Electric auxiliary heating temperature control type natural ventilation clothes washing and drying equipment

Abstract

The invention relates to the technical field of clothes washing and drying equipment, in particular to electric auxiliary heating temperature control type natural ventilation clothes washing and drying equipment, and aims to solve the problems of complex structure and high maintenance cost of the conventional clothes washing and drying equipment which is controlled by a motor to realize ventilation. The electric auxiliary heating temperature control type natural ventilation clothes washing and drying equipment comprises a barrel and an air door assembly communicated with the interior of the barrel, the air door assembly comprises an air door body, a valve plate and a temperature control assembly, the temperature control assembly comprises a temperature control spring and a low-voltage direct-current circuit, and at least one part of the temperature control spring is correspondingly connected into the low-voltage direct-current circuit; the temperature control spring stretches out and draws back along with temperature changes and drives the valve plate to block or open the ventilation channel in a translation and / or rotation mode. The temperature and stretching of the temperature control spring can be accurately controlled through the low-voltage direct-current circuit, and quick response is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of washing and drying equipment, and in particular provides an electric auxiliary heating temperature-controlled natural ventilation washing and drying equipment. Background Art

[0002] Currently, washing machines, dryers, and all-in-one washers and dryers on the market fail to quickly cool down the drum after the cycle ends. Hot air continues to evaporate moisture from the load / drum, causing noticeable heat and humidity to be felt at the drum opening and inside the drum when the user opens the door to retrieve clothes. Condensation sometimes forms the moment the door is opened, resulting in a poor user experience. Furthermore, if the user does not remove clothes for a long time, the lack of ventilation can easily lead to mold and bacterial growth in the drum.

[0003] The ventilation device of existing washing and drying equipment generally realizes the ventilation function by rotating the valve plate controlled by an electric motor. The technical solution using electric mechanism control requires the separate setting of electric drive and transmission structure, which has a complex structure and high maintenance cost. In actual application, with circuit support, how to control the realization of the ventilation function to achieve low maintenance cost, precise automatic control, fast response and good user experience is a technical problem that needs to be solved by technical personnel in this field.

[0004] Therefore, in view of the problems existing in the above-mentioned prior art, those skilled in the art are in urgent need of an electric auxiliary heating temperature controlled natural ventilation washing and drying equipment. Summary of the Invention

[0005] The present invention aims to solve the above technical problem, that is, to solve the problem that the existing washing and drying equipment uses motor control to achieve ventilation, which has a complex structure and high maintenance cost.

[0006] In a first aspect, the present invention provides an electrically assisted heating temperature-controlled natural ventilation washing and drying device, the washing and drying device comprising a drum and a damper assembly connected to the interior of the drum, the damper assembly comprising a damper body, a valve plate and a temperature control component, the temperature control component comprising a temperature control spring and a low-voltage DC circuit, at least a portion of the temperature control spring being correspondingly connected to the low-voltage DC circuit; the interior of the damper body is a chamber and is provided with ventilation channels respectively connected to the outside world and the interior of the drum, the valve plate being located in the chamber; the temperature control spring expands and contracts with temperature changes, and drives the valve plate to block or open the ventilation channel in a translational and / or rotational manner.

[0007] When the above-mentioned technical solution is adopted, the present invention can energize the temperature control spring through a low-voltage DC circuit. The part of the temperature control spring connected to the low-voltage DC circuit has a certain resistance and heats up and contracts after being energized. The temperature control spring is energized and heated, which has the effect of rapid temperature rise. Therefore, the present invention can accurately control the temperature and expansion and contraction of the temperature control spring and achieve rapid response through the low-voltage DC circuit, and then drive the valve plate to move in a linear and / or rotational manner through the expansion and contraction of the temperature control spring; it should be noted that the temperature control spring is simultaneously expanded and contracted by the combined action of the gas temperature in the chamber and the low-voltage DC circuit; and the control method of the temperature control spring and the low-voltage DC circuit has the beneficial effects of low maintenance cost, precise automatic control, rapid response and good user experience.

[0008] Furthermore, the low-voltage DC circuit includes a low-voltage DC power supply, and the two ends of the temperature control spring in the length direction are provided with wiring terminals and are respectively connected to the positive terminal or the negative terminal of the low-voltage DC power supply.

[0009] Furthermore, the temperature control spring includes a translational telescopic spring, which is correspondingly connected to the low-voltage DC circuit; the ventilation channel includes an air inlet connected to the outside world and an air outlet connected to the inside of the cylinder, and the valve plate is arranged at a position corresponding to the air inlet in the chamber; the upper and lower parts of the valve plate on the opposite sides of the air inlet are both provided with the translational telescopic spring, and the translational telescopic spring expands and contracts along a direction perpendicular to the end face of the air inlet as the temperature changes, and drives the valve plate to block or open the air inlet in a translational manner.

