阅读说明：本技术 一种扑翼式压电陶瓷散热风扇 (Flapping-wing type piezoelectric ceramic cooling fan ) 是由 崔佳欢 李建新 昌隆 袁晨泰 郭易详 于 2020-06-29 设计创作，主要内容包括：本发明公开了一种扑翼式压电陶瓷散热风扇,包括：底座,以及安装在所述底座上的散热组件,所述散热组件包括翼骨架、翼片以及压电陶瓷片,所述翼片由左翼和右翼组成,所述左翼和右翼分别固定在所述翼骨架上部的左右两侧,所述压电陶瓷片由左压电陶瓷片和右压电陶瓷片组成,所述左压电陶瓷片和右压电陶瓷片分别固定在所述翼骨架下部的左右两侧,所述翼骨架接地,所述左压电陶瓷片接正极,所述右压电陶瓷片接负极。底座不占用通风面积,与现有压电陶瓷风扇相比通风面积更大,风道阻力更小。翼片振动方式模仿昆虫翅膀振动方式,具有更高的气动效率。(The invention discloses a flapping-wing piezoelectric ceramic heat radiation fan, which comprises: the base, and install heat dissipation assembly on the base, heat dissipation assembly includes wing skeleton, fin and piezoceramics piece, the fin comprises left wing and right wing, left wing and right wing are fixed respectively the left and right sides on wing skeleton upper portion, the piezoceramics piece comprises left piezoceramics piece and right piezoceramics piece, left side piezoceramics piece and right piezoceramics piece are fixed respectively the left and right sides of wing skeleton lower part, wing skeleton ground connection, left side piezoceramics piece connects anodally, right side piezoceramics piece connects the negative pole. The base does not occupy the draught area, and the draught area is bigger than current piezoceramics fan, and the wind channel resistance is littleer. The wing vibration mode imitates the insect wing vibration mode, and the wing vibration mode has higher aerodynamic efficiency.)

1. The utility model provides a flapping-wing type piezoceramics radiator fan which characterized in that includes:

a base, and

install heat radiation component on the base, heat radiation component includes wing skeleton, fin and piezoceramics piece, the fin comprises left wing and right wing, left wing and right wing are fixed respectively the left and right sides on wing skeleton upper portion, the piezoceramics piece comprises left piezoceramics piece and right piezoceramics piece, left side piezoceramics piece and right piezoceramics piece are fixed respectively the left and right sides of wing skeleton lower part, wing skeleton ground connection, left side piezoceramics piece connects anodally, right side piezoceramics piece connects the negative pole.

2. The ornithopter-type piezoelectric ceramic cooling fan as claimed in claim 1, wherein the upper portion of the wing frame is an inverted L-shape, and the lower portion is a rectangle.

3. The flapping piezoelectric ceramic heat dissipation fan of claim 1, wherein the wing frame is a 0.1mm thick 304 steel or copper sheet.

4. The ornithopter-type piezoelectric ceramic radiator fan as claimed in claim 1, wherein said left wing and said right wing are made of 304 steel sheets with a thickness of 0.01mm, respectively.

5. The flapping piezoelectric ceramic heat dissipation fan of claim 1, wherein the width of the left piezoelectric ceramic plate and the width of the right piezoelectric ceramic plate are the same as the width of the lower portion of the wing frame.

6. The flapping-wing piezoelectric ceramic heat dissipation fan of claim 1, further comprising a wire guide groove, wherein the cross section of the wire guide groove is in a convex structure, and the wire guide groove is clamped on one side of the base and used for protecting a bare and leaky wire.

7. The flapping-wing piezoelectric ceramic radiator fan of claim 1, wherein the left wing and the right wing are dragonfly-like wing shapes, butterfly-like wing shapes or cattail-like wing shapes, and generate 8-shaped swinging due to self inertia under vibration.

8. The ornithopter-type piezoelectric ceramic heat dissipation fan as claimed in claim 1, wherein the base has a left wire hole, a right wire hole and three wire holes.

