Magnetic latching magnetic circuit structure

Abstract

The utility model discloses a magnetic latching magnetic circuit structure which comprises a base, a yoke is arranged in the base, a coil framework is arranged on the inner side of the yoke, double coils are installed in the coil framework, a lower static iron core is fixedly connected to the position, located on one side of the double coils, of the bottom end of the yoke, and a copper sleeve is connected into the double coils in a sleeved mode. The direct-acting type double-coil magnetic latching relay has the following advantages that the relay magnetic latching structure is simple, the assembly is easy, the space is small, the stroke of the movable iron core is large, the contact gap is large, the magnetic latching effect is good, and the magnetic latching effect is good. The miniature magnetic latching relay can meet the requirement for opening and closing of a direct-current load, the control structure is simple and stable, one of the two coils controls attraction, and the other coil controls disconnection.

Description

TECHNICAL FIELD

[0001] The utility model relates to relay magnetic retention structure holds technical field, concretely relates to a magnetic retention magnetic circuit structure. BACKGROUND

[0002] With the continuous development of new energy equipment, the relay is put forward higher load DC switching capability and bears greater current carrying capacity, and at the same time, it is more and more towards the requirements of saving energy, convenient to use, saving space, safe and efficient and so on. In order to improve the cutting capacity and safety insulation capacity, the relay will improve the contact gap. But the magnetic retention electromagnetic system on the market is I beam structure, due to the limitation of structure, it cannot meet the product demand under the condition of large gap. Therefore, a magnetic retention magnetic circuit structure is provided to solve the above problems. UTILITY MODEL CONTENT

[0003] In order to solve the problems in the above background technology, the technical scheme adopted by the utility model to solve the technical problems is: a magnetic retention magnetic circuit structure, comprising: a base, the base is internally provided with a yoke, the inner side of the yoke is provided with a coil framework, the coil framework is internally provided with a double coil, the bottom end of the yoke is fixedly connected with a lower static core on one side of the double coil, the double coil is internally sleeved with a copper sleeve, the copper sleeve is internally slidably connected with a moving core, the top end of the yoke is fixedly connected with an upper cover, the upper cover is fixedly connected with an upper static core in the middle, the double coil comprises a first coil and a second coil, the first coil and the second coil correspond to each other, and the coil framework is internally provided with a magnet block at the butt joint of the first coil and the second coil.

[0004] As a preferred technical scheme of the utility model, the base is internally provided with a first static contact point on one side above the yoke, and a second static contact point is arranged on the other side above the yoke in the base.

[0005] As a preferred technical scheme of the utility model, the base is internally provided with a spring seat on the middle of the upper end, the spring seat is connected with a movable conducting plate at the bottom end, the movable conducting plate is fixedly connected with a first moving contact point at one end, and the movable conducting plate is fixedly connected with a second moving contact point at the other end.

[0006] As a preferred technical scheme of the utility model, the first moving contact point is opposite to the first static contact point, the second moving contact point is opposite to the second static contact point, and the movable conducting plate is located at the top end of the insulating seat.

[0007] As a preferred technical scheme of the utility model, the base is internally provided with a spring main body on both sides of the first moving contact point and the second moving contact point at the top end, and the connecting rod is threadedly connected in the moving core at the bottom end.

[0008] As a preferred technical scheme of the utility model, the first wiring terminal is arranged on the side of the first static contact point inside the base, the second wiring terminal is arranged on the side of the second static contact point inside the base, the coil terminal is arranged on the side of the lower end of the coil framework, and the coil terminal is connected with the double coil.

[0009] The utility model has the advantages that the relay magnetic retention structure is simple, easy to assemble and small in space, the moving iron core has large stroke and large contact gap, can meet the miniaturized magnetic retention relay for opening and closing of DC load, and the control structure is simple and stable, one coil of the double coil controls attraction, and the other coil controls disconnection. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the whole assembly structure schematic diagram of the electromagnetic relay of the preferred embodiment of the utility model;

[0011] Figure 2 It is the assembly structure schematic diagram of the electromagnetic structure of the preferred embodiment of the utility model;

[0012] Figure 3 It is the assembly structure schematic diagram of the coil framework and the double coil and the coil terminal of the preferred embodiment of the utility model.

[0013] The reference signs are explained as follows: 1, base; 2, yoke; 3, first coil; 301, second coil; 4, lower static iron core; 5, moving iron core; 6, upper cover; 7, upper static iron core; 8, connecting rod; 9, insulating seat; 10, first static contact point; 11, second static contact point; 12, spring seat; 13, movable conductive plate; 14, first moving contact point; 15, second moving contact point; 16, spring main body; 17, first wiring terminal; 18, second wiring terminal; 19, coil framework; 20, coil terminal; 21, copper sleeve; 22, magnet block. DETAILED DESCRIPTION

[0014] The technical scheme of the utility model will be described clearly and completely in combination with the drawings. In the description of the utility model, it should be explained that the orientation or position relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, structure and operation, therefore, cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying the importance of the opposite.

[0015] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through the intermediate medium indirectly connect, can be two element inside the intercommunication. For ordinary skilled person in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to specific circumstances.

[0016] The utility model is further described below in combination with the drawings.

[0017] Please see Figures 1-3 The utility model discloses a magnetic retention magnetic circuit structure, comprising: base 1, the inside of base 1 is provided with yoke 2, the inside of yoke 2 is provided with coil former 19, double coil is installed in the inside of coil former 19, the bottom end of yoke 2 is fixedly connected with lower static core 4 at one side of double coil, copper sleeve 21 is sleeved in the inside of double coil, moving iron core 5 is slidably connected in the inside of copper sleeve 21, the top end of yoke 2 is fixedly connected with upper cover 6, upper static core 7 is fixedly connected in the middle of upper cover 6, double coil includes first coil 3 and second coil 301, the first coil 3 and second coil 301 correspond, the inside of coil former 19 is provided with magnet block 22 at the butt joint of first coil 3 and second coil 301.

