Rechargeable battery charging control system and new energy automobile

Abstract

The utility model relates to the technical field of new energy automobiles, in particular to a rechargeable battery charging control system and a new energy automobile. The charging control system for the rechargeable battery comprises a charging driving module and a charging output module, the charging driving module drives the charging output module to output direct current to the rechargeable battery, the stability of direct current output in the charging process is improved, and faults are reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of new energy vehicles, and specifically relates to a rechargeable battery charging control system and a new energy vehicle. Background Art

[0002] The new energy on-board charger (OBC) is an energy conversion device that is fixedly installed on electric vehicles and controls and adjusts the charging of the vehicle's power battery. The new energy on-board charger has the ability to safely and automatically charge the power battery of the electric vehicle. It dynamically adjusts the charging current and voltage parameters based on the data provided by the battery management system (BMS), converts civilian single-phase AC power (220V) into DC power, and charges the power battery. The on-board charger consists of two major parts: the power supply part and the charger control motherboard. Among them, the main function of the power supply part is to convert 220V AC power into DC power; the charger control motherboard is mainly used to control, monitor, calculate, correct, protect the power supply part, and communicate with the outside world through the network. It is the "central brain" of the on-board charger.

[0003] In the prior art, the DC output of the charger is unstable during the power conversion process, which causes unstable battery charging and easily causes charging failures, affecting the normal use of the charger and the vehicle. Therefore, how to improve the stability of the DC output of the charger and reduce the occurrence of charging failures has become an urgent problem to be solved. Utility Model Content

[0004] The purpose of one or more embodiments of this specification is to provide a rechargeable battery charging control system and a new energy vehicle to improve the stability of DC power output during charging and reduce the occurrence of faults.

[0005] To solve the above technical problems, one or more embodiments of this specification are implemented as follows:

[0006] In a first aspect, an embodiment of the utility model provides a rechargeable battery charging control system, comprising a charging drive module and a charging output module, wherein the charging drive module drives the charging output module to output direct current to the rechargeable battery, wherein the charging output module adopts a full-bridge rectifier unit for current rectification, and the full-bridge rectifier unit comprises: 1 half-bridge excitation inductor (L4), 1 main high-frequency transformer (T1 / T2), 1 capacitor (C27), 1 differential mode inductor (T70) and 5 diodes (D1, D3, D7, D9, D10), one end of the half-bridge excitation inductor (L4) is connected to the charging drive module, and the other end of the half-bridge excitation inductor (L4) is connected to the first end of the main high-frequency transformer (T1 / T2), and the series The non-grounded end of the diode (D1) and the diode (D3) connected in series and the diode (D9) and the diode (D10) connected in series is connected to one end of the diode (D7) via the differential mode inductor (T70), and the other end of the diode (D7) is connected to the positive output end of the charging output module. The capacitor (C27) is connected in parallel to the diode (D1) and the diode (D3) connected in series, wherein the third end and the fourth end of the main high-frequency transformer (T1 / T2) are connected, the fifth end of the main high-frequency transformer (T1 / T2) is connected between the diode (D9) and the diode (D10), and the fourth end of the main high-frequency transformer (T1 / T2) is connected between the diode (D1) and the diode (D3).

[0007] Optionally, the charging output module also includes an output balancing capacity storage receiving circuit, which includes: 2 capacitors (C41, C65), 4 resistors (R30, R38, R39, R40), and the non-grounded end of the series-connected capacitor (C41), capacitor (C65) and the series-connected resistor (R30), resistor (R38), resistor (R39), and resistor (R40) is connected in parallel to one end of the diode (D7).

[0008] Optionally, the charging output module also includes a resonant circuit, which includes: 2 diodes (D17, D18), 4 capacitors (C39, C24, C78, ​​C42), and the non-grounded end of the series-connected diode (D17), diode (D18) and the series-connected capacitor (C39), capacitor (C24), capacitor (C78), and capacitor (C42) is connected in parallel to one end of the diode (D7).

