DCDC parallel connection device with uniform PWM current regulation

Abstract

The utility model relates to the technical field of DCDC parallel connection, in particular to a DCDC parallel connection device with uniform PWM (Pulse Width Modulation) current regulation, which comprises a DCDC device body. The DCDC device comprises a DCDC device body and further comprises a mounting frame, a first driving motor, a screw, a moving seat, a first connecting rod and a clamping assembly, the mounting frame is arranged at the front position of the right side surface of the DCDC device body, the first driving motor is mounted on the rear side surface of the mounting frame, and the output end of the first driving motor penetrates through the rear side wall of the mounting frame and is connected with one end of the screw; according to the utility model, the clamping assembly is arranged to clamp a connector cable, an anti-off effect can be achieved during normal operation, when dangerous situations such as a fire source occur, the first driving motor is started, the output end of the first driving motor can drive the screw rod to rotate, and the screw rod can drive the moving seat in threaded fit with the screw rod to move forwards during rotation, so that the cable can be prevented from falling off. Therefore, the first connecting rod drives the clamping assembly to move forwards, the connector cable is pulled out, and more serious damage to the DCDC device body is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to DCDC parallel technology field especially PWM current -adjusting even DCDC parallel device. BACKGROUND

[0002] DCDC parallel refers to the parallel of multiple same DCDC power modules to reach the required output power, when the existing DCDC power module power cannot satisfy the actual required power, the total output power can be increased by parallel of multiple same modules, when parallel is used, the module characteristics used in parallel are required to be very similar, otherwise the load current imbalance can be caused, the system stability and reliability are affected.

[0003] The existing PWM current -adjusting even DCDC parallel device does not have the automatic wire pulling function when using, when the fire and other dangerous conditions occur, the cable cannot be automatically pulled out from the device, the device is easily damaged more seriously, and the maintenance cost is increased.

[0004] Therefore, aiming at the problem that the existing PWM current -adjusting even DCDC parallel device does not have the automatic wire pulling function when using, when the fire and other dangerous conditions occur, the cable cannot be pulled out from the device, the device is easily damaged more seriously, the PWM current -adjusting even DCDC parallel device can be designed, the joint cable can be clamped through the setting of the clamping assembly, the anti -unthreading effect can be played when normal operation, when the fire and other dangerous conditions occur, the first drive motor is started, the output end can drive the screw rod to rotate, the moving seat that is screwed with the screw rod can be moved forward when rotating, so that the first connecting rod drives the clamping assembly to move forward, so that the joint cable is pulled out, and more serious damage to the DCDC device body is avoided. UTILITY MODEL CONTENTS

[0005] In order to overcome the problem that the existing PWM current -adjusting even DCDC parallel device does not have the automatic wire pulling function when using, when the fire and other dangerous conditions occur, the cable cannot be pulled out from the device, the device is easily damaged more seriously.

[0006] The technical scheme of the utility model is: PWM current -adjusting even DCDC parallel device, including DCDC device body, still including installation frame, first drive motor, screw rod, moving seat, first connecting rod and clamping assembly, the right side surface of DCDC device body is provided with installation frame in the front position, the rear side surface of installation frame is installed with first drive motor, the output end of first drive motor is connected with one end of screw rod through the rear side wall of installation frame, the other end of screw rod is rotatably connected with the inner surface front side of installation frame, the outer surface of screw rod is connected with moving seat through screw, the upper surface of moving seat is provided with one end of first connecting rod, the other end of first connecting rod is connected with clamping assembly.

[0007] Preferably, the joint cable can be clamped by setting the clamping assembly, which can prevent the wire from falling off during normal operation, and when a fire or other dangerous situation occurs, the first drive motor is started, the output end of which can drive the screw to rotate, and the screw can drive the moving seat to move forward when rotating, so that the first connecting rod drives the clamping assembly to move forward, thereby pulling out the joint cable, avoiding more serious damage to the DCDC device body, thereby solving the problem that the existing PWM flow regulating uniform DCDC parallel device does not have an automatic wire pulling function when in use, and when a fire or other dangerous situation occurs, the cable cannot be pulled out of the device, which is easy to cause more serious damage to the device.

[0008] As a preferred, the clamping assembly comprises a fixed plate, a screw, a bearing seat, a pressing plate and a limiting groove; the end of the first connecting rod away from the moving seat is provided with a fixed plate, the upper surface of the fixed plate is threadedly connected with two symmetrical screws, the bottom surface of the screw is rotatably connected with a bearing seat, the bottom surface of the bearing seat is provided with a pressing plate, and the upper surface of the pressing plate and the lower surface of the fixed plate are both symmetrically provided with three limiting grooves.

