CN112652849B - Battery shock absorber of new energy automobile - Google Patents
Battery shock absorber of new energy automobile Download PDFInfo
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- CN112652849B CN112652849B CN202011486754.4A CN202011486754A CN112652849B CN 112652849 B CN112652849 B CN 112652849B CN 202011486754 A CN202011486754 A CN 202011486754A CN 112652849 B CN112652849 B CN 112652849B
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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
Abstract
The invention discloses a battery shock absorbing device of a new energy automobile, which comprises: the first connecting frame is of a box-shaped shell structure with an open lower end, and an accommodating cavity for accommodating the battery pack is formed in the first connecting frame; the lower end edge of the first connecting frame extends outwards to form a first extension part, and the first extension part is provided with two pairs of opposite first screw holes and first through holes; the second connecting frame is of a plate-shaped structure, a holding surface for holding the battery pack is formed in the middle of the upper end face of the second connecting frame, and a third screw hole and a second through hole are formed in the second connecting frame corresponding to the first screw hole and the first through hole of the first connecting frame; the first bolts are in one-to-one correspondence with the first screw holes and are used for locking and mounting the second connecting frame on the lower end face of the first connecting frame; the second bolts are in one-to-one correspondence with the second screw holes and are used for locking and fixing the first connecting frame on the automobile frame; two pairs of buffer mechanism, with four sides one-to-one cooperation of group battery, this scheme implementation is reliable, dismantles convenient and shock resistance is good.
Description
Technical Field
The invention relates to the technical field of battery pack installation of new energy automobiles, in particular to a battery shock absorber of a new energy automobile.
Background
The new energy automobile is regarded as the type of the existing hot automobile, the endurance of the battery pack is always questioned by wide consumers, so that a plurality of new energy automobile manufacturers push out the quick power-changing service of the battery pack capable of being replaced immediately, however, because the traditional battery pack fixing scheme is to directly and integrally fix the battery pack on a frame, the battery pack mounting structure has the limitation of inconvenient automatic disassembly due to the matching of a buffer mechanism, a heat dissipation mechanism and the like, the service life of the battery pack is directly influenced by the shock-absorbing effect of the battery pack, and even the safe driving of the automobile is influenced, and the shock-absorbing buffer device for researching and developing the quick-dismantling type battery pack and adapting the shock-absorbing buffer device has positive practical significance.
Disclosure of Invention
Aiming at the situation of the prior art, the invention aims to provide the battery shock absorbing device of the new energy automobile, which is convenient to assemble and disassemble, reliable to implement and good in shock absorbing effect.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a battery shock absorbing device of a new energy automobile comprises:
the first connecting frame is of a box-shaped shell structure with an open lower end, an accommodating cavity for accommodating the battery pack is formed in the first connecting frame, and a buffer gap is formed between the side surface of the battery pack and the inner wall of the accommodating cavity close to the side surface of the battery pack when the battery pack is accommodated in the accommodating cavity; the lower end edge of the first connecting frame extends outwards to form a first extending part, two pairs of first screw holes opposite to each other are formed in corners of the first extending part, a first through hole is formed in the middle position of the first extending part, which corresponds to the position between the pair of first screw holes, a plurality of second screw holes are formed in the top wall edge of the accommodating cavity, and the second screw holes are used for locking and installing the first connecting frame on an automobile frame;
the second connecting frame is of a plate-shaped structure, the edge outline of the second connecting frame is matched with the lower end face of the first connecting frame, a supporting face for supporting the battery pack is formed in the middle of the upper end face of the second connecting frame, third screw holes which are in one-to-one correspondence with the first screw holes are formed in the second connecting frame, and second through holes which are in one-to-one correspondence with the first through holes are formed in the second connecting frame, corresponding to the first through holes in the first connecting frame;
the first bolts are in one-to-one correspondence with the first screw holes, the screw ends of the first bolts sequentially penetrate through the third screw holes and the first screw holes, and the second connecting frame is locked and mounted on the lower end face of the first connecting frame;
the second bolts are in one-to-one correspondence with the second screw holes, and the screw rod ends of the second bolts penetrate through the second screw holes to lock and fix the first connecting frame on the automobile frame;
two pairs of buffer gear, with four sides one-to-one cooperation of group battery, buffer gear include:
the buffer plate is arranged in a buffer gap formed between the battery pack and the accommodating cavity;
at least a pair of buffer spring, the level sets up side by side between the holding intracavity wall that the buffer board is close with the buffer board, and buffer spring's one end is fixed with the vertical well upper position of buffer board, its other end and the holding intracavity wall fixed connection who corresponds.
