CN111214172A - Electrostatic discharge structure of dust collector - Google Patents
Electrostatic discharge structure of dust collector Download PDFInfo
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- CN111214172A CN111214172A CN201811634402.1A CN201811634402A CN111214172A CN 111214172 A CN111214172 A CN 111214172A CN 201811634402 A CN201811634402 A CN 201811634402A CN 111214172 A CN111214172 A CN 111214172A
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- rigid section
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/32—Handles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention provides a dust collector, which comprises a cleaning head, a main machine and a hollow rod for connecting the main machine and the cleaning head, wherein the hollow rod comprises a first rigid section and a second rigid section, the lower end of the first rigid section is connected with an airflow outlet of the cleaning head, the upper end of the first rigid section is connected with the second rigid section, and the upper end of the second rigid section is connected with an airflow inlet of the main machine: the static electricity releasing structure comprises a static electricity generating part, a static electricity conducting element and a static electricity releasing part, wherein the static electricity generating part comprises at least partial area of the inner wall of the first rigid section, the static electricity releasing part comprises at least a part of a conducting element forming the outer surface of the handle of the host machine, one end of the static electricity conducting element is electrically connected with the static electricity generating part, and the other end of the static electricity conducting element is electrically connected with the conducting element. An arrangement structure suitable for electrostatic discharge of a dust collector with a hollow rod arranged in sections is provided.
Description
Technical Field
The invention relates to a dust collector, in particular to an electrostatic discharge structure of the dust collector.
Background
At present, a dust collector is a household appliance commonly used in daily life, and in the using process, static electricity can be generated due to friction between a cleaning head and a cleaning surface, friction between dust in a dust collecting cylinder and the inner wall of the dust collecting cylinder and friction between the dust and the inner wall of a pipe fitting connecting the dust collecting cylinder and the cleaning head. The friction between the dust and the inner wall of the dust collection cylinder and between the dust and the inner wall of the pipe fitting can relieve the occurrence of static electricity by replacing materials with insulating materials and improving the surface smoothness of the inner wall. The friction between the cleaning head and the cleaning surface cannot be relieved, the generated static electricity can be released from the ground at any time when the floor is cleaned, but when the wall, the bed surface, the furniture surface and the like are cleaned, the static electricity can be generated after the cleaning head and the cleaning surface are rubbed for a period of time and cannot be released through the ground, the static electricity is accumulated and distributed on the surface of the dust collector, when the static electricity reaches a certain intensity, the circuit board of the dust collector can be damaged, and particularly in the dust collector needing to control the operation mode of the cleaning head, the circuit board or other control elements are also arranged in the cleaning head, so that adverse effects can be caused by the static electricity. On the other hand, when the insulating material contacts the conductor, the electric charge tends to be released from the conductor, and when the metal structures, such as the charging interface and the metal connecting bolt, disposed on the hand-held portion of the vacuum cleaner are inadvertently contacted by the user, the static electricity may be released violently, i.e. the "knock" may occur.
For example, in the prior art, chinese patent CN203000811U discloses an antistatic dust collector air duct, which includes a steel sheet at least exposed outside and electrically connected to a metal extension tube and a steel wire hose, and the steel sheet is used to release static electricity generated by the dust collector. The chinese patent application CN107198494A discloses an anti-static dust collector, in which the part generating static electricity is directly electrically connected to the conductive handle through the power supply circuit, and this structure is very serious and unreasonable, and if the palm is wet, the handle is held or the handle contacts the electricity load, the electricity may leak.
In addition, prior art's electrostatic discharge structure all is to traditional dust catcher, in order to improve the convenience of operation and to correspond different work scenes, has the dust catcher of the length of the pole or the angle that can adjust connection dust catcher main part and cleaning head, and to this kind of product, prior art's electrostatic discharge structure is all not suitable for.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
Disclosure of Invention
In order to solve the above problems, the present invention provides a vacuum cleaner comprising a cleaner head, a main body provided with an airflow generating unit, and a hollow shaft connecting the main body and the cleaner head, wherein the hollow shaft comprises a first rigid section and a second rigid section, the lower end of the first rigid section is connected with an airflow outlet of the cleaner head, the upper end of the first rigid section is connected with a second rigid section, and the upper end of the second rigid section is connected with an airflow inlet of the main body: the static electricity releasing structure comprises a static electricity generating part, a static electricity conducting element and a static electricity releasing part, wherein the static electricity generating part comprises at least partial area of the inner wall of the first rigid section, the static electricity releasing part comprises at least a part of a conducting element forming the outer surface of the handle of the host machine, one end of the static electricity conducting element is electrically connected with the static electricity generating part, and the other end of the static electricity conducting element is electrically connected with the conducting element.
