Multi-core welding cup pin plug

Abstract

The utility model discloses a multi-core welding cup pin plug, which comprises a plug shell, a mounting plate is arranged in the plug shell, a plurality of contact pins are embedded in the mounting plate, and two ends of each contact pin penetrate through the mounting plate; a plurality of annular grooves are formed in the outer side wall of the contact pin, and the contact pin is stably connected with the mounting plate through the annular grooves; and a first rubber ring is arranged on the outer side wall of the mounting plate and is in compression connection with the inner side wall of the plug shell. By arranging the mounting plate in the plug shell and arranging the plurality of contact pins in the mounting plate, a multi-core cable can be changed into a plugging connection mode, the problem of unstable connection caused by shaking of core wires is avoided, and shaking between the mounting plate and the plug shell can be effectively prevented in cooperation with the first rubber ring.

Description

Technical Field

[0001] The utility model relates to the field of multi-pin connectors, in particular to a plug connector with multi-core solder cup feet. Background Art

[0002] Plug connector is a kind of communication equipment connector widely used in the electrical field. However, with the development of science and technology, the traditional welding wire type multi-core connector has many problems such as low assembly efficiency, poor waterproof and oil-proof effects, large shaking of needles and mounting holes, and poor contact. The existing multi-core connector can no longer meet the use requirements of modern industry. Therefore, how to improve the connection stability of multi-core connectors is a problem that needs to be solved in this field. Utility Model Content

[0003] In view of the above-mentioned problems, the purpose of the utility model is to provide a multi-core solder cup pin plug to achieve the purpose of improving the connection stability.

[0004] To achieve the above object, the utility model provides a multi-core solder cup pin plug, comprising a plug shell, a mounting plate is arranged in the plug shell, a plurality of pins are embedded in the mounting plate, and both ends of the pins pass through the mounting plate;

[0005] The outer side wall of the plug pin is provided with a plurality of annular grooves, and the plug pin is stably connected to the mounting plate through the annular grooves;

[0006] The outer side wall of the mounting plate is provided with a first rubber ring, and the first rubber ring is tightly connected to the inner side wall of the plug housing.

[0007] Furthermore, a first installation groove is provided on the inner side of the plug shell, and an annular contact finger spring is provided in the first installation groove, and the contact finger spring is closely connected to the plug shell.

[0008] Furthermore, the plug housing includes a connecting portion and an inserting portion, a plurality of locking bolts are arranged on the inner side of the connecting portion, and the mounting plate is located on the inserting portion.

[0009] Furthermore, a second installation groove is provided on the inner side of the connecting portion, a second rubber ring is embedded in the second installation groove, and the second rubber ring is used for fitting with the external connecting head.

[0010] Furthermore, the inner side wall of the plug-in portion is provided with at least two guide grooves for stabilizing the mounting plate.

[0011] Furthermore, the outer side wall of the mounting plate is provided with guide keys corresponding to the number of the guide grooves, and the guide keys are engaged and connected with the guide grooves.

[0012] Furthermore, a plurality of limit posts for improving the accuracy of plugging are protruding from the end surface of the mounting plate close to the plug-in portion.

[0013] Furthermore, the outer side wall of the plug housing is provided with straight knurling for anti-slipping.

[0014] Furthermore, the plug housing is made of aluminum alloy.

[0015] Furthermore, the mounting plate is made of nylon mixed with glass fiber.

[0016] The beneficial effects of the utility model are:

[0017] By setting a mounting plate inside the plug shell and arranging multiple pins inside the mounting plate, the multi-core cable can be changed to a plug-in connection method, avoiding the problem of unstable connection caused by shaking of the core wires. At the same time, in conjunction with the first rubber ring, the shaking between the mounting plate and the plug shell can be effectively prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings illustrate exemplary embodiments of the present invention and are used to explain the principles of the present invention together with the description. These drawings are included to provide a further understanding of the present invention, and the drawings are included in and constitute a part of this specification.

[0019] Figure 1 This is a schematic diagram of the overall structure of the plug in this embodiment;

[0020] Figure 2 This is a schematic cross-sectional view of the plug of this embodiment;

[0021] Figure 3 This is a schematic diagram of the locking bolt structure of this embodiment;

[0022] Figure 4 This is a schematic cross-sectional view of the plug housing structure of this embodiment;

[0023] Figure 5 This is a schematic diagram of the overall structure of the mounting plate of this embodiment;

[0024] Figure 6 This is a schematic diagram of the guide groove structure of this embodiment;

[0025] Figure 7 FIG. 2 is a schematic diagram of the structure of the finger contact spring of this embodiment.

[0026] Reference numerals:

