CN211828881U

CN211828881U - A buffer memory frame and battery compartment for battery compartment

Info

Publication number: CN211828881U
Application number: CN202020254950.8U
Authority: CN
Inventors: 戴有发; 叶庆丰; 邱胜国; 袁丹
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Bozhon Precision Industry Technology Co Ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-10-30
Anticipated expiration: 2030-03-04

Abstract

The utility model relates to a buffer memory frame for battery compartment, including the mobilizable buffer memory mechanism of at least one part, buffer memory mechanism includes: the fixing plate is fixedly connected with the battery compartment frame; a battery carriage for supporting a battery; the battery carriage is connected with the fixed plate through a guide device; the battery carriage can move relative to the fixing plate under the driving of the driving device, so that the battery carriage can be in a first state or a second state; when the battery carriage is in the first state, the battery carriage leaves and releases the battery; when the battery carriage is in the second state, the battery carriage part contacts and supports the battery to temporarily store the battery. The buffer memory frame reaches the purpose of keeping in the battery through buffer memory mechanism's support and release battery, and simple structure also makes the battery can shift fast, the utility model discloses still relate to the battery compartment that has this buffer memory frame.

Description

A buffer memory frame and battery compartment for battery compartment

Technical Field

The utility model relates to a buffer memory technical field for electric automobile battery compartment, concretely relates to buffer memory frame and battery compartment for battery compartment.

Background

The pure electric vehicle is developed more and more rapidly, and one of the bottlenecks hindering the development of the pure electric vehicle is the charging problem of the power battery; the traditional mode is that the adoption fills electric pile quick charge, but its efficiency still is far away not as fast as refueling, and frequent quick charge has reduced battery life, and the cost of battery maintenance is high moreover. The existing solution is to change the battery directly by changing the battery on the electric vehicle, change the full-charge battery from the power change station, and change the power-lack battery and then charge the battery in the power change station, which improves the endurance efficiency of the electric vehicle.

Therefore trade the power station and still have the battery compartment that is used for the storage and the charging of battery, the battery compartment needs to be arranged in order the battery of insufficient power, full charge, bad electricity, carry often to the battery on the position of charging, the fixed battery that supports that sets up in the position of charging of the battery compartment that prior art set up usually, generally can only carry out horizontal shift to the battery with stacker or robot earlier and carry out vertical or horizontal direction motion after going on the position of charging again when needing to remove the battery, the battery compartment of this kind of mode is at bad electric treatment, trade the electric efficiency in the aspect of the removal.

SUMMERY OF THE UTILITY MODEL

To the weak point of prior art, the utility model aims to provide a buffer memory frame and battery compartment for battery compartment.

The technical scheme of the utility model outlines as follows:

there is provided a buffer storage rack for a battery compartment, comprising at least one partially movable buffer storage mechanism, the buffer storage mechanism comprising:

the fixing plate is fixedly connected with the battery compartment frame;

the battery carriage is used for supporting a battery;

the battery carriage is connected with the fixed plate through the guide device;

the driving device is used for driving the battery carriage to move relative to the fixing plate so as to enable the battery carriage to be in a first state or a second state; when the battery carriage is in a first state, the battery carriage leaves and releases the battery; and when the battery carriage is in the second state, the battery carriage part contacts and supports the battery.

Preferably, the battery carriage comprises a connecting end and a supporting end, and the connecting end is fixedly connected with the guiding device; when the battery carriage is in a first state, the supporting end leaves and releases the battery; when the battery carriage is in the second state, the supporting end contacts and supports the battery.

Preferably, the support end of the battery carriage comprises a first support part close to the front part of the battery carriage and a second support part close to the rear part of the battery carriage; a first hollow part is arranged between the first supporting part and the second supporting part and used for accommodating the battery part structure in the second state.

Preferably, the guide device is a linear guide rail, and comprises a sliding block and a guide rail, the guide rail is fixedly connected with the fixed plate, and the sliding block is fixedly connected with the battery carriage so as to enable the battery carriage to move along the guide rail direction relative to the fixed plate.

Preferably, the linear guide rail comprises a first linear guide rail and a second linear guide rail which are arranged in parallel along the movement direction of the battery carriage, the first linear guide rail is close to the front part of the fixing plate, and the second linear guide rail is close to the rear part of the fixing plate.

