A convenient cleaning milk shaking and warming device

Abstract

The utility model discloses a convenient cleaning's shake milk warming device, including organism, rotating support, drive mechanism and rotating cup, this organism is provided with the cup body accommodating cavity with the top opening, this rotating support is worn in the bottom of cup body accommodating cavity, this drive mechanism sets up in the organism inside and is used for driving rotating support rotation, this rotating cup is placed in cup body accommodating cavity and is connected with rotating support, the accommodating groove for placing the feeding bottle is seted up in this rotating cup inside, and the first air inlet hole that communicates accommodating groove and cup body accommodating cavity respectively is seted up on this rotating cup. Among them, the rotating cup and rotating support detachable connection. Therefore, through the detachable connection of rotating cup and rotating support, when needing to clean the inside of cup body accommodating cavity, can separate the rotating cup and take down, when the user can carry out the comprehensive cleaning of cup body accommodating cavity, and its cleaning is more convenient, and the efficiency is higher, thereby prevent the bacteria breeding and the peculiar smell production.

Description

Technical Field

[0001] This utility model relates to the field of milk shaker technology, and in particular to a milk shaker and warmer that is easy to clean. Background Technology

[0002] Current infant formula requires careful preparation by adults, demanding the right water temperature and ensuring the formula dissolves evenly without bubbles; otherwise, it can easily cause discomfort to infants. Furthermore, infants should be fed on demand, with short intervals and longer feeding times, which can cause the milk to cool down during feeding, necessitating warming measures. To address these two issues, bottle warmers that combine shaking and warming functions have emerged on the market.

[0003] Existing bottle warmers typically include a housing with a cup cavity, a rotating cup inside the cup cavity for holding the bottle, and a drive mechanism inside the housing to rotate the rotating cup to achieve the shaking function. In addition, the housing also has a hot air delivery mechanism. The rotating cup has several air inlets that connect to the cup cavity. The hot air generated by the hot air delivery mechanism can pass through the cup cavity and the air inlets to enter the rotating cup to achieve the warming function.

[0004] However, during use, it was found that users often forget to put the bottle cap on or don't close it tightly when shaking or warming the milk. Milk, due to centrifugal force, is thrown out and enters the cup's cavity through the air inlet on the rotating cup. Over time, the milk residue in the cup's cavity will breed bacteria and produce a strong odor, affecting the user experience. Furthermore, because the rotating cup is fixedly connected to the rotating part of the drive mechanism, users cannot disassemble the rotating cup separately. The gap between the rotating cup and the side wall of the cup's cavity is also small, making it difficult for users to thoroughly clean the inside of the cup's cavity, resulting in low cleaning efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a convenient and easy-to-clean milk shaker and warmer. By detachably connecting the rotating cup and the rotating bracket, the rotating cup can be disassembled separately when it is necessary to clean the inside of the cup cavity. At this time, the user can thoroughly clean the cup cavity, which is more convenient and efficient, thereby preventing bacterial growth and odor.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A convenient and easy-to-clean bottle warmer includes:

[0008] The body has a cup-containing cavity with a top opening;

[0009] A rotating support is inserted through the bottom of the cup-receiving cavity;

[0010] A drive mechanism is disposed inside the machine body and is used to drive the rotating bracket to rotate.

[0011] A rotating cup is placed inside the cup body cavity and connected to the rotating support; the rotating cup has an internal accommodating slot for placing a baby bottle, and the rotating cup has a first air inlet hole that connects the accommodating slot and the cup body cavity respectively;

[0012] The rotating cup and the rotating support are detachably connected.

[0013] As an optional implementation, the rotating cup includes a cup body and a locking seat disposed at the bottom of the cup body, wherein:

[0014] The top of the locking seat is used to support the baby bottle;

[0015] The locking seat and the rotating bracket are detachably connected by a screw or snap-fit ​​structure.

