Electric connector

Abstract

The invention relates to an electric connector, which comprises a shell, a plurality of grounding terminals, a grounding end connecting part, a plurality of electric terminals and an electric end connecting part, the shell is provided with an accommodating space; the plurality of grounding terminals and the plurality of electrical terminals are arranged in the accommodating space; the grounding end connecting part is connected with the plurality of grounding terminals and is bent and extended to form a first extension part; the electrical end connecting part is connected with a plurality of electrical terminals and extends to form a second extension part; one of the first extending part and the second extending part is of a bent step plate-shaped structure.

Description

Technical Field

[0001] The present invention relates to an electrical connector, and more particularly to an electrical connector having a bent extension portion at the end of a terminal to promote heat dissipation. Background Art

[0002] Electrical connectors are widely used in electronic devices in today's society as interfaces for power and signal transmission. However, with the development of technology, in order to cope with different types, models, and brands of electronic devices, electrical connectors of various specifications and standards have flourished. For example, the most commonly used mainstream connection interface is the Universal Serial Bus (USB) connector set. Users can plug peripheral devices with USB male plugs, such as mice, external hard drives, mobile power supplies, etc., into electronic devices with USB female sockets, thereby achieving electrical connection between the peripheral devices and the pad device, and then transmitting power and signals, so that the peripheral devices can produce various different effects.

[0003] With the increase in transmission volume, transmission rate and performance requirements, USB has launched a high-speed TYPE-C specification electrical connector set. Its appearance size is smaller than that of the traditional USB interface, but it can support higher power charging and power supply capabilities, and has a faster transmission speed. In addition, it can support front and back plugging, so that users no longer need to distinguish the front and back, and it is more suitable for modern electronic devices that pursue lightness and thinness.

[0004] See also Figure 1A and Figure 1B . Figure 1A It is a schematic diagram of an existing male end electrical connector.

[0005] Figure 1B for Figure 1A The structure diagram of the ground terminal group and the electrical terminal group of the existing male end electrical connector is shown in FIG. Figure 1A As shown, the male electrical connector 1 has a housing 10, a ground terminal set 11, and an electrical terminal set 12. The housing 10 has a receiving space 100. The ground terminal set 11 and the electrical terminal set 12 are disposed in the receiving space 100. Figure 1BIt can be seen that the ground terminal set 11 has a free end 11a and a terminal 11b. The free end 11a is used to connect to the corresponding connection terminal (not shown), and the terminal 11b is the other end corresponding to the free end 11a. In the prior art, the terminal 11b usually has an extension portion 11c, and this extension portion 11c is usually used for welding and jointing, so its area is usually slightly smaller. Similarly, the electrical terminal set 12 also has a free end 12a and a terminal 12b, and its terminal 12b also has an extension portion 12c, and the extension portion 12c is also only used for welding and jointing, so its area is also relatively small. Therefore, the ground terminal set 11 and the electrical terminal set 12 of the existing male electrical connector 1 cannot effectively utilize the space at their terminals 11b and 12b, and due to the small area of ​​the extension portions 11c and 12c, their heat dissipation area is limited, and the temperature rise cannot be effectively reduced during the charging process, which makes it difficult to increase the rated current value.

[0006] Therefore, how to develop an electrical connector that can improve the problems encountered in the above-mentioned prior art is indeed one of the important issues. Summary of the invention

[0007] One purpose of the present invention is to provide an electrical connector, in particular a USB TYPE-C electrical connector for charging, which includes a shell, multiple grounding terminals, multiple electrical terminals, a grounding terminal connecting portion and an electrical terminal connecting portion, wherein the grounding terminal connecting portion is connected to the multiple grounding terminals and is bent to extend a first extension portion, and the electrical terminal connecting portion is connected to the multiple electrical terminals and is extended to extend a second extension portion, wherein at least one of the first extension portion and the second extension portion is a plate-like structure with a bent step, and by disposing the first extension portion and the second extension portion of the plate-like structure with an enlarged area and a bent step, the heat conduction area is expanded, that is, the heat dissipation area is increased, thereby reducing the temperature rise during charging, improving the current tolerance, and thus improving the charging current value and charging efficiency.

