Coil framework and electromagnetic coil
By designing the lead groove and through groove structure of the coil bobbin, the problems of interlayer contact and loose wire during enameled wire winding were solved, ensuring the safety and voltage resistance of the coil.
Patent Information
- Application Number
- CN202420604454.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-03-27
AI Technical Summary
In the hydraulic industry, when enameled wire is wound on the coil frame, the lack of a guiding structure for the incoming wire can lead to poor contact and compression between the layers of enameled wire, and loose outgoing wire can cause it to be exposed during injection molding, resulting in safety issues.
Design a coil frame including a winding post and an end cap. The end cap is circumferentially provided with a lead wire groove and a through wire groove. The enameled wire enters through the lead wire groove and enters the through wire groove to be wound on the winding post. The outgoing wire extends into the lead wire groove through the through wire groove. The lead wire groove and the through wire groove are provided to guide and fix the enameled wire to avoid contact and loosening.
It effectively avoids problems such as interlayer contact and loose wire in the enameled wire, improves the safety and withstand voltage performance of the coil, and prevents the wire from being exposed after plastic sealing.
Smart Images
Figure CN222440323U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a coil frame and an electromagnetic coil. Background Art
[0002] In the hydraulic industry, when the enameled wire is wound on the coil frame, the inlet and outlet of the enameled wire are usually not guided. As a result, during the winding process, the interlayer enameled wire usually contacts and squeezes the incoming wire, resulting in poor interlayer enameled wire, which in turn causes the coil to burn when powered on. Although there is no problem between layers and turns of the enameled wire lead-out wire, the tension is reduced at the end of winding. If a lead-out structure is not made, the outermost turn of the winding will be loose, resulting in the exposure of the enameled wire during injection molding, resulting in poor pressure resistance and safety issues. Utility Model Content
[0003] The utility model aims to provide a coil skeleton and an electromagnetic coil, which solve the technical problems in the prior art that the incoming wire of the enameled wire contacts and squeezes the interlayer enameled wire, resulting in defective interlayer enameled wire; and the outgoing wire of the enameled wire is loose, resulting in the exposure of the enameled wire during injection molding, resulting in poor pressure resistance and causing safety problems.
[0004] To achieve this purpose, the utility model adopts the following technical solutions:
[0005] The utility model provides a coil frame, comprising a winding post and end covers arranged at both ends of the winding post, wherein a lead wire groove is arranged on the circumference of one of the end covers, and the lead wire groove extends from the circumference of the end cover toward the winding post to form a lead wire notch;
[0006] The end cover provided with the lead wire groove is provided with a wire passing groove on the end surface facing the winding pole, the wire passing groove corresponds to the lead wire groove opening and is connected thereto, the wire passing groove extends from the periphery of the end cover to the side wall of the winding pole, the incoming wire of the enameled wire extends from the lead wire groove opening into the wire passing groove and is wound around the winding pole; the outgoing wire of the enameled wire extends into the lead wire groove through the groove opening of the wire passing groove.
[0007] The coil skeleton is provided with a lead groove on the circumference of the end cover, and the lead groove extends from the periphery of the end cover to the direction close to the winding pole to form a lead groove opening. The end face of the end cover facing the winding pole is provided with a wire groove corresponding to and connected to the lead groove opening. The wire groove extends from the periphery of the end cover to the side wall of the winding pole. The incoming wire of the enameled wire extends into the wire groove from the lead groove opening and is wound on the winding pole, which effectively avoids the incoming wire of the enameled wire from contacting other interlayer enameled wires on the winding pole and prevents poor outlet of the interlayer enameled wire; the outlet wire of the enameled wire extends into the lead groove through the groove opening of the wire groove, and the outlet wire is hung in the lead groove, which can avoid the enameled wire from loosening and exposing the wire after plastic sealing, resulting in poor voltage resistance.
[0008] As a preferred solution of the coil skeleton, the opening size of the lead wire slot gradually decreases from the periphery of the end cover toward the winding column.
[0009] The above arrangement can prevent the incoming wire and the outgoing wire from contacting each other, thus avoiding defects.
[0010] As a preferred solution of the coil frame, the two opposite side walls of the lead wire slot are respectively an inlet side wall and an outlet side wall, and the inlet wire of the enameled wire extends into the wire slot along the inlet side wall and is wound around the winding pole.
[0011] The incoming wire of the enameled wire extends into the wire groove along the incoming wire side wall to be wound on the winding pole, and the incoming wire side wall plays a guiding role for the incoming wire of the enameled wire.
