Heat exchange device and air source heat pump system with same

Abstract

The application provides a heat exchange device and an air source heat pump system with the same, relates to a heating device technical field, and through the design of the heat exchange device, the flow guide air duct can generate slit airflow, which plays a role of flow guiding on heat exchange airflow which needs to pass through the heat exchange device heat exchange main body, and the heat exchange airflow obtained after flow guiding is mixed with slit airflow and / or room temperature air, and then is blown out through the air outlet of the heat exchange device. The airflow is enlarged through blowing, soft air outlet is realized, the problem that the air outlet temperature is high in the prior art and dry heat feeling is easily generated is solved, the device is matched with the function of the electric auxiliary heating device, the uniform air outlet effect is realized, the heating mode of mainly radiating heating supplemented by air forced convection is realized, noise is greatly reduced, the device is narrow, the air outlet is closer to the ground, heating is more comfortable, and the appearance is small and beautiful.

Description

Technical Field

[0001] This invention relates to the field of heating equipment technology, and more particularly to a heat exchange device and an air source heat pump system having the same. Background Technology

[0002] When atmospheric air quality deteriorates, pollutants such as particulate matter can seep into indoor spaces through gaps in doors and windows or through natural ventilation, leading to a decline in indoor air quality. This is especially true in northern regions where heating is required in winter, where the deterioration of indoor air quality is even more severe. Therefore, creating a comfortable indoor environment during winter is of great importance for living, working, and studying.

[0003] Existing air source heat pump hot air blowers can effectively solve the heating problem in cold northern regions, replacing coal-fired heating and achieving clean heating. However, existing hot air blowers have the problem of high outlet air temperature, which can easily generate a feeling of dryness and heat, greatly reducing the user experience.

[0004] Therefore, a new technical solution is provided to address the technical problem of existing air source heat pump hot air blowers easily generating a feeling of dryness and heat. Summary of the Invention

[0005] In view of this, the present invention provides a heat exchange device and an air source heat pump system having the same. By designing the heat exchange device and using airflow amplification technology, a gentle airflow is achieved, which solves the problem of high airflow temperature and the tendency to generate a feeling of dryness in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a heat exchange device, comprising a shell, an air inlet and an air outlet disposed on the shell, and a heat exchange body disposed between the air inlet and the air outlet of the shell, which forms a first flow path from the air inlet to the air outlet, the first flow path flowing through the heat exchange body to form a heat exchange airflow.

[0007] A flow channel that does not pass through the heat exchanger body is formed between the heat exchanger body and the inner wall of the shell. The flow channel forms a second flow path from the air inlet to the air outlet. A slit outlet is provided at the end of the second flow path. The second flow path forms a slit airflow at the slit outlet. The wind speed of the slit airflow is greater than the wind speed of the heat exchange airflow.

[0008] The end of the second flow path is located on the same side of the housing as the end of the first flow path.

[0009] Alternatively, the cross-sectional width of the airflow duct gradually decreases along the airflow outflow direction.

[0010] Optionally, a mixing air cavity is formed on one side of the housing, which is located at the end of the first flow path and the second flow path. The heat exchange airflow formed in the first flow path and the slit airflow formed in the second flow path are mixed in the mixing air cavity and then sent out of the housing through the air outlet. A flow splitting mechanism is formed on the other side of the housing, which is located at the beginning of the first flow path and the second flow path to send the air flowing in from the air inlet into the first flow path and the second flow path respectively. An accelerating fan is provided between the outlet of the flow splitting mechanism and the inlet of the second flow path.

[0011] Further optionally, the air outlet includes a first air outlet and a second air outlet, which are disposed on the same side of the housing. The first air outlet is used to deliver the heat exchange airflow of the first flow path, and the second air outlet is used to deliver the slit airflow of the second flow path. The slit airflow is inclined at an angle θ toward the heat exchange airflow delivered from the first air outlet, where 0° < θ < 90°.

[0012] Further optionally, the air inlet includes a first air inlet and a second air inlet, wherein the first air inlet provides air intake for the first flow path, the second air inlet provides air intake for the second flow path, and the first air inlet and the second air inlet are disposed on different sides of the housing.

[0013] Further optionally, the heat exchange body and the inner wall surfaces on different sides of the shell form multiple air ducts, and a flow splitting mechanism is formed in the shell near the second air inlet. The flow splitting mechanism distributes the air entering from the second air inlet into each of the air ducts, and a mixing fan is provided between the flow splitting mechanism and the second air inlet.

[0014] Further optionally, the housing includes a first housing and a second housing, the first housing accommodating the heat exchange body and forming the airflow duct, the second housing providing the flow splitting mechanism and the mixing fan, and the first housing and the second housing being detachably connected together.

[0015] Alternatively, the airflow duct is formed in the inner wall of the housing.

[0016] Further optionally, the air duct is a slit duct formed by the inner wall surface of the shell and the top, bottom, or side surface of the heat exchange body and the inner wall of the shell.

[0017] Further optionally, the heat exchange device is a narrow-type heat dissipation device:

[0018] The second flow path includes second flow path A and second flow path B.

[0019] An upper airflow duct is formed between the upper top surface of the heat exchanger body and the upper inner wall surface of the shell, and a lower airflow duct is formed between the lower top surface of the heat exchanger body and the lower inner wall surface of the shell; wherein the upper airflow duct forms the second flow path A, and the lower airflow duct forms the second flow path B;

[0020] The air inlet includes a first air inlet and a second air inlet; the air outlet includes a first air outlet and a second air outlet; wherein the first air inlet is for air intake through the first flow path, and the first air outlet is for air supply through the first flow path; the second air inlet is for air intake through the second flow path, and the second air outlet is for air supply through the second flow path; the first air inlet is located on the rear sidewall in the width direction of the housing, and the first air outlet is located on the front sidewall in the width direction of the housing; the second air outlet is located on the same side as the first air outlet;

[0021] The second air outlet includes a second air outlet A and a second air outlet B. The second air inlet is located at one end of the length direction of the housing to provide air intake for the second flow path A and the second flow path B. The second air outlet A is used to supply air to the second flow path A. The second air outlet B is used to supply air to the second flow path B. A mixed-flow fan is provided at the second air inlet. A flow-dividing mechanism is provided on the air outlet side of the mixed-flow fan to supply the air output of the mixed-flow fan to the second flow path A and the second flow path B.

