Large-current 12-core threaded motor connector

By designing a high-current 12-pin threaded motor connector, and employing structures such as male connectors, female connectors, positioning components, and O-ring seals, the problems of low current carrying capacity and poor waterproofing were solved, thereby improving current carrying capacity and enhancing waterproofing, thus meeting the actual needs of electric bicycles.

CN223680429UActive Publication Date: 2025-12-16LIANYUNGANG LIANWEI TECH CO LTD
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Patent Information

Application Number
CN202520255535.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-16
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Existing motor connectors have low current carrying capacity, making it difficult to meet actual needs, and their waterproof performance is generally poor, which may lead to moisture ingress after prolonged use, affecting the performance.

Method used

A high-current 12-pin threaded motor connector was designed, which uses male and female connectors, internal positioning components and terminals, and combines O-rings and limit rings. The seal is achieved by rotating the nut, which improves the current carrying capacity and enhances the waterproof performance.

Benefits of technology

It achieves a maximum current carrying capacity of 45A, a higher waterproof rating, meets practical needs, and improves the practicality and user experience of motor connectors.

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Abstract

The utility model provides a large-current 12-core threaded motor connector which comprises a male end connecting piece and a female end connecting piece, a male end positioning piece, three first male terminals and nine second male terminals are installed in the male end connecting piece, and a female end positioning piece, three first female terminals and nine second female terminals are installed in the female end connecting piece. The female end positioning piece is sleeved with a nut, the nut is fixedly connected with a limiting baffle ring, the female end positioning piece is fixedly connected with an O-shaped sealing ring, the three first male terminals and the three first female terminals are arranged in a circumferential equal-angle mode, and the three first male terminals are inserted into the three first female terminals respectively. The nine second male terminals are respectively inserted into the nine second female terminals; the current-carrying capacity of the motor connector can be improved, the maximum current-carrying capacity can reach 45 A, the actual use requirement can be better met, a better waterproof effect can be achieved through extrusion of the nut and the O-shaped sealing ring, the waterproof grade is higher, and actual use is facilitated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric bicycle accessories, specifically, a large current 12 core threaded motor connector. BACKGROUND

[0002] The vigorous development of the electric bicycle and E-Scooter industry has accelerated the upgrading of electric vehicles, and the diversification of electric bicycles, among which the motor connector is a key electronic component for connecting the motor of the electric bicycle with other electrical components (such as the controller, battery, etc.), but the prior art has the following deficiencies when in use:

[0003] The existing motor connector has small current carrying capacity when in use, which cannot meet the actual demand, and its waterproofness is general, so that water vapor may enter the internal part of the motor connector after long-term use, affecting the actual use effect of the motor connector.

[0004] Therefore, a large current 12 core threaded motor connector is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problem that the existing motor connector has small current carrying capacity when in use, which cannot meet the actual demand, and its waterproofness is general, so that water vapor may enter the internal part of the motor connector after long-term use, affecting the actual use effect of the motor connector.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] A large current 12 core threaded motor connector is provided to improve the above problems.

[0008] The application is as follows:

[0009] A large current 12 core threaded motor connector, comprising a male connector and a female connector, the male connector is provided with a male positioning piece, three first male terminals and nine second male terminals, the female connector is provided with a female positioning piece, three first female terminals and nine second female terminals, a nut is sleeved on the female positioning piece, a limiting ring is fixedly connected to the nut, an O-shaped sealing ring is fixedly connected to the female positioning piece, the three first male terminals and the three first female terminals are arranged at equal angles in a circle, the three first male terminals are respectively inserted into the three first female terminals, and the nine second male terminals are respectively inserted into the nine second female terminals.

[0010] As a preferred technical scheme of the application, the male connector is provided with a male rubber coating on the outer surface, and the female connector is provided with a female rubber coating on the outer surface.

[0011] As the preferred technical scheme of the present application, the first wire is fixedly connected to one side end face of the male connector, and the second wire is fixedly connected to one side end face of the female connector.

[0012] As the preferred technical scheme of the present application, the nut is threadedly connected with the male positioning member, the O-shaped sealing ring is tightly attached to one side end face of the male positioning member, and one side surface of the limiting baffle ring is attached to the female positioning member.

[0013] As the preferred technical scheme of the present application, the diameters of the three first male terminals and the three first female terminals are both 4.0 mm, and the diameters of the nine second male terminals and the nine second female terminals are both 0.6 mm.

[0014] As the preferred technical scheme of the present application, the three first male terminals and the nine second male terminals are located in the male positioning member, and the three first female terminals and the nine second female terminals are located in the female positioning member.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] In the scheme of the present application:

[0017] 1. One end of the female positioning member is inserted into the male positioning member, so that the three first male terminals are respectively inserted into the three first female terminals, and the nine second male terminals are respectively inserted into the nine second female terminals, thereby improving the current carrying capacity of the motor connector, which can reach up to 45 A, and better meeting the actual use requirements.