[0010] When adopting the above technical solution, the present invention provides a specific structure in which the temperature control spring drives the valve plate to move horizontally. It can be understood that those skilled in the art can set the specific installation position and number of the translation telescopic springs according to actual conditions, for example, by driving the valve plate to achieve the translation function by at least two symmetrically arranged translation telescopic springs.

[0011] Furthermore, the temperature control spring also includes a rotating telescopic spring, which expands and contracts along the circumferential direction of the rotation of the valve plate with temperature changes, and the rotating telescopic spring and the translational telescopic spring are connected to the low-voltage DC circuit in parallel; the upper part of the valve plate opposite to the air inlet is provided with the translational telescopic spring; the lower part of the valve plate and the air inlet is sequentially provided with the rotating telescopic spring and the translational telescopic spring, and the corresponding ends of the rotating telescopic spring and the translational telescopic spring are thermally insulated; and the rotating telescopic spring and the translational telescopic spring drive the valve plate to block or open the ventilation channel in a translational and / or rotational manner.

[0012] When adopting the above-mentioned technical solution, the present invention provides a specific structure in which the temperature control spring drives the valve plate to achieve translational movement and rotation. It can be understood that in actual use, the rotation of the valve plate can be achieved by controlling the rotating telescopic spring alone, or the rotation and translation of the valve plate can be achieved by simultaneously controlling the rotating telescopic spring and the translational telescopic spring.

[0013] Furthermore, the temperature control assembly also includes a translation guide assembly and a rotation guide assembly; the translation telescopic spring is correspondingly sleeved on the outside of the translation guide assembly, and the rotation telescopic spring is correspondingly sleeved on the outside of the rotation guide assembly.

[0014] Furthermore, the inner wall of the damper body is recessed and formed with a first assembly groove corresponding to the position above the air inlet, and is recessed and formed with a second assembly groove corresponding to the position below the air inlet; the upper part of the valve plate is provided with a rotating connection end corresponding to the first assembly groove, and the lower part is provided with a third assembly groove corresponding to the second assembly groove; the first assembly groove is provided with the translation guide assembly and the translation telescopic spring, and one end of the translation guide assembly is correspondingly connected to the rotating connection end of the valve plate; the translation guide assembly and the rotation guide assembly are sequentially installed between the second assembly groove and the third assembly groove; and the translation guide assembly and one end of the rotation guide assembly are correspondingly thermally insulated and connected; the outer side of the translation guide assembly is provided with the translation telescopic spring, and the outer side of the rotation guide assembly is provided with the rotation telescopic spring.

[0015] When adopting the above technical solution, the present invention provides a guide structure for the temperature control spring, wherein the translation guide assembly guides the translation of the valve plate and the extension and contraction of the translation telescopic spring, and the rotation guide assembly guides the rotation of the valve plate and the extension and contraction of the rotation telescopic spring.

[0016] Furthermore, the translation guide assembly includes a first translation guide rod and a second translation guide rod which are slidably inserted in a direction perpendicular to the end face of the air inlet; the rotation guide assembly includes a first arc guide rod and a second arc guide rod which are slidably inserted in the circumferential direction of rotation of the valve plate; the second arc guide rod is correspondingly slidably inserted in the first arc guide rod, at least a part of the first arc guide rod is located in the second translation guide rod, and the second translation guide rod is correspondingly slidably inserted in the first translation guide rod.

[0017] When adopting the above technical solution, the present invention provides specific structural forms of the translation guide assembly and the rotation guide assembly. In the blocked state, the second arc guide rod, the first arc guide rod, the second translation guide rod and the first translation guide rod are inserted, received and retracted in sequence; it should be noted that those skilled in the art can set the specific number of translation guide rods and arc guide rods as needed.

[0018] Furthermore, the low-voltage DC circuit also includes a first switch, a second switch, and a third switch; the first switch, the second switch, and the third switch are connected to the low-voltage DC power supply in parallel; the first switch is arranged in series with the translational telescopic spring to form a first control circuit, and the second switch is arranged in series with the rotational telescopic spring to form a second control circuit; the third switch is a linked switch, and its two control ends are respectively arranged in series with the translational telescopic spring and the rotational telescopic spring to form a third control circuit.

[0019] When adopting the above technical solution, the present invention provides a specific connection structure of a low-voltage DC circuit. In actual use, the first switch and the second switch can be used to control the power supply of the translational telescopic spring and the rotational telescopic spring respectively, and the third switch can also be used to control the power supply of the translational telescopic spring and the rotational telescopic spring at the same time.

[0020] Furthermore, valve plate magnets are provided on the upper and lower parts of the valve plate, and main body magnets corresponding to the valve plate magnets are provided on the inner wall of the damper body; in the blocked state, the valve plate magnets and the main body magnets are attracted to each other.

[0021] Furthermore, the translational telescopic spring and the rotational telescopic spring are both made of a memory alloy having a high-temperature contraction characteristic. It should be noted that the translational telescopic spring and the rotational telescopic spring both have a high-temperature contraction characteristic and a low-temperature expansion characteristic.

[0022] When the above technical solution is adopted, the beneficial effects of the present invention are:

[0023] (1) The temperature control spring of the present invention is connected to a low-voltage DC circuit to realize power-on control. After the temperature control spring is energized, on the one hand, it has a certain resistance value and generates heat after the current passes through it. The temperature rise is fast and can achieve rapid response. On the other hand, when the adjacent coils of the temperature control spring are energized, the same direction of current attracts each other, which can also achieve rapid response and contraction. When the temperature control spring is stopped from being energized, the temperature of the temperature control spring gradually decreases and gradually extends. Therefore, the temperature control spring of the present invention is controlled by the power supply of the low-voltage DC circuit, and realizes rapid response and contraction and precise control under the action of its own heat and the Ampere force of the magnetic field, that is, the expansion and contraction of the temperature control spring in each program operation stage can be accurately controlled by the low-voltage DC circuit.

[0024] (2) The present invention drives the valve plate to block or open the ventilation channel in a translational manner through a translational telescopic spring; the translational guide assembly slides and plugs in the direction perpendicular to the end face of the air inlet, and under the elastic force of the translational telescopic spring, the translational guide assembly drives the valve plate to expand and contract in a translational manner. In the open state, the chamber is ventilated to the outside world along the four sides of the valve plate, and the ventilation effect is good, and the high-temperature moisture in the chamber can be quickly discharged.

[0025] (3) The present invention drives the valve plate to block or open the ventilation channel in a translational and rotational manner through the combined action of the translational telescopic spring and the rotational telescopic spring; the translational telescopic spring and the rotational telescopic spring are connected to the low-voltage DC circuit in a parallel manner, and the translational telescopic spring and the rotational telescopic spring can be stretched at the same time to realize the translational and rotational opening of the ventilation channel by the valve plate, so that the ventilation channel is at the maximum opening degree; the translational telescopic spring or the rotational telescopic spring can also be electrically heated separately, thereby facilitating the user to control the expansion and contraction of the temperature control spring and the opening degree of the ventilation channel at each program operation stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0027] Figure 1 Schematic diagram of the installation structure of the damper assembly of the washing and drying equipment of the present invention;

[0028] Figure 2 Schematic diagram of the structure of the valve plate of the damper assembly of the present invention in a blocked state;

[0029] Figure 3 Schematic diagram of the structure of the valve plate of the present invention in a translationally open state;

[0030] Figure 4 This is a schematic structural diagram of the valve plate of the present invention in a rotationally opened state;

[0031] Figure 5 It is a schematic structural diagram of the valve plate of the present invention in the translational and rotational opening states;

[0032] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle;

[0033] Figure 7 It is a front view of the interior of the damper body of the present invention;

[0034] Figure 8 is a front view of the valve plate of the present invention;

[0035] Figure 9 This is a schematic diagram of the connection of the temperature control spring of the present invention to a low-voltage DC circuit;

[0036] Figure 10 It is a schematic structural diagram of the translation guide assembly and the rotation guide assembly of the present invention in a retracted state;

[0037] Figure 11 is a schematic structural diagram of the translation guide assembly of the present invention in an extended state;

[0038] Figure 12is a schematic structural diagram of the rotary guide assembly of the present invention in an extended state;

[0039] Figure 13 It is a schematic structural diagram of the translation guide assembly and the rotation guide assembly of the present invention in an extended state;

[0040] Figure 14 It is a structural schematic diagram of the translation guide assembly connected to the rotation connection end of the valve plate of the present invention in a retracted state;

[0041] Figure 15 It is a structural schematic diagram of the translation guide assembly connected to the rotation connection end of the valve plate of the present invention in an extended state;

[0042] Reference Signs List :

[0043] 1- damper body; 2- valve plate; 3- temperature control assembly; 11- chamber; 12- air inlet; 13- air outlet; 14- first assembly slot; 15- second assembly slot; 16- main body magnet; 17- rear cover; 21- rotating connection end; 22- third assembly slot; 23- valve plate magnet; 31- temperature control spring; 32- low voltage DC circuit; 33- translation guide assembly; 34- rotation guide assembly; 35- thermal insulation board; 100- damper assembly; 200- panel; 300- sealing ring; 311- translation telescopic spring; 312- rotation telescopic spring; 321- first switch; 322- second switch; 323- third switch; 324- resistor; 331- first translation guide rod; 332- second translation guide rod; 333- rotating part; 341- first arc guide rod; 342- second arc guide rod. DETAILED DESCRIPTION

[0044] The principles and features of the present invention are described below with reference to the accompanying drawings. The embodiments given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0045] like Figures 1 to 15 As shown, the embodiment of the present invention discloses an electric auxiliary heating temperature controlled natural ventilation washing and drying device, the washing and drying device includes a drum and a damper assembly 100 connected to the interior of the drum, as shown in FIG. Figure 1As shown, the damper assembly 100 is installed on the inner side of the washing and drying equipment panel 200 and is connected to the outside world, and is located above the panel sealing ring 300 and is connected to the cylinder; the damper assembly 100 includes a damper body 1, a valve plate 2 and a temperature control component 3. The interior of the damper body 1 is a chamber 11 and is provided with ventilation channels that are respectively connected to the outside world and the inside of the cylinder. The valve plate 2 and the temperature control component 3 are both installed in the chamber 11. The temperature control component 3 includes a temperature control spring 31 and a low-voltage DC circuit 32. At least a part of the temperature control spring 31 is correspondingly connected to the low-voltage DC circuit 32. The temperature control spring 31 can expand and contract with temperature changes and itself is energized and heated in the low-voltage DC circuit 32 to quickly heat up. The expansion and contraction of the temperature control spring 31 can drive the valve plate 2 to achieve the sealing or opening of the ventilation channel in a translational and / or rotational manner for ventilation.

[0046] To further optimize the above technical solution, a specific connection method for connecting the temperature control spring 31 to the low-voltage DC circuit 32 is to provide terminals at both ends of the temperature control spring 31 along its length, and connect them to the positive terminal or the negative terminal of the low-voltage DC power supply to form the low-voltage DC circuit 32. It should be noted that those skilled in the art can specifically design the connection method between the terminals and the low-voltage DC power supply. For example, a plug-in method can be used to ensure the stability of the connection through the elastic force after plugging, or a clamping method can be used to achieve a stable connection through clamping force.

[0047] In order to further optimize the above technical solution, Figure 2 and Figure 3 As shown, the temperature control spring 31 includes a translational telescopic spring 311, and the translational telescopic spring 311 is correspondingly connected to the low-voltage DC circuit 32; the specific structure of the ventilation channel of the present invention includes an air inlet 12 connected to the outside world and an air outlet 13 connected to the inside of the cylinder, and the valve plate 2 is located at a position corresponding to the air inlet 12 in the chamber 11, and the sealing or opening of the air inlet 12 is controlled by the valve plate 2; the upper and lower parts of the valve plate 2 on the opposite side of the air inlet 12 are both provided with a translational telescopic spring 311, and the translational telescopic spring 311 expands and contracts along a direction perpendicular to the end face of the air inlet 12 as the temperature changes, and drives the valve plate 2 to seal or open the air inlet 12 in a translational manner. It is understandable that those skilled in the art can set the number of the translational telescopic springs 311 that push the valve plate 2 to translate as needed. For example, four translational telescopic springs 311 symmetrically arranged up and down can be used to push the valve plate 2 to block or open the air inlet 12. When the low-voltage DC circuit 32 is turned on, the translational telescopic springs 311 themselves heat up and contract, driving the valve plate 2 to translate and block the air inlet 12. When the low-voltage DC circuit 32 is disconnected, the translational telescopic springs 311 gradually extend and push the valve plate 2 to translate and open the air inlet 12 to achieve natural ventilation. Figure 3 As shown, the damper body 1 further includes a rear cover 17 . During installation, the valve plate 2 and the temperature control assembly 3 can be installed in the chamber 11 accordingly by opening the rear cover 17 .

