Plastic shell with plastic spring piece and connector with the same

Abstract

The utility model discloses a plastic shell with plastic elastic sheet and connector with the plastic shell, through setting up the plastic elastic sheet on the side wall of the insertion slot, the guide groove for guiding the barb of terminal is set up to the inside of plastic elastic sheet, this body is provided with the positioning groove for cooperating with the barb of terminal and is positioned, the positioning groove is located the top of plastic elastic sheet, the limiting groove for cooperating with the limiting sheet of terminal and is limited is set up on the other side wall of insertion slot, the limiting groove is located the below of guide groove, the plastic elastic sheet has the thickening portion, and the outside of thickening portion is inclined plane structure, the setting of guide groove in the plastic shell of this structure can increase the free travel of terminal barb when terminal inserts, effectively reduces the resistance when terminal inserts, makes terminal assembly easier to insert in place, prevents the problem of appearing to return Pin or is power failure, and the convenient and fast assembly is convenient and fast, promotes work efficiency, reduces the bad rate of product, brings the convenience for production, satisfies the existing demand.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a plastic shell with a plastic spring and a connector having the plastic shell. Background Technology

[0002] Electronic connectors, also known as circuit connectors or electrical connectors, are conductor devices that bridge two conductors in a circuit, allowing current or signals to flow from one conductor to the other. An electronic connector is an electrical system that provides a separable interface for connecting two electronic systems. Simply put, a connector is a component used to complete the electrical connection between circuits or electronic devices; it is the bridge between the two. Examples include power plugs / sockets, IC sockets, telephone line plugs, etc.

[0003] Electronic connectors are widely used in various electrical circuits to connect or disconnect current or signals. This connection can be temporary and easily plugged in and out, or it can be a permanent connection between electrical equipment or wires. Electronic connectors are generally divided into two categories: female connectors and male connectors. Female connectors and male connectors are used in sets, and by mating the female connector and male connector, the circuit is made conductive to achieve data transmission.

[0004] Connectors typically consist of a plastic housing and multiple terminal assemblies. Each terminal assembly contains terminals and wires. During assembly, multiple terminal assemblies are directly inserted into slots in the plastic housing, with the barbs of the terminals positioned in locating grooves on the housing. While this structure is relatively simple, when using softer wires during production, the resistance encountered during terminal insertion makes it difficult to insert the terminal assembly correctly, leading to pin retraction or power loss. This process is time-consuming and labor-intensive, resulting in low efficiency, a high defect rate, production inconvenience, poor product quality, and a short product lifespan, failing to meet current requirements. Therefore, it is necessary to research a new technical solution to improve upon these issues. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology by providing a plastic shell with a plastic spring and a connector having the plastic shell. This effectively solves the problems in the existing technology where, when the wires used in the production process are relatively soft, the terminals are difficult to insert properly due to the greater resistance encountered during insertion, resulting in pin ejection or power loss. This leads to time-consuming and laborious operation, low work efficiency, high product defect rate, inconvenience to production, poor product quality, and short service life.

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

[0007] A plastic shell with a plastic spring includes a body; the upper end of the body is provided with multiple insertion slots for accommodating terminals, the insertion slots being adapted to the terminals; the lower end of the body is provided with multiple mounting slots for accommodating wires, the mounting slots being adapted to the wires and communicating with the insertion slots; the inner diameter of the mounting slot is larger than the inner diameter of the insertion slot; a plastic spring is provided on one side wall of the insertion slot; the inner side of the plastic spring is provided with a guide groove for guiding the barbs of the terminals, the guide groove communicating with the insertion slot; the guide groove increases the free travel of the terminal barbs when the terminals are inserted, effectively reducing the resistance during terminal insertion, making the terminals more... Easy to insert and quick to assemble, bringing convenience to production and improving work efficiency; the main body has a positioning groove for positioning with the barb of the terminal. The positioning groove is set above the plastic spring and communicates with the insertion groove. The other side wall of the insertion groove is provided with a limiting groove for positioning with the limiting piece of the terminal. The limiting groove communicates with the insertion groove and is set below the guide groove. The plastic spring has a thickened part. The outer side of the thickened part has a beveled structure, which effectively increases the strength of the plastic spring, increases the pulling and holding force after the terminal is inserted, prevents the plastic spring from deforming under force and causing the pin to come out, and improves the quality of the product.

