Charging and discharging equipment and vehicle

Abstract

The invention provides charging and discharging equipment and a vehicle, the charging and discharging equipment comprises a charging and discharging gun, a plug, a transmission circuit, a shell and a wire harness storage device, and the charging and discharging gun is used for being connected with a connector on the vehicle; the plug is connected with an external power supply; two ends of the transmission circuit are respectively connected with the charge-discharge gun and the plug; a cavity is formed in the shell, an opening is formed in the surface of the shell, and the opening is communicated with the cavity; the wire harness storage device is arranged in the cavity, and the wire harness storage device is connected with the plug; the charging and discharging equipment has a charging state and a non-charging state which are opposite, and in the charging state, the plug penetrates through the opening and is located outside the shell; and in a non-charging state, the wire harness accommodating device accommodates the plug in the cavity. According to the invention, the potential safety hazard in an uncharged state is reduced, and the use safety is improved.

Description

Technical Field

[0001] This application relates to vehicle manufacturing technology, and particularly to a charging and discharging device and a vehicle. Background Art

[0002] The charging and discharging device includes a charging device and a discharging device, which are the main components of new energy vehicles. Among them, the charging device can electrically connect the vehicle to an external power source to charge the vehicle; the discharging device can electrically connect the vehicle to an external load to supply the electrical energy stored in the vehicle for the external load to use.

[0003] Traditional charging devices and discharging devices are independent of each other, occupying more space and being inconvenient to use. With the development of technology, a charging and discharging device is provided in the related art solutions. This device integrates the charging device and the discharging device into one, which can meet the needs of vehicle charging and discharging at the same time, not only saving space but also facilitating the use of users.

[0004] However, in the related art, the plug of the charging and discharging device is exposed outside for a long time, which is likely to cause potential safety hazards. Summary of the Invention

[0005] In order to overcome the above defects in the related art, the purpose of this application is to provide a charging and discharging device and a vehicle. The plug of this application can be stored in the housing when not in use, which is beneficial to reducing potential safety hazards and improving the safety of use.

[0006] On the one hand, this application provides a charging and discharging device, including:

[0007] A charging and discharging gun, which is used to connect to a connector on the vehicle;

[0008] A plug, which is used to connect to an external power source;

[0009] A transmission circuit, with both ends of the transmission circuit respectively connected to the charging and discharging gun and the plug;

[0010] A housing, part of the transmission circuit passes through the housing, a cavity is formed inside the housing, and an opening is formed on the surface of the housing, and the opening is communicated with the cavity;

[0011] A wire harness storage device, which is arranged in the cavity, and the wire harness storage device is connected to the plug;

[0012] The charging and discharging device has opposite charging states and non-charging states. In the charging state, the plug passes through the opening and is located outside the housing; in the non-charging state, the wire harness storage device stores the plug in the cavity.

[0013] In a possible implementation, the wire harness storage device includes a winding disk, a locking member, and a first elastic reset member; a winding shaft is provided in the cavity, the winding disk is rotatably arranged on the winding shaft, a charging wire harness is wound on the winding disk, a first end of the charging wire harness is electrically connected to the plug, and a second end of the charging wire harness is electrically connected to the transmission circuit; the locking member is connected to the winding disk, and the locking member is used to lock or release the winding disk; the first elastic reset member is sleeved on the winding shaft, a first end of the first elastic reset member is fixedly connected to the winding disk, and a second end of the first elastic reset member is fixedly connected to the housing;

[0014] In the charging state, the locking member locks the winding disk, and the winding disk is relatively fixed to the winding shaft so that the plug maintains its current position; in the non-charging state, the locking member releases the winding disk, and the first elastic reset member drives the winding disk to rotate around the winding shaft to store the plug in the cavity.

[0015] In a possible implementation, the locking member includes a first locking member and a second locking member, the first locking member is fixedly connected to the winding disk, and the first locking member includes a plurality of clamping portions and a plurality of unlocking portions;

[0016] In the charging state, the second locking member is located within the clamping portion, and the first locking member is clamped with the second locking member so that the winding disk is relatively fixed to the winding shaft;

[0017] In the non-charging state, the second locking member is located within the unlocking portion, the first locking member and the second locking member are separated from each other, and the first elastic reset member drives the winding disk to rotate around the winding shaft to store the plug in the cavity.

