CN112271388A - Two-way locking mechanism of battery pack for electric automobile battery replacement - Google Patents
Two-way locking mechanism of battery pack for electric automobile battery replacement Download PDFInfo
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- CN112271388A CN112271388A CN202011153943.XA CN202011153943A CN112271388A CN 112271388 A CN112271388 A CN 112271388A CN 202011153943 A CN202011153943 A CN 202011153943A CN 112271388 A CN112271388 A CN 112271388A
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 210000000078 claw Anatomy 0.000 claims description 9
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a bidirectional locking mechanism for a battery replacement pack of an electric automobile, which comprises a shell (10), a bolt (20), a locking base (30), a locking elastic piece (40), a locking push ring (50) and a baffle ring (60); wherein the shell (10) is hollow; a baffle ring (60), a locking push ring (50) and a locking base (30) are sequentially arranged in the inner cavity of the shell (10) from bottom to top; a locking elastic piece (40) is arranged between the inner side of the locking push ring (50) and the inner side of the locking base (30); wherein, the top opening of the shell (10) is provided with a bolt mounting hole (11); the side wall of the inner cavity of the shell (10) is provided with a base internal thread (12) and a baffle ring internal thread (13) in a surrounding manner; the battery pack locking mechanism can realize quick locking from a structural layer, meets the locking reliability of the locking mechanism, ensures the installation reliability of the battery pack, and has great production practice significance.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a bidirectional locking mechanism for a battery replacement pack of an electric automobile.
Background
At present, in order to facilitate the use of electric vehicles, a battery replacement mode (that is, the endurance mileage is extended by replacing a battery pack which is fully charged in advance) is popularized and applied, and the development trend of vehicle-electricity separation is prominent under the strong support of the country and the place.
The electric automobile adopts the battery replacement mode, so that the centralized monitoring and management of the battery are facilitated, the safety of the battery is improved, the charging and mileage anxiety of the user on the new energy automobile are relieved, and the new energy market is developed.
The electric automobile adopts a battery replacement mode, the battery replacement is required to be carried out quickly, and the quick battery replacement is to realize quick locking of a structural layer, quick plug of an electric connection layer and BMS (battery management system) identification judgment and control of a software layer.
Wherein, at the structural level, the battery package fixed mode that current mode of changing electricity adopted includes buckle formula locking mechanism and screw thread formula locking mechanism two kinds, and not only the structure is complicated, and the reliability exists not enoughly, and the locking direction is single moreover, can only satisfy the locking of unidirectional directions such as axial or radial usually.
Disclosure of Invention
The invention aims to provide a bidirectional locking mechanism for a battery replacement pack of an electric automobile, aiming at the technical defects in the prior art.
Therefore, the invention provides a bidirectional locking mechanism for a battery changing pack of an electric automobile, which comprises a shell, a bolt, a locking base, a locking elastic piece, a locking push ring and a retaining ring, wherein the locking base is fixed on the shell;
wherein the shell is hollow;
the inner cavity of the shell is sequentially provided with a baffle ring, a locking push ring and a locking base from bottom to top;
a locking elastic piece is arranged between the inner side of the locking push ring and the inner side of the locking base;
wherein, the top opening of the shell is provided with a bolt mounting hole;
the side wall of the inner cavity of the shell is provided with a base internal thread and a baffle ring internal thread in a surrounding manner;
the base internal thread is positioned above the baffle ring internal thread;
the bolt is sequentially provided with a guide part, a threaded part, a limiting table, a locking groove end face, a locking groove peripheral surface and a clamping groove from top to bottom;
the end surface of the locking groove is positioned at the top of the circumferential surface of the locking groove;
the clamping groove is positioned at the bottom of the bolt, and the left side, the right side and the bottom of the clamping groove are both provided with openings;
the locking base is provided with a base through hole which is communicated up and down;
the peripheral outer walls of the upper part and the lower part of the locking base are respectively provided with a fixed external thread and a limiting external thread;
the locking base is provided with a limiting step at a position between the fixed external thread and the limiting external thread;
a circle of locking inclined plane is arranged at the lower side of the central through hole of the locking base;
the locking base is provided with a fixed external thread, and the fixed external thread is in threaded connection with the base internal thread on the shell;
the locking elastic piece is provided with an elastic piece through hole which is communicated up and down;
the locking elastic piece comprises an annular mounting part and a plurality of elastic claws;
a plurality of elastic claws arranged at the top of the mounting part at equal intervals;
