Navigation instrument with night vision function

Abstract

The utility model relates to navigation equipment technical field, concretely relates to a navigation instrument with night vision function, including navigation instrument body, the side of navigation instrument body is connected with the apron, night vision subassembly, night vision subassembly is installed in the inside of navigation instrument body, night vision subassembly is used for obtaining target scene image and carrying out display under night or low light environment, trigger subassembly, trigger subassembly is installed in the inside of navigation instrument body, trigger subassembly is used for triggering the work of night vision subassembly. Compared with the prior art, the application sets up night vision subassembly and trigger subassembly in the navigation instrument body, and cooperates with the apron that can be opened manually, makes night vision subassembly in night or low light environment can automatically pop up to the working position and stable imaging, realizes anti -fog, anti -frost and motion steady through metal heating frame, heat insulating layer and guide structure, simplifies the operation procedure, improves the convenience and reliability of night vision function's start, and prolongs the service life and energy -conserving effect of component.

Description

Technical Field

[0001] This utility model relates to the field of navigation equipment technology, and in particular to a navigation instrument with night vision function. Background Technology

[0002] Navigation instruments play a crucial role in numerous fields, including transportation, outdoor exploration, geological surveying, and military operations. They help people accurately determine their location and plan routes, providing strong support for the smooth conduct of activities. However, with the continuous expansion and increasing complexity of application scenarios, the limitations of traditional navigation instruments in nighttime or low-light environments are becoming increasingly apparent. There is an urgent need for a navigation instrument with night vision capabilities and superior performance to meet practical needs.

[0003] In low-light or nighttime environments, traditional navigation instruments rely primarily on visible light for imaging and display. Due to the weak ambient light, their cameras and other imaging components struggle to capture sufficiently clear environmental information, resulting in blurry images that fail to accurately represent the outlines and distances of surrounding objects. For example, when hiking in the wilderness at night, users using traditional navigation instruments may be unable to clearly distinguish the road ahead, obstacles, or potentially dangerous areas, significantly increasing travel risks. In nighttime driving scenarios, drivers find it difficult to accurately assess road conditions and the positions of surrounding vehicles using traditional navigation instruments, easily leading to traffic accidents. This insufficient imaging capability severely limits the application of traditional navigation instruments in scenarios such as nighttime operations, nighttime rescue, and nighttime patrols, failing to meet people's urgent need for accurate navigation in low-light environments. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a navigation instrument with night vision function to solve the problem of unclear navigation display at night or in low light environment.

[0005] To achieve the above objectives, this utility model provides a navigation instrument with night vision function, comprising: a navigation instrument body, wherein a cover plate is snapped onto one side of the navigation instrument body;

[0006] A night vision component is installed inside the navigation instrument body. The night vision component is used to acquire and display images of the target scene at night or in low-light environments.

[0007] A triggering component is installed inside the navigation instrument body and is used to trigger the operation of the night vision component.

[0008] Preferably, the night vision component includes a frame installed inside the navigation instrument body, and a night vision imaging module is provided inside the frame. The night vision imaging module is electrically connected to the control center inside the navigation instrument body through a circuit.

[0009] Preferably, a metal heating frame is provided inside the frame, and an inner light-transmitting plate and an outer light-transmitting plate are provided inside the metal heating frame. The inner light-transmitting plate and the outer light-transmitting plate are spaced apart and form an insulating cavity by sealing the edges. A metal heating frame is provided around the inner light-transmitting plate, and an electric heating element is embedded in the metal heating frame and electrically connected to the control circuit to conduct heat to the inner light-transmitting plate to prevent fogging and frost.

[0010] Preferably, the frame is provided with an inner ring segment, a heat insulation layer and an outer ring segment, the two sides of the heat insulation layer are respectively attached and connected to the inner ring segment and the outer ring segment, the night vision imaging module is disposed on the inner ring segment, and multiple heat-conducting sheets are distributed circumferentially between the outer ring segment and the metal heating frame.

[0011] Preferably, the triggering component includes a mounting base plate installed inside one side of the navigation instrument body, a plurality of guide posts fixedly installed on one side of the mounting base plate, a clamp snapped onto one side of the frame, a plurality of connecting plates fixedly installed on one side of the clamp, and the side of the guide posts away from the mounting base plate being fixedly connected to one side of the connecting plates.

[0012] Preferably, a connecting strip is fixedly installed between the two connecting plates, a mating plate is fixedly installed on one side of the connecting strip, a sliding plate is fixedly installed on one side of the mating plate, a limiting plate is fixedly installed on one side of the mounting base plate, a sliding groove is provided on one side of the limiting plate, and one end of the sliding plate away from the mating plate is slidably installed in the sliding groove.

[0013] Preferably, a power spring is sleeved on the outer side of the guide post, and the two ends of the power spring are respectively fixedly installed on one side of the connecting plate and the mounting base plate.

