CN219778815U - Multi-fuse mounting structure, cabinet and converter - Google Patents

Abstract

The utility model provides a multi-fuse mounting structure, a cabinet body and a converter. The multi-fuse mounting structure comprises a fixing assembly and a plurality of conducting bar assemblies, wherein the conducting bar assemblies are distributed at intervals along a first horizontal direction; the conducting bar assembly comprises a first conducting bar and a second conducting bar which are respectively fixed through the fixing assembly; the first conducting bar and the second conducting bar comprise plate bodies extending along the second horizontal direction, the plate bodies of the first conducting bar and the plate bodies of the second conducting bar are arranged along the upper and lower directions at intervals, a plurality of mounting positions for mounting the fuse are sequentially arranged between the plate bodies of the first conducting bar and the plate bodies of the second conducting bar along the second horizontal direction, and the plate bodies of the first conducting bar and the plate bodies of the second conducting bar are respectively electrically connected with the fuse. The upper end and the lower end of any fuse are reliably supported, so that the condition that only one end of the fuse is fixed to form a cantilever is avoided; and the conducting bar assemblies are distributed at intervals along the first horizontal direction, so that compact installation of a plurality of groups of fuses can be realized.

Description

Multi-fuse mounting structure, cabinet and converter

Technical Field

The utility model relates to the technical field of converters, in particular to a multi-fuse mounting structure, a cabinet body and a converter.

Background

A fuse is a current protector that opens an electrical circuit in such a manner that, for example, heat generated by itself melts a melt after a current exceeds a prescribed value for a certain period of time. The fuse is widely applied to high-low voltage distribution systems, control systems and electric equipment and used as a protector for short circuit and overcurrent. In some occasions with larger current, such as a converter, a plurality of fuses connected in parallel are generally connected in series to a circuit, and each phase of circuit needs to be subjected to current protection, so that more fuses, installation and conductive structures thereof need to be laid out in a limited space. In the related art, in order to reduce the installation space occupation of a plurality of fuses, set up the fuse into only one end and support, cause the fuse self to form cantilever structure in the supporting point department, the fuse self is easy to break in the supporting point department, is difficult to satisfy the reliability demand.

Disclosure of Invention

The present utility model aims to solve the problem of how to realize reliable mounting of a plurality of fuses in a limited space in the related art to a certain extent.

In order to solve at least one aspect of the above problems, at least to some extent, the present utility model provides, in a first aspect, a multi-fuse mounting structure including a fixing assembly and a plurality of conductive bar assemblies, the plurality of conductive bar assemblies being spaced apart along a first horizontal direction;

the conducting bar assembly comprises a first conducting bar and a second conducting bar which are respectively fixed by the fixing assembly; the first conducting bar and the second conducting bar comprise plate bodies extending along a second horizontal direction, the plate bodies of the first conducting bar and the plate bodies of the second conducting bar are arranged along an upper direction and a lower direction at intervals, a plurality of mounting positions for mounting the fuse are sequentially arranged between the plate bodies of the first conducting bar and the plate bodies of the second conducting bar along the second horizontal direction, and the plate bodies of the first conducting bar and the plate bodies of the second conducting bar are respectively electrically connected with the fuse.

Optionally, at least one of the first conductive row and the second conductive row is correspondingly connected with a flexible conductive connection structure, and is connected with an external circuit through the flexible conductive connection structure.

Optionally, the first conductive strip and the second conductive strip are respectively provided with a first connection portion and a second connection portion for connection with an external circuit, the first connection portion is located at a first end of all the mounting positions along the second horizontal direction, and the second connection portion is located at a second end of all the mounting positions along the second horizontal direction.

Optionally, the first conductive bar is integrally in a first U-shaped structure, the first U-shaped structure includes a first side plate and a second side plate that are oppositely arranged along an up-down direction, the first side plate is used for installing the fuse, and the second side plate is provided with a first connection part for connecting with an external circuit; the first connecting part is positioned at the tail end of the second side plate along the second horizontal direction; the length of the second side plate of each conducting bar assembly along the first horizontal direction is sequentially reduced, and the projections of the first connecting parts are not overlapped with each other along the direction in which the length is sequentially reduced;

and/or, the second conducting bar is of an integrated bending structure, the second conducting bar comprises a first bending part which is arranged at an included angle with the plate body of the second conducting bar, and the tail end of the first bending part is provided with a second connecting part which is used for being connected with an external circuit.

Optionally, the first conductive bar is an integrally bent first U-shaped structure;

or, the first conducting bar comprises a first conducting bar body and a switching bar which are connected, the first conducting bar body is used for forming a plate body of the first conducting bar, the first connecting part is arranged on the switching bar, and the first conducting bar body and/or the switching bar is arranged into a bending structure.

Optionally, the first conductive bar is located below the second conductive bar; the second conductive row further comprises a second bending part opposite to the first bending part along the second horizontal direction, and at least one end of the second conductive row where the second bending part is located is connected with the fixing assembly;

and/or, at least the bottom plate of the first U-shaped structure on the first conductive row is connected with the fixing assembly.

Optionally, the fixing assembly includes a fixing plate extending along the first horizontal direction, the fixing plate is located at one end of the conducting bar assembly along the second horizontal direction, a plurality of the first conducting bars are mounted on the fixing plate, and a plurality of the second conducting bars are mounted on the fixing plate;

or, the fixing assembly comprises a plurality of fixing beams extending along the first horizontal direction, wherein at least two fixing beams are positioned at one end of the conducting bar assembly along the second horizontal direction, a plurality of first conducting bars are mounted on one fixing beam positioned at the one end, and a plurality of second conducting bars are mounted on the other fixing beam positioned at the one end.

