A cooling unit and energy storage container

Abstract

The application provides a cooling unit and an energy storage container. The cooling unit comprises a shell, a first cavity and a second cavity; a volute fan arranged in the first cavity and comprising a volute and an impeller; the rotation axis of the impeller is perpendicular to the bottom wall of the first cavity; and a heat exchanger is arranged in the second cavity in an inclined manner and divides the second cavity into an air inlet space and an air outlet space, so that the airflow flowing into the air inlet space flows into the air outlet space after obliquely passing through the heat exchanger. In this way, the contact area of the airflow and the heat exchanger is increased, the heat exchange efficiency is improved, the airflow circulation path is prolonged, the airflow flows smoothly, the noise and vibration are reduced, the volute fan is used, the air duct design is optimized, the rotation axis of the impeller is perpendicular to the bottom wall of the first cavity, the rotary motor for driving the rotation of the impeller is arranged on the bottom wall of the first cavity, the structure of the volute fan is more compact, multiple volute fans can be arranged in parallel without gaps, and the compactness of the cooling unit is ensured.

Description

Technical Field

[0001] This application relates to the field of cooling equipment technology, specifically to a cooling unit, and also to an energy storage container including the aforementioned cooling unit. Background Technology

[0002] The cooling unit promotes airflow through a fan assembly, enabling rapid and efficient heat exchange between the external airflow and the refrigerant inside the heat exchanger. In developing this application, the inventors discovered at least the following technical problems in the prior art: The existing fan assembly has an unreasonable duct design, resulting in poor airflow, significant noise and vibration, and affecting system stability. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a cooling unit that at least solves the problem of excessive noise and vibration generated by the fan assembly.

[0004] Another objective of this application is to provide an energy storage container that includes the aforementioned cooling unit.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A cooling unit, comprising:

[0007] The housing includes a first cavity and a second cavity distributed along a first direction, wherein the wall surrounding the first cavity forms an air inlet surface;

[0008] A volute fan, disposed in the first cavity, includes a volute and an impeller; the rotation axis of the impeller is perpendicular to the bottom wall of the first cavity; an air inlet is formed on the top wall of the volute, and an air outlet is formed on the circumferential wall of the volute;

[0009] A heat exchanger is inclinedly disposed in the second chamber and the second chamber is divided into an air inlet space and an air outlet space, so that the airflow flowing into the air inlet space flows obliquely through the heat exchanger and then into the air outlet space; the air inlet space is connected to the air outlet, and the wall of the air outlet space forms an air outlet surface;

[0010] Wherein, the first direction is perpendicular to the rotation axis.

[0011] Optionally, in the above-mentioned cooling unit, the circumferential wall of the volute includes a spiral portion and an air outlet portion communicating with the opening of the spiral portion; the opening of the air outlet portion away from the spiral portion is the air outlet.

[0012] The formula for the helix of the spiral section is: r = r0 + (Δr / ΔΦ)Φ.

[0013] Optionally, in the above-mentioned cooling units,

[0014] The arc angle of the spiral part is θ, and 5π / 6≤θ≤7π / 6;

[0015] 8cm≤r0≤15cm;

[0016] 3 / π≤ΔΦ / Δr≤9 / π.

[0017] Optionally, in the above-mentioned cooling unit, along the first direction, the heat exchanger includes a first end and a second end;

[0018] The first end is located at the top of the air outlet; the second end is inclined relative to the first end toward the bottom wall of the second cavity, so that the height of the first end is greater than the height of the second end, and the second end extends to the side wall of the second cavity away from the first cavity.

[0019] Optionally, in the above-mentioned cooling unit, the heat exchanger is provided with a first baffle fixed to the second cavity at both ends along the second direction, and the heat exchanger is supported and fixed to the first baffle; the second direction is perpendicular to the first direction and the rotation axis respectively;

[0020] The two first baffles, the bottom wall of the second cavity, and the bottom wall of the heat exchanger form the air inlet space.

[0021] Optionally, in the above-mentioned cooling unit, a plurality of support rods parallel to the second direction are connected between the two first baffles.

