CN112134059B

CN112134059B - Serial port converter

Info

Publication number: CN112134059B
Application number: CN202010986191.9A
Authority: CN
Inventors: 姚振新; 乐志猛; 段体永
Original assignee: Shanghai High Flying Electronics Technology Co ltd
Current assignee: Shanghai High Flying Electronics Technology Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2022-05-03
Anticipated expiration: 2040-09-18
Also published as: CN112134059A

Abstract

The invention discloses a serial port converter, and relates to the technical field of internet of things network communication. The serial port converter comprises a shell and a power interface, wherein the shell is arranged in a step shape, at least three steps are arranged from top to bottom, and the width of the shell ranges from 18mm to 36 mm. The power interface is arranged on the step at the lowest part of the shell, the shell is internally provided with an AC-to-DC module, and the power interface is electrically connected with the AC-to-DC module so that the power interface can be connected with DC and AC. Through setting up the casing into at least three ladder from top to bottom, with power source and various communication interface rationally distributed on three ladder, set up the width of casing into 18mm ~ 36mm to reduce serial ports converter occupation space on the guide rail. The shell is internally provided with the AC-DC conversion module which can be directly connected with commercial power, so that the cost of the power adapter is saved, and the wiring is more convenient.

Description

Serial port converter

Technical Field

The invention relates to the technical field of internet of things network communication, in particular to a serial port converter.

Background

With the rapid development of the internet of things technology, the application of the serial port converter is more and more extensive. At present, a power interface and various communication interfaces are arranged on a shell of a serial port converter, and the serial port converter is mainly placed on a desktop or installed on a guide rail for use.

In the serial port converter in the prior art, because the shell is provided with the power interface and various communication interfaces, the width of the shell is often set to be wider, limited guide rail space is occupied, the power interface can only be connected with direct current, a power adapter is required to be added when the shell is connected with alternating current, wiring is complex, and cost is high.

Disclosure of Invention

The invention aims to provide a serial port converter which occupies small space of a guide rail and can be connected with alternating current and direct current.

In order to achieve the purpose, the invention adopts the following technical scheme:

a serial port converter, comprising:

the shell is arranged in a step shape, at least three steps are arranged from top to bottom, and the width of the shell is 18-36 mm;

the power interface is arranged on the ladder at the lowest part of the shell, an alternating current to direct current module is arranged inside the shell, and the power interface is electrically connected with the alternating current to direct current module so that the power interface can be connected with direct current and alternating current.

Optionally, the voltage range of the power interface for accessing alternating current is 100V-400V, and the voltage range for accessing direct current is 9V-50V.

Optionally, the bottom of the housing is provided with a guide rail groove, and the guide rail groove is clamped with the guide rail.

Optionally, a fixing part is arranged on one side of the guide rail groove, and the fixing part is slidably arranged on the housing and can be abutted against the guide rail so as to fix the housing on the guide rail.

Optionally, one end of the fixing member is further provided with a pull ring, and the pull ring extends out of one side of the shell.

Optionally, a communication interface is further arranged on the shell, the communication interface is located in the middle of the ladder, and the communication interface is a three-hole wiring terminal.

Optionally, an antenna hole is further disposed on the housing, and the antenna hole is located on the lowermost step.

Optionally, an antenna hole baffle is further disposed on the housing.

Optionally, the serial port converter further includes a lead cover, and the lead cover is used for protecting the power interface and the communication interface.

Optionally, still be provided with the draw-in groove on the casing, resume factory setting button, restart reset button and pilot lamp, the draw-in groove resume factory setting button restart reset button with the pilot lamp all sets up in the top on the ladder.

The invention has the beneficial effects that:

according to the serial port converter provided by the invention, the shell is provided with at least three steps from top to bottom, the power interface and various communication interfaces are reasonably arranged on the at least three steps, and the width of the shell is set to be 18-36 mm, so that the occupied space of the serial port converter on the guide rail is reduced. The shell is internally provided with the AC-DC conversion module which can be directly connected with commercial power, so that the cost of the power adapter is saved, and the power interface is arranged on the step at the bottom, so that the wiring is more convenient.

