CN113130258A

CN113130258A - Double-coil energy-saving electromagnetic structure and low-voltage electrical appliance

Info

Publication number: CN113130258A
Application number: CN202110552860.6A
Authority: CN
Inventors: 邱建洪; 翁金藏; 屠瑜权; 屠旭慰
Original assignee: Zhejiang Jonk Technology Co ltd
Current assignee: Zhejiang Jonk Technology Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-07-16

Abstract

The invention provides a double-coil energy-saving electromagnetic structure and a low-voltage electrical appliance, wherein the double-coil energy-saving electromagnetic structure comprises: the static iron core is arranged on the coil framework, and part of the static iron core extends into the sliding cavity of the coil framework; the movable iron core is arranged in a sliding cavity of the coil framework in a sliding mode and is suitable for being in contact with and attracting the static iron core; the circuit board is connected to one side, facing the movable iron core, of the coil framework, and is electrically connected with a sliding switch; the sliding switch is provided with a fixed contact and a movable contact, the fixed contact is arranged on the circuit board, and the movable contact is suitable for sliding towards and away from the fixed contact; the extending end of the movable iron core is suitable for driving the movable contact to be disconnected from the fixed contact; the pull-in coil and the holding coil are connected in series on the circuit board, and the slide switch and the holding coil are connected in parallel. In the double-coil energy-saving electromagnetic structure, the attraction coil and the holding coil work in series in the holding loop to play a role in limiting current, so that the aim of saving energy is fulfilled.

Description

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

Technical Field

The invention relates to the technical field of low-voltage electric appliances, in particular to a double-coil energy-saving electromagnetic structure and a low-voltage electric appliance.

Background

The low-voltage electrical appliance products are provided with electromagnetic systems for realizing remote control, the electromagnetic systems of the products generally adopt an alternating current E-type electromagnetic system as a main part, and due to the inherent electromagnetic property of the electromagnetic systems, the attraction process of the electromagnetic systems needs to be finished by improving larger energy in the attraction process.

The energy required for actual holding after the actuation is finished is relatively low, but because the electromagnetic coils are the same coil no matter the actuation or the holding, when the large energy in the actuation process is ensured, the energy of the product can not be reduced when the actuation process is ensured, thereby wasting more electric energy, and being incapable of playing the role of saving energy

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the low-voltage electrical appliance product in the prior art is not energy-saving in the using process, thereby providing a double-coil energy-saving electromagnetic structure and a low-voltage electrical appliance.

In order to solve the above technical problem, the present invention provides a dual-coil energy-saving electromagnetic structure, including:

the coil framework is internally provided with a through sliding cavity, and the attraction coil and the holding coil are sleeved outside the coil framework;

the static iron core is arranged on the coil framework, and part of the static iron core extends into a sliding cavity of the coil framework;

the movable iron core is arranged in a sliding cavity of the coil framework in a sliding mode and is suitable for being in contact with and attracting the static iron core;

the circuit board is connected to one side, facing the movable iron core, of the coil framework, and a sliding switch is electrically connected to the circuit board; the sliding switch is provided with a fixed contact and a moving contact, the fixed contact is arranged on the circuit board, and the moving contact is suitable for sliding towards and away from the fixed contact;

the movable iron core is provided with an extending end which is arranged opposite to the sliding switch, and the extending end is suitable for driving the movable contact to be disconnected from the fixed contact;

the pull-in coil and the holding coil are connected in series on the circuit board, and the sliding switch is connected in parallel with the holding coil.

Preferably, the slide switch further includes:

the guide piece is connected with the circuit board and is provided with a first guide hole arranged along the sliding direction of the movable iron core;

the push rod is connected in the first guide hole of the guide piece in a sliding mode, the moving contact is connected to one side, facing the static contact, of the push rod, and the push rod is suitable for being in contact butt with the extending end of the moving iron core.

Preferably, the method further comprises the following steps:

and the housing is connected to the circuit board, and the fixed contact and the movable contact are accommodated in the housing.

Preferably, the method further comprises the following steps:

the fixed frame is integrally formed on the push rod, the moving contact is connected with the fixed frame, and a guide block extending outwards is arranged on the outer side wall of the fixed frame;

the guide way is arranged on the inner side wall of the housing, and the guide block is embedded into the guide way in a sliding manner.

