Blood pressure watch pressurization system based on miniature high-density integrated air pump

Abstract

The invention relates to a blood pressure watch pressurization system based on a miniature high-density integrated air pump. The blood pressure watch pressurization system comprises a main body component, an air pump module, an electromagnetic valve and a constant-speed air leakage valve. The main body part comprises an air cavity, and a first through hole, a second through hole, a third through hole and a fourth through hole which are respectively communicated with the air cavity, and the fourth through hole is used for being communicated with the air bag. The air pump module communicates with the first through opening. The electromagnetic valve communicates with the second through opening, and the air pump module and the electromagnetic valve are both arranged on the first side of the main body component; the constant-speed air leakage valve is communicated with the third through opening and arranged on the second side, adjacent to the first side, of the main body component. According to the pressurization system, the main body component is designed to be roughly in the L shape, then the air pump module and the electromagnetic valve are arranged on the first side of the main body component, the constant-speed air leakage valve is arranged on the second side of the main body component, the first side and the second side are adjacent, the constant-speed air leakage valve is in a sheet shape, and the overall size of the pressurization system can be reduced through reasonable layout.

Description

Technical Field

[0001] The present invention relates to the technical field of blood pressure measurement, and in particular to a blood pressure watch pressurization system based on a micro high-density integrated air pump. Background Art

[0002] In the modern healthcare field, wearable devices such as blood pressure watches are increasingly being used. The core of these devices is to accurately measure blood pressure through a pressurization system. However, the pressurization systems in existing blood pressure watches have significant shortcomings in terms of their structural layout.

[0003] Traditional pressurization systems often employ a decentralized component layout, with core components like the air pump module, solenoid valve, and constant-rate air leakage valve installed independently and lacking rational space planning. This results in complex and lengthy connecting pipes between components, which not only takes up a significant amount of space within the watch but also increases the complexity of the overall structure.

[0004] As wearable devices evolve towards miniaturization and lightweighting, higher demands are placed on the utilization of internal space. The structural layout of traditional pressurized systems cannot meet this trend, making it difficult to further reduce the device size and compromising wearer comfort. Furthermore, the complex structure increases the difficulty and cost of production and assembly, hindering the large-scale application of the product. Summary of the Invention

[0005] The purpose of the present invention is to provide a blood pressure watch pressurization system based on a micro high-density integrated air pump, which aims to solve the technical problems of the existing pressurization system having unreasonable spatial layout and large overall volume.

[0006] In order to solve the above technical problems, a blood pressure watch pressurization system based on a micro high-density integrated air pump is provided, comprising:

[0007] The main body comprises an air cavity, a first port, a second port, a third port and a fourth port respectively connected to the air cavity, wherein the fourth port is used to communicate with the airbag;

[0008] an air pump module, connected to the first port;

[0009] a solenoid valve, connected to the second port, wherein the air pump module and the solenoid valve are both arranged on the first side of the main body component;

[0010] A uniform air leakage valve is communicated with the third port, and the uniform air leakage valve is arranged on the second side of the main body component adjacent to the first side.

[0011] Furthermore, the main body component includes a first mounting surface, a second mounting surface and a third mounting surface, the air pump module is installed on the first mounting surface, the solenoid valve is installed on the second mounting surface, and the uniform leakage valve is installed on the third mounting surface. The first mounting surface is arranged parallel to the second mounting surface, and the second mounting surface and the third mounting surface are arranged vertically.

[0012] Furthermore, the air cavity includes a first chamber, the first opening is located at the first end of the first chamber, the second opening, the third opening and the fourth opening are all located at the second end of the first chamber, and in the direction from the first end to the second end, the first chamber first extends in the first direction and then extends in the second direction.

[0013] Furthermore, the air cavity includes a second chamber connected to the first chamber, and the pressurizing system also includes an air pressure sensor, which is arranged in the second chamber.

[0014] Furthermore, the pressurization system also includes an FPC cable, the air pump module, the solenoid valve and the air pressure sensor are electrically connected through the FPC cable, and the FPC cable is attached to the outer surface of the main component; the uniform air leakage valve is in the shape of a thin sheet and is made of metal material, and the uniform air leakage valve has micropores.

[0015] Furthermore, the air pump module includes an air pump body, a check plate group, a driving member, an eccentric assembly and a leather cup component; the air pump body includes a placement cavity and an air outlet channel, the check plate group is arranged in the air outlet channel, the check plate group includes a first check plate and a second check plate, and the first check plate is arranged near the inlet end of the air outlet channel, and the second check plate is arranged near the outlet end of the air outlet channel, the check plate group is used to seal the air outlet channel, and the check plate group is configured as follows: when the check plate group is impacted by airflow, the check plate is deformed to connect the air outlet channel with the outside world, the driving member is connected to the air pump body, the eccentric assembly is arranged in the placement cavity and connected to the driving member, and the leather cup component is arranged near the inlet end of the air outlet channel and connected to the eccentric assembly.

