Wall-mounted unit and air conditioner

Abstract

The utility model discloses a wall-mounted unit and an air conditioner, relates to the field of air conditioners, and aims to improve the performance of an air conditioning unit. The wall-mounted unit comprises a shell, a heat exchanger, a refrigerant pipeline and a throttling element. The shell comprises a panel and a back plate; and a cavity between the panel and the back plate is a mounting cavity. The heat exchanger is installed in the shell. The refrigerant pipeline communicates with the heat exchanger and is located in the shell. The throttling element is communicated with the refrigerant pipeline; the throttling element is located in the shell, and the distance between the throttling element and the back plate is smaller than the distance between the throttling element and the panel. Or the throttling element is mounted at the water outlet of the shell. According to the technical scheme, the throttling element is installed in the gap in the shell, the heat exchanger does not need to be shorted, the size of the shell does not need to be increased either, the heat exchange performance of the air conditioning unit is improved, and the cost of the air conditioning assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the field of air conditioners, and particularly relates to a wall-mounted machine and an air conditioner. Background Art

[0002] Compared with household wall-mounted machines, multi-connected wall-mounted machines need to add a throttling component to control the refrigerant flow rate distributed to each indoor unit in the system. In the field of multi-connected air conditioners, with the proposal of the design concept of integrating variable-frequency air conditioner components and miniaturizing their sizes, the size of the wall-mounted machine housing is getting smaller and smaller. Limited by the internal space of the housing, the added throttling component of the multi-connected wall-mounted machine needs to cut short the heat exchanger or separately add an expansion valve box outside the machine.

[0003] The inventor found that there are at least the following problems in the prior art: In the prior art, the electronic expansion valve is installed inside the housing by cutting short the heat exchanger. This method will not only affect the performance of the unit, resulting in insufficient cooling capacity and after-sales complaints, but also increase the cost of the unit. Summary of the Utility Model

[0004] The utility model provides a wall-mounted machine and an air conditioner to optimize the structure and performance of the air conditioner unit.

[0005] An embodiment of the utility model provides a wall-mounted machine, including a housing, a heat exchanger, a refrigerant pipeline and a throttling element. The housing includes a front panel and a back panel; the front panel and the back panel enclose an installation cavity. The heat exchanger is installed inside the installation cavity of the housing. The refrigerant pipeline is communicated with the heat exchanger, and the refrigerant pipeline is located inside the installation cavity of the housing. The throttling element is communicated with the refrigerant pipeline; the throttling element is located inside the installation cavity of the housing, and the distance between the throttling element and the back panel is less than the distance between the throttling element and the front panel; or, the throttling element is installed at the drainage outlet of the housing.

[0006] In some embodiments, the wall-mounted machine further includes a mounting seat, and the mounting seat includes a mounting hole; the mounting seat is fixedly connected to or integrated with the housing, the mounting seat is located on the back panel of the housing and protrudes towards the inside of the housing. An installation groove is provided inside the housing; the throttling element includes a first connecting pipe and a second connecting pipe; the first connecting pipe is installed in the mounting hole, and the second connecting pipe is installed in the installation groove.

[0007] In some embodiments, the material of the mounting seat is rubber or plastic, and the mounting seat is integrated with the back panel.

[0008] In some embodiments, the mounting base includes a base and a pressing block. The bottom of the base is fixedly connected to or integral with the housing, and a semi-circular first groove is provided at the top of the base. The pressing block is detachably and fixedly connected to the base; the pressing block is provided with a second groove that cooperates with the first groove; the first groove and the second groove cooperate to form the mounting hole, and the first connecting pipe of the throttling element passes through the mounting hole.

[0009] In some embodiments, a first connecting hole is further provided at the top of the base, the pressing block is provided with a second connecting hole, and the wall-mounted machine further includes a fastener that passes through the first connecting hole and the second connecting hole to detachably connect the base and the pressing block.

[0010] In some embodiments, the number of the first connecting holes and the second connecting holes is two, the first connecting holes and the second connecting holes are arranged in one-to-one correspondence, the first groove is located between the two first connecting holes, and the second groove is located between the two second connecting holes.

[0011] In some embodiments, a sinking groove is provided in the middle of the base, and the sinking groove communicates with the first groove.

[0012] In some embodiments, the mounting base further includes a first buffer pad and a second buffer pad. The first buffer pad is disposed on the inner wall of the first groove; the second buffer pad is disposed on the inner wall of the second groove. Wherein, the first buffer pad and the second buffer pad are both clamped between the base and the pressing block, and the first buffer pad and the second buffer pad wrap the first connecting pipe of the throttling element.

[0013] In some embodiments, the housing further includes a partition board, the partition board is fixedly connected to or integral with the backboard, and the mounting groove is provided at the top of the partition board, and the second connecting pipe of the throttling element is snapped into the mounting groove.

[0014] In some embodiments, the wall-mounted machine further includes a first support member, the first support member is located near the mounting base, and the first support member is fixedly connected to or integral with the housing, and the first support member is configured to support the first connecting pipe of the throttling element.

[0015] In some embodiments, the first support member abuts against the mounting base or the gap between the first support member and the mounting base is less than a set value.

[0016] In some embodiments, the set value is 5 mm to 10 mm.

[0017] In some embodiments, the wall-mounted machine further includes a clamp which is fixedly connected to or integrated with the housing. The clamp is located on the back plate of the housing and protrudes towards the interior of the housing.

