Quick-change bracket and electric vehicle comprising same

Abstract

The application discloses a quick-change support and an electric vehicle comprising the same. The quick-change support is used for being fixed on a vehicle beam of the electric vehicle and for mounting a battery box. The quick-change support comprises a support body, a locking mechanism and a baffle assembly. The support body is fixed on the vehicle beam. The locking mechanism is arranged on the support body. The locking mechanism is used for cooperating with a locking piece on the battery box to lock or unlock the battery tray on the support body. The baffle assembly comprises at least a baffle. The baffle is connected to at least one end of the support body in the length direction of the electric vehicle. One end of the baffle is connected to the support body. The other end of the baffle extends to the outside of the support body. The quick-change support is provided with the baffle at least one end of the support body in the length direction of the electric vehicle. Therefore, the mud splashed by the wheels of the electric vehicle can be prevented from splashing on the battery box mounted on the quick-change support behind the baffle. The battery box can be effectively protected. The locking stability of the battery box and the quick-change support can be improved.

Description

[0001] This application claims priority to Chinese Patent Application CN2021116067637 with a filing date of December 26, 2021, and Chinese Patent Application CN2021116067815 with a filing date of December 26, 2021. This application incorporates the entirety of the aforementioned Chinese Patent Applications. TECHNICAL FIELD

[0002] The present application relates to the field of battery replacement, in particular to a quick-change bracket and an electric vehicle comprising the same. BACKGROUND

[0003] In recent years, new energy vehicles have developed rapidly. Electric vehicles relying on storage batteries as driving energy have the advantages of zero emissions and low noise. With the increasing market share and usage frequency of electric vehicles, electric commercial vehicles such as electric heavy trucks and electric light trucks have also begun to appear in their respective application scenarios. Since the battery box of a direct-charging electric vehicle often needs a relatively long time for charging, quick-change electric vehicles are increasingly widely used. Quick-change electric vehicles usually have a quick-change bracket installed on the vehicle, and a battery box is detachably installed on the quick-change bracket. When the battery box is low on power, the electric vehicle drives into a battery replacement station to replace the battery box on the quick-change bracket, which can greatly save time.

[0004] However, during the driving of the electric vehicle, road dust, mud, and other foreign matter can be brought up by the tires and splashed onto the surface of the battery box. For a quick-change battery box, the foreign matter splashed onto the surface of the battery box is likely to slide between the battery box and the quick-change bracket, thereby causing wear of the battery box and the quick-change bracket, and even affecting the locking stability between the battery box and the quick-change bracket. Moreover, the battery box has high requirements for waterproofing and dustproofing. In addition to relying on the sealing property of the battery box itself, it is still necessary to minimize the contact of foreign matter with the battery box. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the problem that the battery box and the quick-change bracket are disturbed by foreign matter brought up by the tires in the prior art, and to provide a quick-change bracket and an electric vehicle comprising the same.

[0006] The present application solves the above technical problems by the following technical solutions:

[0007] A quick-change support for fixing on a beam of an electric vehicle and for mounting a battery box, the quick-change support comprising a support body, a locking mechanism and a baffle assembly, the support body is fixed on the beam, the locking mechanism is arranged on the support body, the locking mechanism is used for cooperating with a locking part on the battery box to lock or unlock the battery tray on the support body, the baffle assembly at least comprises a baffle, the baffle is connected to at least one end of the support body in the length direction of the electric vehicle, one end of the baffle is connected to the support body, and the other end of the baffle extends outwardly of the support body.

[0008] In the scheme, the quick-change support is provided with a baffle at at least one end of the support body in the length direction of the electric vehicle, so that mud splashed by the wheels of the electric vehicle can be prevented from splashing on the battery box mounted on the quick-change support behind the baffle, thereby effectively solving the problem of foreign matter invading the battery box, effectively protecting the battery box, and helping to improve the locking stability of the battery box and the quick-change support. And, the locking mechanism is arranged on the support body, and the locking and unlocking of the battery box on the mounting support are realized by the locking mechanism, thereby ensuring the reliability of the battery box during use and the mounting and dismounting efficiency of the battery box.

[0009] Preferably, the baffle is inclined in a direction extending outwardly towards a direction away from the front of the electric vehicle or a direction away from the rear of the electric vehicle.

[0010] In the scheme, the baffle of the quick-change support is inclined rearward, which can reduce wind resistance on one hand and help foreign matter falling on the baffle to slide off quickly on the other hand, thereby avoiding foreign matter from depositing on the baffle.

