Air duct assembly and refrigeration equipment

Abstract

The utility model relates to an air duct assembly and refrigeration equipment, the air duct assembly comprises an air duct body, the air duct body comprises a main air duct with an air inlet and a plurality of air outlet branches which communicate with the main air duct and are located on the other side opposite to the air inlet, and the extending direction of at least part of the air outlet branches is roughly the same as the extending direction of the main air duct. The extending direction of at least part of the air outlet branches on the air duct body is roughly the same as the extending direction of the main air duct, and therefore the situation that the structures, such as the side walls of the air outlet branches and the like, on the air duct body are located on the flowing path of the incoming flow air, and consequently the incoming flow air is blocked from flowing in the air duct body can be reduced or even avoided. The air volume entering the air duct assembly can be increased to a certain extent, then the air volume entering the temperature changing chamber is guaranteed, and the temperature changing efficiency of the air duct assembly is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of refrigerators, and in particular, to an air duct assembly and a refrigeration device. BACKGROUND

[0002] In the related art, the structure inside the variable-temperature air duct can block the flow of incoming air in the air duct, thereby limiting the total amount of incoming air that the air duct assembly can provide, thus reducing the variable-temperature efficiency of the variable-temperature air duct and affecting the temperature change of the variable-temperature chamber. SUMMARY

[0003] The purpose of the present disclosure is to provide an air duct assembly and a refrigeration device to increase the total amount of incoming air that the air duct can provide, thereby at least partially solving the above problems.

[0004] To achieve the above purpose, the first aspect of the present disclosure provides an air duct assembly, comprising an air duct body, the air duct body comprising a main air duct having an air inlet and a plurality of air outlet branches respectively communicating with the main air duct and located on the other side opposite to the air inlet, at least part of the air outlet branches extending in the same direction as the main air duct.

[0005] Optionally, at least part of the air outlet branches in the plurality of air outlet branches extend to both sides of the first center line.

[0006] Optionally, the angle between the extension direction of the air outlet branch and the extension direction of the main air duct is 0-20°.

[0007] Optionally, the air duct body comprises a communication branch communicating the main air duct and the air outlet branch, the communication branch extending towards both sides of the air inlet direction of the main air duct, and the air outlet branches are arranged on the communication branch.

[0008] Optionally, a plurality of air outlets are arranged on the communication branch, and at least part of the air outlets are located at the communication between the communication branch and the air outlet branch.

[0009] Optionally, the communication branch extends obliquely towards both sides of the extension direction of the main air duct to guide the air passing through the main air duct into the air outlet branch.

[0010] Optionally, at least part of the adjacent air outlet branches have a guide slope connected with the communication branch, and the inclination direction of the guide slope is substantially the same as the inclination direction of the communication branch.

[0011] Optionally, the plurality of air outlet branches are symmetrically arranged about the first center line.

[0012] Optionally, the interval between the adjacent air outlet branches close to the main air duct is greater than the interval between the adjacent air outlet branches away from the main air duct.

[0013] Optionally, the length of the air outlet branch close to the main air duct is less than the length of the air outlet branch away from the main air duct; and / or, the width of the air outlet branch close to the main air duct is less than the width of the air outlet branch away from the main air duct.

[0014] Optionally, a plurality of air outlets are arranged on the air outlet branch.

[0015] Optionally, among the plurality of air outlet branches, the air outlet branch with the smallest ventilation area is arranged close to the main air duct; wherein the ventilation area is the sum of the areas of the air outlets on the air outlet branch.

[0016] Optionally, in the direction away from the main air duct, the ventilation area of at least part of the air outlet branch gradually increases.

[0017] Optionally, the size of the air outlet on part of the air outlet branch is different from the size of the air outlet on the rest of the air outlet branch; and / or, the number of the air outlet on part of the air outlet branch is different from the number of the air outlet on the rest of the air outlet branch.

[0018] Optionally, on at least one air outlet branch, the air outlet on the side away from the main air duct has a greater air outlet area than the air outlet on the side close to the main air duct; and / or, the arrangement density of the air outlet on the side away from the main air duct is greater than the arrangement density of the air outlet on the side close to the main air duct.

