CN219499109U

CN219499109U - Motor casing with quick heat conduction function

Info

Publication number: CN219499109U
Application number: CN202320260954.0U
Authority: CN
Inventors: 陈林
Original assignee: Xiamen Tungsten Co Ltd
Current assignee: Xiamen Tungsten Co Ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-08-08
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses a motor casing with a rapid heat conduction function, which comprises: a rotor chamber and a plurality of groups of heat transfer runners are formed in the hollow shell, and each heat transfer runner is uniformly distributed at intervals in a surrounding manner by taking the center of the hollow shell as the center of the circle, is arranged along the axial direction of the hollow shell and penetrates through two end surfaces of the hollow shell; each heat transfer runner comprises a plurality of channels, and the channels of the same group are coaxially and parallelly arranged; the first flange and the second flange are detachably sealed and arranged on two end surfaces of the hollow shell, and are respectively provided with a plurality of diversion trenches used for being connected with the heat transfer flow channel in series; the diversion trenches which are oppositely arranged on the first flange and the second flange are arranged in a staggered way in the circumferential direction, and each diversion trench is only communicated with two adjacent heat transfer channels in the circumferential direction; the diversion trench corresponds to the area between two adjacent heat transfer channels to form a fluid mixing transition section; the utility model provides a motor casing solves the casing cooling effect not enough, and with high costs, the shaping degree of difficulty is big, sealed welding process complex problem.

Description

Motor casing with quick heat conduction function

Technical Field

The utility model relates to the field of motor production, in particular to a motor shell with a rapid heat conduction function.

Background

Conventionally, the problem of heat dissipation of a motor has been plagued by those skilled in the art, and in order to improve the heat dissipation effect, many heat dissipation structures have been developed, for example, a cooling flow channel is formed in a casing, and the ways of the flow channel are various; or the material of the motor shell is changed to improve the cooling effect and the like, but the motor shell can also meet a part of cooling requirements, and meanwhile, some new problems are brought; for example: the existing axial type shell is mostly made of steel, aluminum alloy or cast iron; most of steel or aluminum axial type machine shells are required to be combined with a sealing welding mode to construct a water channel, materials to be removed during machining are more, the requirements on welding process and welding seam strength of the machine shells are extremely high, the working procedure is complex, the welding cost is high, the strength is insufficient, and the aluminum alloy machine shell is not suitable for the requirements on structural strength and hardness of a medium-large motor; the hardness and the structural reliability of the cast iron type casing are higher than those of aluminum alloy, but the welding performance is poor, the heat dissipation performance is inferior to that of aluminum alloy, and in order to reduce the production procedures of a welding process, realize the cast iron casing with low cost and good heat dissipation effect, most of the existing cast iron casings are cast integrally; but the flow channels are difficult to form and have small heat exchange area, so that the requirements of multiple flow channels and turns are difficult to meet, and even the condition that a cooling medium leaks from the shell often occurs;

therefore, the existing casing is difficult to meet the advantages of each material, and the cooling effect needs to be further optimized.

Disclosure of Invention

The utility model aims to overcome the defects or problems in the background art and provide the motor shell with the rapid heat conduction function, which has the advantages of simple structure, simple and convenient manufacture, easy realization and low cost, and solves the problems of insufficient cooling effect of the shell, high cost, large molding difficulty and complex sealing and welding process.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a motor casing having a rapid heat transfer function, the motor casing comprising:

the hollow shell is internally provided with a rotor chamber and a plurality of groups of heat transfer runners, wherein each heat transfer runner is circumferentially and uniformly distributed at intervals by taking the center of the hollow shell as the center of a circle, is axially arranged along the hollow shell and penetrates through two end surfaces of the hollow shell; each heat transfer runner comprises a plurality of channels, and the channels of the same group are coaxially and parallelly arranged;

the first flange and the second flange are detachably sealed and arranged on two end surfaces of the hollow shell, and are respectively provided with a plurality of diversion trenches used for being connected with the heat transfer flow channel in series; the diversion trenches which are oppositely arranged on the first flange and the second flange are arranged in a staggered way in the circumferential direction, and each diversion trench is only communicated with two adjacent heat transfer channels in the circumferential direction; the diversion trench corresponds to the area between two adjacent heat transfer channels to form a fluid mixing transition section; the first flange is also provided with a liquid inlet channel in a crossing way, and a cooling component is arranged on the liquid inlet channel.

