CN218269682U

CN218269682U - Ice making machine

Info

Publication number: CN218269682U
Application number: CN202222412436.4U
Authority: CN
Inventors: 潘彤彤; 吴宝山
Original assignee: Xindonghai Hardware & Electrical Appliance Co ltd
Current assignee: Xindonghai Hardware & Electrical Appliance Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-01-10
Anticipated expiration: 2032-09-09

Abstract

The utility model provides an ice maker, engine body shell, fan, radiator, semiconductor cooler, refrigeration body, ice chest, deicing subassembly and control circuit board, the radiator is located semiconductor cooler upper end, and with semiconductor cooler's hot junction face combines, the refrigeration body is located semiconductor cooler's lower extreme, and with semiconductor cooler's cold junction face combines, control circuit board with semiconductor cooler with the fan electricity is connected. During ice making, heat is conducted upwards through the radiator, and cold is conducted downwards to the ice making cavity, so that the natural conduction rule of cold and heat is met, and the ice making efficiency can be accelerated. After ice making is successful, entering an ice removing procedure and completing the separation of the ice blocks from the refrigerating body, so that the whole ice box is separated from the refrigerating body, the ice box filled with the ice blocks is separated to a specified position, and the purpose of automatic ice removing is realized.

Description

Ice making machine

Technical Field

The utility model relates to an ice making equipment field especially relates to an ice maker.

Background

An ice maker is a common type of ice making device. Because the ice making process needs low-temperature refrigeration, the required refrigerating capacity is large, and the refrigerating temperature is low, the ice making machine mostly adopts a mechanical compression refrigerating mode at present, and the ice making machine has the advantages of high ice making speed, large ice making quantity and the like, but has the defects of large volume, high cost and the like.

Along with the continuous improvement of living standard of people, the personalized demand continuously emerges in the present society, and special requirements such as miniaturization, intellectualization, small volume, convenient and flexible use, low cost and the like are provided for the ice machine. Ice makers using semiconductor refrigeration have appeared in the prior art, which make ice using the peltier effect of semiconductor materials. After the ice maker is made into ice cubes, the ice cubes often need to be taken out of the refrigerating body in a manual operation mode, and how to achieve the purpose that after the ice cubes are made, the ice cubes automatically separate and fall to a designated position becomes a problem to be solved.

Therefore, the prior art has defects and needs to be improved and developed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide an ice maker, which aims to solve the problem of insufficient automation in the ice-shedding process of the ice maker in the prior art.

The utility model provides a technical scheme that technical problem adopted as follows:

an ice making machine comprising: the refrigerator comprises a machine body shell, a fan, a radiator, a semiconductor refrigerator, a refrigerating body, an ice box, an ice removing assembly and a control circuit board.

The deicing assembly comprises a tray and a driving piece, the driving piece is connected with the tray to drive the tray to move up and down, and the tray is located below the ice box and used for supporting the ice box.

Further, the refrigerator is characterized by comprising a substrate and a first protruding part.

Further, the refrigerator is characterized in that a groove is formed in the side wall surface of the first protruding portion, the ice box is located below the refrigerating body, and the groove is closed after the ice box is buckled with the refrigerating body to form a hollow space.

Further, the groove is internally provided with a second bulge.

Further, the ice box is characterized in that the ice box is provided with a protrusion.

Further, the ice box is clamped on the tray.

Further, the drive member comprises:

the sleeve is arranged below the tray, the top end of the sleeve is connected with the tray, and inner threads are arranged on the inner wall of the sleeve;

the screw rod penetrates through the sleeve and is provided with an external thread matched with the internal thread;

and the output end of the motor is in driving connection with the bottom end of the screw rod so as to drive the screw rod to rotate.

Further, the tray is characterized in that the tray is provided with a drain hole;

further, the ice maker is characterized by further comprising: the waste water box is arranged below the tray and communicated with the drain hole.

Further, the ice maker is characterized by further comprising: and the temperature sensor is arranged on the refrigerating body and is electrically connected with the control circuit board.

According to the above technical scheme, the utility model discloses following advantage and positive effect have at least:

the utility model discloses in, the tray in the ice machine deicing subassembly sets up the below at the ice box to for the ice box provides the support, the tray passes through the drive up-and-down motion of driving piece. After ice making is successful, entering an ice removing procedure and completing the separation of the ice blocks from the refrigerating body, so that the whole ice box is separated from the refrigerating body, the ice box filled with the ice blocks is separated to a specified position, and the purpose of automatic ice removing is realized.

Drawings

Fig. 1 is a perspective view of an ice maker according to an embodiment of the present invention.