[0019] Optionally, the air outlet is configured as a polygonal hole.

[0020] Optionally, the air duct body comprises an air duct foam, a flow guide rib and a lower partition plate arranged in sequence, the air duct foam and the flow guide rib each comprise a main air duct, an air inlet and an air outlet branch arranged correspondingly, and the lower partition plate comprises a plurality of air outlets arranged at intervals, the air outlets being arranged correspondingly with the air outlet branches.

[0021] The second aspect of the present disclosure provides a refrigeration equipment comprising the air duct assembly.

[0022] According to the technical solution, the extension direction of at least part of the air outlet branch on the air duct body and the extension direction of the main air duct are substantially the same, so that the situation that the structure on the air duct body, such as the side wall of the air outlet branch, blocks the flow of the incoming airflow in the air duct body can be reduced or even avoided. Therefore, the air resistance of the incoming airflow into the air duct assembly can be reduced to a certain extent, the amount of air that can enter the air duct assembly is increased, the amount of air entering the temperature changing room is ensured, and the temperature changing efficiency of the air duct assembly is improved.

[0023] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, which together with the specific embodiments below, serve to explain the present disclosure but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 is a cross-sectional view of the air duct assembly provided by the embodiments of the present disclosure;

[0026] Figure 2 is an exploded view of the air duct assembly provided by the embodiments of the present disclosure;

[0027] Figure 3 is a structural view of the flow guide rib of the air duct assembly provided by the embodiments of the present disclosure;

[0028] Figure 4 is a structural view of the lower partition plate of the air duct assembly provided by the embodiments of the present disclosure.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 1-air duct body; 2-main air duct; 21-air inlet; 3-air outlet branch; 4-communication branch; 5-air outlet; 6-air duct foam; 7-flow guide rib; 8-lower partition plate; 9-guiding slope; M-first center line. DETAILED DESCRIPTION

[0031] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0032] In the present disclosure, the orientation words such as "inner" and "outer" are used to refer to the "inner" and "outer" relative to the outline of the corresponding component itself, unless otherwise stated. The "first center line" refers to the center line of the air inlet in the extension direction of the main air duct. The "front" side refers to the side opposite to the main air duct in the air duct body. The "rear" side refers to the side close to the air duct body in the air duct body. The "left" and "right" refer to the left and right sides of the first center line in the extension direction of the main air duct. The "incoming flow" refers to the wind flowing into the air duct assembly. In addition, the terms "first", "second" and the like used in the present disclosure are used to distinguish one element from another element, and do not have sequential and important meanings. Furthermore, in the following description, the same reference signs in different drawings represent the same or similar elements, unless otherwise explained. The above definitions are only used to explain and illustrate the present disclosure, and should not be understood as a limitation of the present disclosure.

[0033] The air duct assembly in the exemplary embodiment of the present disclosure will be described below with reference to the accompanying drawings.

[0034] Reference Figures 1 to 4 As shown in the drawings, the first aspect of the present disclosure provides an air duct assembly, which comprises an air duct body 1 including a main air duct 2 having an air inlet 21 and a plurality of air outlet branches 3 respectively communicating with the main air duct 2 and located on the other side opposite to the air inlet 21, and the extension direction of at least part of the air outlet branches 3 is substantially the same as the extension direction of the main air duct 2.

[0035] When adjusting the temperature of the variable temperature room, the incoming flow from the air inlet 21 into the main air duct 2 will enter the air outlet branch 3 and then enter the interior of the variable temperature room through the air outlet branch 3 to adjust the temperature of the variable temperature room. Since the extension direction of at least part of the air outlet branch 3 is substantially the same as the extension direction of the main air duct 2, i.e. the extension direction of the air outlet branch 3 is the same as or has a certain angle with the air inlet direction of the air inlet 21, when the incoming flow flows in the air duct body 1, the structure such as the side wall of the air outlet branch 3 in the air duct body 1 can be reduced or even avoided to block the flow of the incoming flow in the air duct body 1. Therefore, the resistance of the incoming flow into the air duct assembly can be reduced, the amount of wind entering the air duct body 1 can be increased, the amount of wind entering the variable temperature room can be ensured, and the variable temperature efficiency of the air duct assembly can be improved.

[0036] Of course, in order to maximize the amount of incoming flow in the air duct body 1, the extension direction of the air outlet branch 3 on the air duct body 1 can be substantially the same as the extension direction of the main air duct 2.

[0037] It can be understood that the extension direction of the main air duct 2, the air inlet direction of the air inlet 21 or the air inlet direction of the main air duct 2 can be parallel to each other.

[0038] In some embodiments of the present disclosure, as shown in Figure 1 At least part of the plurality of air outlet branches 3 can extend to both sides of the first center line M. In this way, the incoming airflow from the main air duct 2 can be properly divided to increase the area of the variable temperature room covered by the air outlet branch 3, so that the incoming airflow can be quickly exchanged with the inside of the variable temperature room, thereby adjusting the temperature in the variable temperature room.

[0039] For example, the variable temperature room can have a front region, a rear region, a left region, and a right region. The extension direction of the air outlet branch 3 can correspond to the front-rear direction of the variable temperature room. After the air outlet branch 3 extends to both sides of the first center line M, it can also correspond to the left-right region of the variable temperature room. Thus, under the condition that each air outlet branch 3 has sufficient incoming airflow, the area of the variable temperature room covered by the air outlet branch 3 is increased, ensuring that the incoming airflow can exchange heat with most of the area in the variable temperature room at the same time, thereby improving the variable temperature efficiency of the air duct assembly.

[0040] As shown in Figure 1 and Figure 3 The angle between the extension direction of the air outlet branch 3 and the extension direction of the main air duct 2 can be 0-20°, i.e., the angle between the extension direction of the air outlet branch 3 and the air inlet direction of the air inlet 21 can be 0-20°. Within this angle range, the side wall of the air outlet branch 3 can reduce or even avoid blocking the flow of incoming airflow in the air duct body 1, thereby increasing the amount of incoming airflow from the main air duct 2 into the air outlet branch 3, thereby increasing the amount of incoming airflow into the variable temperature room, ensuring the variable temperature efficiency of the variable temperature air duct. Specifically, the angle between the two can be 5°, 10°, 15°, etc. It should be noted that the angle between the extension direction of each air outlet branch 3 and the extension direction of the main air duct 2 can be the same or different. The angle between the extension direction of part of the air outlet branches 3 and the extension direction of the main air duct 2 can be the same, and the angle between the extension direction of part of the air outlet branches 3 and the extension direction of the main air duct 2 can be different. The worker can adaptively adjust the angle between the extension direction of each air outlet branch 3 and the extension direction of the main air duct 2 to maximize the amount of incoming airflow that can enter the air outlet branch 3.

[0041] In some embodiments, as shown in Figures 1 to 3As shown, the air duct body 1 can include a communication branch 4 that communicates the main air duct 2 and the air outlet branch 3, the communication branch 4 extends towards both sides of the air inlet direction of the main air duct 2, and the air outlet branch 3 is arranged on the communication branch 4 in a spaced manner. The incoming flow wind through the air inlet 21 will flow along the extension direction of the communication branch 4 after entering the main air duct 2 to enter each air outlet branch 3. Since the communication branch 4 can extend towards both sides of the extension direction of the main air duct 2, the main air duct 2 can be connected with the central region of the communication branch 4, so that the incoming flow wind can be relatively evenly divided into two parts and flow to both sides of the main air duct 2, thereby ensuring that each air outlet branch 3 has sufficient air volume, reducing or even avoiding the situation that the air inlet volume of the air outlet branch 3 far away from the main air duct 2 is insufficient, affecting the temperature changing efficiency of the air duct assembly.

