Cable for electrical equipment, plug assembly and electrical equipment

Abstract

The utility model provides a cable for electrical equipment. The cable comprises an outer coating layer; the current-carrying wire is arranged in the outer coating layer, one end of the current-carrying wire is coupled to a plug so as to receive electric power, and the other end of the current-carrying wire is coupled to a circuit board assembly in the electrical equipment so as to provide the electric power to the electrical equipment; the filtering unit is arranged in the outer coating layer and is configured to filter clutters generated in the operation of the electrical equipment; and the signal line is arranged in the outer coating layer, one end of the signal line is coupled to the filtering unit, and the other end of the signal line is coupled to the circuit board assembly in the electrical equipment. According to the utility model, the cable not only is used for transmitting electric power, but also has partial functions in the equipment, thereby reducing the weight of the equipment body and meeting the requirements of users on the use comfort and portability of the equipment.

Description

Technical Field

[0001] This utility model relates to the electrical field, and in particular to a cable for electrical equipment, a plug assembly including the cable, and an electrical equipment including the plug assembly. Background Technology

[0002] With the development of modern electrical technology, consumers have placed higher demands on the functionality, convenience, and comfort of household appliances. The functions of electrical appliances are constantly increasing, often relying on complex circuit systems and various electronic components. However, this leads to an increase in the weight and size of the devices, and the weight directly affects the user's operating experience. Especially for devices that require prolonged handheld operation, the heavier the device, the lower the user comfort.

[0003] In existing electrical appliance designs, the size and weight of internal electronic components limit the ability to achieve lightweight equipment. Current designs often concentrate all electronic components within the main unit, increasing its size and weight and failing to meet modern users' demands for portable and easy-to-operate devices. Filtering units, essential for filtering noise during operation, are crucial in electrical circuit design; however, the filter capacitors used are typically large, adding weight and space to the internal components, thus restricting the layout of other parts.

[0004] Cables are core components for transmitting electricity in electrical equipment. Traditional cables are mostly two- or three-core wires used to transmit AC or DC power and ensure the normal operation of equipment. However, existing cables are limited to the function of power transmission and have not yet fully realized their potential as load-bearing components. Utility Model Content

[0005] To address the aforementioned problems and shortcomings, the purpose of this invention is to provide a composite cable that can both transmit power and carry some functional modules and components within a device. Without compromising the device's functionality, some functional components are transferred to the cable, thereby freeing up internal space, reducing the device's weight, and improving user comfort.

[0006] Based on this, according to one embodiment of the present invention, a cable for an electrical device is provided, comprising: an outer sheath; a current-carrying wire disposed within the outer sheath, one end of which is coupled to a plug to receive electrical power, and the other end of which is coupled to a circuit board assembly in the electrical device to provide the electrical power to the electrical device; a filtering unit disposed within the outer sheath and configured to filter out noise generated during the operation of the electrical device; and a signal line disposed within the outer sheath, one end of which is coupled to the filtering unit and the other end of which is coupled to the circuit board assembly in the electrical device.

[0007] In one embodiment, the number of signal lines is two, wherein the two signal lines are twisted together in an alternating spiral pattern.

[0008] In one embodiment, the cable further includes a filter unit housing disposed within the outer sheath and configured to house the filter unit.

[0009] In one embodiment, the housing of the filter unit is made of plastic.

[0010] In one embodiment, the filtering unit includes a filtering capacitor.

[0011] In one embodiment, the cable further includes a shielding layer disposed within the outer sheath and configured to cover the current-carrying lines, the signal lines, and the filtering unit.

[0012] In one embodiment, the cable further includes an insulation layer disposed between the shielding layer and the outer sheath.

[0013] In one embodiment, the cable further includes a drain line disposed adjacent to the shielding layer and configured to drain current from the shielding layer.

[0014] According to another embodiment of the present invention, a plug assembly is provided, comprising: a plug; and a cable according to any of the preceding embodiments, coupled to the plug.

[0015] According to another embodiment of the present invention, an electrical device is provided, comprising: an electrical device body; and a plug assembly as described above, which is coupled to the electrical device body.

[0016] The cables in various embodiments of this utility model are equipped with filtering units to provide filtering functions for electrical equipment, which can reduce the weight and volume of the main body of the electrical equipment, thereby increasing user comfort. Attached Figure Description

[0017] Other features and advantages of this utility model will be better understood through the following preferred embodiments described in detail with reference to the accompanying drawings, wherein:

[0018] Figure 1 This is a schematic diagram of the cable connection structure for a hair dryer according to one embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional structural diagram of a cable for a hair dryer according to an embodiment of the present invention.

[0020] Figure 3 This is a side view of a cable for a hair dryer according to one embodiment of the present invention. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of this utility model with reference to the accompanying drawings is intended to explain the overall inventive concept of this utility model and should not be construed as a limitation thereof.

