Fluidic fan, circuit board module, and network device

Abstract

The application provides a kind of jet fan, circuit board module and network equipment, it is related to communication equipment technical field.Jet fan includes: vibrating membrane component, first cavity structure and second cavity structure;First cavity structure and second cavity structure are respectively located at the two sides of vibrating membrane component, first cavity structure is enclosed first sealed space on the side of vibrating membrane component, and second cavity structure is enclosed second sealed space on the other side of vibrating membrane component;First cavity structure is provided with first air hole, and first air hole is communicated with first sealed space, and second cavity structure is provided with second air hole, and second air hole is communicated with second sealed space;Vibrating membrane component can drive air to enter and exit first sealed space through first air hole respectively in vibrating process, and drive air to enter and exit second sealed space through second air hole.The jet fan of the application is beneficial to expand the heat dissipation influence range of jet fan, so as to improve the use range of jet fan.

Description

Technical Field

[0001] This application relates to the field of communication equipment technology, and in particular to a jet fan, a circuit board module, and a network device. Background Technology

[0002] With the performance improvement and miniaturization trend of home network products such as optical network terminals (ONTs), the power consumption per unit volume of home network products is increasing, and the internal junction temperature is rising. Conventional passive cooling solutions are no longer sufficient to meet the heat dissipation requirements. Therefore, active cooling technologies with stronger heat dissipation capabilities are being widely adopted.

[0003] Active cooling technology mainly includes centrifugal fans and jet fans, among which jet fans have advantages such as small size, simple structure and parallel airflow.

[0004] However, the jet fans provided by the relevant technologies can only exhaust air from one side, and the heat dissipation area they can cover is relatively small, which limits the scope of application of jet fans. Utility Model Content

[0005] This application provides a jet fan, a circuit board module, and a network device, which can solve the technical problems existing in related technologies.

[0006] On the one hand, this application provides a jet fan, which includes: a diaphragm assembly, a first cavity structure, and a second cavity structure;

[0007] The first cavity structure and the second cavity structure are located on both sides of the vibrating diaphragm assembly, respectively. The first cavity structure forms a first sealed space on one side of the vibrating diaphragm assembly, and the second cavity structure forms a second sealed space on the other side of the vibrating diaphragm assembly.

[0008] The first cavity structure is provided with at least one first vent, which communicates with the first sealed space; the second cavity structure is provided with at least one second vent, which communicates with the second sealed space.

[0009] During vibration, the vibrating diaphragm assembly can drive air to enter and exit the first sealed space through at least one first air hole, and drive air to enter and exit the second sealed space through at least one second air hole.

[0010] The jet fan of this application has a first cavity structure and a second cavity structure arranged on both sides of the vibrating diaphragm assembly. The first cavity structure and the second cavity structure have a first air hole and a second air hole for air to enter and exit, respectively. During the vibration of the vibrating diaphragm assembly, air can be ejected outward from the first air hole and the second air hole, respectively. On the one hand, the air flow rate that can be ejected by the two cavity structures and the two sealed spaces is relatively large, which is beneficial to improving the heat dissipation performance of the jet fan. On the other hand, the two cavity structures are arranged on opposite sides of the vibrating diaphragm assembly, and each has an air hole for air to be ejected outward, so that air can be ejected to different heat dissipation areas. This is beneficial to expanding the heat dissipation influence range of the jet fan, thereby improving the application range of the jet fan.

[0011] In some implementations, at least one first vent is located on the side of the first cavity structure facing away from the diaphragm assembly, or on the side of the first cavity structure connected to the diaphragm assembly.

[0012] And / or,

[0013] At least one second vent is located on the side of the second cavity structure facing away from the diaphragm assembly, or on the side of the second cavity structure connected to the diaphragm assembly.

[0014] With the above arrangement, the first air hole can be arranged on different sides of the first cavity structure, so that when the diaphragm assembly vibrates, the air in the first sealed space can be ejected in different directions through the first air hole. The second air hole can be arranged on different sides of the first cavity structure, so that when the diaphragm assembly vibrates, the air in the second sealed space can be ejected in different directions through the second air hole. Thus, the jet fan can meet the needs of different heat dissipation scenarios, has higher flexibility, and is conducive to expanding the application range of the jet fan.

[0015] In some implementations, the orientation of at least one first vent is opposite to that of at least one second vent, or the orientation of at least one first vent is perpendicular to that of at least one second vent.

