JP2003323947A - Power connector device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power connector device capable of preventing breakage of an electrical apparatus by preventing output of a power supply voltage other than that required by the electrical apparatus in an electric power unit when connecting the electrical apparatus to the electric power unit. <P>SOLUTION: When supplying an output voltage of the electric power unit to the electrical apparatus, a recessed part 11 of a power receiving connector 10 and an output voltage switching knob 2 of an output connector 1 are fit together to completely join the power receiving connector 10 and the output connector 1. By this, in the electric power unit, a voltage corresponding to a position of the output voltage switching knob 2 is outputted as the required power supply voltage to the electrical apparatus. Since the power receiving connector 10 and the output connector 1 are not completely joined when the recessed part 11 and the output voltage switching knob 2 are not fit together, no output voltage of the electric power unit is supplied to the electrical apparatus. Accordingly, the breakage of the electrical apparatus can be prevented. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply connector device for connecting a power supply device that generates a power supply voltage and an electric device that receives the power supply voltage from the power supply device.

[0002]

2. Description of the Related Art Conventionally, there has been known a power supply device configured so that a set value of an output voltage can be switched by a voltage setting switch to supply respective power supply voltages to electric devices having different rated voltages. When supplying a power supply voltage to an electric device using such a power supply device, the user operates the voltage setting switch of the power supply device to match the output voltage of the power supply device with the rated voltage of the electric device. However, if the setting by the voltage setting switch is wrong and the output voltage of the power supply exceeds the rated voltage of the electric equipment, the electric equipment is supplied with the power supply voltage exceeding the rated voltage, and In this case, the electric device may be damaged, and a safety problem may occur.

Therefore, in order to solve the above problems, for example, a safety device for a power supply device is disclosed in Japanese Patent Laid-Open No. 7-231562. In this prior art, a device connector for receiving an external connector is provided in the power supply device, and a signal that sets the output voltage from the output voltage changeover switch in the power supply device and an output voltage setting that determines which output voltage is selected from the device connector Upon receiving the confirmation signal, the two signals are compared, and the power supply device outputs the power supply voltage only when they match.

[0004]

However, even in the above-mentioned prior art, there is a possibility that the user may connect the wrong external connector to the device connector unless consideration is given to the arrangement of the power supply device and the electric equipment and the arrangement of the connector. As a result, the power supply device may output a power supply voltage exceeding the rated voltage of the electric device, which may cause damage to the electric device.

The present invention has been made to solve the above problems, and when connecting electric equipment to a power supply device,
It is an object of the present invention to provide a power supply connector device capable of preventing a power supply device from outputting a power supply voltage other than that desired by an electric device, thereby preventing damage to the electric device.

[0006]

In order to solve such a problem, the invention of claim 1 connects a power supply device for generating a power supply voltage and an electric device for receiving the power supply voltage from the power supply device. In the connector device, an output connector connected to the power supply device side and having a movable output voltage switching knob for switching the output voltage of the power supply device at a mechanical position; A power receiving connector having a positioning mechanism for positioning the output voltage switching knob to receive a desired voltage to be supplied to the device from the output connector, and the output voltage when the power receiving connector is joined to the output connector. By positioning the switching knob by the positioning mechanism, the output voltage of the power supply device is switched to a desired voltage for the electric device. To provide a power supply connector device characterized by being configured.

According to the first aspect of the invention, when the output voltage of the power supply device is supplied to the electric device, the positioning mechanism of the power receiving connector and the output voltage switching knob of the output connector are fitted to each other. The power receiving connector and the output connector are completely joined. Accordingly, in the power supply device, the voltage corresponding to the position of the output voltage switching knob positioned by the positioning mechanism is output as the desired power supply voltage to the electric device.

However, when the positioning mechanism and the output voltage switching knob are not fitted, the output voltage of the power supply device is not supplied to the electric equipment because the power receiving connector and the output connector are not completely joined. By providing the positioning mechanism and the output voltage switching knob in this manner, the power receiving connector and the output connector are not accidentally joined, and the power supply voltage other than the desired one is not supplied to the electric device. It is possible to prevent damage to electric equipment.

According to a second aspect of the present invention, in the power supply connector device according to the first aspect, a slide contact for switching the resistance associated with the setting of the output voltage of the power supply device as the output voltage switching knob moves. Is provided on the output voltage switching knob, so that when the output voltage switching knob moves, the slide contact slides to switch the resistance. Therefore, the output voltage of the power supply device can be set by the resistance information corresponding to the position of the output voltage switching knob. For example, the output voltage of the power supply voltage is 3V, 5V.
It is possible to switch to an accurate voltage in steps such as V, 9V, 10V.

According to a third aspect of the present invention, in the power supply connector device according to the first aspect, a variable resistor for varying a resistance associated with setting of the output voltage of the power supply device as the output voltage switching knob moves. Since the resistor is provided in association with the output voltage switching knob, the resistance of the variable resistor is continuously switched when the output voltage switching knob moves. Therefore, the output voltage of the power supply device can be set in many types by the resistance information corresponding to the position of the output voltage switching knob, and the versatility of the power supply device is enhanced.

According to a fourth aspect of the present invention, in the power supply connector device according to the first aspect, after the output voltage switching knob and the positioning mechanism are fitted to each other, the joining of the output connector and the power receiving connector is confirmed. Since the joint confirmation mechanism used for this purpose is provided over both the output connector and the power receiving connector, the output voltage switching knob and the positioning mechanism are fitted when the state of the joint confirmation mechanism is seen. Thus, it can be confirmed whether or not the output connector and the power receiving connector are completely joined.

