CN203136033U - Power supply device - Google Patents
Power supply device Download PDFInfo
- Publication number
- CN203136033U CN203136033U CN 201320098922 CN201320098922U CN203136033U CN 203136033 U CN203136033 U CN 203136033U CN 201320098922 CN201320098922 CN 201320098922 CN 201320098922 U CN201320098922 U CN 201320098922U CN 203136033 U CN203136033 U CN 203136033U
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- China
- Prior art keywords
- contact
- main contact
- electronic switch
- supply installation
- electric supply
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Abstract
The utility model discloses a power supply device. The power supply device comprises a charging seat with a main contact, a power supply module for supplying power and a control circuit for controlling the power supply module and electrically connected with the main contact, wherein the main contact is adapted with a contact type plug connected with a load; the power supply module and the control circuit are arranged in the charging seat, the control circuit controls the electric connection between the power supply module and the main contact after the main contact is normally connected with the contact type plug, and controls the disconnection between the power supply module and the main contact before the main contact is disconnected with the contact type plug. When the load is not supplied with power by the charging seat, the main contact is not electrified, thereby effectively preventing the charging seat from being touched by a human body at the non-working state and the electric shock risk, and improving the use safety of the charging seat.
Description
Technical field
The utility model relates to power technique fields, particularly a kind of electric supply installation.
Background technology
Colour TV is from CRT(Cathode Ray Tube, cathode ray tube) the passed by brilliant road of a technological innovation of till now flat board.Present TV generally has two kinds of occupation modes: one, hang on the wall by hanger and use; Two, be installed on the base and use.Up-to-date technology has realized the wireless transmission of TV signal now, for example uses WIFI or other radio transmitting method, thereby makes the signal input of TV just break away from the bundle clothes of input link, but power supply still needs connecting line.The mobile use installed battery usually, thereby realized wireless supply power mode in television set for the convenience of the user.In order to realize the wireless charging of battery, in the prior art, a cradle is set usually, this cradle is provided with the contact contact, at television set the plug adaptive with this cradle is set simultaneously, contacts with plug by contact, thereby battery is charged.Because cradle is under obsolete situation, subsidiary voltage when human body touches contact, cause electric shock accidents easily, so fail safe is relatively poor on the contact.
The utility model content
Main purpose of the present utility model is to provide a kind of electric supply installation, is intended to improve the fail safe that cradle uses.
To achieve these goals, the utility model provides a kind of electric supply installation, this electric supply installation comprises cradle, the power module that is used for power supply that is provided with main contact and is used for the control circuit that the described power module of control is electrically connected with described main contact that wherein said main contact is adaptive with the contact plug that is connected with load; Described power module and control circuit all are built in the described cradle, described control circuit normally is connected the described power module of back control at described main contact and contact plug and is electrically connected with main contact, and disconnects and control described power module before the contact plug is connected and be connected with the main contact disconnection at described main contact.
Preferably, also be provided with first auxiliary contact on the described cradle, described electric supply installation also comprises the detection module for detection of described first auxiliary contact and described contact plug connection status; Described first auxiliary contact is connected with the low-voltage output of described power module, and when cradle and described contact plug plug together, and described first auxiliary contact contacts with the contact plug after with respect to main contact; Described detection module outputs control signals to control circuit according to the connection status of first auxiliary contact and described contact plug, controls the state that described power module is connected with main contact for this control circuit according to described control signal.
Preferably, also be provided with second auxiliary contact that is connected with described control circuit on the described cradle, and when described second auxiliary contact contacts with the contact plug, be connected with described detection module.
Preferably, described main contact comprises positive main contact and negative main contact, described control circuit comprises first electronic switch, second electronic switch, resistance and is used for the controller of described first electronic switch of control and the second electronic switch operating state, wherein positive main contact is connected with an end of first electronic switch by second electronic switch, and the other end of this first electronic switch is connected with the positive output end of power module; Negative main contact is connected with the negative output terminal of power module; Described resistance is parallel to the two ends of second electronic switch; Described controller is connected with second auxiliary contact.
