CN219643362U - Low-voltage cabinet and photovoltaic box-type substation - Google Patents

Abstract

The utility model discloses a low-voltage cabinet and a photovoltaic box-type substation, which relate to the technical field of transformers, wherein the low-voltage cabinet comprises a cabinet body, an auxiliary dry-type transformer, a control assembly and a storage battery pack, wherein a first fire-proof plate and a second fire-proof plate which are arranged at intervals are arranged in the cabinet body, so that the inner cavity of the cabinet body is divided into a first cavity, a second cavity and a third cavity from bottom to top; the auxiliary dry-type transformer is arranged in the first cavity; the control assembly comprises a UPS control host, a breaker and a fuse set, and is arranged in one of the second cavity and the third cavity; the storage battery pack is arranged in the other of the second cavity and the third cavity, and if the storage battery pack and the auxiliary dry type transformer are on fire, the control assembly cannot be affected, so that the control assembly can conduct power-off protection, the fire is prevented from being continuously expanded, and the whole light Fu Xiangshi transformer substation is prevented from being burnt.

Description

Low-voltage cabinet and photovoltaic box-type substation

Technical Field

The utility model relates to the technical field of transformers, in particular to a low-voltage cabinet and a photovoltaic box-type transformer substation.

Background

The photovoltaic box-type substation has the functions of converging the low-voltage energy converted by the solar photovoltaic panel and boosting the voltage of the low-voltage energy into a main power grid, and plays a vital role in the whole photovoltaic power generation system. In the related art, the photovoltaic box-type substation measurement and control protection system comprises a UPS control host, a circuit breaker and other control components, a storage battery pack, an auxiliary dry-type transformer and the like, and the components are all installed in a low-voltage cabinet. The storage battery and the auxiliary dry type transformer are easy to fire, and the control assembly can be burnt out when the storage battery and the auxiliary dry type transformer are on fire, so that the storage battery and the auxiliary dry type transformer cannot be subjected to power-off protection, the fire is further increased, and the whole light Fu Xiangshi transformer substation is burnt out.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the low-voltage cabinet, if the storage battery pack and the auxiliary dry type transformer are on fire, the control component is not affected, so that the control component can perform power-off protection, the fire is prevented from being continuously expanded, and the whole light Fu Xiangshi transformer substation is prevented from being burnt.

The utility model further provides a photovoltaic box-type transformer station with the low-voltage cabinet.

The low-voltage cabinet comprises a cabinet body, an auxiliary dry-type transformer, a control assembly and a storage battery pack, wherein a first fire-proof plate and a second fire-proof plate which are arranged at intervals are arranged in the cabinet body, so that the inner cavity of the cabinet body is divided into a first cavity, a second cavity and a third cavity from bottom to top; the auxiliary dry-type transformer is arranged in the first cavity; the control assembly comprises a UPS control host, a breaker and a fuse set, and is installed in one of the second cavity and the third cavity; the battery pack is mounted in the other of the second chamber and the third chamber.

The low-voltage cabinet provided by the embodiment of the utility model has at least the following beneficial effects: the first fire-isolating plate and the second fire-isolating plate are arranged in the cabinet body at intervals from bottom to top, so that the inner cavity of the cabinet body is divided into a first cavity, a second cavity and a third cavity from bottom to top; the auxiliary dry-type transformer is arranged in the first cavity; the control assembly comprises a UPS control host, a breaker and a fuse set, and is arranged in one of the second cavity and the third cavity; the battery pack is mounted in the other of the second and third chambers. Therefore, if the storage battery or the auxiliary dry-type transformer fires, the fire is blocked by the first fire-blocking plate and the second fire-blocking plate, and control components such as a circuit breaker and the like are not affected, so that the control components can be timely subjected to power-off protection, the fire is prevented from being continuously expanded, and the whole light Fu Xiangshi transformer substation is prevented from being burnt.

According to one embodiment of the utility model, the first fire-barrier is provided with a first wire through hole, the second fire-barrier is provided with a second wire through hole, the auxiliary dry-type transformer, the control assembly and the storage battery pack are connected through a cable, and the first wire through hole and the second wire through hole are used for the cable to pass through.

