CN109148222B - Industrial control electromagnetic relay integrating socket function - Google Patents

Abstract

The invention provides an industrial control electromagnetic relay integrating socket functions, which comprises a relay functional unit. The relay functional unit comprises a bracket, a coil, an iron core arranged in the coil and an armature bracket plate. An armature and at least one movable spring are fixedly arranged on the armature support plate, a movable contact is arranged on each movable spring, and the contacts are connected with the stationary contacts. The coil is connected to the control circuit of the relay. The relay also comprises a base, wherein a control circuit wiring terminal, a controlled circuit input terminal used for wiring an input circuit and a controlled circuit output terminal connected with an output circuit are arranged on the base; the static contact is directly connected with the wiring of the output terminal of the controlled circuit through a static contact conducting plate; the movable reed is directly connected with the input terminal of the controlled circuit through the movable reed conducting strip. The arrangement of the wiring terminal is utilized, the total volume of the relay is reduced, the manufacturing cost is greatly reduced, and the strict limitation of the position relation between the relay functional unit and the base is relieved.

Description

Industrial control electromagnetic relay integrating socket function

Technical Field

The invention relates to the field of industrial automation control, in particular to an industrial control electromagnetic relay integrating socket functions.

Background

The relay is a device for controlling larger current by smaller current, and plays a role of automatic regulation and conversion circuit in the circuit. Industrial electromagnetic relays are often applied to the field of modern electrical automation, and have strict requirements on safety and stability, size, industrial cost and the like of the relay. The functional unit of electromagnetic relay is composed of iron core, coil, armature and spring connected to armature, and its structure also contains movable contact, normally open and normally closed static contacts, and its control system contains low-voltage control circuit and high-voltage working circuit. The armature is linked with the movable contact, and the movable contact is influenced by the tension of the spring and is contacted with the normally closed static contact under the condition that the control circuit is not electrified. When a user applies a certain voltage to two ends of the coil, the control circuit is electrified, and the armature iron can be attracted to the iron core against the pulling force of the spring under the action of electromagnetic force attraction, so that the movable contact connected with the armature iron is driven to be connected with the normally-open and static contact. When the coil is powered off, the electromagnetic attraction force is also eliminated, and the armature and the movable contact return to the original positions.

Generally, the control circuit includes a control circuit input terminal and a control circuit output terminal connected to the coil; the working circuit comprises a controlled circuit input terminal connected with the movable contact and a controlled circuit output terminal connected with the static contact. The relay also comprises a base and a wiring board arranged on the base, wherein the controlled circuit output terminal, the controlled circuit input terminal, the control circuit output terminal and the like of the relay functional unit are connected to the contact pins at the bottom of the functional unit through wires, are connected with the wiring board on the base through the contact pins, and are connected with an external circuit through the wiring board on the base.

Such structures often occupy a large space, for which reason in the industry a large spatial location must be reserved for relay installation. Moreover, the addition of fixing facilities in production, the installation of circuit boards on the base and the like consume a large amount of production cost, the assembly and processing difficulty of the relay is improved, and the corresponding labor cost is increased. Furthermore, the positional relationship between the relay and the base is strictly required, and the use environment, the assembly mode, the service life and the like of the relay are limited. In reality, under severe working conditions, the connection relation between the relay and the base is easy to loose or even break due to welding or plugging and other modes, so that the use of the relay is affected.

Disclosure of Invention

The invention provides the industrial electromagnetic relay which saves cost and can be smoothly used in severe working condition environments. The relay not only greatly reduces the total volume of the relay and the shell and the production cost and the production capacity of parts, but also can relieve the strict limitation of the traditional industry on the circuit connection relation between the relay and the base.

An industrial electromagnetic relay integrating socket functions comprises a relay functional unit. The relay functional unit comprises a bracket, a coil arranged on the bracket, an iron core arranged in the coil and an armature support plate movably arranged on the bracket and positioned above the iron core. An armature and at least one movable spring are fixedly arranged on the armature supporting plate, and the movable spring and the armature are in linkage fit. Each movable contact is arranged on each movable contact spring. The relay functional unit also comprises stationary contacts which are matched with the movable contacts in an on-off way and correspond to the movable contacts in number. In addition, a return spring is arranged between the support and the armature, and the coil is connected to a control circuit of the relay. On this basis, the relay still includes the base, is provided with the binding post that is used for the wiring on the base. The wiring terminal comprises a control circuit wiring terminal connected with the control circuit, a controlled circuit input terminal connected with an input circuit of the controlled circuit, and a controlled circuit output terminal connected with an output circuit of the controlled circuit; the static contact is directly connected with the wiring of the output terminal of the controlled circuit through a static contact conducting plate; one end of the movable contact on the movable reed is directly connected with the input terminal of the controlled terminal through the movable reed conducting strip.

