CN217159437U - Welding-free water-cooling motor shell and motor thereof - Google Patents
Welding-free water-cooling motor shell and motor thereof Download PDFInfo
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- CN217159437U CN217159437U CN202121354273.8U CN202121354273U CN217159437U CN 217159437 U CN217159437 U CN 217159437U CN 202121354273 U CN202121354273 U CN 202121354273U CN 217159437 U CN217159437 U CN 217159437U
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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
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Abstract
The utility model discloses an exempt from welded water-cooled motor casing, including the casing, locate water inlet and delivery port on the casing, locate the front end housing of casing front end and locate the rear end cap of casing rear end, casing and preceding, rear end cap fixed connection, its characterized in that: the shell is provided with a plurality of axial water channels which are distributed circumferentially and penetrate through the shell, the front end cover and the rear end cover are provided with a plurality of arc-shaped water channels which are used for being connected with the axial water channels, the arc-shaped water channels are connected with the axial water channels in series, and the water inlet and the water outlet are arranged on the water channels. The utility model discloses an axial water course of casing and preceding, the arc water course of rear end cap form the structural style of U type water course jointly, need not use welding process to carry out the shutoff to the water course both ends, have avoided improving product yield because welding defect or welding slag fall into the water course and influence product quality and yield, reduce product cost.
Description
Technical Field
The utility model relates to a motor casing technical field especially relates to an exempt from welded water-cooling motor casing and motor thereof.
Background
At present, cooling water channels of a water-cooled motor are inner water channels in a machine shell and mainly have two forms of spiral water channels and U-shaped water channels. The spiral water channel needs to be cast, the U-shaped water channel can be formed by adopting an extrusion die, and the forming process is simpler. Meanwhile, the U-shaped water channel casing is made of extrusion molding materials, so that the casing length can be adjusted, the U-shaped water channel casing can be more suitable for motors with the same diameter series and different lengths, and the universality of the casing is stronger.
The current U-shaped water channel shell basically adopts a welding process to seal two ends of a section bar. In the welding process, welding defects are easily caused, and the rejection rate is high. Meanwhile, in the welding process, welding slag is easy to fall into the water channel, so that the water channel is blocked. For example, in patent CN110666464A, a friction stir welding process is proposed, but in the processing of the casing, steps are still required to be processed inside the water channel of the casing, and then the casing is welded by using a friction welding process. In the welding process, welding defects are easy to occur, and the product quality and the yield are influenced. Meanwhile, in terms of process, rough machining is needed firstly, then welding is needed, finish machining is needed after welding, and the process is too complex and high in cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to above-mentioned prior art exists provides a product yield height and with low costs exempt from welded water-cooled motor casing and motor thereof.
The utility model discloses the technical scheme who adopts does: the utility model provides an exempt from welded water-cooled motor casing, includes the casing, locates water inlet and delivery port on the casing, locates the front end housing of casing front end and locates the rear end cap of casing rear end, casing and preceding, rear end cap fixed connection, its characterized in that: the shell is provided with a plurality of axial water channels which are distributed circumferentially and penetrate through the shell, the front end cover and the rear end cover are provided with a plurality of arc-shaped water channels which are used for being connected with the axial water channels, the arc-shaped water channels are connected with the axial water channels in series, and the water inlet and the water outlet are arranged on the water channels.
According to the technical scheme, the arc-shaped water channels comprise a plurality of first arc-shaped water channels used for connecting two adjacent axial water channels and two second arc-shaped water channels used for plugging one ends of the axial water channels; the second arc-shaped water channel is arranged at the end head of the adjacent axial water channel, and the axial water channel and the arc-shaped water channel are connected in series to form a one-way water channel.
According to the technical scheme, when the number of the axial water channels is odd, the second arc-shaped water channels are not positioned at the same side; and when the number of the axial water channels is even, the second arc-shaped water channels are positioned at the same side.
According to the technical scheme, the water inlet and the water outlet are respectively arranged on the axial water channel connected with the second arc-shaped water channel.
