CN215153970U - Loading machine - Google Patents

Loading machine Download PDF

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Publication number
CN215153970U
CN215153970U CN202121059768.8U CN202121059768U CN215153970U CN 215153970 U CN215153970 U CN 215153970U CN 202121059768 U CN202121059768 U CN 202121059768U CN 215153970 U CN215153970 U CN 215153970U
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China
Prior art keywords
interface
battery
loader
power supply
battery pack
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Active
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CN202121059768.8U
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Chinese (zh)
Inventor
张建
薛伟
孟令磊
王伟
张明颖
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Shandong Lingong Construction Machinery Co Ltd
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Shandong Lingong Construction Machinery Co Ltd
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Priority to CN202121059768.8U priority Critical patent/CN215153970U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model discloses a loader. It comprises a front frame and a tail mechanical structure; the tail mechanical structure is detachably connected with the front frame; a battery replacing system is arranged on the tail mechanical structure and comprises a battery pack, a power distribution assembly and an interface; the power distribution assembly is connected between the battery pack and the interface, the interface is used for being electrically connected with the front frame, and the battery pack supplies power to the loader through the interface and charges through the interface. This scheme utilization loader afterbody mechanical structure fully arranges a plurality of groups group battery, has improved the electric power storage capacity of group battery to improve the duration of a journey ability of loader, and then improve the work efficiency of loader. When the electric energy of the power exchanging system is insufficient, the interface and the tail mechanical structure can be disconnected with the loader at the same time, the tail mechanical structure is detached from the loader, the standby full-power tail mechanical structure is replaced, the charging time of the power exchanging system is saved, the loader can continue to work, and the operating efficiency of the loader is further improved.

Description

Loading machine
Technical Field
The embodiment of the utility model provides a relate to operation machinery technical field, especially relate to a loader.
Background
The electric loader adopts the battery pack with high unit energy density to replace a diesel engine, so that power is provided for the whole vehicle, the conversion efficiency value of the power of the electric loader can be greatly improved, the electric loader uses electric energy to work, the speed is increased quickly, the noise is low, zero emission and no pollution can be realized, the requirements of energy conservation, emission reduction and environmental protection can be met, and the electric loader adopting the battery pack as a power source has wide application prospect.
The cruising ability and the operating efficiency of the electric loader are limited by the electrical storage performance of the battery. The power required when the present electric loader works is big, and the energy consumption of group battery is fast, needs frequent the rechargeable battery group. The long charging time of the electric loader causes the endurance of the electric loader to be poor, and further causes the low working efficiency of the electric loader.
SUMMERY OF THE UTILITY MODEL
The utility model provides a loader to improve the electric power storage capacity of group battery, thereby improve electric loader's duration, and then improve electric loader's work efficiency.
In a first aspect, an embodiment of the present invention provides a loader, which includes a front frame and a rear mechanical structure; the tail mechanical structure is detachably connected with the front frame; a battery replacing system is arranged on the tail mechanical structure and comprises a battery pack, a power distribution assembly and an interface;
the power distribution assembly is connected between the battery pack and the interface, the interface is used for being electrically connected with the front frame, and the battery pack supplies power to the loader through the interface and charges through the interface.
Optionally, the power distribution assembly comprises a battery controller and a power distribution module, wherein the power distribution module comprises a main positive power supply end, a main negative power supply end, a direct current charging positive end, a direct current charging negative end, a first battery connection end and a second battery connection end; the interface comprises a charging interface, a whole machine high-voltage total positive interface and a whole machine high-voltage total negative interface;
the main positive power supply end is connected with a first battery connecting end, and the first battery connecting end is connected with the positive electrode of the battery pack;
the main negative power supply end is connected with a second battery connecting end through a first control switch, and the second battery connecting end is connected with the negative electrode of the battery pack;
the direct current charging positive end is connected with a connecting circuit between the main positive power supply end and the first battery connecting end through a second control switch;
the direct current charging negative terminal is connected with a connecting circuit between the first control switch and the second battery connecting terminal through a third control switch;
the main positive power supply end and the main negative power supply end are respectively connected with the whole machine high-voltage total positive interface and the whole machine high-voltage total negative interface, and the direct current charging positive end and the direct current charging negative end are connected with the charging interface.
Optionally, the whole high-voltage total positive interface and the whole high-voltage total negative interface are located on one side, close to the front frame, of the tail mechanical structure, and the charging interface is located on one side, far away from the front frame, of the tail mechanical structure.
