Quick-change structure assembly and electric automobile comprising same

Abstract

The invention discloses a quick-change structure assembly and an electric automobile comprising the quick-change structure assembly, the quick-change structure assembly comprises a battery pack, a battery changing support and a plurality of locking parts, the plurality of locking parts are used for locking the battery pack in the battery changing support, and the locking parts are used for locking the battery pack in the battery changing support. The locking part is used for clamping and fixing the battery pack to limit relative displacement of the battery pack in the battery replacing support in the X direction and the Z direction, and the Y-direction limiting mechanism is used for limiting relative movement of the battery pack in the battery replacing support in the Y direction after the locking part is clamped and fixed. The electric automobile comprises the quick change structure assembly. Relative movement of the battery pack in the battery replacing support in the Y direction is limited through the Y-direction limiting mechanism, so that left-right displacement of the battery pack is reliably limited, abnormal sound or abrasion caused by collision between the battery pack and the battery replacing support is avoided, the safety performance of the quick replacing structure assembly is greatly improved, and the service life of the quick replacing structure assembly is greatly prolonged.

Description

[0001] This application is a divisional of a Chinese invention patent with an application date of February 28, 2019, application number 201910151484.2, and name “Quick-change structure assembly and electric vehicle containing the same”. Technical Field

[0002] The invention relates to a quick-change structure assembly and an electric vehicle comprising the same. Background Art

[0003] In electric vehicles, the X direction refers to the length direction of the electric vehicle, the Y direction refers to the width direction of the electric vehicle, and the Z direction refers to the direction perpendicular to the X and Y directions. At present, the quick-change battery pack assembly uses a lock tongue to limit the position in the X direction. The lock shaft on the battery pack moves in the X direction and is inserted into the locking groove. The lock tongue limits the movement of the lock shaft in the locking groove along the X direction, and the rubber limit block elastomer is used as an aid to ensure that there is no gap in the X direction. In the Z direction, a multi-point transition fit is adopted. The battery pack uses a locking mechanism at multiple points to install and connect with the battery replacement bracket. The diameter of the lock shaft is 12mm, the height of the locking groove on the lock base is 12.1mm, and the matching clearance is 0-0.1mm. Although there is a certain processing error, the actual error is 0.1-0.3mm. The two-level error is assembled and used. In the actual use of the locking mechanism, there is a form of over-positioning restriction, which is bound to have a phenomenon of multiple points knocking against each other in the Z direction, which invisibly leads to a gapless state in the Z direction, preventing the vibration of the Z direction during vehicle driving.

[0004] Due to the need for battery replacement, the battery pack needs a certain gap between the battery pack and the battery replacement bracket in the Y direction. If there is no gap, the battery pack will be stuck in the middle of the battery replacement bracket and cannot be replaced. At present, the gap between the side of the battery pack in the Y direction and the battery replacement bracket is 18mm. The elastic limit block plus the dead limit are adopted. The dead limit width is 17mm, and the elasticity of the elastic limit block is 0-1.3mm. Under normal circumstances, the elastic limit block is compressed by 0.3mm (interference), and the battery pack is movable by 1mm on both sides of the Y direction. Because the battery pack weighs about 400KG when the electric vehicle is turning, the centrifugal force will overcome the elastic body, causing the battery pack to move left and right in the Y direction, friction between the lock shaft and the lock base, abnormal noise and other undesirable phenomena, affecting the normal driving feel. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the battery pack of an electric vehicle will produce left and right displacement under conditions such as turning, and produce undesirable phenomena such as abnormal noise, which affects the normal driving feel, and to provide a quick-change structure assembly and an electric vehicle containing the same.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] A quick-change structure assembly, comprising a battery pack, a battery-changing bracket and a plurality of locking components, wherein the plurality of locking components are used to lock the battery pack in the battery-changing bracket to limit the relative displacement of the battery pack in the battery-changing bracket along the X direction and the Z direction, and the quick-change structure assembly also includes:

[0008] At least one Y-direction limiting mechanism, the Y-direction limiting mechanism is used to limit the relative movement of the battery pack in the Y direction in the battery replacement bracket after the locking component is engaged and fixed;

[0009] The Y-direction limiting mechanism includes a limiting member provided on the battery pack and a fixing member provided on the battery exchange bracket, wherein the limiting member is connected to the fixing member to limit the relative movement of the battery pack in the battery exchange bracket along the Y direction;

[0010] The limiting member includes a protrusion, one end of the protrusion is connected to the battery pack, and the other end of the protrusion extends outward along the X direction;

[0011] The fixing member includes a fixing plate, one side of the fixing plate is connected to the battery exchange bracket, and the other side of the fixing plate has an inwardly recessed limiting groove, and the protrusion is inserted into the limiting groove.

[0012] In the present solution, the above-mentioned structural form is adopted, and the relative movement of the battery pack in the Y direction in the battery swap bracket is limited by the Y-direction limiting mechanism, thereby reliably limiting the left and right displacement of the battery pack. Even when turning or running unevenly, abnormal noise or wear caused by collision in the Y direction between the battery pack and the battery swap bracket can be avoided, greatly improving the safety performance and service life of the quick-change structure assembly.

[0013] At the same time, the battery pack is connected to the fixings on the battery swap bracket through a limiter, which effectively strengthens the connection strength between the battery pack and the battery swap bracket, thereby limiting the relative movement of the battery pack in the Y direction inside the battery swap bracket.

[0014] In addition, by inserting the protrusion into the limit groove, the movement control of the battery pack in the battery replacement bracket along the Y direction is enhanced; at the same time, the structure is simple and easy to process and manufacture.

[0015] Preferably, the limiting member further comprises a flange portion, one side of the flange portion is connected to the battery pack, and the protruding portion is connected to the other side of the flange portion;

[0016] Alternatively, the limiting member and the battery pack are integrally formed.

[0017] Preferably, the limiting groove is in a trumpet shape.

[0018] In the present solution, the above-mentioned structural form is adopted, and the trumpet shape facilitates the insertion of the protrusion into the limiting groove, thereby achieving precise positioning and controlling the movement of the battery pack along the Y direction in the battery replacement bracket.

[0019] Preferably, the fixing plate and the battery replacement bracket are integrally formed;

[0020] Alternatively, the fixing plate is connected to the battery replacement bracket via fasteners.

[0021] Preferably, the protrusion is in the shape of a cylinder or a cone.

[0022] Preferably, one end of the protrusion facing the limiting groove has a first sliding guide surface.

[0023] In this solution, the above-mentioned structural form is adopted, and the first guide sliding surface plays a guiding role to ensure that the protrusion is inserted into the limiting groove, thereby improving the installation reliability of the quick-change structure assembly.

[0024] Preferably, there are multiple limit members and multiple fixing members, and there is a one-to-one correspondence between the multiple limit members and the multiple fixing members, the multiple fixing members are all located on the same side of the battery exchange bracket as the vehicle-end electrical connector, the multiple limit members are all located on the same side of the battery pack as the battery-end electrical connector, and the multiple limit members are respectively arranged at both ends of the battery-end electrical connector.

[0025] In the present solution, the above-mentioned structural form is adopted, and the stability of the connection between the battery-end electrical connector and the vehicle-end electrical connector can be enhanced through the Y-direction limiting mechanism, which effectively avoids the phenomenon of displacement and misalignment in the Y-direction when the battery-end electrical connector and the vehicle-end electrical connector are connected, thereby greatly improving the stability of the quick-change structure assembly.

[0026] Preferably, the quick-change structure assembly also includes a plurality of elastic limit components, one end of each of the elastic limit components is respectively connected to two sides of the battery pack along the Y direction, and the other ends of each of the elastic limit components are against the inner wall surface of the battery replacement bracket.

[0027] In the present solution, the above-mentioned structural form is adopted, and the elastic limiting components are installed on both sides of the battery pack along the Y direction to clamp the battery pack in the battery swap bracket. After the battery pack is installed, the elastic limiting components play a clamping role in the Y direction of the battery swap bracket, so that the battery pack can be clamped in the battery swap bracket very reliably, further avoiding abnormal noise or wear caused by collision of the battery pack in the Y direction in the battery swap bracket, thereby greatly improving the safety performance and service life of the quick-change structure assembly.

[0028] Preferably, the elastic limiting component comprises:

[0029] A mounting shell, the mounting shell being fixedly mounted on the battery pack, the mounting shell having an accommodating cavity inside, and an outer side surface of the mounting shell being provided with a mounting opening communicating with the accommodating cavity;

[0030] A limiting portion, wherein the limiting portion is disposed through the mounting opening, and an outer side surface of the limiting portion extends outward from the mounting opening along the Y direction and abuts against an inner wall surface of the battery replacement bracket;

[0031] An elastic component acts on the inner side surface of the limiting portion and transmits a variable force between the limiting portion and the mounting shell, so as to provide a clamping force outward along the Y direction to the battery exchange bracket.

