CN211828891U - Water-cooling box structure - Google Patents
Water-cooling box structure Download PDFInfo
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- CN211828891U CN211828891U CN202020321348.1U CN202020321348U CN211828891U CN 211828891 U CN211828891 U CN 211828891U CN 202020321348 U CN202020321348 U CN 202020321348U CN 211828891 U CN211828891 U CN 211828891U
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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 utility model discloses a water-cooling box structure, mainly to the lower box of height, frame before processing according to the demand, left side frame, back frame, right side frame and business turn over water structure, business turn over water structure includes the intake nozzle, faucet and water-cooling board, intake nozzle and faucet welding are on preceding frame, the water course has been seted up on the water-cooling board, the water course communicates with intake nozzle and faucet respectively, the water-cooling board both sides pass through FSW with preceding frame and back frame and weld into an organic whole, locate processing breach and use TIG welding mode shutoff breach in the leak, left side frame and right frame form water-cooling box structure through FSW and the left and right sides of CMT welding at the water-cooling board, and follow-up processing is perfect. In this way, the utility model discloses water-cooling box structure integrates box and water-cooling board, and the FSW leak source department of frame and water-cooling board adopts the processing breach and uses TIG to weld the shutoff mode and guarantee the gas tightness qualification rate around, improves batch production efficiency, reduction in production cost.
Description
Technical Field
The utility model relates to an automobile parts technical field especially relates to a water-cooling box structure.
Background
In recent years, the new energy automobile industry is rapidly developed, and a large number of aluminum extruded sections are applied to new energy automobile battery trays, so that the lightweight level of the whole new energy automobile is improved.
At present, the commercial bus in the market has large electric demand, so that more aluminum alloy commercial bus battery boxes are needed. The existing battery box body is mainly a metal plate box body, the early development cost is very high, a stamping die needs to be opened, the period is long, and the weight is heavy, so that the requirement of light weight of an automobile cannot be met.
The aluminum alloy box body is a future trend, and only a plurality of aluminum alloy extrusion dies need to be developed relative to the sheet metal box body, so that the cost is low and the period is short.
The scheme structure of the existing aluminum alloy standard box is shown in figures 1-2, and comprises the following steps: 1', a front frame, 2', a rear frame, 3', a left frame, 4', a right frame, 5', a bottom plate, 6', a sleeve, 7', a lifting lug, 8', an upper cover mounting hole, 9', a module mounting hole, 10', a BMS support, 11' and a brazing cold plate.
Most of the box bodies on commercial buses in the industry at present adopt the scheme, and only the appearance, the height, the internal arrangement and the like of the box bodies are different.
The main disadvantages of the above aluminum alloy standard box scheme are: the battery box body needs to be developed independently, and meanwhile, the water-cooling plate is brazed, so that the process is complex and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a water-cooling box structure, and is main to the high lower box, concentrates box and water-cooling board into an organic whole, and the FSW leak source department of frame and water-cooling board adopts the processing breach and uses TIG to weld the shutoff mode and guarantee the gas tightness qualification rate in front and back simultaneously, has improved batch production efficiency, has reduced manufacturing cost.
In order to solve the technical problem, the utility model discloses a technical scheme be: provided is a water-cooled box structure, including: a front frame, a left frame, a rear frame, a right frame and a water inlet and outlet structure,
the water inlet and outlet structure comprises a water inlet nozzle, a water outlet nozzle and a water cooling plate, the water inlet nozzle and the water outlet nozzle are welded on the front frame, a water channel is arranged on the water cooling plate, one end of the water channel is communicated with the water inlet nozzle, the other end of the water channel is communicated with the water outlet nozzle,
the front side and the rear side of the water cooling plate are respectively welded with the front frame and the rear frame into a whole through FSW, and then the left frame and the right frame are welded on the left side and the right side of the water cooling plate through FSW and CMT to form a water cooling box body structure.
In a preferred embodiment of the present invention, the left and right sides of the front frame are provided with a triangular water gap adapted to the water inlet and the water outlet, the inner space of the triangular water gap forms a water storage transition area, and a water passage hole is disposed in the water storage transition area.
In a preferred embodiment of the present invention, the water inlet nozzle and the water outlet nozzle are respectively welded in the triangular water ports on the left and right sides of the front frame, and a full-weld circle is formed along the connection between the triangular water port and the water inlet nozzle and the water outlet nozzle by adopting a TIG welding method.
In a preferred embodiment of the present invention, a stir welding support block is provided on the front frame on the side connected to the water cooling plate for inserting the water cooling plate, and the water channel on the water cooling plate is separated by the stir welding support block.