[0008] Another object of the present invention is to provide an electrical connector, in particular a USB TYPE-C electrical connector for charging, which includes a shell, multiple ground terminals, multiple electrical terminals, a ground terminal connecting portion, and an electrical terminal connecting portion, wherein the ground terminal connecting portion is connected to the multiple ground terminals and is bent to extend a first extension portion, and the electrical terminal connecting portion is connected to the multiple electrical terminals and extends a second extension portion, and at least one of the first extension portion and the second extension portion is a plate-like structure with a bent step, thereby effectively utilizing the idle space inside the electrical connector.

[0009] According to the conception of the present invention, the present invention provides an electrical connector, comprising: a housing, a plurality of grounding terminals, a grounding terminal connection portion, a plurality of electrical terminals, and an electrical terminal connection portion. The housing has a housing space. A plurality of grounding terminals and a plurality of electrical terminals are arranged in the housing space. The grounding terminal connection portion is connected to a plurality of grounding terminals and is bent to extend a first extension portion. The electrical terminal connection portion is connected to a plurality of electrical terminals and is extended to extend a second extension portion. One of the first extension portion and the second extension portion is a plate-like structure with a bent step.

[0010] According to the conception of the present invention, each ground terminal and each electrical terminal has a free end and an end, the ground terminal connection portion is connected to the ends of multiple ground terminals, and the electrical terminal connection portion is correspondingly connected to the ends of multiple electrical terminals.

[0011] According to the conception of the present case, the width of the plate-like structure of the bent step is greater than 1 / 2 of the width of the shell.

[0012] According to the conception of the present invention, the first extending portion has a first vertical projection, the second extending portion has a second vertical projection, the first vertical projection and the second vertical projection partially overlap, and an overlapping projection length is defined.

[0013] According to the conception of the present case, the overlapping projection length is between 1 / 4 and 2 / 3 of the width of the shell.

[0014] According to the conception of the present invention, there is a distance between at least one of the first extension portion and the second extension portion and the top surface of the shell.

[0015] According to the conception of the present invention, there is a height difference between the first extending portion and the second extending portion.

[0016] According to the conception of the present invention, one of the first extension portion and the second extension portion is a plate-like structure with a bent step, and the other second extension portion or the first extension portion has a first plate component and a second plate component.

[0017] According to the conception of the present invention, one of the first extension portion and the second extension portion is a plate-like structure with a bent step and has a third plate component.

[0018] According to the conception of the present invention, one of the first extension portion and the second extension portion is an L-shaped plate structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1A is a schematic diagram of an existing male-end electrical connector;

[0020] Figure 1B for Figure 1A A schematic structural diagram of a ground terminal set and an electrical terminal set of a conventional male electrical connector is shown;

[0021] Figure 2A It is a schematic diagram of the assembly structure of the ground terminal and the electrical terminal of the electrical connector of the first preferred embodiment of the present case;

[0022] Figure 2B for Figure 2A A schematic diagram of the exploded structure of the ground terminal and the electrical terminal of the electrical connector shown;

[0023] Figure 3 It is a schematic cross-sectional structure diagram of the electrical connector of the first preferred embodiment of the present case;

[0024] Figure 4A It is a schematic diagram of the assembly structure of the ground terminal and the electrical terminal of the electrical connector of the second preferred embodiment of the present case;

[0025] Figure 4B for Figure 4A A schematic diagram of the exploded structure of the ground terminal and the electrical terminal of the electrical connector shown;

[0026] Figure 5A It is a schematic diagram of the assembly structure of the ground terminal and the electrical terminal of the electrical connector of the third preferred embodiment of the present case;

[0027] Figure 5B for Figure 5A FIG. 1 is a schematic diagram of the exploded structure of the ground terminal and the electrical terminal of the electrical connector.