[0022] Optionally, in the above-mentioned cooling unit, the heat exchanger is provided with a second baffle at both ends along the second direction, the second baffle abuts against the heat exchanger and is fixed in the second cavity;

[0023] The two second baffles, the side wall of the second cavity away from the first cavity, the top wall of the second cavity, and the top wall of the heat exchanger form the air outlet space.

[0024] Optionally, in the above-mentioned cooling unit, the cooling unit includes a limiting member; the second baffle includes a limiting part, which can limit itself to the limiting member.

[0025] Optionally, in the above-mentioned cooling units,

[0026] Along the second direction, multiple volute fans are provided, and the air outlets of the volute fans are spliced ​​together without gaps.

[0027] And / or,

[0028] The housing includes an outer shell with a top opening and a cover plate that seals the top opening;

[0029] And / or,

[0030] The top of the cooling unit is equipped with lifting lugs.

[0031] An energy storage container includes a cooling unit for exchanging heat with energy storage batteries in an energy storage system; the cooling unit is the cooling unit described above.

[0032] As can be seen from the above technical solution, the cooling unit provided in this application includes a shell, a volute fan, and a heat exchanger; the shell includes a first cavity and a second cavity distributed along a first direction, and the wall of the first cavity forms an air inlet surface; the volute fan is disposed in the first cavity and includes a volute and an impeller; the rotation axis of the impeller is perpendicular to the bottom wall of the first cavity; the top wall of the volute forms an air inlet, and the circumferential wall of the volute forms an air outlet; the heat exchanger is inclinedly disposed in the second cavity and divides the second cavity into an air inlet space and an air outlet space, so that the airflow flowing into the air inlet space flows obliquely through the heat exchanger and then into the air outlet space; the air inlet space is connected to the air outlet and the two are sealed together, and the wall of the air outlet space forms an air outlet surface; wherein, the first direction is perpendicular to the rotation axis.

[0033] First, the casing of this application is divided into a first cavity and a second cavity, realizing the separate arrangement of the volute fan and the heat exchanger in the first and second cavities, respectively. As shown above, after the airflow is pressurized and accelerated by the volute fan in the first cavity, it flows through the second cavity to exchange heat with the refrigerant in the heat exchanger. The airflow flows between the first and second cavities, which to some extent prolongs the airflow path within the casing, helps to stabilize the airflow, and reduces noise and vibration.

[0034] Secondly, the heat exchanger of this application is inclined within the second chamber, dividing the second chamber into an inlet space and an outlet space. Airflow into the inlet space can only flow into the outlet space after passing through the heat exchanger. As described above, this ensures that the airflow passes through the heat exchanger at an angle (not vertically), effectively increasing the contact area between the airflow and the heat exchanger, which is beneficial for improving heat exchange efficiency. On the other hand, it restricts the airflow path, allowing the airflow to pass only from the side of the heat exchanger closest to the inlet space to the side closest to the outlet space. This not only ensures the airflow rate through the heat exchanger, ensuring full contact between the airflow and the heat exchanger without any dead zones, further improving heat exchange efficiency, but also extends the airflow path in the second chamber, contributing to a stable airflow effect and further reducing noise and vibration.

[0035] Secondly, this application uses a volute fan with a gradually increasing outlet diameter to effectively guide the airflow from the impeller along a predetermined path, reducing turbulence and resistance, thereby reducing noise and vibration and improving the efficiency and performance of the cooling unit.

[0036] Finally, it should be emphasized that the rotation axis of the impeller of the volute fan is perpendicular to the bottom wall of the first chamber; as above, this facilitates the installation of the rotary motor that drives the impeller to rotate on the bottom wall of the first chamber, thereby making the structure of the volute fan more compact and making it possible to arrange multiple volute fans 2 in parallel without gaps, thus ensuring the structural compactness of the cooling unit.

[0037] This application also provides an energy storage container, which includes any of the above-mentioned cooling units. Since the above-mentioned cooling units have the above-mentioned effects, the energy storage container with the above-mentioned cooling units has the same effects, so it will not be described again here. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0039] Figure 1 A perspective view of the cooling unit provided in the embodiments of this application;

[0040] Figure 2 for Figure 1 A sectional view;

[0041] Figure 3 This is a schematic diagram of the cooling unit with the cover plate removed, provided in an embodiment of this application.

