CN217270442U

CN217270442U - Cooling device of generator set

Info

Publication number: CN217270442U
Application number: CN202221419930.7U
Authority: CN
Inventors: 杨全; 杜靖华; 张如君; 成见
Original assignee: Chongqing Huashidan Power Technology Co ltd
Current assignee: Chongqing Huashidan Power Technology Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-08-23
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a generating set's cooling device, including the frame one side on the frame has set firmly the engine, and the opposite side is equipped with the electricity generation frequency conversion equipment the intercommunication is equipped with the silencer on the engine, the electricity generation frequency conversion equipment includes along the dc-to-ac converter subassembly and the magneto subassembly of the mutual intercommunication setting of air inlet direction, the magneto subassembly includes the impeller, the impeller is connected with the output of engine, and the last corresponding position of this magneto subassembly still communicates and is equipped with the wind scooper, the air outlet of wind scooper is towards the silencer. The utility model discloses set up the engine and drive the impeller rotation to make cooling air give dc-to-ac converter and motor cooling heat dissipation in proper order, and in silencer position exhaust, realize the heat dissipation cooling to the muffler, under the prerequisite that original wind channel set up, realize the synchronous cooling to two above part positions, compact structure is practical, the simple operation.

Description

Cooling device of generator set

Technical Field

The utility model relates to a generator manufacturing technical field, in particular to generating set's cooling device.

Background

In view of the reason of the installation structure, when the generator is cooled, the blowing cooling mode is adopted, so that cooling air is difficult to effectively and comprehensively enter the motor for cooling, the temperature of the motor is continuously increased and cannot be timely cooled in the use process, the durability and the service life are not in accordance with the requirement, and the output power is seriously attenuated; the related assembly parts of the existing generator set mainly generate heat by an inverter, a motor and a silencer, and the arrangement of one air duct can cool the positions of two parts at most at the same time, so that a multi-channel air duct needs to be designed, and the whole structure is more complex and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a cooling device of generating set that can in time cool down for motor and dc-to-ac converter, can effectively cool down for the silencer simultaneously again.

The technical scheme of the utility model as follows:

the utility model provides a cooling device of generating set, includes the frame one side on the frame has set firmly the engine, and the opposite side is equipped with electricity generation frequency conversion equipment the intercommunication is equipped with the silencer on the engine, the magneto subassembly includes along the dc-to-ac converter subassembly and the magneto subassembly of the mutual intercommunication setting of air inlet direction, the magneto subassembly includes the impeller, the impeller is connected with the output of engine, and the last corresponding position of this magneto subassembly still communicates and is equipped with the wind scooper, the air outlet of wind scooper is towards the silencer.

Adopt above-mentioned structure, the starter motor drives the impeller and rotates, it flows to drive the air, because communicate each other between dc-to-ac converter subassembly and the magneto subassembly, flowing air passes through dc-to-ac converter subassembly and magneto subassembly in proper order, and take away the produced heat of dc-to-ac converter and motor simultaneously, the direction of exhaust cooling air through the wind scooper guides, discharge in the silencer position, directly blow in the outside of silencer, under the prerequisite that keeps the original wind channel of complete machine to set up unchangeably, realize simultaneously for the purpose of inverter, motor and silencer cooling down.

In order to facilitate the rapid suction and discharge of cooling air and simplify the structure, the inverter assembly preferably comprises a front cover fixedly arranged on the base, a groove is formed in one side of the inner wall of the front cover, at least one air outlet hole is formed in the groove, a connecting through hole is formed in the middle of the groove, an inverter is fixedly arranged on the other side of the inner wall of the front cover, a rear cover is screwed on the front cover, and a louver is arranged on the rear cover.

In order to facilitate the installation, avoid the transmission to interfere, as preferred, the magneto subassembly still includes the support frame one side of support frame sets firmly on the front shroud, and the opposite side has set firmly the motor dustcoat, inlays at the middle part of this support frame and is equipped with support bearing last rotation is equipped with the fixed disk support bearing set firmly the impeller on the fixed disk.

