Smoke barrier assembly with cooling function and range hood

Abstract

The utility model discloses a smoke barrier assembly with a cooling function and a range hood. The smoke barrier assembly comprises a smoke barrier, a cooling device and a control module, the cooling device is a hollow cavity, and the cavity comprises a first panel and a second panel which are oppositely arranged in the first preset direction; the first panel is arranged on the side, close to the smoke barrier, of the cooling device. The cooling device is detachably connected with the smoke baffle through the first panel; the second panel is arranged on the side, away from the smoke barrier, of the cooling device. A groove is formed in one side, close to the smoke baffle, of the first panel; a control module is arranged in the groove; cooling liquid is arranged in the cavity; the cooling liquid exchanges heat with the smoke baffle through the first panel; and the cooling liquid exchanges heat with the control module through the groove. According to the smoke barrier assembly, the service life of the smoke barrier assembly is prolonged, and the cooling efficiency of the smoke barrier assembly is improved.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a smoke baffle assembly with cooling function and a range hood. Background Technology

[0002] Downdraft range hoods are popular with consumers due to their lower air inlet. The baffle plate usually houses the control module, but because it's close to the heat source, the controller module requires high temperature resistance. Prolonged cooking can also cause the baffle plate to heat up, potentially burning the user's hands and negatively impacting the experience.

[0003] In response to this situation, range hood manufacturers usually have to choose industrial-grade or even automotive-grade components, which results in higher costs. Moreover, prolonged operation in high-temperature environments can also affect the lifespan of the components themselves. Utility Model Content

[0004] To address the technical problems in the background art, this utility model provides a smoke baffle assembly with a cooling function. The assembly includes a smoke baffle, a cooling device, and a control module. The cooling device is a hollow cavity, and the cavity includes a first panel and a second panel arranged opposite to each other along a first preset direction. The first panel is disposed on the side of the cooling device closer to the smoke baffle. The cooling device is detachably connected to the smoke baffle through the first panel. The second panel is disposed on the side of the cooling device away from the smoke baffle.

[0005] The first panel has a groove on the side near the smoke baffle; the control module is disposed in the groove; coolant is disposed in the cavity; the coolant exchanges heat with the smoke baffle through the first panel; and the coolant exchanges heat with the control module through the groove.

[0006] Furthermore, the cavity also includes a third panel and a fourth panel arranged opposite to each other along a second preset direction; the second preset direction is perpendicular to the first preset direction; a first through hole is provided on the side of the third panel near the first panel; a liquid inlet pipe is provided in the first through hole; the liquid inlet pipe is detachably connected to the cooling device through the first through hole.

[0007] Furthermore, a second through hole is provided on the side of the fourth panel near the first panel; a pressure relief device is provided in the second through hole; the pressure relief device is detachably connected to the cooling device through the second through hole.

[0008] Furthermore, the surface of the cooling device is provided with a plurality of through-hole units; the plurality of through-hole units are distributed at equal intervals on the cooling device.

[0009] Furthermore, the through-hole unit includes a third through-hole with a first preset diameter and a fourth through-hole with a second preset diameter; the first preset diameter is larger than the second preset diameter.

[0010] Furthermore, the third through hole is disposed on the side of the third panel close to the second panel.

[0011] Furthermore, the fourth through hole is disposed on the side of the fourth panel close to the second panel.

[0012] Furthermore, the cavity is provided with multiple ventilation ducts; the multiple ventilation ducts are distributed at equal intervals within the cooling device.

[0013] Furthermore, the end of the ventilation duct near the third panel passes through the third through hole; the end of the ventilation duct near the fourth panel passes through the fourth through hole.

[0014] This utility model also provides a range hood, which includes the smoke baffle assembly described above.

[0015] The beneficial effects of this utility model are:

[0016] This utility model discloses a smoke baffle assembly and range hood with cooling function, comprising a smoke baffle, a cooling device, and a control module. The cooling device is a hollow cavity, comprising a first panel and a second panel arranged opposite to each other along a first preset direction. The first panel is located on the side of the cooling device closer to the smoke baffle. The cooling device is detachably connected to the smoke baffle via the first panel. The second panel is located on the side of the cooling device away from the smoke baffle. A groove is provided on the side of the first panel closer to the smoke baffle. The control module is disposed within the groove. Coolant is disposed within the cavity. The coolant exchanges heat with the smoke baffle through the first panel and with the control module through the groove. This invention, by setting up a smoke baffle assembly comprising a smoke baffle, a control module, and a cooling device, ensures that when the control module generates heat during operation, both the control module and the smoke baffle come into contact with the cooling device, thereby exchanging heat with the coolant within the cooling device. This achieves cooling of the control module and the smoke baffle, reduces the temperature variation between the smoke baffle and the control module, extends the service life of the smoke baffle assembly, and improves the cooling efficiency and reliability of the smoke baffle assembly. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional schematic diagram of a smoke baffle assembly with cooling function provided by this utility model;

