CN114233852A

CN114233852A - Seal ring and antenna

Info

Publication number: CN114233852A
Application number: CN202111552309.8A
Authority: CN
Inventors: 顾蔚; 王冠君; 陆超; 刘星; 孔斌; 朱良
Original assignee: Shaanxi Haiji Information Technology Co ltd
Current assignee: Shaanxi Haiji Information Technology Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-03-25
Anticipated expiration: 2041-12-17
Also published as: CN114233852B

Abstract

The invention relates to a sealing ring and an antenna. The sealing washer includes: the inner ring and the outer ring are concentrically arranged, a first surface for connecting the inner ring and the outer ring and a second surface for connecting the inner ring and the outer ring are arranged, and the first surface and the second surface are arranged in a back-to-back manner; the first surface is provided with a first annular groove concentric with the inner ring, a first buffer part is formed between the first annular groove and the inner ring, and a second buffer part is formed between the first annular groove and the outer ring; the second surface is provided with a second annular groove concentric with the inner ring, a third buffering part is formed between the second annular groove and the inner ring, and a fourth buffering part is formed between the second annular groove and the outer ring. The sealing ring provided by the invention can prevent gas in the antenna from flowing out in a high-temperature environment, so that the siphon effect in the existing sealing ring with the one-way opening can not be generated in low-temperature and other rain weather.

Description

Seal ring and antenna

Technical Field

The invention relates to the technical field of wireless communication, in particular to a sealing ring and an antenna.

Background

In the field of wireless communication technology, antennas are needed to transmit signals. When the antenna sets up in external environment, in order to prevent that the inside components and parts work that influence the antenna that rainwater among the external environment from entering into the antenna, need take sealed processing to the antenna for this reason, for example set up the sealing washer in the junction of antenna.

The existing sealing ring is mainly a one-way opening sealing ring, namely the sealing ring has the main function of preventing external rainwater from entering the antenna, such as the existing U-shaped sealing ring or Y-shaped sealing ring. The sealing ring is arranged in the antenna, and the problem is that under the condition of high temperature, gas in an inner cavity of the antenna expands, and the gas pushes against the side wall of the sealing ring, so that a gap is formed between the side wall of the sealing ring and the inner cavity of the antenna, and the gas in the inner cavity of the antenna is lost; if meet rainy weather that the air temperature reduces on the same day, then lead to the inside air contraction of antenna to form the negative pressure to form the siphon effect in sealing washer department, outside rainwater can be inhaled the antenna inner chamber this moment, makes the interior components and parts work of antenna effective.

Disclosure of Invention

Based on this, it is necessary to provide a sealing ring to solve the problem that when the existing one-way opening sealing ring is used for an antenna, a siphon effect may be generated in rainy weather with a large temperature difference to cause rainwater to enter an inner cavity of the antenna, and further provide an antenna comprising the sealing ring.

A seal ring, comprising:

the bearing comprises an inner ring, an outer ring, a first surface and a second surface, wherein the inner ring and the outer ring are concentrically arranged, the first surface is connected with the inner ring and the outer ring, the second surface is connected with the inner ring and the outer ring, and the first surface and the second surface are arranged in a reverse manner;

the first surface is provided with a first annular groove concentric with the inner ring, a first buffering part is formed between the first annular groove and the inner ring, a second buffering part is formed between the first annular groove and the outer ring, and after the first annular groove is subjected to an expansion acting force, the inner wall of the first annular groove can respectively abut against the first buffering part and the second buffering part;

the second surface is provided with a second annular groove concentric with the inner ring, a third buffering part is formed between the second annular groove and the inner ring, a fourth buffering part is formed between the second annular groove and the outer ring, and after the second annular groove is subjected to expansion acting force, the inner wall of the second annular groove can respectively abut against the third buffering part and the fourth buffering part.

According to the sealing ring, after the sealing ring is arranged in the antenna, when the external temperature is high, the acting force generated after the gas in the antenna expands acts on the first annular groove, and the acting force is dispersed to the first buffer part and the second buffer part after the first annular groove is stressed, so that the first buffer part and the second buffer part can respectively abut against the inner wall of the antenna, and the purpose of preventing the gas in the inner cavity of the antenna from flowing out is achieved; meanwhile, the external high-temperature air flow can also act on the second annular groove, and similarly, the second annular groove can disperse the acting force to the third buffer part and the fourth buffer part, so that the external air flow can be prevented from entering the inner cavity of the antenna. Because the gas in the antenna does not produce gaseous outflow in high temperature environment, consequently meet rainwater weather such as low temperature and can not produce the siphon effect in the sealing washer of current one-way opening.

