Fluid pump module
Patent Information
- Application Number
- CN202310529107.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2022-07-18
- Filing Date
- 2023-05-11
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2043-05-11
AI Technical Summary
[0005]然则,同样承接前述,在过往已知技术中,通常缺乏对于流体传输装置本身的架构讨论,亦鲜有对于流体传输装置的形式,以及如何设置在应用装置上的固定方式的记载,以上述的汲乳器为例,若是设置于其中的运作核心,也就是流体泵本身运作时的散热、平稳、续航,以及震动抑制性能不够成熟,则汲乳的舒适性与时间花费均可能无法使人满意
Smart Images

Figure CN117419034B_ABST
Abstract
Description
[Technical Field]
[0001] This case relates to a fluid pump module, and more specifically, to a core drive component for conveying fluids. [Background Technology]
[0002] Currently, across various industries, including pharmaceuticals, computer technology, printing, and energy, products are trending towards miniaturization and sophistication. Among these, fluid transfer devices, such as micropumps, atomizers, inkjet heads, and industrial printing equipment, rely heavily on micropumps as their driving force. Therefore, overcoming technological bottlenecks through innovative structures is a crucial aspect of their development. With the rapid advancement of technology, the applications of fluid transfer devices are becoming increasingly diversified, encompassing industrial applications, biomedical applications, healthcare, electronic heat dissipation, and even the recently popular wearable devices. This demonstrates that traditional pumps are gradually moving towards miniaturization and maximized flow rates.
[0003] However, the current trend of fluid transfer devices towards maximizing flow rate means that their primary structural design still needs to consider issues such as heat dissipation, stability, endurance, and vibration suppression during the operation of the micropump itself while ensuring sufficient flow rate. If the fluid transfer device is to be used in medical and biomedical applications, the aforementioned issues will further affect the user's experience and comfort, making them even more important.
[0004] As mentioned above, taking the application of fluid transfer devices in the medical and health care category of breast pumps as an example, currently available electric breast pumps, such as those with patent publication numbers TWI724630B and TWM503225U, typically include components such as a breast pump suction cup, a breast pump bottle, a conduit, a drive pump, a control circuit, and a battery. When the breast pump is in operation, the battery provides power for the entire device. The user attaches the breast pump suction cup to the breast, at which point the control circuit sends a drive signal to the drive pump, which in turn drives the pump to generate suction, drawing milk from the breast pump suction cup through the conduit into the breast pump bottle for storage, thereby assisting the user in collecting breast milk.
[0005] However, as mentioned earlier, previous known technologies generally lack discussions on the architecture of fluid transfer devices themselves, and there is little record of the form of fluid transfer devices or how they are mounted on application devices. Taking the aforementioned breast pump as an example, if the core operating component, namely the fluid pump itself, does not have sufficient heat dissipation, stability, endurance, and vibration suppression performance, then the comfort and time spent pumping milk may not be satisfactory. The key to the aforementioned performance is closely related to the way the fluid pump is mounted on the application device. This means that it is still necessary to further explore whether the performance of current application devices, such as breast pumps or other industrial, biomedical, healthcare, and electronic heat dissipation instruments, can achieve their intended purpose. [Summary of the Invention]
[0006] The purpose of this invention is to further improve traditional fluid transfer devices while ensuring sufficient fluid flow supply, as well as their heat dissipation, stability, endurance, and vibration suppression performance when installed in application devices. It should be noted that the fluid transfer device described in this invention can be installed in any industrial, biomedical, healthcare, or electronic heat dissipation application device, such as breast pumps, liquid filters, fluid filters, fresh air systems, and hair dryers, depending on the application requirements.
