A sealed high-frequency head cover

Abstract

The present invention relates to a sealed high-frequency head cover, which has a shell that tightly fits the high-frequency head; it also has a sealing ring that is tightly buckled with the shell, the shell has a plurality of first card slots, a second card slot, and a third card slot that are evenly distributed around the circumference, and the sealing ring has a first card strip that is buckled with the plurality of first card slots, a second card strip that is buckled with the plurality of second card slots, and a third card strip that is buckled with the plurality of third card slots. The sealed high-frequency head cover of the present invention uses double-shot injection molding technology, so that the original two components, the shell and the sealing ring, can be buckled through the plurality of card slots and card strips, and the connection is compact, without burrs and sharp edges, so that the two are combined to form a whole, and the sealing effect is good. After the present invention is provided to customers, customers can quickly screw the high-frequency head cover to the high-frequency head without other installation procedures, which is convenient and quick, and worthy of vigorous promotion.

Description

Technical Field

[0001] The invention relates to the technical field of communication technology components, and in particular to a sealed high-frequency head cover. Background Art

[0002] The general satellite TV receiving system mainly includes: antenna, feed source, low-noise down-converter, also known as high-frequency head (a component integrated with a low-noise amplifier and a down-converter). When in use, the high-frequency head cover on the outside plays the role of assembly fixation, waterproofing and protection. The high-frequency head cover on the market is currently used with sealing rings. Before use, it is necessary to purchase a large number of sealing rings and assemble them inside the high-frequency head cover, and then press the high-frequency head cover onto the high-frequency head. The entire installation process requires customers to complete the operation on site, which is inconvenient for users to use, and the sealing effect cannot be guaranteed; at the same time, in order to ensure the waterproof effect, the gaps on the surface of the high-frequency head itself need to be waterproofed with glue, which makes the installation process complicated and increases the cost of manpower hours. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a sealed high-frequency head cover.

[0004] The technical solution for achieving the purpose of the present invention is: a sealed high-frequency head cover, having a shell that tightly fits the high-frequency head; and also having a sealing ring that is buckled with the shell, the shell having a plurality of first card slots, a second card slot, and a third card slot evenly distributed around the circumference, and the sealing ring having a first card strip that is buckled with the plurality of the first card slots, a second card strip that is buckled with the plurality of the second card slots, and a third card strip that is buckled with the plurality of the third card slots.

[0005] In the above technical solution, the first card slot and the second card slot are arranged at intervals around the circumference.

[0006] The third card slot in the above technical solution is connected to the second card slot, and the third card strip is connected to the second card strip.

[0007] In the above technical solution, the third card slot is vertically connected to the middle card slot section of the second card slot, and the third card strip is vertically connected to the middle card strip section of the second card strip.

[0008] In the above technical solution, the distance between the first card slot and the inner wall of the shell is greater than the distance between the second card slot and the inner wall of the shell.

[0009] In the above technical solution, the distance between the first card slot and the opening end of the shell is greater than the distance between the second card slot and the opening end of the shell.

[0010] In the above technical solution, the first card slot is arranged to face the opening end of the shell and away from the inner wall of the shell; the second card slot is arranged to face the opening end of the shell.

[0011] In the above technical solution, the inner wall of the first slot facing away from the shell has a reduction groove, and a partition is provided above the reduction groove.

[0012] The shell of the above technical solution is made of the following components in mass percentage: PP 99.4%, UV-326 0.3%, UV-944 0.3%; the material of the sealing ring is TPU.

[0013] The shell described in the above technical solution is provided with a plurality of rotating threads evenly distributed around the circumference.

[0014] After adopting the above technical solution, the present invention has the following positive effects:

[0015] (1) The sealed high-frequency head cover of the present invention uses double-shot injection molding technology, so that the original two components, the shell and the sealing ring, can be buckled through multiple card slots and card strips, and the connection is compact, without burrs and sharp edges, so that the two are combined to form a whole, and the sealing effect is good. After the present invention is provided to customers, customers can quickly screw the high-frequency head cover to the high-frequency head without other installation procedures, which is convenient and fast, and worthy of vigorous promotion.

[0016] (2) The first card slot of the present invention is provided with a reduction groove, and a partition is provided above the reduction groove. The first card slot and the second card slot are separated by micro gaps in multiple directions such as up, down, left, right, front and back, so that the sealing ring is tightly enough with the first card slot and the second card slot after being buckled, and will not loosen even if it is shaken in multiple directions such as toward the inner wall of the shell and the opening.

