Power connector

Abstract

The invention relates to an electric power connector which comprises an insulation body, two electric power assemblies and two heat dissipation devices 40, the insulation body is provided with a butt joint groove penetrating forwards, and the two electric power assemblies are arranged on the two transverse sides of the butt joint groove respectively. Each electric power assembly comprises a contact part which protrudes forwards into the butt joint groove and an electric power extension line which extends backwards out of the insulation body. Each heat dissipation device 40 is directly attached to the surface 201 of the corresponding power assembly 20A. Compared with the prior art, the heat dissipation module is directly attached to the surface of the power assembly, heat can be quickly dissipated, and therefore the heat dissipation capacity is improved, and the temperature rise problem of large current is solved.

Description

Technical Field

[0001] The present application relates to a power connector capable of transmitting large current. Background Art

[0002] Prior art Chinese invention patent CN116137395A discloses a power connector for contacting an elongated DC power distribution bus and a method for monitoring such a connection, wherein the power terminal is composed of a first and a second spring contact assembly, and a temperature rise is inevitable due to the transmission of a large current, so a temperature sensor is added to record the temperature rise at a very early stage of electrical contact deterioration. However, it does not really solve the problem of temperature rise.

[0003] Thus, it is desirable to design a power connector that improves temperature rise. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a power connector which can improve the temperature rise problem.

[0005] In order to solve the above problems, the present invention can adopt the following technical solutions: an electric power connector, comprising an insulating body, two electric power components and two heat dissipation devices, the insulating body being provided with a docking groove penetrating forward, the two electric power components being respectively arranged on the lateral sides of the docking groove, each of the electric power components comprising a contact portion protruding forward into the docking groove and an electric power extension line extending backward out of the insulating body; each of the heat dissipation devices is directly attached to the surface of the corresponding electric power component.

[0006] Compared with the prior art, the heat dissipation module of the present invention is directly attached to the surface of the power component, which can quickly dissipate heat, thereby increasing the heat dissipation capacity and improving the temperature rise problem of large current. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a plan view of the power connector of the present invention before being connected to the power distribution busbar.

[0008] Figure 2 is along Figure 1 Cross-sectional view along dashed line AA.

[0009] Figure 3 yes Figure 1 A perspective view of a power connector.

[0010] Figure 4 yes Figure 3 Another perspective view of the power connector with the faceplate removed.

[0011] Figure 5 yes Figure 4 Exploded perspective view of a power connector with one of the grounding components removed.

[0012] Figure 6 yes Figure 4 Exploded view of the power connector with one of the heat sink modules removed.

[0013] Figure 7 yes Figure 6 A stereogram from another angle.

[0014] Figure 8 yes Figure 6 A three-dimensional view of the insulating body.

[0015] Fig. 9 yes Figure 6 A three-dimensional diagram of the two power components and the heat sink.

[0016] Fig.10 yes Fig. 9 A three-dimensional diagram of a power component and heat sink.

[0017] Fig.11 yes Fig.10 A stereogram from another angle.

[0018] Fig.12 yes Fig.11 A three-dimensional view of the first terminal piece in FIG.

[0019] Fig.13 yes Fig.11 A three-dimensional view of the second terminal piece in FIG.

[0020] Fig.14 yes Fig.11 A three-dimensional view of the third terminal piece in FIG.

[0021] Fig.15 yes Fig.11 A three-dimensional view of the fourth terminal piece in FIG.