[0028] Description of Figure Numbers

[0029] 1: Existing electrical connector

[0030] 10: Shell

[0031] 100: Accommodation space

[0032] 11: Ground terminal group

[0033] 11a, 12a: Free end

[0034] 11b, 12b: End

[0035] 11c, 12c: Extension

[0036] 12: Electrical terminal set

[0037] 2, 3, 4: Electrical connector

[0038] 20, 30, 40: Shell

[0039] 200, 300, 400: Accommodation space

[0040] 201: Top

[0041] 21, 31, 41: Grounding terminal

[0042] 210, 220, 310, 320: Free end

[0043] 211, 221, 311, 321: End

[0044] 22, 32, 42: electrical terminals

[0045] 23, 33, 43: Ground connection

[0046] 24, 34, 44: Electrical terminal connection part

[0047] 25, 35, 45: First extension

[0048] 251, 361: First plate

[0049] 252, 362: Second plate

[0050] 26, 36, 46: Second extension

[0051] 261, 351: The third plate

[0052] 451: Panels

[0053] D: Distance

[0054] H: height difference between the first extension and the second extension

[0055] L1: length of the first vertical projection

[0056] L10: Length of the first plate

[0057] L11: Length of the second plate

[0058] L2: length of the second vertical projection

[0059] L3: Overlap projection length

[0060] L30: The length of the overlap between the first plate and the second extension

[0061] W: Width of the shell

[0062] W2: Width of the plate structure of the bent step DETAILED DESCRIPTION

[0063] Some typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than limiting the present invention.

[0064] Figure 2AFIG. 1 is a schematic diagram of the assembly structure of the ground terminal and the electrical terminal of the electrical connector of the first preferred embodiment of the present invention. Figure 2B for Figure 2A The schematic diagram of the exploded structure of the ground terminal and the electrical terminal of the electrical connector is shown in FIG. In this embodiment, the electrical connector 2 is a universal serial bus (USB) connector, and in particular, a USB TYPE-C electrical connector. Figure 2A As shown, the electrical connector set 2 of the preferred embodiment of the present case is mainly a male end electrical connector set, including: a housing 20, a plurality of grounding terminals 21, a plurality of electrical terminals 22, a grounding terminal connection portion 23 and an electrical terminal connection portion 24. The housing 20 has a housing space 200. The plurality of grounding terminals 21 and the plurality of electrical terminals 22 are correspondingly arranged in the housing space 200 of the housing 20. Among them, the grounding terminal connection portion 23 is connected to the plurality of grounding terminals 21, and is bent to extend a first extension portion 25, and the electrical terminal connection portion 24 is connected to the plurality of electrical terminals 22, and has a second extension portion 26. In this embodiment, one of the first extension portion 25 and the second extension portion 26 is a plate-like structure with a bent step. In some embodiments, the plurality of grounding terminals 21, the plurality of electrical terminals 22 and their corresponding grounding terminal connection portions 23, the electrical terminal connection portions 24, the first extension portion 25 and the second extension portion 26 can all be, but not limited to, made of a metal material.

[0065] See also Figure 2B . As shown in the figure, each grounding terminal 21 has a free end 210 and a terminal 211. The free end 210 is used to connect to a connection terminal (not shown) inside another electrical connector (not shown). The terminal 211 is correspondingly arranged at the other opposite end of the free end 210 and connected to the grounding terminal connection part 23. In this embodiment, the number of the plurality of grounding terminals 21 is 2, but not limited thereto, and the grounding terminal connection part 23 is a plate structure correspondingly connected to the terminals 211 of the two grounding terminals 21. And, the grounding terminal connection part 23 is further bent downward and extends out a first extension part 25. In this embodiment, the first extension part 25 has a first plate 251 and a second plate 252. The first plate 251 and the second plate 252 are respectively extended downward and bent from the two side edges of the grounding terminal connection part 23, and the first plate 251 and the second plate 252 are parallel to the grounding terminal connection part 23, but not limited thereto. Therefore, the first plate 251 can be used as a welding surface. In addition, the heat conduction area can be increased by enlarging the areas of the first plate 251 and the second plate 252, thereby quickly dissipating heat and effectively reducing temperature rise.