[0009] Optionally, the charging output module also includes an output voltage regulation circuit, which includes: 1 capacitor (C71), 5 resistors (R62, R57, R63, R61, R60), and the non-grounded ends of the capacitor (C71), resistor (R62), and resistor (R57) connected in parallel are connected to resistor (R63), resistor (R61) and resistor (R60) in sequence and then connected to one end of the diode (D7).

[0010] Optionally, the charging output module also includes a charging constant current detection circuit, which includes: 2 diodes (D86, D87), 3 resistors (D10, R110, R109), wherein the resistor (R10), the parallel diodes (D86, D87), the resistor (R110) and the resistor (R109) are connected in series in sequence and connected to the negative output terminal.

[0011] Optionally, the charging output module further includes an input current transfer loop, which includes: 1 current transformer (L1A), 1 capacitor (C53), 3 resistors (R29, R72, R73) and 4 diodes (D72, D73, D74, D75), wherein one end of the current transformer (L1A) is connected to the second end of the main high-frequency transformer (T1 / T2), the diode (D75) and the diode (D74) connected in series and the diode (D73) and the diode (D72) connected in series, the resistor (R72) and the resistor (R73) are connected in parallel to the power supply circuit (T11, T12), one end of the capacitor (C53) and the resistor (R29) connected in series is connected between the diode (D75) and the diode (D74), and the other end of the capacitor (C53) and the resistor (R29) connected in series is connected between the diode (D73) and the diode (D72).

[0012] Optionally, the charging output module also includes an output voltage stabilizing circuit, which includes: 2 capacitors (C43, C75), 10 resistors (R75, R74, R77, R76, R78, R49, R42, R56, R48, R45), wherein the capacitor (R71), resistor (R75), resistor (R74) connected in parallel and resistor (R77), resistor (R76), resistor (R78) are connected in series to form a first protection unit, and the capacitor (C43), resistor (R49), resistor (R42) and resistor (R45), resistor (R48), resistor (R56) are connected in series to form a second protection unit, one end of the first protection unit and the second protection unit after being connected in parallel is connected to the other end of the diode (D7), and one end of the first protection unit and the second protection unit after being connected in parallel is connected to the power supply circuit.

[0013] Optionally, the charging drive module includes an upper half-bridge tube drive unit and a lower half-bridge tube drive unit, the upper half-bridge tube drive unit and the lower half-bridge tube drive unit jointly drive the charging output module, and the upper half-bridge tube drive unit includes: 1 MOS tube (Q3), 2 triodes (Q75, Q77), 2 diodes (D19, D22), 3 capacitors (C62, C92, C93), 7 resistors (R26, R167, R112, R128, R55, R7, R37 ), two ends of the capacitor (C62) are connected to the S pole and the D pole of the MOS tube (Q3), the S pole of the MOS tube (Q3) is connected to one end of the half-bridge excitation inductor (L4), the D pole of the MOS tube (Q3) is connected to the diode (D18), the emitter of the transistor (Q75) is connected to the emitter of the transistor (Q77), one end of the resistor (R167) is connected to the base of the transistor (Q75), the other end of the resistor (R167) is connected to the base of the transistor (Q77), and the One end is connected between the resistor (R167) and the transistor (Q75), one end of the series connection of the diode (D22), the resistor (R128), the resistor (R55), and the resistor (R7) is connected in parallel to the emitter of the transistor (Q75) and the emitter of the transistor (Q77), the other end of the series connection of the diode (D22), the resistor (R128), the resistor (R55), and the resistor (R7) is connected in parallel to the S pole of the MOS tube (Q3) through the resistor (R37), and the diode (D19) One end of the series connection of a diode (D19) and a resistor (R112) is connected to the collector of the transistor (Q75); the other end of the series connection of a diode (D19) and a resistor (R112) is connected to a power supply circuit; one end of a capacitor (C93) is connected to the S pole of the MOS tube (Q3); the other end of the capacitor (C93) is connected to the collector of the transistor (Q75); one end of a capacitor (C92) is connected to the S pole of the MOS tube (Q3); and the other end of the capacitor (C92) is connected between the diode (D19) and the resistor (R112).

[0014] Optionally, the lower half-bridge tube driving unit comprises: a MOS tube (Q4), two transistors (Q76, Q80), a diode (D21), four capacitors (C96, C4, C30, C1A), and six resistors (R41, R127, R9, R126, R24, and R119), two ends of the capacitor (C1A) are connected to the S pole and D pole of the MOS tube (Q4), the D pole of the MOS tube (Q4) is connected to one end of the half-bridge excitation inductor (L4), the S pole of the MOS tube (Q4) is grounded, one end of the series-connected diode (D21), the resistor (R127) and the resistor (R9) and the resistor (R126) is connected in parallel to between the emitter of the transistor (Q76) and the emitter of the transistor (Q80), the emitter of the transistor (Q76) is connected to the D pole of the transistor (L4), and the S pole of the MOS tube (Q4) is grounded. The emitter of the transistor (Q80), the other end of the series-connected diode (D21), resistor (R127) and resistor (R9) and resistor (R126) connected in parallel is connected to resistor (R24) and then grounded, the non-grounded end of the capacitor (C30) is connected to the collector of the transistor (Q80), one end of the series-connected resistor (R119) and capacitor (C4) is connected to the collector of the transistor (Q76), the other end of the series-connected resistor (R119) and capacitor (C4) is grounded, the non-grounded end of the capacitor (C96) is connected to the collector of the transistor (Q76), one end of the resistor (R41) is connected between the base of the transistor (Q76) and the base of the transistor (Q80), the base of the transistor (Q76) is connected to the base of the transistor (Q80), and the other end of the resistor (R41) is connected to the charging circuit.

[0015] In a second aspect, an embodiment of the utility model provides a new energy vehicle, comprising a rechargeable battery charging control system as described above.

[0016] It can be seen from the technical solutions provided in one or more embodiments of the present specification that in the rechargeable battery charging control system provided by the embodiment of the utility model, the charging drive module drives the charging output module to output stable direct current to the rechargeable battery, wherein the charging output module adopts a full-bridge rectifier unit to rectify the current, the rectification circuit is simple, the output direct current after rectification is stable, and the charging failure rate is reduced by more than 20%. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate one or more embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the description of one or more embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1It is a circuit schematic diagram of a rechargeable battery charging control system provided according to an embodiment of the utility model. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in one or more embodiments of this specification will be clearly and completely described below in conjunction with the drawings in one or more embodiments of this specification. Obviously, the one or more embodiments described are only part of the embodiments of this specification, not all of the embodiments. Based on one or more embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this document.

[0020] The rectifier circuit of the rechargeable battery charging control system provided by the embodiment of the utility model is simple, the DC power output after rectification is stable, and the charging failure rate is reduced by more than 20%. The rechargeable battery charging control system provided by this specification and its various parts are described in detail below.

[0021] Embodiment 1

[0022] Reference Figure 1 As shown, a rechargeable battery charging control system provided by an embodiment of the utility model includes a charging drive module and a charging output module. The charging drive module drives the charging output module to output direct current to the rechargeable battery, wherein the charging output module adopts a full-bridge rectifier unit for current rectification. The full-bridge rectifier unit includes: 1 half-bridge excitation inductor L4, 1 high-frequency transformer T1 / T2, 1 capacitor C27, 1 differential mode inductor T70 and 5 diodes D1, D3, D7, D9, D10. One end of the half-bridge excitation inductor L4 is connected to the charging drive module, and the other end of the half-bridge excitation inductor L4 is connected to the main high-frequency transformer The first end of T1 / T2, the non-grounded end of the series-connected diodes D1 and D3 and the series-connected diodes D9 and D10 in parallel is connected to one end of the diode D7 via the differential mode inductor T70, the other end of the diode D7 is connected to the positive output end of the charging output module, the capacitor C27 is connected in parallel with the series-connected diodes D1 and D3, wherein the third and fourth ends of the main high-frequency transformer T1 / T2 are connected, the fifth end of the high-frequency transformer T1 / T2 is connected between the diode D9 and the diode D10, and the fourth end of the high-frequency transformer T1 / T2 is connected between the diode D1 and the diode D3.

