Coil crimping terminal

Abstract

The utility model belongs to the technical field of coils, and particularly relates to a coil crimping terminal which comprises a coil rack and a coil terminal arranged on the coil rack, and the coil terminal is used for being electrically connected with two wiring ends of a relay coil respectively. The coil rack comprises a winding post for winding a coil, an upper annular end cover and a lower annular end cover, the upper annular end cover and the lower annular end cover are arranged on the two sides of the winding post and used for limiting the wound coil, a plurality of wire passing grooves are formed in the winding post, and a wiring groove is formed in the outer surface of the lower annular end cover. The edge of the lower annular end cover is provided with a notch, the notch is communicated with the wiring groove, and the edge of the lower annular end cover is further provided with a plurality of telescopic limiting rods used for limiting wires in the wiring groove; according to the utility model, the coil wound on the winding post can be limited, so that the coil in the winding post is not easy to separate from the winding post.

Description

Technical Field

[0001] The utility model belongs to the technical field of coils, and in particular relates to a coil wire pressing terminal. Background Art

[0002] Coils are widely used in transformers, motor rotors, and electromagnetic induction components. They typically consist of a coil body, windings, and terminals. The coil body typically consists of a winding post and retaining rings at each end to hold the enameled wire. The enameled wire is wound around the post, with positive and negative leads extending from the post for connection to the terminals. However, coils can easily loosen when wound around the post, ultimately causing the enameled wire to break during relay operation or generating unusual noises due to the coil's back-and-forth movement. Utility Model Content

[0003] The purpose of the utility model is to provide a coil wire terminal, aiming to solve the technical problem in the prior art that "the coil is easy to loosen when it is wound on the winding pole, which eventually causes the enameled wire to break during the use of the relay, or abnormal noise occurs due to the back and forth movement of the coil."

[0004] To achieve the above-mentioned purpose, an embodiment of the present invention provides a coil wire terminal, including a coil frame and a coil terminal installed on the coil frame, the coil terminal is used to electrically connect to the two terminal ends of the relay coil respectively, the coil frame includes a winding post for winding the coil and an upper annular end cover and a lower annular end cover arranged on both sides of the winding post for limiting the wound coil, a plurality of wire grooves are provided on the winding post, a wiring groove is provided on the outer surface of the lower annular end cover, a notch is provided at the edge of the lower annular end cover, the notch is connected to the wiring groove, and a plurality of telescopic limiting rods are also provided at the edge of the lower annular end cover for limiting the wire in the wiring groove.

[0005] Optionally, the telescopic limiting rod includes a first limiting rod connected to the lower annular end cover and a second limiting rod slidably arranged in the first limiting rod.

[0006] Optionally, a clamping block is connected to a side of the second limiting rod away from the first limiting rod, and a clamping groove for engaging with the clamping block is formed on the lower annular end cover.

[0007] Optionally, the width of the clamping block is equal to the width of the clamping slot, and the clamping block is movably clamped in the clamping slot.

[0008] Optionally, a plurality of the wire passing grooves are arranged along the axial direction of the winding column; a transverse curve of the wire passing groove is a 1 / 2 arc line, and a diameter of the transverse curve is equal to the diameter of the coil.

[0009] Optionally, a terminal block is provided on the lower annular end cover, a slot is provided on the terminal block, and the coil terminal is plugged into the slot.

[0010] Optionally, at least one fixing hole is further provided on the upper annular end cover.

[0011] The above one or more technical solutions of the coil wire terminal provided by the embodiment of the utility model have at least one of the following technical effects:

[0012] An embodiment of the present invention provides a coil wire crimping terminal. When the coil is wound from the wire groove into the missing groove and passes through the wiring groove, the wiring groove plays a further guiding and limiting role in the winding of the coil, thereby helping to further improve the winding effect of the coil when it is wound in the wiring groove; and the edge position of the lower annular end cover is also provided with a plurality of telescopic limit rods for limiting the wire in the wiring groove. Through the setting of the telescopic limit rod, the telescopic limit rod can play a limiting role on the coil wound in the wiring groove, so that the coil located in the wiring groove is not easy to detach from the wiring groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0014] Figure 1 A schematic diagram of the overall structure of the coil wire terminal provided by an embodiment of the utility model;

[0015] Figure 2 Another schematic diagram of the overall structure of the coil wire crimping terminal provided by an embodiment of the present utility model;

[0016] Figure 3 for Figure 2 A partial enlarged view of 2 in the figure.

