Miniature alternating current (AC) control relay of rectification circuit

Abstract

The utility model relates to the technical field of relays, in particular to a small alternating current (AC) control relay of a rectifying circuit, which comprises a machine base, an electromagnetic coil and an iron core, the electromagnetic coil and the iron core are arranged on the machine base, the iron core is arranged in the electromagnetic coil in a penetrating mode, and pins are further arranged on the lower side of the machine base. One end of the pin is electrically connected with an external power supply, the other end of the pin is electrically connected with the electromagnetic coil, a rectifier bridge is further electrically connected between the pin and the electromagnetic coil, and the rectifier bridge is used for converting alternating current into direct current. And the noise problem of an alternating current product and the tool precision requirement are thoroughly solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a relay technology field especially a small -size alternating current (AC) control relay of rectifier circuit. BACKGROUND

[0002] Electromagnetic relay is a kind of electronic controller, it has control system (also called input loop) and controlled system (also called output loop), usually applied in automatic control circuit, it is actually with smaller current, lower voltage to control larger current, higher voltage a kind of " automatic switch ".Therefore, it plays the roles of automatic regulation, safety protection, conversion circuit in circuit.Electromagnetic relay is widely used in aviation, aerospace, ship, household appliance etc., mainly completes signal transmission, execution control, system power distribution etc., is one of the key electronic components in each system.

[0003] Electromagnetic relay needs to connect external power supply to use, external power supply basically adopts alternating current, the current direction of alternating current will change periodically with time, and the core inside the electromagnetic relay of prior art is affected by the conversion frequency of alternating current and will vibrate and produce noise, that is, will produce alternating sound, so it is urgent to propose an electromagnetic relay capable of solving the problem of alternating sound. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the shortcomings and deficiencies of prior art and provides a small -size alternating current (AC) control relay of rectifier circuit, the utility model passes through installing rectifier bridge in relay, makes the current of access relay from alternating current conversion direct current, completely solves alternating current product noise problem and tooling precision requirement.

[0005] The technical scheme adopted by the utility model is as follows: a small -size alternating current (AC) control relay of rectifier circuit, including base and the electromagnetic coil and the core of installation on base, the core is arranged in the electromagnetic coil, the lower side of base is equipped with pin still, the pin one end electric connection external power supply and the other end electric connection electromagnetic coil, rectifier bridge is still electrically connected between the pin and electromagnetic coil, rectifier bridge is used to convert alternating current into direct current.

[0006] The base is also equipped with circuit board electrically connected with the rectifier bridge, and the rectifier bridge is welded on the circuit board.

[0007] The base is also equipped with an installation cavity for installing the rectifier bridge, and the circuit board is snap-fit in the installation cavity.

[0008] The circuit board is also welded with wires, and the end of the wire corresponding to the circuit board penetrates through the mounting hole, the wire and the rectifier bridge are respectively arranged on both sides of the circuit board, and the rectifier bridge is electrically connected with the wire through the mounting hole.

[0009] The circuit board is provided with four wires and four mounting holes, the rectifier bridge is provided with two input terminals and two output terminals, and the two pins are respectively electrically connected with the two input terminals through the wires.

[0010] The circuit board is provided with four wires and four mounting holes, the rectifier bridge is provided with two input terminals and two output terminals, and the two pins are respectively electrically connected with the two input terminals through the wires.

[0011] The machine base is further provided with two electrical connectors, the electromagnetic coil is electrically connected with the corresponding wires of the two output terminals through the two electrical connectors, and the circuit board is further provided with two insertion holes for inserting the electrical connectors.

[0012] The utility model discloses the beneficial effect is as follows: the utility model discloses a rectifier bridge is installed in the relay, and the current of the relay is converted from alternating current to direct current, and the direct current does not produce the alternating current, so that the short circuit ring does not need to be installed, reduces the part and processing, simplifies the iron core processing precision requirement, and the part saves the mould and manual cost, and the alternating current product noise problem and tooling precision requirement are solved thoroughly. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, under the premise of not paying the creative labor, according to these drawings, other drawings still belong to the scope of the utility model.

