A defrosting assembly for an air conditioner outdoor unit and a method of using the same

Abstract

The present invention relates to the technical field of defrosting of an air conditioner outdoor unit, and specifically to a defrosting assembly of an air conditioner outdoor unit and a method of using the same, and proposes the following technical scheme: comprising an outdoor unit body, and also comprising a defrosting mechanism for defrosting the surface of a condenser, comprising a multi-section telescopic rod, the rear end of which is fixedly connected to a round rod with a hollow structure at the upper part, the interior of which is provided with a cavity, the surface of which is sleeved with a slide cylinder, the surface of which is fixedly installed with an elastic telescopic rod; and a lifting mechanism for raising a heating plate, comprising a corrugated hose fixedly installed inside the round rod, the interior of which is provided with a push rod, the lower end of which is fixedly connected to a piston rod, and the lower end of which is fixedly installed with a matching block. The present invention can evenly heat and melt the frost condensed on the surface of the condenser tube through the coordinated use of various components, thereby ensuring that the air conditioner can heat normally.

Description

Technical Field

[0001] The invention relates to the technical field of defrosting an air conditioner outdoor unit, and in particular to a defrosting component for an air conditioner outdoor unit and a use method thereof. Background Art

[0002] The outdoor unit of the air conditioner is also called the outdoor unit; its main function is to discharge the high-temperature air in the room to the outside, so as to achieve the effect of cooling and heat dissipation. The principle is that the hot air condenses in the chassis and then is sent to the indoor unit through the pipe. This repeated cycle can achieve indoor cooling. It can also generate heat in cold weather to achieve indoor warming.

[0003] However, in cold weather, affected by the outdoor temperature and humidity, the surface temperature of the condenser tube inside the air conditioner will be lower than the air temperature during operation, thereby absorbing a large amount of moisture and causing frost. In more serious cases, it will even freeze, which will affect the evaporation and heat absorption of the refrigerant and the heating effect of the air conditioner. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides an air conditioner outdoor unit defrost assembly and a method of using the same, which can effectively solve the problem in the prior art that when the temperature of the condenser tube inside the air conditioner outdoor unit is lower than the air temperature, the surface will frost, thereby affecting the heating effect of the air conditioner.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides an air conditioner outdoor unit defrosting assembly, comprising an outdoor unit body, and a condenser installed inside the outdoor unit body, and further comprising: a mounting plate located at the front side of the condenser, a driving motor being fixedly mounted on the surface of the mounting plate;

[0007] A defrosting mechanism for defrosting the surface of a condenser comprises a multi-section telescopic rod, the rear end of which is fixedly connected to a round rod with a hollow upper structure, and the round rod is arranged inside a guide groove, a cavity is opened inside the round rod, a sliding cylinder is sleeved on the surface of the round rod, an elastic telescopic rod is fixedly installed on the surface of the sliding cylinder, and a heating plate is fixedly connected to the end of the elastic telescopic rod;

[0008] And a lifting mechanism for raising the heating plate, comprising a corrugated hose fixedly installed inside the round rod, and the corrugated hose is connected to the cavity and fixedly connected to the slide cylinder through a connecting rod, a push rod is provided inside the corrugated hose, a piston rod is fixedly connected to the lower end of the push rod, a matching block is fixedly installed at the lower end of the piston rod, a sealing gasket is provided inside the corrugated hose, and the sealing gasket is fixedly connected to the upper end of the corrugated hose through a telescopic joint.

[0009] Furthermore, an L-shaped guide groove is provided through the bottom surface of the mounting plate, a continuously bent displacement groove is provided on the surface of the mounting plate, a receiving box is provided between the mounting plate and the condenser, and two groups of extrusion blocks are provided below the mounting plate.

[0010] Furthermore, the receiving box is fixedly connected to the mounting plate, and the bottom surface of the receiving box is inclined, and the lowest point of the receiving box is connected to a drainage pipe.

[0011] Furthermore, the extrusion blocks are of a trapezoidal structure, and two groups of extrusion blocks are respectively located directly below the two ends of the guide groove.

