CN204678489U - Air conditioner room unit - Google Patents

Abstract

The purpose of the utility model is to provide an indoor unit of an air conditioner, which aims to increase the effective cooling capacity of the air conditioner, thereby increasing the energy efficiency ratio of the air conditioner. The indoor unit of an air conditioner for achieving the stated purpose includes an evaporator, a fan and a fan motor, the fan motor is used to drive the fan, and the feature is that the fan motor is set to be isolated from the indoor circulating air generated by the fan , so as to eliminate the counteracting effect of the heat dissipation of the fan motor on the cold generated by the evaporator.

Description

air conditioner indoor unit

technical field

The utility model relates to an air conditioner, in particular to an indoor unit of an air conditioner

Background technique

The energy efficiency ratio is the ratio of the actual cooling capacity to the actual input power when the air conditioner is in cooling operation under rated working conditions and specified conditions. This is a comprehensive indicator that reflects the cooling capacity converted into unit input power during the operation of the air conditioner. The greater the energy efficiency ratio of the air conditioner, the more electricity can be saved when the cooling capacity is equal.

There are two types of energy efficiency ratios for air conditioners: the cooling energy efficiency ratio (EER) and the heating energy efficiency ratio (COP). Generally speaking, as far as the usage habits of air conditioners are concerned in most regions of China, air conditioner heating is only an auxiliary means of heating in winter, and its main function is still cooling in summer. Cooling energy efficiency ratio EER.

At present, the variable working condition design method is widely used in the industry to improve the energy efficiency ratio of air conditioners.

Utility model content

The purpose of the utility model is to provide an indoor unit of an air conditioner, which aims to increase the effective cooling capacity of the air conditioner, thereby improving the energy efficiency ratio of the air conditioner.

The indoor unit of an air conditioner for achieving the purpose includes an evaporator, a fan and a fan motor, the fan motor is used to drive the fan, and the feature is that the fan motor is provided with a motor casing, so as to generate The indoor circulating air is isolated so as to eliminate the counteracting effect of the heat dissipation of the fan motor on the cold generated by the evaporator.

The further feature of the indoor unit of the air conditioner is that an insulating material is provided on the motor cover to further isolate the fan motor from the indoor circulating air.

The further feature of the indoor unit of the air conditioner is that the fan motor is set separately from the fan, and the transmission connection between the fan motor and the fan is realized through a belt drive or a transmission shaft.

The indoor unit of the air conditioner is further characterized in that the fan motor is equipped with a separate cooling fan.

The further feature of the indoor unit of the air conditioner is that the fan is arranged on the internal partition of the indoor unit or the top plate of the whole unit.

The further feature of the indoor unit of the air conditioner is that a motor support plate is provided on the side wall of the motor cover opposite to the installation plate of the fan motor, and the motor support plate supports the installation plate of the motor the opposite side of the side.

The utility model changes the traditional point of view, and realizes the influence of fan motor heat dissipation on the cooling capacity of the indoor unit, and separates the indoor fan motor from the indoor circulating air system, thereby improving the effective cooling capacity of the air conditioning system and correspondingly improving the cooling capacity of the air conditioner. energy efficiency ratio.

Description of drawings

The above and other features, properties and advantages of the present utility model will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, wherein:

Fig. 1 is the schematic diagram of the air conditioner indoor unit in the utility model embodiment 1;

Fig. 2 is the schematic diagram of the indoor unit of the air conditioner in Embodiment 2 of the utility model;

Fig. 3 is a schematic diagram of the indoor unit of the air conditioner in Embodiment 3 of the present utility model.

Detailed ways

The utility model will be further described below in conjunction with specific embodiments and accompanying drawings, and more details have been set forth in the following description so as to fully understand the utility model, but the utility model can obviously be in many other ways different from this description To implement, those skilled in the art can make similar promotion and deduction according to the actual application situation without violating the connotation of the utility model, so the content of this specific embodiment should not limit the protection scope of the utility model.

It should be noted that accompanying drawings 1 to 3 are only examples, they are not drawn according to equal scale conditions, and should not be taken as limitations on the protection scope of the actual requirements of the present utility model.

