TWM575222U - Motor cooling structure - Google Patents

Abstract

A motor cooling structure includes a water-cooling structure realized on a casing of a motor, an oil-cooling structure realized in a motor spindle device, and an oil-water heat exchange device that cools a cooling oil of an oil-cooled structure. The water-cooled structure causes cold water to flow back and forth in the rotary water passage of the motor casing to perform heat exchange of the outer casing. The motor spindle unit is cooled by oil cooling technology. The cold water used for cooling the outer casing can also be used as a cooling medium for the cooling oil, so that the warmed oil is cooled by heat exchange in the oil-water heat exchanger.

Description

Motor cooling structure

This creation is related to motor cooling technology. In more detail, this creation uses water-cooling technology to reduce the motor temperature and has the effect of lowering the temperature of the cooling oil.

During the operation of the motor, the motor is warmed up based on the high-speed rotary motion of the rotor and the spindle, the rolling friction of the bearing, the current and the voltage. If the heat source is accumulated inside the motor, the temperature is too high, which will interfere with the normal operation of the internal structure of the motor and is more likely to cause burnout.

The Republic of China new patent M559547 (the same applicant as in this case) discloses a motor oil cooling technology, which specifically proposes a coolant slick return design, which cools the motor spindle unit through a coolant (oil).

The temperature of the coolant (oil) after heat exchange increases, so the temperature-raising coolant (oil) should be designed to match the cooling to maintain the cooling effect of the motor spindle unit.

The purpose of the present invention is to provide a motor cooling structure, which mainly achieves the effect of reducing the temperature of the cooling oil after heat exchange, in addition to the water cooling technology of the outer casing to assist in lowering the temperature of the motor.

The present invention features a motor cooling structure including a water-cooling structure of a motor casing and an oil-cooling structure of a spindle device of the motor; the oil-cooling structure includes an upper portion of the casing At least one fuel injection head, an oil basin disposed at the bottom of the outer casing, and an oil pump disposed on a side of the outer casing; the oil pump is connected to the fuel injection head by an oil inlet pipe, and the cooling oil is introduced into the interior of the motor through the fuel injection head Cooling the spindle device, the heat exchanged warming cooling oil is received by the oil pan; the water cooling structure comprises: a plurality of rotary water passages axially penetrating the outer casing; the cross section of the rotary water passage is curved, surrounding the axis of the outer casing The two ends of the rotary waterway are open to a rear end surface of the outer casing and a front end surface; the rear end surface is combined with a rear end cover, the front end surface is combined with a front end cover; a water inlet is provided at the rear end cover and a water outlet; a water inlet passage, a water outlet passage, and a plurality of rear rotation grooves provided at the rear end cover; the water inlet passage and the water outlet passage axially penetrate the rear end cover, one end of which is respectively associated with the water inlet and the water inlet The water outlet is connected, and the other end is open to the inner side surface of the rear end cover; the inner side surface faces the rear end surface of the outer casing; the rear rotation groove is an arcuate groove opening to the inner side surface of the rear end cover, the plurality of Rear swivel groove surrounds the axis of the rear end cover And the water inlet channel and the water outlet channel respectively correspond to two adjacent the waterway; the rear rotation groove corresponds to the remaining waterway, and one of the rear rotation slots corresponds to two adjacent the waterway; a plurality of front turning grooves of the front end cover, the front turning groove is an arcuate groove opening on an inner side surface of the front end cover; the inner side surface of the front end cover faces the front end surface of the outer casing; the plurality of front turns The groove is disposed around the axis of the front end cover, and the front turning groove corresponds to two adjacent rotating water channels, and the two rotating water channels corresponding to the water inlet channel and the water outlet channel respectively correspond to two adjacent fronts a rotary groove; after the cold water enters the water inlet passage from the water inlet, the cold water flows back and forth in the front rotary groove, the rotary water passage, and the rear rotary groove to perform heat exchange and heat exchange of the outer casing The warmed water is released from the water outlet.

Preferably, a rear water stop gasket is disposed between the outer casing and the rear end cover, and a front water stop gasket is disposed between the outer casing and the front end cover; the front water stop gasket includes a plurality of front turn holes. The rear water stop gasket includes a plurality of rear rotary holes; the shape, position, number and size of the front rotary hole and the rear rotary hole completely correspond to the rotary water passage.

