Frequency conversion all-in-one machine motor

Abstract

The utility model discloses a frequency conversion all-in-one machine motor, which comprises a motor main body, the motor main body comprises an outer shell, the rear end of the outer shell is provided with a heat dissipation structure, the heat dissipation structure comprises an outer fixed shell, the outer fixed shell is connected with the outer shell, a heat dissipation fan is arranged in the outer fixed shell, and a frequency converter body is arranged above the outer shell and the outer fixed shell. The frequency converter body comprises a fixed shell, a main control chip and an IGBT module are arranged in the fixed shell, the lower end of the fixed shell and the upper end of the outer fixed shell are provided with communicated notches, a flow guide plate is arranged in the outer fixed shell and used for guiding part of air into the notches, and heat dissipation holes are further formed in the side wall of the fixed shell. According to the utility model, the frequency converter body is connected with the motor main body, the frequency conversion integrated design is realized, meanwhile, the heat dissipation structure arranged at the rear end of the motor main body can also relatively realize air flow in the frequency converter body, the heat dissipation effect of the motor is improved, the heat dissipation of a chip in the frequency converter structure is also facilitated, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a variable-frequency integrated motor. Background Art

[0002] The variable-frequency control of a transmission motor is generally realized by controlling a frequency converter arranged near the motor. However, in this variable-frequency control, there is a long distance between the controller and the motor, which occupies a large space. At the same time, the long wire also has an increased situation of damage and failure rate. The utility model patent with the application number 202121916904.0 discloses a driving frequency converter integrated machine, which fixedly connects the frequency converter body close to the motor to realize the integration of the variable-frequency motor. However, in its structure, the heat dissipation of the frequency converter structure is realized through heat dissipation holes, while the heat dissipation of the existing motor can be realized by installing a fan structure. That is, in the prior art, the heat dissipation of the integrated frequency converter structure does not utilize the heat dissipation of the fan, and there is room for improvement. Content of the Utility Model

[0003] The purpose of the utility model is to provide a variable-frequency integrated motor that can ensure the efficient heat dissipation of the frequency converter structure in view of the deficiencies in the above background art.

[0004] To achieve the above purpose, a variable-frequency integrated motor of the utility model adopts the following technical solutions.

[0005] A variable-frequency integrated motor includes a motor main body, the motor main body includes an outer housing, a stator structure and a rotor structure are arranged inside the outer housing, and a heat dissipation structure is further arranged at the rear end of the outer housing. The heat dissipation structure includes an outer fixed shell, the outer fixed shell is connected to the outer housing, a heat dissipation fan is arranged inside the outer fixed shell, a frequency converter body is arranged above the outer housing and the outer fixed shell. The frequency converter body includes a fixed housing, a main control chip and an IGBT module are arranged inside the fixed housing. A communicating notch is opened at the lower end of the fixed housing and the upper end of the outer fixed housing body. A diversion plate is arranged inside the outer fixed shell, and the diversion plate is used to guide part of the wind into the notch. Heat dissipation holes are further arranged on the side wall of the fixed housing.

[0006] A further improvement of the variable-frequency integrated motor of the utility model is that a plurality of through holes are further arranged on the outer peripheral side of the outer fixed shell, and the through holes are arranged between the outer housing and the heat dissipation fan.

[0007] A further improvement of the variable-frequency integrated motor of the utility model is that a fixing plate is fixedly connected inside the outer fixed shell, a connecting plate is arranged on the outer edge of the fixing plate, a positioning notch is opened at the center of the fixing plate, and the positioning notch is connected to a fan mounting plate through a connecting plate, and a wind blade structure is rotatably connected to the fan mounting plate.

[0008] A further improvement of the motor of the variable-frequency integrated machine of the present utility model lies in that the guide plate is arranged above the positioning notch, and the lower end of the guide plate is lower than the upper end of the wind blade structure.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] By connecting the frequency converter body with the motor body, the present utility model realizes the variable-frequency integrated design. At the same time, the heat dissipation structure arranged at the rear end of the motor body can also realize the relative flow of wind inside the frequency converter body, improving the heat dissipation effect of the motor and facilitating the heat dissipation of the chips inside the frequency converter structure, thereby extending the service life. Description of the Drawings

[0011] Figure 1 is a cross-sectional structural schematic diagram of the present utility model;

