JP7448121B2 - smart key device - Google Patents

Description

The present invention relates to a smart key device that allows a vehicle to perform predetermined operations, including unlocking, by communicating an authentication code unique to the vehicle.

Recently, authentication codes are exchanged wirelessly between a vehicle and a smart key device, and if the authentication code sent from the smart key device and received by the vehicle is unique to that vehicle, the door lock Smart key systems that enable operations such as unlocking and starting the engine are becoming popular. Conventionally, smart key devices used in such smart key systems are equipped with a transmitting unit that operates using power supplied from a battery, and are capable of transmitting an authentication code from the transmitting unit (for example, (See Patent Document 1).

JP2017-096088A

However, in conventional smart key devices, the transmitting unit is formed with a battery attachment part for attaching a button battery, etc., so it is not possible to change to another battery with different dimensions and capacity, etc. Only old batteries could be used. Therefore, the present applicant has conducted extensive research into a smart key that can arbitrarily change the form of the battery depending on the form of the vehicle to which the key is applied and the form of use.

The present invention has been made in view of these circumstances, and it is an object of the present invention to provide a smart key device in which the form of the battery can be arbitrarily changed depending on the form of the vehicle to which it is applied and the form of use.

The invention according to claim 1 includes a transmitting unit capable of transmitting an authentication code unique to the vehicle to a vehicle, and a housing case housing the transmitting unit, and transmitting the authentication code transmitted from the transmitting unit to the vehicle. In the smart key device that can allow predetermined operations including unlocking of the vehicle by receiving a signal from the transmitter, an extension adapter is attached to a battery mounting portion formed in the transmitter unit, and the transmitter unit in the housing case is connected to the transmitter unit. The present invention is characterized in that batteries are held at different positions, and power from the batteries can be supplied to the transmitting unit via the extension adapter.

The invention according to claim 2 is the smart key device according to claim 1, wherein a holding part for holding the battery is formed, and an electric circuit is formed to electrically connect the battery and the extension adapter. It is characterized by having a substrate.

The invention according to claim 3 is the smart key device according to claim 2, characterized in that the board is formed with a cutoff operation means for cutting off power supply from the battery to the transmitting unit by an operation of an operator. do.

The invention according to claim 4 is the smart key device according to claim 2 or 3, wherein an extension adapter is attached between the transmitting unit and the board, and is attached to the battery attachment part and formed on the board. The present invention is characterized by comprising a positioning member capable of positioning the electrical circuit.

The invention according to claim 5 is the smart key device according to any one of claims 1 to 4, wherein the extension adapter has an outer contour shape that follows the mounting shape of the battery mounting portion. shall be.

According to the invention of claim 1, the extension adapter is attached to the battery attachment part formed in the transmitting unit, and the battery is held in a position different from that of the transmitting unit in the storage case, and the power of the battery is used to connect the extension adapter to the transmitting unit. Since the battery can be supplied to the transmitting unit via the battery, the form of the battery can be arbitrarily changed depending on the form of the vehicle to which it is applied and the form of use.

According to the invention of claim 2, since the holding part that holds the battery is formed and the board is formed with the electric circuit that electrically connects the battery and the extension adapter, there is no freedom in the holding position of the battery. can improve the degree of

According to the third aspect of the invention, the board is formed with a cutoff operation means that cuts off the power supply from the battery to the transmitting unit by the operator's operation, so that fraudulent acts such as relay attacks can be simply and easily prevented. can.

According to the invention of claim 4, since the positioning member is installed between the transmitting unit and the board and is capable of positioning the extension adapter attached to the battery mounting part and the electric circuit formed on the board, the extension The positioning between the adapter and the electric circuit can be performed with high precision, and the electrical connection between the battery and the extension adapter can be maintained reliably.

According to the invention of claim 5, since the extension adapter has an outer contour shape that follows the mounting shape of the battery mounting portion, it is possible to stably hold the extension adapter with respect to the battery mounting portion.

A perspective view showing the front appearance of a smart key device according to an embodiment of the present invention A perspective view showing the appearance of the back side of the smart key device Three-view diagram showing the appearance of the smart key device Cross-sectional view along the IV-IV line in Figure 3 A perspective view showing the state in which the board is attached to the transmission unit in the smart key device (viewed from the board side) A perspective view showing the state in which the circuit board is attached to the transmission unit in the same smart key device (viewed from the transmission unit side) A three-sided view showing the state in which the circuit board is attached to the transmission unit in the smart key device. VIII-VIII line sectional view in Figure 7 A perspective view showing the transmission unit, extension adapter, positioning member, and board in the smart key device. A perspective view showing the extension adapter attached to the transmission unit in the smart key device. A perspective view showing a state in which a positioning member is attached to a transmitting unit to which an extension adapter is attached in the same smart key device. Three-view diagram showing the positioning member in the smart key device A perspective view showing the back side of the board in the smart key device Three-view diagram showing the extension adapter in the smart key device

Embodiments of the present invention will be specifically described below with reference to the drawings.
The smart key device 1 according to the present embodiment is capable of permitting predetermined operations (starting the engine, etc.) including unlocking of the vehicle by transmitting an authentication code unique to the vehicle to the vehicle. 4, a housing case 2 having a first housing case 2a and a second housing case 2b, a button battery D, a transmitting unit 3, an operation button part 5 formed on the first housing case 2a, It includes a shutoff operation means 4 formed in the second storage case 2b, an extension adapter 6, a board 7, and a positioning member 8.

