Double-coil energy-saving electromagnetic structure and low-voltage electric appliance

Abstract

The application provides a double-coil energy-saving electromagnetic structure and a low-voltage electric appliance. The double-coil energy-saving electromagnetic structure comprises a static iron core, which is installed on a coil framework, and a part of the static iron core extends into a sliding cavity of the coil framework; a dynamic iron core, which is slidably arranged in the sliding cavity of the coil framework and is adapted to contact and attract the static iron core; a circuit board, which is connected to one side of the coil framework facing the dynamic iron core, and a sliding switch is electrically connected to the circuit board; the sliding switch has a static contact and a dynamic contact, the static contact is arranged on the circuit board, and the dynamic contact is adapted to slide towards and away from the static contact; an extended end of the dynamic iron core is adapted to drive the dynamic contact and the static contact to be disconnected; an attracting coil and a holding coil are connected in series on the circuit board, and the sliding switch is connected in parallel with the holding coil. In the holding loop, the attracting coil and the holding coil work in series in the double-coil energy-saving electromagnetic structure, and the double-coil energy-saving electromagnetic structure plays a role of current limiting, thereby achieving the purpose of energy saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of low-voltage electrical appliances, in particular to a double-coil energy-saving electromagnetic structure and a low-voltage electrical appliance. BACKGROUND

[0002] Low-voltage electrical appliances are provided with electromagnetic systems for remote control, and the electromagnetic systems of such products generally adopt AC E-type electromagnetic systems. Due to the inherent electromagnetic characteristics, a large amount of energy is required to complete the process of electromagnetic system attraction in the attraction process.

[0003] After the completion of the attraction, the actual holding energy required is relatively low. However, since the electromagnetic coil is the same coil during the attraction and holding, it is impossible to reduce the holding energy when a large amount of energy is ensured in the attraction process, thereby wasting a large amount of electric energy and failing to save energy. SUMMARY

[0004] Therefore, the technical problem to be solved by the present application is to overcome the defect of low-voltage electrical appliances in the prior art that do not save energy during use, thereby providing a double-coil energy-saving electromagnetic structure and a low-voltage electrical appliance.

[0005] In order to solve the above technical problems, the present application provides a double-coil energy-saving electromagnetic structure, comprising:

[0006] A coil framework has a sliding cavity therein, and the coil framework is externally sleeved with an attraction coil and a holding coil;

[0007] A static iron core is installed on the coil framework, and a part of the static iron core extends into the sliding cavity of the coil framework;

[0008] A dynamic iron core is slidably arranged in the sliding cavity of the coil framework, and the dynamic iron core is adapted to contact and attract the static iron core;

[0009] A circuit board is connected to one side of the coil framework facing the dynamic iron core, and a sliding switch is electrically connected to the circuit board; the sliding switch has a static contact and a dynamic contact, the static contact is arranged on the circuit board, and the dynamic contact is adapted to slide towards and away from the static contact;

[0010] The dynamic iron core has an extension end arranged opposite to the sliding switch, and the extension end is adapted to drive the dynamic contact to break contact with the static contact;

[0011] The attraction coil and the holding coil are connected in series on the circuit board, and the sliding switch and the holding coil are connected in parallel.

[0012] As a preferred solution, the sliding switch further comprises:

[0013] A guide is connected to the circuit board and has a first guide hole arranged along the sliding direction of the moving iron core.

[0014] A push rod is slidingly connected to the first guide hole of the guide, and the moving contact is connected to the side of the push rod facing the stationary contact, and the push rod is adapted to contact the extended end of the moving iron core.

[0015] As a preferred solution, it further comprises:

[0016] A cover is connected to the circuit board, and the stationary contact and the moving contact are accommodated in the cover.

[0017] As a preferred solution, it further comprises:

[0018] A fixing frame is integrally formed on the push rod, the moving contact is connected to the fixing frame, and the fixing frame has a guide block extending outward on the outer side wall.

[0019] A guide groove is arranged on the inner side wall of the cover, and the guide block is slidingly embedded in the guide groove.

[0020] As a preferred solution, the side of the coil former facing the moving iron core is connected with a first side plate through a connecting rod, and the moving iron core is located between the first side plate and the coil former.

[0021] As a preferred solution, the side of the first side plate facing the moving iron core is provided with a buffer pad.

[0022] As a preferred solution, it further comprises:

[0023] A second side plate is parallel to the first side plate and is connected to the side of the coil former facing the stationary iron core.

[0024] A third side plate has two spaced and parallel plates, both of which are connected between the first side plate and the second side plate; the coil former is accommodated in the space enclosed by the third side plate, the first side plate and the second side plate.

