Drainage assembly and air conditioner

Abstract

The utility model provides a drainage assembly and an air conditioner, the drainage assembly is used for draining water in a container, the drainage assembly comprises a water pump and a liquid level sensor, the liquid level sensor comprises a connecting part, one of the connecting part and the water pump is provided with a first clamping part, and the other one of the connecting part and the water pump is provided with a second clamping part. And the liquid level sensor and the water pump are detachably clamped together through the first clamping part and the second clamping part, so that the technical problem that the drainage pump and the liquid level sensor are difficult to replace in the prior art can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of drainage, and in particular relates to a drainage component and an air conditioner. Background Art

[0002] Air conditioners generate a large amount of condensed water during the cooling and dehumidification process. In order to drain the water generated during operation, a drain pump needs to be installed in the air conditioner. The function of the air conditioner drain pump is to drain the condensed water in the water tray in a timely manner. The air conditioner drain pump generally uses a liquid level sensor to identify the water level in the water tray and controls the operation, shutdown, and alarm of the drain pump based on the water level information. In order to prevent the vibration of the water pump from causing the float of the liquid level switch to jump and generate noise, the existing drain pump and liquid level sensor are usually installed separately and at a distance, such as Figure 11 As shown, the liquid level switch and water pump are separately installed. This structure requires a large space for the air conditioner and has low production and assembly efficiency. Conventional drain pumps and liquid level sensors are often pre-assembled when installed together, making them difficult to disassemble. This makes it difficult to replace or repair just one of the two. If either is damaged, the entire system must be replaced.

[0003] How to improve the replaceability of drainage pumps and liquid level sensors is a technical problem that continues to be solved. Utility Model Content

[0004] Therefore, the utility model provides a drainage assembly and an air conditioner, which can solve the technical problem in the prior art that the drainage pump and the liquid level sensor are difficult to replace.

[0005] The utility model provides a drainage component for draining water in a container, the drainage component comprising a water pump and a liquid level sensor, the liquid level sensor comprising a connecting portion, one of the connecting portion and the water pump being provided with a first clamping portion, and the other being provided with a second clamping portion, the liquid level sensor and the water pump being detachably clamped together via the first clamping portion and the second clamping portion.

[0006] In some embodiments, the first clamping portion includes a first clamping slot with an opening facing downward, the first clamping slot is provided with a first extrusion surface, and the second clamping portion includes a clamping block, the clamping block is provided with a second extrusion surface opposite to the first extrusion surface, and when the clamping block is clamped into the first clamping slot, the second extrusion surface is in contact with the first extrusion surface.

[0007] In some embodiments, the first clamping portion includes a first cantilever arm spaced apart from the first extrusion surface and extending in the vertical direction, the upper end of the first cantilever arm being connected to the first extrusion surface via a connecting plate, and a second cantilever arm extending toward the first extrusion surface being provided at the lower end of the first cantilever arm, with a second clamping groove formed between the second cantilever arm and the connecting plate;

[0008] A clearance groove is provided on the side of the clamping block facing away from the second extrusion surface, the second cantilever is clamped into the clearance groove, and the clamping block is clamped into the second clamping groove.

[0009] In some embodiments, an inclined surface is provided at one end of the second cantilever close to the first extrusion surface, at least one of the first cantilever and the connecting plate is an elastic member, and the inclined surface faces both the first extrusion surface and downward.

[0010] In some embodiments, the first extrusion surface is provided with a first stop structure, and the second extrusion surface is provided with a second stop structure, and the second stop structure cooperates with the first stop structure to limit the liquid level sensor from moving in a horizontal direction along the first extrusion surface.

[0011] In some embodiments, one of the first stopping structure and the second stopping structure is a groove extending up and down, and the other is a ridge extending up and down.

[0012] In some embodiments, the cross-section of the groove is a first wedge shape, and the cross-section of the ridge is a second wedge shape that matches the first wedge shape.

[0013] In some embodiments, the liquid level sensor includes at least a first electrode, a second electrode, and a third electrode; the first electrode is a common end, and the second electrode and the third electrode have different lengths.

[0014] In some embodiments, the electrode is sealed to the connection portion.

[0015] The utility model also provides an air conditioner, comprising the drainage assembly, wherein the container is a water receiving tray of the air conditioner.

[0016] The liquid level sensor and water pump of the present application are detachably connected together. When one of them needs to be replaced and repaired, the liquid level sensor and the water pump can be disassembled, and then one of them can be repaired and replaced, which is beneficial to improving maintenance efficiency and increasing the replaceability of the sensor and the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. The drawings described below are merely exemplary. For those skilled in the art, other implementation drawings can be derived from the provided drawings without inventive effort.

