Disclosure of Invention
The invention aims to provide a power battery box so as to alleviate the technical problems in the prior art.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
The embodiment of the invention provides a power battery box, which comprises a box body and a supporting travelling mechanism:
The lifting travelling wheel mechanism comprises a driving transmission assembly, a travelling bracket and a travelling wheel arranged at the bottom of the travelling bracket, wherein the driving transmission assembly is fixed on the bottom wall of the box and connected with the travelling bracket and used for driving the travelling bracket to lift relative to the box so that the travelling wheel rises to a first position or falls to a second position, when the travelling wheel is positioned at the first position, the bottom surface height of the travelling wheel is not lower than the bottom surface height of the supporting leg, and when the travelling wheel is positioned at the second position, the bottom surface height of the travelling wheel is lower than the bottom surface height of the supporting leg.
In an alternative embodiment, the walking bracket comprises a movable bearing frame, two movable transverse frames and two groups of hinging rods, wherein the wheel frame of the walking wheel is fixedly arranged on the movable bearing frame, the movable bearing frame is provided with a first direction and a second direction which are mutually perpendicular in a horizontal plane, the two movable transverse frames extend along the second direction and are arranged above the movable bearing frame at intervals along the first direction, the two groups of hinging rods are arranged at two opposite ends of the movable bearing frame along the first direction, one end of each group of hinging rods is hinged with the corresponding end part of the movable bearing frame, and the other end of each group of hinging rods is hinged with one movable transverse frame close to the corresponding hinging rod;
The driving transmission assembly comprises a bidirectional screw and a driving motor;
The two movable cross frames are respectively in threaded sleeve joint with the outer parts of two threaded rod sections with opposite rotation directions of the bidirectional screw rod;
The driving motor is fixed on the bottom wall of the box body, and an output shaft of the driving motor is connected with one end of the bidirectional screw rod and is used for driving the bidirectional screw rod to rotate so that the two groups of movable cross frames move relatively or reversely, and therefore the two groups of hinging rods are driven to rotate, and then the movable bearing frames are driven to lift relatively to the box body so that the travelling wheels ascend to a first position or descend to a second position.
In an alternative embodiment, the driving transmission assembly comprises two bidirectional screws which are arranged at intervals along the second direction, an output shaft of the driving motor is connected with the end part of one bidirectional screw, the driving transmission assembly further comprises a first transmission wheel and a second transmission wheel which are respectively and fixedly sleeved outside one end of the two sets of bidirectional screws, and the first transmission wheel and the second transmission wheel are in transmission connection through a transmission belt or a transmission chain;
And/or each group of the hinge rods respectively comprises a first hinge rod and a second hinge rod which are arranged at intervals along the second direction of the movable bearing frame.
In an alternative embodiment, the movable cross frame is provided with a connecting groove, a rotating shaft is fixed in the connecting groove, and one end of the hinge rod is inserted into the connecting groove and is rotatably sleeved outside the rotating shaft.
In an alternative embodiment, the driving motor is fixedly installed on the side wall of the supporting leg, a mounting hole is formed in the supporting leg, and the end portion of the bidirectional screw rod is rotatably installed inside the mounting hole.
In an alternative embodiment, a battery pack insulating isolation frame is fixedly arranged in the box body;
The battery pack insulating isolation frame is provided with a plurality of battery bins and a plurality of groups of limiting structures which are in one-to-one correspondence with the battery bins, wherein bin openings of the battery bins face to the same side wall of the box body, contact type connecting terminals are fixedly arranged on the inner wall of each battery bin, and the limiting structures are used for fixing the battery monomers in the corresponding battery bins when the battery monomers are fixed in the battery bins so as to enable the contact type connecting terminals to keep contact with electrode ends of the battery monomers;
The battery pack controller is arranged on the outer side wall of the box body, contact type connecting terminals in the battery bins are connected with the battery pack controller in a circuit mode, the battery pack controller can control the circuit connection relation among the battery bins, and the battery pack controller is fixedly connected with charging and discharging plugs.
