CN213543606U

CN213543606U - Wireless sensor

Info

Publication number: CN213543606U
Application number: CN202021189367.XU
Authority: CN
Inventors: 许爱军; 阙滨城
Original assignee: Shenzhen Genrace Technology Co ltd
Current assignee: Shenzhen Genrace Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-06-25
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a wireless sensor, include: a housing; the cover body is in threaded connection with the shell to cover the shell and is combined with the shell to form a cavity; and the circuit module is arranged in the cavity formed by the shell and the cover body. The utility model discloses a casing and lid threaded connection, then set up circuit module in the cavity that casing and lid formed, can guarantee circuit module's wireless transmission performance on the one hand, improve wireless sensor's leakproofness, on the other hand adopts casing and lid threaded connection to make circuit module's seal installation simple and easy, and adopts the accessory few, saves the hardware cost.

Description

Wireless sensor

Technical Field

The utility model belongs to the technical field of the sensor technique and specifically relates to a wireless sensor is related to.

Background

The wireless sensor is powered by a battery or a vibration generator during working, and is formed by a network formed by randomly distributed sensors, data processing units and micro nodes of a communication module in a self-organizing manner.

Along with the development of science and technology, wireless sensor is applied to different environment, is in under the adverse circumstances when wireless sensor, needs earlier to carry out seal packing to wireless sensor and uses again, but leads to its wireless transmission performance to descend after carrying out seal packing with wireless sensor, then is unfavorable for wireless sensor's under the adverse circumstances signal transmission, and wireless sensor's seal packing structure is complicated, the dismantlement of being not convenient for.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a wireless sensor, the structure is simple and easy on the one hand, and practical accessory is few, can save the hardware cost, and on the other hand improves wireless sensor's leakproofness and does not influence wireless sensor's wireless transmission performance.

An embodiment of the utility model provides a wireless sensor, include:

a housing;

the cover body is in threaded connection with the shell to cover the shell and is combined with the shell to form a cavity;

and the circuit module is arranged in the cavity formed by the shell and the cover body.

The utility model discloses wireless sensor has following beneficial effect at least: through casing and lid threaded connection, then set up circuit module in the cavity that casing and lid formed, can guarantee circuit module's wireless transmission performance on the one hand, improve wireless sensor's leakproofness, on the other hand adopts casing and lid threaded connection to make circuit module's sealed installation simple and easy, and adopts the accessory few, saves the hardware cost.

According to other embodiments of the present invention, a wireless sensor, the cavity comprises: the upper cavity is positioned in the cover body, and the lower cavity is positioned in the shell; the circuit module includes:

the PCB board is arranged in the lower cavity;

and the antenna assembly is arranged in the upper cavity and is connected with the PCB.

According to other embodiments of the present invention, a wireless sensor, the antenna assembly comprises:

the antenna body is positioned on the top surface inside the cover body;

the ejector pin is arranged on the PCB and connected with the antenna body.

According to the utility model discloses a wireless sensor of other embodiments, the shape of antenna body with the shape of PCB board is circular.

According to the utility model discloses a wireless sensor of other embodiments, be equipped with the metal level on the antenna body, thimble one end is connected the other end is connected on the metal level the PCB board.

According to the utility model discloses a wireless sensor of other embodiments, the metal level shape is circular, the metal level with the centre of a circle of PCB board is located the same axis.

According to the utility model discloses a wireless sensor of other embodiments, the inside first standing groove that sets up of casing, the PCB board set up in on the first standing groove.

According to the utility model discloses a wireless sensor of other embodiments, circuit module still includes:

one end of the flexible circuit board is connected with the PCB;

and the induction chip is connected with the other end of the flexible circuit board.

According to the utility model discloses a wireless sensor of other embodiments, the second standing groove has been seted up on the bottom in the casing, the response chip is located in the second standing groove.

According to the utility model discloses a wireless sensor of other embodiments, the casing with be equipped with fixed glue film between the lid.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a wireless sensor according to the present invention;

fig. 2 is a cross-sectional view of an embodiment of a wireless sensor according to the present invention;

fig. 3 is a schematic structural diagram of an antenna assembly and a PCB board in an embodiment of the present invention.

Reference numerals: 100. a housing; 110. a first placing groove; 120. a second placing groove; 130. fixing grooves; 200. a cover body; 300. a circuit module; 310. a PCB board; 320. an antenna assembly; 321. an antenna body; 322. a thimble; 323. a metal layer; 330. a flexible circuit board; 340. an induction chip; 350. a battery; 400. a cavity; 410. an upper cavity; 420. a lower cavity; 500. a base.

Detailed Description

The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.

In the description of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. If a feature is referred to as being "disposed," "secured," "connected," or "mounted" to another feature, it can be directly disposed, secured, or connected to the other feature or indirectly disposed, secured, connected, or mounted to the other feature.

In the description of the embodiments of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.