the outer side of each elastic claw is sequentially provided with an axial locking surface, a radial locking section and an elastic inclined surface from top to bottom;
the locking push ring is provided with a push ring through hole which is communicated up and down;
the inner wall of the periphery of the push ring through hole is provided with a limiting internal thread;
a circle of mounting groove is arranged at the lower part of the push ring through hole in a surrounding manner;
the locking push ring is provided with a spline with a central hole at the central position of the bottom;
the mounting groove is an annular groove;
wherein, the outer wall of the periphery of the baffle ring is provided with an external thread of the baffle ring;
the baffle ring is provided with a baffle ring through hole which is communicated up and down;
a circle of baffle ring steps are arranged at the lower part of the baffle ring through hole in a surrounding manner;
four U-shaped grooves with downward openings are formed in the lower part of the peripheral outer wall of the baffle ring at equal intervals;
the baffle ring external thread on the baffle ring is connected with the baffle ring internal thread on the shell;
the retaining ring step is contacted with the peripheral edge of the bottom of the locking push ring;
the screw thread part at the upper part of the bolt upwards penetrates through the bolt mounting hole on the shell;
the limiting table at the upper part of the bolt is contacted with the inner side of the top of the shell;
the middle lower part of the bolt sequentially and vertically penetrates through the base through hole, the elastic part through hole, the push ring through hole and the baffle ring through hole from top to bottom.
Preferably, the bottom of the limiting step on the locking base is in contact with the top of the locking push ring.
Preferably, the inclination angle of the locking ramp is a;
the inclination angle of the elastic inclined plane is b;
the inclination angle b of the elastic inclined surface is larger than the inclination angle a of the locking inclined surface.
Preferably, the four U-shaped grooves are symmetrically distributed in a cross shape.
Preferably, the mounting part on the locking elastic piece is mounted in the mounting groove of the locking push ring;
the limiting inner threads on the locking push ring are in threaded connection with the limiting outer threads on the locking base;
the elastic inclined plane of locking elastic component contacts with the locking inclined plane on the locking base.
Preferably, when locking, the axial locking surface of the locking elastic piece is abutted with the end surface of the locking groove on the bolt;
the radial locking section of the locking elastic piece is tightly held with the circumferential surface of the locking groove on the bolt.
Compared with the prior art, the bidirectional locking mechanism for the battery pack of the electric automobile can realize quick locking from a structural layer, meets the locking reliability of the locking mechanism, ensures the installation reliability of the battery pack, and has great production practice significance.
According to the invention, the used locking elastic piece deforms under the limitation of the locking inclined plane on the locking base, finally, the axial locking surface of the locking elastic piece is abutted against the end surface of the locking groove on the bolt, and the radial locking section of the locking elastic piece is tightly held with the circumferential surface of the locking groove on the bolt, so that the bolt can be jointly locked in the axial direction and the radial direction.
Drawings
Fig. 1 is a schematic cross-sectional view of a bidirectional locking mechanism for a battery replacement pack of an electric vehicle according to the present invention;
fig. 2 is a schematic perspective exploded view of a bidirectional locking mechanism for a battery replacement pack of an electric vehicle according to the present invention;
fig. 3 is a schematic perspective view of a bolt in a bidirectional locking mechanism for a battery replacement pack of an electric vehicle according to the present invention;
fig. 4 is a schematic perspective view of a locking base in the bidirectional locking mechanism for the battery replacement pack of the electric vehicle, provided by the invention;
fig. 5 is a schematic perspective view of a locking elastic member in a bidirectional locking mechanism for a battery replacement pack of an electric vehicle according to the present invention;
fig. 6 is a schematic perspective view of a locking push ring in a bidirectional locking mechanism for a battery replacement pack of an electric vehicle according to the present invention;
fig. 7 is a schematic perspective view of a baffle ring in a bidirectional locking mechanism for a battery replacement pack of an electric vehicle according to the present invention;
in the figure, 10 is a housing; 11 is a bolt mounting hole; 12 is a base internal thread; 13 blocking ring internal threads;
20 is a bolt; 21 is a guide part; 22 is a threaded part; 23 is the circumferential surface of the locking groove; 24 is a locking groove end face; 25 is a clamping groove;
30 is a locking base; 31 is a fixed external thread; 32 is a limit step; 33 is a limit external thread; 34 is a locking inclined plane;
40 is a locking elastic piece; 41 is an axial locking surface; 42 is a radial locking section; 43 is an elastic slope; 44 is a mounting part;
50 is a locking push ring; 51 is a limit internal thread; 52 is a mounting groove; 53 is a spline;
60 is a baffle ring; 61 is a stop ring external thread; 62 is a baffle ring step; 63 is a U-shaped groove.
