Coil skeleton assembly and manufacturing method thereof, coil assembly, and contactor

Abstract

To provide a coil skeleton assembly and a method of manufacturing the same, which simplify an assembly process of a contactor, improve manufacturing efficiency, and reduce manufacturing cost.SOLUTION: The coil skeleton assembly comprises a coil skeleton (3) used for winding a coil (4) of a contactor, a magnetic tube (2) fixed to the coil skeleton (3), and a plurality of signal terminals (1) fixed to the coil skeleton (3). The coil skeleton (3) is directly molded on the magnetic tube (2) and the plurality of signal terminals (1) by embedded injection molding, and the coil skeleton (3), the magnetic tube (2) and the plurality of signal terminals (1) are formed into an integral piece, which can simplify the assembly process of the contactor, improve the manufacturing efficiency of the contactor, and reduce the manufacturing cost of the contactor.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Chinese Patent Application No. CN202411124471.3, filed with the State Intellectual Property Office of China on August 15, 2024, the entire disclosure of which is incorporated herein by reference.

[0002] The present invention relates to a coil skeleton assembly, a coil assembly comprising the coil skeleton assembly, a contactor comprising the coil assembly, and a method for manufacturing the coil skeleton assembly. [Background technology]

[0003] In the prior art, a contactor generally includes a coil skeleton, a coil wound around the coil skeleton, a number of signal terminals assembled to the coil skeleton, and a magnetic tube assembled to the lower end of the coil skeleton. In the prior art, the coil skeleton of the contactor is a separate injection-molded part whose only function is to wind and fix the coil. The signal terminals and magnetic tube of the contactor must be separately assembled to the coil skeleton. This not only complicates the coil skeleton structure, but also complicates the assembly process of the contactor, reducing the manufacturing efficiency of the contactor and increasing manufacturing costs. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention has been made to overcome or mitigate at least one aspect of the above disadvantages. [Means for solving the problem]

[0005] According to an aspect of the present invention, there is provided a coil skeleton assembly including: a coil skeleton used for winding a contactor coil around the coil skeleton; a magnetic tube fixed to the coil skeleton; and a plurality of signal terminals fixed to the coil skeleton. The coil skeleton is directly molded onto the magnetic tube and the plurality of signal terminals by embedment injection molding, so that the coil skeleton, the magnetic tube, and the plurality of signal terminals are formed into an integral part.

[0006] According to an exemplary embodiment of the present invention, the plurality of signal terminals include a pair of coil signal terminals for electrically connecting to both ends of the coil of the contactor, respectively, and / or a pair of auxiliary contact signal terminals used for electrically connecting to a pair of auxiliary contacts of the contactor, respectively.

[0007] According to another exemplary embodiment of the present invention, the plurality of signal terminals include a pair of coil signal terminals, one ends of which are exposed from the outer surface of the coil skeleton for electrical connection to both ends of the coil of the contactor, respectively, and a pair of auxiliary contact signal terminals, one ends of which are exposed from the outer surface of the coil skeleton for electrical connection to a pair of auxiliary contacts of the contactor, respectively.

[0008] According to another exemplary embodiment of the present invention, the other ends of the pair of coil signal terminals and the other ends of the pair of auxiliary contact signal terminals are arranged in a row for insertion into a signal connector and for electrical contact with a plurality of mating signal terminals of the signal connector.

[0009] According to another exemplary embodiment of the present invention, the coil skeleton has a mating portion formed with a slot for inserting a signal connector, and the other ends of the pair of coil signal terminals and the other ends of the pair of auxiliary contact signal terminals extend into the slot of the mating portion.

[0010] According to another exemplary embodiment of the present invention, the coil signal terminal has a flat body located between both ends of the coil signal terminal, the body of the coil signal terminal is perpendicular to the axial direction of the coil skeleton and is wrapped around the coil skeleton, and after an end of the coil is wrapped around and connected to one end of the coil signal terminal, the one end of the coil signal terminal is bent 90 degrees relative to the body of the coil signal terminal, and the other end of the coil signal terminal is bent 90 degrees relative to the body of the coil signal terminal or is not bent relative to the body.

[0011] According to another exemplary embodiment of the present invention, the auxiliary contact signal terminal has a flat body located between both ends of the auxiliary contact signal terminal, the body of the auxiliary contact signal terminal is perpendicular to the axial direction of the coil skeleton and is wrapped around the coil skeleton, one end of the auxiliary contact signal terminal is bent 90 degrees relative to the body of the auxiliary contact signal terminal, and the other end of the auxiliary contact signal terminal is either bent 90 degrees relative to the body of the auxiliary contact signal terminal or is not bent relative to the body.

[0012] According to another exemplary embodiment of the present invention, the coil skeleton includes a cylindrical body having upper and lower ends opposite in an axial direction of the cylinder, an upper flange formed at the upper end of the cylinder, and a lower flange formed at the lower end of the cylinder, the cylinder being used for winding a coil, and the upper and lower flanges being used for abutting the upper and lower ends of the coil, respectively.

[0013] According to another exemplary embodiment of the present invention, a plurality of signal terminals are fixed to the upper flange of the coil skeleton, and a magnetic tube is fixed to the lower end of the cylindrical body of the coil skeleton.