Preferably, the connecting end of the battery carriage comprises a first connecting portion connected with the first linear guide rail and a second connecting portion connected with the second linear guide rail, and a second hollow portion is formed between the first connecting portion and the second connecting portion and used for accommodating the driving device.

Preferably, the buffer mechanism further comprises a position sensing device for feeding back the state of the battery carriage.

Preferably, the position sensing device comprises a first sensor and a second sensor which are fixedly connected with the fixing plate, and a sensing contact piece which is fixedly connected with the battery carriage; when the sensing contact piece is close to the first sensor, the battery carriage is in a first state; when the sensing contact piece is close to the second sensor, the battery carriage is in a second state.

Preferably, the driving mode of the driving device comprises electric, hydraulic and pneumatic.

Preferably, when the driving mode is pneumatic, the driving device comprises an air cylinder, an air cylinder fixing seat and a floating joint seat, the air cylinder is fixedly connected with the fixing plate through the air cylinder fixing seat, and the air cylinder is fixedly connected with the battery carriage through the floating joint seat.

Preferably, the buffer frame comprises two movable buffer mechanisms respectively arranged at the left end and the right end of the buffer frame; the battery plankers of the two caching mechanisms move towards the battery direction and are in a second state, and the battery plankers respectively support the left end and the right end of the battery; the battery plankers of the two caching mechanisms move away from the battery and are in a first state, and the battery plankers respectively leave the left end and the right end of the battery and release the battery.

In another aspect, a battery compartment comprises a battery compartment body, wherein the battery compartment body comprises a battery compartment frame, at least one charging frame and a cache frame for the battery compartment, and the battery compartment frame forms a basic framework of the battery compartment; the charging frame is positioned in the battery cabin frame to charge the battery; the buffer frame is positioned in the battery compartment frame to temporarily store the battery.

Preferably, the buffer frame is located below the charging frame, and the batteries located in the buffer frame can move to the bottom layer of the battery cabin along the vertical direction.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides a buffer memory frame and battery compartment for battery compartment, wherein the buffer memory frame is nimble to be set up the buffer memory mechanism that can carry out switching between first state (release battery) and second state (support battery), can support the battery, can let the battery leave the buffer memory frame again and can directly descend and pass the plane that the buffer memory frame was located, makes things convenient for the removal of battery, for the first state (release battery) of convenient buffer memory mechanism and second state (support battery) target in place, sets up proximity sensor; the buffer storage frame can be supported by buffer storage mechanisms arranged on two sides, so that the bottom space of the battery can be used for supporting and receiving the battery of other equipment, and the purpose of temporarily storing the battery and facilitating battery transportation is achieved. In the battery compartment using the buffer storage frame, particularly, the buffer storage frame is arranged below the charging frame, so that when the batteries are exchanged, the buffer storage frame returns to a release state, the batteries descend, the battery shell moves to the bottom of the battery compartment, the battery compartment is convenient to move transversely from the bottom, or the temporary buffer storage frame is used for placing bad electricity, and the bad electricity is also convenient to process. In the battery replacement process, the buffer storage rack can be used for temporarily storing the undervoltage battery or the full-voltage battery, and then the battery can directly move up and down to perform the battery replacement operation. The buffer storage frame is simple in structure, high in safety and capable of meeting the requirement of efficiency application of the battery bin.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic view of the front view structure of the buffer storage rack of the present invention;

fig. 2 is a front view structural diagram of a supporting state of the buffer memory mechanism of the present invention;

fig. 3 is a schematic view of the front view structure of the release state of the buffer memory mechanism of the present invention;

fig. 4 is a schematic view of the front view structure of the supporting state of the buffer memory mechanism of the present invention;

fig. 5 is a schematic view of a releasing state front view perspective structure of another embodiment of the buffer memory mechanism of the present invention;

fig. 6 is a schematic view of the top view structure of the fixing plate and the linear guide of the buffer mechanism of the present invention;

fig. 7 is a schematic view of the top view structure of the battery carriage of the buffer memory mechanism of the present invention;

fig. 8 is a schematic structural view of the battery compartment in front view according to the present invention;

fig. 9 is a front view structural schematic diagram of a battery compartment according to another embodiment of the present invention.

