Coil connector, coil winding device and method

Abstract

A coil connector, a coil winding device and a method, the coil connector comprising a connector body, the connector body comprising a connector base and a self-locking crimping cover, the surface of the self-locking crimping cover being provided with a central cable notch, the interior of the self-locking crimping cover being provided with two rows of empty slots, the interior of the connector base being provided with two rows of base piercing connectors matching the empty slots, the coil winding device comprising a winding cable, a coil core and the above-mentioned coil connector; the winding cable is wound on the coil core through the coil connector, the coil winding method comprising: winding the winding cable on the coil core through the above-mentioned coil connector to form a coil, the coil winding being convenient and quick, the turns of the coil being parallel and uniform after winding, the shape being stable and reliable, and the problems in the background technology can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of electricity, in particular to a magnetic core coil, and more particularly to a coil connector, a coil winding device and a method. Background Art

[0002] The closed loop formed by magnetic flux in space is called a magnetic circuit. In practical applications, a specific magnetic circuit structure is required, such as annular magnetic circuit, rectangular magnetic circuit, cylindrical magnetic circuit, uniform parallel magnetic circuit, trapezoidal magnetic circuit, etc. The specific magnetic circuit structure is generally realized through a combination of soft magnetic materials. The magnetic source can be a permanent magnet or a current-carrying coil. It is difficult for a permanent magnet to obtain or change the required magnetic induction intensity value, so the most commonly used method in industry is to use a current-carrying coil.

[0003] The magnetic circuit composed of current-carrying coils and soft magnetic material cores requires the coils to be wound evenly, parallelly and closely on the cores and fixed. For standard devices with a large market share, they are generally wound on the coil skeleton using special equipment, and then the skeleton is put on the core to achieve this. However, in the field of industrial strong electromagnetics, the number of coil turns is not large, but most of them are customized for engineering, the core size is large, and the magnetic circuit structure is complex. This field is generally wound manually on site, which is difficult to thread and fix, time-consuming and labor-intensive, and the process is complicated, making it difficult to ensure uniform and dense winding and construction quality. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a coil connector, a coil winding device and a method for solving the problems in the prior art that the winding operation of the magnetic core coil is complicated, time-consuming and labor-intensive, and it is difficult to ensure uniformity.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides a coil connector, including a connector body, the connector body including a connector base and a self-locking crimping cover, the surface of the self-locking crimping cover is provided with a central cable slot, the interior of the self-locking crimping cover is provided with two rows of empty slots, and the interior of the connector base is provided with two rows of base piercing connectors that match the empty slots.

[0006] In one embodiment of the present invention, the base piercing connector includes two end piercing needles independently located at both ends and several pairs of piercing needles, each pair of the piercing pairs includes two wound piercing needles, and the two wound piercing needles are staggeredly connected by a metal bridge. The wound cable passes through any one of the end piercing needles and enters the inside of an adjacent pair of piercing needles. The wound cable enters an adjacent pair of piercing needles after being wound out from a pair of piercing needles. A piercing needle head groove is provided at the top of each of the wound piercing needle pairs. The wound cable enters the piercing needle head groove at the top of the wound piercing needle through the central cable groove. After the self-locking crimping cover is crimped, the piercing needle head groove is electrically contacted with the wound cable.

[0007] In one embodiment of the present invention, the bottom ends of the end puncture needle and the wound puncture needle are both connected with a puncture joint hole, and the top end of the puncture joint hole is connected with an elastic neck through a needle hole elastic groove.

[0008] In one embodiment of the present invention, a connector cover is provided on the top of the connector body, a plurality of connector pinhole plugs are connected to the connector cover, a pinhole plug core is connected to the end of the connector pinhole plug, the pinhole plug core is inserted into the puncture connector hole through elastic necking, and the external circuit is electrically connected to the inside of the connector body through the coil end tap pin inserted into the puncture connector hole.

[0009] In one embodiment of the present invention, locking spring buckles are installed at both ends of the self-locking crimping cover, and locking spring slots are provided at both ends of the connector base. The locking spring buckles and the locking spring slots cooperate to lock the wound coil through the self-locking crimping cover.

[0010] In one embodiment of the present invention, the end puncture needle and the wound puncture needle are made of metal conductor material.

[0011] The invention discloses a coil winding device, comprising a winding cable, a coil core and the above-mentioned coil connector; the winding cable is wound on the coil core through the coil connector.

[0012] In one embodiment of the present invention, the external circuit is electrically connected to the inside of the coil connector via the coil end tap pins.

[0013] The present invention also provides a coil winding method, comprising: winding a winding cable on a coil core through the coil connector to form a coil.

