CN220890530U

CN220890530U - Portable fan based on structural optimization

Info

Publication number: CN220890530U
Application number: CN202322385347.XU
Authority: CN
Inventors: 郑观正; 李享福; 谢佳航; 祁文鹏
Original assignee: Shenzhen Jisu Technology Co Ltd
Current assignee: Shenzhen Jisu Technology Co Ltd
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2024-05-03
Anticipated expiration: 2033-08-30

Abstract

The application discloses a portable fan based on structural optimization, which comprises: the fan main body is provided with a fan assembly for blowing air; the first PCB circuit board is arranged in the fan main body, and the fan assembly is electrically connected with the first PCB circuit board; the second PCB circuit board is arranged on the first PCB circuit board in a crossing way and is electrically connected with the first PCB circuit board; the electronic component is arranged on the first PCB circuit board and/or the second PCB circuit board; and the rechargeable battery is arranged in the fan main body and is electrically connected with the first PCB. The first PCB circuit board and the second PCB circuit board are intersected in space, and the inner space of the fan main body is reasonably utilized, so that the size of the fan main body is smaller.

Description

Portable fan based on structural optimization

Technical Field

The application relates to the field of fans, in particular to a portable fan based on structural optimization.

Background

In hot summer, the fan becomes a necessary article for people to eliminate the heat, and is more favored by people along with the convenient use requirement of people and lighter weight and portability.

The portable fan is loved by people because of small size and convenient carrying. The inventor of the present invention found in the research that the existing portable fan often has more electronic components for realizing the various electrical functions due to the variety of electrical functions. More electronic components need to be arranged on a circuit board with a larger area or the electronic components are arranged densely. However, the overall size of the portable fan is affected by the oversized circuit board, and the electronic interference among the electronic components is aggravated and the heating problem is serious due to too dense arrangement of the electronic components.

Disclosure of utility model

The application aims to provide a portable fan based on structural optimization, which increases the area of a circuit board and reduces the arrangement density of electronic components by reasonably utilizing space.

The embodiment of the application provides a portable fan based on structural optimization, which comprises the following components:

the fan main body is provided with a fan assembly for blowing air;

The first PCB circuit board is arranged in the fan main body, and the fan assembly is electrically connected with the first PCB circuit board;

The second PCB circuit board is arranged on the first PCB circuit board in a crossing way and is electrically connected with the first PCB circuit board;

The electronic component is arranged on the first PCB circuit board and/or the second PCB circuit board;

And the rechargeable battery is arranged in the fan main body and is electrically connected with the first PCB.

Optionally, a plugging slot is formed in the first PCB, and one end of the second PCB is vertically inserted into the plugging slot.

Optionally, the second PCB is fixedly connected with the first PCB by welding, and a circuit on the second PCB is connected with a circuit on the first PCB by welding; or alternatively

The fan comprises a fan body, wherein a plurality of supporting frames are arranged on the inner surface of the fan body, and the supporting frames are in butt joint with the first PCB.

Optionally, the fan main body is inside to be equipped with first fixed bolster and second fixed bolster, first PCB circuit board erects first fixed bolster and second fixed bolster are last.

Optionally, a first threaded hole is formed in the first fixing support, a second threaded hole is formed in the second fixing support, a first fixing hole is formed in the first PCB circuit board at a position corresponding to the first threaded hole, a second fixing hole is formed in the first PCB circuit board at a position corresponding to the second threaded hole, the first fixing hole is fixed with the first threaded hole through a first screw, and the second fixing hole is fixed with the second threaded hole through a second screw.

Optionally, the electronic component includes: the female seat of interface, female seat of interface is connected on the first PCB circuit board, the fan main part is in female seat of interface corresponds the position and has seted up first opening, female seat of interface passes through first opening and outside intercommunication.

Optionally, the electronic component further includes: the charging interface is connected to the first PCB or the second PCB, the fan main body is provided with a second opening at a position corresponding to the charging interface, and the charging interface is communicated with the outside through the second opening.