In order to simplify the installation structure, preferably, a positioning boss is arranged on the support frame, a mounting groove is formed in the positioning boss, a support bearing is embedded in the mounting groove, a step-shaped connecting boss is arranged on the fixed disc, a connecting rod is arranged on the connecting boss, and the connecting rod is fixedly sleeved with an inner ring of the support bearing.

In order to avoid installation interference and facilitate installation, preferably, an installation cover is fixedly arranged on the fixed disc, a yielding hole is formed in the position, corresponding to the connection boss, of the installation cover, the connection boss extends into the yielding hole, and the large-diameter end of the connection boss is sleeved on the yielding hole; the installation cover is internally provided with a magneto rotor, the magneto rotor is arranged on the outer side of a magneto stator in a winding mode, and the magneto stator is connected to the supporting frame in a threaded mode.

In order to be more beneficial to discharging cooling air, preferably, the side wall of one side of the mounting cover is provided with first through holes at positions corresponding to the air outlet holes, the side wall of the other side of the mounting cover is provided with second through holes at positions corresponding to the magneto rotor, and the cooling air sequentially passes through the first through holes and the second through holes to reach the impeller.

For convenience of installation, preferably, the connecting boss is provided with a step hole, the small-diameter end of the step hole is in threaded connection with a locking bolt, and the step surface of the nut position of the locking bolt is abutted with the end surface of the corresponding end of the outer wall of the inner ring of the support bearing for limiting; the big footpath end of this step hole is the bell mouth that the outside is big little inside, and this bell mouth cup joints the axis of rotation of being connected with the engine output, and axis of rotation and locking bolt spiro union are fixed.

In order to simplify the installation structure, preferably, a notch is arranged at a position corresponding to the impeller on the motor outer cover, an air guide cover is communicated with a position corresponding to the notch on the outer side wall of the motor outer cover, and an air outlet of the air guide cover faces the silencer.

In order to improve the cooling efficiency, preferably, six air outlet holes are uniformly arranged in the groove along the circumferential direction.

Has the advantages that: the utility model discloses it drives the impeller rotation to set up the engine to make cooling air in proper order for dc-to-ac converter and motor cooling heat dissipation, and in the silencer position exhaust, realize the cooling of the heat dissipation of silencer, under the prerequisite that original wind channel set up, realize the synchronous cooling to two above part positions, compact structure is practical, the simple operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a view from direction B of fig. 2.

Fig. 4 is a left side view of fig. 1.

Fig. 5 is a schematic structural view of the front cover.

Fig. 6 is a schematic structural view of a motor housing.

Fig. 7 is a left side view of fig. 6.

Fig. 8 is a top view of fig. 6.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

By fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8 show, the utility model discloses a frame 1 one side on the frame 1 has set firmly the engine, and the opposite side is equipped with the electricity generation frequency conversion device intercommunication is equipped with silencer 21 on the engine, the electricity generation frequency conversion device includes along the mutual dc-to-ac converter subassembly and the magneto subassembly that communicate the setting of air inlet direction, the dc-to-ac converter subassembly is including setting firmly the front shroud 31 on the frame 1 one side on the inner wall of front shroud 31 is equipped with the recess evenly be equipped with six ventholes 311 along the circumferencial direction in the recess, and the middle part of this recess is equipped with connect the hole 312, and the opposite side on the inner wall of this front shroud 31 has set firmly inverter 3, and the spiro union has rear shroud 32 on this front shroud 31 be equipped with shutter 33 on the rear shroud 32.

The magneto assembly comprises an impeller 41 and a support frame 61, one side of the support frame 61 is fixedly arranged on the front cover 31, the other side of the support frame 61 is fixedly provided with a motor outer cover 42, the support frame 61 is provided with a positioning boss 611, the positioning boss 611 is provided with a mounting groove, a support bearing 62 is embedded in the mounting groove, the fixed disc 63 is provided with a stepped connection boss 64, the connection boss 64 is provided with a connecting rod 65, and the connecting rod 65 is fixedly sleeved with an inner ring of the support bearing 62. A step hole is formed in the connecting boss 64, a small-diameter end of the step hole is in threaded connection with a locking bolt, and a step surface of a nut position of the locking bolt is abutted against and limited by an end surface of a corresponding end of the outer wall of the inner ring of the supporting bearing 62; the big-diameter end of the step hole is a tapered hole with a large outer part and a small inner part, the tapered hole is sleeved with a rotating shaft 22 connected with the output end of the engine, and the rotating shaft 22 is fixed with a locking bolt in a threaded manner.

