Portable direct current emergency power supply

Abstract

The utility model discloses a portable direct-current emergency power supply, which comprises a box body, a control panel, a cover body and a power supply circuit assembly, the power supply circuit assembly comprises a charging module, an energy storage module, a main control module and a direct current boosting module; the charging module is in wire connection with the energy storage module; the energy storage module and the direct-current boosting module are connected with the main control module through wires; a first configuration cavity and a second configuration cavity which are overlapped with each other are arranged in the box body, and the first configuration cavity is located at the bottom of the box body; the charging module and the energy storage module are installed in the first configuration cavity, the main control module and the direct current boosting module are located in the second configuration cavity, and the control panel covers the second configuration cavity; the cover body covers the control panel and is fixedly connected with the box body; a lifting handle is arranged above the cover body and movably connected with the cover body, a groove is formed in the upper surface of the cover body, and the lifting handle can be contained in the middle groove. The technical scheme of the utility model aims to solve the problem that some direct-current emergency power supplies are inconvenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of DC power supplies, and particularly relates to a portable DC emergency power supply. Background Art

[0002] With the continuous improvement of power facilities in China, most substations and important distribution substations are equipped with switch cabinets. Generally, the protection, control, and signal circuits of the switch cabinets are usually powered by the DC system of the substation building. However, most DC system devices generally have quality problems, such as individual batteries being damaged and spitting acid, resulting in insufficient output voltage and the inability of the DC system to operate normally when the whole station loses power. On the other hand, high-voltage switch cabinets have a five-prevention interlocking function, and among them, the interlocks powered by the DC system include the grounding knife interlock electromagnet and the circuit breaker closing interlock electromagnet. When the DC system cannot supply power normally, the grounding knife interlock electromagnet and the circuit breaker closing interlock electromagnet cannot perform automatic switching. However, for this situation, the solution of on-site workers is to open the lower cabinet door, pull the interlock electromagnet, and perform manual switching. But this approach violates the regulations of the "Electric Power Safety Work Regulations" and has very great potential safety hazards.

[0003] Therefore, in view of the above problems, there is an urgent need to provide a DC emergency power supply for providing a backup power supply for the switch cabinet. However, the existing DC emergency power supplies for substations are generally large in volume and weight and are not convenient to carry and transport. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a portable DC emergency power supply, which solves the problem that the existing DC emergency power supplies in the background art are not convenient to carry and transport.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A portable DC emergency power supply includes a box body, a control panel, a cover body, and a power circuit component;

[0007] The power circuit component includes a charging module, an energy storage module, a main control module, and a DC boost module; the charging module is connected to the energy storage module in series; both the energy storage module and the DC boost module are connected to the main control module in series;

[0008] The box body has a first configuration cavity and a second configuration cavity which are stacked on each other, and the first configuration cavity is located at the bottom of the box body; the charging module and the energy storage module are installed in the first configuration cavity, the main control module and the DC boost module are located in the second configuration cavity, and the control panel covers the upper part of the second configuration cavity;

[0009] The cover body is covered above the control panel and fixedly connected to the box body; a handle is arranged above the cover body, the handle is movably connected to the cover body, a groove is formed on the upper surface of the cover body, and the handle can be received in the groove.

[0010] In one embodiment, the lower surface of the cover body has a concave structure, and a receiving cavity is formed between the cover body and the control panel.

[0011] In one embodiment, a first positive electrode interface, a second positive electrode interface and a first negative electrode interface are arranged on the control panel, and the first positive electrode interface, the second positive electrode interface and the first negative electrode interface are all connected to the DC boost module by wires; the first positive electrode interface and the second positive electrode interface share one first negative electrode interface.

[0012] In one embodiment, the power circuit assembly further includes an inverter control module, and the inverter control module is respectively connected to the energy storage module and the main control module by wires, and is used for converting direct current into alternating current;

[0013] An AC output interface is arranged on the control panel, and the AC output interface is connected to the inverter control module by wires.

[0014] In one embodiment, the power circuit assembly further includes a first switch and a second switch, and the first switch and the second switch are installed on the control panel; the first switch and the second switch are respectively connected to the main control module by wires, the first switch is used for switching the AC and DC outputs of the power supply; the second switch is used for switching the first positive electrode interface or the first positive electrode interface of the DC output to realize the power supply of the target interface.

