Refrigerator compressor mounting plate and manufacturing process thereof

Abstract

The application discloses a refrigerator compressor mounting plate and a manufacturing process thereof, and relates to the technical field of refrigerator accessories.The refrigerator compressor mounting plate comprises a structural layer, one side of the structural layer is provided with a conductive layer, the surface of the structural layer is provided with a mounting groove, the surface of the mounting groove is provided with a metal panel, the surface of the metal panel is provided with a nut, one side of the surface of the structural layer and located on the same side of the mounting groove is provided with a boss, and the surface of the boss is provided with a grounding screw hole.The refrigerator compressor mounting plate adopts a structural layer of continuous fiber reinforced epoxy resin or polyurethane resin as a main body material, reduces the specific gravity of the whole, ensures the strong bending strength, is not prone to deformation, and ensures the conductivity of the mounting plate through the conductive layer arranged on the surface;and the flame-retardant epoxy resin is adopted to ensure the flame retardance of the mounting plate.

Description

Technical Field

[0001] This invention relates to the field of refrigerator accessories technology, specifically to a refrigerator compressor mounting plate and its manufacturing process. Background Technology

[0002] Currently, refrigerator compressor mounting plates (hereinafter referred to as mounting plates) are generally made of metal sheets. They are formed through a complex process of punching and multiple stamping steps, and due to the high density of metal, a large amount of material is used. Due to the inherent properties of metal, it is susceptible to permanent deformation when subjected to impacts exceeding its yield strength, causing appearance or functional problems. This phenomenon is particularly prone to occur during refrigerator loading and unloading. In the refrigerator logistics process, deformation frequently occurs due to road bumps or forceful loading and unloading. Furthermore, while the metal material used is usually galvanized steel, which has acceptable corrosion resistance in general environments, it is still very prone to rusting in humid and rainy areas. For these reasons, existing refrigerator compressor mounting plates suffer from problems such as heavy weight, complex manufacturing process, high cost, poor resistance to deformation, and susceptibility to corrosion. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a refrigerator compressor mounting plate and its manufacturing process, solving the problems of existing refrigerator compressor mounting plates being heavy, complex in process, costly, poor in resistance to deformation, and susceptible to corrosion.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: a refrigerator compressor mounting plate, comprising a structural layer, two parallel ribs on the surface of the structural layer, a conductive layer on one side of the surface of the structural layer, a mounting groove on the surface of the structural layer near the ribs, a metal insert on the surface of the mounting groove, a nut on the surface of the metal insert, a boss on one side of the surface of the structural layer on the same side as the mounting groove, a grounding screw hole on the surface of the boss, first fixing holes on the surface of the structural layer near both ends, a pad on the surface of the metal insert, extension plates fixedly connected to both ends of the structural layer, protrusions on the surface of the extension plates, and second fixing holes on the surface of the protrusions.

[0007] Preferably, the extension plate and the structural layer are an integral structure, and the structural layer and the extension plate are made of continuous fiber reinforced epoxy resin or polyurethane resin.

[0008] Preferably, the conductive layer adopts a metal material or a non-metal material, the metal material is selected from one of aluminum foil, copper foil or stainless steel foil, and the non-metal material is selected from one of carbon cloth or graphene.

[0009] Preferably, when the conductive layer adopts a metal material, the thickness of the conductive layer is. mm, and when the conductive layer adopts a non-metal material, the thickness of the conductive layer is. mm.

[0010] Preferably, a mounting rack is arranged in the one-side groove of the protrusion, and the mounting rack is fixed to the inner wall of the refrigerator body.

[0011] Preferably, the metal panel adopts a galvanized steel sheet, the metal panel and the mounting groove are fixed by resin bonding, the gusset plate and the metal panel are fixed by resin bonding, and the surface of the gusset plate is provided with through holes matched with nuts.