[0042] Figure 4 for Figure 3 Top view;

[0043] Figure 5 This is a schematic diagram of the volute structure provided in an embodiment of this application;

[0044] Figure 6 A dimensioned drawing of one embodiment of the volute provided in this application.

[0045] Figure 7 An exploded view of the cooling unit provided in the embodiments of this application.

[0046] exist Figure 1-7 middle:

[0047] 1. Shell; 2. Volute fan; 3. Heat exchanger; 4. First baffle; 5. Second baffle; 6. Limiting component; 7. Support rod; 8. Reinforcing rod; 9. Lifting lug;

[0048] 11. First cavity; 12. Second cavity; 13. Outer shell; 14. Cover plate;

[0049] 21. Volute; 22. Impeller;

[0050] 31. First end; 32. Second end; 33. First flange; 34. Fourth flange;

[0051] 41. First bonding part; 42. Second bonding part; 43. Third bonding part;

[0052] 51. Fourth fitting part; 52. Limiting part; 53. Fifth fitting part; 54. Sixth fitting part;

[0053] 111. Air intake side;

[0054] 121. Air intake space; 122. Air outlet space; 123. Air outlet surface;

[0055] 211. Air inlet; 212. Air outlet; 213. Spiral section; 214. Air outlet section; 215. Third flange. Detailed Implementation

[0056] This application provides a cooling unit and an energy storage container, which solves the problem of excessive noise and vibration generated by the fan components.

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0058] like Figures 1-7 As shown in the figure, this application provides a cooling unit, which includes a casing 1, a volute fan 2, and a heat exchanger 3. Please refer to the appendix. Figure 2-3 The housing 1 includes a first cavity 11 and a second cavity 12 distributed along a first direction. The wall surrounding the first cavity 11 forms an air inlet surface 111. A volute fan 2 is disposed in the first cavity 11, and the volute fan 2 includes a volute 21 and an impeller 22. The rotation axis of the impeller 22 is perpendicular to the bottom wall of the first cavity 11. (See attached diagram.) Figure 5 The top wall of the volute 21 has an air inlet 211, and the circumferential wall of the volute 21 has an air outlet 212. Please refer to the appendix. Figure 2 The heat exchanger 3 is inclinedly disposed in the second chamber 12, which is divided into an air inlet space 121 and an air outlet space 122, so that the airflow flowing into the air inlet space 121 passes obliquely through the heat exchanger 3 and then flows into the air outlet space 122. The air inlet space 121 is connected to the air outlet 212, and the air inlet space 121 and the air outlet 212 are sealed together; the wall of the air outlet space 122 forms an air outlet surface 123. The first direction is perpendicular to the rotation axis.

[0059] It should be noted that this cooling unit can serve as an outdoor heat exchange structure for the thermal management system. The thermal management system equipped with the aforementioned cooling unit can be used to exchange heat with the energy storage batteries in the energy storage system; wherein, refrigerant flows into the indoor heat exchange structure and exchanges heat with the energy storage batteries, while refrigerant flows into the outdoor cooling unit and exchanges heat with the airflow in the outside atmosphere.

[0060] The first direction is attached. Figure 3 The direction indicated by the middle arrow. The location of the rotation axis is shown in the appendix. Figure 3 The location is indicated by the dashed line. The air inlet surface 111 includes an air inlet grille; the air outlet surface 123 includes an air outlet grille.

[0061] Furthermore, the air inlet space 121 and the air outlet space 122 are connected only through the heat exchanger 3, while the areas of the air inlet space 121 and the air outlet space 122 other than the heat exchanger 3 are not connected, in order to ensure the airflow through the heat exchanger 3. The heat exchanger 3 is a tube-fin heat exchanger, which acts as a condenser when cooling the energy storage battery of the photovoltaic system, and as an evaporator when heating the energy storage battery of the photovoltaic system.

[0062] "The airflow is inclined through the heat exchanger 3" means that the airflow is not perpendicular to the heat exchanger 3, but has an angle with the heat exchanger 3 that is not 90°; in this way, the contact area between the airflow and the heat exchanger 3 is effectively increased.

