Air conditioning device

Abstract

The utility model discloses an air conditioning device, which belongs to the field of air conditioners and comprises a case, a partition plate, a fan and a controller. The partition plate is vertically arranged in the machine box and divides the interior of the machine box into a compressor cavity and a fan cavity, and air outlet holes are formed in the partition plate. The air inlet hole used for communicating the compressor cavity with the outside of the case is formed in the bottom of the case, so that negative pressure can be generated in the compressor cavity and refrigerants leaked from the compressor cavity can be forcibly discharged to the outside of the case through the fan when the fan works, and after the air conditioning device is powered off and the fan stops working, the compressor cavity can be forcibly discharged to the outside of the case through the fan. And cold remaining in the compressor cavity can be naturally discharged out of the case through the air inlet holes, so that when the air conditioner is overhauled, it can be ensured that the concentration of a refrigerant in the compressor cavity is not too high, and potential safety hazards can be reduced. In addition, a refrigerant leakage monitoring sensor is arranged in the compressor cavity, so that the maximum air speed of the fan can be adjusted when the refrigerant leaks.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an air conditioning device. Background Art

[0002] In the existing technology, highly flammable refrigerants such as R290, R50, R170, R600, R600a, R1150, R1270, and E170 have excellent characteristics such as high efficiency, environmental protection, and low cost, and have attracted the attention of various developers. However, the compressor cavity of existing air conditioners is generally relatively sealed. When the refrigerant leaks, the refrigerant concentration in the compressor cavity is high, which poses a safety hazard of explosion. There are also greater safety hazards when maintenance personnel directly disassemble the machine to maintain the equipment.

[0003] In order to solve the above technical problems, a Chinese patent document with authorization announcement number CN208952246U discloses a structure and an air conditioner for reducing the concentration of refrigerant leakage, and specifically discloses that by arranging air inlet holes on the front panel, rear panel or right side panel of the outer shell and air outlet holes on the wind shielding plate, the air circulation in the compressor cavity can be carried out through the negative pressure of the external unit fan blade, the accumulation of refrigerant in this cavity can be reduced, and the safety of the product can be improved.

[0004] However, in the above-disclosed structure for reducing the concentration of refrigerant leakage, the bottom of the shell is not provided with an air outlet structure for discharging the refrigerant, and the density of the refrigerant is higher than the density of the air. When the air conditioner is shut down for maintenance, the residual refrigerant cannot be effectively discharged from the compressor cavity through the air inlet hole, thereby increasing safety hazards.

[0005] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, an object of the present utility model is to provide an air conditioning device, aiming to solve the problem that when the air conditioner is shut down for maintenance, the refrigerant remaining in the compressor cavity cannot be effectively discharged from the compressor cavity because it is not forced out by the fan.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An air conditioning device comprises a chassis, a partition, a fan and a controller electrically connected to the fan; the partition is vertically arranged in the chassis, and the partition divides the interior of the chassis into a compressor chamber and a fan chamber; an air inlet is arranged at the bottom of the chassis, and the air inlet is used to connect the compressor chamber with the outside of the chassis, an air outlet is arranged on the partition, a refrigerant leakage monitoring sensor is arranged in the compressor chamber, and the refrigerant leakage monitoring sensor is electrically connected to the controller.

[0009] Furthermore, there are a plurality of air inlet holes, and the air inlet holes are distributed at intervals at the bottom of the chassis.

[0010] Furthermore, a baffle is provided above the air inlet, and both ends of the baffle are downwardly extended to form extension portions connected to the bottom of the chassis.

[0011] Furthermore, the air outlet hole is arranged on the partition plate and extends along the length direction of the partition plate, and the upper hole wall of the air outlet hole is arranged to be inclined toward the compressor cavity, and the lower hole wall of the air outlet hole is arranged to be inclined toward the fan cavity.

[0012] Furthermore, a fixing part is arranged in the compressor cavity; the fixing part is in an inverted L shape, and the fixing part is used to fix the refrigerant leakage monitoring sensor above the air inlet.

[0013] Furthermore, a cable hole is provided at a lower portion of a side surface of the chassis, and the cable hole is communicated with the compressor cavity.

[0014] Furthermore, the chassis includes a box body and a front panel of the box body; at least two exhaust ports are provided on the front panel of the box body, and the number of fans in the fan chamber corresponds to the number of exhaust ports.

[0015] Furthermore, a plurality of hooks are connected to the back of the front panel of the box, and a hanging hole cooperating with the hanging plate is provided on the box.

[0016] Beneficial effects:

[0017] The utility model provides an air-conditioning device, which provides an air inlet hole at the bottom of a chassis to connect the compressor chamber with the outside of the chassis, so that not only can a negative pressure be generated in the compressor chamber when the fan is working, but the refrigerant leaked in the compressor chamber can be forcibly discharged to the outside of the chassis through the fan, and after the air-conditioning device is powered off and the fan stops working, the cold remaining in the compressor chamber can be naturally discharged to the outside of the chassis through the air inlet hole, so that when the air conditioner is inspected and repaired, it can be ensured that the concentration of the refrigerant in the compressor chamber will not be too high, and the safety hazard can be reduced.

[0018] In addition, the utility model arranges a refrigerant leakage monitoring sensor in the compressor cavity. When refrigerant leakage occurs, the refrigerant leakage monitoring sensor feeds back a signal to the controller, causing the controller to increase the speed of the fan to the maximum speed, thereby allowing the refrigerant in the compressor cavity to be forced to be discharged to the outside of the chassis at the fastest speed, shortening the time that the refrigerant stays in the compressor cavity, thereby further reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of the air conditioning device provided by the utility model.

[0020] Figure 2 for Figure 1 Enlarged view of part A.

[0021] Figure 3 for Figure 1 Enlarged view of part B.

[0022] Figure 4 It is a schematic diagram of the structure of the hook.

[0023] Reference numerals:

[0024] 1-chassis; 11-box; 111-compressor cavity; 112-air inlet; 113-cable hole; 114-exhaust port; 115-hanging hole; 12-baffle; 13-box front panel; 14-hook;

[0025] 2-partition plate; 21-air outlet;

[0026] 3-Refrigerant leakage monitoring sensor;

[0027] 4-Fixers. DETAILED DESCRIPTION

[0028] The utility model provides an air conditioning device. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means more than two.

[0030] See also Figure 1 and Figure 2The utility model provides an air-conditioning device, including a chassis 1, a partition 2, a fan and a controller. The partition 2 is vertically arranged in the chassis 1, and the partition 2 divides the interior of the chassis 1 into a compressor chamber 111 and a fan chamber. The fan is arranged in the fan chamber, and the fan is electrically connected to the controller (the controller is arranged on the main control circuit board). An air inlet 112 is arranged at the bottom of the chassis 1, and the air inlet 112 is used to connect the compressor chamber 111 with the outside of the chassis 1, and an air outlet 21 is arranged on the partition 2. The arrangement of the air inlet 112 and the air outlet 21 enables a negative pressure to be generated in the compressor chamber 111 when the fan is working, and the refrigerant leaked in the compressor chamber 111 can be forcibly discharged to the outside of the chassis 1 through the fan.

[0031] A refrigerant leakage monitoring sensor is provided in the compressor cavity 111, and the refrigerant leakage monitoring sensor is electrically connected to the controller. The refrigerant leakage monitoring sensor can detect whether refrigerant leakage occurs in the compressor cavity 111. When the refrigerant leaks, the refrigerant leakage monitoring sensor feeds back a signal to the controller, and then controls the fan through the controller to increase the speed of the fan to the maximum speed, so that the refrigerant leaked in the compressor cavity 111 enters the fan cavity through the air outlet 21, and then is discharged to the outside of the chassis 1. When the speed of the fan is increased to the maximum speed, the maximum speed of the fan is maintained for 10s by the controller, and then the air conditioning device is powered off. At this time, since the bottom of the chassis 1 is provided with an air inlet 112, before the air conditioner is repaired, the refrigerant remaining in the compressor cavity 111 (the density of the refrigerant is higher than the density of the air, so that the refrigerant can be emitted downward) can be naturally discharged to the outside of the chassis 1 through the air inlet 112, so that when the air conditioner is repaired, it can be ensured that the concentration of the refrigerant in the compressor cavity 111 will not be too high, and the safety hazard can be reduced.

[0032] Specifically, the model of the refrigerant leakage sensor may be AM4205, but is not limited to this model.

[0033] Furthermore, a plurality of air inlet holes 112 are provided, and the air inlet holes 112 are spaced apart at the bottom of the chassis 1. By providing a plurality of air inlet holes 112, when the fan is working and the fan speed is increased, more air can be introduced into the compressor chamber 111, thereby accelerating the speed at which the refrigerant is discharged to the outside of the chassis 1 through the fan.

[0034] In addition, when a plurality of air inlet holes 112 are provided, the air inlet holes 112 do not need to be too large, thereby preventing mice from entering the compressor chamber 111 and gnawing on the internal circuits.

[0035] like Figure 1 and Figure 2As shown, further, a baffle 12 is provided above the air inlet 112, and both ends of the baffle 12 are downwardly extended with extensions connected to the bottom of the chassis 1. The baffle 12 can effectively block mice and ensure that mice do not enter the compressor chamber 111.

[0036] like Figure 1 and Figure 2 As shown, further, the air outlet hole 21 is extended along the length direction of the partition 2 and is arranged on the partition 2, and the upper hole wall of the air outlet hole 21 is inclined toward the compressor chamber 111, and the lower hole wall of the air outlet hole 21 is inclined toward the fan chamber. The upper hole wall and the lower hole wall of the air outlet hole 21 are inclined so that the hole wall of the air outlet hole 21 can be used to guide the air carrying the refrigerant, thereby accelerating the flow of air inside the chassis 1, so that the refrigerant can be forced to be discharged to the outside of the chassis 1 at a faster speed.

[0037] like Figure 1 and Figure 2 As shown, further, a fixing member 4 is provided in the compressor chamber 111 ; the fixing member 4 is in an inverted L-shape, and the fixing member 4 is used to fix the refrigerant leakage monitoring sensor above the air inlet 112 .

