JP2009231919A - Electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide electronic equipment such that a specified function is easily alternated between effective and ineffective states. <P>SOLUTION: A mixer with a power supply switch function includes a connector 12 for the power supply switch function which makes an external connection possible, and a switch (comprising a photocoupler 11 and a one-electrode single-throw mechanical relay 13) whose state is switched according to an external connection state which is an open or load state of the connector 12 for the power supply switch function, and makes alternately effective and ineffective the power supply function (of transmitting electric power supplied from a power source unit 7 externally connected to an output connector 7) to a booster 102A externally connected to a first input connector 1 as the state of the switch is changed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic device, and more particularly to an electronic device capable of switching between valid / invalid of a specific function.

  As an example of a conventional electronic device that can switch the validity / invalidity of a specific function, here, a mixer that can switch the validity / invalidity of an energization function (hereinafter referred to as a mixer with an energization switch function) is taken as an example. explain.

  An example of the configuration of a conventional mixer with an energizing switch function is shown in FIG. A conventional mixer 600 with an energizing switch function shown in FIG. 6 includes a first input connector 1 that inputs a reception signal of a UHF (Ultra High Frequency) antenna 101A and a second input connector 2 that inputs a reception signal of the UHF antenna 101B. A mixer 5 that mixes the received signal of the UHF antenna 101A inputted by the first input connector 1 and the received signal of the UHF antenna 101B inputted by the second input connector 2, and the reception mixed by the mixer 5 And an output connector 7 for outputting a signal. Moreover, in the conventional mixer 600 with an energizing switch function shown in FIG. 6, between the first input connector 1 and the mixer 5, between the second input connector 2 and the mixer 5, and between the mixer 5 and the output connector 7. DC blocking capacitors 3, 4, and 6 are disposed between them. Moreover, in the conventional mixer 600 with an energizing switch function shown in FIG. 6, a slide switch SW1 is disposed between the output connector 7 and the first input connector 1, and further, between the output connector 7 and the slide switch SW1, High frequency blocking coils 8 and 9 are disposed between the slide switch SW1 and the first input connector 1, respectively.

  Between the UHF antenna 101A and the first input connector 1, a booster 102A that amplifies the received signal of the UHF antenna 101A is provided. The reception signal output from the output connector 7 is transmitted to the TV receiver 104 via the power supply unit 103. When the slide switch SW1 is in an ON state, an energization function for transmitting DC power or AC power supplied from the power supply unit 103 externally connected to the output connector 7 to the booster 102A externally connected to the first input connector 1 is provided. The booster 102A performs amplification operation. On the other hand, when it is not necessary to interpose the booster 102A between the UHF antenna 101A and the first input connector 1 depending on the reception situation in the installation area of the mixer, the booster 102A is interposed between the UHF antenna 101A and the first input connector 1. Is not provided, the slide switch SW1 is turned off, and the energization function is disabled.

Japanese Patent No. 2945387 (FIG. 2) Japanese Utility Model Publication No. 1-86717 (Fig. 2)

  When the conventional mixer 600 with an energizing switch function shown in FIG. 6 is an outdoor specification, the component parts are usually stored in a waterproof casing formed by die casting or the like, and the waterproof casing is provided with a user. A lid that can be opened and closed on the side is provided, and the first input connector 1, the second input connector 2, and the output connector 7 are arranged to be externally connectable. In order to secure the waterproofness of the connector portion, the first input connector 1, the second input connector 2 and the output connector 7 are waterproof connectors, or the first input connector 1 and the second input connector 2 are used. A waterproof cap may be attached to the output connector 7.

  According to this configuration, since the slide switch SW1 is inside the waterproof housing, when the ON / OFF of the slide switch SW1 is switched to enable / disable the current-carrying function, the user needs to have a waterproof structure. It was necessary to perform an operation of opening the lid of the housing, switching the slide switch SW1 ON / OFF, and then closing the lid of the waterproof housing. However, if the lid is opened and closed on the user side, there is a risk that the waterproof property is impaired. In order to avoid such a danger, it is necessary to provide a waterproof structure for the housing that does not reduce the waterproof accuracy by opening and closing the lid, which increases the manufacturing cost. In addition, since the lid is opened and closed, it takes time to switch the energization function between valid and invalid.

