Sealing structure and motor

Abstract

The utility model provides a sealing structure and a motor. The sealing structure comprises a cylindrical housing, an end cover arranged on the housing, and an annular sealing ring embedded in the end cover. The edge of the end cover is provided with a first concave part arranged in the circumferential direction of the end cover, and the annular sealing ring is embedded in the first concave part. A second concave part corresponding to the first concave part is arranged on the inner wall of the shell, and an inclined guide-in surface connected with the second concave part is arranged above the second concave part; and when the end cover is placed on the shell, the annular sealing ring slides into and is clamped in the second inner concave part along the inclined guide-in surface, so that the locking of the end cover and the shell is realized. The sealing structure provided by the utility model can solve the problem that the end cover and the shell are easy to separate, thereby facilitating the improvement of the safety of the motor in the transportation process.

Description

Technical Field

[0001] The utility model relates to the technical field of motor components, in particular to a sealing structure. The utility model also relates to a motor provided with the above sealing structure. Background Technique

[0002] As the core control component of an electric device, the motor becomes more and more important. In particular, the reliability of the motor plays a decisive role in the effective operation of the electric device. Therefore, in order to prevent dust and water droplets from entering the motor interior and affecting the motor performance, the sealing structure of the motor becomes particularly important.

[0003] In the prior art, most of the sealing structures are to open a U-shaped groove on the end cover, and after placing the sealing ring in the U-shaped groove, it is matched with the plane or cylindrical surface of the inner wall of the housing to achieve the sealing purpose. However, since this structure cannot lock the housing and the end cover, it may cause the end cover and the housing to become separated during transportation, resulting in damage to the parts inside the motor, and thus being unfavorable for improving the transportation safety of the motor. Summary of the Utility Model

[0004] In view of this, the utility model aims to propose a sealing structure to facilitate improving the transportation safety of the motor.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A sealing structure includes a cylindrical housing, an end cover provided on the housing, and an annular sealing ring embedded in the end cover;

[0007] A first concave portion arranged along the circumferential direction of the end cover is provided at the edge of the end cover, and the annular sealing ring is embedded in the first concave portion; a second concave portion corresponding to the first concave portion is provided on the inner wall of the housing, and an inclined guiding surface connected thereto is provided above the second concave portion;

[0008] When the end cover is placed on the housing, the annular sealing ring slides along the inclined guiding surface and is clamped in the second concave portion to realize the locking of the end cover and the housing.

[0009] Further, the first concave portion includes a first sealing groove arranged successively from top to bottom, and a first accommodating groove connected to the first sealing groove;

[0010] The first sealing groove includes a first limiting surface and a first sealing surface connected to the first limiting surface, and the first limiting surface is horizontally arranged.

[0011] Further, the second concave portion includes a second sealing groove arranged successively from top to bottom, and a second accommodating groove connected to the second sealing groove;

[0012] The second sealing groove includes a second limiting surface extending along a preset direction and a second sealing surface connected to the second limiting surface, and the second limiting surface is used for clamping the annular sealing ring.

[0013] Further, the lower end of the first limiting surface approaches the housing, making the first limiting surface inclined; and / or, the lower end of the second limiting surface approaches the end plate, making the second limiting surface inclined.

[0014] Further, the first limiting surface, the first sealing surface, the second limiting surface, and the second sealing surface enclose a sealing space.

[0015] Further, the cross-section of the sealing space is in the shape of an inverted frustum.

[0016] Further, the first receiving groove and the second receiving groove enclose a receiving space, and the receiving space is used for receiving the part of the annular sealing ring that overflows after being extruded by the sealing space.

[0017] Further, the annular sealing ring is made of waterproof silicone material.

[0018] Compared with the prior art, the present utility model has the following advantages:

[0019] For the sealing structure of the present utility model, by providing the first concave portion on the end cover, the installation of the annular sealing ring can be facilitated, and through the provision of the second concave portion and the inclined guiding surface on the housing, the annular sealing strip on the end cover can be easily slid into and clamped in the second concave portion, which can solve the problem that the housing and the end cover are prone to detachment, thereby facilitating the improvement of the safety of the motor during transportation.

