Dual-mode storage battery charging circuit

Abstract

The utility model belongs to the technical field of storage battery charging, and particularly relates to a dual-mode storage battery charging circuit, which comprises a mains supply charging socket X1, a transformer T1, a contactor Q1, a contactor Q2, a 400Hz charging socket X2, a diode V1, a diode V2, a diode V3, a diode V4, an electrolytic capacitor C1, a resistor R1, a charger U1 and a charging button S1. The X1 is connected with the Q1 and the Q2, the Q1 and the Q2 are electrically connected with a charging signal of the electric movable winding drum control module M1 and the U1, the X2 is connected with the Q1 and the Q2 through the diode, the electrolytic capacitor C1 and the resistor which are connected in parallel, and the U1 is connected with the S1, the H1 and the storage battery. According to the utility model, the lead-acid storage battery of the electric movable winding drum is charged through the 380V / 50Hz commercial power or the 115V / 400Hz airplane ground static variable power supply, and the built-in charging device is arranged in the electric movable winding drum equipment, so that charging equipment does not need to be installed independently, the occupied space is saved, and convenience is provided for the maintenance, management and operation of the equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery charging, and specifically relates to a dual-mode battery charging circuit, which realizes charging the lead-acid battery of an electric mobile reel through a 380V / 50Hz city power supply or a 115V / 400Hz aircraft ground static variable power supply. Background Art

[0002] Due to the advancement of the airport's "oil-to-electricity" project, 400Hz aircraft ground static power supplies have been put into use in large quantities at domestic civil aviation airports. The floor-standing 400Hz aircraft ground static power supply is generally kept at a safety distance of several dozen meters from the aircraft. The 400Hz aircraft ground static power supply needs to utilize an electric mobile drum to power the aircraft, and the power of the electric mobile drum comes from a lead-acid battery.

[0003] Charging the lead-acid battery of the electric mobile reel requires a charging device. Commonly used charging equipment generally has an input power supply of 220V / 50hz AC power and an output DC 48V. It is usually placed separately from the electric mobile reel, and the battery of the electric mobile reel is charged through a connecting line in the middle.

[0004] The charging equipment of the above scheme needs to be installed independently, occupies a relatively large space, and needs to be configured and managed separately; the above charging scheme is limited to occasions with single-phase 220V / 50Hz electricity. Most of the occasions where the aircraft ground static variable power supply is used are 380V / 50Hz three-phase power supply. At this time, the electric mobile reel cannot be directly charged using 380V / 50Hz.

[0005] When charging the electric mobile reel of the above scheme, it is necessary to be close to the charging device and charge at a fixed position; if the electric mobile reel runs out of power during use and cannot move, and is far away from the charging device, it cannot be charged.

[0006] In summary, the prior art has the following technical problems to be solved: 1) When charging the electric mobile reel, a charging device needs to be installed separately, which increases the management and operation costs of the charging equipment; 2) When there is only 380V / 50Hz AC power on site, the battery of the electric mobile reel cannot be charged; 3) The electric mobile reel runs out of power during use and cannot be driven, requiring long-distance charging. Summary of the invention

[0007] In view of this, in order to solve the above-mentioned problems existing in the prior art, the purpose of the utility model is to provide a dual-mode battery charging circuit, which can be suitable for 380V / 50Hz charging, and can also directly charge the electric mobile reel battery through the 400Hz cable of the electric mobile reel; the charging circuit is built into the electric mobile reel, reducing peripheral charging equipment, facilitating management, and saving costs.

