CN218887366U

CN218887366U - Battery box

Info

Publication number: CN218887366U
Application number: CN202222421566.4U
Authority: CN
Inventors: 王文博; 苏继军; 倪建生; 王忠连; 丛秀凤; 宋兆春
Original assignee: Dalian CIMC Logistics Equipment Co Ltd
Current assignee: Dalian CIMC Logistics Equipment Co Ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-04-18
Anticipated expiration: 2032-09-13

Abstract

The application discloses battery box. The battery box comprises a box body and an upper cover; the box body comprises a base plate, an end wall and a side wall; the upper cover comprises a top cover and a front cover; the one end of keeping away from the protecgulum of top cap rotationally is connected to the lateral wall, and the protecgulum can move for the top cap to make last uncap can move between closed position and open position, goes up uncap and is located under the condition of closed position, and the top cap lid closes the top to the box, and the protecgulum lid closes the one end of keeping away from the lateral wall to the box, goes up uncap and is located under the condition of open position, and the box is left to the one end of keeping away from the lateral wall of protecgulum and top cap. From this, the box is provided with upper shed and side opening, and the upper cover is including being used for covering the open-ended top cap and being used for covering the open-ended protecgulum, and the upper shed is located under the condition of open position, opens upper shed and side opening to conveniently load and unload large-scale battery to the box in.

Description

Battery box

Technical Field

The application relates to the field of containers, in particular to a battery box.

Background

With the rapid development of new energy automobiles, the use amount of storage batteries is greatly increased. Various battery cases for transporting storage batteries have been developed. Because the storage battery mainly comprising the lithium battery belongs to dangerous goods. During the transportation of the battery, there may occur a leakage of the battery, a rupture of the outer case of the battery, a fire of the battery, an explosion of the battery, and the like. The risk is higher when transporting damaged or defective batteries and used batteries through the battery box.

As lithium batteries used by new energy vehicles and the like are large batteries, the batteries need to be loaded and unloaded by a forklift during packaging and transportation. The single side of the battery box of the prior battery transportation box is open, so that the large-sized battery is not convenient to assemble and disassemble.

To this end, the present application provides a battery box to at least partially solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The summary of the present application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to at least partially solve the above technical problem, the present application provides a battery box, including:

the box, the box includes:

a chassis;

an end wall, a lower end of which is connected to an end of the chassis in the first horizontal direction;

a side wall having a lower end connected to one end of the chassis in a second horizontal direction perpendicular to the first horizontal direction;

go up the uncap, go up the uncap and include:

a top cover;

one end of the front cover is connected to one end of the top cover;

the one end of keeping away from the protecgulum of top cap rotationally is connected to the lateral wall, and the protecgulum can move for the top cap to make last uncap can move between closed position and open position, goes up uncap and is located under the condition of closed position, and the top cap lid closes the top to the box, and the protecgulum lid closes the one end of keeping away from the lateral wall to the box, goes up uncap and is located under the condition of open position, and the box is left to the one end of keeping away from the lateral wall of protecgulum and top cap.

According to the battery box of this application, the box is provided with upper shed and side opening, and upward uncap is located under the condition of open position including being used for covering open-ended top cap and being used for the open-ended protecgulum that closes, upward uncaps, opens upper shed and side opening to the large-scale battery of convenient loading and unloading in to the box.

Optionally, the battery box includes a front cover connection assembly, the front cover connection assembly includes a first connection plate, a second connection plate, and a front cover connection assembly shaft, the first connection plate is fixedly connected to a front cover upper beam of the front cover, the second connection plate is fixedly connected to a top side beam of the top cover away from the side wall, one of the first connection plate and the second connection plate has a connection slot, the other is connected to the front cover connection assembly shaft, the front cover connection assembly shaft is penetrated in the connection slot and can move along a long axis direction of the connection slot, so that the front cover can move between a cover closing position and a leaving position, and the front cover is located in the cover closing position when the upper cover is located in the closing position.

Optionally, the plane of the front cover is vertical to the plane of the top cover, the front cover can move between the covering position and the leaving position along the width direction of the top cover,

the battery box further comprises a limiting pin, the other of the first connecting plate and the second connecting plate is provided with a limiting hole, and the limiting pin penetrates through the limiting hole to fix the front cover at the departing position under the condition that the front cover is located at the departing position.

Optionally, a plane of the front cover located at the closing position is perpendicular to a plane of the top cover, and in the case that the upper cover is located at the opening position, a plane of the front cover located at the leaving position is perpendicular to the second horizontal direction.

Optionally, the end of the second connecting plate, which is far from the center of the top cover in the width direction of the top cover, has an inclined surface, and when the upper cover is located at the open position, the inclined surface is parallel to the second horizontal direction, and the bottom wall of the first connecting plate abuts against the inclined surface, so that the plane where the front cover is located is perpendicular to the second horizontal direction.

Alternatively, in the case where the upper cover is located at the open position, the front cover located at the spaced position is located on the side of the center of the chassis near the side wall in the second horizontal direction.

Optionally, the front cover can also be moved to an intermediate position between the open position and the closed position, the plane of the front cover in the intermediate position being perpendicular to the plane of the top cover,

the first connecting plate is provided with a first shaft hole and a second shaft hole which are arranged at intervals along the thickness direction of the front cover, the front cover connecting assembly shaft comprises a first assembly shaft and a second assembly shaft,

the second component shaft is separated from the connecting long hole, the first component shaft is movably arranged in the first shaft hole in a penetrating way and can move along the width direction of the top cover between the covering position and the middle position under the condition of penetrating the connecting long hole,

the first component shaft is separated from the connecting long hole, the second component shaft is movably arranged in the second shaft hole in a penetrating mode, and under the condition that the second component shaft is arranged in the connecting long hole in a penetrating mode, the front cover can move between the middle position and the separated position.

Optionally, when the front cover is located at the middle position, the second assembly shaft penetrates through the second shaft hole to fix the front cover.

Optionally, the battery box further comprises a top cover sealing strip located inside the top cover and connected to the top cover, the top cover sealing strip abutting against the end upper beam of the end wall and the side upper beam of the side wall in case the top cover is closed to the top end of the box body.

Optionally, the battery box further comprises a front cover sealing strip located inside the box of the front cover and connected to the front cover, the front cover sealing strip abutting against the top side beam of the top cover remote from the side wall, the bottom side beam of the bottom tray remote from the side wall and the upright post connected to the end of the end wall remote from the side wall in case the upper cover is in the closed position.

Optionally, the top cover further comprises a top cover sealing beam, the top cover sealing beam is positioned on the inner side of the top cover outer frame of the top cover and connected to the top cover outer frame, the top cover sealing beam is provided with a top cover sealing groove with an opening facing to the inner side of the top cover, the top cover sealing strip is arranged in the top cover sealing groove,

the protecgulum still includes protecgulum sealing beam, and protecgulum sealing beam is located the incasement side of the protecgulum frame of protecgulum to be connected to the protecgulum frame, and protecgulum sealing beam has the protecgulum seal groove of the incasement side of opening towards the protecgulum, and the protecgulum sealing strip sets up in the protecgulum seal groove.

Optionally, the side upper beam top surface of the side upper beam of the side wall and the end upper beam top surface of the end upper beam of the end wall are flush and connected.

Optionally, the front cover further comprises an upper stopper connected to a top surface of the front cover upper beam of the front cover and extending to protrude an inner surface of the case of the front cover upper beam, and a lower stopper connected to a bottom surface of the front cover lower beam of the front cover and extending to protrude an inner surface of the case of the front cover lower beam, the upper cover being in the closed position, a portion of the upper stopper being located above the top side beam of the top cover away from the side wall to block the top side beam from bulging outward, and a portion of the lower stopper being located below the bottom side beam of the chassis away from the side wall to block the bottom side beam from bulging outward.

Optionally, the battery box further comprises a gas spring, a lower end of the gas spring is hinged to the end wall or the side wall, an upper end of the gas spring is hinged to the top cover, and the gas spring supports the upper cover in the case that the upper cover is located at the open position.

Optionally, the box further comprises a column and a latch rod, the column is located at a corner of the box, the end wall and the side wall are connected through the column, the latch rod movably penetrates through an upper end of the column connected with the side wall along a first horizontal direction, and the latch rod can extend out of the column towards the center of the box along the first horizontal direction so as to be located below the top cover under the condition that the upper cover is located at the open position.

Optionally, the battery box further includes a support plate and a sliding shaft, the support plate has an extension plate slot hole and a limit end hole, the long axis of which extends along the length direction of the support plate, the limit end hole is located on the side of the extension plate slot hole and communicates with the extension plate slot hole, one end of the support plate is pivotally connected to the top cover, the sliding shaft is connected to the end wall and penetrates through the support plate, the upper cover is located in the open position, and the sliding shaft can be located in the limit end hole so that the support plate supports the upper cover located in the open position.

Optionally, the chassis further comprises a bottom plate, a bottom end beam, a bottom side beam and a bottom center beam, the bottom center beam is connected to the inner side of the bottom side beam and the inner side of the bottom end beam, the bottom plate is lapped to the bottom center beam, and the bottom plate is located below the top surface of the bottom side beam away from the side wall to constitute the sump.

Optionally, the battery box further comprises a liquid leakage net and a support beam, wherein the top surface of the liquid leakage net is flush with the top surface of the bottom side beam, and the support beam is positioned between the bottom plate and the liquid leakage net to support the liquid leakage net.

Optionally, the chassis further comprises a binding connected to the bottom end beam and the bottom side beam.

Optionally, the battery box further comprises a fire extinguisher attached to the end wall or side wall and located within the box body.

Optionally, the battery box further comprises a safety valve connected to one or more of the end wall, the side wall, the top cover and the front cover.

Optionally, the upper lid is provided with a lid handle.

Optionally, the battery box further comprises a tensioning assembly,

a tensioning assembly is connected to the end upper beam of the end wall and to the top end beam of the top cover, the tensioning assembly being used to tension the top cover to the end wall in the closed position of the upper lid, or

A tensioning assembly is connected to the roof side rail of the roof remote from the side walls and to the front cover upper rail of the front cover for tensioning the front cover to the roof in the closed position of the upper cover, or

The tensioning assembly is connected to a lower front cover rail of the front cover and to the bottom side rail remote from the side walls, the tensioning assembly being for tensioning the front cover to the chassis with the upper cover in the closed position.

Drawings

In order that the advantages of the application will be readily understood, a more particular description of the application briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the application and are not therefore to be considered to be limiting of its scope, the application will be described and explained with additional specificity and detail through the use of the accompanying drawings.

