JP4462447B2 - Liquid cartridge, liquid pump and liquid flow device - Google Patents

Description

  The present invention relates to a liquid cartridge and a liquid pump for storing liquid.

  There are various liquid cartridges as containers for storing liquid. Among these containers, examples of a small size include a fountain pen ink cartridge and an ink cartridge installed in an ink jet printer. The liquid cartridge can be stored so that liquid does not leak. As a result, the liquid cartridge is usually easily handled such as transporting and supplying the liquid.

  The liquid stored in the liquid cartridge is not limited to a simple liquid, and various types of dispersions are also targeted. A representative example of these is ink. In such a liquid, the components may settle and separate when the storage period becomes long. In order to solve this problem, for example, a method of mixing various dispersants with a liquid has been studied. Further, as a method of redispersing the liquid, a method of shaking the liquid cartridge or a method of stirring the liquid in the liquid cartridge can be considered. Among these methods, the method of stirring the liquid in the liquid cartridge is very promising because the space space required for this can be made smaller than the method of shaking the liquid cartridge. Further, when the liquid is delivered from the cartridge, it may be necessary to appropriately adjust the amount of the liquid or to perform pumping in order to send the liquid far away.

On the other hand, as a device for flowing a liquid, there are a ship screw and various pumps. Fish fins and the like can also be regarded as devices for flowing liquid. It can be said that the shape and operation of this type of mechanism are selected so that the liquid can flow efficiently. The structure and principle of fish fins may be applied to pumps by applying this. For example, Japanese Patent Laid-Open No. 5-272497 discloses a pump that causes a liquid to flow by reciprocatingly driving a fin (fin) around a rotation axis within a predetermined angular range. There is a description that the pump of the publication is composed of small and few components. And in order to make the liquid in a container flow, combining the mechanism of a pump like the gazette is considered.
JP-A-5-272497

  However, in order to cause the liquid in the liquid cartridge to flow or to be sent to the outside, the combination of the pumps as described above still requires a large mechanism and operation and is not suitable for miniaturization. In the case of a pump driven by a mechanism having a rotating shaft, a bearing for receiving the rotating shaft, a sealing for sealing a fluid, and the like are required. Such sealing is also an obstacle to downsizing. Further, the screw mechanism has a drawback that if the rotational speed is increased in order to increase the flow rate of the liquid, the efficiency becomes very poor.

  One of the objects of the present invention is to provide a liquid cartridge having a novel mechanism for flowing a liquid and capable of stirring the liquid inside or allowing the liquid to flow.

  One of the objects according to the present invention is to provide a small liquid pump capable of flowing a liquid in a pipe.

The liquid cartridge according to the present invention is
A container for storing liquid;
A plate-like vibrating body immersed in the liquid and flowing the liquid;
A drive unit for vibrating the vibrating body in a thickness direction;
Have
At least a part of the end portion in the in-plane direction of the vibrating body is continuously thinner toward the end.

  Such a liquid cartridge is capable of stirring the liquid inside or flowing the liquid.

In the liquid cartridge of the present invention,
Furthermore, it can have a flow path part communicating with the container part,
The channel portion can circulate the liquid therein.

In the liquid cartridge of the present invention,
The drive unit can bend and vibrate the vibrating body.

In the liquid cartridge of the present invention,
The drive unit can be vibrated by moving the position of the entire vibrator.

In the liquid cartridge of the present invention,
At least the thinned area of the vibrator is immersed in the liquid,
The liquid can flow with a velocity component in a direction perpendicular to the thickness direction of the vibrating body and in a direction in which the vibrating body becomes thinner.

In the liquid cartridge of the present invention,
The driving unit may include a piezoelectric element.

In the liquid cartridge of the present invention,
The frequency at which the vibrating body vibrates may be a resonance frequency of the vibrating body or an entire resonance frequency including the vibrating body and the driving unit.

The liquid pump according to the present invention is
A pipe section through which liquid passes;
A plate-like vibrating body that is immersed in the liquid and causes the liquid to flow in the tube portion;
A drive unit for vibrating the vibrating body in a thickness direction;
Have
At least a part of the end portion in the in-plane direction of the vibrating body is continuously thinner toward the end.

