High voltage resistant electrical connection device

Abstract

The invention provides a high-voltage-resistant electric connection device which comprises a first connector and a second connector, and each of the first connector and the second connector comprises a rubber core, a plurality of terminals and an outer shell. The plurality of terminals are respectively coated with an insulating layer in an embedded molding mode, and then the terminals coated with the insulating layers are assembled in the rubber core. The first connector and the second connector can be plugged with each other to achieve electrical connection. Therefore, an air gap and a creepage distance value between two adjacent terminals can be improved, so that a withstand test voltage value is improved, and the connector achieves the effects of miniaturization, high density and high voltage resistance. The plurality of terminals of the first connector are respectively coated with a first insulating layer and a second insulating layer, and the plurality of terminals of the second connector are respectively coated with a third insulating layer; the second insulating layer and the third insulating layer respectively wrap the rear section of the terminal, so that the electric connection device can achieve the effects of improving air gaps and creepage distance values in the three areas.

Description

Technical Field

[0001] The present invention relates to an electrical connection device, especially a high withstand voltage electrical connection device that can increase the air gap and creepage distance values. Background Art

[0002] The electrical connection device includes two connectors that can be plugged into each other to achieve electrical connection. The connector includes a plastic core and a plurality of terminals. The plurality of terminals are arranged on the plastic core. Since the plurality of terminals are arranged very densely, it is difficult to increase the air gap and creepage distance values, and thus the withstand test voltage value cannot be increased. If a plastic core retaining wall is provided, it will make the welding less convenient, and at the same time, it will make the product length dimension too long, and it is difficult for the connector to achieve the performance of miniaturization, high density, and high withstand voltage. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a high withstand voltage electrical connection device for the deficiencies of the prior art, which can increase the air gap and creepage distance values between adjacent terminals, thereby increasing the withstand test voltage value, and enabling the connector to achieve the performance of miniaturization, high density, and high withstand voltage.

[0004] To solve the above technical problems, the present invention provides a high withstand voltage electrical connection device, including: a first connector, including a first plastic core, a plurality of first terminals, and a first housing. The plurality of first terminals are each coated with a first insulating layer in an insert molding manner. The first insulating layer covers a partial area of the first terminal. The plurality of first terminals are arranged on the first plastic core. Two ends of the plurality of first terminals respectively form a first contact end and a first connection end. The first contact end extends out of the first plastic core. The first insulating layer partially extends out of the first plastic core and is close to the first contact end. The first insulating layer is partially located within the first plastic core. The first housing is arranged outside the first plastic core; and a second connector, including a second plastic core, a plurality of second terminals, and a second housing. The plurality of second terminals are arranged on the second plastic core. Two ends of the plurality of second terminals respectively form a second contact end and a second connection end. The second contact end is located within the second plastic core. A jack is formed at each position close to the second contact end within the second plastic core. The second housing is arranged outside the second plastic core; wherein, when the first connector and the second connector are plugged into each other, the first contact ends of the plurality of first terminals respectively contact the second contact ends of the plurality of second terminals, so that the first connector and the second connector achieve electrical connection, and the first insulating layers coated on the plurality of first terminals can be inserted into the corresponding jacks, so that the plurality of first insulating layers can extend into the second plastic core.

[0005] Preferably, each of the plurality of first terminals is coated with a second insulating layer in an embedded molding manner. The second insulating layer coats a partial area of the first terminal. A part of the second insulating layer extends out of the first rubber core and is close to the first connection end, and a part of the second insulating layer is located within the first rubber core.

[0006] Preferably, the length of the second insulating layer is 7 mm to 11 mm, and the thickness of the second insulating layer is 0.1 mm to 0.2 mm.

[0007] Preferably, the first terminal is in a cylindrical shape, the first insulating layer is in a hollow cylindrical shape and coats the outside of the first terminal, and the second insulating layer is in a hollow cylindrical shape and coats the outside of the first terminal.

[0008] Preferably, the length of the first insulating layer is 7 mm to 11 mm, and the thickness of the first insulating layer is 0.1 mm to 0.2 mm.

[0009] Preferably, each of the plurality of second terminals is coated with a third insulating layer in an embedded molding manner. The third insulating layer coats a partial area of the second terminal. A part of the third insulating layer extends out of the second rubber core and is close to the second connection end, and a part of the third insulating layer is located within the second rubber core.

[0010] Preferably, the length of the third insulating layer is 7 mm to 11 mm, and the thickness of the third insulating layer is 0.1 mm to 0.2 mm.