[0019] Figure 2 This is a schematic diagram of a cooling device provided by this utility model;

[0020] Figure 3 The middle part is a schematic diagram of the back of a cooling device provided by this utility model;

[0021] Figure 4 The middle section is a front cross-sectional schematic diagram of a cooling device provided by this utility model;

[0022] Figure 5 This is a top cross-sectional view of a cooling device provided by this utility model;

[0023] Figure 6 This is a schematic diagram of a smoke baffle assembly provided by this utility model;

[0024] Figure 7 This is a schematic diagram of a range hood provided by this utility model;

[0025] In the figure, the corresponding labels are: 1-smoke baffle, 2-cooling device, 3-control module, 4-first panel, 5-second panel, 6-groove, 7-coolant, 8-third panel, 9-fourth panel, 10-liquid inlet pipe, 11-pressure relief device, 12-through hole unit, 13-third through hole, 14-fourth through hole, 15-ventilation duct, 16-smoke baffle assembly. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0028] like Figure 1-7 As shown, this utility model provides a smoke baffle assembly with cooling function and a range hood. The assembly includes a smoke baffle 1, a cooling device 2, and a control module 3. The cooling device 2 is a hollow cavity, which includes a first panel 4 and a second panel 5 arranged opposite to each other along a first preset direction. The first panel 4 is disposed on the side of the cooling device 2 close to the smoke baffle 1. The cooling device 2 is detachably connected to the smoke baffle 1 through the first panel 4. The second panel 5 is disposed on the side of the cooling device 2 away from the smoke baffle 1.

[0029] The first panel 4 is provided with a groove 6 on the side near the smoke baffle 1; the control module 3 is provided in the groove 6; coolant 7 is provided in the cavity; the coolant 7 exchanges heat with the smoke baffle 1 through the first panel 4; and the coolant 7 exchanges heat with the control module 3 through the groove 6.

[0030] In some embodiments, the cooling device 2 can be a cooling assembly. The first preset direction can be a horizontal direction parallel to the smoke baffle 1. By setting a first panel 4 and a second panel 5 parallel to the smoke baffle 1, the cooling device 2 is connected to the smoke baffle 1 through the first panel 4. The first panel 4 and the second panel 5 have different shapes. The coolant 7 can be a liquid with a high specific heat capacity, for example, water. Specific heat capacity refers to the amount of heat absorbed when the temperature of a unit mass of substance increases by 1°C. A liquid with a high specific heat capacity means that it can absorb more heat without significantly changing its own temperature. By setting a cooling device 2 filled with coolant 7, the cooling device 2 contacts the smoke baffle 1 through the first panel 4, and the heat of the smoke baffle 1 is transferred to the cooling device 2, realizing heat exchange between the smoke baffle 1 and the cooling device 2, reducing the temperature of the smoke baffle 1. Furthermore, the control module 3 is wrapped by the cooperation between the smoke baffle 1 and the groove 6, and the heat of the control module 3 is transferred to the cooling device 2, realizing heat exchange between the control module 3 and the cooling device 2, providing effective heat dissipation, improving the stability and reliability of the smoke baffle assembly, and extending the service life of the smoke baffle assembly.

[0031] In other embodiments, the coolant 7 can be other liquids with a high specific heat capacity, and the first preset direction can be set according to the actual situation.

[0032] In this utility model, the cavity further includes a third panel 8 and a fourth panel 9 arranged opposite to each other along a second preset direction; the second preset direction is perpendicular to the first preset direction; a first through hole is provided on the side of the third panel 8 near the first panel 4; a liquid inlet pipe 10 is provided in the first through hole; the liquid inlet pipe 10 is detachably connected to the cooling device 2 through the first through hole.

