Charging device

Abstract

The utility model discloses a charging device, which comprises a three-phase five-core industrial socket, a single-phase three-core industrial socket, a three-phase alternating current contactor, a charger, a single-phase alternating current contactor and a self-resetting toggle switch, the three-phase five-core industrial socket is connected with the charger through the three-phase alternating current contactor; the single-phase three-core industrial socket is connected with the charger through the single-phase alternating current contactor; the three-phase alternating current contactor and the single-phase alternating current contactor are interlocked; the three-phase alternating current contactor is connected with the self-resetting toggle switch; the single-phase alternating current contactor is connected with the self-resetting toggle switch; the gear II of the self-resetting toggle switch is connected with the single-phase alternating current contactor; and the III gear of the self-resetting toggle switch is connected with the three-phase alternating current contactor. And the self-resetting toggle switch can be switched between the two gears, so that charging switching between 380V voltage and 220V voltage is realized. And the compatibility of the aerial work platform charging equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering equipment charging, in particular to a charging device. Background Art

[0002] Electric aerial work platforms primarily use lithium-ion batteries to power them, achieving energy savings, emissions reduction, and noise reduction. Electric aerial work platforms are gradually becoming the mainstream of construction machinery development.

[0003] Currently, construction sites can only provide a single voltage, such as 220V or 380V. Aerial work platform charging equipment can only support one of these voltages and cannot be compatible with both voltages simultaneously, resulting in poor charging compatibility. Summary of the Invention

[0004] The utility model provides a charging device to solve the problem of poor compatibility of current charging equipment for aerial work platforms.

[0005] The utility model provides a charging device, comprising: a three-phase five-core industrial socket, a single-phase three-core industrial socket, a three-phase AC contactor, a charger, a single-phase AC contactor, and a self-resetting button switch;

[0006] The three-phase five-core industrial socket is connected to the charger through the three-phase AC contactor;

[0007] The single-phase three-core industrial socket is connected to the charger through the single-phase AC contactor;

[0008] The three-phase AC contactor and the single-phase AC contactor are interlocked;

[0009] The three-phase AC contactor is connected to the self-resetting button switch;

[0010] The single-phase AC contactor is connected to the self-resetting button switch;

[0011] Position II of the self-resetting button switch is connected to the single-phase AC contactor;

[0012] The III position of the self-resetting button switch is connected to the three-phase AC contactor.

[0013] Optionally, the single-phase three-core industrial socket is connected to the single-phase AC contactor through a leakage protector.

[0014] Optionally, the first phase wire of the three-phase five-core industrial socket is connected to the first phase interface of the three-phase AC contactor, and the first phase interface of the three-phase AC contactor is connected to the first phase pin of the charger;

[0015] The second phase wire of the three-phase five-core industrial socket is connected to the second phase interface of the three-phase AC contactor, and the second phase interface of the three-phase AC contactor is connected to the second phase pin of the charger;

[0016] The third phase wire of the three-phase five-core industrial socket is connected to the preset terminal of the three-phase AC contactor;

[0017] The grounding wire of the three-phase five-core industrial socket is connected to the grounding interface of the three-phase AC contactor, and the grounding interface of the three-phase AC contactor is connected to the grounding interface of the charger;

[0018] Optionally, the first phase wire of the single-phase three-core industrial socket is connected to the first phase interface of the single-phase AC contactor through the leakage protector; the first phase interface of the single-phase AC contactor is connected to the first phase pin of the charger;

[0019] The neutral line of the single-phase three-core industrial socket is connected to the neutral line interface of the single-phase AC contactor through the leakage protector; the neutral line interface of the single-phase AC contactor is connected to the second phase pin of the charger;

[0020] The grounding phase conductor of the single-phase three-core industrial socket is connected to the grounding interface of the single-phase AC contactor through the leakage protector; the grounding interface of the single-phase AC contactor is connected to the grounding interface of the charger.

[0021] Optionally, the self-resetting button switch is a three-speed six-position self-resetting button switch.

[0022] Optionally, one end of the coil of the three-phase AC contactor KM1 is connected to the second phase interface of the three-phase AC contactor, and the other end is connected to the ninth pin in gear III of the self-resetting button switch.

