Constant-current constant-voltage undisturbed switching charging and discharging machine

Abstract

The utility model belongs to the technical field of charging and discharging equipment, and discloses a constant-current constant-voltage undisturbed switching charging and discharging machine, which comprises a box body, connecting insertion pipes and a protective shell, the two connecting insertion pipes are arranged on the front surface of the box body in a penetrating manner, a plurality of anti-skid rods are arranged on the outer walls of the connecting insertion pipes in a penetrating manner, and first springs are arranged on the outer walls of the anti-skid rods in a surrounding manner; a through hole is formed in the outer wall of the anti-skid rod, and a plurality of guide rings are installed on the outer wall of the connecting insertion pipe. According to the utility model, a cable can be fixed by arranging the connecting insertion pipe, so that the cable is prevented from falling off from the device, when the connecting rope shrinks, the connecting rope pulls the anti-skid rod to descend through the guide ring, so that the anti-skid rod is inserted into the connecting insertion pipe, and at the moment, the anti-skid rod is in contact with the outer wall of the cable; therefore, the cable is prevented from sliding in the connecting insertion pipe, and the cable is fixed in the connecting insertion pipe and prevented from falling off.

Description

Technical Field

[0001] This utility model belongs to the field of charge and discharge machine technology, specifically relating to a constant current and constant voltage disturbance-free switching charge and discharge machine. Background Technology

[0002] Constant current and constant voltage charging methods have been widely applied in various battery charging scenarios, such as solar photovoltaic power generation systems and electric vehicle charging. This method effectively protects the battery and improves charging efficiency by precisely controlling the charging current and voltage. Programmable logic controllers (PLCs) and touchscreen technologies have also seen widespread application in various control systems with the development of industrial automation. The combination of PLCs and touchscreens enables automated control and remote monitoring of equipment, improving reliability and ease of use. PWM (Pulse Width Modulation) control technology is a commonly used power electronic control technology. By adjusting the duty cycle of the PWM signal, the output voltage and current of the circuit can be controlled. This technology is also widely used in the field of charge / discharge machines. Traditional charge / discharge machines may generate disturbances when switching between constant current and constant voltage charging modes, affecting the stable operation of the equipment. Constant current and constant voltage disturbance-free switching charge / discharge machines, however, can achieve smooth switching between the two charging modes, ensuring stable operation of the equipment.

[0003] In existing technologies, when charging and discharging a battery under constant voltage and constant current, a cable is required to connect the battery and the charger / discharger. When using a cable for connection, due to the weight of the cable itself and differences in the usage environment, the cable often comes loose from the interface, leading to charging and discharging failure. In addition, since the battery and the charger / discharger are still in working condition and the equipment is energized, if the staff reconnects the cable at this time, there is a risk of electric shock, which affects the safety of the staff. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a constant current and constant voltage disturbance-free switching charging and discharging machine, which solves the problems of cable detachment and electric shock in the existing technology.

[0005] The purpose of this utility model can be achieved through the following technical solution: a constant current and constant voltage disturbance-free switching charge and discharge machine, including a housing, a connecting tube and a protective shell;

[0006] Two connecting tubes are installed through the front of the box. Multiple anti-slip rods are installed through the outer wall of the connecting tubes. A first spring is installed around the outer wall of the anti-slip rod. The outer wall of the anti-slip rod is provided with a through hole. Multiple guide rings are installed on the outer wall of the connecting tube.

[0007] The inner wall of the box is fitted with a protective shell.

[0008] In some disclosures, the bottom of the box is equipped with casters, the outer wall and front of the box are provided with ventilation holes, the front of the box is equipped with an adjustment knob, and the inner bottom wall of the box is equipped with an electric telescopic rod.

[0009] In some disclosures, a charger / discharger is installed on the inner wall of the housing, and a connection hole is provided on the outer wall of the charger / discharger.

[0010] In some disclosures, the top of the electric telescopic rod is equipped with a lifting plate, the top of the lifting plate is equipped with a diagonal bar, and the top of the diagonal bar extends into the interior of the connecting tube.

[0011] In some disclosures, the top of the connecting tube has a groove, the top of the groove is fitted with a U-shaped fixing plate, the outer wall of the fixing plate is fitted with a rotating shaft, the outer wall of the rotating shaft is fitted with a driven gear, the outer wall of the fixing plate has a cable hole, the inner wall of the fixing plate is fitted with a take-up shaft, the outer wall of the take-up shaft is fitted with a torsion spring, the outer wall of the take-up shaft is fitted with a second gear, the outer wall of the take-up shaft is wound with a connecting rope, and the connecting rope passes through the cable hole and connects to the anti-slip rod and the guide ring.

[0012] In some disclosures, the bottom of the protective shell is equipped with two cable holes, an emergency rod is installed through the outer wall of the protective shell, a push plate is installed at one end of the emergency rod, and two conductive posts are installed on the inner wall of the protective shell, and the conductive posts are electrically connected to the cable holes respectively.

[0013] In some disclosures, a trigger rod is installed through the bottom of the protective shell, a buffer plate is installed at the bottom of the trigger rod, a return spring is installed around the outer wall of the trigger rod, a protrusion is installed on the outer wall of the trigger rod, multiple support rods are installed on the inner wall of the protective shell, a fixing ring is installed at one end of the support rod, an insulating plate is slidably installed on the inner wall of the fixing ring, and the insulating plate is located between two conductive posts, and a conductive block is installed on the outer wall of the insulating plate.

[0014] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0015] A fixed connection refers to a connection in which parts or components are fixed in place and there is no relative movement between them;

[0016] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.

[0017] Threaded connections are a type of detachable fixed connection with advantages such as simple structure, reliable connection, and convenient assembly and disassembly. They are widely used in mechanical engineering and connection structure fields.

[0018] A sliding connection is a connection between parts that allows the parts to slide against each other.

[0019] The beneficial effects of this utility model are:

[0020] 1. This utility model can fix the cable by setting a connecting tube, thereby preventing the cable from falling off the device. When the connecting rope retracts, the connecting rope pulls the anti-slip rod down through the guide ring, so that the anti-slip rod is inserted into the inside of the connecting tube. At this time, the anti-slip rod contacts the outer wall of the cable, thereby preventing the cable from sliding inside the connecting tube, and thus fixing the cable inside the connecting tube to prevent it from falling off.

[0021] 2. This utility model can cut off power when the cable breaks under strong tension by setting an insulating plate. When the cable breaks under external force, the protrusion rises and squeezes the insulating plate. The insulating plate moves and separates the conductive block from the conductive post, so that the conductive post comes into contact with the insulating plate. At this time, the device is in an open circuit state and the charger and discharger no longer work. At this time, the circuit of this device is disconnected, and no electric shock will occur when the staff touches it, thus protecting the staff. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the box body according to an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the connecting tube portion of an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the take-up shaft structure according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the bottom structure of the protective shell according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the side cross-sectional structure of the protective shell according to an embodiment of the present invention.

[0029] In the diagram: 1. Housing; 11. Casters; 12. Ventilation holes; 13. Adjustment knob; 2. Charger / discharger; 21. Connection hole; 3. Electric telescopic rod; 31. Lifting plate; 32. Diagonal rod; 4. Connecting tube; 41. Anti-slip rod; 42. First spring; 43. Guide ring; 5. Groove; 51. Fixing plate; 52. Rotating shaft; 53. Driven gear; 54. Cable hole; 55. Retractor; 56. Second gear; 57. Torsion spring; 6. Protective shell; 61. Cable hole; 62. Conductive post; 63. Emergency rod; 64. Push plate; 7. Trigger rod; 71. Buffer plate; 72. Return spring; 73. Protrusion; 74. Support rod; 75. Fixing ring; 76. Insulating plate; 77. Conductive block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A constant current and constant voltage disturbance-free switching charge / discharge machine includes a housing 1, connecting tubes 4, and a protective shell 6. Two connecting tubes 4 are installed through the front of the housing 1. Multiple anti-slip rods 41 are installed through the outer wall of each connecting tube 4. A first spring 42 is installed around the outer wall of each anti-slip rod 41. The outer wall of each anti-slip rod 41 has a through hole. Multiple guide rings 43 are installed on the outer wall of each connecting tube 4. The protective shell 6 is installed on the inner wall of the housing 1. A lifting plate 31 is installed on the top of the electric telescopic rod 3. A diagonal rod 32 is installed on the top of the lifting plate 31, and the top of the diagonal rod 32 extends... Inside the connecting tube 4, a groove 5 is provided at the top of the connecting tube 4, and a U-shaped fixing plate 51 is installed at the top of the groove 5. A rotating shaft 52 is installed through the outer wall of the fixing plate 51, and a driven gear 53 is installed on the outer wall of the rotating shaft 52. A cable hole 54 is provided on the outer wall of the fixing plate 51, and a take-up shaft 55 is installed on the inner wall of the fixing plate 51. A torsion spring 57 is installed around the outer wall of the take-up shaft 55, and a second gear 56 is installed on the outer wall of the take-up shaft 55. A connecting rope is wound around the outer wall of the take-up shaft 55, and the connecting rope passes through the cable hole 54 and connects to the anti-slip rod 41 and the guide ring 43.

