Handheld vacuum cleaner

Abstract

The utility model provides a hand -held dust collector, including drive module and base. The base is equipped with the accommodation space, the air inlet and the air outlet, and drive module is located in the accommodation space, and the air inlet and the air outlet intercommunication accommodation space. The utility model embodiment provides a hand -held dust collector, through drive module is installed in the accommodation space, the air inlet and the air outlet are designed as intercommunication accommodation space, when drive module starts, can produce negative pressure, the airflow of negative pressure forms and flows into the accommodation space from the air inlet, can carry the heat generated in the process of drive module work after from the air outlet, thus, can effectively reduce the heat generated in the process of drive module work, and then realizes effective cooling to drive module, ensures drive module's continuous efficient operation.

Description

Technical Field

[0001] This utility model relates to the field of vacuuming technology, specifically to a handheld vacuum cleaner. Background Technology

[0002] In the field of vacuum cleaner technology, handheld vacuum cleaners are popular among users due to their compact size, elegant design, and portability. However, the batteries in handheld vacuum cleaners generate heat during charging and discharging, and the electronic components on the circuit board also heat up during operation. Prolonged exposure to high temperatures significantly shortens battery life and accelerates capacity decay, resulting in reduced vacuum cleaner runtime. Overheating can also cause instability or even damage to the electronic components on the circuit board, affecting the overall stability and reliability of the vacuum cleaner. Utility Model Content

[0003] The embodiments of this utility model provide a handheld vacuum cleaner that can improve the technical problem of poor heat dissipation performance of handheld vacuum cleaners during operation in related technologies.

[0004] The handheld vacuum cleaner provided in this application includes:

[0005] Drive module;

[0006] The base has a receiving space, an air inlet and an air outlet. The drive module is located in the receiving space, and the air inlet and the air outlet are connected to the receiving space.

[0007] In one embodiment, the base has two separate ends, with the air inlet located at one end of the base and the air outlet located at the other end of the base.

[0008] In one embodiment, the drive module includes a heat-conducting plate located at one end of the drive module and near the air inlet.

[0009] In one embodiment, the drive module includes a mounting frame, a wind turbine, and a drive assembly.

[0010] The mounting bracket has an assembly space on the side facing the air inlet, the impeller is located in the assembly space, and the drive assembly is connected to the impeller;

[0011] The mounting bracket is connected to the base, and the mounting bracket and the base form a defined space, and the drive assembly is installed in the defined space.

[0012] In one embodiment, the drive assembly includes a motor, a main control module, and a battery. The motor shaft of the motor is connected to the wind turbine, the main control module is electrically connected to the motor, and the battery is electrically connected to the main control module.

[0013] The main control module and the battery are arranged around the periphery of the motor.

[0014] In one embodiment, the motor is connected to the mounting bracket, and the mounting bracket has a plurality of positioning structures on the side opposite to the assembly space. The plurality of positioning structures are arranged around the motor and spaced apart from the motor.

[0015] The battery and the main control module are sandwiched between the motor and the positioning structure.

[0016] In one embodiment, the mounting bracket is further provided with a cutout and an air duct, the heat-conducting plate is in close contact with the motor and covers the cutout, and the motor shaft of the motor passes through the heat-conducting plate and connects to the impeller;

[0017] The air duct is located around the periphery of the mounting frame and extends circumferentially along the mounting frame. The air duct connects the assembly space and the defined space.

[0018] In one embodiment, the battery is provided in at least two, and the at least two batteries are electrically connected.

[0019] In one embodiment, the vacuum cleaner further includes a dust collection cup, which is detachably connected to the base;

[0020] The dust collection cup is equipped with a dust suction port, and the dust suction port is equipped with a dust blocking component.

[0021] In one embodiment, the air inlet is provided with a filter, and / or the base is provided with a snap-fit ​​structure around the edge forming the air outlet.

[0022] The beneficial effects of the embodiments of this utility model are as follows:

[0023] The handheld vacuum cleaner provided in this embodiment of the utility model installs the drive module in the receiving space. The air inlet and air outlet are designed to be connected to the receiving space. When the drive module is started, it can generate negative pressure. The airflow formed by the negative pressure flows into the receiving space from the air inlet. The airflow in the receiving space can carry the heat generated by the drive module during operation and then flow out from the air outlet. Thus, the heat generated by the drive module during operation can be effectively reduced, thereby effectively cooling the drive module and ensuring the continuous and efficient operation of the drive module. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the handheld vacuum cleaner provided in this embodiment of the utility model;

