Refrigerator

Abstract

The utility model discloses a refrigerator which comprises a compressor, a shell and a frequency conversion electric control box. A machine bin is formed in the shell; the machine room is provided with an accommodating space; the compressor is fixedly arranged in the machine room; the variable-frequency electric control box comprises a box body, a cover body and a circuit board; the box body is square, an opening is formed in one side of the box body, and the box body comprises a bottom plate and a plurality of side plates; the circuit board is fixedly mounted in the box body; the cover body is fixedly connected with the box body and is used for covering the opening; a plurality of open through holes which are located in the outer sides of the side plates and are parallel to the side plates and / or the bottom plate are formed in the box body, and openings of the open through holes face the outer sides of the side plates; the frequency conversion electric control box is fixed in the machine room through the opening through holes. Screws or bolts can be installed in the engine room in advance, then the engine room is connected with the screws or the bolts through the openings of the opening through holes, the assembling difficulty is lowered, and the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration and freezing equipment, in particular to a refrigerator. Background Art

[0002] Fixed frequency control means that the AC power is sent to the compressor through a fixed frequency controller. The speed is proportional to the power frequency and the speed cannot be adjusted. Variable frequency control is to adjust the compressor speed by changing the power frequency through the inverter, thereby achieving the effect of adjustable speed. The inverter can adjust the speed of the compressor as needed to achieve higher efficiency and more stable working state.

[0003] The existing commercial refrigerator compressors are mainly fixed frequency, which can no longer meet the requirements of energy conservation and environmental protection as society increases. Variable frequency compressors in commercial refrigerators have not been well promoted and applied. In addition to the relatively high cost, there is no good design solution for the installation efficiency and versatility, heat dissipation, electromagnetic compatibility and other issues of the inverter installation and application in commercial refrigerators.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] In view of the installation efficiency, versatility and heat dissipation problems of the variable frequency compressor applied to refrigerators mentioned in the background technology, the utility model proposes a refrigerator, which simplifies the installation of the variable frequency electric control box and improves the heat dissipation of the variable frequency electric control box by separately arranging the compressor and the variable frequency electric control box, thereby improving the assembly efficiency and operation reliability of the refrigerator.

[0006] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0007] A refrigerator, comprising a compressor, a housing, and a frequency conversion electric control box;

[0008] The housing forms a cabin; the cabin has a storage space; the compressor is fixedly arranged in the cabin;

[0009] The variable frequency electric control box includes a box body, a cover body, and a circuit board; the box body is square and has an opening on one side; the circuit board is fixedly installed in the box body; the cover body is fixedly connected to the box body and is used to cover the opening; the box body includes multiple side panels and a bottom plate; a plurality of open through holes are formed on the box body, which are located on the outside of the side panels and parallel to the side panels and / or the bottom plate, and the openings face the outside of the side panels; the variable frequency electric control box is fixed in the machine compartment through each of the open through holes.

[0010] In some specific embodiments, each of the opening through holes is U-shaped, and protrudes outward from the side plate or the bottom plate, or is flush with the side plate or the bottom plate, or protrudes from the side plate and is flush with the bottom plate.

[0011] In some specific embodiments, the circuit board includes a filter capacitor, a power element, and a heat conductor; the filter capacitor is an electrolytic capacitor; the power element is located on one side of the circuit board; the filter capacitor is located on the other side of the circuit board; the heat conductor is connected to the power element;

[0012] The cover body is made of metal material, which adapts to the height of the filter capacitor and the heat conductive component to form a step connecting the two ends of the cover body; it includes a first step and a second step, which correspond to the heat conductive component and the filter capacitor respectively, and the height of the first step relative to the bottom plate is smaller than the height of the second step relative to the bottom plate; the heat conductive component is connected to the first step by a thermal conductive adhesive.

[0013] In some specific embodiments, the circuit board further includes a control element, which is located on the same side of the circuit board as the power element;

[0014] The heat-conducting member is a heat-conducting profile, which is connected to the control element via a heat-conducting adhesive.

[0015] In some specific embodiments, a first groove which is connected and adapted to the heat conductive member and is concave inward is formed at a position corresponding to the heat conductive member on the first step, and includes a groove bottom and a groove wall; the outer side of the groove bottom is connected to the heat conductive member through a heat conductive adhesive;

[0016] The groove wall is gradually tightened from outside to inside.

[0017] In some specific embodiments, the edges of the cover body are formed with inward folds;

[0018] The edges around the opening are formed with a second groove whose opening direction is the same as the orientation direction of the opening; the folded edge is installed in the second groove.

[0019] In some specific embodiments, a sealing gasket is further included, which is adapted to be installed in the second groove and is installed in the second groove;

[0020] The folded edge tends to be perpendicular to the first step and the second step, and is connected to the sealing gasket.

[0021] In some specific embodiments, it further includes a condenser and a condensing fan, which are fixedly arranged in the machine compartment;

[0022] The machine compartment is square and is located at the lower end of the shell; an air inlet and an air outlet are respectively formed on a set of opposite side panels of the machine compartment; the condenser is located on the inner side of the air inlet; the compressor is located on the inner side of the air outlet; the condensing fan is longitudinally arranged on the inner side of the condenser and is located between the compressor and the condenser;

[0023] The variable frequency electric control box is distributed transversely to the condensing fan and the condenser and is located on one side thereof; the cover body faces the condensing fan, and the first step is close to the condensing fan; the second step is far away from the condensing fan.

[0024] In some specific embodiments, a wiring groove is formed in the box body along at least two adjacent sides of the bottom plate; a wire outlet is formed on the box body at at least one end of the wiring groove, which is a through hole or an open through hole;

[0025] The circuit board includes a PFC terminal, a three-phase output terminal, a power supply terminal, and a ground terminal; connecting wires respectively connected to the PFC terminal, the three-phase output terminal, the power supply terminal, and the ground terminal are led out from the outlet along the wiring groove.

[0026] In some specific embodiments, the box body further includes a plurality of stoppers, which are plate structures or column structures, are arranged on the inner side of the edge of the bottom plate, and one end is fixedly connected to the bottom plate to form the wiring groove;

[0027] A third groove with two connected ends is formed along the length direction of the wiring groove and is used to place the magnetic ring.

[0028] The refrigerator of the utility model is provided with a compressor and a variable frequency electric control box separately and a plurality of opening through holes on the box body which are located on the outside of the side panel and parallel to the side panel or the bottom panel, so that when the variable frequency electric control box is installed, screws or bolts can be connected to the mounting bracket or the inner wall of the cabin in advance, and then the opening through holes on the variable frequency electric control box are connected with the screws or bolts through the openings, and the variable frequency electric control box is fixedly connected to the mounting bracket or the inner wall of the cabin by tightening the screws or bolts; the pre-installed screws or bolts can prevent the screws or bolts of the variable frequency electric control box from being positioned and installed at the same time, reducing the difficulty of installing the variable frequency electric control box, thereby improving the assembly efficiency of the refrigerator; improving the versatility of the variable frequency electric control box and reducing costs. In addition, the variable frequency electric control box and the compressor are separately provided and installed, which reduces the difficulty of heat dissipation and cooling of the variable frequency electric control box, improves the heat dissipation efficiency and effect, and improves the reliability of the operation of the refrigerator.

