Ceramic pump capable of improving applicability

Abstract

The invention discloses a ceramic pump capable of improving applicability, and relates to the technical field of micro air pumps. The ceramic pump capable of improving the applicability comprises a base, wherein a flow channel groove and a vibration isolation groove are formed in the base; the flexible sheet is laid on the base, a placement groove is formed in the mapping position, on the flexible sheet, of the vibration isolation groove, an elastic sheet is arranged in the placement groove, a first pump cavity is formed by the flow channel groove and the flexible sheet, and a flow channel hole is formed in the center of the flexible sheet in a penetrating mode; the ceramic chip is fixedly connected with one surface of the ceramic substrate, and a first boss is arranged on the circumference of the other surface of the ceramic substrate and is fixedly connected with the elastic sheet; the inflation assembly is arranged on the flexible piece, a second pump cavity is formed by the inflation assembly and the flexible piece, and the first pump cavity communicates with the second pump cavity through a flow channel hole; and the driving assembly is used for driving the ceramic plate to move back and forth in the second pump cavity. According to the ceramic pump, the output performance of the air pump can be improved, noise can be reduced, and therefore the application range of the piezoelectric air pump is widened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of micro air pump, in particular to a ceramic pump with improved applicability. BACKGROUND

[0002] Micro air pumps are widely used in medical, electronic, precision instruments and other fields. Traditional air pumps are mostly driven by electromagnetic or piezoelectric.

[0003] In the prior art, the electromagnetic air pump drives the piston to move through the electromagnetic coil. The advantage is that the driving force is large, but when the electromagnet is attracted each time, the movable iron core will hit the fixed iron core at a very high speed, which will produce noise, and there is also electromagnetic noise.

[0004] To solve the noise problem of the air pump, a piezoelectric air pump is used instead of an electromagnetic air pump. The piezoelectric air pump uses the inverse piezoelectric effect of piezoelectric ceramics to drive the diaphragm to vibrate, thereby producing deformation, and then the deformation causes the volume of the pump cavity to change to realize gas output or use the piezoelectric vibrator to generate fluctuations to realize transmission work. However, since the piezoelectric air pump relies on the "piezoelectric effect" which can only produce a micron-level small displacement, the volume of gas pumped at a time is very limited. Although a part of the flow can be compensated by high frequency operation, it is limited by air flow inertia, valve response and limited driving force, and the final pressure and flow performance cannot be compared with the electromagnetic or motor-driven air pump. At the same time, since the ceramic sheet of the piezoelectric air pump needs to drive the diaphragm of the pump cavity to vibrate, the ceramic sheet and the diaphragm need to be fixed by glue. However, the height of the glue at each place cannot be accurately controlled, and the unevenness caused by the glue will cause the air pump to produce whistling sound and noise. Therefore, the existing piezoelectric air pump cannot be applied to the scene with output performance and low noise, thereby greatly limiting the application scene of the piezoelectric air pump. SUMMARY

[0005] In view of the defects in the prior art, the technical problem solved by the present application is how to broaden the application scene of the piezoelectric air pump.

[0006] To achieve the above purpose, the ceramic pump with improved applicability provided by the present application comprises: a base, a flow channel groove and a vibration isolation groove are formed on the base, and a gas inlet is arranged on the flow channel groove; a flexible sheet is arranged on the base, a placement groove is formed at the mapping position of the vibration isolation groove on the flexible sheet, and an elastic sheet is arranged in the placement groove; the flow channel groove and the flexible sheet form a first pump cavity, and a flow channel hole is arranged at the center of the flexible sheet; a ceramic assembly comprising a ceramic sheet and a ceramic substrate, the ceramic sheet is fixedly connected to one side of the ceramic substrate, a first boss is arranged on the other side of the ceramic substrate, and the first boss is fixedly connected to the elastic sheet; An inflating assembly is arranged on the flexible sheet, the inflating assembly and the flexible sheet form a second pump cavity, the first pump cavity and the second pump cavity are communicated through the flow channel hole, and the inflating assembly is used for inflating the air flow inside the second pump cavity into the container. A driving assembly is used for driving the ceramic sheet to move back and forth in the axial direction inside the second pump cavity.

[0007] By adopting the above technical scheme, the driving assembly drives the ceramic sheet to move in the axial direction, the ceramic sheet drives the ceramic substrate to move, the first boss of the ceramic substrate is connected with the flexible sheet through the elastic sheet, so the middle part of the flexible sheet is driven to move back and forth, the flow channel groove and the flexible sheet form the first pump cavity, so the volume of the first pump cavity changes with the movement of the flexible sheet, when the volume increases, the inside of the first pump cavity generates a transient negative pressure, the outside air is sucked into the first pump cavity from the air inlet, when the volume decreases, the inside of the first pump cavity generates a transient positive pressure, the gas in the first pump cavity is discharged into the second pump cavity through the flow channel hole, and then the gas is inflated into the container through the inflating assembly; in this process, the elastic sheet moves back and forth with the ceramic substrate, that is, the elastic sheet moves close to and away from the vibration isolation groove, compared with the existing fixing between the ceramic substrate and the flexible sheet through the glue, the elastic sheet makes the movement range of the flexible sheet larger, that is, the range of the volume change of the first pump cavity is increased, so that a larger pressure difference is generated, and thus the output performance of the air pump is improved; at the same time, the design of the elastic sheet makes the fixing points between the ceramic substrate and the flexible sheet the same, so that the howling sound generated due to the inconsistent height of the fixing points is reduced, and the elastic sheet has inertia when it rebounds and moves to the inside of the vibration isolation groove, so that the collision between the elastic sheet and the flexible sheet caused by the rebound of the elastic sheet is avoided, and the howling sound is generated; therefore, the ceramic pump not only improves the output performance of the air pump, but also reduces the noise, so as to widen the application scenarios of the piezoelectric air pump.

[0008] In an embodiment, the flexible sheet is divided into a first region, a second region and a third region from inside to outside, the flow channel hole is arranged at the center of the first region, a plurality of placement grooves are arranged in the second region, and the distances between the plurality of placement grooves and the flow channel hole are the same, and the third region is fixedly connected with the base.

[0009] By adopting the above technical scheme, the flow channel hole is arranged at the center of the plurality of placement grooves, when the ceramic assembly drives the flexible sheet to move, the movement range of the flow channel hole is the largest on the flexible sheet, so as to further increase the range of the volume change of the first pump cavity, and thus further improve the output performance of the air pump.

[0010] In an embodiment, one side of the ceramic substrate with the first boss is provided with a second boss, the second boss is a cylinder, the second boss abuts against the first region, and the second boss is used for plugging the flow channel hole.

[0011] By adopting the technical scheme, the second boss can block the flow channel hole when the ceramic substrate is not moving, and there is a gap between the ceramic substrate and the flow channel hole when the ceramic substrate is moving, so that the gas in the first pump cavity flows into the second pump cavity.

[0012] In an embodiment, the mapping position of the flow channel groove on the flexible sheet is in the first area, the periphery of the first boss is provided with a plurality of third bosses, and the mapping position of the third boss on the base is located at the periphery of the flow channel groove.

[0013] By adopting the technical scheme, when the flexible sheet is installed, the third boss can press the first area of the flexible sheet against the periphery of the flow channel groove of the base, so that the flexible sheet is prevented from being wrinkled during installation, and the subsequent work is prevented from producing whistling sound due to unevenness.

[0014] In an embodiment, the second boss and the third boss have a flow guide groove therebetween, and the two adjacent second bosses have a flow guide opening therebetween.

[0015] By adopting the technical scheme, the third boss not only has the effect of preventing the flexible sheet from being wrinkled during installation, but also forms a flow guide groove with the second boss, so that the gas in the first pump cavity can flow along the flow guide groove and flow out of the flow guide opening, thereby improving the flow of the gas into the second pump cavity and improving the output performance of the gas pump.

[0016] In an embodiment, the driving assembly includes a beryllium copper sheet, an insulating sheet, and two copper bars, the beryllium copper sheet is arranged between the flexible sheet and the inflation assembly, the insulating sheet is arranged between the flexible sheet and the beryllium copper sheet, one of the copper bars is arranged on the beryllium copper sheet, and the other copper bar is arranged on the flexible sheet, the copper bars are used to be connected to alternating current, and a driving member is arranged between the beryllium copper sheet and the ceramic sheet, the driving member is used to drive the ceramic sheet to move.

[0017] By adopting the technical scheme, the alternating current is connected to the ceramic pump through the beryllium copper sheet and the flexible sheet to drive the ceramic sheet to move, and the insulating sheet is arranged between the beryllium copper sheet and the flexible sheet to prevent short circuit and affect the normal work of the ceramic sheet.

