A high-precision portable north seeker
By incorporating heat-conducting fins and an external cooling mechanism into the north-finding instrument, the problem of vibration from the cooling fan was solved, achieving efficient heat dissipation and stable operation of the high-precision, lightweight north-finding instrument.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI QUANXIN PRECISION WORK EQUIP
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-19
AI Technical Summary
The existing north-finding instrument's heat dissipation device, through the vibration caused by the cooling fan, affects the normal operation of the device, resulting in a decrease in accuracy and stability.
Heat is dissipated using heat-conducting fins and cooled by an external cooling mechanism, including components such as a coolant tank, cooling pipes, pumps, and semiconductor refrigeration chips, to avoid the impact of vibration on the north-finding instrument.
It achieves efficient heat dissipation, ensuring the accuracy and stability of the north-finding instrument and avoiding interference from the vibration of the cooling mechanism.
Smart Images

Figure CN224382497U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of north-finding instrument technology, specifically a high-precision and lightweight north-finding instrument. Background Technology
[0002] A gyro north finder, also known as a gyro compass, integrates a high-precision gyroscope. Based on the gyroscope's fixed-axis property, it can be used to sense the horizontal component of the Earth's rotation angular rate, thereby measuring the true north direction of a point. Therefore, gyro north finders are often used in mining surveying, tunnel breakthrough, positioning and orientation measurements, and other applications.
[0003] Currently, in order to dissipate heat from the motor and other equipment inside the north-finding instrument, heat dissipation slots are usually opened on the side wall of the dustproof device of the north-finding instrument, and cooling fans are used to drive airflow for heat dissipation. Since the north-finding instrument itself uses the rotation of a gyroscope for detection, the vibration generated by the external cooling fan when it is working will affect the normal operation of the north-finding instrument. Therefore, a high-precision and lightweight north-finding instrument is proposed. Utility Model Content
[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract, and the title, and such simplifications or omissions should not be used to limit the scope of this utility model.
[0005] In view of the problems mentioned above and / or existing north-finding instruments, this utility model is proposed.
[0006] Therefore, the purpose of this utility model is to provide a high-precision and lightweight north finder, which uses heat-conducting fins to conduct heat out of the north finder and uses a cooling mechanism to cool the heat-conducting fins, including the cooling effect. The cooling mechanism is located outside the north finder to avoid the vibration generated by the cooling mechanism during operation from affecting the normal operation of the north finder.
[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0008] A high-precision, lightweight north-finding instrument, comprising:
[0009] The main body of the north-finding instrument includes an outer shell and heat-conducting grooves, wherein the sidewalls of the outer shell are provided with uniformly distributed heat-conducting grooves;
[0010] Heat-conducting fins are connected to the heat-conducting groove;
[0011] A cooling mechanism is connected to the outer end of the heat-conducting fins.
[0012] As a preferred embodiment of the high-precision and lightweight north-finding instrument described in this utility model, the heat-conducting fins are I-shaped fins, and the heat-conducting fins are connected to the inner and outer sides of the outer shell.
[0013] As a preferred embodiment of the high-precision and lightweight north-finding instrument described in this utility model, the cooling mechanism includes a coolant tank, a cooling pipe, an inlet pipe, a pump, and a heat exchange tank. The cooling pipe is connected to the side wall of the coolant tank and is coiled between the heat-conducting fins. An inlet pipe and a pump are provided at one end of the cooling pipe connected to the coolant tank.
[0014] As a preferred embodiment of the high-precision and lightweight north-finding instrument described in this utility model, the inlet pipe is provided with a mixing mechanism, which includes a rotating shaft, an impeller and stirring blades. The rotating shaft is rotatably connected inside the inlet pipe, with an impeller located inside the inlet pipe at one end of the rotating shaft and stirring blades located inside the coolant tank at the other end of the rotating shaft.
[0015] In a preferred embodiment of the high-precision and lightweight north-finding instrument described in this utility model, a heat exchange tank is provided on the top of the coolant tank, and a refrigeration component is connected to the heat exchange tank.
[0016] As a preferred embodiment of the high-precision and lightweight north-finding instrument described in this utility model, the cooling component includes a semiconductor cooling chip and heat exchange fins. The cooling end of the semiconductor cooling chip is connected to the uniformly distributed heat exchange fins, and the heat exchange fins extend into the coolant tank through a heat exchange groove.
