Q / J220H balance force electromagnetic relay

Abstract

The invention provides a Q / J220H balance force electromagnetic relay. The Q / J220H balance force electromagnetic relay comprises a movable contact spring; a contact assembly and an electromagnet assembly are arranged on the two sides of the movable contact spring respectively, the electromagnet assembly comprises an iron core, a coil is wound on the iron core, a first magnetic pole and a second magnetic pole are fixed to the two ends of the iron core respectively, and one end of the first magnetic pole and one end of the second magnetic pole are arranged on movement tracks of the two ends of the movable contact spring respectively. According to the utility model, simultaneous switching of multiple paths of contacts is realized through the balanced movable contact spring, and circuit isolation is formed between each path of contacts, so that the high-temperature grade of the relay is greatly improved.

Description

Technical Field

[0001] The invention relates to a Q / J220H balanced force electromagnetic relay. Background Art

[0002] Relays have unique electrical and physical characteristics in control circuits. They have a series of advantages that cannot be replaced by solid electronic devices, such as high conversion depth, multi-channel synchronous switching, large input-output ratio, and strong anti-interference ability. They are widely used in electrical automatic control systems to complete signal transmission, execution control, system power distribution, circuit isolation, voltage or load conversion and other functions, and their reliability requirements are high. Q / J220H balanced force electromagnetic relay is a third-generation fully independently developed relay. With the application requirements of high life and high reliability of electrical control systems, the performance of existing products is difficult to meet. In addition, the product is small in size, and the performance improvement margin is limited due to product weight and space restrictions; in particular, the life of the electromagnet assembly and the armature contact piece assembly in the electromagnetic drive assembly will be significantly reduced at high temperatures, and even the problem of non-conversion will occur. If the product does not convert, it will cause the whole machine to fail and affect the safe operation. For example, a balanced force sealed AC electromagnetic relay disclosed in CN108447738A adopts a balanced force structure to make its conversion block with high reliability, but it is limited by product weight and space, and the performance improvement margin is limited. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a Q / J220H balanced force electromagnetic relay.

[0004] The present invention is achieved through the following technical solutions.

[0005] A Q / J220H balanced force electromagnetic relay provided by the present invention comprises a moving spring; contact assemblies and electromagnet assemblies are respectively arranged on both sides of the moving spring, the electromagnet assembly comprises an iron core, a coil is wound on the iron core, a first magnetic pole and a second magnetic pole are respectively fixed at both ends of the iron core, one end of the first magnetic pole and the second magnetic pole are respectively arranged on the movement tracks at both ends of the moving spring; the contact assembly comprises a plurality of moving contact pieces and static contact pieces of the same number, the plurality of moving contact pieces are fixedly connected to the moving spring piece in parallel and evenly, the static contact piece is fixed on a lead-out column, a static contact is installed on the static contact piece, a plurality of lead-out columns are relatively installed at both ends of a seat plate so that the static contacts are respectively opposite to the moving contacts installed at both ends of the moving contact piece, the lead-out column passes through the end surface of the seat plate, and the middle part of the seat plate is also equipped with intermediate lead-out columns of the same number as the lead-out columns, and a connecting piece is installed on the intermediate lead-out column.

[0006] The movable spring piece is installed at one end of the rotating seat adjacent to the electromagnet assembly, the movable contact piece is installed at the other end of the rotating seat, the rotating seat is hinged at the middle of the supporting plate, the electromagnet assembly is fixed at one end of the supporting plate, and the contact assembly is installed at the other end of the supporting plate.

[0007] The first magnetic pole and the second magnetic pole are bent vertically relative to one end adjacent to the movable spring piece, and the bending height of the second magnetic pole is lower than the bending height of the first magnetic pole. The end surface of the movable spring piece adjacent to the first magnetic pole and the second magnetic pole is a curved surface.

[0008] A magnetic steel is also installed between the iron core and the first magnetic pole, and a limiting spring is fixed to the outer end of the first magnetic pole. The end of the limiting spring is provided with a vertical bend higher than the first magnetic pole.

