Dielectric cover of multi-beam receiving lens antenna and processing method

Abstract

The invention relates to the technical field of lens antennas, and particularly discloses a dielectric cover of a multi-beam receiving lens antenna and a processing method, the dielectric cover comprises a spherical crown-shaped body and a waterproof material which coats the inner side and the outer side of the body and forms a waterproof layer, the waterproof material has a microwave signal wave transmission function, and the wave transmission rate is not lower than 0.9; the waterproof material comprises an epoxy resin adhesive, a curing agent and a diluent; the weight ratio of the epoxy resin adhesive to the curing agent to the diluent is (100: 10)-(13: 15). According to the multi-beam receiving lens antenna and the processing method of the multi-beam receiving lens antenna, the totally-closed waterproof thin film is strongly attached to the surface of the dielectric cover, on the basis that the adhesive force of the adhesive layer is ensured, the closed waterproof requirement is met, and the abrasion resistance of the dielectric cover is protected; and the wave-transparent and electrical performance requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of lens antennas, and more specifically, to a dielectric cover and a processing method of a multi-beam receiving lens antenna. Background Art

[0002] The receiving lens antenna includes a bracket, a dielectric cover mounted on the bracket, a dielectric lens, a beam spherical array mounted in the bracket, and a large spherical crown mounted on the bracket and located on the side of the beam spherical array away from the dielectric cover;

[0003] The dielectric cover is usually made of polystyrene hard foam with excellent wave transmission performance to make it have good waterproof ability; however, during the manufacturing process of the dielectric cover, it is processed into a convex lens shape by a numerically controlled machine tool, and the processing and cutting are likely to cause local foam particles to fall off, resulting in rainwater seeping into the antenna through the gaps of the fallen foam particles during the use of the antenna, causing water ingress.

[0004] To solve the above problems, in the prior art, it is achieved by improving the dielectric cover material design, improving the lens antenna assembly, etc. However, due to the requirements for the wave transmission rate of the microwave signal of the dielectric cover, currently the optimal choice cannot be made, and the dielectric cover material cannot be replaced; the strength of the machined polystyrene hard foam material is insufficient and it cannot ensure that all areas are flat without pits, so it cannot meet the requirements; for the conventional glue coating waterproof process, after the dielectric cover is coated with glue and then painted, the adhesion of the paint layer is poor, affecting the use of the equipment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a dielectric cover and a processing method of a multi-beam receiving lens antenna. By using the present invention, a fully enclosed waterproof film is strongly attached to the surface of the dielectric cover, and on the basis of ensuring the adhesion of the glue layer, the requirements of airtight waterproofing are met and the wear resistance of the dielectric cover is protected;

[0006] The solution adopted by the present invention to solve the technical problem is:

[0007] A dielectric cover of a multi-beam receiving lens antenna includes a spherical crown-shaped body and a waterproof material coated on both the inner and outer sides of the body to form a waterproof layer; the waterproof material has a microwave signal wave transmission function and the wave transmission rate is not less than 0.9;

[0008] The waterproof material includes an epoxy resin adhesive, a curing agent, and a diluent; the weight ratio of the epoxy resin adhesive, the curing agent, and the diluent is 100:10 - 13:15.

[0009] In some possible implementation manners, the thickness of the waterproof layer is 0.1 - 0.15 mm.

[0010] In some possible implementations, the epoxy resin adhesive is E-51 bisphenol epoxy resin; the curing agent is triethylenetetramine; and the diluent is 501# diluent.

[0011] In some possible implementations, the viscosity of the E-51 bisphenol epoxy resin at 25°C or below is 10,000 to 16,000 centipoise; the shear strength of triethylenetetramine at 25°C for 3 days is 81 kg / cm 2 The shear strength of triethylenetetramine is 118 kg / cm at 25°C after 15 days. 2 The shear strength of triethylenetetramine is 222 kg / cm at 95°C for 30 minutes. 2 .