The electrostatic discharge structure suitable for the double-section or multi-section connecting structure is arranged, for the dust collector, the relative position relation between the main machine and the cleaning head is changed by adjusting the first rigid section and the second rigid section, so that the change of the cleaning angle is realized, and the cleaning surface with different fall relative to a human body or the cleaning surface blocked by furniture is cleaned by extending into the lower part of the furniture under the condition that the body is not bent down; the first rigid section and the second rigid section are required to be adjusted to change the relative position relationship between the main machine and the cleaning head so as to reduce the storage space occupied by the whole dust collector and facilitate storage.
In the above-described segmented vacuum cleaner configuration, provision is made for electrostatic charges to be generated at least on the inner wall of the first rigid segment and possibly also by contact of the cleaning head with the cleaning surface and conducted to the first rigid segment when they cannot be released directly from the cleaning surface. Static electricity is transferred along the transfer route of the first rigid section → the static conductive element → the electrically conductive element, the arrangement of the static conductive element being adapted to the segmented hollow rod and the static conductive element bypassing the second rigid section completely, thereby reducing the static charge carried by the second rigid section, which ideally would not carry the static charge.
In a preferred embodiment, the first rigid section is a first rigid section, the second rigid section is a plastic tube, the electrostatic conducting element is a wire, one end of the wire is electrically connected to the first rigid section, and the other end of the wire sequentially extends to the host handle along the side wall of the second rigid section and the routing channel of the side wall of the host and is electrically connected to the conductive element.
The wires are limited to be arranged along the routing channel of the side wall of the host machine by limiting the running direction of the wires along the side wall of the second rigid section, and the wires are limited to be arranged along the handle of the host machine, so that the sections of the wires are relatively independent and are relatively fixed. Firstly, when the relative position of the first rigid section and the second rigid section changes, the whole static electricity conducting circuit is not influenced, so that the static electricity generated by the dust collector can be stably released. In addition, the conducting wire is arranged along a relatively fixed channel, so that the conducting wire cannot swing or shake in the operation process, and the friction and the abrasion of each part are avoided.
The static electricity discharge structure of the traditional dust collector is characterized in that a metal pipe with integral rigidity is connected with a cleaning head and a host machine, the metal pipe is connected with a conductive element arranged at a handle through a lead, a human body is contacted with the conductive element, charges are conducted to the ground through the human body, and static electricity discharge is realized. Providing the second rigid section as an insulating material, such as plastic, serves as an insulator, and the charge on the first rigid section can be substantially discharged only through the conductive elements, such as conductive elements, that are wired to the handle.
When cleaning the floor, the electric charge generated by the friction between the cleaning head and the floor is mostly released directly through the floor, when cleaning a bed sheet or other suspended cleaning surface, the electric charge generated by the friction between the cleaning head and the floor needs to be released quickly, otherwise, for a product with a built-in circuit structure of the cleaning head, the adverse effect is caused, the first rigid section is connected to one end of the cleaning head, and then the first rigid section can quickly transfer the electric charge to the transfer route.
Considering the practical application situation, the distance between the first rigid section and the main machine is not very long, the cleaning angle and the storage need are adjusted, meanwhile, the height that clothes and curtains are easy to contact during the practical operation is considered, the length of the second rigid section is selected according to the proportion, and preferably, the ratio of the length of the second rigid section to the length of the first rigid section is 1: 2 or 1: 1.8.
in a preferred embodiment, the first rigid section and the second rigid section are pivotally connected, one end of the electrostatic conductive element is electrically connected to the first rigid section, and the other end of the electrostatic conductive element passes through the pivotal connection portion and enters the routing channel located on the side wall of the second rigid section.
