Indoor unit and air conditioner with same
By using refrigerant with different specific heat capacity and multiple rows of heat exchange pipes in the air conditioner, the problem of low air outlet temperature, dryness and high noise during cooling in summer is solved, and a gentle and constant temperature air delivery is achieved. The noise is reduced, improving user experience and heat exchange efficiency.
Patent Information
- Application Number
- CN202420017955.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-02
AI Technical Summary
When existing air conditioners are refrigerated in summer, the air outlet temperature is too low, causing discomfort, and the cold air is dry, the cooling speed is slow and the noise is high, which affects the user experience.
An indoor unit is designed, using heat exchange runners of the first and second refrigerants with different specific heat capacity, and heat exchange with the two refrigerants sequentially or in turn, combined with multiple rows of heat exchange pipe arrangements to increase the heat exchange area and Efficiency, reduce noise.
It realizes the delivery of soft, non-black, non-dry, and higher temperature-constant air, improves user experience, meets different needs, and reduces noise and improves heat exchange capabilities.
Smart Images
Figure CN222210555U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air conditioning, in particular to an indoor unit and an air conditioner having the indoor unit. Background Art
[0002] In the prior art, the heat exchange terminal of the fluorine air conditioner is mainly a duct unit, in which the heat exchange medium is Freon. In summer, the outlet temperature of the duct unit during cooling is generally between 7°C and 10°C, and the temperature of the delivered cold air is relatively low. When blowing on the human body, it will make the human body feel biting or even uncomfortable. At the same time, the cold air is relatively dry, and after a long period of cooling, it is easy to cause indoor air to dry out; the heat exchange terminal of the water air conditioner is mainly a fan coil unit, in which the heat exchange medium is water. In summer, the temperature standard of the air outlet of the fan coil unit during cooling is between 15°C and 18°C, and the temperature of the delivered cold air is moderate and not dry. When blowing on the human body, the human body feels more comfortable, but because the temperature difference between the temperature of the cold air and the indoor air temperature is small, the cooling is slower. At the same time, compared with the duct unit of the fluorine air conditioner, under the same cooling capacity, the fan coil unit of the water air conditioner has a larger air outlet, which causes the noise of the fan coil unit to be greater than that of the duct unit, affecting the user experience. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an indoor unit that can ensure comfortable and non-dry air flow and large cooling capacity while achieving a low noise effect.
[0004] According to the indoor unit of the embodiment of the utility model, it includes: a shell, a fan and a heat exchanger; the shell has an air inlet and an air outlet; the fan is installed in the shell and is located between the air inlet and the air outlet; the heat exchanger is installed on the air outlet side of the fan, and the heat exchanger has a first heat exchange channel and a second heat exchange channel, the transmission medium in the first heat exchange channel is a first refrigerant, and the transmission medium in the second heat exchange channel is a second refrigerant, and the first refrigerant is different from the second refrigerant.
[0005] According to the indoor unit of the embodiment of the utility model, a first heat exchange flow channel with a first refrigerant and a second heat exchange flow channel with a second refrigerant are provided, so that the air exchanges heat with the first refrigerant and the second refrigerant in sequence, or with the second refrigerant and the first refrigerant in sequence, so that the indoor unit can deliver soft, non-piercing, non-dry air with higher constant temperature and comfort, lower temperature and large cooling capacity, which can effectively improve the user experience and meet the different needs of the user. At the same time, the noise of the indoor unit is relatively small, which can effectively reduce the impact on the user.
[0006] In addition, the indoor unit according to the utility model may also have the following additional technical features:
[0007] In some embodiments, there are multiple heat exchange tubes, some of which are connected to form the first heat exchange channel, and another part of which are connected to form the second heat exchange channel.
[0008] In some embodiments, a plurality of the heat exchange tubes form a plurality of rows of the heat exchange tubes, and at least one row of the heat exchange tubes is formed with the first heat exchange channel.
[0009] In some embodiments, at least one row of the heat exchange tubes forming the first heat exchange channel is a first heat exchange tube row, and at least one row of the heat exchange tubes forming the second heat exchange channel is a second heat exchange tube row, wherein the first heat exchange tube row is located on the side of the second heat exchange tube row facing the fan, or the first heat exchange tube row is located on the side of the second heat exchange tube row away from the fan.