Referring to fig. 1 and fig. 2, showing the structure schematic diagram of wireless sensor in the embodiment of the utility model, the embodiment of the utility model discloses a wireless sensor, include: the cover body 200 is in threaded connection with the housing 100 to cover the housing 100, the cover body 200 and the housing 100 are combined to form a cavity 400, and the circuit module 300 is disposed in the cavity 400 formed by the housing 100 and the cover body 200.

Through lid 200 and the casing 100 that sets up threaded connection, and circuit module 300 sets up in cavity 400, in order to guarantee installing in casing 100 and lid 200 that circuit module 300 can the leakproofness, in order to realize the leakproofness setting of sensor, both can adapt to outside adverse circumstances's influence, can make wireless sensor keep normal wireless transmission performance again, and only need casing 100 and lid 200 can be with circuit module 300 seal installation, the accessory that uses through this mounting means is few, save the hardware cost.

The shape of the casing 100 is cylindrical, the cover 200 has the same shape as the casing 100, a first thread is disposed on the outer surface of the casing 100 close to the cover 200, and a second thread matched with the first thread is disposed on the inner surface of the cover 200 close to the casing 100. Through the arrangement of the first screw thread and the second screw thread, the cover body 200 can be easily covered on the casing 100, and the cover body 200 and the casing 100 can be tightly connected.

In some embodiments, the bottom of the casing 100 is provided with a fixing groove 130, and the bottom of the casing 100 is provided with a base 500, the base 500 is shaped like a "convex", and the base 500 is partially inserted into the fixing groove 130 to be connected with the casing 100. The housing 100 is stably placed through the base 500.

In some embodiments, a fixing adhesive layer is disposed between the cover 200 and the housing 100 and located at a joint of the cover 200 and the housing 100, the fixing adhesive layer is filled with high temperature glue, the fixing adhesive layer formed by filling the high temperature glue is disposed at the joint of the cover 200 and the housing 100, so that the sealing performance of the cover 200 and the housing 100 is increased, and the high temperature glue can prevent the sealing performance of the cover 200 and the housing 100 from being affected by high temperature generated by the circuit module 300 in the cavity 400.

In some embodiments, the circuit module 300 includes: PCB board 310 and antenna assembly 320, wherein cavity 400 comprises: an upper cavity 410 and a lower cavity 420, wherein the upper cavity 410 is located inside the cover 200, and the lower cavity 420 is located inside the housing 100. The PCB 310 is disposed in the lower cavity 420 of the housing 100, the antenna assembly 320 is disposed in the upper cavity 410 of the cover 200, and the antenna assembly 320 is connected to the PCB 310.

The antenna assembly 320 is disposed on the upper cavity 410 of the cover 200, when the cover 200 is covered on the housing 100, the antenna assembly 320 is located on the PCB 310, and as the cover 200 and the housing 100 are screwed, the antenna assembly 320 gradually approaches the PCB 310 until the cover 200 and the housing 100 are completely covered, the antenna assembly 320 and the PCB 310 are completely connected, so that signal transmission between the antenna assembly 320 and the PCB 310 is stable. The antenna assembly 320 is disposed on the cover 200 to improve the wireless transmission performance of the wireless sensor.

Referring to fig. 2 and 3, in some embodiments, the antenna assembly 320 includes: an antenna body 321 and a thimble 322, the antenna body 321 is disposed on the inner top surface of the cover 200, and the thimble 322 is disposed on the PCB 310 and contacts the antenna body 321. The antenna body 321 is disposed at the top of the cover 200, which can ensure that the antenna body 321 is not affected by the external environment and can ensure the wireless transmission performance of the antenna body 321, and the antenna body 321 is connected to the PCB 310 through the thimble 322, so that the antenna body 321 and the PCB 310 can communicate with each other normally.

The antenna body 321 and the PCB 310 are separately disposed, so that the antenna body 321 and the PCB 310 can be detached separately for replacement, and the whole circuit module 300 is not required to be replaced due to damage.

The shape of the antenna body 321 and the shape of the PCB 310 are both circular. In other embodiments, the shape of the antenna body 321 and the shape of the PCB 310 may be rectangular or diamond. It is only necessary that the thimble 322 always falls on the antenna body 321 when rotating along with the cover 200, so that the thimble 322 is always connected to the antenna body 321 when the cover 200 covers the housing 100, and the communication performance between the antenna body 321 and the PCB 310 is not affected. If the antenna main body 321 and the PCB 310 are circular, the antenna main body 321 can be easily mounted on the top of the cover 200, and the PCB 310 can be easily mounted in the housing 100, while the cover 200 does not affect the contact between the antenna main body 321 and the thimble 322 during the rotation process, and thus the wireless transmission performance of the antenna main body 321 is not affected.

In some embodiments, the antenna body 321 is provided with a metal layer 323, the metal layer 323 is located inside the antenna body, and one end of the thimble is connected to the PCB and the other end is connected to the metal layer 323. Specifically, the thimble 322 abuts against the metal layer 323 to realize the connection between the antenna body 321 and the PCB 310.