As one possible implementation manner, the buffer mechanism further includes:
one end of the connecting rope is fixedly connected with the center of the end face, close to the inner wall of the accommodating cavity, of the buffer plate, a penetrating hole for leading out the connecting rope is formed in the center of the inner wall corresponding to the accommodating cavity, and the other end of the connecting rope penetrates out of the penetrating hole and extends out of the accommodating cavity and is positioned above one of the first through holes;
the first connecting sleeve is vertically fixed on the outer wall of the first connecting frame below the penetrating hole;
the sliding sleeve can vertically slide and is arranged in the first connecting sleeve in a penetrating manner, the upper end of the sliding sleeve is of a closed structure and is fixedly connected with the other end of the connecting rope, the inner wall of the sliding sleeve is provided with a first internal thread, a guide groove for lifting the sliding sleeve is vertically arranged in the first connecting sleeve, and a guide block is arranged on the outer wall of the sliding sleeve corresponding to the guide groove;
lifting bolt, its middle part is polished rod portion, lifting bolt keeps away from the screw rod end of its head and is equipped with the first external screw thread with first internal screw thread adaptation, lifting bolt's screw rod end passes the second through-hole of second link, behind the first through-hole of first link in proper order from bottom to top, with slip cap threaded connection, and by lifting bolt's rotation, drive slip cap and go up and down in first link, make the connecting rope take up, make the buffer board remove or make the connecting rope loosen along the direction of keeping away from the group battery, the buffer board receives buffer spring elasticity and removes and paste with the group battery side along being close the group battery direction.
As a preferred alternative implementation mode, preferably, the polished rod portion of the lifting bolt is further sleeved with a constraint sleeve, the constraint sleeve is fixed on the polished rod portion of the lifting bolt in a constraint manner through a first bolt, the polished rod portion of the lifting bolt is further sleeved with a connecting spring, one end of the connecting spring abuts against the upper end face of the first extension portion, the other end of the connecting spring abuts against the lower end face of the constraint sleeve, and the head of the lifting bolt is pressed on the lower end face of the first extension portion.
As a preferred alternative embodiment, preferably, the upper end of the first connecting sleeve is rotatably connected with a guide pulley through a rotating shaft, and the other end of the connecting rope is fixedly connected with the sliding sleeve after bypassing the upper edge of the guide pulley.
As a preferred alternative implementation mode, preferably, the buffer springs are two pairs, and are horizontally and equidistantly arranged between the buffer plates and the inner wall of the accommodating cavity corresponding to the buffer plates in parallel, wherein the buffer springs are positioned above the connecting ropes, and the difference between the axial centers of the buffer springs and the height of the connecting ropes is 3-5 cm.
As a preferred alternative embodiment, the buffer plate is a copper plate with a thickness of 3-8 mm, and the upper end surface of the battery pack supported on the second connecting frame is higher than the upper end surface of the buffer plate when the second connecting frame is locked and mounted on the lower end surface of the first connecting frame.
As a possible implementation manner, the threads on the first bolt and the second bolt are pipe threads.
