Portable power box

Abstract

The utility model discloses a portable power box which comprises a box body, a pull rod mechanism, two damping roller mechanisms, a rechargeable battery, a battery fixing mechanism, a heat dissipation mechanism, a control circuit board and a charging cable. According to the portable power box, the two damping roller mechanisms are used for carrying out damping roller supporting on the box body, a heavy large rechargeable battery can be loaded, portable transportation of the box body is achieved under the pull rod type dragging effect of the pull rod mechanism, and the outdoor large electric quantity use requirement is met; the stable installation of the rechargeable battery can be realized by utilizing the battery fixing mechanism; the rechargeable battery and the control circuit board can be cooled through the heat dissipation mechanism, so that reliable and stable charging and discharging of the power box are guaranteed.

Description

Technical Field

[0001] This utility model relates to a power supply box, and more particularly to a portable power supply box. Background Technology

[0002] With the rise of outdoor living, more and more people enjoy short-term camping trips. During these trips, they typically carry a power supply. Existing power supplies are often small in size but have limited storage capacity, while larger ones are bulky and difficult to carry by hand. Therefore, it is necessary to design a portable power box that is easy to carry and can meet the high-capacity needs of outdoor use. Utility Model Content

[0003] The purpose of this utility model is to provide a portable power supply box that is easy to carry and can meet the needs of outdoor high-power use.

[0004] Technical Solution: The portable power supply box of this utility model includes a box body, a pull rod mechanism, two shock-absorbing roller mechanisms, a rechargeable battery, a battery fixing mechanism, a heat dissipation mechanism, a control circuit board, and a charging cable; an inclined slope is provided on the upper part of the front side of the box body, and a power socket, a display screen, and a power switch are provided on the inclined slope; two shock-absorbing roller mechanisms are installed at the lower rear corners of the left and right sides of the box body for shock-absorbing roller support; a support pad is provided on the front bottom of the box body; the pull rod mechanism is installed on the upper rear side of the box body for pulling and dragging the box body; the rechargeable battery is installed on the lower inner side of the box body through the battery fixing mechanism, and the control circuit board is installed on the upper inner side of the box body; the heat dissipation mechanism is installed on... Inside the enclosure, heat dissipation and cooling are provided for the rechargeable battery and control circuit board. The control circuit board houses a controller, a charging / discharging circuit, and a voltage acquisition circuit. The controller is electrically connected to the voltage acquisition circuit, the heat dissipation mechanism, and the display screen. Both the charging / discharging circuit and the voltage acquisition circuit are electrically connected to the rechargeable battery. The rechargeable battery supplies power to the controller, power socket, heat dissipation mechanism, and display screen through the charging / discharging circuit. The controller acquires the voltage of the rechargeable battery through the voltage acquisition circuit. A power switch is connected in series on the electrical connection line between the charging / discharging circuit and the rechargeable battery. One end of the charging cable extends into the enclosure and is electrically connected to the charging / discharging circuit; the other end has a power plug for connecting to AC power to charge the rechargeable battery.

[0005] Furthermore, the pull rod mechanism includes a U-shaped rod, two locking bolts, two fixing rods, and two hand-tightening nuts. The two fixing rods are vertically fixed to the rear side of the housing by mounting buckles. A locking disc is provided on the upper end of the two fixing rods and on both ends of the U-shaped rod, and positioning teeth are spaced apart on the edge of the locking disc. The locking discs at the upper ends of the two fixing rods correspond to the locking discs at both ends of the U-shaped rod. The locking bolts and hand-tightening nuts pull and clamp the corresponding two locking discs, and the positioning teeth on the two locking discs mesh with each other.

