CN105119416B - A kind of new and effective fluid-cooled electrical machine - Google Patents

A kind of new and effective fluid-cooled electrical machine Download PDF

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Publication number
CN105119416B
CN105119416B CN201510613820.2A CN201510613820A CN105119416B CN 105119416 B CN105119416 B CN 105119416B CN 201510613820 A CN201510613820 A CN 201510613820A CN 105119416 B CN105119416 B CN 105119416B
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China
Prior art keywords
bearing bracket
rear end
casing
drive end
end cap
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CN105119416A (en
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刘洪明
章健嘉
陈元宏
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NINGBO JUNWEI ELECTRICAL CO Ltd
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NINGBO JUNWEI ELECTRICAL CO Ltd
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Abstract

The present invention discloses a kind of new and effective fluid-cooled electrical machine, including:Drive end bearing bracket, casing and rear end cap;There is the drive end bearing bracket drive end bearing bracket to enter water nozzle, and the inside of the drive end bearing bracket opens up drive end bearing bracket water channel, and the drive end bearing bracket enters water nozzle and is mutually communicated with the drive end bearing bracket water channel;There is the perforative casing water channel of centerline direction along the casing, the drive end bearing bracket water channel to be mutually communicated with the casing water channel for the inside of the casing;There is the rear end cap rear end cap faucet, the inside of the rear end cap to open up rear end cap water annulus, and the rear end cap faucet is mutually communicated with the rear end cap water annulus, and the rear end cap water annulus is mutually communicated with the casing water channel.Using the present invention, coolant liquid enters water nozzle by drive end bearing bracket and enters drive end bearing bracket, enters casing after shunting the shunting of water route hole by drive end bearing bracket, coolant liquid enters rear end cap after being cooled down to casing, finally flowed out from rear end cap faucet, cooling cycle is realized with this.

Description

A kind of new and effective fluid-cooled electrical machine
Technical field
The present invention relates to a kind of technical field of motor case more particularly to a kind of new and effective fluid-cooled electrical machines.
Background technology
Motor radiating mainly uses air-cooled and liquid cooling both of which.Wherein, wind-cooling heat dissipating is mainly using mounted on motor shaft The fan blade of tail end rotates, and drives motor inner air and outer air to exchange, to reduce motor internal temperature, still, when motor internal-external temperature difference When small, wind-cooling heat dissipating does not reach requirement.Liquid-cooling heat radiation is recycled using coolant liquid, achievees the purpose that Homogeneouslly-radiating.Currently, Liquid-cooling heat radiation is mainly achieved in that, is injected coolant liquid in band cavity motor case, is taken away the heat of motor generation, but electric The amount of coolant liquid is very few in machine casing, is not enough to provide heat sinking function for a long time for motor
Invention content
For the existing above problem of existing fluid-cooled electrical machine heat dissipation, a kind of new and effective fluid-cooled electrical machine is now provided, effectively Ground is that motor radiates.
Specific technical solution is as follows:
A kind of new and effective fluid-cooled electrical machine, including:Drive end bearing bracket, the center of the drive end bearing bracket, which is run through, opens up drive end bearing bracket bearing Hole;Casing, the drive end bearing bracket are installed on one end of the casing;Rear end cap, the center of the rear end cap, which is run through, opens up rear end cap Bearing hole, and the rear end cap is installed on the opposite other end of the casing;Wherein, there is the drive end bearing bracket drive end bearing bracket to enter water The inside of mouth, the drive end bearing bracket opens up drive end bearing bracket water channel, and the drive end bearing bracket enters water nozzle and is mutually communicated with the drive end bearing bracket water channel;Institute The inside of casing is stated with the perforative casing water channel of centerline direction along the casing, the drive end bearing bracket water channel and the casing Water channel is mutually communicated;The rear end cap has rear end cap faucet, and the inside of the rear end cap opens up rear end cap water annulus, institute It states rear end cap faucet to be mutually communicated with the rear end cap water annulus, and the rear end cap water annulus and the casing water Road is mutually communicated;Coolant liquid enters water nozzle by the drive end bearing bracket and enters the drive end bearing bracket water channel, enters institute by the drive end bearing bracket water channel Casing water channel is stated, and the rear end cap water annulus is entered by the casing water channel, it is finally outside by the rear end cap faucet Outflow is realized the drive end bearing bracket, the casing and the rear end cap with this and is cooled down.
Above-mentioned a kind of new and effective fluid-cooled electrical machine, wherein the drive end bearing bracket water channel includes:Drive end bearing bracket water annulus, institute State the inside that drive end bearing bracket water annulus is opened in the drive end bearing bracket along the center wire loop of the drive end bearing bracket, and the drive end bearing bracket Enter water nozzle to be mutually communicated with the drive end bearing bracket water annulus;Several drive end bearing brackets shunt water route hole, and several drive end bearing brackets shunt water Road hole is opened in the end face of casing described in the drive end bearing bracket face along the center wire loop of the drive end bearing bracket, and it is each it is described before End cap shunting water route hole is mutually communicated with the drive end bearing bracket water annulus.
Above-mentioned a kind of new and effective fluid-cooled electrical machine, wherein casing water channel has several, several casing water channel edges The centerline direction annular of the casing is through the inside of the casing, and each casing water channel and a front end Lid shunting water route hole is mutually communicated.
Above-mentioned a kind of new and effective fluid-cooled electrical machine, wherein the rear end cap water annulus is along the center of the rear end cap Wire loop is opened in the end face of casing described in the rear end cap face, and the rear end cap water annulus and each casing Water channel is mutually communicated.
Above-mentioned a kind of new and effective fluid-cooled electrical machine, wherein any one end face of the drive end bearing bracket opens up drive end bearing bracket and enters water Mouth threaded hole, the drive end bearing bracket enter water nozzle threaded hole and are mutually communicated with the drive end bearing bracket water annulus;The drive end bearing bracket enters water nozzle Enter water nozzle threaded hole with the drive end bearing bracket to connect.
Above-mentioned a kind of new and effective fluid-cooled electrical machine, wherein any one end face of the drive end bearing bracket opens up drive end bearing bracket and enters water Mouth threaded hole, the drive end bearing bracket enter water nozzle threaded hole and are mutually communicated with the drive end bearing bracket water annulus;The drive end bearing bracket enters water nozzle Enter water nozzle threaded hole with the drive end bearing bracket by transfer block to connect.
Above-mentioned a kind of new and effective fluid-cooled electrical machine, wherein the end face of casing described in the drive end bearing bracket face has protrusion Ladder boss, the drive end bearing bracket bearing hole runs through the ladder boss, and the side end face of the ladder boss opens up and is used for The slot of mounting O-shaped sealing ring;The raised ladder boss in the end face of casing described in the rear end cap face, the rear end cap axis Bearing bore runs through the ladder boss, and the side end face of the ladder boss opens up the slot for mounting O-shaped sealing ring.
A kind of above-mentioned new and effective fluid-cooled electrical machine, wherein the ladder boss of the rear end cap be provided with it is several around The bearing chamber reinforcing rib of bearing of rear end cover hole circumference array.
Above-mentioned a kind of new and effective fluid-cooled electrical machine, wherein the casing is integrally formed.
Above-mentioned a kind of new and effective fluid-cooled electrical machine, wherein the casing includes several casing piece compositions, several machines The edge of shell pieces is welded to each other to form cyclic annular casing.
A kind of above-mentioned new and effective fluid-cooled electrical machine, wherein any one end face of the rear end cap has ventilative threaded hole, One end of the ventilative threaded hole is mutually communicated with the rear end cap water annulus, the other end matching peace of the ventilative threaded hole Fill a porous plug.
Above-mentioned a kind of new and effective fluid-cooled electrical machine, wherein the end face of the rear end cap back to the casing opens up rear end Lid faucet threaded hole, one end of the rear end cap faucet threaded hole is mutually communicated with the rear end cap water annulus, described The other end of rear end cap faucet threaded hole is connect with the rear end cap faucet.
A kind of above-mentioned new and effective fluid-cooled electrical machine, wherein the end face of the rear end cap back to the casing forms protrusion, The profile of the protrusion is more than the profile of the end face of the rear end cap.
Above-mentioned a kind of new and effective fluid-cooled electrical machine, wherein the fluid-cooled electrical machine includes:Terminal box, the terminal box peace Loaded on the rear end cap, and the rear end cap opens up the delivery outlet of the power line for drawing the terminal box, described defeated Portal and runs through the rear end cap and the ladder boss.
Above-mentioned a kind of new and effective fluid-cooled electrical machine, wherein the fluid-cooled electrical machine further includes:Front support foot props up before described Spike is installed on the lower end of the drive end bearing bracket;Rear support foot, the rear support foot are installed on the lower end of the rear end cap.
The good effect that above-mentioned technical proposal has compared with prior art is:
(1) coolant liquid enters water nozzle by drive end bearing bracket and enters drive end bearing bracket, pass through drive end bearing bracket several drive end bearing brackets shunt water route hole will Entering casing after coolant liquid shunting, coolant liquid enters rear end cap after being cooled down to casing, is realized and collaborated by rear end cap water annulus, It is finally flowed out from rear end cap faucet, cooling cycle is realized with this.
(2) transfer block for entering water nozzle by being connected with drive end bearing bracket uses, and transfer block is installed on to the upper surface of drive end bearing bracket, just Installation is screwed in what drive end bearing bracket entered water nozzle.
(3) by be installed on rear end cap upper surface porous plug and rear end cap back to casing end face formed protrusion It uses so that porous plug can be effectively prevented from a small amount of coolant liquid and be spilled over in terminal box outward in ventilative exhaust.
(4) pass through the design of drive end bearing bracket and the ladder boss of rear end cap so that install and connect when drive end bearing bracket, rear end cap and casing After connecing, there are step gap between drive end bearing bracket, rear end cap and casing, avoid connecing just in case there is coolant liquid spilling that will not flow to this Wire box or other equipment that are connected.
(5) by the design of front support foot and rear support foot, the complete machine fixing intensity of fluid-cooled electrical machine is effectively improved.
Description of the drawings
Fig. 1 is a kind of schematic diagram of new and effective fluid-cooled electrical machine of the present invention;
Fig. 2 be the present invention a kind of new and effective fluid-cooled electrical machine in drive end bearing bracket schematic diagram;
Fig. 3 is the side view of drive end bearing bracket in Fig. 2;
Fig. 4 is the sectional view at drive end bearing bracket A-A in Fig. 3;
Fig. 5 is the sectional view at the places front end cover B-B in Fig. 3;
Fig. 6 be the present invention a kind of new and effective fluid-cooled electrical machine in rear end cap schematic diagram;
Fig. 7 is the side view of rear end cap in Fig. 6;
Fig. 8 is the sectional view at rear end cap C-C in Fig. 7;
Fig. 9 be the present invention a kind of new and effective fluid-cooled electrical machine in casing schematic diagram;
Figure 10 be the present invention a kind of new and effective fluid-cooled electrical machine in casing sectional view;
Figure 11 is the left view of Fig. 1;
Figure 12 A are enlarged drawing at D in Figure 11;
Figure 12 B are enlarged drawing at F in Figure 11;
Figure 13 is a kind of schematic diagram of the another embodiment of new and effective fluid-cooled electrical machine of the present invention;
Figure 14 is the left view of Figure 13;
Figure 15 A are enlarged drawing at G in Figure 14;
Figure 15 B are enlarged drawing at H in Figure 14.
In attached drawing:1, drive end bearing bracket;11, threaded hole;12, drive end bearing bracket enters water nozzle;13, drive end bearing bracket enters water nozzle threaded hole;14, preceding End cap water annulus;15, drive end bearing bracket shunts water route hole;16, drive end bearing bracket bearing hole;17, ladder boss;18, slot;2, casing;21、 Threaded hole;22, casing water channel;23, blasthole;24, apopore;3, rear end cap;31, threaded hole;32, rear end cap faucet;33、 Rear end cap water annulus;34, rear end cap faucet threaded hole;35, ventilative threaded hole;36, porous plug;37, bearing of rear end cover hole; 38, ladder boss;39, slot;310, delivery outlet;311, bearing chamber reinforcing rib;312, raised;4, casing sleeve;41, casing sleeve Water route hole;42, casing sleeve enters water nozzle;43, casing sleeve faucet;5, terminal box;61, front support foot;62, rear support foot; 7, transfer block.
Specific implementation mode
The invention will be further described in the following with reference to the drawings and specific embodiments, but not as limiting to the invention.
It refers to shown in Fig. 1, Fig. 2 and Fig. 6, a kind of new and effective fluid-cooled electrical machine is shown in a kind of preferred embodiment, Include drive end bearing bracket 1, casing 2 and rear end cap 3.Run through in the center of drive end bearing bracket 1 and opens up a drive end bearing bracket bearing hole 16, drive end bearing bracket 1 It is installed on one end of casing 2.In the center of rear end cap 3 through a bearing of rear end cover hole 37 is opened up, rear end cap 3 is installed on casing 2 The other end of opposed front end lid 1.
It is shown in Figure 2, further, several screw threads are opened up along the centerline direction annular of drive end bearing bracket 1 in drive end bearing bracket 1 The end face in hole 11,2 face drive end bearing bracket 1 of casing opens up several threaded holes 21 along the centerline direction annular of casing 2, referring to Fig. 9 institutes Show, several threaded holes 11 of the 21 face drive end bearing bracket 1 of several threaded holes of casing 2.
In addition, several threaded holes 31 are opened up along the centerline direction annular of rear end cap 3 in rear end cap 3, it is shown in Figure 6, And several threaded holes 21 of the 31 face casing 2 of several threaded holes of rear end cap 3.Drive end bearing bracket 1, casing 2 and rear end cap 3 lead to respectively Several screw connection screw thread holes 11, threaded hole 21 and threaded hole 31 are crossed, installation is realized with this.
It refers to shown in Fig. 1 and Fig. 2, in a kind of preferred embodiment, shows that there is drive end bearing bracket 1 drive end bearing bracket to enter water nozzle 12, the inside of drive end bearing bracket 1 opens up drive end bearing bracket water channel, and drive end bearing bracket enters water nozzle 12 and is mutually communicated with drive end bearing bracket water channel.
Further, shown in Figure 5, the end face of 1 face casing 2 of drive end bearing bracket is either back to the end face of casing 2 or preceding Offer drive end bearing bracket on any one end face of end cap 1 and enter water nozzle threaded hole 13, the drive end bearing bracket enter one end of water nozzle threaded hole 13 with Drive end bearing bracket water channel is mutually communicated, which enters the other end of water nozzle threaded hole 13 and drive end bearing bracket enters the interconnection of water nozzle 12.
By taking a kind of preferred embodiment as an example, the upper surface of drive end bearing bracket 1 opens up drive end bearing bracket and enters water nozzle threaded hole 13, and drive end bearing bracket enters Water nozzle 12 is installed on the upper surface of drive end bearing bracket 1, shown in Figure 1, by this way, convenient for entering screwing for water nozzle 12 to drive end bearing bracket Installation.
It is shown in Figure 9, in a kind of preferred embodiment, show that the inside of casing 2 has the center line along casing 2 The perforative casing water channel 22 in direction, drive end bearing bracket water channel are mutually communicated with casing water channel 22.Coolant liquid by drive end bearing bracket enter water nozzle 12 into Enter to drive end bearing bracket water channel, and is entered in casing water channel 22 by drive end bearing bracket water channel.
It refers to shown in Fig. 1 and Fig. 6, in a kind of preferred embodiment, shows that rear end cap 3 has rear end cap faucet 32, the inside of rear end cap 3 opens up rear end cap water annulus 33, and rear end cap faucet 32 is mutually passed through with rear end cap water annulus 33 It is logical, and rear end cap water annulus 33 is mutually communicated with casing water channel 22.
Further, the end face of 3 face casing 2 of rear end cap is either back to any one of the end face of casing 2 or rear end cap 3 Rear end cap faucet threaded hole 34 is opened up on end face, one end and the rear end cap water annulus 33 of the rear end cap faucet threaded hole 34 It is mutually communicated, the other end and the rear end cap faucet 32 of the rear end cap faucet threaded hole 34 are connected with each other.
It refers to shown in Fig. 1 and Fig. 8, by taking a kind of preferred embodiment as an example, after the end face of rear end cap 3 back to casing 2 opens up End cap faucet threaded hole 34, rear end cap faucet 32 are installed on rear end cap 3 back to the end face of casing 2.
Coolant liquid enters water nozzle 12 by drive end bearing bracket and enters drive end bearing bracket water channel, enters casing water channel 22 by drive end bearing bracket water channel, and by Casing water channel 22 enters rear end cap water annulus 33, is finally flowed outwardly by rear end cap faucet 32, is had by coolant liquid with this Drive end bearing bracket 1, casing 2 and rear end cap 3 are realized in effect ground to be cooled down.
Referring to fig. 2 to fig. 5, in a kind of preferred embodiment, show that drive end bearing bracket water channel includes front end bezel ring, Shape water channel 14, in a ring, drive end bearing bracket water annulus 14 is before the center wire loop of drive end bearing bracket 1 is opened in drive end bearing bracket water annulus 14 The inside of end cap 1, and drive end bearing bracket is installed enters the drive end bearing bracket of water nozzle 12 and enter water nozzle threaded hole 13 and 14 phase of drive end bearing bracket water annulus Mutually perforation.
Further, in a kind of preferred embodiment, show that drive end bearing bracket water channel further includes there are several drive end bearing bracket shunting water Road hole 15, several drive end bearing bracket shuntings water route hole 15 are opened in the end of 1 face casing 2 of drive end bearing bracket along the center wire loop of drive end bearing bracket 1 Face, and each drive end bearing bracket shunting water route hole 15 is mutually communicated with drive end bearing bracket water annulus 14.Water is shunted by several drive end bearing brackets Road hole 15 is so that drive end bearing bracket 1 makes drive end bearing bracket 1 itself cool off, in turn with diverter function while coolant liquid shunts Extend the temperature of the bearing inside drive end bearing bracket 1.
And several drive end bearing brackets shunting water route holes 15 along drive end bearing bracket 1 center line circumference array be opened in drive end bearing bracket 1 just To the end face of casing 2, and each drive end bearing bracket shunting water route hole 15 is in the strip of bending, as shown in Figure 5.
In addition, in a kind of preferred embodiment, the radius that drive end bearing bracket shunts water route hole 15 is slightly larger than drive end bearing bracket water annulus The aperture of 14 radius, drive end bearing bracket water annulus 14 shunts water route hole 15 slightly larger than drive end bearing bracket.
It is shown in Figure 9, in a kind of preferred embodiment, show that casing water channel 22 has several, several casings Water channel 22 along casing 2 centerline direction annular through the inside of casing 2, and 22 and one drive end bearing bracket of each casing water channel point Flowing water road hole 15 is mutually communicated, and flowing through several casing water channels 22 by coolant liquid ensures that 2 radial section temperature of casing is impartial.
In addition, extrusion profile may be used in the entirety of casing 2, it is suitable for medium and small casing.
In addition, continuing with shown in Figure 10, in a kind of preferred embodiment, further it is shown that casing 2 includes several casings Piece forms, and the edge of several casing pieces is welded to each other forms cyclic annular welding shape casing with this, is suitable for large-scale and ultra-large type machine Shell.
Further, casing 2 includes four casing pieces, and each casing piece has several casing water channels 22.
It refers to shown in Fig. 6 to Fig. 8.In a kind of preferred embodiment, show that the shape of rear end cap water annulus 33 is in Annular, rear end cap water annulus 33 are opened in the end face of 3 face casing 2 of rear end cap along the center wire loop of rear end cap 3, and after End cap water annulus 33 is mutually communicated with each casing water channel 22, and cooling is realized by the rear end cap water annulus 33 of rear end cap 3 The interflow function of liquid.
It is shown in Figure 13, in a kind of preferred embodiment, show to include transfer block 7, which is connected with Enter water nozzle 12 towards the drive end bearing bracket of any direction, and the transfer block 7 is installed to the upper surface of drive end bearing bracket 1 so that drive end bearing bracket enters Water nozzle 12 enters water nozzle threaded hole 13 with drive end bearing bracket and is mutually communicated.By this way, peace is screwed convenient for enter water nozzle 12 to drive end bearing bracket Dress.
It refers to shown in Fig. 2 and Fig. 3, in a kind of preferred embodiment, shows the end face tool of 1 face casing 2 of drive end bearing bracket There is the ladder boss 17 of protrusion, and drive end bearing bracket bearing hole 16 runs through ladder boss 17.Meanwhile in the side end face of ladder boss 17 The slot 18 for mounting O-shaped sealing ring is opened up, for Matching installation O-ring seal.
It refers to shown in Fig. 6 and Fig. 7, in a kind of preferred embodiment, shows the end face tool of 3 face casing 2 of rear end cap There is the ladder boss 38 of protrusion, and ladder boss 38 is run through in bearing of rear end cover hole 37.Meanwhile in the side end face of ladder boss 38 The slot 39 for mounting O-shaped sealing ring is opened up, for Matching installation O-ring seal.
