Electronic vacuum pump motor end cover and motor

Abstract

The utility model provides an electronic vacuum pump motor end cover and a motor, and relates to the motor end cover technology field, the electronic vacuum pump motor end cover comprises an end cover main body, a sealing ring and an external terminal protection shell, the end cover main body is provided with a sealing ring installation groove, the end cover main body is also provided with an installation position used for installing the external terminal protection shell, and the inner wall position of the installation position is provided with a groove. And the external terminal protection shell is provided with a sealing bulge and a connecting groove for installing a sealing ring. By arranging the sealing ring at the motor end cover, the motor end cover and the motor shell are sealed by extruding the sealing ring, compared with the traditional glue sealing, the sealing reliability is better, the waterproof and dustproof effects are improved, the service life of the motor is ensured, and the sealing effect is further improved by arranging the sealing ring at the external terminal protection shell.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor end cover technical field especially electronic vacuum pump motor end cover and motor. BACKGROUND

[0002] Traditional motor end cover is generally sealed through glue, and the sealing structure is poor, the sealing effect is poor, dust and water are easy to enter, the service life of the motor is reduced, the failure rate is increased, and air leakage is easy to occur at the position of the external terminal, so that the motor is difficult to realize stable and reliable working effect, and the present application is proposed for the above defects. SUMMARY

[0003] The utility model discloses a kind of electronic vacuum pump motor end cover and motor, solve the problem of the service life of motor being reduced, high failure rate caused by the sealing performance of motor end cover being poor at present stage.

[0004] To solve the above problems, the utility model provides a kind of electronic vacuum pump motor end cover and motor, including end cover main body, sealing ring and external terminal protection shell, the end cover main body is provided with sealing ring installation groove, the sealing ring is installed in the sealing ring installation groove, and the height of sealing ring is higher than the depth of sealing ring, when end cover is assembled with motor shell, sealing is realized by extrusion and makes sealing ring deformation, the end cover main body is also provided with the installation site for installing external terminal protection shell, and the installation site is a gap set on end cover main body, recess is provided at the inner wall position of the installation site, the external terminal protection shell can be embedded in the installation site, sealing protrusion and the link groove for the installation of sealing ring are provided on the external terminal protection shell, the sealing protrusion is of elastic material, for embedding into the recess, realize the sealing at external terminal.

[0005] According to an embodiment of the utility model, the end cover main body is also provided with isolation groove, at least part of the isolation groove is set at the inner side position of sealing ring installation groove, because motor end cover is installed with inductance, carbon brush and other structures, temperature is higher when working for a long time, the setting of isolation groove can reduce the speed of temperature conduction to sealing ring installation groove, guarantee the service life of sealing ring.

[0006] According to an embodiment of the utility model, the wall thickness of the side of the isolation groove close to sealing ring installation groove is less than the wall thickness of the other side of the isolation groove, guarantee the strength of end cover main body, while as far as possible expand the width of isolation groove.

[0007] According to an embodiment of the utility model, the isolation groove is set around the inner side and the bottom side of sealing ring installation groove, further reduce temperature conduction rate.

[0008] According to an embodiment of the utility model, reinforcing support structure is provided in the isolation groove, guarantee strength.

[0009] According to an embodiment of the utility model, the outer circular surface of the end cover body is provided with an emptying groove, and the motor shell is correspondingly provided with a convex edge which is located in the emptying groove after assembly, thereby further improving the sealing effect.

[0010] According to an embodiment of the utility model, the sealing protrusions are provided in several groups to ensure the sealing effect.

[0011] According to an embodiment of the utility model, the sealing protrusions are made of rubber material.

[0012] Optionally, the isolation groove is annular or multi-arc.

[0013] A motor comprises the electronic vacuum pump motor end cover.

[0014] The utility model discloses a beneficial effect is, through setting up the sealing ring at the motor end cover, makes the motor end cover and the motor shell realize sealing through extruding the sealing ring, compared with the traditional glue seal, and the sealing reliability is better, and the sealing effect is good, improves waterproof dustproof effect, guarantees the service life of motor, and also sets up the sealing at the external terminal protection shell, further improves the sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further illustrated below in combination with the drawings and examples.

[0016] Figure 1 It is the electronic vacuum pump motor end cover and the overall structure schematic diagram of motor;

[0017] Figure 2 It is the plane view of end cover body;

[0018] Figure 3 It is the structure schematic diagram of sealing ring and external terminal protection shell;

[0019] Figure 4 It is the partial section view of end cover body in example 2. DETAILED DESCRIPTION

[0020] The following description is only used to disclose the utility model so that the person skilled in the art can implement the utility model. The examples in the following description are only as examples, and other obvious modifications can be thought by the person skilled in the art. The basic principles of the utility model defined in the following description can be applied to other implementation, modification, improvement, equivalent and other schemes without departing from the spirit and scope of the utility model.

[0021] Example 1:

[0022] An electronic vacuum pump motor end cover and motor, like Figure 1, including end cap body 1, sealing ring 2 and external terminal protection shell 4, the end cap body 1 is installed with inductance, capacitor, carbon brush and other components.