[0012] As a preferred embodiment of the coil frame, the wire inlet side wall is an arc-shaped side wall extending from the periphery of the end cover to the winding column;
[0013] The wire outlet side wall is a section extending from the periphery of the end cover toward the winding post and tangent to the side wall of the winding post.
[0014] The inlet side wall is an arc-shaped side wall, so as to guide the inlet of the enameled wire from the circumference of the end cover to the winding pole, and the arc-shaped side wall prevents the enameled wire from being scratched; the outlet side wall is tangent to the side wall of the winding pole, so as to form a lead-in groove extending to the winding pole with the inlet side wall, so as to guide the inlet of the enameled wire to the position of the winding pole.
[0015] As a preferred solution of the above-mentioned coil frame, the bottom of the main structure of the lead groove is connected to the arc-shaped side wall to form an arc structure, and the distance between the arc structure and the winding column gradually decreases from the main structure of the lead groove toward the lead groove opening.
[0016] The above structure allows the lead wire of the enameled wire to be naturally bent and wound around the winding pole, thereby reducing the bending degree of the enameled wire inlet wire.
[0017] As a preferred solution of the coil skeleton, the wire outlet side wall is located at the wire lead slot and is connected to the main structure of the wire lead slot in an arc transition.
[0018] The above arrangement enables the outlet wire of the enameled wire to extend from the lead wire slot into the main structure of the lead wire slot, thereby preventing the enameled wire from being damaged.
[0019] As a preferred solution of the coil skeleton, the side wall of the wire slot facing the incoming wire side wall is flush with the outgoing wire side wall.
[0020] The above arrangement facilitates the introduction of the incoming enameled wire into the wire groove and onto the winding pole.
[0021] As a preferred solution of the coil frame, the coil frame further comprises an incoming wire pin for fixing the incoming wire end of the enameled wire and an outgoing wire pin for fixing the outgoing wire end of the enameled wire, and the incoming wire pin and the outgoing wire pin extend into the lead-in groove respectively.
[0022] The arrangement of the incoming wire pin and the outgoing wire pin facilitates fixing the incoming wire end and the outgoing wire end of the enameled wire to prevent the enameled wire from loosening.
[0023] As a preferred solution of the coil skeleton, the wire groove is arranged parallel to or perpendicular to the incoming wire pin and the outgoing wire pin.
[0024] The above arrangement enables the incoming wire of the enameled wire to be wound on the winding pole and avoids damage to the enameled wire due to excessive bending angle.
[0025] The utility model also provides an electromagnetic coil, comprising the above-mentioned coil frame, and further comprising:
[0026] The coil, the enameled wire of the coil is wound on the winding post of the coil frame, and the inlet wire of the enameled wire extends from the lead wire slot into the wire slot and is wound on the winding post; the outlet wire of the enameled wire extends from the slot of the wire slot into the lead wire slot;
[0027] A plastic-coated shell is coated on the outside of the coil frame and the coil.
[0028] The electromagnetic coil can avoid defects caused by the incoming enameled wire contacting other interlayer enameled wires through the coil frame; and avoid the enameled wire being exposed after plastic coating due to loose wire when winding, resulting in poor voltage resistance.
[0029] Beneficial effects of the utility model:
[0030] The utility model provides a coil frame, which is provided with a lead wire groove in the circumferential direction of the end cover, the lead wire groove extends from the periphery of the end cover toward the direction close to the winding pole to form a lead wire groove opening, the end face of the end cover facing the winding pole is provided with a wire groove corresponding to and connected with the lead wire groove opening, the wire groove extends from the periphery of the end cover to the side wall of the winding pole, the incoming wire of the enameled wire extends into the wire groove from the lead wire groove opening and is wound on the winding pole, effectively avoiding the incoming wire of the enameled wire from contacting other interlayer enameled wires on the winding pole, preventing the interlayer enameled wire from being defective; the outgoing wire of the enameled wire extends into the lead wire groove through the groove opening of the wire groove, and the outgoing wire is hung in the lead wire groove, which can avoid the enameled wire from being loose and exposing the wire after plastic sealing, resulting in poor voltage resistance.