As a preferred scheme, the coil framework is towards one side of the movable iron core is connected with a first side plate through a connecting rod, and the movable iron core is located between the first side plate and the coil framework.

Preferably, a buffer pad is arranged on one side of the first side plate facing the movable iron core.

Preferably, the method further comprises the following steps:

the second side plate is parallel to the first side plate and connected to one side, facing the static iron core, of the coil framework;

the third side plate is provided with two spaced and parallel side plates which are connected between the first side plate and the second side plate; the coil framework is accommodated in a space enclosed by the third side plate, the first side plate and the second side plate.

Preferably, the coil framework is provided with a first end face and a second end face which are arranged in parallel, the sliding cavity penetrates through the first end face and the second end face, and flange plates are integrally formed on the first end face and the second end face.

A low-voltage electrical appliance is provided with the double-coil energy-saving electromagnetic structure in any one of the above schemes.

The technical scheme of the invention has the following advantages:

1. before and when the movable iron core and the static iron core are attracted, a movable contact and a static contact of the sliding switch are in a closed state, and the attraction coil is in a working state; the movable iron core is in the actuation process, and after moving one end distance, the extending end of the movable iron core is abutted to the movable contact, and the movable contact is pushed to be disconnected from the fixed contact, and at the moment, the actuation coil and the holding coil are jointly in a working state. The double-coil energy-saving electromagnetic structure is realized through the actuation motion of the movable iron core and the static iron core: in the starting loop, only the suction coil works, and larger starting current can be provided; in the holding loop, the attraction coil and the holding coil are connected in series to work, so that the current limiting effect is achieved, and the purpose of energy saving is achieved.

2. According to the double-coil energy-saving electromagnetic structure provided by the invention, the guide piece is in sliding fit with the push rod to play a role in guiding, so that the relative motion of the static contact and the moving contact of the sliding switch is more stable.

3. According to the double-coil energy-saving electromagnetic structure provided by the invention, the housing plays a role in protecting the static contact and the moving contact.

4. According to the double-coil energy-saving electromagnetic structure provided by the invention, the first side plate limits the moving range of the movable iron core, and the movable iron core is prevented from being separated from the coil framework due to overlarge moving range.

5. According to the double-coil energy-saving electromagnetic structure provided by the invention, the movable iron core can be in buffer collision with the first side plate through the buffer pad, so that the damage of rigid collision is avoided.

6. According to the double-coil energy-saving electromagnetic structure provided by the invention, the first side plate, the second side plate and the third side plate are sequentially connected, so that the double-coil energy-saving electromagnetic structure is modularized and is convenient to arrange with external equipment.

7. The low-voltage apparatus provided by the invention has the advantages of any one of the above mentioned schemes due to the double-coil energy-saving electromagnetic structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic diagram of a dual-coil energy-saving electromagnetic structure provided in the present invention.

Fig. 2 is a schematic structural diagram of a bobbin.

Fig. 3 is a schematic view of the connection relationship between the stationary core and the bobbin.

FIG. 4 is a schematic diagram of the position relationship between the push plate and the push rod when the push plate is not in contact with the push rod.

FIG. 5 is a schematic diagram showing the position relationship between the push plate and the push rod.

Fig. 6 is a schematic structural view of the slide switch.

Fig. 7 is a schematic structural view of the slide switch with the cover removed.

Fig. 8 is a circuit diagram of a dual-coil energy-saving electromagnetic structure.

Description of reference numerals:

1. a coil bobbin; 2. a stationary iron core; 3. a movable iron core; 4. a circuit board; 5. a slide switch; 6. a sliding cavity; 7. a first flange plate; 8. a second flange plate; 9. a connecting rod; 10. mounting grooves; 11. a first side plate; 12. a second side plate; 13. a third side plate; 14. a connecting member; 15. a connecting shaft; 16. pushing the plate; 17. a guide member; 18. a push rod; 19. a fixed mount; 20. a housing; 21. an extension bar; 22. a moving contact; 23. static contact; 24. a guide block; 25. a cushion pad; 26. a supporting plate; 27. attracting a coil; 28. the coil is held.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The dual-coil energy-saving electromagnetic structure provided by this embodiment, as shown in fig. 1, includes: the coil framework 1, the attraction coil 27, the holding coil 28, the static iron core 2, the movable iron core 3, the circuit board 4 and the slide switch 5.

