Compound protection structure of ice maker water pump and ice maker water pump

Abstract

The utility model discloses a kind of composite protection structure of ice maker water pump and ice maker water pump, including by inside to outside coaxial arrangement's stainless steel protective shell, ventilation gap layer, flame-retardant cover, stainless steel protective shell cover is located at the outside of motor stator, flame-retardant cover cover is located at the outside of stainless steel protective shell, and ventilation gap layer is formed between stainless steel protective shell, the lower portion of ventilation gap layer is provided with radial flow type cooling fan;Flame-retardant cover includes circumferentially distributed flow guide grid part, top flame-retardant top cover and bottom wind collecting cover, three are split type buckling connection;Bottom wind collecting cover circumferentially sets the slot matched with stainless steel protective shell, and stainless steel protective shell lower end is inserted into the slot and fixed.The utility model uses stainless steel protective shell as inner layer protection, reduces ice-making water pollution risk;Flame-retardant cover and stainless steel protective shell form stepped protection system, ventilation gap layer between double-layer shell cooperates radial flow type cooling fan and forms forced flow guide air duct, and active heat dissipation is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, specifically to a protective structure for an internal water pump of an ice maker and the water pump itself, particularly to a composite shell water pump device with food-grade safety protection and active heat dissipation functions. Background Technology

[0002] In the technological evolution of water pumps, the core component of ice makers, material contamination and heat dissipation protection have always been key challenges restricting the industry's development. Existing technologies suffer from the following systemic defects: Mainstream ice maker water pumps generally use aluminum alloy casings, which are prone to metal ion precipitation or polymer degradation after prolonged contact with condensate. Traditional heat dissipation solutions rely on natural convection; when the ambient temperature is high, the motor temperature rise can cause frequent compressor overheating protection activation, leading to ice maker malfunctions caused by poor water pump heat dissipation and winding aging. Furthermore, the rapid heating of the motor can cause its aluminum alloy casing to also heat up rapidly, posing a risk of burns. Utility Model Content

[0003] The purpose of this invention is to provide a protective structure for the internal water pump of an ice maker and the ice maker water pump itself, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a composite protective structure for an ice maker water pump, comprising a stainless steel protective shell, a ventilation gap layer, and a flame-retardant outer cover arranged coaxially from the inside to the outside, wherein the stainless steel protective shell covers the outside of the motor stator, the flame-retardant outer cover covers the outside of the stainless steel protective shell, and the ventilation gap layer is formed between the flame-retardant outer cover and the stainless steel protective shell, and a radial flow cooling fan is provided below the ventilation gap layer.

[0005] Preferably, the flame-retardant outer cover includes a circumferentially distributed airflow guide grid, a top flame-retardant top cover, and a bottom air collection cover, which are connected separately by interlocking.

[0006] Preferably, the bottom air collecting shroud is provided with a slot around its circumference that mates with the stainless steel protective housing, and the lower end of the stainless steel protective housing is inserted into the slot for fixation.

[0007] Preferably, the radial cooling fan is mounted on the rotating shaft of the motor, and its rotating plane is located between the vent of the stainless steel protective housing and the air inlet of the flame-retardant outer cover.

[0008] Preferably, the lower part of the bottom air collecting shroud is connected to the water pump base, and the lower end of the flow guide grid is interlocked with the water pump base.

[0009] Preferably, a ventilation gap is provided between the bottom air collecting hood and the air guiding grid.

[0010] Preferably, the stainless steel protective shell is made of food-grade material and its surface is electrolytically polished.

[0011] Preferably, the flame-retardant outer cover is made of flame-retardant plastic.

[0012] This utility model also provides an ice maker water pump, including a water pump body, the rotating shaft of the water pump body is connected to a motor, and the outer layer of the motor is provided with the composite protective structure described above.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model uses a stainless steel protective shell as the inner layer of protection, which effectively blocks the adhesion of microorganisms. Compared with traditional aluminum shell materials, the amount of metal ion release is reduced, thus reducing the risk of ice-making water pollution. The flame-retardant outer cover forms a stepped protection system with the stainless steel protective shell. On the other hand, the ventilation gap layer between the two shells, together with the radial cooling fan, forms a forced airflow channel, which is more conducive to the active heat dissipation of the motor, effectively reducing ice maker failures and also reducing the risk of burns from motor overheating. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of 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.

[0016] Figure 1 This is one of the structural schematic diagrams of the ice maker water pump 8 in the embodiment;

[0017] Figure 2 A sectional view of the top view of the water pump of the ice maker;

[0018] Figure 3 A three-dimensional schematic diagram of the assembly of the airflow guide grid and the bottom air collection shroud;

[0019] Figure 4 for Figure 3 A sectional view taken from a top-down perspective;

[0020] Figure 5 This is a schematic diagram of the bottom air collection shroud.

[0021] Figure 6 This is a schematic diagram showing the assembly of the airflow guide grid, the top flame-retardant cover, and the stainless steel protective housing.

[0022] Figure 7 for Figure 6 A sectional view taken from a top-down perspective;

[0023] Figure 8This is a cross-sectional view of the assembly structure of the flow guide grid and the water pump base;

[0024] Figure 9 This is a partial structural diagram of the water pump in an ice maker.