Compared with the similar relay, the relay provided by the invention is different in arrangement of the wiring terminal. The relay is provided with a wiring terminal for directly wiring an external circuit, and in general, the relay used in daily life is provided with a plurality of wires for connecting the circuit, wherein the wires are tools for connecting the internal circuit of the relay with the external circuit outside the relay. However, the leads of a typical relay cannot be directly connected to an external circuit. The lead is connected to the wiring board of the relay base by a pin, an inserting piece or other conductor devices and then by welding, inserting and the like. Thereafter, the terminal block on the relay base is also mated with the receptacle and thereby connected to the external circuit.

In the invention, the terminal of the relay plays a role of connecting the internal circuit and the external circuit, so that the external circuit can be directly connected with the internal circuit of the relay. In the traditional relay, an internal circuit of the relay is connected with a circuit of a base, and then the circuit on the base is connected with an external circuit to form three-section connection, wherein the damage failure of any connecting point can lead to the integral failure of the relay; in the invention, the relay internal patch terminal is connected with the external circuit in two sections, and the connection point is reduced by half, so that the risk of fault circuit breaking is greatly reduced.

The base used in the invention is only used as a supporting bottom surface, no wiring board or inserting piece and other parts are arranged, and any lead or electromagnetic equipment is not required to be installed, so that the cost of the relay and the process difficulty of assembly are greatly reduced. Furthermore, after the action of the housing is reduced, the thickness and volume of the housing are also reduced. Therefore, the whole volume of the relay is reduced, the production efficiency can be greatly improved, the manufacturing cost can be reduced, and the relay has high economic benefit in the field of production and processing. Furthermore, in use, as the volume of the relay is reduced, the volume of the required installation room is also reduced, and this improvement has been an important advance in some industrial production environments where the internal facilities are extremely compact and narrow.

In addition, the traditional relay and the external circuit are communicated through a circuit board or an inserting sheet on the base, so that strict requirements are placed on the relative positions of the relay functional unit and the base. The loosening and displacement of the relay functional unit and the base can seriously affect the smooth connection of the internal circuit of the relay. In a severe industrial environment, the vibration and shaking of the relay can seriously affect the position relationship between the base and the functional unit of the relay, so that a circuit is disconnected, which is also often an important reason for shortening the service life of the relay. In the invention, the relay functional unit is directly connected with the external circuit through the wiring terminal, so that the requirement on the position relation between the relay functional unit and the base is relaxed, the service life of the relay in a severe environment is greatly prolonged, and the cost is saved and the process difficulty is reduced from another angle.

The invention is further arranged that the movable reed conducting strip comprises a flexible conducting strip.

In a general relay, the movement of the movable reed can certainly cause the movement of a conductor connected to the movable reed. Such movement may on the one hand result in an influence of the communication between the movable spring and the external circuit and on the other hand may also result in a direct breaking of the conductor on the movable spring. Therefore, when the conductor sheet is provided with the flexible material, the action of the connecting end of the movable reed and the conductor sheet can not cause the free end to displace, and the conductor sheet can not be disconnected.

The invention is further arranged in a laminated manner between the conductor plates, wherein the conductor plates comprise connecting ends, and the connecting ends of each conductor plate are connected with the movable reed to form a parallel circuit.

After adopting such a structure: on one hand, the whole durability and the firmness of the movable reed binding post are enhanced; on the other hand, even if one or a plurality of conductor sheets are broken, the use effect of the whole wiring terminal is not affected. In addition, the conductors arranged in multiple layers can pass through large current, meanwhile, the conductors are good in flexibility, and the action of the actuating reed cannot be restrained, so that the performance of a product is affected.

The invention is further arranged that the body sheet material comprises a flexible copper sheet.

The copper material is widely applicable in the field of electric power transportation, is easy to obtain, is low in cost and good in quality, and cannot increase excessive consumption of production cost when being used for a thin copper sheet. In addition, copper has good ductility, and the copper sheet with half thickness and even thinner is not difficult to manufacture, so the copper sheet has small production and processing difficulties and is suitable for mass production in industry.

Preferably, the conductor sheet is a flexible copper sheet, and the movable contact spring binding post comprises two layers of overlapped flexible copper sheets. The double-layer flexible thin copper sheet is a preferable scheme after comprehensively considering cost, production process difficulty and effect.

The invention is further arranged that the shell comprises a base and an upper cover which is in snap fit with the base, and a terminal connecting hole for the external circuit to be connected is formed in the upper cover at a position corresponding to the wiring terminal; the base is provided with a mounting column for mounting the wiring terminal at a position corresponding to the wiring terminal; the base is provided with a groove for installing the relay functional unit. In order to smoothly connect the wiring terminal and the external circuit, a terminal connecting hole for the external circuit to be connected and a mounting column for mounting are arranged at the position corresponding to the wiring terminal.

The invention is further provided that a locking hole is further formed in the upper cover at a position corresponding to the wiring terminal, and the locking hole is internally connected with a locking bolt through threads. The bolt can ensure the stability of connection between an external circuit and the wiring terminal.

The invention is further arranged that the static contact comprises a normally closed static contact and a normally open static contact, wherein the normally closed static contact is connected with the movable contact when the control circuit is not electrified, and the normally open static contact is connected with the movable contact when the control circuit is electrified.

Preferably, the relay functional unit is provided with a plurality of movable reeds and movable contacts thereof in parallel, and the positions corresponding to the movable contacts are provided with the same number of stationary contacts.

The invention is further arranged that the control circuit wiring terminal is connected with an indicator lamp in parallel. The indicator lamp can indicate when the circuit works, and plays a role in indicating the working state.

The invention is further provided that the upper cover is movably connected with the test button at the position corresponding to the movable reed, and the test button can realize the opening and closing between the movable contact and the stationary contact when the test button is displaced. By pressing the test button, the functional effect of the relay is manually tested, and whether the controlled circuit is correct or not is verified, so that wiring errors are avoided. At the same time can detect itself whether the coil is operating properly.

The invention is described in more detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of a relay functional unit in the present invention;

FIG. 2 is a schematic diagram of a relay sub-assembly of the present invention;

fig. 3 is a schematic diagram of a relay functional unit in embodiment 1 of the present invention;

FIG. 4 is a schematic diagram of the input terminal of the controlled circuit of the present invention;

FIG. 5 is a schematic view of a double-layer flexible conductor sheet according to the present invention;

fig. 6 is a schematic diagram of a relay function unit in embodiment 2 of the present invention;

FIG. 7 is a schematic diagram of the base of the relay enclosure of the present invention;

FIG. 8 is a schematic view of the connection between the locking hole in the housing and the locking bolt in the present invention;

FIG. 9 is a schematic diagram of an indicator light and a test button according to the present invention.

The reference numerals are: the relay function unit 1, the housing 2, the base 21, the partition 210, the upper cover 22, the movable contact spring 3, the movable contact 31, the controlled circuit input terminal 83, the movable contact spring conductive piece 310, the stationary contact 40, the stationary contact conductive piece 410, the normally closed stationary contact 41, the normally open stationary contact 42, the normally closed stationary contact wiring terminal 411, the normally open stationary contact wiring terminal 421, the spring 5, the iron core 6, the coil 61, the armature 7, the armature support plate 70, the wiring terminal 8, the mounting post 80, the control circuit wiring terminal 81, the controlled circuit output terminal 82, the terminal connection hole 9, the locking hole 91, the locking bolt 92, the conductor piece 11, the connection end 111, the free end 112, the support 13, the groove 15, the indicator lamp 16, and the test button 17.

Detailed Description

The present invention will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

An industrial control electromagnetic relay integrating socket functions comprises a relay functional unit 1 and a shell 2. The housing 2 includes a base 21 for support and an upper cover 22 snap-fitted to the base 21.

The relay functional unit 1 is internally provided with a bracket 13, a coil 61 is arranged in the bracket, and an iron core 6 passes through the coil 61 and is arranged on the bracket 13. An armature support plate 70 is arranged above the iron core 6 and corresponds to the position of the iron core 6, an armature 7 is arranged on the armature support plate 70, and the armature 7 is connected with a movable spring 3 and a spring 5. One end of the spring 5 is connected with the bottom of the relay function unit 1, one end of the spring 5 is connected with the armature 7, the spring 5 gives the armature 7 a reset pulling force, and the reset pulling force can overcome the electromagnetic force generated by the iron core 6 and the coil 61 when the control circuit is electrified. The armature 7 is pulled by the spring 5 with one end towards the bottom of the relay function unit 1 and the other end is tilted upwards. The movable spring 3 also tilts with the armature 7, and the movable contact 31 of the movable spring 3 is at this tilting end.

Preferably, the relay functional unit 1 is further provided with a static contact 4, and the static contact 4 comprises a normally open static contact 42 and a normally closed static contact 41. When no current is supplied, the movable contact 31 on the movable contact spring 3 communicates with the normally closed stationary contact 41. A normally open stationary contact 42 is provided below the position corresponding to the normally closed stationary contact 41. When a user applies a certain voltage to two ends of the iron core 6, the electromagnetic force applied to the armature 7 overcomes the tensile force of the spring 5, and the armature 7 is attracted to the direction where the bottom of the relay is located. At this time, the movable spring 3 moves in the same direction as the armature 7, and the movable contact 31 is rotationally connected to the normally open stationary contact 42.

The relay according to the invention differs from similar relays in the arrangement of the connection terminals 8. As shown in fig. 1, the relay is provided with a connection terminal 8 for directly connecting an external circuit, and the connection terminal 8 replaces the function of a base of a part of the relay which is commonly used. The connection terminal 8 includes a controlled circuit input terminal 83, a controlled circuit output connection terminal 82, and a control circuit connection terminal 81. The control circuit connection terminal 81 is connected to the coil 61 and the external circuit to form a closed circuit, that is, a control circuit of the present relay. The controlled circuit output terminal 82 includes a normally closed stationary contact terminal 411 connected to the normally closed stationary contact 41, and a normally open stationary contact terminal 421 connected to the normally open stationary contact 42. The output connection terminals 82 of the controlled circuits are connected with the input terminals 83 of the controlled circuits and then communicated with an external circuit, so that the controlled circuits, namely the working circuits of the relays, are formed.

In general, conventional relays also have wires for connection, which are also used as tools for circuit communication. However, the wires of a typical relay cannot be directly connected to an external circuit, but instead are connected to the terminal block of the relay base 21 via pins or some other conductive device. Thereafter, the wiring board on the relay base 21 is also required to be mated with the receptacle and thereby communicate with the external circuit.

In the present invention, the connection terminal of the relay allows the external circuit to be directly connected to the internal circuit of the relay unit 1. The base 21 of the shell 2 is only used as a supporting bottom surface, no wiring board or inserting piece and other parts are arranged, and any lead or electromagnetic equipment is not required to be installed, so that the cost and the assembly process difficulty are greatly reduced. The arrangement is such that this relay integrates part of the footer function, and is therefore referred to as a relay integrating the socket function.

As shown in fig. 2, in order to match the connection terminal 8 with the external circuit, a terminal hole 9 for the external circuit to be connected is formed in the upper cover 22 at a position corresponding to the connection terminal 8. The assembly method of the relay is that the manufactured relay functional unit 1 is arranged in the groove 15 of the base 21, the working procedures of wiring between the base 21 and the relay functional unit 1 and the like are omitted, and then the upper cover 22 is sleeved on the relay functional unit 1 and buckled on the base 21. The relay is installed and then used directly in production.

In order to describe the specific arrangement of the connection terminals 8, a preferred embodiment is provided below.

Example 1:

as shown in fig. 3, the control circuit connection terminal 81 and the controlled circuit input terminal 83 are provided on the same side of the relay function unit 1, which is referred to as a side; the normally closed stationary contact terminal 411 and the normally open stationary contact terminal 421 are provided on the other side of the relay function unit 1, which is referred to as the B side. For convenience of description of the specific orientation in this embodiment, the orientation in which the bottom of the relay function unit 1 is located is referred to as a lower side, and the orientation corresponding to the bottom of the relay function unit 1 is referred to as an upper side.

Such a terminal 8 arrangement is rational and logical. The normally closed stationary contact 41 and the normally open stationary contact 42 are originally arranged on the same side of the relay functional unit 1, and are arranged one above the other. For this, the normally closed stationary contact terminal 411 is disposed above the normally open stationary contact terminal 421. In contrast, the control circuit connection terminal 81 is connected to the coil 61 and may be disposed at the bottom of the a side of the relay function unit 1, and the controlled circuit input terminal 83 is disposed above the control circuit connection terminal 81.

The arrangement can smoothly lead out the wiring terminal 8 under the condition of reasonably utilizing space, and the circuit confusion is not caused.

Preferably, the housing 2 of the relay includes an upper cover 22 and a base 21, and in order to match the relay as described above, terminal connection holes 9 are provided in the upper cover 22 at positions corresponding to the terminals 8 of the terminals 8, and these terminal connection holes 9 are passages through which external circuits are connected to the terminals. The base 21 is provided with a mounting post 80 corresponding to the terminal 8 for mounting the terminal 8, and the mounting post 80 can also be used for helping the communication between the terminal and an external circuit. The base 21 is also provided with a recess 15 for mounting the relay function unit 1.

In an electromagnetic relay, a movable reed 3 is displaced up and down due to an external control circuit, and a new movable reed conductive sheet 310 is proposed in order to make the connection between a controlled circuit input terminal 83 connected to the movable reed 3 and the movable reed 3 smoother.

In the known general relay, the movable spring 3 is connected to the wiring board of the relay base 21 by a wire or the like, so long as the wire has a sufficient length, the movement of the movable spring 3 will not affect the connection between the wire and the movable spring 3. However, in the present invention, the connection by the wire and the terminal block has been abandoned, and the terminal 8 directly connected to the external circuit is provided on the movable contact spring 3 instead. These terminals 8 are relatively fixed in position within the relay function unit 1 because they are directly connected to an external circuit. And the movable reed 3 is fixedly connected with the movable reed conducting plate 310. Thus, the movement of the movable reed 3 will undoubtedly cause the movement of the movable reed conductive piece 310. Such movement may on the one hand result in the communication between the movable contact spring plate 310 and the external circuit being affected, and on the other hand may also result in the movable contact spring plate 310 breaking directly.

In order to avoid the above technical problems, as shown in fig. 4, the present invention innovates the movable contact spring conductive sheet 310. The above technical problem occurs because the reed conductive sheet 310 is fixedly connected with the movable reed 3 and the external circuit at the same time during the use, and the movement of the movable reed 3 causes the movement between the reed conductive sheet 310 and the external circuit. For this reason, the movable contact spring conductive piece 310 is provided as a flexible conductive piece 11, and the end of the conductive piece 11 connected to the movable contact spring 3 is called a connection end 111, and the end connected to an external circuit is called a free end 112. Because the conductor piece 11 is made of flexible material, the action of the connecting end 111 of the movable contact spring 3 and the conductor piece 11 does not cause the free end 112 to displace, and the conductor piece 11 is not broken.

However, the flexible conductor piece 11 has low solidity of the whole material and is easily damaged by external force. The conductor piece 11 is not broken when the movable contact spring 3 moves, but is bent. With the increase of the number of times of use, the flexible conductor piece 11 may also break due to the multiple bending, shortening the service life of the relay.

To increase the service life of this relay, the relay is provided with movable reed conductive pieces 310 as a plurality of flexible conductor pieces 11. The flexible conductor plates 11 are stacked layer by layer, and the connecting end 111 of each conductor plate 11 is connected with the movable reed 3, so that a plurality of parallel circuits are formed. In this way, the controlled circuit input terminal 83 between the movable reed 3 and the external circuit is communicated through the multi-layer flexible conductor sheet 11, so that the overall durability and firmness of the movable reed conducting sheet 310 are enhanced; on the other hand, even if one or a plurality of the conductor pieces 11 are broken, the overall use effect is not affected. In addition, the conductor plates 11 arranged in multiple layers also have the function of current diversion, and the service life of the relay is further prolonged.

