Integrated USB-to-232 device

Abstract

The utility model relates to an integrated USB-to-232 device, belongs to the technical field of serial port communication, and solves the problems that in the prior art, when a signal fault occurs in a USB-to-232 device, a fault line is difficult to judge, and when a mainboard is maintained, a mainboard unit is difficult to disassemble. The integrated USB-to-232 device comprises a housing, a first baffle plate assembly, a second baffle plate assembly and a mainboard unit. The shell is of a cavity structure, the mainboard unit is arranged in the shell, one end of the mainboard unit is connected with the first baffle assembly, the other end of the mainboard unit is connected with the second baffle assembly, and the first baffle assembly and the second baffle assembly are connected with the shell. The mainboard unit is wrapped in a cavity of the shell, the mainboard unit is protected, the shell comprises an unlocking assembly, and the unlocking assembly comprises an outer frame, an unlocking block and a second spring. According to the utility model, fault lines can be rapidly judged, and the mainboard unit can be conveniently disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of serial communication, in particular to an integrated USB to 232 device. Background Art

[0002] With the continuous development of the electronics industry, especially with the rise of the Internet of Things, serial communication is still the main means of commissioning and an important communication method. Serial communication is an asynchronous communication that transmits data bit by bit. It can send data on one line while receiving data on another line. The main parameters include baud rate, data bit, stop bit and check bit.

[0003] The EIA RS-232 standard interface is one of the commonly used serial communication interface standards. It is a technical standard for serial binary data exchange interface jointly formulated by the Electronic Industries Association (EIA) of the United States, Bell System, modulator and demodulator manufacturers, and computer terminal manufacturers. The standard stipulates the use of a 25-pin DB-25 connector and specifies the signal definition and level of each pin. Later, IBM's PC simplified RS-232 to a DB-9 connector, which became the de facto standard.

[0004] In the prior art, USB to RS232 devices are often single-channel devices. One USB can only convert one RS232 interface. In order to meet the simultaneous use of multiple channels, multiple USB interfaces of the computer need to be occupied. Since the communication status display is not specified in the serial communication protocol, it is difficult to intuitively determine the cause of the communication failure and find the faulty line when communication fails. When signal transmission fails and the mainboard unit needs to be repaired or replaced, it is difficult to disassemble the mainboard unit. Utility Model Content

[0005] In view of the above analysis, the present invention aims to provide an integrated USB to 232 converter to solve the problem that it is difficult to identify the faulty circuit and to disassemble the mainboard unit when a fault occurs in the existing USB to 232 converter.

[0006] The purpose of this utility model is mainly achieved through the following technical solutions:

[0007] An integrated USB to 232 device comprises a housing, a first baffle assembly, a second baffle assembly and a mainboard unit; the housing is a cavity structure, the mainboard unit is arranged in the housing, one end of the mainboard unit is connected to the first baffle assembly, and the other end is connected to the second baffle assembly, the first baffle assembly and the second baffle assembly are respectively connected to the housing, the mainboard unit is arranged in the cavity of the housing, and the housing plays a protective role on the mainboard unit;

[0008] The housing includes an unlocking assembly, which includes an outer frame, an unlocking block and a second spring;

[0009] The first baffle assembly includes a first baffle, a first opening and a fixing member.

[0010] Furthermore, the shell also includes a fixing groove and a slide rail, the slide rail is arranged on the shell, the position of the slide rail corresponds to the fixing groove, the fixing groove cooperates with the fixing piece, the fixing piece is connected to the first baffle through a first spring, and when the fixing piece is in the fixing groove, it can fix the connection between the first baffle assembly and the shell.

[0011] Furthermore, the unlocking block is connected to the outer frame through the second spring, the shape and position of the unlocking block correspond to the fixed groove, and the unlocking block can move along the slide rail into the fixed groove. When the unlocking block moves along the slide rail, the slide rail squeezes the unlocking block, compresses the second spring, and the unlocking block retracts into the outer frame; when the unlocking block moves to the fixed groove, the second spring resets and drives the unlocking block to extend out of the outer frame and enter the fixed groove.