9. The flapping piezoelectric ceramic heat dissipation fan of claim 1, wherein the wing frame, the left piezoelectric ceramic plate and the right piezoelectric ceramic plate are welded with wires, the wires of the left piezoelectric ceramic plate pass through the left wire hole and then enter the three wire holes, the wires of the right piezoelectric ceramic plate pass through the right wire hole and then enter the three wire holes, the wires of the wing frame directly enter the three wire holes, and the three wires enter the wire grooves through the three wire holes.

10. The ornithopter-type piezoelectric ceramic cooling fan as claimed in claim 1, wherein the three wires are uniformly inserted into positive/negative wire management tubes, the wire management tubes are metal rings and can tightly press and fix the wires, and the wire management tubes extend out of the wire grooves and are externally connected with a positive/negative power supply.

Technical Field

The invention relates to the field of cooling fans, in particular to a flapping-wing piezoelectric ceramic cooling fan.

Background

The existing heat dissipation fans mainly include oil bearing fans, magnetic suspension fans and ball fans. They do not avoid the problem of aging leading to significant failure rate increases and efficiency decreases. Fans suffer both mechanical and electrical failures, the mechanical failure being caused primarily by bearing wear and possibly by deformation of the fan blades and housing over time. More and more metal fan housings and fins are being replaced by plastic housings. Electrical faults are caused by the aging of the motor coils, eventually failing to rotate or grounding the coils, where mechanical faults are far more probable than electrical faults, accounting for approximately 65% of the total probability. Over time, the frequency of fan and motor failures is increasing. During gradual aging, the fan speed and air flow rate are continually reduced.

At present, a piezoelectric ceramic fan mainly comprises a piezoelectric fan fin and a piezoelectric fan driving power supply, and the working principle of the piezoelectric ceramic fan is that the inverse piezoelectric effect of the piezoelectric ceramic is utilized, the piezoelectric ceramic can deform (generate displacement) under the action of an electric field, alternating voltage with certain frequency is applied, and the fan is mechanically amplified, so that the fan effect that the wind direction is stable, the speed is high, and the fan can work for a long time is finally achieved. The piezoelectric fan has no electromagnetic interference, long service life and compact structure. The problem of life has been solved to current piezoceramics fan, but structural design has the defect, and the base hinders a large amount of draught areas, and wind-force receives this influence can reduce, can't realize best radiating effect.

Disclosure of Invention

The embodiment of the invention aims to provide a flapping-wing piezoelectric ceramic heat dissipation fan, which aims to solve the problems that the existing piezoelectric ceramic fan base occupies a large ventilation area and has large air duct resistance.

In order to achieve the purpose, the invention adopts the technical scheme that:

the embodiment provides a flapping-wing piezoelectric ceramic cooling fan, including: the base, and install heat dissipation assembly on the base, heat dissipation assembly includes wing skeleton, fin and piezoceramics piece, the fin comprises left wing and right wing, left wing and right wing are fixed respectively the left and right sides on wing skeleton upper portion, the piezoceramics piece comprises left piezoceramics piece and right piezoceramics piece, left side piezoceramics piece and right piezoceramics piece are fixed respectively the left and right sides of wing skeleton lower part, wing skeleton ground connection, left side piezoceramics piece connects anodally, right side piezoceramics piece connects the negative pole.

Furthermore, the upper part of the wing framework is of an inverted L shape, and the lower part of the wing framework is of a rectangle shape.

Further, the wing framework is a 304 steel sheet or copper sheet with the thickness of 0.1 mm.

Further, 304 steel sheets with a thickness of 0.01mm were used for the left wing and the right wing, respectively.

Furthermore, the width of the left piezoelectric ceramic piece and the width of the right piezoelectric ceramic piece are the same as the width of the lower part of the wing framework.

Furthermore, the leakage protection device also comprises a wire guide groove, the cross section of the wire guide groove is of a convex structure, and the wire guide groove is clamped on one side of the base and used for protecting the exposed and leaked wires.

Furthermore, the left wing and the right wing are dragonfly-like wing shapes, butterfly wing shapes or cattail-like wing shapes, and the 8-shaped swing is generated due to self inertia under the vibration.

