CN218400188U - Power supply unit and electric automobile - Google Patents

Abstract

The utility model provides a power supply unit and electric automobile, power supply unit includes: the battery compartment is provided with a battery cavity with an opening, the bottom of the battery compartment, which is opposite to the opening, is provided with an installation part, and the installation part is provided with a first connector; the battery pack is detachably arranged in the battery cavity, and a first end, facing the mounting piece, of the battery pack is provided with a second connector suitable for being electrically connected with the first connector; at least one locking assembly comprising: the fixing mechanism is arranged on one of the battery bin and the battery pack; and a locking mechanism mounted on the other of the battery compartment and the battery pack and adapted to be detachably assembled with the fixing mechanism to restrain the battery pack within the battery cavity in the first direction so as to maintain the second connector in a state of being engaged with the first connector. The electric automobile comprises an automobile body and at least two power supply devices, wherein a first connector of each power supply device is electrically connected with the automobile body so as to supply power to electric equipment of the automobile body.

Description

Power supply unit and electric automobile

Technical Field

The utility model relates to a battery replacement equipment for electric automobile especially relates to a power supply unit and electric automobile.

Background

Electric vehicles typically include both replaceable and non-replaceable batteries. After the battery pack of the electric automobile with the replaceable battery is in a low-voltage state, the electric automobile can continue to run by replacing the battery, and compared with the electric automobile with the non-replaceable battery, the electric automobile has the advantage in the aspect of endurance.

At present, when the battery of the electric automobile is replaced, the battery pack needs to be detached and installed by means of special tools and/or equipment, and even the battery pack needs to be replaced by a special battery replacement station. Therefore, the battery replacement place and the battery replacement time are both greatly limited, and the continuous driving of the electric automobile is influenced.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned among the prior art and at least one technical problem of other aspects, the utility model provides a power supply unit and electric automobile, through the assembly that fixed establishment in the locking subassembly and locking mechanism can break away from, install battery package detachably in the battery compartment and make first joint and second structure keep at the joint state to supply power to the car body, in order to promote the convenience of battery package change process.

In order to achieve the above object, an aspect of the present invention provides a power supply device, including: the battery compartment is provided with a battery cavity with an opening, the bottom of the battery compartment, which is opposite to the opening, is provided with a mounting piece, and the mounting piece is provided with a first connector; the battery pack is detachably arranged in the battery cavity, and a first end, facing the mounting piece, of the battery pack is provided with a second connector suitable for being electrically connected with the first connector; at least one locking assembly comprising: the fixing mechanism is arranged on one of the battery bin and the battery pack; and a locking mechanism mounted on the other of the battery compartment and the battery pack and adapted to be detachably assembled with the fixing mechanism to restrain the battery pack within the battery cavity such that the second connector is maintained in an electrically connected state with the first connector.

According to the embodiment of the utility model, the fixing mechanism is installed at the opening position of the battery compartment and comprises a hook part; a locking mechanism comprising: a pivot piece, a first end of which is pivotally mounted on the outer side of a second end of the battery pack opposite to the first end of the battery pack; the first end of the locking ring is pivotally arranged between the first end and the second end of the pivot piece, and under the condition that the second end of the pivot piece is positioned at the first position close to the battery pack, the locking ring and the second end, facing back, of the pivot piece are sleeved on the hook part and are in a tensioned state, so that the battery pack is limited in the battery bin; when the second end of the pivot piece is located at the second position state far away from the battery pack, the second end of the locking ring is separated from the hook part and is in a releasing state, so that the battery pack is allowed to extend out of the battery bin.

According to the utility model discloses an embodiment, locking mechanism still includes the mount pad, the mount pad install in the outside of battery package's second end, the first end pivot of pivot dress spare install in on the mount pad.

According to the utility model discloses an embodiment, the lock ring includes: a connecting pin passing through the pivot member in a vertical direction; the first ends of the two connecting pieces are respectively and rotatably connected to the two ends of the connecting pin; and a hanging part to which second ends of the two connecting pieces are connected, the hanging part being detachably hung to the hook part.

According to the utility model discloses an embodiment still includes at least one locating component, include: a guide post provided on one of the mounting member and the first end of the battery pack and protruding from a surface of the first end of the mounting member or the battery pack; and a guide hole provided in the other of the mount and the first end of the battery pack, and adapted to be fitted to the guide post to guide the second tab to be engaged with the first tab.

According to the utility model discloses an embodiment, including two locating component, two locating component the guide post install in the both sides that the second connects, two locating component the bullport set up in on the installed part.

According to the utility model discloses an embodiment, still including install in the sliding component of battery intracavity, be used for with battery package sliding fit, so that the battery package is followed first direction slidable ground gets into and breaks away from the battery chamber.

According to the utility model discloses an embodiment, the sliding component along with the direction that first direction parallels install in on the bottom surface of battery chamber, and by the bottom surface protrusion in battery chamber.

According to an embodiment of the invention, the sliding assembly comprises a slide bar.

According to another aspect of the utility model, an electric automobile is provided, include: an automobile body; and the first joints of the power supply devices are electrically connected with the automobile body so as to supply power to the electric equipment of the automobile body.

According to the utility model discloses an embodiment, it is a plurality of power supply unit does in turn car body's at least some consumer supplies power.

According to the utility model discloses an embodiment, it is a plurality of power supply unit install side by side in on the frame of automobile body.

According to the utility model discloses an embodiment, power supply unit install in the middle part of frame.

According to the utility model discloses an embodiment, power supply unit's battery compartment sets up along the horizontal direction.

According to the utility model discloses an embodiment, power supply unit's battery chamber along with the wheel base direction looks quadrature's of car body first direction extends.

According to the utility model discloses an embodiment still includes: the door is arranged on the automobile body in an openable and closable manner; and the lock is arranged on the box door and is suitable for locking the power supply device in the automobile body.

According to the utility model discloses a power supply unit, through the assembly that fixed establishment in the locking subassembly and locking mechanism can break away from, install battery package detachably in the battery compartment and make first joint and second structure keep at the joint state to supply power to the automobile body, in order to promote the convenience of battery package change process.

According to the utility model discloses a another aspect, electric automobile includes two at least power supply unit, and a battery package among a plurality of power supply unit is the automobile body power supply as main power supply, and other battery packages can regard as stand-by power supply or auxiliary power source, treat for the battery package as the main power supply be in after the low pressure state, access electric automobile's power consumption circuit to promote electric automobile's continuation of the journey mileage and satisfy electric automobile's continuation of the journey demand.

Drawings

Fig. 1 is a perspective view schematically showing a power supply device according to an embodiment of the present invention, in which a lock member lock ring is not shown;

fig. 2 is a perspective view of the open-faced view of the battery compartment portion of the embodiment of the invention shown in fig. 1;

fig. 3 is a perspective view of the battery compartment portion of the embodiment of the invention shown in fig. 2 from a perspective facing the mounting member, with the lock member locking ring not shown;

fig. 4 is a perspective view schematically illustrating a viewing angle of a battery pack portion facing a first end according to an embodiment of the present invention;

fig. 5 is a perspective view schematically illustrating a viewing angle of a battery pack portion facing a second end according to an embodiment of the present invention;

fig. 6 schematically illustrates a front view of a locking assembly portion of a power supply apparatus according to an embodiment of the present invention;

fig. 7 is a schematic view of the fixing mechanism and the locking mechanism shown in fig. 6 according to the embodiment of the present invention in a locked state;

fig. 8 is a schematic view of the fixing mechanism and the locking mechanism shown in fig. 6 according to the embodiment of the present invention in an open state;

fig. 9 schematically illustrates a perspective view of a lock member of a power supply device according to an embodiment of the present invention;

fig. 10 schematically shows a schematic perspective view of a fixing of a power supply device according to an embodiment of the invention;

fig. 11 is a perspective view schematically showing an electric vehicle according to an embodiment of the present invention; and

fig. 12 is a use state diagram of the electric vehicle shown in fig. 11, in which the door of the electric vehicle according to the embodiment of the present invention is in a locked state.

In the above figures, the reference numerals have the following meanings:

1. a power supply device;

11. a battery pack;

111. a second joint;

12. a locking assembly;

121. a locking mechanism;

1211. a mounting base;

1212. a pivot mounting member;

1213. a lock ring;

12131. a connecting pin;

12132. a connecting member;

12133. a hanging part;

122. a fixing mechanism;

1221. a hook portion;

13. a battery compartment;

131. a stringer;

132. a cross beam;

133. a mounting member;

134. a first joint;

14. a sliding assembly;

15. a positioning assembly;

151. a guide hole;

152. a guide post;

16. a handle;

2. an automobile body;

21. a box door;

22. a lock;

23. a frame; and

24. a vehicle shell.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components. All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.

