Waterproof heat-dissipation plastic shell

Abstract

According to the technical scheme, the waterproof heat dissipation plastic shell comprises a metal piece and a plastic piece, the metal piece is arranged on the side face of the plastic piece in a penetrating mode, the metal piece is an outer shell made of metal with good heat conduction performance, and the thickness of the inner side face of the metal piece is gradually increased from the middle to the side portion. The plastic part is fixed on the periphery of the metal part in an injection molding mode to form a complete shell. The radar shell has the advantages that heat dissipation is conducted through metal, it is guaranteed that the temperature of the shell is controlled to be about 90 degrees when the radar works, it is guaranteed that the radar can work continuously and effectively, the heat dissipation problem of the radar is solved, the middle of the inner side face of the metal piece is thinner than the side portion, so that a gap is formed between the radar and the metal piece, and heat dissipation is facilitated; and meanwhile, better heat dissipation is carried out through the thin middle part, so that the heat dissipation effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of millimeter-wave radar technology, specifically to a waterproof and heat-dissipating plastic housing. Background Technology

[0002] Millimeter-wave radar is a type of radar that operates in the millimeter-wave band. Millimeter waves typically refer to the 30–300 GHz frequency range (wavelength 1–10 mm). Since the wavelength of millimeter waves falls between microwaves and centimeter waves, millimeter-wave radar combines some advantages of both microwave and electro-optical radar.

[0003] When millimeter-wave radar is working, the chip temperature can reach as high as 130°C. The existing plastic casing cannot dissipate heat. When the chip temperature is too high, it triggers the high-temperature protection encapsulation and automatically stops working, causing the radar to be unable to work continuously. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a waterproof and heat-dissipating plastic shell.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A waterproof and heat-dissipating plastic shell includes a metal part and a plastic part. The metal part is disposed through the side of the plastic part. The metal part is a shell made of metal with good thermal conductivity. The thickness of the inner side of the metal part gradually increases from the middle to the side. The plastic part is fixed around the metal part by injection molding to form a complete shell.

[0007] Preferably, the outer surface of the metal part is wavy.

[0008] Preferably, the area of ​​the metal part accounts for 90% to 95% of the side surface of the plastic part.

[0009] Preferably, the metal part is a shell formed by die casting of silver, copper, or aluminum.

[0010] Preferably, the metal part has ventilation holes inside.

[0011] Preferably, the metal part protrudes from the side of the plastic part or is flush with the side of the plastic part.

[0012] Preferably, the plastic part is a shell formed by injection molding of polypropylene, polyethylene, polyvinyl chloride, or polystyrene.

[0013] Preferably, the plastic part and the metal part are sealed with adhesive.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model uses metal to dissipate heat, ensuring that the shell temperature is controlled at around 90°C during radar operation, thus ensuring that the radar can work continuously and effectively. This solves the radar heat dissipation problem. The gap between the radar and the metal part is created by making the middle part of the inner side thinner than the side part, which is conducive to heat dissipation. At the same time, the thinner middle part provides better heat dissipation, thus improving the heat dissipation effect.

[0016] 2. This utility model further reduces the thickness of the metal part by using the wavy recessed part on the outer side of the metal part, which is conducive to heat dissipation. The raised part abuts against other objects, avoiding contact between the thin part and other objects, thus improving the service life of the metal part.

[0017] 3. This utility model achieves waterproofing by using adhesive to seal the plastic pellets and metal parts. Attached Figure Description

[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

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

[0020] Figure 2 This is a schematic diagram of the structure of the metal part of this utility model.

[0021] The diagram is labeled as follows: 1. Metal parts; 2. Plastic parts; 3. Vent holes. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] like Figure 1 As shown, the waterproof and heat-dissipating plastic shell of this utility model includes a metal part 1 and a plastic part 2. The metal part 1 is located on the side of the plastic part 2 and penetrates the surface. The metal part 1 is a shell formed by die casting of silver, copper or aluminum. The plastic part 2 is a shell formed by injection molding of polypropylene, polyethylene, polyvinyl chloride or polystyrene.

[0024] After the metal part 1 is die-cast, the plastic part 2 is then injection-molded around the metal part 1 to form a complete shell. The metal part 1 dissipates heat, ensuring that the shell temperature is controlled at around 90°C during radar operation, thus ensuring that the radar can work continuously and effectively and solving the radar heat dissipation problem.

[0025] The thickness of the inner side of the metal part 1 gradually increases from the middle to the side. The fact that the middle of the inner side of the metal part 1 is thinner than the side creates a gap between the radar and the surface, which is conducive to heat dissipation. At the same time, the thinner middle part provides better heat dissipation, thus improving the heat dissipation effect. The outer side of the metal part 1 is set in a wave shape. The wave-shaped recessed part on the outer side of the metal part 1 further reduces the thickness of the metal part 1, which is also conducive to heat dissipation. The protruding part abuts against other objects, preventing the thin part from contacting other objects and improving the service life of the metal part 1.

[0026] The area of ​​metal part 1 occupies 90% to 95% of the side surface of plastic part 2. This large area occupied by metal part 1 ensures extensive heat dissipation from the interior of the casing, significantly improving heat dissipation efficiency. Figure 2 As shown, the metal part 1 has a vent 3 inside, which helps to dissipate heat and further improves the heat dissipation effect. The metal part 1 protrudes from the side of the plastic part 2 or is flush with the side of the plastic part 2. By ensuring that the metal part 1 does not recess into the plastic part 2, the internal space of the shell is sufficient and the space is used in a reasonable way. The connection between the metal part 1 and the plastic part 2 is filled with glue, and the glue is used to seal the metal part 1 and the plastic part 2, thereby achieving a waterproof effect.

[0027] In use, after the metal part 1 is die-cast, it is injection molded to form a plastic part 2 by wrapping plastic around the metal part 1. The metal part 1 and the plastic part 2 together form a shell, and heat is dissipated through the metal part 1. During the plastic wrapping process, glue is used to seal the metal part 1 and the plastic part 2 to achieve a waterproof effect.

[0028] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A waterproof and heat-dissipating plastic housing, characterized in that: It includes a metal part (1) and a plastic part (2). The metal part (1) is disposed through the side of the plastic part (2). The metal part (1) is a shell made of metal with good thermal conductivity. The thickness of the inner side of the metal part (1) gradually increases from the middle to the side. The plastic part (2) is fixed around the metal part (1) by injection molding to form a complete shell.

2. The waterproof and heat-dissipating plastic housing according to claim 1, characterized in that: The outer surface of the metal part (1) is wavy.

3. The waterproof and heat-dissipating plastic housing according to claim 2, characterized in that: The area of ​​the metal part (1) accounts for 90% to 95% of the side surface of the plastic part (2).

4. The waterproof and heat-dissipating plastic housing according to claim 3, characterized in that: The metal part (1) is a shell formed by die casting of silver, copper or aluminum.

5. A waterproof and heat-dissipating plastic housing according to claim 4, characterized in that: The metal part (1) has ventilation holes (3) inside.

6. A waterproof and heat-dissipating plastic housing according to claim 5, characterized in that: The metal part (1) protrudes from a portion of the side of the plastic part (2) or is flush with the side of the plastic part (2).

7. A waterproof and heat-dissipating plastic housing according to claim 1, characterized in that: The plastic part (2) is a shell formed by injection molding of polypropylene, polyethylene, polyvinyl chloride or polystyrene.

8. A waterproof and heat-dissipating plastic housing according to claim 7, characterized in that: The plastic part (2) and the metal part (1) are sealed together by adhesive.

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