Piezoelectric air pump for pneumatic massage system and pneumatic massage system

Abstract

The invention relates to the technical field of piezoelectric air pumps, and discloses a piezoelectric air pump and a pneumatic massage system.The piezoelectric air pump shell is characterized in that a containing chamber, an air inlet channel and an exhaust channel are formed in the shell, a circuit board is arranged in the containing chamber, an avoiding hole is formed in the circuit board, and an annular sealing piece is arranged in the avoiding hole; a containing cavity is defined by part of the inner wall of the shell and the annular sealing piece, a piezoelectric vibrator is arranged in the containing cavity, and the containing cavity is communicated with the air inlet channel and the air outlet channel. And the circuit board is electrically connected with the piezoelectric vibrator. Through the mode, the piezoelectric air pump provided by the invention omits a shell used for independently wrapping the circuit board of a traditional piezoelectric air pump, and shortens a connection path between the circuit board and the piezoelectric vibrator, so that the space utilization rate of the piezoelectric air pump is improved, and the manufacturing cost is saved.

Description

Technical Field

[0001] The present application relates to the technical field of piezoelectric pumps, and in particular to a piezoelectric pump for a pneumatic massage system and a pneumatic massage system. Background Art

[0002] At present, the piezoelectric vibrator and the circuit board of the piezoelectric pump are respectively arranged in two different shells, and the piezoelectric vibrator is connected to the circuit board after the lead wire passes through the two shells. The method of separately arranging the piezoelectric vibrator and the circuit board requires two shells to be respectively arranged to accommodate the piezoelectric vibrator and the circuit board, which occupies a large space, and the two different shells need to be disassembled and assembled separately during use and maintenance, which is cumbersome. Summary of the invention

[0003] In view of the problems existing in the background technology, the purpose of the present application is to provide a piezoelectric pump and a pneumatic massage system for a pneumatic massage system, so as to at least solve the problems existing in the prior art.

[0004] According to the first aspect of the present application, a piezoelectric pump is provided, comprising a shell, wherein a accommodating chamber, an air inlet channel and an exhaust channel are arranged inside the shell, a circuit board is arranged in the accommodating chamber, a avoidance hole is opened on the circuit board, an annular seal is arranged in the avoidance hole, a part of the inner wall of the shell and the annular seal are combined to form an accommodating chamber, a piezoelectric vibrator is arranged in the accommodating chamber, the accommodating chamber is communicated with the air inlet channel and the exhaust channel respectively, and the circuit board is electrically connected to the piezoelectric vibrator.

[0005] Optionally, the shell includes a first shell and a second shell, the first shell and the second shell are butted together to form the accommodating chamber, partial side walls of the first shell and partial side walls of the second shell respectively clamp opposite ends of the annular seal, and partial side walls of the first shell, the annular seal and partial side walls of the second shell together enclose the accommodating cavity.

[0006] Optionally, the annular seal includes a first annular seal and a second annular seal, the first annular seal and the second annular seal jointly clamp the piezoelectric vibrator, and the piezoelectric vibrator divides the accommodating cavity into a first piezoelectric cavity and a second piezoelectric cavity.

[0007] Optionally, the first annular seal and the second annular seal jointly clamp the periphery of the piezoelectric vibrator, a wiring portion extends from the periphery of the piezoelectric vibrator, and the wiring portion is electrically connected to the circuit board.

[0008] Optionally, the piezoelectric vibrator includes a flexible circuit board and piezoelectric ceramics and metal sheets respectively arranged on both sides of the flexible circuit board, the first annular seal and the second annular seal jointly clamp the periphery of the flexible circuit board, and the periphery of the flexible circuit board extends to form the wiring portion.

[0009] Optionally, the wiring portion is welded to the circuit board.

[0010] Optionally, the number of the avoidance holes, the annular seals, the accommodating chambers and the piezoelectric vibrators are at least two and correspond one to one. One piezoelectric vibrator is arranged in one of the accommodating chambers. A first series channel is provided in the first shell, and each of the first piezoelectric chambers is connected in series through the first series channel. A second series channel is provided in the second shell, and each of the second piezoelectric chambers is connected in series through the second series channel.

