JPH0571052U - In-vehicle audio equipment connector with anti-theft device - Google Patents

Abstract

(57) [Summary] [Purpose] In an in-vehicle audio device equipped with an anti-theft function that prevents the device from operating unless a predetermined code is entered, if the power is reconnected within a short time after disconnecting the power connector, Power supply connector for in-vehicle audio equipment that solves the problem that the device operates without entering a code and activates the anti-theft electronic lock immediately after disconnecting the connector to fully demonstrate the anti-theft function I will provide a. [Structure] Protrusions 6a, 7a are formed opposite to the battery terminal 6 and the ground terminal 7 of the device-side connector 3 of the connector 1, and the protrusions 6a, 7a contact each other when the connector 1 is detached, Moreover, when the connector 1 is fitted, it is configured to be separated by the wall portion 2a of the vehicle-side connector 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an anti-theft device, and more particularly, to a power supply connector for an in-vehicle audio device equipped with an anti-theft device (hereinafter referred to as anti-theft) that cannot be operated unless a predetermined code is input after power is connected.

[0002]

[Prior Art]

 Audio equipment installed in vehicles such as automobiles is small and lightweight, and is easily stolen. For example, a small and lightweight in-vehicle audio device such as a car radio is fixed to the front panel of the car, etc., but it is easy to remove the device by removing the power connector and connect it to the power supply of another vehicle. Since it can be operated at any time, it was often stolen.

Therefore, conventionally, a predetermined code for theft prevention is pre-stored in an in-vehicle audio device in the form of an electronic signal, and when the power supply connector is once disconnected and the connector is reconnected, the predetermined code is stored. An electronic lock has been developed and put into practical use, in which a kind of electronic lock is activated unless input is made, so that the audio equipment is not operated, that is, the voice cannot be heard. For example, there is one disclosed in Japanese Examined Patent Publication No. 1-48177.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned anti-theft for vehicle-mounted audio equipment, for example, in the case of a car radio with a built-in high power amplifier, if the connector is reconnected to the power supply within a few seconds to 10 seconds after disconnecting the power supply connector, the specified code will not be input. However, there was a problem that the device would operate. This is because both the battery terminal and the ground terminal of the device side connector floated as the connector was removed, and the discharge path of the large-capacity capacitor of 2200μ × 2 etc. passed and the voltage drop in the control unit (microcomputer) occurred. This is because the judgment is delayed and the operation of the electronic lock is delayed. Therefore, there is a drawback that the anti-theft prevention effect cannot be fully exhibited.

The present invention is intended to solve the above-mentioned problems of the conventional anti-theft for vehicle-mounted audio equipment, and to provide a vehicle-mounted audio equipment that can promptly activate the electronic lock of the anti-theft after disconnection of the connector. An object is to provide a connector for power supply.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the in-vehicle audio device connector of the present invention is a vehicle audio device connector equipped with an anti-theft device that prevents the device from operating unless a predetermined code is input after the power is connected. The battery terminal and the ground terminal of the connector are formed so as to be in contact with each other, and when the vehicle-side connector is connected to the device-side connector, the wall portion provided on the vehicle-side connector is the battery terminal and the ground terminal of the device-side connector. The battery terminal and the ground terminal are separated from each other.

[0007]

[Action]

 In the in-vehicle audio device connector of the present invention configured as described above, when the connector is detached, the battery terminal and the ground terminal come into contact with each other and the circuit is forcibly short-circuited, and the capacitor in the device is instantly discharged. To do. Therefore, the voltage drop in the anti-Theft control section is immediately determined, the electronic lock is activated, and even if the power is connected, the device will not operate unless a predetermined code is input. When the connector is connected, the battery terminal and the ground terminal of the device side connector are separated by the wall part installed in the vehicle side connector, and the normal power supply connection state is established.

[0008]

【Example】

 Hereinafter, the configuration and operation of the on-vehicle audio equipment connector of the present invention will be described in more detail with reference to the embodiments shown in the drawings.

FIG. 1 is a perspective view showing an embodiment of an in-vehicle audio equipment connector according to the present invention. The connector 1 includes a vehicle side (female) connector 2 connected to a vehicle battery and a device side (male) connector 3 attached to an audio device and fitted to the vehicle side connector 2. The device-side connector 3 is provided with a plurality of male terminals 5 that are fitted into the female terminals 4 of the vehicle-side connector 2, one of the plurality of male terminals 5 being a battery terminal 6 and the other one being grounded (grounded). ) It is terminal 7.

The battery terminal 6 and the ground terminal 7 are arranged adjacent to each other, and projecting portions 6 a and 7 a facing each other are formed near the respective tip portions. These projections 6a and 7a are in contact with each other due to the elasticity of the terminal metal material when the device side connector 3 is detached from the vehicle side connector 2 as shown in the figure. When the device-side connector 3 is fitted into the vehicle-side connector 2, the protrusions 6a and 7a are pushed apart by the walls 2a between the terminals of the vehicle-side connector 2 and are fitted into the female terminals 4 in a separated state. 2 and 3 are plan sectional views showing the operation of the battery terminal 6 and the ground terminal 7 as described above. FIG. 2 shows a connector detached state, and FIG. 3 shows a connector fitted state.

As shown in FIG. 3, the device side connector 3 is fitted to the vehicle side connector 2, and power is supplied to the device from the battery power source of the vehicle. However, when the connector 1 is detached, the device side connector 3 The battery terminal 6 and the ground terminal 7 are forcibly short-circuited by the contact of the protrusions 6a, 7a. Due to this short circuit, the capacitors inside the equipment are instantly discharged, and the anti-Theft control unit (not shown) immediately determines the voltage drop and activates the electronic lock. Therefore, when the power is reconnected, the device will not operate unless the specified code is entered. In the above embodiment, the battery terminal 6 and the ground terminal 7 of the device-side connector 3 are provided with the protrusions 6a and 7a, respectively, and the protrusions 6a and 7a are brought into contact with each other, but the protrusions are not always required. Instead, the connector 1 may have any shape as long as the battery terminal 6 and the ground terminal 7 contact each other in the detached state. Further, the anti-theft lock means may be an electronic one, and may be one that mechanically prevents the device from being operated. In the case of using the conventional ordinary connector, it took several seconds to 10 seconds from the disconnection of the connector to the electronic lock operation, but in the case of using the connector of the present invention, it takes less than 1 second. Therefore, even if you disconnect the power connector and disconnect the device and connect it to the power supply of another vehicle within a short time, you cannot use the device unless you enter the predetermined code stored in the device in advance. Is completely done.

[0012]

[Effect of the device]

 As is clear from the above description, the in-vehicle audio device connector of the present invention is configured so that the battery terminal and the ground terminal of the device-side connector are forcibly short-circuited when the connector is detached. The delay in the determination of the voltage drop by the control unit can be eliminated to minimize the delay in the operation of the electronic lock, and the anti-theft function can be fully activated.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an in-vehicle audio device connector according to the present invention.

FIG. 2 is a plan sectional view showing a detached state of the connector of FIG.

FIG. 3 is a plan sectional view showing a fitted state of the connector of FIG.

[Explanation of symbols]

 1 Connector 2 Vehicle-side Connector 2a Wall Part 3 Device-side Connector 6 Battery Terminal 7 Ground Terminal

Claims (1)

[Scope of utility model registration request] 1. An in-vehicle audio equipment connector equipped with an anti-theft device that prevents the equipment from operating unless a predetermined code is input after the power supply is connected so that the battery terminal and the ground terminal of the equipment-side connector contact each other. Formed into
When the vehicle-side connector is connected to the device-side connector, the wall portion provided on the vehicle-side connector enters between the battery terminal and the ground terminal of the device-side connector, and the battery terminal and the ground terminal are separated from each other. This is a connector for vehicle-mounted audio equipment with an anti-theft device.