[0018] In a possible implementation, the first locking member includes a ratchet wheel, a plurality of ratchet tooth groups and a plurality of tooth grooves are provided on the outer peripheral side of the ratchet wheel, the tooth grooves are located between two adjacent ratchet tooth groups, the tooth grooves form the unlocking portions, each ratchet tooth group includes a plurality of ratchet teeth, and two adjacent ratchet teeth form the clamping portions;

[0019] The second locking member includes a wedge block, a wedge block shaft is provided in the cavity, and the wedge block is rotatably sleeved on the wedge block shaft;

[0020] In the charging state, the wedge block is located between two adjacent ratchet teeth, and the first locking member is clamped with the second locking member so that the winding disk is relatively fixed to the winding shaft;

[0021] In the uncharged state, the wedge block is located within the tooth groove, the first locking member and the second locking member are separated from each other, and the first elastic reset member drives the winding disc to rotate around the winding shaft so as to receive the plug within the cavity.

[0022] In a possible implementation, the wire harness storage device further includes a second elastic reset member. The second elastic reset member is sleeved on the wedge block shaft. A first end of the second elastic reset member is fixedly connected to the wedge block, and a second end of the second elastic reset member is fixedly connected to the housing.

[0023] In the uncharged state, the second elastic reset member drives the wedge block to rotate so that the wedge block is located within the tooth groove.

[0024] In a possible implementation, an external power supply device is further included. The external power supply device is electrically connected to the transmission circuit. The external power supply device includes a discharge socket, and the discharge socket is integrated on the surface of the housing.

[0025] In a possible implementation, a variable resistor is further included. The variable resistor is disposed on the transmission circuit. The charging and discharging gun head is connected to the plug and / or the external power supply device through the variable resistor, and the variable resistor is used to adjust the output power of the charging and discharging device in the charging state or the uncharged state.

[0026] In a possible implementation, the variable resistor includes an adjustment knob, a first variable resistor, a second variable resistor, and a resistor selection switch. The adjustment knob is sequentially connected to the first variable resistor and the second variable resistor through a rotating shaft. The first variable resistor is connected in parallel with the resistor selection switch and then connected in series with the second variable resistor.

[0027] In a possible implementation, the first variable resistor includes a plurality of first sub-resistors and a first sliding piece. The resistance values of the plurality of first sub-resistors are different from each other. A first end of the first sliding piece is rotatably sleeved on the rotating shaft, and a second end of the first sliding piece is used for abutting against any one of the first sub-resistors.

[0028] The second variable resistor includes a plurality of second sub-resistors and a second sliding piece. The resistance values of the plurality of second sub-resistors are different from each other. A first end of the second sliding piece is rotatably sleeved on the rotating shaft, and a second end of the second sliding piece is used for abutting against any one of the second sub-resistors.

[0029] On the other hand, the present application provides a vehicle, including a vehicle body and the charging and discharging device as described in any one of the above. A connector is provided on the vehicle body, and the connector is used for connecting to the charging and discharging device.

[0030] The present application provides a charging and discharging device and a vehicle. The charging and discharging device includes a charging and discharging gun, a plug, a transmission circuit, a housing, and a wire harness storage device. The charging and discharging gun is used to connect to a connector on the vehicle; the plug is used to connect to an external power source; both ends of the transmission circuit are respectively connected to the charging and discharging gun and the plug; a cavity is formed inside the housing, and an opening is formed on the surface of the housing, and the opening is in communication with the cavity; the wire harness storage device is arranged inside the cavity and is connected to the plug; the charging and discharging device has opposite charging states and non-charging states. In the charging state, the plug passes through the opening and is located outside the housing; in the non-charging state, the wire harness storage device stores the plug inside the cavity. By providing the housing in the present application, a cavity is provided inside the housing, and a wire harness storage device is provided inside the cavity; in the charging state, the plug can pass through the opening and be located outside the housing, so as to charge the vehicle; in the non-charging state, the wire harness storage device can store the plug inside the cavity, thereby avoiding the plug from being exposed in the non-charging state, which is beneficial to reducing potential safety hazards and improving the safety of use. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 Structural schematic diagram of the charging and discharging device provided by an embodiment of the present application;

[0033] Figure 2 Circuit schematic diagram when the charging and discharging device provided by an embodiment of the present application is connected to a vehicle;

[0034] Figure 3 For Figure 1 Partial exploded view;

[0035] Figure 4 Partial structural schematic diagram of the charging and discharging device provided by an embodiment of the present application in the non-charging state;

[0036] Figure 5 Partial structural schematic diagram of the charging and discharging device provided by an embodiment of the present application in the charging state;

[0037] Figure 6 Partial structural schematic diagram of the charging and discharging device provided by an embodiment of the present application when converting from the charging state to the non-charging state;

[0038] Figure 7 Structural schematic diagram of the variable resistor provided by an embodiment of the present application;

[0039] Figure 8 Structural schematic diagram of the first variable resistor provided by an embodiment of the present application;

[0040] Figure 9 Appearance diagram of the adjustment knob provided by an embodiment of the present application.

