High-power direct-current charging socket and plug connector

Abstract

The utility model provides a high-power direct current charging socket and plug connector, the direct current charging socket and plug connector are respectively provided with two power supply electrode plate pairs which are arranged on the upper row and the lower row of the corresponding connector, the power supply electrode plate pair on the upper row only comprises a single positive plate and a single negative plate, and the power supply electrode plate pair on the lower row only comprises a single negative plate and a single positive plate. The power supply electrode plate pair in the lower row only comprises a single positive plate and a single negative plate, and the power supply electrode plate pair in the lower row and the single positive plate and the single negative plate in the upper row are staggered up and down, so that the direct-current charging plug connector can be positively and reversely inserted into the direct-current charging socket connector for use; each connector only comprises two power supply electrode plate pairs, so that the width of each electrode plate can be increased as much as possible in accordance with the connector size standard specification, the current resistance value can be effectively improved, and the purpose of high-power charging is achieved.

Description

Technical Field

[0001] The present invention relates to a charging connector, in particular to a high-power DC charging socket and plug connector. Background Art

[0002] In response to the trend of electronic products becoming thinner and lighter, the size of the DC charging connectors used in conjunction with them has also been reduced accordingly. However, due to the high frequency of use and high power consumption of electronic products, a larger charging power is required to meet the demand for fast charging.

[0003] Therefore, as shown in the table below, the current withstand specification of the miniaturized USB DC charging connector shows that the current withstand specification of the USB TYPE-C connector (USB PD) is only up to 5A (ampere), and further improvement is necessary.

[0004] Utility Model Content

[0005] In view of the fact that the maximum current withstand of the current miniaturized DC charging connector is still low and cannot meet the high-power fast charging requirements, the present invention proposes a high-power DC charging socket and plug connector.

[0006] To achieve the above purpose, the high power DC charging socket connector comprises:

[0007] a first housing;

[0008] An insulating tongue piece is disposed in the first housing and includes two opposite first surfaces and a second surface;

[0009] A single first positive plate is disposed on the first surface of the insulating tongue;

[0010] A single first negative electrode plate is disposed on the first surface of the insulating tongue and is arranged side by side with the first positive electrode plate;

[0011] a single second positive electrode plate, disposed on the second surface of the insulating tongue, interlaced with the first positive electrode plate and located below the first negative electrode plate; and

[0012] A single second negative electrode plate is disposed on the second surface of the insulating tongue piece, interlaced with the first negative electrode plate and located below the first positive electrode plate.

[0013] As can be seen from the above description, in order to improve the current resistance value of the high-power DC charging socket connector and achieve the purpose of high-power charging, the DC charging socket connector has a single first positive plate and a single first negative plate disposed on the first surface of its insulating tongue piece, so the width of the single first positive plate and the single first negative plate can be increased as much as possible within the connector size standard specification, and the second positive plate and the second negative plate located on the second surface of the insulating tongue piece are also the same. In addition, since the width of each electrode plate of the DC charging socket connector is wide enough, compared with the electrical connector of the same size specification, the finishing strength of the insulating tongue piece can be strengthened, thereby extending the service life of the DC charging socket connector of the invention.

[0014] To achieve the above purpose, the high-power DC charging plug connector includes:

[0015] a third housing having a front opening and a rear opening;

[0016] An insulating base, disposed in the third housing, comprising two opposite first slot walls, a second slot wall and a plug-in slot; wherein the slot opening of the plug-in slot faces the front opening of the third housing;

[0017] A single first positive electrode elastic plate is disposed on the insulating base and has an elastic portion extending along the first slot wall of the plug slot;

[0018] A single first negative electrode elastic plate is disposed on the insulating base and has an elastic portion extending along the first slot wall of the insertion slot and arranged side by side with the first positive electrode elastic plate;

[0019] A single second positive elastic plate is disposed on the insulating base and has an elastic portion extending along the second slot wall of the plug slot; wherein the second positive elastic plate is staggered with the first positive elastic plate up and down and is located below the first negative elastic plate; and

[0020] A single second negative elastic plate is disposed on the insulating base and has an elastic portion extending along the second slot wall of the plug slot; wherein the second negative elastic plate is staggered with the first negative elastic plate up and down and is located below the first positive elastic plate.

