Sealing structure and motor

Abstract

The utility model discloses a sealing structure and a motor, and the sealing structure comprises a sealing member pedestal, the surface of which is provided with an annular groove, and the side wall of the groove is provided with a plurality of limiting projections; and the sealing ring is of an annular structure, the sealing ring is matched with the groove, the section size of the sealing ring is matched with the section size of the groove, and the limiting protrusion is used for preventing the sealing ring from falling off from the groove. According to the sealing structure and the motor, the annular groove is formed in the sealing piece base, the limiting protrusion is arranged on the annular groove, when the sealing ring is installed in the groove, the limiting protrusion can play a role in limiting the sealing ring, the sealing ring is prevented from being disengaged from the groove, and compared with the prior art, the sealing structure and the motor have the advantages that the sealing structure is simple in structure and convenient to use. Glue selection according to the material of the sealing ring is not needed, a dovetail groove does not need to be formed, the manufacturing complexity and cost are reduced, the installation difficulty is low, and meanwhile reliable fixing of the sealing ring can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing assembly technical field, more specifically, relate to a sealing structure, furthermore, the utility model still relates to a motor including the sealing structure. BACKGROUND

[0002] The O type ring fixing mode on the market at present mainly is that O type ring is put into O type ring groove, and realizes sealing through the compression of O type ring axial or radial, especially the axial sealing of O type ring, since the depth of O type ring groove must be less than the linear diameter of O type ring, and it is easy to drop when assembling O type ring, therefore most situations can only be coated with glue in O type ring groove, and O type ring is fixed with glue, prevents it from falling, thereby affecting assembly, although sealing can be realized ultimately, but need to adopt special glue, the glue can not react with the material of O type ring, and the amount of glue also needs control, can not coat too much glue, otherwise will influence the compression amount of O type ring, thereby reducing sealing effect.

[0003] For the above-mentioned assembly method, first need to find a suitable glue, the glue can not react with the material of O type ring, otherwise will lead to O type ring aging and failure in advance, and when replacing O type ring subsequently, need to remove the original glue, otherwise O type ring can not be fixed.

[0004] In addition, the installation of O type ring can also be realized by opening the dovetail groove, the scheme using the dovetail groove can only be made by machining, and the cost is high, and moreover, since the entire slot is less than the linear diameter of O type ring, the overall assembly is relatively troublesome.

[0005] In summary, how to reduce the assembly difficulty of O type ring is a problem to be solved by the technical personnel in the field. Utility model content

[0006] Therefore, the utility model aims at providing a sealing structure, a ring-shaped groove is arranged on the sealing element base, a plurality of limiting protrusions are arranged on the ring-shaped groove, the limiting protrusions can prevent the sealing ring from falling off when the sealing ring is installed in the ring-shaped groove, and the assembly difficulty is low.

[0007] Another purpose of the utility model is to provide a motor including the sealing structure.

[0008] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0009] A sealing structure, comprising:

[0010] A sealing element base, the surface of the sealing element base is provided with a ring-shaped groove, and a plurality of limiting protrusions are arranged on the side wall of the groove;

[0011] The sealing ring is in a ring structure, is matched with the groove, the cross-sectional dimension of the sealing ring is matched with the cross-sectional dimension of the groove, and the limiting protrusion is used for preventing the sealing ring from falling out of the groove.

[0012] Preferably, the limiting protrusion is in a cuboid structure, and a side surface of the limiting protrusion away from the groove is provided with a rounded corner.

[0013] Preferably, the groove is divided into at least three strip-shaped grooves, and at least one limiting protrusion is arranged on each strip-shaped groove.

[0014] Preferably, the limiting protrusions are uniformly distributed on both sides of the groove, and the limiting protrusions on both sides are arranged in a staggered manner.

[0015] Preferably, the length of the limiting protrusion is 1.1 to 2 times the diameter of the sealing ring.

[0016] Preferably, the width of the limiting protrusion is 0.05 to 0.1 times the diameter of the sealing ring.