As one possible implementation manner, further, the first screw hole corresponding to the upper end surface of the first extension part is provided with a locking mechanism corresponding to the first screw hole one by one, and the locking mechanism includes:
the second connecting sleeve is of a cylindrical structure with an open lower end, the lower end of the second connecting sleeve is fixed at the upper end of the first screw hole, and the first screw hole is covered in the second connecting sleeve;
the locknut is a hexagon nut, and the corresponding section of the second connecting sleeve is of a hexagonal structure which is matched with the contour of the locknut;
the anti-loose spring is arranged in the second connecting sleeve, one end of the anti-loose spring is propped against the anti-loose nut, and the other end of the anti-loose spring is propped against the upper end face of the first extension part;
the tail end of the screw rod end of the first bolt is provided with a sub-screw rod part coaxial with the screw rod end of the first bolt, the outer diameter of the sub-screw rod part is smaller than the outer diameter of the screw rod of the first bolt, the outer periphery side of the sub-screw rod part is provided with a second external screw thread which is matched with the screw thread of the locknut, the screw pitch of the second external screw thread is 1.2-1.5 times of the screw pitch on the screw rod end of the first bolt, the total length of the screw rod end of the first bolt and the sub-screw rod part is larger than the sum of the first screw hole stroke, the second screw hole stroke and the height of the locknut propped by the lockspring, and the total length of the locknut propped by the locknut is smaller than the sum of the lengths of the first screw hole stroke, the second screw hole stroke and the second connecting sleeve.
As a preferred alternative implementation manner, preferably, the lower end surface of the second connecting frame is provided with a mounting sink corresponding to the third screw hole, and when the first bolt locks and fixes the first connecting frame and the second connecting frame, the bottom of the first bolt is not higher than the mounting sink downwards.
A new energy automobile comprises the battery shock absorbing device of the new energy automobile.
By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that: this scheme is based on the application scenario that needs frequent dismouting group battery, through cooperating buffer board, buffer spring, connecting rope, first adapter sleeve, sliding sleeve and lifting bolt, when need dismantling the group battery, pulling buffer board and group battery separation, and guarantee that the buffer board does not deviate from first link, and the first bolt of lock attaching the connection between first link and the second link cooperates through locking mechanism, the durability and the lock attaching reliability of first bolt have been improved greatly, make this scheme device still can keep better assembly reliability and shock-absorbing performance in the long-term frequent group battery in-process of dismantling.
Drawings
The invention will be further elucidated with reference to the drawings and the detailed description below:
FIG. 1 is a schematic bottom view of a first connecting frame with a second connecting frame removed;
FIG. 2 is a schematic view in section at A-A of FIG. 1, wherein the damping plate of the damping mechanism is not in section;
FIG. 3 is an enlarged schematic view of a partial structure at A in FIG. 2;
FIG. 4 is a schematic top view of a second connector of the present invention, wherein the upper end of the second connector supports a battery pack;
FIG. 5 is a schematic partial cutaway view of the first extension of the first connector frame and the second connector frame of the present invention in connection engagement;
FIG. 6 is an enlarged schematic view of a partial structure at B in FIG. 5;
FIG. 7 is a schematic view of the other mating state of FIG. 6;
FIG. 8 is a schematic external view of the device of the present invention when mounted at the lower end of the frame;
fig. 9 is a schematic view of a schematic flow of the battery pack disassembly process performed by the device according to the present invention.
Detailed Description
As shown in one of fig. 1 to 9, a battery shock absorbing device for a new energy automobile according to the present invention includes:
the first connecting frame 1 is a box-shaped shell structure with an open lower end, an accommodating cavity 11 for accommodating the battery pack 2 is formed in the first connecting frame, and a buffer gap 12 is formed between the side surface of the battery pack 2 and the inner wall of the accommodating cavity 11 close to the side surface when the battery pack 2 is accommodated in the accommodating cavity 11; the lower end edge of the first connecting frame 1 extends outwards to form a first extending part 13, two pairs of opposite first screw holes 14 are formed in corners of the first extending part 13, a first through hole 15 is formed in the middle position of the first extending part 13 corresponding to the first screw holes 14, and a plurality of second screw holes 16 are formed in the top wall edge of the accommodating cavity 11 and used for locking and mounting the first connecting frame 1 on the automobile frame 7;