Description of reference numerals:

20-a caching mechanism; 21-fixing the plate; 22-a battery carriage; 221-a connection end; 222-a support end;

2211-a first connection; 2212-second connecting portion; 2213-second hollowed out portion; 2221-first supporting part; 2222-a second support; 2223-first hollowed out section;

23-a linear guide rail; 231-a guide rail; 232-a slide block;

27-a first linear guide; 271-a first track; 272-a first slider; 273-second slider;

28-a second linear guide; 281-a second track; 282-third slider; 283-a fourth slider;

24-a position sensing device; 241-a first sensor; 242 — a second sensor; 243-sensing contact; 251-cylinder fixing seat; 252-a floating joint mount; 1-a battery compartment body; 2-a cache shelf; 3-a charging rack; 4-a battery compartment frame; 5-a battery.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a more detailed description of the present invention, which will enable those skilled in the art to make and use the present invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the following embodiments or technical features can be used to form a new embodiment without conflict. It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

In one aspect, the present invention provides a buffer storage rack 2 for a battery compartment, as shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, including at least one movable buffer storage mechanism 20, the buffer storage mechanism 20 includes: the fixing plate 21 is fixedly connected with the battery compartment frame 4; a battery carriage 22 for supporting the battery 5 and having a first state (released) and a second state (supported); the battery carriage 22 is connected with the fixing plate 21 through the guide device; the driving device is used for driving the battery carriage 22 to move relative to the fixing plate 21 under the driving of the driving device, and particularly, the battery carriage 22 can move in a certain direction under the guidance of the guiding device so as to be in a first state or a second state; when the battery carriage 22 is in the first state, the battery carriage 22 leaves and releases the battery 5; when the battery carriage 22 is in the second state, part of the battery carriage 22 contacts and supports the battery 5; on one hand, the battery temporary storage device can be used for storing batteries, and on the other hand, the batteries can be conveniently moved, so that the purpose of temporarily storing the batteries is achieved; the buffer mechanism 20 has a simple structure, is convenient to switch states, and is firm in supporting the battery and convenient and quick in battery movement.

In another embodiment, the battery carriage 22 includes a connecting end 221 and a supporting end 222, the connecting end 221 is fixedly connected with the guiding device; when the battery carriage 22 is in the first state, the support end 222 leaves and releases the battery 5; when the battery carriage 22 is in the second state, the support end 222 contacts and supports the battery 5; through the arrangement of the connecting end 221 and the supporting end 222 of the battery carriage 22, when the battery is not required to be temporarily stored, the battery carriage 22 is driven to be retracted to a first state through the guiding device, and the supporting end 222 leaves the battery; the connecting end 221 and the supporting end 222 of the battery carriage 22 shown in fig. 3 and 4 can be arranged in a left-right manner, or the front and rear edges of the battery carriage and the front and rear edges of the fixing plate in the figures can be used as guiding device connecting pieces, so that the connecting end 221 and the supporting end 222 are arranged in a left-right manner which is not strict, and the purpose of guiding movement can also be achieved.

In another embodiment, as shown in fig. 7, the supporting end 222 of the battery carriage 22 includes a first supporting portion 2221 near the front of the battery carriage 22, a second supporting portion 2222 near the rear of the battery carriage 22; a first hollow portion 2223 is disposed between the first supporting portion 2221 and the second supporting portion 2222, and is used for accommodating a part of the structure of the battery 5 in the second state, and by providing the first hollow portion 2223, while it is ensured that the battery carriage 22 can have an effective supporting working surface by the two supporting portions, the hollow portion can accommodate a protrusion or a part formed on the structure of the battery, and the hollow portion can also be used as a space-avoiding groove to provide an action area of a working mechanism for exchanging the battery with the battery compartment.

