M12 electrical connector structure

Abstract

The utility model discloses a kind of M12 electric connector structures, including base module, insulating shell, electrical module and main module;The base module includes insulating base and input terminal, and the input terminal is fixed on insulating base;The insulating shell is detachably fixed on insulating base and is formed with insulating base and surrounds configuration and forms a containing cavity, and mounting hole is formed on the insulating shell, and the mounting hole is communicated between containing cavity and outside;The electrical module is set in containing cavity, and the electrical module is electrically connected with input terminal;The main module includes insulating main body, spring piece terminal and multiple output terminals;The product is composed of base module, insulating shell, electrical module and main module, and the insulating shell is detachably fixed on insulating base, when different plug-in interface switching is carried out, only corresponding main module is replaced to carry out modular assembly, and the rest components can be shared, so that development cost can be greatly reduced, and production operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and in particular to an M12 electrical connector structure. Background Technology

[0002] The M12 electrical connector is an industrial electrical connector based on the M12 standard threaded interface design. It is named for its 12mm diameter circular shell and threaded locking structure, and is widely used in industrial automation, machinery, sensor communication, fieldbus systems, and other fields. It is renowned for its high reliability, dust and water resistance, and vibration resistance, making it a core component for power, signal, and data transmission in industrial environments. The M12 electrical connector is a small, robust, standardized, and highly versatile circular connector. Through its unique threaded locking and coding system, it provides reliable power, signal, and data connectivity solutions for industrial automation and IoT devices, making it an indispensable foundational component of Industry 4.0.

[0003] The current M12 electrical connector mainly consists of an insulating body, a PCB board, input terminals, and output terminals. The PCB board, input terminals, and output terminals are all located within the insulating body, and the input terminals and output terminals are electrically connected to the PCB board.

[0004] However, in existing technologies, the insulating body of M12 electrical connectors is typically a one-piece, non-removable structure. Furthermore, due to the diverse mating interfaces of M12 electrical connectors, each with different mating ends, a significant redesign of most components is required for different mating interfaces, substantially increasing development costs. Therefore, it is necessary to improve current M12 electrical connectors. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide an M12 electrical connector structure that can effectively solve the problem that existing M12 electrical connectors require the redesign of most components for different mating interfaces, resulting in a significant increase in development costs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An M12 electrical connector structure includes a base module, an insulating shell, an electrical module, and a main body module;

[0008] The base module includes an insulating base and an input terminal, which is fixed to the insulating base;

[0009] The insulating shell is detachably fixed to the insulating base and forms a receiving cavity with the insulating base. The insulating shell has a mounting hole that connects the receiving cavity to the outside.

[0010] The electrical module is housed within the accommodating cavity and is electrically connected to the input terminal.

[0011] The main module includes an insulating body, spring-loaded terminals, and multiple output terminals. The lower end of the insulating body is fixed in the accommodating cavity, and the upper end of the insulating body extends outward through the mounting hole into the insulating shell. The insulating body has a fixing hole and multiple terminal holes. The spring-loaded terminal is fixed in the fixing hole and has a connecting pin and a spring portion. The connecting pin is electrically connected to the electrical module, and the spring portion is exposed outside the insulating shell. The multiple output terminals are respectively fixed in the multiple terminal holes, and all of the multiple output terminals are electrically connected to the electrical module.

[0012] As a preferred embodiment, the insulating base has an upward-facing recess, and the insulating outer shell covers the opening of the recess to form the aforementioned receiving cavity.

[0013] As a preferred embodiment, the outer peripheral side of the insulating base is provided with a buckle, the lower end of the insulating shell is sleeved on the outer side of the insulating base, and the outer peripheral side of the insulating shell is provided with a buckle hole, the buckle and the buckle hole are engaged to lock and fix it.

[0014] As a preferred embodiment, the input terminal is embedded and fixed together with the insulating base, and the input terminal is welded to the electrical module for conduction.