Where a convention analogous to "at least one of A, B, and C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B, and C" would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). Where a convention analogous to "at least one of A, B, or C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B, or C" would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.).

Fig. 1 is a front view schematically showing a power supply device according to an embodiment of the present invention, in which a lock member lock ring is not shown. Fig. 2 is a perspective view of the battery compartment portion of fig. 1, shown in an embodiment of the present invention, facing the open viewing angle. Fig. 3 is a perspective view of the battery compartment portion of fig. 2 from the perspective of the mounting member, without the locking member locking ring shown. Fig. 4 is a perspective view schematically illustrating a viewing angle of a battery pack portion facing a first end according to an embodiment of the present invention. Fig. 5 is a perspective view schematically illustrating a viewing angle of a battery pack portion facing a second end according to an embodiment of the present invention.

An aspect of the present invention provides a power supply device, as shown in fig. 1 to 5, including a battery compartment 13, a battery pack 11 and at least one locking assembly 12. The battery compartment 13 is provided with a battery cavity having an opening, a mounting member 133 is provided at a bottom of the battery compartment 13 opposite to the opening, and a first connector 134 is provided on the mounting member 133. The battery pack 11 is detachably mounted in the battery chamber, and a first end of the battery pack 11 facing the mounting member is mounted with a second connector 111 adapted to be electrically connected with the first connector 134. The locking assembly 12 includes a fixing mechanism 122 and a locking mechanism 121. The fixing mechanism 122 is mounted on one of the battery compartment 13 and the battery pack 11, and the locking mechanism 121 is mounted on the other of the battery compartment 13 and the battery pack 11 and adapted to be detachably assembled with the fixing mechanism 122 to restrict the battery pack 11 in the first direction within the battery cavity so as to maintain the second tab 111 in a state of being engaged with the first tab 134.

In an exemplary embodiment, as shown in fig. 1-3, the battery compartment 13 includes, but is not limited to, a truss structure.

In detail, the battery compartment 13 includes a plurality of cross members 132 and a plurality of longitudinal members 131 orthogonal to the cross members 132. The plurality of cross members 132 and the plurality of longitudinal members 131 are connected by riveting, welding, integration, and other connecting methods, to form a truss structure.

Further, the central portion of the truss structure includes, but is not limited to, a cell cavity configured in the shape of a cube.

In an exemplary embodiment, the mounting member 133 is disposed in a direction orthogonal to the battery compartment 13 (e.g., vertical), and the mounting member 133 covers at least a portion of the battery cavity in an orthographic projection in a first direction (e.g., a direction facing into and away from the page as shown in fig. 1).

In detail, the mounting member 133 includes, but is not limited to, any one structure configured as a plate-shaped structure, a block-shaped structure, a mesh-shaped structure, and others suitable for blocking the battery pack 11 from being detached from the battery cavity.

In an exemplary embodiment, as shown in fig. 1, 4 and 5, the battery pack 11 includes, but is not limited to, being configured in a cubic structure.

Further, the battery pack 11 is sized to fit within the battery cavity, wherein at least the first end of the battery pack 11 extends into the battery cavity and moves along the battery cavity to a position where the second tab 111 engages the first tab 134.

In an exemplary embodiment, the first connector 134 includes a female plug having terminals disposed therein, and the second connector 111 includes a male plug adapted to engage the female plug.

It should be noted that any plug structure (e.g., an aviation plug) that can be used in the art to electrically connect the electric device to the battery pack 11 can be used as the first connector 134 and the second connector 111, and is not specifically disclosed.

In an exemplary embodiment, the power supply includes two latch assemblies 12.

In detail, the two locking assemblies 12 are symmetrically arranged on both sides of the center line of the power supply device. It should be understood that embodiments of the present disclosure are not limited thereto.

For example, two locking assemblies 12 are arranged on two sides of the center line of the power supply device in a staggered manner.

In another exemplary embodiment, the power supply includes a locking assembly 12.

In detail, the fixing mechanism 122 and the locking mechanism 121 of the locking assembly 12 are both disposed at the neutral position of the power supply device. It should be understood that embodiments of the present disclosure are not limited thereto.