[0033] In some embodiments, such as Figure 2-3 As shown, the second preset direction is perpendicular to the direction of the smoke baffle 1, that is, perpendicular to the first preset direction. The third panel 8 and the fourth panel 9 have different shapes, connecting the first panel 4, the second panel 5, the third panel 8, and the fourth panel 9 to form a hollow cavity. The liquid inlet pipe 10 can be a water injection component, facilitating user-replenished coolant 7. By providing a first through hole on the cooling device to install the liquid inlet pipe, the convenience, reliability, and safety of the smoke baffle assembly are significantly improved. This allows users to easily replenish coolant, improves the heat dissipation efficiency of the smoke baffle assembly, and extends its service life.

[0034] In other embodiments, the second preset direction and the liquid inlet pipe 10 can be set according to the actual situation.

[0035] In this utility model, the fourth panel 9 is provided with a second through hole on the side close to the first panel 4; a pressure relief device 11 is provided in the second through hole; the pressure relief device 11 is detachably connected to the cooling device 2 through the second through hole.

[0036] In some embodiments, such as Figure 3 As shown, the pressure relief device 11 can be a safety valve. The safety valve is connected to the cooling device 2 through the second through hole, allowing it to automatically open when the internal pressure of the cooling system exceeds a preset safety threshold, releasing excess gas or vapor. This helps prevent the cooling device 2 from bursting due to excessive pressure and prevents pressure accumulation caused by the thermal expansion of the coolant 7. By releasing pressure in a timely manner, the cooling device 2 is protected from damage. By setting up a pressure relief device and connecting it to the cooling device, the internal pressure of the cooling device is ensured to be within a safe range, extending the service life of the smoke baffle assembly. It also protects the smoke baffle and control module from high-pressure damage, ensuring the reliability and stability of the smoke baffle assembly.

[0037] In other embodiments, the pressure relief device 11 can be other devices for pressure relief.

[0038] In this invention, the surface of the cooling device 2 is provided with a first preset number of through hole units 12; the plurality of through hole units 12 are distributed at equal intervals on the cooling device 2.

[0039] In some embodiments, such as Figure 5 As shown, the first preset quantity can be 11. By providing through holes on the surface of the cooling device 2, it is easy to cooperate with the ventilation duct 15, and multiple through hole units 12 are provided to enhance air circulation. The design of the through hole units helps to cooperate with the ventilation duct to improve the cooling efficiency of the cooling device, exhaust the hot air in the cooling device, and effectively control the temperature of the smoke baffle assembly.

[0040] In other embodiments, the first preset quantity can be set according to actual conditions.

[0041] The aforementioned through-hole unit 12 includes a third through-hole 13 with a first preset diameter and a fourth through-hole 14 with a second preset diameter; the first preset diameter is larger than the second preset diameter.

[0042] In some embodiments, such as Figure 2 , Figure 3 , Figure 5 As shown, for example, the first preset aperture is a, the second preset aperture is b, and a is greater than b. By setting the third through hole 13 and the fourth through hole 14 with different aperture sizes, they cooperate with the ventilation duct 15 to better guide the airflow into the interior of the cooling device, thereby enhancing the structural strength of the cooling device while maintaining the ventilation effect.

[0043] In other embodiments, the first preset aperture and the second preset aperture can be set according to actual conditions.

[0044] The third through hole 13 is provided on the side of the third panel 8 near the second panel 5.

[0045] In some embodiments, such as Figure 2 As shown, the third through hole 13 is located on the side of the third panel 8 near the second panel 5, and is located on the same panel as the liquid inlet pipe 10. This ensures smooth airflow around the liquid inlet pipe, making it more convenient for users to add coolant, reducing airflow interference, and facilitating the integration of ventilation pipes with other components. This simplifies the design of the smoke baffle assembly and improves its reliability.

[0046] The fourth through hole 14 is provided on the side of the fourth panel 9 that is close to the second panel 5.

[0047] In some embodiments, such as Figure 3 As shown, the fourth through hole 14 is located on the side of the fourth panel 9 near the second panel 5 and is located on the same panel as the pressure relief device 11. This helps to release pressure in time when the internal pressure of the cooling device is too high, improves the safety of the smoke baffle assembly, facilitates airflow guidance, ensures uniform airflow distribution inside the cooling device, and improves the cooling efficiency of the smoke baffle assembly.

[0048] In this invention, a second preset number of ventilation ducts 15 are provided in the cavity; the plurality of ventilation ducts 15 are distributed at equal intervals in the cooling device 2.