[0014] According to another aspect of the present invention, there is provided a coil skeleton assembly. The coil skeleton assembly includes a coil skeleton used for winding a contactor coil around the coil skeleton, a magnetic tube fixed to the coil skeleton, and a terminal module. The terminal module includes a plurality of signal terminals and a retainer that holds the plurality of signal terminals together. The coil skeleton is directly molded onto the magnetic tube and the terminal module by embedment injection molding, so that the coil skeleton, magnetic tube, and terminal module are formed as an integral part.

[0015] In accordance with an exemplary embodiment of the present invention, the retainer is molded directly onto the plurality of signal terminals by embedding injection molding, such that the retainer and the plurality of signal terminals are formed in a single piece.

[0016] According to another exemplary embodiment of the present invention, a plurality of positioning posts are formed on the holder, and the positioning posts are distributed at intervals on the holder to achieve positioning between the holder and the coil skeleton.

[0017] According to another exemplary embodiment of the present invention, the plurality of signal terminals include a pair of coil signal terminals for electrically connecting to both ends of the coil of the contactor, respectively, and / or a pair of auxiliary contact signal terminals used for electrically connecting to a pair of auxiliary contacts of the contactor.

[0018] According to another exemplary embodiment of the present invention, the plurality of signal terminals include a pair of coil signal terminals, one ends of which are exposed from the outer surface of the coil skeleton for electrical connection to both ends of the coil of the contactor, respectively, and a pair of auxiliary contact signal terminals, one ends of which are exposed from the outer surface of the coil skeleton for electrical connection to a pair of auxiliary contacts of the contactor, respectively.

[0019] According to another exemplary embodiment of the present invention, the other ends of the pair of coil signal terminals and the other ends of the pair of auxiliary contact signal terminals are arranged in a row for insertion into a signal connector and for electrical contact with a plurality of mating signal terminals of the signal connector.

[0020] According to another exemplary embodiment of the present invention, the coil skeleton has a mating portion formed with a slot for inserting a signal connector, and the other ends of the pair of coil signal terminals and the other ends of the pair of auxiliary contact signal terminals extend into the slot of the mating portion.

[0021] According to another exemplary embodiment of the present invention, the coil signal terminal has a flat body located between both ends of the coil signal terminal, the body of the coil signal terminal is perpendicular to the axial direction of the coil skeleton and is wrapped around the coil skeleton, and after an end of the coil is wrapped around and connected to one end of the coil signal terminal, the one end of the coil signal terminal is bent 90 degrees relative to the body of the coil signal terminal, and the other end of the coil signal terminal is bent 90 degrees relative to the body of the coil signal terminal or is not bent relative to the body.

[0022] According to another exemplary embodiment of the present invention, the auxiliary contact signal terminal has a flat body located between both ends of the auxiliary contact signal terminal, the body of the auxiliary contact signal terminal is perpendicular to the axial direction of the coil skeleton and is wrapped around the coil skeleton, one end of the auxiliary contact signal terminal is bent 90 degrees relative to the body of the auxiliary contact signal terminal, and the other end of the auxiliary contact signal terminal is either bent 90 degrees relative to the body of the auxiliary contact signal terminal or is not bent relative to the body.

[0023] According to another exemplary embodiment of the present invention, the coil skeleton includes a cylindrical body having upper and lower ends opposite in an axial direction of the cylinder, an upper flange formed at the upper end of the cylinder, and a lower flange formed at the lower end of the cylinder, the cylinder being used for winding a coil, and the upper and lower flanges being used for abutting the upper and lower ends of the coil, respectively.

[0024] According to another exemplary embodiment of the present invention, the terminal module is fixed to the upper flange of the coil skeleton, and the magnetic tube is fixed to the lower end of the cylindrical body of the coil skeleton.

[0025] According to another aspect of the present invention, there is provided a coil assembly comprising the above-described coil skeleton assembly and a coil wound around the coil skeleton, wherein the plurality of signal terminals include a pair of coil signal terminals, and both ends of the coil are electrically connected to one ends of the pair of coil signal terminals, respectively.

[0026] According to another aspect of the present invention, there is provided a contactor including a housing, a pair of auxiliary contacts provided in the housing, and the above-described coil assembly provided in the housing, wherein the plurality of signal terminals include a pair of auxiliary contact signal terminals, and the pair of auxiliary contacts are electrically connected to one ends of the pair of auxiliary contact signal terminals, respectively.

[0027] According to another aspect of the present invention, there is provided a method for producing a coil scaffold, comprising the steps of: providing a plurality of signal terminals and a magnetic tube; forming the coil skeleton directly onto the plurality of signal terminals and the magnetic tube by an embedded injection molding technique, so that the coil skeleton, the plurality of signal terminals, and the magnetic tube are an integral part; A method is provided, comprising:

[0028] According to another aspect of the present invention, there is provided a method for producing a coil scaffold, comprising the steps of: providing a terminal module including a plurality of signal terminals and a retainer that retains the plurality of signal terminals together; forming the coil skeleton directly onto the terminal module and the magnetic tube by an embedded injection molding technique, so that the coil skeleton, the terminal module, and the magnetic tube are an integral part; A method is provided, comprising:

[0029] According to another aspect of the present invention, there is provided a method for producing a coil scaffold, comprising the steps of: providing a plurality of signal terminals; directly molding the carrier onto the plurality of signal terminals by an under-molding injection molding process to obtain a terminal module including the plurality of signal terminals and the carrier; forming the coil skeleton directly onto the terminal module and the magnetic tube by an embedded injection molding technique, so that the coil skeleton, the terminal module, and the magnetic tube are an integral part; A method is provided, comprising:

[0030] In the above exemplary embodiments according to the present invention, the coil skeleton is directly injection molded onto the signal terminal and the magnetic tube, which simplifies the assembly process of the contactor, improves manufacturing efficiency, and reduces manufacturing costs.

