Antenna for smoke alarm

Abstract

The invention provides an antenna for a smoke alarm. The antenna comprises a shell, a ground wire, a feeder line and an antenna main body plate, the first end of the ground wire and the first end of the feeder line are bent and extend to be electrically connected with the antenna main body plate, the second end of the ground wire and the second end of the feeder line are installed together through the fixing plate, and the ground wire, the feeder line and the antenna main body plate are all contained in the shell; the smoke alarm is strong in interference resistance, long in radiation distance and suitable for being used as a smoke alarm.

Description

Technical Field

[0001] The present invention relates to the technical field of antennas, and in particular to an antenna used for a smoke alarm. Background Art

[0002] Siren refers to the device that sends out alarm signals. It has been widely used in smoke alarms. It is mainly used to send out forecast, alarm and alarm cancellation signals. It can also be used in the equipment management system of enterprises. The equipment life management is divided into initial equipment management, mid-term management and post-management. However, the existing smoke alarms are affected by the environment, have poor anti-interference performance, and have a short radiation distance, so the signal is easily interfered.

[0003] In view of the above, it is necessary to provide a new type of antenna for smoke alarm to overcome the above defects. Summary of the invention

[0004] The purpose of the present invention is to provide an antenna for a smoke alarm, which has strong anti-interference and long radiation distance and is suitable for use as a smoke alarm.

[0005] In order to achieve the above-mentioned purpose, the present invention provides an antenna for a smoke alarm, comprising: a shell, a ground wire, a feeder wire and an antenna main body plate; the first end of the ground wire and the first end of the feeder wire are bent and extended to be electrically connected to the antenna main body plate, the second end of the ground wire and the second end of the feeder wire are installed together on a fixing plate, and the ground wire, the feeder wire and the antenna main body plate are all housed in the shell.

[0006] Preferably, a ground wire starting end fixing clamp and a feed line starting end fixing clamp are provided on the antenna main body plate, and insulation is maintained between the ground wire starting end fixing clamp and the feed line starting end fixing clamp, the first end of the ground wire is electrically connected to the ground wire starting end fixing clamp, and the first end of the feed line is electrically connected to the feed line starting end fixing clamp.

[0007] Preferably, a ground wire fixing frame and a feeder fixing clamp are provided on the fixing plate, the second end of the ground wire is fixed on the ground wire fixing clamp, the second end of the feeder wire is fixed on the feeder fixing clamp, and insulation is maintained between the second end of the ground wire and the second end of the feeder wire.

[0008] Preferably, the outer shell includes an upper cover, a shell and a base, the antenna main body plate is fixedly mounted on the base, the shell and the base are buckled together, the upper cover is arranged on the shell, and the shell is located between the upper cover and the base.

[0009] Preferably, the ground wire is bent into a semicircular arc shape, and the feeder wire is bent into a semicircular arc shape.

[0010] Compared with the existing technology, the beneficial effect is that when feeding, the ground wire and the feeder generate high-frequency current, which will generate a radiation field (electric field, magnetic field) to form electromagnetic waves. This external antenna is designed for a frequency of 470-510MHz and is applied to LoRa. It has strong anti-interference and long radiation distance. It is an antenna developed as a smoke alarm.

[0011] Other features and advantages of the present invention will be set forth in the following description, and part will be apparent from the description, or can be understood by implementation of the present invention. Features and advantages of the present invention can be realized and obtained by the elements and combinations specifically pointed out in the appended application scope. These and other features of the present invention will become more clearly understood according to the following description and the appended claims, or can be understood by the implementation of the embodiments described in the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 An exploded view of the antenna for a smoke alarm provided by the present invention.

[0014] Figure 2 for Figure 1 A partial structural schematic diagram of an antenna for a smoke alarm is shown.

[0015] Figure numerals: 1. ground wire; 2. feeder; 3. feeder fixing clip; 4. fixing plate; 5. ground wire fixing clip; 6. outer shell; 7. antenna main plate; 8. ground wire starting end fixing clip; 9. feeder starting end fixing clip; 10. upper cover; 11. shell; 12. base. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and beneficial technical effect of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the present invention, not for limiting the present invention.

[0017] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be determined according to the specific circumstances.

[0019] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" refers to two or more, unless otherwise clearly and specifically defined.

