Evaporator and refrigeration equipment

Abstract

The utility model relates to the technical field of household appliances, and discloses an evaporator which comprises an evaporator body and a protective plate, and the evaporator body is provided with a refrigerant pipe; the protective plate is arranged on the side part of the evaporator main body; the protection plate is provided with a first opening part and a second opening part, at least part of the refrigerant pipe penetrates through the first opening part, the second opening part is configured to enable airflow to flow to the surface, away from the evaporator body, of the protection plate through the second opening part, and the airflow circulates between the first opening part and the second opening part. And defrosting on the surface, deviating from the evaporator main body, of the protective plate is facilitated. The utility model further discloses the refrigeration equipment.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to an evaporator and a refrigeration device. Background Art

[0002] Refrigeration equipment such as refrigerators and freezers are commonly used household appliances. As a refrigeration device of refrigeration equipment, the evaporator has a huge impact on the refrigeration effect of the entire refrigeration system. The evaporator includes an evaporator body and a guard plate. The evaporator body includes a refrigerant pipe. The guard plate is provided with a first opening. The guard plate is arranged on both sides of the evaporator body. The refrigerant pipe is passed through the first opening so that the guard plate supports and fixes the evaporator body. During the operation of the refrigeration equipment, the surface temperature of the evaporator is much lower than the dew point of the surrounding air, which makes the evaporator body and the guard plate easy to frost, affecting the evaporator refrigeration effect.

[0003] In the related art, a heating device and a fan are arranged at the bottom of the evaporator body. The fan generates an airflow that flows through the heating device and forms a hot airflow after heat exchange. The hot airflow is used to defrost the evaporator body.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The hot air flow flows from bottom to top along the evaporator body to realize defrosting of the evaporator body, and the guard plates are arranged on both sides of the evaporator body. Although a small amount of hot air flow can flow to the guard plates through the first opening, the hot air flow through the first opening is small, resulting in incomplete defrosting of the guard plates.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide an evaporator and a refrigeration device to improve the defrosting effect of a guard plate.

[0009] According to a first aspect of an embodiment of the present disclosure, an evaporator is provided, which includes: an evaporator body and a protective plate, the evaporator body is provided with a refrigerant pipe; the protective plate is arranged on the side of the evaporator body; wherein the protective plate is provided with a first opening portion and a second opening portion, at least a portion of the refrigerant pipe is passed through the first opening portion, and the second opening portion is configured to allow air to flow through the second opening portion to flow to the surface of the protective plate away from the evaporator body.

[0010] Optionally, the second opening is arranged at the outer edge of the guard plate.

[0011] Optionally, the outer edge of the guard plate includes: a first side wall and a second side wall, the first side wall extending along the height direction of the guard plate; the second side wall is arranged opposite to the first side wall; and the second opening is arranged on the first side wall and / or the second side wall.

[0012] Optionally, the second opening on the first side wall is staggered with the second opening on the second side wall.

[0013] Optionally, there are multiple second openings, and the multiple second openings are arranged in sequence along the height direction of the guard plate.

[0014] Optionally, the second opening is arranged at an angle.

[0015] Optionally, the first opening portion is arranged obliquely, and at least one side wall of the second opening portion is parallel to the side wall of the first opening portion.

[0016] Optionally, the evaporator further comprises a baffle, which is arranged on a surface of the guard plate facing away from the evaporator body; and the second opening is arranged below the baffle.

[0017] Optionally, the evaporator further includes a heating element, which is arranged below the evaporator body.

[0018] According to a second aspect of an embodiment of the present disclosure, a refrigeration device is provided, and the refrigeration device includes an evaporator as described in any one of the above embodiments.

[0019] The evaporator provided in the embodiment of the present disclosure can achieve the following technical effects:

[0020] The evaporator includes an evaporator body and a guard plate, wherein the evaporator body is provided with a refrigerant pipe; the guard plate is provided at the side of the evaporator body; wherein the guard plate is provided with a first opening and a second opening, wherein the refrigerant pipe is passed through the first opening, and the second opening is configured to allow air to flow through the second opening to the surface of the guard plate away from the evaporator body, so as to achieve defrosting of the guard plate. The air flow mutually circulates between the first opening and the second opening, thereby improving the defrosting effect of the guard plate.

[0021] In the present application, a first opening and a second opening are provided on the guard plate. Compared with the prior art in which the guard plate only has the first opening, this facilitates the airflow to flow along the second opening to the surface of the guard plate away from the evaporator body, thereby increasing the airflow flow to the surface of the guard plate away from the evaporator body and improving the defrosting effect of the guard plate.