[0009] The static contact is L-shaped, one end of which is fixed on the side wall of the lead-out column, and the other end is fixedly connected to the top of the lead-out column.

[0010] The seat plate is also provided with an outer cover, which covers the support plate, the moving spring, the electromagnet assembly and the contact assembly, and a mounting ear is respectively provided at both ends of the outer cover.

[0011] The beneficial effect of the present invention is that: a plurality of contacts are switched simultaneously by a balanced movable spring, and circuit isolation is formed between each contact, so that the high temperature level of the relay is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 It is a schematic diagram of the support plate structure of the present invention;

[0014] Figure 3 It is a schematic diagram of the structure of the movable reed of the present invention;

[0015] Figure 4 It is a schematic diagram of the static contact structure of the present invention;

[0016] Figure 5 It is a schematic diagram of the working principle structure of the present invention;

[0017] Figure 6 It is a schematic diagram of the structure of the lead wire connection method of the present invention;

[0018] Figure 7 It is a schematic diagram of the outer cover structure of the present invention;

[0019] Figure 8 It is a schematic diagram of the top view structure of the outer cover of the present invention;

[0020] In the figure: 1-support plate, 2-moving spring, 3-support plate, 4-electromagnet assembly, 5-first magnetic pole, 6-magnet, 7-washer, 8-moving contact piece, 9-rotating seat, 10-rotating shaft, 11-second magnetic pole, 12-seat plate, 13-lead-out column, 14-static contact piece, 15-connecting plate, 16-middle lead-out column, 17-static contact, 18-bus support piece, 19-slot, 20-iron core, 21-limiting spring piece, 22-outer cover, 23-mounting ear. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0022] A Q / J220H balanced force electromagnetic relay, comprising a moving reed 2; contact assemblies and electromagnet assemblies 4 are respectively arranged on both sides of the moving reed 2, the electromagnet assembly 4 comprises an iron core 20, a coil is wound on the iron core 20, a first magnetic pole 5 and a second magnetic pole 11 are respectively fixed at both ends of the iron core 20, one end of the first magnetic pole 5 and the second magnetic pole 11 are respectively arranged on the motion tracks of the two ends of the moving reed 2; the contact assembly comprises a plurality of moving contact pieces 8 and static contact pieces 14 of the same number, the plurality of The moving contact piece 8 is fixedly connected to the moving spring piece 2 in parallel and evenly, the static contact piece 14 is fixed on the lead-out column 13, and a static contact 17 is installed on the static contact piece 14. Multiple lead-out columns 13 are relatively installed at both ends of the base plate 12 so that the static contact 17 is respectively opposite to the moving contacts installed at both ends of the moving contact piece 8. The lead-out column 13 passes through the end surface of the base plate 12, and the middle part of the base plate 12 is also installed with intermediate lead-out columns 16 with the same number as the lead-out columns 13, and a connecting piece 15 is installed on the intermediate lead-out column 16.

[0023] The movable spring piece 2 is installed on one end of the rotating seat 9 adjacent to the electromagnet assembly 4, the movable contact piece 8 is installed on the other end of the rotating seat 9, the rotating seat 9 is hinged in the middle of the support plate 1, the electromagnet assembly 4 is fixed on one end of the support plate 1, and the contact assembly is installed on the other end of the support plate 1.

[0024] The first magnetic pole 5 and the second magnetic pole 11 are relatively vertically bent at one end adjacent to the movable spring piece 2, and the bending height of the second magnetic pole 11 is lower than the bending height of the first magnetic pole 5, and the end surface of the movable spring piece 2 adjacent to the first magnetic pole 5 and the second magnetic pole 11 is a curved surface.

[0025] A magnetic steel 6 is installed between the iron core 20 and the first magnetic pole 5 . A limiting spring 21 is fixed to the outer end of the first magnetic pole 5 . The end of the limiting spring 21 is provided with a vertical bend higher than the first magnetic pole 5 .

[0026] The stationary contact 17 is L-shaped, one end of which is fixed to the side wall of the lead-out column 13 , and the other end is fixed to the top of the lead-out column 13 .