[0018] In some embodiments, the wall-mounted machine further includes a second support member which is located near the clamp and is fixedly connected to or integrated with the housing. The second support member is configured to support the first connecting pipe of the throttling element.

[0019] In some embodiments, the wall-mounted machine further includes a sound insulation bag which is wrapped around the outside of the throttling element; the sound insulation bag is configured to have a closable mouth.

[0020] In some embodiments, the material of the sound insulation bag is selected from at least one of the following: PET felt, sound insulation cotton.

[0021] In some embodiments, the wall of the sound insulation bag includes at least two sound insulation layers.

[0022] In some embodiments, the wall-mounted machine further includes an electrical box which is installed inside the installation cavity; the throttling element is located in the gap between the electrical box and the heat exchanger.

[0023] In some embodiments, the wall-mounted machine further includes a pressing plate which is detachably connected to the back plate, and the pressing plate presses the first connecting pipe and the second connecting pipe of the throttling element.

[0024] An embodiment of the present invention also provides an air conditioner, which includes the wall-mounted machine provided by any technical solution of the present invention.

[0025] In some embodiments, the number of the wall-mounted machines is multiple.

[0026] The wall-mounted machine provided by the above technical solution utilizes the space in the area near the wall or at the drainage opening inside the wall-mounted machine to install the throttling element. Moreover, the size of this space is sufficient to install the throttling element, without the need to increase the size of the housing of the wall-mounted machine or reduce the size of the heat exchanger inside the wall-mounted machine, ensuring the heat exchange performance of the wall-mounted machine, reducing the cost of the air-conditioning components, and also meeting the requirement of miniaturization of the wall-mounted machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0028] Figure 1 It is a schematic three-dimensional structure diagram of the wall-mounted machine provided by an embodiment of the present invention.

[0029] Figure 2 A three-dimensional enlarged schematic diagram of the installation position of the throttling element of the wall-mounted machine provided by the embodiment of the present utility model.

[0030] Figure 3 A side view enlarged schematic diagram of the throttling element of the wall-mounted machine provided by the embodiment of the present utility model.

[0031] Figure 4 A three-dimensional enlarged schematic diagram of the throttling element of the wall-mounted machine provided by the embodiment of the present utility model.

[0032] Figure 5 A three-dimensional schematic diagram of the connection relationship between the back plate and the mounting seat of the wall-mounted machine provided by the embodiment of the present utility model.

[0033] Figure 6 It is Figure 5 an enlarged schematic diagram of.

[0034] Figure 7 An enlarged schematic diagram of the base and the first support member of the wall-mounted machine provided by the embodiment of the present utility model.

[0035] Figure 8 An enlarged schematic diagram of the pressing seat block of the wall-mounted machine provided by the embodiment of the present utility model.

[0036] Figure 9 A three-dimensional schematic diagram of the first buffer pad and the second buffer pad of the wall-mounted machine provided by the embodiment of the present utility model.

[0037] Figure 10 A schematic diagram of the pressing plate of the wall-mounted machine pressing the first connecting pipe and the second connecting pipe provided by the embodiment of the present utility model.

[0038] Figure 11 An enlarged schematic diagram of the clamp of the wall-mounted machine provided by other embodiments of the present utility model.

[0039] Figure 12 Another enlarged schematic diagram of the clamp of the wall-mounted machine provided by other embodiments of the present utility model.

[0040] Figure 13 An enlarged schematic diagram of the wall-mounted machine at the throttling element provided by still other embodiments of the present utility model.

[0041] Reference numerals:

[0042] 1. Housing; 2. Heat exchanger; 3. Refrigerant pipeline; 4. Throttling element; 5. Mounting seat; 6. First support member; 7. Clamp; 8. Second support member; 9. Sound insulation bag; 10. Electrical box; 15. Pressing plate; 16. Fastener; 17. Wall-mounted plate;

[0043] 11. Panel; 12. Back panel; 13. Installation groove; 14. Partition board;

[0044] 41. First connecting pipe; 42. Second connecting pipe;

[0045] 51. Installation hole; 52. Base; 53. Compression block; 54. First buffer pad; 55. Second buffer pad;

[0046] 521. First groove; 522. First connecting hole; 520. Counterbore; 531. Second groove; 532. Second connecting hole. Detailed implementation mode

[0047] The following combines Figures 1 to 13 to elaborate more details on the technical solutions provided by the present utility model. The description of the exemplary embodiments is merely illustrative and shall in no way be construed as any limitation to the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments introduced here. These embodiments are provided to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values set forth in these embodiments should be construed as merely exemplary and not as limitations.

[0048] The "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different parts. Words such as "including" or "comprising" mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0049] In the present disclosure, when it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When it is described that a specific device is connected to other devices, the specific device may be directly connected to other devices without an intermediate device, or may not be directly connected to other devices but have an intermediate device.

[0050] All terms used in the present disclosure, including technical terms or scientific terms, have the same meaning as understood by those of ordinary skill in the art to which the present disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as those, should be construed as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0051] Known technologies, methods, and devices that are well-known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices are considered part of the specification.

[0052] The dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The same reference numerals are attached to common structural elements or the same type of structural elements in the respective drawings, and repeated descriptions thereof are appropriately omitted.

[0053] The inventors have found through research that a multi-split air conditioner includes multiple wall-mounted units, and the wall-mounted units are located inside the room. The industry development requires the wall-mounted units to be miniaturized and have the smallest possible size. Since the multi-split air conditioner includes multiple wall-mounted units, each wall-mounted unit needs to separately adjust the refrigerant flow rate entering it. In order to separately control the refrigerant flow rate of each wall-mounted unit, each wall-mounted unit needs to be equipped with a throttling element separately. The throttling element is an additional component, and it is difficult to install inside the housing of the wall-mounted unit due to its small size. In the related art, in order to install the throttling element, the following two methods are adopted: The first installation method is to increase the size of the housing of the wall-mounted unit. After the size of the housing is increased, there is enough space inside the housing to install the throttling element. The second installation method is not to increase the size of the housing of the wall-mounted unit, but to shorten the size of the internal heat exchanger of the wall-mounted unit, so that space can also be left inside the housing of the wall-mounted unit to install the throttling element. The inventors have found that the first method mentioned above does not meet the current requirements for miniaturization of wall-mounted units, and increasing the size of the housing will inevitably increase the product cost. The second method is to shorten the size of the heat exchanger, so that the cooling capacity of the heat exchanger is insufficient, the heat exchange efficiency will be affected, and the performance of the multi-split air conditioner will be reduced. After research, the inventors have proposed the following technical solution, which does not require increasing the size of the housing of the wall-mounted unit, nor shortening the size of the heat exchanger of the wall-mounted unit, and can balance the requirements of miniaturization and heat exchange efficiency.

[0054] See Figures 1 to 3 , some embodiments of the present utility model provide a wall-mounted unit, including a housing 1, a heat exchanger 2, a refrigerant pipeline 3, and a throttling element 4. The housing 1 includes a front panel 11 and a back panel 12; the front panel 11 and the back panel 12 enclose an installation cavity. The heat exchanger 2 is installed inside the installation cavity of the housing 1. The refrigerant pipeline 3 is communicated with the heat exchanger 2, and the refrigerant pipeline 3 is located inside the installation cavity of the housing 1. The throttling element 4 is communicated with the refrigerant pipeline 3; the throttling element 4 is located inside the installation cavity of the housing 1. The distance between the throttling element 4 and the back panel 12 is less than the distance between the throttling element 4 and the front panel 11.

[0055] The inventors have found through research that there is space in the area near the wall inside the wall-mounted unit to install the throttling element 4. Moreover, the size of this space is sufficient to install the throttling element 4, without the need to increase the size of the housing 1 of the wall-mounted unit, nor to reduce the size of the internal heat exchanger 2 of the wall-mounted unit.

[0056] The housing 1 can be made of high-strength cold-rolled steel plates or plastic materials, with its surface treated by powder spraying, having good corrosion resistance and aesthetics. The housing 1 includes a front panel 11, side panels and a back panel 12, and the materials of the three can be the same or different. The back panel 12 can also be called the bottom shell. The front panel 11 is equipped with one or more air outlets to ensure smooth air circulation. The side panels and the back panel 12 are both detachably connected to the front panel 11. On the one hand, it can increase the installation convenience of the components inside the housing 1, and on the other hand, it can meet the connection requirements of pipeline systems such as the refrigerant pipeline 3 and wires. In addition, heat insulation materials can be provided inside the housing 1 to reduce heat conduction and noise interference, reduce the noise of the wall-mounted air conditioner and improve the heat exchange efficiency of the wall-mounted air conditioner.

[0057] The cavity surrounded by the front panel 11, side panels and back panel 12 serves as an installation cavity, and the heat exchanger 2, the throttling element 4 and the refrigerant pipeline 3 therebetween are all arranged inside the installation cavity.

[0058] The back panel 12 of the housing 1 faces the wall, and the entire wall-mounted air conditioner is fixed to the wall through connecting components such as the back panel 12, the wall-mounted plate 17 and expansion bolts. The wall-mounted plate 17 and the expansion bolts can both adopt existing structures. The back panel 12 can be formed by plastic injection molding or made of cold-rolled steel plates. The structure of the back panel 12 is relatively flexible and can be determined according to the installation requirements of each component inside the installation cavity.

[0059] The heat exchanger 2 in the wall-mounted air conditioner, also known as the indoor heat exchanger, is connected to components such as a compressor, an outdoor heat exchanger, a four-way reversing valve (not shown in the figure), and a gas-liquid separator (not shown in the figure) through the refrigerant pipeline 3, and together they form a refrigerant circulation system to achieve heat exchange, so as to achieve the effect of refrigeration or heating. The heat exchanger 2 has various structural forms, and specifically, a finned heat exchanger can be adopted. The finned heat exchanger includes copper tubes and fins. The copper tubes have good heat conductivity and can effectively transfer the heat of the refrigerant. The fins can increase the heat exchange area and improve the heat exchange efficiency. The surface of the heat exchanger 2 can be processed by processes such as an anti-corrosion coating to resist corrosion in a humid environment and extend the service life of the heat exchanger 2.

[0060] The heat exchanger 2 is the component that occupies the largest space inside the housing 1. The inventor has found through research that there is a gap sufficient to install the throttling element 4 at the gap between the heat exchanger 2 and the housing 1 and at the place where the refrigerant pipeline 3 is led out from the wall-mounted air conditioner. The throttling element 4 is installed in this gap and is placed as close as possible to the side of the housing 1 facing the wall, that is, the rear side of the wall-mounted air conditioner. At this position, the distance between the throttling element 4 and the back panel 12 is less than the distance between the throttling element 4 and the front panel 11, that is, the throttling element 4 is closer to the wall and farther from the front panel 11.