[0049] In some embodiments, the first preset quantity and the second preset quantity are the same. For example, both the first preset quantity and the second preset quantity can be 11. By setting multiple ventilation ducts 15 in the cooling device 2, the airflow is guided to flow along a predetermined path, ensuring that the airflow distribution inside the cooling device 2 is uniform, improving the cooling efficiency of the smoke baffle assembly, enhancing the heat exchange efficiency between the coolant and the smoke baffle and between the coolant and the control module, ensuring that the smoke baffle assembly maintains a stable pressure level, improving the reliability of the smoke baffle assembly, and extending the service life of the smoke baffle assembly.

[0050] In other embodiments, the second preset quantity can be set according to actual conditions.

[0051] The ventilation duct 15 is located at one end near the third panel 8 and passes through the third through hole 13; the ventilation duct 15 is located at one end near the fourth panel 9 and passes through the fourth through hole 14.

[0052] In some embodiments, the ventilation duct 15 has a third through hole 13 and a fourth through hole 14 passing through both ends, and each ventilation duct 15 corresponds to a through hole unit 12. Since the diameter of the third through hole 13 is larger than the diameter of the fourth through hole 14, a ventilation duct 15 with a larger diameter at one end and a smaller diameter at the other is formed, i.e., a conical ventilation duct. When the smoke baffle assembly 16 is in operation, the air absorbed by the smoke baffle 1 flows into the conical ventilation duct from the end with the larger diameter. As the diameter gradually decreases, the air volume is compressed, and the air velocity increases during the process of passing through the conical ventilation duct. Bernoulli's principle states that in incompressible fluids, as the fluid velocity increases, its static pressure decreases, i.e., the higher the velocity, the lower the pressure; the lower the velocity, the higher the pressure. Therefore, the static pressure of the air is lower in the narrow part of the conical ventilation duct. The formula relating fluid temperature change and pressure change obtained according to the Bernoulli effect is as follows:

[0053]

[0054] Wherein, ΔP t The differential pressure error represents the pressure change caused by the temperature change Δt, in Pa; Δt is the temperature change in °C; t is the absolute temperature in °C; and P is the test pressure in kPa.

[0055] It can be seen that if Δt>0, that is, the temperature rises, then ΔP t It will also be a positive value, meaning the pressure increases; if Δt < 0, meaning the temperature decreases, then ΔP t This will also be a negative value, meaning the pressure decreases; while 273+t represents the absolute temperature t, usually Celsius temperature plus 273.15. This means that as the temperature t increases, the denominator increases, thus making... The value of ΔP decreases, but as long as Δt is positive, ΔP... t It remains positive; as long as Δt is negative, ΔP t It remains negative. Therefore, when Δt > 0, ΔP t >0, meaning that an increase in temperature leads to an increase in pressure. When Δt < 0, ΔP t <0, meaning that a decrease in temperature leads to a decrease in pressure, and the fluid temperature change Δt and pressure change ΔP are both Δt and ΔP. t Yes, there is a positive correlation. When air passes through a narrow section, it undergoes adiabatic expansion due to the reduced pressure, resulting in a decrease in temperature. In other words, the air temperature decreases when flowing through the conical ventilation duct. The design of the ventilation duct connecting to the third and fourth through holes at both ends accelerates the airflow, enhances heat exchange between the air and the cooling device surface, reduces turbulence during airflow in and out, resulting in a smoother airflow and improved cooling efficiency of the smoke baffle assembly. Furthermore, compared to designs with straight holes or no holes, this design optimizes the airflow path and significantly improves the cooling effect of the smoke baffle assembly.

[0056] In other embodiments, the shape of the ventilation duct 15 can be set according to the actual situation.

[0057] The working principle of the smoke baffle assembly with cooling function and the range hood of this utility model is as follows:

[0058] When the smoke baffle assembly 16 starts working, air enters the cooling device 2 through the ventilation duct 15. The air enters the cooling device 2 through the third through hole 13, where the flow rate increases and the pressure decreases. It then flows out through the fourth through hole 14. The accelerated air exchanges heat with the coolant 7 in the cooling device 2, absorbing the heat generated by the control module 3 and the smoke baffle 1. The coolant 7 carries away the heat from the control module 3 and the smoke baffle 1. The hot air is discharged from the cooling device 2 through the ventilation duct 15. At the same time, the pressure relief device 11 opens when the pressure in the cooling device 2 is too high, and the liquid inlet pipe 10 is used to replenish the coolant 7 in a timely manner when the cooling device 2 is short of coolant 7.

