housing 5. The motor heat dissipation opening 22 is arranged near the fan side air inlet 23 and communicates with the negative pressure area. Each fan 7 compartment is provided with a plurality of fan air inlets 24 corresponding to each fan 7 near the air inlet pipe 8.

[0035] A screen is arranged inside the air inlet pipe 8 opposite each fan 7, which can be used to intercept dust particles and the like in the air suction chamber.

[0036] The device connects a plurality of fans and fans 7 in parallel. The matrix distribution of the fans drives the combined fan to work to increase the air volume, thereby improving the size of the dust suction force. When a larger suction force is needed, more fans are turned on to make more fans 7 work at the same time to increase the air volume. When a smaller suction force is needed, fewer fans can be turned on to reduce the air volume. The device does not need to set a voltage boosting circuit as in the prior art, nor does it need to design a large-diameter fan 7 separately. Instead, a plurality of small fans 7 are connected in parallel to achieve the purpose of changing the size of the suction force.

[0037] The plurality of fans of the device are connected in parallel and are respectively plugged and electrically connected to the circuit board. The battery cell is also electrically connected to the circuit board. The circuit connection between the battery cell and the plurality of motors 6 is completed through the circuit board, so that wires are no longer needed for connection. This not only simplifies the internal circuit structure of the electric appliance, but also avoids the accumulation of wires inside affecting heat dissipation. In addition, this circuit board connection method of the device is convenient for assembly and can improve the assembly efficiency.

[0038] The heat dissipation principle of the device is: when the fan 7 in the fan 7 warehouse rotates, the wind is sucked into the fan 7 through the fan inlet 24, the wind sucked into the fan 7 is thrown out from the fan side air outlet 23, and a negative pressure area is formed at the fan side air outlet 23 and the motor heat dissipation port 22; at the same time, the air outside will also enter into the battery shell 1 through the air inlet hole 4, then enter into the motor 6 warehouse through the base through hole 3 and the circuit board through hole 16, then flow through the motor 6, carry the heat around the motor 6, and finally discharge through the motor heat dissipation port 22, the gas outside flows through the battery assembly, the circuit board body 9 and the inside of the motor 6, which can better carry away the heat, the device utilizes the outlet of the fan 7 to form a negative pressure area on the surface of the fan housing 5, and utilizes the negative pressure principle of the negative pressure area to make the gas carry heat and discharge, which is simple in structure and reasonable in design.

[0039] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A matrix fan for a vacuum cleaner comprising a battery assembly and a fan assembly, characterised in that: The fan assembly comprises a fan shell, one end of the fan shell is fixedly connected to the battery assembly, a plurality of motors arranged in parallel are arranged in the fan shell close to the battery assembly, all the motors are respectively electrically connected to the battery assembly, one end of each motor away from the battery assembly is correspondingly provided with a fan, and one end of the motor shell close to the fan is provided with an air inlet pipe; The fan shell comprises a motor compartment close to the battery assembly and a fan compartment away from the battery assembly, a plurality of motor limiting cavities for placing the motors are arranged in the motor compartment, and a plurality of fan containing cavities for placing the fans are arranged in the fan compartment, and the air inlet pipe is connected to one end of the fan compartment. The surface of the motor compartment is provided with a plurality of motor heat dissipation openings corresponding to the motor limiting cavities, the surface of the fan compartment is provided with a plurality of fan side air inlets corresponding to the fan containing cavities, and the fan compartment is provided with a plurality of fan air inlets corresponding to the fans close to the air inlet pipe.

2. The matrix fan for a vacuum cleaner as defined in claim 1, wherein: All the motors are electrically connected to the battery assembly by a circuit board structure.

3. The matrix fan for a vacuum cleaner as defined in claim 2, wherein: The circuit board structure comprises a circuit board body, the circuit board body is provided with a positive copper bar and a negative copper bar, a plurality of motor limiting holes corresponding to the motors are arranged on the circuit board body, motor positive connection ports and motor negative connection ports are arranged on both sides of each motor limiting hole, the motor positive connection ports are arranged on the positive copper bar, the motor negative connection ports are arranged on the negative copper bar, and a battery core connection port connected to the battery assembly is arranged at the center of the circuit board body.

4. The matrix fan for a vacuum cleaner as defined in claim 3, wherein: A plurality of circuit board through holes corresponding to the motors are arranged on the circuit board body.

5. The matrix fan for a vacuum cleaner as defined in claim 3, wherein: The motor is provided with a motor limiting column matched with the motor limiting hole close to the circuit board body, motor positive connection terminals and motor negative connection terminals are arranged on both sides of the motor limiting column, the motor positive connection terminals are matched with the motor positive connection ports, and the motor negative connection terminals are matched with the motor negative connection ports.

6. The matrix fan for a vacuum cleaner as defined in claim 2, wherein: The battery assembly comprises a battery shell, a battery core is arranged in the battery shell, a circuit board base is arranged on one end of the battery shell close to the fan assembly, the circuit board structure is arranged in the circuit board base, and one end of the fan shell is fixed to the circuit board base.

7. The matrix fan for a vacuum cleaner as defined in claim 6, wherein: The circuit board base is provided with a base through hole communicating with the inside of the battery shell, and the sidewall of the battery shell is provided with an air inlet through hole.

8. The matrix fan for a vacuum cleaner as set forth in any one of claims 1 to 7, wherein: Each fan is distributed circumferentially or in a row.

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