WO2015096470A1

WO2015096470A1 - Heat dissipation module and system, control method and related device

Info

Publication number: WO2015096470A1
Application number: PCT/CN2014/082892
Authority: WO
Inventors: 洪宇平; 郝明亮; 刘伟明
Original assignee: 华为技术有限公司
Priority date: 2013-12-26
Filing date: 2014-07-24
Publication date: 2015-07-02
Also published as: CN103747656B; CN103747656A

Abstract

A heat dissipation module is used for a device provided with heat dissipation teeth. The heat dissipation module comprises a fixing apparatus and at least two vibration units, wherein each of the vibration units comprises a piezoelectric element and a solid piece. The piezoelectric element in each of the vibration units is connected to one end of the solid piece in the vibration unit. The fixing apparatus is connected to the piezoelectric element in each of the vibration units and used for fixing the module. According to a preceding technical scheme, the heat dissipation module comprises the at least two vibration units and the piezoelectric element is connected to the one end of the solid piece in any one of the vibration units. Therefore, when the piezoelectric element vibrates, the solid piece can be driven to swing, thus providing outside wind for the device provided with the heat dissipation teeth and implementing a heat dissipation effect. In addition, because rotating components such as a bearing and the like are not used any more, not only power consumption is lowered, but also noise is reduced. Also provided are a dissipation system, a control method and a related device.

Description

Heat dissipation module and system, control method and related equipment

This application claims priority to Chinese Patent Application No. 201 310733864. X, entitled "A Heat Dissipation Module and System, Control Method, and Related Equipment", filed on December 26, 2013. The entire contents are incorporated herein by reference.

Technical field

The present invention relates to the field of electronic technologies, and in particular, to a heat dissipation module and system, a control method, and related equipment. Background technique

Many devices generate a certain amount of heat when they are used. If they are not dissipated in time, it will not only affect the performance of the device itself, but also cause damage to the device in severe cases. Currently, there is a device with heat dissipating teeth that achieves natural heat dissipation through the surface of the heat dissipating teeth.

However, with the development of electronic technology, the use of equipment is becoming more and more intense, resulting in more and more heat. In many cases, this natural heat dissipation can no longer meet the heat dissipation requirements of the equipment.

'Port, for RRU (Radio Remote Unit), the traditional RRU can meet the heat dissipation requirements through its toothed surface, but with the rise of 3G, 4G and even 5G networks, the cooling requirements of RRU It is getting higher and higher, and it must be assisted by external wind power to dissipate heat.

At present, a fan is usually used to provide external wind power to the above-mentioned equipment. However, since the fan uses a rotating member such as a bearing, the power consumption is high and the noise is large.

Summary of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a heat dissipation module and system, a control method, and related equipment, so as to provide external wind power to a device having heat dissipation teeth, reduce power consumption, and reduce noise.

To this end, the technical solution to solve the technical problem in the embodiments of the present invention is:

In a first aspect, an embodiment of the present invention provides a heat dissipation module for a device having heat dissipation teeth. The heat dissipation module includes a fixing device and at least two vibration units;

Wherein each of the vibration units includes a piezoelectric element and a solid piece, and the piezoelectric element of each of the vibration units is connected to one end of the solid piece in the vibration unit;

The fixing device is coupled to a piezoelectric element in each of the vibration units for fixing the module.

In a first possible implementation manner of the first aspect, each of the piezoelectric elements is connected to an alternating current;

The alternating current causes each of the piezoelectric elements to vibrate in a first direction and a second direction at the same time; the first direction and the second direction are opposite.

With reference to the first possible implementation of the first aspect, in a second possible implementation manner of the first aspect, the heat dissipation module includes 2n the vibration unit; the η > 1 ;

Wherein each of the two vibration units is a group; the alternating current is such that at the same time, the piezoelectric element of one of the vibration units in each group vibrates in the first direction, and the other of the vibration units The piezoelectric element in the vibration vibrates in the second direction.

With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the heat dissipation module includes 2n+1 the vibration unit; the η > 1 ;

Wherein each of the 2n of the vibration units is a group; the alternating current is such that at the same time, the piezoelectric element of one of the vibration units in each group vibrates in the first direction The piezoelectric element in the other of the vibration units vibrates in the second direction.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the 2n+1 the vibration unit, except the 2n the vibration unit One of the vibration units is located at the center of the module.

In conjunction with any of the second to fourth possible implementations of the first aspect, in a fifth possible implementation of the first aspect, the two of the vibration units in each group are adjacent.

With reference to any one of the second to fourth possible implementations of the first aspect, in a sixth possible implementation of the first aspect, the piezoelectric group vibrating in the first direction in each group The vibration unit to which the component belongs is located in a first region, and the vibration unit to which the piezoelectric element vibrating in the second direction belongs to the second region, the first region and the second region The area is different. In a seventh possible implementation manner of the first aspect, each of the piezoelectric elements is connected to an alternating current;

The alternating current causes each of the piezoelectric elements to vibrate in the same direction at the same time.

With reference to the first aspect, the first or the seventh possible implementation manner of the first aspect, in the eighth possible implementation manner of the first aspect, each of the vibration units comprises a two-layer structure, and each layer structure includes at least Two of the vibration units;

Each of the vibrating units in one of the layers has the same wind direction as each of the vibrating units in the other layer structure, and the outlet paths partially overlap.

In conjunction with the eighth possible implementation of the first aspect, between the solid sheets of each of the vibrating units of the ninth possible of the other layer structure of the first aspect.

In conjunction with the first aspect, the first or the seventh possible implementation of the first aspect, in a tenth possible implementation manner of the first aspect, the fixing device is configured to fix the module to the device The top, bottom or middle.

With reference to the first aspect, the first or the seventh possible implementation of the first aspect, in an eleventh possible implementation manner of the first aspect, the fixing device is configured to fix the module to the The heat sinking teeth of the device.

In conjunction with the first aspect, the first or the seventh possible implementation of the first aspect, in a twelfth possible implementation of the first aspect, the fixing device is configured to fix the module in the On the device, the module is used to replace part of the heat dissipating teeth of the device.

In a second aspect, the embodiment of the present invention provides a heat dissipation system, where the system includes the first aspect provided by the embodiment of the present invention, or the first to the twelfth possible implementation manners of the first aspect. The heat dissipation module and the power supply;

The power supply is used to apply alternating current to each of the piezoelectric elements in the heat dissipation module.