Fig. 1 is a perspective view showing one direction of a battery case according to a first preferred embodiment of the present application, in which an upper door is located at a closed position;

fig. 2 is a partially enlarged schematic view of the battery box of fig. 1 at a;

fig. 3 is a partially enlarged schematic view of the battery case of fig. 1 at B;

fig. 4 is a partially enlarged view of the battery case of fig. 1 at C;

FIG. 5 is a schematic perspective view of the battery compartment of FIG. 1 in another orientation with the upper door in a closed position;

fig. 6 is a partially enlarged schematic view of the battery box of fig. 5 at D;

fig. 7 is a partially enlarged schematic view of the battery case of fig. 5 at E;

FIG. 8 is a schematic perspective view of the battery compartment of FIG. 1 in another orientation with the upper door in an open position;

fig. 9 is a partially enlarged schematic view of the battery case of fig. 8 at F;

fig. 10 is a partially enlarged schematic view of the battery case of fig. 8 at G;

fig. 11 is a partially enlarged schematic view of the battery box of fig. 8 at H;

FIG. 12 is a schematic perspective view of the battery box of FIG. 1 in another orientation with the upper door in an open position and without the weep net and the support beams;

FIG. 13 is a schematic perspective view of the battery compartment of FIG. 1 in another orientation with the upper lid in the closed position and the front lid not shown;

fig. 14 is an enlarged partial schematic view at I of the battery box of fig. 13;

FIG. 15 is a perspective view of a front cover of the battery box of FIG. 1;

fig. 16 is a partially enlarged view at J of a front cover of the battery case of fig. 15;

fig. 17 is a perspective view showing one direction of a battery box according to a second preferred embodiment of the present application, in which an upper cover is located at a closed position;

FIG. 18 is an enlarged fragmentary view at the swing bolt assembly of a perspective view in another orientation of the battery case of FIG. 17;

FIG. 19 is a partial perspective view of the battery compartment of FIG. 17 in another orientation with the upper door in an open position;

FIG. 20 is a partial perspective view of the battery box of FIG. 17 in another orientation with the upper door in an open position;

fig. 21 is a partially enlarged schematic view at K of the battery case of fig. 20;

fig. 22 is a partially enlarged schematic view at the front cover coupling assembly of a perspective view in one direction of a battery case according to a third preferred embodiment of the present application, in which an upper cover is located at a closed position;

fig. 23 is an enlarged partial view of the front cover attachment assembly of the battery box of fig. 22 in another perspective view, wherein the top cover covers the top opening, the front cover attachment assembly axis is located at one end of the attachment slot away from the center of the top cover, and the plane of the front cover is perpendicular to the plane of the top cover;

FIG. 24 is a schematic perspective view of the battery compartment of FIG. 22 in another orientation with the upper door in an open position;

fig. 25 is an enlarged partial schematic view at L of the battery case of fig. 24;

fig. 26 is a partially enlarged schematic view at the front cover connection assembly of a perspective view of one direction of the battery box according to the fourth preferred embodiment of the present application, in which the upper cover is located at the closed position;

fig. 27 is an enlarged partial view of the front cover attachment assembly of the battery box of fig. 26 in another perspective view with the top cover covering the top opening and the front cover in an intermediate position;

fig. 28 is an enlarged partial view of the front cover attachment assembly at another orientation of the battery box of fig. 26 with the top cover covering the top opening and the front cover in a disengaged position;

fig. 29 is a perspective view of the battery box of fig. 26 in another orientation with the upper door in an open position; and

fig. 30 is a partially enlarged view of the battery case of fig. 29 at M.

Description of the reference numerals

110: the chassis 111: bottom side beam

112: bottom plate 113: liquid collecting tank

114: the liquid leakage net 116: binding part

117: leg 118: fork groove

119: bottom side sill box facade 120: end wall

121: end upper beam 122: end wall shroud plate

123: end upper beam top surface 130: side wall

131: side upper beam 132: side wall shroud plate

133: side upper beam top face 140: upper cover

150: the top cover 151: roof side beam

152: the tip beam 153: top cover shroud plate

154: roof seal beam 155: top cover sealing strip

156: seal strip end face 157: cover handle

158: top side sill box facade 160: front cover

161: front cover upper beam 162: front cover lower beam

163: front cover end beam 164: front cover covering plate

165: front cover seal beam 166: front cover sealing strip

167: an upper stopper 168: lower stopper

170: column 171: upright post box outer vertical surface

172: pillar upper end surface 173: stacking column

174: stacking groove 175: bottom surface of stacking groove

176: stacking baffle 177: operation hole

178: the latch hole 210: top cover hinge

211: top cover hinge axis 212: first hinge base

213: second hinge base 220: front cover connecting assembly

221: first connection plate 222: connection slot hole

223: second connecting plate 224: front cover connecting assembly shaft

225: the limiting hole 226: limit pin

227: the limit pin fixing seat 228: chain

229: elastic cotter pin 230: lock set

231: locking bar 232: lock head

233: the lock base 234: handle (CN)

235: bracket 236: lock box

240: the tensioning assembly 241: pulling buckle base

242: tab 243: hanging piece

244: tab handle 245: hanging groove

250: the plug pin assembly 251: bolt seat

252: latch lever 253: pull ring

254: pin boss groove 260: gas spring

270: the fire extinguisher 271: protective fence

280: the safety valve 310: chassis

320: end wall 330: side wall

340: the upper cover 350: top cover

360: the front cover 370: upright post

440: swing bolt assembly 441: bolt seat

442: the bolt rod 443: swing bolt shaft

444: wing nut 445: pressing plate

450: the support assembly 451: supporting plate

452: the support shaft 453: support plate long hole

454: limiting end hole 455: sliding shaft

460: gas spring 461, bottom center sill

510: the bottom plate 520: front cover connecting assembly

521: first connecting plate 522: connection slot hole

523: second connecting plate 524: front cover connecting assembly shaft

527: shaft hole 528: inclined plane

529: elastic cotter pin 530: side wall

540: upper cover 550: top cover

560: front cover 561: the front cover is provided with a beam;

620: front cover connection assembly 621: first connecting plate

622: the connection long holes 623: second connecting plate

627: fixing holes 628: inclined plane

629: resilient cotter pin 630: side wall

640: an upper cover 650: top cover

660: front cover 691: first shaft hole

692: second shaft hole 693: first assembly shaft

694: second assembly shaft

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present application. It will be apparent, however, to one skilled in the art, that the embodiments of the present application may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the embodiments of the present application.

Preferred embodiments of the present application will be described below with reference to the accompanying drawings. It is to be understood that the terms "upper", "lower", and the like are used herein for purposes of illustration only and are not to be construed as limiting.

Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, e.g., a particular order, etc.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present application. It is apparent that the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the present application, however, may have other embodiments in addition to those detailed.

First embodiment

The application provides a battery box. The battery box includes a box body and an upper cover 140. The upper cover 140 has an open position and a closed position. Under the condition that the upper cover is positioned at the opening position, the upper opening and the side opening of the box body are opened, and batteries can be conveniently loaded and unloaded into the box body.

Referring to fig. 1 to 21, the battery box includes a box body. The box includes a bottom plate 110, two end walls 120, a side wall 130, four posts 170 and an upper cover 140. In the first horizontal direction D1, one end wall 120 is located at one end of the bottom chassis 110, and the other end wall 120 is located at the other end of the bottom chassis 110. The lower end of the end wall 120 is connected to the chassis 110. The end of end wall 120 is connected to pillar 170 in a second horizontal direction D2 perpendicular to first horizontal direction D1. Four uprights 170 are positioned at the four corners of the chassis 110. The extending direction of the pillar 170 is parallel to the height direction D3 of the base plate 110. The lower end of upright 170 is connected to chassis 110. The plane of the end wall 120 is perpendicular to the plane of the base pan 110. The sidewall 130 is located at one end of the bottom chassis 110 in the second horizontal direction D2. The lower end of the sidewall 130 is connected to the bottom chassis 110. The end of the sidewall 130 is connected to the pillar 170 along the first horizontal direction D1. The plane of the sidewalls 130 is perpendicular to the plane of the base plate 110. The upper cover 140 includes a top cover 150 and a front cover 160. The upper end of the side wall 130 has a side upper beam 131. The upper end of the end wall 120 has an end upper beam 121. The end of the chassis 110 in the second horizontal direction D2 has a bottom side member 111. The plane of the front cover 160 is perpendicular to the plane of the top cover 150.

As shown in fig. 1, 2, 5, 6, and 8, the front cover 160 includes a front cover upper beam 161. The front cover upper rail 161 is located at one end of the front cover 160 in the width direction of the front cover 160. The top cover 150 includes a top side beam 151. Both ends of the top cover 150 are provided with top side beams 151 in the width direction of the top cover 150.

The battery box further includes a front cover connection assembly 220 and a top cover hinge 210. The front cover upper rail 161 and one of the roof side rails 151 are connected by a front cover connecting assembly 220. Thus, the front cover 160 and the top cover 150 constitute the upper cover 140. The other roof rail 151 of the roof 150 is pivotally connected to the side upper rail 131 by a plurality of roof hinges 210. Thus, the upper cover 140 can be moved between the closed position and the open position.

With the upper lid 140 in the open position, the top side beams 151 of the top lid 150 away from the side walls 130, and the front lid 160, are clear of the box. At this time, the forklift is convenient to load or unload the large battery into or from the battery box.

As shown in fig. 8, 13 and 14, the side upper beams 131 and the end upper beam 121 constitute an upper opening of the box body. With the upper lid 140 in the closed position, the top lid 150 closes the upper opening. In the case where the top cover 150 is positioned to cover the upper opening, the top side frame 151 distant from the side wall 130, the two pillars 170 distant from the side wall 130, and the bottom side frame 111 of the chassis 110 distant from the side wall 130 constitute a side opening of the box body. When the upper cover 140 is in the closed position, the front cover 160 is located on the other side of the chassis 110 away from the side wall 130, and the front cover 160 is located at the later closed position to cover the side opening.

In the case where the upper cover 140 is located at the closed position, the width direction of the top cover 150 is parallel to the second horizontal direction D2, the width direction of the front cover 160 is parallel to the height direction D3 of the chassis 110, and the width direction of the top cover 150 is parallel to the thickness direction of the front cover 160.