[0011] Preferably, the inclination of the baffle is less than or equal to 20°.

[0012] In the scheme, the inclination angle of the baffle is not greater than 20 degrees, which can meet the requirements of reducing wind and avoiding foreign matter deposition, and can also avoid the interference of the baffle being inclined too much rearward on the access of the battery box to the bottom of the electric vehicle.

[0013] Preferably, the baffle assembly further comprises a support plate, the support plate is arranged on the rear side of the baffle, and the support plate is connected to the baffle and / or the support body.

[0014] In the scheme, the support plate arranged on the rear side of the baffle can provide mounting support for the baffle, improve the overall structural strength of the baffle, and ensure stable and reliable installation of the baffle.

[0015] Preferably, the support plate is a triangular plate, a first side of the triangular plate is connected with the support body, a second side is connected with the baffle, the second side and a third side of the triangular plate respectively extend outward from the first side and meet at the end of the baffle, and the second side is inclined toward the back side of the baffle in the outward extending direction, and the third side is inclined toward the baffle in the outward extending direction.

[0016] In the scheme, the support plate is a triangular plate, which is beneficial to save installation space and reduce weight. The second side of the triangular plate is connected with the baffle, and the second side is inclined toward the back side of the baffle in the outward extending direction. The inclination angle of the second side is the same as the inclination angle of the baffle, which ensures that the support plate stably supports the baffle. The third side of the triangular plate is inclined toward the baffle in the outward extending direction, which can avoid collision and interference with the battery box during the process of the battery box entering and exiting the bottom of the electric vehicle, and also can provide guidance for the battery box to enter.

[0017] Preferably, the first side and the second side each have a folded edge, and the first side and the second side are respectively connected with the support body and the baffle through the corresponding folded edges.

[0018] In the scheme, the support plate can be conveniently connected with the support body and the baffle through the folded edges, and the connection is stable and reliable.

[0019] Preferably, the baffle assembly further comprises a mounting frame and a connecting angle plate, the mounting frame comprises a mounting frame and a connecting beam, the baffle is connected to the mounting frame, the mounting frame is connected to the support body through the connecting angle plate on both sides of the support body, and the connecting beam is located below the support body, and both ends of the connecting beam are connected with the mounting frames on both sides.

[0020] In the scheme, the baffle is connected to the mounting frame, and the connecting beam is connected with the mounting frames on both sides, so as to connect the baffles on both sides into one body, which can effectively enhance the structural strength of the baffle. The mounting frame is connected to the support body through the connecting angle plate, which is stable and reliable in mounting and convenient to disassemble and assemble.

[0021] Preferably, the baffle assembly is connected to the support body through a fastener, a waist-shaped hole is formed on the baffle assembly, and the fastener passes through the waist-shaped hole to fix the baffle assembly on the support body.

[0022] In the scheme, the baffle assembly is connected to the support body through the waist-shaped hole, which can eliminate processing and installation errors, facilitate the installation of the baffle assembly, and avoid over-positioning of the baffle assembly relative to the support body.

[0023] Preferably, the locking mechanism comprises a lock base, the locking piece is a lock shaft, the lock base is arranged below the bracket body, the lower portion of the lock base is provided with an opening and a slide channel extending from the opening, the opening is used for the lock shaft on the battery box to enter or exit the slide channel, and the opening and the slide channel both penetrate the lock base along the axial direction of the lock shaft.

[0024] In the scheme, the lock base is arranged below the bracket body, the opening of the lock base is arranged below, the battery box enters the slide channel through the opening below, so that the battery box is locked in the slide channel, the battery box is prevented from entering the slide channel from the side of the lock base, the lock shaft is prevented from sliding out from the side of the lock base, and the safety of the battery box locking can be improved.

[0025] Preferably, the quick-change bracket further comprises an electric connector, the electric connector is arranged at one end of the bracket body close to the front of the electric vehicle, and the baffles are respectively located on the two sides of the electric connector.

[0026] In the scheme, the electric connector is arranged at one end of the bracket body close to the front of the electric vehicle, the electric connector is used for electrically connecting with the battery box, and the power supply function of the battery box is ensured. The baffles are arranged on the two sides of the electric connector at one end close to the front of the electric vehicle, so that foreign matters are effectively prevented from invading the battery box behind the baffles.

[0027] Preferably, the quick-change bracket further comprises a guard plate, the guard plate is connected to at least one end of the bracket body in the width direction of the electric vehicle.

[0028] In the scheme, by arranging the guard plate, the locking mechanism can be shielded, so that foreign matters are prevented from entering the locking mechanism, the locking mechanism on the bracket body can be effectively protected, and the locking stability can be improved.