[0041] Reference numerals:

[0042] 10 - Transmission circuit; 20 - Connector;

[0043] 100 - Charging and discharging gun;

[0044] 200 - Plug; 210 - Charging wire harness;

[0045] 300 - External power supply device; 310 - Discharge socket; 320 - Power indicator light; 330 - Button switch; 340 - Status indicator light;

[0046] 400 - Housing; 401 - Body; 402 - End cover; 410 - Winding shaft; 420 - Wedge shaft;

[0047] 500 - Wire harness storage device; 510 - Winding disc; 520 - First elastic reset member; 530 - First locking member; 531 - Clamping portion; 532 - Unlocking portion; 533 - Ratchet teeth; 540 - Second locking member; 550 - Second elastic reset member;

[0048] 600 - Variable resistor; 610 - Adjustment knob; 620 - First variable resistor; 621 - First sub - resistor; 622 - First sliding piece; 623 - First terminal; 624 - Second terminal; 630 - Second variable resistor; 631 - Third terminal; 632 - Fourth terminal; 640 - Resistance selection switch; 650 - Rotating shaft. Detailed implementation manners

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application.

[0050] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0051] As described in the background art, in the solution of the related art, a charging and discharging device that integrates a charging device and a discharging device is provided. A relay is generally provided on the transmission circuit of the device. The relay is used to disconnect the plug from the transmission circuit in the discharging state, so that the plug is not charged. However, in the related art, the plug of the charging and discharging device is exposed outside for a long time. If the charging and discharging device is used in an overload state for a long time or other abnormal failures occur, the relay may fail; at this time, in the discharging state, the plug may be charged, thus causing a safety hazard.

[0052] In view of this, the embodiments of the present application aim to provide a charging and discharging device and a vehicle. By providing a housing with a cavity formed therein and a wire harness storage device disposed in the cavity; in the charging state, the plug can pass through the opening and be outside the housing to charge the vehicle; in the non-charging state, the wire harness storage device can store the plug in the cavity, thus avoiding the plug from being exposed in the non-charging state, which is beneficial to reducing the safety hazard and improving the safety of use.

[0053] The content of the embodiments of the present application will be described in detail below with reference to the drawings, so that those skilled in the art can understand the content of the present application in more detail.

[0054] Please refer to Figures 1-9 , this embodiment provides a charging and discharging device, including:

[0055] A charging and discharging gun 100, which is used to connect to a connector 20 on a vehicle to connect the charging and discharging device to the circuit on the vehicle, so as to realize charging or discharging of the vehicle.

[0056] A plug 200, which is used to connect to an external power supply, and the external power supply can be a device such as a charging pile.

[0057] A transmission circuit 10, with both ends of the transmission circuit 10 connected to the charging and discharging gun 100 and the plug 200 respectively, so that current can flow between the charging and discharging gun 100 and the plug 200.

[0058] An external power supply device 300, which is electrically connected to the transmission circuit 10 to provide the electric energy stored in the vehicle to an external load device through the external power supply device 300 when the vehicle discharges.

[0059] A housing 400, with part of the transmission circuit 10 passing through the housing 400. A cavity is formed inside the housing 400, and an opening is formed on the surface of the housing 400, and the opening is communicated with the cavity.

[0060] The wire harness storage device 500 is arranged in the cavity. The wire harness storage device 500 is connected to the plug 200 and is used to store the plug 200 in the cavity when the plug 200 is not in use.

[0061] The charging and discharging device of this embodiment has a relative charging state and a non-charging state. Among them, the non-charging state includes a discharging state. In the charging state, the plug 200 passes through the opening and is outside the housing 400 (as Figure 5 shown). At this time, the plug 200 can be inserted into an external power source to charge the vehicle. In the non-charging state, the wire harness storage device 500 stores the plug 200 in the cavity (as Figure 1 and Figure 4 shown).

