CN210461826U - Waterproof breather valve assembly mechanism of motor - Google Patents
Waterproof breather valve assembly mechanism of motor Download PDFInfo
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- CN210461826U CN210461826U CN201921188950.6U CN201921188950U CN210461826U CN 210461826 U CN210461826 U CN 210461826U CN 201921188950 U CN201921188950 U CN 201921188950U CN 210461826 U CN210461826 U CN 210461826U
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Abstract
The utility model discloses a motor waterproof breather valve assembly mechanism, which comprises a valve body arranged outside a motor shell, wherein an accommodating cavity is arranged in the valve body, an air inlet and outlet channel is arranged on the valve body and is used for communicating the accommodating cavity with the outside, two breather valves which are oppositely arranged are arranged in the accommodating cavity, each breather valve comprises a valve seat, a spring seat, a pressure spring and a valve core, a single-opening inner cavity is arranged in the valve seat, and the end surface wall is provided with a first air vent extending to the outer end surface, a single-opening inner cavity is arranged in the spring seat, and the end surface wall is provided with a second air vent extending to the outer end surface, the valve core is arranged in the inner cavity of the spring seat, the pressure spring is arranged between the end face wall of the spring seat and the valve core, the opening of the spring seat is in interference press-mounting in the inner cavity of the valve seat towards the first vent hole, and the valve core forms sealing for the first vent hole under the action of the pressure spring. The assembly mechanism is simple in structure and ingenious in principle, and can be simply installed outside the motor shell to achieve the function of automatically adjusting the air pressure of the inner cavity.
Description
Technical Field
The utility model relates to a breather valve structure especially relates to a waterproof breather valve assembly mechanism of motor.
Background
The inner cavity of the motor is generally a closed or high-tightness structure, and the tightness requirement is higher particularly under the severe environment working condition. However, the motor generates heat in a continuous working state, the inner cavity expands in a sealed state, the internal pressure rises to cause the body to break, and even the motor burns out due to high-temperature heat generation in an extreme state. In order to avoid the above situation, it is necessary to design a ventilation structure for the motor so as to adjust the pressure of the inner cavity of the motor, but it is necessary to ensure the waterproof sealing performance of the motor.
The design that sets up electric control valve on the motor exists among the prior art, monitors temperature, pressure isoparametric through the cooperation sensor, in case the detected value is unusual, control valve opens promptly, reaches the purpose of pressure release, and when the detected value was normal, the valve that controls resets and closes again. The structure system is complex, has high requirement on the sensitivity of the sensor, high failure rate, poor water immersion prevention capability, high degree of modification of the motor structure and insufficient adaptability.
SUMMERY OF THE UTILITY MODEL
Based on it is above, the utility model provides a waterproof breather valve assembly mechanism of motor, the convenient integration reaches the purpose that automatically regulated motor inner chamber pressure effectively prevented soaking simultaneously on the motor.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a waterproof breather valve assembly mechanism of motor, it is including installing the valve body outside the motor casing, seted up the appearance chamber in the valve body, be provided with business turn over gas passage on the valve body, business turn over gas passage will hold chamber and external intercommunication, be provided with the breather valve of two opposite installations in the appearance chamber, the breather valve includes the disk seat, the spring holder, pressure spring and case, set up single-opening inner chamber in the disk seat, and set up the first bleeder vent that extends to outer terminal surface on its terminal surface wall, set up single-opening inner chamber in the spring holder, and set up the second bleeder vent that extends to outer terminal surface on its terminal surface wall, the case sets up in the inner chamber of spring holder, pressure spring sets up between the terminal surface wall and the case of spring holder, the spring holder opening is in the inner chamber of disk seat towards first bleeder vent ground interference pressure equipment.
In particular, a first sealing ring is arranged between the valve core and the end face wall of the valve seat.
Particularly, the one end of two breather valves all is located and holds the chamber, and the other end all stretches out the face of valve body and motor casing laminating, corresponds the intercommunicating pore that intercommunication motor inner chamber was seted up to the extension on the motor casing, and is equipped with the second sealing washer between extension and the intercommunicating pore.
Particularly, a limiting step for limiting the stroke of the valve core is arranged in the inner cavity of the spring seat.
Particularly, the valve core is a sphere or a cone, and the diameter of the sphere and the maximum outer diameter of the cone are larger than the aperture of the first air vent.