[0029] Preferably, one end of the guard plate is connected to the bracket body, and the guard plate extends towards the outside of the bracket body and gradually inclines downward in the extending direction.

[0030] In the scheme, the downward inclination of the guard plate can make the foreign matters falling on the baffles slide down quickly, and effectively prevent the accumulation of sundries on the upper surface of the guard plate.

[0031] Preferably, the lower edge of the guard plate is not lower than the lower surface of the locking mechanism or not lower than the lower surface of the longitudinal beam of the quick-change bracket.

[0032] In the present solution, to avoid the interference of the inclined baffle with the access of the battery box to the bottom of the electric vehicle and the engagement of the battery box with the locking mechanism, when the distance between the outer edges of the two baffles on both sides is less than the width of the battery box, the lower edge of the baffle is not lower than the lower surface of the longitudinal beam of the quick-change support, so that the baffle can be prevented from interfering with the access of the battery box to the bottom of the electric vehicle and the engagement of the battery box with the locking mechanism. When the distance between the outer edges of the two baffles on both sides is greater than the width of the battery box, the lower edge of the baffle is not lower than the lower surface of the locking mechanism, so that the baffle can be prevented from interfering with the access of the battery box to the bottom of the electric vehicle and the engagement of the battery box with the locking mechanism.

[0033] An electric vehicle comprising the quick-change support as described above.

[0034] In the present solution, the electric vehicle with the quick-change support can prevent the mud of the wheels of the electric vehicle from splashing onto the battery box mounted on the quick-change support behind the baffle, thereby avoiding damage to the battery box and reducing the overall loss of the vehicle.

[0035] The positive progress effect of the present application is that the quick-change support is provided with a baffle at at least one end of the support body in the length direction of the electric vehicle, so that the mud of the wheels of the electric vehicle can be prevented from splashing onto the battery box mounted on the quick-change support behind the baffle, the battery box can be effectively protected, and the locking stability of the battery box and the quick-change support can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a perspective structural schematic view of the quick-change support according to Embodiment 1 of the present application.

[0037] Figure 2 It is another perspective structural schematic view of the quick-change support according to Embodiment 1 of the present application.

[0038] Figure 3 It is a top view structural schematic view of the quick-change support according to Embodiment 1 of the present application.

[0039] Figure 4 It is a perspective structural schematic view of the baffle assembly according to Embodiment 1 of the present application.

[0040] Figure 5 It is a perspective structural schematic view of the quick-change support according to Embodiment 2 of the present application.

[0041] Figure 6 It is another perspective structural schematic view of the quick-change support according to Embodiment 2 of the present application.

[0042] Figure 7 It is a top view structural schematic view of the quick-change support according to Embodiment 2 of the present application.

[0043] Figure 8A perspective structural schematic view of the baffle assembly according to Embodiment 2 of the present application.

[0044] Figure 9 Another perspective structural schematic view of the baffle assembly according to Embodiment 2 of the present application.

[0045] Figure 10 A side structural schematic view of the quick-change support according to Embodiment 4 of the present application.

[0046] Figure 11 A partial structural schematic view of the longitudinal beam of the quick-change support according to Embodiment 4 of the present application.

[0047] Figure 12 A perspective structural schematic view of the lock base of the quick-change support according to Embodiment 4 of the present application.

[0048] Figure 13 An assembly structural schematic view of the quick-change support and the vehicle beam of the electric vehicle according to Embodiment 5 of the present application.

[0049] BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Embodiment 1

[0051] Quick-change support 100

[0052] Support body 101

[0053] Cross beam 103

[0054] Longitudinal beam 104

[0055] Column 105

[0056] Locking mechanism 106

[0057] Electric connector 107

[0058] Baffle assembly 110

[0059] Baffle 111

[0060] Support plate 113

[0061] First edge 114

[0062] Second edge 115

[0063] Third edge 116

[0064] Folded edge 117

[0065] Waist-shaped hole 118

[0066] Embodiment 2

[0067] Quick-change support 200

[0068] Support body 201

[0069] Cross beam 202

[0070] Longitudinal beam 203

[0071] Column 204

[0072] Locking mechanism 205

[0073] Electric connector 206

[0074] Baffle assembly 207

[0075] Baffle 210

[0076] Mounting frame 211

[0077] Mounting frame 213

[0078] Connecting cross beam 214

[0079] Connecting gusset 215

[0080] Embodiment 4

[0081] Quick-change support 500

[0082] Longitudinal beam 521

[0083] Lock base 530

[0084] Opening 531

[0085] Slide 532

[0086] Lock tongue 537

[0087] Lock connecting rod 538

[0088] Embodiment 5

[0089] Quick-change support 602

[0090] Vehicle beam 603 DETAILED DESCRIPTION

[0091] The present application will be further described by way of examples, but the present application is not limited to the scope of the examples.

