CN110212684B

CN110212684B - Motor rear end cover convenient to heat dissipation

Info

Publication number: CN110212684B
Application number: CN201910481850.0A
Authority: CN
Inventors: 戚荣华; 赵军
Original assignee: Yangzhou Jiechen Electromechanical Technology Co ltd
Current assignee: Yangzhou Jiechen Electromechanical Technology Co ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-11-10
Anticipated expiration: 2039-06-04
Also published as: CN110212684A

Abstract

The invention relates to the technical field of motors and discloses a motor rear end cover convenient for heat dissipation. This motor rear end cap convenient to heat dissipation, it is rotatory to make the runner and the diversion piece of upside rotatory through the starter motor, then it is rotatory to drive downside runner and diversion piece through the revolving axle, the horizontal rotation of runner makes the diversion piece take revolving axle and transmission piece slope rotation after turning to of diversion piece, lead to the U-shaped support to take the gangbar up-and-down reciprocating motion and the opposite direction of left and right sides gangbar motion, lead to the sealing plug to do the piston motion simultaneously and tensile or compress the fourth spring, when the sealing plug upwards, the heat in the back lid and the air in the heat exchanger are inhaled the commuting case and are carried out the heat exchange, when the sealing plug is down, steam in the commuting case passes through honeycomb duct and jet stack and discharges, the louvre discharge on back lid right side is followed to some heat simultaneously, the advantage of high-.

Description

Motor rear end cover convenient to heat dissipation

Technical Field

The invention relates to the technical field of motors, in particular to a motor rear end cover convenient for heat dissipation.

Background

The servo motor is widely applied to various control systems, can convert an input voltage signal into a mechanical output quantity on a motor shaft, and drags a controlled element so as to achieve the control purpose.

The rear end cap of current motor is fixed through a plurality of fastening screw and motor housing usually, because the rotary motion is to the motor, whole fuselage vibrations are great, make the screw pine take off easily, the rear end cap that leads to the motor is insecure, and the screw is more in quantity, not convenient to detach, the radiating mode of ordinary motor is usually through the fan that is located the motor afterbody, the heat dissipation strip of motor housing and the thermovent of rear end cap tail end dispel the heat, the thermovent of motor rear end cap can not satisfy the radiating needs of long-time work of motor, the thermovent radiating effect through motor rear end cap is not obvious, so the radiating motor rear end cap of being convenient for is proposed and the problem that the aforesaid provided is solved.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the motor rear end cover convenient for heat dissipation, which has the advantages of firm connection, convenient disassembly and high-efficiency heat dissipation, and solves the problems that the rear end cover of the conventional motor is usually fixed with a motor shell through a plurality of fastening screws, the whole machine body vibrates greatly due to the rotary motion of the motor, the screws are easy to loosen, the rear end cover of the motor is not firm, the number of the screws is large, the motor is inconvenient to disassemble, the heat dissipation mode of the common motor is that the heat dissipation is usually carried out through a fan positioned at the tail part of the motor, a heat dissipation strip of the motor shell and a heat dissipation port at the tail end of the rear end cover, the heat dissipation port of the motor rear end cover cannot meet the heat dissipation requirement of the motor during long-time work, and the.

(II) technical scheme

In order to realize the purposes of firm connection, convenient disassembly and high-efficiency heat dissipation, the invention provides the following technical scheme: the motor rear end cover convenient for heat dissipation comprises a motor shell, a connecting cover is fixedly arranged on the right side of the motor shell, a rear cover is sleeved on the outer side of the connecting cover, a lock cavity is formed in the rear cover, a push block is slidably connected in the lock cavity, a first spring with one end fixedly connected with the push block is fixedly arranged in the lock cavity, a lock pin with one end penetrating and extending into the connecting cover is fixedly arranged in the push block, the first spring is sleeved on the outer side of the lock pin, a pull rod with one end penetrating and extending into the lock cavity is movably arranged on the left side of the rear cover, a conical block is fixedly arranged at one end of the pull rod positioned in the lock cavity, the conical block is tightly attached to the push block, a second spring with one end fixedly connected with the left side wall in the lock cavity is fixedly arranged on the left side of the conical block, a concave block is fixedly arranged on the left side of the pull rod, a base is slidably connected, a third spring with one end fixedly connected with the limiting block is fixedly arranged inside the base, a bolt with one end penetrating through and extending to the inside of the connecting cover is fixedly arranged inside the limiting block, one end of the bolt far away from the connecting cover penetrates through and extends to the outside of the base, the third spring is sleeved outside the bolt, a mandril with one end penetrating through and extending to the inside of the concave block is fixedly arranged at the top of the base, a heat radiating cover is fixedly arranged at the top of the rear cover, a motor is fixedly arranged on the top wall of the inner cavity of the heat radiating cover, rotating wheels are fixedly arranged at the output end of the motor and the top of the rear cover, turning blocks are fixedly arranged at the opposite sides of the rotating wheels at the upper side and the lower side, the opposite sides of the turning blocks at the upper side and the lower side are fixedly connected with the rotating shaft, a transmission block is fixedly arranged at the outer side of the, the top of commuting case runs through and extends to the top of back lid, and the bottom intercommunication of commuting case has the suction nozzle, and the inside sliding connection of commuting case has the sealing plug, and the inside fixed mounting of commuting case has one end and sealing plug fixed connection's fourth spring, and the top fixed mounting of sealing plug has one end to run through and extend to the gangbar at commuting case top, gangbar and U-shaped support swing joint, the left and right sides one side that the commuting case was carried on the back mutually all communicates the honeycomb duct that has one end to run through and extend to back lid top, and the top fixed mounting of honeycomb duct has the injection pipe.

Preferably, the assembly groove has been seted up on the left side of back lid, the inslot right side wall in assembly groove closely laminates with the right side wall of connecting the cover, and the quantity of lock chamber is four, and the lock chamber is the annular distribution.

Preferably, one side of the push block, which is opposite to the conical block, is an inclined surface, and the inclination angle is consistent with the inclination angle of the conical surface of the conical block.

Preferably, the base is located the left side of back lid, and the quantity of base is four and be annular distribution, and the ejector pin is located the right side of bolt.

Preferably, the ejector pin comprises L shape member and spherical kicking block, L shape member and base fixed connection, and the one end and the spherical kicking block fixed connection of base are kept away from to L shape member, and spherical kicking block runs through and extends to the inside of concave block, and the arc wall with spherical kicking block looks adaptation is seted up on the left side of concave block, and spherical kicking block closely laminates with the arc wall.

Preferably, the inside of connecting the cover is seted up with the locked groove of the diameter looks adaptation of lockpin, and the quantity of locked groove is four and is the annular distribution, and the inside of connecting the cover is seted up with the spacing groove of the diameter looks adaptation of bolt, and six and be the equidistance distribution are no less than to the quantity of spacing groove, and the spacing groove is located the locked groove left side.

Preferably, the top of the heat dissipation cover is provided with flow guide holes, the number of the flow guide holes is not less than fifty, the flow guide holes are distributed at equal intervals, the right side of the rear cover is provided with heat dissipation holes, the lower side of the rear cover is positioned in the heat dissipation cover, and the upper side and the lower side of the rear cover are positioned on the same straight line.

Preferably, the diversion piece is the slope installation, and inclination is sixty degrees, upside the left side and the downside of diversion piece the right side of diversion piece is the perpendicular, both sides from top to bottom one side that the runner is relative is the inclined plane, and inclination is sixty degrees, and the top of commuting case is located the inside of heat exchanger that looses, and the commuting case is the symmetric distribution.

Preferably, the number of the fourth springs is two and is symmetrically distributed, the injection pipes are communicated with the inside of the flow guide pipe, the tops of the injection pipes are communicated with nozzles, and the number of the nozzles on a single injection pipe is not less than five and is equidistantly distributed.

Advantageous effects

Compared with the prior art, the invention provides the motor rear end cover convenient for heat dissipation, and the motor rear end cover has the following beneficial effects:

1. this motor rear end cap convenient to heat dissipation, it is fixed with the connecting cover to cover after will through the lockpin, it is fixed with the connecting cover through the bolt, ejector pin and concave piece remain the extrusion always, make back lid with connect the cover to be connected stably, do not receive motor during operation vibrations influence, firm in connection's advantage has been possessed, make the bolt take stopper upward movement and compress the third spring through the pulling bolt, lead to the bolt and connect the separation of cover, at this moment, slide the base left and make ejector pin and concave piece break away from the contact, at this moment second spring reset area conical block and pull rod left motion, lead to conical block and ejector pad to break away from the contact, make first spring reset and take ejector pad and lockpin to move towards the direction of keeping away from the connecting cover, lead to the lockpin and connect the separation of cover, at this moment can be with back lid and connecting cover separation, firm in connection and the convenient advantage.

2. This motor rear end cap convenient to heat dissipation, it is rotatory to make the runner and the diversion piece of upside rotatory through the starter motor, then it is rotatory to drive downside runner and diversion piece through the revolving axle, the horizontal rotation of runner makes the diversion piece take revolving axle and transmission piece slope rotation after turning to of diversion piece, lead to the U-shaped support to take the gangbar up-and-down reciprocating motion and the opposite direction of left and right sides gangbar motion, lead to the sealing plug to do the piston motion simultaneously and tensile or compress the fourth spring, when the sealing plug upwards, the heat in the back lid and the air in the heat exchanger are inhaled the commuting case and are carried out the heat exchange, when the sealing plug is down, steam in the commuting case passes through honeycomb duct and jet stack and discharges, the louvre discharge on back lid right side is followed to some heat simultaneously, the advantage of high-.

Drawings

Fig. 1 is a schematic structural view of a rear end cover of a motor convenient for heat dissipation according to the present invention;

fig. 2 is an enlarged view of a portion a of the rear end cover of the motor convenient for heat dissipation in the invention shown in fig. 1.

In the figure: the heat dissipation device comprises a motor shell 1, a connecting cover 2, a rear cover 3, a lock cavity 4, a push block 5, a first spring 6, a lock pin 7, a pull rod 8, a conical block 9, a second spring 10, a concave block 11, a base 12, a limiting block 13, a third spring 14, a bolt 15, a mandril 16, a heat dissipation cover 17, a motor 18, a rotating wheel 19, a turning block 20, a rotating shaft 21, a transmission block 22, a U-shaped support 23, a switch box 24, a suction nozzle 25, a sealing plug 26, a fourth spring 27, a linkage rod 28, a flow guide pipe 29 and an injection pipe 30.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a motor rear end cover convenient for heat dissipation includes a motor housing 1, a connecting cover 2 is fixedly installed on the right side of the motor housing 1, locking grooves adapted to the diameter of a lock pin 7 are formed in the connecting cover 2, the number of the locking grooves is four and are distributed annularly, a limiting groove adapted to the diameter of a lock pin 15 is formed in the connecting cover 2, the number of the limiting grooves is not less than six and is distributed equidistantly, the limiting groove is located on the left side of the locking groove, a rear cover 3 is sleeved on the outer side of the connecting cover 2, an assembly groove is formed on the left side of the rear cover 3, the right side wall in the assembly groove is tightly attached to the right side wall of the connecting cover 2, the number of the locking cavities 4 is four, the locking cavities 4 are distributed annularly, a locking cavity 4 is formed in the rear cover 3, a push block 5 is slidably connected to the inside of the locking cavity 4, one side of the push block 5 opposite to a conical block 9 is an inclined plane, and the inclined, a first spring 6 with one end fixedly connected with a push block 5 is fixedly arranged inside the lock cavity 4, a lock pin 7 with one end penetrating and extending to the inside of the connecting cover 2 is fixedly arranged inside the push block 5, the rear cover 3 and the connecting cover 2 are fixed through the lock pin 7, the base 12 and the connecting cover 2 are fixed through a bolt 15, a mandril 16 and a concave block 11 are always kept extruded, so that the rear cover 3 and the connecting cover 2 are stably connected and are not influenced by vibration of the motor during working, the connection is firm, the bolt 15 is pulled to drive a limit block 13 to move upwards and compress a third spring 14 to separate the bolt 15 from the connecting cover 2, the base 12 is slid leftwards to separate the mandril 16 from the concave block 11, the second spring 10 drives a conical block 9 and a pull rod 8 to move leftwards to separate the conical block 9 from the push block 5, so that the first spring 6 is reset to drive the push block 5 and the lock pin 7 to move towards the direction far away from the connecting cover 2, the lock pin 7 is separated from the connecting cover 2, the rear cover 3 can be separated from the connecting cover 2 at the moment, and the connecting cover has the advantages of firm connection and convenient disassembly, the first spring 6 is sleeved outside the lock pin 7, the left side of the rear cover 3 is movably provided with the pull rod 8, one end of the pull rod 8 is penetrated through and extends into the lock cavity 4, one end of the pull rod 8, which is positioned inside the lock cavity 4, is fixedly provided with the conical block 9, the conical block 9 is tightly attached to the push block 5, the left side of the conical block 9 is fixedly provided with the second spring 10, one end of which is fixedly connected with the left side wall in the cavity of the lock cavity 4, the left side of the pull rod 8 is fixedly provided with the concave block 11, the outer side of the connecting cover 2 is slidably connected with the base 12, the base 12 is positioned on the left side of the rear cover 3, the number of the bases 12 is four and is distributed in an annular shape, the ejector rod 16 is positioned on the right, a bolt 15 with one end penetrating and extending into the connecting cover 2 is fixedly arranged inside the limiting block 13, one end of the bolt 15, which is far away from the connecting cover 2, penetrates and extends to the outside of the base 12, a third spring 14 is sleeved outside the bolt 15, a push rod 16 with one end penetrating and extending into the concave block 11 is fixedly arranged at the top of the base 12, the push rod 16 consists of an L-shaped rod piece and a spherical push block, the L-shaped rod piece is fixedly connected with the base 12, one end of the L-shaped rod piece, which is far away from the base 12, is fixedly connected with the spherical push block, the spherical push block penetrates and extends into the concave block 11, an arc-shaped groove matched with the spherical push block is formed at the left side of the concave block 11, the spherical push block is tightly attached to the arc-shaped groove, a heat dissipation cover 17 is fixedly arranged at the top of the rear cover 3, flow guide holes are formed at the top of the heat dissipation cover 17, the number, the lower rotating wheel 19 is positioned in the heat radiating cover 17, the axes of the upper rotating wheel 19 and the lower rotating wheel 19 are positioned on the same straight line, the top wall of the inner cavity of the heat radiating cover 17 is fixedly provided with a motor 18, the output end of the motor 18 and the top of the rear cover 3 are both fixedly provided with the rotating wheels 19, one side opposite to the upper rotating wheel 19 and the lower rotating wheel 19 is both fixedly provided with a turning block 20, the turning block 20 is obliquely arranged, the inclination angle is sixty degrees, the left side of the upper turning block 20 and the right side of the lower turning block 20 are both vertical planes, one side opposite to the upper rotating wheel 19 and the lower rotating wheel 19 is an inclined plane, the inclination angle is sixty degrees, the top of the exchange box 24 is positioned in the heat radiating cover 17, the exchange box 24 is symmetrically distributed, one side opposite to the upper turning block 20 and the lower turning block is both fixedly connected, the inside of the rear cover 3 is fixedly provided with two exchange boxes 24, the top of the exchange box 24 penetrates through and extends to the top of the rear cover 3, the bottom of the exchange box 24 is communicated with a suction nozzle 25, the inside of the exchange box 24 is connected with a sealing plug 26 in a sliding manner, the inside of the exchange box 24 is fixedly provided with four springs 27, one end of each spring 27 is fixedly connected with the sealing plug 26, the four springs 27 are two and are symmetrically distributed, the injection pipes 30 are communicated with the inside of a guide pipe 29, the top of each injection pipe 30 is communicated with a nozzle, the number of the nozzles on each injection pipe 30 is not less than five and are distributed equidistantly, the top of each sealing plug 26 is fixedly provided with a linkage rod 28, one end of each linkage rod penetrates through and extends to the top of the exchange box 24, the linkage rods 28 are movably connected with the U-shaped bracket 23, one sides of the left and right exchange boxes 24, which are opposite, the top of the guide pipe 29 is fixedly provided with the injection pipe 30, the rear end cover of the motor convenient for heat dissipation enables the rotating wheel 19 and the turning block 20 on the upper side to rotate by starting the motor 18, then the rotating wheel 19 and the turning block 20 on the lower side are driven to rotate by the rotating shaft 21, the turning block 20 is driven to obliquely rotate by the turning block 20 after the rotating wheel 19 is horizontally rotated by the turning block 20, the U-shaped support 23 drives the linkage rod 28 to do up-and-down reciprocating motion, the motion directions of the linkage rods 28 on the left side and the right side are opposite, meanwhile, the sealing plug 26 makes piston motion and stretches or compresses the fourth spring 27, when the sealing plug 26 faces upwards, heat in the rear cover 3 and air in the heat dissipation cover 17 are sucked into the exchange box 24 for heat exchange, when the sealing plug 26 faces downwards, hot air in the heat dissipation hole 24 is discharged through the guide pipe 29 and the injection pipe 30, and meanwhile, a part, has the advantage of high-efficiency heat dissipation.