According to one embodiment of the utility model, the low-voltage cabinet further comprises a voltage transformer mounted in any one of the first, second and third chambers.

According to one embodiment of the utility model, the control assembly is installed in the second cavity, the storage battery pack is installed in the third cavity, the cabinet body comprises a first installation piece, a second installation piece, a third installation piece and a main frame, the first installation piece is connected with the main frame and is positioned in the first cavity, and the auxiliary dry-type transformer is installed on the first installation piece; the second mounting piece is connected to the main frame and is positioned in the second cavity, and the control assembly is mounted on the second mounting piece; the third mounting piece is connected to the main frame and located in the third cavity, and the storage battery pack is mounted on the third mounting piece.

According to an embodiment of the present utility model, the main frame includes a plurality of columns disposed in an up-down direction and a plurality of main beams disposed in a horizontal direction, the columns and the main beams being connected to each other to form the main frame; the stand is followed the length direction of stand is equipped with a plurality of intervals and sets up first mounting hole, the stand pass through first mounting hole with first installed part the second installed part with the third installed part is connected.

According to one embodiment of the utility model, the first mounting member comprises a first side beam, a second side beam and a first mounting beam, wherein the first side beam, the second side beam and the first mounting beam are arranged along the horizontal direction, the first side beam and the second side beam are respectively connected to two opposite sides of the main frame, the first side beam is provided with a plurality of second mounting holes arranged at intervals along the length direction of the first side beam, the second side beam is provided with a plurality of third mounting holes arranged at intervals along the length direction of the second side beam, the first mounting beam is respectively connected between the first side beam and the second side beam through the second mounting holes and the third mounting holes, and the auxiliary dry-type transformer is mounted on the first mounting beam.

According to one embodiment of the present utility model, the second mounting member includes a third side beam, a fourth side beam and a second mounting beam, which are disposed along a horizontal direction, the third side beam and the fourth side beam are respectively connected to two opposite sides of the main frame, the third side beam is provided with a plurality of fourth mounting holes disposed at intervals along a length direction of the third side beam, the fourth side beam is provided with a plurality of fifth mounting holes disposed at intervals along a length direction of the fourth side beam, the second mounting beam is connected between the third side beam and the fourth side beam through the fourth mounting holes and the fifth mounting holes, respectively, and at least one of the UPS control host, the circuit breaker and the fuse set is mounted on the second mounting beam.

According to one embodiment of the present utility model, the third mounting member includes a fifth side beam, a sixth side beam and a third mounting beam, which are disposed along a horizontal direction, the fifth side beam and the sixth side beam are respectively connected to two opposite sides of the main frame, the fifth side beam is provided with a plurality of sixth mounting holes disposed at intervals along a length direction of the fifth side beam, the sixth side beam is provided with a plurality of seventh mounting holes disposed at intervals along a length direction of the sixth side beam, and the third mounting beam is connected between the fifth side beam and the sixth side beam through the sixth mounting holes and the seventh mounting holes, respectively, and the battery pack is mounted on the third mounting beam.

The photovoltaic box-type substation comprises the low-voltage cabinet.

The photovoltaic box-type substation provided by the embodiment of the utility model has at least the following beneficial effects: because the low-voltage cabinet is when battery or auxiliary dry-type transformer fires, control assembly can in time carry out the outage protection, prevents that the intensity of a fire from continuing to increase, prevents that whole light Fu Xiangshi transformer substation from being burnt, so the security of photovoltaic box-type substation is higher.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a low-voltage cabinet according to one embodiment of the utility model;

FIG. 2 is a front view of a low-voltage cabinet according to one embodiment of the utility model;

FIG. 3 is a left side view of a low-voltage cabinet according to one embodiment of the utility model;

fig. 4 is a schematic view of a first fire-blocking plate of a low-voltage cabinet according to an embodiment of the utility model.

