Electrostatic protection heat dissipation structure of camera shell

Abstract

The utility model provides an electrostatic protection heat dissipation structure of a camera shell, which greatly improves the electrostatic discharge immunity capability of a product, and also plays a certain role in hindering dust accumulation on the shell. According to the utility model, the camera housing is provided with heat dissipation holes; a mounting plate is fixed on the inner wall of the camera shell, and a baffle plate is fixed on the mounting plate; the baffle is suspended on the inner wall of the camera shell, a gap is formed between the baffle and the inner wall of the camera shell, the baffle shields the heat dissipation holes in the depth direction of the heat dissipation holes, and the heat dissipation holes are communicated with the interior of the camera shell through the gap.

Description

Technical Field

[0001] The utility model relates to an electrostatic protection and heat dissipation structure for a camera housing, which is mainly used for digital video cameras. Background Art

[0002] In existing conference and education digital video cameras, the housing of the close-up lens (main lens) mainly adopts a plastic structure. Since there are heat-generating components such as the Sensor board, drive board, and motor in the lens, for heat dissipation considerations, it cannot be completely enclosed, and heat dissipation holes need to be provided. Currently, in conference and education camera products, the plastic lens barrels commonly used have multiple holes in a single layer in a circular shape at the tail. When the electrostatic level increases (such as 15 kV for air discharge), it will directly hit the vertical motor, resulting in abnormal function of the vertical motor. With the increasing attention of customers to electromagnetic compatibility and the wide demand for domestic and foreign certifications, combined with the trend of lens miniaturization, the electrostatic problem of the heat dissipation holes has become increasingly prominent. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies existing in the prior art, and provide an electrostatic protection and heat dissipation structure for a camera housing with a reasonable structural design, which greatly improves the electrostatic discharge immunity of the product, and at the same time plays a certain role in preventing dust from accumulating on the housing.

[0004] The technical solution adopted by the utility model to solve the above problems is: an electrostatic protection and heat dissipation structure for a camera housing, in which heat dissipation holes are provided on the camera housing, and it is characterized in that: a mounting plate is fixed on the inner wall of the camera housing, and a baffle is fixed on the mounting plate; the baffle is suspended on the inner wall of the camera housing, there is a gap between the baffle and the inner wall of the camera housing, and the baffle blocks the heat dissipation holes in the depth direction of the heat dissipation holes, and the heat dissipation holes communicate with the inside of the camera housing through the gap.

[0005] The baffle of the utility model completely blocks the heat dissipation holes in the depth direction of the heat dissipation holes.

[0006] Both the mounting plate and the baffle of the utility model are made of plastic.

[0007] The positions of the heat dissipation holes and the baffle of the utility model are in front of the main chip of the Sensor board or the motor.

[0008] There are multiple heat dissipation holes in the utility model, which are arranged in a staggered manner.

[0009] The number of baffles in the utility model matches the number of heat dissipation holes, one heat dissipation hole matches one baffle, and all the baffles are arranged in a staggered manner.

[0010] The heat dissipation holes of the utility model are kidney-shaped.

[0011] The shape of the baffle described in the present utility model matches the shape of the heat dissipation holes, and the baffle is waist-shaped.

[0012] Compared with the prior art, the present utility model has the following advantages and effects:

[0013] 1. It improves or even solves the problem that the original product has weak electrostatic immunity ability in the heat dissipation holes of the lens barrel. 2. It avoids the problem that users can directly see the internal circuit board from the outer shell and improves the dust-proof ability to a certain extent. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of an embodiment of the present utility model.

[0015] Figure 2 is a schematic partial structural diagram of an embodiment of the present utility model.

[0016] Figure 3 and Figure 4 are both schematic structural diagrams of the heat dissipation holes and the baffle in the embodiment of the present utility model. Detailed Embodiments

[0017] The present utility model will be further described in detail below in conjunction with the drawings and through embodiments. The following embodiments are explanations of the present utility model, and the present utility model is not limited to the following embodiments.