In summary, in the motor rear end cover convenient for heat dissipation, the rear cover 3 is fixed with the connecting cover 2 through the lock pin 7, the base 12 is fixed with the connecting cover 2 through the bolt 15, the ejector rod 16 and the concave block 11 are always kept extruded, so that the rear cover 3 is stably connected with the connecting cover 2, and the motor rear end cover is not influenced by vibration during the operation of a motor, and has the advantage of firm connection, the bolt 15 is driven to move upwards by pulling the bolt 15 with the limit block 13 and compress the third spring 14, so that the bolt 15 is separated from the connecting cover 2, at this time, the ejector rod 16 is separated from the concave block 11 by sliding the base 12 leftwards, the second spring 10 is reset to drive the conical block 9 and the pull rod 8 to move leftwards, so that the conical block 9 is separated from the push block 5, the first spring 6 is reset to drive the push block 5 and the lock pin 7 to move towards the direction far away from the connecting cover 2, so that the lock pin 7 is separated from the, the device has the advantages of firm connection and convenient disassembly, the upper rotating wheel 19 and the turning block 20 rotate by starting the motor 18, then the lower rotating wheel 19 and the turning block 20 are driven to rotate by the rotating shaft 21, the turning block 20 drives the rotating shaft 21 and the transmission block 22 to rotate obliquely after the rotating wheel 19 rotates horizontally by the turning of the turning block 20, the U-shaped support 23 drives the linkage rod 28 to reciprocate up and down, the movement directions of the linkage rods 28 on the left side and the right side are opposite, the sealing plug 26 is driven to do piston movement and stretch or compress the fourth spring 27, when the sealing plug 26 moves upwards, heat in the rear cover 3 and air in the heat dissipation cover 17 are sucked into the exchange box 24 for heat exchange, when the sealing plug 26 moves downwards, hot gas in the exchange box 24 is discharged through the heat dissipation hole 29 and the injection pipe 30, and meanwhile, a part of heat is discharged from the right side of the rear cover 3, and the device has the advantage, the rear end cap who has solved current motor is fixed through a plurality of fastening screw and motor housing usually, because rotary motion is to the motor, whole fuselage vibrations are great, make the screw pine take off easily, the rear end cap that leads to the motor is insecure, and the screw is more in quantity, the not convenient to detach, the radiating mode of ordinary motor is usually through the fan that is located the motor afterbody, the heat dissipation strip of motor housing and the thermovent of 3 tail ends of rear cover dispel the heat, the thermovent of motor rear end cap can not satisfy the radiating needs of long-time work of motor, thermovent radiating effect through motor rear end cap is and obscure problem.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Motor rear end cap convenient to heat dissipation, including motor casing (1), its characterized in that: the right side of the motor shell (1) is fixedly provided with a connecting cover (2), the outer side of the connecting cover (2) is sleeved with a rear cover (3), the inside of the rear cover (3) is provided with a lock cavity (4), the inside of the lock cavity (4) is slidably connected with a push block (5), the inside of the lock cavity (4) is fixedly provided with a first spring (6) of which one end is fixedly connected with the push block (5), the inside of the push block (5) is fixedly provided with a lock pin (7) of which one end is penetrated and extended to the inside of the connecting cover (2), the first spring (6) is sleeved outside the lock pin (7), the left side of the rear cover (3) is movably provided with a pull rod (8) of which one end is penetrated and extended to the inside of the lock cavity (4), one end of the pull rod (8) positioned inside the lock cavity (4) is fixedly provided with a conical block (9), the conical block (9) is tightly attached to the push block (5), the left side of the conical block (9) is fixedly provided with a second spring (, a concave block (11) is fixedly installed on the left side of the pull rod (8), a base (12) is connected to the outer side of the connecting cover (2) in a sliding mode, a limiting block (13) is connected to the inner portion of the base (12) in a sliding mode, a third spring (14) with one end fixedly connected with the limiting block (13) is fixedly installed inside the base (12), a bolt (15) with one end penetrating through and extending to the inner portion of the connecting cover (2) is fixedly installed inside the limiting block (13), one end, far away from the connecting cover (2), of the bolt (15) penetrates through and extends to the outer portion of the base (12), the third spring (14) is sleeved on the outer side of the bolt (15), a push rod (16) with one end penetrating through and extending to the inner portion of the concave block (11) is fixedly installed on the top of the base (12), a heat dissipation cover (17) is fixedly installed on the top of, the output end of the motor (18) and the top of the rear cover (3) are fixedly provided with rotating wheels (19), one opposite side of the rotating wheels (19) on the upper side and the lower side is fixedly provided with turning blocks (20), one opposite side of the turning blocks (20) on the upper side and the lower side is fixedly connected with a rotating shaft (21), the outer side of the rotating shaft (21) is fixedly provided with a transmission block (22), the left side and the right side of the transmission block (22) are movably provided with U-shaped supports (23), two exchange boxes (24) are fixedly arranged in the rear cover (3), the top of each exchange box (24) penetrates through and extends to the top of the rear cover (3), the bottom of each exchange box (24) is communicated with a suction nozzle (25), the inside of each exchange box (24) is slidably connected with a sealing plug (26), a fourth spring (27) with one end fixedly connected with the sealing plug (26) is fixedly arranged in the, a linkage rod (28) with one end penetrating through and extending to the top of the exchange box (24) is fixedly installed at the top of the sealing plug (26), the linkage rod (28) is movably connected with the U-shaped support (23), a guide pipe (29) with one end penetrating through and extending to the top of the rear cover (3) is communicated with one side of the exchange box (24) on the left side and the right side, and an injection pipe (30) is fixedly installed at the top of the guide pipe (29);