[0018] 2. The nut is rotated to make the surface of the positioning member attached to the female positioning member, and the O-shaped sealing ring is extruded, thereby achieving the waterproof effect, higher waterproof level, and facilitating the actual use. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The present application provides a whole structure schematic view of a large-current 12-core threaded motor connector.

[0020] Figure 2 The present application provides a structure schematic view of an O-shaped sealing ring in a large-current 12-core threaded motor connector.

[0021] Figure 3 The present application provides a structure schematic view of a first male terminal and a second male terminal in a large-current 12-core threaded motor connector.

[0022] Figure 4 The present application provides a structure schematic view of a first female terminal and a second female terminal in a large-current 12-core threaded motor connector.

[0023] Figure 5 A large current 12-core threaded motor connector nut and limit ring connection structure schematic diagram is provided for the application.

[0024] Figure 6 A large current 12-core threaded motor connector nut and limit ring connection structure schematic diagram is provided for the application.

[0025] Indicated in the figure:

[0026] 1, male connector; 2, female connector; 3, male positioning member; 4, first male terminal; 5, second male terminal; 6, female positioning member; 7, first female terminal; 8, second female terminal; 9, nut; 10, limit ring; 11, O-ring; 12, male glue; 13, female glue; 14, first wire; 15, second wire; 16, sealing pad; 17, connecting ring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0028] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] It should be noted that the embodiments and features and technical solutions in the embodiments in the present application can be combined with each other without conflict.

[0030] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the utility model, it is necessary to explain that the position or position relation indicated by the terms "upper", "lower" and the like is based on the position or position relation shown in the drawing, or is the position or position relation commonly placed when the utility model product is used, or is the position or position relation commonly understood by the person skilled in the art, and such terms are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.In addition, the terms "first", "second" and the like are only used for differentiation in description and cannot be understood as indicative or suggestive of relative importance.

[0032] Embodiment:

[0033] As shown in Figures 1-6 , a large current 12-core threaded motor connector is provided in the embodiment, which comprises a male connector 1 and a female connector 2, the male connector 1 is provided with a male positioning member 3, three first male terminals 4 and nine second male terminals 5, the female connector 2 is provided with a female positioning member 6, three first female terminals 7 and nine second female terminals 8, a nut 9 is sleeved on the female positioning member 6, a limiting ring 10 is fixedly connected on the nut 9, an O-shaped sealing ring 11 is fixedly connected on the female positioning member 6, the three first male terminals 4 and the three first female terminals 7 are arranged at equal angles in a circle, the three first male terminals 4 are respectively inserted into the three first female terminals 7, and the nine second male terminals 5 are respectively inserted into the nine second female terminals 8, through the cooperation of the three first male terminals 4, the nine second male terminals 5, the three first female terminals 7 and the nine second female terminals 8, the current carrying capacity of the motor connector can be improved, which can reach 45A at most, and the actual demand can be better met, and the practicality is higher.

[0034] In addition, the motor connector has different models such as 9 cores (green), 10 cores (black), 11 cores (blue) and 12 cores (purple), and the structural components of each model are consistent except for the number of cores, related parameters and colors, so this will not be repeated.

[0035] As shown in Figure 1 and Figure 2 , the outer surface of the male connector 1 is provided with a male rubber coating 12, and the outer surface of the female connector 2 is provided with a female rubber coating 13, and the male rubber coating 12 and the female rubber coating 13 can improve the mechanical protection performance of the male connector 1 and the female connector 2.

[0036] As shown in Figure 1 , the first wire 14 is fixedly connected to one side end surface of the male connector 1, and the second wire 15 is fixedly connected to one side end surface of the female connector 2.

[0037] As shown in Figure 1 andFigure 2 As shown, 2. Rotate the nut, make the positioning surface and the female end positioning piece fit, the O-shaped sealing ring is extruded, so as to achieve waterproof effect, higher waterproof level, beneficial to actual use.

[0038] As shown Figure 3 and Figure 4 The diameter of the three first male terminals 4 and the three first female terminals 7 is 4.0mm, and the diameter of the nine second male terminals 5 and the nine second female terminals 8 is 0.6mm. Through the cooperation of the three first male terminals 4, the nine second male terminals 5, the three first female terminals 7 and the nine second female terminals 8, the current carrying capacity of the motor connector can be improved, which can reach 45A at most, and the actual demand can be better met, and the practicality is higher.

