Novel oil-cooled motor casing

Abstract

The utility model discloses a novel oil-cooled motor casing, which relates to the technical field of motor casings, and comprises a casing outer shell and a casing inner shell which are connected with each other, and the interiors of the casing outer shell and the casing inner shell are communicated to form a flow channel structure. In order to solve the problems of large flow resistance of a baffling type flow channel and long inlet and outlet paths of a common spiral flow channel in the prior art, multiple flow channels in a flow channel structure are formed in parallel, an original single flow channel is changed into multiple parallel flow channels, the length of the inlet and outlet paths of the flow channels is reduced, the overall cooling area of fluid is increased, and meanwhile, the overall flow resistance is smaller than the flow resistance of the single flow channel; through the spiral arrangement of the flow channel structure, the flow channel structure is attached to the spiral conveying direction of oil liquid in the conveying process, the advantage that the number of fluid turning positions of a common spiral flow channel is small is reserved, the defect that an original inlet and outlet path of the spiral flow channel is long is overcome, and the cooling area of the fluid is further increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor casing technical field, concretely is a novel oil cooling motor casing. BACKGROUND

[0002] The flow channel of the oil cooling motor casing is smooth when fluid runs, and the inlet and outlet of the flow channel need to be connected, and the casing of the motor is usually cylindrical, so that the flow channel is smooth, and the flow channel is arranged along the surface of the casing.

[0003] The existing oil cooling motor casing structure is mainly a baffle type flow channel or a common spiral flow channel, the fluid cooling area of the baffle type flow channel is large, but there are many turns, which leads to large fluid flow resistance, which may reduce the flow of the cooling liquid or increase the temperature, reduce the heat dissipation efficiency of the motor, and further affect the normal work and service life of the equipment, and the fluid of the common spiral flow channel has fewer turns, so the fluid flow resistance is smaller than that of the baffle type flow channel, but the inlet and outlet path is longer, and the fluid cooling area is reduced, which affects the heat dissipation efficiency of the motor.

[0004] In view of the above problems, a novel oil cooling motor casing is provided. UTILITY MODEL CONTENTS

[0005] The utility model discloses a novel oil cooling motor casing, which solves the problem that the existing oil cooling motor casing structure is mainly a baffle type flow channel or a common spiral flow channel, the fluid cooling area of the baffle type flow channel is large, but there are many turns, which leads to large fluid flow resistance, which may reduce the flow of the cooling liquid or increase the temperature, reduce the heat dissipation efficiency of the motor, and further affect the normal work and service life of the equipment, and the fluid of the common spiral flow channel has fewer turns, so the fluid flow resistance is smaller than that of the baffle type flow channel, but the inlet and outlet path is longer, and the fluid cooling area is reduced, which affects the heat dissipation efficiency of the motor.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a novel oil cooling motor casing, which comprises a casing shell and a casing inner shell, the inside of the casing shell and the casing inner shell is communicated to form a flow channel structure, the flow channel structure is between the casing shell and the casing inner shell, one side of the casing shell is provided with a shell side plate, two groups of flow channel inlets and outlets are formed on one side of the shell side plate, the flow channel structure comprises a flow channel inlet and outlet structure, the flow channel inlet and outlet structure is the shape of the flow channel inlet and outlet, one side of the flow channel inlet and outlet structure is communicated with a flow structure, a plurality of parallel first flow channels, second flow channels and third flow channels are spirally distributed on the flow structure, and one side of the first flow channel, the second flow channel and the third flow channel is communicated with a concentrated flow channel.

[0007] Preferably, the casing shell further comprises an outer shell connected to one side of the shell side plate.

[0008] Preferably, the casing inner shell comprises an inner envelope connected to the inner side of the casing outer shell, and the outer ring of the inner envelope is arranged as a flow channel embedding plate.

[0009] Preferably, the concentrated flow channel is opposite to the position of the flow channel inlet and outlet.

[0010] Preferably, the concentrated flow channel is communicated with the spiral flow channel through a multi-channel flow channel.

[0011] Preferably, the multi-channel of the flow structure is not limited to three channels, and the number of channels can be set to two to five.

