Power supply equipment and wind generating set

Abstract

The utility model relates to the technical field of power supply devices, and provides power supply equipment, which comprises a shell, a battery assembly, a battery fixing frame and a power supply protection plate, the battery fixing frame and the power supply protection plate are arranged in the shell, the battery assembly is arranged in the shell through the battery fixing frame, and the power supply protection plate is arranged in the shell. The battery fixing frame comprises an upper fixing plate, a lower fixing plate and a connecting frame; the battery assembly is arranged between the upper fixing plate and the lower fixing plate, the upper fixing plate abuts against the upper end of the shell, clamping grooves are formed in the sides, facing the battery assembly, of the upper fixing plate and the lower fixing plate, and the clamping grooves are used for clamping and fixing single batteries in the battery assembly; the utility model further discloses a wind generating set which comprises the power supply equipment. According to the utility model, the battery assembly is fixed from multiple directions, so that the stability of the battery assembly is improved, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply devices, in particular to a power supply device and a wind turbine generator set. Background Art

[0002] Wind power has become an important area of ​​new energy application, and the requirements for related equipment have also increased accordingly. Pitch control is a key point. At present, the environment in which wind turbines are located is also constantly expanding. Among onshore wind farms, the highest altitude in the country has reached 4,700 meters, while offshore wind farms are the farthest wind farms in the country. The power and size of wind turbines are constantly increasing, and the application scenarios are constantly expanding. Higher requirements are put forward for the adaptability of wind turbines to changing wind speeds and the safety of wind turbines under extreme conditions. Pitch control is a more important part of wind turbine generator sets. It uses mechanical hydraulics or electric servos to control the rotation of wind turbine blades to adjust the pitch angle of the blades, change the angle of attack of the airflow on the blades, and then control the aerodynamic torque and aerodynamic power captured by the wind turbine blades. Therefore, in some extreme environments or natural disasters, the power grid cannot be activated normally, and the role of power supply is particularly important at this time.

[0003] CN212543087U discloses a DC power supply device for a pitch controller of a large wind turbine generator set, comprising a carrying box, a brakeable universal wheel is fixedly installed on the side position of the bottom of the carrying box, a movable handle is fixedly installed on the side position of the inner side of the upper end of the outer side of the carrying box, a first-level heat dissipation groove is preset at the outer position of the upper end surface of the outer side of the carrying box, an auxiliary handle groove is longitudinally opened on the inner position of the upper end of the outer side of the carrying box, an inspection cover is movably installed on the outer side of the carrying box, a second-level heat dissipation groove is opened at the lower end position of the outer front of the carrying box, a digital display screen is fixedly installed on the upper end position of one side of the upper end of the outer front of the carrying box, and a digital display screen is fixedly installed on the upper end position of the outer front of the carrying box. An alarm is fixedly installed at the upper end of the other side of the end, a control setting button area is preset at the lower end of one side of the upper end of the external front of the carrier box, a control adjustment knob area is preset at the lower end of one side of the upper end of the external front of the carrier box, input connection ports and output connection ports are respectively provided at both sides of the upper end of the back of the carrier box, a cooling fan is fixedly installed at the lower end of the back of the carrier box, a fault alarm component is fixedly installed at the middle position of the upper end of the interior of the carrier box, an assembly partition is longitudinally fixedly installed at the middle position of the lower end of the interior of the carrier box, a rectifier filter is fixedly installed at the upper end of the inner side of the carrier box, and a three-stage heat dissipation slot is provided on the outer side of the inspection cover.

[0004] In the existing technology, with the development of wind power technology, backup power supplies are more important in the pitch control of wind turbines and are used in many scenarios. The backup power supplies currently used for wind turbines require frequent transportation and movement during use, and the battery cells are prone to shaking inside. The battery cells are easily damaged by collisions with each other, affecting the supply of electricity. In addition, the installation and disassembly of existing backup power supplies are relatively inconvenient. Utility Model Content

[0005] In the existing technology, with the development of wind power technology, backup power supplies are more important in the pitch control of wind turbines and are used in many scenarios. The backup power supplies currently used for wind turbines require frequent transportation and movement during use, and the battery cells are prone to shaking inside. The battery cells are easily damaged by collisions with each other, affecting the supply of electricity. In addition, the installation and disassembly of existing backup power supplies are relatively inconvenient.