Preferably, the conductor piece 11 comprises a flexible copper sheet. The copper material is widely applicable in the field of electric power transportation, is easy to obtain, is low in cost and good in quality, and the copper sheet is used as the conductor sheet 11, so that the invention meets the aim of saving cost. Although the relay needs to be stacked by a plurality of layers of copper sheets, the ductility of copper is good, and the manufacturing of copper sheets with half thickness and even thinner copper sheets is not difficult. After the thickness of the copper sheet is reduced, the flexibility degree is greatly improved, and the copper sheet with good flexibility and enough quantity can be obtained by completely using copper with the same quality as the original copper. Therefore, the cost is not increased, and the production and processing difficulty is low, so that the method is suitable for mass production in industry.

Preferably, as shown in fig. 5, the controlled circuit input terminal 83 comprises two layers of flexible copper sheets stacked together. After considering the balance of processing difficulty, production cost and gain, the inventor selects two layers of stacked flexible copper sheets as conductors on the input terminal 83 of the controlled circuit, which is a high cost performance implementation mode.

Preferably, the housing 2 includes a base 21 and an upper cover 22 snap-fitted to the base 21, and a terminal hole 9 for accessing an external circuit is provided on the upper cover 22 at a position corresponding to the terminal 8. The base is provided with a groove 15 for mounting the relay function unit.

Preferably, the relay function unit 1 is provided with a plurality of movable springs 3 and movable contacts 31 thereof in parallel, and the same number of stationary contacts 40 are provided corresponding to the positions of the movable contacts 31.

On the basis of the above-described scheme, the overall configuration and internal layout of the relay are planned, and example 2 is provided below.

Example 2:

as shown in fig. 6, the relay function unit 1 includes a square bracket 13, a coil 61 is provided on the bracket 13, and an iron core 6 is provided in the coil 61 to pass through. The bracket 13 is also provided with an armature bracket plate 70 which is movably arranged on the bracket 13 and is positioned above the iron core, and the armature bracket plate 70 is connected with the armature 7. The bottom of the coil 61 is connected with a control circuit wiring terminal 81, and the control circuit wiring terminal 81 is arranged at the bottom of the A side of the body. The side A of the body is fixedly connected with a spring 5, the spring 5 is connected with an armature 7, and the armature 7 is arranged right above the iron core 6. The armature support plate 70 is also connected with four movable reeds 3, the A side of each movable reed 3 is connected with a controlled circuit input terminal 83, and the controlled circuit input terminal 83 comprises flexible copper sheets which are stacked on two sides and form a plurality of parallel circuits.

The normally closed stationary contact terminal 411 and the normally open stationary contact terminal 421 are provided on the other side of the relay function unit 1, which is referred to as the B side, which is opposite to the a side. In correspondence with the movable contact 31, four normally closed stationary contacts 41 and four normally open stationary contacts 42 are provided on the B side in total. I.e. having the same number of normally closed stationary contact terminals 411 and normally open stationary contact terminals 421. The normally closed stationary contact terminal 411 and the normally open stationary contact terminal 421 are also provided with a stationary contact conductive sheet 410. The relay further comprises a housing 2, the housing 2 being divided into an upper cover 22 and a base 21. The upper cover 22 is provided with a terminal connecting hole 9 corresponding to the position of the wiring terminal 8, and the base 21 is provided with a groove 15 for placing the relay function unit 1 and a mounting column 80 for mounting the wiring terminal 8.

The housing 2 of the relay comprises an upper cover 22 and a base 21. Preferably, a spacer 210 is provided on the base 21, as shown in fig. 7, and the spacer 210 separates the connection terminals 8 from the connection terminals 8, so as to avoid confusion in circuit connection.

Preferably, as shown in fig. 8, a locking hole 91 is further formed in the upper cover 22 at the position of the terminal, and the locking hole 91 is connected with a locking bolt 92 in a threaded manner. When an external circuit is connected to the terminal, the wiring terminal 8 and the external circuit are locked by the bolts 92, so that the connection feasibility of the circuit is ensured.

Preferably, the stationary contact is connected in parallel with an indicator light 16. The indicator light 16 can indicate when the circuit is in operation, and plays a role of prompting.