[0021] It can be seen from the above description that the high-power DC charging plug connector of the present invention is provided with a single first positive elastic plate, a single first negative elastic plate, a single second positive elastic plate and a single second negative elastic plate, so the width of each plate can be increased as much as possible within the connector size standard specification to match the first positive plate, the first negative plate, the second positive plate and the second negative plate of the above-mentioned DC charging socket connector, and can be used with the above-mentioned DC charging socket connector for forward and reverse plugging; therefore, the current resistance value of the present invention can also be effectively improved to achieve the purpose of high-power charging.

[0022] In order to further understand the technologies, means and effects adopted by the present application to achieve the intended purpose, please refer to the following detailed description and drawings of the present application. It is believed that the purpose, characteristics and features of the present application can be deeply and specifically understood thereby. However, the drawings are only provided for reference and illustration and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 : A three-dimensional diagram of the novel high-power DC charging socket connector;

[0024] Figure 2 : A three-dimensional exploded view of the new high-power DC charging socket connector;

[0025] Figure 3 : A front cross-sectional view of the new high-power DC charging socket and plug connector being plugged into each other;

[0026] Figure 4 : A side cross-sectional view of the new high-power DC charging socket and plug connector being plugged into each other;

[0027] Figure 5 : A three-dimensional diagram of the novel high-power DC charging plug connector;

[0028] Figure 6 : A side view of the new high-power DC charging plug connector.

[0029] Wherein, the reference numerals are:

[0030] 10: DC charging socket connector

[0031] 11: First Shell

[0032] 111: First piercing

[0033] 112: Front opening

[0034] 113: Rear opening

[0035] 12: Second shell

[0036] 121: Second piercing

[0037] 20: Insulation tongue

[0038] 21: First surface

[0039] 22: Second surface

[0040] 23: Side

[0041] 24: Front-end

[0042] 25: Insulation seat

[0043] 26: Middle partition

[0044] 261: Side

[0045] 262: Front End

[0046] 30: First positive plate

[0047] 31: first negative plate

[0048] 32: Second positive plate

[0049] 33: Second negative plate

[0050] 34: Elastic terminal

[0051] 341:Contact Department

[0052] 35, 35': First signal terminal

[0053] 40: DC charging plug connector

[0054] 41: The third shell

[0055] 411: Front opening

[0056] 412: Rear opening

[0057] 50: Edge base

[0058] 51: Plug slot

[0059] 511: Notch

[0060] 52: First groove wall

[0061] 53: Second groove wall

[0062] 60: first positive electrode elastic plate

[0063] 601: Elastic part

[0064] 61: first negative electrode elastic plate

[0065] 611: Elastic part

[0066] 62: first positive electrode elastic plate

[0067] 621: Elastic part

[0068] 63: Second negative electrode elastic plate

[0069] 631: Elastic part

[0070] 64, 64': Second signal terminal

[0071] 65, 65': The third signal terminal

[0072] 70: Charging cable

[0073] 71:Metal Wire

[0074] 72:Exocolloid. DETAILED DESCRIPTION

[0075] The following is a combination of drawings and embodiments of the present invention to further explain the technical means adopted by the present invention to achieve the predetermined invention purpose, wherein the drawings have been simplified for illustrative purposes only, and the structure or method invention of the present invention is explained by describing the relationship between the elements and components of the present invention. Therefore, the elements shown in the drawings are not presented in actual quantity, actual shape, actual size and actual proportion, and the size or size proportion has been enlarged or simplified to provide a better description. The actual quantity, actual shape or actual size proportion has been selectively designed and configured, and the detailed element layout may be more complicated.

[0076] The present invention is directed to an improvement of a charging connector, and the technical contents of the present invention are described in detail below with reference to embodiments and drawings.

