Contactor auxiliary leading-out sheet and coil skeleton installation structure

Abstract

The utility model relates to a contactor auxiliary leading-out sheet and coil skeleton installation structure, comprising a double-coil skeleton which comprises a winding column, and an upper installation plate and a lower installation plate which are respectively formed on the upper side and the lower side of the winding column, one side of the lower installation plate is longitudinally provided with two positioning holes, and a circuit board is provided with connection holes corresponding to the positioning holes; the two auxiliary lead-out sheets are used for connecting the auxiliary lead-out pins and the circuit board, and each auxiliary lead-out sheet comprises an auxiliary lead-out punching sheet and a plastic strip; an assembling groove is formed in the plastic strip, a part of the auxiliary leading-out punching sheet is installed in the assembling groove in a matched mode, and the other part of the auxiliary leading-out punching sheet downwards extends out of the assembling groove and sequentially penetrates through the positioning hole and the connecting hole to be connected in an inserted mode. According to the scheme, the auxiliary leading-out sheet is formed by wrapping the auxiliary leading-out punching sheet and the plastic strip, the structural strength is greatly improved, the auxiliary leading-out sheet is not prone to breakage, meanwhile, the coil framework plays a role in supporting the auxiliary leading-out punching sheet, the positioning hole in the coil framework can be matched with the auxiliary leading-out punching sheet, and the auxiliary leading-out sheet can be prevented from shaking.

Description

Technical Field

[0001] The utility model relates to the technical field of contactors, in particular to an installation structure of an auxiliary lead-out piece and a coil skeleton of a contactor. Background Art

[0002] The auxiliary lead-out piece of the existing contactor is led out by an enameled wire. The drawing force strength is limited, and the enameled skin is easily damaged during the assembly process, and the wire is easily broken to form a virtual connection.

[0003] In addition, the coil skeleton and the coil lead-out piece are fixed by a plug-in method. During the use of the product, vibration will cause the coil lead-out piece to fall off, thereby pulling the enameled wire body and causing the coil function to fail. Summary of the Invention

[0004] In order to solve the above problems, the purpose of the utility model is to provide an installation structure of an auxiliary lead-out piece and a coil skeleton of a contactor. The auxiliary lead-out piece is formed by stamping and encapsulating a metal plate, with high structural strength and not easy to break. Positioning holes are opened on the double-coil skeleton and are inserted and matched with the ends of the auxiliary lead-out pieces. The assembly is simple and the structure is more firm. In addition, the coil lead-out piece and the coil skeleton are integrally formed, with a stable and reliable structure and not easy to fall off.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An installation structure of an auxiliary lead-out piece and a coil skeleton of a contactor, characterized by comprising:

[0007] A double-coil skeleton, located above the circuit board and used for coil winding, including a winding column and upper and lower mounting plates respectively formed on the upper and lower sides of the winding column. Two positioning holes are longitudinally opened on one side of the lower mounting plate, and connection holes corresponding to the positioning holes are opened on the circuit board;

[0008] Two auxiliary lead-out pieces, used to connect the auxiliary lead-out pins and the circuit board. The auxiliary lead-out piece includes an auxiliary lead-out punching piece and a plastic strip; an assembly groove is formed on the plastic strip, a part of the auxiliary lead-out punching piece is adaptively installed in the assembly groove, and the other part extends downward out of the assembly groove and sequentially passes through the positioning hole and the connection hole to form an insertion.

[0009] Preferably, a first support block is provided at the lower end of the positioning hole, and a first insertion channel corresponding to the positioning hole and the connection hole is constructed on the first support block.

[0010] Preferably, the inner wall circumference of the upper part of the positioning hole is constructed as a guiding inclined surface.

[0011] Preferably, support strips for supporting the auxiliary lead-out piece are formed by upward extension on both sides of the upper mounting plate.

[0012] Preferably, cuts are formed at the front and rear ends of the upper mounting plate on the side corresponding to the positioning holes, and a part of the auxiliary lead-out piece is longitudinally attached to the cuts.

[0013] Preferably, a plurality of reinforcing ribs are provided between the inner wall of the support bar and the upper mounting plate.