[0016] As an optional implementation, the bottom of the locking seat is provided with a mounting groove, and the screw connection structure is an internal thread formed on the inner side wall of the mounting groove and an external thread formed on the outer side wall of the rotating bracket, wherein the internal thread and the external thread are threadedly connected.

[0017] As an optional implementation, the bottom wall of the cup cavity is inclined to form a flow guide surface, and a drain outlet is provided at the lowest point of the flow guide surface.

[0018] As an optional implementation, a transmission base is also included, the transmission base comprising a base disposed inside the body and a fixed bracket mounted on the base and passing through the bottom of the cup receiving cavity, wherein:

[0019] At least two bearings are fitted on the fixed bracket along the height direction, and the rotating bracket is rotatably fitted on the outer periphery of the fixed bracket through the bearings.

[0020] As an optional implementation, the transmission seat also includes a temperature sensing component mounted on the fixed bracket, the top of which passes through the locking seat.

[0021] As an optional implementation, the driving mechanism includes a driving device, a transmission wheel connected to the output end of the driving device, and a transmission belt wound around the transmission wheel and the rotating bracket respectively to achieve transmission.

[0022] Driven by the drive device, the transmission wheel can be rotated, and the transmission belt can be used to rotate the rotating bracket, which in turn rotates the rotating cup to achieve milk shaking.

[0023] As an optional implementation, it also includes a hot air conveying mechanism for conveying hot air into the rotating cup receiving slot, wherein:

[0024] The hot air delivery mechanism includes a first air duct arranged around the outer periphery of the cup body receiving cavity, a second air duct connected to the first air duct, a fan connected to the second air duct, and a heating element disposed in the second air duct and close to the air outlet of the fan.

[0025] Driven by the fan, air can be discharged from the fan outlet and heated by the heating element to form hot air. The hot air then flows sequentially through the second air duct, the first air duct, the cup body receiving cavity, and the first air inlet into the receiving groove.

[0026] As an optional implementation, the housing includes a duct outer shell, which comprises an upper duct shell and a lower duct shell, wherein:

[0027] The upper shell of the air duct is provided with a first through groove that runs vertically through the upper shell and a first groove that communicates with the first through groove. The lower shell of the air duct is provided with a second through groove that corresponds to the first through groove and runs vertically through the upper shell and a second groove that communicates with the second through groove and corresponds to the first groove.

[0028] The upper shell of the air duct and the lower shell of the air duct are connected to each other vertically, and the first through groove and the second through groove enclose the cup body receiving cavity and the first air duct, and the first groove and the second groove enclose the second air duct.

[0029] As an optional implementation, the machine body further includes a casing, wherein the fan and the duct casing are both located inside the casing, wherein:

[0030] The housing includes an upper housing and a lower housing, the upper housing being connected to the upper housing of the air duct, and the lower housing being connected to the lower housing of the air duct;

[0031] The upper housing has an opening that connects to the first through slot;

[0032] The lower housing has several second air inlets that connect to its interior, and the air inlet of the fan is connected to the several second air inlets.

[0033] In summary, this utility model has the following technical effects:

[0034] (1) The milk shaker and milk warmer of this utility model can be detachably connected to the rotating cup and the rotating bracket. When it is necessary to clean the inside of the cup body cavity, the rotating cup can be detached separately. At this time, the user can thoroughly clean the cup body cavity. The cleaning is more convenient and efficient, thereby preventing bacterial growth and odor.

[0035] (2) The milk shaker and warmer of this utility model is designed by tilting the bottom wall of the cup cavity to form a flow guide surface and opening a drain outlet at the lowest position of the flow guide surface. With this design, when the milk gathers at the bottom of the cup cavity, the milk can flow along the flow guide surface and be discharged in time through the drain outlet, thereby preventing it from flowing into the internal circuit through the air duct structure and affecting safety, while ensuring the cleanliness and hygiene of the inside of the cup cavity.