[0038] Since the density of the refrigerant is greater than the density of the air, when the refrigerant leaks, the refrigerant concentration in the area near the bottom of the chassis 1 in the compressor chamber 111 is higher than that in other areas. Based on this situation, the utility model fixes the refrigerant leakage monitoring sensor above the air inlet 112, so that the monitoring result of the sensor can truly reflect the collection of the leaked refrigerant in the compressor chamber 111, and the speed of the fan can be increased at the correct time, and the situation where the refrigerant concentration in the compressor chamber 111 is too high and the effect of the fan forced to discharge the refrigerant is limited will not occur.

[0039] like Figure 1 As shown, further, a cable hole 113 is provided on the lower side of the chassis 1, and the cable hole 113 is connected to the compressor cavity 111. On the one hand, it can allow the cable to pass through, and on the other hand, it can also play a role in heat dissipation inside the compressor cavity 111, and at the same time, it can also allow a part of the leaked refrigerant to be discharged through the cable hole 113.

[0040] like Figure 1 As shown, further, the chassis 1 includes a box body 11 and a box body front panel 13; the box body front panel 13 is provided with at least two exhaust ports 114, the number of fans in the fan chamber corresponds to the number of exhaust ports 114, and a fan mesh cover is provided at the exhaust ports 114. By providing multiple exhaust ports 114 and fans, the forced exhaust speed and efficiency of the refrigerant can be improved.

[0041] like Figure 1 , Figure 3 and Figure 4 As shown, further, the back of the box front panel 13 is connected with a plurality of hooks 14, and the hooks 14 can be inverted hooks 14. The box 11 is provided with hanging holes 115 that cooperate with the hanging plate, so that the box front panel 13 can be hung on the front side of the box 11, saving the number of screws used.

[0042] The box body front panels 13 may be provided in two pieces, and the two box body front panels 13 are respectively hung on the box body 11 at the front sides of the compressor cavity 111 and the fan cavity.

[0043] To sum up, the utility model provides an air inlet hole at the bottom of the chassis for connecting the compressor cavity with the outside of the chassis. This can not only generate negative pressure in the compressor cavity when the fan is working, but also forcibly discharge the refrigerant leaked in the compressor cavity to the outside of the chassis through the fan. Moreover, after the air-conditioning device is powered off and the fan stops working, the cold remaining in the compressor cavity can be naturally discharged to the outside of the chassis through the air inlet hole. Therefore, when the air conditioner is inspected and repaired, it can be ensured that the concentration of the refrigerant in the compressor cavity will not be too high, and the safety hazard can be reduced.

[0044] In addition, the utility model arranges a refrigerant leakage monitoring sensor in the compressor cavity. When refrigerant leakage occurs, the refrigerant leakage monitoring sensor feeds back a signal to the controller, causing the controller to increase the speed of the fan to the maximum speed, thereby allowing the refrigerant in the compressor cavity to be forced to be discharged to the outside of the chassis at the fastest speed, shortening the time that the refrigerant stays in the compressor cavity, thereby further reducing safety hazards.

[0045] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the claims attached to the utility model.

Claims

1. An air conditioning device, comprising a chassis, a partition, a fan, and a controller electrically connected to the fan; the partition is vertically arranged in the chassis, and the partition divides the interior of the chassis into a compressor chamber and a fan chamber; characterized in that: An air inlet is provided at the bottom of the chassis, and the air inlet is used to connect the compressor cavity with the outside of the chassis. An air outlet is provided on the partition. A refrigerant leakage monitoring sensor is provided in the compressor cavity, and the refrigerant leakage monitoring sensor is electrically connected to the controller.

2. The air conditioning device according to claim 1, characterized in that: There are a plurality of air inlet holes, and the air inlet holes are distributed at intervals on the bottom of the chassis.

3. The air conditioning device according to claim 1 or 2, characterized in that: A baffle is arranged above the air inlet, and both ends of the baffle extend downward to form extension parts connected to the bottom of the chassis.

4. The air conditioning device according to claim 1, characterized in that: The air outlet hole is arranged on the partition plate and extends along the length direction of the partition plate, and the upper hole wall of the air outlet hole is arranged to be inclined facing the compressor cavity, and the lower hole wall of the air outlet hole is arranged to be inclined facing the fan cavity.

5. The air conditioning device according to claim 1, characterized in that: A fixing piece is arranged in the compressor cavity; the fixing piece is in an inverted L shape, and is used to fix the refrigerant leakage monitoring sensor above the air inlet.

6. The air conditioning device according to claim 1, characterized in that: A cable hole is provided at the lower part of the side of the chassis, and the cable hole is communicated with the compressor cavity.

7. The air conditioning device according to claim 1, characterized in that: The chassis includes a box body and a front panel of the box body; at least two exhaust ports are arranged on the front panel of the box body, and the number of fans in the fan chamber corresponds to the number of exhaust ports.

8. The air conditioning device according to claim 7, characterized in that: The back of the front panel of the box body is connected with a plurality of hooks, and the box body is provided with hanging holes matched with the hanging plates.

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