In an alternative embodiment, the limit structure comprises a limit housing and a locking plate;
The bin openings of the battery bins face to the front side of the box body, the limiting shells are arranged on the front side surfaces of the battery pack insulating isolation frames and correspond to the bin openings of the battery bins, the limiting shells are U-shaped pieces protruding towards the front side of the box body and penetrating up and down, and guide holes extending in the vertical direction are formed in the front side walls of the limiting shells;
The locking plate is vertically inserted into the limiting shell, a lifting handle is fixed on the front side of the locking plate and penetrates through the guide hole, and in a free state, the locking plate downwards extends out of the limiting shell to be blocked on the front side of a bin opening corresponding to the battery bin, and is driven to upwards slide along the guide hole, so that the bin opening corresponding to the battery bin can be opened by upwards sliding the locking plate relative to the limiting shell.
In an alternative embodiment, the bin openings of the battery bins face to the front side of the box body, the box body comprises box doors covering the bin openings of the battery bins, plugging tracks are fixedly arranged on the peripheral walls of the box body, plugging ports are arranged at the top ends of the plugging tracks, the box doors are plugged into the plugging tracks from the plugging ports, and box door handles are arranged at the top or the outer sides of the box doors.
In an alternative embodiment, the bin openings of the battery bins face to the front side of the box body, the rear side wall of each battery bin is provided with a vent, and the power battery box further comprises a heat dissipation rear cover fixedly mounted on the rear side wall of the box body and communicated with each vent.
In an alternative embodiment, a plurality of air inlets are formed in the left side wall and the right side wall of the heat dissipation rear cover, a heat dissipation fan is fixedly arranged on the bottom wall of the heat dissipation rear cover, a temperature sensor is arranged on the inner side wall of the top of the heat dissipation rear cover, and an execution controller is arranged on the outer side wall of the heat dissipation rear cover;
The temperature sensor and the cooling fan are connected with the execution controller, and the execution controller can receive temperature information transmitted by the temperature sensor and turn on or turn off the cooling fan according to the temperature information.
In particular, in the context of the present invention, the foregoing "and/or" means that "and/or" the technical features before "and" the technical features after "and/or" are simultaneously or selectively arranged.
The embodiment of the invention at least has the following beneficial effects:
The power battery box provided by the embodiment of the invention realizes flexible switching between moving and fixed states by configuring the supporting legs and the supporting travelling mechanism of the lifting travelling wheel mechanism. In particular, the lifting travelling wheel mechanism can control the lifting of the travelling wheel by driving the transmission assembly, so that the travelling wheel can be freely switched between a first position (the height of the bottom surface of the travelling wheel is not lower than the height of the bottom surface of the supporting leg) and a second position (the height of the bottom surface of the travelling wheel is lower than the height of the bottom surface of the supporting leg), and the design has the following remarkable advantages compared with the prior art:
(1) The stability and the safety during the fixing are that when the power battery box is moved to a designated position and needs to be fixed, the travelling wheel is lifted to the first position and supported by the supporting legs in a grounding way, and the stability and the safety of the power battery box in the using process can be ensured due to the fact that the supporting legs usually have better stability and bearing capacity.
The power battery box provided by the embodiment of the invention has the advantages that the stability and smoothness during movement and the support stability during fixation are both considered, the adaptability of the power battery box in different application scenes is improved through the design of bimodal switching, and meanwhile, the operation convenience during switching between the movement state and the fixed state is also considered, so that the power battery box is particularly suitable for scenes needing motorized deployment such as temporary energy storage sites or remote area operation.
For other beneficial effects that can be achieved by the power battery box provided by the embodiment of the application, reference may be made to the detailed description of the specific embodiment of the application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is an axial schematic view of an overall structure of a power battery box provided by an embodiment of the invention in a state that a box door is closed;
fig. 2 is a schematic diagram of a portion of a power battery box according to an embodiment of the present invention;
Fig. 3 is a schematic diagram of the overall structure of a supporting and traveling mechanism in a power battery box according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a part of a power battery box according to an embodiment of the present invention;
fig. 5 is an axial schematic view of the whole structure of the power battery box provided by the embodiment of the invention in a state that a box door is opened;
FIG. 6 is a partial enlarged view of the spacing structure of FIG. 5;
Fig. 7 is a schematic diagram of a part of a power battery box according to an embodiment of the present invention;
Fig. 8 is a schematic axial view of an overall structure of a heat dissipation back cover in a power battery box according to an embodiment of the present invention;
Fig. 9 is a schematic axial view of an overall structure of a heat dissipation back cover in a power battery box according to an embodiment of the present invention.
