CN213128428U - Printed circuit board and hairdryer - Google Patents

Abstract

The application relates to a printed circuit board and an electric hair drier, which are arranged in a holding part of the electric hair drier, wherein the printed circuit board is provided with at least one capacitance device which is horizontally arranged on the printed circuit board; the height of the capacitor device in horizontal arrangement is smaller than that of the capacitor device in vertical arrangement. Through the mode, the whole height of printed circuit board can be reduced to this application to indirectly reduce the diameter of the portion of gripping, with the effect that reaches reduce cost.

Description

Printed circuit board and hairdryer

Technical Field

The application relates to a printed circuit board and an electric hair drier, and belongs to the technical field of printed circuit board manufacturing.

Background

The printed circuit board in the hair dryer is generally arranged in the holding part to save the arrangement space of the working part. However, the components on the printed circuit board in the prior art are generally vertically arranged, so that the overall height of the printed circuit board is larger, the diameter of the holding part is increased, the manufacturing cost is indirectly increased, and the overall attractiveness of the hair dryer is damaged.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a printed circuit board and hairdryer, its diameter in order to reduce the portion of gripping through with components and parts rational arrangement on printed circuit board, convenient and fast and simple.

In order to achieve the purpose, the application provides the following technical scheme: a printed circuit board is used for being installed in a holding part of a hair dryer, at least one capacitor device is arranged on the printed circuit board, and the capacitor device is horizontally arranged on the printed circuit board so as to reduce the overall height of the printed circuit board; wherein the height of the capacitor device in horizontal arrangement is smaller than the height of the capacitor device in vertical arrangement.

Furthermore, at least one switching device is arranged on the printed circuit board; the holding part is provided with an opening, and the switch device is arranged on one side of the printed circuit board facing the opening, so that at least part of the switch device protrudes out of the opening.

Further, the switching device is disposed on both sides of the printed circuit board opposite to the capacitance device.

Further, a first air gap exists between the capacitance device and the printed circuit board, and a second air gap exists between the switch device and the printed circuit board; the printed circuit board is further provided with a chip, and the chip is arranged in the first gap and/or the second gap.

Further, at least one resistance device is arranged on the printed circuit board, and the resistance device is arranged in the first gap and/or the second gap, and/or the periphery of the capacitance device and the switch device.

Further, at least one opening device is arranged on the printed circuit board, and the opening device is arranged in the first gap and/or the second gap, and/or the peripheries of the capacitance device and the switch device.

Further, the switching device is a long-leg plug-in packaged switching device.

Furthermore, a display device is further arranged on the printed circuit board, and the display device and the switch device are arranged on the same side of the printed circuit board.

The application also provides an electric hair drier, including the work portion and with the portion of gripping that the work portion is connected, be provided with as above in the portion of gripping printed circuit board.

Further, the diameter of the holding part is less than or equal to 3 cm.

The beneficial effect of this application lies in: through setting up the capacitor element crouching on printed circuit board, the height that highly is less than the capacitor element of vertical setting of capacitor element of crouching setting to reduce the holistic height of printed circuit board, indirectly reduced the diameter of portion of gripping and in order to reach reduce cost's effect.

The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clear and clear, and to implement the technical solutions according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of the hair dryer of the present application.

Fig. 2 is a partial structural view of the working part in fig. 1.

Fig. 3 is another schematic structural view of a portion of the working portion in fig. 1.

Fig. 4 is a schematic structural view of the grip portion in fig. 1.

Fig. 5 is a schematic structural diagram of the printed circuit board of the present application.

Fig. 6 is a schematic structural view of a capacitor device.

Fig. 7 is another structural schematic diagram of the printed circuit board of the present application.

Fig. 8 is a schematic view of another structure of the printed circuit board of the present application.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other. In the description of the present application, the axis direction coincides with the height direction.

Referring to fig. 1, a hair dryer 100 in a preferred embodiment of the present application can be used in a hair drying scene; or, the application scenes of local drying, heating and physical therapy in the aspects of laboratories, physical therapy rooms, industrial production, art designing and the like are not limited in the application scenes of the hair dryer 100. This hair dryer 100 can include the following components: a grip part 2 and a working part 1 connected to the grip part 2.

Referring to fig. 2 and 3, the working portion 1 includes a wind barrel housing 11 having a cavity, a wind suction assembly 12 disposed in the cavity for introducing an external airflow into the cavity, and a heating assembly 13 for adjusting the temperature of the airflow, the wind barrel housing 11 has an air inlet 111 and an air outlet 112, the wind suction assembly 12 is disposed near the air inlet 111, the heating assembly 13 is disposed near the air outlet 112, that is, the wind suction assembly 12 is used for sucking the external airflow into the cavity from the air inlet 111, and the airflow flows out from the air outlet 112 through the temperature adjustment of the heating assembly 13, so as to form an airflow channel in the cavity.