It refers to shown in Fig. 1 and Fig. 6, in a kind of preferred embodiment, shows to include terminal box 5, in order to save sky Between, terminal box 5 is installed on rear end cap 3.
In addition, the delivery outlet 310 of the power line for drawing terminal box 5 is further opened on rear end cap 3, and the output Rear end cap 3 and ladder boss 38 are run through in hole 310.
It refers to shown in Figure 11 to Figure 12 B and Figure 14 to Figure 15 B, by the design of the ladder boss 17 of drive end bearing bracket 1, makes Proper drive end bearing bracket 1 and the installation connection of casing 2, there are step gaps between drive end bearing bracket 1 and casing 2;Ladder by rear end cap 3 is convex The design of platform 38 so that when rear end cap 3 and the installation connection of casing 2, there are step gap between rear end cap 3 and casing 2, kept away with this Exempting from contingency has coolant liquid spilling that will not flow to terminal box 5 or other equipment that are connected.
In addition, referring to shown in Fig. 6 and Fig. 7, it is additionally provided on ladder boss 38 several around the circle of bearing of rear end cover hole 37 The bearing chamber reinforcing rib 311 of all arrays.
It refers to shown in Fig. 1, Fig. 8 and Figure 13, in a kind of preferred embodiment, shows any one end face of rear end cap 3 On also there is ventilative threaded hole 35, one end of ventilative threaded hole 35 to be mutually communicated with rear end cap water annulus 33, ventilative threaded hole 35 one porous plug 36 of other end Matching installation.Since there may be the temperature difference inside casing 1 during cold and hot for fluid-cooled electrical machine, it is It avoids causing coolant liquid to be inhaled into from breathing phenomenon, porous plug 36 is installed on rear end cap.
By taking a kind of preferred embodiment as an example, the upper surface of rear end cap 3 opens up ventilative threaded hole 35, after porous plug 36 is installed on The upper surface of end cap 3.
In addition, referring to shown in Fig. 1, Fig. 6, Fig. 8 and Figure 13, in a kind of preferred embodiment, shows and carried on the back in rear end cap 3 Protrusion 312 is formed with to the end face of casing 2, and the profile of the protrusion 312 is more than the profile of the end face of rear end cap 3.By convex Play 312 design so that porous plug 36 is effectively prevented from a small amount of coolant liquid and is spilled over to terminal box 5 while ventilative exhaust It is interior.
It refers to shown in Fig. 1 and Figure 13, in a kind of preferred embodiment, shows that fluid-cooled electrical machine includes front support foot 61, front support foot 61 is installed on the lower end of drive end bearing bracket 1, and front support foot 61 is connected with each other by screw and drive end bearing bracket 1, passes through preceding branch Spike 61 effectively improves the complete machine fixing intensity of fluid-cooled electrical machine.
Further, fluid-cooled electrical machine further includes having rear support foot 62, and rear support foot 62 is installed on the lower end of rear end cap 3, after Support leg 62 is connected with each other by screw and rear end cap 3, and the complete machine that fluid-cooled electrical machine is effectively improved by rear support foot 62 is fixed Intensity.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model It encloses, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content Equivalent replacement and obviously change obtained scheme, should all be included within the scope of the present invention.

Claims (7)

1. a kind of new and effective fluid-cooled electrical machine, including:
Drive end bearing bracket, the center of the drive end bearing bracket, which is run through, opens up drive end bearing bracket bearing hole;
Casing, the drive end bearing bracket are installed on one end of the casing;
Rear end cap, the center of the rear end cap, which is run through, opens up bearing of rear end cover hole, and the rear end cap is installed on the casing Opposite other end;It is characterized in that,
There is the drive end bearing bracket drive end bearing bracket to enter water nozzle, and the inside of the drive end bearing bracket opens up drive end bearing bracket water channel, and the drive end bearing bracket enters water Mouth is mutually communicated with the drive end bearing bracket water channel;
The inside of the casing has the perforative casing water channel of centerline direction along the casing, the drive end bearing bracket water channel and institute Casing water channel is stated to be mutually communicated;
The rear end cap has rear end cap faucet, and the inside of the rear end cap opens up rear end cap water annulus, the rear end cap Faucet is mutually communicated with the rear end cap water annulus, and the rear end cap water annulus is mutually passed through with the casing water channel It is logical;
Coolant liquid enters water nozzle by the drive end bearing bracket and enters the drive end bearing bracket water channel, enters the casing water by the drive end bearing bracket water channel Road, and the rear end cap water annulus is entered by the casing water channel, it is finally flowed outwardly by the rear end cap faucet, with this The drive end bearing bracket, the casing and the rear end cap are realized and cooled down;
Any one end face of the rear end cap has ventilative threaded hole, one end and the rear end cap annular of the ventilative threaded hole Water channel is mutually communicated, one porous plug of other end Matching installation of the ventilative threaded hole;
The end face of the rear end cap back to the casing opens up rear end cap faucet threaded hole, the rear end cap faucet threaded hole One end be mutually communicated with the rear end cap water annulus, the other end of the rear end cap faucet threaded hole and the rear end cap Faucet connects;And
The end face of the rear end cap back to the casing forms protrusion, and the profile of the protrusion is more than the end face of the rear end cap Profile;
The drive end bearing bracket water channel includes:
Drive end bearing bracket water annulus, the drive end bearing bracket water annulus are opened in the drive end bearing bracket along the center wire loop of the drive end bearing bracket Inside, and the drive end bearing bracket enters water nozzle and is mutually communicated with the drive end bearing bracket water annulus;
Several drive end bearing brackets shunt water route hole, and several drive end bearing bracket shunting water route holes are opened up along the center wire loop of the drive end bearing bracket The end face of casing described in the drive end bearing bracket face, and each drive end bearing bracket shunting water route hole and the drive end bearing bracket annular water Road is mutually communicated;
The raised ladder boss in the end face of casing described in the drive end bearing bracket face, the drive end bearing bracket bearing hole run through the rank Terraced boss, and the side end face of the ladder boss opens up the slot for mounting O-shaped sealing ring;
The rank is run through in the raised ladder boss in the end face of casing described in the rear end cap face, the bearing of rear end cover hole Terraced boss, and the side end face of the ladder boss opens up the slot for mounting O-shaped sealing ring;
The ladder boss of the rear end cap is provided with several bearing chambers around bearing of rear end cover hole circumference array and reinforces Muscle.
2. new and effective fluid-cooled electrical machine according to claim 1, which is characterized in that
Casing water channel has several, several casing water channels along the casing centerline direction annular through the machine The inside of shell, and each casing water channel is mutually communicated with a drive end bearing bracket shunting water route hole.
3. new and effective fluid-cooled electrical machine according to claim 2, which is characterized in that
The rear end cap water annulus is opened in casing described in the rear end cap face along the center wire loop of the rear end cap End face, and the rear end cap water annulus is mutually communicated with each casing water channel.
4. new and effective fluid-cooled electrical machine according to claim 1, which is characterized in that including:
Any one end face of the drive end bearing bracket opens up drive end bearing bracket and enters water nozzle threaded hole, the drive end bearing bracket enter water nozzle threaded hole with it is described Drive end bearing bracket water annulus is mutually communicated;
The drive end bearing bracket, which enters water nozzle and enters water nozzle threaded hole with the drive end bearing bracket, to be connect;Or
The drive end bearing bracket, which enters water nozzle and enters water nozzle threaded hole with the drive end bearing bracket by transfer block, to be connect.
5. new and effective fluid-cooled electrical machine according to claim 1, which is characterized in that
The casing is integrally formed;Or
The casing includes several casing piece compositions, and the edge of several casing pieces is welded to each other to form cyclic annular casing.
6. new and effective fluid-cooled electrical machine according to claim 1, which is characterized in that the fluid-cooled electrical machine includes:
Terminal box, the terminal box are installed on the rear end cap, and the rear end cap is opened up for drawing the terminal box Power line delivery outlet, the delivery outlet run through the rear end cap and the ladder boss.
7. new and effective fluid-cooled electrical machine according to claim 1, which is characterized in that the fluid-cooled electrical machine further includes:
Front support foot, the front support foot are installed on the lower end of the drive end bearing bracket;
Rear support foot, the rear support foot are installed on the lower end of the rear end cap.
CN201510613820.2A 2015-09-23 2015-09-23 A kind of new and effective fluid-cooled electrical machine Active CN105119416B (en)

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