JP2020159226A - Diaphragm compressor, cooling unit, projector, recording device and three-dimensional structure manufacturing device - Google Patents

Abstract

To provide a small-sized diaphragm compressor capable of effectively compressing fluid.SOLUTION: A diaphragm compressor 1 comprises structures 10A and 10B including a pressing part 22, a diaphragm 11, and substrates 13 and 30 partially separated and partially joined with respect to the diaphragm 11, wherein the pressing part 22 is arranged on the side of the diaphragm 11 opposite to the substrates 13 and 30, a separation portion between the diaphragm 11 and the substrates 13 and 30 is a part of a flow passage through which fluid flows, and the respective flow passages of the two or more structures 10A and 10B are arranged in series. With the diaphragm compressor 1 having such a configuration, it is possible to compress fluid effectively in a small size.SELECTED DRAWING: Figure 6

Description

The present invention relates to a diaphragm type compressor, a cooling unit, a projector, a recording device, and a three-dimensional model manufacturing device.

Conventionally, various diaphragm type compressors including a diaphragm and a compression unit capable of flowing in and out of a fluid by pressing the diaphragm have been used. For example, Patent Document 1 discloses a diaphragm pump having a diaphragm and a pump chamber, and reciprocating the diaphragm to transfer a fluid.

JP-A-2002-106468

However, conventional diaphragm type compressors such as the diaphragm pump described in Patent Document 1 have not been able to effectively compress the fluid. Further, if two or more structures having a diaphragm and a compression chamber in which the fluid is compressed are simply connected, the fluid may be effectively moved but the fluid may not be effectively compressed. In addition, the entire device becomes large.

The diaphragm type compressor of the present invention for solving the above problems includes a structure including a pressing portion, a diaphragm, and a substrate partially separated from the diaphragm and partially joined to the diaphragm. The pressing portion is arranged on the side of the diaphragm opposite to the substrate, and the separated portion between the diaphragm and the substrate is a part of the flow path through which the fluid flows, and each of the two or more structures. The flow path is arranged in series.

The schematic diagram which shows the use example in the projector of the diaphragm type compressor which concerns on Example 1 of this invention. The schematic diagram which shows the example of the recording apparatus which can use the diaphragm type compressor which concerns on Example 1 of this invention. The schematic diagram which shows the use example in the recording apparatus of the diaphragm type compressor which concerns on Example 1 of this invention. The schematic diagram which shows the example of the 3D modeling apparatus which can use the diaphragm type compressor which concerns on Example 1 of this invention. The schematic diagram which shows the use example in the 3D modeling apparatus of the diaphragm type compressor which concerns on Example 1 of this invention. The front sectional view showing the diaphragm type compressor which concerns on Example 1 of this invention. The front sectional view showing the compression unit of the diaphragm type compressor which concerns on Example 1 of this invention. FIG. 3 is a perspective sectional view showing a compression unit of the diaphragm type compressor according to the first embodiment of the present invention. The front sectional view showing the diaphragm type compressor which concerns on Example 2 of this invention. The perspective view which shows the diaphragm type compressor which concerns on Example 3 of this invention. FIG. 3 is a perspective view showing a diaphragm type compressor according to a third embodiment of the present invention as viewed from an angle different from that of FIG. The front sectional view showing the diaphragm type compressor which concerns on Example 4 of this invention.

First, the present invention will be described schematically.
The diaphragm type compressor according to the first aspect of the present invention for solving the above problems has a structure including a pressing portion, a diaphragm, and a substrate partially separated from the diaphragm and partially joined. The pressing portion includes the body, and the pressing portion is arranged on the side of the diaphragm opposite to the substrate, and the separated portion between the diaphragm and the substrate is a part of a flow path through which a fluid flows, and two or more. Each of the flow paths of the structure is arranged in series.

According to this aspect, the fluid can be effectively compressed by two or more structures. Further, since each flow path of the two or more structures is one member arranged in series, the device can be miniaturized. Therefore, it is possible to obtain a diaphragm type compressor that is small and can effectively compress the fluid.

The diaphragm type compressor of the second aspect of the present invention includes a buffer chamber for accommodating the fluid compressed by the structure, and the buffer chamber is formed of two or more separated portions of the structure via a valve. It is characterized in that it is connected to each.

According to this embodiment, a buffer chamber for accommodating the fluid compressed by the structure is provided, and the fluid can be compressed even in the buffer chamber, so that the fluid can be compressed particularly effectively as a diaphragm type compressor. ..

In the diaphragm type compressor of the third aspect of the present invention, in the second aspect, the buffer chamber has two or more when viewed from the direction intersecting the direction in which the two or more structures are arranged in series. It is characterized in that it overlaps with any one of the separated portions of the structure.

According to this aspect, the buffer chamber overlaps with any one of the separated portions of the two or more structures when viewed from the direction intersecting the direction in which the two or more structures are arranged in series. There is. Therefore, the device can be miniaturized particularly effectively.

