Reel and electromagnetic coil

Abstract

The utility model discloses a winding frame and an electromagnetic coil, a frame body of the winding frame is provided with a winding part used for bearing a winding, an inserting part used for bearing a conducting inserting piece and a connecting part used for connecting the winding part and the inserting part, and the winding part, the connecting part and the inserting part are sequentially arranged in the axial direction of the winding. The connecting part of the winding frame is provided with at least two wire passing grooves, the wire passing grooves extend from the end, close to the winding part, of the connecting part to the inserting part, one of the at least two wire passing grooves is used for containing a first connector lug of the winding, and the other one of the at least two wire passing grooves is used for containing a second connector lug of the winding. According to the winding frame, the short circuit risk of the winding connector lug when the electromagnetic coil is powered on can be reduced, and the safety of the electromagnetic coil can be improved.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic coil technology, and in particular to a winding frame and an electromagnetic coil. Background Technology

[0002] The winding frame of an electromagnetic coil, serving as the carrier of the winding, typically has a routing surface. The winding terminals pass through this routing surface and connect to the conductive tabs (terminals used to connect the electromagnetic coil to the outside world) on the electromagnetic coil. Currently, the two winding terminals generally pass loosely through the routing surface of the winding frame, often resulting in excessively close local distances between them. Furthermore, during the electromagnetic coil manufacturing process, friction damage can cause discontinuities in the enamel film at the winding terminals, potentially leading to exposed copper in certain areas. When these exposed copper areas are close together, energizing the electromagnetic coil poses a significant short-circuit risk. Therefore, improving the electromagnetic coil to enhance safety has become a pressing issue for those skilled in the art. Utility Model Content

[0003] In view of this, the main objective of this utility model is to provide a winding frame to reduce the risk of short circuits at the winding terminals when the electromagnetic coil is energized, thereby improving the safety of the electromagnetic coil. Another objective of this utility model is to provide an electromagnetic coil including the aforementioned winding frame.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A winding frame includes a frame body, the frame body being provided with a winding section for carrying a winding, a plug-in section for carrying a conductive insert, and a connecting section connecting the winding section and the plug-in section. The winding section, the connecting section, and the plug-in section are arranged sequentially along the axial direction of the winding. The connecting section is provided with at least two wire-passing grooves, the wire-passing grooves extending from one end of the connecting section near the winding section toward the plug-in section. One of the at least two wire-passing grooves is used to accommodate a first terminal of the winding, and the other is used to accommodate a second terminal of the winding.

[0006] Optionally, in the above-mentioned winding frame, the width of the wire guide groove is greater than the outer diameter of the wire guide end used when the wire is wound on the winding section to form the winding.

[0007] Optionally, in the above-mentioned winding frame, the wire guide groove is provided as two, respectively located on opposite sides of the connecting part. The wire guide groove extends along the side of the connecting part. The wire guide groove has a first wall and a second wall opposite to each other. The first wall is closer to the side than the second wall, and the first wall is higher than the second wall to form a height difference in the groove depth direction.

[0008] Optionally, in the above-mentioned winding frame, the first wall is provided with a notch, which is used to allow the end of the wire guide used when winding the wire in the winding section to form the winding to pass through.

[0009] Optionally, in the above-mentioned winding frame, the notch is located on the first wall near the insertion part.

[0010] Optionally, in the above-mentioned winding frame, the connecting part has a connecting surface located between the two wire guide slots and lower than the second wall in the slot depth direction, and the top surface width of the second wall is not greater than the slot width of the wire guide slot.

[0011] Optionally, in the above-mentioned winding frame, the connecting part has a connecting surface located between the two wire guide slots and flush with the top surface of the second wall.

[0012] Optionally, in the above-mentioned winding frame, a rib is provided in the middle of the connecting surface, which is parallel to the second wall. The rib is higher than the top surface of the second wall, and the width of the rib is not greater than the width of the wire passage groove.

[0013] Optionally, in the above-mentioned winding frame, the rib is lower than the top surface of the first wall.

[0014] An electromagnetic coil includes a winding frame and a winding, wherein the winding frame is a winding frame as disclosed in any of the foregoing claims.

