Energy-saving coil framework and contactor

Abstract

The utility model discloses an energy-saving coil framework and a contactor. The energy-saving coil framework comprises a first end part; a second end; the winding part is arranged between the first end part and the second end part; one or two groups of mounting grooves are formed in any one side or two sides of the first end part, each group of mounting grooves comprises a first mounting groove and a second mounting groove, the static contact piece and the movable contact piece are arranged in a contact manner, and one end of the movable contact piece extends outwards to form an extension section for bearing force. The mounting groove is directly arranged at the upper end part of the coil framework, and the movable contact piece and the static contact piece which can be driven by the contact support are arranged in the groove, so that when the movable iron core and the static iron core are attracted, the movable contact piece and the static contact piece are disconnected, the space of the coil framework is directly utilized, the position switch is integrated on the coil framework, and the position switch is convenient to mount and low in cost. Meanwhile, the requirement for the internal space of the contactor is small, and the energy-saving design of the contactor with the small size can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage electric appliance technical field, concretely relates to a kind of energy-saving coil framework and contactor. BACKGROUND

[0002] With the vigorous development of automation industry, artificial intelligence industry, intelligent sensor, computer technology, control technology, electronic technology, the role of control class electric appliance is more and more important, and the use is also more and more extensive.Control class electric appliance has many types, such as AC contactor and DC contactor, which can be used for remote frequent connection or disconnection of various terminal electric appliances.The control of common daily life electric motor, transformer, lighting electric equipment, etc.It involves a wide range of fields, and plays an important role in the development of social and economic benefits in the fields of agriculture, industry, transportation, life and production.

[0003] In order to achieve the effect of energy saving, the existing contactor such as Chinese patent CN 222260905 U discloses an AC contactor, which uses position switch to control the movement of dynamic and static iron core, realizes the switching of coil attraction state and maintenance state, and realizes the effect of energy saving.For the AC contactor of conventional size, there is a certain space in the base, which is convenient for additional installation of position switch, and for some small volume AC contactors, there is not enough space in the base to install position switch, so it is difficult to realize the effect of energy saving by installing position switch. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an energy-saving coil framework and contactor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An energy-saving coil framework comprises:

[0007] A first end portion is arranged in a first direction;

[0008] A second end portion is arranged in parallel with the first end portion;

[0009] A winding portion is arranged between the first end portion and the second end portion for winding a coil, and is arranged in a second direction perpendicular to the first direction;

[0010] One side or both sides of the first end portion is provided with a mounting groove, and the mounting groove is one or two groups, each group of mounting grooves comprises a first mounting groove and a second mounting groove arranged in the second direction,

[0011] A static contact piece is fixedly arranged in the first mounting groove,

[0012] A movable contact piece is fixedly disposed in the second mounting groove, and the movable contact piece and the stationary contact piece are in contact. One end of the movable contact piece extends outward to form an extension section for bearing force.

[0013] When the contactor is engaged, the moving contact piece disconnects from the stationary contact piece under the force generated by the closing action. When the contactor is disengaged, the moving contact piece resets and contacts the stationary contact piece.

[0014] The static contact piece and the dynamic contact piece are metal springs.

[0015] The stationary contact piece and the moving contact piece are respectively provided with stationary contact points and moving contact points, and the two are arranged facing each other.

[0016] The second mounting groove is further provided with a third mounting groove on its lower side, and the third mounting groove is provided with an elastic element for driving the moving contact piece to reset.

[0017] One end of the third mounting slot is provided with a hook for limiting the installation position of the elastic element.

[0018] There are two hooks, symmetrically arranged at both ends of the third mounting slot.

[0019] The first mounting slot and the second mounting slot are Z-shaped.

[0020] The first mounting groove is provided with a limiting rib, and there is a gap between the two symmetrically arranged limiting ribs that allows the contact bracket to pass through.

[0021] A contactor includes a housing consisting of a base and a top cover. The housing contains the aforementioned energy-saving coil frame, a stationary iron core, and a moving iron core assembly. The moving iron core assembly includes a moving iron core and a contact support. When the moving iron core moves toward the stationary iron core, the contact support can drive the moving contact piece to move simultaneously and disconnect the moving contact piece from the stationary contact piece.