According to a fifth aspect of the present invention, in the power supply connector device according to the fourth aspect, at least two joining confirmation mechanisms are provided over both the output connector and the power receiving connector, and these two joining portions are joined together. By connecting a line that short-circuits between the confirmation mechanisms on the power receiving connector side and controls ON / OFF of the output of the power supply device between the two joining confirmation mechanisms on the output connector side, the power supply device Since the output is turned on / off, the output of the power supply device is turned on when the output connector and the power receiving connector are completely joined, and the output connector and the power receiving connector are joined. If not, or if not completely joined, the output of the power supply is turned off. Therefore, since a voltage exceeding the rated voltage is not applied to the electric device that receives the output voltage from the power supply device, it is possible to prevent the electric device from being damaged.

According to a sixth aspect of the invention, in the power supply connector device according to the fourth aspect, the joint confirmation mechanism is a clamper fitting for fixing the output connector and the power receiving connector on the power receiving connector side. On the output connector side, there is a joining confirmation terminal that comes into contact with the clamper fitting when the output connector and the power receiving connector are fixed. Therefore, the clamper metal fitting prevents the output connector and the power receiving connector from being easily separated from each other by vibration or the like. Further, since the clamper fitting can be used as a substitute for the joining confirmation plug, the structure is simplified and the manufacturing cost can be reduced.

According to a seventh aspect of the present invention, in the power connector device according to the fourth aspect, the joint confirmation mechanism is a clamper fitting for fixing the output connector and the power receiving connector on the power receiving connector side. On the output connector side, there is a joining confirmation terminal which comes into contact with the clamper metal fitting through a screw when the output connector and the power receiving connector are fixed. Therefore, the output connector and the power receiving connector,
As a result, the connectors are firmly fixed by the screws, so that the connectors are securely joined.

According to an eighth aspect of the present invention, in the power supply connector device according to the fifth aspect, the lines are a control terminal of a transistor that controls on / off of the output of the power supply device and a negative output line of the power supply device. Is a conductive line that passes through a joint confirmation mechanism that is connected via a lead wire. Therefore, when the bonding confirmation mechanism is not connected to the line, the transistor operates to turn off the output of the power supply device, and when the bonding confirmation mechanism is connected to the line, The transistor operates to turn on the output of the power supply.

According to a ninth aspect of the present invention, in the power supply connector device according to the fifth aspect, the line is a control terminal of a transistor connected between a positive side output line of a power supply voltage and a positive side output terminal. , A conductive line that passes through a joint confirmation mechanism that is connected via a lead wire between the negative side output line of the power supply voltage. Therefore, when the bonding confirmation mechanism is not connected to the line, the transistor operates to turn off the output of the power supply device, and when the bonding confirmation mechanism is connected to the line, The transistor operates to turn on the output of the power supply.

According to a tenth aspect of the present invention, in the power supply connector device according to the first aspect, the top of the output voltage switching knob in the output connector is a protrusion having a substantially triangular shape, and the positioning mechanism in the power receiving connector is The bottom is a recess having a substantially triangular recess. According to this configuration, when the output connector and the power receiving connector are joined together, the output voltage switching knob is fitted into the positioning mechanism, and the output voltage of the power supply device is automatically adjusted to the desired voltage value of the electric device. Is set, and the troublesomeness of the voltage setting operation by the user is eliminated.

According to the invention of claim 11, in the power supply connector device according to claim 1, when the electric equipment requires a plurality of different power supply voltages and the power supply device outputs a plurality of different voltages, the output voltage is Since the number of the switching knobs and the number of positioning mechanisms are provided corresponding to the number of the power supply voltages, it is easy to set a plurality of output voltages of the power supply device for an electric device that requires a plurality of different power supply voltages. it can.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing a main configuration of a power supply connector device according to an embodiment corresponding to the invention of claim 1. As shown in FIG. 1, this power supply connector device includes an output connector 1 and a power receiving connector 10.

The output connector 1 has a case 1a having a substantially rectangular parallelepiped shape, and a slit hole 3 formed in a slit shape is provided on the front surface of the case 1a. The slit hole 3 is provided with an output voltage switching knob 2 which can be slid along the hole. The position of the output voltage switching knob 2 is determined by sliding the slit hole 3, and the output voltage of the power supply device is set. The position information indicating the position of the output voltage switching knob 2 is transmitted to the power supply device via the position information transmission lines 6 and 7, and in response to this, the power supply device outputs a voltage corresponding to the position information. , To output connector 1 via output leads 4, 5.

Further, on the front surface of the case 1a of the output connector 1, there are provided plug insertion holes 8 and 9 each having a terminal (not shown) therein. These terminals are connected to the output lead wires 4 and 5, respectively, and are inserted into the plug insertion holes 8 and 9 to the plug 12 of the power receiving connector 10 which will be described later.
By inserting 13, the output voltage of the power supply device is transmitted to the plugs 12, 13.

The power receiving connector 10 has a case 10a having a substantially rectangular parallelepiped shape, and the output voltage switching knob 2 is positioned on the front surface of the case 10a in order to take out a desired voltage from the power supply device via the output connector 1. A concave portion (hole) 11 for performing the above is provided, and plugs 12 and 13 that come into contact with terminals provided inside the plug insertion holes 8 and 9 of the output connector 1 are provided. The output voltage from the output connector 1 received by the plugs 12 and 13 is the lead wire 1
It is transmitted to the electric device via 4, 15.

The recess 11 is preset at a position where a desired voltage is supplied to the electric device. That is, the output voltage switching knob 2 of the output connector 1 is fixed at the position inserted into the recess 11, and the voltage set by the output voltage switching knob 2 at this position is transmitted to the plugs 12 and 13. If the position is determined, a desired voltage can be supplied to the electric device. Therefore, the position of the concave portion 11 is preset according to the power supply voltage (rated voltage) of the electric device.