The suction assembly 12 includes a motor 121 and a fan 122, the fan 122 being connected to an output shaft of the motor 121, the motor 121 being actuated to rotate the output shaft and in turn the fan 122. The motor 121 and the fan 122 may be integrally provided or separately provided, and are not particularly limited herein, depending on the actual situation. Alternatively, the motor 121 may be an ac induction motor, a series ac/dc motor, or a dc motor, and the type of the motor 121 is not limited in this embodiment.

In this embodiment, in order to make hair dryer 100 smaller and more convenient to carry or use, heating element 13 is sleeved on the outer circumferential surface of motor 121 to be fixed with motor 121, and heating element 13 is a heating wire. Indeed, in other embodiments, the heating element 13 may be other, and is not limited to the above embodiments.

In the present embodiment, the air duct casing 11 is circular to match the shape of the fan 122, and forms a spiral acceleration in the cavity to facilitate the air flow. Indeed, in other embodiments, the shape of the air duct casing 11 may be other, and is not specifically limited herein, depending on the actual situation.

The working part 1 further comprises a negative ion component 14 arranged in the cavity, the negative ion component 14 is used for generating negative ion particles and water vapor particles to neutralize the positive charges in the hair, so that the effect of smoothing the hair randomly and making the hair smooth and static electricity eliminated is achieved, the negative ion component 14 is arranged on the airflow channel and is of a conventional structure, and the description is omitted.

In this embodiment, in order to optimize the hair smoothing effect of the hair dryer 100, the negative ion assembly 14 is disposed on one side of the heating assembly 13 and near the air outlet 112, so that the air flow carries more negatively charged ion particles and water vapor particles to blow toward the hair without loss.

Referring to fig. 1 and 4, the holding portion 2 has a first end 21 connected to the working portion 1 and a second end 22 away from the working portion 1 for air intake. Second end 22 has a cable 23 running through it to provide power to hair dryer 100 as a whole. The end of the cable 23 remote from the second end 22 is provided with a plug (not shown in the figures) which can provide an electrical connection to a mains power supply or a battery pack.

The cable 23 includes a live wire and a neutral wire. Alternatively, the cable 23 is divided into at least two wires inside the grip 2 after one wire penetrates the second end 22.

The grip portion 2 has a grip housing 24 to protect components inside the grip portion 2. The grip housing 24 extends from near the working part 1 to an end remote from the working part 1. The cable 23 enters the grip portion 2 through a grip housing 24 at the location of the second end 22. The cable 23 is positioned substantially in the middle of the second end 22, extending towards the inner centre of the grip portion 2. Illustratively, the grip portion 2 is generally tubular in structure and has a substantially uniform diameter. Of course, the grip portion 2 may have other shapes, and this embodiment is not limited thereto. Alternatively, in order to ensure the stability of the user when using hair dryer 100, the grip portion 2 of grip housing 24 may be provided with an anti-slip component; alternatively, the material of the grip portion 2 of the grip housing 24 is a non-slip material.

The holding housing 24 forms an accommodating space therein, the hair dryer 100 further comprises a printed circuit board 25 disposed in the accommodating space, the cable 23 enters the holding portion 2 and is electrically connected to the printed circuit board 25, and the printed circuit board 25 is electrically connected to the heating assembly 13, the air suction assembly 12 and the negative ion assembly 14 in the working portion 1. In the present embodiment, the grip portion 2 has a diameter range of 3cm or less. Therefore, it is necessary to properly arrange the components on the printed circuit board 25 so that the printed circuit board 25 can be disposed in the grip portion 2.

Referring to fig. 5, 7 and 8, the printed circuit board 25 is provided with at least one capacitor device 251, a resistor device, an interface device 254, a chip, a switch device 252 and a display device, and the printed circuit board 25 is further provided with a solder hole 253, and the above devices and the solder hole 253 are inserted into the printed circuit board 25. Indeed, in other embodiments, the above-mentioned components may be disposed on the printed circuit board 25 by other means, and are not limited in detail herein.

As shown in fig. 6, the direction of arrow a is indicated as the length of the capacitor device 251, the direction of arrow b is indicated as the width of the capacitor device 251, and the direction of arrow c is indicated as the height of the capacitor device 251. When the capacitor device 251 is vertically disposed on the printed circuit board 25, the height of the capacitor device 251 is based on the length thereof, thereby increasing the overall height of the printed circuit board 25. In order to solve this problem, in the present embodiment, the capacitor 251 is horizontally disposed on the printed circuit board 25, and at this time, the height of the capacitor 251 is the real height, and the height value is much smaller than the length value, that is, the height of the capacitor 251 in the horizontal disposition is smaller than the height of the capacitor 251 in the vertical disposition, so as to achieve the effect of reducing the overall height of the printed circuit board 25.

