Dehumidifier

Abstract

The present invention discloses a dehumidifier, which includes a shell, a water tank, a detection device and a detector; the water tank is installed in the shell; the detection device includes a detector and a signal trigger, the detector is arranged on the shell, and the signal trigger is arranged in the water tank, when the water level in the water tank is higher than a preset position, the signal trigger moves to the detection area of ​​the detector; when the water level in the water tank is lower than the preset position, the signal trigger moves outside the detection area of ​​the detector; the controller is electrically connected to the detection device, so as to control the water pump to stop pumping water when the signal trigger is located outside the detection area of ​​the detector. The dehumidifier of the present invention can accurately sense the low water level in the water tank, avoiding the pumping failure of the water pump caused by the water level in the water tank being too low.

Description

Technical Field

[0001] The invention relates to the technical field of air treatment, and in particular to a dehumidifier. Background Art

[0002] With the continuous improvement of living standards, people's requirements for the quality of life are getting higher and higher, and there are certain requirements for the humidity of the air. Dehumidifiers are usually used to reduce the humidity of the air. Dehumidifiers are generally equipped with a water tank to collect water, and the water in the water tank is pumped out by a water pump. Since the water level in the water tank is too low, it will cause the pumping failure of the water pump, so it is necessary to monitor the water level in the water tank to prevent the water level in the water tank from being too low. However, due to structural limitations, mechanical micro switches cannot be used for low water level sensing, so existing dehumidifiers generally prevent the water level in the water tank from being too low by controlling the pumping time of the water pump, but the amount of water pumped each time is inaccurate, which will cause more water to accumulate in the water tank. Summary of the invention

[0003] The main purpose of the present invention is to provide a dehumidifier, which can accurately sense the low water level in the water tank, thereby avoiding the water pumping failure caused by the water level in the water tank being too low.

[0004] To achieve the above object, the present invention provides a dehumidifier, comprising:

[0005] case;

[0006] A water tank installed in the housing;

[0007] A detection device, the detection device comprising a detector and a signal trigger, the detector being arranged on the housing, the signal trigger being arranged in the water tank, and when the water level in the water tank is higher than a preset position, the signal trigger moves into a detection area of ​​the detector; when the water level in the water tank is lower than the preset position, the signal trigger moves out of the detection area of ​​the detector; and

[0008] A controller is electrically connected to the detection device and is used to control the water pump to stop pumping water when the signal triggering member is outside the detection area of ​​the detector.

[0009] Optionally, the detector is a Hall sensor, and the signal trigger is a magnetic float.

[0010] Optionally, a middle partition is provided in the shell, and the middle partition and the shell together define a mounting groove, the water tank is installed in the mounting groove, and the detector is installed on the middle partition.

[0011] Optionally, the lower end of the middle partition is raised toward one side of the water tank to form a limiting groove, and the detector is installed in the limiting groove.

[0012] Optionally, a heat dissipation through hole is provided at the bottom of the limiting groove.

[0013] Optionally, a notch of the limiting groove is provided with a limiting buckle, and the limiting buckle is clamped on the surface of the detector.

[0014] Optionally, a limiting cavity extending in the up-down direction is provided on the side wall of the water tank, a connecting port connected to the water tank is provided at the bottom of the limiting cavity, and the signal triggering member is arranged in the limiting cavity and can move up and down.

[0015] Optionally, a limiting plate is provided on the top of the limiting cavity, and the limiting plate is used to stop the signal triggering member.

[0016] Optionally, a buckle groove is provided on the limiting plate, and a limiting buckle adapted to the buckle groove is provided on the side wall of the water tank.

[0017] Optionally, a fixing portion is provided at the bottom of the limiting cavity, and a fixing hole is provided on the fixing portion; a supporting platform supporting the fixing portion is provided on the water tank, and a fixing column adapted to the fixing hole is provided on the supporting platform.

[0018] Optionally, a limit block is provided on the top of the signal triggering member, and the limit block is used to abut against the top of the limit cavity.

[0019] Optionally, convex ribs are provided on the peripheral side of the signal triggering member.

[0020] Optionally, the interior of the signal triggering component is hollow, and a water inlet hole is provided at the bottom of the signal triggering component.

[0021] The dehumidifier of the present invention includes a shell, a water tank, a detection device and a detector; the water tank is installed in the shell; the detection device includes a detector and a signal trigger, the detector is arranged on the shell, and the signal trigger is arranged in the water tank, when the water level in the water tank is higher than the preset position, the signal trigger moves to the detection area of ​​the detector; when the water level in the water tank is lower than the preset position, the signal trigger moves outside the detection area of ​​the detector; the controller is electrically connected to the detection device, and is used to control the water pump to stop pumping water when the signal trigger is located outside the detection area of ​​the detector. In this way, when the dehumidifier of the present invention uses a water pump to pump water from the water tank, when the water level in the water tank is lower than the preset position, the signal trigger moves outside the detection area of ​​the detector, so that the detection device can accurately sense the low water level in the water tank, and can accurately judge that the water level in the water tank is low, thereby avoiding the pumping failure of the water pump caused by the water level in the water tank being too low. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of an embodiment of a dehumidifier of the present invention;

[0024] Figure 2 It is a front view of an embodiment of a dehumidifier of the present invention;

[0025] Figure 3 for Figure 2 The cross-sectional view along the AA direction;

[0026] Figure 4 for Figure 3 The cross-sectional view along the DD direction;

[0027] Figure 5 for Figure 3 A partial enlarged view of the middle A;

[0028] Figure 6 It is a partial structural schematic diagram of an embodiment of a dehumidifier of the present invention;

[0029] Figure 7 for Figure 6 A partial enlarged view of point B in the middle;

[0030] Figure 8 It is a structural schematic diagram of a signal triggering component of a dehumidifier of the present invention;

[0031] Fig. 9 for Figure 8 Schematic diagram of the structure of the signal trigger from another perspective.

[0032] Description of Figure Numbers:

[0033]

[0034]

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the meaning of "and / or" appearing in the full text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or solutions that satisfy both A and B.

[0037] The present invention provides a dehumidifier. Generally, a dehumidifier can reduce the humidity in the ambient air. In an embodiment of the present invention, the dehumidifier can also accurately sense the low water level in the water tank, thereby avoiding a water pump failure caused by the water level in the water tank being too low.

[0038] See also Figures 1 to 5 The present invention proposes a dehumidifier 100, which includes a housing 110, a water tank 130, a detection device 150 and a detector 151; the water tank 130 is installed in the housing 110; the detection device 150 includes a detector 151 and a signal trigger 152, the detector 151 is arranged on the housing 110, and the signal trigger 152 is arranged in the water tank 130. When the water level in the water tank 130 is higher than a preset position, the signal trigger 152 moves into the detection area of ​​the detector 151; when the water level in the water tank 130 is lower than the preset position, the signal trigger 152 moves out of the detection area of ​​the detector 151; the controller is electrically connected to the detection device 150, so as to control the water pump to stop pumping water when the signal trigger 152 is located outside the detection area of ​​the detector 151.

[0039] In the embodiment of the present invention, the dehumidifier 100 specifically relates to a mobile dehumidifier 100, but is not limited thereto. The dehumidifier 100 includes a fan assembly, a compressor 160, a condenser, an evaporator, etc., which are arranged in the housing 110. The housing 110 is provided with an air inlet and an air outlet. The fan assembly is used to drive air into the housing 110 from the air inlet, and blows air out from the air outlet after interacting with the condenser and the evaporator in the housing 110. Specifically, the working principle of the dehumidifier 100 is as follows: the refrigerant is compressed by the compressor 160 to form a high-temperature and high-pressure refrigerant that flows to the condenser, and the high-temperature and high-pressure refrigerant is cooled on the condenser to become a low-temperature and high-pressure liquid, and then the refrigerant passes through a throttling device to become a low-temperature and low-pressure liquid, and then the refrigerant flows to the evaporator again, and the low-temperature and low-pressure liquid refrigerant transfers heat with the air on the evaporator, and the refrigerant absorbs heat to condense the air, and the refrigerant is converted from a liquid to a low-pressure gas, and flows to the compressor 160 again.

[0040] The water tank 130 may be integrally formed on the shell 110. Of course, the water tank 130 may also be detachably mounted on the shell 110. In one embodiment, a middle partition 120 is provided in the shell 110. The middle partition 120 and the shell 110 together define a mounting groove 111. The water tank 130 is mounted in the mounting groove 111. Specifically, the middle partition 120 divides the shell 110 into two front and rear chambers, one of which (mounting groove 111) is for the water tank 130 to be installed, and the other chamber is for the compressor 160 to be installed (such as Figure 3 In this embodiment, the water tank 130 is a drawer-type water tank 130, and the water tank 130 is used to collect condensed water generated in the dehumidifier 100. When the water level in the water tank 130 is high, the water in the water tank 130 can be pumped out by a water pump.

[0041] In the embodiment of the present invention, by setting up the detection device 150, the detection device 150 can accurately sense the low water level in the water tank 130, so as to accurately determine that the water level in the water tank 130 is low. Specifically, the detection device 150 includes a detector 151 and a signal trigger 152, the detector 151 is installed on the middle partition 120, the signal trigger 152 is arranged in the water tank 130, and the signal trigger 152 can move up and down in the water tank 130. When the water level in the water tank 130 is higher than the preset position, the signal trigger 152 moves into the detection area of ​​the detector 151; when the water level in the water tank 130 is lower than the preset position, the signal trigger 152 moves out of the detection area of ​​the detector 151. Here, the preset position corresponds to the position where the water level in the water tank 130 is lower, and the preset position can be selected according to actual needs without specific limitation. There may be various structures and types of the detector 151 . For example, the detector 151 may be a Hall sensor, a photoelectric sensor, or a proximity sensor, but is not limited thereto.

[0042] The controller is electrically connected to the detection device 150, and is used to control the water pump to stop pumping water when the signal trigger 152 is located outside the detection area of ​​the detector 151. That is, when the water pump is used to pump water from the water tank 130, if the signal trigger 152 is located within the detection area of ​​the detector 151, it means that the water level in the water tank 130 is relatively high at this time, and the water pump can be controlled to continue pumping water; if the signal trigger 152 is located outside the detection area of ​​the detector 151, it means that the water level in the water tank 130 is relatively low at this time, and if the water pump continues to pump water, a malfunction will occur, so the water pump can be controlled to stop pumping water.

[0043] The dehumidifier 100 of the present invention includes a shell 110, a water tank 130, a detection device 150 and a detector 151; the water tank 130 is installed in the shell 110; the detection device 150 includes a detector 151 and a signal trigger 152, the detector 151 is arranged on the shell 110, and the signal trigger 152 is arranged in the water tank 130, when the water level in the water tank 130 is higher than the preset position, the signal trigger 152 moves to the detection area of ​​the detector 151; when the water level in the water tank 130 is lower than the preset position, the signal trigger 152 moves outside the detection area of ​​the detector 151; the controller is electrically connected to the detection device 150, so as to control the water pump to stop pumping water when the signal trigger 152 is located outside the detection area of ​​the detector 151. In this way, when the dehumidifier 100 of the present invention uses a water pump to pump water from the water tank 130, when the water level in the water tank 130 is lower than a preset position, the signal trigger 152 moves outside the detection area of ​​the detector 151, so that the detection device 150 can accurately sense the low water level in the water tank 130, and can accurately determine that the water level in the water tank 130 is low, thereby avoiding water pumping failure caused by the water level in the water tank 130 being too low.

[0044] See also Figure 3 and Figure 5 In one embodiment, the detector 151 is a Hall sensor, and the signal trigger 152 is a magnetic float.

[0045] In this embodiment, when the water level in the water tank 130 is higher than the preset position, the float is just opposite to the sensing direction of the Hall sensor, and the Hall sensor can sense the magnetic field of the float. At this time, the Hall sensor sends a signal to the controller indicating that the water level in the water tank 130 is higher. When the water level in the water tank 130 is lower than the preset position, the float is outside the sensing range of the Hall sensor, and the Hall sensor cannot sense the magnetic field of the float. At this time, the Hall sensor sends a signal to the controller indicating that the water level in the water tank 130 is lower.

[0046] There are many ways to set the detector 151 on the middle partition 120. For example, in one embodiment, in order to prevent the detector 151 from protruding from the middle partition 120, a limiting groove 121 can be set on the middle partition 120 to accommodate the detector 151. Figure 5 The lower end of the middle partition 120 bulges toward one side of the water tank 130 to form a limiting groove 121, and the detector 151 is installed in the limiting groove 121.

[0047] Considering that the detector 151 generates heat during operation, in order to dissipate the heat of the detector 151 and ensure that the detector 151 can work normally, a heat dissipation through hole 122 may be opened at the bottom of the limiting groove 121 .

[0048] It is worth mentioning that a heat dissipation hole 122 is opened at the bottom of the limiting groove 121, which can not only dissipate heat for the detector 151, but also reduce the barriers between the detector 151 and the signal triggering member 152, thereby improving the detection sensitivity of the detection device 150.

[0049] For further information, see Figure 4 In order to facilitate the installation and removal of the detector 151, the notch of the limiting groove 121 is provided with a limiting buckle 123, and the limiting buckle 123 is clamped on the surface of the detector 151. There is no limitation on the number and position of the limiting buckles 123. For example, in one embodiment, the number of the limiting buckles 123 is two, and the two limiting buckles 123 are respectively arranged on opposite sides of the limiting groove 121, so that the installation of the detector 151 can be more stable, which is conducive to improving the detection accuracy of the detection device 150.

[0050] See also Figures 5 to 7 A limiting cavity 140 extending in the up-down direction is provided on the side wall of the water tank 130, and a connecting port 141 communicating with the water tank 130 is provided at the bottom of the limiting cavity 140. The signal triggering member 152 is disposed in the limiting cavity 140 and can move up and down.

[0051] It should be noted that when the water level in the water tank 130 is higher than the preset position, the water in the water tank 130 flows into the limiting cavity 140 from the connecting port 141, and the signal trigger 152 (a magnetic float) moves to the detection area of ​​the detector 151 under the action of buoyancy. At this time, the detector 151 can sense the signal trigger 152, thereby sending a signal indicating that the water level in the water tank 130 is higher to the controller, and the controller can control the water pump to continue pumping water. When the water level in the water tank 130 is lower than the preset position, the water in the limiting cavity 140 flows back into the water tank 130 from the communication port 141. As the water level in the limiting cavity 140 drops, the buoyancy of the signal trigger 152 (magnetic float) decreases, and the signal trigger 152 moves out of the detection area of ​​the detector 151. At this time, the detector 151 cannot sense the signal trigger 152, thereby sending a signal indicating that the water level in the water tank 130 is low to the controller, and the controller can control the water pump to stop pumping water. The side wall of the water tank 130 refers to the side wall of the water tank 130 close to the middle partition 120.

[0052] Furthermore, in order to ensure that the signal triggering member 152 moves exactly into the detection area of ​​the detector 151 when the water level in the water tank 130 is higher than a preset position, a limit plate 142 may be provided at the top of the limit cavity 140 , and the limit plate 142 is used to stop the signal triggering member 152 .

[0053] It can be understood that when the water level in the water tank 130 is higher than the preset position, the water in the water tank 130 flows into the limit cavity 140 from the communication port 141, and the signal trigger 152 (a magnetic float) floats upward under the action of buoyancy. When the signal trigger 152 floats up to abut against the limit plate 142, it stops. At this time, the signal trigger 152 is just located in the detection area of ​​the detector 151 (such as Figure 5 shown).

[0054] On the basis of the above embodiments, the limiting cavity 140 can be integrally formed on the side wall of the water tank 130. Of course, the limiting cavity 140 can also be detachably mounted on the side wall of the water tank 130. There are many ways to detachably connect the limiting cavity 140 to the side wall of the water tank 130, such as screw connection, snap connection, bonding, etc. Figure 6 and Figure 7 In one embodiment, a buckle groove 143 is provided on the limiting plate 142 , and a limiting buckle 134 adapted to the buckle groove 143 is provided on the side wall of the water tank 130 .

[0055] Furthermore, in order to better support and fix the limiting cavity 140, a fixing portion 131 is provided at the bottom of the limiting cavity 140, and a fixing hole is provided on the fixing portion 131; a support platform 132 supporting the fixing portion 131 is provided on the water tank 130, and a fixing column 133 adapted to the fixing hole is provided on the support platform 132. Specifically, the fixing column 133 can be a stud or the like.

[0056] It is understood that, in one embodiment, in order to improve the installation stability of the limiting cavity 140, two fixing parts 131 may be provided at the bottom of the limiting cavity 140, wherein the two fixing parts 131 are symmetrically distributed on both sides of the buckle groove 143. Of course, in other embodiments, one or three fixing parts 131 may be provided at the bottom of the limiting cavity 140, without specific limitation. The number of the support platforms 132 is the same as the number of the fixing parts 131 and corresponds one to one.

[0057] On the basis of the above-mentioned embodiments, a limit block 153 is provided on the top of the signal trigger 152, and the limit block 153 is used to abut against the top of the limit cavity 140. It should be pointed out that the limit block 153 is provided on the top of the signal trigger 152 in order to reduce the contact area between the signal trigger 152 and the limit plate 142. Similarly, in order to reduce the contact area between the signal trigger 152 and the side wall of the water tank 130, so that the signal trigger 152 can rise better under the action of buoyancy, a convex rib 154 can be provided on the circumferential side of the signal trigger 152. Specifically, the convex rib 154 can extend in the lateral direction, and of course can also extend in the up and down direction, which is not specifically limited here.

[0058] In one embodiment, in order to further increase the buoyancy of the magnetic trigger 152 so that the signal trigger 152 can rise better under the action of buoyancy, the interior of the signal trigger 152 is hollow, and a water inlet 155 communicating with the water tank 130 is provided at the bottom of the signal trigger 152. Here, the interior of the signal trigger 152 is hollow, which can reduce the gravity of the signal trigger 152 on the one hand, and the water in the water tank 130 enters the interior of the signal trigger 152 through the water inlet 155 on the other hand, which can increase the buoyancy of the signal trigger 152, so that the signal trigger 152 can rise more smoothly under the action of buoyancy.

[0059] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A dehumidifier, characterized in that: It comprises a shell, a compressor, a water tank and a detection device, wherein a middle partition is arranged in the shell, and the middle partition divides the shell into a mounting groove and a chamber for mounting the compressor; The water tank is installed in the installation groove; The detection device comprises a detector and a signal trigger, wherein the detector is arranged on the housing, and the signal trigger is arranged in the water tank. When the water level in the water tank is higher than a preset position, the signal trigger moves into the detection area of ​​the detector; when the water level in the water tank is lower than the preset position, the signal trigger moves out of the detection area of ​​the detector. and a controller, the controller being electrically connected to the detection device and configured to control the water pump to stop pumping water when the signal triggering member is outside the detection area of ​​the detector; The detector is installed on the middle partition, and the lower end of the middle partition is bulged toward one side of the water tank to form a limiting groove, the detector is installed in the limiting groove, and the bottom of the limiting groove is provided with a heat dissipation hole, and the side wall of the water tank close to the middle partition is provided with a limiting cavity extending in the up and down directions, and the bottom of the limiting cavity is provided with a connecting port connected to the water tank, and the signal trigger is arranged in the limiting cavity and can move up and down; the interior of the signal trigger is hollow, and the bottom of the signal trigger is provided with a water inlet hole, and the top of the signal trigger is provided with a limiting block, and the limiting block is used to abut against the top of the limiting cavity, and the surrounding side of the signal trigger is provided with ribs, and the ribs are used to reduce the contact area with the side wall of the water tank.

2. The dehumidifier according to claim 1, characterized in that The detector is a Hall sensor, and the signal triggering element is a magnetic float.

3. The dehumidifier according to claim 1, characterized in that: The notch of the limiting groove is provided with a limiting buckle, and the limiting buckle is clamped on the surface of the detector.

4. The dehumidifier according to claim 1, characterized in that A limiting plate is provided on the top of the limiting cavity, and the limiting plate is used to stop the signal triggering member.

5. The dehumidifier according to claim 4, characterized in that: The limiting plate is provided with a buckle groove, and the side wall of the water tank is provided with a limiting buckle matched with the buckle groove.

6. The dehumidifier according to claim 1, characterized in that A fixing part is arranged at the bottom of the limiting cavity, and a fixing hole is arranged on the fixing part; a supporting platform for supporting the fixing part is arranged on the water tank, and a fixing column adapted to the fixing hole is arranged on the supporting platform.

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