[0077] First see Figures 1 to 3 As shown, an embodiment of the high power DC charging socket connector 10 of the present invention comprises a first housing 11 , an insulating tongue 20 , a single first positive plate 30 , a single second positive plate 32 , a single first negative plate 31 and a single second negative plate 33 .

[0078] The first housing 11 is a metal housing, and a second housing 12 can be further mounted outside the first housing 11. The first housing 11 includes a first through hole 111, a front opening 112, and a rear opening 113. The second housing 12 has a second through hole 121 connected to the first through hole 111 of the first housing 11.

[0079] The insulating tongue 20 is disposed in the first housing 11; in this embodiment, the insulating tongue 20 is integrally formed with an insulating seat 25, and the insulating seat 25 is located at the rear opening 113 of the first housing 11. In one embodiment, a middle partition 26 may be further embedded in the insulating tongue 20, and the body of the middle partition 26 is a metal plate with a minimum thickness of 0.15 mm; in another embodiment, the two side edges 261 of the middle partition 26 may be partially exposed from the two opposite sides 23 of the insulating tongue 20; in another embodiment, the two side edges 261 of the middle partition 26 may be formed by stacking two metal plates, so the thickness is twice the thickness of the metal plate. In addition, the front end 262 of the middle partition 26 can be further deformed into a non-flat shape, that is, a bulge or bend can be formed, and its maximum height can be greater than the thickness of the middle partition 26. The front end 262 of the middle partition 26 can further partially or completely protrude from the front end 24 of the insulating tongue 20.

[0080] The first positive plate 30 and the first negative plate 31 are fixed side by side on the first surface 21 of the insulating tongue 20. Figure 3 As shown in FIG. 1 , the second positive electrode plate 32 and the second negative electrode plate 33 are fixed side by side on the second surface 22 of the insulating tongue 20 . Figure 3 From the perspective of the direction, the first positive electrode plate 30 and the second positive electrode plate 32 are respectively located on the first surface 21 and the second surface 22 of the insulating tongue 20 and are staggered on the left and right, and the first negative electrode plate 31 and the second negative electrode plate 33 are respectively located on the first surface 21 and the second surface 22 of the insulating tongue 20 and are staggered on the right and left, so the lower part of the first positive electrode plate 30 corresponds to the second negative electrode plate 33, and the lower part of the first negative electrode plate 31 corresponds to the second positive electrode plate 32. In one embodiment, the thickness of each of the first positive electrode plate 30, the first negative electrode plate 31, the second positive electrode plate 32, and the second negative electrode plate 33 is at least 0.2 mm, and each of them maintains a maximum spacing of 0.2 mm with the surface closest to the middle separator 26. In addition, the width of the first negative electrode plate 31 and the second negative electrode plate 33 is wider than the width of the first positive electrode plate 30 and the second positive electrode plate 32.

[0081] For example Figure 2 and Figure 4 As shown, the novel DC charging socket connector 10 may further include an elastic terminal 34 and at least one first signal terminal 35. The elastic terminal 34 is fixed in the insulating seat 25, and its front end protrudes upward from the top surface of the insulating seat 25 and penetrates into the first through hole 111 of the first shell 11 and the second through hole 121 of the second shell, and the front end of the elastic terminal 34 is bent to form a contact portion 341, which is located in front of the insulating seat 25 and above the first surface 21 of the insulating tongue 20. The at least one first signal terminal 35 can be disposed on the first surface 21 or the second surface 22 of the insulating tongue 20; in one embodiment, as Figure 3 As shown, the DC charging socket connector 10 includes two first signal terminals 35, 35', which are respectively arranged on the first surface 21 and the second surface 22 of the insulating tongue 20, wherein the first signal terminal 35 arranged on the first surface 21 is located between the first positive plate 30 and the first negative plate 31, and the first signal terminal 35' arranged on the second surface 22 is located between the second positive plate 32 and the second negative plate 33, but the front ends thereof are far away from the front ends of the first and second positive plates 30, 32 and the front ends of the first and second negative plates 31, 33.