[0032] Specifically, when connecting the battery to this device, the connecting cable is inserted into the connecting tube 4. At this time, the cable enters the interior of the connecting tube 4, and the outer wall of the cable contacts the driven gear 53. As the cable is continuously inserted, the driven gear 53 rotates and meshes with the second gear 56. The rotation of the second gear 56 drives the take-up shaft 55 to rotate, and at this time the take-up shaft 55 drives the connecting rope to tighten.

[0033] It should be noted that when the connecting rope retracts, the connecting rope pulls the anti-slip rod 41 down through the guide ring 43, so that the anti-slip rod 41 is inserted into the inside of the connecting tube 4. At this time, the anti-slip rod 41 contacts the outer wall of the cable, thereby preventing the cable from sliding inside the connecting tube 4, and thus fixing the cable inside the connecting tube 4 to prevent it from falling off.

[0034] It should be noted that during charging and discharging, the electric telescopic rod 3 rises, and at this time the lifting plate 31 drives the inclined rod 32 to rise. The inclined rod 32 enters the interior of the connecting tube 4 and can block the cable, thereby preventing the cable from slipping. After charging and discharging is completed, the electric telescopic rod 3 retracts, and the inclined rod 32 exits the connecting tube 4. At this time, the bottom of the cable is no longer blocked, and the cable can be pulled out. As the cable is pulled out, the anti-slip rod 41 gradually retracts, so that it will not block the cable.

[0035] It should be noted that the diagonal bar 32 and the anti-slip bar 41 can fix the cable inside the connecting tube 4, thereby effectively preventing the cable from falling off the device, improving the cable fixing effect, and maintaining the connection when the cable is pulled by external force, thus ensuring the charging and discharging process.

[0036] Please see Figure 1 and Figure 2 The bottom of the box 1 is equipped with casters 11, and the outer wall and front of the box 1 are provided with heat dissipation holes 12. The front of the box 1 is equipped with an adjustment knob 13. The inner bottom wall of the box 1 is equipped with an electric telescopic rod 3. The inner wall of the box 1 is equipped with a charger 2, and the outer wall of the charger 2 is provided with a connection hole 21.

[0037] Specifically, the caster wheel 11 facilitates the movement of the device, the heat dissipation hole 12 facilitates the heat dissipation of the charger 2, and the connection hole 21 facilitates the connection of the cable to the charger 2.

[0038] Please see Figure 2 , Figure 5 and Figure 6The protective shell 6 has two cable holes 61 installed at its bottom. An emergency rod 63 is installed through the outer wall of the protective shell 6. A push plate 64 is installed at one end of the emergency rod 63. Two conductive posts 62 are installed on the inner wall of the protective shell 6, and the conductive posts 62 are electrically connected to the cable holes 61 respectively. A trigger rod 7 is installed through the bottom of the protective shell 6. A buffer plate 71 is installed at the bottom of the trigger rod 7. A return spring 72 is installed around the outer wall of the trigger rod 7. A protrusion 73 is installed on the outer wall of the trigger rod 7. Multiple support rods 74 are installed on the inner wall of the protective shell 6. A fixing ring 75 is installed at one end of the support rod 74. An insulating plate 76 is slidably installed on the inner wall of the fixing ring 75, and the insulating plate 76 is located between two conductive posts 62. A conductive block 77 is installed on the outer wall of the insulating plate 76.

[0039] Specifically, when the cable is pulled by a strong external force and falls off the device, the cable joint will swing violently due to the large pulling force. When the cable joint swings, it will come into contact with the buffer plate 71, causing the buffer plate 71 to be impacted. At this time, the buffer plate 71 rises, which drives the trigger rod 7 to rise, the reset spring 72 extends, and the trigger rod 7 drives the protrusion 73 to rise.

[0040] It should be noted that when the device is working normally, the conductive block 77 is located between the conductive posts 62 and in contact with the conductive posts 62, and the circuit is in a connected state. When the cable is pulled and broken by external force, the protrusion 73 rises and squeezes the insulating plate 76. The insulating plate 76 moves, causing the conductive block 77 to separate from the conductive post 62, so that the conductive post 62 comes into contact with the insulating plate 76. At this time, the device is in an open circuit state, the charger 2 no longer works, the circuit of this device is disconnected, and no electric shock will occur when the staff touches it, thus protecting the staff.