[0062] Please continue to refer to Figure 2 . Specifically, when the charging and discharging device is in normal use, it is first necessary to connect the charging and discharging gun 100 to the connector 20 on the vehicle, so that the transmission circuit 10 (including the live wire L, the neutral wire N, and the grounding wire PE) is connected to the vehicle internal circuit.

[0063] When the charging and discharging device is in the charging state, the charging control switches (including C1 and C2) on the transmission circuit 10 are closed, so that the transmission circuit 10 between the plug 200 and the charging and discharging gun 100 is conducted. The plug 200 is inserted into an external power source, and the current is conducted from the plug 200 through the transmission circuit 10, the charging and discharging gun 100, and then to the connector 20 on the vehicle, and then charges the on-vehicle charger in the vehicle through the vehicle internal circuit. It can be understood that since the external power supply device 300 is directly connected to the transmission circuit 10, the external power supply device 300 can also supply power outward using the electric energy of the external power source at this time. The mechanical structure corresponding to the charging and discharging device in the charging state is as Figure 5 shown. The plug 200 is pulled out from the housing 400 under the action of an external force, so that it can be inserted into an external power source.

[0064] When the charging and discharging device is in the discharging state, the charging control switches on the transmission circuit 10 are disconnected. At this time, the transmission circuit 10 between the plug 200 and the charging and discharging gun 100 is not conducted, and the current is conducted from the on-vehicle charger through the vehicle internal circuit, the connector 20 on the vehicle, the charging and discharging gun 100, and the transmission circuit 10 to the external power supply device 300, and supplies power outward through the external power supply device 300. At this time, the plug 200 is not charged. The mechanical structure corresponding to the charging and discharging device in the charging state is as Figure 1 and Figure 4 shown. The plug 200 is stored in the housing 400 under the action of the wire harness storage device 500, so as to avoid being exposed outside.

[0065] The above describes the charging and discharging states of the charging and discharging device of this embodiment during normal use. When the charging and discharging device is used under an overload state for a long time or other abnormal faults occur, the relay (not shown in the figure) on the transmission circuit 10 may fail, resulting in the charging control switch not being disconnected in the discharging state. At this time, the plug 200 will carry current. Since the plug 200 is always received by the wire harness receiving device 500 into the housing 400 in the non-charging state in this embodiment, even if the plug 200 carries current, it will not pose a potential safety hazard to the user, thus facilitating the improvement of the safety of use.

[0066] It can be known from the above description that in this embodiment, by providing the housing 400, a cavity is provided inside the housing 400, and a wire harness receiving device 500 is provided inside the cavity; in the charging state, the plug 200 can pass through the opening and be outside the housing 400, so as to charge the vehicle; in the non-charging state, the wire harness receiving device 500 can receive the plug 200 into the cavity, thus preventing the plug 200 from being exposed in the non-charging state, which is beneficial to reducing potential safety hazards and improving the safety of use.

[0067] Please continue to refer to Figures 3-6 , the wire harness receiving device 500 of this embodiment includes a winding disc 510, a locking member, and a first elastic reset member 520. The housing 400 includes a main body 401 and an end cover 402. A groove is provided on the main body 401, and the end cover 402 can be covered on the groove through a fastener to form a cavity. A winding shaft 410 is provided inside the cavity, and the winding disc 510 is rotatably arranged on the winding shaft 410. A charging wire harness 210 is wound around the winding disc 510. The first end of the charging wire harness 210 is electrically connected to the plug 200, and the second end of the charging wire harness 210 is electrically connected to the transmission circuit 10. The plug 200 can be electrically connected to the transmission circuit 10 through the charging wire harness 210. The locking member is connected to the winding disc 510, and the locking member is used to lock or release the winding disc 510. The first elastic reset member 520 is sleeved on the winding shaft 410. The first end of the first elastic reset member 520 is fixedly connected to the winding disc 510, and the second end of the first elastic reset member 520 is fixedly connected to the housing 400; the first elastic reset member 520 can be a torsion spring. When the winding disc 510 rotates, the first elastic reset member 520 can be compressed, so that the first elastic reset member 520 stores a certain amount of elastic potential energy.

[0068] In the charging state of this embodiment, the locking member locks the winding disc 510, and the winding disc 510 is relatively fixed to the winding shaft 410, so that the plug 200 is maintained in the current position, and thus charging can be carried out. In the non-charging state, the locking member releases the winding disc 510, and the elastic restoring force of the first elastic reset member 520 drives the winding disc 510 to rotate around the winding shaft 410 to receive the plug 200 into the cavity and prevent the plug 200 from being exposed.

