CN213843860U - High-low level general relay module - Google Patents
High-low level general relay module Download PDFInfo
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- CN213843860U CN213843860U CN202022588720.8U CN202022588720U CN213843860U CN 213843860 U CN213843860 U CN 213843860U CN 202022588720 U CN202022588720 U CN 202022588720U CN 213843860 U CN213843860 U CN 213843860U
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Abstract
The utility model discloses a general type relay module of high-low level for the isolation of as numerical control system or PLC output signal is enlargied. The circuit board integrates an external control signal interface, an external control signal public end, a double-switch diode, a resistor, a light-emitting diode, a fly-wheel diode, a relay and a relay contact output interface. The two double-switch diodes are utilized to build the rectifying circuit and are connected to the two sides of the relay coil, so that the action of the relay can be controlled when an external control signal is high level or low level, meanwhile, the fly-wheel diode plays a role in protecting the relay coil, and the action indicating function of the relay is realized through the resistor and the light-emitting diode. The utility model provides a relay module external control signal need change the problem of polarity to the emitting diode that has the polarity requirement and freewheeling diode when being high level or low level.
Description
Technical Field
The utility model relates to a general type relay module of high-low level for as the isolation amplifier module that numerical control system, PLC output high level signal or low level signal all can use.
Background
The relay module integrates and serializes a single low-power relay in the electric control cabinet, reduces intermediate wiring links, improves the performance of products, and is an updated product of the original single relay. But because current numerical control system or PLC are because of brand or design scheme separately, make IO output signal high-low level not unified, in addition current relay module need increase external circuit, in order to guarantee relay module's protection and visualization to the relay coil, need plus irreversible freewheeling diode of polarity and emitting diode, just so make the current relay module producer in market will be according to customer's external control signal high-level or low level's requirement, change the operation to corresponding freewheeling diode and emitting diode polarity, thereby lead to the relay module can not sell as general type product.
Disclosure of Invention
The utility model aims at providing a general type relay module of high-low level replaces current relay module, utilizes the electronic circuit scheme, combines the double diode characteristic to satisfy the requirement that all can use when relay module control signal is high level or low level.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model discloses a by the external control signal interface, the external control signal common port, two switch diodes, resistance, emitting diode, freewheeling diode, a relay, relay contact output interface, the circuit board constitutes, wherein two switch diode pins 1 and 2 correspond the pin with another two switch diodes and are connected, and receive the relay coil both sides respectively with two junctions, freewheeling diode positive pole is received to two switch diode pin 1 nodes, pin 2 nodes is the freewheeling diode negative pole that continues, two switch diode pin 1 nodes connect resistance, establish ties and connect the emitting diode negative pole, pin 2 nodes connects the emitting diode positive pole, utilize the double diode characteristic, the design of a high low level general type relay module has been realized.
Drawings
Fig. 1 is an electrical schematic diagram of a single relay control of the present invention;
fig. 2 is a circuit layout diagram of the present invention;
fig. 3 is a schematic diagram of an alternative conventional universal relay module of the present invention;
in the attached fig. 2:
1. an external control signal interface; 2. an external control signal common; 3. a dual switch diode; 4. a resistance; 5. a light emitting diode; 6. a freewheeling diode; 7. a relay; 8. a relay contact output interface; 9. a circuit board.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
the utility model provides a general type relay module of high-low level, characterized by: a circuit is designed, the characteristics of double-switch diodes are utilized, and the circuit is built by combining a resistor, a fly-wheel diode and a light-emitting diode device, so that the purpose that the external control signal of a relay module is high level or low level and can control a corresponding relay can be realized.
The utility model discloses a general type relay module of high low level comprises external control signal interface (1), external control signal common port (2), two switching diode (3), resistance (4), emitting diode (5), freewheeling diode (6), relay (7), relay contact output interface (8), circuit board (9). Pins 1 and 2 of the double-switch diode (3) are connected with corresponding pins of the other double-switch diode, and the two connecting points are respectively connected to the two sides of the relay coil; the node of a pin 1 of the double-switch diode (3) is connected to the anode of the fly-wheel diode, and the node of the pin 2 is connected with the cathode of the fly-wheel diode; the joint of the pin 1 of the double-switch diode (3) is connected with the resistor (4) in series and connected to the cathode of the light-emitting diode, and the joint of the pin 2 is connected with the anode of the light-emitting diode.