The icon comprises a 1-box body, a 101-plug track and a 1010-plug interface;
2-supporting travelling mechanism, 21-supporting leg, 22-lifting travelling wheel mechanism, 3-driving transmission component, 31-bidirectional screw rod, 32-driving motor, 33-driving controller, 34-first driving wheel, 35-second driving wheel, 4-travelling support, 41-movable bearing frame, 42-movable transverse frame, 421-connecting groove, 422-rotating shaft, 43-hinging rod, 5-travelling wheel, 6-travelling wheel smooth retaining mechanism, 61-dust box, 611-control panel, 62-suction fan and 63-suction channel;
7-battery pack insulating isolation frames, 70-battery bins, 71-contact type connecting terminals, 72-limiting structures, 721-limiting shells, 7210-guide holes, 722-locking plates, 7221-handles, 8-battery pack controllers, 81-charging and discharging plugs, 9-box doors, 91-box door handles, 92-high-voltage warning signs and 10-battery monomers;
11-a heat dissipation rear cover, 111-an air inlet, 12-a heat dissipation fan, 121-a screen plate, 13-a temperature sensor and 14-an execution controller.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that like reference numerals and letters refer to like items in the drawings, and thus once an item is defined in one drawing, no further definition or explanation thereof is necessary in subsequent drawings.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal" and "vertical" do not denote that the component is required to be absolutely horizontal or overhanging, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
The present embodiment provides a power battery box, referring to fig. 1 to 3, which includes a box body 1 and a supporting running mechanism 2. As shown in fig. 1 to 3, the supporting travelling mechanism 2 is mounted at the bottom of the box 1, and specifically comprises supporting legs 21 and a lifting travelling wheel mechanism 22, wherein the lifting travelling wheel mechanism 22 comprises a driving transmission assembly 3, a travelling support 4 and a travelling wheel 5 mounted at the bottom of the travelling support 4, the driving transmission assembly 3 is fixed at the bottom wall of the box 1 and connected with the travelling support 4, and is used for driving the travelling support 4 to lift relative to the box 1 so as to enable the travelling wheel 5 to rise to a first position or fall to a second position, when the travelling wheel 5 is in the first position, the bottom surface height of the travelling wheel 5 is not lower than the bottom surface height of the supporting legs 21, and when the travelling wheel 5 is in the second position, the bottom surface height of the travelling wheel 5 is lower than the bottom surface height of the supporting legs 21. The travelling wheel 5 may be a directional wheel structure with a definite direction or a universal wheel structure with an indefinite direction, and for convenience of movement of an operator, the universal wheel structure is preferably adopted. The number of the supporting legs 21 and the number of the running wheels 5 are designed according to the specific arrangement angle, preferably four are designed as shown in fig. 1 to 3, or two, three or more are designed respectively to be capable of stably bearing the box body 1 as a design element, and the number of the supporting legs 21 and the number of the running wheels 5 can be the same or different.
The power battery box provided by the embodiment realizes flexible switching between the moving and fixed states of the power battery box by configuring the supporting walking mechanism 2 of the supporting legs 21 and the lifting travelling wheel mechanism 22. Specifically, the lifting traveling wheel mechanism 22 can control the lifting of the traveling wheel 5 by driving the transmission assembly 3, so that the traveling wheel 5 can be freely switched between a first position (the bottom surface height of the traveling wheel 5 is not lower than the bottom surface height of the supporting leg 21) and a second position (the bottom surface height of the traveling wheel 5 is lower than the bottom surface height of the supporting leg 21), and the design has the following remarkable advantages compared with the prior art:
(1) The high efficiency and flexibility of moving are that when the power battery box needs to be moved, the travelling wheel 5 is lowered to the second position, the power battery box is moved to the target position conveniently and quickly by utilizing the flexibility and bearing capacity of the travelling wheel 5, and the stability and safety of fixing are that when the power battery box is moved to the designated position and needs to be fixed, the travelling wheel 5 is lifted to the first position and is supported by the supporting legs 21 in a grounding way, and the stability and the safety of the power battery box in the using process can be ensured due to the fact that the supporting legs 21 have good stability and bearing capacity.
The power battery box provided by the embodiment has the advantages that the stability and smoothness during movement and the support stability during fixation are both considered, the adaptability of the power battery box in different application scenes is improved through the design of bimodal switching, meanwhile, the operation convenience during switching between the movement state and the fixed state is also considered, and the power battery box is particularly suitable for scenes needing maneuvering deployment such as temporary energy storage sites or remote area operation.
