Sealing structure of EC motor

Abstract

The utility model discloses a sealing structure of an EC motor, which comprises a motor end cover and a motor base, any one of the motor end cover and the motor base is provided with an annular boss, and the other one of the motor end cover and the motor base is provided with an annular groove matched with the annular boss. According to the technical scheme provided by the utility model, a combined mode of matching of double rubber and the boss is adopted, the annular boss and the sealing rings on the two sides are additionally arranged compared with a conventional structure, the sealing effect is greatly improved, and the two semicircular accommodating grooves are additionally arranged on the motor base, so that the sealing effect is greatly improved. Due to the characteristic, the rubber sealing ring can be automatically deformed and filled into the semicircle after being extruded, overflowing is avoided, and the sealing performance is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor sealing, in particular to a sealing structure of an EC motor. Background Art

[0002] The conventional sealing structure of existing motors adopts a structure in which a rubber ring is buried in a groove and a seal is formed by fastening the motor base and the motor end cover. During actual assembly, this sealing structure has the risk of the rubber being compressed and deformed and overflowing out of the sealing groove. In addition, in the presence of condensation in some application scenarios, this sealing structure cannot fully meet the sealing requirements. Utility Model Content

[0003] Technical problems to be solved by utility models

[0004] The technical problem to be solved by the utility model is to provide a sealing structure for an EC motor, which solves the problem that water vapor intrudes into the inside of the motor and causes failure when the motor is used in a condensation environment.

[0005] Technical Solution

[0006] In order to solve the above problems, the technical solution provided by the utility model is:

[0007] A sealing structure of an EC motor comprises a motor end cover and a motor base, wherein one of the motor end cover and the motor base is provided with an annular boss, and the other of the motor end cover and the motor base is provided with an annular groove matched with the annular boss.

[0008] Furthermore, sealing grooves are provided on both inner and outer sides of the annular boss, and sealing rings are provided in the sealing grooves.

[0009] Furthermore, a receiving groove is provided in an end wall of the sealing groove on the inner and outer sides away from the annular boss.

[0010] Furthermore, the accommodating groove is semicircular.

[0011] Beneficial Effects

[0012] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0013] The technical solution provided by the utility model adopts a combination of double rubber + boss cooperation, and compared with the conventional structure, an annular boss and sealing rings on both sides are added, which greatly improves the sealing effect, and two semicircular accommodating grooves are added to the motor base. This feature can automatically deform the rubber sealing ring after being squeezed and fill it into the semicircle without overflowing, thereby further improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0015] Figure 2 It is a partial enlarged view of an embodiment of the utility model. DETAILED DESCRIPTION

[0016] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0017] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0018] Example

[0019] Combined with Figure 1-2 A sealing structure of an EC motor is composed of a motor end cover 13, a motor base 10, an annular boss 11, a sealing ring 12, and a receiving groove 14.

[0020] The motor end cover 13 is abutted and fixed to the motor base 10. After fixation, a cavity for accommodating motor components is formed inside the motor end cover 13 and the motor base 10. Relevant components for realizing motor functions are installed in the cavity formed after the motor end cover 13 and the motor base 10 are abutted and fixed. The motor end cover 13 and the motor base 10 serve as outer shells for support and waterproof and dustproof purposes. Therefore, the abutment position between the motor end cover 13 and the motor base 10 needs to be sealed to maintain a high sealing effect and reduce the impact on the internal structure.

[0021] One of the motor end cover 13 and the motor base 10 is provided with an annular boss 11, and the other corresponding one is provided with a groove for matching with the annular boss 11.

[0022] An annular boss 11 is disposed on either the motor end cover 13 or the motor base 10 , and an annular groove matched with the annular boss 11 is disposed on the other of the motor end cover 13 and the motor base 10 .

[0023] Sealing grooves for installing a sealing ring 12 are provided on both inner and outer sides of the annular boss 11 . A sealing ring 12 is provided in the sealing groove. The sealing ring 12 is preferably a rubber sealing ring 12 .

[0024] After the motor end cover 13 is abutted and fixed with the motor base 10, the annular boss 11 is inserted into the fantasy groove, and the sealing ring 12 in the sealing groove is used to further seal the annular boss 11 after it cooperates with the reversing groove. The sealing ring 12 can further seal the connection gap formed by the annular boss 11 and the annular groove.

[0025] The sealing grooves on the inner and outer sides are provided with a receiving groove 14 in the end wall on one side away from the annular boss 11. The receiving groove 14 is used when the motor end cover 13 abuts against the motor base 10. When the sealing ring 12 is squeezed and slightly deformed, the deformed sealing ring 12 can enter the receiving groove 14, so that the sealing ring 12 maintains a good sealing effect. The receiving groove 14 is preferably semicircular to facilitate receiving the local protrusion of the sealing ring 12.

[0026] In a general embodiment

[0027] The motor base 10 is provided with an annular boss 11, and the inner and outer sides of the annular boss 11 are provided with sealing grooves for installing a sealing ring 12. The sealing ring 12 is installed in the sealing groove, and the sealing ring 12 is provided with accommodating grooves 14 for accommodating local protrusions of the sealing ring 12 after deformation on both sides away from the annular boss 11, and the accommodating grooves 14 are semicircular structures.

[0028] The motor end cover 13 is provided with an annular groove, the reversing groove cooperates with the reversing protrusion, and the annular boss 11 is inserted into the annular groove, which not only facilitates the installation of the motor base 10 and the motor end cover 13, but also has a good sealing function.

[0029] After the motor base 10 is abutted and fixed with the motor end cover 13, the sealing ring 12 is squeezed. After being squeezed, the sealing ring 12 automatically deforms and fills into the semicircular shape of the accommodating groove 14 without overflowing, thereby ensuring the sealing effect of the sealing ring 12 and avoiding the sealing ring 12 from being subjected to greater squeezing force and causing fatigue deformation or even breakage.

[0030] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A sealing structure for an EC motor, characterized in that: It comprises a motor end cover and a motor base, wherein one of the motor end cover and the motor base is provided with an annular boss, and the other of the motor end cover and the motor base is provided with an annular groove matched with the annular boss.

2. A sealing structure for an EC motor according to claim 1, characterized in that: Sealing grooves are arranged on both inner and outer sides of the annular boss, and sealing rings are arranged in the sealing grooves.

3. The sealing structure of an EC motor according to claim 2, characterized in that: An accommodating groove is provided in an end wall of the sealing groove on both sides of the inner and outer sides away from the annular boss.

4. The sealing structure of an EC motor according to claim 3, characterized in that: The accommodating groove is semicircular.

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