CN113944039B

CN113944039B - Clothes dryer door lock control method and clothes dryer

Info

Publication number: CN113944039B
Application number: CN202010680204.XA
Authority: CN
Inventors: 孟庆川; 杨景利; 鞠斌; 刘庆伟; 刘健伟; 侯昆; 白江飞
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2023-05-02
Anticipated expiration: 2040-07-15
Also published as: WO2022012359A1; CN113944039A

Abstract

The invention discloses a clothes dryer door lock control method and a clothes dryer, which belong to the technical field of clothes treatment, wherein the clothes dryer door lock control method comprises the following steps: when the clothes dryer starts to work, judging whether the load weight is larger than the preset weight, if so, controlling the door lock to be in a locking state, and otherwise, controlling the door lock to be in an unlocking state. The dryer is controlled using the dryer door lock control method as described above. If the load weight is smaller than the preset weight, which means that the clothes are less, the door lock is controlled to be in an unlocking state, so that a user can conveniently take and put the clothes; if the load weight is greater than the preset weight, which means that more clothes are loaded, the door lock is controlled to be in a locking state, and the clothes are prevented from pushing against the door body.

Description

Clothes dryer door lock control method and clothes dryer

Technical Field

The invention relates to the technical field of clothes treatment, in particular to a clothes dryer door lock control method and a clothes dryer.

Background

The clothes dryer mainly comprises a door, a shell, a roller for placing clothes, an air path, a heating element, a control system and the like, and at present, except for the clothes dryer for drying clothes by using a heat pump system, other clothes are dried by using an electric heating element to heat; namely, the air with the ambient temperature is changed into high-temperature gas through the heating element to enter the roller, the high-temperature drying air exchanges heat with wet clothes in the roller, the air is changed into the process that the wet hot air with relatively low temperature is discharged out of the roller, and the clothes can achieve the drying effect after a certain time of circulation.

Since the drying course is different from the washing course, no water is stored in the drum when the drying course is performed, the user can open the door of the dryer to take and put laundry during the execution of the drying course. In general, in the working process of the clothes dryer, the door body is in an unlocking state and can be opened at any time. However, when the laundry in the dryer is excessive, the dryer door is pushed open, which affects the normal progress of the drying process.

Disclosure of Invention

The invention aims to provide a clothes dryer door lock control method and a clothes dryer, and aims to solve the technical problems that in the prior art, clothes can be jacked up by clothes without locking the door of the clothes dryer, and a user cannot conveniently take and put clothes by locking the door of the clothes dryer.

The technical scheme adopted by the invention is as follows:

a dryer door lock control method, comprising:

when the clothes dryer starts to work, judging whether the load weight is larger than the preset weight, if so, controlling the door lock to be in a locking state, and otherwise, controlling the door lock to be in an unlocking state.

And when the load weight is greater than the preset weight, controlling the door lock to be in a locking state.

Wherein, the detecting load weight comprises: and detecting the state of the door body, and detecting the weight of the primary load if the door body is opened and closed within a first set time length.

And if the door body is opened and the door body is not closed for longer than a first set time, triggering an alarm device.

Wherein, the detecting load weight comprises: the load weight is detected once every second set period of time.

Wherein, when the door lock is in a locked state and is electrified, the door lock can be opened by an unlocking mechanism.

The door lock can be opened through the emergency mechanism under the condition that the door lock is in a locking state and is powered off.

And if the power is off in the working process of the clothes dryer, the power is supplied to the door lock through a storage battery in the clothes dryer.

The state of the door lock is indicated through an indicator lamp, and the indicator lamp has multiple colors.

A clothes dryer is controlled by adopting the clothes dryer door lock control method.

The invention has the beneficial effects that:

according to the clothes dryer door lock control method, when the clothes dryer starts to work, the load weight is judged, if the load weight is smaller than the preset weight, the door lock is controlled to be in an unlocking state, and a user can conveniently take and put clothes; if the load weight is greater than the preset weight, which means that more clothes are loaded, the door lock is controlled to be in a locking state, and the clothes are prevented from pushing against the door body.

Drawings

Fig. 1 is a schematic view of a structure of a dryer provided by an embodiment of the present invention;

fig. 2 is a schematic view of a structure in which a front panel of a clothes dryer and a lock body are engaged with each other according to an embodiment of the present invention;

FIG. 3 is a schematic view of the back side of FIG. 2;

FIG. 4 is a schematic diagram of a portion of the structure of FIG. 2;

FIG. 5 is a schematic diagram of a portion of the structure of FIG. 2;

FIG. 6 is a schematic view of a lock body according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of the lock body of FIG. 6;

fig. 8 is a side view of the lock body of fig. 7.