[0008] As a preferred embodiment, the insertion slot has a square structure.

[0009] As a preferred embodiment, the mounting slot has a square structure.

[0010] As a preferred embodiment, there are four insertion slots, and correspondingly, there are four mounting slots, four guide slots, and four positioning slots, which are respectively connected to the corresponding insertion slots.

[0011] As a preferred embodiment, there are eight limiting grooves, with every two limiting grooves disposed on the side wall opposite to the guide groove in the insertion groove, effectively enhancing the stability of the connection structure between the terminal and the body.

[0012] As a preferred embodiment, the main body is provided with a fixing spring for fixing with external parts, which effectively enhances the stability of the connection structure and makes it convenient and quick to use.

[0013] As a preferred embodiment, the width of the plastic spring is 1.1 mm.

[0014] As a preferred embodiment, the width of the guide groove is 0.55 mm.

[0015] A connector includes a plastic housing with a plastic spring and a plurality of terminal assemblies; the terminal assembly includes a terminal and a wire, the terminal being disposed in an insertion slot, the terminal being provided with a barb and a limiting piece, the barb being disposed in a positioning slot, the limiting piece being disposed in a limiting slot, the wire being disposed in an mounting slot, and one end of the wire being connected to the terminal for conduction.

[0016] As a preferred embodiment, the terminal includes an integrally formed contact portion, a connecting portion, and a wiring portion. The contact portion has a T-shaped piece and two contact springs. The barb and the limiting piece are disposed on the connecting portion. The wiring portion is connected to one end of the wire for conduction.

[0017] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0018] A plastic spring is provided on one side wall of the insertion slot, and a guide groove for guiding the barb of the terminal is provided on the inner side of the plastic spring. The guide groove communicates with the insertion slot. The main body has a positioning groove for engaging and positioning with the barb of the terminal. The positioning groove is located above the plastic spring and communicates with the insertion slot. A limiting groove for engaging and limiting with a limiting piece of the terminal is provided on the other side wall of the insertion slot. The limiting groove communicates with the insertion slot and is located below the guide groove. The plastic spring has a thickened part, and the outer surface of the thickened part has a beveled structure. The guide groove in the plastic shell with this structure can increase the terminal... The free travel of the terminal hook during insertion effectively reduces the resistance during terminal insertion, making it easier to insert the terminal assembly into place and preventing issues such as pin retraction or power loss. Assembly is convenient and quick, improving work efficiency, significantly reducing product defect rates, and bringing convenience to production. Furthermore, by thickening the plastic spring, its strength is effectively increased, thereby increasing the pull-back holding force after terminal insertion and preventing pin retraction due to deformation. The limiting groove effectively enhances the stability of the connection structure between the terminal and the plastic shell, improving product quality, extending product lifespan, and meeting current requirements.

[0019] 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

[0020] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present utility model;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of another preferred embodiment of the present utility model;

[0022] Figure 3 This is an exploded view of a preferred embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of a preferred embodiment of the present invention;

[0024] Figure 5 This is a cross-sectional view of the plastic shell in a preferred embodiment of the present invention;

[0025] Figure 6 This is a cross-sectional view of the plastic shell from another angle in a preferred embodiment of the present invention;

[0026] Figure 7 This is a three-dimensional structural diagram of the terminal assembly in a preferred embodiment of the present invention;

[0027] Figure 8 This is a three-dimensional structural diagram of the terminal assembly from another angle in a preferred embodiment of the present invention.

[0028] Explanation of reference numerals in the attached diagram:

[0029] 10. Main body; 11. Insertion slot

[0030] 12. Mounting slot; 13. Plastic spring.

[0031] 131. Guide groove; 132. Thickened part

[0032] 1321. Inclined structure; 14. Positioning groove

[0033] 15. Limiting groove; 16. Fixing spring.

[0034] 20. Terminal assembly 21. Terminal

[0035] 211. Barb; 212. Limiting plate

[0036] 213, Contact part 2131, T-shaped piece

[0037] 2132, Contact spring; 214, Connecting part

[0038] 215. Wiring section 22. Wire. Detailed Implementation

[0039] Please refer to Figures 1 to 8 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a plastic shell with plastic springs and multiple terminal assemblies 20.