In one embodiment, the first annular groove on the first surface is offset from the second annular groove on the second surface.

In one embodiment, the first annular groove is tapered, the first annular groove decreasing in cross-sectional area toward the second surface.

In one embodiment, the second annular groove is tapered, the second annular groove tapering in cross-sectional area proximate the first surface.

In one embodiment, an included angle between the inner wall of the inner ring and the axial extension direction of the sealing ring is an acute angle theta 1.

In one embodiment, an included angle between the outer wall of the outer ring and the axial extension direction of the sealing ring is an acute angle theta 2.

In one embodiment, the sealing ring is made of an elastic waterproof material.

An antenna comprises the sealing ring.

In one embodiment, the antenna includes a radome and a base, and the gasket is disposed between the radome and the base.

In one embodiment, the radome comprises an inner cavity and a matching part arranged around the edge of the inner cavity, wherein a first supporting platform is arranged on one side of the matching part close to the inner cavity;

the base is provided with an annular mounting groove, the bottom of the annular mounting groove is provided with a second supporting table, and the inner wall of the annular mounting groove, which is close to the second supporting table, is provided with a limiting table facing the second supporting table;

the antenna comprises an annular mounting groove, a first supporting platform, a second supporting platform, a sealing ring, a first buffering part, a third buffering part and a fourth buffering part, wherein the matching part of the antenna is arranged between the side wall of the annular mounting groove and the side wall of the second supporting platform, the first supporting platform of the matching part is parallel to the second supporting platform, the edge of the outer ring of the sealing ring is abutted against the inner side of the matching part, the first buffering part is abutted against the limiting platform, the third buffering part is abutted against the upper part of the second supporting platform, and the fourth buffering part is abutted against the upper part of the first supporting platform.

Drawings

FIG. 1 is a schematic diagram of the effect of a prior art seal ring;

FIG. 2 is a schematic structural diagram of a seal ring according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of the seal ring of FIG. 2;

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

FIG. 5 is an exploded view of an antenna in accordance with an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of an antenna according to an embodiment of the invention;

fig. 7 is a partially enlarged view of a portion B in fig. 6.

The reference numbers illustrate:

10. a seal ring;

110. an inner ring; 120. an outer ring; 130. a first surface; 131. a first annular groove;

132. a first buffer section; 133. a second buffer section; 140. a second surface;

141. a second annular groove; 142. a third buffer section; 143. a fourth buffer section;

20. an antenna;

210. an antenna cover; 211. a fitting portion; 2111. a first support table;

220. a base; 221. an annular mounting groove; 2211. a second support table; 2212. a limiting table;

30. an existing antenna.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention can be embodied in many different forms than those herein described and one skilled in the art can make similar modifications without departing from the spirit of the invention and it is therefore not limited to the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting the invention.

Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected through the interior of two elements or through the interaction of two elements unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "below," and "beneath" a second feature may be directly or obliquely under the first feature or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In the field of wireless communication technology, antennas are needed to transmit signals. When the antenna is disposed in an external environment, in order to prevent rainwater in the external environment from entering the inside of the antenna and affecting the operation of components inside the antenna, it is necessary to perform a sealing process on the antenna, for example, a sealing ring is disposed at a joint of the antenna 30. The conventional sealing ring is mainly a one-way opening sealing ring, i.e. the main function is to prevent external rain water from entering the inside of the antenna 30, such as the conventional U-shaped sealing ring or Y-shaped sealing ring, as shown in fig. 1. The problem with the sealing ring arranged in the antenna is that at high temperature, the gas in the antenna cavity expands, as shown by the arrow in fig. 1, and the gas presses against the side wall of the sealing ring, so that a gap is formed between the side wall of the sealing ring and the antenna cavity, and the gas in the antenna cavity is lost; if it is rainy day that the temperature of the air is reduced, the internal air of the antenna is contracted to form negative pressure, and a siphon effect is formed at the sealing ring, so that external rainwater can be sucked into the inner cavity of the antenna, and the components in the antenna work effectively. In addition, the self-locking function of the existing sealing gasket is difficult to realize in the installation process, and a fastener is required to be additionally arranged to fix the sealing gasket. Therefore, a sealing ring with a two-way opening is arranged, and the opening facing the inside of the antenna can be used after the internal gas of the antenna is heated and expanded, so that the gas in the antenna is prevented from flowing out, and the problem that the siphon effect is generated at the sealing position due to the compression of the gas in the antenna in the low-temperature rain weather is solved. Meanwhile, the self-locking antenna can be matched with the inner first closing structure of the antenna to realize the self-locking function without adopting an additional fastener to fix the sealing ring.