For a long time, the fan motor of the indoor fan of the air conditioner has been installed in the indoor circulating air system. It is generally believed that the fan motor has little effect on the cooling capacity generated by the evaporator of the indoor unit. However, according to the research of the inventor of the present utility model, if the fan motor is isolated from the indoor circulating air, the cooling capacity will be increased by about 4%, and the cooling energy efficiency ratio will be correspondingly increased by one level. Therefore, the heat dissipation of the motor is not as insignificant as the general opinion, which offsets part of the cooling capacity of the evaporator. The following embodiments are proposed based on this innovative point of view.

The indoor unit of the air conditioner in the embodiment of the utility model, like the known indoor unit, includes an indoor heat exchanger, a fan, and a fan motor. The indoor heat exchanger functions as a condenser when the air conditioner is in the heating mode. It functions as an evaporator in the cooling mode, so even if the indoor unit includes an evaporator, the evaporator can also be used as a condenser. In addition, in order to clearly understand the difference between the embodiment of the present invention and the known technology , in Figures 1 to 3, the evaporator is not shown, the location of the evaporator can be set with reference to the known technology, for example, it is set on the air inlet side of the fan, that is, the fan generates indoor circulating air, and the indoor circulating air is drawn from the indoor unit The air return port of the indoor unit enters the air duct of the indoor unit, then absorbs the cold generated by the evaporator to be cooled, and then is sucked away by the fan, passes through the partition inside the indoor unit, and then exits from the air outlet on the opposite side of the fan side of the partition Flow outside the indoor unit and blow out as cool air.

The blower fan 6 of the embodiment shown in Fig. 1 is a vertical blower fan, and the blower motor 1 is installed on the top plate 52 of the indoor unit, and the blower motor 1 that may be exposed is covered by the top cover plate 41 on the top plate 52 of the indoor unit, and the blower motor 1 is composed of The motor cover 2 is covered, and the motor cover 2 can be a sheet metal part, and a heat insulating material can be arranged inside it, and the motor cover 2 can also be directly covered by a heat insulating material, so as to isolate the motor 1 from the indoor circulating air generated by the fan 6 . The motor housing 2 allows the power output shaft of the motor 1 to protrude and be connected to the fan 6 through a transmission mechanism, such as a belt transmission mechanism, and in some cases, the two can also be connected together through a transmission shaft.

In Fig. 1, the evaporator not shown is located approximately on the right of the fan 6, and the air return port of the indoor unit is approximately arranged on the bottom plate 53 of the whole machine at the lower right of the fan 6, and is arranged on the partition 51 at a position inside the paper. There is an air outlet, and the wind generated by the fan 6 enters the indoor unit from the air return port, then passes through the evaporator to absorb cold energy, then passes through the fan 6, and then enters the left side of the partition 51 from the air outlet of the partition 51, and then flows from The air outlet blows out, because the motor cover 2 isolates the motor 1 from the indoor circulating air generated by the fan 6, so the wind that absorbs the cooling capacity of the evaporator will not contact the fan motor 1, so the heat dissipation of the motor 1 is consistent with the cooling capacity of the evaporator There will be no substantial offsetting effect.

The fan motor 1 is installed on the top plate 52 of the whole machine on the one hand, and on the other hand, a motor support plate 31 is also provided on the motor cover 2 on the opposite side of the top plate 52 of the whole machine, and the motor support plate 31 supports the lower side of the motor 1 , which can reduce the impact of the vibration of the motor 1 on the overall indoor unit.

The motor housing 2 can be supported on the bottom plate 53 of the whole machine by the vertical plate 71 .

In other embodiments, a separate heat dissipation fan for the motor 1 may be considered, and the heat dissipation air of the motor 1 may be blown out from the top plate 52 .

The embodiment shown in FIG. 2 is relatively close to the embodiment shown in FIG. 1 . This embodiment continues to use the component numbers and partial content of the previous embodiments, where the same numbers are used to denote the same or similar components, and descriptions of the same technical content are selectively omitted. For the description of the omitted part, reference may be made to the foregoing embodiments, and this embodiment will not be repeated. In Fig. 2, compared with the embodiment shown in Fig. 1, the position of the motor 1 moves down, closer to the bottom plate 53 of the whole machine, and is installed on the partition 51 through the motor mounting plate 42. Similarly, the motor 1 is mounted on the motor mounting plate The motor cover 2 on the opposite side of the 42 side is provided with a motor support plate 32, and the motor cover 2 is supported on the bottom plate 53 of the whole machine by a shorter vertical plate 72. Due to the motor cover 2, the circulation generated by the motor 1 and the fan The wind is isolated so it does not affect the cooling produced by the evaporator.