[0015] In one embodiment, a display screen is further included, and the display screen is connected to the main control module by wires, and is used for displaying the electric energy parameters output by the portable DC emergency power supply in the working state.

[0016] In one embodiment, a first rib and a second rib are further arranged on the outer surface of the box body, and a buckle, a third rib and a fourth rib are arranged on the cover body; the third rib and the fourth rib are located on both sides of the buckle and are used for protecting the buckle. When the buckle is connected to the box body, the first rib and the second rib are also located on both sides of the buckle, which are used for protecting the buckle and improving the explosion-proof strength of the box body.

[0017] In one embodiment, a reinforcing bar is further arranged inside the box body, and the reinforcing bar is located at the bottom of the box body and extends to the side wall of the box body.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] In the technical solution of the utility model, a first configuration cavity and a second configuration cavity are arranged in the box body. The energy storage module with larger weight and volume is placed in the first configuration cavity, which reduces the occupation of the internal space of the box body and improves the stability of the internal configuration. The charging module is placed in the first configuration cavity, close to the energy storage module, which reduces the length of the internal wiring, that is, reduces the occupation of the internal space of the box body. The main control module and the DC boost module are located in the second configuration cavity, and the control panel covers the upper part of the second configuration cavity; this avoids redundant wiring in the internal space and provides sufficient heat dissipation space for modules such as the main control module and the DC boost module that are prone to heat generation during operation. Generally, to ensure that the box body has sufficient strength, the material of the box body is preferably ABS material. However, the heat dissipation performance of the ABS material is poor. Therefore, the main control module and the DC boost module are arranged below the control panel, and a certain degree of heat dissipation can also be achieved through the control panel. On the one hand, the inside of the box body is divided into a first configuration cavity and a second configuration cavity, and they are arranged in a stacked manner. This design makes full use of the internal space of the box body and makes the device structure compact. On the other hand, the modular setting of the above structure facilitates the maintenance and replacement of each module. At the same time, it is beneficial to the independence of each module, reduces the mutual interference between modules, and improves the maintainability and reliability of the portable DC emergency power supply.

[0020] Furthermore, the cover body covers the upper part of the control panel and is fixedly connected to the box body; the cover body can cover the upper part of the control panel, providing a certain degree of protection to avoid damage to the control panel by dust and other environmental factors. Further, a handle is arranged above the cover body. The handle is movably connected to the cover body, and a groove is formed on the upper surface of the cover body. The handle can be received in the groove. This design can hide the handle when not in use, avoiding occupying extra space. At the same time, the design of the handle facilitates the carrying of the device and enhances the portability of the portable DC emergency power supply. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the present utility model.

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

[0024] Figure 2 is Figure 1 a change state diagram of;

[0025] Figure 3 is Figure 1 a sectional view of;

[0026] Figure 4 is a schematic circuit diagram of an embodiment of the present utility model;

[0027] Illustration: 100, portable DC emergency power supply; 110, box body; 110a, first configuration cavity; 110b, second configuration cavity; 111, first rib; 112, second rib; 113, reinforcing strip; 120, control panel; 121, first positive interface; 122, second positive interface; 123, first negative interface; 124, AC output interface; 130, cover body; 130a, groove; 130b, receiving cavity; 131, handle; 132, buckle; 133, third rib; 134, fourth rib; 140, power circuit assembly; 141, charging module; 142, energy storage module; 143, main control module; 144, DC boost module; 145, inverter control module; 146, first switch; 147, second switch; 148, power switch; 149, third switch; 150, display screen. Detailed implementation manners

[0028] In order to make the technical objectives, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present at the same time.

[0030] The technical solution of the present utility model will be further described below in conjunction with the drawings and through specific embodiments.

[0031] An embodiment of the present utility model provides a portable DC emergency power supply 100.

[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In an embodiment of the present utility model, the portable DC emergency power supply 100 includes a box body 110, a control panel 120, a cover body 130, and a power circuit assembly 140;

[0033] The power circuit assembly 140 includes a charging module 141, an energy storage module 142, a main control module 143, and a DC boost module 144; the charging module 141 is connected to the energy storage module 142 by wire; both the energy storage module 142 and the DC boost module 144 are connected to the main control module 143 by wire;

[0034] The box body 110 has a first configuration cavity 110a and a second configuration cavity 110b that are stacked on top of each other. The first configuration cavity is located at the bottom of the box body 110; the charging module 141 and the energy storage module 142 are installed in the first configuration cavity, and the main control module 143 and the DC boost module 144 are located in the second configuration cavity 110b. The control panel 120 covers the upper part of the second configuration cavity 110b;

[0035] The cover body 130 covers the upper part of the control panel 120 and is fixedly connected to the box body 110; a handle 131 is provided on the upper part of the cover body 130. The handle 131 is movably connected to the cover body 130, and a groove 130a is formed on the upper surface of the cover body 130. The handle 131 can be received in the groove 130a.