In the diaphragm type compressor of the fourth aspect of the present invention, in the second or third aspect, the first plate portion on which the diaphragm is formed, the second plate portion on which the buffer chamber is formed, and the above. A third plate portion is provided between the first plate portion and the second plate portion to form a path connecting the compression chamber to be compressed by the pressing portion pressing the diaphragm and the buffer chamber. The third plate portion is characterized in that the rigidity is higher than that of the first plate portion and the second plate portion.

According to this aspect, the performance of the diaphragm type compressor is deteriorated by providing the third plate portion having high rigidity between the first plate portion where the diaphragm is formed and the second plate portion where the buffer chamber is formed. The diaphragm type compressor can be made highly rigid without causing it.

In the diaphragm type compressor according to the fifth aspect of the present invention, in any one of the first to fourth aspects, the pressing portion is a pressing pressure transmitting plate straddling the diaphragms of two or more of the structures. Is arranged.

According to this aspect, the pressing portion is arranged with a pressing pressure transmitting plate straddling each diaphragm of two or more structures. Therefore, since two or more diaphragms can be pressed in synchronization, the pressing control of the diaphragm can be simplified.

In the diaphragm type compressor of the sixth aspect of the present invention, in any one of the first to fifth aspects, the volume of the separated portion of each of the two or more structures is different in size. It is a feature.

According to this aspect, two or more structures can be optimized according to the installation location of the diaphragm type compressor, the required performance, and the like by making the volume of the separated portion different.

The cooling unit according to the seventh aspect of the present invention includes a diaphragm type compressor according to any one of the first to sixth aspects, a fluid heat dissipation section, a fluid heat exchange section, and a fluid expansion section. The diaphragm type compressor is arranged between the heat exchange section and the heat dissipation section.

According to this aspect, since the diaphragm type compressor which is small and can effectively compress the fluid is provided, it is possible to make a small and high-performance cooling unit.

The projector of the eighth aspect of the present invention includes a light source, a panel that absorbs light, a heat exchange medium, and a cooling unit of the seventh aspect, and the heat exchange medium includes the light source and the panel. It is characterized in that it is provided between one of them and the heat exchange unit.

According to this aspect, since it is provided with a diaphragm type compressor that is small and can effectively compress a fluid, it can be a small and high-performance projector.

The recording device of the ninth aspect of the present invention includes a recording head for ejecting ink, an electronic circuit board connected to the recording head, a heat exchange medium, and a cooling unit of the seventh aspect. The heat exchange medium is provided between one of the recording head and the electronic circuit board and the heat exchange unit.

According to this aspect, since it is provided with a diaphragm type compressor that is small and can effectively compress a fluid, it can be a small and high-performance recording device.

The three-dimensional model manufacturing apparatus according to the tenth aspect of the present invention includes a hopper that houses a raw material that is a constituent material of the three-dimensional model, a melting portion that melts the raw material, and the raw material from the hopper to the melting portion. The heat exchange medium is provided between the supply path and the heat exchange unit, comprising a supply path for supplying the heat exchange medium, a heat exchange medium, and a cooling unit according to the seventh aspect. ..

According to this aspect, since the diaphragm type compressor which is small and can effectively compress the fluid is provided, it is possible to obtain a small and high-performance three-dimensional model manufacturing apparatus.

Hereinafter, the diaphragm type compressor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[Example 1] (FIGS. 1 to 10)
The diaphragm type compressor 1 according to the first embodiment of the present invention will be described.

<Projector>
First, with reference to FIG. 1, a projector 100, which is an example of an apparatus using the diaphragm type compressor 1 according to the first embodiment of the present invention, will be described.

The projector 100 shown in FIG. 1 includes a light source unit 102 including a light source 114, a phosphor 111, a dichroic mirror 113, and the like. It also includes an optical element unit 103 including an optical element 112a for red light, an optical element 112b for green light, an optical element 112c for blue light, a projection lens 104, and the like. Further, a cooling unit 101 for cooling the light source unit 102 and the optical element unit 103 is provided. Here, the panel 112 is an optical element that absorbs the light emitted from the light source 114.

The cooling unit 101 includes a diaphragm type compressor 1, a heat exchange section 107, an expansion section 108 of a fluid as a refrigerant, an evaporator 106 as a heat dissipation section, and the like, which will be described in detail later, and is a primary refrigerant pipe. The primary refrigerant flows through 109 in the direction F. With such a configuration, the cooling unit 101 can cool the light source unit 102 and the optical element unit 103, that is, the light source 114 and the panel 112, which are objects to be cooled.

The primary refrigerant is compressed by the diaphragm type compressor 1 and the temperature is raised. Here, the primary refrigerant flowing into the diaphragm type compressor 1 is a low pressure gas, and the primary refrigerant flowing out from the diaphragm type compressor 1 is a high pressure gas.

The primary refrigerant compressed by the diaphragm type compressor 1 is cooled to a predetermined temperature by the heat exchange unit 107. Here, the primary refrigerant cooled by the heat exchange unit 107 is a high-pressure liquid.

The primary refrigerant cooled by the heat exchange unit 107 is expanded by the expansion unit 108, and the temperature drops. Here, the primary refrigerant expanded by the expansion unit 108 is a low-pressure liquid.