In this embodiment, the walking bracket 4 and the driving transmission assembly 3 can be designed in various ways, including but not limited to, using a longitudinal telescopic mechanism (e.g. an electric push rod assembly, a cylinder piston rod assembly, a hydraulic cylinder piston rod assembly, etc.) to directly control the lifting of the walking bracket 4, but such a structure requires a relatively high vertical distance between the bottom surfaces of the housing 1 of the power battery housing, so that the telescopic mechanism is suitable for a relatively large installation space, and is not suitable for some installation environments with limited space.
In this regard, with continued reference to fig. 1-3 and with particular reference to fig. 3, in an alternative implementation of the present embodiment, the walking frame 4 specifically includes a movable carrier 41, two movable cross frames 42, and two sets of hinge rods 43, the wheel frame of the walking wheel 5 is fixedly mounted on the bottom surface or side surface (preferably, the bottom surface) of the movable carrier 41, and the movable carrier 41 has a first direction and a second direction perpendicular to each other in a horizontal plane, where the two movable cross frames 42 extend along the second direction and are disposed above the movable carrier 41 at intervals along the first direction. Along the first direction, two sets of hinge rods 43 are disposed at two opposite ends of the movable carrier 41, and one end of each set of hinge rods 43 is hinged to a corresponding end of the movable carrier 41, and the other end is hinged to a movable cross frame 42 adjacent to the corresponding hinge rod 43. The driving transmission assembly 3 specifically comprises a bidirectional screw rod 31 and a driving motor 32, wherein the bidirectional screw rod 31 extends along a first direction, two ends of the bidirectional screw rod 31 are rotatably arranged on the bottom wall of the box body 1, and two movable cross frames 42 are respectively in threaded sleeve joint with the outer parts of two sections of threaded rod sections of the bidirectional screw rod 31 which are opposite in rotation direction. The driving motor 32 is fixed on the bottom wall of the box 1, and an output shaft thereof is connected with one end of the bidirectional screw 31, and is used for driving the bidirectional screw 31 to rotate, when the bidirectional screw 31 rotates, the two groups of movable cross frames 42 move relatively or oppositely, so as to drive the two groups of hinging rods 43 to rotate, and further drive the movable bearing frame 41 to lift relatively to the box 1, so that the travelling wheel 5 rises to the first position or falls to the second position.
In this alternative embodiment, the movable carrier 41 may be a whole plate structure or a frame structure. The driving transmission assembly 3 may further include a driving controller 33 connected to the driving motor 32, where a casing of the driving controller 33 may be fixedly installed on a bottom surface of the case 1, for performing starting, stopping and steering control on the driving motor 32, or may be a direct integrated control chip inside the driving motor 32, and the external controller may control the motion of the driving motor 32. In addition, the driving transmission assembly 3 can precisely control the relative or opposite movement of the two groups of movable crossbeams 42 by utilizing the driving motor 32 and the bidirectional screw 31, thereby driving the hinging rods 43 to rotate, realizing the lifting of the movable bearing frame 41, and the mechanism ensures that the travelling wheel 5 can be accurately switched between a first position (lifting) and a second position (lowering), and the travelling wheel 5 can be positioned at different heights according to actual ground conditions by the driving motor 32 so as to meet the requirements of different working scenes.
In this alternative embodiment, further alternatively, the driving transmission assembly 3 includes two bidirectional screws 31 arranged at intervals along the second direction, an output shaft of the driving motor 32 is connected with an end portion of one bidirectional screw 31, the driving transmission assembly 3 further includes a first driving wheel 34 and a second driving wheel 35, the first driving wheel 34 and the second driving wheel 35 are respectively and fixedly sleeved outside one end of the two sets of bidirectional screws 31, the first driving wheel 34 and the second driving wheel 35 are in transmission connection through a driving belt or a driving chain, and each set of movable cross frames 42 are respectively and simultaneously sleeved on the two bidirectional screws 31 in a threaded manner. In the alternative embodiment, by arranging two bidirectional screws 31 which are arranged at intervals along the second direction and utilizing the cooperation of the first driving wheel 34 and the second driving wheel 35 and the driving belt or the driving chain, the synchronous transmission of power between the two bidirectional screws 31 is realized, and the design avoids the problem of uneven load or vibration possibly generated by a single screw, thereby obviously improving the stability of the transmission process.
