CN210296633U - Antenna structure of distribution automation wireless communication terminal - Google Patents

Abstract

The utility model discloses a distribution automation wireless communication terminal's antenna structure, including the PCB board, through the oscillator that two fillets link to each other with the PCB board, still include bottom plate, dustcoat, PCB board, dustcoat are all connected on the bottom plate, and inside the PCB board was located the dustcoat, the oscillator passes through the support and is connected with the PCB board. An object of the utility model is to provide a distribution automation wireless communication terminal's antenna structure to solve the problem of antenna in the metal rack the inside among the prior art, realize avoiding the metal rack to shield the electromagnetic wave, the purpose of the antenna external mounting of being convenient for.

Description

Antenna structure of distribution automation wireless communication terminal

Technical Field

The utility model relates to a wireless communication field, concretely relates to distribution automation wireless communication terminal's antenna structure.

Background

With the development of smart power grids and ubiquitous power internet of things, wireless communication has become a development trend of distribution automation communication terminals due to the fact that cable connection and greatly reduced equipment cost are not needed, and installation is convenient. The performance of the antenna, which is a key component of wireless communication, directly affects the communication quality of the whole wireless communication system. The antenna that distribution automation communication terminal adopted is traditional sucking disc rod-type omnidirectional antenna, and the antenna element is the monopole form, and places in the rack the inside, and two problems mainly exist at present: 1. the antenna has large volume and is not beneficial to integration and installation; 2. the antenna is arranged in the metal cabinet, and due to the shielding effect of metal, electromagnetic waves cannot form effective radiation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a distribution automation wireless communication terminal's antenna structure to solve the problem of antenna in the metal rack the inside among the prior art, realize avoiding the metal rack to shield the electromagnetic wave, the purpose of the antenna external mounting of being convenient for.

The utility model discloses a following technical scheme realizes:

the utility model provides a distribution automation wireless communication terminal's antenna structure, includes the PCB board, through the oscillator that two fillets link to each other with the PCB board, still includes bottom plate, dustcoat, PCB board, dustcoat are all connected on the bottom plate, and the PCB board is located inside the dustcoat, the oscillator passes through the support and is connected with the PCB board.

Problem to antenna among the prior art in metal rack the inside, the utility model provides a distribution automation wireless communication terminal's antenna structure, PCB board and oscillator pass through two leg welding, and this belongs to prior art in this field. This application increases the bottom plate to set up the dustcoat on the bottom plate, make between bottom plate and the dustcoat jointly around forming the enclosure space, the PCB board then sets up in this enclosure space, protects the PCB board through the dustcoat. The oscillator is connected with the PCB through the support, compares with traditional connected mode, and two pins (ground connection foot and feed foot) of oscillator will not receive the stress, can guarantee not to produce deformation for a long time, guarantee the reliability. The utility model discloses during the use, with bottom plate direct mount connect the rack outside can, realized avoiding the purpose of metal rack shielding electromagnetic wave, the antenna external mounting of being convenient for.

Furthermore, the oscillator is a PIFA antenna made of metal elastic sheets. The PIFA antenna is bent into an inverted L shape and is provided with a groove on the surface. PIFA (planar Inverted F antenna) antenna is an improved antenna form of monopole antenna, and the antenna is bent to form an Inverted L antenna form on the basis of the monopole antenna, and a grounding branch is added, and an antenna element is flattened so as to expand the bandwidth of the antenna. Through the form of slotting, a plurality of resonant circuits appear in the antenna, and a multi-frequency antenna is formed, so that the required working frequency band of the power distribution terminal is met. By adopting the design of the multi-frequency PIFA antenna, the height of the antenna radiation unit can be obviously reduced, the antenna is very easy to place outside the cabinet, and further the antenna failure caused by the shielding effect of the cabinet when the antenna is placed inside the cabinet is avoided.

Further, the outer cover is made of ABS materials. The waterproof, dustproof and ultraviolet-proof effects are ensured.

Furthermore, the support is connected with the oscillator in a hot melting mode. The hot melt connection is current connected mode, if connect through the hot melt glue rifle can, arbitrary current hot melt connected mode all can be applicable to in this application.