[0014] Preferably, a limit switch is provided on the side of the slide away from the mounting base plate.

[0015] The beneficial effects of this utility model are:

[0016] 1. This navigation instrument with night vision function, through the linkage mechanism between the trigger component and the night vision component, converts the user's opening operation into a unified trigger signal, simultaneously initiating two continuous processes: the trigger component releases the constraint, mechanically and smoothly pushing the night vision component from the storage position to the preset working position; at the instant the night vision component moves into place, the trigger component automatically triggers the limit switch, thereby conducting the control circuit and simultaneously activating the night vision imaging function and the heating and anti-fog function. The integration and linkage of mechanical movement and electronic control functions realize a one-step automated operation from "opening the cover" to "night vision function ready", improving the convenience and reliability of use.

[0017] 2. This navigation instrument with night vision function, through the setting of a trigger component, enables the night vision component to automatically pop out to the preset working position when the operator only needs to open the cover, without additional manual operation, significantly improving ease of use. At the same time, during the pop-out process, the cooperation of the guide column, connecting strip, mating plate, and slide plate and slide groove ensures the smoothness and limit accuracy of the movement of the night vision component, avoids deviation or jamming, and prevents excessive pop-out. When the slide plate triggers the limit switch, it can automatically conduct the control circuit, start the electric heating element embedded in the metal heating frame to heat synchronously, so that the night vision function is reliably activated when the component is in place, ensuring immediacy and stability during nighttime use. In addition, when the night vision function is not needed, the night vision component can be retracted and reset by pressing the connecting strip and protected by the cover plate. It realizes the integrated functions of automatic pop-out, limit protection, synchronous heating and safe retraction of the night vision component, thereby improving the intelligence, reliability and service life of the device.

[0018] 3. This navigation instrument with night vision function, by being equipped with a night vision component, activates an electric heating element when the operator manually opens the cover and the night vision component pops out to the preset working position. The heating element heats the metal heating frame, and the heat is conducted to the inner light-transmitting plate via a heat-conducting sheet, completing preheating before fog formation. Specifically, a power spring releases its elastic potential energy to push the connecting plate, causing the clamps and frame to move outwards, automatically popping the night vision component to the working position. The night vision imaging module receives control signals, collects low-light or infrared signals to generate an image, and the electric heating element supplies heat to the metal heating frame. The heat frame conducts heat to the inner light-transmitting panel and maintains a uniform temperature through the heat insulation layer and the heat-insulating cavity, preventing fogging or frost formation. The guide column, slide plate, and slide groove provide precise guidance and limit for the movement of the night vision component, ensuring its smooth and reliable extension and retraction. With the cooperation of the above structures, the navigation instrument can still clearly display surrounding objects and environmental information in low light or nighttime environments, realize the automatic activation and safe retraction of the night vision component, avoid blurry images and cumbersome operation, and extend the life of the night vision component and save energy through the heat insulation and heating structure, improving ease of use and reliability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a schematic diagram showing the disassembled structure of the trigger component of this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A

[0025] Figure 6 This is a schematic diagram showing the disassembled structure of the night vision component of this utility model.

[0026] The diagram is marked as follows:

[0027] 1. Navigation instrument body; 2. Cover plate; 3. Mounting base plate; 4. Power spring; 5. Guide column; 6. Limiting plate; 7. Slide groove; 8. Clamp; 9. Connecting strip; 10. Connecting plate; 11. Mating plate; 12. Slide plate; 13. Frame; 14. Night vision imaging module; 15. Inner ring section; 16. Heat insulation layer; 17. Outer ring section; 18. Inner light-transmitting plate; 19. Outer light-transmitting plate; 20. Metal heating frame; 21. Heat-conducting sheet; 22. Limit switch. Detailed Implementation

[0028] 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 specific embodiments.

[0029] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] like Figures 1 to 5As shown, a navigation instrument with night vision function includes: a navigation instrument body 1, with a cover plate 2 snapped onto one side of the navigation instrument body 1; a night vision component, which is installed inside the navigation instrument body 1 and is used to acquire and display images of the target scene at night or in low light environments; and a trigger component, which is installed inside the navigation instrument body 1 and is used to trigger the operation of the night vision component.

[0031] When the ambient light is insufficient or nighttime operation is required, the user manually opens the cover 2. This triggers the night vision component, which is then pushed out of the main body 1 to its working position. The night vision component then enters its working state. Installed inside the main body 1, the night vision component begins to collect weak light or infrared signals from the outside after receiving power. The internal imaging conversion unit converts the acquired signals into visible image information, enabling the main body 1 to clearly display surrounding objects and environmental conditions even in low light or nighttime environments, ensuring the normal operation of the navigation function. When there is sufficient light, the trigger does not output a trigger signal, and the night vision component remains off, thus achieving energy saving and extending its service life.