For example, three, four, five, and other numbers of locking assemblies 12 may be included to restrain battery pack 11 in the first direction and relative to battery compartment 13 in the assembled state of at least a portion of securing mechanism 122 and locking mechanism 121.

In such an embodiment, by the detachable assembly of the fixing mechanism 122 and the locking mechanism 121 in the locking assembly 12, the battery pack 11 is detachably mounted in the battery compartment 13, and the first connector 134 and the second structure are maintained in the engaged state, so that a user does not need to use special tools and equipment during the process of replacing the battery pack 11, which is beneficial to improving the convenience of the replacement process of the battery pack 11.

Fig. 6 schematically illustrates a front view of a locking assembly portion of a power supply apparatus according to an embodiment of the invention. Fig. 7 is a schematic view of the state that the fixing mechanism and the locking mechanism of fig. 6 are in the locked state. Fig. 8 is a schematic view of the fixing mechanism and the locking mechanism shown in fig. 6 according to the embodiment of the present invention in an open state. Fig. 9 schematically illustrates a perspective view of a lock member of a power supply device according to an embodiment of the present invention. Fig. 10 schematically shows a perspective view of a fixing member of a power supply device according to an embodiment of the present invention.

According to the embodiment of the present disclosure, as shown in fig. 6 to 10, the fixing mechanism 122 is installed at an opening position of the battery compartment 13, and the fixing mechanism 122 includes a hook portion 1221. The locking mechanism 121 includes a pivot assembly 1212 and a locking ring 1213. The first end of the pivot element 1212 is pivotally mounted to the outside of the second end of the battery pack 11 opposite the first end of the battery pack 11. The first end of the locking ring 1213 is pivotally mounted between the first end and the second end of the pivotal mounting member 1212, and in a state where the second end of the pivotal mounting member 1212 is located at the first position close to the battery pack 11, the second end of the locking ring 1213 facing away from the pivotal mounting member 1212 is fitted over the hook 1221 and is under tension to restrain the battery pack 11 in the battery compartment 13; in the second position in which the second end of the pivot assembly 1212 is positioned away from the battery pack 11, the second end of the latch ring 1213 is disengaged from the hook 1221 and is in a released state to allow the battery pack 11 to extend from the battery compartment 13.

In one exemplary embodiment, as shown in FIG. 6, two locking assemblies 12 are included.

In detail, the locking mechanisms 121 of the two locking assemblies 12 are symmetrically disposed on the second end (the end facing the view shown in fig. 6) of the battery pack 11.

According to the embodiment of the present disclosure, as shown in fig. 6 to 10, the locking mechanism 121 further includes a mounting seat 1211, the mounting seat 1211 is mounted on the outer side of the second end of the battery pack 11, and the first end of the pivot mounting member 1212 is pivotally mounted on the mounting seat 1211.

According to an embodiment of the present disclosure, as shown in fig. 6 to 10, the locking ring 1213 includes a connecting pin 12131, two connecting members 12132 and a hanging portion 12133 passing through the pivot assembly 1212 in a vertical direction. First ends of the two connection members 12132 are rotatably connected to both ends of the connection pin 12131, respectively. The hanging portion 12133, the second ends of the two connecting members 12132 are connected to the hanging portion 12133, and the hanging portion 12133 is detachably hung to the hook portion 1221.

In an exemplary embodiment, as shown in fig. 7-9, the mount 1211 and the pivot assembly 1212 are configured in a bar configuration.

In detail, as shown in fig. 7, the mounting seat 1211 and the end portion (left end as shown in fig. 7) of the pivoting member 1212 extending from the battery pack 11 are pivotally connected, and the right end of the pivoting member 1212 is openable relative to the pivoting member 1212 in a direction away from the mounting seat 1211.

Further, the mount 1211 includes, but is not limited to, being mounted to the battery pack 11 by riveting, welding, bolting, and any other method.

In an exemplary embodiment, as shown in fig. 6, the fixing mechanism 122 is mounted on the inner walls of both sides of the opening of the battery compartment 13.

In an exemplary embodiment, as shown in fig. 6, 7, 8 and 10, the fixing mechanism 122 includes a fixing portion for being mounted to the battery compartment 13 and a hook portion 1221 integrally formed with the fixing portion.

In detail, the fixing portion is configured in a sheet-like structure, and the hooking portion 1221 is configured in an S-like structure.

Further, the opening side of the hook portion 1221 is adapted to be fitted with the hanging portion 12133 of the lock ring 1213.

