CN207396647U - Detection apparatus for heater - Google Patents
Detection apparatus for heater Download PDFInfo
- Publication number
- CN207396647U CN207396647U CN201721232121.4U CN201721232121U CN207396647U CN 207396647 U CN207396647 U CN 207396647U CN 201721232121 U CN201721232121 U CN 201721232121U CN 207396647 U CN207396647 U CN 207396647U
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- China
- Prior art keywords
- module
- electrically connected
- heater
- switch control
- heating
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- 238000001514 detection method Methods 0.000 title claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims description 39
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000010354 integration Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 206010037660 Pyrexia Diseases 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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- Control Of Resistance Heating (AREA)
Abstract
The utility model discloses a detection device of a heater, which comprises a rectification module, a filtering module, a voltage division module, a difference module and a detection module, wherein the rectification module is electrically connected with the heater to lead out an alternating current signal in the heater and convert the alternating current signal into a direct current signal; the filtering module is electrically connected with the rectifying module to reduce the ripple coefficient of the direct current signal and enable the direct current signal to be output smoothly and efficiently; the voltage division module is electrically connected with the filtering module and is used for converting the direct current signal into more than one low-voltage direct current signal; the differential module is electrically connected with the voltage division module so as to integrate and process the low-voltage direct-current signal; the detection module is electrically connected with the differential module, receives an integrated signal processed by the differential module and is used for detecting the working state of the heater, and the detection module detects components inside the heater to judge whether the heater works normally, so that the practicability and the safety are improved, and the occurrence of safety accidents is reduced.
Description
Technical field
The utility model is related to electronic fields, particularly a kind of detection device of heater.
Background technology
Existing aquarium heater, the water body inside water supply race case are heated, and make water body in aquarium
Temperature is maintained in suitable temperature region, improves chances of survival and the service life of fish, but existing aquarium heater
The working condition of heater body is not detected, it, must because can not carry out when short circuit or open circuit occurs in heater body
The detection and protection wanted, may result in serious consequence, such as heater is burned.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of detection device of heater.
The technical solution adopted in the utility model is：
A kind of detection device of heater, including rectification module, the rectification module is electrically connected to draw with heater
The AC signal is simultaneously converted into direct current signal by the AC signal of heater body；
Filter module is electrically connected to reduce the ripple coefficient of direct current signal, enables direct current signal high with rectification module
The smooth output of effect；
Division module is electrically connected with filter module and believes for direct current signal is converted into more than one low-voltage direct
Number；
Difference block is electrically connected low-voltage dc signal carrying out integration processing with division module；
Detection module is electrically connected with difference block, receive through difference block integrate treated integrated signal for
Detect the working condition of heater.
The heater include switch control module, heating module and sensing module, the heating module respectively with switch
Control module, sensing module are electrically connected, and sensing module is also electrically connected with switch control module, which is used to detect
Temperature information is simultaneously transferred to switch control module by the temperature information of heating object, and switch control module is used for according to sensing mould
Block transfer temperature information be turned on or off that heating module is controlled to be heated or stop heating, the rectification module with
Switch control module is electrically connected, and rectification module, filter module, division module, difference block, detection module are electrically connected successively
For the working condition of detection switch control module.
The heater include switch control module, heating module and sensing module, the heating module respectively with switch
Control module, sensing module are electrically connected, and sensing module is also electrically connected with switch control module, which is used to detect
Temperature information is simultaneously transferred to switch control module by the temperature information of heating object, and switch control module is used for according to sensing mould
Block transfer temperature information be turned on or off that heating module is controlled to be heated or stop heating, the rectification module with
Heating module be electrically connected, rectification module, filter module, division module, difference block, detection module be electrically connected successively with
In the working condition of detection heating module.
The switch control module is also electrically connected with protective resistance R7.
The difference block includes operational amplifier U1, resistance R22 and output resistance R3, the operational amplifier U1's
In-phase input end, inverting input are electrically connected respectively with division module, and resistance R22 is defeated with the reverse phase of operational amplifier U1 respectively
Enter one end electric connection at end, the output terminal of operational amplifier U1, output resistance R3, the other end and the detection mould of output resistance R3
Block is electrically connected.
The utility model further includes follower, and the follower includes operational amplifier U2, and operational amplifier U2's is same
Phase input terminal and output resistance R3 are electrically connected, the output terminal of the operational amplifier U2 anti-phase input with operational amplifier U2 respectively
End, detection module are electrically connected.The beneficial effects of the utility model：
The utility model sets detection protective device on the heaters, passes through the rectification module that is electrically connected successively, filtering
Module, division module, difference block, detection module are detected the component of heater body, whether to judge heater
Normal work, improves practicability and security, reduces the generation of security incident.