[0061] In the above technical solution, by arranging the throttling element 4 at this position, the existing gap inside the housing 1 can be fully utilized, without the need to increase the size of the housing 1, let alone reduce the size of the heat exchanger 2 of the wall-mounted unit. This enables the throttling element 4 to be built into the housing 1 of the wall-mounted unit without changing the overall size of the wall-mounted unit and the overall size of the heat exchanger 2, ensuring the heat exchange performance of the wall-mounted unit and meeting the requirements of miniaturization.

[0062] The throttling element 4 is, for example, an electronic expansion valve. There are various structural forms of electronic expansion valves, such as H-type electronic expansion valves and T-type electronic expansion valves. In some embodiments, the H-type expansion valve is taken as an example for description. The electronic expansion valve has high adjustment accuracy and excellent response speed, and can quickly adjust the refrigerant flow according to actual needs. Under high load conditions, the refrigerant flow is increased through the electronic expansion valve to improve the refrigeration effect; while under low load conditions, the flow is reduced through the electronic expansion valve to avoid unnecessary energy consumption. This high-precision control significantly improves the refrigeration efficiency of the system, has a fast response speed, ensures the good operation of the system under different loads, avoids waste of refrigerant, and effectively reduces energy loss. In addition, the electronic expansion valve can maintain stable performance under various working conditions and adapt to different refrigeration requirements in a multi-connected system.

[0063] See Figures 3 to 9 , in some embodiments, the wall-mounted unit further includes a mounting seat 5. The mounting seat 5 includes a mounting hole 51, see Figure 4 as shown. The mounting seat 5 is fixedly connected to the housing 1, or the mounting seat 5 is integral with the housing 1. The mounting seat 5 is located on the back panel 12 of the housing 1 and protrudes towards the inside of the housing 1. An installation groove 13 is provided inside the housing 1, see Figure 5 or Figure 6 as shown. The throttling element 4 includes a first connecting pipe 41 and a second connecting pipe 42, see Figure 3 as shown. The first connecting pipe 41 is installed in the mounting hole 51, and the second connecting pipe 42 is installed in the installation groove 13.

[0064] The back panel 12 can be made of plastic or a metal plate. The mounting seat 5 can be integrally formed with the back panel 12, or fixed or welded to the back panel 12. The mounting seat 5 protrudes inside the housing 1 because after the throttling element 4 is installed inside the housing 1, the first connecting pipe 41 of the throttling element 4 is suspended, and there is no supporting, fixing or other connection relationship between the first connecting pipe 41 and other components inside the housing 1. The mounting seat 5 protrudes from the inner wall of the back panel 12 towards the inside of the housing 1, which can better support and fix the first connecting pipe 41 of the throttling element 4.

[0065] The mounting base 5 positions and fixes the throttling element 4. The throttling element 4 includes a first connecting pipe 41 and a second connecting pipe 42. One of the first connecting pipe 41 and the second connecting pipe 42 is for fluid inflow, and the other is for fluid outflow. During the process of fluid inflow and outflow through the throttling element 4, the change in the flow rate of the refrigerant will cause noise in the throttling element 4. A relatively high flow rate of the refrigerant may generate eddy currents and bubbles. If the refrigerant flow rate is uneven, it may cause violent vibration of the throttling element 4 during the opening and closing processes, thereby increasing the noise of the system. For this reason, in the embodiment of the present utility model, a mounting base 5 is provided inside the housing 1 of the wall-mounted machine. The mounting base 5 positions and fixes the throttling element 4, so that the first connecting pipe 41 of the throttling element 4 is fixedly connected to the back plate 12 of the housing 1. After being fixed by the mounting base 5, the throttling element 4 is not prone to shaking during the operation of the wall-mounted machine, nor is it prone to generating noise due to changes in the flow rate and flow volume of the refrigerant, reducing the noise of the wall-mounted machine.

[0066] See Figures 4 to 7 , in some embodiments, the material of the mounting base 5 is rubber or plastic, and the mounting base 5 and the back plate 12 are integral.

[0067] The mounting base 5 is made of rubber or plastic, and the material of the mounting base 5 is the same as that of the back plate 12. During the manufacturing process of the back plate 12, the mounting base 5 and the back plate 12 can be manufactured at one time, and the connection between the manufactured mounting base 5 and the back plate 12 is very firm. The mounting base 5 is not prone to falling off or being damaged. The throttling element 4 fixed by the mounting base 5 can also be firmly installed. During the use of the wall-mounted machine, the throttling element 4 is not prone to shaking, has low working noise, and the probability of failures such as loosening of the throttling element 4 is small, and the performance reliability of the wall-mounted machine is high.

[0068] See Figures 4 to 8 , especially Figure 7 and Figure 8 , in some embodiments, the mounting base 5 includes a base 52 and a pressing block 53. The bottom of the base 52 is fixedly connected to or integral with the housing 1. A semi-circular first groove 521 is provided at the top of the base 52, see Figure 7 shown. The pressing block 53 is detachably fixedly connected to the base 52; the pressing block 53 is provided with a second groove 531 that cooperates with the first groove 521, see Figure 8 shown. The first groove 521 and the second groove 531 cooperate to form a mounting hole 51, and the first connecting pipe 41 of the throttling element 4 passes through the mounting hole 51.

[0069] The base 52 is a fixed part, and the pressing block 53 is a detachable part. During installation, the first connecting pipe 41 of the throttling element 4 is installed first, and after the throttling element 4 is installed in place, the throttling element 4 is fixedly connected to the mounting seat 5. Here, the mounting seat 5 adopts a structure in which two parts are assembled to wrap a local area of the first connecting pipe 41, which can reduce the difficulty of connecting the mounting seat 5 and the first connecting pipe 41 and improve the installation efficiency.

[0070] The base 52 is a block-shaped structure, and its height is slightly greater than the distance between the first connecting tube 41 and the bottom surface of the base 52, and its height dimension is very small. Although a concave first groove 521 for passing the first connecting tube 41 is provided on the top of the base 52, and its stress point is mainly on the top of the base 52, since the height of the base 52 itself is very small, its structure can be regarded as a fixed structure rather than a cantilever structure.

[0071] The curvature of the first groove 521 of the base 52 is the same or substantially the same as the curvature of the half outer wall of the first connecting tube 41 of the throttling element 4. The curvature of the second groove 531 of the pressing block 53 is the same or substantially the same as the curvature of the other half outer wall of the first connecting tube 41 of the throttling element 4. The first groove 521 and the second groove 531 are assembled to form a mounting hole 51 for penetrating the first connecting tube 41. The aperture of the mounting hole 51 is slightly larger than the aperture of the first connecting tube 41, for example, 1 mm to 3 mm larger, so as to take into account the requirements of making the first connecting tube 41 stably installed and easy to install.

[0072] Continue to see Figure 7 and Figure 8 In some embodiments, a first connecting hole 522 is further provided on the top of the base 52, such as a screw hole. The clamping block 53 is provided with a second connecting hole 532, such as a screw hole. The wall-mounted machine also includes a fastener 16, such as a bolt. The fastener 16 passes through the first connecting hole 522 and the second connecting hole 532 to detachably connect the base 52 and the clamping block 53. After the first connecting tube 41 is installed in place, the middle of the first connecting tube 41 will automatically be placed in the first groove 521 of the base 52. Then the clamping block 53 is fixedly connected to the base 52. The second groove 531 of the clamping block 53 is stuck in the outer wall of the first connecting tube 41, and the first groove 521 and the second groove 531 completely wrap the outer wall of the first connecting tube 41, so that the first connecting tube 41 is supported and fixed by the mounting base 5.

[0073] See also Figure 7 and Figure 8, in some embodiments, the number of the first connection holes 522 and the second connection holes 532 is two each. The first connection holes 522 and the second connection holes 532 are arranged in one-to-one correspondence. The first groove 521 is located between the two first connection holes 522, and the second groove 531 is located between the two second connection holes 532. Two groups of the first connection holes 522 and the second connection holes 532 are used to fix the base 52 and the fastener 16, so that both sides of the first connection pipe 41 are pressed tightly, and the first connection pipe 41 is not likely to fall off from the mounting hole 51, and the installation of the first connection pipe 41 is more stable.

[0074] Continue to refer to Figure 7 , in some embodiments, a counterbore 520 is provided in the middle of the base 52, and the counterbore 520 communicates with the first groove 521. The base 52 mainly uses the first groove 521 to install the first connection pipe 41. The area where the counterbore 520 is located does not play a role in installing and fixing the first connection pipe 41. Setting it to be empty is beneficial to reducing the weight of the back panel 12 and realizing the lightweight of the wall-mounted machine.

[0075] Refer to Figure 4 and Figure 9 , in some embodiments, the mounting seat 5 further includes a first buffer pad 54 and a second buffer pad 55, both of which can be rubber pads. For details, refer to Figure 4 . The first buffer pad 54 is arranged on the inner wall of the first groove 521; the second buffer pad 55 is arranged on the inner wall of the second groove 531. Among them, both the first buffer pad 54 and the second buffer pad 55 are clamped between the base 52 and the pressing block 53, and the first buffer pad 54 and the second buffer pad 55 jointly wrap the first connection pipe 41 of the throttling element 4. The first buffer pad 54 and the second buffer pad 55 are located between the first connection pipe 41 and the inner walls of the first groove 521 and the second groove 531. The hardness of the first buffer pad 54 is less than that of the base 52, and the hardness of the second buffer pad 55 is less than that of the pressing block 53. Optionally, the first buffer pad 54 and the second buffer pad 55 are made of ethylene propylene diene monomer (EPDM) or nitrile butadiene rubber, and the hardness is less than 40.

[0076] Anti-slip protrusions can be provided on the wall of the first buffer pad 54 facing the first groove 521 and the wall of the second buffer pad 55 facing the second groove 531, so as to reduce the possibility of the first buffer pad 54 and the second buffer pad 55 shifting and moving during operation, prevent the first buffer pad 54 and the second buffer pad 55 from coming off, and increase the reliability of the connection of the first connection pipe 41.

[0077] During the operation of the air conditioning system, the operation of the compressor and other moving parts will cause certain vibrations in the pipeline. Such vibrations may be transmitted through the first connecting pipe 41, causing noise and having an adverse impact on surrounding equipment. The first buffer pad 54 and the second buffer pad 55 can absorb and reduce vibrations, thereby reducing acoustic interference and mechanical fatigue. In addition, the first buffer pad 54 and the second buffer pad 55 can effectively reduce the noise generated inside the first connecting pipe 41, improve the comfort of the air conditioning system, increase the quietness of the usage environment, and contribute to achieving the quiet operation of the air conditioner. Moreover, the first buffer pad 54 and the second buffer pad 55 can also protect the first connecting pipe 41, provide physical isolation for the first connecting pipe 41, reduce friction, protect the outer wall of the first connecting pipe 41, and extend the service life of the first connecting pipe 41. Also, the first buffer pad 54 and the second buffer pad 55 have a certain heat insulation effect, which can reduce the influence of the external temperature on the first connecting pipe 41, keep the temperature of the refrigerant inside the first connecting pipe 41 stable, and optimize the working efficiency of the system. In a humid environment, the temperature of the outer wall of the first connecting pipe 41 may be lower than the dew point of the air humidity, which is likely to cause the formation of condensed water. The first buffer pad 54 and the second buffer pad 55 can, to a certain extent, reduce the generation of condensed water by providing an additional isolation layer, and reduce the risk of condensed water dripping onto the equipment or the surrounding environment, thereby protecting the equipment and improving the overall working environment.

[0078] Continue to refer to Figure 5 and Figure 6 , in some embodiments, the housing 1 further includes a partition 14, and the partition 14 is used to position the second connecting pipe 42 of the throttling element 4. The partition 14 can be a flat plate, the partition 14 is fixedly connected to or integral with the back plate 12, and an installation groove 13 is provided at the top of the partition 14. The installation groove 13 is an inwardly concave open groove, and the second connecting pipe 42 of the throttling element 4 is snapped into the installation groove 13 from the top of the installation groove 13. For an h-type electronic expansion valve, its straight pipe is the first connecting pipe 41, and the pipe with a bent section is the second connecting pipe 42. The surface of the partition 14 is parallel to the length direction of the first connecting pipe 41. The bent section of the second connecting pipe 42 is stuck in the installation groove 13 of the partition 14.

[0079] In the above technical solution, the mounting seat 5 plays a role in mounting and positioning the first connecting pipe 41, and the partition 14 plays a role in mounting and positioning the second connecting pipe 42. The cooperation of the mounting seat 5 and the partition 14 can not only play a role in mounting and positioning multiple positions of the throttling element 4, but also because the mounting seat 5 and the partition 14 fix different positions of the throttling element 4, the throttling element 4 fixed by the mounting seat 5 and the partition 14 is not likely to shake and is more secure.

[0080] Continue to refer to Figure 7, in some embodiments, the wall-mounted machine further includes a first support member 6, which is, for example, a rectangular block. The first support member 6 is located near the mounting base 5, and the first support member 6 is fixedly connected to or integral with the housing 1. The first support member 6 is configured to support the first connecting pipe 41 of the throttling element 4. The first support member 6 plays a supporting role for the first connecting pipe 41, so that in addition to the mounting base 5, the first connecting pipe 41 also has other supporting components, increasing the stability of the first connecting pipe 41.

[0081] In some embodiments, the first support member 6 is adjacent to the mounting base 5 or the gap between the first support member 6 and the mounting base 5 is less than a set value, which is, for example, 5 mm to 10 mm, specifically, for example, 5 mm, 7 mm, 8 mm, 10 mm. In some embodiments, taking the example that there is a gap between the first support frame and the mounting base 5. Along the length direction of the first connecting pipe 41, a first support member 6 is provided on each side of the mounting base 5. Of course, according to needs, more first support members 6 can also be provided.

[0082] In some embodiments, refer to Figure 3 , the wall-mounted machine further includes a sound insulation bag 9, and the sound insulation bag 9 is wrapped around the outside of the throttling element 4; the sound insulation bag 9 is configured to have a closable mouth. The material of the sound insulation bag 9 is relatively soft and is easily wrapped around the head of the throttling element 4. A drawstring is provided at the head of the sound insulation bag 9. After the heads of the two throttling elements 4 are inserted into the sound insulation bag 9, the drawstring is tightened so that the heads of the throttling elements 4 are located inside the sound insulation bag 9, thus achieving better sound insulation effect.

[0083] In some embodiments, the sound insulation bag 9 can be made of a variety of materials to effectively reduce noise transmission and vibration. The material of the sound insulation bag 9 is selected from one of the following: PET felt, polyester fiber, polyurethane foam, rubber, sound insulation cotton, aluminum foil, etc. Polyester fiber and sound insulation cotton are mainly used for acoustic absorption and can absorb sounds of specific frequencies; polyurethane foam provides excellent isolation effect and can effectively resist air-borne noise.

[0084] The sound insulation bag 9 adopts a double-layer or multi-layer structure. The double-layer design can provide a moderate sound insulation effect, while the multi-layer structure, usually three or four layers, can significantly improve the sound insulation effect and energy absorption capacity. The materials used in the multi-layer structure of the sound insulation bag 9 can be different. By combining different materials, it is possible to more specifically achieve better sound insulation performance for different frequencies and improve the overall noise reduction effect. The outer layer material of the sound insulation bag 9 can be selected as a waterproof material to improve its waterproof performance, so that the sound insulation bag 9 is not easily wetted during the operation of the unit. The sound-absorbing cotton material can be customized according to the noise characteristics of different frequency bands generated by different types of valve bodies. Specifically, double-layer sound-absorbing cotton can be selected to isolate noise in the medium and high frequency bands. The medium and high frequency bands refer to the frequency bands above 800 Hz.

[0085] Back toFigure 2 In some embodiments, the wall-mounted machine further includes an electrical box 10, which is installed inside the installation cavity; the throttling element 4 is located in the gap between the electrical box 10 and the heat exchanger 2. The electrical box 10 and the heat exchanger 2 are the two components with the largest internal dimensions of the wall-mounted machine. Pipes can be arranged at the gap between the two, and the extra space outside the arranged pipes can be used to arrange the throttling element 4. After the throttling element 4 is installed in place, there is a certain distance between the electrical box 10 and the throttling element 4, which also shows that with the arrangement method of the embodiment of the present utility model, the arrangement method of the components inside the wall-mounted machine is more reasonable.