[0012] A method for processing a multi-beam receiving lens antenna comprises the following steps:

[0013] Step S1: body processing and waterproof material preparation;

[0014] Step S2: coating a waterproof material on the inner side of the body to form a waterproof layer;

[0015] Step S3: assembling the multi-beam receiving lens antenna by bonding, and spraying the body with a waterproof layer on the inner side with a wave-transmitting paint;

[0016] Step S4: Coat the outer side of the main body with waterproof material to form a waterproof layer to complete the processing.

[0017] In some possible implementations, step S2 specifically includes the following steps:

[0018] Step S21: mixing the epoxy resin adhesive and the curing agent in a weight ratio of 100:10-13 to obtain a mixture A;

[0019] Step S22: adding a diluent to the mixture A, the diluent is prepared according to a weight ratio of epoxy resin adhesive to diluent of 100:15, and stirring evenly to obtain a waterproof material;

[0020] Step S23: evenly apply the waterproof material to the inner side of the body;

[0021] Step S24: clean up the remaining glue and cure for 24 hours.

[0022] In some possible implementations, step S3 specifically includes the following steps:

[0023] Step S31: Install the sealing ring 1 and the large ball crown on the bracket in sequence; and fasten the bracket and the large ball crown;

[0024] Step S32: bonding the backing plate to the bracket;

[0025] Step S3: applying glue to the bonding area;

[0026] Step S34: sequentially install the dielectric lens, the body with a waterproof layer on the inner side, the second sealing ring, and the sealing ring, and apply glue at the joint between the sealing ring and the body after tightening;

[0027] Step S35: clean up the remaining glue and cure for 24 hours;

[0028] Step S36: spray the outer side of the body with wave-transmitting paint and leave it for 24 hours.

[0029] In some possible implementations, the step S32 specifically refers to using a GD-401 single-component room temperature vulcanized silicone rubber bonding pad to bond to the bracket.

[0030] In some possible implementations, step S4 specifically includes the following steps:

[0031] Step S41: mixing epoxy resin adhesive and curing agent in a weight ratio of 100:10-13 to obtain a mixture A;

[0032] Step S42: adding a diluent to the mixture A, the diluent is prepared in a weight ratio of epoxy resin adhesive to diluent of 100:15, and stirring evenly to obtain a waterproof material;

[0033] Step S43: evenly apply the waterproof material to the outer side of the body;

[0034] Step S44: clean up the remaining glue and cure for 24 hours;

[0035] Step S45: coating the outer side of the body with waterproof material again so that the overall thickness of the two waterproof layers is 0.2 mm to 0.3 mm;

[0036] Step S46: clean up the remaining glue and cure again for 24 hours; complete the processing.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The present invention selects waterproof materials that meet the wave transmittance requirements and evenly applies them to the surface of the dielectric cover to form a fully enclosed waterproof film that is strongly attached to the surface of the dielectric cover. On the basis of ensuring the adhesion of the adhesive layer, the airtight waterproof requirements are achieved and the wear resistance of the dielectric cover is protected; the wave transmittance and electrical performance requirements are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of the present invention;

[0040] Among them: 1. bracket; 2. main body; 3. pad; 4. beam spherical array; 5. large spherical crown. Detailed implementation mode

[0041] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. The "first", "second" and similar words mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not indicate a quantity limitation, but indicate that there is at least one. In the implementation of this application, "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of this application, unless otherwise stated, the meaning of "a plurality" refers to two or more. For example, a plurality of positioning posts means two or more positioning posts. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] The present invention will be described in detail below.

[0043] As Figure 1 shown:

[0044] A dielectric cover of a multi-beam receiving lens antenna includes a spherical crown-shaped body 2 and a waterproof material coated on both the inner and outer sides of the body 2 to form a waterproof layer; since the waterproof material will be applied to the dielectric cover of the receiving antenna, when selecting, the microwave signal transmission rate of the waterproof material is not less than 0.9, it has strong adhesion, has good environmental adaptability, and needs to have good adhesion on the painted surface to meet the waterproof requirements.

[0045] Specifically, one side of the inner side of the body 2 has a groove.

[0046] The waterproof material includes an epoxy resin adhesive, a curing agent and a diluent; the weight ratio of the epoxy resin adhesive, the curing agent and the diluent is 100:10-13:15.

