Energy storage tank variable control power automatic transfer device

Abstract

The utility model belongs to power conversion device technical field, concretely relates to energy storage box variable control power automatic conversion device, including low -voltage cabinet shell, the inside fixed coupling of low -voltage cabinet shell has first net board, the upper end fixed mounting of first net board has UPS power supply, the inside fixed coupling of low -voltage cabinet shell has second net board, the upper end fixed mounting of second net board has AC contactor, the upper end fixed mounting of second net board has protection circuit breaker, the upper end fixed mounting of second net board has microcomputer protection device. The utility model discloses through design UPS power supply, AC contactor, protection circuit breaker, microcomputer protection device, storage battery and signal indicating lamp etc. component, can reach to energy storage box variable control loop without power failure, prevent microcomputer protection device and lack the protection function of main transformer because of power failure to make the safe and reliable device.

Description

Technical Field

[0001] This utility model relates to the technical field of power conversion devices, specifically an automatic power conversion device for energy storage transformer control. Background Technology

[0002] A power conversion device is a device that converts input power into different output voltages, currents, or waveforms. It is typically used to convert alternating current to direct current, reduce or increase voltage to meet the needs of different electronic devices, or perform power conversion between different power systems. For example, utility model patent CN218678539U discloses a safe switching device for dual-circuit power supply in a transformer substation. This device includes an emergency power socket cabinet and a main circuit cabinet. The main circuit switch's opening and closing circuit is located within the main circuit cabinet, and the emergency power socket's auxiliary contact is located within the emergency power socket cabinet. Both the emergency power socket cabinet and the main circuit cabinet have doors, each equipped with a program lock to maintain mechanical interlocking. The emergency power socket's auxiliary contact contains a limit switch, which is electrically interlocked with the main circuit switch's opening and closing circuit. A safety gap d exists between the main circuit copper busbar and the outgoing load main busbar. A detachable isolation copper busbar is provided between the main circuit copper busbar and the outgoing load main busbar. This device, based on multiple protection mechanisms including mechanical interlocking, electrical interlocking, and the isolation copper busbar, achieves safe switching between the main circuit switch and the emergency power circuit, ensuring the personal safety of emergency power supply operators. However, in existing technology, when the storage battery needs to be installed on the device, external tools are required to turn the bolts on the device, making battery installation inconvenient. Furthermore, the device lacks a heat dissipation mechanism, hindering the cooling of internal components and potentially reducing their lifespan. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic power conversion device for energy storage transformer control. It solves the problems that when the storage battery on the device needs to be installed, external tools are needed to rotate the bolts on the device, which makes it inconvenient to install the storage battery on the device. In addition, the device lacks a heat dissipation mechanism, making it difficult for the internal components of the cabinet to dissipate heat, which easily reduces the service life of the internal components.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic power conversion device for energy storage transformer control, comprising a low-voltage cabinet housing, a first grid plate fixedly connected inside the low-voltage cabinet housing, a UPS power supply fixedly installed on the upper end of the first grid plate, a second grid plate fixedly connected inside the low-voltage cabinet housing, an AC contactor fixedly installed on the upper end of the second grid plate, a protective circuit breaker fixedly installed on the upper end of the second grid plate, a microprocessor protection device fixedly installed on the upper end of the second grid plate, a storage battery in contact with the back of the low-voltage cabinet housing, a fixing plate fixedly connected to the outside of the storage battery, the fixing plate in contact with the low-voltage cabinet housing, a connecting plate fixedly connected to the back of the low-voltage cabinet housing, the connecting plate in contact with the storage battery, the fixing plate in contact with the connecting plate, a limit mechanism provided on the upper end of the connecting plate, a heat dissipation mechanism provided inside the low-voltage cabinet housing, and a signal indicator light provided on the front of the low-voltage cabinet housing.

[0005] Preferably, the limiting mechanism includes a slot, the fixed plate has a slot inside, a slide rod is slidably connected inside the slot, a connecting seat is fixedly connected to the upper end of the connecting plate, a tension spring is provided inside the connecting seat, a sliding groove is formed inside the connecting seat, a guide rod is slidably connected inside the sliding groove, a moving plate is fixedly connected to the guide rod, the moving plate is in contact with the outer side of the connecting seat, the connecting seat is in contact with the outer side of the fixed plate, and the connecting seat is slidably connected to the slide rod. By pulling the slide rod, after the slide rod moves to a designated position, the fixed plate, the slot, and the battery are moved to a designated position on the connecting plate, and then the slide rod is moved into the slot, thereby limiting the battery and other components, making it easier to install the battery on the device.