[0012] Furthermore, when the unlocking block is located in the fixing groove, the thrust provided by the second spring return to the unlocking block can enable the unlocking block to push the fixing member to compress the first spring, and cause the fixing member to move out of the fixing groove and retract into the first baffle.

[0013] Furthermore, the mainboard unit includes a mainboard, a first chip, a second chip, a first interface, a second interface, a signal light and a signal path, the first interface and the second interface are respectively arranged on both sides of the mainboard, the first interface corresponds to the first opening, and the mainboard is provided with fixing holes on one side of the first interface and one side of the second interface.

[0014] Furthermore, the first interface is a USB interface, the first interface is connected to the first chip, the first chip can convert USB into 4 serial port signals, the first chip is connected to the second chip through the signal path, the second chip can convert the serial port signal converted by the first chip into RS232 level, the 8 signal lights are connected to the signal path between the first chip and the second chip, and each of the signal lights corresponds to a transmission or receiving line of a serial port signal.

[0015] Furthermore, the second baffle assembly includes a second baffle, a second opening, a fastening screw and a second mainboard bracket, the second opening is on the second baffle, the second opening corresponds to the second interface, the fastening screw passes through the second baffle to connect the second baffle assembly to the outer shell, a second connecting hole is set on the second mainboard bracket, the second connecting hole corresponds to the fixing hole on one side of the second interface, and the bolt passes through the outer shell to connect the second connecting hole and the fixing hole.

[0016] Furthermore, the first baffle assembly also includes a first mainboard bracket, and a first connecting hole is provided on the first mainboard bracket. The first connecting hole is connected to the fixing hole on one side of the first interface by a screw.

[0017] Furthermore, it also includes a display panel, and the display panel is on the housing.

[0018] Furthermore, the display panel comprises a panel and a signal lamp hole, the panel is arranged on the housing, and the signal lamp hole is arranged on the panel.

[0019] The beneficial effects of the above scheme are as follows:

[0020] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0021] 1. The integrated USB to 232 device provided in this embodiment forms a protective housing through the arrangement of the housing, the first baffle assembly and the second baffle assembly, thereby reducing electrostatic interference and improving the stability of the device;

[0022] 2. The device can be used in multiple ways at the same time by setting the motherboard unit, without occupying other USB interfaces of the computer, and can meet the needs of converting multiple serial port communications of the computer USB interface;

[0023] 3. The signal light can be used to observe the receiving and sending status of each group of serial port communications, so as to determine the faulty line;

[0024] 4. The unlocking component can be set to quickly and conveniently disassemble the motherboard unit, making it easier to repair and replace the motherboard unit.

[0025] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can be obvious from the description or understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0027] Figure 1 This is a schematic diagram of the overall structure of the integrated USB to 232 device of the utility model;

[0028] Figure 2 This is a structural schematic diagram of the mainboard unit of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the first baffle assembly of the utility model;

[0030] Figure 4 It is a longitudinal cross-sectional view of the connection between the fixing member and the first baffle of the utility model;

[0031] Figure 5 It is a schematic diagram of the structure of the housing of the utility model;

[0032] Figure 6 It is a longitudinal cross-sectional view of the unlocking assembly of the utility model;

[0033] Figure 7 It is a structural schematic diagram of the second baffle of the utility model.

[0034] Reference numerals:

[0035] 1-housing; 12-unlocking assembly; 121-outer frame; 122-anti-slip pad; 123-unlocking block; 124-second spring; 13-fixing groove; 14-slide rail; 2-display panel; 21-panel; 22-signal lamp hole; 3-first baffle assembly; 31-first baffle; 32-first opening; 33-fixing piece; 331-first spring; 34-first motherboard bracket; 341-first connecting hole; 4-second baffle assembly; 41-second baffle; 42-second opening; 43-fastening screw; 44-second motherboard bracket; 441-second connecting hole; 442-bolt; 5-motherboard unit; 51-motherboard; 511-fixing hole; 52-first chip; 53-second chip; 54-first interface; 55-second interface; 56-signal lamp; 57-signal path. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0037] A specific embodiment of the utility model is as follows Figure 1-2As shown, an integrated USB to 232 device is disclosed, including a shell 1, a display panel 2, a first baffle assembly 3, a second baffle assembly 4 and a mainboard unit 5; the shell 1 is a cavity structure, the mainboard unit 5 is arranged in the shell 1, one end of the mainboard unit 5 is connected to the first baffle assembly 3, and the other end is connected to the second baffle assembly 4, the first baffle assembly 3 and the second baffle assembly 4 are respectively connected to the shell 1, the mainboard unit 5 is wrapped in the cavity of the shell 1, and the mainboard unit 5 is protected, the display panel 2 is arranged on the shell 1, and the display panel 2 is used to indicate the sending and receiving status of each group of serial port communications.