[0016] Furthermore, in the direction away from the leather cup component, the air pump body includes a first plate, a second plate and a top plate arranged in sequence, the first check plate is formed on the leather cup component, the second check plate is formed on the second plate, and the check plate group also includes a third check plate, and the third check plate is formed on the second plate.

[0017] Furthermore, the air pump body also includes an upper shell and a lower shell, the upper shell is connected to the leather bowl component, the lower shell is connected to the upper shell and is located on the side away from the first plate, the upper shell and the lower shell together constitute the placement cavity, the driving member is connected to the lower shell, the upper shell is formed with an air inlet, the air inlet corresponds to the position of the first check plate, the lower shell is formed with an air inlet groove connected to the placement cavity, the leather bowl component is formed with a first notch, and the first check plate is formed in the first notch.

[0018] Furthermore, an extended slot, a second slot and a first through hole are formed on the side of the first plate member close to the leather cup member, the extended slot is connected to the first slot, the second slot is connected to the extended slot, and the first through hole is connected to the second slot; an inclined flow channel is formed on the side of the first plate member close to the second plate member, the inclined flow channel includes an inclined slot and a diverter slot, the diverter slot is located in the middle of the inclined slot, and a protrusion extends from the diverter slot.

[0019] Furthermore, the top plate includes a connecting groove and an air outlet, the first through hole and the inclined flow channel are communicated through the connecting groove, the air outlet is communicated with the inclined flow channel, and a convex stop portion extends from the connecting groove.

[0020] Implementing the embodiments of the present invention will have the following beneficial effects:

[0021] In the blood pressure watch pressurization system based on a micro high-density integrated air pump in this embodiment, the present application designs the main body component to be roughly L-shaped, and then the air pump module and the solenoid valve are both arranged on the first side of the main body component, and the uniform leakage valve is arranged on the second side of the main body component. The first side and the second side are adjacent, and the uniform leakage valve is in the shape of a thin sheet. The rational layout is conducive to reducing the overall volume of the pressurization system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the blood pressure watch pressurization system based on the micro high-density integrated air pump according to the embodiment of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the blood pressure watch pressurization system based on the micro high-density integrated air pump according to the embodiment of the present invention. Figure 2;

[0025] Figure 3 This is a schematic structural diagram of the main body of an embodiment of the present invention;

[0026] Figure 4 This is a schematic structural diagram of the main components according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic structural diagram of a uniform air leakage valve according to an embodiment of the present invention;

[0028] Figure 6 This is a structural diagram of the air pump module according to an embodiment of the present invention;

[0029] Figure 7 is a cross-sectional view of an air pump module according to an embodiment of the present invention;

[0030] Figure 8 This is an exploded schematic diagram of a portion of an air pump module according to an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the first plate according to an embodiment of the present invention. Figure 1 ;

[0032] Figure 10 This is a schematic diagram of the structure of the first plate according to an embodiment of the present invention. Figure 2 ;

[0033] Figure 11 This is a structural diagram of a leather cup component according to an embodiment of the present invention;

[0034] Figure 12 This is a schematic structural diagram of the second plate according to an embodiment of the present invention;

[0035] Figure 13 This is a schematic structural diagram of a top plate according to an embodiment of the present invention;

[0036] Figure 14 This is a cross-sectional view of the eccentric assembly according to an embodiment of the present invention.

[0037] Among them: 100, air pump module; 110, air pump body; 111, placement cavity; 112, air outlet channel; 113, first plate; 1131, extension slot; 1131A, inlet section; 1131B, conveying section; 1132, second slot; 1133, first through hole; 1134, inclined flow channel; 1134A, inclined slot; 1134B, diverter slot; 1134C, boss; 114, second plate; 1141, third slot; 1142, second through hole; 115, top plate; 1151, connecting slot; 1151A, receiving slot; 1151B, conveying Groove; 1152, air outlet; 1153, convex stop; 116, upper shell; 1161, air inlet; 117, lower shell; 1171, air inlet groove; 118, snap fastener; 120, check plate assembly; 121, first check plate; 122, second check plate; 123, third check plate; 130, driving member; 140, eccentric assembly; 141, eccentric member; 1411, first connecting portion; 1412, second connecting portion; 142, rocker arm; 150, leather cup component; 151, plate body; 1511, first notch; 152, first leather cup portion; 153, second leather cup portion;

[0038] 200, main body; 210, main body; 211, air cavity; 2111, first chamber; 2112, second chamber; 2113, groove; 212, cover; 220, first opening; 230, second opening; 240, third opening; 250, fourth opening; 260, first mounting surface; 270, second mounting surface; 280, third mounting surface;

[0039] 300, solenoid valve;

[0040] 400, uniform leakage valve; 410, micropore;

[0041] 500, air pressure sensor;

[0042] 600, FPC cable. DETAILED DESCRIPTION

[0043] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] Please refer to Figures 1-14 An embodiment of the present invention provides a pressurization system for a blood pressure watch based on a micro high-density integrated air pump. The pressurization system includes a main body component 200, an air pump module 100, a solenoid valve 300, and a uniform air leakage valve 400. The main body component 200 includes an air cavity 211, a first port 220, a second port 230, a third port 240, and a fourth port 250 respectively connected to the air cavity 211, wherein the fourth port 250 is used to communicate with the airbag. The air pump module 100 is connected to the first port 220; the solenoid valve 300 is connected to the second port 230, and both the air pump module 100 and the solenoid valve 300 are arranged on the first side of the main body component 200; the uniform air leakage valve 400 is connected to the third port 240, and the uniform air leakage valve 400 is arranged on the second side of the main body component 200 adjacent to the first side. Exemplarily, the main body component 200 includes a main body portion 210 and a cover plate 212 . The air cavity 211 is formed in the main body portion 210 , and the cover plate 212 is used to cover and seal the air cavity 211 .

[0047] In the blood pressure watch pressurization system based on a micro high-density integrated air pump in this embodiment, the present application designs the main body 200 to be roughly L-shaped, and then the air pump module 100 and the solenoid valve 300 are both arranged on the first side of the main body 200, and the uniform leakage valve 400 is arranged on the second side of the main body 200. The first side and the second side are adjacent, and the uniform leakage valve 400 is in the shape of a thin sheet. The rational layout is conducive to reducing the overall volume of the pressurization system.

[0048] Please refer to Figure 3 and Figure 4In one possible embodiment, the main body component 200 includes a first mounting surface 260, a second mounting surface 270, and a third mounting surface 280. The air pump module 100 is mounted on the first mounting surface 260, the solenoid valve 300 is mounted on the second mounting surface 270, and the uniform leakage valve 400 is mounted on the third mounting surface 280. The first mounting surface 260 is arranged parallel to the second mounting surface 270, and the second mounting surface 270 and the third mounting surface 280 are arranged perpendicularly. For example, the first mounting surface 260 is arranged parallel to the second mounting surface 270, and the air pump module 100 and the solenoid valve 300 are respectively mounted on these two planes, avoiding the lateral space occupied by the traditional side-by-side layout. The third mounting surface 280 is perpendicular to the second mounting surface 270, and the uniform leakage valve 400 is attached to the third mounting surface 280 in a thin sheet-like structure, utilizing the space in the Z-axis direction.

[0049] Please refer to Figure 3 and Figure 4 In one possible embodiment, the air cavity 211 includes a first chamber 2111, a first port 220 is located at the first end of the first chamber 2111, and the second port 230, the third port 240 and the fourth port 250 are all located at the second end of the first chamber 2111. In the direction from the first end to the second end, the first chamber 2111 first extends in the first direction and then in the second direction. For example, the first chamber 2111 is L-shaped, and the gas output by the air pump module 100 enters the first chamber 2111 through the first port 220. The gas flows from the first end to the second end, and part of the gas flows out from the uniform leakage valve 400, and the other part of the gas enters the airbag. In addition, during the blood pressure measurement process, the solenoid valve 300 is closed. After the blood pressure measurement is completed, the solenoid valve 300 is opened to achieve the need for rapid deflation. The first air cavity 211 converts the one-dimensional space required by the original linear air cavity 211 into a two-dimensional folded space by changing the direction of the airflow path (first extending in the first direction and then extending in the second direction). In wearable devices that are sensitive to volume, such as blood pressure watches, this layout allows the air cavity 211 to extend its path within the limited main body component 200 while avoiding occupying too much horizontal or vertical space, thereby reserving more installation locations for other core components such as the air pump module 100 and the solenoid valve 300, effectively improving the compactness of the overall structure. The corners of the first air cavity 211 adopt a smooth transition design with arc chamfers (such as arc chamfers), which can reduce the turbulence effect when the air flow turns, so that after the air flow enters the air cavity 211 from the air pump module 100 through the first port 220, it can flow more smoothly through the various ports at the second end (the second port 230, the third port 240, and the fourth port 250) to the solenoid valve 300, the uniform leakage valve 400, or the airbag.

[0050] Please refer to Figure 3 and Figure 4In one possible embodiment, the air cavity 211 includes a second chamber 2112 connected to the first chamber 2111, and the pressurization system further includes an air pressure sensor 500, which is disposed in the second chamber 2112. Exemplarily, the air pressure sensor 500 is disposed in the second chamber 2112 connected to the first chamber 2111, and the second chamber 2112 is located between the first end and the second end. The air pressure sensor 500 can monitor the air pressure changes in the air cavity 211 in real time. When the air pump module 100 inflates the air cavity 211 through the first port 220, the air pressure sensor 500 can quickly sense the process of rising air pressure and accurately record the time and pressure curve of the airbag pressurized to the specified pressure value; after the uniform leakage valve 400 is opened, it can also track the rate of air pressure drop in real time, which is beneficial to improving the accuracy of systolic and diastolic pressure interpretation when measuring blood pressure.