[0059] In one exemplary embodiment, the present invention also provides a range hood, including but not limited to a near-suction range hood, which includes a smoke baffle assembly 16. The smoke baffle assembly optimizes the airflow path, effectively improves the cooling efficiency of the smoke baffle and the control module, and improves the reliability and safety of the range hood.

[0060] The beneficial effects of this utility model are:

[0061] This utility model discloses a smoke baffle assembly and range hood with cooling function, comprising a smoke baffle, a cooling device, and a control module. The cooling device is a hollow cavity, comprising a first panel and a second panel arranged opposite to each other along a first preset direction. The first panel is located on the side of the cooling device closer to the smoke baffle. The cooling device is detachably connected to the smoke baffle via the first panel. The second panel is located on the side of the cooling device away from the smoke baffle. A groove is provided on the side of the first panel closer to the smoke baffle. The control module is disposed within the groove. Coolant is disposed within the cavity. The coolant exchanges heat with the smoke baffle through the first panel and with the control module through the groove. This invention designs a cooling device that allows the first panel of the cooling device to contact and exchange heat with the smoke baffle, and the groove of the cooling device to contact and exchange heat with the control module, significantly improving the cooling efficiency of the cooling device. The conical ventilation duct accelerates airflow, enhances heat exchange between the air and the surface of the cooling device, reduces turbulence during airflow in and out, lowers airflow resistance and noise, and improves airflow smoothness. A pressure relief device allows for timely pressure release when the internal pressure of the cooling device is too high, and a liquid inlet pipe allows users to replenish coolant in a timely manner, improving the safety performance of the smoke baffle assembly, extending its service life, and enhancing its stability.

[0062] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A smoke baffle assembly with cooling function, characterized in that, The components include a smoke baffle (1), a cooling device (2), and a control module (3); the cooling device (2) is a hollow cavity, the cavity including a first panel (4) and a second panel (5) arranged opposite to each other along a first preset direction; the first panel (4) is disposed on the side of the cooling device (2) close to the smoke baffle (1); the cooling device (2) is detachably connected to the smoke baffle (1) through the first panel (4); the second panel (5) is disposed on the side of the cooling device (2) away from the smoke baffle (1); The first panel (4) has a groove (6) on the side near the smoke baffle (1); the control module (3) is disposed in the groove (6); the cavity is provided with coolant (7); the coolant (7) exchanges heat with the smoke baffle (1) through the first panel (4); the coolant (7) exchanges heat with the control module (3) through the groove (6).

2. The smoke baffle assembly according to claim 1, characterized in that, The cavity also includes a third panel (8) and a fourth panel (9) arranged opposite to each other along a second preset direction; the second preset direction is perpendicular to the first preset direction; the third panel (8) is provided with a first through hole on the side near the first panel (4); a liquid inlet pipe (10) is provided in the first through hole; the liquid inlet pipe (10) is detachably connected to the cooling device (2) through the first through hole.

3. The smoke baffle assembly according to claim 2, characterized in that, The fourth panel (9) has a second through hole on the side near the first panel (4); a pressure relief device (11) is provided in the second through hole; the pressure relief device (11) is detachably connected to the cooling device (2) through the second through hole.

4. The smoke baffle assembly according to claim 3, characterized in that, The surface of the cooling device (2) is provided with a plurality of through hole units (12); the plurality of through hole units (12) are distributed at equal intervals on the cooling device (2).

5. The smoke baffle assembly according to claim 4, characterized in that, The through-hole unit (12) includes a third through-hole (13) with a first preset diameter and a fourth through-hole (14) with a second preset diameter; the first preset diameter is larger than the second preset diameter.

6. The smoke baffle assembly according to claim 5, characterized in that, The third through hole (13) is located on the side of the third panel (8) near the second panel (5).

7. The smoke baffle assembly according to claim 5, characterized in that, The fourth through hole (14) is located on the side of the fourth panel (9) near the second panel (5).

8. The smoke baffle assembly according to claim 5, characterized in that, The cavity is provided with multiple ventilation ducts (15); the multiple ventilation ducts (15) are distributed at equal intervals in the cooling device (2).

9. The smoke baffle assembly according to claim 8, characterized in that, The ventilation duct (15) passes through the third through hole (13) at one end near the third panel (8); the ventilation duct (15) passes through the fourth through hole (14) at one end near the fourth panel (9).

10. A range hood, characterized in that, The range hood includes the smoke baffle assembly as described in any one of claims 1-9.

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