[0086] See Figure 10 In the various embodiments introduced above, the wall-mounted machine may further include a pressing plate 15, and the pressing plate 15 can be made of a rubber plate or a plastic plate. The pressing plate 15 is detachably connected to the back plate 12, and the pressing plate 15 presses the first connecting pipe 41 and the second connecting pipe 42 of the throttling element 4. When installing the pipes of the air-conditioning unit, according to the needs of the actual installation scenario, the pipes may need to be bent. If the pressing plate 15 is not provided, during the process of bending the pipes, the first connecting pipe 41 and the second connecting pipe 42 of the throttling element 4 may be moved and bent accordingly, resulting in the throttling element 4 being jammed against the bottom case or the wall due to movement, causing noise problems. By providing the pressing plate 15, the positions of the first connecting pipe 41 and the second connecting pipe 42 can be fixed, and it is not easy to cause displacement and noise problems along with the subsequent connection of the pipes.

[0087] See Figure 11 and Figure 12 In some other embodiments, the wall-mounted machine further includes a clamp 7, which is fixedly connected to or integral with the housing 1. The clamp 7 is located on the back plate 12 of the housing 1 and protrudes towards the inside of the housing 1. The clamp 7 uses the deformation of the injection molding part to clamp the first connecting pipe 41, which is convenient for installation and disassembly without the need to set other components. When installing, the clamp 7 is used to fix the first connecting pipe 41, and the operation is also very convenient. Just push the first connecting pipe 41 into the clamp 7 directly.

[0088] In some embodiments, the wall-mounted machine further includes a second support member 8, and the second support member 8 can be a rectangular block. The second support member 8 is located near the clamp 7, and the second support member 8 is fixedly connected to or integral with the housing 1. The second support member 8 is configured to support the first connecting pipe 41 of the throttling element 4. The second support member 8 and the clamp 7 cooperate together to support more positions of the first connecting pipe 41.

[0089] See Figure 13 In some other embodiments, the installation position of the throttling element 4 is different from that of the above embodiments: the throttling element 4 is installed at the drain outlet of the housing 1.

[0090] The drainage outlet of the wall-mounted unit is relatively empty, and no other components are arranged in this area. The throttling element 4 can also be installed near the drainage outlet to make full use of the idle area at the drainage outlet.

[0091] The difference between the embodiment of the present utility model and the above-mentioned various embodiments lies in the different installation positions of the throttling element 4. As for the fixing method of the throttling element 4, the various embodiments introduced above can be adopted. The throttling element 4 can still be fixed by the mounting seat 5 or the clamp 7.

[0092] Install the throttling element 4 at the drainage outlet of the housing 1. This position is an idle position, and there is no need to move the positions of other components, nor will the throttling element 4 occupy the internal space of the housing 1. The above technical solution realizes the reasonable arrangement of the throttling element 4, without the need to increase the size of the housing 1 or reduce the size of the heat exchanger 2, taking into account the requirements of both miniaturization and heat exchange efficiency.

[0093] The embodiment of the present utility model also provides an air conditioner, including the wall-mounted unit provided by any technical solution of the present utility model.

[0094] For example, the air conditioner is a multi-connected air conditioner. During installation, the throttling element 4 is connected by a pipeline and placed at the outlet of the bottom shell inside the unit. The throttling element 4 adopts an electronic expansion valve, and the valve body of the electronic expansion valve and the coil are wrapped by a sound insulation bag 9. During installation, the unit is fixed to the wall through the wall-mounted plate 17 by bolts. The electronic expansion valve is arranged at the rear side inside the air conditioner unit. The valve body and its coil of the electronic expansion valve are separated from the wall by the sound insulation bag 9 to prevent the vibration of the valve body during operation from transmitting noise through the wall. After the unit is normally installed, the front panel 11 faces the customer, and the rear side inside the unit is close to the wall. After opening the front panel 11 on the front side of the unit, the electronic expansion valve is directly exposed. Therefore, when replacing the valve body coil during after-sales maintenance, only need to open the front panel 11 of the unit, so the coil can be directly replaced.

[0095] For the air conditioner provided by the above technical solution, since it has the wall-mounted unit introduced in the above embodiment, on the premise that the throttling element 4 is placed inside the housing 1 of the wall-mounted unit, the size of the wall-mounted unit can be very small, and the size of the heat exchanger 2 still adopts the original size, without the need to cut short or use a small-sized heat exchanger 2, the heat exchange capacity is guaranteed, the heat exchange efficiency of the air conditioner is high, the size is small and compact, and the refrigeration performance is good.

[0096] In some embodiments, the number of wall-mounted units is multiple.

[0097] Each wall-mounted unit of the air conditioner can adopt the solution provided by the above technical solution. Of course, the throttling element 4 can also be installed in one or several of the wall-mounted units in the above-introduced manner to improve the structure and performance of the air conditioner.