In particular, the valve body is provided with a connecting bolt mounted with the motor housing.
Particularly, the surface of the connecting bolt, which extends out of the valve body and is attached to the motor shell, is provided with a third sealing ring at the extending end, and a fourth sealing ring is assembled between the bolt head and the valve body.
In particular, the valve body is mounted to the lowermost portion of the motor housing.
In particular, the valve body is provided with one or more, each valve body being mounted at a different position on the motor housing.
To sum up, the beneficial effects of the utility model are that, compared with the prior art, the waterproof breather valve assembly mechanism of motor simple structure, the principle is ingenious, adopts pure mechanical structure to add the pressure control principle, need not extra power, need not to change the original structure of motor, simply installs and can realize the function of automatically regulated inner chamber atmospheric pressure outside the motor casing, in addition, this valve body structure prevents soaking the ability reinforce, and even motor inner chamber also can cause automatic naked light that goes out after the inner chamber oxygen deficiency in the short time on fire under encapsulated situation, realizes waterproof, fire prevention function, realizes motor functionality breakthrough.
Drawings
Fig. 1 is a schematic structural diagram of a waterproof breather valve assembly mechanism of a motor according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
fig. 3 is an installation schematic diagram of a waterproof breather valve assembly mechanism of a motor according to an embodiment of the present invention;
fig. 4 is a schematic sectional view of a waterproof breather valve assembly mechanism installed on a motor housing according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 4, the present embodiment provides a waterproof breather valve assembly mechanism for a motor, which includes a valve body 1 installed outside a motor housing 17, a cavity 2 is opened in the valve body 1, an air inlet/outlet channel 3 is provided on the valve body 1, the cavity 2 is communicated with the outside through the air inlet/outlet channel 3, and two breather valves 4 installed in opposite directions are provided in the cavity 2, so as to realize the function of automatically adjusting pressure by breathing one breather valve and breathing by another breather valve.
In particular, a first sealing ring 11 is arranged between the valve core 8 and the end face wall of the valve seat 5, so that the sealing performance of the valve core 8 is improved.
The one end of two breather valves 4 all is arranged in holding chamber 2, and the other end all stretches out the face of valve body 1 and the laminating of motor casing 17, corresponds the intercommunicating pore 18 that the intercommunication motor inner chamber was seted up to the extension on the motor casing 17, and is equipped with second sealing washer 12 between extension and the intercommunicating pore 18, improves the sealing performance between breather valve 4 and the motor casing 17.
The valve core 8 may be a sphere or a cone, etc. which is convenient for sealing, and only the diameter of the sphere and the maximum outer diameter of the cone are required to be larger than the aperture of the first air hole 9, in this embodiment, a steel ball is taken as an example as the valve core 8.
The pressure spring 7 can be a spring piece, a flat spring, a torsion spring or a square spring and the like, and only needs to provide pushing and pressing elastic force.
And a limit step 13 for limiting the stroke of the valve core 8 is arranged in the inner cavity of the spring seat 6.
The valve body 1 is provided with a connecting bolt 14 installed with the motor shell 17, the surface of the connecting bolt 14 extending out of the valve body 1 and attached to the motor shell 17 is provided with a third sealing ring 15, a fourth sealing ring 16 is assembled between the bolt head and the valve body 1, and sealing performance between the connecting bolt 14 and the motor shell 17 is improved.
It should be noted that the waterproof breather valve 4 assembly mechanism is applicable to various motors such as a vehicle motor and an engineering machinery motor, and the starter is taken as a main body in the embodiment for further explanation.
As shown in fig. 3, the starter is a split structure, the joints between the components are various, and although the front cover 19 and the rear cover 20 are communicated through an air gap, the heat conduction performance is poor, so that local high temperature is caused, and the overall efficiency is affected. By adopting the assembly mechanism of the embodiment, the above problems can be solved only by respectively arranging the two communication holes 18 on the front cover 19 and the rear cover 20 and respectively installing the two assembly mechanisms, and the assembly mechanism has low cost and convenient integration.
In particular, the valve body 1 is preferably mounted to the lowermost portion of the motor housing 17 so as to discharge liquid such as condensed water.
Of course, on this basis, a plurality of assembly mechanisms can be installed at different positions on the motor housing 17 as required, so as to improve the ventilation capacity of the motor at each position and improve the overall performance.