[0031] The electromagnetic coil proposed by the utility model can avoid the defect caused by the contact between the incoming wire of the enameled wire and the enameled wire between other layers through the coil frame; and avoid the wire exposure after plastic coating due to loose wire when the enameled wire is collected, resulting in poor voltage resistance. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 It is a schematic diagram of the structure of the coil skeleton provided in the first embodiment of the utility model;
[0033] Figure 2 This is a front view of the coil skeleton provided in the first embodiment of the utility model;
[0034] Figure 3 yes Figure 2 Sectional view along AA direction;
[0035] Figure 4 yes Figure 2 The cross-sectional view along the BB direction;
[0036] Figure 5 This is a schematic diagram of the structure in which the incoming wire of the enameled wire provided in the first embodiment of the utility model is wound on the coil frame;
[0037] Figure 6 This is a schematic diagram of the structure in which the outlet wire of the enameled wire provided in the first embodiment of the utility model is led out from the coil skeleton;
[0038] Figure 7 This is a front view of the coil skeleton provided in the second embodiment of the present utility model;
[0039] Figure 8 yes Figure 7 Cross-sectional view along CC direction;
[0040] Fig. 9 yes Figure 7 The cross-sectional view along the DD direction;
[0041] Fig.10 This is a schematic diagram of the structure in which the incoming wire of the enameled wire provided in the second embodiment of the utility model is wound on the coil frame;
[0042] Fig.11 This is a schematic diagram of the structure in which the outlet wire of the enameled wire provided in the second embodiment of the utility model is led out from the coil skeleton;
[0043] Fig.12 This is a front view of the coil skeleton provided in the third embodiment of the present utility model;
[0044] Fig.13 yes Fig.12 A cross-sectional view along the EE direction;
[0045] Fig.14 yes Fig.12 A cross-sectional view along the FF direction;
[0046] Fig.15 This is a schematic diagram of the structure in which the incoming wire of the enameled wire provided in the third embodiment of the utility model is wound on the coil frame;
[0047] Fig.16 This is a schematic diagram of the structure in which the outlet wire of the enameled wire provided in the third embodiment of the utility model is led out from the coil skeleton;
[0048] Fig.17 This is a front view of the coil skeleton provided by the fourth embodiment of the utility model;
[0049] Fig.18 yes Fig.17 Sectional view along GG direction;
[0050] Fig.19 yes Fig.17 A cross-sectional view along the HH direction;
[0051] Fig. 20 This is a schematic diagram of the structure in which the incoming wire of the enameled wire provided in the fourth embodiment of the utility model is wound on the coil frame;
[0052] Fig.21 It is a structural schematic diagram of the enameled wire provided in the fourth embodiment of the utility model, in which the outlet wire is led out from the coil skeleton.
[0053] In the figure:
[0054] 1. Winding column;
[0055] 2. End cover; 21. Lead wire groove; 211. Lead wire notch; 212. Main structure; 2111. Inlet wire side wall; 2112. Outlet wire side wall; 22. Wire groove;
[0056] 3. Inlet pin;
[0057] 4. Outlet pins;
[0058] 5. Block the lines;
[0059] 100, enameled wire; 101, incoming wire; 102, outgoing wire. DETAILED DESCRIPTION
[0060] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0061] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0062] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0063] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0064] Embodiment 1:
[0065] In the hydraulic industry, when the enameled wire is wound on the coil frame, the inlet and outlet of the enameled wire are usually not guided. As a result, during the winding process, the interlayer enameled wire usually contacts and squeezes the incoming wire, resulting in poor interlayer enameled wire, which in turn causes the coil to burn when powered on. Although there is no problem between layers and turns of the enameled wire lead-out wire, the tension is reduced at the end of winding. If a lead-out structure is not made, the outermost turn of the winding will be loose, resulting in the exposure of the enameled wire during injection molding, resulting in poor pressure resistance and safety issues.
[0066] In order to solve the above problems, Figure 1-Figure 6As shown, the present embodiment provides a coil skeleton, including a winding pole 1 and end covers 2 arranged at both ends of the winding pole 1, wherein a lead groove 21 is arranged circumferentially on one of the end covers 2, and the lead groove 21 extends from the periphery of the end cover 2 toward the winding pole 1 to form a lead groove opening 211; the end cover 2 provided with the lead groove 21 is provided with a wire groove 22 on the end surface facing the winding pole 1, and the wire groove 22 corresponds to and is connected with the lead groove 211, and the wire groove 22 extends from the periphery of the end cover 2 to the side wall of the winding pole 1, and the inlet wire 101 of the enameled wire 100 extends from the lead groove 211 into the wire groove 22 and is wound around the winding pole 1; the outlet wire 102 of the enameled wire 100 extends into the lead groove 21 through the groove of the wire groove 22. In this embodiment, the end cap 2 at the upper end of the winding post 1 is the upper end cap, and the end cap 2 at the lower end of the winding post 1 is the lower end cap, and the lead wire groove 21 and the wire passing groove 22 are both arranged on the upper end cap. In other embodiments, the lead wire groove 21 and the wire passing groove 22 can also be arranged on the lower end cap.