Further, the moving hot runner includes a plurality of channels, wherein a channel adjacent to the rotor chamber is configured as a heat absorbing channel, and another channel is configured as a cooling channel; the two channels are respectively communicated with the diversion trench, and the fluid of the two channels is mixed through the diversion trench.

Further, each diversion trench is circumferentially arranged on the first flange and the second flange at intervals by taking the center of the hollow shell as the center of the circle.

Further, the fluid mixing transition extends radially outwardly of the hollow housing to form a curved fluid mixing transition.

Further, one surface of the first flange, which is away from the hollow shell, is provided with an opening groove which is arranged on a liquid inlet path of the liquid inlet flow channel, is used for packaging the cooling component, and enables the fluid to flow through the heat transfer flow channel after being cooled by the cooling component.

Further, the first flange and the second flange extend to form an embedding convex ring respectively opposite to one surface of the hollow shell, and the embedding convex ring is used for guiding the hollow shell to be coaxially packaged with the first flange and the second flange respectively.

Further, sealing elements are arranged between the first flange and the second flange and between the two end faces of the hollow shell.

Further, the cross section of the diversion trench on the second flange is formed to be arc-shaped.

Further, the first flange and the second flange are respectively screwed and locked through threads, and the sealing covers are arranged on two end surfaces of the hollow shell.

From the above description of the present utility model, compared with the prior art, the present utility model has the following advantages:

(1) The utility model provides a motor shell with a rapid heat conduction function, which has the advantages of simple structure, simplicity and convenience in manufacturing, easiness in realization and low cost, and solves the problems of insufficient cooling effect of a shell, high cost, high molding difficulty and complex sealing and welding process; the heat is taken away by the rapid running of the fluid through the plurality of channels of the heat transfer runner to improve the cooling effect, the channel, which is close to the rotor chamber, in the double channels can absorb heat rapidly, the cooling fluid of the other channel which is coaxial and parallel to the channel is mixed rapidly, the fluid with certain heat and the cooling fluid are fully converged in the diversion trench, the fluid enters the next heat transfer runner after being fully converged by the fluid mixing transition section, and flows out from the outlet after encircling the loop, so that compared with the current multi-loop encircling design of the runner, the heat generated by the channel can be removed more rapidly, and the heat of the hollow shell can be cooled rapidly; furthermore, this novel setting is spanned and is the inlet channel on first flange, and set up cooling module on the inlet path of inlet channel, so set up not only the cooling of cavity casing, first flange also has the cooling effect, cooling module sets up in first flange moreover, save external mounting, place cooling module's space, shorten the fluid after cooling module cools off on the flow path cooling effect by the impairment, when playing trilateral cooling and remove heat, the equipment of motor casing of being more convenient for, do not need high accuracy, the welding of complicated technology, satisfy the strong cooling and remove heat promptly, can have enough intensity, rigidity again, still avoid the big problem of the welding degree of difficulty simultaneously;

(2) The diversion trenches are circumferentially arranged at intervals by taking the center of the hollow shell as the center of the circle, and have the advantages of compact space design and close matching with the heat transfer channel, so that the probability of liquid leakage is reduced;

(3) The novel fluid mixing section extends outwards along the radial direction of the hollow shell to form the curved fluid mixing transition section, the design can enable fluid in the heat absorption channel and fluid in the cooling flow channel to be fully mixed and cooled, the fluid can be rapidly cooled when entering the next heat transfer flow channel, meanwhile, the heat absorption effect of the heat absorption channel is better by changing the stroke of the extension transition section, and the fluid can be rapidly taken away after being cooled through one transition section;

(4) An open slot is formed in the first flange, so that the cooling assembly is convenient to install, debug, replace, maintain and the like;

(5) The novel first flange and the second flange are provided with the scarf joint convex rings, the design not only plays a role in guiding alignment assembly, but also is not easy to displace after subsequent sealing and assembling, and the risk that leakage enters the rotor chamber is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the description of the embodiments below are briefly introduced, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a motor casing according to the present utility model;

FIG. 2 is a schematic diagram illustrating the operation of a fluid in combination with a flow channel according to the present utility model;

FIG. 3 is a schematic perspective view of a first flange according to the present utility model;

FIG. 4 is a schematic perspective view of a second flange according to the present utility model;

FIG. 5 is a schematic perspective view of a second flange according to the present utility model;

fig. 6 is a schematic perspective view of the hollow shell according to the present utility model.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is to be understood that the described embodiments are preferred embodiments of the utility model and should not be taken as excluding other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without creative efforts, are within the protection scope of the present utility model.