[0032] like Figure 2 , Figure 3 , Figure 5 As shown, the night vision component includes a frame 13 installed inside the navigation instrument body 1. A night vision imaging module 14 is provided inside the frame 13. The night vision imaging module 14 is electrically connected to the control center inside the navigation instrument body 1 via a circuit. A metal heating frame 20 is provided inside the frame 13. An inner light-transmitting plate 18 and an outer light-transmitting plate 19 are provided inside the metal heating frame 20. The inner light-transmitting plate 18 and the outer light-transmitting plate 19 are spaced apart and form a heat-insulating cavity through edge sealing. The metal heating frame 20 is provided around the periphery of the inner light-transmitting plate 18. An electric heating element is embedded in the metal heating frame 20 and electrically connected to the control circuit to conduct heat to the inner light-transmitting plate 18 to prevent fogging and frost. An inner ring section 15, a heat insulation layer 16 and an outer ring section 17 are provided inside the frame 13. The two sides of the heat insulation layer 16 are respectively attached to the inner ring section 15 and the outer ring section 17. The night vision imaging module 14 is set on the inner ring section 15. Multiple heat-conducting sheets 21 are distributed circumferentially between the outer ring section 17 and the metal heating frame 20.

[0033] When the night vision component is working, the night vision imaging module 14 is electrically connected to the internal control center of the navigation instrument body 1 through a circuit and receives control signals to realize the imaging function. When the external ambient light is insufficient, the night vision imaging module 14 is activated to capture low light or infrared signals and output image information. At the same time, the electric heating element generates heat after being energized and conducts it to the metal heating frame 20. The metal heating frame 20 evenly conducts the heat to the inner light-transmitting plate 18, which is thermally connected to it, thereby preventing fogging or frost from forming on the surface of the inner light-transmitting plate 18 due to temperature difference, ensuring clear imaging. The heat insulation cavity formed by the edge sealing of the inner light-transmitting plate 18 and the outer light-transmitting plate 19 can reduce heat loss and play a heat preservation role. The heat insulation layer 16 set between the inner ring section 15 and the outer ring section 17 effectively blocks the heat from diffusing to the inner ring section 15. This ensures that the night vision imaging module 14, fixed on the inner ring section 15, is not affected by temperature rise during the heating and defogging process, thereby guaranteeing image quality and navigation display clarity. In addition, the heating element is set on the side of the metal heating frame 20 facing the inner light-transmitting plate 18. This side has an annular groove, in which the heating element is embedded. The heating element is a resistance heating wire or a flexible heating film, and is fixedly connected to the metal heating frame 20 by thermally conductive adhesive. The installation position of the heating element is close to the inner light-transmitting plate 18, which can better conduct heat to the inner light-transmitting plate 18 to prevent fogging and frost. Secondly, the inner light-transmitting plate 18 and the outer light-transmitting plate 19 are made of high light transmittance materials, such as optical grade polycarbonate or chemically tempered glass. Their surfaces can be coated with anti-reflective film and / or hydrophobic coating to optimize optical performance and facilitate cleaning.

[0034] like Figure 2 , Figure 4 As shown, the triggering component includes a mounting base plate 3 installed inside one side of the navigation instrument body 1. Several guide posts 5 are fixedly installed on one side of the mounting base plate 3. A clamp 8 is snapped onto one side of the frame 13. Several connecting plates 10 are fixedly installed on one side of the clamp 8. The side of the guide posts 5 away from the mounting base plate 3 is fixedly connected to one side of the connecting plates 10. A connecting strip 9 is fixedly installed between two connecting plates 10. A mating plate 11 is fixedly installed on one side of the connecting strip 9. A sliding plate 12 is fixedly installed on one side of the mating plate 11. A limit plate 6 is fixedly installed on one side of the mounting base plate 3. A groove 7 is opened on one side of the limit plate 6. The end of the sliding plate 12 away from the mating plate 11 is slidably installed in the groove 7. A power spring 4 is sleeved on the outside of the guide posts 5. The two ends of the power spring 4 are fixedly installed on one side of the connecting plate 10 and the mounting base plate 3, respectively. A limit switch 22 is provided on the side of the groove 7 away from the mounting base plate 3.