[0017] Preferably, the connecting part of the limiting protrusion and the sealing base is provided with a rounded corner.

[0018] Preferably, the sealing ring is an elastic member, and the sealing base and the limiting protrusion are an integrated assembly.

[0019] Preferably, a plurality of mounting holes are arranged on the sealing base, and the sealing base is mounted on the junction box cover through the mounting holes and a mounting assembly.

[0020] A motor comprises the sealing structure.

[0021] The sealing structure comprises a sealing base and a sealing ring, the sealing base is provided with a ring-shaped groove, the ring-shaped groove is matched with the shape and size of the sealing ring, the sealing ring is directly pressed into the ring-shaped groove, the limiting protrusion arranged on the groove can prevent the sealing ring from falling out of the groove, compared with the prior art, the sealing structure does not need to select glue according to the material of the sealing ring, and does not need to open a dovetail groove, so that the manufacturing complexity and cost are reduced, the sealing ring can be reliably fixed, and the installation difficulty is low. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on the provided drawings.

[0023] Figure 1 Structure diagram of the sealing structure provided by the present application;

[0024] Figure 2 Top view of the sealing structure provided by the present application;

[0025] Figure 3 For Figure 2 Lateral enlarged view of I part in the middle.

[0026] Reference signs:

[0027] 1-seal base; 2-groove; 3-limiting protrusion; 4-seal ring; 5-round corner. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] The core of the present application is to provide a sealing structure, which has low difficulty in installing a seal ring and can ensure reliable fixation of the seal ring, and has low cost.

[0030] Another core of the present application is to provide a motor comprising the above sealing structure.

[0031] It should be noted that the directions or positional relationships indicated by "up", "down", "front", "back" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0032] The sealing structure provided by the present application comprises a seal base 1 and a seal ring 2.

[0033] The surface of the seal base 1 is provided with an annular groove 2, and a plurality of limiting protrusions 3 are arranged on the side wall of the groove 2.

[0034] The sealing ring 4 is an annular structure. The sealing ring 4 is matched with the groove 2. The cross-sectional dimensions of the sealing ring 4 are matched with the cross-sectional dimensions of the groove 2. The limiting protrusion 3 is used to prevent the sealing ring 4 from falling out of the groove 2.

[0035] For details, please refer to the appendix. Figure 1 The sealing base 1 is a plate-shaped structure with a groove 2 of a certain depth on its surface. Generally, the depth of the groove 2 should be greater than the diameter of the sealing ring 4. A limiting protrusion 3 is provided on any side of the groove 2. The limiting protrusion 3 can be evenly distributed along the groove 2. The sealing ring 4 is a ring structure with a variable shape. The sealing ring 4 can be pressed into the groove 2. The shape of the sealing ring 4 can conform to the shape of the groove 2. The multiple limiting protrusions 3 provided on the groove 2 can position the sealing ring 4 in the groove 2 in sections. The whole installation process is relatively simple. Compared with the existing technology, there is no need to open a dovetail groove, nor is it necessary to select glue according to the material of the sealing ring 4. The sealing ring 4 can be reliably fixed while the installation difficulty is low.

[0036] Based on the above embodiment, the limiting protrusion 3 has a cuboid structure, and the side surface of the limiting protrusion 3 facing away from the groove 2 is provided with a rounded corner 5.

[0037] Specifically, the limiting protrusion 3 is a cuboid; please refer to the attached document. Figure 1 The end of the limiting protrusion 3 is defined in terms of direction. The end of the limiting protrusion 3 connected to the sealing base 1 is the inner side of the limiting protrusion 3, and the other side of the limiting protrusion 3 is the outer side. A rounded corner 5 is provided on the top edge of the outer side of the limiting protrusion 3. The radius of the rounded corner 5 is generally 0.3mm. The rounded corner 5 can make the sealing ring 4 smoother during the pressing process and reduce the installation difficulty of the sealing ring 4.