[0022] Further optionally, the heat exchange device is a narrow-type heat dissipation device:

[0023] The second flow path includes second flow path A and second flow path B.

[0024] An upper airflow duct is formed between the upper top surface of the heat exchanger body and the upper inner wall surface of the shell, and a lower airflow duct is formed between the lower top surface of the heat exchanger body and the lower inner wall surface of the shell; wherein the upper airflow duct forms the second flow path A, and the lower airflow duct forms the second flow path B;

[0025] The air inlet includes a first air inlet and a second air inlet; the air outlet includes a first air outlet and a second air outlet; wherein the first air inlet is for air intake through the first flow path, and the first air outlet is for air supply through the first flow path; the second air inlet is for air intake through the second flow path, and the second air outlet is for air supply through the second flow path; the first air inlet is disposed on the rear sidewall in the width direction of the housing, and the first air outlet and the second air outlet are disposed on the front sidewall in the width direction of the housing;

[0026] The second air outlet includes a second air outlet A and a second air outlet B, and the second air inlet includes a second air inlet A and a second air inlet B. The second air inlet A is located at one end of the length direction of the housing to provide airflow into the second flow path A, and the second air inlet B is located at the other end of the length direction of the housing to provide airflow into the second flow path B. The second air outlet A is used to supply airflow into the second flow path A; the second air outlet B is used to supply airflow into the second flow path B.

[0027] A mixed-flow fan A is installed between the second air inlet A and the upper air duct to provide air supply power for the second flow path A; a mixed-flow fan B is installed between the second air inlet B and the lower air duct to provide air supply power for the second flow path B.

[0028] Alternatively, the heat exchange body is provided with two parallel heat exchange units, which are arranged side by side along the height direction of the shell.

[0029] Further optionally, the heat exchange device is a narrow-type heat dissipation device:

[0030] The second flow path includes second flow path A1, second flow path A2, second flow path B1, and second flow path B2;

[0031] An upper airflow duct A1 and an upper airflow duct A2 are formed side-by-side between the upper top surface of the heat exchanger body and the upper inner wall surface of the shell along the length of the shell. A lower airflow duct B1 and a lower airflow duct B2 are formed side-by-side between the lower top surface of the heat exchanger body and the lower inner wall surface of the shell along the length of the shell. The upper airflow duct A1 forms the second flow path A1, the upper airflow duct A2 forms the second flow path A2, the lower airflow duct B1 forms the second flow path B1, and the lower airflow duct B2 forms the second flow path B2.

[0032] The air inlet includes a first air inlet and a second air inlet; the air outlet includes a first air outlet and a second air outlet; wherein the first air inlet is for air intake through the first flow path, and the first air outlet is for air supply through the first flow path; the second air inlet is for air intake through the second flow path, and the second air outlet is for air supply through the second flow path; the first air inlet is disposed on the rear sidewall in the width direction of the housing, and the first air outlet and the second air outlet are disposed on the front sidewall in the width direction of the housing;

[0033] The second air outlet includes a second air outlet A and a second air outlet B, and the second air inlet includes a second air inlet A and a second air inlet B. The second air inlet A is located at one end of the length direction of the housing to provide air intake for the second flow path A1 and the second flow path B1, and the second air inlet B is located at the other end of the length direction of the housing to provide air intake for the second flow path A2 and the second flow path B2. The second air outlet A1 is used to supply air to the second flow path A1; the second air outlet A2 is used to supply air to the second flow path A2; the second air outlet B1 is used to supply air to the second flow path B1; and the second air outlet B2 is used to supply air to the second flow path B2.

[0034] A first flow splitting mechanism and a first mixed-flow fan are provided at the second air inlet A to supply air to the second flow path A1 and the second flow path B1 and provide acceleration power. A second flow splitting mechanism and a second mixed-flow fan are provided at the second air inlet B to supply air to the second flow path A2 and the second flow path B2 and provide acceleration power.

[0035] Alternatively, the heat exchange body is provided with two parallel heat exchange units, which are arranged side by side along the length of the shell.

[0036] Further optionally, the heat exchange device further includes an electric auxiliary heating device, which is disposed in the second flow path for heating the fluid in the second flow path.

[0037] Alternatively, the heat exchange device may further include a base that supports the housing on the ground.

[0038] Alternatively, the heat exchange device may be a skirting board type heat exchange device.

[0039] The present invention also provides an air source heat pump system, wherein the indoor unit terminal adopts the heat exchange device described in any of the above claims.

[0040] This invention provides a heat exchange device, and through the design of this heat exchange device, the following advantages are achieved:

[0041] Beneficial effects:

[0042] 1. The narrow airflow generated by the design of the air duct guides and enhances the heat exchange airflow that needs to pass through the heat exchanger body. At the same time, the heat exchange airflow obtained after guidance is mixed with the narrow airflow and / or room temperature air, and the final blown airflow is amplified to achieve gentle airflow, which solves the problem of high outlet air temperature and easy to generate a feeling of dryness in the existing technology.

[0043] 2. Equipped with an electric auxiliary heating device, it achieves uniform air distribution and realizes a heating method that mainly uses radiant heating supplemented by forced air convection, which greatly reduces noise.