When the positions of the output voltage switching knob 2 of the output connector 1 and the recess 11 of the power receiving connector 10 do not match, the output connector 1 and the power receiving connector 10 are joined as indicated by the chain double-dashed line in FIG. Therefore, the user needs to adjust the output voltage switching knob 2 so that both connectors 1 and 10 are matched.
Adjust the position of by sliding along the slit hole 3.
Therefore, a desired voltage is supplied to the electric device connected to the power receiving connector 10.

The plug insertion hole 8 of the output connector 1,
9 and the plugs 12 and 13 of the power receiving connector 10 also have a function of improving the positioning accuracy in the joined state of the output connector 1 and the power receiving connector 10. Further, in order to improve such positioning accuracy, a hole may be separately provided on the front surface of the case 1a of the output connector 1 and a positioning protrusion may be provided on the front surface of the case 10a of the power receiving connector 10.
Conversely, a positioning protrusion may be provided on the front surface of the case 1a of the output connector 1 and a hole may be provided on the front surface of the case 10a of the power receiving connector 10.

Regarding the positioning of the output voltage switching knob 2 in the output connector 1, a recess is provided on the top of the output voltage switching knob 2, and a projection that fits into the recess is provided on the front surface of the case 10a of the receiving connector 10. The position of the output voltage switching knob 2 may be determined by this.

As described above, according to this embodiment,
The output voltage switching knob 2 provided on the output connector 1 represents the set value of the output voltage of the power supply device, and the position of the recess 11 of the power receiving connector 10 represents the desired power supply voltage. Unless the connector 2 and the recess 11 are fitted together, the connectors 1 and 10 are not joined together, and the output voltage switching knob 2 and the recess 11 are fitted together first when the connectors 1 and 10 are joined together. After that, power transmission terminals 30 and 31 and power transmission plugs 32 and 33, which will be described later,
The power supply device cannot output a voltage other than the required value of the electric equipment by adopting the configuration (see FIG. 4) in which the connection between the power supply device and the power supply device starts the connection.

In the conventional power supply connector device, in order to prevent damage to electric equipment due to voltage mismatch of the power supply device,
In most cases, the use is designated to be dedicated to a predetermined specific electric device, but in the power supply connector device of the present embodiment, the position of the output voltage switching knob of the output connector and the recess of the power receiving connector are set. As long as the reference for the voltage representation with the position is the same, it is not necessary to specify the exclusive use like the conventional power supply connector device, and it can be used for other electric devices.

Further, when the electric equipment in use breaks down due to wear or the like and cannot be repaired and the electric equipment is discarded, conventionally, a power supply connector device dedicated to the electric equipment is not necessary and the electric equipment is not used. The power connector device had to be discarded together with the device, which was a waste of resources, but the power connector device of the present embodiment has versatility that it can be used for other electric devices. No need to discard.

Therefore, the power supply connector device of this embodiment can be sold separately from the electric equipment, and a market can be formed which can be sold alone. In addition, since this power supply connector device is released from the specialization for each electric device, it is possible to unify the models and expect to reduce the manufacturing cost due to mass production.

FIG. 2 is a sectional view showing the internal structure of an output connector which employs an output voltage switching knob according to an embodiment corresponding to the invention of claim 2. In FIG. 2A is a cross-sectional view of the output connector 1 as viewed from the side, and FIG.
It is sectional drawing which looked at the inside from the slide contact 23 shown in (a).

In FIG. 2, the case 1 of the output connector 1
Inside the a, the insulating plate 70, the common contact 24 fixed to the insulating plate 70, the contact 16 fixed to the insulating plate 70,
17, 18, 19 and a resistor 20 connected between the contacts 16 and 17, and a resistor 21 connected between the contacts 17 and 18,
A resistor 22 connected between the contacts 18 and 19 is provided. These resistors 20, 21, 22 are resistors related to the setting of the output voltage of the power supply device.

One side of the output voltage switching knob 2 has a case 1a.
On the other side, the thickness is smaller than the vertical width of the slit hole 3 inside the case 1a, and is housed in the case 1a. A slide contact 23 is fixed to the other end surface of the output voltage switching knob 2. The slide contact 23 moves in accordance with the sliding movement of the output voltage switching knob 2 in the slit hole 3, and the insulating plate 7
Common contact 24 fixed to 0 and contacts 16, 17, 1
It slides while contacting between 8 and 19.

With this configuration, when the output voltage switching knob 2 is slid, it comes into contact with any of the contacts 16, 17, 18, and 19, so that the position information of the output voltage switching knob 2 is the resistances 20, 21, and 22. Will be converted into resistance information related to and transmitted to the power supply device via the position information transmission lines 6 and 7. Therefore, the power supply device sets the voltage based on the transmitted resistance information and can supply the desired voltage to the electric device connected to the power receiving connector 10 (see FIG. 1) via the output connector 1. it can. In this case, the output voltage of the power supply device is, for example, 3V, 5V, 9V,
It is possible to switch to an accurate voltage such as 10 V in steps.

In the present embodiment, the resistance is switched in four stages, but if the number of contacts is increased as necessary, the number of switching stages can be increased accordingly.

FIG. 3 is a sectional view showing the internal structure of an output connector which employs an output voltage switching knob according to an embodiment corresponding to the invention of claim 3. 3A is a cross-sectional view of the output connector 1 as seen from the side surface, and FIG.
It is sectional drawing which looked at the inside from the slide contact 23 shown in (a).

