CN210349721U

CN210349721U - Relay and relay module

Info

Publication number: CN210349721U
Application number: CN201921682354.3U
Authority: CN
Inventors: 刘翔鸿; 刘兆基
Original assignee: Foshan Zhongxie Electric Co ltd
Current assignee: Foshan Zhongxie Electric Co ltd
Priority date: 2019-10-07
Filing date: 2019-10-07
Publication date: 2020-04-17
Anticipated expiration: 2029-10-07

Abstract

Relay and relay module, relate to relay technical field, the relay includes first contact pin, two contact pins of second contact pin, still include the transfer lead, the first end of transfer lead forms first group wiring point with first contact pin, transfer lead second end forms second group wiring point with second contact pin, the first end of transfer lead is used for connecting the zero line of commercial power, first contact pin is used for connecting the live wire of commercial power, transfer lead second end is used for connecting the zero line wiring end of load, second contact pin is used for connecting the live wire wiring end of load. The wiring logic is clear, the wiring mode is simple, and errors are not easy to occur. The relay module comprises a shell which covers the periphery of the part, from the periphery to the pins, of the part, from which the insulating protection layer is removed, of the lead, and the shell is formed by injection molding, so that the volume of the relay module is smaller, and the sealing performance is better.

Description

Relay and relay module

Technical Field

The invention relates to the technical field of relays.

Background

The relay is a widely used electronic device, and generally has a contact pin and a coil pin, wherein the coil pin is connected to a coil of the relay for inputting a control current, the contact pin is externally connected to a load, the control current is input to the coil of the relay from the coil pin, and electromagnetic induction is generated to close a contact connected to the contact pin, so that a passage is formed between the two contact pins.

As shown in fig. 1, when the relay 5 and the load 6 are assembled, the

coil pins

1 and 2 are connected with a controller for inputting control current, one of the two

corresponding contact pins

3 and 4 is connected with a live wire of the commercial power, the other is connected with a live wire terminal of the load 6, and then a zero line terminal of the load 6 is connected with a zero line of the commercial power. As can be seen from fig. 1 and 3, the conventional relay has a complicated wiring manner, and the wiring logic is relatively disordered and is prone to error.

In addition, when the relay leaves the factory, pins (including contact pins and coil pins) of the wiring are exposed outside, the relay body is not subjected to waterproof sealing treatment, and the relay is used in most electric appliances and is not required to be subjected to waterproof sealing treatment. However, when the mirror is used, because the installation environment steam of the mirror is heavier, and the short circuit and other electrical faults are easy to occur without waterproof sealing treatment, the relay module is usually used by sleeving a plastic shell on the relay used on the mirror to form the relay module. The plastic shell is not specially designed for the relay, the size is generally larger, and because the opening is provided with the cover, the sealing performance of the joint is poor, and the waterproof and dustproof effects are not ideal. With the trend of light and thin products and miniaturization of devices, the disadvantage of large volume of the conventional relay module assembled by the method is gradually shown.

Disclosure of Invention

The invention provides a relay which is simple in wiring mode, clear in wiring logic and not prone to errors in assembly with a load.

The invention provides a relay module which is small in size and good in sealing performance.

The current relay mode of connection of analysis, so the mode of connection is complicated, and wiring logic is chaotic, because the relay only controls the break-make between live wire and the load, consequently only needs the live wire in the commercial power to load via the relay, and zero line lug connection load need not be via the load, has just so appeared current relay mode of connection, and the commercial power is not had been connected to the load, need connect the relay again, still need distinguish the live wire zero line, makes mistakes easily.

In order to achieve the purpose of marketing, the invention provides the following technical scheme.

The relay comprises two contact pins including a first contact pin and a second contact pin and further comprises a transfer lead, wherein a first end of the transfer lead and the first contact pin form a first group of wiring points, a second end of the transfer lead and the second contact pin form a second group of wiring points, a first end of the transfer lead is used for connecting a zero line of commercial power, the first contact pin is used for connecting a live wire of the commercial power, a second end of the transfer lead is used for connecting a zero line wiring end of a load, and the second contact pin is used for connecting a live wire wiring end of the load. This is technical scheme 1.

According to the relay, the switching lead is added, the zero line of the commercial power is also connected to the load through the relay through the switching lead, the load is only connected with the relay and is not directly connected with the commercial power, one pin of the power input end of the load is not connected with the relay, the other pin of the power input end of the load is connected with the commercial power, the live wire and the zero line of the commercial power are both connected with the relay, the live wire terminal and the zero line terminal of the load are both connected with the relay, the wiring logic is clear, the wiring mode is simpler, and errors are not easy to occur.