[0018] In the embodiment of the present utility model, heat dissipation holes 2 are provided on the camera housing 1. There are multiple heat dissipation holes 2, which are arranged in a staggered manner. The heat dissipation holes 2 are waist-shaped. A mounting plate 3 is fixed on the inner wall of the camera housing 1. The mounting plate 3 is located near the heat dissipation holes 2, and a baffle 4 is fixed on the mounting plate 3.

[0019] The baffle 4 is suspended on the inner wall of the camera housing 1. There is a gap between the baffle 4 and the inner wall of the camera housing 1, and the baffle 4 completely blocks the heat dissipation holes 2 in the depth direction of the heat dissipation holes 2. The heat dissipation holes 2 communicate with the inside of the camera housing 1 through the gap, and the gap is used for air circulation to achieve heat dissipation. The number of baffles 4 matches the number of heat dissipation holes 2. One heat dissipation hole 2 is matched with one baffle 4, and all the baffles 4 are arranged in a staggered manner. The shape of the baffle 4 matches the shape of the heat dissipation holes 2, and the baffle 4 is waist-shaped.

[0020] The theoretical protection distance for air discharge is as follows: 6 mm can withstand air discharge of ±8 kV, and 10 mm can withstand air discharge of ±15 kV. Increasing the static electricity discharge distance and adding obstacles on the discharge path can effectively improve the static electricity immunity. Therefore, the above structure of the present utility model has the following functions: (1) It changes from the original vertical static electricity discharge path to an inclined discharge path. The static electricity absorbed near the heat dissipation hole 2 will be reflected by the baffle 4, and then penetrate the air in a turning or inclined direction and be released to the metal components on the circuit board. However, the static electricity energy has been greatly weakened at this time. (2) The user cannot see the internal circuit board through the heat dissipation hole 2 from the vertical direction with the naked eye, but can see the internal circuit board at a specific inclination angle.

[0021] The mounting plate 3 and the baffle 4 are both made of plastic, which is beneficial for reflecting static electricity. The positions of the heat dissipation hole 2 and the baffle 4 can be selected according to the actual heat dissipation requirements and the test results of the temperature rise test, such as in front of the main chip of the Sensor board or the motor.

[0022] In addition, it should be noted that for the specific embodiments described in this specification, the shapes and names of their components can be different. The above content described in this specification is only an example of the structure of the present utility model. Any equivalent changes or simple changes made according to the structure, features, and principles described in the patent concept of the present utility model are included in the protection scope of the patent of the present utility model.

Claims

1. The camera housing electrostatic protection heat dissipation structure has heat dissipation holes on the camera housing, and is characterized by: A mounting plate is fixed on the inner wall of the camera housing, and a baffle is fixed on the mounting plate; the baffle is suspended on the inner wall of the camera housing, a gap is provided between the baffle and the inner wall of the camera housing, and the baffle blocks the heat dissipation hole in the depth direction of the heat dissipation hole, and the heat dissipation hole is communicated with the interior of the camera housing through the gap.

2. The camera housing electrostatic protection and heat dissipation structure according to claim 1, characterized in that: The baffle completely blocks the heat dissipation hole in the depth direction of the heat dissipation hole.

3. The camera housing electrostatic protection and heat dissipation structure according to claim 1, characterized in that: The mounting plate and the baffle are both made of plastic.

4. The camera housing electrostatic protection and heat dissipation structure according to claim 1, characterized in that: The heat dissipation holes and the baffle are located right in front of the main chip or the motor of the sensor board.

5. The camera housing electrostatic protection and heat dissipation structure according to claim 1, characterized in that: There are multiple heat dissipation holes arranged in a staggered manner.

6. The camera housing electrostatic protection and heat dissipation structure according to claim 5, characterized in that: The number of baffles matches the number of heat dissipation holes, one heat dissipation hole matches one baffle, and all the baffles are arranged in a staggered manner.

7. The camera housing electrostatic protection and heat dissipation structure according to claim 1, characterized in that: The heat dissipation hole is waist-shaped.

8. The camera housing electrostatic protection and heat dissipation structure according to claim 7, characterized in that: The shape of the baffle plate matches the shape of the heat dissipation hole, and the baffle plate is waist-shaped.

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