Two-in-one control box

Abstract

The utility model provides a two-in-one control box, and relates to the field of new energy automobiles, and the two-in-one control box comprises a high-voltage control box body, a partition plate is arranged in the high-voltage control box body, and a cover body is arranged at the upper end of the high-voltage control box body; a battery input plug connector, a DC-DC module, an MCU control loop, a fast charging control loop, a PTC control loop and an air conditioner control loop are integrated on the high-voltage control box body, and a socket wire harness is arranged on the side portion of the high-voltage control box body and extends into the high-voltage control box body. The DC-DC module, the fast charging control loop, the PTC control loop and the air conditioner control loop are all electrically connected with the MCU control loop, and the battery input plug connector is electrically connected with the DC-DC module. The high-voltage control box body is divided into two cavities through a partition plate, one cavity is used for installing a high-voltage electrical element, and the other cavity is used for installing a high-voltage electrical element; one cavity is used for installing low-voltage electrical elements, and the rationality, attractiveness and operability of the product are improved through high-voltage and low-voltage distributed wiring.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicles, and specifically, to a two-in-one control box. Background Art

[0002] In 2022, the domestic new energy vehicle market developed rapidly, with annual sales exceeding 6.8 million units, a year-on-year increase of 196.8%. It is expected that after 2023, new energy vehicles will enter the post-subsidy era, and the competitiveness of products will be determined by the market. The product form, especially pure electric vehicles, will also change from the current models based on the transformation of traditional platforms to new energy exclusive products developed based on pure electric dedicated platforms. The powertrain and high-voltage charging and distribution assembly are more inclined to highly integrated products. According to analysis reports, the sales volume of new energy passenger vehicles in China will reach 9 million in 2023, and the demand for high-voltage charging and distribution assemblies will further increase. It is expected that 70%-80% of new energy vehicles will be equipped with high-voltage charging and distribution all-in-one assemblies as standard, and the market capacity will exceed 20 billion. With the increase in the country's efforts to promote new energy vehicles, the demand for high-voltage charging and distribution all-in-one assemblies will become more and more vigorous. The existing control box has a single function, low space utilization, and there are many transfer plug-ins between the various components of the vehicle, many wiring ports, high risks, and high functional overlap costs. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a two-in-one control box, which can solve the technical problems of the control box having a single function and low space utilization.

[0004] An embodiment of the present application provides a two-in-one control box, including a high-voltage control box body, a partition is arranged inside the high-voltage control box body, a cover is arranged on the upper end of the high-voltage control box body, the high-voltage control box body integrates a battery input connector, a DC-DC module, an MCU control circuit, a fast charging control circuit, a PTC control circuit, and an air-conditioning control circuit, a socket wiring harness is arranged on the side of the high-voltage control box body, and the socket wiring harness extends into the interior of the high-voltage control box body, the DC-DC module, the fast charging control circuit, the PTC control circuit, and the air-conditioning control circuit are all electrically connected to the MCU control circuit, and the battery input connector is electrically connected to the DC-DC module.

[0005] Preferably, the DC-DC module is a single-stage phase-shifted full-bridge circuit, and includes MOS tube Q1, MOS tube Q2, MOS tube Q3, MOS tube Q4, inductor L1, capacitor C1, capacitor C2, capacitor C3, diode D1, diode D2, MOS tube Q5, MOS tube Q6, MOS tube Q7, MOS tube Q8, MOS tube Q9, MOS tube Q10, and MOS tube 11.

[0006] Preferably, the DC-DC module includes a voltage sampling circuit, and the voltage sampling circuit includes a diode D14, a resistor R130, a resistor R131, and a capacitor C59.

[0007] Preferably, a groove is provided at the upper end of the high-pressure control box body, and a sealing ring is provided inside the groove.

[0008] Preferably, a grounding connection line is provided on the high-voltage control box body, and the grounding connection line extends into the interior of the high-voltage control box body.

[0009] Preferably, a connecting column is provided inside the high-voltage control box body, and a fixing hole is provided on the connecting column.

[0010] Preferably, a vent valve is provided on the side of the high pressure control box body.

[0011] Preferably, a fixing piece is provided at the bottom of the side of the high-voltage control box body, and a threaded hole is provided on the fixing piece.

[0012] Preferably, a warning sign is provided on the upper portion of the high-voltage control box body.

[0013] Preferably, a cooling pipe is provided inside the high-pressure control box body, and two water nozzles are provided outside the high-pressure control box body, and both ends of the cooling pipe are connected to the water nozzles.

[0014] Beneficial effects of the utility model:

[0015] The utility model provides a two-in-one control box, including a high-voltage control box body, a partition is arranged inside the high-voltage control box body, a cover is arranged on the upper end of the high-voltage control box body, the high-voltage control box body integrates a battery input connector, a DC-DC module, an MCU control circuit, a fast charging control circuit, a PTC control circuit, and an air-conditioning control circuit, a socket harness is arranged on the side of the high-voltage control box body, and the socket harness extends to the inside of the high-voltage control box body, the DC-DC module, the fast charging control circuit, the PTC control circuit, and the air-conditioning control circuit are all electrically connected to the MCU control circuit, and the battery input connector is electrically connected to the DC-DC module. The utility model divides the high-voltage control box body into two cavities by a partition, one cavity is used to install high-voltage electrical components, and the other cavity is used to install low-voltage electrical components, and through high and low voltage distributed wiring, the rationality, aesthetics, and operability of the product are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model without the cover;

[0019] Figure 3 It is an exploded view of the utility model;

[0020] Figure 4 This is the electrical component connection diagram of the MCU control circuit, fast charging control circuit, PTC control circuit, and air conditioning control circuit of the utility model

[0021] Figure 5 This is a circuit diagram of a DC-DC module of the utility model;

[0022] Figure 6 This is a voltage sampling circuit diagram of the utility model.

[0023] The reference numerals are:

[0024] 1. High-voltage control box body; 2. Partition; 3. Cover body; 4. Socket wiring harness; 5. Groove; 6. Sealing ring; 7. Grounding connection wire; 8. Connecting column; 9. Fixing hole; 10. Breathing valve; 11. Fixing piece; 12. Threaded hole; 13. Warning sign; 14. Water nozzle. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] like Figure 1-6 As shown, a two-in-one control box includes a high-voltage control box body, a partition is arranged inside the high-voltage control box body, a cover is arranged on the upper end of the high-voltage control box body, the high-voltage control box body integrates a battery input connector, a DC-DC module, an MCU control circuit, a fast charging control circuit, a PTC control circuit, and an air-conditioning control circuit, a socket wiring harness is arranged on the side of the high-voltage control box body, and the socket wiring harness extends to the inside of the high-voltage control box body, the DC-DC module, the fast charging control circuit, the PTC control circuit, and the air-conditioning control circuit are all electrically connected to the MCU control circuit, and the battery input connector is electrically connected to the DC-DC module. The utility model divides the high-voltage control box body into two cavities by a partition, one cavity is used to install high-voltage electrical components, and the other cavity is used to install low-voltage electrical components, and through high and low voltage distributed wiring, the rationality, aesthetics, and operability of the product are improved.

[0032] In this embodiment, the DC-DC module is a single-stage phase-shifted full-bridge circuit, and the DC-DC module includes MOS tube Q1, MOS tube Q2, MOS tube Q3, MOS tube Q4, inductor L1, capacitor C1, capacitor C2, capacitor C3, diode D1, diode D2, MOS tube Q5, MOS tube Q6, MOS tube Q7, MOS tube Q8, MOS tube Q9, MOS tube Q10, and MOS tube 11.

[0033] In this embodiment, the DC-DC module includes a voltage sampling circuit, which includes a diode D14, a resistor R130, a resistor R131, and a capacitor C59. The voltage sampling circuit is used to sample the voltage of the battery externally connected to the battery input connector.

[0034] Specifically, the output voltage of the voltage sampling circuit of the DC-DC module and the voltage sampling of the battery input connector are sent to the main chip after resistor voltage division, RC filtering and limiting, and digital filtering is performed again inside the chip; the output current is sampled, and sent to the main chip after resistor voltage division, RC filtering and limiting, and digital filtering is performed again inside the chip; the DC-DC module has the characteristics of stable output voltage, high conversion efficiency, small size, safety and reliability, strong vibration resistance, etc., and has output over-voltage and under-voltage, input reverse connection protection, output over-voltage and under-voltage, output short circuit, CAN communication abnormality, over-temperature and other protection functions. The DC-DC module uses transformers and inductors with magnetic core + PCB wiring method, breaking the design concept of traditional winding transformers, and arranging the windings on the PCB to form a turns ratio of the primary side to the secondary side, thereby meeting the performance requirements of the transformer and reducing the overall size.

[0035] like Figure 1-2 As shown, in this embodiment, a groove 5 is provided at the upper end of the high-voltage control box body 1, and a sealing ring 6 is provided inside the groove 5. The sealing ring 6 of the utility model can effectively ensure the sealing inside the high-voltage control box body 1, so that it meets the P67 high waterproofness.