Fig. 2 is a sectional view of an ice maker according to an embodiment of the present invention.

Fig. 3 is a schematic view of a partial structure of an ice maker according to an embodiment of the present invention.

Fig. 4 is a schematic view illustrating a locking state of a refrigerating body and an ice box of an ice maker according to an embodiment of the present invention.

Fig. 5 is a schematic view showing a state where the refrigerating body and the ice bank of the ice maker are separated from each other according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a refrigerating body of an ice maker according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of an ice box of an ice maker according to an embodiment of the present invention.

Description of reference numerals:

100. a semiconductor ice maker; 1. a semiconductor refrigerator; 11. a cold end; 12. a hot end; 2. a heat sink; 21. a heat sink fin; 3. a fan; 4. a refrigerating body; 41. a substrate; 42. a first boss portion; 43. a second boss portion; 44. a groove; 5. an ice box; 51. a protrusion; 6. a body housing; 61. perforating; 62. an ice-taking cabin door; 63. a mounting cavity; 64. a thermal insulation layer; 7. an ice-shedding assembly; 71. a tray; 711. a drain hole; 72. a drive member; 721. a sleeve; 722. a screw; 723. a motor; 8. a waste water box; 81. a waste water box door; 9. and a water discharge pipe.

Detailed Description

Reference will now be made in detail to the 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 functions 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.

Referring to fig. 1 to 3, an ice maker 100 is provided, in which the ice maker 100 includes a semiconductor refrigerator 1, a heat sink 2, a fan 3, a refrigerator body 4, a control circuit board (not shown) electrically connected to the fan 3 and the semiconductor refrigerator 1, and an ice releasing assembly 7. For convenience of description, the width direction herein is a direction of the X axis in fig. 2, and the vertical direction or the height direction is a direction of the Y axis.

Specifically, the semiconductor Cooler 1 (also called TEC, thermo Electric Cooler) is a heat pump made by using the peltier effect of semiconductor materials. Semiconductor refrigerator 1 includes hot side 12 and cold side 11, and cold side 11 is located above hot side 12, and when semiconductor refrigerator 1 is powered on, cold side 11 temperature will decrease and hot side 12 temperature will increase.

Heat sink 2 is used to dissipate heat to hot side 12. Radiator 2 is located at hot side 12, i.e. radiator 2 is located above semiconductor cooler 1, so that heat at hot side 12 is transferred upwards through radiator 2, and heat is continuously transferred from cold side 11 to hot side 12 in a forward direction. Therefore, the heat sink 2 is arranged to dissipate heat from the hot end 12, so that the temperature of the cold end 11 can be further reduced, which is beneficial to quickening ice making of the ice maker 100.

The heat sink 2 is disposed on the hot side 12, including but not limited to the heat sink 2 directly contacting the hot side 12, the heat sink 2 and the hot side 12 being spaced apart from each other, and the heat sink 2 and the hot side 12 being indirectly contacting each other through heat dissipation silicone, heat dissipation silicone grease, etc.

The refrigerating body 4 is provided at the cold end 11 of the semiconductor refrigerator 1, i.e. the refrigerating body 4 is located below the semiconductor refrigerator 1, and therefore, the cooling energy generated at the cold end 11 of the semiconductor refrigerator 1 is transmitted downward to the refrigerating body 4, thereby lowering the temperature of the refrigerating body 4.

The refrigeration body 4 is disposed at the cold end 11 including, but not limited to, the refrigeration body 4 being in direct contact with the cold end 11, the refrigeration body 4 being spaced from the cold end 11.

Referring to fig. 4 to 7, the cooling body 4 includes a substrate 41 and a first protrusion 42.

Specifically, the side wall surface of the first protruding portion 42 forms a groove 44, the ice box 5 is arranged below the refrigerating body 4, and after the ice box is buckled with the refrigerating body 4, the groove 44 forms a closed hollow space for storing water, the temperature of the refrigerating body 4 is reduced under the action of the semiconductor refrigerator 1, and the water stored in the groove 44 becomes ice, so that ice making is realized.

Referring to fig. 6, the number of the grooves 44 is plural.

Specifically, the grooves 44 are spaced apart from each other in a direction toward the ice bank 5 from the cooling body 4, and thus, a plurality of ice cubes can be simultaneously made.

The shape of each groove 44 may be identical or the shape of each groove 44 may not be identical, i.e., there may be at least two grooves 44 that are not identical in shape.

The grooves 44 are shaped like ice cubes, the grooves 44 can be round, cylindrical, conical, square, trapezoidal or irregular, the number of the grooves 44 corresponds to the number of ice-making ice cubes, and the grooves 44 can be independent or connected with one another.

The complete ice making process is divided by cold conduction and can be subdivided into two processes, specifically, a first process: the cold is conducted by the refrigerating body 4 to the water in the recess 44 which is in contact with it (i.e. the water which is located outermost in the recess 44). The second process: the cold is conducted in the water in the groove 44. In order to make ice quickly, the semiconductor refrigerator 1 is required to generate enough cold on the refrigerating body 4, conduct the cold to the water in contact with the refrigerating body as soon as possible, and conduct the cold to the three-dimensional water body by taking the water as a cold conducting medium, so that the whole water body is lowered to below the freezing point temperature as soon as possible, and accordingly, quick freezing is completed. According to the above process, the water in the groove 44 gradually freezes from the side wall of the first protruding portion 42 facing inward.

For the first process, according to the cold quantity conduction formula Q = hS Δ T, where Q, h, S, Δ T are respectively conduction cold quantity, surface heat exchange coefficient, heat exchange area, and temperature difference, in order to increase the conduction cold quantity, the water in contact with the cooling body 4 is rapidly cooled and frozen (i.e., the temperature difference between the cooling body 4 and the water is reduced), and as can be known, increasing the contact area between the cooling body 4 and the water can rapidly reduce the temperature difference between the cooling body 4 and the water, thereby freezing the water in contact with the cooling body 4.

For the second process, the time of the second process can be reduced by reducing the conduction thermal resistance of cold in water. According to the calculation formula of conduction thermal resistance

L, S and κ are respectively the cold conduction distance, the cold conduction cross-sectional area, and the water to ice thermal conductivity ratio, so that the cold conduction thermal resistance in water can be reduced by increasing the cold conduction cross-section S and decreasing the cold conduction distance L to shorten the time of the second process, thereby achieving rapid ice making.

Referring to fig. 5 and 6, the groove 44 is provided with a second protrusion 43.

Specifically, the average size of the grooves 44 in a direction perpendicular to the direction (direction in which the X axis is located) of the refrigerant 4 toward the ice bank 5 is 10 mm to 25 mm, that is, the average size of the grooves 44 in the width direction is 10 mm to 25 mm. Since the larger the volume of ice cubes is, the longer time required for ice making is, when the average size of the grooves 44 in the width direction is 10 mm to 25 mm, the ice cubes can be made to have a suitable volume and a relatively fast ice making speed can be obtained.

The second protrusion 43 is provided in the groove 44, so that the contact surface between the water in the groove 44 and the refrigerant 4 can be increased, the time required for the first process can be reduced, and the ice making speed can be increased. In addition, the second protruding part 43 is arranged in the groove 44, and cold energy is transmitted to the three-dimensional water body from the side wall surface of the second protruding part 43 and the side wall surface of the first protruding part 42 at the same time, so that compared with the prior art that cold energy is transmitted from the side wall surface of the first protruding part 42 of the refrigerating body 4 to the center of the groove 44, the cold conducting distance can be shortened, the heat conducting resistance of the cold energy in water can be further reduced, the time required by the second process can be reduced, and the ice making speed can be further increased. Since the provision of the second protrusions 43 in the grooves 44 has a positive promoting effect on both the first process and the second process, the provision of the second protrusions 43 in the grooves 44 can significantly increase the ice making speed to improve the ice making efficiency, as compared to the reduction of only the time required for the first process or only the time required for the second process, and also has an advantage of simple structure.

The shape of the second boss 43 includes, but is not limited to, a cylinder, a cone, a square, a trapezoid, or an irregular shape.

The height of the second protruding portion 43 is less than that of the first protruding portion 42, and the height ratio of the second protruding portion 42 to the first protruding portion 42 is 0.3-0.95, i.e. the size ratio of the second protruding portion 43 to the first protruding portion 42 along the height direction is 0.3-0.95, so as to obtain a better ice making effect.

The separation process of the ice blocks and the refrigerating body 4 is ice removal, the semiconductor refrigerator 1 can be directly powered off by the ice removal, at the moment, the heat of the hot end 12 is reversely transferred to the cold end 11 and then transferred to the refrigerating body 4, and the contact surface of the ice blocks and the refrigerating body 4 is melted, so that the ice blocks are separated from the refrigerating body 4.

The direct current input of the semiconductor refrigerator 1 can be adopted for deicing, the positive polarity and the negative polarity are inverted, the semiconductor refrigerator 1 is changed from a refrigerating state to a heating state, heat is transferred from the semiconductor refrigerator 1 to the refrigerating body 4, the surface of ice blocks in contact with the refrigerating body 4 is melted, the ice blocks are separated from the refrigerating body 4, and the ice blocks separated from the refrigerating body 4 are supported by the ice box 5.

