CN217036933U - Motor suitable for freezer - Google Patents

Abstract

The utility model relates to a motor suitable for a refrigeration house, which comprises a shell, wherein the bottom of the shell is fixedly connected with a vibration damping assembly; the upper end of the shell is provided with a compressor; the outer side wall of the shell is respectively provided with a refrigerant air inlet and a refrigerant air outlet; the refrigerant inlet is communicated with the first refrigerant channel; the refrigerant gas outlet is communicated with the second refrigerant channel; a spring device is arranged between the lower cover plate and the upper cover plate and comprises a spring, a telescopic rod and a buffer slot; one end of the spring is fixedly connected with the upper cover plate, and the other end of the spring is fixedly connected with the lower cover plate; one end of the telescopic rod is fixedly connected with the upper cover plate, and the other end of the telescopic rod is embedded into the buffer groove and movably connected with the buffer groove; the bottom end of the buffer slot is fixedly connected with the lower cover plate. The utility model provides a motor suitable for a refrigeration house, which effectively solves the problems of heat dissipation of the motor and overlarge vibration of a compressor, fully and effectively cools the motor, reduces the overall amplitude and frequency of the compressor and the motor, has good vibration reduction effect, and prolongs the service life of the motor.

Description

Motor suitable for freezer

Technical Field

The utility model relates to the field of a refrigerator motor, in particular to a motor suitable for a refrigerator.

Background

The refrigeration house is one kind of refrigeration equipment, the refrigeration house is a constant temperature and humidity storage equipment which creates an environment different from the outdoor temperature or humidity by manual means, and is also a constant temperature and humidity storage equipment for food, liquid, chemical industry, medicine, vaccine, scientific experiment and other articles, the refrigeration house is usually positioned near a transportation port or a place of origin, the refrigeration house has a larger refrigeration area compared with a refrigerator, and has a common refrigeration principle, the internal refrigeration of the refrigeration house mostly adopts a refrigerator to work, a refrigeration compressor is a machine for refrigeration, but in the operation process of a motor in the refrigeration compressor in the market at present, a large amount of heat can be generated due to copper loss and iron loss, if the motor is not internally cooled, the motor can only transmit the heat to a shell to be emitted to the outside, so that the temperature of the motor rises, the overheating of the motor can accelerate the aging of a winding, finally, the motor breaks down, and the motor can generate violent vibration during the work, which in the long run would lead to compressor damage.

In order to solve the above problems, workers in the field have made various studies on motors suitable for refrigerators:

chinese patent application 202011184416.5 discloses an electric scroll compressor with a motor having a cooling channel, which comprises a motor housing composed of a front end cover and a middle cylinder, wherein the middle cylinder is connected with the end part of the scroll compressor, a motor shaft is arranged inside the motor housing, a rotor is arranged on the motor shaft, and a stator is arranged outside the rotor; the rotor is provided with a through rotor cooling channel along the axial direction, the front end cover is provided with an air inlet, air enters the air inlet channel after passing through the air inlet, the air inlet channel is communicated with the rotor cooling channel, the rotor cooling channel discharges the air through the air outlet channel, and the air outlet channel is communicated with the air suction chamber of the scroll compressor. The rotor cooling channel accelerates the gas flow, and enhances the heat exchange condition between the gas and the motor. In addition, resistance loss is generated when the gas passes through the motor, but the pressure of the gas is increased along with the rotation of the rotor under the driving of the motor shaft, so that the resistance loss is made up. However, this solution does not take into account that the compressor, when in operation, generates vibrations, which are more prone to problems over time.

Therefore, there is a need for further improvement of the motor for the refrigerator to solve the above-mentioned disadvantages.

Disclosure of Invention

The purpose of the application is: the motor suitable for the refrigeration house is provided, the problems of motor heat dissipation and overlarge compressor vibration are effectively solved, the motor is sufficiently and effectively cooled, the overall amplitude and frequency of the compressor and the motor are reduced, the vibration reduction effect is good, and the service life of the motor is prolonged.