Preferably, the upper cover 22 is connected with the test button 17 at a position corresponding to the movable reed 3, and the test button can slide up and down on the upper cover 22. When the test button 17 is pressed downwards by hand, the test button 17 presses the movable reed 3 to move downwards, so that the movable reed 3 and the stationary contact 4 are opened and closed. The user can manually test the functional effect of the relay by pressing the test button 17 so as to avoid accidents caused by faults.

The relay can be installed on the common relay on the market through the guide rail or through the screw. The installation mode is various, and can be applied to different working environments.

The present embodiment is only for explanation and not limitation of the present invention, and one skilled in the art can make modifications to the present embodiment without creative contribution as required after reading the present specification, but is protected by patent law within the scope of the claims of the present invention.

Claims (7)

1. The utility model provides an industrial electromagnetic relay integrating socket functions, includes relay functional unit (1), relay functional unit (1) including support (13), coil (61) set up on support (13), iron core (6) and movable mounting on support (13) and be located armature mounting plate (70) above the iron core in coil (61), fixed armature (7) and at least one movable reed (3) of being provided with on armature mounting plate (70), movable reed (3) and armature (7) linkage cooperation are provided with movable contact (31) on every movable reed (3); the relay functional unit (1) also comprises stationary contacts (40) which are matched with the movable contacts (31) in an on-off manner and correspond to the movable contacts in number; a return spring (5) is arranged between the bracket (13) and the armature (7); the coil (61) is connected to the control circuit of the relay, characterized in that: the relay further comprises a base (21), wherein a wiring terminal (8) for direct wiring is arranged on the base (21), and the wiring terminal (8) comprises a control circuit direct wiring terminal (81) connected with a control circuit, a controlled circuit input terminal (83) directly connected with an input circuit of a controlled circuit and a controlled circuit output terminal (82) directly connected with an output circuit of the controlled circuit; the static contact (40) is directly connected with the output terminal (82) of the controlled circuit in a wiring way through a static contact conducting plate (410); one end of a non-movable contact (31) on the movable reed (3) is directly connected with the input terminal (83) of the controlled circuit through a movable reed conducting plate (310);

the relay further comprises an upper cover (22) in snap fit with the base (21), a terminal connecting hole (9) for directly connecting an external circuit is formed in the position, corresponding to the wiring terminal (8), of the upper cover (22), a mounting column (80) for mounting the wiring terminal (8) is arranged in the position, corresponding to the wiring terminal (8), of the base (21), and a groove (15) for mounting the relay functional unit (1) is further formed in the base (21); a locking hole (91) is formed in the upper cover (22) corresponding to the binding post (8), and the locking hole (91) is internally connected with a locking bolt (92) through threads;

the movable reed conducting strip (310) comprises a flexible conducting strip (11).

2. The industrial controlled electromagnetic relay with integrated socket function according to claim 1, wherein: the conductor plates (11) are arranged in a laminated mode, the conductor plates (11) comprise connecting ends (111), and the connecting ends (111) of each conductor plate (11) are connected with the movable reed (3) to form a parallel circuit.

3. The industrial controlled electromagnetic relay with integrated socket function according to claim 1, wherein: the conductor sheet (11) is a flexible copper sheet, and the control circuit input terminal (83) comprises two layers of stacked flexible copper sheets.

4. The industrial controlled electromagnetic relay with integrated socket function according to claim 1, wherein: the static contact (40) comprises a normally closed static contact (41) and a normally open static contact (42), wherein the normally closed static contact (41) is connected with the movable contact (31) when the control circuit is not electrified, and the normally open static contact (42) is connected with the movable contact (31) when the control circuit is electrified.

5. The industrial controlled electromagnetic relay with integrated socket function according to claim 4, wherein: the relay functional unit (1) is provided with a plurality of movable reeds (3) and movable contacts (31) thereof in parallel, and the positions corresponding to the movable contacts (31) are provided with the same number of stationary contacts (40).

6. The industrial controlled electromagnetic relay with integrated socket function according to claim 1, wherein: an indicator lamp (16) is connected in parallel to the direct wiring terminal (81) of the control circuit.

7. The industrial controlled electromagnetic relay with integrated socket function according to claim 1, wherein: the upper cover (22) is movably connected with a test button (17) at a position corresponding to the movable reed (3), and the movable contact (31) and the stationary contact (40) are opened and closed when the test button (17) is displaced.