[0014] Preferably, a plurality of bumps are provided in the assembly groove, and assembly holes corresponding to the plurality of bumps are formed in the auxiliary lead-out punching piece.

[0015] Preferably, a coil lead-out piece electrically connected to the coil is provided on one side of the lower mounting plate far from the positioning hole, and the coil lead-out piece is integrally formed with the lower mounting plate.

[0016] Preferably, a second support block is further provided between the lower mounting plate and the circuit board. A plurality of insertion strips are formed on the coil lead-out piece, and the insertion strips longitudinally pass through the second support block and the circuit board to form an insertion connection.

[0017] The utility model adopts the above technical solutions. The auxiliary lead-out piece in the contactor includes an auxiliary lead-out punching piece and a plastic strip. The auxiliary lead-out punching piece is formed by stamping a metal plate and is wrapped with a plastic strip on the outside. The double-coil skeleton supports the auxiliary lead-out piece, and a positioning hole is formed on the double-coil skeleton and a connection hole is formed on the circuit board, which can be inserted and matched with the end of the auxiliary lead-out punching piece. In addition, the coil lead-out piece is integrally formed with the coil skeleton. This solution has the following beneficial effects:

[0018] 1. The auxiliary lead-out piece is formed by stamping and encapsulating a metal plate with glue, with high overall strength and not easily broken.

[0019] 2. The end of the auxiliary lead-out punching piece is inserted and matched with the positioning hole and the connection hole, which can make the auxiliary lead-out piece more firm during installation and the product during use, without shaking, effectively preventing the unstable situation of the lead-out piece detection function.

[0020] 3. The double-coil skeleton and the coil lead-out piece are integrally formed, with stable and reliable structure, extremely not easy to fall off, and can effectively prevent the coil from failing.

[0021] 4. The ends of the two auxiliary lead-out pieces and the insertion strips of the coil lead-out piece are inserted and fixed to the circuit board in a triangular relationship, which can effectively prevent the circuit board from falling off and failing. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the cooperation between the auxiliary lead-out piece, the coil skeleton and the circuit board.

[0023] Figure 2 It is an assembly schematic diagram of the auxiliary lead-out piece and the coil skeleton.

[0024] Figure 3 ForFigure 2 Assembly schematic diagram from another perspective.

[0025] Figure 4 Schematic diagram of the three-dimensional structure of the auxiliary lead-out piece.

[0026] Figure 5 Schematic diagram of the three-dimensional structure of the plastic strip.

[0027] Figure 6 Schematic diagram of the three-dimensional structure of the auxiliary lead-out punching piece.

[0028] Figure 7 Schematic diagram of the three-dimensional structure of the coil skeleton.

[0029] Figure 8 Schematic diagram of the three-dimensional structure of the coil skeleton from another perspective.

[0030] Figure 9 Schematic diagram of the cooperation between the coil lead-out piece and the circuit board. Detailed implementation manners

[0031] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, but should not be construed as limiting the present utility model.

[0032] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0034] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0036] As Figures 1 - 9 shown, a mounting structure of a contactor auxiliary lead-out piece and a coil bobbin includes:

[0037] A double-coil bobbin 1, located above a circuit board 2 and used for winding a coil 100, includes a winding post 3, an upper mounting plate 4 and a lower mounting plate 5 respectively formed on the upper and lower sides of the winding post 3. Two positioning holes 6 are longitudinally formed on one side of the lower mounting plate 5, and connection holes 7 corresponding to the positioning holes 6 are formed on the circuit board 2;

[0038] Two auxiliary lead-out pieces 8, used for connecting an auxiliary lead-out pin 200 and the circuit board 2. The auxiliary lead-out piece 8 includes an auxiliary lead-out punching piece 9 and a plastic strip 10; an assembly groove 11 is formed on the plastic strip 10, a part of the auxiliary lead-out punching piece 9 is adaptively installed in the assembly groove 11, and the other part extends downward and protrudes out of the assembly groove 11 and sequentially passes through the positioning holes 6 and the connection holes 7 to form a plug connection.