[0026] Figure 2 This is an exploded schematic diagram of the handheld vacuum cleaner provided in this embodiment of the utility model;

[0027] Figure 3 This is a cross-sectional schematic diagram of the handheld vacuum cleaner provided in this embodiment of the utility model;

[0028] Figure 4 This is a half-sectional structural diagram of the base provided in this embodiment of the utility model;

[0029] Figure 5 This is an exploded view of the drive module provided in an embodiment of the present invention;

[0030] Figure 6 This is a structural schematic diagram of one side of the drive module provided in this embodiment of the utility model;

[0031] Figure 7 This is a schematic diagram of the other side of the drive module provided in this embodiment of the utility model;

[0032] Figure 8 This is a schematic diagram of one side structure of the mounting bracket provided in this embodiment of the utility model;

[0033] Figure 9 This is a schematic diagram of the other side of the mounting bracket provided in this embodiment of the utility model;

[0034] Figure 10 This is a schematic diagram of the dust collection cup installed on the base according to an embodiment of the present invention;

[0035] Figure 11 This is a half-sectional schematic diagram of the dust collection cup installed on the base according to an embodiment of the present utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Handheld vacuum cleaner; 100. Limited space;

[0038] 10. Drive module; 11. Mounting bracket; 110. Assembly space; 120. Cutout; 130. Air duct; 111. Base frame; 112. Limiting plate; 113. Snap-fit ​​component; 114. Connecting column; 12. Fan wheel; 13. Motor; 14. Main control module; 141. Main control circuit board; 141a. Control buttons; 142. Battery protection board; 15. Battery; 16. Heat conduction plate; 20. Base; 200. Reception space; 210. Air inlet; 220. Air outlet; 21. Seat; 22. End cap; 23. Filter element; 24. Connecting rib; 25. Snap-fit ​​structure; 26. Anti-slip groove; 30. Dust collection cup; 310. Dust suction port; 31. Dust baffle; 311. Connecting ear; 312. Baffle plate. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0040] In the field of vacuum cleaner technology, handheld vacuum cleaners are popular among users due to their compact size, exquisite design, and portability. However, the batteries in handheld vacuum cleaners generate heat during charging and discharging, and the electronic components on the circuit board also heat up during operation. Prolonged exposure to high temperatures significantly shortens battery life and accelerates capacity decay, leading to reduced vacuum cleaner runtime. Furthermore, overheating can cause instability or even damage to the electronic components on the circuit board, affecting the overall stability and reliability of the vacuum cleaner.

[0041] The embodiments of this utility model provide a handheld vacuum cleaner that can improve the technical problem of poor heat dissipation performance of handheld vacuum cleaners during operation in related technologies.

[0042] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the handheld vacuum cleaner provided in this embodiment of the utility model. Figure 2 This is an exploded schematic diagram of the handheld vacuum cleaner provided in this embodiment of the utility model. Figure 3 This is a cross-sectional schematic diagram of the handheld vacuum cleaner provided in this embodiment of the utility model.

[0043] The handheld vacuum cleaner 1 provided in this application includes a drive module 10 and a base 20.

[0044] Drive module 10 is used to generate negative pressure.

[0045] The base 20 is used to install the drive module 10. Specifically, the base 20 is provided with a receiving space 200, an air inlet 210 and an air outlet 220. The drive module 10 is located in the receiving space 200, and the air inlet 210 and the air outlet 220 are connected to the receiving space 200.

[0046] The handheld vacuum cleaner 1 provided in this embodiment of the utility model has a drive module 10 installed in a receiving space 200. The air inlet 210 and the air outlet 220 are designed to connect the receiving space 200. When the drive module 10 is started, it can generate negative pressure. The airflow formed by the negative pressure flows into the receiving space 200 from the air inlet 210. The heat generated by the drive module 10 during operation can be carried out from the air outlet 220 in the receiving space 200. Thus, the heat generated by the drive module 10 during operation can be effectively reduced, thereby effectively cooling the drive module 10 and ensuring the continuous and efficient operation of the drive module 10.

[0047] Please see Figure 4 , Figure 4 This is a half-sectional structural diagram of the base provided in an embodiment of the present invention. In some embodiments of the present invention, the base 20 can be made of plastic injection molding, or it can be made of a metal material such as aluminum or aluminum alloy with good heat dissipation properties. In one embodiment, the base 20 has two separate ends, with an air inlet 210 located at one end and an air outlet 220 located at the other end. Exemplarily, in some embodiments, the base 20 may include a seat body 21 and an end cap 22. One end of the seat body 21 has an opening, and the other end has an air outlet 220. The end cap 22 has an air inlet 210 and is positioned over the opening of the seat body 21, opposite to the air inlet 210.