[0042] In addition, in this way, part of the air outlet branch 3 can be arranged corresponding to the edge region of the temperature changing room. For example, the communication branch 4 can extend to the left and right sides of the air duct body 1 respectively, and the end of the communication branch 4 is close to the side edge of the temperature changing room. Thus, the incoming flow wind in the air outlet branch 3 can exchange heat with the edge region of the temperature changing room, thereby increasing the region of the temperature changing room corresponding to the air outlet branch 3, reducing or even avoiding the dead angle region in the temperature changing room where the incoming flow wind is not easy to flow, and ensuring the temperature changing efficiency of the air duct assembly.

[0043] In addition, as shown in the drawings, Figures 1 to 4 In order to fully utilize the space on the air duct body 1 and further increase the region of the temperature changing room that can be directly corresponding to the incoming flow wind in the air duct body 1, a plurality of air outlets 5 can also be arranged on the communication branch 4 in a spaced manner, and at least part of the air outlets 5 can be located at the communication position of the communication branch 4 and the air outlet branch 3. In the case of ensuring sufficient air volume in the air duct assembly, the arrangement of the air outlets 5 on the communication branch 4 can further increase the air volume delivered by the air duct assembly into the temperature changing room and the region of the temperature changing room covered by the incoming flow wind, so as to improve the temperature changing efficiency of the air duct assembly.

[0044] In the embodiments of the present disclosure, as shown in the drawings, Figures 1 to 3 Specifically, the communication branch 4 can be inclined towards the front side of the air duct body 1, that is, the incoming flow wind entering the communication branch 4 can gradually flow along the extension direction of the communication branch 4 towards the communication position of the communication branch 4 and the air outlet branch 3, thereby facilitating the flow of the incoming flow wind into the air outlet branch 3 and into the temperature changing room. For example, the included angle between the extension direction of the communication branch 4 and the air inlet direction of the air inlet 21 can be close to or 70°, so that the incoming flow wind in the communication branch 4 can be stably delivered to each air outlet branch 3.

[0045] It can be understood that, in order to further guide the incoming flow wind in the communication branch 4 to enter the air outlet branch 3, at least part of the adjacent air outlet branches 3 are provided with a guide slope 9 connected with the communication branch 4, and the inclination direction of the guide slope 9 is basically the same as that of the communication branch 4. That is, the guide slope 9 can be parallel to the inclination direction of the corresponding communication branch 4 or have a certain angle, for example, as shown in Figure 1 The four air outlet branches 3 can be provided on one side of the first center line M, and the area between the four air outlet branches 3 can form a slope connected with the communication branch 4, which forms the above-mentioned guide slope 9. Thus, after the incoming flow wind enters the communication branch 4 through the main air duct 2, more incoming flow wind can be guided into the air outlet branch 3 under the joint action of the communication branch 4 and the guide slope 9, thereby increasing the amount of wind entering the air duct assembly and improving the temperature changing effect of the air duct assembly.

[0046] In addition, as shown in Figure 1 and Figure 3 The plurality of air outlet branches 3 are symmetrically arranged about the first center line M. The symmetrically arranged plurality of air outlet branches 3 can make each air outlet branch 3 as uniform as possible to supply air to the temperature changing box, so as to ensure that each area in the temperature changing room can have sufficient incoming flow wind flowing, thereby improving the temperature changing efficiency of the air duct assembly on the temperature changing room.

[0047] For example, the air outlet branch 3 can be provided with eight air outlet branches 3, and four air outlet branches 3 can be arranged on the left and right sides of the first center line M, that is, the four air outlet branches 3 can be arranged parallel to the first center line M or be deflected by a certain angle to one side of the first center line M, so that the included angle between the four air outlet branches 3 and the first center line M can be between 0-20°, and the other four air outlet branches 3 can be arranged parallel to the first center line M or be deflected by a certain angle to the other side of the first center line M, so that the included angle between the four air outlet branches 3 and the first center line M can be between 0-20°.

[0048] Since part of the plurality of air outlet branches 3 are arranged opposite to the main air duct 2, more incoming flow wind enters the air outlet branch 3 arranged opposite to the main air duct 2 than the remaining air outlet branches 3. Therefore, the air volume of the area in the temperature changing box corresponding to these air outlet branches 3 can be greater than that of the remaining areas. Thus, the air outlet 5 can be arranged at the connection between the air outlet branch 3 and the communication branch 4 which is far away from the main air duct 2, so as to improve the air volume of the area far away from the main air duct 2 on the air duct body 1 to the other areas in the temperature changing box, thereby improving the temperature changing effect of the air duct assembly on the other areas in the temperature changing box.