[0035] When the navigation instrument body 1 needs to be used at night, the operator only needs to manually open the cover 2. The power spring 4 releases its stored elastic potential energy under compression, pushing the connecting plate 10 to move outward. This causes the clamp 8 and frame 13, which are fixedly connected to it, to move outward as a whole, thereby automatically popping the night vision component to the preset working position. During the outward movement of the night vision component, the connecting strip 9 fixedly installed between the two connecting plates 10 provides lateral support. The mating plate 11 on the connecting strip 9 drives the sliding plate 12 fixed on one side of it to slide along the groove 7 of the limiting plate 6. The sliding mechanism within the groove 7 guides the movement of the night vision component, preventing it from shifting or jamming. Simultaneously, the groove 7 prevents the night vision component from being excessively ejected by the power spring 4. Furthermore, when the slide plate 12 reaches the top of the groove 7, it presses against the limit switch 22 located on the side of the groove 7 away from the mounting base 3. This triggers the limit switch 22, activating the control circuit connected to it, and activating the associated control device. This causes the heating element embedded inside the metal heating frame 20 to enter heating mode, achieving synchronous heating of the night vision component after it is positioned. The device opens to ensure reliable activation of the night vision function upon triggering and coordination with the navigation instrument's operation. The guide column 5, acting as a longitudinal support and limiting structure, provides sliding guidance to the connecting plate 10 during the reciprocating motion of the night vision component. Its retractable structure further ensures the stability and resetting accuracy of the night vision component during ejection and retraction, ultimately achieving automatic ejection and limiting protection of the night vision component. This allows the operator to quickly activate the night vision function without complex operations, while ensuring the component's stability and reliability in multiple trigger cycles. When the night vision function is not needed, the operator simply presses the connecting strip 9, causing the night vision component to overcome the elastic force of the power spring 4 and retract back into the navigation instrument body 1. Then, the cover plate 2 is closed to complete the storage and protection of the night vision component, thus achieving convenient activation and safe retraction. Furthermore, the device, through the cooperation of the night vision component and the triggering component, uses the opening action of the cover plate 2 as a unified trigger signal to simultaneously initiate two continuous processes: the mechanical ejection of the night vision component and the automatic activation of the heating element to heat the metal heating frame 20.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A navigation instrument with night vision function, characterized in that, include: The navigation instrument body (1) has a cover plate (2) snapped onto one side; A night vision component is installed inside the navigation instrument body (1). The night vision component is used to acquire and display images of the target scene at night or in low light environments. A triggering component is installed inside the navigation instrument body (1) and is used to trigger the operation of the night vision component.

2. The navigation instrument with night vision function according to claim 1, characterized in that, The night vision component includes a frame (13) installed inside the navigation instrument body (1), and a night vision imaging module (14) is provided inside the frame (13). The night vision imaging module (14) is electrically connected to the control center inside the navigation instrument body (1) via a circuit.

3. The navigation instrument with night vision function according to claim 2, characterized in that, The frame (13) is provided with a metal heating frame (20), and the metal heating frame (20) is provided with an inner light-transmitting plate (18) and an outer light-transmitting plate (19). The inner light-transmitting plate (18) and the outer light-transmitting plate (19) are spaced apart and form an insulating cavity by sealing the edges. The metal heating frame (20) is provided around the inner light-transmitting plate (18). The metal heating frame (20) is embedded with an electric heating element and is electrically connected to the control circuit to conduct heat to the inner light-transmitting plate (18) to prevent fogging and frost.

4. The navigation instrument with night vision function according to claim 3, characterized in that, The frame (13) is provided with an inner ring section (15), a heat insulation layer (16) and an outer ring section (17). The two sides of the heat insulation layer (16) are respectively attached to the inner ring section (15) and the outer ring section (17). The night vision imaging module (14) is disposed on the inner ring section (15). Multiple heat-conducting sheets (21) are distributed circumferentially between the outer ring section (17) and the metal heating frame (20).

5. The navigation instrument with night vision function according to claim 2, characterized in that, The triggering component includes a mounting base plate (3) installed inside one side of the navigation instrument body (1). A plurality of guide posts (5) are fixedly installed on one side of the mounting base plate (3). A clamp (8) is snapped onto one side of the frame (13). A plurality of connecting plates (10) are fixedly installed on one side of the clamp (8). The side of the guide post (5) away from the mounting base plate (3) is fixedly connected to one side of the connecting plate (10).

6. The navigation instrument with night vision function according to claim 5, characterized in that, A connecting strip (9) is fixedly installed between the two connecting plates (10). A mating plate (11) is fixedly installed on one side of the connecting strip (9). A sliding plate (12) is fixedly installed on one side of the mating plate (11). A limiting plate (6) is fixedly installed on one side of the mounting base plate (3). A sliding groove (7) is provided on one side of the limiting plate (6). The end of the sliding plate (12) away from the mating plate (11) is slidably installed in the sliding groove (7).

7. The navigation instrument with night vision function according to claim 6, characterized in that, A power spring (4) is sleeved on the outside of the guide post (5), and the two ends of the power spring (4) are respectively fixedly installed on one side of the connecting plate (10) and the mounting base plate (3).

8. The navigation instrument with night vision function according to claim 6, characterized in that, A limit switch (22) is provided on the side of the slide (7) away from the mounting base plate (3).

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