[0066] Similarly, in this embodiment, the number of the plurality of electrical terminals 22 is 2, but not limited thereto, and each electrical terminal 22 has a free end 220 and a terminal 221, the free end 220 is used to be connected to a connection terminal (not shown) inside another electrical connector (not shown), and the terminal 221 is correspondingly disposed at the other opposite end of the free end 220 and connected to the electrical terminal connection portion 24. As shown in the figure, the electrical terminal connection portion 24 is a plate structure correspondingly connected to the terminals 221 of the two electrical terminals 22. And, the electrical terminal connection portion 24 further extends a second extension portion 26 backward. In this embodiment, the second extension portion 26 is a bent step plate structure, which has a larger width and is bent upward on one side to form a higher third plate 261, and the third plate 261 is parallel to the electrical terminal connection portion 24 and the second extension portion 26, but not limited thereto. Compared with the prior art, the area of ​​the second extension portion 26 is larger, and the idle space inside the electrical connector 2 can be more effectively utilized by the bent and extended third plate 261 to increase the heat dissipation area, thereby reducing the temperature rise and increasing the rated current value.

[0067] See also Figure 3 . Figure 3 The schematic diagram of the cross-sectional structure of the electrical connector of the first preferred embodiment of the present case. As shown in the figure, a plurality of grounding terminals 21 and a plurality of electrical terminals 22 are correspondingly arranged in the accommodating space 200 of the shell 20. As mentioned above, the two side edges of the grounding terminal connection portion 23 connected to the plurality of grounding terminals 21 are bent downward and extended to respectively constitute the first plate 251 and the second plate 252 of the first extension portion 25. In this embodiment, the first plate 251 is used as a welding surface, so that it has a distance D with the top surface 201 of the shell 20, thereby maintaining the welding height. In some embodiments, the distance D is not less than 1.8 mm, but is not limited thereto. In addition, as mentioned above, the electrical terminal connection portion 24 connected to the plurality of electrical terminals 22 also extends a second extension portion 26, and a higher third plate 261 is bent upward on one side. As can be seen from the figure, the height of the third plate 261 of the second extension portion 26 is slightly higher than the second plate 252 of the first extension portion 25, that is, there is a height difference H between the third plate 261 and the second plate 252. In some embodiments, this height difference H is not less than 0.4 mm, but not limited thereto. The height difference H is used to maintain a safe distance between the first extension portion 25 and the second extension portion 26 to avoid sparkover, and to facilitate subsequent glue filling, assembly operations, and other procedures. In other embodiments, the plate-like structure of the bent step of the second extension portion 26 has a width W2, and this width W2 is greater than 1 / 2 of the width W of the housing 20, but not limited thereto.

[0068] Please continue reading Figure 3. As shown in the figure, the first extension portion 25 has a first vertical projection. Since the first extension portion 25 of the present embodiment is composed of a first plate 251 and a second plate 252, the length L1 of the first vertical projection is the length L10 of the first plate 251 plus the length L11 of the second plate 252. Similarly, the second extension portion 26 also has a second vertical projection. Since the second extension portion 26 is a plate-like structure of a bent step, in the present embodiment, the length L2 of the second vertical projection is equal to the width W2 of the plate-like structure of the bent step, but it is not limited thereto. In other embodiments, the length L1 of the first vertical projection and the length L2 of the second vertical projection vary with the different types of the first extension portion 25 and the second extension portion 26. As shown in the figure, it can be seen that the first vertical projection of the first extension portion 25 and the second vertical projection of the second extension portion 26 have a partial overlap, and these overlapping portions define an overlapping projection length L3. In this embodiment, since the second vertical projection of the second extension portion 26 only covers part of the first plate 251 of the first extension portion 25 and the entire second plate 252, the overlapping projection length L3 is the length L30 of the partial overlap between the first plate 251 and the second extension portion 26 plus the length L11 of the second plate 252. In some embodiments, the overlapping projection length L3 is between 1 / 4 and 2 / 3 of the width W of the housing 20, but is not limited thereto.