[0036] It can be understood that in the technical solution of the present utility model, by configuring a first configuration cavity 110a and a second configuration cavity 110b in the box body 110, the energy storage module 142 with a larger weight and volume is placed in the first configuration cavity 110a, reducing the occupation of the internal space of the box body 110 and improving the stability of the internal configuration. The charging module 141 is placed in the first configuration cavity 110a, close to the energy storage module 142, reducing the length of the internal wiring, that is, reducing the occupation of the internal space of the box body 110. The main control module 143 and the DC boost module 144 are located in the second configuration cavity 110b, and the control panel 120 covers the upper part of the second configuration cavity 110b; this avoids redundant wiring in the internal space and provides sufficient heat dissipation space for modules such as the main control module 143 and the DC boost module 144 that are prone to heat generation during operation. Generally, to ensure that the box body 110 has sufficient strength, the material of the box body 110 is preferably ABS material. However, the heat dissipation performance of the ABS material is poor. Therefore, the main control module 143 and the DC boost module 144 are arranged below the control panel 120, and a certain degree of heat dissipation can also be achieved through the control panel 120. On the one hand, the internal part of the box body 110 is divided into a first configuration cavity 110a and a second configuration cavity 110b, and they are arranged in a stacked manner. This design makes full use of the internal space of the box body 110, making the device structure compact. On the other hand, the modular setting of the above structure facilitates the maintenance and replacement of each module. At the same time, it is beneficial to the independence of each module, reduces the mutual interference between modules, and improves the maintainability and reliability of the portable DC emergency power supply 100.

[0037] Furthermore, the cover body 130 covers the upper part of the control panel 120 and is fixedly connected to the box body 110; the cover body 130 can cover the upper part of the control panel 120, providing a certain degree of protection and avoiding damage to the control panel 120 caused by dust and other environmental factors. Further, a handle 131 is provided on the upper part of the cover body 130. The handle 131 is movably connected to the cover body 130, and a groove 130a is formed on the upper surface of the cover body 130. The handle 131 can be received in the groove 130a. This design can hide the handle 131 when not in use, avoiding occupying extra space. At the same time, the design of the handle 131 facilitates the carrying of the device and enhances the portability of the portable DC emergency power supply 100.

[0038] It should also be noted that a support structure is provided inside the box body 110. The support structure divides the internal space of the box body 110 into a first configuration cavity 110a and a second configuration cavity 110b, and the first configuration cavity 110a and the second configuration cavity 110b are connected.

[0039] It should also be noted that the above energy storage module 142 includes a rechargeable battery. Optionally, the type of the rechargeable battery is a lithium iron phosphate battery.

[0040] The charging module 141 is used to convert alternating current into direct current to charge the energy storage module 142. It can be understood that the portable DC power supply is built-in with the charging module 141, and only a general output cable needs to be configured to charge the energy storage module 142, without the need to carry an additional power adapter to charge the portable DC power supply, further improving the portability of the portable DC power supply.

[0041] The main control module 143 is used to control the discharge type and discharge parameters of the energy storage module 142.

[0042] Please refer to Figure 2 and Figure 3 In a specific embodiment of the present invention, in order to further improve the portability of the portable DC emergency power supply 100, the lower surface of the cover body 130 has a concave structure, and a receiving cavity 130b is formed between the cover body 130 and the control panel 120. Specifically, the receiving cavity 130b can be used to receive the AC input cable configured for charging the portable DC emergency power supply 100; it can also be used to receive other common configurations such as the DC output cable configured for the normal operation of the portable DC emergency power supply 100.

[0043] Please continue to refer to Figure 2 In an embodiment of the present invention, a first positive electrode interface 121, a second positive electrode interface 122, and a first negative electrode interface 123 are provided on the control panel 120. The first positive electrode interface 121, the second positive electrode interface 122, and the first negative electrode interface 123 are all connected to the DC boost module 144 by wire; the first positive electrode interface 121 and the second positive electrode interface 122 share a first negative electrode interface 123.