Preferably, described detection module comprises a coding unit, and described control circuit also comprises a decoding unit adaptive with this coding unit, and this decoding unit is located between described controller and second auxiliary contact.
Preferably, described first electronic switch is relay.
Preferably, described second electronic switch is relay.
Preferably, described electric supply installation also comprises the battery that is used to load that power supply is provided.
Preferably, described electric supply installation comprises that also this charging circuit is connected between described battery and the contact plug for the charging circuit for described battery charge.
Preferably, described load is television set.
The utility model normally is connected at main contact and contact plug by control circuit control power module and then is connected with main contact, thereby makes on the main contact chargedly, and by the contact plug electric energy is transferred to load, powers; And disconnect and control power module before the contact plug is connected and be connected with the main contact disconnection at main contact, thereby make on the main contact not charged.Therefore under the situation that cradle is not powered to load, not charged on the main contact, thus prevented effectively because cradle is arrived the danger that produces electric shock by human body touch under the state of not working, improved the fail safe that cradle uses.In addition, the main contact that also can prevent the contact of contact plug of TV and cradle contacts in the process, because the unsteadiness of contact moment contact-making surface, and the rush of current that brings and burn out main contact.
Description of drawings
Fig. 1 is the structural representation of the utility model electric supply installation one embodiment.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
With reference to Fig. 1, Fig. 1 is the structural representation of the utility model electric supply installation one embodiment.The electric supply installation that present embodiment provides comprises cradle 10, the power module 20 that is used for power supply that is provided with main contact 11 and is used for the control circuit 30 that control power module 20 is electrically connected with main contact 11 that wherein main contact 11 is adaptive with the contact plug 50 that is connected with load 40; Power module 20 and control circuit 30 all are built in the cradle 10, control circuit 30 normally is connected back control power modules 20 at main contact 11 and contact plug 50 and is electrically connected with main contact 11, and main contact 11 disconnections with control power module 20 before contact plug 50 is connected and be connected with main contact 11 disconnections.
In the present embodiment, above-mentioned load 40 is television set, above-mentioned contact plug 50 is the contact plug of television set, this contact plug 50 is provided with the contact adaptive with main contact 11, when contact plug 50 and cradle 10 plug together, main contact 11 is connected with corresponding contact, thereby the voltage that power module 20 is powered for load 40 exports load to.
The utility model normally is connected with contact plug 50 at main contact 11 by control circuit 30 control power modules 20 and then is connected with main contact 11, thereby makes on the main contact 11 chargedly, and by contact plug 50 electric energy is transferred to load 40, powers; And disconnect and control power module 20 before contact plug 50 is connected and be connected with main contact 11 disconnections at main contact 11, thereby make on the main contact 11 not charged.Therefore under the situation that cradle 10 is not powered to load 40, not charged on the main contact 11, thus prevented effectively because cradle 10 is arrived the danger that produces electric shock by human body touch under the state of not working, improved the fail safe that cradle 10 uses.In addition, the main contact 11 that also can prevent the contact of contact plug 50 of TV and cradle 10 contacts in the process, because the unsteadiness of contact moment contact-making surface, and the rush of current that brings and burn out main contact 11.
Further, also be provided with first auxiliary contact 12 on the above-mentioned cradle 10, above-mentioned electric supply installation also comprises for detection of the detection module 60 of first auxiliary contact 12 with contact plug 50 connection status; First auxiliary contact 12 is connected with the low-voltage output of power module 20, and when cradle 10 and contact plug 50 plugged together, first auxiliary contact 12 contacted with contact plug 50 with respect to main contact 11 backs; Detection module 60 outputs control signals to control circuit 30 according to the connection status of first auxiliary contact 12 and contact plug 50, controls the state that power module 20 is connected with main contact 11 for this control circuit 30 according to control signal.