In a third aspect, an embodiment of the present invention provides a device having a heat dissipating tooth, the device comprising the first aspect provided by the embodiment of the present invention, or the first to twelfth possible aspects of the first aspect The heat dissipation module described in the implementation.

In a fourth aspect, an embodiment of the present invention provides a method for controlling a heat dissipation module, where the heat dissipation The module includes a fixing device and at least two vibration units; wherein each of the vibration units includes a piezoelectric element and a solid piece, the piezoelectric element of each of the vibration units and one end of the solid piece in the vibration unit Connecting; the fixing device is connected to the piezoelectric element in each of the vibration units for fixing the module;

The method includes:

An alternating current is supplied to each of the piezoelectric elements.

In a first possible implementation manner of the fourth aspect, the alternating current causes each of the piezoelectric elements to vibrate in a first direction and a second direction at the same time; the first direction and the second direction are opposite .

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the heat dissipation module includes 2n the vibration unit; the η > 1 ;

With reference to the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the heat dissipation module includes 2n+1 the vibration unit; the η > 1 ;

With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the 2n+1 the vibration unit, except the 2n the vibration unit One of the vibration units is located at the center of the module.

In conjunction with any of the second to fourth possible implementations of the fourth aspect, in a fifth possible implementation of the fourth aspect, the two of the vibration units in each group are adjacent.

With reference to any one of the second to fourth possible implementation manners of the fourth aspect, in the sixth possible implementation manner of the fourth aspect, the piezoelectric group vibrating in the first direction in each group The vibration unit to which the component belongs is located in a first area, and the vibration unit to which the piezoelectric element vibrating in the second direction belongs to the second area, the first area and the second The area is different. In a seventh possible implementation of the fourth aspect, the alternating current causes each of the piezoelectric elements to vibrate in the same direction at the same time.

According to the above technical solution, the heat dissipation module in the embodiment of the present invention includes at least two vibration units, each vibration unit includes a piezoelectric element and a solid piece. In any one of the vibration units, the piezoelectric element is connected to one end of the solid piece, When the piezoelectric element vibrates, it can drive the solid piece to oscillate, thereby providing external wind power to the device having the heat dissipating tooth, thereby achieving a heat dissipation effect. Further, in the embodiment of the invention, the rotating member such as a bearing is no longer used, so that power consumption is reduced and noise is reduced.

DRAWINGS

1 is a schematic structural diagram of a first embodiment of a heat dissipation module according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a heat dissipation unit according to an embodiment of the present invention;

3 is a first arrangement relationship between a heat dissipation module and an RRU according to an embodiment of the present invention; FIG. 4 is a second arrangement relationship between a heat dissipation module and an RRU according to an embodiment of the present invention; FIG. 6 is a schematic structural diagram of a second embodiment of a heat dissipation module according to an embodiment of the present invention; FIG. FIG. 8 is a schematic structural diagram of a third embodiment of a heat dissipation module according to an embodiment of the present invention; FIG. 9 is a vibration mode of the heat dissipation module shown in FIG. 8 including an even number of vibration units; FIG. The heat dissipation module includes another vibration mode of the even number of vibration units; FIG. 11 is a vibration mode of the heat dissipation module shown in FIG. 8 including an odd number of vibration units; FIG. 12 is a heat dissipation module shown in FIG. Another vibration mode of the unit; FIG. 13 is a schematic diagram of a vibration unit in the heat dissipation module shown in FIG. 7 in failure; FIG. 14 is a vibration sheet in the heat dissipation module shown in FIG. Schematic structural diagram of a fourth embodiment of the present heat dissipating module 15 according to an embodiment of the invention;; failure schematic view of the heat dissipating module 16 is shown in FIG. 15 a schematic view of a preferred structure;

FIG. 17 is a schematic structural diagram of a specific embodiment of a heat dissipation system according to an embodiment of the present invention. detailed description

For devices with heat sinking teeth such as RRUs and chip heatsinks, natural heat dissipation is usually achieved by the heat dissipating teeth on the surface.

However, with the development of electronic technology, the use of equipment is becoming more and more intense, resulting in more and more heat. In many cases, this natural heat dissipation can no longer meet the heat dissipation requirements of the equipment. For example, for RRU, the traditional RRU can meet the heat dissipation requirements through its toothed surface. However, with the rise of 3G, 4G and even 5G networks, the heat dissipation requirements of RRUs are getting higher and higher, and the external wind must be used to help them dissipate heat.

Currently, fans are often used to provide outside wind power to the above devices, such as by a fan providing wind from the top or side of the RRU. Fans generally include rotating parts such as blades and bearings, and rotating parts such as bearings are inevitably subject to high power consumption and high noise.

In addition, this cooling method has the following disadvantages:

1. Due to the size limitation of fan blades and rotating parts, the fan occupies a large space and cannot be used for small additional space. If the fan is made into the same product as a device with heat sinking teeth (such as RRU), the size of the product cannot be made thin.

2. Since the number of fans is usually limited, the failure has a great influence on the heat dissipation effect.

3. Due to the generally short service life of rotating parts such as bearings, high maintenance costs are required.

4, easy to accumulate.

In the embodiment of the present invention, a heat dissipation module and system, a control method, and related equipment are provided to provide external wind power to a device having heat dissipation teeth, reduce power consumption, and reduce noise.

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terms "first", "second", "third", "fourth" and the like in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order. Or prioritization. It is to be understood that the data so used may be interchanged as appropriate, so that the embodiments described herein can be implemented in a sequence other than what is illustrated or described herein. In addition, the terms "include" and "Having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but Other steps or units not explicitly listed or inherent to such processes, methods, products or devices may be included.

As shown in FIG. 1, the embodiment of the present invention provides a first embodiment of a heat dissipation module. The heat dissipation module of the embodiment includes at least two vibration units 101 and a fixing device 102. For example, at least two of the vibration units 101 in Fig. 1 specifically include m vibration units, that is, a vibration unit 1011, a vibration unit 1012, a vibration unit 1013, a vibration unit 1014, and a vibration unit 101m, where m > It should be noted that, in FIG. 1 , the arrangement of the respective vibration units is exemplified as a single shape. In fact, each of the vibration units may be in another arrangement manner, which is not limited in the embodiment of the present invention.

The heat dissipating module of this embodiment is used for a device having heat dissipating teeth. That is to say, the heat dissipating module of the embodiment actually provides external wind power to the device having the heat dissipating teeth, thereby achieving heat dissipation. Wherein, each of the vibration units of the embodiment includes a piezoelectric element and a solid piece, and the piezoelectric element of each of the vibration units is connected to one end of the solid piece in the vibration unit.