The motor cooling structure further comprises an oil-water heat exchange device comprising an oil-water heat exchanger disposed outside the outer casing, the oil-water heat exchanger introducing the cold oil oil raft of the oil basin with an oil guiding pipe The oil-water heat exchanger is connected to a water inlet pipe connected to the water inlet by a water conduit, and the cold water of the water inlet pipe is distributed to the oil-water heat exchanger as a cooling medium for heat exchange and cooling of the cooling oil. The oil-water heat exchanger delivers the cooled cooling oil to the oil pump through a cold oil output pipe.

The effect of this creation:

The cold water flows back and forth in the front rotary groove, the rotary water passage, and the rear rotary groove to perform heat exchange of the outer casing. The motor spindle unit is cooled by oil cooling technology. The double synchronous heat dissipation inside and outside makes the motor achieve double cooling effect, which plays a good role in the temperature control of the motor.

The cold water used for cooling the outer casing can also be used as a cooling oil for cooling, so that the warmed oil is cooled by heat exchange in the oil-water heat exchanger.

10‧‧‧ Shell

101‧‧‧ front end

102‧‧‧ rear end face

11‧‧‧Rotary waterway

12‧‧‧Rotary waterway

13‧‧‧Rotary waterway

14‧‧‧Rotary waterway

15‧‧‧Rotary waterway

16‧‧‧Rotary waterway

17‧‧‧Rotary waterway

18‧‧‧Rotary waterway

19‧‧‧ Surrounding the oil tank

21‧‧‧ Front water stop gasket

211‧‧‧ front revolving hole

22‧‧‧After water stop gasket

221‧‧‧ rear turning hole

30‧‧‧Back end cover

31‧‧‧First rear rotary slot

32‧‧‧Second rear rotary groove

36‧‧‧ water inlet

361‧‧‧Water inlet

37‧‧‧Water outlet

371‧‧‧Outlet

38‧‧‧ inside

40‧‧‧ front end cover

41‧‧‧First front rotary groove

42‧‧‧Second front rotary groove

43‧‧‧ Third front rotary groove

44‧‧‧fourth front rotary groove

45‧‧‧ inside

51‧‧‧Injection head

52‧‧‧ oil basin

53‧‧‧ oil pump

54‧‧‧Inlet pipe

55‧‧‧fuel tank

61‧‧‧ Oil-water heat exchanger

62‧‧‧ Oil pipe

63‧‧‧Water pipes

33‧‧‧3rd rear rotary groove

34‧‧‧Water access

35‧‧‧Water outlet

64‧‧‧ Cold oil output pipe

70‧‧‧ spindle device

The first picture is a three-dimensional appearance of the creation.

Figure 2 is an exploded perspective view of the first perspective of the creation.

The third figure is an exploded perspective view of the second perspective of the creation.

Figure 4 is a front view of the creation.

Fig. 5 is a cross-sectional view taken along line V-V in Fig. 4.

Figure 6 is a cross-sectional view taken along line VI-VI of Figure 4.

Fig. 7 is a sectional view taken along line VII-VII of Fig. 4.

Figure 8 is a cross-sectional view taken along line VIII-VIII of Figure 4.

Figure 9 is one of the schematic diagrams of the creative pipeline connection.

Figure 10 is the second schematic diagram of the pipeline connection.

Figure 11 is a schematic diagram of water flow in a water-cooled structure.

For the convenience of the description of the central idea described in the column of the creation of the content, it is expressed by a specific embodiment. The proportions, dimensions, and amounts of deformation of the various components in the embodiments are drawn in proportions and dimensions that are advantageous for illustration, rather than actual dimensions, and are not intended to limit the present invention.

