CN207391840U - A kind of drain protective device and washing machine - Google Patents
A kind of drain protective device and washing machine Download PDFInfo
- Publication number
- CN207391840U CN207391840U CN201721221005.2U CN201721221005U CN207391840U CN 207391840 U CN207391840 U CN 207391840U CN 201721221005 U CN201721221005 U CN 201721221005U CN 207391840 U CN207391840 U CN 207391840U
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- temperature
- temperature switch
- control circuit
- drainage mechanism
- protective device
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Abstract
The utility model is related to washing machine technology fields, disclose a kind of drain protective device and washing machine.The drain protective device includes drainage mechanism, and drainage mechanism is connected by control circuit with controller, temperature switch is equipped on drainage mechanism, temperature switch is arranged in control circuit；In drainage procedure, when temperature at discharging condensate is higher than design temperature, temperature switch disconnects, and powers off control circuit, and drainage mechanism stops draining, and when temperature at discharging condensate is less than design temperature, temperature switch is closed, and control circuit is made to be powered, and drainage mechanism continues draining.The utility model realizes temperature at discharging condensate automatic protection mechanism, prevents high-temperature water from discharging, and unnecessary injury is caused to consumer; it ensure that the safety of consumer, while avoid damage of the high-temperature water to sewer pipe, the drain protective device reliable in action; performance is stablized, and service life is long.
Description
Technical field
The utility model is related to washing machine technology field more particularly to a kind of drain protective devices and washing machine.
Background technology
Existing washing machine function upgrading, either rotary drum washing machine or roller washing machine add heating function.
During laundry, the activity of enzyme in detergent can be improved using hot water washing, is readily cleaned oil stain, washing effect is more preferably；Even also
Have " scalding ", using 90 DEG C and more than hot water washing, high temperature sterilization can be played the role of.However, this washing machine is being washed
, it is necessary to discharge thermal wastewater at the end of washing, on the one hand the discharge of high temperature thermal wastewater easily scalds consumer, to consumer with messenger
Body injures, and on the other hand, the thermal wastewater of excessive temperature can also accelerate the aging of house sewer pipe, shorten its service life.
Based on the above, there is an urgent need for draining protections that is a kind of safe, can preventing high-temperature-hot-water from being discharged from washing machine
Device and the washing machine with the drain protective device.
Utility model content
The purpose of this utility model is to provide a kind of drain protective device and washing machine, for solving existing washing machine row
Coolant-temperature gage is excessively high, the problem of easily scalding consumer and damage sewer pipe.
In order to achieve the above object, the utility model uses following technical scheme：
A kind of drain protective device, including drainage mechanism, the drainage mechanism is connected by control circuit with controller, institute
It states and temperature switch is installed on drainage mechanism, the temperature switch is arranged in the control circuit；In drainage procedure, work as draining
When temperature is higher than design temperature, the temperature switch disconnects, and powers off the control circuit, and the drainage mechanism stops draining,
When temperature at discharging condensate is less than design temperature, the temperature switch is closed, and the control circuit is made to be powered, and the drainage mechanism continues
Draining.
Preferably, the control circuit is alternating current circuit, including firewire and zero curve, the temperature switch is arranged on described
On firewire and/or the zero curve.
Preferably, the control circuit is DC circuit, including anode circuit and cathode circuit, the temperature switch is set
It puts on the anode circuit and/or the negative line road.
Preferably, movable contact and stationary contact are equipped in the temperature switch, one in the movable contact and stationary contact
It is connected with the incoming line of the temperature switch, another is connected with the outlet line of the temperature switch；It is described quiet under room temperature
Contact is connected with movable contact, and the control circuit is powered；During more than design temperature, the movable contact is disconnected with stationary contact, described
Control circuit powers off.
Preferably, the temperature switch is double metal temperature switch, including shell and the bimetallic being arranged in shell
Piece, the bimetal leaf are connected with the movable contact；When temperature at discharging condensate is more than design temperature, the bimetal leaf bending becomes
Shape, when temperature at discharging condensate is less than design temperature, the bimetal leaf restores to the original state.
Preferably, the bimetal leaf includes active layers and passive layer, the coefficient of expansion of the active layers is passive layer
10-30 times of the coefficient of expansion.
Preferably, the active layers are high manganese, the passive layer is invar.
Preferably, the bending degree of the bimetal leaf is directly proportional to the temperature at discharging condensate.
Preferably, the drainage mechanism is draining pump, the drain motor of the draining pump passes through control circuit and control
Device connects, and the temperature switch is installed on the pump case of the draining pump.
Preferably, the drainage mechanism is drain valve.
A kind of washing machine, including the drain protective device described in any of the above scheme.
The beneficial effects of the utility model are：
The utility model is high when controller controls drainage mechanism draining by installing temperature switch on drainage mechanism
Warm water enters drainage mechanism, the temperature rise of drainage mechanism, and the temperature of temperature switch mounted thereto also increases, when
When the temperature of temperature switch rises to preset temperature, temperature switch disconnects, and entire control circuit is caused to power off, and drainage mechanism stops
Draining；After water temperature drop, the temperature of temperature switch drops to below design temperature therewith, at this point, temperature switch is closed, entirely
Control circuit turns on, drainage mechanism proper drainage.The drain protective device reliable in action of the utility model, performance are stablized, and realize
Temperature at discharging condensate automatic protection mechanism, prevents high-temperature water from discharging, unnecessary injury is caused to consumer, ensure that consumer's
Safety, while avoid damage of the high-temperature water to sewer pipe.
Description of the drawings
It, below will be to the utility model embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing is briefly described needed in description, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without creative efforts, can be with root
Other attached drawings are obtained according to the content of the utility model embodiment and these attached drawings.
Fig. 1 be the utility model embodiment provide drain protective device structure diagram (temperature switch be in close
Conjunction state)；
Fig. 2 is that (temperature switch is in disconnected for the structure diagram of the drain protective device that the utility model embodiment provides
Open state).
In figure：
1- temperature switches；11- stationary contacts；12- movable contacts；13- shells；14- bimetal leafs；15- incoming lines；16- is defeated
Go out circuit；
2- draining pumps；21- drain motors；22- pump cases；23- pump impellers；24- water inlets；25- water outlets；26- pump seats；27-
Pump plug；
31- firewires；32- zero curves.
Specific embodiment
The technical issues of to solve the utility model, the technical solution used and the technique effect reached are clearer,
The technical solution of the utility model embodiment is described in further detail below in conjunction with attached drawing, it is clear that described reality
It is only the utility model part of the embodiment to apply example, instead of all the embodiments.Based on the embodiment in the utility model,
It is new to belong to this practicality for those skilled in the art's all other embodiments obtained without creative efforts
The scope of type protection.
As depicted in figs. 1 and 2, present embodiment provides a kind of preferred drain protective device, for rotary drum washing machine or
Roller washing machine.The drain protective device is arranged on the drainage pipeline of washing machine, including drainage mechanism and is installed on drainage mechanism
On temperature switch 1, drainage mechanism is electrically connected by control circuit with the controller of washing machine, and temperature switch 1 is arranged at control
On circuit, being turned on or off for the control circuit can be controlled；In drainage procedure, when temperature at discharging condensate is higher than design temperature,
Temperature switch 1 disconnects automatically, so that control circuit powers off, drainage mechanism stops draining；When temperature at discharging condensate is less than design temperature
When, temperature switch 1 is closed automatically, so that control circuit is powered, drainage mechanism continues draining.The utility model realizes draining
Temperature automatic protection mechanism, prevents high-temperature water from discharging, and unnecessary injury is caused to consumer, ensure that the safety of consumer,
Damage of the high-temperature water to sewer pipe is avoided simultaneously, the drain protective device reliable in action, performance is stablized, and service life is long.
Further, above-mentioned control circuit can be alternating current circuit, at this point, drainage mechanism is connected with firewire 31 and zero curve
32, temperature switch 1 can be arranged on firewire 31, can be also arranged on zero curve 32, can be achieved to the cut-out of control circuit or
Conducting acts on.Certainly, above-mentioned control circuit can also be DC circuit, and the direct current after rectification is supplied plumbing by controller at this time
Mechanism is connected with anode circuit and cathode circuit on drainage mechanism, which can be arranged on electrode line road, also can
It is arranged on negative line road.
Specifically, above-mentioned drainage mechanism is draining pump 2 or drain valve, present embodiment is illustrated by taking draining pump 2 as an example.
