CN113803373A

CN113803373A - Combined holding device for electric vehicle

Info

Publication number: CN113803373A
Application number: CN202111367962.7A
Authority: CN
Inventors: 周晶
Original assignee: Hangzhou Youxie Technology Co ltd
Current assignee: Hangzhou Youxie Technology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2021-12-17
Anticipated expiration: 2041-11-18
Also published as: CN113803373B

Abstract

The invention discloses a combined retaining device for an electric automobile, which relates to the field of new energy automobile parts and comprises two oppositely-arranged retainers, wherein steel bead grooves are uniformly arranged on the retainers in a surrounding manner, mounting holes are formed in opposite side faces of the retainers in a surrounding manner, the retainers are provided with the mounting holes, the opposite side faces of the retainers are connected with first connecting pieces, each first connecting piece comprises a first base body, each first base body is of an annular structure, opposite sides of the first base bodies are fixedly connected with first ring bodies, the first ring bodies and the first base bodies are coaxially arranged, opposite sides of the first ring bodies are fixedly connected with tubular first ring sleeves, and opposite side edges of the first ring sleeves are annularly provided with clamping grooves; the opposite side surfaces of the first ring sleeves are provided with second base bodies in annular design, the second base bodies are respectively connected with the first connecting pieces on two sides, and clamping blocks which correspond to the clamping grooves in the first ring sleeves one by one are arranged on two sides of each second base body; the clamping groove and the clamping block are correspondingly provided with fastening holes. The problem of unable high-efficient heat dissipation is solved, this combined retention device operates steadily and easily dismantles for a long time.

Description

Combined holding device for electric vehicle

Technical Field

The invention belongs to the field of new energy automobile parts, and particularly relates to a combined retaining device for an electric automobile.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The retainer, i.e. the bearing retainer, refers to a bearing part which partially wraps all or part of the rolling bodies and moves along with the rolling bodies, is used for isolating the rolling bodies and generally guiding and retaining the rolling bodies in the bearing.

For example, in the prior art, the publication number CN207093584U is entitled "combined type retainer for new energy vehicle", and the combined type retainer can mount two retainers together in the same position state, so that the two retainers can perform deflection motion synchronously, and the running stability of the machine is improved. However, the combined type retainer has general heat dissipation performance and is easy to cause burn and fracture of the retainer at high temperature.

It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.

Disclosure of Invention

The invention aims to provide a combined type holding device for an electric automobile, which can realize stable and stable operation of a holding frame, has good heat dissipation performance and cannot cause burning or fracture of the holding frame after being used for a long time.

The technical scheme adopted by the invention for realizing the purpose is as follows:

a combined retaining device for electric automobile, including two holders of placing relatively, the holder evenly encircles and arranges the steel ball groove, holder opposite side encircles and is equipped with the mounting hole, the mounting hole is seted up to the holder, holder opposite side is connected with first connecting piece, first connecting piece includes first base member, first base member is the loop configuration, first base member side is provided with and installs the hole body of hole one-to-one, first base member opposite side rigid coupling first ring body, first ring body and the coaxial setting of first base member, the first ring body opposite side rigid coupling tubulose first ring cover, the opposite side of first ring cover is encircleed and is equipped with the joint groove.

According to the invention, through the design of the first base body and the first ring body, mounting spaces are reserved for the hole body mounting pieces which are arranged on the first base body and correspond to the mounting holes of the retainer one by one; simultaneously the design of first ring body does benefit to the stability of whole holding device, can have mutual pressurization or pull between two holders promptly in the course of the work, the design of first ring body can provide and pull about or push the space that first base member or first ring cover deformation extend in-process, under the operating condition of high strength or under the condition of short time sudden operation, compared in prior art improved whole moving stability and overall structure intensity greatly, the possibility of holding device structure damage has been reduced. Compared with the prior art, the invention has the advantages that more parts are formed into parts, the integral fault-tolerant space is improved, the damaged parts can be more flexibly replaced in the long-time use process, and the maintenance cost is favorably reduced.

The opposite side of the first ring sleeve is provided with a second base body which is designed in an annular shape and is provided with an annular hollow inner ring, the second base body is respectively connected with the first connecting pieces at two sides, and the two sides of the second base body are respectively provided with clamping blocks which are in one-to-one correspondence with the clamping grooves on the first ring sleeve; the clamping groove and the clamping block are correspondingly provided with fastening holes. The first connecting pieces on two sides can be connected through the second base body, and the clamping blocks on two sides of the second base body can be clamped with the clamping grooves in the first ring sleeves on two sides in a one-to-one correspondence mode, so that the overall connection stability and the overall structural strength of the device are kept.

