CN213577755U - Air conditioner with non-return function - Google Patents

Abstract

The utility model provides an air conditioner with end-stopping function is provided with indoor heat exchanger in the casing of machine in the air conditioning, indoor heat exchanger's below is provided with the water collector, the air conditioner still disposes the drain pipe to the comdenstion water discharge of collecting the water collector, the drain pipe along the discharge direction's of comdenstion water upstream side with the water collector is connected, the drain pipe disposes along the discharge direction's of comdenstion water and ends contrary subassembly, it includes to end contrary subassembly: a fixed portion fixedly connected to a downstream side of the drain pipe; and a movable portion movable in a discharge direction of condensed water with respect to the fixed portion so as to open/close a downstream side of the drain pipe; wherein the movable portion includes a movable base, and the movable base is capable of plugging a downstream side of the drain pipe without intervention of an external force. Through such setting, the utility model discloses an air conditioner has realized the function of ending one's return of drain pipe.

Description

Air conditioner with non-return function

Technical Field

The utility model relates to an air conditioner technical field especially relates to an air conditioner with end contrary function.

Background

An air conditioner generally has a cooling mode and a heating mode, and can supply air having a suitable temperature to an indoor space by circulating a refrigerant through a circuit formed by a compressor, a condenser, a throttle, an evaporator, and a compressor, along with a phase change of the refrigerant. In the case where the air conditioner is in a cooling mode, the indoor heat exchanger functions as a condenser that emits heat, and condensed water is generated on a surface of the condenser while emitting heat to an indoor space. In order to ensure the sustainability of the refrigeration, the part of the condensed water needs to be discharged to the outdoor side in time.

The existing indoor unit of the air conditioner is provided with a drain pipe which drains the condensed water of the indoor heat exchanger to the outdoor side, and because the drain pipe is connected with the indoor space and the outdoor side, for the stability of the overall performance of the air conditioner, the drain pipe only has a drainage function, that is, the function is not allowed to be randomly expanded, if the function is not expanded: while the drain pipe is not discharging water, noise on the outdoor side (noise of the outdoor fan, environmental noise on the outdoor side, etc.), foreign matter (dust, foreign matter, small insects, etc.), etc. are transmitted to the indoor side through the drain pipe.

Referring to fig. 1, fig. 1 is a schematic view showing an arrangement of a drain pipe of an air conditioner according to a conventional example. The upstream side (left side) of the drain pipe 1 is fixed to the indoor side, and the downstream side (right side) of the drain pipe extends to the outdoor side without any downstream side blocking measures. Obviously, noise, foreign matter, etc. outside the room are directly transmitted to the indoor side through the drain pipe.

As an improvement, a structure having a non-return function is generally provided between the downstream side or the upstream and downstream sides of the drain pipe, such as: the Chinese utility model patent (CN210463530U) discloses a pipeline system for central air-conditioning condensate water discharge, which comprises a drainage pipeline connected with an air-conditioning condensate water outlet, a condensate water discharge main pipe and a non-return device connected between the drainage pipeline and the condensate water discharge main pipe, wherein the non-return device comprises an outer shell, a condensate water inlet and a condensate water outlet which are arranged at the side part of the outer shell and have staggered heights, a non-return core arranged inside the outer shell and a non-return turning plate movably arranged at a core nozzle of the non-return core, and the non-return turning plate can rotate along one side of the core nozzle; the non-return turnover plate covers the whole core nozzle of the non-return core; one side of the non-return core is provided with a first magnet, and one end of the non-return turnover plate, which is close to the first magnet, is provided with a second magnet which is repellent to the first magnet; the height of the position of the condensed water inlet of the non-return turning plate is larger than that of the condensed water outlet. It can be seen that the structure of the backstop is relatively complex.

Accordingly, there is a need in the art for a new solution to the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem

In view of this, the technical problem to be solved in the present invention is to provide a new structure for realizing the non-return function of the drain pipe of the air conditioner.