[0012] Furthermore, the multi-section telescopic rod is located below the mounting plate, and the multi-section telescopic rod is fixedly connected to the output shaft of the driving motor.

[0013] Furthermore, the cavity is connected to the external environment through a one-way air inlet valve, vertical grooves are symmetrically provided on the surface of the round rod, and a convex rod is fixedly installed on the inner wall of the upper end of the round rod.

[0014] Furthermore, the heating plate is located between the condenser and the mounting plate, and the heating plate is electrically connected to an external power source.

[0015] Furthermore, the piston rod is arranged inside the cavity, and the lower end of the piston rod penetrates through the bottom surface of the cavity and extends to the outside.

[0016] Furthermore, the lower end of the matching block is a spherical structure, and the matching block is elastically connected to the lower end of the round rod through a connecting spring sleeved on the surface of the piston rod, and the lower end of the matching block is slidably matched with the surface of the extrusion block.

[0017] A method for using a defrosting assembly for an air conditioner outdoor unit, the method comprising the following steps:

[0018] S1: When the air conditioner is used in cold weather, the surface of the condenser installed inside it will frost due to the low outdoor temperature, which will affect the heating function of the air conditioner. When the surface of the condenser begins to frost, the drive motor will start to rotate forward, and the round rod will start to move from left to right inside the guide groove through the multi-section telescopic rod;

[0019] S2: When the round rod moves from left to right in the guide groove, it drives the elastic telescopic rod fixedly connected to the slide cylinder to start moving in the transposition groove, and at the same time drives the heating plate to move synchronously, and starts to heat the surface of the condenser;

[0020] S3: When the round rod moves to the rightmost end, the slide cylinder will start to move downward and compress the corrugated hose under the action of its own gravity and the gravity of the elastic telescopic rod and the heating plate, so as to achieve the transposition of the heating plate. At the same time, the driving motor starts to reverse and starts to drive the heating plate to move from right to left. When it moves to the leftmost end, it will fall again, and the driving motor starts to rotate forward again. S2 and S3 are repeated continuously until the slide cylinder moves to the right end of the lowest point of the transposition slot;

[0021] S4: When the slide moves to the right end of the lowest point of the transposition groove, the matching block will begin to squeeze and match with the extrusion block at the right end, which will drive the piston rod and the push rod to move upward, and the sealing gasket, which is initially in an open state, will be pushed upward by the push rod to achieve sealing of the corrugated hose. At the same time, the driving motor starts to reverse and starts to drive the round rod to move left, so that the matching block is separated from the extrusion block, and under the action of the connecting spring, the piston rod starts to reset, and the inside of the cavity starts to take in air;

[0022] S5: When the driving motor drives the round rod to move to the leftmost end, the matching block starts to squeeze with the extrusion block at the left end, thereby compressing the gas inside the cavity into the inside of the corrugated hose, so that the slide cylinder is lifted up, thereby driving the heating plate to move upward, and causing the driving motor to start to move to the rightmost end of the positive transposition slot, and then repeat this step until the corrugated hose lifts the slide cylinder to the highest point of the transposition slot, so that the convex rod pushes the sealing gasket open, so as to repeat S2, realize all-round heating, and avoid frost on the condenser surface.

[0023] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0024] 1. The defrosting mechanism of the present invention is set up, and under the action of the forward and reverse rotation of the driving motor, the round rod drives the slide cylinder to reciprocate in the transposition groove and descend during the reciprocating movement, thereby realizing the movement and transposition of the heating plate, so as to better heat the condenser surface and facilitate indoor temperature increase.