As depicted in figs. 1 and 2, which includes pump case 22 and the drain motor 21 for being installed on 22 one end of pump case, the pump chamber of pump case 22
Pump impeller 23 is inside provided with, pump impeller 23 is fixedly connected with the output shaft of drain motor 21.24 He of water inlet is additionally provided on pump case 22
Water outlet 25, during work, drain motor 21 drives pump impeller 23 to rotate, and the waste water in washing machine drum is sucked by water inlet 24, and
It is discharged by water outlet 25.The other end of pump case 22 is additionally provided with pump seat 26, and pump plug 27 is equipped on pump seat 26, is easy to open draining
2 pairs of pump chambers of pump clean.Further, a mounting groove is additionally provided on the pump case 22 of the draining pump 2, above-mentioned temperature switch 1 is
It being fixed in the mounting groove, after hot water is passed through in pump chamber, the temperature of hot water is passed to temperature switch 1 by pump case 22, so that
Corresponding actions occur for temperature switch 1.Drain motor 21 herein is preferably alternating current generator, and firewire 31 is connected on drain motor 21
With zero curve 32, temperature switch 1 is preferably disposed on 31 circuit of firewire.Certainly, if in DC control circuit, above-mentioned drain motor
21 are answered selected as direct current generator.
Preferably, movable contact 12 and stationary contact 11 are equipped in above-mentioned temperature switch 1, in movable contact 12 and stationary contact 11
One is connected with the incoming line 15 of temperature switch 1, another is connected with the outlet line 16 of temperature switch 1.The temperature switch 1
It is at normal temperatures normally off, i.e. stationary contact 11 is in contact with movable contact 12, what entire control circuit was to turn on, is given by controller
Draining pump 2 is powered, and drain motor 21 is actuated for draining.When temperature at discharging condensate is excessively high, after the water of outer barrel enters pump chamber, make pump case 22
Temperature rise, and temperature is passed into temperature switch 1, movable contact 12 and the stationary contact 11 of temperature switch 1 disconnect, make entirely to control
Down circuitry processed, draining stop.When temperature at discharging condensate drops to design temperature again, the movable contact 12 and stationary contact of temperature switch 1
11 are closed again, continue proper drainage.Here design temperature can make choice between 35-50 degrees Celsius, the temperature range
Both it can guarantee the security of drainage procedure, while decreased the time needed for washing water cooling, and improved the work of washing machine
Efficiency.In addition, while cooling, by controller inlet valve can also be controlled to intake washing machine drum, and washing motor is controlled to rotate
Current are stirred, so that the waste water temperature in washing machine drum declines rapidly.
Preferably, above-mentioned temperature switch 1 is double metal temperature switch 1, and including shell 13, support is provided in shell 13
Frame is equipped with bimetal leaf 14 on supporting rack, and bimetal leaf 14 is connected with above-mentioned movable contact 12；When temperature at discharging condensate is more than setting
During temperature, bimetal leaf 14 occurs bending and deformation, and movable contact 12 is driven to move up, movable contact 12 is made to be separated with stationary contact 11.
When temperature at discharging condensate is less than design temperature, bimetal leaf 14 restores to the original state, and makes movable contact 12 and 11 contact closure of stationary contact.This reality
It applies in mode, once washings are higher than design temperature, even if controller controls drainage mechanism draining, due to depositing for temperature switch 1
, drainage mechanism still will not carry out draining, so as to effectively prevent high-temperature water discharge harm.
Specifically, above-mentioned bimetal leaf 14 by two kinds of different metals of the coefficient of expansion be combined into it is a piece of be made, including
Active layers and passive layer, and the coefficient of expansion of active layers is more than the coefficient of expansion of passive layer.When bimetal leaf expanded by heating, by
In the difference of double layer of metal line elongation, cause bimetal leaf 14 that can be bent to one side, so as to which above-mentioned movable contact 12 is driven to send out
Raw movement.In present embodiment, the coefficient of expansion of above-mentioned active layers is preferably 10-30 times of the passive layer coefficient of expansion, to ensure
Bimetal leaf 14 has enough bending degree, improves the functional reliability of the temperature switch 1.It is it is further preferred that above-mentioned double
The active layers of sheet metal 14 are high manganese, and passive layer is invar, and during use, the temperature at discharging condensate of washing machine is higher, this pair
The bending degree of sheet metal 14 is bigger.
Present embodiment also proposes a kind of washing machine, and draining protection described above is provided on the drainage pipeline of the washing machine
Device, the washing machine efficiently solve that existing washing machine drainage temperature is excessively high, easily scald consumer and damage sewer pipe
Problem.
Note that it above are only the preferred embodiment of the utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various bright
Aobvious variation is readjusted and substituted without departing from the scope of protection of the utility model.Therefore, although passing through above example
The utility model is described in further detail, but the utility model is not limited only to above example, is not departing from
In the case that the utility model is conceived, other more equivalent embodiments can also be included, and the scope of the utility model is by appended
Right determine.
Claims (10)
1. a kind of drain protective device, which is characterized in that including drainage mechanism, temperature switch is equipped on the drainage mechanism
(1), in drainage procedure, when temperature at discharging condensate is higher than design temperature, the temperature switch (1) disconnects, and the drainage mechanism stops
Draining.
2. drain protective device according to claim 1, which is characterized in that the drainage mechanism is by control circuit with washing
The controller connection of clothing machine, the temperature switch (1) is arranged in the control circuit, when the temperature switch (1) disconnects,
The control circuit power-off, makes the drainage mechanism stop draining.
3. drain protective device according to claim 2, which is characterized in that the control circuit is alternating current circuit, including
Firewire (31) and zero curve (32), the temperature switch (1) are arranged on the firewire (31) and/or the zero curve (32).
4. drain protective device according to claim 2, which is characterized in that the control circuit is DC circuit, including
Anode circuit and cathode circuit, the temperature switch (1) are arranged on the anode circuit and/or negative line road.
5. according to claim 2-4 any one of them drain protective devices, which is characterized in that set in the temperature switch (1)
There are a movable contact (12) and stationary contact (11), one in the movable contact (12) and stationary contact (11) and the temperature switch (1)
Incoming line (15) connection, another is connected with the outlet line (16) of the temperature switch (1)；The movable contact under room temperature
(12) connected with stationary contact (11), the control circuit is powered；During more than design temperature, the movable contact (12) and stationary contact
(11) disconnect, the control circuit power-off.
6. drain protective device according to claim 5, which is characterized in that the temperature switch (1) is bi-metal temperature
Switch, including shell (13) and the bimetal leaf (14) being arranged in shell (13), the bimetal leaf (14) is touched with described move
Point (12) connects；When temperature at discharging condensate is more than design temperature, bimetal leaf (14) flexural deformation is set when temperature at discharging condensate is less than
When constant temperature is spent, the bimetal leaf (14) restores to the original state.
7. drain protective device according to claim 6, which is characterized in that the bimetal leaf (14) include active layers and
Passive layer, the coefficient of expansion of the active layers are 10-30 times of the passive layer coefficient of expansion.
8. according to claim 2-4 any one of them drain protective devices, which is characterized in that the drainage mechanism is draining pump
(2), the drain motor (21) of the draining pump (2) is connected by control circuit with controller, and the temperature switch (1) is installed on
On the pump case (22) of the draining pump (2).
9. according to claim 2-4 any one of them drain protective devices, which is characterized in that the drainage mechanism is draining
Valve.
10. a kind of washing machine, which is characterized in that including such as claim 1-9 any one of them drain protective device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721221005.2U CN207391840U (en) | 2017-09-22 | 2017-09-22 | A kind of drain protective device and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721221005.2U CN207391840U (en) | 2017-09-22 | 2017-09-22 | A kind of drain protective device and washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207391840U true CN207391840U (en) | 2018-05-22 |
Family
ID=62404865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721221005.2U Active CN207391840U (en) | 2017-09-22 | 2017-09-22 | A kind of drain protective device and washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207391840U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594289A (en) * | 2018-12-27 | 2019-04-09 | 无锡小天鹅股份有限公司 | Control method, device and the device for clothing processing of device for clothing processing |
| CN109801811A (en) * | 2019-03-19 | 2019-05-24 | 广州安的电子技术有限公司 | Temperature switch |
| CN111864961A (en) * | 2020-08-13 | 2020-10-30 | 江苏雷利电机股份有限公司 | Drainage motor and washing machine |
| KR20220021434A (en) * | 2020-08-13 | 2022-02-22 | 지앙수 레일리 모터 코., 엘티디. | Drain motor and washing machine |
-
2017
- 2017-09-22 CN CN201721221005.2U patent/CN207391840U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594289A (en) * | 2018-12-27 | 2019-04-09 | 无锡小天鹅股份有限公司 | Control method, device and the device for clothing processing of device for clothing processing |
| CN109801811A (en) * | 2019-03-19 | 2019-05-24 | 广州安的电子技术有限公司 | Temperature switch |
| CN111864961A (en) * | 2020-08-13 | 2020-10-30 | 江苏雷利电机股份有限公司 | Drainage motor and washing machine |
| KR20220021434A (en) * | 2020-08-13 | 2022-02-22 | 지앙수 레일리 모터 코., 엘티디. | Drain motor and washing machine |
| KR102583926B1 (en) * | 2020-08-13 | 2023-09-27 | 지앙수 레일리 모터 코., 엘티디. | Drain motor and washing machine |
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