阅读说明：本技术 一种防水透气外壳和继电器 (Waterproof ventilative shell and relay ) 是由 刘新宇 于 2019-07-25 设计创作，主要内容包括：一种防水透气外壳和继电器,包括壳体,其特征在于：该壳体上设有通道、第一孔、第二孔和第三孔；该通道为沿壳体第一方向延伸,其一端封闭,通道内壁设有朝第二方向倾斜的斜坡；该第一孔开设于通道另一端并连通外界；第二孔开设于斜坡处且与壳体内部连通；该第三孔靠近通道的封闭端并连通外界。本发明的外壳和继电器,不限制安装方向,能将壳体内产生的气体排出,且在多个角度实现防水,延长电气使用寿命,结构简单。(The utility model provides a waterproof ventilative shell and relay, includes the casing, its characterized in that: the shell is provided with a channel, a first hole, a second hole and a third hole; the channel extends along the first direction of the shell, one end of the channel is closed, and the inner wall of the channel is provided with a slope inclining towards the second direction; the first hole is arranged at the other end of the channel and communicated with the outside; the second hole is formed in the slope and communicated with the interior of the shell; the third hole is close to the closed end of the channel and communicated with the outside. The shell and the relay do not limit the installation direction, can discharge gas generated in the shell, realize water prevention at a plurality of angles, prolong the service life of the electric appliance and have simple structures.)

1. a waterproof breathable shell comprises a shell body and is characterized in that: the shell is provided with a channel, a first hole, a second hole and a third hole; the channel extends along the first direction of the shell, one end of the channel is closed, and the inner wall of the channel is provided with a slope inclining towards the second direction; the first hole is arranged at the other end of the channel and communicated with the outside; the second hole is formed in the slope and communicated with the interior of the shell; the third hole is close to the closed end of the channel and communicated with the outside.

2. The waterproof breathable shell of claim 1, wherein: the third holes and the second holes are distributed in a staggered mode; or two third holes are included, and the second hole is positioned between the two third holes.

3. The waterproof breathable shell of claim 1, wherein: a reservoir is formed between the ramp and the closed end of the channel.

4. A waterproof breathable outer shell according to claim 1 or 3, wherein: the top of the shell is provided with a convex part, and the closed end of the channel is positioned at the top end of the convex part.

5. The waterproof breathable shell of claim 1, wherein: the inner wall of the channel is also provided with a first inclined plane inclining towards the second direction, and the first inclined plane is formed between the other end of the channel and the slope.

6. The waterproof breathable shell of claim 1 or 5, wherein: the first hole extends along the second direction, and the inner wall of the first hole is provided with a second inclined surface inclined towards the first direction.

7. The waterproof breathable shell of claim 1, wherein: the closed end of the channel is provided with a fourth hole, and the fourth hole is filled with epoxy resin glue to realize closing.

8. The waterproof breathable shell of claim 1, wherein: the housing includes a top wall and a side wall, the channel extends from the side wall to the top wall, and the first aperture is located on the side wall.

9. The waterproof breathable shell of claim 8, wherein: the second aperture is located on the top wall.

10. A waterproof ventilative relay, includes relay unit, its characterized in that: further comprising a waterproof breathable outer shell according to any one of claims 1 or 9.

Technical Field

The invention relates to the field of relays, in particular to a waterproof and breathable shell and a relay.

Background

The electromagnetic relay is an automatic switch element with an isolation function at an input end and an output end, is widely applied to various fields such as communication, automobiles, automatic control, household appliances and the like, and is one of the most important control elements.

In the current electromagnetic relay technology, there is a plastic envelope type electromagnetic relay, in order to prevent that liquid such as scaling powder, water, shape-keeping agent from getting into the relay inside, lead to the relay input, between the output or contact between the short circuit, insulating decline, therefore seal the relay, this makes the relay in the course of the work, because of the temperature rise leads to the working of plastics to wave the organic gas that sends, the unable discharge of heat, organic gas decomposes under the electric arc effect, the precipitation carbon compound, thereby increase relay fault rate, reduce life.

the utility model provides a be non-plastic envelope type electromagnetic relay, is provided with ordinary bleeder vent including shell and the relay unit who holds in the shell on the shell, can release the relay inside because the gas that the temperature rise produced and the heat that the contact switching load in-process produced, greatly improve the electric life of relay, but this kind of relay of taking ordinary penetrating gas pocket is not suitable for moist, has the occasion of water droplet.

Still another kind is non-plastic envelope type electromagnetic relay, is provided with special bleeder vent on the shell, but this kind of bleeder vent structure can prevent the water droplet entering in specific installation direction, nevertheless can't satisfy waterproof effect in other installation directions for the product has certain limitation in the installation direction.

Disclosure of Invention

The invention mainly aims to overcome the defects in the prior art and provides a waterproof and breathable shell and a relay, which are not limited in installation direction, can realize ventilation and multi-angle waterproofing and prolong the service life of the electric relay.