Drawings

Fig. 1 is a schematic view of a first view structure of a serial port converter according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a second view structure of a serial port converter according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a third view structure of a serial port converter according to an embodiment of the present invention.

The labels in the figure are:

1. a housing; 2. a fixing member; 3. an antenna; 4. an antenna aperture baffle; 5. a power interface lead sealing cover; 6. a communication interface lead sealing cover; 7. a factory reset button; 8. restarting a reset button; 9. an indicator light;

11. an antenna aperture; 12. a power interface; 13. a communication interface; 14. sealing the lead hole; 15. a card slot; 16. a guide rail groove; 17. an RJ45 network port; 18. a fixing buckle; 19. a clamping block; 21. a spring plate, 22 and a pull ring; 23. abutting against the end.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, a first feature "on," "above," and "over" a second feature includes a first feature directly above and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. "beneath," "under," and "under" a first feature includes a first feature that is directly under and obliquely below a second feature, or simply means that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1, the present embodiment provides a serial port converter, which includes a casing 1 and a power interface 12, wherein the casing 1 is in a ladder shape, and at least three steps are arranged from top to bottom, and the width of the casing 1 is 18mm to 36 mm. The power interface 12 is disposed on the step at the bottom of the housing 1, an ac-to-dc module is disposed inside the housing 1, and the power interface 12 is electrically connected to the ac-to-dc module, so that the power interface 12 can receive dc and ac.

The serial ports converter that this embodiment provided sets up to at least three ladder from top to bottom through with casing 1, with power source and various communication interface rational arrangement on at least three ladder, sets up casing 1's width for 18mm ~ 36mm to reduce the occupation space of serial ports converter on the guide rail. The alternating current-to-direct current module is arranged in the shell 1, the mains supply can be directly connected, the cost of the power adapter is saved, the power interface 12 is arranged on the step at the lowest part, and wiring is more convenient.

In the present embodiment, the housing 1 includes three steps, which are a first step, a second step, and a third step, respectively. The first ladder is located the top of casing 1, and the third ladder is located the bottom of casing 1, and the second ladder is located between first ladder and the third ladder. The width of the housing 1 is 27.5mm, the length of the first step is 43.89mm, and the height of the housing 1 is 60.95 mm. The PZ30 series terminal combined distribution box conforms to the standards of GB7251.1 and JB/T7121 modular terminal combined electrical appliances and is widely applied to high-rise buildings, hotels, residences, stations, ports, airports, hospitals, movie theaters, large commercial networks, industrial and mining enterprises and the like. When the serial port converter is installed on a PZ30 series distribution box for use, the upper surface of a first step is positioned right ahead, the first step is matched with an opening of the distribution box, the height of the opening of the distribution box is 47mm, and the length of the first step is smaller than that of the opening of a common distribution box; the depth of block terminal is 62mm, and the height of casing 1 is less than the depth of block terminal. The serial port converter provided by the embodiment completely meets the installation requirement of a combined distribution box of a PZ30 series terminal, can be directly embedded into and installed in the combined distribution box of a PZ30 series terminal, is attractive and atmosphere after installation, and is practical and convenient.

Optionally, the voltage range of the power interface 12 for accessing alternating current is 100V to 400V, and the voltage range for accessing direct current is 9V to 50V. In this embodiment, the power interface 12 is a two-hole wiring terminal, the two-hole wiring terminal is located on the side surface of the third step, the two-hole wiring terminal can be connected with 100-400V alternating current or 9-50V direct current, the two-hole wiring terminal is located below the shell 1 to ensure the reliability of power wiring during installation, and is convenient for maintenance personnel to check the power supply reliability in the later period, if the two-hole wiring terminal is located above the shell 1, due to the fact that a wire is located in a hole site due to gravity, the unreliable wiring may cause the power to be on and off when the power supply is turned on, and the problem is inconvenient to check; meanwhile, most of power supply inlet wire ends of electric meters and guide rail equipment on the market are located at the lower end of a product, so that the electric meters and the guide rail equipment are convenient and compatible in wiring. The serial port converter provided by the embodiment has wider alternating current and direct current voltage ranges, can meet the scene requirements of industrial users of 380V, and has better compatibility.