Specifically, the first rigid section and the second rigid section are pivotally connected by a pivot shaft having an axial opening through which the wire passes at least part of the axial opening of the pivot shaft.
In the dust collector which needs to connect the main machine and the rod structure of the cleaning head and can be bent, the conducting wire needs to be arranged and penetrates through the hinged shaft, the length change caused by rotation is basically avoided, the bending change is very moderate, and the service life of the conducting wire can be ensured.
The side wall of the second rigid section is provided with a routing channel, the wire passes through at least part of the hinging shaft after passing through the routing channel, the direction of the wire can be limited by arranging the routing channel on the side wall of the second rigid section for the wire to pass through, the deflection or torsion of the wire is reduced as much as possible, the service life of the wire is ensured, and the arrangement mode is necessary for the second rigid section which needs to rotate around the pivot frequently. More preferably, a limiting support structure, such as a limiting clamping groove, is arranged in the lead channel to further fix the direction of the lead.
In a preferred embodiment, the inner wall of the first rigid section is coated with an antistatic coating.
In order to prevent corrosion and abrasion of the inner wall of the rigid section, which forms the airflow channel, a coating is usually disposed on the inner wall, preferably, an antistatic coating is selected to form the antistatic coating, and particularly, a coating with a resistance value in a range of 105 Ω -109 Ω in the conductive coating is selected, although the antistatic coating cannot completely eliminate static electricity, the generation of static electricity can be reduced, the electrostatic discharge strength is reduced, and the condition of severe discharge after short-time static electricity accumulation caused by improper operation is avoided.
In a preferred embodiment, the second rigid section is detachably connected with the host, a first contact joint and a second contact joint are respectively arranged at the joint of the second rigid section and the host, and when the second rigid section is connected with the host, the first contact joint and the second contact joint form electrical contact; the static conducting element comprises a first conducting section, two ends of the first conducting section are respectively and electrically connected with the first contact joint and the static generating part, and two ends of the first conducting section are respectively and electrically connected with the second contact joint and the second conducting section of the conducting element.
A contact joint is arranged at the joint of the second rigid section and the host machine, and the first conduction section is limited to be arranged along the direction of the second rigid section; the second conducting section is arranged from the main machine to the handle and is divided into two relatively independent sections. The modular arrangement of the support cleaner allows disassembly and assembly as required and allows the electrostatic conducting element to be integrally formed while assembled.
In a preferred embodiment, at least one of the first contact terminal and the second contact terminal has an elastic sheet structure, and when the second rigid section is connected with the host, the first contact terminal and the second contact terminal are pressed against each other by the elastic sheet structure to form an electrical contact.
The contact joint is a structure for connecting the first conducting section and the second conducting section to form a complete static conducting element, and considering the requirement that the hollow rod and the host machine need to be detachable, an elastic sheet-shaped structure is arranged on one contact joint, so that the contact joint is in electrical connection in a pressing contact mode when connection is formed. When separated, the first conductive segment and the second conductive segment are relatively independent and do not interfere or affect each other.
In a preferred embodiment, the first rigid section is detachably connected with the second rigid section, and a joint of the second rigid section and the first rigid section is provided with a third contact joint; when the second rigid section is connected with the first rigid section, the third contact joint is electrically contacted with the first rigid section.
In the dust collector which needs to connect the main machine and the cleaning head and can be disassembled into a plurality of sections so as to adjust the structural length of the rod or be separately accommodated, a lead forming an electrostatic transmission path for electrostatic discharge is electrically contacted with a first rigid section through a contact joint, when the first rigid section is connected with a second rigid section, the electrostatic transmission path is conducted, and when the first rigid section is disassembled, the electrostatic transmission path is disconnected. And a modular design is formed, and the electrostatic conduction unit can be disassembled and assembled in a simple splicing mode.
In a preferred embodiment, the first rigid section is retractable from the second rigid section; the second rigid section is provided with a fourth contact joint which is always in electrical contact with the first rigid section.