[0041] Working principle: First, when connecting the battery to this device, the connecting cable is inserted into the connecting tube 4. At this time, the cable enters the interior of the connecting tube 4, and the outer wall of the cable contacts the driven gear 53. As the cable is continuously inserted, the driven gear 53 rotates and meshes with the second gear 56. The rotation of the second gear 56 drives the take-up shaft 55 to rotate, which in turn tightens the connecting rope. When the connecting rope retracts, it pulls the anti-slip rod 41 down through the guide ring 43, causing the anti-slip rod 41 to insert into the interior of the connecting tube 4. At this time, the anti-slip rod 41 contacts the outer wall of the cable, thus preventing the cable from sliding inside the connecting tube 4 and fixing the cable inside the connecting tube 4 to prevent it from falling off. Finally, when the cable is pulled by a strong external force and falls off the device, the cable is then... Excessive pulling force can cause the cable joint to swing violently. When the cable joint swings, it will contact the buffer plate 71, causing the buffer plate 71 to be impacted. At this time, the buffer plate 71 rises, causing the trigger rod 7 to rise, the reset spring 72 to extend, and the trigger rod 7 to cause the protrusion 73 to rise. When the device is working normally, the conductive block 77 is located between the conductive posts 62 and in contact with the conductive posts 62. At this time, the circuit is in a continuous state. When the cable is pulled and breaks by external force, the protrusion 73 rises and squeezes the insulating plate 76. The insulating plate 76 moves, causing the conductive block 77 to separate from the conductive post 62. Thus, the conductive post 62 comes into contact with the insulating plate 76. At this time, the device is in an open circuit state, the charger 2 no longer works, and the circuit of this device is disconnected. When the staff touches it, there will be no electric shock, thus protecting the staff.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims of this utility model.

Claims

1. A constant current and constant voltage disturbance-free switching charge / discharge machine, characterized in that, Includes a housing (1), a connecting tube (4), and a protective shell (6); Two connecting tubes (4) are installed through the front of the box (1). Multiple anti-slip rods (41) are installed through the outer wall of the connecting tubes (4). A first spring (42) is installed around the outer wall of the anti-slip rods (41). The outer wall of the anti-slip rods (41) is provided with a through hole. Multiple guide rings (43) are installed on the outer wall of the connecting tubes (4). The inner wall of the box (1) is fitted with a protective shell (6).

2. The constant current and constant voltage disturbance-free switching charge / discharge machine according to claim 1, characterized in that, The bottom of the box (1) is equipped with casters (11), and the outer wall and front of the box (1) are provided with heat dissipation holes (12). An adjustment knob (13) is installed on the front of the box (1), and an electric telescopic rod (3) is installed on the inner bottom wall of the box (1).

3. The constant current and constant voltage disturbance-free switching charge / discharge machine according to claim 1, characterized in that, The inner wall of the housing (1) is equipped with a charger (2), and the outer wall of the charger (2) is provided with a connection hole (21).

4. The constant current and constant voltage disturbance-free switching charge / discharge machine according to claim 2, characterized in that, The electric telescopic rod (3) has a lifting plate (31) installed on its top, and a diagonal rod (32) is installed on the top of the lifting plate (31), with the top of the diagonal rod (32) extending into the interior of the connecting tube (4).

5. The constant current and constant voltage disturbance-free switching charge / discharge machine according to claim 1, characterized in that, The top of the connecting tube (4) is provided with a groove (5), and a U-shaped fixing plate (51) is installed on the top of the groove (5). A rotating shaft (52) is installed through the outer wall of the fixing plate (51). A driven gear (53) is installed on the outer wall of the rotating shaft (52). A cable hole (54) is provided on the outer wall of the fixing plate (51). A take-up shaft (55) is installed on the inner wall of the fixing plate (51). A torsion spring (57) is installed around the outer wall of the take-up shaft (55). A second gear (56) is installed on the outer wall of the take-up shaft (55). A connecting rope is wound around the outer wall of the take-up shaft (55), and the connecting rope passes through the cable hole (54) and connects to the anti-slip rod (41) and the guide ring (43).

6. The constant current and constant voltage disturbance-free switching charge / discharge machine according to claim 1, characterized in that, The bottom of the protective shell (6) is equipped with two cable holes (61), and an emergency rod (63) is installed through the outer wall of the protective shell (6). A push plate (64) is installed at one end of the emergency rod (63). Two conductive posts (62) are installed on the inner wall of the protective shell (6), and the conductive posts (62) are electrically connected to the cable holes (61) respectively.

7. A constant current and constant voltage disturbance-free switching charge / discharge machine according to claim 6, characterized in that, A trigger rod (7) is installed through the bottom of the protective shell (6). A buffer plate (71) is installed at the bottom of the trigger rod (7). A reset spring (72) is installed around the outer wall of the trigger rod (7). A protrusion (73) is installed on the outer wall of the trigger rod (7). Multiple support rods (74) are installed on the inner wall of the protective shell (6). A fixing ring (75) is installed at one end of the support rod (74). An insulating plate (76) is slidably installed on the inner wall of the fixing ring (75). The insulating plate (76) is located between two conductive posts (62). A conductive block (77) is installed on the outer wall of the insulating plate (76).

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