[0036] (3) The milk warmer of this utility model greatly improves the rotational stability of the rotating bracket by providing at least two bearings on the fixed bracket, thereby improving the rotational stability of the rotating cup and preventing the rotating cup from shaking. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of the milk shaker and bottle warmer of this utility model;

[0039] Figure 2 This is an exploded view of the milk shaker and warmer of this utility model;

[0040] Figure 3 for Figure 2 An illustration of the explosion from another perspective;

[0041] Figure 4 This is an exploded schematic diagram of the transmission base in the milk shaker and warmer of this utility model;

[0042] Figure 5 This is a cross-sectional schematic diagram of the milk shaker and warmer of this utility model;

[0043] Figure 6 This is a partial structural diagram of the milk shaker and bottle warmer of this utility model;

[0044] Figure 7 for Figure 6 Partial structural diagram;

[0045] Figure 8This is another cross-sectional view of the milk shaker and warmer of this utility model.

[0046] The meanings of the reference numerals in the attached figures are as follows:

[0047] 1. Housing; 11. Upper housing; 111. Opening; 12. Lower housing; 121. Second air inlet; 2. Air duct housing; 21. Upper air duct housing; 211. First through groove; 212. First recess; 22. Lower air duct housing; 221. Second through groove; 2211. Guide surface; 2212. Drain outlet; 222. Second recess; 3. Rotating cup; 31. Cup body; 311. First air inlet; 312. Slot; 3121. Slot; 32. 1. Locking seat; 321. Internal thread; 4. Rotating bracket; 41. External thread; 5. Drive mechanism; 51. Drive device; 52. Transmission wheel; 53. Transmission belt; 6. Transmission seat; 61. Base; 62. Fixed bracket; 621. Bracket body; 622. Bracket top cover; 63. Bearing; 64. Limiting sleeve; 65. Temperature sensing component; 7. Fan; 8. Heating element; 9. Bottle clamp; 91. Gripper; 92. Locking block; 921. Elastic protrusion. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0050] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0051] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0052] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0053] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0054] See Figures 1 to 8 This application provides a convenient and easy-to-clean bottle warmer, including a body, a rotating support 4, a drive mechanism 5, and a rotating cup 3. The body has a cup-receiving cavity with a top opening; the rotating support 4 passes through the bottom of the cup-receiving cavity; the rotating cup 3 is placed inside the cup-receiving cavity and connected to the rotating support 4; the rotating cup 3 has a receiving slot for placing a baby bottle inside, and a first air inlet 311 on the rotating cup 3 connecting the receiving slot and the cup-receiving cavity respectively; the drive mechanism 5 is located inside the body and is used to drive the rotating support 4 to rotate, thereby driving the rotating cup 3 to rotate. The rotating cup 3 and the rotating support 4 are detachably connected.

[0055] When the above structure is adopted, if milk enters the cup cavity through the first air inlet 311, the user can disassemble the rotating cup 3 separately. At this time, the user can thoroughly clean the inside of the cup cavity, which is more convenient and efficient, thereby preventing bacteria from growing in the cup cavity.

[0056] The rotating cup 3 includes a cup body 31 and a locking seat 32 located at the bottom of the cup body 31. The top of the locking seat 32 is used to support the baby bottle. The locking seat 32 and the rotating bracket 4 are detachably connected by a screw connection. Specifically, the bottom of the locking seat 32 is provided with a mounting groove. The screw connection consists of an internal thread 321 on the inner side wall of the mounting groove and an external thread 41 on the outer side wall of the rotating bracket 4. The internal thread 321 and the external thread 41 are threaded together.

[0057] Therefore, the rotating cup 3 is connected to the rotating bracket 4 by a threaded connection through the locking seat 32 to achieve a detachable connection. Users can easily disassemble or assemble the rotating cup 3, making the operation very convenient.

[0058] Of course, in other embodiments, the locking seat 32 and the rotating bracket 4 can also adopt a snap-fit ​​structure (such as the snap-fit ​​of a snap-fit ​​block and a snap-fit ​​groove) to achieve a detachable connection, which is not limited here.