[0063] Please see the appendix Figure 2 The airflow path of the cooling unit is as follows: air inlet 111 → air inlet 211 of volute fan 2 → air outlet 212 of volute fan 2 → air inlet space 121 → heat exchanger 3 → air outlet space 122 → air outlet 123.

[0064] First, the housing 1 of this application is divided into a first cavity 11 and a second cavity 12, realizing the partitioned arrangement of the volute fan 2 and the heat exchanger 3 in the first cavity 11 and the second cavity 12, respectively. As shown above, after the airflow is pressurized and accelerated by the volute fan 2 in the first cavity 11, it flows through the second cavity 12 to exchange heat with the refrigerant in the heat exchanger 3. The airflow flows between the first cavity 11 and the second cavity 12, which to a certain extent prolongs the airflow path in the housing 1, which helps to stabilize the airflow and reduces noise and vibration.

[0065] Secondly, the heat exchanger 3 of this application is inclinedly arranged in the second cavity 12, dividing the second cavity 12 into an air inlet space 121 and an air outlet space 122. The airflow flowing into the air inlet space 121 can only flow into the air outlet space 122 after passing through the heat exchanger 3. As described above, on the one hand, it ensures that the airflow passes through the heat exchanger 3 at an incline (not vertical), effectively increasing the contact area between the airflow and the heat exchanger 3, which is beneficial to improving heat exchange efficiency; on the other hand, it restricts the airflow path, so that the airflow can only pass through the side surface of the heat exchanger 3 near the air inlet space 121 and the side surface of the heat exchanger 3 near the air outlet space 122. This not only ensures the airflow through the heat exchanger 3, allowing the airflow to fully contact the heat exchanger 3 without heat exchange dead zones, further improving heat exchange efficiency, but also extends the airflow path in the second cavity 12, which helps to stabilize the airflow and further reduce noise and vibration.

[0066] Secondly, this application selects a volute fan 2, and the outlet diameter of the volute 21 gradually increases to effectively guide the airflow from the impeller 22 to flow along a predetermined path, reduce turbulence and resistance, thereby reducing noise and vibration, and improving the efficiency and performance of the cooling unit.

[0067] Finally, it should be emphasized that the rotation axis of the impeller 22 of the volute fan 2 is perpendicular to the bottom wall of the first cavity 11. As above, the installation of the rotary motor that drives the impeller 22 to rotate on the bottom wall of the first cavity 11 is convenient, thereby making the structure of the volute fan 2 more compact and making it possible to arrange multiple volute fans 2 in parallel without gaps, thus ensuring the structural compactness of the cooling unit.

[0068] Please see the appendix Figure 5-6 In some embodiments of this application, the circumferential wall of the volute 21 includes a helical portion 213 and an air outlet 214 communicating with the opening of the helical portion 213. The opening of the air outlet 214 away from the helical portion 213 is an air outlet 212. The helix formula of the helical portion 213 is: r=r0+(Δr / ΔΦ)Φ.

[0069] It should be noted that the bottom of the volute 21 is a bottom opening where material is missing; the volute 21 is composed of a circumferential wall and a top wall. The bottom opening of the circumferential wall is the bottom opening of the volute 21, and the top wall is sealed at the top opening of the circumferential wall. A notch is provided on the top wall to form an air inlet 211.

[0070] The combination of the spiral section 213 and the air outlet section 214 simplifies the structural composition of the volute 21 while ensuring effective airflow, making it easier to manufacture and reducing production costs. Furthermore, the spiral section 213 conforms to the design of an Archimedean spiral, which is a constant-pitch spiral, meaning that the radius of the spiral section 213 increases at a constant rate as the arc angle increases. This creates a smooth airflow path, making the airflow within the volute 21 smoother and more evenly distributed, improving airflow stability and uniformity, reducing turbulence and vortex formation, and thus reducing airflow impact and collision within the volute 21, thereby reducing noise and vibration. Simultaneously, the smooth airflow path reduces resonance, further lowering noise and vibration.

[0071] In some embodiments of this application, the arc angle of the helical portion 213 is θ, where 5π / 6 ≤ θ ≤ 7π / 6; for example, θ can be any one of 5π / 6, π, 7π / 6, etc. In the helix formula of the helical portion 213, the value range of Φ is 0 ≤ Φ ≤ θ, that is, the domain of the helix formula is [0, θ]. r0 is the initial radius of the helical portion, where 8cm ≤ r0 ≤ 15cm; for example, r0 can be any one of 8cm, 9cm, 10cm, 11cm, 12cm, 13cm, 14cm, 15cm, etc. ΔΦ / Δr is the rate of increase of the radius of the helical portion as the angle increases, where 3 / π ≤ ΔΦ / Δr ≤ 9 / π; for example, the rate of increase can be any one of 3 / π, 5 / π, 6 / π, 7 / π, 9 / π, etc.

[0072] Please see the appendix Figure 6 Preferably, θ = π, r 0＝ 11cm, ΔΦ / Δr=6 / π. From the above, we can see that the initial radius of the spiral part 213 is 11cm. For every π / 6 (30°) increase in the arc angle of the spiral part 213, the radius increases by 1cm. That is, the radius of the spiral part 213 at the arc angle π / 6 (30°) is 12cm, at the arc angle π / 3 (60°) is 13cm, at the arc angle π / 2 (90°) is 14cm, at the arc angle 2π / 3 (120°) is 15cm, at the arc angle 5π / 6 (150°) is 16cm, and at the arc angle π (180°) is 17cm.

[0073] As mentioned above, the air duct design of the volute 21 has been optimized, which conforms to the Archimedes spiral principle and can reduce wind noise and the generation of airflow eddies, thereby reducing noise and vibration.

[0074] Please see the appendix Figure 2-3In some embodiments of this application, along a first direction, the heat exchanger 3 includes a first end 31 and a second end 32. The first end 31 is located at the top of the air outlet 212. The second end 32 is inclined relative to the first end 31 towards the bottom wall of the second cavity 12, such that the height of the first end 31 is greater than the height of the second end 32, and the second end 32 extends to the side wall of the second cavity 12 away from the first cavity 11.

[0075] It should be noted that the first end 31 is located at the top of the air outlet 212, and the airflow flowing out of the air outlet 212 will not diffuse outward through the top of the first end 31. The second end 32 is sealed to the side wall of the second cavity 12 away from the first cavity 11; as above, it is ensured that the airflow flowing into the air inlet space 121 can only flow into the air outlet space 122 after passing through the heat exchanger 3, thus ensuring the airflow rate through the heat exchanger 3.

[0076] As described above, the heat exchanger 3 is positioned at an angle in the second chamber 12. The heat exchanger 3 gradually slopes downwards from its first end 31 near the first chamber 11 to its second end 32 away from the first chamber 11. Since the side of the second chamber 12 away from the first chamber 11 is a solid sidewall, this sidewall can limit and resist the downward slope of the second end 32, making the angled arrangement of the heat exchanger 3 within the second chamber 12 more stable and preventing misalignment. Furthermore, the angled arrangement of the heat exchanger 3 in the second chamber 12 places the air inlet space 121 below the air outlet space 122, thus limiting the airflow to pass through the heat exchanger 3 from bottom to top. This reduces the resistance encountered by the airflow during circulation, resulting in a more uniform and stable airflow.

[0077] Please see the appendix Figure 2 It should be further noted that at least a portion of the sidewall of the first cavity 11 away from the second cavity 12 is provided with an air inlet grille to form an air inlet surface 111; at least a portion of the top wall of the second cavity 12 is provided with an air outlet grille to form an air outlet surface 123. As described above, this further increases the number of bends in the airflow path, effectively extending the airflow path.

[0078] Furthermore, the heat exchanger 3 is diagonally disposed in the second cavity 12, and the angle between the heat exchanger 3 and the rotating shaft is determined by the spatial volume of the second cavity 12. Optionally, the angle between the second cavity 12 and the rotating shaft is 30°-60°; for example, the angle between the second cavity 12 and the rotating shaft can be at least one of 30°, 40°, 50°, 60°, etc.

[0079] In some parallel embodiments, the first end 31 is located at the bottom of the air outlet 212; the second end 32 is inclined relative to the first end 31 towards the top wall of the second cavity 12, such that the height of the second end 32 is greater than the height of the first end 31, and the second end 32 extends to the side wall of the second cavity 12 away from the first cavity 11. As described above, the air inlet space 121 is located above the air outlet space 122, thus defining the airflow as passing through the heat exchanger 3 from top to bottom.

[0080] Please see the appendix Figure 3 In some embodiments of this application, the heat exchanger 3 is provided with first baffles 4 fixed to the second cavity 12 at both ends along the second direction, and the heat exchanger 3 is supported and fixed to the first baffles 4. The second direction is perpendicular to the first direction and the rotation axis. The two first baffles 4, the bottom wall of the second cavity 12, and the bottom wall of the heat exchanger 3 form an air inlet space 121.

[0081] It should be noted that the first baffle 4 can be a triangular support plate to provide stable support for the heat exchanger 3.

[0082] As described above, the specific location of the first baffle 4 is defined. The two first baffles 4 can not only provide reliable and stable support for the heat exchanger 3, but also form a wall around the air inlet space 121, which restricts the airflow path.

[0083] Please see the appendix Figure 7 In some embodiments, a first fitting portion 41 is provided on the top of the first baffle 4; correspondingly, a first flange 33 extends outward from the side of the heat exchanger 3 along the second direction. Optionally, the first fitting portion 41 is formed by at least a portion of the top wall of the first baffle 4 and the side wall of the first baffle 4 away from the other first baffle 4, and the first fitting portion 41 is L-shaped; correspondingly, the first flange 33 is L-shaped and covers the first fitting portion 41. Further, the first flange 33 and the first fitting portion 41 are aligned and fitted, and the first flange 33 and the first fitting portion 41 are sealed and fixedly connected by the first fastener, thereby completing the sealing and fixed connection of the first baffle 4 on the heat exchanger 3.

[0084] Please see the appendix Figure 7 In some embodiments, a second fitting portion 42 is provided at the bottom of the first baffle 4. Optionally, the second fitting portion 42 is a second flange provided on the bottom wall of the first baffle 4. Along the rotation axis, the second fitting portion 42 is aligned and fitted with the bottom wall of the second cavity 12, and the second fastener completes the sealing and fixed connection between the second fitting portion 42 and the bottom wall of the second cavity 12, thereby completing the sealing and fixed connection of the first baffle 4 to the bottom wall of the second cavity 12.

[0085] Please see the appendix Figure 7In some embodiments, a third fitting portion 43 is formed on the side wall of the first baffle 4 near the first cavity 11; correspondingly, a third flange 215 extends outward from the edge of the air outlet 212 near the first baffle 4. Along the first direction, the third flange 215 is aligned and fitted with the third fitting portion 43, and the third flange 215 and the third fitting portion 43 are sealed and fixedly connected by a third fastener, thereby completing the sealing and fixed connection of the first baffle 4 at the air outlet 212.

[0086] Please see the appendix Figure 7 In some embodiments of this application, a plurality of support rods 7 parallel to the second direction are connected between the two first baffles 4. Optionally, support rods 7 are connected between each set of opposite corners of the two first baffles 4; for example, when the first baffle 4 is a triangular support plate, support rods 7 are connected to each of the three sets of opposite corners of the two triangular support plates.

[0087] As described above, this can further enhance the installation and fixing effect of the two first baffles 4 on the bottom wall of the second cavity 12, as well as the reliable and stable support and fixing effect of the first baffles 4 on the heat exchanger 3.

[0088] Please see the appendix Figure 7 Furthermore, a second reinforcing rod 8 perpendicular to the second direction is connected between two adjacent support rods 7.

[0089] Please see the appendix Figure 3 In some embodiments of this application, the heat exchanger 3 is provided with a second baffle 5 at both ends along the second direction. The second baffle 5 abuts against the heat exchanger 3 and is fixed to the second cavity 12. The two second baffles 5, the side wall of the second cavity 12 away from the first cavity 11, the top wall of the second cavity 12, and the top wall of the heat exchanger 3 form an air outlet space 122.