[0006] Furthermore, the shock-absorbing roller mechanism includes a support roller, a shock-absorbing spring, a shock-absorbing support tube, and a shock-absorbing support column. The shock-absorbing support tube is vertically fixed inside the housing, and movable slotted holes are correspondingly provided on the housing and the shock-absorbing support tube. The shock-absorbing support column is vertically slidably installed inside the shock-absorbing support tube. The support roller passes through the movable slotted hole via a roller support shaft and is vertically fixed to the lower side of the shock-absorbing support column. A spring mounting hole is provided at the upper end of the shock-absorbing support column. The lower end of the shock-absorbing spring is installed in the spring mounting hole, and the upper end is elastically supported on the upper closed end of the shock-absorbing support tube. A sealing ring that fits tightly against the inner wall of the shock-absorbing support tube is provided on the upper outer wall of the shock-absorbing support column. A small vent hole connected to the spring mounting hole is provided at the lower part of the shock-absorbing support column near the movable slotted hole.

[0007] Furthermore, the battery fixing mechanism includes a strip-shaped fixing seat and an L-shaped pad; the strip-shaped fixing seat is horizontally fixed to the lower part of the inner side of the box, and a battery mounting groove is provided on the upper side of the strip-shaped fixing seat, and the L-shaped pad is provided on the bottom side of the battery mounting groove; the rechargeable battery is installed in the battery mounting groove, and its bottom edge is supported on the L-shaped pad; a pressure strip for pressing the rechargeable battery is detachably installed on the upper side of the strip-shaped fixing seat.

[0008] Furthermore, the heat dissipation mechanism includes a cooling fan, an air shroud, an upper air outlet duct, and a lower air outlet duct. A partition plate is horizontally arranged inside the housing, with the control circuit board and rechargeable battery located on the upper and lower sides of the partition plate, respectively. The upper air outlet duct is installed above the partition plate and to the right of the control circuit board, used to blow cooling airflow onto the control circuit board. A heat dissipation hole is provided at the bottom of the battery mounting slot, and the lower air outlet duct is installed at the bottom of the housing and below the strip-shaped mounting base, used to blow cooling airflow onto the heat dissipation hole. Various air outlet strips are provided on the left side of the housing, and an air inlet window is provided on the right side. The air inlet side of the cooling fan is installed on the air inlet window, and the air shroud is installed on the air outlet side of the cooling fan. Both the upper and lower air outlet ducts are connected to the air shroud via air supply ducts. A fan drive circuit electrically connected to the controller is provided on the control circuit board. The fan drive circuit is electrically connected to the cooling fan, and the controller drives and controls the cooling fan through the fan drive circuit.

[0009] Compared with the prior art, the advantages of this utility model are as follows: the use of two shock-absorbing roller mechanisms to provide shock-absorbing roller support for the box body enables the loading of heavy large rechargeable batteries, and the pull rod mechanism enables the convenient transportation of the box body under the pull rod dragging action, while meeting the needs of outdoor high-capacity use; the battery fixing mechanism enables the stable installation of rechargeable batteries; and the heat dissipation mechanism enables the rechargeable batteries and control circuit board to dissipate heat and cool down, thereby ensuring that the power supply box can reliably and stably charge and discharge. Attached Figure Description

[0010] Figure 1 This is a front view structural diagram of the present invention;

[0011] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0012] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0013] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0014] Figure 5 This is a schematic diagram of the circuit structure of this utility model. Detailed Implementation

[0015] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings, but the protection scope of this utility model is not limited to the described embodiments.

[0016] like Figure 1-5As shown, the portable power supply box disclosed in this utility model includes: a box body 1, a pull rod mechanism, two shock-absorbing roller mechanisms, a rechargeable battery 30, a battery fixing mechanism, a heat dissipation mechanism, a control circuit board 40, and a charging cable 46; an inclined slope 2 is provided on the upper part of the front side of the box body 1, and a power socket 5, a display screen 4, and a power switch 3 are provided on the inclined slope 2; two shock-absorbing roller mechanisms are installed at the lower rear corners of the left and right sides of the box body 1 for shock-absorbing roller support of the box body 1; a support pad 7 is provided on the front bottom of the box body 1; the pull rod mechanism is installed on the upper part of the rear side of the box body 1 for pulling the box body 1; the rechargeable battery 30 is installed on the lower inner side of the box body 1 through the battery fixing mechanism, and the control circuit board 40 is installed on the upper inner side of the box body 1; the heat dissipation mechanism is installed on the upper inner side of the box body 1. Inside the housing 1, heat dissipation and cooling are provided for the rechargeable battery 30 and the control circuit board 40. The control circuit board 40 is equipped with a controller, a charging / discharging circuit, and a voltage acquisition circuit. The controller is electrically connected to the voltage acquisition circuit, the heat dissipation mechanism, and the display screen 4. Both the charging / discharging circuit and the voltage acquisition circuit are electrically connected to the rechargeable battery 30. The rechargeable battery 30 supplies power to the controller, the power socket 5, the heat dissipation mechanism, and the display screen 4 through the charging / discharging circuit. The controller acquires the voltage of the rechargeable battery 30 through the voltage acquisition circuit. The power switch 3 is connected in series on the electrical connection line between the charging / discharging circuit and the rechargeable battery 30. One end of the charging cable 46 extends into the housing 1 and is electrically connected to the charging / discharging circuit. The other end is equipped with a power plug for connecting to the mains power to charge the rechargeable battery 30.