[0049] In the embodiments of the present disclosure, as shown in Figures 1 to 3As shown, the air outlet branch 3 close to the main air duct 2 can have sufficient flow of the incoming air due to the possible fast speed of the incoming air and the possible direct arrangement of the air outlet branch 3 to the main air duct 2, and thus, the air outlet branch 3 can have sufficient flow of the incoming air and the corresponding area of the variable temperature room can have sufficient incoming air, but this can cause the air outlet branch 3 at the edge to have insufficient incoming air, and thus, in order to ensure that each air outlet branch 3 has sufficient incoming air flowing into the variable temperature room and to avoid the insufficient air flow of the air outlet branch 3 at the edge, the interval between the adjacent air outlet branches 3 close to the main air duct 2 can be greater than the interval between the adjacent air outlet branches 3. After increasing the interval between the air outlet branches 3 close to the main air duct 2, the loss of the air flow of the incoming air close to the main air duct 2 can be reduced as much as possible on the air duct body 1, so that sufficient incoming air can flow into the remaining air outlet branches 3, and thus, the air duct assembly can have sufficient incoming air to heat and change the temperature of each area in the variable temperature room.

[0050] In addition, since the flow of the incoming air close to the main air duct 2 is sufficient and the speed of the incoming air is fast, the air flow of the air outlet branch 3 can be greater than the air flow of the remaining air outlet branches in a unit of time, and thus, even if the interval between the adjacent air outlet branches 3 close to the main air duct 2 is large, the area of the variable temperature room corresponding to the air outlet branch 3 can have sufficient incoming air for heat exchange, so as to ensure the variable temperature efficiency of the air duct assembly, and in addition, the air flow ratio of each area in the variable temperature room can be average.

[0051] In some embodiments, as shown in FIG. 1, the air duct body 1 can include a main air duct 2 and a plurality of air outlet branches 3 arranged in parallel to the main air duct 2, and the air duct body 1 can be arranged in the variable temperature room. Figures 1 to 3As shown, in order to further ensure that each air outlet branch 3 can uniformly supply air, so that the air volume proportion of each area in the temperature changing room is as consistent as possible, and the situation of uneven temperature in the temperature changing room due to local air volume being too large or too small is avoided, the air outlet area of each air outlet branch 3 can be adjusted. Since the flow of the incoming air flow near the main air duct 2 is sufficient and the flow rate is fast, the air outlet area of the air outlet branch 3 near the main air duct 2 can be smaller than that of the remaining air outlet branches 3. For example, the length of the air outlet branch 3 near the main air duct 2 can be smaller than that of the remaining air outlet branches 3. Thus, by reducing the length of the air outlet branch 3 near the main air duct 2, the air outlet volume of these air outlet branches 3 can be reduced to some extent. For example, this can reduce the difference in air volume in the front and rear areas of the temperature changing room, so that the air volume distribution in the front and rear areas of the temperature changing room is basically consistent. In addition, the width of the air outlet branch 3 near the main air duct 2 can be smaller than that of the remaining air outlet branches 3. Thus, the air outlet area of the air outlet branch 3 near the main air duct 2 can be reduced, and the air outlet volume of the air outlet branch 3 near the main air duct 2 per unit time can be reduced. Thus, the air outlet volume per unit time of each air outlet branch 3 can be basically consistent. That is, the length and / or width of each air outlet branch 3 can be adaptively adjusted according to the air outlet volume of the air outlet branch 3, so that the air volume proportion of each area in the temperature changing room is as consistent as possible.

[0052] As shown in Figure 1 and Figure 4 The air outlet branch 3 can be provided with a plurality of spaced air outlets 5. The plurality of air outlets 5 can ensure that most areas in the temperature changing room have corresponding air outlets 5, so that the air volume proportion of each area in the temperature changing room is consistent.