[0007] To address this, the present invention proposes a fluid transfer device with a novel architecture, comprising a heat sink, a mounting frame, two fluid pumps, a control board, and a delivery pipe. The mounting frame is secured to the side of the heat sink, creating two receiving spaces between the heat sink and the mounting frame. The two fluid pumps are respectively disposed within these receiving spaces. The control board is located on the other side of the heat sink. The delivery pipe connects the two fluid pumps in series, and the control board controls the operation of the fluid pumps. The heat sink provides heat dissipation to the module formed by the two fluid pumps. [Attached Image Description]
[0008] Figure 1A This is used to illustrate the appearance and structure of the fluid pump module in this case. Figure 1B This is another perspective on the appearance and structure of the fluid pump module in this case. Figure 2 The structure of the fluid pumps arranged in a mirror-symmetrical manner is further shown. Figure 3A This describes how the firmware frame, heat sink, control board, delivery pipe, and other components form the fixed frame of the fluid pump module in this case. Figure 3B This paper explains from another perspective how the components, such as the firmware frame, heat sink, control board, and delivery pipe, form the fixed frame of the fluid pump module in this case. Figure 4AThis is an exploded schematic diagram of one embodiment of the fluid pump in this case. Figure 4B A three-dimensional perspective is provided to illustrate the breakdown of the core modules of this case. [Symbol Explanation]
[0009] 1: Fluid pump module 11: Heat sink 111: Heat dissipation plate 112: Heat dissipation side panel 113: Capacity 114: Plate slot 12: Control board 13: Delivery pipe 14: Fluid Pump 141: Cover plate 1411: The first convex part of the cover plate 1412: Second protrusion of the cover plate 142: Core Module 1421: Piezoelectric element 1422: Inlet plate 1422A: Inlet port 1422B: Actuation Zone 1422C: Fixed area 1423: Framework 1424: Second plate 1424A: Second through hole 1425: First Slab 1425A: First through hole 1426: Valve plate 1426A: Valve port 1427: Outflow plate 1427A: Outlet orifice 1428: First Electrode 1428A: First electrode positioning hole 1429: Second electrode 1429A: Second electrode positioning hole 143: Tube Sheet 1431: Inlet pipe 1432: Outflow pipe 1433: Inlet Circulation Layer 1434: Outflow annulus 1435: Tube sheet convex part 1436: Positioning latch 1437: Fluid outlet 1438: Fluid inlet 15: Firmware frame 151: Framed Flat Panel 152: Frame sidewall 153: Frame opening 154: Frame connector
Detailed Implementation Methods
[0010] This invention will be described in detail with reference to preferred embodiments and viewpoints. The following description provides specific implementation details of the invention to enable the reader to fully understand how the various embodiments are implemented. However, those skilled in the art will understand that the invention can also be implemented without these details. Furthermore, the invention can be used and implemented through other specific embodiments, and the various details set forth in this specification can be applied based on different needs, and various modifications or changes can be made without departing from the spirit of the invention. Therefore, the invention will be described with reference to preferred embodiments and viewpoints. Such descriptions are for explaining the structure of the invention and are for illustrative purposes only, not for limiting the scope of the invention. The terminology used in the following description will be interpreted in the broadest and most reasonable way so that it can be used in conjunction with the detailed description of a particular embodiment of the invention.
[0011] Please see Figure 1A , Figure 1B , Figure 2 , Figure 3A as well as Figure 3BTo address the problems of known technologies, this invention proposes a fluid transfer device 1, which, in its preferred embodiment, includes the following components: a heat sink 11, a control board 12, a delivery pipe 13, two fluid pumps 14, and a mounting frame 15. The heat sink 11 comprises several heat sink plates 111 and heat sink side plates 112. In this embodiment, the side ends of the two heat sink plates 111 are respectively connected to the heat sink side plates 112, so that the heat sink 11 presents a "U"-shaped structure when viewed from the side. The heat sink 11 is made of a material with good thermal conductivity, such as metal. The mounting frame 15 is secured to the side of the heat sink 11, creating two receiving spaces 113 between the heat sink 11 and the mounting frame 15. The two fluid pumps 14 are respectively arranged facing each other in a mirror-like direction within the receiving spaces 113. The two fluid pumps 14 sandwich the heat sink plates 111 to form a sandwich structure. The control board 12 is located on the other side of the heat sink 11. The delivery pipe 13 connects and fluidly communicates with two fluid pumps 14, allowing them to be connected in series. The operation of the fluid pumps 14 is controlled by the control board 12, and the heat sink 11 provides heat dissipation for the module formed by the two fluid pumps 14. In various embodiments of the present invention, the control board 12 may typically include a processor, memory, temporary storage, network communication module, router, I / O devices, operating system, and application programs, depending on the application requirements. These components are interconnected in a generally known manner to perform calculations, perform temporary storage, and transmit drive signals to near and far ends to control the operation or status of the fluid pump module 1. It provides management and coordination functions for the various components of the fluid pump module 1. Since the control board 12 is known technology, it will not be described in detail here.