Referring to fig. 2 to 4, fig. 2 is a schematic structural diagram illustrating a seal ring according to an embodiment of the present invention, fig. 3 is a schematic cross-sectional diagram of fig. 2, and fig. 4 is an enlarged schematic partial diagram of a portion a in fig. 3. An embodiment of the present invention provides a seal ring 10 including: the inner ring 110 and the outer ring 120 are concentrically arranged, a first surface 130 connecting the inner ring 110 and the outer ring 120, and a second surface 140 connecting the inner ring 110 and the outer ring 120, the first surface 130 and the second surface 140 being arranged opposite to each other. A first annular groove 131 concentric with the inner race 110 is provided at the first surface 130, a first buffer portion 132 is formed between the first annular groove 131 and the inner race 110, and a second buffer portion 133 is formed between the first annular groove 131 and the outer race 120. When the first annular groove 131 is subjected to the expansion force, the inner wall of the first annular groove 131 can respectively press the first buffer portion 132 and the second buffer portion 133. A second annular groove 141 concentric with the inner race 110 is provided at the second surface 140, a third buffer 142 is formed between the second annular groove 141 and the inner race 110, and a fourth buffer 143 is formed between the second annular groove 141 and the outer race 120. When the second annular groove 141 is subjected to an expansion force, the inner wall of the second annular groove 141 can respectively press the third buffer portion 142 and the fourth buffer portion 143.

In this embodiment, after the seal ring 10 is disposed in the antenna 20, when the external temperature is high, the acting force generated after the gas inside the antenna 20 expands acts on the first annular groove 131, and the first annular groove 131 is stressed to disperse the acting force to the first buffer portion 132 and the second buffer portion 133, so that the first buffer portion 132 and the second buffer portion 133 can respectively press against the inner wall of the antenna 20, thereby preventing the gas in the inner cavity of the antenna 20 from flowing out; meanwhile, the external high-temperature airflow also acts on the second annular groove 141, and similarly, the second annular groove 141 can disperse the acting force to the third buffer portion 142 and the fourth buffer portion 143, and at this time, the external airflow can be prevented from entering the inner cavity of the antenna 20. Since the gas inside the antenna 20 does not flow out in a high-temperature environment, a siphon effect in the conventional one-way opening seal ring is not generated after the weather of rain water such as low temperature.

In designing the first and second

annular grooves

131 and 141, it is required that both the first and second

annular grooves

131 and 141 have a certain depth so that the first annular groove 131 can apply a large damping force to the first and

second cushioning parts

132 and 133 and the second annular groove 141 can apply a large damping force to the third and

fourth cushioning parts

142 and 143. In the designing process, since the thickness of the seal ring 10 is thin, if the extending direction of the depth of the first annular groove 131 coincides with the extending direction of the second annular groove 141, the depth of the first annular groove 131 and the depth of the second annular groove 141 are both limited. For this reason, when designing the first and second

annular grooves

131 and 141, it is necessary to stagger the positions of the first and second

annular grooves

131 and 141. Specifically, the first annular groove 131 on the first surface 130 is offset from the second annular groove 141 on the second surface 140, such as the first annular groove 131 is adjacent to the edge of the inner ring 110 and the second annular groove 141 is adjacent to the edge of the outer ring 120. As such, the first annular groove 131 can extend to a depth as close as possible to the second surface 140 from the first surface 130, and the second annular groove 141 can extend to a depth as close as possible to the first surface 130 from the second surface 140, so that the first annular groove 131 can be released to the first buffer portion 132 and the second buffer portion 133 when receiving the expansion force, and the second annular groove 141 can be released to the third buffer portion 142 and the fourth buffer portion 143 when receiving the expansion force.

When the first annular groove 131 receives the expansion force of the airflow inside the antenna 20, the force can be pressed against the inner wall of the first annular groove 131, so that the first buffer portion 132 and the second buffer portion can be tightly attached to the inner wall of the antenna 20. For this reason, in the stress simulation analysis, researchers believe that when the first annular groove 131 is designed to have a structure with a gradually changing cross-sectional area, the first buffer portion 132 and the second buffer portion 133 can be better pressed against the inner wall of the antenna. Specifically, referring to fig. 4, the first annular groove 131 is tapered, and the cross-sectional area of the first annular groove 131 decreases toward the second surface 140. That is, the inner wall of the first annular groove 131 is in the shape of a ramp, and the cross-sectional area gradually decreases as it changes from the first surface 130 to the second surface 140. According to the relevant mechanics knowledge, when the gas inside the antenna 20 expands, the acting force applied to the inclined surface of the first annular groove 131 can be decomposed into a horizontal acting force and a vertical acting force, the horizontal acting force is used for pressing the first buffer portion 132 and the second buffer portion 133, so that the gas flow inside the antenna 20 is prevented from overflowing, and the vertical acting force can be released after being transmitted to the antenna 20 along the seal ring 10. The first annular groove 131 may be tapered as the cross-sectional area of the first annular groove 131 varies uniformly toward the second surface 140.

Similarly, another embodiment may also adopt a similar structural design as the first annular groove 131 when designing the second annular groove 141. Specifically, the second annular groove 141 is tapered, wherein the second annular groove 141 gradually decreases in cross-sectional area toward the first surface 130. The operation principle of the second annular groove 141 is similar to that of the first annular groove 131. The shape of the second annular groove 141 may be similar to the shape of the first annular groove 131.

When the seal ring 10 is mounted in the antenna 20, in order to make the inner ring 110 and the outer ring 120 of the seal ring 10 fit with the inner wall of the antenna 20 as much as possible, thereby achieving the effect of enhancing the sealing performance of the antenna 20, the inner wall of the inner ring 110 or the side wall of the outer ring 120 may be designed to be inclined. Specifically, referring to fig. 4, an included angle between the inner wall of the inner ring 110 and the axial extension direction of the seal ring 10 is an acute angle θ 1, and an included angle between the outer wall of the outer ring 120 and the axial extension direction of the seal ring 10 is an acute angle θ 2, where θ 1 may be the same as θ 2. The inclined inner ring 110 and the inclined outer ring 120 can better press against the edge of the antenna sealing position, so that a better sealing effect is realized.

The material of the seal ring 10 may be an elastic waterproof material, for example, rubber or a thermoplastic elastomer.

The present invention also provides an antenna 20, as shown in fig. 5, wherein the antenna 20 includes the above-mentioned sealing ring 10. By using the sealing ring 10 provided by the invention in the antenna 20, the gas in the gas can be prevented from flowing out well, so that the siphon effect generated at the position where the sealing ring 10 is arranged on the antenna 20 in the low-temperature rain weather is avoided.

The antenna 20 of the present invention includes a radome 210 and a base 220, and a sealing ring 10 is disposed between the radome 210 and the base 220. The sealing ring 10 is used for sealing the joint between the radome 210 and the base 220, so as to ensure that components located inside the radome 210 can work normally.

Specifically, referring to fig. 6 and 7, the radome 210 includes an inner cavity and a fitting portion 211 disposed around an edge of the inner cavity, wherein a first support platform 2111 is disposed on a side of the fitting portion 211 close to the inner cavity; the base 220 is provided with an annular mounting groove 221, wherein the bottom of the annular mounting groove 221 is provided with a second support 2211, and the annular mounting groove 221 is provided with a limit table 2212 facing the second support 2211 near the inner wall of the second support 2211; the matching portion 211 of the antenna 20 is installed between the side wall of the annular installation groove 221 and the side wall of the second support table 2211, the first support table 2111 of the matching portion 211 is parallel to the second support table 2211, the edge of the outer ring 120 of the sealing ring 10 abuts against the inner side of the matching portion 211, the first buffer portion 132 abuts against the limit table 2212, the third buffer portion 142 abuts against the upper portion of the second support table 2211, and the fourth buffer portion 143 abuts against the upper portion of the first support table 2111.