[0032] Preferably, the top of the outer side surface of the mounting shell has a second guide sliding surface;

[0033] And / or, the top of the limiting portion extending out of the installation opening has a third guide sliding surface.

[0034] In the present solution, the above-mentioned structural form is adopted, and the second guide sliding surface and the third guide sliding surface can better play a guiding role to ensure that the battery pack is inserted into the battery swap bracket, and to ensure that the elastic limit component acts on the battery swap bracket.

[0035] Preferably, the quick-change structure assembly also includes a plurality of snap-on limit assemblies, the snap-on limit assemblies including a battery pack snap-on limiter arranged on the battery pack and a bracket snap-on limiter arranged on the battery exchange bracket, the battery pack snap-on limiter is clamped on the bracket snap-on limiter to limit the relative movement of the battery pack in the upward direction along the Y direction within the battery exchange bracket.

[0036] In the present solution, the above-mentioned structural form is adopted, and the relative movement of the battery pack in the Y direction in the battery swap bracket is further limited by the buckle limit assembly, thereby reliably limiting the left and right displacement of the battery pack. Even when turning or running unevenly, abnormal noise or wear caused by collision in the Y direction between the battery pack and the battery swap bracket can be avoided, further improving the safety performance and service life of the quick-change structure assembly.

[0037] Preferably, a plurality of the battery pack buckle limiters are respectively fixed on both sides of the battery pack along the Y direction, and a battery pack accommodating space is provided between the battery pack buckle limiters and the side surfaces of the battery pack;

[0038] A plurality of the bracket buckle limiters correspond to a plurality of the battery pack buckle limiters one by one, and the bracket buckle limiters are fixed to the inner wall surface of the battery swap bracket, and a bracket accommodating space is provided between the bracket buckle limiters and the inner wall surface of the side wall of the battery swap bracket;

[0039] The battery pack buckle limiter is clamped in the bracket accommodating space, and the bracket buckle limiter is clamped in the bracket accommodating space.

[0040] An electric vehicle comprises the quick-change structure assembly as described above.

[0041] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0042] The positive and progressive effects of the present invention are:

[0043] The quick-change structure assembly of the present invention and the electric vehicle comprising the same limit the relative movement of the battery pack in the Y direction within the battery swap bracket through the Y-direction limiting mechanism, thereby reliably limiting the left and right displacement of the battery pack, avoiding abnormal noise or wear caused by collision between the battery pack and the battery swap bracket, and greatly improving the safety performance and service life of the quick-change structure assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic structural diagram of the quick-change structure assembly of Example 1 of the present invention.

[0045] Figure 2 This is a schematic diagram of the exploded structure of the quick-change structure assembly of Example 1 of the present invention.

[0046] Figure 3 This is a schematic structural diagram of the battery replacement bracket of the quick-change structural assembly of Example 1 of the present invention.

[0047] Figure 4 Schematic diagram of the internal structure of the Y-axis limiting mechanism of the quick-change structure assembly of Example 1 of the present invention.

[0048] Figure 5 Schematic diagram of the internal structure of the elastic limiting component of the quick-change structure assembly of Example 1 of the present invention.

[0049] Figure 6 It is a structural schematic diagram of the buckle limit component of the quick-change structure assembly of Example 1 of the present invention.

[0050] Figure 7 This is a schematic diagram of the partial structure of the battery pack of the quick-change structure assembly of Example 2 of the present invention.

[0051] Figure 8 This is a partial structural schematic diagram of the battery replacement bracket of the quick-change structural assembly of Example 2 of the present invention.