[0036] like Figure 1-2 As shown, in this embodiment, a grounding connection line 7 is provided on the high-voltage control box body 1. The grounding connection line 7 extends into the interior of the high-voltage control box body 1, and the grounding connection line 7 is used for grounding.

[0037] like Figure 1-2 As shown, in this embodiment, a connecting column 8 is provided inside the high-voltage control box body 1, and a fixing hole 9 is provided on the connecting column 8. The low-voltage electrical components and high-voltage electrical components involved in the MCU control circuit, fast charging control circuit, PTC control circuit, and air-conditioning control circuit of the utility model can be limited and fixed by the connecting column 8.

[0038] like Figure 1-2As shown, in this embodiment, a ventilation valve 10 is provided on the side of the high-pressure control box body 1, and the ventilation valve 10 can automatically adjust the air pressure inside and outside the high-pressure control box body 1 to ensure the safety of the utility model.

[0039] like Figure 1-2 As shown, in this embodiment, a fixing part 11 is provided at the bottom of the side of the high-voltage control box body 1, and a threaded hole 12 is provided on the fixing part 11. The utility model can fix the high-voltage control box body 1 by bolts or screws through the threaded hole 12 on the fixing part 11.

[0040] like Figure 1-2 As shown, in this embodiment, a warning sign 13 is provided on the upper part of the high-voltage control box body 1, and the warning sign 13 serves as a high-voltage danger warning.

[0041] like Figure 1-2 As shown, in this embodiment, a cooling pipe is provided inside the high-pressure control box body 1, and two water nozzles 14 are provided outside the high-pressure control box body 1. Both ends of the cooling pipe are connected to the water nozzles 14. The water nozzles 14 are connected to the high-pressure control box body 1 by threads. When assembling the water nozzles 14, thread glue needs to be applied on the threads to ensure sealing.

[0042] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A two-in-one control box, characterized in that: It includes a high-voltage control box body, a partition is arranged inside the high-voltage control box body, a cover is arranged on the upper end of the high-voltage control box body, the high-voltage control box body integrates a battery input connector, a DC-DC module, an MCU control circuit, a fast charging control circuit, a PTC control circuit, and an air-conditioning control circuit, a socket wiring harness is arranged on the side of the high-voltage control box body, and the socket wiring harness extends to the inside of the high-voltage control box body, the DC-DC module, the fast charging control circuit, the PTC control circuit, and the air-conditioning control circuit are all electrically connected to the MCU control circuit, and the battery input connector is electrically connected to the DC-DC module.

2. A two-in-one control box according to claim 1, characterized in that: The DC-DC module is a single-stage phase-shifted full-bridge circuit, and includes MOS tube Q1, MOS tube Q2, MOS tube Q3, MOS tube Q4, inductor L1, capacitor C1, capacitor C2, capacitor C3, diode D1, diode D2, MOS tube Q5, MOS tube Q6, MOS tube Q7, MOS tube Q8, MOS tube Q9, MOS tube Q10, and MOS tube 11.

3. A two-in-one control box according to claim 2, characterized in that: The DC-DC module includes a voltage sampling circuit, and the voltage sampling circuit includes a diode D14, a resistor R130, a resistor R131, and a capacitor C59.

4. The two-in-one control box according to claim 1, characterized in that: The upper end of the high-pressure control box body is provided with a groove, and a sealing ring is provided inside the groove.

5. The two-in-one control box according to claim 1, characterized in that: The high-voltage control box body is provided with a ground connection line, and the ground connection line extends into the interior of the high-voltage control box body.

6. The two-in-one control box according to claim 1, characterized in that: A connecting column is arranged inside the high-voltage control box body, and a fixing hole is arranged on the connecting column.

7. The two-in-one control box according to claim 1, characterized in that: A vent valve is arranged on the side of the high pressure control box body.

8. The two-in-one control box according to claim 1, characterized in that: A fixing piece is arranged at the bottom of the side of the high-voltage control box body, and a threaded hole is arranged on the fixing piece.

9. The two-in-one control box according to claim 1, characterized in that: A warning sign is arranged on the upper part of the high-voltage control box body.

10. The two-in-one control box according to claim 1, characterized in that: A cooling pipe is arranged inside the high-pressure control box body, and two water nozzles are arranged outside the high-pressure control box body, and both ends of the cooling pipe are connected to the water nozzles.

Images