The relay based on the technical scheme 1 further comprises two contact leads, namely a first contact lead and a second contact lead, wherein one end of the first contact lead is connected with a first contact pin, and the other end of the first contact lead and the first end of the switching lead form the first group of wiring points; one end of the second contact lead is connected with the second contact pin, and the other end of the second contact lead and the second end of the switching lead form the second group of wiring points. This is technical scheme 2.

Based on the relay in the technical scheme 2, the switching lead has a first fixing position and a second fixing position, the first fixing position is close to the first end of the switching lead, and the first fixing position is fixed with the first contact lead in an insulating mode; the second holding location is proximate the second end of the transfer lead, and the second holding location is secured in insulated relation to the second contact lead. This makes the two sets of connection points easier to distinguish. This is technical scheme 3.

Based on technical scheme 2 relay, the second group of wiring point be equipped with the live wire terminal and the zero line terminal assorted second connector of load, second contact lead wire and switching lead wire second end all are connected the second connector. The second connector is arranged, so that the second connector can be conveniently and quickly connected with a load. This is technical scheme 4.

Based on technical scheme 2 relay, first group of wiring point be equipped with the live wire terminal and the first connector of zero line terminal assorted of commercial power, first connector is all connected with the first end of switching lead wire to first contact lead wire. The second connector is arranged, so that the electric appliance can be conveniently and quickly connected with the mains supply. This is technical means 5.

The relay module comprises the relay according to claim 1, and further comprises two contact leads, namely a first contact lead and a second contact lead, wherein one end of the first contact lead is connected with the first contact pin, one end of the second contact lead is connected with the second contact pin, the contact leads are provided with an insulating protective outer layer, the relay module further comprises a shell, the shell covers the relay, the shell covers the joint of the contact pin and the contact lead, the shell covers at least the part, connected with the contact pin, of one end of the contact lead, which is removed from the insulating protective outer layer, and the shell is subjected to injection molding. This is technical scheme 6.

The lead is arranged on the pin of the relay to realize the connection of the relay and other devices, the outer shell is formed on the periphery of the relay in an injection molding mode, the outer shell is tightly attached to the relay, the size cannot be increased meaninglessly, and the relay module is miniaturized. Injection moulding's shell cladding relay and pin junction, the shell has sealed interface and gap everywhere of relay, and the leakproofness is better to improve waterproof dustproof effect. The lead wire needs to get rid of partly insulating protective layer in order to be connected with the pin of relay at the link, and injection moulding's shell still cladding has got rid of the outer part of insulating protective layer to the lead wire to guarantee that the conductor is not exposed, thereby guarantee waterproof dustproof sealed effect.

Based on technical scheme 6 relay module, the affiliated shell is low temperature low pressure injection moulding. The traditional high-temperature high-pressure injection molding mode can damage the electrical structure inside the relay, so that the yield of the relay can be improved by adopting the low-temperature low-pressure injection molding mode. This is technical means 7.

Drawings

FIG. 1 is a wiring diagram of a conventional relay;

FIG. 2 is a wiring diagram of the relay of the present invention;

FIG. 3 is a schematic diagram of the wiring logic of a prior art relay;

FIG. 4 is a schematic diagram of the wiring logic of the relay created by the present invention;

fig. 5 is a schematic structural diagram of the relay module according to the present invention.

The reference numerals include:

coil pins

1, 2;

a first contact pin 3, a second contact pin 4, a relay 5, and a load 6;

a housing 7, a pin covering portion 71;

the lead wires 8 are switched.

Detailed Description

The invention is described in detail below with reference to specific embodiments.

As shown in fig. 2, the relay 5 provided by the invention includes two contact pins, namely a first contact pin 3 and a second contact pin 4, and further includes a transfer lead 8, a first end of the transfer lead 8 and the first contact pin 3 form a first group of connection points, a second end of the transfer lead 8 and the second contact pin 4 form a second group of connection points, the first end of the transfer lead 8 is used for connecting a zero line of a commercial power, the first contact pin 3 is used for connecting a live line of the commercial power, the second end of the transfer lead 8 is used for connecting a zero line terminal of a load 6, and the second contact pin 4 is used for connecting a live line terminal of the load 6.

Combine fig. 2 and fig. 4, through increasing switching lead 8, the zero line of commercial power also arrives load 6 again via relay 5, load 6 consequently only need connect relay 5 can, no longer need the lug connection commercial power, relay 5 is connected to a foot of the power input end that load 6 also can not appear, the commercial power is again connected to a foot, relay 5 is all connected with the zero line to the live wire of commercial power, relay 5 is all connected with the zero line wiring end to the live wire wiring end and the zero line wiring end of load 6, the wiring logic is clear, the mode of connection is also simpler, be difficult to make mistakes.