[0069] See also Figure 4A and Figure 4B . Figure 4A FIG. 1 is a schematic diagram of the assembly structure of the ground terminal and the electrical terminal of the electrical connector according to the second preferred embodiment of the present invention. Figure 4B for Figure 4A The schematic diagram of the exploded structure of the ground terminal and the electrical terminal of the electrical connector is shown in FIG. Figure 4A and Figure 4B As shown, the electrical connector group 3 of the present embodiment also includes: a shell 30, a plurality of grounding terminals 31, a plurality of electrical terminals 32, a grounding terminal connecting portion 33 and an electrical terminal connecting portion 34, and the plurality of grounding terminals 31 and the plurality of electrical terminals 32 are correspondingly arranged in the accommodating space 300 of the shell 30. Similar to the aforementioned embodiment, each grounding terminal 31 has a free end 310 and an end 311, and the grounding terminal connecting portion 33 is connected to the ends 311 of the plurality of grounding terminals 31, and is bent to extend a first extension portion 35. Each electrical terminal 32 also has a free end 320 and an end 321, and the electrical terminal connecting portion 34 is connected to the plurality of electrical terminals 32, and has a second extension portion 36. However, in the present embodiment, the structures of the first extension portion 35 and the second extension portion 36 are different from those of the aforementioned embodiment. As Figure 4BAs shown, the first extension portion 35 is a plate-like structure with a bent step that is bent downward from one side of the ground terminal connection portion 33. The width of the plate-like structure is relatively large, and a third plate 351 is bent upward from one side of the first extension portion 35. The third plate 351 is parallel to the ground terminal connection portion 33 and the first extension portion 35, but not limited thereto. In addition, the second extension portion 36 has a first plate 361 and a second plate 362, and the first plate 361 and the second plate 362 are parallel to the electrical terminal connection portion 34, but not limited thereto. Through the first extension portion 35 with a plate-like structure with a bent step and the second extension portion 36 with the first plate 361 and the second plate 362, the idle space inside the electrical connector 3 can be effectively utilized, and the heat dissipation area can be increased, so as to reduce the temperature rise and increase the rated current value.

[0070] See also Figure 5A and Figure 5B . Figure 5A FIG. 1 is a schematic diagram of the assembly structure of the ground terminal and the electrical terminal of the electrical connector according to the third preferred embodiment of the present invention. Figure 5B for Figure 5A Schematic diagram of the exploded structure of the grounding terminal and the electrical terminal of the electrical connector shown. Similar to the aforementioned embodiment, the electrical connector set 4 of this embodiment also includes: a housing 40, a plurality of grounding terminals 41, a plurality of electrical terminals 42, a grounding terminal connection portion 43 and an electrical terminal connection portion 44, and the plurality of grounding terminals 41 and the plurality of electrical terminals 42 are correspondingly arranged in the accommodating space 400 of the housing 40. The structures and connection methods of the plurality of grounding terminals 41 and the plurality of electrical terminals 42 and the correspondingly connected grounding terminal connection portions 43 and the electrical terminal connection portions 44 are similar to those of the aforementioned embodiment, so they are not repeated here. However, in this embodiment, the number of the plurality of grounding terminals 41 is 2, and the grounding terminal connection portion 43 is bent and extended downward to form a first extension portion 45, and the first extension portion 45 is also a plate-like structure of a bent step, and its width is relatively large, close to the distance between the two grounding terminals 41, but not limited thereto. And, one side of the ground terminal connection portion 43 is bent downward and extended to form another plate 451. The width of the plate 451 is smaller than the first extension portion 45, and there is also a height difference between the plate 451 and the first extension portion 45, that is, the plate 451 is slightly higher than the first extension portion 45. And, in this embodiment, the plate 451 is parallel to the ground terminal connection portion 43 and the first extension portion 45, but not limited to this. In addition, the electrical terminal connection portion 44 extends backward to form a second extension portion 46. In this embodiment, the second extension portion 46 is an L-shaped plate structure, but not limited to this. Through the first extension portion 45 of the plate-like structure of the bent step of this embodiment and the second extension portion 46 of the L-shaped plate structure, the idle space inside the electrical connector 4 is effectively utilized, and the heat dissipation area is increased, so as to reduce the temperature rise and increase the rated current value.