[0059] See Figure 4 It also includes a transmission seat 6, which includes a base 61 disposed inside the machine body and a fixed bracket 62 mounted on the base 61 and passing through the bottom of the cup receiving cavity. The rotating bracket 4 is rotatably sleeved on the outer periphery of the fixed bracket 62. Specifically, the fixed bracket 62 includes a bracket body 621 and a bracket cover 622 covering the top of the bracket body 621. Two bearings 63 arranged vertically and horizontally are sleeved on the outer wall of the bracket body 621 along the height direction. A limiting sleeve 64 is provided between the two bearings 63 to achieve limiting. The rotating bracket 4 is rotatably sleeved on the outer periphery of the bracket body 421 through the two bearings 63.

[0060] Therefore, by mounting two bearings 63 spaced apart vertically on the fixed bracket 62, the rotational stability of the rotating bracket 4 is improved, thereby improving the rotational stability of the rotating cup 3 and preventing the rotating cup 3 from shaking.

[0061] In addition, the transmission base 6 also includes a temperature sensing component 65 mounted on the fixed bracket 62, the top of which passes through the locking seat 32. Thus, when the baby bottle is placed inside the rotating cup 3 and supported by the locking seat 32, the temperature sensing component 65 can abut against the bottom of the baby bottle to measure its temperature.

[0062] It should be noted that the temperature sensing component 65 can be an NTC temperature probe or an infrared temperature probe, and the structure of the temperature sensing component 65 is not limited here.

[0063] See Figures 6 to 7 The drive mechanism 5 includes a drive unit 51, a transmission wheel 52 connected to the output end of the drive unit 51, and a transmission belt 53 wound around the transmission wheel 52 and the rotating support 4 respectively to achieve transmission. Thus, under the drive of the drive unit 51, the transmission wheel 52 can be rotated, which in turn drives the rotating support 4 to rotate via the transmission belt 53, thereby rotating the rotating cup 3 to achieve milk shaking. Preferably, the drive unit 51 is a drive motor, and the output shaft of the drive motor is connected to the transmission wheel 52.

[0064] See also Figure 2-3The milk warmer also includes a hot air delivery mechanism for conveying hot air into the receiving slot of the rotating cup 3 to warm the milk. Specifically, the hot air delivery mechanism includes a first air duct arranged around the outer periphery of the receiving cavity of the cup body, a second air duct connected to the first air duct, a fan 7 connected to the second air duct, and a heating element 8 disposed in the second air duct and near the air outlet of the fan 7; the first air inlet 311 is provided in multiple locations and is arranged around the cup body 31 of the rotating cup 3.

[0065] Therefore, under the action of the fan 7, air can be blown out from the air outlet of the fan 7, and hot air is formed under the heating action of the heating element 8. Then, the hot air enters the rotating cup 3 container groove through the second air duct, the first air duct, the cup body receiving cavity and several first air inlets 311 to heat the baby bottle, thereby realizing the milk warming function.

[0066] In this embodiment, the heating element 8 is a PTC heating element.

[0067] The device includes an air duct shell 2, which includes an upper air duct shell 21 and a lower air duct shell 22. The upper air duct shell 21 has a first through groove 211 that runs vertically through it and a first groove 212 that communicates with the first through groove 211. The lower air duct shell 22 has a second through groove 221 that corresponds to the first through groove 211 and runs vertically through it, and a second groove 222 that communicates with the second through groove 221 and corresponds to the first groove 212. When the upper air duct shell 21 and the lower air duct shell 22 are connected vertically to each other, the first through groove 211 and the second through groove 221 form a cup-shaped cavity and a first air duct, and the first groove 212 and the second groove 222 form a second air duct.