Optionally, the electronic component further includes: the LED signal lamp is connected to the first PCB or the second PCB, the fan main body is provided with a third opening at the corresponding position of the LED signal lamp, and the LED signal lamp is communicated with the outside through the third opening.

Optionally, the portable fan based on structural optimization further comprises: the LED signal lamp is clamped on the lamp body bracket; and

One end of the lamp body support is abutted with the first PCB, and the other end of the lamp body support is abutted with the inner surface of the fan main body; or alternatively

Clamping grooves are formed in two sides of the lamp body support, clamping pieces are arranged on the fan main body at positions corresponding to the clamping grooves, and the clamping grooves are in clamping connection with the clamping pieces; or alternatively

The lamp body bracket is provided with a storage groove, and the second PCB is arranged in the storage groove; or the lamp body bracket is provided with a light blocking piece.

Optionally, the portable fan based on structural optimization further comprises: the control button is provided with key switch on the first PCB circuit board, the control button with key switch butt, the fan main part is in the fourth opening has been seted up to the position that the control button corresponds, the control button sets up in the fourth opening.

The embodiment of the application has the beneficial effects that: a first PCB circuit board and a second PCB circuit board are arranged in the fan main body. And the second PCB circuit board is through setting up on first PCB circuit board, and second PCB circuit board and first PCB circuit board interconnect make the second PCB circuit board need not to occupy the space with first PCB board syntropy, but occupy the space between fan main part and the first fan main part, have improved the utilization ratio of fan main part inner space. The area of the whole PCB is increased through the arrangement of the first PCB and the second PCB, the arrangement density of electronic components in the fan main body is reduced, the heat dissipation space of the electronic components is increased, the heat dissipation efficiency is improved, and the mutual electromagnetic interference intensity of the electronic components is also reduced. Meanwhile, the first PCB circuit board and the second PCB circuit board are connected and reused in space, so that the internal space of the fan main body is reasonably utilized, the size of the fan main body is smaller, the space distance between electronic components arranged on the first PCB circuit board and the second PCB circuit board is increased, and the mutual electromagnetic interference intensity of the electronic components is further reduced.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic diagram of the overall structure of a portable fan based on structural optimization according to an embodiment of the present application;

FIG. 2 is an exploded view of a portable fan based on structural optimization according to an embodiment of the present application;

FIG. 3 is a schematic view of a first housing according to an embodiment of the present application;

Fig. 4 is a schematic diagram of a connection structure of a first PCB and a second PCB according to an embodiment of the present application;

Fig. 5 is a schematic diagram of a connection structure of a first PCB, a second PCB and an electronic component according to an embodiment of the present application;

Fig. 6 is a schematic diagram of a connection structure of a first PCB, a second PCB and a portion of electronic components according to an embodiment of the present application.

Description of the drawings: 1. a fan main body; 11. a first housing; 111. a first opening; 112. a second opening; 113. a third opening; 114. a fourth opening; 115. a first fixing bracket; 116. a second fixing bracket; 117. a clamping piece; 118. a support frame; 12. a second housing; 13. a receiving chamber; 2. a first PCB circuit board; 21. a plug-in groove; 22. a first fixing hole; 23. a second fixing hole; 24. a first screw; 25. a second screw; 3. a second PCB circuit board; 31. a tongue portion; 4. an electronic component; 41. an interface female seat; 42. a charging interface; 43. an LED signal lamp; 44. a key switch; 5. a fan assembly; 51. a fan motor; 52. fan blades; 53. a rotating shaft; 54. a shaft hole; 6. a control key; 7. a lamp body bracket; 71. a light blocking sheet; 72. a clamping groove; 8. and a rechargeable battery.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, fig. 1 is a schematic diagram of the overall structure of a portable fan based on structural optimization according to the present embodiment; fig. 2 is an exploded view of the portable fan according to the present embodiment based on structural optimization.