For example, as shown in FIG. 2, any of the vibration units of the embodiment includes a piezoelectric element 201 and a solid piece.

202. The piezoelectric element 201 is connected to one end of the solid piece 202. When the piezoelectric element 201 is energized, a stretching effect can be generated to generate vibration. Since the piezoelectric element 201 is connected to one end of the solid piece 202, the piezoelectric element 201 can drive the solid piece 202 to oscillate, thereby generating wind power. Specifically, when the piezoelectric element 201 is connected to the alternating current, the piezoelectric element 201 can drive the solid piece 202 to reciprocate in the direction of the arrow A. Therefore, the wind direction is the end of the piezoelectric piece 201 connected to the solid piece 202 by the solid piece 202 to the solid piece 202. The one end of the piezoelectric piece 201 is not connected, that is, the forward air (generally the direction indicated by the arrow B differs by 60), and the air inlet direction may be the left and right sides, the upper and lower sides, and the rear part of the heating module. Any one or more directions.

In the present embodiment, the fixture 102 is coupled to the piezoelectric elements of the respective vibration units for fixing the heat dissipation module. For example, as shown in Figure 1, the fixture 102 includes a plurality of sub-devices, each for securing a vibrating unit. Alternatively, the fixture 102 may be a device that secures all of the vibration units to secure the heat sink module. This embodiment of the present invention does not limit this.

According to the foregoing technical solution, the heat dissipation module in this embodiment includes at least two vibration units. 101. Each of the vibration units includes a piezoelectric element and a solid piece. In one vibration unit, the piezoelectric element is connected to one end of the solid piece, so that when the piezoelectric element vibrates, the solid piece can be swung, thereby generating and inventing the embodiment of the present invention. The rotating parts such as bearings are no longer used, so that power consumption is reduced and noise is reduced. Moreover, the heat dissipation module in this embodiment also has functions of dust removal, instead of vibration disturbance sheets.

In addition, the solution of this embodiment has the following advantages:

1. In the present embodiment, the air outlet means for driving the solid piece by the piezoelectric element is used, so that it is not necessary to use a rotating member such as a blade and a bearing, and the piezoelectric element and the solid piece in this embodiment are compared with the blade and the blade. The rotating parts of the bearing and the like are small in size, and the fixing device only needs to realize the fixed heat dissipating module, and the size is not limited. Therefore, the heat dissipating module of the embodiment occupies less space and can be applied to a case where the extra space is small. . If the heat dissipating module of the embodiment is made of the same product as the device having the heat dissipating teeth (for example, RRU), the size of the product can be made very thin, and the heat dissipating module can be disposed not only on the device having the heat dissipating teeth (for example, RRU). The top and side can also be placed in the middle of a device with heat sinking teeth (such as RRU).

2. In this embodiment, a combination of a plurality of vibration units is used, and thus the failure of one unit has little effect on the heat dissipation effect.

3. In this embodiment, the rotating member such as a bearing is no longer used, and the life of the piezoelectric element and the solid piece is relatively long. Therefore, the heat dissipation module of the embodiment has a longer life and lower maintenance cost.

4. In this embodiment, a plurality of vibrating units are used to reciprocate the vibration to realize the air blowing, so that it is difficult to accumulate dust.

The solid sheet in this embodiment may be a sheet metal, a plastic sheet, a wood sheet, a cardboard, or a sheet-like solid made of various synthetic materials. The piezoelectric element is a device made of a piezoelectric effect of a material, and may have a shape such as a sheet shape or a rod shape.

In a vibrating unit of this embodiment, the piezoelectric element is connected to one end of the solid piece. At this time, as shown in FIG. 2, the solid piece is longer than the piezoelectric element, and the entire piezoelectric element is connected to one end of the solid piece. . Alternatively, as shown in Fig. 2, the size of the solid piece and the piezoelectric element is not limited, and a part of the piezoelectric element is connected to one end of the solid piece. In the present embodiment, the wind is mainly provided by the reciprocating oscillation of the end of the solid piece which is not connected to the piezoelectric element. In this embodiment, the distance between the respective vibration units may be set to be greater than a preset threshold, and the preset threshold is determined according to the amplitude of the swing of the solid piece.

The fixture 102 of the present embodiment is coupled to the piezoelectric elements of the respective vibration units for fixing the heat dissipation module. Here, the fixing means 102 may be connected to one end of the piezoelectric element which is not connected to the solid piece, thereby reducing the influence on the vibration of the piezoelectric element.

In this embodiment, the heat dissipating module may be fixed by the fixing device 102 to the outside of the device having the heat dissipating teeth of the embodiment, or may be fixed on the device. The following is specifically described in conjunction with the drawings. For the sake of convenience, the device having the heat dissipating teeth of the embodiment is specifically an RRU. For example, the device with the heat dissipating teeth of the embodiment may be other than the RRU, which is not limited by the embodiment of the present invention.

The fixing device 102 may be configured to fix the heat dissipation module 301 of the embodiment to the outside of the RRU 302. For example, as shown in FIG. 3, the heat dissipation module 301 is fixed in a direction facing the heat dissipating teeth 3021 of the RRU 302, and the air blowing direction is opposite to the heat dissipation. Teeth 3021.

The fixing device 102 may be configured to fix the heat dissipation module 301 of the embodiment on the RRU 302. For example, as shown in FIG. 4, the heat dissipation module 301 is fixed on the top of the RRU 302. In this case, the air outlet direction may be from the top of the RRU 302 to the bottom of the RRU 302. End the wind. As shown in FIG. 5, the heat dissipation module 301 may also be fixed to the bottom end of the RRU 302. In this case, the air outlet direction may be from the bottom end of the RRU 302 to the top end of the RRU 302. As shown in FIG. 6, the heat dissipation module 301 can also be fixed in the middle of the RRU 302, and the air outlet direction can be set according to actual needs.

When the fixing device 102 fixes the heat dissipation module 301 on the RRU 302, the fixing device 102 may fix the heat dissipation module 301 on the heat dissipation teeth 3031 of the RRU 302, or may remove a part of the heat dissipation teeth, and fix the heat dissipation module 301 on the RRU 302. The heat sink module replaces some of the heat sinking teeth of the RRU302.

In the embodiment of the present invention, the reciprocating vibration of the piezoelectric element drives the fixed piece to oscillate, thereby generating wind power and achieving a heat dissipation effect. In fact, the swinging direction of each of the fixing pieces has a certain influence on the air blowing effect, which will be described below by two embodiments.