[0011] Optionally, the first shell is detachably fixed to the second shell.

[0012] Optionally, the first shell is screwed and fixed to the second shell.

[0013] According to a second aspect of the present application, a pneumatic massage system is provided, comprising the piezoelectric pump as described above.

[0014] The beneficial effects of the embodiments of the present application are as follows: Different from the prior art, the piezoelectric pump provided by the embodiments of the present application includes a shell, a housing chamber, an air inlet channel and an exhaust channel are arranged inside the shell, a circuit board is arranged in the housing chamber, a position avoidance hole is opened on the circuit board, an annular seal is arranged in the position avoidance hole, part of the inner wall of the shell and the annular seal are surrounded to form a housing chamber, a piezoelectric vibrator is arranged in the housing chamber, the housing chamber is communicated with the air inlet channel and the exhaust channel respectively, and the circuit board is electrically connected to the piezoelectric vibrator. Compared with the traditional piezoelectric pump which arranges the piezoelectric vibrator and the circuit board in two different housings respectively, the piezoelectric pump provided by the embodiments of the present application omits the housing used by the traditional piezoelectric pump to separately wrap the circuit board, and shortens the connection path between the circuit board and the piezoelectric vibrator, thereby improving the space utilization rate of the piezoelectric pump structure and saving manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0016] Figure 1 A three-dimensional diagram of a piezoelectric pump provided by an embodiment of the present invention;

[0017] Figure 2 for Figure 1 An exploded view of the piezoelectric pump shown;

[0018] Figure 3 yes Figure 1 A schematic diagram of a first housing of a piezoelectric pump shown;

[0019] Figure 4 yes Figure 1 A cross-sectional schematic diagram of a piezoelectric pump shown;

[0020] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0023] In the description of this specification, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0025] See also Figure 1-4The piezoelectric pump 1000 includes a housing 1, a piezoelectric vibrator 2 and a circuit board 3. The housing 1 is provided with a receiving chamber a, an air inlet channel c and an air outlet channel d. The circuit board 3 is arranged in the receiving chamber a. The circuit board 3 is provided with a position avoidance hole 31. The position avoidance hole 31 is provided with an annular seal 13. Part of the inner wall of the housing 1 and the annular seal 13 are enclosed to form a receiving chamber b. The receiving chamber b is connected to the air inlet channel c and the air outlet channel d respectively. The piezoelectric vibrator 2 is arranged in the receiving chamber b and can vibrate in the receiving chamber b. The circuit board 3 is electrically connected to the piezoelectric vibrator 2, and the circuit board 3 is used to supply power to the piezoelectric vibrator 2 and provide a control signal. In the above manner, compared with the traditional piezoelectric pump in which the piezoelectric vibrator and the circuit board are separately arranged, the present application integrates the circuit board 3 and the piezoelectric vibrator 2 in the housing 1, eliminating the housing used by the traditional piezoelectric pump to separately wrap the circuit board 3, and shortening the connection path between the circuit board 3 and the piezoelectric vibrator 2, thereby improving the space utilization of the structure of the piezoelectric pump 1000 and saving the manufacturing cost.

[0026] For the above-mentioned shell 1, in this embodiment, the shell 1 includes a first shell 11 and a second shell 12, and the first shell 11 and the second shell 12 are connected to form a receiving chamber a, and a portion of the inner wall of the first shell 11 and a portion of the inner wall of the second shell 12 jointly clamp the two opposite ends of the annular seal 13, and a portion of the inner wall of the first shell 11, the annular seal 13 and a portion of the inner wall of the second shell 12 jointly enclose a receiving chamber b. Specifically, the first shell 11 includes a first substrate 111, a first side panel 112 and a first protruding portion 113. The first side panel 112 is arranged around the periphery of the first substrate 111, the first side panel 112 and the first substrate 111 are combined to form a first groove, and the first protruding portion 113 is arranged at the bottom of the first groove; the second shell 12 includes a second substrate 121, a second side panel 122 and a second protruding portion 123. The second side panel 122 is arranged around the periphery of the second substrate 121, the second side panel 122 and the second substrate 121 are combined to form a second groove, and the second protruding portion 123 is arranged at the bottom of the second groove. One end of the first side panel 112 facing away from the first substrate 111 is connected to the end of the second side panel 122 facing away from the second substrate 121. The first substrate 111, the first side panel 112, the second substrate 121 and the second side panel 122 together enclose a containing chamber a. The surface of the first protrusion 113 facing the second substrate 121 abuts against the end surface of one end of the annular seal 13, and the surface of the second protrusion 123 facing the first substrate 111 abuts against the end surface of the other end of the annular seal 13. The two ends of the annular seal 13 respectively abut against the surfaces of the first protrusion 113 and the second protrusion 123 to achieve a sealed connection with the first protrusion 113 and the second protrusion 123. The surface of the first protrusion 113 facing the second substrate 121, the inner side wall of the annular seal 13 and the surface of the second protrusion 123 facing the first substrate 111 together enclose a containing chamber b.

