CN203241063U - Single-knife single-position normally-open reed switch sensor detection circuit - Google Patents
Single-knife single-position normally-open reed switch sensor detection circuit Download PDFInfo
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- CN203241063U CN203241063U CN 201320114983 CN201320114983U CN203241063U CN 203241063 U CN203241063 U CN 203241063U CN 201320114983 CN201320114983 CN 201320114983 CN 201320114983 U CN201320114983 U CN 201320114983U CN 203241063 U CN203241063 U CN 203241063U
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- pcb
- tongue tube
- circuit board
- tube sensor
- pcb circuit
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- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 235000014676 Phragmites communis Nutrition 0.000 title description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a normally open type tongue tube sensor detection circuitry is put to simplex sword list, includes tongue tube sensor, PCB circuit board and PCB circuit board socket, and the lead wire of tongue tube sensor one end is connected to the voltage end of PCB circuit board through PCB circuit board socket, and the lead wire of the tongue tube sensor other end divides into two strands and is connected to two detection mouths of singlechip MCU in the PCB circuit board through PCB circuit board socket respectively. The utility model avoids the potential safety hazard existing in the background technical proposal, overcomes the technical defect that the detection function is easy to lose, and brings great improvement on the service performance of the electric appliance under the condition of hardly increasing the cost; has strong practicability.
Description
Technical field
The utility model relates to the tongue tube sensor detection circuit.
Background technology
The tongue tube sensor is a kind of approach switch, existing tongue tube sensor consists of structure according to its inside, there is respectively the hilted broadsword list to put open type tongue tube sensor, hilted broadsword list and puts normally closed dry reed pipe sensor and the two type tongue tube sensors of putting of hilted broadsword, and because the price of rear two kinds of tongue tube tongue tube sensors is very expensive, therefore, being most widely used with the first tongue tube sensor.The hilted broadsword list is put open type tongue tube sensor, comprises tongue tube main body, the contact lead of holding make contact and the connector that is connected in lead terminal.Its work on hand principle is: general tongue tube is open type, when the magnet of cooperating with it to its near the time, the closed conducting of tongue tube inner contact, the operating circuit at its place switches to connected state thus; When magnet away from that time, the contact of tongue tube inside disconnects, the operating circuit at its place switches to off-state thus.
The tongue tube sensor is used for the switching signal testing circuit by a lot of electrical equipment or equipment, and its purposes is very extensive, for example, the liquid level induction, the folding signal of the lid of pressure cooker, the speed of treadmill detects, and elevator floor detects, and the switch of door detects etc.Traditional tongue tube sensor detection circuit is made of tongue tube sensor and PCB circuit board, the one end lead-in wire of tongue tube sensor is connected to the voltage end V of PCB circuit board by socket outlet, other end lead-in wire detects a mouthful IO by the switch that jack interface is connected to single-chip microprocessor MCU in the PCB circuit board, single-chip microprocessor MCU just detects the duty that the hilted broadsword list is put open type tongue tube sensor by IO mouth level, as shown in Figure 1, when the tongue tube sensor contact disconnects, J1 plug 1 position is not connected with 2 positions, the single-chip I/O mouth detected state is low, when the tongue tube sensor is closed, J1 plug 1 position is communicated with 2 positions, and the single-chip I/O mouth detected state is high.To be used for the automatic electric heating kettle as example, tongue tube sensing switch testing circuit can be for detection of whether water is arranged in the electric kettle, thereby the switch of control electric kettle, specifically, ball float rises when water is arranged, and the tongue tube sensor disconnects, and the single-chip I/O mouth detected state is low, this moment, expression had water, electric kettle automatically to begin to heat up water; Ball float falls when anhydrous, and the tongue tube sensor is closed, and the single-chip I/O mouth detected state is high, and represent anhydrous this moment, the electric kettle autoshutdown.But, if plug J1 is loosening, or coming off, this moment, single-chip I/O mouth still can detect low level, can be recognized as water state by mistake, if continue to heat up water, the danger of dry combustion method will occur.