[0018] In an embodiment, the insulating sheet clamps the third area of the flexible sheet with the base.

[0019] By adopting the technical scheme, the insulating sheet not only has the effect of preventing short circuit, but also can press the third area of the flexible sheet against the base, thereby reinforcing the fixing stability between the third area of the flexible sheet and the base, further preventing the flexible sheet from being wrinkled and causing whistling sound.

[0020] In one embodiment, the inflating assembly comprises an upper layer plate, a lower layer plate and a film valve, the upper layer plate is provided with a first recess, the lower layer plate is provided with a second recess, the film valve is used to separate the first recess and the second recess, a first transmission port is arranged in the first recess, the first transmission port is used to connect the second pump and the first recess, a fourth boss is arranged in the first recess, the fourth boss is located above the second recess, a second transmission port is arranged in the mapping position of the fourth boss on the film valve, and an inflating port is arranged in the second recess.

[0021] By using the above technical scheme, when the first pump cavity generates transient negative pressure, the film valve is closely attached to the fourth boss due to suction force, so as to avoid sucking the gas in the container into the first pump cavity, when the first pump cavity generates transient positive pressure, the film valve is separated from the fourth boss due to the pushing of the gas flow, the gas will enter the second recess from the second transmission port, and enter the container from the inflating port.

[0022] In one embodiment, the flow channel groove comprises a pump cavity groove and a damping groove, the periphery of the pump cavity groove is communicated with a plurality of damping grooves, and the end of the damping groove away from the pump cavity groove is provided with an air inlet.

[0023] By using the above technical scheme, when the first pump cavity generates transient positive pressure, the damping groove will cause resistance to the gas discharged from the air inlet, so that more positive pressure gas pushes open the film valve and inflates the container, and the output performance of the air pump is further improved.

[0024] In summary, the present application has at least one of the following beneficial technical effects: 1、 by driving assembly ceramic piece along the axial direction movement, ceramic piece drive ceramic substrate movement, ceramic substrate first boss through the elastic sheet and flexible sheet for connection, so will drive flexible sheet middle part do to and fro movement, because the flow channel groove and flexible sheet form the first pump cavity, so the volume of the first pump cavity will change with the movement of flexible sheet, when the volume is larger, the first pump cavity inside will produce transient negative pressure, the outside air from the air inlet into the first pump cavity, when the volume is small, the first pump cavity inside will produce transient positive pressure, the gas of the first pump cavity from the flow channel hole into the second pump cavity, again through the inflation assembly gas into the container inside, in this process, the elastic sheet can along with ceramic substrate to and fro movement, that is, the elastic sheet is close to and away from the vibration isolation groove movement, relative to the existing through the glue between the ceramic substrate and flexible sheet fixed, the elastic sheet makes the flexible sheet movement amplitude is larger, that is, increase the range of the first pump cavity volume change, thereby generating greater pressure difference, so as to improve the output performance of the air pump, at the same time, the elastic sheet design can make the fixed point between the ceramic substrate and flexible sheet is the same, thereby reducing the howling sound produced by the fixed height is not consistent, and, the elastic sheet has inertia when rebounding, will move to the inside of the vibration isolation groove, thereby avoiding the elastic sheet rebound and flexible sheet collision, resulting in the generation of howling sound, therefore, the ceramic pump not only can improve the output performance of the air pump, but also can reduce the noise, thereby widening the applicable scene of piezoelectric air pump; 2、 through the design of the second boss and the third boss on the ceramic substrate, not only can avoid the flexible sheet from wrinkling during installation, resulting in howling sound due to unevenness in subsequent work, but also the third boss can form a flow guide groove with the second boss, the gas entering the second pump cavity from the first pump cavity can flow along the flow guide groove and flow out from the flow guide port, thereby improving the flow of gas into the second pump cavity and improving the output performance of the air pump; 3、 through the design of the inflation assembly and the flow channel groove, when the first pump cavity produces transient positive pressure, the diaphragm valve separates from the fourth boss due to the pushing of the gas flow, the gas enters the second recess from the second transfer port, and enters the container from the inflation port, and the damping groove causes resistance to the gas discharge from the air inlet, thereby causing more positive pressure gas to push open the diaphragm valve and fill the container, further improving the output performance of the air pump. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 Structure diagram of the ceramic pump for improving the applicability of the embodiment of the present application; Figure 2 Explosion diagram Figure 1 Figure 3 Structure diagram of the ceramic substrate of the embodiment of the present application; Figure 4 Structure diagram of the flexible sheet of the embodiment of the present application; Figure 5 ​Structure schematic view of the air charging assembly in the embodiment of the present application; Figure 6 Structure schematic view of the base in the embodiment of the present application. Figure 5 A-A sectional view of the base in the embodiment of the present application. Figure 7 Structure schematic view of the air charging assembly in the embodiment of the present application.