[0031] These and other features of the present invention will become more apparent from the detailed description of illustrative embodiments of the invention taken in conjunction with the accompanying drawings. [Brief explanation of the drawings]

[0032] [Figure 1] 1 is a diagrammatic top perspective view of a coil skeleton assembly in accordance with an exemplary embodiment of the present invention; [Figure 2] FIG. 1 is a diagrammatic bottom perspective view of a coil backbone assembly in accordance with an exemplary embodiment of the present invention. [Figure 3] 1 is an illustration of an exploded view of a coil backbone assembly in accordance with an exemplary embodiment of the present invention; [Figure 4] 1 is a diagrammatic perspective view of a plurality of signal terminals according to an exemplary embodiment of the present invention; [Figure 5] 1 is a diagrammatic perspective view of a coil assembly in accordance with an exemplary embodiment of the present invention; [Figure 6] FIG. 10 is a diagrammatic top perspective view of a coil skeleton assembly according to another exemplary embodiment of the present invention. [Figure 7] FIG. 10 is a diagrammatic bottom perspective view of a coil skeleton assembly according to another exemplary embodiment of the present invention. [Figure 8] FIG. 10 is an illustrative exploded view of a coil skeleton assembly according to another exemplary embodiment of the present invention. [Figure 9] 1 is a diagrammatic top perspective view of a terminal module in accordance with an exemplary embodiment of the present invention; [Figure 10] 1 is a diagrammatic bottom perspective view of a terminal module in accordance with an exemplary embodiment of the present invention; [Figure 11] 1 is an illustration of an exploded view of a terminal module in accordance with an exemplary embodiment of the present invention; [Figure 12] FIG. 10 is a diagrammatic perspective view of a coil skeleton assembly according to another exemplary embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0033] Exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. Like reference numerals refer to like elements throughout the drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.

[0034] In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are diagrammatically shown to simplify the drawings.

[0035] According to a general aspect of the present invention, there is provided a coil skeleton assembly, the coil skeleton including: a coil skeleton used for winding a contactor coil around the coil skeleton; a magnetic tube fixed to the coil skeleton; and a plurality of signal terminals fixed to the coil skeleton. The coil skeleton is directly molded onto the magnetic tube and the plurality of signal terminals by embedment injection molding, so that the coil skeleton, the magnetic tube, and the plurality of signal terminals are formed into a single piece.

[0036] According to another general aspect of the present invention, there is provided a coil skeleton assembly. The coil skeleton assembly includes a coil skeleton used for winding a contactor coil around the coil skeleton, a magnetic tube fixed to the coil skeleton, and a terminal module. The terminal module includes a plurality of signal terminals and a retainer that holds the plurality of signal terminals together. The coil skeleton is directly molded onto the magnetic tube and terminal module by embedment injection molding, so that the coil skeleton, magnetic tube, and terminal module are formed as a single piece.

[0037] According to another general aspect of the present invention, there is provided a coil assembly including the above-described coil skeleton assembly and a coil wound around the coil skeleton, wherein the plurality of signal terminals include a pair of coil signal terminals, and both ends of the coil are electrically connected to one ends of the pair of coil signal terminals, respectively.

[0038] According to another general aspect of the present invention, there is provided a contactor including a housing, a pair of auxiliary contacts provided in the housing, and the above-described coil assembly provided in the housing, wherein the plurality of signal terminals include a pair of auxiliary contact signal terminals, and the pair of auxiliary contacts are electrically connected to one ends of the pair of auxiliary contact signal terminals, respectively.

[0039] According to another general concept of the present invention, there is provided a method for manufacturing a coil skeleton, the method including the steps of providing a plurality of signal terminals and a magnetic tube, and forming the coil skeleton directly onto the plurality of signal terminals and the magnetic tube by an embedded injection molding technique, so that the coil skeleton, the plurality of signal terminals, and the magnetic tube are an integral part.

[0040] In accordance with another general concept of the present invention, there is provided a method for manufacturing a coil skeleton, the method including the steps of providing a terminal module including a plurality of signal terminals and a retainer that retains the plurality of signal terminals to one another, and forming the coil skeleton directly onto the terminal module and magnetic tube by an embedded injection molding technique, so that the coil skeleton, terminal module, and magnetic tube are an integral part.

[0041] According to another general concept of the present invention, there is provided a method for manufacturing a coil skeleton, the method including the steps of providing a plurality of signal terminals; molding a retainer directly onto the plurality of signal terminals by an embedded injection molding process to obtain a terminal module including the plurality of signal terminals and the retainer; and forming the coil skeleton directly onto the terminal module and magnetic tube by embedded injection molding techniques, so that the coil skeleton, terminal module, and magnetic tube are an integral part.