First, the case where the swing directions of the respective fixing pieces are all the same will be described by way of an embodiment.

As shown in FIG. 7, the embodiment of the present invention provides a second embodiment of a heat dissipation module, which is configured to have heat dissipation. The device of the tooth, the heat dissipation module of the embodiment includes at least two vibration units 701 and a fixing device 702. For example, at least two vibration units 701 in FIG. 7 specifically include m vibration units, that is, vibration units.

701 1. Vibration unit 7012, vibration unit 701 3. Vibration unit 7014 Vibration unit 701m, where m > 2.

Wherein, each of the vibration units of the embodiment includes a piezoelectric element and a solid piece, and the piezoelectric element of each of the vibration units is connected to one end of the solid piece in the vibration unit. The fixture 702 is coupled to the piezoelectric elements of the respective vibration units for fixing the heat dissipation module.

Each of the piezoelectric elements of this embodiment is supplied with an alternating current which causes each of the piezoelectric elements to vibrate in the same direction at the same time.

When the piezoelectric element is energized, the piezoelectric element vibrates, so that the solid piece can be swung to generate wind power. Among them, the vibration direction of the piezoelectric element is related to the positive and negative of the energization, and therefore, when the piezoelectric element is supplied with the alternating current, the piezoelectric element can be caused to reciprocate.

Therefore, in the present embodiment, each of the piezoelectric elements reciprocates under the action of an alternating current, wherein each of the piezoelectric elements vibrates in the same direction at the same time, so that the respective solid pieces are also swung in the same direction at the same timing. For example, as shown in Fig. 7, at each time, each of the piezoelectric elements vibrates to the right, and therefore, all of the solid pieces are swung to the right, so that the wind direction is directed to the upper right direction. At the next moment, each of the piezoelectric elements can be all vibrated to the left, so that each of the solid pieces is swung to the left.

In the present embodiment, the alternating current may be a periodic signal, and at this time, the respective piezoelectric elements periodically reciprocate.

In this embodiment, the adjustment of the wind power can be achieved by adjusting the frequency or amplitude of the alternating current, or the size of the solid piece or the piezoelectric element. For example, if the AC frequency is increased, the frequency of the solid piece oscillation is increased, thereby increasing the wind power.

As is apparent from the above-described technical solutions, in the present embodiment, a vibration mode of each of the piezoelectric elements is provided, that is, each of the piezoelectric elements reciprocates, and at the same time, the vibration directions of the respective piezoelectric elements are all the same.

However, in this vibration mode, the co-directional vibration causes the vibration amount to be superimposed, so that the entire heat dissipation module repeatedly sways, and the vibration energy is consumed on the fixing device, and the utilization is insufficient, and the wind direction is followed by the piezoelectric element. The direction of vibration changes, so the wind is more divergent, resulting in less wind. Therefore, in order to minimize these problems, the swing directions of the respective fixing pieces can be made to be different directions. See the specific embodiment below for details.

As shown in FIG. 8, the embodiment of the present invention provides a third embodiment of a heat dissipation module for an apparatus having heat dissipating teeth. The heat dissipation module of the embodiment includes at least two vibration units 801 and a fixing device 802. For example, at least two vibration units 801 in FIG. 8 specifically include m vibration units, that is, vibration units.

801 1. Vibration unit 8012, vibration unit 801 3. Vibration unit 8014 Vibration unit 801m, where m > 2.

Wherein, each of the vibration units of the embodiment includes a piezoelectric element and a solid piece, and the piezoelectric element of each of the vibration units is connected to one end of the solid piece in the vibration unit. The fixture 802 is coupled to the piezoelectric elements of the respective vibration units for fixing the heat dissipation module.

Each of the piezoelectric elements of the present embodiment is supplied with an alternating current that causes each of the piezoelectric elements to vibrate in the first direction and the second direction at the same time; the first direction and the second direction are opposite.

In this embodiment, each of the piezoelectric elements reciprocates under the action of an alternating current, wherein each of the piezoelectric elements vibrates in the first direction and the second direction at the same time, so that the respective solid pieces are also respectively turned to the first at the same time. The direction and the second direction swing. For example, as shown in Fig. 8, at a certain timing, the piezoelectric element 801 1, the piezoelectric element 801 3, and the piezoelectric element 801m vibrate to the right, and the piezoelectric element 8012 and the piezoelectric element 8014 vibrate to the left. At the next moment, each piezoelectric element can vibrate in the opposite direction.

In the present embodiment, the alternating current may be a periodic signal, and at this time, the respective piezoelectric elements periodically reciprocate. In this embodiment, the adjustment of the wind power can also be achieved by adjusting the frequency or amplitude of the alternating current, or the size of the solid piece or the piezoelectric element.

As is apparent from the above-described technical solutions, in the present embodiment, a vibration mode of each piezoelectric element is provided, that is, each piezoelectric element reciprocates, and at the same time, each piezoelectric element vibrates in two opposite directions. It can be seen that, compared with the embodiment shown in Fig. 7, all of the piezoelectric elements in this embodiment are not vibrated in the same direction, so that the amount of vibration is relatively small, so that the repeated shaking of the entire heat dissipating module is slowed down. Moreover, the vibration energy is not consumed on the fixing device, the vibration energy is utilized more fully, and the wind direction is slowed down as the direction of the vibration of the piezoelectric element is changed, so that the wind force is stronger.

In fact, a more preferred way of this embodiment is that at the same time, to the opposite side The number of piezoelectric elements that are vibrating is substantially equal. Thereby the amount of vibration can be offset as much as possible. For example, when the number of piezoelectric elements of the present embodiment is an even number, the number of piezoelectric elements vibrating in the first direction and the second direction is equal. When the number of piezoelectric elements of the present embodiment is an odd number, the number of piezoelectric elements vibrating in the first direction and the second direction differs by one. The two specific cases are described below.

In the first case, the heat dissipation module in this embodiment includes 2n of the vibration units; the η > 1. That is, the number of the vibration cells in the present embodiment is an even number, and therefore the number of piezoelectric elements is an even number.

Wherein each of the two vibration units is a group; the alternating current is such that at the same time, the piezoelectric element of one of the vibration units in each group vibrates in the first direction, and the other of the vibration units The piezoelectric element vibrates in the second direction. That is, at the same time, the piezoelectric elements having n vibration units in the heat dissipation module vibrate in the first direction, and the piezoelectric elements having the n vibration units vibrate in the second direction. At this time, the vibration amounts cancel each other, and the heat dissipation module does not repeatedly shake. Moreover, the vibration energy is not consumed on the fixed device, the vibration energy is utilized more fully, and the wind direction is fixed, and does not change with the change of the vibration direction, so the wind is concentrated and the wind is stronger. The inventors have found through experiments that, in the case where the number of piezoelectric elements is equal, the vibration mode of the wind is increased by 7.5% and the amplitude is reduced by three times compared with the vibration mode shown in Fig. 7.