[0023] As Figure 2 , the end cap body 1 is provided with a sealing ring mounting groove 12, the sealing ring 2 is mounted in the sealing ring mounting groove 12, and the height of the sealing ring 2 is higher than the depth of the sealing ring 2, when the end cap is assembled with the motor shell, the sealing ring 2 is deformed by extrusion to realize sealing.

[0024] The end cap body 1 is also provided with a mounting position for mounting the external terminal protection shell 4, the mounting position is a notch provided on the end cap body 1, the shape of the notch matches the shape of the cooperation position of the external terminal protection shell 4, and a groove is provided at the inner wall position of the mounting position, the external terminal protection shell 4 can be embedded in the mounting position, such as Figure 3 , the external terminal protection shell 4 is provided with a sealing protrusion 42 and a connecting groove 41 for mounting the sealing ring 2, the connecting groove 41 is connected with the sealing ring mounting groove 12 to form a complete ring, the sealing protrusion 42 is made of elastic material and is embedded into the groove to realize sealing at the external terminal.

[0025] Preferably, the sealing protrusion 42 is provided with several groups to ensure the sealing effect.

[0026] Optionally, the sealing protrusion 42 is made of rubber material.

[0027] The outer circular surface of the end cap body 1 is provided with an empty slot 15, and the motor shell can be correspondingly provided with a convex edge, which is located in the empty slot 15 after assembly, further improving the sealing effect.

[0028] Embodiment 2:

[0029] Based on embodiment 1, as Figure 4 , the end cap body 1 is also provided with an isolation groove 11, at least part of the isolation groove 11 is arranged at the inner side of the sealing ring mounting groove 12, because the motor end cap is provided with inductance, carbon brush and other structures, the temperature is high after long time work, the setting of the isolation groove 11 can reduce the speed of temperature conduction to the sealing ring mounting groove 12, and ensure the service life of the sealing ring 2.

[0030] Further, the thickness of the wall body near the sealing ring mounting groove 12 side of the isolation groove 11 is less than the thickness of the wall body on the other side of the isolation groove 11, that is Figure 4 The thickness of the first wall 13 is greater than the thickness of the second wall 14, to ensure the strength of the end cap body 1, and to expand the width of the isolation groove 11 as much as possible.

[0031] Further, the isolation groove 11 is arranged around the inner side and the bottom side of the sealing ring mounting groove 12, to further reduce the temperature conduction rate.

[0032] Further, the isolation groove 11 is provided with a reinforcing support structure 16, such as a reinforcing rib or a reinforcing column, to ensure strength.

[0033] Optionally, the isolation groove 11 is annular or multi-arc-shaped, preferably annular.

[0034] Embodiment 3:

[0035] On the basis of Embodiment 2, the edge protrusion position of the end cover body 1, i.e. the region provided with the isolation groove 11, can be made of plastic material, facilitating molding.

[0036] A motor comprising the electronic vacuum pump motor end cover in any of the above embodiments.

[0037] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only as examples and do not limit the utility model. The purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been demonstrated and explained in the embodiments, and the implementation of the utility model can be any deformation and modification without departing from the principle.

Claims

1. An electronic vacuum pump motor end shield characterized by: The end cover body (1) is provided with a sealing ring installation groove (12), the sealing ring (2) is installed in the sealing ring installation groove (12), and the end cover body (1) is further provided with an installation position for installing the external terminal protection shell (4), and the installation position is provided with a groove; the external terminal protection shell (4) is provided with a sealing protrusion (42) and a connecting groove (41) for installing the sealing ring (2), the sealing protrusion (42) is made of elastic material and is used for being embedded into the groove.

2. The electronic vacuum pump motor end bell of claim 1, wherein: The end cover body (1) is further provided with an isolation groove (11), and at least part of the isolation groove (11) is arranged at an inner side position of the sealing ring installation groove (12).

3. The electronic vacuum pump motor end bell of claim 2, wherein: The wall thickness of the isolation groove (11) near one side of the sealing ring installation groove (12) is smaller than the wall thickness of the other side of the isolation groove (11).

4. The electronic vacuum pump motor end bell according to claim 2 or 3, characterized in that: The isolation groove (11) is arranged around the inner side and the bottom side of the sealing ring installation groove (12).

5. The electronic vacuum pump motor end bell of claim 4, wherein: The isolation groove (11) is provided with a reinforcing support structure (16).

6. The electronic vacuum pump motor end bell according to any one of claims 1-3, characterized in that: The outer circular surface of the end cover body (1) is provided with a clearance groove (15).

7. The electronic vacuum pump motor end bell according to any one of claims 1-3, characterized in that: The sealing protrusion (42) is provided with a plurality of groups.

8. The electronic vacuum pump motor end bell of claim 7, wherein: The sealing protrusion (42) is made of rubber material.

9. The electronic vacuum pump motor end bell of claim 2 or 3, characterized in that: The isolation groove (11) is arranged in an annular shape or a plurality of arc shapes.

10. An electric machine characterized by: The electronic vacuum pump motor end cover comprises the end cover body, the sealing ring and the external terminal protection shell.

Images