[0017] Two shock-absorbing roller mechanisms are used to support the housing 1, enabling it to carry heavy large rechargeable batteries 30. The pull rod mechanism allows for easy transport of the housing 1 and meets the needs of high-capacity outdoor use. The battery fixing mechanism ensures the stable installation of the rechargeable batteries 30. The heat dissipation mechanism cools the rechargeable batteries 30 and the control circuit board 40, thus ensuring reliable and stable charging and discharging of the power supply box.

[0018] Furthermore, the pull rod mechanism includes a U-shaped rod 48, two locking bolts 50, two fixing rods 9, and two hand-tightening nuts 51. The two fixing rods 9 are vertically fixed to the rear side of the housing 1 by mounting clips 10. A locking disc 47 is provided at the upper end of the two fixing rods 9 and at both ends of the U-shaped rod 48, and positioning teeth 49 are spaced apart on the edge of the locking disc 47. The locking discs 47 at the upper ends of the two fixing rods 9 correspond to the locking discs 47 at both ends of the U-shaped rod 48. The locking bolts 50 and hand-tightening nuts 51 pull and clamp the corresponding two locking discs 47, and the positioning teeth 49 on the two locking discs 47 mesh with each other. By using the locking bolts 50 and hand-tightening nuts 51 to pull and clamp the corresponding two locking discs 47, the corresponding positioning teeth 49 are engaged, realizing the relative angle adjustment between the U-shaped rod 48 and the two fixing rods 9, meeting the user's needs for different usage angles.

[0019] Furthermore, the shock-absorbing roller mechanism includes a support roller 27, a shock-absorbing spring 22, a shock-absorbing support tube 19, and a shock-absorbing support column 20; the shock-absorbing support tube 19 is vertically fixed inside the housing 1, and movable slotted holes 25 are correspondingly provided on the housing 1 and the shock-absorbing support tube 19; the shock-absorbing support column 20 is vertically slidably installed inside the shock-absorbing support tube 19, and the support roller 27 is vertically fixed to the shock-absorbing support column 20 after passing through the movable slotted holes 25 via the roller support shaft 26. On the lower side, a spring mounting hole 21 is provided at the upper end of the shock-absorbing support column 20. The lower end of the shock-absorbing spring 22 is installed in the spring mounting hole 21, and the upper end is elastically supported and fixed to the upper closed end of the shock-absorbing support tube 19. A sealing ring 24 is provided on the upper outer wall of the shock-absorbing support column 20, which is close to the inner wall of the shock-absorbing support tube 19. A vent hole 23 connected to the spring mounting hole 21 is provided at the lower part of the shock-absorbing support column 20 and near the movable strip hole 25. The shock-absorbing spring 22 can realize the elastic support of the shock-absorbing support column 20, reducing the rigid impact of the support roller 27 on the box 1 during the movement. The cooperation of the sealing ring 24 and the vent hole 23 can play a buffering and damping role when the shock-absorbing support column 20 moves up and down, so that the shock-absorbing support column 20 can quickly reduce the vibration.