[0012] Figure 2 is a structural schematic diagram of the fixing plate of the present utility model;

[0013] In the figure: 1 outer housing, 2 outer fixing shell, 3 wind blade structure, 4 outer fixing shell, 5 cover shell, 6 notch, 7 heat dissipation hole, 8 fixing plate, 9 guide plate, 10 connecting plate, 11 fan mounting plate. Detailed Embodiment

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] As Figure 1 and Figure 2 shown, a variable-frequency integrated machine motor includes a motor body. The motor body includes an outer housing 1. A stator structure and a rotor structure are arranged inside the outer housing. A heat dissipation structure is further arranged at the rear end of the outer housing. The heat dissipation structure includes an outer fixing shell 2. The outer fixing shell is connected to the outer housing, and the connection method can be a detachable connection method such as bolt connection. A heat dissipation fan is arranged inside the outer fixing shell. A frequency converter body is arranged above the outer housing and the outer fixing shell. The frequency converter body includes a fixing shell 4. A main control chip and an IGBT module are arranged inside the fixing shell. The variable-frequency control structure inside the fixing shell is the prior art. A notch 6 that communicates with each other is opened at the lower end of the fixing shell and the upper end of the outer fixing shell body. A guide plate 9 is arranged inside the outer fixing shell. The guide plate is used to guide part of the wind into the notch. Heat dissipation holes 7 are also arranged on the side wall of the fixing shell. The bottom end of the fixing shell is connected to the outer housing and the outer fixing shell through a connecting piece. A cover shell 5 is arranged above the fixing shell.

[0016] A plurality of through holes (not shown in the figure) are further provided on the outer peripheral side of the outer fixing shell, and the through holes are arranged between the outer shell body and the cooling fan for outward heat dissipation at the rear end of the motor.

[0017] Specifically, a fixing plate 8 is arranged in the outer fixing shell. A connecting plate 10 is provided on the outer edge of the fixing plate, and the connecting plate is connected to the outer fixing shell. A positioning notch is formed in the center of the fixing plate, and the positioning notch is connected to the fan mounting plate 11 through a connecting plate. A wind blade structure 3 is rotatably connected to the fan mounting plate. The wind blade structure is a prior art.

[0018] Furthermore, a guide plate is arranged above the positioning notch, and the lower end of the guide plate is lower than the upper end of the wind blade structure.

[0019] The working principle of the present utility model is as follows: when the heat dissipation structure works, the wind blade structure rotates, external air enters, blows towards the rear end of the motor main body, and dissipates heat outward. The material guide plate is designed to deflect part of the blowing air to the notch and enter the fixing shell, so as to perform air-cooled heat dissipation on the structures such as the frequency conversion control chip in the fixing shell, and then the air flows out from the heat dissipation holes on the side wall of the fixing shell.

[0020] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A variable-frequency integrated motor, comprising a motor main body, the motor main body including a housing body, a stator structure and a rotor structure being provided inside the housing body, characterized in that: A heat dissipation structure is further provided at the rear end of the outer housing. The heat dissipation structure includes an outer fixed shell which is connected to the outer housing. A heat dissipation fan is provided inside the outer fixed shell. An inverter body is provided above the outer housing and the outer fixed shell. The inverter body includes a fixed housing, and a main control chip and an IGBT module are provided inside the fixed housing. A communicating notch is formed at the lower end of the fixed housing and the upper end of the outer fixed housing body. A flow guide plate is provided inside the outer fixed shell, and the flow guide plate is used to guide part of the air to enter the notch. Heat dissipation holes are further provided on the side wall of the fixed housing.

2. The variable frequency integrated motor according to claim 1, wherein: A plurality of through holes are further provided on the outer peripheral side of the outer fixed shell, and the through holes are arranged between the outer housing and the heat dissipation fan.

3. The variable-frequency integrated motor according to claim 2, characterized in that: A fixing plate is fixedly connected inside the outer fixed shell. A connecting plate is provided at the outer edge of the fixing plate. A positioning notch is formed at the center of the fixing plate. The positioning notch is connected to a fan mounting plate through a connecting plate, and a blade structure is rotatably connected to the fan mounting plate.

4. The variable frequency integrated motor according to claim 3, wherein: The flow guide plate is arranged at the upper part of the positioning notch, and the lower end of the flow guide plate is lower than the upper end of the blade structure.

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