[0017] (3) The product of the present invention passed the drop impact test, water leakage test, ultraviolet test, temperature cycle test and service life test when used in conjunction with a high-frequency head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 for Figure 1 A top view of

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the housing of the present invention;

[0022] Figure 4 for Figure 3 A top view of

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the sealing ring of the present invention.

[0024] In the figure: housing 1, sealing ring 2, first clamping groove 11, second clamping groove 12, third clamping groove 13, first clamping strip 21, second clamping strip 22, third clamping strip 23, reduction groove 111, partition 14, rotating thread 4. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] (Example 1)

[0027] See Figures 1 to 5 The present invention provides a sealed high-frequency head cover, which has a shell 1 that fits tightly with the high-frequency head; it also has a sealing ring 2 that is buckled with the shell 1, and the shell 1 has a plurality of first card slots 11, a second card slot 12, and a third card slot 13 that are evenly distributed around the circumference, and the sealing ring 2 has a first card strip 21 that is buckled with the plurality of first card slots 11, a second card strip 22 that is buckled with the plurality of second card slots 12, and a third card strip 23 that is buckled with the plurality of third card slots 13. The shell 1 is provided with a plurality of rotating threads 4 that are evenly distributed around the circumference for screwing the present invention to the high-frequency head, and the rotating threads 4 can be but are not limited to Figures 1 to 4 The 4 in the above table can also be adjusted according to actual needs, and no restrictions are imposed here.

[0028] This technical solution is the core technical solution of the present invention. The housing 1 is provided with a plurality of first card slots 11, a plurality of second card slots 12, and a plurality of third card slots 13 on its inner wall, and the sealing ring 2 is provided with a plurality of first card strips 21, a plurality of second card strips 22, and a plurality of third card strips 23 corresponding to the plurality of first card slots 11, a plurality of second card slots 12, and a plurality of third card slots 13. Through the three-layer buckle, the sealing ring has sufficient sealing, firmness, and stability after leaving the factory. After the customer gets the product, he only needs to screw the product of the present invention to the high-frequency head before use.

[0029] In this embodiment, the first card slot 11 and the second card slot 12 are arranged at intervals around the circumference. The first card slot 11 and the second card slot 12 are arranged at intervals, and the first card slot 11 and the second card slot 12 each have 4. It can be understood that the first card slot 11 and the second card slot 12 can also be other numbers formed around the inner wall of the shell 1. The advantage of the interval arrangement is that if the first card strip 21 in the first card slot 11 and the second card strip 22 in the second card slot 12 want to be removed, it is necessary to apply force to the opening end of the shell 1 and the inner wall facing away from the shell 1 at the same time. In actual use, this situation is unlikely to occur in the high-frequency head cover, so the connection between the shell 1 and the sealing ring 2 will be very stable.

[0030] In this embodiment, the distance between the first card slot 11 and the inner wall of the housing 1 is greater than the distance between the second card slot 12 and the inner wall of the housing 1. Figure 4 As shown, from a top view, the cross-sections of the first card slot 11 and the second card slot 12 are both arc-shaped, and the radius of the arc of the first card slot 11 is smaller than the radius of the arc of the second card slot 12 .

[0031] In this embodiment, the distance between the first card slot 11 and the opening end of the housing 1 is greater than the distance between the second card slot 12 and the opening end of the housing 1. Figure 3 As shown, from a three-dimensional perspective, the horizontal height of the first card slot 11 is smaller than the horizontal height of the second card slot 12 .

[0032] In this embodiment, the first card slot 11 is disposed facing the opening end of the housing 1 and facing away from the inner wall of the housing 1 ; the second card slot 12 is disposed facing the opening end of the housing 1 .

[0033] In summary, in this embodiment, after the first clip 21 and the second clip 22 are respectively engaged with the first slot 11 and the second slot 12, if the sealing strip 2 wants to slide out or move out of the shell 1, the first clip 21 and the second clip 22 must be moved out at the same time. The first clip 21 corresponds to the first slot 11. If the first clip 21 wants to slide out or move out of the first slot 11, it must face the opening end of the shell 1 or face away from the inner wall of the shell 1 to be applied force; the second clip 2 corresponds to the second slot 12. If the second clip 2 wants to slide out or move out of the second slot 12, it must face the opening end of the shell 1 to be applied force. That is, if the sealing strip 2 wants to slide out or move out of the shell 1, the following conditions must be met at the same time: the first clip 21 in the first slot 11 is applied force toward the opening end of the shell 1 or faces away from the inner wall of the shell 1; the second clip 22 in the second slot 12 is applied force toward the opening end of the shell 1. In actual use, this situation is unlikely to occur in the high-frequency head cover, so the connection between the shell 1 and the sealing ring 2 will be very stable and have good sealing performance.