  Such a liquid pump can be miniaturized and can flow the liquid in the pipe.

  Preferred embodiments of the present invention will be described below with reference to the drawings. In addition, the following embodiment demonstrates an example of this invention.

1. 1. First embodiment 1.1. Liquid Cartridge A liquid cartridge 1000 according to the present embodiment will be described with reference to the drawings. FIG. 1 is a cross-sectional view schematically showing the liquid cartridge 1000. 2 and 3 are perspective views schematically showing the vibrating body 200 and the drive unit 300 of the liquid cartridge 1000. FIG. FIG. 4 is a plan view schematically showing the vibrating body 200 and the drive unit 300 of the liquid cartridge 1000. FIG. 5 is a cross-sectional view schematically showing the vibrating body 200 and the drive unit 300 of the liquid cartridge 1000. A cross section taken along line AA in FIG. 4 corresponds to FIG. FIG. 6 is a cross-sectional view schematically showing the deformation of the base material 310 and the operation of the vibrating body 200 when the base material 310 of the drive unit 300 is driven. 7 and 8 are perspective views illustrating an example of the vibrating body 200. FIG.

  The liquid cartridge 1000 according to the present embodiment includes a container unit 100, a vibrating body 200, and a driving unit 300. The container part 100 can store the liquid 110. The container unit 100 can be attached with the driving unit 300. The shape of the container 100 is not limited to a shape having a rectangular cross section as in the illustrated example as long as the liquid 110 can be stored therein. The container part 100 may have an inlet for injecting the liquid 110 and an outlet for discharging the liquid 110. The container unit 100 stores the liquid 110 and enables storage, transportation, and the like of the liquid 110. The material of the container part 100 is not limited. The container portion 100 can be made of resin, metal, or the like in consideration of preventing other members or the liquid 110 from deteriorating.

  The liquid 110 is stored in the container unit 100. In addition to the inside of the container part 100, the liquid 110 may exist in that part when there is a flow path or the like communicating with the container part 100. The liquid 110 may be any substance that flows. The liquid 110 can be, for example, an ink, an emulsion, an organic solvent, an organic solution, an organic-inorganic mixed solution, an aqueous solution, or the like. The liquid 110 may be a dispersion in which a liquid phase and a solid phase, and a liquid phase and a liquid phase are separated.

  The vibrating body 200 is immersed in the liquid 110 stored in the container unit 100. The vibrating body 200 can cause the liquid 110 to flow (this mechanism will be described later). In this example, the vibrating body 200 is provided in the lower part of the container part 100, but may be provided in any part of the container part 100 as long as it can be immersed in the liquid 110.

  As shown in FIGS. 4 and 5, the drive unit 300 includes piezoelectric layers 320 a and 320 b on a base material 310, and further includes electrodes 330 a and 330 b thereon. As shown in the drawing, in the driving unit 300, two piezoelectric elements 340a and 340b are formed on a base material 310.

  The base material 310 is a base body of the drive unit 300, and is a member for taking out the mechanical output of the drive unit 300 to the outside. The shape of the base material 310 is a disk shape in the illustrated example, and the peripheral portion protrudes outward from the piezoelectric layers 320 a and 320 b so that it can be connected to the container portion 100. In this example, the base material 310 also serves as a part of the inner wall of the container part 100. The substrate 310 can be deformed by the piezoelectric layers 320a and 320b. Although the piezoelectric layers 320a and 320b are illustrated as separate bodies, it is more preferable to form them integrally. The base material 310 can move other members such as the connected vibrator 200 by being deformed. As shown in FIG. 6, the base material 310 of the present embodiment can be bent and deformed out of the plane. In the present embodiment, a connection jig 312 is provided at the center of the base material 310, and the vibrating body 200 is provided via the connection jig 312. Therefore, when the base material 310 is deformed, the vibrating body 200 can move its position. The material of the base material 310 is arbitrary, but in the illustrated example, a conductive material is used. Therefore, the base material 310 is one electrode of a pair of electrodes for applying an electric field to the piezoelectric layers 320a and 320b. In the illustrated example, the substrate 310 is configured as a common electrode for the piezoelectric layers 320a and 320b thereon. In the case where the substrate 310 is made of a material having no conductivity, a conductive layer or the like may be provided on the substrate 310 in order to apply an electric field to the piezoelectric layers 320a and 320b.

