Ventilation and heat dissipation structure of case shell of laser emission device

Abstract

The utility model provides a ventilation and heat dissipation structure for a case shell of a laser emission device, and belongs to the technical field of laser emission devices. According to the technical scheme, an upper air opening is formed in the upper portion of the side wall of a shell, a lower air opening is formed in the bottom of the shell, the upper air opening is connected with an air outlet cover, an air outlet is formed in the side wall of the air outlet cover, an air inlet grille is fixed to the lower air opening, a sliding groove is formed in one side of the lower air opening, and sliding grooves are formed in the positions, on the two sides of the lower air opening, of the shell. The sliding grooves extend to the two sides of the sliding groove, and the cover plate is connected to the sliding grooves in a sliding mode. According to the utility model, the stability and long service life of the optical lens, the integrated circuit and the control chip can be ensured while the rainproof and dustproof effects are ensured. The internal temperature of the device can be controlled according to needs, for example, heat emission is increased when the external temperature is high, heat loss is reduced when the external temperature is low, and it is ensured that the optical lens, the integrated circuit and the control chip work in a normal temperature range.

Description

Technical Field

[0001] The utility model relates to a ventilation and heat dissipation structure of a chassis shell of a laser emitting device, belonging to the technical field of laser emitting devices. Background Art

[0002] Laser emitting devices usually integrate important components or optical components such as laser optical path, automatic focusing platform, camera, etc., and are precision optical equipment. They have very high requirements for rain and dustproof levels, and the emitting device itself is required to be completely sealed. If the laser emitting device is in a completely sealed environment, heat will be generated and accumulated during long-term light emission, causing the internal temperature of the device to be too high. Excessive temperature may cause the following problems:

[0003] Mirror deformation: Mirror deformation affects focusing performance, causing beam divergence, affecting light quality, and reducing system damage capability;

[0004] Integrated circuit performance degradation: The electrical characteristics of integrated circuits are closely related to temperature. When the chip temperature rises, its resistance, capacitance and other parameters may change, resulting in a degradation of the chip's performance;

[0005] Thermal runaway: If the temperature is too high, it may cause thermal runaway of the integrated circuit, making it unable to work normally, and even burning the chip in severe cases;

[0006] Shortened lifespan: The lifespan of optical components and integrated circuits is also closely related to temperature. When the temperature is too high, it will cause problems such as material aging and thermal stress, shortening the service life.

[0007] Forced shutdown: When the temperature is too high, the system's temperature monitoring device may be triggered, causing forced shutdown and reducing the system's ability to work continuously. Utility Model Content

[0008] The utility model aims to provide a ventilation and heat dissipation structure of a chassis shell of a laser emitting device, which is not only structurally firm and not easy to separate, but also convenient to construct.

[0009] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0010] An upper air outlet is provided on the upper part of the side wall of the shell, and a lower air outlet is provided on the bottom of the shell. The upper air outlet is connected to an air outlet hood, and the side wall of the air outlet hood is provided with an air outlet. The lower air outlet is fixed with an air intake grille, and a sliding groove is provided on one side of the lower air outlet. Sliding grooves are provided on the shell on both sides of the lower air outlet. The sliding grooves extend to both sides of the sliding grooves, and the cover plate is slidably connected to the sliding grooves.

[0011] Preferably, a ventilation baffle and filter cotton are sequentially arranged at the connection between the air outlet cover and the upper air outlet.

[0012] Preferably, the air outlet hood is rotatably sleeved with an air outlet rubber sleeve, the inner wall of the air outlet rubber sleeve is provided with an annular protrusion which cooperates with the groove provided on the side wall of the air outlet hood, the side wall of the air outlet rubber sleeve is provided with a rubber sleeve air outlet, and after the air outlet rubber sleeve is sleeved on the air outlet hood, the rubber sleeve air outlet coincides with the air outlet.

[0013] Preferably, the air outlets include two, both of which are arranged below the horizontal line of the air outlet cover.

[0014] Preferably, the downwind outlet is stepped, and a movable grille is slidably fixed on a first-level stepped surface through a grille pressure plate.

[0015] Preferably, filter cotton is provided in the interlayer between the air intake grille and the movable grille.

[0016] Preferably, the upper surface of the grille pressing plate, the bottom surface of the sliding groove and the secondary step surface are in the same horizontal plane.

[0017] The advantages of the utility model are: the utility model can ensure the stability and long life of the optical lens, integrated circuit and control chip while ensuring rain and dustproof. The internal temperature of the device can be controlled as needed, such as increasing heat emission when the external temperature is high and reducing heat loss when the external temperature is low, ensuring that the optical lens, integrated circuit and control chip work within a normal temperature range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 Schematic diagram of the explosion at the upwind outlet.

[0021] Figure 3-Figure 4 Schematic diagram of an air outlet with three-state control.

[0022] Figure 5 Schematic diagram of the air outlet rubber cover.

[0023] Figure 6-Figure 8 Schematic diagram of the three states of the air outlet and the rubber sleeve.

[0024] Fig. 9 Schematic diagram of the overall appearance of the downwind outlet.