[0015] As can be seen from the above technical solution, the winding frame provided by this utility model has at least two wire-passing grooves in the connecting part. One of the at least two wire-passing grooves is used to accommodate the first terminal of the winding, and the other is used to accommodate the second terminal of the winding. Since the two wire-passing grooves respectively constrain the first terminal and the second terminal, it avoids the first terminal and the second terminal from passing loosely through the connecting part. This is conducive to a more regular wire routing in the connecting part, preventing the two terminals from being too close to each other locally, thereby reducing the risk of short circuit at the winding terminals when the electromagnetic coil is energized, and improving the safety of the electromagnetic coil. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the winding frame provided in this embodiment of the utility model;

[0018] Figure 2 yes Figure 1 The diagram shown is a schematic of the structure after the conductive insert is assembled.

[0019] Figure 3 yes Figure 2 A schematic diagram of the structure after the winding is wound.

[0020] Figure 4 yes Figure 3 Front view of the structure shown (connection terminals omitted);

[0021] Figure 5 yes Figure 3 A schematic diagram of the structure after the outer casing is installed;

[0022] Figure 6 yes Figure 5 A schematic diagram of the structure after the magnetic guide frame is installed;

[0023] Figure 7 This is a schematic diagram of another structural form of the winding frame according to an embodiment of the present utility model;

[0024] Figure 8 This is a schematic diagram of another structural form of the winding frame according to an embodiment of the present utility model.

[0025] The diagram is marked as follows:

[0026] 100. Winding frame; 110. Winding section; 120. Connecting section; 130. Plug-in section;

[0027] 121. Cable tray; 122. First wall; 123. Notch; 124. Second wall; 125. Connecting surface; 126. Protruding rib;

[0028] 200, Conductor insert; 300, Winding; 310, First terminal; 320, Second terminal;

[0029] 400, outer casing; 500, magnetic guide frame. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] See Figures 1-4This utility model provides a winding frame 100, including a frame body. The frame body is provided with a winding part 110 for supporting a winding 300, a plug-in part 130 for supporting a conductive insert 200, and a connecting part 120 connecting the winding part 110 and the plug-in part 130. The winding part 110, the connecting part 120 and the plug-in part 130 are arranged sequentially along the axial direction of the winding 300, that is, the connecting part 120 extends from the winding part 110 in a direction parallel to the axis of the winding 300 to the plug-in part 130. The winding section 110, the connecting section 120, and the plug-in section 130 are the three components of the winding frame 100. During the fabrication of the electromagnetic coil, wires are wound in the winding section 110 to form a winding 300. Conductive inserts 200 are installed in the plug-in section 130. The two terminals of the winding 300 pass from the connecting section 120 of the winding frame 100 and are respectively connected to the corresponding conductive inserts 200. The conductive inserts 200 are terminals used when the electromagnetic coil is connected to other electrical equipment. The connecting section 120 is provided with at least two wire guide slots 121, extending from one end of the connecting section 120 near the winding section 110 towards the plug-in section 130. One of the at least two wire guide slots 121 is used to accommodate the first terminal 310 of the winding 300, and the other is used to accommodate the second terminal 320 of the winding 300. That is, the two terminals of the winding 300 are routed through different wire guide slots 121. It should be noted that "terminal" refers to the wire between the coil portion of the winding 300 and the conductive insert 200. Because the two wire guide slots 121 constrain the first terminal 310 and the second terminal 320 respectively, they prevent the first terminal 310 and the second terminal 320 from loosely passing through the connecting portion 120. This facilitates a more orderly routing of the wires in the connecting portion 120, prevents the two terminals from being too close together locally, thereby reducing the risk of short circuits at the terminals of the winding 300 when the electromagnetic coil is energized, and improving the safety of the electromagnetic coil.

[0032] In some embodiments, the width of the wire guide groove 121 may be set to be greater than the outer diameter of the wire guide pin (not shown) used when winding the wire in the winding portion 110 to form the winding 300. It should be understood that the wire guide pin is a guiding tool used when winding the winding 300; it is mounted on an industrial robot, and its end has a hole structure for threading, called the threading end. The wire passes through the threading end of the wire guide pin and completes the designed wiring path as the threading end moves. The width of the wire guide groove 121 is greater than the outer diameter of the threading end, allowing the threading end to enter the wire guide groove 121. This allows the threading end to move within the wire guide groove 121, guiding the wire and enabling better accommodation of the wire within the wire guide groove 121 when it is routed in the connection portion 120. When designing the width of the wire guide groove 121, it is typically set to be greater than 1.5 mm, or 1.5 times the diameter of the wire, to ensure the wire smoothly enters the wire guide groove 121 and provides space for the wire guide pin to enter. In other embodiments, the width of the wire guide groove 121 can also be set to be no greater than the outer diameter of the wire guide pin's insertion end. In this case, the wire guide pin's insertion end moves along the wire guide groove 121 above it, and other auxiliary tools, such as a wire pressing roller, can be used to press the wire into the wire guide groove 121. When designing the depth of the wire guide groove 121, it is typically set to be greater than the diameter of the wire, so that the terminal of the winding 300 is less likely to accidentally come out of the wire guide groove 121.