[0012] Please see Figure 2 and Figure 4AIn the aforementioned embodiments of the present invention, the fluid pump 14 has a flat cylindrical shape and further includes a tube sheet 143, a core module 142, and a cover plate 141, which are stacked sequentially from bottom to top. The tube sheet 143 serves as the main flow path structure for accommodating the fluid output and input of the fluid pump 14. The core module 142 is the power source for driving the fluid flow and drives the fluid flow through the drive signal of the control board 12. The bottom end of the cover plate 141 is combined with the top end of the tube sheet 143 to encapsulate the core module 142 in the fluid pump 14. In one aspect of the present invention, since the fluid pump 14 is a flat cylindrical shape, when the fluid pump 14 is arranged in the receiving space 113 of different layers and is arranged opposite each other in the direction of mirror surfaces, so that one fluid pump 14, the heat dissipation plate 111 and the other fluid pump 14 are stacked in sequence from top to bottom to form a sandwich structure, since the fluid pump 14 under the sandwich structure can contact the heat dissipation plate 11 to the maximum extent through the cover plate 141 and the tube sheet 143, the core module 142 in the fluid pump 14 can have the best heat dissipation effect during operation, effectively avoiding the problem that the operating power will decrease due to the temperature rise of the core module 142 after a period of operation of the fluid pump 14 being poorly dissipated. Furthermore, in another aspect of the present invention, since the fluid pumps 14 are arranged in pairs facing each other in a mirror-like direction, when the two fluid pumps 14 are operating, the vibration peak of one fluid pump 14 can just cancel out the vibration trough of the other fluid pump 14. Therefore, the fluid pump module 1 can be made more stable during operation. In addition to extending the life of the fluid pump module 1 itself, the stable operation can also reduce the power consumption of the fluid pumps 14. Moreover, if the present invention is applied to medical and biomedical applications (such as the aforementioned breast pump), or in applications that particularly require stable operation, the good heat dissipation performance and stable operation performance of the fluid pumps 14 can also provide users with a better user experience, thereby achieving the purpose of the present invention to further improve the traditional fluid transmission architecture while ensuring sufficient fluid flow supply.
[0013] Please see Figure 3A as well as Figure 3BThe firmware frame 15 includes a frame plate 151, frame sidewalls 152, frame openings 153, and frame connectors 154. The frame plate 151 is located at the top of the firmware frame 15. The frame sidewalls 152 are vertically disposed at both ends of the frame plate 151, and the frame connectors 154 are located at the ends of the frame sidewalls 152, giving the firmware frame 15 a "U"-shaped structure when viewed from the front. According to one embodiment of the present invention, the firmware frame 15 is secured to the plate slot 114 on the side of the upper heat sink 11 via the frame sidewalls 152, while the frame connectors 154 at the ends of the frame sidewalls 152 are secured to the lower heat sink 11, thus fixing the position of the fluid pump 14 within the receiving space 113. The frame sidewall 152 has a frame opening 153, allowing the delivery pipe 13 to extend out through the frame opening 153 to connect multiple fluid pumps 14, enabling the fluid pumps 14 to be connected in series. It should be noted that in this invention, the optimal number of fluid pumps 14 is two, and correspondingly, the fluid pump module 1 also has two receiving spaces 113. However, those skilled in the art will understand after reading this specification that the number of fluid pumps 14 can be increased according to application requirements. Furthermore, to accommodate more fluid pumps 14, those skilled in the art can also modify the shape of the heat sink 11, for example, by increasing the number of heat sink plates 111 to provide more receiving spaces 113, thus accommodating more fluid pumps 14.