In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc., are used for distinguishing between different objects and not for describing a particular sequential order.

In the claims, specification and drawings hereof, unless explicitly defined otherwise, references to orientation terms such as "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counter-clockwise", etc., are based on the orientation and positional relationship shown in the drawings and are for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of protection of the utility model.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, the term "fixedly connected" or "fixedly connected" should be construed broadly, i.e. any connection between them without a displacement relationship or a relative rotation relationship, that is to say includes non-detachably fixedly connected, integrally connected and fixedly connected by other means or elements.

In the claims, specification and drawings of the present utility model, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.

Referring to fig. 1-6, a motor casing with quick heat transfer function according to the present utility model, the motor casing includes:

a hollow housing 1 in which a rotor chamber 13 and a plurality of sets of hot runners 2 are formed;

the heat transfer flow channels 2 are uniformly distributed at intervals around the center of the hollow shell 1, are arranged along the axial direction of the hollow shell 1 and penetrate through two end surfaces 11 and 12 of the hollow shell 1;

each heat transfer flow channel 2 comprises a plurality of channels 21 and 22, and the two channels 21 and 22 of the same group are coaxially arranged in parallel and outwards at intervals in a diffusing manner, the heat transfer flow channel 2 comprises a plurality of channels 21 and 22, wherein the channel 21 close to the rotor chamber 13 is configured as a heat absorption channel 21; the other channel 22 is configured as a cooling channel 22, both channels 21, 22 are respectively communicated with the diversion trenches 30, 40, and the fluid of both channels 21, 22 is mixed through the diversion trenches 30, 40;

the first flange 3 and the second flange 4 are detachably sealed and arranged on the two end surfaces 11 and 12 of the hollow shell 1, and are respectively provided with a plurality of diversion trenches 30 and 40 used for being connected with the heat transfer flow channel 2 in series (the cross sections of the diversion trenches 30 and 40 on the second flange 4 are arc-shaped); in the novel structure, the diversion trenches 30 and 40 are circumferentially arranged on the first flange 3 and the second flange 4 at intervals by taking the center of the hollow shell 1 as the center of the circle;

the diversion trenches 30 and 40 which are oppositely arranged on the first flange 3 and the second flange 4 are arranged in a staggered way along the circumferential direction, and each diversion trench 30 and 40 is only communicated with the adjacent two heat transfer channels 21 and 22;

the diversion trenches 30, 40 form fluid mixing transition sections 31, 41 for the areas between the two adjacent heat transfer channels 21, 22; the first flange 3 is further provided with a fluid inlet channel 32 in a crossing manner, and a cooling component 5 is arranged on the fluid inlet channel 32 (it is to be noted that the novel IGBT module is used as the cooling component 5, which is the prior art, and only needs to be assembled in the fluid inlet channel 32 to reduce the temperature of the fluid after passing through the cooling component 5 so as to achieve a better cooling effect); in the present utility model, one surface of the first flange 3 facing away from the hollow housing 1 has an open slot 33, which is opened on the liquid inlet path of the liquid inlet channel 32, and is used for packaging the cooling component 5, and the fluid flows through the heat transfer channel 2 after being cooled by the cooling component 5;

the first flange 3 and the second flange 4 are respectively screwed and locked by screws, and sealing covers are arranged on two end surfaces 11 and 12 of the hollow shell 1.

More specifically, the fluid mixing transition sections 31, 41 extend radially outwardly of the hollow housing 1 to form a curved fluid mixing transition section 31, 41.

More specifically, the first flange 3 and the second flange 4 extend to form engagement convex rings 34 and 44, respectively, on one surface of the hollow housing 1, and the engagement convex rings 34 and 44 are used for guiding the hollow housing 1 to be coaxially arranged with the first flange 3 and the second flange 4.

More specifically, a sealing member 6 is provided between the first flange 3 and the second flange 4 and the two end surfaces 11 and 12 of the hollow housing 1, respectively.