Alternatively, each group of hinge levers 43 includes a first hinge lever and a second hinge lever spaced apart in the second direction of the movable carrier 41, respectively. In this alternative embodiment, the design of the double hinge rod can better distribute the load, reduce the stress concentration of a single hinge point, thereby improving the stability and durability of the overall structure, and simultaneously, the load is shared by the two hinge rods 43 together, thereby increasing the load-carrying capacity of the movable carrier 41.
Optionally, a connection groove 421 is provided on the movable transverse frame 42, a rotating shaft 422 is fixed in the connection groove 421, and one end of the hinge rod 43 is inserted into the connection groove 421 and is rotatably sleeved outside the rotating shaft 422. The connection groove 421 is provided on the bottom surface of the movable cross frame 42, and preferably penetrates through two opposite sides of the movable cross frame 42 in the first direction, so as to provide a larger movable space for the hinge rod 43. In this alternative embodiment, one end of the hinge rod 43 is inserted into the connection groove 421 and is rotatably sleeved outside the rotating shaft 422, so that the hinge rod 43 is allowed to freely rotate in the connection groove 421, the hinge rod 43 can flexibly adapt to the changes of different angles, and the layout can further reduce the longitudinal installation space required by the walking bracket 4.
Alternatively, the driving motor 32 is fixedly mounted on a side wall of the supporting leg 21, a mounting hole is formed in the supporting leg 21, and an end portion of the bidirectional screw 31 is rotatably mounted inside the mounting hole. In the alternative embodiment, the driving motor 32 is fixedly arranged on the side wall of the supporting leg 21, the space of the existing structure is fully utilized, additional mounting brackets or supporting pieces are reduced, the whole structure is more compact, the end part of the bidirectional screw 31 is rotatably arranged in the mounting hole by directly arranging the mounting hole on the supporting leg 21, the use of intermediate connecting pieces is reduced, the fault risk caused by loosening or failure of the connecting pieces is reduced, and the stability and the reliability of the system are improved. In addition, the driving motor 32 is fixedly arranged on the side wall of the supporting leg 21, and the mounting hole is arranged on the supporting leg 21 to rotate and mount the end part of the bidirectional screw rod 31, so that the supporting travelling mechanism 2 is of an integral structure integrating the supporting leg 21 and the lifting travelling wheel mechanism 22, and the assembly, disassembly and maintenance are convenient.
In addition, in the practical application process, impurities such as coils are easy to adhere to the travelling wheel 5, damping is formed on the wheel surface of the travelling wheel 5, high efficiency and smoothness in the moving process are affected, the space at the bottom of the box body 1 is narrow, effective cleaning of the travelling wheel 5 is difficult, in this embodiment, the travelling wheel smooth retaining mechanism 6 is further provided, the travelling wheel smooth retaining mechanism 6 comprises a dust box 61, a control panel 611, a suction fan 62 and a suction channel 63, the dust box 61 and the suction fan 62 are both fixed on the side wall of the box body 1, one end of the suction channel 63 is connected with an air inlet 111 of the suction fan 62, the other end of the suction channel 63 extends to the bottom of the box body 1 and forms an air suction opening towards the bottom surface of the box body 1, the air outlet of the suction fan 62 is communicated with the inside of the dust box 61, the control panel 611 is arranged on the surface of the dust box 61, and the control panel 611 is connected with the suction fan 62 for controlling the starting or stopping of the suction fan 62. In this alternative embodiment, the air suction inlet of the air suction channel 63 extends to the bottom of the box body 1 and faces the bottom surface of the box body 1, when the travelling wheel 5 is at the first position (rising), the travelling wheel 5 is closer to the air suction inlet of the air suction channel 63, at this time, the air suction fan 62 can be started to adsorb impurities such as coils adhered on the travelling wheel 5 into the dust box 61, so as to avoid the impurities from forming damping on the wheel surface, thereby ensuring the high efficiency and smoothness of the travelling wheel 5 in the moving process, improving the running efficiency of the equipment, and the dust box 61 is provided with a cleaning opening and a cover plate covering the cleaning opening so as to uniformly clean the impurities in the dust box 61. The embodiment can realize the automatic cleaning function of the travelling wheel 5, reduce the complexity of cleaning the travelling wheel 5, ensure the smoothness of the travelling wheel 5 when rolling, and promote the high-efficiency fluency in the moving process of the power battery box.