[0014] Please continue reading. Figure 4AIn one embodiment of the present invention, the tube sheet 143 has an inlet pipe 1431, and an outlet pipe 1432 is located on the opposite side of the inlet pipe 1431; a tube sheet protrusion 1435 is located between the inlet pipe 1431 and the outlet pipe 1432; wherein an inlet annular layer 1433 is provided inwardly around the inlet pipe 1431, the outlet pipe 1432 and the tube sheet protrusion 1435, and the inlet annular layer 1433 has a notch, which is connected to the outlet pipe 1431. 32 is connected, and above the inlet annular layer 1433 on the opposite side of the notch, there is a fluid inlet 1438, and the fluid inlet 1438 is connected to the inlet pipe 1431; an outlet annular layer 1434 is provided inwardly around the inlet annular layer 1433, and the outlet annular layer 1434 has a fluid outlet 1437, and the fluid outlet 1437 and the notch of the inlet annular layer 1433 are connected to the outlet pipe 1432; wherein the tube sheet 143 has the tube sheet protrusion 1435 having Several positioning latches 1436 are provided; the core module 142 has a first electrode 1428 and a second electrode 1429. The first electrode 1428 has a first electrode positioning hole 1428A, which can be locked with the positioning latches 1436 on the tube sheet protrusion 1435. Similarly, the second electrode 1429 has a second electrode positioning hole 1429A, which can also be locked with the positioning latches 1436 on the tube sheet protrusion 1435. The cover plate 141 is provided with a first cover plate protrusion 1411 and a second cover plate protrusion 1412. The cover plate 141 can be locked with the tube sheet 143 and fix the core module 142 between the tube sheet 143 and the cover plate 141. The first cover plate protrusion 1411 is correspondingly arranged above the fluid inlet 1438, and the second cover plate protrusion 1412 is correspondingly arranged with the tube sheet protrusion 1435.
[0015] According to one embodiment of the present invention, in order to optimize the size of the fluid pump 14 and the driven fluid flow rate, so that the fluid pump module 1 can drive the maximum flow rate with a small volume, the total length of the fluid pump 14 excluding the inlet pipe 1431 and the outlet pipe 1432 is between 28 mm ± 10 mm, the total width of the fluid pump 14 is between 31 mm ± 10 mm, and the thickness of the fluid pump 14 is between 5 mm ± 2 mm. Through the design of the size of the fluid pump 14, the output pressure of the fluid pump 14 can be between 150 mmHg ± 50 mmHg, and the output flow rate of the fluid pump 14 can be between 1000 ml / min ± 300 ml / min. It should be noted that, according to one aspect of the present invention, the above-mentioned total length, total width, thickness, and even the length and diameter of the inlet pipe 1431 and the outlet pipe 1432 are merely examples and can be modified according to the needs of the application device. Changes in size and corresponding fluid flow rate are all within the scope considered in the present invention.
[0016] As stated above, the length of either the inlet pipe 1431 or the outlet pipe 1432 of the fluid pump 14 is equal to or less than 6 mm, and the diameter of either the inlet pipe 1431 or the outlet pipe 1432 of the fluid pump 14 is equal to or less than 5 mm. Furthermore, the cover plate 141 of the fluid pump 14 has a ball-pressed hardness value of 333 MPa or higher (tested according to ISO 2039-1), and the material of the cover plate 141 is a heat-transfer material or an aluminum alloy. It is worth noting that the material of the cover plate 141 needs to have sufficient hardness to withstand the vacuum force generated during the operation of the fluid pump 14. If the hardness of the cover plate 141 is insufficient, it will cause the fluid pump 14 to collapse inward, thereby affecting the output performance of the fluid pump 14 and causing internal interference and collisions. In addition, the cover plate 141 can be made of metal (e.g., aluminum alloy). Since metal (heat transfer material) has a thermal conductivity, it enhances the overall heat dissipation capacity of the fluid pump 14. The better the overall heat dissipation capacity of the fluid pump 14, the more it helps the fluid pump 14 maintain its performance above the standard.