Referring to fig. 2, the ice releasing assembly 7 includes a tray 71 and a driving member 72, and the ice bin 5 can be released from the cooling body 4 by natural or forced releasing.

In particular, the method comprises the following steps of,

a natural falling mode: the tray 71 is substantially in the shape of a disk, and the tray 71 is provided below the ice bank 5 to support the ice bank 5. The size of the tray 71 is larger than that of the ice bank 5 in a direction perpendicular to the refrigerant body 4 toward the ice bank 5. The driving member 72 is used for providing power for the tray 71, and the driving member 72 is in driving connection with the tray 71 to drive the tray 71 to move up and down. When ice is made, the tray 71 is driven by the driving member 72 to move into contact with the ice bin 5 to provide support for the ice bin 5 and to allow the ice bin 5 to be completely fastened to the refrigerating body 4, thereby preventing liquid from flowing out. After ice making is successful, the tray 71 moves downwards under the driving of the driving piece 72 to be separated from the ice box 5, the distance of the downward movement is larger than or equal to the height of the ice box 5, when ice blocks are separated from the contact surface of the refrigerating body 4, and the ice box 5 loses the supporting force for supporting the ice box 5 due to the removal of the tray 71, the ice blocks and the ice box 5 fall into the tray 71 together due to the self weight and the falling space of the free falling body of the ice box 5, so that the ice box 5 filled with the ice blocks falls off the tray 71, and a user can directly take ice from the tray 71.

A forced falling mode: the tray 71 is connected with the ice box 5 in a clamping mode, the driving piece 72 is connected with the tray 71 in a driving mode, the tray 71 moves up and down under the driving of the driving piece 72, and due to the fact that the tray 71 is connected with the ice box 5 in a clamping mode, the tray 71 can drive the ice box 5 to move up and down in the downward movement process. After ice making is successful, entering an ice removing procedure, completing the separation of the ice blocks from the refrigerating body 4, and forcibly pulling the ice box 5 downwards by the driving piece 72 to separate the whole ice box 5 from the refrigerating body 4, thereby realizing ice removing.

Referring to fig. 6 and 7, the ice bin 5 is provided with a protrusion 51.

Specifically, in order to accelerate the ice cubes to fall off from the refrigerating body 4, the ice box 5 can be further provided with the protrusions 51, the protrusions 51 correspond to the grooves 44 one by one, namely one ice cube corresponds to one protrusion 51, the optimal scheme is that the protrusions 51 are arranged at the center of the ice cubes, the ice cubes are better integrated with the ice box 5 due to the arrangement of the protrusions 51, and after the ice making is completed, the ice box 5 can more easily separate the ice cubes from the refrigerating body 4.

The ice box 5 is made of rubber or plastic materials, and the materials are easier to deform, so that ice blocks can be quickly separated from the ice box 5.

Referring to fig. 2 and 3, the fan 3 is disposed at one end of the heat sink fin 21 of the heat sink 2.

Specifically, the wind direction of the fan 3 coincides with the direction of the semiconductor cooler 1 toward the heat sink 2 to add heat dissipation from the heat sink 2.

The semiconductor ice maker 100 further comprises a temperature sensor (not shown) disposed on the cooling body 4, wherein the temperature sensor is used for sensing the temperature of the cooling body 4, or the ice cubes, or the ice box 5, and when the temperature sensor detects that the temperature of the cooling body 4, or the ice cubes, or the ice box 5 reaches a set temperature threshold, the end of ice making can be prompted. The temperature sensor is electrically connected with the control circuit board, and the made ice block can be selectively separated from the refrigerating body 4 or enter a cold insulation state through program control to keep the ice block in a frozen state.

Referring to fig. 1 and 2, the semiconductor ice maker 100 further includes a body housing 6.

Specifically, the body housing 6 encloses to form an installation cavity 63, and the semiconductor refrigerator 1, the radiator 2, the fan 3 and the refrigerator 4 are all disposed in the installation cavity 43. The top of the body case 6 is provided with a perforation 61 corresponding to the fan 3, so that the hot air output from the fan 3 can be discharged out of the body case 6 through the perforation 61.

The body case 6 includes an ice-taking compartment door 62, and after ice-making and ice-shedding are completed, the ice-taking compartment door 42 is rotated open, and the made ice blocks can be taken out.

Referring to fig. 1, the semiconductor ice maker 100 further includes a heat insulation layer 64 filled in the body housing 6.