[0027] For further information, see Figure 2 , Figure 4 and Figure 5 In this embodiment, the annular seal 13 includes a first annular seal 131 and a second annular seal 132. The first annular seal 131 and the second annular seal 132 jointly clamp the piezoelectric vibrator 2, and the piezoelectric vibrator 2 divides the accommodating cavity b into a first piezoelectric cavity b1 and a second piezoelectric cavity b2. Specifically, the surface of the first protrusion 113 facing the second protrusion 123 abuts against the end surface of the first annular seal 131 facing away from the piezoelectric vibrator 2, the end surface of the first annular seal 131 facing the piezoelectric vibrator 2 abuts against the surface of the piezoelectric vibrator 2 facing the first protrusion 113, the surface of the second protrusion 123 facing the first protrusion 113 abuts against the end surface of the second annular seal 132 facing away from the piezoelectric vibrator 2, and the end surface of the second annular seal 132 facing the piezoelectric vibrator 2 abuts against the surface of the piezoelectric vibrator 2 facing the second protrusion 123. The surface of the first protrusion 113 facing the second substrate 121, the inner side wall of the first annular seal 131 and the surface of the piezoelectric vibrator 2 facing the first protrusion 113 together enclose a first piezoelectric cavity b1, and the surface of the second protrusion 123 facing the first substrate 111, the inner side wall of the second annular seal 132 and the surface of the piezoelectric vibrator 2 facing the second protrusion 123 together enclose a second piezoelectric cavity b2. The first annular seal 131 and the second annular seal 132 not only play a role in sealing connection, but also play a role in fixing the piezoelectric vibrator 2. The first annular seal 131 and the second annular seal 132 can be annular sealing rings, or they can be a sealing structure formed by applying a circle of glue along the annular area around the first protrusion 113 and / or the second protrusion 123.

[0028] It can be understood that the piezoelectric vibrator 2 is not limited to being configured to separate the accommodating chamber b into a first piezoelectric chamber b1 and a second piezoelectric chamber b2. For example, in some other embodiments, the annular seal 13 is a single component formed in one piece, and the piezoelectric vibrator 2 is fixed to the surface of the first shell 11 facing the accommodating chamber b or the surface of the second shell 12 facing the accommodating chamber b, that is, only one piezoelectric chamber is formed in the accommodating chamber b.

[0029] In order to facilitate the disassembly and assembly of the components of the piezoelectric pump 1000, further, in some embodiments, the first housing 11 can be detachably fixed to the second housing 12. Specifically, in this embodiment, the first housing is screwed and fixed to the second housing. More specifically, the piezoelectric pump 1000 also includes a locking bolt, and the locking bolt screws the first housing 11 to the second housing 12 in the direction from the first housing 11 to the second housing 12. It can be understood that in some other embodiments, the first housing 11 and the second housing 12 can also be detachably connected by means of snap connection, magnetic attraction, etc.

[0030] For the above-mentioned piezoelectric vibrator 2, please refer to Figure 5 In this embodiment, specifically, the piezoelectric vibrator 2 includes a flexible circuit board 21 and piezoelectric ceramics 22 and a metal sheet 23 respectively arranged on both sides of the flexible circuit board 21 , and the first annular seal 131 and the second annular seal 132 jointly clamp the periphery of the flexible circuit board 21 .