[0020] Furthermore, the battery fixing mechanism includes a strip-shaped fixing seat 28 and an L-shaped pad 32. The strip-shaped fixing seat 28 is horizontally fixed to the lower inner side of the housing 1. A battery mounting groove 29 is provided on the upper side of the strip-shaped fixing seat 28, and the L-shaped pad 32 is provided on the bottom side of the battery mounting groove 29. The rechargeable battery 30 is installed in the battery mounting groove 29, and its bottom edge is supported on the L-shaped pad 32. A pressure strip 35 for pressing the rechargeable battery 30 is detachably installed on the upper side of the strip-shaped fixing seat 28. The L-shaped pad 32 can support the bottom of the rechargeable battery 30, leaving an air gap at the bottom to facilitate heat dissipation. The pressure strip 35 can press the rechargeable battery 30, facilitating later disassembly and maintenance.

[0021] Furthermore, temperature sensors 39 are installed on both the pressure strip 35 and the control circuit board 40. The controller is electrically connected to the temperature sensors 39 to collect the temperature of the control circuit board 40 and the temperature of the rechargeable battery 30, respectively, so as to drive the cooling fan 14 when the temperature exceeds the threshold. By using the temperature sensor 39 to detect the temperature at the corresponding location, and cooperating with the cooling fan 14, the cooling is only activated when the temperature inside the housing 1 exceeds the set threshold.

[0022] Furthermore, the heat dissipation mechanism includes a cooling fan 14, an air shroud 36, an upper air outlet slot 38, and a lower air outlet slot 33. A partition plate 18 is horizontally arranged inside the housing 1, with the control circuit board 40 and the rechargeable battery 30 located on the upper and lower sides of the partition plate 18, respectively. The upper air outlet slot 38 is installed above the partition plate 18 and to the right of the control circuit board 40, used to blow cooling airflow onto the control circuit board 40. A heat dissipation hole 31 is provided at the bottom of the battery mounting slot 29, and the lower air outlet slot 33 is installed at the bottom of the housing 1 and below the strip-shaped mounting base 28, used to dissipate heat... Hot holes 31 blow out cooling airflow; various air outlet strips 16 are provided on the left side of the housing 1, and an air inlet window is provided on the right side of the housing 1. The air inlet side of the cooling fan 14 is installed on the air inlet window, and the air collection hood 36 is installed on the air outlet side of the cooling fan 14. The upper air outlet slot 38 and the lower air outlet slot 33 are both connected to the air collection hood 36 through air supply pipes 37; a fan drive circuit electrically connected to the controller is provided on the control circuit board 40. The fan drive circuit is electrically connected to the cooling fan 14, and the controller drives and controls the cooling fan 14 through the fan drive circuit. By utilizing the combination of the partition plate 18, the air collection hood 36, the two air supply pipes 37, the upper air outlet slot 38, and the lower air outlet slot 33, synchronous air supply from the upper and lower sides can be achieved, ensuring the reliability of heat dissipation and reducing internal turbulence.

[0023] Furthermore, air distribution plates 34 are provided at the left air outlet of the upper air outlet 38 and the upper air outlet of the lower air outlet 33 to ensure that the heat dissipation airflow is blown evenly; a protective baffle 17 is provided at the air outlet strip hole 16, and a protective net 15 is provided at the air inlet window.

[0024] Furthermore, a U-shaped enclosure 41 with an upward opening is provided on the rear side of the housing 1. A slot is provided on the inner side of the U-shaped enclosure 41, and a cover plate 42 is inserted into the slot. A hand-tightening positioning bolt 43 is screwed into the end of the cover plate 42 through a thread, thereby pressing it onto the housing 1 to position the cover plate 42. Two winding posts 44 are provided on the rear side of the housing 1, inside the U-shaped enclosure 41, and anti-detachment limiting posts 45 are provided at the ends of the winding posts 44. The charging cable 46 is wound around the two winding posts 44. The cooperation of the two winding posts 44 and the anti-detachment limiting posts 45 facilitates the winding and storage of the charging cable 46. The cooperation of the U-shaped enclosure 41 and the cover plate 42 protects the stored charging cable 46 and prevents it from falling out during movement.