In this embodiment, the box body is provided with an upper opening and a side opening, the upper cover 140 includes a top cover 150 for covering the upper opening and a front cover 160 for covering the side opening, and the upper opening and the side opening are opened when the upper cover 140 is located at the open position, so as to facilitate loading and unloading of large batteries into and from the box body.

As shown in fig. 2, 10, 15 and 16, the front cover link assembly 220 includes a first link plate 221, a second link plate 223 and a front cover link assembly shaft 224. The first connection plate 221 is fixedly connected to the top surface of the front cover upper beam 161 (the surface of the front cover upper beam 161 away from the rear cover lower beam 162). The second connecting plate 223 is fixedly connected to the top surface of the side roof rail 151 (the surface of the side roof rail 151 remote from the chassis 110).

The first connection plate 221 is a first U-shaped plate. With the upper cover 140 in the closed position, the opening of the first U-shaped plate is facing upward. The first U-shaped plate includes a bottom wall and a standing wall. The bottom wall of the first connection plate 221 is connected to the top surface of the front cover upper beam 161. Portions of both standing walls of the first connection plate 221 extend toward the center of the top cover 150 in the width direction of the top cover 150 to protrude from the case inner face of the front cover 160. The front cover connection assembly shaft 224 is inserted through and connected to the two vertical walls of the first connection plate 221. The axial direction of the front cover coupling assembly shaft 224 is parallel to the first horizontal direction D1. Both of the vertical walls of the first connection plate 221 are provided with a stopper hole 225. The stopper hole 225 is located on one side of the front cover connection assembly shaft 224 near the center of the top cover 150 in the width direction of the top cover 150.

As shown in fig. 14, the second connection plate 223 is a second U-shaped plate. With the upper cover 140 in the closed position, the opening of the second U-shaped plate faces downward. The second U-shaped plate includes a bottom wall and a standing wall. Two upright walls of the second connecting plate 223 are connected to the top surfaces of the top side beams 151. In the width direction of the top cover 150, a portion of the second connection plate 223 extends to protrude out of the top cover 150 toward a direction away from the center of the top cover 150. The portion of the upright wall of the second connecting plate 223 protruding from the top cover 150 has a notch. The second connecting plate 223 has connecting long holes 222 on both vertical walls. The long axis of the coupling long hole 222 is parallel to the width direction of the top cover 150. In a state where the first connection plate 221 and the second connection plate 223 are assembled together, two vertical walls of the second connection plate 223 are located between the two vertical walls of the first connection plate 221, and the front cover attachment assembly shaft 224 is inserted through the attachment long hole 222. Thus, the front cover link assembly shaft 224 can move in the direction of extension of the long axis of the link slot 222. As such, the front cover 160 is movable between a closed position proximate the side walls 130 and an open position distal from the side walls 130. When the front cover 160 is located at the closed position, the front cover 160 abuts against the top cover 150, and a plane of the front cover 160 is perpendicular to the second horizontal direction D2. When the front cover 160 is in the closed position, the bottom wall of the first connecting plate 221 is located in the gap between the two vertical walls of the second connecting plate 223 to prevent the first connecting plate 221 and the second connecting plate 223 from interfering with each other. At this time, the front cover link assembly shaft 224 is located at one end of the link long hole 222 near the center of the top cover 150.

In the case where the front cover 160 is located at the spaced-apart position in the width direction of the top cover 150, the front cover link assembly shaft 224 is located at one end of the link long hole 222 away from the center of the top cover 150. The front cover 160 is now clear of the top cover 150 and the bin.

It will be appreciated that in embodiments not shown, the first connecting plate may also be a U-shaped plate opening towards the roof and the second connecting plate may also be a U-shaped plate opening away from the roof. Or the first connecting plate and the second connecting plate are both U-shaped plates with openings facing the top cover or both U-shaped plates with openings deviating from the top cover.

In an embodiment not shown, the two standing walls of the first connecting plate can also be located between the two standing walls of the second connecting plate.

In an embodiment not shown, the front cover link assembly shaft may also be connected to the second link plate, and the link long hole is provided to the first link plate.

The front cover attachment assembly 220 also includes a restraint pin 226. With the front cover 160 in the spaced-apart position, the stopper hole 225 of the first connecting plate 221 is located at one end of the long connecting hole 222 near the side wall 130. At this time, the front cover 160 can be fixed at the separated position by inserting the stopper pin 226 into the stopper hole 225 and the coupling long hole 222. Thus, the front cover link assembly shaft 224 cannot move in the link long hole 222, so that the front cover 160 cannot move relative to the top cover 150. The front cover 160 cannot rotate relative to the top cover 150 about the front cover connection assembly shaft 224. Thus, the upper cover 140 can be moved to the open position with the front cover 160 in the separated position. That is, in the case where the upper cover 140 is located at the open position, the front cover 160 is located at the spaced position. Thus, the front cover 160 does not interfere with the pillar 170 during the movement of the upper cover 140 to the open position.

A stopper pin fixing seat 227 is provided on the top surface of the top side member 151 away from the side wall 130. The limit pin fixing seat 227 is provided with a fixing hole. The top cover also includes a chain 228 and a resilient cotter pin 229. The chain 228 is fixed to the stopper pin holder 227 or the top side member 151. The first end of the restraint pin 226 has a transverse aperture. The end of the restraint pin 226 distal from the transverse aperture is connected to a chain 228. The resilient cotter pins 229 are connected to the chain 228.

After the stopper pin 226 is inserted into the stopper hole 225, the elastic opening pin 229 is inserted into the transverse hole to prevent the stopper pin 226 from leaving the first connecting plate 221. The stopper pin 226 is drawn out of the stopper hole 225 and then inserted into a fixing hole of the stopper pin fixing base 227. At this time, the elastic opening pin 229 may be inserted into the transverse small hole of the stopper pin 226 to prevent the stopper pin 226 from leaving the stopper pin fixing seat 227. Thus, the stopper pin 226 can be prevented from being lost, and the use of the stopper pin 226 is facilitated.

It is understood that, in an embodiment not shown, the first connecting plate and the second connecting plate may be provided with separate stopper holes instead of fixing the front cover located at the spaced-apart position using the connecting long holes.

In an embodiment not shown, the limit pin holders may be eliminated. At this time, the second connecting plate is extended in the width direction of the top cover in the direction of the center of the top cover so as to be protruded toward the center of the top cover in the width direction of the top cover with the front cover in the closed position. Thus, a fixing hole may be provided at a portion of the second connecting plate protruding out of the first connecting plate near the center of the top cover. The limit pin is inserted into the fixing hole to avoid loss.

In an embodiment not shown, the limit pin may also take other forms of construction, as long as it is capable of securing the bezel in the off position and of placing the limit pin.

As shown in fig. 8-11, the top cover 150 also includes a top end beam 152. The top end beam 152 is located at an end of the top cover 150 in the first horizontal direction D1. The two top side beams 151 and the two top end beams 152 constitute a top cover outer frame. The top cover 150 further includes a top cover plate 153, top cover seal beams 154, and top cover seal strips 155. The top cover sheathing plate 153 is laid on the top surface of the top cover outer frame (the surface of the top cover outer frame away from the bottom chassis 110) and continuously welded or continuously bonded to the top cover outer frame, so that the top cover sheathing plate 153 and the top cover outer frame are hermetically connected. The welding connection between the two top side beams 151 and the two top end beams 152 of the roof outer frame is also a continuous welding to hermetically connect the top side beams 151 and the top end beams 152.

The bottom surfaces of the top side beams 151 near the chassis 110 are flush with the bottom surfaces of the top end beams 152 near the chassis 110. The top cap sealing beams 154 are three. A first roof seal beam 154 is attached and welded to the inside box face of one of the roof beams 152. A second roof seal beam 154 is attached and welded to the tank inside face of the other roof beam 152. A third roof seal beam 154 is attached and welded to the inside of the tank of the roof side rail 151 remote from the front cover 160. Thus, the top cover sealing beams 154 are located inside the box of the top cover outer frame. The three roof sealing beams 154 are welded together. The top cap sealing beam 154 is a first U-shaped structure. Thus, the first U-shaped structure has a top cap seal groove. With the upper lid 140 in the closed position, the opening of the lid seal groove faces downward. The end surface of the top cover sealing beam 154 adjacent the bottom plate 110 is substantially flush with the bottom surface of the top cover outer frame adjacent the bottom plate 110.

The cross-section of the top cover sealing strip 155 is a rectangular structure. The top cap seal strip 155 is disposed within the top cap seal groove of the top cap seal beam 154. The three top cover beads 155 in the three top cover sealing beams 154 are connected such that the top cover beads 155 are a continuous, unitary piece. After the top cover sealing strip 155 is disposed in the top cover sealing groove, a sealing surface of the top cover sealing strip 155, which is away from the top cover plate 153, protrudes a predetermined distance from a bottom surface of the top cover outer frame, which is close to the bottom plate 110. The top side rail box facades 158 of the top side rails 151 near the front cover 160 are flush with the end faces of the top side rails 152. Notches are provided in the lower portions of both ends of the top side member 151. From which the top cap seal 155 extends. The seal strip end face 156 of the top cover seal strip 155 projects a predetermined distance beyond the top side beam box facade 158. The joining weld herein is a circumferentially closed annular structure of the weld.

As shown in fig. 1, 3, 5 and 6, the roof side rail 151 and the side upper rail 131, which are distant from the front cover 160, are rotatably connected by a plurality of roof hinges 210. Each top cover hinge 210 includes a top cover hinge shaft 211, a first hinge base 212, and a second hinge base 213. The first hinge base 212 and the second hinge base 213 have hinge holes formed thereon. The first hinge mount 212 is fixedly connected to a side upper beam box facade of the side upper beam 131 remote from the centre of the chassis 110. The second hinge mount 213 is fixedly connected to a top side sill 151 box facade away from the center of the chassis 110. The top cover hinge shaft 211 is inserted through the hinge holes of the first hinge base 212 and the second hinge base 213. Preferably, the top cover hinge shaft 211 is a bolt shaft. Therefore, the installation is convenient.

The battery box also includes a tension assembly 240. The top beam 152 and the top end beam 121 are detachably connected by a plurality of tension assemblies 240. The take-up assembly 240 includes a tab base 241, a tab pull ring 242, a tab 243, and a tab handle 244. A tab handle 244 is pivotally connected to the tab base 241. The tab pull ring 242 is pivotally connected to a tab handle 244. The pivot location of the tab pull ring 242 is spaced from the pivot location of the tab handle 244. The hanging piece 243 has a hanging groove 245. A tab base 241 is fixedly attached to the end upper beam box facade of the end upper beam 121 remote from the center of the chassis 110. The hanger 243 is fixedly attached to the top end sill 152 box facade away from the center of the chassis 110.