As shown in Figures 1, 9, and 10, the present motor cooling structure includes a water-cooling structure implemented in the outer casing 10 of the motor, an oil-cooled structure realized in the motor spindle device, and an oil-water heat exchange device that cools the cooling oil of the oil-cooled structure. The oil-cooled structure may be the patented technology of prior art M559547 or any known technique. The present water-cooling structure includes a water inlet 36 (connected to the water pipe 361) and a water outlet 37 (connecting the water outlet pipe 371) provided in the end cover 30 of the outer casing 10. The water inlet 36 (water inlet pipe 361) introduces cold water into the outer casing 10, and the water heated by the heat exchange is released from the water outlet 37 (outlet pipe 371) to a cooling system, and is cooled and recycled. The oil-cooling structure includes an oil injection head 51 provided on an upper portion of the outer casing 10, an oil basin 52 provided at the bottom of the outer casing 10, and an oil pump 53 provided on a side surface of the outer casing 10. The oil pump 53 is connected to the fuel injection head 51 by the oil inlet pipe 54, and the cooling oil is input to the inside of the casing 10 for the motor. The heat exchange of the spindle unit and the cooling oil heated by the heat exchange are received by the oil basin 52. The oil-water heat exchange device includes a oil-water heat exchanger 61 disposed on a side of the outer casing 10, and the oil-water heat exchanger 61 introduces an oil sump of the oil pan 52 into the oil-water heat exchanger 61 with a water conduit 63. A part of the cold water in the water inlet pipe 361 is introduced into the oil-water heat exchanger 61 as a cooling medium, and the oil-water heat exchanger 61 is connected to the oil pump 53 as a cold oil output pipe 64. In the illustration, the side of the outer casing 10 is further provided with a fuel tank 55 which supplies cooling oil into the oil pan 52.

As shown in FIGS. 2 and 3, the water-cooling structure further includes a water inlet passage 34, a water outlet passage 35, and a plurality of rear rotary grooves (component symbols 31 to 33) provided in the end cover 30 of the outer casing 10; the water inlet passage 34 and the water inlet passage 34 The water outlet passage 35 axially penetrates the rear end cover 30, one end of which communicates with the water inlet 36 and the water outlet 37, and the other end opens to the inner side surface 38 of the rear end cover 30 (with the rear end surface 102 of the outer casing 10) Face to face). The rear rotary groove (component symbols 31 to 33) is an arcuate groove that opens to the inner side surface 38 of the rear end cover 30, and the plurality of rear rotary grooves (component symbols 31 to 33) surround the axial center of the rear end cover 30. Assume. For convenience of description, the plurality of rear rotary grooves are designated as the first rear rotary groove 31, the second rear rotary groove 32, and the third rear rotary groove 33.

The water-cooling structure further includes a plurality of rotary water passages (component symbols 11 to 18) axially penetrating the outer casing 10; the rotary water passage (component symbols 11 to 18) has an arcuate cross section, and both ends are open to the rear end surface of the outer casing 10. 102 and front end face 101; the revolving water channel (component symbols 11 to 18) is disposed around the axis of the outer casing 10. The rear end surface 102 of the outer casing 10 is combined with the rear end cover 30, and a rear water stop gasket 22 is disposed therebetween. The rear water stop gasket 22 has a shape, a position, a quantity, and a size corresponding to the rotary water passage. Rear turn hole 221.

The water-cooling structure further includes a front rotation groove (component symbols 41 to 44) provided at an end cover 40 of the outer casing 10, and the front rotation groove (component symbols 41 to 44) is open to the inner side of the front end cover 40. An arcuate groove of 45 (a surface facing the front end surface 101 of the outer casing 10), the plurality of front revolving grooves (element symbols 41 to 44) are provided around the axis of the front end cover 40. For convenience of description, the plurality of front revolving grooves are designated as the first front revolving groove 41, the second front revolving groove 42, the third front revolving groove 43, and the fourth front revolving groove 44. The front end surface 101 of the outer casing 10 is combined with the front end cover 40 with a front water stop gasket 21 having a shape, a position, a quantity, a size and a rotary water passage (component symbol 11). ~18) The fully corresponding front revolving hole 211.

The correspondence relationship between the water inlet passage 34, the water outlet passage 35, the rear rotary groove (component symbols 31 to 33) and the rotary water passage (component symbols 11 to 18) will be described as in Figs. The water inlet passage 34 and the water outlet passage 35 respectively correspond to two adjacent rotary water passages 11, 18; the rear rotary groove (component symbols 31 to 33) corresponds to the remaining rotary water passages 12, 13, 14, 15, 16 , 17, and one of the rear rotary grooves corresponds to two adjacent rotary water passages, for example, the first rear rotary groove 31 corresponds to the rotary water passages 12, 13, and the second rear rotary groove 32 corresponds to the rotary water passages 14, 15 and the third rear swing. The groove 33 turns the water passages 16, 17.