[0029] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 is a schematic structural diagram of a refrigerator according to an embodiment;

[0032] Figure 2 is a schematic structural diagram of a refrigerator according to an embodiment;

[0033] Figure 3 is a schematic diagram of a transverse cross-sectional structure of a refrigerator according to an embodiment;

[0034] Figure 4 is a schematic structural diagram of a frequency conversion electric control box according to an embodiment;

[0035] Figure 5 is a schematic structural diagram of a frequency conversion electric control box according to an embodiment;

[0036] Figure 6 A partial structural schematic diagram of a frequency conversion electric control box according to an embodiment;

[0037] Figure 7 A partial structural schematic diagram of a frequency conversion electric control box according to an embodiment;

[0038] Figure 8 is a schematic diagram of a top view of a frequency conversion electric control box according to an embodiment;

[0039] Fig. 9 is a schematic diagram of a test structure of a variable frequency electric control box according to an embodiment;

[0040] Fig.10 A schematic longitudinal cross-sectional structure diagram of a frequency conversion electric control box according to an embodiment;

[0041] Fig.11 It is a schematic diagram of the longitudinal cross-sectional structure of the frequency conversion electric control box according to the embodiment.

[0042] Reference numerals,

[0043] 1. Shell; 2. Compressor; 3. Condenser; 4. Condensing fan; 5. Frequency conversion electric control box; 11. Cabin; 111. Air inlet; 112. Air outlet; 51. Box body; 511. Side panel; 512. Bottom plate; 513. Open through hole; 514. Wiring groove; 515. Limiter; 516. Third groove; 517. Outlet; 518. Second groove; 519. Opening; 52. Cover; 521. First step; 522. Second step; 523. First groove; 524. Folding edge; 525. Groove bottom; 53. Circuit board; 531. Filter capacitor; 532. Heat conductor; 533. PFC terminal; 534. Three-phase output terminal; 535. Power terminal; 536. Ground terminal. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0050]

Refrigerator Principle

[0051] The refrigerator performs a refrigeration cycle of the refrigerator by using a compressor 2, a condenser 3, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation.

[0052] The low-temperature and low-pressure refrigerant enters the compressor 2, which compresses it into a high-temperature and high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser 3. The condenser 3 condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0053] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser 3 into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the low-temperature and low-pressure refrigerant gas to the compressor 2. The evaporator can achieve a refrigeration effect by utilizing the latent heat released by the evaporation of the refrigerant to exchange heat with the material or space to be cooled. In the refrigerator, the latent heat released by the evaporation of the refrigerant in the evaporator is used to cool the refrigerated or frozen space of the refrigerator.

[0054]

This application

[0055] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 The utility model discloses a refrigerator, which comprises a compressor 2 and a shell 1; the compressor 2 is a variable frequency compressor 2, which is used for compressing gas refrigerant.

[0056] The housing 1 forms a cabin 11 having an accommodation space for accommodating the compressor 2 , and the compressor 2 is fixedly arranged in the cabin 11 .

[0057] The refrigerator also includes a variable frequency electric control box 5, which includes a box body 51, a cover body 52, and a circuit board 53; the box body 51 is square, with an opening 519 on one side, and includes multiple side panels 511 and a bottom panel 512; the side panels 511 are connected end to end in sequence, and one end of each side panel 511 is fixedly connected to the bottom panel 512 to form a box body 51 with an accommodating hole; the circuit board 53 is fixed in the box body 51; the cover body 52 is detachably fixedly connected to the box body 51 to cover the opening 519.

[0058] A plurality of opening through holes 513 are formed on the box body 51, which are located on the outer side of the side plate 511 and parallel to the side plate 511 and / or the bottom plate 512; there are at least two opening through holes 513 parallel to the side plate 511; the openings of the opening through holes 513 parallel to the side plate 511 face the outer side of the corresponding side plate 511; there are at least two opening through holes 513 parallel to the bottom plate 512; the openings of the opening through holes 513 parallel to the bottom plate 512 face the outer side of the side plate 511.

[0059] A mounting bracket is provided in the machine compartment 11 , on which through holes or screw holes corresponding to the opening through holes 513 are formed. The opening through holes 513 are respectively connected to the corresponding through holes or screw holes, so that the frequency conversion electric control box 5 is fixed in the machine compartment 11 .