[0042] 1 to 5 show a first embodiment according to the present invention. Of these figures, Fig. 1 is an explanatory perspective view from above of a coil skeleton assembly according to an exemplary embodiment of the present invention, Fig. 2 is an explanatory perspective view from below of a coil skeleton assembly according to an exemplary embodiment of the present invention, Fig. 3 is an explanatory exploded view of the coil skeleton assembly according to an exemplary embodiment of the present invention, Fig. 4 is an explanatory perspective view of a plurality of signal terminals 1 according to an exemplary embodiment of the present invention, and Fig. 5 is an explanatory perspective view of a coil assembly according to an exemplary embodiment of the present invention.

[0043] As shown in FIGS. 1 to 5 , an exemplary embodiment of the present invention discloses a coil skeleton assembly. The coil skeleton assembly includes a coil skeleton 3, a magnetic tube 2, and a plurality of signal terminals 1. The coil skeleton 3 is used to wind a contactor coil 4 thereon. The magnetic tube 2 is fixed to the coil skeleton 3. The plurality of signal terminals 1 are fixed to the coil skeleton 3. The coil skeleton 3 is directly molded onto the magnetic tube 2 and the plurality of signal terminals 1 by embedding injection molding, thereby forming the coil skeleton 3, the magnetic tube 2, and the plurality of signal terminals 1 into an integral part.

[0044] As shown in Figures 1 to 5, in the illustrated embodiment, the multiple signal terminals 1 include a pair of coil signal terminals 1' and / or a pair of auxiliary contact signal terminals 1". The pair of coil signal terminals 1' are used to electrically connect both ends 4a of the coil 4 of the contactor. The pair of auxiliary contact signal terminals 1" are used to electrically connect to a pair of auxiliary contacts of the contactor.

[0045] As shown in Figures 1 to 5, in the illustrated embodiment, the multiple signal terminals 1 include a pair of coil signal terminals 1' and a pair of auxiliary contact signal terminals 1". One end portions 1a of the pair of coil signal terminals 1' are exposed from the outer surface of the coil skeleton 3 and are used for electrical connection to both end portions 4a of the coil 4 of the contactor, respectively. One end portions 1a of the pair of auxiliary contact signal terminals 1" are exposed from the outer surface of the coil skeleton 3 and are used for electrical connection to a pair of auxiliary contacts of the contactor, respectively.

[0046] As shown in FIGS. 1 to 5, in the illustrated embodiment, the other ends 1b of the pair of coil signal terminals 1′ and the other ends 1b of the pair of auxiliary contact signal terminals 1″ are arranged in a row to be inserted into a signal connector (not shown) and to make electrical contact with a plurality of mating signal terminals (not shown) of the signal connector.

[0047] 1 to 5, in the illustrated embodiment, the coil signal terminal 1' has a flat body located between its two end portions, and the body of the coil signal terminal 1' is perpendicular to the axial direction of the coil skeleton 3 and is wrapped around the coil skeleton 3. In the illustrated embodiment, after both end portions 4a of the coil 4 are wound around and connected to one end portion 1a of the pair of coil signal terminals 1', one end portion 1a of the coil signal terminal 1' is bent 90 degrees relative to the body of the coil signal terminal 1', and the other end portion 1b of the coil signal terminal 1' may or may not be bent 90 degrees relative to the body of the coil signal terminal 1', as required.

[0048] As shown in FIGS. 1 to 5, in the illustrated embodiment, the auxiliary contact signal terminal 1" has a flat body located between its opposite ends, and the body of the auxiliary contact signal terminal 1" is perpendicular to the axial direction of the coil skeleton 3 and is wrapped around the coil skeleton 3. One end 1a of the auxiliary contact signal terminal 1" is bent 90 degrees relative to the body of the auxiliary contact signal terminal 1", and the other end 1b of the auxiliary contact signal terminal 1" may or may not be bent 90 degrees relative to the body of the auxiliary contact signal terminal 1", as required.

[0049] As shown in FIGS. 1 to 5, in the illustrated embodiment, the coil skeleton 3 includes a cylindrical body 30, an upper flange 31, and a lower flange 32. The cylindrical body 30 has an upper end and a lower end that are opposite in the axial direction. The upper flange 31 is formed at the upper end of the cylindrical body 30. The lower flange 32 is formed at the lower end of the cylindrical body 30. The cylindrical body 30 is used for winding the coil 4, and the upper flange 31 and the lower flange 32 are used to abut against the upper end and lower end of the coil 4, respectively.

[0050] As shown in Figures 1 to 5, in the illustrated embodiment, multiple signal terminals 1 are fixed to the upper flange 31 of the coil skeleton 3, and the magnetic tube 2 is fixed to the lower end of the cylindrical body 30 of the coil skeleton 3.

[0051] 1 to 5, a coil assembly is also disclosed in another exemplary embodiment of the present invention. The coil assembly includes the above-mentioned coil skeleton assembly and a coil 4 wound around the coil skeleton 3. The multiple signal terminals 1 include a pair of coil signal terminals 1', and both ends 4a of the coil 4 are electrically connected to one ends 1a of the pair of coil signal terminals 1', respectively.