As shown in fig. 1 and 2, a portable fan based on structural optimization includes: a fan main body 1, a first PCB circuit board 2, a second PCB circuit board 3, an electronic component 4, and a rechargeable battery 8. The fan main body 1 is provided with a fan assembly 5 for blowing air; the first PCB 2 is arranged in the fan body 1 along the length direction of the fan body 1, and the fan assembly 5 is electrically connected with the first PCB 2; the second PCB 3 is inserted and connected on the first PCB 2 in an intersecting way, and the second PCB 3 is electrically connected with the first PCB 2; the electronic components 4 are arranged on the first PCB 2 and/or the second PCB 3; the rechargeable battery 8 is disposed in the fan main body 1 and electrically connected with the first PCB circuit board 2.

The fan main body 1 is provided with a fan assembly 5. The fan main body 1 includes: a first housing 11 and a second housing 12. The fan assembly 5 includes: a fan motor 51 and fan blades 52. The first shell 11 is provided with a shaft hole 54; the fan motor 51 is disposed in the first housing 11, and a rotation shaft 53 of the fan motor 51 is inserted into and passes out of the shaft hole 54; the fan blade 52 is disposed outside the first housing 11 and connected to an end of the rotating shaft 53 penetrating through the shaft hole 54.

In some embodiments, the fan body 1 can also be molded as a complete housing by an integral molding process.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a first housing according to the present embodiment.

As shown in fig. 3, the fan main body 1 is provided with a receiving cavity 13, and the first PCB 2 is disposed in the receiving cavity 13 and along the length direction of the receiving cavity 13. The second PCB 3 is disposed between the first PCB 2 and the inner surface of the receiving cavity 13.

In some embodiments, when the fan body 1 includes: the first shell 11 and the second shell 12, hold the chamber 13 and offer on first shell 11, first PCB circuit board 2 sets up in holding chamber 13, and along holding chamber 13's length direction setting. The second PCB 3 is disposed between the first PCB 2 and the inner surface of the first housing 11.

The spatial position relationship of the first PCB circuit board 2 and the second PCB circuit board 3 is intersecting, and therefore, the first PCB circuit board 2 and the second PCB circuit board 3 can be vertically inserted, acutely inserted, or obtusely inserted.

The electronic component 4 in the present embodiment may be (not limited to): chip, resistor, capacitor, inductor, potentiometer, interface socket 41, charging interface 42, LED signal lamp 43 or key switch 44, etc.

The rechargeable battery 8 is disposed between the accommodation chamber 13 and the fan assembly 5. In some embodiments, one end of the rechargeable battery 8 is mounted above the receiving chamber 13.

The first PCB circuit board 2 is electrically connected to the fan assembly 5 through a wire or a flexible printed circuit.

The first PCB 2 and the second PCB 3 are electrically connected by wires, flexible printed circuits or solder.

The rechargeable battery 8 is electrically connected to the first PCB circuit board 2 through a wire or a flexible printed circuit.

In the above embodiment, the first PCB 2 and the second PCB 3 are disposed in the fan main body 1, where the first PCB 2 is disposed along the length direction of the fan main body 1, and the length of the fan main body 1 is long, so that the first PCB 2 is disposed along the length of the fan main body 1, and the space of the fan main body 1 can be most effectively utilized. The second PCB 3 is inserted on the first PCB 2 in an intersecting manner, and the second PCB 3 is inserted with the first PCB 2 in an intersecting manner, so that the second PCB 3 does not occupy the space of the fan main body 1 in the length direction, but occupies the space between the fan main body 1 and the first fan main body 1, and the utilization rate of the internal space of the fan main body 1 is improved. The area of the whole PCB is increased through the arrangement of the first PCB 2 and the second PCB 3, the arrangement density of the electronic components 4 in the fan main body 1 is reduced, the heat dissipation space of the electronic components 4 is increased, the heat dissipation efficiency is improved, and the mutual electromagnetic interference intensity of the electronic components 4 is also reduced. Meanwhile, as the first PCB 2 and the second PCB 3 are intersected in space, the internal space of the fan main body 1 is reasonably utilized, the size of the fan main body 1 is smaller, the space distance between the electronic components 4 arranged on the first PCB 2 and the second PCB 3 is increased, and the electromagnetic interference intensity between the electronic components 4 is further reduced.