[0014] As described above, the coil connector, coil winding device and method described in the present invention have the following beneficial effects:

[0015] The winding device and coil winding method of the present invention are used to wind the magnetic core coil. Not only is the winding process completed in one time, which is convenient and quick, but the turns of the coil are also parallel and uniform. The coil has a stable shape with the help of a flat cable and a connector, and can be easily connected or separated from an external circuit with the help of an elastic necking pinhole. The winding efficiency of the magnetic core coil is greatly improved, and the error caused by manual direct winding is reduced, which can effectively solve the problems in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It shows a schematic diagram of the overall structure of the coil winding device of the present invention.

[0017] Figure 2 Shown is a schematic diagram of a coil connector in the present invention.

[0018] Figure 3 Shown is a schematic diagram of the puncture connector hole structure in the present invention.

[0019] Figure 4 Shown is a schematic diagram of the base piercing joint structure in the present invention.

[0020] Figure 5 Shown is a schematic diagram of the connector cover structure of the present invention;

[0021] Figure 6 Shown is an overall schematic diagram of Embodiment 1 of the present invention;

[0022] Figure 7 It is a schematic diagram of the whole of Embodiment 2 of the present invention.

[0023] In the figure: 1-coil connector; 2-wound cable; 3-coil core; 4-connector cover; 5-connector pinhole plug; 6-coil end tap pin; 7-connector base; 8-self-locking crimping cover; 9-central cable notch; 10-lock spring buckle; 11-base piercing connector; 12-lock spring notch; 13-end piercing needle; 14-wound piercing needle; 15-metal bridge; 16-piercing needle slot; 17-piercing connector hole; 18-pinhole elastic slot; 19-elastic necking; 20-pinhole plug core; 21-upper end pin; 22-first independent piercing needle end; 23-coil input end; 24- The first circle; 25-piercing head pair; 26-the second circle; 27-the fortieth circle; 28-the second independent piercing needle end; 29-the end pin; 30-the coil output end; 31-the cable at the converging point; 32-the solenoid coil structure; 33-the left independent piercing needle end; 34-the coil input end; 35-the first circle; 36-the half piercing head pair; 37-the second circle; 38-the eightieth circle; 39-the right independent piercing needle end; 40-the outer row of piercing heads with pinholes; 41-the coil output end; 42-the adjacent cable; 43-the solenoid coil structure; 44-the empty slot; 45-the piercing needle pair; 46-the middle row of piercing heads without pinholes. DETAILED DESCRIPTION

[0024] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0025] It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic manner, and thus the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0026] like Figures 1 to 5 As shown, in one embodiment, the coil connector of the present invention includes a connector body 1, the connector body 1 includes a connector base 7 and a self-locking crimping cover 8, the surface of the self-locking crimping cover 8 is provided with a central cable slot 9, the interior of the self-locking crimping cover 8 is provided with two rows of empty slots 44, and the interior of the connector base 7 is provided with two rows of base piercing connectors 11 that match the empty slots 44.

[0027] In one embodiment, the base piercing connector 11 includes two end piercing needles 13 independently located at both ends and several pairs of piercing needle pairs 45, each pair of the piercing pairs 45 includes two wound piercing needles 14, and the two wound piercing needles 14 are staggeredly connected by a metal bridge 15. The wound cable 2 passes through any one of the end piercing needles 13 and enters the adjacent pair of piercing needles 45. The wound cable 2 enters the adjacent pair of piercing needles 45 after being wound out from the pair of piercing needles 45. A piercing needle head groove 16 is provided at the top of each of the wound piercing needles 14. The wound cable 2 enters the piercing needle head groove 16 at the top of the wound piercing needle 14 through the central cable slot 9. After the self-locking crimping cover 8 is crimped, the piercing needle head groove 16 is electrically in contact with the wound cable 2.

[0028] In one embodiment, the bottom ends of the end puncture needle 13 and the wound puncture needle 14 are both connected with a puncture joint hole 17 , and the top end of the puncture joint hole 17 is connected with an elastic neck 19 through a needle hole elastic groove 18 .

[0029] In one embodiment, a connector cover 4 is provided at the top of the connector body 1, and a plurality of connector pinhole plugs 5 are connected to the connector cover 4. A pinhole plug core 20 is connected to the end of the connector pinhole plug 5, and the pinhole plug core 20 is inserted into the puncture connector hole 17 through an elastic neck 19.

[0030] In one embodiment, locking spring buckles 10 are also installed at both ends of the self-locking crimping cover 8, and locking spring slots 12 are provided at both ends of the connector base 7. The locking spring buckles 10 and the locking spring slots 12 are engaged with each other to lock the wound coil through the self-locking crimping cover 8.

