CN204792788U - Electric leakage protection circuit - Google Patents
Electric leakage protection circuit Download PDFInfo
- Publication number
- CN204792788U CN204792788U CN201520476902.2U CN201520476902U CN204792788U CN 204792788 U CN204792788 U CN 204792788U CN 201520476902 U CN201520476902 U CN 201520476902U CN 204792788 U CN204792788 U CN 204792788U
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- China
- Prior art keywords
- circuit chip
- slide glass
- leakage protection
- packaging body
- protection circuit
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Abstract
The utility model discloses an electric leakage protection circuit contains: a packaging body, two slide glass islands, an earth leakage protection control circuit chip and a switch circuit chip, be provided with a plurality of pins on the packaging body, the slide glass island sets up in the packaging body, two slide glass island difference electric connection at least one in a plurality of pins, the earth leakage protection control circuit chip loads in one of them of two slide glass islands, earth leakage protection control circuit chip electric connection at least one in a plurality of pins and one of them of two slide glass islands, the switch circuit chip loads on wherein another on two slide glass islands, wherein another on at least one and two the slide glass islands of switch circuit chip electric connection in earth leakage protection control circuit chip, a plurality of pin.
Description
Technical field
The utility model relates to a kind of leakage protection circuit, particularly relates to a kind of leakage protection circuit by earth leakage protective control circuit chip and switching circuit integrated chip.
Background technology
Please refer to Fig. 1, Fig. 1 is existing leakage protection circuit structure chart.As shown in Figure 1, the leakage protection circuit 1 of prior art is made up of earth leakage protective control circuit chip 11 and packaging body 13, but leakage protection circuit can only detect the leakage current of whole alternating current transmission line, and control drive singal is provided, peripheral component is driven to carry out switch motion, itself do not have the ability of direct switch, but the carrying out collocation of the switching circuit 12 of needs and more peripheral component composition uses, so require that earth leakage protective device will have certain volume size, could assemble leakage protection circuit and a large amount of peripheral component, cost is also higher; Secondly, because the consistency fluctuation of peripheral component is comparatively large, also having problems with matching of control circuit, have impact on the consistency of integrated circuit, thus affect its performance.If be integrated into by peripheral component in a chip, there is again the problem that high-low pressure is incompatible, namely allowing to compatibility also can increase chip cost greatly, is unfavorable for the control of holistic cost.
Utility model content
Technical problem to be solved in the utility model there is provided a kind of leakage protection circuit, wherein, comprises:
One packaging body, is provided with multiple pin;
Two slide glass islands, are arranged in described packaging body, and described two slide glass islands are electrically connected at least one in described multiple pin respectively;
Earth leakage protective control circuit chip, be loaded into described two slide glass islands one of them on, described earth leakage protective control circuit chip is electrically connected at one of them of at least one and described two slide glass islands in described multiple pin; And
Switching circuit chip, is loaded on wherein another on described two slide glass islands, and described switching circuit chip is electrically connected at wherein another at least one and described two slide glass islands in described earth leakage protective control circuit chip, described multiple pin.
Above-mentioned leakage protection circuit, wherein, described earth leakage protective control circuit chip is at least one earth leakage protective control circuit chip.
Above-mentioned leakage protection circuit, wherein, described switching circuit chip is at least one switching circuit chip.
Above-mentioned leakage protection circuit, wherein, described packaging body is a plastic packaging body.
Above-mentioned leakage protection circuit, wherein, described multiple pin is arranged at a side of described packaging body.
Above-mentioned leakage protection circuit, wherein, described multiple pin is arranged at the symmetrical dual-side of described packaging body.
Above-mentioned leakage protection circuit, wherein, described multiple pin is arranged at described packaging body four side.
Archipelago multichip packaging structure of the present utility model is relative to its beneficial effect of prior art; earth leakage protective control circuit chip and switching circuit chip are assembled in a packaging body; be loaded on multiple slide glass island by control circuit chip and the chip that can substitute the switching circuit be made up of peripheral component; draw respectively by different pins, composition leakage protection circuit.Solve like this peripheral component many, take the problem that volume is large, high-low pressure is incompatible and cost is high, and by the mode of chip controls and screening, enhance control chip and peripheral components matching, improve the performance of overall leakage protection circuit.
Accompanying drawing explanation
Fig. 1 is existing leakage protection circuit structure chart;
Fig. 2 is leakage protection circuit structure chart of the present utility model;
Fig. 3 is the inner connection diagram of leakage protection circuit of the present utility model.
