A small and light-weight radio altimeter
By designing an openable and closable heat dissipation hole structure on a small, lightweight radio altimeter radar, the problems of poor heat dissipation and external environmental influences are solved, achieving efficient heat dissipation and component protection, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU DONGLIU INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-12
AI Technical Summary
Existing small, lightweight radio altimeter radars have a compact structure, which results in poor heat dissipation, affecting measurement accuracy and service life. Furthermore, the heat dissipation holes are susceptible to external environmental influences and dust intrusion.
A structure with openable and closable heat dissipation holes was designed. The rotation of the protective plate is controlled by a locking component to open and close the heat dissipation holes, thus protecting the internal components from being affected by extreme weather conditions.
While ensuring heat dissipation, it prevents the external environment from affecting internal components, extends service life, maintains measurement accuracy, and does not increase weight or size.
Smart Images
Figure CN224354574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ranging radar technology, and more specifically, to a small, lightweight radio altimeter radar. Background Technology
[0002] Radio altimeter radar, also known as radar altimeter or radio altimeter, is a detection device that measures the vertical distance of a carrier relative to the ground or sea surface by transmitting and receiving microwave signals. It is used for altitude-keeping flight, obstacle avoidance, and precise landing, such as terrain-following control during multi-rotor drone operations.
[0003] Currently, the radio altimeter radars installed on drones are usually small and lightweight, with a compact structure, small size, and light weight, making them convenient for drones to carry and use. However, the compact structure of existing small and lightweight radio altimeters can lead to poor heat dissipation of internal components, thus affecting measurement accuracy and service life. Some small and lightweight radio altimeters have heat dissipation holes on their surface to cool the internal components. However, the presence of heat dissipation holes can easily expose the internal components of the altimeter radar to the influence of the external environment, especially in extreme outdoor weather conditions. Moreover, the heat dissipation holes can also easily allow dust to enter the altimeter radar when it is not in use. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a small and lightweight radio altimeter radar. This aims to solve the problem that the compact structure of existing small and lightweight radio altimeters leads to poor heat dissipation of internal components, thus affecting measurement accuracy and service life. Some small and lightweight radio altimeters have heat dissipation holes on their surface to cool internal components; however, these holes easily expose the internal components to external environmental influences, especially in extreme outdoor weather conditions. Furthermore, the heat dissipation holes can also allow dust to enter the altimeter radar when it is not in use.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution:
[0008] A small, lightweight radio altimeter radar includes a housing. An antenna module, an RF module, and a processing module are fixedly connected sequentially from top to bottom within the housing. A mounting plate is fixedly connected to the bottom of the housing, located below the antenna module, RF module, and processing module. A set of heat dissipation holes is provided on both symmetrical ends of the housing. Two sets of protective plates are rotatably connected to the top of the mounting plate, with the two sets of protective plates located on symmetrical sides of the housing corresponding to the two sets of heat dissipation holes. A connecting rod is rotatably connected to the top of each of the two sets of protective plates. A movable rod is provided on one side of the housing, with two sliding openings on the movable rod. Rollers are rotatably connected to one end of each of the two connecting rods, and the two rollers are slidably connected within the two sliding openings. A locking assembly is provided between the movable rod and the housing, used to fix the movable rod to one side of the housing to secure the two sets of protective plates.
[0009] As a preferred embodiment of this utility model, the locking assembly includes a bolt and a threaded hole. The bolt is rotatably connected to the middle of the moving rod, and the threaded hole is opened at one end of the housing, with the bolt threaded into the threaded hole.
[0010] As a preferred embodiment of this utility model, the end of the movable rod near the housing is fixedly connected to a rod assembly, and the rod assembly is slidably inserted into the housing.
[0011] As a preferred embodiment of this utility model, a rubber pad is fixedly connected to the top of the mounting plate, and the rubber pad is located inside the housing and corresponds to the bottom of the processing module.
[0012] As a preferred embodiment of this utility model, the mounting plate has four mounting holes, which are evenly distributed at the four corners of the mounting plate.
[0013] 3. Beneficial Effects
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] (1) In this scheme, the mounting plate fixes the antenna module, radio frequency module and processing module in the housing to form a compact and simple small lightweight radio altimeter radar. The two sets of heat dissipation holes can dissipate heat when the radar is in use, extend the service life of the radar and ensure measurement accuracy. When the small lightweight radio altimeter radar encounters extreme weather or is not in use, the moving rod is fixed to one side of the housing by locking assembly, so that the two sets of protective plates rotate inward to close the two sets of heat dissipation holes, thereby reducing the impact of the external environment on the internal components of the radar.