[0023] Among them, inductor L4 is a half-bridge excitation inductor, the main high-frequency transformer T1 / T2 plays the role of isolation and energy storage conversion, inductor T70 outputs differential mode inductor, and the structure of the full-bridge rectifier unit is simple, which enables the charging output module to output stable DC power, and reduces the failure rate of the charging process by more than 20%.

[0024] Optionally, in the rechargeable battery charging control system provided by the embodiment of the utility model, the charging output module also includes an output balancing capacity storage receiving circuit, and the output balancing capacity storage receiving circuit includes: 2 capacitors C41 and C65, 4 resistors R30, R38, R39, and R40, and the non-grounded end of the series capacitor C41 and capacitor C65 and the series resistors R30, R38, R39, and R40 are connected in parallel to one end of the diode D7. R49 is reserved and may not be used. The output balancing capacity storage receiving circuit plays the role of energy storage and filtering.

[0025] Optionally, in the charging control system for a rechargeable battery provided in an embodiment of the utility model, the charging output module further includes a resonant circuit, the resonant circuit includes: 2 diodes D17 and D18, 4 capacitors C39, C24, C78, ​​and C42, and the non-grounded end of the series-connected diode D17 and diode D18 and the series-connected capacitors C39, C24, C78, ​​and C42 are connected in parallel to one end of the diode D7. The function of the resonant circuit is to adjust the duty cycle of the MOS tube through the amplitude of the resonance, thereby changing the output voltage and current of the MOS tube.

[0026] Optionally, in the charging control system for a rechargeable battery provided by an embodiment of the utility model, the charging output module further includes an output voltage regulating circuit, and the output voltage regulating circuit includes: 1 capacitor C71, 5 resistors R62, R57, R63, R61, and R60, and the non-grounded ends of the capacitor C71, resistor R62, and resistor R57 connected in parallel are sequentially connected to resistors R63, R61, and R60, and then connected to one end of the diode D7. The function realized by the output voltage regulating circuit is to output a 5V power voltage for user use.

[0027] Optionally, in the charging control system for a rechargeable battery provided by an embodiment of the utility model, the charging output module further includes a charging constant current detection circuit, and the charging constant current detection circuit includes: 2 diodes D86 and D87, 3 resistors D10, R110, and R109, wherein the resistor R10, the parallel diodes D86 and D87, the resistor R110, and the resistor R109 are sequentially connected in series and connected to the negative output terminal. The resistor R109 is a constant current detection resistor, which can set the upper limit value of the charging current.

[0028] Optionally, in the charging control system of the rechargeable battery provided by the embodiment of the utility model, the charging output module also includes an input current transfer loop, which includes: 1 current transformer L1A, 1 capacitor C53, 3 resistors R29, R72, R734 diodes D72, D73, D74, D75, wherein one end of the current transformer L1A is connected to the second end of the main high-frequency transformer T1 / T2, the diode D75 and the diode D74 connected in series are connected to the diode D73 and the diode D72 connected in series, the resistor R72 and the resistor R73 are connected in parallel to the power supply circuit T11 and T12, the capacitor C53 and the resistor R29 are connected in series at one end connected between the diode D75 and the diode D74, and the capacitor C53 and the resistor R29 are connected in series at the other end connected between the diode D73 and the diode D72. The duty cycle of the output current is adjusted by detecting the input current.

[0029] Resistor R29 and capacitor C53 form an RC receiving circuit, inductor L1A is a current transformer, and diode D75, diode D74, diode D72, diode D73, resistor R72, and resistor R73 form a working current information transmission loop during the charging process, which improves the current detection accuracy by more than 10%.