Two preferred modes of vibration of this type of vibration are illustrated below with reference to Figures 9 and 10, respectively.

For example, as shown in FIG. 9 , n is specifically 4, that is, the heat dissipation module in the embodiment includes 8 vibration units: a vibration unit 8011, a vibration unit 801 1 , a vibration unit 8012 , a vibration unit 801 3 , a vibration unit 8014 , and a vibration. The unit 8015, the vibration unit 8016, the vibration unit 8017, and the vibration unit 8018. In Fig. 9, the vibration unit 8011 and the vibration unit 8012 are a group, the vibration unit 801 3 and the vibration unit 8014 are a group, the vibration unit 8015 and the vibration unit 8016 are a group, and the vibration unit 8017 and the vibration unit 8018 are a group. At the same time, in each group, the piezoelectric element having one vibration unit vibrates in the first direction (specifically, rightward in FIG. 9), and the piezoelectric element of one vibration unit is in the second direction (specifically, FIG. Left) vibration. For example, in the group including the vibration unit 801 1 and the vibration unit 8012, the piezoelectric element of the vibration unit 8011 vibrates to the right, thereby causing the solid piece of the vibration unit 8011 to swing to the right, and the piezoelectric element of the vibration unit 8012 to vibrate to the left, Therefore, the solid piece of the vibration unit 8012 is caused to swing to the left.

And in FIG. 9, two vibration units in each group are adjacent, for example, including a vibration unit 801 1 In the group of the vibration unit 8012, the vibration unit 801 1 and the vibration unit 8012 are adjacent, that is, there is no other vibration unit between the vibration unit 8011 and the vibration unit 8012. Since the solid piece of the vibration unit 8011 swings to the right, the solid piece of the vibration unit 8012 swings to the left, and thus the two vibration units are vented upward.

It can be seen that in the vibration mode shown in FIG. 9, the piezoelectric elements of the adjacent two vibration units have opposite vibration directions, so that the spiral directions of the solid sheets are opposite, the vibration amounts cancel each other, and the heat dissipation module does not repeatedly sway. In the case, and the vibration energy is not consumed on the fixing device, the vibration energy is utilized more fully, and the air outlet direction of the heat dissipation module is fixed, and does not change with the vibration direction of the piezoelectric element, so the wind is concentrated and the wind force is stronger.

For example, as shown in FIG. 10, n is specifically 4, that is, the heat dissipation module in this embodiment includes 8 vibration units: a vibration unit 8011, a vibration unit 8011, a vibration unit 8012, a vibration unit 801 3, a vibration unit 8014, and a vibration unit. 8015, a vibration unit 8016, a vibration unit 8017, and a vibration unit 8018. In Fig. 10, the vibration unit 8011 and the vibration unit 8012 are a group, the vibration unit 801 3 and the vibration unit 8014 are a group, the vibration unit 8015 and the vibration unit 8016 are a group, and the vibration unit 8017 and the vibration unit 8018 are a group. At the same time, in each group, the piezoelectric element having one vibration unit vibrates in the first direction (specifically, rightward in FIG. 10), and the piezoelectric element of one vibration unit is in the second direction (specifically in FIG. 10 Vibrate to the left).

And in FIG. 10, the vibration unit to which the piezoelectric element vibrating in the first direction belongs in each group is located in the first region, and the vibration unit to which the piezoelectric element vibrating in the second direction belongs to the second region in each group The first area is different from the second area. Specifically, the piezoelectric elements of the vibration unit 8011, the vibration unit 8013, the vibration unit 8015, and the vibration unit 8017 both vibrate in a first direction, the four vibration units are located in the first region, and the vibration unit 8012, the vibration unit 8014, and the vibration The piezoelectric elements of the unit 8016 and the vibrating unit 8018 both vibrate in a second direction, the four vibrating units being located in the second region, the two regions being different, that is, having no overlapping portions. In fact, in Figure 10, the two regions are adjacent.

It can be seen that in the vibration mode shown in FIG. 10, at the same time, since the swinging directions of the solid pieces of the first region and the second region are opposite, the vibration amounts cancel each other, and the heat dissipation module does not repeatedly sway. Moreover, the vibration energy is not consumed on the fixing device, the vibration energy is utilized more fully, and the air outlet direction of the heat dissipation module is fixed, and does not change with the vibration direction of the piezoelectric element, so the wind is concentrated and the wind force is stronger. In the second case, the heat dissipation module in this embodiment includes 2n+1 of the vibration units; the n>L, that is, the number of the vibration units in the embodiment is an odd number, and thus the piezoelectric element The number is an odd number.

Wherein, in the 2n vibration units, each of the two vibration units is a group; the alternating current is such that at the same time, the piezoelectric element of one of the vibration units in each group vibrates in the first direction, and The piezoelectric element in one of the vibration units vibrates in the second direction. That is, at the same time, the piezoelectric elements having n vibration units in the heat dissipation module vibrate in the first direction, and the piezoelectric elements having the n vibration units vibrate in the second direction. At this time, the vibration amounts cancel each other, and the heat dissipation module does not appear to be repeatedly shaken. Moreover, the vibration energy is not consumed on the fixed device, the vibration energy is utilized more fully, and the direction of the wind is fixed, and does not change with the change of the vibration direction. Therefore, the wind is more concentrated and the wind is stronger. Two preferred modes of vibration of this type of vibration are illustrated below with reference to Figures 11 and 12, respectively.

For example, as shown in FIG. 11, n is specifically 4, that is, the heat dissipation module in this embodiment includes 9 vibration units: a vibration unit 8011, a vibration unit 8011, a vibration unit 8012, a vibration unit 801 3, a vibration unit 8014, and a vibration unit. 8015, a vibration unit 8016, a vibration unit 8017, a vibration unit 8018, and a vibration unit 8019. In FIG. 11, the vibration unit 8011 and the vibration unit 8012 are a group, the vibration unit 801 3 and the vibration unit 8014 are a group, the vibration unit 8015 and the vibration unit 8016 are a group, and the vibration unit 8017 and the vibration unit 8018 are a group. . At the same time, in each group, the piezoelectric element having one vibration unit vibrates in the first direction (specifically, rightward in Fig. 11), and the piezoelectric element of one vibration unit is in the second direction (specifically in Fig. 11) Left) vibration. And at the moment, in the 2n+1 vibration units, one of the vibration units except the 2n vibration units, that is, a vibration unit that is not a group with any vibration unit, ie The vibration unit 8019 may vibrate in the first direction or in the second direction.