Referring to fig. 8 and 9, along the length direction of the side upper beam 131 (i.e., the first horizontal direction D1), the portion of the inner face of the box of the pillar 170 connected to the side wall 130 is recessed toward the outer side of the box to form a groove and a stacking pillar 173. Along the height of column 170, the bottom surface of the groove is column upper end surface 172. The column upper end surface 172, the end upper beam top surface 123 of the end upper beam 121 and the side upper beam top surface 133 of the side upper beam 131 are in the same plane. Thus, end upper beam top face 123 and side upper beam top face 133 are connected by column upper end face 172.

Along the length of side upper beam 131, the dimension of stacking column 173 is less than the dimension of upright 170. After the top cover 150 is closed over the opening, the sealing surface of the top cover bead 155 abuts the column top surface 172, the end top rail surface 123, and the side top rail surface 133. At this time, the tab handle 244 connected to the upper end beam 121 is lifted upward, so that the tab ring 242 is hung in the hanging groove 245 of the hanging piece 243 connected to the top end beam 152; the tab handle 244 is then rotated downward to tighten the top beam 152 against the top end beam 121, thereby compressing the top cap seal 155. Thus, the gap between the top end beam 152 and the end upper beam 121, and the gap between the top end beam 152 and the column upper end face 172 are sealed by the top cover bead 155. The roof hinge 210 enables the roof side rail 151 to be pressed against the side upper rail 131 by the tension assembly 240, and the gap between the roof side rail 151 and the side upper rail 131, and the gap between the roof side rail 151 and the pillar upper end surface 172 are sealed by the roof sealing tape 155. Thereby, the top cover 150 seals the upper opening of the case.

In an embodiment not shown, it is also possible to extend the end upper beam outside the box of the upright connected to the side wall. At this time, the top surface of the end upper beam replaces the upper end surface of the upright column, or the side upper beam extends to the stacking column, and at this time, the top surface of the side upper beam replaces the upper end surface of the upright column.

As shown in fig. 13 and 14, in the case where the top cover 150 covers the upper opening, the roof side rails 151 near the front cover 160, the two pillars 170 near the front cover 160, and the bottom side rail 111 of the chassis 110 near the front cover 160 constitute side openings of the battery box. The top side sill outer panel 158 of the top side sill 151 adjacent the front cover 160, the pillar box outer panel 171 of the pillar 170 adjacent the front cover 160, and the bottom side sill outer panel 119 of the bottom side sill 111 adjacent the front cover 160 are in the same plane. The sealing surface of the top seal 155 seals against the upper column end surface 172. The seal strip end face 156 of the top cover seal strip 155 projects a predetermined distance beyond the top side beam box facade 158 and the column box facade 171.

As shown in fig. 15 and 16, the front cover 160 further includes a front cover lower beam 162 and two front cover end beams 163. The front cover lower rail 162 is located at an end of the front cover 160 away from the front cover upper rail 161 in the width direction of the front cover 160. In the first horizontal direction D1, one front cover end beam 163 is located at one end of the front cover 160, and the other front cover end beam 163 is located at the other end of the front cover 160. The front cover upper beam 161, the front cover lower beam 162 and the two front cover end beams 163 are connected to form a front cover outer frame. The front cover 160 further includes a front cover shroud 164, a front cover seal beam 165, and a front cover seal 166. The front cover sheathing plate 164 is laid on the outside of the case of the front cover outer frame away from the center of the base pan 110, and is continuously welded or continuously bonded to the front cover outer frame to seal the junction of the front cover outer frame and the front cover sheathing plate 164. The welded connection between the front cover upper beam 161, the front cover lower beam 162 and the two front cover end beams 163 is also a continuous welding to seal the connection between the front cover upper beam 161, the front cover lower beam 162 and the two front cover end beams 163. The case inner surfaces of the front cover upper member 161 and the front cover lower member 162 are flush with the case inner surfaces of the two front cover end members 163.

The front cover sealing beam 165 is a second U-shaped structure. The second U-shaped structure includes a front cover seal groove. The front cover sealing beams 165 are four. A first front cover sealing beam 165 is attached and welded to the inside of the tank of the front cover upper beam 161. A second front cover sealing beam 165 is attached and welded to the inside of the tank of the front cover lower beam 162. A third front cover sealing beam 165 is attached and welded to the inside of the tank of one front cover end beam 163. A fourth front cover sealing beam 165 is attached and welded to the inside of the tank of the other front cover end beam 163. Thus, the front cover sealing beam 165 is positioned inside the box of the front cover outer frame. Four front cover sealing beams 165 are connected by welding. With the upper door 140 in the closed position, the front cover seal slots of the four front cover seal beams 165 open toward the chassis 110. The end faces of the four front cover seal beams 165 adjacent the base plate 110 are substantially flush with the inner face of the front cover outer frame adjacent the base plate 110. The cross-section of the front cover sealing strip 166 is rectangular. The bezel seal strip 166 is disposed within the bezel seal groove. Four bezel seal strips 166 are joined to form a circumferentially closed rectangular frame such that the bezel seal strips 166 form a continuous, unitary piece. The front cover sealing strip 166 is disposed in the front cover sealing groove, and a sealing surface of the front cover sealing strip 166, which is far away from the front cover plate 164, protrudes a predetermined distance from the inner surface of the front cover outer frame.

As shown in fig. 1, 2, 14 and 15, the battery box further includes a lock 230. The latch 230 may be a prior art latch assembly. Specifically, the lock 230 includes a lock rod 231, a lock head 232, a lock seat 233, a handle 234, a bracket 235 and a lock box 236. The bracket 235 supports the lock lever 231. Handle 234 is connected to locking bar 231. The bracket 235 and the lock case 236 are fixedly coupled to the outside of the case of the front cover 160. The locking head 232 is fixedly connected to both ends of the locking rod 231. Latch bracket 233 is fixedly attached to a column housing facade 171 of column 170 remote from sidewall 130. The handle 234 is rotated to rotate the lock head 232 into the lock seat 233, so that the lock 230 is locked. With the lock 230 in the locked position, the handle 234 is secured within the lock box 236.

Preferably, a set of locks 230 is provided at positions near both ends of the front cover 160 in the width direction of the front cover 160, respectively, to enhance the coupling strength of the front cover 160 and the cabinet and to ensure the sealing performance of the front cover 160.

During the locking process of the lock 230, the front cover 160 moves toward the sidewall 130 under the cooperation of the lock 232 and the lock seat 233, and the sealing surface of the front cover sealing strip 166 presses against the top side sill outer panel 158, the pillar box outer panel 171, and the bottom side sill outer panel 119. The sealing surface of the front cover seal 166 is also pressed against the seal end face 156 of the top cover seal 155.

The seal strip end face 156 of the top cover seal strip 155 projects a predetermined distance beyond the top side beam box facade 158 and the column box facade 171. During the compressive sealing of the sealing surface of the front cover seal 166 and the seal strip end surface 156 of the top cover seal 155 to each other, the seal strip end surface 156 of the top cover seal 155 will be compressed to be substantially flush with the top side sill box facade 158 and the stud box facade 171. As a result, a sufficient sealing pressure can be generated between the sealing surface of the front cover sealing strip 166 and the sealing strip end surface 156 of the top cover sealing strip 155.

With the upper door 140 in the closed position and the latch 230 in the latched state, the front cover seal 166 seals the side opening of the battery box. At this time, continuous, good sealing can be formed between the front cover bead 166 and the top cover bead 155, and between the front cover bead 166 and the top side sill box facade 158, the pillar box facade 171, and the bottom side sill box facade 119. Further, with the upper lid 140 in the closed position, a continuous, good seal is formed between the top cover bead 155 and the end upper rail 121, between the top cover bead 155 and the side upper rail 131, and between the top cover bead 155 and the vertical post 170. In this way, the front cover bead 166 forms a continuous, good seal with the top cover bead 155.

As shown in fig. 1, 4, 5, 7 and 15, the front-cover upper beam 161 and the top-side beam 151 corresponding thereto (the top-side beam 151 away from the side wall 130), and the front-cover lower beam 162 and the bottom-side beam 111 corresponding thereto (the bottom-side beam 111 away from the side wall 130) are each provided with the tightening assembly 240. Preferably, a plurality of the tension assemblies 240 are spaced apart along the first horizontal direction D1.

The tension assembly 240 is located near a middle position of the front cover 160 in the first horizontal direction D1. Specifically, the tab base 241 of the partial tightening unit 240 is fixedly attached to the top surface of the top side rail 151 away from the side wall 130, and the hanging piece 243 is fixedly attached to the top surface of the front cover upper rail 161. The tab base 241 of the other portion of the tension assembly 240 is fixedly attached to the bottom surface of the front cover lower beam 162 and the hanging tab 243 is fixedly attached to the bottom surface of the bottom side beam 111 remote from the side wall 130.

After the front cover 160 covers the side opening, the tab ring 242 of the tension assembly 240 connected to the top cover 150 and the bottom chassis 110 is made to tension the hanging piece 243 (lock the tension assembly 240) to reinforce the pressing force of the front cover upper beam 161 and the top side beam 151 corresponding thereto and the front cover sealing tape 166 between the front cover lower beam 162 and the bottom side beam 111 corresponding thereto, to improve the sealing effect and to prevent the outer expansion deformation of the front cover upper beam 161 and the front cover lower beam 162.

The front cover upper beam 161 also has an upper stop 167 thereon. The front cover lower beam 162 also has a lower stop 168 thereon. Specifically, the upper stopper 167 is fixedly attached to the top surface of the front cover upper rail 161, and extends to protrude to the inside of the case of the front cover 160, that is, to protrude to the inside of the case of the front cover upper rail 161. The lower stopper 168 is fixedly coupled to the bottom surface of the front cover lower beam 162 and extends to protrude to the inside of the case of the front cover 160, i.e., to protrude to the inside of the case of the front cover lower beam 162. When the front cover 160 covers the side opening, the protruding portion of the upper stopper 167 is positioned above the top side member 151 away from the side wall 130 and abuts the top surface of the top side member 151, and the protruding portion of the lower stopper 168 is positioned below the bottom side member 111 away from the side wall 130 and abuts the bottom surface of the bottom side member 111, so that the top side member 151 and the bottom side member 111 are prevented from bulging outward.

