A motor connector

Abstract

This utility model discloses a motor connector, comprising: a plastic housing having a receiving cavity with one open side, the receiving cavity including a bottom wall, a pair of oppositely arranged long side walls, and a pair of oppositely arranged short side walls, the long side walls and short side walls surrounding the bottom wall, one of the long side walls having a plurality of wire outlet holes communicating with the receiving cavity; a plastic body disposed within the receiving cavity, the plastic body having a plurality of terminal holes extending along the thickness direction; and a plurality of terminals disposed within the terminal holes; wherein, the bottom wall of the receiving cavity has at least one slot extending along the width direction, and the lower surface of the plastic body has a rib, the rib mating with the slot to achieve a stable connection between the plastic body and the plastic housing. By using a slot inside the plastic housing and a rib on the plastic body to cooperate, the holding force between the two is enhanced; by designing the plastic housing as a three-channel and the body as a three-in-one unit, the pin layout is optimized, assembly errors are reduced, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a motor connector. Background Technology

[0002] Existing motor connectors typically use a single channel, resulting in large product size, high space consumption, and high cost. The housing and wire clamp are designed as two-piece plastic components, which makes assembly complex and the connector's holding force is insufficient under high-frequency vibration. In addition, existing motor connectors use square elastic terminals, and the unstable stamping and bending dimensions affect the terminal's conductivity and the feel of mating. Utility Model Content

[0003] Based on the above-mentioned technical problems, this application provides a motor connector that can effectively reduce the number of connectors and ensure that it will not loosen under high-frequency vibration.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a motor connector, comprising: a plastic housing having a receiving cavity with one open side, the receiving cavity including a bottom wall, a pair of long side walls arranged opposite each other along the length direction, and a pair of short side walls arranged opposite each other along the width direction, the long side walls and short side walls surrounding the bottom wall, one of the long side walls having a plurality of wire outlet holes communicating with the receiving cavity; a plastic body disposed within the receiving cavity, the plastic body having a plurality of terminal holes penetrating along the thickness direction; and a plurality of terminals disposed within the terminal holes;

[0005] The cavity has at least one slot extending in the width direction on its bottom wall, and the lower surface of the plastic body has a rib. The rib and the slot are matched and connected to make the plastic body and the plastic shell stably connected.

[0006] As a preferred embodiment, the slot includes a pair of sidewalls extending along the width direction, and the sidewalls are provided with a plurality of spaced ribs, the extension direction of which is the same as the thickness direction of the plastic body.

[0007] As a preferred embodiment, at least one positioning groove is provided on the other long side wall of the receiving cavity, and at least one protrusion is provided on the side of the plastic body, the protrusion being engaged with the positioning groove.

[0008] As a preferred embodiment, the short sidewall of the receiving cavity is provided with at least a pair of positioning protrusions, and the sidewall of the plastic body in the width direction is provided with at least a pair of positioning grooves, wherein the positioning protrusions and positioning grooves are connected in a cooperating manner.

[0009] As a preferred embodiment, the terminal includes a contact portion, a locking portion, and a bonding portion. The contact portion is formed by multiple spring arms surrounding it. The locking portion is located between the contact portion and the bonding portion and extends obliquely outward. The bonding portion is used to connect to a cable.

[0010] As a preferred embodiment, the terminal hole has an internal fitting groove, and the locking part engages with the fitting groove to fix the terminal to the plastic body.

[0011] As a preferred embodiment, a waterproof ring is provided inside any of the cable outlet holes, and a nut is provided outside the cable outlet holes; as a further preferred embodiment, three cable outlet holes are arranged side by side.

[0012] As a preferred embodiment, a pair of locking components are also included, which are located on the outer side of the short sidewall of the plastic housing for engaging with the mating connector.

[0013] The beneficial effects of this utility model are as follows: by using a slot inside the plastic shell and a rib on the plastic body to cooperate, the holding force between the two is enhanced; by designing the plastic shell as a three-channel and the main body as a three-in-one to optimize the pin layout, the two or three originally scattered connectors are integrated into a single structure, reducing the connection steps in the assembly process, reducing assembly errors and improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the motor connector in an embodiment of this utility model;

[0015] Figure 2 This is an exploded view of the motor connector in an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the plastic housing of the motor connector in an embodiment of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the plastic body of the motor connector in an embodiment of this utility model;

[0018] Figure 5 This is a schematic diagram of the terminal structure of the motor connector in an embodiment of this utility model;

[0019] Figure 6 This is a cross-sectional view of the motor connector in an embodiment of the present invention.

