New energy vehicle boost structure

Abstract

A new energy vehicle boost structure, comprising a housing (7), wherein a positive electrode loop and a negative electrode loop are arranged in the housing (7), and a cooling mechanism is arranged on the bottom surface of the housing (7). The cooling mechanism is used for cooling and heat dissipation of heating devices of the positive electrode loop and the negative electrode loop. The cooling mechanism comprises: a cooling cavity (701), which is provided on the bottom surface of the housing (7) and corresponds to the position of an inductor (4) in the positive electrode loop and the negative electrode loop; and a cooling cover plate (702), which is fixedly connected to the cooling cavity (701) and used for covering and sealing the cooling cavity (701).

Description

A boost structure for new energy vehicles Technical Field

[0001] The present invention belongs to the technical field of high-voltage fast charging of new energy electric vehicles, and in particular relates to a boost structure for new energy vehicles. Background Art

[0002] Currently, the output voltage of most charging stations for new energy vehicles is 220V, and the maximum output voltage of fast charging stations can only reach 750V. Furthermore, fast charging stations are relatively scarce, so most new energy vehicles are charged through slow charging, which takes as little as seven or eight hours and as much as more than ten hours, which does not meet the needs of many users. To meet the urgent industry needs of fast charging speeds and short charging times, and to achieve fast charging capabilities on slow charging stations, new energy vehicles need to add a voltage boosting function module.

[0003] Existing new energy vehicles (NEVs) charge slowly and take a long time to charge. Even with fast-charging capabilities, these vehicles simply increase the diameter of cables and copper busbars to improve overcurrent capacity. They still require high voltage from a charging station for fast charging and lack autonomous voltage boosting. This means that if owners can't find a charging station that provides high power and voltage, fast charging won't work. Furthermore, existing NEVs require a voltage boost module within the controller during charging, which generates significant heat in localized areas of the controller, necessitating a redesigned cooling system. Summary of the Invention

[0004] In order to solve at least one problem in the background technology, the present invention proposes a boost structure for a new energy vehicle.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A new energy vehicle boost structure, comprising:

[0007] The housing has a positive electrode circuit and a negative electrode circuit disposed therein, and a cooling mechanism disposed on the bottom surface;

[0008] The cooling mechanism is used to cool and dissipate heat from the heating components of the positive and negative circuits, and includes:

[0009] The cooling cavity is opened on the bottom surface of the shell, corresponding to the position of the inductor in the positive circuit and the negative circuit;

[0010] A cooling cover plate is fixedly connected to the cooling cavity and is used to cover and seal the cooling cavity;

[0011] Several symmetrically arranged water nozzle channels are opened on the side of the shell and communicated with the cooling cavity;

[0012] The isolation sheet is located inside the cooling cavity and on the symmetrical center line of the symmetrically arranged water nozzle channel, and one end of the isolation sheet is connected to the end of the cooling cavity close to the water nozzle channel;

[0013] A plurality of heat dissipation fins are arranged on both sides of the isolation plate, and the heat dissipation fins are shorter as they are farther away from the isolation plate;

[0014] The guide plate is located on the side of the isolation plate away from the water nozzle channel and is used to guide the coolant from the left radiating fin to the right radiating fin.

[0015] Preferably, the isolation plate is composed of a triangular plate connected to the end of the cooling cavity and a straight baffle connected to the corners of the triangular plate, and one side of the triangular plate is connected to the end cavity wall of the cooling cavity.

[0016] Preferably, the opening of the guide plate faces the heat dissipation fin, and the distance from the center line of the isolation plate to the center line of the second heat dissipation fin on the left or right side is equal to the radius of the guide plate.

[0017] Preferably, the outer wall of the housing is provided with a plurality of ports, and an inductor, a vertical relay, a fuse, a horizontal relay, an electromagnetic compatibility filter and a film capacitor are installed inside;

[0018] A high-voltage quick-connect plug-in is installed on an outer wall port of the housing for current output;

[0019] A high-voltage quick-plug socket is installed on an outer wall port of the housing for current input;

[0020] The positive circuit is connected in sequence to a high-voltage quick-connect socket, a fuse, a horizontal relay, an electromagnetic compatibility filter, a film capacitor, an inductor, a first vertical relay and a high-voltage quick-connect plug-in;

[0021] The negative electrode loop is connected in sequence to a high-voltage quick-plug socket, a fuse, a horizontal relay, an electromagnetic compatibility filter, a film capacitor, a second vertical relay and a high-voltage quick-plug plug-in.