Optionally, the power distribution module further comprises a first water-cooling connection end and a second water-cooling connection end; the power distribution assembly further comprises a water cooling unit, and the water cooling unit comprises a first power supply input end and a second power supply input end;
the first water-cooling connecting end is connected with a connecting circuit between the main positive power supply end and the first battery connecting end through a fourth control switch;
the second water-cooling connecting end is connected with a connecting circuit between the first control switch and the second battery connecting end;
the first power supply input end and the second power supply input end are respectively connected with the first water-cooling connecting end and the second water-cooling connecting end.
Optionally, the first control switch, the second control switch, the third control switch and the fourth control switch all adopt relays, and the battery controller is used for controlling the power-on or power-off of the relays.
Optionally, the power distribution module further comprises a first heating output and a second heating input;
the first heating output end is connected with a connecting circuit between the main positive power supply end and the first battery connecting end through a fifth control switch, and the first heating output end is connected with a first heating power supply end of the battery pack;
the second heating input end is connected with a connecting circuit between the first control switch and the second battery connecting end through a sixth control switch, and the second heating input end is connected with a second heating power supply end of the battery pack.
Optionally, the loader further comprises an alarm module, connected to the battery controller, for alarming when the battery pack is low in power.
Optionally, the interface further comprises a communication connection interface; the battery controller is connected with the communication connection interface;
and a protection switch is connected in series on a circuit between the main positive power supply end and the first battery connecting end.
Optionally, a current sensor is connected in series on the line between the primary negative supply terminal and the second battery connection terminal.
Optionally, the interface is removably attachable to the loader.
The embodiment of the utility model provides a, design into anterior frame and afterbody mechanical structure two parts with the loader to afterbody mechanical structure can dismantle with anterior frame and be connected, is convenient for dismantle from the complete machine to afterbody mechanical structure. The battery pack, the power distribution assembly and the interface are designed into an integrated power supply device by adopting a modular design. When the electric energy of the battery replacing system is insufficient, the interface and the tail mechanical structure can be disconnected from the loader at the same time, the tail mechanical structure is detached from the loader, the tail mechanical structure which is full of electricity for standby can replace the tail mechanical structure with insufficient electric energy, the charging time of the battery replacing system waiting for the loader is saved, the loader can continue to work, and the operation efficiency of the loader is improved. Because the tail mechanical structure of the electric loader adopts an integrated design, the tail mechanical structure of the electric loader can be efficiently and conveniently replaced, and the use safety of the loader is improved. Compare the group battery setting in current loader, this design utilizes loader afterbody mechanical structure, fully arranges a plurality of groups group battery, improves the electric power storage capacity of group battery, reduces frequently charging to the group battery, improves the duration of a journey ability of loader to improve the work load efficiency of loader.
Drawings
Fig. 1 is a schematic structural diagram of a loader according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a battery swapping system provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another battery swapping system provided in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of another battery swapping system provided in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of another battery swapping system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The embodiment of the utility model provides a loader, figure 1 is the utility model provides a pair of structure schematic diagram of loader, figure 2 is the utility model provides a pair of structure schematic diagram of trading electric system. Referring to fig. 1 and 2, a loader includes a front frame and a rear mechanical structure; the tail mechanical structure is detachably connected with the front frame; the tail mechanical structure is provided with a battery replacement system 100, and the battery replacement system 100 comprises a battery pack 110, a power distribution assembly 120 and an interface 130; the power distribution assembly 120 is connected between the battery pack 110 and an interface 130, the interface 130 is used for electrically connecting the front frame, and the battery pack 110 supplies power to the loader through the interface 130 and is charged through the interface 130.