The invention adopts the following technical scheme:

A waterproof breathable shell comprises a shell body and is characterized in that: the shell is provided with a channel, a first hole, a second hole and a third hole; the channel extends along the first direction of the shell, one end of the channel is closed, and the inner wall of the channel is provided with a slope inclining towards the second direction; the first hole is arranged at the other end of the channel and communicated with the outside; the second hole is formed in the slope and communicated with the interior of the shell; the third hole is close to the closed end of the channel and communicated with the outside.

Preferably, the third holes and the second holes are distributed in a staggered manner; or two third holes are included, and the second hole is positioned between the two third holes.

preferably, a reservoir is formed between the ramp and the closed end of the channel.

Preferably, the top of the shell is provided with a convex part, and the closed end of the channel is positioned at the top end of the convex part.

Preferably, the inner wall of the channel is further provided with a first inclined surface inclined towards the second direction, and the first inclined surface is formed between the other end of the channel and the slope.

Preferably, the first hole extends along the second direction, and the inner wall of the first hole is provided with a second inclined surface inclined towards the first direction.

Preferably, the closed end of the channel is provided with a fourth hole, and the fourth hole is filled with epoxy resin glue to realize closing.

Preferably, the housing includes a top wall and a side wall, the channel extends from the side wall to the top wall, and the first aperture is located on the side wall.

Preferably, said second aperture is located on said top wall.

a waterproof ventilative relay, includes relay unit, its characterized in that: the waterproof breathable shell further comprises the waterproof breathable shell.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:

1. the shell and the relay are provided with the channel, the first hole, the second hole, the third hole and the like to form a waterproof and breathable structure, the installation direction is not limited, gas generated in the shell can be discharged, water resistance is realized at a plurality of angles, the service life of electricity is prolonged, and the structure is simple.

2. According to the shell and the relay, the third hole and the second hole are distributed in a staggered mode, so that when liquid enters the channel from the third hole, the liquid can be prevented from entering the shell from the second hole.

3. According to the shell and the relay, the liquid storage tank is formed between the slope and the closed end of the channel, the second hole is at a certain distance from the bottom wall of the liquid storage tank, and when liquid is located in the liquid storage tank, the liquid can be discharged through the third hole and cannot enter the shell; when the liquid can not be discharged from the third hole under a specific angle, the heat generated by the operation of the relay can evaporate the liquid.

4. According to the shell and the relay, the first inclined plane is arranged in the channel, and the second inclined plane is arranged in the first hole, so that a flow guiding effect is achieved.

5. The waterproof and breathable structure shell can be integrally formed by plastic parts in an injection molding mode, and is simple and practical in structure and convenient to process.

Drawings

FIG. 1 is a view of the housing structure of the present invention;

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a diagram of a relay structure according to the present invention;

FIG. 6 is a partial cross-sectional view (lay direction one) of the present invention;

FIG. 7 is a partial cross-sectional view (lay direction two) of the present invention;

FIG. 8 is a partial cross-sectional view (lay direction three) of the present invention;

FIG. 9 is a partial cross-sectional view (lay-down direction four) of the present invention;

Wherein: 10. the relay comprises a shell, 10a, a convex part, 10b, a liquid storage groove, 11, a channel, 12, a first hole, 13, a second hole, 13a, a small slope, 14, a third hole, 15, a slope, 16, a first inclined plane, 17, a second inclined plane, 18, a fourth hole, 19, epoxy glue, 20 and a relay unit.

Detailed Description

The invention is further described below by means of specific embodiments.

Referring to fig. 1 to 4, a waterproof and breathable shell comprises a shell 10, wherein the shell 10 can be made of insulating plastic, and the shape of the main body of the shell is a cuboid. The housing 10 includes a top wall, side walls, a bottom wall, and the like, which enclose a space for accommodating the device. A waterproof and breathable structure is provided at a suitable position on the housing 10, and includes a passage 11, a first hole 12, a second hole 13, a third hole 14, and the like.

The passage 11 extends in a first direction of the housing 10 and is closed at one end. In the second direction, a slope 15 inclined toward the second direction is provided on one side of the inner wall of the passage 11 near the inside of the housing 10. A reservoir 10b is formed between the ramp 15 and the closed end of the channel 11, and a first inclined surface 16 is formed between the ramp 15 and the other end of the channel 11, the first inclined surface 16 being also located on the side close to the inside of the housing 10. The first inclined surface 16 is inclined in a second direction.