Detailed Description
In order to make the technical means for realizing the invention easier to understand, the following detailed description of the present application is made in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
In addition, it should be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the term "mounted" and the like should be interpreted broadly, and may be, for example, either fixedly mounted or detachably mounted.
The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.
Referring to fig. 1 to 6, the invention provides a bidirectional locking mechanism for a battery replacement pack of an electric vehicle, which comprises a housing 10, a bolt 20, a locking base 30, a locking elastic piece 40, a locking push ring 50 and a baffle ring 60;
wherein, the inside of the shell 10 is hollow;
the inner cavity of the shell 10 is sequentially provided with a baffle ring 60, a locking push ring 50 and a locking base 30 from bottom to top;
a locking elastic piece 40 is arranged between the inner side of the locking push ring 50 and the inner side of the locking base 30;
wherein, the inside of the shell 10 is hollow;
a bolt mounting hole 11 is formed in the top opening of the shell 10;
the side wall of the inner cavity of the shell 10 is provided with a base internal thread 12 and a baffle ring internal thread 13 in a surrounding way;
the base internal thread 12 is positioned above the baffle ring internal thread 13;
the bolt 20 is provided with a guide part 21, a thread part 22, a limit table 26, a locking groove end face 24, a locking groove peripheral face 23 and a clamping groove 25 in sequence from top to bottom;
the locking groove end surface 24 is positioned at the top of the locking groove peripheral surface 23;
a clamping groove 25 which is positioned at the bottom of the bolt 20 and is opened at the left side, the right side and the bottom;
wherein, the locking base 30 has a base through hole 300 which is through up and down;
the peripheral outer walls of the upper part and the lower part of the locking base 30 are respectively provided with a fixed external thread 31 and a limiting external thread 33;
the locking base 30 is provided with a limit step 32 at a position between the fixed external thread 31 and the limit external thread 33;
a circle of locking inclined planes 34 are arranged at the lower side of the central through hole of the locking base 30;
in particular, a fixed external thread 31 on the locking base 30 is in threaded connection with a base internal thread 12 on the shell 10;
wherein, the locking elastic piece 40 is provided with an elastic piece through hole 400 which is penetrated up and down;
the locking elastic member 40 includes an annular mounting portion 44 and a plurality of elastic claws 401;
a plurality of elastic claws 401 arranged at equal intervals on the top of the mounting portion 44;
the outer side of each elastic claw 401 is provided with an axial locking surface 41, a radial locking section 42 and an elastic inclined surface 43 from top to bottom;
wherein, the locking push ring 50 is provided with a push ring through hole 500 which is vertically through;
the inner wall of the periphery of the push ring through hole 50 is provided with a limiting internal thread 51;
a circle of mounting grooves 52 are arranged at the lower part of the push ring through hole 50 in a surrounding manner;
the locking push ring 50 is provided with a spline 53 with a central opening at the bottom center;
the mounting groove 52 is an annular groove;
wherein, the outer wall of the periphery of the baffle ring 60 is provided with baffle ring external threads 61;
the retainer ring 60 has a retainer ring through hole 600 penetrating up and down;
a ring of baffle ring steps 62 are arranged at the lower part of the baffle ring through hole 600 in a surrounding manner;
four U-shaped grooves 63 which are opened downwards are arranged at equal intervals at the lower part of the peripheral outer wall of the baffle ring 60;
the stop ring external thread 61 on the stop ring 60 is connected with the stop ring internal thread 13 on the shell 10;
a stopper ring step 62 contacting the bottom peripheral edge of the locking push ring 50;
in concrete implementation, a thread part 22 at the upper part of the bolt 20 penetrates through the bolt mounting hole 11 on the shell 10 upwards;
a limit stand 26 on the upper portion of the bolt 20, which contacts the inner side of the top of the housing 10;
the middle-lower portion of the bolt 20 sequentially penetrates through the base through hole 300, the elastic member through hole 400, the push ring through hole 500 and the stopper ring through hole 600 from top to bottom.
In the present invention, in a specific implementation, the bottom of the limit step 32 on the locking base 30 is in contact with the top of the locking push ring 50.
In the present invention, in a specific implementation, the inclined angle of the locking inclined surface 34 is a;
the inclination angle of the elastic slope 43 is b;
the inclination angle b of the elastic slope 43 is larger than the inclination angle a of the locking slope 34.