The housing case 2 is constructed by assembling a first housing case 2a and a second housing case 2b which are in a half-split shape, and has a housing space for housing the transmitting unit 3 therein. In addition, in this embodiment, the operation button part 5 formed in the first storage case 2a allows the operator to lock or unlock the vehicle and open/close the door, and is also formed in the second storage case 2b. The cut-off operation means 4 cut off the power supply from the button battery D to the transmitting unit 3 by the operator's operation.

Note that a decorative plate 2aa is attached to the outer periphery of the operation button section 5 in the first storage case 2a, and a decorative plate 2ba is attached to the outer periphery of the cutoff operation means 4 in the second storage case 2b. , the design is improved. Further, an emergency key K is attached to the storage case 2, and can be removed from the storage case 2 and used in an emergency such as when the battery runs out.

The transmitting unit 3 is operated by power supplied from the button battery D and is for continuously transmitting the authentication code.As shown in FIGS. An operating section a that can be turned on and off by being pressed in response to an operation is formed, and a battery mounting section 3a is formed on the other surface. The battery attachment part 3a is formed of a recess into which the button battery D can be attached, and in this embodiment, the extension adapter 6 is fitted therein.

Then, in a state where it is determined that the vehicle has received a regular authentication code, when the switch a is pressed by operating an arbitrary operation button section 5, a predetermined signal is transmitted to the vehicle. For example, unlocking the doors and opening and closing the trunk can be done remotely. In addition, in this embodiment, four operation button parts 5 are formed in the first storage case 2a, but one in which a single, three, four or more operation button parts 5 are formed, or an operation button in which four or more operation button parts 5 are formed. It may not have the portion 5.

The extension adapter 6 has an outer contour that follows the mounting shape of the battery mounting portion 3a (specifically, the shape of the inner peripheral surface of the recess), and is attached to the battery mounting portion 3a, as shown in FIG. As shown, the contact terminal 6a is formed to protrude. That is, the extension adapter 6 is approximately the same in size and shape as the button battery D, and the battery attachment part 3a is designed to attach the button battery D as a power source for the smart key device 1. However, in place of the button battery D, an extension adapter 6 is attached to the battery attachment portion 3a according to this embodiment.

As shown in FIGS. 5 to 9, the board 7 is made of a printed circuit board attached to the transmitting unit 3 via a positioning member 8, and has a holding part H for holding the button battery D, and also has a holding part H for holding the button battery D. An electric circuit is formed to electrically connect the extension adapter 6 and the extension adapter 6. Specifically, a desired electric circuit is printed on the substrate 7, and as shown in FIG. 13, a contact portion 7a is formed in a part of the electric circuit. Then, when the board 7 is attached to the transmitting unit 3, the contact terminal 6a of the extension adapter 6 is in contact with the contact part 7a, and the button battery D, the electric circuit of the board 7, the extension adapter 6, and the transmitting unit 6 are connected to each other. It is configured to be connected.

As a result, the button battery D is held at a position different from the transmitter unit 3 in the storage case 2 (in the present embodiment, the holding portion H of the board 7), and the power of the button battery D is transmitted via the extension adapter 6. It is said that it can be supplied to Unit 3. Further, as shown in FIG. 9, the board 7 according to the present embodiment is attached with a cutoff operation means 4 consisting of a slide switch, and when the operator operates the cutoff operation means 4, the button battery D The power supply to the transmitting unit 3 can be cut off from there.

As shown in FIGS. 8 and 9, the positioning member 8 is attached between the transmitting unit 3 and the board 7, and positions the extension adapter 6 attached to the battery mounting part 3a and the electric circuit formed on the board 7. Consists of possible molded parts. Specifically, as shown in FIG. 12, the positioning member 8 according to this embodiment is a frame-shaped member in which a plurality of protrusions 8a and a pair of upper and lower openings 8b are formed on one surface. There is.

Then, by fitting the protrusions 8a into the plurality of holes 3b (see FIG. 10) formed in the transmitting unit 3, one side of the transmitting unit 3 (the extension adapter 6 is attached) as shown in FIG. A positioning member 8 can be attached to the surface). In this state, the contact terminal 6a of the extension adapter 6 is configured to be able to protrude through the opening 8b.

In this way, by attaching the board 7 to the positioning member 8 attached to the transmitting unit 3, as shown in FIGS. 5, 6, and 8, the board 7 can be positioned with respect to the transmitting unit 3. Therefore, the contact terminal 6a of the extension adapter 6 and the contact portion 7a of the board 7 can be brought into contact with high precision. Note that the surface of the substrate 7 on which the button battery D is held is covered with a cover member 9, as shown in FIG.

