JPS59539Y2 - Lamp Tsukidenjibenyou Solenoid - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a solenoid having a built-in lamp for indicating power supply or energization in the housing.

Conventionally, a lamp mounting plate having a contactor on the bottom surface was superimposed on the terminal plate of the bulb body, and the lamp was energized through the contactor to blink to indicate whether or not the terminal on the terminal plate was energized. (For example, see Utility Model Publication No. 48-43624-i).

However, this type of device had the following drawbacks and lacked practicality.

(1) During the circuit from the above terminal board to the solenoid, even if there is a poor contact between the receptacle contact on the valve side and the plug pin on the solenoid side, the above lamp will light up and hide the above bad contact accident. , causing a major accident.

(2) When relocating the entire hydraulic system on-site, connecting and disconnecting the electric wires to the terminal board is often done by the on-site hydraulic technician (
Handled by a machine shop.

In this case, after connecting the electric wires to the terminal plate, the machine shop is reluctant to further restore the lamp mounting plate to proper alignment.

Sometimes I forget to install the small lamp mounting plate.

In that case, the lamp would not light up, so the aircraft would appear to be in trouble.

(3) When the lamp malfunctions, the transparent cover must be removed and the interior inspected.

At that point, voltage may be applied to the terminals of the terminal board.

In this case, even if the lamp is in a malfunction state, various parts on the lamp mounting plate are in a live state.

If you touch the lamp thinking it is out, you will get an electric shock.

Furthermore, as a part of the above structure, there is a device in which a lead wire is connected to the terminal portion of the lamp mounting plate (see, for example, Japanese Utility Model Publication No. 47-40723).

However, such a configuration is based on the above-mentioned Utility Model Publication No. 48-43624
As stated in the publication, it requires a lot of effort to connect, and in addition, the lighting device becomes complicated and large, which has the disadvantage of increasing the size.Furthermore, the disadvantages of (1) and (3) above can hardly be improved. There are also drawbacks that remain unaddressed.

I also considered putting the lamp inside the solenoid housing, but even if I just put the lamp inside the housing, the space inside would be small, and I would have to work to install the lamp and the plug pin holder that needs to be placed in the housing. There are problems with the mounting structure and the difficulties involved.

Therefore, one of the challenges of this proposal is to solve the drawbacks (1) to (3) above, and it will be easier to replace the electromagnetic coil when it burns out, and it will also be easier to inspect and repair. The present invention aims to provide a solenoid for a solenoid valve with a lamp.

-The characteristic structure is that it has a concave housing with an opening on the side that faces the valve body, and inside the housing there is a detachable coil, and depending on whether the coil is energized, the valve body In a solenoid for an electromagnetic valve, which is equipped with a movable iron core that moves forward and backward in the direction, a lamp holder equipped with a lamp is attached to the side wall near the opening in the housing,
A guide piece for supporting the plug holder is erected from the lamp holder toward the inside of the housing, and the tip of the plug holder to be prepared for old lessons can be attached to and removed from the receptacle. A plug pin is provided, and the plug pin is connected to the coil via a lead wire, and the plug holder is further provided with a fitting, and the fitting piece is detachably attached to the guide piece. In addition, the guide piece is provided with a plug pin contact that is positioned so that it can come into contact with the plug pin of the plug holder when the fitting piece of the plug holder is attached to the guide piece. It is an object of the present invention to provide a solenoid for a solenoid valve with a lamp, characterized in that a contact piece is attached thereto, and a lamp in the lamp holder is connected to the contact piece.

The drawings showing the embodiments of the present application will be described below.

In the solenoid A, 1 is a housing, 2 is a bottom plate facing the opening 1a of the housing 1 and attached to the self-pressure for attachment and detachment, 3 is a gasket, 4 is a fixed iron core, 5 is a coil, 6 is a lead wire, and 7 is a The movable iron core and 8 indicate bush pins, respectively.

Next, the lamp portion provided near the opening 1a of the housing 1 will be explained.

Reference numeral 9 denotes a lamp holder, which is made of a transparent material such as resin or glass fiber.

In this lamp holder 9, reference numeral 10 denotes a display window, which is formed thin to allow light to pass through easily, as shown in FIG.