[0052] Description of reference numerals:

[0053] Battery Pack 10

[0054] Battery replacement bracket 20

[0055] Locking member 30

[0056] Y-axis limit mechanism 40

[0057] Limiting piece 41

[0058] Raised portion 411

[0059] Flange 412

[0060] First guide surface 413

[0061] Fixing 42

[0062] Fixed plate 421

[0063] Limiting slot 422

[0064] Elastic limit assembly 50

[0065] Install Shell 51

[0066] Accommodating chamber 511

[0067] Installation port 512

[0068] The second guide surface 513

[0069] Limiting part 52

[0070] The third guide surface 521

[0071] Buckle limit assembly 60

[0072] Battery pack buckle limiter 61

[0073] Battery pack storage space 611

[0074] Bracket buckle limiter 62

[0075] Bracket accommodating space 621

[0076] X direction 100

[0077] Y direction 200

[0078] Z direction 300 DETAILED DESCRIPTION

[0079] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

[0080] Example 1

[0081] like Figures 1 to 6As shown, the quick-change structure assembly of this embodiment includes a battery pack 10, a battery-changing bracket 20, a plurality of locking components 30 and at least one Y-direction limiting mechanism 40, and the plurality of locking components 30 are used to lock the battery pack 10 in the battery-changing bracket 20 to limit the relative displacement of the battery pack 10 in the battery-changing bracket 20 along the X-direction 100 and the Z-direction 300. In this embodiment, the locking component 30 adopts a locking shaft and a locking base, and a plurality of locking shafts are respectively fixed on both sides of the battery pack 10, and the locking base is fixed in the battery-changing bracket 20. The battery pack 10 can move along the Y-direction 200 in the battery-changing bracket 20, so that the locking shaft can be inserted into the locking base or detached from the locking base.

[0082] The Y-axis limiting mechanism 40 is used to limit the relative movement of the battery pack 10 in the battery swap bracket 20 along the Y-axis 200 after the locking component 30 is engaged and fixed. The Y-axis limiting mechanism 40 limits the relative movement of the battery pack 10 in the battery swap bracket 20 along the Y-axis 200, thereby reliably limiting the left and right displacement of the battery pack 10. Even when turning or running unevenly, it can avoid abnormal noise or wear caused by collision between the battery pack 10 and the battery swap bracket 20 in the Y-axis 200, greatly improving the safety performance and service life of the quick-change structure assembly.

[0083] The Y-axis limiting mechanism 40 includes a limiting member 41 disposed on the battery pack 10 and a fixing member 42 disposed on the battery swap bracket 20, and the limiting member 41 is connected to the fixing member 42 to limit the relative movement of the battery pack 10 in the battery swap bracket 20 along the Y-axis 200. The battery pack 10 is connected to the fixing member 42 on the battery swap bracket 20 through the limiting member 41, which effectively strengthens the connection strength between the battery pack 10 and the battery swap bracket 20, thereby limiting the relative movement of the battery pack 10 in the battery swap bracket 20 along the Y-axis 200.

[0084] The limiting member 41 includes a protruding portion 411, one end of which is connected to the battery pack 10, and the other end of which extends outward along the X direction 100; the fixing member 42 includes a fixing plate 421, one side of which is connected to the battery exchange bracket 20, and the other side of which has an inwardly recessed limiting groove 422, and the protruding portion 411 is inserted into the limiting groove 422. By inserting the protruding portion 411 into the limiting groove 422, the movement control of the battery pack 10 in the battery exchange bracket 20 along the Y direction 200 is enhanced; at the same time, the structure is simple and the processing and manufacturing are convenient.

[0085] The shape of the limit groove 422 is trumpet-shaped. The trumpet shape facilitates the insertion of the protrusion 411 into the limit groove 422, thereby achieving precise positioning and controlling the movement of the battery pack 10 along the Y direction 200 in the battery replacement bracket 20. Among them, the shape of the protrusion 411 can be cylindrical, and the shape of the protrusion 411 can also be cone-shaped. It is only required that the protrusion 411 can be inserted into the limit groove 422 and accurately positioned and matched.

[0086] One end of the protrusion 411 facing the limiting groove 422 has a first guide surface 413. The first guide surface 413 plays a guiding role to ensure that the protrusion 411 is inserted into the limiting groove 422, thereby improving the installation reliability of the quick-change structure assembly.

[0087] The limiting member 41 and the battery pack 10 are integrally formed, which effectively enhances the connection strength between the limiting member 41 and the battery pack 10 and is easy to manufacture.

[0088] The fixing plate 421 is integrally formed with the battery replacement bracket 20. The connection strength between the fixing plate 421 and the battery replacement bracket 20 is effectively strengthened, and the processing and manufacturing are convenient.