As shown in FIGS. 4 and 6, the water inlet passage 34, the water outlet passage 35, the rear rotary groove (component symbols 31 to 33), the rotary water passage (component symbols 11 to 18), and the front rotary groove (component symbol 41) are described. The correspondence of ~44). The rotary water passage 11 corresponding to the water inlet passage 34 corresponds to one of the front rotary grooves 41, and the rotary water passage 18 corresponding to the water outlet passage 35 corresponds to the other front rotary groove 44.

The correspondence between the front rotary groove (component symbols 41 to 44) and the rotary water passage (component symbols 11 to 18) will be described as in Figs. 4 and 7. One front rotary groove 41 corresponds to two adjacent rotary water passages 11, 12, and two rotary water passages 11, 18 corresponding to the water inlet passage 34 and the water outlet passage 35 should correspond to two adjacent front rotary grooves 41, 44, respectively. That is, the two rotary water passages corresponding to the water inlet passage 34 and the water outlet passage 35 cannot correspond to the same front rotary groove. For example, the first front turning groove 41 corresponds to The two rotary water passages 11, 12, the second front rotary groove 42 correspond to the two rotary water passages 13, 14, the third front rotary groove 43 corresponds to the two rotary water passages 15, 16, and the fourth front rotary groove 44 corresponds to the two rotary water passages 17 , 18.

The correspondence between the fuel injection head 51 and the oil pan 52 is as shown in Figs. The cooling oil sprayed from the fuel injection head 51 is subjected to heat exchange with the main shaft device 70 via the surrounding oil groove 19 and the oil sling structure of the outer casing 10, and then flows to the oil pan 52 by its own weight. Regarding the fuel injection head 51, the surrounding oil groove 19, the oil slick structure and the cooling oil flow direction, reference may be made to the prior art of the Republic of China, the new patent M559547, which is not a technical feature of this part, and will not be further described herein.

As shown in the figures 2, 3 and 11, the cold water enters the rotary water passage 11 from the water inlet 36 via the water inlet passage 34, and the cold water passing through the rotary water passage 11 is filled in the first front rotary groove 41, and the water in the first front rotary groove 41 is rotated. The water channel 12 flows back and fills the first rear revolving groove 31. The water of the first rear revolving groove 31 flows through the revolving water channel 13 to the second front revolving groove 42, and the water of the second front revolving groove 42 flows to the second through the revolving water channel 14. The water in the second rotary groove 32 flows to the third front rotary groove 43 via the rotary water passage 15, and the water in the third front rotary groove 43 flows through the rotary water passage 16 to the third rear rotary groove 33, and the third rear rotary groove The water of 33 flows to the fourth front turning groove 44 via the turning water passage 17, and the water of the fourth front turning groove 44 flows to the water discharge passage 35 via the turning water passage 18, and is discharged from the water outlet 37.

As apparent from the above description, the cold water flows back and forth in the front rotary groove, the rotary water passage, and the rear rotary groove to perform heat exchange of the outer casing 10, and water heated by heat exchange is released from the water discharge port 37. The motor spindle device 70 is cooled by heat cooling. Internal and external synchronous cooling and cooling make the motor achieve double cooling effect, which plays a good role in the temperature control of the motor.

In addition, the cold water used for cooling the outer casing 10 can also be used as a cooling oil for cooling. The oil in the oil pan 52 is heated by the heat exchange action of the motor spindle device, and is sucked into the oil-water heat exchanger 61. The oil-water heat exchanger 61 refers to the cold water of the water pipe 361 as a cooling medium to raise the temperature of the oil. The oil-water heat exchanger 61 performs heat exchange to cool down, and the cooled cooling oil is then sent to the fuel injection head 51 to supply the motor spindle unit for cooling.

Claims (5)

