A TEFC structure motor with efficient heat dissipation function

Abstract

The present invention relates to the field of motor technology and discloses a highly efficient heat dissipation TEFC (Transistor-Fiber Optic) motor. The motor comprises a base and a heat dissipation device. The base has an internal air path for dissipating internal heat, and the heat dissipation device is disposed outside the base to exchange and cool the heat dissipated by the internal air path. The highly efficient heat dissipation TEFC motor of the present invention utilizes a heat dissipation device installed on the base, connected to the internal air path, to direct hot air from the base to a heat exchanger, thereby reducing the motor's temperature rise.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a TEFC structure motor with efficient heat dissipation function. Background Art

[0002] TEFC motors are fully enclosed, fan-cooled motors. They can be used in open or fully enclosed enclosures and can operate in extremely harsh environments. TEFC high-power motors have high power density and limited heat dissipation area. To maintain a reasonable temperature rise and adequate reliability, the motor's thermal load and electrical density must be reduced, increasing the amount and volume of effective materials.

[0003] The cooling and heat dissipation structure of the original TEFC structure high-power motor is mainly divided into internal and external air paths. The internal air path consists of an internal fan, a rotor internal air path, and a base heat dissipation air path. The internal fan transfers the heat inside the rotor and motor to the motor base through the internal air path to achieve the purpose of heat dissipation. However, due to the need to ensure the protection level of the motor IP55, the heat dissipation area is small and the heat dissipation effect is poor. Summary of the Invention

[0004] In order to solve the technical problems raised by the background art, the present invention provides a TEFC structure motor with efficient heat dissipation function.

[0005] The present invention is implemented by the following technical solution: a TEFC structure motor with efficient heat dissipation function, comprising:

[0006] A base having an internal air path therein for dissipating internal heat; and

[0007] A heat dissipation device is arranged on the outside of the machine base and is used for heat exchange and cooling of the heat conducted out of the inner air path.

[0008] As a further improvement of the above solution, the air inlet and the air outlet of the internal air path are respectively opened on the outer side wall of the base.

[0009] As a further improvement of the above solution, the air inlet and the air outlet are respectively located at the rear side and the front side of the air flow direction in the inner air path.

[0010] As a further improvement of the above solution, the machine base is arranged horizontally as a whole.

[0011] As a further improvement of the above solution, the heat dissipation device includes at least one heat dissipation heat exchanger, which is installed on the outside of the machine base, and the input end and output end of the heat dissipation heat exchanger are respectively connected to the air outlet and air inlet of the internal air path.

[0012] As a further improvement of the above solution, the heat dissipation heat exchanger is distributed on the outer side wall of the machine base along the axial direction of the machine base.

[0013] The beneficial effects of the present invention are:

[0014] The TEFC structure motor with efficient heat dissipation function of the present invention can guide the hot air in the base to the heat dissipation heat exchanger by installing a heat dissipation device connected to the internal air path on the base, thereby achieving the purpose of reducing the temperature rise of the motor.

[0015] The TEFC structure motor with efficient heat dissipation function of the present invention, through the valve slot, valve block and first adjustment mechanism in the heat dissipation device, can not only adjust the opening and closing degree of the valve channel when the machine base needs to dissipate heat, thereby achieving adaptive adjustment of the air flow in the valve channel, but also can completely close the valve channel when the machine base does not need to dissipate heat, thereby preventing pollutants in the airflow from entering the heat dissipation heat exchanger and causing damage.