Furthermore, the PCB further comprises two pins, one pin is welded with the copper exposed part on the front surface of the PCB, and the other pin penetrates through the PCB and is connected with the feeder line on the back surface of the PCB.

Furthermore, the surface of the outer cover is provided with an opening for the feed line to penetrate out.

Further, the rubber plug matched with the opening is further included. The rubber plug is used for plugging the opening, can be composed of multiple petals and arranged around the feeder line, can be integrally matched with the opening, and is provided with a small hole to enable the feeder line to penetrate out.

Further, the bottom plate is a galvanized plate.

Furthermore, the upper surface of the bottom plate is provided with a groove, and magnetic steel is placed in the groove. The installation of whole antenna structure adopts magnetism to inhale the mode in this scheme, at first loading magnetic metal piece at the computer lab top, then through the magnet steel with this antenna inhale at computer lab top edge can.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model relates to a distribution automation wireless communication terminal's antenna structure increases the bottom plate to set up the dustcoat on the bottom plate, make between bottom plate and the dustcoat jointly around forming the enclosure space, the PCB board then sets up in this enclosure space, protects the PCB board through the dustcoat.

2. The utility model relates to a distribution automation wireless communication terminal's antenna structure, the oscillator passes through the support to be connected with the PCB board, compares with traditional connected mode, and two fillets of oscillator will not receive stress, can guarantee not to produce deformation for a long time, guarantee the reliability.

3. The utility model relates to a distribution automation wireless communication terminal's antenna structure through the grooved form, makes a plurality of resonant circuit appear in the antenna, forms the multifrequency antenna to satisfy distribution terminal's required work frequency channel. By adopting the design of the multi-frequency PIFA antenna, the height of the antenna radiation unit can be obviously reduced, the antenna is very easy to place outside the cabinet, and further the antenna failure caused by the shielding effect of the cabinet when the antenna is placed inside the cabinet is avoided.

4. The utility model relates to a distribution automation wireless communication terminal's antenna structure, whole antenna structure's installation adopts magnetism to inhale the mode, at first computer lab top loading magnetic metal piece, then through the magnet steel with this antenna inhale at computer lab top edge can.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a perspective view of an embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

the method comprises the following steps of 1-PCB (printed circuit board), 2-vibrator, 3-bottom plate, 4-outer cover, 5-bracket, 6-magnetic steel and 7-hole forming.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1:

as shown in fig. 1, the antenna structure of the distribution automation wireless communication terminal comprises a PCB board 1 and a vibrator 2 connected with the PCB board 1 through two welding pins, and is characterized by further comprising a bottom board 3 and an outer cover 4, wherein the PCB board 1 and the outer cover 4 are both connected to the bottom board 3, the PCB board 1 is located inside the outer cover 4, and the vibrator 2 is connected with the PCB board 1 through a support 5.

Preferably, the vibrator 2 is a PIFA antenna made of a metal elastic sheet. The PIFA antenna is bent into an inverted L shape and is provided with a groove on the surface.

In this embodiment, the antenna unit is in the form of a PIFA (planar Inverted F antenna), the PIFA antenna is an improved antenna form of a monopole antenna, and the antenna is bent to form an Inverted L antenna form on the basis of the monopole antenna, and a ground branch is added, and the antenna element is planarized to expand the antenna bandwidth. Through the form of slotting, a plurality of resonant loops appear on the antenna, and a multi-frequency antenna is formed. Thereby meeting the required operating frequency band of the power distribution terminal. In the embodiment, by adopting the design of the multi-frequency PIFA antenna, the height of the antenna radiation unit is only 18mm, while the height of the existing monopole antenna is 250mm, and the height is reduced by over 80 percent, and after the height is reduced, the antenna is very easy to place outside the cabinet, so that the antenna failure caused by the shielding effect of the cabinet and placed inside the cabinet is avoided.

Example 2:

in the antenna structure of a distribution automation wireless communication terminal shown in fig. 1, based on embodiment 1, the housing 4 is made of ABS material. The support 5 is connected with the oscillator 2 in a hot melting mode. The PCB further comprises two pins, one pin is welded with the exposed copper part on the front surface of the PCB1, and the other pin penetrates through the PCB1 and is connected with a feeder line on the back surface of the PCB 1. The surface of the outer cover 4 is provided with an opening 7 for the feed line to penetrate out. And the rubber plug is matched with the opening 7. The bottom plate 3 is a galvanized plate. The upper surface of the bottom plate 3 is provided with a groove, and magnetic steel 6 is placed in the groove.

