Battery compartment and battery-changing electric automobile

Abstract

The utility model provides a battery compartment and a battery-changing electric automobile, a battery containing space for containing a battery is defined by the battery compartment, and a battery inlet / outlet is formed in one side wall of the battery compartment; a plurality of second clamping parts are formed on two opposite second side walls of the battery compartment, and the second clamping parts are used for being correspondingly clamped and matched with first clamping parts on a vehicle bottom frame of the battery replacement electric vehicle, so that the battery compartment is locked on the vehicle bottom frame; and an unlocking mechanism is arranged on the battery compartment and drives the second clamping part to be separated from the first clamping part when acting so as to unlock the battery compartment. The battery compartment disclosed by the utility model is an independent structural component, and self-locking is realized by matching and clamping the second clamping part on the battery compartment with the first clamping part of the vehicle bottom frame; the unlocking mechanism is arranged on the battery bin and drives the second clamping part to be separated from the first clamping part when acting so as to unlock the battery bin, so that the battery bin is smoothly separated from the vehicle bottom frame, and the battery bin can be independently maintained and repaired conveniently.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the electric automobile battery swap technical field, specifically a kind of battery compartment and including the battery compartment of battery swap electric automobile. BACKGROUND

[0002] In related art, battery swap electric automobile is usually fixedly arranged vehicle bottom frame and battery compartment in the bottom of vehicle, battery compartment is fixedly arranged in vehicle bottom frame, battery is loaded in battery compartment, locking and unlocking device is configured on battery compartment, to lock and unlock release battery.

[0003] Specifically, when vehicle enters battery swap station's battery swap position and carries out battery swap, transfer trolley enters the bottom of vehicle, the battery locking and unlocking device of the bottom of vehicle battery compartment is unlocked and released to release battery, transfer trolley is received and is released to battery, and battery is transferred to battery swap station and is charged;Meanwhile, transfer trolley is loaded with full battery and is transported to the bottom of vehicle, and full battery is transported to battery compartment and is locked in battery compartment by battery locking and unlocking device.

[0004] Since battery compartment is fixedly arranged in the vehicle bottom frame, and the space of vehicle bottom is limited, battery compartment and its related structure maintenance, maintenance difficulty is big. SUMMARY

[0005] The utility model provides a kind of battery compartment and battery swap electric automobile, can solve the problem of related art that battery compartment is fixedly arranged in the vehicle bottom frame, inconvenient maintenance.

[0006] To achieve the above technical effect, the technical scheme of the battery compartment proposed by the utility model is a kind of battery compartment, the battery compartment is enclosed with the battery containing space for containing battery, one side wall of the battery compartment is formed with battery inlet and outlet;

[0007] Second clamping portion is formed on the two opposite second side walls of the battery compartment, and the second clamping portion is used for corresponding clamping cooperation with the first clamping portion on the vehicle bottom frame of battery swap electric automobile, to lock the battery compartment on the vehicle bottom frame;

[0008] Unlocking mechanism is provided on the battery compartment, which drives the second clamping portion to disengage from the first clamping portion when it acts, to unlock the battery compartment.

[0009] In the technical scheme of the utility model, the following additional technical features are also included:

[0010] Second clamping portion is claw, one end of the second clamping portion is rotatably connected to the second side wall through first pivot shaft, first torsional spring is sleeved on the first pivot shaft, and the restoring force of the first torsional spring is used to drive the second clamping portion and the first clamping portion to be tightly matched;

[0011] The unlocking mechanism comprises a slider and a conversion assembly, the slider is arranged on the battery compartment and slides in a first direction, the conversion assembly connects the slider and the second clamping part, and is used for converting the reciprocating sliding of the slider into rotation of the second clamping part, so that the second clamping part is rotated to be separated from the first clamping part, and the first torsional spring is deformed to store energy during the rotation of the second clamping part to be separated from the first clamping part.