The piezoelectric layers 320 a and 320 b are provided on the base material 310. The piezoelectric layers 320a and 320b expand and contract in the in-plane direction of the substrate 310 when an electric field is applied thereto. As the piezoelectric layers 320a and 320b expand and contract, the base material 310 is deformed as shown in FIG. Due to this deformation, the vibrating body 200 can vibrate in the thickness direction. The expansion and contraction of the piezoelectric layers 320a and 320b can be arbitrarily designed depending on the polarity of the applied voltage and the direction in which the piezoelectric layers 320a and 320b are polarized. 4 and 5, the polarization direction of the piezoelectric layers 320a and 320b and the direction of the electric field applied to the electrodes 330a and 330b are in the direction in which the piezoelectric elements 340a and 340b are arranged (the direction along the line AA). It is configured to extend and contract. Piezoelectric layers 320a, 320b, for example lead zirconate titanate _{(Pb (Zr, Ti) O} 3), formed of a piezoelectric material such as lead zirconate titanate niobate (Pb (Zr, Ti, Nb ) O 3) Can be done.

  The electrodes 330a and 330b are provided to face the substrate 310 with the piezoelectric layers 320a and 320b interposed therebetween. The electrodes 330a and 330b are one of a pair of electrodes for applying an electric field to the piezoelectric layers 320a and 320b. The electrodes 330a and 330b supply power for expanding and contracting the base material 310. The electrodes 330a and 330b are formed of a conductive material.

  As shown in FIGS. 1 to 5, the vibrating body 200 is provided on the base material 310 of the driving unit 300 via a connection jig 312. The vibrating body 200 is provided such that the direction in which the vibrating body 200 moves due to the deformation of the drive unit 300 is the thickness direction of the vibrating body 200. The vibrating body 200 can move continuously in the thickness direction. Such a continuous operation is vibration, and the direction of vibration is a direction having a component in the thickness direction of the vibrating body 200 (a direction along a vibration direction B indicated by a double arrow in the drawing). The vibrating body 200 only needs to be provided in a direction having an operation component in the thickness direction when the driving unit 300 operates. As long as the operation of the driving unit 300 can be transmitted to the vibration body 200, the vibration body 200 and the base material 310 may not be joined via another member such as the connection jig 312.

  Next, the shape of the vibrating body 200 will be described. The vibrating body 200 has a plate shape. As shown in FIG. 7, in the vibrating body 200, at least a part (end portion 240) of the end portion 220 in the in-plane direction is continuously thinner toward the end E1. The vibrating body 200 only needs to be immersed in the liquid 110 at least a portion (end portion 240) that is continuously thinned toward the end E1. The vibrating body 200 has an inclined surface T1 inclined at an angle φ and an inclined surface T2 inclined at an angle ψ with respect to a surface perpendicular to the thickness direction X (the surface indicated by the shadows in FIG. 7).

  In the present embodiment, the thickness direction of the plate-like object refers to the direction along the shortest side of the rectangular parallelepiped that contains the plate-like object and has the smallest volume. However, in the case where there is no slope inclined with respect to the plane perpendicular to the direction along the shortest side of the rectangular parallelepiped, the thickness direction is the direction along the second shortest side of the rectangular parallelepiped. For example, when the shape of the vibrating body 200 is as shown in FIG. 8, the thickness direction is, in principle, the second direction of FIG. 8, but a plane perpendicular to the second direction (FIG. 8 does not have an inclined slope. Therefore, in such a case, as an exception, the thickness direction of the vibrating body 20 is the first direction in FIG.

  Next, the operation of the vibrating body 200 will be described in detail. FIG. 9A, FIG. 9B, and FIG. 9C are cross-sectional views schematically showing the action of the vibrating body 200. FIG. FIG. 9 shows a state in which the inclined surface T1 and the inclined surface T2 of the vibrating body 200 move while being immersed in a liquid. FIGS. 9A and 9B show a state in which the vibrating body 200 moves in the direction indicated by the solid line arrow. FIG. 9C shows a state in which the vibrating body 200 is reciprocally vibrated in the directions of arrows in both directions of the solid line. The broken-line arrows in FIGS. 9A to 9C schematically show how the liquid flows.

