JPH0590464U - Waterproof structure of surveillance camera - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a waterproof structure of a surveillance camera provided with a relay connector. [Structure] A waterproof structure of a surveillance camera in which a cable is introduced into the camera case via a relay connector, and a terminal block with a plurality of terminal pins protruding on both sides is arranged between the relay connector and the camera case. The camera case side of the terminal block has an airtight structure, and the lead wires of the cable from the relay connector are connected to the terminal pins on one surface of the terminal block, and the board inside the camera case is connected to the terminal pins on the other surface. Connected with the lead wire from.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a waterproof structure for a surveillance camera.

[0002]

[Prior Art]

 A surveillance camera arranged at a rear portion of a vehicle is exposed to wind and rain, and a camera case of the surveillance camera has a completely airtight waterproof structure. Water resistance is also considered for the cable introduction part.

FIG. 4 is a cross-sectional view of the introduction portion of the cable 1, in which a packing 3 is arranged on the outer periphery of the cable 1 outside the camera case 2, and the packing 3 is fixed with a waterproof screw 4. .. Of course, the lead wire 5 in the cable 1 is connected to a substrate (not shown) in the camera case 2. Reference numeral 6 represents a relay connector.

[0004]

[Problems to be solved by the device]

 Certainly, the waterproof structure shown in FIG. 4 is effective with respect to the water transmitted through the outer skin of the cable 1. However, in the case of the surveillance camera having the relay connector 6 as described above, this is insufficient.

That is, at the connecting portion of the relay connector 6, the lead wire 5 is in a bare state (not covered by the outer cover of the cable 1 and rainwater enters from between the lead wire 5 and the outer cover of the cable). On the other hand, the inside of the camera case 2 is completely airtight, and the positive pressure or the negative pressure is generated depending on the temperature, and the water or water vapor invading the inside of the camera case 2 when the negative pressure is applied. , The sucked water or water vapor may cause the camera to malfunction.

The present invention has been made for the purpose of providing a waterproof structure for a surveillance camera that solves the above problems.

[0007]

[Means for Solving the Problems]

 That is, the present invention is a waterproof structure of a surveillance camera in which a cable is introduced into a camera case through a relay connector, and a plurality of terminal pins are projected on both sides by insert molding between the relay connector and the camera case. The camera case side of the terminal block has an airtight structure, and the lead wires of the cable from the relay connector are connected to the terminal pins on one surface of the terminal block, and the terminals on the other surface are also connected. The pins are connected to the lead wires from the board inside the camera case.

[0008]

[Action]

 According to the present invention having the above-described configuration, each lead wire from the relay connector is connected to the terminal pin on the outside of the camera case, so that rainwater that has entered between the lead wire and the cable outer skin is guided along the terminal pin. Although the terminal pins are embedded in the terminal block by insert molding, there is no room for rainwater to enter the camera case along the terminal pins, and rainwater falls off from the cable at the connection part. ..

[0009]

【Example】

 The present invention will be described below based on the embodiment shown in FIGS. In the figure, reference numeral 11 denotes a camera case, and the camera case 11 has an airtight structure by using packing 12 or the like. Reference numeral 13 is a cable, and 14 is a lead wire forming the cable 13. The cable 13 is guided to the camera case 11 via a relay connector 15. By the way, the lead wire 14 outside the camera in the present invention is connected to the terminal pin 17 of the terminal block 16. The terminal block 16 is formed in a hat shape having a collar portion 16b under a head portion 16a, and is provided with a plurality of terminal pins 17 protruding on both upper and lower surfaces. Specifically, a plurality of terminal pins 17 are embedded and integrated in a hard plastic by insert molding. The terminal block 16 is mounted in a through hole 11a formed in the camera case 11. That is, the head portion 16a is fitted into the through hole 11a, and the flange portion 16b is abutted against the inner peripheral edge of the through hole 11a and fixed by the screw 18. A packing 19 is arranged between the terminal block 16 and the through hole 11a in order to keep the inside of the camera case 11 airtight.

Therefore, in this state, the terminal pin 17 is exposed on the upper surface of the through hole 11a.

Therefore, the case cover 20 is attached to the camera case 11 so as to cover the upper surface of the through hole 11a. Reference numeral 21 denotes a connection chamber formed on the upper surface of the through hole 11a by attaching the case cover 20. That is, the cable 13 passing through the relay connector 15 is guided to the connection chamber 21. Numerals 22a and 22b are packings arranged between the camera case 11 and the case cover 20, and the cable 13 is guided between the packings 22a and 22b into the connection chamber 21. In other words, the packings 22a and 22b are configured to prevent the rainwater that has traveled through the outer surface of the cable from entering the connection chamber 21. The lead wire 14 is connected to the terminal pin 17 in the connection chamber 21. Specifically, the lead wire 14 is soldered to the terminal pin 17, and a heat-shrinkable tube is wound around the lead wire 14.

Of course, a lead wire from a substrate (not shown) is connected to the terminal pin 17 protruding into the camera case.

Therefore, rainwater that has entered the cable 13 near the relay connector 15 and has reached the connection chamber 21 is prevented from moving into the camera case 11 by the terminal block 16 and is provided on the case cover 20. The water is discharged from the drain hole 23 to the outside of the connection chamber 21.

By the way, when rainwater accumulates in the embedded base of the terminal pin 17, an electric current leaks. In order to prevent this phenomenon, it is preferable that the portion in which the terminal pin is embedded is raised as shown in FIG. 3 (the raised portion is indicated by reference numeral 16c).

[0015]

As described above, according to the present invention, each lead wire from the relay connector is connected to the terminal pin on the outside of the camera case, and therefore, between the lead wire and the cable jacket. Rainwater that has entered from the terminal tries to move along the terminal pin, but the terminal pin is embedded in the terminal block by insert molding and there is no room for rainwater to enter the camera case along the terminal pin. The camera is well preserved and the product life is extended.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention.

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is a partially enlarged cross-sectional view of another embodiment.

FIG. 4 Conventional example diagram

[Explanation of symbols]

 11 camera case 13 cable 14 lead wire 15 relay connector 16 terminal block 17 terminal pin

Claims (1)

[Scope of utility model registration request] 1. A waterproof structure for a surveillance camera in which a cable is introduced into a camera case via a relay connector, wherein a plurality of terminal pins are projected on both sides by insert molding between the relay connector and the camera case. A terminal block is arranged, and the camera case side of the terminal block is formed into an airtight structure, and further, the lead wire of the cable from the relay connector is connected to the terminal pin on one surface of the terminal block and the terminal pin on the other surface. A waterproof structure for surveillance cameras, in which lead wires from the board inside the camera case are connected.