[0015] As a preferred embodiment, the electrical module includes a PCB board and electronic components, the electronic components being disposed on the PCB board and electrically connected to the PCB board.

[0016] As a preferred embodiment, the PCB board has multiple soldering holes around its perimeter, and the upper ends of the multiple input terminals are respectively inserted into the corresponding soldering holes for soldering.

[0017] As a preferred embodiment, the upper surface of the PCB board has multiple pads, and multiple output terminals are respectively inserted and fixed in multiple terminal holes from bottom to top, with the lower ends of the multiple output terminals respectively abutting against the multiple pads for soldering.

[0018] As a preferred embodiment, a relief groove is provided on the upper outer side of the insulating shell, and the spring piece is located in the relief groove and partially protrudes out of the relief groove.

[0019] As a preferred embodiment, the upper outer contour of the insulating body is cylindrical, and a groove is recessed on the upper outer side of the insulating body, which extends axially in the vertical direction.

[0020] As a preferred embodiment, the upper outer surface of the insulating body has a vertical plane, on which a rib is protruding, and the rib extends axially in the vertical direction.

[0021] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0022] This product consists of a base module, an insulating shell, an electrical module, and a main module. The insulating shell is detachably fixed to the insulating base. When switching between different plug-in interfaces, only the corresponding main module needs to be replaced for modular assembly. The other components can be shared, which can greatly reduce development costs and bring convenience to production operations.

[0023] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is an assembled three-dimensional schematic diagram of the first preferred embodiment of this utility model;

[0025] Figure 2 This is an exploded view of the first preferred embodiment of the present utility model;

[0026] Figure 3 This is a partial assembly diagram of the first preferred embodiment of the present invention;

[0027] Figure 4 This is a cross-sectional view of the first preferred embodiment of the present invention;

[0028] Figure 5 This is an assembled three-dimensional schematic diagram of the second preferred embodiment of the present invention;

[0029] Figure 6 This is a three-dimensional assembly diagram of the third preferred embodiment of the present invention.

[0030] Explanation of reference numerals in the attached diagram:

[0031] 10. Base module 11. Insulating base

[0032] 12. Input terminal 101, recess

[0033] 102. Fastener; 103. Fixing post

[0034] 100, Receiving cavity 20, Insulating outer shell

[0035] 21. Mounting hole; 22. Clip hole

[0036] 23. Leaving slot; 30. Electrical module

[0037] 31. PCB board 301, solder holes

[0038] 302, solder pad 40, main module

[0039] 41. Insulating body 42. Spring contact terminal

[0040] 421. Connecting foot; 422. Spring clip section

[0041] 43. Output terminal 401, mounting hole

[0042] 402, Terminal hole; 403, Groove

[0043] 404. Vertical plane; 405. Protruding rib. Detailed Implementation

[0044] Please refer to Figures 1 to 4 As shown, it displays the specific structure of the first preferred embodiment of the present invention, including a base module 10, an insulating shell 20, an electrical module 30, and a main body module 40.

[0045] The base module 10 includes an insulating base 11 and an input terminal 12, which is fixed to the insulating base 11. In this embodiment, the insulating base 11 has a square outer contour, a recessed part 101 with an upward opening on its surface, and two buckles 102 protruding from its outer peripheral side. The bottom surface of the insulating base 11 extends downwards from a fixing post 103 for external installation and fixation. The input terminal 12 is embedded and fixed to the insulating base 11, and there are multiple input terminals 12 arranged on the front and rear edges of the insulating base 11.

[0046] The insulating outer shell 20 is detachably fixed to the insulating base 11 and together with the insulating base 11 forms a receiving cavity 100. The insulating outer shell 20 has a mounting hole 21 that connects the receiving cavity 100 to the outside. In this embodiment, the outer shell of the insulating outer shell 20 is square. The insulating outer shell 20 covers the opening of the recess 101 to form the aforementioned receiving cavity 100. The lower end of the insulating outer shell 20 is fitted onto the insulating base 11, and a snap-fit ​​hole 22 is provided on the outer peripheral side of the insulating outer shell 20. The snap-fit ​​part 102 engages with the snap-fit ​​hole 22 for secure fastening. Furthermore, a clearance groove 23 is provided on the upper outer side of the insulating outer shell 20.