[0038] Based on the above embodiment, the groove 2 is divided into at least three strip-shaped grooves, and each strip-shaped groove is provided with at least one limiting protrusion 3.

[0039] Specifically, groove 2 has a ring-shaped structure. Besides segmented grooves, circular grooves can also be used. For segmented grooves, groove 2 must be divided into at least three segments, or it can be an appendage. Figure 1 Appendix Figure 2 The four-segment structure has at least one limiting protrusion 3 on each strip-shaped groove to ensure that the sealing ring 4 can be stably fixed in the strip-shaped groove, or as shown in the attached figure. Figure 1 With appendix Figure 2 In the middle, two limiting protrusions 3 are provided on each strip-shaped groove, and for the circular groove, the limiting protrusions 3 can be evenly distributed on the groove 2, and the distance between two adjacent limiting protrusions 3 is set to be the same.

[0040] On the basis of the above-mentioned embodiments, the plurality of limiting protrusions 3 are uniformly distributed on both sides of the groove 2, and the limiting protrusions 3 on both sides are arranged in a staggered manner.

[0041] Specifically, a limiting protrusion 3 is arranged on each of the two sides of the groove 2, and the limiting protrusions 3 on the two sides are not directly connected. For the aforementioned segmented groove, one limiting protrusion 3 is arranged on each of the two sides of each segmented strip-shaped groove, and the two limiting protrusions 3 are arranged at the first end and the end of the segmented strip-shaped groove, respectively, to prevent the sealing ring 4 from falling out of the groove 2. In addition, the drawings need to be combined Figure 2 It should be noted that the connecting part of the two adjacent segmented grooves should be an arc-shaped groove to prevent the sealing ring 4 from being bent too much and to improve the service life.

[0042] On the basis of the above-mentioned embodiments, the length of the limiting protrusion 3 is 1.1 to 2 times the diameter of the sealing ring 4.

[0043] Specifically, please refer to the drawings Figure 2 and the drawings Figure 3 , the length of the limiting protrusion 3, that is, the length of the A section in the drawings Figure 3 , is 1.1 to 2 times the diameter of the sealing ring 4, so as to ensure that the limiting protrusion 3 has sufficient pressing length on the sealing ring 4 and prevents the sealing ring 4 from falling out of the groove 2.

[0044] On the basis of the above-mentioned embodiments, the height of the limiting protrusion 3 is 0.05 to 0.1 times the diameter of the sealing ring 4.

[0045] Specifically, please refer to the drawings Figure 2 and the drawings Figure 3 , the limiting of the sealing ring 4 by the limiting protrusion 3 is achieved by the width of the limiting protrusion 3, that is, the difference between the width of the groove 2 and the length of the B section in the drawings Figure 3 , and the width of the limiting protrusion 3 is 0.05 to 0.1 times the diameter of the sealing ring 4, so that the operator can smoothly press the sealing ring 4 in the groove 2, but still ensure the limiting effect of the limiting protrusion 3 on the sealing ring 4.

[0046] On the basis of the above-mentioned embodiments, a round corner 5 is arranged at the connecting part of the limiting protrusion 3 and the sealing member base 1.

[0047] Specifically, please refer to the drawings Figure 2 and the drawings Figure 3 , the connecting part of the limiting protrusion 3 and the sealing member base 1 on both sides, that is, the connecting part of the limiting protrusion 3 and the sealing member base 1 in the drawings Figure 3The left and right sides of the limiting protrusion 3 are provided with a round corner 5, and the round corner 5 on the two sides of the limiting protrusion 3 and the round corner 5 at the top of the outer side of the limiting protrusion 3 are smoothly connected, so that when the sealing ring 4 is installed, whether it is pressed from the left side or the right side of the limiting protrusion 3, the sealing ring 4 can be smoothly connected to the round corner 5 at the top of the outer side of the limiting protrusion 3, and the entire installation process is smoother and the installation difficulty is lower.