[0016] The TEFC structure motor with efficient heat dissipation function of the present invention can stably maintain the position of the valve block after position adjustment through the second moving block and the second adjustment mechanism in the heat dissipation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural diagram of a TEFC structure motor with efficient heat dissipation provided in Example 1 of the present invention;

[0018] Figure 2 A schematic side view of the TEFC structure motor with efficient heat dissipation provided in Example 2 of the present invention;

[0019] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of the first regulating mechanism and the second regulating mechanism in the valve slot;

[0020] Figure 4 for Figure 3 A schematic diagram of the structure enlarged in the middle;

[0021] Figure 5 for Figure 3 The enlarged structural diagram at B in the middle;

[0022] Figure 6 for Figure 3 Schematic diagram of the cross-sectional structure of the middle fixed block;

[0023] Figure 7 for Figure 2 A schematic cross-sectional view of the first regulating mechanism and the second regulating mechanism in another state in the valve slot;

[0024] Figure 8 for Figure 7A schematic cross-sectional view of the first regulating mechanism and the second regulating mechanism in another state in the valve slot;

[0025] Figure 9 for Figure 8 A schematic cross-sectional view of the first regulating mechanism and the second regulating mechanism in another state in the valve slot;

[0026] Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure of the first regulating mechanism and the second regulating mechanism in another state in the valve slot.

[0027] Description of main symbols:

[0028] 1. Machine base; 2. Heat exchanger; 3. Valve slot; 4. Valve channel; 5. Valve block; 6. First connecting rod; 7. Clamping block; 8. First moving block; 9. Hook; 10. Pressing rod; 11. First rotating shaft; 12. Slider; 13. Slide groove; 14. Second connecting rod; 15. Fixed block; 16. Pressing groove; 17. First through groove; 18. Second moving block; 19. Limiting block; 20. Limiting groove; 21. L-shaped rod; 22. Second rotating shaft; 23. Third connecting rod; 24. Fourth connecting rod; 25. Metal shrapnel. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] Example 1

[0031] Please combine Figure 1 A TEFC motor with efficient heat dissipation comprises a base 1 and a heat sink. The base 1 has an internal air path for dissipating internal heat. The heat sink is located outside the base 1 and is used to exchange and cool the heat dissipated by the internal air path.

[0032] In this embodiment, the internal air path mainly includes an internal fan located in the base 1, a rotor internal air path, and a base heat dissipation air path. The internal fan transfers the heat inside the rotor and the motor to the motor base through the internal air path.

[0033] The air inlet and the air outlet of the inner air path are respectively opened on the outer wall of the base 1.

[0034] The air inlet and the air outlet are respectively located at the rear side and the front side of the air flow direction in the inner air path.

[0035] The machine base 1 is arranged horizontally as a whole.

[0036] The heat dissipation device includes at least one heat exchanger 2, which is installed on the outside of the base 1. The input end and the output end of the heat exchanger 2 are respectively connected to the air outlet and the air inlet of the internal air path.

[0037] The heat exchanger 2 is distributed on the outer wall of the base 1 along the axial direction of the base 1 .

[0038] In this embodiment, the heat dissipation heat exchanger 2 can exchange and cool the heat conducted out of the inner air path, and then transport the cooled air back to the inner air path of the machine base 1 to participate in the next heat exchange cycle.

[0039] Example 2

[0040] Please combine Figures 2 to 10 This embodiment is an improved solution of embodiment 1. The heat dissipation device includes a heat dissipation heat exchanger 2 and two valve slots 3. The two valve slots 3 are both arranged on the outside of the machine base 1 and supported on the bottom of the heat dissipation heat exchanger 2. The two valve slots 3 have valve channels 4 vertically connected thereto, and the valve channels 4 are vertically distributed.

[0041] In this embodiment, one valve channel 4 is connected to the input of the heat dissipation heat exchanger 2 at one end and to the air outlet of the internal air path (not shown). Another valve channel 4 is connected to the output of the heat dissipation heat exchanger 2 at the other end and to the air inlet of the internal air path (not shown). The internal fan transfers heat from the rotor and motor through the internal air path to the air outlet of the motor base. The heat then passes through the corresponding valve channel 4 and enters the heat dissipation heat exchanger 2 for heat exchange and cooling. After cooling, the heat then passes through the corresponding valve channel 4 and air inlet back into the motor base 1 to dissipate heat and cool the internal air path of the motor base 1.

[0042] A valve block 5 and a first regulating mechanism are provided in the valve slot 3 and are movably sealed with the valve channel 4 . The first regulating mechanism acts on the valve block 5 to regulate the opening and closing degree of the valve channel 4 so as to regulate the air flow passing through the valve channel 4 .