In a vacuum cleaner in which a hollow rod for connecting a main unit and a cleaning head is capable of extending and retracting to adjust the structural length of the rod or to shorten the overall length of the vacuum cleaner for storage, a wire for forming an electrostatic transfer path to discharge static electricity is electrically connected to a first rigid section by a fourth contact joint, for example, a sliding contact joint, and the sliding contact joint is always electrically connected to the first rigid section when the first rigid section extends and retracts in a second rigid section or when the second rigid section extends and retracts in the first rigid section. The normal transfer of electrostatic charge is not affected by the telescoping operation. Of course, the provision of the retractable structure requires the provision of a corresponding locking structure.
In a preferred embodiment, the wall of the host handle is formed with a slot through which the static conducting element passes to connect the conducting element.
The wire slot defining the wire run is formed in the handle of the host machine, and preferably, the wire slot is provided as a closed wire slot, considering that some dust collectors will use the central hole structure of the handle as an air passage, and the wire slot can also protect the second conducting section from air flow disturbance.
In a preferred embodiment, the host comprises a motor, and the host side wall routing channel is parallel or approximately parallel to the axis of the motor.
The heat radiation can not be avoided taking place when the motor uses, considers that host computer inner structure is compacter, and the wire is inevitable to be close to the motor setting, sets up this moment and walks the line passageway parallel with the motor axis, will reduce the wire and receive the length of heat radiation, reduces promptly to be heated, is favorable to prolonging the life of wire.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic layout view of an electrostatic discharge structure of a vacuum cleaner according to an embodiment of the present invention, in which the vacuum cleaner is bent.
Fig. 2 is a schematic layout view of an electrostatic discharge structure of a vacuum cleaner according to an embodiment of the present invention, in which the vacuum cleaner is in an unfolded state.
FIG. 3 is a schematic layout view of an electrostatic discharge structure of a vacuum cleaner according to another embodiment of the present invention, in which the vacuum cleaner is in a separated state.
FIG. 4 is a schematic layout view of an electrostatic discharge structure of a vacuum cleaner according to another embodiment of the present invention, in which the vacuum cleaner is in an uncontracted state.
FIG. 5 is a schematic view showing the arrangement of an electrostatic discharge structure of a vacuum cleaner according to another embodiment of the present invention, in which the vacuum cleaner is in a separated state.
FIG. 6 is a schematic view showing the arrangement of the electrostatic discharge structure of the vacuum cleaner according to another embodiment of the present invention, wherein the vacuum cleaner is in a contracted state.
Detailed Description
In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1 to 6, an electrostatic discharge structure 160/260/360 of a vacuum cleaner is disposed on the vacuum cleaner, the vacuum cleaner includes a cleaning head 120/220/320, a main unit 110/210/310 including an airflow generating unit (e.g., a motor fan), and a hollow rod connected to the main unit 110/210/310, the hollow rod includes a first rigid section 150/250/350 connected to the cleaning head 120/220/320, a second rigid section 130/230/330 connected to the main unit 110/210/310, a first joint 140/240/340 connecting the first rigid section 150/250/350 and the second rigid section 130/230/330, and a second joint connecting the second rigid section 130/230/330 and the main unit 110/210/310; the host 110/210/310 is provided with a handle; the electrostatic discharge structure 160/260/360 includes: a static electricity generating portion, a static electricity conducting element and a static electricity discharging portion, wherein the static electricity generating portion comprises at least a partial region of an inner wall of the first rigid section 150/250/350, the static electricity discharging portion comprises a conductive element 165/265/365 at least partially forming an outer surface of the handle of the mainframe, one end of the static electricity conducting element is electrically connected with the static electricity generating portion, and the other end of the static electricity conducting element is electrically connected with the conductive element 165/265/365.
The electrostatic conductive element is, for example, a wire including: a first conductive segment 161/261/361, wherein one end of the first conductive segment 161/261/361 is electrically connected to the first rigid segment 150/250/350, and the other end is electrically connected to the metal contact 164/264/364 disposed on the second connector; wherein the electrical connection between the first conductive segment 161/261/361 and the first rigid section 150/250/350 can be a fixed connection or a detachable connection;
a second conductive segment 163/263/363, wherein one end of the second conductive segment 163/263/363 is electrically connected to the metal contact 164/264/364, and the other end is electrically connected to a conductive element 165/265/365 disposed on the handle and partially exposed, the conductive element being a metal sheet, wherein the second conductive segment may be fixedly connected or detachably connected to the metal contact 164/264/364.