In the evaporator 106, the primary refrigerant is changed from a liquid to a gas inside the evaporator 106, and the heat inside the evaporator 106 is absorbed. Here, the light source unit 102, the optical element unit 103, and the cooling unit 101 are connected by a secondary refrigerant pipe 110, and the secondary refrigerant circulates in the secondary refrigerant pipe 110 by the liquid feed pump 105. That is, a secondary refrigerant and a secondary refrigerant pipe 110 as heat exchange media are provided between the light source 114 and the panel 112 and the heat exchange unit 107. The primary refrigerant pipe 109 and the secondary refrigerant pipe 110 are arranged side by side inside the evaporator 106 of the cooling unit 101. Since the evaporator 106 has such an internal configuration, the secondary refrigerant is cooled inside the evaporator 106 which has become cold by changing the primary refrigerant from a liquid to a gas. The cooled secondary refrigerant circulates in the light source unit 102 and the optical element unit 103, so that the light source unit 102 and the optical element unit 103 are cooled.

As described above, the heat exchange unit 107 is configured to be able to receive the heat from the light source 114 and the panel 112. As described above, the heat exchange unit 107 is configured to be able to receive heat from at least one of the light source 114 and the panel 112, so that a compact and high-performance projector can be obtained.

<Recording device>
Next, a recording device 200, which is an example of a device using the diaphragm type compressor 1 according to the first embodiment of the present invention, will be described with reference to FIGS. 2 and 3. Since the cooling unit 101 used in the recording device 200 has the same configuration as the cooling unit 101 of FIG. 1, detailed description of the cooling unit 101 will be omitted.

As shown in FIG. 2, the recording device 200 has a square box-shaped main body 212, and a carriage 213 is installed in the central region of the main body 212 so as to extend along the main scanning direction A in FIG. Guided by the guide spindle 214, the guide spindle 214 is provided so as to be reciprocally movable in the principal scanning direction A.

As shown in FIG. 2, in the central region of the main body 212, a platen 215 as a long plate-shaped medium support portion is placed at a lower position facing the carriage 213 in a state in which the longitudinal direction thereof is parallel to the main scanning direction. Have been placed. A paper feed cassette 216 is mounted on the lower part of the front surface of the recording device 200 in a state where it can be inserted and removed from the concave mounted portion 212A formed in the main body 212 so that the front side opens. Further, a plurality of ink cartridges 217 are loaded inside the cover 212B that covers the front surface of the right end portion of the main body 212.

The ink of each ink cartridge 217 is supplied to the carriage 213 through a plurality of ink supply tubes (not shown) attached to the flexible wiring board 218, and the recording head provided at the lower part of the carriage 213 as shown in FIG. Ink droplets are ejected from 219. The recording head 219 has a pressure element (piezoelectric element, electrostatic element, heat generating element, etc.) that applies a pressure for ejecting ink to the ink for each nozzle, and a predetermined voltage is applied to the pressure element. When applied, ink droplets are ejected from the corresponding nozzles.

At the time of recording, the recording medium is fed from the cassette 216, and ink droplets are ejected from the recording head 219 in the process of moving to the main scanning direction A together with the carriage 213 with respect to the recording medium located on the platen 215. As a result, one line of recording is performed. In this way, the recording operation by one scan of the carriage 213 and the transfer operation of the recording medium in the transfer direction B to the next line are alternately repeated, so that the recording on the recording medium is advanced. Further, various operation switches 220 including a power switch are provided in the lower part of the front left end of the main body 212. Along with recording, the temperature of the electronic circuit board 211 that sends a drive signal to the recording head 219 and the recording head 219 rises. When the temperature of the recording head 219 rises, the properties of the ink in the ink supply path in the recording head 219 including the nozzle change, and the ejection performance may deteriorate. Further, when the temperature of the electronic circuit board 211 rises, there is a risk that the drive signal may be erroneously transmitted.

Therefore, as shown in FIG. 3, the carriage 213 is provided with a cooling unit 101, a liquid feed pump 105, and a secondary refrigerant pipe 110, as in the projector 100 of FIG. Here, a secondary refrigerant and a secondary refrigerant pipe 110 as heat exchange media are provided between the recording head 219, the electronic circuit board 211, and the heat exchange unit 107. The carriage 213 is provided with a head unit 210 including a recording head 219 and an electronic circuit board 211 connected to the recording head 219. The heat exchange unit 107 of the cooling unit 101 includes the recording head 219 and the electronic circuit board. It is configured to be able to receive heat from 211. As described above, the heat exchange unit 107 is configured to be able to receive heat from at least one of the recording head 219 and the electronic circuit board 211, so that a compact and high-performance recording device can be obtained.