[0009] As a preferred, the left side surface of the DCDC device body is provided with a limiting frame at a front position, the inner surface of the limiting frame is provided with limiting rods on the front and back sides, the outer surface of the limiting rod is slidably connected with a limiting seat, the upper surface of the limiting seat is installed with one end of a second connecting rod, and the other end of the second connecting rod is connected with the upper surface of the fixed plate.

[0010] As a preferred, the bottom surface of the DCDC device body is installed with a mounting plate at a front position on the right side, the left side surface of the mounting plate is provided with a second drive motor, the output end of the second drive motor is connected with a rotating shaft, and the outer surface of the rotating shaft is sleeved with a rubber sleeve.

[0011] As a preferred, the bottom surface of the DCDC device body is provided with a supporting plate at a position corresponding to the mounting plate on the left side, the right side surface of the supporting plate is embeddedly installed with an auxiliary bearing, and the inner ring surface of the auxiliary bearing is connected with the outer surface of the rotating shaft.

[0012] As a preferred, the bottom surface of the DCDC device body is provided with a protective shell, the bottom surface of the DCDC device body is provided with two symmetrical damping sliding grooves, the upper surface of the protective shell is provided with a damping sliding block at a position corresponding to the damping sliding groove, and the damping sliding block is slidably connected with the damping sliding groove.

[0013] As a preferred, the bottom surface of the DCDC device body is provided with supporting legs at the corner positions, and the bottom surface of the supporting leg is provided with a gasket.

[0014] The beneficial effects of the present application are as follows:

[0015] 1. The clamping assembly can be set to clamp the joint cable, which can prevent the wire from falling off during normal operation. When a fire or other dangerous situation occurs, the first drive motor is started, and its output end can drive the screw to rotate. The screw can drive the moving seat to move forward when it rotates, so that the first connecting rod drives the clamping assembly to move forward, thereby pulling out the joint cable, avoiding more serious damage to the DCDC device body, thereby solving the problem that the existing PWM flow regulating uniform DCDC parallel device does not have an automatic wire pulling function when in use, and cannot pull out the cable from the device when a fire or other dangerous situation occurs, which is easy to cause more serious damage to the device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The PWM flow regulating uniform DCDC parallel device of the utility model is shown in the three-dimensional structure schematic diagram.

[0017] Figure 2 The clamping assembly of the PWM flow regulating uniform DCDC parallel device of the utility model is shown in the three-dimensional structure schematic diagram.

[0018] Figure 3 The shaft of the PWM flow regulating uniform DCDC parallel device of the utility model is shown in the three-dimensional structure schematic diagram.

[0019] Figure 4 The PWM flow regulating uniform DCDC parallel device of the utility model is shown in the three-dimensional structure schematic diagram.

[0020] Figure 5 The protective shell of the PWM flow regulating uniform DCDC parallel device of the utility model is shown in the three-dimensional structure schematic diagram.

[0021] The reference signs are explained: 1, DCDC device body; 2, mounting frame; 3, first drive motor; 4, screw; 5, moving seat; 6, first connecting rod; 71, fixed plate; 72, screw; 73, bearing seat; 74, pressing plate; 75, limiting groove; 8, limiting frame; 9, limiting rod; 10, limiting seat; 11, second connecting rod; 12, mounting plate; 13, second drive motor; 14, shaft; 15, rubber sleeve; 16, supporting plate; 17, auxiliary bearing; 18, protective shell; 19, damping sliding groove; 20, damping sliding block; 21, supporting leg; 22, gasket. DETAILED DESCRIPTION

[0022] The utility model will be further explained in combination with the drawings and examples.

[0023] Please refer to Figures 1-5The utility model provides a kind of embodiment: PWM current-regulating uniform DCDC parallel device, including DCDC device ontology 1;Still including installation frame 2, first drive motor 3, screw rod 4, moving seat 5, first connecting rod 6 and clamping assembly, the right side surface of DCDC device ontology 1 is set with installation frame 2 in front position, the rear side surface of installation frame 2 is installed with first drive motor 3, the output end of first drive motor 3 is connected with one end of screw rod 4, which is penetrated through the rear side wall of installation frame 2, the other end of screw rod 4 is rotatably connected with the inner surface front side of installation frame 2, the outer surface of screw rod 4 is penetrated and is connected with moving seat 5 with screw thread, the upper surface of moving seat 5 is set with one end of first connecting rod 6, the other end of first connecting rod 6 is connected with clamping assembly, by setting clamping assembly, joint cable can be clamped, can play the effect of preventing thread in normal operation, when dangerous situation such as fire source appears, start first drive motor 3, its output end can drive screw rod 4 to rotate, screw rod 4 can drive moving seat 5 that is screwed with it to move forward when rotating, to make first connecting rod 6 drive clamping assembly to move forward, to pull out joint cable, avoid more serious damage to DCDC device ontology 1, to solve the problem that existing PWM current-regulating uniform DCDC parallel device does not have automatic pulling function when using, when dangerous situation such as fire appears, cable cannot be pulled out from device, easy to cause more serious damage to device.