[0017] According to another embodiment of the present invention, the length of either the inlet pipe 1431 or the outlet pipe 1432 of the fluid pump 14 is greater than or equal to 2.5 mm, and the diameter of either the inlet pipe 1431 or the outlet pipe 1432 of the fluid pump 14 is greater than or equal to 2.5 mm. Furthermore, the cover plate 141 of the fluid pump 14 has a ball-pressing hardness value of 333 MPa or higher (tested according to ISO 2039-1), and the material of the cover plate 141 is a heat-transfer material or an aluminum alloy. It is worth noting that the material of the cover plate 141 needs to have sufficient hardness to resist the vacuum force generated during the operation of the fluid pump 14, preventing the fluid pump 14 from collapsing inward, thereby affecting the output performance of the fluid pump 14 and causing internal mechanism interference or collision.
[0018] Please see Figure 4A and Figure 4B According to an embodiment of the present invention, the core module 142 has a first electrode 1428 and a second electrode 1429. The first electrode 1428 has a first electrode positioning hole 1428A, which can be engaged with a positioning latch 1436 on the tube sheet protrusion 1435 of the tube sheet 143. The second electrode 1429 has a second electrode positioning hole 1429A, which can be engaged with a positioning latch 1436 on the tube sheet protrusion 1435 of the tube sheet 143. It is worth noting that the tube sheet protrusion 1435 of the tube sheet 143 is made of PC material (polycarbonate), which can be considered an insulator; therefore, the first electrode 1428 and the second electrode 1429 will not short-circuit with each other. Furthermore, it is worth noting that the core module 142 is a fluid pump 14 or a piezoelectric fluid pump, but is not limited thereto; any pump capable of transporting fluid is an extension of this embodiment.
[0019] According to the present invention, the cover plate 141 has a first cover plate protrusion 1411 and a second cover plate protrusion 1412. The cover plate 141 can be interlocked with the tube sheet 143 and the core module 142 is fixed between the tube sheet 143 and the cover plate 141. The first cover plate protrusion 1411 is correspondingly disposed above the fluid inlet 1438 of the tube sheet 143, and the second cover plate protrusion 1412 is correspondingly disposed above the tube sheet protrusion 1435 of the tube sheet 143. It is worth noting that after the first protrusion 1411 of the cover plate 141 is sealed, a fluid inlet 1438 can be formed. The fluid inlet 1438 is located between the first protrusion 1411 of the cover plate and the upper part of the air intake ring layer 1433. More precisely, the fluid inlet 1438 is located between the first protrusion 1411 of the cover plate and the core module 142 above the air intake ring layer 1433. This allows the fluid to enter through the inlet pipe 1431 when the core module 142 is activated, and then be transported from the upper part of the core module 142 to the lower part of the core module 142 through the fluid inlet 1438. Finally, the fluid flows out of the fluid pump 14 through the outlet pipe 1432 after passing through the gap between the fluid outlet 1437 and the air intake ring layer 1433. Additionally, it is worth noting that the second protrusion 1412 of the cover plate 141 is in close contact with the tube sheet protrusion 1435 of the tube sheet 143, but the second protrusion 1412 of the cover plate will not come into contact with the first electrode 1428 or the second electrode 1429 of the core module 142 to cause a short circuit. Alternatively, sealant or insulating adhesive can be applied between the first electrode 1428 or the second electrode 1429 and the second protrusion 1412 of the cover plate to ensure that the first electrode 1428 or the second electrode 1429 will not come into contact with the second protrusion 1412 of the cover plate to cause a short circuit when the core module 142 is activated.
