Frame type electronic tube cavity structure

Abstract

The utility model is applicable to the technical field of electron tube cavities, and particularly relates to a frame type electron tube cavity structure which comprises a cuboid frame, a group of water cooling plates are horizontally arranged in the middle of the cuboid frame, and a first partition plate and a second partition plate are vertically mounted on two sides of each water cooling plate respectively. A cuboid formed by the cuboid frame is sealed through a plurality of plates, and a sealed cuboid structure is formed. According to the frame type electronic tube cavity structure provided by the utility model, internal parts of an electronic tube power amplifier are separated according to functions through the establishment of the frame main body structure and the separation cavities, and adjustment and maintenance can be conveniently carried out by opening the sealing plates on the corresponding sides. In addition, overturning adjustment on the upper side and the lower side can be conducted in an open state after the sealing plate is opened, and at the moment, the structure is still stable and does not deform.

Description

A frame-type electron tube cavity structure Technical Field

[0001] This utility model belongs to the field of electron tube cavity technology, and particularly relates to a frame-type electron tube cavity structure. Background Technology

[0002] Vacuum tube power amplifiers are the core components of high-power radio frequency (RF) power supplies. This amplifier consists of vacuum tubes and their associated circuitry connected together to form an RF circuit, equipped with a water-cooling system, and housed within a sealed metal cavity. The cavity is a rectangular, enclosed structure made of metal plates. The vacuum tubes and their associated circuitry are divided according to different functions, mainly into: vacuum tube, resonant cavity, high-voltage power supply section, signal sampling section, measurement and control section, filament power supply section, and bias section. These different functional areas must be effectively connected while remaining relatively isolated to avoid mutual interference and influence. This rectangular, three-dimensional cavity structure is divided into multiple independent cavities according to function to house different functional circuits.

[0003] Existing vacuum tube power amplifier cavities are difficult to open. To open one cavity, the screws connecting it to the adjacent cavity must be removed, which involves flipping multiple surfaces before the fixing screws can be removed. After the cavity is opened, the structure deforms. Summary of the Invention

[0004] The purpose of this invention is to provide a frame-type electron tube cavity structure, which aims to solve the problems of existing electron tube power amplifier cavities, such as difficulty in opening the cavity, the need to remove the screws connecting the adjacent cavities to open one cavity, the need to flip multiple surfaces before removing the fixing screws, and structural deformation after the cavity is opened.

[0005] This utility model is implemented as follows: a frame-type electron tube cavity structure, the frame-type electron tube cavity structure includes a cuboid frame, a set of water-cooling plates is horizontally arranged in the middle of the cuboid frame, and a first partition and a second partition are vertically installed on both sides of the water-cooling plates respectively. The cuboid formed by the cuboid frame is closed by multiple plates to form a closed cuboid structure. The first partition and the second partition divide the area on both sides of the water-cooling plate into two independent mounting cavities. Each mounting cavity is closed by a detachable plate.

[0006] Preferably, the cuboid frame includes an upper frame, a lower frame, and columns, with both the upper and lower frames consisting of four side frames.

[0007] Preferably, the cuboid frame is fixedly installed with a first side plate and a second side plate at both ends of the first partition, the cuboid frame is fixedly installed with a first back plate and a third back plate at one end of the second partition, the cuboid frame is fixedly installed with a second back plate at the end of the second partition away from the first back plate, the cuboid frame is closed by a second sealing plate at the end of the cuboid frame near the first partition, and the cuboid frame is closed by a first sealing plate at the end of the cuboid frame near the second partition.

[0008] Preferably, both the first partition and the second partition have a bending area in the middle, and both the first partition and the second partition are fixedly installed on the water-cooling plate.

[0009] Preferably, the water-cooled plate has a thickness of 1.5 mm and is embedded with water-cooled pipes.

[0010] The frame-type electron tube cavity structure provided by this utility model, through the establishment of the above-mentioned frame main structure and partition cavities, separates the internal components of the electron tube power amplifier according to function. Adjustment and maintenance can be easily performed by opening the corresponding side sealing plates. Furthermore, when performing flipping adjustments on the upper and lower sides, it can be done in an open state after the sealing plates have been opened, at which point the structure remains stable and does not deform. Attached Figure Description

[0011] Figure 1 is a schematic diagram of the first mounting structure of a frame-type electron tube cavity structure provided in an embodiment of the present utility model;

[0012] Figure 2 is a schematic diagram of the second mounting structure of a frame-type electron tube cavity structure provided in an embodiment of the present utility model;

[0013] Figure 3 is a schematic diagram of the third mounting structure of a frame-type electron tube cavity structure provided in an embodiment of the present utility model;

[0014] Figure 4 is a schematic diagram of the fourth mounting structure of a frame-type electron tube cavity structure provided in an embodiment of the present utility model;

[0015] Figure 5 is a schematic diagram of the fifth installation structure of a frame-type electron tube cavity structure provided in an embodiment of this utility model.

[0016] In the attached diagram: 1. Frame; 2. Water-cooled plate; 3. First partition; 4. First back plate; 5. First side plate; 6. Second back plate; 8. Second partition; 9. Second side plate; 10. Third back plate; 13. First sealing plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0019] As shown in Figures 1, 2, 3, 4, and 5, a frame-type electron tube cavity structure is provided in an embodiment of this utility model. The frame-type electron tube cavity structure includes a cuboid frame. A set of water-cooled plates 2 are horizontally arranged in the middle of the cuboid frame. A first partition 3 and a second partition 8 are vertically installed on both sides of the water-cooled plates 2, respectively. The cuboid frame is closed by multiple plates to form a closed cuboid structure. The first partition 3 and the second partition 8 divide the areas on both sides of the water-cooled plates 2 into two independent mounting cavities. Each mounting cavity is closed by a detachable plate.