[0023] Optionally, one end of the contactor KM2 coil of the single-phase AC contactor is connected to the neutral line interface of the single-phase AC contactor, and the other end is connected to the second pin in the I position of the self-resetting button switch.

[0024] Optionally, the fifth pin in gear I of the self-reset button switch is connected to 80V-;

[0025] The eighth pin in gear I of the self-resetting button switch is connected to the first phase interface of the three-phase AC contactor.

[0026] Optionally, the fourth pin in gear II of the self-reset button switch is connected to the 16A output pin of the charger;

[0027] The first pin in gear II of the self-resetting button switch is connected to the first phase interface of the single-phase AC contactor.

[0028] Optionally, the sixth pin in gear III of the self-reset button switch is connected to the 32A output pin of the charger.

[0029] The technical solution of this embodiment of the utility model is that one branch of the charger is connected to a three-phase five-core industrial socket via a three-phase AC contactor to provide 380V charging voltage. The other branch of the charger is connected to a single-phase three-core industrial socket via a single-phase AC contactor to provide 220V charging voltage. A self-resetting toggle switch can switch between these two branches, enabling switching between 380V and 220V charging voltages. This improves the compatibility of charging equipment for aerial work platforms.

[0030] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only 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.

[0032] Figure 1 It is a structural diagram of the circuit principle of the charging device provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0033] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] Figure 1 This is a schematic diagram of the circuit principle of a charging device provided by an embodiment of the present invention. The charging device includes: a three-phase five-core industrial socket 1, a single-phase three-core industrial socket 2, a three-phase AC contactor 4, a charger 5, a single-phase AC contactor 6, and a self-reset button switch 7;

[0036] The three-phase five-core industrial socket 1 is connected to the charger 5 through the three-phase AC contactor 4;

[0037] The single-phase three-core industrial socket 2 is connected to the charger 5 through the single-phase AC contactor 6;

[0038] The three-phase AC contactor 4 and the single-phase AC contactor 6 are interlocked;

[0039] The three-phase AC contactor 4 is connected to the self-resetting button switch 7;

[0040] The single-phase AC contactor 6 is connected to the self-resetting button switch 7;

[0041] The II position of the self-resetting button switch 7 is connected to the single-phase AC contactor 6;

[0042] The III position of the self-resetting button switch 7 is connected to the three-phase AC contactor 4 .

[0043] Optionally, based on the above embodiment, the single-phase three-core industrial socket 2 is connected to the single-phase AC contactor 6 through a leakage protector 3.

[0044] Optionally, based on the above embodiment, the first phase wire of the three-phase five-core industrial socket 1 is connected to the first phase interface 1L1 of the three-phase AC contactor, and the first phase interface 1L1 of the three-phase AC contactor is connected to the first phase pin L1 of the charger;

[0045] The second-phase conductor of the three-phase five-core industrial socket 1 is connected to the second-phase port 1L2 of the three-phase AC contactor, which in turn is connected to the second-phase pin L2 / N of the charger. The second-phase pin L2 / N of the charger also connects to the neutral wire and the L2 conductor. L1 represents the first-phase conductor, L2 represents the second-phase conductor, N represents the neutral wire, and PE represents the ground wire.

[0046] The third phase wire of the three-phase five-core industrial socket 1 is connected to the preset terminal of the three-phase AC contactor 4;

[0047] The grounding wire of the three-phase five-core industrial socket 1 is connected to the grounding interface PE of the three-phase AC contactor 4, and the grounding interface PE of the three-phase AC contactor 4 is connected to the grounding interface PE of the charger 5;

[0048] Optionally, based on the above embodiment, the first phase wire of the single-phase three-core industrial socket 2 is connected to the first phase interface 2L1 of the single-phase AC contactor through the leakage protector 3; the first phase interface 2L1 of the single-phase AC contactor is connected to the first phase pin L1 of the charger;

[0049] The neutral line phase conductor of the single-phase three-core industrial socket 2 is connected to the neutral line interface N of the single-phase AC contactor 6 through the leakage protector 3; the neutral line interface N of the single-phase AC contactor 6 is connected to the second phase pin L2 / N of the charger;

[0050] The grounding phase conductor of the single-phase three-core industrial socket 2 is connected to the grounding interface PE of the single-phase AC contactor 6 through the leakage protector 3; the grounding interface PE of the single-phase AC contactor 6 is connected to the grounding interface PE of the charger 5.