According to the technical scheme, the arc-shaped water channel comprises a plurality of first arc-shaped water channels used for connecting two adjacent axial water channels, and the first arc-shaped water channels and the axial water channels are connected in series to form a circulating water channel; a blocking block is arranged in any axial water channel to divide the circulating water channel into one-way water channels; the water inlet, the water outlet and the blocking block are arranged on the same axial water channel and are positioned at two ends of the blocking block.
According to the technical scheme, sealing devices are arranged between the front end cover and the shell and between the rear end cover and the shell; the sealing device adopts sealant or a profiling sealing ring; if the profiling sealing ring is selected, the front end cover and the rear end cover are provided with matched sealing grooves.
According to the technical scheme, the positioning sleeves are arranged between the front end cover and the shell, and are connected through the bolts.
According to the technical scheme, the wave-shaped auxiliary heat dissipation teeth are arranged inside the axial water channel, and the outer surface of the shell is also provided with a plurality of groups of auxiliary heat dissipation teeth.
According to the technical scheme, the arc-shaped water channels of the front end cover and the rear end cover are formed by casting, and the axial water channel of the shell is formed by extrusion.
According to the technical scheme, the motor is characterized by comprising any one of the welding-free water-cooling motor shell.
The utility model discloses the beneficial effect who gains does:
1. compared with the structure that the U-shaped water channel is completely arranged in the shell in the prior art, the structure that the axial water channel of the shell and the arc-shaped water channels of the front end cover and the rear end cover form the U-shaped water channel together does not need to use a welding process to block two ends of the water channel, and avoids the influence on product quality and yield caused by welding defects or welding slag falling into the water channel; in addition, the process steps in the machining process are reduced, the existing welding and plugging scheme needs to process an arc-shaped water channel in the shell by a machining method, then the shell is plugged by the arc-shaped blocks, then the arc-shaped blocks and the shell are welded and sealed, and the welding surface needs to be turned after welding.
2. The arc-shaped water channels of the front end cover and the rear end cover are formed by casting, and the axial water channel of the shell is formed by extrusion, so that the process is simplified, the yield of products is improved, and the cost of the products is reduced.
3. The shell and the end cover are connected by adopting the deep seam allowance, so that the loading capacity is enhanced, and the sealing reliability in loading is improved.
4. The circumference relative position of casing and end cover is fixed a position with the position sleeve, avoids the dislocation installation of circumferencial direction, the installation is convenient.
5. The wave-shaped auxiliary heat dissipation teeth are arranged inside the water channel of the machine shell, and the auxiliary heat dissipation teeth are arranged outside the machine shell, so that the heat dissipation effect is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the housing according to the present invention;
fig. 3 is a schematic view of an arcuate water channel of an end cap according to an embodiment of the present invention;
fig. 4 is an expanded view of a first communicating waterway according to an embodiment of the present invention;
fig. 5 is an expanded view of a second communicating waterway according to an embodiment of the present invention;
FIG. 6 is an expanded view of a third communicating waterway according to an embodiment of the present invention;
in the figure: 1. a housing; 2. a water inlet; 3. a water outlet; 4. a front end cover; 5. a rear end cap; 6. an axial water channel; 7. an arc-shaped water channel; 7-1, a first arc-shaped water channel; 7-2, a second arc-shaped water channel; 8. a positioning sleeve; 9. profiling a sealing ring; 10. auxiliary heat dissipation teeth; 11. a plug.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figure 1, the utility model provides a exempt from welded water-cooled motor casing, including casing 1, locate water inlet 2 and delivery port 3 on the casing, locate the front end housing 4 of casing front end and locate the rear end housing 5 of casing rear end, casing and preceding, rear end housing fixed connection. The casing is provided with a plurality of axial water channels 6 which are circumferentially distributed and penetrate through the casing, the front end cover and the rear end cover are provided with a plurality of arc-shaped water channels 7 which are used for being connected with the axial water channels, the axial water channels are connected in series through the arc-shaped water channels, and the water inlet and the water outlet are respectively arranged on the water channels, can be arranged on the axial water channels and also can be arranged on the arc-shaped water channels.