It should be noted that with the present invention, the retainer ring step 62 is used to limit the lock thrust ring 50 from falling out during unlocking.
In the present invention, in a specific implementation, the four U-shaped grooves 63 are symmetrically distributed in a cross shape.
In the present invention, in a specific implementation, the mounting portion 44 of the locking elastic member 40 is mounted in the mounting groove 52 of the locking push ring 50;
the limiting internal thread 51 on the locking push ring 50 is in threaded connection with the limiting external thread 33 on the locking base 30;
the elastic slope 43 of the locking elastic member 40 contacts the locking slope 34 of the locking base 30.
In the present invention, in a specific implementation, when locking, the axial locking surface 41 of the locking elastic member 40 is abutted against the locking groove end surface 24 on the bolt 20;
the radial locking section 42 of the locking spring 40 grips the locking groove circumference 23 on the bolt 20.
In order to more clearly understand the technical solution of the present invention, the following describes the working principle of the present invention.
It should be noted that, with the present invention, the housing 10 can be used as a box lifting lug portion of a battery pack, the threaded portion 22 of the bolt 20 penetrates into the bolt mounting hole 11 in the housing 10 from bottom to top, the fixing external thread 31 on the locking base 30 is in threaded connection with the base internal thread 12 of the housing 10, the mounting portion 44 on the locking elastic member 40 is mounted in the mounting groove 52 of the locking push ring 50, the limiting internal thread 51 on the locking push ring 50 is in threaded connection with the limiting external thread 33 on the locking base 30, the locking elastic member 40 deforms under the limitation of the locking inclined surface 34 on the locking base 30 (because the elastic inclined surface 43 of the locking elastic member 40 is in contact with the locking inclined surface 34 on the locking base 30), finally, the axial locking surface 41 of the locking elastic member 40 abuts against the locking groove end surface 24 on the bolt 20, the radial locking section 42 of the locking elastic member 40 abuts against the locking groove peripheral surface 23 on, the bolt 20 is locked together in both the axial and radial directions.
According to the invention, when locking, the locking push ring 50 rotates and moves upwards to drive the locking elastic member 40 to move upwards, the locking elastic member 40 deforms under the limitation of the locking inclined surface 34 on the locking base 30, finally, the axial locking surface 41 of the locking elastic member 40 is abutted against the locking groove end surface 24 on the bolt, and the radial locking section 42 of the locking elastic member 40 is clasped with the locking groove peripheral surface 23 on the bolt 20, so that the axial and radial bidirectional locking of the bolt 20 is realized.
It should be noted that, when locking, the locking and pushing ring 50 rotates the spline 53 by an external special tool (a conventional tool for fixing the connecting spline 53), so that the locking and pushing ring 50 is rotated and moved upward.
In the invention, the bolt function 20 is to hoist the power battery pack on the whole electric automobile. The guide part 21 on the upper part of the bolt 20 is convenient to mount, and the thread part 22 is in threaded connection with a mounting frame (provided with a reserved threaded hole) on the whole vehicle end of the existing electric vehicle, so that the battery pack is hoisted finally.
In the present invention, the locking groove 25 at the lower portion of the bolt 20 is used when an external wrench is used to screw the bolt 20.
In the present invention, the U-shaped groove 63 at the lower portion of the retainer ring 60 is used when an external wrench is used to screw the retainer ring 60.
Therefore, the invention has the advantages of few integral parts, scientific structure and reliable looseness prevention.
It should be noted that, with the present invention, it is possible to satisfy both the locking reliability and the unlocking convenience of the locking mechanism.
It should be noted that the housing 10 may be used as a lifting lug portion of a case, and the locking mechanism of the present invention is a component of a battery pack, and if the housing 10 is used as a lifting lug portion of a case of a battery pack, the housing 10 is fixedly connected to the case of the battery pack, for example, the peripheral edge of the top of the case.
For the invention, when the locking mechanism of the invention is used to lock the power battery pack on the whole electric vehicle (specifically, the mounting rack thereon), the bolt 20 sequentially passes through a mounting rack lifting lug part (not shown) of the battery pack, specifically, the shell 10 fixedly connected with a battery pack box body can be directly used as a lifting lug part, or the shell is fixedly connected with a lifting lug which is fixedly connected with a battery pack box body) and the mounting rack (not shown) on the whole vehicle, and the locking base 30 and the baffle ring 60 can be fixed on the mounting rack lifting lug part of the battery pack, and the thread part 22 of the bolt is in threaded connection with a supporting plate (with a reserved threaded hole) on the mounting rack on the vehicle body, so that the mounting rack at the battery pack and the mounting rack on the whole vehicle are clamped and fixed, and the fixing of the battery pack on the whole vehicle.