[0012] A manufacturing process of a refrigerator compressor mounting plate, comprising the following steps:

[0013] S1, treatment of the metal panel: punching the required blank from the galvanized steel sheet, placing the blank on a plane for surface spraying, and placing the sprayed blank in an oven at a temperature of 180-220°C for 5-10 minutes and taking it out for standby;

[0014] S2, treatment of the metal aluminum foil: unwinding the metal aluminum foil, and coating a surface treatment agent on the surface of the aluminum foil by roller coating or spraying, with a coating amount of 20-25 g / m 2 , and then entering an oven at a temperature of 180-220°C for 20-30 seconds for drying, and punching the dried aluminum foil into a rectangular blank for standby;

[0015] S3, pretreatment of the glass fiber cloth: adding acetic acid to 95% ethanol, adjusting the pH value of the solution to 4.3-4.4 by adding acetic acid, adding 2%-5% titanate coupling agent, standing for 30 min, placing the glass fiber cloth in an oven at 450°C for heating for 30 min, immersing the dried glass fiber cloth in the ethanol solution containing the titanate coupling agent for 10-15 min, then taking it out and baking in an oven at 60-70°C for 10 min until the surface is dry, and then heating to 120-140°C for 2 h;

[0016] S4, flame-retardant modification of the epoxy resin: mixing the epoxy resin with the 2-butyl-2-ethyl-1,3-propanediol brominated epoxy resin flame retardant in a mass ratio of 6:4, and fully stirring and mixing uniformly at 70°C for standby;

[0017] S5, preparation of the impregnation solution: adding 4,4-diamino diphenyl methane and toluene to the modified epoxy resin obtained in step S4, fully stirring and mixing uniformly at room temperature to obtain the impregnation solution for standby;

[0018] S6, the glass fiber fabric preparation: the glass fiber fabric obtained in step S3 is placed in the sizing liquid obtained in step S5 for 5 min, taken out and dried, and then the sizing glass fiber fabric is cut;

[0019] S7, the installation plate laminated forming: according to the design thickness of the installation plate, 4-8 pieces of the sizing glass fiber fabric in step S6 are stacked in the concave die of the installation plate hot-pressing mold, and one piece of the metal foil cut in step S2 is placed on the uppermost layer, the metal panel in step S1 is placed in the convex die of the hot-pressing mold, the mold is closed, and the installation plate blank is prepared under the molding process of temperature 260℃, pressure 80MPa, and pressure maintaining time 10-12min, the blank is placed in the punching die to cut off the edge, and then the nut is riveted, the backing plate is installed, the grounding screw hole, the first fixing hole and the second fixing hole are processed, and the installation plate finished product is obtained.

[0020] Preferably, in step S1, the surface spraying material adopts a mixture of polyamide and epoxy resin, and the proportion is 1:1.

[0021] Preferably, in step S2, the surface treatment agent adopts epoxy resin as the resin matrix, and silane coupling agent as the crosslinking agent, and the addition proportion of the silane coupling agent is 0.5%-2%, and the stirring is uniform.

[0022] Preferably, in step S5, the addition proportion of the modified epoxy resin, 4,4-diaminodiphenyl methane and toluene is 1.5:1:1.

[0023] (Three) beneficial effects

[0024] The application provides a refrigerator compressor installation plate and a manufacturing process thereof.

[0025] The refrigerator compressor installation plate has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural perspective view of the application;

[0027] Figure 2 It is a structural plan view of the application;

[0028] Figure 3 It is a structural perspective view of the application; Figure 2 A-A sectional view of the application.

[0029] In the figure: 1-structure layer, 2-conductive layer, 3-mounting groove, 4-metal panel, 5-nut, 6- boss, 7-ground screw hole, 8-first fixing hole, 9-pad, 10- extension plate, 11-boss, 12-second fixing hole, 13-mounting frame. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0031] Please refer to Figures 1-3 The present application provides a technical solution: a refrigerator compressor mounting plate, comprising a structure layer 1, the structure layer 1 is made of continuous fiber reinforced epoxy resin or polyurethane resin, the surface of the structure layer 1 is provided with two parallel ribs, the surface of one side of the structure layer 1 is provided with a conductive layer 2, the conductive layer 2 is made of metal material or non-metal material, the metal material is selected from one of aluminum foil, copper foil or stainless steel foil, and the non-metal material is selected from one of carbon cloth or graphene;

[0032] The surface of the structure layer 1 and located at the rib is provided with a mounting groove 3, the mounting groove 3 is provided with two, the surface of the mounting groove 3 is provided with a metal panel 4, the metal panel 4 is in the shape of dumbbell, the surface of the metal panel 4 is provided with a nut 5, two through holes for fixing the nut 5 are provided on each metal panel 4, the nut 5 is riveted and fixed with the metal panel 4 after the mounting plate is made, the surface of the structure layer 1 and located at the corresponding position of the nut 5 is provided with a bolt through hole, one side of the surface of the structure layer 1 and located at the same side of the mounting groove 3 is provided with a boss 6, the conductive layer 2 extends to the surface of the boss 6, the surface of the boss 6 is provided with a ground screw hole 7, which can be used for fixing the grounding wire terminal ring.

[0033] When the conductive layer 2 is made of metal material, the thickness of the conductive layer 2 is 0.01-0.1mm, and when the conductive layer 2 is made of non-metal material, the thickness of the conductive layer 2 is 0.1-0.2mm.

[0034] The two ends of the structural layer 1 are provided with first fixing holes 8 for fixing the mounting plate to the lower end surface of the refrigerator side plate, and the surface of the metal panel 4 is further provided with a backing plate 9, which increases the contact area with the compressor base and increases the stability, and the thickness of the backing plate 9 is greater than the thickness of the nut 5 protruding from the metal panel 4. The two ends of the structural layer 1 are fixedly connected with extension plates 10, and the distance between the two extension plates 10 is less than the distance between the two side plates of the refrigerator, so that the mounting plate can be smoothly placed into the refrigerator. The surface of the extension plate 10 is provided with a protrusion 11, and the surface of the protrusion 11 is provided with a second fixing hole 12. A mounting bracket 13 is arranged in the groove on one side of the protrusion 11. The mounting bracket 13 is fixed to the inner wall of the refrigerator body, and the second fixing hole 12 is connected with the mounting bracket 13 through a fastener, thereby increasing the fixed position of the mounting plate and the refrigerator side plate and improving the stability.

[0035] The metal panel 4 is made of galvanized steel sheet, and the metal panel 4 and the mounting groove 3 are fixed by resin bonding, and the backing plate 9 and the metal panel 4 are fixed by resin bonding.

[0036] A refrigerator compressor mounting plate, the structural layer 1 is made of continuous fiber reinforced epoxy resin material, and the conductive layer 2 is made of aluminum foil material. The manufacturing process includes the following steps:

[0037] S1, treatment of the metal panel: punching the required blank from the galvanized steel sheet, the thickness of the galvanized steel sheet is 0.8-1.5mm, placing the blank on a flat surface for surface spraying, and placing the sprayed blank in a temperature of 180-220℃ for 5-10 minutes to promote cross-linking and curing of the two to form a film. The main function of the resin film is to improve the adhesion between the metal panel and the main material of the mounting plate. Then take it out for standby. The surface spraying material is a mixture of polyamide and epoxy resin with a ratio of 1:1, and the epoxy resin is used as the resin matrix and the polyamide is used as the cross-linking curing agent;

[0038] S2, treatment of the metal aluminum foil: unwinding the metal aluminum foil, and applying a surface treatment agent on the surface of the aluminum foil by roller coating or spraying. The surface treatment agent uses epoxy resin as the resin matrix and silane coupling agent as the cross-linking agent. The addition ratio of the silane coupling agent is 0.5%-2%, and the stirring is uniform. The coating amount is 20-25g / m 2 After coating, enter the drying oven at a temperature of 180-220℃ for 20-30 seconds. After drying, punch into a rectangular blank for standby. The punching size is 20mm larger than the maximum outer dimension of the mounting plate.