[0051] Please refer to Figure 3 and Figure 4 More specifically, a groove 2113 is formed in the first chamber 2111 at a position corresponding to the second chamber 2112. In other words, the provision of the groove 2113 facilitates guiding the gas in the first chamber 2111 into the second air chamber 211. Furthermore, as the airflow in the first chamber 2111 flows from the first end to the second end, the groove 2113 can reduce the flow rate of the gas to a certain extent, thereby further promoting a uniform pressure distribution within the air chamber 211, thereby improving the accuracy of blood pressure measurement.

[0052] Please refer to Figure 1 and Figure 2In one possible embodiment, the pressurization system further includes an FPC cable 600, and the air pump module 100, the solenoid valve 300, and the air pressure sensor 500 are electrically connected via the FPC cable 600, and the FPC cable 600 is attached to the outer surface of the main body component 200; the uniform leakage valve 400 is in the shape of a thin sheet and is made of a metal material, and the uniform leakage valve 400 has a micropore 410. For example, in this embodiment, the uniform leakage valve 400 is in the shape of a rectangular thin sheet, and specifically, the uniform leakage valve 400 is made of stainless steel. A micropore 410 is provided on the uniform leakage valve 400, and the aperture of the micropore 410 is very small. The leakage valve described in patent CN104207759B consists of three main components: a front cover, a rear cover, and a deflation stabilizer. This not only increases the production cost, but also increases the complexity of assembly, and the deflation stabilizer in the patent is made of elastic silicone material. Although silicone has a certain elasticity, its wear resistance and anti-aging performance are relatively poor. It is easy to wear out during long-term use, resulting in unstable leakage speed, which in turn affects subsequent use. Therefore, in this application, a thin sheet-like component is used to replace the traditional multi-part structure, which not only saves space layout, but also the use of metal materials is conducive to extending the service life of the uniform leakage valve 400. The FPC cable can be directly attached to the outer surface of the main part 200, and the wiring is carried out in three-dimensional space, avoiding the three-dimensional space occupied by traditional rigid circuit boards. The FPC cable is pre-attached to the outer surface of the main part 200, and each electronic component (air pump module 100, solenoid valve 300, etc.) is connected to the cable solder joint through a plug-in interface, without the need for complicated welding procedures. And in this embodiment, only one FPC cable 600 is needed to connect all electronic components, simplifying the installation steps.

[0053] Please refer to Figure 7 and Figure 8In a possible embodiment, the air pump module 100 includes an air pump body 110, a check plate group 120, a driving member 130, an eccentric assembly 140 and a leather cup component 150; the air pump body 110 includes a placement cavity 111 and an air outlet channel 112, the check plate group 120 is arranged in the air outlet channel 112, and the check plate group 120 includes a first check plate 121 and a second check plate 122, and the first check plate 121 is arranged near the inlet end of the air outlet channel 112, and the second check plate 122 is arranged near the inlet end of the air outlet channel 112. Located near the outlet end of the air outlet channel 112, a check plate assembly 120 is used to seal the air outlet channel 112. The check plate assembly 120 is configured such that when impacted by airflow, the check plates deform, allowing the air outlet channel 112 to communicate with the outside world. A driver 130 is connected to the air pump body 110. An eccentric assembly 140 is disposed within the placement chamber 111 and connected to the driver 130. A cup component 150 is located near the inlet end of the air outlet channel 112 and connected to the eccentric assembly 140. Exemplarily, the cup component 150 is made of a flexible material, such as rubber. The cup component 150 includes two compression chambers. The driver 130 drives the eccentric assembly 140 to rotate, causing one compression chamber to be in a compressed state and the other to be in a relaxed state. The deformation of the two compression chambers is used to simulate inhalation and exhalation. In this embodiment, the driver 130 is a motor. The first check plate 121 and the second check plate 122 are made of flexible materials, such as rubber. On the one hand, the check plate acts as a one-way valve to prevent gas backflow. Specifically, the gas can only flow from the inlet end to the outlet end of the air outlet channel 112, but cannot flow from the outlet end to the inlet end of the air outlet channel 112. That is to say, the present application replaces the one-way valve with the check plate group 120, and replaces the traditional complex one-way valve structure with a simple structure; on the other hand, the first check plate 121 and the second check plate 122 are used to achieve double sealing of the air outlet channel 112, which is beneficial to improving the sealing performance of the air pump module 100 and can avoid gas leakage.