[0006] Preferably, a movable plate is fixedly connected to the end of the slide rod away from the slot, and a pull ring is fixedly connected to the side of the movable plate away from the slide rod. By designing the pull ring, the slide rod can be moved.

[0007] Preferably, one end of the tension spring is fixedly connected to the movable plate, and the other end of the tension spring is fixedly connected to the connecting seat. By designing the tension spring, the movable plate has a tensile force.

[0008] Preferably, the heat dissipation mechanism includes a fan. The fan is fixedly installed inside the low-voltage cabinet housing. A connecting sleeve is fixedly connected to the lower end of the low-voltage cabinet housing. A first filter screen is fixedly connected inside the connecting sleeve. The first filter screen is rotatably connected to a rotating block. An impeller is fixedly connected to the rotating block. A scraper is fixedly connected to the lower end of the rotating block, and the scraper contacts the first filter screen. A second filter screen is fixedly connected inside the low-voltage cabinet housing. By starting the fan, the fan rotates to blow air and dissipate heat inside the low-voltage cabinet housing. The first and second filters filter external dust, thereby dissipating heat from the components inside the low-voltage cabinet housing and preventing a reduction in the service life of the components. The suction force generated by the fan rotation drives the impeller to rotate, which in turn drives the scraper to rotate and scrape the first filter screen, thereby cleaning the first filter screen and preventing a reduction in its working efficiency.

[0009] Preferably, a bearing is fixedly sleeved inside the first filter screen, and a rotating block is fixedly sleeved inside the inner ring of the bearing. By designing the bearing, the rotating block can be supported to rotate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model designs components such as a slot, slide bar, moving plate, pull ring, connecting seat, and tension spring. Pulling the slide bar moves it to a designated position. After the slide bar moves to a designated position, the moving fixing plate, slot, and storage battery move to a designated position on the connecting plate. Then, the slide bar moves into the slot, thereby limiting the storage battery and other components, making it easier to install the storage battery on the device.

[0012] 2. This utility model incorporates components such as a fan, connecting sleeve, first filter screen, bearing, rotating block, and impeller. When the fan is activated, it blows air to cool the interior of the low-voltage cabinet. The first and second filters filter external dust, thereby allowing the components inside the low-voltage cabinet to dissipate heat and preventing a reduction in their lifespan. The suction generated by the fan drives the impeller to rotate, which in turn drives a scraper to clean the first filter screen, preventing a decrease in its working efficiency.

[0013] 3. By designing components such as a UPS power supply, AC contactor, protective circuit breaker, microcomputer protection device, storage battery, and signal indicator light, this utility model can ensure uninterrupted power supply to the control circuit of the energy storage transformer, prevent the microcomputer protection device from losing its protection function for the main transformer due to power failure, and make the device safe and reliable. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Partial sectional perspective view of the structure;

[0016] Figure 3 This utility model Figure 1 A front sectional view;

[0017] Figure 4 This utility model Figure 2 Enlarged view of point A;

[0018] Figure 5 This utility model Figure 3 Enlarged view of the fan.

[0019] In the diagram: 1. Low-voltage cabinet housing; 2. First mesh plate; 3. UPS power supply; 4. Second mesh plate; 5. AC contactor; 6. Protective circuit breaker; 7. Microcomputer protection device; 8. Storage battery; 9. Fixing plate; 10. Connecting plate; 11. Limiting mechanism; 111. Slot; 112. Slide rod; 113. Moving plate; 114. Pull ring; 115. Connecting seat; 116. Tension spring; 117. Sliding groove; 118. Guide rod; 12. Heat dissipation mechanism; 121. Fan; 122. Connecting sleeve; 123. First filter screen; 124. Bearing; 125. Rotating block; 126. Impeller; 127. Scraper; 128. Second filter screen; 13. Signal indicator light. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-5The energy storage transformer control power automatic conversion device includes a low-voltage cabinet housing 1. A first grid plate 2 is fixedly connected inside the low-voltage cabinet housing 1. A UPS power supply 3 is fixedly installed on the upper end of the first grid plate 2. A second grid plate 4 is fixedly connected inside the low-voltage cabinet housing 1. An AC contactor 5 is fixedly installed on the upper end of the second grid plate 4. A protective circuit breaker 6 is fixedly installed on the upper end of the second grid plate 4. A microcomputer protection device 7 is fixedly installed on the upper end of the second grid plate 4. A storage battery 8 is in contact with the back of the low-voltage cabinet housing 1. A fixing plate 9 is fixedly connected to the outside of the storage battery 8 and is in contact with the low-voltage cabinet housing 1. A connecting plate 10 is fixedly connected to the back of the low-voltage cabinet housing 1 and is in contact with the storage battery 8. The fixing plate 9 is in contact with the connecting plate 10. A limit mechanism 11 is provided at the upper end of the connecting plate 10. A heat dissipation mechanism 12 is provided inside the low-voltage cabinet housing 1. An indicator light 13 is provided on the front of the low-voltage cabinet housing 1.