In some embodiments, the arcuate channels are divided into a first arcuate channel 7-1 for connecting two adjacent axial channels and a second arcuate channel 7-2 for blocking one end of a single axial channel. The second arc-shaped water channel arranged on the end cover has two modes, one mode is that the existing arc-shaped water channel is matched with the end head of the axial water channel in size and is arranged on the front end cover and the rear end cover; and the other is not really existing and refers to the positions on the front end cover and the rear end cover for plugging the end heads of the axial water channel. The number of the second arc-shaped water channels is two, and the two second arc-shaped water channels are arranged at the end heads of the two adjacent axial water channels; when the number of the axial water channels is odd, the two second arc-shaped water channels are respectively arranged on the front end cover and the rear end cover; when the number of the axial water channels is even, the two second arc-shaped water channels are simultaneously distributed on the front end cover or the rear end cover. The first arc-shaped water channel of the front end cover is connected with two adjacent axial water channels to form a plurality of U-shaped water channels (if the number of the axial water channels is odd, one axial water channel is remained), the first arc-shaped water channel of the rear end cover is connected with the end points of the two adjacent U-shaped water channels (if the number of the axial water channels is odd, one first arc-shaped water channel is connected with the end point of the U-shaped water channel and the end point of the remained axial water channel), and the axial water channel and the arc-shaped water channels form a one-way cooling water channel from the water inlet to the water outlet. The water inlet and the water outlet are respectively arranged at the head end and the tail end of the unidirectional cooling water channel, can be arranged on the axial water channel and also can be arranged on the arc water channel.
In other embodiments, as shown in FIG. 5, the arcuate flumes include only a first arcuate flume for connecting two adjacent axial flumes, where the number of axial flumes is an even number. The first arc-shaped water channels of the front end cover and the rear end cover are arranged in a staggered mode, when the front end face and the rear end face are combined with the two ends of the shell, the arc-shaped water channels and the axial water channels form a circulating cooling water channel which turns back and forth, at the moment, a blocking object 11 is arranged in any axial water channel to cut off the circulating water channel, the water inlet and the water outlet are arranged at the two ends of the blocking object, and a one-way cooling water channel from the water inlet to the water outlet is formed.
In some embodiments, the arc-shaped water channels are arranged on the joint surfaces of the front end cover and the rear end cover and the two ends of the shell, and the arc-shaped water channels can be directly formed in the blank casting stage without subsequent machining. The outer circles of the front end cover and the rear end cover are provided with a plurality of through holes for installing bolts to fix the front end cover and the rear end cover with the shell, wherein one through hole is provided with a positioning sleeve 8 to fix the relative positions of the shell and the front end cover and the rear end cover in the circumferential direction, and the arc-shaped water channels of the front end cover and the rear end cover are matched with the axial water channel of the shell.
In some embodiments, a profiling sealing ring 9 is arranged between the front end face and the rear end face and the casing, and is used for sealing the water channels of the front end cover, the rear end cover and the casing and sealing the whole motor casing end cover combination surface. The sealing glue can be used for replacing the profiling sealing ring, when the sealing glue is used for sealing, the joint surface of the end cover and the shell does not need to be processed with a sealing groove, the end face can be processed by turning, and the product cost can be reduced.
In some embodiments, the housing is formed by extrusion, the inner cylindrical surface is a smooth circle, and the housing and the stator assembly of the motor are connected by interference fit. The axial position of the stator assembly can be ensured by the assembling tool. Therefore, the machining of the shell only needs to machine the inner circle and the end surfaces at two sides and can be completed only by turning. The excircle of the shell is provided with a plurality of threaded holes for connecting the end cover and the shell. An axial water channel is arranged in the motor shell, and a wave-shaped auxiliary heat dissipation tooth 10 is arranged in the axial water channel. The heat generated by the motor stator is transferred to the shell combined with the stator, the shell transfers the heat to the cooling liquid in the shell axial water channel, and the cooling liquid flows in a circulating mode and conveys the heat to the radiator of the vehicle. The wave-shaped auxiliary heat dissipation teeth in the axial water channel of the shell can increase the heat exchange speed and improve the heat dissipation effect. The outer circular surface of the casing is provided with a plurality of auxiliary radiating teeth, so that part of heat can be radiated to the air through flowing air, and the radiating effect can be improved to a certain degree.
In some embodiments, the connection between the casing and the end covers is performed by using a deep seam allowance, which is deeper than a common seam allowance, so that the connection strength between the front end cover and the casing and the connection strength between the rear end cover and the casing can be improved, and the deformation caused by the load of bending moment after the connection between the casing and the front end cover and the connection between the casing and the rear end cover can be avoided, thereby affecting the sealing effect and the reliability.
Preferably, the arc-shaped water channels of the front end cover and the arc-shaped water channels of the rear end cover can be alternately distributed.
The above embodiments are only used for the design idea and features of the present invention, and the purpose is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all the equivalent changes or modifications made according to the principles and design ideas disclosed by the present invention are within the protection scope of the present invention.
Claims (9)
1. The utility model provides a exempt from welded water-cooled motor casing, includes the casing, locates water inlet and delivery port on the casing, locates the front end housing of casing front end and locates the rear end cap of casing rear end, casing and preceding, rear end cap fixed connection, its characterized in that: the shell is provided with a plurality of axial water channels which are distributed circumferentially and penetrate through the shell, the front end cover and the rear end cover are provided with a plurality of arc-shaped water channels which are used for being connected with the axial water channels, the arc-shaped water channels are connected with the axial water channels in series, and the water inlet and the water outlet are arranged on the water channels.
2. The weld-free water-cooled motor housing of claim 1, wherein: the arc-shaped water channels comprise a plurality of first arc-shaped water channels used for connecting two adjacent axial water channels and two second arc-shaped water channels used for plugging one ends of the axial water channels; the second arc-shaped water channel is arranged at the end head of the adjacent axial water channel, and the axial water channel and the arc-shaped water channel are connected in series to form a one-way water channel.
3. The weld-free water-cooled motor housing of claim 2, wherein: when the number of the axial water channels is odd, the second arc-shaped water channels are not positioned at the same side; and when the number of the axial water channels is even, the second arc-shaped water channels are positioned at the same side.
4. The weld-free water-cooled motor housing of claim 2, wherein: the water inlet and the water outlet are respectively arranged on the axial water channel connected with the second arc-shaped water channel.
5. The weld-free water-cooled motor housing of claim 1, wherein: the arc-shaped water channels comprise a plurality of first arc-shaped water channels used for connecting two adjacent axial water channels, and the first arc-shaped water channels and the axial water channels are connected in series to form a circulating water channel; a blocking block is arranged in any axial water channel to divide the circulating water channel into one-way water channels; the water inlet, the water outlet and the blocking block are arranged on the same axial water channel and are positioned at two ends of the blocking block.
6. The weld-free water-cooled motor housing according to any one of claims 1-5, wherein: sealing devices are arranged between the front end cover and the shell and between the rear end cover and the shell; the sealing device adopts sealant or a profiling sealing ring; if the profiling sealing ring is selected, the front end cover and the rear end cover are provided with matched sealing grooves.
7. The weld-free water-cooled motor housing according to any one of claims 1-5, wherein: and positioning sleeves are arranged between the front end cover and the shell and are connected with the shell through bolts.
8. The weld-free water-cooled motor housing according to any one of claims 1-5, wherein: the axial water channel is internally provided with wave-shaped auxiliary heat dissipation teeth, and the outer surface of the shell is also provided with a plurality of groups of auxiliary heat dissipation teeth.
9. An electric machine comprising a weld-free water cooled machine housing according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121354273.8U CN217159437U (en) | 2021-06-18 | 2021-06-18 | Welding-free water-cooling motor shell and motor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121354273.8U CN217159437U (en) | 2021-06-18 | 2021-06-18 | Welding-free water-cooling motor shell and motor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217159437U true CN217159437U (en) | 2022-08-09 |
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ID=82658955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121354273.8U Active CN217159437U (en) | 2021-06-18 | 2021-06-18 | Welding-free water-cooling motor shell and motor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217159437U (en) |
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2021
- 2021-06-18 CN CN202121354273.8U patent/CN217159437U/en active Active
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