[0016] With the above arrangement, the first and second air vents can face opposite directions, allowing the jet fan to eject air in opposite directions, creating two heat dissipation zones on opposite sides of the jet fan and achieving a wider range of heat dissipation. Alternatively, the first and second air vents can face perpendicular directions, allowing the jet fan to eject air in two perpendicular directions, achieving an even wider range of heat dissipation.

[0017] In some implementations, the vibrating diaphragm assembly includes a vibrating diaphragm element and at least one driving element, the vibrating diaphragm element being connected to the at least one driving element, and the at least one driving element being used to drive the vibrating diaphragm element to vibrate;

[0018] One side of the vibrating diaphragm element is connected to the first cavity structure and forms a first sealed space, while the other side is connected to the second cavity structure and forms a second sealed space.

[0019] With the above arrangement, the first cavity structure and the second cavity structure can share a single vibrating diaphragm element. When the vibrating diaphragm element moves towards the first cavity structure, the first sealed space is compressed, and the second sealed space is stretched. Air in the first sealed space is ejected outward through the first vent, while external air is drawn into the second sealed space through the second vent. When the vibrating diaphragm element moves towards the second cavity structure, the first sealed space is stretched, and the second sealed space is compressed. External air is drawn into the first sealed space through the first vent, and air in the second sealed space is ejected outward through the second vent. Thus, when the vibrating diaphragm element performs high-frequency reciprocating vibration, the first and second sealed spaces alternately draw in air or expel air outward, thereby forming a continuous jet airflow in both directions. This jet airflow can continuously transfer heat from the device surface to the outside, thus achieving heat dissipation. Moreover, since the jet fan only requires one vibrating diaphragm element, it can achieve double-sided airflow without increasing its thickness, resulting in a larger airflow and heat dissipation coverage area.

[0020] In some implementations, the diaphragm assembly includes two diaphragm elements and at least two drive elements, the two diaphragm elements are arranged in parallel and spaced apart, and each diaphragm element is connected to at least one drive element.

[0021] The two vibrating diaphragm elements are a first vibrating diaphragm element and a second vibrating diaphragm element. The side of the first vibrating diaphragm element facing away from the second vibrating diaphragm element is connected to the first cavity structure and forms a first sealed space. The side of the second vibrating diaphragm element facing away from the first vibrating diaphragm element is connected to the second cavity structure and forms a second sealed space.

[0022] With the above arrangement, the first cavity structure can form a first sealed space with the first vibrating diaphragm element, and the second cavity structure can form a second sealed space with the second vibrating diaphragm element. The intake and exhaust of the first sealed space are achieved by the repeated vibration of the first vibrating diaphragm element, and the intake and exhaust of the second sealed space are achieved by the repeated vibration of the first vibrating diaphragm element. The two vibrating diaphragm elements can be controlled independently, so the jet fan has higher control flexibility.

[0023] In some implementations, the driving element is a piezoelectric ceramic, which is attached to the surface of the vibrating diaphragm element. Under the drive of alternating current or pulsed voltage, the piezoelectric ceramic expands and contracts, causing the vibrating diaphragm element to vibrate. The air in the first and second sealed spaces is compressed, forming high pressure, and is ejected through the first or second vent, forming a high-speed air jet.

[0024] In some implementations, the jet fan also includes an encapsulation housing that wraps around at least one edge of the diaphragm assembly, the first cavity structure, and the second cavity structure;

[0025] The bottom of the encapsulation housing is provided with a first pin and a second pin, which are electrically connected to the diaphragm assembly respectively. The first pin and the second pin are used to supply power to the diaphragm assembly.

[0026] With the above arrangement, the jet fan is integrated through an external package housing, and the power supply connection and fixation of the jet fan can be achieved through the first and second pins at the bottom of the package housing, so that the jet fan can be applied to the integrated circuit board in the form of a plug-in.

[0027] In some implementations, a third pin is provided at the bottom of the package housing, and the third pin, the first pin, and the second pin are arranged in a triangle.

[0028] With the above arrangement, the three pins of the jet fan have higher insertion stability, which is beneficial to improving the insertion reliability of the jet fan. Moreover, the layout of the three pins has higher recognizability, which can realize the foolproof function, prevent reverse insertion, and thus improve the application efficiency of the jet fan.

[0029] On the other hand, this application provides a circuit board module, which includes: the jet fan of this application, and an integrated circuit board, wherein the jet fan is located on the surface of the integrated circuit board;

[0030] The surface of the integrated circuit board is provided with at least two heat source devices, and at least one first vent and at least one second vent are distributed facing different heat source devices.

[0031] The circuit board module of this application utilizes the jet fan of this application, possessing all the beneficial technical effects of this application. The jet fan can simultaneously provide air jets to heat source devices at different locations, increasing the heat dissipation airflow while achieving a large-area heat dissipation coverage. Furthermore, the jet fan has a simple structure and can be directly integrated onto the surface of the integrated circuit board, which helps reduce the size occupied by the jet fan, thereby reducing the size of the circuit board module and facilitating the miniaturization and high-performance integration of the device.

[0032] On the other hand, this application provides a network device that includes the circuit board module of this application. The network device of this application utilizes the circuit board module of this application and possesses all the beneficial technical effects of this application. Attached Figure Description

[0033] Figure 1 This is a cross-sectional view of a jet fan provided in an embodiment of this application;

[0034] Figure 2 This is a cross-sectional view of another jet fan structure provided in an embodiment of this application;

[0035] Figure 3 This is a cross-sectional view of another jet fan structure provided in an embodiment of this application;

[0036] Figure 4 This is a cross-sectional view of another jet fan structure provided in an embodiment of this application;

[0037] Figure 5 This is a front view of the structure of a jet fan provided in an embodiment of this application;

[0038] Figure 6 This is a side view of the structure of a jet fan provided in an embodiment of this application;

[0039] Figure 7 This is a front view of another jet fan structure provided in an embodiment of this application;

[0040] Figure 8 This is a side view of another jet fan structure provided in an embodiment of this application;

[0041] Figure 9 This is an application scenario diagram of a jet fan provided in an embodiment of this application;

[0042] Figure 10 This is a schematic diagram of the structure of a circuit board module provided in an embodiment of this application.

[0043] The reference numerals in the attached figures represent:

[0044] 100. Jet fan;

[0045] 1. Vibrating diaphragm assembly;

[0046] 11. Vibrating diaphragm element; 11a. First vibrating diaphragm element; 11b. Second vibrating diaphragm element; 12. Driving element; 121. First power supply line; 122. Second power supply line;

[0047] 2. First cavity structure;

[0048] 201. First sealed space;

[0049] 21. First pore;

[0050] 3. Second cavity structure;

[0051] 301. Second sealed space;

[0052] 31. Second stomata;

[0053] 4. Encapsulation housing;

[0054] 41. First pin; 42. Second pin; 43. Third pin;

[0055] 5. Integrated circuit board;

[0056] 51. Heat source devices;

[0057] 6. Power supply interface;

[0058] 7. Driver module. Detailed Implementation

[0059] On the one hand, combined with Figure 1 and Figure 3 As shown, this application provides a jet fan 100, which includes: a diaphragm assembly 1, a first cavity structure 2, and a second cavity structure 3.

[0060] The first cavity structure 2 and the second cavity structure 3 are located on both sides of the vibrating diaphragm assembly 1, respectively. The first cavity structure 2 forms a first sealed space 201 on one side of the vibrating diaphragm assembly 1, and the second cavity structure 3 forms a second sealed space 301 on the other side of the vibrating diaphragm assembly 1.

[0061] The first cavity structure 2 is provided with at least one first vent 21, which is connected to the first sealing space 201. The second cavity structure 3 is provided with at least one second vent 31, which is connected to the second sealing space 301.

[0062] During vibration, the vibrating diaphragm assembly 1 can drive air to enter and exit the first sealed space 201 through at least one first air hole 21, and drive air to enter and exit the second sealed space 301 through at least one second air hole 31.

[0063] In this embodiment, the jet fan 100 has a first cavity structure 2 and a second cavity structure 3 arranged on both sides of the vibrating diaphragm assembly 1. The first cavity structure 2 and the second cavity structure 3 have a first air hole 21 and a second air hole 31 that allow air to enter and exit. During the vibration of the vibrating diaphragm assembly 1, air can be ejected outward from the first air hole 21 and the second air hole 31. On the one hand, the air flow rate that can be ejected by the two cavity structures and the two sealed spaces is relatively large, which is beneficial to improving the heat dissipation performance of the jet fan 100. On the other hand, the two cavity structures are arranged on opposite sides of the vibrating diaphragm assembly 1, and each has an air hole that can eject air outward, so that air can be ejected to different heat dissipation areas. This is beneficial to expanding the heat dissipation influence range of the jet fan 100, thereby improving the application range of the jet fan 100.