In this embodiment, the relay 5 further includes two contact leads, namely a first contact lead and a second contact lead, one end of the first contact lead is connected to the first contact pin 3, and the other end of the first contact lead and the first end of the adapting lead 8 form the first group of connection points; one end of the second contact lead is connected with the second contact pin 4, the other end of the second contact lead and the second end of the switching lead 8 form the second group of wiring points, the switching lead 8 is provided with a first fixing position and a second fixing position, the first fixing position is close to the first end of the switching lead 8, and the first fixing position and the first contact lead are fixed in an insulating mode; the second holding position is close to the second end of the changeover lead 8, which is held insulated from the second contact lead. This makes the two sets of connection points easier to distinguish. Further, the second set of terminals are provided with second connectors for mating with the live and neutral terminals of the load 6, and the second contact leads and the second end of the transfer lead 8 are each connected to the second connectors. The second connector is provided to enable convenient and quick connection to the load 6. The first group of wiring points are provided with first connectors matched with a live wire wiring end and a zero wire wiring end of commercial power, and the first connectors are connected with the first ends of the first contact lead wires and the first ends of the switching lead wires 8. The second connector is arranged, so that the electric appliance can be conveniently and quickly connected with the mains supply.

As shown in fig. 5, the invention provides a relay module, which comprises a housing 7 and the above-mentioned relay (covered by the housing 7, not shown in the figure), the housing 7 covers the relay, the housing 7 has a pin covering portion 71, the pin covering portion 71 covers the connection part of the contact pin and the contact lead, and covers at least the part of one end of the contact lead connected with the contact pin, which is removed from the insulating protective outer layer, and the housing 7 is injection molded. The lead is arranged on the pin of the relay to realize the connection of the relay and other devices, the shell 7 is formed on the periphery of the relay in an injection molding mode, the shell 7 is tightly attached to the relay, the size cannot be increased unnecessarily, and the relay module is miniaturized. Injection moulding's 7 cladding relays of shell and pin junction, the shell 7 has sealed interfaces and gaps everywhere of relay, and the leakproofness is better to improve waterproof dustproof effect. The lead wire needs to get rid of partly insulating protective layer in order to be connected with the pin of relay at the link, and injection moulding's shell 7 still coats the part of getting rid of the outer layer of insulating protective of lead wire to guarantee that the conductor is not exposed, thereby guarantee waterproof dustproof sealed effect.

Further, the housing 7 is injection molded at low temperature and low pressure. The traditional high-temperature high-pressure injection molding mode can damage the electrical structure inside the relay, so that the yield of the relay can be improved by adopting the low-temperature low-pressure injection molding mode.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The relay comprises two contact pins, namely a first contact pin and a second contact pin, and is characterized by further comprising a transfer lead, wherein a first end of the transfer lead and the first contact pin form a first group of wiring points, a second end of the transfer lead and the second contact pin form a second group of wiring points, a first end of the transfer lead is used for connecting a zero line of commercial power, the first contact pin is used for connecting a live wire of the commercial power, a second end of the transfer lead is used for connecting a zero line wiring end of a load, and the second contact pin is used for connecting a live wire wiring end of the load.

2. The relay according to claim 1, further comprising two contact leads, a first contact lead and a second contact lead, wherein one end of the first contact lead is connected with the first contact pin, and the other end of the first contact lead and the first end of the transfer lead form the first group of connection points; one end of the second contact lead is connected with the second contact pin, and the other end of the second contact lead and the second end of the switching lead form the second group of wiring points.

3. The relay according to claim 2, wherein the transfer lead has a first holding position adjacent the first end of the transfer lead and a second holding position, the first holding position being secured in isolation from the first contact lead; the second holding location is proximate the second end of the transfer lead, and the second holding location is secured in insulated relation to the second contact lead.

4. The relay according to claim 2, wherein the second set of terminals are provided with second connectors for mating with the live and neutral terminals of the load, the second contact lead and the second end of the transfer lead being connected to the second connectors.

5. The relay according to claim 2, wherein the first set of terminals have first connectors for mating with live and neutral terminals of the utility power, the first contact lead and the first end of the transfer lead being connected to the first connectors.

6. The relay module is characterized by comprising the relay as claimed in claim 1, and further comprising two contact leads, namely a first contact lead and a second contact lead, wherein one end of the first contact lead is connected with the first contact pin, one end of the second contact lead is connected with the second contact pin, the contact leads are provided with insulating protective outer layers, the relay module further comprises a shell, the shell covers the relay, the shell covers the joint of the contact pins and the contact leads, the shell at least covers the part, with the insulating protective outer layers removed, of one end, connected with the contact pins, of the contact leads, and the shell is formed by injection molding.

7. The relay module as claimed in claim 6, wherein said housing is injection molded at low temperature and low pressure.