[0022] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0024] Figure 1 is a schematic structural diagram of an evaporator provided in an embodiment of the present disclosure;

[0025] Figure 2 It is a schematic diagram of the structure of a guard plate;

[0026] Figure 3 is a schematic structural diagram of a guard plate provided by an embodiment of the present disclosure;

[0027] Figure 4 It is a schematic diagram of the structure of another evaporator provided in an embodiment of the present disclosure.

[0028] Reference numerals:

[0029] 10: Evaporator body; 11: Refrigerant pipe;

[0030] 20: Air duct baffle;

[0031] 30: guard plate; 31: first side wall; 32: second side wall; 33: first opening; 34: second opening; 341: first inner wall; 3411: first end; 3412: second end; 342: second inner wall; 3421: third end; 3422: fourth end; 35: baffle;

[0032] 40: Heating element. DETAILED DESCRIPTION

[0033] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0034] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate for the disclosed embodiments described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0035] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0036] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0037] Unless otherwise stated, the term "plurality" means two or more.

[0038] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0039] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0041] As a refrigeration device of refrigeration equipment, the evaporator has a huge impact on the refrigeration effect of the entire refrigeration system. During the operation of the refrigeration equipment, the surface temperature of the evaporator is much lower than the dew point of the surrounding air, which makes it easy for the evaporator surface to frost, affecting the evaporator's refrigeration effect. Therefore, when the frost layer on the evaporator surface reaches a certain thickness, the evaporator needs to be defrosted. The existing defrosting method for the evaporator is to set a heating device and a fan at the bottom of the evaporator. When the frost layer on the evaporator surface is thick and needs to be defrosted, turn on the heating device, and the fan blows the airflow to the heating device. After heat exchange with the heating device, the hot air flow blows to the evaporator to defrost the evaporator. This ensures the continuous and stable operation of the evaporator.

[0042] The evaporator includes a guard plate and an evaporator body. The guard plate is arranged at the side of the evaporator body, and the fan is arranged below the evaporator body. The hot air flows from bottom to top along the evaporator body. Since the guard plate is arranged at the side, it is difficult for the hot air to flow toward the guard plate, resulting in the guard plate being difficult to defrost after being frosted.

[0043] The disclosed embodiments provide an evaporator and a refrigeration device, which are conducive to defrosting the guard plates on both sides of the evaporator body.

[0044] In the first aspect of the embodiment of the present disclosure, Figures 1 to 4 As shown, an evaporator is provided.

[0045] Optionally, the evaporator includes: an evaporator body 10 and a protective plate 30, the evaporator body 10 is provided with a refrigerant pipe 11; the protective plate 30 is arranged on the side of the evaporator body 10; wherein the protective plate 30 is provided with a first opening portion 33 and a second opening portion 34, at least part of the refrigerant pipe 11 is passed through the first opening portion 33, and the second opening portion 34 is configured to allow the air flow to flow through the second opening portion 34 to the surface of the protective plate 30 away from the evaporator body 10.

[0046] The refrigeration process of the refrigeration equipment is as follows: the refrigerant passes through the compressor, condenser and capillary tube, and enters the refrigerant tube 11 of the evaporator. The refrigerant is evaporated, absorbs the surrounding heat, exchanges heat with the surrounding air, and reduces the temperature near the evaporator to achieve refrigeration. A frost layer will form on the surface of the evaporator due to the temperature difference with the surrounding air. When the frost layer is thick, the refrigeration performance of the evaporator is reduced. For this reason, the evaporator needs to be defrosted regularly.

[0047] Optionally, combined Figure 4 As shown, the evaporator body 10 includes a refrigerant tube 11, which is spirally coiled in the up and down direction. The end of the refrigerant tube 11 is inserted into a first opening portion 33. There are multiple first opening portions 33, and the refrigerant tube 11 is fixed by multiple first opening portions 33.

[0048] Optionally, combined Figure 1 and Figure 4As shown, two oppositely arranged guard plates 30 are provided on the side of the evaporator body 10, and two oppositely arranged air duct baffles 20 are provided on the front and rear sides of the evaporator body 10. The air duct baffles 20 are connected to the guard plates 30 and a fold is formed at the connection so that the air duct baffles 20 and the guard plates 30 are jointly arranged around the evaporator body 10. When the evaporator is refrigerated or the evaporator is defrosted, a fan is provided below the evaporator body 10 so that the cold air flow or hot air flow flows from bottom to top along the evaporator body 10. Because the air duct baffles 20 are in contact with the guard plates 30, most of the air flow generated by the fan will flow along the inside of the evaporator body 10, and only a small amount of air flow flows into the outer surface of the guard plates 30 through the first opening 33 and flows along the guard plates 30, which makes it difficult for the side positions of the guard plates 30 to defrost. Therefore, when the evaporator is heated and defrosted, the middle part of the guard plate 30 is easy to defrost, while the two sides of the guard plate 30 are difficult to defrost due to less hot air flow. As the frost layer on the guard plate 30 becomes thicker, the overall defrosting effect of the evaporator is affected and the weight of the evaporator is increased.