In another embodiment, as shown in fig. 4, 5, and 6, the guiding device is a linear guide 23, and includes a slider 232 and a guide 231, the guide 231 is fixedly connected to the fixing plate 21, the slider 232 is fixedly connected to the battery carriage 22, so that the battery carriage 22 moves along the guide 231 relative to the fixing plate 21, the guiding device may be a common linear guide, or other guide device for guiding movement, a lead screw may be mounted on the fixing plate 21, a nut is sleeved on the lead screw, the nut and the battery carriage 22 are converted into linear movement of the nut by the rotational movement of the lead screw, so that the linear movement of the battery carriage 22 can be used for accurate movement of the battery carriage 22, and the number of turns of rotation and the power time of the motor can be used for converting the linear displacement of the battery carriage, so that a subsequent proximity sensor is not needed; the embodiment mainly describes simple guide rail movement, and the conversion between two states can also comprise other connecting devices with guide movement; on the other hand, in this embodiment, the guide rail 231 is fixedly connected to the fixing plate 21, the sliding block 232 is fixedly connected to the battery carriage 22, or the guide rail 231 is fixedly connected to the battery carriage 22, and the sliding block 232 is fixedly connected to the fixing plate 21, because the guide rail and the sliding block are interchangeable in a broad sense, for example, the front and rear sides of the battery carriage 22 in this view are partially recessed and wrapped around the front and rear sides of the fixing plate 21, the recessed and wrapped part of the battery carriage 22 is used as the sliding block, and the front and rear sides of the fixing plate 21 are used as the guide rail 231, and the recessed part corresponds to the outer edge of the fixing plate 21, so that the recessed part or the outer edge can be a track or a sliding block, and in these cases, an additional linear guide rail component defined narrowly is not needed, but the battery carriage 22 and the fixing plate 21, of course, the outer edge of the fixing plate 21 may form an inner concave portion to wrap the outer edge of the battery carriage 22 upward.

In another embodiment, as shown in fig. 6, the linear guide 23 includes a first linear guide 27 and a second linear guide 28 arranged in parallel along the moving direction of the battery carriage 22, the first linear guide 27 is near the front of the fixing plate 21, and the second linear guide 27 is near the rear of the fixing plate 21; two linear guide rails are adopted and are relatively distributed at the front part and the rear part, so that the structural size of the linear guide rails can be saved under the conditions of keeping effective supporting area and ensuring stability and safety, and the corresponding positions of the connecting parts along the battery carriage 22 are also close to the front part and the rear part; of course, the number of the slide blocks on the linear guide may be more than two as required, and in this case, the first linear guide 27 includes the first track 271, the first slide block 272 and the second slide block 273, and the second linear guide 28 includes the second track 281, the third slide block 282 and the fourth slide block 283, so that the safety and stability can be increased.

In another embodiment, as shown in fig. 5, 6, and 7, the connecting end 221 of the battery carriage 22 includes a first connecting portion 2211 connected to the first linear guide 27, a second connecting portion 2212 connected to the second linear guide 28, and a portion between the first connecting portion 2211 and the second connecting portion 2212 is a second hollow portion 2213 for accommodating the driving device 25, and two corresponding connecting portions are adopted under the condition of ensuring safety and stability, and the hollow portion is used for accommodating the driving device 25, so that the entire buffer mechanism has a compact structure, for example, capable of accommodating the driving cylinder and the related connecting members.

In another embodiment, the buffer mechanism 20 further includes a position sensing device 24 for feeding back the state of the battery carriage 22, as shown in fig. 2, the position sensing device 24 may be used to reflect the position of the battery carriage 22 in real time, or determine that the battery carriage 22 is in position when in the first state or the second state. Of course, the travel of the stop or drive means may be used to determine the condition in addition to the sensing means, and the manner in which the sensing means 24 is employed is safer.

In another embodiment, as shown in fig. 3 and 4, the position sensing device 24 includes a first sensor 241 and a second sensor 242 fixedly connected to the fixing plate 21, and a sensing contact 243 fixedly connected to the battery carriage 22; when the battery carriage 22 moves relative to the fixing plate 21, the sensing contact 243 also moves; when the sensing contact 243 is close to the first sensor 241, the user can be informed that the battery carriage 22 is in the first state (fig. 3) through a corresponding electronic component or a host program, and can also set the stop motion at the same time; when the sensing contact 243 is close to the second sensor 242, the user can be informed that the battery carriage 22 is in the second state (fig. 4), the stop motion can be set, the position change can be conveniently and intuitively reflected, and the stop condition of the action program can be set. Of course, as shown in the figure, the first sensor 241 and the second sensor 242 may be fixed by related nuts or may be fixed after fine adjustment of positions so as to meet the change of actual working conditions or the stroke adjustment of maintenance.