[0025] 2. The present invention sets a lifting mechanism, and when the slide moves to the right end of the lowest point of the transposition groove, the sealing gasket will start to reset and seal the corrugated hose under the action of the push rod. At the same time, the driving motor is reversed, and the corrugated hose begins to be inflated through the cooperation of the matching block and the extrusion block, thereby driving the slide to move upward, realizing the upward movement of the heating plate, uniformly heating the surface of the condenser, and achieving the purpose of defrosting, so that the air conditioner can heat normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the position structure of the mounting plate and the condenser in the present invention;

[0029] Figure 3 for Figure 2 Rear view of the structure of the middle mounting plate;

[0030] Figure 4 This is a schematic diagram of the planar structure of the mounting plate of the present invention;

[0031] Figure 5 for Figure 4 A schematic diagram of the structure enlargement in the middle;

[0032] Figure 6 for Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0033] Figure 7 It is a cross-sectional schematic diagram of the lifting mechanism in the present invention;

[0034] Figure 8 It is a schematic diagram of the cooperation between the convex rod and the sealing gasket structure in the present invention;

[0035] Fig. 9 for Figure 8 Enlarged schematic diagram of the structure at point C in the middle.

[0036] The numbers in the figure represent: 1. external unit body; 2. condenser; 3. mounting plate; 301. guide groove; 302. transposition groove; 303. receiving box; 304. extrusion block; 4. driving motor; 5. defrosting mechanism; 501. multi-section telescopic rod; 502. round rod; 5021. cavity; 5022. convex rod; 503. slide cylinder; 504. elastic telescopic rod; 505. heating plate; 6. lifting mechanism; 601. corrugated hose; 602. push rod; 603. piston rod; 604. matching block; 605. sealing gasket; 606. telescopic joint. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present invention will be further described below in conjunction with the embodiments.

[0039] Embodiment: A defrosting assembly for an air conditioner outdoor unit, such as Figure 1-Figure 9 As shown, it includes an external unit body 1, and a condenser 2 installed inside the external unit body 1, and also includes: a mounting plate 3 located on the front side of the condenser 2, and a guide groove 301 of an L-shaped structure is opened through the bottom surface of the mounting plate 3, and the guide groove 301 is provided to play a guiding and limiting role; a continuously bent displacement groove 302 is opened on the surface of the mounting plate 3, and the displacement groove 302 can limit and guide the sliding parts inside it, and at the same time realize the displacement function.

[0040] A receiving box 303 is provided between the mounting plate 3 and the condenser 2. The receiving box 303 is fixedly connected to the mounting plate 3, and the bottom surface of the receiving box 303 is inclined. The lowest part of the receiving box 303 is connected to a drain pipe. By providing the receiving box 303, the water formed by the frost on the surface of the condenser 2 when heated can be received and discharged to the outside, avoiding direct flow into the interior of the external unit body 1.

[0041] Among them, two groups of extrusion blocks 304 are provided under the mounting plate 3, and the extrusion blocks 304 are of trapezoidal structure, and the two groups of extrusion blocks 304 are respectively located directly below the two ends of the guide groove 301. By setting the extrusion blocks 304, it is convenient to extrude and match with the matching blocks 604 located under the mounting plate 3; a driving motor 4 is fixedly installed on the surface of the mounting plate 3, and the driving motor 4 is an AC motor that can be rotated forward and reverse to provide a power source for defrosting the condenser 2; it is worth noting that the driving motor 4 is controlled by a controller, and the input end of the controller is electrically connected to a temperature detector for detecting the temperature of the surface of the condenser 2, and the controller and the temperature detector are both existing technologies, so they are not shown in the figure.

[0042] Combined with Figure 2 -Attached Fig. 9, by setting a defrost mechanism 5 for defrosting the surface of the condenser 2, the frost formed on the surface of the condenser 2 can be heated, so that the condensed frost turns into water and enters the interior of the receiving box 303 and is discharged to the outside; it includes a multi-section telescopic rod 501, the multi-section telescopic rod 501 is located below the mounting plate 3, and the multi-section telescopic rod 501 is fixedly connected to the output shaft of the driving motor 4, the rear end of the multi-section telescopic rod 501 is fixedly connected to a round rod 502 with a hollow structure on the upper part, and the round rod 502 is arranged inside the guide groove 301, and by setting the multi-section telescopic rod 501, the round rod 502 can be driven to reciprocate inside the guide groove 301 following the rotation of the driving motor 4.