The first PCB 2 is provided with a plugging slot 21, and one end of the second PCB 3 is vertically inserted into the plugging slot 21.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating a connection structure between a first PCB and a second PCB according to the present embodiment.

As shown in fig. 4, in some embodiments, an end of the second PCB 3 that mates with the first PCB 2 extends out of the mating tongue 31, and the mating tongue 31 is inserted into the mating groove 21.

The first PCB circuit board 2 is provided with the inserting groove 21, the second PCB circuit board 3 is inserted into the inserting groove 21, and the second PCB circuit board 3 can be more conveniently inserted onto the first PCB circuit board 2 through the inserting groove 21. Meanwhile, the second PCB 3 can be exposed out of the two sides of the first PCB 2 through the inserting grooves 21, so that the second PCB 3 is conveniently fixed from the two sides.

The second PCB 3 is fixedly connected with the first PCB 2 by welding, and the circuit on the second PCB 3 is connected with the circuit on the first PCB 2 by welding.

The second PCB 3 is fixed on the first PCB 2 by soldering, the soldered joint is located at the position where the second PCB 3 is connected with the plugging slot 21, and the soldered joint can be located at the connecting position of one side or at the connecting position of two sides.

The circuit on the second PCB 3 and the circuit on the first PCB 2 are also electrically connected by soldering.

Through soldering, the second PCB 3 can be fixed on the first PCB 2, and meanwhile, the wires are saved by connecting the first PCB 2 with the second PCB 3 through welding, so that the electric connection is more stable.

In some embodiments, the fixing manner between the first PCB circuit board 2 and the second PCB circuit board 3 can also be (without limitation): gluing, interference fit and the like. When the first PCB 2 and the second PCB 3 are connected in an adhesive or interference fit mode, the first PCB and the second PCB are electrically connected through a lead and a flexible printed circuit.

In some embodiments, the first PCB2 and the second PCB 3 are not required to be connected through the plugging tongue 31 and the plugging groove 21, and the first PCB2 and the second PCB 3 can be directly fixed by gluing or soldering.

The fan main body 1 is provided with a plurality of support frames 118 on the internal surface, and a plurality of support frames 118 are in butt joint with the first PCB circuit board 2. A plurality of support brackets 118 are circumferentially arranged around the first PCB 2. The support of the plurality of support frames 118 can make the first PCB 2 more stable when assembled. And a plurality of support frames 118 enclose the structure that forms, can fix a position first PCB circuit board 2, make things convenient for the assembly of first PCB circuit board 2.

The fan body 1 is internally provided with a first fixing bracket 115 and a second fixing bracket 116, and the first PCB 2 is erected on the first fixing bracket 115 and the second fixing bracket 116.

The first fixing bracket 115 is provided with a first threaded hole (not shown), the second fixing bracket 116 is provided with a second threaded hole (not shown), the first PCB 2 is provided with a first fixing hole 22 at a position corresponding to the first threaded hole, the first PCB 2 is provided with a second fixing hole 23 at a position corresponding to the second threaded hole, the first fixing hole 22 and the first threaded hole are fixed through a first screw 24, and the second fixing hole 23 and the second threaded hole are fixed through a second screw 25.

In some embodiments, the first PCB 2 and the first fixing bracket 115 and the second fixing bracket 116 can be fixed in the following manner (not limited to): and (3) fixing in an adhesive manner or fixing in a riveting manner.

The arrangement of the first fixing bracket 115 and the second fixing bracket 116 can make the first PCB 2 more stable.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating connection structures of a first PCB, a second PCB and an electronic component according to the present embodiment.