[0025] Figure 10 This is the second schematic diagram of the structure of the water pump 8 in the ice maker in the embodiment;

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1 - Stainless steel protective housing, 2 - Ventilation gap layer, 3 - Flame-retardant outer cover, 301 - Air guide grid section, 302 - Top flame-retardant top cover, 303 - Bottom air collection cover, 4 - Motor, 401 - Rotating shaft, 5 - Radial cooling fan, 6 - Water pump base, 7 - Ventilation gap, 8 - Ice maker water pump. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1 to 9 As shown, this utility model provides a composite protection structure for an ice maker water pump, including a stainless steel protective shell 1, a ventilation gap layer 2, and a flame-retardant outer cover 3, coaxially arranged from the inside to the outside. The stainless steel protective shell 1 covers the outside of the stator of the motor 4, and the flame-retardant outer cover 3 covers the outside of the stainless steel protective shell 1, forming the ventilation gap layer 2 between them. A radial flow cooling fan 5 is installed below the ventilation gap layer 2. This utility model uses the stainless steel protective shell 1 as the inner layer of protection, effectively blocking microbial adhesion and reducing the amount of metal ion release compared to traditional aluminum shell materials, thus reducing the risk of ice-making water contamination. The flame-retardant outer cover 3 forms a stepped protection system with the stainless steel protective shell 1, and the ventilation gap layer 2 between the two shells, together with the radial flow cooling fan 5, forms a forced airflow duct, which further facilitates active heat dissipation of the motor and effectively reduces ice maker malfunctions.

[0030] In other specific embodiments, the flame-retardant outer cover 3 includes a circumferentially distributed flow guide grid 301, a top flame-retardant top cover 302, and a bottom air collector hood 303, which are connected separately by interlocking. Specifically, the top flame-retardant top cover 302 is fixed to the upper part of the motor 4 bracket by bolts, and the bottom air collector hood 303 is positioned and fixed below the motor 4 by connecting to the water pump base 6. The circumferentially arranged flow guide grid 301 presses against the circumferential edge of the top flame-retardant top cover 302, simultaneously covering the stainless steel protective shell 1 and the bottom air collector hood 303 surrounding the motor. Its lower end is interlocked with the water pump base 6 by an interference fit. This modular interlocking structure in this embodiment makes it easier to disassemble and replace parts, reducing maintenance costs. The bottom air collector hood 303 has a circumferentially arranged slot 3031 that mates with the stainless steel protective shell 1. The lower end of the stainless steel protective shell 1 is inserted into the slot 3031 for fixation, improving the ease of assembly, accuracy, and stability. A ventilation gap 7 is provided between the bottom air collecting shroud 303 and the air guiding grid 301. A radial cooling fan 5 is mounted on the rotating shaft 401 of the motor 4, with its rotation plane located between the ventilation opening of the stainless steel protective housing 1 and the air inlet of the flame-retardant outer cover 3, optimizing the airflow path and improving heat dissipation efficiency. The stainless steel protective housing 1 is made of food-grade material, and its surface is electrolytically polished; the flame-retardant outer cover 3 is made of flame-retardant plastic.

[0031] This embodiment also provides an ice maker water pump 8, including a water pump body. The rotating shaft of the water pump body is connected to a motor 5. The outer layer of the motor 5 is provided with the composite protective structure described above. It should be noted that the composite protective structure of the ice maker water pump can be provided but is not limited to the following. Figure 10 The cylindrical shape shown or like Figure 1 The square shown.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A composite protection structure for an ice maker water pump, characterized in that: The device includes a stainless steel protective housing, a ventilation gap layer, and a flame-retardant outer cover arranged coaxially from the inside to the outside. The stainless steel protective housing covers the outside of the motor stator, and the flame-retardant outer cover covers the outside of the stainless steel protective housing, forming the ventilation gap layer between them. A radial flow cooling fan is installed below the ventilation gap layer.

2. The composite protection structure for the ice maker water pump according to claim 1, characterized in that: The flame-retardant outer cover includes a circumferentially distributed airflow guide grid, a top flame-retardant top cover, and a bottom air collection cover, which are connected separately by interlocking.

3. The composite protection structure for the ice maker water pump according to claim 2, characterized in that: The bottom air collecting cover has a slot around its circumference that mates with the stainless steel protective housing, and the lower end of the stainless steel protective housing is inserted into the slot for fixation.

4. The composite protection structure for the ice maker water pump according to claim 1, characterized in that: The radial cooling fan is mounted on the rotating shaft of the motor, and its rotating plane is located between the vent of the stainless steel protective housing and the air inlet of the flame-retardant outer cover.

5. The composite protection structure for the ice maker water pump according to claim 2, characterized in that: The lower part of the bottom air collecting shroud is connected to the water pump base, and the lower end of the flow guide grid is interlocked with the water pump base.

6. The composite protection structure for the ice maker water pump according to claim 2, characterized in that: A ventilation gap is provided between the bottom air collecting hood and the air guiding grid.

7. The composite protection structure for the ice maker water pump according to claim 1, characterized in that: The stainless steel protective shell is made of food-grade material.

8. The composite protection structure for the ice maker water pump according to claim 1, characterized in that: The flame-retardant outer cover is made of flame-retardant plastic.

9. A water pump for an ice maker, characterized in that: It includes a water pump body, the rotating shaft of which is connected to a motor, and the outer layer of the motor is provided with a composite protective structure as described in any one of claims 1 to 8.

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