The antenna unit adopts the oscillator combination that PCB board, hot melt connected's support, metal shrapnel formed in this embodiment, and through the supporting role of hot melt support, two leg (ground connection foot and feed foot) of metal shrapnel will not receive stress, can guarantee not to produce deformation for a long time, guarantee the reliability. The outer cover is made of ABS material, and is sealed by ultrasonic waves, so that water resistance, dust resistance and ultraviolet resistance are guaranteed. The antenna is installed by adopting a magnetic suction scheme, a metal sheet is loaded on the top of the machine room, and then the antenna is sucked on the edge of the top of the machine room through magnetic steel.

Specifically, the antenna unit adopts a PIFA antenna form, one pin (a wider pin) of the antenna is welded with the copper exposed part on the front surface of the PCB, the other pin (a narrower pin) of the antenna penetrates through the PCB, and the back surface of the antenna is connected with a feeder line through a section of 50 omega matching microstrip line; a gradual feed structure is adopted to widen the bandwidth of the antenna. The PCB board of antenna passes through the screw and fixes with the double-screw bolt in the bottom plate, and the antenna bottom plate adopts the galvanized sheet material, is equipped with the recess in the intermediate position and places the magnet steel for realize the fixed at antenna and computer lab top. The antenna outer cover is made of ABS materials, and is fixed with the bottom plate through screws. The feeder line penetrates out of a hole in the lower left corner of the outer cover, and a waterproof rubber plug is arranged at the hole part, so that waterproof and dustproof functions are realized.

Through the experiment, this embodiment can guarantee with external effective communication, and possesses following characteristics: 1. indexes such as standing wave, efficiency and gain are improved by more than 5%. 2. The low section is favorable to hiding the installation, adopts the magnet steel fixed, and the mountable is outside in the rack. 3. ABS material dustcoat, waterproof, dustproof. 4. And a wireless communication form is adopted, so that the cost of the cable is reduced, and the cable has strong compatibility and portability.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. The utility model provides a distribution automation wireless communication terminal's antenna structure, includes PCB board (1), oscillator (2) that link to each other with PCB board (1) through two fillets, its characterized in that still includes bottom plate (3), dustcoat (4), PCB board (1), dustcoat (4) are all connected on bottom plate (3), and PCB board (1) is located inside dustcoat (4), oscillator (2) are connected with PCB board (1) through support (5).

2. The antenna structure of a distribution automation wireless communication terminal as claimed in claim 1, characterised in that the vibrator (2) is a PIFA antenna made of metal shrapnel.

3. The antenna structure of a distribution automation wireless communication terminal as claimed in claim 2, characterised in that the PIFA antenna is bent in an inverted L shape and is grooved on the surface.

4. A distribution automation wireless communication terminal antenna structure according to claim 1 characterised in that the cover (4) is made of ABS material.

5. An antenna structure of a distribution automation wireless communication terminal according to claim 1 is characterized in that the bracket (5) is hot melt connected with the vibrator (2).

6. The antenna structure of a distribution automation wireless communication terminal according to claim 1, characterized in that, it further comprises two pins, one pin is soldered to the exposed copper portion on the front side of the PCB board (1), and the other pin passes through the PCB board (1) and is connected to the feeder on the back side of the PCB board (1).

7. An antenna structure of a distribution automation wireless communication terminal according to claim 6 characterised in that the housing (4) surface is provided with an opening (7) for the exit of the feeder.

8. The antenna structure of a distribution automation wireless communication terminal according to claim 7 is characterized by further comprising a rubber plug matching with the opening (7).

9. The antenna structure of a distribution automation wireless communication terminal according to claim 1 is characterized in that the base plate (3) is a galvanized plate.

10. An antenna structure of a distribution automation wireless communication terminal according to claim 1 is characterized in that the upper surface of the bottom plate (3) is provided with a groove, and a magnetic steel (6) is placed in the groove.

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