  As shown in FIG. 9A, when the vibrating body 200 moves in the direction of the arrow, the liquid present on the inclined surface T2 is pushed by the inclined surface T2 and generates a flow along the inclined surface T2 (the broken line on the left side). See arrow). On the other hand, at this time, the liquid existing on the slope T1 side is pulled by the slope T1, and a flow along the slope T1 is generated. However, since the liquid on the slope T1 side is pulled by the slope T1, the turbulence of the flow is large when the movement speed of the slope is large, and the liquid flow speed is smaller than the liquid flow speed on the slope T2 side ( (See dashed arrow on the right). Therefore, the liquid flow generated around the vibrating body 200 is the sum of the liquid flows existing on the slope T2 side and the slope T1 side, and the liquid flow is generated in the direction in which the vibrating body 200 becomes thinner. Similarly, as shown in FIG. 9B, when the vibrating body 200 moves in the direction opposite to that in FIG. 9A, the liquid around the vibrating body 200 flows in the direction in which the vibrating body 200 becomes thinner. Occurs.

  In FIG.9 (c), the vibrating body 200 reciprocates in the direction of the arrow of the solid line in both directions. Therefore, the liquid flow generated around the vibrating body 200 is the sum of the liquid flows represented by a total of four dashed arrows shown in FIGS. 9A and 9B. Therefore, when the vibrating body 200 vibrates in the thickness direction, the liquid around the vibrating body 200 flows in the direction in which the vibrating body 200 becomes thinner (the direction of the arrow d in the figure).

  The shape of the vibrating body 200 that can vibrate the liquid 200 as shown in FIG. 9C when the vibrating body 200 is vibrated in the thickness direction is as follows. (1) In the vibrating body 200, at least a part of the end portion 22 in the in-plane direction becomes thinner toward the end. (2) The vibrating body 200 has at least one slope inclined with respect to a plane perpendicular to the vibration direction. The inclined surface is not limited to a flat surface but may be a curved surface.

  The entirety of the vibrating body 200 and the driving unit 300 or the vibrating body 200 has a resonance frequency. When the vibration described above is in the vicinity of the resonance frequency, energy loss is reduced, and the flow of the liquid 110 can be generated more efficiently. Moreover, the frequency which vibrates the vibrating body 200 can be set freely. The frequency of the vibration can be optimized in consideration of the shape and size of the vibrating body 200 and the liquid cartridge 100 and the properties of the liquid. For example, the frequency of vibration when vibrating the vibrating body 200 can be 20 kHz to 1 MHz. The vibrating body 200 can change the flow characteristics of the liquid by appropriately adjusting the frequency and amplitude of vibration and the size and angle of the slope depending on the type of liquid.

  As described above, the state in which the vibrating body 200 is vibrated by the driving unit 300 and the liquid 110 flows is indicated by the broken-line arrows in FIG. A liquid flow is generated in the direction in which the end portion 220 of the vibrating body 200 becomes thinner (the right direction of the vibrating body 200 in FIG. 1). Thereby, the liquid 110 inside the container part 100 can be stirred or flowed. Thus, since the liquid cartridge 1000 does not have a mechanism having a rotating shaft such as a screw, the liquid 110 stored in the container unit 100 is stirred with a mechanism that occupies a very small space for stirring. It can be made to flow.

1.2. Liquid Cartridge Manufacturing Method The liquid cartridge 1000 of the present embodiment can be manufactured as follows, for example. The liquid cartridge 1000 can be manufactured by manufacturing the container unit 100, the driving unit 300, and the vibrating body 200, and joining them.

  The manufacturing method of the driving unit 300 may include a step of forming the piezoelectric layers 320a and 320b on the base material 310 and a step of forming the electrodes 330a and 330b on the piezoelectric layers 320a and 320b. The step of forming the piezoelectric layers 320a and 320b on the substrate 310 can be performed by, for example, a sol-gel method or CVD (Chemical Vapor Deposition). The step of forming the electrodes 330a and 330b can be performed by a sputtering method, a vapor deposition method, or the like. The polarization treatment of the piezoelectric layers 320a and 320b can be performed by applying an electric field to the base 310 and the electrodes 330a and 330b.

