Air conditioner compressor protection device suitable for severe environment

Abstract

The utility model belongs to the technical field of air conditioner compressors, and particularly relates to an air conditioner compressor protection device suitable for severe environments, which comprises a compressor end cover and two joints communicated with the compressor end cover, first heat preservation layers are bonded to the outer surfaces of the two first graphene heating pieces correspondingly, a second graphene heating piece is bonded to the end face of the compressor end cover and electrically connected to the two first graphene heating pieces, a second heat preservation layer is bonded to the side, away from the compressor end cover, of the second graphene heating piece, and the second heat preservation layer is of an annular structure; velcro is bonded to the outer sides of the two first heat preservation layers, and the length of the two Velcro is larger than that of the first heat preservation layers. According to the utility model, a graphene sheet heating mode is adopted to be conveniently attached to the curved surface of the compressor end cover, heat preservation can be carried out, and a compression cavity of the compressor can be quickly unfrozen.

Description

Technical Field

[0001] The utility model belongs to the technical field of air-conditioning compressors, and in particular relates to an air-conditioning compressor protection device suitable for harsh environments. Background Art

[0002] Air conditioning compressors are generally divided into reciprocating piston type and rotary type, but both have a compression chamber near the end surface inside the shell for connecting the refrigerant inlet and outlet pipes. For extremely cold regions, the air conditioner outdoor unit still needs to be ventilated, and its internal compressor will face the cold air directly. When the air conditioner is shut down, the compressor may be blocked by frozen refrigerant, and protective measures need to be taken.

[0003] In order to start the air conditioner safely, pre-ventilation defrosting and hot air defrosting are very necessary. An electric heater is installed outside the compressor to heat the auxiliary refrigerant pipeline before the compressor is started to melt the frozen refrigerant.

[0004] When protecting the air-conditioning compressor, an electric heating tube is installed on the outside of the refrigerant inlet and outlet pipes. It can generate heat and thaw when powered on. However, the electric heating tube is far away from the compression chamber, which is generally close to the compressor end cover. Even if an additional electric heating tube is installed, it will be blocked by the bolts of the end cover, which is not conducive to the rapid thawing of the compressor compression chamber. For this reason, we propose an air-conditioning compressor protection device suitable for harsh environments. Utility Model Content

[0005] The utility model aims to provide an air-conditioning compressor protection device suitable for harsh environments, which adopts a graphene sheet heating method to conveniently fit the curved surface of the compressor end cover, can be used for heat preservation, and is conducive to the rapid thawing of the compressor compression chamber.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A protective device for air conditioner compressors suitable for harsh environments, comprising a compressor end cover and two joints connected to the compressor end cover, wherein the outer sides of the two joints are sleeved with a first graphene heating sheet in a "C"-shaped structure, the outer surfaces of the two first graphene heating sheets are bonded with a first thermal insulation layer, the end surface of the compressor end cover is bonded with a second graphene heating sheet, the second graphene heating sheet is electrically connected to the two first graphene heating sheets, the second graphene heating sheet is bonded with a second thermal insulation layer on a side away from the compressor end cover, the second thermal insulation layer is in an annular structure, and before the air conditioner is started, the first graphene heating sheet is bonded with a second graphene heating sheet. The graphene heating sheet and the second graphene heating sheet are powered, the first graphene heating sheet is used to heat the two joints, and the second graphene heating sheet heats the end face of the compressor end cover to transfer heat to the compression chamber. The graphene sheet heating method is used to facilitate fitting the curved surface of the compressor end cover. At the same time, the first thermal insulation layer and the second thermal insulation layer are used to protect the first graphene heating sheet and the second graphene heating sheet respectively, which can be used for heat preservation and the bolts of the compressor end cover can be staggered, which is beneficial to the rapid thawing of the compressor compression chamber and facilitates the smooth flow of refrigerant between the two joints and the compression chamber, so that the air-conditioning compressor can be safely started.

[0008] Velcro is bonded to the outer sides of the two first thermal insulation layers, and the lengths of the two Velcros are greater than the length of the first thermal insulation layer. One side of the Velcro is a male sticker and the other side is a female sticker. One end of the Velcro is passed around the adjacent first thermal insulation layer and adhered to its outer surface to restrain the first thermal insulation layer and the first graphene heating sheet.

[0009] A hexagonal ceramic ring is bonded to the inner side of the second thermal insulation layer. The ceramic ring can cover adjacent bolts. The ceramic ring also passes through the second graphene heating plate to separate the second graphene heating plate and adjacent bolts, so as to facilitate the heat of the second graphene heating plate to be concentrated on the compressor end cover.

