Motor terminal structure

Abstract

The utility model relates to the technical field of motor parts, in particular to a motor terminal structure, which ensures that a round copper wire can be tightly attached to the bottom of a hook when the wire passes each time. Comprising a terminal body, the terminal body is of a hook type terminal structure, the terminal body is pressed on a plastic framework, a bending hook is arranged in the middle of the terminal body, and an enameled wire is tightly attached to the bottom of the bending hook when passing through the terminal body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of motor parts, in particular to a motor terminal structure. BACKGROUND

[0002] The brushless motor is composed of a stator and a rotor, the stator part is composed of a winding, an iron core and a framework injected on the iron core, the winding is usually a round copper wire, and the brushless motor usually needs fixed connection forms such as delta connection and star connection, there are two trends for such connection, one is that the enameled wire needs to be stripped of paint and welded by soldering, and the other is welded by terminal resistance welding, the structure adopts the form of resistance welding, the terminal adopts a hook terminal, the hook terminal usually has a poor welding problem, and the main reason is that the resistance is too large when the crimp terminal is directly pressed to the enameled wire, resulting in a hook explosion phenomenon, and the root cause of the hook explosion is that the round copper wire does not completely adhere to the root of the hook during winding, so that the tail of the hook is not closed in the first step of the welding process due to the copper wire in the middle. SUMMARY

[0003] To solve the above technical problems, the utility model provides a motor terminal structure which can ensure that the round copper wire is tightly attached to the bottom of the hook every time the wire passes.

[0004] The utility model discloses a motor terminal structure, including the terminal body, the terminal body is hook terminal structure, the terminal body is pressed and is installed on the plastic framework, the terminal body has the bending hook in the middle, when the enameled wire passes, the bottom of the bending hook is tightly attached, the structure can ensure that the round copper wire is tightly attached to the bottom of the bending hook every time the wire passes, so that the tail of the hook can be directly closed in the first step of the resistance welding process, the current can pass through the tail closure and the bending place, so that heat is generated to vaporize the paint of the copper wire, and the hook and the enameled wire are fused together.

[0005] Preferably, the terminal body is provided with a downward inclined U-shaped groove at the bending portion; the U-shaped groove can ensure that the round copper wire is tightly attached to the bottom of the bending hook when the wire passes, ensuring stability.

[0006] Preferably, the hook side of the terminal body is provided with an arc-shaped barb structure; the arc-shaped barb structure can ensure that the terminal and the plastic framework are always pressed and installed with a certain pulling force, thereby ensuring the stability of the structure.

[0007] Compared with the prior art, the beneficial effects of the utility model are that: the structure can guarantee that the round copper wire is tightly attached to the bottom of the bent hook each time the wire passes, thereby guaranteeing that the tail of the hook can be directly closed during the first step of pressure welding in the resistance welding process, so that the current can pass through the tail closure and the bent part, thereby generating heat to vaporize the paint of the copper wire and cause the hook and the enameled wire to be fused together. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is an appearance view of the utility model after installation;

[0009] Figure 2 is a top view appearance view of the round copper wire inside the hook;

[0010] Figure 3 is an appearance view of the round copper wire inside the hook;

[0011] Figure 4 is a cross-sectional structure schematic view of the utility model after installation;

[0012] Figure 5 is a structure schematic view of the utility model;

[0013] Markings in the drawings: 1, terminal body;2, plastic framework;3, round copper wire;4, bent hook;5, U-shaped groove;6, arc-shaped barb structure. DETAILED DESCRIPTION

[0014] In order to facilitate understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0015] As Figures 1 to 5 shown, the terminal body 1 is a hook type terminal structure, the terminal body 1 is press-fitted on the plastic framework 2, the terminal body 1 is provided with a bent hook 4 in the middle, the enameled wire is tightly attached to the bottom of the bent hook 4 when passing, the two sides of the terminal body 1 are provided in a bent shape, and the bent part is provided with a downward inclined U-shaped groove 5, and the hook side of the terminal body 1 is provided with an arc-shaped barb structure 6;

[0016] The U-shaped groove 5 can guarantee that the round copper wire is tightly attached to the bottom of the bent hook 4 when the wire passes, ensuring stability, the arc-shaped barb structure 6 can guarantee that the terminal and the plastic framework 2 can always guarantee a certain pull-out force after being press-fitted, thereby guaranteeing the stability of the structure, the structure can guarantee that the round copper wire 3 is tightly attached to the bottom of the bent hook 4 each time the wire passes, thereby guaranteeing that the tail of the hook can be directly closed during the first step of pressure welding in the resistance welding process, so that the current can pass through the tail closure and the bent part, thereby generating heat to vaporize the paint of the copper wire and cause the hook and the enameled wire to be fused together.

[0017] As Figures 1 to 5 shown, the utility model discloses a motor terminal structure, when working, the enameled wire passes through, clings to the bottom of hook, and the both sides of hook have the downwardly inclined U -shaped groove 5, the groove can guarantee that the round copper wire 3 can cling to the bottom of hook when passing through the line, and the arc-shaped barb structure 6 can guarantee that the terminal can always guarantee a certain pullout force after being pressed with the terminal body 1, thereby guaranteeing the stability of structure, thereby guaranteeing that the tail of hook can be directly closed when the first step of pressure welding, makes the current pass through the tail closed place and the bending place two places through the current, thereby generating heat, to make the paint of copper wire vaporization, make hook and enameled wire hot melt together.

[0018] The above only is the preferred implementation of the utility model, should point out, for the ordinary skill of this technical field, on the premise of not departing from the technical principle of the utility model, can also make a number of improvements and variations, these improvements and variations also should be regarded as the protection range of the utility model.

Claims

1. A motor terminal structure, characterized in that, Includes a terminal body (1), which is a hook terminal structure. The terminal body (1) is pressed onto a plastic frame (2). The terminal body (1) has a bent hook (4) in the middle. When the enameled wire passes through, it is close to the bottom of the bent hook (4).

2. The motor terminal structure as described in claim 1, characterized in that, The terminal body (1) is bent on both sides, and a downwardly inclined U-shaped groove (5) is provided at the bend.

3. The motor terminal structure as described in claim 1, characterized in that, The hook side of the terminal body (1) has an arc-shaped barb structure (6).

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