A laser range finder suitable for near-earth orbit environment

Abstract

The utility model provides a kind of laser range finder suitable for near-earth orbit environment, it is related to laser ranging technical field.It includes transmitting and receiving component, circuit bin, circuit component, the rear side of transmitting and receiving component is plane and with external fixed equipment detachably connected, circuit bin is connected with transmitting and receiving component, circuit component is connected in the inside of circuit bin and with transmitting and receiving component electricity is connected, the inside of circuit bin can form enclosed space.Circuit bin inside formed enclosed space, can limit the propagation of radiation, high-energy particles need to pass through the cover of circuit bin to reach sensitive device, effectively reduce the influence of high-energy particles on circuit.The plane of the rear side of transmitting and receiving component can form sufficient contact with external fixed equipment, increase the heat transfer area, the heat inside laser range finder can be transferred to outside in time, so that structure layout is more reasonable, increase overall heat dissipation efficiency, effectively solve the heat dissipation problem under vacuum environment.

Description

Technical Field

[0001] This utility model relates to the field of laser ranging technology, and in particular to a laser ranging device suitable for near-Earth orbit environments. Background Technology

[0002] Laser rangefinders are instruments that use lasers to accurately measure the distance to targets. They offer advantages such as simple operation, high measurement accuracy, long operating range, and strong anti-interference capabilities. Laser ranging technology has extremely wide and crucial applications in low Earth orbit, demonstrating significant advantages in precision measurement, deep space exploration, and space debris tracking.

[0003] The applicant has discovered at least the following technical problems in the existing technology: In a near-Earth orbit environment, the optical system is significantly affected. The large amount of atomic oxygen in near-Earth orbit can lead to decreased transmission performance of conventional glass lenses, lens erosion, high-energy impact damage to the coating, and lens oxidation. Simultaneously, the circuitry is affected by radiation in a near-Earth orbit environment. Radiation protection, including total dose protection and single-particle protection, can cause circuit failure, data errors, and functional malfunctions. Furthermore, the heat dissipation configuration in a vacuum environment must be carefully considered to ensure that the operating temperature does not exceed the rated temperature. Therefore, ensuring the normal operation of the laser rangefinder in a near-Earth orbit environment is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this invention is to provide a laser rangefinder suitable for near-Earth orbit environments, thereby solving the technical problems existing in the prior art. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A laser rangefinder suitable for near-Earth orbit environments includes a transmitter-receiver assembly, a circuit compartment, and a circuit assembly. The rear side of the transmitter-receiver assembly is flat and detachably connected to an external fixed device. The circuit compartment is connected to the transmitter-receiver assembly, and the circuit assembly is connected inside the circuit compartment and electrically connected to the transmitter-receiver assembly. The interior of the circuit compartment can form a closed space.

[0006] Preferably, the transmitting and receiving assembly includes a metal housing, a laser, an optical lens assembly, and a detector. The rear side of the metal housing is flat and detachably connected to the external fixed device. The laser is connected to the side of the metal housing. The optical lens assembly is connected to the front side of the metal housing. The detector is connected inside the metal housing and located behind the optical lens assembly. The laser and the detector are electrically connected to the circuit assembly.

[0007] Preferably, the optical lens assembly includes a plurality of optical lenses arranged sequentially along the optical path direction, and the optical lenses are made of quartz material.

[0008] Preferably, the surface of the optical lens is coated.

[0009] Preferably, the rear side of the metal housing is bolted to the external fixing device by a plurality of fixing bolts.

[0010] Preferably, the circuit compartment includes a circuit compartment body and a circuit compartment cover. The circuit compartment body is connected to the transmitting and receiving assembly, the circuit assembly is connected inside the circuit compartment body, and the circuit compartment cover is detachably connected to the circuit compartment body.

[0011] Preferably, the circuit compartment cover is bolted to the circuit compartment body by a plurality of fixing bolts.

[0012] Preferably, the circuit compartment cover protrudes inward along the thickness direction to form a thickened portion for the corresponding projection range of the components on the circuit assembly that require high anti-interference capability.

[0013] Preferably, the device further includes a connector that is connected to the circuit compartment and electrically connected to the circuit assembly, the other end of which is electrically connected to an external control device.

[0014] Preferably, the circuit assembly is provided with a filter.