[0060] Or through holes or screw holes corresponding to the opening through holes 513 are formed on the inner wall of the machine chamber 11 , and the opening through holes 513 are respectively connected to the through holes or screw holes on the inner wall of the machine chamber 11 , so that the frequency conversion electric control box 5 is fixedly connected to the machine chamber 11 .

[0061] The refrigerator of the utility model is provided with a plurality of opening holes 513 on the outer side of the side plate 511 and parallel to the side plate 511 or the bottom plate 512 by separating the compressor 2 and the variable frequency electric control box 5 and providing a plurality of opening holes 513 on the box body 51, which are located on the outer side of the side plate 511 and parallel to the side plate 511 or the bottom plate 512, so that when the variable frequency electric control box 5 is installed, the screws or bolts can be connected with the mounting bracket or the inner wall of the machine room 11 in advance, and then the opening holes 513 on the variable frequency electric control box 5 are connected with the screws or bolts through the openings, and the variable frequency electric control box 5 is fixedly connected with the mounting bracket or the inner wall of the machine room 11 by tightening the screws or bolts; the pre-installation of screws or bolts can prevent the screws or bolts of the variable frequency electric control box 5 from being positioned and installed at the same time, reduce the installation difficulty of the variable frequency electric control box 5, and thus improve the assembly efficiency of the refrigerator; improve the versatility of the variable frequency electric control box 5 and reduce the cost. In addition, the variable frequency electric control box 5 and the compressor 2 are separately provided and installed, which reduces the difficulty of heat dissipation and cooling of the variable frequency electric control box 5, improves the heat dissipation efficiency and effect, and improves the reliability of the operation of the refrigerator.

[0062] The specific structure and principle of the refrigerator of the present invention are described in detail below through specific embodiments.

[0063] In some specific embodiments, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 The opening through holes 513 are all U-shaped and protrude from the side plates 511 or the bottom plates 512 in a direction parallel to the side plates 511 or the bottom plates 512, so that when the frequency conversion electric control box 5 is connected to the mounting frame or the inner wall of the machine chamber 11, the side plates 511 or the bottom plates 512 are separated from the mounting frame or the inner wall of the machine chamber 11, thereby reducing the vibration transmission from the machine chamber 11 to the frequency conversion electric control box 5.

[0064] It also includes screws or bolts, which respectively connect each open through hole 513 with the corresponding through hole or screw hole to fix the frequency conversion electric control box 5 in the machine compartment 11.

[0065] In some specific embodiments, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 The opening through holes 513 are all U-shaped and are arranged flush with the side plate 511 or the bottom plate 512 .

[0066] It also includes screws or bolts, which respectively connect each open through hole 513 with the corresponding through hole or screw hole to fix the frequency conversion electric control box 5 in the machine compartment 11.

[0067] Of course, each opening through hole 513 may also protrude from the side plate 511 and be flush with the bottom plate 512 , or be flush with the side plate 511 and protrude from the bottom plate 512 .

[0068] In some specific embodiments, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 The circuit board 53 includes a filter capacitor 531, a power element, and a heat conductor 532; the filter capacitor 531 is an electrolytic capacitor used for filtering. Since it filters the driving voltage of the compressor 2, it has a large volume and a high height.

[0069] The filter capacitor 531 is located on one side of the circuit board 53, and the heat conductor 532 is connected to the power element; the power element is located on the other side of the circuit board 53; that is, the filter capacitor 531, the power element, and the heat conductor 532 are located on the same side of the circuit board 53; the filter capacitor 531 is located on one side of the circuit board 53, and the power element and the heat conductor 532 are located on the other side of the circuit board 53.

[0070] The cover body 52 is made of metal material, and it adapts to the height of the filter capacitor 531 and the heat conductive member 532 to form a step connecting the two ends of the cover body 52; that is, the cover body 52 includes a first step 521 and a second step 522; the height of the first step 521 relative to the bottom plate 512 is lower than the height of the second step 522 relative to the bottom plate 512, and corresponds to the heat conductive member 532 and the filter capacitor 531 respectively, adapts to the height of the heat conductive member 532 and the filter capacitor 531, and is connected to the heat conductive member 532 by thermal conductive adhesive.

[0071] The refrigerator of this embodiment separates the filter capacitor 531 and the heat conductor 532 on both sides of the same surface of the circuit board 53, which facilitates the design of the shape of the cover 52, so that it can adapt to the higher filter capacitor 531 and the lower heat conductor 532 respectively, and is connected to the heat conductor 532 to conduct and dissipate heat for the heat conductor 532 and the power element, increase the heat dissipation area, improve the heat dissipation efficiency, and thus improve the operating reliability of the power element.

[0072] In some specific embodiments, the heat conducting member 532 is made of aluminum profile.

[0073] In some specific embodiments, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 The circuit board 53 also includes a control element, which is located on the same side of the circuit board 53 as the power element and is connected to the heat conducting member 532 via a heat conducting adhesive.

[0074] The refrigerator of this embodiment arranges the power element and the control element on the same side of the same surface of the circuit board 53 and connects them to the heat conductor 532 respectively, so that the heat conductor 532 conducts and dissipates heat for the power element and the control element, thereby improving the utilization rate of the heat conductor and the reliability of the operation of the control element.

[0075] In some specific embodiments, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 A first groove 523 is formed on the first step 521 at a position corresponding to the heat conductive member 532 and is concave inwardly and is connected and adapted to the heat conductive member 532 . The first groove 523 includes a groove bottom 525 and a groove wall. The outer side of the groove bottom 525 is connected to the heat conductive member 532 via a thermal conductive adhesive.

[0076] The groove wall of the first groove 523 is connected to the groove bottom 525 in a trend of gradually tightening from the outside to the inside, so that the groove bottom 525 has adjustable elasticity relative to the first step 521, and the outer side of the groove bottom 525 is adjustable when connected to the heat conducting member 532, thereby improving the assembly performance of the variable frequency electric control box 5.

[0077] In some specific embodiments, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 The edges of the cover body 52 are formed with inward folded edges 524 .

[0078] The refrigerator of this embodiment improves the strength of the cover body 52 by forming inward folds 524 on the edges of the cover body 52, reduces the deformation rate of the cover body 52, improves the connection rate between the groove bottom 525 of the second step 522 or the first groove 523 and the heat conducting member 532, and improves the thermal conductivity and heat dissipation efficiency.

[0079] In some specific embodiments, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 The edges around the opening 519 of the box body 51 are formed with a second groove 518 whose opening direction is the same as that of the opening 519 of the box body 51 ; the folded edge 524 is installed in the second groove 518 .

[0080] In addition, the cover body 52 is installed in the second groove 518 around the edges of the opening 519 through the folded edges 524 around the edges to improve the sealing of the connection between the cover body 52 and the box body 51 and improve the protection level.

[0081] In some specific embodiments, the electric control box further includes a sealing gasket, which is adapted to be installed in the second groove 518 and is installed in the second groove 518 .

[0082] The folded edge 524 tends to be arranged perpendicular to the second step 522 or the second step 522, which is installed in the second groove 518 and connected to the sealing gasket.

[0083] The refrigerator of this embodiment has a sealing gasket disposed in the second groove 518 of the box body 51 , and the folded edge 524 is connected to the sealing gasket, thereby improving the sealing performance of the connection between the cover body 52 and the box body 51 , thereby improving the protection level of the variable frequency electric control box 5 .

[0084] In some specific embodiments, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 The machine compartment 11 is square and is located at the lower end of the shell 1; the refrigerator also includes a condenser 3 and a condensing fan 4, which are respectively fixedly arranged in the machine compartment 11; the condenser 3 is connected to the compressor 2 through a refrigerant pipeline and is used to condense the high-temperature and high-pressure refrigerant discharged from the compressor 2; the condensing fan 4 is used to accelerate the air flow around the condenser 3 and assist the condenser 3 in heat exchange.

[0085] An air inlet 111 and an air outlet 112 are respectively formed on a group of opposite side panels 511 of the machine room 11; the condenser 3 is located on the inner side of the air inlet 111; the compressor 2 is located on the inner side of the air outlet 112; the condensing fan 4 is longitudinally arranged on the inner side of the condenser 3, and is located between the compressor 2 and the condenser 3, forming an air path consisting of the air inlet 111, the condenser 3, the condensing fan 4, the compressor 2, and the air outlet 112, which assists the condenser 3 in heat exchange and dissipates heat for the compressor 2.

[0086] The variable frequency electric control box 5 is distributed laterally with the condensing fan 4 and the condenser 3, and is located on one side of the condensing fan 3 and the condensing fan 4, and between the condenser 3 and the compressor 2; the cover body 52 faces the condensing fan 4, and the first step 521 is close to the condensing fan 4, and the second step 522 is far away from the condensing fan 4.

[0087] The refrigerator of this embodiment has the cover 52 of the variable frequency electric control box 5 facing the condenser 3 and the condensing fan 4 and is located in the wind path of the condensing fan 4, so that the condensing fan 4 assists the condenser 3 in heat exchange and the compressor 2 in heat dissipation while dissipating the heat for the variable frequency electric control box 5, thereby improving the heat dissipation performance of the variable frequency electric control box 5 and improving the reliability of the operation of the refrigerator.

[0088] In addition, the first step 521 is close to the condensing fan 4 and the second step 522 is far away from the condensing fan 4 so that the height of the second step 522 does not block the wind flow, thereby improving the wind flow efficiency and further improving the heat dissipation efficiency of the cover body 52 and the variable frequency electric control box 5.

[0089] In some specific embodiments, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 A wiring groove 514 is formed in the box body 51 along at least two adjacent sides of the bottom plate 512; and a wire outlet 517 is formed on the box body 51 and at least one end of the wiring groove 514, which is a through hole or an open through hole.

[0090] The circuit board 53 also includes a PFC terminal 533, a three-phase output terminal 534, a power supply terminal 535, and a ground terminal 536; the connecting wires respectively connected to the PFC terminal 533, the three-phase output terminal 534, the power supply terminal 535, and the ground terminal 536 are led out from the outlet 517 along the wiring groove 514.

[0091] The refrigerator of this embodiment provides a wiring groove 514 to make the wiring more regular, reduce the interference to the components in the circuit board 53, and improve the reliability of the circuit board 53 and the operation of the refrigerator.

[0092] Of course, the wire outlet 517 can be set on the side plate 511 or the bottom plate 512 .

[0093] The connection wires respectively connected to the PFC terminal 533 , the three-phase output terminal 534 , the power terminal 535 , and the ground terminal 536 may enter the wiring groove 514 nearby or through a suitable route.

[0094] In some specific embodiments, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 The box body 51 includes a plurality of stoppers 515 , which are plate structures or column structures, are arranged along the edge of the bottom plate 512 , and one end is fixedly connected to the inner side of the edge around the bottom plate 512 to form a wiring groove 514 .

[0095] A third groove 516 connected at both ends is formed along the length direction of the wiring groove 514 for placing a magnetic ring. The magnetic ring is used to connect to the connection line connecting the PFC terminal 533 and / or the three-phase output terminal 534 and / or the power supply terminal 535 and / or the ground terminal 536, and is used to reduce the electromagnetic interference generated by the high-frequency signal on the connection line to the outside, and improve the EMC performance of the variable frequency electric control box 5.

[0096] Of course, the magnetic ring can also be placed between the limiting members 515 in the wiring groove 514 .