[0069] Further, the locking member of this embodiment includes a first locking member 530 and a second locking member 540. The first locking member 530 is fixedly connected to the winding disc 510. Exemplarily, the first locking member 530 can be disposed on the first side in the axial direction of the winding disc 510. An installation protrusion can be provided on the second side in the axial direction of the winding disc 510, and the first end of the first elastic reset member 520 can be fixedly connected to the installation protrusion. The first locking member 530 includes a plurality of clamping portions 531 and a plurality of unlocking portions 532. The second locking member 540 can cooperate with the clamping portions 531 or the unlocking portions 532 to lock or unlock the winding disc 510.

[0070] In the charging state of this embodiment, the second locking member 540 is located within the clamping portion 531, and the first locking member 530 is clamped with the second locking member 540 so that the winding disc 510 is relatively fixed to the winding shaft 410, and the plug 200 is maintained in the current position, thereby enabling charging.

[0071] In the non-charging state, the second locking member 540 is located within the unlocking portion 532, the first locking member 530 and the second locking member 540 are separated from each other, and the first elastic reset member 520 drives the winding disc 510 to rotate around the winding shaft 410 to receive the plug 200 in the cavity, avoiding the exposure of the plug 200.

[0072] Please continue to refer to Figures 4-6 In a possible implementation manner, the first locking member 530 of this embodiment includes a ratchet. A plurality of ratchet tooth groups and a plurality of tooth grooves are provided on the outer peripheral side of the ratchet. The tooth grooves are located between two adjacent ratchet tooth groups. The above tooth grooves form the unlocking portions 532. Each ratchet tooth group includes a plurality of ratchet teeth 533, and two adjacent ratchet teeth 533 form the clamping portions 531. In this embodiment, the size of the tooth grooves can be set as required. For example, the tooth grooves can be formed by removing some ratchet teeth.

[0073] The second locking member 540 includes a wedge block. A wedge block shaft 420 is further provided in the cavity. The wedge block is rotatably sleeved on the wedge block shaft 420.

[0074] In the charging state of this embodiment, the wedge block is located between two adjacent ratchet teeth 533, so that the first locking member 530 is clamped with the second locking member 540, the winding disc 510 is relatively fixed to the winding shaft 410, and the plug 200 is maintained in the current position, thereby enabling charging.

[0075] In the non-charging state, the wedge block is located within the tooth groove, the first locking member 530 and the second locking member 540 are separated from each other, and the first elastic reset member 520 drives the winding disc 510 to rotate around the winding shaft 410 to receive the plug 200 in the cavity, avoiding the exposure of the plug 200.

[0076] The wire harness storage device 500 of this embodiment further includes a second elastic reset member 550. The second elastic reset member 550 is sleeved on the wedge shaft 420. The first end of the second elastic reset member 550 is fixedly connected to the wedge, and the second end of the second elastic reset member 550 is fixedly connected to the housing 400. Exemplarily, the second elastic reset member 550 of this embodiment can be a torsion spring. When the wedge rotates, the second elastic reset member 550 can be compressed, so that the second elastic reset member 550 stores a certain amount of elastic potential energy.

[0077] In the uncharged state, the second elastic reset member 550 can drive the wedge to rotate so that the wedge is located in the tooth groove.

[0078] The state of the plug 200 of the present application will be described in detail below with reference to the accompanying drawings.

[0079] As Figure 4 shown, in the uncharged state, the wedge is in the initial position, the wedge is vertically downward in a tooth groove, and there is no interaction between the wedge and the ratchet. At this time, both the first elastic reset member 520 and the second elastic reset member 550 are in a relaxed and released state; the charging wire harness 210 is wound around the winding disc 510, and the plug 200 is located inside the housing 400.