[0048] By placing the air inlet 210 and the air outlet 220 opposite to each other at opposite ends of the base 20, and installing the drive module 10 between the two ends of the base 20, the airflow path can be shortened, allowing the airflow to flow quickly from the air inlet 210 to the drive module 10, and then carrying the heat generated by the drive module 10 to flow quickly out from the air outlet 220, reducing the accumulation and stagnation of heat in the housing space 200, thus achieving a highly efficient heat dissipation effect.

[0049] The air inlet 210 is equipped with a filter element 23. The filter element 23 can be a metal mesh, nylon mesh, or other materials. A connecting rib 24 can be provided at the air inlet 210 of the base 20. The connecting rib 24 is connected to the base 20 to form the edge of the air inlet 210, and the filter element 23 is connected to the connecting rib 24. By connecting the filter element 23 at the air inlet 210, the chance of dust entering the receiving space 200 and adhering to the surface of the drive module 10 can be effectively reduced, ensuring that the drive module 10 can operate continuously, stably, and effectively.

[0050] The base 20 has a snap-fit ​​structure 25 around the edge forming the air outlet 220. Exemplarily, in some embodiments, the snap-fit ​​structure 25 can be a plurality of grooves distributed circumferentially along the air outlet 220, or a plurality of protrusions distributed circumferentially along the air outlet 220, or it can be a threaded structure or any other suitable structure for connecting external accessories (e.g., nozzles). The base 20 provided in this embodiment of the present invention, by designing a snap-fit ​​structure 25 at the air outlet 220 for connection with external accessories, enables the handheld vacuum cleaner 1 to be used with external accessories, which is beneficial for improving the cleaning effect and ease of use of the handheld fan.

[0051] Please see Figure 3 , Figure 5 and Figure 6 , Figure 5 This is an exploded view of the drive module provided in an embodiment of the present invention. Figure 6 This is a structural schematic diagram of one side of the drive module provided in this embodiment of the utility model.

[0052] The drive module 10 may include a mounting frame 11, a fan wheel 12, and a drive assembly. The mounting frame 11 has an assembly space 110 on the side facing the air inlet 210. The fan wheel 12 is located in the assembly space 110. The drive assembly is connected to the fan wheel 12. After the drive assembly is started, it can convert electrical energy into mechanical energy to drive the fan wheel 12 to rotate. The mounting frame 11 is connected to the base 20. The mounting frame 11 and the base 20 form a defined space 100. The drive assembly is installed in the defined space 100.

[0053] In this embodiment, the wind turbine 12 and the drive assembly are mounted on the mounting frame 11, which connects the wind turbine 12 and the drive assembly. This improves the assembly compactness between the wind turbine 12 and the drive assembly, as well as the connection reliability between the drive module 10 and the base 20. This ensures that the drive module 10 is tightly connected to the base 20, which helps to improve the stability of the drive module 10 during operation.

[0054] Please see Figures 5 to 7 , Figure 7This is a schematic diagram of the other side of the drive module provided in this embodiment of the utility model. The drive assembly may include a motor 13, a main control module 14, and a battery 15. The motor shaft of the motor 13 is connected to the impeller 12. The main control module 14 is electrically connected to the motor 13, and the battery 15 is electrically connected to the main control module 14. The main control module 14 and the battery 15 are distributed around the periphery of the motor 13. This reduces the size of the drive assembly and makes full use of the limited internal storage space 200 of the base 20, which is beneficial for the compact and miniaturized design of the handheld vacuum cleaner 1. In some embodiments, the main control module 14 may include a main control circuit board 141 and a battery protection board 142. The main control circuit board 141 and the battery protection board 142 are electrically connected, the battery protection board 142 and the battery 15 are electrically connected, and the main control circuit board 141 is electrically connected to the motor 13. The main control circuit board 141 is equipped with control buttons 141a. The base 20 has an opening corresponding to the position of the control buttons 141a, through which the control buttons 141a can be exposed, allowing the user to input control commands to the handheld vacuum cleaner 1. The battery protection board 142 measures the voltage, temperature, and current of the battery 15 and converts the analog signals into digital signals, which are then sent to the main control circuit board 141 for reading. This enables the main control circuit board 141 to control the input and output of the battery 15 to effectively prevent overcurrent and overvoltage of the battery 15.