In such an embodiment, the pivot assembly 1212 is in the second position as shown in FIG. 7, and the locking ring 1213 is in the initial position away from the securing mechanism 22; after the battery pack 11 enters the battery cavity, the locking ring 1213 swings to the first position along with the right end of the pivot assembly 1212 to the left as shown in fig. 7, and swings the hanging portion 12133 around the connecting pin 12131 to a fixed position where it is sleeved in the hook portion 1221 of the fixing mechanism 122; thereafter, as shown in fig. 8, the pivot mounting member 1212 is returned to the second position to maintain the connecting member 12132 in a state in which it coincides with the extending direction of the pivot mounting member 1212, so that the fixing mechanism 122 is assembled with the lock mechanism 121.

According to the embodiment of the present disclosure, as shown in fig. 3 and 5, the power supply device further includes at least one positioning assembly 15, and the positioning assembly 15 includes a guide pillar 152 and a guide hole 151. The guide post 152 is disposed on one of the mounting member 133 and the first end of the battery pack 11 and protrudes from a surface of the mounting member 133 or the first end of the battery pack 11. The guide hole 151 is provided in the other of the mount 133 and the first end of the battery pack 11, and is adapted to be fitted with the guide post 152 to guide the second tab 111 to be engaged with the first tab 134.

According to the embodiment of the present disclosure, as shown in fig. 3 to 5, the power supply device includes two positioning assemblies 15, the guide posts 152 of the two positioning assemblies 15 are mounted on both sides of the second joint 111, and the guide holes 151 of the two positioning assemblies 15 are disposed on the mounting member 133.

In one exemplary embodiment, as shown in fig. 3, the mounting member 133 is disposed within the cell cavity in a vertical direction.

In detail, the mounting member 133 is constructed in a plate-shaped structure, and a first joint 134 is installed at the middle of the mounting member 133.

Further, the guide holes 151 include, but are not limited to, mounting pieces 133 symmetrically disposed at both sides of the first joint 134.

Further, a guide post 152 is mounted on the second end of the battery pack 11 at a position facing the guide hole 151.

In one exemplary embodiment, the guide posts 152 include, but are not limited to, dowel pins.

In detail, it extends in a direction (horizontal direction as shown in fig. 3) orthogonal to the second end.

Further, the guide hole 151 is configured as a through hole structure adapted to pass a positioning pin therethrough. It should be understood that embodiments of the present disclosure are not limited thereto.

For example, the guide posts 152 include, but are not limited to, any one of bolts, bumps, and pins.

For another example, the guiding hole 151 includes, but is not limited to, any one of a through hole, a blind hole, a through groove, and a blind groove.

In such an embodiment, the guiding posts 152 and the guiding holes 151 in the positioning assembly 15 cooperate to assist the user in positioning the second connector 111 relative to the first connector 134 after the battery pack 11 enters the battery cavity, so that the second connector 111 can be accurately engaged with the first connector 134.

According to an embodiment of the present disclosure, as shown in fig. 1 and 3, the power supply device further includes a sliding assembly 14 mounted in the battery cavity for sliding engagement with the battery pack 11 to slidably move the battery pack 11 into and out of the battery cavity in the first direction.

In an exemplary embodiment, the slide assembly 14 is disposed on the bottom surface of the battery cavity.

Further, the bottom surface of the battery pack 11 is slidably mounted on the slide assembly 14.

In another exemplary embodiment, the slide assemblies 14 are disposed on two opposing sidewalls of the battery cavity.

In detail, the battery pack 11 is provided with a fitting portion (including but not limited to a slider) adapted to slidably fit with the slide rail on a side surface facing the slide assembly. The matching part is detachably arranged on the sliding component.

In yet another exemplary embodiment, the slide assembly 14 is disposed on the top surface of the battery cavity.

Further, the battery pack 11 is provided on an upper surface thereof facing the slide module with a hanging portion (including, but not limited to, a hook) adapted to be fitted with the slide module. It should be understood that embodiments of the present disclosure are not limited thereto.

It should be noted that any low friction device or mechanism (e.g., any of a slide, and a chute) that can be used in the art to overcome the friction force required to move the battery pack 11 into and/or out of the battery cavity can be optionally used as the sliding assembly 14, and no specific deployment can be performed.