In the figure:

10. a housing; 11. a front panel;

20. a door body;

30. a door lock; 31. a lock body; 32. a claw; 33. a slide block;

341. a coil; 342. a moving member; 343. an adapter;

351. a trigger; 352. a pull rod; 3521. a protruding portion; 353. a pull rope; 354. a sliding shaft.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 5, an embodiment of the present invention provides a clothes dryer, including a housing 10 and a door 20, wherein the housing 10 includes a front panel 11, a clothes putting opening is formed on the front panel 11, a drum is located in the housing 10, and the clothes putting opening faces an inner cavity of the drum; the clothes putting opening is provided with a door body 20 for closing or opening the clothes putting opening, one side of the door body 20 is hinged with the front panel 11, and the other side is locked or unlocked with the front panel 11 through a door lock 30.

The door lock 30 includes a lock body 31 and a hook, the lock body 31 is disposed at the back of the front panel 11, the hook is disposed at the inner side of the door body 20, a locking portion for inserting and locking the hook is disposed on the lock body 31, the front panel 11 is provided with a jack corresponding to the locking portion, the front end of the locking portion is disposed in the jack in a penetrating manner and protrudes out of the outer surface of the front panel 11, and the hook can be inserted into the locking portion through the jack.

Referring to fig. 6 to 8, a jaw 32 is provided in the locking portion, the jaw 32 is rotatably connected with the lock body 31, and when the door hook is inserted into the locking portion, the jaw 32 can be engaged with the door hook to prevent the door hook from being separated. Specifically, a supporting shaft is provided on the lock body 31, and the claw 32 is connected with the supporting shaft through a torsion spring. One side of the jaw 32 is provided with a slider 33, and the slider 33 moves in a straight line to push one end of the jaw 32, so that the jaw 32 rotates around the support shaft.

The lock body 31 is provided with an unlocking mechanism which is controlled by current and can drive the slider 33 to move. Specifically, the unlocking mechanism includes a coil 341, a moving member 342, and an adapter 343, where the coil 341 is fixedly disposed with the lock body 31, the moving member 342 can extend and retract along a straight line under the driving of the coil 341, the adapter 343 is fixedly connected with the moving member 342, and the adapter 343 is matched with the sliding block 33 in an inclined plane, so as to drive the sliding block 33 to move.

The moving member 342 is connected with the compression spring, and in the forward power-on state of the coil 341, the moving member 342 extends to drive the switching member 343 to move, and the switching member 343 transmits motion to the sliding block 33, so that the sliding block 33 pushes the clamping jaw 32 to rotate, and further the clamping jaw 32 is locked, and at the moment, the spring connected with the sliding block 33 is compressed.

In the sudden power-off state, the moving member 342 cannot retract itself due to the compression spring, and thus the claw 32 always grips the door hook. The mover 342 can be retracted in the reverse power-on state of the coil 341.

The unlocking mechanism further includes an unlocking button provided on the surface of the housing 10 of the clothes dryer, the coil 341 can be reversely powered by pressing the unlocking button, the coil 341 drives the moving member 342 to retract, and further the slider 33 is reset, the claw 32 is disengaged from the door hook, and the door body 20 can be opened at this time. The specific working principle of the unlocking button is the prior art.

The clothes dryer further comprises an emergency mechanism, the emergency mechanism comprises a trigger 351, a pull rod 352, a pull rope 353 and a sliding shaft 354, the sliding shaft 354 is fixedly connected with the front panel 11, the pull rope 353 bypasses the sliding shaft 354, the sliding shaft 354 plays a role in guiding and supporting the pull rope 353, one end of the pull rope 353 is connected with the trigger 351, the other end of the pull rope 353 is connected with the pull rod 352, and the pull rod 352 is connected with the lock body 31. The triggering piece 351 can drive the pull rope 353 to move, and then drive the pull rod 352 to move, the pull rod 352 is provided with the protruding portion 3521, and the protruding portion 3521 can extend into the lock body 31 to trigger the moving piece 342, so that the moving piece 342 is retracted.