[0010] In some embodiments, there are multiple rows of the first heat exchange tube rows, and the multiple rows of the first heat exchange tube rows are interconnected. There are multiple rows of the second heat exchange tube rows, and the multiple rows of the second heat exchange tube rows are interconnected.
[0011] In some embodiments, the number of the first heat exchange tube rows is greater than the number of the second heat exchange tube rows.
[0012] In some embodiments, the first heat exchange channel has a first channel inlet and a first channel outlet, the second heat exchange channel has a second channel inlet and a second channel outlet, and the first channel inlet, the first channel outlet, the second channel inlet and the second channel outlet are all located on the same side of the heat exchanger.
[0013] In some embodiments, the first refrigerant is water, and the second refrigerant is any one of R290, R32, R454B and R410A.
[0014] The utility model also provides an air conditioner having the above embodiment;
[0015] According to the air conditioner of the embodiment of the utility model, the air conditioner also includes a compressor, an outdoor heat exchanger, a throttling device and a water-fluorine heat exchanger, the compressor, the outdoor heat exchanger, the throttling device, the water-fluorine heat exchanger and the heat exchanger are connected to form a refrigeration circuit, and the water-fluorine heat exchanger and the heat exchanger are connected in series or in parallel. By setting the indoor unit of the above embodiment, the heat exchange capacity of the air conditioner can be effectively improved, and the user experience can be improved.
[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1is a schematic structural diagram of an indoor unit (first perspective) according to an embodiment of the utility model;
[0018] Figure 2 is a structural schematic diagram of an indoor unit (second viewing angle) according to an embodiment of the utility model;
[0019] Figure 3 is a schematic diagram of a flow path (first arrangement form) of a heat exchanger of an indoor unit according to an embodiment of the utility model;
[0020] Figure 4 It is a schematic diagram of the flow path (second arrangement form) of the heat exchanger of the indoor unit according to an embodiment of the utility model.
[0021] Reference numerals:
[0022] 100. Indoor unit;
[0023] 1. Shell; 2. Fan;
[0024] 3. Heat exchanger; 31. First heat exchange channel; 32. Second heat exchange channel; 33. Heat exchange tube; 311. First channel inlet; 312. First channel outlet; 321. Second channel inlet; 322. Second channel outlet. DETAILED DESCRIPTION
[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] Reference below Figure 1-Figure 4 The indoor unit 100 according to the embodiment of the present invention is described.
[0030] like Figures 1 to 4 As shown, the indoor unit 100 according to the embodiment of the utility model includes: a shell 1, a fan 2 and a heat exchanger 3; the shell 1 has an air inlet and an air outlet; the fan 2 is installed in the shell 1 and is located between the air inlet and the air outlet; the heat exchanger 3 is installed on the air outlet side of the fan 2, and the heat exchanger 3 has a first heat exchange channel 31 and a second heat exchange channel 32. The transmission medium in the first heat exchange channel 31 is a first refrigerant, and the transmission medium in the second heat exchange channel 32 is a second refrigerant. The first refrigerant is different from the second refrigerant, and the specific heat capacity of the first refrigerant in the first heat exchange channel 31 is greater than the specific heat capacity of the second refrigerant in the second heat exchange channel 32.
[0031] In this embodiment, the fan 2 is used to blow the air sent from the air inlet to the heat exchanger 3, so that the air undergoes heat exchange at the heat exchanger 3, and is sent into the room from the air outlet after the heat exchange is completed.
[0032] When the air undergoes heat exchange in the first heat exchange channel 31, since the specific heat capacity of the first refrigerant in the first heat exchange channel 31 is relatively high, the temperature of the first refrigerant is easier to control and adjust when exchanging heat with the air, and the temperature difference during the heat exchange process is smaller, thereby making the wind softer, less biting, less dry, more constant in temperature and more comfortable.