[0008] The technical solution adopted by the utility model is: a dual-mode battery charging circuit, including a mains charging socket X1, a transformer T1, a contactor Q1, a contactor Q2, a 400Hz charging socket X2, a diode V1, a diode V2, a diode V3, a diode V4, an electrolytic capacitor C1, a resistor R1, a charger U1 and a charging button S1; pin 1 and pin 2 of X1 are electrically connected to the primary pin 1 and pin 2 of T1 respectively, and the secondary pin 3 and pin 4 of T1 are electrically connected to the L1 pin of Q1 respectively The control pin A1 of Q1 is electrically connected to the L1 pin of Q1, the control pin A2 of Q1 is electrically connected to the normally closed contact terminal NC2 of Q2, and the other normally closed contact terminal NC1 of Q2 is electrically connected to the L2 pin of Q1; the T1 pin of Q1 and the T1 pin of Q2 are electrically connected to the 3rd pin of the input terminal of U1, and the T2 pin of Q1 and the T2 pin of Q2 are electrically connected to the 2nd pin of the input terminal of U1; the pin 1 of the input terminal of U1 is grounded, and the L3 pin of Q1 and the L3 pin of Q2 are electrically connected in parallel to the electric moving coil. The charging signal 1 of the drum control module M1, the T3 pin of the contactor Q1 and the T3 pin of the contactor Q2 are connected in parallel and electrically connected to the charging signal 2 of the electric mobile drum control module M1; the 1 pin of X2 is electrically connected to the positive pole of V1, the positive pole of V1 is electrically connected to the negative pole of V2, the 4 pin of X2 is electrically connected to the positive pole of V3, the positive pole of V3 is electrically connected to the negative pole of V4; the negative pole of V1, the negative pole of V3, the positive pole of C1 and the 1 pin of R1 are electrically connected in parallel to the L2 pin of Q2; the positive pole of V2, the positive pole of V4 The positive pole, the negative pole of C1 and the 2nd pin of R1 are electrically connected in parallel to the L1 pin of Q1, the control pin A1 of Q2 is electrically connected to the L1 pin of Q2, the control pin A2 of Q2 is electrically connected to the normally closed contact terminal NC2 of Q1, and the other end NC1 of the normally closed contact of Q1 is electrically connected to the L2 pin of Q2; the 3rd pin of S1 is electrically connected to the 1st pin of charging U1, the 2nd pin of S1 is electrically connected to the 2nd pin of U1, the 6th and 7th pins of U1 are electrically connected to the positive pole of the battery, and the 4th and 5th pins of U1 are electrically connected to the negative pole of the battery.

[0009] Preferably, a charging indicator light H1 is further included, wherein pin 1 of S1 is electrically connected to the negative pole of H1, and the positive pole of H1 is electrically connected to pin 3 of U1.

[0010] Preferably, pins 1 and 2 of X1 are connected to 380V / 50Hz AC power, pin 3 of X1 is grounded, pins 1 and 4 of X2 are input with 115V / 400Hz AC power, and pin 4 of X2 is grounded.

[0011] Preferably, the dual-mode battery charging circuit is installed in the electric moving drum.

[0012] Preferably, the transformer T1 is a step-down transformer with a transformation ratio of 380:220.

[0013] Preferably, the contactors Q1 and Q2 are of model AF09-30-01-13; the control coil voltage can be either an AC voltage or a DC voltage, and the connection between Q1 and Q2 is an interlocking form.

[0014] Preferably, the charger U1 is of model HEP-600C-48, and the input voltage can be either AC voltage or DC voltage.

[0015] Beneficial effects of the utility model:

[0016] The dual-mode battery charging circuit, mode 1 is suitable for 380V / 50Hz charging. Through the built-in step-down transformer, 380V / 50Hz is converted into 220V / 50Hz, which can be directly used for charging the battery of the electric mobile reel, solving the problem that the battery of the electric mobile reel cannot be charged when there is only 380V / 50Hz mains power on site during use; mode 2 directly charges the battery of the electric mobile reel through the 400Hz cable of the electric mobile reel; since the electric mobile reel is a device for retracting and releasing the 400Hz cable, it can accommodate a cable length of dozens of meters and can provide 115V / 400Hz power supply for civil aircraft; the utility model can directly insert the 400Hz cable plug into the battery charging socket of the electric mobile reel, saving the mains charging device, solving the problem that the electric mobile reel is exhausted during use, cannot be driven, and needs long-distance charging; the charging circuit described in the utility model is built into the electric mobile reel equipment, and there is no need to install a charging device separately, which saves space occupation and also provides convenience for equipment maintenance, management and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a circuit diagram of a dual-mode battery charging circuit according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0019] like Figure 1 As shown, a dual-mode battery charging circuit includes a mains charging socket X1, a transformer T1, a contactor Q1, a contactor Q2, a 400 Hz charging socket X2, a diode V1, a diode V2, a diode V3, a diode V4, a capacitor C1, a resistor R1, a charger U1, a charging button S1 and a charging indicator light H1.

[0020] Pins 1 and 2 of the AC charging socket X1 are connected to the AC power of 380V / 50Hz, pin 3 of X1 is grounded, pins 1 and 2 of X1 are electrically connected to pins 1 and 2 of the primary side of transformer T1, pins 3 and 4 of the secondary side of T1 are electrically connected to pins L1 and L2 of contactor Q1, control pin A1 of Q1 is electrically connected to pin L1 of Q1, control pin A2 of Q1 is electrically connected to one end NC2 of the normally closed contact of Q2, and the normally closed contact of Q2 is electrically connected to the contactor Q1. The other end NC1 is electrically connected to the L2 pin of Q1; the T1 pin of Q1 and the T1 pin of Q2 are electrically connected to the 3rd pin (AC / N) of the charger U1 input terminal, and the T2 pin of Q1 and the T2 pin of Q2 are electrically connected to the 2nd pin (AC / L) of the U1 input terminal; the L3 pin of Q1 and the L3 pin of Q2 are connected in parallel to output the charging signal 1, and the T3 pin of Q1 and the T3 pin of Q2 are connected in parallel to output the charging signal 2, and the pin 1 (FG) of the U1 input terminal is grounded. The L3 pin of contactor Q1 and the L3 pin of contactor Q2 are connected in parallel to the charging signal 1 of the electric mobile reel control module M1, and the T3 pin of contactor Q1 and the T3 pin of contactor Q2 are connected in parallel to the charging signal 2 of the electric mobile reel control module M1.