The electrostatic discharge structure suitable for the double-section or multi-section connecting structure is arranged, for the dust collector, the relative position relation between the main machine and the cleaning head is changed by adjusting the first rigid section and the second rigid section, so that the change of the cleaning angle is realized, and the cleaning surface with different fall relative to a human body or the cleaning surface blocked by furniture is cleaned by extending into the lower part of the furniture under the condition that the body is not bent down; the first rigid section and the second rigid section are required to be adjusted to change the relative position relationship between the main machine and the cleaning head, so that the storage space occupied by the whole dust collector is reduced, and the storage is facilitated. Electrostatic charges are generated on the inner wall of the first rigid section and the cleaning head and are transferred along a transfer route of the first rigid section → the first conductive section → the metal contact → the second conductive section → the conductive element, the metal contact is arranged on a second joint of the second rigid section and the host computer, and the first conductive section is limited to be arranged along the trend of the second rigid section; the second conducting section is arranged from the main machine to the handle and is divided into two relatively independent sections. When the relative position of the first rigid section and the second rigid section changes, the whole static electricity conducting circuit is not influenced, so that static electricity generated by the dust collector can be stably released.
The first rigid section 150/250/350 is a metal tube, the second rigid section 130/230/330 is a plastic tube, the electrostatic conducting element is a wire, one end of the wire is electrically connected to the metal tube, and the other end of the wire sequentially extends to the host handle along the side wall of the plastic tube and the routing channel of the host side wall and is electrically connected to the conductive element.
In the traditional dust collector, the first rigid section which is rigid integrally is connected with the cleaning head and the main machine, the first rigid section is connected with the conductive element arranged at the handle through the lead, and the electric charge is conducted to the ground through the human body by utilizing the contact of the human body with the conductive element, so that the static electricity is released. Providing the second rigid section as an insulating material, such as plastic, wooden material or an insulating composite, can act as an insulator, and the charge on the first rigid section can be substantially discharged only through the conductive element connected to the handle by a wire.
When cleaning the floor, the electric charge generated by the friction between the cleaning head and the floor is mostly released directly through the floor, when cleaning a bed sheet or other suspended cleaning surface, the electric charge generated by the friction between the cleaning head and the floor needs to be released quickly, otherwise, for a product with a built-in circuit structure of the cleaning head, the adverse effect is caused, the first rigid section is connected to one end of the cleaning head, and then the first rigid section can quickly transfer the electric charge to the transfer route.
Preferably, the inner wall of the first rigid section will be provided with an antistatic coating.
Preferably, the ratio of the length of the second rigid section 130/230/330 to the first rigid section 150/250/350 is 1: 1.2-2.2.
Considering the practical application situation, the distance between the first rigid section and the main machine is not very long, the cleaning angle and the storage need are adjusted, meanwhile, the height that clothes and curtains are easy to contact during the practical operation is considered, the length of the second rigid section is selected according to the proportion, and preferably, the ratio of the length of the second rigid section to the length of the first rigid section is 1: 2 or 1: 1.8.
as shown in fig. 1 and 2, in an embodiment of the present invention, the electrostatic discharge structure 160 in the cleaner is arranged as follows: the first joint 140 is connected to the first rigid section 150 and the second rigid section 130 in a hinged manner, the first joint 140 includes a hinged shaft, and the first conductive section 161 passes through at least a portion of the hinged shaft and is electrically connected to the first rigid section 150 through a fixed contact joint 162.
In the dust collector which needs to connect the main machine and the rod structure of the cleaning head and can be bent, the conducting wire needs to be arranged and penetrates through the hinged shaft, the length change caused by rotation is basically avoided, the bending change is very moderate, and the service life of the conducting wire can be ensured.
As a further preference, the side wall of the second rigid section 130 is configured with a wire channel (not shown), through which the first conductive section 161 passes at least partially through the hinge shaft.