[0011] Preferably, the second terminal is in a cylindrical shape, and the third insulating layer is in a hollow cylindrical shape and coats the outside of the second terminal.

[0012] Preferably, the first connection end extends out of the first rubber core. The first connection end is welded to a first cable, and a first heat shrinkable tube is sleeved outside the first connection end.

[0013] Preferably, the second connection end extends out of the second rubber core. The second connection end is welded to a second cable, and a second heat shrinkable tube is sleeved outside the second connection end.

[0014] The beneficial effects of the present invention are as follows. The high withstand voltage electrical connection device provided by the present invention includes a first connector and a second connector. The first connector includes a first rubber core, a plurality of first terminals, and a first outer casing. The plurality of first terminals are each coated with a first insulating layer in an insert molding manner. The first insulating layer covers a partial area of the first terminal. The plurality of first terminals are disposed on the first rubber core. Both ends of the plurality of first terminals respectively form a first contact end and a first connection end. The first contact end extends out of the first rubber core. A part of the first insulating layer extends out of the first rubber core and is close to the first contact end. A part of the first insulating layer is located within the first rubber core. The second connector includes a second rubber core, a plurality of second terminals, and a second outer casing. The plurality of second terminals are disposed on the second rubber core. Both ends of the plurality of second terminals respectively form a second contact end and a second connection end. The second contact end is located within the second rubber core. A jack is formed at each position close to the second contact end within the second rubber core. When the first connector and the second connector are plugged into each other, the first contact ends of the plurality of first terminals respectively contact the second contact ends of the plurality of second terminals, enabling the first connector and the second connector to achieve electrical connection. Moreover, the first insulating layers coated on the plurality of first terminals can be inserted into the corresponding jacks, enabling the plurality of first insulating layers to extend into the second rubber core. Thereby, the air gap and creepage distance values between adjacent terminals can be increased, thereby increasing the withstand test voltage value, enabling the connector to achieve the effects of miniaturization, high density, and high withstand voltage.

[0015] Furthermore, each of the plurality of first terminals is coated with a second insulating layer in an insert molding manner. The second insulating layer covers a partial area of the first terminal. A part of the second insulating layer extends out of the first rubber core and is close to the first connection end. A part of the second insulating layer is located within the first rubber core. Each of the plurality of second terminals is coated with a third insulating layer in an insert molding manner. The third insulating layer covers a partial area of the second terminal. A part of the third insulating layer extends out of the second rubber core and is close to the second connection end. A part of the third insulating layer is located within the second rubber core. Thereby, the effect of increasing the air gap and creepage distance values can be achieved in multiple regions of the electrical connection device.

[0016] To further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only for reference and explanation, and are not used to limit the present invention. Description of the Drawings

[0017] Figure 1 It is a perspective view of the high withstand voltage electrical connection device of the present invention.

[0018] Figure 2 It is a perspective view of the high withstand voltage electrical connection device of the present invention from another angle.

[0019] Figure 3 It is a cross-sectional view of the high withstand voltage electrical connection device of the present invention.

[0020] Figure 4 This is an exploded perspective view of the first connector of the present invention.

[0021] Figure 5 This is a cross-sectional view of the first connector of the present invention.

[0022] Figure 6 This is an exploded perspective view of the second connector of the present invention.

[0023] Figure 7 This is a cross-sectional view of the second connector of the present invention.

[0024] Figure 8 This is a cross-sectional view of the first terminal and the first and second insulating layers of the present invention.

[0025] Figure 9 This is a cross-sectional view of the second terminal and the third insulating layer of the present invention. Detailed implementation manners

[0026] Embodiment

[0027] Please refer to Figures 1 to 3 , the present invention provides a high withstand voltage electrical connection device, including a first connector 100 and a second connector 200.

[0028] Please refer to again Figure 4 and Figure 5 , the first connector 100 includes a first plastic core 1, a plurality of first terminals 2 and a first outer housing 3. The first plastic core 1 is made of an insulating material such as plastic. Preferably, the first plastic core 1 is in a cylindrical shape. In this embodiment, the first plastic core 1 has a plurality of first fixing holes 11, and the plurality of first fixing holes 11 are arranged at intervals and extend to both ends of the first plastic core 1, and can be used to assemble the plurality of first terminals 2.