[0012] The conversion assembly is a linkage assembly, comprising a first linkage and a second linkage, one end of the first linkage is hinged to the slider, the other end of the first linkage is hinged to one end of the second linkage, the other end of the second linkage is hinged to a second rotating shaft of the second clamping part, and the second linkage is hinged to the second side wall through a third rotating shaft, the first rotating shaft, the second rotating shaft and the third rotating shaft are arranged in parallel and are perpendicular to the first direction.

[0013] The same slider is connected to two groups of the conversion assembly, and the two groups of the conversion assembly are connected to two second clamping parts on the opposite second side walls, respectively.

[0014] The slider is arranged on the bottom plate of the battery compartment, a pushing matching part is formed on the bottom surface of the slider, and a bottom through part is formed on the bottom plate of the battery compartment and corresponds to the pushing matching part.

[0015] A sliding guide part is formed on the battery compartment and is in sliding guide cooperation with the slider.

[0016] The two inner side walls adjacent to the battery inlet and outlet of the battery compartment are provided with guide limiting strips, and the guide limiting strips are used for being matched with the sliding grooves on the battery side walls.

[0017] One end of the guide limiting strip close to the battery inlet and outlet is a conical structure.

[0018] The utility model further provides a battery swap electric vehicle, which comprises:

[0019] A battery compartment is provided above.

[0020] Two opposite first side walls of the bottom frame are provided with a plurality of first clamping parts, and the first clamping parts are clamped with the second clamping parts.

[0021] Compared with the prior art, the utility model has the following advantages and positive effects:

[0022] The battery compartment is an independent structural component, and is matched and clamped with the first clamping part of the vehicle bottom frame through the second clamping part thereon, so that self-locking is realized, and the installation stability of the battery compartment on the vehicle bottom frame is ensured; the battery compartment is provided with an unlocking mechanism, the second clamping part is driven to separate from the first clamping part when the unlocking mechanism is actuated, so that the battery compartment is unlocked, the battery compartment is smoothly separated from the vehicle bottom frame, and the battery compartment and the related structure thereof can be conveniently maintained and repaired. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0024] Figure 1 It is a perspective view of the battery compartment in some embodiments of the present utility model from one angle;

[0025] Figure 2 It is a perspective view of the battery compartment in some embodiments of the present utility model from another angle;

[0026] Figure 3 It is a perspective view of the battery compartment in some embodiments of the present utility model from still another angle;

[0027] Figure 4 It is a structural schematic view of the battery compartment in some embodiments of the present utility model after omitting the outer cover body;

[0028] Figure 5 It is a perspective view of the unlocking mechanism of the battery compartment in some embodiments of the present utility model from one angle;

[0029] Figure 6 It is a perspective view of the unlocking mechanism of the battery compartment in some embodiments of the present utility model from another angle;

[0030] Figure 7 It is a bottom perspective view of the sliding piece of the unlocking mechanism of the battery compartment in some embodiments of the present utility model;

[0031] Figure 8 It is a perspective view of the vehicle bottom frame in some embodiments of the present utility model from one angle;

[0032] Figure 9 It is a perspective view of the vehicle bottom frame in some embodiments of the present utility model from another angle;

[0033] Figure 10 It is a partially exploded structural schematic view of the vehicle bottom frame in some embodiments of the present utility model;

[0034] Figure 11 is a first side wall local partial exploded structural schematic view of a vehicle underframe in some embodiments of the utility model;

[0035] Figure 12 is an assembly structure schematic view of a battery compartment and a vehicle underframe in some embodiments of the utility model;

[0036] Figure 13 is Figure 12 a side view;

[0037] Figure 14 is Figure 13 an A-A sectional view;

[0038] Figure 15 is Figure 14 a B part enlarged view.