Description of the drawings
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
Fig. 1 is the First Principle block diagram of the utility model.
Fig. 2 is second functional block diagram of the utility model.
Fig. 3 is the 3rd functional block diagram of the utility model.
Fig. 4 is the connection diagram of the utility model protective resistance R7.
Fig. 5 is the circuit diagram of the utility model.
Fig. 6 is the circuit diagram of the utility model difference block.
Fig. 7 is the circuit diagram of the utility model follower.
Specific embodiment
As shown in Figure 1, a kind of detection device of heater, including rectification module 2, filter module 3, division module 4, difference
Module 5 and detection module 6, the rectification module 2 are electrically connected to draw the AC signal inside heater 1 with heater 1
And the AC signal is converted into direct current signal；Filter module 3 is electrically connected to reduce the ripple of direct current signal with rectification module 2
Coefficient enables direct current signal efficiently smoothly to export；Division module 4 and filter module 3 are electrically connected for by direct current signal
It is converted into more than one low-voltage dc signal；Difference block 5 is electrically connected to carry out low-voltage dc signal with division module 4
Integration is handled；Detection module 6 is electrically connected with difference block 5, receive through difference block 5 integrate treated integrated signal with
In the working condition of detection heater.
As shown in Fig. 2, the heater 1 includes switch control module 11, heating module 12 and sensing module 13, the hair
Thermal modules 12 are electrically connected respectively with switch control module 11, sensing module 13, sensing module 13 also with switch control module 11
It is electrically connected, which is used to detect the temperature information of heating object and temperature information is transferred to switch control mould
Block 11, switch control module 11 are used to be turned on or off to control fever mould according to the temperature information that sensing module 13 transfers
Block 12 is heated or stops heating, and the rectification module 2 is electrically connected with switch control module 11, rectification module 2, filtering mould
Block 3, division module 4, difference block 5, detection module 6 are electrically connected the work shape for detection switch control module 11 successively
State.
As shown in figure 3, the heater 1 includes switch control module 11, heating module 12 and sensing module 13, the hair
Thermal modules 12 are electrically connected respectively with switch control module 11, sensing module 13, sensing module 13 also with switch control module 11
It is electrically connected, which is used to detect the temperature information of heating object and temperature information is transferred to switch control mould
Block 11, switch control module 11 are used to be turned on or off to control fever mould according to the temperature information that sensing module 13 transfers
Block 12 is heated or stops heating, and the rectification module 2 is electrically connected with heating module 12, rectification module 2, filter module 3,
Division module 4, difference block 5, detection module 6 are electrically connected to detect the working condition of heating module 12 successively.
Heater 1 is mainly worked by using the break-make control heating module 12 of switch control module 11, is added so as to reach
The purpose of hot water.Meanwhile also temperature in use sensing module 13 measures temperature, and switch is then turned off when temperature reaches assigned temperature
Control module 11, so as to stop heating.Wherein switch control module 11 is preferably relay K2 or silicon-controlled, and heating module 12 is excellent
Elect resistance wire or PTC resistor as.
The operation principle of the utility model is：The ac high-voltage signal warp at 12 both ends of switch control module 11 or heating module
Become direct current signal after over commutation module 2, filter module 3, direct current signal is low into more than one by 4 partial pressure switch of division module
Direct current signal is pressed, which is transferred to detection module 6 after the integration of difference block 5, and detection module 6 is monolithic
Machine receives and integrates treated integrated signal through difference block 5 and integrated signal is carried out analog-to-digital conversion into digital value, by
To different size of digital value, then the turn-on and turn-off shape at 12 both ends of switch control module 11 or heating module can be detected
State, so as to be further processed and protect.
As shown in figure 4, the switch control module 11 is also electrically connected with protective resistance R7, in the present embodiment, resistance
R7 one end is connected with external power input, and the resistance R7 other ends are connected by control module 11, i.e. relay K2 with ground terminal,
Two contacts of relay K2 disconnect under normal operating conditions, when relay K2 short circuits occur when catastrophe failures, relay K2 two
Contact closure is to generate to earth-current, and subsequent triggers higher-level leakage protection mechanism is cut off the power, protective device.
As shown in Figure 5 and Figure 6, the difference block 5 includes operational amplifier U1, resistance R22 and output resistance R3, institute
State the in-phase input end of operational amplifier U1, inverting input is electrically connected respectively with division module 4, resistance R22 respectively with fortune
Calculate one end electric connection of the inverting input of amplifier U1, the output terminal of operational amplifier U1, output resistance R3, output resistance
The other end of R3 is electrically connected with detection module 6.