[0080] As Figure 5 shown, in the charging state, the user pulls the plug 200, and the charging wire harness 210 drives the winding disc 510 to rotate clockwise around the winding shaft 410. Since the ratchet is fixedly connected to the winding disc 510, the ratchet also rotates with the winding disc 510. The ratchet teeth 533 act on the left side surface of the wedge, pushing the wedge to swing to the right, so that the second elastic reset member 550 stores a certain amount of elastic potential energy. When the winding disc 510 rotates, it will also compress the first elastic reset member 520, so that the first elastic reset member 520 also stores a certain amount of elastic potential energy. When the plug 200 is pulled out to a preset length and the wedge is not in the tooth groove, after the plug 200 is released, the elastic restoring force of the first elastic reset member 520 drives the ratchet to rotate counterclockwise. The ratchet teeth 533 push the right side surface of the wedge, so that the wedge enters the clamping portion 531 between two adjacent ratchet teeth 533, so that the ratchet and the wedge are clamped, and the winding disc 510 and the winding shaft 410 are relatively fixed, and the plug 200 is maintained at the current position, so that charging can be performed.

[0081] As Figure 6As shown, after charging is completed, the user can pull the plug 200 again. The charging wire harness 210 drives the wire winding disc 510 to rotate clockwise, and then drives the ratchet to rotate clockwise. When the ratchet rotates, it can drive the wedge block to continue swinging. When the wedge block falls into a certain tooth groove, the second elastic reset member 550 will drive the wedge block back to the initial position. At this time, when the plug 200 is released, the elastic restoring force of the first elastic reset member 520 drives the ratchet to rotate counterclockwise. The thrust of the ratchet tooth 533 acts on the right side surface of the wedge block, and the wedge block will not be locked with the clamping portion. The charging wire harness 210 is continuously wound around the wire winding disc 510, thereby pulling the plug 200 towards the housing 400 side. When the elastic potential energy of the first elastic reset member 520 is released, the wedge block and the ratchet return to Figure 4 the state shown, the charging wire harness 210 is wound around the wire winding disc 510, and the plug 200 is located inside the housing 400.

[0082] Please continue to refer to Figure 1 , in this embodiment, the external power supply device 300 includes a discharge socket 310, and the discharge socket 310 is integrated on the surface of the housing 400 for the convenience of users. Exemplarily, the external power supply device 300 of this embodiment may further include a power indicator 320, a button switch 330, and a status indicator 340. The power indicator 320, the button switch 330, and the status indicator 340 can all be integrated on the discharge socket 310. The power indicator 320 cooperates with the button switch 330 to display the status of the discharge socket 310. For example, when the button switch 330 is pressed, the power indicator 320 is lit, and at this time, the discharge socket 310 can supply power externally. The status indicator 340 can display the charging progress. For example, multiple status indicators 340 can be set. When the vehicle is fully charged, all the indicators turn green to indicate that the charging is completed.

[0083] Please continue to refer to Figure 2 、 Figure 3 、 Figure 7 、 Figure 8 and Figure 9 , this embodiment further includes a variable resistor 600. The variable resistor 600 is arranged on the transmission circuit 10. The head of the charging and discharging gun 100 is connected to the plug 200 and / or the external power supply device 300 through the variable resistor 600. The variable resistor 600 is used to adjust the output power of the charging and discharging device in the charging state or the discharging state.

[0084] In this embodiment, by setting the variable resistor 600, the output power of the charging and discharging device in the charging state or the discharging state can be adjusted, so as to facilitate reducing the cost of designing and developing the on-vehicle charger.

[0085] In a possible implementation, the variable resistor 600 of this embodiment includes an adjustment knob 610, a first variable resistor 620, a second variable resistor 630, and a resistor selection switch 640. The adjustment knob 610 is sequentially connected to the first variable resistor 620 and the second variable resistor 630 through a rotating shaft 650. The first variable resistor 620 is connected in parallel with the resistor selection switch 640 and then connected in series with the second variable resistor 630.

[0086] Specifically, as Figure 2 shown, after the charging and discharging gun 100 is connected to the connector 20 on the vehicle, the first variable resistor 620 (R4 in the figure) is connected in parallel with the resistor selection switch 640 and connected to the ground wire PE, and the other end is connected in series with the second variable resistor 630 (RC in the figure) and then connected to the vehicle controller through the CC contact point.

[0087] When the resistor selection switch 640 is closed, the resistance value of the variable resistor 600 is equal to the resistance value of the second variable resistor 630. At this time, the charging and discharging device is in the charging state or the discharging state, and the charging and discharging gun 100 cannot be removed from the vehicle.

[0088] When the resistor selection switch 640 is closed, the resistance value of the variable resistor 600 is equal to the sum of the resistance values of the first variable resistor 620 and the second variable resistor 630. At this time, the charging and discharging device is in the semi-connected state, and the charging and discharging gun 100 can be removed from the vehicle.