  The vibrating body 200 can be manufactured, for example, by processing a metal plate. The drive unit 300 manufactured as described above and the vibrating body 200 can be joined by, for example, welding, bonding, or fixing with a jig such as a screw.

  The container part 100 can be manufactured, for example, by injection molding a resin such as polyethylene. Then, the liquid cartridge 1000 can be manufactured by assembling the driving unit 300 and the vibrating body 200 in the container unit 100.

1.3. Modified Examples The liquid cartridge of the present embodiment can be variously modified as described below.

  FIG. 10 is a cross-sectional view schematically showing a liquid cartridge 2000 according to a modification. FIG. 11 is a cross-sectional view schematically showing the vibrating body 200 and the drive unit 300 of the liquid cartridge 2000. FIG. 12 is a plan view schematically showing the vibrating body 200 and the drive unit 300 of the liquid cartridge 2000. A cross section taken along line AA in FIG. 12 corresponds to FIG.

  The liquid cartridge 2000 is the same as the liquid cartridge 1000 except that the configuration and operation of the drive unit 300 are different from those of the liquid cartridge 1000. In the drive unit 300 of the liquid cartridge 2000, as shown in FIGS. 11 and 12, the base member 310 can be expanded and contracted in the longitudinal direction, and the vibrating body 200 is vibrated in the thickness direction. As shown in FIGS. 11 and 12, the drive unit 300 according to this modification includes a plate-like base material 310 and piezoelectric elements 340 c and 340 d. The base material 310 is an electrode common to the piezoelectric elements 340c and 340d. The base material 310 has an integrally formed fixing portion 316 and is fixed to the container portion 100 by a fixing member 350 using the fixing portion 316. As shown in FIG. 11, piezoelectric elements 340 c and 340 d are respectively provided above and below the plate-like base material 310. Each piezoelectric element is configured similarly to the liquid cartridge 1000. Each piezoelectric element provided on the base material 310 is driven so that the base material 310 expands and contracts in the longitudinal direction (the direction of the line AA in FIG. 12). When the base material 310 expands and contracts in the longitudinal direction, the vibrating body 200 can move in the thickness direction and vibrate (the moving direction of the vibrating body 200 is indicated by an arrow B in the figure). In the present modification, a part of the vibration unit 200, the connection jig 312, and the base material 310 is immersed in the liquid 110. And the base material 310 has penetrated the wall of the container part 100 by the sealing 102 as shown in FIG. The sealing 102 has a function of preventing the liquid 110 from leaking and preventing the operation of the base material 310 from being disturbed. The sealing 102 is made of a resin material such as rubber, for example. The sealing 102 has a very simple structure, unlike the one that seals the rotating shaft and the like. As described above, the vibrating body 200 is also vibrated in the thickness direction by the liquid cartridge 2000 in which the driving unit 300 is deformed in this manner, and the liquid 110 in the container unit 100 is stirred as indicated by the broken arrow in the drawing. Or it can be flowed.

  FIG. 13 is a cross-sectional view schematically showing a liquid cartridge 3000 according to another modification. FIG. 14 is a cross-sectional view schematically showing the vibrating body 200 and the drive unit 300 of the liquid cartridge 3000. FIG. 15 is a plan view schematically showing the vibrating body 200 and the drive unit 300 of the liquid cartridge 3000. A cross section taken along line AA in FIG. 15 corresponds to FIG.

  The liquid cartridge 3000 is the same as the liquid cartridge 2000 except that the operation of the vibration unit 200 is different from that of the above-described liquid cartridge 2000 and that the channel unit 400 is provided in the container unit 100. As shown in FIG. 14, in the vibrating body 200 of the liquid cartridge 3000, the longitudinal direction of the base material 310 and the direction in which the vibrating body 200 becomes thinner coincide with each other. As in the case of the liquid cartridge 2000, the drive unit 300 of this modification example performs expansion and contraction vibration in the longitudinal direction of the base material 310. As shown in FIG. 14, the vibrating body 200 of the present modification is provided so that the center of gravity G <b> 1 deviates from the vibration line 314 of the base material 310. Since the vibrating body 200 generates a moment of rotation when driven by the drive unit 300, the vibrating body 200 can vibrate with an operation component in the thickness direction. Therefore, when the vibration body 200 is vibrated by the driving unit 300, the vibration body 200 can vibrate in the thickness direction (the vibration direction is indicated by an arrow B in FIGS. 13 and 14). The vibrating body 200 is also immersed in the liquid 110 in this modified example, and can cause the liquid 110 to flow as shown by a broken line arrow a in FIG.