[0022] Please see Figure 4 The limiting mechanism 11 includes a slot 111. The slot 111 is formed inside the fixed plate 9. A slide rod 112 is slidably connected inside the slot 111. A movable plate 113 is fixedly connected to the end of the slide rod 112 away from the slot 111. A pull ring 114 is fixedly connected to the side of the movable plate 113 away from the slide rod 112. The pull ring 114 allows the slide rod 112 to move. A connecting seat 115 is fixedly connected to the upper end of the connecting plate 10. A tension spring 116 is provided inside the connecting seat 115. One end of the tension spring 116 is fixedly connected to the movable plate 113, and the other end is fixedly connected to the connecting seat 115. The tension spring 116 enables the movable plate 113 to... The connecting seat 115 has a sliding groove 117 inside, and a guide rod 118 is slidably connected inside the sliding groove 117. A movable plate 113 is fixedly connected to the guide rod 118. The movable plate 113 contacts the outer side of the connecting seat 115, and the connecting seat 115 contacts the outer side of the fixed plate 9. The connecting seat 115 is slidably connected to the slide rod 112. By pulling the slide rod 112, after the slide rod 112 moves to the designated position, the fixed plate 9, the slot 111, and the storage battery 8 are moved to the designated position on the connecting plate 10. Then, the slide rod 112 is moved into the slot 111, thereby limiting the storage battery 8 and other components, making it easier to install the storage battery 8 on the device.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5The heat dissipation mechanism 12 includes a fan 121. The fan 121 is fixedly installed inside the low-voltage cabinet housing 1. A connecting sleeve 122 is fixedly connected to the lower end of the low-voltage cabinet housing 1. A first filter screen 123 is fixedly connected inside the connecting sleeve 122. A bearing 124 is fixedly sleeved inside the first filter screen 123. A rotating block 125 is fixedly sleeved inside the inner ring of the bearing 124. By designing the bearing 124, the rotating block 125 can be supported to rotate. The first filter screen 123 is rotatably connected to the rotating block 125. An impeller 126 is fixedly connected to the rotating block 125. A scraper 127 is fixedly connected to the lower end of the rotating block 125. The scraper 127 is connected to the first filter screen 123. The first filter 123 contacts the second filter 128, which is fixedly connected inside the low-voltage cabinet housing 1. When the fan 121 is turned on, it blows air to cool the inside of the low-voltage cabinet housing 1. The first filter 123 and the second filter 128 filter external dust, thereby cooling the components inside the low-voltage cabinet housing 1 and preventing a reduction in the service life of the components. The suction force generated by the fan 121 can drive the impeller 126 to rotate. The rotation of the impeller 126 drives the scraper 127 to rotate and scrape the first filter 123, thereby cleaning the first filter 123 and preventing a reduction in the working efficiency of the first filter 123.

[0024] The specific implementation process of this utility model is as follows: Before the device is used, pull the pull ring 114 to move away from the moving plate 113. The movement of the pull ring 114 drives the moving plate 113 to move. The movement of the moving plate 113 drives the slide rod 112 and the guide rod 118 to move. The movement of the moving plate 113 stretches the tension spring 116. After the slide rod 112 moves to the designated position, the moving fixing plate 9, the slot 111 and the storage battery 8 move to the designated position on the connecting plate 10. Then, release the pull ring 114. The tension of the tension spring 116 pulls the moving plate 113 to move. The movement of the moving plate 113 drives the slide rod 112 and other components to move. The slide rod 112 moves into the slot 111, thereby limiting the storage battery 8 and other components, making it easier to install the storage battery 8 on the device.

[0025] When the internal components of the device need heat dissipation, the fan 121 is activated. The fan 121 rotates and blows air into the low-voltage cabinet housing 1. The first filter screen 123 and the second filter screen 128 filter external dust, thereby preventing dust from entering the low-voltage cabinet housing 1. This allows the internal components of the low-voltage cabinet housing 1 to dissipate heat and prevents the lifespan of the internal components from being reduced. The suction force generated by the fan 121 during rotation drives the impeller 126 to rotate. The rotation of the impeller 126 drives the rotating block 125 to rotate. The rotation of the rotating block 125 drives the scraper 127 to rotate. The rotating scraper 127 scrapes the first filter screen 123, thereby cleaning the first filter screen 123 and preventing the working efficiency of the first filter screen 123 from being reduced.

[0026] Under normal circumstances, its control circuit is powered by 220V AC from UPS power supply 3. When the battery 8 in UPS power supply 3 reaches the end of its service life, or when the circuit breaker fails during operation, preventing the battery 8 from being charged and UPS power supply 3 from providing continuous power, AC contactor 5 can be used to switch between UPS power supply 3 and backup power supply, meeting the continuous monitoring and protection requirements of control and microcomputer protection device 7. UPS power supply 3 is installed inside the low-voltage cabinet housing 1, and four batteries 8 are installed at the rear top of the low-voltage cabinet housing 1 in series connection. The input and output terminals of UPS power supply 3 are protected by circuit breakers. The UPS power supply 3 output is switched to the backup power supply via the opening and closing of the AC contactor 5. This is to meet the requirements of remote control, telemetry, remote signaling, and fault inquiry functions in the field and central control room. The power supply adopts the mutual conversion function between UPS power supply 3 and backup conventional power supply. UPS power supply 3 and various protection and measurement and control components are installed in the low-voltage cabinet housing 1. When UPS power supply 3 or protection circuit breaker 6 fails or the storage battery 8 reaches the end of its service life, the control and protection of the energy storage transformer are not interrupted. This realizes the automatic conversion between UPS and backup dual power supply and the continuous recording and control of relevant parameters and functions, making the device safe and reliable.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic power conversion device for energy storage transformer control, comprising a low-voltage cabinet housing (1), characterized in that: The low-voltage cabinet housing (1) is internally fixedly connected to a first grid plate (2), and a UPS power supply (3) is fixedly installed on the upper end of the first grid plate (2). The low-voltage cabinet housing (1) is internally fixedly connected to a second grid plate (4), and an AC contactor (5) is fixedly installed on the upper end of the second grid plate (4). A protective circuit breaker (6) is fixedly installed on the upper end of the second grid plate (4), and a microcomputer protection device (7) is fixedly installed on the upper end of the second grid plate (4). A storage battery (8) is in contact with the back of the low-voltage cabinet housing (1). A fixing plate (9) is fixedly connected to the outside of the storage battery (8). The fixing plate (9) is in contact with the low-voltage cabinet housing (1). A connecting plate (10) is fixedly connected to the back of the low-voltage cabinet housing (1). The connecting plate (10) is in contact with the storage battery (8). The fixing plate (9) is in contact with the connecting plate (10). A limit mechanism (11) is provided at the upper end of the connecting plate (10). A heat dissipation mechanism (12) is provided inside the low-voltage cabinet housing (1). An indicator light (13) is provided on the front of the low-voltage cabinet housing (1).

2. The automatic power conversion device for energy storage transformer control according to claim 1, characterized in that: The limiting mechanism (11) includes a slot (111). The slot (111) is provided inside the fixing plate (9). A slide rod (112) is slidably connected inside the slot (111). A connecting seat (115) is fixedly connected to the upper end of the connecting plate (10). A tension spring (116) is provided inside the connecting seat (115). A sliding groove (117) is provided inside the connecting seat (115). A guide rod (118) is slidably connected inside the sliding groove (117). A moving plate (113) is fixedly connected to the guide rod (118). The moving plate (113) is in contact with the outside of the connecting seat (115). The connecting seat (115) is in contact with the outside of the fixing plate (9). The connecting seat (115) is slidably connected to the slide rod (112).

3. The automatic power conversion device for energy storage transformer control according to claim 2, characterized in that: A movable plate (113) is fixedly connected to one end of the slide rod (112) away from the slot (111), and a pull ring (114) is fixedly connected to the side of the movable plate (113) away from the slide rod (112).

4. The automatic power switching device for energy storage transformer control according to claim 2, characterized in that: One end of the tension spring (116) is fixedly connected to the movable plate (113), and the other end of the tension spring (116) is fixedly connected to the connecting seat (115).

5. The automatic power conversion device for energy storage transformer control according to claim 1, characterized in that: The heat dissipation mechanism (12) includes a fan (121). The fan (121) is fixedly installed inside the low-voltage cabinet housing (1). A connecting sleeve (122) is fixedly connected to the lower end of the low-voltage cabinet housing (1). A first filter screen (123) is fixedly connected inside the connecting sleeve (122). The first filter screen (123) is rotatably connected to a rotating block (125). An impeller (126) is fixedly connected to the rotating block (125). A scraper (127) is fixedly connected to the lower end of the rotating block (125). The scraper (127) contacts the first filter screen (123). A second filter screen (128) is fixedly connected inside the low-voltage cabinet housing (1).

6. The automatic power conversion device for energy storage transformer control according to claim 5, characterized in that: The first filter screen (123) is fitted with a bearing (124) inside, and a rotating block (125) is fitted with the inner ring of the bearing (124).

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