[0022] Preferably, the shell is further connected to a first cover plate via bolts, and a second cover plate is mounted on the surface of the first cover plate.

[0023] Preferably, a shielding plate is installed on the top of the inductor, and a control PCB is installed on the surface of the shielding plate.

[0024] Preferably, a low-voltage signal plug-in is further included, which is installed on an outer wall port of the shell and is electrically connected to the control PCB board for transmitting the low-voltage signal generated by the control PCB board.

[0025] Preferably, a mounting seat is provided in the housing, and the mounting seat is used for mounting a fuse.

[0026] Preferably, the inductor comprises:

[0027] Two symmetrically arranged frames are equipped with iron cores;

[0028] The iron core is a waist-shaped structure, and the semicircular segments at both ends of the waist-shaped structure are respectively inserted into two symmetrically arranged frames;

[0029] A coil, wound around the straight line segment in the middle of the frame;

[0030] The outer shell is fixedly connected to the two symmetrically arranged frames;

[0031] Sealant, filled in the shell;

[0032] Wiring copper busbar, installed on the frame;

[0033] The temperature signal line is used to detect the temperature change of the inductor and transmit it to the control PCB board.

[0034] Preferably, the electromagnetic compatibility filter comprises:

[0035] The fixed base has an annular cavity at both ends for installing the filter magnetic ring;

[0036] The magnetic ring cover is installed at the opening of the annular cavity and is used to fix the filter magnetic ring;

[0037] Filter magnetic ring, used for filtering;

[0038] The current busbars, including a positive current busbar and a negative current busbar, are installed at the bottom of the fixed base;

[0039] X capacitor, connected to the positive current busbar and the negative current busbar through two pins respectively;

[0040] Two Y capacitors are provided and mounted on a fixed base, wherein the two pins of one Y capacitor are respectively used to connect the positive current busbar and the ground, and the two pins of the other Y capacitor are respectively used to connect the negative current busbar and the ground;

[0041] Connect the copper busbar, connect the shell and the current busbar with bolts, and conduct the ground electrode.

[0042] Preferably, an X capacitor filter board and a Y capacitor filter board are further included, wherein the positive and negative poles of the X capacitor filter board are respectively connected to the positive circuit and the negative circuit; the Y capacitor filter board is provided with a positive pole, a negative pole and a ground, and is respectively connected to the positive circuit, the negative circuit and the housing.

[0043] Preferably, the water nozzle channel is connected with a water nozzle.

[0044] Preferably, the positive electrode circuit includes a first copper bar, a second copper bar, a third copper bar, a fourth copper bar, a first transfer copper bar and a second transfer copper bar;

[0045] The first copper busbar is used to connect the positive electrode of the high-voltage quick-connect socket and the fuse;

[0046] The first transfer copper bus is used to connect the fuse and the horizontal relay;

[0047] The second transfer copper bus is used to connect the horizontal relay and the electromagnetic compatibility filter;

[0048] The second copper bus is used to connect the electromagnetic compatibility filter and the inductor;

[0049] The third copper busbar is used to connect the inductor and the first vertical relay;

[0050] The fourth copper busbar is used to connect the first vertical relay and the high-voltage quick-connect plug-in.

[0051] Preferably, the negative electrode circuit includes a fifth copper bar, a sixth copper bar and a seventh copper bar;

[0052] The fifth copper bar is used to connect the negative pole of the high-voltage quick-plug socket and the electromagnetic compatibility filter; the sixth copper bar is used to connect the electromagnetic compatibility filter and the second vertical relay in series; the seventh copper bar is used to connect the second vertical relay and the high-voltage quick-plug plug-in.