In addition, in the prior art, most power battery boxes adopt an integral type mounting structure that a battery module is fixed in a box body 1, the battery module and a battery cell 10 cannot be independently extracted or replaced, when a certain battery module or the battery cell 10 breaks down or needs maintenance, the power supply of the whole battery box is often required to be cut off, shutdown maintenance is carried out, and service interruption risks can be caused for key facilities such as medical equipment, data centers and the like with high uninterrupted power supply requirements.
In this regard, referring to fig. 4 to 6, in an alternative implementation of the present embodiment, a battery pack insulating and isolating frame 7 is fixedly mounted inside the case 1, the battery pack insulating and isolating frame 7 is provided with a plurality of battery compartments 70 and a plurality of sets of limiting structures 72 corresponding to the battery compartments 70 one by one, the compartment openings of the battery compartments 70 are all directed to the same side wall of the case 1, contact-type connection terminals 71 are fixedly mounted on the inner walls of the battery compartments 70, and the limiting structures 72 are used for fixing the battery cells 10 to the corresponding battery compartments 70 when the battery cells 10 are fixed in the battery compartments 70 so that the contact-type connection terminals 71 are kept in contact with electrode terminals of the battery cells 10. The battery pack controller 8 is arranged on the outer side wall of the box body 1, contact type connecting terminals 71 in the battery bins 70 are all in circuit connection with the battery pack controller 8, the battery pack controller 8 can control the circuit connection relation (series connection or parallel connection) among the battery bins 70, the battery pack controller 8 is fixedly connected with the charging and discharging plugs 81, a battery management system is arranged in the battery pack controller 8 and is responsible for monitoring and managing the charging and discharging process of the battery module formed by connecting the battery cells 10, the charging and discharging operation of the battery cells 10 in the box body 1 is realized through the charging and discharging plugs 81, and the safe and efficient operation of the battery module is ensured.
In this alternative embodiment, the battery cells 10 may be inserted into each battery compartment 70, and each of the inserted battery cells 10 may be connected to form a battery module, so that the positions of the battery cells 10 may be adjusted according to actual needs to adjust the power distribution mode and the energy storage condition, and when a fault occurs, the corresponding battery cells 10 may be taken out separately to repair or replace, thereby facilitating equipment maintenance.
With continued reference to fig. 4 to 6, in some alternative implementations of the present embodiment, the above-mentioned limiting structure 72 specifically includes a limiting housing 721 and a locking plate 722, where the front side of the case 1 is the bin opening of the battery compartment 70, the limiting housing 721 is disposed on the front side of the battery pack insulating isolation frame 7 at a position corresponding to the bin opening of each battery compartment 70, the limiting housing 721 is a U-shaped member protruding toward the front side of the case 1 and penetrating up and down, and a guide hole 7210 extending in the vertical direction is formed in the front side wall of the limiting housing 721. The locking plate 722 is vertically inserted into the limiting shell 721, the lifting handle 7221 is fixed on the front side of the locking plate 722, the lifting handle 7221 penetrates through the guide hole 7210, in a free state, the locking plate 722 downwards extends out of the limiting shell 721 to block the front side of the bin opening of the corresponding battery bin 70, the lifting handle 7221 is driven to slide upwards along the guide hole 7210, and the lifting handle 7221 can slide upwards relative to the limiting shell 721 with the locking plate 722 so as to open the bin opening of the corresponding battery bin 70. In this alternative embodiment, the driving handle 7221 slides upwards along the guiding hole, and the locking plate 722 slides upwards relative to the limiting shell 721 to open the bin opening of the corresponding battery bin 70, so that the battery cell 10 is plugged into the corresponding battery bin 70, and the handle 7221 is released to enable the locking plate 722 to extend downwards under the action of dead weight to protrude downwards to the front side of the bin opening of the corresponding battery bin 70 (or the driving handle 7221 is reset), at this time, the locking plate 722 is attached to the front side surface of the battery cell 10, so that the battery cell 10 is locked in the corresponding battery bin 70 and a certain pressing force is provided for the battery cell 10, and the contact type connecting terminal 71 in the battery bin 70 is ensured to be kept in contact with the electrode terminal of the battery cell 10. In particular, for ease of handling, in this alternative embodiment, the handle 7221 is preferably a T-handle with an end rail retained on the front side of the stop housing 721.