[0092] Each of the embodiments described in the present application can be implemented independently, and those skilled in the art can also combine the embodiments according to actual needs according to the disclosure of the present application, and these combinations should be considered as the disclosure of the present application.

[0093] As Figures 1-3As shown, the embodiment 1 provides a quick-change bracket 100 for fixing on the beam of an electric vehicle and for mounting a battery box, especially for commercial vehicles such as heavy trucks, light trucks, etc. The quick-change bracket 100 comprises a bracket body 101, a locking mechanism 106 and a baffle assembly 110. The bracket body 101 is fixed on the beam of the electric vehicle. The locking mechanism 106 is arranged on the bracket body 101 and is used to cooperate with the locking part on the battery box to lock or unlock the battery tray on the bracket body 101. The baffle assembly 110 comprises at least a baffle 111 connected to at least one end of the bracket body 101 in the length direction of the electric vehicle. One end of the baffle 111 is connected to the bracket body 101, and the other end of the baffle 111 extends outwardly from the bracket body 101.

[0094] The quick-change bracket 100 is provided with the baffle 111 at at least one end of the bracket body 101 in the length direction of the electric vehicle. Therefore, the mud splashed by the wheels of the electric vehicle can be prevented from splashing onto the battery box mounted on the quick-change bracket 100 behind the baffle 111. Thus, the problem of the battery pack being invaded by foreign matters is effectively solved, the battery pack can be effectively protected, and the locking stability of the battery pack and the quick-change bracket is improved. Moreover, the locking mechanism is arranged on the bracket body, and the locking and unlocking of the battery box of the battery pack on the mounting bracket are realized by the locking mechanism. The reliability of the battery pack during use, as well as the mounting and dismounting efficiency of the battery pack, are ensured.

[0095] Specifically, the baffle 111 is inclined in the outwardly extending direction towards the direction away from the front of the electric vehicle or the direction away from the rear of the electric vehicle.

[0096] The baffle 111 of the quick-change bracket 100 is inclined rearwardly. On the one hand, the wind resistance can be reduced. On the other hand, the foreign matters falling on the baffle 111 can be quickly slid off, so as to avoid the deposition of the foreign matters on the baffle 111.

[0097] Further, the inclination of the baffle 111 is less than or equal to 20°. The requirements of reducing wind and avoiding the deposition of foreign matters can be met. Moreover, the rearward inclination of the baffle 111 is not too large, so as to avoid the interference of the battery pack with the bottom of the electric vehicle.

[0098] Specifically, the bracket body 101 comprises a cross beam 103, a longitudinal beam 104 and a column 105. The longitudinal beam 104 extends in the length direction of the electric vehicle and is fixed to the beam of the electric vehicle. The cross beam 103 is connected to the longitudinal beam 104 through the column 105. The longitudinal beam 104, the column 105 and the cross beam 103 are sequentially connected to form a rectangular frame.

[0099] In the embodiment 1, the baffle assembly 110 is connected to the upright 105 at the two ends of the cross beam 103 and extends to both sides, so as to block the foreign matters such as sand flying into the inside of the quick-change support 100 or the inside of the battery box from the front of the quick-change support 100. However, the present application is not limited to this, and in other embodiments 1, the baffle assembly 110 can also be connected to any position on the longitudinal beam 104 or the upright 105 at the two ends of the cross beam 103 close to the rear of the vehicle. In the embodiment 1, a pair of baffle assemblies 110 are provided, but the present application is not limited to this, and in other embodiments 1, two pairs of baffle assemblies 110 can also be provided at the two ends of the front and rear of the vehicle, or other numbers of baffle assemblies 110 can be provided, and the present application is not limited in this regard.

[0100] In one embodiment, the quick-change support 100 further comprises an electrical connector 107 provided at one end of the support body 101 close to the front of the electric vehicle, and the baffle 111 is located on both sides of the electrical connector 107.

[0101] In the embodiment, the electrical connector 107 is provided at one end of the support body 101 close to the front of the electric vehicle, and the electrical connector 107 is used for electrical connection with the battery pack to ensure the power supply function of the battery pack. The baffles 111 are provided on both sides of the electrical connector 107 at one end close to the front of the electric vehicle, which can effectively prevent foreign matters from invading the battery box behind the baffles 111.