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] 1. The novel oil-cooled motor casing provided by the utility model is formed by the parallel arrangement of the multi-flow channels in the flow channel structure, the flow channel inlet and outlet structure is the channel of the oil circulation inlet and outlet flow structure, and the length of the inlet and outlet path of the flow channel must be reduced to reduce the flow resistance and increase the cooling area of the fluid during the oil circulation. On the basis of the original spiral flow channel, the flow channel is branched, that is, the original single flow channel is changed into the parallel multi-flow channels. Therefore, the flow channel inlet and outlet structure in the mechanism is simultaneously communicated with the first flow channel, the second flow channel and the third flow channel. In this way, the length of the inlet and outlet path of the flow channel can be reduced, the invalid area of the flow channel is reduced, the overall cooling area of the fluid is increased, the overall flow resistance is smaller than that of the single flow channel, the cooling efficiency of the casing of the motor is further improved, and the problem that the ordinary spiral flow channel inlet and outlet path is long in the existing oil-cooled motor casing structure, the cooling area of the fluid is reduced, and the heat dissipation efficiency of the motor is affected is solved.

[0014] 2. The novel oil-cooled motor casing provided by the utility model is formed by the parallel arrangement of the multi-flow channels in the flow channel structure, the concentrated flow channel concentrates the oil and spirally transports the oil to another group of flow channel inlet and outlet structures. The spiral transportation direction of the oil is adhered to during the transportation process. The advantages of the fewer turning positions of the ordinary spiral flow channel are retained, the original long inlet and outlet path of the spiral flow channel is improved, the cooling area of the fluid is further increased, the problem that the fluid cooling area of the baffle type flow channel in the existing oil-cooled motor casing structure is large but the turning positions are more, which leads to large flow resistance of the fluid, possible reduction of the cooling liquid flow or temperature rise, reduction of the heat dissipation efficiency of the motor, and further influence on the normal work and service life of the equipment is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a split structure schematic view of the casing outer shell of the utility model;

[0017] Figure 3The whole split structure schematic diagram of the utility model

[0018] Figure 4 The style of the flow channel structure of the utility model Figure 1 ;

[0019] Figure 5 The style of the flow channel structure of the utility model Figure 2 .

[0020] In the figure: 1, the casing shell; 11, the shell side plate; 111, the flow channel inlet and outlet; 12, the outer envelope; 2, the casing inner shell; 21, the inner envelope; 22, the flow channel embedded plate; 3, the flow channel structure; 31, the flow channel inlet and outlet structure; 32, the flow-through structure; 321, the first flow channel; 322, the second flow channel; 323, the third flow channel; 324, the concentrated flow channel; 325, the convoluted flow channel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] In order to further understand the content of the utility model, the utility model will be described in detail in combination with the drawings.

[0023] In combination with Figure 1The utility model discloses a novel oil cooling motor casing, including casing shell 1 and casing inner shell 2, the inside communication of casing shell 1 and casing inner shell 2 forms the flow channel structure 3, and the rotor assembly, stator assembly, motor casing are connected together to constitute by the direct drive motor through lower bearing, upper bearing, front end cover, rear end cover, and the oil cooling casing absorbs and conducts heat through circulating oil liquid to keep the equipment in the normal operation temperature range, the casing shell 1 in this oil cooling casing is arranged at the outside, and the casing inner shell 2 is arranged at the inside, and the flow channel structure 3 is communicated between casing shell 1 and casing inner shell 2, and the flow channel inlet and outlet structure 31 and flow structure 32 are the specific structure diagram of the opening of flow channel structure 3, and the flow channel structure 3 is the passage for oil liquid circulation, and the shape of flow channel inlet and outlet 111 corresponds flow channel inlet and outlet structure 31, and flow channel inlet and outlet structure 31 is the inlet and outlet passage of oil liquid circulation inlet and outlet flow structure 32, and when oil liquid circulates, to reduce the flow resistance, the structure of the flow resistance big deflection flow channel needs to be discarded, and in order to increase the cooling area of fluid, the length of the inlet and outlet path of flow channel must be reduced, therefore the flow channel inlet and outlet structure 31 in this mechanism is communicated first flow channel 321, second flow channel 322 and third flow channel 323 simultaneously, on the basis of the original spiral flow channel, the flow channel is branched, that is, the original single flow channel becomes multiple flow channels in parallel, which can reduce the length of the inlet and outlet path of flow channel, and further reduce the invalid area of flow channel, so that the overall cooling area of fluid is increased, and the overall flow resistance is smaller than the flow resistance of single flow channel, so that the cooling efficiency of the casing of motor is further improved, and the concentrated flow channel 324 concentrates oil liquid and spirally transports to another group of flow channel inlet and outlet structure 31, and the conveying process is attached to the spiral conveying direction of oil liquid, retains the advantages that the turning place of ordinary spiral flow channel is less, improves the defect that the original inlet and outlet path of spiral flow channel is long, and further increases the cooling area of fluid.