[0030] Optionally, in the charging control system of the rechargeable battery provided by the embodiment of the utility model, the charging output module also includes an output voltage stabilizing circuit, and the output voltage protection circuit includes: 2 capacitors C43 and C75, 10 resistors R75, R74, R77, R76, R78, R49, R42, R56, R48, R45, wherein the capacitor R71, resistor R75, resistor R74 connected in parallel and resistor R77, resistor R76, resistor R78 are connected in series to form a first protection unit, and the capacitor C43, resistor R49, resistor R42 connected in parallel and resistor R45, resistor R48, resistor R56 are connected in series to form a second protection unit, and one end of the first protection unit and the second protection unit connected in parallel is connected to the other end of the diode D7, and one end of the first protection unit and the second protection unit connected in parallel is connected to the power supply circuit. When the output is overvoltage, the chip L6599 stops working.

[0031] Optionally, in the rechargeable battery charging control system provided by the embodiment of the utility model, the charging drive module includes an upper half-bridge tube drive unit and a lower half-bridge tube drive unit, and the upper half-bridge tube drive unit and the lower half-bridge tube drive unit jointly drive the charging output module, and the upper half-bridge tube drive unit includes: 1 MOS tube Q3, 2 transistors Q75, Q77, 2 diodes D19, D22, 3 capacitors C62, C92, C93, 7 resistors R26, R167, R112, R128, R55, R7, R37, two ends of the capacitor C62 are connected to the S pole and D pole of the MOS tube Q3, the S pole of the MOS tube Q3 is connected to one end of the half-bridge excitation inductor L4, the D pole of the MOS tube Q3 is connected to the diode D18, the emitter of the transistor Q75 is connected to the emitter of the transistor Q77, one end of the resistor R167 is connected to the base of the transistor Q75, and the other end of the resistor R167 is connected to the base of the transistor The base of the transistor Q77 is connected to the base of the transistor Q77, one end of the resistor R26 is connected between the resistor R167 and the transistor Q75, one end of the series connection of the diode D22, the resistor R128, the resistor R55 and the resistor R7 is connected to the emitter of the transistor Q75 and connected between the emitters of the transistor Q77, the other end of the series connection of the diode D22, the resistor R128, the resistor R55 and the resistor R7 is connected in series with the resistor R37 and then connected to the S pole of the MOS transistor Q3, one end of the series connection of the diode D19 and the resistor R112 is connected to the collector of the transistor Q75, the other end of the series connection of the diode D19 and the resistor R112 is connected to the power supply circuit, one end of the capacitor C93 is connected to the S pole of the MOS transistor Q3, the other end of the capacitor C93 is connected to the collector of the transistor Q75, one end of the capacitor C92 is connected to the S pole of the MOS transistor Q3, and the other end of the capacitor C92 is connected between the diode D19 and the resistor R112.

[0032] Resistors R26 and R41 send driving signals to the upper half-bridge MOS tube Q3, and transistors Q75, Q77, resistors R128, R55, and R7 form the main driving circuit of MOS tube Q3. The two half-bridge tube driving units form a full-bridge phase-shift mode, which can increase the driving efficiency to more than 95% and reduce the differential mode inductance EMI by 2-6DB.

[0033] Optionally, the rechargeable battery charging control system provided by the embodiment of the utility model, the lower half-bridge tube driving unit, includes: 1 MOS tube Q4, 2 transistors Q76, Q80, 1 diode D21, 4 capacitors C96, C4, C30, C1A, 6 resistors R41, R127, R9, R126, R24, R119, the two ends of the capacitor C1A are connected to the S pole and D pole of the MOS tube Q4, the D pole of the MOS tube Q4 is connected to one end of the half-bridge excitation inductor L4, the S pole of the MOS tube Q4 is grounded, and one end of the series-connected diode D21, resistor R127, resistor R9, and resistor R126 is connected in parallel to between the emitter of the transistor Q76 and the emitter of the transistor Q80, and the three The emitter of the transistor Q76 is connected to the emitter of the transistor Q80, the other end of the series-connected diode D21, resistor R127, resistor R9, and resistor R126 is connected in parallel, connected to resistor R24 ​​and then grounded, the non-grounded end of the capacitor C30 is connected to the collector of the transistor Q80, one end of the series-connected resistor R119 and capacitor C4 is connected to the collector of the transistor Q76, the other end of the series-connected resistor R119 and capacitor C4 is grounded, the non-grounded end of the capacitor C96 is connected to the collector of the transistor Q76, one end of the resistor R41 is connected between the base of the transistor Q76 and the base of the transistor Q80, the base of the transistor Q76 is connected to the base of the transistor Q80, and the other end of the resistor R41 is connected to the charging circuit.