The loader is designed into a front frame and a tail mechanical structure, the tail mechanical structure is detachably connected with the front frame, and the tail mechanical structure is conveniently detached from the loader. The tail mechanical structure of the design is provided with a battery replacing system 100, and the battery replacing system 100 is arranged on the loader as a power supply system and used for providing electric energy for the loader. When the electric quantity of the battery replacement system 100 is insufficient, that is, the loader needs to replace the battery, the tail mechanical structure can be detached from the loader, and an external standby tail mechanical structure is replaced to continuously provide electric energy for the loader. Specifically, the battery replacement system 100 arranged on the mechanical structure at the tail of the loader is a power supply device which integrates the battery pack 110, the power distribution assembly 120 and the interface 130 into a whole by adopting a modular design, so that the structural design of the battery replacement system 100 can be simplified, and the maintenance and the service of the battery replacement system can be facilitated. The battery pack 110 includes a plurality of rechargeable battery packs, including, for example, a battery 1, a battery pack 2, a battery pack 3, a battery pack 4, a battery pack 5, and a battery pack 6. The configuration of the plurality of groups of battery packs forms the large-capacity battery pack 110, the power storage capacity of the battery pack 110 is fully ensured, and the influence of frequent charging or battery replacement of the loader on the working efficiency can be reduced. The interface 130 is a channel for communicating different components, and the interface 130 can enable the battery replacing system 100 to be electrically connected with the front frame, so that the battery pack 110 supplies power to the loader through the interface 130. In addition, the interface 130 can also communicate the battery replacement system 100 with an external power source, so that the battery pack 110 can be charged and stored through the interface 130. For example, the interface 130 may include a total high voltage positive interface, a total high voltage negative interface, and a charging interface. The whole machine high-voltage total positive interface and the whole machine high-voltage total negative interface are channels for connecting the battery replacing system 100 and the loader, and the battery pack 110 can provide electric energy for the loader through the whole machine high-voltage total positive interface and the whole machine high-voltage total negative interface. The charging interface is a connection channel between the battery charging system 100 and an external power source, and the battery pack 110 can perform charging energy storage through the charging interface. The power distribution assembly 120 is connected between the battery pack 110 and the interface 130, and the power distribution assembly 120 can ensure normal power supply of the loader from the battery pack 110 and normal charging of the battery pack 110 when the battery pack 110 is low. For example, the power distribution assembly 120 may include a battery controller, a power distribution module, and a water chiller. The battery controller may detect charge and discharge information of the battery pack 110 and state information of the battery pack 110, and may also transmit the detected charge and discharge information and state information of the battery pack 110 to other modules. The water cooling unit may be installed around the battery pack 110, and when the temperature of the battery pack 110 is too high, the temperature of the battery pack 110 may be lowered to prevent the battery pack 110 from being damaged due to overheating. The power distribution module is equivalent to an intermediate junction, and different modules can be connected according to the requirement.
For example, when the battery pack 110 is in a discharging or charging state, the battery controller detects that the temperature of the battery pack 110 is too high, the battery controller controls the power distribution module to connect a connection channel between the water chilling unit and the battery pack 110, so that the water chilling unit can be connected with the battery pack 110 through the power distribution module, the battery pack 110 supplies power to the water chilling unit, and the water chilling unit is started to cool the battery pack 110. The battery pack 110 is connected with the overall high-voltage total positive interface and the overall high-voltage total negative interface through the power distribution module, and provides electric energy for the loader. Meanwhile, the battery controller is connected with the battery pack 110, and the battery controller can transmit real-time information of the battery pack 110 to the complete machine high-voltage total positive interface and the complete machine high-voltage total negative interface, so that current and voltage output by the battery pack 110 to the complete machine high-voltage total positive interface and the complete machine high-voltage total negative interface are controlled. When the battery pack 110 is in a charging state, the battery pack 110 is connected to the charging interface through the power distribution module. Meanwhile, the battery controller is connected to the battery pack 110, and the battery controller may transmit real-time information of the battery pack 110 to the charging interface, thereby controlling the charging voltage and current of the battery pack 110. When the electric quantity of the electricity exchanging system 100 on the loader is insufficient, the interface 130 and the tail mechanical structure can be disconnected from the loader at the same time, the tail mechanical structure is detached from the loader, the spare full-electricity tail mechanical structure replaces the tail mechanical structure with insufficient electric quantity, the charging time of the electricity exchanging system 100 can be saved, the loader can continue to work, and the operation efficiency of the loader is improved. And then the disassembled tail mechanical structure is connected with an external power supply through the charging interface, and the power distribution module is communicated with the connection channel between the battery pack 110 and the charging interface, so that the external power supply charges the battery pack 110. Because the tail mechanical structure of the electric loader adopts an integrated design, the tail mechanical structure of the electric loader can be efficiently and conveniently replaced, and the use safety of the loader is improved. Compare in the group battery setting of current loader, this design utilizes loader afterbody mechanical structure, and a plurality of groups of group batteries of fully arranging guarantee group battery 110's electric power storage ability, reduce frequently charging to group battery 110 to improve the work load efficiency of loader.
