GB2431776A

GB2431776A - Heat dissipator for a surveillance camera

Info

Publication number: GB2431776A
Application number: GB0521692A
Authority: GB
Inventors: Ming-Huang Huang
Original assignee: Camdeor Tech Co Ltd
Current assignee: Camdeor Tech Co Ltd
Priority date: 2005-10-25
Filing date: 2005-10-25
Publication date: 2007-05-02
Anticipated expiration: 2025-10-25
Also published as: GB2431776B; GB0521692D0

Abstract

A heat dissipator assembly for a surveillance camera comprises an L-shaped, integrally formed heat dissipator 1 slidably received and adapted to be in direct contact with the casing of the camera (5, Fig 5). The heat dissipator is divided into a vertical portion and a horizontal portion having connecting bosses 11 formed thereon for connection with a circuit board 4. A brass plate 2 is securely mounted on a side face of the vertical portion for connection with light emitting diodes 3. The heat dissipator may be aluminium.

Description

HEAT D1SS!PA'OR FOR A SURVEILLANCE CAMERA

2 BACKGROUND OF THE INVENTION

3 1 Field of the Invention

4 The present invention relates to a heat dissipator, and more particularly to a heat dissipator for a surveillance camera to facilitate heat dissipation so as to prolong the life 6 span of the surveillance camera.

7 2. Description of the Related Art

8 A conventional surveillance camera is shown in Fig. I, wherein the camera is 9 provided with a casing (B), a base plate (A) mounted on a bottom face of the casing (B), a circuit board (AS) mounted on a side of the base plate (A), a connecting plate (A4) ii connected to the circuit board (A5) via a bolt (Al) and having multiple light emitting 12 diodes (A3) mounted on a side face thereof, a lens (A2) mounted on the circuit board 13 (AS) and extending out of the connecting plate (A4) and a power supply (A6) mounted 14 on the base plate (A) via a foam material (A7).

When the conventional surveillance camera is in application, both the power 16 supply (A6) and the LEDs (A3) generate large volume of heat which impedes normal 17 function of the camera (A2). Besides, because the LEDs (A3) is not in direct contact 18 with the casing (B) and the power supply (A6) is isolated from the casing (B) by the 19 foam material (A7), heat inside the casing (B) will gradually build-up and eventually damage the camera (A2).

21 To overcome the shortcomings, the present invention tends to provide an 22 improved heat dissipator to mitigate the aforementioned problems.

23 SUMMARY OF THE VENTJQN

24 The primary objective of the present invention is to provide an improved heat i dissipator to he adapted for the surveillance camera so as to facilitate heat dissipation 2 In one aspect of the present invention, the heat dissipator of the present 3 invention is L-shaped and includes multiple connecting bosses formed on a top side of a 4 horizontal portion of the heat dissipator for connection with a circuit board and a side plate securely mounted on a vertical portion of the heat dissipator for connection with 6 the LEDs such that heat inside the surveillance camera is able to be dissipated.

7 Other objects, advantages and novel features of the invention will become more 8 apparent from the following detailed description when taken in conjunction with the 9 accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

11 Fig. 1 is a schematic view of a conventional surveillance camera, wherein 12 arrows show the heat inside the casing is not well dissipated; 13 Fig. 2 is a side plan view showing the heat dissipator of the present invention; 14 Fig. 3 is an exploded perspective view showing that LEDs and a circuit board are to be combined with the heat dissipator of the present invention; 16 Fig. 4 is a perspective view showing the combination of the heat dissipator of 17 the present invention with the LEDs and the circuit board; 18 Fig. 5 is a schematic perspective view showing the combination of the heat 19 dissipator, the LEDs and the circuit board is assembled inside the casing of the surveillance camera; 21 Fig. 6 is a partially cross sectional view showing that the heat dissipator is in 22 direct contact with the casing of the surveillance camera; and 23 Fig. 7 is a schematic view showing that heat inside the casing is well dissipated 24 via the heat dissipator of the present invention.

I L)1 lAILLU DLI<1i'iIU U II-1 IiL)_L1ViiMk_L 2 With reference to Fig. 2, it is noted that the heat dissipator (I) of the present 3 invention is L-shaped and thus includes a vertical portion and a horizontal portion.

4 Preferably, the heat dissipator (1) is made of aluminum.

Multiple connecting bosses (11) are formed on a top face of the horizontal 6 portion and the vertical portion of the heat dissipator is securely engaged with a brass 7 plate (2).

8 With reference to Figs. 3 and 4, it is noted that when the heat dissipator of the 9 present invention is to be mounted with LEDs (3) and a circuit board (4), the LEDs (3) are directly mounted on the brass plate (2) and the circuit board (4) is mounted on the 11 top face of the horizontal portion of the heat dissipator (1) via the connecting bosses 12 (11).

13 With reference to Figs. 5 and 6, after the LEDs (3) and the circuit board (4) are 14 respectively mounted on the vertical portion and the horizontal portion of the heat is dissipator (1) of the present invention, the combination of the heat dissipator (1), the 16 LEDs (3) and the circuit board (4) is slid into a casing (5) having a channel (51) defined 17 therein. After the combination of the heat dissipator (1), the LEDs (3) and the circuit 18 board (4) reaches an inner side face of the casing (5), opposed side faces of the heat 19 dissipator (1) are in direct connect with the inner side walls of the casing (5) and a bottom face of the heat dissipator (1) is in direct contact with an inner bottom face of the 21 casing (5) such that heat from the circuit board (4) due to components thereon and from 22 the LEDs (3) is well dissipated from the casing (5) via heat conduction.

23 With reference to Fig. 7, it is noted that heat generated is able to be dissipated 24 from all directions inside the casing (5) such that the life span of the surveillance camera I is prolonged.

2 In view of the above description, it is concluded that: 3 1. The brass plate is able to quickly absorb heat from the LEDs so that the heat 4 is able to be dissipated from the casing.

2. The generated heat is able to be dissipated due to direct contact between the 6 L-shaped heat dissipator and the casing.

7 3. The L-shaped heat dissipator is integrally formed.

8 4. The L-shaped heat dissipator is vastly applicable.

9 5. The boss in direct contact with the power supply is able to dissipate heat from io the power supply.

ii It is to be understood, however, that even though numerous characteristics and 12 advantages of the present invention have been set forth in the foregoing description, 13 together with details of the structure and function of the invention, the disclosure is 14 illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent 16 indicated by tile broad general meaning of the terms in which the appended claims are 17 expressed.

Claims

I WRAi IS CLA1VIED IS: 2 1. A heat dissipator assembly for a sueillance

camera having a casing, the heat 3 dissipator comprising: 4 an L-shaped, integrally formed heat dissipator slidably received and adapted to be in direct contact with the casing, the heat dissipator being divided into a vertical 6 portion and a horizontal portion, the horizontal portion having multiple connecting 7 bosses formed thereon for connection with a circuit board; and 8 a plate securely mounted on a side face of the vertical portion for connection 9 with light emitting diodes.

2. The heat dissipator assembly as claimed in claim 1, wherein the plate is made ii of brass.

12 3. The heat dissipator assembly as claimed in claim 2, wherein the heat 13 dissipator is made of aluminum.