[0027] The seat plate 12 is also provided with an outer cover 22, which covers the support plate 1, the moving spring 2, the electromagnet assembly 4, and the contact assembly. A mounting ear 23 is provided at each end of the outer cover 22. Figures 1 to 6 As shown, as long as the rated voltage (28V DC) is applied to both ends of the coil to generate an electromagnetic effect, the armature will overcome the suction of the magnet under the action of the electromagnetic force and rotate, the normally closed contacts (A2-A3 / B2-B3 / C2-C3 / D2-D3) are disconnected, and the normally open contacts (A2-A1 / B2-B1 / C2-C1 / D2-D1) are closed. After the power is cut off at both ends of the coil, the electromagnetic force disappears, the suction of the magnet causes the armature to return to its original position, the normally open contacts are disconnected, and the normally closed contacts are closed.

Claims

1. A Q / J220H balanced force electromagnetic relay, comprising a moving reed (2), characterized in that: A contact assembly and an electromagnet assembly (4) are respectively provided on both sides of the moving spring piece (2), the electromagnet assembly (4) comprising an iron core (20), a coil being wound on the iron core (20), a first magnetic pole (5) and a second magnetic pole (11) being respectively fixed at both ends of the iron core (20), one end of the first magnetic pole (5) and one end of the second magnetic pole (11) being respectively arranged on the movement tracks of the two ends of the moving spring piece (2); the contact assembly comprises a plurality of moving contact pieces (8) and stationary contact pieces (14) of the same number, the plurality of moving contact pieces (8) being parallel and evenly connected to the moving spring piece ( 2) fixed connection, the static contact piece (14) is fixed on the lead-out column (13), a static contact (17) is installed on the static contact piece (14), a plurality of lead-out columns (13) are relatively installed at the two ends of the base plate (12) so that the static contact (17) is respectively opposite to the moving contact points installed at the two ends of the moving contact piece (8), the lead-out column (13) passes through the end surface of the base plate (12), and the middle part of the base plate (12) is also installed with the same number of intermediate lead-out columns (16) as the lead-out columns (13), and the intermediate lead-out columns (16) are installed with connecting pieces (15).

2. The Q / J220H balanced force electromagnetic relay according to claim 1, characterized in that: The movable spring piece (2) is mounted on one end of the rotating seat (9) adjacent to the electromagnet assembly (4), the movable contact piece (8) is mounted on the other end of the rotating seat (9), the rotating seat (9) is hinged at the middle of the support plate (1), the electromagnet assembly (4) is fixed on one end of the support plate (1), and the contact assembly is mounted on the other end of the support plate (1).

3. The Q / J220H balanced force electromagnetic relay according to claim 1, characterized in that: One end of the first magnetic pole (5) and the second magnetic pole (11) adjacent to the movable spring piece (2) is relatively vertically bent, and the bending height of the second magnetic pole (11) is lower than the bending height of the first magnetic pole (5), and the end surface of the movable spring piece (2) adjacent to the first magnetic pole (5) and the second magnetic pole (11) is a curved surface.

4. The Q / J220H balanced force electromagnetic relay according to claim 1, characterized in that: A magnetic steel (6) is also installed between the iron core (20) and the first magnetic pole (5), and a limiting spring leaf (21) is fixed to the outer end of the first magnetic pole (5), and the end of the limiting spring leaf (21) is provided with a vertical bend higher than the first magnetic pole (5).

5. The Q / J220H balanced force electromagnetic relay according to claim 1, characterized in that: The stationary contact (17) is L-shaped, one end of which is fixed on the side wall of the lead-out column (13), and the other end is fixedly connected to the top of the lead-out column (13).

6. The Q / J220H balanced force electromagnetic relay according to claim 1, characterized in that: An outer cover (22) is also installed on the seat plate (12), and the outer cover (22) covers the support plate (1), the movable spring (2), the electromagnet assembly (4), and the contact assembly. A mounting ear (23) is respectively provided at both ends of the outer cover (22).

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