Parallel direct-current power pack

Abstract

The utility model belongs to the technical field of electronic power supplies, and particularly relates to a parallel direct-current power pack which comprises a box body, vertical frames are fixed on two sides in the box body, and first guide frames are fixed on the lower portions in the vertical frames. A second guide frame, a third guide frame, a fourth guide frame and a fifth guide frame are sequentially and slidably connected into the vertical frame from bottom to top, mounting frames are fixed between the first guide frame, the second guide frame, the third guide frame, the fourth guide frame and the fifth guide frame on the two sides, and mounting grooves are formed in the tops and the bottoms of the mounting frames; the problems that a battery pack is formed by connecting a plurality of storage batteries in parallel, so that the current of a power pack is determined according to the number of the storage batteries connected in parallel with the battery pack, and the size of the battery pack depends on the number of the storage batteries are solved; and other problems cannot be solved.

Description

Technical Field

[0001] This utility model belongs to the field of electronic power supply technology, specifically relating to a parallel DC power supply group. Background Technology

[0002] A DC power supply has two electrodes, positive and negative. The positive electrode has a higher potential and the negative electrode has a lower potential. When the two electrodes are connected to the circuit, they can maintain a constant potential difference between the two ends of the circuit, thereby forming a current from the positive electrode to the negative electrode in the external circuit. A DC power supply is an energy conversion device that converts other forms of energy into electrical energy to supply the circuit and maintain a steady current flow. In order to increase the output power of the circuit, DC power supplies are usually used in parallel.

[0003] According to the public announcement (CN217904862U), a fully modular parallel DC power supply system is disclosed. This technology discloses a technical solution involving the coordinated use of a water guide box, heat-conducting shell, coolant tank, semiconductor cooler, water pump, conductive sheet, conductive block, brush, first connector, outer shell, servo motor, rotating rod, turntable, connector, brush, conductive wire, insulating wire, conductive ring, conductive plate, second connector, and controller. It has the technical effect of "solving the problems of existing fully modular parallel DC power supply systems, which typically involve multiple DC power supplies installed in the same location and connected in parallel. During use, the DC power supply generates a large amount of heat, which cannot be dissipated well, causing damage to the DC power supply, reducing its service life, and making it difficult to adjust the number of DC power supplies connected in parallel in the circuit, thus hindering the adjustment of the circuit output power."

[0004] However, since the battery pack is composed of several batteries connected in parallel, the current of the power supply will be determined by the number of batteries connected in parallel. This makes the size of the battery pack dependent on the number of batteries. Since the enclosure in the above scheme can only install DC power supplies of a uniform size, it cannot be adapted to others.

[0005] To address the aforementioned issues, this application proposes a parallel DC power supply group. Utility Model Content

[0006] To address the aforementioned problems in the existing technology, this utility model provides a parallel DC power supply unit, which features automatic adjustment of the synchronous and equidistant lifting of each mounting bracket, thereby adapting to battery packs installed at different heights.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a parallel DC power supply unit, comprising a housing, with uprights fixed on both sides of the housing, a first guide frame fixed at the bottom of the uprights, and a second, third, fourth, and fifth guide frames slidably connected from bottom to top inside the uprights. Mounting frames are fixed between the first, second, third, fourth, and fifth guide frames on both sides. Mounting slots are provided at the top and bottom of the mounting frames, and battery packs are installed inside the mounting slots. Two upper supports are pivotally connected to the middle of the fifth guide frame, and lower supports are pivotally connected to the lower ends of the upper supports. The lower ends of both lower supports are pivotally connected to the middle of the first guide frame. Upper sliders, middle sliders, and lower sliders are slidably connected inside the second, third, and fourth guide frames, respectively. An electric push-pull rod is installed at the top of the housing, and the output end of the electric push-pull rod is connected to the uppermost mounting frame.

[0008] As a preferred technical solution of the parallel DC power supply group of this utility model, two insulating frames are connected between the two uprights. A positive terminal and a negative terminal are fixed on the two insulating frames respectively. Four conductive plates are sleeved on both the positive terminal and the negative terminal. The conductive plates on the positive terminal are connected to the positive terminal of the battery pack, and the conductive plates on the negative terminal are connected to the negative terminal of the battery pack.

[0009] As a preferred technical solution of the parallel DC power supply group of this utility model, a cooling fan is installed on the upper part of the inside of the box.

[0010] As a preferred technical solution of the parallel DC power supply group of this utility model, the mounting slot on the mounting bracket is provided with heat dissipation holes, and the mounting bracket is provided with ventilation holes.

[0011] As a preferred technical solution of the parallel DC power supply group of this utility model, the front end of the enclosure is hinged with a door.

