An instrument protection box
By introducing a heat dissipation system combining an exhaust fan and a semiconductor cooler into the instrument protection box, the problem of poor heat dissipation in a sealed state is solved, achieving effective heat dissipation and convenient observation window.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-19
AI Technical Summary
The existing instrument protection box suffers from poor heat dissipation due to its sealed state during use, which affects the service life of the instrument.
It adopts a combination of exhaust fan and semiconductor cooler to achieve air flow and cooling through air duct, combined with heat conduction plate to dissipate heat inside the box, and designed with an openable and closable observation window structure for easy observation and protection.
Effective heat dissipation is achieved, extending the instrument's service life, and the openable and closable observation window structure reduces dust accumulation and improves the convenience of observation.
Smart Images

Figure CN224382519U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protection box technology, specifically an instrument protection box. Background Technology
[0002] An instrument protection box is a safety protection device that can effectively protect the built-in instruments and prevent them from being damaged by external factors during use. However, current instrument protection boxes are often in a sealed state during use, which does not allow for proper heat dissipation and is detrimental to the service life of the instruments inside the box. To address the above problems, an instrument protection box is proposed. Utility Model Content
[0003] The purpose of this utility model is to provide an instrument protection box to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] An instrument protection box includes a box body and a box cover. The box body is rotatably connected to the box cover via a hinge. An air passage is provided in a groove on the back of the box body. A back plate is fixedly installed on the back of the box body by bolts. The back plate is tightly fitted to the air passage wall. An exhaust fan is fixedly installed at the air passage exhaust port on the top of the side wall of the box body by bolts. A semiconductor cooler is fixedly installed in a mounting groove on the other side of the box body. The cooling end of the semiconductor cooler extends into the air passage. An air passage inlet is provided at the bottom of the box body.
[0006] As a further embodiment of this utility model, an observation window is provided on the front wall of the box cover.
[0007] As a further improvement of this utility model: the box cover is rotatably connected to a protective cover below the observation window, the protective cover is placed on the observation window, and the box cover is fixedly installed with a snap-fit mechanism above the observation window.
[0008] As a further improvement of this utility model, a rubber ring is fixedly connected to the side of the protective cover that fits against the box cover.
[0009] As a further embodiment of this utility model: the snap-fit mechanism includes a housing, a slider is slidably connected inside the housing, a snap head is fixedly connected to the bottom of the slider, the snap head slides through the bottom of the housing, a spring is provided at the top of the slider inside the housing, a groove is provided on the front wall of the housing, a protrusion is provided in the groove, and the protrusion is fixedly connected to the slider.
[0010] As a further improvement of this utility model, the card head has a slope on the side away from the box cover.
[0011] As a further improvement of this utility model, a handle is fixedly connected to the side of the protective cover away from the observation window.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In use, the exhaust fan and the semiconductor cooler work simultaneously. The exhaust fan draws air from the air duct, and the gas in the air duct flows. Outside air enters the air duct through the air inlet. The incoming airflow is cooled by the heat exchange fins on the cooling end of the semiconductor cooler. The cooled airflow flows in the air duct, and the cold airflow cools the inside of the box by passing through the heat-conducting plate on the back of the box. This achieves cooling and heat dissipation for the instruments inside the box, which helps to extend the service life of the instruments inside the box.
[0014] 2. In use, the sliding block moves along the convex strip, and the slider, along with the locking head, retracts into the housing. The locking head separates from the protective cover. Rotating the protective cover exposes the observation window, allowing easy observation of the instrument's status inside the housing. Conversely, rotating the protective cover places it over the observation window. The spring returns to its original position, pushing the slider to move. The slider then pushes the locking head to move, causing the locking head to lock the protective cover in place, thus protecting the observation window and reducing dust accumulation on it. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of an instrument protection box.
[0016] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.
[0017] Figure 3 This is a sectional view of the back of an instrument protection box.
[0018] Figure 4 This is a front view of an instrument protection box.
[0019] In the diagram: 1. Box body; 2. Box lid; 3. Protective cover; 4. Pull handle; 5. Shell; 6. Slider; 7. Raised strip; 8. Clip; 9. Slide groove; 10. Spring; 11. Exhaust fan; 12. Back panel; 13. Air duct; 14. Semiconductor cooler; 15. Air inlet; 16. Observation window; 17. Rubber ring. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-4 In this embodiment of the utility model, an instrument protection box includes a box body 1 and a box cover 2. The box body 1 is rotatably connected to the box cover 2 by a hinge. The box body 1 has holes for installing instruments and threading wires. The plate on the back of the box body 1 is thermally conductive. An air passage 13 is provided in the groove on the back of the box body 1. A back plate 12 is fixedly installed on the back of the box body 1 by bolts. The back plate 12 is tightly fitted to the wall of the air passage 13. An exhaust fan 11 is fixedly installed at the exhaust port of the air passage 13 at the top of the side wall of the box body 1 by bolts. A semiconductor cooler 14 is fixedly installed in the mounting groove on the other side of the box body 1. The cooling end of the semiconductor cooler 14 extends into the air passage 13. An air inlet 15 of the air passage 13 is provided at the bottom of the box body 1.
