Heat exchange module and cabinet

Abstract

The present application provides a heat exchange module and a cabinet. The heat exchange module is applied to the cabinet. The cabinet also includes a cabinet body. The cabinet body has a first space and a second space. The temperature of the first space is higher than the temperature in the second space. The heat exchange module has a first air circulation system and a second air circulation system. Heat exchange can be performed between the first air circulation system and the second air circulation system. The air inlet and air outlet of the first air circulation system are both used to communicate with the first space. The air outlet of the second air circulation system is connected to the external space, and the air inlet of the second air circulation system can be selectively used to communicate with the external space and / or the second space. According to the heat dissipation requirements of the first space and the second space, the air inlet of the second air circulation system can be selected to draw air from the external space and / or the second space. Heat dissipation of the first space and / or the second space can be achieved through a heat exchange module, which is highly flexible.

Description

Technical Field

[0001] The present application relates to the field of heat exchange technology, and in particular to a heat exchange module and a cabinet. Background Art

[0002] Equipment (such as base stations and other communication equipment) in a cabinet (for example, an outdoor cabinet) will emit a lot of heat during operation. Operating the equipment at high temperatures will lead to reduced performance and even shortened service life. Therefore, the cabinet needs to be equipped with a heat exchange module as a heat dissipation device to reduce the temperature inside the compartment where the above equipment is located.

[0003] However, the heat exchange module configured in the cabinet can usually only cool down one warehouse. Different warehouses need to be equipped with different heat exchange modules, which has poor flexibility and high cost. Summary of the Invention

[0004] The present application provides a heat exchange module and a cabinet for cooling different compartments of a cabinet and reducing the number of heat exchange modules required.

[0005] In a first aspect, a heat exchange module is provided, which is applied to a cabinet, the cabinet including a cabinet body, the cabinet body having a first space and a second space, the temperature of the first space being higher than the temperature in the second space, the heat exchange module having a first air circulation system and a second air circulation system, and heat exchange can be performed between the first air circulation system and the second air circulation system; the air inlet and the air outlet of the first air circulation system are both used to communicate with the first space; and the air outlet of the second air circulation system is connected to the external space, and the air inlet of the second air circulation system can be selectively used to communicate with the external space and / or the second space. When the second space shares the heat exchange module with the first space, the air inlet of the second air circulation system is connected to the second space, and the air in the second space is used to cool the air in the first air circulation system, and the hotter air in the second space is continuously discharged to the external space. The second space continuously replenishes the air with lower temperature from the external space through the air inlet, and the cooling of the first space and the second space is achieved at the same time; when the second space does not need to share the heat exchange module with the first space due to reasons such as being equipped with a separate heat dissipation device, the air inlet of the second air circulation system is connected to the external space, and the air in the external space with a lower temperature than the second space is used to cool the air in the first air circulation system, and the cooling efficiency is higher; and when the air inlet of the second air circulation system is connected to the external space and the second space at the same time, the cooling efficiency of the first space and the second space can be taken into account.

[0006] The second air circulation system can have various forms. In a specific feasible embodiment, the second air circulation system may include an air supply assembly, a first air inlet structure, a second air inlet structure and an air outlet structure. The air supply assembly includes at least one air supply component; wherein the air outlet of each air supply component is connected to the external space through the air outlet structure; the air inlet of each air supply component can selectively be connected to the external space through the first air inlet structure, or, be connected to the second space through the second air inlet structure.

[0007] The air inlet of each air supply component can be selectively connected to the external space or the second space in various forms. In a specific feasible implementation scheme, when each air supply component is in the first state, the air inlet of the air supply component can be connected to the air outlet of the first air inlet structure; when each air supply component is in the second state, the air inlet of the air supply component can be connected to the air outlet of the second air inlet structure.

[0008] In one specific embodiment, the air outlet of the first air inlet structure can be arranged opposite the air outlet of the second air inlet structure, and each air supply component can be located between the air outlet of the first air inlet structure and the air outlet of the second air inlet structure. When the air supply component is in a first state, the air inlet of the air supply component is arranged opposite the air outlet of the first air inlet structure; when the air supply component is in a second state, the air inlet of the air supply component is arranged opposite the air outlet of the second air inlet structure. Simply by flipping the air supply component, the air inlet of the air supply component can be connected to the second space or the external space.

[0009] The air inlet of the air outlet structure and the air outlet of the air supply component can be connected in various ways, for example, via a hose connection. In another specific embodiment, the air inlet direction of each air supply component is perpendicular to the air outlet direction; the air inlet of the air outlet structure is arranged relative to the gap between the air outlet of the first air inlet structure and the air outlet of the second air inlet structure; and when each air supply component is in the first state and the second state, the air outlet of the air supply component is arranged relative to the air inlet of the air outlet structure. Compared with a hose connection, the structure of the second air circulation system can be simplified.

[0010] In another specific embodiment, the air outlet of the first air inlet structure and the air outlet of the second air inlet structure can be arranged side by side and oriented in the same direction; each air supply component can slide along the arrangement direction of the air outlet of the first air inlet structure and the air outlet of the second air inlet structure. By sliding the air supply component in a straight line, the air inlet of the air supply component can be switched between connecting to the air outlet of the first air inlet structure and connecting to the air outlet of the second air inlet structure.

[0011] For example, in a specific embodiment, each air supply component is a centrifugal fan.

[0012] In addition to using the form of switching the air inlet of the air supply component between the air outlet of the first air inlet structure and the air outlet of the second air inlet structure, the second air circulation system can also have the following form: In a specific feasible implementation, the air outlet of the first air inlet structure and the air outlet of the second air inlet structure can both be connected to the air inlet of each air supply component; the first air inlet structure is provided with a first switch for controlling the on and off of the first air inlet structure, and the second air inlet structure is provided with a second switch for controlling the on and off of the second air inlet structure. By controlling the first switch and the second switch respectively, each air supply component can draw air from the external space, or draw air from the second space, or draw air from the second space and the external space at the same time.

[0013] In another specific embodiment, the second air circulation system may further include a third air inlet structure, the air inlet of the third air inlet structure being connected to the second space, and the air outlet of the third air inlet structure being connected to the air outlet of the first air inlet structure. When the air inlet of the air supply component is connected to the air outlet of the first air inlet structure, the air supply component can simultaneously draw air from the external space and the second space, and each air supply component can provide heat dissipation for both the first and second spaces.

[0014] In another specific possible implementation scheme, since the heat dissipation demand of the second space is often lower, the air volume of the third air inlet structure can be made smaller than the air volume of the first air inlet structure.

[0015] In the second aspect, the present application also provides a cabinet, which includes a cabinet body and a heat exchange module as described in any of the above technical solutions; wherein the cabinet body can have a first space and a second space; the air inlet and air outlet of the first air circulation system are both connected to the first space; the air inlet of the second air circulation system can be optionally connected to the external space and / or the second space.

[0016] When the second space shares the heat exchange module with the first space, the air inlet of the second air circulation system is connected to the second space, and the air in the second space is used to cool the air in the first air circulation system, and the hotter air in the second space is continuously discharged to the external space. The second space continuously replenishes the air with lower temperature from the external space through the air inlet, and the cooling of the first space and the second space is achieved at the same time; when the second space does not need to share the heat exchange module with the first space due to reasons such as being equipped with a separate heat dissipation device, the air inlet of the second air circulation system is connected to the external space, and the air in the external space with a lower temperature than the second space is used to cool the air in the first air circulation system, and the cooling efficiency is higher; and when the air inlet of the second air circulation system is connected to the external space and the second space at the same time, the cooling efficiency of the first space and the second space can be taken into account. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The following is an exemplary perspective view of a cabinet provided in an embodiment of the present application;

[0018] Figure 2 Expressed Figure 1 The cross-sectional view of the cabinet in the AA direction;

[0019] Figure 3 Expressed Figure 2 An enlarged view of the cross-sectional view of the heat exchange module 20;

[0020] Figure 4 Express Figure 1 The cross-sectional view of the cabinet in the BB direction;

[0021] Figure 5 Expressed Figure 3 An enlarged view of the cross-sectional view of the heat exchange module 20;

[0022] Figure 6 Express Figure 1 Cross-sectional view in CC direction;

[0023] Figure 7 Expressed Figure 6 A variation of the heat exchange module 20 shown;

[0024] Figure 8 A partial structural diagram of another second air circulation system in a cabinet provided in an embodiment of the present application is shown;

[0025] Figure 9 Express Figure 8 Cross-sectional view in the middle DD direction;

[0026] Figure 10 A partial structural diagram of another second air circulation system in a cabinet provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0028] In order to facilitate the understanding of the cabinet provided in the embodiment of the present application, its application scenario is first explained. The cabinet can be an indoor cabinet or an outdoor cabinet. Regardless of the type of cabinet, it has a first space and a second space, and when the cabinet is put into use, the heating power of the equipment in the first space is greater than the heating power of the equipment in the second space, resulting in the air temperature in the first space being higher than the air temperature in the second space. Here, the first space and the second space can both refer to independent compartments. For example, when the cabinet is put into use, communication equipment with a large amount of heat such as a base station is installed in the first space, and devices with a small amount of heat such as batteries are installed in the second space.

[0029] Figure 1The following is an exemplary perspective view of a cabinet provided in an embodiment of the present application. Figure 2 Expressed Figure 1 The cross-sectional view of the cabinet in the AA direction. Figure 1 and Figure 2 For example, the cabinet 01 includes a cabinet body 10 and a heat exchange module 20. The cabinet body 10 includes a surrounding wall 11, a cabinet door 16, a top wall 15, a bottom wall 14 and a first partition wall 12. The surrounding wall 11 is formed by three side walls connected in sequence and perpendicular to each other. The top wall 15 is arranged at the top opening of the surrounding wall 11, and the bottom wall 14 is arranged at the bottom opening of the surrounding wall 11. The cabinet door 16 is hinged to one side wall edge of the surrounding wall 11 by a hinge. The surrounding wall 11, the top wall 15, the bottom wall 14 and the cabinet door 16 form a closed space. The first partition wall 12 is arranged on the inner side of the middle part of the surrounding wall 11 and is basically parallel to the bottom wall 14, dividing the above-mentioned closed space into a first space S1 and a second space S2. The first space S1 can be used to install equipment with a large heat generation such as a base station, and the second space S2 can be used to install devices with a small heat generation such as batteries. A base 13 is provided below the bottom wall 14 of the chamber where the second space S2 is located, supporting the bottom wall 14 and elevating the bottom wall 14 above the ground. Furthermore, the bottom wall 14 has an air inlet h1. The bottom wall 14 is elevated above the bottom surface, which prevents the air inlet h1 from being blocked by the ground, thereby facilitating air intake and preventing rainwater from entering with the wind. However, it should be understood that this arrangement of the air inlet h1 of the cabinet 10 is merely exemplary, and the air inlet of the cabinet 10 may also be provided at the bottom of any one or more side walls of the surrounding wall 11. Thus, air entering through the air inlet may flow through most of the second space S2 to the upper portion of the second space S2 and enter the heat exchange module 20.

[0030] Figure 3 Expressed Figure 2 The enlarged cross-sectional view of the heat exchange module 20 is shown in conjunction with Figures 1 to 3 For example, the heat exchange module 20 has a cubic shell 21, which has a first side wall 21a and a second side wall 21b that are opposite to each other, and connecting walls (21c, 21d, 21e and 21f) connecting the first side wall 21a and the second side wall 21b. The upper part of the cabinet door 16 is provided with a mounting hollow structure 16h ( Figure 2), the housing 21 is inserted into the hollow structure 16h, wherein the connecting walls (21c, 21d, 21e, and 21f) are respectively affixed and fixed to the four sides of the hollow structure 16h in a one-to-one correspondence. The first side wall 21a faces the external space, and the second side wall 21b faces one side wall of the surrounding wall 11, so as to embed the housing 21 in the cabinet door 16. A first partition wall 26 is also provided in the housing 21, and the edges of the first partition wall 26 are respectively connected to the middle portions of the connecting walls (21c, 21d, 21e, and 21f), thereby dividing the space within the housing 21 into two independent subspaces.

[0031] Continue to refer Figure 2 and Figure 3 A condenser 22 and an air supply component 23a are provided in the subspace between the first partition wall 26 and the first side wall 21a; wherein, the upper portion of the first side wall 21a has a first window W1, which is covered by a protective net to prevent the air supply component 23a from injuring people or foreign matter from entering. The condenser 22 is arranged on the inner side of the protective net of the first window W1, and is arranged opposite to the first window W1, and is connected to the first side wall 21a; the first side wall 21a also has a second window W2, which is located on the lower side of the first window W1 and is covered by a protective net. The air supply component 23a is located on the inner side of the second window W2 and is arranged opposite to the second window W2, and can be fixed (such as by bolts) to the first partition wall 26; the air supply component 23a can be a centrifugal fan, or other components with an airflow driving function, and the air inlet direction is perpendicular to the air outlet direction. Figures 1 to 3 In the embodiment, the air supply component 23a adopts a centrifugal fan as an example. The second window W2 can be regarded as an air duct T1 that can supply air to the air supply component 23a. Specifically, the second window W2 is a through hole opened in the first side wall 21a. The inner wall of the through hole forms the air duct T1. The length of the air duct T1 is the wall thickness of the first side wall 21a. However, this is only a special case of the air duct T1. The air duct T1 can also have other forms, such as forming the air duct T1 through an extended pipe. The relevant deformation will be described later. The air outlet of the air supply component 23a faces the connecting wall 21d. The air duct T3 can be formed between the air outlet of the air supply component 23a and the first window W1. In other words, the air inlet of the air duct T3 is arranged relative to the air outlet of the air supply component 23a, and the first window W1 serves as the air outlet of the air duct T3. A vent d1 is provided at a position of the first partition wall 26 opposite to the second window W2 , and an air inlet of the air supply component 23 a is disposed opposite to the vent d1 .