[0047] In some possible implementation modes, the thickness of the waterproof layer is 0.1-0.15 mm.

[0048] In some possible implementation modes, the epoxy resin adhesive is E-51 bisphenol epoxy resin; the curing agent is triethylenetetramine; the diluent is 501# diluent.

[0049] In some possible embodiments, the viscosity of the E-51 bisphenol epoxy resin is 10,000 to 16,000 centipoises at temperatures below 25°C; the shear strength of triethylenetetramine is 81 kg / cm² after 3 days at 25°C 2 ; the shear strength of triethylenetetramine is 118 kg / cm² after 15 days at 25°C 2 , and the shear strength of triethylenetetramine is 22 kg / cm² after 30 minutes at 95°C 2 .

[0050] The present invention selects a waterproof material that meets the wave transmission rate requirements and evenly coats the inner and outer surfaces of the dielectric cover to form a fully enclosed waterproof film that strongly adheres to the dielectric cover. On the basis of ensuring the adhesion of the waterproof layer, the requirements for airtight waterproofing are achieved and the wear resistance of the dielectric cover is protected.

[0051] A processing method for a multi-beam receiving lens antenna specifically includes the following steps:

[0052] Step S1: Processing of the body 2 and preparation of the waterproof material;

[0053] Step S2: Coating the inner side of the body 2 with the waterproof material to form a waterproof layer; the step S2 specifically includes the following steps:

[0054] Step S21: Mixing the epoxy resin adhesive and the curing agent in a weight ratio of 100:10 to 13 to obtain the mixture A;

[0055] Step S22: Adding a diluent to the mixture A, and preparing the diluent according to a weight ratio of 100:15 of the epoxy resin adhesive to the diluent, and stirring evenly to obtain the waterproof material;

[0056] Step S23: Evenly coating the waterproof material on the inner side surface of the body 2;

[0057] Step S24: Cleaning the excess glue and curing for 24 hours.

[0058] Step S3: Bonding and assembling the multi-beam receiving lens antenna and spraying a wave-transparent paint on the body 2 with a waterproof layer on the inner side; the step S3 specifically includes the following steps:

[0059] Step S31: Sequentially installing a first sealing ring and a large spherical crown 5 on the bracket 11; and fastening the bracket 11 and the large spherical crown 5;

[0060] Step S32: Bonding the backing plate 3 to the bracket 11; specifically, using GD-401 one-component room temperature vulcanizing silicone rubber to bond the backing plate 3 to the bracket 11;

[0061] Step S33: Applying glue to the bonding area;

[0062] Step S34: sequentially install the dielectric lens, the body 2 with a waterproof layer on the inner side, the sealing ring 2, and the sealing ring, and apply glue at the joint between the sealing ring and the body 2 after tightening;

[0063] Step S35: clean up the remaining glue and cure for 24 hours;

[0064] Step S36: spray the outer side of the body 2 with wave-transmitting paint and leave it for 24 hours.

[0065] Step S4: coating the outer side of the body 2 with a waterproof material to form a waterproof layer, completing the processing;

[0066] The step S4 specifically comprises the following steps:

[0067] Step S41: mixing epoxy resin adhesive and curing agent in a weight ratio of 100:10-13 to obtain a mixture A;

[0068] Step S42: adding a diluent to the mixture A, the diluent is prepared in a weight ratio of epoxy resin adhesive to diluent of 100:15, and stirring evenly to obtain a waterproof material;

[0069] Step S43: evenly apply the waterproof material to the outer side of the body 2;

[0070] Step S44: clean up the remaining glue and cure for 24 hours;

[0071] Step S45: coating the outer side of the body 2 with waterproof material again, so that the overall thickness of the two waterproof layers is 0.2 mm to 0.3 mm;

[0072] Step S46: clean up the remaining glue and cure again for 24 hours; complete the processing.

[0073] The performance of the processed multi-beam receiving lens antenna was tested: the multi-beam receiving lens antenna was subjected to a rain test along with the system: the rain angle was 45° (four sides and top), the rain intensity was 5mm / min, and the rain time was 1 hour; after the rain test, the lens antenna was found to be free of water and the electrical performance met the requirements.