Reference numerals:

a low-voltage cabinet 1000;

a cabinet 100; a first flame-retardant panel 110; a first via hole 111; a second flame-retardant panel 120; a second via hole 121; a first cavity 130; a second chamber 140; a third chamber 150; a first mount 160; a first side rail 161; a second mounting hole 1611; a second side rail 162; a third mounting hole 1621; a first mounting beam 163; a second mount 170; a third side cross member 171; a fourth mounting hole 1711; a fourth side cross member 172; a fifth mounting hole 1721; a second mounting beam 173; a seventh side cross member 174; an eighth mounting hole 1741; an eighth side rail 175; a ninth mounting hole 1751; a mounting plate 176; a third mount 180; a fifth side rail 181; a sixth mounting hole 1811; sixth side rail 182; a seventh mounting hole 1821; a third mounting beam 183; a main frame 190; column 191; a first mounting hole 1911; a main beam 192;

an auxiliary dry-type transformer 200;

a control assembly 300; a UPS control host 310; a circuit breaker 320; a fuse set 330;

battery pack 400;

a voltage transformer 500.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation, such as the orientation or positional relationship indicated above, below, inside, outside, etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

The photovoltaic box-type substation has the functions of converging the low-voltage energy converted by the solar photovoltaic panel and boosting the voltage of the low-voltage energy into a main power grid, and plays a vital role in the whole photovoltaic power generation system. In the related art, the photovoltaic box-type substation measurement and control protection system comprises a UPS control host, a circuit breaker and other control components, a storage battery pack, an auxiliary dry-type transformer and the like, and the components are all installed in a low-voltage cabinet. The storage battery and the auxiliary dry type transformer are easy to fire, and the control assembly can be burnt out when the storage battery and the auxiliary dry type transformer are on fire, so that the storage battery and the auxiliary dry type transformer cannot be subjected to power-off protection, the fire is further increased, and the whole light Fu Xiangshi transformer substation is burnt out.

To this end, an embodiment of the present utility model proposes a low-voltage cabinet 1000, particularly with reference to fig. 1 to 4 of the drawings of the specification.

Referring to fig. 1 and 2, a low-voltage cabinet 1000 according to an embodiment of the present utility model, the low-voltage cabinet 1000 includes a cabinet body 100, an auxiliary dry-type transformer 200, a control assembly 300, and a battery pack 400. Wherein, the cabinet 100 is provided therein with a first fire barrier 110 and a second fire barrier 120. It should be noted that, the first fire-barrier 110 and the second fire-barrier 120 are disposed at intervals from bottom to top, that is, the first fire-barrier 110 is located below the second fire-barrier 120, and a space is provided between the first fire-barrier 110 and the second fire-barrier 120. Referring to fig. 1 and 2, the first and second flame-retardant panels 110 and 120 divide the inner cavity of the cabinet 100 into a first cavity 130, a second cavity 140, and a third cavity 150. It should be noted that the first chamber 130, the second chamber 140, and the third chamber 150 are disposed in a bottom-to-top direction, that is, the first chamber 130 is located at the bottom, the third chamber 150 is located at the top, and the second chamber 140 is located between the first chamber 130 and the third chamber 150.

Referring to fig. 1 and 2, the auxiliary dry-type transformer 200 is installed in the first cavity 130. It will be appreciated that the auxiliary dry transformer 200 is heavy and therefore needs to be mounted in the first cavity 130 at the bottom. Obviously, after the auxiliary dry-type transformer 200 is installed in the first cavity 130, the center of gravity of the whole low-voltage cabinet 1000 is lowered, and the stability of the low-voltage cabinet 1000 is improved. In addition, the control assembly 300 includes a UPS control host 310, a circuit breaker 320, and a fuse set 330, and the control assembly 300 is capable of performing power-off protection for various components within the low-voltage cabinet 1000. It should be noted that the control assembly 300 is installed in one of the second chamber 140 and the third chamber 150. That is, the UPS control host 310 is installed in one of the second chamber 140 and the third chamber 150, the circuit breaker 320 is installed in one of the second chamber 140 and the third chamber 150, and the fuse set 330 is installed in one of the second chamber 140 and the third chamber 150. It will be appreciated that the UPS control host 310, the circuit breaker 320, and the fuse set 330 are mounted in the same cavity. Battery pack 400 is mounted in the other of second chamber 140 and third chamber 150.