In the present invention, the first direction is a direction of the height of the housing 10 and may be a Z-axis. The second direction is perpendicular to the first direction, may be a width direction of the housing 10, and may be a Y-axis. The third direction is perpendicular to the first direction, may be a longitudinal direction of the housing 10, and may be an X-axis.

the first hole 12 is opened at the other end of the channel 11, one end of which is communicated with the outside, and the other end is communicated with the channel 11. The first hole 12 may be disposed on the side wall and extend along the second direction, and the inner wall of the first hole is provided with a second inclined surface 17 inclined towards the first direction, and the second inclined surface 17 is located on a side of the first hole 12 away from the first inclined surface 16. The first inclined surface 16 may be inclined at an angle less than or equal to the angle at which the second inclined surface 17 is inclined, preferably less.

the second hole 13 opens at the ramp 15 and communicates with the interior of the housing 10 for discharging the gas generated during operation of the components inside the housing 10. In the third direction, the second hole 13 is located on the side of the ramp 15 close to the outside. In addition, a small slope 13a inclined along the second direction is arranged at the side part of the second hole 13, so that the height difference between the bottom surface of the liquid storage tank 10b and the second hole 13 forms a liquid storage structure.

The third hole 14 is near the closed end of the channel 11 and communicates with the outside. The number of third holes 14 may be one, two or even more. Preferably, two third holes 14 are included, the two third holes 14 and the second hole 13 are arranged in a staggered manner, and the second hole 13 is located between the two third holes 14. Access to the interior from the second bore 13 is avoided when liquid enters the channel 11 from the two third bores 14.

The present invention may be provided with a protrusion 10a at the top of the housing 10, and the closed end of the channel 11 is provided at the top end of the protrusion. The channel 11 may extend from the side wall to the top end of the convex portion 10a of the top wall, the first hole 12 may be provided on the side wall, the second hole 13 is located on the side of the top wall near the inside, a landing difference is formed between the second hole 13 and the third hole 14, and the third hole 14 is higher than the opening of the second hole 13. The third aperture 14 may be located on the side of the boss 10a or on the housing sidewall. The position of the convex portion 10a and the position and number of the waterproof and breathable structure are not exclusive and can be set as required.

further, the closed end of the channel 11 of the present invention may be further provided with a fourth hole 18, and the fourth hole 18 is filled with epoxy glue 19 to achieve the closure. The sealing material is not limited to this, and sealing may be performed by attaching a waterproof tape to the end face of the fourth hole 18.

The shell with the waterproof and breathable structure can be integrally formed by injection molding of plastic parts.

The invention also provides a waterproof and breathable relay, which comprises a relay unit 10 and the waterproof and breathable shell, wherein the relay unit 10 is arranged inside the shell 10.

The housing and the relay with the housing can realize water resistance and air permeability in a plurality of directions, and the specific principle is as follows by taking a first direction as a Z axis, a second direction as a Y axis and a third direction as an X axis as an example as shown in figure 5:

Referring to fig. 6, the housing 10 is located in the default direction, i.e., + Z direction, with its channel extending in the Z-axis direction, its boss located at the top of the housing 10, and the first and third holes 12 and 14 located at the sides. At this time, since the second hole 13 is offset from the two third holes 14, when water enters the channel 11, the water flows along the channel 11 to the first hole 12 and is discharged, and does not enter the interior through the second hole 13.

Referring to fig. 8, the housing 10 is turned 180 ° in the Z-axis direction from the default orientation of fig. 6, and the product placing direction is changed to the-Z direction with the convex portion at the bottom of the housing 10 and the first and third holes 12 and 14 at the side. At this time, the liquid enters the reservoir 10b through the first hole 12 or the third hole 14, and since the second hole 13 is located at a distance from the reservoir 10b and the third hole 14 is located below the second hole 13, the liquid is discharged through the third hole 14 without entering the inside of the housing 10.

referring to fig. 7, the housing 10 is turned in the X-axis direction (e.g., 90 ° left or right from the default direction of fig. 6), the product placement direction becomes + X or-X, and at this time, the protrusion is changed from being located at the top of the housing 10 to the left or right side. Since the second hole 13 is located on the side of the slope 15 close to the outside in the third direction, that is, the second hole 13 is higher than the first hole 12 and one of the third holes 14, the liquid in the reservoir 10b can first flow out from the first hole 12 and the third hole 14.

The housing 10 is turned over in the Y-axis direction (for example, 90 ° forward or backward) from the default direction of fig. 6, at which time the convex portion changes from being located at the top of the housing 10 to the front side or the rear side. Referring to fig. 9, if the product placement direction is changed to + Y for backward turning, the first hole 12 and the third hole 14 are changed from being located at the side of the housing 10 to being located at the top, and when liquid enters the channel 11 from the first hole 12 or the third hole 14, the liquid flows to the liquid storage tank 10b along the first inclined plane 16, since the height of the second hole 13 is greater than the bottom surface of the liquid storage tank 10b, the liquid cannot enter the housing 10 through the second hole 13 in a short time, and heat generated by the operation of the relay can evaporate the liquid. If the product placement direction is changed to-Y for the forward flip, the first and third holes 12 and 14 are located at the bottom and water cannot enter the channel 11 and the inside of the housing 10.

The waterproof and breathable structure can not only discharge gas generated by an internal relay, but also prevent liquid such as water flow and the like from entering the shell 10 at a plurality of angles, so that the relay can work in a humid environment, and the service life of the relay is ensured to be long enough for fixing the electricity.

the above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.