the second connecting frame 3 is of a plate-shaped structure, the edge contour of the second connecting frame is matched with the lower end face of the first connecting frame 1, a holding surface 31 for holding the battery pack 2 is formed in the middle of the upper end face of the second connecting frame 3, third screw holes 32 which are in one-to-one correspondence with the first screw holes 14 are formed in the second connecting frame 3 corresponding to the first screw holes 14 of the first connecting frame 1, and second through holes 33 which are in one-to-one correspondence with the first through holes 15 are formed in the second connecting frame 3 corresponding to the first through holes 15 of the first connecting frame 1;
the first bolts 4 are in one-to-one correspondence with the first screw holes 14, and the screw ends 41 of the first bolts sequentially penetrate through the third screw holes 32 and the first screw holes 14 to lock and install the second connecting frame 3 on the lower end face of the first connecting frame 1;
the second bolts 5 are in one-to-one correspondence with the second screw holes 16, and the screw rod ends of the second bolts penetrate through the second screw holes 16 to lock and fix the first connecting frame 1 on the automobile frame 7;
two pairs of buffer mechanisms 6 are matched with four sides of the battery pack 2 in a one-to-one correspondence manner, and the buffer mechanisms 6 comprise:
a buffer plate 61 disposed in the buffer gap 12 formed between the battery pack 2 and the accommodation chamber 11;
at least one pair of buffer springs 62 is horizontally arranged between the buffer plate 61 and the inner wall of the accommodating cavity 11 close to the buffer plate 61 in parallel, one end of each buffer spring 62 is fixed with the vertical middle upper position of the buffer plate 61, and the other end of each buffer spring 62 is fixedly connected with the corresponding inner wall of the accommodating cavity 11.
Wherein, in order to enable the battery pack 2 to be detached, the buffer plate 61 can be constrained in the accommodating cavity 11, as a possible embodiment, the buffer mechanism 6 further comprises:
one end of the connecting rope 63 is fixedly connected with the buffer plate 61 near the center of the end face of the inner wall of the accommodating cavity 11, a penetrating hole 17 for leading out the connecting rope 63 is formed in the center of the inner wall corresponding to the accommodating cavity 11, and the other end of the connecting rope 63 penetrates out of the penetrating hole 17 and extends out of the accommodating cavity 11 and is positioned above one of the first through holes 15;
the first connecting sleeve 64 is vertically fixed on the outer wall of the first connecting frame 1 below the penetrating hole 17;
the sliding sleeve 65 is vertically and slidably arranged in the first connecting sleeve 64 in a penetrating manner, the upper end of the sliding sleeve 65 is of a closed structure and is fixedly connected with the other end of the connecting rope 63, a first internal thread 651 is arranged on the inner wall of the sliding sleeve 65, a guide groove 641 for lifting and lowering the sliding sleeve 65 is vertically arranged in the first connecting sleeve 64, and a guide block 652 is arranged on the outer wall of the sliding sleeve 65 corresponding to the guide groove;
the lifting bolt 66, the middle part is a polished rod portion 661, the screw end 662 of the lifting bolt 66 far away from the head is provided with a first external thread 6621 matched with the first internal thread 651, the screw end 662 of the lifting bolt 66 sequentially passes through the second through hole 33 of the second connecting frame 3 and the first through hole 15 of the first connecting frame 1 from bottom to top, and then is in threaded connection with the sliding sleeve 65, and the sliding sleeve 65 is driven to lift in the first connecting sleeve 64 by the rotation of the lifting bolt 66, so that the connecting rope 63 is tensioned, the buffer plate 61 moves along the direction far away from the battery pack 2 or the connecting rope 63 is loosened, and the buffer plate 61 moves along the direction close to the battery pack 2 and is attached to the side surface of the battery pack 2 by the elasticity of the buffer spring 62.
Preferably, the buffer springs 62 are arranged in two pairs and are horizontally and equidistantly arranged between the buffer plate 61 and the inner wall of the accommodating cavity 11 corresponding to the buffer plate, wherein the buffer springs 62 are positioned above the connecting ropes 63, and the height difference H between the axial center of the buffer springs 62 and the connecting ropes 63 is 3-5 cm.