[0038] like Figure 2 As shown, the mainboard unit 5 includes a mainboard 51, a first chip 52, a second chip 53, a first interface 54, a second interface 55, a signal light 56 ​​and a signal path 57. The first interface 54 and the second interface 55 are respectively arranged on both sides of the mainboard 51. The mainboard 51 is provided with fixing holes 511 on one side of the first interface 54 and one side of the second interface 55. The number of the fixing holes 511 is multiple. The first interface 54 is a USB interface. The first interface 54 is connected to the first chip 52. The first chip 52 can convert the USB into 4 serial port signals. Exemplarily, the model of the first chip 52 is CH9344; the first chip 52 is connected to the second chip 53 through the signal path 57. The second chip 53 can convert the serial port signal converted by the first chip 52 into the RS232 level. Exemplarily, the model of the second chip 53 is MAX208; the second chip 53 is connected to the second interface 55. The second interface 55 is an RS232 interface. The second interface 55 can be connected to an RS232 device. There are eight signal lights 56, which are connected to the main board 51. The eight signal lights 56 are connected to the signal path 57 between the first chip 52 and the second chip 53. Each signal light 56 ​​corresponds to a transmission or receiving line of a serial port signal. When the serial port signal transmission is normal, the signal light 56 ​​is always on. When the line where the signal light 56 ​​is located is abnormal, the signal light 56 ​​goes out, so that the abnormal line can be quickly determined.

[0039] like Figure 1 As shown, the display panel 2 includes a panel 21 and a signal light hole 22. The panel 21 is set on the housing 1, and the signal light hole 22 is set on the panel 21. The signal light hole 22 is adapted to the position of the signal light 56. The state of the signal light 56 ​​can be observed through the display panel 2, and then the signal transmission status of each line can be judged.

[0040] like Figure 3As shown, the first baffle assembly 3 includes a first baffle 31, a first opening 32, a fixing member 33 and a first mainboard bracket 34. The first opening 32 is provided on the first baffle 31. The position of the first opening 32 corresponds to the first interface 54. The USB device can be connected to the first interface 54 through the first opening 32. The first mainboard bracket 34 is connected to the first baffle 31. A first connecting hole 341 is provided on the first mainboard bracket 34. The first connecting hole 341 corresponds to the fixing hole 511 on one side of the first interface 54. The first connecting hole 341 is connected to the fixing hole 511 by screws, so that the mainboard 51 is fixed to the first mainboard bracket 34. The fixing member 33 is provided on the first baffle 31. The number of the fixing members 33 is multiple, such as Figure 4 As shown, the fixing member 33 is connected to the first baffle 31 via a first spring 331 , and the fixing member 33 is used to connect and disassemble the first baffle assembly 3 to the housing 1 .

[0041] Preferably, a pull ring is provided on the first baffle plate 31 to facilitate the movement of the first baffle plate assembly 3 , thereby facilitating the separation of the first baffle plate assembly 3 from the housing 1 .

[0042] like Figure 1 and Figure 5 As shown, an unlocking assembly 12, a fixing groove 13 and a slide rail 14 are provided on the housing 1. There are multiple fixing grooves 13. The fixing groove 13 cooperates with the fixing member 33. When the fixing member 33 is in the fixing groove 13, the first baffle assembly 3 is fixed to the housing 1. The slide rail 14 is provided on the housing 1. The position of the slide rail 14 corresponds to the fixing groove 13. The unlocking assembly 12 is connected to the housing 1 through the slide rail 14. The unlocking assembly 12 can slide along the slide rail 14 into the fixing groove 13.

[0043] like Figure 5-6 As shown, the unlocking assembly 12 includes an outer frame 121, an anti-slip pad 122, an unlocking block 123 and a second spring 124. The anti-slip pad 122 is arranged on both sides of the outer frame 121 to increase the friction between the outer frame 121 and the palm, so as to facilitate the movement of the unlocking assembly 12; the unlocking block 123 is connected to the outer frame 121 through the second spring 124, and the number of the unlocking blocks 123 is multiple. The shape and position of the unlocking block 123 correspond to the fixed groove 13. The unlocking block 123 can be retracted into the outer frame 121 by compressing the second spring 124, and the unlocking block 123 can move along the slide rail 14, so that the unlocking assembly 12 moves along the slide rail to the fixed groove 13. When the unlocking block 123 contacts the slide rail 14, the slide rail 14 squeezes the unlocking block 123, compressing the second spring 124 and retracting the unlocking block 123 into the outer frame 121. When the unlocking block 123 moves to the fixed groove 13, the second spring 124 resets and drives the unlocking block 123 to extend out of the outer frame 121 and enter the fixed groove 13.

[0044] It can be understood that the thrust provided by the second spring 124 to reset the unlocking block 123 can enable the unlocking block 123 to push the fixing member 33 to compress the first spring 331, and move the fixing member 33 out of the fixing groove 13 and retract into the first baffle 31. Exemplarily, the elastic modulus of the second spring 124 is 2 to 4 times the elastic modulus of the first spring 331.

[0045] like Figure 7 As shown, the second baffle assembly 4 includes a second baffle 41, a second opening 42, a fastening screw 43 and a second mainboard bracket 44. The second opening 42 is on the second baffle 41. The second opening 42 cooperates with the second interface 55, so that the RS232 device can be connected to the second interface 55 through the second opening 42. The fastening screw 43 passes through the second baffle 41 to connect the second baffle assembly 4 to the shell 1. A second connecting hole 441 is set on the second mainboard bracket 44. The second connecting hole 441 corresponds to the fixing hole 511 on one side of the second interface 55. The bolt 442 passes through the shell 1 and is connected to the second connecting hole 441 and the fixing hole 511 to connect the mainboard 11 to the second baffle 41.

[0046] When the mainboard unit 5 needs to be repaired or replaced, the bolt 442 is rotated to release the connection between the mainboard unit 5 and the second baffle assembly 4, and the unlocking assembly 12 is moved along the slide rail 14 to move the unlocking assembly 12 to the fixing groove 13. The unlocking block 123 pushes the fixing member 33 under the action of the second spring 124, so that the fixing member 33 squeezes the first spring 331 and retracts into the first baffle 31 from the fixing groove 13, thereby releasing the connection between the first baffle assembly 3 and the housing 1, taking out the first baffle assembly 3, and connecting the first baffle assembly 3 to the mainboard unit 5, so that the mainboard unit 5 can be repaired or replaced.

[0047] Compared with the prior art, the integrated USB to 232 device provided in this embodiment forms a protective shell through the setting of the shell 1, the first baffle assembly 3 and the second baffle assembly 4, which reduces electrostatic interference and improves the stability of the device; the setting of the mainboard unit 5 enables the device to be used in multiple channels at the same time without occupying other USB interfaces of the computer, and can meet the needs of the computer USB interface to convert multiple serial port communications; the signal light 56 ​​can be used to observe the receiving and sending status of each group of serial port communications, so as to determine the faulty line; the unlocking component 12 can be used to quickly and conveniently disassemble the mainboard unit 5, which is convenient for repair and replacement of the mainboard unit 5.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated USB to 232 device, characterized in that: The invention comprises a housing (1), a first baffle assembly (3), a second baffle assembly (4) and a mainboard unit (5); the housing (1) is a cavity structure, the mainboard unit (5) is arranged in the housing (1), one end of the mainboard unit (5) is connected to the first baffle assembly (3), and the other end is connected to the second baffle assembly (4); the first baffle assembly (3) and the second baffle assembly (4) are respectively connected to the housing (1), the mainboard unit (5) is arranged in the cavity of the housing (1), and the housing (1) plays a protective role on the mainboard unit (5); The housing (1) comprises an unlocking assembly (12), wherein the unlocking assembly (12) comprises an outer frame (121), an unlocking block (123) and a second spring (124); The first baffle assembly (3) comprises a first baffle (31), a first opening (32) and a fixing member (33).