As shown in figure 5 and figure 7, the utility model further includes follower 7, and the follower 7 includes operational amplifier U2, should
The in-phase input end of operational amplifier U2 is electrically connected with output resistance R3, and the output terminal of operational amplifier U2 is put respectively with computing
Inverting input, the detection module 6 of big device U2 is electrically connected, and low output-impedance stage of the follower 7 as entire circuit can mitigate
Influence to signal improves carrying load ability, and circuit is made more to stablize.
The foregoing is merely the preferred embodiments of the utility model, the utility model is not limited to above-mentioned embodiment party
Formula, if with essentially identical means realize the technical solution of the utility model aim belong to the scope of protection of the utility model it
It is interior.
Claims (6)
1. a kind of detection device of heater, which is characterized in that including：
Rectification module (2), the rectification module (2) is electrically connected to draw inside heater (1) with heater (1) exchanges letter
Number and the AC signal is converted into direct current signal；
Filter module (3) is electrically connected to reduce the ripple coefficient of direct current signal, enable direct current signal with rectification module (2)
Efficiently smooth output；
Division module (4) is electrically connected direct current signal being converted into more than one low-voltage direct with filter module (3)
Signal；
Difference block (5) is electrically connected low-voltage dc signal carrying out integration processing with division module (4)；
Detection module (6) is electrically connected with difference block (5), receive through difference block (5) integrate treated integrated signal with
For detecting the working condition of heater.
2. a kind of detection device of heater according to claim 1, it is characterised in that：The heater (1) includes opening
Close control module (11), heating module (12) and sensing module (13), the heating module (12) respectively with switch control module
(11), sensing module (13) is electrically connected, and sensing module (13) is also electrically connected with switch control module (11), the sensing module
(13) it is used to detect the temperature information of heating object and temperature information is transferred to switch control module (11), switch control mould
Block (11) is used to be turned on or off that heating module (12) is controlled to carry out according to the temperature information that sensing module (13) transfers
Heating stops heating, and the rectification module (2) is electrically connected with switch control module (11), rectification module (2), filter module
(3), division module (4), difference block (5), detection module (6) are electrically connected successively for detection switch control module (11)
Working condition.
3. a kind of detection device of heater according to claim 1, it is characterised in that：The heater (1) includes opening
Close control module (11), heating module (12) and sensing module (13), the heating module (12) respectively with switch control module
(11), sensing module (13) is electrically connected, and sensing module (13) is also electrically connected with switch control module (11), the sensing module
(13) it is used to detect the temperature information of heating object and temperature information is transferred to switch control module (11), switch control mould
Block (11) is used to be turned on or off that heating module (12) is controlled to carry out according to the temperature information that sensing module (13) transfers
Heating stops heating, and the rectification module (2) and heating module (12) are electrically connected, rectification module (2), filter module (3),
Division module (4), difference block (5), detection module (6) are electrically connected successively for the work shape of detection heating module (12)
State.
4. a kind of detection device of heater according to Claims 2 or 3, it is characterised in that：The switch control module
(11) also it is electrically connected with protective resistance R7.
5. a kind of detection device of heater according to claim 1, it is characterised in that：The difference block (5) includes
The in-phase input end of operational amplifier U1, resistance R22 and output resistance R3, the operational amplifier U1, inverting input point
Be not electrically connected with division module (4), resistance R22 respectively with the inverting input of operational amplifier U1, operational amplifier U1
Output terminal, one end of output resistance R3 are electrically connected, and the other end and the detection module (6) of output resistance R3 are electrically connected.
6. a kind of detection device of heater according to claim 5, it is characterised in that：Follower (7) is further included, it is described
Follower (7) includes operational amplifier U2, and in-phase input end and the output resistance R3 of operational amplifier U2 are electrically connected, computing
The output terminal of amplifier U2 is electrically connected respectively with the inverting input of operational amplifier U2, detection module (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721232121.4U CN207396647U (en) | 2017-09-22 | 2017-09-22 | Detection apparatus for heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721232121.4U CN207396647U (en) | 2017-09-22 | 2017-09-22 | Detection apparatus for heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207396647U true CN207396647U (en) | 2018-05-22 |
Family
ID=62405045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721232121.4U Expired - Fee Related CN207396647U (en) | 2017-09-22 | 2017-09-22 | Detection apparatus for heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207396647U (en) |
-
2017
- 2017-09-22 CN CN201721232121.4U patent/CN207396647U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180522 Termination date: 20180922 |