The motor suitable for the refrigeration house is characterized by comprising a shell, wherein the bottom of the shell is fixedly connected with a vibration reduction assembly; a compressor is arranged at the upper end of the shell; a refrigerant air inlet and a refrigerant air outlet are respectively formed in the outer side wall of the shell; the refrigerant air inlet is communicated with the first refrigerant channel; the refrigerant gas outlet is communicated with the second refrigerant channel.

Preferably, the inner wall of the shell is provided with a groove, and the groove extends axially along the inner wall of the shell to form a spiral groove.

Preferably, the spiral groove is a first refrigerant channel.

Preferably, a motor shaft is arranged inside the shell; the outer peripheral surface of the motor shaft is fixedly connected with the rotor; a stator is arranged on the periphery of the rotor; and a second refrigerant channel is arranged between the rotor and the stator.

Preferably, the vibration damping assembly comprises a support rod; the upper end of the supporting rod is fixedly connected with the bottom of the shell, and the lower end of the supporting rod is embedded into the base and is fixedly connected with the upper cover plate.

Preferably, an elastic plate is arranged between the upper part of the base and the bottom of the shell.

Preferably, a lower cover plate is arranged below the upper cover plate; and a spring device is arranged between the lower cover plate and the upper cover plate.

Preferably, a rubber pad is arranged below the lower cover plate.

Preferably, the spring device comprises a spring, a telescopic rod and a buffer groove; one end of the spring is fixedly connected with the upper cover plate, and the other end of the spring is fixedly connected with the lower cover plate; one end of the telescopic rod is fixedly connected with the upper cover plate, and the other end of the telescopic rod is embedded into the buffer groove and movably connected with the buffer groove; the bottom end of the buffer slot is fixedly connected with the lower cover plate.

Preferably, a buffer spring is arranged in the buffer groove and fixedly connected with the connecting plate.

Compared with the prior art, the application has the following obvious advantages and effects:

1. in the utility model, the outer side wall of the shell is respectively provided with a refrigerant air inlet and a refrigerant air outlet; the refrigerant inlet is communicated with the first refrigerant channel; the refrigerant gas outlet is communicated with the second refrigerant channel. The refrigerant enters the first refrigerant channel through the air inlet to cool the stator of the motor, the refrigerant passing through the stator enters the second refrigerant channel to cool the rotor of the motor, and finally the refrigerant is discharged from the refrigerant air outlet. Through first refrigerant passageway and second refrigerant passageway, fully and cool off effectively to the motor for the motor can the safe and stable operation, has improved the life of motor.

2. In the utility model, a spring device is arranged between a lower cover plate and an upper cover plate, and comprises a spring, a telescopic rod and a buffer slot; one end of the spring is fixedly connected with the upper cover plate, and the other end of the spring is fixedly connected with the lower cover plate; one end of the telescopic rod is fixedly connected with the upper cover plate, and the other end of the telescopic rod is embedded into the buffer slot and movably connected with the buffer slot; the bottom end of the buffer slot is fixedly connected with the lower cover plate. When the compressor vibrates, the whole amplitude and frequency of the compressor and the motor are reduced under the action of the spring and the buffer spring, and the vibration reduction effect is good.

Drawings

Fig. 1 is a diagram of the overall structural arrangement of the present application.

Fig. 2 is a schematic view of a portion a of fig. 1 of the present application and a first refrigerant channel.

Fig. 3 is a schematic structural diagram of a buffer spring in the present application.

Fig. 4 is a schematic view of the internal structure of the buffer tank in the present application.

Reference numbers in this application:

the vibration-damping device comprises a shell 1, a base 2, a vibration-damping component 3, a supporting rod 31, an upper cover plate 32, a lower cover plate 33, an elastic plate 34, a spring device 35, a spring 351, an expansion rod 352, a buffer groove 353, a buffer spring 354, a connecting plate 355, a rubber pad 36, a compressor 4, a refrigerant inlet 5, a refrigerant outlet 6, a first refrigerant channel 7, a second refrigerant channel 8, a spiral groove 9, a motor shaft 10, a rotor 11 and a stator 12.

Detailed Description

Specific embodiments thereof are described in connection with the figures and the following description to teach those skilled in the art how to make and use the best mode of the application. For the purpose of teaching application principles, the following conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations from these embodiments that fall within the scope of the present application. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the present application. In the present application, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, and are not used to limit the scope of the utility model, and the relative relationship between the terms and the corresponding terms may be changed or adjusted without substantial technical change. Thus, the present application is not limited to the particular embodiments described below, but only by the claims and their equivalents.

Fig. 1 to 4 show a specific embodiment of the motor for a refrigerator according to the present application.

The utility model relates to a motor suitable for a refrigeration house, which comprises a shell 1, wherein the bottom of the shell 1 is fixedly connected with a vibration damping component 3; the upper end of the shell 1 is provided with a compressor 4; the outer side wall of the shell 1 is respectively provided with a refrigerant inlet 5 and a refrigerant outlet 6; the refrigerant inlet 5 is communicated with the first refrigerant channel 7; the refrigerant outlet 6 is communicated with the second refrigerant channel 8; a spring device 35 is arranged between the lower cover plate 33 and the upper cover plate 32, and the spring device 35 comprises a spring 351, an expansion link 352 and a buffer groove 353; one end of the spring 351 is fixedly connected with the upper cover plate 32, and the other end is fixedly connected with the lower cover plate 33; one end of the telescopic rod 352 is fixedly connected with the upper cover plate 32, and the other end of the telescopic rod is embedded into the buffer groove 353 and is movably connected with the buffer groove 353; the bottom end of the buffer slot 353 is fixedly connected with the lower cover plate 33. The motor suitable for the refrigeration house effectively solves the problems of motor heat dissipation and overlarge vibration of the compressor 4, fully and effectively cools the motor, reduces the overall amplitude and frequency of the compressor 4 and the motor, has a good vibration reduction effect, and prolongs the service life of the motor.

As shown in fig. 1 and 2, in the embodiment of the present application,

a motor suitable for a refrigeration house comprises a shell 1, wherein the bottom of the shell 1 is fixedly connected with a vibration damping assembly 3; the upper end of the shell 1 is provided with a compressor 4; the outer side wall of the shell 1 is respectively provided with a refrigerant inlet 5 and a refrigerant outlet 6; the refrigerant outlet 6 is arranged on the corresponding surface of the refrigerant inlet 5, the refrigerant outlet 6 is larger than the refrigerant inlet 5, the refrigerant inlet 5 is communicated with the inlet of a first refrigerant channel 7, the outlet of the first refrigerant channel 7 is connected with the inlet of a second refrigerant channel 8, and the outlet of the second refrigerant channel 8 is communicated with the refrigerant outlet 6. The refrigerant enters the first refrigerant channel 7 through the air inlet to cool the stator 12 of the motor, the refrigerant passing through the stator 12 enters the second refrigerant channel 8 to cool the rotor 11 of the motor, and finally the refrigerant is discharged from the refrigerant air outlet 6. Through first refrigerant passageway 7 and second refrigerant passageway 8, fully just cooled off effectively to the motor for the motor can the safe and stable operation, has improved the life of motor.