In another embodiment, as shown in fig. 5, the driving means 25 includes electric, hydraulic, and pneumatic means, and may be correspondingly powered, and not only may be in the first state or the second state, but also may be adjusted at a position between the first state and the second state when the precise movement is required, so as to satisfy the storage of batteries of different types.

In another embodiment, as shown in fig. 5, when the driving mode is pneumatic, the driving device 25 includes an air cylinder (not shown), an air cylinder fixing seat 251 and a floating connector seat 252, the air cylinder is fixedly connected to the fixing plate 21 through the air cylinder fixing seat 251, and the air cylinder is fixedly connected to the battery carriage 22 through the floating connector seat 252. The battery carriage 22 is driven to move relative to the fixing plate 21 by the movement of the cylinder. In the hydraulic and electric motion modes, the device also has corresponding specific structures, which are not described again.

In another embodiment, as shown in fig. 1 and 8, the buffer frame 2 includes two movable buffer mechanisms 20 respectively disposed at the left and right ends of the buffer frame 2; the battery plankers 22 of the two caching mechanisms 20 move towards the battery 5 and are in a second state, and respectively support the left end and the right end of the battery 5; the battery plankers 22 of the two caching mechanisms 20 move away from the battery 5 and are in a first state, and respectively leave the left end and the right end of the battery and release the battery; as shown in the figure, the first buffer mechanism and the second buffer mechanism are arranged along two sides of the movement direction of the vertical battery carriage 22 in the same horizontal plane, so that the first buffer mechanism and the second buffer mechanism support or release the battery together; the two buffer mechanisms are adopted to work, the left side and the right side of the battery are acted, on one hand, the movement stroke of the battery carriage is short while effective support is guaranteed, the releasing and supporting actions are fast, on the other hand, the bottom space of the battery is free, the battery can be supported by other mechanisms (such as a battery replacing trolley and a stacker crane goods taking arm) of a battery replacing station, and the battery exchange work on the buffer racks can be smoothly and quickly completed. Of course, one buffer mechanism (in a manner similar to the stacker crane picking arm, and corresponding to other exchange mechanisms, the other exchange mechanisms are provided with the position avoiding grooves) or a plurality of buffer mechanisms can be used for finishing the temporary storage work together.

On the other hand, the utility model provides a battery compartment, as shown in fig. 8 and fig. 9, including battery compartment body 1, battery compartment body 1 includes battery compartment frame 4, at least one charging frame 3 and as above-mentioned at least one buffer memory frame 2 that is used for the battery compartment, battery compartment frame 4 constitutes the basic skeleton of battery compartment 1; the charging frame 3 is positioned in the battery bin frame 4 to form a layer of platform for accommodating and charging batteries; buffer memory frame 2 is located battery compartment frame 4 for battery 5 is kept in to accomplish bad electricity and handle, insufficient voltage battery and full charge battery's quick replacement transfer work class battery arrangement work.

In another embodiment, as shown in fig. 8 and 9, the buffer frame 2 is located below the charging frame 3, and the batteries 5 located in the buffer frame 2 can move in the vertical direction to the bottom of the battery compartment 1. The batteries of the buffer frame 2 shown in fig. 8 are supported with the charging frame 3 arranged above and the buffer frame 2 arranged below, so that the batteries 5 when released can fall to the bottom of the battery compartment 1, thereby facilitating the movement of the batteries 5 horizontally away from the battery compartment at the bottom. For example, the lifting platform can be adopted to support the battery 5 on the buffer frame 2 in the figure, then the buffer mechanism returns to the first state (release), and the lifting platform acquires the battery 5 and can descend to the bottom to facilitate movement; or the battery is lifted to a charging position (the charging position can also adopt a charging frame with a corresponding supporting and releasing state to obtain the battery), so that a common stacker is not needed to obtain the battery, and the charging position is translated out and then vertically moved. In other modes, in the battery replacement process, the buffer storage frames can be used for temporarily storing insufficient or full batteries (as shown in fig. 9, two buffer storage frames are provided, one is temporarily stored with full power and the other is temporarily stored with insufficient power), so that the time for transporting the batteries of the battery replacement trolley is shortened, the movement of the insufficient and full power can be carried out simultaneously, the batteries are exchanged at the corresponding battery bin with the buffer storage frames, and the battery replacement efficiency is accelerated.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields where the invention is suitable, and further modifications may readily be made by those skilled in the art, and the invention is therefore not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.