Preferably, as shown in fig. 7, the tab base 241 can be connected to the lower stop 168. Thus, the battery box has a simple structure.

As shown in fig. 8 and 10, in a state where the top cover 150 covers the upper opening, the locking head 232 and the locking seat 233 are disengaged, and then the front cover 160 is moved to the separated position and fixed with the stopper pin 226. At this time, the front cover weather strip 166 is spaced apart from the top side sill outer facade 158, the pillar box outer facade 171, the bottom side sill outer facade 119 and the weather strip end face 156 by a predetermined distance. At this time, the lower stop 168 is also disengaged from the bottom side beam 111. In this case, the upper cover 140 may be moved to the open position. The upper door 140 is not blocked by the case in the process of moving the upper door 140 to the open position.

As shown in fig. 12, the end of the chassis 110 has a bottom end beam in the first horizontal direction D1. The battery case also includes end wall skin 122, side wall skin 132, and bottom panel 112. End wall skin plates 122 are continuously welded or continuously bonded to upper end beams 121, uprights 170, and the bottom end beams of chassis 110. The sidewall shrouds 132 are continuously welded or continuously bonded to the side upper beams 131, the uprights 170, and the bottom side beams 111 remote from the front cover 160. The bottom plate 112 is continuously welded or continuously bonded to the bottom side rail 111 and the bottom end rail. In the case where the upper cover 140 is located at the closed position, the battery case may form a closed container.

As shown in fig. 8 and 13, the battery box further includes a gas spring 260. The number of the gas springs 260 is two. A gas spring 260 is located inside the tank of one end wall 120. Another gas spring 260 is located inside the tank at the other end wall 120. The lower end of the gas spring 260 is hinged to the end wall 120. The upper end of the gas spring 260 is hinged to the inside of the tank of the top cover 150. The gas spring 260 can reduce the operating force of the user when opening the upper cover 140 (moving the upper cover 140 to the open position) and also can buffer the impact when closing the upper cover 140 (moving the upper cover 140 to the closed position). With the upper cover 140 in the open position, the gas spring 260 supports the upper cover 140.

As shown in fig. 6, 9 and 11, the battery box is further provided with a latch assembly 250 for safety. Latch assembly 250 includes a latch base 251, a latch rod 252, a pull ring 253, and a spring (not shown). An operation hole 177 is provided outside the box away from the center of the base plate 110 of the stacking column 173 connected to the side wall 130 in the length direction of the side upper beam 131. The latch base 251 is fixedly coupled to the stacking column 173 and is located within the operation hole 177. The stacking posts 173 connected to the side walls 130 have latch holes 178. The latch hole 178 is a through hole. The axial direction of the latch hole 178 is parallel to the longitudinal direction of the side upper beam 131. The latch rod 252 is inserted through the latch hole 178. A pull ring 253 is attached to the rear end of latch rod 252. The end of the latch rod 252 away from the tail end is a limiting end. The pull ring 253 is located in the operation hole 177. The spring is arranged in the bolt seat 251 and sleeved on the bolt rod 252. The pin holder 251 has a pin holder slot 254. When the pull ring 253 is located in the socket groove 254, the spring acts on the latch rod 252 to make the limit end of the latch rod 252 extend out of the stacking column 173 and then extend to the top cover 150.

After pulling out the pulling ring 253 from the latch receiving groove 254 through the operation hole 177 and rotating 90 °, the pulling ring 253 abuts on the case outer end face of the latch receiving groove 254. At this point, the spring is compressed and the restraining end of the latching rod 252 retracts into the stacking column 173. With the upper cover 140 in the open position, the limit end of the latch rod 252 may be extended beyond the stacking column 173 to block the top cover 150, thereby securing the upper cover 140 in the open position. Therefore, the upper cover 140 can be prevented from being closed due to the accidental failure of the gas spring 260, and further danger can be prevented.

As shown in fig. 8, 10 and 15, the upper cover 140 may be further provided with a cover handle 157. The cover handle 157 is used to close the operation of the upper cover 140. The lid handle 157 may be connected to the box facade of the top beam 152. The minimum distance between the cover handle 157 and the side upper beam 131 is greater than the minimum distance between the cover handle 157 and the side roof beam 151 away from the side wall 130 in the width direction of the top cover 150. Thereby, the operation force for closing the upper cover 140 can be reduced. A plurality of cover handles 157 are spaced apart along the width of the top cover 150 to accommodate operators of different heights.

In an embodiment not shown, the lid handle may not be provided. The front cover can be directly pulled downwards to close the upper cover.

The procedure of opening the upper cover 140 of the battery case, which should be operated by two persons when the battery case is large, is as follows.

First, the tension assembly 240 connecting the front cover upper beam 161 and the top side beam 151 is opened (the tab ring 242 of the tension assembly 240 is separated from the hanging piece 243), and the tension assembly connecting the front cover lower beam 162 and the bottom side beam 111; the lock 230 is then opened; then pull the front cover 160 outward to the off position; then the limit pin 226 is taken down from the limit pin fixing seat 227, the limit pin 226 is inserted into the limit hole 225, and is fixed through the elastic split pin 229; then the tension assembly 240 connecting the end upper beam 121 and the top end beam 152 is opened; the front cover 160 is then lifted to move the upper cover 140 to the open position; the latch rod 252 of the latch assembly 250 is then extended out of the stacking column 173 to block the top cover 150, completing the opening of the upper cover 140 of the battery box.

The procedure of closing the upper cover 140 of the battery box, which should be operated by two persons when the battery box is large, is as follows.

First retract latch rod 252 of latch assembly 250 into stacking column 173; then the upper cover 140 is pulled downwards to enable the top cover 150 to cover the upper opening; the tension assembly 240 connecting the end upper beam 121 and the top end beam 152 is then tightened to seal the upper opening; then the limit pin 226 is taken down from the limit hole 225, and the limit pin 226 is fixed to the limit pin fixing seat 227; then push the front cover 160 towards the side wall 130 until the locking head 232 enters the locking seat 233; the latch 230 is then locked and the tension assembly connecting the front cover upper beam 161 and the top side beam 151, and the tension assembly connecting the front cover lower beam 162 and the bottom side beam 111 are locked to allow the front cover 160 to cover and seal the side opening.

As shown in fig. 12, two bottom side beams 111 and two bottom end beams of the chassis 110 are connected to form a chassis outer frame. The top surface of the bottom side beam 111 and the top surface of the bottom end beam are flush in the height direction D3 of the chassis 110. The chassis 110 also includes a bottom center sill 461. The bottom center sill 461 is plural. The plurality of bottom center sills 461 are connected two by two. The length direction of the partial bottom center sill 461 is parallel to the length direction of the bottom end sill. The lengthwise direction of the partial bottom center sill 461 is parallel to the lengthwise direction of the bottom side sill 111. The bottom center sill 461 is located within the area enclosed by the chassis outer frame. The partial bottom center sill 461 is connected to an inner side surface of the bottom side member 111 near the center of the chassis 110 in the second horizontal direction D2. The partial bottom center sill 461 is connected to an inner side surface of the bottom end beam near the center of the bottom chassis 110 in the first horizontal direction D1. The top surface of the bottom center sill 461 is located below the top surface of the bottom side sill 111 in the height direction D3 of the chassis 110.

The base plate 112 is lapped on the top surface of the bottom center sill 461. The top surface of the bottom plate 112 is below the top surface of the bottom side beam 111 remote from the side walls 130. Thus, the floor 112, the bottom side beams 111 and the bottom end beams constitute a sump 113 of the chassis 110. The liquid collecting tank 113 is used for collecting leakage of the battery.

As shown in fig. 8 and 13, the chassis 110 further includes a weep net 114 and a support beam. The top surface of the weep mesh 114 and the top surface of the bottom side beam 111 are substantially flush. The support beams are located between the floor 112 and the weep network 114. A weep mesh 114 is attached to the upper end of the support beam. The lower ends of the support beams are lapped to the floor 112. Thus, the floor 112 supports the weep mesh 114 by the support beams so that the weep mesh 114 is spaced apart from the floor 112. The cells arranged on the leakage net 114 are prevented from being soaked and corroded by the leakage liquid in the liquid collecting groove 113, so that secondary damage and danger are avoided.

Preferably, the weep mesh 114 is a steel or aluminum grid. The support beam may be a beam or a pad in various forms.

The chassis 110 also includes a binding 116. The binding portion 116 is a binding ring. A binding 116 is fixed to the bottom end beam and the bottom side beam 111 for binding and fixing the battery placed on the drain net 114, preventing the battery from moving during transportation.

Preferably, as shown in fig. 8 and 12, a plurality of binding portions 116 are respectively uniformly distributed on each of the bottom end beams and the bottom side beams 111. The top surface of the bottom end beam and the top surface of the bottom side beam 111 remote from the front cover 160 are fixedly attached to the binding 116. The binding 116 is fixedly attached to the interior facade of the bottom side rail 111 near the front cover 160. The binding portion 116 is located below the top surface of the bottom side beam 111 near the front cover 160 to avoid the binding portion 116 from blocking the battery from being mounted or dismounted.

Two spacers (not shown) are also provided on the side of the weep mesh 114 that is adjacent to the front cover 160. The spacer abuts to the box inside facade near the bottom side beam 111 of the front cover 160. Such that the weep mesh 114 and the interior of the tank facade adjacent the bottom side rail 111 of the front cover 160 are spaced apart by the binding straps. At the same time, the spacers position the weep mesh 114 within the sump 113, preventing the weep mesh 114 from moving in the second horizontal direction D2. In addition, the provision of a space between the weep mesh 114 and the interior of the tank riser adjacent the bottom side rail 111 of the front cover 160 to separate the binding straps facilitates removal of the weep mesh 114 for cleaning of the sump 113.

In an embodiment not shown, the weep net may also be removably secured to the chassis by fasteners.

As shown in fig. 12 and 13, the battery box further includes a fire extinguisher 270. A fire extinguisher 270 is secured to the tank inner face of the end wall 120. Preferably, one fire extinguisher 270 is provided on each of the inner faces of the cases of the two end walls 120. Fire extinguisher 270 also has a guard rail 271 to prevent damage to fire extinguisher 270 when the batteries are removed and installed. Extinguisher 270 may be an auto-induction extinguisher. From this, fire extinguisher 270 can the auto-induction when the battery accident burns to put out a fire, avoid taking place to explode.