In FIG. 3, the case 1 of the output connector 1
Inside a, an insulating plate 70, a common contact 24 fixed to the surface of the insulating plate 70, and a resistance film 25 fixed to the surface of the insulating plate 70 are provided. The resistance film 25, the common contact 24, and the slide contact 23 constitute a variable resistor, and this variable resistor serves as a resistance related to the setting of the output voltage of the power supply device.

One side of the output voltage switching knob 2 has a case 1a.
On the other side, the thickness is smaller than the vertical width of the slit hole 3 inside the case 1a, and is housed in the case 1a. A slide contact 23 is fixed to the other end surface of the output voltage switching knob 2. The slide contact 23 moves in accordance with the sliding movement of the output voltage switching knob 2 in the slit hole 3, and the insulating plate 7
The common contact 24 fixed to 0 and the resistance film 25 are slid while making contact with each other.

With this configuration, when the output voltage switching knob 2 is slid, the slide contact 23 slides between the common contact 24 and the resistance film 25, whereby the resistance value between the common contact 24 and the resistance film 25 changes. Therefore, the position information of the output voltage switching knob 2 is converted into resistance information related to its resistance value and transmitted to the power supply device via the position information transmission lines 6 and 7. Therefore, the power supply device sets the voltage based on the transmitted resistance information and can supply the desired voltage to the electric device connected to the power receiving connector 10 (see FIG. 1) via the output connector 1. it can. Further, since the output connector 1 is provided with the variable resistor described above, it is possible to continuously switch the output voltage of the power supply device.

FIG. 4 shows an output connector 1 which employs the joint confirmation mechanism according to the embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a main part in a state where the power receiving connector 10 and the power receiving connector 10 are joined. In addition to the above-described output voltage switching knob 2, the power transmission terminal 30 to which the output lead wire 4 is connected, the power transmission terminal 31 to which the output lead wire 5 is connected, the output connector 1 also includes a lead wire. Two
A joining confirmation terminal 34 to which 6 is connected and a joining confirmation terminal 35 to which the lead wire 27 is connected are provided.

In addition to the recess 11 into which the output voltage switching knob 2 is fitted, the power transfer plug 32 connected to the lead wire 15, and the power transfer plug 33 connected to the lead wire 14, the power receiving connector 10 is provided. A connection confirmation plug 36 to which the lead wire 28 is connected and a connection confirmation plug 37 to which the lead wire 29 is connected are provided.

The joining confirmation mechanism in this embodiment means the joining confirmation terminals 34 and 35 and the joining confirmation plugs 36 and 37.

In a state where the output connector 1 and the power receiving connector 10 are joined, the output voltage switching knob 2 has the recess 11
In addition, the power transfer plugs 32 and 33 are connected to the power transfer terminal 3
Bonding confirmation plugs 36 and 37 are fitted to the bonding confirmation terminals 34 and 35, respectively. In particular, since the joining confirmation plugs 36 and 37 and the joining confirmation terminals 34 and 35 are added, it is possible to confirm whether or not the output connector 1 and the power receiving connector 10 are joined correctly.

Here, the fitting distance between the power transmission terminals 30 and 31 and the power transmission plugs 32 and 33 is d3, and the joining confirmation terminals 34 and 35 and the joining confirmation plug 3 are provided.
The fitting distance between 6, 37 is d1, and the output voltage switching knob 2
Letting the fitting distance between the recess 11 and the recess 11 be d2, the fitting distances have a relationship of d3>d2> d1. Therefore,
When connecting the output connector 1 and the power receiving connector 10,
First, the power transfer terminals 30 and 31 and the power transfer plugs 32 and 33 contact each other, and then the output voltage switching knob 2
And the recess 11 are fitted together, and finally the terminal 3 for confirming the joint
4, 35 and the contact confirmation plugs 36, 37 come into contact with each other.

When the joining confirmation terminals 34 and 35 and the joining confirmation plugs 36 and 37 come into contact with each other, the lead wires 28 and 29, the joining confirmation plugs 36 and 37, the joining confirmation terminals 34 and 35, and the lead wires 26 and 27. A connection confirmation signal from the electric device is sent to the power supply device via each of the above, and thereby the power supply device confirms that the output connector 1 and the power receiving connector 10 are accurately connected.

After this confirmation, the power supply device outputs the output voltage switching knob 2 when the output voltage switching knob 2 is fitted in the recess 11.
Select the output voltage corresponding to the position of
5, power transmission terminals 30 and 31, power transmission plug 3
The voltage is output to the electric device via the wires 2, 33 and the lead wires 15, 14. That is, the power supply device outputs the voltage to the electric device after completely determining the output voltage, and the safety for the electric device is improved.

Even when the joining confirmation terminals 34, 35 and the joining confirmation plugs 36, 37 are not provided, the output voltage switching knob 2 and the concave portion 11 are first connected to each other when the output connector 1 and the power receiving connector 10 are joined. Must be fitted, and after that, a structural ingenuity is required so that the power transmission terminals 30, 31 and the power transmission plugs 32, 33 start contact. Without such a structure, the power supply device outputs a voltage before the output voltage is determined, and if this voltage exceeds the rated voltage of the electric device, the electric device may be damaged.

Further, if the height (projection amount) of the output voltage switching knob 2 is extremely increased, the output voltage switching knob 2 may have a problem that it may be broken due to insufficient mechanical strength. The contact length (distance) between the transmission terminal 30 and the power transmission plug 32, and the contact length (distance) between the power transmission terminal 31 and the power transmission plug 33 are limited, whereby the contact points There is a problem that the resistance value increases and the output current of the power supply device is limited.