[0090] It should be noted that the top wall of the second baffle 5 is aligned and fitted with the top wall of the second cavity 12. The second baffle 5 can be a triangular support plate to form a stable support on the heat exchanger 3.

[0091] As shown above, the specific location of the second baffle 5 is defined. The second baffle 5 forms a wall that encloses the air outlet space 122, thus restricting the airflow path.

[0092] Please see the appendix Figure 3 The cooling unit includes a limiting member 6. The second baffle 5 includes a limiting part 52, which can limit the limiting member 6.

[0093] As described above, through the limiting cooperation between the limiting part 52 and the limiting member 6, the limiting effect of the second baffle 5 in the second cavity 12 is achieved, and the precise positioning of the second baffle 5 in the second cavity 12 is achieved, which is sealed and fixedly connected.

[0094] Please see the appendix Figure 3 In some embodiments, the limiting member 6 is a limiting rod extending along the second direction, and the limiting member 6 is fixed to the housing 1; the limiting member 6 is located on the side of the second cavity 12 away from the first cavity 11 and close to the top wall of the second cavity 12. The second baffle 5 has a limiting groove with missing material on the side away from the first cavity 11, and the limiting groove is the limiting part 52.

[0095] Along the first direction, the second baffle 5 is pushed into the second cavity 12 from the side closer to the first cavity 11 to the side farther away from the first cavity 11, until the limiting part 52 is locked into the limiting member 6, which indicates that the second baffle 5 is installed in place.

[0096] Please see the appendix Figure 7 In some embodiments, a fourth fitting portion 51 is provided at the bottom of the second baffle 5; correspondingly, a fourth flange 34 extends outward from the side of the heat exchanger 3 along the second direction. Optionally, the fourth fitting portion 51 is a fifth flange provided on the bottom wall of the second baffle 5. Further, the fourth fitting portion 51 and the fourth flange 34 are aligned and fitted together, and the fourth fastener completes the sealing and fixed connection between the fourth fitting portion 51 and the fourth flange 34, thereby completing the sealing and fixed connection of the second baffle 5 on the heat exchanger 3.

[0097] Please see the appendix Figure 7 In some embodiments, the limiting portion 52 includes a first abutting side limited to the limiting member 6, and a fifth fitting portion 53 extends outward from both sides of the first abutting side along the second direction. The fifth fitting portion 53 is aligned and fitted with the limiting member 6, and the fifth fastener completes the sealing and fixed connection between the fifth fitting portion 53 and the limiting member 6, so as to complete the sealing and fixed connection of the second baffle 5 on the limiting member 6.

[0098] Please see the appendix Figure 7 In some embodiments, the sidewall of the second cavity 12 away from the first cavity 11 is the first sidewall; the limiting part 52 includes a second abutting side that abuts against the first sidewall, and a sixth fitting part 54 extends outward from the edge of the second abutting side along the second direction. The sixth fitting part 54 is aligned and fitted with the first sidewall, and the sixth fastener completes the sealing and fixed connection between the sixth fitting part 54 and the first sidewall, thereby completing the sealing and fixed connection of the second baffle 5 to the first sidewall.

[0099] Please see the appendix Figure 3-4 In some embodiments of this application, multiple volute fans 2 are provided along the second direction, and the air outlets 212 of the volute fans 2 are seamlessly connected. Preferably, two volute fans 2 are provided. As described above, the cooling unit integrates multiple volute fans 2, ensuring airflow and increasing heat exchange efficiency.

[0100] Please see the appendix Figure 1The housing 1 includes an outer shell 13 with a top opening and a cover plate 14 that covers the top opening. Furthermore, the cover plate 14 is secured to the outer shell 13 by a fourth fastener. As described above, the cover plate 14 can be removed from the outer shell 13 to facilitate the disassembly, assembly, and maintenance of the components inside the housing 1.

[0101] Please see the appendix Figure 1 The top of the cooling unit is equipped with lifting lugs 9. As shown above, the lifting hook of the lifting equipment can be hooked onto the lifting lugs 9, so the cooling unit can be disassembled, assembled, and transported with the help of the lifting equipment, making the operation convenient and fast.