[0017] Among them, the reference numerals in the figures are:

[0018] 10. Coil frame; 11. Winding post; 110. Wire duct; 12. Upper annular end cap; 120. Fixing hole; 13. Lower annular end cap; 130. Wire duct; 131. Slot; 132. Telescopic limit rod; 132a. First limit rod; 132b. Second limit rod; 132b1. Snap-fit block; 133. Snap-fit slot; 134. Terminal block; 134a. Slot;

[0019] 20. Coil terminal. DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0023] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0024] In one embodiment of the present invention, Figure 1-Figure 3As shown, a coil wire terminal is provided, including a coil frame 10 and a coil terminal 20 installed on the coil frame 10, the coil terminal 20 is used to electrically connect to the two terminal ends of the relay coil respectively, the coil frame 10 includes a winding post 11 for winding the coil and an upper annular end cover 12 and a lower annular end cover 13 arranged on both sides of the winding post 11 for limiting the wound coil, the winding post 11 is provided with a plurality of wire grooves 110, the outer surface of the lower annular end cover 13 is provided with a wiring groove 130, the edge position of the lower annular end cover 13 is provided with a notch 131, the notch 131 is connected to the wiring groove 130, and the edge position of the lower annular end cover 13 is also provided with a plurality of telescopic limiting rods 132 for limiting the wire in the wiring groove 130.

[0025] An embodiment of the present invention provides a coil wire crimping terminal. When the coil is wound from the wire passing groove 110 to the missing groove 131 and passes through the wiring groove 130, the wiring groove 130 plays a further guiding and limiting role in the winding of the coil, thereby helping to further improve the winding effect of the coil when it is wound in the wiring groove 130; and the edge position of the lower annular end cover 13 is also provided with a plurality of telescopic limiting rods 132 for limiting the wire in the wiring groove 130. Through the setting of the telescopic limiting rod 132, the telescopic limiting rod 132 can play a limiting role on the coil wound in the wiring groove 130, so that the coil located in the wiring groove 130 is not easy to detach from the wiring groove 130.

[0026] It should be noted that the winding pole 11, the upper annular end cover 12 and the lower annular end cover 13 of the utility model are all made of high-strength plastic. Since the winding pole 11, the upper annular end cover 12 and the lower annular end cover 13 are all made of high-strength plastic, the winding pole 11, the upper annular end cover 12 and the lower annular end cover 13 have the characteristics of high strength, light weight and strong insulation.

[0027] In this embodiment, the telescopic limiting rod 132 includes a first limiting rod 132a connected to the lower annular end cap 13 and a second limiting rod 132b slidably disposed within the first limiting rod 132a. The arrangement of the first limiting rod 132a and the second limiting rod 132b allows the first limiting rod 132a and the second limiting rod 132b to limit the position of the coil wound within the wiring trough 130, thereby preventing the coil from being dislodged from the wiring trough 130.

[0028] Furthermore, a clamping block 132b1 is connected to the side of the second limiting rod 132b away from the first limiting rod 132a. A clamping slot 133 is formed on the lower annular end cap 13, which engages with the clamping block 132b1. The width of the clamping block 132b1 is equal to the width of the clamping slot 133, and the clamping block 132b1 is movably engaged within the clamping slot 133. Through the cooperation between the clamping block 132b1 and the clamping slot 133, when the coil is wound to a certain extent, the second limiting rod 132b is extended from the first limiting rod 132a. At this time, the clamping block 132b1 is engaged with the clamping slot 133 on the upper annular end cap 12, thereby limiting the position of the coil wound in the wiring trough 130, thereby preventing the coil in the wiring trough 130 from being easily dislodged.