In a preferred embodiment of the present invention, the front frame and the rear frame are respectively inserted into the front side and the rear side of the water-cooling plate, and the splicing seam between the water-cooling plate and the front frame and the splicing seam between the water-cooling plate and the rear frame are welded by using a double-sided FSW.
In a preferred embodiment of the present invention, the water pipe is connected to the outside of the water-cooling box structure, and the water flows through the water channel of the water-cooling plate injected by the water inlet nozzle, flows along a predetermined flow direction in the water channel, and then flows out toward the water outlet nozzle, thereby forming a water-cooling circulation system.
In a preferred embodiment of the present invention, the depth of FSW welding between the front frame and the rear frame and the water-cooling plate is 2 mm.
In a preferred embodiment of the present invention, the front frame, the rear frame and the water-cooling plate are welded by the double-sided FSW, and the side edges of the front frame, the rear frame and the water-cooling plate are formed with 4 notches, and the 4 notches are opened to form a semicircular fan-shaped notch.
In a preferred embodiment of the present invention, the semicircular fan-shaped notch is blocked by TIG full weld and then ground flat.
The utility model has the advantages that: the utility model discloses water-cooling box structure is mainly to the lower box of height, concentrates box and water-cooling board into an organic whole, and the FSW leak source department of frame and water-cooling board adopts the processing breach and uses TIG to weld the shutoff mode and guarantee the gas tightness qualification rate in front and back simultaneously, has improved batch production efficiency, has reduced manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
FIG. 1 is a schematic structural diagram of a preferred embodiment of a standard aluminum alloy box solution of the prior art;
FIG. 2 is a schematic structural view of a preferred embodiment of a brazed cold plate in a standard aluminum alloy tank version of the prior art;
FIG. 3 is a schematic structural view of a preferred embodiment of the water-cooling box structure of the present invention with a low height;
FIG. 4 is a schematic structural view of a preferred embodiment of a front frame of the water-cooling box structure of the present invention;
FIG. 5 is a schematic structural view of another preferred embodiment of a front frame of the water-cooling box structure of the present invention;
FIG. 6 is a schematic structural view of a preferred embodiment of the water cooling plate connected to the front and rear frames in the water cooling box structure of the present invention;
FIG. 7 is a schematic structural view of the water-cooled plate and the FSW of the front and rear frames after double-side welding in the water-cooled box structure of the present invention;
FIG. 8 is an enlarged view of a portion A of FIG. 7;
FIG. 9 is a partially enlarged front view of A in FIG. 7;
the parts in the drawings are numbered as follows: : 1', a front frame, 2', a rear frame, 3', a left frame, 4', a right frame, 5', a bottom plate, 6', a sleeve, 7', a lifting lug, 8', an upper cover mounting hole, 9', a module mounting hole, 10', a BMS bracket, 11', a brazing cold plate,
1. the water cooling device comprises a front frame, 101, a triangular water gap, 102, a water channel hole, 103, a stirring welding supporting block, 2, a rear frame, 3, a left frame, 4, a right frame, 5, a water cooling plate, 501, a water channel, 6, a water inlet nozzle, 7, a water outlet nozzle, 8, a semicircular sector notch, 9 and a small hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 3 to 9, an embodiment of the present invention includes:
example one
A water-cooling box body structure mainly aims at a box body with a lower height and comprises a front frame 1, a left frame 3, a rear frame 2, a right frame 4 and a water inlet and outlet structure, wherein the water inlet and outlet structure comprises a water inlet nozzle 6, a water outlet nozzle 7 and a water-cooling plate 5.
The water inlet nozzle 6 and the water outlet nozzle 7 are welded on the front frame 1, the water cooling plate 5 is provided with a water channel 501 (the flow direction is shown by an arrow in fig. 3), one end of the water channel 501 is communicated with the water inlet nozzle 6, the other end of the water channel 501 is communicated with the water outlet nozzle 7, and the front side and the rear side of the water cooling plate 5 are respectively welded with the front frame 1 and the rear frame 2 into an integral structure through FSW.
After the air tightness of the water cooling plate 5 is qualified, the left frame 3 and the right frame 4 are welded on the left side and the right side of the water cooling plate 5 through FSW and CMT to form a water cooling box structure, and the air tightness of the box structure is guaranteed.
the thickness of the front frame 1 section is properly increased, a stirring welding supporting block 103 is arranged on one side, connected with the water cooling plate 5, of the front frame 1 and used for inserting the water cooling plate 5, a water channel 501 on the water cooling plate 5 is separated through the stirring supporting block 103, meanwhile, the stirring welding process plays a supporting role, the stirring welding process cannot collapse when rapidly passing through the water channel hole 102, slight deformation is formed inside the water channel hole 102, and water inlet and outlet are not affected.