A motor cooling structure includes: a plurality of rotary water passages axially penetrating a casing of a motor; the cross section of the rotary water passage is curved and arranged around an axis of the outer casing, and both ends of the rotary water passage are open to the outer casing a rear end surface and a front end surface; the rear end surface is combined with a rear end cover, the front end surface is combined with a front end cover; a water inlet and a water outlet provided at the rear end cover; a water inlet passage provided in the rear end cover, a water outlet passage and a plurality of rear rotation slots; the water inlet passage and the water outlet passage extend axially through the rear end cover, one end of which is respectively connected to the water inlet and the water outlet, and the other end is open in the rear end cover a side surface facing the rear end surface of the outer casing; the rear rotation groove is an arcuate groove opening to the inner side surface of the rear end cover, and the plurality of rear rotation grooves are disposed around the axis of the rear end cover; The water inlet channel and the water outlet channel respectively correspond to two adjacent rotating water channels; the rear turning groove corresponds to the remaining one of the rotating water channels, and one of the rear turning grooves corresponds to two adjacent rotating water channels; and the front end cover is disposed at the front end cover Several front turns, this The rotary groove is an arcuate groove opening on an inner side surface of the front end cover; the inner side surface of the front end cover faces the front end surface of the outer casing; the plurality of front rotation grooves are disposed around the axis of the front end cover, and one The front rotary groove corresponds to two adjacent rotary water passages; after the cold water enters the water inlet passage from the water inlet, the cold water bypasses the front rotary groove, the rotary water passage, and the rear rotary groove to perform the outer casing. Heat exchange, water heated by heat exchange is released from the water outlet. The motor cooling structure of claim 1, wherein a rear water stop gasket is disposed between the outer casing and the rear end cover, and a front water stop gasket is disposed between the outer casing and the front end cover; the front water stop pad Slice including number a front rotation hole, the rear water stop gasket includes a plurality of rear rotation holes; the shape, position, number and size of the front rotation hole and the rear rotation hole completely correspond to the rotary water passage. A motor cooling structure of a motor, comprising a water-cooling structure of a casing of a motor and an oil-cooling structure of a spindle device of the motor; the oil-cooling structure comprising at least one fuel injection head disposed at an upper portion of the casing, and a bottom portion disposed at a bottom of the casing An oil pan, an oil pump disposed on a side of the outer casing; the oil pump is connected to the fuel injection head by an oil inlet pipe, and the cooling oil is introduced into the motor through the fuel injection head to cool the spindle device, and the heat exchanged cooling oil is heated The water-cooling structure comprises: a plurality of rotary water passages axially penetrating the outer casing; the cross-section of the rotary water passage is curved and arranged around an axis of the outer casing, and both ends of the rotary water passage are open to the outer casing a rear end surface and a front end surface; the rear end surface is combined with a rear end cover, the front end surface is combined with a front end cover; a water inlet and a water outlet provided at the rear end cover; and a water inlet channel disposed at the rear end cover a water outlet passage and a plurality of rear rotation slots; the water inlet passage and the water outlet passage extend axially through the rear end cover, one end of which is respectively connected to the water inlet and the water outlet, and the other end is open to the rear end cover Inside The inner side faces the rear end surface of the outer casing; the rear turning groove is an arcuate groove opening to the inner side surface of the rear end cover, and the plurality of rear turning grooves are disposed around the axis of the rear end cover; The channel and the water outlet channel respectively correspond to two adjacent rotating water channels; the rear turning groove corresponds to the remaining one of the rotating water channels, and one of the rear turning grooves corresponds to two adjacent rotating water channels; a plurality of front turning grooves, wherein the front turning groove is an arcuate groove opening on an inner side surface of the front end cover; the inner side surface of the front end cover faces the front end surface of the outer casing; the plurality of front turning grooves surround the front end cover The axis of the shaft is opposite to the two adjacent rotating water passages, and the two rotary water passages corresponding to the water inlet passage and the water outlet passage respectively correspond to Two adjacent front turning grooves; after the cold water enters the water inlet channel from the water inlet, the cold water flows back and forth in the front turning groove, the rotating water channel, and the rear turning groove to perform heat exchange of the outer casing. Water heated by heat exchange is released from the water outlet. The motor cooling structure of claim 3, wherein a rear water stop gasket is disposed between the outer casing and the rear end cover, and a front water stop gasket is disposed between the outer casing and the front end cover; the front water stop pad The sheet includes a plurality of front turning holes, and the rear water stopping pad includes a plurality of rear turning holes; the shape, position, number, and size of the front turning holes and the rear turning holes completely correspond to the turning water passage. The motor cooling structure of claim 3, further comprising an oil-water heat exchange device comprising a oil-water heat exchanger disposed outside the outer casing, the oil-water heat exchanger having the oil basin The cold oil sump is introduced therein, and the oil-water heat exchanger is connected to a water inlet pipe connected to the water inlet by a water conduit, and the cold water of the water inlet pipe is distributed to the oil-water heat exchanger as a cooling medium to the cooling oil The heat exchange is cooled, and the oil-water heat exchanger delivers the cooled cooling oil to the oil pump through a cold oil output pipe.