[0102] As shown in Figure 4 The baffle assembly 110 further comprises a support plate 113 provided at the rear side of the baffle 111, and the support plate 113 is connected with the baffle 111 and / or the support body 101. The support plate 113 provided at the rear side of the baffle 111 can provide mounting support for the baffle 111, improve the overall structural strength of the baffle 111, and ensure stable and reliable installation of the baffle 111.

[0103] In one embodiment, the support plate 113 is a triangular plate, the first edge 114 of the triangular plate is connected with the support body 101, the second edge 115 is connected with the baffle 111, the second edge 115 and the third edge 116 of the triangular plate respectively extend outward from the first edge 114 and meet at the end of the baffle 111, and the second edge 115 is inclined toward the rear side of the baffle 111 in the outward extending direction, and the third edge 116 is inclined toward the baffle 111 in the outward extending direction.

[0104] The support plate 113 is a triangular plate, which is beneficial to save installation space and reduce weight. The second side of the triangular plate is connected with the baffle 111, and the second side is inclined towards the rear side of the baffle 111 in the direction of extending outward, and the inclination angle of the second side is the same as the inclination angle of the baffle 111, so as to ensure that the support plate 113 stably supports the baffle 111. The third side of the triangular plate is inclined towards the direction close to the baffle 111 in the direction of extending outward, which can avoid collision and interference with the battery box during the process of the battery box entering and exiting the bottom of the electric vehicle, and can also provide the battery box with an entering guide.

[0105] In one embodiment, the first side 114 and the second side 115 each have a folded edge 117, and the first side 114 and the second side 115 are respectively connected with the corresponding support body 101 and the baffle 111 through the corresponding folded edge 117. By arranging the folded edge 117, the support plate 113 can be conveniently connected with the support body 101 and the baffle 111, and the connection is stable and reliable.

[0106] Alternatively, the support plate 113 can also not be provided with the folded edge 117, but be connected with the support body 101 through welding or the like.

[0107] In other embodiments 1, the support plate 113 can also not be a triangular plate, but be any shape that can play a supporting role. Alternatively, the support plate 113 can not be arranged, and only the structural strength of the baffle 111 itself can play a supporting role.

[0108] In one embodiment, the baffle assembly 110 is connected with the support body 101 through fasteners, and the baffle assembly 110 is provided with a waist-shaped hole 118, and the fasteners pass through the waist-shaped hole 118 to fix the baffle assembly 110 on the support body 101.

[0109] Specifically, as shown in Figure 4 The folded edge 117 and the baffle 111 are each provided with a waist-shaped hole, and the baffle 111 and the folded edge 117 are respectively connected with the support body 101 through the waist-shaped hole 118 and the fastener, the waist-shaped hole 118 can eliminate processing and installation errors, facilitate installation of the baffle assembly 110, and avoid over-positioning of the baffle assembly 110 relative to the support body 101.

[0110] Example 2

[0111] As shown in Figures 5-7As shown, the embodiment provides a quick-change support 200 for fixing on a beam of an electric vehicle and for mounting a battery box, especially for commercial vehicles such as heavy trucks, light trucks, etc. The quick-change support 200 comprises a support body 201, a locking mechanism 205 and a baffle assembly 207. The support body 201 is fixed on the beam. The locking mechanism 205 is arranged on the support body 201 and is used to cooperate with a locking part on the battery box to lock or unlock the battery tray on the support body 201. The baffle assembly 207 comprises at least a baffle 210 connected to at least one end of the support body 201 in the length direction of the electric vehicle. One end of the baffle 210 is connected to the support body 201, and the other end of the baffle 210 extends outward from the support body 201.

[0112] The quick-change support 200 is provided with the baffle 210 at at least one end of the support body 201 in the length direction of the electric vehicle, so that the mud splashed by the wheels of the electric vehicle can be prevented from splashing onto the battery box mounted on the quick-change support 200 behind the baffle 210.

[0113] Specifically, the support body 201 comprises a cross beam 202, a longitudinal beam 203 and a column 204. The longitudinal beam 203 extends in the length direction of the electric vehicle and is fixed to the beam of the electric vehicle. The cross beam 202 is connected to the longitudinal beam 203 through the column 204. The longitudinal beam 203, the column 204 and the cross beam 202 are sequentially connected to form a rectangular frame.

