CN210087587U - Gas delivery device - Google Patents

Abstract

A gas delivery device, comprising: the air outlet cover plate is provided with an air outlet pipe and an air outlet convergence groove, and the air outlet pipe is communicated with the air outlet convergence groove and correspondingly arranged; a plurality of groups of flow guide seats; the gas pumps are correspondingly arranged in the concave grooves of the flow guide seats; when the gas pump is enabled to carry out gas transmission, gas is guided into the concave groove of each flow guide seat, and the gas is discharged from the gas outlet pipe sequentially through the communicating hole, the confluence chamber and the gas outlet confluence groove.

Description

gas delivery device

【Technical field】

This case is about a gas delivery device, especially a gas delivery device that can improve flow transmission.

【Background technique】

At present, in various fields, whether it is medicine, computer technology, printing, energy and other industries, products are developing in the direction of refinement and miniaturization. Among them, the gas delivery structure contained in the micropump is the key technology. Therefore, how to use innovation The structure breaks through its technical bottleneck and is an important part of development.

With the rapid development of science and technology, the application of gas delivery devices has become more and more diversified, such as industrial applications, biomedical applications, medical care, electronic cooling, etc., and even the recent popular wearable devices. The gas conveying device of china has gradually tended towards the miniaturization of the device and the maximization of the flow rate.

In the prior art, the gas delivery device is mainly constructed by stacking traditional mechanical components, and the miniaturization or thickness reduction of each mechanical component is used to achieve the purpose of miniaturization and thinning of the overall device. However, after the miniaturization of traditional mechanical components, it is difficult to control the dimensional accuracy, and the assembly accuracy is also difficult to control, resulting in different product yields and even unstable gas delivery flow.

Furthermore, the known gas transmission device also has the problem of insufficient delivery flow, and it is still difficult to meet the demand for a large amount of gas transmission through a single gas transmission device. Therefore, how to develop a structure for improving the flow transmission of a gas conveying device is a problem that needs to be solved urgently at present.

【Content of utility model】

The main purpose of the present application is to provide a gas delivery device, by arranging multiple groups of miniaturized gas pumps side by side, so as to provide the gas delivery device to achieve the best gas transmission efficiency.

In order to achieve the above-mentioned purpose, a broader implementation form of the present case is to provide a gas conveying device, comprising: a gas outlet cover plate, which has an air outlet pipe and an air outlet confluence groove, and the air outlet pipe is communicated with the air outlet confluence groove and is arranged correspondingly; a plurality of sets of guide seats, each guide seat has a main board, a protruding side frame and a frame body, the main board has a concave groove and a communication hole, the communication hole communicates with the concave groove; and a plurality of groups a gas pump, correspondingly disposed in the recessed groove of each guide seat;

Wherein, the multiple sets of guide seats are arranged side by side, and the multiple sets of guide bases are closed by the cover of the air outlet cover, so that the air outlet cover and the protruding side frames of the multiple sets of guide bases are tightly connected up and down, In order to define a confluence chamber and communicate with the gas outlet confluence slot, when the gas pump enables gas transmission, the gas is introduced into the recessed slot of each guide seat, and the gas is sequentially passed through the communication hole , the confluence chamber and the gas outlet confluence groove, and finally the gas is discharged from the gas outlet pipe.

【Description of drawings】

FIG. 1A is a schematic structural diagram of a gas delivery device according to a preferred embodiment of the present invention.

FIG. 1B is a schematic diagram of the disassembly of the structure of the gas delivery device according to the preferred embodiment of the present invention.

FIG. 2A is a schematic structural diagram of the gas outlet cover shown in FIG. 1B .

FIG. 2B is a schematic structural diagram of the air outlet cover shown in FIG. 2A from another viewing angle.

FIG. 3A is a schematic structural diagram of the guide seat shown in FIG. 1B .

FIG. 3B is a schematic structural diagram of the flow guide shown in FIG. 3A from another viewing angle.

FIG. 4 is a schematic view of the A-A cross-sectional structure of the gas delivery device shown in FIG. 1A .

FIG. 5A is a schematic diagram of disassembly of the structure of the gas pump according to the preferred embodiment of the present invention.