[0025] Furthermore, a reinforcing strip 6 is provided around both the left and right sides of the box body 1, and two lifting strips 11 are provided on the two reinforcing strips 6 at the top of the box body 1. A handle 12 is provided between the upper ends of the two lifting strips 11, and a handle sleeve 13 is fitted on the handle 12, so as to facilitate two people to lift the box body 1. A reinforcing connecting strip 8 is provided at the bottom of the box body 1 to connect the left and right reinforcing strips 6. Through the cooperation of the reinforcing connecting strip 8 and the two reinforcing strips 6, the structural strength of the box body 1 can be effectively enhanced, ensuring good stability and safety when two people lift it by using the handle 12.

[0026] In the portable power supply box disclosed in this utility model, the controller uses an existing single-chip microcomputer controller for simple control; the voltage acquisition circuit can use an existing voltage divider acquisition circuit, and the signal is acquired by the acquisition terminal of the controller; the temperature sensor 39 uses an existing digital temperature sensor; the charging and discharging circuit uses an existing charging and discharging circuit to realize the charging and discharging control of the rechargeable battery 30; when the controller drives the cooling fan 14 through the fan drive circuit, it uses an existing simple motor control program, which is not the innovation of this utility model.

[0027] In use, the portable power supply box disclosed in this utility model first connects to the mains power supply via charging cable 46 to charge the rechargeable battery 30. The controller collects the voltage of the rechargeable battery 30 through the voltage acquisition circuit and displays the voltage value on the display screen 4. After the rechargeable battery 30 is charged to the set voltage value, it can be used outdoors. The user can adjust the angle of the U-shaped rod 48 according to their needs and lock the U-shaped rod 48 by tightening the two hand-tightening nuts 51. In use, the user opens the waterproof cover of the power socket 5 and plugs the load plug into the power socket 5 to supply power to the load. During charging and load power supply, the temperature sensor 39 detects the temperature at the corresponding location. When the temperature inside the box 1 exceeds the set threshold, the controller drives the cooling fan 14 through the fan drive circuit to dissipate heat from the rechargeable battery 30 and the control circuit board 40 inside the box 1, ensuring reliable and stable operation of the power supply box.

[0028] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A portable power supply box, characterized in that: The enclosure includes a housing (1), a pull rod mechanism, two shock-absorbing roller mechanisms, a rechargeable battery (30), a battery fixing mechanism, a heat dissipation mechanism, a control circuit board (40), and a charging cable (46). An inclined slope (2) is provided on the upper front side of the housing (1), and a power socket (5), a display screen (4), and a power switch (3) are provided on the inclined slope (2). Two shock-absorbing roller mechanisms are installed at the lower rear corners of the left and right sides of the housing (1) for shock-absorbing roller support. A support pad (7) is provided on the front bottom of the housing (1). The pull rod mechanism is installed on the upper rear side of the housing (1) for pulling the housing (1). The rechargeable battery (30) is installed on the lower inner side of the housing (1) via the battery fixing mechanism, and the control circuit board (40) is installed on the upper inner side of the housing (1). The heat dissipation mechanism is installed on the upper inner side of the housing (1). Inside, a heat dissipation circuit is used to cool the rechargeable battery (30) and the control circuit board (40). The control circuit board (40) is equipped with a controller, a charging and discharging circuit and a voltage acquisition circuit. The controller is electrically connected to the voltage acquisition circuit, the heat dissipation mechanism and the display screen (4). The charging and discharging circuit and the voltage acquisition circuit are both electrically connected to the rechargeable battery (30). The rechargeable battery (30) supplies power to the controller, the power socket (5), the heat dissipation mechanism and the display screen (4) through the charging and discharging circuit. The controller acquires the voltage of the rechargeable battery (30) through the voltage acquisition circuit. The power switch (3) is connected in series on the electrical connection line between the charging and discharging circuit and the rechargeable battery (30). One end of the charging cable (46) extends into the box (1) and is electrically connected to the charging and discharging circuit. The other end is equipped with a power plug for connecting to the mains power to charge the rechargeable battery (30).