[0033] When the air is heat exchanged in the second heat exchange channel 32, since the second refrigerant in the second heat exchange channel 32 has a low specific heat capacity and a high heat exchange efficiency, the first refrigerant can quickly take away the heat in the air when exchanging heat with the air, so that the temperature of the air is quickly reduced, so that the temperature of the air delivered from the outlet is lower, and the indoor temperature can be quickly reduced. At the same time, due to the low temperature of the air, less air volume is required under the same cooling capacity. Therefore, the indoor unit 100 does not need to deliver too much air volume, which makes the noise of the indoor unit 100 smaller, thereby improving the user experience.
[0034] In some embodiments, the first refrigerant is water, and the second refrigerant is any one of R290, R32, R454B and R410A.
[0035] According to the indoor unit 100 in the above embodiment, the following heat exchange method can be obtained. The fan 2 blows the air flowing into the air inlet to the heat exchanger 3. The air flows through the first heat exchange channel 31 and the second heat exchange channel 32 in sequence at the heat exchanger 3, or flows through the second heat exchange channel 32 or the first heat exchange channel 31 in sequence. In this way, the air after heat exchange is not only of lower temperature, which can quickly reduce the indoor temperature, but also has the characteristics of being soft, not biting, not dry, constant temperature and more comfortable, which can better meet the needs of different groups of users and improve the user experience. At the same time, since the air temperature is relatively low, a large cooling capacity requirement can be met without a large air volume. Therefore, the indoor unit 100 has low noise and little impact on users.
[0036] Furthermore, the first heat exchange channel 31 and the second heat exchange channel 32 can also work independently to meet the different needs of users. When the user does not need rapid indoor cooling and requires soft and comfortable air outlet, the first heat exchange channel 31 works and the second heat exchange channel 32 stops working. In this way, the air can be delivered into the room from the air outlet after the heat exchange with the first refrigerant is completed at the first heat exchange channel 31; when the user needs rapid indoor cooling, the first heat exchange channel 31 stops working and the second heat exchange channel 32 works. In this way, the air can be delivered into the room from the air outlet after the heat exchange with the second refrigerant is completed at the second heat exchange channel 32, thereby rapidly cooling the room.
[0037] According to the indoor unit 100 of the embodiment of the utility model, by providing a first heat exchange channel 31 with a first refrigerant and a second heat exchange channel 32 with a second refrigerant, the air is heat exchanged with the first refrigerant and the second refrigerant in sequence, or with the second refrigerant and the first refrigerant in sequence, so that the indoor unit 100 can deliver soft, non-piercing, non-dry air with higher constant temperature and comfort, lower temperature and large cooling capacity, which can effectively improve the user experience and meet the different needs of the user. At the same time, the noise of the indoor unit 100 is relatively small, which can effectively reduce the impact on the user.
[0038] In one embodiment of the present invention, Figures 1 to 4 As shown, the heat exchanger 3 includes a plurality of heat exchange tubes 33, some of which are connected to form a first heat exchange channel 31, and another portion of the heat exchange tubes 33 are connected to form a second heat exchange channel 32. Figure 3 and Figure 4 As shown, three rows of heat exchange tubes 33 are arranged in the heat exchanger 3, and each row is provided with 10 heat exchange tubes 33. Such an arrangement requires the air to pass through the three rows of heat exchange tubes 33 in sequence to complete the heat exchange, which effectively increases the contact area between the heat exchange tubes 33 and the air, thereby increasing the heat exchange area and being able to better regulate the air temperature.
[0039] In a specific embodiment of the present invention, Figures 1 to 4 As shown, a plurality of heat exchange tubes 33 form a plurality of rows of heat exchange tubes 33, and a first heat exchange channel 31 is formed in at least one row of heat exchange tubes 33. Figure 3 and Figure 4 As shown, among the three rows of heat exchange tubes 33, two rows of heat exchange tubes 33 form the first heat exchange channel 31, and one row of heat exchange tubes 33 forms the second heat exchange channel 32. Such a partition design can ensure that the first heat exchange channel 31 and the second heat exchange channel 32 do not affect each other, thereby ensuring that the first heat exchange channel 31 and the second heat exchange channel 32 can ensure their respective heat exchange capacities, so that the air flowing through the first heat exchange channel 31 and the second heat exchange channel 32 can effectively exchange heat.
[0040] In a specific embodiment of the present invention, Figures 1 to 4 As shown, at least one row of heat exchange tubes 33 forming a first heat exchange channel 31 is a first heat exchange tube row, and at least one row of heat exchange tubes 33 forming a second heat exchange channel 32 is a second heat exchange tube row, wherein the first heat exchange tube row is located on the side of the second heat exchange tube row facing the fan 2, or the first heat exchange tube row is located on the side of the second heat exchange tube row away from the fan 2.
[0041] In this specific embodiment, during cooling, the relative position between the first heat exchange tube row and the second heat exchange tube row can be adjusted according to actual needs. When the first heat exchange tube row is located on the side of the second heat exchange tube row facing the fan 2, the air blown out from the fan 2 will first pass through the first heat exchange tube row, and then pass through the second heat exchange tube row. In this way, the air will first exchange heat with the first refrigerant to become soft, non-biting, non-dry, constant temperature and more comfortable air. Secondly, it will exchange heat with the second refrigerant to become air with a lower temperature, and finally be delivered into the room through the air outlet. During this heat exchange process, since the temperature of the air is reduced successively, the air is effectively exchanging heat, and the heat exchange efficiency of the heat exchanger 3 is relatively high at this time.
[0042] Furthermore, when the first heat exchange tube row is located on the side of the second heat exchange tube row away from the fan 2, the air blown out from the fan 2 will first pass through the second heat exchange tube row, and then pass through the first heat exchange tube row. In this way, the air will first exchange heat with the second refrigerant to become air with a lower temperature, and then exchange heat with the first refrigerant to become soft, non-biting, non-dry, constant temperature and more comfortable air, and finally be delivered to the room through the air outlet. In this heat exchange process, since the second refrigerant has a small specific heat capacity and a higher heat exchange efficiency, the air temperature drops to the minimum after the heat exchange with the second refrigerant is completed; since the first refrigerant has a large specific heat capacity and a low heat exchange efficiency, when the air reaching the lowest temperature exchanges heat with the first refrigerant, the first refrigerant will heat the air, thereby causing the air to heat up. Such an arrangement can make the temperature of the air delivered to the room higher than the temperature of the air in the first arrangement form mentioned above, thereby making the air delivered to the room softer, more moist and more comfortable.
[0043] In a specific embodiment of the present invention, Figures 1 to 4 As shown, there are multiple rows of first heat exchange tubes, and the multiple rows of first heat exchange tubes are interconnected. There are multiple rows of second heat exchange tubes, and the multiple rows of second heat exchange tubes are interconnected. Figure 3 and Figure 4 As shown, among the three rows of heat exchange tubes 33, the two rows of heat exchange tubes 33 of the first heat exchange tube row are interconnected, so that the length of the first heat exchange channel 31 can be increased, thereby increasing the heat exchange area of the first heat exchange channel 31, thereby effectively improving the heat exchange efficiency.
[0044] In a specific embodiment of the present invention, Figures 1 to 4 As shown, the number of the first heat exchange tube rows is greater than the number of the second heat exchange tube rows. Figure 3 and Figure 4 As shown, among the three rows of heat exchange tubes 33, two rows of heat exchange tubes 33 form a first heat exchange channel 31, and one row of heat exchange tubes 33 forms a second heat exchange channel 32. Since the first refrigerant in the first heat exchange channel 31 has a high specific heat capacity and a slow heat exchange rate, it is necessary to allocate more heat tubes to arrange the first heat exchange channel 31 to ensure that the air can effectively exchange heat in the first heat exchange channel 31.
[0045] In one embodiment of the present invention, Figures 1 to 4 As shown, the first heat exchange channel 31 has a first channel inlet 311 and a first channel outlet 312, the second heat exchange channel 32 has a second channel inlet 321 and a second channel outlet 322, the first channel inlet 311, the first channel outlet 312, the second channel inlet 321 and the second channel outlet 322 are all located on the same side of the heat exchanger 3, such an arrangement can save arrangement space, make assembly more convenient, and improve assembly efficiency; for example Figure 2As shown, on the same side of the heat exchanger 3, in the first direction, the first flow channel inlet 311 and the first flow channel outlet 312 are arranged side by side with the second flow channel inlet 321 and the second flow channel outlet 322. This can facilitate assemblers to quickly identify the first heat exchange flow channel 31 and the second heat exchange flow channel 32, and can effectively prevent the occurrence of wrong installation of pipelines.
[0046] In one embodiment of the present invention, Figures 1 to 4 As shown, the heat exchanger 3 is a fin-tube heat exchanger, which has a higher heat exchange efficiency and can quickly heat up or cool down the air. At the same time, the fin-tube heat exchanger is lighter in weight, meeting the requirements of lightweight design.
[0047] The utility model also provides an air conditioner having the above embodiment.
[0048] The air conditioner according to the embodiment of the utility model includes: a compressor, an outdoor heat exchanger, a throttling device and a water-fluorine heat exchanger, the compressor, the outdoor heat exchanger, the throttling device, the water-fluorine heat exchanger and the heat exchanger 3 are connected to form a refrigeration circuit, and the water-fluorine heat exchanger and the heat exchanger 3 are connected in series or in parallel. By setting the indoor unit 100 of the above embodiment, the heat exchange capacity of the air conditioner can be effectively improved, and the user experience can be improved.
[0049] Other structures and operations of the indoor unit 100 and the air conditioner according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.
[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0051] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. An indoor unit, characterized in that: include: A housing having an air inlet and an air outlet; A fan, the fan is installed in the housing and located between the air inlet and the air outlet; Heat Exchanger The heat exchanger is installed on the air outlet side of the fan, and the heat exchanger has a first heat exchange channel and a second heat exchange channel. The transmission medium in the first heat exchange channel is a first refrigerant, and the transmission medium in the second heat exchange channel is a second refrigerant. The first refrigerant is different from the second refrigerant.
2. The indoor unit according to claim 1, characterized in that: The heat exchanger includes a plurality of heat exchange tubes, some of which are connected to form the first heat exchange channel, and another part of which are connected to form the second heat exchange channel.
3. The indoor unit according to claim 2, characterized in that: The plurality of heat exchange tubes form a plurality of rows of heat exchange tubes, and at least one row of heat exchange tubes is formed with the first heat exchange flow channel.
4. The indoor unit according to claim 3, characterized in that: At least one row of the heat exchange tubes formed with the first heat exchange flow channel is a first heat exchange tube row, and at least one row of the heat exchange tubes formed with the second heat exchange flow channel is a second heat exchange tube row, wherein, The first heat exchange tube row is located on the side of the second heat exchange tube row facing the fan, or, The first heat exchange tube row is located on a side of the second heat exchange tube row away from the fan.
5. The indoor unit according to claim 4, characterized in that: There are multiple rows of the first heat exchange tube rows, and the multiple rows of the first heat exchange tube rows are interconnected. There are multiple rows of the second heat exchange tube rows, and the multiple rows of the second heat exchange tube rows are interconnected.
6. The indoor unit according to claim 5, characterized in that: The number of the first heat exchange tube rows is greater than the number of the second heat exchange tube rows.
7. The indoor unit according to claim 1, characterized in that: The first heat exchange channel has a first channel inlet and a first channel outlet, the second heat exchange channel has a second channel inlet and a second channel outlet, and the first channel inlet, the first channel outlet, the second channel inlet and the second channel outlet are all located on the same side of the heat exchanger.
8. The indoor unit according to any one of claims 1 to 7, characterized in that: The first refrigerant is water, and the second refrigerant is any one of R290, R32, R454B and R410A.
9. An air conditioner, characterized in that: The indoor unit comprises the indoor unit described in any one of claims 1 to 8.
10. The air conditioner according to claim 9, characterized in that: The air conditioner also includes a compressor, an outdoor heat exchanger, a throttling device and a water-fluorine heat exchanger. The compressor, the outdoor heat exchanger, the throttling device, the water-fluorine heat exchanger and the heat exchanger are connected to form a refrigeration circuit. The water-fluorine heat exchanger and the heat exchanger are connected in series or in parallel.