[0022] During use, the exhaust fan 11 and the semiconductor cooler 14 work simultaneously. The exhaust fan 11 draws air from the air duct 13, and the gas flows in the air duct 13. Outside air enters the air duct 13 through the air inlet 15. The outside airflow is cooled by the heat exchange fins of the cooling end of the semiconductor cooler 14. The cooled airflow flows in the air duct 13. The cold airflow cools the inside of the housing 1 by passing through the heat conduction plate on the back of the housing 1, thereby cooling and dissipating heat for the instruments inside the housing 1, which helps to extend the service life of the instruments inside the housing 1.
[0023] The front wall of the cover 2 is provided with an observation window 16, which allows for easy observation of the instruments inside the box 1.
[0024] The box cover 2 is rotatably connected to a protective cover 3 below the observation window 16. The protective cover 3 covers the observation window 16. A snap-fit mechanism is fixedly installed above the observation window 16 on the box cover 2. The snap-fit mechanism includes a housing 5. A slider 6 is slidably connected inside the housing 5. A locking head 8 is fixedly connected to the bottom of the slider 6. The locking head 8 has a slope on the side away from the box cover 2. The locking head 8 slides through the bottom of the housing 5. A spring 10 is provided at the top of the slider 6 inside the housing 5. A groove 9 is opened on the front wall of the housing 5. A protrusion 7 is provided in the groove 9. The protrusion 7 is fixed to the slider 6. In operation, the slider 6 slides along the convex strip 7, causing the slider 6 to retract into the housing 5 along with the locking head 8. The locking head 8 then separates from the protective cover 3. Rotating the protective cover 3 exposes the observation window 16, allowing easy observation of the instrument status inside the housing 1. Conversely, rotating the protective cover 3 causes it to cover the observation window 16, and the spring 10 returns to its original position, pushing the slider 6 to move. The slider 6 then pushes the locking head 8 to move, causing the locking head 8 to lock the protective cover 3, thus protecting the observation window 16 and reducing dust accumulation on it.
[0025] A rubber ring 17 is fixedly connected to the side of the protective cover 3 that fits against the box cover 2. The rubber ring 17 increases the sealing between the protective cover 3 and the box cover 2 when the protective cover 3 is placed over the observation window 16, reducing the probability of dust adhering to the observation window 16 when not in use.
[0026] A handle 4 is fixedly connected to the side of the protective cover 3 away from the observation window 16, which allows the protective cover 3 to be rotated easily.
[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An instrument protection box, comprising a box body (1) and a box cover (2), characterized in that: The box body (1) is rotatably connected to the box cover (2) by a hinge. An air passage (13) is provided in the groove on the back of the box body (1). A back plate (12) is fixedly installed on the back of the box body (1) by bolts. The back plate (12) is tightly fitted to the wall of the air passage (13). An exhaust fan (11) is fixedly installed at the exhaust port of the air passage (13) at the top of the side wall of the box body (1) by bolts. A semiconductor cooler (14) is fixedly installed in the mounting groove on the other side of the box body (1). The cooling end of the semiconductor cooler (14) extends into the air passage (13). An air inlet (15) of the air passage (13) is provided at the bottom of the box body (1).
2. The instrument protection box according to claim 1, characterized in that: An observation window (16) is provided on the front wall of the box cover (2).
3. An instrument protector case according to claim 2, characterized in that: The box cover (2) is rotatably connected to a protective cover (3) below the observation window (16). The protective cover (3) is placed on the observation window (16). The box cover (2) is fixedly installed with a snap-fit mechanism above the observation window (16).
4. An instrument protector case according to claim 3, characterized in that: A rubber ring (17) is fixedly connected to the side of the protective cover (3) that is in contact with the box cover (2).
5. An instrument protector case according to claim 3, wherein: The snap-fit mechanism includes a housing (5), a slider (6) is slidably connected inside the housing (5), a snap head (8) is fixedly connected to the bottom of the slider (6), the snap head (8) slides through the bottom of the housing (5), a spring (10) is provided at the top of the slider (6) inside the housing (5), a groove (9) is provided on the front wall of the housing (5), a protrusion (7) is provided in the groove (9), and the protrusion (7) is fixedly connected to the slider (6).
6. An instrument protector case according to claim 5, wherein: The card head (8) has a slope on the side away from the box cover (2).
7. An instrument protector case according to claim 3, wherein: A handle (4) is fixedly connected to the side of the protective cover (3) away from the observation window (16).