[0082] See also Figure 5 and Figure 6 As shown, an embodiment of the high-power DC charging plug connector 40 of the present invention is used to be plugged into a Figure 1The high power DC charging socket connector 10 is shown. The DC charging plug connector 40 includes a third housing 41, an insulating base 50, a single first positive elastic plate 60, a single first negative elastic plate 61, a single second positive elastic plate 62, a single second negative elastic plate 63 and a charging cable 70.

[0083] The third housing 41 is a metal shell and has a front opening 411 and a rear opening 412 .

[0084] The insulating base 50 is disposed in the third housing 41 , and a plug-in slot 51 of the insulating base 50 faces the front opening 411 of the third housing 41 . The notch 511 of the plug-in slot 51 matches the insulating tongue 20 of the DC charging socket connector 10 .

[0085] The first positive elastic plate 60 and the first negative elastic plate 61 are arranged side by side on the insulating base 50, and an elastic portion 601, 611 is extended along the first slot wall 52 (upper slot wall) of the insertion slot 51, and the second positive elastic plate 62 and the second negative elastic plate 63 are arranged on the insulating base 50, and an elastic portion 621, 631 is extended along the second slot wall 53 (lower slot wall) of the insertion slot 51. Figure 3 As shown, Figure 3 From the perspective of direction, the first positive elastic plate 60 and the second positive elastic plate 62 are respectively located in an up-down and left-right staggered position, while the first negative elastic plate 61 and the second negative elastic plate 63 are located in an up-down and right-left staggered position, so the second negative elastic plate 63 corresponds to the lower part of the first positive elastic plate 60, and the second positive elastic plate 62 corresponds to the lower part of the first negative elastic plate 61.

[0086] The rear ends of the first positive elastic plate 60, the first negative elastic plate 61, the second positive elastic plate 62 and the second negative elastic plate 63 extend backward from the insulating base 50 and protrude out of the rear opening 412 of the third housing 41 to be connected to the plurality of metal wires 71 of the charging cable 70. In addition, the DC charging plug connector 40 may further include an outer colloid 72, which covers the junction between the charging cable 70 and the third housing 41.

[0087] In one embodiment, the DC charging plug connector 40 of the present invention is further provided with at least one second signal terminal 64, which is provided on the insulating base 50 and is located between the first positive elastic plate 60 and the first negative elastic plate 61, or between the second positive elastic plate 62 and the second negative elastic plate 63, and the end of the second signal terminal 64 is respectively connected to the corresponding first negative elastic plate 61 or the second negative elastic plate 63. In one embodiment, the DC charging plug connector 40 of the present invention is provided with two second signal terminals 64, which are respectively located between the first positive elastic plate 60 and the first negative elastic plate 61 and between the second positive elastic plate 62 and the second negative elastic plate 63.

[0088] In one embodiment, the DC charging plug connector 40 of the present invention further includes two third signal terminals, which are respectively disposed on the first slot wall 52 and the second slot wall 53 of the plug slot 51 of the insulating base 50, and the two third signal terminals are opposite and respectively located between the first positive elastic plate 60 and the first negative elastic plate 61 and the second positive elastic plate 62 and the second negative elastic plate 63. Figure 6 As shown, the ends of the two third signal terminals are integrally connected to form a tuning fork-shaped terminal.