[0039] In the above technical solution, the auxiliary lead-out piece includes an auxiliary lead-out punching piece and a plastic strip. The auxiliary lead-out punching piece is formed by stamping a metal sheet and then encapsulating with a plastic strip, and has high overall strength and is not easy to break. In addition, the end of the auxiliary lead-out punching piece is in plug-in fit with the positioning hole and the connection hole, which can make the auxiliary lead-out piece more firm during installation and in the process of product use, without shaking, effectively preventing the unstable situation of the lead-out piece detection function.

[0040] Further, a first support block 12 is provided at the lower end of the positioning hole 6, and a first insertion channel corresponding to the positioning hole 6 and the connection hole 7 is constructed on the first support block 12. In this technical solution, the setting of the first support block can further improve the connection strength between the auxiliary lead-out sheet and the coil skeleton, and at the same time make the lower part of the auxiliary lead-out punching sheet move more smoothly during the downward movement.

[0041] Further, the inner wall circumference of the upper part of the positioning hole 6 is constructed as a guiding inclined surface 14. In this technical solution, the setting of the guiding inclined surface enables the lower end of the auxiliary lead-out punching sheet to quickly enter the positioning hole through the guiding inclined surface after contacting the edge of the positioning hole, realizing rapid assembly.

[0042] Further, support strips 15 for supporting the auxiliary lead-out sheet 8 are formed by upward extension on both sides of the upper mounting plate 4. In this technical solution, the setting of the support strips can effectively support the auxiliary lead-out sheet, improve the stability of the auxiliary lead-out sheet to a certain extent, and prevent shaking.

[0043] Further, cuts 16 are opened at the front and rear ends of the side of the upper mounting plate 4 corresponding to the positioning hole 6, and a part of the auxiliary lead-out sheet 8 is longitudinally attached to the cuts 16. In this technical solution, a part of the auxiliary lead-out sheet is longitudinally attached to the cuts 16, and the cuts can play a role in laterally supporting the auxiliary lead-out sheet, and at the same time prevent the auxiliary lead-out sheet from extending outward and causing the product volume to increase.

[0044] Further, a number of reinforcing ribs 17 are provided between the inner wall of the support strip 15 and the upper mounting plate 4. In this technical solution, the setting of the reinforcing ribs improves the connection strength between the support strip and the upper mounting plate, making the overall structure of the coil skeleton more stable.

[0045] Further, a number of convex blocks 18 are provided in the assembly groove 11, and assembly holes 19 corresponding to the number of convex blocks 18 are opened on the auxiliary lead-out punching sheet 9. In this technical solution, the cooperation of the convex blocks and the assembly holes can increase the contact area between the plastic strip and the auxiliary lead-out punching sheet, and improve the connection strength between the two.

[0046] Further, a coil lead-out sheet 20 electrically connected to the coil 100 is provided on the side of the lower mounting plate 5 far from the positioning hole 6, and the coil lead-out sheet 20 is integrally formed with the lower mounting plate 5. In this technical solution, the coil lead-out sheet is integrally formed with the lower mounting plate and is partially formed inside the lower mounting plate, which can greatly improve the connection strength between the coil lead-out sheet and the coil skeleton, with a stable and reliable structure, extremely difficult to fall off, and can effectively prevent coil failure.

[0047] Furthermore, a second support block 21 is also provided between the lower mounting plate 5 and the circuit board 2. A plurality of insertion strips 22 are formed on the coil lead-out piece 20. The insertion strips 22 longitudinally pass through the second support block 21 and the circuit board 2 to form an insertion connection. In this technical solution, the insertion strips pass through the second support block, which can improve the connection strength between the insertion strips and the coil bobbin. At the same time, the insertion cooperation positions between the insertion strips and the auxiliary lead-out punching pieces and the circuit board on both sides are arranged in a triangular shape, and the fixing method is reliable, which can effectively prevent the circuit board from falling off and failing.