As shown in fig. 1 and 3, the battery case further includes a safety valve 280. A relief valve 280 is secured to the end wall 120. Preferably, the two end walls 120 are each provided with a safety valve 280. When the internal pressure of the battery case exceeds the safety pressure due to the gas generated by the accidental combustion of the battery, the safety valve 280 is actuated to release the pressure and dissipate the heat, thereby preventing the battery case from being deformed and damaged or causing explosion.

It will be appreciated that in embodiments not shown, the safety valve and fire extinguisher may also be provided on the side wall or on the upper cover.

Part of welding seams of the battery box can be welded by adopting a section welding mode. The segment welding method is to divide a gap to be welded into a plurality of segments and weld the segments of the gap when the gap is long. A space exists between any two welds. Thus, welding deformation can be reduced, and the welding work can be reduced. Thus, when the upper cover 140 is in the closed position, gas or liquid may leak from the gap of the battery case welded by the segment welding. Therefore, after the welding is finished by adopting the section welding mode, sealant is arranged at the position of the gap welded by the section welding mode for sealing the whole gap, so that gas or liquid leakage is avoided.

Preferably, the welding of the top cover sealing beam 154 and the top cover outer frame, and the welding of the front cover sealing beam 165 and the front cover outer frame may be performed by a sectional welding method. And arranging sealant for sealing the welding seam after welding.

Preferably, the four edges of the bottom plate 112 can be bent upwards to form the standing walls of the bottom plate, so as to form a shallow box-shaped structure. And the upper end of the vertical wall of the bottom plate is continuously welded with the inside vertical surface of the bottom side beam 111 and the inside vertical surface of the bottom end beam or is welded by adopting a section welding mode, and then sealant is arranged. Therefore, the four sides of the bottom plate 112 are bent to form a shallow box structure, and leakage of the battery can be better prevented from leaking out of the battery box.

Preferably, the sealed battery box may also be equipped with a ventilation device. For example, the safety valve 280 is a waterproof, breathable, and explosion-proof valve. The waterproof breathable explosion-proof valve has the waterproof, ventilating and explosion-proof functions at the same time. Thus, the safety valve 280 comprises a venting device. And when the internal pressure of the battery box is smaller than the set explosion value of the safety valve, the battery box is in a normal working state. At this time, the safety valve 280 has waterproof and ventilation functions, so that the gas inside and outside the battery box can freely circulate, the balance of the gas pressure inside and outside the battery box is realized, the deformation of the box body is prevented, the temperature inside the box body is prevented from rising, and the dryness inside the box body is kept. When the internal pressure of the battery box is greater than or equal to the set explosion value of the safety valve, the battery box belongs to an explosion-proof working state. At this time, the safety valve 280 rapidly discharges gas, thereby rapidly reducing the internal pressure of the battery case and preventing the battery case from bursting. In this case, the safety valve 280 serves an explosion-proof function.

As shown in fig. 5, 9 and 11, the battery box further includes fork slots 118, legs 117 and stacking slots 174. The fork pockets 118 are fixedly connected to the bottom end beam and/or the underside of the bottom side beam 111 to facilitate operation of the battery box by a forklift. The legs 117 are located at the four corners of the bottom of the chassis 110. The upper end of upright 170, which is connected to sidewall 130, is the aforementioned stacking post 173. The upper end of the upright 170 connected to the end of the end wall 120 remote from the side wall 130 is a stacking column 173. The stacking slot 174 is located at the top of the stacking column 173. The stacking slot 174 includes a stacking slot bottom 175 and a stacking stop 176. When two battery boxes are stacked, the legs 117 rest on the bottom 175 of the stacking channel. Along the first horizontal direction D1 and the second horizontal direction D2, the box outer sides of the legs 117 are each provided with a stacking baffle 176 to block the legs 117.

Second embodiment

As shown in fig. 17 to 21, in the second embodiment, the battery box includes a bottom plate 310, two end walls 320, a side wall 330, four posts 370, and an upper cover 340. The upper cover 340 includes a top cover 350 and a front cover 360. The structure of the battery case of the second embodiment is substantially the same as that of the battery case of the first embodiment.

The second embodiment differs from the first embodiment in that:

the battery case of the second embodiment is smaller in size than the battery case of the first embodiment. Accordingly, the number of tension assemblies and lid hinges of the second embodiment is less than that of the first embodiment. The fire extinguisher is only one. The lower end of the gas spring 460 is hinged to the side wall 330.

Further, the means for tensioning the under-hood and underside beams is an swing bolt assembly 440. The swing bolt assembly 440 includes a bolt seat 441, a bolt shaft 442, a swing bolt shaft 443, a wing nut 444, and a pressure plate 445. The bolt seat 441 is fixed to a bottom surface of the bottom side member of the chassis 310 remote from the side wall 330. The bolt shank 442 is hinged to the bolt seat 441 by means of a swing bolt shaft 443. The pressing plate 445 is fixed to the bottom surface of the front cover lower beam of the front cover 360. Wing nut 444 is threaded onto rotary bolt shaft 442. With the upper lid 340 in the closed position, the wing nuts 444 are rotated, causing the wing nuts 444 to apply pressure to the pressure plate 445 to compress the front lid lower beam to the bottom side beam. Reverse rotation of wing nut 444 releases the underside of the front cover from the underside of the front cover, leaving bolt shaft 442 in a hanging position.

A support assembly 450 is provided within the battery box. The battery box uses the support assembly 450 to perform the function of the latch assembly 250 of the first embodiment. The support assembly 450 includes a support plate 451, a fulcrum shaft 452, and a sliding shaft 455. One end of the supporting plate 451 is hinged to the case inner face of the top cover 350 by a supporting plate shaft 452. The support plate 451 has a long plate hole 453 and a stopper end hole 454. The long axis of the elongated plate hole 453 extends in the longitudinal direction of the support plate 451. One end of the elongated plate hole 453 remote from the plate shaft 452 communicates with the stopper end hole 454, so that the elongated plate hole 453 and the stopper end hole 454 constitute a J-shaped structure. The sliding shaft 455 is fixedly connected to the inner face of the box of the end upper beam. The sliding shaft 455 is inserted through the support plate 451. The slide shaft 455 is slidable in the elongated plate hole 453 along the long axis of the elongated plate hole 453.

During the movement of the upper cover 340 to the open position, the slide shaft 455 slides in the elongated plate hole 453. When the upper cover 340 is moved to the open position, the sliding shaft 455 slides to the end of the elongated plate hole 453 that communicates with the stopper end hole 454, moving the sliding shaft 455 into the stopper end hole 454. The stopper end hole 454 may block the sliding shaft 455 to prevent it from being separated from the stopper end hole 454 without an external force. At this time, the support plate 451 may support the upper cover 340 in the open position, preventing the gas spring 460 from being accidentally lost to cause the upper cover to be accidentally closed to cause danger.

The sliding shaft 455 moves from the position-limiting end hole 454 to the elongated plate hole 453, and the upper cover 340 is moved to the closed position by pulling the upper cover 340 downward. With the upper cover 340 in the closed position, the slide shaft 455 moves along the elongated plate hole 453 to an end of the elongated plate hole 453 near the elongated plate shaft 452.

Other configurations of the second embodiment are substantially the same as those of the first embodiment, and are not described herein again.

In conclusion, the battery box has a tight sealing structure, and can prevent water in the process of transporting batteries so as to prevent dangerous states of the batteries; the sealed battery box can also prevent harmful gas generated after the battery is ignited from polluting the environment.

The battery box is provided with a binding part, so that the battery can be prevented from being subjected to vibration, impact, collision and extrusion in the process of transporting the battery, and the dangerous state of the battery is prevented; the battery box is provided with an auto-induction fire extinguisher and a safety valve, so that the fire can be extinguished and the pressure can be released in time after the battery is on fire, and the battery can be prevented from exploding; the battery box is provided with a liquid collecting groove, so that the transportation safety of the battery can be ensured under the condition that the electrolyte of the battery leaks.

The third embodiment:

in a third embodiment, as shown in fig. 22 to 25, the battery box includes a bottom plate 510, a side wall 530, a top cover 550, a front cover 560, and a front cover connecting assembly 520. The front cover upper beam 561 and the top surface of the top cover 550 are connected by the front cover connection assembly 520. Thus, the front cover 560 and the top cover 550 constitute the upper cover 540.

The front cover attachment assembly 520 includes a first link plate 521, a second link plate 523, and a front cover attachment assembly shaft 524. The first connection plate 521 is fixedly connected to the top surface of the front cover upper beam 561. The second connecting plate 523 is fixedly connected to the top surface of the roof side rail of the top cover 550 away from the side wall 530.

Referring to fig. 22, 23 and 25, the first connecting plate 521 is a first U-shaped plate. With the upper cover 540 in the closed position, the opening of the first U-shaped plate faces downward. The first U-shaped plate includes a bottom wall and a standing wall. The vertical wall of the first connection plate 521 is connected to the top surface of the front cover upper beam 561. In the thickness direction of the front cover 560, a portion of the first connection plate 521 extends to protrude toward the side wall 530 out of the case inner face of the front cover 560. The portion of the vertical wall of the first connection plate 521 protruding the inner face of the case of the front cover 560 has a notch.

Shaft holes 527 are formed in both vertical walls of the first connecting plate 521. The front cover connecting assembly shaft 524 is disposed through the shaft holes 527 of the two vertical walls of the first connecting plate 521. The front cover attachment assembly 520 also includes a resilient cotter pin 529. The resilient cotter pin 529 may be coupled to the front cover attachment assembly shaft 524 that is disposed through the shaft hole 527 to secure the front cover attachment assembly shaft 524. The shaft hole 527 is located near the end of the first connection plate 521 that protrudes from the case inner face portion of the front cover 560 in the thickness direction of the front cover 560. The axial direction of the shaft hole 527 is parallel to the first horizontal direction D1.

The second connecting plate 523 is a second U-shaped plate. With the upper cover 540 in the closed position, the opening of the second U-shaped plate faces downward. The second U-shaped plate includes a bottom wall and a standing wall. The two upright walls of the second connecting plate 523 are connected to the top surface of the roof side rail of the roof cover 550 away from the side walls 530. Along the width direction of the top cover 550, a portion of the second connecting plate 523 extends to protrude the top cover 550 toward a direction away from the center of the top cover 550. The portion of the upright wall of the second connecting plate 523 protruding out of the top cover 550 is notched. The second link plate 523 has link long holes 522 in both vertical walls. The long axis of the coupling long hole 522 is parallel to the width direction of the top cover 550.