[0053] Of course, in order to further balance the air outlet volume of each air outlet branch 3 and ensure that the air volume proportion of each area in the temperature changing room is consistent, the ventilation area of each air outlet branch 3 can also be adaptively adjusted. For example, since the flow of the incoming air flow near the main air duct 2 is sufficient and the flow rate is fast, the sum of the areas of the air outlets 5 on the air outlet branch 3 near the main air duct 2 can be adjusted, so as to change the air supply volume of each air outlet branch 3 per unit time. For example, as shown in Figure 1 and Figure 4As shown, among the multiple air outlet branches 3, the air outlet branch 3 with the smallest ventilation area can be arranged close to the main air duct 2. The ventilation area of ​​the air outlet branch 3 can be the sum of the areas of the air outlets 5 on the air outlet branch 3. One or more air outlet branches 3 with the smallest ventilation area can be set up close to the main air duct 2 as needed. This reduces the air supply volume of the air outlet branch 3 close to the main air duct 2 to a certain extent, while ensuring that there is still sufficient incoming airflow in other air outlet branches 3 that are farther away from the main air duct 2, so that the multiple air outlet branches 3 can distribute air evenly.

[0054] Furthermore, as the incoming airflow gradually moves away from the main air duct 2, the flow rate and velocity of the incoming airflow will gradually decrease. Therefore, in order to ensure that the outlet branch 3, which is away from the main air duct 2, can input sufficient incoming airflow into the variable temperature chamber, the ventilation area of ​​at least part of the outlet branch 3 can be gradually increased along the direction away from the main air duct 2. This ensures the airflow of the outlet branch 3, which is away from the main air duct 2, so that the airflow ratio in each area of ​​the variable temperature chamber is kept as consistent as possible.

[0055] Among them, such as Figure 1 and Figure 4 As shown, the sum of the areas of the air outlets 5 on the air outlet branch 3, i.e., the ventilation area of ​​each air outlet branch 3, can be adjusted in various ways. For example, the size of the air outlets 5 on some air outlet branches 3 can be different from the size of the other air outlets 5. This adjusts the flow rate of incoming air delivered by each air outlet 5 per unit time, thereby ensuring that the air supply volume of each air outlet branch 3 remains basically consistent per unit time. For example, the incoming air on the air outlet branch 3 near the main air duct 2 has a relatively sufficient air volume and a faster flow rate, so the air outlets 5 on it can be smaller than the air outlets 5 on other air outlet branches 3 far away from the main air duct 2. This can reduce the air supply volume on the air outlet branch 3 near the main air duct 2 per unit time to a certain extent, thereby achieving uniform air supply on each air outlet branch 3.

[0056] In addition, such as Figure 1 and Figure 4As shown, the size of the air outlet 5 corresponding to each other in the left-right direction of the air duct body 1 on the two adjacent air outlet branches 3 can be different, thereby adjusting the air supply amount of each air outlet branch 3. For example, there can be three air outlet branches 3 arranged in sequence in the left-right direction of the air duct body 1, which can be a first air outlet branch, a second air outlet branch, and a third air outlet branch. At least part of the air outlet 5 on the second air outlet branch can be larger than the size of the air outlet 5 corresponding to the setting position of the air outlet 5 on the first air outlet branch and the third air outlet branch, thereby adjusting the air volume of the air outlet branch 3 and the proportion of the air volume in the temperature changing chamber. Alternatively, the number of air outlets 5 on part of the air outlet branches 3 can be different from the number of air outlets 5 on the remaining air outlet branches 3, that is, by changing the number of air outlets 5 on the air outlet branch 3 to adjust the air supply amount on each air outlet branch 3, thereby achieving the effect of uniform air supply. For example, the incoming flow on the air outlet branch 3 close to the main air duct 2 is sufficient in air volume and fast in flow rate, so the number of air outlets 5 thereon can be less than the number of air outlets 5 on the air outlet branches 3 away from the main air duct 2. In this way, the air volume on the air outlet branch 3 per unit time can be adjusted to ensure that the air outlet branch 3 can uniformly supply air.

