Connection structure of wiring terminal and insulation sleeve

Abstract

The utility model provides a connecting structure of a wiring terminal and an insulating sleeve, the wiring terminal comprises a terminal body and a welding block arranged on the terminal body, the insulating sleeve comprises an insulating body, the connecting structure comprises a slot which is arranged on the insulating body and is used for the insertion of the welding block, and the welding block is inserted into the slot. The insulation body is provided with a positioning rib used for supporting the wiring terminal, and the connection structure can overcome the defects that in the prior art, due to the fact that the structure of a contact pin is small, the contact surface of the contact pin and the insulation sleeve is small, the contact pin is prone to inclining or displacing in the connection process, and consequently a wire is fractured in the pulling process.

Description

Technical Field

[0001] The utility model relates to the technical field of motor wiring terminals, in particular to a connection structure between a wiring terminal and an insulating sleeve. Background Art

[0002] In order to increase the insulation strength and creepage distance between the stator winding and the conductor, an insulating sleeve is provided on the stator winding. The insulating sleeve is installed on the terminal block to play an insulating role. In the prior art, a pin is generally provided on the insulating sleeve to fix the enameled wire. During the manufacturing process, the enameled wire inside the core is led outward and wound around the pin to ensure that the exposed part of the enameled wire can contact the metal part of the pin. However, in the prior art, a separate pin is inserted into the insulating sleeve. Due to the small structure of the pin, the contact surface between the pin and the insulating sleeve is relatively small, which can easily cause the pin to tilt or shift during the connection process, thereby affecting the breakage of the wire during the pulling process. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the contact surface between the pin and the insulating sleeve is relatively small due to the smaller structure of the pin, which easily causes the pin to tilt or shift during the connection process, thereby affecting the breakage of the wire during the pulling process, thereby providing a connection structure between the terminal and the insulating sleeve in which the pin and the insulating sleeve are tightly connected.

[0004] To this end, the utility model provides a connection structure between a wiring terminal and an insulating sleeve, the wiring terminal including a terminal body and a welding block arranged on the terminal body, the insulating sleeve including an insulating body, the connection structure including a slot arranged on the insulating body for inserting the welding block, and the insulating body having a positioning rib for supporting the wiring terminal.

[0005] Furthermore: a connection end is provided between the terminal body and the welding block for connecting the two, one end of the welding block and the connection end can be clamped in the slot, and the other end extends back to the slot, and the insulating body also has an avoidance groove for avoiding the connection end.

[0006] Furthermore: the insulating body includes an extension plate and an extension rib located on the side of the extension plate for winding the enameled wire. The slot is opened on the extension plate. The extension plate is also provided with a guide slope for guiding the enameled wire to be led out. A limiting space for accommodating the enameled wire is formed between the guide slope and the extension rib.

[0007] Furthermore: at least one card slot and a plurality of extension blocks are provided on the terminal body, the card slot is opened between two adjacent extension blocks, the two adjacent extension blocks are arranged in parallel and an "L"-shaped structure is arranged between the extension block and the terminal body.

[0008] Further: the clamping slot includes a first clamping slot and a second clamping slot, the first clamping slot is opened on the terminal body, the second clamping slot is located between two adjacent extension blocks, and the first clamping slot and the second clamping slot are arranged at intervals.

[0009] Further: two first card slots are provided, and three second card slots are provided.

[0010] The technical solution of the utility model has the following advantages:

[0011] 1. The utility model provides a terminal block connected to an enameled wire, wherein a welding block on a terminal body is inserted into a slot of an insulating body for fixing. After the enameled wire is led outward, it is firstly wound around the terminal body for preliminary fixing, and then the enameled wire is welded to the welding block. In order to effectively fix the position of the terminal, a positioning rib is provided on the insulating sleeve. When the terminal block is plugged into the insulating sleeve, the welding block is inserted into the slot, and a portion of the top thereof extends out of the slot for winding the enameled wire. The bottom of the terminal body contacts the top of the positioning rib, thereby providing support for the terminal block and preventing the terminal from shaking. This is superior to the prior art. After the terminal block and the insulating sleeve are plugged into each other, the connection stability of the terminal block can be greatly improved.

[0012] 2. The utility model provides a terminal block connected to an enameled wire, wherein a connecting end is provided between a terminal body and a welding block to connect the two. During the manufacturing process, the terminal body, the connecting end and the welding block are stamped and formed as a whole. After the stamping is completed, the connecting end is bent to bend the connecting end and the welding block, and the bent part is inserted into a slot. An avoidance groove is provided on the insulating body to avoid the connecting end. When the connecting end and the welding block are inserted into the avoidance groove, the side wall of the terminal body will conflict with the insulating body, thereby preventing the connecting end and the welding block from moving left and right after being inserted into the slot, thereby improving the connection stability of the terminal block. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the insulating body;

[0015] Figure 2 is a top view of the insulating body;

[0016] Figure 3It is an assembly drawing between the terminal body and the insulating body;

[0017] Figure 4 This is a structural diagram of the terminal body.

[0018] Description of reference numerals:

[0019] 1. Terminal body; 11. Welding block; 12. Connecting end; 13. Extension block; 2. Insulating body; 21. Extension plate; 22. Extension rib; 23. Guide slope; 3. Slot; 4. Positioning rib; 5. Avoidance groove; 6. First clamping groove; 61. Second clamping groove. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Example

[0025] The present embodiment provides a connection structure between a wiring terminal and an insulating sleeve, wherein the wiring terminal includes a terminal body 1 and a welding block 11 arranged on the terminal body 1, the insulating sleeve includes an insulating body 2, the connection structure includes a slot 3 arranged on the insulating body 2 for inserting the welding block 11, and the insulating body 2 has a positioning rib 4 for supporting the wiring terminal.

[0026] The above-mentioned specific improvements are as follows: as shown in the figure, compared with the prior art, the welding block 11 on the terminal body 1 is inserted into the slot 3 of the insulating body 2 for fixation. After the enameled wire is led out, it is firstly wrapped around the terminal body 1 for preliminary fixation, and then the enameled wire is welded to the welding block 11. In order to effectively fix the position of the terminal, a positioning rib 4 is provided on the insulating sleeve. When the terminal is plugged into the insulating sleeve, the welding block 11 is inserted into the slot 3, and a part of its top extends out of the slot 3 for winding the enameled wire. The bottom of the terminal body 1 conflicts with the top of the positioning rib 4, thereby providing support for the terminal and preventing the terminal from shaking. This is superior to the prior art. When the terminal is plugged into the insulating sleeve, the connection stability of the terminal can be greatly improved.

[0027] On the basis of the above embodiment: a connection end 12 is provided between the terminal body 1 and the welding block 11 for connecting the two, one end of the welding block 11 and the connection end 12 can be clamped in the slot 3, and the other end extends back to the slot 3, and the insulating body 2 also has an avoidance groove 5 for avoiding the connection end 12.

[0028] The above-mentioned specific improvements are as follows: as shown in the figure, there is a connecting end 12 connecting the terminal body 1 and the welding block 11. During the manufacturing process, the terminal body 1, the connecting end 12 and the welding block 11 are stamped and formed as a whole. After the stamping is completed, the connecting end 12 is bent to bend the connecting end 12 and the welding block 11, and the bent part is inserted into the slot 3. The insulating body 2 is provided with an avoidance groove 5 for avoiding the connecting end 12. When the connecting end 12 and the welding block 11 are inserted into the avoidance groove 5, the side wall of the terminal body 1 will conflict with the insulating body 2, thereby preventing the connecting end 12 and the welding block 11 from moving left and right after being inserted into the slot 3, thereby improving the connection stability of the terminal.

[0029] On the basis of the above embodiment: the insulating body 2 includes an extension plate 21 and an extension rib 22 located on the side of the extension plate 21 for winding the enameled wire, the slot is opened on the extension plate 21, and the extension plate 21 is also provided with a guide slope 23 for guiding the enameled wire to be led out, and a limiting space for accommodating the enameled wire is formed between the guide slope 23 and the extension rib 22.

[0030] The above-mentioned specific improvement is as follows: after the connection between the terminal block and the insulating body 2 is completed, the enameled wire is welded to the welding block 11, and then wrapped around the welding block 11, and finally led out through the position between the guide bevel 23 and the extension rib 22. By setting the limiting space, the movement range of the enameled wire can be limited to prevent the enameled wire from being desoldered during the pulling process, thereby causing the motor to be powered off.

[0031] On the basis of the above embodiment: at least one card slot and a plurality of extension blocks 13 are provided on the terminal body 1, the card slot is opened between two adjacent extension blocks 13, the two adjacent extension blocks 13 are arranged in parallel and an "L"-shaped structure is arranged between the extension block 13 and the terminal body 1.

[0032] The above-mentioned specific improvements are as follows: multiple extension blocks 13 are set on the terminal body 1, and a slot is formed between two extension blocks 13. When the enameled wire is led out from the iron core, it is inserted into the slot, and then wrapped around the extension block 13, and then inserted into the second slot, and so on. After the winding is completed, the enameled wire is welded together with the welding block 11 to complete the power supply. In this way, the position of the enameled wire can be effectively fixed to avoid pulling of the enameled wire, which may cause desoldering between the enameled wire and the welding block 11.

[0033] On the basis of the above embodiment: the card slot includes a first card slot 6 and a second card slot 61, the first card slot 6 is opened on the terminal body 1, the second card slot 61 is located between two adjacent extension blocks 13, and the first card slot 6 and the second card slot 61 are spaced apart.

[0034] The above-mentioned specific improvements are as follows: the wires wound on the motor housing are usually divided into hard wires and soft wires. According to different application scenarios and requirements, different sizes of enameled wires need to be selected. In order to enable the terminal to adapt to enameled wires of different sizes, the card slot is divided into a first card slot 6 and a second card slot 61. The size of the first card slot 6 is larger than the size of the second card slot 61. When the motor needs to withstand greater tension and pressure, a larger enameled wire is required. The enameled wire needs to be clipped into the first card slot 6 for winding. When the enameled wire needs to be frequently bent or moved, a smaller enameled wire can be used. The enameled wire is no longer wound in the first card slot 6, but is wound in the smaller second card slot 61. In this way, the terminal can be suitable for enameled wires of different sizes at the same time, thereby improving the versatility of the terminal.

[0035] On the basis of the above embodiment: two first clamping slots 6 are provided, and three second clamping slots 61 are provided.

[0036] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A connection structure between a terminal and an insulating sleeve, characterized in that: The wiring terminal comprises a terminal body (1) and a welding block (11) arranged on the terminal body (1); the insulating sleeve comprises an insulating body (2); the connection structure comprises a slot (3) arranged on the insulating body (2) for inserting the welding block (11); and the insulating body (2) has a positioning rib (4) for supporting the wiring terminal.

2. The connection structure of a terminal block and an insulating sleeve according to claim 1, characterized in that: A connecting end (12) for connecting the terminal body (1) and the welding block (11) is provided between the two. One end of the welding block (11) and the connecting end (12) can be clamped in the slot (3), and the other end extends away from the slot (3). The insulating body (2) also has an avoidance groove (5) for avoiding the connecting end (12).

3. The connection structure of a terminal block and an insulating sleeve according to claim 2, characterized in that: The insulating body (2) comprises an extension plate (21) and an extension rib (22) located on the side of the extension plate (21) for winding the enameled wire, the slot (3) is provided on the extension plate (21), and the extension plate (21) is also provided with a guide inclined surface (23) for guiding the enameled wire to be led out, and a limiting space for accommodating the enameled wire is formed between the guide inclined surface (23) and the extension rib (22).

4. The connection structure of a wiring terminal and an insulating sleeve according to claim 3, characterized in that: At least one card slot and a plurality of extension blocks (13) are provided on the terminal body (1); the card slot is opened between two adjacent extension blocks (13); the two adjacent extension blocks (13) are arranged in parallel and an "L"-shaped structure is formed between the extension blocks (13) and the terminal body (1).

5. The connection structure of a wiring terminal and an insulating sleeve according to claim 4, characterized in that: The clamping slot comprises a first clamping slot (6) and a second clamping slot (61); the first clamping slot (6) is provided on the terminal body (1); the second clamping slot (61) is located between two adjacent extension blocks (13); and the first clamping slot (6) and the second clamping slot (61) are arranged at intervals.

6. The connection structure of a wiring terminal and an insulating sleeve according to claim 5, characterized in that: The first clamping slots (6) are provided with two, and the second clamping slots (61) are provided with three.

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