In the case where the first link plate 521 and the second link plate 523 are coupled together, two vertical walls of the second link plate 523 are disposed between the two vertical walls of the first link plate 521. The front cover coupling assembly shaft 524 is inserted through the coupling slot 522. Thus, the front cover link assembly shaft 524 can move in the extending direction of the long axis of the link long hole 522. Thus, the front cover 560 is movable in the extending direction of the long axis of the coupling long hole 522. When the front cover link assembly shaft 524 moves to the vicinity of one end of the link long hole 522 away from the center of the top cover 550, the front cover 560 rotates about the front cover link assembly shaft 524 by its own weight. Thus, the front cover 560 is movable between a closed position and an open position. When the front cover link assembly shaft 524 moves to the vicinity of one end of the link long hole 522 away from the center of the top cover 550, the front cover 560 can be moved in the process of the rotation of the top cover 550, and simultaneously, the plane on which the front cover 560 is located is always perpendicular to the second horizontal direction D2 under the action of the gravity of the front cover 560.

As shown in fig. 22 and 23, when the front cover 560 is in the closed position, the portion of the top cover 550 away from the roof side rail of the side wall 530 is located below the portion of the two upright walls of the first connecting plate 521 where the notches are provided, and the two upright walls of the first connecting plate 521 and the top surface of the roof side rail of the top cover 550 away from the side wall 530 do not interfere with each other. When the front cover 560 is located at the covering position, the part of the front cover upper beam 561 is located below the part of the two vertical walls of the second connecting plate 523, where the notches are provided, so as to prevent the two vertical walls of the second connecting plate 523 and the top surface of the front cover upper beam 561 from interfering with each other. At this time, the front cover coupling assembly shaft 524 is located at one end of the coupling long hole 522 near the center of the top cover 550.

In the case where the front cover 560 is located at the spaced-apart position in the width direction of the top cover 550, the front cover link assembly shaft 524 is located at one end of the link long hole 522 away from the center of the top cover 550.

As shown in fig. 22, the end of the second connecting plate 523 distant from the center of the top cover 550 in the width direction of the top cover 550 has a slope 528. The upper end of the ramp 528, which is distal from the base plate 510, is closer to the center of the top cover 550 than the lower end of the base plate 510, along the width of the top cover 550.

Referring to fig. 22 to 25, in a case where the upper cover 540 is located at the open position, the front cover coupling assembly shaft 524 is located at one end of the coupling long hole 522 away from the center of the top cover 550. At this time, the inclined surface 528 abuts against the inner surface of the U-shaped plate of the bottom wall of the first connection plate 521. With the upper cover 540 in the open position, the inclined surface 528 is perpendicular to the height direction D3 of the chassis 510. That is, in the case where the upper cover 540 is located at the open position, the inclined surface 528 is parallel to the second horizontal direction D2. Thus, the inclined surface 528 can make the plane of the front cover 560 be substantially perpendicular to the second horizontal direction D2 in the case that the upper cover 540 is located at the open position. With the front cover 560 in the disengaged position.

In the case where the upper cover 540 is located at the open position, the maximum distance between the front cover 560 and the sidewall 530 is smaller than the maximum distance between the center of the bottom chassis 510 and the sidewall 530 in the second horizontal direction D2. That is, in the case where the upper cover 540 is located at the open position, the front cover 560 is located at a side of the center of the chassis 510 near the sidewall 530 in the second horizontal direction D2. In this way, in the case where the upper cover 540 is located at the open position, it is convenient for the lifting rope parallel to the height direction D3 of the chassis 510 to lift or unload the battery at the central position of the chassis 510, and interference of the lifting rope with the front cover 560 is avoided.

In the case where the upper cover 540 is moved to the open position, the battery may be moved in the second horizontal direction D2 while being lifted by the lifting rope so as to be translated to the center of the chassis 510 through the side opening of the case, and then placed on the chassis 510.

In the case where the upper cover 540 is moved to the open position, the battery is lifted off the chassis 510 as it is removed by the lifting cord, and then moved in the second horizontal direction D2 so that the battery is moved out of the box horizontally through the side opening of the box.

Preferably, the front cover attachment assembly shaft 524 is removably connected to the first attachment plate 521. Thus, the coupling installation of the front cover 560 and the top cover 550 is facilitated, and the repair or replacement of the front cover 560 is facilitated.

In an embodiment not shown, the front cover attachment assembly shaft may also be a bolt shaft.

The length of the attachment long hole 522 is longer than that of the attachment long hole 222 in the first embodiment. The third embodiment does not include a spacing pin.

Compared with the first embodiment, the present embodiment does not include a stopper pin. Therefore, the operation steps of the upper cover 540 are reduced during the movement between the closed position and the open position.

If the minimum distance between the front cover link assembly shaft 524 and one end of the link long hole 522 away from the center of the top cover 550 is large, the plane on which the front cover 560 is positioned is inclined to the height direction D3 of the base plate 510 during the rotation of the top cover 550. Thus, during rotation of the top cover 550, the operator is required to move the front cover link assembly shaft 524 so that the front cover link assembly shaft 524 moves away from the center of the top cover 550 while the plane of the front cover 560 is substantially parallel to the height direction D3 of the chassis 510 to avoid interference of the front cover 560 with the case.

Preferably, since the front cover 560 is adjusted from time to time during the movement of the upper cover 540 between the closed position and the open position, the operation is complicated. Therefore, the upper cover 540 of the present embodiment is lighter in weight than the first embodiment.

Preferably, before the top cover 550 is rotated, the front cover coupling assembly shaft 524 may be moved to an end of the coupling long hole 522 away from the center of the top cover 550, and then the top cover 550 may be rotated. Thus, during the rotation of the top cover 550, the front cover 560 rotates around the front cover coupling assembly axis 524 under the influence of its own weight, so that the plane on which the front cover 560 is positioned is perpendicular to the second horizontal direction D2.

This embodiment can be applicable to the mode loading and unloading battery through fork truck loading and unloading battery and through lifting rope hoist and mount simultaneously.

Other configurations of the third embodiment are substantially the same as those of the first embodiment, and are not described herein again.

Fourth embodiment

In a fourth embodiment, referring to fig. 26-30, the front cover connecting assembly 620 includes a front cover connecting assembly shaft. The front cover connection assembly shaft includes a first assembly shaft 693 and a second assembly shaft 694.

The first connecting plate 621 has a first shaft hole 691 and a second shaft hole 692 on both vertical walls. The first shaft hole 691 and the second shaft hole 692 are provided at intervals in the thickness direction of the front cover 660. The first shaft hole 691 is located near an end of the first connection plate 621 near the tank outside of the front cover 660. The second shaft hole 692 is located near the end of the first connection plate 621 near the inside of the case of the front cover 660. The axial directions of the first shaft hole 691 and the second shaft hole 692 are both parallel to the first horizontal direction D1.

The second connecting plate 623 has a long connecting hole 622 and a fixing hole 627 in both vertical walls. The coupling long holes 622 and the fixing holes 627 are spaced apart in the width direction of the top cover 650. The fixing hole 627 is located near an end of the second connecting plate 623 near the center of the top cover 650. The long coupling holes 622 are located at the sides of the fixing holes 627 away from the center of the top cover 650. The long axis of the long connecting holes 622 is parallel to the width direction of the top cover 650. The axial direction of the fixing hole 627 is parallel to the first horizontal direction D1.

The first assembly shaft 693 passes through the first shaft hole 691 and the connection slot 622. A resilient cotter pin 629 is connected to the first assembly shaft 693 for securing the first assembly shaft 693. At this time, the second assembly shaft 694 is separated from the connection long hole 622. Thus, the first assembly shaft 693 is movable in the extending direction of the long axis of the connection long hole 622. The front cover 660 is movable between a closed position and an intermediate position along the width of the top cover 650. With the front cover 660 in the intermediate position, the front cover 660 is moved away from the top cover 650 and the cabinet. The mid-positioned front cover 660 is positioned between the front cover 660 in the closed position and the front cover 660 in the open position.

When the front cover 660 is in the closed position, the first unit shaft 693 is located on the side of the middle position of the coupling long hole 622 near the front cover 660. In the case where the front cover 660 is located at the middle position in the width direction of the top cover 650, the first assembly shaft 693 is located at one end of the coupling long hole 622 away from the center of the top cover 650.

When the front cover 660 is in the closed position, the end of the second connection plate 623 near the center of the top cover 650 is located on the side of the first connection plate 621 near the center of the top cover 650. The fixing hole 627 is located at an end of the second connecting plate 623 near the center of the top cover 650. That is, in the case where the front cover 660 is in the closed position, the fixing hole 627 is located at a side of the first connection plate 621 close to the center of the top cover 650.

When the front cover 660 is in the covering position, the second assembly shaft 694 passes through the fixing hole 627. A resilient cotter pin 629 is connected to second assembly shaft 694 for securing second assembly shaft 694 against loss.

With the front cover 660 in the intermediate position, the second shaft hole 692 of the first connecting plate 621 is located at one end of the long connecting hole 622 near the side wall 630. At this time, the second assembly shaft 694 may be inserted into the second shaft hole 692 and the connection long hole 622 after being removed from the fixing hole 627. At this point, the second assembly shaft 694 may be secured by the resilient cotter pin 629. In this way, the front cover 660 can be fixed in the intermediate position. The first assembly shaft 693 cannot move in the coupling long hole 622, so that the front cover 660 cannot move relative to the top cover 650. The front cover 660 is also unable to rotate relative to the top cover 650 about the first assembly axis 693.

With the front cover 660 in the intermediate position, the upper cover 640 can be moved to the open position. The front cover 660 does not interfere with the case during the movement of the upper cover 640 to the open position. The operation of the upper cover 640 for rotating between the open position and the closed position with the front cover 660 located at the intermediate position is substantially the same as that of the first embodiment, and will not be described in detail herein.

Since the operation of controlling the state of the front cover 660 is not required for the front cover 660 during the movement of the upper cover 640 between the closed position and the open position. Therefore, both the present embodiment and the first embodiment are applicable to the upper cover 640 having a heavy weight. Further, with the front cover 660 in the intermediate position, the battery box is adapted for loading and unloading the battery with a forklift.

