JP4842228B2 - Electric valve unit device - Google Patents

Description

  The present invention relates to an electric valve unit device that adjusts the amount of gas supplied to a plurality of gas burners.

  For example, in a gas stove in which a plurality of gas burners are provided on the top plate and a grill burner is provided in the grill cabinet, it is necessary to adjust the heating power by individually increasing or decreasing the amount of gas supplied to each gas burner or grill burner. In this case, a valve device may be provided in each gas supply path for supplying gas to each gas burner or grill burner. However, in the configuration in which a plurality of valve devices are mounted in this way, the mounting space of the valve device becomes large, Not desirable.

Therefore, there is known one in which each valve device is integrally formed as a valve unit body (for example, see Patent Document 1). In this device, since the opening degree of each valve device is increased or decreased by a motor rather than manually, a plurality of motors for each valve device are attached to the valve unit main body.
JP 2002-31336 A (FIGS. 3 and 5)

  In the device described in the above-mentioned patent document, the valve device is integrally formed as a valve unit main body, but a configuration is adopted in which the motors are fixed to the valve unit main body one by one. For this reason, fixing work such as screwing must be performed for each motor, and the rotation axis of the motor must be fixed in a predetermined position at the time of fixing. For this reason, a large number of man-hours are required to fix one motor, and a very large number of man-hours are required until all the motors are fixed.

  Then, this invention makes it a subject to provide the electric valve unit apparatus which can perform the operation | work which fixes a motor to a valve unit main body simply in view of said problem.

  In order to solve the above problems, an electric valve unit device according to the present invention has a valve unit body integrally formed with a valve device interposed in each of a plurality of gas supply paths, and is connected to each of the valve devices. In the electric valve unit device in which a motor for increasing or decreasing the amount of gas passing through the valve device is fixed to the valve unit main body, each motor is formed as one motor unit separate from the valve unit main body. Each motor is connected to the valve device by fixing the motor to the valve unit main body, and the positioning of the motor unit relative to the valve unit main body is provided at one motor connecting portion and at a position other than the motor connecting portion. It is characterized in that it is configured to be performed in a part.

  If the motor connected to each valve device is formed in one motor unit, all the motors can be connected to the valve device by attaching the motor unit to the valve unit main body. Here, it is necessary to provide positioning portions in at least two places for positioning the motor unit. Therefore, one of the plurality of motor connecting portions is used as a positioning portion, and the other positioning portion is provided other than the motor positioning portion.

  Specifically, the motor unit is constituted by an integral plate-like motor unit plate and a motor fixed to the motor unit plate, and a connecting portion of one motor is formed in a cylindrical shape, and a valve The unit body is provided with a cylindrical connection receiving portion into which the cylindrical connection portion is inserted, and positioning is performed between the inner peripheral surface of the connection receiving portion and the outer peripheral surface of the connection portion, and a straight line passing through the center of the connection portion. A long elongate hole is formed in either the motor unit plate or the valve unit main body, and a protrusion inserted into the elongate hole is provided on the other, so that positioning is performed between the elongate hole and the protrusion. You may comprise. The elongated hole only needs to have a protruding portion inserted therein, and therefore, the elongated hole does not necessarily have to be a through hole and may have a bottomed groove shape.

  As is apparent from the above description, the present invention can improve the positioning accuracy because the position of the motor can be directly positioned by using the connecting portion of one motor as the positioning portion. However, if two or more connecting portions are used as positioning portions, positioning cannot be performed when the relative positional accuracy of both connecting portions is reduced, and the pitch between the motors deviates from the pitch of the valve unit on the valve unit main body side. It will be. In extreme cases, the motor unit cannot be attached to the valve unit body as a result. Therefore, another positioning part is provided in addition to the connecting part. For example, the connecting portion is restricted to be formed in a cylindrical shape, but the shape can be selected relatively freely if it is not a connecting portion. It can be made into a shape that can be positioned only in the direction. For this reason, the motor unit can be reliably attached to the valve unit main body in a state where the motor unit is accurately positioned.

  Referring to FIG. 1, reference numeral 1 denotes a gas stove according to the present invention, and a top plate 11 is provided with three gas burners, a large burner 11a, a middle burner 11b, and a small burner 11c. Further, the gas stove 1 is provided with a grill 12, and although not shown, a pair of upper and lower grill burners are provided in the grill 12.

  Referring to FIG. 2, an electric valve unit is provided that supplies gas to each of these burners and adjusts the heating power by individually controlling the gas supply amount. The valve unit main body 2 of the electric valve unit is provided with an inlet 21 through which gas flows, and supply ports 2a, 2b, 2c, and 2d that supply gas to each gas burner.

  A main valve 22 is provided downstream of the inlet 21, and when the main valve 22 is closed, the supply of gas to each burner is stopped. Further, the gas that has passed through the main valve 22 is branched into a gas supply path connected to each burner. Valve devices 3a, 3b, 3c, and 3d are interposed in the gas supply paths, respectively. Each valve device incorporates an electromagnetic safety valve 31 that is kept open when the burner is ignited, and a thermal power adjustment unit 32 that adjusts the thermal power by increasing or decreasing the amount of gas supplied. A motor 4 is connected to the thermal power adjustment unit 32, and the gas flow rate passing through the thermal power adjustment unit 32 is increased or decreased by the motor 4. A governor 30 is provided in the valve device 3d.