2. The portable power supply box according to claim 1, characterized in that: The lever mechanism includes a U-shaped rod (48), two locking bolts (50), two fixing rods (9), and two hand-tightening nuts (51). The two fixing rods (9) are vertically fixed on the rear side of the housing (1) by means of mounting buckles (10). A locking disc (47) is provided on the upper end of the two fixing rods (9) and on both ends of the U-shaped rod (48). Each positioning tooth (49) is spaced apart on the edge of the locking disc (47). The locking discs (47) at the upper end of the two fixing rods (9) correspond to the locking discs (47) at both ends of the U-shaped rod (48). The locking bolts (50) and the hand-tightening nuts (51) pull and clamp the corresponding two locking discs (47), and the positioning teeth (49) on the two locking discs (47) mesh with each other.

3. The portable power supply box according to claim 1, characterized in that: The shock-absorbing roller mechanism includes a support roller (27), a shock-absorbing spring (22), a shock-absorbing support tube (19), and a shock-absorbing support column (20). The shock-absorbing support tube (19) is vertically fixed inside the housing (1), and movable slotted holes (25) are correspondingly provided on the housing (1) and the shock-absorbing support tube (19). The shock-absorbing support column (20) is vertically slidably installed inside the shock-absorbing support tube (19). The support roller (27) passes through the movable slotted hole (25) via the roller support shaft (26) and is vertically fixed to the shock-absorbing roller. On the lower side of the support column (20); a spring mounting hole is provided at the upper end of the shock-absorbing support column (20), the lower end of the shock-absorbing spring (22) is installed in the spring mounting hole, and the upper end is elastically supported on the upper closed end of the shock-absorbing support tube (19); a sealing ring (24) that is close to the inner wall of the shock-absorbing support tube (19) is provided on the upper outer wall of the shock-absorbing support column (20), and a venting hole (23) that is connected to the spring mounting hole is provided at the lower part of the shock-absorbing support column (20) and near the movable strip hole (25).

4. The portable power supply box according to claim 1, characterized in that: The battery fixing mechanism includes a strip-shaped fixing seat (28) and an L-shaped pad (32); the strip-shaped fixing seat (28) is horizontally fixed to the lower part of the inner side of the box (1), and a battery mounting groove (29) is provided on the upper side of the strip-shaped fixing seat (28), and the L-shaped pad (32) is provided on the bottom side of the battery mounting groove (29); the rechargeable battery (30) is installed in the battery mounting groove (29), and the bottom edge is supported on the L-shaped pad (32); a pressure strip (35) for pressing the rechargeable battery (30) is detachably installed on the upper side of the strip-shaped fixing seat (28).

5. The portable power supply box according to claim 4, characterized in that: The heat dissipation mechanism includes a heat dissipation fan (14), an air shroud (36), an upper air outlet slot (38), and a lower air outlet slot (33). A partition plate (18) is horizontally arranged inside the housing (1), and the control circuit board (40) and the rechargeable battery (30) are located on the upper and lower sides of the partition plate (18), respectively. The upper air outlet slot (38) is installed above the partition plate (18) and located to the right of the control circuit board (40), and is used to blow heat dissipation airflow to the control circuit board (40). A heat dissipation hole (31) is provided at the bottom of the battery mounting slot (29), and the lower air outlet slot (33) is installed at the bottom of the housing (1) and located below the strip-shaped fixing seat (28), and is used to blow heat dissipation airflow to the battery mounting slot (29). The heat dissipation holes (31) blow out the heat dissipation airflow; each air outlet strip hole (16) is provided on the left side of the box (1), and an air inlet window is provided on the right side of the box (1). The air inlet side of the heat dissipation fan (14) is installed on the air inlet window, and the air collection hood (36) is installed on the air outlet side of the heat dissipation fan (14). The upper air outlet slot (38) and the lower air outlet slot (33) are connected to the air collection hood (36) through the air supply pipe (37); a fan drive circuit that is electrically connected to the controller is provided on the control circuit board (40). The fan drive circuit is electrically connected to the heat dissipation fan (14), and the controller drives and controls the heat dissipation fan (14) through the fan drive circuit.

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