[0016] (2) In this scheme, both sets of protective plates are composed of multiple small and thin blades. With the simple locking assembly, two connecting rods and moving rod, they can protect the heat dissipation holes without increasing the weight and volume of the height measuring radar too much. Attached Figure Description
[0017] Figure 1 This is the front view of the present invention;
[0018] Figure 2 This is a cross-sectional view of the present invention;
[0019] Figure 3 This is a perspective view of the shell in this utility model;
[0020] Figure 4 This is a perspective view of a portion of the structure of this utility model;
[0021] Figure 5 In this utility model Figure 4 Exploded view.
[0022] Explanation of the labels in the diagram:
[0023] 1. Housing; 2. Antenna module; 3. RF module; 4. Processing module; 5. Mounting plate; 6. Heat dissipation hole; 7. Protective plate; 8. Connecting rod; 9. Moving rod; 10. Sliding port; 11. Roller; 121. Bolt; 122. Threaded hole; 13. Insert rod assembly; 14. Rubber pad; 15. Mounting hole. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Example:
[0028] Please see Figure 1-5 A small, lightweight radio altimeter radar includes a housing 1. An antenna module 2, a radio frequency module 3, and a processing module 4 are fixedly connected sequentially from top to bottom inside the housing 1. A mounting plate 5 is fixedly connected to the bottom of the housing 1, and the mounting plate 5 is located below the antenna module 2, radio frequency module 3, and processing module 4. A set of heat dissipation holes 6 are provided on both symmetrical ends of the housing 1. Two sets of protective plates 7 are rotatably connected to the top of the mounting plate 5, and the two sets of protective plates 7 are located on the symmetrical sides of the housing 1, corresponding to the two sets of heat dissipation holes 6. A connecting rod 8 is rotatably connected to the top of each of the two sets of protective plates 7. A movable rod 9 is provided on one side of the housing 1, and two sliding openings 10 are provided on the movable rod 9. Rollers 11 are rotatably connected to one end of each of the two connecting rods 8, and the two rollers 11 are slidably connected within the two sliding openings 10. A locking assembly is provided between the movable rod 9 and the housing 1, and the locking assembly is used to fix the movable rod 9 to one side of the housing 1 to fix the two sets of protective plates 7.
[0029] In this embodiment, the mounting plate 5 is fixedly installed at the bottom of the housing 1, and the antenna module 2, radio frequency module 3, and processing module 4 are sequentially encapsulated within the housing 1 from top to bottom, thus forming a compact small radio altimeter radar. Moreover, the structure is simple and lighter. The antenna module 2 is used for signal transmission and reception, the radio frequency module 3 is used for signal control, and the processing module 4 is used for signal processing. The antenna module 2, radio frequency module 3, and processing module 4 are all common knowledge to those skilled in the art and will not be described in detail in this application. Two sets of heat dissipation holes 6 are opened on both sides of the housing 1 and the antenna... Module 2, RF module 3, and processing module 4 correspond to each other and can perform heat dissipation treatment on the compact internal components of the small and lightweight radio altimeter radar. When the small and lightweight radio altimeter radar encounters extreme weather or is not in use, the locking assembly fixes the side end of the moving rod 9 close to the housing 1. During the fixing process, the moving rod 9 pushes the two connecting rods 8. The two connecting rods 8 slide close to each other in the two moving rods 9 through the two rollers 11, and push the two sets of protective plates 7 to rotate and close the two sets of heat dissipation holes 6, thereby preventing the external environment from affecting the internal components of the small and lightweight radio altimeter radar.
[0030] Specifically, the locking assembly includes a bolt 121 and a threaded hole 122. The bolt 121 is rotatably connected to the middle of the moving rod 9, and the threaded hole 122 is opened on one side of the housing 1, and the bolt 121 is threaded into the threaded hole 122.
[0031] In this embodiment, by rotating the bolt 121 and moving it in the threaded hole 122, the bolt 121 drives the moving rod 9 to move on one side of the housing 1. When the moving rod 9 moves closer to the housing 1, it can cause the two sets of protective plates 7 to rotate and close the two sets of heat dissipation holes 6. When the moving rod 9 moves away from the housing 1, it can cause the two sets of protective plates 7 to rotate and open the two sets of heat dissipation holes 6 for heat dissipation.
