Frost and fog prevention structure for camera of cold storage forklift
By designing an anti-frost and fog structure connected to the lifting mechanism on the forklift camera, and utilizing the airflow and dehumidification structure generated by the forklift movement, the problem of frost and fog formation on the camera in the cold storage environment is solved, achieving uniform heating and dehumidification and ensuring clear imaging from the camera.
Patent Information
- Application Number
- CN202520407013.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-10
Smart Images

Figure CN223843838U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forklift camera technology, specifically to an anti-frost and fog structure for a cold storage forklift camera. Background Technology
[0002] Cold storage temperatures are typically very low, which can cause the performance of electronic components inside cameras to degrade or even fail. Additionally, the low temperatures can cause frost to form on the camera lens surface, severely impacting image quality. Forklifts entering and exiting cold storage experience significant temperature changes. These temperature fluctuations can cause fogging on the camera lens surface, further affecting image quality. Furthermore, cold storage typically maintains high humidity to preserve food and other goods, but this humid environment can also exacerbate frost or fogging problems on camera lenses.
[0003] Existing technologies often use heating modules to increase the surface temperature of the camera and prevent fogging and frost. However, this method can only heat the areas with heating modules locally, resulting in limited defrosting and fogging effects. In other areas without heating structures, the temperature changes are poor, leading to uneven heating of the camera and potentially damaging the equipment. Summary of the Invention
[0004] (I) Technical problem to be solved: In view of the shortcomings of the existing technology, this utility model provides a frost and fog prevention structure for cold storage forklift cameras. It has the advantage of taking advantage of the lifting and lowering characteristics of forklifts and using the airflow generated by the displacement during the movement to diffuse the heat generated by the heating module to the surface of the camera. This solves the problems of uneven heating and camera overheating in local areas that can lead to damage in the existing technology.
[0005] (II) Technical Solution: To achieve the above-mentioned purpose of utilizing the lifting and lowering characteristics of forklifts and using the airflow generated by the displacement during movement to diffuse the heat generated by the heating module to the camera surface, this utility model provides the following technical solution: a cold storage forklift camera anti-frost and fog structure, connected to the forklift lifting structure and moving together with the lifting structure. The structure includes a camera and a protective shell. The camera's shooting surface faces the working surface of the forks below. The camera is installed inside the protective shell. The lower surface of the protective shell is made of transparent material. The lower surface of the protective shell is designed with at least two air holes evenly distributed along the edge. A heating wire is provided inside the protective shell. The heating wire is connected to the circuit of the forklift on which the structure is installed. The position of the heating wire corresponds to the air holes and is evenly distributed around the edge of the lower surface of the protective shell.
[0006] Preferably, the pores are provided with a dehumidification structure.
[0007] Preferably, the outer surface of the dehumidification structure has at least one hole, the interior of the dehumidification structure is hollow, and the hollow part of the dehumidification structure stores a desiccant.
[0008] Preferably, the desiccant is activated carbon desiccant or silica gel desiccant.
[0009] Preferably, the entire protective shell is made of transparent material.
[0010] Preferably, the protective housing is sealed at the connection points with the camera and the forklift lifting structure.
[0011] (III) Beneficial Effects: Compared with the prior art, this utility model provides a frost-proof and fog-proof structure for cold storage forklift cameras, which has the following beneficial effects:
[0012] 1. The anti-frost and fog structure of this cold storage forklift camera is achieved by designing at least two air holes and heating wires evenly distributed along the edge of the lower surface of the protective shell. The heating wires are located inside the protective shell and are connected to the circuitry of the forklift on which the structure is installed. They utilize the forklift's own electrical energy to generate heat. The positions of the heating wires correspond to the air holes and are evenly distributed along the edge of the lower surface of the protective shell. These air holes not only help balance the air pressure inside and outside the protective shell, but also, when the lifting mechanism is working, utilize the characteristic that the camera moves with the lifting mechanism. The air passing through the air holes during downward movement forms a wind blowing towards the camera surface. Since the working heating wires are positioned corresponding to the air holes, the wind blowing towards the camera surface becomes hot air after passing through the heating wires, evenly dispersing the heat to the camera lens surface and preventing fog condensation. Without the need to add additional blowing equipment, it avoids local heat accumulation and makes the heat distribution more uniform.
[0013] 2. The anti-frost and fog structure of this cold storage forklift camera is achieved by setting a dehumidification structure inside the air vent. The outer surface of the dehumidification structure has at least one hole to allow airflow. The dehumidification structure is hollow and contains a desiccant (such as activated carbon desiccant or silica gel desiccant). All air that is about to enter the protective shell must pass through the internal space containing the desiccant to absorb any moisture that may enter the protective shell, ensuring that the air inside the protective shell is dry and preventing water vapor from condensing into fog and frost. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall camera facing upwards structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the present invention when it is installed on a forklift and facing normally.
[0016] Figure 3 This is a partially enlarged schematic diagram of the cross-sectional structure and dehumidification structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the lower surface and heating wire of this utility model.
[0018] In the diagram: 1. Camera; 2. Protective casing; 21. Vent; 211. Dehumidification structure; 212. Desiccant; 3. Heating wire. Detailed Implementation
[0019] 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.
[0020] Please see Figures 1-4 A frost-proof and fog-proof structure for a cold storage forklift camera is disclosed, which is connected to the forklift's lifting structure and moves vertically together with the lifting structure. The structure includes a camera 1 and a protective housing 2. The camera 1 faces the working surface of the lower forks and is installed inside the protective housing 2. The two are connected by threads or a mounting bracket. The lower surface of the protective housing 2 is made of transparent material. In this embodiment, the entire protective housing 2 is made of transparent material to ensure that the camera 1 can capture the goods on the lower forks. The lower surface of the protective housing has at least two air holes 21 evenly distributed along the edge; in this embodiment, there are 16. The design ensures that the air holes 21 do not affect the image captured by the camera 1. A heating wire 3 is installed inside the protective housing. In this embodiment, an electric heating wire 3 is used. The heating wire 3 is connected to the forklift's electrical circuit and is heated using the forklift's power supply. The heating wire 3 is connected to the protective housing by a fixing structure or glue. On the inner surface of the shell 2, the heating wire 3 is positioned corresponding to the air vent 21, ensuring that all air entering the interior space of the protective shell 2 through the air vent 21 passes through the heating wire 3. The heating wire 3 is evenly distributed around the lower surface of the protective shell, similar to the air vent 21, to avoid affecting the image captured by the camera 1. Except for the air vent 21, the connection between the protective shell 2 and the camera 1 and the forklift lifting structure is sealed. These air vents 21 not only help balance the air pressure inside and outside the protective shell, but also, when the lifting mechanism is working, utilize the characteristic that the camera 1 moves with the lifting mechanism. The air passing through the air vent 21 during downward movement forms a wind blowing towards the surface of the camera 1. Since the working heating wire 3 corresponds to the position of the air vent 21, the wind blowing towards the surface of the camera 1 passes through the heating wire 3 and becomes hot air, evenly dispersing the heat to the surface of the camera 1 lens, preventing fogging. Without the need for additional blowing equipment, local heat accumulation is avoided, resulting in a more uniform heat distribution.
[0021] Please see Figure 3 The vent 21 has a dehumidification structure 211 inside; the outer surface of the dehumidification structure 211 has at least one hole to ensure that gas can pass through. The dehumidification structure 211 is hollow inside, and the hollow part inside the dehumidification structure 211 stores a desiccant 212. In actual use, it is necessary to ensure that the desiccant 212 will not fall out of the hole. In this embodiment, the desiccant 212 is activated carbon desiccant 212 or silica gel desiccant 212. All the air that is about to enter the protective shell 2 must pass through the internal space containing the desiccant 212 to absorb the moisture that may enter the protective shell, so as to ensure that the air inside the protective shell 2 is dry and prevent water vapor from condensing into fog and frost.
[0022] Working principle: The device is installed on the lifting structure of the forklift. The camera 1 is aimed at the surface of the lower forks. Therefore, when the camera 1 moves with the lifting structure, the cold air from the outside passes through the air hole 21 and is dehumidified by the dehumidifier, becoming dry air. This dry air is then blown over the heating wire 3 and finally blown onto the outer surface of the downward-facing camera 1, keeping the camera 1 in a warm and dry environment. This prevents frost or fog from forming on the outer surface of the camera 1, ensuring that the camera 1 always maintains a clear field of view and stable performance.
[0023] In summary, the anti-frost and fog structure of the cold storage forklift camera avoids localized heat accumulation and makes the heat distribution more even without the need for additional air blowing equipment; and the combination of the air vent 21 and the dehumidification structure 211 can reduce the humidity inside the protective shell 2, reduce the water content in the air, and prevent fog formation.
[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A frost-proof and fog-proof structure for a cold storage forklift camera, connected to the forklift lifting structure and moving together with the lifting structure, the structure comprising a camera (1) and a protective housing (2), wherein the camera (1) faces downward toward the working surface of the forks, the camera (1) is installed inside the protective housing (2), and the lower surface of the protective housing (2) is made of a transparent material, characterized in that: The lower surface of the protective shell is designed with at least two air holes (21) evenly distributed along the edge. The interior of the protective shell is provided with a heating wire (3). The heating wire (3) is positioned corresponding to the air holes (21) and is evenly distributed along the edge of the lower surface of the protective shell.
2. The anti-frost and fog structure for the cold storage forklift camera according to claim 1, characterized in that: The vent (21) is equipped with a dehumidification structure (211).
3. The anti-frost and fog structure for cold storage forklift cameras according to claim 2, characterized in that: The dehumidification structure (211) has at least one hole on its outer surface. The dehumidification structure (211) is hollow inside and contains a desiccant (212) in the hollow part inside.
4. The anti-frost and fog structure for cold storage forklift cameras according to claim 3, characterized in that: The desiccant (212) is activated carbon desiccant (212) or silica gel desiccant (212).
5. The anti-frost and fog structure for cold storage forklift cameras according to any one of claims 1-4, characterized in that: The protective shell (2) is made entirely of transparent material.
6. The anti-frost and fog structure for cold storage forklift cameras according to any one of claims 1-4, characterized in that: The protective shell (2) is sealed at the connection points with the camera (1) and the forklift lifting structure.