However, according to this embodiment, the power transfer terminals 30 and 31 and the power transfer plugs 32 and 33 are firstly placed.
, And the power transmission terminal 30,
Contact length between 31 and power transmission plugs 32, 33 (distance)
However, the resistance value at the contact point can be reduced by canceling the above-mentioned limitation, and the output current of the power supply device can be set to a large value.

Further, the output connector 1 and the power receiving connector 10
At the time of the joining operation with the
Even when the power transmission terminals 30 and 31 and the power transmission plugs 32 and 33 are configured to start contact with each other after that, the connection confirmation terminals 34 and 35 and the connection confirmation plug 36 are formed. , 37, it is possible to realize a configuration capable of double protection of the power supply voltage for the electric device.

By the way, when two joining confirmation mechanisms (a joining confirmation terminal and a joining confirmation plug) are not provided between the output connector 1 and the power receiving connector 10, when the output connector 1 and the power receiving connector 10 are joined. When both connectors 1 and 10 are mounted in a slightly oblique direction, for example, the joining confirmation terminal 34 and the joining confirmation plug 36 are connected before the output voltage switching knob 2 and the recess 11 are completely fitted. May come into contact with each other, which may result in erroneous recognition that the joining of both connectors 1 and 10 is completed.

However, as shown in FIG. 4, when two joining confirmation mechanisms are provided, that is, the joining confirmation mechanism including the joining confirmation terminal 34 and the joining confirmation plug 36, and the joining confirmation terminal 35. When two joint confirmation mechanisms, the joint confirmation mechanism including the joint confirmation plug 37 and the joint confirmation mechanism, are provided, when the output connector 1 and the power receiving connector 10 are jointed, both connectors 1 and 10 are slightly connected. Even if it is mounted from an oblique direction, before the fitting of the output voltage switching knob 2 and the recess 11 is completely completed, the contact between the joining confirmation terminal 34 and the joining confirmation plug 36 and the joining confirmation terminal 35 are performed. The contact with the joint confirmation plug 37 does not occur at the same time, and therefore, it is not mistakenly recognized that the joints of both connectors 1 and 10 are completed.

When the output connector and the power receiving connector have a large front surface area and have, for example, a substantially square shape, a joint confirming terminal and a joint confirming plug as joint confirming mechanisms are provided at four corners of the connector, and these joints are joined together. The power supply device may output the voltage after the confirmation terminals and the joint confirmation plugs are all contacted with each other for a predetermined period of time.

FIG. 5 is a cross-sectional view showing a main part in a state in which the output connector 1 and the power receiving connector 10 which employ the joining confirmation mechanism according to the embodiment corresponding to the invention of claim 6 are joined. The clamper metal fitting 40 formed of a plate material having both elasticity and conductivity has the power receiving connector 10 so as to surround the rear surface and both side surfaces of the power receiving connector 10.
Is stuck to. The holes 41 and 42 provided on both side surfaces of the clamper fitting 40 are fitted with the protrusions 38 and 39 provided on both side surfaces of the output connector 1, so that both connectors 1 and
10 does not easily come off due to vibration or the like.

In the joining confirmation terminals 34 and 35 mounted on the output connector 1, the clamper fitting 40 has the projections 3.
The clamper fitting 40 is brought into contact with the fittings 8 and 39. Therefore, a conduction path is formed via the joining confirmation terminal 34, the clamper fitting 40, and the joining confirmation terminal 35, and the formation of this conduction path is guided to the power supply device via the lead wires 26 and 27. As a result, the power supply device outputs the output voltage when the lead wires 26 and 27 are in the conductive state, and stops the voltage output when the lead wires 26 and 27 are in the non-conductive state.

The output connector 1 and the power receiving connector 10
When the output voltage switching knob 2 (see FIG. 1) and the recessed portion 11 (see FIG. 1) have been fitted together during the joining operation with, the holes 41 and 42 of the clamper fitting 40 and the projections 38 and 39 of the output connector 1 are completed.
The structure and dimension should be taken into consideration so that and fit together.

In the present embodiment, the clamper fitting 40 provided so that both connectors 1 and 10 are not easily disengaged due to vibration or the like is used as a substitute for the above-mentioned joining confirmation terminal and joining confirmation plug. Therefore, the structure is simplified and the manufacturing cost can be reduced.

FIG. 6 is a cross-sectional view showing a main part in a state where the output connector 1 and the power receiving connector 10 which employ the joint confirmation mechanism according to the embodiment corresponding to the invention of claim 7 are joined. The clamper fitting 40 formed of a conductive plate material is fixed to the power receiving connector 10 so as to surround the rear surface and both side surfaces of the power receiving connector 10, and the ends of the both side surfaces have holes of the clamper fitting 40 and the output. Through the hole of the connector 1, a terminal 34 for joining confirmation,
It is fixed by screws 43 and 44 which are in electrical contact with 35.

Holes having female threads engraved on the inner peripheral surface thereof are provided at one ends of the joining confirmation terminals 34, 35 so that the screws 43, 44 can be fitted therein.
By fitting the screws 43 and 44 into the respective holes, both connectors 1 and 10 are prevented from easily coming off due to vibration or the like.

With this configuration, the joining confirmation terminal 34, the screw 43, the clamper fitting 40, the screw 44,
Also, an electrical conduction path is formed via the joining confirmation terminal 35, and the formation of this conduction path is guided to the power supply device via the lead wires 26 and 27. This allows
The power supply device outputs the output voltage when the lead wires 26 and 27 are in the conducting state, and stops the voltage output when the lead wires 26 and 27 are in the non-conducting state.

The output connector 1 and the power receiving connector 10
When the output voltage switching knob 2 (see FIG. 1) and the recessed portion 11 (see FIG. 1) have been fitted together during the joining operation with, the positions of the screw holes of the clamper fitting 40 and the screw holes of the power receiving connector 10 are aligned. The structure should be structurally and dimensionally considered.

In this embodiment, by screwing,
Since both connectors 1 and 10 are more firmly fixed,
It is more complete than the contact between the joining confirmation terminal and the joining confirmation plug described above.

FIG. 7 is a circuit diagram of a power supply device adopting a line according to an embodiment corresponding to the invention of claims 5 and 8. In this power supply device 71, the output side (drain, source) of the FET 45 and the primary winding 47 of the transformer 46 are connected in series, and one end of the secondary winding 48 of the transformer 46 is connected via a diode 49 and a line 81. It is connected to the terminal 59 and the other end of the secondary winding 48 is connected to the terminal 60 via the negative output line 82.

Between the positive side output line 81 and the negative side output line 82, a capacitor 50, a series circuit of a photodiode 51a forming a photocoupler 51, a resistor 52 and a shunt regulator 53, a resistor 54 and a resistor 55 are provided. And a series circuit of a resistor 57 and an equivalent switch 58 are connected. Also, the NPN transistor 5
The collector of 6 is connected to the connection point between the photodiode 51a of the photocoupler 51 and the resistor 52, its base is connected to the connection point of the resistor 57 and the equivalent switch 58, and its emitter is connected to the line 82. . The connection point between the resistor 54 and the resistor 55 is the shunt regulator 53.
It is connected to the reference terminal of.

Next, the operation of the power supply device 71 will be described. When a control signal from a control circuit (not shown) is applied to the gate of the FET 45, the FET 45 performs a switching operation, and as a result, the primary winding 4 of the transformer 46
High-frequency current flows through 7. Thereby, the high frequency voltage generated in the secondary winding 48 of the transformer 46 is rectified and smoothed by the diode 49 and the capacitor 50, and the rectified and smoothed voltage is given between the terminals 59 and 60. Further, the voltage between the terminals 59 and 60 is guided to the output connector 1 via the output lead wires 4 and 5 shown in FIG.

The reference terminal of the shunt regulator 53 receives the voltage between the terminals 59 and 60 from the resistors 54 and 5.
The voltage divided by 5 is given as a reference voltage, the shunt regulator 53 is controlled based on this reference voltage, and the photodiode 51a, the resistor 52, the shunt regulator 5 of the photocoupler 51 are controlled.
3 and the resistors 54 and 55 form a voltage detection circuit, and the detection result of this voltage detection circuit is the photocoupler 5.
1 to a control circuit (not shown). As a result, the control circuit controls the FET 45 based on the detection result, and consequently the output voltage of the power supply device 71 is made constant.

The resistor 55 is provided between the position information transmission lines 6 and 7 shown in FIG. 1 (the resistors 20 and 2 in FIG. 2).
1, 22 and in FIG. 3, it can be set to a desired output voltage of the electric device by replacing it with the resistance film 25).

The equivalent switch 58 includes lead wires 26 and 27 connected to the joining confirmation terminals 34 and 35 (FIG. 4, FIG.
(See FIGS. 5 and 6), which is an equivalent switch showing conduction / non-conduction. This equivalent switch 58 is turned off (lead wire 2
When 6 and 27 are non-conductive, the NPN transistor 56 is turned on by the current led through the resistor 57, and as a result, a large current flows through the photodiode 51a of the photocoupler 51. As a result, the control circuit (not shown) recognizes that the output voltage, which is the voltage between the terminals 59 and 60, has greatly increased, and lowers the output voltage to around 0V.

Therefore, when the output connector 1 and the power receiving connector 10 are not joined or not joined properly, the lead wires 26 and 27 are not electrically connected, and therefore the voltage between the terminals 59 and 60 is not. Is around 0V, and the power supply voltage is not supplied to the electric equipment.

When the equivalent switch 58 is on (conducts between the lead wires 26 and 27), the NPN transistor 56 is turned on.
Is turned off. As a result, only the current driven by the shunt regulator 53 flows through the photodiode 51a of the photocoupler 51, and the voltage set by the resistors 54 and 55 is sent from the terminals 59 and 60.

Therefore, when the output connector 1 and the power receiving connector 10 are correctly joined, the lead wire 2
Since there is continuity between 6 and 27, the terminal 59,
The voltage between 60 becomes a voltage desired by the electric device, and the desired voltage can be supplied to the electric device.

A resistor may be added between the NPN transistor 56 and the photodiode 51a in order to prevent a current exceeding the rated current from flowing through the NPN transistor 56 and the photodiode 51a.

FIG. 8 is a circuit diagram of a power supply device adopting a line according to an embodiment corresponding to claims 5 and 9. In the power supply device 72, an NPN is provided between one output terminal of the DC power supply generation circuit 61 and the output terminal 59.
The collector and the emitter of the transistor 62 are connected, and the base thereof is connected to the line 73 via the resistor 63 and the screw switch 58. DC power supply generation circuit 61
The other output terminal of is connected to the output terminal 60 via the negative output line 73. The output voltage value of the DC power supply generation circuit 61 is the position information transmission lines 6 and 7 (see FIG. 1).
It shall be controlled by resistance information in between.

The equivalent switch 58 includes lead wires 26 and 27 connected to the joining confirmation terminals 34 and 35 (FIG. 4, FIG.
(See FIGS. 5 and 6), which is an equivalent switch showing conduction / non-conduction. This equivalent switch 58 is turned off (lead wire 2
6 and 27 are non-conducting), the base current of the PNP transistor 62 does not flow, so the PNP transistor 62 is turned off and the output voltage of the DC power supply generation circuit 61 is PNP.
Since it is cut off by the transistor 62, no voltage is generated between the terminals 59 and 60. Therefore, when the output connector 1 and the power receiving connector 10 are not correctly joined,
It is highly safe because no voltage is supplied to electrical equipment.