Alternatively, two voltage recognition circuits capable of recognizing a direct current voltage of 9V to 15V and a direct current voltage of 15V to 50V, respectively, are provided inside the housing 1. When the input direct current voltage is 9V-15V, the direct current voltage is recognized by hardware and then is output in 9V-15V, and voltage reduction is not generated. When the input direct-current voltage is 15V-50V, the direct-current voltage is recognized by hardware and then is changed into 13V output, and the voltage is reduced to protect the power supply end of a product. It should be noted that the voltage identification circuit is already the prior art, and is not described herein again.

In this embodiment, the housing 1 is further provided with an RJ45 net port 17, and the RJ45 net port 17 is located at the side of the second ladder, and it is convenient to insert a net cable at this position.

Optionally, the housing 1 is further provided with a card slot 15, a factory reset button 7, a reset button 8 and an indicator lamp 9, and the card slot 15, the factory reset button 7, the reset button 8 and the indicator lamp 9 are all arranged on the uppermost ladder. In this embodiment, draw-in groove 15 is located the third ladder, installs behind block terminal guide rail or switch board, is in dead ahead, makes things convenient for dismouting SIM card and the insertion state of judging the SIM card. The factory resetting button 7 is located on the third step, and is for convenience of operation of factory resetting parameters or special functions of certain models (for example, WiFi smart link distribution network functions) after the product is installed. Restart reset button 8 and be located the third ladder, also reset it after for the convenience product installation, reset in other words, the outage, and it can be inconvenient that the line need be twisted to the main consideration product outage, can make things convenient for a lot through the button operation. The four indicator lights 9 are positioned on the third ladder, so that the running state, the communication state and the like of the product can be found on the front surface after the product is installed and run conveniently.

In this embodiment, the side of the housing 1 is further provided with a fixing buckle 18, and the housing 1 is locked with the back plate of the distribution box through the fixing buckle 18, so that the assembly and production are more convenient.

Optionally, as shown in fig. 2, an antenna hole 11 is further provided on the housing 1, and the antenna hole 11 is located on the lowermost step. In this embodiment, antenna hole 11 is located the side of first ladder, and antenna 3 sets up in antenna hole 11, and the vertical upward installation of serial ports converter, antenna 3 are located the top, conveniently twist and get, also prevent simultaneously that vibrations from dropping.

Optionally, an antenna hole baffle 4 is further disposed on the housing 1. The antenna hole baffle 4 is designed for being compatible with the shell of two products, namely the antenna 3 and the non-antenna 3, and is convenient to produce and stock.

Optionally, a communication interface 13 is further disposed on the housing 1, the communication interface 13 is located on a middle step, and the communication interface 13 is a three-hole connection terminal. In this embodiment, the communication interface 13 is located on the side of the second step and on the opposite side of the RJ45 port 17. The three-hole wiring terminal is positioned on the second ladder, so that a cable can conveniently pass through the second ladder, and signal interference caused by a short distance with the antenna 3 is avoided; the terminal adopts three holes to make the RS485 and RS232 all can carry out the wiring through this department, accomplishes the appearance unification.

Optionally, the serial port converter further includes a lead cover for protecting the power interface 12 and the communication interface 13. In this embodiment, the screws at the power interface 12 and the communication interface 13 are protected by lead covers to prevent private disassembly, and the metal part at the strong electric end can also be protected to prevent false touch. The power interface lead sealing cover 5 is matched with the power interface 12, a support column is arranged on the plane of a third step of the shell 1, a lead sealing hole 14 is formed in the support column, the power interface lead sealing cover 5 penetrates through the support column to be matched with the third step, and then the power interface lead sealing cover 5 and the shell 1 are locked through a lead sealing rope. The communication interface lead sealing cover 6 is matched with the communication interface 13, a support is also arranged on the plane of the second ladder of the shell 1, a lead sealing hole 14 is arranged on the support, the communication interface lead sealing cover 6 penetrates through the support to be matched with the second ladder, and the communication interface lead sealing cover 6 and the shell 1 are locked through a lead sealing rope.