[0049] Figure 2 The guard plate 30 provided in the prior art is not provided with the second opening 34. The first side wall 31 and the second side wall 32 are in contact with the air duct baffle 20, and the airflow can only flow into the outer surface of the guard plate 30 from the first opening 33, resulting in poor defrosting effect of the guard plate.

[0050] Using the embodiment of the present disclosure, combined with Figure 3 As shown, a second opening 34 is provided on the guard plate 30, and the second opening 34 is configured to allow air to flow through the second opening 34 to the surface of the guard plate 30 away from the evaporator body 10. The airflow between the second opening 34 and the first opening 33 is interconnected, increasing the airflow rate, accelerating the airflow, and facilitating defrosting of the guard plate 30. At the same time, the hot air flow can circulate between the evaporator body 10, the first opening 33, and the second opening 34, accelerating the defrosting of the evaporator body 10 and enhancing the defrosting effect of the evaporator.

[0051] Optionally, the second opening portion 34 is provided at an outer edge of the guard plate 30 .

[0052] Optionally, the location of the second opening 34 may be set according to actual frosting conditions of the guard plate 30 .

[0053] Exemplarily, the second opening 34 is disposed at a position of the guard plate 30 that is biased toward the left side.

[0054] Optionally, combined Figure 3 As shown, the outer edge of the guard plate 30 includes a first side wall 31 and a second side wall 32 , the first side wall 31 extends along the height direction of the guard plate 30 ; the second side wall 32 is arranged opposite to the first side wall 31 ; the second opening 34 is arranged on the first side wall 31 and / or the second side wall 32 .

[0055] Optionally, there are multiple second opening portions 34, and the multiple second opening portions 34 are arranged in sequence along the extension direction of the first side wall 31; or, there are multiple second opening portions 34, and the multiple second opening portions 34 are arranged in sequence along the extension direction of the second side wall 32; or, there are multiple second opening portions 34, and the multiple second opening portions 34 are arranged on the first side wall 31 and the second side wall 32, and are arranged along the extension direction of the first side wall 31 and the second side wall 32.

[0056] Optionally, the number of the second openings 34 is one or more.

[0057] Optionally, the evaporator body 10 includes a refrigerant tube 11, and the refrigerant tube 11 includes an inlet tube and an outlet tube. The guard plate 30 is provided with two first openings 33 along the same horizontal direction to support the inlet tube and the outlet tube respectively. The airflow can flow between the two first openings 33, so that the position of the guard plate 30 close to the first openings 33 can achieve defrosting. However, the first side wall 31 and the second side wall 32 are in contact with the air duct baffle 20, so that the airflow cannot flow near the first side wall 31 and the second side wall 32, which makes it difficult for both sides of the guard plate 30 to defrost.

[0058] According to the disclosed embodiment, a second opening 34 is provided on the first side wall 31 of the guard plate 30, or a second opening 34 is provided on the second side wall 32 of the guard plate 30, or a second opening 34 is provided on both the first side wall 31 and the second side wall 32 of the guard plate 30. The fan and the heating device are arranged below the evaporator body 10, and the airflow generated by the fan exchanges heat with the heating device, flows from bottom to top along the evaporator body 10, and flows along the second opening 34 to the surface of the guard plate 30 away from the evaporator body 10, so that the hot airflow flows between the first opening 33 and the second opening 34, so as to facilitate defrosting of the outer surface of the guard plate 30 and improve the overall defrosting effect of the evaporator.

[0059] Optionally, the second opening 34 on the first side wall 31 and the second opening 34 on the second side wall 32 are staggered.

[0060] The main function of the guard plate 30 is to support and fix the evaporator body 10. The overall strength of the guard plate 30 can be reduced by providing the second opening 34 on the first side wall 31 of the guard plate 30 and / or on the second side wall 32 of the guard plate 30.