When the equivalent switch 58 is on (conducts between the lead wires 26 and 27), the PNP transistor 62 is connected.
Is turned on, the output voltage of the DC power supply generation circuit 61 is sent from the terminals 59 and 60, and is guided to the output lead wires 4 and 5 (see FIG. 1) to the output connector 1. Therefore, when the output connector 1 and the power receiving connector 10 are properly joined, the lead wires 26 and 27 are electrically connected, and therefore the voltage between the terminals 59 and 60 becomes a voltage desired by the electric device, and the The device can be supplied with the desired voltage.

In the present embodiment, when the connection of the connection confirmation terminal and the connection confirmation plug is turned on and the connection is operating normally, the output current of the DC power supply generation circuit 61 is P.
Since the current flows through the NP transistor 62, collector loss is generated by the PNP transistor 62, and the power conversion efficiency of the power supply device is somewhat deteriorated. However, when the connection confirmation terminal and the connection confirmation plug are off, the PNP transistor 62 is The output of the DC power supply generation circuit 61 can be completely shut off.

On the other hand, in the circuit shown in FIG. 7, when the connection of the connection confirmation terminal and the connection confirmation plug is turned on and is operating normally, a transistor is present on the path of the output current of the DC power supply generation circuit. Because it is not provided,
Although it does not adversely affect the power conversion efficiency of the power supply device, the minimum voltage necessary to drive the NPN transistor 56 remains in the power supply output line when the connection between the connection confirmation terminal and the connection confirmation plug is off. It will be. Most of the electric equipments do not break down with such a residual voltage, but the circuit shown in FIG. 8 is suitable for use in electric equipments that are strictly required to be cut off.

FIG. 9 is a sectional view showing a main part in a state in which the output connector 1 and the power receiving connector 10 according to the embodiment corresponding to the invention of claim 10 are joined. The top of the output voltage switching knob 2 and the recess 1 of the power receiving connector 10
The bottom of 1 has a substantially triangular pointed shape as shown by the solid line, and the position of the output voltage switching knob 2 is determined in a state where the tips of the two coincide with each other. As a result, as described above, the voltage corresponding to the output voltage switching knob 2 is supplied to the electric device.

Next, the power receiving connector 10 is removed from the output connector 1, and the power receiving connector 10a connected to an electric device having another rated voltage is fitted to the output connector 1. Since this other electric device requires a power supply voltage different from that of the previously connected electric device, the bottom of the concave portion of the power receiving connector 10a has a shape indicated by a chain line 66.

This power receiving connector 10a and output connector 1
When joining and, the position of the output voltage switching knob 2 slides to the position shown by the alternate long and short dash line 67, and the power receiving connector 10a
Are fitted to the output connector 1. As a result, the power supply device outputs the voltage by switching to the voltage corresponding to the position of the output voltage switching knob 2, that is, the rated voltage required by another newly connected electric device. The power supply voltage desired by the electric device (the output voltage of the power supply device) can be set in correspondence with the lowest position of the recess in the power receiving connector.

In the embodiment shown in FIG. 1, it is necessary for the user to set the output voltage switching knob to a position corresponding to the voltage value required by the electric device before joining the output connector and the power receiving connector. However, if both connectors are not joined due to an error in the setting position, it is necessary to set them again. On the other hand, in the present embodiment, simply by joining the output connector and the power receiving connector, the output voltage switching knob automatically fits into the recess as described above, and the output voltage is output to a position corresponding to the voltage value required by the electric device. Since the voltage switching knob is set, there is an effect that the user's annoyance is eliminated.

By the way, in general, there are electric devices that require a plurality of power supply voltages. In such a case, for example, an output voltage switching knob corresponding to the number of a plurality of power supply voltages is provided in the output connector, and the electric devices are The power receiving connector is provided with recesses by the number corresponding to the plurality of output voltage switching knobs, and the output voltage switching knobs and the recesses are fitted into each other to set the plurality of power supply voltages to desired voltage values. It is possible (embodiment corresponding to the invention of claim 11). Therefore, it is possible to easily deal with electric equipment that requires a plurality of power supply voltages.

[0083]

As described above, according to the present invention, in the power supply connector device for connecting the power supply device for generating the power supply voltage and the electric equipment for receiving the power supply voltage from the power supply device, the power supply device is connected to the power supply device side. An output connector having a movable output voltage switching knob that is connected to switch the output voltage of the power supply device at a mechanical position; and a desired voltage that is connected to the electric device side and is supplied to the electric device. A power receiving connector having a positioning mechanism for positioning the output voltage switching knob to receive from the output connector, and when the power receiving connector is joined to the output connector, the output voltage switching knob is positioned by the positioning mechanism. Thus, the output voltage of the power supply device is switched to a desired voltage for the electric device.

In such a structure, when the output voltage of the power supply device is supplied to the electric device, the positioning mechanism of the power receiving connector and the output voltage switching knob of the output connector are fitted to each other to connect to the power receiving connector. Completely join the output connector. Thus, in the power supply device, the voltage corresponding to the position of the output voltage switching knob positioned by the positioning mechanism is output as the desired power supply voltage to the electric device.

However, when the positioning mechanism and the output voltage switching knob are not fitted, the output voltage of the power supply device is not supplied to the electric equipment because the power receiving connector and the output connector are not completely connected. By providing the positioning mechanism and the output voltage switching knob in this way, the power receiving connector and the output connector are prevented from being mistakenly connected, and the power supply voltage other than the desired one is not supplied to the electric device. It is possible to prevent damage to electric equipment.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part configuration of a power supply connector device according to an embodiment corresponding to the invention of claim 1. FIG.

