Motor terminal block assembly for ease of processing

Abstract

The utility model discloses a kind of motor terminal board assemblies facilitating processing, including plastic encapsulation ring, the plastic encapsulation ring is equipped with upwardly extending three-phase groove and radially extending terminal hole;The terminal board assembly further includes three conductive sheets, each The conductive sheet includes conducting ring and multiple wire claws and a three-phase copper sheet arranged on the conducting ring, the conductive sheet is embedded in the plastic encapsulation ring, wire claw is stretched out from terminal hole, three-phase copper sheet is stretched out upwardly from three-phase groove;The wire claw includes terminal body from the root of conducting ring and extension hole formed by stamping from terminal body;The plastic encapsulation ring is insulating ring, and the three-phase groove of the plastic encapsulation ring can wrap the three-phase copper sheet.The utility model structure design is reasonable, extension hole at wire claw is formed using the mode of stamping forming, production efficiency is high, product yield is high, and the conductivity of wire claw and wire after extrusion welding is high.

Description

Technical Field

[0001] This utility model relates to the field of brushless motor technology, and in particular to a motor terminal block assembly that is easy to process. Background Technology

[0002] The Booster brushless motor used in new energy vehicles requires low voltage, high torque, small size, and light weight. Therefore, the motor must have stable wiring, small size, good insulation, high reliability, and resistance to shock and vibration.

[0003] Traditional terminal blocks (or terminal block support assemblies) use Y-shaped terminals. For example, the terminal shape disclosed in Chinese Utility Model Patent - Motor Terminal Block Support Assembly (authorization announcement number: CN207304259U) is Y-shaped. The root of the Y-shaped terminal is embedded in the plastic support body of the terminal block, and the Y-shaped groove at the front end is formed by stamping. Because the terminal is relatively thin, the terminal is prone to deformation when the front end is stamped to form a U-shaped groove. The stamped U-shaped groove is prone to defects, resulting in low efficiency and a relatively high defect rate. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a motor terminal block assembly that is easy to process. The structure is reasonably designed, and the extension hole at the wire claw is formed by stamping, which results in high production efficiency, high product yield, and high conductivity between the wire claw and the wire after extrusion welding.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a motor terminal block assembly that is easy to process. The terminal block assembly includes a plastic encapsulation ring, which has an upwardly extending three-phase slot and a radially extending terminal hole. The terminal block assembly also includes three conductive pieces, each of which includes a conductive ring, a plurality of wire claws disposed on the conductive ring, and a three-phase copper piece. The conductive pieces are embedded in the plastic encapsulation ring, the wire claws extend from the terminal hole, and the three-phase copper piece extends upward from the three-phase slot.

[0006] The wire claw includes a terminal body extending from the root of the conductive ring and an extension hole formed by stamping on the terminal body.

[0007] The plastic encapsulation ring is an insulating ring, and the three-phase slots of the plastic encapsulation ring can enclose the three-phase copper sheets.

[0008] To elaborate further, the three phase copper sheets of the three conductive sheets are the U-phase copper sheet, the V-phase copper sheet, and the W-phase copper sheet.

[0009] Furthermore, the depth of the extended hole is 3-6 mm and the diameter is 1-2 mm.

[0010] Furthermore, the outer circumferential surface of the plastic encapsulation ring extends outward and then downward to form multiple support feet.

[0011] Furthermore, a limiting groove is formed at the middle position of the lower end of the support leg.

[0012] Furthermore, the encapsulation ring and the three conductive sheets are integrally injection molded.

[0013] Furthermore, the root of the wire claw is integrally connected to the conductive ring, and the wire claw is formed by bending from its root.

[0014] To elaborate further, the three conductive sheets are designated as the first conductive sheet, the second conductive sheet, and the third conductive sheet. The three-phase copper sheets of the first conductive sheet are U-phase copper sheets, the three-phase copper sheets of the second conductive sheet are V-phase copper sheets, and the three-phase copper sheets of the third conductive sheet are W-phase copper sheets.

[0015] The beneficial effects of this utility model are:

[0016] The motor terminal block assembly of this utility model has a reasonable structure design. The extension hole at the wire claw is formed by stamping, which results in high production efficiency, high product yield, and high conductivity between the wire claw and the wire after extrusion welding.

[0017] Furthermore, the extension hole on the wire claw of this utility model is reasonably designed, which can ensure the smooth passage of wires (such as wires on the stator winding assembly of a motor) and the conductivity after extrusion welding. If the extension hole is too small, the wire will not be easy to pass through, resulting in low wire threading efficiency; if the extension hole is too large, the wall of the extension hole and the wire are prone to poor welding after extrusion, resulting in unsatisfactory conductivity.

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the conductive sheet of this utility model;

[0021] Figure 3 This is a top view of the conductive sheet of this utility model;

[0022] The parts in the attached diagram are labeled as follows:

[0023] Plastic encapsulation ring 1, three-phase slot 11, terminal hole 12, support foot 13, limiting slot 14, first conductive sheet 2, conductive ring 21, wire claw 22, terminal body 221, extension hole 222, three-phase copper sheet 23, second conductive sheet 3, third conductive sheet 4. Detailed Implementation

[0024] The following specific embodiments illustrate the detailed implementation of this utility model. Those skilled in the art can easily understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented in other different ways, that is, different modifications and changes can be made without departing from the scope disclosed in this utility model.