[0017] In a preferred embodiment of the high-precision, lightweight north-finding instrument described in this utility model, a heat-conducting medium is filled between the heat-conducting fins and the cooling pipe.
[0018] Compared with the prior art, this utility model provides heat-conducting fins on the side wall of the north-finding instrument's outer shell, and connects a cooling mechanism to the heat-conducting fins. The heat inside the north-finding instrument is discharged through the heat-conducting fins, and the heat-conducting fins are cooled by the cooling mechanism, including the cooling effect. The cooling mechanism is located outside the north-finding instrument to avoid the vibration generated by the cooling mechanism during operation from affecting the normal operation of the north-finding instrument. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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. Among them:
[0020] Figure 1This is a schematic diagram of the axonal structure of the present invention;
[0021] Figure 2 This is a schematic diagram of the internal structure of the coolant tank of this utility model;
[0022] Figure 3 This is a schematic diagram of the main structure of the north-finding instrument of this utility model;
[0023] Figure 4 This is a schematic diagram of the heat-conducting fin structure of this utility model;
[0024] Figure 5 This is a schematic diagram of the cooling mechanism of this utility model;
[0025] Figure 6 This is a schematic diagram of the hybrid mechanism structure of this utility model;
[0026] Figure 7 This is a schematic diagram of the structure of the refrigeration component of this utility model.
[0027] In the diagram: 100 North-finding instrument body, 110 outer shell, 120 heat conduction groove, 200 heat conduction fins, 300 cooling mechanism, 310 coolant tank, 320 cooling pipe, 330 liquid inlet pipe, 340 pump, 350 heat exchanger, 400 mixing mechanism, 410 rotating shaft, 420 impeller, 430 stirring blades, 500 refrigeration components, 510 semiconductor refrigeration chip, 520 heat exchange fins. Detailed Implementation
[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0032] This invention provides a high-precision, lightweight north-finding instrument. It uses heat-conducting fins to dissipate heat from the instrument's interior, and a cooling mechanism cools these fins. The cooling mechanism is located externally to prevent vibrations generated during operation from affecting the instrument's normal operation. Please refer to [link to relevant documentation]. Figures 1-7 It includes: the north-finding instrument body 100, the heat-conducting fins 200, and the cooling mechanism 300.
[0033] The north-finding instrument body 100 includes an outer shell 110 and heat conduction grooves 120, with uniformly distributed heat conduction grooves 120 formed on the side wall of the outer shell 110;
[0034] Among them, the north-finding instrument body 100 adopts a high-precision and lightweight north-finding instrument, and uniformly distributed heat-conducting grooves 120 are set on the outer shell 110 of the north-finding instrument body 100.
[0035] The heat-conducting fins 200 are connected to the heat-conducting groove 120. Specifically, the heat-conducting fins 200 are I-shaped fins. The heat-conducting fins 200 are connected to the inner and outer sides of the outer shell 110. The heat inside the outer shell 110 of the north-finding instrument body 100 is discharged through the heat-conducting fins 200.
[0036] The cooling mechanism 300 is connected to the outer end of the heat-conducting fins 200. Specifically, the cooling mechanism 300 includes a coolant tank 310, a cooling pipe 320, an inlet pipe 330, a pump 340, and a heat exchange tank 350. The side wall of the coolant tank 310 is connected to the cooling pipe 320, which is coiled between the heat-conducting fins 200. The end of the cooling pipe 320 connected to the coolant tank 310 is provided with an inlet pipe 330 and a pump 340.
[0037] Coolant is added to the coolant tank 310, and pump 340 draws out the coolant, so that the coolant circulates between the coolant tank 310 and the cooling pipe 320. The circulating coolant carries away the heat of the heat-conducting fins 200 and dissipates heat from the heat-conducting fins 200.
[0038] Since the coolant will re-enter the coolant tank 310 after its temperature rises, resulting in uneven heat distribution, a mixing mechanism 400 is provided inside the inlet pipe 330. The mixing mechanism 400 includes a rotating shaft 410, an impeller 420, and a stirring blade 430. The rotating shaft 410 is rotatably connected inside the inlet pipe 330. One end of the rotating shaft 410 is provided with the impeller 420 located inside the inlet pipe 330, and the other end of the rotating shaft 410 is provided with the stirring blade 430 located inside the coolant tank 310.