  On the other hand, in the conventional mixer 600 with an energizing switch function shown in FIG. 6, the components are stored in a waterproof casing made of die casting, and the first input connector 1, the second input connector 2, and The output connector 7 is arranged so that it can be connected to the outside, and a hole of about 10 mm that can be closed with a dummy bolt with an O-ring is provided in the waterproof structure, and the slide switch SW1 is turned ON / OFF from the hole. There are also products that employ a configuration in which the slide switch SW1 is arranged in a waterproof casing so that the switch can be switched. However, in such a product, since the slide switch SW1 can be arranged only in a place that is usually deep inside, the workability of switching the validity / invalidity of the energization function is poor. Further, if the dummy bolts with O-rings are not fastened tightly, there is a risk that the waterproofness is impaired.

  In view of the above situation, an object of the present invention is to provide an electronic device that can easily switch between valid / invalid of a specific function.

  In order to achieve the above object, an electronic apparatus according to the present invention includes a connector that can be externally connected, and a switch that switches a state according to an external connection state that is either open or load of the connector, It is assumed that the valid / invalid of a specific function is switched according to the switching of the state.

  According to such a configuration, the validity / invalidity of the specific function is switched by switching the open / load of the externally connectable connector, so that the validity / invalidity of the specific function can be easily switched.

  Moreover, you may store in the housing | casing of a waterproof structure so that it may be suitable for outdoor installation. In this case, the state of the switch can be switched without opening the lid of the waterproof casing, so that the workability of switching between valid / invalid of a specific function is excellent. Moreover, since it is not necessary to open and close the lid of the waterproof casing on the user side, there is no possibility that the waterproof property is impaired. This eliminates the need for a waterproof structure for the housing that does not reduce the waterproofing accuracy by opening and closing the lid, and can reduce manufacturing costs.

  The electronic device may be a high frequency device that processes a high frequency signal. Furthermore, an externally connectable input connector for inputting a high frequency signal, a signal processing unit for processing the high frequency signal input by the input connector, and an externally connectable output for outputting the high frequency signal processed by the signal processing unit And the specific function is an energization function for transmitting power supplied from an external power source externally connected to the output connector to an external device externally connected to the input connector. .

  Further, instead of loading the connector, a short circuit of the connector may be used.

  According to the electronic device according to the present invention, the validity / invalidity of a specific function is switched by switching between open / load or open / short of an externally connectable connector. Therefore, the validity / invalidity of a specific function can be easily switched. it can.

  Embodiments of the present invention will be described below with reference to the drawings. Here, as an electronic apparatus according to the present invention capable of switching between valid / invalid of a specific function, a mixer with an energizing switch function will be described as an example.

  FIG. 1 shows an example of the configuration of a mixer with an energizing switch function according to the present invention. FIG. 1 shows a configuration in which a booster 102A is interposed between the first input connector 1 of the mixer and the UHF antenna 101A. The booster 102A is provided when the level of the received signal at the UHF antenna 101A is low. In FIG. 1, the same parts as those in FIG. 6 are denoted by the same reference numerals, and detailed description thereof is omitted. A mixer 100 with an energizing switch function according to the present invention shown in FIG. 1 is obtained by removing the slide switch SW1 from the conventional mixer 600 with an energizing switch function shown in FIG. 6, and a resistor 10, a photocoupler 11, and an energizing switch function connector 12. And the 1 pole single throw mechanical relay 13 is provided newly. Further, when the power supplied from the power supply unit 103 externally connected to the output connector 7 is AC power, a diode is interposed between the high frequency blocking coil 8 and the resistor 10 and the photocoupler 11 as shown in FIG. A rectifying / smoothing circuit constituted by a capacitor may be provided.

  Moreover, the mixer 100 with an energizing switch function according to the present invention shown in FIG. 1 is an outdoor specification mixer, and its components are stored in a waterproof casing (not shown) configured by die casting. The first input connector 1, the second input connector 2, the output connector 7, and the energization switch function connector 12 are arranged so as to be externally connectable. In order to secure the waterproofness of the connector portion, the first input connector 1, the second input connector 2 and the output connector 7 are waterproof connectors, or the first input connector 1 and the second input connector 2 are used. A waterproof cap may be attached to the output connector 7. For example, F plugs can be used for the first input connector 1, the second input connector 2, the output connector 7, and the energization switch function connector 12.