Except above-mentioned example with electric kettle, among the application of other kinds large small electric apparatus, if connector occurs in assembling to be leaked slotting, or since other reasons cause connector to unclamp even come off, the tongue tube sensor detection circuit very easily can't detect due signal, cause machine works to be made mistakes, therefore there is the use potential safety hazard in existing tongue tube sensor detection circuit or causes easily the measuring ability forfeiture in application, and the space is significantly improved.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of hilted broadsword list and puts open type tongue tube sensor detection circuit, and it avoids the potential safety hazard that exists in the background technology, overcomes the defective of forfeiture measuring ability.
The technical scheme that the utility model technical solution problem adopts is: a kind of hilted broadsword list is put open type tongue tube sensor detection circuit, comprise tongue tube sensor, PCB circuit board and PCB PCB socket, the lead-in wire of tongue tube sensor one end is connected to the voltage end of PCB circuit board by the PCB PCB socket, and the lead-in wire of the tongue tube sensor other end is divided into two stocks and is not connected to two of single-chip microprocessor MCU in the PCB circuit board by the PCB PCB socket and detects mouthful.
When adopting technique scheme, further technical scheme below the utility model can also adopt or make up and adopt:
The PCB PCB socket is provided with the 3rd interface that second of single-chip microprocessor MCU in the second interface that first of single-chip microprocessor MCU in first interface, connection PCB circuit board of the voltage end of connection PCB circuit board detects mouthful and the connection PCB circuit board detects mouthful.
The lead-in wire of tongue tube sensor one end is connected to the first interface of PCB PCB socket by the first connecting line, and the first interface is connected to the voltage end of PCB circuit board.
The lead-in wire of the tongue tube sensor other end is divided in parallel two strands, and wherein one is connected to the second interface of PCB PCB socket by the second connecting line, and another strand is connected to the 3rd interface of PCB PCB socket by the 3rd connecting line.
The beneficial effects of the utility model are: tongue tube sensor detection circuit of the present utility model is put tongue tube sensor basis at two traditional line open type hilted broadsword lists increases a lead-in wire, access separately on any of socket, socket becomes 3PIN by original 2PIN, single-chip microcomputer increase an IO mouth for detection of, can judge whether tongue tube sensor and pcb board are connected intactly still to come off; The utility model is by improving being connected of existing tongue tube sensor and PCB circuit board, avoided the potential safety hazard of the scheme existence of background technology, overcome its easily technological deficiency of forfeiture measuring ability, in the situation that increases hardly cost, brought the significant improvement on the electrical equipment usability; Testing circuit of the present utility model can in time finish the work of circuit when detecting the tongue tube sensor success is not connected with circuit board, possess the actual application value of protecting machine, elevator system reliability, and very strong practicality is arranged.
Description of drawings
Fig. 1 is the structural representation of traditional tongue tube sensor detection circuit.
Fig. 2 is the structural representation of tongue tube sensor detection circuit provided by the utility model.
Embodiment
With reference to accompanying drawing 2, a kind of hilted broadsword list is put open type tongue tube sensor detection circuit, comprises tongue tube sensor 1, PCB circuit board 2 and PCB PCB socket 3.Two switches are set on the single-chip microprocessor MCU of PCB circuit board 2 detect mouthful IO_1 and IO_2.
PCB PCB socket 3 is provided with first of single-chip microprocessor MCU among the first interface 1P, connection PCB circuit board 2 of the cut-out switch S V of connection PCB circuit board 2 and detects the 3rd interface 3P that second of single-chip microprocessor MCU in the second interface 2P of mouthful IO_1 and the connection PCB circuit board 2 detects mouthful IO_2.
The lead-in wire of tongue tube sensor 1 one ends is connected to the first interface 1P of PCB PCB socket 3 by the first connecting line L1, and the first interface 1P is connected to the voltage end V of PCB circuit board 2.
The lead-in wire of tongue tube sensor 1 other end is divided in parallel two strands, and wherein one is connected to the second interface 2P of PCB PCB socket 3 by the second connecting line L2, and another strand is connected to the 3rd interface 3P of PCB PCB socket 3 by the 3rd connecting line L3; The second interface 2P connects first of single-chip microprocessor MCU and detects a mouthful IO_1, and the 3rd interface 3P connects second of single-chip microprocessor MCU and detects a mouthful IO_2.