[0051] Optionally, based on the above embodiment, the self-resetting button switch 7 is a three-gear six-position self-resetting button switch.

[0052] Optionally, based on the above embodiment, one end of the coil of the three-phase AC contactor KM1 is connected to the second phase interface 1L2 of the three-phase AC contactor, and the other end is connected to the ninth pin 79 in the III position of the self-reset button switch 7.

[0053] Optionally, based on the above embodiment, one end of the single-phase AC contactor KM2 coil is connected to the neutral line interface N of the single-phase AC contactor 6, and the other end is connected to the second pin 72 in the I position of the self-resetting button switch 7.

[0054] Optionally, based on the above embodiment, the fifth pin 75 in gear I of the self-reset button switch 7 is connected to 80V-;

[0055] The eighth pin 78 in gear I of the self-resetting button switch 7 is connected to the first phase interface 1L1 of the three-phase AC contactor.

[0056] Optionally, based on the above embodiment, the fourth pin 74 in the II position of the self-reset button switch 7 is connected to the 16A output pin of the charger 5;

[0057] The first pin 71 in the II position of the self-resetting button switch 7 is connected to the first phase interface 2L1 of the single-phase AC contactor.

[0058] Optionally, based on the above embodiment, the sixth pin 76 in the III position of the self-reset button switch 7 is connected to the 32A output pin of the charger 5.

[0059] The requested current of the battery management system (BMS) of the lithium battery can be selected through the lower control display.

[0060] Under the working platform with a power supply voltage of 220V, the requested current of the lithium battery BMS can be set to 27A, 40A, and 80A, and the corresponding AC charging currents are 10A, 16A, and 32A respectively.

[0061] Under the 380V working platform, the requested current of the lithium battery BMS can also be set to 27A, 40A, and 80A, and the corresponding AC charging current is only 10A and 16A.

[0062] Optionally, the requested current of the BMS is set to 80A through the display screen, and the output power of the charger is controlled by toggling the button switch, thereby controlling the input power of the charger and the AC current at the input end.

[0063] For example, the self-resetting button switch 7 in the present invention is a three-speed, six-position button switch. Assuming a three-speed self-resetting button switch is used, by default, when the self-resetting button switch 7 is in position 1, the charging position of the charger is set to 10A. By default, both 220V and 380V power supply voltages can charge the mobile aerial work platform, improving the flexibility of equipment use.

[0064] When the self-reset button switch 7 is turned to the II position, the fourth pin 74 and the fifth pin 75 of the self-reset button switch 7 are short-circuited, short-circuiting the 80V- and the 16A output pin of the charger, reducing the output power of the charger to half. At the same time, the first pin 71 and the second pin 72 of the self-reset button switch 7 are short-circuited, energizing the coil of the single-phase AC contactor KM2. The coil of the AC contactor KM2 is energized, and the normally open contact of the AC contactor KM2 is closed. Figure 1The normally closed contacts of 2L1 / N / PE and KM2 are disconnected. Analysis of the electrical schematic shows that the mobile aerial work platform can be charged from a 220V work platform. Because the normally closed contacts of AC contactor KM2 are disconnected, and the three-phase AC contactor 4 and the single-phase AC contactor 6 are interlocked, the coil of AC contactor KM1 cannot receive power, and the normally open contacts of AC contactor KM1 cannot close. Therefore, the 380V charging socket cannot charge the mobile aerial work platform, achieving a self-locking function in the control logic.

[0065] When the self-reset button switch 7 is turned to position III, the coil of the AC contactor KM1 is energized, and the normally open contact of the AC contactor KM1 is closed. Figure 1 The normally closed contacts 1L1 / 2L2 and PE, and KM1 are disconnected. Analysis of the electrical schematic shows that the mobile aerial work platform can be charged from a 380V work platform. Since the normally closed contacts of AC contactor KM1 are disconnected, the coil of AC contactor KM2 cannot receive power, and therefore the normally open contacts of AC contactor KM2 cannot close. Therefore, the 220V charging socket cannot charge the mobile aerial work platform, similarly implementing the self-locking function of the control logic. Therefore, this patent can solve the problem of a single industrial power distribution cabinet.