According to the invention, through the design of the second base body, the two retainers are prevented from being directly and rigidly connected, and a spacing space is formed between the two retainers, so that air flow in the space between the two retainers in the using process can smoothly take away friction heat of the roller, the temperature of the integral retaining device is reduced, the possibility that the retaining device is burnt to break is reduced, and the integral service life of the retaining device is obviously prolonged; meanwhile, the second substrate has replaceability, and can be independently replaced when in failure or after being damaged, so that the maintenance and replacement cost after a long time is reduced compared with the prior art; and the design of the second base body can realize synchronous rotation of the retainers, avoid excessive abrasion of any retainer, solve the problem of unbalanced abrasion caused by asynchronous motion after the two retainers are connected, and also avoid the phenomenon that the stress is not transferred to the retainers which are adjacently connected after any retainer is stressed, so that the adjacent retainers are prevented from being deviated and causing instability and resonance of bearing motion, and the phenomenon that the holding device is damaged by instability or resonance of other connecting mechanisms is avoided.

According to one embodiment of the invention, the first base body is provided with a first blade around the axis in the direction close to the retainer, the first blade is vertically connected with the first base body, the first blade is L-shaped, a blade body in the horizontal direction of the L-shaped first blade is connected with the end face of the first base body, and the blade body in the vertical direction of the L-shaped first blade is parallel to the axis of the first base body. The first blades are arranged in the first base body, heat generated by friction of the rollers can be effectively absorbed, and the absorbed heat is dissipated through the heat dissipation assembly.

According to the invention, through the design that the first base body is arranged in the direction close to the retainer in a surrounding manner, compared with the prior art, the heat dissipation capacity of the interior of the retainer and the first base body is greatly improved, the over-high temperature of the retainer is prevented, and the possibility of breakage or burning of the retainer at high temperature is reduced; meanwhile, the holding device is easy to form uneven heat distribution in the short-time high-frequency using process, heat can be quickly absorbed and dissipated through the design of the first blade, and damage or deformation caused by excessive heat accumulation at certain parts of the holding device due to uneven heat distribution of the holding device is prevented. In the long-term use process, the service life of the whole body can be prolonged, the damage probability is reduced, and the whole maintenance cost is reduced.

According to one embodiment of the invention, the annular inner ring of the second base body is provided with an outer bearing ring, the inner side of the outer bearing ring is provided with a coaxial heat dissipation assembly, the heat dissipation assembly comprises a base shaft, and two sides of the base shaft are respectively provided with a first fan blade group and a second fan blade group; an inner bearing ring is sleeved on the base shaft, and the inner bearing ring is connected with the outer bearing ring through a plurality of connecting rods. First fan blade group and second fan blade group can form directional air current with holding device is inside among the radiator unit, thereby the business turn over of guide air current distributes away the heat of piling up in first blade and the heat exchange assemblies, just also distributes away the whole heat of holding device.

The design of the heat dissipation assembly is used for realizing that the second base body can drive the second base body to rotate along with the synchronous rotation of the retainer so as to drive the heat dissipation assembly to rotate to realize the heat dissipation of the retainers at two sides and the bearing, and the heat dissipation assembly can quickly absorb and dissipate heat under the combined action of the first blades and the heat exchange assembly, so that the damage or deformation caused by excessive heat accumulation at certain parts of the retaining device due to uneven heat distribution of the retaining device is prevented; meanwhile, under the action of airflow flowing driven by the heat dissipation assembly, the bearing rotating abrasion powder is blown away, the whole retaining device is prevented from being further abraded, dust and particles in the retaining device can be cleaned, the whole cleaning is kept, the damage of the particles and the dust to the device in work is reduced, the probability of whole vibration or resonance caused by the dust and the particles can be reduced, and the service life of the whole device is prolonged; and, can provide the support to the second base member through radiator unit, strengthen holistic overall structure intensity, avoid the support intensity in the middle part of the integral connection device not enough and produce plastic deformation and produce irreversible damage to the whole, in long-term use, further improve holistic life of composite set and reduce composite set maintenance cost.