According to an embodiment of the present disclosure, as shown in fig. 1 and 3, the sliding member 14 is mounted on and protrudes from the bottom surface of the battery cavity in a direction parallel to the first direction.

In accordance with an embodiment of the present disclosure, as shown in fig. 1 and 3, the slide assembly 14 includes a slide bar.

In an exemplary embodiment, as shown in fig. 1 and 3, the slide assembly 14 includes, but is not limited to, two slides.

In detail, two sliders are disposed in parallel at a spacing, and are configured to extend in a first direction.

Further, the surface of the slide bar facing the battery pack 11 is flat and smooth.

Further, the slide bar includes, but is not limited to, nylon, teflon, or other materials.

In such an embodiment, in a state that the battery pack 11 is moved into or out of the battery cavity, the sliding assembly 14 is engaged to reduce the friction force between the battery pack 11 and the battery cavity under the action of its own weight, so that a user can operate the battery pack in the space defined by the battery cavity with a small force.

Fig. 11 is a perspective view schematically showing an electric vehicle according to an embodiment of the present invention.

Another aspect of the utility model provides an electric automobile still provides, as shown in fig. 11, including automobile body 2 and two at least power supply unit 1. The first connector 134 of the power supply device 1 is electrically connected to the automobile body 2.

According to the embodiment of the present disclosure, as shown in fig. 11, the plurality of power supply devices alternately supply power to at least a part of the electric devices of the automobile body 2.

In an exemplary embodiment, two power supply devices are included.

In detail, both the power supply devices are electrically connected to the power utilization circuit of the vehicle body 2, and selectively supply power to the power utilization circuit of the vehicle body 2. It should be understood that embodiments of the present disclosure are not limited thereto.

For example, three, four, five or another number of power supply devices 1 may be included.

In an exemplary embodiment, the powered device includes, but is not limited to, at least one of a power device (e.g., a motor), a positioning device (e.g., a GPS assembly), an audio-visual device (e.g., a display screen, a radio), a temperature-regulating device (e.g., an air conditioner, a heating seat), a driving-assistance device (e.g., a camera, a radar probe), a lighting device (e.g., a low beam, a high beam, a fog light, a brake light), and other auxiliary devices (e.g., a wiper motor, a cleaning fluid spray assembly).

In an exemplary embodiment, one of the two power supply devices 1 serves as a main power supply and the other serves as a backup power supply.

In detail, the main power supply supplies power to all the electric devices in the automobile body 2, and the standby power supply is turned on with the electric circuits of the electric devices and the main power supply is turned off with the electric circuits in a state where the output voltage as the main power supply does not satisfy the operating voltage of the electric devices.

In another exemplary embodiment, one of the two power supplies serves as a primary power supply and the other serves as an auxiliary power supply.

In detail, the main power supply supplies power to a part of the electric devices (such as power devices, audio-visual devices, temperature adjusting devices, auxiliary driving devices, and lighting devices) in the vehicle body 2, and the auxiliary power supply supplies power to another part of the electric devices (such as positioning devices and auxiliary devices).

Furthermore, the power supply of the power equipment by the main power supply and the auxiliary power supply can be switched, when the output voltage of the original main power supply does not meet the working voltage of the original power equipment, the original auxiliary power supply can be switched into the main power supply, and the original main power supply supplies power to the power equipment of the original auxiliary power supply or is switched off from the power circuit.

Furthermore, in addition to switching the power supply of the main power supply and the auxiliary power supply, a part of the power utilization circuits of the electric equipment supplied by the main power supply can be connected to the power supply circuit of the auxiliary power supply.

It should be noted that any circuit that can be used in the art to supply power to the electric equipment and to switch the circuit can be selected as a power supply circuit of the power supply device, an electric circuit of the electric equipment, and a switching circuit suitable for switching different power supply circuits, and detailed descriptions thereof are omitted.

In such an embodiment, the electric vehicle includes at least two power supply devices, one battery pack 11 of the plurality of power supply devices supplies power to the vehicle body 2, and in a state where the other power supply devices are used as a backup power supply, after the battery pack 11 supplying power to the vehicle body 2 is in a low-voltage state, the backup power supply is connected to the power utilization circuit of the electric vehicle to continue supplying power to the electric vehicle, and the battery pack 11 of the originally-supplied battery mechanism is replaced by itself, so that the electric vehicle can continuously run. Under other power supply unit as auxiliary power source's state, treat that battery package 11 for the power supply of some consumer of automobile body 2 is in the low pressure state after, auxiliary power source inserts the power supply circuit of former consumer, and the power supply unit of former power supply can be for satisfying operating voltage's other consumers power supply to optimize electric automobile's power consumption demand, be favorable to promoting electric automobile's continuation of the journey mileage.