[0044] Specifically, when the first positive electrode interface 121 and the first negative electrode interface 123 are connected to a load, a closed loop is formed between the first positive electrode interface 121 and the first negative electrode interface 123 to form normal power supply; when the second positive electrode interface 122 and the first negative electrode interface 123 are connected to a load, a closed loop is formed between the second positive electrode interface 122 and the first negative electrode interface 123 to form normal power supply. It can be understood that the first positive electrode interface 121 and the second positive electrode interface 122 sharing a first negative electrode interface 123 reduces the interface settings on the control panel 120, simplifies the layout of the control panel 120, and improves the operability of the portable DC emergency power supply 100.

[0045] Optionally, the first positive electrode interface 121 is used to output 24V of direct current, and the second positive electrode interface 122 can output 48V of direct current; the first positive electrode interface 121 and the second positive electrode interface 122 share the same first negative electrode interface 123.

[0046] Optionally, the first positive electrode interface 121 is used to output direct current of 110V, and the second positive electrode interface 122 can output direct current of 220V; the first positive electrode interface 121 and the second positive electrode interface 122 share the same first negative electrode interface 123.

[0047] Please refer to Figure 2 and Figure 4 , in another embodiment of the present invention, the power supply circuit assembly 140 further includes an inverter control module 145. The inverter control module 145 is respectively connected to the energy storage module 142 and the main control module 143 in a wired manner, and is used to convert direct current into alternating current; an alternating current output interface 124 is arranged on the control panel 120, and the alternating current output interface 124 is connected to the inverter control module 145 in a wired manner.

[0048] It can be understood that the portable DC emergency power supply 100 is configured with an alternating current output interface 124. Optionally, the alternating current output interface 124 can output alternating current of 220V and 50Hz when the portable DC emergency power supply 100 is not connected to a power supply, so as to meet the emergency power consumption requirements of electronic devices such as instruments and meters. The function of the portable DC emergency power supply 100 is expanded.

[0049] Please refer to Figure 2 and Figure 4 , in another specific embodiment of the present invention, the power supply circuit assembly 140 further includes a first switching switch 146 and a second switching switch 147. The first switching switch 146 and the second switching switch 147 are installed on the control panel 120; the first switching switch 146 and the second switching switch 147 are respectively connected to the main control module 143 in a wired manner. The first switching switch 146 is used to switch the AC and DC outputs of the power supply; the second switching switch 147 is used to switch between the first positive electrode interface 121 or the first positive electrode interface 121 of the DC output to realize the power supply of the target interface.

[0050] It can be understood that the first switching switch 146 can be regarded as a primary switch, and the second switching switch 147 can be regarded as a secondary switch. When current is output, setting multiple levels of confirmation of the switching switch improves the safety performance of the operation to prevent the operator from misjudging low-voltage direct current and high-voltage direct current, avoiding electric shock to the operator or damaging the equipment due to voltage mismatch.

[0051] Furthermore, the power supply circuit assembly 140 further includes a power switch 148. The power switch 148 is connected to the main control module 143 in a wired manner, and the power switch 148 is used to start the power supply so that the portable DC power supply is in a working state.

[0052] Further, the power supply circuit assembly 140 further includes a third switching switch 149. The third switching switch 149 is connected to the main control module 143 in a wired manner. The first switching switch 146 is used to switch the AC and DC outputs of the power supply. When the first switching switch 146 switches to the AC output type, the third switching switch 149 is used to confirm the activation of the AC output for the second time to ensure the safety of the operator and the electrical safety of the device.

[0053] Optionally, to avoid frequent restarting of the power switch 148, the first switching switch 146 has four working states, and the corresponding working states are DC output, AC output, simultaneous AC and DC output, and output off.

[0054] Please refer to Figure 2 , in an embodiment, the portable DC emergency power supply 100 further includes a display screen 150. The display screen is connected to the main control module 143 in a wired manner and is used to display the electrical energy parameters output by the portable DC emergency power supply 100 in the working state to ensure the accurate output of electrical energy and guarantee the safety of the electrical equipment; and is used to display the electrical parameters during charging to facilitate obtaining the full-load condition of the energy storage module 142.