[0034] Transistor Q76, transistor Q80, resistor R127, resistor R9, and resistor R126 form the main driving circuit of MOS tube Q4. Resistor R37 and resistor R24 ​​form the G-pole driving signal voltage peak receiving circuit of MOS tube Q3 and MOS tube Q4, and the purpose is to protect the MOS tube from damage. The structural design of the upper half-bridge tube driving unit / lower half-bridge tube driving unit is adopted to enhance the driving ability of the half-bridge MOS tube. When the upper half-bridge tube driving unit stops working, the lower half-bridge tube driving unit starts to conduct and work. The upper half-bridge tube driving unit and the lower half-bridge tube driving unit work in rotation, so that the half-bridge circuit has a stronger output load capacity.

[0035] From the above analysis, it can be seen that in the rechargeable battery charging control system provided by the embodiment of the utility model, the charging drive module drives the charging output module to output direct current to the rechargeable battery, wherein the charging output module adopts a full-bridge rectifier unit to rectify the current, the rectification circuit is simple, the output direct current after rectification is stable, and the charging failure rate is reduced by more than 20%.

[0036] Embodiment 2

[0037] The new energy vehicle provided in this embodiment includes the rechargeable battery charging control system described above. The rechargeable battery charging control system includes a charging drive module and a charging output module. The charging drive module drives the charging output module to output direct current to the rechargeable battery, wherein the charging output module uses a full-bridge rectifier unit for current rectification. The full-bridge rectifier unit includes: 1 half-bridge excitation inductor L4, 1 main high-frequency transformer T1 / T2, 1 capacitor C27, 1 differential mode inductor T70 and 5 diodes D1, D3, D7, D9, D10. One end of the half-bridge excitation inductor L4 is connected to the charging drive module, and the other end of the half-bridge excitation inductor L4 is connected to the first The non-grounded end of the series-connected diodes D1 and D3 and the series-connected diodes D9 and D10 in parallel is connected to one end of the diode D7 via the differential-mode inductor T70. The other end of the diode D7 is connected to the positive output end of the charging output module. The capacitor C27 is connected in parallel with the series-connected diodes D1 and D3. The third and fourth ends of the main high-frequency transformer T1 / T2 are connected, the fifth end of the main high-frequency transformer T1 / T2 is connected between the diode D9 and the diode D10, and the fourth end of the main high-frequency transformer T1 / T2 is connected between the diode D1 and the diode D3. Among them, the inductor L4 is a half-bridge excitation inductor, the main high-frequency transformer T1 / T2 plays the role of isolation and energy storage conversion, and the inductor T70 outputs a differential-mode inductor.

[0038] From the above analysis, it can be seen that in the rechargeable battery charging control system provided by the embodiment of the utility model, the charging drive module drives the charging output module to output stable direct current to the rechargeable battery, wherein the charging output module adopts a full-bridge rectifier unit to rectify the current, the rectification circuit is simple, the output direct current after rectification is stable, and the charging failure rate is reduced by more than 20%.

[0039] In short, the above description is only a preferred embodiment of this specification and is not intended to limit the protection scope of this specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification shall be included in the protection scope of this specification.