The guide line channel is arranged on the side wall of the second rigid section for the first conductive section to pass through, so that the trend of the first conductive section can be limited, the deflection or torsion of the first conductive section is reduced as much as possible, and the service life of the first conductive section is ensured. In a more preferred implementation, a limiting structure is arranged in the wire channel to limit the play or swing of the first conductive section.
In another embodiment of the present invention, as shown in fig. 3 and 4, the electrostatic discharge structure 260 in the vacuum cleaner is arranged such that the first connector 240 is detachably connected to the first rigid section 250 and the second rigid section 230, and the first conductive section 261 is electrically connected to the first rigid section 250 through a contact connector 262 disposed on the first connector 240 and electrically connected to the first rigid section 250.
In a vacuum cleaner in which a rod structure for connecting a main body and a cleaner head is detachable into a plurality of sections so as to adjust the length of the rod structure or to be separately housed, a lead wire for forming an electrostatic discharge path electrically contacts a first rigid section with a contact terminal, and when the first rigid section is connected to a second rigid section via the first terminal, the electrostatic discharge path is turned on, and when the first rigid section is detached, the electrostatic discharge path is turned off.
In a further embodiment of the invention, as shown in figures 5 and 6, the electrostatic discharge arrangement 360 in the cleaner is arranged such that the first rigid section 350 is telescoped from the second rigid section 330 by a first joint 340, the first joint 340 being provided with a locking unit (not shown) to fix the relative telescopic position, determining a stable length of the wand during operation; the first conductive segment 361 is electrically connected to the first rigid segment 350 through a sliding contact joint 362 disposed on the first joint 340 and electrically connected to the first rigid segment 350.
In a dust collector which needs to be connected with a main machine and a cleaning head and can be extended and contracted to adjust the length of the rod structure or shorten the whole length of the dust collector for storage, a lead forming an electrostatic transfer passage for electrostatic discharge is electrically contacted with a first rigid section through a sliding contact joint, and when the first rigid section is extended and contracted in a second rigid section or the second rigid section is extended and contracted in the first rigid section, the sliding contact joint is always electrically contacted with the first rigid section. The normal transfer of electrostatic charge is not affected by the telescoping operation.
In a preferred implementation applicable to the foregoing embodiment, the metal contact 164/264/364 has a resilient plate-like structure, and one end of the second conductive segment 163/263/363 is electrically connected by being pressed against the resilient plate-like structure when the lever is connected to the main unit 110/210/310.
The metal contact is in a structure connecting the first conducting section and the second conducting section, and the metal contact can be fixedly arranged on the first conducting section; and with the second conduction section, considering the demand that pole and host computer need can dismantle, the accessible sets up elasticity lamellar structure at the metal contact that is located the second and connects, forms electrical connection with the mode of contact of pressing when forming the connection. When separated, the first conductive segment and the second conductive segment are relatively independent and do not interfere or affect each other.
Also suitable for use in the preferred implementation of the previous embodiment is a slot (not shown) formed in the wall of the handle through which the second conductive segment 163/263/363 passes to connect the conductive element 165/265/365.
The handle is also adapted to form a slot therein defining the course of the second conductive section, preferably provided as a closed slot, which also protects the second conductive section from airflow disturbances, given that some cleaners will use the central aperture structure of the handle as an air passage.
As a further preference, the conductive element 165/265/365 is embedded in the surface of the handle.
Compared with a handle with conductivity which is directly arranged, the cost can be reduced by only embedding the conductive element, static electricity can be released in real time when the handle is held by a hand in the operation process, the conductive element can completely meet the requirement of static electricity release, and the conductive element is preferably flush with the surface of the handle or slightly higher than the surface of the handle, so that the conductive element is fully contacted with the hand when the handle is held.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered in the protection scope of the present invention.