[0022] The terms “comprising,” “including,” and similar terms as used herein should be understood as open-ended terms, meaning “including / including but not limited to,” implying that other content may also be included. The term “based on” means “at least partially based on.” The term “one embodiment” means “at least one embodiment”; the term “another embodiment” means “at least one additional embodiment,” and so on.

[0023] The cables according to various embodiments of this utility model are applicable to connecting any suitable electrical device, such as a hair dryer, a handheld electric blender, and a vacuum cleaner. The following description uses an exemplary cable of this utility model applied to a hair dryer as an example.

[0024] Figure 1 A schematic diagram of the cable connection structure for a hair dryer according to an embodiment of the present invention is shown. (Refer to...) Figure 1 The hair dryer 1 includes a cable 10, a plug 20, and a hair dryer body 30. The cable 10 and the plug 20 constitute a plug assembly. One end of the cable 10 is coupled to the plug 20 to receive electrical power. The other end of the cable 10 is coupled to the hair dryer body 30, for example, to a circuit board assembly 301 in the hair dryer body 30, to provide the received electrical power to the hair dryer body 30 so that the hair dryer body 30 can operate normally.

[0025] Figure 2 A cross-sectional structural schematic diagram of a cable for a hair dryer according to an embodiment of the present invention is shown. Figure 3A side view of a cable for a hair dryer according to an embodiment of the present invention is shown.

[0026] Reference Figures 1 to 3 The cable 10 includes a current-carrying wire 11, a signal wire 12, a filter unit 13, and an outer sheath 14. One end of the current-carrying wire 11 can be coupled to the plug 20, and the other end can be coupled to the circuit board assembly 301 in the hair dryer body 30. In one embodiment, the number of current-carrying wires 11 can be two, for example, as shown in the figure. Figure 2 and Figure 3 The first current-carrying wire 11a and the second current-carrying wire 11b shown can be used as the live wire and the neutral wire, respectively. In this embodiment, the plug 20 can be a standard two-pin plug, which can correspond to the live wire and the neutral wire, respectively, and connect to the first current-carrying wire 11a and the second current-carrying wire 11b. In other embodiments, the number of current-carrying wires 11 can also be more than two, such as three, which can serve as the live wire, the neutral wire, and the ground wire, respectively. In this embodiment, the plug 20 can be a standard three-pin plug, which can correspond to the live wire, the neutral wire, and the ground wire, respectively. It is understood that, depending on market demand and regional differences, the plug 20 can also exist in other types, such as European standard, American standard, British standard, etc., to adapt to the power socket standards and voltage environments of different countries and regions.

[0027] The current-carrying wire 11 may include a current-carrying conductor 111 and a current-carrying insulating layer 112 covering the current-carrying conductor 111. The current-carrying conductor 111 may be made of, for example, pure copper or copper alloy, or other materials with good conductivity, resistance to high and low temperatures, and resistance to bending. The current-carrying insulating layer 112 may be made of, for example, polyvinyl chloride or polyethylene, or other materials with good insulation properties.

[0028] One end of the signal line 12 can be coupled to the filter unit 13, and the other end can be coupled to the circuit board assembly 301 in the blower body 30. In one embodiment, the number of signal lines 12 can be two, for example, as shown below. Figure 2 and Figure 3 The first signal line 12a and the second signal line 12b are shown in the diagram. It is understood that the number of signal lines 12 is not limited to two, and can be set according to actual needs.

[0029] The signal line 12 may include a signal conductor 121 and a signal insulation layer 122 covering the signal conductor 121. The signal conductor 121 may be made of any one or more materials selected from pure copper, tin-plated copper, and alloy copper, or it may be made of other materials with good conductivity, resistance to high and low temperatures, and resistance to bending. The signal insulation layer 122 may be made of, for example, polyethylene, or it may be made of other materials with good insulation properties.

[0030] When there are two signal lines 12, the first signal line 12a and the second signal line 12b can be twisted together, for example, by alternately winding them into a spiral. This twisting method can reduce external electromagnetic interference and reduce signal crosstalk between the wire pairs.

[0031] The filter unit 13 is used to filter out noise generated by the hair dryer body 30 during operation. The filter unit 13 may include a filter capacitor, such as an electrolytic capacitor, to filter out ripple generated in the power supply. Household electricity generally uses alternating current (AC), while hair dryers use direct current (DC). When AC is converted to DC by a rectifier, an imperfectly smooth DC current is generated, containing some residual AC components, which can cause voltage fluctuations. The filter unit 13 smooths out these power fluctuations, making the DC current more stable, thereby ensuring stable operation of the motor and other electronic components inside the hair dryer body 30. It is understood that the filter capacitor in the filter unit 13 can also be other types of capacitors, such as film capacitors, tantalum capacitors, etc.

