JPH04131842U - relay circuit - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention relates to a relay circuit, and in particular, the present invention uses matrix-type switching to
It is characterized in that only 1 input signal is output from the output relay section. [Structure] The relay circuit according to the present invention has an input relay section.
(2), a plurality of input contacts (2a, 2b, 2d, 2e) for inputting a plurality of input signals (13 to 16), and each of the input contacts (2a, 2b, 2d, 2e). One pair of input contacts (2a, 2b and 2d,
2e) a plurality of first switching contacts (6, 7) that can be switched each time, switching contacts (2c, 2f) connected to each of the first switching contacts (6, 7), and each of the switching contacts (2c, 2f) and the second switching contact (2)
1), and when the first switching contacts (6, 7) and the second switching contacts (21) are switched, each of the input signals (13 to 16 ), only one input signal is outputted through the second switching contact (21).

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to relay circuits, and in particular, uses matrix-type switching to For outputting only one input signal out of several input signals from the output relay section. Concerning new improvements.

0002

[Conventional technology]

There are various relay circuits of this type that have been used in the past, but the most representative one is Regarding the general configuration, we will disclose the generally used configuration shown in FIG. I can do that. That is, what is indicated by the reference numeral 1 in FIG. This is a relay body consisting of a relay section 3, a third relay section 4, and a fourth relay section 5, and each relay Parts 2, 3, 4, and 5 include a pair of input terminals 2a and 2b, 3a and 3b, 4a and 4b, and 5a and 5b, and switching contact pieces 6, 7, 8, 9 and 9 connected to each input terminal 2a to 5b. and switching contacts 2c, 3c, 4c, and 5c connected to each switching contact piece 6 to 9, respectively. has been completed. The respective switching contacts 2c, 3c, 4c, 5c are commonly connected via a common connection line 10. and is connected to the measuring device 11. Each of the input contacts 2b, 3b, 4b, and 5b receives a first input signal from the object to be measured 12. No. 13, second input signal 14, third input signal 15 and fourth input signal 16 are respectively input. has been done. Therefore, by switching any of the switching contacts 6 to 9 of each relay section 2 to 5, Any one of the input signals 13 to 16 is input to the measuring device 11.

0003

[Problem that the idea aims to solve]

Conventional relay circuits were configured as described above, which caused the following problems. was there. In other words, by switching the switching contacts of each relay section, any one input signal can be If a pair of relays malfunctions at the same time, two inputs will be sent to the measuring device 11. The signals become short-circuited, making it impossible to measure, and two input signals to the object being measured. This would cause the relay and the object to be measured to be destroyed.

0004 This invention was made to solve the above problems, and in particular, Box-type switching allows only one input signal out of multiple input signals to be output. An object of the present invention is to provide a relay circuit that outputs from a power relay part.

[0005]

[Means to solve the problem]

The relay circuit according to the present invention is provided in the input relay section and receives multiple input signals. Multiple input contacts for input power, and switching for each pair of input contacts among the above input contacts. a plurality of possible first switching contacts; a switching contact connected to each first switching contact; and an output relay section having a second switching contact piece that is switched and connected to each of the switching contacts, When each of the first switching contacts and the second switching contacts are switched, each of the input signals A configuration in which only one of the input signals is outputted via the second switching contact. It is.

[0006] More specifically, each of the switching contacts is switched by two control signals. This is the configuration.

More specifically, the configuration is such that n relay units are controlled by n control signals, and 2 ⁿ input signals are controlled.

[0008]

[Effect]

In the relay circuit according to the present invention, an input relay section is used for each pair of input signals. Switched to any one input signal, and the switched input signals are further output Since the input relay section switches to one of the two, the input relay section may malfunction. Even if the input signals are short-circuited, only one input A signal can be output.

[0009]

【Example】

Hereinafter, preferred embodiments of the relay circuit according to the present invention will be explained in detail along with drawings. do. Note that the same or equivalent parts as in the conventional example will be described with the same reference numerals. FIG. 1 is a circuit diagram showing a relay circuit according to the present invention.

0010 In the figure, what is indicated by numeral 1 is an input relay section 2 and an output relay section. 20, and the input relay section 2 receives a signal from the object to be measured 12. A plurality of input contacts 2a connected corresponding to each input signal 13, 14, 15, 16, 2b, 2d, and 2e are provided.

[0011] Each of these input contacts 2a to 2d is a pair of input contacts 2a and 2b, 2d and 2e. In addition, each of the first switching contact pieces 6, 7 is configured so that a plurality of them can be switched and connected. The switching contacts 6, 7 are provided at the switching contacts 2c, 2f.

0012 Each of the switching contacts 2c, 2f is a pair of switching contacts of the output relay section 20. 20a, 20b, and each of these switching contacts 20a, 20b has an output. A second switching contact piece 21 provided at the force contact point 20c is connected to the switching contact, and this A measuring device 11 is connected to the output contact 20c.

[0013] Therefore, as shown in FIG. When switching to the contacts 2a and 2d, the first input signal 13 and the third input signal 15 are output. It is input to each switching contact 20a, 20b of the force relay section 20, and the second switching contact piece 21 is By switching the connection to the switching contact 20a, the first input signal 13 is connected to the measuring device 11. is input.

[0014] Therefore, each relay section 2, 20 forms a signal transmission path in a matrix form. Therefore, even if there is a failure in relay sections 2 and 20, each input signal 13 to 16 will be There will be no short circuit.

[0015]Also, in the above-mentioned embodiment, the case where switching control is performed by applying two control signals 30, 31 to each relay part 2, 20 has been explained, but by increasing the number of input signals, When the number of parts is increased, the number of input signals that can be selected by n control signals becomes 2 ⁿ .

[0016]

[Effect of the idea]

Since the relay circuit according to the present invention is configured as described above, it has the following effects. You can get results. In other words, since each relay section is connected in a matrix, it is possible to handle multiple input signals. The number of output signals for each relay is only one, and even if the relay malfunctions, each input signal There is no short circuit between the two, and destruction of the object to be measured can be reliably prevented.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing a relay circuit according to the present invention.

FIG. 2 is a circuit diagram showing a conventional relay circuit.

[Explanation of symbols]

2 Input relay section 2a Input contact 2b input contact 2d input contact 2e Input contact 2c switching contact 2f switching contact 6 First switching piece 7 First switching piece 13 Input signal 14 Input signal 15 Input signal 16 Input signal 20 Output relay section 21 Second switching piece 30 Control signal 31 Control signal

Claims (3)

[Scope of utility model registration request] 1. A plurality of input contacts (2a, 2b, 2d, 2e) provided in an input relay section (2) for inputting a plurality of input signals (13 to 16), and each of the input contacts ( a plurality of first switching contacts (6, 7) that can be switched for each pair of input contacts (2a, 2b and 2d, 2e) among the first switching contacts (2a, 2b, 2d, 2e); 6, 7), and a second switching contact (21) connected to each of the switching contacts (2c, 2f).
(20), each of the first switching contact pieces (6, 7) and the second switching contact piece (6, 7).
When switching the switching contact piece (21), each of the input signals (13 to
16), only one input signal is connected to the second switching contact (2).
1) A relay circuit characterized in that it is configured to be outputted via. 2. The relay circuit according to claim 1, wherein each of the switching contacts (6, 7, 21) is configured to be switched by two control signals (30, 31). [Claim 3] N relay sections (2, 20) are controlled by n control signals (30, 31), and 2 ⁿ input signals (13 to 1
6) The relay circuit according to claim 1, wherein the relay circuit controls: