CN203564097U - Novel water dispenser - Google Patents
Novel water dispenser Download PDFInfo
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- CN203564097U CN203564097U CN201320701760.6U CN201320701760U CN203564097U CN 203564097 U CN203564097 U CN 203564097U CN 201320701760 U CN201320701760 U CN 201320701760U CN 203564097 U CN203564097 U CN 203564097U
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- water dispenser
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Abstract
The utility model relates to a novel water dispenser. A circuit board in the water dispenser comprises an overheat protection circuit including a switch. One end of the switch is electrically connected with a contact of a temperature relay and the other end of the switch is electrically connected with a first working power supply. The contact of the temperature relay is electrically connected with a contact of a first relay. The contact of the first relay is electrically connected with a coil of an electromagnetic relay. The coil of the electromagnetic relay is electrically connected with the first working power supply. One end of the switch is further electrically connected with a contact of the electromagnetic relay. The contact of the electromagnetic relay is electrically connected with the first working power supply through a load. The contact of the first relay is further connected with a first diode, a first light-emitting diode and a first resistor in series to be electrically connected with the first working power supply. The contact of the electromagnetic relay is further connected with a second diode, a second light-emitting diode and the first resistor in series to be electrically connected with the first working power supply. The novel water dispenser has the functions of overheat protection and low-water-level protection alarming.
Description
Technical field
The utility model relates to electric equipment products safe practice field, specifically, is a kind of novel water dispenser.
Background technology
Water dispenser, as a kind of daily living article, is also the electric equipment products that a kind of utilization rate is very high.Because current water dispenser is all generally long-time energising, therefore the requirement of its safety and stability is also higher.But in recent years, the accident of water dispenser spontaneous combustion on fire also happened occasionally, its reason is mainly several situations: due to long-time energising, and excess Temperature or drinking water water shortage, thereby cause the problems such as dry combustion method, zero device aging, power consumption do not mate.
Utility model content
The purpose of this utility model is, a kind of novel water dispenser is provided, and it has the function of overtemperature protection and low water level protection alarm, thereby can solve water dispenser, switch on for a long time, and the problem such as excess Temperature or too low the caused dry combustion method of water dispenser water level.
For achieving the above object, the utility model by the following technical solutions.
A kind of novel water dispenser, comprises a wiring board, comprises an overheating protection circuit on described wiring board, and described overheating protection circuit comprises a switch; One end of described switch is electrically connected to the contact of a temperature relay, and the other end is electrically connected to one first working power; The contact of described temperature relay is electrically connected with the contact of one first relay, and the contact of described the first relay is electrically connected to the coil of an electromagnetic type relay, and the coil of described electromagnetic type relay is electrically connected to described the first working power; One end of described switch is also electrically connected to the contact of described electromagnetic type relay; The contact of described electromagnetic type relay is electrically connected to described the first working power after by a load; The contact of described the first relay is also electrically connected to one first diode; Described the first diode electrically is connected to one first light emitting diode, and described the first light emitting diode is electrically connected to described the first working power after by one first resistance; The contact of described electromagnetic type relay is also connected with one second diode electrically; Described the second diode electrically is connected to one second light emitting diode, described the second light emitting diode is electrically connected to described the first working power after by described the first resistance, wherein when the internal components of described novel water dispenser generates heat to a design temperature, the contact of temperature relay disconnects, make the coil losing electricity of electromagnetic type relay, so that the contact of electromagnetic type relay switches to disconnect the heater circuit of described novel water dispenser.
Further, on described wiring board, also comprise a low water level holding circuit, described low water level holding circuit comprises a detection module, a comparison module, a control module and a trigger module, the pressure that described detection module produces in order to detect the inner water yield of water dispenser, and transfer pressure signal to voltage signal, to be sent to described comparison module; Described comparison module receives described voltage signal, and with a reservation threshold comparison; If described voltage signal during lower than described predetermined threshold, sends a Continuity signal to described trigger module by described control module; Described trigger module comprises described the first relay, and described the first relay receiving after Continuity signal, and the coil of described the first relay obtains and electricly with the first contact of controlling described the first relay, disconnects, to cut off the heater circuit of described novel water dispenser.
Further, described the first relay also comprises the second contact, the second contact of described the first relay is electrically connected with a warning circuit, electric with when controlling the first contact disconnection of described the first relay in order to obtain at the coil of the first relay, control second closing of contact of described the first relay, to make described warning circuit work.