[0022] The beneficial effects of this utility model are as follows: an installation groove is directly set on the upper end of the coil frame, and a moving contact piece and a stationary contact piece that can be driven by the contact bracket are set in the groove. Then, when the moving and stationary iron cores are attracted, the moving and stationary contact pieces are disconnected. The space of the coil frame is directly utilized, and the position switch is integrated on the coil frame. It is easy to install and requires less internal space of the contactor, which can meet the energy-saving design of small-volume contactors. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0025] Figure 3A schematic diagram of the coil frame structure to omit the moving and stationary contact pieces.

[0026] Figure 4 for Figure 3 Enlarged diagram of point B in the middle.

[0027] Figure 5 This is a schematic diagram of the contactor.

[0028] Figure 6 This is a cross-sectional schematic diagram of the contactor.

[0029] Figure 7 A schematic diagram of the internal structure of the contactor without the housing. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] like Figure 1 As shown, this utility model discloses an energy-saving coil frame, which includes an integrally formed first end portion 100, a winding portion 300, and a second end portion 200, wherein the first end portion and the second end portion are arranged parallel to each other and along the... Figure 1 The winding section 300 is positioned in the X direction, connecting the first end and the second end, i.e., the winding section is positioned along the second direction, such as... Figure 1 The Y-direction, i.e., the first direction is perpendicular to the second direction, and the winding part is centered, so that the entire coil frame is I-shaped, and the length of the first end is greater than the length of the second end.

[0033] The stationary iron core can be inserted into the winding section from the bottom side of the second end upwards, while the moving iron core is inserted into the winding section from the top side of the first end downwards, and a coil is wound on the surface of the winding section.

[0034] like Figure 2 and Figure 3As shown, the first end 100 is provided with a mounting groove 700 on either side or both sides. In this embodiment, it is provided on one side. In scenarios where multiple position switches are required, both sides can be provided with mounting grooves 700. If it is only one side, the structure of the other side is the same as that of a conventional coil frame, which is used to fix the terminal block.

[0035] The mounting slots 700 are in one or two sets; in this embodiment, there are two sets, symmetrically arranged at both ends of the first end 100, with a gap between them to allow the contact bracket to pass through. Each set of mounting slots 700 includes a first mounting slot 710 and a second mounting slot 720 arranged along the second direction.

[0036] The static contact piece 400 is fixedly installed in the first mounting slot 710.

[0037] The moving contact piece 500 is fixedly disposed in the second mounting groove 720, and the moving contact piece 500 and the stationary contact piece 400 are in contact. One end of the moving contact piece 500 extends outward to form an extension section 510 for bearing force. In this embodiment, the contactor support 62 of the contactor is used to apply force. Therefore, the extension section is disposed on the moving path of the contactor support 62. That is, the length of the moving contact piece is greater than that of the stationary contact piece, so that when the contactor support moves downward, it touches the extension section and does not drive the stationary contact piece.

[0038] When the moving iron core 61 and the stationary iron core 70 of the contactor are attracted together, the contact bracket 62 drives the moving contact piece 500 to disconnect from the stationary contact piece 400. When the moving iron core 61 and the stationary iron core 70 of the contactor are separated, the moving contact piece 500 resets and contacts the stationary contact piece 400.

[0039] To better secure the contact piece and allow it to deform to a certain extent, the mounting groove adopts an approximately Z-shaped groove structure with a width consistent with the thickness of the contact piece, ensuring that the embedded contact piece is not easily dislodged. The mounting grooves on both sides are symmetrically arranged. The lower side of the outlet end of the first mounting groove is set as a slope, while the lower side of the outlet end of the second mounting groove is set as an arc-shaped support point 760. The moving contact piece can use this arc-shaped support point as a fulcrum and deform under force.

[0040] The static contact piece 400 and the dynamic contact piece 500 are metal springs, which can directly achieve reset by their own deformation.

[0041] The stationary contact piece 400 and the moving contact piece 500 are respectively provided with stationary contacts and moving contacts, and the two are arranged facing each other. The stationary contacts and moving contacts can be silver contacts, which are welded and fixed on the contact pieces. In the initial state, the moving and stationary contacts are in contact and conducting.

[0042] A third mounting groove 730 is also provided on the lower side of the second mounting groove 720, such as...Figure 4 As shown, the third mounting groove 730 is provided with an elastic element 600 for driving the moving contact piece 500 to reset. The elastic element can be a spring, which further applies a force to the moving contact piece to reset.