[0054] The air pump module 100 of this embodiment is provided with a first check plate 121 and a second check plate 122 in the outlet channel 112. These first check plates 121 and 122 ensure that airflow can only flow in one direction through the outlet channel 112, preventing gas backflow. This helps avoid airflow turbulence or gas backflow during inflation and deflation, thereby improving the inflation efficiency and stability of the air pump. Furthermore, the unidirectional flow of the check plate assembly 120 allows the air pump to more precisely control airflow into the cuff during inflation and quickly and smoothly release gas during deflation, thereby improving the accuracy of blood pressure measurements. Furthermore, the first check plate 121 and the second check plate 122 form a double-sealing structure. Even if one check plate experiences slight deformation or wear, the other check plate will still provide a seal, thereby preventing gas leakage.

[0055] Please refer to Figure 7 and Figure 8 In one possible embodiment, the air pump body 110 includes a first plate 113, a second plate 114, and a top plate 115, arranged in sequence in a direction away from the leather cup component 150. A first check plate 121 is formed on the leather cup component 150, and a second check plate 122 is formed on the second plate 114. The check plate assembly 120 also includes a third check plate 123, which is formed on the second plate 114. In the direction of extension of the air outlet channel 112, the third check plate 123 is located between the first check plate 121 and the second check plate 122. In this embodiment, the third check plate 123 is made of a flexible material and can be deformed. It has the same function as the first check plate 121 and the second check plate 122. The first check plate 121, the second check plate 122, and the third check plate 123 work together to ensure that airflow can only pass through the air outlet channel 112 in one direction. The first check plate 121, the second check plate 122, and the third check plate 123 form a multi-sealing structure. By ensuring unidirectional airflow, the check plate assembly 120 can significantly reduce pressure fluctuations when the airflow enters the air pump, thereby further improving the accuracy of blood pressure measurement.

[0056] Please refer to Figure 7 and Figure 12 In one possible embodiment, the cup component 150 includes a plate body 151, a first cup portion 152, and a second cup portion 153. The first cup portion 152 and the second cup portion 153 are both connected to the plate body 151. A first notch 1511 is formed on the plate body 151. The first notch 1511 is located between the first cup portion 152 and the second cup portion 153. The first check plate 121 is formed in the first notch 1511. Exemplarily, two first notches 1511 and two first check plates 121 are provided, with one first notch 1511 and one first check plate 121 corresponding to the first cup portion 152, and the other first notch 1511 and one first check plate 121 corresponding to the second cup portion 153. In this embodiment, the depth of the first notch 1511 is greater than the thickness of the first check plate 121, and the cross-sectional area of ​​the first notch 1511 is greater than the cross-sectional area of ​​the first check plate 121. This is to provide space for the first check plate 121 to deform, so that the first check plate 121 does not interfere with other components during deformation. In addition, one compression chamber is formed in the first leather cup portion 152, and the other compression chamber is formed in the second leather cup portion 153.

[0057] Please refer to Figure 7 and Figure 8In a possible embodiment, the air pump body 110 further includes an upper shell 116 and a lower shell 117, the upper shell 116 is connected to the leather cup component 150, the lower shell 117 is connected to the upper shell 116 and is located on the side away from the first plate 113, the upper shell 116 and the lower shell 117 together constitute a placement cavity 111, the driving member 130 is connected to the lower shell 117, the upper shell 116 is formed with an air inlet 1161, the air inlet 1161 corresponds to the position of the first check plate 121, the lower shell 117 is formed with an air inlet groove 1171 connected to the placement cavity 111, a first notch 1511 is formed on the leather cup component 150, and the first check plate 121 is formed in the first notch 1511. Exemplarily, the air inlet groove 1171 is provided on a side facing away from the upper shell 116. In this embodiment, the air inlet groove 1171 is a rectangular groove. The placement chamber 111 communicates with the outside world through the air inlet groove 1171, and outside air enters the placement chamber 111 through the air inlet groove 1171. The gas in the placement chamber 111 enters the air outlet channel 112 through the air inlet 1161. It is understood that two air inlets 1161 are provided, corresponding to the two first check plates 121. When the first check plates 121 are not deformed, they abut against the air inlets 1161, thereby sealing the air inlets 1161.