[0012] As a preferred technical solution of the parallel DC power supply group of this utility model, the lower slider inside the second guide frame is pivotally connected to the lower support, the middle slider inside the third guide frame is pivotally connected to the upper and lower supports, and the lower slider inside the fourth guide frame is pivotally connected to the upper support.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the output end of the electric push-pull rod drives the mounting bracket on the fifth guide frame to rise and fall. At the same time, the fifth guide frame drives the fourth guide frame, the third guide frame, and the second guide frame to rise and fall through the upper bracket and the lower bracket, the lower slider, the middle slider, and the upper slider. This allows the fourth guide frame, the third guide frame, and the second guide frame to drive the corresponding mounting bracket to rise and fall. By synchronously and equally raising and lowering the mounting brackets on the fifth guide frame, the fourth guide frame, the third guide frame, and the second guide frame, the spacing between each adjacent mounting bracket can be adjusted according to the height of the installed battery pack, thereby fixing the battery pack installed between each adjacent mounting bracket.

[0014] Both the conductive plates on the positive and negative terminals can slide, allowing the conductive plates to be adjusted to the corresponding height according to the position of the mounting bracket. Furthermore, both the conductive plates on the positive and negative terminals are fixed with bolts to prevent loose connections between the conductive plates and the positive or negative terminals, which could lead to poor contact. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the power supply unit in this utility model;

[0018] Figure 3 This is a side view of the power supply unit in this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the central support frame of this utility model;

[0020] Figure 5 This is a schematic diagram of the mounting bracket in this utility model;

[0021] In the diagram: 1. Housing; 2. Stand; 3. First guide frame; 4. Second guide frame; 5. Third guide frame; 6. Fourth guide frame; 7. Fifth guide frame; 8. Mounting frame; 9. Cooling fan; 10. Mounting slot; 11. Battery pack; 12. Upper bracket; 13. Lower bracket; 14. Upper slider; 15. Middle slider; 16. Lower slider; 17. Electric push-pull rod; 18. Insulating frame; 19. Positive terminal connector; 20. Negative terminal connector; 21. Conductive sheet; 22. Heat dissipation hole. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figure 1-5 This utility model provides the following technical solution: A parallel DC power supply unit includes a housing 1. Uprights 2 are fixed to both sides of the housing 1. A first guide frame 3 is fixed to the lower part of the uprights 2. A second guide frame 4, a third guide frame 5, a fourth guide frame 6, and a fifth guide frame 7 are slidably connected from bottom to top inside the uprights 2. Mounting frames 8 are fixed between the first guide frame 3, the second guide frame 4, the third guide frame 5, the fourth guide frame 6, and the fifth guide frame 7 on both sides. Mounting slots 10 are provided at the top and bottom of the mounting frames 8. A battery pack 11 is installed inside the mounting slots 10 on the mounting frames 8. Two upper supports 12 are pivotally connected to the middle of the fifth guide frame 7. Lower supports 13 are pivotally connected to the lower ends of the upper supports 12, and the lower ends of the two lower supports 13 are pivotally connected to the middle of the first guide frame 3. Upper sliders 1 are slidably connected inside the second guide frame 4, the third guide frame 5, and the fourth guide frame 6, respectively. 4. The middle slider 15 and the lower slider 16 are connected to the uppermost mounting bracket 8. An electric push-pull rod 17 is installed on the top of the housing 1, and the output end of the electric push-pull rod 17 is connected to the uppermost mounting bracket 8. In this embodiment, the output end of the electric push-pull rod 17 drives the mounting bracket 8 on the fifth guide frame 7 to rise and fall. At the same time, the fifth guide frame 7 drives the fourth guide frame 6, the third guide frame 5 and the second guide frame 4 to rise and fall through the upper bracket 12 and the lower bracket 13 via the lower slider 16, the middle slider 15 and the upper slider 14. This allows the fourth guide frame 6, the third guide frame 5 and the second guide frame 4 to drive the corresponding mounting bracket 8 to rise and fall. By synchronously and equidistantly raising and lowering the mounting brackets 8 on the fifth guide frame 7, the fourth guide frame 6, the third guide frame 5 and the second guide frame 4, the spacing between each adjacent mounting bracket 8 can be adjusted according to the height of the installed battery pack 11, thereby fixing the battery pack 11 installed between each adjacent mounting bracket 8.

[0025] Specifically, two insulating frames 18 are connected between the two side frames 2. A positive terminal 19 and a negative terminal 20 are fixed on the two insulating frames 18 respectively. Four conductive pieces 21 are sleeved on both the positive terminal 19 and the negative terminal 20. The conductive pieces 21 on the positive terminal 19 are connected to the positive terminal of the battery pack 11, and the conductive pieces 21 on the negative terminal 20 are connected to the negative terminal of the battery pack 11. In this embodiment, the conductive pieces 21 on both the positive terminal 19 and the negative terminal 20 can slide, so that the conductive pieces 21 can be adapted to the corresponding height according to the position of the mounting frame 8. Furthermore, the conductive pieces 21 on both the positive terminal 19 and the negative terminal 20 are fixed with bolts to prevent the conductive pieces 21 from becoming loose and causing poor contact with the positive terminal 19 or the negative terminal 20.

[0026] Specifically, a cooling fan 9 is installed on the upper part of the inside of the housing 1. In this embodiment, the cooling fan 9 is used to ventilate and dissipate the heat generated by the battery pack 11 inside the housing 1.