As shown in fig. 5, in some embodiments, the electronic component 4 includes: the female seat 41 of interface, female seat 41 of interface connects on first PCB circuit board 2, and fan main body 1 has seted up first opening 111 in female seat 41 of interface corresponding position, and female seat 41 of interface communicates with the outside through first opening 111.

The interface socket 41 is a USB interface socket 41. The interface socket 41 is welded and fixed with the first PCB 2, and the interface socket 41 is used for charging the external electronic terminal. In the present embodiment, the portable fan can be used as a charger to charge an external electronic terminal, which is electrically connected to the interface socket 41 via a USB charging wire, and is charged.

In some embodiments, the electronic component 4 further comprises: the charging interface 42, the charging interface 42 is connected to the second PCB 3, and the fan main body 1 is provided with a second opening 112 at a position corresponding to the charging interface 42, and the charging interface 42 is communicated with the outside through the second opening 112.

In this embodiment, the charging interface 42 is a Type-C interface. However, the type of the charging interface 42 is not limited thereto, and in some embodiments, the charging interface 42 is a USB interface according to the specific application scenario.

The charging interface 42 is fixed with the second PCB 3 by welding. The charging interface 42 is fixed with the second PCB 3, so that the placement of a bracket on the charging interface 42 can be avoided, the fixing mode of the charging interface 42 is simplified, and meanwhile, the fixing of the charging interface 42 is more stable.

The charging interface 42 is used for charging the rechargeable battery 8, and the rechargeable battery 8 can be charged by connecting a charging wire to an external power source.

In some implementations, the charging interface 42 can be fixed on the first PCB circuit board 2.

Referring to fig. 6, fig. 6 is a schematic diagram illustrating a connection structure of a first PCB, a second PCB and a part of electronic components according to the present embodiment.

As shown in fig. 6, in some embodiments, the electronic component 4 further comprises: the LED signal lamp 43, the LED signal lamp 43 is connected on the first PCB circuit board 2 or the second PCB circuit board 3, the fan main body 1 is provided with a third opening 113 at the position corresponding to the LED signal lamp 43, and the LED signal lamp 43 is communicated with the outside through the third opening 113.

The LED signal lamp 43 is fixed to the first PCB 2 by soldering. However, the fixing manner of the LED signal lamp 43 is not limited thereto, and in some embodiments, the LED signal lamp 43 is fixed to the second PCB 3 by soldering according to a specific application scenario.

Portable fan based on structural optimization still includes: the lamp body support 7, the LED signal lamp 43 joint is on the lamp body support 7. In order to prevent the LED signal lamp 43 from falling into the fan body from the third opening 113 after being pressed by an external force, the lamp body bracket 7 is provided to support the LED signal lamp 43.

One end of the lamp body support 7 is abutted with the first PCB 2, and the other end of the lamp body support 7 is abutted with the inner surface of the fan main body 1. The lamp body support 7 is abutted against the inner surfaces of the first PCB 2 and the fan main body 1, so that the stability of the lamp body support 7 can be improved, and the LED signal lamp 43 can be better supported.

Clamping grooves 72 are formed in two sides of the lamp body support 7, clamping pieces 117 are arranged at positions corresponding to the clamping grooves 72 in the fan main body 1, and the clamping grooves 72 are connected with the clamping pieces 117 in a clamping mode. The clamping grooves 72 are formed in the lamp body support 7, so that the lamp body support 7 can be prevented from tilting to the left and right sides, and the lamp body support 7 is more stable.

The LED signal lamp 43 has two metal legs, and the LED signal lamp 43 is connected with the first PCB circuit board 2 or the second PCB circuit board 3 through the two metal legs. A storage groove for two metal support legs to pass through is formed in one side of the lamp body support 7, and the second PCB 3 is arranged in the storage groove. The space resource can be utilized to the maximum extent, so that the portable fan is more compact. Meanwhile, the second PCB 3 and the lamp body bracket 7 can be mutually supported, so that the stability of the second PCB 3 and the lamp body bracket 7 is improved, and the second PCB 3 and the lamp body bracket 7 are prevented from deflecting to the left and right sides.