According to the embodiment of the present disclosure, as shown in fig. 11, a plurality of power supply devices are mounted side by side on the frame 23 of the automobile body 2.

According to the embodiment of the present disclosure, as shown in fig. 11, the power supply device is mounted at the middle of the frame 23.

According to the embodiment of the present disclosure, as shown in fig. 11, the battery compartment 13 of the power supply device is disposed in the horizontal direction.

According to the embodiment of the present disclosure, as shown in fig. 11, the battery cavity of the power supply device extends in the first direction orthogonal to the wheel base direction of the automobile body 2.

In an exemplary embodiment, the vehicle body 2 includes a frame 23 and a shell 24.

Specifically, the battery compartment 13 of the power supply device is mounted on the frame 23, and the casing 24 is covered on the frame 23 and the outside of the battery compartment 13.

Further, the vehicle body shell 24 is provided with a mounting opening and a viewing opening at positions facing the opening of the battery compartment 13 and the mounting member 133, respectively, so that a user can push the battery pack 11 into the battery chamber along the mounting opening and view the relative positions of the guide posts 152 and the guide holes 151, and the second tabs 111 and the first tabs 134 at the viewing opening.

In an exemplary embodiment, the openings of the battery compartments 13 of the two power supply devices are arranged in the same direction.

In this embodiment, since the two battery packs 11 enter or leave the battery cavities from the same side, it is beneficial for the user to inspect and replace the two battery packs 11.

In another exemplary embodiment, the openings of the battery compartments 13 of the two power supply devices are arranged offset.

In such an embodiment, since the two battery packs 11 enter or leave the battery cavities from different directions, a plurality of users do not affect each other in the process of replacing the battery packs 11, which is beneficial for the plurality of users to inspect and replace the two battery packs 11.

In an exemplary embodiment, as shown in fig. 4 and 5, a handle 16 is provided at the first end and/or the second end of the battery pack 11 for a user to hold, so that the user can pull or push the battery pack 11 to move during the process of replacing the battery pack 11 by the handle 16.

In an exemplary embodiment, the mass of the battery pack 11 includes, but is not limited to, being configured to be less than or equal to 25 kilograms, thus facilitating single-person replacement by a user. It should be understood that embodiments of the present disclosure are not limited thereto.

For example, the mass of the battery pack 11 may be configured to be 26 kg, 27 kg, 30 kg, 35 kg, or any other weight to meet the power consumption requirement of the electric vehicle.

Fig. 12 is a use state diagram of the electric vehicle shown in fig. 11, in which the door 21 of the electric vehicle according to the embodiment of the present invention is in a locked state.

According to an embodiment of the present disclosure, as shown in fig. 11, the electric vehicle further includes a door 21 and a lock 22. The door 21 is attached to the vehicle body 2 so as to be openable and closable. The lock 22 is mounted on the door 21 and adapted to lock the power supply device in the vehicle body 2.

In an exemplary embodiment, the door 21 is mounted to the vehicle body shell 24 in an openable and closable manner.

In detail, the door 21 and the shell 24 include, but are not limited to, any one of a fitting structure, a pivot structure, and a drawing structure.

It should be noted that any door 21 and lock 22 that can be used to close the opening of the battery compartment 13 in the art can be used as the door 21 and the lock 22, and are not specifically unfolded.

In an exemplary embodiment, the plurality of battery compartments 13 are positioned to cooperatively receive a door 21.

In another exemplary embodiment, a door 21 is mounted separately to each battery compartment 13 at the opening location.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (16)

1. A power supply device, comprising:

the battery compartment (13) is provided with a battery cavity with an opening, the bottom of the battery compartment (13) opposite to the opening is provided with a mounting part (133), and the mounting part (133) is provided with a first connector (134);

a battery pack (11) detachably mounted in the battery cavity, wherein a first end of the battery pack (11) facing the mounting part is provided with a second connector (111) suitable for being electrically connected with the first connector (134);

at least one locking assembly (12) comprising:

a fixing mechanism (122) mounted on one of the battery compartment (13) and the battery pack (11); and

a locking mechanism (121) mounted on the other of the battery compartment (13) and the battery pack (11) and adapted to be detachably fitted with the fixing mechanism (122) to restrain the battery pack (11) within the battery cavity so that the second tab (111) is maintained in an electrically connected state with the first tab (134).