Through this structural style, can make when pulling down group battery 2, buffer board 61 receives the restraint force of buffer spring 62 and the pulling force of connecting rope 63, wherein, before pulling down group battery 2, rotatory lifting bolt 66 for connecting rope 63 is taut, make buffer board 61 remove along the direction of keeping away from group battery 2, and because connecting rope 63 and buffer spring 62 have the difference in height, therefore, buffer board 61 can present the form that the lower part is little in the upset of being close to holding chamber 11 inner wall direction, this kind of form helps playing the guide effect and avoid hard contact interference problem when installing group battery 2 subsequently, simultaneously, after group battery 2 is dismantled, connecting rope 63 can form a lifting force and cooperate with buffer spring 62, prevent buffer board 61 from deviating from holding chamber 11.
In order to ensure the installation reliability of the lifting bolt 66, as a preferred alternative embodiment, it is preferable that the polish rod portion 661 of the lifting bolt 66 is further sleeved with a constraint sleeve 67, the constraint sleeve 67 is constrained and fixed on the polish rod portion 661 of the lifting bolt 66 through a first bolt 671, and the polish rod portion 661 of the lifting bolt 66 is further sleeved with a connecting spring 68, one end of the connecting spring 68 abuts against the upper end face of the first extension portion 13, and the other end of the connecting spring 68 abuts against the lower end face of the constraint sleeve 67, so that the head of the lifting bolt 66 is pressed against the lower end face of the first extension portion 13.
Meanwhile, in order to make the connecting rope 63 well guided into the first connecting sleeve 64 and connected with the sliding sleeve 65, as a preferred alternative embodiment, the upper end of the first connecting sleeve 64 is preferably rotatably connected with the guide pulley 69 through a rotating shaft, and the other end of the connecting rope 63 is fixedly connected with the sliding sleeve 65 after being bypassed by the upper edge of the guide pulley 69.
In addition, as a preferred alternative, preferably, the buffer plate 61 is a copper plate with a thickness of 3-8 mm, and the copper plate has the advantages that the copper plate can rapidly conduct out the working heat of the battery pack 2, meanwhile, the copper plate has relatively low hardness, friction scratches can be avoided, the thickness of the copper plate is 3-8 mm, which is helpful for adjusting the counterweight, preferably 5mm, and when the second connecting frame 3 is mounted on the lower end face of the first connecting frame 1 in a locking manner, the upper end face of the battery pack 2 supported on the second connecting frame is higher than the upper end face of the buffer plate 61, and the size matching mode is helpful for completely attaching the buffer plate 61 to the side face of the battery pack 2, so that the buffer plate 61 is prevented from exceeding the side face of the battery pack 2.
In order to make the lower end surface of the second connecting frame 3 flat when the first connecting frame 1 and the second connecting frame 3 are installed, as a preferred alternative embodiment, it is preferable that the lower end surface of the second connecting frame 3 is provided with an installation countersink 321 corresponding to the third screw hole 32, and when the first bolt 4 locks and fixes the first connecting frame 1 and the second connecting frame 3, the bottom of the first bolt 4 is not higher than the installation countersink 321 downwards.
Meanwhile, in order to improve connection reliability and strength, as a possible implementation manner, the threads on the first bolt 4 and the second bolt 5 are both pipe threads.