And in FIG. 11, two vibration units in each group are adjacent, for example, in a group including the vibration unit 8011 and the vibration unit 8012, the vibration unit 801 1 and the vibration unit 8012 are adjacent, that is, the vibration unit 8011 There is no other vibration unit between the vibration unit 8012 and the vibration unit 8012. Since the solid piece of the vibration unit 8011 swings to the right, the solid piece of the vibration unit 8012 swings to the left, so the two vibration units are vented upward.

It can be seen that in the vibration mode shown in FIG. 11, except for the vibration unit 8019, two adjacent ones The piezoelectric elements of the vibrating unit have opposite vibration directions, so that the swinging directions of the solid sheets are opposite, the amounts of vibration cancel each other, and the amount of vibration generated by the vibrating unit 8019 is also small, so that the repeated shaking of the heat dissipating module is also very small, and there are few The vibration energy is consumed on the fixture, and the vibration energy is fully utilized. In addition, the air outlet direction of the heat dissipation module is fixed, and does not change with the vibration direction of the piezoelectric element, so the wind is concentrated and the wind is stronger.

For example, as shown in FIG. 12, n is specifically 4, that is, the heat dissipation module in this embodiment includes 9 vibration units: a vibration unit 8011, a vibration unit 8011, a vibration unit 8012, a vibration unit 801 3, a vibration unit 8014, and a vibration unit. 8015, a vibration unit 8016, a vibration unit 8017, a vibration unit 8018, and a vibration unit 8019. In Fig. 12, the vibration unit 8011 and the vibration unit 8012 are a group, the vibration unit 801 3 and the vibration unit 8014 are a group, the vibration unit 8015 and the vibration unit 8016 are a group, and the vibration unit 8017 and the vibration unit 8018 are a group. At the same time, in each group, the piezoelectric element having one vibration unit vibrates in the first direction (specifically, rightward in Fig. 12), and the piezoelectric element of one vibration unit is in the second direction (specifically in Fig. 12) Left) vibration. And at the moment, in the 2n+1 vibration units, one of the vibration units except the 2n vibration units, that is, a vibration unit that is not a group with any vibration unit, ie The vibration unit 8019 may vibrate in the first direction or in the second direction.

And in FIG. 12, the vibration unit to which the piezoelectric element vibrating in the first direction belongs in each group is located in the first region, and the vibration unit to which the piezoelectric element vibrating in the second direction in each group belongs is located in the second region. The first area is different from the second area, that is, the portion that does not overlap. Specifically, the piezoelectric elements of the vibration unit 8011, the vibration unit 8013, the vibration unit 8015, and the vibration unit 8017 both vibrate in a first direction, the four vibration units are located in the first region, and the vibration unit 8012, the vibration unit 8014, and the vibration The piezoelectric elements of unit 8016 and vibration unit 8018 both vibrate in a second direction, the four vibrating units being located in a second region, the two regions being different.

It can be seen that in the vibration mode shown in Fig. 12, at the same time, since the swinging directions of the respective solid pieces of the first region and the second region are opposite, the vibration amounts cancel each other, and the vibration amount generated by the vibration unit 8019 is also small. Therefore, the repeated sloshing of the heat dissipation module is also very small, only a small amount of vibration energy is consumed on the fixing device, the vibration energy is utilized sufficiently, and the air outlet direction of the heat dissipation module is fixed, and does not vibrate with the piezoelectric element. The direction changes, so the wind is concentrated and the wind is stronger.

Considering the minimization of vibration transmission, in the second case, that is, the number of vibration units is odd At this time, one of the vibration units other than the 2n of the vibration units may be located at the center of the module. For example, in FIGS. 11 and 12, the vibration unit 8019 is disposed at the center of the entire module. Or when the heat dissipating module is fixed to the device having the heat dissipating teeth, one of the vibrating units except the 2n of the vibrating units is located at the center of the entire device, thereby further reducing the amount of vibration.

It should also be noted that in Fig. 9 and Fig. 11, even if one or more vibration units fail, the other vibration units are not affected. First look at Figure 7. At the same time, the piezoelectric sheets of each vibration unit vibrate in the same direction. In this way, compared with the vibration mode in the third embodiment of the heat dissipation module, when the number of vibration units is the same, the air discharge effect is poor. However, if the wind is increased, the spacing between the vibrating units needs to be reduced. If one vibrating unit fails, it is likely that the vibrating unit will be adjacent to the vibrating unit as shown in Fig. 13. Collision will not only generate noise, but will also accelerate the failure of two adjacent vibration units, and the entire thermal module will soon fail.

In the heat dissipation module shown in Figs. 9 and 11, except for the vibration unit 8019, even if one vibration unit fails, it does not collide with the remaining vibration unit. And compared to Figure 7, the wind is stronger. The vibration unit in the embodiment of the present invention may be provided in a multi-layered structure, and the wind layer is advanced to achieve an effect of reinforcing the wind. This will be described below by way of an embodiment.

As shown in FIG. 15, the embodiment of the present invention provides a third embodiment of a heat dissipation module for an apparatus having heat dissipating teeth. The heat dissipation module of the embodiment includes at least two vibration units 1501 and a fixing device 1502. Each of the vibration units constitutes a two-layer structure, and each layer structure includes at least two of the vibration units. Therefore, the heat dissipation module in the embodiment of the present invention actually includes at least four vibration units. For example, in FIG. 15, the heat dissipation module includes 2m vibration units, that is, the vibration unit 1511A, the vibration unit 1512A, the vibration unit 151 3A, ..., the vibration unit 151mA, the vibration unit 1511B, the vibration unit 1512B, the vibration unit 151 3B, ... , vibration unit 15 ImB. The vibration unit 1511 A, the vibration unit 1512 A, the vibration unit 151 3A, ..., the vibration unit 151mA constitute a layer structure 1501A, the vibration unit 1511B, the vibration unit 1512B, the vibration unit 151 3B, ..., the vibration unit 151mB form a layer Structure 1501B.