[0039] S3, glass fiber cloth pretreatment: acetic acid is added to 95% ethanol, the pH value of the solution is adjusted to 4.3-4.4 by adding acetic acid, 2%-5% titanate coupling agent is added, and the glass fiber cloth is placed in a 450℃ oven for 30min to remove paraffin wax on the surface of the glass fiber, and the dried glass fiber cloth is immersed in the ethanol solution containing the titanate coupling agent for 10-15min to enable the glass fiber to fully graft with the coupling agent, then it is taken out and baked in an oven at 60-70℃ for 10min until the surface is dry, and then heated to 120-140℃ for 2h;

[0040] S4, epoxy resin flame-retardant modification: epoxy resin and 2-butyl-2-ethyl-1,3-propanediol brominated epoxy resin flame retardant are mixed in a mass ratio of 6:4, and stirred uniformly at 70℃ for standby use;

[0041] S5, preparation of impregnation solution: 4,4-diaminodiphenyl methane and toluene are added to the modified epoxy resin obtained in step S4, and stirred uniformly at room temperature to obtain an impregnation solution, wherein the addition ratio of the modified epoxy resin, 4,4-diaminodiphenyl methane and toluene is 1.5:1:1;

[0042] S6, preparation of impregnated glass fiber cloth: the glass fiber cloth obtained in step S3 is placed in the impregnation solution obtained in step S5 for 5min, and then taken out and dried, and then the impregnated glass fiber cloth is cut according to the maximum outer shape size of the mounting plate and the size of 20mm;

[0043] S7, mounting plate laminated forming: 4-8 pieces of the impregnated glass fiber cloth in step S6 are stacked according to the design thickness of the mounting plate, and placed in the concave die of the mounting plate hot-pressing mold, and 1 piece of the metal foil cut in step S2 is placed on the uppermost layer, and the metal panel in step S1 is placed in the convex die of the hot-pressing mold, and the mold is closed, and the mounting plate blank is prepared under the molding process of temperature 260℃, pressure 80MPa and pressure retention 10-12min, and the blank is placed in the punching mold to cut off the edge, and then the nut 5 and the mounting pad 9 are riveted, and the grounding screw hole 7, the first fixing hole 8 and the second fixing hole are processed to obtain the mounting plate finished product, and the convex die is split type, the extension plates 11 on both sides are processed first, and then the structure layer 1 is processed, and when demolding, the convex die in the middle of the structure layer 1 is withdrawn first, and then the convex dies on both sides are withdrawn.

[0044] In order to further verify the performance of the mounting plate in the application, a common galvanized mounting plate is used as a reference, and the comparison results are shown in the following table.

[0045]

[0046] From the above table, it can be seen that the mounting plate in the application has the characteristics of light weight, not easy to deform, conductive and flame-retardant.

[0047] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be made without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A refrigerator compressor mounting plate characterized by: The utility model provides a kind of metal panel and structure layer, including structural layer (1), the surface of structural layer (1) is provided with two parallel ribs, the surface of structural layer (1) one side is provided with conductive layer (2), the rib is provided with an installation slot (3), the surface of installation slot (3) is provided with metal panel (4), the surface of metal panel (4) is provided with nut (5), on one of rib is provided with boss (6), the surface of boss (6) is provided with ground screw hole (7), structural layer (1) is close to four corner and is provided with one first fixed hole (8) each, the surface of metal panel (4) is further provided with backing plate (9), the both ends of structural layer (1) are fixedly connected with extension plate (10), the surface of extension plate (10) is provided with protrusion (11), the surface of protrusion (11) is provided with second fixed hole (12);The extension plate (10) and structural layer (1) are integrated structure, the material of structural layer (1) and extension plate (10) uses continuous fiber reinforced epoxy resin or polyurethane resin;Conductive layer (2) uses metal material or non-metal material, metal material selects one of aluminum foil, copper foil or stainless steel foil, non-metal material selects one of carbon cloth or graphene.

2. A refrigerator compressor mounting plate according to claim 1, characterized in that: When the conductive layer (2) uses metal material, the thickness of the conductive layer (2) is 0.01-0.1mm, when the conductive layer (2) uses non-metal material, the thickness of the conductive layer (2) is 0.1-0.2mm.