A fixed disc 63 is rotatably arranged on the supporting bearing 62, an impeller 41 is fixedly arranged on one side of the fixed disc 63, a magneto rotor 72 is arranged on the other side of the fixed disc 63, an installation cover 66 is fixedly arranged on the fixed disc 63, a position corresponding to the connection boss 64 on the installation cover 66 is provided with a yielding hole 67, the connection boss 64 extends into the yielding hole 67, and the large-diameter end of the connection boss 64 is sleeved on the yielding hole 67; a magneto rotor 72 is wound in the mounting cover 66, the magneto rotor 72 is wound outside a magneto stator 71, and the magneto stator 71 is screwed on the support frame 61.

A first through hole 661 is formed at a position corresponding to the air outlet hole 311 on the sidewall of one side of the mounting cover 66, a second through hole 662 is formed at a position corresponding to the magneto rotor 72 on the sidewall of the other side of the mounting cover 66, and the cooling air sequentially passes through the first through hole 661 and the second through hole 662 to reach the impeller 41.

A notch 43 is arranged at a position on the motor housing 42 corresponding to the impeller 41, an air guide cover 5 is communicated with a position on the outer side wall of the motor housing 42 corresponding to the notch 43, and an air outlet of the air guide cover 5 faces the muffler 21.

The utility model discloses a use method as follows:

as shown in fig. 1 and 5, in use, an engine (not shown) is started to drive the impeller 41 to rotate and drive air to flow, the air enters a cavity formed by the rear cover 32 and the front cover 31 through the louver 33, takes away heat generated by the inverter 3 and moves to the air outlet 311 along the periphery of the inverter 3 (the direction of an arrow which is not shown in fig. 1 is the air direction).

As shown in fig. 1 to 4, a magneto rotor 72 is correspondingly disposed at the position of the air outlet hole 311, and air enters the magneto rotor 72 through a first through hole 661 of the air outlet hole 311, then carries away heat in the magneto, and is discharged through a second through hole 662; in order to improve the flowing heat dissipation efficiency, the aperture of the second through holes 662 can be increased without increasing the number of the second through holes 662, and the second through holes 662 and the first through holes 661 can also be symmetrically arranged, at this time, the shortest position of the heat dissipation path of the air flow is a straight line, so that the stay of the heat dissipation air at the position of the magneto rotor is reduced, and the heat dissipation efficiency is improved.

As shown in fig. 1, 4, 6 to 8, the air discharged from the second through hole 662 moves to the impeller 41 position, because the impeller 41 is in a rotating state, and because the motor housing 42 blocks the wind direction, the air forms negative pressure wind power under the action of the fanning of the blades of the impeller 41, the air flows out from the gaps among the blades along the tangential direction of the blades, and is discharged from the position of the notch 43, the discharged air is guided by the guide of the wind scooper 5, the air is discharged from the air outlet of the air guiding cover 5, and the air outlet faces the silencer 21, so that a cooling mode of blowing air to radiate heat to the outer side wall of the silencer 21 is formed, and then, on the premise of keeping the original air duct of the whole machine unchanged, the purposes of cooling the inverter 3, the magneto stator 71, the magneto rotor 72 (the magneto stator and the magneto rotor are positioned in the inner position of the magneto) and the silencer 21 are achieved.

It should be noted that, in the above-mentioned use process, as shown in fig. 1 and fig. 2, the magneto rotor 72 and the impeller 41 rotate synchronously, and since the fixed disk 63 is connected to the inner ring of the support bearing 62 by the connecting rod 65, the rotation of the magneto rotor 72 will not drive the outer ring of the support bearing 62 to rotate synchronously, i.e. will not drive the front cover 31 to move, which is convenient for installation and simultaneously avoids installation interference; in addition, the impeller 41 is arranged at the position of one side of the exhaust air, so that the cooling air can rapidly flow through the middle position of the motor, and the heat dissipation efficiency inside the motor is improved.