[0047] The electrical module 30 is disposed in the accommodating cavity 100 and is electrically connected to the input terminal 12. In this embodiment, the input terminal 12 is soldered to the electrical module 30 for electrical connection. Specifically, the electrical module 30 includes a PCB board 31 and electronic components (not shown in the figure). The PCB board 31 is square and adapted to the accommodating cavity 100. Multiple soldering holes 301 are provided around the periphery of the PCB board 31, and the upper ends of the multiple input terminals 12 are respectively inserted into the corresponding soldering holes 301 for soldering. The upper surface of the PCB board 31 has multiple solder pads 302. The electronic components are disposed on the PCB board 31 and are electrically connected to the PCB board 31.

[0048] The main module 40 includes an insulating body 41, a spring-loaded terminal 42, and multiple output terminals 43. The lower end of the insulating body 41 is fixed in the accommodating cavity 100, and the upper end of the insulating body 41 extends outward through the mounting hole 21 into the insulating shell 20. The insulating body 41 has a fixing hole 401 and multiple terminal holes 402. The spring-loaded terminal 42 is fixed in the fixing hole 401 and has a connecting foot 421 and a spring portion 422. The connecting foot 421 is electrically connected to the electrical module 30, and the spring portion 422 is exposed outside the insulating shell 20. The multiple output terminals 43 are respectively disposed and fixed in the multiple terminal holes 402, and all of the multiple output terminals 43 are electrically connected to the electrical module 30. In this embodiment, the upper outer contour of the insulating body 41 is generally cylindrical, and a groove 403 is recessed on the upper outer surface of the insulating body 41. The groove 403 extends axially vertically, and the cross-section of the groove 403 is arc-shaped. The connecting pin 421 is vertically inserted into and soldered to the PCB board 31. The spring piece 422 is located in the relief groove 23 and partially protrudes out of the relief groove 23 to facilitate contact and conduction with the customer chassis. The multiple output terminals 43 are respectively inserted and fixed in the multiple terminal holes 402 from bottom to top, and the lower ends of the multiple output terminals 43 are respectively soldered to the multiple solder pads 302.

[0049] The assembly process of this embodiment is described in detail below:

[0050] First, the input terminal 12 is placed into the injection mold and the insulating base 11 is injection molded, so that the input terminal 12 and the insulating base 11 are embedded and fixed together to form the base module 10. Next, the spring contact terminal 42 and multiple output terminals 43 are assembled onto the insulating body 41 to form the main body module 40. Then, the pre-made electrical module 30 is welded to the spring contact terminal 42 and multiple output terminals 43 of the main body module 40. Then, the electrical module 30 is positioned in the recess 101. Finally, the upper end of the insulating body 41 is passed through the mounting hole 21 and the insulating shell 20 is fastened and fixed to the insulating base 11.

[0051] When in use, this product is installed on the customer's chassis and electrically connected to the customer's motherboard inside the chassis. After installation, the spring part 422 makes elastic contact with the customer's chassis to conduct the signal from the input terminal 12 → PCB board 31 → output terminal 43, realizing the functions of electrical circuit transmission filtering and high voltage isolation.

[0052] Please refer to Figure 5 As shown, it illustrates the specific structure of the second preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned first preferred embodiment, except that:

[0053] In this embodiment, the upper outer surface of the insulating body 41 has only a vertical plane 404 and no groove 403. A rib 405 is protruding on the vertical plane 404. The rib 405 extends axially in the upper and lower directions, and the cross-section of the rib 405 is arc-shaped so as to make a matching and mating connection with the external connector.