[0048] In order to further optimize the above technical solution, Figures 4 to 6 As shown, the temperature control spring 31 also includes a rotating telescopic spring 312, which expands and contracts along the circumferential direction of the rotation of the valve plate 2 as the temperature changes, and the translational telescopic spring 311 and the rotating telescopic spring 312 are connected in parallel to the low-voltage DC circuit 32; the upper part of the valve plate 2 on the side opposite to the air inlet 12 is provided with a translational telescopic spring 311; the lower part of the valve plate 2 on the side opposite to the air inlet 12 is sequentially provided with a rotating telescopic spring 312 and a translational telescopic spring 311, and the corresponding ends of the rotating telescopic spring 312 and the translational telescopic spring 311 are thermally insulated and connected; and the rotating telescopic spring 312 and the translational telescopic spring 311 drive the valve plate 2 to block or open the ventilation channel in a translational and / or rotational manner. It should be noted that the translational telescopic spring 311 can independently drive the valve plate 2 to block or open the ventilation channel in a translational manner, the rotational telescopic spring 312 can independently drive the valve plate 2 to block or open the ventilation channel in a rotational manner, and the translational telescopic spring 311 and the rotational telescopic spring 312 can jointly drive the valve plate 2 to block or open the ventilation channel in a combination of translational and rotational manner.

[0049] In order to further optimize the above technical solution, Figures 10 to 15 As shown, the temperature control component 3 also includes a translation guide component 33 and a rotation guide component 34; the translation telescopic spring 311 is correspondingly sleeved on the outside of the translation guide component 33, and the rotation telescopic spring 312 is correspondingly sleeved on the outside of the rotation guide component 34; it can be understood that the translation guide component 33 has a guiding effect on the translational expansion and contraction of the translation telescopic spring 311, and the rotation guide component 34 has a guiding effect on the rotational expansion and contraction of the rotation telescopic spring 312 along the circumferential direction.

[0050] In order to further optimize the above technical solution, Figure 5 As shown, the inner wall of the damper body 1 is recessed with a first assembly groove 14 at a position corresponding to the top of the air inlet, and is recessed with a second assembly groove 15 at a position corresponding to the bottom of the air inlet 12; the upper portion of the valve plate 2 is provided with a rotating connection end 21 corresponding to the first assembly groove 14, and the lower portion is provided with a third assembly groove 22 corresponding to the second assembly groove 15; a translation guide assembly 33 and a translation telescopic spring 311 are installed in the first assembly groove 14, and one end of the translation guide assembly 33 is correspondingly connected to the rotating connection end 21 of the valve plate 2; a translation guide assembly 33 and a rotation guide assembly 34 are sequentially installed between the second assembly groove 15 and the third assembly groove 22; and one end of the translation guide assembly 33 and the rotation guide assembly 34 are correspondingly connected in thermal insulation; the outer side of the translation guide assembly 33 is provided with a translation telescopic spring 311, and the outer side of the rotation guide assembly 34 is provided with a rotation telescopic spring 312. It should be noted that, in the blocked state, as Figure 2 and Figure 3 As shown, at least a portion of the translational telescopic spring 311 is correspondingly contracted into the first assembly slot 14 or the second assembly slot 15 , and at least a portion of the rotational telescopic spring 312 is contracted into the third assembly slot 22 .

[0051] In order to further optimize the above technical solution, Figures 10 to 15 As shown, the translation guide assembly 33 includes a first translation guide rod 331 and a second translation guide rod 332 that slide linearly in a direction perpendicular to the end surface of the air inlet 12; the rotation guide assembly 34 includes a first arcuate guide rod 341 and a second arcuate guide rod 342 that slide along the circumferential direction of the valve plate 2; the second arcuate guide rod 342 slides correspondingly into the first arcuate guide rod 342, at least a portion of the first arcuate guide rod 341 is located in the second translation guide rod 332, and the second translation guide rod 332 slides correspondingly into the first translation guide rod 331. Figure 5 As shown, the outer sides of the first translation guide rod 331 and the second translation guide rod 332 are provided with a translation telescopic spring 311. When the valve plate 2 is opened in a translation manner, the second translation guide rod 332 slides out of the first translation guide rod 331 in a direction perpendicular to the end face of the air inlet 12, and pushes the valve plate 2 to open in a translation manner under the elastic force of the translation telescopic spring 311; the outer sides of the first arc guide rod 341 and the second arc guide rod 342 are provided with a rotation telescopic spring 312. When the valve plate 2 is opened in a rotation manner, the second arc guide rod 342 slides out of the first arc guide rod 341 in the circumferential direction of rotation of the valve plate 2, and pushes the valve plate 2 to rotate and open under the elastic force of the rotation telescopic spring 312.

[0052] In order to further optimize the above technical solution, Figure 9As shown, the low-voltage DC circuit 32 also includes a first switch 321, a second switch 322, and a third switch 323. The first switch 321 is connected in series with the translational telescopic spring 311 to form a first control circuit, while the second switch 322 is connected in series with the rotational telescopic spring 312 to form a second control circuit. The third switch 323 is a linked switch, and its two control terminals are connected in series with the translational telescopic spring 311 and the rotational telescopic spring 312 to form a third control circuit. The first, second, and third switches 321, 322, and 323 are connected in parallel and are all connected to a low-voltage DC power supply. It should be noted that the multiple translational telescopic springs 311 can be connected in parallel or in series and are all powered by the first switch 321, while the multiple rotational telescopic springs 312 can be connected in parallel or in series and are all powered by the second switch 322. Alternatively, the third switch 323 can be used to simultaneously power the translational telescopic springs 311 and the rotational telescopic springs 312. A resistor 324 can also be provided in the main circuit of the low-voltage DC circuit 32 to regulate voltage and prevent short circuits. In order to further optimize the above technical solution, Figure 7 and Figure 8 As shown, valve plate magnets 23 are provided on both the upper and lower portions of the valve plate 2, and main body magnets 16 are provided on the inner wall of the damper body 1, corresponding to the valve plate magnets 23. In the blocked state, the valve plate magnets 23 and main body magnets 16 engage to ensure a tight seal. In one specific embodiment, a sealing portion is snap-fitted to the side of the valve plate 2 near the air inlet 12. This sealing portion is adapted to seal with the air inlet 12, ensuring a tight seal in the blocked state.

[0053] To further optimize the above technical solution, the translational telescopic spring 311 and the rotational telescopic spring 312 are both made of a memory alloy having the characteristics of high-temperature contraction and low-temperature expansion. Specifically, the translational telescopic spring 311 and the rotational telescopic spring 312 are made of CuZnAl memory alloy.

[0054] Example 1

[0055] The damper assembly 100 of this embodiment includes a damper body 1, such as Figure 7 As shown, the inner wall of the damper body 1 is symmetrically provided with a first assembly groove 14 and a second assembly groove 15 corresponding to the positions above and below the air inlet 12, and the first assembly groove 14 and the second assembly groove 15 are both installed with a translation guide component 33 and a translation telescopic spring 311; in actual application, the user can realize low-voltage DC auxiliary heating control of the translation telescopic spring according to the program running stage.

[0056] When the washing and drying device program just starts to run, when the temperature in the chamber 11 is lower than the deformation temperature of the translation telescopic spring 311, the first switch 321 can be used to control the translation telescopic spring 311 to be energized and heat itself. The translation telescopic spring 311 heats up quickly and can quickly contract to drive the valve plate 2 to translate toward the air inlet 12 to block the air inlet 12. After the washing and drying device program starts, when the temperature in the chamber 11 is higher than the deformation temperature of the translation telescopic spring 311, the first switch 321 can be used to control the translation telescopic spring 311 to be de-energized. At this time, The translational telescopic spring 311 is always in a contracted state under the action of the high-temperature gas in the chamber 11; when the washing and drying device program is completed, the temperature in the chamber 11 gradually decreases, and the translational telescopic spring 311 gradually expands, driving the valve plate 2 to translate and open the air inlet 12, so that the air inlet 12 and the air outlet 13 are connected to each other for natural ventilation in the drum; when there is no high-temperature moisture or clothing in the washing and drying device drum, the translational telescopic spring 311 can be controlled by the first switch 321 to be energized and contracted, thereby driving the valve plate 2 to translate and block the air inlet 12.

[0057] Example 2

[0058] The difference between this embodiment and embodiment 1 is that Figures 2 to 6 As shown, the temperature control assembly 3 of this embodiment includes a translation telescopic spring 311 , a rotation telescopic spring 312 , a translation guide assembly 33 and a rotation guide assembly 34 .

[0059] like Figure 5 、 Figure 14 and Figure 15 As shown, a translation guide assembly 33 is installed in the first assembly groove 14, and a translation telescopic spring 311 is sleeved on the outer side of the translation guide assembly 33. In the retracted state, the second translation guide rod 332 is retracted into the first translation guide rod 331, and at least a portion of the translation telescopic spring 311 is retracted into the first assembly groove 14; one end of the second translation guide rod 332 is a rotating portion 333 and is rotatably connected to the rotating connection end 21 of the upper portion of the valve plate 2;

[0060] like Figure 5 、 Figure 10-13 As shown, the second assembly groove 15 and the third assembly groove 22 are arranged opposite to each other and are installed with corresponding connected translation guide components 33 and rotation guide components 34. Specifically, the second arc-shaped guide rod 342 is slidably inserted into the first arc-shaped guide rod 341. Part of the first arc-shaped guide rod 341 is located inside the second translation guide rod 332. The second translation guide rod 332 is slidably inserted into the first translation guide rod 331. One end of the second translation guide rod 332 is provided with a heat insulation plate 35; Figure 5 and Figure 6As shown, the translational temperature control spring 311 is sleeved on the outside of the translational guide assembly 33, and its two ends are respectively connected to the bottom of the second assembly groove 15 and the thermal insulation plate 35; the rotational temperature control spring 312 is sleeved on the outside of the rotational guide assembly 34, and its two ends are respectively connected to the groove body of the third assembly groove 22 and the thermal insulation plate 35; in the blocked state, at least a portion of the translational temperature control spring 311 is retracted into the second assembly groove 15, and at least a portion of the rotational temperature control spring 312 is retracted into the third assembly groove 22.