[0027] 1. Plug shell; 2. Mounting plate; 3. Pin; 4. Ring groove; 5. First rubber ring; 6. First mounting groove; 7. Finger contact spring; 8. Connecting part; 9. Plug-in part; 10. Locking bolt; 11. Second mounting groove; 12. Second rubber ring; 13. Guide groove; 14. Guide key; 15. Limiting column; 16. Straight knurling. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant contents, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] refer to Figure 1 and Figure 2 A multi-core solder cup-pin plug includes a plug shell 1. The plug shell is made of aluminum alloy, which can effectively ensure the durability of the plug. The two ends of the plug shell 1 are a connecting part 8 and a plug-in part 9. The connecting part 8 is used to connect to the connector of an external cable, and the plug-in part 9 is used to plug into an external plug-in connector to connect the external cable to the device. The outer wall of the plug shell 1 is provided with a straight knurling 16 for anti-slip. Among them, the inner diameter of the plug-in part 9 is smaller than the inner diameter of the connecting part 8. A mounting plate 2 is provided at the position of the plug-in part 9 in the plug shell 1. The mounting plate 2 is a columnar structure, and the material of the mounting plate 2 is a nylon mixed with glass fiber material, specifically a mixture of nylon and 15% glass fiber, which can effectively improve the insulation and flame retardancy of the plug. The mounting plate 2 is embedded with a plurality of pins 3. In this embodiment, a ten-core pin 3 is taken as an example. Both ends of the pin 3 penetrate the mounting plate 2. The plug-in end of the pin 3 is a solder cup foot structure and is flush with the end face of the mounting plate 2. The other end of the pin 3 has a stopper with an outer diameter greater than the outer diameter of the main body of the pin 3 to ensure that the pin 3 will not fall off the mounting plate 2. The end face of the mounting plate 2 near the plug-in portion 9 is protruding with a plurality of limit columns 15 for improving the plug-in accuracy, which can prevent the pin 3 from being damaged due to incorrect installation. In order to further improve the stability of the connection between the pin 3 and the mounting plate 2, a plurality of annular grooves 4 are formed on the outer wall of the pin 3. The mounting plate 2 is stably connected by inserting the annular grooves 4 into the pin 3.

[0031] refer to Figure 2 and Figure 7The outer wall of the mounting plate 2 is provided with a groove, and a first rubber ring 5 is embedded in the groove. The first rubber ring 5 is pressed and connected with the inner wall of the plug shell 1. After the mounting plate 2 is connected with the plug shell 1, the shaking of the mounting plate 2 can be effectively prevented. A first mounting groove 6 is provided on the inner side of the plug shell 1. An annular finger spring 7 is provided in the first mounting groove 6. The finger spring 7 is fitted and connected with the mounting plate 2. In order to further improve the good contact between the finger spring 7 and the plug shell 1, the finger spring 7 is made of beryllium copper, which has good elasticity and shielding properties, and can also ensure the stability of signal transmission.

[0032] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A plurality of locking bolts 10 are arranged on the inner side of the connection part 8, and the ends of the locking bolts 10 pass through the outer side wall of the plug shell 1 and are flush with the outer side wall of the plug shell 1. When the connector of the external cable is inserted into the connection part 8, the connector can be effectively prevented from rotating to ensure the connection accuracy between the wire core and the pin 3. A second installation groove 11 is arranged on the inner side of the connection part 8, and a second rubber ring 12 is embedded in the second installation groove 11. The second rubber ring 12 is arranged non-contacting with the mounting plate 2. When the connector of the external cable is installed in place, the second rubber ring 12 can be stably squeezed and connected with it, thereby preventing the connector from being scratched, and can also effectively prevent external moisture and dust from entering the interior of the plug shell 1.

[0033] refer to Figure 1 , Figure 5 and Figure 6 The inner wall of the plug-in portion 9 is provided with at least two guide grooves 13 for stabilizing the mounting plate 2. In this embodiment, there are two guide grooves 13, and the outer wall of the mounting plate 2 is provided with guide keys 14 corresponding to the number of the guide grooves 13. When the mounting plate 2 is installed into the plug-in portion 9, the position of the mounting plate 2 is adjusted so that the guide keys 14 are engaged with the guide grooves 13, which can maintain the stability of the connection between the mounting plate 2 and the plug housing 1 under various working conditions.

[0034] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above utility model, and these changes or modifications are still within the scope of the present utility model.

Claims

1. A multi-core solder cup pin plug, characterized in that: It comprises a plug shell, a mounting plate is arranged in the plug shell, a plurality of pins are embedded in the mounting plate, and two ends of the pins pass through the mounting plate; The outer side wall of the plug pin is provided with a plurality of annular grooves, and the plug pin is stably connected to the mounting plate through the annular grooves; The outer side wall of the mounting plate is provided with a first rubber ring, and the first rubber ring is tightly connected to the inner side wall of the plug housing.

2. The multi-core solder cup pin plug according to claim 1, characterized in that: A first installation groove is arranged on the inner side of the plug shell, and an annular contact finger spring is arranged in the first installation groove. The contact finger spring is closely connected to the plug shell.

3. The multi-core solder cup pin plug according to claim 1, characterized in that: The plug housing comprises a connecting portion and an inserting portion, a plurality of locking bolts are arranged on the inner side of the connecting portion, and the mounting plate is located on the inserting portion.

4. The multi-core solder cup pin plug according to claim 3, characterized in that: A second installation groove is arranged on the inner side of the connecting portion, a second rubber ring is embedded in the second installation groove, and the second rubber ring is used for fitting with the external connecting head.

5. The multi-core solder cup pin plug according to claim 3, characterized in that: The inner side wall of the plug-in portion is provided with at least two guide grooves for stabilizing the mounting plate.

6. The multi-core solder cup pin plug according to claim 5, characterized in that: The outer side wall of the mounting plate is provided with guide keys corresponding to the number of the guide grooves, and the guide keys are engaged and connected with the guide grooves.

7. The multi-core solder cup pin plug according to claim 3, characterized in that: The end surface of the mounting plate close to the plug-in portion is protrudingly provided with a plurality of limiting columns for improving the plug-in accuracy.

8. The multi-core solder cup pin plug according to claim 1, characterized in that: The outer side wall of the plug housing is provided with straight knurling for anti-slipping.

9. The multi-core solder cup pin plug according to claim 2, characterized in that: The plug shell is made of aluminum alloy.

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