[0032] Specifically, the end of the movable rod 9 near the housing 1 is fixedly connected to the insertion rod assembly 13, and the insertion rod assembly 13 is slidably inserted into the housing 1.
[0033] In this embodiment, when the moving rod 9 moves on one side of the housing 1, it will drive the insertion rod assembly 13 to move. The insertion and withdrawal of the insertion rod assembly 13 on one side of the housing 1 improves the stability of the movement of the moving rod 9.
[0034] Specifically, a rubber pad 14 is fixedly connected to the top of the mounting plate 5, and the rubber pad 14 is located inside the housing 1 and corresponds to the bottom of the processing module 4.
[0035] In this embodiment, the rubber pad 14 can press and fix the antenna module 2, the radio frequency module 3 and the processing module 4 inside the housing 1, so that the components inside the housing 1 remain stable.
[0036] Specifically, the mounting plate 5 has four mounting holes 15, which are evenly distributed at the four corners of the mounting plate 5.
[0037] In this embodiment, the mounting plate 5 is mounted on the UAV through four mounting holes 15 and screws, which enables the fixation of a small and lightweight radio altimeter radar.
[0038] Working Principle: The mounting plate 5 encapsulates the antenna module 2, RF module 3, and processing module 4 within the housing 1 to form a small, lightweight radio altimeter radar. The mounting plate 5 is installed on the bottom of the UAV. Altitude measurement is performed through the cooperation of the antenna module 2, RF module 3, and processing module 4. When the small, lightweight radio altimeter radar encounters extreme weather or is not in use, the bolt 121 is rotated and moved within the threaded hole 122. The bolt 121 drives the moving rod 9 closer to the housing 1, fixing the moving rod 9 to one end of the housing 1. During the movement, the moving rod 9 pushes two connecting rods 8. The two connecting rods 8 slide closer to each other within the two moving rods 9 via two rollers 11, pushing the two sets of protective plates 7 to rotate and close the two sets of heat dissipation holes 6, thus preventing the external environment from affecting the internal components of the small, lightweight radio altimeter radar. When the small, lightweight radio altimeter radar is used in a normal environment, the moving rod 9 is rotated in the opposite direction, causing the two connecting rods 8 to drive the two sets of protective plates 7 to unfold outward, thereby opening the two sets of heat dissipation holes 6 to dissipate heat from the internal components of the altimeter radar and extend its service life.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A small, lightweight radio altimeter radar, comprising a housing (1), characterized in that: The housing (1) contains, from top to bottom, an antenna module (2), a radio frequency module (3), and a processing module (4). A mounting plate (5) is fixedly connected to the bottom of the housing (1), and the mounting plate (5) is located below the antenna module (2), radio frequency module (3), and processing module (4). A set of heat dissipation holes (6) is provided on both symmetrical ends of the housing (1). Two sets of protective plates (7) are rotatably connected to the top of the mounting plate (5), and the two sets of protective plates (7) are located on the symmetrical sides of the housing (1) and adjacent to the two sets of heat dissipation holes (6). Correspondingly, the top of each of the two sets of protective plates (7) is rotatably connected to a connecting rod (8), and a moving rod (9) is provided on one side of the housing (1). Two sliding openings (10) are provided on the moving rod (9). One end of each of the two connecting rods (8) is rotatably connected to a roller (11), and the two rollers (11) are slidably connected in the two sliding openings (10). A locking assembly is provided between the moving rod (9) and the housing (1). The locking assembly is used to fix the moving rod (9) to one side of the housing (1) to achieve the fixation of the two sets of protective plates (7).
2. The small, lightweight radio altimeter radar according to claim 1, characterized in that: The locking assembly includes a bolt (121) and a threaded hole (122). The bolt (121) is rotatably connected to the middle of the moving rod (9). The threaded hole (122) is opened on one side of the housing (1), and the bolt (121) is threaded into the threaded hole (122).
3. A small, lightweight radio altimeter radar according to claim 2, characterized in that: The movable rod (9) is fixedly connected to a rod assembly (13) at one end near the housing (1), and the rod assembly (13) is slidably inserted into the housing (1).
4. A small, lightweight radio altimeter radar according to claim 3, characterized in that: The top of the mounting plate (5) is fixedly connected to a rubber pad (14), and the rubber pad (14) is located inside the housing (1) and corresponds to the bottom of the processing module (4).
5. A small, lightweight radio altimeter radar according to claim 4, characterized in that: The mounting plate (5) has four mounting holes (15), and the four mounting holes (15) are evenly distributed at the four corners of the mounting plate (5).