[0067] The incoming wire 101 of the enameled wire 100 extends from the lead wire slot 211 into the wire slot 22 and is wound on the winding pole 1, which effectively prevents the incoming wire 101 of the enameled wire 100 from contacting other interlayer enameled wires 100 on the winding pole 1, thereby preventing defects in the interlayer enameled wire 100; the outgoing wire 102 of the enameled wire 100 extends into the lead wire slot 21 through the slot of the wire slot 22, and the outgoing wire 102 is hung in the lead wire slot 21, which can prevent the enameled wire 100 from loosening and exposing the wire after plastic sealing, resulting in poor voltage resistance, thereby improving safety performance.
[0068] Alternatively, if Figure 4 As shown, the opening size of the lead wire slot 211 gradually decreases from the periphery of the end cover 2 to the direction close to the winding column 1. The above arrangement can prevent the incoming wire 101 and the outgoing wire 102 of the enameled wire 100 from contacting each other, thereby avoiding interference or defects.
[0069] Furthermore, the two opposite side walls of the lead wire slot 211 are respectively the incoming wire side wall 2111 and the outgoing wire side wall 2112. The incoming wire 101 of the enameled wire 100 extends into the wire slot 22 along the incoming wire side wall 2111 and is wound around the winding pole 1. The setting of the incoming wire side wall 2111 is used to guide the incoming wire 101 of the enameled wire 100 so that the incoming wire 101 is wound around the winding pole 1.
[0070] In this embodiment, the inlet side wall 2111 is an arc-shaped side wall extending from the periphery of the end cover 2 to the winding post 1; the outlet side wall 2112 is a section extending from the periphery of the end cover 2 to the winding post 1 and tangent to the side wall of the winding post 1. The inlet side wall 2111 is an arc-shaped side wall, so that the inlet wire 101 of the enameled wire 100 is guided from the circumference of the end cover 2 to the winding post 1, and the arc-shaped side wall prevents the enameled wire 100 from being scratched; the outlet side wall 2112 is tangent to the side wall of the winding post 1, so that it and the inlet side wall 2111 form a lead-in notch 211 extending to the winding post 1, so that the inlet wire 101 of the enameled wire 100 is guided to the position of the winding post 1.
[0071] Optionally, the outlet side wall 2112 is connected to the main structure 212 of the lead groove 21 by an arc transition at the lead groove 21. The above arrangement enables the outlet wire 102 of the enameled wire 100 to extend from the lead groove 211 into the main structure 212 of the lead groove 21, thereby preventing damage to the enameled wire 100.
[0072] Optionally, the side wall of the wire groove 22 facing the incoming wire side wall 2111 is flush with the outgoing wire side wall 2112. The above arrangement facilitates the introduction of the incoming wire 101 of the enameled wire 100 into the wire groove 22 and onto the winding pole 1.
[0073] Optionally, the coil skeleton further includes an incoming wire pin 3 for fixing the incoming wire end of the enameled wire 100 and an outgoing wire pin 4 for fixing the outgoing wire end of the enameled wire 100, and the incoming wire pin 3 and the outgoing wire pin 4 are respectively extended into the lead-in groove 21. The provision of the incoming wire pin 3 and the outgoing wire pin 4 facilitates fixing the incoming wire end and the outgoing wire end of the enameled wire 100 to prevent the enameled wire 100 from loosening.
[0074] like Figure 1 As shown, a set of wire blocking structures are provided on the side away from each other of the incoming wire pin 3 and the outgoing wire pin 4, each set of wire blocking structures includes two blocking strips 5, and the two blocking strips 5 of each set of wire blocking structures are respectively provided on the upper and lower sides of the upper end surface located at the lead groove 21, and the two blocking strips 5 of each set of wire blocking structures are provided correspondingly up and down. The setting of the wire blocking structure can prevent the enameled wire 100 from sliding out of the lead groove 21.
[0075] It should be noted that the two retaining wires 5 located on the same side of the wire groove 22 can be an integral structure or a split structure, which is not specifically limited here.
