External voltage stabilizer for energy storage converter

Abstract

The invention discloses an external voltage stabilizing device for an energy storage converter, and relates to the technical field of energy storage converters, and the external voltage stabilizing device is characterized in that a voltage stabilizer is fixedly connected to the inner wall of a cabinet body, a wire outlet is formed in the side end of the cabinet body, a cable is fixedly connected to the side end of the voltage stabilizer, a connector is fixedly connected to the side end of the cable, and a protective shell is fixedly connected to the side end of the cabinet body. A plurality of heat dissipation plates are arranged in the protection shell at equal intervals in the height direction of the cabinet body, the side ends of the heat dissipation plates are fixedly connected with the cabinet body, the two sets of cabinet doors are hinged to the cabinet body, and the side ends of the cabinet doors are fixedly connected with handles; the heat dissipation plate is arranged in the protective shell and can transfer and remove heat generated during operation of the voltage stabilizer, meanwhile, dust cannot enter the cabinet body to affect normal operation of the voltage stabilizer, the sealing gasket is arranged between the cabinet body and the cabinet door and can seal a gap between the cabinet body and the cabinet door, and therefore outdoor dust is blocked, and the service life of the voltage stabilizer is prolonged. And dust or rainwater is prevented from entering the cabinet body through a gap between the cabinet body and the cabinet door.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage converters, and in particular to an external voltage stabilizing device for an energy storage converter. Background Art

[0002] The energy storage converter, also known as the energy storage inverter, is the core equipment in the energy storage system. It is mainly responsible for controlling the charging and discharging process of the energy storage system and converting AC to DC. It can convert the DC power of the energy storage system into AC power and transmit it to the power grid or for AC loads; it can also rectify the AC power of the power grid into DC power to charge the energy storage system.

[0003] In the prior art, the energy storage inverter is often stabilized by an external voltage stabilizing device. The voltage stabilizing device is mainly composed of a cabinet, a voltage stabilizer and a connector. The voltage stabilizer is fixed to the cabinet by bolts and then connected to the energy storage inverter through the connector. When the voltage stabilizer is running, the heat generated is dissipated through the heat dissipation holes opened in the cabinet.

[0004] However, when the voltage stabilizer is used outdoors, outdoor dust may enter the cabinet through the heat dissipation holes. When the dust floats on the voltage stabilizer, the dust may affect the normal operation of the voltage stabilizer, thereby affecting the normal use of the voltage stabilizer. Summary of the invention

[0005] The purpose of the present invention is to provide an external voltage stabilizing device for an energy storage inverter to solve the technical problem in the prior art that when the voltage stabilizing device is used outdoors, outdoor dust will enter the cabinet through the heat dissipation holes. When the dust floats on the voltage stabilizer, the dust will affect the normal operation of the voltage stabilizer, thereby affecting the normal use of the voltage stabilizing device.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] An external voltage stabilizing device for an energy storage converter, comprising:

[0008] A cabinet, wherein a voltage stabilizer is fixedly connected to the inner wall of the cabinet, a wire outlet is provided at a side end of the cabinet, a cable is fixedly connected to the side end of the voltage stabilizer, and a connector is fixedly connected to the side end of the cable;

[0009] A protective shell, the protective shell is fixedly connected to the side end of the cabinet, a plurality of heat sinks are equidistantly arranged in the protective shell along the height direction of the cabinet, and the side ends of the heat sinks are fixedly connected to the cabinet;

[0010] The cabinet doors are provided with two groups and are respectively hingedly connected to the cabinet body, and handles are fixedly connected to the side ends of the cabinet doors.

[0011] As a further solution of the present invention: the side ends of the cabinet doors are in an "L" shape, the two sets of cabinet doors are abutted and connected, heat conducting plates are respectively provided on both sides of the voltage stabilizer, the cross-section of the heat conducting plate is in an "L" shape, and the two ends of the heat conducting plate are respectively fixedly connected to the voltage stabilizer and the inner wall of the cabinet door.

[0012] As a further solution of the present invention: a plurality of heat dissipation plates are equidistantly distributed and staggered along the height direction of the protective shell, two ends of the heat dissipation plates are respectively fixedly connected to the cabinet and the inner wall of the protective shell, and a connecting plate is fixedly connected to the top of the heat dissipation plate.

[0013] As a further solution of the present invention: the cross section of the connecting plate is circular.

[0014] As a further solution of the present invention: an air inlet is provided at the side end of the protective shell, an air outlet is provided at the bottom of the protective shell, an air inlet pipe is fixedly connected to the side end of the protective shell, and the air inlet pipe is communicated with the air inlet.

[0015] As a further solution of the present invention: the cross section of the air intake pipe is bent, a dustproof plate is fixedly connected to the inner wall of the air intake pipe, and a drip groove is opened at the bottom end of the air intake pipe.

[0016] As a further solution of the present invention: a blower is provided at the side end of the air inlet, the blower is fixedly connected to the inner wall of the protective shell, and the blower is arranged on the top of the protective shell.

[0017] As a further solution of the present invention: a blocking plate is fixedly connected to the inner wall of the air outlet, and two groups of inclined plates are provided on the top of the blocking plate. The two groups of inclined plates are symmetrically arranged along the axis of the protective shell, and the inclined plates are inclined and the upper and lower ends are fixedly connected to the inner wall of the protective shell respectively.

[0018] As a further solution of the present invention: a connection pad is fixedly connected to the inner wall of the cable outlet, and the connection pad is butted and connected to the outer wall of the cable.

[0019] As a further solution of the present invention: a plurality of abutment pads are fixedly connected to the inner wall of the connection pad at equal distances along the axis of the cable, and the abutment pads have a semicircular cross-section and are abuttingly connected to the cable.

[0020] Beneficial effects of the present invention:

[0021] 1. When the voltage stabilizer is fixed in the cabinet and runs, the heat generated by the voltage stabilizer is transferred to the heat sink through the cabinet, and then dissipated through the heat sink. The heat sink is set in the protective shell. The heat sink can transfer and remove the heat generated by the voltage stabilizer. At the same time, dust will not enter the cabinet and affect the normal operation of the voltage stabilizer. When the cabinet is set outdoors for use, the heat sink is set in the protective shell. The protective shell can protect the heat sink to prevent outdoor animals from damaging the heat sink.

[0022] 2. When the voltage stabilizer is used outdoors, the cabinet can protect the voltage stabilizer. When the user controls the handle to rotate the cabinet door to close it on the cabinet, a sealing gasket is provided between the cabinet and the cabinet door. The sealing gasket can seal the gap between the cabinet and the cabinet door, thereby blocking outdoor dust and preventing dust or rainwater from entering the cabinet through the gap between the cabinet and the cabinet door. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a front view of the overall structure of the present invention;

[0026] Figure 3 It is the AA cross-sectional view of the overall structure of the present invention;

[0027] Figure 4 It is a cross-sectional view of the overall structure BB of the present invention;

[0028] Figure 5 For the present invention Figure 3 A schematic diagram of the structure at A;

[0029] Figure 6 For the present invention Figure 3 A schematic diagram of the structure at B;

[0030] Figure 7 It is a schematic diagram of the connection pad structure of the present invention.

[0031] In the figure: 1. cabinet body; 2. cabinet door; 3. handle; 4. air inlet pipe; 5. protective shell; 6. connector; 7. cable; 8. voltage stabilizer; 9. heat conduction plate; 10. outlet; 11. connecting pad; 12. dustproof plate; 13. blower; 14. heat sink; 15. air inlet; 16. tilting plate; 17. blocking plate; 18. air outlet; 19. connecting plate; 20. supporting pad; 21. drip groove. DETAILED DESCRIPTION

[0032] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0033] like Figure 1-Figure 7 As shown, an external voltage stabilizing device for an energy storage converter comprises: a cabinet 1, a protective shell 5 and a cabinet door 2,

[0034] The inner wall of the cabinet 1 is fixedly connected to a voltage stabilizer 8, a wire outlet 10 is provided at the side end of the cabinet 1, a cable 7 is fixedly connected to the side end of the voltage stabilizer 8, a connector 6 is fixedly connected to the side end of the cable 7, the protective shell 5 is fixedly connected to the side end of the cabinet 1, a plurality of heat sinks 14 are equidistantly provided in the protective shell 5 along the height direction of the cabinet 1, the side ends of the heat sinks 14 are fixedly connected to the cabinet 1, the cabinet door 2 is provided with two groups and respectively hingedly connected to the cabinet 1, a handle 3 is fixedly connected to the side end of the cabinet door 2, and when the voltage stabilizer 8 is fixed to the cabinet 1 When the cabinet 1 is operated indoors, the heat generated by the voltage stabilizer 8 is transferred to the heat sink 14 through the cabinet 1, and then dissipated through the heat sink 14. The heat sink 14 is arranged in the protective shell 5. The heat sink 14 can transfer and remove the heat generated by the voltage stabilizer 8. At the same time, dust will not enter the cabinet 1 to affect the normal operation of the voltage stabilizer 8. When the cabinet 1 is set outdoors for use, the heat sink 14 is arranged in the protective shell 5. The protective shell 5 can protect the heat sink 14 to prevent outdoor animals from damaging the heat sink 14.