[0039] Reference signs:

[0040] 100, vehicle underframe;110, battery compartment containing space;120, battery compartment inlet and outlet;130, first side wall;131, outer side plate;132, inner side plate;133, inner side through part;134, clamping block;135, first protruding part;136, guide inclined surface;137, vertical beam;138, second protruding part;139, through hole;1310, cross beam;1311, bottom reinforcing beam;1312, wedge-shaped guide block;1313, end reinforcing beam;1314, positioning hole;140, first clamping part;150, third side wall;160, horizontal baffle;

[0041] 200, battery compartment;210, battery containing space;220, battery inlet and outlet;230, second clamping part;231, first rotating shaft;232, second rotating shaft;240, second side wall;250, first torsional spring;260, sliding piece;261, actuating cooperation part;262, extension;270, bottom through part;280, sliding guide part;290, first connecting rod;2100, second connecting rod;2110, third rotating shaft;2120, guide limiting strip;2130, cushion block;2140, outer cover;2150, framework structure. DETAILED DESCRIPTION

[0042] In the description of the utility model, it needs to be explained that, unless there is explicit stipulation and limitation, the terms "mount", "connect", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;It can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements inside.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0043] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0044] In some embodiments of the present application, a battery replacement electric vehicle is provided, comprising a vehicle bottom frame 100 and a battery compartment 200, and the vehicle bottom frame 100 is fixed to the bottom of the battery replacement electric vehicle through the top thereof.

[0045] In some embodiments of the present application, the vehicle bottom frame 100 is provided with a battery compartment accommodating space 110, and the battery compartment 200 is accommodated in the battery compartment accommodating space 110. Figures 8 to 11 The bottom of the vehicle bottom frame 100 is open to form a battery compartment inlet and outlet 120, and the battery compartment inlet and outlet 120 is in communication with the battery compartment accommodating space 110, so as to realize the entry and exit of the battery compartment 200 from the bottom of the vehicle bottom frame 100 to the battery compartment accommodating space 110.

[0046] The vehicle bottom frame 100 comprises an annular circumferential side wall, and the circumferential side wall comprises two opposite first side walls 130, and a plurality of first clamping portions 140 are formed on the first side walls 130.

[0047] In some embodiments of the present application, the vehicle bottom frame 100 is provided with a battery compartment accommodating space 110, and the battery compartment 200 is accommodated in the battery compartment accommodating space 110. Figures 1 to 7 In some embodiments of the present application, the vehicle bottom frame 100 is provided with a battery compartment accommodating space 110, and the battery compartment 200 is accommodated in the battery compartment accommodating space 110. Figures 12 to 15 The battery compartment 200 is arranged in the battery compartment accommodating space 110 and is detachably connected with the vehicle bottom frame 100; the battery compartment 200 surrounds a battery accommodating space 210 for accommodating a battery, and a battery inlet and outlet 220 is formed on one side wall of the battery compartment 200, i.e., the battery enters and exits the battery compartment 200 from the side of the battery compartment 200; a plurality of second clamping portions 230 are formed on the second side wall 240 of the battery compartment 200 corresponding to the two opposite first side walls 130 of the vehicle bottom frame 100, and the plurality of second clamping portions 230 are one-to-one correspondingly clamped and matched with the plurality of first clamping portions 140, so as to lock the battery compartment 200 in the battery compartment accommodating space 110.

[0048] An unlocking mechanism is arranged on the battery compartment 200, and when the unlocking mechanism is actuated, the second clamping portion 230 is separated from the first clamping portion 140, so as to unlock the battery compartment 200 and the battery in the battery compartment, and realize the disconnection of the battery compartment 200 and the vehicle bottom frame 100.

[0049] In some embodiments of the present application, the battery compartment is a separate structural component, and the second clamping portion on the battery compartment is matched and clamped with the first clamping portion of the vehicle bottom frame to realize self-locking, so as to ensure the stability of the installation of the battery compartment on the vehicle bottom frame; at the same time, the unlocking mechanism is arranged on the battery compartment, and when the unlocking mechanism is actuated, the second clamping portion is separated from the first clamping portion to unlock the battery compartment, so that the battery compartment is smoothly separated from the vehicle bottom frame, and the battery compartment and the related structure thereof are conveniently maintained and repaired.

[0050] In some embodiments of the present application, the battery profile is approximately rectangular, and the profiles of the battery compartment 200 and the vehicle bottom frame 100 are approximately rectangular.