[0039] As shown Figure 1 , Figure 3 and Figure 4 The three first male terminals 4 and the nine second male terminals 5 are located in the male end positioning piece 3, and the three first female terminals 7 and the nine second female terminals 8 are located in the female end positioning piece 6.

[0040] As shown Figure 1 , Figure 4 and Figure 6 The outer surface of the male end positioning piece 3 is fixedly provided with a sealing gasket 16, and the nut 9 is fixedly provided with a connecting ring 17. The inner surface of the connecting ring 17 is in contact with the sealing gasket 16. Through the cooperation of the sealing gasket 16 and the O-shaped sealing ring 11, the double waterproof effect can be achieved, the waterproof level is higher, and the actual use is beneficial. At the same time, through the sealing gasket 16, the nut 9 and the connecting ring 17 are not easy to rotate, which ensures the stability of the connection between the nut 9 and the male end positioning piece 3.

[0041] Specifically, in use, one end of the female end positioning piece 6 is inserted into the male end positioning piece 3, the three first male terminals 4 are respectively inserted into the three first female terminals 7, the nine second male terminals 5 are respectively inserted into the nine second female terminals 8, the O-shaped sealing ring 11 is attached to the side end face of the male end positioning piece 3, then the nut 9 is rotated to be screwed with the male end positioning piece 3, and the side surface of the limiting baffle ring 10 is attached to the female end positioning piece 6. At this time, the O-shaped sealing ring 11 is deformed by the extrusion force, the inner side surface of the connecting ring 17 is attached to the outer side surface of the sealing gasket 16, and the double waterproof effect can be achieved through the cooperation of the sealing gasket 16 and the O-shaped sealing ring 11, the waterproof grade is higher, and the actual use is beneficial. At the same time, through the cooperation of the three first male terminals 4, the nine second male terminals 5, the three first female terminals 7 and the nine second female terminals 8, the current carrying capacity of the motor connector can be improved, which can reach 45A at most, and the actual demand can be better met, the practicality is higher, the overall appearance of the motor connector is more beautiful, the foolproofness is strong, and the user experience can be improved.

[0042] The above examples are only used to illustrate the technical solutions described in the utility model and do not limit the utility model. Although the utility model has been described in detail with reference to the above-described embodiments, the utility model is not limited to the above-described specific embodiments, and any modification or equivalent replacement of the utility model; all technical solutions and improvements that do not deviate from the spirit and scope of the utility model are included in the scope of the claims of the utility model.

Claims

1. A high current 12-pin threaded motor connector comprising a male connector (1) and a female connector (2), characterized in that, The male connector (1) is internally provided with a male positioning member (3), three first male terminals (4) and nine second male terminals (5), the female connector (2) is internally provided with a female positioning member (6), three first female terminals (7) and nine second female terminals (8), the female positioning member (6) is externally provided with a nut (9), the nut (9) is fixedly connected with a limiting ring (10), the female positioning member (6) is fixedly connected with an O-shaped sealing ring (11), the three first male terminals (4) and the three first female terminals (7) are arranged at equal angles, the three first male terminals (4) are respectively inserted into the three first female terminals (7), and the nine second male terminals (5) are respectively inserted into the nine second female terminals (8).

2. A high current 12 contact threaded electrical connector as defined in claim 1, wherein, The male connector (1) is externally provided with a male rubber coating (12), and the female connector (2) is externally provided with a female rubber coating (13).

3. A high current 12 contact threaded electrical connector as defined in claim 2 wherein, The male connector (1) is fixedly connected with a first wire (14) on one side, and the female connector (2) is fixedly connected with a second wire (15) on one side.

4. A high current 12 contact threaded electrical connector as defined in Claim 1 wherein, The nut (9) is threadedly connected with the male positioning member (3), the O-shaped sealing ring (11) is tightly attached to one side of the male positioning member (3), and one side of the limiting ring (10) is attached to the female positioning member (6).

5. A high current 12 contact threaded electrical connector as defined in claim 1 wherein, The diameters of the three first male terminals (4) and the three first female terminals (7) are both 4.0 mm, and the diameters of the nine second male terminals (5) and the nine second female terminals (8) are both 0.6 mm.

6. A high current 12 contact threaded electrical connector as defined in claim 1 wherein, The three first male terminals (4) and the nine second male terminals (5) are located in the male positioning member (3), and the three first female terminals (7) and the nine second female terminals (8) are located in the female positioning member (6).

7. A high current 12 contact threaded electrical connector as defined in claim 1 wherein, The O-shaped sealing ring (11) is fixedly arranged on the outer surface of the female positioning member (6), and the nut (9) and the O-shaped sealing ring (11) are extrudedly matched to achieve the waterproof effect.