[0024] Please refer to Figures 1-4In the embodiment, the clamping assembly comprises a fixed plate 71, a screw 72, a bearing seat 73, a pressing plate 74 and a limiting groove 75; the end of the first connecting rod 6 away from the moving base 5 is provided with the fixed plate 71, the upper surface of the fixed plate 71 is provided with two symmetrical screws 72, the bottom surface of the screw 72 is rotatably connected with the bearing seat 73, the bottom surface of the bearing seat 73 is provided with the pressing plate 74, the upper surface of the pressing plate 74 and the lower surface of the fixed plate 71 are symmetrically provided with three groups of limiting grooves 75, the cable connector is passed between the fixed plate 71 and the pressing plate 74 when the cable is connected, and then the screw 72 is twisted to drive the pressing plate 74 to move upwards, so that the cable is pressed and positioned, the left surface of the DCDC device body 1 is provided with a limiting frame 8 at the front position, the inner surface of the limiting frame 8 is provided with limiting rods 9 at the front and rear sides, the outer surface of the limiting rod 9 is slidably connected with a limiting seat 10, one end of the second connecting rod 11 is mounted on the upper surface of the limiting seat 10, the other end of the second connecting rod 11 is connected with the upper surface of the fixed plate 71, the limiting rod 9 and the limiting seat 10 are arranged to make the second connecting rod 11 drive the limiting seat 10 to slide on the outer surface of the limiting rod 9 when the fixed plate 71 moves, the limiting rod 9 can limit the sliding direction of the limiting seat 10, so as to improve the stability of the movement of the fixed plate 71 and ensure that the cable can be smoothly pulled out, the bottom surface of the DCDC device body 1 is provided with a mounting plate 12 at the right side and the front position, the left side surface of the mounting plate 12 is provided with a second driving motor 13, the output end of the second driving motor 13 is connected with a rotating shaft 14, the outer surface of the rotating shaft 14 is provided with a rubber sleeve 15, the second driving motor 13 is arranged to rotate the rotating shaft 14 when the output end rotates, the cable is wound around the outer surface of the rubber sleeve 15 when the cable is connected, so that a certain tension can be generated on the cable by friction when the rotating shaft 14 rotates, thereby assisting the pulling of the cable.

[0025] Please refer to Figures 1-5In the embodiment, the left side of the bottom surface of the DCDC device body 1 is provided with a support plate 16 corresponding to the position of the mounting plate 12, the right side surface of the support plate 16 is embedded with an auxiliary bearing 17, the inner ring surface of the auxiliary bearing 17 is connected with the outer surface of the rotating shaft 14, the auxiliary bearing 17 and the support plate 16 can provide support for the other end of the rotating shaft 14, thereby improving the stability of the rotating shaft 14, the bottom surface of the DCDC device body 1 is provided with a protective shell 18, the bottom surface of the DCDC device body 1 is provided with two symmetrical damping sliding grooves 19, the upper surface of the protective shell 18 is provided with a damping sliding block 20 corresponding to the position of the damping sliding groove 19, the damping sliding block 20 is connected with the damping sliding groove 19, the damping sliding groove 19 and the damping sliding block 20 can facilitate the movement of the position of the protective shell 18, the protective shell 18 is slid to the rear side when wiring, and is slid to the front side for protection when normally used, the bottom surface of the DCDC device body 1 is provided with a support leg 21 at the corner position, and the bottom surface of the support leg 21 is provided with a gasket 22, the support leg 21 and the gasket 22 can raise the device to a certain height, thereby facilitating the movement of the protective shell 18.

[0026] When working, the joint is passed between the fixed plate 71 and the pressing plate 74 when the cable is inserted, and then the screw 72 is twisted to drive the pressing plate 74 to move upwards, thereby positioning the cable. By setting the limiting rod 9 and the limiting seat 10, the second connecting rod 11 drives the limiting seat 10 to slide on the outer surface of the limiting rod 9 when the fixed plate 71 moves, the limiting rod 9 can limit the sliding direction of the limiting seat 10, thereby improving the stability of the movement of the fixed plate 71 and ensuring smooth wiring. By setting the second driving motor 13, the output end drives the rotating shaft 14 to rotate when working, the cable is wound around the outer surface of the rubber sleeve 15 when wiring, thereby generating a certain tension on the cable when the rotating shaft 14 rotates, thereby assisting in wiring. By setting the auxiliary bearing 17 and the support plate 16, the other end of the rotating shaft 14 can be supported, thereby improving the stability of the rotating shaft 14, by setting the damping sliding groove 19 and the damping sliding block 20, the position of the protective shell 18 can be moved, the protective shell 18 is slid to the rear side when wiring, and is slid to the front side for protection when normally used, by setting the support leg 21 and the gasket 22, the device can be raised to a certain height, thereby facilitating the movement of the protective shell 18.