[0043] One end of the third mounting groove 730 is provided with a hook 750 for limiting the installation position of the elastic element 600. There are two hooks 750, symmetrically arranged at both ends of the third mounting groove 730. The bottom of the spring is embedded in the third mounting groove and is limited by the hooks on both sides to ensure that it will not fall off.

[0044] The first mounting groove 710 is provided with a limiting rib 740 above it, and there is a gap between the two symmetrically arranged limiting ribs 740 for the contact bracket 62 to pass through. The limiting rib 740 provided above the first mounting groove ensures that the static contact piece is always in the first direction and that the dynamic contact piece can always be in contact with it when resetting.

[0045] like Figure 5 , Figure 6 and Figure 7 As shown, this utility model also provides a contactor, which includes a housing composed of a base 10 and a top cover 20. The housing is provided with the above-mentioned energy-saving coil frame 30, stationary iron core 70 and moving iron core assembly 60. The moving iron core assembly 60 includes a moving iron core 61 and a contact support 62. When the moving iron core 61 moves toward the stationary iron core 70, the contact support 62 can drive the moving contact piece 500 to move simultaneously and disconnect the moving contact piece 500 from the stationary contact piece 400.

[0046] The upper cover has stationary contacts 80 connected to terminals 40 at both ends. The contact bracket also has a moving contact 50. When the moving iron core is attracted, the contact bracket drives the moving contact to contact the stationary contact to achieve closing. When the two ends of the contact bracket are attracted, they move downward and drive the moving contact piece to move downward, thereby disconnecting the moving and stationary contact pieces.

[0047] The embodiments should not be regarded as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. An energy saving coil former characterized by: It comprises: A first end (100) arranged along a first direction; A second end (200) arranged in parallel with the first end (100); A winding part (300) arranged between the first end (100) and the second end (200) for winding a coil, and arranged along a second direction, the second direction being perpendicular to the first direction; The first end (100) is provided with a mounting groove (700) on one side or both sides, the mounting groove (700) is one or two groups, each group of mounting grooves (700) includes a first mounting groove (710) and a second mounting groove (720) arranged along the second direction, A static contact piece (400) is fixedly arranged in the first mounting groove (710), A dynamic contact piece (500) is fixedly arranged in the second mounting groove (720), and the dynamic contact piece (500) and the static contact piece (400) are in contact, one end of the dynamic contact piece (500) extends outward to form an extension section (510) for force, When the contactor is attracted, the dynamic contact piece (500) is disconnected from the static contact piece (400) under the action of the force generated by closing, when the contactor is disconnected, the dynamic contact piece (500) is reset and in contact with the static contact piece (400).

2. The energy-saving coil former according to claim 1, wherein: The static contact piece (400) and the dynamic contact piece (500) are metal springs.

3. The energy-saving coil former according to claim 2, wherein: The static contact piece (400) and the dynamic contact piece (500) are respectively provided with static contacts and dynamic contacts, and the two are oppositely arranged.

4. The energy-saving coil former according to claim 1, wherein: The lower side of the second mounting groove (720) is further provided with a third mounting groove (730), and the third mounting groove (730) is provided with an elastic member (600) for driving the dynamic contact piece (500) to reset.

5. The energy-saving coil former according to claim 4, wherein: One end of the third mounting groove (730) is provided with a hook (750) for limiting the installation position of the elastic member (600).

6. The energy-saving coil former of claim 5, wherein: The hook (750) is two, symmetrically arranged at both ends of the third mounting groove (730).

7. The energy-saving coil former of claim 1, wherein: The first mounting groove (710) and the second mounting groove (720) are Z-shaped.

8. The energy-saving coil former of claim 1, wherein: The first mounting groove (710) is provided with a limiting rib (740) above, and a gap is provided between the two limiting ribs (740) arranged symmetrically, which can pass through the contact support (62).

9. A contactor characterized by: It comprises a housing composed of a base (10) and an upper cover (20), the housing is provided with the energy-saving coil framework (30), the static iron core (70) and the dynamic iron core assembly (60) of any one of claims 1 to 8, the dynamic iron core assembly (60) comprises a dynamic iron core (61) and a contact support (62), when the dynamic iron core (61) moves towards the static iron core (70), the contact support (62) can drive the dynamic contact piece (500) to act simultaneously and disconnect the dynamic contact piece (500) from the static contact piece (400).

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