CN210156192U - Refrigerator temperature control potentiometer and full-freezing air-cooling refrigerator - Google Patents

Abstract

The utility model provides a refrigerator accuse temperature potentiometre and refrigerator, refrigerator accuse temperature potentiometre includes the circuit board, electrical terminal, the potentiometre of electricity connection on the circuit board, the potentiometre includes the rotation axis, the axle sleeve, the rotor, the potentiometre body, the potentiometre pin, the rotation axis passes axle sleeve and rotor and orders about the rotor rotatory, this internal carbon sheet that is equipped with resistance circuit of potentiometre, the brush and the carbon sheet contact of rotor, the carbon sheet is connected with potentiometre pin, the below of potentiometre sets up switch unit and metal base, the switch unit includes the lid chamber, the switching shaft, the switch body, the rotation axis passes the lid chamber and drives the switching shaft rotatory, when the switching shaft rotates, contact or break away from with the switching piece of switch body, thereby make switch unit switch-on or disconnection; the shaft sleeve, the potentiometer body, the cover cavity, the switch body and the metal base are mounted in a close fit manner from top to bottom to form a composite potentiometer; the composite potentiometer is hermetically sleeved with a damp-proof sleeve. The utility model discloses the reliability is high, and is rational in infrastructure, and the product is more competitive.

Description

Refrigerator temperature control potentiometer and full-freezing air-cooling refrigerator

Technical Field

The utility model relates to a refrigerator and part technical field that adjusts the temperature thereof, more specifically say, relate to a refrigerator accuse temperature potentiometre and full-freezing forced air cooling refrigerator.

Background

In the existing refrigerator, a potentiometer is adopted as an electronic temperature controller of the refrigerator on a direct-cooling refrigerator, for example, an electronic temperature controller for the refrigerator disclosed in 7, 10.2013 and with the publication number of CN203054630U, a rotary potentiometer is adopted to replace a mechanical temperature controller comprising a capillary tube, a temperature bulb, a diaphragm capsule, an eccentric wheel and other parts, the cost is low, the precision is high, and the advantages of the traditional mechanical temperature controller in the aspects of cost and durability and the advantages of a liquid crystal display screen type electronic temperature controller in the aspect of precision are achieved. At present, potentiometers applied to refrigerators are used in the environment of a refrigerating box/chamber, but not used in full-freezing air-cooled refrigerators, because the temperature of the temperature controller in the use environment of the full-freezing air-cooled refrigerator is too low, the potentiometers are required to resist high and low temperature impact, and sufficient moisture resistance is required to be provided so as to adapt to the condition of high humidity in the refrigerator during defrosting of the refrigerator. On the other hand, when a user opens the refrigerator door, the hot air from the outside enters the refrigerator and is easily condensed to form water drops, and the temperature controller is also required to have sufficient moisture resistance. In order to reduce the material cost of products, the applicant tries to use a potentiometer for temperature adjustment of a full-freezing air-cooling refrigerator, but when the conventional potentiometer is applied to the full-freezing air-cooling refrigerator, the poor low temperature phenomenon occurs, and when the temperature in the refrigerator is 24 ℃ below zero, the output of the adjustment resistance value of partial potentiometers is not changed, so that the gear adjustment cannot be performed.

On the other hand, the temperature adjusting device and the temperature control switch of the existing refrigerator temperature controller are two components which are respectively connected with independent circuits, so that the cost of the refrigerator is increased, and more space is occupied.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wide potentiometre of application environment scope makes it normally work under abominable environment, and the weatherability is strong, and provides a full-freezing forced air cooling refrigerator who uses this potentiometre, reduces the refrigerator cost to overcome prior art's not enough.

The technical proposal of the utility model for solving the technical problem is that: the utility model provides a refrigerator accuse temperature potentiometre, is in including potentiometre circuit board, electrical terminal, electricity the potentiometre on the potentiometre circuit board, the potentiometre includes rotation axis, axle sleeve, rotor, potentiometre body, potentiometre pin, the rotation axis passes axle sleeve and rotor and orders about the rotor rotatory, this internal resistance circuit's that is equipped with carbon piece of potentiometre, the brush and the carbon piece contact of rotor, the carbon piece is connected its characterized in that with potentiometre pin: a switch unit and a metal base are arranged below the potentiometer, the switch unit comprises a cover cavity, a switching shaft and a switch body, the rotating shaft penetrates through the cover cavity and drives the switching shaft to rotate, and when the switching shaft rotates, the switching shaft is contacted with or separated from a switching sheet of the switch body, so that the switch unit is switched on or off; the shaft sleeve, the potentiometer body, the cover cavity, the switch body and the metal base are mounted in a manner of being attached to each other up and down to form a composite potentiometer; and a moisture-proof sleeve is hermetically sleeved on the composite potentiometer.