[0061] In actual application, when the washing and drying device program just starts running, the third switch 323 can be used to simultaneously energize the translational telescopic spring 311 and the rotational telescopic spring 312, and both the translational telescopic spring 311 and the rotational telescopic spring 312 will rapidly contract to drive the valve plate 2 to block the air inlet 12; when the washing and drying device is running and the temperature in the chamber 11 is greater than the deformation temperature, the translational temperature control spring 311 and the rotational telescopic spring 312 will continue to be in a contracted state under the action of the high-temperature gas in the chamber 11.

[0062] When the washing and drying program ends, the temperature in the chamber 11 gradually decreases, and the translational telescopic spring 311 and the rotational telescopic spring 312 gradually extend, pushing the valve plate 2 to open in a combination of rotation and translation, thereby maximizing the opening degree of the air inlet 12. The second switch 322 can also be used to heat the rotational telescopic spring 312 alone, and the translational telescopic spring 312 extends to push the valve plate 2 to open the air inlet 12 in a translational manner. In this case, all four sides of the valve plate 2 are connected to the outside world, realizing natural ventilation. The first switch 321 can also be used to heat the translational telescopic spring 311 alone, and in this case, only the rotational telescopic spring 312 extends to push the valve plate 2 to rotate and open the air inlet 12. The air inlet 12 is opened by a small rotation of the valve plate 2. In this embodiment, the rotational telescopic spring 312 pushes the valve plate 2 to rotate by 30 degrees. When there is no clothing and high temperature and humidity inside the washing and drying device, and ventilation is no longer required, the translational telescopic spring 311 and the rotational telescopic spring 312 can be heated simultaneously, thereby driving the valve plate 2 to block the air inlet 12.

[0063] Thus, the user can control the opening degree of the air inlet 12 according to actual usage conditions, and control the power supply of the linear telescopic spring 311 and the rotating telescopic spring 312 through the low-voltage DC circuit 32. When powered on, the linear telescopic spring 311 and the rotating telescopic spring 312 themselves are energized to generate heat and contract, and the temperature rise is fast. The current flow direction between adjacent turns of the spring is the same, and they also have a tendency to contract under the action of the magnetic field. Therefore, the present invention can achieve precise control and rapid response to the power-on temperature of the temperature control spring 31 through the low-voltage DC circuit 32, and then can control the degree of blocking and opening of the ventilation channel according to different stages.

[0064] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. An electric auxiliary heating temperature-controlled natural ventilation washing and drying device, the washing and drying device comprising a drum and a damper assembly (100) connected to the interior of the drum, the damper assembly (100) comprising a damper body (1), a valve plate (2) and a temperature control component (3), characterized in that: The temperature control component (3) comprises a temperature control spring (31) and a low-voltage DC circuit (32), and at least a portion of the temperature control spring (31) is correspondingly connected to the low-voltage DC circuit (32); The interior of the damper body (1) is a chamber (11) and is provided with ventilation passages respectively connected to the outside and the interior of the cylinder; the valve plate (2) is located in the chamber (11); the temperature control spring (31) expands and contracts with temperature changes, and drives the valve plate (2) to block or open the ventilation passage in a translational and / or rotational manner.

2. The electric auxiliary heating temperature controlled natural ventilation washing and drying equipment according to claim 1, characterized in that: The low-voltage DC circuit (32) comprises a low-voltage DC power supply, and the two ends of the temperature control spring (31) in the length direction are provided with connection terminals which are respectively connected to the positive terminal or the negative terminal of the low-voltage DC power supply.

3. The electric auxiliary heating temperature controlled natural ventilation washing and drying equipment according to claim 2 is characterized in that: The temperature control spring (31) comprises a translational telescopic spring (311), and the translational telescopic spring (311) is correspondingly connected to the low-voltage DC circuit (32); The ventilation passage comprises an air inlet (12) communicating with the outside and an air outlet (13) communicating with the interior of the cylinder; the valve plate (2) is arranged at a position corresponding to the air inlet (12) in the chamber (11); the upper part and the lower part of the valve plate (2) on the side opposite to the air inlet (12) are both provided with the translational telescopic spring (311); the translational telescopic spring (311) expands and contracts in a direction perpendicular to the end face of the air inlet (12) as the temperature changes, and drives the valve plate (2) to block or open the air inlet (12) in a translational manner.