[0032] Continue to refer Figure 2 and Figure 3An evaporator 24 and an airflow driving component 25a are provided in the subspace between the second side wall 21b and the first partition wall 26. The form of the airflow driving component 25a can refer to the form of the air supply component 23a, for example, it can be a centrifugal fan; a vent d2 is provided on the upper portion of the second side wall 21b, and the airflow driving component 25a is fixed on the second side wall 21b, and the air inlet of the airflow driving component 25a is arranged opposite to the vent d2. Similar to the second window W2, the vent d2 also forms an air duct T5, that is, the air inlet of the airflow driving component 25a is arranged opposite to the air outlet of the air duct T5; a vent d3 is further provided on the lower portion of the second side wall 21b, and the vent d3 is located on the lower side of the vent d2. The evaporator 24 is fixed to the second side wall 21b and is arranged opposite to the vent d3. The second side wall 21b is further provided with a vent d4, located between the vent d3 and the connecting wall 21f. A second partition wall 27 is further connected between the first partition wall 26 and the second side wall 21b. This second partition wall 27 extends from a position on the first partition wall 26 on the side away from the connecting wall 21f to a position between the vent d4 and the evaporator 24, thereby separating the subspace between the first partition wall 26 and the second side wall 21b into a duct T2 and a duct T4. The air inlet of duct T2 communicates with the second space S2 through the vent d4. The air outlet of duct T2 is located opposite the air outlet of duct T1 and communicates with the air inlet of the air supply component 23a through the vent d1. The air duct T4 connects the air outlet of the airflow driving component 25a with the vent d3. The condenser 22 and the evaporator 24 are connected by a pipe for liquid circulation heat exchange.

[0033] The following combination Figure 2 and Figure 3 , the process of heat dissipation from the heat exchange module 20 to the first space S1 and the second space S2 is described.

[0034] After the airflow drive component 25a is activated, the air in the first space S1, which has been heated by the heat emitted by the base station and other communication equipment, is driven by the airflow drive component 25a to form an airflow. The airflow enters the air inlet of the airflow drive component 25a through the air duct T5, and is blown out of the air outlet to the air duct T4 through the airflow drive component 25a. It contacts the evaporator 24 for heat exchange, transfers heat to the evaporator 24, and the airflow is cooled. The airflow returns to the first space S1 through the vent d4, and the temperature in the first space S1 is reduced. The approximate path of the above airflow can be referred to Figure 2 and Figure 3The arrows passing through the airflow drive component 25a are shown in the figure. However, it should be understood that these arrows are merely schematic representations to illustrate the circulation trend of the airflow. Actual airflow conditions are more complex, such as turbulence, and the airflow may also be affected by the internal structure of the first space S1 and undergo various deformations. The airflow paths indicated by arrows below are similar and will not be further described. The air duct T5, the airflow drive component 25a, and the air duct T4 illustratively form part of the first air circulation system.

[0035] After air supply component 23a is activated, air in second space S2 passes through vent d4, duct T2, and vent d1 to the air inlet of air supply component 23a. Driven by air supply component 23a, air is output from its outlet into duct T3 and then passes through condenser 22. Because the air temperature in second space S2 is lower than that in first space S1, the liquid temperature in condenser 22 is higher than that of the air flowing out of second space S2. Consequently, the air flowing out of second space S2 cools condenser 22 and carries the heat from condenser 22 to the outside world through first window W1. During this process, heat from first space S1 is absorbed by evaporator 24 and transferred to condenser 22. Heat in condenser 22 is then carried to the outside world by air from second space S2. Moreover, when the second space S2 does not need to dissipate heat or the heat dissipation requirement is low, the air supply component 23a can be turned 180 degrees, and the air outlet of the air supply component 23a is still connected to the air inlet of the air duct T3, while the air inlet of the air supply component 23a is arranged opposite to the air outlet of the air duct T1. At this time, it is recorded as the first state of the air supply component 23a. The air is no longer taken in from the second space S2 through the air duct T2, but is directly taken in from the external space through the air duct T1. Since the air temperature of the external space is lower than the temperature of the second space S2, the cooling effect on the condenser 22 is better. Please refer to the form of the air supply component 23a after turning 180 degrees. Figure 4 and Figure 5 Correspondingly, when the air inlet of the air supply component 23a is opposite to the air outlet of the air duct T2, it is recorded as the second state of the air supply component 23a. Among them, the air duct T1, the air duct T2, the air supply component 23a and the air duct T3 illustratively constitute part of the second air circulation system.

[0036] Figure 4 Express Figure 1 The cross-sectional view of the cabinet in the BB direction, Figure 5 Expressed Figure 3 An enlarged view of the cross-sectional view of the heat exchange module 20. Figure 4 and Figure 5 ,in, Figure 5 and Figure 3The only difference is that airflow drive component 25a is replaced by airflow drive component 25b, which has the same structure and installation method as airflow drive component 25a; air supply component 23a is replaced by air supply component 23b, and second window W2 is replaced by third window W3 (or, similar to air duct T1, denoted as air duct T1'). The difference between air supply component 23b and air supply component 23a is the installation method. For example, the air outlet of air supply component 23b is connected to the external space through air duct T3, while the air inlet of air supply component 23b draws air from the external space through air duct T1', similar to the above-mentioned connection between the air inlet of air supply component 23a and the air outlet of air duct T1. However, air supply component 23b can also rotate 180 degrees to draw air from the second space S2. However, air supply component 23b directly drawing air from the external space can more effectively cool the air in first space S1 than drawing air from the second space S2.

[0037] exist Figure 3 and Figure 5In the figure, the air duct T1 and the air duct T1' are two independent structures, which is only exemplary. The air duct T1 and the air duct T1' can also be replaced by one air duct to supply air to the air supply component 23a and the air supply component 23b at the same time, or replaced by a structure with one air inlet and multiple air outlets, or a structure with multiple air inlets and one air outlet. As long as it can supply air to the air inlet of the air supply component 23a and the air inlet of the air supply component 23b, the above structures can be called the first air inlet structure; similarly, the air supply component 2 3a and the air supply component 23b share the same air duct T3 for air outlet, which is also only exemplary. A partition can be used to separate the air duct T4 into two sub-air ducts respectively connected to the air outlet of the air supply component 23a and the air outlet of the air supply component 23b, or a structure with multiple air outlets can be used with an air inlet connected to the air outlet of the air supply component 23a and the air supply component 23b at the same time, or a structure with multiple air inlets and one air outlet. The above various alternative forms of the air duct T4 and the air duct T4 can be used. All of them can be called the air outlet structure of the air supply component, and the form of the air outlet structure is not limited to the above form, as long as it can take air from the air outlet of the air supply component 23a and the air outlet of the air supply component 23b and exhaust the air to the external space; similarly, the air supply component 23a and the air supply component 23b share the same air duct T2, but this is only exemplary. For example, a partition can be used to separate the air duct T2 into two sub-air ducts respectively connected to the air supply component 23a and the air supply component 23b, or ... There is an air inlet connected to the second space S2, and a structure with two air outlets connected to the air inlet of the air supply component 23a and the air inlet of the air supply component 23b respectively, or a structure with multiple air inlets and one air outlet. The above air duct T2 and various alternative forms of air duct T2 can be called the second air inlet structure, and the form of the second air inlet structure is not limited to the above form, as long as it can take in air from the second space S2 and can supply air to the air inlet of the air supply component 23a and the air inlet of the air supply component 23b.

[0038] Among them, the airflow driving component 25a and the airflow driving component 25b constitute an airflow driving assembly, and the air duct T5, the airflow driving assembly and the air duct T4 exemplarily form a first air circulation system, which can suck the air in the first space S1 into the heat exchange module 20, and use the evaporator 24 and other components that can cool the air to cool the air sucked out from the first space S1, and then send the cooled air back to the first space S1, and the air in the first space S1 completes a cycle.

[0039] Furthermore, the air supply component 23a and the air supply component 23b form an air supply assembly. The air supply assembly including two air supply components (23a and 23b) is merely exemplary. It may also include one or more than three air supply components. The installation method of each air supply component may refer to the air supply component 23a and the air supply component 23b. By adjusting the direction of the air inlet of each air supply component, the second air circulation system can choose to take in air from the second space S2 and / or from the external space. For example, when a heat dissipation device is installed separately for the second space S2 (for details, please refer to Figure 1 , remove the auxiliary installation door 16d on the cabinet door 16 to form an exhaust window, and install an air conditioner in the position of the exhaust window to cool the second space S2). The air supply component 23a and the air supply component 23b do not need to dissipate heat for the second space S2, but can directly take air from the external space; when the second space S2 is heated more, the air inlets of the air supply component 23a and the air supply component 23b are both connected to the second space S2, thereby improving the heat dissipation efficiency of the second space S2; Figure 6 Express Figure 1 Cross-sectional view in CC direction, please refer to Figure 6 When both the first space S1 and the second space S2 need to dissipate heat, the air supply component 23a and the air supply component 23b can take air from the external space, and the other can take air from the second space S2, thereby taking into account the heat dissipation of the first space S1 and the second space S2; and when the air supply assembly includes three or more air supply components, the ratio of the air supply components taking air from the external space and the air supply components taking air from the second space S2 can also be determined according to the heat dissipation requirements of the first space S1 and the second space S2. For example, when the first space S1 needs better heat dissipation, more air supply components are used to take air from the external space; when the second space S2 needs better heat dissipation, more air supply components are used to take air from the second space S2.

[0040] exist Figures 1 to 6 In the corresponding embodiment, the first air circulation system and the second air circulation system exchange heat through the interconnected evaporator 24 and condenser 22. This is merely exemplary, and heat exchange can also be achieved through other methods such as partition wall heat exchangers.

[0041] Figure 7 Expressed Figure 6 A variation of the heat exchange module 20 is shown, see Figure 7 , Figure 7 and Figure 6The difference is that an auxiliary air inlet structure 28 is added, and the auxiliary air inlet structure 28 is installed on the first side wall 21a. The air duct T1" is a part of the first air inlet structure, which passes through the auxiliary air inlet structure 28 and the first side wall 21a in sequence, and is used to connect the air inlet of the air supply component 23b with the external space; and an air duct T6 is added, which passes through the gap between the air supply component 23b and the connecting wall 21f and the auxiliary air inlet structure 28 in sequence from the vent d4 to be connected with the air outlet of the air duct T1". The air duct T6 and the air duct T2 share an air inlet (vent d4), and can also have a separate air inlet connected to the second space S2. When the air inlet of the air supply component 23b is connected to the air duct T1", the air supply component 23b is simultaneously connected through the air duct d4. The air inlet of duct T6 is from the second space S2, taking into account both the cooling efficiency of the first space S1 and the heat dissipation of the second space S2. Moreover, since the heat dissipation demand of the second space S2 is relatively small, the air volume of duct T6 is smaller than the air volume of any one of duct T1" and duct T1'. The "air volume" here refers to the volume of air passing through a cross section per unit time. For example, the area of ​​the smallest cross section of duct T6 can be made smaller than the area of ​​the smallest cross section of duct T1". However, the aforementioned form of connecting the air outlet of duct T6 with duct T1" by adding an auxiliary air inlet structure 28 is merely exemplary. It is sufficient as long as a third air inlet structure can be used to connect the second space S2 with the air outlet of the first air inlet structure, and the air volume of the third air inlet structure can be smaller than the air volume of the first air inlet structure.

[0042] above Figures 1 to 7 In the corresponding embodiments, the air supply components (23a, 23b) are flipped over to allow the air supply components (23a, 23b) to take in air from the external space or the second space S2. However, this is merely exemplary. As long as the air supply components in the second air circulation system are in the first state, the air inlet of the air supply components can be connected to the air outlet of the first air inlet structure, and air can be taken in from the external space through the first air inlet structure. When the air supply components are in the second state, the air inlet of the air supply components is connected to the air outlet of the second air inlet structure, and the second air inlet structure is used to take in air from the second space. In other cases, the air outlet of the third air inlet structure can also be connected to the air outlet of the first air inlet structure, and when the first air inlet structure is used to take in air from the external space, the third air inlet structure can be used to take in air from the second space S2 at the same time. For example, the second air circulation system can also be in the following form.

[0043] Figure 8 : shows a partial structural diagram of another second air circulation system in a cabinet provided in an embodiment of the present application. Figure 9 Express Figure 8 Please combine the cross-sectional view of the DD direction with Figure 8 and Figure 9The second air circulation system includes a limiting shell 29, an air supply component 23c, a first air inlet structure, a second air inlet structure and an air outlet structure. The limiting shell 29 has a first limiting wall 29a and a second limiting wall 29b that are relatively arranged; the selection of the air supply component 23c can refer to the same structure of the air supply component 23a mentioned above. If a centrifugal fan is selected, the air supply component 23c is arranged between the first limiting wall 29a and the second limiting wall 29b, and can be switched between the first position K1 and the second position K2 along the PQ direction, and the air inlet of the air supply component 23c faces the first limiting wall 29a. The first limiting wall 29a has vents d5 and vents d6 arranged side by side along the PQ direction, wherein the vent d5 is connected to the external space through the first air inlet structure, and the vent d6 is connected to the second space of the cabinet through the second air inlet structure. When the air supply component 23c is in the first position K1 (also called the air supply component 23c is in the first state), the air inlet of the air supply component 23c is arranged relative to and connected to the vent d5. When the air supply component 23c is in the second position K2 (also called the air supply component 23c is in the second state), the air inlet of the air supply component 23c is arranged relative to and connected to the vent d6, so that the air inlet of the second air circulation system can be selectively connected to the external space or the second space of the cabinet. The top of the limiting shell 29 has an air outlet, and the air outlet at the top of the limiting shell is connected to the external space through the air outlet structure, and the air outlet structure exchanges heat with the first air circulation system through the heat exchange structure. Figure 8 In the corresponding embodiment, relative to Figures 1 to 7 The corresponding embodiment is only to switch the air inlet of the second air circulation system between the external space and the second space by flipping the air supply component, and is replaced by sliding the air supply component in a straight line direction to switch the air inlet of the second air circulation system between the external space and the second space. Other structures of the cabinet can refer to Figures 1 to 7 Corresponding embodiments, such as the specific structures of the first air inlet structure, the second air inlet structure and the air outlet structure, as well as the heat exchange form between the air outlet structure and the first air circulation system.

[0044] In addition to switching the air supply component between the first state and the second state so that the air inlet of the air supply component can be selectively connected to the external space or the second space, the following forms can also be adopted.

[0045] Figure 10 The diagram shows a partial structure of another second air circulation system in the cabinet provided in the embodiment of the present application, with reference to FIG. Figure 10The second air circulation system includes an air supply component 23d, an air collecting hood R1, a first air inlet structure G1, a second air inlet structure G2 and an air outlet structure G3. The air supply component 23d can be a centrifugal fan or an axial fan. The air outlets of the first air inlet structure G1 and the second air inlet structure G2 are illustratively connected to the air inlet of the air collecting hood R1. The air outlet of the air collecting hood R1 is covered on the air inlet of the air supply component 23d. The air outlet of the air supply component 23d is connected to the external space through the air outlet structure G3, and the air outlet structure G3 exchanges heat with the first air circulation system. Figure 10 In the embodiment, the first air inlet structure G1, the second air inlet structure G2, and the air outlet structure G3 are arranged in the form of ducts. The first air inlet structure G1 and the second air inlet structure G2 are respectively provided with valves F1 and F2 to control the opening and closing of the first air inlet structure G1 and the second air inlet structure G2. When valve F1 is open and valve F2 is closed, the air inlet of the air supply component 23d communicates with the external space through the first air inlet structure G1. When valve F1 is closed and valve F2 is open, the air inlet of the air supply component 23d communicates with the second space of the cabinet through the second air inlet structure G2. Alternatively, when valves F1 and F2 are opened simultaneously, the air inlet of the air supply component 23d communicates with both the external space and the second space. However, this is only for example. The first air inlet structure, the second air inlet structure and the air outlet structure may also adopt the form adopted by the structure of the same name mentioned above. The first air circulation system also has a first switch (such as the aforementioned valve F1, or a windshield that can be inserted into the first air inlet structure) that controls the on / off of the first air inlet structure, and a second switch (such as the aforementioned valve F2, or a windshield that can be inserted into the second air inlet structure) that controls the on / off of the second air inlet structure. Figures 1 to 7 Corresponding embodiments.

[0046] In each of the above embodiments, the second air circulation system has a first air inlet structure and a second air inlet structure, and controls the air inlet of the second air circulation system to take air from the external space or the second space, or to take air from the external space and the second space at the same time, by respectively controlling whether the first air inlet structure and the second air inlet structure supply air to the air supply component. However, this is only exemplary, as long as the air outlet of the second air circulation system can be connected to the external space, and the air inlet of the second air circulation system can be selectively connected to the external space and / or the second space. For example, each air supply component in the air supply component is still connected to the external space through the air outlet structure, while the air inlet of each air supply component in at least some of the air supply components is connected to one end of the hose, and the air inlet at the other end of the hose can be selected to be exposed to the external space or inserted into the second space according to needs.

[0047] Furthermore, the air supply component may not only be arranged outside the air duct, but may also be arranged inside one or several air ducts, and may also drive the airflow to flow along the corresponding directions in the aforementioned embodiments.

[0048] Based on the same technical concept, an embodiment of the present application further provides a heat exchange module, which is applied to the cabinet provided in any of the above embodiments.

[0049] The heat exchange module has a first air circulation system and a second air circulation system for exchanging heat with the first air circulation system; wherein, the air inlet and air outlet of the first air circulation system are both used to communicate with the first space of the cabinet; the air outlet of the second air circulation system is connected to the external space, and the air inlet of the second air circulation system can be selectively used to communicate with the external space or the second space of the cabinet, or, to communicate with the first space and the second space at the same time.