The utility model discloses a general type relay module of high-low level, wherein external control signal inserts through external control signal interface (1), insert external control signal public line to external control signal public end interface (2) simultaneously, combine above-mentioned circuit, when external control signal is the high level, high level signal gets into from two switch diode (3) pin 3, through pin 2 to relay coil one end, again by the relay coil other end to another two switch diode (3) pin 1, at last through pin 3 to the public end, accomplish the signal return circuit, and control relay coil.
As shown in fig. 1, the electrical principle components of the present invention are connected as follows: pins 1 and 2 of the double-switch diode (3) are connected with corresponding pins of the other double-switch diode, two connecting points are respectively connected to two sides of the relay coil, when an external control signal is at a high level, a high level signal enters from the pin 3 of the double-switch diode (3), passes through the pin 2 to one end of the relay coil, passes through the other end of the relay coil to the pin 1 of the other double-switch diode (3), and finally passes through the pin 3 to a public end, so that loop control is completed.
The node of the pin 1 of the double-switch diode (3) is connected to the anode of the fly-wheel diode, and the node of the pin 2 is connected with the cathode of the flow diode, so that the effect of consuming the reverse electromotive force of the relay coil is achieved, and the relay coil is protected.
The joint of the pin 1 of the double-switch diode (3) is connected with the resistor (4) in series and connected to the cathode of the light-emitting diode (5), and the joint of the pin 2 is connected with the anode of the light-emitting diode (5) to play a role in visualizing the on-off of the relay coil.
As shown in fig. 3, the conventional universal relay module component arrangement, in which the external control signal common terminal wiring terminal needs to be marked, such as 0V or 24V, to prevent the signal from being connected incorrectly, thereby burning out the circuit component; a patch freewheeling diode is arranged between the relays, so that the difficulty of replacing elements after the signals are connected in a wrong way is increased; traditional general type relay module still is favorable to the connector component to assemble, and is same because the component is arranged, leads to relay module size extension, no longer is suitable for to current integration, miniaturized control regulator cubicle.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention, and the technical content of the present invention as claimed is fully set forth in the claims.
Claims (2)
1. The utility model provides a general type relay module of high-low level, characterized by: the LED lamp is composed of an external control signal interface (1), an external control signal common terminal (2), a double-switch diode (3), a resistor (4), a light-emitting diode (5), a freewheeling diode (6), a relay (7), a relay contact output interface (8) and a circuit board (9), wherein pins 1 and 2 of the double-switch diode (3) are connected with corresponding pins of the other double-switch diode, two connecting points are respectively connected to two sides of a relay coil, the node of the pin 1 of the double-switch diode (3) is connected to the anode of the freewheeling diode, the node of the pin 2 is connected to the cathode of the freewheeling diode, the node of the pin 1 of the double-switch diode (3) is connected with the resistor (4) in series to the cathode of the light-emitting diode (5), and the node of the pin 2 is connected to the anode of the light-emitting diode (5).
2. The high-low level general relay module according to claim 1, wherein: the external control signal is accessed through an external control signal interface (1), and simultaneously, an external control signal common line is accessed to an external control signal common end (2), when the external control signal is at a high level, a high level signal enters from a pin 3 of a double-switch diode (3), passes through the pin 2 to one end of a relay coil, passes through the other end of the relay coil to the pin 1 of the other double-switch diode (3), and finally passes through the pin 3 to the common end, so that loop control is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022588720.8U CN213843860U (en) | 2020-11-11 | 2020-11-11 | High-low level general relay module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022588720.8U CN213843860U (en) | 2020-11-11 | 2020-11-11 | High-low level general relay module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213843860U true CN213843860U (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022588720.8U Active CN213843860U (en) | 2020-11-11 | 2020-11-11 | High-low level general relay module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213843860U (en) |
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2020
- 2020-11-11 CN CN202022588720.8U patent/CN213843860U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230621 Address after: 276800 Shaoxing Road, Development Zone, Rizhao City, Shandong Province Patentee after: Shandong Rizhao shansen numerical control equipment Co.,Ltd. Address before: 277500 jujube science college, No. 888, Xueyuan Road, Tengzhou City, Zaozhuang City, Shandong Province Patentee before: Shandong Zaoke Intelligent Equipment Research Institute Co.,Ltd. |
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| TR01 | Transfer of patent right |