Claims

1. A cooling device of a generator set is characterized in that: the engine comprises a base (1), wherein an engine is fixedly arranged on one side of the base (1), a power generation frequency conversion device is arranged on the other side of the base, a silencer (21) is arranged on the engine in a communicating mode, the power generation frequency conversion device comprises an inverter assembly and a magneto assembly which are arranged in a mutually communicating mode along an air inlet direction, the magneto assembly comprises an impeller (41), the impeller (41) is connected with the output end of the engine, an air guide cover (5) is further arranged on the magneto assembly in a communicating mode at the corresponding position, and an air outlet of the air guide cover (5) faces towards the silencer (21).

2. A cooling arrangement for a generator set according to claim 1, characterised in that: the inverter component comprises a front cover (31) fixedly arranged on the base (1), a groove is formed in one side of the inner wall of the front cover (31), at least one air outlet hole (311) is formed in the groove, a connecting through hole (312) is formed in the middle of the groove, an inverter (3) is fixedly arranged on the other side of the inner wall of the front cover (31), a rear cover (32) is connected to the front cover (31) in a threaded mode, and a blind window (33) is formed in the rear cover (32).

3. A cooling arrangement for a generator set according to claim 1, characterised in that: the magneto subassembly still includes support frame (61) one side of support frame (61) sets firmly on front shroud (31), and the opposite side has set firmly motor dustcoat (42), inlays at the middle part of this support frame (61) and is equipped with support bearing (62) it is equipped with fixed disk (63) to rotate on support bearing (62) impeller (41) have set firmly on fixed disk (63).

4. A cooling arrangement for a generator set according to claim 3, characterised in that: be equipped with location boss (611) on support frame (61) be equipped with the mounting groove on location boss (611), be equipped with support bearing (62) at this mounting groove embedded be equipped with step-like connection boss (64) on fixed disk (63) be equipped with connecting rod (65) on connecting boss (64), connecting rod (65) cup joint fixedly with the inner circle of support bearing (62).

5. A cooling arrangement for a generator set according to claim 4, characterised in that: the fixed disc (63) is fixedly provided with an installation cover (66), a position, corresponding to the connecting boss (64), on the installation cover (66) is provided with a yielding hole (67), the connecting boss (64) extends into the yielding hole (67), and the large-diameter end of the connecting boss (64) is sleeved on the yielding hole (67); the mounting cover (66) is internally provided with a magneto rotor (72) in a winding manner, the magneto rotor (72) is arranged on the outer side of a magneto stator (71) in a winding manner, and the magneto stator (71) is screwed on the support frame (61).

6. A cooling arrangement for a generator set according to claim 5, characterised in that: the position that corresponds venthole (311) all is equipped with first through-hole (661) on the lateral wall of installation cover (66) one side, and the position that corresponds magneto rotor (72) is equipped with second through-hole (662) on the lateral wall of this installation cover (66) opposite side, and cooling air passes through first through-hole (661) and second through-hole (662) in proper order and reaches impeller (41) position department.

7. A cooling arrangement for a generator set according to claim 4, characterised in that: a step hole is formed in the connecting boss (64), a locking bolt is screwed at the small-diameter end of the step hole, and the step surface of the nut position of the locking bolt is abutted with the end surface of the corresponding end of the outer wall of the inner ring of the supporting bearing (62) for limiting; the large-diameter end of the step hole is a tapered hole with a large outer diameter and a small inner diameter, the tapered hole is sleeved with a rotating shaft (22) connected with the output end of the engine, and the rotating shaft (22) is fixed with a locking bolt in a threaded mode.

8. A cooling arrangement for a generator set according to claim 3, characterised in that: a notch (43) is formed in the position, corresponding to the impeller (41), of the motor outer cover (42), an air guide cover (5) is communicated with the position, corresponding to the notch (43), of the outer side wall of the motor outer cover (42), and an air outlet of the air guide cover (5) faces the silencer (21).

9. A cooling arrangement for a generator set according to claim 2, characterised in that: six air outlet holes (311) are uniformly arranged in the groove along the circumferential direction.