[0031] In one embodiment, the end puncture needle 13 and the wound puncture needle 14 are made of metal conductor material to perform a conductive function.

[0032] In one embodiment, the coil winding device of the present invention comprises a winding cable 2, a coil core 3 and the above-mentioned coil connector; the winding cable 2 is wound on the coil core 3 through the coil connector.

[0033] In one embodiment, the external circuit is electrically connected to the inside of the coil connector via the coil end tap pin 6 .

[0034] In this solution, after the wound cable 2 is wound on the coil core 3, it is stably fixed on the coil core 3 through the connector body 1, thereby realizing rapid on-site winding of the wound cable 2. At the same time, the connector body 1 plays a good stabilizing role. The two ends of the wound cable 2 are respectively inserted into the connector body 1 using the coil end tap pins 6. While fixing the ends of the wound cable 2, it is convenient to connect the two ends of the wound cable 2 to the outside electrical connection through the connector body 1.

[0035] When the connector body 1 is winding the cable, the self-locking crimping cover 8 is used to crimp the wound cable 2 onto the connector body 1 and the coil core 3, thereby ensuring that the shape and structure of the wound coil are stable.

[0036] During the specific winding process, the wound cable 2 passes through the central cable slot 9 on the surface of the self-locking crimping cover 8 and passes through the connector body 1, and is alternately connected with the base piercing connector 11 in turn to complete the winding process.

[0037] When the self-locking crimping cover 8 is crimped onto the connector body 1, the two rows of empty grooves 44 inside the self-locking crimping cover 8 match the base piercing connector 11, so they can be stably combined together after crimping, thereby further fixing the wound cable 2.

[0038] The specific winding process is as follows: the output wire of the wound cable 2 is crimped onto the end piercing pin 13 at one end, and after winding one circle on the coil core 3, it converges into several pairs of piercing pins 45 inside the connector body 1 through the central cable slot 9, and enters from the input end of the piercing pins 45 at the starting end, and outputs from the other output end of the piercing pins 45 at the starting end, and after winding one circle on the coil core 3, it enters the input end of the second pair of piercing pins 45 through the central cable slot 9 again, and the entire cable winding process is completed by analogy. After the winding is completed, the cable is evenly arranged. Compared with traditional manual winding, the winding efficiency can be greatly improved and the manual error can be reduced.

[0039] Since both ends of the wound cable 2 are connected to the external circuit through the coil end tap pins 6, the coil end tap pins 6 can be conveniently self-locked and fixed under the self-locking effect of the elastic neck 19. At the same time, under the action of the elastic pinhole groove 18, the coil end tap pins 6 can be conveniently pulled out to achieve elastic clamping, which facilitates the pulling process of the coil end tap pins 6.

[0040] In this solution, the coil end tap pin 6 is fixed by elastic clamping, and any existing technology that can implement this solution is sufficient and will not be described in detail here.

[0041] A connector cover 4 is provided at the top of the connector body 1, and a plurality of connector pinhole plugs 5 are connected to the connector cover 4. A pinhole plug core 20 is connected to the end of the connector pinhole plug 5. The pinhole plug core 20 is inserted into the puncture connector hole 17 through an elastic neck 19. For the part where the cable does not need to be wound, the puncture connector hole 17 is in an exposed state. At this time, the plurality of connector pinhole plugs 5 on the connector cover 4 are used for protection. The puncture connector hole 17 without cable entering is isolated and protected by inserting the pinhole plug core 20 at the end of the connector pinhole plug 5. The pinhole plug core 20 is elastically inserted into the puncture needle hole 17 through the elastic neck 19 to facilitate plugging and unplugging.

[0042] For the puncture needle hole 17 where the coil end tap pin 6 needs to be inserted, the corresponding connector pinhole plug 5 is pulled out, and the coil end tap pin 6 is inserted. The coil end tap pin 6 is electrically contacted with the inside of the puncture needle hole 17, so that the external circuit can be electrically connected to the coil on the coil connector through the coil end tap pin 6. The distance between two adjacent coil end tap pins 6 is determined according to the number of coil turns that need to be electrically connected. If necessary, a third coil end tap pin 6 can also be connected, which is not particularly limited here.

[0043] Locking spring buckles 10 are also installed at both ends of the self-locking crimping cover 8, and locking spring slots 12 are provided at both ends of the connector base 7. The locking spring buckle 10 and the locking spring slot 12 are engaged and clamped together to lock the wound coil through the self-locking crimping cover 8. The self-locking crimping cover 8 is fixed on the connector base 7 through the engaging and clamping action of the locking spring buckle 10 and the locking spring slot 12, thereby realizing the firm self-locking of the punctured connection and the stability of the wound cable structure.