2. The integrated USB to 232 device according to claim 1, characterized in that: The housing (1) further comprises a fixing groove (13) and a slide rail (14); the slide rail (14) is arranged on the housing (1); the position of the slide rail (14) corresponds to the fixing groove (13); the fixing groove (13) cooperates with the fixing member (33); the fixing member (33) is connected to the first baffle (31) via a first spring (331); when the fixing member (33) is in the fixing groove (13), the connection between the first baffle assembly (3) and the housing (1) can be fixed.

3. The integrated USB to 232 device according to claim 2, characterized in that: The unlocking block (123) is connected to the outer frame (121) through the second spring (124); the shape and position of the unlocking block (123) correspond to the fixed groove (13); the unlocking block (123) can move along the slide rail (14) into the fixed groove (13); when the unlocking block (123) moves along the slide rail (14), the slide rail (14) presses the unlocking block (123) to compress the second spring (124), and the unlocking block (123) retracts into the outer frame (121); when the unlocking block (123) moves to the fixed groove (13), the second spring (124) resets and drives the unlocking block (123) to extend out of the outer frame (121) and enter the fixed groove (13).

4. The integrated USB to 232 device according to claim 3, characterized in that: When the unlocking block (123) is located in the fixing groove (13), the thrust provided by the second spring (124) to the unlocking block (123) when it is reset can enable the unlocking block (123) to push the fixing member (33) to compress the first spring (331), and enable the fixing member (33) to move out of the fixing groove (13) and retract into the first baffle (31).

5. The integrated USB to 232 device according to claim 1, characterized in that: The mainboard unit (5) comprises a mainboard (51), a first chip (52), a second chip (53), a first interface (54), a second interface (55), a signal lamp (56) and a signal path (57); the first interface (54) and the second interface (55) are respectively arranged on both sides of the mainboard (51); the first interface (54) corresponds to the first opening (32); and the mainboard (51) is provided with fixing holes (511) on one side of the first interface (54) and on one side of the second interface (55).

6. The integrated USB to 232 device according to claim 5, characterized in that: The first interface (54) is a USB interface. The first interface (54) is connected to the first chip (52). The first chip (52) can convert USB into four serial port signals. The first chip (52) is connected to the second chip (53) via the signal path (57). The second chip (53) can convert the serial port signals converted by the first chip (52) into RS232 level. The eight signal lights (56) are connected to the signal path (57) between the first chip (52) and the second chip (53). Each of the signal lights (56) corresponds to a transmission or reception line of a serial port signal.

7. The integrated USB to 232 device according to claim 6, characterized in that: The second baffle assembly (4) comprises a second baffle (41), a second opening (42), a fastening screw (43) and a second mainboard bracket (44); the second opening (42) is on the second baffle (41); the second opening (42) corresponds to the second interface (55); the fastening screw (43) passes through the second baffle (41) to connect the second baffle assembly (4) to the housing (1); a second connecting hole (441) is provided on the second mainboard bracket (44); the second connecting hole (441) corresponds to the fixing hole (511) on one side of the second interface (55); the bolt (442) passes through the housing (1) to connect the second connecting hole (441) and the fixing hole (511).

8. The integrated USB to 232 device according to claim 7, characterized in that: The first baffle assembly (3) further comprises a first mainboard bracket (34), the first mainboard bracket (34) being provided with a first connection hole (341), the first connection hole (341) being connected to the fixing hole (511) on one side of the first interface (54) by means of screws.

9. The integrated USB to 232 device according to any one of claims 1 to 8, characterized in that: The integrated USB to 232 device further comprises a display panel (2), wherein the display panel (2) is on the housing (1).

10. The integrated USB to 232 device according to claim 9, characterized in that: The display panel (2) comprises a panel (21) and a signal lamp hole (22); the panel (21) is arranged on the housing (1); and the signal lamp hole (22) is arranged on the panel (21).

Images