Diversion type liquid-cooled permanent magnet motor

Abstract

The utility model relates to a diversion type liquid cooling permanent magnet motor, comprising a motor body, the motor body is provided with a neck bush device at the outer side of a stator device, a diversion device is arranged outside the neck bush device, a shell is sleeved outside the diversion device, and a diversion cavity is formed between the shell and the diversion device. The shell is provided with an inflow guide mechanism and an outflow guide mechanism which are communicated with the flow guide cavity, the lower end of the shell is provided with a placement support, the flow guide device comprises an annular flow guide cylinder, a plurality of spacing bars are distributed outside the annular flow guide cylinder, flow guide spaces are formed among the spacing bars, and the spacing bars are distributed in an arc-shaped non-closed mode. Therefore, the flow guide space is formed between the spacing bars, so that the moderate flow guide of the coolant can be met, the coolant can better flow around the annular flow guide cylinder, and the heat interaction efficiency is improved. Partition strips can be additionally arranged to be matched with distribution of the inflow guide mechanism and the outflow guide mechanism, so that distribution of cold area inflow and hot area outflow is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a permanent magnet motor especially relates to a liquid cooling permanent magnet motor of flow guiding type. BACKGROUND

[0002] The liquid cooling permanent magnet motor is a kind of permanent magnet motor using liquid cooling mode.Permanent magnet motor refers to the rotor or stator of motor has permanent magnet, utilizes permanent magnet to generate magnetic field, to realize the conversion between electric energy and mechanical energy.Compared with traditional motor, permanent magnet motor has the advantages of high efficiency, high power density etc.Liquid cooling system mainly through coolant (such as water, ethylene glycol solution etc.) in the cooling channel in the motor inside circulation to take away heat.These cooling channels are usually designed in the vicinity of the stator or rotor of motor, and the cooling medium is cooled under the drive of pump.

[0003] However, the existing coolant channel mainly adopts single cavity design.Using similar external "infiltration" mode to cool the stator device, using the stator device as heat exchange medium to process.In this way, the heat dissipation efficiency is low, and local heat accumulation or coolant impact on the shell is prone to occur, causing resonance and improper use noise.

[0004] In view of the above defects, the designer actively researches and innovates to create a liquid cooling permanent magnet motor of flow guiding type, so that it has more industrial use value. INVENTION CONTENTS

[0005] To solve the above technical problems, the purpose of the utility model is to provide a liquid cooling permanent magnet motor of flow guiding type.

[0006] The liquid cooling permanent magnet motor of flow guiding type of the utility model comprises a motor body, wherein: the inner bushing device is installed on the outer side of the stator device of the motor body, the flow guiding device is installed outside the inner bushing device, the outer shell is arranged outside the flow guiding device, the flow guiding cavity is formed between the outer shell and the flow guiding device, the inflow guide mechanism and the outflow guide mechanism are arranged on the outer shell and communicated with the flow guiding cavity, the placing bracket is installed at the lower end of the outer shell, the flow guiding device comprises a ring-shaped flow guiding cylinder, a plurality of interval strips are arranged on the outer part of the ring-shaped flow guiding cylinder, the flow guiding space is formed between the interval strips, and the interval strips are distributed in arc shape and are not closed.

[0007] Further, the liquid cooling permanent magnet motor of flow guiding type, wherein, the interval strips are further provided with partition strips distributed in half-enclosed ring shape, the partition strips are provided with drainage openings, the drainage openings are semicircular openings, and the semicircular openings are distributed downward;The partition strips divide the flow guiding cavity into inflow area and outflow area communicated with each other, the inflow guide mechanism is communicated and connected with the inflow area, and the outflow guide mechanism is communicated and connected with the outflow area.

[0008] Further, the above-mentioned flow-guiding liquid-cooled permanent magnet motor, wherein the height of the spacing strip is 0.3 to 1.2 cm.

[0009] Further, the above-mentioned flow-guiding liquid-cooled permanent magnet motor, wherein the width of the flow-guiding space is 0.7 to 1.5 cm.

[0010] Further, the above-mentioned flow-guiding liquid-cooled permanent magnet motor, wherein the cross section of the spacing strip is rectangular, trapezoidal or triangular.