[0010] A wire cloth sleeve is fixed to the lower edge of the second graphene heating plate, and the wire cloth sleeve is used to wrap the transmission cable of the second graphene heating plate, which is wear-resistant and puncture-resistant.

[0011] A plastic frame is bonded to the outer edge of the second insulation layer, and the outer surface of the plastic frame is bonded to the outer edge of the second graphene heating plate. The plastic frame is used to support the second insulation layer so that the second insulation layer is not too loose and maintains its shape to cover the second graphene heating plate.

[0012] Insulating strips are bonded to both end surfaces of the two first graphene heating plates, and the side of the insulating strips away from the joints is bonded to the outer surface of the adjacent first insulation layer. After the two first graphene heating plates are bent, the insulating strips are used to separate the two ends of the first graphene heating plates to prevent the first graphene heating plates from being short-circuited.

[0013] The technical effects achieved by the utility model are:

[0014] The utility model discloses an air-conditioning compressor protection device suitable for harsh environments. Before the air-conditioning is started, power is supplied to the first graphene heating sheet and the second graphene heating sheet, the first graphene heating sheet is used to heat the two joints, the second graphene heating sheet heats the end face of the compressor end cover, and the heat is transferred to the compression chamber. The graphene sheet heating method is used to conveniently fit the curved surface of the compressor end cover. At the same time, the first thermal insulation layer and the second thermal insulation layer are used to protect the first graphene heating sheet and the second graphene heating sheet respectively, so as to keep warm and stagger the bolts of the compressor end cover, which is beneficial to the rapid thawing of the compressor compression chamber and facilitates the smooth flow of refrigerant between the two joints and the compression chamber, so that the air-conditioning compressor can be started safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a diagram of the utility model;

[0016] Figure 2 It is a diagram of the utility model;

[0017] Figure 3 It is a diagram of the utility model;

[0018] Figure 4 It is a diagram of the utility model;

[0019] Figure 5 It is a diagram of the present utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Compressor end cover; 2. Joint; 3. First graphene heating plate; 4. First insulation layer; 5. Second graphene heating plate; 6. Second insulation layer; 7. Velcro; 8. Ceramic ring; 9. Wire cloth cover; 10. Plastic frame; 11. Insulation strip. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0023] like Figure 1-5 As shown, a protective device for air-conditioning compressors suitable for harsh environments includes a compressor end cover 1 and two joints 2 connected to the compressor end cover 1, and a compression chamber connected to the two joints 2 is fixed inside the compressor end cover 1;

[0024] Among them, the outer sides of the two joints 2 are both sleeved with a first graphene heating sheet 3 in a "C"-shaped structure, the outer surfaces of the two first graphene heating sheets 3 are bonded with a first thermal insulation layer 4, the end face of the compressor end cover 1 is bonded with a second graphene heating sheet 5, the second graphene heating sheet 5 is directly facing the compression chamber, the second graphene heating sheet 5 is electrically connected to the two first graphene heating sheets 3, and the second graphene heating sheet 5 is bonded with a second thermal insulation layer 6 on the side away from the compressor end cover 1. The second thermal insulation layer 6 is annular in structure, and the second thermal insulation layer 6 and the two first thermal insulation layers 4 can be made of polyurethane foam. Before the air conditioner is started, the first graphene heating sheet 5 is bonded with a second thermal insulation layer 6. The heat sheet 3 and the second graphene heating sheet 5 are powered, the first graphene heating sheet 3 is used to heat the two joints 2, the second graphene heating sheet 5 heats the end face of the compressor end cover 1, and the heat is transferred to the compression chamber. The graphene sheet heating method is used to facilitate fitting the curved surface of the compressor end cover 1. At the same time, the first thermal insulation layer 4 and the second thermal insulation layer 6 are used to protect the first graphene heating sheet 3 and the second graphene heating sheet 5 respectively, which can be used for insulation and the bolts of the compressor end cover 1 can be staggered, which is beneficial to the rapid thawing of the compressor compression chamber and facilitates the smooth flow of refrigerant between the two joints 2 and the compression chamber, so that the air-conditioning compressor can be safely started.