Solution scheme

The utility model provides an air conditioner with end-stopping function, this air conditioner include the air conditioning indoor set, the air conditioning indoor set includes the casing, be provided with indoor heat exchanger in the casing, indoor heat exchanger's below is provided with the water collector that is used for collecting the comdenstion water that indoor heat exchanger surface produced, the air conditioner still disposes the drain pipe to the comdenstion water discharge with the water collector is collected, the drain pipe along the discharge direction's of comdenstion water upstream side with the water collector is connected, the drain pipe disposes along the discharge direction's of comdenstion water downstream side and ends contrary subassembly, it includes to end contrary subassembly: a fixed portion fixedly connected to a downstream side of the drain pipe; and a movable portion movable in a discharge direction of condensed water with respect to the fixed portion so as to open/close a downstream side of the drain pipe; wherein the movable portion includes a movable base, and the movable base is capable of plugging a downstream side of the drain pipe without intervention of an external force.

With such an arrangement, the air conditioner can effectively prevent foreign matters, noise, and the like on the outdoor side from entering the indoor unit of the air conditioner or the indoor space through the drain pipe without draining water.

It will be appreciated that the person skilled in the art may select the opening of the movable part according to the actual situation. Such as may be: this is done by means of a mechanical connection by means of an intermediate part introduced, such as a stop structure on the fixed part, a structure matching the stop structure on the movable part, etc. It can also be: the control logic is used for completing the operation in an electrical connection mode, for example, a switch is configured for the movable part, the switch is electrified to be opened and the blocking constraint is released under the condition that water needs to be drained, and the switch is powered off and closed and the blocking constraint is kept under the condition that the water does not need to be drained; and the like.

In a possible embodiment of the air conditioner with a backstop function as described above, the backstop assembly includes an elastic portion fixedly connected to the fixed portion or the drain pipe on the one hand, and connected to the movable portion on the other hand, so that in a case where it is necessary to drain condensed water, the movable portion is moved away from the fixed portion at least by means of an elastic force of the elastic portion, thereby releasing the movable base from blocking the downstream side of the drain pipe.

With this arrangement, the movable base is released from the downstream side of the drain pipe by introducing the elastic portion.

It will be appreciated that the resilient portion is able to move away from the fixed portion, and may rely solely on the resilient force generated by the impact force generated by the condensate during drainage, or may be assisted by other external forces. Such as may be: a push rod is arranged for the elastic part, and when the condensed water needs to be discharged, the controller enables the push rod to generate displacement in the same direction as the impact force; and the like. The skilled person can select flexibly according to the actual situation.

In a possible embodiment of the air conditioner with the non-return function, the elastic part comprises a spring, and the pre-tightening force of the spring enables the movable base body to block the downstream side of the water discharge pipe under the condition of no external force intervention.

Through the arrangement, a specific plugging implementation mode is provided.

In a possible embodiment of the above air conditioner with a non-return function, the spring includes a first spring section and a second spring section disposed in a discharge direction of the condensed water,

wherein, the coefficient of stiffness of the first spring section is less than or equal to that of the second spring section.

Through the arrangement, the spring can be more easily deformed under the impact force of the condensed water, so that the movable base body is pushed to move towards the direction of removing the blocking restriction.

It can be understood that the number of the first spring segment and the second spring segment may be one or more, the types of the first spring segment and the second spring segment may be the same or different, in the case of a type system, the first spring segment and the second spring segment may be separately arranged or integrally formed, and the like, and those skilled in the art may flexibly arrange the spring segments according to actual situations.

In a possible embodiment, the air conditioner with a non-return function includes a connecting rod disposed along a discharge direction of the condensed water, the connecting rod is fixedly connected to the fixing portion or the drain pipe, and the spring is sleeved on the connecting rod.

By such an arrangement, a specific manner of securing the spring is provided.

With regard to the air conditioner having the non-return function as described above, in one possible embodiment, the non-return assembly includes a mounting base detachably fixed to the fixing portion, and the link is provided to the mounting base.

Through the arrangement, a specific connecting rod installation mode is provided.

Such as may be: the mounting base body is of a plate-shaped structure, the plate-shaped structure is fixed on the fixing part in a threaded connection mode, and the connecting rod is arranged on the plate-shaped structure in a fixed connection or integrated forming mode; and the like.

With regard to the air conditioner having the non-return function as described above, in one possible embodiment, the fixing portion includes a fixing base having an installation space formed thereon, and at least a portion of the elastic portion is freely received in the installation space.