In the present embodiment, for example when cradle 10 during with contact plug 50 vertical plugging together, the length setting of first auxiliary contact 12 can be shorter than main contact 11, thereby make in the process that cradle 10 and contact plug 50 plug together, at first contacted with contact plug 50 by main contact 11, then under the effect of pressure, make main contact 11 and contact plug 50 butts, and the auxiliary contact 12 of winning is contacted with contact plug 50.After detection module 60 detects first auxiliary contact 12 and contact plug 50 contacts, then prove main contact 11 with contact plug 50 contact stabilizations, thereby send a control signal to control circuit 30, control circuit 30 will be connected with main contact 11 according to this control signal control power module 20, thereby to load 40, realize the power supply of load 40 by main contact 11 output supply voltages.When load 40 need not to power, cradle 10 is pulled away from contact plug 50, at this moment, at first first auxiliary contact 12 disengages with contact plug 50, detection module 60 will send one and control signal to control circuit 30, and control circuit 30 will be controlled power module 20 and be connected with main contact 11 disconnections.Thereby can effectively prevent in the process that cradle 10 and contact plug 50 pull away because of the contact instability, cause rush of current and burn out main contact 11.
Particularly, based on above-described embodiment, in the present embodiment, also be provided with second auxiliary contact 13 that is connected with described control circuit 30 on the above-mentioned cradle 10, and when second auxiliary contact 13 contacts with contact plug 50, be connected with detection module 60.
Above-mentioned main contact 11 comprises positive main contact 11a and negative main contact 11b, control circuit 30 comprises the first electronic switch K1, the second electronic switch K2, resistance R and is used for the controller 31 of the control first electronic switch K1 and the second electronic switch K2 operating state, wherein positive main contact 11a is connected with the end of the first electronic switch K1 by the second electronic switch K2, and the other end of this first electronic switch K1 is connected with the positive output end of power module 20; Negative main contact 11b is connected with the negative output terminal of power module 20; Resistance R is parallel to the two ends of the second electronic switch K2; Controller 31 is connected with second auxiliary contact 13.
In the present embodiment, above-mentioned detection module 60 is located in the contact plug 50, when first auxiliary contact 12 with after contact plug 50 contacts, the low-voltage output of power module 20 will be detection module 60 power supplies by first auxiliary contact 12, behind the voltage of detection module 60 acquisitions this moment by 12 transmission of first auxiliary contact, to output control signals to controller 31 by second auxiliary contact 13, by the controller 31 controls first electronic switch K1 closure, thereby the voltage of the power module that makes 20 positive outputs exports positive main contact 11a to by the first electronic switch K1 and resistance R, realizes the soft start of load 40.Pass through delay threshold then after the time, controller 31 will be controlled the second electronic switch K2 closure, with short circuit soft start resistance R, make the load operate as normal.When first auxiliary contact 12 disconnects with being connected of contact plug, second auxiliary contact 13 also will disconnect and being connected of detection module 60, thereby make the input non-output signal of controller 31, controller 31 will be controlled the first electronic switch K1 and disconnect, and then make main contact 11 under no-voltage situation, separate with contact plug 50, effectively prolonged the useful life of main contact 11.
Particularly, in the present embodiment, above-mentioned detection module 60 comprises a coding unit 61, and control circuit 30 also comprises a decoding unit 32 adaptive with this coding unit 61, and this decoding unit 32 is located between controller 31 and second auxiliary contact 13.
In the present embodiment, when first auxiliary contact 12 with after contact plug 50 contacts, coding unit 61 will send the specific coding of appointing in advance, and transfer to decoding unit 32 by second auxiliary contact 13, these decoding unit 32 decoding back output control commands are to controller 31, and controller 31 will be controlled the on off state of the first electronic switch K1 and the second electronic switch K2 according to this control command.When first auxiliary contact 12 disconnects with being connected of contact plug, decoding unit 32 can't receive coded message, be decoding unit 32 no input signals, to export control command to controller 31 this moment, and controller 31 will be controlled the on off state of the first electronic switch K1 and the second electronic switch K2 according to this control command.Should be noted that above-mentioned specific coding is above-mentioned control signal.
Should be noted that the above-mentioned first electronic switch K1 and the second electronic switch K2 can arrange according to actual needs.In the present embodiment, the first electronic switch K1 is preferably relay, and the second electronic switch K2 is preferably relay.