FIG. 5B is a schematic structural disassembly view of the gas pump according to the preferred embodiment of the present invention from another perspective.

FIG. 6 is a schematic cross-sectional structure diagram of the piezoelectric actuator shown in FIG. 5A .

FIG. 7 is a schematic cross-sectional structure diagram of a gas pump according to a preferred embodiment of the present invention.

8A to 8E are schematic views of the actuation structure of the gas pump according to the preferred embodiment of the present invention.

【Detailed ways】

Some typical embodiments embodying the features and advantages of the present case will be described in detail in the description of the latter paragraph. It should be understood that this case can have various changes in different aspects, all of which do not depart from the scope of this case, and the descriptions and diagrams therein are essentially for illustrative purposes rather than limiting the present case.

The gas delivery device in this case can be applied to various electronic devices or medical equipment, and can improve the flow transmission. Please refer to FIG. 1A and FIG. 1B , the gas delivery device 1 of the present application mainly includes a gas outlet cover 11 , a plurality of sets of guide seats 12 , and a plurality of sets of gas pumps 14 , wherein each gas pump 14 adopts a corresponding accommodating guide seat. In 12, multiple sets of guide seats 12 are arranged side by side in a horizontal direction, the gas outlet cover plate 11 is a cover to close the multiple sets of guide seats 12, and the multiple sets of gas pumps 14 are used for gas transmission. When the gas is transported at the same time, the gas is confluenced by the gas outlet cover plate 11, the guide seat 12 and other elements, and finally quickly discharged from the gas outlet pipe 111 of the gas outlet cover plate 11, thereby achieving the effect of increasing the gas transmission flow rate. For the convenience of description The technical content of this case is described in this embodiment by taking the number of the guide seat 12 and the gas pump 14 as two as an example, and the detailed structure and operation method thereof will be further described in the latter part of the specification.

The numbers of the guide seats 12 and the gas pumps 14 in this case correspond to each other. If the number of the gas pumps 14 is three, the number of the guide seats 12 is also three, but the number is not limited to this, and can be arbitrarily determined according to the actual situation. Apply changes. In addition, the size of the gas outlet cover 11 can also be changed with the number of the guide seats 12 , so that the gas outlet cover 11 can be covered and sealed on the plurality of sets of guide seats 12 for the transmission of the gas confluence.

Please refer to FIGS. 2A and 2B , the air outlet cover 11 of this embodiment includes an air outlet pipe 111 and an air outlet confluence groove 114 , wherein the air outlet pipe 111 is communicated with the air outlet confluence groove 114 and is arranged correspondingly, the air outlet pipe 111 includes a discharge opening 112 , and The air outlet manifold 114 includes an inlet opening 113 . The outlet opening 112 is disposed inside the air outlet pipe 111 and communicates with the inlet opening 113 . The diameter of the inlet opening 113 is slightly larger than that of the outlet opening 112 , and the inner diameter of the air outlet pipe 111 is tapered from the inlet opening 113 . To the taper shape of the discharge opening 112 , but not limited thereto, the taper shape can be used to generate a clear converging effect for the gas, and the condensed gas can be quickly transported by the gas outlet pipe 111 .

Please refer to FIG. 3A and FIG. 3B , the structural features of the plurality of groups of guide bases 12 are the same. In order to avoid repeated description, the following only describes the structural features of a single guide base 12 in detail. The guide seat 12 includes a main board 120 , a protruding side frame 121 and a frame body 122 , wherein the main board 120 is provided with a concave groove 124 and a communication hole 125 . The communication hole 125 communicates with the concave groove 124 and protrudes from the side frame 121 . In order to protrude and surround the main board 120, the frame body 122 protrudes and surrounds the bottom of the main board 120, and the protruding side frame 121 is arranged on the main board 120. The air outlet cover 11 is assembled and supported on the top, and a sealing opening 127 is provided on the protruding side frame 121 , and a pin opening 126 is provided on the frame body 122 of the guide seat 12 .