[0029] The plurality of first terminals 2 are made of a metal material with good electrical conductivity such as copper. The plurality of first terminals 2 are each coated with a first insulating layer 4 in an insert mold manner to achieve the effect of increasing the air gap and creepage distance values. The first insulating layer 4 is made of an insulating material such as plastic. The first insulating layer 4 can be a liquid crystal polymer (LCP) material. The first insulating layer 4 covers a partial area of the first terminal 2. In this embodiment, the first terminal 2 is in a cylindrical shape, and the first insulating layer 4 is in a hollow cylindrical shape and covers the outside of the first terminal 2.

[0030] The plurality of first terminals 2 may further be each coated with a second insulating layer 5 in an insert mold manner to achieve the effect of increasing the air gap and creepage distance values. The second insulating layer 5 is made of an insulating material such as plastic. The second insulating layer 5 may be a liquid crystal polymer (LCP) material. The second insulating layer 5 is coated on a partial area of the first terminal 2. In this embodiment, the first terminal 2 is in a cylindrical shape, and the second insulating layer 5 is in a hollow cylindrical shape and is coated outside the first terminal 2.

[0031] The plurality of first terminals 2 are respectively fixed to the plurality of first fixing holes 11, so that the plurality of first terminals 2 are arranged on the first rubber core 1. Both ends of the plurality of first terminals 2 respectively form a first contact end 21 and a first connection end 22. The first contact end 21 and the first connection end 22 may respectively extend out of both ends of the first rubber core 1. The first contact end 21 may be a male end. The first contact end 21 is located at one end of the first terminal 2 facing the second connector 200. The first contact end 21 can be used to contact the terminal of the second connector 200, so that the first connector 100 and the second connector 200 achieve electrical connection. The first connection end 22 is located at one end of the first terminal 2 facing away from the second connector 200. The first connection end 22 can form a welding area for welding and connecting a first cable 10 (as Figure 8 shown), and after the first connection end 22 welds the first cable 10, a first heat shrinkable tube 20 can be sleeved outside the first connection end 22 to achieve a better insulation effect and can more effectively increase the air gap and creepage distance.

[0032] A part of the first insulating layer 4 extends out of the first rubber core 1 and is close to the first contact end 21, and a part of the first insulating layer 4 can be located inside the first rubber core 1, which can more effectively increase the air gap and creepage distance. A part of the second insulating layer 5 extends out of the first rubber core 1 and is close to the first connection end 22, and a part of the second insulating layer 5 can be located inside the first rubber core 1, which can more effectively increase the air gap and creepage distance. As Figure 8 shown, preferably, the length L1 of the first insulating layer 4 is 7 mm to 11 mm, preferably 9 mm, and the thickness T1 of the first insulating layer 4 is 0.1 mm to 0.2 mm, preferably 0.15 mm. The first insulating layer 4 can form an optimal size and can more effectively increase the air gap and creepage distance. Preferably, the length L2 of the second insulating layer 5 is 7 mm to 11 mm, preferably 9 mm, and the thickness T2 of the second insulating layer 5 is 0.1 mm to 0.2 mm, preferably 0.15 mm. The second insulating layer 5 can form an optimal size and can more effectively increase the air gap and creepage distance.

[0033] The first outer housing 3 is arranged outside the first rubber core 1, and the first outer housing 3 can also surround the first contact end 21 and the first connection end 22 of the plurality of first terminals 2. The structure of the first outer housing 3 is not limited, so it will not be elaborated here.

[0034] Please refer to again Figure 6 and Figure 7 The second connector 200 includes a second plastic core 6, a plurality of second terminals 7, and a second housing 8. The second plastic core 6 is made of an insulating material such as plastic. Preferably, the second plastic core 6 is cylindrical. In this embodiment, the second plastic core 6 has a plurality of second fixing holes 61 which are arranged at intervals and extend to both ends of the second plastic core 6, and can be used to assemble the plurality of second terminals 7.

[0035] The plurality of second terminals 7 are made of a metal material with good conductivity such as copper. The plurality of second terminals 7 can also be each coated with a third insulating layer 9 in an insert mold manner to achieve the effect of increasing the air gap and creepage distance values. The third insulating layer 9 is made of an insulating material such as plastic. The third insulating layer 9 can be a liquid crystal polymer (LCP) material. The third insulating layer 9 covers a partial area of the second terminal 7. In this embodiment, the second terminal 7 is cylindrical, and the third insulating layer 9 is a hollow cylinder covering the outside of the second terminal 7.