<Three-dimensional model manufacturing equipment>
Next, a three-dimensional model manufacturing apparatus 300, which is an example of an apparatus using the diaphragm type compressor 1 according to the first embodiment of the present invention, will be described with reference to FIGS. 4 and 5. Since the cooling unit 101 used in the recording device 200 has the same configuration as the cooling unit 101 of FIG. 1, detailed description of the cooling unit 101 will be omitted. Here, the X direction in FIGS. 4 and 5 is a horizontal direction, and the Y direction is a horizontal direction and a direction orthogonal to the X direction. The Z direction is the vertical direction.

In addition, "three-dimensional modeling" in this specification indicates that a so-called three-dimensional model is formed, and is so-called, for example, a flat plate shape, for example, a shape composed of one layer. It is also included to form a shape having a thickness even if it is a two-dimensional shape.

As shown in FIG. 4, the three-dimensional model manufacturing apparatus 300 includes a hopper 302 that houses pellets 319 as a constituent material (raw material) constituting the three-dimensional model. The pellets 319 housed in the hopper 302 are supplied to the circumferential surface 304a of the substantially columnar flat screw 304 via the supply path 303.

A spiral notch 304b extending from the circumferential surface 304a to the central portion 304c is formed on the bottom surface of the flat screw 304. Therefore, by rotating the flat screw 304 with the motor 306 in the direction along the Z direction as the rotation axis, the pellets 319 are fed from the circumferential surface 304a to the central portion 304c.

Barrels 305 are provided at positions facing the bottom surface of the flat screw 304 at predetermined intervals. A heater 307 and a heater 308 are provided near the upper surface of the barrel 305. Since the flat screw 304 and the barrel 305 have such a configuration, the space formed by the notch 304b formed between the bottom surface of the flat screw 304 and the top surface of the barrel 305 by rotating the flat screw 304. Pellets 319 are supplied to the portion 320 and move from the circumferential surface 304a to the central portion 304c. When the pellet 319 moves through the space portion 320 due to the notch 304b, the pellet 319 is melted or plasticized by the heat of the heater 307 and the heater 308, and is applied by the pressure accompanying the movement of the narrow space portion 320. Be pressured. By plasticizing the pellet 319 in this way, the fluid constituent material is ejected from the nozzle 310a.

In a plan view, a movement path 305a of a constituent material, which is a molten pellet 319, is formed in the central portion of the barrel 305. The movement path 305a is connected to the nozzle 310a of the injection unit 310 that ejects the constituent material.

The injection unit 310 has a configuration capable of continuously injecting a fluid-state constituent material from the nozzle 310a. The injection unit 310 is provided with a heater 309 for adjusting the constituent material to a desired viscosity. The constituent material injected from the injection unit 310 is injected in a linear shape. Then, the constituent material is linearly ejected from the injection portion 310 to form a layer of the constituent material.

In the three-dimensional model manufacturing apparatus 300 of FIG. 4, the injection unit 321 is formed by the hopper 302, the supply path 303, the flat screw 304, the barrel 305, the motor 306, the injection unit 310, and the like. The three-dimensional molded article manufacturing apparatus 300 of this embodiment is configured to include one injection unit 321 for injecting the constituent material, but may be configured to include a plurality of injection units 321 for injecting the constituent material.

Further, the three-dimensional model manufacturing apparatus 300 includes a stage unit 322 for mounting a layer formed by being injected from the injection unit 321. The stage unit 322 includes a plate 311 on which the layer is actually placed. Further, the stage unit 322 includes a first stage 312 on which a plate 311 is placed and whose position can be changed along the Y direction by driving the first drive unit 315. Further, the stage unit 322 includes a second stage 313 on which the first stage 312 is mounted and whose position can be changed along the X direction by driving the second drive unit 316. The stage unit 322 includes a base unit 314 that can change the position of the second stage 313 along the Z direction by driving the third drive unit 317.

Further, the three-dimensional model manufacturing apparatus 300 is electrically connected to a control unit 318 that controls various drives of the injection unit 321 and various drives of the stage unit 322.

Further, the three-dimensional model manufacturing apparatus 300 includes a supply path cooling unit 323 for cooling the supply path 303. In the supply path cooling unit 323, the heat generated by the heater 307, the heater 308, the heater 309, and the like heats the supply path 303, and the pellet 319 of the supply path 303 melts, causing a supply failure of the pellet 319 in the supply path 303. It is a device for cooling the supply path 303 in order to suppress the above.

As shown in FIG. 5, the supply path cooling unit 323 is provided with a cooling unit 101, a liquid feed pump 105, and a secondary refrigerant pipe 110, similarly to the projector 100 in FIG. 1 and the carriage 213 in FIG. Has been done. The secondary refrigerant pipe 110 is arranged in the vicinity of the supply path 303, and the heat exchange unit 107 of the cooling unit 101 is configured to be able to receive heat from the supply path 303. That is, a secondary refrigerant and a secondary refrigerant pipe 110 as heat exchange media are provided between the supply path 303 and the heat exchange unit 107. As described above, since the heat exchange unit 107 of the cooling unit 101 is configured to be able to receive the heat from the supply path 303, it is possible to obtain a compact and high-performance three-dimensional model manufacturing apparatus.

<Diaphragm compressor>
Next, the configuration of the diaphragm type compressor 1 of this embodiment will be described in detail with reference to FIGS. 6 to 8. In addition, in FIGS. 6 to 8, some constituent members may be simplified and shown differently from the actual shape so that the outline of the structure can be easily understood.

As shown in FIG. 6, the diaphragm type compressor 1 of the present embodiment includes an outer wall portion 21, a compression unit 10 having the diaphragm 11 inside the outer wall portion 21, and a pressing portion for pressing the diaphragm 11. A pressing unit 20 having 22 is provided. The pressing portion 22 of this embodiment is a piezo element, and is deformed by applying a voltage so that the diaphragm 11 can be pressed in the pressing direction P. However, the pressing portion 22 is not limited to the one having a piezo element.

As shown in FIGS. 6 to 8, the compression unit 10 of this embodiment includes a first plate portion 12 in which two diaphragms 11 and a chamber 14 as two compression chambers are formed, a buffer chamber 15, and a suction chamber. It includes a second plate portion 13 in which a port 16 and a discharge port 17 are formed, and a third plate portion 30 formed between the first plate portion 12 and the second plate portion 13. The first plate portion 12 has a first plate-shaped member 12a on which two diaphragms 11 are formed, and a second plate-shaped member 12b forming two chambers 14 together with the first plate-shaped member 12a. There is. Further, as shown in FIGS. 7 and 8, the second plate portion 13 is a fluid path 16b connecting the suction port 16 and the chamber 14A of the two chambers 14, and the chamber 14B of the two chambers 14. It has a fluid path 17b, which connects the force and the discharge port 17. Then, as shown in FIGS. 7 and 8, the third plate portion 30 is a valve that opens and closes the fluid path 16b connecting the suction port 16 and the chamber 14A and the fluid path 18 connecting the chamber 14A and the buffer chamber 15. It has 18a, a fluid path 19 connecting the buffer chamber 15 and the chamber 14B, and a valve 17a for opening and closing the fluid path 17b connecting the chamber 14B and the discharge port 17. As shown in FIGS. 7 and 8, the second plate-shaped member 12b is provided with a valve 16a for opening and closing the fluid path 16b and a valve 19a for opening and closing the fluid path 19.

Then, as shown in FIGS. 6 to 8, the compression unit 10 of the present embodiment has a structure 10A including a diaphragm 11A of the two diaphragms 11 and a chamber 14A, and one of the two diaphragms 11. The structure 10B including the diaphragm 11B and the chamber 14B are integrally arranged in series to form one unit.

Further, as shown in FIG. 6, the pressing unit 20 of the present embodiment includes a pressing portion 22A capable of pressing the diaphragm 11A and a pressing portion 22B capable of pressing the diaphragm 11B as the pressing portion 22. There is. The diaphragm type compressor 1 of this embodiment effectively compresses the refrigerant which is a fluid by moving the two pressing portions 22 in the pressing direction P and pressing the two diaphragms 11. Specifically, by pressing and releasing the diaphragm 11A by the pressing portion 22A, the refrigerant is sucked from the suction port 16 and introduced into the chamber 14A. Further, by pressing the diaphragm 11A with the pressing portion 22A, the refrigerant is introduced from the chamber 14A into the buffer chamber 15. Then, the refrigerant is introduced from the buffer chamber 15 into the chamber 14B by pressing and releasing the diaphragm 11B by the pressing portion 22B. Then, by pressing the diaphragm 11B with the pressing portion 22B, the refrigerant is discharged from the chamber 14B through the discharge port 17. In the pressing unit 20 of this embodiment, the pressing portion 22A and the pressing portion 22B are moved in the pressing direction P in synchronization with each other. Further, along with these operations, the refrigerant is compressed in the chamber 14A and the chamber 14B, but the refrigerant is also compressed in the buffer chamber 15.

Once summarized here, the diaphragm type compressor 1 of the present embodiment includes two structures, a structure 10A and a structure 10B, having a diaphragm 11 and a chamber 14 as a compression chamber in which the fluid is compressed. The two structures are formed as one unit arranged in series.

In other words, the diaphragm type compressor 1 of this embodiment includes a pressing portion 22, a diaphragm 11, a second plate portion 13 which is a substrate which is partially separated from the diaphragm 11 and partially joined. The structure 10A and 10B including the third plate portion 30, and the pressing portion 22 is arranged on the side of the diaphragm 11 opposite to the second plate portion 13 and the third plate portion 30, and the diaphragm 11 and the structure 10A and 10B are provided. The separated portions (fluid path 16b, fluid path 17b, fluid path 18 and fluid path 19) between the second plate portion 13 and the third plate portion 30 form a part of the flow path through which the fluid flows, and two or more. The flow paths of the structures 10A and 10B are arranged in series. Since the diaphragm type compressor 1 of this embodiment has such a configuration, the refrigerant which is a fluid can be effectively compressed by two or more structures 10A and 10B. Further, the diaphragm type compressor 1 of this embodiment is a member in which the flow paths of two or more structures 10A and 10B are arranged in series, so that the apparatus can be miniaturized. .. Therefore, the diaphragm type compressor 1 of this embodiment is a small diaphragm type compressor capable of effectively compressing a fluid.
The diaphragm type compressor 1 of the present embodiment has a configuration including two structures 10A and 10B, but has three or more structures, and these three or more structures are arranged in series 1. It may be configured as a unit.