[0058] Please refer to Figure 8 、 Figure 9 and Figure 10In one possible embodiment, an extended slot 1131, a second slot 1132 and a first through hole 1133 are formed on the side of the first plate 113 close to the leather cup component 150, the extended slot 1131 is communicated with the first slot 1511, the second slot 1132 is communicated with the extended slot 1131, and the first through hole 1133 is communicated with the second slot 1132; an inclined flow channel 1134 is formed on the side of the first plate 113 close to the second plate 114, the inclined flow channel 1134 includes an inclined slot 1134A and a diverter slot 1134B, the diverter slot 1134B is located in the middle of the inclined slot 1134A, and a boss 1134C extends from the diverter slot 1134B. Exemplarily, in this embodiment, the extended slot 1131 includes an inlet section 1131A and a conveying section 1131B. The inlet section 1131A is connected to the first slot 1511. That is, the inlet section 1131A corresponds to the position of the first slot 1511, and the inlet section 1131A and the conveying section 1131B are connected. The inlet section 1131A is arc-shaped, and the conveying section 1131B is a linear rectangular slot. The second slot 1132 is a circular slot as a whole, and the conveying section 1131B extends from the inlet section 1131A into the second slot 1132. The design of the arc-shaped slot of the inlet section 1131A allows the gas to flow along an arc path when entering the air pump. This streamlined design can effectively reduce turbulence and impact when the gas enters. The design of the arc-shaped slot of the inlet section 1131A can guide the gas to enter the air pump smoothly, reduce the generation of turbulence, and thus reduce the flow rate of the gas. The shape of the arcuate groove in inlet section 1131A ensures a more uniform pressure distribution for the gas upon entering the air pump. Due to the varying curvature of the arcuate groove, the gas is gradually guided and dispersed upon entry, avoiding airflow instability caused by localized excessive pressure. This helps stabilize the airflow and further slows the gas flow rate. During blood pressure measurement, airflow stability is crucial to the accuracy of the measurement results. Stable airflow can reduce measurement errors caused by airflow fluctuations, thereby improving blood pressure measurement accuracy. Furthermore, it will be appreciated that two first through-holes 1133 are provided, corresponding to the first leather cup portion 152 and the second leather cup portion 153, respectively. The first through-hole 1133 connects the second notch 1132 with the inclined flow channel 1134. The first through-hole 1133 is positioned to closely align with the third check plate 123. In the absence of external impact, the first through-hole 1133 is sealed by the third check plate 123.

[0059] Please refer to Figure 8 、 Figure 9 and Figure 10For example, the two ends of the inclined flow channel 1134 are respectively close to the two first through holes 1133, while the diverter groove 1134B is located in the middle of the inclined groove 1134A. That is to say, no matter which first through hole 1133 the airflow enters from, the distance to the diverter groove 1134B is the same. The direction from one of the first through holes 1133 toward the other first through hole 1133 is set as the first direction, and the extension direction of the inclined flow channel 1134 is set as the second direction. The first direction and the second direction have an inclined angle β. Specifically, in this embodiment, the inclined angle β is specifically set to 32°. Of course, in specific applications, the inclined angle β can be within the range of [20°, 45°]. The diverter groove 1134B is a circular groove, wherein the diameter of the diverter groove 1134B is greater than the width of the inclined groove 1134A. A protrusion 1134C is set at the center of the diverter groove 1134B, and the protrusion 1134C is cylindrical. The curved design of diverter groove 1134B, in conjunction with protrusion 1134C, diverts the gas entering inclined flow channel 1134, effectively reducing the concentrated impact of the airflow and thus lowering the gas flow rate. When the airflow passes through diverter groove 1134B, protrusion 1134C blocks the direct passage of the airflow, forcing the airflow to flow around protrusion 1134C. This increases the path length of the airflow, further slowing the gas flow rate. The combined design of the shape of diverter groove 1134B and protrusion 1134C ensures a more even distribution of the airflow as it enters the subsequent channel. As the airflow is diverted and bypasses protrusion 1134C, the pressure and velocity of the airflow are redistributed within diverter groove 1134B, avoiding localized overly strong or weak airflow and achieving a smoother airflow transition. Stable airflow can reduce measurement errors caused by airflow fluctuations, thereby improving the accuracy of blood pressure measurements. The sensor can more accurately sense pressure changes in a stable airflow, thereby improving the sensor's measurement accuracy.

[0060] Please refer to Figure 13 In one possible embodiment, the top plate 115 includes a connecting groove 1151 and an air outlet 1152. The first through-hole 1133 and the inclined flow channel 1134 are connected via the connecting groove 1151. The air outlet 1152 is also connected to the inclined flow channel 1134. A protruding stop 1153 extends from the connecting groove 1151. Exemplarily, two connecting grooves 1151 are provided, corresponding to the two first through-holes 1133. The air outlet 1152 is located between the two connecting grooves 1151. The air outlet 1152 is used to connect to the air supply module, which includes the solenoid valve 300, a constant-rate leakage valve, a sensor, and other structures. The air outlet 1152 is positioned in close contact with the second check plate 122. In the absence of external impact, the air outlet 1152 is sealed by the second check plate 122.