[0055] In one embodiment, at least two batteries 15 may be provided, and the at least two batteries 15 are electrically connected. In embodiments including two batteries 15, the two batteries 15 may be connected in parallel or in series. In embodiments including three or more batteries 15, they may also be connected in a mixed configuration (i.e., a combination of series and parallel connections). It should be noted that in some embodiments of this invention, only one battery 15 may be provided. This invention does not limit the number of batteries 15 used or the connection type between the batteries 15; the specific number and connection type can be adaptively designed and adjusted according to specific implementation conditions.

[0056] In one embodiment, the drive module 10 may further include a heat-conducting plate 16, which is located at one end of the drive module 10 and near the air inlet 210. In some embodiments, the heat-conducting plate may be made of a material with good thermal conductivity, such as, but not limited to, aluminum or aluminum alloy, copper or copper alloy. The heat-conducting plate 16 may be attached to the surface of the drive module 10 to conduct the heat generated during the operation of the drive module 10. Furthermore, the heat-conducting plate 16 may be located near the air inlet 210, allowing the airflow flowing in from the air inlet 210 to flow along a shorter path to the heat-conducting plate 16, thereby dissipating heat from the drive module 10 in a timely manner.

[0057] Please see Figure 6 and Figure 8 , Figure 8This is a schematic diagram of one side of the mounting bracket provided in an embodiment of the present utility model. In some embodiments, the mounting bracket 11 is further provided with a cutout 120 and an air duct 130. The heat-conducting plate 16 can be closely attached to the motor 13 and cover the cutout 120. The motor shaft of the motor 13 passes through the heat-conducting plate 16 and connects to the impeller 12. The air duct 130 is located around the periphery of the mounting bracket 11 and extends circumferentially along the mounting bracket 11. The air duct 130 connects the assembly space 110 and the limiting space 100.

[0058] By covering the heat-conducting plate 16 with the cutout 120, the assembly space 110 and the confined space 100 are connected through the air duct 130. This design allows the cooling airflow to be pressurized by the impeller 12 in the assembly space 110 and then flow to the confined space 100 through the air duct 130. This reduces the amount of cooling airflow entering the assembly space 110 from the air inlet 210 and then flowing to the confined space 100 through the cutout 120, thus improving the heat dissipation effect.

[0059] Please refer to the figure. Figure 7 and 9 , Figure 9 This is a schematic diagram of the other side of the mounting bracket provided in an embodiment of the present utility model. In some embodiments, the mounting bracket 11 has multiple positioning structures on the side opposite to the assembly space 110, the motor 13 is connected to the mounting bracket 11, the multiple positioning structures are arranged around the motor 13 and spaced apart from the motor 13, and the battery 15 and the main control module 14 are sandwiched between the motor 13 and the positioning structures.

[0060] For example, the mounting frame 11 may include a base frame 111, one end of the motor 13 is connected to the base frame 111, and a positioning structure is connected to one side of the base frame 111, extending from the base frame 111 in a direction away from the assembly space 110. In some embodiments, the positioning structure may include multiple limiting plates 112, which surround the motor 13 and are spaced apart from it. One, two, or more batteries 15 and the main control module 14 are sandwiched between the motor 13 and the limiting plates 112. In some embodiments, the protrusion structure may also include two spaced-apart snap-fit ​​members 113, each snap-fit ​​member 113 having a snap-fit ​​groove. The snap-fit ​​grooves of the two snap-fit ​​members 113 are arranged opposite to each other, and the two sides of the main control module 14 are snapped into the two snap-fit ​​grooves.

[0061] In one embodiment, the mounting bracket 11 is further provided with a connecting structure on the side opposite to the assembly space 110, and the connecting structure is screwed to the base 20. In some embodiments, the connecting structure 25 may be a connecting post 114, which extends from the base 111 in a direction opposite to the air inlet 210. The connecting post 114 may have a threaded hole so that the mounting bracket 11 can be screwed to the base 20.

[0062] It can be understood that the connection structure can also be a snap-fit ​​protrusion (not shown in the figure), and the corresponding base 20 is provided with a matching snap-fit ​​groove (not shown in the figure). When the mounting bracket 11 is assembled on the base 20, the snap-fit ​​protrusion can be engaged in the snap-fit ​​groove, thereby realizing the detachable assembly connection between the mounting bracket 11 and the base 20.

[0063] In this embodiment, the motor 13 is connected to the mounting bracket 11, which has multiple positioning structures distributed around the motor 13. This allows the battery 15 and the main control module 14 to be sandwiched between the motor 13 and the multiple positioning structures. The advantages of this design are that it can achieve a reliable connection between the main control module 14 and the motor 13 within the base 20, reduce the assembly interval between the battery 15, the main control module 14 and the motor 13, make full use of the internal space of the base 20, improve drop resistance, and reduce the need for corresponding mating structures for assembling the battery 15 and the main control module 14 in the base 20, thus simplifying the design of the base 20.