Each of the vibration units of the present embodiment includes a piezoelectric element and a solid piece, and the piezoelectric element of each of the vibration units is connected to one end of the solid piece in the vibration unit. The fixing device 1502 is connected to the piezoelectric element in each of the vibration units for fixing the heat dissipation module. The wind direction of the vibration unit is the same, wherein an air outlet path of each of the vibration units in one layer structure partially overlaps an air outlet path of each of the vibration units in another layer structure. As shown in FIG. 15, the vibration directions of the respective vibration units of one layer structure 1501A and the vibration units of one layer structure 1501B are the same, and the air outlet paths partially overlap, so that the wind generated by one layer structure 1501A and the other layer are The wind generated by the structure 1501B is superimposed, thereby solving the problem of the suckback airflow and strengthening the wind.

In this embodiment, it is also possible to insert a layout of the vibration unit in the two-layer structure, wherein the piezoelectric element of each of the vibration units in one layer structure is located in each of the vibration units in the other layer structure Between the solid pieces. For example, as shown in Fig. 16, the piezoelectric elements of the respective vibration units in the one-layer structure 1501A are located between the solid sheets of the respective vibration units of the one-layer structure 1501B, thereby saving space.

Of course, the embodiment of the present invention can also use more layers of structures to achieve the effect of wind layer propulsion.

In addition, the embodiment of the present invention may also implement a three-dimensional interleaving structure by a plurality of heat dissipating modules, for example, a plurality of heat dissipating modules are dislocated in various directions. Each heat dissipation module can be set in parallel or at a certain angle.

Referring to FIG. 17, the embodiment of the present invention further provides a specific embodiment of a heat dissipation system. In this embodiment, the heat dissipation system includes an embodiment 1701 of any heat dissipation module provided by the embodiment of the present invention, and a power supply 1702.

The power supply 1702 is for supplying alternating current to the respective piezoelectric elements in the heat dissipation module 1701. For example, in FIG. 17, the heat dissipation module 1701 includes m vibration units and fixing means, wherein each vibration unit includes a piezoelectric element and a solid piece, and therefore, the power supply 1702 is used to connect alternating current to each of the m vibration elements. .

The alternating current supplied from the power supply in the present embodiment allows the respective piezoelectric elements to vibrate in the manner shown in any of Figs. 7 to 12.

According to the foregoing technical solution, the heat dissipation system in this embodiment includes a heat dissipation module and a power supply, and the heat dissipation module includes at least two vibration units, and each vibration unit includes a piezoelectric element and a solid piece. In one vibration unit, the piezoelectric element The component is connected to one end of the solid piece, so when the power supply is pressed When the electrical component is connected to the alternating current, the piezoelectric component reciprocates and vibrates, thereby driving the solid piece to reciprocate and swing, and providing external wind power to the device having the heat dissipating tooth to realize the heat dissipation effect. Further, in the embodiment of the invention, the rotating member such as a bearing is no longer used, so that power consumption is reduced and noise is reduced.

The device includes an embodiment of any of the heat dissipation modules provided by the embodiments of the present invention.

In this embodiment, the device to be heat-dissipating teeth may be a communication device, such as an RRU or the like, or may be another device, such as a chip heat sink or the like.

According to the above technical solution, the device with heat dissipating teeth in the embodiment includes a heat dissipating module, and the heat dissipating module includes at least two vibrating units, each of the vibrating units includes a piezoelectric element and a solid piece, and in one vibrating unit, the piezoelectric element The element is connected to one end of the solid piece, so that when the piezoelectric element vibrates, the solid piece can be swung to provide external wind power to the apparatus of the embodiment to achieve a heat dissipation effect. Further, in the embodiment of the invention, the rotating member such as a bearing is no longer used, so that power consumption is reduced and noise is reduced.

For a specific embodiment of the heat dissipating system, and a specific embodiment of the device having the heat dissipating teeth, the description is relatively simple. For the related matters, refer to the first to fourth embodiments of the heat dissipating module provided by the embodiment of the present invention.

The embodiment of the present invention further provides a specific embodiment of the method for controlling the heat dissipation module. In this embodiment, the heat dissipation module may be any embodiment of the heat dissipation module provided by the embodiment of the present invention.

When the heat dissipation module of the embodiment is the first embodiment of the heat dissipation module provided by the embodiment of the present invention, the heat dissipation module of the embodiment includes at least two vibration units 101 and a fixing device 102 as shown in FIG.

Wherein each of the vibration units includes a piezoelectric element and a solid piece, and the piezoelectric element of each of the vibration units is connected to one end of the solid piece in the vibration unit. The fixing device 102 is connected to the piezoelectric element in each of the vibration units for fixing the heat dissipation module.

The method of this embodiment includes:

The respective piezoelectric elements in the heat dissipation module of the present embodiment are supplied with alternating current.

When the piezoelectric element is energized, the piezoelectric element vibrates, so that the solid piece can be swung to generate wind power. Among them, the vibration direction of the piezoelectric element is related to the positive and negative of the energization, and therefore, when the piezoelectric element is supplied with the alternating current, the piezoelectric element can be caused to reciprocate. According to the above technical solution, in the present embodiment, alternating current is applied to the respective piezoelectric elements, so that the piezoelectric elements generate reciprocating vibrations, which can drive the solid piece to oscillate, and provide external wind power to the device having the heat dissipating teeth to achieve a heat dissipating effect. Further, in the embodiment of the invention, the rotating member such as a bearing is no longer used, so that power consumption is reduced and noise is reduced.

The alternating current of the present embodiment can cause the respective piezoelectric elements to vibrate in the manner shown in any of Figs. For a brief description, refer to the second embodiment and the third embodiment of the heat dissipation module provided by the embodiment of the present invention.

For example, as shown in Fig. 7, the alternating current of the present embodiment allows each piezoelectric element to vibrate in the same direction at the same time. That is to say, the positive and negative directions of the alternating current through the respective piezoelectric elements are the same at this time.

For example, as shown in Fig. 8, the alternating current of the present embodiment may cause the respective piezoelectric elements to vibrate in the first direction and the second direction at the same time; the first direction and the second direction are opposite. In one of the more preferred modes, the number of piezoelectric elements vibrating in two opposite directions is substantially equal at the same time. The following description will be specifically given when the number of vibration units is even and odd, respectively.

When the number of vibration units is an even number, that is, when the heat dissipation module includes 2n of the vibration units, η > 1. Each of the two vibration units is a group; the alternating current is such that at the same time, the piezoelectric element of one of the vibration units in each group vibrates in the first direction, and the other of the vibration units The piezoelectric element vibrates in the second direction. At this time, as shown in FIG. 9, two of the vibration units in each group are adjacent to each other, or as shown in FIG. 10, the piezoelectric elements vibrating in the first direction in each group belong to The vibration unit is located in the first region, and the vibration unit to which the piezoelectric element vibrating in the second direction belongs to the second region, and the first region and the second region are different.