[0102] This application also provides an energy storage container, which includes a cooling unit for exchanging heat with the energy storage batteries in the energy storage system. This solves the problem of excessive noise and vibration generated by the fan assembly. Its advantages are brought about by the aforementioned cooling unit. For details, please refer to the relevant parts in the above embodiments, which will not be repeated here.

[0103] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0104] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0105] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0106] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0107] It should be understood that the qualifying terms “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0108] The above description has been given for illustrative and descriptive purposes. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A cooling unit, characterized in that, include: The housing (1) includes a first cavity (11) and a second cavity (12) distributed along a first direction, wherein the wall of the first cavity (11) is formed with an air inlet surface (111). A volute fan (2) is disposed in the first cavity (11) and includes a volute (21) and an impeller (22); the rotation axis of the impeller (22) is perpendicular to the bottom wall of the first cavity (11); the top wall of the volute (21) forms an air inlet (211) and the circumferential wall of the volute (21) forms an air outlet (212). The heat exchanger (3) is inclinedly disposed in the second cavity (12) and the second cavity (12) is divided into an air inlet space (121) and an air outlet space (122) so that the airflow flowing into the air inlet space (121) flows obliquely through the heat exchanger (3) and then into the air outlet space (122); the air inlet space (121) is connected to the air outlet (212), and the wall of the air outlet space (122) forms an air outlet surface (123). Wherein, the first direction is perpendicular to the rotation axis; along the first direction, the heat exchanger (3) includes a first end (31) and a second end (32). The first end (31) is located at the top of the air outlet (212); the second end (32) is inclined relative to the first end (31) towards the bottom wall of the second cavity (12) so that the height of the first end (31) is greater than the height of the second end (32), and the second end (32) extends to the side wall of the second cavity (12) away from the first cavity (11); the air inlet space (121) is located below the air outlet space (122); The heat exchanger (3) is provided with a first baffle (4) fixed to the second cavity (12) at both ends along the second direction, and the heat exchanger (3) is supported and fixed to the first baffle (4); the second direction is perpendicular to the first direction and the rotation axis respectively; The two first baffles (4), the bottom wall of the second cavity (12), and the bottom wall of the heat exchanger (3) form the air inlet space (121). The heat exchanger (3) is provided with a second baffle (5) at both ends along the second direction. The second baffle (5) abuts against the heat exchanger (3) and is fixed to the second cavity (12). The two second baffles (5), the side wall of the second cavity (12) away from the first cavity (11), the top wall of the second cavity (12), and the top wall of the heat exchanger (3) form the air outlet space (122). The cooling unit includes a limiting member (6); the second baffle (5) includes a limiting part (52), which is capable of being limited by the limiting member (6).

2. The cooling unit according to claim 1, characterized in that, The circumferential wall of the volute (21) includes a spiral part (213) and an air outlet (214) communicating with the opening of the spiral part (213); the opening of the air outlet (214) away from the spiral part (213) is the air outlet (212). The spiral formula of the spiral part (213) is: r=r0+(Δr / ΔΦ)Φ.

3. The cooling unit according to claim 2, characterized in that, The arc angle of the spiral part (213) is θ, 5π / 6≤θ≤7π / 6; 8cm≤r0≤15cm; 3 / π≤ΔΦ / Δr≤9 / π.

4. The cooling unit according to claim 1, characterized in that, A number of support rods (7) parallel to the second direction are connected between the two first baffles (4).

5. The cooling unit according to any one of claims 1-4, characterized in that, Along the second direction, multiple volute fans (2) are provided, and the air outlets (212) of the volute fans (2) are spliced ​​without gaps; And / or, The housing (1) includes an outer shell (13) with a top opening and a cover plate (14) that covers the top opening. And / or, The top of the cooling unit is equipped with lifting lugs (9).

6. An energy storage container, characterized in that, It includes a cooling unit for exchanging heat with the energy storage battery in the energy storage system; the cooling unit is the cooling unit as described in any one of claims 1-5.

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