[0064] Please see Figure 10 and Figure 11 , Figure 10 This is a schematic diagram of the dust collection cup installed on the base according to an embodiment of the present invention. Figure 11 This is a half-sectional view of the dust collection cup installed on the base according to an embodiment of the present invention. The handheld vacuum cleaner 1 may also include a dust collection cup 30, which is detachably connected to the base 20. Exemplarily, the dust collection cup 30 and the base 20 may each have a protrusion and a groove, and the dust collection cup 30 and the base 20 can be detachably connected through the cooperation between the protrusion and the groove, so as to facilitate cleaning of the dust collection cup 30. It is understood that the dust collection cup 30 and the base 20 may also be detachably connected through other structures (such as threads), and this embodiment does not limit the specific implementation of the detachable structure of the dust collection cup 30 and the base 20.

[0065] The dust cup 30 is provided with a suction port 310, and the suction port 310 is provided with a dust blocking component 31. The dust blocking component 31 can reduce the amount of dust or other debris that pours out of the suction port 310 during the vacuuming process. In some embodiments, the dust blocking component 31 can be a membrane structure made of silicone or rubber. The dust blocking component 31 includes an integrally formed connecting ear 311 and a baffle 312. The connecting ear 311 is connected to the dust cup 30. When vacuuming is not required, the baffle 312 can remain in place to cover the suction port 310. When the handheld vacuum cleaner 1 is started, the baffle 312 can open under the action of negative pressure, allowing dust to enter the dust cup 30.

[0066] The base 20 may have anti-slip grooves on its peripheral side away from the receiving space 200. These anti-slip grooves can increase the friction between the base 20 and the user's hand, thereby facilitating the disassembly of the base 20 and the dust cup 30.

[0067] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A hand vacuum cleaner characterized in that, include: Drive module; The base has a receiving space, an air inlet and an air outlet. The drive module is located in the receiving space, and the air inlet and the air outlet are connected to the receiving space.

2. The handheld vacuum cleaner according to claim 1, characterized in that, The base has two separate ends, with the air inlet located at one end of the base and the air outlet located at the other end of the base.

3. The handheld vacuum cleaner according to claim 1, characterized in that, The drive module includes a heat-conducting plate, which is located at one end of the drive module and close to the air inlet.

4. The handheld vacuum cleaner according to claim 3, characterized in that, The drive module also includes a mounting bracket, a fan wheel, and drive components. The mounting bracket has an assembly space on the side facing the air inlet, the impeller is located in the assembly space, and the drive assembly is connected to the impeller; The mounting bracket is connected to the base, and the mounting bracket and the base form a defined space, and the drive assembly is installed in the defined space.

5. The handheld vacuum cleaner according to claim 4, characterized in that, The drive assembly includes a motor, a main control module, and a battery. The motor shaft of the motor is connected to the wind turbine, the main control module is electrically connected to the motor, and the battery is electrically connected to the main control module. The main control module and the battery are arranged around the periphery of the motor.

6. The handheld vacuum cleaner according to claim 5, characterized in that, The motor is connected to the mounting frame, and the mounting frame has multiple positioning structures on the side away from the assembly space. The multiple positioning structures are arranged around the motor and spaced apart from the motor. The battery and the main control module are sandwiched between the motor and the positioning structure.

7. The handheld vacuum cleaner according to claim 5 or 6, characterized in that, The mounting bracket is also provided with a cutout and an air duct. The heat-conducting plate is in close contact with the motor and covers the cutout. The motor shaft of the motor passes through the heat-conducting plate and connects to the impeller. The air duct is located around the periphery of the mounting frame and extends circumferentially along the mounting frame. The air duct connects the assembly space and the defined space.

8. The handheld vacuum cleaner according to claim 5 or 6, characterized in that, The battery is provided in at least two parts, and the at least two batteries are electrically connected.

9. The handheld vacuum cleaner according to any one of claims 1 to 6, characterized in that, The vacuum cleaner also includes a dust collection cup, which is detachably connected to the base; The dust collection cup is equipped with a dust suction port, and the dust suction port is equipped with a dust blocking component.

10. The handheld vacuum cleaner according to any one of claims 1 to 6, characterized in that, The air inlet is provided with a filter element, and / or the base is provided with a snap-fit ​​structure around the edge forming the air outlet.

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