[0024] The utility model will be further described in connection with the embodiments.

[0025] Embodiment one:

[0026] In combination Figure 2 And Figure 3 Casing shell 1 also includes outer envelope 12 connected to one side of shell side plate 11, the wall thickness of shell side plate 11 is greater than outer envelope 12, and outer envelope 12 is mainly used for plugging flow channel, and flow channel inlet and outlet 111 are used for external inlet and outlet oil pipe.

[0027] Casing inner shell 2 includes inner envelope 21 connected to the inner side of casing shell 1, the outer ring of inner envelope 21 is arranged as flow channel embedding plate 22, one side of inner envelope 21 in casing inner shell 2 is smooth, used for embedding stator assembly, and the opening corresponding to the shape of flow structure 32 is formed on flow channel embedding plate 22 in casing inner shell 2, and flow channel embedding plate 22 is completely attached to the inside of casing shell 1 except the opening, without gap.

[0028] Embodiment two:

[0029] In combination Figure 4 And Figure 5 The oil liquid transported by the flow channel inlet and outlet structure 31 is circulated through the first flow channel 321, the second flow channel 322 and the third flow channel 323 to the concentrated flow channel 324, and the concentrated flow channel 324 is in a whole flow state, and the concentrated flow channel 324 is opposite to the position of the flow channel inlet and outlet structure 31, so as to facilitate the concentration of all oil liquids from one side.

[0030] One side of the concentrated flow channel 324 is communicated with a three-channel spiral flow channel 325, and the spiral flow channel 325 is communicated with the concentrated flow channel 324 through the first flow channel 321, the second flow channel 322 and the third flow channel 323.

[0031] The number of channels of the flow channel structure 32 is not limited to three channels, and the number of channels can be set to two to five, and the three channels composed of the first flow channel 321, the second flow channel 322 and the third flow channel 323 are examples, and the number of channels can be changed according to the spiral angle of the flow channel structure 32, so as to realize uniform distribution, and two channels are the minimum value, so as to distinguish ordinary spiral flow channels, and five channels are the maximum value, so as to prevent too much oil liquid from being distributed, so that the channels cannot be filled with oil liquid.

[0032] It should be noted that, in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new oil-cooled electric machine housing comprising a housing outer shell (1) and a housing inner shell (2) connected, characterized in that: The inner part of the casing shell (1) and the casing inner shell (2) is connected to form a flow channel structure (3); The flow channel structure (3) is between the casing shell (1) and the casing inner shell (2), and the flow channel structure (3) comprises a flow channel inlet and outlet structure (31), one side of the flow channel inlet and outlet structure (31) is connected with a flow passage structure (32), a plurality of groups of parallel first flow channels (321), second flow channels (322) and third flow channels (323) are spirally distributed on the flow passage structure (32), and one side of the first flow channels (321), the second flow channels (322) and the third flow channels (323) is connected with a concentrated flow channel (324).

2. A novel oil-cooled electric machine housing according to claim 1, characterized in that: One side of the casing shell (1) is provided with a shell side plate (11), one side of the shell side plate (11) forms two groups of flow channel inlets and outlets (111), the flow channel inlet and outlet structure (31) is formed in the shape of the flow channel inlets and outlets (111), and the casing shell (1) further comprises an outer sealing shell (12) connected to one side of the shell side plate (11).

3. A new oil-cooled motor housing according to claim 1, characterized in that: The casing inner shell (2) comprises an inner sealing shell (21) connected to the inner side of the casing shell (1), and an outer ring of the inner sealing shell (21) is provided as a flow channel embedding plate (22).

4. A novel oil-cooled motor housing according to claim 2, characterized in that: The concentrated flow channel (324) is opposite to the position of the flow channel inlets and outlets (111).

5. A novel oil-cooled motor housing according to claim 2, characterized in that: The concentrated flow channel (324) is connected with a spiral flow channel (325) through the first flow channels (321), the second flow channels (322) and the third flow channels (323), and the spiral flow channel (325) is connected with the flow channel inlets and outlets (111).

6. A new oil cooled motor housing according to claim 1 characterized by: The flow passage structure (32) is not limited to three passages, and the number of passages is set to two to five.

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