[0031] In this embodiment, the piezoelectric vibrator 2 further includes a wiring portion (not shown), which is extended from the periphery of the piezoelectric vibrator 2 and is used to be electrically connected to the circuit board 3. Specifically, the wiring portion is extended from the abutment portion 213 of the flexible circuit board 21, and one end of the wiring portion away from the abutment portion 213 is welded to the circuit board 3. It can be understood that the wiring portion is not limited to being electrically connected to the circuit board 3 by welding. In some other embodiments, the wiring portion can also be electrically connected to the circuit board 3 by providing a plug in a plug-in manner.

[0032] For board 3 above, see Figure 2-5 In some embodiments, the circuit board 3 is sleeved on the annular seal 13 through the avoidance hole 31. A first limiting protrusion (not shown) and a second limiting protrusion (not shown) are respectively provided on the side of the first substrate 111 facing the second substrate 121 and the side of the second substrate 121 facing the first substrate 111. The first limiting protrusion and the second limiting protrusion are respectively in contact with the two side surfaces of the circuit board 3 to limit and fix the circuit board 3.

[0033] It should be understood that the present application does not specifically limit the fixing method of the circuit board 3. For example, in other embodiments of the present application, the circuit board 3 can also be fixed to the housing 1 by means of snap-on, bolt connection, bonding, etc., which are not listed in detail here.

[0034] See also Figure 4 and Figure 5 In this embodiment, the first annular seal 131 is accommodated in the avoidance hole 31, and the abutting portion 213 and the second annular seal 132 protrude from the avoidance hole 31 along the direction from the first shell 11 to the second shell 12, and the end of the wiring portion away from the abutting portion 213 is welded to the surface of the circuit board 3 facing the second shell 12. It can be understood that in some other embodiments, the circuit board 3 can also be configured as follows: the second annular seal 132 is accommodated in the avoidance hole 31, and the abutting portion 213 and the first annular seal 132 protrude from the avoidance hole 31 along the direction from the second shell 12 to the first shell 11, and the end of the wiring portion away from the abutting portion 213 is welded to the surface of the circuit board 3 facing the first shell 11; or the abutting portion 213 is accommodated in the avoidance hole 31, and the wiring portion is connected to the circuit board 3 in the avoidance hole 31, or the wiring portion extends from the avoidance hole 3 to the outside of the avoidance hole 3 and then connects to the circuit board 3.

[0035] See also Figure 2 , Figure 4 and Figure 5 In some embodiments, the number of the avoidance hole 31, the annular seal 13, the accommodating chamber b and the piezoelectric vibrator 2 is at least two and corresponds one to one. One piezoelectric vibrator 2 is arranged in one accommodating chamber b. The first shell 11 is provided with a first series channel e. Each first piezoelectric chamber b1 is connected in series through the first series channel e. The second shell 12 is provided with a second series channel f. Each second piezoelectric chamber b2 is connected in series through the second series channel f. The air intake channel c includes a first air intake channel c1 and a second air intake channel c2. The first air intake channel c1 and the second air intake channel c2 are respectively connected to the first piezoelectric chamber b1 and the second piezoelectric chamber b2 of the accommodating chamber b at the beginning. The exhaust channel d includes a first exhaust channel d1 and a second exhaust channel d2. The first exhaust channel d1 and the second exhaust channel d2 are respectively connected to the first piezoelectric chamber b1 and the second piezoelectric chamber b2 of the accommodating chamber b at the end. Specifically, taking the case where the number of the accommodating chamber b and the number of the piezoelectric vibrator 2 are both two, the number of the first annular seal 131, the second annular seal 132, the first protrusion 113, the second protrusion 123 and the avoidance hole 31 are all two, a first annular seal 131, a second annular seal 132, a first protrusion 113 and a second protrusion 123 together enclose a accommodating chamber b, a piezoelectric vibrator 2 is arranged in a accommodating chamber b and separates the accommodating chamber b into a first piezoelectric chamber b1 and a second piezoelectric chamber b2. The two accommodating chambers b are arranged side by side, one end of the first series channel e is connected to a first piezoelectric chamber b1, the other end of the first series channel e is connected to another first piezoelectric chamber b1, one end of the second series channel f is connected to a second piezoelectric chamber b2, and the other end of the second series channel f is connected to another second piezoelectric chamber b2.