Specifically, the trigger 351 includes a slide button and a spring, the slide button is slidably connected to the front panel 11, and by pulling the slide button, the pull cord 353 can be driven to pull the pull rod 352, and when the slide button is released, the trigger is reset under the action of the spring.

The slide button is arranged at the bottom of the front panel 11 to prevent the child from touching by mistake. The spring is arranged so that the slide Niu Huadong can be driven only by a certain external force applied to the slide button, and the rigidity of the spring can be increased to prevent the child from touching the slide.

The embodiment of the invention provides a control method of a clothes dryer door lock 30, which comprises the following steps:

when the clothes dryer starts to work, judging whether the load weight is larger than the preset weight, if so, controlling the door lock 30 to be in a locking state, and otherwise, controlling the door lock 30 to be in an unlocking state.

If the load weight is smaller than the preset weight, which means that the clothes are less, the door lock 30 is controlled to be in an unlocking state, so that a user can conveniently take and put the clothes; if the load weight is greater than the preset weight, indicating that there are more clothes, the control door lock 30 is in a locked state, preventing the clothes from pushing up the door body 20.

The load weight can be detected by the existing sensor, and the description thereof is omitted. The control door lock 30 is in a locked state, i.e., the control coil 341 is energized, so that the claw 32 is locked to the door hook. The control door lock 30 is in an unlocked state, i.e., the control coil 341 is reversely energized, so that the claw 32 is disengaged from the door hook.

It can be known that the state of the control door lock 30 mentioned in the present embodiment is performed in the case where the door body 20 is closed, and the state of the control door lock 30 does not exist when the door body 20 is opened.

The load weight is detected while the door lock 30 is in the unlocked state and the dryer is in operation, and the door lock 30 is controlled to be in the locked state when the load weight is greater than a preset weight. Since a user may add laundry into the dryer during operation of the dryer such that the load weight is changed, it is necessary to detect the load weight again and control the door lock 30 in a locked state when the laundry exceeds a preset weight, preventing the laundry from pushing up the door body 20.

The detected load weight may be: the state of the door body 20 is detected, and if the door body 20 is opened and closed for a first set period of time, the primary load weight is detected. When the clothes dryer starts to operate, the primary load weight is detected, the state of the door body 20 can be detected during the operation of the clothes dryer, if the door body 20 is opened, clothes can be added or taken away by a user, and after the door body 20 is opened and closed, the primary load weight is detected so as to control the state of the door lock 30.

If the door 20 is opened and not closed for longer than the first set period, the alarm device is triggered. The first set time period is set, so that the user may open the door body 20 for a long time, and the clothes drying process is not stopped without closing the door, which affects the clothes drying effect.

The opening of the door 20 during the operation of the dryer mentioned in this embodiment means that the drying process is not suspended, i.e., the opening of the door 20 during the operation of the drying process. If the clothes dryer receives the pause instruction and detects that the door body 20 is opened, the alarm device is not required to be triggered when the first set time period is exceeded.

The detected load weight may also be: and detecting the load weight once every second set time interval so as to acquire the change of the load weight in time. Of course, if the load weight is detected to be greater than the preset weight, the door lock 30 needs to be controlled to be in the locked state when the door body 20 is closed.

In general, the dryer can always perform the drying process to the end without detecting the load weight during the operation of the dryer while the door lock 30 is in the locked state.

According to the actual configuration of the dryer, the load weight is detected while the door lock 30 is in the locked state and the dryer is in operation, and the door lock 30 is controlled to be in the unlocked state when the load weight is less than the preset weight, as conditions permit. Since the laundry is dried as the dryer operates, the weight of the laundry is reduced, at which time the user can be allowed to add the laundry again.

In the unlocked state of the door lock 30, the user can directly pull the door body 20 open so that the door hook is disengaged from the locking portion.

When the door lock 30 is in the locked state and energized, the door lock 30 can be opened by the unlocking mechanism. Namely, by pressing the unlocking button, the coil 341 can be controlled to be reversely electrified, so that the moving member 342 is retracted, and then the switching member 343 is driven to move, so that the sliding block 33 is reset under the action of the spring, and then the claw 32 rotates under the action of the torsion spring to be separated from the door hook.

With the door lock 30 in the locked state and powered off, the door lock 30 can be opened by an emergency mechanism. Namely, by pulling the sliding button, the pull rope 353 can be driven to pull the pull rod 352, so that the protrusion 3521 on the pull rod 352 stretches into the lock body 31 to trigger the moving member 342, so that the moving member 342 retracts, and the sliding block 33 resets under the action of the spring, so that the claw 32 is separated from the door hook under the action of the torsion spring.

Example two

For simplicity, only the points of distinction between the second embodiment and the first embodiment will be described. The difference is that a storage battery is arranged in the clothes dryer, in the working process of the clothes dryer, if the power is cut off, the storage battery in the clothes dryer supplies power to the door lock 30, so that the door lock 30 is in an electrified state, and if the door lock 30 is locked, the door lock 30 can be unlocked through an unlocking mechanism.

Of course, the battery is not limited to powering the door lock 30, and the battery may power the entire dryer so that the drying process continues.

Be provided with the pilot lamp on the dryer, indicate power supply mode through the pilot lamp, the user can learn whether the power supply is supplied with power or battery power supply according to the colour of pilot lamp, and the user of being convenient for in time operates, under battery power supply's circumstances, the user can in time stop the clothes drying procedure or reduce the clothes drying duration to prevent that the electric quantity in the battery from exhausting.

The indicator lights may be colored differently to indicate different power modes.

During operation of the dryer, if the battery is exhausted, i.e., the dryer is powered off, the door 20 can be opened by the emergency mechanism.

Example III

For simplicity, only the points of distinction of the third embodiment from the first embodiment will be described. The difference is that an indication lamp is provided on the dryer, by which the state of the door lock 30 is indicated. The user can know the state of the door lock 30 according to the indicator light, so that the user can operate conveniently. When the user knows that the dryer is in the unlocked state, the door 20 may be opened to add or remove laundry, if necessary. When the user knows that the dryer is in the locked state, the door 20 is not opened if not necessary, and the door 20 can be opened by the unlocking mechanism if necessary.

The indicator light has various colors, and the user can know the state of the door lock 30 according to the color of the indicator light. Alternatively, a plurality of indicator lamps may be provided, each indicator lamp corresponding to a different state, and the user may learn the state of the door lock 30 according to the opened indicator lamp.

The indicating lamp can indicate a locking state and an unlocking state, wherein the locking state can be divided into a battery power supply locking state and a power supply locking state, and the unlocking state can be divided into a battery power supply unlocking state and a power supply unlocking state, so that a user can know the working condition of the clothes dryer in time.

The embodiment of the invention also provides a clothes dryer which is controlled by adopting the control method of the clothes dryer door lock 30. Not only is the clothes taken and put by a user convenient, but also the clothes can be prevented from being pushed against the door body 20, and the door can be opened through an emergency mechanism in case of emergency, so that the use of the clothes is convenient for the user.

The above embodiments merely illustrate the basic principle and features of the present invention, and the present invention is not limited to the above embodiments, but may be varied and altered without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A dryer door lock control method, comprising:

when the clothes dryer starts to work, judging whether the load weight is larger than the preset weight, if so, controlling the door lock to be in a locking state, otherwise, controlling the door lock to be in an unlocking state;

detecting the load weight when the door lock is in an unlocking state and the clothes dryer works, and controlling the door lock to be in a locking state when the load weight is larger than a preset weight, wherein the detecting the load weight comprises the following steps: detecting the state of a door body, and detecting the weight of a primary load if the door body is opened and closed within a first set time length;

if the door body is opened and the door body is not closed beyond a first set time length, an alarm device is triggered, and if the clothes dryer receives a pause instruction and detects that the door body is opened, the door body is opened beyond the first set time length, and the alarm device does not need to be triggered.

2. The clothes dryer door lock control method of claim 1, wherein the detecting the load weight includes: the load weight is detected once every second set period of time.

3. The clothes dryer door lock control method according to claim 1, wherein the door lock can be opened by an unlocking mechanism with the door lock in a locked state and energized.

4. The clothes dryer door lock control method according to claim 1, wherein the door lock can be opened by an emergency mechanism in a case where the door lock is in a locked state and is powered off.

5. The clothes dryer door lock control method according to claim 1, wherein an indication lamp is provided on the clothes dryer, and a state of the door lock can be indicated by the indication lamp.

6. The door lock control method of the clothes dryer according to any one of claims 1 to 5, wherein the door lock is powered by a battery inside the clothes dryer if power is turned off during operation of the clothes dryer.

7. A clothes dryer, characterized in that it is controlled by the clothes dryer door lock control method according to any one of claims 1 to 6.