[0089] When the DC charging plug connector 40 is Figure 5 Direction Insertion Figure 1 When the DC charging socket connector 10 is arranged in a direction, as Figure 3 and Figure 4 As shown, the insulating tongue 20 of the DC charging socket connector 10 will extend into the insertion slot 51 of the insulating base 50; at this time, the elastic parts 601 and 611 of the first positive elastic plate 60 and the first negative elastic plate 61 will contact the first positive plate 30 and the first negative plate 31 of the DC charging socket connector 10, and the second signal terminal 64 integrally connected to the first negative elastic plate 61 will contact the first negative plate 31, and the third signal terminal 65 located on the first slot wall 52 of the insertion slot 51 of the insulating base 50 will contact the first signal terminal 35 arranged on the first surface 21 of the insulating tongue 20. At the same time, the elastic parts 621 and 631 of the second positive elastic plate 62 and the second negative elastic plate 63 will contact the second positive plate 32 and the second negative plate 33 of the DC charging socket connector 10, and the second signal terminal 64' integrally connected to the second negative elastic plate 63 will contact the first signal terminal 35' located on the second surface 22 of the insulating tongue 20. In addition, if Figure 4 As shown, the contact portion 341 of the elastic terminal 34 of the DC charging socket connector 10 contacts the top surface of the third housing 41 of the DC charging plug connector 40 .

[0090] If the DC charging plug connector 40 is rotated 180 degrees and inserted into the DC charging socket connector 10, the DC charging Figure 3 As shown, the DC charging plug connector 40 of the present application does not limit the plugging direction and can be used by plugging the DC charging socket connector 10 forward or reversely.

[0091] In summary, in order to improve the current resistance value and achieve the purpose of high-power charging, the DC charging socket and plug connector of the present application have a single first positive plate and a single first negative plate on the first surface of the insulating tongue, and only a first signal terminal can be added between the first positive plate and the first negative plate; in addition, no other terminals are set on the first surface, so the width of the single first positive plate and the single first negative plate is increased as much as possible within the connector size standard specification, and the second positive plate and the second negative plate located on the second surface of the insulating tongue are the same. Similarly, the DC charging plug connector is only provided with a single first positive elastic plate, a single first negative elastic plate, a single second positive elastic plate and a single second negative elastic plate, so the width of each plate can be increased as much as possible within the connector size standard specification, so that the current resistance value can be effectively improved (taking the size specification of the USB TYPE-C connector as an example, the current resistance value of the new type can be increased to 20A) to achieve the purpose of high-power charging. In addition, since the width of each electrode plate of the DC charging socket connector is wide enough, compared with electrical connectors of the same size specification, the finishing strength of the insulating tongue piece can be enhanced, thereby extending the service life of the DC charging socket connector.

[0092] The above description is only an embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as above by the embodiments, it is not used to limit the present invention. Any ordinary technician in the technical field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A high power DC charging socket connector, It is characterized in that include: a first housing; An insulating tongue piece is disposed in the first housing and includes two opposite first surfaces and a second surface; A single first positive plate is disposed on the first surface of the insulating tongue; A single first negative electrode plate is disposed on the first surface of the insulating tongue and is arranged side by side with the first positive electrode plate; A single second positive plate, disposed on the second surface of the insulating tongue, interlaced with the first positive plate and located below the first negative plate; as well as A single second negative electrode plate is disposed on the second surface of the insulating tongue piece, interlaced with the first negative electrode plate and located below the first positive electrode plate.

2. The high power DC charging socket connector according to claim 1, It is characterized in that The device further comprises a first signal terminal which is disposed on the first surface of the insulating tongue and is located between the first positive plate and the first negative plate.

3. The high power DC charging socket connector according to claim 1, It is characterized in that It further includes two first signal terminals, which are respectively arranged on the first surface and the second surface of the insulating tongue; wherein the first signal terminal arranged on the first surface is located between the first negative plates of the first positive plate, and the first signal terminal arranged on the second surface is located between the second negative plates of the second positive plate.

4. The high power DC charging socket connector according to any one of claims 1 to 3, It is characterized in that The invention further comprises an elastic terminal which is arranged in the first housing and located above the first surface of the insulating tongue.

5. The high power DC charging socket connector according to claim 4, It is characterized in that in: The first shell includes a front opening, a rear opening and a first through hole; The insulating tongue piece is integrally formed with an insulating seat backwards, and the insulating seat is located at the rear opening of the first housing; as well as; The elastic terminal is fixed in the insulating seat, and its front end penetrates into the first through hole of the insulating seat and is then bent to form a contact portion, which is located in front of the insulating seat.