The upper cover of the lamp body bracket 7 is provided with a light blocking sheet 71, and the light blocking sheet 71 is arranged on one side of the lamp body bracket 7 facing the interface mother seat 41. However, the position of the light blocking sheet 71 is not limited thereto, and the light blocking sheet 71 is covered on the receiving groove in some embodiments according to the specific application scenario. The light blocking sheet 71 is a sheet-like structure made of (but not limited to) light blocking cotton, plastic or metal foil. The light blocking sheet 71 can prevent the light leakage of the LED signal lamp 43, and affect the overall appearance of the portable fan.

In some embodiments, the portable fan based on structural optimization further comprises: the control button 6 is provided with a button switch 44 on the first PCB 2, the control button 6 is abutted with the button switch 44, a fourth opening 114 is formed in the fan main body at a position corresponding to the control button 6, and the control button 6 is arranged in the fourth opening 114.

It should be noted that while the present application has been illustrated in the drawings and described in connection with the preferred embodiments thereof, it is to be understood that the application may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but are to be construed as providing a full breadth of the disclosure. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope of the present application described in the specification; further, modifications and variations of the present application may be apparent to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be included within the scope of this application as defined in the appended claims.

Claims

1. A portable fan based on structural optimization, comprising:

the fan main body is provided with a fan assembly for blowing air;

2. The portable fan based on structural optimization of claim 1, wherein the first PCB is provided with a socket, and one end of the second PCB is vertically inserted into the socket.

3. The portable fan based on structural optimization of claim 2, wherein the second PCB is fixedly connected to the first PCB by soldering, and the circuit on the second PCB is connected to the circuit on the first PCB by soldering; or alternatively

4. The portable fan based on structural optimization of claim 1, wherein a first fixed bracket and a second fixed bracket are arranged inside the fan body, and the first PCB is erected on the first fixed bracket and the second fixed bracket.

5. The portable fan based on structural optimization of claim 4, wherein the first fixing support is provided with a first threaded hole, the second fixing support is provided with a second threaded hole, the first PCB is provided with a first fixing hole at a position corresponding to the first threaded hole, the first PCB is provided with a second fixing hole at a position corresponding to the second threaded hole, the first fixing hole and the first threaded hole are fixed through a first screw, and the second fixing hole and the second threaded hole are fixed through a second screw.

6. The portable, structural optimization-based fan of claim 1, wherein the electronic components comprise: the female seat of interface, female seat of interface is connected on the first PCB circuit board, the fan main part is in female seat of interface corresponds the position and has seted up first opening, female seat of interface passes through first opening and outside intercommunication.

7. The portable, structural optimization-based fan of claim 1, wherein the electronic components further comprise: the charging interface is connected to the first PCB or the second PCB, the fan main body is provided with a second opening at a position corresponding to the charging interface, and the charging interface is communicated with the outside through the second opening.

8. The portable, structural optimization-based fan of claim 1, wherein the electronic components further comprise: the LED signal lamp is connected to the first PCB or the second PCB, the fan main body is provided with a third opening at the corresponding position of the LED signal lamp, and the LED signal lamp is communicated with the outside through the third opening.

9. The portable, structural optimization-based fan of claim 8, further comprising: the LED signal lamp is clamped on the lamp body bracket; and

The lamp body bracket is provided with a storage groove, and the second PCB is arranged in the storage groove; or alternatively

The lamp body support is provided with a light blocking piece.

10. The portable, structural optimization-based fan of claim 1, further comprising: the control button is provided with key switch on the first PCB circuit board, the control button with key switch butt, the fan main part is in the fourth opening has been seted up to the position that the control button corresponds, the control button sets up in the fourth opening.