[0061] Please refer to Figure 13For example, two protruding stops 1153 are provided within a connecting groove 1151. Connecting groove 1151 includes a receiving groove 1151A and a conveying groove 1151B. Receiving groove 1151A is located at both ends of conveying groove 1151B, and protruding stops 1153 are located at the junction of receiving groove 1151A and conveying groove 1151B. Protruding stops 1153 have an arcuate surface on the side near receiving groove 1151A, and an inclined surface on the side near conveying groove 1151B. The gas outlets 1152 correspond to the positions of receiving groove 1151A. As will be understood, when gas flows out of one of the gas outlets 1152, it enters conveying groove 1151B from the gas outlet 1152 at the first end of connecting groove 1151. When gas flows out of the other gas outlet 1152, it enters conveying groove 1151B from the gas outlet 1152 at the second end of connecting groove 1151. Protruding stop 1153 is located within connecting groove 1151. When air flows through connecting groove 1151, protruding stop 1153 blocks the direct passage of air, forcing it to flow around protruding stop 1153. This helps increase the path length of the airflow, thereby further slowing the flow rate of the gas. The design of protruding stop 1153 enables more even distribution of airflow as it passes through connecting groove 1151. By slowing the airflow rate and evenly distributing it, protruding stop 1153 can significantly reduce pressure fluctuations when the airflow enters subsequent channels, providing more stable measurement conditions for the sensor, thereby improving detection accuracy when measuring blood pressure.

[0062] Please refer to Figure 14 In one possible embodiment, the eccentric assembly 140 includes an eccentric member 141 and a rocker arm 142. The eccentric member 141 includes a first connecting portion 1411 and a second connecting portion 1412. The first connecting portion 1411 and the second connecting portion 1412 have an inclined angle α therebetween. The eccentric member 141 is connected to the driving member 130 via the first connecting portion 1411 and to the cup member 150 via the second connecting portion 1412. For example, it can be understood that the first connecting portion 1411 and the second connecting portion 1412 are both hole-shaped. The rocker arm 142 is connected to the first cup portion 152 and the second cup portion 153, respectively. The driving member 130 drives the eccentric member 141 to rotate, and the rocker arm 142 generates eccentric motion driven by the eccentric member 141. Under the action of the rocker arm 142, the first cup portion 152 and the second cup portion 153 are deformed, thereby compressing or releasing the compression chamber, thereby completing the air intake and exhaust process. It is understandable that the first leather cup portion 152 and the second leather cup portion 153 are both made of a flexible material. In this embodiment, the tilt angle α is set to 12°. Of course, in specific applications, the tilt angle α can also be set to 10° or 15°.

[0063] Please refer to Figure 6 and Figure 7The air pump body 110 further includes a snap fastener 118, and the lower shell 117, the upper shell 116, the leather cup component 150, the first plate 113, the second plate 114, and the top plate 115 are all connected by the snap fastener 118. Exemplarily, the lower shell 117, the upper shell 116, the leather cup component 150, the first plate 113, the second plate 114, and the top plate 115 are arranged in sequence, and two snap fasteners 118 are provided, and the lower shell 117, the upper shell 116, the leather cup component 150, the first plate 113, the second plate 114, and the top plate 115 are all fixedly connected by the snap fasteners 118.

[0064] Please refer to Figure 12 The second plate 114 includes a third notch 1141 and a second through-hole 1142. The third check piece 123 is disposed within the third notch 1141. Two third notches 1141 and two third check pieces 123 are provided. One third notch 1141 and the third check piece 123 correspond to the first leather cup portion 152, and the other third notch 1141 and the third check piece 123 correspond to the second leather cup portion 153. In this embodiment, the depth of the third notch 1141 is greater than the thickness of the third check piece 123, and the cross-sectional area of ​​the third notch 1141 is larger than the cross-sectional area of ​​the third check piece 123. This provides space for the third check piece 123 to deform, preventing interference with other components during deformation. The connecting groove 1151 and the inclined flow channel 1134 are connected via the second through-hole 1142.

[0065] like Figure 8 As shown, Figure 8 The dotted lines and arrows shown represent the flow path of the gas in the air pump module 100. The working process of the air pump module 100 is as follows:

[0066] The driving member 130 drives the eccentric member 141 to rotate, and the eccentric member 141 drives the rocker 142 to perform eccentric motion. At this time, at least one of the first leather cup portion 152 and the second leather cup portion 153 is deformed and compressed, allowing external air to enter the placement chamber 111 through the air inlet groove 1171. Subsequently, the airflow within the placement chamber 111 pushes open the first check plate 121. The airflow enters from the air inlet 1161 and passes through the first notch 1511, the extension notch 1131, the second notch 1132, the first through hole 1133, the third notch 1141, the connecting groove 1151, the second through hole 1142, the inclined flow channel 1134, and finally flows out through the air outlet 1152. Specifically, the airflow pushes open the third check plate 123 at the location of the first through hole 1133, and pushes open the second check plate 122 at the location of the air outlet 1152.