[0064] In some possible implementations, the directions in which the first vent 21 and the second vent 31 eject air can be the same or different.

[0065] In some possible implementations, the number of first vents 21 is one, two, three, etc. When the number of first vents 21 is two or more, all the first vents 21 are arranged in an array. In other possible implementations, the number of second vents 31 is one, two, three, etc. When the number of second vents 31 is two or more, all the second vents 31 are arranged in an array.

[0066] For example, when there are two or more first air holes 21 and second air holes 31, the air jetting directions of all the first air holes 21 can be the same or different, and the air jetting directions of all the second air holes 31 can be the same or different.

[0067] For example, there are five first vents 21 and five second vents 31, with the five first vents 21 arranged in a cross-shaped array and the five second vents 31 arranged in a cross-shaped array.

[0068] In some possible implementations, the first cavity structure 2 and the second cavity structure 3 respectively include a thin metal plate and an edge sealing structure. The thin metal plate is arranged parallel to and spaced apart from the diaphragm assembly 1. The edge gaps between the thin metal plate and the diaphragm assembly 1 are sealed and filled by the edge sealing structure, thereby forming a gap-shaped first sealing space 201 or second sealing space 301 between the thin metal plate and the diaphragm assembly 1. This shape of the first sealing space 201 and the second sealing space 301 has a larger air compression ratio, which is beneficial for generating a larger air jet. The edge sealing structure can be made of plastic material.

[0069] In this embodiment, during vibration, the vibrating diaphragm assembly 1 repeatedly squeezes and stretches the first sealing space 201 and the second sealing space 301, allowing the first sealing space 201 and the second sealing space 301 to repeatedly cycle inhale and exhale. Moreover, the local negative pressure formed during inhalation causes the airflow in the hemispherical space area to be simultaneously drawn in. During exhalation, guided by the first air hole 21 and the second air hole 31, the airflow exhibits a strong converging effect and is ejected outward along the axial direction of the first air hole 21 or the second air hole 31. Therefore, even if the first sealing space 201 and the second sealing space 301 are only provided with the first air hole 21 and the second air hole 31 respectively, they can still achieve a continuous jet of air in a specific direction, forming a stable and continuous heat dissipation airflow.

[0070] In some implementations, such as Figure 1 As shown, at least one first vent 21 is located on the side of the first cavity structure 2 facing away from the vibrating diaphragm assembly 1, or, as... Figure 2 As shown, at least one first air hole 21 is located on the side where the first cavity structure 2 is connected to the vibrating diaphragm assembly 1.

[0071] With the above arrangement, the first air hole 21 can be arranged on different sides of the first cavity structure 2, so that when the vibrating diaphragm assembly 1 vibrates, the air in the first sealed space 201 can be sprayed in different directions through the first air hole 21, so that the jet fan 100 can meet the needs of different heat dissipation scenarios, has higher flexibility, and is conducive to expanding the application range of the jet fan 100.

[0072] In some implementations, such as Figure 1 As shown, in some implementations, at least one second vent 31 is located on the side of the second cavity structure 3 facing away from the diaphragm assembly 1, or, as... Figure 2 As shown, at least one second vent 31 is located on the side of the second cavity structure 3 connected to the vibrating diaphragm assembly 1.

[0073] With the above arrangement, the second air hole 31 can be arranged on different sides of the first cavity structure 2, so that when the vibrating diaphragm assembly 1 vibrates, the air in the second sealed space 301 can be ejected in different directions through the second air hole 31, so that the jet fan 100 can meet the needs of different heat dissipation scenarios, has higher flexibility, and is conducive to expanding the application range of the jet fan 100.

[0074] In some possible implementations, the side of the first cavity structure 2 facing away from the diaphragm assembly 1 and the side connected to the diaphragm assembly 1 are perpendicular to each other, so that when the first air hole 21 is located on the two sides respectively, air can be sprayed in two mutually perpendicular directions to form two heat dissipation airflows flowing in the vertical direction.

[0075] In some possible implementations, the side of the second cavity structure 3 facing away from the diaphragm assembly 1 and the side connected to the diaphragm assembly 1 are perpendicular to each other, so that when the second air hole 31 is located on the two sides respectively, air can be sprayed in two mutually perpendicular directions to form two heat dissipation airflows flowing in the vertical direction.

[0076] For example, when the first vent 21 is located on the side of the first cavity structure 2 facing away from the diaphragm assembly 1, frontal airflow can be achieved; when the first vent 21 is located on the side of the first cavity structure 2 connected to the diaphragm assembly 1, side airflow can be achieved. In another example, when the second vent 31 is located on the side of the second cavity structure 3 facing away from the diaphragm assembly 1, frontal airflow can be achieved; when the second vent 31 is located on the side of the second cavity structure 3 connected to the diaphragm assembly 1, side airflow can be achieved.

[0077] In some possible implementations, when the first cavity structure 2 and the second cavity structure 3 respectively include a metal sheet and an edge sealing structure, the first vent 21 and the second vent 31 can be arranged on the metal sheet and the edge sealing structure respectively.

[0078] Combination Figure 1 and Figure 2 As shown, in some implementations, the orientation of at least one first vent 21 is opposite to the orientation of at least one second vent 31, or the orientation of at least one first vent 21 is perpendicular to the orientation of at least one second vent 31.

[0079] With the above arrangement, the first vent 21 and the second vent 31 can face opposite directions, allowing the jet fan 100 to eject air in opposite directions, forming two heat dissipation zones on opposite sides of the jet fan 100, thus achieving a wider range of heat dissipation. Alternatively, the first vent 21 and the second vent 31 can face vertically, allowing the jet fan 100 to eject air in two vertical directions, achieving a wider range of heat dissipation.

[0080] Combination Figure 1 and Figure 2 As shown, in some implementations, the vibrating diaphragm assembly 1 includes a vibrating diaphragm element 11 and at least one driving element 12, the vibrating diaphragm element 11 being connected to at least one driving element 12, and the at least one driving element 12 being used to drive the vibrating diaphragm element 11 to vibrate.

[0081] One side of the vibrating diaphragm element 11 is connected to the first cavity structure 2 and forms a first sealed space 201, while the other side is connected to the second cavity structure 3 and forms a second sealed space 301.

[0082] With the above arrangement, the first cavity structure 2 and the second cavity structure 3 can share a single vibrating diaphragm element 11. When the vibrating diaphragm element 11 moves toward the first cavity structure 2, the first sealed space 201 is compressed and the second sealed space 301 is stretched. Air in the first sealed space 201 is ejected outward through the first vent 21, and external air is drawn into the second sealed space 301 through the second vent 31. When the vibrating diaphragm element 11 moves toward the second cavity structure 3, the first sealed space 201 is stretched and the second sealed space 301 is compressed. External air is drawn into the first sealed space 201 through the first vent 21, and air in the second sealed space 301 is ejected outward through the second vent 31. Thus, when the vibrating diaphragm element 11 performs high-frequency reciprocating vibration, the first sealed space 201 and the second sealed space 301 alternately draw in air or eject air outward, thereby forming a continuous jet airflow in both directions. The jet airflow can continuously transport the heat from the surface of the device outward, thereby achieving heat dissipation of the device. Moreover, since the jet fan 100 only requires one diaphragm element 11, the jet fan 100 can achieve double-sided airflow without increasing its thickness, resulting in a larger airflow and heat dissipation coverage area for the jet fan 100.

[0083] In some possible implementations, the number of driving elements 12 and the number of diaphragm elements 11 can be one-to-one or many-to-one. When the number of driving elements 12 and the number of diaphragm elements 11 are one-to-one, each diaphragm element 11 is connected to a driving element 12, and the diaphragm element 11 is driven to vibrate by a driving element 12.

[0084] Combination Figure 3 and Figure 4 As shown, in some implementations, the diaphragm assembly 1 includes two diaphragm elements 11 and at least two drive elements 12. The two diaphragm elements 11 are arranged in parallel and spaced apart, and each diaphragm element 11 is connected to at least one drive element 12.

[0085] The two vibrating diaphragm elements 11 are a first vibrating diaphragm element 11a and a second vibrating diaphragm element 11b. The side of the first vibrating diaphragm element 11a facing away from the second vibrating diaphragm element 11b is connected to the first cavity structure 2 and forms a first sealed space 201. The side of the second vibrating diaphragm element 11b facing away from the first vibrating diaphragm element 11a is connected to the second cavity structure 3 and forms a second sealed space 301.