According to this embodiment, the extension adapter 6 is attached to the battery attachment part 3a formed on the transmitting unit 3, and at a different position from the transmitting unit 3 in the housing case 2 (the holding part H formed on the substrate 7). Since the button battery D is held and the power of the button battery D can be supplied to the transmitting unit 3 via the extension adapter 6, the battery type can be arbitrarily selected depending on the type of vehicle to which it is applied and the type of use. Can be changed.

Further, according to the present embodiment, the holding portion H that holds the button battery D is formed, and the substrate 7 is formed with an electric circuit that electrically connects the button battery D and the extension adapter 6. , it is not necessary to bring the button battery D into direct contact with the extension adapter 6, and the degree of freedom in holding the button battery D can be improved. In addition, since the button battery D and the extension adapter 6 are electrically connected via the electric circuit formed (printed) on the substrate 7, the power of the button battery D is reliably transmitted to the transmission unit via the extension adapter 6. 3 can be supplied.

Furthermore, since the board 7 according to the present embodiment is formed with the cutoff operation means 4 that cuts off the power supply from the battery to the transmitting unit 3 by an operator's operation, the power supply from the button battery D to the transmitting unit 3 can be arbitrarily cut off. This makes it possible to simply and easily prevent fraudulent acts such as relay attacks, and to enhance the crime prevention effect while maintaining operability.

Furthermore, since the positioning member 8 is installed between the transmitting unit 3 and the board 7 and can position the extension adapter 6 attached to the battery mounting part 3a and the electric circuit formed on the board 7, the extension The positioning between the adapter 6 and the electric circuit can be performed with high precision, and the electrical connection between the button battery D and the extension adapter 6 can be maintained reliably.

Furthermore, since the extension adapter 6 according to the present embodiment has an outer contour shape (approximately disk shape as shown in FIG. 14) that follows the mounting shape of the battery mounting part 3a, it can be extended with respect to the battery mounting part 3a. The adapter 6 can be held stably. The extension adapter 6 only needs to be one that can be attached to the battery attachment part 3a and supply power from the button battery D to the transmitter unit 3, and may have an irregular shape such as a rectangular, oval, or star shape when viewed from above. It may be.

Although the present embodiment has been described above, the present invention is not limited thereto. For example, the button battery D is not held in the holding part H of the board 7, but in another position (for example, in the storage case 2). The button battery D may be held in the formed holding portion, etc., and the power of the button battery D may be supplied to the transmitting unit 3 via the extension adapter 6. In addition, the form of the battery can be changed arbitrarily depending on the form of the vehicle to which it is applied and the form of use, and the button battery D may be replaced with AA batteries, AAA batteries, rechargeable secondary batteries, etc. . In addition, the device may not include the shutoff operation means 4. Note that the vehicle to which the present invention is applied is not limited to automobiles, and may be other types of vehicles such as motorcycles.

An extension adapter is attached to a battery mounting portion formed on the transmitting unit, and the battery is held in a position different from that of the transmitting unit within the housing case, so that power from the battery can be supplied to the transmitting unit via the extension adapter. The smart key device may have a different external shape or may have other functions.

1 Smart key device 2 Storage case 2a First storage case 2aa Decorative board 2b Second storage case 2ba Decorative board 3 Transmission unit 3a Battery mounting part 3b Insertion hole 4 Shutoff operation means 5 Operation button part 6 Extension adapter 6a Contact terminal 7 Board 7a Contact portion 8 Positioning member 8a Projection portion 8b Opening portion 9 Cover member D Button battery H Holding portion K Emergency key

Claims (5)

a transmission unit capable of transmitting an authentication code unique to the vehicle to the vehicle;
a housing case that houses the transmitting unit;
A smart key device comprising: a smart key device capable of permitting predetermined operations including unlocking of the vehicle by the vehicle receiving an authentication code transmitted from the transmitting unit;
An extension adapter is attached to a battery mounting portion formed on the transmitting unit, and a battery is held in a position different from the transmitting unit within the housing case, and power from the battery is supplied to the transmitting unit via the extension adapter. A smart key device characterized in that it can be supplied. 2. The smart key device according to claim 1, further comprising a substrate on which a holding portion for holding the battery is formed and an electric circuit for electrically connecting the battery and the extension adapter. 3. The smart key device according to claim 2, wherein the board is formed with a cutoff operation means for cutting off power supply from the battery to the transmitting unit in response to an operation by an operator. Claim 2 or 3, further comprising a positioning member attached between the transmitting unit and the board and capable of positioning the extension adapter attached to the battery mounting part and the electric circuit formed on the board. The smart key device according to claim 3. The smart key device according to any one of claims 1 to 4, wherein the extension adapter has an outer contour shape that follows the mounting shape of the battery mounting portion.

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