[0032] The filter unit 13 may also include other types of filter elements, such as inductors, capacitors and inductors, or combinations of capacitors and resistors connected in series or in parallel. Depending on the type and connection method of the filter elements in the filter unit 13, the number of signal lines 12 may also be changed.

[0033] In one embodiment, the filter unit 13 may be housed within a filter unit housing (not shown) to protect the filter unit 13 from damage. The filter unit housing may be made of, for example, plastic, or other materials that are pressure-resistant and non-conductive.

[0034] The outer sheath 14 encloses the cable carrier 11, signal line 12, and filter unit 13 housed within the filter unit housing to protect the cable's internal components from external environmental damage, such as mechanical damage, moisture penetration, and chemical corrosion, thereby ensuring user safety when using the cable. The outer sheath 14 may be made of, for example, polyvinyl chloride or rubber, or other materials that are flame-retardant, resistant to high and low temperatures, have good abrasion resistance, and are flexible.

[0035] In some embodiments, the cable 10 may further include a shielding layer 15, a drain wire 16, a cable insulation layer 17, and a filler 18. The shielding layer 15 covers the drain wire 11, signal wire 12, and filter unit 13 to shield external signals from interference, thereby protecting the internal signals transmitted within the cable from interference. The shielding layer 15 may be constructed using a metal mesh braid, such as tinned copper wire or bare copper wire, or other metallic materials with good conductivity and electromagnetic shielding properties. The drain wire 16 is located above and adheres to the shielding layer 15 to ensure that the drain wire 16 discharges the current generated by electromagnetic interference from the shielding layer 15, reducing the resistance of the shielding layer 15 itself and thus improving the cable's anti-interference capability. The cable insulation layer 17 completely covers the shielding layer 15 and the drain wire 16, further improving the insulation performance of the cable 10 and ensuring that the cable 10 does not experience leakage or short circuits during operation, thereby ensuring its safety and electrical performance. The cable insulation layer 17 may be made of polyvinyl chloride, for example, or other materials with excellent electrical insulation properties. Filler 18 is inserted into shielding layer 15 to fill the gap between current-carrying line 11 and signal line 12, maintain the round shape of the cable, prevent relative movement between current-carrying line 11, signal line 12 and sheath layer, thereby improving the mechanical strength of cable 10.

[0036] In various embodiments of this utility model, the cable 10 provides filtering function to the hair dryer body 30 through the internal filter unit 13. The circuit board assembly 301 in the hair dryer body 30 no longer needs to be equipped with the filter unit 13, thereby reducing the weight and internal volume of the hair dryer body 30 and greatly improving the user's comfort.

[0037] The above description is merely an optional embodiment of the present utility model and is not intended to limit the embodiments of the present utility model. For those skilled in the art, the embodiments of the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of the present utility model should be included in the protection of the embodiments of the present utility model.

[0038] While embodiments of the present invention have been described with reference to several specific examples, it should be understood that the embodiments of the present invention are not limited to the specific embodiments disclosed. The embodiments of the present invention are intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. The scope of the appended claims is to be interpreted in the broadest sense, thereby encompassing all such modifications and equivalent structures and functions.

Claims

1. A cable for an electrical appliance, characterized in that, The cable includes: Outer layer; A current-carrying line is arranged within the outer sheath, one end of which is coupled to a plug to receive electrical power, and the other end is coupled to a circuit board assembly in the electrical device to supply the electrical power to the electrical device. A filtering unit is disposed within the outer sheath and configured to filter out noise generated during the operation of the electrical equipment. The signal line is arranged within the outer sheath, with one end coupled to the filter unit and the other end coupled to the circuit board assembly in the electrical device.

2. The cable of claim 1, wherein, The number of signal lines is two, wherein the two signal lines are twisted together in an alternating spiral pattern.

3. The cable according to claim 1, characterized in that, It also includes a filter unit housing, which is disposed within the outer sheath and configured to house the filter unit.

4. The cable according to claim 3, characterized in that, The housing of the filter unit is made of plastic.

5. The cable according to claim 1, characterized in that, The filtering unit includes a filtering capacitor.

6. The cable according to claim 1, characterized in that, It also includes a shielding layer disposed within the outer sheath and configured to cover the current-carrying lines, the signal lines, and the filtering unit.

7. The cable according to claim 6, characterized in that, It also includes an insulating layer disposed between the shielding layer and the outer sheath.

8. The cable according to claim 6, characterized in that, It also includes drainage lines arranged adjacent to the shielding layer and configured to drain the current from the shielding layer.

9. A plug assembly, characterized in that, The plug assembly includes: plug; The cable according to any one of claims 1 to 8 is coupled to the plug.

10. An electrical appliance, characterized in that, The electrical equipment includes: The main body of the electrical equipment; The plug assembly according to claim 9 is coupled to the electrical device body.

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