  As shown in FIG. 13, the liquid cartridge 3000 can have a flow path section 400. The channel part 400 can be formed integrally with the container part 100. The channel part 400 can take out the liquid 110 stored in the container part 100 to the outside, and can introduce the liquid 110 into the container part 100 through the channel part 400. In the liquid cartridge 3000 of this modification, the flow path section 400 is tubular and has the liquid 110 therein. In the liquid cartridge 3000 of this modification, the vibrating body 200 is immersed in the liquid 110 in the flow path section 400. When the vibration part 200 vibrates in the flow path part 400, the flow of the liquid 110 can be generated in the direction of the broken line arrow a, and the flow of the liquid 110 can be generated as shown by the broken line arrow b. By providing such a flow path part 400, for example, it is possible to more easily take out the highly viscous liquid 110 from the container part 100.

2. Second Embodiment 2.1. Liquid Pump A liquid pump 4000 according to this embodiment will be described with reference to the drawings. FIG. 16 is a cross-sectional view schematically showing the liquid pump 4000 and an example of its use.

  The liquid pump 4000 includes a pipe part 500 through which the liquid 110 passes, a vibrating body 200, and a driving part 300. Since the vibrating body 200 and the driving unit 300 are substantially the same as the liquid cartridge described above, detailed description thereof is omitted. The liquid pump 4000 is a pump that utilizes the fact that the vibration body 200 can generate a flow in the liquid 110 by vibrating in the thickness direction.

  The pipe part 500 is cylindrical and has a shape that allows the liquid 110 to pass therethrough. The wall material 502 of the pipe part 500 is comprised with a metal, resin, etc., for example. The vibrating body 200 is provided inside the tube unit 500. The vibrating body 200 is disposed so that the direction in which the vibrating body 200 becomes thinner coincides with the longitudinal direction of the tube portion 500 (the direction in which the liquid 110 can flow inside the tube portion 500). An opening 504 is provided in a part of the wall material 502. A member (base material 310) for arranging and vibrating the vibrating body 200 passes through the opening 502. The opening 502 is provided with a sealing 506 similar to that described in the first embodiment. The base material 310 of the drive unit 300 can vibrate the vibrating body 200 in the thickness direction, as described in the first embodiment. The vibrating body 200 immersed in the liquid 110 vibrates in the tube portion 500, so that the liquid 110 can flow inside the tube portion 500. The driving unit 300 is fixed to the wall member 502 by a fixing member 350. The liquid pump 4000 is configured as described above. The liquid pump 4000 can be manufactured by manufacturing the pipe unit 500, the drive unit 300, and the vibrating body 200, respectively, and joining them in the same manner as the liquid cartridge manufacturing method described in the first embodiment. .

  As described above, the liquid pump 4000 can flow the liquid 110 by the mechanism that vibrates the vibrating body 200 in the thickness direction, and thus can be configured to be very simple and small. In addition, since the liquid pump 4000 can flow the liquid 110 inside the pipe portion 500, it can be used as a pump for flowing the liquid 110 and can be used as described below.

  As shown in FIG. 16, the heat exchanger 600 can be coupled to the liquid pump 4000 using a pipe or the like. Thereby, the liquid 110 can be circulated by the liquid pump 4000. If it does in this way, it can be used as a circulation type heat exchange mechanism, for example. In this case, a plurality of heat exchangers 600 may be provided.

  The configuration shown in FIG. 16 can also occupy a very small space. Therefore, such a liquid pump 4000 can be used as a heat dissipation mechanism in an electronic device, for example. In this case, a substance having a heat medium function can be selected as the liquid 110, and various chillers can be selected as the heat exchanger 600. For example, it can be suitably used for cooling a chip such as a CPU of an electronic computer and a heat source such as a lamp of a projector.