FIG. 2 is a cross-sectional view showing an internal configuration of an output connector adopting an output voltage switching knob according to an embodiment corresponding to the invention of claim 2.

FIG. 3 is a sectional view showing an internal configuration of an output connector adopting an output voltage switching knob according to an embodiment corresponding to the invention of claim 3.

FIG. 4 is a cross-sectional view showing a main part in a state where an output connector and a power receiving connector adopting a joint confirmation mechanism according to an embodiment corresponding to claims 4 and 5 are joined.

FIG. 5 is a cross-sectional view showing a main part in a state in which an output connector and a power receiving connector adopting a joining confirmation mechanism according to an embodiment corresponding to the invention of claim 6 are joined.

FIG. 6 is a cross-sectional view showing a main part in a state in which an output connector and a power receiving connector adopting a joining confirmation mechanism according to an embodiment corresponding to the invention of claim 7 are joined.

FIG. 7 is a circuit diagram of a power supply device adopting a line according to an embodiment corresponding to the invention of claims 5 and 8.

FIG. 8 is a circuit diagram of a power supply device adopting a line according to an embodiment corresponding to claims 5 and 9 of the present invention.

FIG. 9 is a cross-sectional view showing a main part in a state where the output connector and the power receiving connector according to the embodiment corresponding to the invention of claim 10 are joined.

[Explanation of symbols]

1 ... Output connector, 2 ... Output voltage switching knob,
6, 7 ... Position information transmission line, 10 ... Power receiving connector, 11 ... Recessed portion (positioning mechanism), 20, 21, 2
2 ... Resistance, 23 ... Sliding contact, 24 ... Common contact, 25 ... Resistive film, 26, 27, 28, 29
・ ・ ・ Lead wire, 34, 35 ・ ・ ・ Joint confirmation terminal (joint confirmation mechanism), 36, 37 ・ ・ ・ Joint confirmation plug (joint confirmation mechanism), 40 ・ ・ ・ Clamper metal fitting (joint confirmation mechanism) Mechanism), 43, 44 ... screw, 56, 6
2 ... NPN transistor, 58 ... Equivalent switch (equivalent switch corresponding to ON / OFF of line),
71, 72 ... Power supply device, 82 ... Negative electrode side output line.

Claims (11)

[Claims] 1. A power supply connector device for connecting a power supply device that generates a power supply voltage and an electric device that receives the power supply voltage from the power supply device, the output voltage of the power supply device being connected to the power supply device side. An output connector having a movable output voltage switching knob for performing a mechanical position, and the output voltage switching knob that is connected to the electric device and receives a desired voltage to be supplied to the electric device from the output connector. And a power receiving connector having a positioning mechanism for performing positioning, wherein when the power receiving connector is joined to the output connector, the output voltage switching knob is positioned by the positioning mechanism, thereby the output voltage of the power supply device. Is configured to switch to a desired voltage for the electric device. 2. Along with the movement of the output voltage switching knob,
The power supply connector device according to claim 1, wherein a slide contact for switching a resistance related to setting of an output voltage of the power supply device is provided on the output voltage switching knob. 3. Along with the movement of the output voltage switching knob,
2. The power supply connector device according to claim 1, further comprising a variable resistor provided in association with the output voltage switching knob to change a resistance related to setting of an output voltage of the power supply device. 4. A joint confirmation mechanism used for confirming joint between the output connector and the power receiving connector after the output voltage switching knob and the positioning mechanism are fitted to each other. The power supply connector device according to claim 1, wherein the power supply connector device is provided over both of the connectors. 5. The at least two joining confirmation mechanisms are provided over both the output connector and the power receiving connector, and the two joining confirmation mechanisms are short-circuited on the power receiving connector side, and the power supply device is provided. A line for controlling the on / off of the output of the power supply device is connected between the two joining confirmation mechanisms on the output connector side to control the on / off of the output of the power supply device. The power supply connector device according to claim 4, which is characterized in that. 6. The joint confirmation mechanism is a clamper metal fitting for fixing the output connector and the power receiving connector on the power receiving connector side, and the output connector and the power receiving connector on the output connector side. The power supply connector device according to claim 4, wherein the power supply connector device is a connection confirmation terminal that comes into contact with the clamper fitting when fixed. 7. The joint confirmation mechanism is a clamper metal fitting for fixing the output connector and the power receiving connector on the power receiving connector side, and the output connector and the power receiving connector on the output connector side. The power supply connector device according to claim 4, wherein the power supply connector device is a connection confirmation terminal that comes into contact with the clamper metal fitting via a screw when is fixed. 8. The line is a junction confirmation connected between a control terminal of a transistor for controlling the output of the power supply device on / off and a negative output line of the power supply device through a lead wire. The power supply connector device according to claim 5, wherein the power supply connector device is an electrically conductive line passing through the mechanism. 9. The lead line is provided between a control terminal of a transistor connected between a positive side output line of a power supply voltage and a positive side output terminal and a negative side output line of the power supply voltage. 6. An electrically conductive line that passes through a joint confirmation mechanism connected via a wire.
The power supply connector device according to. 10. A top portion of the output voltage switching knob in the output connector is a protrusion having a substantially triangular shape,
The power supply connector device according to claim 1, wherein the positioning mechanism in the power receiving connector is a recess having a bottom having a substantially triangular recess. 11. When the electric device requires a plurality of different power supply voltages and the power supply device outputs a plurality of different voltages, the number of the output voltage switching knobs and the positioning mechanism corresponds to the number of the power supply voltages. The power supply connector device according to claim 1, wherein the power supply connector device is provided.