The metal base is provided with base pins which are brazed on the circuit board.

The dampproof sleeve comprises a main body, an upper edge of the shaft sleeve and a main body flanging, wherein the upper edge of the shaft sleeve is provided with an opening in the upper part of the main body, the lower edge of the main body is provided with an opening, the upper edge of the shaft sleeve is sleeved on the periphery of the shaft sleeve, the main body flanging is attached to the circuit board, and the upper edge of the shaft sleeve and the edge of the main body.

The utility model provides a full-freezing forced air cooling refrigerator, includes box, the door body, its characterized in that: the refrigerator temperature control potentiometer of any of claims 1 to 3 is further included.

The utility model discloses a lamp, including box, horizontal bar, lower horizontal bar and box inner bag, the vertical wall of horizontal bar is equipped with down the lamp holder, the lamp holder is equipped with the lamp section of thick bamboo, the lamp section of thick bamboo slope sets up, and the light beam of LED lamp is crossed the door and is sealed and the door body, obliquely cast subaerially.

And an indicating lamp wire hiding box is arranged on the inner side of the lower transverse strip close to the indicating lamp hole, and the lamp holder is clamped at the mouth of the indicating lamp wire hiding box.

The LED lamp is a straw hat lamp, and the light emitting end of the straw hat lamp is of a convex lens structure.

Still include last hinge, the hinge lid of fixed mounting on the box top, the bottom of hinge lid is uncovered, the hinge lid includes first inner chamber, second inner chamber, go up the hinge in first inner chamber, set up bee calling organ in the second inner chamber, the connecting wire of bee calling organ wears out and stretches into in the second inner chamber from the box bubble layer, the hinge lid sets up the fluting, the fluting is close to bee calling organ.

The temperature sensing device is characterized by also comprising a buzzer circuit board, wherein the buzzer circuit board is provided with a buzzer power supply circuit and a temperature sensing head input circuit; the buzzer circuit board is arranged in the second inner cavity in an elastic buckling mode.

The utility model has the advantages that:

compared with the prior art, the utility model discloses use the potentiometre to adjust the temperature on full cold air-cooling case for the first time, realize level and smooth electrodeless temperature regulation control, be a whole part with potentiometre, switch design to adopt dampproofing cover sealed the thermosistor, make its reliably work steadily, refrigerator complete machine mode science, cost that adjusts the temperature descend to some extent, make the product more competitive.

The potentiometer is adopted for temperature gear adjustment, so that the temperature is infinitely adjustable. And the switch unit is in a wave band, namely 0-gear stop is in the wave band. The overall size is greatly reduced, the occupied space is smaller, the miniaturization of the whole refrigerator is facilitated, and the temperature adjustment and shape operation are convenient for users to use the refrigerator.

The refrigerator is provided with the straw hat lamp (indicator lamp) with the optical lens structure at the lower part of the refrigerator body, and the circular light beam is obliquely emitted to the ground so as to show the power-on state of the refrigerator, so that the refrigerator has the advantages of luxury and high grade in design, and the prominent bright spots of visual angles can attract consumers better.

The refrigerator is overhead with bee calling organ and shifts out the bee calling organ alone, installs on the hinge lid, and the sound derivation direction of bee calling organ corresponds with the fluting position of hinge lid, lets sound spread more directly, makes the trouble warning mode of refrigerator more effective.

Drawings

Fig. 1 is a schematic diagram of the structure of the temperature control potentiometer of the refrigerator of the present invention.

Fig. 2 is a side view of the temperature control potentiometer of the refrigerator of the present invention.

Fig. 3 is an explosion diagram of the temperature control potentiometer of the refrigerator of the present invention.

Fig. 4 is a schematic view of the assembly structure of the indicator light of the fully-refrigerated air-cooled refrigerator of the present invention.

Fig. 5 is a schematic view of the structure of the indicator lamp holder of the fully-refrigerated air-cooled refrigerator of the present invention.

Fig. 6 is a schematic view of the structure of the indicating lamp wire-hiding box of the full-freezing air-cooling refrigerator of the present invention.

Fig. 7 is the assembly structure of the refrigerator indicator of the utility model, which is sectioned along the central line of the straw hat lamp.