[0052] As shown in FIGS. 1 to 5, a contactor is also disclosed in another exemplary embodiment of the present invention. The contactor includes a housing (not shown), a pair of auxiliary contacts (not shown) disposed in the housing, and the above-described coil assembly. The signal terminals 1 of the coil assembly include a pair of auxiliary contact signal terminals 1'', and the pair of auxiliary contacts are electrically connected to one end 1a of the pair of auxiliary contact signal terminals 1'', respectively.

[0053] As shown in Figures 1 to 5, in another exemplary embodiment of the present invention, a method for manufacturing a coil skeleton is also disclosed. The method for manufacturing the coil skeleton includes: S11: Providing a plurality of signal terminals 1 and a magnetic tube 2; S12: By using an embedded injection molding technique, the coil skeleton 3 is directly formed on the plurality of signal terminals 1 and the magnetic tube 2, and the coil skeleton 3, the plurality of signal terminals 1, and the magnetic tube 2 are integrated into one part; Includes:

[0054] 6 to 12 show a second embodiment according to the present invention. Of these figures, Fig. 6 is an illustrative perspective view, as seen from above, of a coil skeleton assembly according to another exemplary embodiment of the present invention, Fig. 7 is an illustrative perspective view, as seen from below, of a coil skeleton assembly according to another exemplary embodiment of the present invention, Fig. 8 is an illustrative exploded view of a coil skeleton assembly according to another exemplary embodiment of the present invention, Fig. 9 is an illustrative perspective view, as seen from above, of a terminal module 10 according to an exemplary embodiment of the present invention, Fig. 10 is an illustrative perspective view, as seen from below, of a terminal module 10 according to an exemplary embodiment of the present invention, Fig. 11 is an illustrative exploded view of the terminal module 10 according to an exemplary embodiment of the present invention, and Fig. 12 is an illustrative perspective view of a coil skeleton assembly according to another exemplary embodiment of the present invention.

[0055] As shown in Figures 6 to 12, an exemplary embodiment of the present invention discloses a coil skeleton assembly. The coil skeleton assembly includes a coil skeleton 3, a magnetic tube 2, and a terminal module 10. The coil skeleton 3 is used to wind a contactor coil 4 thereon (see Figure 5). The magnetic tube 2 is fixed to the coil skeleton 3. The terminal module 10 includes a plurality of signal terminals 1 and a holder 11. The holder 11 holds the plurality of signal terminals 1 together. The coil skeleton 3 is directly molded onto the magnetic tube 2 and the terminal module 10 by embedding injection molding, making the coil skeleton 3, the magnetic tube 2, and the terminal module 10 into an integrated part.

[0056] 6 to 12, in the illustrated embodiment, the retainer 11 is directly molded onto the signal terminals 1 by insert injection molding, making the retainer 11 and the signal terminals 1 into an integrated part. However, the present invention is not limited to the illustrated embodiment. For example, a plurality of terminal sockets may be formed in the retainer 11, and the signal terminals 1 may be inserted into the plurality of terminal sockets of the retainer 11, respectively.

[0057] As shown in Figures 6 to 12, in the illustrated embodiment, a plurality of positioning pillars 11a are formed on the holder 11, and the plurality of positioning pillars 11a are distributed at intervals on the holder 11 to achieve positioning between the holder 11 and the coil skeleton 3.

[0058] As shown in Figures 6 to 12, in the illustrated embodiment, the multiple signal terminals 1 include a pair of coil signal terminals 1' and / or a pair of auxiliary contact signal terminals 1". The pair of coil signal terminals 1' are used to electrically connect both ends 4a of the coil 4 of the contactor, respectively. The pair of auxiliary contact signal terminals 1" are used to electrically connect to a pair of auxiliary contacts of the contactor, respectively.

[0059] As shown in Figures 6 to 12, in the illustrated embodiment, the multiple signal terminals 1 include a pair of coil signal terminals 1' and a pair of auxiliary contact signal terminals 1". One end portions 1a of the pair of coil signal terminals 1' are exposed from the outer surface of the coil skeleton 3 and are used for electrical connection to both end portions 4a of the coil 4 of the contactor, respectively. One end portions 1a of the pair of auxiliary contact signal terminals 1" are exposed from the outer surface of the coil skeleton 3 and are used for electrical connection to a pair of auxiliary contacts of the contactor, respectively.

[0060] As shown in FIGS. 6 to 12, in the illustrated embodiment, the other ends 1b of the pair of coil signal terminals 1′ and the other ends 1b of the pair of auxiliary contact signal terminals 1″ are arranged in a row to be inserted into a signal connector and to make electrical contact with a plurality of mating signal terminals of the signal connector.

[0061] 6 to 12, in the illustrated embodiment, the coil skeleton 3 has a fitting portion 33 in which a slot 303 for inserting a signal connector is formed. The other ends 1b of the pair of coil signal terminals 1' and the other ends 1b of the pair of auxiliary contact signal terminals 1" extend into the slot 303 of the fitting portion 33.