It can be appreciated that, through the above arrangement, if the storage battery or the auxiliary dry-type transformer 200 fires, the fire will be blocked by the first fire-blocking plate 110 and the second fire-blocking plate 120, and the control components 300 such as the circuit breaker 320 will not be affected, so that the control components 300 can perform power-off protection in time, prevent the fire from continuing to expand, and prevent the whole light Fu Xiangshi transformer substation from being burnt.

Referring to fig. 1 and 2, in one embodiment, control assembly 300 is mounted within second chamber 140 and battery pack 400 is mounted within third chamber 150. It should be noted that, while auxiliary dry-type transformer 200 generates a large amount of heat during operation, battery pack 400 is greatly affected by the environment, and the higher the temperature, the higher the failure rate of battery pack 400. The battery pack 400 should be located as far away from the auxiliary dry type transformer 200 as possible when it is arranged. The first cavity 130 in which the auxiliary dry-type transformer 200 is located at the bottommost part of the cabinet body 100, the third cavity 150 is located at the topmost part of the cabinet body 100, and the influence of the heat generated by the auxiliary dry-type transformer 200 on the battery pack 400 can be reduced to the greatest extent by installing the battery pack 400 in the third cavity 150, so that the failure rate of the battery pack 400 is effectively reduced. In another embodiment, the battery pack 400 is installed in the second chamber 140, and the control assembly 300 is installed in the third chamber 150, which will not be described herein.

Referring to fig. 1 and 2, a low-voltage cabinet 1000 according to an embodiment of the present utility model, the low-voltage cabinet 1000 further includes a voltage transformer 500. The voltage transformer 500 is installed in any one of the first, second and third chambers 130, 140 and 150. The voltage transformer 500 is a voltage conversion device, which has the functions of voltage conversion and isolation, and converts the high voltage of a high-voltage loop or a low-voltage loop into low voltage (generally 100V), and the supply instrument and the relay protection device realize the functions of measurement, metering, protection and the like. Referring to fig. 1 and 3, in one embodiment, a voltage transformer 500 is mounted within the first cavity 130. It should be noted that, the voltage transformer 500 has a relatively large weight, and is installed in the first cavity 130 to further lower the center of gravity of the low-voltage cabinet 1000 and improve the stability of the low-voltage cabinet 1000.

Referring to fig. 1 and 4, in a low-voltage cabinet 1000 according to an embodiment of the present utility model, a first fire-blocking plate 110 is provided with a first via hole 111, and a second fire-blocking plate 120 is provided with a second via hole 121. The auxiliary dry-type transformer 200, the control unit 300, and the battery pack 400 are connected by cables, and the first and second via-holes 111 and 121 supply the cables. It can be appreciated that by providing the first via hole 111 and the second via hole 121, the first flame-retardant plate 110 and the second flame-retardant plate 120 can realize flame-retardant, and at the same time, electrical connection of each component in the low-voltage cabinet 1000 is not affected. Note that the number of the first via holes 111 and the second via holes 121 may be set according to practical situations, and is not particularly limited herein. The shape and size of the first via hole 111 are not specifically limited herein, and the shape and size of the second via hole 121 are not specifically limited herein.

Referring to fig. 1, a low-voltage cabinet 1000 according to an embodiment of the present utility model, the cabinet 100 includes a first mount 160, a second mount 170, a third mount 180, and a main frame 190. Wherein the first mount 160 is coupled to the main frame 190 and positioned within the first cavity 130, the second mount 170 is coupled to the main frame 190 and positioned within the second cavity 140, and the third mount 180 is coupled to the main frame 190 and positioned within the third cavity 150. In one embodiment, the auxiliary dry transformer 200 is mounted within the first cavity 130, in particular, the auxiliary dry transformer 200 is mounted to the first mount 160; the control assembly 300 is mounted in the second chamber 140, specifically, the control assembly 300 is mounted to the second mount 170; battery pack 400 is mounted in third cavity 150, and in particular, battery pack 400 is mounted to third mount 180. It should be noted that the cabinet 100 further includes a plurality of coamings, and the plurality of coamings are connected to the outer peripheral side of the cabinet 100.

