Coil structure and contactor

Abstract

The utility model relates to the technical field of contactors, in particular to a coil structure and a contactor. The coil structure comprises at least two coil frameworks, each coil framework comprises an upper connecting part, a connecting column and a lower connecting part, the two ends of the connecting column are connected with the upper connecting part and the lower connecting part respectively, and enameled wires are wound on the peripheral side of the connecting column. The first side edge of the upper connecting part is provided with a sliding groove and a protrusion, the protrusion is matched with the sliding groove, and the protrusion on one coil framework is connected with the sliding groove in the other coil framework in an inserted mode. And the chute on one coil framework is connected with the bulge on the other coil framework in an inserting manner. The two coil frameworks are stably connected through the limiting matching mode of the sliding grooves and the protrusions, so that the stability and reliability of the coil structure are improved, power consumption is reduced, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of contactors, in particular to a coil structure and a contactor. Background Art

[0002] Usually, the coil, as the core component of the contactor, can provide a certain electromagnetic attraction for the contactor. When the coil is energized, it generates magnetic attraction and closes the switch. A spring is connected between the switch and the base. When the coil is de-energized, the magnetic attraction disappears, and the spring returns to its original state under the action of elastic force, and the switch is disconnected.

[0003] In the prior art, some contactors adopt a single-coil structure, which will increase the starting power consumption of the contactor and increase the cost; another part of the contactors adopt a double-coil structure, but the stability is poor. During the operation of the armature attraction switch, the two coil frames of the double-coil structure will be displaced, thereby reducing the stability and reliability of the contactor.

[0004] Therefore, it is urgent to design a coil structure and a contactor to solve the above technical problems. Utility Model Content

[0005] The first purpose of the utility model is to provide a coil structure to improve its stability and reliability, reduce power consumption and save costs.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a coil structure, comprising:

[0008] At least two coil skeletons, the coil skeletons comprising an upper connecting portion, a connecting column and a lower connecting portion, two ends of the connecting column are respectively connected to the upper connecting portion and the lower connecting portion, and an enameled wire is wound around the outer circumference of the connecting column;

[0009] A slide groove and a protrusion are provided on the first side of the upper connecting portion, and the protrusion is adapted to the slide groove, wherein the protrusion on one of the coil frames is plug-connected with the slide groove on the other coil frame; and the slide groove on one of the coil frames is plug-connected with the protrusion on the other coil frame.

[0010] As an optional technical solution for a coil structure, a step portion and a groove are provided on the first side of the lower connecting portion, and the step portion is matched with the groove, wherein the step portion on one coil skeleton is matched with the groove on another coil skeleton; and the groove on one coil skeleton is matched with the step portion on the other coil skeleton.

[0011] As an optional technical solution for a coil structure, the coil structure also includes an upper connecting piece, the upper connecting portion has a second side, the second side is adjacent to the first side, a first slot is formed on the second side, and the upper connecting piece is clipped into the first slot.

[0012] As an optional technical solution for the coil structure, the two first slots of two adjacent upper connecting parts are connected to each other, and the upper connecting piece is clamped in the two adjacent first slots, so that the two adjacent enameled wires are connected in series.

[0013] As an optional technical solution of the coil structure, the coil structure further includes a lower connecting piece, a second slot is provided at the bottom of the lower connecting portion, and the lower connecting piece is connected to the second slot.

[0014] As an optional technical solution for a coil structure, the coil structure also includes an iron core, which includes an integrally formed base and at least two columns, the connecting column is a hollow structure, at least two columns are inserted into the connecting column, and the columns are arranged one-to-one with the connecting columns; the lower connecting portion is located on the base.

[0015] As an optional technical solution for the coil structure, a first limit block is provided at the bottom of the lower connecting portion, the first limit block is adapted to the side surface of the base, and the first limit block is used to limit the displacement of the base.

[0016] As an optional technical solution for the coil structure, the side surfaces of the first limiting block and the base are both in a broken line shape.