Fig. 3 is a schematic structural diagram of another battery replacing system according to an embodiment of the present invention, as shown in fig. 3, the power distribution assembly includes a battery controller 121 and a power distribution module 122, and the power distribution module 122 includes a main positive power supply terminal 1, a main negative power supply terminal 2, a dc charging positive terminal 3, a dc charging negative terminal 4, a first battery connection terminal a1, and a second battery connection terminal a 2; the interfaces comprise a charging interface 131, a whole machine high-voltage total positive interface 132 and a whole machine high-voltage total negative interface 133; the main positive power supply terminal 1 is connected with a first battery connection terminal A1, and the first battery connection terminal A1 is connected with the positive electrode B1 of the battery pack 110; the main negative power supply terminal 2 is connected with a second battery connection terminal A2 through a first control switch K1, and the second battery connection terminal A2 is connected with a negative electrode B2 of the battery pack 110; the direct current charging positive terminal 3 is connected with a connecting line between the main positive power supply terminal 1 and the first battery connecting terminal A1 through a second control switch K2; the direct current charging negative terminal 4 is connected with a connecting line between the first control switch K1 and the second battery connecting terminal A2 through a third control switch K3; the main positive power supply terminal 1 and the main negative power supply terminal 2 are respectively connected with the overall machine high-voltage total positive interface 132 and the overall machine high-voltage total negative interface 133, and the direct-current charging positive terminal 3 and the direct-current charging negative terminal 4 are connected with the charging interface 131.
The power distribution assembly comprises a battery controller 121 and a power distribution module 122, wherein the power distribution module 122 can connect different modules, and comprises a main positive power supply end 1, a main negative power supply end 2, a direct-current charging positive end 3, a direct-current charging negative end 4, a first battery connection end A1 and a second battery connection end A2; the overall high-voltage total positive interface 132 and the overall high-voltage total negative interface 133 included in the interfaces are channels for connecting the battery replacing system and the loader, and the charging interface 131 included in the interfaces is a channel for connecting the battery replacing system and an external power supply. The overall high-voltage total positive interface 132 is a power supply positive interface of the loader, and the overall high-voltage total negative interface 133 is a power supply negative interface of the loader. Specifically, when the loader and the battery replacement system are connected in an interface mode, the positive electrode B1 of the battery pack 110 is connected with the first battery connection end a1, the first battery connection end a1 is connected with the main positive power supply end 1, and the main positive power supply end 1 is connected with the overall high-voltage main positive interface 132; the negative electrode B2 of the battery pack 110 is connected with a second battery connection end a2, the second battery connection end a2 is connected with the main negative power supply end 2 through a first control switch K1, and the main negative power supply end 2 is connected with the overall high-voltage total negative interface 133. When the first control switch K1 is closed, the battery pack 110 may be connected to the overall high voltage main positive interface 132 and the overall high voltage main negative interface 133 of the interfaces through the power distribution module 122, and at this time, the battery pack 110 is in a discharge state, and may provide high voltage power for the loader. When the charging interface 131 is connected with the battery changing system, the positive electrode B1 of the battery pack 110 is connected with the first battery connection end a1, and the first battery connection end a1 is connected with the direct-current charging positive terminal 3 through the second control switch K2; the negative electrode B2 of the battery pack 110 is connected to the second battery connection terminal a2, and the second battery connection terminal a2 is connected to the dc charging negative terminal 4 through the third control switch K3; the dc charging positive terminal 3 and the dc charging negative terminal 4 are connected to the charging interface 131. When the second control switch K2 and the third control switch K3 are closed simultaneously, the charging interface 131 can be connected to the battery pack 110 through the power distribution module 122 to provide power to the battery pack 110, so that the battery pack 110 is in a charging state.
Optionally, the whole high-voltage total positive interface and the whole high-voltage total negative interface are located on one side, close to the front frame, of the tail mechanical structure, and the charging interface is located on one side, far away from the front frame, of the tail mechanical structure.