By this arrangement a specific way of mounting the resilient part is provided. Such as: the springs are entirely accommodated in the installation space in a state where the movable base blocks the downstream side of the drain pipe, and a part of the springs on the downstream side protrudes out of the installation space in a state where the drain pipe needs to be drained.

In a possible embodiment of the air conditioner with the non-return function, the fixing base body is provided with a first communicating structure, and the first communicating structure is communicated with the installation space, so that condensed water in the drain pipe can be discharged through the first communicating structure and the installation space in sequence.

With this arrangement, in the case where the drain water needs to be drained, the drain water in the drain pipe first reaches the installation space through the first communicating structure, provides the impact force to the spring to release the blocking restriction of the movable base to the downstream side of the drain pipe, and then the drain water is drained through the installation space.

It will be appreciated that, since the fixing base also has the connecting rod fixed thereto and the spring provided thereto at a position corresponding to the mounting space, the position of the first communicating structure should be appropriately set out of the mounting position of the connecting rod and the radial dimension should be small in order to secure the structural stability. Such as: the first communicating structure is a plurality of elongated holes which are provided in the position of the fixing base corresponding to the mounting space and in which the axial positions of the downstream lateral springs are gathered.

With the air conditioner having the non-return function as described above, in one possible embodiment, the fixing base is provided with a second communicating structure so that the condensed water can be discharged from the downstream side of the drain pipe through the second communicating structure.

With this arrangement, in the case where the condensed water needs to be discharged, the movable base releases the blocking restriction on the downstream side of the drain pipe, and the water in the drain pipe can be directly discharged through the second communicating structure.

As an example, the second communicating structure includes a plurality of strip-shaped holes distributed at intervals along the circumference of the fixed base body at the periphery of the installation space, or the second communicating structure is an annular channel arranged around the periphery of the installation space, and the like, and a person skilled in the art can flexibly select the specific form of the second communicating structure according to actual conditions.

In a possible embodiment, the movable base is provided with or formed with a sealing structure so as to:

the movable base is sealingly connected to a downstream side of the drain pipe without draining condensed water.

With such an arrangement, the reverse phenomenon such as foreign matter and noise on the outdoor side can be prevented more effectively. And, under the condition that a small amount of condensate water is remained in the drain pipe, the phenomenon of condensate water leakage can be effectively prevented.

If the movable base body is a sealing gasket or the movable base body is a plate-shaped structure, an annular groove is formed in one side of the plate-shaped structure close to the drain pipe, and a sealing ring is arranged in the annular groove; and the like.

Drawings

The present invention is described below with reference to the accompanying drawings. In the drawings:

fig. 1 is a schematic view showing the arrangement of a drain pipe of an air conditioner according to a conventional example;

fig. 2 is a schematic structural view of a non-return assembly of an air conditioner with a non-return function according to an embodiment of the present invention, which corresponds to a state in which condensed water is discharged and shows a state in an installation space only in a perspective manner; and

fig. 3 is a schematic structural view of a fixing portion of a backstop assembly of an air conditioner having a backstop function according to an embodiment of the present invention, which only shows an arrangement form of a second communicating structure on the fixing portion.

List of reference numerals:

1. a drain pipe; 2. a backstop assembly; 21. a fixed portion; 22. a movable portion; 23. a spring; 24. a connecting rod; 25. and a communicating hole.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The air conditioner generally includes an air conditioner outdoor unit and an air conditioner indoor unit, the air conditioner outdoor unit mainly includes a casing, and a compressor, an outdoor fan and an outdoor heat exchanger (generally called as a condenser) which are disposed in the casing, and the air conditioner indoor unit mainly includes a casing and an indoor heat exchanger (generally called as an evaporator) which is disposed in the casing, and the air conditioner is in a refrigeration cycle when a refrigerant circulates along a loop of the compressor → the outdoor heat exchanger → the indoor heat exchanger → the compressor. When the refrigerant circulates along the circuit of the compressor → the indoor heat exchanger → the outdoor heat exchanger → the compressor, the air conditioner is in a heating cycle.