[0051] In some embodiments of the present application, the second side wall 240 is a lengthwise side wall of the battery compartment 200, the first side wall 130 is a lengthwise side wall of the underbody frame 100, and the second clamping portion 230 can be spaced apart along the length direction of the second side wall 240, and correspondingly, the first clamping portion 140 can be provided in multiple along the length direction of the first side wall 130, so as to improve the locking reliability of the battery compartment 200 in the underbody frame 100.

[0052] For the second clamping portion 230 of the battery compartment 200, as shown in Figures 5 to 11 , the second clamping portion 230 is a clamping jaw, one end of which is provided with a first rotating shaft 231, the first rotating shaft 231 is fixedly connected to the second side wall 240, the top end of the second clamping portion 230 is rotationally connected to the first rotating shaft 231, and further rotationally connected to the second side wall 240 of the battery compartment 200, and the bottom surface of the second clamping portion 230 serves as a clamping surface for abutting against the first clamping portion 140; a first torsional spring 250 is sleeved on the first rotating shaft 231, and the restoring force of the first torsional spring 250 drives the second clamping portion 230 to tightly fit with the first clamping portion 140, that is, the second clamping portion 230 is clamped in the first clamping portion 140 under the elastic restoring force of the first torsional spring 250.

[0053] In the process that the battery compartment 200 together with the battery in the compartment moves upward through the battery compartment inlet and outlet 120 at the bottom of the underbody frame 100 to enter the battery compartment containing space 110, the second clamping portion 230 of the battery compartment 200 is always pressed against the first torsional spring 250 to deform and store energy under the extrusion of the first side wall 130 of the underbody frame 100, and the second clamping portion 230 is equivalent to being in a compressed state, when it moves to the position where the first clamping portion 140 is reached, under the restoring force of the first torsional spring 250, the second clamping portion 230 is clamped in the first clamping portion 140, thereby locking and positioning the battery compartment 200 in the underbody frame 100, as shown in Figures 12 to 15 .

[0054] Under the gravity of the battery compartment 200 and the battery in the compartment, the second clamping portion 230 is stably clamped in the first clamping portion 140.

[0055] In order to realize the disconnection of the battery compartment 200 and the underbody frame 100, in some embodiments of the present application, an unlocking mechanism is provided on the battery compartment 200, which drives the second clamping portion 230 to disengage from the first clamping portion 140 when it acts, so as to unlock the battery compartment 200 and the battery in the compartment.

[0056] For the unlocking mechanism of the battery compartment 200, as shown in Figures 4 to 7As shown, the battery compartment 200 includes a sliding member 260 arranged to slide along a first direction on the battery compartment 200, and a conversion assembly arranged between the sliding member 260 and the second clamping portion 230 to connect the sliding member 260 and the second clamping portion 230, and configured to convert the reciprocating sliding of the sliding member 260 into rotation of the second clamping portion 230, so that the second clamping portion 230 can rotate to disengage from the first clamping portion 140, and the first torsional spring 250 is deformed to store energy during the rotation of the second clamping portion 230 to disengage from the first clamping portion 140.

[0057] When the battery compartment 200 and the battery in the battery compartment need to be unlocked, the sliding member 260 is slid along the first direction, and the second clamping portion 230 is driven to rotate to disengage from the first clamping portion 140 by the conversion assembly. During the rotation of the second clamping portion 230 to disengage from the first clamping portion 140, the second clamping portion 230 presses the first torsional spring 250 to deform and store energy.

[0058] In some embodiments of the present application, the sliding member 260 is arranged on the bottom plate of the battery compartment 200, and a bottom pushing cooperation portion 261 is formed on the bottom surface of the sliding member 260. A bottom through portion 270 is formed on the bottom plate of the battery compartment 200 corresponding to the bottom pushing cooperation portion 261, so as to facilitate the operation of the bottom pushing cooperation portion 261 from the bottom of the battery compartment 200 to slide the sliding member 260. For example, a driving component such as an electric push rod is arranged on a transfer trolley of a battery replacement station to cooperate with the bottom pushing cooperation portion 261 to push the sliding member 260 to slide along the first direction.

[0059] Since the second clamping portion 230 is arranged on the second side wall 240 of the battery compartment 200, i.e. on the length direction side wall of the battery compartment 200, the first direction is the horizontal direction perpendicular to the second side wall 240, i.e. the width direction of the battery compartment 200.

[0060] In some embodiments of the present application, as shown in Figure 3 and Figure 7 As shown, the bottom pushing cooperation portion 261 is a plurality of strip-shaped recessed portions arranged in sequence along the first direction to facilitate pushing.

[0061] As shown in Figures 4 to 6 A sliding guide portion 280 is formed on the bottom surface of the battery compartment 200, and the sliding guide portion 280 cooperates with the sliding of the sliding member 260 to guide the sliding of the sliding member 260, so as to ensure smooth operation of the sliding member 260, and further ensure smooth and reliable rotation operation of the second clamping portion 230.

[0062] Specifically, the sliding guide portion 280 can be a slide or a sliding groove, which is not limited here. In order to reduce the height direction space occupation, the sliding member 260 is a horizontal plate with a large area to ensure the structural strength.

[0063] For the conversion assembly, in some embodiments of the present application, it is a linkage assembly, such as Figure 5 and Figure 6 as shown, including a first linkage 290 and a second linkage 2100, one end of the first linkage 290 is hinged to the slider 260, the other end is hinged to one end of the second linkage 2100, the other end of the second linkage 2100 is hinged to the second rotating shaft 232 of the second clamping part 230 (the second rotating shaft 232 is located at the lower part of the second clamping part 230 and is integrally connected with the second clamping part 230), the second linkage 2100 is hinged to the second side wall 240 of the battery compartment 200 through the third rotating shaft 2110 (the third rotating shaft 2110 is fixedly arranged on the second side wall 240 of the battery compartment 200), the first rotating shaft 231, the second rotating shaft 232 and the third rotating shaft 2110 are arranged in parallel and perpendicular to the first direction.

[0064] When the slider 260 slides along the first direction, the second clamping part 230 is driven to rotate and disengage from the first clamping part 140 through the transmission of the first linkage 290 and the second linkage 2100.

[0065] The linkage assembly has the advantages of simple structure, mechanical transmission, no need for electricity, low manufacturing cost and low failure rate.

[0066] In some embodiments of the present application, the same slider 260 connects two sets of conversion assemblies, and the two sets of conversion assemblies are respectively connected to two second clamping parts 230 on opposite second side walls 240, that is, the two second clamping parts 230 on opposite second side walls 240 are respectively connected to the same slider 260 through a set of conversion assemblies, and the two second clamping parts 230 are synchronously driven to rotate by the same slider 260, so as to simplify the structure as much as possible and synchronize the unlocking actions of multiple second clamping parts 230, so that the battery compartment 200 can be smoothly unlocked.

[0067] Specifically, as shown in Figures 4 to 6 , the opposite sides of the slider 260 respectively extend outward to form extension parts 262, and the extension parts 262 on both sides are respectively connected to the conversion assemblies on the corresponding sides. The two sets of conversion assemblies are the same in structure, and only the shape of the first linkage 290 is slightly different, so that when the slider 260 slides along the first direction, the two second clamping parts 230 on both sides can be synchronously driven to disengage from the corresponding first clamping parts 140 through the two sets of conversion assemblies.

[0068] For the cooperation between the battery and the battery compartment 200, in some embodiments of the present application, as shown in Figure 1 and Figure 4 , the inner walls of the two inner side walls adjacent to the battery inlet and outlet 220 of the battery compartment 200, i.e. the inner walls of the second side walls 240, are provided with guide limiting strips 2120; the guide limiting strips 2120 are matched with the sliding grooves on the side walls of the battery.

[0069] Specifically, the battery inlet and outlet 220 is arranged on the side of the battery compartment 200, and the battery does not need to be put in and taken out from the bottom of the battery compartment 200, but is put in and taken out from the side of the battery compartment 200. The sliding groove on the side of the battery cooperates with the guide limiting strip 2120, which can guide the movement of the battery and fix the battery, and further ensure the smooth movement of the battery when the battery enters or moves out of the inside of the battery compartment 200, and prevent the battery from tilting.