  Referring to FIG. 3, the valve unit main body 2 is formed in a plate shape by aluminum die casting so that the valve devices are integrated in a state in which the valve devices are arranged in parallel. A pair of leg plates 3L is attached so that the valve unit body 2 is attached below the top plate 11 in a substantially horizontal state. Reference numeral 40 denotes a motor unit, and each of the four motors 4 is made of resin and attached to an integral motor unit plate 4P as shown. And it attaches to the lower surface of the valve unit main body 2 in the state sub-assembled beforehand as the motor unit 40 in this way.

  Connecting members 4a, 4b, and 4c are attached to the four motors 4, respectively, but each motor 4 is connected to the valve unit main body 2 by a connecting member 4a at the left end and a long hole 41 provided in the motor unit plate 4P in the drawing. It was made to position with respect to. Then, screws are inserted through the three through holes 42 in the positioned state, and the motor 4 is fixed to the valve unit main body 2.

  Referring to FIG. 4, on the lower surface of the valve unit main body 2, enclosure walls 23 a, 23 b, and 23 c that surround the coupling members are provided at coupling portions to which the coupling members 4 a, 4 b, and 4 c are coupled, When the motor unit 40 is connected to the valve unit main body 2, each connecting member is inserted into the surrounding wall. However, the height of the surrounding walls 23a and 23b at both ends was made higher than that of the central two surrounding walls 23c. Therefore, the four connecting members are not inserted into the enclosure wall at the same time, but the connecting members 4a and 4b at both ends are first inserted into the enclosure walls 23a and 23b, and then the remaining two connecting members 4c are enclosed. It was inserted into the wall 23c. Thus, since it is inserted in two stages, the connecting operation can be performed smoothly. Then, the inner peripheral surface of the surrounding wall 23a into which the connecting member 4a functioning as the positioning portion is inserted is machined so that the connecting member 4a is inserted into the surrounding wall 23a without a gap.

  In a state where the connecting member 4a is inserted into the surrounding wall 23a, positioning in the swinging direction around the connecting member 4a is not performed. Therefore, the boss 24 formed in the valve unit body 2 is inserted into the long hole 41 provided in the motor unit plate 4P, thereby positioning in this swinging direction. The elongated hole 41 is formed on an imaginary line L that passes through the swing center of the connecting member 4a and has a longitudinal direction along the imaginary line L. Therefore, even if the distance between the surrounding wall 23a and the boss 24 is slightly longer or shorter, the boss 24 is not inserted into the elongated hole 41. Therefore, the valve unit can be reliably positioned with the motor unit 40 accurately positioned. It can be attached to the main body 2. In the above embodiment, a long hole is provided on the motor unit plate 4P side and a boss is provided on the valve unit main body 2 side. Conversely, a boss is provided on the motor unit plate 4P side and long on the valve unit main body 2 side. A hole may be provided.

  In addition, this invention is not limited to an above-described form, You may add a various change in the range which does not deviate from the summary of this invention.

The figure which shows the structure of one embodiment of this invention Block diagram showing gas flow External view of electric valve unit Side view showing motor positioning Top view showing motor positioning

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Gas cooker 2 Valve unit main body 2a Supply port 3a, 3b, 3c, 3d Valve apparatus 4 Motor 4a, 4b, 4c Connecting member 11 Top plate 23a, 23b, 23c Enclosure wall 24 Boss 40 Motor unit 41 Elongated hole 4P Motor unit plate

Claims (2)

  A valve unit interposed in each of a plurality of gas supply paths has a valve unit body integrally formed, and a motor that is connected to each of the valve devices and adjusts the amount of gas passing through the valve device is adjusted by a valve. In the electric valve unit device fixed to the unit body, each motor is formed as one motor unit separate from the valve unit body, and each motor is connected to the valve device by fixing this motor unit to the valve unit body. In addition, the electric valve unit device is configured such that the positioning of the motor unit with respect to the valve unit main body is performed by a positioning portion provided at one motor connecting portion and a position other than the motor connecting portion. .   The motor unit is composed of an integral plate-shaped motor unit plate and a motor fixed to the motor unit plate, and a connecting portion of one motor is formed in a cylindrical shape, and the cylinder is formed in the valve unit body. A cylindrical connection receiving portion into which the connecting portion is inserted, positioning is performed between the inner peripheral surface of the connection receiving portion and the outer peripheral surface of the connection portion, and a long line is formed along a straight line passing through the center of the connection portion. An elongated hole is formed in one of the motor unit plate and the valve unit main body, and a protrusion is inserted into the elongated hole on the other, and positioning is performed between the elongated hole and the protrusion. Item 4. The electric valve unit device according to Item 1.

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