[0025] Fig.10 Schematic diagram of the explosion at the downwind outlet.

[0026] Fig.11 Schematic diagram of the air intake grille.

[0027] Fig.12 Schematic diagram of the moving grid.

[0028] Fig.13 Schematic diagram of the coordination between the air intake grille and the movable grille.

[0029] Fig.14 Schematic diagram of the metal cover in use.

[0030] Fig.15 Schematic diagram of the metal cover.

[0031] In the figure: 1, shell, 2, upper air outlet, 21, air outlet rubber sleeve, 22, ventilation baffle, 23, air outlet cover, 231, air outlet, 232, groove, 233, rubber sleeve air outlet, 3, lower air outlet, 31, air intake grille, 32, movable grille, 33, grille pressure plate, 34, cover plate, 35, sliding groove, 36, sliding slot, 4, filter cotton. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] like Figure 1 As shown, a ventilation and heat dissipation structure of the chassis shell of a laser emitting device is shown. According to the gas flow principle, the upper air vent 2 and the lower air vent 3 are respectively designed at the top and bottom of the chassis shell 1. When the air in the shell 1 is heated, it expands and rises, and can flow out from the upper air vent 2. The negative pressure causes the outside air to enter from the lower air vent 3, forming air convection. During the convection process, the heat generated in the shell is taken away, thereby achieving the purpose of cooling the inside of the shell.

[0034] The specific structure is as follows: an upper air outlet 2 is provided on the upper part of the side wall of the shell 1, and a lower air outlet 3 is provided on the bottom of the shell 1. The upper air outlet 2 is connected to an air outlet cover 23, and an air outlet 231 is provided on the side wall of the air outlet cover 23. An air intake grille 31 is fixed to the lower air outlet 3. A sliding groove 35 is provided on one side of the lower air outlet 3, and sliding grooves 36 are provided on the shell 1 on both sides of the lower air outlet 3. The sliding grooves 36 extend to both sides of the sliding grooves 35, and the cover plate 34 is slidably connected to the sliding grooves 36.

[0035] like Fig.14 and Fig.15As shown, the cover plate 34 can also be moved left and right. When air intake is required, the cover plate 34 is moved away, and the operator can adjust the movable grille 32 to adjust the size of the air inlet. When the equipment is withdrawn or air intake is not required, the cover plate 34 is pushed to the position of the sliding groove 35 to protect the internal structure of the lower air outlet, prevent hard objects from being damaged or embedded in the air outlet, and also prevent dust from entering.

[0036] The connection between the air outlet cover 23 and the upper air outlet 2 is also provided with a ventilation baffle 22 and filter cotton 4 in sequence. During ventilation, external dust is filtered to prevent external dust from entering the housing of the laser emitting device, thereby meeting the dustproof requirements of the laser emitter.

[0037] The air outlet cover 23 is rotatably sleeved with an air outlet rubber cover 21, the inner wall of the air outlet rubber cover 21 is provided with an annular protrusion which cooperates with the groove 232 provided on the side wall of the air outlet cover 23, the side wall of the air outlet rubber cover 21 is provided with a rubber cover air outlet 233, and after the air outlet rubber cover 21 is sleeved on the air outlet cover 23, the rubber cover air outlet 233 overlaps with the air outlet 231. The air outlet design of the rubber cover is completely consistent with the above-mentioned air outlet, and the rubber cover is sleeved on the outside of the air outlet when in use, and the two are used in combination to achieve a three-state control effect.

[0038] The air outlet 231 includes two, both of which are arranged below the horizontal line of the air outlet cover 23. The air outlet design has a certain rainproof ability and has three-state ventilation control. Figure 3-Figure 4 As shown, the three-state air outlet has the following characteristics:

[0039] (1) The air outlet 231 is designed to be two, namely, air outlet 1 and air outlet 2.

[0040] (2) The air outlet 1 and the air outlet 2 are designed below the horizontal line OA2. In this way, when it rains, rainwater can be prevented from falling directly into the air outlet and entering the shell 1, thereby improving the rainproof ability of the shell. Figure 4 .

[0041] (3) ∠A1OB1 and ∠A2OB2 are equal in size, but their maximum angle does not exceed 45°; OA1 passes through the center of the circle and is located in the vertical direction, and OA2 passes through the center of the circle and is located in the horizontal direction.

[0042] (4) The angles between OA1 and OA2, and between OB1 and OB2 are all 90°, that is, the sector OA2B2 can be regarded as OA1B1 rotated 90° clockwise, and the sector OA1B1 can be regarded as OA2B2 rotated 90° counterclockwise.

[0043] (5) The groove 232 is used to position and fix the air outlet rubber sleeve 21. The inner wall of the air outlet rubber sleeve 21 has a circle of protrusions corresponding to its position and size, which can be stuck on the groove 232 when in use.