When tongue tube sensor detection circuit of the present utility model is used for the switch detection of electrical equipment, take electric kettle as example, if tongue tube sensor 1 is connected with PCB circuit board 2 well, the second interface 2P is consistent with being connected of tongue tube sensor 1 with the 3rd interface 3P, the first detection mouthful IO_1 of single-chip microprocessor MCU and the detected state of the second detection mouthful IO_2 are consistent, ball float rose when electric kettle had water, the tongue tube sensor contact disconnects, first of single-chip microprocessor MCU detects mouthful IO_1 and the second state that detects mouthful IO_2 is low, electric kettle begins the work of heating up water, ball float fell when electric kettle was anhydrous, the tongue tube sensor gets an electric shock closed, first of single-chip microprocessor MCU detects mouthful IO_1 and the second state that detects mouthful IO_2 is height, and electric kettle stops the work of heating up water.
If tongue tube sensor 1 is connected loosening or comes off with PCB circuit board 2; the second interface 2P loses connection with the 3rd interface 3P; then second of single-chip microprocessor MCU the detection mouthful IO_2 detects and is low level; and the first detection mouthful IO_1 detection is high level; both level detection are inconsistent; can judge that tongue tube sensor 1 loses with PCB circuit board 2 and be connected this moment; when the detection level of the first detection mouthful IO_1 and the second detection mouthful IO_2 is inconsistent; the automatic cutout of tongue tube sensor detection circuit; thereby be implemented in when the tongue tube sensor is not successful not to be connected with the PCB circuit board; can in time finish the work of circuit, possess the protection machine; the actual application value of elevator system reliability.
Number in the figure R1 is the resistance of PCB circuit board 2, and C1 is for being the electric capacity of PCB circuit board 2.
Claims (4)
1. a hilted broadsword list is put open type tongue tube sensor detection circuit, comprise tongue tube sensor (1), PCB circuit board (2) and PCB PCB socket (3), it is characterized in that: the lead-in wire of tongue tube sensor (1) one end is connected to the voltage end (V) of PCB circuit board (2) by PCB PCB socket (3), and the lead-in wire of tongue tube sensor (2) other end is divided into two stocks and is not connected to two of single-chip microprocessor MCU in the PCB circuit board (2) by PCB PCB socket (3) and detects mouthful.
2. a kind of hilted broadsword list according to claim 1 is put open type tongue tube sensor detection circuit, it is characterized in that: PCB PCB socket (3) is provided with first of single-chip microprocessor MCU in first interface (1P), connection PCB circuit board (2) of the voltage end (V) of connection PCB circuit board (2) and detects the 3rd interface (3P) that second of single-chip microprocessor MCU in second interface (2P) of mouthful (IO_1) and the connection PCB circuit board (2) detects mouthful (IO_2).
3. a kind of hilted broadsword list according to claim 2 is put open type tongue tube sensor detection circuit, it is characterized in that: the lead-in wire of tongue tube sensor (1) one end is connected to first interface (1P) of PCB PCB socket (3) by the first connecting line (L1), and the first interface (1P) is connected to the voltage end (V) of PCB circuit board (2).
4. a kind of hilted broadsword list according to claim 3 is put open type tongue tube sensor detection circuit, it is characterized in that: the lead-in wire of tongue tube sensor (1) other end is divided in parallel two strands, wherein one is connected to second interface (2P) of PCB PCB socket (3) by the second connecting line (L2), and another strand is connected to the 3rd interface (3P) of PCB PCB socket (3) by the 3rd connecting line (L3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114983 CN203241063U (en) | 2013-03-13 | 2013-03-13 | Single-knife single-position normally-open reed switch sensor detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114983 CN203241063U (en) | 2013-03-13 | 2013-03-13 | Single-knife single-position normally-open reed switch sensor detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203241063U true CN203241063U (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320114983 Expired - Lifetime CN203241063U (en) | 2013-03-13 | 2013-03-13 | Single-knife single-position normally-open reed switch sensor detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203241063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898009A (en) * | 2015-03-17 | 2015-09-09 | 杭州鸿雁电器有限公司 | Detection device for connected sensing device and detection method |
-
2013
- 2013-03-13 CN CN 201320114983 patent/CN203241063U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898009A (en) * | 2015-03-17 | 2015-09-09 | 杭州鸿雁电器有限公司 | Detection device for connected sensing device and detection method |
| CN104898009B (en) * | 2015-03-17 | 2024-02-13 | 杭州鸿雁电器有限公司 | Detection equipment and detection method for online sensing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |