Dew removal structure of refrigerator

Abstract

The technical scheme belongs to the technical field of low-temperature refrigerator dew removing devices, and particularly relates to a refrigerator dew removing structure which comprises a cabinet body and a cabinet door hinged to the cabinet body, the cabinet body is provided with a freezing chamber, the cabinet door is used for covering the freezing chamber, an opening frame is formed in the position, surrounding an opening of the freezing chamber, of the upper end of the cabinet body, and a mounting cavity is formed in the inner side face, corresponding to the opening frame, of the cabinet body; the cabinet body is further provided with a refrigerating device, the refrigerating device is provided with a condensation pipe, the condensation pipe comprises a first pipe section and a second pipe section, an outlet of the first pipe section communicates with an inlet of the condensation pipe, an outlet of the condensation pipe communicates with the second pipe section, and hot air in the first pipe section enters the condensation pipe to be used for heating the mouth frame. The temperature of refrigerants flowing through the dew removal pipes is increased, the dew removal capacity of the condensation pipes is improved, and therefore the heat preservation performance and the freezing effect of the refrigerator are enhanced, and the surface of the opening frame is prevented from being frozen.

Description

Technical Field

[0001] The present technical solution relates to the technical field of low-temperature refrigerator dew removal devices, and in particular to a refrigerator dew removal structure. Background Art

[0002] A freezer is a device used to store food and other items at low temperatures. The freezer consists of a cabinet body and a door. The door improves the cooling effect of the cabinet body. The cabinet body has the characteristics of large volume and flexible use of space. It also includes a refrigeration system and a temperature control system. The freezer has a good cooling effect and is suitable for home and commercial use. In commercial environments, freezers are usually used in restaurants, water bars, food processing and supermarkets.

[0003] For example, Chinese patent CN114294881A discloses a refrigerator that prevents condensation and frost on a center beam, comprising a cabinet body; a refrigeration component disposed in the cabinet body; a condenser connected to the refrigeration component; two cabinet doors mounted on the cabinet body via hinges; a center beam mounted on the cabinet body, wherein the center beam has a storage space arranged along the length direction of the center beam; a dew-removing pipe located in the storage space and connected to the condenser pipe and capable of generating heat. When the cabinet door is closed, a seal on the cabinet door contacts the center beam, and the contact position is in a heated state, which will not cause condensation and icing.

[0004] The above-mentioned refrigerator that prevents condensation and frost on the center beam needs to first pass through the condenser pipe and then flow through the dehumidification pipe for dehumidification during heat exchange. A lot of heat is lost in this process, resulting in poor dehumidification effect and easy frost formation, which needs to be improved. Summary of the invention

[0005] In order to improve the problem of poor dehumidification effect of the dehumidification pipe, the present technical solution provides a dehumidification structure for a refrigerator.

[0006] The purpose of this technical solution is achieved in this way:

[0007] A dew removal structure for a refrigerator comprises a cabinet body and a cabinet door hinged to the cabinet body, the cabinet body being provided with a freezing chamber, the cabinet door being used to cover the freezing chamber, an opening frame being formed at the upper end of the cabinet body surrounding the opening of the freezing chamber, an installation cavity being provided on the inner side surface of the cabinet body corresponding to the opening frame, a dew removal pipe being provided in the installation cavity, the cabinet body being further provided with a refrigeration device, the refrigeration device having a condensing pipe, the condensing pipe comprising a pipe section one and a pipe section two, the outlet of the pipe section one being connected to the inlet of the dew removal pipe, and the outlet of the dew removal pipe being connected to the pipe section two, the hot air in the pipe section one entering the dew removal pipe is used to heat the opening frame.

[0008] Through the above technical scheme, when the dew removal structure of the refrigerator is in normal use, the mouth frame is installed around the opening of the freezer chamber, and the cabinet door can lean against the mouth frame to cover the freezer chamber. The cabinet door opens the freezer chamber by flipping along the hinge axis in the direction away from the cabinet body, and the mouth frame covers the installation cavity formed by the cabinet body corresponding to the mouth frame, so that the dew removal pipe is sealed in the installation cavity, and the refrigerant flows along the internal flow channel of the condenser tube, dividing the condenser tube into tube section one and tube section two. The refrigerant generates high-temperature gas through the compressor and enters tube section one, and enters the dew removal pipe from the outlet of tube section one connected to the inlet of the dew removal pipe, so that the refrigerant first flows through the dew removal pipe to achieve dew removal during heat exchange, and the outlet of the dew removal pipe is connected to the inlet of the tube section two, so that the refrigerant flows through the tube section two to complete the heat exchange, shortening the flow distance of the refrigerant before entering the dew removal pipe, ensuring that the dew removal pipe can obtain sufficient heat for dew removal, increasing the temperature of the refrigerant flowing through the dew removal pipe, and improving the dew removal capacity of the condenser tube, thereby enhancing the thermal insulation performance and freezing effect of the refrigerator, and preventing ice from forming on the surface of the mouth frame.

[0009] Preferably, the length ratio of the pipe section 1 to the pipe section 2 is between 0.2 and 0.5.

[0010] Through the above technical solution, the length ratio of section 1 and section 2 of the condenser is limited to the range of 0.2-0.5, so that the section length of section 1 is less than or equal to section 2, avoiding the effect of section 1 being too long resulting in low refrigerant heat and maintaining the normal dew removal effect.

[0011] Preferably, the opening frame is detachably connected to the cabinet.

[0012] Through the above technical solution, the mouth frame and the cabinet body are detachably connected, and the dew-removing pipe is installed by disassembling the mouth frame, which improves the convenience of disassembly and assembly of the dew-removing pipe and facilitates replacement and maintenance.

[0013] Preferably, the dew removal pipe is formed with a first pipe segment and a second pipe segment around the mouth frame, the first pipe segment is connected to the second pipe segment and surrounds the outside of the second pipe segment, the mouth frame is provided with a positioning card, the positioning card is used to support the second pipe segment, the inlet of the dew removal pipe is arranged on the first pipe segment, and the outlet of the dew removal pipe is arranged on the second pipe segment.

[0014] Through the above technical scheme, the dew-removing pipe is divided into a first pipe section and a second pipe section. The first pipe section is formed by the dew-removing pipe surrounding a circle along the circumference of the mouth frame. The inlet of the first pipe section is connected with the outlet of the pipe section one. The dew-removing pipe is then surrounded on the mouth frame along the inner circumference of the first pipe section to form a second circle. The second circle is the second pipe section. The outlet of the second pipe section is connected with the inlet of the pipe section two. The first pipe section and the second pipe section are connected to each other. The layout of the dew-removing pipe surrounded in two circles enables the dew-removing pipe to be heated more evenly around the mouth frame, thereby improving the dew-removing effect of the dew-removing pipe and further reducing the formation of dew and frost.

[0015] Preferably, the mouth frame is provided with an annular edge portion, which is fixed to the lower end surface of the mouth frame and extends toward the installation cavity, and the first pipe segment surrounds the inner side of the annular edge portion. Limiting portions are also provided on both sides of the mouth frame, and embedding grooves for the first pipe segment to be embedded are formed between the limiting portions and the annular edge portions on both sides.

[0016] Through the above technical solution, the ring edge portion plays a role in surrounding and positioning the first pipe segment, so that the first pipe segment can be guided along the inner wall of the ring edge portion, and the first pipe segment is positioned by cooperating with the limiting portions on both sides and the ring edge portion, and a groove is formed to limit the horizontal displacement of the first pipe segment, thereby improving stability and simplifying the installation process, so that the dew removal pipe is arranged close to the mouth frame, thereby improving the heating effect.

[0017] Preferably, the mouth frame is provided with a limit plate, and the limit plate is located on both sides of the corresponding embedding groove of the mouth frame. The limit plate includes a support plate section and a supporting section, and the supporting section is fixedly connected to the support plate section. The supporting section is bent and extended toward the direction of the second pipe section relative to the support plate section. The support plate section is located at the embedding groove opening to limit the detachment of the first pipe section.

[0018] Through the above technical solution, the abutment section of the limiting plate is close to the opening of the embedding groove, so that the abutment section forms a stable supporting effect on the first pipe section to limit its downward detachment, and the supporting section bends and extends toward the second pipe section to provide further supporting effect.

[0019] Preferably, the mouth frame is provided with a positioning rod, the supporting section is provided with a positioning hole, and the positioning rod passes through the positioning hole to form a positioning.

[0020] Through the above technical solution, the positioning hole passes through the through-opening of the supporting section and contacts the positioning rod. The positioning rod is fixed to the mouth frame and extends to the positioning hole. The positioning hole and the positioning rod have the same shape and size. The positioning rod is embedded in the positioning hole, which effectively limits the horizontal swing of the positioning plate, improves safety, and further improves installation stability.

[0021] Preferably, the mouth frame is also provided with a snap-fit ​​buckle, the snap-fit ​​buckle includes a connecting portion and a supporting portion, the supporting portion is located on the side of the connecting portion away from the mouth frame, the supporting plate section is provided with a snap-fit ​​hole for the snap-fit ​​hole to be embedded, and the mouth frame is provided with a positioning protrusion, when the snap-fit ​​buckle passes through the snap-fit ​​hole, the positioning protrusion abuts against the lower end surface of the supporting section, and the supporting portion abuts against the lower end surface of the supporting plate section to form a limit.

[0022] Through the above technical scheme, a snap buckle is fixed on the mouth frame, and a corresponding snap hole is opened at the position of the abutment plate section corresponding to the snap buckle. The snap buckle is aligned with the snap hole and embedded so that the connecting part passes through the snap hole, so that the abutting part abuts against the lower end surface of the abutment plate section, thereby improving the stability of the installation of the limit plate. A positioning protrusion is fixed on the mouth frame corresponding to the limit plate, so that the limit plate is positioned by abutting against the positioning protrusion through the supporting section, thereby further improving the stability of the installation of the limit plate.

[0023] Compared with the prior art, the technical solution has the following outstanding and beneficial technical effects:

[0024] 1. The technical solution divides the condensing pipe into pipe section 1 and pipe section 2, the length ratio of pipe section 1 to pipe section 2 is between 0.2-0.5, the outlet of pipe section 1 is connected to the inlet of the de-condensing pipe, and the outlet of the de-condensing pipe is connected to pipe section 2, the hot air in pipe section 1 enters the de-condensing pipe to heat the port frame, and the temperature of the refrigerant flowing through the de-condensing pipe is increased to improve its de-condensing ability to the port frame, thereby enhancing the heat preservation performance and freezing effect of the refrigerator and preventing ice from forming on the surface of the port frame;

[0025] 2. The technical solution forms a first pipe section and a second pipe section by surrounding the dew-removing pipe on the mouth frame. The first pipe section is surrounded in an outer circle relative to the second pipe section. The inlet of the dew-removing pipe is arranged on the first pipe section, and the outlet of the dew-removing pipe is arranged on the second pipe section. The layout of the dew-removing pipe surrounded in two circles enables the dew-removing pipe to be heated more evenly around the mouth frame, thereby improving the dew-removing effect of the dew-removing pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0027] Figure 2 It is a partial explosion schematic diagram of this embodiment;

[0028] Figure 3 It is a partial exploded schematic diagram of the mouth frame in this embodiment;

[0029] Figure 4 It is a partial cross-sectional schematic diagram of this embodiment;

[0030] Figure 5 For this embodiment Figure 4 A partial enlarged schematic diagram of .

[0031] Figure numerals: 1, cabinet body; 2, cabinet door; 3, freezer compartment; 4, mouth frame; 5, installation cavity; 6, dew removal pipe; 61, first pipe section; 62, second pipe section; 7, condenser; 71, pipe section one; 72, pipe section two; 8, positioning clamp; 9, ring edge; 10, limiting portion; 11, embedded groove; 12, limiting plate; 121, abutment plate section; 122, supporting section; 13, snap buckle; 131, connecting portion; 132, abutment portion; 14, snap hole; 15, positioning protrusion; 16, positioning rod; 17, positioning hole; 18, refrigeration device. DETAILED DESCRIPTION

[0032] The specific implementation of the technical solution is further described in detail below with reference to the accompanying drawings.

[0033] Example:

[0034] See also Figure 1 A freezer dew removal structure includes a cabinet body 1, a cabinet door 2 is installed on the cabinet body 1, the cabinet door 2 is located at the upper end of the cabinet body 1, and the cabinet door 2 is hinged to the cabinet body 1 along one side of the length direction. The cabinet door 2 rotates along the hinge axis to approach or move away from the cabinet body 1 to realize a flipping action.

[0035] See also Figure 2 and Figure 4 The cabinet body 1 is provided with a freezing chamber 3, which is installed inside the cabinet body 1. The cabinet body 1 is provided with an opening frame 4, which is located at the upper end of the cabinet body 1 and is arranged around the opening of the freezing chamber 3. The opening frame 4 is detachably connected to the cabinet body 1. When the cabinet door 2 is flipped to abut against the opening frame 4, the cabinet door 2 covers the freezing chamber 3 to achieve sealed freezing.

[0036] The cabinet 1 is provided with a refrigeration device 18, which is located inside the cabinet 1 and near the lower end. The refrigeration device 18 has a condenser 7, which is used for refrigerant circulation. This example shows that the condenser 7 is zigzag arranged in the refrigeration device 18. The condenser 7 includes a pipe section 1 71 and a pipe section 2 72. The pipe section 1 71 is located at the upper end relative to the pipe section 2 72. The length ratio of the pipe section 1 71 to the pipe section 2 72 is specified to be between 0.2-0.5, so that the length of the pipe section 1 71 is less than or equal to the pipe section 2 72. This example shows that the length ratio of the pipe section 1 71 to the pipe section 2 72 is 0.3.

[0037] An installation cavity 5 is opened at the lower end of the cabinet body 1 corresponding to the opening frame 4, and the installation cavity 5 is arranged in the cabinet body 1 along the vertical direction. The opening frame 4 covers the installation cavity 5, and a dew-removing pipe 6 is arranged in the installation cavity 5. One end of the pipe section 1 71 is used to be connected to the compressor. The hot air of the refrigerant with a higher temperature discharged from the compressor enters from the inlet of the pipe section 1 71, and the outlet of the other end of the pipe section 1 71 is connected with the inlet of the dew-removing pipe 6. The hot air enters the dew-removing pipe 6 along the pipe section 1 71, and the outlet of the dew-removing pipe 6 is connected with the inlet of the pipe section 2 72. The hot air enters the pipe section 2 72 along the dew-removing pipe 6 for heat exchange.

[0038] See also Figure 3 and Figure 5 The dew-removing pipe 6 includes a first pipe section 61 and a second pipe section 62. The first pipe section 61 extends along the cabinet body 1 to the mouth frame 4 and is arranged around the mouth frame 4 in a circle. The inlet of the dew-removing pipe 6 is arranged at the first pipe section 61. The second pipe section 62 is connected to the first pipe section 61. The second pipe section 62 is arranged around the mouth frame 4 as a second circle. The outlet of the dew-removing pipe 6 is arranged at the second pipe section 62. The second pipe section 62 is located on the inner side relative to the first pipe section 61. The mouth frame 4 is provided with a plurality of positioning clips 8. Each positioning clip 8 is arranged corresponding to the second pipe section 62 and protrudes and is fixed to the side wall of the mouth frame 4. The plurality of positioning clips 8 are used to support and fix the second pipe section 62.

[0039] The mouth frame 4 is provided with an annular edge portion 9, which is arranged corresponding to the mouth frame 4 and fixed to the lower end surface of the mouth frame 4, and the annular edge portion 9 extends into the installation cavity 5. The first pipe segment 61 is arranged in a direction corresponding to the inner side of the annular edge portion 9. The mouth frame 4 is also provided with limiting portions 10 on both sides, and the two limiting portions 10 both extend into the installation cavity 5. Inlay grooves 11 for the first pipe segment 61 to be embedded are formed between the limiting portions 10 and the annular edge portions 9 on both sides, so that the limiting portions 10 on both sides form horizontal limits corresponding to the first pipe segment 61.