Specifically, the body casing 6 is hollow in the middle, and the heat insulation layer 64 is filled in the body casing 6, so as to improve the heat insulation performance of the semiconductor ice maker 100. The material of the insulation layer 64 includes, but is not limited to, foamed glue, fiberglass, asbestos, rock wool, silicate, and the like. Correspondingly, the ice extraction door 62 may also be filled with insulation 64.

Referring to fig. 2, the driving member 72 includes a sleeve 721, a screw 722 and a motor 723.

Specifically, the sleeve 721 is substantially cylindrical, the sleeve 721 is disposed below the tray 71, the top end of the sleeve 721 is connected to the tray 71, and an inner wall of the sleeve 721 is provided with an internal thread. The screw 722 is inserted into the sleeve 721, the screw 722 is provided with an external thread matched with the internal thread, the screw 722 rotates to enable the sleeve 721 to move up and down along the screw 722, and the rising and falling of the sleeve 721 are controlled by the rotating direction of the screw 722.

The motor 723 is provided below the screw 722. The output end of the motor 723 is in driving connection with the bottom end of the screw 722 so as to drive the screw 722 to rotate. The motor 723 controls the rotation direction of the screw 722 by forward or reverse rotation, and thus controls the ascent or descent of the sleeve 721.

In other embodiments, the driving member 72 may also be a linear motor, an output end of the linear motor is connected to the tray 71, and the tray 71 moves up and down by controlling the start and stop of the linear motor.

Referring to fig. 2 and 3, the tray 71 is provided with a drain hole 711, and a waste water box 8 is provided below the tray 71.

Specifically, the waste water box 8 is communicated with the drain hole 711, the drain pipe 9 is arranged at the lower end of the drain hole 711, the input end of the drain pipe 9 is communicated with the drain hole 711, the output end of the drain pipe 9 is communicated with the waste water box 8, and ice cake melted water in the tray 71 can flow into the waste water box 8 through the drain pipe 9 along the drain hole 711. A waste water box door 81 is arranged on the machine body shell 6 so that a user can take out the waste water box 8 and pour out waste water.

To sum up, the utility model discloses in, tray 71 among the deicing subassembly 7 up-and-down motion under the drive of driving piece 72, tray 71 sets up the below at ice box 5 to provide the support for ice box 5. After ice making is successful, the ice removing procedure is started, ice blocks are separated from the refrigerating body 4, the ice box 5 is separated from the refrigerating body 4 integrally through the up-and-down movement of the driving piece 72, and the ice box 5 filled with the separated ice blocks is separated to a designated position, so that the purpose of automatic ice removing is achieved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship 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 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Of course, the above embodiments of the present invention are described in detail, but the present invention can not be understood as being limited to the scope of the present invention, and the present invention can also have other various embodiments, and based on the present embodiments, other embodiments obtained by a person of ordinary skill in the art without any creative work belong to the scope protected by the present invention, and the scope protected by the present invention is subject to the appended claims.

Claims

1. An ice making machine comprising: the refrigerator comprises a machine body shell, a fan, a radiator, a semiconductor refrigerator, a refrigerating body, an ice box, an ice removing assembly and a control circuit board, and is characterized in that the radiator is positioned at the upper end of the semiconductor refrigerator and combined with the hot end face of the semiconductor refrigerator, the refrigerating body is positioned at the lower end of the semiconductor refrigerator and combined with the cold end face of the semiconductor refrigerator, and the control circuit board is electrically connected with the semiconductor refrigerator and the fan;

2. The ice-making machine of claim 1, wherein said refrigeration body is comprised of a base plate and a first protrusion.

3. The ice maker as claimed in claim 2, wherein a groove is formed on a side wall surface of the first protrusion, the ice box is located below the refrigerating body, and the groove is closed to form a hollow space after being fastened with the refrigerating body.

4. The ice-making machine of claim 3, wherein said recess has a second protrusion disposed therein.

5. The ice-making machine of claim 1, wherein said ice bin is provided with a protrusion.

6. The ice-making machine of claim 5, wherein said ice bin snaps onto said tray.

7. The ice-making machine of claim 1, wherein said drive member comprises:

the sleeve is arranged below the tray, the top end of the sleeve is connected with the tray, and the inner wall of the sleeve is provided with internal threads;

8. The ice-making machine of claim 1, wherein said tray is provided with drainage holes.

9. The ice-making machine of claim 8, further comprising: the waste water box is arranged below the tray and communicated with the drain hole.

10. The ice-making machine of claim 1, further comprising: and the temperature sensor is arranged on the refrigerating body and is electrically connected with the control circuit board.