[0017] As an optional technical solution for the coil structure, the coil structure further includes an armature, the column passes through one end of the connecting column and is connected to the armature, and the armature is located on the upper end surface of the upper connecting portion.

[0018] As an optional technical solution for the coil structure, a plurality of second limit blocks are protruding from the upper end surface of the upper connecting portion, and the plurality of second limit blocks are arranged along the circumference of the armature, and the second limit blocks are adapted to the side surfaces of the armature.

[0019] The second purpose of the utility model is to provide a contactor, which has higher stability and reliability and lower energy consumption, thereby achieving the purpose of cost saving.

[0020] To achieve this purpose, the utility model adopts the following technical solutions:

[0021] The utility model provides a contactor, which comprises the coil structure mentioned above.

[0022] The beneficial effects of the utility model include at least:

[0023] The utility model provides a coil structure, which comprises at least two coil skeletons, wherein each coil skeleton comprises an upper connecting part, a connecting column and a lower connecting part, the two ends of the connecting column are respectively connected to the upper connecting part and the lower connecting part, and the outer peripheral side of the connecting column is wound with an enameled wire. A first side edge of the upper connecting part is provided with a slide groove and a protrusion, the protrusion is adapted to the slide groove, the protrusion on one coil skeleton is plugged and connected with the slide groove on the other coil skeleton; the slide groove on one coil skeleton is plugged and connected with the protrusion on the other coil skeleton. The two coil skeletons are stably connected by the limited matching mode of the slide groove and the protrusion. A first side edge of a part of the upper connecting part is provided with a slide groove, and a first side edge of another part is provided with a protrusion. When assembling the two coil skeletons, the operator slides the protrusion of one coil skeleton into the slide groove of the other coil skeleton through the slide groove, and at the same time, the protrusion of the other coil skeleton can also slide into the slide groove of one coil skeleton, thereby realizing the stable connection of the two coil skeletons, avoiding the phenomenon of relative displacement of the two coil skeletons, realizing the limiting effect, and improving the stability and reliability of the connection of the two coil skeletons. At the same time, the utility model adopts a double-coil structure, which has lower power consumption and saves costs compared to the single-coil structure in traditional technology.

[0024] The utility model also provides a contactor, which has higher stability and reliability and lower energy consumption, thereby achieving the purpose of cost saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the structure of the coil structure provided by an embodiment of the utility model at a first viewing angle;

[0027] Figure 2 A schematic diagram of the structure of the coil structure provided by an embodiment of the utility model at a second viewing angle;

[0028] Figure 3 An exploded view of the coil structure provided by an embodiment of the utility model;

[0029] Figure 4 A schematic diagram of the structure of two assembled coil skeletons provided in an embodiment of the utility model;

[0030] Figure 5 Schematic diagram of the structure of two coil skeletons before assembly provided by the embodiment of the utility model Figure 1 ;

[0031] Figure 6 Schematic diagram of the structure of two coil skeletons before assembly provided by the embodiment of the utility model Figure 2 .

[0032] Reference numerals

[0033] 100, coil skeleton; 110, upper connecting part; 1101, slide groove; 1102, protrusion; 1103, first slot; 1104, second limit block; 1105, first side; 1106, second side; 120, connecting column; 130, lower connecting part; 1301, step part; 1302, groove; 1303, second slot; 1304, first limit block; 200, enameled wire; 300, upper terminal piece; 400, lower terminal piece; 500, iron core; 510, base; 520, column; 600, armature. DETAILED DESCRIPTION

[0034] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present invention are further explained below with reference to the accompanying drawings and through specific implementation methods.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] This embodiment provides a coil structure, which has high stability and reliability, can reduce the power consumption of the contactor, and achieve the purpose of cost saving.