[0018] In combination with Figure 1 Wherein, the inside of base 1 is provided with first static contact point 10 at one side above yoke 2, the inside of base 1 is provided with second static contact point 11 at the other side above yoke 2, spring seat 12 is arranged in the middle of the inside of the upper end of base 1, and the movable conducting plate 13 is clamped and fixed through the spring seat 12, the movable conducting plate 13 is connected to the bottom end of spring seat 12, the movable conducting plate 13 can be quickly moved downward under the action of spring body 16, line closure is realized, the first dynamic contact point 14 is fixedly connected to one end of movable conducting plate 13, the second dynamic contact point 15 is fixedly connected to the other end of movable conducting plate 13, the first dynamic contact point 14 is opposite to the first static contact point 10, and the second dynamic contact point 15 is opposite to the second static contact point 11, and the movable conducting plate 13 is located at the top end of insulating seat 9.

[0019] Wherein, the inside of base 1 is provided with spring body 16 at both sides of first dynamic contact point 14 and second dynamic contact point 15, the bottom end of connecting rod 8 is screw-connected in the inside of moving iron core 5, the inside of base 1 is provided with first wiring terminal 17 at one side of first static contact point 10, the inside of base 1 is provided with second wiring terminal 18 at one side of second static contact point 11, coil terminal 20 is arranged at one side of the lower end of coil former 19, and coil terminal 20 is connected to double coil.

[0020] Specifically, when the coil terminal 20 is energized to energize one of the two coils, the first coil 3, the lower static core 4 generates a magnetic force to attract the moving core 5, so that the moving core 5 slides down with the connecting rod 8 and is magnetically attracted to the lower static core 4, the connecting rod 8 slides down with the insulating seat 9, and the spring body 16 pushes the movable conducting plate 13 with the first moving contact point 14 and the second moving contact point 15 to descend, so that the first moving contact point 14 contacts the first static contact point 10, and the second moving contact point 15 contacts the second static contact point 11, and the magnetic force of the magnet block 22 can keep the closed state.

[0021] When the electromagnetic relay needs to be disconnected, the coil terminal 20 is energized to energize the other second coil 301 of the two coils, so that the upper static core 7 generates a magnetic force, the moving core 5 slides upward until it is attracted to the upper static core 7, and then the moving core 5 moves upward with the connecting rod 8, and then the connecting rod 8 moves upward with the insulating seat 9 to push the movable conducting plate 13, and then the first moving contact point 14 and the first static contact point 10 are separated, the second moving contact point 15 and the second static contact point 11 are separated, and the magnetic force of the magnet block 22 can keep the disconnected state.

[0022] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, some improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

[0023] Other parts not described in the present application are all prior art, so they are not described here.

[0024] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A magnetic latching magnetic circuit structure comprising: The base (1) is characterized in that the base (1) is internally provided with a yoke (2), the yoke (2) is internally provided with a coil framework (19), the coil framework (19) is internally provided with a double coil, the bottom end of the yoke (2) is fixedly connected with a lower static core (4) on the side of the double coil, the double coil is internally sleeved with a copper sleeve (21), the copper sleeve (21) is internally and slidably connected with a moving core (5), the top end of the yoke (2) is fixedly connected with an upper cover (6), the upper cover (6) is fixedly connected with an upper static core (7) in the middle, the double coil comprises a first coil (3) and a second coil (301), the first coil (3) and the second coil (301) correspond to each other, and the coil framework (19) is internally provided with a magnet block (22) at the butt joint of the first coil (3) and the second coil (301).

2. A magnetic circuit structure of the magnetic latching type according to claim 1, characterized in that The upper static core (7) is slidably penetrated by a connecting rod (8), the connecting rod (8) is connected with an insulating seat (9) above the upper static core (7), the base (1) is internally provided with a first static contact point (10) on one side above the yoke (2), and the base (1) is internally provided with a second static contact point (11) on the other side above the yoke (2).

3. A magnetic circuit structure of the magnetic latching type according to claim 1, characterized in that, The base (1) is internally provided with a spring seat (12) on the middle of the upper end, the spring seat (12) is connected with a movable conductive plate (13), one end of the movable conductive plate (13) is fixedly connected with a first moving contact point (14), and the other end of the movable conductive plate (13) is fixedly connected with a second moving contact point (15).

4. A magnetic circuit structure of the magnetic latching type according to claim 3, characterized in that The first moving contact point (14) faces the first static contact point (10), the second moving contact point (15) faces the second static contact point (11), and the movable conductive plate (13) is located at the top end of the insulating seat (9).

5. A magnetic circuit structure of the magnetic latching type according to claim 2, characterized in that, The base (1) is internally provided with a spring main body (16) on the two sides of the first moving contact point (14) and the second moving contact point (15) at the top end, and the bottom end of the connecting rod (8) is threadedly connected in the moving core (5).

6. A magnetic circuit structure of the magnetic latching type according to claim 1, characterized in that, The base (1) is internally provided with a first wiring end (17) on one side of the first static contact point (10), the base (1) is internally provided with a second wiring end (18) on one side of the second static contact point (11), one side of the lower end of the coil framework (19) is provided with a coil terminal (20), and the coil terminal (20) is connected with the double coil.

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