6. The high power DC charging socket connector according to claim 4, It is characterized in that A middle partition is embedded in the insulating tongue.

7. The high power DC charging socket connector according to claim 6, It is characterized in that The intermediate partition comprises: A main body, in the shape of a flat plate; Two side edges are exposed from two opposite side portions of the insulating tongue piece, and the thickness of each side edge is the same as the thickness of the main body of the middle partition plate or is twice the thickness of the main body; and A front end is non-flat, so that its maximum height is greater than the thickness of the body.

8. The high power DC charging socket connector according to claim 7, It is characterized in that The front end of the middle partition plate is entirely or partially protruded from the front end of the insulating tongue piece.

9. The high power DC charging socket connector according to claim 8, It is characterized in that in: The width of the first negative electrode plate and the second negative electrode plate is wider than the width of the first positive electrode plate and the second positive electrode plate; The minimum thickness of the body of the middle partition is 0.15 mm; and The thickness of each of the first positive electrode plate, the first negative electrode plate, the second positive electrode plate and the second negative electrode plate is at least 0.2 mm, and each of them maintains a maximum spacing of 0.2 mm from a surface closest to the middle separator.

10. The high power DC charging socket connector according to claim 5, It is characterized in that The invention further comprises a second shell which is sleeved on the first shell and has a second through hole which is communicated with the first through hole of the first shell.

11. A high power DC charging plug connector, It is characterized in that include: a third housing having a front opening and a rear opening; An insulating base, disposed in the third housing, comprising two opposite first slot walls, a second slot wall and a plug-in slot; wherein the slot opening of the plug-in slot faces the front opening of the third housing; A single first positive electrode elastic plate is disposed on the insulating base and has an elastic portion extending along the first slot wall of the plug slot; A single first negative electrode elastic plate is disposed on the insulating base and has an elastic portion extending along the first slot wall of the insertion slot and arranged side by side with the first positive electrode elastic plate; A single second positive elastic plate is disposed on the insulating base and has an elastic portion extending along the second slot wall of the plug slot; wherein the second positive elastic plate is staggered with the first positive elastic plate up and down and is located below the first negative elastic plate; and A single second negative elastic plate is disposed on the insulating base and has an elastic portion extending along the second slot wall of the plug slot; wherein the second negative elastic plate is staggered with the first negative elastic plate up and down and is located below the first positive elastic plate.

12. The high power DC charging plug connector according to claim 11, It is characterized in that It further includes at least one second signal terminal, which is arranged on the insulating base and is located between the first positive elastic plate and the first negative elastic plate, or between the second positive elastic plate and the second negative elastic plate, and the end of the second signal terminal is integrally connected to the corresponding first negative elastic plate or the second negative elastic plate.

13. The high power DC charging plug connector according to claim 11, It is characterized in that It further includes two second signal terminals, which are respectively located between the first positive elastic plate and the first negative elastic plate and between the second positive elastic plate and the second negative elastic plate, and the ends of the two second signal terminals are respectively connected to the corresponding first negative elastic plate and the second negative elastic plate as a whole.

14. The high-power DC charging plug connector according to any one of claims 11 to 13, It is characterized in that It further includes two third signal terminals, which are respectively arranged on the first slot wall and the second slot wall of the plug-in slot of the insulating base, and are opposite to each other and respectively located between the first positive elastic plate and the first negative elastic plate and the second positive elastic plate and the second negative elastic plate.

15. The high power DC charging plug connector according to claim 14, It is characterized in that The ends of the two third signal terminals are integrally connected to form a tuning fork-shaped terminal.

16. The high-power DC charging plug connector according to any one of claims 11 to 13, It is characterized in that The rear ends of the first positive elastic plate, the first negative elastic plate, the second positive elastic plate and the second negative elastic plate all extend backward from the insulating base and protrude out of the rear opening of the third shell for connection with a plurality of metal wires of a charging cable.

17. The high power DC charging plug connector according to claim 16, It is characterized in that It further comprises an outer colloid, which covers the junction between the charging cable and the third shell.

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