[0014] Figure 1 It is the structural diagram of the small alternating current (AC) control relay of the rectifier circuit of the utility model;

[0015] Figure 2 It is the front view schematic drawing of the utility model;

[0016] Figure 3 It is the structural diagram of the structure of the utility model without electromagnetic coil;

[0017] Figure 4 It is the structural diagram of the machine base in the utility model;

[0018] Figure 5 It is the structural diagram of the rectifier bridge in the utility model;

[0019] Figure 6 It is the structural diagram of the circuit board in the utility model;

[0020] In the diagram, 1-base, 2-electromagnetic coil, 3-iron core, 4-pin, 5-rectifier bridge, 6-circuit board, 7-mounting cavity, 8-wire, 9-mounting hole, 10-opening, 13-input terminal, 14-output terminal, 15-electrical connector, 16-socket. Detailed Implementation

[0021] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0022] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0023] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0024] like Figures 1 to 6 As shown, this is an embodiment of the present invention, a small AC control relay with a rectifier circuit, including a base 1 and an electromagnetic coil 2 and an iron core 3 mounted on the base 1. The iron core 3 passes through the electromagnetic coil 2. The base 1 is also provided with a pin 4 on its lower side. One end of the pin 4 is electrically connected to an external power source and the other end is electrically connected to the electromagnetic coil 2. A rectifier bridge 5 is also electrically connected between the pin 4 and the electromagnetic coil 2. The rectifier bridge 5 is used to convert AC power into DC power.

[0025] The beneficial effects of this design are as follows: By installing a rectifier bridge inside the relay, the current connected to the relay is converted from alternating current (AC) to direct current (DC). Since DC does not generate alternating current, a short-circuit ring is unnecessary, reducing the number of parts and processing requirements, simplifying the core machining accuracy requirements, saving on mold and labor costs, and completely solving the noise problem and tooling accuracy requirements of AC products. The rectifier bridge uses a surface-mount rectifier bridge disclosed in existing patent number CN221928071U, which can convert DC voltage to AC voltage and vice versa. This invention can be applied to machine tools, instruments, automation control, and other fields.

[0026] Furthermore, the base 1 is also provided with a circuit board 6 that is electrically connected to the rectifier bridge 5, and the rectifier bridge 5 is soldered onto the circuit board 6.

[0027] The beneficial effects of such an arrangement are as follows: the rectifier bridge is mounted on the base through the circuit board, and the mounting is more stable.

[0028] Further arrangement, the base 1 is provided with a mounting cavity 7 for mounting the rectifier bridge 5, and the circuit board 6 is snap-fit mounted in the mounting cavity 7.

[0029] The beneficial effects of such an arrangement are as follows: the rectifier bridge is mounted in the mounting cavity and then snap-fit mounted in the mounting cavity through the circuit board, realizing a hidden mounting mode of the rectifier bridge, and the appearance is more beautiful.

[0030] Further arrangement, the circuit board 6 is further provided with wires 8, and the ends of the wires 8 on the circuit board 6 are provided with mounting holes 9, the wires 8 are respectively arranged on both sides of the circuit board 6, and the rectifier bridge 5 is electrically connected with the wires 8 through the mounting holes 9.

[0031] The beneficial effects of such an arrangement are as follows: the wires are made of copper foil, which has excellent electrical conductivity and thermal conductivity, and can ensure smooth transmission of current and signals, the wires are respectively arranged on both sides of the circuit board, i.e. the wires are arranged on the end surface of the circuit board facing the outside of the mounting cavity, the mounting holes are provided for the rectifier bridge to pass through and be electrically connected with the wires, which facilitates welding and observation of the circuit.

[0032] Further arrangement, the circuit board 6 is further provided with wires 8, and the ends of the wires 8 on the circuit board 6 are provided with mounting holes 9, the wires 8 are respectively arranged on both sides of the circuit board 6, and the rectifier bridge 5 is electrically connected with the wires 8 through the mounting holes 9.

