Abstract:
The utility model discloses a power source cabinet comprising a power source disposed within the cabinet body, an inverter portion connected to the power source, an air pump portion powered by the output power source of the inverter, positive and negative electrical clips connected to the power source, placed within the electrical clip box on both sides of the cabinet body, and respectively connected to the positive and negative of the power source, and a function panel disposed on the cabinet body. Thereby the battery will be protected from being easily damaged, have a prolonged lifespan, be convenient to use, be safe and reliable while charging, and motor vehicles will be started easily.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of Invention  
         [0002]     The utility model relates to a power source cabinet, and particularly to an onboard power source cabinet capable of supplying power to various instruments.  
         [0003]     2. Related Art  
         [0004]     In general, an onboard power source comprises an inverter power source and a DC power source. The DC power source is usually used to start the vehicle and to power the air pump, while the inverter power source is generally used to supply proper voltages to some power-consuming equipments, such as a computer, a television, electric tools, and a mobile phone charger. The ordinary DC power source is chargeable and dischargeable battery. Since the power sources are in a separated form, they are selected to be moved or connected as desired when being disposed and used. Thus, it is easy for the batteries to be damaged and inconvenient for using. And meanwhile, the batteries do not have any indication when being charged, and the positive and the negative of the batteries may be misconnected when used for starting vehicles, which will cause the potential risks.  
       SUMMARY OF THE INVENTION  
       [0005]     The object of the present invention is to provide a power supply cabinet to overcome the disadvantages of the technique described above; wherein said power supply cabinet can prevent batteries from being easily damaged and provide them with a prolonged lifespan and a convenient operation, and meanwhile the vehicles are readily started, and it is safe and reliable for charging the batteries. In addition, the low-voltage currents, after being inverted through such power supply cabinet, may be used for a computer, a television, electric tools, a mobile phone charger, and the like. Such power supply cabinet is also equipped with a light for illumination.  
         [0006]     Technical Solution  
         [0007]     The utility model is accomplished through the following technical solutions:  
         [0008]     The power supply cabinet comprises a power source disposed within the cabinet body, positive and negative electrical clips connected to the power source, placed within the electrical clip box on both sides of the cabinet body, and respectively connected to the positive and negative of the battery; and a function panel disposed on the cabinet body.  
         [0009]     The power supply cabinet further comprises an inverter portion connected to the power source, and an air pump portion powered by the output power source of the inverter.  
         [0010]     Wherein the inverter portion comprises an inverter mounted within the cabinet, a test button, a LED display screen, and an inverter switch disposed on the function panel. And the switch is provided with sockets on both sides. The inverter is located in the middle part of the cabinet body, while the corresponding inverter switch is disposed on the middle part of the function panel. The sockets are disposed on both sides of the switch, and the LED display screen, that is a three digit LED digital display, is disposed below the switch.  
         [0011]     Wherein the air pump portion comprises a pump body mounted within the cabinet body, and a gas meter, a fuse box and an air pump switch disposed on the function panel. The air pump is disposed at the most front end of the cabinet body, while the corresponding gas meter is disposed at the front end of the function panel. The fuse box and the air pump switch are disposed on both sides of the gas meter, and a fuse is disposed within the fuse box.  
         [0012]     An electrical clip switch is disposed on one end of the function panel, and one side of the electrical clip switch is provided with a charge jack and the LED display color light. And the color light is partially connected to the charging circuit, which is disposed within the cabinet body and connected to the power supply.  
         [0013]     A movable front door is disposed on the end face vertical to the function panel. The lower end of the movable front door is connected to the cabinet body by a hinge, and a snap fastener is disposed in the middle part of the upper end. The air pump is disposed within the cabinet body behind the movable front door.  
         [0014]     Wherein the charging circuit portion comprises a charging circuit and an electric quantity detecting circuit, and the charging circuit includes a charging limited current circuit, an overcharge protection and display circuit, 
        wherein the charging and limited current circuit is composed of J 1 , D 5 , K 1 , and R 14 , connected in series;     the overcharge protection and display circuit is consisted of D 8 , D 6 , ZD 1 , R 12 , Q 2 , R 11 , LED D 1 , R 13 , Q 1 , and R 8 . Specifically, D 8  is connected with K 1  in parallel. D 6 , ZD 1 , and R 12  are connected in series and then with K 1  in parallel. The base of Q 2  is connected to R 12 ; the emitter of Q 2  is connected to ground; and the collector of Q 2  is connected to D 8 . One end of R 11  and one end of R 13  are connected to K 1 . LED D 1  is connected with R 11  in series and with R 13  in parallel. The base of Q 1  is connected to one end of R 13 ; the emitter of Q 1  is connected to ground; and the collector of Q 1  is connected between R 8  and D 1 .     the electric quantity detecting circuit is consisted of U 1 A, U 1 B, U 1 C, R 1 , R 2 , R 3 , R 4 , R 8 , R 9 , R 10 , D 1 , D 2 , D 3 , D 7 , C 1 , C 2 , SW 1 , BT 1 , R 5 , R 6 , R 7 , and U 2 . Specifically, U 1 A, U 1 B, and U 1 C are connected in parallel. The first pin of U 1 A is connected to D 7 , while the other end of D 7  is connected to R 8 . The second pin of U 1 A is connected to the ninth pin of U 1 C. The third and fourth pins of U 1 A are respectively connected to two ends of R 1 . The fifth pin of U 1 B is connected to ground via C 1 ; the sixth pin of U 1 B is connected to one end of R 2 , and the seventh pin of U  1 B is connected to one end of R 9 , while the other end of R 9  is connected to D 2 , and the other end of D 2  is connected to ground. The eighth pin of U 1 C is connected to one end of R 10 , while R 10  is connected with D 3  in series and then connected to ground. The ninth pin of U 1 C is also connected to the third pin of U 2  and R 7 , while R 7  is connected with R 6  in series and then to ground. And the first pin of U 2  is connected between R 6  and R 7 , while the second pin of U 2  is connected to ground. The tenth pin of U 1 C is connected with R 4  and R 5 , and the other end of R 5  is connected to ground. Furthermore, SW 1  is connected to the positive of BT 1  and R 14 ; the negative of BT 1  is connected to ground; and C 2  is connected between the other end of SW 1  and the ground.        
 
         [0018]     The inverter in the inverter portion is located in the middle part of the cabinet body; while the corresponding inverter switch is disposed on the middle part of the function panel. The sockets are disposed on both sides of the switch, and the LED display screen, that is a three digit LED digital display, is disposed below the switch.  
         [0019]     The electrical clip switch is a knob with on/off shift, and a reset switch F 1  is disposed between the positive electrical clip and the battery.  
         [0020]     The function panel, where the electrical clip switch is located, is inclined at an angle of less than 90°.  
         [0021]     The left and right handles are disposed on both sides of the power supply cabinet body for moving and handholding. And the handles are covered with handle covers, protruding from the surface of the cabinet body and forming a space with the cabinet body for fingers to insert.  
         [0022]     A pair of cigarette lighter charge jacks is disposed above the charge jack on the function panel, above which a cover board hinged with the function panel are placed.  
         [0023]     The cover board is located on the function panel, where the electrical clips are placed.  
         [0024]     The cover board may also be movably connected to the function panel by a hinge.  
         [0025]     An upper cover, movably connected to the cabinet body at the joint between the slope and plane of the function panel by the hinge, is disposed on the panel portion of the function panel, and a light connected to the power source is disposed at the bottom of the upper cover.  
         [0026]     Beneficial Effects  
         [0027]     The beneficial effects of the utility model are as follows: 
        1. The cabinet body supports the battery to protect the battery from being damaged, thus prolonging lifespan of the battery;     2. Charge indicator are disposed and the power is digitally displayed, such that the electric quantity may be controlled at any moment; precautionary measures may be well taken; thus ensuring the battery is fully charged.     3. The electrical clips are clamped to the positive and negative of the battery within the vehicles, such that the vehicles are rapidly started.     4. The output of the electrical clips is provided with an overload protection switch, thus ensuring the vehicles to be started safely.     5. A high-pressure air pump is disposed in combination, which can be used to pump the tires of the car conveniently.       
 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0033]      FIG. 1  is a three dimensional view of a power supply cabinet (when the electrical clip is charged) of the utility model;  
         [0034]      FIG. 2  is a top view of the power supply cabinet of  FIG. 1 ;  
         [0035]      FIG. 3  is a front view of the power supply cabinet of  FIG. 1  (with the movable front door  17  opened);  
         [0036]      FIG. 4  is a cutaway view of the power supply cabinet of  FIG. 1  along line A-A;  
         [0037]      FIG. 5  is a charging circuit diagram of the power source. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0038]     The utility model will be further illustrated in conjunction with the accompanying figures below.  