[0062] 6 to 12, in the illustrated embodiment, the coil signal terminal 1' has a flat main body located between both end portions, and the main body of the coil signal terminal 1' is perpendicular to the axial direction of the coil skeleton 3 and is wrapped around the coil skeleton 3. In the illustrated embodiment, after both end portions 4a of the coil 4 are wound around and connected to one end portion 1a of the pair of coil signal terminals 1', one end portion 1a of the coil signal terminal 1' is bent 90 degrees relative to the main body of the coil signal terminal 1', and the other end portion 1b of the coil signal terminal 1' may or may not be bent 90 degrees relative to the main body of the coil signal terminal 1', as required.

[0063] As shown in FIGS. 6 to 12, in the illustrated embodiment, the auxiliary contact signal terminal 1" has a flat body located between its opposite ends, and the body of the auxiliary contact signal terminal 1" is perpendicular to the axial direction of the coil skeleton 3 and is wrapped around the coil skeleton 3. One end 1a of the auxiliary contact signal terminal 1" is bent 90 degrees relative to the body of the auxiliary contact signal terminal 1", and the other end 1b of the auxiliary contact signal terminal 1" may or may not be bent 90 degrees relative to the body of the auxiliary contact signal terminal 1", as required.

[0064] As shown in FIGS. 6 to 12, in the illustrated embodiment, the coil skeleton 3 includes a cylindrical body 30, an upper flange 31, and a lower flange 32. The cylindrical body 30 has an upper end and a lower end that are opposite in the axial direction. The upper flange 31 is formed at the upper end of the cylindrical body 30. The lower flange 32 is formed at the lower end of the cylindrical body 30. The cylindrical body 30 is used for winding the coil 4, and the upper flange 31 and the lower flange 32 are used to abut against the upper end and lower end of the coil 4, respectively.

[0065] As shown in Figures 6 to 12, in the illustrated embodiment, the terminal module 10 is fixed to the upper flange 31 of the coil skeleton 3, and the magnetic tube 2 is fixed to the lower end of the cylindrical body 30 of the coil skeleton 3.

[0066] 6 to 12, a coil assembly is also disclosed in another exemplary embodiment of the present invention. The coil assembly includes the above-mentioned coil skeleton assembly and a coil 4 wound around the coil skeleton 3. The multiple signal terminals 1 include a pair of coil signal terminals 1', and both ends 4a of the coil 4 are electrically connected to one ends 1a of the pair of coil signal terminals 1', respectively.

[0067] As shown in FIGS. 6 to 12, a contactor is also disclosed in another exemplary embodiment of the present invention. The contactor includes a housing (not shown), a pair of auxiliary contacts (not shown), and the above-mentioned coil assembly disposed in the housing. The multiple signal terminals 1 of the coil assembly include a pair of auxiliary contact signal terminals 1'', and the pair of auxiliary contacts are electrically connected to one end 1a of the pair of auxiliary contact signal terminals 1'', respectively.

[0068] As shown in Figures 6 to 12, in another exemplary embodiment of the present invention, a method for manufacturing a coil skeleton is also disclosed. The method for manufacturing the coil skeleton includes: S21: Providing a terminal module 10 including a plurality of signal terminals 1 and a holder 11 for holding the plurality of signal terminals 1 together; S22: By using an embedded injection molding technique, the coil skeleton 3 is directly formed on the terminal module 10 and the magnetic tube 2, so that the coil skeleton 3, the terminal module 10 and the magnetic tube 2 are integrated into one piece; Includes:

[0069] As shown in Figures 6 to 12, in another exemplary embodiment of the present invention, a method for manufacturing a coil skeleton is also disclosed. The method for manufacturing the coil skeleton includes: S31: providing a plurality of signal terminals 1; S32: directly forming the carrier 11 on the plurality of signal terminals 1 by an injection molding technique to obtain a terminal module 10 including the plurality of signal terminals 1 and the carrier 11; S33: By using an embedded injection molding technique, the coil skeleton 3 is directly formed on the terminal module 10 and the magnetic tube 2, so that the coil skeleton 3, the terminal module 10, and the magnetic tube 2 are integrated into one part; Includes:

[0070] It should be understood by those skilled in the art that the above embodiments are illustrative and not restrictive. For example, those skilled in the art can make many modifications to the above embodiments without any contradiction in structure or principle, and can freely combine various features described in different embodiments with each other.

[0071] While several exemplary embodiments have been shown and described, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined in the following claims and their equivalents.

[0072] As used herein, elements described in the singular and preceded by the word "a" or "an" should be understood as not excluding a plural of said elements or steps, unless such exclusion is expressly stated. Furthermore, references to "one embodiment" of the invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Furthermore, unless expressly stated otherwise, embodiments "comprising" or "having" an element or elements having a particular characteristic may include additional such elements that do not have that characteristic.

Claims

1. A coil skeleton assembly comprising: a coil skeleton (3) used for winding a coil (4) of a contactor onto said coil skeleton (3); a magnetic tube (2) fixed to the coil skeleton (3); A plurality of signal terminals (1) fixed to the coil skeleton (3); Equipped with a coil skeleton assembly, wherein the coil skeleton (3) is directly molded onto the magnetic tube (2) and the plurality of signal terminals (1) by embedding injection molding, and thus the coil skeleton (3), the magnetic tube (2), and the plurality of signal terminals (1) are formed into an integral part.