[0027] Specifically, the mounting slot 10 on the mounting bracket 8 has heat dissipation holes 22 inside, and the mounting bracket 8 has ventilation holes inside. In this embodiment, the mounting slot 10 facilitates ventilation between adjacent battery packs 11.

[0028] Specifically, a door is hinged to the front end of the housing 1. In this embodiment, the door is closed during normal use, but can be opened when replacing or repairing the battery pack 11 to facilitate the insertion and removal of the battery pack 11.

[0029] Specifically, the lower slider 16 inside the second guide frame 4 is pivotally connected to the lower support 13, the middle slider 15 inside the third guide frame 5 is pivotally connected to the upper support 12 and the lower support 13, and the lower slider 16 inside the fourth guide frame 6 is pivotally connected to the upper support 12. In this embodiment, when the upper support 12 and the lower support 13 drive the fourth guide frame 6, the third guide frame 5 and the second guide frame 4 to rise and fall through the lower slider 16, the middle slider 15 and the upper slider 14, the lower slider 16, the middle slider 15 and the upper slider 14 slide along the interior of the fourth guide frame 6, the third guide frame 5 and the second guide frame 4 respectively.

[0030] The working principle and usage process of this utility model are as follows: First, the output end of the electric push-pull rod 17 drives the mounting bracket 8 on the fifth guide frame 7 to rise and fall. Simultaneously, the fifth guide frame 7, through the upper bracket 12 and lower bracket 13, drives the fourth guide frame 6, the third guide frame 5, and the second guide frame 4 to rise and fall via the lower slider 16, the middle slider 15, and the upper slider 14. This causes the fourth guide frame 6, the third guide frame 5, and the second guide frame 4 to respectively drive the corresponding mounting bracket 8 to rise and fall. By synchronously and equidistantly raising and lowering the mounting brackets 8 on the fifth guide frame 7, the fourth guide frame 6, the third guide frame 5, and the second guide frame 4, the mounting brackets can... The spacing between each adjacent mounting bracket 8 is adjusted according to the height of the installed battery pack 11, thereby fixing the battery pack 11 installed between each adjacent mounting bracket 8. Then, the conductive plates 21 on the positive terminal 19 and the negative terminal 20 can slide, so that the conductive plates 21 can be adapted to the height of the mounting bracket 8. The conductive plates 21 on the positive terminal 19 and the negative terminal 20 are fixed with bolts to prevent the conductive plates 21 from becoming loose and causing poor contact with the positive terminal 19 or the negative terminal 20.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A parallel DC power supply unit, comprising a housing (1), characterized in that: The box (1) has uprights (2) fixed on both sides inside. The first guide frame (3) is fixed at the bottom inside the uprights (2). The second guide frame (4), the third guide frame (5), the fourth guide frame (6) and the fifth guide frame (7) are slidably connected from bottom to top inside the uprights (2). Mounting brackets (8) are fixed between the first guide frame (3), the second guide frame (4), the third guide frame (5), the fourth guide frame (6) and the fifth guide frame (7) on both sides. Mounting slots (10) are opened at the top and bottom of the mounting brackets (8). The mounting slots (10) on the mounting brackets (8) are filled with... The battery pack (11) is installed in the middle of the fifth guide frame (7). Two upper brackets (12) are pivotally connected to the middle of the fifth guide frame (7). The lower end of the upper bracket (12) is pivotally connected to the lower bracket (13). The lower ends of the two lower brackets (13) are pivotally connected to the middle of the first guide frame (3). The upper slider (14), middle slider (15) and lower slider (16) are slidably connected inside the second guide frame (4), the third guide frame (5) and the fourth guide frame (6), respectively. An electric push-pull rod (17) is installed on the top of the box (1). The output end of the electric push-pull rod (17) is connected to the uppermost mounting frame (8).

2. The parallel DC power supply group according to claim 1, characterized in that: Two insulating frames (18) are connected between the two uprights (2). A positive terminal connector (19) and a negative terminal connector (20) are fixed on the two insulating frames (18). Four conductive pieces (21) are sleeved on both the positive terminal connector (19) and the negative terminal connector (20). The conductive pieces (21) on the positive terminal connector (19) are connected to the positive terminal of the battery pack (11), and the conductive pieces (21) on the negative terminal connector (20) are connected to the negative terminal of the battery pack (11).

3. A parallel DC power supply group according to claim 1, characterized in that: A cooling fan (9) is installed on the upper part of the inside of the housing (1).

4. A parallel DC power supply group according to claim 1, characterized in that: The mounting slot (10) on the mounting bracket (8) has a heat dissipation hole (22) inside, and the mounting bracket (8) has a ventilation hole inside.

5. A parallel DC power supply group according to claim 1, characterized in that: The front end of the box (1) is hinged with a box door.

6. A parallel DC power supply group according to claim 1, characterized in that: The lower slider (16) inside the second guide frame (4) is pivotally connected to the lower support (13), the middle slider (15) inside the third guide frame (5) is pivotally connected to the upper support (12) and the lower support (13), and the lower slider (16) inside the fourth guide frame (6) is pivotally connected to the upper support (12).

Images