As the shock absorber of this scheme is only applicable to the battery pack 2 that can frequently disassemble and assemble, therefore, in order to avoid the problem that the connection force is not strong due to the screw wear when the first bolt 4 is frequently disassembled and assembled, as a possible implementation manner, further, the upper end surface of the first extension portion 13 is provided with the locking mechanism 8 corresponding to the first screw hole 14 one by one, the locking mechanism 8 includes:
the second connecting sleeve 81 is a cylindrical structure with an open lower end, the lower end of the second connecting sleeve is fixed at the upper end of the first screw hole 14, and the first screw hole 14 is covered in the second connecting sleeve;
the locknut 82 is a hexagonal nut, and the corresponding section of the interior of the second connecting sleeve 81 is a hexagonal structure which is adapted to the contour of the locknut 82;
a check spring 83 disposed in the second connecting sleeve 81, having one end abutting against the check nut 82 and one end abutting against the upper end surface of the first extension portion 13;
the tail end of the screw rod end 41 of the first bolt 4 is provided with a sub-screw rod part 42 coaxial with the screw rod end 41, the outer diameter of the sub-screw rod part 42 is smaller than the screw rod outer diameter of the first bolt 4, the outer periphery side of the sub-screw rod part 42 is provided with a second external screw thread which is matched with the screw thread of the locknut 82, the screw pitch of the second external screw thread is 1.2-1.5 times of the screw thread on the screw rod end 41 of the first bolt 4, the screw thread multiple determines the connection speed of the locknut 82 and the first bolt 4 when the first bolt 4 is screwed in or out, when the first bolt 4 is required to be screwed in, the locknut 82 can be quickly screwed into the sub-screw rod part 42 through the screw thread difference, the lockspring 83 is compressed at the same time, the first bolt 4 receives a lifting force, and the total length of the screw rod end of the first bolt 4 and the sub-screw rod part 42 is larger than the sum of the stroke of the first screw hole 14, the stroke of the second screw hole 16 and the height of the lockspring 83 propping the locknut 82 is smaller than the sum of the stroke of the first screw hole 14, the stroke of the second screw hole 16 and the second connecting sleeve 81.
Through this structure mode, when the first bolt 4 locks the second connecting frame 3 and the first connecting frame 1, the first bolt 4 is enabled to bear a force of lifting upwards through the clamping fit of the sub-screw portion 42 and the locknut 82 and the elasticity of the lockspring 83, and the screw end 41 of the first bolt 4, the first screw hole 14 and the third screw hole 32 are improved to keep high fitting degree.
Based on the above-mentioned device scheme, referring to fig. 9 in combination with fig. 1 to 8, the following steps for disassembling the battery pack 2 are briefly performed:
(1) The rotary lifting bolts 66 of the buffer mechanisms 6 are synchronously rotated, so that the connecting ropes 63 are tensioned, the buffer plate 61 is moved in a direction away from the battery pack 2, and the lower part of the buffer plate 61 is turned over in a small extent in a direction approaching to the inner wall of the accommodating cavity 11 due to the height difference of the connecting ropes 63 and the buffer springs 62;
(2) Loosening the first bolt 4 to remove the locking force of the first connecting frame 1 and the second connecting frame 3;
(3) The second connecting frame 3 is held by a tool to descend so that the battery pack 2 descends along with the tool;
(4) The disassembly of the battery pack 2 is completed.
When the battery pack 2 is installed, only the step of disassembling the battery pack 2 is needed by reverse operation, so that description is omitted, and in addition, the tool for synchronously rotating the bolts is common, so that description is omitted.
While the present invention has been described with respect to the above embodiments, it will be apparent to those skilled in the art from this disclosure that many changes, modifications, substitutions and variations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A battery shock absorbing device of a new energy automobile is characterized in that: it comprises the following steps:
the first connecting frame is of a box-shaped shell structure with an open lower end, an accommodating cavity for accommodating the battery pack is formed in the first connecting frame, and a buffer gap is formed between the side surface of the battery pack and the inner wall of the accommodating cavity close to the side surface of the battery pack when the battery pack is accommodated in the accommodating cavity; the lower end edge of the first connecting frame extends outwards to form a first extending part, two pairs of first screw holes opposite to each other are formed in corners of the first extending part, a first through hole is formed in the middle position of the first extending part, which corresponds to the position between the pair of first screw holes, a plurality of second screw holes are formed in the top wall edge of the accommodating cavity, and the second screw holes are used for locking and installing the first connecting frame on an automobile frame;
