Integrated electric vehicle charging device

Abstract

The integrated electric vehicle charging device is compact in structure, good in heat dissipation performance and stable and reliable in operation and comprises a support, the support forms a first containing cavity and a second containing cavity which are separated up and down through a partition plate, the partition plate is provided with a heat exchange pipeline extending circuitously, and the heat exchange pipeline is provided with a first heat exchange pipe and a second heat exchange pipe. The heat exchange pipeline is provided with a water inlet connector and a water outlet connector which are exposed out of the first containing cavity. A PDU module, wherein the PDU module is assembled in the first accommodating cavity; the step-up and step-down module is arranged in the second accommodating cavity, and the step-up and step-down module comprises a Buck-Boost unit and a DCDC (Direct Current to Direct Current) unit; the Buck-Boost unit is provided with a first flow channel piece used for heat dissipation, and the Buck-Boost unit is provided with a first connector and a second connector which are communicated through the first flow channel piece. The DCDC unit is provided with a second flow channel used for heat dissipation, and the DCDC unit is provided with a third interface and a fourth interface which are communicated through the second flow channel. The invention relates to the technical field of electric vehicle charging.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle charging, and more specifically to an integrated electric vehicle charging device. Background Art

[0002] Electric vehicles have gradually become an important means of transportation due to their advantages such as environmental protection, energy saving and low noise.

[0003] At present, electric vehicle charging devices need to have a large power. When running at high power, they generate a lot of heat, and there is a lack of effective heat dissipation mechanism to dissipate the heat, resulting in a decrease in charging power and failing to meet usage requirements.

[0004] The existing charging device is relatively large in size and requires a lot of space when installed in a car with relatively cramped space. In addition, the main electrical components of the charging device are generally installed in the internal space of its shell. There is a lack of effective isolation measures between the electrical components, and the reliability is low during long-term use. Summary of the invention

[0005] In view of the shortcomings and defects of the prior art, an integrated electric vehicle charging device is provided which has a compact structure, good heat dissipation performance, and stable and reliable operation.

[0006] An integrated electric vehicle charging device, comprising:

[0007] The bracket is formed with a first accommodating cavity and a second accommodating cavity separated from each other by a spacer plate.

[0008] The partition plate is provided with a heat exchange pipe extending in a circuitous manner, and the heat exchange pipe is provided with a water inlet interface and a water outlet interface exposed from the first accommodating cavity;

[0009] A PDU module, wherein the PDU module is assembled in the first accommodating cavity;

[0010] A buck-boost module, which is disposed in the second accommodating cavity and includes a Buck-Boost unit and a DCDC unit;

[0011] The Buck-Boost unit is provided with a first flow channel member for heat dissipation, and the Buck-Boost unit is provided with a first interface and a second interface connected through the first flow channel member;

[0012] The DCDC unit is provided with a second flow channel for heat dissipation, and the DCDC unit is provided with a third interface and a fourth interface connected through the second flow channel;

[0013] The bracket is provided with a water inlet pipe and a water outlet pipe, and the water inlet pipe is provided with a water supply interface exposed from the second accommodating chamber, and the water outlet pipe is provided with a drainage interface exposed from the second accommodating chamber;

[0014] The first interface is connected to the water supply interface, the second interface is connected to the water inlet interface, the third interface is connected to the water outlet interface, and the fourth interface is connected to the drainage interface.

[0015] After adopting the above structure, the integrated electric vehicle charging device of the present invention has the following advantages compared with the prior art:

[0016] By placing the PDU module and the buck-boost module in two upper and lower separated accommodating chambers respectively, the space is effectively utilized, making the entire device more compact, and the partition board realizes the physical separation between the main functional modules, reducing the interference between them and improving the operation reliability.

[0017] The heat exchange pipes provided on the bracket can effectively take away the heat generated by the PDU module and the step-up and step-down modules for heat dissipation, thereby maintaining the stability and reliability of the equipment during long-term operation.

[0018] The Buck-Boost unit and the DCDC unit are each provided with a dedicated flow channel and are connected with the heat exchange flow channel after assembly. The heat exchange medium passes through the water inlet pipe, the water supply interface, the first interface, the first flow channel component, the second interface, the water inlet interface, the heat exchange flow channel, the water outlet interface, the third interface, the second flow channel, the fourth interface and the water outlet pipe in sequence, forming a water circulation system, reducing costs and energy consumption, and improving the heat dissipation efficiency of key units.