The object of the present embodiment is to mate the mating portion 211 of the radome 210 with the annular mounting groove 221 of the base 220. Since the second support 2211 is disposed in the annular mounting groove 221 of the base 220, a mounting space can be formed between the side wall of the second support 2211 and the inner wall of the annular mounting groove 221, and the fitting of the radome 210 can be limited between the side wall of the second support 2211 and the inner wall of the annular mounting groove 221.

Since there is a gap between the fitting portion 211 of the radome 210 and the annular mounting groove 221 of the base 220 during the mounting process, the sealing ring 10 proposed in the present invention may be disposed between the fitting portion 211 and the annular mounting groove 221 for this purpose. The first support table 2111 provided on the fitting portion 211 and the second support table 2211 provided in the annular mounting groove 221 can support the fourth buffer portion 143 and the third buffer portion 142 of the seal ring 10, respectively. The stopper 2212 facing the second support 2211, which is provided in the annular mounting groove 221 near the inner wall of the second support 2211, can be pressed against the upper end of the first buffer 132 of the seal ring 10.

When the sealing ring 10 is mounted between the radome 210 and the base 220, the first annular groove 131 of the sealing ring 10 faces the inner cavity of the radome 210, and the second annular groove 141 faces the annular mounting groove 221 of the base 220. When the gas in the antenna cover 210 expands due to heat, the first annular groove 131 is stressed, the first buffer part 132 can press against the inner wall of the annular mounting groove 221, the second buffer part 133 can press against the side wall of the matching part 211 of the antenna cover 210, the third buffer part 142 presses against the upper part of the second support table 2211 of the annular mounting groove 221, and the fourth buffer part 143 presses against the first support table 2111 of the matching part 211; meanwhile, the force from the second annular groove 141 can be released to the limit table 2212 on the base 220 through the first buffer portion 132. Because the sealing washer 10 can prevent the gaseous outflow in the antenna house 210 at the in-process of the thermal expansion, consequently can not form the siphon phenomenon in sealing washer 10 department when microthermal rainwater weather to guarantee that antenna 20 can normally work.

In addition, in the present invention, after the fitting portion 211 of the radome 210 is fitted in the annular mounting groove 221 of the base 220, when a force is applied to the radome 210 and the base 220 to separate them, the force of the fitting portion 211 of the radome 210 is transmitted to the fourth buffer portion 143 of the gasket 10 through the first support table 2111, and is transmitted to the limit table 2212 of the base 220 along the first buffer portion 132 of the gasket 10, that is, when the force is applied to separate the radome 210 from the base 220, the base 220 can limit the separation of the radome 210 and the base 220 through the gasket 10, thereby achieving the self-locking function of the base 220 and the radome 210.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A seal ring, comprising:

the inner ring and the outer ring are concentrically arranged, a first surface connecting the inner ring and the outer ring and a second surface connecting the inner ring and the outer ring are arranged, and the first surface and the second surface are arranged in a reverse manner;

2. The seal ring of claim 1, wherein a first annular groove on the first surface is misaligned relative to a second annular groove on the second surface.

3. The seal ring of claim 1, wherein the first annular groove is tapered, the first annular groove tapering in cross-sectional area proximate the second surface.

4. The seal ring of claim 3, wherein the second annular groove is tapered, the second annular groove tapering in cross-sectional area proximate the first surface.

5. A seal ring according to claim 1, wherein the inner wall of the inner ring forms an acute angle θ 1 with the axial extension of the seal ring.

6. A seal ring according to claim 5, wherein the outer wall of the outer ring is at an acute angle θ 2 to the direction in which the axis of the seal ring extends.

7. The seal ring according to claim 1, wherein the seal ring is made of an elastic waterproof material.

8. An antenna comprising a seal ring according to any one of claims 1 to 7.

9. An antenna according to claim 8, wherein the antenna comprises a radome and a base, the sealing ring being disposed between the radome and the base.

10. The antenna of claim 9, wherein the radome comprises an inner cavity and a mating portion disposed around an edge of the inner cavity, wherein a side of the mating portion adjacent to the inner cavity is provided with a first support platform;