[0057] In addition, in order to ensure that the tail of each air outlet branch 3 can still have sufficient incoming flow into the temperature changing chamber, so that each region of the same air outlet branch 3 can uniformly supply air, on at least one air outlet branch 3, the air outlet area of the air outlet 5 away from the main air duct 2 side can be greater than the air outlet area of the air outlet 5 close to the main air duct 2 side, that is, the size of the air outlet 5 close to the head side of the air outlet branch 3 can be smaller than the size of the air outlet 5 close to the tail side of the air outlet branch 3; and / or, the arrangement density of the air outlet 5 away from the main air duct 2 side can be greater than the arrangement density of the air outlet 5 close to the main air duct 2 side, that is, the number of air outlets 5 close to the head side of the air outlet branch 3 can be less than the number of air outlets 5 close to the tail side of the air outlet branch 3. In this way, a part of the incoming flow lost at the head of the air outlet branch 3 can be reduced to ensure that the incoming flow still has sufficient air volume after flowing to the tail of the air outlet branch 3 to flow into the corresponding region of the temperature changing chamber.

[0058] In some embodiments of the present disclosure, in order to improve the air supply capacity of the air outlet 5, the air outlet 5 can be configured as a polygonal hole, for example, a rectangular hole structure such as a rectangular hole or a square hole.

[0059] In a second aspect of the present disclosure, a refrigeration equipment is provided, which comprises the air duct assembly described above. The refrigeration equipment has all the beneficial effects of the air duct assembly described above, which will not be repeated here.

[0060] In addition, it should be noted that the refrigeration equipment includes but is not limited to a refrigerator, a freezer and the like. The temperature-variable chamber of the present disclosure can be configured as a temperature-variable drawer in the refrigerator.

[0061] It can be understood that the relative position relationship between the air duct formed by the main air duct 2, the communication branch 4 and the air outlet branch 3 and the air duct body 1 can be adaptively adjusted according to the setting position of the fan in the refrigeration equipment, that is, the air duct can be arranged to the left of the air duct body 1, or to the right of the air duct body 1, or in the middle of the air duct body 1, so as to facilitate the communication between the air duct assembly and the fan.

[0062] In summary, the working principle of the air duct assembly is exemplarily shown in the present disclosure.

[0063] As shown in Figure 2 The air duct body 1 can include the air duct foam 6, the flow guide rib 7 and the lower partition plate 8 arranged in sequence, which can be connected together by clamping or hot melt welding to form the air duct body 1. The main air duct 2, the air inlet 21, the communication branch 4 and the air outlet branch 3 can be correspondingly arranged on the air duct foam 6 and the flow guide rib 7. The lower partition plate 8 can have a plurality of air outlets 5 arranged at intervals. The air outlets 5 are correspondingly arranged with the communication branch 4 and the air outlet branch 3.

[0064] After the incoming airflow enters the communication branch 4 through the main air duct 2, it will flow along the extension direction of the communication branch 4 towards both sides of the air duct body 1 and flow into the air outlet branch 3 under the guidance of the communication branch 4. Since the extension direction of the air outlet branch 3 is substantially the same as that of the main air duct 2, the structure on the air duct body 1, such as the side wall of the air outlet branch 3, will not hinder the flow of the incoming airflow, so that more incoming airflow can enter the air duct body 1, thereby improving the airflow volume in the air duct assembly.

[0065] In addition, since the airflow volume of the incoming airflow on the air outlet branch 3 close to the main air duct 2 is sufficient and the flow rate is fast, the length and width of these air outlet branches 3 can be smaller than those of the remaining air outlet branches 3. In addition, the sum of the areas of the air outlets 5 on each air outlet branch 3 close to the main air duct 2 can be smaller than the sum of the areas of the air outlets 5 on each of the remaining air outlet branches 3. For example, the number of air outlets 5 on each air outlet branch 3 close to the main air duct 2 can be less than the number of air outlets 5 on each of the remaining air outlet branches 3, and the size of the air outlets 5 on each air outlet branch 3 close to the main air duct 2 can be smaller than the size of the air outlets 5 on each of the remaining air outlet branches 3. Thus, each air outlet branch 3 can relatively uniformly outlet air. Based on this, the present disclosure can reduce the resistance of the incoming airflow into the air duct assembly to some extent, thereby improving the airflow volume that can enter the air duct assembly, and further ensuring the airflow volume into the temperature-variable chamber and improving the temperature-variable efficiency of the air duct assembly.