Taking an embedded air-conditioning indoor unit as an example, a casing of the air-conditioning indoor unit is usually suspended on a ceiling through a lifting lug and other structures, the casing is provided with an air supply outlet and an air return inlet (such as bottom air supply and side circumferential air return), an indoor heat exchanger, an indoor fan, a water receiving disc, an electric cabinet and the like are arranged in the casing, when the air-conditioning unit performs refrigeration/heating, under the action of the indoor fan, a part of air in an indoor space is pumped into the casing through the air return inlet, and after the air exchanges heat with the surface of the indoor heat exchanger, the temperature of the part of air can be reduced/increased, and then the part of air with the reduced temperature is sent into the indoor space through the air supply outlet again, and the steps are repeated, so that cold/heat generated by phase change and circulating flow of a. The water pan is arranged below the indoor heat exchanger and is mainly used for collecting condensed water generated on the surface of the indoor heat exchanger, the shell is provided with a water pan drainage joint for outwards discharging the condensed water collected by the water pan, the air conditioner is also provided with a drainage pipe, the upstream side of the drainage pipe is matched and connected with the water pan drainage pipe joint, and the downstream side of the drainage pipe extends out of the outdoor side.

Referring to fig. 2, fig. 2 is a schematic structural diagram of an air conditioner with a backstop function according to an embodiment of the present invention. As shown in fig. 2, in order to prevent the foreign matter, noise, etc. outside the room from passing back to the indoor through the drain pipe, particularly, in order to prevent the foreign matter, noise, etc. outside the room from entering the drain pipe through the downstream side of the drain pipe, then the foreign matter, noise, etc. are transmitted to the water receiving tray to reach the inside of the casing of the indoor unit of the air conditioner and then reach the indoor space through the air supply opening or the return air inlet, the utility model discloses an air conditioner has increased the non-return subassembly 2 that can reset automatically at the downstream side of the. Backstop assembly 2 includes: a fixed portion 21 provided at a downstream side of the drain pipe (e.g., screwed or integrally formed at the downstream side of the drain pipe), a movable portion 22 of a plate-like structure movable in a discharge direction of the condensed water with respect to the fixed portion so as to open/close the downstream side of the drain pipe, and an elastic portion, such as a spring 23, connected to the fixed portion and the movable portion, respectively.

According to the orientation in fig. 2, the fixed portion is a columnar structure having a columnar groove formed at a position near the downstream side, i.e., at the bottom thereof, the columnar groove constituting the installation space for the spring 23, and the non-return assembly further includes a connecting rod 24 having an upper end fixedly disposed at the fixed portion at a position corresponding to the upper side of the installation space and a lower end extending out of the installation space. The spring is sleeved on the connecting rod, the upper end of the spring is a fixed end, and the lower end of the spring is a free end. Meanwhile, the fixed portion is further provided with a first communicating structure (not shown) at a position corresponding to an upper side of the installation space so as to provide an impact force to the spring within the installation space to open the movable portion with respect to the fixed portion. For example, the first communication structure comprises a plurality of elongated holes, and the elongated holes are gathered to a position close to the middle part of the spring from top to bottom.

Referring to fig. 3, fig. 3 is a schematic structural view illustrating a fixing portion of a backstop assembly of an air conditioner with a backstop function according to an embodiment of the present invention. As shown in fig. 3, a second communicating structure is further provided on the fixing portion of the columnar structure, and the second communicating structure includes a plurality of communicating holes 25 distributed at intervals along the circumferential direction of the fixing base at the periphery of the installation space, and in this embodiment, the number of the communicating holes 25 is 4 and the shape thereof is an arc-shaped hole, so as to allow a part of the condensed water to directly flow out of the drain pipe through the arc-shaped hole without passing through the spring.

Based on such a structure, the operation principle of the backstop assembly of the present invention will be briefly described below.

The movable portion can block the downstream side of the drain pipe by means of the preload of the spring without discharging the condensed water. Specifically, in a state where no external force is applied, the movable portion is pulled upward by the biasing force of the spring, thereby blocking the downstream side of the drain pipe.

In a possible embodiment, the movable part comprises a movable base body which is a sealing gasket, so that the sealing function can be better achieved and dripping of condensation water can be effectively prevented in the sealed state. If a small amount of condensed water is left in the drain pipe, the phenomenon of the leakage of the condensed water can be effectively prevented.