[0006] In view of this, the present invention aims to provide a power supply device. In the present invention, the power supply device includes a housing, a battery assembly, a battery fixing frame and a power protection board;

[0007] The battery fixing frame and the power protection board are arranged inside the housing, and the battery assembly is installed in the housing through the battery fixing frame;

[0008] The housing includes a bottom plate and a cover plate, and the bottom plate and the cover plate are connected to each other;

[0009] The battery fixing frame includes an upper fixing plate, a lower fixing plate and a connecting frame; the lower fixing plate is mounted on the bottom plate; the upper fixing plate is located on a side of the lower fixing plate away from the bottom plate, and the upper fixing plate is connected to the lower fixing plate via the connecting frame, the battery assembly is arranged between the upper fixing plate and the lower fixing plate, and the upper fixing plate abuts against the cover plate;

[0010] The upper fixing plate and the lower fixing plate are both provided with a card slot on one side facing the battery assembly, and the card slot is used for card connection and fixation of the battery cells in the battery assembly.

[0011] The power supply device disclosed by the utility model fixes the battery assembly by arranging a battery fixing frame, fixes the battery assembly from the upper and lower ends by means of an upper fixing plate and a lower fixing plate, fixes the sides of the battery assembly by means of connecting frames on both sides, and simultaneously cooperates with the card slots on the upper fixing plate and the lower fixing plate to fix each battery cell in the battery assembly individually, thereby avoiding shaking of the battery assembly in the shell and relative movement between the battery cells, ensuring the stability of battery charging and discharging, avoiding shaking of the internal battery during movement of the power supply, and improving safety.

[0012] Furthermore, the bottom plate and the cover plate are detachably connected, and the lower fixing plate is detachably mounted on the bottom plate by screws.

[0013] Furthermore, the bottom plate and the cover plate are respectively provided with a first connecting page and a second connecting page;

[0014] The first connecting page is fixed to the bottom plate, the second connecting page is fixed to the cover plate, and the first connecting page and the second connecting page are in contact with each other, and a reinforcing page is provided between the cover plate and the second connecting page;

[0015] Limiting grooves are formed on the sides of the first connecting page and the second connecting page.

[0016] Furthermore, heat dissipation holes are provided on the side of the cover plate, and a handle is provided on the cover plate.

[0017] Furthermore, two connection terminals for discharging and charging are provided on the cover plate, and the connection terminals are connected to the power protection board.

[0018] Furthermore, two indicator lights connected to the power protection board are provided on the cover plate, and the two indicator lights light up when the power supply device is discharging and charging, respectively.

[0019] Furthermore, the base plate and the cover plate are connected by screws, the cover plate is provided with connecting ears, and the connecting ears are provided with screw holes.

[0020] Furthermore, a balancing resistor is provided in the housing, the balancing resistor is installed in the housing through a resistor heat sink, and the balancing resistor is connected to the power protection board.

[0021] Furthermore, the power protection board is installed inside the housing through a power heat sink, and the power protection board is connected to the battery assembly;

[0022] Power heat dissipation plates are provided on both sides of the power protection plate. The power heat dissipation plates are spaced apart from the power protection plate, and the power heat dissipation plates are connected to the power protection plate via pads.

[0023] The utility model also discloses a wind power generator set. In the utility model, the wind power generator set comprises a generator set body and the above-mentioned power supply device. The generator set body and the power supply device are detachably connected.

[0024] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a structural diagram of a power supply device in one embodiment of the present invention;

[0027] Figure 2 This is a top schematic diagram of a power supply device in one embodiment of the present invention;

[0028] Figure 3 This is a side schematic diagram of a power supply device in one embodiment of the present invention;

[0029] Figure 4 This is a perspective structural diagram of a power supply device in one embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of a cover plate in one embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the installation of a battery assembly in one embodiment of the present invention;

[0032] Figure 7 This is a schematic structural diagram of a battery fixing bracket in one embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Base plate; 2. Cover plate; 3. Battery assembly; 4. Battery holder; 41. Upper fixing plate; 42. Lower fixing plate; 43. Connecting frame; 44. Card slot; 5. Power protection board; 6. First connecting page; 7. Second connecting page; 8. Reinforcement page; 9. Limiting slot; 10. Heat dissipation hole; 11. Handle; 12. Terminal block; 13. Indicator light; 14. First connecting ear; 15. Second connecting ear; 16. Equalizing resistor; 17. Resistor heat sink; 18. Power heat sink. DETAILED DESCRIPTION

[0035] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0036] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices; "fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connection, welding or bonding.

[0038] In the existing technology, with the development of wind power technology, backup power supplies are more important in the pitch control of wind turbines and are used in many scenarios. The backup power supplies currently used for wind turbines require frequent transportation and movement during use, and the battery cells are prone to shaking inside. The battery cells are easily damaged by collisions with each other, affecting the supply of electricity. In addition, the installation and disassembly of existing backup power supplies are relatively inconvenient.

[0039] The utility model provides a power supply device, which in this embodiment is used as a backup power supply for a wind turbine generator set. A slot for embedding and installing the power supply device is provided on the wind turbine generator set, and the power supply device is detachably connected to the wind turbine generator set. Figure 1 、 Figure 2 and Figure 3 As shown, the power supply device includes a shell, a battery assembly 3, a battery fixing frame 4 and a power protection board 5; the battery fixing frame 4 and the power protection board 5 are arranged inside the shell, and the shell serves as a protective shell to wrap the battery fixing frame 4, the battery assembly 3 and the power protection board for protection. The battery assembly 3 is installed in the shell through the battery fixing frame 4, and the battery fixing frame 4 acts as a fixed and protective battery assembly 3 in the shell.

[0040] In order to ensure the stability of the battery assembly 3 in the power supply device, avoid the battery assembly 3 from shaking and causing damage, and improve safety; Figure 6 and Figure 7 As shown, the battery fixing frame 4 is provided with an upper fixing plate 41, a lower fixing plate 41 and a connecting frame 43; the lower fixing plate 42 is installed on the housing, the upper fixing plate 41 is located at the upper end of the lower fixing plate 42, and the upper fixing plate is connected to the lower fixing plate 42 through the connecting frame 43, and two connecting frames 43 are provided, which are connected to the lower fixing plate 42 from both ends of the upper fixing plate 41, and the connecting frame 43 is connected to the upper fixing plate 41 and the lower fixing plate 42 by screws. A position is reserved between the upper fixing plate 41 and the lower fixing plate 42, and the battery assembly 3 is installed between the upper fixing plate 41 and the lower fixing plate 42. 1 abuts against the upper end of the housing to ensure the stability of the battery holder 4 in the housing, and the lower fixing plate 42 is fixed to the housing by welding or screw connection; a card slot 44 is provided on the side of the upper fixing plate 41 and the lower fixing plate 42 facing the battery assembly 3, that is, a card slot 44 is provided at the lower end of the upper fixing plate 41 and the upper end of the lower fixing plate 42. The battery assembly 3 includes multiple battery cells, and a plurality of card slots 44 are provided for the upper and lower ends of the multiple battery cells to be inserted into the upper fixing plate 41 and the lower fixing plate 42, so that each battery cell is individually clamped and fixed to the battery holder 4 to ensure the stable installation of each battery cell.

[0041] The utility model fixes the battery assembly 3 by providing a battery fixing frame 4, fixes the battery assembly 3 from the upper and lower ends through the upper fixing plate 41 and the lower fixing plate 42, fixes the side of the battery assembly 3 through the connecting frames 43 on both sides, and at the same time cooperates with the card slots 44 on the upper fixing plate 41 and the lower fixing plate 42 to fix each battery cell in the battery assembly 3 individually, thereby preventing the battery assembly 3 from shaking in the shell and the relative movement between the battery cells, ensuring the stability of battery charging and discharging, preventing the internal battery from shaking during the movement of the power supply, and improving safety.