[0044] 3. The device is narrow, which allows the air outlet to be closer to the ground, making heating more comfortable, and it is also compact and beautiful in appearance. Attached Figure Description

[0045] The above and other objects, features, and advantages of the present invention will become more apparent from the detailed description of exemplary embodiments with reference to the accompanying drawings. The drawings described below are merely some embodiments disclosed in the present invention; those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0046] Figure 1 This is a top view of a heat exchange device according to an embodiment of the present invention;

[0047] Figure 2 This is a front view of a heat exchange device according to an embodiment of the present invention;

[0048] Figure 3 AA is a front view section of the heat exchange device in one embodiment of the present invention;

[0049] Figure 4 This is a front view of a heat exchange device according to an embodiment of the present invention;

[0050] Figure 5 This is an air source heat pump system according to one embodiment of the present invention;

[0051] Figure 6 This is a top view of a heat exchange device according to an embodiment of the present invention;

[0052] Figure 7 This is a front view of a heat exchange device according to an embodiment of the present invention;

[0053] Figure 8 This is an air source heat pump system according to one embodiment of the present invention;

[0054] Figure 9 This is a front view of a heat exchange device according to an embodiment of the present invention;

[0055] Figure 10 This is an air source heat pump system according to one embodiment of the present invention.

[0056] In the picture:

[0057] 1-Heat exchanger; 11-Shell; 111-First shell; 112-Second shell; 12-Heat exchanger body; 13-Base; 14-Electric auxiliary heating device; 150-Mixed flow fan; 151-Mixed flow fan A; 152-Mixed flow fan B; 153-First mixed flow fan; 154-Second mixed flow fan; 160-Drainage duct; 161-Upper drainage duct; 162-Lower drainage duct; 163-Upper drainage duct A1; 164-Lower drainage duct B1; 165-Upper drainage duct A2; 166-Lower drainage duct B2; 17-Slit airflow; 18-Drainage airflow; 2-Outdoor unit heat exchanger; 3-Flow regulating device; 4-Compressor; 5-Four-way valve Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0060] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0061] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0062] Example 1

[0063] like Figure 1As shown, the present invention provides a heat exchange device 1, which includes: a housing 11 having an air inlet and an air outlet; a heat exchange body 12 disposed between the air inlet and the air outlet of the housing 11; the heat exchange body 12 forming a first flow path from the air inlet to the air outlet; the first flow path passing through the heat exchange body 12 to form a heat exchange airflow; wherein, a guide air duct 160 not passing through the heat exchange body 12 is formed between the heat exchange body 12 and the inner wall surface of the housing 11; the guide air duct 160 forming a second flow path from the air inlet to the air outlet; the end of the second flow path having a slit outlet; the second flow path forming a slit airflow 17 at the slit outlet; the wind speed of the slit airflow 17 being greater than the wind speed of the heat exchange airflow; the end of the second flow path and the end of the first flow path being located on the same side of the housing 11.

[0064] In this embodiment, the heat exchange device 1 incorporates a diversion duct 160 and a slit airflow 17. Due to the high velocity of the slit airflow 17, the airflow velocity at the outlet side is increased, and the air pressure is reduced. As a result, the local air at the air inlet of the casing 11 will actively form a first flow path under the action of pressure difference, passing through the heat exchange body 12 to form a heat exchange airflow. The heat exchange airflow mixes with the slit airflow 17, which on the one hand achieves the effect of airflow amplification, and on the other hand makes the airflow temperature more gentle and less likely to generate a dry feeling.

[0065] Regarding the specific structure of the airflow duct 160, it can be formed above the heat exchange body 12 using either the inner wall of the shell 11 or a baffle plate, isolating it from the heat exchange body 12. Alternatively, it can be achieved by forming a duct gap between the shell 11 and the heat exchange body 12. Preferably, the airflow duct 160 is formed in the inner wall of the shell 11. In one method, the second flow path is isolated from the heat exchange body 12; in another method, the second flow path passes over the surface of the heat exchange body 12. Regardless of the method, the heat exchange of the second flow path is weaker than that of the first flow path, which will facilitate mixing with the first flow path and temperature adjustment, and also prevent the blown air from becoming too hot. Preferably, the ventilation cross-section of the airflow duct 160 gradually decreases in width along the airflow direction until a slit outlet is formed at the end. Specifically, the slit outlet is formed before the air outlet to blow the air directly towards the air outlet, but more preferably, it is formed directly by part of the air outlet area. Furthermore, the air duct 160 may not be limited to one; it may be located between the inner wall of the shell 11 and the top surface of the heat exchange body 12, or between the bottom surface of the heat exchange body 12 and the bottom surface of the shell 11, or between the side of the heat exchanger and the side wall of the shell 11. These can be optimized in combination with the installation method and application of the heat exchange device 1.

[0066] Regarding the mixing scheme of the slit airflow 17 and the heat exchange airflow, optionally, a mixing chamber is formed on one side of the shell 11, located at the end of the first flow path and the second flow path. The heat exchange airflow formed in the first flow path and the slit airflow 17 formed in the second flow path are mixed in the mixing chamber and then sent out of the shell 11 through the air outlet. A flow splitting mechanism is formed on the other side of the shell 11, located at the beginning of the first flow path and the second flow path, to send the air flowing in from the air inlet into the first flow path and the second flow path respectively. An accelerating fan is provided between the outlet of the flow splitting mechanism and the inlet of the second flow path. The advantage of this is that the cold and hot air are mixed before being blown out, and the blown out air is directly a mixed airflow. Even if a person is very close to the air outlet, there will be no feeling of uneven temperature. When the mixed airflow blows onto a person, compared with the technical solution of directly blowing the airflow after heat exchange with the heat exchanger onto the person in the traditional hot air blower, this solution effectively reduces the dryness of the airflow and improves the user experience. However, the disadvantage of this is that it increases the size of the heat exchanger to a certain extent. Alternatively, the first and second flow paths can be respectively discharged outside the housing 11, and the two flow paths can be mixed before reaching a predetermined distance outside the housing 11. This implementation method is described below:

[0067] like Figure 2 and Figure 3 As shown, in order to improve the guiding effect of the slit airflow 17 and its mixing effect with the heat exchange airflow, in this embodiment, the air outlet preferably includes a first air outlet and a second air outlet. The first air outlet and the second air outlet are located on the same side of the housing 11. The first air outlet is used to send out the heat exchange airflow of the first flow path, and the second air outlet is used to send out the slit airflow 17 of the second flow path. The slit airflow (17) is tilted at an angle θ towards the heat exchange airflow sent out from the first air outlet, where 0° < θ < 90°. This angle design increases the guiding effect of the slit airflow 17, so that after the slit airflow 17 is blown out, a guiding airflow 18 is generated in the direction of the first air inlet and the first air outlet. The heat exchange airflow is generated through the heat exchange body 12, and at the same time, the heat exchange airflow and the slit airflow 17 are mixed within a preset range to achieve a better gentle airflow effect. Specifically, the way to achieve the airflow in the slit blowing towards the heat exchange airflow at an angle of θ can be by designing the outlet of the slit airflow so that the outlet itself is tilted at an angle of θ towards the direction of the heat exchange airflow; or by setting an air guide structure at the outlet of the slit airflow to guide the slit airflow to the heat exchange airflow so that the airflow directions of the two form an angle of θ.

[0068] Compared to the traditional hot air blower with its small, concentrated air outlet, this method allows for a wider airflow range from the heat exchange device 1, resulting in a more dispersed distribution of heat. Compared to the traditional hot air blower where the airflow after heat exchange with the heat exchanger is directly blown into the user, this method effectively reduces the feeling of heat and improves the user experience.

[0069] Preferably, the air outlet in this heat exchange device 1 can be composed of a large grille, which forms a first flow path air outlet area and a second flow path air outlet area. The first flow path air outlet area serves as the air outlet for the first flow path, and the second flow path air outlet area serves as the air outlet for the second flow path. The slit air outlet can be directly formed by the grille of the second flow path air outlet area. When there is only one second flow path, the second air outlet / area should be located on the lower side as much as possible, and the first air outlet should be located on the upper side / area to further improve the comfort of air supply. When there are multiple second flow paths, they can be arranged in an upper and lower configuration on the heat exchange body 12, with the corresponding two second air outlets / areas located above and below the first air outlet / area.

[0070] Furthermore, this invention also considers enhancing the airflow effect through the design of the air inlet. Preferably, the air inlet includes a first air inlet and a second air inlet, wherein the first air inlet provides airflow for the first flow path, and the second air inlet provides airflow for the second flow path. The first air inlet and the second air inlet are located on different sides of the housing 11. To increase the air velocity in the second flow path, a high-speed airflow can be directly introduced into the housing 11, or a fan can be installed between the air inlet of the second air inlet and the inlet of the airflow duct 160 to accelerate the airflow in the second flow path; of course, theoretically, an accelerating fan can also be installed in the airflow duct 160; or the acceleration effect can be directly achieved by changing the cross-section of the airflow duct 160.

[0071] Furthermore, in a preferred embodiment of the present invention, multiple airflow ducts 160 are formed on the inner wall surfaces of the heat exchange body 12 and the shell 11 on different sides. A flow-dividing mechanism, such as a flow-dividing duct or a guide plate, is formed inside the shell 11 near the second air inlet. In this way, the air entering from the second air inlet can be distributed into each airflow duct 160 through the flow-dividing mechanism. Further, considering the direction and velocity of the airflow before and after passing the fan blades, a mixing fan 150 is preferably provided between the flow-dividing mechanism and the second air inlet. This mixing fan effectively distributes the airflow entering the heat exchanger from different directions into the flow-dividing structure, making it more suitable for scenarios where different air inlets are provided on the heat exchange device. Therefore, as such... Figure 10 As shown, to enable the heat exchange device 1 to achieve multi-functional modularity, in this embodiment, the housing 11 preferably includes a first housing 111 and a second housing 112. The first housing 111 accommodates the heat exchange body 12 and forms a flow duct 160, while the second housing 112 is equipped with a flow splitting mechanism and a mixing fan 150. The first housing 111 and the second housing 112 are detachably connected together. This allows the first and second housings to be separated and used as independent products in different applications, increasing the product's applicability and improving the user experience.

[0072] To reduce the noise of heat exchanger 1 without affecting its heat exchange effect and to make the airflow from heat exchanger 1 more uniform, in this embodiment, heat exchanger 1 preferably includes an electric auxiliary heating device 14, which is disposed in the second flow path for heating the fluid in the second flow path. Considering that the mixed-flow fan 150 is located at the end, the airflow in the second flow path will attenuate as it moves away from the mixed-flow fan 150. Therefore, at the end closer to the mixed-flow fan 150, the wind speed and air volume of the slit airflow 17 are greater. Therefore, in this embodiment, it is further preferred that the electric auxiliary heating device 14 is located close to the end of the mixed-flow fan 150. The added electric auxiliary heating device 14 can ensure that the temperature of the mixed airflow at that end is similar to the temperature of the airflow at the other end, i.e., the end farther away from the mixed-flow fan 150, so that the heating is uniform and the comfort is improved.

[0073] To facilitate user operation, the present invention may also preferably include a base 13 for the heat exchange device 1, so that the heat exchange device 1 can be supported on the ground.

[0074] In summary, this invention, through the different functional settings of the first and second flow paths, the design of the second flow path guiding the flow of the first flow path, and the final design of the mixed airflow formed by the two, not only improves the heat exchange effect but also makes the delivered air gentler, unlike the hot and dry air in existing technologies. Therefore, this invention is particularly suitable for narrow baseboard radiators. To better understand this technical solution, the following implementation will use the indoor unit of an air source heat pump system as an example.

[0075] Example 2

[0076] This embodiment of the air source heat pump system includes a compressor 4 connected by refrigerant piping, an outdoor unit heat exchanger 2, a flow regulating device 3, a four-way valve 5, and an indoor unit heat exchanger. The indoor unit heat exchanger is of the skirting board type, and its heat exchange body 12 includes only one heat exchange unit, arranged along the length of the casing 11. The following is a detailed description of the accompanying drawings. Figure 4-5 To illustrate further optimizations of this embodiment (other aspects not explicitly stated can be addressed using the same design as embodiment 1, as understood by those skilled in the art):

[0077] The heat exchange device includes a housing 11 with an air inlet and an air outlet, and a heat exchange body 12 disposed between the air inlet and the air outlet of the housing. The heat exchange body 12 forms a first flow path from the air inlet to the air outlet, and the first flow path flows through the heat exchange body 12 to form a heat exchange airflow. A guide air duct 160 is formed between the heat exchange body 12 and the inner wall surface of the housing 11, which does not pass through the heat exchange body 12. The guide air duct 160 forms a second flow path from the air inlet to the air outlet. The end of the second flow path is provided with a slit outlet, and a slit airflow 17 is formed at the slit outlet of the second flow path. The wind speed of the slit airflow 17 is greater than the wind speed of the heat exchange airflow. The end of the second flow path and the end of the first flow path are located on the same side of the housing 11.

[0078] This embodiment provides a specific design for the flow path layout of the heat exchange device, such as... Figure 4 As shown, the second flow path of the heat exchange device 1 in this embodiment includes a second flow path A and a second flow path B. An upper air duct 161 is formed between the upper top surface of the heat exchange body 12 and the upper inner wall surface of the shell 11, and a lower air duct 162 is formed between the lower top surface of the heat exchange body 12 and the lower inner wall surface of the shell 11. The upper air duct 161 forms the second flow path A, and the lower air duct 162 forms the second flow path B. The air inlet includes a first air inlet and a second air inlet. The air outlet includes a first air outlet and a second air outlet. The first air inlet is for air intake of the first flow path, and the first air outlet is for air supply of the first flow path. The second air inlet is for air intake of the second flow path, and the second air outlet is for air supply of the second flow path. The first air inlet is located on the rear side wall of the housing 11 in the width direction, and the first air outlet is located on the front side wall of the housing 11 in the width direction. The second air outlet is located on the same side as the first air outlet. The second air outlet includes a second air outlet A and a second air outlet B. The second air inlet is located at one end of the length direction of the housing 11 to provide air intake for the second flow path A and the second flow path B. The second air outlet A is used to supply air to the second flow path A. The second air outlet B is used to supply air to the second flow path B. A mixed flow fan 150 is provided at the second air inlet. A flow splitting mechanism is provided on the air outlet side of the mixed flow fan 150 to supply the air outlet of the mixed flow fan 150 to the second flow path A and the second flow path B.

[0079] like Figure 5 As shown, in the air source heat pump system of this embodiment, the heat exchange device 1 has only one heat exchange unit. Furthermore, in this embodiment, the first housing 111 and the second housing 112 of the heat exchange device 1 are detachably connected at point BB. Preferably, in this embodiment, the first housing 111 and the second housing 112 are connected by snap-fit, and the connecting cable for connecting the outdoor unit on the second housing 112 is pluggable. When the second housing 112 is snapped into the first housing 111, the connecting cable of the second housing 112 to the outdoor unit is plugged in, and the system operates in heat pump hot air blower mode.

[0080] like Figure 5 As shown, preferably, the electric auxiliary heating device 14 is disposed in the second flow path inside the second housing 112, located at the front end of the air outlet side of the mixed-flow fan 150, and arranged along the height direction of the second housing 112. When the second housing 112 is detached from the first housing 111, the connection line between the second housing 112 and the outdoor unit is disconnected, and the second housing 112 can function as a small-sized warm air blower. The mixed-flow fan 150 draws in air from the air inlet, heats it through the electric auxiliary heating, and then blows it out. The heat pump warm air blower in this embodiment is used in extremely cold weather, and a small warm air blower, namely the second housing 112, can be detached for user use, making it convenient for use on a desktop or other surface.

[0081] Example 3

[0082] This embodiment provides another variation of the heat exchange device 1 used in an indoor unit of a heat pump air conditioning system. The heat exchange device includes a housing 11 with an air inlet and an air outlet, and a heat exchange body 12 disposed between the air inlet and outlet. The heat exchange body 12 forms a first flow path from the air inlet to the air outlet, through which the flow forms a heat exchange airflow. A guide air duct 160, which does not pass through the heat exchange body 12, is formed between the heat exchange body 12 and the inner wall of the housing 11. The guide air duct 160 forms a second flow path from the air inlet to the air outlet, with a slit outlet at the end of the second flow path. A slit airflow 17 is formed at the slit outlet, and the velocity of the slit airflow 17 is greater than the velocity of the heat exchange airflow. The end of the second flow path and the end of the first flow path are located on the same side of the housing 11. A specific design of the flow path layout of the heat exchange device is provided below. Figure 6-8 Explanation:

[0083] like Figure 8 As shown in the preferred embodiment, the heat exchanger body 12 of the indoor unit heat exchanger, which also adopts a skirting board structure shape, has two parallel heat exchange units, which are arranged side by side along the height direction of the shell 11. This design ensures that even with an increased shell 11 height, the heat exchange device 1 will not experience uneven temperature due to excessively long flow paths. Therefore, this embodiment has also optimized and adjusted its second flow path, the corresponding air inlet and outlet, and its relationship with the first flow path.

[0084] In this embodiment, the second flow path includes a second flow path A and a second flow path B. An upper air duct 161 is formed between the upper top surface of the heat exchange body 12 and the upper inner wall surface of the shell 11, and a lower air duct 162 is formed between the lower top surface of the heat exchange body 12 and the lower inner wall surface of the shell 11. The upper air duct 161 forms the second flow path A, and the lower air duct 162 forms the second flow path B. The air inlet includes a first air inlet and a second air inlet. The air outlet includes a first air outlet and a second air outlet. The first air inlet is for air intake of the first flow path, and the first air outlet is for air supply of the first flow path. The second air inlet is for air intake of the second flow path, and the second air outlet is for air supply of the second flow path. The first air inlet is located on the rear side wall in the width direction of the shell 11, and the first and second air outlets are located on the rear side wall in the width direction of the shell 11. On the front sidewall of the housing 11 in the width direction; the second air outlet includes a second air outlet A and a second air outlet B, and the second air inlet includes a second air inlet A and a second air inlet B, wherein the second air inlet A is located at one end of the housing 11 in the length direction to provide air intake for the second flow path A, and the second air inlet B is located at the other end of the housing 11 in the length direction to provide air intake for the second flow path B; the second air outlet A is used to supply air to the second flow path A; the second air outlet B is used to supply air to the second flow path B; a mixed flow fan A151 is provided between the second air inlet A and the upper air duct 161 to provide air supply power for the second flow path A; a mixed flow fan B152 is provided between the second air inlet B and the lower air duct 162 to provide air supply power for the second flow path B. By controlling the mixing fans 150 at both ends to operate at different speeds, the air outlet speeds of the upper air duct 161 and the lower air duct 162 are different. As a result, after the heat exchange airflow mixes with the slit airflow 17, it will diffuse into the room at different angles to heat up and provide heating, thus meeting the diverse needs of users.

[0085] like Figure 7 As shown, in this embodiment, preferably, an electric auxiliary heating device 14 is installed near the fan end in the upper air duct 161 and the lower air duct 162 to improve the heating effect.

[0086] Example 4

[0087] This embodiment provides another variation of the heat exchange device 1 used in an indoor unit of a heat pump air conditioning system. The heat exchange device includes a housing 11 with an air inlet and an air outlet, and a heat exchange body 12 disposed between the air inlet and outlet. The heat exchange body 12 forms a first flow path from the air inlet to the air outlet, through which a heat exchange airflow is formed. A guide air duct 160, which does not pass through the heat exchange body 12, is formed between the heat exchange body 12 and the inner wall of the housing 11. The guide air duct 160 forms a second flow path from the air inlet to the air outlet, with a slit outlet at the end of the second flow path. A slit airflow 17 is formed at the slit outlet, and the velocity of the slit airflow 17 is greater than the velocity of the heat exchange airflow. The end of the second flow path and the end of the first flow path are located on the same side of the housing 11. Specific designs for the flow path layout of the heat exchange device are provided, such as... Figure 8 In this embodiment, the heat exchanger body 12 of the heat exchanger device 1 is provided with two parallel heat exchange units, which are arranged side by side along the length of the shell 11. Therefore, this embodiment has also optimized and adjusted its second flow path, the corresponding air inlet and outlet, and its relationship with the first flow path. This will be explained in detail below with reference to the accompanying drawings.

[0088] like Figure 6 and Figure 9 As shown, the second flow path of the heat exchange device 1 in the heat pump air conditioning system provided in this embodiment includes a second flow path A1, a second flow path A2, a second flow path B1, and a second flow path B2; an upper drainage duct A1163 and an upper drainage duct A2165 are formed side by side along the length of the shell 11 between the upper top surface of the heat exchange body 12 and the upper inner wall surface of the shell 11; a lower drainage duct B1164 and a lower drainage duct B2166 are formed side by side along the length of the shell 11 between the lower top surface of the heat exchange body 12 and the lower inner wall surface of the shell 11; wherein the upper drainage duct A1163 forms the second flow path A1, and the upper drainage duct A2165 forms the second flow path B1. Air duct A2165 forms a second flow path A2, lower air duct B1164 forms a second flow path B1, and lower air duct B2166 forms a second flow path B2; the air inlet includes a first air inlet and a second air inlet; the air outlet includes a first air outlet and a second air outlet; wherein the first air inlet is for air intake of the first flow path, and the first air outlet is for air supply of the first flow path; the second air inlet is for air intake of the second flow path, and the second air outlet is for air supply of the second flow path; the first air inlet is located on the rear side wall in the width direction of the housing 11, and the first air outlet and the second air outlet are located on the front side wall in the width direction of the housing 11;

[0089] The second air outlet includes a second air outlet A and a second air outlet B, and the second air inlet includes a second air inlet A and a second air inlet B. The second air inlet A is located at one end of the length direction of the housing 11 to provide air intake for the second flow path A1 and the second flow path B1, and the second air inlet B is located at the other end of the length direction of the housing 11 to provide air intake for the second flow path A2 and the second flow path B2. The second air outlet A1 is used to supply air to the second flow path A1; the second air outlet A2 is used to supply air to the second flow path A2; the second air outlet B1 is used to supply air to the second flow path B1; and the second air outlet B2 is used to supply air to the second flow path B2. A first flow splitting mechanism and a first mixed flow fan 153 are provided at the second air inlet A to supply air to the second flow path A1 and the second flow path B1 and provide acceleration power. A second flow splitting mechanism and a second mixed flow fan 154 are provided at the second air inlet B to supply air to the second flow path A2 and the second flow path B2 and provide acceleration power. The heat exchanger housing 11 includes two second housings 112 located at both ends of the first housing 111. Mixed-flow fans 150 are installed at both ends of the heat exchange body 12, increasing the airflow volume and velocity in the air duct. Therefore, the heat exchange body 12 can be made longer, thus improving the overall heating capacity. More preferably, the heat exchange device 1 includes two radiant devices located near the mixed-flow fans A151 and B152, respectively, to heat the airflow in the second flow path, making the airflow from the heat exchange device 1 more uniform and gentle, and reducing noise.

[0090] The heat exchange device provided in this embodiment has two heat exchange units arranged side by side along its length, ensuring that the heat exchange device will not have uneven temperature due to excessive flow path when the shell of the heat exchange device is too long, i.e., the skirting board is too long.

[0091] In summary, this invention provides a heat exchange device and an air source heat pump system incorporating it. Through the design of the heat exchange device, its ductwork generates a narrow airflow, which guides the heat exchange airflow that needs to pass through the heat exchange body. Simultaneously, the guided heat exchange airflow mixes with the narrow airflow and / or room temperature air before being blown out through the outlet of the heat exchange device. The amplified airflow achieves a gentler blowout, solving the problem of high outlet temperature and dryness in existing technologies. Furthermore, the device, in conjunction with an electric auxiliary heating device, achieves uniform airflow and utilizes a heating method primarily based on radiant heating supplemented by forced convection, significantly reducing noise. The narrow design allows the airflow to be closer to the ground, resulting in more comfortable heating, and the device itself is compact and aesthetically pleasing.

[0092] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A heat exchange device, characterized in that: The heat exchange device includes The housing (11) includes an air inlet and an air outlet; The heat exchange body (12) is disposed between the air inlet and the air outlet of the housing (11), forming a first flow path from the air inlet to the air outlet. The first flow path flows through the heat exchange body (12) to form a heat exchange airflow. A flow channel (160) that does not pass through the heat exchange body (12) is formed between the inner wall surface of the heat exchange body (12) and the shell (11). The flow channel (160) forms a second flow path from the air inlet to the air outlet. A slit outlet is provided at the end of the second flow path. The second flow path forms a slit airflow (17) at the slit outlet. The end of the second flow path is located on the same side of the housing (11) as the end of the first flow path; The wind speed of the slit airflow (17) is greater than the wind speed of the heat exchange airflow, so as to produce a guiding effect on the heat exchange airflow; the ventilation cross-section of the guiding air duct (160) gradually decreases in width along the airflow outflow direction until the slit outlet is formed at the end.

2. The heat exchange device as described in claim 1, characterized in that: The first flow path and the second flow path are respectively delivered outside the housing, and the two are mixed before reaching a preset distance outside the housing.

3. The heat exchange device as described in claim 1, characterized in that: A mixing air cavity is formed on one side of the housing (11). The mixing air cavity is located at the end of the first flow path and the second flow path. The heat exchange airflow formed by the first flow path and the slit airflow (17) formed by the second flow path are mixed in the mixing air cavity and then sent out of the housing (11) through the air outlet.

4. The heat exchange device as described in claim 3, characterized in that: A diversion mechanism is formed on the other side of the housing (11). The diversion mechanism is set at the beginning of the first flow path and the second flow path to send the air flowing in from the air inlet into the first flow path and the second flow path respectively. An acceleration fan is provided between the outlet of the diversion mechanism and the inlet of the second flow path.

5. The heat exchange device as described in claim 1, characterized in that: The air outlet includes a first air outlet and a second air outlet, which are located on the same side of the housing (11). The first air outlet is used to send out the heat exchange airflow of the first flow path, and the second air outlet is used to send out the slit airflow (17) of the second flow path and make the slit airflow (17) inclined at an angle θ to the heat exchange airflow sent out from the first air outlet, where 0° < θ < 90°.

6. The heat exchange device as described in claim 1, characterized in that: The air inlet includes a first air inlet and a second air inlet, wherein the first air inlet provides air intake for the first flow path, and the second air inlet provides air intake for the second flow path, and the first air inlet and the second air inlet are disposed on different sides of the housing (11).

7. The heat exchange device as described in claim 6, characterized in that: The heat exchange body (12) and the inner wall surface of the shell (11) on different sides form a plurality of air ducts (160). A flow splitting mechanism is formed in the shell (11) near the second air inlet. The flow splitting mechanism distributes the air entering from the second air inlet into each of the air ducts (160). A mixing fan is provided between the flow splitting mechanism and the second air inlet.

8. The heat exchange device as described in claim 7, characterized in that: The housing (11) includes a first housing (111) and a second housing (112). The first housing (111) accommodates the heat exchange body (12) and forms the air duct (160). The second housing (112) is provided with the flow splitting mechanism and the mixing fan. The first housing (111) and the second housing (112) are detachably connected together.

9. The heat exchange device as described in claim 1, characterized in that: The air duct (160) is formed in the inner wall of the housing (11).

10. The heat exchange device as described in claim 1, characterized in that: The air duct (160) is a narrow duct formed by the inner wall of the shell (11) and the top, bottom or side of the heat exchange body (12) and the inner wall of the shell (11).

11. The heat exchange device as described in claim 1, characterized in that: The heat exchange device (1) is a narrow heat dissipation device.

12. The heat exchange device as described in claim 1, characterized in that: The heat exchange device (1) is a narrow-type heat dissipation device; The second flow path includes second flow path A and second flow path B. An upper airflow duct (161) is formed between the upper top surface of the heat exchange body (12) and the upper inner wall surface of the shell (11), and a lower airflow duct (162) is formed between the lower top surface of the heat exchange body (12) and the lower inner wall surface of the shell (11); wherein the upper airflow duct (161) forms the second flow path A, and the lower airflow duct (162) forms the second flow path B; The air inlet includes a first air inlet and a second air inlet; the air outlet includes a first air outlet and a second air outlet; wherein the first air inlet is for air intake through the first flow path, and the first air outlet is for air supply through the first flow path; the second air inlet is for air intake through the second flow path, and the second air outlet is for air supply through the second flow path. The first air inlet is located on the rear side wall of the housing (11) in the width direction, and the first air outlet is located on the front side wall of the housing (11) in the width direction; the second air outlet is located on the same side as the first air outlet. The second air outlet includes a second air outlet A and a second air outlet B. The second air inlet is located at one end of the length direction of the housing (11) to provide air inlet for the second flow path A and the second flow path B. The second air outlet A is used to supply air to the second flow path A. The second air outlet B is used to supply air to the second flow path B. A mixed flow fan is provided at the second air inlet. A flow splitting mechanism is provided on the air outlet side of the mixed flow fan to supply the air outlet of the mixed flow fan to the second flow path A and the second flow path B.

13. The heat exchange device as described in claim 1, characterized in that: The heat exchange device (1) is a narrow-type heat dissipation device: The second flow path includes second flow path A and second flow path B. An upper airflow duct (161) is formed between the upper top surface of the heat exchange body (12) and the upper inner wall surface of the shell (11), and a lower airflow duct (162) is formed between the lower top surface of the heat exchange body (12) and the lower inner wall surface of the shell (11); wherein the upper airflow duct (161) forms the second flow path A, and the lower airflow duct (162) forms the second flow path B; The air inlet includes a first air inlet and a second air inlet; the air outlet includes a first air outlet and a second air outlet; wherein the first air inlet is for air intake through the first flow path, and the first air outlet is for air supply through the first flow path; the second air inlet is for air intake through the second flow path, and the second air outlet is for air supply through the second flow path; the first air inlet is disposed on the rear side wall in the width direction of the housing (11), and the first air outlet and the second air outlet are disposed on the front side wall in the width direction of the housing (11); The second air outlet includes a second air outlet A and a second air outlet B, and the second air inlet includes a second air inlet A and a second air inlet B. The second air inlet A is located at one end of the housing (11) along its length to provide air intake for the second flow path A, and the second air inlet B is located at the other end of the housing (11) along its length to provide air intake for the second flow path B. The second air outlet A is used to supply air to the second flow path A, and the second air outlet B is used to supply air to the second flow path B. A mixed-flow fan A (151) is provided between the second air inlet A and the upper air duct (161) to provide air supply power for the second flow path A; a mixed-flow fan B (152) is provided between the second air inlet B and the lower air duct (162) to provide air supply power for the second flow path B.

14. The heat exchange device as described in claim 13, characterized in that: The heat exchange body (12) is provided with two parallel heat exchange units, which are arranged side by side along the height direction of the shell (11).

15. The heat exchange device as described in claim 1, characterized in that: The heat exchange device (1) is a narrow-type heat dissipation device: The second flow path includes second flow path A1, second flow path A2, second flow path B1, and second flow path B2; The heat exchange body (12) has an upper airflow duct A1 (163) and an upper airflow duct A2 (165) arranged side by side along the length of the shell (11) between the upper top surface and the upper inner wall surface of the shell (11). The heat exchange body (12) has a lower airflow duct B1 (164) and a lower airflow duct B2 (166) arranged side by side along the length of the shell (11) between the lower top surface and the lower inner wall surface of the shell (11). The upper airflow duct A1 (163) forms the second flow path A1, the upper airflow duct A2 (165) forms the second flow path A2, the lower airflow duct B1 (164) forms the second flow path B1, and the lower airflow duct B2 (166) forms the second flow path B2. The air inlet includes a first air inlet and a second air inlet; the air outlet includes a first air outlet and a second air outlet; wherein the first air inlet is for air intake through the first flow path, and the first air outlet is for air supply through the first flow path; the second air inlet is for air intake through the second flow path, and the second air outlet is for air supply through the second flow path; the first air inlet is disposed on the rear sidewall in the width direction of the housing (11), and the first air outlet and the second air outlet are disposed on the front sidewall in the width direction of the housing (11); The second air inlet includes a second air inlet A and a second air inlet B, and the second air outlet includes a second air outlet A and a second air outlet B. The second air outlet A includes a second air outlet A1 and a second air outlet A2, and the second air outlet B includes a second air outlet B1 and a second air outlet B2. The second air inlet A is located at one end of the length direction of the housing (11) to provide air intake for the second flow path A1 and the second flow path B1. The second air inlet B is located at the other end of the length direction of the housing (11) to provide air intake for the second flow path A2 and the second flow path B2. The second air outlet A1 is used to supply air to the second flow path A1, and the second air outlet A2 is used to supply air to the second flow path A2. The second air outlet B1 is used to supply air through the second flow path B1; the second air outlet B2 is used to supply air through the second flow path B2; A first diversion mechanism and a first mixing fan (153) are provided at the second air inlet A to supply air to the second flow path A1 and the second flow path B1 and provide acceleration power. A second diversion mechanism and a second mixing fan (154) are provided at the second air inlet B to supply air to the second flow path A2 and the second flow path B2 and provide acceleration power.

16. The heat exchange device as described in claim 15, characterized in that: The heat exchange body (12) is provided with two parallel heat exchange units, which are arranged side by side along the length of the shell (11).

17. The heat exchange device according to any one of claims 1-16, characterized in that: The heat exchange device also includes an electric auxiliary heating device (14), which is disposed in the second flow path for heating and accelerating the fluid in the second flow path.

18. The heat exchange device according to any one of claims 1-16, characterized in that: The heat exchange device (1) also includes a base (13) which supports the housing (11) on the ground.

19. The heat exchange device according to any one of claims 1-14, characterized in that: The heat exchange device is a skirting board type heat exchange device (1).

20. An air source heat pump system, characterized in that: Its indoor unit terminal uses the heat exchange device (1) described in any one of claims 1-19.

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