[0068] In addition, the machine body also includes a housing 1, and the fan 7 and the air duct housing 2 are both located inside the housing 1. The housing 1 includes an upper housing 11 and a lower housing 12. The upper housing 11 is connected to the upper air duct housing 21, and the lower housing 12 is connected to the lower air duct housing 22. The upper housing 11 has an opening 111 that communicates with the first through groove 211. The lower housing 12 has several second air inlets 121 that communicate with its interior. The air inlet of the fan 7 is connected to the several second air inlets 121.

[0069] Therefore, under the action of the fan 7, external air can enter the casing 1 through several second air inlets 121, then enter the air inlet of the fan 7 and be discharged from the air outlet of the fan 7.

[0070] See also Figures 1 to 3 The bottle warmer also includes a bottle clamp 9 that can be detachably installed in the receiving slot of the rotating cup 3. The inner side of the bottle clamp 9 is provided with several claws 91. Thus, when the bottle is placed into the receiving slot, the claws 91 can abut against the outer wall of the bottle to clamp and fix the bottle.

[0071] The bottle clamp 9 has several spaced-apart locking blocks 92 on its outer wall, each with an elastic protrusion 921. The rotating cup 3 has several spaced-apart slots 312 on its inner ring, each with a locking hole 3121. Therefore, when the locking blocks 92 on the bottle clamp 9 are aligned with the slots 312 on the rotating cup 3 and inserted until the elastic protrusions 921 engage with the locking holes 321, the bottle clamp 9 can be fixed to the rotating cup 3.

[0072] See also Figure 8 Because existing bottle warmers on the market lack overflow outlets in their internal air duct structure, or the overflow outlets are poorly positioned, milk can flow back into the internal circuitry through the air duct when overflowing, affecting safety. Therefore, this application tilts the bottom wall of the second channel 221 in the lower shell 22 of the air duct to form a guide surface 2211 on the bottom wall of the cup-containing cavity. A drain outlet 2212 is located at the lowest point of this guide surface 2211. With this design, when milk enters the bottom of the cup-containing cavity through the first air inlet 311, it can flow along the guide surface 2211 and be discharged promptly through the drain outlet 2212, preventing it from flowing into the internal circuitry through the air duct structure and affecting safety, while also ensuring the cleanliness and hygiene of the inside of the cup-containing cavity.

[0073] The lower housing 12 is also provided with a liquid outlet hole that connects to the liquid outlet 2212. Liquid discharged from the liquid outlet 2212 can be discharged to the outside through the liquid outlet hole, thereby preventing it from flowing into the machine body and ensuring the cleanliness and hygiene of the machine body.

[0074] In summary, this utility model has the following technical effects:

[0075] (a) The milk shaker and warmer of this utility model detachably connects the rotating cup 3 and the rotating bracket 4. When it is necessary to clean the inside of the cup body cavity, the rotating cup 3 can be detached separately. At this time, the user can thoroughly clean the cup body cavity, which is more convenient and efficient, thereby preventing bacterial growth and odor.

[0076] (II) The milk shaker and warmer of this utility model is designed by tilting the bottom wall of the cup cavity to form a flow guide surface 2211 and opening a drain outlet 2212 at the lowest position of the flow guide surface 2211. With this design, when milk enters the bottom of the cup cavity through the first air inlet 311, the milk can flow along the flow guide surface 2211 and be discharged in time through the drain outlet 2212, thereby preventing it from flowing into the internal circuit through the air duct structure and affecting safety, while ensuring the cleanliness and hygiene of the inside of the cup cavity.

[0077] (iii) The milk shaker and warmer of this utility model improves the rotational stability of the rotating bracket 4 by providing at least two bearings 63 on the fixed bracket 62, thereby improving the rotational stability of the rotating cup 3 and preventing the rotating cup 3 from shaking.

[0078] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A convenient and easy-to-clean bottle warmer, characterized in that, include: The body has a cup-containing cavity with a top opening; A rotating support is inserted through the bottom of the cup-receiving cavity; A drive mechanism is disposed inside the machine body and is used to drive the rotating bracket to rotate. A rotating cup is placed inside the cup body cavity and connected to the rotating support; the rotating cup has an internal accommodating slot for placing a baby bottle, and the rotating cup has a first air inlet hole that connects the accommodating slot and the cup body cavity respectively; The rotating cup and the rotating support are detachably connected.

2. The milk shaker and bottle warmer according to claim 1, characterized in that: The rotating cup includes a cup body and a locking seat disposed at the bottom of the cup body, wherein: The top of the locking seat is used to support the baby bottle; The locking seat and the rotating bracket are detachably connected by a screw or snap-fit ​​structure.

3. The milk shaker and bottle warmer according to claim 2, characterized in that: The bottom of the locking seat is provided with a mounting groove, and the screw connection structure is an internal thread on the inner side wall of the mounting groove and an external thread on the outer side wall of the rotating bracket, wherein the internal thread and the external thread are threadedly connected.

4. The milk shaker and bottle warmer according to any one of claims 1-3, characterized in that: The bottom wall of the cup body cavity is inclined to form a flow guide surface, and a drain outlet is provided at the lowest point of the flow guide surface.

5. The milk shaker and bottle warmer according to claim 2 or 3, characterized in that: It also includes a transmission base, which comprises a base disposed inside the body of the machine body and a fixed bracket mounted on the base and passing through the bottom of the cup receiving cavity, wherein: At least two bearings are fitted on the fixed bracket along the height direction, and the rotating bracket is rotatably fitted on the outer periphery of the fixed bracket through the bearings.

6. The milk shaker and bottle warmer according to claim 5, characterized in that: The transmission base also includes a temperature sensing component mounted on the fixed bracket, with the top of the temperature sensing component passing through the locking base.

7. The milk shaker and bottle warmer according to any one of claims 1-3, characterized in that: The driving mechanism includes a driving device, a transmission wheel connected to the output end of the driving device, and transmission belts wound around the transmission wheel and the rotating bracket respectively to achieve transmission. Driven by the drive device, the transmission wheel can be rotated, and the transmission belt can be used to rotate the rotating bracket, which in turn rotates the rotating cup to achieve milk shaking.

8. The bottle warmer according to any one of claims 1-3, characterized in that: It also includes a hot air delivery mechanism for delivering hot air into the rotating cup receiving slot, wherein: The hot air delivery mechanism includes a first air duct arranged around the outer periphery of the cup body receiving cavity, a second air duct connected to the first air duct, a fan connected to the second air duct, and a heating element disposed in the second air duct and close to the air outlet of the fan. Driven by the fan, air can be discharged from the fan outlet and heated by the heating element to form hot air. The hot air then flows sequentially through the second air duct, the first air duct, the cup body receiving cavity, and the first air inlet into the receiving groove.

9. The milk shaker and bottle warmer according to claim 8, characterized in that: The body includes a duct outer shell, which comprises an upper duct shell and a lower duct shell, wherein: The upper shell of the air duct is provided with a first through groove that runs vertically through the upper shell and a first groove that communicates with the first through groove. The lower shell of the air duct is provided with a second through groove that corresponds to the first through groove and runs vertically through the upper shell and a second groove that communicates with the second through groove and corresponds to the first groove. The upper shell of the air duct and the lower shell of the air duct are connected to each other vertically, and the first through groove and the second through groove enclose the cup body receiving cavity and the first air duct, and the first groove and the second groove enclose the second air duct.

10. The milk shaker and bottle warmer according to claim 9, characterized in that: The machine body also includes a casing, and both the fan and the duct casing are located inside the casing, wherein: The housing includes an upper housing and a lower housing, the upper housing being connected to the upper housing of the air duct, and the lower housing being connected to the lower housing of the air duct; The upper housing has an opening that connects to the first through slot; The lower housing has several second air inlets that connect to its interior, and the air inlet of the fan is connected to the several second air inlets.

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