[0025] The descriptions of positions such as up, down, left, and right in this embodiment are based on the orientation in the accompanying drawings, have no special meaning, and are not intended to limit the scope of protection of this utility model.

[0026] Example: A motor terminal block assembly that is easy to manufacture, such as Figures 1 to 3 As shown, the assembly includes a plastic encapsulation ring 1, which has an upwardly extending three-phase slot 11 and a radially extending terminal hole 12; the terminal block assembly also includes three conductive plates, each of which includes a conductive ring 21, a plurality of wire claws 22 disposed on the conductive ring, and a three-phase copper plate 23. The conductive plates are embedded in the plastic encapsulation ring, the wire claws extend from the terminal hole, and the three-phase copper plate extends upward from the three-phase slot.

[0027] The wire claw 22 includes a terminal body 221 extending from the root of the conductive ring and an extension hole 222 formed by punching from the terminal body;

[0028] The plastic encapsulation ring is an insulating ring, and the three-phase slots of the plastic encapsulation ring can enclose the three-phase copper sheets.

[0029] In this embodiment, the three-phase copper sheets of the three conductive sheets are U-phase copper sheets, V-phase copper sheets, and W-phase copper sheets, respectively. That is, the three conductive sheets are the first conductive sheet 2, the second conductive sheet 3, and the third conductive sheet 4, respectively. The three-phase copper sheets of the first conductive sheet are U-phase copper sheets, the three-phase copper sheets of the second conductive sheet are V-phase copper sheets, and the three-phase copper sheets of the third conductive sheet are W-phase copper sheets.

[0030] In this embodiment, the depth of the extension hole is 3-6 mm, and the diameter is 1-2 mm. The size of the extension hole is reasonably designed to ensure that the wire (such as the wire on the stator winding of a motor) can pass through smoothly, and to ensure the conductivity after extrusion welding. If the size of the extension hole is too small, the wire will not be easy to pass through, resulting in low wire threading efficiency; if the size of the extension hole is too large, the weld between the hole wall and the wire is prone to be poor after extrusion, resulting in unsatisfactory conductivity.

[0031] In this embodiment, the outer circumference of the plastic encapsulation ring extends outward and then downward to form multiple support feet 13. A limiting groove 14 is formed at the middle position of the lower end of each support foot to ensure the stability of the terminal block assembly during installation.

[0032] In this embodiment, the encapsulation ring and the three conductive sheets are integrally injection molded.

[0033] In this embodiment, the root of the wire claw is integrally connected to the conductive ring, and the wire claw is formed by bending the root of the wire claw.

[0034] The working principle and process of this utility model:

[0035] The three conductive pads are stamped to form extended holes. Then, the roots of the pads are bent. The three conductive pads are placed into an injection mold and injection molded together with a plastic encapsulation ring. The wire is then passed through the pads. The pads are deformed by a welding machine and welded together with the wires by high-frequency resistance welding. The above manufacturing process is simple and has a high yield. Two of the pads can be selected for grounding.

[0036] The above description is merely an embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A motor terminal block assembly that is easy to manufacture, characterized in that: The terminal block assembly includes a plastic encapsulation ring (1), characterized in that: the plastic encapsulation ring is provided with an upwardly extending three-phase slot (11) and a radially extending terminal hole (12); the terminal block assembly also includes three conductive pieces, each of the conductive pieces including a conductive ring (21) and a plurality of wire claws (22) provided on the conductive ring and a three-phase copper sheet (23), the conductive pieces being embedded in the plastic encapsulation ring, the wire claws extending out from the terminal hole, and the three-phase copper sheet extending upward from the three-phase slot; The wire claw (22) includes a terminal body (221) extending from the root of the conductive ring and an extension hole (222) formed by stamping from the terminal body. The plastic encapsulation ring is an insulating ring, and the three-phase slots of the plastic encapsulation ring can enclose the three-phase copper sheets.

2. The easily manufacturable motor terminal block assembly according to claim 1, characterized in that: The three phase copper sheets of the three conductive sheets are U-phase copper sheet, V-phase copper sheet and W-phase copper sheet.

3. The easily manufacturable motor terminal block assembly according to claim 1, characterized in that: The depth of the extended hole is 3-6 mm, and the diameter is 1-2 mm.

4. The easily manufacturable motor terminal block assembly according to claim 1, characterized in that: The outer circumference of the plastic encapsulation ring extends outward and then downward to form multiple support feet (13).

5. The easily manufacturable motor terminal block assembly according to claim 4, characterized in that: A limiting groove (14) is formed at the middle position of the lower end of the support foot.

6. The easily manufacturable motor terminal block assembly according to claim 1, characterized in that: The encapsulation ring and the three conductive sheets are integrally injection molded.

7. The easily manufacturable motor terminal block assembly according to claim 1, characterized in that: The root of the wire claw is integrally connected to the conductive ring, and the wire claw is formed by bending the root of the wire claw.

8. The easily manufacturable motor terminal block assembly according to claim 1, characterized in that: The three conductive sheets are the first conductive sheet (2), the second conductive sheet (3), and the third conductive sheet (4). The three-phase copper sheet of the first conductive sheet is a U-phase copper sheet, the three-phase copper sheet of the second conductive sheet is a V-phase copper sheet, and the three-phase copper sheet of the third conductive sheet is a W-phase copper sheet.

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