A direct current motor stator assembly

Abstract

The utility model discloses a kind of DC motor stator assemblies, it is related to motor stator technical field, including stator core, the outside of stator core is profiled with annular heat dissipation groove, the annular heat dissipation groove is provided with multiple, multiple The annular heat dissipation groove is evenly distributed along the long side direction of stator core, and the outside of stator core is located in the middle of two annular heat dissipation grooves and is provided with connecting port, the connecting port is communicated with annular heat dissipation groove;The annular heat dissipation groove, connecting port inside is provided with heat exchange component, the heat exchange component is used to provide flow channel for heat exchange medium, to realize the heat dissipation operation to stator core in this way.The utility model is directly cooled to stator core by C type circulating heat exchange pipe by setting heat exchange component, compared with the structure that traditional stator core passes heat to motor shell and is cooled by air flow, its heat exchange efficiency is higher, faster, and can further improve the heat dissipation efficiency of stator core.

Description

Technical Field

[0001] This utility model relates to the field of motor stator technology, specifically a DC motor stator assembly. Background Technology

[0002] A DC motor is a rotating electrical machine that converts DC electrical energy into mechanical energy (DC motor) or mechanical energy into DC electrical energy (DC generator). The structure of a DC motor consists of two main parts: the stator and the rotor. The stationary part of the DC motor during operation is called the stator, and its main function is to generate a magnetic field.

[0003] The stator is mainly composed of the stator core and coils. During the operation of the motor, the coils will heat up due to the current. Currently, the traditional heat dissipation relies on the stator core to transfer the heat to the outer casing, and then relies on the air for heat dissipation. However, the air has a poor thermal conductivity, and the heat dissipation effect is not ideal. Based on this, a DC motor stator assembly is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a DC motor stator assembly in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a DC motor stator assembly, including a stator core, an annular heat dissipation groove formed on the outer side of the stator core, a plurality of annular heat dissipation grooves being provided, the plurality of annular heat dissipation grooves being evenly distributed along the long side direction of the stator core, and a connection port being provided on the outer side of the stator core between two annular heat dissipation grooves, the connection port being connected to the annular heat dissipation groove.

[0006] The annular heat dissipation groove and the inner side of the connection port are provided with heat exchange components. The heat exchange components are used to provide a flow channel for the heat exchange medium, thereby realizing the heat dissipation operation of the stator core.

[0007] The heat exchange assembly includes a C-type circulating heat exchange tube, an inlet pipe, and an outlet pipe;

[0008] Multiple C-type circulating heat exchange tubes are provided, and the multiple C-type circulating heat exchange tubes are respectively sleeved and installed inside multiple annular heat dissipation grooves. The two adjacent C-type circulating heat exchange tubes are connected end to end. The liquid inlet pipe and liquid outlet pipe are distributed inside the connection port. The liquid inlet pipe is connected to the outlet end of the foremost C-type circulating heat exchange tube and the liquid inlet pipe is connected to the inlet end of the last C-type circulating heat exchange tube.

[0009] The inlet pipe, C-type circulating heat exchange pipe, and outlet pipe form a circulating channel for the flow of heat exchange medium, and the heat exchange medium exchanges heat with the stator core to realize the heat dissipation and cooling operation of the stator core.

[0010] A protective component is also provided on the outside of the heat exchange component, which is used to protect the heat exchange component during operation.

[0011] As a further improvement of this utility model: the protective component includes an annular rubber sleeve and a sealing plate;

[0012] The number of annular rubber sleeves matches the number of annular heat dissipation slots. The annular rubber sleeves are fitted inside the annular heat dissipation slots to wrap and protect the C-type circulating heat exchange tubes. The sealing pieces are distributed between the two annular rubber sleeves and are connected and fixed to the annular rubber sleeves. The sealing pieces are snapped into the inside of the connection port to seal the opening of the connection port.

[0013] As a further embodiment of this utility model: the inner side of the C-shaped circulating heat exchange tube is attached to the inner wall of the annular heat dissipation groove, the outer diameter of the C-shaped circulating heat exchange tube is smaller than the outer diameter of the stator core, the outer diameter of the annular rubber sleeve matches the outer diameter of the stator core, and the inner diameter of the annular rubber sleeve matches the outer diameter of the C-shaped circulating heat exchange tube.