[0054] Please refer to Figure 6 As shown, it illustrates the specific structure of the third preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as that of the aforementioned first preferred embodiment, except that:

[0055] In this embodiment, the groove 403 has a square cross-section. Meanwhile, the upper outer side of the insulating body 41 has a vertical plane 404. A rib 405 protrudes from the vertical plane 404. The rib 405 extends vertically and axially. The rib 405 has a square cross-section to facilitate mating and connection with another external connector.

[0056] Thus, the main body module 40 has a variety of structural forms, and one type of main body module 40 can be selected to assemble the M12 electrical connector structure according to the needs of different mating interfaces. The base module 10, the insulating shell 20 and the electrical module 30 can all be shared.

[0057] The key design feature of this utility model is that the product consists of a base module, an insulating shell, an electrical module, and a main module. The insulating shell is detachably fixed to the insulating base. When switching between different plug-in interfaces, only the corresponding main module needs to be replaced for modular assembly. The other components can be shared, which can greatly reduce development costs and bring convenience to production operations.

[0058] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An M12 electrical connector structure, characterized in that: It includes a base module, an insulating shell, an electrical module, and a main body module; The base module includes an insulating base and an input terminal, which is fixed to the insulating base; The insulating shell is detachably fixed to the insulating base and forms a receiving cavity with the insulating base. The insulating shell has a mounting hole that connects the receiving cavity to the outside. The electrical module is housed within the accommodating cavity and is electrically connected to the input terminal. The main module includes an insulating body, spring-loaded terminals, and multiple output terminals. The lower end of the insulating body is fixed in the accommodating cavity, and the upper end of the insulating body extends outward through the mounting hole into the insulating shell. The insulating body has a fixing hole and multiple terminal holes. The spring-loaded terminal is fixed in the fixing hole and has a connecting pin and a spring portion. The connecting pin is electrically connected to the electrical module, and the spring portion is exposed outside the insulating shell. The multiple output terminals are respectively fixed in the multiple terminal holes, and all of the multiple output terminals are electrically connected to the electrical module.

2. The M12 electrical connector structure according to claim 1, characterized in that: The insulating base has an upward-facing recess, and the insulating outer shell covers the opening of the recess to form the aforementioned receiving cavity.

3. The M12 electrical connector structure according to claim 2, characterized in that: The outer peripheral side of the insulating base is provided with a buckle, the lower end of the insulating shell is sleeved on the outside of the insulating base, and the outer peripheral side of the insulating shell is provided with a buckle hole, the buckle and the buckle hole are engaged to fasten and fix.

4. The M12 electrical connector structure according to claim 1, characterized in that: The input terminal is embedded and fixed together with the insulating base, and the input terminal is welded to the electrical module for conduction.

5. The M12 electrical connector structure according to claim 1, characterized in that: The electrical module includes a PCB board and electronic components, with the electronic components mounted on the PCB board and electrically connected to it.

6. The M12 electrical connector structure according to claim 5, characterized in that: The PCB board has multiple soldering holes around its perimeter, and the upper ends of multiple input terminals are respectively inserted into the corresponding soldering holes for soldering.

7. The M12 electrical connector structure according to claim 5, characterized in that: The upper surface of the PCB board has multiple pads, and multiple output terminals are inserted and fixed in multiple terminal holes from bottom to top. The lower ends of the multiple output terminals are soldered against the multiple pads.

8. The M12 electrical connector structure according to claim 1, characterized in that: The upper outer side of the insulating shell is provided with a relief groove, and the spring piece is located in the relief groove and partially protrudes out of the relief groove.

9. The M12 electrical connector structure according to claim 1, characterized in that: The upper outer contour of the insulating body is cylindrical, and a groove is recessed on the upper outer side of the insulating body, which extends axially in the vertical direction.

10. The M12 electrical connector structure according to claim 1 or 9, characterized in that: The upper outer surface of the insulating body has a vertical plane, on which a rib is protruding and extends axially in the vertical direction.

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