Electric machine device with shielding structure

Abstract

The utility model relates to motor equipment with a shielding structure, which comprises a motor body, the motor body comprises a casing, a stator iron core is mounted in the casing, a shielding sleeve is distributed on the inner side of the stator iron core, a rotating space is formed in the shielding sleeve, a rotor device is movably arranged in the rotating space, a guide shaft is connected onto the rotor device, and the guide shaft is connected onto the stator iron core. One end of the machine shell is connected with a front end cover, the rotor device penetrates through the front end cover, the other end of the machine shell is connected with a rear end cover, and a guide device is arranged on the inner side of the rear end cover and makes contact with the guide shaft. Therefore, the independent shielding sleeve is arranged, the situation of current breakdown can be effectively avoided in the operation period, and effective insulation protection is achieved. And meanwhile, heat dissipation can be realized in an auxiliary manner. Moreover, the stator iron core with the shielding sleeve enhances the structural rigidity of the stator iron core, so that even if the rotor device is abnormally shaken and impacted, the rotor device can be prevented from being damaged, subsequent replacement and troubleshooting are facilitated, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a motor equipment, especially a motor equipment with shielding structure. BACKGROUND

[0002] For the existing motor equipment, the rotor device and the stator core are gap type structure, and there is no isolation mechanism. During operation, the stator core can cause current impact to the rotor device, and then the device connected with the rotor device can be affected and abnormal operation occurs.

[0003] At the same time, after long time operation, the gap type structure can bring heat energy aggregation, which affects the overall heat dissipation of the motor equipment. And the guide shaft attached to the rotor device can vibrate, which affects the stability of the coaxial rotation.

[0004] In view of the above defects, the designer actively researches and innovates to create a motor equipment with shielding structure, which has more industrial utilization value. INVENTION CONTENTS

[0005] To solve the above technical problems, the purpose of the utility model is to provide a motor equipment with shielding structure.

[0006] The motor equipment with shielding structure of the utility model, including motor body, wherein: the motor body includes a machine shell, the machine shell is installed with stator core, the inner side of the stator core is distributed with shielding sleeve, the shielding sleeve is in, constitutes rotating space, the rotating space is movably provided with rotor device, the rotor device is connected with guide shaft, one end of the machine shell is connected with front end cover, the rotor device passes through the front end cover, the other end of the machine shell is connected with rear end cover, the inner side of the rear end cover is provided with guide device, the guide device is in contact with the guide shaft.

[0007] Further, the motor equipment with shielding structure, wherein the shielding sleeve is an integral injection molding structure, the thickness of the shielding sleeve is 0.3 to 1.3 cm.

[0008] Further, the motor equipment with shielding structure, wherein the inner side of the stator core is distributed with limiting groove, and the shielding sleeve is embedded in the limiting groove.

[0009] Further, the motor equipment with shielding structure, wherein the shielding sleeve is an epoxy coating layer encapsulation structure, the periphery of the rotor device and the inner side of the stator core form an encapsulation space, and the shielding sleeve encapsulates and fills the encapsulation space.

[0010] Further, the motor equipment with shielding structure, wherein one end of the stator core is provided with a limiting boss, the limiting boss is in contact with the front end cover, the front end cover is connected with the shell through a positioning screw, the other end of the stator core is provided with a contact step, the contact step is in contact with the rear end cover, and the rear end cover is connected with the shell through a positioning screw.

[0011] Further, the motor equipment with shielding structure, wherein a sealing washer is arranged between the limiting boss and the front end cover, and a sealing washer is arranged between the contact step and the rear end cover.

[0012] Further, the motor equipment with shielding structure, wherein a positioning hole is arranged at the center of the rotor device, and the guide shaft is in interference fit with the positioning hole.

[0013] Further, the motor equipment with shielding structure, wherein an outer through hole is arranged on the guide shaft.

[0014] Further, the motor equipment with shielding structure, wherein the guide device is a bearing assembly, the rear end cover is provided with an embedding groove at a corresponding position, the bearing assembly is installed in the embedding groove, and the end of the guide shaft is connected into the bearing assembly.

[0015] Further, the motor equipment with shielding structure, wherein the shell is externally attached with a rear nameplate assembly.

[0016] By the above scheme, the motor equipment with shielding structure has at least the following advantages:

[0017] 1. The independent shielding sleeve can effectively avoid current breakdown during operation, realize effective insulation protection, and assist in heat dissipation. Moreover, the stator core with the shielding sleeve enhances the structural rigidity of itself, avoids damage even if abnormal shaking and impact of the rotor device, facilitates subsequent replacement and troubleshooting, and reduces maintenance cost.

[0018] 2. The shielding sleeve can adopt an integral injection molding structure, facilitating quick assembly and meeting the shielding protection needs of small-power motor operation.

