JP2006152956A - Electromagnetic pump - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide technology effective for rationalizing an electromagnetic pump. <P>SOLUTION: This electromagnetic pump 100 has resin made groove part opening outward provided on and along an extension direction of a diaphragm mounting frame 151 of a diaphragm mechanism part 150 attached to an electromagnetic fixing plate 111 fixing electromagnets 120, 130 on a pump main body. The groove part is constructed to retain connection wires connecting the electromagnets 120, 130 to an alternating current power source in a state of directly fitting them therein. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a construction technique of an electromagnetic pump.

2. Description of the Related Art Conventionally, a configuration of an electromagnetic pump that sucks a fluid such as air, compresses it, increases its pressure, and discharges the fluid is known (for example, see Patent Document 1). In the electromagnetic pump described in Patent Document 1, the vibrator reciprocates in accordance with the polarity change by the electromagnetic coil (excitation coil) attached to the electromagnet core, and the diaphragm connected to the vibrator is operated in amplitude to change elastically. As a result, the volume change of the compression chamber partitioned by the diaphragm occurs. Thus, the operations of sucking air into the compression chamber and compressing and discharging the sucked air are continuously repeated.
By the way, the electromagnetic pump configured as described above is composed of a large number of component parts. In the electromagnetic pump, there is a high demand for rationalization of the pump by simplifying the structure of each component part as much as possible. .
JP 9-317650 A

  This invention is made | formed in view of this point, and makes it a subject to provide a technique effective in aiming at rationalization of an electromagnetic pump.

The present invention is configured to solve the above problems.
The present invention can be applied to an electromagnetic pump or the like that sucks and compresses various fluids to increase the pressure and discharges fluid of a predetermined pressure and flow rate to a desired supply destination. Specific examples of the electromagnetic pump include an electromagnetic pump for supplying aeration air for an aeration septic tank, for supplying oxygen for fish farming, and for air blowing such as a bubble bath.

(First invention of the present invention)
A first invention of the present invention that solves the above-described problems is an electromagnetic pump as set forth in claim 1. The electromagnetic pump according to claim 1 includes at least a compression chamber, a diaphragm, a vibrator, an electromagnet, an electromagnet fixing member, a connection wiring, and a diaphragm mounting frame.

  The compression chamber of the present invention is a resin chamber for compressing fluid, and is constituted by a case formed of a resin material. The “fluid” compressed in the compression chamber includes various compressive fluids such as a gas including air and a liquid including water.

  The diaphragm of the present invention is a diaphragm having a function of elastically deforming so as to partition a fluid compression chamber and perform a fluid suction operation and a discharge operation in the compression chamber. A diaphragm having a configuration capable of elastic deformation is used, and a fluid suction operation and a discharge operation are performed by changing the volume of a compression chamber partitioned by the diaphragm. Typically, the diaphragm of the present invention is constituted by a plate-like elastic material (rubber material, resin material, etc.).

  The vibrator of the present invention is a vibrator which is connected to the diaphragm having the above-described configuration and has a function capable of driving the diaphragm in the suction operation direction and the discharge operation direction. A magnetic force for driving the diaphragm is applied to the vibrator through the electromagnet of the present invention. That is, in this electromagnet, a magnetic force is generated by supplying electric power from the AC power source to the electromagnetic coil through the connection wiring. Thus, the vibrator operates to drive the diaphragm in the suction operation direction and the discharge operation direction. Typically, the diaphragm reciprocates linearly, so that the diaphragm is driven in the suction operation direction and the discharge operation direction. This electromagnet is fixed to the pump body by the metal electromagnet fixing member of the present invention.

  The diaphragm mounting frame of the present invention is configured as a resin mounting frame that is arranged in connection with the electromagnet fixing member while holding the outer peripheral edge of the diaphragm having the above-described configuration.

In particular, in the electromagnetic pump of the present invention, at least one of the resin compression chamber and the diaphragm mounting frame includes a resin holding portion. In the present invention, there is a configuration in which a resin holding portion is provided in one of the resin compression chamber and the diaphragm mounting frame, or a configuration in which a resin holding portion is provided in both the resin compression chamber and the diaphragm mounting frame. Is included. In addition, the present invention relates to the configuration of the resin-made holding portion, in which the holding portion is made of the same resin material as the compression chamber and the diaphragm mounting frame, and is made of a resin material different from the compression chamber and the diaphragm mounting frame. Embodiments are included.
In the present invention, the resin holding portion is configured as a portion that can directly hold the connection wiring in the region where the connection wiring extends. With respect to the structure of the holding portion of the present invention, a groove-like portion that can be directly fitted and held in the connection wiring, a hook-like portion that can be hooked and held directly, or the like can be used. Thus, the connection wiring can be directly held by the resin holding portion.