Referring to FIGS. 5A , 5B and 6 again, multiple sets of gas pumps 14 are of the same gas transmission structure and operate in the same manner. For the convenience of description, only a single gas pump 14 is described below. As shown in the figure, the gas pump 14 is mainly composed of an air intake plate 141 , a resonance sheet 142 , a piezoelectric actuator 143 , a first insulating sheet 144 a , a conductive sheet 145 and a second insulating sheet 144 b which are stacked and arranged correspondingly to each other.

The air intake plate 141 of this embodiment further includes a plurality of air intake holes 141a, a plurality of bus bar holes 141b and a confluence flow groove 141c. In this embodiment, four air intake holes 141a and four bus bar holes 141b are used as an example For illustration, but the number is not limited to this, the four air inlet holes 141a are holes passing through the air inlet plate 141 for the gas to flow into the gas pump 14 from the outside of the device according to the action of atmospheric pressure. The bus-bar holes 141b are respectively provided corresponding to the four air inlet holes 141a, and the bus-bar holes 141c are provided at the centers of the four bus-bar holes 141b and communicate with the four bus-bar holes 141b. The air inlet holes 141a lead into the bus bar holes 141b, and guide and confluence the gas to the confluence flow grooves 141c, so as to realize the gas transmission. The air intake plate 141 in this embodiment is an integrally formed structure, but not limited thereto.

The resonance sheet 142 of the present embodiment is a sheet made of flexible material, and the resonance sheet 142 has a hollow hole 142c. The hollow hole 142c is provided corresponding to the confluence groove 141c of the air inlet plate 141 for supplying gas. circulation. The resonance plate 142 in this embodiment is made of copper material, but not limited thereto.

The piezoelectric actuator 143 of this embodiment mainly includes a suspension board 1431 , an outer frame 1432 , a plurality of brackets 1433 , a piezoelectric element 1434 and other elements. The number of the brackets 1433 in this embodiment is four, but not limited thereto, and the number can be arbitrarily changed according to the actual situation. The hoverboard 1431 of this embodiment further includes a convex portion 1431a, a second surface 1431b, and a first surface 1431c, and the convex portion 1431a is disposed on the second surface 1431b, and the convex portion 1431a may be, but not limited to, a circular shape Raised structure. In this embodiment, the outer frame 1432 is a frame structure, and is disposed around the periphery of the suspension board 1431. Four brackets 1433 are connected between the outer frame 1432 and the suspension plate 1431 to provide elastic support. A plurality of gaps 1435 are further defined between the frame 1432 and the suspension board 1431 , and the plurality of gaps 1435 are used for the air to flow out. The types and quantities of the hover board 1431 , the outer frame 1432 and the brackets 1433 in this embodiment are not limited to this, and can be changed according to actual application requirements. In addition, in this embodiment, the outer frame 1432 further has a conductive pin 1432c protruding outward for the external power supply device (not shown) to be electrically connected to the gas pump 14 and provide driving power, but not limited thereto. The piezoelectric element 1434 of this embodiment is attached to the first surface 1431c of the suspension board 1431, and is used to apply a voltage to the suspension board 1431, so that the suspension board 1431 is deformed to bend and vibrate up and down, so as to carry out gas transmission, and its transmission The operation method will be further detailed in the latter part of the description.

Please refer to FIG. 6 again, the protrusion 1431a of the suspension board 1431 is coplanar with the second surface 1432a of the outer frame 1432, and the second surface 1431b of the suspension board 1431 and the second surface 1433a of the bracket 1433 are also coplanar. There is a specific depth between the protruding portion 1431a of the suspension board 1431 and the second surface 1432a of the outer frame 1432 , the second surface 1431b of the suspension board 1431 and the second surface 1433a of the bracket 1433 . The first surface 1431c of the suspension board 1431 , the first surface 1432b of the outer frame 1432 and the first surface 1433b of the bracket 1433 are flat coplanar structures, and the piezoelectric element 1434 is attached to the flat first surface 1432b of the suspension board 1431 . at surface 1431c. In other embodiments, the shape of the suspension board 1431 may also be a plate-like square structure with flat surfaces on both sides. In some embodiments, the suspension board 1431 , the bracket 1433 and the outer frame 1432 can be integrally formed, and are made of a metal plate, such as stainless steel, but not limited thereto. In other embodiments, the side length of the piezoelectric element 1434 is smaller than the side length of the suspension board 1431 . In other embodiments, the side length of the piezoelectric element 1434 is equal to the side length of the suspension board 1431 , and is also designed to be a square plate structure corresponding to the suspension board 1431 , but not limited thereto.

The first insulating sheet 144a, the conductive sheet 145, and the second insulating sheet 144b in this embodiment are sequentially disposed on the first surface 1432b of the outer frame 1432 of the piezoelectric actuator 143, and their shapes substantially correspond to piezoelectric The actuator 143 is in the form of the outer frame 1432 . In this embodiment, the first insulating sheets 144a and 144b are made of insulating material, such as plastic, but not limited thereto, so as to provide insulating function. The conductive sheet 145 in this embodiment is made of a conductive material, such as a metal material, but is not limited to this, so as to provide an electrical conduction function. In this embodiment, a conductive pin 145a is further protruded from the conductive sheet 145 to realize the electrical conduction function.

Referring again to FIG. 7 , the gas pump 14 is formed by stacking an air intake plate 141 , a resonance sheet 142 , a piezoelectric actuator 143 , a first insulating sheet 144 a , a conductive sheet 125 , and a second insulating sheet 144 b in sequence. , and there is a gap h between the resonance plate 142 and the piezoelectric actuator 143 . In this embodiment, it is in the gap h between the resonance plate 142 and the periphery of the outer frame 1432 of the piezoelectric actuator 143 Filling material such as but not limited to conductive glue, so that the depth of the gap h can be maintained between the resonance plate 142 and the convex portion 1431a of the suspension plate 1431 of the piezoelectric actuator 143, so that the air flow can be guided more quickly Since the convex portion 1431a of the suspension plate 1431 and the resonance plate 142 maintain a proper distance, the contact and interference of each other are reduced, and the noise generation can be reduced. In other embodiments, the height of the outer frame 1432 of the high-voltage electric actuator 143 can also be increased to increase a gap when it is assembled with the resonance plate 142 , but not limited to this.

After the intake plate 141, the resonance plate 142 and the piezoelectric actuator 143 are assembled in sequence, the resonance plate 142 has a movable portion 142a and a fixed portion 142b, and the movable portion 142a can be connected to the intake plate 141 thereon. A chamber for converging gas is formed together, and a compression chamber 140 is further formed between the resonance plate 142 and the piezoelectric actuator 143 to temporarily store the gas, and the compression chamber 140 penetrates the hollow of the resonance plate 142 The hole 142c communicates with the cavity at the confluence channel 141c of the air inlet plate 141 .

Referring again to FIG. 1 and FIG. 4 , the plurality of sets of gas pumps 14 are correspondingly disposed in the frame body 122 of the plurality of sets of guide bases 12 , and the conductive pins 1432 c and 145 a of the gas pumps 14 can be provided by the guide base 12 . The pin openings 126 on the frame body 122 protrude out to the outside for the external power supply device (not shown) to be electrically connected to the gas pump 14 to provide driving power. The air outlet cover plate 11 is covered on the step space of the protruding side frame 121 and is assembled, received and sealed on the plurality of sets of guide seats 12 , so that the air outlet cover plate 11 and the protruding side frames 121 of the multiple sets of air guide seats 12 are sealed up and down. The sealing glue is used to inject the sealing glue from the sealing glue opening 127 of the protruding side frame 121 to achieve the effect of gluing and airtightness. In this way, the air outlet cover 11 and the protruding side frames 121 of the plurality of sets of air guide bases 12 are A plurality of confluence chambers 123 are formed therebetween and communicate with each other with the air outlet confluence grooves 114 . Therefore, in this embodiment, through the special design of the frame body 121, the air guide seat 12 and the air outlet cover plate 11 are fixed to each other in a way of tightly connecting up and down, so that the components can be easily disassembled and assembled, and the cost of component assembly can be greatly reduced. It can also achieve the effect of easy replacement of components, so that the flexibility of assembly and application of the gas delivery device 1 is improved.

When the multiple sets of gas pumps 14 enable gas transmission, the gas flows through the recessed grooves 124 , the communication holes 125 , the confluence chambers 123 and the gas outlet confluence grooves 114 of the multiple sets of guide bases 12 respectively by the gas pumps 14 , and finally The gas is discharged from the discharge opening 112 of the gas outlet pipe 111; in short, the gas is introduced into the gas delivery device 1 through the multiple sets of gas pumps 14, and the internal flow channels of the multiple sets of guide bases 12 are designed so that the transmitted gas can be The confluence is concentrated, and the purpose of improving the transmission efficiency is achieved; in addition, in this embodiment, two sets of gas pumps are arranged side by side, and at the same time, the gas transmission is enabled, so that the gas transmission flow rate is greater than that of a single gas pump, thereby improving the gas transmission flow rate. effect. Of course, the number of parallel assembly configurations of the gas pumps is not limited to two groups, which can be arbitrarily changed according to the actual situation.

Referring to FIGS. 8A to 8E , when the gas pump 14 is actuated, the piezoelectric actuator 143 is actuated by a voltage and takes the bracket 1433 as a fulcrum to reciprocate in a vertical direction. First, as shown in FIG. 8A , when the piezoelectric actuator 143 is actuated by a voltage to vibrate downward, the volume of the compression chamber 140 is increased and the pressure is decreased, so that the gas enters from the air inlet 141a in compliance with the atmospheric pressure, Then, as shown in FIG. 8B, since the resonant sheet 142 is a thin sheet-like structure, when the gas enters the compression chamber 140 according to the atmospheric pressure When the chamber 140 is compressed, the movable part 142a of the resonant plate 142 vibrates downward along with it, and sticks against the convex part 1431a of the suspension plate 1431 of the piezoelectric actuator 143, so that the convex part 1431a of the suspension plate 1431 is outside the The space between the confluence chambers between the area of the resonant sheet 142 and the fixed parts 142b on both sides of the resonance sheet 142 will not become smaller, and by virtue of the deformation of the resonance sheet 142, the volume of the compression chamber 140 is compressed and the compression chamber is closed. The intermediate circulation space 140 pushes the gas in it to flow from the center to the periphery, and then flows downward through the gap 1435 between the brackets 1433 of the piezoelectric actuator 143 . Thereafter, as shown in FIG. 8C, the movable portion 142a of the resonant plate 142 is deformed by bending and vibrating upward, and returns to the initial position, and the piezoelectric actuator 143 is driven by a voltage to vibrate upward, and thus the compression chamber 140 is also squeezed. However, at this time, since the piezoelectric actuator 143 is lifted upward, the gas in the compression chamber 140 will flow to both sides, and the gas continues to enter from at least one air inlet hole 141a on the air inlet plate 141 , and then flow into the cavity formed by the confluence flow groove 141c. As shown in FIG. 8D, the resonance plate 142 is resonated upward by the upward vibration of the piezoelectric actuator 143. At this time, the movable portion 142a of the resonance plate 142 also vibrates upward, thereby slowing down the continuous flow of the gas from the intake air. The air inlet hole 141a on the plate 141 enters, and then flows into the cavity formed by the confluence flow groove 141c. Finally, as shown in FIG. 8E, the movable portion 142a of the resonant plate 142 also returns to the initial position. From this embodiment, it can be seen that when the resonator plate 142 performs vertical reciprocating vibration, the resonant plate 142 can interact with the piezoelectric actuator. The gap h between the two structures can increase the maximum distance of the vertical displacement. In other words, setting the gap h between the two structures can make the resonance plate 142 have a larger vertical displacement during resonance.

To sum up, in this case, multiple sets of gas pumps are respectively installed in multiple sets of guide bases, and the multiple sets of guide bases are arranged horizontally side by side with each other, and are closely connected with the corresponding upper and lower sets of the gas outlet cover to improve the transmission. For the purpose of efficiency, and the configuration of multiple sets of gas pumps can greatly increase the gas transmission flow rate, in addition, this case also through the special flow channel and structural design of the gas pump, the gas can flow at high speed and high efficiency, and can achieve Quiet, miniaturized effects.

This case can be modified by Shi Jiangsi, a person who is familiar with this technology, but all of them do not deviate from the protection of the scope of the patent application attached.

【Symbol Description】

1: Fluid Control Device

11: Air outlet cover

111: Outlet tube

112: Discharge opening

113: Enter the opening

114: Outlet manifold

12: Guide seat

120: Motherboard

121: Protruding side frame

122: Frame

123: Convergence Chamber

124: Recessed groove

125: Connecting hole

126: pin opening

127: Sealing opening

14: Gas pump

140: Compression chamber

141: Air intake plate

141a: Air intake

141b: Busbar hole

141c: Convergence Flow Slot

142: Resonance sheet

142a: Movable part

142b: Fixed part

142c: Hollow Hole

143: Piezoelectric Actuators

1431: Hoverboard

1431a: convex part

1431b: Second Surface

1431c: First Surface

1432: Outer frame

1432a: Second Surface

1432b: First Surface

1432c: Conductive pins

1433: Stand

1433a: Second Surface

1433b: First Surface

1434: Piezoelectric Elements

1435: void

144a: First insulating sheet

144b: Second insulating sheet

145: Conductive sheet

h: gap

Claims (5)

1. A gas delivery device, characterized in that, comprising: an air outlet cover plate, which has an air outlet pipe and an air outlet confluence groove, the air outlet pipe is communicated with the air outlet confluence groove and is arranged correspondingly; a plurality of sets of guide seats, each of the guide seats has a main board, a protruding side frame and a frame body, the main board has a concave groove and a communication hole, and the communication hole communicates with the concave groove; and A plurality of groups of gas pumps are correspondingly arranged in the frame of each guide seat; Wherein, the multiple sets of guide seats are arranged side by side in a horizontal direction, and the multiple sets of guide bases are closed by the cover of the air outlet cover, so that the air outlet cover and the protruding side frames of the multiple sets of guide bases are tightly sealed up and down. are connected together to define a confluence chamber and communicate with the gas outlet confluence groove. When the gas pump enables gas transmission, the gas is introduced into the recessed groove of each guide seat and passes through the communication hole in sequence. , the confluence chamber and the gas outlet confluence groove, and finally the gas is discharged from the gas outlet pipe. 2 . The gas delivery device of claim 1 , wherein the inner diameter of the gas outlet pipe is tapered from large to small. 3 . 3 . The gas delivery device of claim 1 , wherein the protruding side frame protrudes above the main board, the frame body protrudes below the main board, and the protruding side frame is disposed on the main board opposite to the main board. 4 . Compared with the frame body disposed on the mainboard, it is slightly shrunk inward to form a gap space for being assembled with the air outlet cover and placed on it. 4 . The gas delivery device as claimed in claim 1 , wherein the protruding side frames of the plurality of sets of guide seats have a sealing opening, and the frame body has a pin opening. 5 . 5. The gas delivery device of claim 1, wherein at least one of the gas pumps comprises: an air intake plate, comprising at least one air intake hole, at least one confluence row hole and one confluence flow groove; a resonance sheet, including a hollow hole; A piezoelectric actuator includes a piezoelectric element, a suspension board, an outer frame, at least one bracket and a first conductive pin, and at least one gap is defined between the suspension plate, the outer frame and the at least one bracket , the suspension board further has a first surface and a second surface, the second surface is provided with a convex portion, and the piezoelectric element is arranged on the first surface; a first insulating sheet; a conductive sheet including a second conductive pin; and a second insulating sheet; Wherein, the air intake plate, the resonance sheet, the piezoelectric actuator, the first insulating sheet, the conductive sheet and the second insulating sheet are stacked correspondingly to each other, and the resonance sheet and the piezoelectric actuator are arranged in a corresponding stack. There is a gap to define a compression chamber; a voltage is applied to the suspension board through the piezoelectric element, so that the suspension board performs reciprocating up-and-down bending vibration, so that the gas is introduced from the at least one air inlet hole of the air inlet plate , and flow through the bus bar hole, the bus flow groove, the hollow hole and the compression chamber in sequence, and finally lead into the concave groove through the at least one gap.

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