The battery pack can provide electric energy for a front frame of the loader through the whole machine high-voltage total positive interface and the whole machine high-voltage total negative interface. The whole machine high-voltage total positive interface and the whole machine high-voltage total negative interface are arranged on one side, close to the front frame, of the tail mechanical structure, so that the whole machine high-voltage total positive interface and the whole machine high-voltage total negative interface on the tail mechanical structure can be conveniently connected with the front frame, and the circuit design is simplified. The charging interface is a channel for connecting the battery exchange system and an external power supply, the battery pack can perform charging energy storage through the charging interface, and the charging interface is arranged on one side of the tail mechanical structure, which is far away from the front frame, namely the outermost edge side of the tail mechanical structure, so that the circuit design can be simplified, and the charging of the battery exchange system is facilitated. In addition, when the electric quantity of the power exchanging system is insufficient, the tail mechanical structure is detached to perform charging and energy supplementing, the tail mechanical structure can be installed on a loader to be directly connected with a charging interface to perform charging, and the charging interface is arranged on one side, far away from the front frame, of the tail mechanical structure, so that the power exchanging system can be charged conveniently.
With continued reference to fig. 3, the power distribution module 122 further includes a first water-cooled connection A3 and a second water-cooled connection a 4; the power distribution assembly further comprises a water chiller unit 123, wherein the water chiller unit 123 comprises a first power supply input end C1 and a second power supply input end C2; the first water-cooling connecting end A3 is connected with a connecting line between the main positive power supply end 1 and the first battery connecting end A1 through a fourth control switch K4; the second water-cooling connecting end A4 is connected with a connecting line between the first control switch K1 and the second battery connecting end A2; the first power supply input end C1 and the second power supply input end C2 are respectively connected with the first water-cooling connecting end A3 and the second water-cooling connecting end A4.
When the battery controller 121 detects that the temperature of the battery pack 110 is too high, the battery controller 121 controls the power distribution module 122 to conduct a connecting channel between the water cooling unit 123 and the battery pack 110, so that the battery pack 110 supplies power to the water cooling unit 123 through the power distribution module 122, and the water cooling unit 123 is started to cool the battery pack 110. Specifically, the power distribution module 122 further includes a first water-cooled connection A3 and a second water-cooled connection a 4. The water chiller 123 has a first power input C1 and a second power input C2, and the water chiller 123 may be disposed in contact with the battery pack 110. The positive electrode B1 of the battery pack 110 is connected with a first battery connection end a1, the first battery connection end a1 is connected with a first water-cooling connection end A3 through a fourth control switch K4, and the first water-cooling connection end A3 is connected with a first power supply input end C1; the negative electrode B2 of the battery pack 110 is connected to the second battery connection end a2, the second battery connection end a2 is connected to the second water-cooling connection end a4, and the second water-cooling connection end a4 is connected to the second power supply input end C2. When the fourth control switch K4 is closed, the battery pack 110 may supply power to the water cooling unit 123 through the power distribution module 122, and the water cooling unit 123 is started to cool the battery pack 110.
It should be noted that the water chiller unit 123 may be disposed around the battery pack 110, wrapped around the battery pack 110, or disposed in contact with the battery pack 110, and a designer may adjust the position according to specific actual needs, which is not limited by the embodiments of the present disclosure.
With continued reference to fig. 3, the first control switch K1, the second control switch K2, the third control switch K3 and the fourth control switch K4 all employ relays, and the battery controller 121 is configured to control power-on or power-off of the relays.
The first control switch K1, the second control switch K2, the third control switch K3 and the fourth control switch K4 are relays, and the power distribution module 122 can control the power-on or power-off of the relays, so that the first control switch K1, the second control switch K2, the third control switch K3 and the fourth control switch K4 are controlled to be opened and closed. Illustratively, the first control switch K1 is a first relay, the second control switch K2 is a second relay, the third control switch K3 is a third relay, and the fourth control switch K4 is a fourth relay. When the battery controller 121 detects that the battery pack 110 can output electric energy to the overall high-voltage overall positive interface 132 and the overall high-voltage overall negative interface 133, the first relay is controlled to be powered on, that is, the first control switch K1 is controlled to be closed, so that the battery pack 110 can be connected with the overall high-voltage overall positive interface 132 and the overall high-voltage overall negative interface 133 through the power distribution module 122 to provide high voltage electricity for the loader. When the battery controller 121 detects that the battery pack 110 is to be charged, the second relay and the third relay are controlled to be powered on, that is, the second control switch K2 and the third control switch K3 are controlled to be closed simultaneously, so that the charging interface 131 can be connected with the battery pack 110 through the power distribution module 122 to charge the battery pack 110. When the battery controller 121 detects that the temperature of the battery pack 110 is too high, the fourth relay is controlled to be powered on, that is, the fourth control switch K4 is controlled to be closed, so that the battery pack 110 can supply power to the water cooling unit 123 through the power distribution module 122, and the water cooling unit 123 is started to cool the battery pack 110.
