Electric connector

Abstract

The utility model provides an electric connector, which comprises an insulating body, a plurality of plug terminals and a plurality of crimping terminals, the plug terminals and the crimping terminals are accommodated in the insulating body, and the insulating body is provided with a long and narrow slot and a plurality of terminal slots positioned on one side of the long and narrow slot. The plugging terminal is provided with a clamping arm fixed in the terminal groove and an elastic plugging arm extending into the long and narrow slot; the crimping terminal is provided with an elastic lap joint arm located in the terminal groove and an elastic crimping arm extending out of the terminal groove, and the elastic lap joint arm and the clamping arm are in lap joint fit with each other in the terminal groove. According to the utility model, the terminal structure and the structure of the insulation body are optimized, the crimping terminals and the circuit board are in elastic crimping connection, the crimping terminals and the plugging terminals are in elastic lap joint, and the wiring board and the circuit board are connected through an elastic contact mode of the double elastic sheets, so that welding operation is avoided, the assembly is more convenient, and the production efficiency is improved. And the later disassembly and maintenance operation is particularly facilitated.

Description

Technical Field

[0001] The utility model relates to the field of electrical connection, in particular to an electrical connector. Background Art

[0002] With the development trend of small and light consumer electronic products such as notebooks, tablets, and mobile phones, the design and manufacturing process of their components are becoming increasingly demanding. As the products become thinner and lighter, the internal space becomes very narrow, which requires that the internal layout of the product must be dense, and the volume of each electronic component is getting smaller and smaller, thinner and lighter, and the reliability requirements for the process technology and product connection are getting higher and higher. Common electrical connectors are usually installed on circuit boards and establish electrical connections with the circuit boards by welding. This is the most common connection method at present. However, the welding process generally requires high energy consumption and brings some inconvenience to the later disassembly and maintenance operations. At the same time, for assembly manufacturers, welding equipment must be available to complete the assembly of electrical connectors and circuit boards. The assembly process is also relatively complicated and cannot be assembled quickly. Utility Model Content

[0003] The technical problem solved by the utility model is to provide an electrical connector to improve the problems of complex assembly and low efficiency in the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: an electrical connector, comprising an insulating body, a plurality of plug-in terminals and a plurality of crimping terminals accommodated in the insulating body, the insulating body being provided with a narrow and long slot and a plurality of terminal slots located on one side of the narrow and long slot, the plug-in terminal being provided with a clamping arm fixed in the terminal slot and an elastic plug-in arm extending into the narrow and long slot; the crimping terminal being provided with an elastic lap arm located in the terminal slot and an elastic crimping arm extending outside the terminal slot, the elastic lap arm and the clamping arm being overlapped and matched with each other in the terminal slot.

[0005] The insulating body is provided with a pair of side walls, a top wall and a supporting wall. The elastic crimping arm is exposed between the pair of side walls to be crimped with a circuit board. The supporting wall is supported below the crimping terminal and is provided with a plurality of slots to hold the crimping terminal.

[0006] A positioning protrusion and a positioning groove that cooperate with the circuit board are formed on the top of the side wall. The positioning protrusion is provided with a guiding slope to pass through a preset positioning hole on the circuit board. The positioning groove is arranged adjacent to the positioning protrusion to accommodate the edge position of the circuit board.

[0007] The narrow slot passes through the top wall of the insulating body upwards to allow a wire row to be inserted. The elastic plug arm of the plug terminal extends upward from the top of the holding arm and protrudes into the narrow slot to be crimped and matched with the wire row.

[0008] The crimping terminal is also provided with an L-shaped fixing arm, which is integrally connected between the elastic lap arm and the elastic crimping arm, and the fixing arm is provided with a horizontal section and a vertical section, the horizontal section is clamped in the slot of the support wall, and the vertical section is accommodated in the terminal slot.

[0009] The plug-in terminal is also provided with a limiting portion located at the end of the elastic plug-in arm, the limiting portion is located outside the narrow and long slot and is accommodated in the terminal groove, and a blocking wall is provided on the insulating body, and the limiting portion and the narrow and long slot are respectively located on both sides of the blocking wall.

[0010] The clamping arm is in the form of a sheet, and its two side edges are clamped and fixed with the insulating body. The insulating body is provided with a bottom wall, and an opening penetrating the terminal groove and the narrow and long slot is formed on the bottom wall for the plug-in terminal to be inserted into the insulating body from bottom to top.

[0011] The support wall is located at one side of the top wall and is integrally connected to the top wall. The support wall is lower than the top wall in a vertical direction. The terminal groove is formed at one side of the support wall.

[0012] The elastic crimping arm extends obliquely upward from the horizontal section of the fixed arm and is higher than the bottom surface of the positioning groove but lower than the top surface of the positioning protrusion.

[0013] Compared with the prior art, the utility model optimizes the terminal structure and the structure of the insulating body, utilizes crimping terminals to achieve elastic crimping connection with the circuit board, and elastically overlaps with the plug-in terminals, and connects with the wire row and the circuit board through the elastic contact method of double spring sheets, eliminating the welding operation, making assembly more convenient, especially convenient for later disassembly and maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the assembly of the electrical connector, the circuit board and the wire array of the utility model.

[0015] Figure 2 This is a bottom view of the electrical connector of the present invention.

[0016] Figure 3 This is an exploded view of the electrical connector of the present invention.

[0017] Figure 4 It is a cross-sectional view of the electrical connector of the present invention.

[0018] Figure 5 This is a view of the internal connection between the electrical connector, the circuit board and the wiring board of the utility model. DETAILED DESCRIPTION

[0019] See also Figures 1 to 5 As shown, the utility model provides an electrical connector, including an insulating body 10, a plurality of plug-in terminals 20 and a plurality of crimping terminals 30 accommodated in the insulating body 10, the insulating body 10 is used to hold the plug-in terminals 20 and the crimping terminals 30 and fixedly combined with a circuit board A, the plug-in terminals 20 and the crimping terminals 30 are respectively used to connect a line bar B and the circuit board A, so as to electrically connect the line bar B with the circuit board A. The following is a detailed description of each component.

[0020] like Figure 2 , Figure 3 As shown, the insulating body 10 is made by an insulating injection molding process, and is provided with a pair of side walls 11, an end wall 12, a top wall 13 and a bottom wall 14, wherein the pair of side walls 11 are parallel to each other and a receiving space for accommodating the crimping terminal 30 is formed therebetween, a positioning groove 110 and a positioning protrusion 111 located on one side of the positioning groove 110 are formed at the top of the side wall 11, the positioning groove 110 and the positioning protrusion 111 are arranged adjacent to each other, the positioning groove 110 is used to accommodate the circuit board A, the positioning protrusion 111 is used to clamp into the circuit board A, thereby realizing clamping and positioning with the circuit board A, preferably, the positioning protrusion 111 is provided with an inclined guide slope 112, so that it is easier to clamp into the preset positioning hole A1 on the circuit board A. The top wall 13 is between the pair of side walls 11, and a narrow slot 15 and a plurality of terminal slots 16 are formed on the top wall 13. The slot 15 and the terminal slot 16 penetrate the top wall 13 and the bottom wall 14 of the insulating body 10 in the up-down direction. The slot 15 is used for inserting the wire row B, and the terminal slot 16 is used for accommodating the plug-in terminal 20. Preferably, the terminal slot 16 and the slot 15 penetrate each other, and the plurality of terminal slots 16 are arranged and distributed along the length direction of the slot 15. The bottom wall 14 is formed with an opening 140 set in the direction of Figure 4 As shown, the plug-in terminal 20 is inserted into the terminal groove 16 from bottom to top. Preferably, the insulating body 10 is further provided with a support wall 17, the support wall 17 is located between the pair of side walls 11 and on one side of the top wall 13, preferably, the support wall 17 is lower than the top wall 13 in the vertical direction, so that the support wall 17 and the top wall 13 are stepped, and the support wall 17 is also lower than the side wall 11, preferably, a plurality of card slots 171 are formed on the support wall 17, which are used to clamp and fix the crimping terminal 30, as shown in FIG. Figure 4As shown, the support wall 17 can be used to support and fix the crimping terminal 30 .

[0021] like Figure 3 and Figure 4 As shown, the plug-in terminal 20 is inserted into the terminal groove 16 through the opening 140 on the bottom wall 14, and the plug-in terminal 20 is provided with a clamping arm 21, an elastic plug-in arm 22 extending upward from the clamping arm 21, and a limiting portion 23 located at the end of the elastic plug-in arm 22. The clamping arm 21 is sheet-shaped, and its two sides are clamped on the insulating body 10 to achieve interference fixation. The elastic plug-in arm 22 is integrally connected with the clamping arm 21, and the elastic plug-in arm 22 protrudes into the narrow and long slot 15 to achieve electrical connection with the line row B; the limiting portion 23 is located outside the narrow and long slot 15 and is accommodated in the terminal groove 16. A blocking wall 18 is provided on the insulating body 10 for blocking the limiting portion 23 from entering the narrow and long slot 15. The limiting portion 23 and the narrow and long slot 15 are respectively located on both sides of the blocking wall 18.