Further, the diaphragm type compressor 1 of the present embodiment includes a buffer chamber 15 for accommodating the fluid compressed by the structures 10A and 10B. The buffer chamber 15 is connected to each of the chambers 14A and 14B, which are compression chambers of the two structures 10A and 10B, via valves 18a and 19a. Then, the diaphragm type compressor 1 of this embodiment forms one unit including two structures 10A and 10B and a buffer chamber 15. That is, the diaphragm type compressor 1 of the present embodiment includes a buffer chamber 15 that is connected to each of the chambers 14A and 14B via valves 18a and 19a and stores the fluid compressed by the structure 10A. In 15, the fluid can be compressed. Therefore, it is a diaphragm type compressor capable of compressing a fluid particularly effectively.

Further, in the diaphragm type compressor 1 of the present embodiment, as shown by FIGS. 6 to 8, the buffer chamber 15 is in a direction intersecting the direction in which two or more structures 10A and 10B are arranged in series. Seen from the pressing direction P, which is, it overlaps with the fluid path 18 and the fluid path 19 in the separated portions of the two or more structures 10A and 10B. Therefore, the diaphragm type compressor 1 of this embodiment makes it possible to miniaturize the apparatus particularly effectively.

Further, in the diaphragm type compressor 1 of the present embodiment, as shown in FIGS. 6 to 8, the surfaces of the chambers 14A and 14B on the diaphragm 11 side are both curved surfaces. Since the surface of the chamber 14 on the diaphragm 11 side is curved, the diaphragm type compressor 1 of this embodiment can reduce the gap formed in the chamber 14 when pressed, and effectively presses the chamber 14. It is possible to compress the fluid particularly effectively.

In the diaphragm type compressor 1 of this embodiment, the volumes of the separated portions of the structures 10A and 10B are different. By making the volume of the separated portion different, two or more structures 10A and 10B can be optimized according to the installation location of the diaphragm type compressor 1 and the required performance.

Further, as described above, in the diaphragm type compressor 1 of the present embodiment, the first plate portion 12 in which the diaphragm 11 and the chamber 14 are formed, the second plate portion 13 in which the buffer chamber 15 is formed, and the first plate portion 13 are formed. A third plate portion 30 is provided between the plate portion 12 and the second plate portion 13 to form fluid paths 18 and 19 which are paths connecting the chamber 14 and the buffer chamber 15. Here, the third plate portion 30 of this embodiment is made of metal and has higher rigidity than the resin-made first plate portion 12 and the second plate portion 13. For example, since the first plate portion 12 has a diaphragm 11, it is difficult to make it highly rigid. However, as in the diaphragm type compressor 1 of this embodiment, the performance of the diaphragm type compressor 1 is deteriorated by making the third plate portion 30 more rigid than the first plate portion 12 and the second plate portion 13. The diaphragm type compressor 1 can be made highly rigid without causing it. Further, in the present embodiment, the first plate portion 12 and the third plate portion 30, and the second plate portion 13 and the third plate portion 30 are both adhered with an adhesive. In the case of, by making the third plate portion 30 more rigid than the first plate portion 12 and the second plate portion 13, the first plate portion 12 and the third plate portion 30, and the second plate portion 13 and the second plate portion 13 3 The peeling of the plate portion 30 can be suppressed.

As described above, in the pressing unit 20 of this embodiment, the pressing portion 22A and the pressing portion 22B are moved in the pressing direction P in synchronization with each other. That is, the diaphragm type compressor 1 of this embodiment includes two pressing portions 22 for pressing the diaphragm 11, and the pressing portion 22 is configured to be able to press the two diaphragms 11 in synchronization. By configuring the diaphragm type compressor 1 of this embodiment to simultaneously press two or more diaphragms 11, it is possible to simplify the pressing control of the diaphragm 11. Further, as described above, in the present embodiment, the first plate portion 12 and the third plate portion 30 are adhered by an adhesive, but in such a configuration, the pressing portion 22A and the pressing portion 22B can be moved. By synchronizing, the bias of the operation of the structure 10A and the structure 10B can be suppressed, and the peeling of the first plate portion 12 and the third plate portion 30 can be suppressed.

[Example 2] (Fig. 9)
Next, the diaphragm type compressor 1 according to the second embodiment of the present invention will be described with reference to FIG. Note that FIG. 9 is a diagram corresponding to FIG. 6 in the diaphragm type compressor 1 of the first embodiment. Further, the constituent members common to those in the first embodiment are indicated by the same reference numerals, and detailed description thereof will be omitted.