[0076] Optionally, the wire groove 22 is arranged parallel to or perpendicular to the incoming wire pin 3 and the outgoing wire pin 4. The above arrangement enables the incoming wire 101 of the enameled wire 100 to be wound on the winding pole 1, and avoids the enameled wire 100 being damaged due to excessive bending angle.
[0077] In this embodiment, the wire slot 22 of the coil skeleton is parallel to the incoming wire pin 3 and is located on a side of the winding column 1 close to the incoming wire pin 3 .
[0078] like Figure 5 As shown, the incoming wire 101 of the enameled wire 100 is fixed by the incoming wire pin 3 (in this embodiment, Figure 5 It is not shown that the inlet end of the enameled wire 100 is fixed to the inlet pin 3) along the main structure 212 of the wire groove 22 through the lead-in slot 211 into the wire groove 22 to be wound on the winding pole 1. It should be noted that Figure 5 It is only a schematic diagram of the winding of the incoming wire 101 of the enameled wire 100. The incoming wire 101 is in a relaxed state, and it does not show that the incoming wire 101 enters the lead-in slot 211. In fact, the incoming wire 101 enters the wire groove 22 along the incoming wire side wall 2111 of the lead-in slot 211.
[0079] like Figure 6 As shown, the outlet wire 102 of the enameled wire 100 enters the main structure 212 of the lead groove 21 through the notch of the wire groove 22, and extends along the main structure 212 to the outlet wire pin 4 for fixation.
[0080] Embodiment 2:
[0081] like Figure 7-Figure 11 As shown, this embodiment provides a coil frame. The difference between the coil frame of this embodiment and the coil frame of the first embodiment is that the wire slot 22 of the coil frame of the first embodiment is parallel to the incoming wire pin 3 and is located on the side of the winding column 1 close to the incoming wire pin 3. In this embodiment, as Figure 8 As shown, the wire groove 22 is perpendicular to the incoming wire pin 3 , and the wire groove 22 is located on a side of the winding pole 1 away from the incoming wire pin 3 .
[0082] In addition, in this embodiment, Fig. 9 As shown, the bottom of the main structure 212 of the lead groove 21 is connected to the arc-shaped side wall to form an arc structure, and the distance between the arc structure and the winding column 1 gradually decreases from the main structure 212 of the lead groove 21 to the lead groove opening 211. The above structure allows the lead wire of the enameled wire 100 to be naturally bent and wound on the winding column 1, reducing the bending degree of the enameled wire 100 inlet wire 101.
[0083] Embodiment three:
[0084] like Figure 12-16 As shown, this embodiment provides a coil frame. The difference between the coil frame of this embodiment and the coil frame of the first embodiment is that the wire slot 22 of the coil frame of the first embodiment is parallel to the incoming wire pin 3 and is located on the side of the winding column 1 close to the incoming wire pin 3. In this embodiment, as Fig.13As shown, the wire groove 22 is parallel to the incoming wire pin 3 , and the wire groove 22 is located on a side of the winding pole 1 away from the incoming wire pin 3 .
[0085] In addition, in this embodiment, Fig.14 As shown, the bottom of the main structure 212 of the lead groove 21 is connected to the arc-shaped side wall to form an arc structure, and the distance between the arc structure and the winding column 1 gradually decreases from the main structure 212 of the lead groove 21 to the lead groove opening 211. The above structure allows the lead wire of the enameled wire 100 to be naturally bent and wound on the winding column 1, reducing the bending degree of the enameled wire 100 inlet wire 101.
[0086] Embodiment 4:
[0087] like Figure 17-Figure 21 As shown, this embodiment provides a coil frame. The difference between the coil frame of this embodiment and the coil frame of the first embodiment is that the wire slot 22 of the coil frame of the first embodiment is parallel to the incoming wire pin 3 and is located on the side of the winding column 1 close to the incoming wire pin 3. In this embodiment, as Fig.18 As shown, the wire groove 22 is perpendicular to the incoming wire pin 3 , and the wire groove 22 is located on a side of the winding pole 1 close to the incoming wire pin 3 .
[0088] In addition, in this embodiment, Fig.19 As shown, the bottom of the main structure 212 of the lead groove 21 is connected to the arc-shaped side wall to form an arc structure, and the distance between the arc structure and the winding column 1 gradually decreases from the main structure 212 of the lead groove 21 to the lead groove opening 211. The above structure allows the lead wire of the enameled wire 100 to be naturally bent and wound on the winding column 1, reducing the bending degree of the enameled wire 100 inlet wire 101.