the second connecting frame is of a plate-shaped structure, the edge outline of the second connecting frame is matched with the lower end face of the first connecting frame, a supporting face for supporting the battery pack is formed in the middle of the upper end face of the second connecting frame, third screw holes which are in one-to-one correspondence with the first screw holes are formed in the second connecting frame, and second through holes which are in one-to-one correspondence with the first through holes are formed in the second connecting frame, corresponding to the first through holes in the first connecting frame;
the first bolts are in one-to-one correspondence with the first screw holes, the screw ends of the first bolts sequentially penetrate through the third screw holes and the first screw holes, and the second connecting frame is locked and mounted on the lower end face of the first connecting frame;
the second bolts are in one-to-one correspondence with the second screw holes, and the screw rod ends of the second bolts penetrate through the second screw holes to lock and fix the first connecting frame on the automobile frame;
two pairs of buffer gear, with four sides one-to-one cooperation of group battery, buffer gear include:
the buffer plate is arranged in a buffer gap formed between the battery pack and the accommodating cavity;
at least one pair of buffer springs, which are horizontally arranged between the buffer plate and the inner wall of the accommodating cavity close to the buffer plate in parallel, one end of each buffer spring is fixed with the vertical middle upper part of the buffer plate, and the other end of each buffer spring is fixedly connected with the inner wall of the corresponding accommodating cavity;
the buffer mechanism also includes:
one end of the connecting rope is fixedly connected with the center of the end face, close to the inner wall of the accommodating cavity, of the buffer plate, a penetrating hole for leading out the connecting rope is formed in the center of the inner wall corresponding to the accommodating cavity, and the other end of the connecting rope penetrates out of the penetrating hole and extends out of the accommodating cavity and is positioned above one of the first through holes;
the first connecting sleeve is vertically fixed on the outer wall of the first connecting frame below the penetrating hole;
the sliding sleeve can vertically slide and is arranged in the first connecting sleeve in a penetrating manner, the upper end of the sliding sleeve is of a closed structure and is fixedly connected with the other end of the connecting rope, the inner wall of the sliding sleeve is provided with a first internal thread, a guide groove for lifting the sliding sleeve is vertically arranged in the first connecting sleeve, and a guide block is arranged on the outer wall of the sliding sleeve corresponding to the guide groove;
lifting bolt, its middle part is polished rod portion, lifting bolt keeps away from the screw rod end of its head and is equipped with the first external screw thread with first internal screw thread adaptation, lifting bolt's screw rod end passes the second through-hole of second link, behind the first through-hole of first link in proper order from bottom to top, with slip cap threaded connection, and by lifting bolt's rotation, drive slip cap and go up and down in first link, make the connecting rope take up, make the buffer board remove or make the connecting rope loosen along the direction of keeping away from the group battery, the buffer board receives buffer spring elasticity and removes and paste with the group battery side along being close the group battery direction.
2. The battery shock absorbing device of a new energy automobile according to claim 1, wherein: the lifting bolt is characterized in that a constraint sleeve is further sleeved on the polish rod portion of the lifting bolt, the constraint sleeve is fixed on the polish rod portion of the lifting bolt in a constraint mode through a first bolt, a connecting spring is further sleeved on the polish rod portion of the lifting bolt, one end of the connecting spring abuts against the upper end face of the first extension portion, the other end of the connecting spring abuts against the lower end face of the constraint sleeve, and the head of the lifting bolt is pressed on the lower end face of the first extension portion.
3. The battery shock absorbing device of a new energy automobile according to claim 1, wherein: the upper end of the first connecting sleeve is rotationally connected with a guide pulley through a rotating shaft, and the other end of the connecting rope is fixedly connected with the sliding sleeve after the other end of the connecting rope is wound by the upper edge of the guide pulley.
4. The battery shock absorbing device of a new energy automobile according to claim 1, wherein: the buffer springs are arranged in two pairs and are horizontally and equidistantly arranged between the buffer plate and the inner wall of the accommodating cavity corresponding to the buffer plate, wherein the buffer springs are positioned above the connecting ropes, and the height difference between the axial centers of the buffer springs and the connecting ropes is 3-5 cm.
5. The battery shock absorbing device of a new energy automobile according to claim 1, wherein: the buffer plate is a copper plate with the thickness of 3-8 mm, and when the second connecting frame is locked and mounted on the lower end face of the first connecting frame, the upper end face of the battery pack supported on the second connecting frame is higher than the upper end face of the buffer plate.
6. The battery shock absorbing device of a new energy automobile according to claim 1, wherein: the threads on the first bolt and the second bolt are pipe threads.