[0071] In summary, the present invention provides an electrical connector, and the electrical connector of the present invention is a USB TYPE-C electrical connector for charging, which includes a housing, a plurality of grounding terminals, a plurality of electrical terminals, a grounding terminal connection portion, and an electrical terminal connection portion, wherein the grounding terminal connection portion is connected to the plurality of grounding terminals and bends to extend a first extension portion, and the electrical terminal connection portion is connected to the plurality of electrical terminals and extends a second extension portion, and at least one of the first extension portion and the second extension portion is a plate-like structure with a bent step. By setting the first extension portion and the second extension portion of the plate-like structure with an enlarged area and a bent step, the idle space inside the electrical connector is effectively utilized, and the heat conduction area is further expanded, that is, the heat dissipation area is increased, thereby reducing the temperature rise during charging, improving the current tolerance, and improving the charging current value and charging efficiency.

[0072] The present invention may be modified in various ways by those skilled in the art, but all of them are within the scope of the protection sought by the attached claims.

Claims

1. An electrical connector, comprising: A housing having a containing space; A plurality of grounding terminals are arranged in the accommodating space; A ground terminal connecting portion, connected to the plurality of ground terminals and bent to extend out a first extension portion; A plurality of electrical terminals are disposed in the accommodation space; and An electrical end connection portion connected to the plurality of electrical terminals and extending a second extension portion; in, One of the first extension portion and the second extension portion is a plate-shaped structure with bent steps.

2. The electrical connector according to claim 1, wherein each of the grounding terminals and each of the electrical terminals has a free end and an end, the grounding terminal connecting portion is connected to the ends of the multiple grounding terminals, and the electrical end connecting portion is correspondingly connected to the ends of the multiple electrical terminals. 3 . The electrical connector according to claim 1 , wherein a width of the plate-like structure of the bent step is greater than 1 / 2 of a width of the housing. 4 . The electrical connector according to claim 1 , wherein the first extension portion has a first vertical projection, the second extension portion has a second vertical projection, the first vertical projection partially overlaps with the second vertical projection, and defines an overlapping projection length. 5 . The electrical connector according to claim 4 , wherein the overlapping projection length is between 1 / 4 and 2 / 3 of the width of the housing. 6 . The electrical connector according to claim 1 , wherein a distance exists between at least one of the first extension portion and the second extension portion and a top surface of the housing. The electrical connector according to claim 1 , wherein there is a height difference between the first extending portion and the second extending portion. 8 . The electrical connector according to claim 1 , wherein one of the first extension portion and the second extension portion is a plate-like structure of the bent step, and the other second extension portion or the first extension portion has a first plate member and a second plate member. 9 . The electrical connector according to claim 8 , wherein one of the first extension portion and the second extension portion is a plate-like structure of the bent step and has a third plate member. 10 . The electrical connector according to claim 1 , wherein one of the first extending portion and the second extending portion is an L-shaped plate structure.

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