2. The power supply device according to claim 1, wherein the fixing mechanism (122) is mounted at an opening position of the battery compartment (13), and the fixing mechanism (122) includes a hook portion (1221);

a lock mechanism (121) is provided with:

a pivot element (1212), a first end of which is pivotally mounted to an outer side of a second end of the battery pack opposite the first end of the battery pack; and

a locking ring (1213), a first end of the locking ring (1213) is pivotably mounted between a first end and a second end of the pivot member (1212), and the locking ring (1213) and a second end of the pivot member (1212) facing away from each other are sleeved on the hook portion (1221) and tensioned in a state where the second end of the pivot member (1212) is located at a first position close to the battery pack (11), so as to restrain the battery pack (11) in the battery compartment (13); in a second position state in which the second end of the pivot member (1212) is located away from the battery pack (11), the second end of the lock ring (1213) is disengaged from the hook portion (1221) and is in a released state to allow the battery pack (11) to be extended from the battery compartment (13).

3. The power supply device according to claim 2, wherein the locking mechanism (121) further comprises a mounting seat (1211), the mounting seat (1211) is mounted on an outer side of the second end of the battery pack (11), and the first end of the pivot member (1212) is pivotally mounted on the mounting seat (1211).

4. The power supply device according to claim 2, characterized in that the locking ring (1213) comprises:

a connecting pin (12131) passing through the pivot (1212) in a vertical direction;

two connecting members (12132), first ends of the two connecting members (12132) being rotatably connected to both ends of the connecting pin (12131), respectively; and

a hanging portion (12133) to which second ends of the two connecting members (12132) are connected, the hanging portion (12133) being detachably hung to the hook portion (1221).

5. The power supply device according to any one of claims 1 to 4, further comprising at least one positioning assembly (15) comprising:

a guide post (152) provided on one of the mounting member (133) and the first end of the battery pack (11) and protruding from a surface of the mounting member (133) or the first end of the battery pack (11); and

and a guide hole (151) provided in the other of the mounting member (133) and the first end of the battery pack (11), and adapted to be fitted with the guide post (152) to guide the second connector (111) to be joined to the first connector (134).

6. The power supply device according to claim 5, characterized by comprising two positioning components (15), wherein the guide posts (152) of the two positioning components (15) are arranged on two sides of the second joint (111), and the guide holes (151) of the two positioning components (15) are arranged on the mounting part (133).

7. The power supply device according to any one of claims 1 to 4, further comprising a sliding assembly (14) mounted within the battery cavity for sliding engagement with the battery pack (11) to slidably move the battery pack (11) into and out of the battery cavity in a first direction.

8. The power supply device according to claim 7, wherein the slide member (14) is mounted on and protrudes from a bottom surface of the battery cavity in a direction parallel to the first direction.

9. The power supply device according to claim 8, characterized in that the sliding assembly (14) comprises a slide bar.

10. An electric vehicle, comprising:

a vehicle body (2); and

at least two power supply devices (1) according to any one of claims 1 to 9, a first connector (134) of the power supply device (1) being electrically connected to the vehicle body (2) for supplying power to electrical equipment of the vehicle body (2).

11. Electric vehicle according to claim 10, characterized in that a plurality of said power supply devices (1) alternately supply at least a part of the consumers of said vehicle body (2).

12. The electric vehicle according to claim 10 or 11, characterized in that a plurality of said power supply devices (1) are mounted side by side on a frame (23) of said vehicle body (2).

13. Electric vehicle according to claim 12, characterized in that the power supply device (1) is mounted in the middle of the frame (23).

14. The electric vehicle according to claim 12, characterized in that the battery compartment (13) of the power supply device (1) is arranged in a horizontal direction.

15. The electric vehicle according to claim 14, characterized in that the battery cavity of the power supply device (1) extends in a first direction orthogonal to the wheelbase direction of the vehicle body (2).

16. The electric vehicle according to claim 10 or 11, characterized by further comprising:

a door (21) which is attached to the automobile body (2) so as to be openable and closable; and

and the lock (22) is arranged on the box door (21) and is suitable for locking the power supply device (1) in the automobile body (2).

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