  When the energizing switch function connector 12 is open, the photocoupler 11 is turned off, and no voltage is supplied to the relay coil of the one-pole single-throw mechanical relay 13, so the relay switch of the one-pole single-throw mechanical relay 13 is turned off. Thus, the DC power or AC power supplied from the power supply unit 103 externally connected to the output connector 7 is not supplied to the first input connector 1, and the energization function is disabled. In this way, when the energization function is disabled, it is not necessary to provide the booster 102A.

  On the other hand, when the dummy resistor 105 is externally connected to the energizing switch function connector 12 and the energizing switch function connector 12 is loaded, the photocoupler 11 is turned on, and a voltage is applied to the relay coil of the single pole single throw mechanical relay 13. Therefore, the relay switch of the single-pole single-throw mechanical relay 13 is turned ON, and DC power or AC power supplied from the power supply unit 103 connected to the output connector 7 is supplied to the first input connector 1 and energized. The function is enabled. That is, as shown in FIG. 1, a booster 102A is provided between the UHF antenna 101A and the first input connector 1, the power is supplied to the booster 102A, and the received signal received by the UHF antenna 101A is received by the booster 102A. Amplified and transmitted to the first input connector 1. When the dummy resistor 105 is externally connected to the energizing switch function connector 12 in this way, a waterproof cap may be attached to the dummy resistor 105 in order to ensure waterproofness.

  According to the mixer 100 with an energizing switch function according to the present invention shown in FIG. 1, the energizing function is enabled / disabled by switching the open / load of the energizing switch function connector 12, so that the energizing function is easily enabled / disabled. Can be switched to. In addition, since the energization function can be switched between valid / invalid without opening the lid of the waterproof casing, the workability of switching the energization function between valid / invalid is excellent. In addition, since it is not necessary for the user to open and close the lid of the waterproof casing, the waterproof performance at the time of product shipment is maintained. This eliminates the need for a waterproof structure for the housing that does not reduce the waterproofing accuracy by opening and closing the lid, and can reduce manufacturing costs.

  For example, a general 75Ω resistor may be used as the resistor R1 of the dummy resistor 105. 7 may be used instead of the dummy resistor 105 to enable / disable the energization function by opening / shorting the energization switch function connector 12.

  In the above-described embodiment, the combination of the photocoupler 11 and the single-pole single-throw mechanical relay 13 is used to ensure isolation. However, the present invention is not limited to this, and a transistor, a photo MOS relay, an FET It is also possible to use various semiconductor switches. For example, as in the mixer 200 with an energizing switch function according to the present invention shown in FIG. 2, the PNP transistor 14 is used, and the base of the PNP transistor 14 is connected to the energizing switch function connector 12 through the resistor 15 to prevent high frequency. The emitter of the PNP transistor 14 is connected to the output connector 7 via the coil 8 for connection, the collector of the PNP transistor 14 is connected to the first input connector 1 via the coil 9 for preventing high frequency, and between the base and emitter of the PNP transistor 14 The resistor 10 may be provided in the configuration.

  Further, when the booster 102B for amplifying the received signal of the UHF antenna 101B is provided between the UHF antenna 101B and the second input connector 2, like the mixer 300 with an energizing switch function according to the present invention shown in FIG. The first input connector 1 is provided with high-frequency blocking coils 8 and 9, a resistor 10, a photocoupler 11, an energizing switch function connector 12, and a 1-pole single-throw mechanical relay 13. Similarly to switching the open / load of the energizing switch function connector 12 by connection, the high frequency blocking coil 9 ', the resistor 10', the photocoupler 11 ', and the energizing switch function connector are connected to the second input connector 2. 12 'and 1-pole single-throw mechanical relay 13' are provided, and energization is performed by connecting / disconnecting dummy resistor 105 '. It may switch the open / load of the switch function for the connector 12 '. As a result, the energization function can be switched between valid / invalid for each input connector. Further, when the power supplied from the power supply unit 103 externally connected to the output connector 7 is AC power, as shown in FIG. 3, the high frequency blocking coil 8 and the resistors 10, 10 ′ and the photocouplers 11, 11 It is preferable to provide a rectifying / smoothing circuit composed of a diode and a capacitor.