[0066] The above specific embodiments do not limit the scope of protection of this utility model. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model shall be included within the scope of protection of this utility model.

Claims

1. A charging device, characterized in that: include: Three-phase five-core industrial socket (1), single-phase three-core industrial socket (2), three-phase AC contactor (4), charger (5), single-phase AC contactor (6), self-reset button switch (7); The three-phase five-core industrial socket (1) is connected to the charger (5) via the three-phase AC contactor (4); The single-phase three-core industrial socket (2) is connected to the charger (5) via the single-phase AC contactor (6); The three-phase AC contactor (4) and the single-phase AC contactor (6) are interlocked; The three-phase AC contactor (4) is connected to the self-resetting button switch (7); The single-phase AC contactor (6) is connected to the self-resetting button switch (7); The II position of the self-resetting button switch (7) is connected to the single-phase AC contactor (6); The III position of the self-resetting button switch (7) is connected to the three-phase AC contactor (4).

2. The charging device according to claim 1, characterized in that The single-phase three-core industrial socket (2) is connected to the single-phase AC contactor (6) via a leakage protector (3).

3. The charging device according to claim 2, characterized in that The first phase conductor of the three-phase five-core industrial socket (1) is connected to the first phase interface of the three-phase AC contactor, and the first phase interface of the three-phase AC contactor is connected to the first phase pin (L1) of the charger; The second phase conductor of the three-phase five-core industrial socket (1) is connected to the second phase interface (1L2) of the three-phase AC contactor, and the second phase interface (1L2) of the three-phase AC contactor is connected to the second phase pin (L2 / N) of the charger; The third phase conductor of the three-phase five-core industrial socket (1) is connected to the preset terminal of the three-phase AC contactor (4); The grounding wire of the three-phase five-core industrial socket (1) is connected to the grounding interface (PE) of the three-phase AC contactor (4), and the grounding interface (PE) of the three-phase AC contactor (4) is connected to the grounding interface (PE) of the charger (5).

4. The charging device according to claim 3, characterized in that The first phase conductor of the single-phase three-core industrial socket (2) is connected to the first phase interface of the single-phase AC contactor through the leakage protector (3); the first phase interface of the single-phase AC contactor is connected to the first phase pin (L1) of the charger; The neutral line phase conductor of the single-phase three-core industrial socket (2) is connected to the neutral line interface (N) of the single-phase AC contactor (6) through the leakage protector (3); the neutral line interface (N) of the single-phase AC contactor (6) is connected to the second phase pin (L2 / N) of the charger; The grounding phase conductor of the single-phase three-core industrial socket (2) is connected to the grounding interface (PE) of the single-phase AC contactor (6) through the leakage protector (3); the grounding interface (PE) of the single-phase AC contactor (6) is connected to the grounding interface (PE) of the charger (5).

5. The charging device according to claim 4, characterized in that The self-resetting button switch (7) is a three-gear six-position self-resetting button switch.

6. The charging device according to claim 5, characterized in that One end of the three-phase AC contactor KM1 coil is connected to the second phase interface (1L2) of the three-phase AC contactor, and the other end is connected to the ninth pin (79) in the III position of the self-resetting button switch (7).

7. The charging device according to claim 5, characterized in that One end of the contactor KM2 coil of the single-phase AC contactor is connected to the zero line interface (N) of the single-phase AC contactor (6), and the other end is connected to the second pin (72) in the I position of the self-resetting button switch (7).

8. The charging device according to claim 5, characterized in that The fifth pin (75) in gear I of the self-resetting button switch (7) is connected to 80V-; The eighth pin (78) in gear I of the self-resetting button switch (7) is connected to the first phase interface of the three-phase AC contactor.

9. The charging device according to claim 5, characterized in that The fourth pin (74) in the II position of the self-resetting button switch (7) is connected to the 16A output pin of the charger (5); The first pin (71) in gear II of the self-resetting button switch (7) is connected to the first phase interface of the single-phase AC contactor.

10. The charging device according to claim 5, characterized in that The sixth pin (76) in the III position of the self-resetting button switch (7) is connected to the 32A output pin of the charger (5).

Images