[0050] by Figure 2 and Figure 3 For example, the first air circulation system includes air duct T5, air supply component 23a, and air duct T4. Air supply component T5 drives the air in the first space S1 through air duct T5 into air duct T4, and then returns to the first space S1 after being cooled by evaporator 24. The second air circulation system includes air duct T1, air duct T2, air supply component 23a, and air duct T3. By flipping air supply component 23a, it is possible to choose whether to let air from the external space or from the second space. The air discharged by air supply component 23a reaches air duct T3. In addition, the air in air duct T3 cools the condenser 22, and the condenser 22 and evaporator 24 are connected through a liquid pipeline for heat exchange, thereby realizing heat exchange between the first air circulation system and the second air circulation system. This is merely exemplary. Other possible implementations of the heat exchange module can refer to the specific form of the heat exchange module 20 in the cabinet provided in any of the above embodiments.

[0051] It should be noted that, in the aforementioned embodiments, directional words such as “upper” and “lower” are only used with reference to the accompanying drawings for the purpose of facilitating understanding of the technical solutions.

[0052] In addition, the components in the drawings of the embodiments of the present application are only intended to illustrate the working principles of the heat exchangeable module or cabinet, and do not truly reflect the actual size relationships of the components.

[0053] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A heat exchange module, applied to a cabinet, the cabinet comprising a cabinet body, the cabinet body having a first space and a second space, the second space having an air inlet, characterized in that: The heat exchange module comprises a first air circulation system and a second air circulation system for exchanging heat with the first air circulation system; wherein the air inlet and the air outlet of the first air circulation system are both used to communicate with the first space; The air outlet of the second air circulation system is in communication with the external space, and the air inlet of the second air circulation system is selectively used to communicate with the external space and / or the second space; The second air circulation system includes an air supply assembly, a first air inlet structure, a second air inlet structure and an air outlet structure, and the air supply assembly includes at least one air supply component; wherein, The air outlet of each air supply component is connected to the external space through the air outlet structure; The air inlet of each of the air supply components can be selectively connected to the external space through the first air inlet structure, or connected to the second space through the second air inlet structure; The second air circulation system further includes a third air inlet structure, the air inlet of the third air inlet structure is used to communicate with the second space, and the air outlet of the third air inlet structure is communicated with the air outlet of the first air inlet structure.

2. The heat exchange module according to claim 1, characterized in that: When each of the air supply components is in the first state, the air inlet of the air supply component is connected to the air outlet of the first air inlet structure; When each of the air supply components is in the second state, the air inlet of the air supply component is communicated with the air outlet of the second air inlet structure.

3. The heat exchange module according to claim 2, characterized in that: The air outlet of the first air inlet structure is arranged opposite to the air outlet of the second air inlet structure, and each of the air supply components is located between the air outlet of the first air inlet structure and the air outlet of the second air inlet structure; When the air supply component is in the first state, the air inlet of the air supply component is arranged opposite to the air outlet of the first air inlet structure; When the air supply component is in the second state, the air inlet of the air supply component is arranged opposite to the air outlet of the second air inlet structure.

4. The heat exchange module according to claim 3, characterized in that: The air inlet direction of each air supply component is perpendicular to the air outlet direction; The air inlet of the air outlet structure is arranged opposite to the gap between the air outlet of the first air inlet structure and the air outlet of the second air inlet structure; When each of the air supply components is in the first state and the second state, the air outlet of the air supply component is arranged opposite to the air inlet of the air outlet structure.

5. The heat exchange module according to claim 4, characterized in that: The air outlet of the first air inlet structure and the air outlet of the second air inlet structure are arranged side by side and face the same direction; Each of the air supply components can slide along the arrangement direction of the air outlet of the first air inlet structure and the air outlet of the second air inlet structure.

6. The heat exchange module according to any one of claims 1 to 5, characterized in that: Each of the air supply components is a centrifugal fan.

7. The heat exchange module according to claim 1, characterized in that: The air outlet of the first air inlet structure and the air outlet of the second air inlet structure are both connected to the air inlet of each of the air supply components; The first air inlet structure is provided with a first switch for controlling the on and off of the first air inlet structure, and the second air inlet structure is provided with a second switch for controlling the on and off of the second air inlet structure.

8. The heat exchange module according to claim 1, characterized in that: The air volume of the third air inlet structure is smaller than the air volume of the first air inlet structure.

9. A cabinet, characterized in that: The cabinet comprises a cabinet body and a heat exchange module according to any one of claims 1 to 8; wherein, The cabinet has a first space and a second space, and the second space has an air inlet; The air inlet and the air outlet of the first air circulation system are both connected to the first space; The air inlet of the second air circulation system can be selectively connected to the external space and / or the second space.

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