CN216133169U - Switch with diagnosis function - Google Patents
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- CN216133169U CN216133169U CN202121834113.3U CN202121834113U CN216133169U CN 216133169 U CN216133169 U CN 216133169U CN 202121834113 U CN202121834113 U CN 202121834113U CN 216133169 U CN216133169 U CN 216133169U
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Abstract
The utility model discloses a switch with a diagnosis function, which comprises a switch, a first resistor, a first external circuit end and a second external circuit end, wherein the first resistor is arranged on the switch; the switch and the first resistor are connected in parallel to form a switch circuit, and the first external circuit end and the second external circuit end are two ends of the switch circuit and are connected to the external circuit; resistance measuring equipment is arranged between the first external circuit end and the second external circuit end; the first resistor is short-circuited or closed through the switch, and the resistance change value in the process is measured to diagnose whether the switch is intact or not; by increasing the resistance difference between the first resistor and the second resistor, the resistance change can be more obviously found when the resistance measuring equipment is observed, and a plurality of switch circuits can be diagnosed according to specific resistance difference values.
Description
Technical Field
The utility model relates to the technical field of circuit diagnosis, in particular to a switch with a diagnosis function.
Background
In the practical application of various simple and complex circuit designs, electrical appliances, switches and resistors are very important electrical appliance elements, and the finally formed working condition is very complex due to the fact that the practical application relates to different scenes and environments; if the circuit has problems, the maintenance of the circuit is very complicated and difficult, and certain requirements are also required for the professional ability and tools of maintenance personnel. Therefore, the design and optimization of the source circuit are an essential link; however, the current applied circuit design only considers integration and protection measures, self-detection of the circuit is not involved, and later-stage circuit maintenance is not convenient and guaranteed.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects in the prior art, the utility model provides the switch with the diagnosis function, which can automatically detect the problems in the circuit, and has the advantages of reliable and simple structure and convenient use.
The technical scheme is as follows: in order to achieve the above object, the switch with diagnostic function of the present invention comprises a switch, a first resistor, a first external line terminal and a second external line terminal; the switch and the first resistor are connected in parallel to form a switch circuit, and the first external circuit end and the second external circuit end are two ends of the switch circuit and are connected to the external circuit; and a resistance measuring device is arranged between the first external circuit end and the second external circuit end.
Further, in the switching circuit, a second resistor is connected in series to the switch and the first resistor.
Further, the first resistance is 22k Ω, and the second resistance is 680k Ω.
Further, the first resistance is 10k Ω.
Has the advantages that: the switch with the diagnosis function can automatically detect problems in a circuit, has a reliable and simple structure, is convenient to use, and comprises the following technical effects:
1) the first resistor is short-circuited or closed through the switch, and the resistance change value in the process is measured to diagnose whether the switch is intact or not;
2) by increasing the resistance difference between the first resistor and the second resistor, the resistance change can be more obviously found when the resistance measuring equipment is observed, and a plurality of switch circuits can be diagnosed according to specific resistance difference values.
Drawings
FIG. 1 is a circuit configuration diagram of a single resistor according to the present invention;
fig. 2 is a circuit configuration diagram of the present invention with a double resistor.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in the attached figures 1-2: a switch with a diagnosis function comprises a switch 1, a first resistor 2, a first external circuit end 3 and a second external circuit end 4; the switch 1 and the first resistor 2 are connected in parallel to form a switch circuit, and the first external circuit end 3 and the second external circuit end 4 are two ends of the switch circuit and are connected to an external circuit; a resistance measuring device is arranged between the first external circuit end 3 and the second external circuit end 4; the switch 1 is in a normally closed state, the first resistor 2 is in a short circuit, and the resistance value between the first external circuit end 3 and the second external circuit end 4 is the resistance value of the circuit; when the switch 1 is disconnected, the first resistor 2 is switched on, and the resistance value between the first external circuit end 3 and the second external circuit end 4 is the resistance value of the first resistor 2; therefore, when the switch 1 is damaged or is out of operation due to other reasons, the switch 1 can be judged whether to be in good condition or not through the resistance value change between the first external line end 3 and the second external line end 4, and the function of quickly diagnosing the circuit switch is realized.
In the switching circuit, a second resistor 21 is connected in series between the switch 1 and the first resistor 2; when the switch 1 is in a closed state, the second resistor 21 is in a short-circuit state, and the resistance value between the first external line terminal 3 and the second external line terminal 4 is the resistance value of the first resistor 2; when the switch 1 is turned off, the resistance between the first external line terminal 3 and the second external line terminal 4 is the sum of the resistances of the first resistor 2 and the second resistor 21; therefore, when the switch 1 is damaged or is out of operation due to other reasons, the switch 1 can be judged whether to be in good condition or not according to the resistance value change between the first external line end 3 and the second external line end 4, and the function of quickly diagnosing the circuit switch is realized.
The first resistor 2 is 22k omega, and the second resistor 21 is 680k omega; by increasing the resistance difference between the first resistor 2 and the second resistor 21, the resistance change can be more clearly found when observing the resistance measuring device, and a plurality of switch circuits can be diagnosed according to the specific resistance difference value.
The first resistor 2 is 10k omega; when the diagnosis switch circuit is only provided with one resistor, the resistance value of the resistor is set to 10k omega, and whether the circuit switch works normally can be judged according to the change of the resistance value.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model and these are intended to be within the scope of the utility model.
Claims (4)
1. A switch with diagnostic function, characterized in that: the circuit comprises a switch (1), a first resistor (2), a first external circuit end (3) and a second external circuit end (4); the switch (1) and the first resistor (2) are connected in parallel to form a switch circuit, and the first external circuit end (3) and the second external circuit end (4) are two ends of the switch circuit and are connected to an external circuit; and a resistance measuring device is arranged between the first external circuit end (3) and the second external circuit end (4).
2. The switch with diagnostic function of claim 1, wherein: in the switching circuit, a second resistor (21) is connected in series to the switch (1) and the first resistor (2).
3. The switch with diagnostic function of claim 2, wherein: the first resistor (2) is 22k omega, and the second resistor (21) is 680k omega.
4. The switch with diagnostic function of claim 1, wherein: the first resistor (2) is 10k omega.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121834113.3U CN216133169U (en) | 2021-08-06 | 2021-08-06 | Switch with diagnosis function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121834113.3U CN216133169U (en) | 2021-08-06 | 2021-08-06 | Switch with diagnosis function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216133169U true CN216133169U (en) | 2022-03-25 |
Family
ID=80769239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121834113.3U Active CN216133169U (en) | 2021-08-06 | 2021-08-06 | Switch with diagnosis function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216133169U (en) |
-
2021
- 2021-08-06 CN CN202121834113.3U patent/CN216133169U/en active Active
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