[0043] The round rod 502 has a cavity 5021 formed inside, and the cavity 5021 is connected to the external environment through a one-way air inlet valve. The cavity 5021 and the one-way air inlet valve are provided to facilitate the entry of external air into the cavity 5021. The surface of the round rod 502 has vertical grooves formed symmetrically to facilitate the position limiting function. A protruding rod 5022 is fixedly mounted on the inner wall of the upper end of the round rod 502. The protruding rod 5022 facilitates the opening of the sealing pad 605 disposed thereunder. A sliding cylinder 503 is sleeved on the surface of the round rod 502. The sliding cylinder 503 can be raised and lowered on the surface of the round rod 502.

[0044] Among them, an elastic telescopic rod 504 is fixedly installed on the surface of the slide 503. By setting the elastic telescopic rod 504, it can move synchronously with the round rod 502 and move inside the guide groove 301; the end of the elastic telescopic rod 504 is fixedly connected with a heating plate 505, and the heating plate 505 is located between the condenser 2 and the mounting plate 3. The heating plate 505 is electrically connected to an external power supply. By setting the heating plate 505, the frost condensed on the surface of the condenser 2 can be melted by the heat emitted by it, thereby achieving the purpose of defrosting.

[0045] Combined with Figure 2 -Attached Fig. 9 , and a lifting mechanism 6 for raising the heating plate 505, so that the heating plate 505 can move left and right while also moving up and down to achieve the purpose of uniform defrosting; including a corrugated hose 601 fixedly installed inside the round rod 502, and the corrugated hose 601 is connected to the cavity 5021, and is fixedly connected to the slide 503 through a connecting rod, the corrugated hose 601 is particularly elastic, and a one-way air outlet valve (existing technology, not shown in the figure) is provided at the connection with the cavity 5021, so that the gas inside the cavity 5021 is squeezed into the interior of the corrugated hose 601, so that the corrugated hose 601 drives the slide 503 to rise.

[0046] The corrugated hose 601 is provided with a push rod 602 inside. By providing the push rod 602, the sealing pad 605 located at the top of the corrugated hose 601 can be lifted up to achieve sealing of the corrugated hose 601. The lower end of the push rod 602 is fixedly connected with a piston rod 603. The piston rod 603 is provided inside the cavity 5021, and the lower end of the piston rod 603 penetrates the bottom surface of the cavity 5021 and extends to the outside. By providing the piston rod 603, the gas inside the cavity 5021 can be squeezed into the interior of the corrugated hose 601 by its rising.

[0047] Among them, a matching block 604 is fixedly installed at the lower end of the piston rod 603, and the lower end of the matching block 604 is a spherical structure, and the matching block 604 is elastically connected to the lower end of the round rod 502 through a connecting spring sleeved on the surface of the piston rod 603, and the lower end of the matching block 604 is slidably matched with the surface of the extrusion block 304. By setting the matching block 604 and the connecting spring, when the matching block 604 and the extrusion block 304 are slidably matched, the connecting spring will be compressed to generate a reaction force, so that the matching block 604 can be reset when the two are separated; a sealing gasket 605 is provided inside the corrugated hose 601, and the sealing gasket 605 is fixedly connected to the upper end of the corrugated hose 601 through a telescopic joint 606. The initial state of the sealing gasket 605 is an open state, and the upper end of the sealing gasket 605 is higher than the top of the corrugated hose 601, so as to better contact with the convex rod 5022; it is worth noting that the telescopic joint 606 is a prior art, which achieves the purpose of fixing through the friction between the two groups of rods.

[0048] A method for using a defrosting component of an air conditioner outdoor unit, comprising the following steps:

[0049] S1: When the air conditioner is used in cold weather, the surface of the condenser 2 installed inside the air conditioner will be frosted due to the low outdoor temperature, which will affect the heating function of the air conditioner. When the surface of the condenser 2 begins to frost, the driving motor 4 will start to rotate forward, and the round rod 502 will start to move from left to right inside the guide groove 301 through the multi-section telescopic rod 501;

[0050] S2: When the round rod 502 moves from left to right in the guide groove 301, it drives the elastic telescopic rod 504 fixedly connected to the slide cylinder 503 to start moving in the transposition groove 302, and at the same time drives the heating plate 505 to move synchronously, and starts to heat the surface of the condenser 2;

[0051] S3: When the round rod 502 moves to the rightmost end, the slide 503 starts to move downward and compress the corrugated hose 601 under the action of its own gravity and the gravity of the elastic telescopic rod 504 and the heating sheet 505, so as to achieve the transposition of the heating sheet 505. At the same time, the driving motor 4 starts to reverse and starts to drive the heating sheet 505 to move from right to left. When it moves to the leftmost end, it falls again. At the same time, the driving motor 4 starts to rotate forward again. S2 and S3 are repeated continuously until the slide 503 moves to the right end of the lowest point of the transposition groove 302.

[0052] S4: When the slide 503 moves to the right end of the lowest point of the transposition groove 302, the matching block 604 will begin to squeeze and match with the extrusion block 304 at the right end, thereby driving the piston rod 603 and the push rod 602 to move upward, and the sealing gasket 605, which is initially in an open state, is pushed upward by the push rod 602 to achieve sealing of the corrugated hose 601. At the same time, the driving motor 4 starts to reverse and starts to drive the round rod 502 to move left, so that the matching block 604 is separated from the extrusion block 304, and under the action of the connecting spring, the piston rod 603 starts to reset, and the interior of the cavity 5021 starts to take in air;

[0053] S5: When the driving motor 4 drives the round rod 502 to move to the leftmost end, the matching block 604 starts to squeeze with the extrusion block 304 at the left end, and then compresses the gas inside the cavity 5021 into the inside of the corrugated hose 601, so that the slide 503 is lifted up, and then drives the heating plate 505 to move up, and makes the driving motor 4 start to positively shift the position slot 302, and then repeat this step until the corrugated hose 601 raises the slide 503 to the highest point of the transposition slot 302, so that the protruding rod 5022 pushes the sealing gasket 605 open, so as to repeat S2, realize all-round heating, and avoid frost on the surface of the condenser 2.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air conditioner outdoor unit defrosting assembly, comprising an outdoor unit body (1), and a condenser (2) installed inside the outdoor unit body (1), characterized in that: It also comprises: a mounting plate (3) located at the front side of the condenser (2), a driving motor (4) being fixedly mounted on the surface of the mounting plate (3); and a defrosting mechanism (5) for defrosting the surface of a condenser (2), comprising a multi-section telescopic rod (501), the rear end of the multi-section telescopic rod (501) being fixedly connected to a round rod (502) having a hollow upper structure, the round rod (502) being arranged inside a guide groove (301), a cavity (5021) being provided inside the round rod (502), a sliding cylinder (503) being sleeved on the surface of the round rod (502), an elastic telescopic rod (504) being fixedly mounted on the surface of the sliding cylinder (503), and a heating plate (505) being fixedly connected to the end of the elastic telescopic rod (504); and a lifting mechanism (6) for lifting the heating plate (505), comprising a corrugated hose (601) fixedly mounted inside the round rod (502), the corrugated hose (601) being connected to the cavity (5021) and fixedly connected to the slide cylinder (503) via a connecting rod, a push rod (602) being provided inside the corrugated hose (601), a piston rod (603) being fixedly connected to the lower end of the push rod (602), a matching block (604) being fixedly mounted on the lower end of the piston rod (603), a sealing gasket (605) being provided inside the corrugated hose (601), and the sealing gasket (605) being fixedly connected to the upper end of the corrugated hose (601) via a telescopic joint (606); The bottom surface of the mounting plate (3) is provided with an L-shaped guide groove (301), the surface of the mounting plate (3) is provided with a continuously bent transposition groove (302), a receiving box (303) is provided between the mounting plate (3) and the condenser (2), and two groups of extrusion blocks (304) are provided below the mounting plate (3); The cavity (5021) is connected to the external environment via a one-way air inlet valve; vertical grooves are symmetrically provided on the surface of the round rod (502); and a convex rod (5022) is fixedly mounted on the inner wall of the upper end of the round rod (502); The heating sheet (505) is located between the condenser (2) and the mounting plate (3), and the heating sheet (505) is electrically connected to an external power source; The piston rod (603) is disposed inside the cavity (5021), and the lower end of the piston rod (603) penetrates the bottom surface of the cavity (5021) and extends to the outside; The lower end of the matching block (604) is a spherical structure, and the matching block (604) is elastically connected to the lower end of the round rod (502) via a connecting spring sleeved on the surface of the piston rod (603), and the lower end of the matching block (604) is slidably matched with the surface of the extrusion block (304).