According to an embodiment of the present invention, a coaxial heat exchange assembly is disposed in the first ring sleeve, the heat exchange assembly includes a heat exchange body and a fastening member, the heat exchange body includes a plurality of heat exchange fins which are compactly and parallelly disposed, the heat exchange fins are disk-shaped thin sheets, a plurality of slots are uniformly disposed on edges of the heat exchange fins, the heat exchange fins are connected by a coaxial connection column, the fastening member disposes the heat exchange assembly in the first ring sleeve, and the fastening member is disposed at two ends of the heat exchange body to form a limit. The heat exchange assembly is arranged in the first ring sleeve and can exchange heat with heat dissipated by the bearings on the two sides, and the effect of reducing the working temperature of the bearings is achieved.

According to the invention, through the design of the heat exchange assembly, the heat exchange efficiency of the heat exchange assembly can be greatly improved through the combined action of the heat exchange assembly and the heat dissipation assembly, the overall heat dissipation efficiency of the combined device is also greatly improved, heat can be rapidly absorbed and dissipated, and damage or deformation caused by excessive heat accumulation at certain parts of the holding device due to uneven heat distribution of the holding device is prevented; meanwhile, the overall strength is ensured by the design of the heat exchange assembly, the heat exchange assembly is fastened in the first ring sleeve by the fastening piece, the supporting strength of the first connecting piece is greatly improved, the problem that the middle part of the whole connecting device is insufficient in supporting strength and easy to deform is avoided; the heat exchange assembly further has a damping function, vibration generated during operation of the combined device can be transmitted to the adjacent retainer, the damping of the whole device is facilitated, the phenomenon that stress is not transmitted to the adjacent connected retainer after any retainer is stressed is avoided, the adjacent retainer deflects, bearing movement instability and resonance can be avoided, and damage to other connecting mechanisms caused by instability or resonance of the retaining device is avoided.

According to one embodiment of the invention, the fastening piece comprises a clamping strip and a clamping ring, the clamping strip is vertically connected with the clamping ring, the clamping strip and the groove of the heat exchange sheet form a splicing relation, the end part of the clamping strip is provided with a clamping groove, and the end parts of the clamping strip can be clamped in pairs oppositely. The clamping strips in the fastening device can form a splicing relationship with the heat exchange plates, and the heat exchange bodies can be fastened in the clamping strips through the clamping of the fastening pieces in pairs, so that the heat exchange device is integrally fastened in the first ring body.

The fastener is a fastener which can be detached separately, the heat exchange assembly can be fastened in the first ring sleeve, and the running stability of the whole equipment can be greatly improved; meanwhile, due to the fact that the heat exchanger is detachable, the internal heat exchange assembly can be maintained regularly, the service life of the whole device is prolonged, and the fault rate of the combined type retaining device is reduced; in addition, through the design of the fastening piece, the overall strength of the combined device is further enhanced, and compared with the prior art, the protection effect on the radiator is improved. Compared with the prior art, the invention facilitates the maintenance and the overhaul of the heat dissipation device through the design of the fastener which can be detached separately, simultaneously improves the integral operation fault tolerance rate of the combined device, and improves the stability and the integral structure strength in the operation process.

According to one embodiment of the invention, the distance between any two adjacent heat exchange plates is less than 2.5 mm.

According to the invention, through the design that the distance between any two adjacent heat exchange fins is less than 2.5mm, under the combined action of the heat dissipation assembly, the heat exchange assembly and the first blade, the heat dissipation distance is set, so that the air flow generated by the heat dissipation assembly can flow in the holding device, the heat dissipation efficiency of the whole holding device is improved to reduce the heat damage of the holding device, and the heat dissipation distance is favorable for the heat dissipation of the heat dissipation fins, so that the air flow generated by the heat dissipation assembly can be subjected to heat exchange treatment more effectively. Through the design, heat can be absorbed and dissipated quickly, and damage or deformation caused by excessive heat accumulation at certain parts of the holding device due to uneven heat distribution of the holding device is prevented.

According to an embodiment of the present invention, the heat exchanging fins are made of aluminum or copper.

According to an embodiment of the present invention, the catching groove and the catching block are connected by a fastening bolt.