[0089] In this embodiment, the change in the resistance values of the first variable resistor 620 and the second variable resistor 630 is achieved through the following structure:

[0090] Please continue to refer to Figure 8 , the first variable resistor 620 of this embodiment includes a plurality of first sub-resistors 621 and a first sliding piece 622. The resistance values of the plurality of first sub-resistors 621 are different from each other, and the plurality of first sub-resistors 621 are connected in parallel to the first terminal 623. The first end of the first sliding piece 622 is rotatably sleeved on the rotating shaft 650, and the rotating shaft 650 is connected to the second terminal 624. The second end of the first sliding piece 622 is used to abut against any one of the first sub-resistors 621. Combining Figure 7 it can be seen that when the adjustment knob 610 is rotated, the rotating shaft 650 drives the first sliding piece 622 to rotate, so that the first sliding piece 622 contacts a certain first sub-resistor 621. At this time, the resistance value of the first variable resistor 620 is the resistance value of this first sub-resistor 621. Continuing to rotate the adjustment knob 610 can make the first sliding piece 622 contact another first sub-resistor 621, thereby changing the resistance value of the first variable resistor 620.

[0091] Similarly, the second variable resistor 630 includes a plurality of second sub - resistors and a second sliding piece. The resistance values of the plurality of second sub - resistors are different from each other, and the plurality of second sub - resistors are connected in parallel to the third terminal 631. The first end of the second sliding piece is rotatably sleeved on the rotating shaft 650, and the rotating shaft 650 is connected to the fourth terminal 632. The second end of the second sliding piece is used to abut against any one of the second sub - resistors. Combining Figure 7 it can be known that when the adjusting knob 610 is rotated, the rotating shaft 650 drives the second sliding piece to rotate, so that the second sliding piece contacts a certain second sub - resistor. At this time, the resistance value of the second variable resistor 630 is the resistance value of this second sub - resistor. Continuing to rotate the adjusting knob 610 can make the second sliding piece contact another second sub - resistor, thereby changing the resistance value of the second variable resistor 630.

[0092] Table 1 Resistance values of the variable resistor under different working states of the charging and discharging device

[0093]

[0094] Figure 9 shows the external view of the adjusting knob 610 provided in an embodiment of the present application. As Figure 9 shown, the adjusting knob 610 of this embodiment is provided with an indicating arrow and the rated current values corresponding to the charging state and the discharging state respectively. Combining Table 1, it can be known that by rotating the adjusting knob 610, the charging and discharging device can operate in the charging state or the discharging state, and the corresponding rated current values (including 10A, 16A, 32A and 63A) can be selected, so as to select different charging powers or discharging powers.

[0095] This embodiment also provides a vehicle, including a vehicle body and the above - mentioned charging and discharging device. A connector 20 is provided on the vehicle body, and the connector 20 is used to connect to the charging and discharging device.

[0096] It can be understood that since the vehicle of this embodiment adopts the above - mentioned charging and discharging device, the plug is always received in the housing by the wire harness receiving device in the uncharged state. Even if the plug carries current, it will not pose a potential safety hazard to the user, thus being beneficial to improving the safety of use.

[0097] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0098] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0099] It should be noted that in the description of the present application, the terms "first" and "second" are only used for the convenience of describing different components, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0100] The embodiments or implementation manners in the present application are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0101] In the description of the present application, the descriptions with reference to the terms "one implementation manner", "some implementation manners", "illustrative implementation manners", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the implementation manner or example are included in at least one implementation manner or example of the present application. In the present application, the schematic expressions of the above terms do not necessarily refer to the same implementation manner or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more implementation manners or examples.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A charge and discharge device, characterized in that, Comprising: A charging and discharging gun for connecting to a connector on a vehicle; A plug for connecting to an external power supply; A transmission circuit, with both ends of the transmission circuit connected to the charging and discharging gun and the plug respectively; A housing, a part of the transmission circuit passing through the housing, a cavity being formed inside the housing, an opening being formed on the surface of the housing, and the opening communicating with the cavity; A wire harness storage device, the wire harness storage device being arranged inside the cavity and connected to the plug; The charging and discharging device has opposite charging states and a non-charging state. In the charging state, the plug passes through the opening and is located outside the housing; In the non-charging state, the wire harness storage device stores the plug inside the cavity.