[0066] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details of the above-described embodiments. Various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and all of these simple modifications shall fall within the protection scope of the present disclosure.

[0067] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0068] In addition, various different embodiments of the present disclosure can also be combined in any appropriate manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.

Claims

1. An air duct assembly, characterized by, The air duct body comprises a main air duct with an air inlet and a plurality of air outlet branches respectively communicating with the main air duct and located on the other side opposite to the air inlet, and the extension direction of at least part of the air outlet branches is substantially the same as the extension direction of the main air duct.

2. The air duct assembly of claim 1, wherein, At least part of the air outlet branches extend to both sides of the first center line.

3. The air duct assembly of claim 2, wherein, The angle between the extension direction of the air outlet branch and the extension direction of the main air duct is 0-20°.

4. The air duct assembly of claim 1, wherein, The air duct body comprises a communication branch communicating the main air duct and the air outlet branch, the communication branch extends to both sides of the air inlet direction of the main air duct, and the air outlet branches are arranged on the communication branch.

5. The air duct assembly of claim 4, wherein, A plurality of air outlets are arranged on the communication branch, and at least part of the air outlets are located at the communication between the communication branch and the air outlet branch.

6. The air duct assembly of claim 4, wherein, The communication branch extends obliquely to both sides of the extension direction of the main air duct to guide the air passing through the main air duct into the air outlet branch.

7. The air duct assembly of claim 6, wherein, At least part of the adjacent air outlet branches have a guide slope connected with the communication branch, and the inclination direction of the guide slope is substantially the same as the inclination direction of the communication branch.

8. The air duct assembly of claim 1, wherein, A plurality of the air outlet branches are symmetrically arranged about the first center line.

9. The air duct assembly of claim 1, wherein, The spacing between a plurality of adjacent air outlet branches near the main air duct is greater than the spacing between the remaining adjacent air outlet branches.

10. The air duct assembly of claim 1, wherein, The length of the air outlet branch near the main air duct is less than the length of the remaining air outlet branch; and / or, The width of the air outlet branch near the main air duct is less than the width of the remaining air outlet branch.

11. The air duct assembly of any one of claims 1-10, wherein, A plurality of air outlets are arranged on the air outlet branch.

12. The air duct assembly of claim 11, wherein, Among a plurality of the air outlet branches, the air outlet branch with the smallest ventilation area is arranged near the main air duct; The ventilation area is the sum of the areas of the air outlets on the air outlet branch.

13. The air duct assembly of claim 12, wherein, In the direction away from the main air duct, the ventilation area of at least part of the air outlet branches gradually increases.

14. The air duct assembly of claim 11, wherein, The size of the air outlet on part of the air outlet branch is different from the size of the remaining air outlet; and / or, The number of the air outlet on part of the air outlet branch is different from the number of the air outlet on the remaining air outlet branch.

15. The air duct assembly of claim 14, wherein, On at least one of the air outlet branches, The air outlet area of the air outlet away from the main air duct is greater than the air outlet area of the air outlet near the main air duct; and / or, The arrangement density of the air outlet away from the main air duct is greater than the arrangement density of the air outlet near the main air duct.

16. The air duct assembly of claim 11, wherein, The air outlet is configured as a polygonal hole.

17. The air duct assembly of claim 1, wherein, The air duct body comprises air duct foam, flow guide ribs and lower partition plates arranged in sequence, the air duct foam and the flow guide ribs each comprise a main air duct, an air inlet and an air outlet branch arranged correspondingly, and the lower partition plate comprises a plurality of air outlets arranged at intervals, and the air outlets are arranged correspondingly with the air outlet branches.

18. A refrigeration appliance characterized by, The air duct assembly comprises any one of claims 1-17.

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