JPS6110817A - Solid state timer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a solid state timer, and relates to a solid state timer whose time setting specifications can be changed.

[Conventional technology]

This type of timer has a configuration in which the oscillation period of the pulse, which is the time unit, is determined by a time constant formed by a capacitor and a resistor, and when the pulse is counted, a preset number of pulses is counted and output is output. . As a timer whose time setting specifications can be changed, for example, a dip switch in the time setting section for setting a pinoli counter can be set to ΔON or OFF, and the time range can be changed. -1
As described in Japanese Patent No. 38738, a configuration is known in which the volume of the time constant setting section can be connected in a detachable and replaceable manner.

[Problem that the invention seeks to solve]

The above conventional timers allow the time setting specifications to be changed and the timer can be installed flexibly in equipment, but the arrangement of the input terminals, output terminals, and time setting section is different, and the timer Installation that includes the surface and its surroundings requires a lot of space, and there is a problem that protrusions are formed on the top surface, left and right sides, or back of the timer's main case, and there is also a problem that the wiring board and input terminals and outputs inside the main case are formed. There was a problem in that the wiring for connecting terminals, time limit setting parts, etc. was complicated.

The present invention has been developed in view of the above points, and it is possible to miniaturize the timer, install it in a small space, make it possible to change the time setting specifications in a wide range of ways, and make wiring connections easy.
It provides a solid state timer that is easy to assemble.

(Means for Solving the Problems) The solid state timer of the present invention determines the oscillation period of the pulse, which is a unit of time, using a time constant setting element consisting of a capacitor and a resistor, and counts the pulses. A timer that outputs an output when a set number of pulses are counted, including a main body case consisting of a case body housing a timer circuit having a binary counter, and a lid body covering an opening of the case body, An input terminal and an output terminal, an operation part of the ditub switch connected to the binary counter, and a connection terminal of a time constant setting element are provided on the lid body, respectively, and are exposed to the outside, and a connection terminal is provided on the cartridge case on the lid body. In addition to installing an element terminal to be press-connected to the element terminal, at least one of a capacitor or a resistor as a time constant setting element is housed in this cartridge case, and the lead wires at both ends of this capacitor or resistor are connected to the element terminal. The time constant setting element is held in the cartridge case by connecting to the cartridge case, and the cartridge case is removably fixed to the lid by connecting the element terminal of the cartridge case to the connection terminal. It is something to do.

[Effect]

This solid state timer has a cartridge case equipped with a predetermined time constant setting element according to the time setting specifications, and is connected to the main body case by pressure welding connection between the connection terminal with the specified number on the lid and the element terminal provided on the cartridge case. Selectively attach the pulse to the desired time constant, set the time unit, and use the dip switch to determine the unit in which the pulses are counted.

When installing the timer, the lid functions as a substitute for installing input terminals, output terminals, and connection terminals, so the timer can be installed flexibly on equipment, and there are fewer restrictions on the installation location. During assembly, it is only necessary to connect the lid body and the wiring board inside the case body, which improves the ease of assembly.

〔Example〕

The configuration of an embodiment of the present invention will be explained with reference to FIGS. 1 to 5.

Reference numeral 1 denotes a main body case, which is composed of a case body 2 having an open top surface, and a lid body 3 that covers the top surface opening of this case body 2. A wiring board 4 is housed and held in the case body 2, and an IC timer circuit is formed on the wiring board 4. As shown in FIG. 5. A binary counter 6, an output control section 8 having a plurality of dip switches 7 connected to the binary counter 6, and a time adjustment section 10 having a capacitor 9 as a time constant setting element connected to the binary counter 6. It is already configured.

Next, the front panel 3 has a rectangular window hole 12 formed approximately in the center thereof to expose the operating portions 11 of the dip switches 7 to the outside. Also, the window hole 1 of this fitted body 3
On one side of 2, an input terminal 13, an input terminal 14, and an output terminal 15, which also serve as output terminals connected to the power supply adjustment section 5 of the timer circuit, are attached in parallel.
A fitting recess 16 is formed in a rectangular shape on the extending side of the window hole 12, and a pair of H1 plug-like faston type connection terminals 17 are provided in the fitting recess 16.

Next, 18t, an L car 1-ridge case is formed in the shape of a box with an open bottom surface, and a terminal holding portion 19 formed in this cartridge case 18 has a pair of female ridges that are press-connected to the connection terminals 11. Plug-like faston type element terminal 2
0 is accommodated, and this element terminal 2o is fixed to the holding portion 19 with a filler. Also, this pixel element terminal 20
Lead wires 22 at both ends of a resistor 21 of a time constant setting element housed in a cartridge case 18 and fixed with a filling material are connected. The cartridge case 18 is fitted into the fitting recess 16 of the lid 3 when the connection terminal 1
7 and the element terminal 20 are press-connected.

Then, with the wiring board 4 housed in the case body 2, the lid body 3
When attached to the case body 2, the operating portion 11 of the dip switch 7 is exposed through the window hole 12 of the lid body 3.