[0048] In this specific embodiment, aiming at the problems that the auxiliary lead-out piece of the existing contactor is led out by a varnished wire, the varnish is easily damaged during the assembly process, the wire is easily pulled off to form a virtual connection, and there is a risk of the coil lead-out piece falling off, the above solution forms the auxiliary lead-out piece by encapsulating the auxiliary lead-out punching piece with a plastic strip, greatly improving the structural strength and being not easy to break. At the same time, the coil bobbin plays a supporting role for the auxiliary lead-out punching piece, and the positioning holes on the coil bobbin can cooperate with the auxiliary lead-out punching piece to prevent the auxiliary lead-out piece from shaking. In addition, the coil lead-out piece part is integrally formed on the coil bobbin, greatly improving the structural strength between the two, making the coil lead-out piece not easy to fall off. And, the insertion cooperation positions between the insertion strips and the auxiliary lead-out punching pieces and the circuit board on both sides are arranged in a triangular shape, which can effectively prevent the circuit board from falling off and failing.

[0049] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do 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.

[0050] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principle and purpose of the present invention.

Claims

1. A contactor auxiliary lead-out piece and coil frame mounting structure, characterized in that: include: A double coil frame (1) is located above the circuit board (2) and is used for winding the coil (100), comprising a winding column (3) and an upper mounting plate (4) and a lower mounting plate (5) respectively formed on the upper and lower sides of the winding column (3), wherein two positioning holes (6) are longitudinally provided on one side of the lower mounting plate (5), and a connecting hole (7) is provided on the circuit board (2) corresponding to the positioning hole (6); Two auxiliary lead-out pieces (8) are used to connect the auxiliary lead-out needles (200) and the circuit board (2). The auxiliary lead-out pieces (8) include auxiliary lead-out punching pieces (9) and a plastic strip (10). The plastic strip (10) is formed with an assembly groove (11). A portion of the auxiliary lead-out punching piece (9) is adapted to be installed in the assembly groove (11), and another portion extends downwardly out of the assembly groove (11) and passes through the positioning hole (6) and the connection hole (7) in sequence to form a plug-in connection.

2. A contactor auxiliary lead-out piece and coil frame mounting structure according to claim 1, characterized in that: A first support block (12) is provided at the lower end of the positioning hole (6), and a first plugging channel corresponding to the positioning hole (6) and the connecting hole (7) is constructed on the first support block (12).

3. A contactor auxiliary lead-out piece and coil frame mounting structure according to claim 2, characterized in that: The upper inner wall of the positioning hole (6) is constructed as a guide slope (14) in the circumferential direction.

4. A contactor auxiliary lead-out piece and coil frame mounting structure according to claim 1, characterized in that: Both sides of the upper mounting plate (4) extend upward to form support bars (15) for supporting the auxiliary lead-out plates (8).

5. A contactor auxiliary lead-out piece and coil frame mounting structure according to claim 4, characterized in that: The upper mounting plate (4) is provided with cutouts (16) at the front and rear ends of a side corresponding to the positioning hole (6), and a portion of the auxiliary lead-out piece (8) is longitudinally fitted in the cutout (16).

6. A contactor auxiliary lead-out piece and coil frame mounting structure according to claim 5, characterized in that: A plurality of reinforcing ribs (17) are provided between the inner wall of the support bar (15) and the upper mounting plate (4).

7. A contactor auxiliary lead-out piece and coil frame mounting structure according to claim 1, characterized in that: The assembly groove (11) is provided with a plurality of protrusions (18), and the auxiliary lead-out punch (9) is provided with assembly holes (19) corresponding to the plurality of protrusions (18).

8. The contactor auxiliary lead-out piece and coil frame mounting structure according to claim 1, characterized in that: A coil lead-out piece (20) electrically connected to the coil (100) is provided on a side of the lower mounting plate (5) away from the positioning hole (6); the coil lead-out piece (20) is integrally formed with the lower mounting plate (5).

9. A contactor auxiliary lead-out piece and coil frame mounting structure according to claim 8, characterized in that: A second support block (21) is further provided between the lower mounting plate (5) and the circuit board (2), and a plurality of plug-in strips (22) are formed on the coil lead-out sheet (20), the plug-in strips (22) longitudinally passing through the second support block (21) and the circuit board (2) to form a plug-in connection.

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