Compared with the prior art, the invention has the beneficial effects that: (1) the heat dissipation performance is good, and burn or fracture cannot be caused in the long-time use process; (2) the split type design is easy to disassemble and replace during fault or maintenance; (3) the invention has the advantages that the operation process is stable and stable, and the invention is provided with a plurality of damping and stabilizing parts; (4) the dust generated by the operation of the retainer and the external dust can be automatically cleaned, the integral cleanness is kept, and the long-time operation and the service life of the device are prolonged.

Drawings

FIG. 1 is a front view of a combination type retention device for an electric vehicle;

FIG. 2 is a side view of a combination type holding device for an electric vehicle;

FIG. 3 is an exploded view of the combination retainer of the electric vehicle;

FIG. 4 is a schematic view of a second substrate and heat dissipation assembly;

FIG. 5 is a front view of a second substrate;

FIG. 6 is a schematic view of a heat sink assembly;

FIG. 7 is an exploded view of the heat exchange assembly;

FIG. 8 is a schematic view of a heat exchange body;

FIG. 9 is a schematic view of a fastener.

Reference numerals: the heat exchanger comprises a retainer 100, a steel ball groove 101, a mounting hole 102, a first connecting piece 200, a first base body 210, a first ring body 220, a first ring sleeve 230, a clamping groove 231, a second base body 300, a clamping block 310, a fastening hole 311, an outer bearing ring 320, a connecting rod 330, an inner bearing ring 340, a heat dissipation assembly 400, a base shaft 410, a first fan blade group 411, a second fan blade group 412, a heat exchange assembly 500, a heat exchanger 510, a heat exchange sheet 511, a connecting column 512, a fastening piece 520, a clamping strip 521 and a clamping ring 522.

Detailed Description

The technical solution of the present invention is further described in detail below with reference to the following detailed description and the accompanying drawings:

example 1:

as shown in fig. 1, 2 and 3, the combined type holding device for the electric vehicle includes two oppositely disposed holders 100, the holders 100 are uniformly arranged with steel ball grooves 101 around, opposite side faces of the holders 100 are provided with mounting holes 102 around, the holders 100 are provided with the mounting holes 102, opposite side faces of the holders 100 are connected with first connecting pieces 200, the first connecting pieces 200 include first base bodies 210, the first base bodies 210 are annular structures, side faces of the first base bodies 210 are provided with hole bodies corresponding to the mounting holes 102 one by one, opposite sides of the first base bodies 210 are fixedly connected with first ring bodies 220, the first ring bodies 220 are coaxially arranged with the first base bodies 210, opposite sides of the first ring bodies 220 are fixedly connected with tubular first ring sleeves 230, opposite side edges of the first ring sleeves 230 are circumferentially provided with clamping grooves 231.

By the design of the first base body 210 and the first ring body 220, mounting spaces are reserved for mounting pieces arranged on the hole bodies, corresponding to the mounting holes 102 of the retainer 100, on the first base body 210 one by one; meanwhile, the design of the first ring body 220 is beneficial to the stability of the integral holding device, namely, mutual pressurization or pulling exists between the two holders 100 in the working process, the design of the first ring body 220 can provide a space for deformation and extension of the first base body 210 or the first ring sleeve 230 in the left-right pulling or extruding process, and under the working condition of high strength or short-time sudden operation, compared with the prior art, the integral operation stability and the integral structure strength are greatly improved, and the possibility of structural damage of the holding device is reduced. Compared with the prior art, the invention has the advantages that more parts are formed into parts, the integral fault-tolerant space is improved, the damaged parts can be more flexibly replaced in the long-time use process, and the maintenance cost is favorably reduced.

The opposite side of the first ring cover 230 is provided with a second base 300 with an annular design, the second base 300 is provided with an annular hollow inner ring, the second base 300 is respectively connected with the first connecting pieces 200 at two sides, and the two sides of the second base 300 are provided with clamping blocks 310 which are in one-to-one correspondence with the clamping grooves 231 on the first ring cover 230; the fastening holes 311 are correspondingly formed in the fastening grooves 231 and the fastening blocks 310. The first connecting members 200 at both sides can be connected through the second base 300, and the clamping blocks 310 at both sides of the second base 300 can be clamped with the clamping grooves 231 on the first ring sleeves 230 at both sides in a one-to-one correspondence manner, so that the overall connection stability and the overall structural strength of the device can be maintained.