To sum up, foretell waterproof breather valve assembly mechanism of motor simple structure, the principle is ingenious, adopt pure mechanical structure to add the pressure control principle, need not extra power, need not to change the original structure of motor, simply install and can realize the function of automatically regulated inner chamber atmospheric pressure outside the motor casing, in addition, this valve body structure prevents soaking ability reinforce, and even motor inner chamber is on fire under encapsulated situation also can cause automatic naked light that goes out behind the inner chamber oxygen deficiency in the short time, realize waterproof, fire prevention function, realize motor functionality breakthrough.
The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A waterproof breather valve assembly mechanism of a motor is characterized by comprising a valve body arranged outside a motor shell, wherein a containing cavity is arranged in the valve body, an air inlet and outlet channel is arranged on the valve body and is used for communicating the containing cavity with the outside, two breather valves which are oppositely arranged are arranged in the containing cavity,
the breather valve comprises a valve seat, a spring seat, a pressure spring and a valve core, wherein a single-opening inner cavity is formed in the valve seat, a first air hole extending to the outer end face is formed in the end face wall of the valve seat, a single-opening inner cavity is formed in the spring seat, a second air hole extending to the outer end face is formed in the end face wall of the spring seat, the valve core is arranged in the inner cavity of the spring seat, the pressure spring is arranged between the end face wall of the spring seat and the valve core, the opening of the spring seat is in interference press-fit with the first air hole, and the valve core is subjected to the action of the pressure spring and is sealed by the first air hole.
2. The waterproof breather valve assembly mechanism of motor of claim 1, characterized in that: and a first sealing ring is arranged between the valve core and the end face wall of the valve seat.
3. The waterproof breather valve assembly mechanism of motor of claim 1, characterized in that: one ends of the two breather valves are located in the accommodating cavity, the other ends of the two breather valves extend out of the surface where the valve body is attached to the motor shell, the motor shell is provided with a communicating hole communicated with the inner cavity of the motor corresponding to the extending part, and the extending part is assembled with a second sealing ring between the communicating holes.
4. The waterproof breather valve assembly mechanism of motor of claim 1, characterized in that: and a limiting step for limiting the stroke of the valve core is arranged in the inner cavity of the spring seat.
5. The waterproof breather valve assembly mechanism of motor of claim 1, characterized in that: the valve core is a sphere or a cone, and the diameter of the sphere and the maximum outer diameter of the cone are larger than the aperture of the first air holes.
6. The waterproof breather valve assembly mechanism of motor of claim 1, characterized in that: and the valve body is provided with a connecting bolt installed with the motor shell.
7. The waterproof breather valve assembly mechanism of motor of claim 6, characterized in that: the connecting bolt extends out of the surface, attached to the motor shell, of the valve body, a third sealing ring is arranged at the extending end of the connecting bolt, and a fourth sealing ring is assembled between the bolt head and the valve body.
8. The waterproof breather valve assembly mechanism of motor of claim 1, characterized in that: the valve body is arranged at the bottommost part of the motor shell.
9. The waterproof breather valve assembly mechanism of motor of claim 1, characterized in that: the valve body is provided with one or more, and each valve body is installed in different positions on motor casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921188950.6U CN210461826U (en) | 2019-07-25 | 2019-07-25 | Waterproof breather valve assembly mechanism of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921188950.6U CN210461826U (en) | 2019-07-25 | 2019-07-25 | Waterproof breather valve assembly mechanism of motor |
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| Publication Number | Publication Date |
|---|---|
| CN210461826U true CN210461826U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921188950.6U Active CN210461826U (en) | 2019-07-25 | 2019-07-25 | Waterproof breather valve assembly mechanism of motor |
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| CN (1) | CN210461826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332345A (en) * | 2019-07-25 | 2019-10-15 | 无锡明诚汽车部件有限公司 | Motor water-proof valve assembly mechanism |
| CN111828690A (en) * | 2020-06-16 | 2020-10-27 | 中国辐射防护研究院 | Novel multifunctional ventilation valve component for protective clothing |
-
2019
- 2019-07-25 CN CN201921188950.6U patent/CN210461826U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332345A (en) * | 2019-07-25 | 2019-10-15 | 无锡明诚汽车部件有限公司 | Motor water-proof valve assembly mechanism |
| CN111828690A (en) * | 2020-06-16 | 2020-10-27 | 中国辐射防护研究院 | Novel multifunctional ventilation valve component for protective clothing |
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