[0015] The beneficial effects of this utility model are as follows: Since the circuit compartment forms a closed space and the circuit components are concentrated inside the circuit compartment, a closed circuit design effect is formed, which restricts the propagation of radiation. High-energy particles need to pass through the compartment cover to reach sensitive devices. Therefore, the impact of high-energy particles on the circuit can be effectively reduced, and the total dose resistance design requirements in the radiation protection of circuits are met.

[0016] Because the rear of the transmitting and receiving components is designed as a plane, the plane can make full contact with the external fixed equipment and form a sufficiently large contact surface, increasing the heat conduction area. The heat inside the laser rangefinder can be transferred to the outside in a timely manner, making the structural layout more reasonable, increasing the overall heat dissipation efficiency inside the laser rangefinder, and effectively solving the heat dissipation problem in a vacuum environment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an exploded structural diagram of the present invention from one perspective; Figure 2 This is an exploded structural diagram of the present invention from another perspective; In the diagram: 1. Transmitter / receiver assembly; 11. Metal housing; 12. Laser; 13. Optical lens assembly; 14. Detector; 2. Circuit compartment; 21. Circuit compartment body; 22. Circuit compartment cover; 221. Thickened part; 3. Circuit components; 4. Connector. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be understood that the terms "center," "side," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Reference Figures 1 to 2 This utility model provides a laser rangefinder suitable for near-Earth orbit environments, including a transmitter-receiver component 1, a circuit compartment 2, and a circuit assembly 3. The rear side of the transmitter-receiver component 1 is flat and detachably connected to an external fixed device. The circuit compartment 2 is connected to the transmitter-receiver component 1, and the circuit assembly 3 is connected inside the circuit compartment 2 and electrically connected to the transmitter-receiver component 1. The interior of the circuit compartment 2 can form a closed space.

[0022] Because the circuit compartment 2 forms a closed space and the circuit components 3 are concentrated inside the circuit compartment 2, a closed circuit design effect is achieved, which limits the propagation of radiation. High-energy particles need to pass through the compartment cover of the circuit compartment 2 to reach sensitive devices. Therefore, the impact of high-energy particles on the circuit can be effectively reduced, and the total dose resistance design requirements in the radiation protection of circuits can be met.

[0023] Because the rear side of the transmitting and receiving component 1 is designed as a plane, the plane can make full contact with the external fixed equipment and form a sufficiently large contact surface, which increases the heat conduction area. The heat inside the laser rangefinder can be transferred to the outside in a timely manner, making the structural layout more reasonable, increasing the overall heat dissipation efficiency inside the laser rangefinder, and effectively solving the heat dissipation problem in a vacuum environment.

[0024] The laser rangefinder has undergone radiation resistance and thermal vacuum tests, which have significantly improved its reliability and effectiveness in near-Earth orbit environments.

[0025] As an optional implementation, the transmitter-receiver assembly 1 includes a metal housing 11, a laser 12, an optical lens assembly 13, and a detector 14.

[0026] The rear side of the metal housing 11 is flat and detachably connected to the external fixed equipment. The metal housing 11 further preferably protects the front housing, the middle housing and the rear housing. The front housing and the middle housing are detachably connected, which facilitates the installation of the optical lens assembly 13. The middle housing and the rear housing are detachably connected, which facilitates the installation of the detector 14.

[0027] Laser 12 is connected to the side of metal housing 11, optical lens assembly 13 is connected to the front of metal housing 11, detector 14 is connected inside metal housing 11 and located behind optical lens assembly 13, and laser 12 and detector 14 are electrically connected to circuit assembly 3.

[0028] In practical applications, the laser 12 can be used to emit laser light, which is reflected into the optical lens assembly 13 after illuminating the ranging object. The laser is then received by the detector 14, which converts the optical signal into an electrical signal and transmits it to the circuit assembly 3.

[0029] In this embodiment, the metal casing 11 is preferably made of a material with strong radiation resistance, and the metal casing 11 is preferably thickened to further enhance its shielding effect.

[0030] In this embodiment, the optical lens assembly 13 further includes a plurality of optical lenses arranged sequentially along the optical path direction. The optical lenses are made of quartz material. With this arrangement, the quartz material will not affect the transmittance of the lens in the near-Earth orbit atomic oxygen environment, effectively ensuring product performance. Meanwhile, the surface of the optical lens is preferably coated to further protect the optical lens.

[0031] As an optional implementation, the rear side of the metal housing 11 is bolted to the external fixed equipment by a number of fixing bolts. The bolted connection ensures good connection strength and is easier to assemble.