[0020] Figure 7 This is a cross-sectional structural schematic diagram of the motor connector from another perspective in an embodiment of this utility model;

[0021] Figure label:

[0022] 10-Plastic shell, 11-Bottom wall, 12-Long side wall, 13-Short side wall, 101-Receiving cavity, 102-Cable outlet, 110-Card slot, 1101-Side wall, 11010-Rib, 120-Positioning groove, 130-Positioning protrusion;

[0023] 20-Plastic body, 201-Terminal hole, 2010-Matching groove, 202-Rib, 203-Protrusion, 204-Positioning groove;

[0024] 30-Terminal, 301-Contact part, 302-Wire bonding part, 303-Locking part, 304-Fixing part;

[0025] 40 - Locking part, 50 - Waterproof ring, 60 - Nut. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In this embodiment, the length direction is defined as the x-direction, the perpendicular direction, i.e., the width direction, is defined as the y-direction, and the thickness direction of the plastic body is defined as the z-direction. In this embodiment, the definition of direction is relative to the posture shown in the figure. In other postures, the definition of direction changes with the change of posture, and is not limited here.

[0028] like Figures 1 to 2 The following is an embodiment of this application: A motor connector includes: a plastic housing 10, the plastic housing 10 having a receiving cavity 101 opening in the z-direction, the receiving cavity 101 including a bottom wall 11, a pair of long side walls 12 disposed opposite each other in the x-direction, and a pair of short side walls 13 disposed opposite each other in the y-direction, the long side walls 12 and the short side walls 13 surrounding the bottom wall 11, one of the long side walls 12 having a plurality of wire outlet holes 102 communicating with the receiving cavity 101; a plastic body 20, installed in the receiving cavity 101 in the -z-direction, the plastic body 20 having a plurality of terminal holes 201 penetrating in the thickness direction (i.e., the z-direction); and a plurality of terminals 30, respectively disposed in the terminal holes 201; wherein, referring to Figure 3 and Figure 4 The bottom wall 11 of the receiving cavity 101 is provided with at least one slot 110 extending in the y direction, and the lower surface of the plastic body 20 is provided with a rib 202. The rib 202 and the slot 110 are matched and connected to make the plastic body 20 and the plastic shell 10 stably connected.

[0029] Reference Figure 3 The slot 110 includes a pair of sidewalls 1101 extending along the y-direction. To enhance the holding force between the plastic body 20 and the plastic shell 10, multiple spaced ribs 11010 are provided on the sidewalls 1101, with the ribs 11010 extending towards the z-direction. The plastic body 20 and the plastic shell 10 are installed using a T-shaped slot 110 and a multi-point track to ensure that the motor connector will not loosen under high-frequency vibration, thus ensuring the stability of the motor connector.

[0030] Reference Figure 3 and Figure 4 To further enhance the connection stability between the plastic body 20 and the plastic shell 10, at least one positioning groove 120 is provided on the other long side wall 12 of the receiving cavity 101, and at least one protrusion 203 is provided on the side of the plastic body 20, which mates with the positioning groove 120. At least one pair of positioning protrusions 130 are provided on the short side wall 13 of the receiving cavity 101, and at least one pair of positioning grooves 204 are provided on the side wall in the width direction of the plastic body 20, with the positioning protrusions 130 and positioning grooves 204 engaging. The plastic shell 10 and the plastic body 20 use a stepped structure, so that the plastic body 20 automatically slides into the plastic shell 10 and is locked in place by pressing, ensuring a simple installation process and a stable connection.