[0022] like Figure 3 and Figure 4 As shown, the crimping terminal 30 is roughly L-shaped, and is provided with an elastic lap arm 31, an elastic crimping arm 32 and an L-shaped fixed arm 33 integrally connected between the elastic lap arm 31 and the elastic crimping arm 32. The elastic lap arm 31 is located in the terminal groove 16 and extends toward the plug-in terminal 20, thereby making overlapping contact with the plug-in terminal 20. Preferably, the elastic lap arm 31 is overlapped and connected with the holding arm 21 of the plug-in terminal 20; the elastic crimping arm 32 is arranged between the pair of side walls 11, and the elastic lap arm 32 is arranged between the pair of side walls 11, and the elastic lap arm 31 ... The crimping arm 32 extends upward and obliquely from one end of the fixed arm 33, and is used for crimping contact with the surface of the circuit board A. Preferably, the elastic crimping arm 32 protrudes upward beyond the bottom surface of the positioning groove 110, but is lower than the top surface of the positioning protrusion 111 in the vertical direction; the fixed arm 33 is arranged on the support wall 17 of the insulating body 10, and the fixed arm 33 is provided with a horizontal section and a vertical section, the horizontal section is clamped in the clamping groove 171 of the support wall 17, and the vertical section is located in the terminal groove 16.

[0023] The plug-in terminal 20 is arranged in the terminal groove 16 for plugging and connecting with the wire row B. The crimping terminal 30 is fixed on the support wall 17 for crimping and connecting with the circuit board A. The plug-in terminal 20 and the crimping terminal 30 are overlapped and connected with each other through the clamping arm 21 and the elastic overlap arm 31, thereby realizing the electrical connection between the wire row B and the circuit board A. It is worth mentioning that the positioning hole A1 preset on the circuit board A will be clamped on the positioning protrusion 111 of the insulating body 10 to realize mutual position positioning, and the edge portion of the circuit board A will be accommodated in the positioning groove 110.

[0024] To sum up, the utility model optimizes the terminal structure and the structure of the insulating body 10, utilizes the crimping terminal 30 to realize elastic crimping connection with the circuit board A, and elastically overlaps with the plug-in terminal 20, and eliminates the welding operation through the contact method of double spring sheets, making assembly more convenient, especially for later disassembly and maintenance operations.

[0025] The above is only the best embodiment of the utility model and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the method disclosed above without departing from the scope of the technical solution of the utility model, which all fall within the scope of protection of the claims.

Claims

1. An electrical connector, comprising an insulating body, a plurality of plug-in terminals and a plurality of crimping terminals received in the insulating body, wherein the insulating body is provided with a narrow slot and a plurality of terminal slots located on one side of the narrow slot, characterized in that: The plug-in terminal is provided with a holding arm fixed in the terminal slot and an elastic plug-in arm extending into the narrow and long slot; the crimping terminal is provided with an elastic lap arm located in the terminal slot and an elastic crimping arm extending out of the terminal slot, and the elastic lap arm and the holding arm overlap and cooperate with each other in the terminal slot.

2. The electrical connector according to claim 1, wherein: The insulating body is provided with a pair of side walls, a top wall and a supporting wall. The elastic crimping arm is exposed between the pair of side walls to be crimped with a circuit board. The supporting wall is supported below the crimping terminal and is provided with a plurality of slots to hold the crimping terminal.

3. The electrical connector according to claim 2, wherein: A positioning protrusion and a positioning groove that cooperate with the circuit board are formed on the top of the side wall. The positioning protrusion is provided with a guiding slope to pass through a preset positioning hole on the circuit board. The positioning groove is arranged adjacent to the positioning protrusion to accommodate the edge position of the circuit board.

4. The electrical connector according to claim 3, wherein: The narrow slot passes through the top wall of the insulating body upwards to allow a wire row to be inserted. The elastic plug arm of the plug terminal extends upward from the top of the holding arm and protrudes into the narrow slot to be crimped and matched with the wire row.

5. The electrical connector according to claim 4, wherein: The crimping terminal is also provided with an L-shaped fixing arm, which is integrally connected between the elastic lap arm and the elastic crimping arm, and the fixing arm is provided with a horizontal section and a vertical section, the horizontal section is clamped in the slot of the support wall, and the vertical section is accommodated in the terminal slot.

6. The electrical connector according to claim 5, wherein: The plug-in terminal is also provided with a limiting portion located at the end of the elastic plug-in arm, the limiting portion is located outside the narrow and long slot and is accommodated in the terminal groove, and a blocking wall is provided on the insulating body, and the limiting portion and the narrow and long slot are respectively located on both sides of the blocking wall.

7. The electrical connector according to claim 6, wherein: The clamping arm is in the form of a sheet, and its two side edges are clamped and fixed with the insulating body. The insulating body is provided with a bottom wall, and an opening penetrating the terminal groove and the narrow and long slot is formed on the bottom wall for the plug-in terminal to be inserted into the insulating body from bottom to top.

8. The electrical connector according to claim 7, wherein: The support wall is located at one side of the top wall and is integrally connected to the top wall. The support wall is lower than the top wall in a vertical direction. The terminal groove is formed at one side of the support wall.

9. The electrical connector according to claim 8, wherein: The elastic crimping arm extends obliquely upward from the horizontal section of the fixed arm and is higher than the bottom surface of the positioning groove but lower than the top surface of the positioning protrusion.

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