If the battery needs to be lifted by the lifting rope, the operation of the front cover 660 in the middle position needs to be continued, and the specific operation is as follows:

the first component shaft 693 is inserted into the first shaft hole 691 and the connection slot 622, and the second component shaft 694 is inserted into the second shaft hole 692 and the connection slot 622, and then the first component shaft 693 is inserted into the fixing hole 627 after being removed from the first shaft hole 691. At this time, the first assembly shaft 693 may be fixed by the elastic cotter pin 629. The front cover 660 continues to be moved away from the side walls 630 in the second horizontal direction D2. In this process, the second assembly shaft 694 can move in the extending direction of the long axis of the connection long hole 622. When the second assembly shaft 694 moves to the end of the connection long hole 622 away from the center of the top cover 650, the front cover 660 moves to the separated position.

In this process, the operation of the front cover 660 is substantially the same as the operation of the front cover 560 of the third embodiment to be moved to the separated position, and the operation of the front cover 660 is also substantially the same as the operation of the front cover 560 of the third embodiment. The slope 628 is provided such that the plane of the front cover 660 in the spaced-apart position is perpendicular to the second horizontal direction D2. Thus, when the front cover 660 is moved to the off position, the battery box is adapted to hoist the battery by the lifting rope.

Other configurations of the fourth embodiment are substantially the same as those of the third embodiment, and are not described herein.

Herein, the inside of the box of a certain component means a side of the component near the center of the chassis in the case where the upper lid is located at the closed position. The outside of the case of a certain member means a side of the member away from the center of the chassis when the upper lid is in the closed position.

The inner surface of the case of a member is a surface of the member near the center of the chassis in the case where the upper lid is in the closed position. The outside of the box of a certain part is the surface of the part far from the center of the chassis under the condition that the upper cover is positioned at the closed position.

The case inside elevation of a certain part is a surface of the part near the center of the chassis in the case where the upper lid is in the closed position, and is parallel to the height direction of the chassis in the case where the upper lid is in the closed position. The case facade of a certain component is a surface of the component away from the center of the chassis in the case where the upper lid is in the closed position, and is parallel to the height direction of the chassis in the case where the upper lid is in the closed position.

The case inner standing wall of a certain component is a wall body of the component close to the center of the chassis when the upper cover is in the closed position, and the plane of the case inner standing wall is parallel to the height direction of the chassis when the upper cover is in the closed position. The case outer standing wall of a certain member is a wall body of the member away from the center of the chassis in a case where the upper lid is in the closed position, and is parallel to the height direction of the chassis in a case where the upper lid is in the closed position.

The present application has been described in terms of the above-described embodiments, but it should be understood that the above-described embodiments are for purposes of illustration and description only and are not intended to limit the application to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present application, all falling within the scope of the present application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Terms such as "component" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

Claims

1. A battery box, characterized in that the battery box comprises:

a case, the case comprising:

a chassis;

an end wall having a lower end connected to an end of the chassis in a first horizontal direction;

an upper lid, the upper lid comprising:

a top cover;

a front cover having one end connected to one end of the top cover;

the one end of top cap is kept away from the protecgulum rotationally is connected to the lateral wall, the protecgulum can move for the top cap, so that the upper cover can move between closed position and open position, under the condition that the upper cover is located closed position, the top cap lid closes to the top of box, the protecgulum lid closes to the one end of box that is kept away from the lateral wall, under the condition that the upper cover is located open position, the one end of protecgulum and top cap that is kept away from the lateral wall leaves the box.

2. The battery box according to claim 1,

the battery box includes protecgulum coupling assembling, protecgulum coupling assembling includes first connecting plate, second connecting plate and protecgulum coupling assembling axle, first connecting plate fixed connection to the protecgulum upper beam of protecgulum, second connecting plate fixed connection to keeping away from of top cap the roof side roof beam of lateral wall, first connecting plate with one in the second connecting plate has the connection slot hole, and another is connected to protecgulum coupling assembling axle, protecgulum coupling assembling axle wears to be located connect the slot hole, and can follow the major axis direction of connecting the slot hole removes, so that the protecgulum can remove between the lid closes the position and leaves the position, upward the lid is located under the condition of closing the position, the protecgulum is located the lid closes the position.

3. The battery box according to claim 2, wherein the plane of the front cover is perpendicular to the plane of the top cover, the front cover is movable between a covering position and a leaving position along the width direction of the top cover,

the battery box further comprises a limiting pin, the other one of the first connecting plate and the second connecting plate is provided with a limiting hole, and the limiting pin penetrates through the limiting hole to fix the front cover at the leaving position under the condition that the front cover is located at the leaving position.

4. The battery box according to claim 2, wherein the plane of the front cover in the closed position is perpendicular to the plane of the top cover, and when the upper cover is in the open position, the plane of the front cover in the open position is perpendicular to the second horizontal direction.

5. The battery box according to claim 4, wherein an end of the second connecting plate, which is away from the center of the top cover in the width direction of the top cover, has a slope, the slope is parallel to the second horizontal direction with the upper cover in the open position, and the bottom wall of the first connecting plate abuts against the slope so that the plane in which the front cover is located is perpendicular to the second horizontal direction.

6. The battery box according to claim 4, wherein the front cover located at the spaced-apart position is located at a side of a center of the chassis near the side wall in the second horizontal direction with the upper cover located at the open position.

7. A battery box according to any of claims 4 to 6, characterised in that the front cover is also movable to an intermediate position between the moved-out position and the closed position, the plane of the front cover in the intermediate position being perpendicular to the plane of the top cover,

the first connecting plate is provided with a first shaft hole and a second shaft hole which are arranged at intervals along the thickness direction of the front cover, the front cover connecting component shaft comprises a first component shaft and a second component shaft,

the second assembly shaft is separated from the connection long hole, the first assembly shaft is movably arranged in the first shaft hole in a penetrating way, and under the condition that the first assembly shaft is arranged in the connection long hole in a penetrating way, the front cover can move along the width direction of the top cover between the covering position and the middle position,

the first assembly shaft is separated from the connection long hole, the second assembly shaft is movably arranged in the second shaft hole in a penetrating mode, and under the condition that the second assembly shaft is arranged in the connection long hole in a penetrating mode, the front cover can move between the middle position and the separated position.

8. The battery box according to claim 7, wherein the second assembly shaft is inserted into the second shaft hole to fix the front cover in the intermediate position of the front cover.

9. The battery box of claim 1, further comprising a top cover bead located inside the top cover and connected to the top cover, wherein the top cover bead abuts against the end upper beam of the end wall and the side upper beam of the side wall when the top cover is closed to the top end of the box body.

10. The battery box of claim 9, further comprising a front cover seal located inside the front cover and connected to the front cover, wherein with the upper cover in the closed position, the front cover seal abuts a top side sill of the top cover remote from the side walls, a bottom side sill of the bottom tray remote from the side walls, and a post connected to an end of the end wall remote from the side walls.

11. The battery box according to claim 10,

the top cover also comprises a top cover sealing beam, the top cover sealing beam is positioned at the inner side of the top cover outer frame of the top cover and is connected to the top cover outer frame, the top cover sealing beam is provided with a top cover sealing groove with an opening facing to the inner side of the top cover, the top cover sealing strip is arranged in the top cover sealing groove,

the front cover further comprises a front cover sealing beam, the front cover sealing beam is located on the inner side of the front cover outer frame of the front cover and connected to the front cover outer frame, the front cover sealing beam is provided with an opening facing the front cover sealing groove on the inner side of the front cover, and the front cover sealing strip is arranged in the front cover sealing groove.

12. The battery box of claim 1, wherein the side upper beam top surfaces of the side upper beams of the side walls and the end upper beam top surfaces of the end upper beams of the end walls are flush and joined.

13. The battery box of claim 1, wherein the front cover further comprises an upper stopper connected to a top surface of the front cover upper beam of the front cover and extending to protrude from an inner surface of the front cover upper beam, and a lower stopper connected to a bottom surface of the front cover lower beam of the front cover and extending to protrude from an inner surface of the front cover lower beam, wherein with the upper cover in the closed position, a portion of the upper stopper is located above a top side beam of the top cover away from the side walls to block the top side beam from bulging, and a portion of the lower stopper is located below a bottom side beam of the chassis away from the side walls to block the bottom side beam from bulging.

14. The battery box according to claim 1, further comprising a gas spring having a lower end hinged to the end wall or the side wall and an upper end hinged to a top cover, the gas spring supporting the upper cover with the upper cover in the open position.

15. The battery box of claim 1, wherein the box further comprises posts located at corners of the box, the end walls and the side walls being connected by the posts, and latch rods movably disposed through upper ends of the posts connected with the side walls in the first horizontal direction, the latch rods being capable of protruding out of the posts toward a center of the box in the first horizontal direction to be located below the top cover with the upper lid in the open position.

16. The battery box according to claim 1, further comprising a support plate having a long plate hole with a long axis extending in a length direction of the support plate and a limit end hole located at a side of the long plate hole and communicating with the long plate hole, wherein one end of the support plate is pivotally connected to the top cover, and a slide shaft connected to the end wall and penetrating the support plate, wherein in a case where the upper cover is located at the open position, the slide shaft can be located in the limit end hole to cause the support plate to support the upper cover located at the open position.

17. The battery box of claim 1, wherein the chassis further comprises a bottom plate, a bottom end beam, a bottom side beam, and a bottom center beam, the bottom center beam being connected to an inner side surface of the bottom side beam and an inner side surface of the bottom end beam, the bottom plate being lapped to the bottom center beam, the bottom plate being located below a top surface of the bottom side beam remote from the side walls to constitute a sump.

18. The battery box of claim 17, further comprising a weep mesh having a top surface flush with the top surfaces of the bottom side beams and support beams positioned between the bottom plate and the weep mesh to support the weep mesh.

19. The battery box of claim 17, wherein the chassis further comprises a tie down connected to the bottom end beams and the bottom side beams.

20. The battery box of claim 1, further comprising a fire extinguisher connected to the end wall or the side wall and located within the box body.

21. The battery box of claim 1, further comprising a safety valve connected to one or more of the end wall, the side wall, the top cover, and the front cover.

22. The battery box according to claim 1, wherein the upper cover is provided with a cover handle.

23. The battery box of claim 1, further comprising a tension assembly,

the tightening assembly is connected to an end upper beam of the end wall and a top end beam of the top cover, and the tightening assembly is used to tighten the top cover to the end wall in a case where the upper cover is in the closed position, or

The tensioning assembly is connected to a roof side beam of the roof cover remote from the side walls and a front cover upper beam of the front cover, the tensioning assembly being for tensioning the front cover to the roof cover with the upper cover in the closed position, or

The tensioning assembly is connected to a lower front cover rail of the front cover and to a bottom side rail remote from the side walls, the tensioning assembly being configured to tension the front cover to the chassis with the upper cover in the closed position.