[0043] It is worth mentioning that when the valve block 5 completely enters the valve slot 3 , it can block air flow, thereby preventing air from entering the heat exchanger 2 and causing pollution when the heat exchanger 2 is not in use.

[0044] The first adjusting mechanism includes a clamping block 7 and a first movable block 8. The clamping block 7 is arranged on the side of the valve block 5 away from the valve channel 4. The first movable block 8 is arranged in the valve slot 3 and can move relatively in the valve slot 3. Two opposite hooks 9 are elastically provided on the first movable block 8, and a clamping space for clamping and fixing the clamping block 7 is formed between the two hooks 9.

[0045] Two opposite first rotating shafts 11 are fixed on the first movable block 8, and two hooks 9 are respectively rotated and sleeved on the outside of the two first rotating shafts 11 at one end away from the valve block 5. A first spring (not marked) is provided between the two hooks 9. When the first spring is not deformed, the distance between the two hooks 9 is smaller than the length of the block 7, so as to completely clamp the block 7, so that the valve block 5 can keep moving synchronously with the first movable block 8.

[0046] The first adjustment mechanism also includes two pressing rods 10 and a fixed block 15 disposed within the valve spool 3. The pressing rods 10 are centrifugally bent along the radial direction of the valve spool 3 to form an "eight" shape. One end of each pressing rod 10 is fixed to the end of each hook 9 away from the block 7, so as to synchronize movement with the block 7. In this embodiment, the hooks 9 and the corresponding pressing rods 10 are integrally formed.

[0047] The fixed block 15 is fixed to the side of the first movable block 8 away from the valve block 5. Two pressing grooves 16 are defined on the side of the fixed block 15 facing the first movable block 8. When the other ends of the two pressing rods 10 enter the two pressing grooves 16, the two pressing rods 10 are brought closer together, and the distance between the two hooks 9 is made greater than or equal to the length of the clamping block 7, thereby facilitating the two hooks 9 to separate from the clamping block 7 and release the clamping fixation of the clamping block 7. A first through-slot 17 is defined in the fixed block 15 for the second connecting rod 14 to slide through, facilitating the movement of the second connecting rod 14 relative to the fixed block 15.

[0048] A first connecting rod 6, coaxial with the valve spool 3, is mounted on one side of the clamping block 7. One end of the first connecting rod 6 is fixed to the valve block 5. The top and bottom of the other side of the clamping block 7 are each provided with an inclined surface (not shown). The outer wall of the hook 9 slides and presses against the inclined surface. The first connecting rod 6 synchronizes the movement of the clamping block 7 and the valve block 5.

[0049] A chute 13 is defined on the inner wall of the valve sump 3, parallel to the direction of movement of the first movable block 8. A slider 12 is positioned within the chute 13, one end of which is secured to the valve block 5 to synchronize its movement. A second spring (not shown) is positioned between one side of the slider 12 and the wall of the chute 13. When the valve block 5 is fully inserted into the valve passage 4, the second spring remains in place.

[0050] In this embodiment, the first adjustment mechanism works as follows: initially, the valve block 5 completely blocks the valve channel 4 (neither the first spring nor the second spring is deformed), and the distance between the two hooks 9 is smaller than the length of the block 7 .

[0051] When the base 1 needs to dissipate heat, the first movable block 8 is first pulled toward the valve channel 4, so that the outer hook walls of the two hooks 9 are squeezed by the sliding of the inclined surface of the block 7, forcing the two hooks 9 to separate from each other, and then the two pressing rods 10 are close to each other (the first spring is squeezed), so that the distance between the two hooks 9 is greater than or equal to the length of the block 7, and the two hooks can be moved to the rear side of the block 7. The two blocks 7 are close to each other under the action of the release of the first spring force to clamp the block 7, and then the first movable block 8 is pulled to move in the direction away from the valve channel 4, so as to drive the block 7, the first connecting rod 6 and the valve block 5 to move synchronously through the hook 9 (the second spring is gradually compressed) to change the opening of the valve channel 4 to adjust the air duct flow.