[0025] For the first graphene heating sheet 3 and the second graphene heating sheet 5, both can be connected in series to the air conditioning control panel, with an operating voltage of 12V and heating within a temperature range of 30 to 50°C. Both the graphene material and the polyurethane foam material are easy to bend and can be well bent outside the joint 2.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, Velcro 7 is bonded to the outer sides of the two first thermal insulation layers 4. The lengths of the two Velcro 7 are both greater than the length of the first thermal insulation layer 4. One side of the Velcro 7 is a male sticker and the other side is a female sticker. One end of the Velcro 7 is passed around the adjacent first thermal insulation layer 4 and adhered to its outer surface to restrain the first thermal insulation layer 4 and the first graphene heating plate 3.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, a hexagonal ceramic ring 8 is bonded to the inner side of the second insulation layer 6. The ceramic ring 8 can cover adjacent bolts. The ceramic ring 8 also passes through the second graphene heating plate 5 to separate the second graphene heating plate 5 and adjacent bolts, so as to facilitate the heat of the second graphene heating plate 5 to be concentrated on the compressor end cover 1.

[0028] like Figure 1 , Figure 3 and Figure 4 As shown, a wire cloth sleeve 9 is fixed to the lower edge of the second graphene heating plate 5, and the wire cloth sleeve 9 is used to wrap the transmission cable of the second graphene heating plate 5, which is wear-resistant and puncture-resistant.

[0029] like Figure 1 and Figure 4 As shown, a plastic frame 10 is bonded to the outer edge of the second thermal insulation layer 6, and the outer surface of the plastic frame 10 is bonded to the outer edge of the second graphene heating plate 5. The plastic frame 10 is used to support the second thermal insulation layer 6, so that the second thermal insulation layer 6 is not too loose and maintains its shape to cover the second graphene heating plate 5.

[0030] like Figure 3 and Figure 5 As shown, both end surfaces of the two first graphene heating plates 3 are bonded with insulating strips 11, and the insulating strips 11 can be made of rubber material. The side of the insulating strips 11 away from the joint 2 is bonded to the outer surface of the adjacent first insulation layer 4. After the two first graphene heating plates 3 are bent, the insulating strips 11 are used to separate the two ends of the first graphene heating plates 3 to avoid short-circuiting of the first graphene heating plates 3.

[0031] The working principle of the utility model is as follows: before the air conditioner is started, power is supplied to the first graphene heating sheet 3 and the second graphene heating sheet 5, the first graphene heating sheet 3 is used to heat the two joints 2, and the second graphene heating sheet 5 heats the end face of the compressor end cover 1, and the heat is transferred to the compression chamber. The graphene sheet heating method is used to facilitate fitting the curved surface of the compressor end cover 1. At the same time, the first thermal insulation layer 4 and the second thermal insulation layer 6 are used to protect the first graphene heating sheet 3 and the second graphene heating sheet 5 respectively, so as to keep warm and stagger the bolts of the compressor end cover 1, which is beneficial to the rapid thawing of the compressor compression chamber and facilitates the smooth flow of refrigerant between the two joints 2 and the compression chamber, so that the air conditioner compressor can be started safely.

[0032] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A protective device for air conditioner compressors in harsh environments, comprising a compressor end cover (1) and two connectors (2) connected to the compressor end cover (1), characterized in that: A first graphene heating sheet (3) in a "C"-shaped structure is sleeved on the outer side of the two joints (2); a first thermal insulation layer (4) is bonded to the outer surface of the two first graphene heating sheets (3); a second graphene heating sheet (5) is bonded to the end surface of the compressor end cover (1); the second graphene heating sheet (5) is electrically connected to the two first graphene heating sheets (3); a second thermal insulation layer (6) is bonded to the side of the second graphene heating sheet (5) away from the compressor end cover (1); and the second thermal insulation layer (6) is in an annular structure.

2. The air conditioner compressor protection device suitable for harsh environments according to claim 1, characterized in that: Velcro (7) is bonded to the outer sides of the two first thermal insulation layers (4), and the length of the two Velcro (7) is greater than the length of the first thermal insulation layer (4).

3. The air conditioner compressor protection device suitable for harsh environments according to claim 1 is characterized in that: A hexagonal ceramic ring (8) is bonded to the inner side of the second thermal insulation layer (6).

4. The air conditioner compressor protection device suitable for harsh environments according to claim 1 is characterized in that: A wire sleeve (9) is fixed to the lower edge of the second graphene heating plate (5).

5. The air conditioner compressor protection device suitable for harsh environments according to claim 1 is characterized in that: A plastic frame (10) is bonded to the outer edge of the second thermal insulation layer (6), and the outer surface of the plastic frame (10) is bonded to the outer edge of the second graphene heating plate (5).

6. The air conditioner compressor protection device suitable for harsh environments according to claim 1, characterized in that: Insulating strips (11) are bonded to both end surfaces of the two first graphene heating plates (3), and the sides of the insulating strips (11) away from the joints (2) are bonded to the outer surfaces of the adjacent first thermal insulation layers (4).

Images