  In addition, by properly using dummy resistors having different resistance values, it is possible to perform various kinds of switching with the power switch function connector. For example, the energizing switch function connector 12 ′ is removed from the energizing switch function mixer 300 shown in FIG. 3 like the energizing switch function mixer 400 according to the present invention shown in FIG. 17 and the voltage detection circuit 18 may be newly provided. Further, when the power supplied from the power supply unit 103 externally connected to the output connector 7 is AC power, as shown in FIG. 4, the high frequency blocking coil 8, resistors 10, 10 ′ and photocouplers 11, 11 are used. It is preferable to provide a rectifying / smoothing circuit composed of a diode and a capacitor.

  In the mixer 400 with the energizing switch function according to the present invention shown in FIG. 4, when the energizing switch function connector 12 is open, the voltage detection circuit 18 detects about 10 V, and the photocoupler is based on the detected voltage value. 11 and the anode of the photocoupler 11 ′ are opened. As a result, an energization function for transmitting DC power or AC power supplied from the power supply unit 103 externally connected to the output connector 7 to the booster 102 </ b> A externally connected to the first input connector 1, externally connected to the output connector 7. Both the energization functions for transmitting DC power or AC power supplied from the power supply unit 103 to the booster 102B externally connected to the second input connector 2 are disabled. In such a switch state, the boosters 102A and 102B need not be provided between the UHF antennas 101A and 101B and the input connectors 1 and 2, respectively.

  Further, in the mixer 400 with energizing switch function according to the present invention shown in FIG. 4, when the 1 kΩ dummy resistor 105 is externally connected to the energizing switch function connector 12, the voltage detection circuit 18 is about 0.9 V (≈ 10 × 1 / (10 + 1) V) is detected, and based on the detected voltage value, the anode of the light emitting diode of the photocoupler 11 is grounded and the anode of the light emitting diode of the photocoupler 11 ′ is opened. As a result, the energization function for transmitting DC power or AC power supplied from the power supply unit 103 externally connected to the output connector 7 to the booster 102A externally connected to the first input connector 1 becomes effective. The energization function for transmitting DC power or AC power supplied from the externally connected power supply unit 103 to the booster 102B externally connected to the second input connector 2 becomes invalid. In such a switch state, the booster 102A is interposed between the UHF antenna 101A and the first input connector 1, and the booster 102A amplifies the received signal received by the UHF antenna 101A and then transmits it to the first input connector 1. .

  Further, in the mixer 400 with energizing switch function according to the present invention shown in FIG. 4, when the 2 kΩ dummy resistor 105 is externally connected to the energizing switch function connector 12, the voltage detection circuit 18 is about 1.6V (≈ 10 × 2 / (10 + 2) V) is detected, and the anode of the light emitting diode of the photocoupler 11 is opened based on the detected voltage value, and the anode of the light emitting diode of the photocoupler 11 ′ is grounded. As a result, the energization function for transmitting DC power or AC power supplied from the power supply unit 103 externally connected to the output connector 7 to the booster 102A externally connected to the first input connector 1 is invalidated. The energization function of transmitting DC power or AC power supplied from the externally connected power supply unit 103 to the booster 102B externally connected to the second input connector 2 becomes effective. In such a switch state, the booster 102B is interposed between the UHF antenna 101B and the second input connector 2, and the received signal received by the UHF antenna 101B is amplified by the booster 102B and then transmitted to the second input connector 2. .

  Further, in the mixer 400 with energizing switch function according to the present invention shown in FIG. 4, when the 3 kΩ dummy resistor 105 is externally connected to the energizing switch function connector 12, the voltage detection circuit 18 is about 2.3 V (≈ 10 × 3 / (10 + 3) V) is detected, and based on the detected voltage value, the anode of the light emitting diode of the photocoupler 11 is grounded, and the anode of the light emitting diode of the photocoupler 11 ′ is also grounded. As a result, an energization function for transmitting DC power or AC power supplied from the power supply unit 103 externally connected to the output connector 7 to the booster 102 </ b> A externally connected to the first input connector 1, externally connected to the output connector 7. Both energization functions for transmitting DC power or AC power supplied from the power supply unit 103 to the booster 102B externally connected to the second input connector 2 are effective. In such a switch state, the boosters 102A and 102B are interposed between the UHF antennas 101A and 101B and the input connectors 1 and 2, respectively, and the received signals received by the UHF antennas are amplified by the boosters and then the input connectors. Transmit to.