According to the invention, through the design of the second base body 300, the two retainers 100 are prevented from being directly and rigidly connected, so that a space is formed between the two retainers 100, and the air in the space between the two retainers 100 can smoothly take away the friction heat of the roller in the using process, thereby reducing the temperature of the integral retaining device, further reducing the possibility that the retaining device is burnt to break, and obviously prolonging the service life of the integral retaining device; meanwhile, the second substrate 300 has replaceability, and can be replaced independently when a fault occurs or after damage occurs, so that the maintenance and replacement cost after a long time is reduced compared with the prior art; thirdly, the design of the second base 300 can realize the synchronous rotation of the retainers 100, avoid excessive wear of any retainer 100, namely solve the problem of unbalanced wear caused by asynchronous motion after the two retainers 100 are connected, and also avoid that any retainer 100 cannot transfer stress to the adjacent connected retainer 100 after being stressed, so as to avoid the deviation of the adjacent retainers 100 and the instability and resonance of bearing motion, and avoid the damage of the instability or resonance of the retaining device to other connecting mechanisms.

As shown in fig. 3, the first base 210 is provided with a first blade around the axis in the direction close to the holder 100, the first blade is vertically connected with the first base 210, the first blade is L-shaped, the horizontal direction blade body of the L-shaped first blade is connected with the end face of the first base 210, and the vertical direction blade body of the L-shaped first blade is parallel to the axis of the first base 210. The first blade is disposed inside the first substrate 210, and can effectively absorb heat generated by friction of the roller, and dissipate the absorbed heat through the heat dissipation assembly 400.

According to the invention, through the design that the first base body 210 is arranged in the direction close to the retainer 100 in a surrounding manner, compared with the prior art, the heat dissipation capacity of the interior of the retainer 100 and the first base body 210 is greatly improved, the over-high temperature of the retainer 100 is prevented, and the possibility of breakage or burning of the retainer 100 at high temperature is reduced; meanwhile, the holding device is easy to form uneven heat distribution in the short-time high-frequency using process, heat can be quickly absorbed and dissipated through the design of the first blade, and damage or deformation caused by excessive heat accumulation at certain parts of the holding device due to uneven heat distribution of the holding device is prevented. In the long-term use process, the service life of the whole body can be prolonged, the damage probability is reduced, and the whole maintenance cost is reduced.

As shown in fig. 4, 5, and 6, an outer bearing ring 320 is disposed on an annular inner ring of the second substrate 300, a coaxial heat dissipation assembly 400 is disposed inside the outer bearing ring 320, the heat dissipation assembly 400 includes a base shaft 410, and a first fan blade group 411 and a second fan blade group 412 are disposed on two sides of the base shaft 410 respectively; the base shaft 410 is sleeved with an inner bearing ring 340, and the inner bearing ring 340 is connected with the outer bearing ring 320 through a plurality of connecting rods 330. The first fan blade set 411 and the second fan blade set 412 in the heat dissipation assembly 400 can form a directional air flow inside the retaining device, so as to guide the air flow to enter and exit, thereby dissipating the heat accumulated in the first blades and the heat exchange assembly 500, and dissipating the heat of the whole retaining device.

The design of the heat dissipation assembly 400 is used for realizing that the second base body 300 can drive the second base body 300 to rotate along with the synchronous rotation of the retainer 100 so as to drive the heat dissipation assembly 400 to rotate to realize the heat dissipation of the retainers 100 at two sides and the bearing, and the heat dissipation assembly 400 can quickly absorb and dissipate heat under the combined action of the first blades and the heat exchange assembly 500, so that the damage or deformation caused by excessive heat accumulation at certain parts of the retainer due to uneven heat distribution of the retainer is prevented; meanwhile, under the action of the airflow flowing driven by the heat dissipation assembly 400, the bearing rotating abrasion powder is blown away, the whole retaining device is prevented from being further abraded, dust and particles in the retaining device can be cleaned, the whole cleaning is kept, the damage of the particles and the dust to the device in work is reduced, the probability of whole vibration or resonance caused by the dust and the particles can be reduced, and the service life of the whole device is prolonged; moreover, the heat dissipation assembly 400 can support the second base 300, the overall structural strength of the whole body is enhanced, the phenomenon that the whole body is irreversibly damaged due to plastic deformation caused by insufficient support strength at the middle part of the whole connecting device is avoided, the service life of the whole combined device is further prolonged, and the maintenance cost of the combined device is reduced in the long-term use process.