[0039] like Figure 1-Figure 5 As shown, the coil structure mainly includes at least two coil skeletons 100, wherein each coil skeleton 100 includes an upper connecting portion 110, a connecting column 120 and a lower connecting portion 130, the two ends of the connecting column 120 are respectively connected to the upper connecting portion 110 and the lower connecting portion 130, and the outer peripheral side of the connecting column 120 is wound with an enameled wire 200. The first side 1105 of the upper connecting portion 110 is provided with a slide groove 1101 and a protrusion 1102, and the protrusion 1102 is adapted to the slide groove 1101, and the protrusion 1102 on one coil skeleton 100 is plug-connected with the slide groove 1101 on the other coil skeleton 100; the slide groove 1101 on one coil skeleton 100 is plug-connected with the protrusion 1102 on the other coil skeleton 100.

[0040] Based on the above design, in this embodiment, the upper connecting portion 110, the connecting column 120 and the lower connecting portion 130 are integrally formed, which improves the processing efficiency of the coil skeleton 100 and improves the strength of the coil skeleton 100. The coil skeleton 100 in this embodiment can be set to multiple, for example, to two, three, four, etc., and the following description takes the setting of two coil skeletons 100 as an example.

[0041] The two coil skeletons 100 are stably connected by the limited matching mode of the slide groove 1101 and the protrusion 1102. Specifically, a first side edge 1105 of a part of the upper connecting portion 110 is provided with a slide groove 1101, and a first side edge 1105 of another part is provided with a protrusion 1102, and the protrusion 1102 in this embodiment is wedge-shaped. When assembling the two coil skeletons 100, the operator slides the wedge-shaped protrusion 1102 of one coil skeleton 100 into the slide groove 1101 of the other coil skeleton 100 through the slide groove 1101. At the same time, the protrusion 1102 of the other coil skeleton 100 can also slide into the slide groove 1101 of one coil skeleton 100, thereby achieving a stable connection between the two coil skeletons 100, avoiding displacement of the two coil skeletons 100 in the up-down and left-right directions, achieving a limited function, and improving the stability and reliability of the connection between the two coil skeletons 100.

[0042] In this embodiment, a single coil with a larger volume in the traditional technology is set as two double coil structures with smaller volumes. On the one hand, the height of the coil is reduced, so that the volume of the coil structure is miniaturized, and on the other hand, the power consumption of the contactor can be reduced, thereby achieving the purpose of cost saving. Specifically, the double coils (i.e., two enameled wires 200) in this embodiment are respectively the pull-in winding and the holding winding. The pull-in winding is energized at the moment of current connection. After the connection, both the pull-in winding and the holding winding are energized, and the auxiliary contact point (not shown in the figure) is disconnected, so that it will not overheat during long-term operation, thereby reducing the power consumption of the contactor and saving costs.

[0043] like Figure 4-Figure 5 As shown, in this embodiment, the first side 1105 of the lower connecting portion 130 is provided with a step portion 1301 and a groove 1302, and the step portion 1301 is matched with the groove 1302, wherein the step portion 1301 on one coil skeleton 100 is matched with the groove 1302 on the other coil skeleton 100; and the groove 1302 on one coil skeleton 100 is matched with the step portion 1301 on the other coil skeleton 100. Through the adaptive connection of the step portion 1301 and the groove 1302, the two coil skeletons 100 can be further limited, so as to avoid the displacement of the two coil skeletons 100 in the up-and-down direction or the rotational movement in the circumferential direction, and further improve the stability and reliability of the connection between the two coil skeletons 100.

[0044] like Figure 3-Figure 5As shown, in this embodiment, the coil structure also includes an upper wiring piece 300, the upper connecting portion 110 has a second side 1106, the second side 1106 is adjacent to the first side 1105, and a first slot 1103 is provided on the second side 1106. The upper wiring piece 300 is snapped into the first slot 1103, thereby achieving a fixed snap-fitting effect on the upper wiring piece 300, avoiding the risk of displacement or even falling off of the upper wiring piece 300 and the coil frame 100. The setting of the first slot 1103 can also save the space occupied by the assembly of the upper wiring piece 300, thereby miniaturizing the volume of the coil structure.