  As described above, according to such a configuration of the electromagnetic pump according to the first aspect, it is possible to simplify the holding structure for holding the connection wiring for connecting the electromagnet to the AC power source, and thereby the electromagnetic type Streamline the pump. Further, according to the present invention, the electromagnet is connected to the AC power source with the resin compression chamber originally having the function of compressing the fluid and the resin diaphragm mounting frame having the function of originally holding the outer peripheral edge of the diaphragm. It can be used as a means for holding the connection wiring, which is reasonable.

  As described above, according to the electromagnetic pump of the present invention, a resin holding portion is provided in at least one of the resin compression chamber and the diaphragm mounting frame, and the connection wiring is directly held by this holding portion. With this configuration, it is possible to rationalize the electromagnetic pump.

  Hereinafter, the configuration of an electromagnetic pump 100 according to an embodiment of the “electromagnetic pump” in the present invention will be described with reference to the drawings. The electromagnetic pump 100 has a function of sucking air as a fluid, compressing it, increasing its pressure and discharging it, and constitutes a so-called “electromagnetic diaphragm” type pump. The electromagnetic pump 100 is also referred to as an electromagnetic blower or an electromagnetic compressor depending on the air volume or pressure of the discharged air. The electromagnetic pump 100 is typically used for aeration air supply in an aeration septic tank, oxygen supplementation for fish farming, and air fountain such as a bubble bath.

  FIG. 1 is a plan view of an electromagnetic pump 100 which is an embodiment of the electromagnetic pump of the present invention, and shows a cross-sectional structure of the main part thereof.

  As shown in FIG. 1, the electromagnetic pump 100 accommodates a pump mechanism 110 in its casing 101. The pump mechanism 110 is arranged on a pump base plate (not shown) through vibration isolating means (vibration isolating rubber or the like).

The pump mechanism section 110 includes two pieces of plate-shaped electromagnet fixing plates 111, and these electromagnet fixing plates 111, 111 are arranged on the left and right in FIG. 1 so as to face each other to form a metal electromagnet fixing member. . In a region defined by the metal electromagnet fixing member, a pair of electromagnets (solenoids) 120 and 130 arranged in a vertically opposed manner in FIG. 1 and the opposed surfaces of the pair of electromagnets 120 and 130 The vibrator 140 interposed between the two is housed. The electromagnet cores 122 and 132 of the electromagnets 120 and 130 are clamped from both sides (left and right in FIG. 1) by the sandwiching pieces 111a of the two electromagnet fixing plates 111 and 111, with the mounting bolt 125. 111 and 111 are fixedly attached. The electromagnet fixing member formed by these two pieces of electromagnet fixing plates 111 and 111 is a member for fixing the electromagnets 120 and 130 to the pump body, and corresponds to the “electromagnet fixing member” in the present invention. The electromagnet fixing member may be configured in a case shape that accommodates the electromagnets 120 and 130.
Moreover, resin-made valve case bodies 112 and 112 are arranged on the outer surface of each electromagnet fixing plate 111 via diaphragm mechanism portions 150 and 150. The electromagnet fixing plate 111 is typically made of an iron material (metal material), and is connected to the electromagnets 120 and 130 to form part of the magnetic path by the electromagnets 120 and 130.

  The electromagnets 120 and 130 include electromagnet bobbins 123 and 133 wound with electromagnetic coils (excitation coils) 124 and 134, respectively, and electromagnet cores 122 and 132 connected to the electromagnetic coils 124 and 134, respectively. The electromagnets 120 and 130 correspond to the “electromagnet” in the present invention. An alternating current power supply (not shown) is connected to the electromagnetic coils 124 and 134 of the electromagnets 120 and 130 so that the magnetic pole changes (polarity changes) have the same number of times as the frequency of the alternating current power supply. The electromagnets 120 and 130 have a function of applying a magnetic force for driving the diaphragm mechanisms 150 and 150 to the vibrator 140 in the electromagnet cores 122 and 132.