[0011] Further, the above-mentioned flow-guiding liquid-cooled permanent magnet motor, wherein the spacing strip is provided with a plurality of shunt holes at intervals.

[0012] Further, the above-mentioned flow-guiding liquid-cooled permanent magnet motor, wherein the upper edge of the spacing strip is provided with a plurality of shunt grooves at intervals.

[0013] Further, the above-mentioned flow-guiding liquid-cooled permanent magnet motor, wherein the front and rear ends of the annular flow-guiding cylinder are provided with bonding edges, and the inner side of the bonding edge is provided with a sealing ring.

[0014] Further, the above-mentioned flow-guiding liquid-cooled permanent magnet motor, wherein the inflow guiding mechanism and the outflow guiding mechanism each comprise a butt joint pipe in conductive connection with the shell, the butt joint pipe is provided with a reinforcing ring outside, and the inner wall of the butt joint pipe is provided with a threaded mechanism.

[0015] Further, the above-mentioned flow-guiding liquid-cooled permanent magnet motor, wherein the front end of the inner sleeve device extends a bonding edge, and the bonding edge is provided with a plurality of bonding holes, which are threaded holes.

[0016] By the above-mentioned scheme, the utility model at least has the following advantages:

[0017] 1. The flow-guiding space formed between the spacing strips can meet the moderate flow guidance of the coolant, so that the coolant flows better around the annular flow-guiding cylinder, and the heat exchange efficiency is improved.

[0018] 2. The partition strip can be additionally provided, which cooperates with the distribution of the inflow guiding mechanism and the outflow guiding mechanism to realize the distribution of cold zone inflow and hot zone outflow, better cover when the coolant flows at high speed, and avoid improper flow disturbance at the end of the outflow guiding mechanism.

[0019] 3. The spacing strip is provided with shunt holes or shunt grooves, which realize moderate shunt intercommunication under the condition of large flow, and do not cause resonance and noise due to excessive impact of the coolant on the shell.

[0020] 4. The sealing ring is additionally arranged, and after installation, liquid tightness is good.

[0021] 5. The whole structure is simple, and the existing liquid-cooled permanent magnet motor can be transformed, and the implementation cost is low.

[0022] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail with the help of the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is the whole structure schematic diagram of the liquid-cooled permanent magnet motor of the flow guide type.

[0024] Fig. 2 It is the structure schematic diagram of the flow guide device.

[0025] Fig. 3 It is the distribution schematic diagram of the shunt hole.

[0026] Fig. 4 It is the distribution schematic diagram of the shunt groove.

[0027] The meanings of various reference signs in the drawings are as follows.

[0028] 1. Motor body 2. Shell

[0029] 3. Placing support 4. Annular flow guide cylinder

[0030] 5. Interval strip 6. Partition strip

[0031] 7. Inflow area 8. Outflow area

[0032] 9. Shunt hole 10. Shunt groove

[0033] 11. Combined edge 12. Inflow guide mechanism

[0034] 13. Outflow guide mechanism 14. Reinforcing ring

[0035] 15. Combined edge 16. Combined hole DETAILED DESCRIPTION

[0036] The specific implementation of the utility model will be further described in detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0037] As Figs. 1 to 4The utility model provides a kind of flowable liquid-cooled permanent magnet motor, including motor body 1, it is different from the prior art in that: motor body 1 is located on the outside of stator device and is equipped with inner bushing device, for realizing effective protection isolation.Meanwhile, inner bushing device is equipped with flow guide device outside, for realizing the proper flow guiding of coolant.And, flow guide device is equipped with shell 2 outside, to facilitate closed.Shell 2, flow guide device between constitute flow guide cavity, for realizing the accommodation of coolant.Considering the circulation flow guiding needs of coolant, shell 2 is provided with inflow guide mechanism 12 and outflow guide mechanism 13 with flow guide cavity conduction.Furthermore, in order to facilitate the utility model to be placed on the equipment base of butt joint, placing bracket 3 can be installed on the lower end of shell 2, to facilitate subsequent installation butt joint by locking screw.Implementation period, flow guide device includes annular flow guide cylinder 4, and the outer part of annular flow guide cylinder 4 is distributed with several interval strips 5, and interval strip 5 constitutes flow guide space between each other.In this way, relying on flow guide space, the proper flow, coverage area control of coolant can be realized.Of course, considering the flow needs of coolant, interval strip 5 is circular arc non-closed distribution.In this way, the coolant in flow guide space can realize flow intercommunication between each other, under the action of external circulating pump, realize the flow of " coverage circulation " similar, improve heat exchange efficiency.