the assembly groove has been seted up on the left side of back lid (3), and the inslot right side wall in assembly groove closely laminates with the right side wall of connecting cover (2), and the quantity of lock chamber (4) is four, and lock chamber (4) are the annular distribution.

2. The motor rear end cover facilitating heat dissipation of claim 1, wherein: one side of the push block (5) opposite to the conical block (9) is an inclined surface, and the inclination angle is consistent with the inclination angle of the conical surface of the conical block (9).

3. The motor rear end cover facilitating heat dissipation of claim 1, wherein: the base (12) is located the left side of back lid (3), and the quantity of base (12) is four and be annular distribution, and ejector pin (16) are located the right side of bolt (15).

4. The motor rear end cover facilitating heat dissipation of claim 1, wherein: ejector pin (16) comprise L shape member and spherical kicking block, L shape member and base (12) fixed connection, and the one end and the spherical kicking block fixed connection of base (12) are kept away from to L shape member, and spherical kicking block runs through and extends to the inside of concave block (11), and the arc wall with spherical kicking block looks adaptation is seted up on the left side of concave block (11), and spherical kicking block closely laminates with the arc wall.

5. The motor rear end cover facilitating heat dissipation of claim 1, wherein: the inside of connecting cover (2) is seted up with the locked groove of the diameter looks adaptation of lockpin (7), and the quantity of locked groove is four and is the annular and distribute, and the inside of connecting cover (2) is seted up with the spacing groove of the diameter looks adaptation of bolt (15), and the quantity of spacing groove is no less than six and is the equidistance and distributes, and the spacing groove is located the locked groove left side.

6. The motor rear end cover facilitating heat dissipation of claim 1, wherein: the top of heat dissipation cover (17) has been seted up the water conservancy diversion hole, and the quantity in water conservancy diversion hole is no less than fifty, and the water conservancy diversion hole is the equidistance and distributes, and the louvre has been seted up on the right side of back lid (3), the downside runner (19) are located the inside of heat dissipation cover (17), upper and lower both sides the axle center of runner (19) is located same straight line.

7. The motor rear end cover facilitating heat dissipation of claim 1, wherein: turning piece (20) are the slope installation, and inclination is sixty degrees, upside the left side and the downside of turning piece (20) the right side of turning piece (20) is the perpendicular, upper and lower both sides one side that runner (19) are relative is the inclined plane, and inclination is sixty degrees, and the top of commuting case (24) is located the inside of heat exchanger (17), and commuting case (24) are the symmetric distribution.

8. The motor rear end cover facilitating heat dissipation of claim 1, wherein: the number of the fourth springs (27) is two and is symmetrically distributed, the injection pipes (30) are communicated with the inside of the guide pipe (29), the tops of the injection pipes (30) are communicated with nozzles, and the number of the nozzles on a single injection pipe (30) is not less than five and is equidistantly distributed.