         [0039]     As shown in  FIG. 1  to  FIG. 4 , the power supply cabinet of the utility model comprises a power source  2  disposed within the cabinet body  1 , an inverter portion  3  connected to the power source  2 , an air pump portion  4  powered by the output power source of the inverter, positive and negative electrical clips  5 ,  6  connected to the power source  2 , placed within the electrical clip box  10  on both sides of the cabinet body and respectively connected to the positive and negative of the power source, and a function panel  7  placed on the cabinet body  1 ; wherein, the inverter portion  3  includes an inverter  30  mounted within the cabinet, and a test button  32 , a LED display screen  34  and an inverter switch  36  with sockets  38  on both sides disposed on the function panel  7 . The inverter  30  is located in the middle part of the cabinet body. The corresponding inverter switch  36  is disposed on the middle part of the function panel. Sockets  38  are disposed on both sides of the switch  36 , and the LED display screen  34  that is a three digit LED digital display is disposed below the switch  36 . Pressed down the test button  32  before the inverter is powered, and the LED display screen  34  will show the voltage output by the battery; while such display screen shows the output power when the inverter is on. The air pump portion  4  includes a pump body  40  mounted within the cabinet, and a gas meter  42 , a fuse box  44  and an air pump switch  46  disposed on the function panel  7 . The air pump  40  of the air pump portion is disposed at the most front end of the cabinet body  1 . The corresponding gas meter  42  is disposed at the front end of the function panel  7 . The fuse box  44  and the air pump switch  46  are disposed on both sides of the gas meter  42 . A fuse is disposed within the fuse box for protecting overload. Furthermore, One end of the function panel  7  is inclined at an angle of less than 90° extending upward, on which an electrical clip switch  8  is disposed. The clip switch  8  is a knob having on/off shift. A reset switch F 1  is disposed between the positive electrical clip and the battery. A charge jack  9  used as an interface for charging and three LED display color lights D 1 , D 2  and D 3  are disposed on one side of the electrical clip switch  8 , in which the color lights are partially connected to the charging circuit  92  which is disposed within the cabinet body  1  and connected to the power supply  2 . Additionally, left and right handles  11 , 12  are disposed on both sides of the power supply cabinet body  1 , which are covered with handle covers, protruding from the surface of the cabinet body and forming a space  13  for fingers to insert. A pair of cigarette lighter charge jacks  14  is disposed above the charge jack on the inclined function panel, with a cover board  15  hinged with the function panel placed upon. The cover board  15  is movably connected to the function panel by a hinge  16 . A movable front door  17  is disposed on the end face vertical to the function panel, with its lower end connected to the cabinet body  1  by a hinge, and a snap fastener  18  disposed in the middle part of its upper end. An air pump  40  is disposed within the cabinet body behind the movable front door  17 . The movable front door  17  can be open while using so as to draw out gas nozzle of the air pump from the door. An upper cover  19 , which is movably connected to the cabinet body at the joint between the slope and plane of the function panel by a hinge, is disposed on the plane portion of the function panel. A light  20  connected to the power source is disposed at the bottom of the upper cover  19 .  
         [0040]     As shown in  FIG. 5 , the positive of the power source BT 1  is connected to the positive electrical clip, and the negative of the power source BT 1  is connected to the negative electrical clip. The switch K 2  and the reset switch F 1  are connected between the positive of the power source BT 1  and the positive electrical clip. If load short-circuit or overload occurs or the electrical clips are connected to improper positive and negative when the electrical clip outputs, the reset switch F 1  will jump rapidly, the red light lights up, and such switch can be reset by the operators after 5-8 seconds. The charging circuit portion includes a charging circuit and an electric quantity detecting circuit, wherein the charging circuit of the power source includes a charging limited current circuit, an overcharge protection and display circuit, wherein, the charging and limited current circuit is consisted of J 1 , D 5 , K 1  and R 14 , which are connected in series; the overcharge protection and display circuit is consisted of D 8 , D 6 , ZD 1 , R 12 , Q 2 , R 11 , LED D 1 , R 13 , Q 1  and R 8 . Specifically, D 8  is connected with K 1  in parallel. D 6 , ZD 1  and R 12  are connected in series and then with K 1  in parallel. The base of Q 2  is connected to R 12 , the emitter of Q 2  is connected to ground, and the collector of Q 2  is connected to D 8 . One end of R 11  