  The vibrator 140 is mounted so as not to contact the electromagnets 120 and 130 in the gap between the opposing surfaces of the pair of electromagnets 120 and 130. In the vibrator 140, permanent magnets (N pole and S pole) having different polarities are embedded in the vibrator body. The vibrator 140 is configured to reciprocate (vibrate) in the direction of the arrow 10 to the direction of the arrow 12 in FIG. 1 as the polarity of the pair of electromagnets 120 and 130 changes. The vibrator 140 includes connecting shafts 141 and 141 at both ends, and a diaphragm mechanism 150 is disposed at a position corresponding to each connecting shaft 141. This vibrator 140 corresponds to the “vibrator” in the present invention.

  Each diaphragm mechanism 150 includes a disk-shaped (plate-shaped) diaphragm 152 extending in a direction orthogonal to the extending direction of the vibrator 140, and the outer peripheral edge of the diaphragm 152 is held by the diaphragm mounting frame 151. It is fixed at. The diaphragm 152 is formed of a rubber material that can be elastically deformed so as to perform an air suction operation and a discharge operation. This diaphragm 152 corresponds to the “diaphragm” in the present invention. In addition, the diaphragm 152 is sandwiched between two disk-shaped center plates in the central region, that is, the first center plate 153 on the electromagnets 120 and 130 side and the second center plate 154 on the valve case body 112 side. The first center plate 153 and the second center plate 154 are fixed to the connecting shaft 141 of the vibrator 140. Accordingly, the diaphragm 152 is substantially (indirectly) coupled to the vibrator 140 while being sandwiched between the first center plate 153 and the second center plate 154.

  Each valve case body 112 is formed with a suction chamber 113, a discharge chamber 114, and a compression chamber 115. In each valve case body 112, a suction valve 116 is provided on a partition wall 112 a that partitions the suction chamber 113 and the compression chamber 115, and a discharge valve 117 is provided on the partition wall 112 b that partitions the discharge chamber 114 and the compression chamber 115. Is provided. The compression chamber 115 is an air compression region defined by the diaphragm 152 and the resin valve case body 112, and corresponds to the “compression chamber” in the present invention.

  The suction valve 116 is made of an elastic rubber material, and has a suction valve body (suction valve mechanism) that opens or closes a communication hole formed in the partition wall 112a. Similarly, the discharge valve 117 is made of an elastic rubber material, and has a discharge valve body (discharge valve mechanism) that opens or closes the communication hole formed in the partition wall 112b. When the valve body of the suction valve 116 is opened, the suction chamber 113 and the compression chamber 115 are communicated with each other, whereas when the valve body is closed, the communication between the suction chamber 113 and the compression chamber 115 is prevented. The When the valve body of the discharge valve 117 is opened, the discharge chamber 114 and the compression chamber 115 communicate with each other, while when the valve body is closed, the communication between the discharge chamber 114 and the compression chamber 115 is blocked. The

  Here, the structure of the diaphragm mounting frame 151 of the diaphragm mechanism 150 in FIG. 1, which is a characteristic part of the present embodiment, will be described with reference to FIG. FIG. 2 is a perspective view of the diaphragm mounting frame 151 of the diaphragm mechanism 150 in FIG.

  A diaphragm mounting frame 151 shown in FIG. 2 is a resin plate formed in a flat plate shape by a resin material, and is configured to be fixed to each electromagnet fixing plate 111. The diaphragm mounting frame 151 is a member on the side of the electromagnet fixing member connected to the electromagnet fixing member formed by the electromagnet fixing plates 111 and 111 in a state where the outer peripheral edge of the diaphragm 152 is held. It corresponds to “frame”. The diaphragm mounting frame 151 is configured to include a resin groove 155 on the upper side (upper edge). The groove 155 is made of the same resin material as that of the diaphragm mounting frame 151.

  The groove portion 155 of the diaphragm mounting frame 151 is a region in which connecting wires A and B (“connecting wires” in the present invention) of a resin coating structure for connecting the electromagnetic coils 124 and 134 of the electromagnets 120 and 130 to the AC power supply respectively extend. In the present embodiment, the diaphragm mounting frame 151 is located on the upper side of the electromagnetic pump 100 (upper side of the electromagnets 120 and 130) in the extending direction of the diaphragm mounting frame 151 (vertical direction in FIG. 2). The diaphragm mounting frame 151 is opened outward (upward in FIG. 2). The first groove 155a of the groove portion 155 is a groove having a groove width slightly smaller than the wiring diameter of the connection wiring A and a groove depth larger than the wiring diameter. Similarly, the second groove 155b of the groove portion 155 is a groove having a groove width slightly smaller than the wiring diameter of the connection wiring B and a groove depth larger than the wiring diameter. Accordingly, the first groove 155a has a function of holding the connection wiring A in a state where the resin-coated connection wiring A is directly fitted, and the second groove 155b is a resin coating-structured connection wiring B directly. And has a function of holding the connection wiring B in a state of being fitted in the connector. Resin-like groove-like portions such as the first groove 155a and the second groove 155b are effective for directly holding the connection wires A and B of the resin-coated structure with a high holding force. The groove portion 155 composed of the first groove 155a and the second groove 155b is a groove-shaped portion formed by processing or molding the resin diaphragm mounting frame 151 itself into a groove shape. Corresponds to the “holding part”.