[0033] In some embodiments, two wire guide grooves 121 may be provided, located on opposite sides of the connecting portion 120, with the wire guide grooves 121 extending along the side edges of the connecting portion 120. Providing two wire guide grooves 121 on opposite sides of the connecting portion 120 fully utilizes the dimensions of the connecting portion 120 itself to keep the first terminal 310 and the second terminal 320 as far apart as possible, which is beneficial for improving electrical safety. The wire guide groove 121 has opposing first walls 122 and second walls 124. It is easy to understand that the first walls 122 and second walls 124 are solid portions forming the wall surface of the wire guide groove 121; that is, the first walls 122 and second walls 124 each have a top surface and a side surface, and their opposing side surfaces form the wall surface of the wire guide groove 121. The distance between the two walls is the width dimension of the wire guide groove 121.

[0034] In some embodiments, the first wall 122 and the second wall 124 of the cable tray 121 can be configured such that the first wall 122 is closer to the side of the connecting portion 120 than the second wall 124, and the first wall 122 is higher than the second wall 124 to form a height difference in the depth direction of the tray. That is, the first wall 122 is positioned further outward on the connecting portion 120 than the second wall 124, and in the depth direction of the cable tray 121, the distance from the top surface of the first wall 122 to the bottom of the cable tray 121 is greater than the distance from the top surface of the second wall 124 to the bottom of the cable tray 121. See also Figure 4 Since the first wall 122 is higher than the second wall 124, a height difference is formed in the groove depth direction. Therefore, the first wall 122 and the second wall 124 together present a stepped structure with the outside higher and the inside lower on the connecting part 120. This stepped structure allows more space to be left in the area above the connecting part 120 near the surface of the connecting part 120, which allows the wire guide needle to move. This ensures that the wire passes through while facilitating more flexible planning of the wire guide needle's movement path during the design of the automated production program. In other words, the stepped structure design can reduce the design difficulty of the wire guide needle's movement control program, which allows the staff to complete the program code required for automated production more efficiently.

[0035] In some embodiments, the first wall 122 may have a notch 123 for the passage of the lead wire guide end used when winding a wire in the winding section 110 to form a winding 300. See also Figure 2 and Figure 3 After the first connector 310 emerges from the conductive insert 200, it enters the wire groove 121 from the outside of the connecting part 120 through the notch 123 on the first wall 122. On the other side of the connecting part 120 opposite to the first connector 310, the second connector 320 emerges from the winding 300 and runs along the wire groove 121 on that side. Then, it leaves the connecting part 120 through the notch 123 on the first wall 122 and runs from the outside of the connecting part 120 to connect with the conductive insert 200 on that side. The notch 123 provides a channel for the wire guide pin to enter and exit the area above the connecting part 120 near the surface of the connecting part 120, simplifying the movement trajectory of the wire guide pin and facilitating automated production of electromagnetic coils. Figure 2 As shown, in some embodiments, the notch 123 may be located on the first wall 122 near the insertion portion 130. Of course, in other embodiments, the notch 123 may also be located at other positions on the first wall 122, for example, the notch 123 may be located at the middle of the first wall 122.