Furthermore, the base is provided with a left wire hole, a right wire hole and three wire holes.

Furthermore, the lead wires are welded on the wing framework, the left piezoelectric ceramic piece and the right piezoelectric ceramic piece, the lead wires of the left piezoelectric ceramic piece penetrate through the left lead wire hole and then enter the three lead wire holes, the lead wires of the right piezoelectric ceramic piece penetrate through the right lead wire hole and then enter the three lead wire holes, the lead wires of the wing framework directly enter the three lead wire holes, and the three lead wires enter the lead wire grooves through the three lead wire holes.

Furthermore, the three wires are uniformly inserted into the positive/negative wire management pipe, the wire management pipe is a metal ring and can be tightly pressed and fixed, and the wire management pipe extends out of the wire groove and is externally connected with a positive/negative power supply.

Compared with the background technology, the invention has the following beneficial effects:

1. the bionic piezoelectric ceramic fan has the characteristics of no electromagnetic interference, simple structure and the like, and compared with the traditional fan, the bionic piezoelectric ceramic fan has low failure rate and long service life. Piezoelectric fans, as an active cooling solution, perform well in the following application environments: high reliability is required; the presence of electromagnetic interference is not allowed; expected to be dusty, corrosive or extreme temperature environments; there is a need for an environment that keeps audible noise to a minimum.

2. The base does not occupy the draught area, and the draught area is bigger than current piezoceramics fan, and the wind channel resistance is littleer.

3. The wing vibration mode imitates the insect wing vibration mode, and the wing vibration mode has higher aerodynamic efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. It is to be understood that the drawings in the following description are illustrative of specific embodiments described herein and are not to be construed as limiting the scope of the invention. It is obvious to a person skilled in the art that other embodiments and figures can of course also be obtained from the following embodiments of the invention and their figures without inventive effort.

Fig. 1 is a schematic structural diagram of a four-fan parallel connection whole according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an overall front face provided in accordance with one embodiment of the present invention;

FIG. 3 is a schematic structural view of a wing panel and wing framework provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural view of a wing frame and base joint provided in accordance with an embodiment of the present invention;

in the figure, a wing panel 1, a wing framework 2, a piezoelectric ceramic piece 3, a base 4, a wire groove 5, a left wing 1-1, a right wing 1-2, a wing framework welding spot 2-1, a left piezoelectric ceramic piece 3-1, a right piezoelectric ceramic piece 3-2, a piezoelectric ceramic piece left welding spot 3-1-1, a piezoelectric ceramic piece right welding spot 3-2-1, a three wire hole 4-1, a left wire hole 4-2-1, a right wire hole 4-2-2 and a wire management pipe 5-1.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "left", "right", and the like in the description and claims of the present application and the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1-4, the present embodiment provides a flapping-wing piezoelectric ceramic heat dissipation fan, which realizes side air outlet by simulating the vibration of an insect wing, so as to prevent a fan base from blocking an air inlet, thereby increasing a ventilation area, reducing air duct resistance, improving pneumatic efficiency, and meeting heat dissipation requirements of equipment working in a special environment or requiring an ultra-long service life. Novel piezoceramics radiator fan includes: base 4 and install heat dissipation assembly on base 4, heat dissipation assembly includes fin 1, wing skeleton 2 and piezoceramics piece 3, fin 1 comprises left wing 1-1 and right wing 1-2, left wing 1-1 and right wing 1-2 are fixed respectively the left and right sides on 2 upper portions of wing skeleton, piezoceramics piece 3 comprises left piezoceramics piece 3-1 and right piezoceramics piece 3-2, left side piezoceramics piece 3-1 and right piezoceramics piece 3-2 are fixed respectively the left and right sides of 2 lower parts of wing skeleton, wing skeleton ground connection, left side piezoceramics piece 3-1 connects the positive pole, right side piezoceramics piece 3-2 connects the negative pole.

In this embodiment, the upper portion of the wing frame 2 is an inverted L-shape, the lower portion thereof is a rectangle, and the wing frame is made of a material with a high young's modulus, such as a 304 steel sheet or a copper sheet with a thickness of 0.1mm, and has a width of 2-25 mm.