[0031] Reference Figure 5 and Figure 6 The terminal 30 includes a contact portion 301, a locking portion 303, and a wire-punching portion 302. The contact portion 301 is formed by multiple spring arms surrounding it. The locking portion 303 is located between the contact portion 301 and the wire-punching portion 302 and extends outward at an angle. The wire-punching portion 302 is used to connect to a cable (not shown in the figure) and achieve electrical connection. A fixing portion 304 is also connected to the rear end of the wire-punching portion 302 to fix the cable. The terminal hole 201 has a fitting groove 2010 inside. The locking portion 303 is inserted into the fitting groove 2010 to fix the terminal 30 to the plastic body 20. The stamped round spring-loaded wire-punching terminal 30 makes perfect contact with the round end of the plate, making the electrical performance more stable and reliable than that of a flat square terminal. The superior elasticity also helps to increase the durability of the product. The locking portion 303 is assembled with the plastic body 20 using a common buckle for waterproofing and has a convenient disassembly function. The tail of the terminal 30 adopts a V-shaped punching form to tightly connect with the cable.

[0032] Reference Figure 2The cable outlet 102 has an annular waterproof ring 50 inside and a nut 60 outside. The number of cable outlets 102 can be set according to actual needs. This embodiment does not limit the number of cable outlets. As an example, this embodiment has three cable outlets 102 arranged side by side. The plastic shell 10 is designed with one outlet and three cable outlets, which effectively reduces the number of connectors. The cable outlet 102 has a flexible clamp that contacts the silicone waterproof ring 50 and is locked by the square nut 60. This clamp clamps the cable and compresses the waterproof ring 50 to form a seal, ensuring the waterproof performance of the product and saving time in assembling the clamp.

[0033] Reference Figure 7 In this embodiment, the motor connector is also provided with a pair of locking components 40. The locking components 40 are located on the outside of the short side wall 13 of the plastic housing 10 and are used to engage with the mating connector (not shown in the figure).

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] In the description of this application, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the meaning of the above terms in this application according to the specific circumstances.

[0036] In the description of this embodiment, the terms "upper," "lower," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first" and "second" are used only for distinction in description and have no special meaning.

[0037] The embodiments described above merely illustrate the implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A motor connector, characterized in that, include: A plastic housing having an open cavity, the cavity including a bottom wall, a pair of long side walls opposite each other along the length direction, and a pair of short side walls opposite each other along the width direction, the long side walls and short side walls surrounding the bottom wall, one of the long side walls having a plurality of cable outlet holes communicating with the cavity; a plastic body disposed within the cavity, the plastic body having a plurality of terminal holes penetrating along the thickness direction; and a plurality of terminals disposed within the terminal holes. The cavity has at least one slot extending in the width direction on its bottom wall, and the lower surface of the plastic body has a rib. The rib and the slot are matched and connected to make the plastic body and the plastic shell stably connected.

2. The motor connector according to claim 1, characterized in that: The slot includes a pair of sidewalls extending along the width direction, and the sidewalls are provided with a plurality of spaced ribs, the extension direction of which is the same as the thickness direction of the plastic body.

3. The motor connector according to claim 1, characterized in that: At least one positioning groove is provided on the other long side wall of the receiving cavity, and at least one protrusion is provided on the side of the plastic body, the protrusion being engaged with the positioning groove.

4. The motor connector according to claim 1, characterized in that: The short side wall of the receiving cavity is provided with at least one pair of positioning protrusions, and the side wall of the plastic body in the width direction is provided with at least one pair of positioning grooves, and the positioning protrusions and positioning grooves are connected in cooperation.

5. The motor connector according to claim 1, characterized in that: The terminal includes a contact portion, a locking portion, and a bonding portion. The contact portion is formed by multiple spring arms surrounding it. The locking portion is located between the contact portion and the bonding portion and extends obliquely outward. The bonding portion is used to connect to a cable.

6. The motor connector according to claim 5, characterized in that: The terminal hole has a fitting groove inside, and the locking part is inserted into the fitting groove to fix the terminal to the plastic body.

7. The motor connector according to claim 1, characterized in that: The outlet hole is equipped with a waterproof ring inside and a nut on the outside.

8. The motor connector according to claim 1 or 7, characterized in that: The cable outlet is provided in three rows.

9. The motor connector according to claim 1, characterized in that: It also includes a pair of locking components located on the outside of the short sidewall of the plastic housing for engaging with the mating connector.

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