  As described above, the embodiments of the present invention have been described. However, it will be easily understood by those skilled in the art that many modifications can be made without departing from the novel matters and effects of the present invention. Accordingly, all such modifications are intended to be included in the scope of the present invention.

FIG. 3 is a cross-sectional view schematically showing a liquid cartridge 1000 according to the embodiment. The perspective view which shows typically the drive part 300 and the vibrating body 200 of embodiment. The perspective view which shows typically the drive part 300 and the vibrating body 200 of embodiment. FIG. 3 is a plan view schematically showing the drive unit 300 and the vibrating body 200 according to the embodiment. FIG. 3 is a plan view schematically showing the drive unit 300 and the vibrating body 200 according to the embodiment. Schematic which shows typically operation | movement of the base material 310 and the vibrating body 200 of embodiment. The perspective view which shows typically the vibrating body 200 concerning embodiment. The perspective view which shows typically the vibrating body 200 concerning embodiment. Schematic which shows typically the effect | action of the vibrating body 200 concerning embodiment. Sectional drawing which shows typically the liquid cartridge 2000 concerning a modification. Sectional drawing which shows typically the drive part 300 and the vibrating body 200 of a modification. The top view which shows typically the drive part 300 and the vibrating body 200 of a modification. Sectional drawing which shows typically the liquid cartridge 3000 concerning a modification. Sectional drawing which shows typically the drive part 300 and the vibrating body 200 of a modification. The top view which shows typically the drive part 300 and the vibrating body 200 of a modification. Sectional drawing which shows typically the liquid pump 4000 concerning embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Container part, 102 Sealing, 110 Liquid, 200 Vibrating body, 220,240 End part, 300 Drive part, 310 Base material, 312 Connection jig, 314 line, 316 Fixing part, 320a-320f Piezoelectric layer, 330a-330f Electrode, 340a to 340f Piezoelectric element, 350 Fixing jig, 400 Channel portion, 500 Tube portion, 502 Wall material, 504 Opening portion, 506 Sealing, 600 Heat exchanger, 1000 to 3000 Liquid cartridge, 4000 Liquid pump, T1, T2 slope, E1 end, B vibration direction, X thickness direction, G1 center of gravity

Claims (7)

A container for storing liquid;
A plate having a first main surface and a second main surface that are in a front-back relationship, the first main surface being in contact with the liquid and the second main surface not being in contact with the liquid. A drive unit including a base material and a piezoelectric element that bends and vibrates the base material;
A plate-like vibrating body connected to the first main surface and allowing the liquid to flow;
Have
The vibrator is vibrated in the thickness direction,
The liquid cartridge is such that the thickness of the vibrating body decreases as the distance from the base material increases . In claim 1,
The piezoelectric element is a liquid cartridge provided on the second main surface . In claim 1 or claim 2,
The vibrator is immersed in the liquid,
A liquid cartridge in which the liquid flows with a velocity component along a direction in which the thickness of the vibrating body decreases . In any one of Claims 1 to 3,
The container part has a flow path part,
A liquid cartridge in which the liquid flows in the flow path . In any one of Claims 1 thru | or 4 ,
The liquid cartridge is configured such that the frequency at which the vibrating body vibrates is a resonance frequency of the vibrating body or an entire resonance frequency including the vibrating body and the driving unit. A pipe section through which liquid passes;
A drive unit including a plate-like base material penetrating the wall of the tube part, and a piezoelectric element for stretching and vibrating the base material;
A plate-like vibrating body connected to the base material for flowing the liquid;
Have
At least a portion of the substrate and the vibrator are immersed in the liquid;
The vibrator is vibrated in the thickness direction,
The thickness of the vibrating body is a liquid pump that decreases as the distance from the base material increases . A container portion for containing a liquid;
A drive unit including a plate-like base material penetrating the wall of the container part, and a piezoelectric element for stretching and vibrating the base material;
  A plate-like vibrating body connected to the base material for flowing the liquid;
Have
  At least a portion of the substrate and the vibrator are immersed in the liquid;
  The vibrator is vibrated in the thickness direction,
  The thickness of the said vibrating body is a liquid flow apparatus which is so small that it distances from the said base material.

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