[0055] Please refer to Figure 1 , in a preferred embodiment of the present invention, the outer surface of the box body 110 is further provided with a first rib 111 and a second rib 112, and the cover body 130 is provided with a buckle 132, a third rib 133, and a fourth rib 134; the third rib 133 and the fourth rib 134 are located on both sides of the buckle 132 and are used to protect the buckle 132. When the buckle 132 is connected to the box body 110, the first rib 111 and the second rib 112 are also located on both sides of the buckle 132, which are used to protect the buckle 132 and improve the explosion-proof strength of the box body 110.

[0056] It can be understood that the settings of the first rib 111, the second rib 112, the third rib 133, and the fourth rib 134 can protect the buckle 132, reduce the possibility of the buckle 132 loosening during handling or carrying, improve the reliability and service life of the buckle 132, and enhance the stability of the connection between the cover body 130 and the box body 110. On the other hand, the ribs are distributed on the surfaces of the box body 110 and the cover body 130, which can effectively disperse and resist external pressure, prevent the box body 110 and the cover body 130 from deforming during handling and use, and improve the structural strength.

[0057] Further, as Figure 3 shown, a reinforcing strip 113 is further provided inside the box body 110. The reinforcing strip 113 is located at the bottom of the box body 110 and extends to the side wall of the box body 110.

[0058] It can be understood that the setting of the reinforcing strip 113 can significantly enhance the overall structural strength of the box body 110. The reinforcing strip 113 extending from the bottom to the side wall can effectively disperse and withstand the stress from all directions, prevent the box body 110 from deforming or cracking during use, and effectively protect the various functional modules inside the box body 110.

[0059] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable DC emergency power supply, characterized in that, It includes a box body, a control panel, a cover body, and a power circuit component; The power circuit component includes a charging module, an energy storage module, a main control module, and a DC boost module; the charging module is connected to the energy storage module by wire; both the energy storage module and the DC boost module are connected to the main control module by wire; There are a first configuration cavity and a second configuration cavity stacked on each other in the box body, and the first configuration cavity is located at the bottom of the box body; the charging module and the energy storage module are installed in the first configuration cavity, the main control module and the DC boost module are located in the second configuration cavity, and the control panel covers the upper part of the second configuration cavity; The cover body covers the upper part of the control panel and is fixedly connected to the box body; a handle is arranged above the cover body, the handle is movably connected to the cover body, a groove is formed on the upper surface of the cover body, and the handle can be received in the groove.

2. The portable DC emergency power supply according to claim 1, characterized in that, The lower surface of the cover body is of a concave structure, and a receiving cavity is formed between the cover body and the control panel.

3. The portable DC emergency power supply according to claim 1, characterized in that, The control panel is provided with a first positive electrode interface, a second positive electrode interface, and a first negative electrode interface, and the first positive electrode interface, the second positive electrode interface, and the first negative electrode interface are all connected to the DC boost module by wire; the first positive electrode interface and the second positive electrode interface share the first negative electrode interface.

4. The portable DC emergency power supply according to claim 3, wherein The power circuit component further includes an inverter control module, and the inverter control module is respectively connected to the energy storage module and the main control module by wire and is used for converting direct current into alternating current; The control panel is provided with an AC output interface, and the AC output interface is connected to the inverter control module by wire.

5. The portable DC emergency power supply according to claim 4, characterized in that The power circuit component further includes a first switch and a second switch, and the first switch and the second switch are installed on the control panel; the first switch and the second switch are respectively connected to the main control module by wire, the first switch is used for switching the AC and DC outputs of the power supply; the second switch is used for switching the first positive electrode interface or the first positive electrode interface of the DC output to realize the power supply of the target interface.

6. The portable DC emergency power supply according to claim 5, characterized in that, It further includes a display screen, and the display screen is connected to the main control module by wire and is used for displaying the electrical energy parameters output by the portable DC emergency power supply in the working state.

7. The portable DC emergency power supply according to claim 1, characterized in that The outer surface of the box body is further provided with a first rib and a second rib, and the cover body is provided with a buckle, a third rib, and a fourth rib; the third rib and the fourth rib are located on both sides of the buckle and are used for protecting the buckle. When the buckle is connected to the box body, the first rib and the second rib are also located on both sides of the buckle, which are used for protecting the buckle and improving the explosion-proof strength of the box body.

8. The portable DC emergency power supply according to claim 1, wherein Reinforcing bars are further arranged inside the box body, and the reinforcing bars are located at the bottom of the box body and extend to the side walls of the box body.

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