Referring to fig. 1, the main frame 190 includes a plurality of columns 191 and a plurality of main beams 192. Wherein, a plurality of stand columns 191 are disposed along the up-down direction, a plurality of main beams 192 are disposed along the horizontal direction, and a plurality of stand columns 191 are connected with a plurality of main beams 192 to form a main frame 190. The column 191 is provided with a plurality of first mounting holes 1911. Wherein, a plurality of first mounting holes 1911 are spaced apart along the length of the upright 191. In one embodiment, a plurality of first mounting holes 1911 are uniformly spaced along the length of column 191. The upright 191 is connected to the first mount 160, the second mount 170, and the third mount 180 through the first mount hole 1911, and the upright 191 is connected to the first flame-retardant panel 110 and the second flame-retardant panel 120 through the first mount hole 1911. It will be appreciated that with the above arrangement, the user can adjust the up and down position of the first mount 160 as desired; the user can adjust the up and down position of the second mount 170 as desired; the user can adjust the up-down position of the third mount 180 as desired; the user can adjust the up-down position of the first flame retardant panel 110 as desired; the user can adjust the up-down position of the second flame retardant panel 120 as desired.

Referring to fig. 1 and 3, the first mount 160 includes a first side beam 161, a second side beam 162, and a first mount beam 163. Wherein the first side rail 161, the second side rail 162, and the first mounting beam 163 are all disposed in the horizontal direction. In addition, the first and second side rails 161 and 162 are connected to opposite sides of the main frame 190, respectively. In one embodiment, the first side rail 161 and the second side rail 162 are connected to left and right sides of the main frame 190, respectively. The first side beam 161 is provided with a plurality of second mounting holes 1611, and the plurality of second mounting holes 1611 are arranged at intervals along the length direction of the first side beam 161; the second side rail 162 is provided with a plurality of third mounting holes 1621, and the plurality of third mounting holes 1621 are disposed at intervals along the length direction of the second side rail 162. In one embodiment, the plurality of second mounting holes 1611 are uniformly spaced along the length of the first side rail 161; the plurality of third mounting holes 1621 are uniformly spaced along the length of the second side rail 162. The first mounting beam 163 is connected between the first side beam 161 and the second side beam 162 through the second mounting hole 1611 and the third mounting hole 1621, respectively. Specifically, the first mounting beam 163 is connected to the first side rail 161 through the second mounting hole 1611, and the first mounting beam 163 is connected to the second side rail 162 through the third mounting hole 1621. The auxiliary dry-type transformer 200 is mounted to the first mounting beam 163. It will be appreciated that with the above arrangement, a user can adjust the front-to-back position of the first mounting beam 163 as desired, i.e., the front-to-back position of the auxiliary dry transformer 200 within the first cavity 130 as desired.

Referring to fig. 1 and 3, it should be noted that the second mount 170 includes a third side beam 171, a fourth side beam 172, and a second mount beam 173. Wherein the third side cross member 171, the fourth side cross member 172 and the second mounting beam 173 are all disposed in the horizontal direction. In addition, the third side cross member 171 and the fourth side cross member 172 are connected to opposite sides of the main frame 190, respectively. In one embodiment, the third side rail 171 and the fourth side rail 172 are connected to the left and right sides of the main frame 190, respectively. The third side beam 171 is provided with a plurality of fourth mounting holes 1711, and the plurality of fourth mounting holes 1711 are arranged at intervals along the length direction of the third side beam 171; the fourth side cross member 172 is provided with a plurality of fifth mounting holes 1721, and the plurality of fifth mounting holes 1721 are arranged at intervals along the length direction of the fourth side cross member 172. In one embodiment, the plurality of fourth mounting holes 1711 are uniformly spaced along the length of the third side rail 171; the plurality of fifth mounting holes 1721 are uniformly spaced apart along the length of the fourth side rail 172. The second mounting beam 173 is connected between the third side beam 171 and the fourth side beam 172 through the fourth mounting hole 1711 and the fifth mounting hole 1721, respectively. Specifically, the second mounting beam 173 is connected to the third side rail 171 through a fourth mounting hole 1711, and the second mounting beam 173 is connected to the fourth side rail 172 through a fifth mounting hole 1721. It should be noted that at least one of the UPS control host 310, the circuit breaker 320, and the fuse set 330 is mounted to the second mounting beam 173.