3. A refrigerator compressor mounting plate as defined in claim 1, characterized in that: The protrusion (11) is provided with a mounting bracket (13) in one side groove, and the mounting bracket (13) is fixed in the inner wall of the refrigerator body.

4. The refrigerator compressor mounting plate of claim 1, wherein: The metal panel (4) is made of galvanized steel sheet, and the metal panel (4) and the installation slot (3) are fixed by resin bonding, the backing plate (9) and the metal panel (4) are fixed by resin bonding, and the surface of the backing plate (9) is provided with a through hole matched with the nut (5).

5. The manufacturing process of a refrigerator compressor mounting plate according to claim 1, characterized in that: The utility model includes the following steps: S1, metal panel processing: punching the required blank from the galvanized steel sheet, placing the blank on the surface of the plane for surface spraying, and placing the sprayed blank in a temperature of 180-220 DEG C for 5-10 minutes and taking out for standby; S2, the treatment of the metal aluminum foil: the metal aluminum foil roll is unwound, the surface treatment agent is coated on the surface of the aluminum foil by roll coating or spraying, the coating amount is 20-25 g / m 2 After coating, it is baked in an oven at a temperature of 180-220 ℃ for 20-30 seconds, and then punched into a rectangular material for standby. S3, glass fiber cloth pretreatment: add acetic acid to 95% ethanol, adjust the pH value of the solution to 4.3-4.4 by adding acetic acid, add 2%-5% titanate coupling agent, stand for 30 min, put the glass fiber cloth into the oven at 450 DEG C and heat for 30 min, immerse the dried glass fiber cloth in the ethanol solution containing the titanate coupling agent for 10-15 min, then take out and bake in the oven at 60-70 DEG C for 10 min to dry the surface, and then heat to 120-140 DEG C for 2h; S4, epoxy resin flame-retardant modification: mix epoxy resin and 2-butyl-2-ethyl-1,3-propanediol brominated epoxy resin flame retardant according to the mass ratio of 6:4, fully stir and mix evenly at 70 DEG C, and standby; S5, preparation of impregnation solution: add 4,4-diamino diphenyl methane and toluene to the modified epoxy resin obtained in step S4, fully stir and mix evenly at room temperature to obtain the impregnation solution, and standby; S6, the preparation of the impregnated glass fiber cloth: the glass fiber cloth obtained in step S3 is placed in the impregnating solution obtained in step S5 for impregnation for 5 min, taken out and dried, and then cut into the impregnated glass fiber cloth; S7, laminating and forming the mounting plate: according to the design thickness of the mounting plate, 4-8 pieces of the impregnated glass fiber cloth in step S6 are stacked and placed in the concave die of the hot-pressing mold of the mounting plate, and one piece of the metal foil cut in step S2 is placed on the uppermost layer, and the metal panel in step S1 is placed in the convex die of the hot-pressing mold, the mold is closed, and the mounting plate blank is obtained under the molding process of temperature 260 ℃, pressure 80 MPa, and pressure holding time 10-12 min, the blank is placed in the punching die to cut off the edge, and then the nut is riveted, the gasket plate is installed, the grounding screw hole, the first fixing hole and the second fixing hole are processed, and the mounting plate product is obtained.

6. The manufacturing process of a refrigerator compressor mounting plate according to claim 5, characterized in that: In step S1, the surface spraying material is a mixture of polyamide and epoxy resin, and the ratio is 1:

1.

7. The manufacturing process of a refrigerator compressor mounting plate according to claim 5, characterized in that: In step S2, the surface treatment agent uses epoxy resin as the resin matrix and silane coupling agent as the crosslinking agent, and the addition ratio of the silane coupling agent is 0.5%-2%, and the mixture is stirred uniformly.

8. The manufacturing process of a refrigerator compressor mounting plate according to claim 5, characterized in that: In step S5, the addition ratio of the modified epoxy resin, 4,4-diaminodiphenyl methane and toluene is 1.5:1:1.

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