[0027] Through the above steps, the joint cable can be clamped by setting the clamping assembly, which can prevent the wire from falling off during normal operation. In the event of a fire or other dangerous situation, the first drive motor 3 is started, and its output end can drive the screw rod 4 to rotate. The screw rod 4 can drive the moving seat 5 threaded with it to move forward when rotating, so that the first connecting rod 6 drives the clamping assembly to move forward, thereby pulling out the joint cable, avoiding more serious damage to the DCDC device body 1. Thus, the problem of the existing PWM flow uniform DCDC parallel device not having an automatic wire pulling function when in use, and being unable to pull the cable out of the device in the event of a fire or other dangerous situation, which can easily cause more serious damage to the device, is solved.

Claims

1. A PWM current-regulating uniform DCDC parallel device, comprising a DCDC device body (1); characterized in that: The mounting frame (2), the first driving motor (3), the screw rod (4), the moving seat (5), the first connecting rod (6) and the clamping assembly are further included. The mounting frame (2) is arranged at the front position of the right side surface of the DCDC device body (1), the first driving motor (3) is arranged at the rear surface of the mounting frame (2), one end of the screw rod (4) is connected to the output end of the first driving motor (3) and penetrates through the rear wall of the mounting frame (2), the other end of the screw rod (4) is rotatably connected to the front side of the inner surface of the mounting frame (2), the moving seat (5) is threadedly connected to the outer surface of the screw rod (4), the one end of the first connecting rod (6) is arranged on the upper surface of the moving seat (5), and the other end of the first connecting rod (6) is connected to the clamping assembly.

2. The PWM current-sharing uniform DC-DC parallel device according to claim 1, characterized in that: The clamping assembly comprises the fixed plate (71), the screw (72), the bearing seat (73), the pressing plate (74) and the limiting groove (75). The one end of the first connecting rod (6) away from the moving seat (5) is provided with the fixed plate (71), the upper surface of the fixed plate (71) is threadedly connected with two symmetrical screws (72), the bottom surface of the screw (72) is rotatably connected with the bearing seat (73), the bottom surface of the bearing seat (73) is provided with the pressing plate (74), and the upper surface of the pressing plate (74) and the lower surface of the fixed plate (71) are symmetrically provided with three groups of limiting grooves (75).

3. The PWM current-sharing uniform DC-DC parallel device of claim 2, wherein: The limiting frame (8) is arranged at the front position of the left side surface of the DCDC device body (1), the inner surface of the limiting frame (8) is provided with the limiting rods (9) at the front and rear sides, the outer surface of the limiting rod (9) is slidably connected with the limiting seat (10), the one end of the second connecting rod (11) is arranged on the upper surface of the limiting seat (10), and the other end of the second connecting rod (11) is connected to the upper surface of the fixed plate (71).

4. The PWM current-sharing uniform DC-DC parallel device of claim 1, wherein: The mounting plate (12) is arranged at the front position of the right side of the bottom surface of the DCDC device body (1), the left side surface of the mounting plate (12) is provided with the second driving motor (13), the output end of the second driving motor (13) is connected with the rotating shaft (14), and the outer surface of the rotating shaft (14) is sleeved with the rubber sleeve (15).

5. The PWM current-regulated uniform DC-DC parallel device according to claim 4, characterized in that: The supporting plate (16) is arranged at the position corresponding to the mounting plate (12) on the left side of the bottom surface of the DCDC device body (1), the right side surface of the supporting plate (16) is embedded with the auxiliary bearing (17), and the inner ring surface of the auxiliary bearing (17) is connected with the outer surface of the rotating shaft (14).

6. The PWM current-sharing uniform DC-DC parallel device of claim 1, wherein: The bottom surface of the DCDC device body (1) is provided with the protective shell (18), the bottom surface of the DCDC device body (1) is provided with two symmetrical damping sliding grooves (19), the upper surface of the protective shell (18) is provided with the damping sliding block (20) at the position corresponding to the damping sliding groove (19), and the damping sliding block (20) is slidably connected with the damping sliding groove (19).

7. The PWM current-sharing uniform DC-DC parallel device of claim 1, wherein: The supporting legs (21) are arranged at the corner positions of the bottom surface of the DCDC device body (1), and the bottom surface of the supporting leg (21) is provided with the gasket (22).

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