Referring to fig. 1 and 3, in one embodiment, the second mount 170 further includes a seventh side rail 174, an eighth side rail 175, and a mounting plate 176, each of the seventh side rail 174 and the eighth side rail 175 being connected to the left side of the main frame 190, the mounting plate 176 being connected to the seventh side rail 174 and the eighth side rail 175, respectively; the UPS control host 310 is mounted to the second mounting bracket, and the circuit breaker 320 and fuse set 330 are mounted to the mounting plate 176. The seventh side cross member 174 has a plurality of eighth mounting holes 1741 provided at intervals along the longitudinal direction of the seventh side cross member 174, and the eighth side cross member 175 has a plurality of ninth mounting holes 1751 provided at intervals along the longitudinal direction of the eighth side cross member 175. The mounting plate 176 is connected to the seventh side rail 174 through an eighth mounting hole 1741, and the mounting plate 176 is connected to the eighth side rail 175 through a ninth mounting hole 1751. It will be appreciated that with the above arrangement, a user can adjust the front-to-back position of the second mounting beam 173 and mounting plate 176 as desired, i.e., the front-to-back position of the UPS control host 310, circuit breaker 320, and fuse set 330 within the second cavity 140 as desired.

Referring to fig. 1 and 3, it should be noted that the third mounting member 180 includes a fifth side cross member 181, a sixth side cross member 182, and a third mounting beam 183. Wherein the fifth side rail 181, the sixth side rail 182 and the third mounting rail 183 are all disposed in a horizontal direction. In addition, the fifth and sixth side rails 181 and 182 are connected to opposite sides of the main frame 190, respectively. In one embodiment, the fifth and sixth side rails 181 and 182 are connected to left and right sides of the main frame 190, respectively. The fifth side beam 181 is provided with a plurality of sixth mounting holes 1811, and the plurality of sixth mounting holes 1811 are spaced apart along the length direction of the fifth side beam 181; the sixth side rail 182 is provided with a plurality of seventh mounting holes 1821, and the plurality of seventh mounting holes 1821 are spaced apart along the length of the sixth side rail 182. In one embodiment, the plurality of sixth mounting holes 1811 are uniformly spaced along the length of the fifth side rail 181; the seventh mounting holes 1821 are uniformly spaced along the length of the sixth side rail 182. The third mounting beam 183 is connected between the fifth side beam 181 and the sixth side beam 182 by a sixth mounting hole 1811 and a seventh mounting hole 1821, respectively. Specifically, the third mounting beam 183 is connected to the fifth side rail 181 by a sixth mounting hole 1811, and the third mounting beam 183 is connected to the sixth side rail 182 by a seventh mounting hole 1821. Note that battery pack 400 is mounted to third mounting beam 183. It will be appreciated that with the above arrangement, the user can adjust the front-to-back position of third mounting beam 183 as desired, i.e., can adjust the front-to-back position of battery pack 400 within third chamber 150 as desired.

An embodiment of the utility model also proposes a photovoltaic box-type substation comprising a low-voltage cabinet 1000 according to an embodiment of the utility model.

According to the photovoltaic box-type substation provided by the embodiment of the utility model, when the storage battery or the auxiliary dry-type transformer 200 fires, the control assembly 300 can timely perform power-off protection, so that the fire is prevented from being continuously increased, the whole light Fu Xiangshi substation is prevented from being burnt, and the safety of the photovoltaic box-type substation is higher.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, and finally, it should be described that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present utility model.