[0038] In combination with a preferred embodiment of the utility model, interval strip 5 is also equipped with partition strip 6 that is half-encircling annular distribution, and the partition strip 6 is provided with drainage opening (not shown in the figure), and the drainage opening is semicircular opening, and the semicircular opening is distributed downward.In this way, the flow guide cavity can be divided into inflow area 7 and outflow area 8 by the partition strip 6.Meanwhile, relying on the existence of drainage opening, the intercommunication flow of coolant in the two areas is not affected.In order to facilitate better drainage distribution, inflow guide mechanism 12 is connected with inflow area 7, and outflow guide mechanism 13 is connected with outflow area 8.

[0039] Further, the height of interval strip 5 is 0.3 to 1.2 cm, which can be preferably 0.6 cm.In this way, the wall thickness of the entire permanent magnet motor will not be increased too much.Meanwhile, the width of flow guide space is 0.7 to 1.5 cm, preferably 1 cm.And, in order to meet the moderate fluidity of different coolant, the cross section of interval strip 5 is rectangular, trapezoidal or triangular.In this way, when moderate flow guiding is carried out, local accumulation of coolant can be avoided.Furthermore, a plurality of shunt holes 9 can be distributed on the interval strip 5, and the shunt holes 9 are elliptical holes.Thus, when high-flow guiding is carried out, the shunt holes 9 can be used for moderate shunting to avoid liquid flow resonance.Furthermore, a plurality of shunt grooves 10 can be distributed on the upper edge of interval strip 5 for moderate shunting under ordinary flow rate guiding.

[0040] In combination with actual implementation, the front and rear ends of the annular flow guide cylinder 4 are provided with the combination flanges 11, and the inner sides of the combination flanges 11 are provided with the sealing rings. In this way, the overall liquid tightness can be improved, and leakage of the coolant can be avoided. In addition, in order to effectively connect with the external flow guide pipeline, the inflow guide mechanism 12 and the outflow guide mechanism 13 each include a butt joint pipe connected with the shell 2, the butt joint pipe is provided with the reinforcing ring 14 outside, and the inner wall of the butt joint pipe is provided with the threaded mechanism. In this way, the threaded mechanism can be used to stably butt joint with the external flow guide pipeline.

[0041] Furthermore, in order to effectively and integrally connect with the auxiliary driving device, the combination flanges 15 are extended at the front end of the inner sleeve device, the combination flanges 15 are provided with a plurality of combination holes 16, and the combination holes 16 are threaded holes. In this way, the inner sleeve device of the utility model can be connected with the auxiliary driving device through the threaded holes and the combination flanges 15.

[0042] The working principle of the utility model is as follows:

[0043] When the motor body 1 operates, the coolant flowing into the inflow guide mechanism 12 enters the flow guide cavity, and finally is guided by the outflow guide mechanism 13 and then flows into the corresponding circulating heat dissipation device, so that the circulating heat dissipation is completed.

[0044] During this period, the coolant flows outside the annular flow guide cylinder 4 through the guidance of the flow guide space, so that heat exchange is realized. At the same time, through the cooperation of the partition strips 6 and the drainage openings, the coolant in the inflow area 7 and the outflow area 8 can be guided and interacted, so that turbulence is avoided, and smooth circulation of the coolant is realized. In addition, because the semicircular openings are distributed downward, the coolant can be gathered at the bottom through gravity guidance, so that heat exchange is realized, and the overall liquid cooling efficiency is improved. Because the lower end of the motor body 1 is prone to heat accumulation, such distribution can effectively realize heat exchange for heat accumulation. Then, under the action of the external circulating pump, the heat dissipation circulation of the coolant is completed.

[0045] During use, the flow guide space formed between the interval strips 5 can optimize the layout in the flow guide cavity, so that the flow distribution and speed of the coolant can be optimized while meeting the flow demand of the coolant, the flow guide is optimized, and better liquid cooling effect is achieved.