Claims

1. A buffer storage rack for a battery compartment, comprising at least one partially movable buffer storage mechanism, the buffer storage mechanism comprising:

the fixing plate is fixedly connected with the battery compartment frame;

the battery carriage is used for supporting a battery;

2. The buffer storage rack for the battery compartment as claimed in claim 1, wherein the battery carriage comprises a connecting end and a supporting end, the connecting end is connected with the guiding device; when the battery carriage is in a first state, the supporting end leaves and releases the battery; when the battery carriage is in the second state, the supporting end contacts and supports the battery.

3. The buffer storage rack for the battery compartment as claimed in claim 2, wherein the support end of the battery carriage comprises a first support part near the front part of the battery carriage, a second support part near the rear part of the battery carriage; a first hollow part is arranged between the first supporting part and the second supporting part and used for accommodating the battery part structure in the second state.

4. The buffer storage rack for the battery compartment as claimed in claim 2, wherein the guiding device is a linear guide rail, and comprises a sliding block and a guide rail, the guide rail is fixedly connected with the fixing plate, and the sliding block is fixedly connected with the battery carriage so as to move the battery carriage relative to the fixing plate along the direction of the guide rail.

5. The buffer storage rack for the battery compartment as claimed in claim 4, wherein the linear guide comprises a first linear guide and a second linear guide arranged in parallel along the moving direction of the battery carriage, the first linear guide is near the front of the fixing plate, and the second linear guide is near the rear of the fixing plate.

6. The buffer storage rack for the battery compartment as claimed in claim 5, wherein the connecting end of the battery carriage comprises a first connecting portion connected to the first linear guide rail and a second connecting portion connected to the second linear guide rail, and a second hollow portion is formed between the first connecting portion and the second connecting portion for accommodating the driving device.

7. The buffer storage rack for the battery compartment as claimed in claim 1, wherein the buffer storage mechanism further comprises a position sensing device for feeding back the state of the battery carriage.

8. The buffer storage rack for the battery compartment as claimed in claim 7, wherein the position sensing device comprises a first sensor and a second sensor fixedly connected with the fixing plate, and a sensing contact fixedly connected with the battery carriage; when the sensing contact piece is close to the first sensor, the battery carriage is in a first state; when the sensing contact piece is close to the second sensor, the battery carriage is in a second state.

9. The buffer storage rack for the battery compartment as claimed in claim 1, wherein the driving means includes electric, hydraulic and pneumatic driving.

10. The buffer storage rack for the battery compartment as claimed in claim 9, wherein when the driving manner is pneumatic, the driving device comprises an air cylinder, an air cylinder fixing seat and a floating joint seat, the air cylinder is fixedly connected with the fixing plate through the air cylinder fixing seat, and the air cylinder is fixedly connected with the battery carriage through the floating joint seat.

11. The buffer storage rack for the battery compartment as claimed in any one of claims 1 to 10, comprising two movable buffer storage mechanisms respectively arranged at the left and right ends of the buffer storage rack; the battery plankers of the two caching mechanisms move towards the battery direction and are in a second state, and the battery plankers respectively support the left end and the right end of the battery; the battery plankers of the two caching mechanisms move away from the battery and are in a first state, and the battery plankers respectively leave the left end and the right end of the battery and release the battery.

12. A battery compartment comprising a battery compartment body comprising a battery compartment frame, at least one charging rack and a buffer rack for a battery compartment as claimed in claim 11, the battery compartment frame constituting a basic skeleton of the battery compartment; the charging frame is positioned in the battery cabin frame to charge the battery; the buffer frame is positioned in the battery compartment frame to temporarily store the battery.

13. The battery compartment of claim 12, wherein the buffer shelf is located below the charging shelf, and the batteries located in the buffer shelf are capable of moving in a vertical direction to a bottom layer of the battery compartment.