As shown in fig. 2, the bobbin 1 has a rectangular structure, and a through sliding cavity 6 is formed inside the bobbin; the sliding cavity 6 penetrates through a first end face and a second end face which are oppositely arranged on the coil framework 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 is provided with four integrally formed connecting rods 9, and the connecting rods 9 are perpendicular to the first flange 7; the second flange plate 8 is provided with four mounting grooves 10 which are integrally formed, the four mounting grooves 10 are distributed in a rectangular shape, and the left mounting groove 10 and the right mounting groove 10 which are opposite are provided with openings which are communicated oppositely.

As shown in fig. 1, the bobbin 1 has a first side plate 11, a second side plate 12, and a third side plate 13 disposed around the outside thereof. The first side plate 11 is connected to the connecting rod 9 of the first flange 7, and is parallel to the first flange 7, and a space is formed between the first side plate 11 and the first flange 7. The two third side plates 13 are arranged in parallel left and right and are vertically connected to the left side and the right side of the first side plate 11, and the top ends of the two third side plates 13 are connected through a supporting plate 26; the second side plate 12 is connected between the two third side plates 13, and the second flange plates 8 of the second side plate 12 are arranged in parallel; the second side plate 12 is abutted against the first flange 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 into the mounting groove 10 on the second flange 8. The connecting piece 14 is provided with two opposite left and right ends, the connecting piece 14 is of an E-shaped structure, the upper end and the lower end of the connecting piece 14 are correspondingly embedded into the two opposite mounting grooves 10, and the middle part of the connecting piece 14 is in contact and butt joint with the second flange 8; the upper end and the lower end of the connecting piece 14 are provided with mounting holes, and the two mounting holes in the connecting piece 14 are opposite to each other left and right.

As shown in fig. 2 and 3, the stationary iron core 2 and the movable iron core 3 are both in an "E" shape, the stationary iron core 2 and the movable iron core 3 are arranged oppositely, and the stationary iron core 2 and the movable iron core 3 can be attracted into a "japanese" shape. The static iron core 2 is positioned between the two connecting pieces 14, one end of the static iron core is connected with the connecting pieces 14 through connecting shafts 15 arranged at intervals up and down, and the middle part of the other end of the static iron core is embedded into the sliding cavity 6 of the coil framework 1; the connecting shaft 15 penetrates through the static iron core 2, one end of the connecting shaft extends into the mounting hole of the right connecting piece 14, and the other end of the connecting shaft extends into the mounting hole of the left connecting piece 14. Move the iron core 3 be located first curb plate 11 with between the first ring flange 7, move the one end of iron core 3 can with first curb plate 11 contact butt, move the middle part slidable of the iron core 3 other end and stretch into in the sliding chamber 6 of coil skeleton 1. One side of the first side plate 11 facing the movable iron core 3 is connected with a buffer pad 25, and the movable iron core 3 is abutted against the first side plate 11 through the buffer pad 25.

As shown in fig. 4 and 5, a push plate 16 is connected to one side of the movable iron core 3 facing the right side of the third side plate 13, the push plate 16 has an extended end extending out towards the right side of the third side plate 13, and the movable iron core 3 can carry the push plate 16 to move towards and away from the first flange 7. The first flange plate 7 is connected with a circuit board 4, the circuit board 4 is connected with a sliding switch 5, and the sliding switch 5 is opposite to the extending end of the push plate 16.

As shown in fig. 6 and 7, the slide switch 5 includes: a guide 17, a push rod 18, a fixing frame 19, and a cover 20; the guide member 17 is connected to one side of the circuit board 4, which is towards the extending end of the push plate 16, and the guide member 17 is provided with a first through guide hole; the push rod 18 is slidably inserted into the first guide hole, and one end of the push rod 18 can extend out of the first guide hole and contact with 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 movable contact 22; the circuit board 4 is connected with a static contact 23, the static contact 23 is arranged opposite to the movable contact 22, and the static contact 23 can be contacted and abutted with the movable contact 22. The housing 20 is detachably connected to the circuit board 4, and the fixed contact 23, the movable contact 22 and the fixed mount 19 are all located in the housing 20. The fixed frame 19 is provided with an extension bar 21 which is concentric with the push rod 18, the housing 20 is provided with a second guide hole which is concentric with the push rod 18, and the extension bar 21 can be slidably connected in the second guide hole. The left side and the right side of the fixed frame 19 are provided with guide blocks 24 which extend outwards; the inner side wall of the housing 20 is provided with a guide groove corresponding to the guide block 24, and the guide block 24 is slidably inserted into the guide groove.