[0114] The quick-change support 200 further comprises an electrical connector 206 arranged at one end of the support body 201 close to the front of the electric vehicle. The baffle 210 is respectively located on both sides of the electrical connector 206. The electrical connector 206 is arranged at one end of the support body 201 close to the front of the electric vehicle, and is used to electrically connect with the battery box to ensure the power supply function of the battery box. The baffle 210 is arranged on both sides of the electrical connector 206 at one end close to the front of the electric vehicle, which can effectively prevent foreign matters from invading the battery pack behind the baffle 210.

[0115] In the embodiment, the baffle assembly 207 is connected to the columns 204 at both ends of the cross beam 202 and extends to both sides, so as to block the foreign matters such as sand flying into the inside of the quick-change support 200 or the battery box from the front of the quick-change support 200. However, the present application is not limited thereto. In other embodiments, the baffle assembly 207 can also be connected to any position on the longitudinal beam 203 or the columns 204 at both ends of the cross beam 202 close to the rear of the vehicle. In the embodiment, a pair of baffle assemblies 207 are arranged. However, the present application is not limited thereto. In other embodiments, two pairs of baffle assemblies 207 or other numbers of baffle assemblies 207 are arranged at both ends of the front and rear of the vehicle, and the present application is not limited thereto.

[0116] As shown inFigures 8-9 As shown, the baffle assembly 207 also includes a mounting frame 211 and a connecting corner plate 215. The mounting frame 211 includes a mounting frame 213 and a connecting beam 214. The baffle 210 is connected to the mounting frame 211. The mounting frame 211 is connected to the support body 201 on both sides of the support body 201 through the connecting corner plate 215. The connecting beam 214 is located below the support body 201, and both ends of the connecting beam 214 are connected to the mounting frames 211 on both sides.

[0117] The baffle 210 is connected to the mounting frame 211, and the connecting beam 214 is connected to the mounting frames 211 on both sides respectively, thereby connecting the baffles 210 on both sides into one unit, which can effectively enhance the strength of the baffle 210. The mounting frame 211 is connected to the bracket body 201 through the connecting corner plate 215, which makes the installation stable and reliable, and easy to assemble and disassemble.

[0118] In this embodiment, the baffle 210 is square in shape, but the present invention is not limited to this. In other embodiments, the baffle 210 can be set to other shapes, such as circles, polygons, etc.

[0119] The connecting corner plate 215 has a Z-shaped structure. One end is connected to the front surface of the column 204, the middle part is attached to the outer surface of the column 204, and the other end is connected to the rear surface of the mounting frame 211.

[0120] The mounting frame 211 is connected to the four sides of the baffle 210 to strengthen the baffle 210. The mounting frame 211 is composed of four hollow tubes connected to form a frame, which helps to reduce weight. In this embodiment, the edge of the baffle 210 covers the mounting frame 211 to achieve a fixed connection between the two. In other embodiments, the mounting frame 211 can be connected to the baffle 210 by welding, fastener connection, etc.

[0121] In one embodiment, the baffle assembly 207 is connected to the bracket body 201 by fasteners. The baffle assembly 207 has an oblong hole, through which the fasteners pass to fix the baffle assembly 207 to the bracket body 201. Specifically, the connecting angle plate 215 has an oblong hole, and the connecting angle plate 215 is fastened to the mounting frame 211 and the bracket body 201 respectively through the oblong hole and fasteners. The oblong hole can eliminate machining and installation errors, facilitate the installation of the baffle assembly 207, and prevent the baffle assembly 207 from being over-positioned relative to the bracket body 201.

[0122] In this embodiment, the plane of the baffle 210 is parallel to the front surface of the crossbeam 202. However, the present invention is not limited to this. Considering wind resistance, the baffle 210 can be appropriately tilted, preferably at an angle not exceeding 20 degrees, to reduce wind resistance while avoiding excessive space occupation.

[0123] Example 3

[0124] The quick-change bracket in this embodiment is largely the same as the quick-change bracket in Embodiment 1, except that:

[0125] The quick-change bracket also includes a protective plate, which is connected to at least one end of the bracket body in the width direction of the electric vehicle.

[0126] Specifically, the guard plate is located above the locking mechanism. By setting the guard plate, the locking mechanism can be blocked, thereby preventing foreign objects from entering the locking mechanism. This can effectively protect the locking mechanism on the bracket body and improve locking stability.

[0127] One end of the guard plate is connected to the support body, and the guard plate extends outward toward the support body and gradually slopes downward in the extending direction. The downward slope of the guard plate allows foreign objects that fall onto the guard plate to slide off quickly, effectively preventing debris from accumulating on the upper surface of the guard plate.