[0040] The mouth frame 4 is provided with a limit plate 12, the limit plate 12 is located in the installation cavity 5, and there are two limit plates 12, which are respectively located on both sides of the mouth frame 4, and the two limit plates 12 include a plate section 121 and a supporting section 122, the plate section 121 is fixedly connected to the supporting section 122, and the supporting section 122 is bent and extended relative to the plate section 121 in a direction close to the second pipe section 62, and the upper end surface of the plate section 121 is parallel to the upper end surface of the supporting section 122, and the two sides of the mouth frame 4 are fixed. There are multiple positioning protrusions 15, and the multiple positioning protrusions 15 cooperate with the lower end surface of the supporting section 122 to form a limit. The mouth frame 4 is also provided with a positioning rod 16, and there are multiple positioning rods 16. This example shows that two positioning rods 16 are spaced apart on both sides of the mouth frame 4, and each positioning rod 16 extends in the direction of the supporting section 122. The supporting section 122 is provided with a positioning hole 17 for the positioning rod 16 to be embedded in corresponding to the positioning rod 16, and the positioning rod 16 is embedded in the corresponding positioning hole 17 to achieve positioning.

[0041] The two abutment sections 121 correspond one-to-one to the two embedding grooves 11, and the position of the abutment section 121 corresponding to the embedding groove 11 is close to limit the detachment of the first pipe section 61 in the vertical direction. The mouth frame 4 is provided with a plurality of snap-fit ​​buckles 13, each snap-fit ​​buckle 13 extends toward the direction of the abutment section 121, and each snap-fit ​​buckle 13 includes a connecting portion 131 and a supporting portion 132, and the supporting portion 132 is located on the side of the connecting portion 131 away from the mouth frame 4, and the supporting portion 132 is fixedly connected to the connecting portion 131. A snap-fit ​​hole 14 for the snap-fit ​​buckle 13 to be embedded is provided at the position of the abutment section 121 corresponding to the snap-fit ​​buckle 13, and when the snap-fit ​​buckle 13 passes through the snap-fit ​​hole 14, the connecting section is located in the snap-fit ​​hole 14, and the lower end surface of the abutment section 121 is against the supporting portion 132.

[0042] The specific working process of this program is as follows:

[0043] In the technical solution, a mouth frame 4 is installed around the opening of the freezer chamber 3, and the cabinet door 2 can be pressed against the mouth frame 4 along the hinge axis to cover the freezer chamber 3. The cabinet body 1 is provided with an installation cavity 5 at the lower end corresponding to the mouth frame 4. The dew-removing pipe 6 is located in the installation cavity 5. The refrigerant flows along the internal flow channel of the condenser tube 7 and continuously loses heat. The condenser tube 7 is divided into a tube section 1 71 and a tube section 2 72. The refrigerant in a high-temperature gas state enters the tube section 1 71 and enters the first tube section 61 from the outlet of the tube section 1 71. The refrigerant flows along the first tube section 61. The first pipe section 61 flows to the second pipe section 62, so that the refrigerant first flows through the dehumidification pipe 6 to achieve dehumidification during heat exchange, and enters the second pipe section 72 from the outlet of the second pipe section 62, so that the refrigerant flows through the second pipe section 72 to complete the heat exchange and then achieve refrigeration. The length ratio of the first pipe section 71 to the second pipe section 72 is between 0.2-0.5, which increases the temperature of the refrigerant flowing through the dehumidification pipe 6, ensures that the dehumidification pipe 6 has sufficient heat, and improves its dehumidification ability for the port frame 4, thereby enhancing the thermal insulation performance and freezing effect of the refrigerator and preventing ice from forming on the surface of the port frame 4.

[0044] The above shows and describes the basic principle and main features of the technical solution and the advantages of the technical solution. The technicians in this industry should understand that the technical solution is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the technical solution. Without departing from the spirit and scope of the technical solution, the technical solution will have various changes and improvements, which fall within the scope of the technical solution to be protected. The scope of protection claimed by the technical solution is defined by the attached claims and their equivalents.