[0045] Further, in this embodiment, the two first slots 1103 of two adjacent upper connecting parts 110 are connected to each other, and the upper wiring piece 300 is connected in the two adjacent first slots 1103, so that the two adjacent enameled wires 200 are connected in series. That is to say, the upper wiring piece 300 in this embodiment is inserted into the two first slots 1103, and the end of the upper wiring piece 300 extends outside the first slots 1103 and is connected to the external power supply.

[0046] Optionally, in this embodiment, each coil skeleton 100 has two second side edges 1106 arranged on the same side, and a first slot 1103 is provided on the two second side edges 1106. Two upper wiring pieces 300 are provided, and the ends of the two upper wiring pieces 300 extend outside the first slot 1103 and are connected to an external power supply, thereby forming a closed loop and realizing the series connection of the enameled wires 200 on the two coil skeletons 100.

[0047] like Figure 1-Figure 3 , Figure 6 As shown, in this embodiment, the coil structure further includes a lower connecting piece 400, and a second clamping groove 1303 is provided at the bottom of the lower connecting portion 130, and the lower connecting piece 400 is clamped in the second clamping groove 1303. Thus, the lower connecting piece 400 is fixedly clamped, and the risk of displacement or even falling off of the lower connecting piece 400 and the coil frame 100 is avoided. The provision of the second clamping groove 1303 can also save the space occupied by the assembly of the lower connecting piece 400, thereby miniaturizing the volume of the coil structure.

[0048] Optionally, two lower connecting pieces 400 in this embodiment may be provided, and each lower connecting portion 130 is provided with a second card slot 1303 , and the second card slots 1303 are provided in a one-to-one correspondence with the lower connecting pieces 400 .

[0049] like Figure 3As shown, in this embodiment, the coil structure further includes an iron core 500, which includes an integrally formed base 510 and a column 520, the connecting column 120 is a hollow structure, the column 520 is inserted into the connecting column 120, and the column 520 and the connecting column 120 can be provided in multiples, and the column 520 and the connecting column 120 are provided one by one; the lower connecting portion 130 is located on the base 510. The iron core 500 can be made of soft iron or silicon steel material that is easily magnetized.

[0050] Optionally, the base 510 may be configured as a hexagonal or irregular shape, such as Figure 2 and Figure 6 As shown, a first limit block 1304 is provided at the bottom of the lower connecting portion 130, and the first limit block 1304 is adapted to the side of the base 510, and the first limit block 1304 is used to limit the displacement of the base 510. This avoids displacement or rotation of the base 510 during the operation of the coil structure, thereby improving stability and reliability.

[0051] Furthermore, the first limit block 1304 and the side surfaces of the base 510 in this embodiment are both in a broken line shape, so that the first limit block 1304 can limit at least two side surfaces of the base 510 , thereby improving the stability and reliability of the core 500 .

[0052] Preferably, a first limit block 1304 is provided at the bottom of each lower connecting portion 130 in this embodiment, and the two first limit blocks 1304 are centrally symmetrically arranged about the center of the base 510, thereby improving the limiting effect on the iron core 500 and further improving its stability and reliability.

[0053] like Figure 1-Figure 5 As shown, in this embodiment, the coil structure further includes an armature 600, and the column 520 passes through one end of the connecting column 120 to connect with the armature 600, and the armature 600 is located on the upper end surface of the upper connecting portion 110. A plurality of second limit blocks 1104 are convexly provided on the upper end surface of the upper connecting portion 110, and the plurality of second limit blocks 1104 are arranged along the circumference of the armature 600, and the second limit blocks 1104 are adapted to the side surfaces of the armature 600, and the second limit blocks 1104 are used to limit the displacement of the armature 600.

[0054] Optionally, the second limit block 1104 of each upper connecting part 110 can be set to multiple, for example, the second limit block 1104 can be set to two, three, four, etc., so as to improve the limiting effect on the armature 600 and avoid displacement of the armature 600.

[0055] Optionally, the top ends of the armature 600 and the column 520 in this embodiment are both provided with mounting holes, and screws are passed through the two mounting holes, thereby achieving a stable connection between the armature 600 and the column 520.