[0044] In one embodiment, the coil winding method of the present invention includes: winding the winding cable 2 on the coil core 3 through the above-mentioned coil connector to form a coil.

[0045] The following will be combined Figure 6 and Figure 7 A coil winding method of the present invention is explained in detail.

[0046] Embodiment 1

[0047] In one embodiment, if Figure 6 As shown, the coil core 3 in this embodiment is an annular ferrite core used on a carbon steel pipe of a water circulation system, with an outer diameter of the pipe DN270 mm, a core cross section of 30 mm*10 mm, 20 turns of the coil, a rated coil current of 2 A, and a 50-200 microsecond pulse peak current of 10 A.

[0048] Select 2 rows of 40 cores with a core spacing of 2.54mm. The connector base piercing head distribution and internal connections are as follows: Figure 6 The ends of the upper and lower rows on both sides of the connector base are respectively provided with first independent piercing needle ends 22 and first independent piercing needle ends 28, and the other piercing head pairs 25 are staggered up and down.

[0049] Use 20-core 2.54mm line spacing IDC flat ribbon cable, cutting length is about 110mm.

[0050] The flat ribbon cable is wound around the surface of the coil core 3 for one circle and then gathered through the central cable slot 9 to penetrate into the connector body 1, and then separated through the piercing joint 11 to pass out of the connector 1. After the crimping cover 8 and the connector base 7 are crimped, the flat cable is alternately connected in sequence through the upper and lower rows of piercing joints 11, forming a parallel and evenly wound spiral tube coil structure in one step and locking it.

[0051] The output line of the external circuit is crimped to the upper end pin 21, and inserted into the first independent piercing needle end 22 on the left to form the coil input end 23. The first circle 24 formed by the first cable and the piercing head pair 25 enter the input of the second circle 26. The output of the second circle 26 enters the input of the third circle. By analogy, the output of the fortieth circle 27 enters the second independent piercing needle end 28 on the right. The end pin 29 of the external circuit is inserted into the second independent piercing needle end 28 on the right to form the coil output end 30. Since the flat ribbon cable is parallel and closely converged at the central cable slot 9 of the self-locking crimping cover 8 to enter the connector body 1, the currents of the cables 31 at the convergence point are parallel and reversed, which is equivalent to the seamless connection of adjacent coils of the solenoid, forming a parallel and uniform solenoid coil structure 32, such as Figure 6 As shown in the figure at the bottom, the coil winding process is completed quickly and conveniently. After winding, the turns of the coil are parallel and uniform, and the shape is stable and reliable.

[0052] Embodiment 2

[0053] In one embodiment, if Figure 7 As shown, this embodiment describes a coil with a coil current lower than 2A and a large number of coil turns.

[0054] Applicable to pipe outer diameter DN270 mm, core section 30 mm*10 mm, coil 80 turns.

[0055] Select 4 rows of 82 cores with a core spacing of 2.54 mm. The connector body 1, the connector base 7, the piercing head distribution and the internal connection are as follows: Figure 7 As shown. On both sides of the connector base 7, there are left independent puncture needle ends 33 and right independent puncture needle ends 39 with elastic pinholes, and there are alternating semi-puncture head pairs 36 in the upper and lower rows. The puncture heads on the outside of the semi-puncture head pairs 36 have pinholes, and the inside ones only have puncture heads without pinholes. The horizontal spacing between the two is 1.27mm, and the vertical spacing is 5.08mm. The two rows inside the connector base 7 only have puncture heads without pinholes, and the outermost two rows of puncture heads have pinholes. The horizontal spacing between the same puncture heads is maintained at 2.54mm, and the vertical spacing between the puncture heads with pinholes is 7.62mm.

[0056] Use 80-core 1.27mm line spacing IDC flat ribbon cable, cutting length is about 110mm.

[0057] The flat ribbon cable is wound around the surface of the magnetic core once, and then aligned to the left of the central cable slot 9 of the crimping cover and converged into the connector body 1, and then separated and passed out of the connector 1 through the piercing joint 11. After the crimping cover 8 and the connector base 7 are crimped, the flat cable is alternately connected in sequence through the upper and lower 4 rows of piercing joints 11, and a parallel and evenly wound 80-turn spiral tube coil structure is formed in one step and locked.