In the electromagnetic pump 100 having the above-described configuration, the connection wirings A and B are arranged along the direction intersecting the extending direction of the diaphragm mounting frame 151, and the connection wirings A and B are made of resin from the outside of the diaphragm mounting frame 151. It is moved in the direction of the groove portion 155 and is directly fitted into the first groove 155a and the second groove 155b of the groove portion 155 as it is. Thereby, the connection wirings A and B are held by the diaphragm mounting frame 151 by a predetermined holding force of the first groove 155a and the second groove 155b, and as a result, the electromagnet fixing member side to which the diaphragm mounting frame 151 is fixed Will be held.
On the other hand, the first groove 155a and the second groove 155b are formed in the first groove 155a when a tensile force larger than the holding force of the connection wirings A and B acts in the groove opening direction (upward in FIG. 2). In addition, the connection wirings A and B are allowed to be detached from the second groove 155b. Accordingly, not only the engagement of the first groove 155a and the second groove 155b and the connection wirings A and B but also the release of the engagement can be easily performed.

  Therefore, according to the present embodiment, the connection for connecting the electromagnetic coils 124 and 134 of the electromagnets 120 and 130 to the AC power supply by using the electromagnetic pump 100 having the groove 155 in the diaphragm mounting frame 151 of the diaphragm mechanism 150. The holding structure for holding the wirings A and B can be simplified. Further, the diaphragm mounting frame 151 that originally has the function of holding the outer peripheral edge of the diaphragm 152 can also be used as means for holding the connection wires A and B on the electromagnet fixing member side. Thereby, rationalization of the electromagnetic pump 100 is achieved.

[Other Embodiments]
In addition, this invention is not limited only to said embodiment, A various application and deformation | transformation can be considered. For example, each of the following embodiments to which the above embodiment is applied can be implemented.

  In the above embodiment, when the groove portion 155 including the two grooves of the first groove 155 a corresponding to the connection wiring A and the second groove 155 b corresponding to the connection wiring B is provided in the diaphragm mounting frame 151 of the diaphragm mechanism portion 150. However, the number and size of each groove can be appropriately set according to the number and shape of the connection wiring. A plurality of connection wirings can be held by one groove. Specifically, one groove having a groove width corresponding to the wiring diameter of one connection wiring is provided, and the groove has a groove depth corresponding to a plurality of connection wirings. Thereby, the structure which hold | maintains several connection wiring by one groove | channel is attained.

  Moreover, in the said embodiment, although the case where the resin-made groove part 155 was comprised with the resin material same as the diaphragm attachment frame 151 of the diaphragm mechanism part 150 was described, in this invention, the groove part 155 among the diaphragm attachment frames 151 is described. These parts can also be formed of a resin material different from that of the diaphragm mounting frame 151.

  In the above-described embodiment, the configuration in which the groove portion 155 for holding the connection wires A and B is provided in the resin diaphragm mounting frame 151 is described. However, in the present invention, instead of the groove portion 155 of the diaphragm mounting frame 151, or In addition to the groove portion 155, a groove portion that holds the connection wiring may be provided in the resin valve case body 112 that partitions the compression chamber 115.

  In addition, the connection wiring holding structure in the present invention is not limited to a groove-like portion such as the groove portion 155 shown in FIG. 2, and can be appropriately set as necessary. Here, a connection wiring holding structure other than the groove 155 shown in FIG. 2 will be described with reference to FIGS. The diaphragm mounting frames 251 to 651 shown in FIGS. 3 to 7 (corresponding to the “diaphragm mounting frame” in the present invention) are all made of the same resin material as the diaphragm mounting frame 251 shown in FIG. ing.