An attraction coil 27 and a holding coil 28 are sleeved on the coil framework 1, the attraction coil 27 and the holding coil 28 are connected in series on the circuit board 4, and the sliding switch 5 and the holding coil 28 are connected in parallel.

The working principle is as follows:

before and when the movable iron core 3 and the static iron core 2 are attracted, the movable contact 22 and the static contact 23 of the sliding switch 5 are in a closed state, and the attraction coil 27 is in a working state;

in the process of attracting the movable iron core 3, after the movable iron core 3 moves for a certain distance, the extending end of the movable iron core 3 carrying the push plate 16 is contacted and abutted with the push rod 18; the push plate 16 pushes the push rod 18 to move towards the attracting direction, so that the movable contact 22 is disconnected with the static contact 23, and the attracting coil 27 and the holding coil 28 are connected in series to work at the moment; the resistance of the holding coil 28 is large, which plays a role in limiting current in the loop, thereby achieving the purpose of energy saving.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. a dual-coil energy-saving electromagnetic structure, is characterized in that, comprises:

A coil bobbin (1) has a through sliding cavity (6) inside, and a pull-in coil (27) and a holding coil (28) are sleeved on the outside of the coil bobbin (1);

a static iron core (2), mounted on the coil bobbin (1), a part of the static iron core (2) extending into the sliding cavity (6) of the coil bobbin (1);

The moving iron core (3) is slidably arranged in the sliding cavity (6) of the coil bobbin (1), and the moving iron core (3) is suitable for contacting and engaging with the static iron core (2);

A circuit board (4) is connected to the side of the coil bobbin (1) facing the moving iron core (3), and a sliding switch (5) is electrically connected to the circuit board (4); the sliding switch (5) having a static contact (23) and a moving contact (22), the static contact (23) is arranged on the circuit board (4), and the moving contact (22) is suitable for facing and away from the static contact (23) slides;

The movable iron core (3) has a protruding end opposite to the sliding switch (5), and the protruding end is suitable for driving the movable contact (22) and the static contact (23) break contact;

The pull-in coil (27) and the holding coil (28) are connected in series on the circuit board (4), and the sliding switch (5) is connected in parallel with the holding coil (28).

2. The dual-coil energy-saving electromagnetic structure according to claim 1, wherein the slide switch (5) further comprises:

A guide member (17), connected to the circuit board (4), has a first guide hole arranged along the sliding direction of the movable iron core (3);

A push rod (18) is slidably connected in the first guide hole of the guide member (17), and the movable contact (22) is connected to the static contact (23) of the push rod (18) facing the The push rod (18) is suitable for contacting and abutting with the protruding end of the moving iron core (3).

3. The dual-coil energy-saving electromagnetic structure according to claim 2, further comprising:

A cover (20) is connected to the circuit board (4), and the static contacts (23) and the movable contacts (22) are accommodated in the cover (20).

4. The dual-coil energy-saving electromagnetic structure according to claim 3, further comprising:

The fixing frame (19) is integrally formed on the push rod (18), the movable contact (22) is connected to the fixing frame (19), and the outer side wall of the fixing frame (19) has an outward direction. Protruding guide block (24);

A guide groove is provided on the inner side wall of the casing (20), and the guide block (24) is slidably embedded in the guide groove.

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

6 . The dual-coil energy-saving electromagnetic structure according to claim 5 , wherein a buffer pad ( 25 ) is provided on the side of the first side plate ( 11 ) facing the moving iron core ( 3 ). 7 .

7. The dual-coil energy-saving electromagnetic structure according to claim 5, further comprising:

A second side plate (12), parallel to the first side plate (11), is connected to the side of the coil bobbin (1) facing the static iron core (2);

The third side plate (13) has two spaced and parallel arranged, both of which are connected between the first side plate (11) and the second side plate (12); the coil bobbin (1) accommodates into the space enclosed by the third side plate (13), the first side plate (11) and the second side plate (12).

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

9. A low-voltage electrical appliance, characterized in that it has the dual-coil energy-saving electromagnetic structure described in any one of claims 1-8.