[0021] The 1st and 4th pins of the 400Hz charging socket X2 input 115V / 400Hz AC power. Pin 1 is the 115V / 400Hz A phase line, and pin 4 is the 115V / 400Hz neutral line (N line). The neutral line is connected to the ground. Pin 1 of X2 is electrically connected to the positive pole of diode V1, and the positive pole of V1 is electrically connected to the negative pole of V2. Pin 4 of X2 is electrically connected to the positive pole of diode V3, and the positive pole of V3 is electrically connected to the negative pole of diode V4. The negative electrode of V1, the negative electrode of V3, the positive electrode of the electrolytic capacitor C1, and the pin 1 of the resistor R1 are electrically connected to the L2 pin of Q2; the positive electrode of V2, the positive electrode of V4, the negative electrode of C1, and the pin 2 of the resistor R1 are electrically connected to the L1 pin of Q2; the L1 pin of Q2 is electrically connected to the control pin A1 of Q2, the control pin A2 of Q2 is electrically connected to one end NC2 of the normally closed contact of Q1, and the other end NC1 of the normally closed contact of Q1 is electrically connected to the L2 pin of Q2.

[0022] Pin 3 of the charging button S1 is electrically connected to pin 1 (RC+) of the output end of U1, pin 2 of S1 is electrically connected to pin 2 (RC-) of the output end of U1, pin 1 of S1 is electrically connected to the negative pole of the charging indicator H1, and the positive pole of H1 is electrically connected to pin 3 (+5VSB) of U1; pins 6 and 7 of the charger U1 are both output positive poles (+V), pins 6 and 7 are electrically connected to the positive pole of the battery, pins 4 and 5 of the charger U1 are both output negative poles (-V), and pins 4 and 5 are electrically connected to the negative pole of the battery.

[0023] Charging mode 1

[0024] When the electric mobile reel battery is charged using 380V / 50Hz AC power, pins 1 and 2 of the AC charging socket X1 are connected to 380V / 50Hz AC power. The 380V / 50Hz AC power is stepped down by transformer T1, and the transformer T1 ratio is 380:220, which converts the 380V / 50Hz AC power into 220V / 50Hz. Contactor Q1 automatically closes to supply power to charger U1. At this time, the normally closed contacts NC1 and NC2 of contactor Q1 are disconnected, which can prevent 115V / 400Hz charging from being connected at the same time and causing a short circuit to the back-end devices.

[0025] Charging mode 2

[0026] When the electric mobile reel battery is charged using 115V / 400Hz, pins 1 and 4 of the 400Hz charging socket X2 are connected to the 115V / 400Hz power supply, which is rectified by diodes V1, V2, V3, and V4, and converted into 160V DC after filtering by electrolytic capacitor C1; the DC power is connected to the input end of contactor Q2, and contactor Q2 automatically closes to supply power to charger U1; at this time, the normally closed contacts NC1 and NC2 of contactor Q2 are disconnected, which can prevent 380V / 50Hz charging from being connected at the same time and causing a short circuit to the back-end devices.

[0027] The contactor Q1 and Q2 are of model AF09-30-01-13; the control coil voltage is 100...250V 50Hz / 60Hz-DC, and the control coil voltage can be either AC voltage or DC voltage. The connection mode of contactors Q1 and Q2 is interlocking. The charging signals 1 and 2 of the electric mobile drum control module M1 are normally open signals output by contactors Q1 and Q2. When the input power supply is 380V / 50Hz or 115V / 400Hz, the normally open signal is closed, indicating that the input power supply is connected. At this time, the electric mobile drum control module M1 prohibits the electric mobile drum from working to avoid accidents of dragging the cable when charging.

[0028] The model of charger U1 is HEP-600C-48, and the input voltage range is 85~264VAC, or 120~370VDC; the input power supply voltage can be either AC voltage or DC voltage; the mains power of 380V / 50Hz is converted into 220V / 50Hz by a transformer to supply power to the input of charger U1; 115V / 400Hz is converted into 160V DC by rectification to supply power to the input of charger U1; after the charging switch S1 is pressed, the charging indicator light H1 lights up, and the battery of the electric mobile reel can be charged, otherwise, the charging can be disconnected.