When the number of the vibration units is an odd number, that is, when the heat dissipation module includes 2n+1 vibration units, η > 1. Wherein each of the 2n of the vibration units is a group; The alternating current is such that at the same time, the piezoelectric element of one of the vibrating units in each group vibrates in the first direction, and the piezoelectric element in the other of the vibrating units vibrates in the second direction. At this time, as shown in FIG. 11, two of the vibration units in each group are adjacent to each other, or as shown in FIG. 12, the piezoelectric elements vibrating in the first direction in each group belong to The vibration unit is located in the first region, and the vibration unit to which the piezoelectric element vibrating in the second direction belongs to the second region, and the first region and the second region are different. At this time, in consideration of minimizing vibration transmission, one of the vibration units other than the 2n of the vibration units may be located at the center of the module. For example, in FIGS. 11 and 12, the vibration unit 8019 is disposed at the center of the entire module. Or when the heat dissipating module is fixed to the device having the heat dissipating teeth, one of the vibrating units except the 2n of the vibrating units is located at the center of the entire device, thereby further reducing the amount of vibration.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. Alternatively, the mutual coupling or direct connection or communication connection shown or discussed may be an indirect engagement or communication connection through some interface, device or unit, and may be in electrical, mechanical or other form. The components displayed by the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit is implemented in the form of a software functional unit and sold as a standalone product Or when used, it can be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM, Random Acces s Memory), a magnetic disk or an optical disk, and the like, and the program code can be stored. Medium.

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the embodiments are modified, or the equivalents of the technical features are replaced by the equivalents; and the modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

1. A heat dissipation module, characterized in that it is used for equipment with heat dissipation teeth, and the heat dissipation module includes a fixing device and at least two vibration units;

Wherein, each of the vibration units includes a piezoelectric element and a solid piece, and the piezoelectric element in each of the vibration units is connected to one end of the solid piece in the vibration unit;

The fixing device is connected to the piezoelectric elements in each vibration unit for fixing the module.

2. The module according to claim 1, characterized in that each of the piezoelectric elements is supplied with alternating current;

The alternating current causes each of the piezoelectric elements to vibrate in the first direction and the second direction respectively at the same time; the first direction and the second direction are opposite.

3. The module according to claim 2, characterized in that, the heat dissipation module includes 2n of the vibration units; the n > 1;

Wherein, every two vibration units form a group; the alternating current causes the piezoelectric element of one vibration unit in each group to vibrate in the first direction at the same time, and the other vibration unit vibrates in the first direction. The piezoelectric element in vibrates in the second direction.

4. The module according to claim 1, characterized in that, the heat dissipation module includes 2n+1 of the vibration units; the n > 1;

Among them, every two vibration units among the 2n vibration units form a group; the alternating current causes the piezoelectric element of one vibration unit in each group to vibrate in the first direction at the same time. , the piezoelectric element in the other vibration unit vibrates in the second direction.

5. The module according to claim 4, characterized in that, among the 2n+1 vibration units, one of the vibration units except the 2n vibration units is located on the side of the module. center.

6. The module according to any one of claims 3 to 5, characterized in that the two vibration units in each group are adjacent.

7. The module according to any one of claims 3 to 5, wherein the vibration unit to which the piezoelectric element vibrating in the first direction in each group belongs is located in the first area, and each group The vibration unit to which the piezoelectric element vibrating in the second direction belongs is located in the second area, and the first area and the second area are different.

8. The module according to claim 1, characterized in that each of the piezoelectric elements is supplied with alternating current;

9. The module according to claim 1, 2 or 8, characterized in that each of the vibration units forms a two-layer structure, and each layer structure includes at least two of the vibration units;

The air outlet direction of each vibration unit in one layer of the structure is the same as that of each vibration unit in the other layer of structure, and the air outlet paths partially overlap.

10. The module according to claim 9, characterized in that, the piezoelectric elements of each vibration unit in one of the one layer structures are located at all the vibration units of the other layer structure. between the solid pieces.

11. The module according to claim 1, 2 or 8, characterized in that the fixing device is used to fix the module to the top, bottom or middle of the equipment.

12. The module according to claim 1, 2 or 8, characterized in that the fixing device is used to fix the module on the heat dissipation teeth of the equipment.

13. The module according to claim 1, 2 or 8, characterized in that, the fixing device is used to fix the module on the equipment, and the module is used to replace part of the heat dissipation teeth of the equipment. .

14. A heat dissipation system, characterized in that the system includes the heat dissipation module according to any one of claims 1 to 13, and a power supply;

The power supply is used to pass alternating current to each of the piezoelectric elements in the heat dissipation module.

15. A device with heat dissipation teeth, characterized in that the device includes the heat dissipation module according to any one of claims 1 to 13.

16. A control method for a heat dissipation module, characterized in that the heat dissipation module includes a fixing device and at least two vibration units; wherein each of the vibration units includes a piezoelectric element and a solid piece, and the vibration unit in each of the vibration units The piezoelectric element is connected to one end of the solid piece in the vibration unit; the fixing device is connected to the piezoelectric element in each vibration unit for fixing the module; The methods include:

Alternating current is supplied to each of the piezoelectric elements.

17. The method according to claim 16, characterized in that: the alternating current causes each of the piezoelectric elements to vibrate in the first direction and the second direction respectively at the same time; the first direction and the second direction The two directions are opposite.

18. The method according to claim 17, characterized in that the heat dissipation module includes 2n vibration units; the η > 1;

19. The method according to claim 17, characterized in that the heat dissipation module includes 2n+1 of the vibration units; the n > 1;

20. The method according to claim 19, characterized in that, among the 2n+1 vibration units, one of the vibration units except the 2n vibration units is located on the side of the module. center.

21. The method according to any one of claims 18 to 20, characterized in that two of the vibration units in each group are adjacent.

22. The method according to any one of claims 18 to 20, wherein the vibration unit to which the piezoelectric element vibrating in the first direction in each group belongs is located in the first area, and each group The vibration unit to which the piezoelectric element vibrating in the second direction belongs is located in the second area, and the first area and the second area are different.

23. The method according to claim 16, characterized in that the alternating current causes each of the piezoelectric elements to vibrate in the same direction at the same time.