[0070] The cooperation of the sliding groove on the side of the battery and the guide limiting strip 2120 can realize the side entry and fixation of the battery, and can also reduce the manufacturing cost and failure rate of the battery compartment 200; without complex motor driving mechanism and locking components, the structure of the battery compartment 200 is simpler, and the battery compartment 200 is easy to manufacture and maintain.

[0071] Further, one end of the guide limiting strip 2120 close to the battery inlet and outlet 220 is a tapered structure, which makes the guide limiting strip 2120 more easily inserted into the sliding groove on the side of the battery.

[0072] The bottom surface of the battery compartment 200 is provided with a plurality of pads 2130 to lift the battery and prevent the battery from interfering with the sliding of the sliding member 260. The guide limiting strip 2120 is also staggered with the conversion assembly and the second clamping part 230 to prevent interference.

[0073] Although the battery inlet and outlet 220 of the battery compartment 200 exposes one side of the battery when the battery is in the battery compartment 200, when the battery compartment 200 and the battery enter the underframe 100, the circumferential side wall of the underframe 100 can completely wrap the side of the battery compartment 200 and the battery, as shown in Figure 8 to ensure the safety of the battery in use.

[0074] In some embodiments of the present application, as shown in Figures 1 to 4 the battery compartment 200 includes a metal outer cover 2140 and an internal skeleton structure 2150 to ensure the structural strength and sealing of the battery compartment 200 as much as possible. The second clamping part 230 is specifically rotationally connected to the side wall of the skeleton structure 2150, and the sliding member 260 is slidingly arranged on the bottom wall of the skeleton structure 2150.

[0075] In some embodiments of the present application, the circumferential side wall of the underframe 100 is fixed with a horizontal baffle 160 at the top of the four corners, which limits and stops the battery compartment 200 from moving into the battery compartment accommodating space 110 from bottom to top. At the same time, the underframe 100 can be fixed to the underframe beam of the battery swap electric vehicle through the horizontal baffle 160.

[0076] In some embodiments of the present application, the top of the bottom frame 100 is provided with induction components (not shown) at each of the four corners, such as on the bottom surface of the two horizontal baffles 160 at the corners, for sensing whether the battery compartment 200 is in place. The induction components can be proximity sensors or pressure sensors, etc., which are not limited here.

[0077] In order to increase the structural strength of the bottom frame 100 as much as possible on the basis of reducing the weight of the bottom frame 100 as much as possible, in some embodiments of the present application, as shown in Figure 11 The first side wall 130 of the bottom frame 100 includes an outer shell and a reinforcing framework in the shell.

[0078] Specifically, the outer shell includes an outer side plate 131 and an inner side plate 132, and the inner side plate 132 is formed with an inner side through portion 133; the reinforcing framework is provided with a clamping block 134 at a position corresponding to the inner side through portion 133, the outer side of the clamping block 134 is fixed to the outer side plate 131, the inner side of the clamping block 134 is formed with a first protruding portion 135, the first protruding portion 135 is embedded in the inner side through portion 133 and abuts against the bottom wall of the inner side through portion 133, the first protruding portion 135 has a guide inclined surface 136, the guide inclined surface 136 is at a distance from the top wall of the inner side through portion 133, so that the guide inclined surface 136 and the inner side through portion 133 form a first clamping portion 140 in the form of a groove, i.e. the first clamping portion 140 is a clamping groove.

[0079] By arranging the clamping block 134 between the outer side plate 131 and the inner side plate 132 to form the first clamping portion 140 with the through portion of the inner side plate 132, the clamping block 134 is fixed to the outer side plate 131 as a whole, and is embedded in the inner side through portion 133 and abuts against the bottom wall of the inner side through portion 133, and can be further fixed to the bottom wall of the inner side through portion 133, so that the first clamping portion 140 in the form of a clamping groove has sufficient depth and structural strength, and can cooperate with the second clamping portion 230 on the battery compartment 200 to support the battery compartment 200 and the battery in the compartment; if the first clamping portion 140 is formed on a whole side plate, in order to ensure the depth and structural strength of the first clamping portion 140, the thickness of the side plate must be large, which will increase the weight and manufacturing cost of the whole first side wall 130 and even the bottom frame 100, and accordingly increase the manufacturing cost of the battery swap vehicle.