4. The electric auxiliary heating temperature controlled natural ventilation washing and drying equipment according to claim 3 is characterized in that: The temperature control spring (31) further comprises a rotating telescopic spring (312), wherein the rotating telescopic spring (312) is expanded and contracted along the circumferential direction of rotation of the valve plate (2) as the temperature changes, and the rotating telescopic spring (312) and the translational telescopic spring (311) are connected in parallel to the low-voltage DC circuit (32); The upper portion of the valve plate (2) on the side opposite to the air inlet (12) is provided with the translational telescopic spring (311); the lower portion of the valve plate (2) on the side opposite to the air inlet (12) is provided with the rotational telescopic spring (312) and the translational telescopic spring (311) in sequence, and the corresponding ends of the rotational telescopic spring (312) and the translational telescopic spring (311) are thermally insulated and connected; and the rotational telescopic spring (312) and the translational telescopic spring (311) drive the valve plate (2) to block or open the ventilation channel in a translational and / or rotational manner.

5. The electric auxiliary heating temperature controlled natural ventilation washing and drying equipment according to claim 4, characterized in that: The temperature control component (3) further comprises a translation guide component (33) and a rotation guide component (34); the translation telescopic spring (311) is correspondingly sleeved on the outside of the translation guide component (33), and the rotation telescopic spring (312) is correspondingly sleeved on the outside of the rotation guide component (34).

6. The electric auxiliary heating temperature control natural ventilation washing and drying equipment according to claim 5, characterized in that: The inner wall of the damper body (1) is concavely formed with a first assembly groove (14) at a position corresponding to the position above the air inlet (12), and is concavely formed with a second assembly groove (15) at a position corresponding to the position below the air inlet (12); the upper part of the valve plate (2) is provided with a rotating connection end (21) corresponding to the first assembly groove (14), and the lower part is provided with a third assembly groove (22) corresponding to the second assembly groove (15); The translation guide assembly (33) and the translation telescopic spring (311) are installed in the first assembly groove (14), and one end of the translation guide assembly (33) is correspondingly connected to the rotation connection end (21) of the valve plate (2); The translation guide assembly (33) and the rotation guide assembly (34) are installed in sequence between the second assembly groove (15) and the third assembly groove (22); and one end of the translation guide assembly (33) and the rotation guide assembly (34) are correspondingly connected in a heat-insulating manner.

7. The electric auxiliary heating temperature controlled natural ventilation washing and drying equipment according to claim 6, characterized in that: The translation guide assembly (33) comprises a first translation guide rod (331) and a second translation guide rod (332) which are slidably connected in a direction perpendicular to the end surface of the air inlet (12); the rotation guide assembly (34) comprises a first arc-shaped guide rod (341) and a second arc-shaped guide rod (342) which are slidably connected in a circumferential direction of rotation of the valve plate (2); The second arc-shaped guide rod (342) is correspondingly slidably inserted into the first arc-shaped guide rod (341), at least a portion of the first arc-shaped guide rod (341) is located in the second translation guide rod (332), and the second translation guide rod (332) is correspondingly slidably inserted into the first translation guide rod (331).

8. The electric auxiliary heating temperature controlled natural ventilation washing and drying equipment according to claim 4, characterized in that: The low-voltage DC circuit (32) further comprises a first switch (321), a second switch (322) and a third switch (323); the first switch (321), the second switch (322) and the third switch (323) are connected to the low-voltage DC power supply in parallel; The first switch (321) is connected in series with the translational telescopic spring (311) to form a first control circuit, and the second switch (322) is connected in series with the rotational telescopic spring (312) to form a second control circuit; the third switch (323) is a linkage switch, and its two control ends are respectively connected in series with the translational telescopic spring (311) and the rotational telescopic spring (312) to form a third control circuit.

9. The electric auxiliary heating temperature controlled natural ventilation washing and drying equipment according to claim 4, characterized in that: The upper and lower parts of the valve plate (2) are both provided with valve plate magnets (23), and the inner wall of the damper body (1) is provided with a main body magnet (16) corresponding to the valve plate magnet (23); in a blocked state, the valve plate magnet (23) and the main body magnet (16) are correspondingly attracted.

10. The electric auxiliary heating temperature controlled natural ventilation washing and drying device according to any one of claims 4 to 9, characterized in that: The translational telescopic spring (311) and the rotational telescopic spring (312) are both made of a memory alloy material having high-temperature shrinkage characteristics.

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