The diaphragm mounting frame 251 shown in FIG. 3 includes a protruding portion 251a that protrudes further upward from the upper surface, and a groove portion 255 is provided in the protruding portion 251a. The groove portion 255 includes a first groove 255a that is held in a state in which the connection wiring A is directly fitted, and a second groove 255b that is held in a state in which the connection wiring B is directly fitted. It corresponds to a “holding part”.
The diaphragm mounting frame 351 shown in FIG. 4 includes a protruding portion 351a that protrudes upward from the inner surface thereof, and a groove portion 355 is provided in the protruding portion 351a. The groove portion 355 includes a first groove 355a that is held in a state in which the connection wiring A is directly fitted, and a second groove 355b that is held in a state in which the connection wiring B is directly fitted. It corresponds to a “holding part”.
The diaphragm mounting frame 451 shown in FIG. 5 includes a protruding portion 451a that protrudes inward from the inner surface thereof, and a groove portion 455 is provided in the protruding portion 451a. The groove portion 455 includes a first groove 455a that is held in a state in which the connection wiring A is directly fitted, and a second groove 455b that is held in a state in which the connection wiring B is directly fitted. It corresponds to a “holding part”.
The diaphragm mounting frame 551 shown in FIG. 6 includes a hook-like portion 551a that protrudes inward on the upper surface thereof, and a concave portion 555 is provided in the hook-like portion 551a. The hook-shaped portion 551a has a function of directly hooking and holding the connection wiring A and the connection wiring B, and corresponds to a “holding portion” of the present invention.
The diaphragm mounting frame 651 shown in FIG. 7 includes a hook-like portion 651a that protrudes laterally on the upper surface, and a concave portion 655 is provided in the hook-like portion 651a. The hook-shaped portion 651a has a function of directly hooking and holding the connection wiring A and the connection wiring B, and corresponds to a “holding portion” of the present invention.
The configuration of the diaphragm attachment frames 251 to 651 shown in FIGS. 3 to 7 also has the same effect as the attachment frame 251 shown in FIG.

  Further, in the above-described embodiment, the electromagnetic pump 100 that sucks air as a fluid, compresses it to increase the pressure, and discharges it is described. However, the present invention is applied to the configuration of an electromagnetic pump that handles gases and liquids other than air. You can also

It is a top view of the electromagnetic pump 100 which is one Embodiment of the electromagnetic pump of this invention, Comprising: It is a figure which shows the cross-section of the principal part. It is a perspective view of the diaphragm attachment frame 151 of the diaphragm mechanism part 150 in FIG. It is a perspective view which shows a part of diaphragm attachment frame 251 of another embodiment. It is a perspective view which shows a part of diaphragm attachment frame 351 of another embodiment. It is a perspective view which shows a part of diaphragm attachment frame 451 of another embodiment. It is a perspective view which shows a part of diaphragm attachment frame 551 of another embodiment. It is a perspective view which shows a part of diaphragm attachment frame 651 of another embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Electromagnetic pump 101 ... Casing 110 ... Pump mechanism part 111 ... Electromagnet fixing plate 111a ... Nipping piece 112 ... Valve case body 113 ... Suction chamber 114 ... Discharge chamber 115 ... Compression chamber 116 ... Suction valve 117 ... Discharge valve 120,130 ... electromagnets 122, 132 ... electromagnet cores 123, 133 ... electromagnet bobbins 124, 134 ... electromagnetic coils 140 ... vibrators 141 ... connection shafts 150 ... diaphragm mechanism 151 ... diaphragm mounting frame 152 ... diaphragm 153 ... first center plate 154 ... Second center plate 155 ... groove 155a ... first groove 155b ... second groove A, B ... connection wiring

Claims (1)

A resin compression chamber for compressing the fluid;
A diaphragm that is elastically deformable so as to partition the compression chamber and perform a fluid suction operation and a discharge operation in the compression chamber;
A vibrator connected to the diaphragm and capable of driving the diaphragm in a suction operation direction and a discharge operation direction;
An electromagnet for applying a magnetic force for driving the diaphragm to the vibrator;
A metal electromagnet fixing member for fixing the electromagnet to the pump body;
Connection wiring for connecting the electromagnet to an AC power source;
A resin-made diaphragm mounting frame arranged in connection with the electromagnet fixing member in a state in which the outer peripheral edge of the diaphragm is held;
An electromagnetic pump having
An electromagnetic pump characterized in that at least one of the compression chamber and the diaphragm mounting frame includes a resin holding portion capable of directly holding the connection wiring in a region where the connection wiring extends. .

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