[0128] In other embodiments, the guard plate may extend horizontally instead of tilting. The guard plate may extend to cover the entire longitudinal beam of the quick-change bracket, or it may only cover a portion of the longitudinal beam.

[0129] The guard plate can cover the locking mechanism, improving the stability of the lock. The tilt of the guard plate can prevent debris from accumulating on the upper surface of the guard plate.

[0130] Preferably, the lower edge of the guard plate is not lower than the lower surface of the locking mechanism or the lower surface of the longitudinal beam of the quick-change bracket.

[0131] Specifically, to prevent the tilted guard plates from interfering with the battery box's entry and exit from the bottom of the electric vehicle and with the engagement of the battery box with the locking mechanism, when the distance between the outer edges of the two guard plates on both sides is less than the width of the battery box, the lower edge of the guard plate should not be lower than the lower surface of the longitudinal beam of the quick-change bracket. This prevents the guard plates from interfering with the battery box's entry and exit from the bottom of the electric vehicle and with the engagement of the battery box with the locking mechanism. When the distance between the outer edges of the two guard plates on both sides is greater than the width of the battery box, the lower edge of the guard plate should not be lower than the lower surface of the locking mechanism. This also prevents the guard plates from interfering with the battery box's entry and exit from the bottom of the electric vehicle and with the engagement of the battery box with the locking mechanism.

[0132] Example 4

[0133] The quick-change bracket in this embodiment is largely the same as that in Embodiment 1, except that:

[0134] like Figures 10-12As shown, the locking mechanism includes a lock base 530, and the locking piece is a lock shaft. The lock base 530 is arranged below the bracket body. The lower portion of the lock base 530 is provided with an opening 531 and a slide 532 extending from the opening 531. The opening 531 is used for the lock shaft on the battery box to enter or exit the slide 532. The opening 531 and the slide 532 both penetrate the lock base along the axis direction of the lock shaft. The lock base 530 is arranged below the bracket body. The opening 531 of the lock base 530 is arranged below. The battery box enters the slide 532 through the opening 531 below, so that the battery box is locked in the slide 532. This avoids the battery box entering the slide 532 from the side of the lock base 530. The lock shaft cannot slide out from the side of the lock base 530. The safety of the battery box locking can be improved.

[0135] Specifically, both ends of the lock shaft are exposed to the slide 532. Both ends of the lock shaft are connected to the battery pack. Thus, the middle part of the lock shaft is clamped in the slide 532. Both ends of the lock shaft bear the force of the battery box. The uniformity of the force acting on the lock shaft is improved. The lock shaft cannot slide out from the side of the lock base 530. The safety of the battery box locking can be improved.

[0136] In the embodiment, the lock base 530 is detachably connected to the longitudinal beam of the bracket body. In other embodiments, the lock base 530 can be integrally formed with the longitudinal beam. The embodiment is not limited in particular.

[0137] Further, the locking mechanism further includes a lock tongue 537 and a lock connecting rod 538. The lock tongue 537 is pivotally arranged in the lock base 1111. The lock tongue 537 can swing in the accommodation groove and the slide 532 to communicate or block the slide 532. The lock connecting rod 538 acts on the lock tongue 537. The lock connecting rod 538 is used to drive the lock tongue 537 to swing. The lock tongue 537 is arranged in the accommodation groove. The structure is compact and convenient to operate. The lock tongue 537 can lock the lock shaft on the battery box in the slide 532. The lock connecting rod is convenient to apply force to the lock tongue to implement the locking and unlocking operations. It is also convenient to synchronously control multiple lock tongues.

[0138] Further, in other embodiments, the connection mode of the lock base 530 and the lock shaft can also adopt a bolt type lock or a T type lock. The above embodiments are not limited in particular. Specifically, a first threaded part can be arranged in the opening 531 of the lock base 530. A second threaded part matched with the first threaded part is arranged on the lock shaft of the locking piece. That is, the connection mode of the lock base 530 and the lock shaft is a bolt type lock. The lock base 530 and the lock shaft are locked by the cooperation of the first threaded part and the second threaded part. Or, a stop part is arranged in the opening 531 of the lock base 530. A limiting part matched with the stop part is arranged on the lock shaft of the locking piece. That is, the connection mode of the lock base 530 and the lock shaft is a T type lock. The lock base 530 and the lock shaft are locked by the cooperation of the limiting part and the stop part.