The metal layer 323 is circular, and the centers of the metal layer 323 and the PCB 310 are located on the same axis. Because the metal layer 323 and the PCB 310 are both circular, and the centers of the metal layer 323 and the PCB 310 are located on the same axis, and the thimble 322 is connected and abutted to the metal layer 323, it is only necessary that the thimble 322 can abut to the metal layer 323, and at which position the cover body 200 and the housing 100 are covered, the thimble 322 always abuts to the metal layer 323, so that the signal transmission of the antenna body 321 and the PCB 310 is stable.

In the present embodiment, the center of the antenna body 321 and the center of the PCB 310 are located on the same axis. And one end of the thimble 322 is disposed on the PCB 310, and the other end abuts against the metal layer 323, so that the thimble 322 does not affect the communication performance between the antenna body 321 and the PCB 310 during the rotation process.

In some embodiments, the first placement groove 110 is formed in the housing 100 near the cover 200, the first placement groove 110 is shaped like a step, and the PCB 310 abuts against the step of the first placement groove 110. The PCB 310 is firmly installed in the housing 100 by abutting the PCB 310 on the stepped portion of the first placement groove 110.

In some embodiments, the circuit module 300 further includes: the flexible printed circuit board 330, the sensing chip 340 and the battery 350, the sensing chip 340 is disposed in the lower cavity 420 of the housing 100, and one end of the flexible printed circuit board 330 is connected to the PCB 310, and the other end is connected to the sensing chip 340. The battery 350 is mounted on an end of the PCB 310 remote from the cover 200. The sensing chip 340 is connected to the PCB 310 through the flexible circuit board 330, so that signal transmission between the sensing chip 340 and the PCB 310 is stabilized.

The inner bottom of the housing 100 is provided with a second placing groove 120, the second placing groove 120 is rectangular, and the sensing chip 340 is disposed in the second placing groove 120. By placing the sensing chip 340 in the second placing groove 120, the sensing chip 340 is sensitive to sense information, so that the sensitivity of the wireless sensor is improved.

A wireless sensor according to an embodiment of the present invention is described in detail below in a specific embodiment with reference to fig. 2 and 3. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

The induction chip 340 is placed in the second placing groove 120 to improve the sensitivity of induction information of the induction chip 340, then the PCB 310 is disposed on the first placing groove 110, one end of the flexible circuit board 330 is connected to the induction chip 340, the other end of the flexible circuit board is connected to the PCB 310, and the antenna body 321 and the PCB 310 are connected through the thimble 322 to transmit signals. After the circuit module 300 is completely installed, the cover 200 and the housing 100 are screwed, and since the housing 100 and the cover 200 are cylindrical and the antenna body 321 is circular, the antenna body 321 is not affected during the process of spirally fixing the cover 200 and the housing 100. Because the centers of the metal layer 323 and the PCB 310 are located on the same axis, and one end of the pin is connected to the PCB 310 and the other end of the pin abuts against the metal layer 323, no matter which position the cover 200 and the housing 100 are located, the pin 322 is always in contact with the metal layer 323, so that the communication performance between the antenna body 321 and the PCB 310 is stable. When the cover 200 and the housing 100 are completely fastened, the antenna body 321 is tightly attached to the inner top surface of the cover 200, so as to ensure the wireless transmission performance of the antenna body 321. Finally, high-temperature glue is filled at the joint of the cover body 200 and the shell 100 to form a fixed glue layer, so that the sealing performance of the whole wireless sensor is improved, and the influence of the external severe environment on the wireless sensor is reduced.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims

1. A wireless sensor, comprising:

a housing;

the circuit module is arranged in the cavity formed by the shell and the cover body;

the cavity includes: the upper cavity is positioned in the cover body, and the lower cavity is positioned in the shell;

the circuit module includes:

the PCB board is arranged in the lower cavity;

the antenna assembly is arranged in the upper cavity and is connected with the PCB;

the antenna assembly includes:

the antenna body is positioned on the top surface inside the cover body;

the ejector pin is arranged on the PCB and connected with the antenna body.

2. The wireless sensor of claim 1, wherein the shape of the antenna body and the shape of the PCB board are both circular.

3. The wireless sensor according to claim 2, wherein a metal layer is disposed on the antenna body, and one end of the thimble is connected to the metal layer and the other end is connected to the PCB.

4. The wireless sensor of claim 3, wherein the metal layer is circular in shape and is located on the same axis as the center of the PCB.

5. The wireless sensor of claim 1, wherein a first placement slot is disposed inside the housing, and the PCB board is disposed on the first placement slot.

6. The wireless sensor of any one of claims 1 to 5, wherein the circuit module further comprises:

one end of the flexible circuit board is connected with the PCB;

7. The wireless sensor according to claim 6, wherein a second placement groove is formed on the bottom in the housing, and the sensing chip is located in the second placement groove.

8. The wireless sensor according to any one of claims 1 to 5, wherein a fixing glue layer is provided between the housing and the cover.