[0067] It can be understood that the air outlet channel 112 is composed of the air inlet groove 1171, the placement cavity 111, the air inlet 1161, the first slot 1511, the extension slot 1131, the second slot 1132, the first through hole 1133, the third slot 1141, the connecting slot 1151, the second through hole 1142, the inclined flow channel 1134 and the air outlet 1152.

[0068] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A blood pressure watch pressurization system based on a micro high-density integrated air pump, characterized in that: include: The main body comprises an air cavity, a first port, a second port, a third port and a fourth port respectively connected to the air cavity, wherein the fourth port is used to communicate with the airbag; an air pump module, connected to the first port; a solenoid valve, connected to the second port, wherein the air pump module and the solenoid valve are both arranged on the first side of the main body component; A uniform air leakage valve is communicated with the third port, and the uniform air leakage valve is arranged on the second side of the main body component adjacent to the first side.

2. The blood pressure watch pressurization system based on a micro high-density integrated air pump according to claim 1 is characterized in that: The main body component includes a first mounting surface, a second mounting surface and a third mounting surface. The air pump module is installed on the first mounting surface, the solenoid valve is installed on the second mounting surface, and the uniform air leakage valve is installed on the third mounting surface. The first mounting surface is arranged parallel to the second mounting surface, and the second mounting surface and the third mounting surface are arranged perpendicularly.

3. The blood pressure watch pressurization system based on a micro high-density integrated air pump according to claim 2 is characterized in that: The air cavity includes a first chamber, the first opening is located at the first end of the first chamber, the second opening, the third opening and the fourth opening are all located at the second end of the first chamber, and in the direction from the first end to the second end, the first chamber first extends in the first direction and then extends in the second direction.

4. The blood pressure watch pressurization system based on a micro high-density integrated air pump according to claim 3 is characterized in that: The air cavity includes a second chamber communicating with the first chamber, and the pressurizing system further includes an air pressure sensor disposed in the second chamber.

5. The blood pressure watch pressurization system based on a micro high-density integrated air pump according to claim 4 is characterized in that: The pressurization system also includes an FPC cable, through which the air pump module, the solenoid valve and the air pressure sensor are electrically connected, and the FPC cable is attached to the outer surface of the main component; the uniform air leakage valve is in the shape of a thin sheet and is made of metal material, and the uniform air leakage valve has micropores.

6. The blood pressure watch pressurization system based on a micro high-density integrated air pump according to claim 1, characterized in that: The air pump module includes an air pump body, a check plate group, a driving member, an eccentric assembly and a leather cup component; the air pump body includes a placement cavity and an air outlet channel, the check plate group is arranged in the air outlet channel, the check plate group includes a first check plate and a second check plate, and the first check plate is arranged near the inlet end of the air outlet channel, and the second check plate is arranged near the outlet end of the air outlet channel, the check plate group is used to seal the air outlet channel, and the check plate group is configured as follows: when the check plate group is impacted by airflow, the check plate is deformed to connect the air outlet channel with the outside world, the driving member is connected to the air pump body, the eccentric assembly is arranged in the placement cavity and connected to the driving member, and the leather cup component is arranged near the inlet end of the air outlet channel and connected to the eccentric assembly.

7. The blood pressure watch pressurization system based on a micro high-density integrated air pump according to claim 6, characterized in that: In the direction away from the leather cup component, the air pump body includes a first plate, a second plate and a top plate arranged in sequence, the first check plate is formed on the leather cup component, the second check plate is formed on the second plate, and the check plate group also includes a third check plate, which is formed on the second plate.

8. The blood pressure watch pressurization system based on a micro high-density integrated air pump according to claim 7, characterized in that: The air pump body also includes an upper shell and a lower shell, the upper shell is connected to the leather cup component, the lower shell is connected to the upper shell and is located on the side away from the first plate, the upper shell and the lower shell together constitute the placement cavity, the driving member is connected to the lower shell, the upper shell is formed with an air inlet, the air inlet corresponds to the position of the first check plate, the lower shell is formed with an air inlet groove connected to the placement cavity, the leather cup component is formed with a first notch, and the first check plate is formed in the first notch.

9. The blood pressure watch pressurization system based on a micro high-density integrated air pump according to claim 8, characterized in that: An extended slot, a second slot and a first through hole are formed on the side of the first plate close to the leather cup component, the extended slot is connected to the first slot, the second slot is connected to the extended slot, and the first through hole is connected to the second slot; an inclined flow channel is formed on the side of the first plate close to the second plate, the inclined flow channel includes an inclined groove and a diverter groove, the diverter groove is located in the middle of the inclined groove, and a protrusion extends from the diverter groove.

10. The blood pressure watch pressurization system based on a micro high-density integrated air pump according to claim 9, characterized in that: The top plate comprises a connecting groove and an air outlet. The first through hole and the inclined flow channel are communicated through the connecting groove. The air outlet is communicated with the inclined flow channel. A convex stop portion extends from the connecting groove.

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