Fig. 3 has shown another embodiment of the present utility model, and this embodiment continues to use the component number and part content of preceding embodiment, wherein adopts identical label to represent identical or similar component, and omits selectively illustrate. For the description of the omitted part, reference may be made to the foregoing embodiments, and this embodiment will not be repeated. In FIG. 3 , with respect to the embodiment shown in FIG. 1 , the fan 6 is replaced by a horizontal blower type, and the motor 1 is installed on the partition 51 through the motor mounting plate 43 , and the motor 1 is on the opposite side of the motor mounting plate 43 side. The motor cover 2 is provided with a motor support plate 33, and the motor cover 2 is supported on the bottom plate 53 of the whole machine by the vertical plate 73. Similarly, due to the motor cover 2, the motor 1 is isolated from the circulating air generated by the fan, so it cannot Will affect the cooling capacity produced by the evaporator.

According to the spirit of the utility model, the motor can be isolated from the indoor air system by using the casing and heat preservation material without changing the current position of the fan motor, so as to achieve the purpose of the utility model, and the current position of the fan motor can also be changed. The belt pulley or transmission shaft realizes the transmission connection with the fan.

The aforementioned embodiments are especially suitable for the improvement of existing North American rooftop air conditioners, and can also be used in other air conditioners.

In the foregoing description, unless otherwise defined, all technical terms used in the foregoing embodiments have the same meanings as commonly understood by those of ordinary skill in the art. Specific methods, devices, and materials are described in this application, but any methods and materials similar or equivalent to those described in the preceding examples can be used in the practice of the present technology. While implementations of the techniques have been described in considerable detail and by way of illustration, the illustration is for clarity of understanding only and is not intended to be limiting. Having used various terms in the description to convey an understanding of the technology, it is understood that the meaning of the various terms extends to common linguistic or grammatical variations or forms of the various terms. It should also be understood that when a term refers to a device or equipment, the term or name is provided as a contemporary example, and the technical steps are not limited by the scope of the text. The terms introduced in the preceding embodiments will be understood as having been described by present contemporary terminology, and said later introduced terms may reasonably be understood as derivatives of the contemporary terminology or the nomenclature of a subset of the system encompassed by the contemporary terminology. Furthermore, any one or more features of any embodiment of the technology may be combined with any one or more other features of any embodiment of the technology without departing from the scope of the disclosed technology. Still further, it should be understood that the technology is not limited to the embodiments that have been set forth for illustration, but that the technology is defined only by a fair reading of the claims appended to this patent application, including the rights to each element of the technology. enjoy the same effect throughout the scope.

Although the utility model is disclosed as above with preferred embodiments, it is not used to limit the utility model, and any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the utility model. Therefore, any modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention, all fall within the protection scope defined by the claims of the present invention.

Claims (6)

1. air conditioner room unit, comprise evaporimeter, blower fan and blower motor, this blower motor is for driving described blower fan, it is characterized in that, described blower motor is provided with motor case, thus isolate with the indoor circulation wind that described blower fan produces, so that the heat radiation eliminating described blower motor produces the negative function of cold to described evaporimeter.

2. air conditioner room unit as claimed in claim 1, is characterized in that, described motor case is provided with insulation material and makes described blower motor and described indoor circulation wind isolate further.

3. air conditioner room unit as claimed in claim 1, it is characterized in that, described blower motor and described blower fan are provided separately, and realize being in transmission connection between described blower motor and described blower fan by belt transmission or power transmission shaft.

4. air conditioner room unit as claimed in claim 1, it is characterized in that, described blower motor is configured with independent radiator fan.

5. air conditioner room unit as claimed in claim 1, is characterized in that, on the internal partition that described blower fan is arranged on described indoor set or on complete machine top board.

6. air conditioner room unit as claimed in claim 2, it is characterized in that, the sidewall relative with the installing plate of described blower motor of described motor case is provided with motor support plate, and described motor support plate supports the opposite side of the installing plate side of motor.