As shown in fig. 3, 7, 8, and 9, a coaxial heat exchange assembly 500 is disposed in the first ring sleeve 230, the heat exchange assembly 500 includes a heat exchange body 510 and a fastening member 520, the heat exchange body 510 includes a plurality of heat exchange plates 511 that are compact and parallel to each other, the heat exchange plates 511 are disc-shaped sheets, a plurality of slots are uniformly disposed on the edges of the heat dissipation plates, the heat exchange plates 511 are connected by a coaxial connection column 512, the fastening member 520 fixes the heat exchange assembly 500 in the first ring sleeve 230, and the fastening member 520 is disposed at two ends of the heat exchange body 510 to form a limit. The heat exchange assembly 500 is arranged in the first loop 230, and the heat exchange assembly 500 can exchange heat with heat dissipated by the bearings on the two sides, so that the working temperature of the bearings is reduced.

According to the invention, through the design of the heat exchange assembly 500 and the combined action of the heat exchange assembly 500 and the heat dissipation assembly 400, the heat exchange efficiency of the heat exchange assembly 500 can be greatly improved, the overall heat dissipation efficiency of the combined device is also greatly improved, heat can be rapidly absorbed and dissipated, and damage or deformation caused by excessive heat accumulation at certain parts of the holding device due to uneven heat distribution of the holding device is prevented; meanwhile, the overall strength is ensured by the design of the heat exchange assembly 500, the heat exchange assembly 500 is fastened in the first ring sleeve 230 by the fastening piece 520, the supporting strength of the first connecting piece 200 is greatly improved, and the phenomenon that the middle part of the whole connecting device is insufficient in supporting strength and easy to deform is avoided; the heat exchange assembly 500 further has a shock absorption function, and can transmit the shock generated by the combined device during operation to the adjacent retainer 100, so that the shock absorption of the whole device is facilitated, and the phenomenon that any retainer 100 cannot transmit the stress to the adjacent connected retainer 100 after being stressed is avoided, so that the adjacent retainer 100 deflects, the bearing motion instability and resonance are avoided, and the damage of the retainer instability or resonance to other connected mechanisms is avoided.

As shown in fig. 7 and 9, the fastening member 520 includes a clamping bar 521 and a clamping ring 522, the clamping bar 521 is vertically connected to the clamping ring 522, the clamping bar 521 and the slot of the heat exchanger plate 511 form a splicing relationship, a clamping slot is provided at an end of the clamping bar 521, and ends of the clamping bar 521 can be clamped in pairs. The clamping bars 521 in the fastening device can form a splicing relationship with the heat exchanging fins 511, and the heat exchanging body 510 can be fastened therein by clamping the fastening pieces 520 in pairs, so that the heat exchanging device can be integrally fastened in the first ring body 220.

The fastener 520 is a fastener 520 which can be detached and separated, so that the heat exchange assembly 500 can be fastened in the first loop 230, and the running stability of the whole equipment can be greatly improved; meanwhile, due to the fact that the heat exchange device is detachable, the internal heat exchange assembly 500 can be maintained regularly, the service life of the whole device is prolonged, and the fault rate of the combined type retaining device is reduced; in addition, by designing the fastening member 520, the overall strength of the combination device is further enhanced, and compared with the prior art, the protection effect on the heat sink is improved. Compared with the prior art, the invention facilitates the maintenance and the overhaul of the heat dissipation device by designing the fastener 520 which can be detached separately, simultaneously improves the integral operation fault tolerance rate of the combination device, and improves the stability and the integral structural strength in the operation process.

As shown in fig. 7 and 8, the distance between any two adjacent heat exchange fins 511 is less than 2.5 mm.

According to the invention, through the design that the distance between any two adjacent heat exchange fins 511 is less than 2.5mm, under the combined action of the heat dissipation assembly 400, the heat exchange assembly 500 and the first blades, the heat dissipation distance is set, so that the air flow generated by the heat dissipation assembly 400 can flow in the holding device, the overall heat dissipation efficiency of the holding device is improved to reduce the heat damage of the holding device, and the heat dissipation distance is favorable for the heat dissipation fins to dissipate the absorbed heat, so that the air flow generated by the heat dissipation assembly 400 can be subjected to heat exchange treatment more effectively. Through the design, heat can be absorbed and dissipated quickly, and damage or deformation caused by excessive heat accumulation at certain parts of the holding device due to uneven heat distribution of the holding device is prevented.