[0039] During the flow of liquid, the impeller 420 drives the rotating shaft 410 to rotate, and the rotating shaft 410 drives the stirring blades 430 to rotate, thus mixing the internal coolant and distributing the heat evenly.
[0040] Since the coolant temperature will rise after use, affecting the cooling effect, a heat exchange tank 350 is provided on the top of the coolant tank 310. A refrigeration component 500 is connected to the heat exchange tank 350. The refrigeration component 500 includes a semiconductor refrigeration chip 510 and heat exchange fins 520. The refrigeration end of the semiconductor refrigeration chip 510 is connected to the evenly distributed heat exchange fins 520. The heat exchange fins 520 extend into the interior of the coolant tank 310 through the heat exchange tank 350.
[0041] Among them, the semiconductor cooling chip 510 cools the coolant through the heat exchange fins 520 to ensure the cooling effect.
[0042] A heat-conducting medium is filled between the heat-conducting fins 200 and the cooling pipes 320 to ensure heat conduction and heat exchange effect.
[0043] In practical use, the heat inside the outer shell 110 of the north-finding instrument body 100 is dissipated through the heat-conducting fins 200, and the pump 340 draws out the internal coolant, so that the coolant circulates between the coolant tank 310 and the cooling pipe 320. The circulating coolant carries away the heat from the heat-conducting fins 200, thus dissipating heat from the heat-conducting fins 200. When the liquid flows, the impeller 420 drives the rotating shaft 410 to rotate, and the rotating shaft 410 drives the stirring blade 430 to rotate, thus mixing the internal coolant and distributing the heat evenly. After the coolant temperature rises, the semiconductor refrigeration chip 510 cools the coolant through the heat exchange fins 520 to ensure the cooling effect.
[0044] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A high-precision, lightweight north-finding instrument, characterized in that, include: The north-finding instrument body (100) includes an outer shell (110) and heat-conducting grooves (120), wherein the outer shell (110) has uniformly distributed heat-conducting grooves (120) on its sidewall; Heat-conducting fins (200) are connected to the heat-conducting groove (120); A cooling mechanism (300) is connected to the outer end of the heat-conducting fins (200).
2. The high-precision, lightweight north-finding instrument according to claim 1, characterized in that, The heat-conducting fins (200) are I-shaped fins, and the heat-conducting fins (200) are connected to the inner and outer sides of the outer shell (110).
3. The high-precision, lightweight north-finding instrument according to claim 1, characterized in that, The cooling mechanism (300) includes a coolant tank (310), a cooling pipe (320), an inlet pipe (330), a pump (340), and a heat exchange tank (350). The side wall of the coolant tank (310) is connected to the cooling pipe (320), which is coiled between heat-conducting fins (200). The end of the cooling pipe (320) connected to the coolant tank (310) is provided with the inlet pipe (330) and the pump (340).
4. A high-precision, lightweight north-finding instrument according to claim 3, characterized in that, The liquid inlet pipe (330) is provided with a mixing mechanism (400). The mixing mechanism (400) includes a rotating shaft (410), an impeller (420) and a stirring blade (430). The rotating shaft (410) is rotatably connected inside the liquid inlet pipe (330). One end of the rotating shaft (410) is provided with an impeller (420) located inside the liquid inlet pipe (330), and the other end of the rotating shaft (410) is provided with a stirring blade (430) located inside the coolant tank (310).
5. A high-precision, lightweight north-finding instrument according to claim 3, characterized in that, The top of the coolant tank (310) is provided with a heat exchange tank (350), and a refrigeration component (500) is connected to the heat exchange tank (350).
6. A high-precision, lightweight north-finding instrument according to claim 5, characterized in that, The refrigeration component (500) includes a semiconductor refrigeration chip (510) and heat exchange fins (520). The refrigeration end of the semiconductor refrigeration chip (510) is connected to the uniformly distributed heat exchange fins (520). The heat exchange fins (520) extend into the coolant tank (310) through the heat exchange groove (350).
7. A high-precision, lightweight north-finding instrument according to claim 2, characterized in that, The space between the heat-conducting fins (200) and the cooling pipe (320) is filled with a heat-conducting medium.