Filter with heat dissipation tuning screws

Abstract

The utility model discloses a filter with a heat dissipation tuning screw, a threaded part of the tuning screw is arranged in a threaded hole, a flat outer edge head is arranged above the threaded part, and the outer edge head is always located on the upper surface of a cavity cover plate. A tuning column is arranged below the threaded part and is positioned in the resonant cavity body; according to the filter with the heat dissipation tuning screw, the flat outer edge head is arranged, so that the contact area between the outer edge head and the external space is increased, the heat dissipation efficiency is improved, and meanwhile, the flat outer edge head is more convenient for fingers to apply force, so that the tuning operation can be directly carried out by hands without a tool, the operation process is simplified, and the working efficiency is improved. The method is suitable for various working environments and application scenes, and the adjusting efficiency and flexibility are improved.

Description

Technical Field

[0001] The utility model relates to the field of microwave communication, in particular to a filter with heat dissipation tuning screws. Background Art

[0002] In the field of modern communication and electronic technology, cavity filters, as an important frequency selective device, are widely used in various electronic devices and systems. However, traditional cavity filters have some shortcomings in practical applications.

[0003] In terms of heat dissipation, since the filter will generate a certain amount of heat during operation, if the heat cannot be dissipated in a timely and effective manner, it may affect its performance and reliability, and even cause failure.

[0004] At the same time, in the tuning operation, some existing tuning screws often need to be adjusted with the help of specific tools, the operation is cumbersome and not convenient enough, which is inefficient in some scenarios that require fast and flexible adjustment.

[0005] In order to solve these problems, it is particularly important to develop a filter with a heat dissipation function and a heat dissipation tuning screw that can be directly adjusted by hand. This tuning screw combines heat dissipation performance with convenient manual adjustment function, aiming to improve the overall performance and ease of use of the cavity filter, meet the increasingly diverse and complex application requirements, and adapt to the continuous development trend of modern electronic technology. It will bring more efficient and stable performance to the communications, electronics and other industries. Utility Model Content

[0006] The main purpose of the utility model is to provide a filter with heat dissipation tuning screws, which can effectively solve the problems in the background technology.

[0007] The utility model is realized by the following technical solutions:

[0008] A filter with a heat dissipation tuning screw comprises a filter housing, the upper surface of which is provided with a cavity cover plate, the cavity cover plate is provided with a threaded hole matched with a threaded portion of the tuning screw; a resonant cavity is provided inside the filter housing.

[0009] The threaded portion of the tuning screw is located in the threaded hole, a flat outer edge head is provided above the upper surface of the threaded portion and the outer edge head is always located above the upper surface of the cavity cover, a tuning column is provided below the threaded portion and the tuning column is located in the resonance cavity; the outer edge head, the threaded portion and the tuning column of the tuning screw are connected in sequence.

[0010] Furthermore, the shape of the outer edge head is fan-shaped, the long side length of the bottom where the outer edge head is connected to the upper surface of the threaded part is greater than or equal to the diameter length of the threaded part, and the chord length corresponding to the arc of the outer edge head is greater than the diameter length of the threaded part.

[0011] Furthermore, the shape of the outer edge head is a rectangle, and the length of the long side of the bottom where the outer edge head is connected to the upper surface of the threaded portion is greater than or equal to the diameter length of the threaded portion.

[0012] Furthermore, a plurality of protrusions are provided on the surface of the outer edge head, and the protrusions are formed by connecting adjacent fins in an arc shape, and a hollow state is formed between the protrusions and the surface of the outer edge head.

[0013] Specifically, the protrusion and the outer edge head are integrally formed.

[0014] Furthermore, the outer edge head, the threaded portion, and the tuning column are sequentially connected to form an integrated structure.

[0015] Furthermore, the outer edge head, the threaded portion, and the tuning column are made of metal copper or metal aluminum.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] The utility model provides a filter with a heat dissipation tuning screw. By arranging a flat outer edge head, the heat dissipation area of ​​the outer edge head is increased, so that the filter can further quickly dissipate the heat generated during operation on the original basis, effectively maintain the stable performance of the filter, and extend its service life; at the same time, the flat outer edge head makes it possible to perform the tuning operation directly by hand without the aid of tools, thereby simplifying the operation process, being suitable for a variety of working environments and application scenarios, and improving the adjustment efficiency and flexibility; a plurality of protrusions on the surface of the outer edge head are formed by adjacent fins connected by an arc, and the protrusions are in a hollow state with the surface of the outer edge head, so that the inner and outer sides of the protrusions can contact the external space at the same time and perform heat exchange, thereby further improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0019] Figure 1 The utility model is a schematic diagram of the structure of a filter with heat dissipation tuning screws.

[0020] Figure 2 For attachment Figure 1 A partial enlarged view of the middle K section.

[0021] Figure 3 The utility model is a front view of a filter with heat dissipation tuning screws.

[0022] Figure 4 The utility model is a side view of a filter with heat dissipation tuning screws.

[0023] Figure 5 The utility model is a top view of a filter with heat dissipation tuning screws.

[0024] Figure 6 It is a schematic diagram of the protrusion structure of the utility model.

[0025] Marks and corresponding parts names in the attached drawings:

[0026] 1-filter housing, 101-resonance cavity, 2-cavity cover, 201-threaded hole, 3-outer edge head, 301-protrusion, 302-fin, 4-threaded part, 5-tuning column. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0028] Example 1

[0029] like Figure 1 As shown, the utility model provides a filter with a heat dissipation tuning screw, comprising a filter housing 1, wherein the upper surface of the filter housing 1 is provided with a cavity cover plate 2, wherein the cavity cover plate 2 is provided with a threaded hole 201 adapted to a threaded portion 4 of the tuning screw; a resonant cavity 101 is provided inside the filter housing 1.

[0030] refer to Figure 2The threaded portion 4 of the tuning screw is located in the threaded hole 201, a flat outer head 3 is provided above the upper surface of the threaded portion 4 and the outer head 3 is always located above the upper surface of the cavity cover 2, a tuning column 5 is provided below the threaded portion 4 and the tuning column 5 is located in the resonance cavity 101; the outer head 3, the threaded portion 4 and the tuning column 5 of the tuning screw are connected in sequence; the flat outer head 3 provides a larger heat dissipation area in contact with the external space, thereby improving the heat dissipation efficiency; at the same time, the flat outer head 3 can provide a larger contact area during hand-held operation, so that the fingers can apply force and grip more smoothly, which can increase the stability and accuracy of the operation, allowing people to more easily and firmly hold the nut for rotation or adjustment, etc., reducing the risk of misoperation caused by hand slippage or instability, and the larger contact area also allows the applied force to be more evenly distributed on the nut, thereby making the adjustment process smoother and more controllable.

[0031] For further reference, Figure 3-Figure 5 The shape of the outer edge head 3 is fan-shaped, the long side length of the bottom where the outer edge head 3 is connected to the upper surface of the threaded portion 4 is greater than or equal to the diameter length of the threaded portion 4, and the chord length corresponding to the arc of the outer edge head 3 is greater than the diameter length of the threaded portion 4.

[0032] Furthermore, the shape of the outer edge head 3 is a rectangle, and the length of the long side of the bottom of the outer edge head 3 connected to the upper surface of the threaded portion 4 is greater than or equal to the diameter length of the threaded portion 4.

[0033] For further reference, Figure 6 The surface of the outer edge head 3 is provided with a plurality of protrusions 301, and the protrusions 301 are formed by adjacent fins 302 connected by arcs. The protrusions 301 and the surface of the outer edge head 3 are hollowed out, so that the inner and outer sides of the protrusions can contact the external space at the same time and exchange heat, thereby further improving the heat dissipation efficiency; at the same time, the plurality of protrusions 301 on the surface of the outer edge head 3 make the surface of the outer edge head 3 rough, thereby increasing the friction and reducing the problem caused by hand slipping when performing tuning operations barehanded.

[0034] Specifically, the protrusion 301 and the outer edge head 3 are integrally formed.

[0035] Furthermore, the outer head portion 3, the threaded portion 4, and the tuning column 5 are connected in sequence in an integrated manner, so that the tuning screw avoids problems such as loosening and failure that may occur due to the connection of multiple components, and the whole is more stable and reliable.

[0036] Furthermore, the outer edge head 3, the threaded portion 4, and the tuning column 5 are made of metal copper or metal aluminum. Metal copper or metal aluminum has good thermal conductivity, which can further improve the heat dissipation effect of the tuning screw.

[0037] The method of using the utility model is:

[0038] When the filter is powered off, directly touch and pinch the flat outer head with your fingers, then apply force evenly and steadily to twist it, so that the outer head rotates in the direction of the force applied by the fingers. Since the outer head, threaded part, and tuning column are integrated, the threaded part and the tuning column also rotate and move up and down with the outer head, so that the position of the tuning column in the resonant cavity changes, thereby completing the tuning operation. After power is turned on. The filter starts to operate and generate heat. The heat in the resonant cavity is transferred to the flat outer head through the tuning column. Since the flat outer head has a larger contact area with the external space, the heat exchange efficiency with the external space is further improved, thereby maintaining the normal operation of the filter.

[0039] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A filter with a heat dissipation tuning screw, comprising a filter housing (1), characterized in that: The upper surface of the filter housing (1) is provided with a cavity cover plate (2), and the cavity cover plate (2) is provided with a threaded hole (201) adapted to the threaded portion (4) of the tuning screw; a resonant cavity (101) is provided inside the filter housing (1); The threaded portion (4) of the tuning screw is located in the threaded hole (201); a flat outer head (3) is provided above the upper surface of the threaded portion (4), and the outer head (3) is always located above the upper surface of the cavity cover (2); a tuning column (5) is provided below the threaded portion (4), and the tuning column (5) is located in the resonant cavity (101); the outer head (3), the threaded portion (4), and the tuning column (5) of the tuning screw are connected in sequence.

2. A filter with heat dissipation tuning screws according to claim 1, characterized in that: The shape of the outer edge head (3) is fan-shaped, the length of the long side of the bottom of the outer edge head (3) connected to the upper surface of the threaded portion (4) is greater than or equal to the diameter length of the threaded portion (4), and the chord length corresponding to the arc of the outer edge head (3) is greater than the diameter length of the threaded portion (4).

3. A filter with heat dissipation tuning screws according to claim 1, characterized in that: The shape of the outer edge head (3) is rectangular, and the length of the long side of the bottom of the outer edge head (3) connected to the upper surface of the threaded portion (4) is greater than or equal to the diameter length of the threaded portion (4).

4. A filter with heat dissipation tuning screws according to claim 1, characterized in that: The surface of the outer edge head (3) is provided with a plurality of protrusions (301), the protrusions (301) being formed by connecting adjacent fins (302) in an arc shape, and a hollow state is formed between the protrusions (301) and the surface of the outer edge head (3).

5. A filter with heat dissipation tuning screws according to claim 4, characterized in that: The protrusion (301) and the outer edge head (3) are integrally formed.

6. The filter with heat dissipation tuning screws according to claim 1, characterized in that: The outer edge head (3), the threaded portion (4), and the tuning column (5) are sequentially connected in an integrated manner.

7. The filter with heat dissipation tuning screws according to claim 1, characterized in that: The outer edge head (3), the threaded portion (4), and the tuning column (5) are made of metal copper or metal aluminum.

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