[0020] Secondly, by arranging the first limiting surface horizontally, the annular sealing ring can be blocked to prevent it from slipping off when the end cover is connected to the housing. By arranging the second limiting surface to extend along the prevention direction, the annular sealing ring can be easily clamped, thereby realizing the locking between the end cover and the housing. By arranging the first sealing surface inclined, the downward sliding of the annular sealing ring can be avoided, which is beneficial to ensuring the installation of the annular sealing ring. At the same time, by making the second sealing surface inclined, the annular sealing ring can be abutted against the second limiting surface along the second sealing surface, which is beneficial to further realizing the locking between the end cover and the housing.

[0021] Furthermore, the provision of the sealing space can seal the gap between the end cover and the housing, thereby preventing external factors from affecting the inside of the motor. By setting the cross-section of the sealing space as an inverted frustum, the structure is simple and easy to design and implement, and it can play a guiding role for the overflow part of the annular sealing ring when the end cover and the housing extrude the annular sealing ring.

[0022] Moreover, the provision of the accommodation space facilitates the accommodation of the part of the annular sealing ring that is extruded out of the sealing space, thereby avoiding the problem that the end cover and the housing cannot be sealed and installed due to the existence of the overflow part of the annular sealing ring. The waterproof silica gel material has good elasticity and waterproofness, which can further enhance the sealing effect.

[0023] The present utility model also relates to a motor, in which the above-mentioned sealing structure is provided.

[0024] The motor in the present utility model has the same beneficial effects as the above-mentioned sealing structure compared with the prior art, so it will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0026] Figure 1 is a schematic diagram of the overall structure of the sealing structure according to an embodiment of the present utility model;

[0027] Figure 2 is Figure 1 a sectional view taken along the A-A direction of the structure shown;

[0028] Figure 3 is Figure 2 an enlarged view of the structure shown at B in ;

[0029] Figure 4 is a schematic diagram of the structure of the end cover according to an embodiment of the present utility model;

[0030] Figure 5 is Figure 4 an enlarged view of the structure shown at C in ;

[0031] Figure 6 is a schematic diagram of the structure of the housing according to an embodiment of the present utility model;

[0032] Figure 7 is Figure 6 an enlarged view of the structure shown at D in ;

[0033] Description of the reference numerals:

[0034] 1. End cover; 11. First concave portion; 111. First sealing groove; 1111. First limiting surface; 1112. First sealing surface; 112. First accommodation groove;

[0035] 2. Housing; 21. Second concave portion; 211. Second sealing groove; 2111. Second limiting surface; 2112. Second sealing surface; 212. Second receiving groove; 22. Inclined guiding surface;

[0036] 3. Annular sealing ring;

[0037] 41. Sealing space; 42. Receiving space. Detailed implementation manner

[0038] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0039] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are 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 should not be construed as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connecting member" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0041] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0042] Embodiment 1

[0043] This embodiment relates to a sealing structure, which can solve the problem that the end cover and the housing are prone to separation, thereby facilitating the improvement of the safety of the motor during transportation. In terms of the overall structure, as Figure 1 and Figure 7 shown, the sealing structure of this embodiment includes a cylindrical housing 2, an end cover 1 provided on the housing 2, and an annular sealing ring 3 embedded in the end cover 1.

[0044] Among them, a first concave portion 11 arranged along the circumferential direction of the end cover 1 is provided at the edge of the end cover 1, and the annular sealing ring 3 is embedded in the first concave portion 11. A second concave portion 21 corresponding to the first concave portion 11 is provided on the inner wall of the housing 2, and an inclined guiding surface 22 connected thereto is provided above the second concave portion 21.

[0045] Moreover, when the end cover 1 is placed on the housing 2, the annular sealing ring 3 slides along the inclined guiding surface 22 and is clamped in the second concave portion 21, realizing the locking of the end cover 1 and the housing 2.

[0046] At this time, with the above settings, by providing the first concave portion 11 on the end cover 1, the installation of the annular sealing ring 3 can be facilitated, and through the settings of the second concave portion 21 and the inclined guiding surface 22 on the housing 2, the annular sealing strip on the end cover 1 can be facilitated to slide into and be clamped in the second concave portion 21, which can solve the problem that the housing 2 and the end cover 1 are prone to detachment, thereby being beneficial to improving the safety of the motor during transportation.

[0047] During specific implementation, the annular sealing ring 3 is embedded in the first concave portion 11, and grease is applied to the outer circumference of the annular sealing ring 3. Subsequently, the end cover 1 and the housing 2 are assembled by external pressing force. At this time, the annular sealing ring 3 slides along the inclined guiding surface 22 and is clamped in the second concave portion 21, realizing the locking of the end cover 1 and the housing 2.

[0048] Based on the above overall introduction, in this embodiment, as a preferred implementation form, as Figure 3 、 Figure 4 and Figure 5 shown, the first concave portion 11 includes a first sealing groove 111 arranged successively from top to bottom, and a first accommodating groove 112 connected to the first sealing groove 111. Moreover, the first sealing groove 111 includes a first limiting surface 1111 and a first sealing surface 1112 connected to the first limiting surface 1111, and the first limiting surface 1111 is arranged horizontally.

[0049] It can be understood that the first sealing groove 111 is composed of the first limiting surface 1111 and the first sealing surface 1112. By arranging the first limiting surface 1111 horizontally, the annular sealing ring 3 can be blocked to prevent it from slipping off when the end cover 1 is connected to the housing 2.

[0050] Meanwhile, in this embodiment, as a preferred implementation form, as Figure 3 、 Figure 6 and Figure 7As shown, the second concave portion 21 includes a second sealing groove 211 arranged successively from top to bottom, and a second accommodating groove 212 connected to the second sealing groove 211. The second sealing groove 211 includes a second limiting surface 2111 extending in a preset direction, and a second sealing surface 2112 connected to the second limiting surface 2111. The second limiting surface 2111 is used to hold the annular sealing ring 3.

[0051] The advantage of this setting is that by arranging the second limiting surface 2111 to extend in the preventive direction, it is convenient for the annular sealing ring 3 to be held, so as to realize the locking between the end cover 1 and the housing 2. Here, it should be noted that the preset direction in this embodiment is Figure 3 as shown in (i.e., the direction from the housing 2 to the end cover 1).

[0052] In addition, in this embodiment, as a preferred implementation form, referring to Figure 3 as shown in, the lower end of the first sealing surface 1112 approaches the housing 2, making the first sealing surface 1112 inclined. By arranging the first sealing surface 1112 to be inclined, it can prevent the annular sealing ring 3 from sliding down, thus facilitating the installation of the annular sealing ring 3.

[0053] At the same time, the lower end of the second sealing surface 2112 approaches the end cover 1, making the second sealing surface 2112 inclined. Thus, the annular sealing ring 3 can be abutted against the second limiting surface 2111 along the second sealing surface 2112, which is conducive to further realizing the locking between the end cover 1 and the housing 2.

[0054] Specifically, in this embodiment, as a preferred implementation form, as shown in Figure 2 and Figure 3 as shown in, the first limiting surface 1111, the first sealing surface 1112, the second limiting surface 2111, and the second sealing surface 2112 enclose a sealing space 41. With this setting, the gap between the end cover 1 and the housing 2 can be sealed, thus preventing external factors from affecting the inside of the motor.

[0055] Continuing to refer to Figure 3 as shown in, as a preferred implementation form, the cross-section of the sealing space 41 in this embodiment is in the shape of an inverted frustum. Here, setting the cross-section of the sealing space 41 to be in the shape of an inverted frustum has a simple structure and is easy to design and implement. It can play a guiding role in the overflow part of the annular sealing ring 3 when the end cover 1 and the housing 2 squeeze the annular sealing ring 3.

[0056] Moreover, considering the extrusion deformation of the annular sealing ring 3, in this embodiment, as a preferred implementation form, as shown in Figure 3As shown in the figure, the first accommodation groove 112 and the second accommodation groove 212 enclose to form an accommodation space 42, and the accommodation space 42 is used to accommodate the part of the annular sealing ring 3 that overflows after being extruded by the sealed space 41.

[0057] With this setting, it is convenient to accommodate the part of the annular sealing ring 3 that is extruded and overflows from the sealed space 41, thus avoiding the problem that the end cover 1 and the housing 2 cannot be sealed and installed due to the existence of the overflow part of the annular sealing ring 3.

[0058] During specific implementation, when the end cover 1 and the housing 2 are assembled, the annular sealing ring 3 will be deformed under the extrusion of the sealed space 41. At this time, by enclosing the first accommodation groove 112 and the second accommodation groove 212 to form the accommodation space 42, the annular sealing ring 3 can overflow into the accommodation space 42.

[0059] In addition, in this embodiment, as a preferred implementation form, the annular sealing ring 3 is made of waterproof silica gel material. The waterproof silica gel material has good elasticity and waterproof performance, which can further enhance the sealing effect.

[0060] The sealing structure in this embodiment can form a sealed space 41 through the settings of the first limiting surface 1111, the first sealing surface 1112, the second limiting surface 2111 and the second sealing surface 2112 to seal the space between the end cover 1 and the housing 2. And through the settings of the first accommodation groove 112 and the second accommodation groove 212, the two can enclose to form an accommodation space, thereby being able to lock the end cover 1 and the housing 2, avoiding the disconnection of the end cover 1 and the housing 2 during transportation, and being beneficial to improving the transportation safety of the motor.

[0061] Embodiment 2

[0062] This embodiment relates to a motor, and the sealing structure in Embodiment 1 is provided in the motor.

[0063] In the motor of this embodiment, through the setting of the sealing structure in Embodiment 1, the housing 2 and the end cover 1 can be locked during the transportation of the motor, avoiding the separation of the housing 2 and the end cover 1, thereby improving the safety of the motor during transportation.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealing structure, characterized in that: It includes a cylindrical housing (2), an end cover (1) provided on the housing (2), and an annular sealing ring (3) embedded in the end cover (1); A first concave portion (11) arranged along the circumferential direction of the end cover (1) is provided at the edge of the end cover (1), and the annular sealing ring (3) is embedded in the first concave portion (11); A second concave portion (21) corresponding to the first concave portion (11) is provided on the inner wall of the housing (2), and an inclined guiding surface (22) connected thereto is provided above the second concave portion (21); When the end cover (1) is placed on the housing (2), the annular sealing ring (3) slides along the inclined guiding surface (22) and is clamped in the second concave portion (21), realizing the locking of the end cover (1) and the housing (2).

2. The sealing structure according to claim 1, characterized in that: The first concave portion (11) includes a first sealing groove (111) arranged in sequence from top to bottom, and a first accommodating groove (112) connected to the first sealing groove (111); The first sealing groove (111) includes a first limiting surface (1111), and a first sealing surface (1112) connected to the first limiting surface (1111), and the first limiting surface (1111) is horizontally arranged.

3. The sealing structure according to claim 2, characterized in that: The second concave portion (21) includes a second sealing groove (211) arranged in sequence from top to bottom, and a second accommodating groove (212) connected to the second sealing groove (211); The second sealing groove (211) includes a second limiting surface (2111) extending along a preset direction, and a second sealing surface (2112) connected to the second limiting surface (2111), and the second limiting surface (2111) is used for clamping the annular sealing ring (3).

4. The sealing structure according to claim 3, characterized in that: The lower end of the first sealing surface (1112) approaches the housing (2), making the first sealing surface (1112) inclined; and / or, The lower end of the second sealing surface (2112) approaches the end cover (1), making the second sealing surface (2112) inclined.

5. The sealing structure according to claim 3, characterized in that: The first limiting surface (1111), the first sealing surface (1112), the second limiting surface (2111), and the second sealing surface (2112) enclose a sealing space.

6. The sealing structure according to claim 5, characterized in that: The cross-section of the sealing space (41) is in the shape of an inverted frustum of a cone.

7. The sealing structure according to claim 6, characterized in that: The first accommodating groove (112) and the second accommodating groove (212) enclose an accommodating space (42), and the accommodating space (42) is used for accommodating the part of the annular sealing ring (3) that overflows after being extruded by the sealing space (41).

8. The sealing structure according to any one of claims 1-7, characterized in that: The annular sealing ring (3) is made of waterproof silica gel material.

9. A motor, characterized in that: The motor is provided with the sealing structure according to any one of claims 1-8.

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