Claims

1. A freezer dew removal structure, comprising a cabinet body (1) and a cabinet door (2) hinged to the cabinet body (1), characterized in that: The cabinet (1) is provided with a freezing chamber (3), the cabinet door (2) is used to cover the freezing chamber (3), an opening frame (4) is formed at the upper end of the cabinet (1) around the opening of the freezing chamber (3), the cabinet (1) is provided with an installation cavity (5) on the inner side surface corresponding to the opening frame (4), a de-condensation pipe (6) is arranged in the installation cavity (5), the cabinet (1) is also provided with a refrigeration device (18), the refrigeration device (18) has a condensation pipe (7), the condensation pipe (7) comprises a pipe section 1 (71) and a pipe section 2 (72), the outlet of the pipe section 1 (71) is connected to the inlet of the de-condensation pipe (6), and the outlet of the de-condensation pipe (6) is connected to the pipe section 2 (72), and the hot air in the pipe section 1 (71) enters the de-condensation pipe (6) to heat the opening frame (4).

2. The refrigerator dew removal structure according to claim 1, characterized in that: The length ratio of the pipe section 1 (71) to the pipe section 2 (72) is between 0.2 and 0.

5.

3. The refrigerator dew removal structure according to claim 1, characterized in that: The opening frame (4) is detachably connected to the cabinet (1).

4. The refrigerator dew removal structure according to claim 1, characterized in that: The dew removal pipe (6) is formed with a first pipe section (61) and a second pipe section (62) around the mouth frame (4); the first pipe section (61) is connected to the second pipe section (62) and surrounds the outside of the second pipe section (62); the mouth frame (4) is provided with a positioning clamp (8); the positioning clamp (8) is used for supporting the second pipe section (62); the inlet of the dew removal pipe (6) is arranged at the first pipe section (61), and the outlet of the dew removal pipe (6) is arranged at the second pipe section (62).

5. The refrigerator dew removal structure according to claim 4, characterized in that: The mouth frame (4) is provided with an annular edge portion (9), the annular edge portion (9) is fixed to the lower end surface of the mouth frame (4) and extends toward the installation cavity (5), the first pipe section (61) surrounds along the inner side of the annular edge portion (9), and the mouth frame (4) is also provided with limiting portions (10) on both sides, and embedding grooves (11) for the first pipe section (61) to be embedded are formed between the limiting portions (10) and the annular edge portion (9) on both sides.

6. The refrigerator dew removal structure according to claim 5, characterized in that: The mouth frame (4) is provided with a limiting plate (12), and the limiting plate (12) is located on both sides of the mouth frame (4) corresponding to the embedded groove (11), and the limiting plate (12) includes a support plate section (121) and a supporting section (122), and the supporting section (122) is fixedly connected to the supporting plate section (121), and the supporting section (122) is bent and extended toward the direction of the second pipe section (62) relative to the supporting plate section (121), and the supporting section (122) is located at the opening of the embedded groove (11) to limit the first pipe section (61) from detaching.

7. The refrigerator dew removal structure according to claim 6, characterized in that: The mouth frame (4) is provided with a positioning rod (16), the supporting section (122) is provided with a positioning hole (17), and the positioning rod (16) passes through the positioning hole (17) to form a positioning.

8. The refrigerator dew removal structure according to claim 6, characterized in that: The mouth frame (4) is further provided with a snap-fit ​​buckle (13), the snap-fit ​​buckle (13) comprising a connecting portion (131) and a supporting portion (132), the supporting portion (132) being located on a side of the connecting portion (131) away from the mouth frame (4), the supporting plate section (121) being provided with a snap-fit ​​hole (14) for the snap-fit ​​buckle (13) to be embedded, the mouth frame (4) being provided with a positioning protrusion (15), when the snap-fit ​​buckle (13) passes through the snap-fit ​​hole (14), the positioning protrusion (15) is abutted against the lower end surface of the supporting section (122), and the supporting portion (132) is abutted against the lower end surface of the supporting plate section (121) to form a limit position.

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