1-6, the motor casing with the rapid heat transfer function mainly comprises the following components: a hollow housing 1, a rotor chamber 13, a hot runner 2, a first flange 3, a second flange 4, a cooling assembly 5 and a seal 6;

in the actual assembly and use process, the water tank is provided with a water tank,

(1) Preparing a hollow shell 1, wherein the hollow shell 1 is prepared and molded by cast iron and aluminum alloy, is in a tubular shape and is provided with a hollow rotor chamber 13 and a heat transfer flow passage 2 which axially penetrates and is outwards diffused by taking the center of a circle as a center, wherein the heat transfer flow passage 2 consists of a plurality of passages 21 and 22, namely, each heat transfer flow passage 2 consists of 2 passages 21 and 22, wherein a passage 21 close to the rotor chamber 13 is defined as a heat absorption passage 21, and the other passage 22 is a cooling passage 22;

(2) Forming a first flange 3, wherein a diversion trench 30, an open slot 33, a liquid inlet runner 32 and an embedded convex ring 34 are formed on the first flange; the diversion trenches 30 are used for conducting two heat transfer runners 2 adjacent in the circumferential direction; an open slot 33 is formed on one surface of the first flange 3, which is away from the hollow shell 1, for installing the cooling component 5 (i.e. the IGBT cooling module), and the liquid inlet flow channel 32 is drilled from the side wall of the first flange 3 in a perforation mode, passes through the open slot 33 and then passes through and is communicated with the diversion trench 30; the embedded convex ring 34 is guided and butted when being butted with the hollow shell 1 after being molded;

in addition, it should be noted that, the diversion trenches 30, 40 are formed with curved fluid mixing transition sections 31, 41, so as to delay the mixing time and ensure the sufficient mixing and cooling;

(3) The second flange 4 is molded in the same molding mode as the first flange 3, and is different in that the opening position of the diversion trench 40 is staggered relative to the opening position of the diversion trench 30 on the first flange 3;

(4) Assembling, namely, the first flange 3 corresponds to the hollow shell 1, and two sealing elements 6 are respectively sleeved on the embedding convex ring 34 and the end face of the first flange 3, so that the sealing elements 6 positioned at the embedding convex ring 34 are used for preventing fluid from entering the rotor chamber 13, and the other sealing element 6 is used for preventing cooling fluid from seeping out of the hollow shell 1; then, the second flange 4 is arranged at the other end of the hollow shell 1 in the same way, and a shell with a double S-shaped heat transfer flow channel 2 on a peripheral wall is formed after the sealing screw lock; finally, the IGBT cooling module is arranged in the open slot 33, and is assembled after being abutted against the upper liquid inlet channel 32;

when the cooling fluid enters the IGBT cooling module from the liquid inlet flow channel 32 for cold liquid treatment, and enters the heat transfer flow channel 2 at the same time, namely, enters the two channels 21 and 22 at the same time, after the heat absorption channel 21 close to the rotor chamber 13 absorbs heat rapidly, the temperature of the cooling channel 22 is lower than that of the heat absorption channel 21, and the cooling fluid flows through the diversion trench 40 from the first flange 3 to the second flange 4 at the other end of the hollow shell 1 to mix, and the fluid with high temperature in the heat absorption channel 21 and the fluid with low temperature in the cooling channel 22 are mixed through the prolonged mixing travel of the fluid mixing transition section 41, and then enter the next heat transfer flow channel 2 of the hollow shell 1 again in a revolving way, and flow continuously in the diversion trench 30 of the first flange 3 in the same way, and flows out from the liquid outlet 34 formed on the first flange 3 after encircling a circle, so that the cooling circulation is formed.