[0025] As a preferred solution, the coil former has a first end face and a second end face arranged in parallel, the sliding cavity passes through the first end face and the second end face, and the first end face and the second end face are integrally formed with a flange.

[0026] A low-voltage electrical appliance has a double-coil energy-saving electromagnetic structure as described in any of the above solutions.

[0027] The technical solution of the present application has the following advantages:

[0028] 1.The double-coil energy-saving electromagnetic structure provided by the present application, before the moving iron core and the static iron core are attracted, and when the moving iron core and the static iron core are just attracted, the moving contact and the static contact of the sliding switch are in a closed state, at this time the attraction coil is in a working state; during the attraction process of the moving iron core, and after moving a certain distance, the extended end of the moving iron core abuts against the moving contact and pushes the moving contact and the static contact to disconnect, at this time the attraction coil and the holding coil are in a working state together. The double-coil energy-saving electromagnetic structure realizes the following through the attraction movement of the moving iron core and the static iron core: in the starting circuit, only the attraction coil works, which can provide a larger starting current; in the holding circuit, the attraction coil and the holding coil work in series, which plays a role in current limiting, thereby achieving the purpose of energy saving.

[0029] 2.The double-coil energy-saving electromagnetic structure provided by the present application, the guide piece and the push rod are in sliding fit, which plays a guiding role, making the relative movement of the static contact and the moving contact of the sliding switch more stable.

[0030] 3.The double-coil energy-saving electromagnetic structure provided by the present application, the cover plays a protective role for the static contact and the moving contact.

[0031] 4.The double-coil energy-saving electromagnetic structure provided by the present application, the first side plate limits the movement range of the moving iron core, avoiding that the moving iron core moves too much and causes the moving iron core to be separated from the coil framework.

[0032] 5.The double-coil energy-saving electromagnetic structure provided by the present application, the moving iron core can buffer and collide with the first side plate through the buffer pad, avoiding damage caused by rigid collision.

[0033] 6.The double-coil energy-saving electromagnetic structure provided by the present application, the first side plate, the second side plate and the third side plate are connected in sequence, making the double-coil energy-saving electromagnetic structure modularized, which is convenient for arrangement with external equipment.

[0034] 7.The low-voltage electric appliance provided by the present application has the advantages of any one of the above-mentioned double-coil energy-saving electromagnetic structures. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0036] Figure 1 It is a schematic diagram of the double-coil energy-saving electromagnetic structure provided by the present application.

[0037] Figure 2 It is a structural schematic diagram of the coil framework.

[0038] Figure 3 Figure 1 is a schematic view of the connection relationship between the static iron core and the coil framework.

[0039] Figure 4 Figure 2 is a schematic view of the positional relationship when the push plate and the push rod are not in contact.

[0040] Figure 5 Figure 3 is a schematic view of the positional relationship when the push plate and the push rod are in contact.

[0041] Figure 6 Figure 4 is a schematic view of the structure of the slide switch.

[0042] Figure 7 Figure 5 is a schematic view of the structure of the slide switch after the cover is removed.

[0043] Figure 8 Figure 6 is a schematic view of the circuit of the double-coil energy-saving electromagnetic structure.

[0044] BRIEF DESCRIPTION OF THE DRAWINGS

[0045] 1. coil framework; 2. static iron core; 3. moving iron core; 4. circuit board; 5. slide switch; 6. slide cavity; 7. first flange plate; 8. second flange plate; 9. connecting rod; 10. mounting groove; 11. first side plate; 12. second side plate; 13. third side plate; 14. connecting piece; 15. connecting shaft; 16. push plate; 17. guide piece; 18. push rod; 19. fixing frame; 20. cover; 21. extension rod; 22. moving contact; 23. static contact; 24. guide block; 25. buffer pad; 26. support plate; 27. attraction coil; 28. holding coil. DETAILED DESCRIPTION

[0046] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0047] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0050] The dual-coil energy-saving electromagnetic structure provided in this embodiment, such as Figure 1 As shown, it includes: coil frame 1, pull-in coil 27, holding coil 28, stationary iron core 2, moving iron core 3, circuit board 4, and slide switch 5.

[0051] like Figure 2 As shown, the coil frame 1 has a rectangular structure with a through sliding cavity 6 inside; the sliding cavity 6 passes through two oppositely arranged first end faces and second end faces on the coil frame 1. A first flange 7 is integrally formed on the first end face, and a second flange 8 is integrally formed on the second end face; the first flange 7 has four integrally formed connecting rods 9, which are perpendicular to the first flange 7; the second flange 8 has four integrally formed mounting grooves 10, which are rectangularly distributed, and the two opposite mounting grooves 10 have relatively connected openings.