[0032] As an optional implementation, the circuit compartment 2 includes a circuit compartment body 21 and a circuit compartment cover 22. The circuit compartment body 21 is connected to the transmitter-receiver assembly 1. This connection can be fixed or integral. The circuit assembly 3 is connected inside the circuit compartment body 21. The circuit compartment cover 22 is detachably connected to the circuit compartment body 21.

[0033] As an optional implementation, the circuit compartment cover 22 is bolted to the circuit compartment body 21 by a number of fixing bolts. The bolted connection ensures good connection strength and is easier to assemble.

[0034] As an optional implementation, the circuit compartment cover 22 protrudes inward along the thickness direction to form a thickened portion 221 for the corresponding projection area of ​​the components with high anti-interference requirements on the circuit assembly 3. The thickened portion 221 can shield the components with high anti-interference requirements, further reducing the impact on such components.

[0035] As an optional implementation, a connector 4 is also included. The connector 4 is connected to the circuit compartment 2 and electrically connected to the circuit assembly 3. The other end of the connector 4 is electrically connected to an external control device. The connector can be used for the electrical connection between the external control device and the circuit assembly 3 to realize signal transmission.

[0036] As an optional implementation, the circuit component 3 is provided with a filter, which can filter out high-frequency noise and interference signals, reduce the interference of high-energy particles on the power supply, provide a stable power supply, and reduce the risk of single-event upset. In addition, a good grounding system can preferably be established in circuit component 3 to guide the radiation or noise generated in the circuit to the ground and reduce interference to other parts of the circuit; Apart from that, the rest of the structure and application principle of circuit component 3 are relatively conventional existing technologies that have wide applications in the field of optical equipment, so they will not be described in further detail.

[0037] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A laser rangefinder suitable for near-Earth orbit environments, characterized in that, It includes a transmitter-receiver assembly (1), a circuit compartment (2), and a circuit assembly (3). The rear side of the transmitter-receiver assembly (1) is flat and detachably connected to an external fixed device. The circuit compartment (2) is connected to the transmitter-receiver assembly (1). The circuit assembly (3) is connected inside the circuit compartment (2) and electrically connected to the transmitter-receiver assembly (1). The interior of the circuit compartment (2) can form a closed space.

2. The laser rangefinder suitable for near-Earth orbit environments according to claim 1, characterized in that, The transmitting and receiving assembly (1) includes a metal housing (11), a laser (12), an optical lens assembly (13), and a detector (14). The rear side of the metal housing (11) is flat and detachably connected to the external fixed device. The laser (12) is connected to the side of the metal housing (11). The optical lens assembly (13) is connected to the front side of the metal housing (11). The detector (14) is connected inside the metal housing (11) and located behind the optical lens assembly (13). The laser (12) and the detector (14) are electrically connected to the circuit assembly (3).

3. The laser rangefinder suitable for near-Earth orbit environments according to claim 2, characterized in that, The optical lens assembly (13) includes several optical lenses arranged sequentially along the optical path direction, and the optical lenses are made of quartz material.

4. The laser rangefinder suitable for near-Earth orbit environments according to claim 3, characterized in that, The surface of the optical lens is coated.

5. The laser rangefinder suitable for near-Earth orbit environments according to claim 2, characterized in that, The rear side of the metal housing (11) is bolted to the external fixed device by a number of fixing bolts.

6. The laser rangefinder suitable for near-Earth orbit environments according to claim 1, characterized in that, The circuit compartment (2) includes a circuit compartment body (21) and a circuit compartment cover (22). The circuit compartment body (21) is connected to the transmitter-receiver assembly (1). The circuit assembly (3) is connected inside the circuit compartment body (21). The circuit compartment cover (22) is detachably connected to the circuit compartment body (21).

7. The laser rangefinder suitable for near-Earth orbit environments according to claim 6, characterized in that, The circuit compartment cover (22) is bolted to the circuit compartment body (21) by a number of fixing bolts.

8. The laser rangefinder suitable for near-Earth orbit environments according to claim 6, characterized in that, The circuit compartment cover (22) protrudes inward along the thickness direction to form a thickened part (221) for the corresponding projection range of the components with high anti-interference requirements on the circuit assembly (3).

9. The laser rangefinder suitable for near-Earth orbit environments according to claim 1, characterized in that, It also includes a connector (4) which is connected to the circuit compartment (2) and electrically connected to the circuit assembly (3), and the other end of the connector (4) is electrically connected to an external control device.

10. The laser rangefinder suitable for near-Earth orbit environments according to claim 1, characterized in that, A filter is provided on the circuit component (3).

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