[0052] When the valve channel 4 needs to be closed, it is only necessary to continue to pull the first movable block 8 in the direction away from the valve channel 4, so that the pressing rod 10 enters the pressing groove 16 of the fixed block 15, forcing the two pressing rods 10 to rotate so that the two hooks 9 are separated from each other, releasing the clamping lock of the clamping block 7. At the same time, the release of the second spring force will drive the slider 12, the valve block 5, the first connecting rod 6 and the clamping block 7 to return to the initial position, thereby completely closing the valve channel 4.

[0053] The heat dissipation device further includes a second moving block 18 and a second adjusting mechanism. A second connecting rod 14 is provided at one end of the second moving block 18 , and one end of the second connecting rod 14 can drive the valve block 5 to move synchronously.

[0054] The second moving block 18 is hollow inside, and limit blocks 19 are inserted on both sides of the second moving block 18. A block groove (not marked) is opened on the second moving block 18, and the second moving block 18 is movably inserted in the block groove and can move relative to the block groove.

[0055] A limit slot 20 is defined in the inner wall of the valve spool 3 in a straight line. A fourth connecting rod 24 is fixed to the side of the second movable block 18 away from the first movable block 8. The fourth connecting rod 24 extends to the outside of the valve spool 3, so that the second movable block 18 can be driven to move within the valve spool 3 via the fourth connecting rod 24, thereby synchronously driving the first movable block 8 to move. The second adjustment mechanism acts on the limit block 19, and is used to achieve a snap-fit ​​engagement with the limit block 19 to effectively fix the position of the valve block 5 within the valve spool 3.

[0056] The second adjustment mechanism includes an L-shaped rod 21. In this embodiment, the number of L-shaped rods 21 can be two, and the two L-shaped rods 21 are symmetrical to each other. The L-shaped rod 21 is housed in the second movable block 18, and its bend is rotatably set on the block wall of the second movable block 18, and can rotate within the second movable block 18. The horizontal section of the second movable block 18 is rotatably connected to the end of the limit block 19 away from the limit groove 20. A third connecting rod 23 is movably inserted in the fourth connecting rod 24. One end of the third connecting rod 23 extends deep into the second movable block 18 and is fixedly inserted with a second rotating shaft 22 to drive the L-shaped rod 21 through the second rotating shaft 22, so that the L-shaped rod 21 rotates around its bend. When the L-shaped rod 21 rotates, its horizontal section can drive the limit block 19 to move relative to the block groove. The second rotating shaft 22 is rotatably inserted on the end of the vertical section of the second movable block 18, and the other end of the third connecting rod 23 extends to the outside of the fourth connecting rod 24. The fourth connecting rod 24 can drive the second moving block 18 to move in the valve spool 3 , and change the relative position of the valve block 5 in the valve channel 4 through the first moving block 8 .

[0057] A metal spring 25 is disposed in the second moving block 18 , and the metal spring 25 is sleeved and fixed to the outside of the third connecting rod 23 . The metal spring 25 protrudes in an arc shape toward one side of the second rotating shaft 22 .

[0058] In this embodiment, the working mode of the second adjustment mechanism is: initially, the limit block 19 is located in one of the limit grooves 20, and the second movable block 18 cannot move. Then the second movable block 18 prevents the first movable block 8 from moving through the second connecting rod 14, thereby effectively maintaining the position of the valve block 5 in the valve groove 3.

[0059] When the position of the valve block 5 needs to be changed, it is necessary to first pull the third connecting rod 23 and drive the L-shaped rod 21 to rotate through the second rotating shaft 22. The L-shaped rod 21 drives the limit block 19 to disengage from the limit groove 20. At the same time, the third connecting rod 23 drives the metal spring 25 to move synchronously so that the metal spring 25 is compressed and deformed. Then, the second moving block 18 can move in the valve groove 3, and then the fourth connecting rod 24 drives the second moving block 18, the second connecting rod 14, the first moving block 8 and the valve block 5 to move synchronously to change the position of the valve block 5 relative to the valve groove 3, thereby completing the adjustment of the opening of the valve groove 3.