  The specific function that the electronic device according to the present invention can switch between valid / invalid is not limited to the energization function. For example, the mixer 500 with the attenuation switch function according to the present invention shown in FIG. 5 removes the high-frequency blocking coil 9 and the single pole single throw mechanical relay 13 from the mixer 100 with the conduction switch function according to the present invention shown in FIG. A two-pole double-throw mechanical relay 19, a π-type attenuator 20, and a through circuit 21 are newly provided, and have an attenuation function for attenuating the received signal of the UHF antenna 101A input by the first input connector 1. It is a mixer that can be switched between valid and invalid. In the mixer 500 with the attenuation switch function according to the present invention shown in FIG. 5, the connector 12 is not an energization switch function connector but an attenuation switch function connector.

  In the mixer 500 having the attenuation switch function according to the present invention shown in FIG. 5, when the attenuation switch function connector 12 is open, the photocoupler 11 is turned OFF, and the voltage is applied to the relay coil of the two-pole double-throw mechanical relay 19. Not supplied. The two-pole double-throw mechanical relay 19 selects the through circuit 21 side when no voltage is supplied to the relay coil. Therefore, when the attenuation switch function connector 12 is open, the attenuation function for attenuating the received signal of the UHF antenna 101A input by the first input connector 1 becomes invalid. In such a switch state, the received signal of the UHF antenna 101 </ b> A input to the first input connector 1 is supplied to the input side of the mixer 5 through the through circuit 21.

  On the other hand, when the dummy switch 105 is externally connected to the attenuation switch function connector 12 and the attenuation switch function connector 12 is loaded, the photocoupler 11 is turned on, and a voltage is applied to the relay coil of the two-pole double-throw mechanical relay 19. Supplied. The double pole double throw mechanical relay 19 selects the attenuator 20 side when voltage is supplied to the relay coil. Therefore, when the attenuation switch function connector 12 is a load, the attenuation function for attenuating the received signal of the UHF antenna 101A input by the first input connector 1 is effective. In such a switch state, the received signal of the UHF antenna 101A input to the first input connector 1 is attenuated by the attenuator 20 and then supplied to the input side of the mixer 5.

  In the above description, the present invention is applied to a mixer. However, the electronic device according to the present invention is not limited to this, and can be applied to all electronic devices capable of switching between valid / invalid of a specific function. is there.

These are figures which show the example of 1 structure of the mixer with an electricity switch function which concerns on this invention. These are figures which show the other structural example of the mixer with an electricity switch function which concerns on this invention. These are figures which show the further another structural example of the mixer with an electricity switch function which concerns on this invention. These are figures which show the further another structural example of the mixer with an electricity switch function which concerns on this invention. These are figures which show one structural example of the mixer with an attenuation | damping switch function based on invention. These are figures which show one structural example of the conventional mixer with an electricity switch function. These are figures which show the structure of a short element.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st input connector 2 2nd input connector 3, 4, 6 DC blocking capacitor 5 Mixer 5
7 Output connector 7
8, 9, 9 'High-frequency blocking coil 10, 10', 15-17 Resistance 11, 11 'Photocoupler 12 Energizing switch function connector, attenuation switch function connector 12' Energizing switch function connector 13, 13 '1 pole Single throw mechanical relay 14 PNP transistor 18 Voltage detection circuit 19 Two-pole double throw mechanical relay 20 Attenuator 21 Through circuit 100, 200, 300, 400 Mixer with energizing switch function according to the present invention 500 Mixing with attenuation switch function according to the present invention Unit 101A, 101B UHF antenna 102A, 102B Booster 103 Power supply unit 104 TV receiver 105, 105 'Dummy resistor R1 resistor

Claims (5)

An externally connectable connector;
A switch that changes state according to an external connection state that is either open or load of the connector;
An electronic device characterized in that the validity / invalidity of a specific function is switched in accordance with switching of the state of the switch.   The electronic device according to claim 1, wherein the electronic device is stored in a waterproof casing.   The electronic device according to claim 1, wherein the electronic device is a high-frequency device that processes a high-frequency signal. An externally connectable input connector for inputting high-frequency signals;
A signal processing unit for processing a high-frequency signal input by the input connector;
An externally connectable output connector that outputs a high-frequency signal processed by the signal processing unit,
The said specific function is an electricity supply function which transmits the electric power supplied from the external power supply connected externally to the said output connector to the external apparatus connected externally to the said input connector. Electronic equipment.   The electronic device according to claim 1, wherein a short circuit of the connector is used instead of the loading of the connector.

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