With continued reference to fig. 3, the power distribution module 122 further includes a first heating output a5 and a second heating input a 6; the first heating output end A5 is connected with a connecting line between the main positive power supply end 1 and the first battery connecting end A1 through a fifth control switch K5, and the first heating output end A5 is connected with a first heating power supply end B3 of the battery pack 110; the second heating input terminal a6 is connected to the connection line between the first control switch K1 and the second battery connection terminal a2 through a sixth control switch K6, and the second heating input terminal a6 is connected to the second heating power supply terminal B4 of the battery pack 110.
Among them, charging and discharging the battery pack 110 under low temperature conditions may impair the life of the battery pack 110, and thus, it is necessary to perform a preheating treatment before charging and discharging the battery pack 110 under low temperature conditions. Specifically, the power distribution module 122 includes a first heating output a5 and a second heating input a 6. The first heating power supply terminal B3 of the battery pack 110 is connected to the first heating output terminal a5, and the first heating output terminal a5 is connected to the dc charging positive terminal 3 through the fifth control switch K5 and the second control switch K2; the second heating power supply terminal B4 of the battery pack 110 is connected to the second heating input terminal a6, and the second heating input terminal a6 is connected to the dc charging negative terminal 4 through the sixth control switch K6 and the third control switch K3; the dc charging positive terminal 3 and the dc charging negative terminal 4 are connected to the charging interface 131. When the battery controller 121 detects that the temperature of the battery pack 110 is too low, the second control switch K2, the third control switch K3, the fifth control switch K5 and the sixth control switch K6 are controlled to be simultaneously closed, so that the first heating output end a5 and the second heating input end a6 on the battery pack 110 are connected with the charging interface 131 to heat the battery pack 110, and after the temperature of the battery pack 110 reaches a normal temperature range, the fifth control switch K5 and the sixth control switch K6 are disconnected to charge the battery pack 110.
Fig. 4 is a schematic structural diagram of another battery replacement system according to an embodiment of the present invention, and as shown in fig. 4, the loader further includes an alarm module 140, and the alarm module 140 is connected to the battery controller 121 and is used for alarming when the battery pack 110 is short of electric quantity.
The alarm module 140 included in the power supply system is connected to the battery controller 121. An alarm is given when the battery controller 121 detects that the battery pack 110 is low. For example, the alarm module 140 may be an indicator light, and the state of charge of the battery pack 110 may be indicated by turning on or off the indicator light or the brightness of the indicator light. The alarm module 140 may be a buzzer, and may alarm the battery pack 110 that the electric quantity is insufficient by whistling.
It should be noted that the above embodiments are merely exemplary to show that the alarm module 140 may be configured as an indicator light or a buzzer. In other embodiments, the related personnel can set the related personnel according to actual needs, and the embodiment of the disclosure does not limit the related personnel.
Fig. 5 is a schematic structural diagram of another battery swapping system according to an embodiment of the present invention, as shown in fig. 5, the interface 130 further includes a communication connection interface 134; the battery controller 121 is connected with the communication connection interface 134; a protection switch K is connected in series on a line between the main positive power supply end 1 and the first battery connecting end A1.
The interface 130 further includes a communication connection interface, which can transmit data information. Specifically, the battery controller 121 is connected to a communication connection interface, so that the battery controller 121 can communicate with a loader or an external power source through the communication connection interface. The circuit between main positive feed end 1 and first battery connection end A1 has concatenated protection switch K, and when the electric current between main positive feed end 1 and the first battery connection end A1 exceeded the system threshold value, protection switch K can automatic disconnection, prevented that circuit electric current from too big burning out the circuit. When the short circuit risk exists in the connection line between the main positive power supply terminal 1 and the first battery connection terminal a1 or the line is maintained, the protection switch K can be manually closed to cut off the high-voltage power supply provided by the battery pack 110 to the whole machine, so as to ensure the safety of the loader and the maintenance personnel.
With continued reference to fig. 5, a current sensor P is connected in series in the line between the primary negative supply terminal 2 and the second battery connection terminal a 2.
The current sensor P is connected in series on the line between the main negative power supply terminal 2 and the second battery connection terminal a2, and can detect the power supply current information of the battery pack 110 to the whole high-voltage total negative interface.