[0060] After adjustment, the third connecting rod 23 is released, and the elastic force of the metal spring 25 is released to drive the third connecting rod 23 to return to its initial position. The third connecting rod 23 drives the L-shaped rod 21 to move in the opposite direction through the second rotating shaft 22, so that the L-shaped rod 21 drives the limit block 19 to insert into the limit groove 20 at the corresponding position, so as to limit the position of the second moving block 18 in the valve groove 3, thereby effectively maintaining the adjusted position of the valve block 5 in the valve groove 3.

[0061] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A TEFC structure motor with efficient heat dissipation function, characterized in that: It includes: The base has an internal air path for dissipating internal heat; as well as A heat dissipation device, which is arranged outside the base and is used to exchange heat and cool the heat discharged from the inner air path; The heat dissipation device includes a heat dissipation heat exchanger and two valve slots. The two valve slots are arranged outside the machine base and supported on the bottom of the heat dissipation heat exchanger. The two valve slots are provided with valve channels vertically connected thereto. The valve channels are vertically distributed. One end of one valve channel is connected to the input end of the heat dissipation heat exchanger, and the other end is connected to the air outlet of the internal air path. The other end of the other valve channel is connected to the output end of the heat dissipation heat exchanger, and the other end is connected to the air inlet of the internal air path. The internal fan transfers the heat inside the rotor and the motor to the air outlet of the motor base through the internal air path, and enters the heat dissipation heat exchanger through the corresponding valve channel for heat exchange and cooling. After cooling, it passes through the corresponding valve channel and air inlet again to return to the base to dissipate heat and cool the internal air path of the base; A valve block and a first regulating mechanism are provided in the valve slot, which are in active sealing cooperation with the valve channel. The first regulating mechanism acts on the valve block to regulate the opening and closing degree of the valve channel, thereby regulating the air flow passing through the valve channel. When the valve block is fully inserted into the valve slot, it can block air flow, thus preventing air from entering the heat exchanger and causing contamination when the heat exchanger is not in use. The first adjustment mechanism includes a clamping block and a first movable block. The clamping block is arranged on a side of the valve block away from the valve channel. The first movable block is arranged in the valve slot and can move relatively in the valve slot. Two opposing clamping hooks are elastically arranged on the first movable block. A clamping space is formed between the two clamping hooks for clamping and fixing the clamping block. Two opposite first rotating shafts are fixed on the first movable block, and two hooks are respectively rotated and sleeved on the outside of the two first rotating shafts at one end away from the valve block. A first spring is arranged between the two hooks. When the first spring is not deformed, the distance between the two hooks is smaller than the length of the block, so that the block can be completely clamped, so that the valve block can keep moving synchronously with the first movable block.

2. The TEFC structure motor with high-efficiency heat dissipation function according to claim 1, characterized in that: The air inlet and the air outlet of the inner air path are respectively opened on the outer side wall of the base.

3. The TEFC structure motor with high-efficiency heat dissipation function according to claim 2, characterized in that: The air inlet and the air outlet are respectively located at the rear side and the front side of the air flow direction in the inner air path.

4. The TEFC structure motor with high-efficiency heat dissipation function according to claim 1, characterized in that: The machine base is arranged horizontally as a whole.

5. The TEFC structure motor with high-efficiency heat dissipation function according to any one of claims 1 to 4, characterized in that: The heat dissipation device includes at least one heat dissipation heat exchanger, which is installed on the outside of the machine base. The input end and the output end of the heat dissipation heat exchanger are respectively connected to the air outlet and the air inlet of the inner air path.

6. The TEFC structure motor with high-efficiency heat dissipation function according to claim 5, characterized in that: The heat dissipation heat exchanger is distributed on the outer side wall of the machine base along the axial direction of the machine base.

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