Claims (10)
1. A vacuum cleaner comprising a cleaner head, a main unit having an airflow generating unit, and a hollow wand connecting the main unit and the cleaner head, the hollow wand comprising a first rigid section and a second rigid section, the first rigid section having a lower end connected to an airflow outlet of the cleaner head and an upper end connected to the second rigid section, the second rigid section having an upper end connected to an airflow inlet of the main unit: the static electricity releasing structure comprises a static electricity generating part, a static electricity conducting element and a static electricity releasing part, wherein the static electricity generating part comprises at least partial area of the inner wall of the first rigid section, the static electricity releasing part comprises at least a part of a conducting element forming the outer surface of the handle of the host machine, one end of the static electricity conducting element is electrically connected with the static electricity generating part, and the other end of the static electricity conducting element is electrically connected with the conducting element.
2. The vacuum cleaner of claim 1, wherein the first rigid section is a metal tube, the second rigid section is a plastic tube, and the static conductive element is a wire having one end electrically connected to the metal tube and the other end extending to the main handle and electrically connected to the conductive element along the side wall of the second rigid section and the side wall of the main body.
3. The vacuum cleaner of claim 1 or 2, wherein the first rigid section and the second rigid section are pivotally connected, and the electrostatic conductive member has one end electrically connected to the first rigid section and another end passing through the pivotal connection to enter the routing channel at the side wall of the second rigid section.
4. The vacuum cleaner of claim 2, wherein an inner wall of the first rigid section is coated with an antistatic coating.
5. The vacuum cleaner of claim 1, wherein the second rigid section is detachably connected to the main body, a first contact connector and a second contact connector are respectively arranged at the joint of the second rigid section and the main body, and when the second rigid section is connected to the main body, the first contact connector and the second contact connector form an electrical contact; the static conducting element comprises a first conducting section, two ends of the first conducting section are respectively and electrically connected with the first contact joint and the static generating part, and two ends of the first conducting section are respectively and electrically connected with the second contact joint and the second conducting section of the conducting element.
6. The vacuum cleaner of claim 5, wherein at least one of the first contact terminal and the second contact terminal has a resilient sheet-like structure, and when the second rigid section is connected to the main body, the first contact terminal and the second contact terminal are pressed against each other by the resilient sheet-like structure to form an electrical contact.
7. A vacuum cleaner according to any one of claims 2, 4, 5 or 6, wherein the first rigid section is detachably connected to a second rigid section, and a third contact joint is provided at the junction of the second rigid section and the first rigid section; when the second rigid section is connected with the first rigid section, the third contact joint is electrically contacted with the first rigid section.
8. A vacuum cleaner according to any one of claims 2, 4, 5 or 6, wherein the first rigid section is telescopic relative to the second rigid section; the second rigid section is provided with a fourth contact joint which is always in electrical contact with the first rigid section.
9. The vacuum cleaner of claim 1, wherein the wall of the host handle is formed with a slot through which the static-electricity conducting element passes to connect the conductive element.
10. The vacuum cleaner of claim 1, wherein the main body includes a motor, and the main body sidewall routing channel is parallel or substantially parallel to an axis of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634402.1A CN111214172A (en) | 2018-12-29 | 2018-12-29 | Electrostatic discharge structure of dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811634402.1A CN111214172A (en) | 2018-12-29 | 2018-12-29 | Electrostatic discharge structure of dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111214172A true CN111214172A (en) | 2020-06-02 |
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ID=70826634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811634402.1A Pending CN111214172A (en) | 2018-12-29 | 2018-12-29 | Electrostatic discharge structure of dust collector |
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| Country | Link |
|---|---|
| CN (1) | CN111214172A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022000840A1 (en) * | 2020-06-29 | 2022-01-06 | 天佑电器（苏州）有限公司 | Vacuum cleaner |
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| CN108937708A (en) * | 2017-05-17 | 2018-12-07 | Seb公司 | Autonomous type dust catcher with pivot rods |
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| CN205612408U (en) * | 2016-03-16 | 2016-10-05 | 科沃斯机器人有限公司 | Prevent static dust catcher |
| CN207024003U (en) * | 2017-03-06 | 2018-02-23 | 苏州普发科技有限公司 | System is eliminated for the electrostatic elimination system of dust catcher and static electricity on human body |
| CN108937708A (en) * | 2017-05-17 | 2018-12-07 | Seb公司 | Autonomous type dust catcher with pivot rods |
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Application publication date: 20200602 |