[0053] Beneficial effects of the present invention:

[0054] 1. The positive and negative circuits of the present invention are highly integrated, saving materials, reducing the space occupied by the boost module, making installation and disassembly easy, having good heat dissipation performance, and having good electromagnetic compatibility filter filtering effect. In addition, the present invention saves space in the vehicle and reduces the length and complexity of the vehicle wiring harness.

[0055] 2. The present invention uses the first to seventh copper bars to connect the components on the positive and negative circuits, avoiding the use of wires and facilitating the overall layout of the boost structure.

[0056] 3. The electromagnetic compatibility filter of the present invention has a huge magnetic ring inductance, which greatly improves the EMC level of the entire machine;

[0057] 4. The present invention sets a water circulation loop on the back of the shell, which not only reduces the complexity of the shell, but also provides good heat dissipation for the inductor, while reducing the difficulty of manufacturing and installation, saving costs;

[0058] 5. The present invention adopts a three-dimensional layout, with the fuse sitting above the horizontal relay. The copper bar structure is reasonably designed, making full use of the height space and reducing the length and width of the whole machine.

[0059] 6. The present invention sets up a high-voltage quick-connect plug-in layout with a specific orientation, which facilitates the wiring and plugging of the entire vehicle wiring harness and greatly reduces the volume occupied by the booster.

[0060] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0062] FIG1 shows a position diagram of the cooling structure of the present invention;

[0063] FIG2 shows a cooling structure diagram of the present invention;

[0064] FIG3 shows an exploded view of a boost structure for a new energy vehicle according to the present invention;

[0065] FIG4 shows an assembly diagram of a new energy vehicle boost structure according to the present invention;

[0066] FIG5 shows the overall structure of the inductor;

[0067] FIG6 shows an exploded view of an inductor;

[0068] FIG7 shows the overall structure of the electromagnetic compatibility filter;

[0069] FIG8 shows an exploded view of an electromagnetic compatibility filter;

[0070] FIG9 shows a connection diagram of a high-voltage quick-connect socket, a fuse, and a horizontal relay;

[0071] FIG10 shows a positional relationship diagram of the fuse, the first transfer copper busbar, and the second transfer copper busbar.

[0072] In the figure: 1. First cover plate; 2. Control PCB board; 3. Shielding plate; 4. Inductor; 401. Skeleton; 402. Iron core; 403. Housing; 404. Coil; 405. Sealant; 406. Wiring copper bar; 407. Temperature signal line; 5. Vertical relay; 6. Breathing valve; 7. Housing; 701. Cooling chamber; 702. Cooling cover plate; 703. Water nozzle channel; 704. Isolation plate; 705. Heat dissipation fin; 706. Guide plate; 8. Low-voltage signal plug-in; 9. Water nozzle; 10. High-voltage quick-connect plug-in; 11. High-voltage quick-connect socket; 12. Mounting seat; 13. Fuse; 1 4. Horizontal relay; 15. X-capacitor filter board; 16. Second cover; 17. EMC filter; 1701. Magnetic ring cover; 1702. Filter magnetic ring; 1703. X-capacitor; 1704. Current busbar; 1705. Fixing base; 1706. Y-capacitor; 1707. Power busbar; 18. Y-capacitor filter board; 19. First busbar; 1901. First transfer busbar; 1902. Second transfer busbar; 20. Film capacitor; 21. Second busbar; 22. Third busbar; 23. Fourth busbar; 24. Fifth busbar; 25. Sixth busbar; 26. Seventh busbar. DETAILED DESCRIPTION

[0073] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0074] A new energy vehicle boost structure, as shown in FIG1 and FIG2 , includes a housing 7 , a positive electrode circuit and a negative electrode circuit are provided inside the housing, and a cooling mechanism is provided on the bottom surface.