Wherein, Reference numeral
11,21: earth leakage protective control circuit chip
12: the switching circuit of peripheral component composition
13,23: packaging body
131,231: pin
24: slide glass island
25: switching circuit chip
26: lead-in wire
Embodiment
Below in conjunction with the drawings and specific embodiments, technical solutions of the utility model are described in detail, further to understand the purpose of this utility model, scheme and effect, but and are not used to limit the utility model.The quantity of the slide glass island in following examples, chip and pin is only an execution mode, and the utility model is not as limit.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is leakage protection circuit structure chart of the present utility model; Fig. 3 is the inner connection diagram of leakage protection circuit of the present utility model.As shown in Figures 2 and 3, leakage protection circuit of the present utility model comprises: packaging body 23, two slide glass island 24, earth leakage protective control circuit chip 21 and a switching circuit chip 25; Packaging body 23 is plastic packaging body, and the both sides of packaging body 23 are respectively arranged with multiple pin 231; Two slide glass islands 24 are arranged in packaging body 23; Earth leakage protective control circuit chip 21 is loaded in one of them of two slide glass islands 24, and earth leakage protective control circuit chip 21 is by being electrically connected at least one in multiple pin 231; Switching circuit chip 25 is loaded on wherein another on two slide glass islands 24, and switching circuit chip 25 is electrically connected at least one in earth leakage protective control circuit chip 21 and multiple pin 231.Wherein, two slide glass islands 24 are electrically connected at least one in multiple pin 231 respectively; Earth leakage protective control circuit chip 21 and switching circuit chip 25 are electrically connected at the slide glass island 24 carrying it accordingly.In the present embodiment, all connected by lead-in wire 26 between pin 231, slide glass island 24, earth leakage protective control circuit chip 21 and a switching circuit chip 25.
Above lifted embodiment is only and structure of the present utility model is described, the utility model also can have various embodiments, illustrates, and earth leakage protective control circuit chip 21 can be multiple earth leakage protective control circuit chips; Switching circuit chip 25 can be multiple switching circuit chip; On the side that pin 231 also can be arranged at packaging body 23 or four side.
Certainly; the utility model also can have other various embodiments; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the utility model.
Claims (7)
1. a leakage protection circuit, is characterized in that, comprises:
One packaging body, is provided with multiple pin;
Two slide glass islands, are arranged in described packaging body, and described two slide glass islands are electrically connected at least one in described multiple pin respectively;
Earth leakage protective control circuit chip, be loaded into described two slide glass islands one of them on, described earth leakage protective control circuit chip is electrically connected at one of them of at least one and described two slide glass islands in described multiple pin; And
Switching circuit chip, is loaded on wherein another on described two slide glass islands, and described switching circuit chip is electrically connected at wherein another at least one and described two slide glass islands in described earth leakage protective control circuit chip, described multiple pin.
2. leakage protection circuit as claimed in claim 1, it is characterized in that, described earth leakage protective control circuit chip is at least one earth leakage protective control circuit chip.
3. leakage protection circuit as claimed in claim 2 or claim 3, it is characterized in that, described switching circuit chip is at least one switching circuit chip.
4. leakage protection circuit as claimed in claim 3, it is characterized in that, described packaging body is a plastic packaging body.
5. leakage protection circuit as claimed in claim 4, it is characterized in that, described multiple pin is arranged at a side of described packaging body.
6. leakage protection circuit as claimed in claim 4, is characterized in that, described multiple pin is arranged at the symmetrical dual-side of described packaging body.
7. leakage protection circuit as claimed in claim 4, it is characterized in that, described multiple pin is arranged at described packaging body four side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520476902.2U CN204792788U (en) | 2015-07-03 | 2015-07-03 | Electric leakage protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520476902.2U CN204792788U (en) | 2015-07-03 | 2015-07-03 | Electric leakage protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792788U true CN204792788U (en) | 2015-11-18 |
Family
ID=54532783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520476902.2U Active CN204792788U (en) | 2015-07-03 | 2015-07-03 | Electric leakage protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204792788U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932490A (en) * | 2016-06-07 | 2016-09-07 | 西安交通大学 | MEMS switch based USB electric leakage protection chip |
| CN111244890A (en) * | 2020-02-24 | 2020-06-05 | 成都世纪天知科技有限公司 | Anti-creeping circuit for communication between chips |
-
2015
- 2015-07-03 CN CN201520476902.2U patent/CN204792788U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932490A (en) * | 2016-06-07 | 2016-09-07 | 西安交通大学 | MEMS switch based USB electric leakage protection chip |
| CN111244890A (en) * | 2020-02-24 | 2020-06-05 | 成都世纪天知科技有限公司 | Anti-creeping circuit for communication between chips |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |