CN202872755U - Non-polar RS485 communication integrated circuit - Google Patents
Non-polar RS485 communication integrated circuit Download PDFInfo
- Publication number
- CN202872755U CN202872755U CN 201220409772 CN201220409772U CN202872755U CN 202872755 U CN202872755 U CN 202872755U CN 201220409772 CN201220409772 CN 201220409772 CN 201220409772 U CN201220409772 U CN 201220409772U CN 202872755 U CN202872755 U CN 202872755U
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Abstract
The utility model discloses a non-polar RS485 communication integrated circuit, and pertains to the technical field of electrical appliances. The non-polar RS485 communication integrated circuit comprises a chip shell; the chip shell comprises an upper plastic-package IC shell and a lower plastic-package IC shell which are mutually matched for connection; a chip internal control circuit module is arranged between the upper plastic-package IC shell and the lower plastic-package IC shell in a matching way; a group of metal pins are arranged on the lower plastic-package IC shell in a matching way; and the metal pins are connected with the chip internal control circuit module. By means of the advanced production technology, the RS485 communication integrated circuit with non-polar communication output can be realized, the function of non-polar output can be realized, polarity of an external connection line does not need to be distinguished, the problem that operation can be carried out only when polarities fit can be avoided, and stable, reliable and successful communication can be achieved; and by adopting instruments and equipment of the chip communication disclosed by the utility model, the problem of identifying polarities does not exist during on-site construction of the communication line, multi-color lines are not needed, on-site construction and maintenance are convenient, cheap, high-efficiency and high-quality, and the non-polar RS485 communication integrated circuit is suitable for industrialized promotion and application.
Description
Technical field
The utility model belongs to electrification utensil technical field, is specifically related to a kind of reliable nonpolarity RS485 communication integrated chip of easy-to-connect, communication robust that can nonpolarity networking, and having changed needs the A mouth to the A mouth originally, the mode that the B mouth is connected with the B mouth.
Background technology
RS-485 is a kind of international serial communication standard, RS-485 bus communication pattern is widely used in the fields such as instrument and meter, the collecting and distributing control of intellectualized sensor, building control, monitoring alarm owing to have simple in structure, cheap, communication distance and the characteristics such as message transmission rate is suitable.But RS-485 chip communication pin have A, B polarity minute, communication pattern requires and must A-A, B-B connect, otherwise system can't work, this construction that brings in actual use the on-scene communication line with safeguard many troubles.Particularly China's intelligent power network construction needs 485 a large amount of interface ammeters now, in the construction of national grid power information acquisition system all is to adopt RS485 communication modes, 485 conventional chips of employing to exist the identification problem of order wire polarity.Finding not gather 30% of information in the acquisition system all is because the reverse polarity connection problem of RS485 connecting line.
The utility model content
For the above-mentioned problems in the prior art, the purpose of this utility model is to provide a kind of reliable nonpolarity RS485 communication integrated chip of easy-to-connect, communication robust that can nonpolarity networking, having changed needs the A mouth to the A mouth originally, the mode that the B mouth is connected with the B mouth.
Described a kind of nonpolarity RS485 communication IC, comprise the chip housing, described chip housing comprises upper Plastic IC Packages shell and the lower Plastic IC Packages housing that cooperatively interacts and connect, it is characterized in that being equipped with chip internal control circuit module between described upper Plastic IC Packages shell and the lower Plastic IC Packages housing, be equipped with one group of metal pins on the lower Plastic IC Packages housing, described metal pins is connected with chip internal control circuit module.
Described a kind of nonpolarity RS485 communication IC, it is characterized in that described metal pins comprises that connecting metal pins I that the external circuit information of carrying out receives control is connected with the metal pins II and connects external circuit and carry out metal pins III and the metal pins IV that information sends control, the metal pins VI of carrying out nonpolarity communication is connected metal pins V and the metal pins VIII that connects external power source with the metal pins VII.
The utility model is by adopting technique scheme, utilize advanced production technology to realize the RS485 communication IC of communication output non-polarity, realized nonpolarity output function, need not distinguish the polarity of external connection line, avoided just workable problem of polarity counterpart, communication success that can be reliable and stable, adopt instrument, the equipment of the utility model chip communication, there is not the polarity identification problem in the site operation of communication line, does not need the polychrome line, to make site operation and easy to maintenance, cheap, efficient and high-quality, be suitable for industrial application.
Description of drawings
Fig. 1 is vertical view structural representation of the present utility model;
Fig. 2 is the inner Split type structure schematic diagram of the utility model front view.
Among the figure: 1-metal pins I, 2-metal pins II, 3-metal pins III, 4-metal pins IV, 5-metal pins V, 6-metal pins VI, 7-metal pins VII, 8-metal pins VIII, the upper Plastic IC Packages shell of 9-, 10-chip internal control circuit module, Plastic IC Packages housing under the 11-.
Embodiment
Below in conjunction with Figure of description the utility model is further described:
Shown in Fig. 1-2, a kind of nonpolarity RS485 communication IC, comprise the chip housing, described chip housing comprises the upper Plastic IC Packages shell 9 and lower Plastic IC Packages housing 11 that cooperatively interacts and connect, be equipped with chip internal control circuit module 10 between described upper Plastic IC Packages shell 9 and the lower Plastic IC Packages housing 11, be equipped with one group of metal pins that is connected with chip internal control circuit module 10 on the lower Plastic IC Packages housing 11, comprise that connecting external circuit carries out metal pins I 1 and the metal pins II 2 that information receives control, connect external circuit and carry out metal pins III 3 and the metal pins IV 4 that information sends control, carry out metal pins VI 6 and the metal pins VII 7 of nonpolarity communication, the metal pins V 5 and the metal pins VIII 8 that connect external power source.
Chip internal control circuit module 10 is fixed in lower Plastic IC Packages housing 11 and the upper Plastic IC Packages shell 9,8 above-mentioned metal pins are connected with chip internal control circuit module 10, are connected the connection external power source with the metal pins VIII to chip power supply of the present utility model by metal pins V 5, utilizing 10 pairs of metal pins I 1 of chip internal control circuit module and metal pins II 2 to control the external circuit information of carrying out receives, send by metal pins III 3 and the metal pins IV 4 control external circuit information of carrying out, carry out nonpolarity communication by metal pins VI 6 and metal pins VII 7.
The utility model is by the setting of circuit, realized nonpolarity output, external connection line is no matter be A-A mouth corresponding to polarity, the A-B mouth that B-B mouth or polarity are not corresponding, B-A mouth, communication success that can be reliable and stable, adopt instrument, the equipment of this utility model chip communication, the site operation of communication line will not have the polarity identification problem, will not need the polychrome line, will make site operation and easy to maintenance, cheap, efficient and high-quality, will be the upgraded product of RS-485 chip.
Claims (2)
1. nonpolarity RS485 communication IC, comprise the chip housing, described chip housing comprises the upper Plastic IC Packages shell (9) and lower Plastic IC Packages housing (11) that cooperatively interacts and connect, it is characterized in that being equipped with chip internal control circuit module (10) between described upper Plastic IC Packages shell (9) and the lower Plastic IC Packages housing (11), be equipped with one group of metal pins on the lower Plastic IC Packages housing (11), described metal pins is connected with chip internal control circuit module (10).
2. a kind of nonpolarity RS485 communication IC according to claim 1, it is characterized in that described metal pins comprises connects the metal pins I (1) that the external circuit information of carrying out receives control and is connected 2 with the metal pins II), connect external circuit and carry out metal pins III (3) and the metal pins IV (4) that information sends control, the metal pins VI (6) of carrying out nonpolarity communication is connected 7 with the metal pins VII), metal pins V (5) and the metal pins VIII (8) of connection external power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409772 CN202872755U (en) | 2012-08-18 | 2012-08-18 | Non-polar RS485 communication integrated circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409772 CN202872755U (en) | 2012-08-18 | 2012-08-18 | Non-polar RS485 communication integrated circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872755U true CN202872755U (en) | 2013-04-10 |
Family
ID=48039439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220409772 Expired - Fee Related CN202872755U (en) | 2012-08-18 | 2012-08-18 | Non-polar RS485 communication integrated circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202872755U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104765284A (en) * | 2015-02-04 | 2015-07-08 | 青岛鼎信通讯股份有限公司 | TC485N high-voltage nonpolarity self-voltage-stabilizing communication chip |
-
2012
- 2012-08-18 CN CN 201220409772 patent/CN202872755U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104765284A (en) * | 2015-02-04 | 2015-07-08 | 青岛鼎信通讯股份有限公司 | TC485N high-voltage nonpolarity self-voltage-stabilizing communication chip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG JINGHE ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JIAXING GUOKE JINGHE ELECTRON CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 314000 Tsinghua Research Institute of Yangtze River Delta, No. 705 Asia Pacific Road, Zhejiang, Jiaxing 16F Patentee after: Zhejiang Jing He Electronic Science and Technology Co., Ltd. Address before: 314000 Tsinghua Research Institute of Yangtze River Delta, No. 705 Asia Pacific Road, Zhejiang, Jiaxing 16F Patentee before: JIANGXING GUOKE JINGHE ELECTRONIC CO., LTD. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160323 Granted publication date: 20130410 Pledgee: Agricultural Bank of China Limited by Share Ltd Jiaxing science and Technology Branch Pledgor: Zhejiang Jing He Electronic Science and Technology Co., Ltd. Registration number: 2015990000169 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Non-polar RS485 communication integrated circuit Effective date of registration: 20160323 Granted publication date: 20130410 Pledgee: Agricultural Bank of China Limited by Share Ltd Jiaxing science and Technology Branch Pledgor: Zhejiang Jing He Electronic Science and Technology Co., Ltd. Registration number: 2016990000231 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20160323 Registration number: 2015990000169 Pledgee after: Agricultural Bank of China Limited by Share Ltd Jiaxing science and Technology Branch Pledgee before: The Agricultural Bank of Jiaxing branch of Limited by Share Ltd China garshin |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 314300 308 rooms, No. 382, No. 382, Asia Pacific Road, Nanhu District, Zhejiang Patentee after: Zhejiang Jing He Electronic Science and Technology Co., Ltd. Address before: 314000 Tsinghua Research Institute of Yangtze River Delta, No. 705 Asia Pacific Road, Zhejiang, Jiaxing 16F Patentee before: Zhejiang Jing He Electronic Science and Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20200818 |