2. The plurality of signal terminals (1) are a pair of coil signal terminals (1') for electrically connecting to both ends (4a) of the coil (4) of the contactor, respectively; and / or A pair of auxiliary contact signal terminals (1") used to electrically connect to a pair of auxiliary contacts of the contactor, respectively. The coil skeleton assembly of claim 1 , comprising:

3. The plurality of signal terminals (1) are a pair of coil signal terminals (1'), one end (1a) of each of the pair of coil signal terminals (1') being exposed from the outer surface of the coil skeleton (3) for electrical connection to both end (4a) of the coil (4) of the contactor, respectively; a pair of auxiliary contact signal terminals (1 ″), one ends (1 a) of which are exposed from the outer surface of the coil skeleton (3) so as to be electrically connected to a pair of auxiliary contacts of the contactor, respectively; The coil skeleton assembly of claim 1 , comprising:

4. 4. The coil skeleton assembly according to claim 3, wherein the other ends (1b) of the pair of coil signal terminals (1') and the other ends (1b) of the pair of auxiliary contact signal terminals (1") are arranged in a row so as to be inserted into a signal connector and to electrically contact a plurality of mating signal terminals of the signal connector.

5. 5. The coil skeleton assembly according to claim 4, wherein the coil skeleton (3) has a fitting portion (33) formed with a slot (303) for inserting the signal connector, and the other ends (1 b) of the pair of coil signal terminals (1 ') and the other ends (1 b) of the pair of auxiliary contact signal terminals (1 '') extend into the slot (303) of the fitting portion (33).

6. The coil signal terminal (1') has a flat body located between both ends of the coil signal terminal (1'), the body of the coil signal terminal (1') being perpendicular to the axial direction of the coil skeleton (3) and being wrapped in the coil skeleton (3); 5. The coil skeleton assembly of claim 4, wherein, after the end (4a) of the coil (4) is wound around and connected to one end (1a) of the coil signal terminal (1'), the one end (1a) of the coil signal terminal (1') is bent 90 degrees relative to the main body of the coil signal terminal (1'), and the other end (1b) of the coil signal terminal (1') is either bent 90 degrees relative to the main body of the coil signal terminal (1') or is not bent relative to the main body.

7. The auxiliary contact signal terminal (1 inch) has a flat body located between both ends of the auxiliary contact signal terminal (1 inch), the body of the auxiliary contact signal terminal (1 inch) being perpendicular to the axial direction of the coil skeleton (3) and being wrapped in the coil skeleton (3); 5. The coil skeleton assembly according to claim 4, wherein one end (1a) of the auxiliary contact signal terminal (1'') is bent 90 degrees relative to the main body of the auxiliary contact signal terminal (1''), and the other end (1b) of the auxiliary contact signal terminal (1'') is either bent 90 degrees relative to the main body of the auxiliary contact signal terminal (1'') or is not bent relative to the main body.

8. The coil skeleton (3) is a cylindrical body (30) having upper and lower ends on opposite sides of the cylindrical body (30) in an axial direction; an upper flange (31) formed at the upper end of the cylindrical body (30); a lower flange (32) formed at the lower end of the cylindrical body (30); Including, 2. The coil skeleton assembly according to claim 1, wherein the cylindrical body (30) is used for winding the coil (4), and the upper flange (31) and the lower flange (32) are used for abutting the upper end and the lower end of the coil (4), respectively.

9. 9. The coil skeleton assembly according to claim 8, wherein the plurality of signal terminals (1) are fixed to the upper flange (31) of the coil skeleton (3), and the magnetic tube (2) is fixed to the lower end of the cylindrical body (30) of the coil skeleton (3).

10. A coil skeleton assembly comprising: a coil skeleton (3) used for winding a coil (4) of a contactor onto said coil skeleton (3); a magnetic tube (2) fixed to the coil skeleton (3); Terminal module (10) and Equipped with The terminal module (10) comprises: A plurality of signal terminals (1); a holder (11) for holding the plurality of signal terminals (1) together; Including, A coil skeleton assembly, wherein the coil skeleton (3) is directly molded onto the magnetic tube (2) and the terminal module (10) by embedding injection molding, and thus the coil skeleton (3), the magnetic tube (2), and the terminal module (10) are formed into an integral part.

11. 11. The coil skeleton assembly according to claim 10, wherein the retaining body (11) is directly molded onto the plurality of signal terminals (1) by embedding injection molding, so that the retaining body (11) and the plurality of signal terminals (1) are formed into an integral part.

12. 11. The coil skeleton assembly according to claim 10, wherein a plurality of positioning pillars (11a) are formed on the holding body (11), the positioning pillars (11a) being distributed at intervals on the holding body (11) to realize positioning between the holding body (11) and the coil skeleton (3).