Claims (9)

1. Low-voltage cabinet, its characterized in that includes:

the inner cavity of the cabinet body is divided into a first cavity, a second cavity and a third cavity from bottom to top;

an auxiliary dry-type transformer mounted in the first cavity;

a control assembly including a UPS control host, a circuit breaker, and a fuse set, the control assembly mounted within one of the second cavity and the third cavity;

and a battery pack mounted in the other of the second chamber and the third chamber.

2. The low-voltage cabinet of claim 1, wherein the first fire-barrier is provided with a first via hole, the second fire-barrier is provided with a second via hole, the auxiliary dry-type transformer, the control assembly and the battery pack are connected by a cable, and the first via hole and the second via hole are provided for the cable to pass through.

3. The low-voltage cabinet of claim 1, further comprising a voltage transformer mounted within any one of the first, second, and third chambers.

4. The low-voltage cabinet of claim 1, wherein the control assembly is mounted in the second cavity, the battery pack is mounted in the third cavity, the cabinet body comprises a first mounting piece, a second mounting piece, a third mounting piece and a main frame, the first mounting piece is connected to the main frame and is located in the first cavity, and the auxiliary dry-type transformer is mounted on the first mounting piece; the second mounting piece is connected to the main frame and is positioned in the second cavity, and the control assembly is mounted on the second mounting piece; the third mounting piece is connected to the main frame and located in the third cavity, and the storage battery pack is mounted on the third mounting piece.

5. The low-voltage cabinet according to claim 4, wherein the main frame includes a plurality of columns arranged in an up-down direction and a plurality of main beams arranged in a horizontal direction, the plurality of columns and the plurality of main beams being connected to each other to form the main frame; the stand is followed the length direction of stand is equipped with a plurality of intervals and sets up first mounting hole, the stand pass through first mounting hole with first installed part the second installed part with the third installed part is connected.

6. The low-voltage cabinet according to claim 4, wherein the first mounting member comprises a first side beam, a second side beam and a first mounting beam, which are arranged along a horizontal direction, the first side beam and the second side beam are respectively connected to two opposite sides of the main frame, the first side beam is provided with a plurality of second mounting holes arranged at intervals along a length direction of the first side beam, the second side beam is provided with a plurality of third mounting holes arranged at intervals along a length direction of the second side beam, and the first mounting beam is respectively connected between the first side beam and the second side beam through the second mounting holes and the third mounting holes, and the auxiliary dry-type transformer is mounted on the first mounting beam.

7. The low-voltage cabinet according to claim 4, wherein the second mounting member includes a third side beam, a fourth side beam and a second mounting beam that are disposed along a horizontal direction, the third side beam and the fourth side beam are respectively connected to opposite sides of the main frame, the third side beam is provided with a plurality of fourth mounting holes that are disposed at intervals along a length direction of the third side beam, the fourth side beam is provided with a plurality of fifth mounting holes that are disposed at intervals along a length direction of the fourth side beam, the second mounting beam is connected between the third side beam and the fourth side beam through the fourth mounting holes and the fifth mounting holes, respectively, and at least one of the UPS control main unit, the circuit breaker and the fuse group is mounted to the second mounting beam.

8. The low-voltage cabinet according to claim 4, wherein the third mounting member comprises a fifth side beam, a sixth side beam and a third mounting beam which are arranged along a horizontal direction, the fifth side beam and the sixth side beam are respectively connected to two opposite sides of the main frame, the fifth side beam is provided with a plurality of sixth mounting holes which are arranged at intervals along a length direction of the fifth side beam, the sixth side beam is provided with a plurality of seventh mounting holes which are arranged at intervals along a length direction of the sixth side beam, the third mounting beam is respectively connected between the fifth side beam and the sixth side beam through the sixth mounting holes and the seventh mounting holes, and the storage battery pack is mounted on the third mounting beam.

9. A photovoltaic box-type substation, characterized by comprising a low-voltage cabinet according to any one of claims 1 to 8.