and one end of R 13  are connected to K 1 . LED D 1  is connected with R 11  in series and with R 13  in parallel. The base of Q 1  is connected to one end of R 13 , the emitter of Q 1  is connected to ground, and the collector of Q 1  is connected between R 8  and D 1 . The electric quantity detecting circuit is consisted of U 1 A, U 1 B, U 1 C, R 1 , R 2 , R 3 , R 4 , R 8 , R 9 , R 10 , D 1 , D 2 , D 3 , D 7 , C 1 , C 2 , SW 1 , BT 1 , R 5 , R 6 , R 7  and U 2 . Specifically, U 1 A, U 1 B and U 1 C are connected in parallel. The first pin of U 1 A is connected to D 7  and the other end of D 7  is connected to R 8 . The second pin of U 1 A is connected to the ninth pin of U 1 C. The third and fourth pins of U 1 A are respectively connected to two ends of R 1 . The fifth pin of U 1 B is connected to ground via C 1 . The sixth pin of U 1 B is connected to one end of R 2 . The seventh pin of U 1 B is connected to one end of R 9 . The other end of R 9  is connected to D 2 , and the other end of D 2  is connected to ground. The eighth pin of U 1 C is connected to one end of R 10  which is connected with D 3  in series and then to ground. The ninth pin of U 1 C is also connected to the third pin of U 2  and R 7  that is connected with R 6  in series and then to ground. The first pin of U 2  is connected between R 6  and R 7 , and the second pin of U 2  is connected to ground. The tenth pin of U 1 C is connected to R 4  and R 5 , and the other end of R 5  is connected to ground. Furthermore, SW 1  is connected to the positive of BT 1  and R 14 . The negative of BT 1  is connected to ground. C 2  is connected between the other end of SW 1  and the ground. When charging, after the power source passes through the charge socket J 1 , its positive is output to a diode D 5  through pin  1  of J 1 , and then via normally closed contacts K 1 ˜ a  connected to the positive of the battery BT 1  after being current-limited by the resistor R 14 , and its negative is connected to the negative of BT 1  via pins  2  and  3  of J 1 , thus forming a charge loop. Meanwhile, pin  1  of the charge socket is connected to the negative of the power source via diode D 4 , resistor R 8 , two-color LED and D 1 -R to allow D 1 -R light up to indicate that charging is in process. When the battery is charged to a predetermined voltage, ZD 1  voltage-stabilizing diode breaks down, and triode Q 2  is conducted. When the relay K 1  picks up, K 1 ˜ a  drops out, and K 1 - b  picks up, the battery disconnects from the charge loop, and charge is completed. D 1 -G lights up after being powered, and triode Q 1  is conducted after being powered via the resistor R 13 . The potential of the first pin of D 1 -G is drawn down to have D 1 -R turned off to indicate that charging is completed. For the electric quantity detecting circuit: press down SW 1 , and the current is input to pin  4  of U 1 A after being filtered by C 2 , and then via R 2  reach the second pin of U 1 A, pin  6  of U 1 B and pin  9  of U 1 C (inverting input terminal), and at the same time the current flows to pin  3  of U 1 A, pin  5  of U 1 B, pin  10  of U 1 C (inphase input terminal) and pin  2  of U 2  via a voltage divider consisted of R 1 , R 3 , R 4  and R 5 ; R 2 , R 7 , R 6  and U 2  form a regular power source so as to provide a reference voltage for pin  2  of U 1 A, pin  6  of U 1 B, pin  9  of U 1 C (inverting input terminal). If the voltage of the third pin is higher than that of the second pin, the first pin outputs high potential to the negative of the battery via D 7 , D 8  and D 1 -R, so that D 1 -R lights up. If the voltage of the fifth pin is higher than that of the sixth pin, the seventh pin outputs high potential to the negative of the battery via R 9  and D 2 , so that D 2  lights up. If the voltage of the tenth pin is higher than that of the ninth pin, the eighth pin outputs high potential to the negative of the battery via R 10  and D 2 , so that D 3  lights up. Here, press down SW 1 , if D 1 , D 2  and D 3  light up simultaneously, indicating that the battery is full and can be normally used. If D 1  and D 2  light up simultaneously, indicating that the voltage of battery is lower than normal, and needs charging. If D 1 -R lights up individually, indicating that the battery cannot be used normally, and needs charging immediately.  
         [0041]     In view of the above, the power source cabinet of the utility model supports the battery by the cabinet body to protect the battery from being damaged, thus prolonging lifespan of the battery, and is provided with a charge indicator and digital power display for showing the electric quantity so as to allow people prepare measures, thus ensuring the battery is fully charged. The electrical clips can be connected to the negative and positive of the battery of the automobile to let the vehicles start rapidly. The output of the electrical clips is provided with an overload protection switch, thus ensuring that the motor vehicles can be safely started. Using together with a high pressure air pump, the present power source cabinet can provide convenience for users to pump a small vehicle.