[0046] As can be seen from the above description and in combination with the drawings, after the utility model is adopted, the following advantages are achieved:

[0047] 1. The flow guide space formed between the interval strips can meet the moderate flow guidance of the coolant, so that the coolant can better flow around the annular flow guide cylinder, and the heat exchange efficiency is improved.

[0048] 2、Can add partition strip, cooperate into flow guide mechanism and the distribution of outflow guide mechanism, realize such as cold area inflow, hot area outflow distribution, when the coolant carries out high speed flow, better carry out coverage, and avoid the appearance of improper disturbance flow of outflow guide mechanism end accessory.

[0049] 3、The interval strip is distributed with shunt hole or shunt groove, in the case of large flow operation, realize moderate shunt intercommunication, will not cause coolant excessive impact shell and appear resonance, noise.

[0050] 4、Add sealing ring, after installation, have better liquid tightness effect.

[0051] 5、The whole structure is simple, can carry out the reform to the existing liquid-cooled permanent magnet motor, and the implementation cost is low.

[0052] In addition, the indication direction or position relationship described in the utility model is based on the direction or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not to indicate or imply that the device or structure must have a specific direction, or be operated in a specific direction, so it cannot be understood as a limitation of the utility model.

[0053] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, it should be pointed out that, for ordinary skilled person in the art, on the premise of not departing from the technical principle of the utility model, can make several improvements and variations, these improvements and variations also should be regarded as the protection scope of the utility model.

Claims

1. A flow-guided liquid-cooled permanent magnet motor comprising a motor body (1), characterized in that: The motor body (1) is located outside the stator device and is provided with an inner bushing device, the outer side of the inner bushing device is provided with a flow guide device, the outer side of the flow guide device is provided with an outer shell (2), a flow guide cavity is formed between the outer shell (2) and the flow guide device, the outer shell (2) is provided with an inflow guide mechanism (12) and an outflow guide mechanism (13) which are in communication with the flow guide cavity, the lower end of the outer shell (2) is provided with a placing bracket (3), the flow guide device comprises a ring-shaped flow guide cylinder (4), the outer side of the ring-shaped flow guide cylinder (4) is provided with a plurality of interval strips (5), the interval strips (5) form flow guide spaces therebetween, and the interval strips (5) are distributed in a circular arc shape and are not closed.

2. The flow-guidable liquid-cooled permanent magnet electric machine of claim 1, wherein: The interval strips (5) are further provided with partition strips (6) which are distributed in a semi-enclosed ring shape, the partition strips (6) are provided with drainage openings, the drainage openings are semicircular openings which are distributed downward, the partition strips (6) divide the flow guide cavity into an inflow area (7) and an outflow area (8) which are in communication with each other, the inflow guide mechanism (12) is in communication with and is connected to the inflow area (7), and the outflow guide mechanism (13) is in communication with and is connected to the outflow area (8).

3. The flow-guidable liquid-cooled permanent magnet electric machine of claim 1, wherein: The height of the interval strips (5) is 0.3-1.2 cm.

4. The flow-guidable liquid-cooled permanent magnet electric machine of claim 1, wherein: The width of the flow guide space is 0.7-1.5 cm.

5. The flow-guidable liquid-cooled permanent magnet electric machine of claim 1, wherein: The cross section of the interval strips (5) is rectangular, trapezoidal or triangular.

6. The flow-guidable liquid-cooled permanent magnet electric machine of claim 1, wherein: The interval strips (5) are provided with a plurality of shunt holes (9) which are distributed at intervals, and the shunt holes (9) are elliptical holes.

7. The flow-guidable liquid-cooled permanent magnet electric machine of claim 1, wherein: The upper edges of the interval strips (5) are provided with a plurality of shunt grooves (10) which are distributed at intervals.

8. The flow-guidable liquid-cooled permanent magnet electric machine of claim 1, wherein: The front and rear ends of the ring-shaped flow guide cylinder (4) are provided with combination edges (11), and the inner side of the combination edges (11) is provided with a sealing ring.

9. The flow-guidable liquid-cooled permanent magnet electric machine of claim 1, wherein: The inflow guide mechanism (12) and the outflow guide mechanism (13) each comprise a butt joint pipe which is in communication with the outer shell (2), the butt joint pipe is provided on the outer side thereof with a reinforcing ring (14), and the inner wall of the butt joint pipe is provided with a threaded mechanism.

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