[0040] The systems, devices, modules or units described in one or more of the above embodiments may be implemented by a computer chip or entity, or by a product having a certain function. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

[0041] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0042] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0043] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

Claims

1. A rechargeable battery charging control system, characterized in that: The invention comprises a charging drive module and a charging output module, wherein the charging drive module drives the charging output module to output direct current to a rechargeable battery, wherein the charging output module adopts a full-bridge rectifier unit for current rectification, and the full-bridge rectifier unit comprises: a half-bridge excitation inductor (L4), a main high-frequency transformer (T1 / T2), a capacitor (C27), a differential mode inductor (T70) and five diodes (D1, D3, D7, D9, D10), one end of the half-bridge excitation inductor (L4) is connected to the charging drive module, and the other end of the half-bridge excitation inductor (L4) is connected to the first end of the main high-frequency transformer (T1 / T2), and the series-connected diodes (D1), D2, D3, D7, D9 and D10 are connected to the charging drive module. 3) The non-grounded end connected in parallel with the series-connected diode (D9) and the diode (D10) is connected to one end of the diode (D7) via the differential mode inductor (T70), and the other end of the diode (D7) is connected to the positive output end of the charging output module. The capacitor (C27) is connected in parallel with the series-connected diode (D1) and the diode (D3), wherein the third end and the fourth end of the main high-frequency transformer (T1 / T2) are connected, the fifth end of the main high-frequency transformer (T1 / T2) is connected between the diode (D9) and the diode (D10), and the fourth end of the main high-frequency transformer (T1 / T2) is connected between the diode (D1) and the diode (D3).

2. The rechargeable battery charging control system according to claim 1, characterized in that: The charging output module also includes an output balancing capacity storage receiving circuit, which includes: 2 capacitors (C41, C65), 4 resistors (R30, R38, R39, R40), and the non-grounded end of the series-connected capacitor (C41), capacitor (C65) and the series-connected resistor (R30), resistor (R38), resistor (R39), and resistor (R40) is connected in parallel to one end of the diode (D7).

3. The rechargeable battery charging control system according to claim 2, characterized in that: The charging output module also includes a resonant circuit, which includes: 2 diodes (D17, D18), 4 capacitors (C39, C24, C78, ​​C42), and the non-grounded end of the series-connected diode (D17), diode (D18) and the series-connected capacitor (C39), capacitor (C24), capacitor (C78), and capacitor (C42) connected in parallel is connected to one end of the diode (D7).

4. The rechargeable battery charging control system according to claim 3, characterized in that: The charging output module also includes an output voltage regulation circuit, which includes: a capacitor (C71), five resistors (R62, R57, R63, R61, R60), and the non-grounded ends of the capacitor (C71), resistor (R62), and resistor (R57) connected in parallel are connected in sequence to resistor (R63), resistor (R61), and resistor (R60) and then connected to one end of the diode (D7).

5. The rechargeable battery charging control system according to claim 4, characterized in that: The charging output module also includes a charging constant current detection circuit, which includes: 2 diodes (D86, D87), 3 resistors (D10, R110, R109), wherein the resistor (R10), the parallel diodes (D86, D87), the resistor (R110) and the resistor (R109) are connected in series in sequence and then connected to the negative output terminal.

6. The rechargeable battery charging control system according to claim 5, characterized in that: The charging output module also includes an input current transfer loop, which includes: a current transformer (L1A), a capacitor (C53), three resistors (R29, R72, R73) and four diodes (D72, D73, D74, D75), wherein one end of the current transformer (L1A) is connected to the second end of the main high-frequency transformer (T1 / T2), the diode (D75) and the diode (D74) connected in series and the diode (D73) and the diode (D72) connected in series, the resistor (R72) and the resistor (R73) are connected in parallel to the power supply circuit (T11, T12), one end of the capacitor (C53) and the resistor (R29) connected in series is connected between the diode (D75) and the diode (D74), and the other end of the capacitor (C53) and the resistor (R29) connected in series is connected between the diode (D73) and the diode (D72).

7. The rechargeable battery charging control system according to any one of claims 1 to 6, characterized in that: The charging output module also includes an output voltage stabilizing circuit, and the output voltage protection circuit includes: 2 capacitors (C43, C75), 10 resistors (R75, R74, R77, R76, R78, R49, R42, R56, R48, R45), wherein the capacitor (R71), resistor (R75), resistor (R74) connected in parallel and the resistor (R77), resistor (R76), resistor (R78) are connected in series to form a first protection unit, and the capacitor (C43), resistor (R49), resistor (R42) and resistor (R45), resistor (R48), resistor (R56) are connected in series to form a second protection unit, one end of the first protection unit and the second protection unit connected in parallel is connected to the other end of the diode (D7), and one end of the first protection unit and the second protection unit connected in parallel is connected to the power supply circuit.