Note that the lamp holder 9 may be formed of a non-transparent material, and only the display window portion 10 may be formed of a material that has excellent light properties, or may be formed thin so as to be transparent.

11 is a support pin, 12 is a positioning pin, 13 is a fixing pin, and 14 is a guide piece.

Next, reference numeral 15 denotes a connection spring, which is made of an elastic material such as phosphor bronze, and the plug pin contact piece 16 and the printed board contact piece 11 at both ends of the connecting spring are connected to the reciprocating plug pin and the copper foil of the printed board, respectively, to reduce electrical resistance. It's meant to be in contact.

Next, 18 is a printed board, 18a is its copper foil, and 19 is a lamp, in which commonly known current/light conversion elements such as neon bulbs, filament bulbs, and light emitting diodes are used.

20 is a protective resistor for the lamp 19, and the lamp 19 and the resistor 20 are connected to the copper foil 18a.

Note that 21 is a gasket, which is inserted so that there is no gap between the housing 1 and the lamp holder 9.

Next, the plug part will be explained.

22 is a plug holder, 23 is a plug pin that is inserted into and removed from the plug holder 22, and 24 is a holder 2.
2 is a holding piece that is placed over the head 23a of the plug pin 23, and 25 is a fitting piece that stands up from the holder 22, and is fitted to the guide piece 14 so that it can move freely in the direction of the arrow. It's a dress.

Next, in the valve B, 26 is a valve body, 21 is a valve pin, and 28 is a receptacle housing, which is made of an insulating material such as synthetic resin.

Reference numeral 29 represents a receptacle contact, and 30 represents a terminal screw, which is provided to connect a conducting wire to the contact 29.

31 is a conductor introduction hole bored in the body 26, 32 is a lid, and 33 is a fastener for fixing solenoid A to valve B.

Next, the assembly of the solenoid A having the above structure will be explained.

As shown in FIG. 3, in the lamp portion of each individually manufactured member, the connection spring 15 is first attached to the support pin 11 of the lamp holder 9, and the contact piece 16 is positioned using the positioning pin 12.

Next, a printed board 18 with a lamp 19 and a resistor 20 attached.
is fixed by inserting the fixing pin 13 into its through hole 18b and crushing its tip 13a.

Note that this fastening may be performed by a fastening means such as adhesion or press-fitting.

Also, the contact piece 1 connected to the copper foil 18a by this fastening
7 is usually processed by bending the printed board 1B toward the side on which the resistor 20 is attached.

On the other hand, in the plug portion, first, the lead wire 6 is connected to the head 23a of the plug pin 23 by a connecting means such as brazing or welding.

Next, the plug pin 23 is inserted into the plug holder 22, and the presser piece 24 is placed over the through hole 24a of the plug holder 22 by passing the fitting piece 25 therethrough.

The lamp part and plug part assembled as above are as follows.
A fitting piece 25 protruding from the holding piece 24 is fitted onto the guide piece 14 and integrated.

As a result, the contact piece 16 comes into contact with the plug pin 23, and the lamp 19 is also electrically connected to the plug pin 23.

Next, attach the gasket 21 to the notch 1 of the housing 1 in advance.
b, then attach the lamp holder 9 there, and also install the electromagnet consisting of the fixed core 4, coil 5, movable core 7, etc. inside the housing 1, and finally insert the plug part in the direction of the arrow as appropriate. Assembly is completed by moving and attaching the bottom plate 2.

Next, we will explain how to replace the electromagnet coil 5 when it breaks down due to burnout, disconnection, etc.

First, the bottom plate 2 is removed, and the lamp holder 9 with the plug holder 22 attached thereto and the electromagnet are gently pulled out from the housing 1.

Next, the plug holder 22 is removed from the lamp holder 9, and the electromagnet is taken out together with the plug holder 22.

For the electromagnet and plug holder 22 taken out, remove the pin 23 from the holder 22 by reversing the assembly procedure described above.
Meanwhile, the coil 5 is also removed from the fixed iron core 4.

After that, the replacement of the coil 5 is completed by using a new coil and assembling it in the complete reverse of the previous operation.