[0019] 3. The shielding sleeve can also adopt an epoxy coating layer packaging, realizing a more fitted layout, accurately adjusting according to the gap of the actual rotation space, and meeting the shielding needs of large-power motor under extreme operation.

[0020] 4. The guide device can be additionally arranged to realize auxiliary limiting of the guide shaft and better improve operation stability.

[0021] 5. The overall structure is simple, appropriate shielding sleeve structures can be selected according to actual application needs, and implementation is facilitated.

[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 below with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the cross-sectional structure schematic diagram of motor equipment with shielding structure.

[0024] The meaning of various reference signs in the drawing is as follows.

[0025] 1 housing 2 stator core

[0026] 3 shielding sleeve 4 rotor device

[0027] 5 guide shaft 6 front end cover

[0028] 7 rear end cover 8 external through hole

[0029] 9 guide device 10 limiting edge DETAILED DESCRIPTION

[0030] The specific implementation of the utility model will be further described in detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0031] As Figure 1 The motor equipment with shielding structure, comprising a motor body, which is different in that: the motor body comprises a housing 1 for isolating the outside. At the same time, the stator core 2 is installed in the housing 1, which is convenient for cooperating with the subsequent installed energy component to realize the rotary drive of the subsequent rotor device 4. And, in order to have better insulation and heat conduction effect, the shielding sleeve 3 is distributed on the inner side of the stator core 2, and the rotating space is formed in the shielding sleeve 3, and the rotor device 4 is movably arranged in the rotating space. During use, in order to realize effective driving transmission, the guide shaft 5 is connected to the rotor device 4. During implementation, in order to meet the combination and limiting of the front and rear ends of the motor body, one end of the housing 1 is connected with the front end cover 6, the rotor device 4 passes through the front end cover 6, and the other end of the housing 1 is connected with the rear end cover 7. Furthermore, the guide device 9 is arranged on the inner side of the rear end cover 7, and the guide device 9 is in contact with the guide shaft 5. In this way, the guide shaft 5 can meet smooth operation without unnecessary shaking, and proper coaxial restraint is realized.

[0032] In combination with a preferred embodiment of the utility model, the shielding sleeve 3 is an integral injection molding structure, and the thickness of the shielding sleeve 3 is 0.3-1.3 cm. In this way, the shielding sleeve 3 can be prepared in advance, thereby shortening the overall installation time. During processing, in order to achieve an effective shielding and fitting effect, the inner side of the stator core 2 is provided with a limiting groove, and the shielding sleeve 3 is embedded in the limiting groove.

[0033] Further, in order to better improve the filling and shielding effect, the shielding sleeve 3 is packaged by an epoxy coating layer. The outer periphery of the rotor device 4 and the inner side of the stator core 2 form a packaging space, and the shielding sleeve 3 fills and packages the packaging space. During implementation, in order not to affect the actual operation of the rotor device 4, the rear end cover 7 can be pre-installed before the rotor device 4 is installed, and the inner wall of the stator core 2 is packaged by an epoxy coating layer. After the shielding sleeve 3 is formed and solidified, the inner wall of the shielding sleeve 3 is trimmed to ensure that the rotor device 4 does not cause unnecessary hard friction after being placed. During implementation, an annular cutter or other suitable circular arc surface tool can be used for processing.

[0034] In combination with actual implementation, in order to have better combination and integration, one end of the stator core 2 is provided with a limiting boss, the limiting boss is in contact with the front end cover 6, and the front end cover 6 is connected to the casing 1 by a positioning screw. Meanwhile, the other end of the stator core 2 is provided with a contact step, the contact step is in contact with the rear end cover 7, and the rear end cover 7 is connected to the casing 1 by a positioning screw. In order to fill the joint gap that may be caused by tolerances, a sealing washer can be arranged between the limiting boss and the front end cover 6, and a sealing washer can be arranged between the contact step and the rear end cover 7.

[0035] Further, the center of the rotor device 4 is provided with a positioning hole, and the guide shaft 5 is in interference fit with the positioning hole. Meanwhile, the guide shaft 5 can be extended by a limiting edge 10 at the end thereof to avoid accidental loosening of the guide shaft 5. Furthermore, the guide shaft 5 can be provided with an external through hole 8. In this way, the driven end of the corresponding equipment can be connected through the external through hole 8, and the corresponding locking bolt is locked, without the need for additional sleeve, and the operation is convenient.

[0036] Furthermore, in order to achieve smooth rotation and guide and avoid unnecessary restraint stress, the guide device 9 is a bearing assembly, the rear end cover 7 is provided with an embedded groove at the corresponding position, the bearing assembly is installed in the embedded groove, and the end of the guide shaft 5 is connected to the bearing assembly. In this way, the end of the guide shaft 5 is properly restrained, and the overall concentric rotation of the guide shaft 5 is satisfied.