[0058] The output line of the external circuit is crimped onto the end pin, and inserted into the independent piercing needle end 33 on the left to form the coil input end 34. It enters the input of the second circle 37 through the first circle 35 and the half-piercing head pair 36 formed by the first cable line. The output of the second circle 37 enters the input of the third circle, and so on. The output of the eightieth circle 38 enters the middle row of non-pinhole piercing heads 46 of the rightmost half-piercing head pair, and is connected to the end pin of the external circuit through the outer row of pinhole piercing heads 40 to form the coil output end 41. Since the flat ribbon cable has a cable notch 9 in the center of the self-locking crimping cover 8 and converges into the connector body 1 in parallel, the currents of adjacent cable lines 42 at the convergence are parallel and opposite, which is equivalent to the seamless connection of adjacent coils of the solenoid, forming a parallel and uniform solenoid coil structure 43, such as Figure 7 in the bottom figure.

[0059] The coil is easy and quick to wind, the turns of the coil are parallel and uniform, and the shape is stable and reliable.

[0060] In summary, the coil winding device and coil winding method of the present invention facilitate rapid winding of the magnetic core coil, and the coil structure shape after winding is stable, which effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0061] The winding device and coil winding method of the present invention are used to wind the magnetic core coil. Not only is the winding process completed in one time, which is convenient and quick, but the turns of the coil are also parallel and uniform. The coil has a stable shape with the help of a flat cable and a connector, and can be easily connected or separated from an external circuit with the help of an elastic necking pinhole. The winding efficiency of the magnetic core coil is greatly improved, and the error caused by manual direct winding is reduced, which can effectively solve the problems in the background technology.

[0062] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

Claims

1. A coil connector, characterized in that: The invention comprises a connector body (1), wherein the connector body (1) comprises a connector base (7) and a self-locking crimping cover (8), wherein the surface of the self-locking crimping cover (8) is provided with a central cable notch (9), wherein the interior of the self-locking crimping cover (8) is provided with two rows of empty slots (44), and the interior of the connector base (7) is provided with two rows of base piercing connectors (11) which match the empty slots (44); the base piercing connector (11) comprises two independent end piercing needles (13) at both ends and a plurality of pairs of piercing needles (45), wherein each pair of the piercing needles (45) comprises two winding piercing needles (14), wherein the two winding piercing needles (14) are staggeredly connected via a metal bridge (15), and the winding cable (2) passes through any one of the end piercing needles (13) and enters an adjacent pair of The piercing needle pair (45) is inside the wound cable (2), and after being wound around a pair of the piercing needles (45), the wound cable (2) enters an adjacent pair of the piercing needles (45). Each of the wound piercing needles (14) is provided with a piercing needle head groove (16) at the top of the wound piercing needle (14). The wound cable (2) enters the piercing needle head groove (16) at the top of the wound piercing needle (14) through the central cable groove (9). After the self-locking crimping cover (8) is crimped, the piercing needle head groove (16) is in electrical contact with the wound cable (2). Locking spring buckles (10) are also installed at both ends of the self-locking crimping cover (8). Locking spring notches (12) are provided at both ends of the connector base (7). The locking spring buckle (10) and the locking spring notch (12) are engaged and clamped with each other to lock the wound coil through the self-locking crimping cover (8).

2. A coil connector according to claim 1, characterized in that: The bottom ends of the end puncture needle (13) and the wound puncture needle (14) are both connected to a puncture joint hole (17), and the top end of the puncture joint hole (17) is connected to an elastic neck (19) via a needle hole elastic groove (18).

3. A coil connector according to claim 2, characterized in that: A connector cover (4) is provided at the top of the connector body (1), a plurality of connector pinhole plugs (5) are connected to the connector cover (4), a pinhole plug core (20) is connected to the end of the connector pinhole plug (5), the pinhole plug core (20) is inserted into the piercing connector hole (17) through an elastic necking (19), and an external circuit is electrically connected to the inside of the connector body (1) through a coil end tap pin (6) inserted into the piercing connector hole (17).

4. A coil connector according to claim 1, characterized in that: The end puncture needle (13) and the wound puncture needle (14) are made of metal conductor material.

5. A coil winding device, characterized in that: It comprises a wound cable (2), a coil core (3) and a coil connector as claimed in any one of claims 1 to 4; the wound cable (2) is wound on the coil core (3) through the coil connector.

6. A coil winding device according to claim 5, characterized in that: The external circuit is electrically connected to the inside of the coil connector via the coil end tap pin (6).

7. A coil winding method, characterized in that: include: A wound cable (2) is wound on a coil core (3) through a coil connector as claimed in any one of claims 1 to 4 to form a coil.

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