The utility model provides a motor shell with a rapid heat conduction function, which has the advantages of simple structure, simplicity and convenience in manufacturing, easiness in realization and low cost, and solves the problems of insufficient cooling effect of a shell, high cost, high molding difficulty and complex sealing and welding process; the heat is taken away by the rapid running of the fluid through the plurality of channels of the heat transfer runner to improve the cooling effect, the channel, which is close to the rotor chamber, in the double channels can absorb heat rapidly, the cooling fluid of the other channel which is coaxial and parallel to the channel is mixed rapidly, the fluid with certain heat and the cooling fluid are fully converged in the diversion trench, the fluid enters the next heat transfer runner after being fully converged by the fluid mixing transition section, and flows out from the outlet after encircling the loop, so that compared with the current multi-loop encircling design of the runner, the heat generated by the channel can be removed more rapidly, and the heat of the hollow shell can be cooled rapidly; furthermore, this novel setting is spanned and is the inlet channel on first flange, and set up cooling module on the inlet path of inlet channel, so set up not only the cooling of cavity casing, first flange also has the cooling effect, cooling module sets up in first flange moreover, save external mounting, place cooling module's space, shorten the fluid after cooling module cools off on the flow path cooling effect by the impairment, when playing trilateral cooling and remove heat, the equipment of motor casing of being more convenient for, do not need high accuracy, the welding of complicated technology, satisfy the strong cooling and remove heat promptly, can have enough intensity, rigidity again, still avoid the big problem of the welding degree of difficulty simultaneously; the diversion trenches are circumferentially arranged at intervals by taking the center of the hollow shell as the center of the circle, and have the advantages of compact space design and close matching with the heat transfer channel, so that the probability of liquid leakage is reduced; the novel fluid mixing section extends outwards along the radial direction of the hollow shell to form the curved fluid mixing transition section, the design can enable fluid in the heat absorption channel and fluid in the cooling flow channel to be fully mixed and cooled, the fluid can be rapidly cooled when entering the next heat transfer flow channel, meanwhile, the heat absorption effect of the heat absorption channel is better by changing the stroke of the extension transition section, and the fluid can be rapidly taken away after being cooled through one transition section; an open slot is formed in the first flange, so that the cooling assembly is convenient to install, debug, replace, maintain and the like; the novel first flange and the second flange are provided with the scarf joint convex rings, the design not only plays a role in guiding alignment assembly, but also is not easy to displace after subsequent sealing and assembling, and the risk that leakage enters the rotor chamber is reduced.

The foregoing description of the embodiments and description is presented to illustrate the scope of the utility model, but is not to be construed as limiting the scope of the utility model.

Claims

1. Motor casing with quick heat conduction function, its characterized in that: this motor casing includes:

the first flange and the second flange are detachably sealed and arranged on two end surfaces of the hollow shell, and are respectively provided with a plurality of diversion trenches used for being connected with the heat transfer flow channel in series; the diversion trenches which are oppositely arranged on the first flange and the second flange are arranged in a staggered way along the circumferential direction, and each diversion trench is only communicated with two adjacent heat transfer channels along the circumferential direction; the diversion trench forms a fluid mixing transition section for the area between the two adjacent heat transfer channels;

the first flange is also provided with a liquid inlet channel in a crossing way, and a cooling component is arranged on the liquid inlet channel.

2. A motor housing having a rapid thermal conductivity as defined in claim 1, wherein: the moving hot runner includes a plurality of channels, wherein a channel adjacent to the rotor chamber is configured as a heat absorbing channel, and another channel is configured as a cooling channel; the two channels are respectively communicated with the diversion trench, and the fluid of the two channels is mixed through the diversion trench.

3. A motor housing having a rapid thermal conductivity as defined in claim 2, wherein: the diversion trenches are circumferentially arranged on the first flange and the second flange at intervals by taking the center of the hollow shell as the center of the circle.

4. A motor casing having a rapid thermal conductivity as claimed in claim 1, 2 or 3, wherein: the fluid mixing transition extends radially outwardly of the hollow housing to form a curved fluid mixing transition.

5. The motor casing with rapid thermal conductivity according to claim 4, wherein: one surface of the first flange, which is away from the hollow shell, is provided with an open slot which is arranged on a liquid inlet path of the liquid inlet flow channel, is used for packaging the cooling component and enables fluid to flow through the heat transfer flow channel after being cooled by the cooling component.

6. The motor casing with rapid thermal conductivity according to claim 5, wherein: the first flange and the second flange extend to form scarfing convex rings respectively opposite to one surface of the hollow shell, and the scarfing convex rings are used for guiding the hollow shell to be coaxially packaged with the first flange and the second flange respectively.

7. The motor housing with rapid thermal conductivity of claim 6, wherein: sealing elements are arranged between the first flange and the second flange and between the two end faces of the hollow shell respectively.

8. A motor housing having a rapid thermal conductivity as defined in claim 1, wherein: the cross section of the diversion trench on the second flange is formed to be arc-shaped.

9. A motor housing having a rapid thermal conductivity as defined in claim 1, wherein: the first flange and the second flange are respectively screwed and locked through threads, and the sealing covers are arranged on two end surfaces of the hollow shell.