Referring to fig. 2, in a state where it is necessary to discharge condensed water, the movable portion is moved in a direction away from the fixed portion by the elastic force of the elastic portion, thereby releasing the movable base from blocking the downstream side of the drain pipe. Specifically, the condensed water enters the installation space from the first communication structure, the spring in the installation space deforms downwards under the impact force of the condensed water, the elastic force generated by the deformation pushes the plate-shaped structure to move downwards basically, so that the downstream side of the drain pipe is opened, and at the moment, the condensed water in the drain pipe can be discharged in time.

In a state where the condensed water needs to be discharged, the path of the condensed water discharge pipe includes two kinds: one is to discharge from the downstream side of the drain pipe after passing through the first communicating structure and the installation space in order, and one is to discharge directly through the downstream side of the drain pipe of the second communicating structure. It will be appreciated that, due to the limited impact of the condensed water, a smaller coefficient of stiffness should be chosen for the spring.

It can be seen that the utility model discloses a fixed part, movable part and elastic component's cooperation need not to increase extra external force and applys the mechanism, only can realize the end-stopping function of drain pipe in the air conditioner through the impact force of comdenstion water and elastic component's elasticity setting. Simple structure, design benefit to can directly install additional on the drain pipe of current air conditioner, have good adaptability to the installation scene.

It should be noted that although the air conditioner configured as described above is described as an example, those skilled in the art will understand that the present invention should not be limited thereto. In fact, the user can flexibly set the specific forms of the (first and second) communicating structures, the fixing modes of the connecting rods and the like according to the situations such as practical application scenes and the like.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. An air conditioner with a non-return function is characterized by comprising an air conditioner indoor unit, wherein the air conditioner indoor unit comprises a shell, an indoor heat exchanger is arranged in the shell, a water receiving disc for collecting condensed water generated on the surface of the indoor heat exchanger is arranged below the indoor heat exchanger,

the air conditioner is further provided with a drain pipe to discharge condensed water collected by the water receiving tray, the drain pipe being connected to the water receiving pipe at an upstream side in a discharge direction of the condensed water, the drain pipe being provided with a check assembly at a downstream side in the discharge direction of the condensed water, the check assembly including: a fixed portion fixedly connected to a downstream side of the drain pipe; and

a movable portion movable in a condensed water discharge direction with respect to the fixed portion so as to open/close a downstream side of the drain pipe;

wherein the movable part comprises a movable base, and

the movable base can block the downstream side of the drain pipe without intervention of an external force.

2. An air conditioner with a non-return function according to claim 1 wherein said non-return assembly includes an elastic portion fixedly connected to said fixed portion or said drain pipe on the one hand, and connected to said movable portion on the other hand, so that in case of a need to drain condensed water, said movable portion is moved away from said fixed portion at least by means of the elastic force of said elastic portion, thereby releasing the blocking of the downstream side of said drain pipe by said movable base.

3. The air conditioner with non-return function according to claim 2, wherein the elastic portion includes a spring, and the pre-load of the spring causes the movable base to block the downstream side of the drain pipe without an external force.

4. The air conditioner with non-return function according to claim 3, wherein the spring includes a first spring section and a second spring section provided in a discharge direction of the condensed water,

wherein, the coefficient of stiffness of the first spring section is less than or equal to that of the second spring section.

5. An air conditioner with a non-return function according to claim 3 wherein said non-return assembly includes a link rod disposed along a discharge direction of condensed water, said link rod being fixedly connected to said fixing portion or said drain pipe, said spring being fitted over said link rod.

6. An air conditioner with non-return function according to claim 5, wherein said non-return assembly includes a mounting base detachably fixed to said fixing portion, said link being provided to said mounting base.

7. The air conditioner with a non-return function according to any one of claims 2 to 6, wherein the fixing portion includes a fixing base having a mounting space formed thereon, and at least a portion of the elastic portion is freely received in the mounting space.

8. The air conditioner with non-return function according to claim 7, wherein a first communicating structure is provided on the fixing base, the first communicating structure communicating with the installation space so that the condensed water in the drain pipe can be discharged through the first communicating structure and the installation space in sequence.

9. An air conditioner with non-return function according to claim 8 wherein a second communicating structure is provided on said fixing base so that condensed water can be discharged from a downstream side of said drain pipe through said second communicating structure.

10. An air conditioner with non-return function according to claim 1 wherein said movable base is provided with or formed with a sealing structure so as to:

the movable base is sealingly connected to a downstream side of the drain pipe without draining condensed water.

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