As shown in fig. 7 and 8, the heat exchanger fins 511 are made of aluminum or copper.

As shown in fig. 1, 2 and 3, the catching grooves 231 and the catching blocks 310 are connected by fastening bolts.

The embodiments described above are intended to illustrate the technical solutions of the present invention in detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modification, supplement or similar substitution made within the scope of the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Combined type holding device for electric automobile, including two relative cages (100) of placing, cage (100) are even around arranging steel ball groove (101), characterized by:

the opposite side surfaces of the retainer (100) are provided with mounting holes (102) in a surrounding manner, the opposite side surfaces of the retainer (100) are respectively connected with first connecting pieces (200), each first connecting piece (200) comprises a first base body (210), each first base body (210) is of an annular structure, hole bodies corresponding to the mounting holes (102) in a one-to-one manner are arranged on the side surfaces of the first base bodies (210), the opposite sides of the first base bodies (210) are fixedly connected with first ring bodies (220), the first ring bodies (220) and the first base bodies (210) are coaxially arranged, the opposite sides of the first ring bodies (220) are fixedly connected with tubular first ring sleeves (230), and clamping grooves (231) are formed in the surrounding manner on the opposite side edges of the first ring sleeves (230);

the opposite side surfaces of the first ring sleeve (230) are provided with second base bodies (300) in an annular design, the second base bodies (300) are provided with annular hollow inner rings, the second base bodies (300) are respectively connected with the first connecting pieces (200) at two sides, and clamping blocks (310) which correspond to the clamping grooves (231) in the first ring sleeve (230) in a one-to-one mode are arranged at two sides of each second base body (300);

the clamping groove (231) and the clamping block (310) are correspondingly provided with fastening holes (311).

2. The combination type holding device for electric vehicle as claimed in claim 1, wherein: the first base body (210) is close to the retainer (100) and surrounds the axis to arrange a first blade (211), the first blade (211) is vertically connected with the first base body (210), the first blade (211) is L-shaped, a blade body of the first blade (211) in the horizontal direction is connected with the end face of the first base body (210), and the blade body of the first blade (211) in the vertical direction is parallel to the axis of the first base body (210).

3. The combination type holding device for electric vehicle as claimed in claim 2, wherein: an outer bearing ring (320) is arranged on an annular inner ring of the second base body (300), a coaxial heat dissipation assembly (400) is arranged on the inner side of the outer bearing ring (320), the heat dissipation assembly (400) comprises a base shaft (410), and a first fan blade group (411) and a second fan blade group (412) are respectively arranged on two sides of the base shaft (410);

the base shaft (410) is sleeved with an inner bearing ring (340), and the inner bearing ring (340) is connected with the outer bearing ring (320) through a plurality of connecting rods (330).

4. The combination type holding device for electric vehicle as claimed in claim 3, wherein: be equipped with coaxial heat exchange assembly (500) in first ring cover (230), heat exchange assembly (500) are including heat exchanger body (510) and fastener (520), heat exchanger body (510) are including a plurality of compact and parallel arrangement's heat exchanger fin (511), heat exchanger fin (511) are disc type thin slice, fin (511) edge evenly is equipped with a plurality of flutings, heat exchanger fin (511) are connected through coaxial spliced pole (512), fastener (520) set up heat exchange assembly (500) in first ring cover (230), fastener (520) are located heat exchanger body (510) both ends and are formed spacingly.

5. The combination type holding device for electric vehicle as claimed in claim 4, wherein: fastener (520) are including joint strip (521) and joint ring (522), joint strip (521) perpendicular connection joint ring (522), joint strip (521) and the fluting of heat exchanger fin (511) form the grafting relation, joint strip (521) tip is equipped with the draw-in groove, joint strip (521) tip can two liang of relative joint.

6. The combination type holding device for electric vehicle as claimed in claim 4, wherein: the distance between any two adjacent heat exchange fins (511) is less than 2.5 mm.

7. The combination type holding device for electric vehicle as claimed in claim 4, wherein: the heat exchange fins (511) are made of aluminum or copper.

8. The combination type holding device for electric vehicle as claimed in any one of claims 1 to 7, wherein: the clamping groove (231) and the clamping block (310) are connected through a fastening bolt.