[0020] See also Figure 1 to Figure 2 The present invention provides an antenna for a smoke alarm, comprising: a housing 6, a ground wire 1, a feeder wire 2 and an antenna main body plate 7; the ground wire 1 is bent into a semicircular arc shape, the feeder wire 2 is bent into a semicircular arc shape, the first end of the ground wire 1 and the first end of the feeder wire 2 are bent and extended to be electrically connected to the antenna main body plate 7, the second end of the ground wire 1 and the second end of the feeder wire 2 are installed together on a fixing plate 4, and the ground wire 1, the feeder wire 2 and the antenna main body plate 7 are all housed in the housing 6.

[0021] When feeding, the ground wire 1 and the feeder 2 generate high-frequency current, which will generate a radiation field (electric field, magnetic field) to form electromagnetic waves. This external antenna is designed for a frequency of 470-510MHz and is applied to LoRa. It has strong anti-interference and long radiation distance. It is an antenna developed as a smoke alarm.

[0022] In a preferred embodiment, a ground wire starting end fixing clamp 8 and a feeder starting end fixing clamp 9 are provided on the antenna main body plate 7, and the ground wire starting end fixing clamp 8 and the feeder starting end fixing clamp 9 are insulated from each other. The first end of the ground wire 1 is electrically connected to the ground wire starting end fixing clamp 8 to realize the electrical connection between the ground wire 1 and the antenna main body plate 7, and the first end of the feeder line 2 is electrically connected to the feeder starting end fixing clamp 9 to realize the electrical connection between the feeder line 2 and the antenna main body plate 7.

[0023] In a preferred embodiment, a ground wire fixing frame 5 and a feeder fixing clamp 3 are provided on the fixing plate 4, the second end of the ground wire 1 is fixed on the ground wire fixing clamp 5, the second end of the feeder 2 is fixed on the feeder fixing clamp 3, and the second end of the ground wire 1 and the second end of the feeder 2 are kept insulated.

[0024] Ideally, the signal energy is scattered in a spherical shape. The ground wire fixing frame 5, the feeder fixing clamp 3, the ground wire starting end fixing clamp 8 and the feeder starting end fixing clamp 9 on the fixing plate 4 are used to fix the ground wire 1 and the feeder 2 to roughly form a ring. The antenna main body plate 7 will form a strong reflection of the electromagnetic wave, and the ground wire 1 and the feeder 2 can cover the radiation field, thereby enabling the antenna signal gain.

[0025] In a preferred embodiment, the outer shell 6 includes an upper cover 10, a shell 11 and a base 12, the antenna main body plate 7 is fixedly mounted on the base 12, the shell 11 and the base 12 are buckled together, the upper cover 10 is covered on the shell 11, and the shell 11 is located between the upper cover 10 and the base 12, thereby protecting the devices inside the outer shell 6.

[0026] The present invention is not limited to what is described in the specification and implementation modes, and therefore additional advantages and modifications can be easily realized by those skilled in the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.

Claims

1. An antenna for a smoke alarm, characterized in that: include: A housing (6), a ground wire (1), a feed wire (2) and an antenna main body plate (7); the first end of the ground wire (1) and the first end of the feed wire (2) are bent and extended to be electrically connected to the antenna main body plate (7); the second end of the ground wire (1) and the second end of the feed wire (2) are installed together on a fixing plate (4); the ground wire (1), the feed wire (2) and the antenna main body plate (7) are all housed in the housing (6).

2. The antenna for a smoke alarm according to claim 1, characterized in that: The antenna main body plate (7) is provided with a ground wire starting end fixing clamp (8) and a feed line starting end fixing clamp (9), the ground wire starting end fixing clamp (8) and the feed line starting end fixing clamp (9) are insulated from each other, the first end of the ground wire (1) is electrically connected to the ground wire starting end fixing clamp (8), and the first end of the feed line (2) is electrically connected to the feed line starting end fixing clamp (9).

3. The antenna for a smoke alarm according to claim 1, characterized in that: The fixing plate (4) is provided with a ground wire fixing frame (5) and a feeder fixing clamp (3); the second end of the ground wire (1) is fixed on the ground wire fixing clamp (5); the second end of the feeder (2) is fixed on the feeder fixing clamp (3); and insulation is maintained between the second end of the ground wire (1) and the second end of the feeder (2).

4. The antenna for a smoke alarm according to claim 1, characterized in that: The housing (6) comprises an upper cover (10), a shell (11) and a base (12); the antenna main body plate (7) is fixedly mounted on the base (12); the shell (11) and the base (12) are buckled together; the upper cover (10) is covered on the shell (11); and the shell (11) is located between the upper cover (10) and the base (12).

5. The antenna for a smoke alarm according to claim 1, characterized in that: The ground line (1) is bent into a semicircular arc shape, and the feed line (2) is bent into a semicircular arc shape.

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