[0089] Embodiment five:
[0090] The present embodiment also provides an electromagnetic coil, comprising a coil frame in any of the above embodiments, the electromagnetic coil also comprising a coil and a plastic-coated shell, the enameled wire 100 of the coil is wound on the winding post 1 of the coil frame, and the incoming wire 101 of the enameled wire 100 extends from the lead wire slot 211 into the wire slot 22 and is wound on the winding post 1; the outgoing wire 102 of the enameled wire 100 extends into the lead wire slot 21 through the slot of the wire slot 22; the plastic-coated shell covers the outside of the coil frame and the coil.
[0091] The electromagnetic coil can avoid the defect caused by the contact between the incoming wire 101 of the enameled wire 100 and other interlayer enameled wires 100 through the coil frame; and avoid the wire exposure after plastic coating due to loose wire when the enameled wire 100 is wound, resulting in poor voltage resistance.
[0092] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. A coil frame, characterized in that: The invention comprises a winding post (1) and end caps (2) arranged at both ends of the winding post (1), wherein a lead wire groove (21) is arranged in the circumference of one of the end caps (2), the lead wire groove (21) extends from the circumference of the end cap (2) towards the winding post (1) to form a lead wire slot (211), and the opening size of the lead wire slot (211) gradually decreases from the circumference of the end cap (2) towards the winding post (1); The end cover (2) provided with the lead wire groove (21) is provided with a wire passing groove (22) on the end surface facing the winding pole (1); the wire passing groove (22) corresponds to and is connected to the lead wire groove opening (211); the wire passing groove (22) extends from the periphery of the end cover (2) to the side wall of the winding pole (1); the inlet wire (101) of the enameled wire (100) extends from the lead wire groove opening (211) into the wire passing groove (22) and is wound around the winding pole (1); the outlet wire (102) of the enameled wire (100) extends into the lead wire groove (21) through the groove opening of the wire passing groove (22).
2. The coil skeleton according to claim 1, characterized in that: The opposite side walls of the lead wire slot (211) are respectively an inlet wire side wall (2111) and an outlet wire side wall (2112); the inlet wire (101) of the enameled wire (100) extends into the wire slot (22) along the inlet wire side wall (2111) and is wound around the winding pole (1).
3. The coil frame according to claim 2, characterized in that: The wire inlet side wall (2111) is an arc-shaped side wall extending from the periphery of the end cover (2) toward the winding pole (1); The wire outlet side wall (2112) is a section extending from the periphery of the end cover (2) toward the winding pole (1) and tangent to the side wall of the winding pole (1).
4. The coil frame according to claim 3, characterized in that: The groove bottom of the main structure (212) of the lead groove (21) is connected to the arc-shaped side wall to form an arc structure, and the distance between the arc structure and the winding pole (1) gradually decreases from the main structure (212) of the lead groove (21) towards the lead groove opening (211).
5. The coil frame according to claim 3, characterized in that: The wire outlet side wall (2112) is located at the wire lead slot opening (211) and is connected to the main structure (212) of the wire lead slot (21) in an arc transition.
6. The coil skeleton according to claim 3, characterized in that: The side wall of the wire passage groove (22) facing the incoming wire side wall (2111) is flush with the outgoing wire side wall (2112).
7. The coil skeleton according to any one of claims 1 to 6, characterized in that: The coil frame further comprises an incoming wire pin (3) for fixing the incoming wire end of the enameled wire (100) and an outgoing wire pin (4) for fixing the outgoing wire end of the enameled wire (100), and the incoming wire pin (3) and the outgoing wire pin (4) respectively extend into the lead-in wire groove (21).
8. The coil frame according to claim 7, characterized in that: The wire passage groove (22) is arranged parallel to or perpendicular to the incoming wire pin (3) and the outgoing wire pin (4).
9. An electromagnetic coil, characterized in that The coil frame according to any one of claims 1 to 8, further comprising: A coil, wherein the enameled wire (100) of the coil is wound on a winding pole (1) of the coil frame, and an inlet wire (101) of the enameled wire (100) extends from the lead wire slot (211) into the wire slot (22) and is wound on the winding pole (1); an outlet wire (102) of the enameled wire (100) extends from the slot of the wire slot (22) into the lead wire slot (21); A plastic-coated shell is coated on the outside of the coil frame and the coil.