For the present invention, when locking, the locking thrust ring 50 is rotated clockwise by a special tool to drive the locking elastic member 40 to move upwards, the locking elastic member 40 deforms under the restriction of the locking inclined surface 34 on the locking base 30, finally, the axial locking surface 41 of the locking elastic member 40 collides with the locking groove end surface 24 on the bolt, and the radial locking section 42 of the locking elastic member 40 embraces the locking groove peripheral surface 23 on the bolt 20, thereby realizing the axial and radial bidirectional locking of the bolt 20.
For the invention, when unlocking, the locking thrust ring 50 is rotated anticlockwise by a special tool, so that the locking elastic piece 40 is loosened from the bolt, unlocking is realized, and further, the bolt 20 can be rotated by a further tool, so that the threaded part 22 of the bolt is not screwed with a supporting plate (provided with a reserved threaded hole) on the mounting frame at the vehicle body, and the battery pack is separated from the whole vehicle.
Compared with the prior art, the bidirectional locking mechanism for the battery pack of the electric automobile can realize quick locking from the structural layer, meets the locking reliability of the locking mechanism, ensures the installation reliability of the battery pack, and has great production practice significance.
According to the invention, the used locking elastic piece deforms under the limitation of the locking inclined plane on the locking base, finally, the axial locking surface of the locking elastic piece is abutted against the end surface of the locking groove on the bolt, and the radial locking section of the locking elastic piece is tightly held with the circumferential surface of the locking groove on the bolt, so that the bolt can be jointly locked in the axial direction and the radial direction.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A bidirectional locking mechanism for a battery replacement pack of an electric automobile is characterized by comprising a shell (10), a bolt (20), a locking base (30), a locking elastic piece (40), a locking push ring (50) and a retaining ring (60);
wherein the shell (10) is hollow;
a baffle ring (60), a locking push ring (50) and a locking base (30) are sequentially arranged in the inner cavity of the shell (10) from bottom to top;
a locking elastic piece (40) is arranged between the inner side of the locking push ring (50) and the inner side of the locking base (30);
wherein, the top opening of the shell (10) is provided with a bolt mounting hole (11);
the side wall of the inner cavity of the shell (10) is provided with a base internal thread (12) and a baffle ring internal thread (13) in a surrounding manner;
the base internal thread (12) is positioned above the baffle ring internal thread (13);
the bolt (20) is sequentially provided with a guide part (21), a threaded part (22), a limiting table (26), a locking groove end face (24), a locking groove peripheral surface (23) and a clamping groove (25) from top to bottom;
the end surface (24) of the locking groove is positioned at the top of the circumferential surface (23) of the locking groove;
the clamping groove (25) is positioned at the bottom of the bolt (20), and the left side, the right side and the bottom of the clamping groove are both opened;
wherein, the locking base (30) is provided with a base through hole (300) which is penetrated up and down;
the peripheral outer walls of the upper part and the lower part of the locking base (30) are respectively provided with a fixed external thread (31) and a limiting external thread (33);
the locking base (30) is provided with a limit step (32) at a position between the fixed external thread (31) and the limit external thread (33);
a circle of locking inclined plane (34) is arranged at the lower side of the central through hole of the locking base (30);
wherein, a fixed external thread (31) on the locking base (30) is in threaded connection with a base internal thread (12) on the shell (10);
wherein, the locking elastic piece (40) is provided with an elastic piece through hole (400) which is penetrated up and down;
the locking elastic piece (40) comprises an annular mounting part (44) and a plurality of elastic claws (401);
a plurality of elastic claws (401) arranged at equal intervals on the top of the mounting portion (44);
the outer side of each elastic claw (401) is provided with an axial locking surface (41), a radial locking section (42) and an elastic inclined surface (43) from top to bottom in sequence;
wherein, the locking push ring (50) is provided with a push ring through hole (500) which is penetrated up and down;
the inner wall of the periphery of the push ring through hole (50) is provided with a limiting internal thread (51);
a circle of mounting groove (52) is arranged at the lower part of the push ring through hole (50) in a surrounding way;
the bottom center of the locking push ring (50) is provided with a spline (53) with a central hole;
the mounting groove (52) is an annular groove;
wherein, the outer wall of the periphery of the baffle ring (60) is provided with baffle ring external threads (61);
the baffle ring (60) is provided with a baffle ring through hole (600) which is communicated up and down;
a circle of baffle ring steps (62) are arranged at the lower part of the baffle ring through hole (600) in a surrounding way;
four U-shaped grooves (63) with downward openings are formed in the lower part of the peripheral outer wall of the baffle ring (60) at equal intervals;
the stop ring external thread (61) on the stop ring (60) is connected with the stop ring internal thread (13) on the shell (10);
a retaining ring step (62) which is in contact with the peripheral edge of the bottom of the locking push ring (50);
wherein, the screw thread part (22) at the upper part of the bolt (20) upwards penetrates through the bolt mounting hole (11) on the shell (10);
a limit table (26) at the upper part of the bolt (20) is contacted with the inner side of the top of the shell (10);
the middle lower part of the bolt (20) sequentially and vertically penetrates through the base through hole (300), the elastic part through hole (400), the push ring through hole (500) and the baffle ring through hole (600) from top to bottom.
2. The bidirectional locking mechanism for the battery replacement pack of the electric automobile as claimed in claim 1, wherein the bottom of the limiting step (32) on the locking base (30) is in contact with the top of the locking push ring (50).
3. The bidirectional locking mechanism for the battery replacement pack of the electric automobile as claimed in claim 1, wherein the locking inclined plane (34) has an inclination angle a;
the inclination angle of the elastic inclined plane (43) is b;
the inclination angle b of the elastic slope (43) is larger than the inclination angle a of the locking slope (34).
4. The bidirectional locking mechanism for the battery replacement pack of the electric automobile as claimed in claim 1, wherein the four U-shaped grooves (63) are symmetrically distributed in a cross shape.
5. The bidirectional locking mechanism for the battery replacement pack of the electric automobile as claimed in claim 1, wherein the mounting portion (44) on the locking elastic member (40) is mounted in the mounting groove (52) of the locking push ring (50);
a limiting internal thread (51) on the locking push ring (50) is in threaded connection with a limiting external thread (33) on the locking base (30);
the elastic inclined surface (43) of the locking elastic piece (40) is contacted with the locking inclined surface (34) on the locking base (30).
6. The bidirectional locking mechanism for the battery replacement pack of the electric automobile as claimed in any one of claims 1 to 5, wherein when locking, the axial locking surface (41) of the locking elastic piece (40) is abutted with the locking groove end surface (24) on the bolt (20);
the radial locking section (42) of the locking elastic piece (40) is tightly held with the locking groove peripheral surface (23) on the bolt (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011153943.XA CN112271388B (en) | 2020-10-26 | 2020-10-26 | Bidirectional locking mechanism for battery pack of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011153943.XA CN112271388B (en) | 2020-10-26 | 2020-10-26 | Bidirectional locking mechanism for battery pack of electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112271388A true CN112271388A (en) | 2021-01-26 |
| CN112271388B CN112271388B (en) | 2023-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011153943.XA Active CN112271388B (en) | 2020-10-26 | 2020-10-26 | Bidirectional locking mechanism for battery pack of electric automobile |
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| CN (1) | CN112271388B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115284951A (en) * | 2021-11-30 | 2022-11-04 | 奥动新能源汽车科技有限公司 | Hanging seat, hanging assembly, hanging device, battery replacing bag and electric automobile |
| CN116093530A (en) * | 2023-04-12 | 2023-05-09 | 中国第一汽车股份有限公司 | Locking mechanism and vehicle |
| CN116315401A (en) * | 2023-05-18 | 2023-06-23 | 北京玖行智研交通科技有限公司 | Anti-impact locking assembly of battery box for battery replacement |
| WO2024041203A1 (en) * | 2022-08-24 | 2024-02-29 | 蔚来汽车科技(安徽)有限公司 | Lock body assembly, battery pack, locking mechanism and vehicle |
| WO2024140604A1 (en) * | 2022-12-30 | 2024-07-04 | 奥动新能源汽车科技有限公司 | Locking mechanism, locking device, battery pack and electric vehicle |
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| CN116093530A (en) * | 2023-04-12 | 2023-05-09 | 中国第一汽车股份有限公司 | Locking mechanism and vehicle |
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| CN116315401B (en) * | 2023-05-18 | 2023-08-29 | 北京玖行智研交通科技有限公司 | Anti-impact locking assembly of battery box for battery replacement |
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