[0029] In the embodiments of the utility model, the technical features not described in detail are all existing technologies or conventional technical means and will not be described in detail here.

[0030] Finally, it should be noted that the above embodiments are only specific implementation methods of the present utility model, which are used to illustrate the technical solution of the present utility model, rather than to limit it, and the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any technician familiar with the technical field can modify the technical solution recorded in the above embodiments within the technical scope disclosed by the present utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the present utility model, and should be covered within the protection scope of the present utility model.

Claims

1. A dual-mode battery charging circuit, characterized in that: It includes a mains charging socket X1, a transformer T1, a contactor Q1, a contactor Q2, a 400Hz charging socket X2, a diode V1, a diode V2, a diode V3, a diode V4, an electrolytic capacitor C1, a resistor R1, a charger U1 and a charging button S1; pin 1 and pin 2 of the mains charging socket X1 are electrically connected to pin 1 and pin 2 of the primary side of the transformer T1, pin 3 and pin 4 of the secondary side of the transformer T1 are electrically connected to pin L1 and pin L2 of the contactor Q1, and the contactor Q The control pin A1 of 1 is electrically connected to the L1 pin of the contactor Q1, the control pin A2 of the contactor Q1 is electrically connected to the normally closed contact terminal NC2 of the contactor Q2, and the other normally closed contact terminal NC1 of the contactor Q2 is electrically connected to the L2 pin of the contactor Q1; the transformer T1 pin of the contactor Q1 and the transformer T1 pin of the contactor Q2 are electrically connected to the 3 pin of the input terminal of the charger U1, and the T2 pin of the contactor Q1 and the T2 pin of the contactor Q2 are electrically connected to the 2 pin of the input terminal of the charger U1; Pin 1 of the input end of the charger U1 is grounded, the L3 pin of the contactor Q1 is connected in parallel with the L3 pin of the contactor Q2 and is electrically connected to the charging signal 1 of the electric mobile reel control module M1, and the T3 pin of the contactor Q1 is connected in parallel with the T3 pin of the contactor Q2 and is electrically connected to the charging signal 2 of the electric mobile reel control module M1; the 1 pin of the charging socket X2 is electrically connected to the anode of the diode V1, the anode of the diode V1 is electrically connected to the cathode of the diode V2, the 4 pin of the charging socket X2 is electrically connected to the anode of the diode V3, and the anode of the diode V3 is electrically connected to the cathode of the diode V4; The cathode of diode V1, the cathode of diode V3, the anode of electrolytic capacitor C1 and pin 1 of resistor R1 are electrically connected in parallel to pin L2 of contactor Q2; the anode of diode V2, the anode of diode V4, the cathode of electrolytic capacitor C1 and pin 2 of resistor R1 are electrically connected in parallel to pin L1 of contactor Q1, the control pin A1 of contactor Q2 is electrically connected to pin L1 of contactor Q2, the control pin A2 of contactor Q2 is electrically connected to the normally closed contact terminal NC2 of contactor Q1, and the other normally closed contact terminal NC1 of contactor Q1 is electrically connected to pin L2 of contactor Q2; Pin 3 of the charging button S1 is electrically connected to pin 1 of the charging charger U1, pin 2 of the charging button S1 is electrically connected to pin 2 of the charger U1, pins 6 and 7 of the charger U1 are electrically connected to the positive electrode of the battery, and pins 4 and 5 of the charger U1 are electrically connected to the negative electrode of the battery.

2. A dual-mode battery charging circuit according to claim 1, characterized in that: It also includes a charging indicator light H1, wherein pin 1 of the charging button S1 is electrically connected to the negative electrode of the charging indicator light H1, and the positive electrode of the charging indicator light H1 is electrically connected to pin 3 of the charger U1.

3. A dual-mode battery charging circuit according to claim 2, characterized in that: Pins 1 and 2 of the AC charging socket X1 are connected to 380V / 50Hz AC power, pin 3 of the AC charging socket X1 is grounded, pins 1 and 4 of the charging socket X2 are input with 115V / 400Hz AC power, and pin 4 of the charging socket X2 is grounded.

4. A dual-mode battery charging circuit according to claim 3, characterized in that: The dual-mode battery charging circuit is installed in the electric moving drum.

5. A dual-mode battery charging circuit according to claim 4, characterized in that: The transformer T1 is a step-down transformer with a transformation ratio of 380:

220.

6. A dual-mode battery charging circuit according to claim 4, characterized in that: The contactor Q1 and the contactor Q2 are of model AF09-30-01-13, and the connection mode of the contactor Q1 and the contactor Q2 is an interlocking form.

7. A dual-mode battery charging circuit according to claim 4, characterized in that: The model of the charger U1 is HEP-600C-48.

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