In this embodiment, the left wing 1-1 and the right wing 1-2 are made of a low young's modulus material such as a 304 thin steel plate with a thickness of 0.01mm, and are soft, and each wing is composed of a left half and a right half and has a left-right detachable structure. The left wing 1-1 and the right wing 1-2 are dragonfly-like wing shapes, butterfly wing shapes or cattail-like wing shapes, and generate 8-shaped swinging due to self inertia under vibration.

In the embodiment, the widths of the left piezoelectric ceramic piece 3-1 and the right piezoelectric ceramic piece 3-2 are the same as the width of the lower part of the wing framework 2.

In this embodiment, the wire guide device further comprises a wire guide groove 5, wherein the wire guide groove 5 is made of a rigid material, the cross section of the wire guide groove is in a convex structure, and the wire guide groove is clamped on one side of the base 4 and used for protecting a bare and leaky wire.

In the embodiment, the base 4 is made of a rigid material and has the same width as the piezoelectric ceramic plate 3, a groove with the width of about 0.6mm and the depth of about 12mm is designed on the base 4 and is used for fixing the piezoelectric ceramic plate 3 and the wing framework 2, and a left wire guide 4-2-1, a right wire guide 4-2-2 and three wire guide 4-1 are arranged at two sides of the groove.

In the embodiment, the lead wires are welded on the wing framework 2, the left piezoelectric ceramic piece 3-1 and the right piezoelectric ceramic piece 3-2, the lead wire of the left piezoelectric ceramic piece 3-1 passes through the left lead wire hole 4-2-1 and then enters the three lead wire holes 4-1, the lead wire of the right piezoelectric ceramic piece 3-2 passes through the right lead wire hole 4-2-2 and then enters the three lead wire holes 4-1, the lead wire of the wing framework 2 directly enters the three lead wire holes 4-1, and the three lead wires enter the lead wire groove 5 through the three lead wire holes 4-1.

Referring to fig. 2, the left piezoelectric ceramic plate 3-1-1 and the right piezoelectric ceramic plate 3-1-2 are arranged according to the polarity of + and-are tightly bonded to both sides of the wing frame by using quick-drying glue. The vibration of the piezoelectric ceramic pieces drives the wing framework to generate resonance, so that the function of the fan is realized.

The structure of the piezoelectric ceramic piece 3 and the wing framework 2 after assembly is inserted into the groove of the base 4, and the residual gap is filled with hot melt adhesive for fixation. The left wing 1-1 and the right wing 1-2 are adhered to two sides of the wing framework by glue, the wing pieces imitate the appearance of dragonfly wings, and the 8-shaped swing is generated by self inertia under high-speed vibration, so that the wind direction is changed from longitudinal direction to transverse direction, the ventilation area of the air duct is increased, the resistance of the air duct is reduced, and the pneumatic efficiency is improved.

Referring to fig. 4, the welding point 2-1 of the wing frame, the left welding point 3-1-1 of the piezoelectric ceramic piece, and the right welding point 3-2-1 of the piezoelectric ceramic piece are respectively welded with wires. The other end of the lead welded on the piezoelectric ceramic plate enters the three lead holes 4-1 through the left lead hole 4-2-1 and the right lead hole 4-2-2 of the base, and the lead welded on the wing framework directly enters the three lead holes 4-1. Three wires enter the wire groove 5 through the three wire holes 4-1 and are uniformly inserted into the wire management pipe 5-1 of the positive pole and the negative pole. The wire management pipe 5-1 is a thin metal circular ring and can tightly press and fix the wires. The wire management pipe 5-1 extends out of the wire groove 5 and can be externally connected with a positive/negative power supply.

It should be noted that the shape of the wing panel can be not only the shape of a dragonfly wing, but also other leaf shapes such as a butterfly wing, a cattail fan and the like. The material used for the wing frame can be a steel plate, a copper plate, other metal plates or materials with similar rigidity. The fins may be made of other low materials as well as very thin metal sheets.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.