CN217031399U - Heat exchanger assembly, air duct machine and air conditioner - Google Patents

Abstract

The utility model discloses a heat exchanger assembly, an air duct machine and an air conditioner, wherein the heat exchanger assembly comprises: a water pan; the heat exchanger is arranged on the water receiving tray; the refrigerant conveying pipe comprises a first refrigerant pipe connected with the input end of the heat exchanger and a second refrigerant pipe connected with the output end of the heat exchanger; and the thermostatic expansion valve is arranged on the first refrigerant pipe and is provided with a temperature sensing bulb, the temperature sensing bulb is attached to the second refrigerant pipe, and the thermostatic expansion valve, the water pan and the heat exchanger are assembled into a whole. The technical scheme of the utility model can be sold and supplied separately so as to meet the requirement that a user only replaces the original heat exchanger.

Description

Heat exchanger assembly, air duct machine and air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a heat exchanger assembly, an air duct machine and an air conditioner.

Background

The existing air duct machine respectively assembles a heat exchanger, a water pan and an air wheel assembly on a shell, and sells and supplies the air duct machine as a whole, so that the user who only needs to buy a new heat exchanger to replace the original heat exchanger cannot well meet the requirements of the user, namely, the user only needs to buy the air wheel assembly and the shell which do not need to be replaced together when the original heat exchanger is faulty or damaged. Therefore, how to solve the pain of the user is a technical problem that needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a heat exchanger assembly, aiming at enabling the heat exchanger assembly to be sold and supplied independently so as to meet the requirement that a user only replaces the original heat exchanger.

To achieve the above object, the present invention provides a heat exchanger assembly comprising:

a water pan;

the heat exchanger is arranged on the water pan;

the refrigerant conveying pipe comprises a first refrigerant pipe connected with the input end of the heat exchanger and a second refrigerant pipe connected with the output end of the heat exchanger; and

the thermostatic expansion valve is arranged on the first refrigerant pipe and provided with a temperature sensing bulb, the temperature sensing bulb is attached to the second refrigerant pipe, and the thermostatic expansion valve, the water receiving tray and the heat exchanger are assembled into a whole.

Optionally, the heat exchanger assembly further includes a fixing block, and the thermostatic expansion valve is mounted together with the second refrigerant pipe through the fixing block.

Optionally, the heat exchanger includes a first heat exchanging portion and a second heat exchanging portion, one end of the first heat exchanging portion and one end of the second heat exchanging portion are close to each other, and the thermostatic expansion valve is located on one side of the first heat exchanging portion, which is away from the second heat exchanging portion.

Optionally, the first refrigerant pipe includes a valve inlet pipe section and a valve outlet pipe section, the thermostatic expansion valve is connected between the valve inlet pipe section and the valve outlet pipe section, and the valve outlet pipe section is located on one side of the first heat exchanging portion, which is away from the second heat exchanging portion.

Optionally, the second refrigerant pipe includes a collecting pipe section and a confluence pipe section which are connected, and the collecting pipe section is close to and connected to the output end of the first heat exchanging part; one end of the confluence pipe section, which is far away from the collecting pipe section, spans from the end part of the first heat exchanging part to the side surface of the first heat exchanging part, and at least a protective sleeve is arranged corresponding to the corner of the first heat exchanging part.

Optionally, the water pan comprises a first water pan and a second water pan which are intersected with each other, the heat exchanger is connected to the first water pan, the heat exchanger assembly has a first use state and a second use state, and in the first use state, the heat exchanger is located above the first water pan; in the second use state, the heat exchanger is positioned above the second water pan.

Optionally, the thermostatic expansion valve is located between the second water pan and the heat exchanger.

The utility model further provides an air duct machine, which comprises a shell and the heat exchanger assembly, wherein the shell is provided with a guide rail structure, and the water pan of the heat exchanger assembly is slidably mounted on the guide rail structure, so that the heat exchanger assembly is accommodated in the shell.

Optionally, the housing has two opposite air flow openings, the guide rail structure is disposed at one of the air flow openings, and the other air flow opening is provided with a handle.

Optionally, the casing is provided with a pipe hole, the refrigerant conveying pipe of the heat exchanger assembly penetrates through the pipe hole, the air duct machine further comprises a first support arranged in the pipe hole, and the refrigerant conveying pipe is mounted on the first support.

Optionally, the first bracket is provided with an avoiding hole corresponding to the pipe hole, and the refrigerant conveying pipe penetrates through the avoiding hole.