[0036] The plurality of second terminals 7 are respectively fixed in the plurality of second fixing holes 61, so that the plurality of second terminals 7 are arranged on the second plastic core 6. Both ends of the plurality of second terminals 7 respectively form a second contact end 71 and a second connection end 72. The second contact end 71 is located inside the second plastic core 6. The second contact end 71 can be a female end. A jack 62 is formed near the second contact end 71 inside the second plastic core 6. The second connection end 72 can extend outside the second plastic core 6. The second contact end 71 is located at one end of the second terminal 7 facing the first connector 100. The second contact end 71 can be used to contact the terminal of the first connector 100, so that the first connector 100 and the second connector 200 are electrically connected. The second connection end 72 is located at one end of the second terminal 7 facing away from the first connector 100. The second connection end 72 can form a welding area for welding and connecting a second cable 30 (as Figure 9 shown), and after the second connection end 72 is welded to the second cable 30, a second heat shrinkable sleeve 40 can be sleeved outside the second connection end 72 to achieve a better insulation effect and can more effectively increase the air gap and creepage distance.

[0037] A part of the third insulating layer 9 extends out of the second plastic core 6 and is close to the second connection end 72, and a part of the third insulating layer 9 can be located inside the second plastic core 6, which can more effectively increase the air gap and creepage distance. As Figure 9As shown, preferably, the length L3 of the third insulating layer 9 is 7 mm to 11 mm, preferably 9 mm, and the thickness T3 of the third insulating layer 9 is 0.1 mm to 0.2 mm, preferably 0.15 mm. The third insulating layer 9 can form an optimal size, and thus can have a better air gap and creepage distance.

[0038] The second outer housing 8 is disposed outside the second rubber core 6. A slot 81 can be formed in the second outer housing 8 for one end of the first outer housing 3 to be inserted, so that the first connector 100 and the second connector 200 are stably joined. The structure of the second outer housing 8 is not limited, so it will not be elaborated herein.

[0039] When the first connector 100 and the second connector 200 are plugged into each other, the first contact ends 21 of the plurality of first terminals 2 respectively contact the second contact ends 71 of the plurality of second terminals 7, so that the first connector 100 and the second connector 200 achieve electrical connection. When the first connector 100 and the second connector 200 are plugged into each other, the first insulating layer 4 coated on the plurality of first terminals 2 can be inserted into the corresponding jacks 62, so that the first insulating layer 4 extends into the second rubber core 6, which can increase the air gap and creepage distance values between two adjacent first terminals 2. The second insulating layer 5 and the third insulating layer 9 are respectively coated on the rear sections of the first terminals 2 and the second terminals 7, so that the electrical connection device can achieve the effect of increasing the air gap and creepage distance values in all three regions. In this embodiment, the air gap and creepage distance in the mating area between the first connector 100 and the second connector 200 can reach 8.5 mm. The air gap and creepage distance in the welding areas of the first connector 100 and the second connector 200 can also reach 8.5 mm.

[0040] Advantages of the Embodiment

[0041] The beneficial effects of the present invention are as follows. The high withstand voltage electrical connection device provided by the present invention includes a first connector and a second connector. The first connector includes a first plastic core, a plurality of first terminals, and a first outer housing. Each of the plurality of first terminals is coated with a first insulating layer in an insert molding manner. The first insulating layer coats a partial area of the first terminal. The plurality of first terminals are disposed on the first plastic core. Two ends of each of the plurality of first terminals respectively form a first contact end and a first connection end. The first contact end extends out of the first plastic core. A part of the first insulating layer extends out of the first plastic core and is close to the first contact end. A part of the first insulating layer is located within the first plastic core. The second connector includes a second plastic core, a plurality of second terminals, and a second outer housing. The plurality of second terminals are disposed on the second plastic core. Two ends of each of the plurality of second terminals respectively form a second contact end and a second connection end. The second contact end is located within the second plastic core. A jack is formed at each position close to the second contact end within the second plastic core. When the first connector and the second connector are plugged into each other, the first contact ends of the plurality of first terminals respectively contact the second contact ends of the plurality of second terminals, so that the first connector and the second connector achieve electrical connection. Moreover, the first insulating layers coated on the plurality of first terminals can be inserted into the corresponding jacks, so that the plurality of first insulating layers can extend into the second plastic core. Thereby, the air gap and creepage distance values between adjacent terminals can be increased, so as to increase the withstand test voltage value, enabling the connector to achieve the effects of miniaturization, high density, and high withstand voltage.