2. The defrosting assembly for an air conditioner outdoor unit according to claim 1, characterized in that: The receiving box (303) is fixedly connected to the mounting plate (3), and the bottom surface of the receiving box (303) is arranged to be inclined, and the lowest point of the receiving box (303) is connected to a drainage pipe.

3. The defrosting assembly for an air conditioner outdoor unit according to claim 2, characterized in that: The extrusion blocks (304) are of a trapezoidal structure, and two groups of extrusion blocks (304) are respectively located directly below the two ends of the guide groove (301).

4. The defrosting assembly for an air conditioner outdoor unit according to claim 3, characterized in that: The multi-section telescopic rod (501) is located below the mounting plate (3), and the multi-section telescopic rod (501) is fixedly connected to the output shaft of the driving motor (4).

5. A method for using a defrosting assembly for an air conditioner outdoor unit, applied to the defrosting assembly for an air conditioner outdoor unit according to claim 4, characterized in that: The method of use comprises the following steps: S1: When the air conditioner is used in cold weather, the surface of the condenser (2) installed inside the air conditioner will frost due to the low outdoor temperature, which will affect the heating function of the air conditioner. When the surface of the condenser (2) begins to frost, the drive motor (4) will start to rotate forward, and the round rod (502) will start to move from left to right inside the guide groove (301) through the multi-section telescopic rod (501); S2: When the round rod (502) moves from left to right in the guide groove (301), it drives the elastic telescopic rod (504) fixedly connected to the slide cylinder (503) to start moving in the transposition groove (302), and at the same time drives the heating plate (505) to move synchronously, thereby starting to heat the surface of the condenser (2); S3: When the round rod (502) moves to the rightmost end, the slide cylinder (503) starts to move downward under the action of its own gravity and the gravity of the elastic telescopic rod (504) and the heating plate (505) and compresses the corrugated hose (601), thereby achieving the transposition of the heating plate (505). At the same time, the driving motor (4) starts to reverse and starts to drive the heating plate (505) to move from right to left. When it moves to the leftmost end, it falls again. At the same time, the driving motor (4) starts to rotate forward again. S2 and S3 are repeated continuously until the slide cylinder (503) moves to the right end of the lowest point of the transposition groove (302); S4: When the slide cylinder (503) moves to the right end of the lowest point of the transposition groove (302), the matching block (604) starts to be squeezed and matched with the extrusion block (304) at the right end, thereby driving the piston rod (603) and the push rod (602) to move upward, and the sealing pad (605) which is initially in an open state is pushed upward by the push rod (602) to achieve sealing of the corrugated hose (601). At the same time, the driving motor (4) starts to reverse and starts to drive the round rod (502) to move left, so that the matching block (604) is separated from the extrusion block (304), and under the action of the connecting spring, the piston rod (603) starts to reset, and at the same time, air starts to be taken into the cavity (5021); S5: When the driving motor (4) drives the round rod (502) to move to the leftmost end, the matching block (604) starts to squeeze with the squeezing block (304) at the left end, thereby compressing the gas inside the cavity (5021) into the inside of the corrugated hose (601), so that the slide cylinder (503) is lifted up, thereby driving the heating plate (505) to move upward, and causing the driving motor (4) to start the positive shifting groove (302) to the rightmost end, and then repeat this step until the corrugated hose (601) raises the slide cylinder (503) to the highest point of the shifting groove (302), so that the protruding rod (5022) pushes the sealing gasket (605) open, so as to repeat S2, realize all-round heating, and avoid frost on the surface of the condenser (2).

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