The water inlet nozzle 6 and the water outlet nozzle 7 are arranged on the outer side of the box body, the triangular water gaps 101 on the left side and the right side of the front frame are respectively welded, and a TIG welding mode is adopted to fully weld a circle along the connecting part of the triangular water gap 101 and the water inlet nozzle 6 and the water outlet nozzle 7, so that the air tightness is ensured; then the front side and the rear side of the water cooling plate 5 are respectively inserted into the front frame 1 and the rear frame 2, and the splicing seams of the water cooling plate 5 and the front frame 1 and the rear frame 2 are welded by adopting double-sided FSW.
The water pipe is connected to the outer side of the water-cooling box body structure, and water flows into the water channel 501 of the water-cooling plate 5 through the water inlet nozzle 6, flows along the set flow direction in the water channel 501, and then flows out towards the water outlet nozzle 7 to form a water-cooling circulation system.
The side edges of the front frame 1, the rear frame 2 and the water cooling plate after being welded by the double-sided FSW are provided with 4 notches, and the solution of the leakage point is as follows:
the depth of the front frame 1 and the rear frame 2 welded with the double-sided FSW of the water cooling plate 5 is respectively 2mm, the water cooling plate 5 is not penetrated, the side gap can leak water and needs to be blocked, and the total number of the parts is 4, and the air tightness requirement of the water cooling plate is as follows: introducing 0.3MPa compressed air, keeping 1 minute, and reducing pressure drop less than 100 Pa.
In order to meet the airtight requirement, 4 notches are arranged to form a semicircular fan-shaped notch 8, when an inner small hole 9 is seen, the operation size of the welding gun head is optimized, chip liquid is not added during machining, water cannot exist, the welding gun head can enter the bottom plate, the welding gun head cannot be cleaned up, TIG welding is affected to form air holes, and airtightness is affected.
Then the semi-circular fan-shaped gap 8 is repaired:
step one, visually observing the small holes 9, then performing TIG welding to seal the small holes, wherein air holes cannot be formed, some small holes need to be ground, re-welding is performed, and the next step of operation is performed after no problem is determined;
and secondly, surfacing, namely filling a large gap of a TIG full weld scar, and finally polishing the weld scar higher than a plane to be flat, wherein the airtightness reliability is optimal, if the gap is not opened or is opened to be very small, a tunnel air hole is often formed in a welding seam, and the airtightness qualified rate is only about 50%.
The scheme that the notch is machined and the water cooling plate is blocked by TIG welding can ensure that the airtight qualified rate of the water cooling plate reaches about 98 percent.
And notches are machined at FSW leakage points of the front frame and the rear frame and the water cooling plate, and the air tightness qualification rate is ensured by using a TIG welding plugging mode, so that the batch production efficiency is improved, and the production cost is reduced.
Example two
A production process of a water-cooling box body structure comprises the following steps:
a. processing of a front frame 1:
processing the aluminum alloy section according to actual requirements to obtain a front frame,
then a triangular water gap 101 is processed on the front frame 1, a through water channel hole 102 is processed in the inner space of the triangular water gap 101 by adopting a deep space drill,
finally, a stirring welding supporting block 103 is arranged on one side of the front frame 1 connected with the water cooling plate 5;
b. and (3) processing the rear frame 2:
processing the aluminum alloy section according to actual requirements to obtain a rear frame 2;
c. and (3) processing the water-cooling plate 5:
processing the aluminum alloy section according to actual requirements to obtain a water cooling plate 5, and processing a corresponding water channel 501 on the water cooling plate 5;
d. the front frame 1 and the rear frame 2 are welded with the water cooling plate 5 by FSW:
inserting one side of a water-cooling plate 5 into a stirring welding supporting block 103 on the front frame 1, inserting the other side of the water-cooling plate into the rear frame 2, and then adopting double-sided FSW at a splicing seam;
e. and (3) processing notches of the water cooling plate 5:
the water cooling plate 5, the front frame 1 and the rear frame 2 are welded through double-sided FSW, 4 notches are formed in the side edges, the 4 notches are machined to form semicircular fan-shaped notches 8 until small holes 9 in the water cooling plate are seen, and the operation size of the welding gun head is convenient to be optimal;
f. welding the water nozzle and the notch:
the water inlet nozzle and the water outlet nozzle are respectively inserted into the triangular water gap 101 on the front frame, and are fully welded for a circle along the joint of the triangular water gap 101 and the water inlet nozzle 6 and the water outlet nozzle 7 by adopting a TIG welding mode,
then, the small holes 9 which are visually seen in the semicircular sector-shaped notches 8 in the step e are blocked by TIG welding, air holes cannot be formed, if the air holes exist, the air holes need to be ground and then welded again,
after confirming that no problem exists, adopting TIG welding to stack the semicircular fan-shaped notch 8 of the crater to be filled, and finally polishing the crater higher than the plane to be flat;
g. and (3) air tightness testing: introducing 0.3MPa compressed air into the water-cooling plate 5, keeping 1 minute, and meeting the key index of the water-cooling box body if the pressure drop is less than 100 Pa;
h. and (3) post-processing: and after the air tightness test of the water-cooling plate 5 is qualified, performing double-sided FSW welding on the left frame 3 and the right frame 4 and the water-cooling plate 5, and then sequentially performing internal CMT welding, TIG full-length welding, box body finish machining, lug welding and rivet-pulling upper tooth sleeves to realize the machining and manufacturing of the whole water-cooling box body structure.