With continued reference to fig. 4 to 6, in some alternative implementations of the present embodiment, with the bin openings of the battery bins 70 facing the front side of the box 1, the box 1 includes a box door 9 covering the bin openings of the plurality of battery bins 70, a plugging track 101 is fixedly mounted on the peripheral wall of the box 1, a plugging opening 1010 is provided at the top end of the plugging track 101, the box door 9 is plugged into the plugging track 101 from the plugging opening 1010, and a box door handle 91 is provided at the top or outside of the box door 9. After each battery cell 10 is inserted into the corresponding battery compartment 70, the door handle 91 slides the door 9 downwards along the insertion track 101, so that the door 9 seals the front end surface opening of the box body 1 of the power battery box, and further seals the compartment opening of each battery compartment 70 to protect the battery cell 10 arranged in the box body 1, and when the position of the battery cell 10 needs to be adjusted or the battery cell 10 needs to be disassembled, the door 9 is opened upwards along the insertion track 101 by the door handle 91 to perform related operations. In this alternative embodiment, the front end surface opening of the case 1 is closed by the case door 9, so that external dust, moisture and other impurities can be effectively prevented from entering the battery compartment 70, and the battery cell 10 is protected from environmental factors. Meanwhile, when the vertical sliding type box door 9 is opened and closed, the vertical sliding type box door moves along the vertical direction and does not extend to two sides or the front, the whole box body 1 is more compact due to the design, and the vertical sliding type box door is suitable for being installed in a cabinet or other narrow spaces. Further, a high-voltage warning board 92 can be fixed on the front surface of the box door 9 to remind the staff of safety.
Referring to fig. 1 to 9, with emphasis on fig. 7, 8 and 9, in an alternative implementation of the present embodiment, the bin openings of the battery bins 70 are oriented to the front side of the case 1, the rear side wall of each battery bin 70 is provided with a vent, and the power battery case further includes a heat dissipation rear cover 11 fixedly mounted to the rear side wall of the case 1 and communicating with each vent.
In an alternative implementation manner of the embodiment, a plurality of air inlets 111 are formed in the left side wall and the right side wall of the heat dissipation back cover 11, a heat dissipation fan 12 is fixedly installed on the bottom wall of the heat dissipation back cover 11, a temperature sensor 13 is installed on the inner side wall of the top of the heat dissipation back cover 11, an execution controller 14 is installed on the outer side wall of the heat dissipation back cover 11, the temperature sensor 13 and the heat dissipation fan 12 are connected with the execution controller 14, and the execution controller 14 can receive temperature information transmitted by the temperature sensor 13 and turn on or off the heat dissipation fan 12 according to the temperature information. The number of the heat dissipation fans 12 is not particularly limited, and two or more heat dissipation fans 12 are preferably designed such that the gas outflow ends of the heat dissipation fans 12 face the outside of the heat dissipation rear cover 11 to carry out hot air in the heat dissipation rear cover 11 by the heat dissipation fans 12. The number of the air inlets 111 provided on the left and right side walls of the heat dissipation rear cover 11 is not particularly limited, and preferably, a plurality of air inlets 111 are arranged in a matrix in the vertical direction on the left and right side walls of the heat dissipation rear cover 11.
In this alternative embodiment, the temperature sensor 13 continuously monitors the internal temperature of the casing 1 of the power battery box, converts the temperature signal into an electrical signal, the temperature sensor 13 transmits the electrical signal to a signal conditioning circuit of a Battery Management System (BMS) in the execution controller 14, and converts the electrical signal into a signal suitable for processing by a microcontroller after being amplified, filtered and the like, the microcontroller in the execution controller 14 compares the read temperature value with a preset temperature threshold, if the temperature value exceeds a set value, the microcontroller triggers a heat dissipation control logic, the microcontroller generates a control instruction according to the temperature judgment result, the control signal line sends the instruction to a driving circuit of the heat dissipation fan 12, the driving circuit activates a power supply circuit of the heat dissipation fan 12 after receiving the control instruction, so that the heat dissipation fan 12 starts to work, and external air is further led out from the bottom wall of the heat dissipation rear cover 11 by the heat dissipation fan 12, and the heat dissipation of the battery cell 10 in the casing 1 is realized through the flow of air. The bottom wall of the heat dissipation back cover 11 may be made of a mesh plate 121 provided with heat dissipation meshes to further increase the gas flow rate and thus the heat dissipation capacity.
Finally, it should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in terms of differences from other embodiments, and identical and similar parts of each embodiment are mutually referred to, so that the above embodiments in the present specification are only used for illustrating the technical solutions of the present invention, but not limiting the same, and although the present invention is described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.