Camera with built-in lens antifogging and temperature adjusting functions

Abstract

The camera comprises a camera device body, the camera is arranged at the front end in the camera device body, a control mainboard is arranged in the middle of the camera device body, a semiconductor chilling plate is arranged at the rear end of the camera device body, and a first fin heat dissipation plate and a second fin heat dissipation plate are arranged on the inner face and the outer face of the semiconductor chilling plate respectively. The camera provided by the utility model has the following beneficial effects: 1, reliability: the camera can work for a long time, and the problem of timeliness of a drying agent does not exist; 2, adaptability: the environment adaptability is strong, and the internal dryness of the camera is not influenced by high and low external environment temperature; 3, flexibility: the internal temperature can be automatically adjusted according to the internal and external temperature difference of the camera, so that the lens is effectively prevented from fogging;

Description

Technical Field

[0001] The utility model relates to the technical field of cameras, in particular to a camera with internal lens anti-fog and temperature regulation. Background Art

[0002] Industrial cameras are widely used in various industrial scenarios. Due to the complex working environment, especially the large temperature difference between day and night in the northern region, the camera lens sometimes fogs up, affecting the quality of the monitoring image.

[0003] In order to solve this problem, the existing solution is to place a bag of silica gel desiccant inside the camera as a water vapor absorber inside the camera.

[0004] At present, silica gel desiccant is commonly used to dry the internal space of the camera. The following situations may cause the camera lens to fog:

[0005] ① Due to loopholes in warehouse management, expired and ineffective desiccant was used in the production of finished cameras.

[0006] ② In the low temperature environment in the north, the moisture absorption efficiency of silica gel desiccant decreases or even disappears.

[0007] ③The high temperature environment in the south shortens the shelf life of silica gel desiccant, resulting in a shortened protection time.

[0008] ④ The shelf life of unopened silica gel desiccant is usually 24 months, and its moisture absorption effect will deteriorate over time.

[0009] ⑤ The aging of the desiccant outer packaging may cause the dry particles to spill inside the camera, thereby contaminating the lens. Summary of the invention

[0010] The technical problem to be solved by the utility model is to provide a camera with internal lens anti-fog and temperature regulation, which can automatically adjust the internal temperature of the camera according to the temperature difference between the inside and outside of the camera.

[0011] In order to solve the above technical problems, the technical solution adopted by the utility model is: a camera with internal lens anti-fog and temperature adjustment, including a camera device body, a camera is provided at the front end of the camera device body, a control main board is provided in the middle, and a semiconductor cooling plate is provided at the rear end of the camera device body, and a first fin heat sink and a second fin heat sink are respectively provided on the inner and outer surfaces of the semiconductor cooling plate.

[0012] Preferably, an external temperature sensor is provided on the outside of the camera body, and a built-in temperature sensor is provided on the control main board. The external temperature sensor and the built-in temperature sensor are electrically connected to the control main board, and the control main board is further electrically connected to the semiconductor cooling chip.

[0013] Preferably, a heat sink is provided on the rear side of the control main board, and a third fin heat sink is provided on the heat sink.

[0014] Preferably, the heat sink and the control main board are both arranged on the base.

[0015] The utility model provides a camera with internal lens anti-fog and temperature regulation, which has the following beneficial effects:

[0016] 1. Reliability: It can work for a long time without the problem of desiccant timeliness;

[0017] 2. Adaptability: Strong environmental adaptability, high or low temperature in the external environment will not affect the internal dryness of the camera;

[0018] 3. Flexibility: The internal temperature can be automatically adjusted according to the temperature difference inside and outside the camera, thus effectively preventing the lens from fogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the external structure of the utility model;

[0022] Figure 3 It is the structural block diagram of the control system of the utility model. DETAILED DESCRIPTION

[0023] like Figure 1-2 As shown, the camera with built-in lens anti-fog and temperature regulation includes a camera device body 1, a camera 1 is provided at the front end of the camera device body 1, a control main board 2 is provided in the middle, a semiconductor cooling plate 3 is provided at the rear end of the camera device body 1, and a first fin heat sink 4 and a second fin heat sink 5 are respectively provided on the inner and outer surfaces of the semiconductor cooling plate 3.

[0024] Preferably, an external temperature sensor 6 is provided on the outside of the camera body 1, and a built-in temperature sensor 7 is provided on the control main board 2. Figure 3 As shown, the external temperature sensor 6 and the internal temperature sensor 7 are electrically connected to the control main board 2 , and the control main board 2 is further electrically connected to the semiconductor cooling sheet 3 .

[0025] Preferably, a heat sink 8 is provided on the rear side of the control main board 2 , and a third fin heat sink 9 is provided on the heat sink 8 .

[0026] Preferably, the heat sink 8 and the control main board 2 are both disposed on the base 10 .

[0027] The main executive component of this solution is the semiconductor cooling chip, the power can be selected from 5W to 10W, and the front and back sides of the semiconductor cooling chip are divided into a cooling surface and a heating surface. When the positive and negative poles of the input 12V are reversed, the original cooling surface and heating surface will be reversed accordingly. Using this characteristic of the semiconductor cooling chip, the camera can be cooled or heated, similar to a miniature home air conditioner.

[0028] The whole system has the following three working modes:

[0029] 1. Lens defog mode: When it is in the autumn and winter period in the north, the internal equipment of the camera often generates heat. At this time, the temperature inside the camera is higher than the outside. Due to the large temperature difference between the inside and outside, the camera lens glass may fog up. At this time, a semiconductor refrigeration plate is needed to turn on the cooling mode inside the camera. The first function is to condense and liquefy the water vapor inside the camera, so that it is concentrated on the surface of the radiator at the cooling end, and then use the active minerals on the surface of the radiator to absorb the condensed water to achieve internal drying. The second function is to reduce the temperature difference between the inside and outside and destroy the conditions for lens fogging.

[0030] 2. Internal cooling mode: During the hot summer in the south, the temperature inside the camera may exceed the normal temperature of the device. At this time, a semiconductor refrigeration chip is needed to cool the inside and appropriately lower the internal temperature so that the operating temperature of the device is within the normal range.

[0031] 3. Internal heating mode: When it is in the cold season in the north, the device may not start normally because the temperature is too low when it starts. At this time, it is necessary to turn on the heating mode of the semiconductor refrigeration chip (reverse the positive and negative poles of the input 12V) before starting the device to perform internal preheating before starting. After the device starts normally, the heating mode can be interrupted.

[0032] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. The camera has built-in anti-fog lens and temperature adjustment, which features: The camera device comprises a camera body (1), a camera is provided at the front end of the camera body (1), a control main board (2) is provided in the middle, a semiconductor cooling plate (3) is provided at the rear end of the camera body (1), and a first fin heat sink (4) and a second fin heat sink (5) are provided on the inner and outer surfaces of the semiconductor cooling plate (3), respectively.

2. The camera with internal lens anti-fog and temperature regulation according to claim 1, characterized in that: An external temperature sensor (6) is provided on the outside of the camera body (1), and a built-in temperature sensor (7) is provided on the control main board (2). The external temperature sensor (6) and the built-in temperature sensor (7) are electrically connected to the control main board (2), and the control main board (2) is further electrically connected to the semiconductor cooling plate (3).

3. The camera with internal lens anti-fog and temperature regulation according to claim 1, characterized in that: A heat sink (8) is provided on the rear side of the control main board (2), and a third fin heat sink (9) is provided on the heat sink (8).

4. The camera with internal lens anti-fog and temperature regulation according to claim 3, characterized in that: The heat dissipation plate (8) and the control main board (2) are both arranged on the base (10).

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