[0089] There are multiple limiters 41 and fixings 42, and there is a one-to-one correspondence between the multiple limiters 41 and the multiple fixings 42. The multiple fixings 42 are located on the same side of the battery replacement bracket 20 as the vehicle-end electrical connector, and the multiple limiters 41 are located on the same side of the battery pack 10 as the battery-end electrical connector, and the multiple limiters 41 are respectively arranged at both ends of the battery-end electrical connector. The Y-axis limit mechanism 40 can enhance the stability of the connection between the battery-end electrical connector and the vehicle-end electrical connector, effectively avoiding the phenomenon of displacement and misalignment in the Y-axis 200 when the battery-end electrical connector and the vehicle-end electrical connector are connected, greatly improving the stability of the quick-change structure assembly.

[0090] It should be understood that in this embodiment, the battery-end electrical connector and the limit member 41 are both arranged at the front end of the battery pack 10, and the vehicle-end electrical connector and the fixing member 42 are both arranged at the front end of the battery swap bracket 20, wherein the front end refers to the end close to the front of the electric vehicle, and the rear end refers to the end close to the rear of the electric vehicle.

[0091] The quick-change structure assembly also includes a plurality of elastic limit assemblies 50, one end of each of which is respectively connected to the two sides of the battery pack 10 along the Y direction 200, and the other ends of each of which are against the inner wall surface of the battery swap bracket 20. The elastic limit assemblies 50 are installed on the two sides of the battery pack 10 along the Y direction 200 to clamp the battery pack 10 in the battery swap bracket 20. After the battery pack 10 is installed, the elastic limit assemblies 50 play a clamping role in the Y direction 200 of the battery swap bracket 20, so that the battery pack 10 can be clamped in the battery swap bracket 20 very reliably, further avoiding abnormal noise or wear caused by collision of the battery pack 10 in the Y direction 200 in the battery swap bracket 20, and greatly improving the safety performance and service life of the quick-change structure assembly.

[0092] The elastic limiting assembly 50 includes a mounting shell 51, a limiting portion 52 and an elastic component. The mounting shell 51 is fixed to the battery pack 10. The mounting shell 51 has an accommodating cavity 511 inside. The outer side of the mounting shell 51 is provided with a mounting opening 512 connected to the accommodating cavity 511. The limiting portion 52 is passed through the mounting opening 512, and the outer side of the limiting portion 52 extends outward from the mounting opening 512 along the Y direction 200 and abuts against the inner wall surface of the battery swap bracket 20. The elastic component acts on the inner side of the limiting portion 52 and transmits a variable force between the limiting portion 52 and the mounting shell 51 to provide a clamping force outward along the Y direction 200 to the battery swap bracket 20. The elastic component is used to ensure that the battery pack 10 can be clamped in the battery swap bracket 20 very reliably, and the structure is simple and easy to assemble.

[0093] The top of the outer side surface of the mounting shell 51 has a second guide surface 513. The second guide surface 513 extends obliquely inward along the thickness direction of the mounting shell 51 to the upper end surface of the mounting shell 51. The top of the outer side surface of the mounting shell 51 has a second guide surface 513. When the battery pack 10 is installed on the battery swap bracket 20, the battery pack 10 moves along the Z direction 300. The second guide surface 513 can better play a guiding role to ensure that the battery pack 10 is inserted into the battery swap bracket 20, and ensure that the elastic limit assembly 50 acts on the battery swap bracket 20.

[0094] The top of the limiting portion 52 extending out of the mounting opening 512 has a third guide surface 521. The third guide surface 521 extends obliquely inward along the thickness direction of the mounting shell 51. When the battery pack 10 is installed on the battery swap bracket 20, the top of the third guide surface 521 can better guide the battery pack 10 during the movement of the battery pack 10 along the Z direction 300 to ensure that the battery pack 10 is inserted into the battery swap bracket 20 and ensure that the elastic limiting component 50 acts on the battery swap bracket 20.

[0095] The quick-change structure assembly also includes a plurality of buckle limit assemblies 60, which include a battery pack buckle limiter 61 provided on the battery pack 10 and a bracket buckle limiter 62 provided on the battery-swap bracket 20. The battery pack buckle limiter 61 is clamped on the bracket buckle limiter 62 to limit the relative movement of the battery pack 10 in the battery-swap bracket 20 along the Y direction 200. The relative movement of the battery pack 10 in the battery-swap bracket 20 along the Y direction 200 is further limited by the buckle limiter 60, thereby reliably limiting the left and right displacement of the battery pack 10. Even when turning or running unevenly, the abnormal noise or wear caused by the collision between the battery pack 10 and the battery-swap bracket 20 in the Y direction 200 can be avoided, further improving the safety performance and service life of the quick-change structure assembly.

[0096] In this embodiment, there are two buckle limit assemblies 60, and two battery pack buckle limit members 61 are respectively arranged on both sides of the rear end of the battery pack 10, and two bracket buckle limit members 62 are respectively arranged on both sides of the rear end inside the battery swap bracket 20. The front end and rear end between the battery pack 10 and the battery swap bracket 20 are respectively positioned by the Y-axis limit mechanism 40 and the buckle limit assembly 60 to limit the front end and rear end of the battery pack 10 from relative movement along the Y-axis 200 inside the battery swap bracket 20. Among them, in order to limit the relative movement of the battery pack 10 along the Y direction 200 in the battery swap bracket 20, a Y-direction limiting mechanism 40 and a snap-on limiting assembly 60 are provided at both ends of the battery pack 10, and a plurality of elastic limiting assemblies 50 are provided at intervals on both sides of the battery pack 10 along the Y direction 200. The Y-direction limiting mechanism 40, the elastic limiting assembly 50 and the snap-on limiting assembly 60 simultaneously limit the relative movement of the battery pack 10 along the Y direction 200 in the battery swap bracket 20, thereby reliably limiting the left and right displacement of the battery pack 10. Even when turning or running non-steadily, abnormal noise or wear caused by collision between the battery pack 10 and the battery swap bracket 20 in the Y direction 200 can be avoided, further improving the safety performance and service life of the quick-change structure assembly.

[0097] A number of battery pack buckle limiters 61 are respectively fixed on both sides of the battery pack 10 along the Y direction 200, and a battery pack accommodating space 611 is provided between the battery pack buckle limiters 61 and the side surfaces of the battery pack 10; a number of bracket buckle limiters 62 correspond one-to-one to a number of battery pack buckle limiters 61, and the bracket buckle limiters 62 are fixed to the inner wall surface of the battery swap bracket 20, and a bracket accommodating space 621 is provided between the bracket buckle limiters 62 and the inner wall surface of the side wall of the battery swap bracket 20; the battery pack buckle limiter 61 is clamped in the bracket accommodating space 621, and the bracket buckle limiter 62 is clamped in the bracket accommodating space 621. After the locking component 30 is locked and fixed, the battery pack buckle limiter 61 is locked in the bracket accommodating space 621, and at the same time, the bracket buckle limiter 62 is locked in the bracket accommodating space 621; after the locking component 30 is disassembled and separated, the battery pack buckle limiter 61 is also separated from the bracket accommodating space 621, and at the same time, the bracket buckle limiter 62 is also separated from the bracket accommodating space 621. The structure is simple and easy to use.

[0098] This embodiment also discloses an electric vehicle, which includes the quick-change structure assembly as described above. The relative movement of the battery pack 10 in the battery exchange bracket 20 along the Y direction 200 is limited by the Y-direction limiting mechanism 40, thereby reliably limiting the left and right displacement of the battery pack 10, and even when turning or running unevenly, it can avoid abnormal noise or wear caused by collision between the battery pack 10 and the battery exchange bracket 20 in the Y direction 200, greatly improving the safety performance and service life of the electric vehicle.

[0099] Example 2

[0100] like Figure 7 and Figure 8 As shown, the same parts of the quick-change structure assembly structure of the second embodiment as those of the first embodiment will not be repeated, and only the differences will be described. In the present embodiment, the stopper 41 and the battery pack 10 are of a split structure, and the stopper 41 also includes a flange 412, one side of the flange 412 is connected to the battery pack 10, and the protrusion 411 is connected to the other side of the flange 412. The stopper 41 is connected to the battery pack 10 through the flange 412, wherein the flange 412 is detachably connected to the battery pack 10 through fasteners, and adjustment, maintenance and replacement are very convenient.

[0101] The fixing plate 421 and the battery-changing bracket 20 are of a split structure, and the fixing plate 421 is connected to the battery-changing bracket 20 through a fastener. Adjustment, maintenance and replacement of the fixing part 42 are very convenient.