[0033] The beneficial effects of such an arrangement are as follows: the pins are arranged at the bottom of the base and sequentially penetrate the base and the opening to be electrically connected with the wires of the circuit board, which ensures stable electrical connection and has the advantage of compact structure.

[0034] Further arrangement, the circuit board 6 is further provided with wires 8, and the ends of the wires 8 on the circuit board 6 are provided with mounting holes 9, the wires 8 are respectively arranged on both sides of the circuit board 6, and the rectifier bridge 5 is electrically connected with the wires 8 through the mounting holes 9.

[0035] The beneficial effects of such an arrangement are as follows: the pins are electrically connected with the incoming terminals of the rectifier bridge, and the outgoing terminals are electrically connected with the electromagnetic coil, and the wires and the mounting holes are all provided with four and do not interfere with each other, which ensures the correct direction of current.

[0036] Further arrangement, the base 1 is further provided with two electrical connectors 15, the electromagnetic coil 2 is electrically connected with the wires 8 corresponding to the two outgoing terminals 14 through the two electrical connectors 15, and the circuit board 6 is further provided with two insertion holes 16 for inserting the electrical connectors 15.

[0037] The beneficial effects of such arrangement are as follows: the electromagnetic coil is connected with the wires corresponding to the two outlet terminals through two electrical connectors, so that the current converted by the rectifier bridge can be correctly transmitted to the electromagnetic coil, and the jack power connector is plugged and installed, thereby being more stably connected with the wires.

[0038] The above only discloses the preferred embodiments of the utility model, and of course cannot limit the scope of the utility model, so equivalent changes made according to the utility model claims still belong to the scope covered by the utility model.

Claims

1. A small-sized alternating current (AC) control relay of a rectifier circuit, comprising a base (1), an electromagnetic coil (2) and a core (3) mounted on the base (1), the core (3) being arranged inside the electromagnetic coil (2), and a pin (4) arranged on the lower side of the base (1), one end of the pin (4) being electrically connected to an external power source and the other end being electrically connected to the electromagnetic coil (2), characterized in that: The pin (4) and the electromagnetic coil (2) are further electrically connected with a rectifier bridge (5), and the rectifier bridge (5) is used for converting alternating current into direct current.

2. A compact AC control relay for a rectifier circuit according to claim 1, characterized in that: The machine base (1) is further provided with a circuit board (6) electrically connected with the rectifier bridge (5), and the rectifier bridge (5) is welded on the circuit board (6).

3. A compact AC control relay for a rectifier circuit according to claim 2, characterized in that: The machine base (1) is provided with a mounting cavity (7) for mounting the rectifier bridge (5), and the circuit board (6) is snap-fit mounted in the mounting cavity (7).

4. A compact AC control relay for a rectifier circuit according to claim 2, characterized in that: The circuit board (6) is further welded with a wire (8), and the end of the wire (8) corresponding to the circuit board (6) penetrates through a mounting hole (9), the wire (8) and the rectifier bridge (5) are respectively arranged on both sides of the circuit board (6), and the rectifier bridge (5) is electrically connected with the wire (8) through the mounting hole (9).

5. A compact AC control relay for a rectifier circuit according to claim 4, characterized in that: The circuit board (6) is provided with an opening (10) corresponding to the position of the end of the wire (8) away from the mounting hole (9), and the pin (4) penetrates through the opening (10) and is electrically connected with the wire (8).

6. A compact AC control relay for a rectifier circuit according to claim 5, characterized in that: The wire (8) and the mounting hole (9) on the circuit board (6) are all provided with four, the pin (4) is two, the rectifier bridge (5) is provided with two incoming terminals (13) and two outgoing terminals (14), and is respectively electrically connected with the corresponding wire (8) through one mounting hole (9), the two pins (4) are respectively electrically connected with the two incoming terminals (13) through the wire (8).

7. A compact AC control relay for a rectifier circuit according to claim 6, characterized in that: The machine base (1) is further provided with two electric connectors (15), the electromagnetic coil (2) is electrically connected with the wire (8) corresponding to the two outgoing terminals (14) through the two electric connectors (15), and the circuit board (6) is further provided with two jack holes (16) for inserting the electric connectors (15).

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