[0042] In order to facilitate the overall internal assembly of the power supply device, the housing is set to be split, specifically the housing is set to be a bottom plate 1 and a cover plate 2, and the bottom plate 1 and the cover plate 2 are connected by screws, such as Figure 4 and Figure 5 As shown, the lower fixing plate 42 is installed on the bottom plate 1; and one side of the bottom plate 1 is bent upward by 90 degrees to form a side protection plate of the shell, and the three sides of the cover plate 2 are bent downward by 90 degrees to form another three side protection plates to form the side protection surface of the shell. The side protection plates are formed by bending to ensure the integrity between the side protection plates, the cover plate 2 and the bottom plate 1, thereby improving the overall strength of the shell; in addition, as shown in FIG. Figure 5As shown, the specific connection method between the base plate 1 and the cover plate 2 is as follows: a first connecting ear 14 and a second connecting ear 15 are provided on the cover plate 2, the first connecting ear 14 is connected to the bent portion of the base plate 1, and the second connecting ear 15 is provided at the bottom of the bent portion on the cover plate 2 and connected to the base plate 1, the first connecting ear 14 and the second connecting ear 15 are both integrally formed with the cover plate 2 and formed by bending the cover plate 2, screw holes are provided on the first connecting ear 14, the second connecting ear 15 and the base plate 1, and the screws pass through the first connecting ear 14 or the second connecting ear 15 to the screw holes on the base plate 1 for fixing, thereby realizing the connection between the base plate 1 and the cover plate 2.

[0043] In order to make the power supply equipment easy to install and disassemble on the wind turbine generator set, a connecting mechanism connected to the wind turbine generator set is provided on the base plate 1 and the cover plate 2, and the connecting mechanism includes a first connecting page 6 and a second connecting page 7, wherein the first connecting page 6 is fixed on the base plate 1, and the second connecting page 7 is fixed on the cover plate 2, and the first connecting page 6 and the second connecting page 7 are both formed by bending the bending parts of the base plate 1 and the cover plate 2, and the first connecting page 6 and the second connecting page 7 are in contact with each other, and a reinforcing page 8 is provided between the cover plate 2 and the second connecting page 7, and the reinforcing page 8 is connected to the second connecting page 7 and the change to strengthen the structural strength and avoid The second connecting page 7 is deformed under force; limiting grooves 9 are provided on the sides of the first connecting page 6 and the second connecting page 7, corresponding to the limiting part provided in the slot body of the generator set. During installation, the limiting groove 9 of the connecting part on one side of the shell is inserted into the limiting part of the generator set, and the limiting groove 9 at the other end is tightened by screws; during installation, it is not necessary to fix it according to the size of the slot body of the generator set, and only one set of screws is needed for installation and disassembly, and the other side can be inserted and tightened, which is relatively convenient for installation and disassembly; in other embodiments, in order to be suitable for use in multiple scenarios, it is not restricted by the limiting part in the slot body and can be fixed with screws at both ends.

[0044] In order to ensure effective heat dissipation inside the shell and avoid excessive internal temperature, a plurality of heat dissipation holes 10 are opened on the side of the cover plate 2, and the heat dissipation holes 10 are opened on the bent part of the cover plate 2; and a handle 11 is provided on the cover plate 2 to facilitate the staff to carry the portable power supply and facilitate the transportation and movement of the backup power supply.

[0045] In order to ensure the stability of the installation of the power protection board 5 and to ensure the effective heat dissipation of the power protection board 5, the power protection board 5 is installed inside the shell through the power heat sink 18, and the power protection board 5 is connected to the battery assembly 3; in order to enable both sides of the power protection board 5 to effectively dissipate heat, power heat sinks 18 are provided on both sides of the power protection board 5, and the power heat sink 18 and the power protection board 5 are spaced apart to ensure sufficient heat dissipation space. In this embodiment, two power protection boards 5 are provided, which are respectively installed on the base plate 1 and the cover plate 2, and the power heat sink 18 and the power protection board 5 are connected and fixed by pads. The material of the pads is the same as that of the power heat sink 18 to ensure that the heat of the power protection board 5 can be transferred to the power heat sink 18 for heat dissipation.

[0046] In order to display the charging and discharging of the power supply equipment and remind the staff of the working status of the power supply equipment; two terminal blocks 12 for discharging and charging are provided on the cover plate 2, and the terminal blocks 12 are connected to the power protection board 5, one is set to be a 5P terminal block 12, and the other is set to be an 8P terminal block 12; and two indicator lights 13 connected to the power protection board 5 are provided on the cover plate 2, and the two indicator lights 13 light up when the power supply equipment is discharging and charging, respectively, and the colors of the two indicator lights 13 are different, so that the discharge and charging status of the power supply equipment can be distinguished.