[0048] In some embodiments, the sealing ring 4 is an elastic member, and the sealing member base 1 and the limiting protrusion 3 are an integrated assembly.

[0049] Specifically, the sealing ring 4 is generally made of NBR (Nitrile Butadiene Rubber, also known as butyl rubber), silicone rubber or fluororubber, and has a certain elasticity. During the installation of the sealing ring 4, the sealing ring 4 is pressed into the groove 2 by a manual or pressing assembly. Since the width of the groove 2 is generally the same as the diameter of the sealing ring 4, or the width of the groove 2 is 1-2 mm larger than the diameter of the sealing ring 4, the sealing ring 4 will deform to a certain extent when it is pressed. After the sealing ring 4 passes through the limiting protrusion 3, it can recover to its original shape by its own elasticity, and it is limited and fixed by the limiting protrusion 3. For the limiting protrusion 3 and the sealing member base 1, they are generally an integrated assembly, and the limiting protrusion 3 is chamfered by polishing to facilitate mass production.

[0050] On the basis of the above-mentioned embodiments, a plurality of mounting holes are arranged on the sealing member base 1, and the sealing member base 1 is mounted on the junction box cover through the mounting holes and the mounting assembly.

[0051] Specifically, please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 A plurality of mounting holes are arranged on the edge of the sealing member base 1, and the sealing member base 1 can be directly installed on the junction box cover through the mounting assembly. When the junction box cover is provided with threaded holes, the mounting assembly can directly use screws. When the junction box cover is provided with through holes, the mounting assembly can only be completed by using a matched screw and nut.

[0052] In addition to the above-mentioned sealing structure, the utility model also provides a motor comprising the sealing structure disclosed in the above-mentioned embodiments. The structures of other parts of the motor please refer to the prior art, and will not be described here.

[0053] In the specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0054] The sealing structure and motor provided by the utility model are described in detail. The principle and implementation mode of the utility model are described by applying specific examples. The description of the above examples is only used for helping to understand the method and core idea of the utility model. It should be pointed out that the ordinary skilled in the art can make some improvements and modifications to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A seal structure, characterized by, The utility model relates to a sealing structure of sealing ring and sealing base, including: Sealing base (1) is provided with annular recess (2) on the surface, and a plurality of limiting protrusions (3) are arranged on the side wall of recess (2); Sealing ring (4) is annular structure, sealing ring (4) is matched with recess (2), the cross section size of sealing ring (4) is matched with the cross section size of recess (2), and limiting protrusion (3) is used to prevent sealing ring (4) from falling off from recess (2).

2. The seal structure of claim 1, wherein Limiting protrusion (3) is cuboid structure, and the side surface of limiting protrusion (3) away from recess (2) is provided with round corner (5).

3. The seal structure of claim 2, wherein Recess (2) is divided into at least three strip-shaped recesses, and at least one limiting protrusion (3) is arranged on each strip-shaped recess.

4. The seal structure of claim 3, wherein A plurality of limiting protrusions (3) are evenly distributed on both sides of recess (2), and the limiting protrusions (3) on both sides are arranged in staggered mode.

5. The seal structure of claim 4, wherein The length of limiting protrusion (3) is 1.1 times to 2 times of the diameter of sealing ring (4).

6. The seal structure of claim 5, wherein The width of limiting protrusion (3) is 0.05 times to 0.1 times of the diameter of sealing ring (4).

7. The sealed structure of claim 1, wherein Round corner (5) is arranged at the connecting part of limiting protrusion (3) and sealing base (1).

8. The sealed structure of claim 1, wherein, Sealing ring (4) is elastic member, and sealing base (1) and limiting protrusion (3) are integrated assembly.

9. The seal structure according to any one of claims 1 to 8, characterized in that, A plurality of mounting holes are arranged on sealing base (1), and sealing base (1) is mounted on junction box cover through mounting hole and mounting assembly.

10. An electric machine comprising a sealing structure, characterized in that The sealing structure is the sealing structure in any one of claims 1 to 9.

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