[0139] Example 5

[0140] As Figure 13 shown, the embodiment provides an electric vehicle comprising the quick-change support described in any of the above embodiments or the quick-change support formed by the non-contradictory mutual combination of these embodiments 602. The quick-change support is installed below the vehicle beam 603 of the electric vehicle.

[0141] The electric vehicle with the quick-change support can prevent the mud of its own wheels from splashing onto the battery box installed on the quick-change support behind the baffle, thereby avoiding damage to the battery box and reducing the overall loss of the vehicle.

[0142] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and such changes and modifications fall within the protection scope of the present application.

Claims

1. A quick-change bracket for fixing to a car beam of an electric vehicle and for mounting a battery case, characterized in that, The quick-change bracket comprises a bracket body, a locking mechanism and a baffle assembly, the bracket body is fixed on the vehicle beam, the locking mechanism is arranged on the bracket body, the locking mechanism is used for cooperating with a locking part on the battery box to lock or unlock the battery box on the bracket body, and the baffle assembly comprises at least a baffle, the baffle is connected to at least one end of the bracket body in the length direction of the electric vehicle, one end of the baffle is connected to the bracket body, and the other end of the baffle extends outward from the bracket body. The baffle assembly further comprises a mounting frame and a connecting angle plate, the mounting frame comprises a mounting frame and a connecting cross beam, the baffle is connected to the mounting frame, the mounting frame is connected to the bracket body through the connecting angle plate on both sides of the bracket body respectively, and the connecting cross beam is located below the bracket body, and both ends of the connecting cross beam are connected to the mounting frames on both sides respectively. The bracket body comprises a cross beam, a longitudinal beam and a vertical column, the longitudinal beam extends in the length direction of the electric vehicle, the longitudinal beam is fixed to the vehicle beam of the electric vehicle, the cross beam is connected to the longitudinal beam through the vertical column, and the longitudinal beam, the vertical column and the cross beam are sequentially connected to form a rectangular frame. The baffle assembly is connected to the vertical columns at both ends of the cross beam and extends to both sides.

2. The quick-change bracket of claim 1, wherein, The baffle is inclined in the outward extending direction towards the direction away from the front of the electric vehicle or the direction away from the rear of the electric vehicle.

3. The quick-change bracket of claim 2, wherein, The inclination of the baffle is less than or equal to 20°.

4. The quick-change bracket of claim 2, wherein, The baffle assembly further comprises a support plate, the support plate is arranged on the rear side of the baffle, and the support plate is connected to the baffle and / or the bracket body.

5. The quick-change bracket of claim 4, wherein, The support plate is a triangular plate, a first side of the triangular plate is connected to the bracket body, a second side of the triangular plate is connected to the baffle, the second side and a third side of the triangular plate extend outward from the first side and meet at the end of the baffle respectively, and the second side is inclined towards the rear side of the baffle in the outward extending direction, and the third side is inclined towards the baffle in the outward extending direction.

6. The quick-change bracket of claim 5, wherein, Both the first side and the second side have folded edges, and the first side and the second side are connected to the bracket body and the baffle respectively through the corresponding folded edges.

7. Fast exchange support according to any of claims 1 to 6, characterized in that The baffle assembly is connected to the bracket body through a fastener, a waist-shaped hole is arranged on the baffle assembly, and the fastener passes through the waist-shaped hole to fix the baffle assembly on the bracket body.

8. Fast exchange support according to any of claims 1 to 6, characterized in that The locking mechanism comprises a lock base, the locking part is a lock shaft, the lock base is arranged below the bracket body, an opening and a slide are arranged below the lock base, the opening is used for allowing the lock shaft on the battery box to enter and exit the slide, and the opening and the slide penetrate the lock base along the axis direction of the lock shaft.

9. Fast exchange support according to any of claims 1 to 6, characterized in that The quick-change bracket further comprises an electric connector, the electric connector is arranged at one end of the bracket body close to the front of the electric vehicle, and the baffles are arranged on both sides of the electric connector respectively.

10. The quick change bracket of any one of claims 1 to 6, wherein, The quick-change support further includes a guard plate connected to at least one end of the support body in the width direction of the electric vehicle.

11. The quick-change bracket of claim 10, wherein, One end of the guard plate is connected to the support body, and the guard plate extends toward the outside of the support body and gradually inclines downward in the extending direction.

12. The quick-change bracket of claim 11, wherein, The lower edge of the guard plate is not lower than the lower surface of the locking mechanism or not lower than the lower surface of the longitudinal beam of the support body.

13. An electric vehicle characterized by comprising: It includes the quick-change support as claimed in any one of claims 1-12.

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