2. The charge and discharge device according to claim 1, characterized in that, The wire harness storage device includes a winding disc, a locking member, and a first elastic reset member; a winding shaft is provided inside the cavity, the winding disc is rotatably arranged on the winding shaft, a charging wire harness is wound around the winding disc, a first end of the charging wire harness is electrically connected to the plug, and a second end of the charging wire harness is electrically connected to the transmission circuit; the locking member is connected to the winding disc, and the locking member is used to lock or release the winding disc; the first elastic reset member is sleeved on the winding shaft, a first end of the first elastic reset member is fixedly connected to the winding disc, and a second end of the first elastic reset member is fixedly connected to the housing; In the charging state, the locking member locks the winding disc, and the winding disc is relatively fixed to the winding shaft so as to maintain the plug in the current position; In the non-charging state, the locking member releases the winding disc, and the first elastic reset member drives the winding disc to rotate around the winding shaft to store the plug inside the cavity.

3. The charge and discharge device according to claim 2, wherein The locking member includes a first locking member and a second locking member, the first locking member is fixedly connected to the winding disc, and the first locking member includes a plurality of clamping portions and a plurality of unlocking portions; In the charging state, the second locking member is located inside the clamping portion, and the first locking member is clamped with the second locking member so that the winding disc is relatively fixed to the winding shaft; In the non-charging state, the second locking member is located inside the unlocking portion, the first locking member is separated from the second locking member, and the first elastic reset member drives the winding disc to rotate around the winding shaft to store the plug inside the cavity.

4. The charge and discharge device according to claim 3, characterized in that, The first locking member includes a ratchet wheel, a plurality of ratchet tooth groups and a plurality of tooth grooves are provided on the outer peripheral side of the ratchet wheel, the tooth grooves are located between two adjacent ratchet tooth groups, the tooth grooves form the unlocking portions, and each ratchet tooth group includes a plurality of ratchet teeth, and two adjacent ratchet teeth form the clamping portions; The second locking member includes a wedge block, a wedge block shaft is provided inside the cavity, and the wedge block is rotatably sleeved on the wedge block shaft; In the charging state, the wedge block is located between two adjacent ratchet teeth, and the first locking member is clamped with the second locking member so that the winding disc is relatively fixed to the winding shaft; In the uncharged state, the wedge block is located in the tooth groove, the first locking member and the second locking member are separated from each other, and the first elastic reset member drives the winding disc to rotate around the winding shaft to receive the plug in the cavity.

5. The charging and discharging device according to claim 4, characterized in that, The wire harness storage device further includes a second elastic reset member, the second elastic reset member is sleeved on the wedge block shaft, a first end of the second elastic reset member is fixedly connected to the wedge block, and a second end of the second elastic reset member is fixedly connected to the housing; In the uncharged state, the second elastic reset member drives the wedge block to rotate so that the wedge block is located in the tooth groove.

6. The charge and discharge device according to claim 1, characterized in that, It further includes an external power supply device, the external power supply device is electrically connected to the transmission circuit; the external power supply device includes a discharge socket, and the discharge socket is integrated on the surface of the housing.

7. The charging and discharging device according to claim 6, characterized in that, It further includes a variable resistor, the variable resistor is arranged on the transmission circuit, the charging and discharging gun head is connected to the plug and / or the external power supply device through the variable resistor, and the variable resistor is used to adjust the output power of the charging and discharging device in the charging state or the uncharged state.

8. The charge and discharge device according to claim 7, characterized in that The variable resistor includes an adjustment knob, a first variable resistor, a second variable resistor and a resistance selection switch. The adjustment knob is sequentially connected to the first variable resistor and the second variable resistor through a rotating shaft. The first variable resistor is connected in parallel with the resistance selection switch and then connected in series with the second variable resistor.

9. The charge and discharge device according to claim 8, characterized in that, The first variable resistor includes a plurality of first sub-resistors and a first sliding piece. The resistance values of the plurality of first sub-resistors are different from each other. A first end of the first sliding piece is rotatably sleeved on the rotating shaft, and a second end of the first sliding piece is used to abut against any one of the first sub-resistors; The second variable resistor includes a plurality of second sub-resistors and a second sliding piece. The resistance values of the plurality of second sub-resistors are different from each other. A first end of the second sliding piece is rotatably sleeved on the rotating shaft, and a second end of the second sliding piece is used to abut against any one of the second sub-resistors.

10. A vehicle, characterized in that, It includes a vehicle body and a charging and discharging device according to any one of claims 1-9. A connector is provided on the vehicle body, and the connector is used to connect to the charging and discharging device.

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