7. The battery shock absorbing device of a new energy automobile according to claim 1, wherein: the locking mechanism that is equipped with rather than the one-to-one corresponding to first screw is corresponding to first extension up end, locking mechanism include:
the second connecting sleeve is of a cylindrical structure with an open lower end, the lower end of the second connecting sleeve is fixed at the upper end of the first screw hole, and the first screw hole is covered in the second connecting sleeve;
the locknut is a hexagon nut, and the corresponding section of the second connecting sleeve is of a hexagonal structure which is matched with the contour of the locknut;
the anti-loose spring is arranged in the second connecting sleeve, one end of the anti-loose spring is propped against the anti-loose nut, and the other end of the anti-loose spring is propped against the upper end face of the first extension part;
the tail end of the screw rod end of the first bolt is provided with a sub-screw rod part coaxial with the screw rod end of the first bolt, the outer diameter of the sub-screw rod part is smaller than the outer diameter of the screw rod of the first bolt, the outer periphery side of the sub-screw rod part is provided with a second external screw thread which is matched with the screw thread of the locknut, the screw pitch of the second external screw thread is 1.2-1.5 times of the screw pitch on the screw rod end of the first bolt, the total length of the screw rod end of the first bolt and the sub-screw rod part is larger than the sum of the first screw hole stroke, the second screw hole stroke and the height of the locknut propped by the lockspring, and the total length of the locknut propped by the locknut is smaller than the sum of the lengths of the first screw hole stroke, the second screw hole stroke and the second connecting sleeve.
8. The battery shock absorbing device for a new energy automobile according to claim 7, wherein: the lower end face of the second connecting frame is provided with a mounting sink corresponding to the third screw hole, and when the first connecting frame and the second connecting frame are locked and fixed by the first bolt, the bottom of the first bolt is not higher than the mounting sink downwards.
9. The utility model provides a new energy automobile which characterized in that: comprising a battery shock absorbing device of a new energy vehicle according to one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011486754.4A CN112652849B (en) | 2020-12-16 | 2020-12-16 | Battery shock absorber of new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011486754.4A CN112652849B (en) | 2020-12-16 | 2020-12-16 | Battery shock absorber of new energy automobile |
Publications (2)
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Citations (6)
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| CN1219654A (en) * | 1997-12-09 | 1999-06-16 | 株式会社缇·卡托 | Lock washer and locking device using same |
| JP2001234916A (en) * | 2000-02-21 | 2001-08-31 | Yasuyuki Suzuki | Fastening fixture |
| JP2002221212A (en) * | 2001-01-25 | 2002-08-09 | Takeshi Hayakawa | Release-preventing device for bolt and manufacturing method for the device |
| JP2015014308A (en) * | 2013-07-04 | 2015-01-22 | 濱中ナット株式会社 | Sag lock nut |
| CN109435664A (en) * | 2018-11-14 | 2019-03-08 | 杭州科技职业技术学院 | A kind of dedicated bottom support device of new energy car battery case |
| CN111710813A (en) * | 2020-06-30 | 2020-09-25 | 佛山舒宜添科技有限公司 | Lithium battery buffer device for energy automobile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208336326U (en) * | 2018-06-20 | 2019-01-04 | 宁德时代新能源科技股份有限公司 | fixed bracket and battery pack |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219654A (en) * | 1997-12-09 | 1999-06-16 | 株式会社缇·卡托 | Lock washer and locking device using same |
| JP2001234916A (en) * | 2000-02-21 | 2001-08-31 | Yasuyuki Suzuki | Fastening fixture |
| JP2002221212A (en) * | 2001-01-25 | 2002-08-09 | Takeshi Hayakawa | Release-preventing device for bolt and manufacturing method for the device |
| JP2015014308A (en) * | 2013-07-04 | 2015-01-22 | 濱中ナット株式会社 | Sag lock nut |
| CN109435664A (en) * | 2018-11-14 | 2019-03-08 | 杭州科技职业技术学院 | A kind of dedicated bottom support device of new energy car battery case |
| CN111710813A (en) * | 2020-06-30 | 2020-09-25 | 佛山舒宜添科技有限公司 | Lithium battery buffer device for energy automobile |
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| CN112652849A (en) | 2021-04-13 |
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