[0019] As an improvement of the present invention, the Buck-Boost unit includes a first main control component and an inductor component, the first main control component is installed in the accommodation space inside the first mounting seat, and the first interface and the second interface are arranged on both sides of the first mounting seat;

[0020] The first flow channel member spans across the opening of the accommodating space, and the inner side of the first flow channel member is in contact with the first main control component.

[0021] As an improvement of the present invention, the first main control component and the inductor component are arranged in a longitudinal direction in the second accommodating cavity.

[0022] The heat exchange channel is arranged on the partition plate corresponding to the upper end surface of the first main control component and the inductor component.

[0023] The heat exchange flow channel is extended in a circuitous manner forward and backward, so that the water inlet interface and the water outlet interface are both arranged on the front side of the second accommodating cavity.

[0024] As an improvement of the present invention, the region of the heat exchange channel corresponding to the inductor assembly is provided with evenly arranged spoilers.

[0025] As an improvement of the present invention, the DCDC unit includes a second main control component, and the second main control component is installed on a second mounting seat.

[0026] The second flow channel, the third interface and the fourth interface are all arranged on the second mounting seat, and the second flow channel is arranged to extend around the second main control component in a circuitous manner.

[0027] As an improvement of the present invention, the PDU module includes a relay unit and a fuse, wherein the relay unit is arranged in a first accommodating cavity on the left side of the heat exchange channel, and the fuse is arranged in a first accommodating cavity on the right side of the heat exchange channel, and the relay unit and the insulating seat are electrically connected through a copper busbar, and the copper busbar is arranged to cross the heat exchange channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 It is a schematic diagram of the structure of the parts of the present invention in an exploded state.

[0030] Figure 3 It is a schematic structural diagram of the support of the present invention.

[0031] Figure 4 It is a schematic diagram of the assembly position of the PDU module of the present invention.

[0032] Figure 5 It is a schematic diagram of the assembly position of the buck-boost module of the present invention.

[0033] Figure 6 The schematic diagram of the assembly of the buck-boost module and the bracket of the present invention is shown in FIG. Figure 1 .

[0034] Figure 7 The schematic diagram of the assembly of the buck-boost module and the bracket of the present invention is shown in FIG. Figure 2 .

[0035] Figure 8 It is a schematic diagram of the structure of the first main control component of the present invention when the parts are in an exploded state.

[0036] Fig. 9 It is a structural schematic diagram of the first mounting base of the present invention.

[0037] Fig.10 It is a schematic structural diagram of the first flow channel component of the present invention.

[0038] Fig.11It is a structural schematic diagram of the DCDC unit of the present invention in a state where components are exploded.

[0039] Fig.12 It is a schematic diagram of the second flow channel structure of the DCDC unit of the present invention.

[0040] As shown in the figure: 1. Bracket; 1.1. First accommodating chamber; 1.2. Second accommodating chamber; 1.3. Heat exchange channel; 1.31. Water inlet interface; 1.32. Water outlet interface; 1.33. Spoiler; 1.4. Water inlet pipe; 1.41. Water supply interface; 1.5. Water outlet pipe; 1.51. Drain interface; 1.6. Partition plate; 2. PDU module; 2.1. Relay unit; 2.2. Fuse; 3. Step-up and step-down module; 3.1. Buck-Bo ost unit; 3.11, first flow channel component; 3.12, first interface; 3.13, second interface; 3.14, first main control component; 3.15, inductor component; 3.16, first mounting seat; 3.17, baffle; 3.2, DCDC unit; 3.21, second flow channel; 3.22, third interface; 3.23, fourth interface; 3.24, second main control component; 3.25, second mounting seat; 4, cover plate; 5, electrical connector; 6, copper busbar. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0042] See also Figure 1-12 As shown, an integrated electric vehicle charging device includes:

[0043] The bracket 1 is formed with a first accommodating chamber 1.1 and a second accommodating chamber 1.2 separated from each other by a partition plate 1.6.

[0044] The partition plate 1.6 is provided with a circuitously extending heat exchange pipe, and the heat exchange pipe is provided with a water inlet interface 1.31 and a water outlet interface 1.32 exposed from the first accommodating chamber 1.1;

[0045] A PDU module 2, wherein the PDU module 2 is assembled in the first accommodating cavity 1.1;

[0046] A buck-boost module 3, wherein the buck-boost module 3 is disposed in the second accommodating chamber 1.2, and the buck-boost module 3 includes a Buck-Boost unit 3.1 and a DCDC unit 3.2;

[0047] The Buck-Boost unit 3.1 is provided with a first flow channel member 3.11 for heat dissipation, and the Buck-Boost unit 3.1 is provided with a first interface 3.12 and a second interface 3.13 connected through the first flow channel member 3.11;

[0048] The DCDC unit 3.2 is provided with a second flow channel 3.21 for heat dissipation, and the DCDC unit 3.2 is provided with a third interface 3.22 and a fourth interface 3.23 connected through the second flow channel 3.21;

[0049] The bracket 1 is provided with a water inlet pipe 1.4 and a water outlet pipe 1.5, and the water inlet pipe 1.4 is provided with a water supply interface 1.41 exposed from the second accommodating chamber 1.2, and the water outlet pipe 1.5 is provided with a drainage interface 1.51 exposed from the second accommodating chamber 1.2;

[0050] The first interface 3.12 is connected to the water supply interface 1.41, the second interface 3.13 is connected to the water inlet interface 1.31, the third interface 3.22 is connected to the water outlet interface 1.32, and the fourth interface 3.23 is connected to the drainage interface 1.51.

[0051] After adopting the above structure, the integrated electric vehicle charging device of the present invention has the following advantages compared with the prior art:

[0052] By placing the PDU module 2 and the buck-boost module 3 in two upper and lower separated accommodating chambers respectively, the space is effectively utilized, making the entire device more compact, and the partition board 1.6 realizes the physical separation between the main functional modules, reduces the interference between them, and improves the operation reliability.

[0053] The heat exchange pipe provided on the bracket 1 can effectively take away the heat generated by the PDU module 2 and the buck-boost module 3 for heat dissipation, thereby maintaining the stability and reliability of the equipment during long-term operation.

[0054] The Buck-Boost unit 3.1 and the DCDC unit 3.2 are each provided with a dedicated flow channel and are connected with the heat exchange flow channel 1.3 after assembly. The heat exchange medium passes through the water inlet pipe 1.4, the water supply interface 1.41, the first interface 3.12, the first flow channel member 3.11, the second interface 3.13, the water inlet interface 1.31, the heat exchange flow channel 1.3, the water outlet interface 1.32, the third interface 3.22, the second flow channel 3.21, the fourth interface 3.23 and the water outlet pipe 1.5 in sequence, forming a water circulation system, reducing costs and energy consumption, and improving the heat dissipation efficiency of key units.

[0055] As an improvement of the present invention, the Buck-Boost unit 3.1 includes a first main control component 3.14 and an inductor component 3.15, the first main control component 3.14 is installed in the accommodation space inside the first mounting seat 3.16, and the first interface 3.12 and the second interface 3.13 are arranged on both sides of the first mounting seat 3.16;

[0056] The first flow channel member 3.11 spans across the opening of the accommodating space, and the inner side of the first flow channel member is in contact with the first main control assembly 3.14.

[0057] By setting an accommodating space inside the first mounting seat 3.16, the first main control component 3.14 is assembled in the accommodating space.

[0058] The first flow channel member 3.11 is a hollow tubular structure, and has two connection ports. The first flow channel member 3.11 is detachably connected to the first mounting seat 3.16. After the connection is completed, the two connection ports of the first flow channel member 3.11 are connected to the first interface 3.12 and the second interface 3.13 to achieve communication;

[0059] The inner side of the first flow channel member 3.11 is designed to fit the first main control component 3.14, which can more effectively guide the heat to dissipate from around the first main control component 3.14, thereby improving the heat dissipation efficiency.

[0060] A first circuit board is also arranged on the first mounting seat 3.16. The first circuit board is located outside the first flow channel member 3.11. The first flow channel member can also dissipate heat for the first circuit board, so that the device can operate more stably.

[0061] The first circuit board is electrically connected to the first main control component 3.14 and the inductor component 3.15 through a conductive member.

[0062] When performing maintenance or replacement, it can be more convenient and quicker without the need to disassemble the entire PDU on a large scale.

[0063] As an improvement of the present invention, the first main control component 3.14 and the inductor component 3.15 are arranged in a longitudinal direction in the second accommodating cavity 1.2.

[0064] The upper end surface of the heat exchange channel 1.3 corresponding to the first main control component 3.14 and the inductor component 3.15 is arranged on the partition plate 1.6.

[0065] The heat exchange channel 1.3 is extended in a circuitous manner forward and backward, so that the water inlet interface 1.31 and the water outlet interface 1.32 are both arranged at the front side of the second accommodating chamber 1.2.

[0066] The middle area at the bottom of the partition plate 1.6 is recessed upward, which increases the internal space of the middle area of ​​the second accommodating cavity 1.2, thereby being able to accommodate the first main control component 3.14 and the inductor component 3.15 with a larger volume. The first main control component 3.14 and the inductor component 3.15 are arranged front to back, which has a more reasonable structural layout and higher space utilization.

[0067] The first main control component 3.14 and the inductor component 3.15 are installed in the middle area of ​​the second accommodating chamber 1.2, and the heat exchange channel 1.3 is set in the middle area at the bottom of the partition plate 1.6, and the position corresponds to the upper end surface of the first main control component 3.14 and the inductor component 3.15. The heat exchange channel 1.3 extends back and forth in a circuitous manner, and the contact time with the first main control component 3.14 and the inductor component 3.15 area is longer, so that the heat exchange channel 1.3 has better heat dissipation efficiency, can more effectively absorb the heat generated by these components, avoid local overheating, and extend the life of the components.

[0068] Since the water inlet interface 1.31 and the water outlet interface 1.32 are both arranged at the front side of the second accommodating chamber 1.2, the first interface 3.12 and the second interface 3.13 are both arranged on the first mounting seat 3.16, which facilitates the docking between the interfaces and makes installation and disassembly simple.

[0069] As an improvement of the present invention, the region of the heat exchange channel 1.3 corresponding to the inductor component 3.15 is provided with evenly arranged spoilers 1.33.

[0070] The spoiler 1.33 is arranged in the detour area of ​​the heat exchange flow channel 1.3. The spoiler 1.33 can destroy the laminar flow state of the fluid, causing turbulence in the fluid. At the same time, it cooperates with the flow channel in the detour area to further increase the turbulence of the fluid, thereby improving the heat exchange efficiency and allowing the heat of the inductor component 3.15 to be taken away more effectively.

[0071] As an improvement of the present invention, the DCDC unit 3.2 includes a second main control component 3.24, and the second main control component 3.24 is mounted on a second mounting seat 3.25.

[0072] The second flow channel 3.21, the third interface 3.22 and the fourth interface 3.23 are all arranged on the second mounting seat 3.25, and the second flow channel 3.21 is arranged to extend around the second main control component 3.24 in a circuitous manner.

[0073] The second flow channel 3.21 extends around the second main control component 3.24 in a circuitous manner, which can more effectively absorb and take away heat, thereby improving the heat dissipation efficiency.

[0074] The second main control assembly 3.24 is mounted on the second mounting seat 3.25, and the second mounting seat 3.25 is mounted on the right side of the second accommodating cavity 1.2, and the heat dissipation channel and the interface are arranged on the mounting seat, which helps to reduce the overall volume and make the structure more compact.

[0075] Since the second flow channel 3.21 is designed to extend around the second main control component 3.24 in a circuitous manner, continuous heat exchange between the medium and the second main control component 3.24 can be achieved, thereby avoiding local overheating and improving heat dissipation uniformity.

[0076] The second main control assembly 3.24 is mounted on the second mounting seat 3.25, and the heat dissipation channel and the interface are arranged on the mounting seat, which helps to reduce the overall volume and make the structure more compact. At the same time, it has the characteristics of easy replacement and maintenance.

[0077] As an improvement of the present invention, the PDU module 2 includes a relay unit 2.1 and a fuse 2.2, wherein the relay unit 2.1 is arranged in the first accommodating cavity 1.1 on the left side of the heat exchange channel 1.3, and the fuse 2.2 is arranged in the first accommodating cavity 1.1 on the right side of the heat exchange channel 1.3, and the relay unit 2.1 is electrically connected to the insulating seat through a copper busbar 6, and the copper busbar 6 is arranged to cross the heat exchange channel 1.3.

[0078] The partition plate 1.6 with a middle area that is concave upwards divides the first accommodating cavity 1.1 into a left-right separated structure;

[0079] The relay unit 2.1 is arranged in the first accommodating cavity 1.1 on the left, and the fuse 2.2 is arranged in the first accommodating cavity 1.1 on the right. The relay unit 2.1 is electrically connected to the insulating seat through the copper busbar 6. The copper busbar 6 passes over the upwardly concave part of the partition plate 1.6. The relay unit 2.1 and the fuse 2.2 avoid the buck-boost module 3 in space, optimize the spatial layout, further improve the compactness of the structure, and at the same time, avoid thermal interference between the relay unit 2.1 and the fuse 2.2.

[0080] The relay unit 2.1 and the fuse 2.2 each require more wiring, so they are respectively installed in the first accommodating chamber 1.1 separated on the left and right. The two can be isolated in the first accommodating chamber 1.1 to avoid interference between the two and improve safety.

[0081] The copper bar 6 is arranged to pass over the heat exchange channel 1.3 and fits over the winding part of the heat exchange channel 1.3. The heat exchange channel 1.3 is used again to exchange heat with the copper bar 6, which can improve the stability and conductivity of the electrical connection and reduce energy loss.

[0082] A detachable electrical connector 5 is also provided on the side of the bracket 1, and the electrical connector 5 is electrically connected to the PDU module 2 in the first accommodating cavity 1.1 and the buck-boost module 3 in the second accommodating cavity 1.2.

[0083] The first accommodating chamber 1.1 is open upward, and the second accommodating chamber 1.2 is open downward, and both are detachably connected with a cover plate 4, which is convenient for disassembly and assembly of internal electrical components.

[0084] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An integrated electric vehicle charging device, characterized in that: include: A bracket (1), wherein the bracket (1) forms a first accommodating chamber (1.1) and a second accommodating chamber (1.2) separated from each other by a partition plate (1.6), The partition plate (1.6) is provided with a heat exchange pipe extending in a circuitous manner, and the heat exchange pipe is provided with a water inlet interface (1.31) and a water outlet interface (1.32) exposed from the first accommodating chamber (1.1); A PDU module (2), the PDU module (2) being assembled in the first accommodating cavity (1.1); A buck-boost module (3), the buck-boost module (3) being arranged in the second accommodating chamber (1.2), the buck-boost module (3) comprising a Buck-Boost unit (3.1) and a DCDC unit (3.2); The Buck-Boost unit (3.1) is provided with a first flow channel component (3.11) for heat dissipation, and the Buck-Boost unit (3.1) is provided with a first interface (3.12) and a second interface (3.13) which are connected through the first flow channel component (3.11); The DCDC unit (3.2) is provided with a second flow channel (3.21) for heat dissipation, and the DCDC unit (3.2) is provided with a third interface (3.22) and a fourth interface (3.23) which are connected through the second flow channel (3.21); The bracket (1) is provided with a water inlet pipe (1.4) and a water outlet pipe (1.5), and the water inlet pipe (1.4) is provided with a water supply interface (1.41) exposed from the second accommodating chamber (1.2), and the water outlet pipe (1.5) is provided with a drainage interface (1.51) exposed from the second accommodating chamber (1.2); The first interface (3.12) is connected to the water supply interface (1.41), the second interface (3.13) is connected to the water inlet interface (1.31), the third interface (3.22) is connected to the water outlet interface (1.32), and the fourth interface (3.23) is connected to the drainage interface (1.51).

2. The integrated electric vehicle charging device according to claim 1, characterized in that: The Buck-Boost unit (3.1) comprises a first main control component (3.14) and an inductor component (3.15), the first main control component (3.14) being mounted in a containing space inside a first mounting seat (3.16), and the first interface (3.12) and the second interface (3.13) being arranged on both sides of the first mounting seat (3.16); The first flow channel component (3.11) spans across the opening of the accommodating space, and the inner side of the first flow channel component is in contact with the first main control component (3.14).

3. The integrated electric vehicle charging device according to claim 2, characterized in that: The first main control component (3.14) and the inductor component (3.15) are arranged in a longitudinal direction in the second accommodating cavity (1.2). The upper end surfaces of the heat exchange flow channel (1.3) corresponding to the first main control component (3.14) and the inductor component (3.15) are arranged on the partition plate (1.6). Furthermore, the heat exchange flow channel (1.3) is extended in a circuitous manner forward and backward, so that the water inlet interface (1.31) and the water outlet interface (1.32) are both arranged on the front side of the second accommodating chamber (1.2).

4. The integrated electric vehicle charging device according to claim 3 is characterized in that: The area of ​​the heat exchange flow channel (1.3) corresponding to the inductor component (3.15) is provided with evenly arranged spoiler portions (1.33).

5. The integrated electric vehicle charging device according to claim 1, characterized in that: The DCDC unit (3.2) comprises a second main control component (3.24), wherein the second main control component (3.24) is mounted on a second mounting seat (3.25). The second flow channel (3.21), the third interface (3.22) and the fourth interface (3.23) are all arranged on the second mounting seat (3.25), and the second flow channel (3.21) is arranged to extend in a circuitous manner around the second main control component (3.24).

6. The integrated electric vehicle charging device according to claim 3, characterized in that: The PDU module (2) comprises a relay unit (2.1) and a fuse (2.2), wherein the relay unit (2.1) is arranged in a first accommodating chamber (1.1) on the left side of the heat exchange channel (1.3), and the fuse (2.2) is arranged in a first accommodating chamber (1.1) on the right side of the heat exchange channel (1.3), and the relay unit (2.1) is electrically connected to the insulating seat via a copper busbar (6), and the copper busbar (6) is arranged to pass over the heat exchange channel (1.3).

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