[0086] With the above arrangement, the first cavity structure 2 can form a first sealed space 201 with the first vibrating diaphragm element 11a, and the second cavity structure 3 can form a second sealed space 301 with the second vibrating diaphragm element 11b. The intake and exhaust of the first sealed space 201 are achieved by the repeated vibration of the first vibrating diaphragm element 11a, and the intake and exhaust of the second sealed space 301 are achieved by the repeated vibration of the first vibrating diaphragm element 11a. The two vibrating diaphragm elements 11 can be controlled independently, so the jet fan 100 has higher control flexibility.

[0087] In some implementations, the driving element 12 is a piezoelectric ceramic (PC). The driving element 12 is attached to the surface of the vibrating diaphragm element 11. Under the drive of alternating current or pulse voltage, the piezoelectric ceramic expands and contracts, causing the vibrating diaphragm element 11 to vibrate. The air in the first sealed space 201 and the second sealed space 301 is compressed to form high pressure and ejected through the first air hole 21 or the second air hole 31, forming a high-speed air jet.

[0088] Among some possible implementations, refer to Figure 1 and Figure 2 As shown, when the first cavity structure 2 and the second cavity structure 3 share a single vibrating diaphragm element 11, the driving element 12 used to drive the vibrating diaphragm element 11 is attached to the side of the vibrating diaphragm element 11 corresponding to the first sealing space 201, or attached to the side of the vibrating diaphragm element 11 corresponding to the second sealing space 301.

[0089] In this embodiment, considering that the driving element 12 may occupy a certain volume, when the driving element 12 is arranged in the first sealed space 201, the volume of the first sealed space 201 is larger than the volume of the second sealed space 301. This can be achieved by increasing the distance between the first cavity structure 2 and the vibrating diaphragm element 11, thereby ensuring that the first sealed space 201 and the second sealed space 301 have essentially the same airflow jet effect. Conversely, when the driving element 12 is arranged in the second sealed space 301, the volume of the second sealed space 301 is larger than the volume of the first sealed space 201.

[0090] Among some possible implementations, refer to Figure 3 and Figure 4 As shown, when the first cavity structure 2 and the second cavity structure 3 each have their own vibrating diaphragm element 11, the driving element 12 for driving the first vibrating diaphragm element 11a and the driving element 12 for driving the second vibrating diaphragm element 11b can be arranged simultaneously in the gap between the first vibrating diaphragm element 11a and the second vibrating diaphragm element 11b, and respectively attached to the corresponding vibrating diaphragm element 11. Thus, the driving element 12 does not need to occupy the volume of the first sealing space 201 or the second sealing space 301, and the jet fan 100 can maintain a large air volume.

[0091] Among some possible implementations, refer to Figure 1 or Figure 2 As shown, the drive element 12 is provided with a first power line 121 and a second power line 122. The first power line 121 and the second power line 122 extend in a direction parallel to the corresponding vibrating diaphragm element 11 and pass through the sealing structure to the outside of the jet fan 100. Exemplarily, the first power line 121 and the second power line 122 can exit from the same side of the jet fan 100 or pass through the other side of the jet fan 100.

[0092] For example, in order to avoid the first power line 121 and / or the second power line 122 occupying the thickness space of the first cavity structure 2 or the second cavity structure 3, the first power line 121 adopts a flat enameled wire, which helps to simplify the sealing of the first cavity structure 2 or the second cavity structure 3 and build a thinner sealing space, thereby increasing the air compression ratio and creating a larger air jet.

[0093] For example, when the driving element 12 is a piezoelectric ceramic, refer to Figure 1 or Figure 2As shown, one end of the first power line 121 is connected to the surface of the piezoelectric ceramic facing away from the diaphragm element 11, and the other end extends to the outside of the jet fan 100. One end of the second power line 122 is connected to the surface of the piezoelectric ceramic facing the diaphragm element 11, and the other end extends to the outside of the jet fan 100. Furthermore, to further reduce the space occupied by the power lines in the sealed area, at least a portion of the second power line 122 is integrated into the surface or interior of the diaphragm element 11, for example, as a plated circuit. Thus, the conductive function of the second power line 122 can be achieved by soldering a small section of power line to the outside of the jet fan 100.