[0014] As a further embodiment of this utility model: one of the connection ports extends through to the rear end of the stator core, and the liquid inlet pipe and liquid outlet pipe extend through the connection port to the outside of the rear end of the stator core.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By setting up heat exchange components, the heat exchange medium directly cools the stator core through C-shaped circulating heat exchange tubes. Compared with the traditional structure where the stator core transfers heat to the motor housing and dissipates heat through airflow, this method has higher and faster heat exchange efficiency, which can further improve the heat dissipation efficiency of the stator core. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0018] Fig. 2 This is a disassembled schematic diagram of the protective components of this utility model;

[0019] Fig. 3 This is a disassembled schematic diagram of the protective component and heat exchange component of this utility model.

[0020] In the diagram: 1. Stator core; 2. Annular heat dissipation groove; 3. Connection port; 4. Heat exchange assembly; 401. C-type circulating heat exchange tube; 402. Liquid inlet pipe; 403. Liquid outlet pipe; 5. Protective assembly; 501. Annular rubber sleeve; 502. Sealing plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figs. 1-3 In this embodiment of the present invention, a DC motor stator assembly includes a stator core 1, an annular heat dissipation groove 2 is formed on the outer side of the stator core 1, and multiple annular heat dissipation grooves 2 are provided. The multiple annular heat dissipation grooves 2 are evenly distributed along the long side of the stator core 1, and a connection port 3 is opened on the outer side of the stator core 1 between two annular heat dissipation grooves 2, and the connection port 3 is connected to the annular heat dissipation groove 2.

[0023] A heat exchange component 4 is provided inside the annular heat dissipation groove 2 and the connection port 3. The heat exchange component 4 is used to provide a flow channel for the heat exchange medium, thereby realizing the heat dissipation operation of the stator core 1.

[0024] Heat exchange assembly 4 includes a C-type circulating heat exchange tube 401, an inlet pipe 402, and an outlet pipe 403;

[0025] Multiple C-type circulating heat exchange tubes 401 are provided. Multiple C-type circulating heat exchange tubes 401 are respectively sleeved and installed inside multiple annular heat dissipation grooves 2, and two adjacent C-type circulating heat exchange tubes 401 are connected end to end. The liquid inlet pipe 402 and the liquid outlet pipe 403 are distributed inside the connection port 3. The liquid inlet pipe 402 is connected to the outlet end of the foremost C-type circulating heat exchange tube 401, and the liquid inlet pipe 402 is connected to the inlet end of the last C-type circulating heat exchange tube 401.

[0026] The liquid inlet pipe 402, the C-type circulating heat exchange pipe 401, and the liquid outlet pipe 403 form a circulation channel for the flow of heat exchange medium. The heat exchange medium exchanges heat with the stator core 1 to realize the heat dissipation and cooling operation of the stator core 1.

[0027] A protective component 5 is also provided on the outside of the heat exchange component 4. The protective component 5 is used to protect the heat exchange component 4.

[0028] A connection port 3 extends through to the rear end of the stator core 1, and the liquid inlet pipe 402 and the liquid outlet pipe 403 extend through the connection port 3 to the outside of the rear end of the stator core 1.

[0029] In this embodiment, it should be noted that when this stator assembly is installed and used, the rear end of the corresponding motor housing has a reserved mounting hole for the liquid inlet pipe 402 and the liquid outlet pipe 403 to pass through, and the liquid inlet pipe 402 and the liquid outlet pipe 403 are connected to the external heat exchange medium pipeline.

[0030] When the DC motor is running, the pump in the external heat exchange medium pipeline delivers the heat exchange medium to the inlet pipe 402 and flows sequentially into multiple C-type circulating heat exchange tubes 401, and then flows out through the outlet pipe 403. During this process, the heat exchange medium exchanges heat with the stator core 1 through the C-type circulating heat exchange tubes 401, thereby cooling the stator core 1. Compared with the traditional structure where the stator core transfers heat to the motor casing and dissipates heat through airflow, this heat exchange efficiency is higher and faster, which can further improve the heat dissipation efficiency of the stator core.