[0029] In this embodiment, a plurality of wire slots 110 are arranged along the axis of the winding post 11. The cross-sectional curve of each wire slot 110 is a half-circular arc, and the diameter of the cross-sectional curve is equal to the diameter of the coil. This arrangement of the wire slots effectively secures the coil within the slots during winding, preventing the coil from loosening.

[0030] In this embodiment, a terminal block 134 is provided on the lower annular end cap 13. The terminal block 134 is provided with a slot 134a, and the coil terminal 20 is inserted into the slot 134a. Specifically, the terminal block 134 is integrally formed with the lower annular end cap 13. Such a configuration can avoid or reduce the phenomenon of tearing at the connection between the terminal block 134 and the lower annular end cap 13, improve the connection strength between the terminal block and the lower annular end cap 13, and extend the service life of the terminal block 134. Of course, in other embodiments of the present invention, the terminal block 134 can be welded or adhesively connected to the lower annular end cap 13, and the present invention does not make any specific restrictions.

[0031] In this embodiment, at least one fixing hole 120 is further provided on the upper annular end cover 12 .

[0032] To sum up, the embodiment of the present invention provides a coil wire terminal. When the coil is wound from the wire groove 110 to the missing groove 131 and passes through the wiring groove 130, the wiring groove 130 plays a further guiding and limiting role in the winding of the coil, thereby helping to further improve the winding effect of the coil when it is wound in the wiring groove 130; and the edge position of the lower annular end cover 13 is also provided with a plurality of telescopic limit rods 132 for limiting the wire in the wiring groove 130. Through the setting of the telescopic limit rod 132, the telescopic limit rod 132 can play a limiting role on the coil wound in the wiring groove 130, so that the coil located in the wiring groove 130 is not easy to detach from the wiring groove 130.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coil wire terminal, comprising a coil frame (10) and a coil terminal (20) mounted on the coil frame (10), wherein the coil terminal (20) is used to be electrically connected to two terminals of a relay coil, and is characterized in that: The coil frame (10) includes a winding post (11) for winding a coil, and an upper annular end cover (12) and a lower annular end cover (13) arranged on both sides of the winding post (11) for limiting the wound coil. The winding post (11) is provided with a plurality of wire grooves (110), the outer surface of the lower annular end cover (13) is provided with a wiring groove (130), the edge position of the lower annular end cover (13) is provided with a notch (131), the notch (131) is connected to the wiring groove (130), and the edge position of the lower annular end cover (13) is also provided with a plurality of telescopic limiting rods (132) for limiting the wire in the wiring groove (130).

2. The coil wire terminal according to claim 1, characterized in that: The telescopic limiting rod (132) comprises a first limiting rod (132a) connected to the lower annular end cover (13) and a second limiting rod (132b) slidably arranged inside the first limiting rod (132a).

3. The coil wire terminal according to claim 2, characterized in that: The second limiting rod (132b) is connected to a clamping block (132b1) on a side away from the first limiting rod (132a), and the lower annular end cover (13) is provided with a clamping groove (133) that is clamped with the clamping block (132b1).

4. The coil wire terminal according to claim 3, characterized in that: The width of the clamping block (132b1) is equal to the width of the clamping slot (133), and the clamping block (132b1) is movably clamped in the clamping slot (133).

5. The coil wire terminal according to any one of claims 1 to 4, characterized in that: A plurality of the wire-passing slots (110) are arranged along the axial direction of the winding pole (11); a transverse curve of the wire-passing slots (110) is a 1 / 2 arc line, and a diameter of the transverse curve is equal to a diameter of the coil.

6. The coil wire terminal according to any one of claims 1 to 4, characterized in that: The lower annular end cover (13) is provided with a terminal block (134), the terminal block (134) is provided with a slot (134a), and the coil terminal (20) is plugged into the slot (134a).

7. The coil wire terminal according to any one of claims 1 to 4, characterized in that: At least one fixing hole (120) is also provided on the upper annular end cover (12).

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