The diaphragm type compressor 1 of the first embodiment includes a plurality of pressing portions 22 that simultaneously press two or more diaphragms 11. On the other hand, the diaphragm type compressor 1 of the present embodiment includes only one pressing portion 22 as shown in FIG. 9, and presses at a position between the pressing portion 22 and the diaphragm 11A and the diaphragm 11B. It is provided with a pressing force transmission plate 31 that simultaneously transmits the pressing force from the portion 22 to each diaphragm 11. That is, in the diaphragm type compressor 1 of this embodiment, the pressing portion 22 is arranged with a pressing force transmitting plate 31 straddling the diaphragms 11A and 11B of the two or more structures 10A and 10B, respectively. Therefore, since two or more diaphragms 11 can be pressed in synchronization, the pressing control of the diaphragm 11 can be simplified. Further, by using one pressing portion 22 as in the diaphragm type compressor 1 of the present embodiment, the cost can be reduced and the pressing control of the diaphragm 11 can be particularly simplified. .. Further, since the pressing portion 22 can be made large, the displacement amount can be increased, and the fluid can be compressed particularly effectively.

[Example 3] (FIGS. 10 and 11)
Next, the diaphragm type compressor 1 according to the third embodiment of the present invention will be described with reference to FIGS. 10 and 11. Further, the constituent members common to those in the first and second embodiments are indicated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIGS. 10 and 11, the diaphragm type compressor 1 of this embodiment includes a compression unit 10 in which two structures 10A and 10B are arranged in series. Further, the diaphragm type compressor 1 of the present embodiment has an actuator 2 that expands and contracts in the expansion and contraction direction E when a voltage is applied, and a pressing portion capable of pressing the diaphragm 11 formed in the compression unit 10 in the pressing direction P. A pressing unit 20 having 22 is provided. Specifically, when a voltage is applied and the actuator 2 extends in the expansion / contraction direction E, the pressing unit 20 expands in the expansion / contraction direction E and contracts in the pressing direction P, and the diaphragm pressing portion 22a of the pressing portions 22 becomes the structure 10A. The diaphragm 11A of the above and the diaphragm 11B of the structure 10B are pressed.

In the compression unit 10, as shown in FIG. 11, a suction port 16 is formed in the structure 10A, and a discharge port 17 is formed in the structure 10B. The internal configuration of the compression unit 10 is the same as that of the diaphragm type compressor 1 of the first embodiment. Further, the compression unit 10 includes a structure 10A having a diaphragm 11A and a chamber 14 not shown, and a structure 10B having a diaphragm 11B and a chamber 14 not shown. The compression unit 10 is formed as one unit in which two structures 10A and 10B are arranged in series.

As shown in FIGS. 10 and 11, the pressing unit 20 has a tubular shape capable of accommodating the compression unit 10 inside. The diaphragm pressing portion 22a of the pressing portions 22 is provided on the first plate portion 12 side at a position where it comes into contact with the diaphragm 11A and the diaphragm 11B, and the second plate portion 13 is provided on the second plate portion 13 side. The second plate portion pressing portion 22b of the pressing portion 22 is provided at a position where it comes into contact with. Further, the pressing unit 20 has actuators 2a and 2b that can be expanded and contracted in the expansion and contraction direction E with the expansion and contraction direction E in the direction intersecting the longitudinal direction of the pressing portion 22 as the longitudinal direction at both ends in the longitudinal direction of the pressing portion 22. I have.

Since the pressing unit 20 has such a configuration, a voltage is applied to the actuators 2a and 2b, and the actuators 2a and 2b expand and contract in the expansion and contraction direction E, so that the entire compression unit 10 is expanded and contracted only in the expansion and contraction direction E. It also deforms in the pressing direction P. Then, the entire compression unit 10 is deformed in the pressing direction P, so that the diaphragm pressing portion 22a presses the diaphragms 11A and 11B while the second plate portion pressing portion 22b presses the second plate portion 13.

[Example 4] (Fig. 12)
Next, the diaphragm type compressor 1 according to the fourth embodiment of the present invention will be described with reference to FIG. Further, the constituent members common to those in the first to third embodiments are indicated by the same reference numerals, and detailed description thereof will be omitted.

In the diaphragm type compressor 1 of Example 1, the surfaces of the chambers 14A and 14B on the diaphragm 11 side were curved. However, as in the diaphragm type compressor 1 of the present embodiment shown in FIG. 12, the surfaces of the chambers 14A and 14B on the diaphragm 11 side may be flat.

It is needless to say that the present invention is not limited to the above examples, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. For example, the diaphragm type compressor 1 of the present invention can be applied to various other devices such as a robot, in addition to the projector 100, the recording device 200, and the three-dimensional model manufacturing device 300. Further, the pressing unit 20 having a structure completely different from that of the pressing units 20 of the first to third embodiments may be provided.