[0056] Optionally, two armatures 600 are provided in the present embodiment, and one armature 600 is provided on the upper end surface of each upper connecting portion 110 .

[0057] This embodiment also provides a contactor, which includes the coil structure. The contactor has higher stability and reliability, and lower energy consumption, thereby achieving the purpose of cost saving.

[0058] Optionally, the contactor may be an electromagnetic contactor or other types of contactors, which will not be described in detail here.

[0059] Obviously, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

[0060] Note that in the description of this specification, the reference terms "some embodiments", "other embodiments", etc., mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. Coil structure, characterized in that, include: At least two coil skeletons (100), the coil skeleton (100) comprising an upper connecting portion (110), a connecting column (120) and a lower connecting portion (130), two ends of the connecting column (120) being respectively connected to the upper connecting portion (110) and the lower connecting portion (130), and an enameled wire (200) being wound around the outer circumference of the connecting column (120); The first side edge (1105) of the upper connecting portion (110) is provided with a slide groove (1101) and a protrusion (1102), the protrusion (1102) being adapted to the slide groove (1101), the protrusion (1102) on one of the coil skeletons (100) being plug-connected with the slide groove (1101) on another of the coil skeletons (100); the slide groove (1101) on one of the coil skeletons (100) being plug-connected with the protrusion (1102) on another of the coil skeletons (100); The coil structure also includes an upper connecting piece (300), the upper connecting portion (110) has a second side (1106), the second side (1106) is adjacent to the first side (1105), a first slot (1103) is provided on the second side (1106), and the upper connecting piece (300) is snapped into the first slot (1103).

2. The coil structure according to claim 1, characterized in that: The first side edge (1105) of the lower connecting portion (130) is provided with a step portion (1301) and a groove (1302), and the step portion (1301) is matched with the groove (1302), wherein the step portion (1301) on one coil skeleton (100) is matched with the groove (1302) on another coil skeleton (100); and the groove (1302) on one coil skeleton (100) is matched with the step portion (1301) on another coil skeleton (100).

3. The coil structure according to claim 1, characterized in that: The two first clamping grooves (1103) of two adjacent upper connecting parts (110) are connected to each other, and the upper connecting piece (300) is clamped in the two adjacent first clamping grooves (1103), so that the two adjacent enameled wires (200) are connected in series.

4. The coil structure according to claim 1, characterized in that: The coil structure further comprises a lower connecting piece (400), a second slot (1303) is provided at the bottom of the lower connecting portion (130), and the lower connecting piece (400) is snap-connected in the second slot (1303).

5. The coil structure according to claim 1, characterized in that: The coil structure also includes an iron core (500), the iron core (500) including an integrally formed base (510) and at least two columns (520), the connecting column (120) presenting a hollow structure, at least two of the columns (520) being inserted into the corresponding connecting column (120), and the lower connecting portion (130) being located on the base (510).

6. The coil structure according to claim 5, characterized in that: A first limit block (1304) is provided at the bottom of the lower connecting portion (130), the first limit block (1304) is adapted to the side surface of the base (510), and the first limit block (1304) is used to limit the displacement of the base (510).

7. The coil structure according to claim 6, characterized in that: The side surfaces of the first limiting block (1304) and the base (510) are both in a broken line shape.

8. The coil structure according to claim 7, characterized in that: The coil structure also includes an armature (600), the column (520) passes through one end of the connecting column (120) and is connected to the armature (600), and the armature (600) is located on the upper end surface of the upper connecting portion (110).

9. The coil structure according to claim 8, characterized in that: A plurality of second limit blocks (1104) are convexly provided on the upper end surface of the upper connecting portion (110), and the plurality of second limit blocks (1104) are arranged along the circumference of the armature (600), and the second limit blocks (1104) are adapted to the side surfaces of the armature (600).

10. A contactor, characterized in that The contactor comprises the coil structure according to any one of claims 1-9.

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