8. The rechargeable battery charging control system according to claim 5, characterized in that: The charging drive module includes an upper half-bridge tube drive unit and a lower half-bridge tube drive unit, and the upper half-bridge tube drive unit and the lower half-bridge tube drive unit jointly drive the charging output module. The upper half-bridge tube drive unit includes: 1 MOS tube (Q3), 2 triodes (Q75, Q77), 2 diodes (D19, D22), 3 capacitors (C62, C92, C93), 7 resistors (R26, R167, R112, R128, R55, R7, R37), and 10 resistors (R16, R17, R18, R27, R36, R37). The two ends of the capacitor (C62) are connected to the S pole and the D pole of the MOS tube (Q3), the S pole of the MOS tube (Q3) is connected to one end of the half-bridge excitation inductor (L4), the D pole of the MOS tube (Q3) is connected to the diode (D18), the emitter of the transistor (Q75) is connected to the emitter of the transistor (Q77), one end of the resistor (R167) is connected to the base of the transistor (Q75), the other end of the resistor (R167) is connected to the base of the transistor (Q77), and one end of the resistor (R26) is connected to the base of the transistor (Q75). Connected between the resistor (R167) and the transistor (Q75), one end of the series connection of the diode (D22), resistor (R128) and resistor (R55) and resistor (R7) in parallel is connected to the emitter of the transistor (Q75) and connected between the emitters of the transistor (Q77), the other end of the series connection of the diode (D22), resistor (R128) and resistor (R55) and resistor (R7) in parallel is connected to the S pole of the MOS tube (Q3) through a series resistor (R37), the diode (D19), One end of the resistor (R112) connected in series is connected to the collector of the transistor (Q75), the other end of the diode (D19) and the resistor (R112) connected in series is connected to the power supply circuit, one end of the capacitor (C93) is connected to the S pole of the MOS tube (Q3), the other end of the capacitor (C93) is connected to the collector of the transistor (Q75), one end of the capacitor (C92) is connected to the S pole of the MOS tube (Q3), and the other end of the capacitor (C92) is connected between the diode (D19) and the resistor (R112).

9. The rechargeable battery charging control system according to claim 8, characterized in that: The lower half-bridge tube driving unit comprises: a MOS tube (Q4), two transistors (Q76, Q80), a diode (D21), four capacitors (C96, C4, C30, C1A), and six resistors (R41, R127, R9, R126, R24, and R119), wherein the two ends of the capacitor (C1A) are connected to the S pole and the D pole of the MOS tube (Q4), the D pole of the MOS tube (Q4) is connected to one end of the half-bridge excitation inductor (L4), the S pole of the MOS tube (Q4) is grounded, and one end of the series-connected diode (D21), the resistor (R127) and the resistor (R9) and the resistor (R126) is connected in parallel to between the emitter of the transistor (Q76) and the emitter of the transistor (Q80), and the emitter of the transistor (Q76) is connected to the The emitter of (Q80), the other end of the series-connected diode (D21), resistor (R127) and resistor (R9) and resistor (R126) in parallel is connected to resistor (R24) and then grounded, the non-grounded end of capacitor (C30) is connected to the collector of transistor (Q80), one end of the series-connected resistor (R119) and capacitor (C4) is connected to the collector of transistor (Q76), the other end of the series-connected resistor (R119) and capacitor (C4) is grounded, the non-grounded end of capacitor (C96) is connected to the collector of transistor (Q76), one end of resistor (R41) is connected between the base of transistor (Q76) and the base of transistor (Q80), the base of transistor (Q76) is connected to the base of transistor (Q80), and the other end of resistor (R41) is connected to the charging circuit.

10. A new energy vehicle, characterized in that: The invention comprises a rechargeable battery charging control system according to any one of claims 1 to 9.

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