[0080] In some embodiments of the present application, the inner side plate 132, the outer side plate 131, the reinforcing framework, and the clamping block 134 can be fixed as a whole by welding.

[0081] In some embodiments of the present application, as shown in Figures 8 to 10As shown, the outer side plate 131 is provided with a positioning hole 1314 at a position corresponding to the clamping block 134, and the outer side of the clamping block 134 is provided with a positioning protrusion (not shown due to the viewing angle), which is embedded in the positioning hole 1314. On the one hand, the positioning protrusion can play a positioning role on the clamping block 134, and on the other hand, it can also increase the contact area of the clamping block 134 and the outer side plate 131, thereby improving the connection reliability.

[0082] Further, the reinforcing framework includes a plurality of vertical beams 137 arranged at intervals along the length direction of the first side wall 130, and the inner and outer sides of the vertical beams 137 are formed with second protruding portions 138. The outer side plate 131 and the inner side plate 132 are correspondingly formed with through holes 139, and the second protruding portions 138 are embedded in the through holes 139. By connecting the plurality of second protruding portions 138 of the plurality of vertical beams 137 with the inner side plate 132 and the outer side plate 131 respectively, the contact area of the reinforcing framework with the outer side plate 131 and the inner side plate 132 can be increased, thereby further increasing the connection strength of the reinforcing framework and enhancing the structural strength of the entire first side wall 130 and even the vehicle floor framework 100.

[0083] In some embodiments of the present application, the shell further includes a top plate, a bottom plate, a front end plate and a rear end plate, which together with the inner side plate 132 and the outer side plate 131 form a closed hollow shell structure. The top plate and the bottom plate can be an integral bending structure with the outer side plate 131 or the inner side plate 132, so as to Figure 11 For example, the top plate and the bottom plate are an integral bending structure with the outer side plate 131 and are welded to the top edge and the bottom edge of the inner side plate 132. The top plate and the bottom plate are also provided with a plurality of protruding structures along the length direction, and the top edge and the bottom edge of the inner side plate 132 are correspondingly formed with recessed structures. The protrusions and the recesses are matched one by one, thereby improving the welding connection reliability.

[0084] Similarly, the connection parts of the front end plate and the outer side plate 131, the connection parts of the front end plate and the inner side plate 132, the connection parts of the rear end plate and the outer side plate 131, and the connection parts of the rear end plate and the inner side plate 132 are also formed with recessed and protruding structures matched with each other, thereby further improving the welding connection reliability and further improving the structural strength of the entire first side wall 130.

[0085] As shown in FIG. 1, the first side wall 130 is provided with a plurality of clamping blocks 134 arranged at intervals along the length direction of the first side wall 130. Figure 11 As shown, the clamping block 134 is located between two adjacent vertical beams 137, and the two adjacent vertical beams 137 are connected by a cross beam 1310. The clamping block 134 is fixedly arranged on the cross beam 1310. The clamping block 134, the vertical beam 137 and the cross beam 1310 can be welded to form an integral structure, thereby further improving the structural strength.

[0086] In some embodiments of the present application, as shown in FIG. 1, the first side wall 130 is provided with a plurality of clamping blocks 134 arranged at intervals along the length direction of the first side wall 130. Figures 8 to 10As shown, the first side wall 130 further comprises a bottom reinforcing beam 1311 fixed to the bottom of the shell, the bottom reinforcing beam 1311 extending from one end of the shell to the other end, and a guide inclined surface is formed on the inner side of the bottom reinforcing beam 1311 to facilitate the battery compartment 200 to enter the battery compartment containing space 110.