[0044] In actual use, a soft air outlet rubber sleeve 21 is installed outside the air outlet 231, and the structure is as follows: Figure 5 As shown, the two have the same air outlet design, which can be adjusted by rotating the rubber sleeve. Figure 6-Figure 8 There are three states of upper air outlet air flow:

[0045] (1) When the air volume needs to be increased, align the two air outlets of the air outlet rubber sleeve 21 with the air outlet 1 and the air outlet 2, such as Figure 6 ;

[0046] (2) When the air volume needs to be reduced, rotate the rubber sleeve to cover one air outlet and keep only one air outlet. Figure 7 ;

[0047] (3) When air is not needed, rotate the rubber cover to cover both air outlets and close the upper air outlet. Figure 8 .

[0048] The rubber sleeve is easy to adjust, and the operator can adjust it according to actual conditions such as seasonal changes, temperature changes, sunny and rainy weather, etc., without the need for any tools.

[0049] Overall appearance of downwind outlet Figure 9-10 The downwind port is designed at the bottom of the laser emitting device housing 1 and is also specially designed so that the operator can adjust the air intake of the downwind port 3 .

[0050] The lower air outlet 3 is stepped, and a movable grille 32 is slidably fixed on the first step surface through a grille pressing plate 33. The movable air intake grille 32 is movable and is related to the air intake grille 31 in design. By adjusting the relative position of the two, the size of the air intake area can be adjusted or the lower air outlet can be closed.

[0051] The structure of the air intake grille 31 and the movable grille 32 is as follows: Fig.11 and Fig.12 As shown, the usage status is as follows Fig.13 As shown, the white part between the two is the ventilation grille. When the ventilation volume of the lower air outlet 3 is the largest, the ventilation grilles of the air intake grille 31 and the movable grille 32 completely overlap, and the ventilation area is the largest; when the movable grille 32 is pushed to the right, the overlapping area of ​​the two ventilation grilles decreases, and the ventilation volume decreases; when the movable grille 32 continues to be pushed to the right, the two ventilation grilles are completely blocked by each other, which is equivalent to the ventilation port being closed, thereby forming an adjustable ventilation port that can be adjusted arbitrarily between open and closed, which can be coordinated with the three-state ventilation of the upper air outlet 3 to conveniently control the ventilation and heat dissipation of the laser emitting device chassis, while also ensuring a certain degree of rain and dustproof capabilities.

[0052] The interlayer between the air intake grille 31 and the movable grille 32 is provided with filter cotton 4. The main function is to filter external dust during ventilation to prevent external dust from entering the laser emitting device housing 1, thereby meeting the dustproof requirements of the laser emitter.

[0053] The upper surface of the grille pressing plate 33, the bottom surface of the sliding groove 35 and the secondary step surface are in the same horizontal plane.

[0054] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A ventilation and heat dissipation structure of a chassis shell of a laser emitting device, characterized in that: An upper air outlet (2) is provided at the upper portion of the side wall of the shell (1), and a lower air outlet (3) is provided at the bottom of the shell (1); the upper air outlet (2) is connected to an air outlet cover (23); an air outlet (231) is provided on the side wall of the air outlet cover (23); an air intake grille (31) is fixed to the lower air outlet (3); a sliding groove (35) is provided on one side of the lower air outlet (3); sliding grooves (36) are provided on the shell (1) at both sides of the lower air outlet (3); the sliding grooves (36) extend to both sides of the sliding grooves (35); and a cover plate (34) is slidably connected to the sliding grooves (36).

2. The ventilation and heat dissipation structure of the chassis shell of the laser emitting device according to claim 1 is characterized in that: A ventilation baffle (22) and filter cotton (4) are also arranged in sequence at the connection between the air outlet cover (23) and the upper air outlet (2).

3. The ventilation and heat dissipation structure of the chassis shell of the laser emitting device according to claim 2 is characterized in that: The air outlet cover (23) is rotatably sleeved with an air outlet rubber cover (21); an annular protrusion is provided on the inner wall of the air outlet rubber cover (21) for use in conjunction with a groove (232) provided on the side wall of the air outlet cover (23); a rubber cover air outlet (233) is provided on the side wall of the air outlet rubber cover (21); after the air outlet rubber cover (21) is sleeved on the air outlet cover (23), the rubber cover air outlet (233) overlaps with the air outlet (231).

4. The ventilation and heat dissipation structure of the chassis shell of the laser emitting device according to any one of claims 1 to 3, characterized in that: The air outlets (231) include two, both of which are arranged below the horizontal line of the air outlet cover (23).

5. The ventilation and heat dissipation structure of the chassis shell of the laser emitting device according to claim 1 is characterized in that: The lower air outlet (3) is in a stepped shape, and a movable grille (32) is slidably fixed to a first step surface via a grille pressing plate (33).

6. The ventilation and heat dissipation structure of the chassis shell of the laser emitting device according to claim 5, characterized in that: The interlayer between the air intake grille (31) and the movable grille (32) is provided with filter cotton (4).

7. The ventilation and heat dissipation structure of the chassis shell of the laser emitting device according to claim 6, characterized in that: The upper surface of the grille pressing plate (33), the bottom surface of the sliding groove (35) and the secondary step surface are on the same horizontal plane.

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