[0034] As a supplement to this embodiment, the first card slot 11 and the second card slot 12 are arranged at intervals around the circumference. The cooperation of a single first card slot 11 and a single second card slot 12 can effectively prevent the sealing ring 2 from slipping out or moving out. Figure 3 , Figure 4 The number is shown as 4, but it is understandable that the number is not limited to 4 and may be other variables. The advantage of arranging the plurality of first card slots 11 and the plurality of second card slots 12 at intervals is that the first card slots 11 can increase the fit between the sealing ring 2 and the inner wall of the housing 1, making the sealing ring 2 and the housing 1 smoother and making it easier to handle burrs and sharp edges later.

[0035] In this embodiment, the shell 1 is made of the following components in mass percentage: PP 99.4%, UV-3260.3%, UV-944 0.3%; the sealing ring 2 is made of TPU. All burrs and sharp edges of 0.13 to 0.25 mm are removed from the shell 1 and the sealing ring 2. The shell 1 is made of polypropylene with light stabilizer (UV-944) and ultraviolet light absorber (UV-944) added, and has high rigidity, high hardness and high strength, and is drop-resistant and corrosion-resistant. The sealing ring 2 is a thermoplastic polyurethane elastomer rubber, which has the characteristics of high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, aging resistance, and weather resistance, and has the functions of high waterproofness, moisture permeability, windproof, cold protection, antibacterial, mildew resistance, warmth retention, and UV resistance.

[0036] (Example 2)

[0037] The difference between this embodiment and the first embodiment is that the third card slot 13 is connected to the second card slot 12, and the third card strip 23 is connected to the second card strip 22. Figure 3 , Figure 4 As shown, the size of the third card slot 13 is smaller than that of the second card slot 12. During installation, the second card strip 22 must be buckled into the second card slot 12 before the third card strip 23 is inserted into the third card slot 13. That is, the third card slot 13 and the second card slot 12 cooperate with each other. If the second card strip 22 wants to slide out or move out toward the opening end of the shell 1, the third card strip 23 in the smaller third card slot 13 must first slide out or move out toward the opening end of the shell 1, and then the second card strip 22 must slide out or move out toward the opening end of the shell 1. The second card slot 12 is arranged around the circumference of the first card slot 11, that is, if the sealing ring 2 wants to slide out or move out of the shell 1, it must pass through the third card slot 13, the second card slot 12, and the first card slot 11 in sequence. In actual use, this situation is unlikely to occur in a high-frequency head cover, so after multiple performance tests, it is shown that the connection between the shell 1 and the sealing ring 2 is very stable.

[0038] Preferably, the third card slot 13 is vertically connected to the middle card slot section of the second card slot 12, and the third card strip 23 is vertically connected to the middle card strip section of the second card strip 22. This facilitates the processing and installation of the third card slot and the third card strip 23. The side of the third card strip 23 facing the inner wall of the housing 1 gradually increases from bottom to top until it has an interference fit with the third card slot 13, which facilitates the simple insertion of the third card strip 23 into the third card slot 13 and has sufficient sealing performance.

[0039] (Example 3)

[0040] The difference between this embodiment and the second embodiment is that the inner wall of the first card slot 11 facing away from the shell 1 has a reduction groove 111, and a partition 14 is provided above the reduction groove 111. If the first card strip 21 wants to slide out or move out of the first card slot 11, it must face the opening end of the shell 1 or be subjected to force against the inner wall of the shell 1. After the reduction groove 111 cooperates with the corresponding first card strip 21, if the first card strip 21 wants to slide out or move out of the first card slot 11, it must be subjected to force against the inner wall of the shell 1. Force facing the opening end of the shell 1 will not be able to slide or move the first card strip 21 out of the first card slot 11. The design of the reduction groove 111 further enhances the buckling stability of the sealing ring 2 and the shell 1.

[0041] The product performance test of the present invention is as follows:

[0042] (1) Drop shock test

[0043] Install this product on the high-frequency head, and drop it from 18 inches and 36 inches from different angles to a wooden board or a concrete floor covered with a thin carpet five times in a laboratory environment with a temperature of 21-22°C and a relative humidity of 64-65%. After the drop impact test, the product appearance was observed to be normal. Then, after the product was subjected to a water leakage test (temperature: 62.5°C ± 2.5°C), no damage was found.

[0044] (2) Water leakage test

[0045] Install this product on the high-frequency head, put it into 27℃ water in a laboratory environment with a temperature of 21-22℃ and a relative humidity of 64-65%, and immerse it in a depth of 1 meter for 2 hours. After measurement, no water leakage is found.

[0046] In a laboratory environment with a temperature of 21-22°C and a relative humidity of 64-68%, place the product in 62.5°C±2.5°C water and soak it for 75 seconds until it is completely immersed in the water. After measurement, no water leakage is found.

[0047] (3) UV test

[0048] In a laboratory environment with a temperature of 21-22°C and a relative humidity of 40-48%, the American material test standard G154-06 was carried out, and the ultraviolet light used was a UVA 340 lamp with an irradiance of 0.89W / m 2 , keep the UV light at 60℃ for 8 hours, cool to 50℃ and keep it for 4 hours, the test cycle is 500 hours. After the experiment, the appearance is normal.

[0049] (4) Temperature cycle test

[0050] In a laboratory environment with a temperature of 21-22°C and a relative humidity of 40-48%, this product was installed on the high-frequency head and the ESS-TC experiment was carried out. The temperature was lowered from room temperature to -22°C and kept for 10 minutes, and then raised to 80°C and kept for 10 minutes. This was a cycle and the cycle was repeated 20 times. After the experiment, the product was not unhooked and its appearance was normal.

[0051] (5) Service life test

[0052] In a laboratory environment with a temperature of 21-22°C and a relative humidity of 40-48%, this product was installed on the high-frequency head, with 15 samples, a test temperature of 75°C, a test time of 375.1 hours (15.6 days), and a mean time between failures of >75 years (657,000 hours). After the experiment, this product was not disconnected and its appearance was normal.

[0053] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealed high-frequency head cover, comprising a housing (1) that closely fits the high-frequency head; characterized in that: It also comprises a sealing ring (2) buckled with the housing (1); the housing (1) comprises a plurality of first card slots (11), a second card slot (12), and a third card slot (13) uniformly distributed around a circumference; the sealing ring (2) comprises a first card strip (21) buckled with the plurality of the first card slots (11), a second card strip (22) buckled with the plurality of the second card slots (12), and a third card strip (23) buckled with the plurality of the third card slots (13); The first card slot (11) and the second card slot (12) are arranged at intervals around the circumference; The third card slot (13) is connected to the second card slot (12), and the third card strip (23) is connected to the second card strip (22); The third card slot (13) is vertically connected to the middle card slot section of the second card slot (12), and the third card strip (23) is vertically connected to the middle card strip section of the second card strip (22).

2. A sealed high-frequency head cover according to claim 1, characterized in that: The distance between the first card slot (11) and the inner wall of the shell (1) is greater than the distance between the second card slot (12) and the inner wall of the shell (1).

3. A sealed high-frequency head cover according to claim 2, characterized in that: The distance between the first card slot (11) and the opening end of the shell (1) is greater than the distance between the second card slot (12) and the opening end of the shell (1).

4. A sealed high-frequency head cover according to claim 1, characterized in that: The first card slot (11) is arranged facing the opening end of the shell (1) and facing away from the inner wall of the shell (1); the second card slot (12) is arranged facing the opening end of the shell (1).

5. The sealed high-frequency head cover according to claim 1, characterized in that: The inner wall of the first card slot (11) facing away from the shell (1) has a reduction groove (111), and a partition plate (14) is provided above the reduction groove (111).

6. A sealed high-frequency head cover according to claim 1, characterized in that: The shell (1) is made of the following components in percentage by mass: PP 99.4%, UV-326 0.3%, UV-944 0.3%; the sealing ring (2) is made of TPU.

7. The sealed high-frequency head cover according to claim 1, characterized in that: The housing (1) is provided with a plurality of rotating threads (4) evenly distributed around the circumference.

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