[0022] Description of main component symbols: Power connector 100 Insulating body 10 Docking slot 11 Docking portion 12 Base 13 Mounting portion 14 Notch 141 Heat dissipation hole 16 Receiving slot 151 Fixing slot 152 Power assembly 20A Power terminal 20 Surface 201 Contact portion 21 Elastic arm 22 Plate portion 23 Reinforcement member 24 Clamping ear piece 241 First terminal piece 25 Contact portion 251 Second terminal piece 26 Contact portion 261 Opening 282 Third terminal piece 27 Contact portion 271 Fourth terminal piece 28 Contact portion 281 Opening 282 Power extension cord 30 Front end 301 Insulating jacket 31 Conductive plate 32 Heat dissipation device 40 Through hole 41 Grounding member 51 Base 511 Elastic arm 512 Panel 52 Heat dissipation hole 521 Nut assembly 53 Bolt 531 Nut 532 Washer 533 Elastic ring 534 Power distribution bus 200 Plug 91 positive and negative conductors 911 insulating strip 912.

[0023] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0025] The present invention is a power connector that can transmit large currents. In a specific embodiment, it is a power connector 100 for a DC power distribution bus, or bus bar as the industry calls it. Figure 1 As shown, the power connector 100 is used to dock with the distribution bus 200 to transmit large current. The distribution bus 200 includes a plug 91, and the plug 91 includes positive and negative conductors 911 and an insulating strip 912 supporting the positive and negative conductors. The positive and negative conductors are respectively buried in two opposite sides of the insulating strip. The power connector 100 can be installed on a circuit board or an electronic device. When the plug 91 is inserted into the docking slot 11 provided in the power connector 100, the power terminals 20 located on both sides of the docking slot 11 contact the positive and negative conductors respectively, and transmit the current to other electronic components through the power extension line 30 at its rear end, thereby realizing large current transmission. In addition to penetrating forward, the docking slot 11 also penetrates in the up and down directions, so as to facilitate the extension of the slender plug 91.

[0026] Ginseng Figure 3-6As shown, the power connector 10 includes an insulating body 10, two power components 20A and two heat sinks 40. The insulating body is provided with a docking slot 11 extending forward, and the two power components are respectively arranged on both sides of the docking slot 11. Each power component 20A includes a contact portion 21 protruding forward into the docking slot 11 and a power extension line 30 extending backward from the insulating body. Each heat sink 40 is directly attached to a surface 201 of the corresponding power component 20A. Figure 6 In this embodiment, the direction of insertion of the plug 91 is defined as the front-to-back direction, the direction at the front end of the insertion is the front direction, and the direction perpendicular to the side walls of the docking slot is the lateral direction (i.e. Figure 3 The left and right directions are shown in the figure), and the direction perpendicular to the front-to-back direction and the lateral direction is the lateral direction. The two contact portions 21 are respectively located on the lateral sides of the docking groove 11. The heat dissipation device 40 is directly attached to the surface 201 of the power component, which can directly dissipate the heat generated by the power component to achieve the effect of rapid heat dissipation, avoid excessive temperature rise of the terminal component, and improve the temperature rise problem of large current. The insulating body 10 is further provided with a plurality of heat dissipation holes 16 to increase the heat dissipation capacity. A pair of grounding members 51 are arranged at the front end of the insulating body 10, and a panel 52 is installed at the front end of the insulating body. The panel is provided with a plurality of heat dissipation holes 521 to increase the heat dissipation capacity.

[0027] Ginseng Figure 8-9 As shown, the insulating body 10 includes a base 13, a docking portion 12 extending forward from the base, and a mounting portion 14 extending backward from the base. The docking slot 11 is provided at the docking portion 12. Two lateral outer sides of the mounting portion 14 are provided with notches 141. The power component 20A is at least partially exposed in the notches 141. The heat dissipation device 40 is attached to the surface of the power component 20A corresponding to the notches 141. The insulating body 10 is provided with two receiving slots 151 located behind the docking slot 11. The two receiving slots 151 are insulated and separated from each other. Two opposite wall surfaces of each receiving slot are provided with fixing slots 152. The fixing slots 151 are located on the upper and lower inner surfaces of the receiving slot. The power component 20A passes through and is received in the receiving slot 151. The two sides of the electronic component are interference-fixed in the fixing slots 152. The receiving slots penetrate outward in the lateral direction. In this embodiment, the notch 141 extends forward to the rear end surface of the base 13, penetrates the rear end surface of the mounting portion 14, and also extends laterally to the upper and lower surfaces close to the mounting portion. It can be seen that the receiving groove 15 is completely open in the lateral direction, which can not only increase the heat dissipation space, but also provide space to expose the power component, thereby facilitating the installation of the heat dissipation device. It can be seen that the heat dissipation device 40 is completely attached to the surface 201 of the power component to achieve as much heat transfer as possible. Figure 4-5At the same time, the docking portion 12 is provided with a plurality of heat dissipation holes 16, which can transfer the heat generated by the contact portion 21 to the air as quickly as possible through the heat dissipation holes 16. The base 13 and the mounting portion 14 are also provided with a plurality of heat dissipation holes 16, which can transfer the heat of other parts of the power component 20A. The heat dissipation holes 16 provided in the mounting portion are connected to the fixing grooves 152 in the vertical direction, so as to transfer the heat generated by the side of the power component. In the design, since the docking portion 12 cannot be placed with a heat dissipation device, and the notch 141 can expose part of the power component, the heat dissipation device 40 can be set at the notch, so that it can be as close to the contact portion 21 as possible, and the heat generated by the part with the fastest temperature rise can be transferred out in time.

[0028] Ginseng Figure 9-10 As shown, in this embodiment, each power component 20A includes a power terminal 20 and a power extension line 30. The power terminal 20 includes a plate-shaped portion 23 and an elastic arm 22 extending forward from the plate-shaped portion. The contact portion 21 is arranged on the front end of the elastic arm 22. The plate-shaped portion 23 is exposed in the notch 141. The front end 301 of the power extension line 30 is attached to the outside of the notch 141 and connected to the plate-shaped portion 23. The heat sink 40 is attached to the outer surface of the portion of the power extension line 30 corresponding to the plate-shaped portion 23. In a specific embodiment, the power extension line 30 is a conductive longitudinal plate, and its front end 301 is directly attached to the plate-shaped portion 23, or another conductive plate 32 is sandwiched between its front end and the plate-shaped portion 23. The conductive longitudinal plate can be made of a copper plate or an aluminum plate, and an insulating jacket 31 for protection is provided on its outer side. In other embodiments, the power extension line 30 can be a cable, and its front end is flattened by ultrasonic welding, and its flat surface can be attached to the heat sink 40. In other embodiments, if the power extension cord 30 is attached to the inner surface of the plate-shaped portion 23 , the heat dissipation device is attached to the outer surface of the plate-shaped portion 23 to achieve the function of rapid heat dissipation.

[0029] Ginseng Figure 2 and Figure 5-6As shown, in this embodiment, the front end 301 of the power extension cord is fixed to the outer surface of the plate-shaped portion 23 of the power terminal 20, and the heat sink 40 is attached to the outer surface of the power extension cord 30, and then the plate-shaped portion 23 and the front end 301 of the power extension cord are fixed together by a plurality of nut assemblies 53. A reinforcing member 24 is fixed on the inner surface of the plate-shaped portion to form a whole, which is inserted into the receiving groove 151 from back to front, and the two side edges of the plate-shaped portion are interfered and fixed in the fixing groove 152, so that the power component 20A and the heat sink 40 are fixed to the insulating body, and the retaining ear piece 241 provided on the reinforcing member 24 is fixed in the insulating body to avoid the risk of the power component 20A being separated from the back. In this embodiment, four nut assemblies 53 are used to fix the heat sink to the power component, and the bolt 531 of each nut assembly 53 passes through the through hole 41 of the power component and the heat sink, and is fixed by the nut 532, and a washer 533 and an elastic ring 534 are also sleeved between the nut and the surface 201 of the power component.

[0030] Ginseng Figure 4-5 As shown, the base 13 protrudes laterally from the docking portion 12 and the mounting portion 14 to form a flange structure, the grounding member 51 is provided with a base 511 fixed to the front end surface of the base 13, and a plurality of elastic arms 512 extending from the grounding member are arranged on the lateral outer surface of the docking portion 12. A plurality of heat dissipation holes 16 penetrate the base 13 in the front-to-back direction, and a plurality of heat dissipation holes 16 penetrate the base 16 in the up-down direction at the same time. A plurality of heat dissipation holes 16 penetrate the upper and lower sides of the docking portion 12 in the up-down direction, and the panel 52 is installed on the front end surface of the base 12, and the panel is also provided with a plurality of heat dissipation holes 521.

[0031] Ginseng Figure 11-15 As shown, in the present embodiment, each of the power terminals 20 comprises a first terminal piece 25, a second terminal piece 26, a third terminal piece 27 and a fourth terminal piece 28 which are stacked one on another in a lateral direction, the front end of the contact portion 251 at the front end of the first terminal piece is accommodated in an opening 262 opened in the contact portion 261 at the front end of the second terminal piece, the front end of the contact portion 271 at the front end of the third terminal piece is accommodated in an opening 282 opened in the contact portion 281 at the front end of the fourth terminal piece, the openings 262, 282 provide deformation space for the contact portions of the first and third terminal pieces, and at the same time, the contact portions of the second and fourth terminal pieces are divided into two parts due to the openings, thereby forming a parallel effect, thereby providing sufficient conductors for large currents to pass through.

[0032] In summary, the above are only preferred embodiments of the present invention and should not be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the claims and description of the present invention should still fall within the scope of the patent of the present invention.

Claims

1. An electric power connector, comprising an insulating body, two electric power components and two heat dissipation devices, wherein the insulating body is provided with a docking slot extending forward, the two electric power components are respectively arranged on two lateral sides of the docking slot, and each of the electric power components comprises a contact portion protruding forward into the docking slot and an electric power extension line extending backward out of the insulating body; characterized in that: Each of the heat dissipation devices is directly attached to the surface of the corresponding power component.

2. The power connector according to claim 1, wherein: The insulating body includes a base, a docking portion extending forward from the base, and a mounting portion extending backward from the base, the docking groove is arranged on the docking portion, two lateral outer sides of the mounting portion are provided with notches, the power component is at least partially exposed in the notch, and the heat dissipation device corresponds to the notch.

3. The power connector according to claim 2, wherein: The notch extends forward to the rear end surface of the base portion and penetrates rearward through the rear end surface of the mounting portion.

4. The power connector according to claim 2, wherein: The base and the mounting portion are both provided with a plurality of heat dissipation holes.

5. The power connector according to claim 2, wherein: The butt joint is provided with a plurality of heat dissipation holes.

6. The power connector according to claim 2, wherein: Each of the power components includes a power terminal and a power extension cord, the electronic terminal includes a plate-like portion and an elastic arm extending forward from the plate-like portion, the contact portion is arranged at the front end of the elastic arm, the plate-like portion is exposed in the notch, the front end of the power extension cord is attached to the outside of the notch and connected to the plate-like portion, and the heat dissipation device is attached to the outer surface of the plate-like portion corresponding to the power extension cord.

7. The power connector according to claim 6, wherein: The power extension line is a conductive longitudinal plate, the front end of which is directly attached to the plate-shaped portion, or another conductive plate is clamped between the front end and the plate-shaped portion.

8. The power connector according to claim 6, wherein: A panel is installed at the front end of the base, and the panel is provided with a plurality of heat dissipation holes.

9. The power connector according to claim 1, wherein: The insulating body is provided with two receiving grooves located behind the docking groove, the two receiving grooves are insulated and separated from each other, and the two opposite walls of each receiving groove are provided with fixing grooves, the power component passes through and is received in the receiving groove, the two sides of the electronic component interfere and fix the fixing groove, and the receiving groove penetrates outward in the lateral direction.

10. The power connector according to claim 9, wherein: The insulating body is provided with a plurality of heat dissipation holes at locations corresponding to the fixing grooves.

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