[0047] Equalizing resistors 16 are provided in the housing. In this embodiment, two groups are provided, which are respectively mounted on the base plate 1 and the cover plate 2. To ensure heat dissipation of the balancing resistors 16, the balancing resistors 16 are installed in the housing through a resistor heat sink 17. The balancing resistors 16 are connected to the power protection board 5. The equalizing resistors are respectively connected to the battery cells and the power protection board 5 to form a closed loop. The balancing resistors 16 can change the resistance value and thus change the size of the balancing current.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A power supply device, characterized in that: It comprises a housing, a battery assembly (3), a battery fixing frame (4) and a power protection board (5); The battery fixing frame (4) and the power supply protection board (5) are both arranged inside the shell, and the battery assembly (3) is installed inside the shell via the battery fixing frame (4); The housing comprises a bottom plate (1) and a cover plate (2), wherein the bottom plate (1) and the cover plate (2) are connected to each other; The battery fixing frame (4) comprises an upper fixing plate (41), a lower fixing plate (42) and a connecting frame (43); the lower fixing plate (42) is mounted on the base plate (1); the upper fixing plate (41) is located on a side of the lower fixing plate (42) away from the base plate (1), and the upper fixing plate (41) is connected to the lower fixing plate (42) via the connecting frame (43); the battery assembly (3) is arranged between the upper fixing plate (41) and the lower fixing plate (42), and the upper fixing plate (41) abuts against the cover plate (2); The upper fixing plate (41) and the lower fixing plate (42) are both provided with a card slot (44) on one side facing the battery assembly (3); the battery cells in the battery assembly (3) are connected and fixed to the upper fixing plate (41) and the lower fixing plate (42) via the card slot (44).

2. The power supply device according to claim 1, wherein: The base plate (1) and the cover plate (2) are detachably connected, and the lower fixing plate (42) is detachably mounted on the base plate (1) by means of screws.

3. The power supply device according to claim 2, wherein: A first connecting page (6) and a second connecting page (7) are respectively provided on the bottom plate (1) and the cover plate (2); The first connecting page (6) is fixed on the base plate (1), the second connecting page (7) is fixed on the cover plate (2), and the first connecting page (6) and the second connecting page (7) are in abutment with each other, and a reinforcing page (8) is provided between the cover plate (2) and the second connecting page (7); Limiting grooves (9) are provided on both the first connecting page (6) and the second connecting page (7).

4. The power supply device according to any one of claims 1 to 3, characterized in that: A heat dissipation hole (10) is provided on the side of the cover plate (2), and a handle (11) is provided on the cover plate (2).

5. The power supply device according to any one of claims 1 to 3, characterized in that: The cover plate (2) is provided with two connection terminals (12) for discharging and charging, and the connection terminals (12) are connected to the power protection board (5).

6. The power supply device according to any one of claims 1 to 3, characterized in that: The cover plate (2) is provided with two indicator lights (13) connected to the power protection board (5), and the two indicator lights (13) light up when the power supply device is discharging and charging, respectively.

7. The power supply device according to any one of claims 1 to 3, characterized in that: The base plate (1) and the cover plate (2) are connected via screws; the cover plate (2) is provided with a connecting ear, and the connecting ear is provided with a screw hole.

8. The power supply device according to any one of claims 1 to 3, characterized in that: A balancing resistor (16) is provided in the housing. The balancing resistor (16) is installed in the housing via a resistor heat sink (17). The balancing resistor (16) is connected to the power protection board (5).

9. The power supply device according to any one of claims 1 to 3, characterized in that: The power protection board (5) is installed inside the housing via a power heat sink (18), and the power protection board (5) is connected to the battery assembly (3); Power heat sinks (18) are provided on both sides of the power protection board (5), the power heat sinks (18) and the power protection board (5) are spaced apart, and the power heat sinks (18) and the power protection board (5) are connected via pads.

10. A wind turbine generator set, characterized in that: It comprises a generator set body and a power supply device according to any one of claims 1 to 9, wherein the generator set body is detachably connected to the power supply device.

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