[0020] The purpose of this invention is to provide a frame-type vacuum tube cavity structure, which enables vacuum tube power amplifiers to be easily installed, repaired, and adjusted. The key points are: first, establishing a stable frame-type main structure; second, dividing the stable main structure to form closed functional cavities; and third, ensuring that at least one side of the sealing plate of each functional cavity can be easily opened without any structural involvement or impact on other functional cavities, while also maintaining the overall structural stability.

[0021] Establish a frame-type main structure: This is the skeleton of the electron tube cavity, which supports the entire cavity. It consists of a rectangular frame assembled from the middle water-cooling plate 2 and aluminum alloy profiles.

[0022] Water-cooled plate 2 is the core support, made of 1.5mm thick aluminum plate, with embedded water-cooling pipes and screw holes of various specifications machined on it. It is divided into two sides, front and back, and is used to install the main electrical components of the electron tube amplifier.

[0023] The cuboid frame is composed of four frame columns (i.e., aluminum alloy profiles) as uprights, and four frame squares (each composed of four frame columns) at the top and bottom, which are then connected and fixed with screws using specialized profile components. The aluminum alloy profiles are square hollow structures, which have the advantages of being lightweight, high-strength, and easy to assemble.

[0024] According to the profile cross-section dimensions, the water-cooled plate 2 is milled off 4 feet and embedded into the square frame composed of 4 columns of a cuboid frame. After being fixed with standard profile components, a stable frame structure is formed.

[0025] 2. Forming a closed functional cavity

[0026] Based on the above framework, multiple cavities are formed by partitioning and installing sealing plates to functionally separate the electrical components installed on the water-cooled plate 2, thereby achieving shielding and isolation.

[0027] The cuboid frame is fixedly installed with a first side plate 5 and a second side plate 9 at both ends of the first partition 3. The cuboid frame is fixedly installed with a first back plate 4 and a third back plate 10 at one end of the second partition 8. The cuboid frame is fixedly installed with a second back plate 6 at the end of the second partition 8 away from the first back plate 4. The end of the cuboid frame near the first partition 3 is closed by a second sealing plate. The end of the cuboid frame near the second partition 8 is closed by a first sealing plate 13.

[0028] A first partition 3 is vertically installed on the water-cooled plate 2, dividing the upper part of the water-cooled plate 2 into left and right sections. The first partition 3 is bent vertically, with its lower side fixed to the water-cooled plate 2 and its upper side fixed to the second sealing plate. Two partitioned cavities are formed in the upper part of the water-cooled plate 2. One partitioned cavity serves as the resonant cavity for the electron tube housing, used to install the electron tube and resonant coil. The other partitioned cavity is used to install the cooling water dispensing box, water pipes, and components such as the capacitor tuning rod. The plates are fixed to the aluminum frame profile and the side of the water-cooled plate 2 with screws, thus forming two independent sealed cavities in the upper part of the entire cavity. Due to their different functions, the two side sealing plates can be opened separately for internal inspection and tuning.

[0029] A second partition 8 is vertically installed below the water-cooled plate 2, horizontally dividing the lower part of the water-cooled plate 2 into front and rear sections. The second partition 8 is bent vertically, with its lower side fixed to the first sealing plate 13 and its upper side fixed to the water-cooled plate 2. Two partitioned cavities are formed in the lower part of the water-cooled plate. One partitioned cavity is used to install components such as electron tube filament transformers, filter boards, common-mode suppression inductors, and matching boards; the other partitioned cavity is used to install circuit components such as measurement boards, sampling boards, and ARC circuit boards. The plates are fixed to the aluminum frame profile and the side of the water-cooled plate 2 with screws, thus forming two independent sealed cavities in the lower part of the entire cavity. Due to the different functions of the components installed in the front and rear sections, it is necessary to be able to open the side and front sealing plates separately for sampling and matching tuning.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A frame-type electron tube cavity structure, characterized in that, The frame-type electron tube cavity structure includes a cuboid frame, a set of water-cooled plates (2) is horizontally arranged in the middle of the cuboid frame, and a first partition (3) and a second partition (8) are vertically installed on both sides of the water-cooled plates (2). The cuboid formed by the cuboid frame is closed by multiple plates to form a closed cuboid structure. The first partition (3) and the second partition (8) divide the area on both sides of the water-cooled plates (2) into two independent mounting cavities. Each mounting cavity is closed by a detachable plate.

2. The frame-type electron tube cavity structure according to claim 1, characterized in that, The cuboid frame includes an upper frame, a lower frame, and columns. Both the upper and lower frames are composed of four side frames (1).

3. The frame-type electron tube cavity structure according to claim 1, characterized in that, The cuboid frame is fixedly installed with a first side plate (5) and a second side plate (9) at both ends of the first partition (3). The cuboid frame is fixedly installed with a first back plate (4) and a third back plate (10) at one end of the second partition (8). The cuboid frame is fixedly installed with a second back plate (6) at the end of the second partition (8) away from the first back plate (4). The end of the cuboid frame close to the first partition (3) is closed by a second sealing plate. The end of the cuboid frame close to the second partition (8) is closed by a first sealing plate (13).

4. The frame-type electron tube cavity structure according to claim 1, characterized in that, The first partition (3) and the second partition (8) are both provided with a bending area in the middle, and the first partition (3) and the second partition (8) are both fixedly installed on the water-cooled plate (2).

5. The frame-type electron tube cavity structure according to claim 1, characterized in that, The water-cooled plate (2) has a thickness of 1.5 mm and is embedded with water-cooled pipes.

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