[0036] The piezoelectric pump 1000 of the present application integrates the circuit board 3 into the accommodating chamber a of the shell 1, and sets an avoidance hole 31 on the circuit board 3 to avoid the accommodating chamber b. Compared with the traditional piezoelectric pump 1000 in which the piezoelectric vibrator 2 and the circuit board 3 are respectively set in two different shells 1, the shell 1 used by the traditional piezoelectric pump to separately wrap the circuit board 3 is omitted, and the connection path between the circuit board 3 and the piezoelectric vibrator 2 is shortened, thereby improving the space utilization of the piezoelectric pump 1000 and saving manufacturing costs.

[0037] The embodiments of the present application also provide a pneumatic massage system, including the piezoelectric pump 1000 in any of the above embodiments. For the structure and function of the piezoelectric pump 1000, please refer to the above embodiments, which will not be described in detail here.

[0038] An embodiment of the present application also provides a pneumatic massage device, including the pneumatic massage system of any of the above embodiments, wherein the pneumatic massage device can be a massage chair, a massager, etc.

[0039] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A piezoelectric pump for a pneumatic massage system, characterized in that: It includes a shell, a accommodating chamber, an air inlet channel and an exhaust channel are arranged inside the shell, a circuit board is arranged in the accommodating chamber, a avoidance hole is opened on the circuit board, an annular seal is arranged in the avoidance hole, part of the inner wall of the shell and the annular seal are combined to form an accommodating chamber, a piezoelectric vibrator is arranged in the accommodating chamber, the accommodating chamber is communicated with the air inlet channel and the exhaust channel respectively, and the circuit board is electrically connected to the piezoelectric vibrator.

2. The piezoelectric pump for a pneumatic massage system according to claim 1, characterized in that: The shell includes a first shell and a second shell, the first shell and the second shell are connected to form the accommodating chamber, the partial inner wall of the first shell and the partial inner wall of the second shell respectively clamp the opposite ends of the annular seal, and the partial inner wall of the first shell, the annular seal and the partial inner wall of the second shell together enclose the accommodating cavity.

3. The piezoelectric pump for a pneumatic massage system according to claim 2, characterized in that: The annular seal comprises a first annular seal and a second annular seal, the first annular seal and the second annular seal jointly clamp the piezoelectric vibrator, and the piezoelectric vibrator divides the accommodating cavity into a first piezoelectric cavity and a second piezoelectric cavity.

4. The piezoelectric pump for a pneumatic massage system according to claim 3, characterized in that: The first annular seal and the second annular seal jointly clamp the periphery of the piezoelectric vibrator. A wiring portion extends from the periphery of the piezoelectric vibrator, and the wiring portion is electrically connected to the circuit board.

5. The piezoelectric pump for a pneumatic massage system according to claim 4, characterized in that: The piezoelectric vibrator includes a flexible circuit board and piezoelectric ceramics and metal sheets respectively arranged on both sides of the flexible circuit board. The first annular seal and the second annular seal jointly clamp the periphery of the flexible circuit board, and the periphery of the flexible circuit board extends to form the wiring portion.

6. The piezoelectric pump for a pneumatic massage system according to claim 5, characterized in that: The connection portion is welded to the circuit board.

7. The piezoelectric pump for a pneumatic massage system according to any one of claims 3 to 6, characterized in that: The number of the avoidance holes, the annular seals, the accommodating chambers and the piezoelectric vibrators are at least two and correspond one to one. One piezoelectric vibrator is arranged in one of the accommodating chambers. A first series channel is arranged in the first shell, and each of the first piezoelectric chambers is connected in series through the first series channel. The second shell is provided with a second series channel, and each of the second piezoelectric chambers is connected in series through the second series channel.

8. The piezoelectric pump for a pneumatic massage system according to any one of claims 2 to 6, characterized in that: The first shell is detachably fixed to the second shell.

9. The piezoelectric pump for a pneumatic massage system according to claim 8, characterized in that: The first shell is screwed and fixed to the second shell.

10. A pneumatic massage system, characterized in that: Comprising a piezoelectric pump as described in any one of claims 1-9.

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