[0052] like Figure 1As shown, the coil former 1 has a first side plate 11, a second side plate 12 and a third side plate 13 arranged around the outer side. The first side plate 11 is connected to the connecting rod 9 of the first flange plate 7 and arranged in parallel with the first flange plate 7, and a space is formed between the first side plate 11 and the first flange plate 7. The third side plate 13 has two parallel plates arranged on the left and right sides of the first side plate 11 and connected perpendicularly to the left and right sides of the first side plate 11, and the top ends of the two third side plates 13 are connected by a support plate 26. The second side plate 12 is connected between the two third side plates 13 and arranged in parallel with the second flange plate 8. The second side plate 12 is in abutment with the first flange plate 7 through a connecting piece 14, one end of the connecting piece 14 is connected to the second side plate 12, and the other end of the connecting piece 14 is embedded in the mounting groove 10 on the second flange plate 8. The connecting piece 14 has two opposite connecting pieces arranged on the left and right sides, and the connecting piece 14 has an "E" shape structure, the upper and lower ends of the connecting piece 14 are embedded in two opposite mounting grooves 10, and the middle part of the connecting piece 14 is in abutment with the second flange plate 8. The upper and lower ends of the connecting piece 14 are provided with mounting holes, and the mounting holes of the two connecting pieces 14 are opposite to each other.

[0053] As shown in Figure 2 , Figure 3 , the static iron core 2 and the dynamic iron core 3 have an "E" shape structure, the static iron core 2 and the dynamic iron core 3 are arranged opposite to each other, and the static iron core 2 and the dynamic iron core 3 can be attracted into a "Ri" shape structure. The static iron core 2 is located between the two connecting pieces 14, one end of the static iron core 2 is connected to the connecting piece 14 through the connecting shaft 15 arranged in an upper and lower space, and the other end of the static iron core 2 is embedded in the sliding cavity 6 of the coil former 1. The connecting shaft 15 passes through the static iron core 2, one end of the connecting shaft 15 extends into the mounting hole of the right connecting piece 14, and the other end of the connecting shaft 15 extends into the mounting hole of the left connecting piece 14. The dynamic iron core 3 is located between the first side plate 11 and the first flange plate 7, one end of the dynamic iron core 3 can be in abutment with the first side plate 11, and the other end of the dynamic iron core 3 can be slidably inserted into the sliding cavity 6 of the coil former 1. The side of the first side plate 11 facing the dynamic iron core 3 is connected with a buffer pad 25, and the dynamic iron core 3 is in abutment with the first side plate 11 through the buffer pad 25.

[0054] As shown in Figure 4 , Figure 5As shown, the moving iron core 3 is connected with a push plate 16 on the side of the third side plate 13, the push plate 16 has an extending end extending towards the third side plate 13, and the moving iron core 3 can carry the push plate 16 to move towards and away from the first flange plate 7. The first flange plate 7 is connected with a circuit board 4, and the circuit board 4 is connected with a slide switch 5, and the slide switch 5 is arranged opposite to the extending end of the push plate 16.

[0055] As shown in the drawings, Figure 6 , Figure 7 The slide switch 5 includes a guide 17, a push rod 18, a fixed frame 19 and a cover 20. The guide 17 is connected to one side of the circuit board 4 facing the extending end of the push plate 16, and the guide 17 has a first guide hole. The push rod 18 is slidably arranged in the first guide hole, and one end of the push rod 18 can extend out of the first guide hole and contact the extending end of the push plate 16. The fixed frame 19 is integrally formed on the push rod 18, and the fixed frame 19 is connected with a moving contact 22. The circuit board 4 is connected with a static contact 23, and the static contact 23 is arranged opposite to the moving contact 22, and the static contact 23 can contact and abut the moving contact 22. The cover 20 is detachably connected to the circuit board 4, and the static contact 23, the moving contact 22 and the fixed frame 19 are located in the cover 20. The fixed frame 19 has an extending rod 21 concentrically arranged with the push rod 18, and the cover 20 has a second guide hole concentrically arranged with the push rod 18, and the extending rod 21 is slidably connected in the second guide hole. The left and right sides of the fixed frame 19 have outwardly extending guide blocks 24, and the inner side wall of the cover 20 has guide grooves corresponding to the guide blocks 24, and the guide blocks 24 are slidably embedded in the guide grooves.

[0056] The coil skeleton 1 is sleeved with an attracting coil 27 and a holding coil 28, the attracting coil 27 and the holding coil 28 are connected in series on the circuit board 4, and the slide switch 5 is connected in parallel with the holding coil 28.

[0057] Working principle:

[0058] Before the moving iron core 3 is attracted to the static iron core 2 and just starts to be attracted, the moving contact 22 and the static contact 23 of the slide switch 5 are in a closed state, and the attracting coil 27 is in a working state at this time.