The utility model discloses water-cooling box structure's beneficial effect is:
the water cooling device mainly aims at a box body with lower height, the box body and the water cooling plate are integrated, and the water inlet and outlet nozzles are designed on the outer side of the box body, so that the structure is simple;
the front frame section properly increases the material thickness, and dense water holes are processed in the water gap and welded with a cold plate FSW to form a water cooling system;
and notches are machined at FSW leakage points of the front frame and the rear frame and the water cooling plate, and the air tightness qualification rate is ensured by using a TIG welding plugging mode, so that the batch production efficiency is improved, and the production cost is reduced.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (9)
1. The utility model provides a water-cooling box structure which characterized in that includes: a front frame, a left frame, a rear frame, a right frame and a water inlet and outlet structure,
the water inlet and outlet structure comprises a water inlet nozzle, a water outlet nozzle and a water cooling plate, the water inlet nozzle and the water outlet nozzle are welded on the front frame, a water channel is arranged on the water cooling plate, one end of the water channel is communicated with the water inlet nozzle, the other end of the water channel is communicated with the water outlet nozzle,
the front side and the rear side of the water cooling plate are respectively welded with the front frame and the rear frame into a whole through FSW, and then the left frame and the right frame are welded on the left side and the right side of the water cooling plate through FSW and CMT to form a water cooling box body structure.
2. The water-cooling box structure of claim 1, wherein the left and right sides of the front frame are provided with triangular water gaps adapted to the water inlet nozzle and the water outlet nozzle, the inner space of the triangular water gap forms a water storage transition area, and water passage holes are distributed in the water storage transition area.
3. The water-cooling box structure of claim 2, wherein the water inlet nozzle and the water outlet nozzle are respectively welded in triangular water ports on the left side and the right side of the front frame, and a TIG welding mode is adopted to fully weld a circle along the joint of the triangular water port and the water inlet nozzle and the water outlet nozzle.
4. The water-cooled tank body structure according to claim 1, wherein a stir-welding support block is provided on a side of the front frame connected to the water-cooled panel for inserting the water-cooled panel, and the water passages of the water-cooled panel are partitioned by the stir-welding support block.
5. The water-cooling box body structure of claim 1, wherein the front side and the rear side of the water-cooling plate are respectively inserted into the front frame and the rear frame, and the splicing seams of the water-cooling plate and the front frame and the rear frame are welded by adopting double-sided FSW.
6. The water-cooled tank structure as claimed in claim 1, wherein the water pipe is connected to an outside of the water-cooled tank structure, and the water flows into the water channel of the water-cooled plate through the water inlet nozzle, flows along a predetermined flow direction in the water channel, and then flows out toward the water outlet nozzle to form a water-cooled circulation system.
7. The water-cooling box body structure of claim 5, wherein the depth of FSW welding between the front frame and the rear frame and the double surfaces of the water-cooling plate is 2 mm.
8. The water-cooling box body structure of claim 1, wherein 4 notches are formed in the side edges of the front frame, the rear frame and the water-cooling plate after the front frame and the rear frame are welded with the water-cooling plate through double-sided FSW, and the 4 notches are formed to form semicircular sector notches.
9. The water-cooling box structure of claim 8, wherein the semicircular fan-shaped notch is sealed by TIG full weld and then ground flat.
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| CN202020321348.1U CN211828891U (en) | 2020-03-16 | 2020-03-16 | Water-cooling box structure |
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| CN202020321348.1U CN211828891U (en) | 2020-03-16 | 2020-03-16 | Water-cooling box structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261819A (en) * | 2020-03-16 | 2020-06-09 | 纽维科精密制造江苏有限公司 | Water-cooling box structure and production process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261819A (en) * | 2020-03-16 | 2020-06-09 | 纽维科精密制造江苏有限公司 | Water-cooling box structure and production process thereof |
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