[0097] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0098] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A refrigerator, comprising a compressor, characterized in that: Also includes: A housing forming an organic chamber; The cabin has a storage space; The compressor is fixedly arranged in the cabin; A variable frequency electric control box, comprising a box body, a cover body, and a circuit board; the box body is square and has an opening on one side; the circuit board is fixedly installed in the box body; the cover body is fixedly connected to the box body and is used to cover the opening; the box body comprises a plurality of side panels and a bottom panel; a plurality of open through holes are formed on the box body and are located on the outside of the side panels and are parallel to the side panels and / or the bottom panel, and the openings face the outside of the side panels; the variable frequency electric control box is fixed in the machine compartment through the open through holes.

2. The refrigerator according to claim 1, characterized in that: Each of the opening through holes is U-shaped, and is protruded outward from the side plate or the bottom plate, or is flush with the side plate or the bottom plate, or is protruded from the side plate and flush with the bottom plate.

3. The refrigerator according to claim 1, characterized in that: The circuit board includes a filter capacitor, a power element, and a heat conductor; the filter capacitor is an electrolytic capacitor; the power element is located on one side of the circuit board; the filter capacitor is located on the other side of the circuit board; the heat conductor is connected to the power element; The cover body is made of metal material, which adapts to the height of the filter capacitor and the heat conductive component to form a step connecting the two ends of the cover body; it includes a first step and a second step, which correspond to the heat conductive component and the filter capacitor respectively, and the height of the first step relative to the bottom plate is smaller than the height of the second step relative to the bottom plate; the heat conductive component is connected to the first step by a thermal conductive adhesive.

4. The refrigerator according to claim 3, characterized in that: The circuit board also includes a control element, which is located on the same side of the circuit board as the power element; The heat-conducting member is a heat-conducting profile, which is connected to the control element via a heat-conducting adhesive.

5. The refrigerator according to claim 3, characterized in that: A first groove is formed on the first step at a position corresponding to the heat conductive member and is concave inwardly and is adapted to be connected with the heat conductive member, and includes a groove bottom and a groove wall; the outer side of the groove bottom is connected to the heat conductive member through a heat conductive adhesive; The groove wall is gradually tightened from outside to inside.

6. The refrigerator according to claim 3, characterized in that: The edges of the cover body are formed with inward folded edges; The edges around the opening are formed with a second groove whose opening direction is the same as the orientation direction of the opening; the folded edge is installed in the second groove.

7. The refrigerator according to claim 6, characterized in that: Also included is a sealing gasket, which is fitted and adapted to the second groove and installed in the second groove; The folded edge tends to be perpendicular to the first step and the second step, and is connected to the sealing gasket.

8. The refrigerator according to any one of claims 3 to 7, characterized in that: It also includes a condenser and a condensing fan, which are fixedly arranged in the machine compartment; The machine compartment is square and is located at the lower end of the shell; an air inlet and an air outlet are respectively formed on a set of opposite side panels of the machine compartment; the condenser is located on the inner side of the air inlet; the compressor is located on the inner side of the air outlet; the condensing fan is longitudinally arranged on the inner side of the condenser and is located between the compressor and the condenser; The variable frequency electric control box is distributed transversely with the condensing fan and the condenser, and is located on one side thereof; The cover body faces the condensing fan, and the first step is close to the condensing fan; the second step is far away from the condensing fan.

9. The refrigerator according to claim 8, characterized in that: A wiring groove is formed in the box body along at least two adjacent sides of the bottom plate; a wire outlet is formed on the box body at at least one end of the wiring groove, which is a through hole or an open through hole; The circuit board includes a PFC terminal, a three-phase output terminal, a power supply terminal, and a ground terminal; connecting wires respectively connected to the PFC terminal, the three-phase output terminal, the power supply terminal, and the ground terminal are led out from the outlet along the wiring groove.

10. The refrigerator according to claim 9, characterized in that: The box body further comprises a plurality of stoppers, which are plate structures or column structures, are arranged on the inner side of the edge of the bottom plate, and one end is fixedly connected to the bottom plate to form the wiring groove; A third groove with two connected ends is formed along the length direction of the wiring groove and is used to place the magnetic ring.

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