[0040] The plastic shell with plastic springs includes a body 10; the upper end of the body 10 is provided with a plurality of insertion slots 11 for accommodating terminals 21, the insertion slots 11 being adapted to the terminals 21; the lower end of the body 10 is provided with a plurality of mounting slots 12 for accommodating wires 22, the mounting slots 12 being adapted to the wires 22; the mounting slots 12 are connected to the insertion slots 11, and the inner diameter of the mounting slots 12 is larger than the inner diameter of the insertion slots 11; in this embodiment, the insertion slots 11 are square structures; the mounting slots 12 are square structures; there are four insertion slots 11, and correspondingly, there are also four mounting slots 12, each of which is connected to a corresponding insertion slot 11; the body 10 is provided with fixing springs 16 for cooperating and fixing with external parts, effectively enhancing the stability of the connection structure and making it convenient and quick to use.

[0041] A plastic spring sheet 13 is provided on one side wall of the insertion slot 11. A guide groove 131 for guiding the barb 211 of the terminal 21 is provided on the inner side of the plastic spring sheet 13. The guide groove 131 communicates with the insertion slot 11. The guide groove 131 increases the free travel of the terminal barb 211 when the terminal 21 is inserted, effectively reducing the resistance when the terminal 21 is inserted, making it easier to insert the terminal 21 into place, facilitating assembly, bringing convenience to production, and improving work efficiency. The body 10 has a positioning groove 14 for cooperating with and positioning the barb 211 of the terminal 21. The positioning groove 14 is located above the plastic spring sheet 13 and communicates with the insertion slot 11. A limiting groove 15 for cooperating with and limiting the terminal 21's limiting piece 212 is provided on the other side wall of the insertion slot 11. The limiting groove 15 communicates with the insertion slot 11 and the limiting piece 212 of the terminal 21 is used for limiting the terminal 21. The groove 15 is located below the guide groove 131. The plastic spring 13 has a thickened portion 132, the outer surface of which is a beveled structure 1321, which effectively increases the strength of the plastic spring 13, increases the pull-back holding force after the terminal 21 is inserted, prevents the plastic spring 13 from deforming under force and causing pin slippage, and improves product quality. In this embodiment, there are four guide grooves 131 and four positioning grooves 14, which are respectively connected to the corresponding insertion grooves 11. There are eight limiting grooves 15, and every two limiting grooves 15 are set on the side wall of the insertion groove 11 opposite to the guide groove 131, which effectively enhances the stability of the connection structure between the terminal 21 and the body 10. The width of the plastic spring 13 is 1.1 mm; the width of the guide groove 131 is 0.55 mm; and there are four plastic springs 13.

[0042] The terminal assembly 20 includes a terminal 21 and a wire 22. The terminal 21 is disposed in the insertion slot 11 and has a barb 211 and a limiting piece 212. The barb 211 is disposed in the positioning slot 14 and the limiting piece 212 is disposed in the limiting slot 15. The wire 22 is disposed in the mounting slot 12, and one end of the wire 22 is connected to the terminal 21 for conduction. In this embodiment, the terminal 21 includes an integrally formed contact portion 213, a connecting portion 214, and a wiring portion 215. The contact portion 213 has a T-shaped piece 2131 and two contact springs 2132. The barb 211 and the limiting piece 212 are disposed on the connecting portion 214, and the wiring portion 215 is connected to one end of the wire 22 for conduction. There are four terminals 21 and four wires 22, and one end of each of the four wires 22 is connected to the corresponding terminal 21 for conduction. Each terminal 21 has two limiting pieces 212.

[0043] The manufacturing and assembly process of this embodiment is described in detail below:

[0044] First, a plastic shell with plastic springs and multiple terminals 21 are formed, and multiple wires 22 are prepared. Next, one end of each wire 22 is connected to the corresponding terminal 21 to form multiple terminal assemblies 20. Then, the terminal assemblies 20 are installed into the body 10 from bottom to top, so that the terminals 21 are installed into the insertion slots 11. The barbs 211 of the terminals 21 are guided by the guide slots 131 and installed into the positioning slots 14 and are positioned in cooperation with the positioning slots 14. The limiting pieces 212 of the terminals 21 are installed into the limiting slots 15 and are limited in cooperation with the limiting slots 15. The wires 22 are then placed in the mounting slots 12. The assembly is simple, the operation is convenient and quick, and the work efficiency is improved.