[0094] Combination Figure 5 and Figure 6 As shown, in some implementations, the jet fan 100 further includes an encapsulation housing 4, which wraps around at least one edge of the diaphragm assembly 1, the first cavity structure 2, and the second cavity structure 3.

[0095] The bottom of the encapsulation housing 4 is provided with a first pin 41 and a second pin 42. The first pin 41 and the second pin 42 are electrically connected to the diaphragm assembly 1, respectively, and the first pin 41 and the second pin 42 are used to supply power to the diaphragm assembly 1.

[0096] Through the above arrangement, the jet fan 100 is packaged and integrated through the external packaging shell 4. Moreover, the power supply connection and fixation of the jet fan 100 can be achieved through the first pin 41 and the second pin 42 at the bottom of the packaging shell 4, so that the jet fan 100 can be applied to the integrated circuit board 5 in the form of a plug-in.

[0097] For example, the first pin 41 and the second pin 42 are electrically connected to the driving element 12 in the diaphragm assembly 1, wherein the first pin 41 can be a positive terminal and the second pin 42 can be a negative terminal. During operation, the first pin 41 is connected to the positive terminal of the power supply and the second pin 42 is connected to the negative terminal of the power supply or the ground wire, thereby enabling the driving element 12 to be powered.

[0098] In some possible implementations, the encapsulation housing 4 is made of epoxy resin and cured using a wave soldering process.

[0099] In some possible implementations, such as Figure 9As shown, the jet fan 100 is fixedly connected to the integrated circuit board 5 via a first pin 41 and a second pin 42. The integrated circuit board 5 can be equipped with a power supply interface 6 and a drive module 7. The power supply interface 6 is electrically connected to the drive module 7, and the drive module 7 is electrically connected to the first pin 41 of the jet fan 100. The second pin 42 of the jet fan 100 is grounded. The power supply interface 6 can be connected to an external power source. The current is converted by the drive module 7 into an electrical signal that can drive the drive element 12 to reciprocate. This signal is input into the jet fan 100 via the first pin 41. Under the drive of this electrical signal, the drive element 12 reciprocates, and the jet fan 100 outputs an air jet.

[0100] Combination Figure 7 and Figure 8 As shown, in some implementations, the bottom of the package housing 4 is also provided with a third pin 43, and the third pin 43, the first pin 41, and the second pin 42 are arranged in a triangle.

[0101] With the above arrangement, the three pins of the jet fan 100 have higher insertion stability, which is beneficial to improving the insertion reliability of the jet fan 100. Moreover, the layout of the three pins has higher recognizability, which can realize the foolproof function, prevent reverse insertion, and thus improve the application efficiency of the jet fan 100.

[0102] On the other hand, combining Figure 10 As shown, this application provides a circuit board module, which includes: the jet fan 100 of this application, and an integrated circuit board 5, wherein the jet fan 100 is located on the surface of the integrated circuit board 5.

[0103] The surface of the integrated circuit board 5 is provided with at least two heat source devices 51, and at least one first vent 21 and at least one second vent 31 are distributed facing different heat source devices 51.

[0104] The circuit board module of this embodiment uses the jet fan 100 of this application, which has all the beneficial technical effects of this application. The jet fan 100 can simultaneously provide air jets to heat source devices 51 at different locations, increasing the heat dissipation airflow while achieving a large-area heat dissipation coverage. Moreover, the jet fan 100 has a simple structure and can be directly integrated onto the surface of the integrated circuit board 5. This helps reduce the volume occupied by the jet fan 100, thereby reducing the size of the circuit board module and facilitating the miniaturization and high-performance integration of the device.

[0105] In some possible implementations, the heat source device 51 includes, but is not limited to, optical modules, SOC chips (system on a chip), radio frequency chips, etc.

[0106] On the other hand, this application provides a network device that includes the circuit board module of this application. The network device of this embodiment uses the circuit board module of this application and has all the beneficial technical effects of this application.

[0107] In some possible implementations, network devices include, but are not limited to, optical line terminals (OLTs), optical network units (ONUs), optical distribution networks (ODNs), optical cross-connects (OXCs), optical add-drop multiplexers (OADMs), and so on.