As described above, in the present invention, the lamp holder is located on the solenoid housing side, so for example, the entire hydraulic system may need to be rearranged at the site, and the electric wires connected to the contacts on the valve body side may be removed or Even when performing work such as connecting electric wires, the lamp holder is protected from being touched by the worker, and has the practical advantage of not being damaged by the worker.

On the other hand, this has the effect that the operator is not required to perform the two tasks of connecting electric wires and connecting the lamp as in the past, and can omit all of the work related to the lamp.

This is a practical effect that is especially welcome when the operator is a machine shop worker.

Furthermore, the present invention not only serves as a power indicator to indicate whether or not electricity is reaching the contact on the valve body side, but also to prevent poor contact between the receptacle (contact member) on the valve body side and the plug pin. The feature is that even if the power supply is normal, the status is immediately displayed by blinking.
There is also a practical effect in that accidents caused by poor conduction between the plug pin and the receptacle (contact) can be immediately discovered.

Furthermore, in the present invention, since the lamp holder 9 is provided on the side wall of the concave housing 1 near the opening, lamp replacement and inspection work is easy (without the difficulty of inserting one's hand deep into the housing). It has the advantage of being easy to use near the opening without any accompanying work.

In this civil engineering design, the lamp holder 9 is mounted near the opening of the housing 1, so the distance from this holder 9 to the planned location of the plug holder 22 is extremely close, and as a result, the above-mentioned lamp holder 9 By simply protruding the guide piece 14 for supporting the plug holder from the lamp holder 9 (without providing a separate structure for fixing the plug holder 22 to the wall), the plug holder 22 can be attached to the lamp holder 9.
This also has the advantage that the plug holder can be easily attached, detached, and positioned within a narrow housing during inspection.

Furthermore, in this invention, the fitting piece 25 on the plug holder side is attached to the side wall and is detachable from the guide piece 14 of the lamp holder 9, and the contact piece 16 for contacting the plug pin on the lamp Since the above-mentioned fitting piece 25 is attached to the above-mentioned guide piece 14 and comes into contact with the plug pin 23, if the coil in the housing is burnt out or disconnected, when replacing the coil 5, it is attached to the housing 1. When removing the coil 5 from the plug holder, the plug section can be completely separated mechanically and electrically from the lamp section by simply pulling out the fitting piece 25 from the guide piece 14. This allows the coil 5 to be immediately removed from the plug holder. 22, and when installing a new coil 5, just push the coil 5 into the housing and fit the fitting piece 25 into the guide piece 14 to attach the plug holder 22 and the lamp part. There are operational advantages in that the coil 5 can be connected at the same time and the coil 5 can be replaced with less effort.

[Brief explanation of drawings]

The drawings show an embodiment of the present application. Fig. 1 is a plan view showing the state in which the solenoid is attached to the valve, Fig. 2 is a partially cutaway front view of the same, and Fig. 3 is an exploded perspective view of the lamp part and the plug part. , Fig. 4 is a partially cutaway right side view showing the combined state of the lamp part and plug part, Fig. 5 is a cross-sectional view of only the lamp part taken along the line ■-■, and Fig. 6 is the same as Fig. 4. Partially broken bottom view. 1...Housing, 9...Lamp holder, 14.
...Guide piece, 19...Lamp, 22...Plug holder, 23...Fu. Lug pin, 25...fitting piece, 16...plug pin contact piece.

Claims (1)

[Scope of utility model registration request] It has a concave housing with an opening on the side that faces the valve body, and inside the housing is a removable coil and a movable housing that moves forward and backward toward the valve body depending on whether the coil is energized or not. In a solenoid for a solenoid valve having an iron core, a lamp holder equipped with a lamp is attached to the side wall near the opening of the housing, and a guide for supporting the plug holder is installed from the lamp holder toward the inside of the housing. The plug holder is provided with a plug pin whose tip can be freely inserted into and removed from the receptacle, and this plug pin is connected to the coil via a lead wire. The plug holder is further provided with a fitting piece, and the fitting piece is detachably attached to the guide piece, and the guide piece is attached to the guide piece. A contact piece for contacting the plug pin is attached, which is positioned so that it can contact the plug pin of the plug holder when the fitting piece of the plug holder is attached. A solenoid for a solenoid valve with a lamp, characterized in that the lamp in the lamp holder is connected.