[0102] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A quick-change structure assembly, comprising a battery pack, a battery-changing bracket and a plurality of locking components, wherein the plurality of locking components are used to lock the battery pack in the battery-changing bracket to limit the relative displacement of the battery pack in the battery-changing bracket along the X direction and the Z direction, characterized in that: The quick-change structure assembly also includes: At least one Y-direction limiting mechanism, the Y-direction limiting mechanism is used to limit the relative movement of the battery pack in the Y direction in the battery replacement bracket after the locking component is engaged and fixed; The Y-direction limiting mechanism includes a limiting member provided on the battery pack and a fixing member provided on the battery exchange bracket, wherein the limiting member is connected to the fixing member to limit the relative movement of the battery pack in the battery exchange bracket along the Y direction; The limiting member includes a protrusion, one end of the protrusion is connected to the battery pack, and the other end of the protrusion extends outward along the X direction; The fixing member includes a fixing plate, one side of the fixing plate is connected to the battery exchange bracket, and the other side of the fixing plate has an inwardly recessed limiting groove, and the protrusion is inserted into the limiting groove.

2. The quick-change structure assembly according to claim 1, characterized in that: The stopper also includes a flange portion, one side of the flange portion is connected to the battery pack, and the protrusion portion is connected to the other side of the flange portion; Alternatively, the limiting member and the battery pack are integrally formed.

3. The quick-change structure assembly according to claim 1, characterized in that: The limiting groove is in the shape of a trumpet; And / or, the fixing plate and the battery replacement bracket are integrally formed; Alternatively, the fixing plate is connected to the battery replacement bracket via fasteners.

4. The quick-change structure assembly according to claim 1, characterized in that: The shape of the protrusion is a column or a cone; And / or, one end of the protrusion facing the limiting groove has a first guide sliding surface; And / or, there are multiple limit members and multiple fixing members, and there is a one-to-one correspondence between the multiple limit members and the multiple fixing members, the multiple fixing members are all located on the same side of the battery exchange bracket as the vehicle-end electrical connector, the multiple limit members are all located on the same side of the battery pack as the battery-end electrical connector, and the multiple limit members are respectively arranged at both ends of the battery-end electrical connector.

5. The quick-change structure assembly according to claim 1, characterized in that: The quick-change structure assembly also includes a plurality of elastic limit components, one end of each of which is respectively connected to two sides of the battery pack along the Y direction, and the other ends of each of which is against the inner wall surface of the battery replacement bracket.

6. The quick-change structure assembly according to claim 5, characterized in that: The elastic limiting component comprises: A mounting shell, the mounting shell being fixedly mounted on the battery pack, the mounting shell having an accommodating cavity inside, and an outer side surface of the mounting shell being provided with a mounting opening communicating with the accommodating cavity; A limiting portion, wherein the limiting portion is disposed through the mounting opening, and an outer side surface of the limiting portion extends outward from the mounting opening along the Y direction and abuts against an inner wall surface of the battery replacement bracket; An elastic component acts on the inner side surface of the limiting portion and transmits a variable force between the limiting portion and the mounting shell, so as to provide a clamping force outward along the Y direction to the battery exchange bracket.

7. The quick-change structure assembly according to claim 6, characterized in that: The top of the outer side surface of the mounting shell is provided with a second guide sliding surface; And / or, the top of the limiting portion extending out of the installation opening has a third guide sliding surface.

8. The quick-change structure assembly according to claim 1, characterized in that: The quick-change structure assembly also includes a plurality of snap-in limit components, which include a battery pack snap-in limiter arranged on the battery pack and a bracket snap-in limiter arranged on the battery exchange bracket. The battery pack snap-in limiter is clamped on the bracket snap-in limiter to limit the relative movement of the battery pack upward along the Y direction in the battery exchange bracket.

9. The quick-change structure assembly according to claim 8, characterized in that: A plurality of the battery pack buckle limiters are respectively fixed on two sides of the battery pack along the Y direction, and a battery pack accommodating space is provided between the battery pack buckle limiters and the side surfaces of the battery pack; A plurality of the bracket buckle limiters correspond to a plurality of the battery pack buckle limiters one by one, and the bracket buckle limiters are fixed to the inner wall surface of the battery swap bracket, and a bracket accommodating space is provided between the bracket buckle limiters and the inner wall surface of the side wall of the battery swap bracket; The battery pack buckle limiter is clamped in the bracket accommodating space, and the bracket buckle limiter is clamped in the bracket accommodating space.

10. An electric vehicle, characterized in that: The quick-change structure assembly comprises the quick-change structure assembly as claimed in any one of claims 1 to 9.

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