[0031] Please refer to this carefully. Figs. 1-3 The protective component 5 includes an annular rubber sleeve 501 and a sealing plate 502;

[0032] The number of annular rubber sleeves 501 matches the number of annular heat dissipation grooves 2. The annular rubber sleeves 501 are fitted inside the annular heat dissipation grooves 2 to wrap and protect the C-type circulating heat exchange tubes 401. The sealing pieces 502 are distributed between the two annular rubber sleeves 501 and are connected and fixed to the annular rubber sleeves 501. The sealing pieces 502 are snapped into the inside of the connection port 3 to seal the opening of the connection port 3.

[0033] The inner side of the C-type circulating heat exchange tube 401 is attached to the inner wall of the annular heat dissipation groove 2. The outer diameter of the C-type circulating heat exchange tube 401 is smaller than the outer diameter of the stator core 1. The outer diameter of the annular rubber sleeve 501 matches the outer diameter of the stator core 1, and the inner diameter of the annular rubber sleeve 501 matches the outer diameter of the C-type circulating heat exchange tube 401.

[0034] In this embodiment, the heat exchange component 4 can be fully wrapped by the annular rubber sleeve 501 and the sealing piece 502. This not only prevents the heat exchange component 4 from being damaged by contact and collision with external objects during storage and transportation, but also isolates the heat exchange component 4 from the motor housing during use, preventing the heat exchange component 4 from dissipating heat from the motor housing, which would reduce the heat dissipation efficiency of the stator core 1.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A DC motor stator assembly, comprising a stator core (1), characterized in that, The stator core (1) has an annular heat dissipation groove (2) formed on its outer side. Multiple annular heat dissipation grooves (2) are provided and are evenly distributed along the long side of the stator core (1). A connection port (3) is provided on the outer side of the stator core (1) between two annular heat dissipation grooves (2). The connection port (3) is connected to the annular heat dissipation groove (2). The annular heat dissipation groove (2) and the connection port (3) are provided with a heat exchange component (4). The heat exchange component (4) is used to provide a flow channel for the heat exchange medium, thereby realizing the heat dissipation operation of the stator core (1). The heat exchange assembly (4) includes a C-type circulating heat exchange tube (401), an inlet pipe (402), and an outlet pipe (403). Multiple C-type circulating heat exchange tubes (401) are provided. Multiple C-type circulating heat exchange tubes (401) are respectively sleeved and installed inside multiple annular heat dissipation grooves (2). Two adjacent C-type circulating heat exchange tubes (401) are connected end to end. The liquid inlet pipe (402) and liquid outlet pipe (403) are distributed inside the connection port (3). The liquid inlet pipe (402) is connected to the outlet end of the C-type circulating heat exchange tube (401) at the front end and the liquid inlet pipe (402) is connected to the inlet end of the C-type circulating heat exchange tube (401) at the rear end. The liquid inlet pipe (402), the C-type circulating heat exchange pipe (401), and the liquid outlet pipe (403) form a circulating channel for the flow of heat exchange medium. The heat exchange medium exchanges heat with the stator core (1) to realize the heat dissipation and cooling operation of the stator core (1). A protective component (5) is also provided on the outside of the heat exchange component (4), which is used to protect the heat exchange component (4).

2. The DC motor stator assembly according to claim 1, characterized in that, The protective component (5) includes an annular rubber sleeve (501) and a sealing plate (502). The number of annular rubber sleeves (501) matches the number of annular heat dissipation grooves (2). The annular rubber sleeves (501) are fitted inside the annular heat dissipation grooves (2) to wrap and protect the C-type circulating heat exchange tubes (401). The sealing pieces (502) are distributed between the two annular rubber sleeves (501) and are connected and fixed to the annular rubber sleeves (501). The sealing pieces (502) are snapped into the inside of the connection port (3) to seal the opening of the connection port (3).

3. A DC motor stator assembly according to claim 2, characterized in that, The inner side of the C-type circulating heat exchange tube (401) is attached to the inner wall of the annular heat dissipation groove (2). The outer diameter of the C-type circulating heat exchange tube (401) is smaller than the outer diameter of the stator core (1). The outer diameter of the annular rubber sleeve (501) matches the outer diameter of the stator core (1), and the inner diameter of the annular rubber sleeve (501) matches the outer diameter of the C-type circulating heat exchange tube (401).

4. A DC motor stator assembly according to claim 1, characterized in that, One of the connection ports (3) extends through to the rear end of the stator core (1), and the liquid inlet pipe (402) and liquid outlet pipe (403) extend through the connection port (3) to the outside of the rear end of the stator core (1).

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