Note that a load 24 is connected to one input terminal 13 connected to the output section 23 of the power supply adjustment section 5 and the output terminal 15.

Next, the operation of this embodiment will be explained.

Select the cartridge case 18 incorporating the resistor 21 of the time constant setting element according to the set time, fit the cartridge case 18 into the fitting recess 16 of the container 3 of the main case 1, and connect the connecting terminal 17 and the element. The terminal 20 is connected by pressure contact.

A resistor 21 built into this cartridge case 18
The oscillation period of the timer circuit is set by the capacitance of , and the unit time T is set. Further, the dip switch 7 is switched by opening/closing the operating section 11 to switch the time range for counting pulses. For example, unit time T=RC
If the dip switch 7 is installed on the 6th side, the combination of In the case of 630 to 630 guns, the resistance value of the resistor housed in the cartridge case 18 may be increased by 10 times, and in this case, the minimum unit time is 10T.

When the timer circuit of the timer whose time has been set in this way is energized from the input terminals 13 and 14, a pulse with an oscillation period determined by the time constant of the capacitor 9 and the resistor 21 is generated, and this pulse is counted to generate a predetermined number of pulses. The timer circuit outputs an output at the count of , and the loads connected to the input terminal 13 and the output terminal 15 are time-controlled.

In this way, by connecting the car 1 to the lid case 18, each of which incorporates a resistor with a resistance value that allows a desired time constant to be obtained according to a desired time setting, to the lid 3 of the main case 1,
You can change the time setting range.

Incidentally, mounting holes 25 are formed vertically through the main body case 1.

Next, another embodiment will be described with reference to FIGS. 6 to 8.

In the embodiment described above, the connection terminal 17 provided on the lid 3 of the main body case 1 and the element terminal 20 provided on the cartridge 18 were configured with faston-type terminals, but a pair of pin-like connections were provided on the case body 2. A terminal 26.26 is provided, and the cartridge case 18 is provided with a cylindrical terminal 27.27 which is press-fitted to the pair of pin-shaped connection terminals 26.26.

Further, in the above embodiment, the cartridge case 18 is provided with the resistor 21 as a time constant setting element, but the resistor 21 is provided on the wiring board 4 inside the case body 2, and the cartridge case 18 is provided with the resistor 21 as a time constant setting element.
The capacitor 9 may be provided in the cartridge case 18, or the capacitor 9 and the resistor 21 may be provided in the cartridge case 18.

〔Effect of the invention〕

According to the present invention, the input terminal and the output terminal, the operation part of the dip switch connected to the binary counter, and the connection terminal of the time constant setting element are respectively exposed to the outside and installed on the lid of the main body case. The time constant setting element connected to the element terminal is housed in a cartridge case which is provided with an element terminal which is press-connected to the connection terminal provided on the body, so that a time constant corresponding to the desired time setting is formed. By selectively connecting the cartridge case equipped with a time constant setting element to the connection terminal and the element terminal by pressure contact, it is possible to set the time within a desired range, and the time setting can be varied over a wide range.
Moreover, since the input terminals, output terminals, dip switch operation parts, and connection terminals are exposed on the lid, there is no problem with the wiring to the timer even if the space is narrow when installing the timer on the equipment. As for the wiring, it is possible to improve the workability of connection wiring by simply connecting between the wiring base provided inside the case body and the lid body, and it is possible to reduce the size of the timer.

[Brief explanation of drawings]

FIG. 1 is a solid state diagram showing one embodiment of the present invention.
A perspective view of the timer, FIG. 2 is a perspective view with the cartridge case removed, FIG. 3 is a sectional view of the same, FIG. 4 is a sectional view of the cartridge case, FIG. 5 is a bottom view of the same, and FIG. The figure is a perspective view of another embodiment of the solid state timer with part of the cartridge case removed;
FIG. 7 is a sectional view of the cartridge case, FIG. 8 is a top bottom view of the same, and FIG. 9 is a circuit diagram of the timer. 1. Main case, 2. Case body, 3. Lid body, 6.
・Binary counter, 7...Dip switch, 9...
Capacitor as time constant setting element, 11...Dip switch 7 operating unit, 13.14...Input terminal, 15.
・Output terminal, 17... Connection terminal, 18... Cartridge case, 20... Element terminal, 21... Resistor as time constant setting element, 22... Lead wire,

Claims (1)

[Claims] (1) A main body case consisting of a case body housing a timer circuit having a binary counter, and a lid body covering an opening of the case body; the lid body has an input terminal and an output terminal; The operation part of the connected DIP switch and the connection terminal of the time constant setting element are respectively exposed to the outside, and the terminal for this element is installed in a cartridge case that is provided with an element terminal that is press-connected to the connection terminal provided on the lid body. A time constant setting element having lead wires at both ends connected thereto is housed and held, and the cartridge case is removably fixed to the lid body by connecting an element terminal of the cartridge case to the connection terminal. solid state timer.