[0061] Strength refers to the ability of metal materials to resist plastic deformation and fracture under external forces, or the ability of materials to resist destruction. To ensure the strength of materials, the shape and size of parts must be reasonable, and sharp corners, notches, and cross-sectional changes must be avoided to avoid stress concentration.

[0062] Therefore, the second opening portion 34 on the first side wall 31 and the second opening portion 34 on the second side wall 32 are staggered, which can reduce the stress concentration of the guard plate 30 at the same horizontal position, thereby ensuring the strength of the guard plate 30 when the second opening portion 34 is set, thereby ensuring that the effect of the guard plate 30 in supporting and fixing the evaporator body 10 is not weakened.

[0063] Optionally, there are multiple second openings 34 , and the multiple second openings 34 are arranged in sequence along the height direction of the guard plate 30 .

[0064] Optionally, there are multiple first openings 33 and multiple second openings 34 , and the multiple first openings 33 and the multiple second openings 34 correspond to each other, thereby accelerating the airflow on the guard plate 30 and improving the defrosting effect of the guard plate 30 .

[0065] Optionally, the second opening portion 34 is arranged obliquely.

[0066] The second opening 34 is inclined at the first side wall 31 and / or the second side wall 32 of the guard plate 30, which is conducive to guiding the airflow to enter the outer surface of the guard plate 30 along the inclined surface of the second opening 34 and to circulate with the hot airflow flowing through the first opening 33. The inclined second opening 34 is conducive to guiding the airflow from the evaporator body 10 into the guard plate 30, increasing the airflow flow and improving the defrosting efficiency of the guard plate 30.

[0067] Optionally, the first opening portion 33 is arranged obliquely, and at least one side wall of the second opening portion 34 is parallel to the side wall of the first opening portion 33 .

[0068] Optionally, the second opening portion 34 includes a first inner wall 341 and a second inner wall 342 , and at least one side wall of the first inner wall 341 and the second inner wall 342 is parallel to a side wall of the first opening portion 33 .

[0069] In this way, the opening size of the second opening 34 can be ensured, so that the airflow of the second opening 34 can fully communicate with the airflow of the first opening 33 , and the airflow can be easily guided to flow from the second opening 34 to the first opening 33 .

[0070] Optionally, the second opening portion 34 includes a first inner wall 341, and the first inner wall 341 includes a first end 3411 and a second end 3412. From top to bottom, the first end 3411 is connected to the first side wall 31 and a fold is formed at the connection, and the second end 3412 is inclined downward.

[0071] Optionally, the second opening portion 34 further includes a second inner wall 342 , and the second inner wall 342 includes a third end 3421 and a fourth end 3422 , and along the direction from top to bottom, the third end 3421 is connected to the first side wall 31 and a fold is formed at the connection, and the fourth end 3422 is inclined upward.

[0072] Optionally, the second end 3412 is connected to the fourth end 3422 and a bend is formed at the connection.

[0073] In this way, the second opening 34 is in a triangular shape, and the first inner wall 341 is parallel to the side wall of the first opening 33 .

[0074] By tilting the first inner wall 341 and the second inner wall 342 to guide the airflow along the first inner wall 341 and / or the second inner wall 342 to flow toward the guard plate 30, at the same time, the tilted second opening portion 34 increases the flow rate of the airflow to the guard plate 30, which is beneficial to defrosting the guard plate 30.

[0075] Optionally, the distance between the first inner wall 341 and the side wall of the first opening 33 closest to the second opening 34 is not less than 8 mm, which can ensure that the strength of the guard plate 30 is not reduced due to the opening being too deep.

[0076] It is understandable that the distance between the first inner wall 341 and / or the second inner wall 342 and the side wall of the first opening 33 is set according to the actual size of the guard plate 30. Under the premise of ensuring the strength of the guard plate 30, the larger the opening of the second opening 34 is, the more the flow rate of the airflow to the guard plate 30 is increased, which is more conducive to defrosting the guard plate 30.

[0077] Optionally, the second opening 34 is in a circular, rectangular, triangular or other shape.

[0078] It is understandable that the shape of the second opening 34 is not specifically limited and can be adjusted according to actual processing requirements and the shape of the guard plate 30 .

[0079] Optionally, the first side wall 31 and the second side wall 32 are both provided with a second opening 34, and the opening shape of the second opening 34 is a triangle. The base angles of the two second openings 34 along the same horizontal direction are not in the same straight line, that is, the two second openings 34 along the width direction of the guard plate 30 are staggered to ensure the strength of the guard plate 30.

