Mute variable-frequency direct-current air conditioner with wide voltage input

Abstract

The utility model discloses a mute variable-frequency direct-current air conditioner with wide voltage input, and relates to the technical field of ship engineering. Comprising a compressor and a booster which are arranged in a mute cover, the compressor is respectively connected with an evaporator and a condenser, the evaporator is connected with the condenser through an expansion valve, and a fan is arranged on one side of the evaporator. By means of the design of the built-in booster, the direct-current brushless inverter compressor and the mute cover, the effects of wide voltage input, stable refrigerating capacity output and low noise are achieved, many problems in the prior art are solved, and the air conditioner is particularly suitable for small ship air conditioner systems and has wide application prospects.

Description

Technical Field

[0001] This utility model relates to the field of marine engineering technology, specifically to a silent inverter DC air conditioner with wide voltage input. Background Technology

[0002] Most 12000 btu DC air conditioners on the market require a 48V battery to operate. However, many small boats typically only have 12V or 24V battery systems, which cannot directly drive the compressor to achieve a cooling capacity of 12000 btu / h. To solve this problem, users usually need to install an additional DC-DC boost converter. This not only increases the complexity of the power supply system but may also result in an excessively large air conditioner control box, affecting the ease of installation and use.

[0003] Furthermore, for a DC compressor to achieve a cooling capacity of 12,000 btu / h, the compressor speed needs to reach over 4,500 rpm, which also increases the noise. As battery power decreases, its output voltage will drop below 48V. Since the compressor speed is directly proportional to the voltage, the lower voltage leads to a lower compressor speed, resulting in a decrease in air conditioning capacity and an inability to stably provide the rated cooling capacity.

[0004] In summary, the existing technology has the following problems:

[0005] 1. The power supply system is complex: it requires the additional installation of a DC-DC boost converter.

[0006] 2. Large control box size: Integrating the booster into the control box will significantly increase the size.

[0007] 3. Noise issue: High-speed compressors generate a lot of noise.

[0008] 4. Unstable cooling capacity: The air conditioner's cooling capacity decreases as the battery voltage drops.

[0009] Therefore, a DC air conditioner with a wide voltage input and stable cooling capacity would meet the needs of most small marine air conditioners. At the same time, it's also necessary to reduce the noise caused by the high speed of the air conditioner compressor. Summary of the Invention

[0010] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a silent inverter DC air conditioner with wide voltage input, which is easy to install, has less noise, and is more widely applicable.

[0011] To achieve the above objectives, this utility model is implemented through the following technical solution: a silent inverter DC air conditioner with wide voltage input, including a compressor and a booster installed inside a silent enclosure, the compressor being connected to an evaporator and a condenser respectively, the evaporator and the condenser being connected through an expansion valve, and a fan being provided on one side of the evaporator.

[0012] Preferably, the soundproof cover is covered with two types of sound-insulating cotton.

[0013] Preferably, the boost converter adopts a wide voltage input of 12-48V and a stable voltage output of 48V and above.

[0014] Preferably, the compressor is a DC brushless inverter compressor.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model has a built-in boost converter, which can accept a wide voltage input and stably output a voltage of 48V (or higher). The output voltage will not decrease as the power consumption decreases. The wide voltage range allows the use of 12V or 24V batteries, making the application range wider. The voltage stabilization ensures that the output voltage is stable and maintains the original capacity of the air conditioner.

[0017] 2. It adopts a DC brushless inverter compressor, plus a soundproof cover, and is covered with at least two kinds of sound insulation cotton. The booster is built into the soundproof cover, which makes reasonable use of the space structure, reduces the amount of installation, and makes it easier to install; it reduces noise by about 10 decibels compared with traditional air conditioners. Attached Figure Description

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of another orientation of the present invention;

[0021] Figure 3 This is a schematic diagram of the present invention. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Reference Figure 1-3The specific implementation adopts the following technical solution: a silent inverter DC air conditioner with wide voltage input, including a compressor 2 and a booster 3 installed in a silent enclosure 1. The compressor 2 is connected to an evaporator 4 and a condenser 5 respectively. The evaporator 4 and the condenser 5 are connected through an expansion valve 6. A fan 7 is provided on one side of the evaporator 4 to promote air circulation and improve cooling efficiency.

[0024] It is worth noting that the soundproof cover 1 is covered with at least two types of sound-insulating cotton.

[0025] It is worth noting that the boost converter 3 adopts a wide voltage input of 12-48V and a stable voltage output of 48V and above.

[0026] In addition, the compressor 2 is a DC brushless inverter compressor.

[0027] The working principle of this specific implementation is as follows: The input voltage is converted into a stable 48V (or higher) voltage through a built-in boost converter. The stable voltage drives the DC brushless inverter compressor to achieve efficient cooling. The soundproof enclosure and sound insulation cotton effectively reduce the noise of the compressor during operation.

[0028] This specific implementation achieves wide voltage input, stable output cooling capacity, and low noise through the design of a built-in booster, DC brushless inverter compressor, and soundproof enclosure. It solves many problems in the prior art and is particularly suitable for small marine air conditioning systems, with broad application prospects.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mute variable frequency DC air conditioner with wide voltage input, characterized in that, It includes a compressor (2) and a booster (3) installed inside a soundproof enclosure (1). The compressor (2) is connected to an evaporator (4) and a condenser (5) respectively. The evaporator (4) and the condenser (5) are connected by an expansion valve (6). A fan (7) is located on one side of the evaporator (4).

2. The mute inverter of claim 1, wherein The soundproof cover (1) is covered with at least two types of sound-insulating cotton.

3. The wide voltage input mute inverter DC air conditioner according to claim 1, characterized in that, The boost converter (3) adopts a wide voltage input of 12-48V and a stable voltage output of 48V and above.

4. The mute inverter of claim 1, wherein the inverter is a wide voltage input inverter. The compressor (2) mentioned above is a DC brushless inverter compressor.

Images