[0098] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protected content of the present utility model. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0099] In the description of the present utility model, where feasible, each technical feature can be combined with other technical features.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A wall-mounted machine, characterized in that, Comprising: A housing (1), including a front panel (11) and a back panel (12); the front panel (11) and the back panel (12) enclose an installation cavity; A heat exchanger (2), installed inside the installation cavity of the housing (1); A refrigerant pipeline (3), communicating with the heat exchanger (2), and the refrigerant pipeline (3) is located inside the housing (1); And A throttling element (4), communicating with the refrigerant pipeline (3); the throttling element (4) is located inside the installation cavity of the housing (1), and the distance between the throttling element (4) and the back panel (12) is less than the distance between the throttling element (4) and the front panel (11); alternatively, the throttling element (4) is installed at the drain outlet of the housing (1).

2. The wall-mounted machine according to claim 1, wherein It further comprises: A mounting seat (5), including a mounting hole (51); The mounting seat (5) is fixedly connected to or integral with the housing (1), the mounting seat (5) is fixed to the back panel (12) of the housing (1) and protrudes towards the inside of the housing (1); An installation groove (13) is provided inside the housing (1); the throttling element (4) includes a first connecting pipe (41) and a second connecting pipe (42); the first connecting pipe (41) is installed in the mounting hole (51), and the second connecting pipe (42) is installed in the installation groove (13).

3. The wall-mounted machine according to claim 2, characterized in that, The material of the mounting seat (5) is rubber or plastic, and the mounting seat (5) is integral with the back panel (12).

4. The wall-mounted machine according to claim 2, characterized in that The mounting seat (5) includes: A base (52), the bottom of which is fixedly connected to or integral with the housing (1), and a semi-circular first groove (521) is provided at the top of the base (52); and A pressing block (53), detachably and fixedly connected to the base (52); the pressing block (53) is provided with a second groove (531) that cooperates with the first groove (521); the first groove (521) and the second groove (531) cooperate to form the mounting hole (51), and the first connecting pipe (41) of the throttling element (4) passes through the mounting hole (51).

5. The wall-mounted machine according to claim 4, wherein A first connecting hole (522) is further provided at the top of the base (52), and a second connecting hole (532) is provided on the pressing block (53); the wall-mounted machine further includes a fastener (16), and the fastener (16) passes through the first connecting hole (522) and the second connecting hole (532) to detachably connect the base (52) and the pressing block (53).

6. The wall-mounted machine according to claim 5, wherein, The number of the first connecting hole (522) and the second connecting hole (532) is two each, the first connecting hole (522) and the second connecting hole (532) are arranged in one-to-one correspondence, the first groove (521) is located between the two first connecting holes (522), and the second groove (531) is located between the two second connecting holes (532).

7. The wall-mounted machine according to claim 4, wherein A sunken groove (520) is provided in the middle of the base (52), and the sunken groove (520) communicates with the first groove (521).

8. The wall-mounted machine according to claim 4, characterized in that, The mounting seat (5) further includes: A first buffer pad (54) is provided on the inner wall of the first groove (521); and A second buffer pad (55) is provided on the inner wall of the second groove (531); Wherein, both the first buffer pad (54) and the second buffer pad (55) are clamped between the base (52) and the pressing block (53), and the first buffer pad (54) and the second buffer pad (55) wrap the first connecting pipe (41) of the throttle element (4).

9. The wall-mounted machine according to claim 2, wherein The housing (1) further includes: A partition plate (14) is fixedly connected to or integral with the back plate (12). An installation groove (13) is provided at the top of the partition plate (14), and the second connecting pipe (42) of the throttle element (4) is snapped into the installation groove (13).

10. The wall-mounted machine according to claim 2, wherein, It further includes: A first support member (6) is located near the mounting seat (5), and the first support member (6) is fixedly connected to or integral with the housing (1). The first support member (6) is configured to support the first connecting pipe (41) of the throttle element (4).

11. The wall-mounted machine according to claim 10, characterized in that, The first support member (6) abuts against the mounting seat (5) or the gap between the first support member (6) and the mounting seat (5) is less than a set value.

12. The wall-mounted machine according to claim 11, wherein, The set value is 5 mm to 10 mm.

13. The wall-mounted machine according to claim 1, characterized in that, It further includes: A clamp (7) is fixedly connected to or integral with the housing (1). The clamp (7) is located on the back plate (12) of the housing (1) and protrudes towards the interior of the housing (1).

14. The wall-mounted machine according to claim 13, characterized in that, It further includes: A second support member (8) is located near the clamp (7), and the second support member (8) is fixedly connected to or integral with the housing (1). The second support member (8) is configured to support the first connecting pipe (41) of the throttle element (4).

15. The wall-mounted machine according to claim 1, characterized in that, It further includes: A sound insulation bag (9) wraps the outside of the throttle element (4); the sound insulation bag (9) is configured to have a closable mouth.

16. The wall-mounted machine according to claim 15, characterized in that, The material of the sound insulation bag (9) is selected from at least one of the following: PET felt, sound insulation cotton.

17. The wall-mounted machine according to claim 15, characterized in that, The wall of the sound insulation bag (9) includes at least two sound insulation layers.

18. The wall-mounted machine according to claim 1, characterized in that, It further includes: An electrical box (10) is installed inside the installation cavity; the throttle element (4) is located in the gap between the electrical box (10) and the heat exchanger (2).

19. The wall-mounted machine according to claim 1, characterized in that, It further includes: A pressing plate (15) is detachably connected to the back plate (12); the pressing plate (15) presses the first connecting pipe (41) and the second connecting pipe (42) of the throttle element (4).

20. An air conditioner, characterized in that, It includes a wall-mounted machine according to any one of claims 1 to 19.

21. The air conditioner according to claim 20, characterized in that, The number of the wall-mounted machines is multiple.

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