Alternatively, as shown in fig. 3, the bottom of the housing 1 is provided with a rail groove 16, and the rail groove 16 is engaged with the rail. Specifically, the fixing member 2 is disposed on one side of the guide rail groove 16, and the fixing member 2 is slidably disposed on the housing 1 and can abut against the guide rail to fix the housing 1 on the guide rail. One end of the fixing member 2 is further provided with a pulling loop 22, and the pulling loop 22 protrudes out of one side of the housing 1. In this embodiment, a sliding groove is provided on the housing 1 on one side of the rail groove 16, and sliding ways are provided on both sides of the fixing member 2, and the sliding ways cooperate with the sliding groove to enable the fixing member 2 to slide on the housing 1. One end of the fixing piece 2 close to the guide rail groove 16 is provided with a butt end 23, the other end of the fixing piece is provided with a pull ring 22, the middle of the fixing piece is provided with two elastic sheets 21, the shell body 1 is provided with a clamping block 19, the fixing piece 2 slides, and the clamping block 19 is clamped by the two elastic sheets 21, so that the butt end 23 is abutted against the guide rail, and the shell body 1 is fixed on the guide rail. When the serial port converter needs to be taken down from the guide rail, a straight screwdriver can be adopted to be inserted into the pull ring 22, the fixing piece 2 is pulled outwards, the two elastic sheets 21 are separated from the clamping block 19 under the action of external force, and therefore the serial port converter is taken down from the guide rail.

Preferably, the shell 1 is made of PC + ABS material, and reaches V-0 grade flame retardant rating. PC + ABS is a mixture of Polycarbonate and acrylonitrile-butadiene-styrene copolymer, is thermoplastic plastic which is formed by combining Polycarbonate (Polycarbonate) and polyacrylonitrile (ABS), combines the excellent characteristics of the two materials, and the moldability of the ABS material and the mechanical property, impact strength, temperature resistance, Ultraviolet (UV) resistance and the like of PC, and can be widely used on automobile internal parts, business machines, communication equipment, household appliances and lighting equipment. In this embodiment, the two elastic sheets 21 on the fixing member 2 are part of the housing 1, and are locked by utilizing the ductility and plasticity of the housing 1 itself.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A serial port converter, comprising:

the shell (1), the shell (1) is arranged in a ladder shape, at least three ladders are arranged from top to bottom, and the width of the shell (1) is 18-36 mm;

the power interface (12) is arranged on the step at the lowest part of the shell (1), an AC-to-DC module is arranged inside the shell (1), and the power interface (12) is electrically connected with the AC-to-DC module so that the power interface (12) can be connected with DC and AC;

the shell (1) is further provided with a communication interface (13), the communication interface (13) is positioned on the ladder in the middle, and the communication interface (13) is a three-hole wiring terminal;

the shell (1) is also provided with an antenna hole (11), and the antenna hole (11) is positioned on the lowest ladder;

still be provided with draw-in groove (15), resume to leave factory setting button (7), restart reset button (8) and pilot lamp (9) on casing (1), draw-in groove (15) resume to leave factory setting button (7) restart reset button (8) with pilot lamp (9) all set up in the top on the ladder.

2. The serial port converter according to claim 1, wherein the voltage range of the power interface (12) for accessing alternating current is 100V-400V, and the voltage range for accessing direct current is 9V-50V.

3. The serial port converter according to claim 1, characterized in that the bottom of the casing (1) is provided with a guide rail groove (16), and the guide rail groove (16) is clamped with a guide rail.

4. The serial port converter according to claim 3, characterized in that a fixing member (2) is disposed at one side of the guide rail groove (16), and the fixing member (2) is slidably disposed on the housing (1) and can abut against the guide rail to fix the housing (1) on the guide rail.

5. The serial port converter according to claim 4, characterized in that one end of the fixing member (2) is further provided with a pull ring, and the pull ring protrudes out of one side of the shell (1).

6. The serial port converter according to claim 1, characterized in that an antenna hole baffle (4) is further provided on the housing (1).

7. The serial port converter according to any of claims 1 to 6, further comprising a lead cover for protecting the power interface (12) and the communication interface (13).