[0087] Specifically, the bottom reinforcing beam 1311 and the shell can be fixed integrally by welding or screw connection, which is not specifically limited here. The guide inclined surface can be formed by fixedly arranging a wedge-shaped guide block 1312 on the inner side of the bottom reinforcing beam 1311, and the inclined surface of the wedge-shaped guide block 1312. On the one hand, the bottom reinforcing beam 1311 can further improve the structural strength of the entire vehicle bottom frame 100, and on the other hand, it is also convenient to set the guide inclined surface for guiding the battery compartment 200 without increasing the complexity of the shell structure as much as possible.

[0088] In some embodiments of the present application, in addition to the two opposite first side walls 130, the circumferential side wall of the vehicle bottom frame 100 further comprises two opposite third side walls 150 connected perpendicularly to the two first side walls 130, so as to form a rectangular circumferential side wall of the vehicle bottom frame 100. The inner side of the two opposite third side walls 150 is provided with an end reinforcing beam 1313 to enhance the structural strength of the third side wall 150, and the end reinforcing beam 1313 can be screwed or welded on the third side wall 150. The inner side of the end reinforcing beam 1313 is also formed with a guide inclined surface to facilitate the battery compartment 200 to enter the battery compartment containing space 110.

[0089] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery compartment, characterized in that: The battery compartment forms a battery housing space for accommodating batteries, and a battery inlet and outlet are formed on one side wall of the battery compartment. Multiple second snap-fit ​​portions are formed on the two opposite second sidewalls of the battery compartment. The second snap-fit ​​portions are used to engage with the first snap-fit ​​portions on the underframe of the battery swapping electric vehicle to lock the battery compartment onto the underframe. The battery compartment is equipped with an unlocking mechanism, which, when activated, causes the second latching part to disengage from the first latching part, thereby unlocking the battery compartment.

2. The battery compartment according to claim 1, characterized in that, The second locking part is a claw. One end of the second locking part is rotatably connected to the second side wall through its first rotating shaft. A first torsion spring is sleeved on the first rotating shaft. The restoring force of the first torsion spring is used to drive the second locking part to fit tightly with the first locking part. The unlocking mechanism includes a slider and a conversion component. The slider is slidably disposed on the battery compartment along a first direction. The conversion component connects the slider and the second locking part, and is used to convert the reciprocating sliding of the slider into the rotation of the second locking part, so that the second locking part rotates away from the first locking part, and the first torsion spring is driven to deform and store energy during the process of the second locking part rotating away from the first locking part.

3. The battery compartment according to claim 2, characterized in that, The conversion assembly is a linkage assembly, including a first linkage and a second linkage. One end of the first linkage is hinged to the sliding member, and the other end is hinged to one end of the second linkage. The other end of the second linkage is hinged to the second pivot of the second locking part. The second linkage is hinged to the second side wall through a third pivot. The first pivot, the second pivot, and the third pivot are arranged in parallel and perpendicular to the first direction.

4. The battery compartment according to claim 2, characterized in that, The same sliding member connects two sets of the conversion components, and the two sets of conversion components are respectively connected to the second snap-fit ​​parts on the two opposite second sidewalls.

5. The battery compartment according to claim 2, characterized in that, The sliding member is disposed on the bottom plate of the battery compartment, and a sliding engagement part is formed on the bottom surface of the sliding member. A bottom through part is formed on the bottom plate of the battery compartment at the location corresponding to the sliding engagement part.

6. The battery compartment according to claim 2, characterized in that, The battery compartment has a sliding guide portion that slides and guides the sliding member.

7. The battery compartment according to claim 6, characterized in that, Guide limiting strips are provided on the two inner side walls adjacent to the battery inlet and outlet of the battery compartment. The guide limiting strips are used to match the sliding grooves on the battery side wall.

8. The battery compartment according to claim 7, characterized in that, The end of the guide limit strip near the battery inlet and outlet has a tapered structure.

9. A battery-swapping electric vehicle, characterized in that, include: The battery compartment is the battery compartment as described in any one of claims 1 to 8; The vehicle underframe is fixed to the bottom of the battery swapping electric vehicle at its top. Multiple first snap-fit ​​parts are formed on two opposite first sidewalls of the vehicle underframe, and the first snap-fit ​​parts snap-fit ​​with the second snap-fit ​​parts.

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