Fig. 8 is the utility model discloses an assembly structure of refrigerator pilot lamp dissects the picture, dissects along the buckle of lamp stand.

Fig. 9 is a schematic view of the irradiation effect of the indicator light of the fully-refrigerated air-cooled refrigerator of the present invention.

Fig. 10 is a schematic view of the assembly structure of the overhead buzzer of the fully-refrigerated air-cooled refrigerator of the present invention.

Fig. 11 is a sectional view of the structure of the overhead buzzer of the present invention.

Fig. 12 is a schematic view of the hinge cover of the present invention.

Fig. 13 is a schematic diagram of the structure of the buzzer circuit board of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. "plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected. Can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

The utility model provides a refrigerator accuse temperature potentiometre, refer to fig. 1-3, refrigerator accuse temperature potentiometre includes potentiometre circuit board 4, electric terminal 5, electricity and connects potentiometre 6 on the potentiometre circuit board, the potentiometre includes rotation axis 7, axle sleeve 61, rotor 64, potentiometre body 65, potentiometre pin 10, the rotation axis passes axle sleeve and rotor and drives the rotor rotatory, this internal carbon piece (not shown) that is equipped with resistance circuit of potentiometre, the brush and the carbon piece contact of rotor, the carbon piece is connected with potentiometre pin, the below of potentiometre sets up switch unit and metal base 9, switch unit includes lid chamber 66, switching shaft 67, shifting block 68, switch body 8, the rotation axis passes lid chamber and drives the switching shaft rotation, when the switching shaft rotates, shifting block 68 and the switch body 8's that is connected switch piece 69 contact or break away from, thereby turning the switching unit on or off; the shaft sleeve 61, the potentiometer body 65, the cover cavity 66, the switch body 8 and the metal base 9 are closely mounted up and down to form a composite potentiometer; the composite potentiometer is hermetically sleeved with a moisture-proof sleeve 3.

As shown in fig. 3, the stop seat 62, the spring 63, the spacer, the rotating plate 64 and the potentiometer body 65 of the potentiometer are distributed from top to bottom; the stopping seat is provided with a shaft hole which is vertically communicated and allows the rotating shaft to pass through, the stopping seat rotates along with the shaft, and the stopping seat is provided with a stopping gear; the spring plate and the stop seat are arranged in a concave pit of the shaft sleeve together, the rotor 64 is disc-shaped, and the brush 641 is arranged on the rotor 64; the potentiometer body 65 is provided with a groove, a carbon sheet serving as a resistance circuit and arranged around the shaft hole is arranged in the groove, the carbon sheet is connected with the pins of the potentiometer, the brush 641 on the rotating sheet 64 is contacted with the carbon sheet of the potentiometer body 65, when the rotating sheet rotates along with the shaft, the contact position of the brush and the carbon sheet is changed, and different resistance values are output from the pins of the potentiometer.

The switch unit is arranged below the potentiometer and comprises a cover cavity 66, a switching shaft 67, a pulling block 68, a switching sheet 69 and a switch body 8 which are sequentially arranged from top to bottom. The rotating shaft 7 passes through the cover cavity 66, the switching shaft 67, the pulling block 68 and the switching piece 69, the pulling block synchronously rotates along with the switching shaft, the lower end of the pulling block is sleeved on the switch body, the switching shaft 67 rotates along with the rotating shaft, and the pulling block rotates along with the rotating shaft and is in contact with or separated from the switching piece.

The metal base 9 is provided with base pins which are brazed to the potentiometer circuit board 4. The dampproof cover includes main part 34, locates the main part upper portion open-ended axle sleeve and goes up reason 33, locates main part lower part open-ended main part turn-ups 35, the reason cover is established on the axle sleeve excircle wall and make both sealed fixed through scribbling sealed glue on the axle sleeve, the main part turn-ups pastes and leans on the potentiometre circuit board, scribbles sealed glue at the turn-ups edge of main part and makes dampproof cover and potentiometre circuit board's surface sealing be connected. The potentiometer is equivalent to a slide rheostat and is provided with 3 potentiometer pins, one pin is equivalent to a scribing sheet, and the knob for rotating the potentiometer is equivalent to moving the scribing sheet in the middle, so that the resistance value between the scribing sheet and the other two pins can be changed. Different refrigerator set temperatures are corresponded through different resistance values.

The utility model also provides a full-freezing forced air cooling refrigerator, including box 1, the door body 2, door seal 31, the refrigerator adopts foretell accuse temperature potentiometre regulating box interior temperature and switch. The temperature control potentiometer is electrically connected with a main control panel of the refrigerator, is arranged on a box body air duct cover plate of the full-freezing air-cooled refrigerator, and an adjusting knob is arranged on a rotating shaft (not shown) of the temperature control potentiometer.

In the prior art, a power indicator lamp is usually designed on a display panel of a door panel of a refrigerator, or a power indicator lamp is arranged in a refrigerating chamber of the refrigerator, so that a user can perceive that the refrigerator is in power-on operation. The above-mentioned operation indication method has been used for many years, and needs to be innovatively designed. The utility model discloses a refrigerator outwards throws the operating condition of light beam in order to show refrigerator through the pilot lamp, makes refrigerator have the bandwagon effect of innovation, accords with the aesthetics of modern trend, makes the product luxurious high-grade more. Referring to fig. 4-9, the lower transverse bar 11 is arranged at the lower part of the front side of the box body 1, the lower transverse bar 11 is of a right angle type, the vertical wall of the lower transverse bar is connected with the inner container of the box body, the lower transverse wall of the lower transverse bar is connected with the bottom plate of the box body, the lower transverse bar is a sheet metal part, when the refrigerator door is closed, the door seal of the door body 2 is attached to the vertical wall of the lower transverse bar, and the magnetic strip of the door seal is attracted with the metal lower transverse bar to ensure the sealing performance of the inner cavity of the box body and. Set up on the vertical wall of lower horizontal bar 11 and instruct lamp hole 14, instruct lamp hole 14's position to be less than the lower edge height of door seal, install lamp stand 13 on the instruction lamp hole, the lamp stand includes a lamp section of thick bamboo (31, 32), sets up the LED lamp in the lamp section of thick bamboo, and a lamp section of thick bamboo slope sets up for the light beam of LED lamp can cross the door seal 31 and the lower part of the door body 2, obliquely cast down on ground 32 (see fig. 6) to form the light shadow. In fig. 6, a denotes the incident angle of the light beam, and a suitable range of a is in the range of 15 degrees to 45 degrees. In fig. 6, a is 18 degrees. The power of the LED lamp is low, the LED lamp is used as an indicator lamp of the power-on running state of the refrigerator, and after the refrigerator is plugged with a power supply, the LED lamp is on to form beautiful light beam projection on the ground, so that the refrigerator is more attractive and superior in grade.

An indicating lamp wire hiding box 12 is arranged on the inner side of the lower transverse strip close to the indicating lamp hole, and a lamp holder 13 is clamped at the mouth of the indicating lamp wire hiding box. The power connecting wire of the LED lamp is LED into the indicating lamp from the bubble layer of the box body to hide the wire box 12, after the box body is foamed, the connecting wire of the connecting terminal of the LED lamp is connected with the power connecting wire of the indicating lamp in the wire box 12, and then the lamp holder is assembled on the box body. The LED lamp is a straw hat lamp 27, and the light-emitting end of the straw hat lamp is a convex lens structure 29. The light-emitting end of the LED is provided with an optical lens structure, most light rays are emitted out through the lens to form concentrated circular light beams, and the light-emitting effect is enhanced. The lamp holder 13 further comprises an end plate 16, a buckle 19 is arranged on the end plate, and a buckle plate 23 is arranged at the mouth of the indicator light wire hiding box 12 corresponding to the buckle. The buckle plate 23 is arranged on an inner frame bottom plate 22 of the wire box hiding opening portion of the indicator light, the reinforcing rib 24 is arranged on the buckle plate side, the reinforcing rib 24 is connected with the inner frame bottom plate 22 to enable the buckle plate 23 to have enough strength, the flange 21 is arranged on the upper edge of the wire box hiding opening portion of the indicator light, and the L-shaped clamping strip 15 is arranged on the inner side of the lamp holder end plate. A clamping groove structure is formed between the L-shaped clamping strip 15 and the end plate 16, when the lamp holder is installed, the L-shaped clamping strip 15 is inserted opposite to a flange 21 of the mouth of the wire hiding box of the indicator lamp, the end plate of the lamp holder is pressed down after the upper side of the L-shaped clamping strip is accurately positioned, and the buckle 19 is clamped on the buckle plate 23. The lamp tube comprises a first tube part 18 and a second tube part 17, the first tube part is close to the indicating lamp hole, a transparent light gathering block 28 is arranged in the first tube part, and the transparent light gathering block has a convex lens structure. The light beam is further condensed to form a circular light beam with more appropriate diameter and light intensity. A clamping groove 20 is arranged at the top of the second barrel part 17 to facilitate the positioning and installation of the straw hat lamp 27. The transparent light gathering block 28 is provided with a process hole 30. The indicator light hiding box 12 comprises an upper box body 26 and an indicator light mounting cover (not shown), the upper box body and the indicator light mounting cover are combined to form an inner cavity of the hiding box, and a plurality of foaming rib plates 25 are arranged on the outer surface of the upper box body. The foaming ribbed slab helps the indicator light hide the box and the foaming layer combines closely, and after the foaming, the indicator light hides the box of line and fixes in the foaming layer, is difficult to appear not hard up the condition.

A buzzer is commonly used as an alarm in a household refrigerator. When the refrigerator is in use, if unfavorable conditions occur, a buzzer is usually driven to sound to remind a consumer, and the consumer is timely checked and processed, and common faults are as follows: the refrigerator door is not closed tightly, the temperature is abnormal due to the conditions of overvoltage and undervoltage of a power supply, the pipeline of a refrigerating system is blocked, the starting switch is opened, the starting switch is short-circuited, the temperature switch fails, and the like. At present, most of buzzers used as alarms are arranged inside a refrigerator body, even if abnormal alarm prompts occur, the generated sound is absorbed by a bubble layer, the transmission effect is extremely poor, customer complaints are strong, and improvement is needed. The utility model discloses a refrigerator through the mounted position of rational arrangement bee calling organ, reaches higher acoustic power level when making bee calling organ report to the current situation that changes present refrigerator warning sound little, the user is difficult to hear. Referring to fig. 10-13, the upper door hinge 41 is fixed on the top of the box body and is installed on the box body shell 45, the upper door hinge is provided with a door hinge cover 40, the bottom of the door hinge cover 40 is open, the door hinge further comprises a buzzer circuit board 42, and the buzzer circuit board 42 is provided with a buzzer power supply circuit and a temperature sensing head input circuit. The door hinge cover comprises a first inner cavity 50 and a second inner cavity 49, the upper door hinge 41 is arranged in the first inner cavity, the buzzer is arranged in the second inner cavity, a connecting lead of the buzzer penetrates out of the bubble layer of the box body and extends into the second inner cavity, and the door hinge cover 40 is provided with a slot 52 which is close to the buzzer. The first and second cavities 50 and 49 are communicated with each other without a partition plate therebetween. The upper door hinge 41 is a standard component which can be commonly used on a left-side-opening refrigerator and a right-side-opening refrigerator, two hinge shaft holes 44 are arranged at the front end of the upper door hinge, and door hinge shafts are selectively installed on the appropriate hinge shaft holes of the refrigerators with different opening directions, so that the door body and the refrigerator body are rotatably connected at the top of the refrigerator body.

The door hinge line hiding sleeve 47 is further included, one end of the door hinge line hiding sleeve extends into the second inner cavity from the box body bubble layer, and the connecting lead penetrates through the door hinge line hiding sleeve and is electrically connected with the buzzer. A shim plate 46 is provided under the ceiling of the box body case 45 to reinforce the installation strength of the upper door hinge. The connecting wire of the refrigerator control circuit and the heat insulating layer of the refrigerator body are foamed together, one end of the connecting wire of the buzzer is connected with the main control board of the refrigerator, and the other end of the connecting wire passes through the foaming layer of the refrigerator body, penetrates through the door hinge wire sleeve 47, enters the second inner cavity 49 and is connected with the terminal of the circuit board, so that the normal power-on work of the circuit board is realized.

In consideration of the effectiveness of sound conduction, the buzzer is moved out independently and installed on the door hinge cover, and the sound leading-out direction of the buzzer corresponds to the slotting position of the door hinge cover, so that the sound is transmitted more directly.

The buzzer is a passive buzzer 43, and a buzzer power supply circuit and a temperature sensing head input circuit are arranged on the buzzer circuit board. The buzzer power supply circuit is used for supplying power to the passive buzzer, and the temperature sensing head input circuit is used for sampling the environment temperature.

The buzzer circuit board is additionally provided with the temperature sensor 57 which is connected with the temperature sensing head input circuit, the temperature sensor 57 is a thermosensitive element NTC and is used for detecting the ambient temperature, and the ambient temperature sensor is firstly combined on the buzzer circuit board, so that the product cost is reduced, and the space is saved.

The buzzer circuit board 42 is mounted in the second cavity 49 in a resilient snap-fit manner, and the slot 52 is provided in the side wall of the door hinge cover.

The passive buzzer is opposite to the slot, and the sound emitted by the passive buzzer is directly played from the slot, so that the sound power level basically reaches 70dB, and the requirements of most customers can be met.

And a circuit board elastic buckle 48, a circuit board wedge 53 and a plurality of circuit board positioning blocks 54 are arranged in the second inner cavity. The buzzer circuit board 42 is horizontally placed on a plurality of circuit board positioning blocks 54, one side of the buzzer circuit board is limited by a circuit board wedge 53, and the other side of the buzzer circuit board is positioned and installed by a circuit board elastic buckle 48. The door hinge cover 40 is provided with a mounting sunken seat 55 for fixing screws, and the door hinge cover 40 is also provided with a wire pressing buckle 56 for connecting wires, so that the wires are arranged orderly.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents, and all changes that can be made without inventive step are intended to be embraced therein.

Claims (9)

1. The utility model provides a refrigerator accuse temperature potentiometre, is in including potentiometre circuit board, electrical terminal, electricity the potentiometre on the potentiometre circuit board, the potentiometre includes rotation axis, axle sleeve, rotor, potentiometre body, potentiometre pin, the rotation axis passes axle sleeve and rotor and orders about the rotor rotatory, this internal resistance circuit's that is equipped with carbon piece of potentiometre, the brush and the carbon piece contact of rotor, the carbon piece is connected its characterized in that with potentiometre pin: a switch unit and a metal base are arranged below the potentiometer, the switch unit comprises a cover cavity, a switching shaft and a switch body, the rotating shaft penetrates through the cover cavity and drives the switching shaft to rotate, and when the switching shaft rotates, the switching shaft is contacted with or separated from a switching sheet of the switch body, so that the switch unit is switched on or off; the shaft sleeve, the potentiometer body, the cover cavity, the switch body and the metal base are mounted in a manner of being attached to each other up and down to form a composite potentiometer; and a moisture-proof sleeve is hermetically sleeved on the composite potentiometer.

2. The temperature-control potentiometer of a refrigerator according to claim 1, wherein: the metal base is provided with base pins, and the base pins are brazed on the potentiometer circuit board.

3. The temperature-control potentiometer of a refrigerator according to claim 2, wherein: the dampproof sleeve comprises a main body, an upper edge of the shaft sleeve, which is provided with an opening at the upper part of the main body, and a main body flanging, which is provided with an opening at the lower part of the main body, wherein the upper edge of the shaft sleeve is sleeved at the periphery of the shaft sleeve, the main body flanging is attached to a potentiometer circuit board, and the upper edge of the shaft sleeve and the edge of the main body flanging are coated with.

4. The utility model provides a full-freezing forced air cooling refrigerator, includes box, the door body, its characterized in that: the refrigerator temperature control potentiometer of any of claims 1 to 3 is further included.

5. The full-freezing air-cooled refrigerator according to claim 4, wherein: the utility model discloses a lamp, including box, horizontal bar, lower horizontal bar and box inner bag, the vertical wall of horizontal bar is equipped with down the lamp holder, the lamp holder is equipped with the lamp section of thick bamboo, the lamp section of thick bamboo slope sets up, and the light beam of LED lamp is crossed the door and is sealed and the door body, obliquely cast subaerially.

6. The full-freezing air-cooled refrigerator according to claim 5, wherein: and an indicating lamp wire hiding box is arranged on the inner side of the lower transverse strip close to the indicating lamp hole, and the lamp holder is clamped at the mouth of the indicating lamp wire hiding box.

7. The full-freezing air-cooled refrigerator according to claim 6, wherein: the LED lamp is a straw hat lamp, and the light emitting end of the straw hat lamp is of a convex lens structure.

8. The full-freezing air-cooled refrigerator according to claim 7, wherein: still include last hinge, the hinge lid of fixed mounting on the box top, the bottom of hinge lid is uncovered, the hinge lid includes first inner chamber, second inner chamber, go up the hinge in first inner chamber, set up bee calling organ in the second inner chamber, the connecting wire of bee calling organ wears out and stretches into in the second inner chamber from the box bubble layer, the hinge lid sets up the fluting, the fluting is close to bee calling organ.

9. The full-freezing air-cooled refrigerator according to claim 8, wherein: the temperature sensing device is characterized by also comprising a buzzer circuit board, wherein the buzzer circuit board is provided with a buzzer power supply circuit and a temperature sensing head input circuit; the buzzer circuit board is arranged in the second inner cavity in an elastic buckling mode.

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