[0026] In the figure: 1-base, 101-flow channel groove, 1011-pump cavity groove, 1012-damping groove, 102-air inlet, 103-vibration isolation groove, 2-air charging assembly, 201-upper layer plate, 202-lower layer plate, 203-air charging port, 204-first recess, 205-first transmission port, 206-fourth boss, 207-second recess, 208-second transmission port, 209-thin film valve, 3-flexible sheet, 301-spring sheet, 302-putting groove, 303-flow channel hole, 304-first area, 305-second area, 306-third area, 4-ceramic substrate, 401-first boss, 402-second boss, 403-third boss, 404-flow guide groove, 405-flow guide port, 5-ceramic sheet, 6-insulating sheet, 7-beryllium copper sheet, 8-copper bar, 9-driving member. DETAILED DESCRIPTION

[0027] The embodiment of the present application is further described in detail below with reference to the accompanying drawings.

[0028] The ceramic pump for improving applicability in the embodiment of the present application, as shown in Figure 1 , Figure 2 , Figure 3 , comprises a base 1, wherein a flow channel groove 101 and a vibration isolation groove 103 are formed on the base 1, and an air inlet 102 is arranged through the flow channel groove 101. A flexible sheet 3 is laid on the base 1, and a putting groove 302 is formed at the mapping position of the vibration isolation groove 103 on the flexible sheet 3, wherein a spring sheet 301 is arranged inside the putting groove 302, the periphery of the spring sheet 301 is fixedly connected with the inner wall of the putting groove 302, and the central part of the spring sheet 301 can be deformed, i.e. concave inwardly and convex outwardly, the flow channel groove 101 and the flexible sheet 3 form a first pump cavity, and a flow channel hole 303 is arranged through the center of the flexible sheet 3. A ceramic assembly comprises a ceramic sheet 5 and a ceramic substrate 4, the ceramic sheet 5 is fixedly connected with one side of the ceramic substrate 4, and a first boss 401 is arranged on the circumference of the other side of the ceramic substrate 4, and the first boss 401 is fixedly connected with the spring sheet 301. An air charging assembly 2 is arranged on the flexible sheet 3, the air charging assembly 2 and the flexible sheet 3 form a second pump cavity, the first pump cavity and the second pump cavity are communicated through the flow channel hole 303, and the air charging assembly 2 is used for charging the air flow inside the second pump cavity into a container. A driving assembly is used for driving the ceramic sheet 5 to move back and forth in the second pump cavity along the axial direction.

[0029] Therefore, the driving assembly drives the ceramic sheet 5 to move along the axial direction, the ceramic sheet 5 drives the ceramic substrate 4 to move, the first boss 401 of the ceramic substrate 4 is connected with the flexible sheet 3 through the elastic sheet 301, so that the middle part of the flexible sheet 3 is driven to move back and forth, the flow channel groove 101 and the flexible sheet 3 form a first pump cavity, so that the volume of the first pump cavity changes with the movement of the flexible sheet 3, when the volume increases, the inside of the first pump cavity generates a transient negative pressure, and the outside air is sucked into the first pump cavity from the air inlet 102, when the volume decreases, the inside of the first pump cavity generates a transient positive pressure, and the gas in the first pump cavity is discharged into the second pump cavity through the flow channel hole 303, and then the gas is filled into the container through the inflation assembly 2; in this process, the elastic sheet 301 can move back and forth with the ceramic substrate 4, that is, the elastic sheet 301 moves close to and away from the vibration isolation groove 103, compared with the existing fixing between the ceramic substrate 4 and the flexible sheet 3 through glue, the elastic sheet 301 makes the movement range of the flexible sheet 3 larger, that is, the range of the volume change of the first pump cavity is increased, so that a larger pressure difference is generated, and thus the output performance of the air pump can be improved; at the same time, the design of the elastic sheet 301 can make the fixing points between the ceramic substrate 4 and the flexible sheet 3 at each position be the same, so that the whistling sound generated due to the inconsistent height of the fixing positions is reduced, and the elastic sheet 301 has inertia when rebounding, and moves to the inside of the vibration isolation groove 103, so that the collision between the elastic sheet 301 and the flexible sheet 3 during rebounding is avoided, and the generation of the whistling sound is avoided; therefore, the ceramic pump not only can improve the output performance of the air pump, but also can reduce the noise, so as to widen the application scenarios of the piezoelectric air pump.

[0030] It should be noted that the flow channel groove 101 is "indirect", not "straight", and the channel between the air inlet 102 on the base 1 and the first pump cavity is not a straight hole, but a section of indirect and narrow flow channel, the flow of gas has inertia and resistance, and the pressure generated is transient, so the pressure generated by the first pump cavity is more easily released to the second pump cavity, and then the gas is filled into the container through the inflation assembly 2.

[0031] Preferably, referring to Figure 4 as shown, a specific structure of the flexible sheet 3 is provided: The flexible sheet 3 is divided into a first region 304, a second region 305 and a third region 306 from inside to outside, the flow channel hole 303 is arranged at the center of the first region 304, a plurality of placement grooves 302 are arranged in the second region 305, and the distances between the plurality of placement grooves 302 and the flow channel hole 303 are the same, and the third region 306 is fixedly connected with the base 1.

[0032] Specifically, the flexible sheet 3 is divided into the first region 304, the second region 305 and the third region 306 from inside to outside, the centers of the first region 304 and the second region 305 coincide, and the flow channel hole 303 is arranged at the center, and at least three placing grooves 302 are arranged around the circumference in the second region 305, the elastic sheet 301 is arranged in each placing groove 302, and the placing grooves 302 are uniformly distributed on the circumference, so that the ceramic substrate 4 is more uniform when the flexible sheet 3 is driven to move, and the movement range of the flow channel hole 303 is the largest on the flexible sheet 3, so as to further increase the range of the first pump cavity volume change, thereby further improving the output performance of the air pump; at the same time, the third region 306 is fixedly connected with the base 1, so as to avoid that the fixation of the flexible sheet 3 and the base 1 affects the change of the first pump cavity volume.

[0033] Preferably, referring to Figure 4 As shown in the figure, the ceramic substrate 4 has a second boss 402 on one side of the first boss 401, the second boss 402 is a cylinder, and the second boss 402 abuts against the first region 304, and the second boss 402 is used to block the flow channel hole 303.

[0034] Specifically, the second boss 402 is a cylinder arranged on one side of the first boss 401 of the ceramic substrate 4, the center of the second boss 402 coincides with the center of the ceramic substrate 4, and the centers of the two can also not coincide, but it is necessary to meet that the mapping position of the second boss 402 on the flexible sheet 3 completely covers the flow channel hole 303, so as to block the flow channel hole 303 when the ceramic pump is not working, and avoid that external gas flows into the second pump cavity when not working, thereby affecting the inflation of the container; when the ceramic pump works, that is, when the ceramic substrate 4 moves, because the movement range of the flexible sheet 3 is smaller than that of the ceramic substrate 4, the second boss 402 is separated from the flow channel hole 303, and the gap between the two makes the gas in the first pump cavity flow into the second pump cavity.

[0035] It should be noted that the thickness of the first boss 401 is the same as that of the second boss 402, so as to avoid that when the thickness of the first boss 401 is greater than that of the second boss 402, the second boss 402 cannot block the flow channel hole 303.

[0036] Further, referring to Figure 4 As shown in the figure, the mapping position of the flow channel groove 101 on the flexible sheet 3 is in the first region 304, the periphery of the first boss 401 is provided with a plurality of third bosses 403, the mapping position of the third boss 403 on the base 1 is located at the periphery of the flow channel groove 101; the second boss 402 and the third boss 403 have a flow guide groove 404 therebetween, and two adjacent second bosses 402 have a flow guide port 405 therebetween.

[0037] Specifically, during installation, the third boss 403 can press the first area 304 of the flexible sheet 3 against the periphery of the flow channel groove 101 of the base 1, thereby avoiding wrinkles of the flexible sheet 3 during installation, and causing subsequent work to produce whistling due to unevenness; at the same time, the third boss 403 can also form a flow guide groove 404 with the second boss 402, and the gas entering the second pump cavity from the first pump cavity can flow along the flow guide groove 404 and flow out from the flow guide port 405, thereby improving the flow of gas into the second pump cavity and improving the output performance of the air pump.

[0038] Preferably, referring to Figure 2 As shown in the specific structure of the drive assembly: The drive assembly includes a beryllium copper sheet 7, an insulating sheet 6, and two copper bars 8. The beryllium copper sheet 7 is arranged between the flexible sheet 3 and the inflation assembly 2, the insulating sheet 6 is arranged between the flexible sheet 3 and the beryllium copper sheet 7, one of the copper bars 8 is arranged on the beryllium copper sheet 7, and the other copper bar 8 is arranged on the flexible sheet 3. The copper bars 8 are used to connect to alternating current, and the beryllium copper sheet 7 and the ceramic sheet 5 are provided with a drive member 9 for driving the ceramic sheet 5 to move.

[0039] Specifically, one of the two copper bars 8 is arranged on the beryllium copper sheet 7, and the other copper bar 8 is arranged on the flexible sheet 3. The positive and negative poles of the external power supply are respectively connected to the two copper bars 8, so that the beryllium copper sheet 7 is driven. The beryllium copper sheet 7 and the ceramic sheet 5 are provided with a drive member 9 for transmitting alternating current to the ceramic sheet 5 to drive the ceramic sheet 5 to move. When the beryllium copper sheet 7 directly contacts the flexible sheet 3, the current will be directly transmitted on the two, so it is necessary to arrange an insulating sheet 6 between the beryllium copper sheet 7 and the flexible sheet 3 to avoid short circuit and affect the normal work of the ceramic sheet 5.

[0040] Further, the insulating sheet 6 clamps the third area 306 of the flexible sheet 3 and the base 1.

[0041] Specifically, the insulating sheet 6 not only prevents short circuit, but also can press the third area 306 of the flexible sheet 3 against the base 1, thereby reinforcing the fixing stability between the third area 306 of the flexible sheet 3 and the base 1, and further avoiding wrinkles of the flexible sheet 3 and causing whistling.

[0042] Preferably, referring to Figure 5 , Figure 6 As shown in the specific structure of the inflation assembly 2: The inflating assembly 2 comprises an upper layer plate 201, a lower layer plate 202 and a diaphragm valve 209, the upper layer plate 201 is provided with a first recess 204, the lower layer plate 202 is provided with a second recess 207, the diaphragm valve 209 is used to separate the first recess 204 and the second recess 207, the first recess 204 is provided with a first transmission port 205, the first transmission port 205 is used to connect the second pump and the first recess 204, the first recess 204 is provided with a fourth boss 206, the fourth boss 206 is located above the second recess 207, the fourth boss 206 is provided with a second transmission port 208, the second recess 207 is provided with an inflating port 203.

[0043] Specifically, when the ceramic pump is not working, the upper layer plate 201 and the lower layer plate 202 clamp the diaphragm valve 209, when the first pump cavity generates transient negative pressure, the diaphragm valve 209 is tightly attached to the fourth boss 206 due to suction, the second transmission port 208 is blocked by the fourth boss 206, avoiding the gas in the container from being sucked into the first pump cavity, when the first pump cavity generates transient positive pressure, the diaphragm valve 209 is pushed by the gas flow, driving the diaphragm valve 209 to move to the inside of the second recess 207, so that the diaphragm valve 209 is separated from the fourth boss 206, the gas will flow along the gap between the diaphragm valve 209 and the fourth boss 206, then enter the second recess 207 from the second transmission port 208, and enter the container from the inflating port 203.

[0044] Further, referring to Figure 7 As shown, the flow channel groove 101 comprises a pump cavity groove 1011 and a damping groove 1012, the periphery of the pump cavity groove 1011 is connected with a plurality of damping grooves 1012, the end of the damping groove 1012 away from the pump cavity groove 1011 is provided with an air inlet 102.

[0045] Specifically, when the first pump cavity generates transient positive pressure, the damping groove 1012 will cause resistance to the gas discharged from the air inlet 102, so that more positive pressure gas pushes open the diaphragm valve 209, and fills the container, further improving the output performance of the air pump.

[0046] The above description is merely a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ceramic pump with improved applicability, characterized in that, It includes: The base (1) has a flow channel groove (101) and a vibration isolation groove (103) on it, and an air inlet (102) is provided through the flow channel groove (101). A flexible sheet (3) is laid on a base (1). The vibration isolation groove (103) has a placement groove (302) at the mapping position on the flexible sheet (3). A spring sheet (301) is provided inside the placement groove (302). The flow channel groove (101) and the flexible sheet (3) form a first pump chamber. A flow channel hole (303) is provided in the center of the flexible sheet (3). The ceramic component includes a ceramic sheet (5) and a ceramic substrate (4). The ceramic sheet (5) is fixedly connected to one side of the ceramic substrate (4), and a first protrusion (401) is provided on the circumference of the other side of the ceramic substrate (4). The first protrusion (401) is fixedly connected to a spring piece (301). An inflation assembly (2) is disposed on a flexible sheet (3). The inflation assembly (2) and the flexible sheet (3) form a second pump chamber. The first pump chamber and the second pump chamber are connected through a flow channel hole (303). The inflation assembly (2) is used to fill the container with the airflow inside the second pump chamber. A drive assembly for driving the ceramic plate (5) to reciprocate along the axial direction inside the second pump chamber.

2. The ceramic pump with improved applicability as described in claim 1, characterized in that: The flexible sheet (3) is divided into a first region (304), a second region (305) and a third region (306) from the inside to the outside. The flow channel hole (303) is located in the center of the first region (304). Multiple placement slots (302) are opened in the second region (305), and the distance between the multiple placement slots (302) and the flow channel hole (303) is the same. The third region (306) is fixedly connected to the base (1).

3. The ceramic pump with improved applicability as described in claim 2, characterized in that: The ceramic substrate (4) has a second protrusion (402) on one side of the first protrusion (401). The second protrusion (402) is cylindrical and abuts against the first region (304). The second protrusion (402) is used to block the flow channel hole (303).

4. The ceramic pump with improved applicability as described in claim 3, characterized in that: The mapping position of the flow channel groove (101) on the flexible sheet (3) is in the first region (304), and a plurality of third protrusions (403) are provided on the periphery of the first protrusion (401). The mapping position of the third protrusions (403) on the base (1) is located on the periphery of the flow channel groove (101).

5. The ceramic pump with improved applicability as described in claim 4, characterized in that: There is a flow channel (404) between the second boss (402) and the third boss (403), and there is a flow port (405) between two adjacent second bosses (402).

6. The ceramic pump with improved applicability as described in claim 2, characterized in that: The drive assembly includes a beryllium copper sheet (7), an insulating sheet (6), and two copper busbars (8). The beryllium copper sheet (7) is disposed between the flexible sheet (3) and the inflation assembly (2). The insulating sheet (6) is disposed between the flexible sheet (3) and the beryllium copper sheet (7). One copper busbar (8) is disposed on the beryllium copper sheet (7), and the other copper busbar (8) is disposed on the flexible sheet (3). The copper busbar (8) is used to connect to AC power. A drive element (9) is disposed between the beryllium copper sheet (7) and the ceramic sheet (5). The drive element (9) is used to drive the ceramic sheet (5) to move.

7. The ceramic pump with improved applicability as described in claim 6, characterized in that: The insulating sheet (6) and the base (1) clamp the third region (306) of the flexible sheet (3).

8. The ceramic pump with improved applicability as described in claim 1, characterized in that: The inflation assembly (2) includes an upper plate (201), a lower plate (202), and a diaphragm valve (209). The upper plate (201) has a first groove (204), and the lower plate (202) has a second groove (207). The diaphragm valve (209) is used to separate the first groove (204) and the second groove (207). The first groove (204) has a first transmission port (205) inside it. The first transmission port (205) is used to connect the second pump and the first groove (204). The first groove (204) has a fourth boss (206) inside it. The fourth boss (206) is located directly above the second groove (207). The second transmission port (208) is located at the mapping position of the fourth boss (206) on the diaphragm valve (209). The second groove (207) has an inflation port (203) inside it.

9. The ceramic pump with improved applicability as described in claim 8, characterized in that: The flow channel (101) includes a pump chamber channel (1011) and a damping channel (1012). Several damping channels (1012) are connected to the periphery of the pump chamber channel (1011). An air inlet (102) is provided at the end of the damping channel (1012) away from the pump chamber channel (1011).

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