[0036] The connecting part 120 of the winding frame 100 can have various structural forms to choose from, see [reference]. Figure 2 and Figure 4In some embodiments, the connecting portion 120 may be configured such that it has a connecting surface 125 located between two wire-passing grooves 121 and lower than the second wall 124 in the groove depth direction, wherein the top surface width of the second wall 124 is not greater than the groove width of the wire-passing groove 121. In other embodiments, such as... Figure 7 As shown, the connecting portion 120 can be configured such that it has a connecting surface 125 located between the two wire passage slots 121 and flush with the top surface of the second wall 124. In this case, the top surface of the second wall 124 becomes part of the connecting surface 125. Alternatively, it can be understood that the connecting surface 125 extends directly from the opening of one wire passage slot 121 to the opening of the other wire passage slot 121, and no part of the connecting surface 125 has a protruding structure. See also Figure 8 In other embodiments, the connecting portion 120 may be configured such that a protruding rib 126, parallel to the second wall 124, is provided at the center of the connecting surface 125. The protruding rib 126 is higher than the top surface of the second wall 124 (this top surface is the portion of the connecting surface 125 near the wire passage 121 when the top surface of the second wall 124 is flush with the connecting surface 125), and the width of the protruding rib 126 is not greater than the width of the wire passage 121. By providing the protruding rib 126 at the center of the connecting surface 125, the protruding rib 126 can further prevent the two terminals of the winding 300 from accidentally overlapping at the connecting portion 120. To minimize the size occupied by the protruding rib 126, the protruding rib 126 may be set lower than the top surface of the first wall 122, that is, in the direction of the depth of the wire passage 121, the top surface of the protruding rib 126 is closer to the connecting surface 125 than the top surface of the first wall 122.

[0037] This utility model also provides an electromagnetic coil, which includes a winding 300 and a winding frame 100 disclosed in the above embodiments. Since the winding frame 100 disclosed in the above embodiments has the above-mentioned technical effects, the electromagnetic coil having the winding frame 100 also has the above-mentioned technical effects, which will not be repeated here.

[0038] In some embodiments, the electromagnetic coil may include a conductive insert 200, which is connected to the insertion portion 130 of the winding frame 100, i.e., the insertion portion 130 of the winding frame 100 is provided with a slot for mounting the conductive insert 200. It should be understood that the conductive insert 200 is a terminal for connecting the electromagnetic coil to other electrical equipment. Of course, in other embodiments, the terminal of the electromagnetic coil for connecting to other electrical equipment may be configured in other forms.

[0039] In some embodiments, the portion of the outer casing 400 of the electromagnetic coil corresponding to the winding portion 110 of the winding frame 100 may be provided with a magnetic guide frame 500. See also Figure 3 , Figure 5 and Figure 6After the internal components of the electromagnetic coil housing 400 are assembled, the housing 400 is used to enclose the assembled internal components. Then, a magnetic guide frame 500 is mounted on the outer surface of the housing 400. The magnetic guide frame 500 can improve the magnetic field strength when the electromagnetic coil is energized, thereby obtaining a stronger magnetic attraction force.

[0040] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reel, characterized in that, The device includes a frame, which has a winding section for carrying a winding, a plug-in section for carrying a conductive insert, and a connecting section for connecting the winding section and the plug-in section. The winding section, the connecting section, and the plug-in section are arranged sequentially along the axial direction of the winding. The connecting section has at least two wire-passing grooves that extend from one end of the connecting section near the winding section toward the plug-in section. One of the at least two wire-passing grooves is used to accommodate a first terminal of the winding, and the other is used to accommodate a second terminal of the winding.

2. The winding frame according to claim 1, characterized in that, The width of the wire guide groove is greater than the outer diameter of the wire guide pin used when winding the wire in the winding section to form the winding.

3. The reel of claim 1, wherein, Two wire guide grooves are provided, located on opposite sides of the connecting part respectively. The wire guide grooves extend along the side of the connecting part. Each wire guide groove has a first wall and a second wall opposite to each other. The first wall is closer to the side than the second wall, and the first wall is higher than the second wall to form a height difference in the groove depth direction.

4. The reel of claim 3, wherein, The first wall has a notch for the passage of the lead wire guide used when winding the wire in the winding section to form the winding.

5. The reel of claim 4, wherein, The notch is located on the first wall near the insertion part.

6. The reel of claim 4, wherein, The connecting part has a connecting surface located between the two wire passage slots and lower than the second wall in the groove depth direction, wherein the top surface width of the second wall is not greater than the groove width of the wire passage slot.

7. The reel of claim 4, wherein, The connecting part has a connecting surface located between the two wire grooves and flush with the top surface of the second wall.

8. The reel according to claim 6 or 7, characterized in that The connecting surface is provided with a rib in the middle that is parallel to the second wall. The rib is higher than the top surface of the second wall and the width of the rib is not greater than the width of the through groove.

9. The reel of claim 8, wherein, The rib is lower than the top surface of the first wall.

10. An electromagnetic coil comprising a bobbin and a winding, characterized in that, The winding frame is the winding frame as described in any one of claims 1 to 9.

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