[0018] Figure 1 This is a front cross-sectional view of the drainage assembly of an embodiment of the present utility model;

[0019] Figure 2 This is an embodiment of the utility model Figure 1 The main cross-sectional view of the water pump in FIG;

[0020] Figure 3 This is an embodiment of the utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is an embodiment of the utility model Figure 1 Main cross-sectional view of the liquid level sensor;

[0022] Figure 5 This is an embodiment of the utility model Figure 4 Enlarged view of point B in the middle;

[0023] Figure 6 This is an embodiment of the utility model Figure 2 A top view of the water pump in FIG.

[0024] Figure 7 This is an oblique view of a drainage assembly according to an embodiment of the present utility model;

[0025] Figure 8 It is an oblique view of a water pump according to an embodiment of the present utility model;

[0026] Figure 9 This is an oblique view of a liquid level sensor according to an embodiment of the present utility model;

[0027] Figure 10 This is a schematic diagram of the process of the drainage component of the utility model when it is working;

[0028] Figure 11 This is a schematic diagram of a prior art liquid level switch and a drain pump being separately arranged on an air conditioner;

[0029] The accompanying drawings are:

[0030] 1. Water pump; 2. Liquid level sensor; 201. First card slot; 202. Second card slot; 301. First extrusion surface; 302. Second extrusion surface; 401. First cantilever; 402. Second cantilever; 4021. Inclined surface; 403. Connecting plate; 5. Card block; 501. Gap; 601. Groove; 602. Ridge; 701. First electrode; 702. Second electrode; 703. Third electrode; 801. Housing; 802. Impeller; 803. Lead wire; 804. Upper pump body; 805. Lower pump body; 901. Liquid level switch; 902. Drain pump. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0033] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0034] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0035] The utility model provides a drainage component and an air conditioner, which can solve the technical problem in the prior art that a drainage pump and a liquid level sensor are difficult to replace.

[0036] See also Figure 1-9As shown, the utility model provides a drainage assembly for draining water in a container, the drainage assembly includes a water pump 1 and a liquid level sensor 2, the liquid level sensor 2 includes a connecting portion, one of the connecting portion and the water pump 1 is provided with a first clamping portion, and the other is provided with a second clamping portion, the liquid level sensor 2 and the water pump 1 are detachably clamped together via the first clamping portion and the second clamping portion.

[0037] The present application reduces the space requirement of the air conditioner by connecting the liquid level sensor 2 and the lower pump body 805 of the water pump 1 through the first clamping part and the second clamping part. When one or both of the water pump 1 and the liquid level sensor 2 need to be repaired or replaced, the liquid level sensor 2 and the water pump 1 can be separated and repaired separately, or one of them can be replaced, which is conducive to improving maintenance efficiency and reducing costs. Figure 11 As shown, the liquid level switch 901 and the drainage pump 902 in the prior art are separately provided, which occupies a large space.

[0038] The water pump 1 includes a motor and an impeller 802 .

[0039] Preferably, Figure 4 and Figure 5 As shown, the first clamping portion includes a first clamping slot 201 with an opening facing downward, and the first clamping slot 201 is provided with a first extrusion surface 301. The second clamping portion includes a clamping block 5, and the clamping block 5 is provided with a second extrusion surface 302 opposite to the first extrusion surface 301. When the clamping block 5 is clamped into the first clamping slot 201, the second extrusion surface 302 is in contact with the first extrusion surface 301.

[0040] When the clamping block 5 is inserted into the first clamping slot 201, the first extrusion surface 301 and the second extrusion surface 302 are aligned, thereby clamping the liquid level sensor 2 and the water pump 1 together in a direction perpendicular to the first extrusion surface 301. The connection in other directions relies on friction. This facilitates the connection and removal of the liquid level sensor 2 and the water pump 1. Specifically, taking the first clamping portion provided on the liquid level sensor 2 as an example, the liquid level sensor 2 is placed on the clamping block 5 from the top to the bottom. At this time, the second extrusion surface 302 squeezes the first extrusion surface 301, and static friction is generated between the second extrusion surface 302 and the first extrusion surface 301. This static friction has a restraining effect on the first and second clamping portions, thus preventing the liquid level sensor 2 and the water pump 1 from colliding and generating impact noise when the water pump 1 is in operation. When disassembly is required, the liquid level sensor 2 can be disassembled from the water pump 1 by moving it from the bottom to the top relative to the water pump 1, which is very convenient and quick.

[0041] Preferably, Figure 4 and Figure 5As shown, the first clamping portion includes a first cantilever 401 spaced apart from the first extrusion surface 301 and extending in the vertical direction. The upper end of the first cantilever 401 is connected to the first extrusion surface 301 via a connecting plate 403. The lower end of the first cantilever 401 is provided with a second cantilever 402 extending toward the first extrusion surface 301. A second clamping groove 202 is formed between the second cantilever 402 and the connecting plate 403.

[0042] A clearance groove 501 is provided on the side of the clamping block 5 facing away from the second extrusion surface 302 , and the second cantilever 402 is clamped into the clearance groove 501 , and the clamping block 5 is clamped into the second clamping groove 202 .

[0043] By engaging the second cantilever 402 with the clearance groove 501, the second cantilever 402 cooperates with the second clamping groove 202 to clamp the liquid level sensor 2 and the water pump 1 together in the vertical direction, thereby improving the firmness of the connection between the liquid level sensor 2 and the water pump 1. This further prevents the liquid level sensor 2 and the water pump 1 from colliding and generating impact noise when the water pump 1 is operating.

[0044] Preferably, Figure 4 and Figure 5 As shown, an inclined surface 4021 is provided at one end of the second cantilever 402 close to the first extrusion surface 301 , at least one of the first cantilever 401 and the connecting plate 403 is an elastic member, and the inclined surface 4021 faces both the first extrusion surface 301 and downward.

[0045] By providing the inclined surface 4021, which faces both the first extrusion surface 301 and downward, when the first clamping portion is installed from top to bottom, the inclined surface 4021 squeezes the clamping block 5, thereby causing the second cantilever 402 to move away from the liquid level sensor 2, allowing the second cantilever 402 to be engaged with the clearance groove 501, and the connecting plate 403 and the second cantilever 402 to clamp the clamping block 5. This arrangement improves the convenience of installation.

[0046] Preferably, Figure 7-Figure 9 As shown, the first extrusion surface 301 is provided with a first stop structure, and the second extrusion surface 302 is provided with a second stop structure. The second stop structure cooperates with the first stop structure to limit the liquid level sensor 2 from moving in the horizontal direction along the first extrusion surface 301.

[0047] By setting the first stop structure and the second stop structure, the liquid level sensor 2 can be limited to move in the horizontal direction along the extrusion surface, further improving the firmness of the connection between the liquid level sensor 2 and the water pump 1, and further avoiding the collision between the liquid level sensor 2 and the water pump 1 to generate impact noise when the water pump 1 is working.

[0048] Preferably, Figure 8 and Figure 9 As shown, one of the first stopping structure and the second stopping structure is a groove 601 extending up and down, and the other is a ridge 602 extending up and down.

[0049] When the hydraulic sensor and the water pump 1 are specifically assembled together, taking the example of a case where the first engaging portion is provided on the liquid level sensor 2 and the ridge 602 is provided on the first stop structure, when the liquid level sensor 2 is moved downward so that the first engaging groove 201 engages with the engaging block 5, the ridge 602 slides downward within the groove 601. This not only restricts the horizontal movement of the first engaging portion relative to the second engaging portion along the first extrusion surface 301, but also forms a guide assembly with the ridge 602 and the groove 601, facilitating the engagement of the first and second engaging portions.

[0050] Preferably, Figure 8 and Figure 9 As shown, the cross section of the groove 601 is a first wedge shape, and the cross section of the ridge 602 is a second wedge shape adapted to the first wedge shape.

[0051] The cross section of the groove 601 is a first wedge shape, and the cross section of the ridge 602 is a second wedge shape, which facilitates the fit between the ridge 602 and the groove 601. The wedge shape is a structure with one end larger than the other, such as a trapezoid.

[0052] Preferably, Figure 4 As shown, the liquid level sensor 2 includes at least a first electrode 701 , a second electrode 702 and a third electrode 703 ; the first electrode 701 is a common end, and the second electrode 702 and the third electrode 703 have different lengths.

[0053] Using at least three electrodes as the liquid level sensing part can sense at least two water levels, which can better determine the water level. Compared with the existing liquid level switch 901 (with a float), using electrodes to sense the water level can more accurately measure the corresponding water level and can also avoid the noise caused by the float jumping.

[0054] The water pump 1 includes an upper pump body 804, a lower pump body 805, an impeller 802, etc. The connection portion is preferably provided on the lower pump body 805, so that the electrode can be more easily extended downward into the water, and the length of the electrode can be shortened.

[0055] Preferably, the electrode is sealed to the connecting portion.

[0056] The electrodes are sealed to the connector, preventing water from entering the connector through the connection. Furthermore, this prevents the electrodes from vibrating relative to the connector and generating noise. Furthermore, the connector comprises a housing 801, with one of the first and second clamping portions positioned outside the housing 801. The electrodes are secured to the housing 801 by a plastic potting seal.

[0057] The liquid level sensor 2 further includes a lead 803 , and the lead 803 and the housing 801 are sealed and fixed together by plastic packaging.

[0058] The utility model provides an air conditioner, comprising the drainage component, wherein the container is a water receiving tray of the air conditioner.

[0059] The air conditioner provided with the above-mentioned drainage assembly has a water receiving pan as the container. Since the water level detection is more accurate, the phenomenon of water overflowing from the water receiving pan due to untimely start-up of the water pump 1 is avoided, thereby preventing the overflowing water from causing damage to the house.

[0060] like Figure 4 As shown, when the air conditioner is provided with a first electrode 701, a second electrode 702 and a third electrode 703, the length of the first electrode 701 can be L1, the length of the second electrode 702 can be L2, and the length of the third electrode 703 can be L3, then, L1=L2>L3. Figure 10 As shown, when the first electrode 701 and the second electrode 702 are simultaneously in contact with water, the liquid level is at the first level. The duration T1 of the simultaneous contact between the first and second electrodes 701, 702 is measured. If T1 > t1, it indicates that there is too much water in the water tray, and water pump 1 is activated to drain the water. When the first and second electrodes 701, 702 are not conductive, the liquid level is below the first level, and water pump 1 is shut down. Within a period of time after water pump 1 is activated, the first and third electrodes 701, 703 remain conductive for a duration T2, and the duration T2 of the conductive connection between the first and third electrodes 701, 703 is greater than t2, indicating that the liquid level has reached the second level and has not dropped. At this point, if the air conditioner is running, the air conditioner is shut down and a fault is reported. If the air conditioner is not running, a fault is directly reported. This fault report allows for timely notification of technical personnel to prevent water from overflowing the water tray. Furthermore, more electrodes can be added to obtain more water level data, with different water levels corresponding to different drainage rates of water pump 1.

[0061] It is easy for those skilled in the art to understand that, under the premise of no conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. Such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. A drainage assembly for draining water from a container, comprising a water pump (1) and a liquid level sensor (2), characterized in that: The liquid level sensor (2) comprises a connecting portion, one of the connecting portion and the water pump (1) is provided with a first clamping portion, and the other is provided with a second clamping portion, and the liquid level sensor (2) and the water pump (1) are detachably clamped together via the first clamping portion and the second clamping portion.

2. The drainage assembly according to claim 1, characterized in that The first clamping portion comprises a first clamping slot (201) with an opening facing downward, the first clamping slot (201) is provided with a first extrusion surface (301), and the second clamping portion comprises a clamping block (5), the clamping block (5) is provided with a second extrusion surface (302) opposite to the first extrusion surface (301), and when the clamping block (5) is clamped into the first clamping slot (201), the second extrusion surface (302) is in contact with the first extrusion surface (301).

3. The drainage assembly according to claim 2, characterized in that: The first clamping portion comprises a first cantilever (401) spaced apart from the first extrusion surface (301) and extending in an up-down direction, the upper end of the first cantilever (401) being connected to the first extrusion surface (301) via a connecting plate (403), the lower end of the first cantilever (401) being provided with a second cantilever (402) extending toward the first extrusion surface (301), and a second clamping groove (202) being formed between the second cantilever (402) and the connecting plate (403); A clearance groove (501) is provided on the side of the clamping block (5) facing away from the second extrusion surface (302); the second cantilever (402) is clamped into the clearance groove (501), and the clamping block (5) is clamped into the second clamping groove (202).

4. The drainage assembly according to claim 3, characterized in that: An inclined surface (4021) is provided at one end of the second cantilever (402) close to the first extrusion surface (301), at least one of the first cantilever (401) and the connecting plate (403) is an elastic member, and the inclined surface (4021) faces both the first extrusion surface (301) and downward.

5. The drainage assembly according to claim 2, characterized in that: The first extrusion surface (301) is provided with a first stop structure, and the second extrusion surface (302) is provided with a second stop structure, and the second stop structure cooperates with the first stop structure to limit the liquid level sensor (2) from moving in a horizontal direction along the first extrusion surface (301).

6. The drainage assembly according to claim 5, characterized in that: One of the first stop structure and the second stop structure is a groove (601) extending up and down, and the other is a ridge (602) extending up and down.

7. The drainage assembly according to claim 6, characterized in that The cross section of the groove (601) is a first wedge shape, and the cross section of the ridge (602) is a second wedge shape that matches the first wedge shape.

8. The drainage assembly according to claim 1, characterized in that: The liquid level sensor (2) comprises at least a first electrode (701), a second electrode (702) and a third electrode (703); the first electrode (701) is a common end, and the second electrode (702) and the third electrode (703) have different lengths.

9. The drainage assembly according to claim 8, characterized in that: The electrode is sealed and connected to the connection portion.

10. An air conditioner, characterized in that: It comprises the drainage assembly according to any one of claims 1 to 9, wherein the container is a water receiving tray of the air conditioner.

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