[0020] Please see Figure 4BThe diagram illustrates the exploded view of the core module 142 from a three-dimensional perspective. In this embodiment, the core module 142 is enclosed by a cover plate 141 and a tube plate 143, allowing it to be driven by a control board 12 via a circuit formed by the first electrode 1428 and the second electrode 1429. The core module 142, from top to bottom, includes a piezoelectric sheet 1421, an inlet plate 1422, a frame 1423, a second plate 1424, a first plate 1425, a valve plate 1426, and an outlet plate 1427. According to the present invention, the frame 1423 is positioned on the second plate 1424, the second plate 1424 is fixed to the first plate 1425, the first plate 1425 has a first through hole 1425A, the second plate 1424 has a second through hole 1424A, and the thickness of the second plate 1424 is greater than that of the first plate 1425. The second plate 1424 has a plurality of second through holes 1424A. The number, position, and diameter of the second through holes 1424A correspond to the first through holes 1425A located on the first plate 1425. In this embodiment, the diameter of the second through holes 1424A is the same as the diameter of the first through holes 1425A. The second plate 1424 may also be provided with a contact point (not shown in the figure) for electrical connection by wire. In this embodiment, the second plate 1424 can be a metal plate.
[0021] Please continue reading. Figure 4B The aforementioned inlet plate 1422 has multiple inlet holes 1422A, which are arranged in a shape on the plane of the inlet plate 1422. In one embodiment of the present invention, the inlet holes 1422A are arranged in a circle. The shape of the arrangement of the inlet holes 1422A defines an actuating region 1422B and a fixing region 1422C. The actuating region 1422B is surrounded by the inlet holes 1422A and can be driven to bend up and down by the actuation of the piezoelectric sheet 1421. The fixing region 1422C is located around the inlet holes 1422A and is used to fix the inlet plate 1422 in the core module 142. The aforementioned inlet holes 1422A are tapered, which can improve the air intake efficiency and has the effect of easy air intake and difficult air exit to prevent fluid backflow. The number of inlet holes 1422A is even. Furthermore, in one embodiment, the number of inlet holes 1422A is 48, and in another embodiment, the number of inlet holes 1422A is 52, but not limited thereto; in addition, the arrangement shape of the inlet holes 1422A can be rectangular, square, circular, etc.
[0022] In this embodiment, the piezoelectric element 1421 is circular in shape and is disposed in the actuation region 1422B of the inlet plate 1422, corresponding to the actuation region 1422B of the inlet plate 1422. In this embodiment, when the inlet holes 1422A are arranged in a circular pattern, the actuation region 1422B is defined as circular, and the piezoelectric element 1421 is also circular. As mentioned above, the arrangement shape of the inlet holes 1422A can be rectangular, square, or circular, etc. The shape of the actuation region 1422B changes with the arrangement of the inlet holes 1422A, and the piezoelectric element 1421 corresponds to its shape. In another embodiment of the present invention, to accommodate the circular shape of the piezoelectric element 1421 and the circular arrangement of the inlet holes 1422A, the external configuration of the core module 142 is also set to a circular shape.
[0023] According to the present invention, when the piezoelectric element 1421 receives a driving signal (driving voltage and driving frequency), it converts electrical energy into mechanical energy through the inverse piezoelectric effect. The deformation amount of the piezoelectric element 1421 is controlled according to the magnitude of the driving voltage, and the deformation frequency of the piezoelectric element 1421 is controlled according to the driving frequency. The deformation of the piezoelectric element 1421 drives the core module 142 to start transmitting fluid. When the actuation area 1422B of the inlet plate 1422 bends upward, the valve plate 1426 is attracted upward and closes the first through hole 1425A of the first plate 1425. At this time, the fluid is drawn into the core module 142 through the inlet hole 1422A. When the driving signal received by the piezoelectric element 1421 is... When deformation occurs, causing the actuation area 1422B of the inlet plate 1422 to bend downwards, the fluid in the core module 142 is transmitted downwards through the second through hole 1424A of the second plate 1424 and the first through hole 1425A of the first plate 1425. The kinetic energy of the fluid during downward transmission pushes the valve plate 1426 to move, causing the valve plate 1426 to disengage from the first through hole 1425A and abut against the outlet plate 1427, thereby opening the flow path and allowing the fluid to be output from the outlet hole 1427A. Therefore, in the core module 142, by driving the inlet plate 1422 to bend repeatedly by the piezoelectric sheet 1421, the fluid pump 14 can achieve the effect of driving a large flow rate of fluid.
[0024] In summary, this invention, through the arrangement of components such as the piezoelectric element 1421, the inlet plate 1422, the frame 1423, the second plate 1424, the first plate 1425, the valve plate 1426, and the outlet plate 1427 in the core module 142 of the fluid pump 14, ensures that the fluid pump 14 can drive a large flow rate of fluid. Furthermore, by arranging the fluid pumps 14 in pairs facing each other in a mirror direction and using the heat sink 11 as a fixed fluid pump 14, one fluid pump 14, the heat sink 11, and the other fluid pump 14 are stacked sequentially from top to bottom in a sandwich structure. This not only allows the fluid pump module 1 to effectively dissipate heat during operation, but also makes the operation of the core module 142 more stable. In addition to extending the life of the fluid pump module 1 itself, it can also reduce the power consumption of the fluid pump 14, thus achieving the technical objective of this invention to improve application devices in industrial applications, biomedical applications, and healthcare fields with fluid transport as the core.
[0025] The above description represents a preferred embodiment of the present invention. Those skilled in the art should understand that it is used to illustrate the invention and not to limit the scope of the claimed patent rights. The scope of patent protection for this invention is determined by the appended claims and their equivalent fields. Any modifications or refinements made by those skilled in the art without departing from the spirit or scope of this patent are equivalent changes or structures made under the spirit disclosed in this invention and should be included within the scope of the following claims.
Claims
1. A fluid pump module, characterized in that, Include: A heat sink component; A fastener frame is fixed to the side of the heat sink, creating two receiving spaces between the heat sink and the fastener frame. Two fluid pumps are respectively configured in two of these containment spaces; A control board is located on the other side of the heat sink; and, A delivery pipe is connected between the two fluid pumps, so that the two fluid pumps are connected in series through the delivery pipe, and the operation of the two fluid pumps is controlled by the control board. The heat sink provides heat dissipation for the module formed by the two fluid pumps. The firmware framework further includes: A frame plate, a frame side wall, a frame opening, and a frame connector; The frame plate is located at the top of the fastener frame, the frame sidewalls are vertically disposed at both ends of the frame plate, and the frame fastener is located at the end of the frame sidewall. The fastener frame is secured to a plate slot on the side of the heat sink through the frame sidewall, and the frame fastener is also secured to the heat sink, so that the two fluid pumps are fixed in the two receiving spaces, and the delivery pipe is connected to the two fluid pumps through the opening in the frame.
2. The fluid pump module as described in claim 1, characterized in that, The heat sink further includes: Multiple heat dissipation plates; and One heat dissipation side panel; The side ends of the plurality of heat dissipation plates are connected to the heat dissipation side plate, so that the heat dissipation plate and the firmware frame are separated into two receiving spaces.
3. The fluid pump module as described in claim 2, characterized in that, The two fluid pumps sandwich the heat dissipation plate to form a sandwich structure.
4. The fluid pump module as described in claim 1, characterized in that, The fluid pump is in the shape of a flattened cylinder and further comprises: One tube sheet, one core module, and one cover plate; The tube sheet, the core module, and the cover plate are stacked sequentially from bottom to top. The tube sheet serves as the flow path structure for housing the fluid pump. The core module drives the fluid flow through the drive signal of the control board. The bottom end of the cover plate is combined with the top end of the tube sheet to encapsulate the core module in the fluid pump.
5. The fluid pump module as described in claim 4, characterized in that, The tube sheet further includes: One inlet tube; An outlet pipe is located on the opposite side of the inlet pipe; and, A tube sheet protrusion is located between the inlet pipe and the outlet pipe; The inlet pipe, the outlet pipe, and the tube sheet protrusion are provided with an inlet ring layer inwardly. The inlet ring layer includes a notch that communicates with the outlet pipe. The inlet ring layer includes a fluid inlet above it that communicates with the inlet pipe. The inlet annular layer is provided with an outlet annular layer inward, and the outlet annular layer includes a fluid outlet, which is connected to the outlet pipe. The tube sheet protrusion includes multiple positioning latches; The core module includes a first electrode and a second electrode; The first electrode includes a first electrode positioning hole, which is locked to the positioning tenon. The second electrode includes a second electrode positioning hole, which is locked to the positioning latch on the protrusion of the tube sheet. The cover plate is provided with a first protrusion and a second protrusion. The cover plate and the tube sheet are locked together. The first protrusion of the cover plate is positioned above the fluid inlet, and the second protrusion of the cover plate is positioned above the tube sheet protrusion.
6. The fluid pump module as described in claim 5, characterized in that, The total length of the fluid pump, excluding the inlet and outlet pipes, is between 28 mm ± 10 mm; the total width of the fluid pump is between 31 mm ± 10 mm; and the thickness of the fluid pump is between 5 mm ± 2 mm.
7. The fluid pump module as described in claim 6, characterized in that, The output pressure of the fluid pump is between 150 mmHg ± 50 mmHg, and the output flow rate is between 1000 ml / min ± 300 ml / min.
8. The fluid pump module as described in claim 6, characterized in that, The length of either the inlet pipe or the outlet pipe is equal to or less than 6 mm, and the diameter of either the inlet pipe or the outlet pipe is equal to or less than 5 mm.
9. The fluid pump module as described in claim 6, characterized in that, The length of either the inlet pipe or the outlet pipe is greater than or equal to 2.5 mm, and the diameter of either the inlet pipe or the outlet pipe is greater than or equal to 2.5 mm.
10. The fluid pump module as described in claim 5, characterized in that, The cover plate has a hardness of 333 MPa or higher by ball bearing pressure, and the material of the cover plate is either a heat transfer material or an aluminum alloy.
11. The fluid pump module as claimed in claim 5, characterized in that, The core module further includes a piezoelectric sheet, an inlet plate, a frame, a second plate, a first plate, a valve plate, and an outlet plate stacked sequentially from top to bottom. The frame is located on the second plate, and the second plate is fixed on the first plate. The thickness of the second plate is greater than that of the first plate.
12. The fluid pump module as claimed in claim 11, characterized in that, The first plate has at least one first through hole, and the second plate has at least one second through hole. The number, position, and diameter of the at least one second through hole correspond to the at least one first through hole.
13. The fluid pump module as claimed in claim 12, characterized in that, The inlet plate has multiple inlet holes arranged in a shape on the plane of the inlet plate. The area surrounded by the inlet holes is defined as an actuation zone. The actuation zone can bend up and down by the piezoelectric sheet. The area around the inlet holes is defined as a fixed zone, thereby fixing the inlet plate in the core module.
14. The fluid pump module as claimed in claim 13, characterized in that, The multiple inlet holes are arranged along the plane of the inlet plate in a shape selected from rectangles, squares, or circles.
15. The fluid pump module as described in claim 13, characterized in that, When the piezoelectric element receives a drive signal and deforms, the actuation area bends upward, and the valve plate is attracted upward and closes the first through hole. At this time, the fluid is drawn into the core module through the inlet hole. When the actuation area bends downward, the fluid is transmitted downward through the second through hole and the first through hole and pushes the valve plate to move, so that the valve plate is disengaged from the first through hole and output through the outlet hole.
Citation Information
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