[0035] When the voltage stabilizer 8 is used outdoors, the cabinet 1 can protect the voltage stabilizer 8. When the user controls the handle 3 to rotate the cabinet door 2 to close the cabinet 1, a sealing gasket is provided between the cabinet 1 and the cabinet door 2. The sealing gasket can seal the gap between the cabinet 1 and the cabinet door 2, thereby blocking outdoor dust and preventing dust or rainwater from entering the cabinet 1 through the gap between the cabinet 1 and the cabinet door 2.

[0036] In some specific embodiments, the side ends of the cabinet doors 2 are in an "L" shape, and the two groups of cabinet doors 2 are abutted and connected. Heat conducting plates 9 are respectively provided on both sides of the voltage stabilizer 8. The cross-section of the heat conducting plates 9 is in an "L" shape. The two ends of the heat conducting plates 9 are respectively fixedly connected to the voltage stabilizer 8 and the inner wall of the cabinet door 2. When the cabinet door 2 is closed, a sealing gasket can be provided on the surface between the two groups of cabinet doors 2, and the sealing gasket can seal the gap between the two groups of cabinet doors 2. Among them, the shape of the side ends of the cabinet door 2 can ensure that the two groups of cabinet doors 2 can abut against each other. In order for the voltage stabilizer 8 to better transfer heat to the heat dissipation plate 14 through the cabinet body 1, the shape of the heat conducting plate 9 can transfer the heat of the voltage stabilizer 8 to the cabinet body 1. The heat conducting plate 9 increases the contact area between the voltage stabilizer 8 and the cabinet body 1, thereby improving the efficiency of the voltage stabilizer 8 in transferring heat to the cabinet body 1, thereby improving the effect of heat dissipation of the heat of the voltage stabilizer 8. It should be noted that the heat conducting plate 9 can limit the two ends of the cable 7, thereby avoiding the phenomenon that the cable 7 is in a disorderly manner in the cabinet body 1.

[0037] In some specific embodiments, a plurality of the heat sinks 14 are equidistantly distributed and staggered along the height direction of the protective shell 5, the two ends of the heat sink 14 are respectively fixedly connected to the cabinet 1 and the inner wall of the protective shell 5, and the top of the heat sink 14 is fixedly connected with a connecting plate 19. The distribution method of the heat sink 14 can ensure that the airflow flows along the heat sink 14 in the protective shell 5, and the fixing method of the heat sink 14 can provide support and fixation for the protective shell 5. When the protective shell 5 is hit by the outside, the heat sink 14 can prevent the protective shell 5 from being seriously deformed.

[0038] In some specific embodiments, the connecting plate 19 has a circular cross-section. The shape of the connecting plate 19 can increase the heat dissipation area of ​​the heat dissipation plate 14. At the same time, when the airflow flows along the surface of the heat dissipation plate 14, the connecting plate 19 can reduce the obstruction to the airflow.

[0039] In some specific embodiments, an air inlet 15 is provided at the side end of the protective shell 5, an air outlet 18 is provided at the bottom of the protective shell 5, and an air inlet pipe 4 is fixedly connected to the side end of the protective shell 5. The air inlet pipe 4 is communicated with the air inlet 15. When heat is transferred to the heat sink 14, in order to better remove the heat from the heat sink 14, air flows into the protective shell 5 from the air inlet 15, and the air can flow along the surface of the heat sink 14. The airflow flows downward along the surface of the heat sink 14 and finally flows out from the air outlet 18. In order to prevent outdoor rainwater from entering the protective shell 5 from the air inlet 15, the air inlet pipe 4 can block the rainwater to prevent rainwater from entering the protective shell 5 through the air inlet 15.

[0040] In some specific embodiments, the cross-section of the air inlet pipe 4 is bent, a dustproof plate 12 is fixedly connected to the inner wall of the air inlet pipe 4, and a drip groove 21 is opened at the bottom of the air inlet pipe 4. The shape of the air inlet pipe 4 can ensure that the air enters the air inlet pipe 4 from the bottom end of the air inlet pipe 4, and then enters the protective shell 5 along the inside of the air inlet pipe 4. The shape of the air inlet pipe 4 can block rainwater, and the rainwater will not flow vertically upward along the inner wall of the air inlet pipe 4 due to its own gravity. In order to prevent rainwater from being sucked into the air inlet pipe 4, when rainwater flows along the outer wall of the air inlet pipe 4 to the bottom of the air inlet pipe 4, the rainwater will flow along the bottom edge of the air inlet pipe 4 to the air inlet at the bottom of the air inlet pipe 4. At this time, the drip groove 21 opened at the bottom of the air inlet pipe 4 can block rainwater, and the dustproof plate 12 can block outdoor dust to prevent dust from entering the protective shell 5 from the air inlet pipe 4.

[0041] In some specific embodiments, a blower 13 is provided at the side end of the air inlet 15, and the blower 13 is fixedly connected to the inner wall of the protective shell 5. The blower 13 is arranged on the top of the protective shell 5. In order for the air to flow quickly along the surface of the heat sink 14, the blower 13 runs, and the blower 13 sucks the air in the air inlet pipe 4, and then sprays the air into the protective shell 5 to push the air. The airflow can flow quickly along the surface of the heat sink 14, thereby achieving the effect of air cooling the heat sink 14.

[0042] In some specific embodiments, a blocking plate 17 is fixedly connected to the inner wall of the air outlet 18, and two groups of inclined plates 16 are provided on the top of the blocking plate 17. The two groups of inclined plates 16 are symmetrically arranged along the axial line of the protective shell 5, and the inclined plates 16 are inclined and the upper and lower ends are respectively fixedly connected to the inner wall of the protective shell 5. When the airflow flows to the bottom of the protective shell 5, the airflow flows out from the air outlet 18. The blocking plate 17 fixed on the inner wall of the air outlet 18 can block the dust outside the protective shell 5, wherein the inclined plate 16 can guide the airflow. At the same time, the inclined setting of the inclined plate 16 can block rainwater, thereby preventing rainwater from remaining on the inner wall of the protective shell 5, and further preventing rainwater from rusting the heat sink 14 and the inner wall of the protective shell 5.

[0043] In some specific embodiments, a connection pad 11 is fixedly connected to the inner wall of the cable outlet 10, and the connection pad 11 is abutted against the outer wall of the cable 7. In order to prevent dust from entering the cabinet 1 through the gap between the cable outlet 10 and the cable 7, the connection pad 11 fixed on the inner wall of the cable outlet 10 abuts against the cable 7, thereby blocking and sealing the gap between the cable outlet 10 and the cable 7, thereby achieving a dust-proof effect on the interior of the cabinet 1.

[0044] In some specific embodiments, a plurality of supporting pads 20 are fixedly connected to the inner wall of the connecting pad 11 at equal intervals along the axis of the cable 7. The supporting pads 20 have a semicircular cross-section and are connected to the cable 7 in a supporting manner. In order for the connecting pad 11 to fully support the cable 7, the supporting pads 20 fixed to the connecting pad 11 can increase the supporting effect of the cable 7. When the cable 7 passes through the connecting pad 11, the supporting pads 20 are squeezed and deformed by the cable 7, thereby fully wrapping the outer wall of the cable 7.

[0045] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0046] When the voltage stabilizer 8 is fixed in the cabinet 1 and is running, the heat generated by the voltage stabilizer 8 is transferred to the heat sink 14 through the cabinet 1, and then the heat is dissipated through the heat sink 14. The blower 13 is running, and the blower 13 sucks the air in the air inlet pipe 4 through the air inlet 15, and then sprays the air into the protective shell 5 to push the air. The airflow can flow quickly along the surface of the heat sink 14, and the airflow takes away the heat from the surface of the heat sink 14, and then discharges it from the air outlet 18. Among them, when the outdoor air enters 4 from the bottom of 4, 12 can block the dust in the outdoor air;

[0047] The heat sink 14 is arranged in the protective shell 5. The heat sink 14 can transfer and remove the heat generated by the operation of the voltage stabilizer 8. At the same time, dust will not enter the cabinet 1 to affect the normal operation of the voltage stabilizer 8. When the cabinet 1 is set outdoors for use, the heat sink 14 is set in the protective shell 5. The protective shell 5 can protect the heat sink 14 to prevent outdoor animals from damaging the heat sink 14. In order to prevent rainwater from being sucked into the air intake pipe 4, when rainwater flows along the outer wall of the air intake pipe 4 to the bottom of the air intake pipe 4, the rainwater will flow along the bottom edge of the air intake pipe 4 to the air inlet at the bottom of the air intake pipe 4. At this time, the drip groove 21 opened at the bottom of the air intake pipe 4 can block the rainwater, and the dustproof plate 12 can block outdoor dust to prevent dust from entering the protective shell 5 from the air intake pipe 4.

[0048] Several embodiments of the present invention are described in detail above, but the embodiments of the present invention are not limited thereto and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An external voltage stabilizing device for an energy storage converter, characterized in that: include: A cabinet (1), wherein a voltage stabilizer (8) is fixedly connected to the inner wall of the cabinet (1), a wire outlet (10) is provided at a side end of the cabinet (1), a cable (7) is fixedly connected to the side end of the voltage stabilizer (8), and a connector (6) is fixedly connected to the side end of the cable (7); A protective shell (5), the protective shell (5) being fixedly connected to a side end of the cabinet (1), a plurality of heat dissipation plates (14) being equidistantly arranged in the protective shell (5) along a height direction of the cabinet (1), and a side end of the heat dissipation plate (14) being fixedly connected to the cabinet (1); Cabinet doors (2), the cabinet doors (2) are provided with two groups and are respectively hingedly connected to the cabinet body (1), and handles (3) are fixedly connected to the side ends of the cabinet doors (2).

2. The external voltage stabilizing device for an energy storage converter according to claim 1, characterized in that: The side ends of the cabinet doors (2) are in an "L" shape, the two sets of cabinet doors (2) are butt-connected, heat conducting plates (9) are respectively provided on both sides of the voltage stabilizer (8), the cross section of the heat conducting plates (9) is in an "L" shape, and the two ends of the heat conducting plates (9) are respectively fixedly connected to the voltage stabilizer (8) and the inner wall of the cabinet door (2).

3. The external voltage stabilizing device for an energy storage converter according to claim 1, characterized in that: The plurality of heat dissipation plates (14) are equidistantly distributed and staggered along the height direction of the protective shell (5); two ends of the heat dissipation plates (14) are respectively fixedly connected to the cabinet (1) and the inner wall of the protective shell (5); and a connecting plate (19) is fixedly connected to the top of the heat dissipation plates (14).

4. The external voltage stabilizing device for an energy storage converter according to claim 3, characterized in that: The connecting plate (19) has a circular cross section.

5. The external voltage stabilizing device for an energy storage converter according to claim 1, characterized in that: An air inlet (15) is provided at the side end of the protective shell (5), an air outlet (18) is provided at the bottom of the protective shell (5), an air inlet pipe (4) is fixedly connected to the side end of the protective shell (5), and the air inlet pipe (4) and the air inlet (15) are in communication with each other.

6. The external voltage stabilizing device for an energy storage converter according to claim 5, characterized in that: The cross section of the air intake pipe (4) is bent, a dustproof plate (12) is fixedly connected to the inner wall of the air intake pipe (4), and a drip groove (21) is provided at the bottom end of the air intake pipe (4).

7. The external voltage stabilizing device for an energy storage converter according to claim 5, characterized in that: A blower (13) is provided at the side end of the air inlet (15); the blower (13) is fixedly connected to the inner wall of the protective shell (5); and the blower (13) is arranged on the top of the protective shell (5).

8. The external voltage stabilizing device for an energy storage converter according to claim 5, characterized in that: The inner wall of the air outlet (18) is fixedly connected with a blocking plate (17), and two groups of inclined plates (16) are arranged on the top of the blocking plate (17). The two groups of inclined plates (16) are symmetrically arranged along the axis of the protective shell (5), and the inclined plates (16) are inclined and the upper and lower ends are fixedly connected to the inner wall of the protective shell (5).

9. The external voltage stabilizing device for an energy storage converter according to claim 1, characterized in that: A connection pad (11) is fixedly connected to the inner wall of the cable outlet (10), and the connection pad (11) is butt-connected to the outer wall of the cable (7).

10. The external voltage stabilizing device for an energy storage converter according to claim 9, characterized in that: The inner wall of the connection pad (11) is fixedly connected with a plurality of abutment pads (20) at equal intervals along the axis of the cable (7); the abutment pads (20) have a semicircular cross section and are abuttingly connected to the cable (7).

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