[0042] Furthermore, each of the plurality of first terminals is coated with a second insulating layer in an insert molding manner. The second insulating layer coats a partial area of the first terminal. A part of the second insulating layer extends out of the first plastic core and is close to the first connection end. A part of the second insulating layer is located within the first plastic core. Each of the plurality of second terminals is coated with a third insulating layer in an insert molding manner. The third insulating layer coats a partial area of the second terminal. A part of the third insulating layer extends out of the second plastic core and is close to the second connection end. A part of the third insulating layer is located within the second plastic core. Thereby, the effects of increasing the air gap and creepage distance values can be achieved in multiple areas of the electrical connection device.

[0043] The above are only the preferred embodiments of the present invention, and are not intended to limit the patent protection scope of the present invention. Therefore, all equivalent changes made by using the content of the specification and drawings of the present invention are equally included in the protection scope of the present invention, and are hereby stated.

Claims

1. A high withstand voltage electrical connection device, characterized in that, it includes: A first connector, comprising a first rubber core, a plurality of first terminals and a first outer housing. Each of the plurality of first terminals is coated with a first insulating layer in an insert molding manner. The first insulating layer coats a partial area of the first terminal. The plurality of first terminals are arranged on the first rubber core. Both ends of the plurality of first terminals respectively form a first contact end and a first connection end. The first contact end extends out of the first rubber core. The first insulating layer partially extends out of the first rubber core and is close to the first contact end. The first insulating layer is partially located within the first rubber core. The first outer housing is arranged outside the first rubber core; and A second connector, comprising a second rubber core, a plurality of second terminals and a second outer housing. The plurality of second terminals are arranged on the second rubber core. Both ends of the plurality of second terminals respectively form a second contact end and a second connection end. The second contact end is located within the second rubber core. A jack is formed at each position close to the second contact end within the second rubber core. The second outer housing is arranged outside the second rubber core; wherein, when the first connector and the second connector are plugged into each other, the first contact ends of the plurality of first terminals respectively contact the second contact ends of the plurality of second terminals, so that the first connector and the second connector achieve electrical connection, and the first insulating layers coated on the plurality of first terminals can be inserted into the relative jacks, so that the plurality of first insulating layers can extend into the second rubber core.

2. The high withstand voltage electrical connection device according to claim 1, characterized in that, each of the plurality of first terminals is coated with a second insulating layer in an insert molding manner. The second insulating layer coats a partial area of the first terminal. The second insulating layer partially extends out of the first rubber core and is close to the first connection end. The second insulating layer is partially located within the first rubber core.

3. The high withstand voltage electrical connection device according to claim 2, characterized in that, the length of the second insulating layer is 7 mm to 11 mm, and the thickness of the second insulating layer is 0.1 mm to 0.2 mm.

4. The high withstand voltage electrical connection device according to claim 2, characterized in that, the first terminal is in a cylindrical shape, the first insulating layer is in a hollow cylindrical shape and coats the outside of the first terminal, and the second insulating layer is in a hollow cylindrical shape and coats the outside of the first terminal.

5. The high withstand voltage electrical connection device according to claim 1, characterized in that, the length of the first insulating layer is 7 mm to 11 mm, and the thickness of the first insulating layer is 0.1 mm to 0.2 mm.

6. The high withstand voltage electrical connection device according to claim 1, characterized in that, each of the plurality of second terminals is coated with a third insulating layer in an insert molding manner. The third insulating layer coats a partial area of the second terminal. The third insulating layer partially extends out of the second rubber core and is close to the second connection end. The third insulating layer is partially located within the second rubber core.

7. The high withstand voltage electrical connection device according to claim 6, characterized in that, The length of the third insulating layer is 7 mm to 11 mm, and the thickness of the third insulating layer is 0.1 mm to 0.2 mm.

8. The high withstand voltage electrical connection device according to claim 6, wherein, the second terminal is in a cylindrical shape, and the third insulating layer is in a hollow cylindrical shape and covers the outside of the second terminal.

9. The high withstand voltage electrical connection device according to claim 1, wherein, the first connection end extends out of the first rubber core, the first connection end is welded to connect a first cable, and a first heat shrinkable tube is sleeved outside the first connection end.

10. The high withstand voltage electrical connection device according to claim 1, wherein, the second connection end extends out of the second rubber core, the second connection end is welded to connect a second cable, and a second heat shrinkable tube is sleeved outside the second connection end.

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