1 ... diaphragm type compressor, 2 ... actuator, 2a ... actuator,
2b ... Actuator, 10 ... Compression unit, 10A ... Structure,
10B ... Structure, 11 ... Diaphragm, 11A ... Diaphragm,
11B ... Diaphragm, 12 ... First plate, 12a ... First plate-shaped member,
12b ... 2nd plate-shaped member, 13 ... 2nd plate (board), 14 ... chamber (compression chamber),
14A ... chamber (compression chamber), 14B ... chamber (compression chamber), 15 ... buffer chamber,
16 ... suction port, 16a ... valve, 16b ... fluid path, 17 ... discharge port, 17a ... valve,
17b ... fluid path, 18 ... fluid path, 18a ... valve, 19 ... fluid path, 19a ... valve,
20 ... pressing unit, 21 ... outer wall, 22 ... pressing, 22A ... pressing,
22B ... Pressing part, 22a ... Diaphragm pressing part, 22b ... Second plate part holding part,
30 ... Third plate (board), 31 ... Pushing pressure transmission plate, 100 ... Projector,
101 ... Cooling unit, 102 ... Light source unit, 103 ... Optical element unit,
104 ... Projection lens, 105 ... Liquid pump, 106 ... Evaporator (heat dissipation part),
107 ... heat exchange part, 108 ... expansion part, 109 ... primary refrigerant pipe,
110 ... Secondary refrigerant pipe (heat exchange medium), 111 ... Fluorescent material, 112 ... Panel,
112a ... Optical element for red light, 112b ... Optical element for green light,
112c ... Optical element for blue light, 113 ... Dichroic mirror, 114 ... Light source,
200 ... Recording device, 210 ... Head unit, 211 ... Electronic circuit board,
212A ... Mounted part, 212B ... Cover, 213 ... Carriage, 214 ... Guide spindle,
215 ... Platen, 216 ... Cassette, 217 ... Ink Cartridge,
218 ... Flexible wiring board, 219 ... Recording head, 220 ... Operation switch,
300 ... 3D model manufacturing equipment, 302 ... Hopper, 303 ... Supply path,
304 ... Flat screw, 304a ... Circumferential surface, 304b ... Notch,
304c ... central part, 305 ... barrel, 305a ... movement path, 306 ... motor,
307 ... heater, 308 ... heater, 309 ... heater, 310 ... injection part,
310a ... Nozzle, 311 ... Plate, 312 ... First stage,
313 ... 2nd stage, 314 ... Base unit, 315 ... 1st drive unit, 316 ... 2nd drive unit,
317 ... 3rd drive unit, 318 ... control unit, 319 ... pellet, 320 ... space part,
321 ... Injection unit, 322 ... Stage unit, 323 ... Supply path cooling unit

Claims (10)

Pressing part and
A structure comprising a diaphragm and a substrate partially separated from the diaphragm and partially joined to the diaphragm.
The pressing portion is arranged on the side of the diaphragm opposite to the substrate.
The separated portion between the diaphragm and the substrate is a part of the flow path through which the fluid flows.
A diaphragm type compressor, characterized in that the flow paths of each of the two or more structures are arranged in series. In the diaphragm type compressor according to claim 1,
A buffer chamber for accommodating the fluid compressed by the structure is provided.
A diaphragm type compressor, characterized in that the buffer chamber is connected to each of the separated portions of the two or more structures via a valve. In the diaphragm type compressor according to claim 2.
The buffer chamber overlaps with any one of the separated portions of the two or more structures when viewed from the direction intersecting the direction in which the two or more structures are arranged in series. Diaphragm type compressor featuring. In the diaphragm type compressor according to claim 2 or 3.
The pressing portion presses the diaphragm between the first plate portion on which the diaphragm is formed, the second plate portion on which the buffer chamber is formed, and the first plate portion and the second plate portion. A third plate portion for forming a path connecting the compression chamber to be compressed with the buffer chamber and the buffer chamber is provided.
The third plate portion is a diaphragm type compressor characterized by having higher rigidity than the first plate portion and the second plate portion. In the diaphragm type compressor according to any one of claims 1 to 4.
The diaphragm type compressor is characterized in that a pressing force transmission plate straddling the diaphragms of each of the two or more structures is arranged in the pressing portion. In the diaphragm type compressor according to any one of claims 1 to 5,
A diaphragm type compressor characterized in that the volumes of the separated portions of each of the two or more structures are different in size. The diaphragm type compressor according to any one of claims 1 to 6.
The heat dissipation part of the fluid and
The heat exchange part of the fluid and
With a fluid expansion,
A cooling unit characterized in that the diaphragm type compressor is arranged between the heat exchange section and the heat dissipation section. Light source and
A panel that absorbs light and
With heat exchange medium
The cooling unit according to claim 7 and
With
A projector characterized in that the heat exchange medium is provided between one of the light source and the panel and the heat exchange unit. A recording head that ejects ink and
An electronic circuit board connected to the recording head,
With heat exchange medium
The cooling unit according to claim 7 and
With
A recording device characterized in that the heat exchange medium is provided between one of the recording head and the electronic circuit board and the heat exchange unit. A hopper that houses the raw materials that make up the three-dimensional model,
A melting part that melts the raw material and
A supply path for supplying the raw material from the hopper to the molten portion, and
With heat exchange medium
The cooling unit according to claim 7 and
With
The three-dimensional model manufacturing apparatus, characterized in that the heat exchange medium is provided between the supply path and the heat exchange unit.

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