Further, described detection module comprises a pressure sensor, and described pressure sensor is HM10 type pressure sensor; Described comparison module comprises an integrated operational amplifier; Described control module comprises a transistor; The first end of wherein said HM10 type pressure sensor is electrically connected with the negative input of described integrated operational amplifier; The second end of described HM10 type pressure sensor is electrically connected with one second resistance; Described the second resistance is electrically connected to ground connection after a potentiometer and one the 3rd resistance successively; Described the 3rd resistance is electrically connected with the 3rd end of described HM10 type pressure sensor; Described potentiometer is electrically connected with the positive input of described integrated operational amplifier; The output of described integrated operational amplifier is electrically connected with described transistorized base stage; The first end of described integrated operational amplifier is electrically connected to one second working power; The second end of described integrated operational amplifier ground connection that is electrically connected; Described transistorized colelctor electrode is electrically connected with the coil of the first relay, and is electrically connected with the anode of one the 3rd diode; The negative electrode of described the 3rd diode is electrically connected with the coil of described the second working power and described the first relay respectively; The described transistorized emitter stage ground connection that is electrically connected.
A kind of novel water dispenser advantage of the utility model is,
(1) adopt electromagnetic type relay and temperature relay to interact, in circuit, play the effects such as automatic adjusting, safeguard protection, change-over circuit, greatly promote the security of water dispenser entirety.
(2) utilize pressure sensor can accurately detect pressure signal, and convert the corresponding signal of telecommunication to, with a predetermined threshold relatively after, to open warning circuit, and can automatically cut off heater circuit, it has the features such as accuracy is high, reliability is strong.
(3) adopt complementary circuit, have easy to usely, controlled strong, the features such as security height, can meet the demand of market to water dispenser product.
Accompanying drawing explanation
Fig. 1 is overheating protection circuit schematic diagram of the present utility model.
Fig. 2 is the module frame chart of low water level holding circuit of the present utility model.
Fig. 3 is low water level holding circuit schematic diagram of the present utility model.
The specific embodiment
The specific embodiment of a kind of novel water dispenser the utility model being provided below in conjunction with accompanying drawing elaborates.
Shown in Figure 1, a kind of novel water dispenser, comprises a wiring board (not shown), comprises that an overheating protection circuit, described overheating protection circuit comprise a switch S A on described wiring board; One end of described switch S A is electrically connected to the contact of a temperature relay KM1, and the other end is electrically connected to one first working power (in the present embodiment, the first working power is 220V); The contact of described temperature relay KM1 is electrically connected with the contact of one first relay K A, and the contact of described the first relay K A is electrically connected to the coil of an electromagnetic type relay KM2, and the coil of described electromagnetic type relay KM2 is electrically connected to described the first working power; One end of described switch S A is also electrically connected to the contact (being S3 and S1) of described electromagnetic type relay KM2; The contact of described electromagnetic type relay KM2 is electrically connected to described the first working power after by a load RL; The contact of described the first relay K A is also electrically connected to one first diode VD1; Described the first diode VD1 is electrically connected to one first light emitting diode VL1, and described the first light emitting diode VL1 is electrically connected to described the first working power after by one first resistance R 1; The contact of described electromagnetic type relay KM2 is also electrically connected with one second diode VD2; Described the second diode VD2 is electrically connected to one second light emitting diode VL2, and described the second light emitting diode VL2 is electrically connected to described the first working power after by described the first resistance R 1.
Shown in Figure 2, on described wiring board, also comprise a low water level holding circuit, described low water level holding circuit comprises a detection module 31, a comparison module 32, a control module 33 and a trigger module 34, the pressure that described detection module 31 produces in order to detect the inner water yield of water dispenser, and transfer pressure signal to voltage signal, to be sent to described comparison module 32; Described comparison module 32 receives described voltage signal, and with a reservation threshold comparison; If described voltage signal during lower than described predetermined threshold, sends a Continuity signal to described trigger module 34 by described control module 33; Described trigger module 34 comprises described the first relay K A, and described the first relay K A receiving after Continuity signal, and the coil of described the first relay K A obtains and electricly with the first contact of controlling described the first relay K A, disconnects, to cut off the heater circuit of water dispenser.
In the present embodiment, described the first relay K A also comprises the second contact, the second contact of described the first relay K A is electrically connected with a warning circuit 330, electric with when controlling the first contact disconnection of described the first relay K A in order to obtain at the coil of the first relay K A, control second closing of contact of described the first relay, so that described warning circuit 330 is worked.
Shown in Fig. 2 and Fig. 3, in the present embodiment, described detection module 31 comprises a pressure sensor, and described pressure sensor is HM10 type pressure sensor 310; Described comparison module 32 comprises an integrated operational amplifier 320; Described control module 33 comprises a transistor T; The first end of wherein said HM10 type pressure sensor 310 is electrically connected with the negative input of described integrated operational amplifier 320; The second end of described HM10 type pressure sensor 310 is electrically connected with one second resistance R 2; Described the second resistance R 2 is electrically connected to a potentiometer RP and the rear ground connection of one the 3rd resistance R 3 successively; Described the 3rd resistance R 3 is electrically connected with the 3rd end of described HM10 type pressure sensor 310; Described potentiometer RP is electrically connected with the positive input of described integrated operational amplifier 320; The output of described integrated operational amplifier 320 is electrically connected with the base stage of described transistor T; The first end of described integrated operational amplifier 320 is electrically connected to one second working power (for example 5V); The second end of described integrated operational amplifier 320 ground connection that is electrically connected; The colelctor electrode of described transistor T is electrically connected with the coil of the first relay K A, and is electrically connected with the anode of one the 3rd diode VD3; The negative electrode of described the 3rd diode VD3 is electrically connected with the coil of described the second working power and described the first relay K A respectively; The emitter stage of the described transistor T ground connection that is electrically connected.
The operation principle of the overtemperature protection of whole water dispenser and low water level protection alarm will be illustrated below.
First, close a switch after SA, the electric current of the first working power 220V the flow through closing contact of temperature relay KM1 and the closing contact of the first relay K A, make the coil electricity of electromagnetic type relay KM2, to control contact (S1 and the S2) closure of electromagnetic type relay, thereby load RL is heated.Meanwhile, electric current is flowed through after the first diode VD1 rectification, then flow to the first light emitting diode VL1, and this first light emitting diode VL1 produces green glow, represents that load RL heating is normal, i.e. the heater circuit work of water dispenser.
Then, when electric current is excessive, when water dispenser internal components generates heat to a design temperature, for example, after temperature relay KM1 senses a temperature while spending (60), its contact disconnects, make the coil losing electricity of electromagnetic type relay KM2, so that the contact of electromagnetic type relay KM2 switches (by the connection between S1 and S2, switching to the connection between S1 and S3), i.e. load RL power-off.Meanwhile, due to the connection between S1 and S3, make electric current pass through, after the second diode VD2 rectification, to flow to the second light emitting diode VL2.This second light emitting diode VL2 produces ruddiness, represents that load RL stops heating, and the heater circuit of water dispenser quits work.
Follow, when the internal components temperature of water dispenser reduces, after about 6～8 minutes, after temperature relay KM1 sensing, its contact is again closed, thereby load RL will be reworked again.
When drinking water quantity not sufficient, described HM10 type pressure sensor 310 will detect that pressure signal transfers voltage signal to, and be sent to integrated operational amplifier 320, compare with a predetermined threshold, if the force value gathering is during lower than described predetermined threshold, described integrated operational amplifier 320 is controlled transistor T conducting, thereby makes the coil electricity of the first relay K A, the first contact of described the first relay K A disconnects, automatically to cut off the heater circuit of load RL.Meanwhile, second closing of contact of the first relay K A, opens warning circuit 330.
And when the water dispenser water yield is enough, described HM10 type pressure sensor 310 will detect that pressure signal transfers voltage signal to, and be sent to integrated operational amplifier 320, compare with a predetermined threshold, if the force value gathering is during higher than described predetermined threshold, described integrated operational amplifier 320 is controlled transistor T cut-off, thereby makes the coil losing electricity of the first relay K A, first closing of contact of described the first relay K A, load RL can start heating.Meanwhile, the second contact of the first relay K A disconnects, to close warning circuit 330.
As can be seen here, this device comprises overheating protection circuit and low water level holding circuit.Wherein, utilize the characteristic of temperature relay KM1 temperature influence come between the break-make of connection control circuit, thereby control the closed of electromagnetic type relay KM2 contact or disconnect, so greatly promote the security of water dispenser.And it is lower to work as the inner water yield of water dispenser; while utilizing force value that pressure sensor detects lower than predetermined threshold; by low water level holding circuit, original heater circuit is disconnected, and open warning circuit 330, thereby prevent from causing because of water shortage the generation of the accidents such as dry combustion method.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a novel water dispenser, comprises a wiring board, it is characterized in that, comprises an overheating protection circuit on described wiring board, and described overheating protection circuit comprises a switch; One end of described switch is electrically connected to the contact of a temperature relay, and the other end is electrically connected to one first working power; The contact of described temperature relay is electrically connected with the contact of one first relay, and the contact of described the first relay is electrically connected to the coil of an electromagnetic type relay, and the coil of described electromagnetic type relay is electrically connected to described the first working power; One end of described switch is also electrically connected to the contact of described electromagnetic type relay; The contact of described electromagnetic type relay is electrically connected to described the first working power after by a load; The contact of described the first relay is also electrically connected to one first diode; Described the first diode electrically is connected to one first light emitting diode, and described the first light emitting diode is electrically connected to described the first working power after by one first resistance; The contact of described electromagnetic type relay is also connected with one second diode electrically; Described the second diode electrically is connected to one second light emitting diode, and described the second light emitting diode is electrically connected to described the first working power after by described the first resistance; Wherein, when the internal components of described novel water dispenser generates heat to a design temperature, the contact of temperature relay disconnects, and makes the coil losing electricity of electromagnetic type relay, so that the contact of electromagnetic type relay switches to disconnect the heater circuit of described novel water dispenser.
2. a kind of novel water dispenser according to claim 1, it is characterized in that, on described wiring board, also comprise a low water level holding circuit, described low water level holding circuit comprises a detection module, a comparison module, a control module and a trigger module, the pressure that described detection module produces in order to detect the inner water yield of water dispenser, and transfer pressure signal to voltage signal, to be sent to described comparison module; Described comparison module receives described voltage signal, and with a reservation threshold comparison; If described voltage signal during lower than described predetermined threshold, sends a Continuity signal to described trigger module by described control module; Described trigger module comprises described the first relay, and described the first relay receiving after Continuity signal, and the coil of described the first relay obtains and electricly with the first contact of controlling described the first relay, disconnects, to cut off the heater circuit of described novel water dispenser.
3. a kind of novel water dispenser according to claim 2, it is characterized in that, described the first relay also comprises the second contact, the second contact of described the first relay is electrically connected with a warning circuit, electric with when controlling the first contact disconnection of described the first relay in order to obtain at the coil of the first relay, control second closing of contact of described the first relay, to make described warning circuit work.
4. a kind of novel water dispenser according to claim 3, is characterized in that, described detection module comprises a pressure sensor, and described pressure sensor is HM10 type pressure sensor; Described comparison module comprises an integrated operational amplifier; Described control module comprises a transistor; The first end of wherein said HM10 type pressure sensor is electrically connected with the negative input of described integrated operational amplifier; The second end of described HM10 type pressure sensor is electrically connected with one second resistance; Described the second resistance is electrically connected to ground connection after a potentiometer and one the 3rd resistance successively; Described the 3rd resistance is electrically connected with the 3rd end of described HM10 type pressure sensor; Described potentiometer is electrically connected with the positive input of described integrated operational amplifier; The output of described integrated operational amplifier is electrically connected with described transistorized base stage; The first end of described integrated operational amplifier is electrically connected to one second working power; The second end of described integrated operational amplifier ground connection that is electrically connected; Described transistorized colelctor electrode is electrically connected with the coil of the first relay, and is electrically connected with the anode of one the 3rd diode; The negative electrode of described the 3rd diode is electrically connected with the coil of described the second working power and described the first relay respectively; The described transistorized emitter stage ground connection that is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701760.6U CN203564097U (en) | 2013-11-08 | 2013-11-08 | Novel water dispenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701760.6U CN203564097U (en) | 2013-11-08 | 2013-11-08 | Novel water dispenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203564097U true CN203564097U (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320701760.6U Expired - Fee Related CN203564097U (en) | 2013-11-08 | 2013-11-08 | Novel water dispenser |
Country Status (1)
| Country | Link |
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| CN (1) | CN203564097U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062619A (en) * | 2017-03-02 | 2017-08-18 | 佛山利物浦电子科技有限公司 | A kind of anti-dry burning device |
| CN108552948A (en) * | 2018-06-26 | 2018-09-21 | 佛山市晨洲电气有限公司 | A kind of electric kettle preventing dry combustion method |
-
2013
- 2013-11-08 CN CN201320701760.6U patent/CN203564097U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062619A (en) * | 2017-03-02 | 2017-08-18 | 佛山利物浦电子科技有限公司 | A kind of anti-dry burning device |
| CN108552948A (en) * | 2018-06-26 | 2018-09-21 | 佛山市晨洲电气有限公司 | A kind of electric kettle preventing dry combustion method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140430 Termination date: 20161108 |