[0075] The cooling mechanism is used to cool and dissipate heat from the heat generating components of the positive and negative circuits, and includes: a cooling cavity 701, which is provided on the bottom surface of the housing 7 and corresponds to the position of the inductor 4 in the positive and negative circuits; a cooling cover 702, which is fixedly connected to the cooling cavity 701 (using a stir friction welding process) and is used to cover and seal the cooling cavity 701; a plurality of symmetrically arranged water nozzle channels 703, which are provided on the side of the housing 7 and communicate with the cooling cavity 701. In addition, as shown in FIG3 , each water nozzle channel 703 is connected to a water nozzle. 9; an isolation plate 704, located inside the cooling chamber 701 and on the symmetrical center line of the symmetrically arranged water nozzle channel 703, with one end connected to the end of the cooling chamber 701 close to the water nozzle channel 703; a plurality of heat dissipation fins 705, arranged on both sides of the isolation plate 704, and the heat dissipation fins 705 are shorter the farther away from the isolation plate 704; a guide plate 706, located on the side of the isolation plate 704 away from the water nozzle channel 703, is used to guide the coolant from the heat dissipation fins 705 on the left to the heat dissipation fins 705 on the right.

[0076] It should be noted that a breather valve 6 is also installed on the shell 7, the main function of which is to keep the internal and external pressures at the same level, and to ensure that the inside of the shell 7 is air-permeable but not water-permeable, thereby ensuring that the inside of the shell 7 is dry.

[0077] Furthermore, the isolation piece 704 is composed of a triangular piece connected to the end of the cooling cavity 701 and a straight blocking piece connected to the corners of the triangular piece, and one side of the triangular piece is connected to the end cavity wall of the cooling cavity 701.

[0078] Furthermore, the opening of the guide piece 706 faces the heat dissipation fin 705 , and the distance from the center line of the isolation piece 704 to the center line of the second heat dissipation fin 705 on the left or right side is equal to the radius of the guide piece 706 .

[0079] It should be noted that the installation position of the cooling chamber 701 corresponds to the position of the inductor 4 in the housing 7, which is conducive to cooling the inductor 4. In addition, the coolant flows into the water nozzle channel 703 on the left side of Figure 8 and flows out of the water nozzle channel 703 on the right side. The entire water channel is divided into two parts by the isolation plate 704. The triangular plate forms two inclined surfaces between the two water nozzle channels 703 to prevent the coolant from flowing too fast and generating vortices, which affects heat dissipation. In addition, this water channel is uniquely designed with a guide plate 706. The coolant on the left side of Figure 9 is guided to the heat dissipation fins 705 on the right side near the isolation plate 704 to prevent the coolant from flowing too fast and not flowing through the heat dissipation fins 705 near the isolation plate 704.

[0080] As shown in FIG3 , the outer wall of the housing 7 is provided with several ports, and an inductor 4, a vertical relay 5, a fuse 13, a horizontal relay 14, an electromagnetic compatibility filter 17, and a film capacitor 20 are installed inside. The present invention also includes a high-voltage quick-connect plug 10 and a high-voltage quick-connect socket 11; the high-voltage quick-connect plug 10 is installed at an outer wall port of the housing 7 for current output; and the high-voltage quick-connect socket 11 is installed at an outer wall port of the housing 7 for current input. As shown in FIG4 , the positive circuit sequentially connects the high-voltage quick-connect socket 11, the fuse 13, the horizontal relay 14, the electromagnetic compatibility filter 17, the film capacitor 20, the inductor 4, the first vertical relay 5, and the high-voltage quick-connect plug 10; the negative circuit sequentially connects the high-voltage quick-connect socket 11, the fuse 13, the horizontal relay 14, the electromagnetic compatibility filter 17, the film capacitor 20, the second vertical relay 5, and the high-voltage quick-connect plug 10.

[0081] It should be noted that Figure 9 shows a Boost circuit diagram, which, from left to right, shows the charging pile, Boost module, three-in-one control unit, and battery pack module. During operation, the current from the charging pile enters the Boost module for boosting, then enters the three-in-one control unit, and finally charges the battery pack module of the new energy vehicle. In this process, the boost structure in Figure 1 corresponds to the Boost module.

[0082] It should be further explained that, as shown in Figures 3 and 9, the high-voltage quick-connect socket 11 is connected to an external charging station via a high-voltage cable, providing power to the Boost module. When the external charging station voltage is lower than the battery voltage, Boost initiates the boost mode, closing relays S1, S6, and S7 in Figure 7. A 107A boost current is drawn through the high-voltage quick-connect socket 11, passing through fuse 13, then horizontal relay 14, and finally to electromagnetic compatibility filter 17 (EMC filter component). It then passes through film capacitor 20, where it is split. The positive loop current passes through inductor 4 and then to the first vertical relay 5 (S7). The negative loop current is then fed to the second vertical relay 5 (S6). Finally, the current is converged to the high-voltage quick-connect plug 10, which outputs the current to the vehicle's motor and electronic control. The control PCB 2 transmits the relay control signal via the wiring harness to the low-voltage signal plug 8, which then transmits it to the vehicle controller.

[0083] Furthermore, in Figure 3, the housing 7 is bolted to a first cover plate 1. A second cover plate 16 is mounted on the surface of the first cover plate 1. By opening the second cover plate 16, the fuse 13 can be inspected and replaced. Specifically, the first cover plate 1 is bolted to the housing 7, and the second cover plate 16 is bolted to the first cover plate 1, completing the assembly of the entire Boost module.

[0084] Furthermore, a shielding plate 3 is mounted on top of the inductor 4, with the control PCB 2 mounted on its surface. This shielding plate prevents direct contact between the inductor 4 and the control PCB 2. The shielding plate 3 reduces interference from noise generated by the internal high-voltage circuit on the low-voltage system on the control PCB 2. The control PCB 2 is responsible for controlling relays, collecting current data, and performing high-voltage safety testing.

[0085] It should be noted that the bottom of the inductor 4 is evenly coated with thermal conductive silicone grease of a certain thickness, and then the inductor 4 is fastened into the housing 7 with bolts.

[0086] Furthermore, the new energy vehicle boost structure also includes a low-voltage signal plug-in 8, which is mounted on an outer wall port of the housing 7. Furthermore, the low-voltage signal plug-in 8 is mounted on an outer wall port of the housing 7 and is electrically connected to the control PCB 2, transmitting the low-voltage signal generated by the control PCB 2. Specifically, the control PCB 2 transmits the relay control signal to the low-voltage signal plug-in 8 via a wiring harness, and then transmits it to the vehicle controller through the low-voltage signal plug-in 8.

[0087] Furthermore, a mounting seat 12 is provided in the housing 7 , and the mounting seat 12 is used to mount a fuse 13 .

[0088] As shown in Figures 5 and 6, inductor 4 comprises a frame 401, an iron core 402, a housing 403, a coil 404, sealant 405, a copper busbar 406, and a temperature signal line 407. Two frames 401 are provided, symmetrically mounted on opposite ends of housing 403 via bolts. Core 402 is an annular, waist-shaped structure, with the semicircular segments at each end inserted into the two symmetrically positioned frames 401. Coil 404 is wound around the straight segment in the center of core 402. Temperature signal line 407 is connected to the interior of the inductor to monitor the temperature of inductor 4, while its other end connects to control PCB 2. Temperature information is collected and transmitted to control PCB 2 and ultimately to the processor. Furthermore, the ends of frame 401 have open slots, into which copper busbar 406 is secured via screws, facilitating connection to other copper busbars or wires. The frame 401, iron core 402, housing 403, and coil 404 form the entire inductor device. Then, the shell 403 is fixedly connected to the two symmetrically arranged frames 401 so that the entire inductor device is located inside the shell 403. Finally, the sealant 405 is filled in the shell 403 to obtain a new structural inductor with precise installation positioning holes and excessive current function.

[0089] Furthermore, as shown in Figures 7 and 8, the electromagnetic compatibility filter 17 includes: a fixed base 1705, with annular cavities at both ends for mounting a filter magnetic ring 1702; a magnetic ring cover 1701, mounted at the opening of the annular cavity for fixing the filter magnetic ring 1702; the filter magnetic ring 1702 is used for filtering; a current busbar 1704, including a positive current busbar and a negative current busbar, mounted at the bottom of the fixed base 1705; an X capacitor 1703, connected to the positive current busbar and the negative current busbar through two pins respectively; two Y capacitors 1706 are provided and mounted on the fixed base 1705, wherein the two pins of one Y capacitor 1706 are respectively used to connect the positive current busbar and ground, and the two pins of the other Y capacitor 1706 are respectively used to connect the negative current busbar and ground; and a power copper busbar 1707, connected to the housing 7 and the current busbar 1704 by bolts, and connected to the ground.

[0090] In electromagnetic compatibility filter 17 (EMC filter assembly), the current drawn from high-voltage quick-connect socket 11 first flows to current busbar 1704, then passes through filter ring 1702, filtering out a layer of electromagnetic interference signals. After passing through filter ring 1702, the current is filtered once again by a filter circuit consisting of two 0.12uF Y capacitors 1706 and a 0.22uF X capacitor 1703. After passing through the two capacitors, the current once again passes through filter ring 1702. The entire circuit is an LCL electromagnetic circuit with a highly centralized structure, reducing the space occupied by the entire filter assembly in the booster. The copper busbar needs to pass through the dual nanocrystalline magnetic ring, which is difficult to design. The dual nanocrystalline magnetic ring solution offers better filtering performance than a conventional nanocrystalline and ferrite combination.

[0091] Furthermore, an X capacitor filter board 15 and a Y capacitor filter board 18 are installed on the positive circuit and the negative circuit, and the positive and negative poles of the X capacitor filter board 15 are connected to the positive circuit and the negative circuit respectively; the Y capacitor filter board 18 is provided with a positive pole, a negative pole and a ground, and is respectively connected to the positive circuit, the negative circuit and the housing 7.

[0092] It should be noted that the positive electrode loop and the negative electrode loop all adopt copper bar structure, and wherein the positive and negative poles of X capacitor filter plate 15 connect positive copper bar and negative copper bar respectively, and there are two bolt fixing holes on the plate, one end is fixed on the positive copper bar with bolts, and one end is fixed on the negative copper bar.By the copper paving circuit on the plate, a pin of X capacitor 1703 is formed to be connected with the positive copper bar, and another pin of X capacitor 1703 is connected with the negative copper bar, and the main function is to filter the interference of differential mode and common mode in the power supply.Three fixing bolt holes are arranged on Y capacitor filter plate 18, one end connects positive copper bar, one end connects negative copper bar, and one end is fixed on housing 7.By the upper copper paving circuit of circuit board, connect positive copper bar to first Y capacitor 1706 and then to ground pole and connect, and negative copper bar to second Y capacitor 1706 and then to ground pole and connect.

[0093] Furthermore, in the present invention, the circuit structure of the housing 7 is all connected using copper busbars. Specifically, in the positive circuit, it includes a first copper busbar 19, a first transfer copper busbar 1901, a second transfer copper busbar 1902, a second copper busbar 21, a third copper busbar 22, and a fourth copper busbar 23. The first copper busbar 19 is used to connect the positive pole of the high-voltage quick-connect socket 11 and the fuse 13; the second copper busbar 21 is used to connect the electromagnetic compatibility filter 17 and the inductor 4; the third copper busbar 22 is used to connect the inductor 4 and the first vertical relay 5; and the fourth copper busbar 23 is used to connect the first vertical relay 5 and the high-voltage quick-connect plug 10. Furthermore, as shown in Figures 9 and 10, the first transfer copper busbar 1901 is used to connect the fuse 13 and the horizontal relay 14; the second transfer copper busbar 1902 is used to connect the horizontal relay 14 and the electromagnetic compatibility filter 17. The fuse 13 is installed in the rectangular housing shown in Figure 10, and the first transfer copper busbar 1901 and the second transfer copper busbar 1902 are located at the bottom of the rectangular housing.

[0094] In the negative pole circuit, there are a fifth copper bar 24, a sixth copper bar 25 and a seventh copper bar 26; the fifth copper bar 24 is used to connect the negative pole of the high-voltage quick-connect socket 11 and the electromagnetic compatibility filter 17; the sixth copper bar 25 is used to connect the electromagnetic compatibility filter 17 and the second vertical relay 5 in series; the seventh copper bar 26 is used to connect the second vertical relay 5 and the high-voltage quick-connect plug-in 10.

[0095] It should be noted that some structures of the present invention can be replaced as follows:

[0096] 1. Pot the coil 404 and the housing 403 together;

[0097] 2. Use a separate water cooling plate to facilitate separate installation and testing of inductor 4 and the water cooling plate;

[0098] 3. Use ferrite core instead of nanocrystalline magnetic ring to facilitate the copper busbar to pass through the core;

[0099] 4. The IPT socket and terminal block are used to connect the circuits, saving the expensive cost of the high-voltage quick-plug socket 11 and the high-voltage quick-plug plug 10.

[0100] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new energy vehicle boost structure, characterized in that: include: A shell (7) is provided with a positive electrode loop and a negative electrode loop inside, and a cooling mechanism is provided on the bottom surface; the cooling mechanism is used to cool and dissipate heat from the heat generating components of the positive electrode loop and the negative electrode loop, and comprises: a cooling cavity (701) opened on the bottom surface of the shell (7) and corresponding to the position of the inductor (4) in the positive electrode loop and the negative electrode loop; a cooling cover plate (702) fixedly connected to the cooling cavity (701) and used to cover and seal the cooling cavity (701); a plurality of symmetrically arranged water nozzle channels (703) opened on the side of the shell (7) and connected to the cooling cavity (701); a spacer (7 04), located inside the cooling cavity (701) and on the symmetrical center line of the symmetrically arranged water nozzle channel (703), one end of which is connected to the end of the cooling cavity (701) close to the water nozzle channel (703); a plurality of heat dissipation fins (705), which are arranged on both sides of the isolation plate (704), and the heat dissipation fins (705) are shorter the farther away from the isolation plate (704); a guide plate (706), which is located on the side of the isolation plate (704) away from the water nozzle channel (703), and is used to guide the coolant from the heat dissipation fins (705) on the left to the heat dissipation fins (705) on the right.

2. A new energy vehicle boost structure according to claim 1, characterized in that: The isolation sheet (704) is composed of a triangular sheet connected to the end of the cooling cavity (701) and a straight blocking sheet connected to the corner of the triangular sheet, and one edge of the triangular sheet is connected to the end cavity wall of the cooling cavity (701).

3. A new energy vehicle boost structure according to claim 1, characterized in that: The opening of the guide plate (706) faces the heat dissipation fin (705), and the distance from the center line of the isolation plate (704) to the center line of the second heat dissipation fin (705) on the left or right side is equal to the radius of the guide plate (706).

4. A new energy vehicle boost structure according to claim 1, characterized in that: The outer wall of the housing (7) is provided with a plurality of ports, and an inductor (4), a vertical relay (5), a fuse (13), a horizontal relay (14), an electromagnetic compatibility filter (17) and a film capacitor (20) are installed inside; A high-voltage quick-connect plug-in (10) is installed on an outer wall port of the housing (7) for current output; A high-voltage quick-plug socket (11) is installed on an outer wall port of the housing (7) for current input; The positive circuit is connected in sequence to a high-voltage quick-plug socket (11), a fuse (13), a horizontal relay (14), an electromagnetic compatibility filter (17), a film capacitor (20), an inductor (4), a first vertical relay (5) and a high-voltage quick-plug plug-in (10); The negative electrode loop is sequentially connected to a high-voltage quick-plug socket (11), a fuse (13), a horizontal relay (14), an electromagnetic compatibility filter (17), a film capacitor (20), a second vertical relay (5) and a high-voltage quick-plug plug-in unit (10).

5. A new energy vehicle boost structure according to claim 4, characterized in that: The housing (7) is also connected to a first cover plate (1) via bolts, and a second cover plate (16) is also mounted on the surface of the first cover plate (1).

6. A new energy vehicle boost structure according to claim 4, characterized in that: A shielding plate (3) is also mounted on the top of the inductor (4), and a control PCB board (2) is mounted on the surface of the shielding plate (3).