Further, above-mentioned electric supply installation also comprises the battery 70 that is used to load that power supply is provided and the charging circuit 80 that is used for supplying described battery charge, and this charging circuit 80 is connected between battery 70 and the contact plug 50.
In the present embodiment, after main contact 11 and contact plug 50 normally is connected, the voltage of power module 20 by main contact 11 and contact plug 50 after, again through the adaptive charging voltage of charging circuit 80 outputs and battery 70, thus the charging of realization battery 70.
Should illustrate that above-mentioned load 40 can be any power consumption equipment, load 40 is television set in the present embodiment.
It below only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (10)
1. electric supply installation, it is characterized in that, comprise cradle, the power module that is used for power supply that is provided with main contact and be used for the control circuit that the described power module of control is electrically connected with described main contact, wherein said main contact is adaptive with the contact plug that is connected with load;
Described power module and control circuit all are built in the described cradle, described control circuit normally is connected the described power module of back control at described main contact and described contact plug and is electrically connected with main contact, and disconnects and control described power module before described contact plug is connected and be connected with described main contact disconnection at described main contact.
2. electric supply installation as claimed in claim 1 is characterized in that, also is provided with first auxiliary contact on the described cradle, and described electric supply installation also comprises the detection module for detection of described first auxiliary contact and described contact plug connection status; Described first auxiliary contact is connected with the low-voltage output of described power module, and when cradle and described contact plug plug together, and described first auxiliary contact contacts with the contact plug after with respect to main contact; Described detection module outputs control signals to control circuit according to the connection status of first auxiliary contact and described contact plug, controls the state that described power module is connected with main contact for this control circuit according to described control signal.
3. electric supply installation as claimed in claim 2 is characterized in that, also is provided with second auxiliary contact that is connected with described control circuit on the described cradle, and is connected with described detection module when described second auxiliary contact contacts with the contact plug.
4. electric supply installation as claimed in claim 3, it is characterized in that, described main contact comprises positive main contact and negative main contact, described control circuit comprises first electronic switch, second electronic switch, resistance and is used for the controller of described first electronic switch of control and the second electronic switch operating state, wherein positive main contact is connected with an end of first electronic switch by second electronic switch, and the other end of this first electronic switch is connected with the positive output end of power module; Negative main contact is connected with the negative output terminal of power module; Described resistance is parallel to the two ends of second electronic switch; Described controller is connected with second auxiliary contact.
5. electric supply installation as claimed in claim 4 is characterized in that, described detection module comprises a coding unit, and described control circuit also comprises a decoding unit adaptive with this coding unit, and this decoding unit is located between described controller and second auxiliary contact.
6. electric supply installation as claimed in claim 4 is characterized in that, described first electronic switch is relay.
7. electric supply installation as claimed in claim 4 is characterized in that, described second electronic switch is relay.
8. electric supply installation as claimed in claim 1 is characterized in that, described electric supply installation also comprises the battery that is used to load that power supply is provided.
9. electric supply installation as claimed in claim 8 is characterized in that, described electric supply installation comprises that also this charging circuit is connected between described battery and the contact plug for the charging circuit for described battery charge.
10. as electric supply installation as described in each in the claim 1 to 9, it is characterized in that described load is television set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098922 CN203136033U (en) | 2013-03-04 | 2013-03-04 | Power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098922 CN203136033U (en) | 2013-03-04 | 2013-03-04 | Power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203136033U true CN203136033U (en) | 2013-08-14 |
Family
ID=48943965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320098922 Expired - Fee Related CN203136033U (en) | 2013-03-04 | 2013-03-04 | Power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203136033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117954889A (en) * | 2024-03-26 | 2024-04-30 | 苏州元脑智能科技有限公司 | Power supply device and computer system |
-
2013
- 2013-03-04 CN CN 201320098922 patent/CN203136033U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117954889A (en) * | 2024-03-26 | 2024-04-30 | 苏州元脑智能科技有限公司 | Power supply device and computer system |
| CN117954889B (en) * | 2024-03-26 | 2024-06-18 | 苏州元脑智能科技有限公司 | Power supply device and computer system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20210304 |