[0045] The key design feature of this utility model is:

[0046] A plastic spring is provided on one side wall of the insertion slot, and a guide groove for guiding the barb of the terminal is provided on the inner side of the plastic spring. The guide groove communicates with the insertion slot. The main body has a positioning groove for engaging and positioning with the barb of the terminal. The positioning groove is located above the plastic spring and communicates with the insertion slot. A limiting groove for engaging and limiting with a limiting piece of the terminal is provided on the other side wall of the insertion slot. The limiting groove communicates with the insertion slot and is located below the guide groove. The plastic spring has a thickened part, and the outer surface of the thickened part has a beveled structure. The guide groove in the plastic shell with this structure can increase the terminal... The free travel of the terminal hook during insertion effectively reduces the resistance during terminal insertion, making it easier to insert the terminal assembly into place and preventing issues such as pin retraction or power loss. Assembly is convenient and quick, improving work efficiency, significantly reducing product defect rates, and bringing convenience to production. Furthermore, by thickening the plastic spring, its strength is effectively increased, thereby increasing the pull-back holding force after terminal insertion and preventing pin retraction due to deformation. The limiting groove effectively enhances the stability of the connection structure between the terminal and the plastic shell, improving product quality, extending product lifespan, and meeting current requirements.

[0047] 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. A plastic shell with a plastic spring clip, characterized in that: The device includes a main body; the upper end of the main body is provided with multiple insertion slots for accommodating terminals, the insertion slots being adapted to the terminals; the lower end of the main body is provided with multiple mounting slots for accommodating wires, the mounting slots being adapted to the wires and communicating with the insertion slots; the inner diameter of the mounting slots is larger than the inner diameter of the insertion slots; a plastic spring is provided on one side wall of the insertion slot; the inner side of the plastic spring is provided with a guide groove for guiding the barbs of the terminals, the guide groove communicating with the insertion slots; the main body has a positioning groove for engaging and positioning with the barbs of the terminals, the positioning groove being located above the plastic spring and communicating with the insertion slots; the other side wall of the insertion slot has a limiting groove for engaging and limiting with a limiting piece of the terminals, the limiting groove communicating with the insertion slots and being located below the guide grooves; the plastic spring has a thickened portion, the outer surface of which is a beveled structure.

2. The plastic shell with a plastic spring sheet according to claim 1, characterized in that: The insertion slot has a square structure.

3. The plastic shell with a plastic spring sheet according to claim 1, characterized in that: The mounting slot has a square structure.

4. The plastic shell with a plastic spring sheet according to claim 1, characterized in that: There are four insertion slots, and correspondingly, there are four mounting slots, four guide slots, and four positioning slots, which are respectively connected to the corresponding insertion slots.

5. The plastic shell with a plastic spring sheet according to claim 4, characterized in that: There are eight limiting grooves, and every two limiting grooves are set on the side wall opposite to the guide groove in the insertion groove.

6. The plastic shell with a plastic spring sheet according to claim 1, characterized in that: The main body is provided with a fixing spring for cooperating and fixing with external parts.

7. The plastic shell with a plastic spring sheet according to claim 1, characterized in that: The width of the plastic spring is 1.1 mm.

8. The plastic shell with a plastic spring sheet according to claim 1, characterized in that: The width of the guide groove is 0.55 mm.

9. A connector, characterized in that: It includes a plastic shell with a plastic spring as described in any one of claims 1-8 and a plurality of terminal assemblies; the terminal assembly includes a terminal and a wire, the terminal is disposed in an insertion slot, the terminal is provided with a barb and a limiting piece, the barb is disposed in a positioning slot, the limiting piece is disposed in a limiting slot, the wire is disposed in an installation slot, and one end of the wire is connected to the terminal for conduction.

10. The connector according to claim 9, characterized in that: The terminal includes an integrally formed contact portion, a connecting portion, and a wiring portion. The contact portion has a T-shaped piece and two contact springs. The barb and the limiting piece are disposed on the connecting portion. The wiring portion is connected to one end of the wire for conduction.

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