[0059] During the attraction process, the moving iron core 3 carries the extended end of the push plate 16 to contact and abut the push rod 18 after moving a distance; the push plate 16 pushes the push rod 18 to move towards the attraction direction, so that the movable contact 22 is disconnected from the static contact 23; at this time, the attraction coil 27 and the holding coil 28 work in series; the resistance of the holding coil 28 is large, which plays a current limiting role in the loop, thereby achieving the purpose of energy saving.

[0060] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A two-coil energy saving electromagnetic structure, characterized in that, The utility model relates to a kind of slide switch, including: Coil skeleton (1), with the sliding cavity (6) of through inside, the outside of the coil skeleton (1) is equipped with suction coil (27) and keeps coil (28); Static iron core (2), installed on the coil skeleton (1), part of the static iron core (2) is inserted into the sliding cavity (6) of the coil skeleton (1); Dynamic iron core (3), slidingly disposed in the sliding cavity (6) of the coil skeleton (1), the dynamic iron core (3) is adapted to contact suction with the static iron core (2); Circuit board (4), connected to the side of the coil skeleton (1) towards the dynamic iron core (3), the circuit board (4) is electrically connected with sliding switch (5);The sliding switch (5) has static contact (23) and movable contact (22), the static contact (23) is arranged on the circuit board (4), the movable contact (22) is adapted to slide towards and away from the static contact (23); The dynamic iron core (3) has protruding end opposite to the sliding switch (5), and the protruding end is adapted to drive the movable contact (22) and the static contact (23) to be disconnected; The suction coil (27) and the keep coil (28) are connected in series on the circuit board (4), and the sliding switch (5) is connected in parallel with the keep coil (28); The sliding cavity (6) passes through the first end face and the second end face of two opposite settings on the coil skeleton (1), the first end face is integrally formed with the first flange (7), the dynamic iron core (3) is connected with push plate (16), and the dynamic iron core (3) is adapted to carry the push plate (16) and move towards and away from the first flange (7); When the dynamic iron core (3) and the static iron core (2) are initially attracted, the movable contact (22) and the static contact (23) are in closed state, and at this time, the suction coil (27) is in working state; The sliding switch (5) further includes: Guide (17), connected to the circuit board (4), with the first guide hole of setting along the sliding direction of the dynamic iron core (3); Push rod (18), slidingly connected in the first guide hole of the guide (17), the movable contact (22) is connected to the side of the push rod (18) towards the static contact (23), and the push rod (18) is adapted to contact and abut with the protruding end of the dynamic iron core (3); During the attraction of the dynamic iron core (3), and after moving a distance, the protruding end of the dynamic iron core (3) and the push rod (18) are contacted and abutted.

2. The double coil energy saving electromagnetic structure according to claim 1, characterized in that, Further including: Cover (20), connected to the circuit board (4), the static contact (23) and the movable contact (22) are contained in the cover (20).

3. The double coil energy saving electromagnetic structure according to claim 2, characterized in that, Further including: Fixed frame (19), integrally formed on the push rod (18), the movable contact (22) is connected to the fixed frame (19), and the fixed frame (19) has the guide block (24) that protrudes outward on the outer side wall; Guide groove, arranged on the inner side wall of the cover (20), the guide block (24) is slidingly embedded in the guide groove.

4. The dual coil energy saving electromagnetic structure of claim 1, wherein, The side of the coil former (1) facing the moving iron core (3) is connected with a first side plate (11) through a connecting rod (9), and the moving iron core (3) is located between the first side plate (11) and the coil former (1).

5. The double coil energy saving electromagnetic structure according to claim 4, characterized in that, The side of the first side plate (11) facing the moving iron core (3) is provided with a buffer pad (25).

6. The double coil energy saving electromagnetic structure according to claim 4, characterized in that, Further comprising: A second side plate (12) is parallel to the first side plate (11) and is connected to the side of the coil former (1) facing the static iron core (2); A third side plate (13) has two spaced and parallel parts, both of which are connected between the first side plate (11) and the second side plate (12); the coil former (1) is accommodated into the space enclosed by the third side plate (13), the first side plate (11) and the second side plate (12).

7. The dual coil energy saving electromagnetic structure of claim 1, wherein, The coil former (1) has a first end face and a second end face arranged in parallel, the sliding cavity (6) passes through the first end face and the second end face, and the first end face and the second end face are integrally formed with flanges.

8. A low voltage electrical apparatus, characterized in that, The double-coil energy-saving electromagnetic structure has the advantages of the double-coil energy-saving electromagnetic structure of any one of claims 1-7.

Images