In this embodiment, two capacitor devices 251 are provided, and the two capacitor devices 251 are respectively an X2 ampere capacitor and a CBB capacitor, which are both conventional structures and will not be described herein. The X2A capacitor and the CBB capacitor are both horizontally arranged on the printed circuit board 25 and are arranged on the same side. Indeed, in other embodiments, the number of the capacitor devices 251 may be other, and is not limited herein, according to the actual situation. A first gap is formed between the CBB capacitor and the printed circuit board 25 after the CBB capacitor is placed horizontally, and the chip is disposed in the first gap to save the layout space of the printed circuit board 25, so that the devices on the printed circuit board 25 are more compact.

An opening is provided on the grip portion 2, and the switching device 252 is provided on a side of the printed circuit board 25 facing the opening such that at least a part of the switching device 252 protrudes out of the opening. In this embodiment, switch device 252 includes a push switch for turning on/off hair dryer 100 and a temperature control switch for adjusting the cooling/heating mode of hair dryer 100, which are conventional structures and will not be described herein. In the present embodiment, the switching device 252 is disposed on both sides of the printed circuit board 25 opposite to the capacitance device 251.

Wherein the switching device 252 is a long pin package switching device 252. Specifically, in the present embodiment, the push button switch is a long-leg package, and a second gap exists between the push button switch of the long-leg package and the printed circuit board 25 when the push button switch is disposed on the printed circuit board 25. The resistor device includes a current limiting resistor and a voltage dependent resistor, and the interface device 254 includes an NTC interface and a negative ion interface, which are arranged in the second gap. As mentioned above, the chip may also be disposed in the second gap, and the current limiting resistor and the voltage dependent resistor and/or the NTC interface and the negative ion interface may also be disposed in the first gap; alternatively, the current limiting resistor and the voltage dependent resistor and/or the NTC interface and the negative ion interface may be disposed around the capacitor 251 and the switch 252, which is not limited herein, and the overall height of the printed circuit board 25 is smaller than the diameter of the grip portion 2 according to the actual situation.

A display device is also provided on the printed circuit board 25, the display device being disposed on the same side of the printed circuit board 25 as the switching device 252. The display device is an RGB mode light for displaying different temperature modes of hair dryer 100. In other embodiments, the display device may be other, and is not limited herein, according to the actual situation.

In summary, the following steps: the capacitor device is horizontally arranged on the printed circuit board, and the height of the horizontally arranged capacitor device is smaller than that of the vertically arranged capacitor device, so that the overall height of the printed circuit board is reduced, and the diameter of the holding part is indirectly reduced to achieve the effect of reducing the cost;

further, this application has first space in order to place chip or other components and parts between capacitance device and the printed circuit board through crouching to put the setting to improve the compactness of arranging of components and parts on the printed circuit board, make full use of spatial layout is in order to reach the purpose that reduces printed circuit board overall height.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A printed circuit board is used for being installed in a holding part of an electric hair drier, and is characterized in that at least one capacitor device is arranged on the printed circuit board, and the capacitor device is horizontally arranged on the printed circuit board so as to reduce the overall height of the printed circuit board; wherein the height of the capacitor device in horizontal arrangement is smaller than the height of the capacitor device in vertical arrangement.

2. The printed circuit board of claim 1, wherein at least one switching device is further disposed on the printed circuit board; the holding part is provided with an opening, and the switch device is arranged on one side of the printed circuit board facing the opening, so that at least part of the switch device protrudes out of the opening.

3. The printed circuit board of claim 2, wherein the switching device is disposed on both sides of the printed circuit board opposite the capacitive device.

4. The printed circuit board of claim 2, wherein a first air gap exists between the capacitive device and the printed circuit board and a second air gap exists between the switching device and the printed circuit board; the printed circuit board is further provided with a chip, and the chip is arranged in the first gap and/or the second gap.

5. The printed circuit board of claim 4, further comprising at least one resistive device disposed on the printed circuit board at one or more of the first void, the second void, and the perimeter of the capacitive device and the switching device.

6. The printed circuit board of claim 4, wherein at least one interface device is further disposed on the printed circuit board at one or more of the first void, the second void, and the perimeter of the capacitive device and the switching device.

7. The printed circuit board of claim 2, wherein the switching device is a long pin package switching device.

8. The printed circuit board of claim 2, wherein a display device is further disposed on the printed circuit board, the display device and the switching device being disposed on a same side of the printed circuit board.

9. A hair dryer, characterized in that, including the work portion and with the handle portion that the work portion is connected, set up the printed circuit board as in any one of claims 1-8 in the handle portion.

10. A hair dryer according to claim 9, characterized in that the diameter of said grip is less than or equal to 3 cm.

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