[0074] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A dielectric cover of a multi-beam receiving lens antenna, characterized in that, It includes a spherical crown-shaped body, and a waterproof material coated on both sides of the body to form a waterproof layer, wherein the waterproof material has a microwave signal transmission function and a wave transmission rate of not less than 0.9; The waterproof material comprises epoxy resin adhesive, curing agent and diluent; the weight ratio of the epoxy resin adhesive, curing agent and diluent is 100:10-13:

15.

2. The dielectric cover of a multi-beam receiving lens antenna according to claim 1, characterized in that, The thickness of the waterproof layer is 0.1-0.15 mm.

3. The dielectric cover of a multi-beam receiving lens antenna according to claim 1, characterized in that, The epoxy resin adhesive is E-51 bisphenol epoxy resin; the curing agent is triethylenetetramine; and the diluent is 501# diluent.

4. The dielectric cover of a multi-beam receiving lens antenna according to claim 3, characterized in that, The viscosity of the E-51 bisphenol epoxy resin is 10,000 to 16,000 centipoises below 25°C; the shear strength of triethylenetetramine at 25°C is 81 kg / cm² after 3 days; the shear strength of triethylenetetramine at 25°C is 118 kg / cm 2 , and the shear strength of triethylenetetramine at 95°C is 222 kg / cm after 30 minutes 2 .

5. A processing method for a multi-beam receiving lens, based on the dielectric cover according to any one of claims 1-4, characterized in that, The specific steps include: Step S1: body processing and waterproof material preparation; Step S2: coating a waterproof material on the inner side of the body to form a waterproof layer; Step S3: assembling the multi-beam receiving lens antenna by bonding, and spraying the body with a waterproof layer on the inner side with a wave-transmitting paint; Step S4: Coat the outer side of the main body with waterproof material to form a waterproof layer to complete the processing.

6. The processing method of a multi-beam receiving lens antenna according to claim 5, characterized in that, The step S2 specifically includes the following steps: Step S21: mixing the epoxy resin adhesive and the curing agent in a weight ratio of 100:10-13 to obtain a mixture A; Step S22: adding a diluent to the mixture A, the diluent is prepared according to a weight ratio of epoxy resin adhesive to diluent of 100:15, and stirring evenly to obtain a waterproof material; Step S23: evenly apply the waterproof material to the inner side of the body; Step S24: clean up the remaining glue and cure for 24 hours.

7. The processing method of a multi-beam receiving lens antenna according to claim 5, characterized in that, The step S3 specifically comprises the following steps: Step S31: Install the sealing ring 1 and the large ball crown on the bracket in sequence; and fasten the bracket and the large ball crown; Step S32: bonding the backing plate to the bracket; Step S3: applying glue to the bonding area; Step S34: sequentially install the dielectric lens, the body with a waterproof layer on the inner side, the second sealing ring, and the sealing ring, and apply glue at the joint between the sealing ring and the body after tightening; Step S35: clean up the remaining glue and cure for 24 hours; Step S36: spray the outer side of the body with wave-transmitting paint and leave it for 24 hours.

8. The processing method of a multi-beam receiving lens antenna according to claim 7, characterized in that The step S32 specifically refers to using GD-401 single-component room temperature vulcanized silicone rubber bonding pad to bond to the bracket.

9. The processing method of a multi-beam receiving lens antenna according to claim 5, characterized in that, The step S4 specifically comprises the following steps: Step S41: mixing epoxy resin adhesive and curing agent in a weight ratio of 100:10-13 to obtain a mixture A; Step S42: adding a diluent to the mixture A, the diluent is prepared in a weight ratio of epoxy resin adhesive to diluent of 100:15, and stirring evenly to obtain a waterproof material; Step S43: evenly apply the waterproof material to the outer side of the body; Step S44: clean up the remaining glue and cure for 24 hours; Step S45: coating the outer side of the body with waterproof material again so that the overall thickness of the two waterproof layers is 0.2 mm to 0.3 mm; Step S46: clean up the remaining glue and cure again for 24 hours; complete the processing.

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