[0080] Optionally, the length of the orthographic projection of the second opening portion 34 on the first side wall 31 is not less than the length of the orthographic projection of the first opening portion 33 on the first side wall 31, so that the open end of the second opening portion 34 can cover the first opening portion 33 to ensure that sufficient airflow is guided to the guard plate 30.

[0081] Optionally, combined Figure 4 As shown, the evaporator further includes a baffle 35 , which is disposed on a surface of the guard plate 30 facing away from the evaporator body 10 ; the second opening 34 is disposed below the baffle 35 .

[0082] A baffle 35 is provided on the surface of the guard plate 30 facing away from the evaporator body 10 so as to allow a large amount of airflow to flow along the inside of the evaporator body 10 without affecting the defrosting of the guard plate 30, thereby ensuring the refrigeration effect and defrosting effect of the evaporator body 10.

[0083] When the evaporator is cooling, the fan is arranged below the evaporator body 10, so the airflow flows from bottom to top, and the moisture contained in the airflow is mainly concentrated in the lower part of the evaporator body 10, so it is not easy to frost the upper part of the evaporator body 10. The baffle 35 is arranged at the upper position of the guard plate 30, and will not affect the defrosting of the guard plate 30 near the lower part and the position prone to frost.

[0084] The second opening 34 is disposed below the baffle 35 , which is beneficial for defrosting the position below the guard plate 30 that is prone to frost. The second opening 34 is not disposed above the baffle 35 that is not prone to frost, thereby ensuring the strength of the guard plate 30 .

[0085] It is understandable that the location of the second opening 34 on the guard plate 30 should be determined according to actual conditions. When the frost above the baffle 35 is thicker, the second opening 34 can be provided both above and below the baffle 35 .

[0086] Optionally, the evaporator further includes a heating element 40 , which is disposed below the evaporator body 10 .

[0087] Optionally, the heating element 40 is a heating wire, a ceramic heating plate, etc.

[0088] As can be seen from the above, frost is easily formed below the evaporator body 10 , so the heating element 40 is arranged below the evaporator body 10 to ensure the defrosting effect of the evaporator body 10 .

[0089] According to a second aspect of an embodiment of the present disclosure, a refrigeration device is provided, and the refrigeration device includes an evaporator as described in any one of the above embodiments.

[0090] The evaporator provided in the embodiment of the present disclosure can achieve the following technical effects:

[0091] The evaporator includes an evaporator body 10 and a protective plate 30. The evaporator body 10 is provided with a refrigerant pipe 11; the protective plate 30 is arranged on the side of the evaporator body 10; wherein, the protective plate 30 is provided with a first opening portion 33 and a second opening portion 34, the refrigerant pipe 11 is passed through the first opening portion 33, and the second opening portion 34 is configured to allow air to flow through the second opening portion 34 to the surface of the protective plate 30 away from the evaporator body 10, so that the airflow of the first opening portion 33 and the second opening portion 34 can circulate with each other, which facilitates the airflow to flow to the outer surface of the protective plate 30, which is beneficial to defrosting the protective plate 30.

[0092] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An evaporator, characterized in that: include: The evaporator body is provided with a refrigerant pipe; A guard plate is provided on the side of the evaporator body; The guard plate is provided with a first opening and a second opening, the refrigerant pipe is passed through the first opening, and the second opening is configured to allow the air flow to flow through the second opening to the surface of the guard plate away from the evaporator body.

2. The evaporator according to claim 1, characterized in that The second opening is arranged at the outer edge of the guard plate.

3. The evaporator according to claim 2, characterized in that The outer edge of the guard plate includes: A first side wall extending in a height direction of the guard plate; a second side wall, arranged opposite to the first side wall; The second opening is disposed on the first side wall and / or the second side wall.

4. The evaporator according to claim 3, characterized in that The second opening on the first side wall is staggered with the second opening on the second side wall.

5. The evaporator according to claim 1, characterized in that There are multiple second openings, and the multiple second openings are arranged in sequence along the height direction of the guard plate.

6. The evaporator according to claim 1, characterized in that The second opening is arranged obliquely.

7. The evaporator according to claim 6, characterized in that The first opening is inclined, and at least one side wall of the second opening is parallel to the side wall of the first opening.

8. The evaporator according to any one of claims 1 to 7, characterized in that: Also includes: A baffle, arranged on a surface of the guard plate facing away from the evaporator body; The second opening is arranged below the baffle.

9. The evaporator according to any one of claims 1 to 7, characterized in that: Also includes: The heating element is arranged below the evaporator body.

10. A refrigeration device, characterized in that: Comprising the evaporator according to any one of claims 1 to 9.

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