13. The plurality of signal terminals (1) are a pair of coil signal terminals (1') for electrically connecting to both ends (4a) of the coil (4) of the contactor, respectively; and / or A pair of auxiliary contact signal terminals (1") used to electrically connect to a pair of auxiliary contacts of the contactor The coil skeleton assembly of claim 10, comprising:

14. The plurality of signal terminals (1) are a pair of coil signal terminals (1'), one end (1a) of each of the pair of coil signal terminals (1') being exposed from the outer surface of the coil skeleton (3) for electrical connection to both end (4a) of the coil (4) of the contactor, respectively; a pair of auxiliary contact signal terminals (1 ″), one ends (1 a) of which are exposed from the outer surface of the coil skeleton (3) so as to be electrically connected to a pair of auxiliary contacts of the contactor, respectively; The coil skeleton assembly of claim 10, comprising:

15. 15. The coil skeleton assembly according to claim 14, wherein the other ends (1b) of the pair of coil signal terminals (1') and the other ends (1b) of the pair of auxiliary contact signal terminals (1") are arranged in a row to be inserted into a signal connector and to electrically contact a plurality of mating signal terminals of the signal connector.

16. 16. The coil skeleton assembly according to claim 15, wherein the coil skeleton (3) has a fitting portion (33) formed with a slot (303) for inserting the signal connector, and the other ends (1 b) of the pair of coil signal terminals (1 ') and the other ends (1 b) of the pair of auxiliary contact signal terminals (1 '') extend into the slot (303) of the fitting portion (33).

17. The coil signal terminal (1') has a flat body located between both ends of the coil signal terminal (1'), the body of the coil signal terminal (1') being perpendicular to the axial direction of the coil skeleton (3) and being wrapped in the coil skeleton (3); 16. The coil skeleton assembly of claim 15, wherein, after the end (4a) of the coil (4) is wound around and connected to one end (1a) of the coil signal terminal (1'), the one end (1a) of the coil signal terminal (1') is bent 90 degrees relative to the main body of the coil signal terminal (1'), and the other end (1b) of the coil signal terminal (1') is either bent 90 degrees relative to the main body of the coil signal terminal (1') or is not bent relative to the main body.

18. The auxiliary contact signal terminal (1 inch) has a flat body located between both ends of the auxiliary contact signal terminal (1 inch), the body of the auxiliary contact signal terminal (1 inch) being perpendicular to the axial direction of the coil skeleton (3) and being wrapped in the coil skeleton (3); 16. The coil skeleton assembly according to claim 15, wherein one end (1a) of the auxiliary contact signal terminal (1'') is bent 90 degrees relative to the main body of the auxiliary contact signal terminal (1''), and the other end (1b) of the auxiliary contact signal terminal (1'') is either bent 90 degrees relative to the main body of the auxiliary contact signal terminal (1'') or is not bent relative to the main body.

19. The coil skeleton (3) is a cylindrical body (30) having upper and lower ends on opposite sides of the cylindrical body (30) in an axial direction; an upper flange (31) formed at the upper end of the cylindrical body (30); a lower flange (32) formed at the lower end of the cylindrical body (30); Including, 11. The coil skeleton assembly according to claim 10, wherein the cylindrical body (30) is used to wind the coil (4), and the upper flange (31) and the lower flange (32) are used to abut the upper end and the lower end of the coil (4), respectively.

20. 20. The coil skeleton assembly according to claim 19, wherein the terminal module (10) is fixed to the upper flange (31) of the coil skeleton (3), and the magnetic tube (2) is fixed to the lower end of the cylindrical body (30) of the coil skeleton (3).

21. 1. A coil assembly comprising: The coil skeleton assembly according to any one of claims 1 to 20; a coil (4) wound around the coil skeleton (3); Equipped with The plurality of signal terminals (1) include a pair of coil signal terminals (1'), and both ends (4a) of the coil (4) are electrically connected to one end (1a) of each of the pair of coil signal terminals (1').

22. A contactor, Housing and a pair of auxiliary contacts provided on the housing; The coil assembly of claim 21 mounted on the housing; Equipped with The plurality of signal terminals (1) include a pair of auxiliary contact signal terminals (1"), and the pair of auxiliary contacts are electrically connected to one end (1a) of the pair of auxiliary contact signal terminals (1"), respectively.

23. 1. A method for producing a coil scaffold, comprising: providing a plurality of signal terminals (1) and a magnetic tube (2); forming a coil skeleton (3) directly onto the plurality of signal terminals (1) and the magnetic tube (2) by an embedded injection molding technique, so that the coil skeleton (3), the plurality of signal terminals (1), and the magnetic tube (2) become an integral part; A method comprising:

24. 1. A method for producing a coil scaffold, comprising: providing a terminal module (10) including a plurality of signal terminals (1) and a retainer (11) for retaining the plurality of signal terminals (1) together; forming the coil skeleton (3) directly onto the terminal module (10) and the magnetic tube (2) by embedded injection molding technology, so that the coil skeleton (3), the terminal module (10) and the magnetic tube (2) become an integral part; A method comprising:

25. 1. A method for producing a coil scaffold, comprising: providing a plurality of signal terminals (1); directly molding a carrier (11) onto the plurality of signal terminals (1) by an embedding injection molding process to obtain a terminal module (10) including the plurality of signal terminals (1) and the carrier (11); forming the coil skeleton (3) directly onto the terminal module (10) and the magnetic tube (2) by embedded injection molding technology, so that the coil skeleton (3), the terminal module (10) and the magnetic tube (2) become an integral part; A method comprising:

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