Specifically, as shown in fig. 1 and fig. 2, in the embodiment of the present application,

the inner wall of the shell 1 is provided with a groove, the groove extends along the axial direction of the inner wall of the shell 1 to form a spiral groove 9, the initial end of the spiral groove 9 is a refrigerant air inlet 5, the tail end of the spiral groove 9 is positioned below the refrigerant air inlet 5, the spiral groove 9 is a first refrigerant channel 7, the stator 12 is cooled more fully by the refrigerant in a mode of the spiral groove 9, the refrigerant passing time is increased, the heat generated in the running process of the running motor is fully and uniformly carried by the refrigerant, and a motor shaft 10 is arranged in the shell 1; the peripheral surface of the motor shaft 10 is fixedly connected with the rotor 11; a stator 12 is arranged on the periphery of the rotor 11; a second refrigerant channel 8 is arranged between the rotor 11 and the stator 12, an inlet of the second refrigerant channel 8 is communicated with an outlet of the first refrigerant channel 7, and an outlet of the second refrigerant channel 8 is communicated with the refrigerant gas outlet 6, so that the refrigerant passes through the stator 12 and then enters the second refrigerant channel 8 again, the heat generated by the rotor 11 is taken away, and the heat is discharged from the refrigerant gas outlet 6.

It is further noted that, as shown in fig. 3 and 4, in the embodiment of the present application,

the damping assemblies 3 are provided with four groups, and the damping assemblies 3 comprise supporting rods 31; the upper end of the support rod 31 is fixedly connected with the bottom of the shell 1, and the lower end is embedded into the base 2 and is fixedly connected with the upper cover plate 32; an elastic plate 34 is arranged between the upper part of the base 2 and the bottom of the shell 1, and the amplitude and the vibration frequency can be reduced after the elastic plate 34 is elastically deformed. A lower cover plate 33 is arranged below the upper cover plate 32; a spring device 35 is arranged between the lower cover plate 33 and the upper cover plate 32, and a rubber pad 36 is arranged below the lower cover plate 33, so that the base is protected to the greatest extent, and the stability of the base is improved.

The spring device 35 comprises a spring 351, an expansion rod 352 and a buffer groove 353; one end of the spring 351 is fixedly connected with the upper cover 32, and the other end is fixedly connected with the lower cover plate 33; one end of the telescopic rod 352 is fixedly connected with the upper cover plate 32, and the other end of the telescopic rod is embedded into the buffer groove 353 and is movably connected with the buffer groove 353; the bottom end of the buffer groove 353 is fixedly connected with the lower cover plate 33, a buffer spring 354 is arranged in the buffer groove 353, and the buffer spring 354 is fixedly connected with a connecting rod 355. When the compressor 4 vibrates, the overall amplitude and frequency of the compressor 4 and the motor are reduced under the action of the springs 351 and the buffer springs 354, and the vibration reduction effect is good.

It should be noted that, as shown in fig. 1, in the embodiment of the present application,

each group of damping assemblies 3 is provided with two buffer grooves 353, each buffer groove 353 is internally provided with a buffer spring 354, each buffer spring 354 is fixedly connected with a connecting plate 355, and when the buffer springs 354 are elastically deformed, the stability of the telescopic rods 352 can be kept, the telescopic rods 352 are fixedly connected with the connecting plates 355, the connecting plates 355 are fixedly connected with the buffer springs 354, and the connecting plates 355 are movably connected in the buffer grooves 353. The arrangement of the buffer groove 353 and the buffer spring 354 effectively damps the entire compressor 4.

When the utility model is used: firstly, a refrigerant is input into a first refrigerant channel 7 from a refrigerant inlet 5, the first refrigerant channel 7 is in the shape of a spiral groove 9, the side surface of the spiral groove 9 is provided with a stator 12, the stator 12 is more fully cooled by the refrigerant in the mode of the spiral groove 9, the refrigerant passing time is prolonged, the refrigerant is beneficial to fully and uniformly carrying away heat generated in the running process of the motor, because the inlet of a second refrigerant channel 8 is communicated with the outlet of the first refrigerant channel 7, and the outlet of the second refrigerant channel 8 is communicated with a refrigerant outlet 6, the refrigerant enters the second refrigerant channel 8 again after passing through the stator 12, the heat generated by a rotor 11 is carried away, the heat is discharged from the refrigerant outlet 6, the cooling of the motor is completed through the first refrigerant channel 7 and the second refrigerant channel 8, the motor is fully and effectively cooled, and the motor can run safely and stably, the service life of the motor is prolonged;

the spring device 35 comprises a spring 351, an expansion rod 352 and a buffer groove 353; one end of the spring 351 is fixedly connected with the upper cover plate 32, and the other end is fixedly connected with the lower cover plate 33; the spring 351 is connected with the upper cover plate 32 and the lower cover plate 33, the upper cover plate 32 is connected with the support rod 31, and when the compressor 4 vibrates, the spring 351 can generate a first damping effect; be equipped with buffer spring 354 in the buffer slot 353, buffer spring 354 and connecting plate 355 fixed connection, when taking place elasticity deformation for guaranteeing buffer spring 354, can keep the stability of telescopic link 352, telescopic link 352 and connecting plate 355 fixed connection, connecting plate 355 and buffer spring 354 fixed connection, connecting plate 355 swing joint in buffer slot 353, through buffer slot 353 and buffer spring 354's setting, produce the secondary damping effect, effectively carry out the damping to compressor 4 is whole, the reduction of amplitude. The motor suitable for the refrigeration house effectively solves the problems of motor heat dissipation and overlarge vibration of the compressor 4, fully and effectively cools the motor, reduces the overall amplitude and frequency of the compressor 4 and the motor, has a good vibration reduction effect, and prolongs the service life of the motor.

Any modification, equivalent replacement, improvement, etc. made within the concept and principle of the application should be included in the scope of the claims of the present application as can be easily conceived by those skilled in the art.

Claims (10)

1. The motor suitable for the refrigeration house is characterized by comprising a shell, wherein the bottom of the shell is fixedly connected with a vibration damping assembly; a compressor is arranged at the upper end of the shell; the outer side wall of the shell is respectively provided with a refrigerant air inlet and a refrigerant air outlet; the refrigerant inlet is communicated with the first refrigerant channel; the refrigerant gas outlet is communicated with the second refrigerant channel.

2. The motor suitable for the refrigerator according to claim 1, wherein: the inner wall of the shell is provided with a groove, and the groove extends axially along the inner wall of the shell to form a spiral groove.

3. The motor suitable for the freezer of claim 2, characterized in that: the spiral groove is a first refrigerant channel.

4. The motor suitable for the refrigerator according to claim 1, wherein: a motor shaft is arranged in the shell; the peripheral surface of the motor shaft is fixedly connected with the rotor; a stator is arranged on the periphery of the rotor; and a second refrigerant channel is arranged between the rotor and the stator.

5. The motor suitable for the cold storage according to claim 1, characterized in that: the vibration reduction assembly comprises a support rod; the upper end of the supporting rod is fixedly connected with the bottom of the shell, and the lower end of the supporting rod is embedded into the base and is fixedly connected with the upper cover plate.

6. The motor suitable for the freezer of claim 5, characterized in that: an elastic plate is arranged between the upper part of the base and the bottom of the shell.

7. The motor suitable for the refrigerator according to claim 5, wherein: a lower cover plate is arranged below the upper cover plate; and a spring device is arranged between the lower cover plate and the upper cover plate.

8. The motor suitable for the freezer of claim 7, characterized in that: and a rubber pad is arranged below the lower cover plate.

9. The motor suitable for the refrigerator according to claim 7, wherein: the spring device comprises a spring, a telescopic rod and a buffer groove; one end of the spring is fixedly connected with the upper cover plate, and the other end of the spring is fixedly connected with the lower cover plate; one end of the telescopic rod is fixedly connected with the upper cover plate, and the other end of the telescopic rod is embedded into the buffer groove and is movably connected with the buffer groove; the bottom end of the buffer slot is fixedly connected with the lower cover plate.

10. The motor suitable for the refrigerator according to claim 9, wherein: and a buffer spring is arranged in the buffer groove and is fixedly connected with the connecting plate.

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