Optionally, the refrigerant conveying pipe is provided with a second support, and the second support is detachably connected to the first support.

The utility model further provides an air conditioner which comprises the heat exchanger assembly.

In the technical scheme of the utility model, the superheat degree of the heat exchanger is adjusted through the thermostatic expansion valve and the temperature sensing bulb on the thermostatic expansion valve, so that the closed-loop control of the refrigerant flow of the air conditioner is realized, whether the heat exchanger assembly is matched with an electric control unit of the original air pipe machine or not is not required to be considered, that is, the heat exchanger assembly is supported to be sold independently and is suitable for the original air pipe machine adopting the electronic expansion valve. Secondly, because thermal expansion valve, water collector and heat exchanger assembly are as an organic whole, can make things convenient for this heat exchanger subassembly independent supply of material, so further supported selling alone and the transport of this heat exchanger subassembly to convenience of customers is to the replacement operation of trouble heat exchanger. So, this heat exchanger subassembly has good commonality, can adapt to the tuber pipe machine product of more producers, more models to the demand that the user only changed original heat exchanger has been satisfied conscientiously, and then makes this heat exchanger subassembly possess good market competition.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view (front view) of one embodiment of a heat exchanger assembly of the present invention;

FIG. 2 is a top view of the heat exchanger assembly of FIG. 1;

FIG. 3 is another schematic structural view of the heat exchanger assembly of FIG. 1;

FIG. 4 is a schematic structural view of the thermal expansion valve and the refrigerant delivery pipe in FIG. 3;

FIG. 5 is a schematic structural view of the fixing block of FIG. 3;

FIG. 6 is a schematic structural diagram of an embodiment of the ducted air conditioner of the present invention;

fig. 7 is a schematic view of an installation structure between the housing and the refrigerant delivery pipe in fig. 6;

FIG. 8 is a schematic view of a configuration of the ducted air conditioner of FIG. 6 utilized in conjunction with a gas furnace;

FIG. 9 is another schematic view of the blower of FIG. 6 in use in conjunction with a gas burner.

The reference numbers illustrate:

the implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, and the like under a certain posture (as shown in the drawing), and if the certain posture is changed, the directional indications are changed accordingly.

In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B", including either A or B or both A and B. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The air duct machine generally comprises a shell, a heat exchanger, a water receiving tray and an air duct assembly, wherein the heat exchanger, the water receiving tray and the air duct assembly are arranged in the shell, the shell is provided with two opposite air flow through openings, an air duct is formed between the two air flow through openings, and the heat exchanger and the air duct assembly are both positioned in the air duct. The air is driven by the air wheel assembly to enter from an air flow through port and exchanges heat with the heat exchanger when flowing through the heat exchanger, and the air after heat exchange is discharged from another air flow through port and finally blown to the indoor space where the air pipe machine is located through the air outlet, so that the temperature of the indoor space is adjusted.

The existing air duct machine is generally characterized in that a heat exchanger, a water pan and an air wheel assembly are respectively assembled on a shell and are sold and supplied together as a whole, so that the requirements of users who only need to buy a new heat exchanger to replace an original heat exchanger cannot be well met, namely, the users only have faults or damages to the original heat exchanger, but need to buy the air wheel assembly and the shell which do not need to be replaced together. Therefore, how to solve the pain of the user is a technical problem that needs to be solved urgently by the technical personnel in the field.

In addition, it is worth mentioning that the existing air duct machine generally adopts an electronic expansion valve to adjust the flow rate of the refrigerant, because the electronic expansion valve is controlled by an electronic control unit of the air conditioner, and the electronic control unit provided by different manufacturers is not adaptive to the electronic expansion valve. For example, if the electronic control unit and the electronic expansion valve in the existing air conditioner of the user are provided by the first manufacturer, the electronic expansion valve of the second manufacturer may not be controlled by the electronic control unit of the first manufacturer to operate normally. Therefore, if a user only wants to purchase a new heat exchanger, the electronic expansion valve on the new heat exchanger may not be adapted to the electronic control unit on the original air duct machine.

In view of this, the present invention proposes a heat exchanger assembly, referring to fig. 1 and 2, which, in an embodiment of the utility model, comprises:

a water pan 10;

the heat exchanger 20 is arranged on the water pan 10;

a refrigerant delivery pipe 30 including a first refrigerant pipe 31 connected to an input end of the heat exchanger 20 and a second refrigerant pipe 32 connected to an output end of the heat exchanger 20; and

the thermostatic expansion valve 40 is arranged on the first refrigerant pipe 31, the thermostatic expansion valve 40 is provided with a temperature sensing bulb 41, the temperature sensing bulb 41 is attached to the second refrigerant pipe 32, and the thermostatic expansion valve 40, the water receiving tray 10 and the heat exchanger 20 are assembled into a whole.

It should be noted that the thermal bulb 41 in the drawings is in an uninstalled state, that is, the thermal bulb 41 in the drawings is in a state of floating half-empty. In the technical scheme of the utility model, the superheat degree of the heat exchanger 20 is adjusted through the thermostatic expansion valve 40 and the temperature sensing bulb 41 on the thermostatic expansion valve, so that the closed-loop control of the refrigerant flow of the air conditioner is realized without considering whether the heat exchanger assembly is matched with an electric control unit of the original air pipe machine, namely, the heat exchanger assembly is supported to be sold independently and is suitable for the original air pipe machine adopting the electronic expansion valve. Secondly, because the thermostatic expansion valve 40, the water pan 10 and the heat exchanger 20 are assembled into a whole, the heat exchanger assembly can be conveniently and independently supplied, so that the independent sale and transportation of the heat exchanger assembly are further supported, and the replacement operation of the fault heat exchanger 20 by a user is facilitated. So, this heat exchanger subassembly has good commonality, can adapt to the tuber pipe machine product of more producers, more models to the demand that the user only changed original heat exchanger 20 has been satisfied really, and then makes this heat exchanger subassembly possess good market competition. It should be noted that the heat exchanger 20 may be an evaporator or a condenser, and the evaporator will be described as an example hereinafter, the first refrigerant pipe 31 is an input pipe of the evaporator, and the second refrigerant pipe 32 is an output pipe of the evaporator.

Referring to fig. 3 and 4, fig. 3 is a schematic structural view of the heat exchanger assembly after the second water pan 12 is removed, and fig. 4 is a schematic structural view of the thermostatic expansion valve 40 and the refrigerant delivery pipe 30; in one embodiment, the heat exchanger assembly further includes a fixing block 50, and the thermostatic expansion valve 40 is mounted with the second refrigerant pipe 32 through the fixing block 50. Without loss of generality, the thermal expansion valve 40 has a large inertia due to its large weight, and when the heat exchanger assembly is subjected to shaking or vibration, for example, during the transfer and transportation of the heat exchanger assembly, if the support function of the thermal expansion valve 40 is insufficient, the thermal expansion valve 40 may shake significantly, collide with the surrounding evaporator or the refrigerant conveying pipe 30, or deform the first refrigerant pipe 31. The fixing block 50 can distribute part of the weight of the thermostatic expansion valve 40 to the second refrigerant pipe 32, and obtain a supplementary supporting force from the second refrigerant pipe 32, so that the thermostatic expansion valve 40 is more stably and reliably mounted.

Referring to fig. 4 and 5, in an embodiment, the fixing block 50 is provided with two fixing holes 51 at intervals, one fixing hole 51 is used for clamping the first refrigerant pipe 31, and the other fixing hole 51 is used for clamping the second refrigerant pipe 32. In this way, the thermostatic expansion valve 40 provided in the first refrigerant pipe 31 is indirectly attached to the second refrigerant pipe 32 via the first refrigerant pipe 31 and the fixing block 50. Secondly, through two fixed orifices 51 that set up at an interval, can make first refrigerant pipe 31 and second refrigerant pipe 32 spaced apart by force to avoid first refrigerant pipe 31 and second refrigerant pipe 32 these two problem that bump in rocking or vibrations, and then improve heat exchanger assembly's safety in utilization. In addition, the first refrigerant pipe 31 and the second refrigerant pipe 32 can be conveniently mounted on the fixing block 50 in a clamping manner, so that the production efficiency of the heat exchanger assembly is improved. Of course, in other embodiments, two sinking grooves may be provided at intervals on the fixing block, the first coolant pipe is adhered to one sinking groove by adhesion or screw locking, and the second coolant pipe is adhered to the other sinking groove by adhesion or screw locking.

In an embodiment, the first refrigerant pipe 31 includes a valve inlet pipe section 311 and a valve outlet pipe section 312, the thermal expansion valve 40 is connected between the valve inlet pipe section 311 and the valve outlet pipe section 312, one fixing block 50 is connected to an end of the valve inlet pipe section 311 close to the thermal expansion valve 40, and the other fixing block 50 is connected to an end of the valve outlet pipe section 312 close to the thermal expansion valve 40. Thus, the two fixing blocks 50 are installed as close to the thermostatic expansion valve 40 as possible, so that the displacement of the thermostatic expansion valve 40 when the thermostatic expansion valve 40 is shaken or vibrated is small, thereby protecting the thermostatic expansion valve 40 and the refrigerant delivery pipe 30.

In one embodiment, the fixing block 50 is further provided with a pipe notch 52 communicating with the fixing hole 51, the pipe notch 52 extending from one opening of the fixing hole 51 to the other opening. Therefore, the refrigerant delivery pipe 30 is conveniently clamped into the fixing hole 51 through the pipe gap 52, and the stroke of the refrigerant delivery pipe 30 penetrating the corresponding fixing hole 51 is saved. Of course, in other embodiments, the refrigerant delivery pipe may be inserted into the fixing hole directly along the axial direction of the fixing hole without providing the pipe gap, and is clamped in the fixing hole.

In one embodiment, the fixing block 50 is made of an elastic material, such as rubber, silica gel, foamed sponge, or foamed pearl wool. So, the elasticity material can make and pass through pipe breach 52 and have certain deformability to both easy to assemble refrigerant conveyer pipe 30, can make the refrigerant conveyer pipe 30 of the different pipe diameters of fixed block 50 adaptation again, improve the commonality of the 50 parts of fixed block. In addition, when the thermostatic expansion valve 40 and the refrigerant conveying pipe 30 are subjected to shaking or vibration, the damping device can also provide buffering and damping effects for the thermostatic expansion valve and the refrigerant conveying pipe, so that the heat exchanger assembly is protected. Of course, in other embodiments, the material of the fixing block may be configured to be a rigid material, such as aluminum, copper, or hard plastic, which is beneficial to prolonging the service life of the fixing block.

In order to more reliably limit the refrigerant delivery pipe 30 in the fixing hole 51, in an embodiment, the heat exchanger assembly further includes a limiting member 53 disposed corresponding to the pipe passing notch 52, so as to limit the expansion of the pipe passing notch 52 through the limiting member 53 or perform a stop on the pipe passing notch 52. Specifically, the stopper 53 is provided on the outer peripheral surface of the corresponding fixing hole 51, the stopper 53 extends from one side to the other side of the tube notch 52 in the circumferential direction of the fixing hole 51, and the stopper 53 blocks at least part of the tube notch 52. When the heat exchanger assembly is accidentally dropped, the refrigerant conveying pipe 30 may be pressed and expanded through the pipe gap 52, so that the refrigerant conveying pipe 30 may slip out of the pipe gap 52. In order to avoid this, the stopper 53 can prevent the refrigerant delivery pipe 30 from accidentally sliding out of the fixing hole 51. Of course, in other embodiments, the limiting member 53 is provided on the inner circumferential surface of the fixing hole 51, the limiting member 53 extends from one side to the other side of the tube gap 52 in the circumferential direction of the fixing hole 51, and the limiting member 53 at least partially covers the tube gap 52; alternatively, the retaining member 53 may be detachably attached to two opposite cross-sections of the tube gap 52.

Referring to fig. 5, in an embodiment, the limiting member 53 is configured as a limiting clip, two ends of the limiting clip are respectively provided with a buckling portion, and two opposite sides of the tube passing notch 52 are respectively provided with a buckling groove corresponding to the buckling portion, so that the limiting clip is convenient to assemble and disassemble, and is very convenient and fast to operate as if the hair clip is clamped into and out of a head. Certainly, in other embodiments, the limiting member may also be configured as a tie, and the tie is firmly tied, which is beneficial to fixing the refrigerant conveying pipe to the corresponding fixing hole; specifically, the band surrounds the outer peripheral surface of the corresponding fixing hole.

Referring to fig. 1 to 3 and 6, in an embodiment, the evaporator includes a first heat exchanging portion 21 and a second heat exchanging portion 22, one end of the first heat exchanging portion 21 and one end of the second heat exchanging portion 22 are close to each other, and the thermostatic expansion valve 40 is located at a side of the first heat exchanging portion 21 away from the second heat exchanging portion 22. That is, the first heat exchanging portion 21 and the second heat exchanging portion 22 form a V-shaped structure, it can be understood that, after the heat exchanger assembly and the housing 60 are assembled together, a space similar to a triangular prism shape is formed between one side of the first heat exchanging portion 21 away from the second heat exchanging portion 22 and the inner wall of the housing 60, and the thermal expansion valve 40 and a part of the refrigerant conveying pipes 30 are arranged by fully utilizing the space, which is beneficial to improving the universality of the thermal expansion valve 40 on different types of air duct machine products, that is, the platform design of the heat exchanger assembly, thereby reducing the product development cost. Specifically, the electronic expansion valve of the existing ducted air conditioner is usually disposed between the first heat exchanging portion 21 and the second heat exchanging portion 22, that is, in the opening of the V-shaped structure formed by the first heat exchanging portion 21 and the second heat exchanging portion 22, the disposition space itself is narrow; the sizes of the evaporators of the ducted air conditioners of different models are different, so that the arrangement space of the electronic expansion valve cannot be ensured, that is, the electronic expansion valve of the same model cannot be installed on the ducted air conditioners of certain models, and therefore the universality of the electronic expansion valve of the same model on the ducted air conditioners of different models is poor. In the technical solution of this embodiment, the thermal expansion valve 40 is disposed on the side of the first heat exchanging portion 21 away from the second heat exchanging portion 22, so that the influence of the structure and size of the evaporator on the thermal expansion valve 40 can be reduced, that is, the space formed between the first heat exchanging portion 21 and the housing 60 can be ensured in the size of different types of products, and thus the thermal expansion valve 40 and the installation structure thereof can be adapted to more types of air pipe machines, that is, the universality of the thermal expansion valve 40 on different types of air pipe machine products is improved. Of course, in other embodiments, the thermostatic expansion valve may also be located on the side of the second heat exchanging portion away from the first heat exchanging portion.

Referring to fig. 3, 4 and 6, in an embodiment, the valve outlet pipe section 312 is located at a side of the first heat exchanging portion 21 away from the second heat exchanging portion 22. In this embodiment, the outlet valve pipe section 312 has two bends, specifically, referring to fig. 2 to 4, the outlet valve pipe section 312 extends from the output port of the thermal expansion valve 40 in a direction away from the inlet valve pipe section 311, then extends downwards for a length after bending for a certain angle (for example, 90 °), and extends in a direction close to the inlet valve pipe section 311 after bending again (for example, 90 °), that is, the outlet valve pipe section 312 forms a U-shaped structure. It should be noted that the valve outlet pipe sections 312 of the U-shaped structure are located on the side of the first heat exchanging portion 21 away from the second heat exchanging portion 22. In this way, the outlet valve pipe 312 is used as a pre-cooling pipe, that is, the air flowing through the air duct 62 in the housing 60 is used to further exchange heat with the refrigerant flowing out of the thermostatic expansion valve 40, so as to further cool the refrigerant before flowing into the evaporator. It can be understood that in the cooling mode, the compressor is usually operated at a low-medium frequency; the refrigerant passing through the thermostatic expansion valve 40 is in a low-temperature liquid state, and the temperature of the refrigerant in the precooling pipe section is higher than that of air outside the precooling pipe, so that the precooling pipe section with a longer path can exchange heat with the air outside the precooling pipe in airflow, and further cooling of the refrigerant is realized. Of course, in other embodiments, the valve outlet pipe section may be located on the side of the sideboard of the first heat exchanging part.

Referring to fig. 2 to 4 and 6, in an embodiment, the second refrigerant pipe 32 includes a collecting pipe section 321 and a collecting pipe section 322 connected to each other, and the collecting pipe section 321 is close to and connected to an output end of the first heat exchanging part 21; one end of the collecting pipe section 322, which is far away from the collecting pipe section 321, spans from the end of the first heat exchanging portion 21 to the side of the first heat exchanging portion 21, and is provided with a sheath 323 at least corresponding to the corner of the first heat exchanging portion 21. It can be understood that the output end of the first heat exchanging part 21 is located on the side plate thereof, and the collecting pipe section 321 is supported by the side plate and the output ends of the plurality of evaporators together, so that shaking displacement is not easy to occur; and the end of the bus pipe section 322 remote from the collecting pipe section 321 is relatively easy to collide with the corner of the first heat exchanging part 21 in shaking or vibration because it is not supported by other mounting structures. The sheath 323 is arranged in the area corresponding to the corner of the first heat exchanging part 21, so that the second refrigerant pipe 32 can be protected from being damaged when colliding with the second heat exchanging part 22, and the use safety and the service life of the heat exchanger assembly are improved. Of course, in other embodiments, the collecting pipe section may also be provided with a sheath corresponding to the corners of the first heat exchanging portion and the second heat exchanging portion.

The sheath 323 can be made of various structures, for example, in one embodiment, the sheath 323 is an elastic sleeve, such as a foam cotton sheath or a silicone sheath, disposed around the bus duct section 322. Of course, in other embodiments, the sheath may be provided with a notch, the bus pipe segment is inserted into the sheath through the notch, and the sheath is adhered to the outer periphery of the bus pipe segment; the material of the sheath may also be rigid, such as rigid plastic, steel, etc.

Referring to fig. 1, in an embodiment, the water pan 10 includes a first water pan 11 and a second water pan 12 intersecting with each other, the evaporator is connected to the first water pan 11, the heat exchanger assembly has a first usage state and a second usage state, and in the first usage state, the evaporator is located above the first water pan 11; in the second usage state, the evaporator is located above the second water-receiving tray 12. It should be noted that the first water pan 11 is annularly disposed, and encloses an avoidance passing opening (not shown in the drawings) for passing the air flow. Therefore, the heat exchanger assembly can be switched between two use states, namely vertical installation (first use state) and horizontal installation (second use state), through the first water pan 11 and the second water pan 12, so that the heat exchanger assembly can be suitable for more use scenes. Specifically, please refer to fig. 8 and 9 together, which are schematic diagrams of a scene where the heat exchanger assembly is used in cooperation with a gas furnace 81 and an air duct 82. In fig. 8, the heat exchanger assembly is installed vertically, the first water pan 11 is located below the evaporator, and it should be noted that the airflow direction may be from bottom to top as shown in the figure or from top to bottom; in fig. 9, the heat exchanger assembly is installed horizontally, the second water pan 12 is located below the evaporator, and it should be noted that the airflow direction may be from right to left as shown in the figure, or from left to right.

Referring to fig. 1, 2 and 9, in one embodiment, a thermostatic expansion valve 40 is located between the second drip tray 12 and the evaporator. Thus, when the heat exchanger assembly is installed horizontally (in a second use state), if condensed water appears on the thermostatic expansion valve 40 and the refrigerant output pipe section connected with the thermostatic expansion valve, the condensed water can directly drip on the second water pan 12, and the problem that the condensed water drips on the evaporator and is frozen on the evaporator fins is avoided. Secondly, if necessary, the second water pan 12 can be used to add an installation structure to the thermostatic expansion valve 40, so as to improve the installation stability of the thermostatic expansion valve 40. Moreover, during transportation, the second water pan 12 can be used to temporarily enhance the fixation of the thermostatic expansion valve 40, for example, a tie is used to connect the thermostatic expansion valve 40 and the second water pan 12 together, thereby avoiding the problem that the thermostatic expansion valve 40 collides with the evaporator or the refrigerant delivery pipe 30.

Referring to fig. 1, in an embodiment, the second water-receiving tray 12 includes a body section 121 and an extension section 122, the body section 121 is connected to the first water-receiving tray 11, and the extension section 122 is connected to an end of the body section 121 far away from the first water-receiving tray 11. In this way, the second water pan 12 can be adapted to evaporators of different sizes, that is, for the evaporator model with a smaller size, the second water pan 12 only needs to be correspondingly provided with the body section 121; corresponding to the type of the evaporator with a larger size, the second water-receiving tray 12 is provided with the body section 121 and the extension section 122, so that the universality of the second water-receiving tray 12 is improved, and the development cost of series products is saved.

Referring to fig. 6, the present invention further provides an air duct machine, including a housing 60 and the heat exchanger assembly, where the specific structure of the heat exchanger assembly refers to the foregoing embodiments, and since the air duct machine adopts all technical solutions of the foregoing embodiments, at least all beneficial effects brought by the technical solutions of the foregoing embodiments are provided, and details are not repeated here. Wherein, the casing 60 is provided with a guide rail structure (not shown in the drawings), and the water pan 10 of the heat exchanger assembly is slidably mounted on the guide rail structure, and the heat exchanger assembly is accommodated in the casing 60. Specifically, the guide rail structure may be one of a slide rail and a slide groove, and the water pan 10 is correspondingly provided with the slide groove or the slide rail. Of course, in other embodiments, the guide rail structure may further include a guide rod, the water receiving tray is provided with a sliding ring corresponding to the guide rod, and the sliding ring is sleeved on and slidably connected to the guide rod. So, through the guide rail structure, can convenience of customers dismantle by oneself, change installation heat exchanger subassembly to further support selling alone and supplying a supply of material of heat exchanger subassembly.

Referring to fig. 6, in an embodiment, the housing 60 has two opposite air flow openings 61, the air duct 62 is connected between the two air flow openings 61, the guide rail structure is disposed at one air flow opening 61 and is disposed corresponding to the avoiding opening of the first water receiving tray 11, and the other air flow opening 61 is disposed with a handle 71. Therefore, a user can conveniently find a proper force application point when carrying the air duct machine through the handle 71, and the problem that the refrigerant conveying pipe 30 is bent or even broken due to the fact that the user mistakenly takes the refrigerant conveying pipe 30 as the force application point is avoided.

In one embodiment, the handle 71 is removably attached to the airflow opening 61. Specifically, the handle 71 is attached to the inner wall of the airflow passage 61 by screws. Therefore, the lifting handle 71 can be removed in time after transportation and carrying, and the problem that the structure of the lifting handle 71 influences the gas flow and the flow cross section area on the air flow through opening 61 when the air duct machine works is avoided. Of course, the handle 71 can be mounted on the airflow opening 61 again when carrying and transporting again are required. Of course, in other embodiments, the handle may be attached to the airflow opening by snap-fit structures or rivets.

Referring to fig. 7, in an embodiment, the housing 60 is provided with a through hole 63, the refrigerant delivery pipe 30 of the heat exchanger assembly is inserted into the through hole 63, the air conditioner further includes a first bracket 72 disposed in the through hole 63, and the refrigerant delivery pipe 30 is mounted on the first bracket 72. Specifically, in the present embodiment, the refrigerant conveying pipe 30 is provided with a second bracket 73, so as to be mounted on the first bracket 72 through the second bracket 73. Thus, the installation stability of the refrigerant delivery pipe 30 can be improved, and the housing 60 and the first bracket 72 provide a supporting function for the refrigerant delivery pipe 30, so that the thermal expansion valve 40 is more stably and reliably installed. Secondly, through setting up second support 73, can install first support 72 on casing 60 earlier, install refrigerant conveyer pipe 30 on passing tube hole 63 again, through the connection of second support 73 with first support 72 at last, accomplish whole installations to refrigerant conveyer pipe 30, this installation simple operation to can improve the assembly efficiency of tuber pipe machine. Certainly, in other embodiments, the refrigerant conveying pipe may also be inserted into the through-pipe hole, and the foam sponge is filled in the through-pipe hole.

In one embodiment, the second bracket 73 is detachably connected to the first bracket 72. Specifically, second support 73 passes through the screw lock and attaches on first support 72, so, can support the user to remove second support 73 by oneself and first support 72's relation of being connected to dismantle the heat exchanger subassembly from casing 60 conveniently, thereby convenience of customers purchases after the new heat exchanger subassembly, changes original heat exchanger subassembly by oneself. Of course, in other embodiments, the second bracket may be mounted on the first bracket by a snap structure or a rivet, or may be fixed to the first bracket by welding.

Referring to fig. 7, in an embodiment, the first bracket 72 is provided with an avoiding hole 721 corresponding to the tube hole 63, and the refrigerant conveying tube 30 is inserted through the avoiding hole 721. In this way, the first bracket 72 forms a closed loop structure, and can improve its own structural strength, thereby improving the support stability of the refrigerant conveying pipe 30. Of course, in other embodiments, the first bracket may be provided with a notch corresponding to the tube hole, and the refrigerant conveying tube portion is located in the notch.

In one embodiment, the first bracket 72 includes a bracket body 722 and a mounting flange 723 formed by folding a side edge of the bracket body 722, the clearance hole 721 is located on the bracket body 722, and the second bracket 73 is screwed and locked on the mounting flange 723. In this embodiment, the mounting flange 723 extends along the axial direction of the refrigerant conveying pipe 30, and the screw is mounted in the direction intersecting the axial direction of the refrigerant conveying pipe 30, so that a worker can conveniently mount the screw on the mounting flange 723.

In an embodiment, the second bracket 73 includes an installation plate 731, and a clamping portion 732 formed by bending one side edge of the installation plate 731, the installation plate 731 is connected with an installation flange 723 by a screw, the clamping portion 732 and the installation plate 731 together enclose a clamping hole 733, and an end of the clamping portion 732 and the installation plate 731 form a clamping gap (not shown in the drawing) at an interval, the clamping gap is communicated with the clamping hole 733, and the refrigerant conveying pipe 30 can be clamped into the clamping hole 733 through the clamping gap. Therefore, the second support 73 can be conveniently assembled with the refrigerant conveying pipe 30, the second support 73 can slide on the refrigerant conveying pipe 30 to be adjusted to a proper installation position, and the second support 73 can be suitable for different types of products or different installation positions on the same type of product due to the position adjustability of the second support 73.

The utility model further provides an air conditioner, which comprises the heat exchanger assembly, the specific structure of the heat exchanger assembly refers to the embodiments, and the air conditioner adopts all technical schemes of all the embodiments, so that the air conditioner at least has all beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated herein.

The above description is only an alternative embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings or directly/indirectly applied to other related technical fields under the inventive concept of the present invention are included in the scope of the present invention.

Claims (12)

1. A heat exchanger assembly, comprising:

a water pan;

the heat exchanger is arranged on the water receiving tray;

the refrigerant conveying pipe comprises a first refrigerant pipe connected with the input end of the heat exchanger and a second refrigerant pipe connected with the output end of the heat exchanger; and

the thermostatic expansion valve is arranged on the first refrigerant pipe and provided with a temperature sensing bulb, the temperature sensing bulb is attached to the second refrigerant pipe, and the thermostatic expansion valve, the water pan and the heat exchanger are assembled into a whole.

2. The heat exchanger assembly of claim 1, further comprising a mounting block, wherein the thermostatic expansion valve is mounted with the second refrigerant tube via the mounting block.

3. The heat exchanger assembly as claimed in claim 1, wherein the heat exchanger comprises a first heat exchanging portion and a second heat exchanging portion, one end of the first heat exchanging portion and one end of the second heat exchanging portion are close to each other, and the thermostatic expansion valve is located at a side of the first heat exchanging portion away from the second heat exchanging portion.

4. The heat exchanger assembly according to claim 3, wherein the first refrigerant pipe comprises an inlet valve pipe section and an outlet valve pipe section, the thermostatic expansion valve is connected between the inlet valve pipe section and the outlet valve pipe section, and the outlet valve pipe section is located on a side of the first heat exchanging portion facing away from the second heat exchanging portion.

5. The heat exchanger assembly as claimed in claim 3, wherein the second refrigerant pipe comprises a collecting pipe section and a confluence pipe section which are connected, and the collecting pipe section is close to and connected with the output end of the first heat exchanging part; one end of the confluence pipe section, which is far away from the collecting pipe section, spans from the end part of the first heat exchanging part to the side surface of the first heat exchanging part, and at least a protective sleeve is arranged corresponding to the corner of the first heat exchanging part.

6. The heat exchanger assembly of claim 1, wherein the drip tray comprises first and second intersecting drip trays, the heat exchanger being connected to the first drip tray, the heat exchanger assembly having a first use position in which the heat exchanger is positioned above the first drip tray and a second use position in which the heat exchanger is positioned above the first drip tray; in the second use state, the heat exchanger is positioned above the second water pan.

7. The heat exchanger assembly of claim 6, wherein the thermostatic expansion valve is positioned between the second water tray and the heat exchanger.

8. A ducted air conditioner comprising a housing and a heat exchanger assembly as claimed in any one of claims 1 to 7, the housing being provided with a track arrangement to which a drip tray of the heat exchanger assembly is slidably mounted and which accommodates the heat exchanger assembly within the housing.

9. The ducted air conditioner of claim 8 wherein said housing has opposed air flow openings, said rail structure being provided at one of said air flow openings and a handle being provided at the other of said air flow openings.

10. The duct machine according to claim 8, wherein the housing is provided with a through-hole, the refrigerant delivery pipe of the heat exchanger assembly is inserted into the through-hole, the duct machine further comprises a first bracket provided in the through-hole, and the refrigerant delivery pipe is mounted to the first bracket.

11. The ducted air conditioner of claim 10, wherein the first bracket is provided with an avoidance hole corresponding to the duct hole, and the refrigerant delivery pipe is inserted into the avoidance hole;

and/or the refrigerant conveying pipe is provided with a second support, and the second support is detachably connected to the first support.

12. An air conditioner characterized by comprising the heat exchanger assembly as recited in any one of claims 1 to 7.

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