7. A new energy vehicle boost structure according to claim 6, characterized in that: It also includes a low-voltage signal plug-in (8), which is mounted on an outer wall port of the housing (7) and is electrically connected to the control PCB board (2) and is used to transmit a low-voltage signal generated by the control PCB board (2).

8. A new energy vehicle boost structure according to claim 4, characterized in that: A mounting seat (12) is provided in the housing (7), and the mounting seat (12) is used to mount a fuse (13).

9. A new energy vehicle boost structure according to claim 6, characterized in that: The inductor (4) comprises: two symmetrically arranged skeletons (401) on which an iron core (402) is installed; the iron core (402) is a waist-shaped structure, and the semicircular segments at both ends of the waist-shaped structure are respectively inserted into the two symmetrically arranged skeletons (401); a coil (404) is wound around a straight segment in the middle of the iron core (402); a shell (403) is fixedly connected to the two symmetrically arranged skeletons (401); a sealant (405) is filled in the shell (403); a wiring copper busbar (406) is installed on the skeleton (401); and a temperature signal line (407) is used to detect the temperature change of the inductor (4) and transmit it to the control PCB board (2).

10. A new energy vehicle boost structure according to claim 4, characterized in that: The electromagnetic compatibility filter (17) comprises: a fixed base (1705) with annular cavities at both ends for mounting a filter magnetic ring (1702); a magnetic ring cover (1701) mounted at the opening of the annular cavity for mounting the filter magnetic ring (1702); a filter magnetic ring (1702) for filtering; a current busbar (1704) comprising a positive current busbar and a negative current busbar, mounted at the bottom of the fixed base (1705); an X capacitor (1703) connected to the positive current busbar and the negative current busbar via two pins; two Y capacitors (1706) mounted on the fixed base (1705), wherein the two pins of one Y capacitor (1706) are respectively used to connect the positive current busbar and grounding, and the two pins of the other Y capacitor (1706) are respectively used to connect the negative current busbar and grounding; and a connecting copper busbar (1707) connected to the housing (7) and the current busbar (1704) via bolts for conducting the grounding electrode.

11. A new energy vehicle boost structure according to claim 10, characterized in that: It also comprises an X capacitor filter plate (15) and a Y capacitor filter plate (18), wherein the positive and negative electrodes of the X capacitor filter plate (15) are respectively connected to the positive loop and the negative loop; and the Y capacitor filter plate (18) is provided with a positive electrode, a negative electrode and a ground, and is respectively connected to the positive loop, the negative loop and the housing (7).

12. The boost structure of a new energy vehicle according to claim 1, characterized in that: The water nozzle channel (703) is connected to a water nozzle (9).

13. A new energy vehicle boost structure according to any one of claims 4 to 11, characterized in that: The positive electrode circuit comprises a first copper bar (19), a second copper bar (21), a third copper bar (22), a fourth copper bar (23), a first transfer copper bar (1901) and a second transfer copper bar (1902); the first copper bar (19) is used to connect the positive electrode of the high-voltage quick-connect socket (11) and the fuse (13); The first transfer copper busbar (1901) is used to connect the fuse (13) and the horizontal relay (14); The second transfer copper busbar (1902) is used to connect the horizontal relay (14) and the electromagnetic compatibility filter (17); The second copper busbar (21) is used to connect the electromagnetic compatibility filter (17) and the inductor (4); The third copper busbar (22) is used to connect the inductor (4) and the first vertical relay (5); The fourth copper busbar (23) is used to connect the first vertical relay (5) and the high-voltage quick-connect plug-in unit (10).

14. A new energy vehicle boost structure according to claim 13, characterized in that: The negative electrode circuit comprises a fifth copper bar (24), a sixth copper bar (25) and a seventh copper bar (26); the fifth copper bar (24) is used to connect the negative electrode of the high-voltage quick-plug socket (11) and the electromagnetic compatibility filter (17); the sixth copper bar (25) is used to connect the electromagnetic compatibility filter (17) and the second vertical relay (5) in series; and the seventh copper bar (26) is used to connect the second vertical relay (5) and the high-voltage quick-plug plug-in (10).

Images