Optionally, the interface is removably attachable to the loader.
The battery replacing system is connected with the loader through the interface, so that the battery pack provides electric energy for the loader through the interface. The interface can be dismantled and connect the loader, when trading electric system electric quantity not enough, not only need break off the connection of afterbody mechanical structure and complete machine, still need to break off the connection of interface and complete machine. The tail mechanical structure is detached, and the outer spare tail mechanical structure is replaced to continuously provide electric energy for the loader, so that the continuity of the whole machine operation is guaranteed, and the operation efficiency of the loader is improved.
The above-mentioned product can be carried out the utility model discloses the method that the arbitrary embodiment provided possesses corresponding functional module of execution method and beneficial effect.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A loader is characterized by comprising a front frame and a tail mechanical structure; the tail mechanical structure is detachably connected with the front frame; a battery replacing system is arranged on the tail mechanical structure and comprises a battery pack, a power distribution assembly and an interface;
the power distribution assembly is connected between the battery pack and the interface, the interface is used for being electrically connected with the front frame, and the battery pack supplies power to the loader through the interface and is charged through the interface.
2. The loader of claim 1, wherein the power distribution assembly comprises a battery controller and a power distribution module comprising a primary positive power supply terminal, a primary negative power supply terminal, a positive dc charging terminal, a negative dc charging terminal, a first battery connection terminal and a second battery connection terminal; the interface comprises a charging interface, a whole machine high-voltage total positive interface and a whole machine high-voltage total negative interface;
the main positive power supply end is connected with the first battery connecting end, and the first battery connecting end is connected with the positive electrode of the battery pack;
the main negative power supply end is connected with the second battery connecting end through a first control switch, and the second battery connecting end is connected with the negative electrode of the battery pack;
the direct current charging positive end is connected with a connecting circuit between the main positive power supply end and the first battery connecting end through a second control switch;
the direct current charging negative terminal is connected with a connecting line between the first control switch and the second battery connecting terminal through a third control switch;
the main positive power supply end and the main negative power supply end are respectively connected with the overall machine high-voltage total positive interface and the overall machine high-voltage total negative interface, and the direct-current charging positive end and the direct-current charging negative end are connected with the charging interface.
3. The loader of claim 2, wherein the total high voltage total positive interface and the total high voltage total negative interface are located on a side of the rear mechanical structure that is closer to the front frame, and the charging interface is located on a side of the rear mechanical structure that is farther from the front frame.
4. The loader of claim 2, wherein the power distribution module further comprises a first water cooled connection end and a second water cooled connection end; the power distribution assembly further comprises a water cooling unit, and the water cooling unit comprises a first power supply input end and a second power supply input end;
the first water-cooling connecting end is connected with a connecting circuit between the main positive power supply end and the first battery connecting end through a fourth control switch;
the second water-cooling connecting end is connected with a connecting circuit between the first control switch and the second battery connecting end;
and the first power supply input end and the second power supply input end are respectively connected with the first water-cooling connecting end and the second water-cooling connecting end.
5. The loader of claim 4, wherein said first control switch, said second control switch, said third control switch and said fourth control switch each employ a relay, and said battery controller is configured to control power on or off of said relays.
6. The loader of claim 2, wherein the power distribution module further comprises a first heating output and a second heating input;
the first heating output end is connected with a connecting circuit between the main positive power supply end and the first battery connecting end through a fifth control switch, and the first heating output end is connected with a first heating power supply end of the battery pack;
the second heating input end is connected with a connecting circuit between the first control switch and the second battery connecting end through a sixth control switch, and the second heating input end is connected with a second heating power supply end of the battery pack.
7. The loader of claim 2, further comprising an alarm module coupled to said battery controller for alarming when the battery pack is low.
8. The loader of claim 2, in which said interface further comprises a communication connection interface; the battery controller is connected with the communication connection interface;
and a protection switch is connected in series on a circuit between the main positive power supply end and the first battery connecting end.
9. The loader of claim 8, wherein a current sensor is connected in series on the line between the primary negative supply terminal and the second battery connection terminal.
10. The loader of claim 1, wherein said interface removably connects said loader.
CN202121059768.8U 2021-05-18 2021-05-18 Loading machine Active CN215153970U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113119757A (en) * 2021-05-18 2021-07-16 山东临工工程机械有限公司 Loading machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113119757A (en) * 2021-05-18 2021-07-16 山东临工工程机械有限公司 Loading machine

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