[0037] In addition, the utility model can be attached to the casing 1 after the nameplate assembly. The corresponding power parameters and rotational speed parameters can be marked, and the user can quickly identify and use them.

[0038] The working principle of the utility model is as follows:

[0039] The guide shaft 5 is connected with the corresponding device as required. During the operation of the rotor device 4, effective insulation protection is provided, and unnecessary conduction does not occur due to the electrified state of the stator core 2. Meanwhile, the generated heat energy can be conducted to the stator core 2 through the surrounding shielding sleeve 3, and then transmitted to the shell 1 through the stator core 2 to achieve rapid heat dissipation. In addition, the guide device 9 can limit the guide shaft 5 in a non-large intervention condition, so as to avoid the so-called "shaft beating" phenomenon due to abnormal power.

[0040] As can be seen from the above description and in combination with the drawings, after the utility model is adopted, the following advantages are obtained:

[0041] 1. The independent shielding sleeve can effectively avoid current breakdown during operation and achieve effective insulation protection. Meanwhile, heat dissipation can be assisted. The stator core with the shielding sleeve enhances the structural rigidity of itself, so that even if abnormal shaking and impact of the rotor device occur, damage can be avoided, subsequent replacement and troubleshooting are facilitated, and maintenance cost is reduced.

[0042] 2. The shielding sleeve can adopt an integrated injection molding structure, so that rapid assembly is facilitated, and the shielding protection needs of a small-power motor during operation are met.

[0043] 3. The shielding sleeve can also be packaged with an epoxy coating layer to achieve a more fitted layout, so that accurate adjustment can be made according to the gap of the actual rotation space, and the shielding needs of a large-power motor during extreme operation are met.

[0044] 4. The guide device can be additionally provided to assist in limiting the guide shaft and better improve the operation stability.

[0045] 5. The overall structure is simple, and appropriate shielding sleeve structures can be selected according to actual application needs for easy implementation.

[0046] In addition, the indicated directions or positional relationships described in the utility model are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated devices or structures must have a specific direction or be operated in a specific direction, so it cannot be understood as a limitation on the utility model.

[0047] The above description is only the preferred embodiments of the utility model, and is not used to limit the utility model. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the technical principles of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the utility model.

Claims

1. An electric machine apparatus with a shielding structure, comprising an electric machine body, characterized by: The motor body comprises a shell, a stator core is arranged in the shell, a shielding sleeve is distributed on the inner side of the stator core, a rotating space is formed in the shielding sleeve, a rotor device is movably arranged in the rotating space, a guide shaft is connected to the rotor device, a front end cover is connected to one end of the shell, the rotor device passes through the front end cover, a rear end cover is connected to the other end of the shell, a guide device is arranged on the inner side of the rear end cover, and the guide device is in contact with the guide shaft.

2. The electric motor apparatus with a shielding structure according to claim 1, characterized by: The shielding sleeve is an integral injection molding structure, and the thickness of the shielding sleeve is 0.3-1.3 cm.

3. The electric motor apparatus with a shielding structure according to claim 1, characterized by: The inner side of the stator core is distributed with a limiting groove, and the shielding sleeve is embedded in the limiting groove.

4. The electric motor apparatus with a shielding structure according to claim 1, characterized by: The shielding sleeve is packaged by an epoxy coating layer, the outer periphery of the rotor device and the inner side of the stator core form a packaging space, and the shielding sleeve fills the packaging space.

5. The electric motor apparatus with a shielding structure according to claim 1, characterized by: One end of the stator core is provided with a limiting boss, the limiting boss is in contact with the front end cover, the front end cover is connected to the shell through a positioning screw, the other end of the stator core is distributed with a contact step, the contact step is in contact with the rear end cover, and the rear end cover is connected to the shell through a positioning screw.

6. The electric machine apparatus with a shielding structure according to claim 5, characterized by: Sealing washers are arranged between the limiting boss and the front end cover and between the contact step and the rear end cover.

7. The electric motor apparatus with a shielding structure according to claim 1, characterized by: A positioning hole is arranged at the center of the rotor device, and the guide shaft is in interference fit with the positioning hole.

8. The electric motor apparatus with a shielding structure according to claim 1, characterized by: An outer through hole is arranged on the guide shaft.

9. The electric motor apparatus with a shielding structure according to claim 1, characterized by: The guide device is a bearing assembly, the rear end cover is distributed with an embedding groove at a corresponding position, the bearing assembly is arranged in the embedding groove, and the tail end of the guide shaft is connected to the bearing assembly.

10. The electric machine apparatus with a shielding structure according to claim 1, characterized by: The shell is externally attached with a rear nameplate assembly.

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