[0108] In the description of the embodiments of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "length", "width", "thickness", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. When the product is placed in different postures, the orientation may change, and therefore should not be construed as a limitation on the embodiments of this application.

[0109] The above description is only for the purpose of enabling those skilled in the art to understand the technical solution of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A fluidic fan, characterized by, The jet fan (100) includes: a diaphragm assembly (1), a first cavity structure (2), and a second cavity structure (3); The first cavity structure (2) and the second cavity structure (3) are located on both sides of the vibrating diaphragm assembly (1). The first cavity structure (2) forms a first sealed space (201) on one side of the vibrating diaphragm assembly (1), and the second cavity structure (3) forms a second sealed space (301) on the other side of the vibrating diaphragm assembly (1). The first cavity structure (2) is provided with at least one first air hole (21), which is connected to the first sealed space (201). The second cavity structure (3) is provided with at least one second air hole (31), which is connected to the second sealed space (301). During vibration, the vibrating diaphragm assembly (1) can drive air to enter and exit the first sealed space (201) through at least one first air hole (21) and drive air to enter and exit the second sealed space (301) through at least one second air hole (31).

2. The fluidic fan of claim 1, wherein, The at least one first vent (21) is located on the side of the first cavity structure (2) facing away from the vibrating diaphragm assembly (1), or on the side of the first cavity structure (2) connected to the vibrating diaphragm assembly (1); And / or, The at least one second vent (31) is located on the side of the second cavity structure (3) facing away from the vibrating diaphragm assembly (1), or on the side of the second cavity structure (3) connected to the vibrating diaphragm assembly (1).

3. The fluidic fan of claim 1, wherein, The orientation of the at least one first vent (21) is opposite to that of the at least one second vent (31), or the orientation of the at least one first vent (21) is perpendicular to that of the at least one second vent (31).

4. The fluidic fan of claim 1, wherein, The vibrating diaphragm assembly (1) includes a vibrating diaphragm element (11) and at least one driving element (12), the vibrating diaphragm element (11) being connected to the at least one driving element (12), and the at least one driving element (12) being used to drive the vibrating diaphragm element (11) to vibrate; One side of the vibrating diaphragm element (11) is connected to the first cavity structure (2) and forms the first sealed space (201), while the other side is connected to the second cavity structure (3) and forms the second sealed space (301).

5. The fluidic fan of claim 1, wherein, The vibrating diaphragm assembly (1) includes two vibrating diaphragm elements (11) and at least two driving elements (12). The two vibrating diaphragm elements (11) are arranged in parallel and spaced apart. Each vibrating diaphragm element (11) is connected to at least one driving element (12). The two vibrating diaphragm elements (11) are a first vibrating diaphragm element (11a) and a second vibrating diaphragm element (11b). The side of the first vibrating diaphragm element (11a) facing away from the second vibrating diaphragm element (11b) is connected to the first cavity structure (2) and forms the first sealed space (201). The side of the second vibrating diaphragm element (11b) facing away from the first vibrating diaphragm element (11a) is connected to the second cavity structure (3) and forms the second sealed space (301).

6. The fluidic fan according to claim 4 or 5, characterized in that The driving element (12) is a piezoelectric ceramic, and the driving element (12) is attached to the surface of the vibrating diaphragm element (11).

7. The fluidic fan of any one of claims 1 to 5, wherein, The jet fan (100) further includes an encapsulation housing (4), which wraps around at least one edge of the diaphragm assembly (1), the first cavity structure (2), and the second cavity structure (3); The bottom of the encapsulation housing (4) is provided with a first pin (41) and a second pin (42). The first pin (41) and the second pin (42) are electrically connected to the diaphragm assembly (1) respectively. The first pin (41) and the second pin (42) are used to supply power to the diaphragm assembly (1).

8. The fluidic fan of claim 7, wherein, The bottom of the encapsulation housing (4) is also provided with a third pin (43), which is arranged in a triangular pattern with the first pin (41) and the second pin (42).

9. A circuit board module, characterized by The circuit board module includes: a jet fan (100) according to any one of claims 1 to 8, and an integrated circuit board (5), wherein the jet fan (100) is located on the surface of the integrated circuit board (5); The surface of the integrated circuit board (5) is provided with at least two heat source devices (51), and the at least one first vent (21) and the at least one second vent (31) are distributed facing different heat source devices (51).

10. A network device, comprising: The network device includes the circuit board module as described in claim 9.

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