In a second aspect, the present utility model provides a cabinet comprising a multi-fuse mounting structure as described in the first aspect, wherein the fixing component of the multi-fuse mounting structure is disposed in the cabinet body.

Optionally, the cabinet further includes a fan mounted to the cabinet body, the fan for driving air through the multiple fuse mounting structure.

In a third aspect, the utility model provides a converter comprising a control cabinet, the control cabinet being a cabinet body as described in the second aspect above.

Compared with the prior art, in the multi-fuse mounting structure, the cabinet body and the converter, the first conductive bar and the second conductive bar of the conductive bar assembly respectively comprise the plate bodies extending along the second horizontal direction, a plurality of mounting positions for mounting the fuses are sequentially arranged between the upper plate body and the lower plate body along the second horizontal direction, and when the first conductive bar and the second conductive bar are respectively fixed through the fixing assembly, the fixation of the fuses between the upper plate body and the lower plate body can be realized; for any fuse, the upper end and the lower end of the fuse are reliably supported, so that the problem that only one end of the fuse is fixed to form a cantilever is avoided, and the stability of supporting the fuse is high; in addition, the plate body extends along the second horizontal direction, the first conducting bar is provided with a first connecting part used for being connected with an external circuit, and the second conducting bar is provided with a second connecting part used for being connected with the external circuit, so that the connection of a plurality of fuses between the first conducting bar and the second conducting bar in the circuit can be realized, and the circuit is simple in structure and strong in practicability; and moreover, the plurality of conducting bar assemblies are distributed at intervals along the first horizontal direction, so that compact installation of a plurality of groups of fuses can be realized. The utility model can realize compact installation of a plurality of groups of fuses in a limited space, and has reliable installation structure and high stress stability.

Drawings

FIG. 1 is a schematic diagram of a multi-fuse mounting structure in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second conductive strip according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a first conductive strip including a first conductive strip body and a transition strip according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a cabinet according to another embodiment of the utility model;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is another schematic view of the cabinet shown in FIG. 4;

FIG. 7 is a partial enlarged view at B in FIG. 6;

fig. 8 is a schematic diagram of conductive paths between a first conductive strip and a second conductive strip through fuses in an embodiment of the present utility model.

Reference numerals illustrate:

1-a fixed assembly; 11-fixing beams; 12-fixing blocks; a 2-conductor bar assembly; 21-a first conductive bar; 211-a first conductive bar body; 212-switching rows; 22-a second conductive bar; 221-a first fold; 222-a second fold; 201-a first side plate; 202-a second side plate; 203-a bottom plate; 204-a first connection; 205-a second connection; 206-a first mounting hole; 3-a flexible conductive connection structure; 31-a first flexible conductive connection structure; 32-a second flexible conductive connection structure; a 4-fuse; 5-a cabinet body; 6-a fan.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

The Z-axis in the drawing represents vertical, i.e., up-down position, and the positive direction of the Z-axis (i.e., the arrow of the Z-axis points) represents up, and the negative direction of the Z-axis (i.e., the direction opposite to the positive direction of the Z-axis) represents down; the X-axis in the drawing indicates a horizontal direction and is designated as a left-right position, and the positive direction of the X-axis (i.e., the arrow of the X-axis is directed) indicates a right side, and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) indicates a left side; the Y-axis in the drawing indicates the front-back position, and the positive direction of the Y-axis (i.e., the arrow of the Y-axis is directed) indicates the front side, and the negative direction of the Y-axis (i.e., the direction opposite to the positive direction of the Y-axis) indicates the rear side; it should also be noted that the foregoing Z-axis, Y-axis, and X-axis are meant to be illustrative only and not indicative or implying that the apparatus or component in question must be oriented, configured or operated in a particular orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1, an embodiment of the present utility model provides a multi-fuse mounting structure, which includes a fixing assembly 1 and a plurality of conductive bar assemblies 2, wherein the plurality of conductive bar assemblies 2 are distributed at intervals along a first horizontal direction;

the conductive bar assembly 2 includes a first conductive bar 21 and a second conductive bar 22 fixed by the fixing assembly 1, respectively; the first conductive strip 21 and the second conductive strip 22 each include a plate body extending along the second horizontal direction, the plate bodies of the first conductive strip 21 and the plate bodies of the second conductive strip 22 are arranged at intervals along the up-down direction, a plurality of mounting positions for mounting the fuse 4 are sequentially arranged between the plate bodies of the first conductive strip 21 and the plate bodies of the second conductive strip 22 along the second horizontal direction, and the plate bodies of the first conductive strip 21 and the plate bodies of the second conductive strip 22 are respectively electrically connected with the fuse 4.

It should be noted that the present utility model will be described in the present description with reference to the case body 5 of the control case in which the multiple fuse mounting structure is used to mount the multiple fuses 4 to the current transformer, but it should be understood that the present utility model can be used in other locations or situations.

As shown in fig. 1, 4 and 5, the specific structure of the fixing assembly 1 is not limited, and for example, it includes a plurality of insulating blocks, for example, the first conductive bar 21 is fixed to the rear end sidewall of the cabinet body 5 by one insulating block, and the second conductive bar 22 is fixed to the rear end sidewall of the cabinet body 5 by another insulating block, which will not be described in detail herein.

In addition, the specific number of the busbar assembly 2 is determined according to actual requirements, specifically, according to the number of power phases, and when it is used for a current transformer, the number of the busbar assembly 2 is set to three.

As shown in fig. 1 to 3, the structure of the first conductive bar 21 and the second conductive bar 22 for installing the fuse 4 at the installation position is determined according to the structure form of the fuse 4, and the present utility model will be described in this specification by taking the fuse 4 as a two-terminal nut square fuse, at this time, the first conductive bar 21 and the second conductive bar 22 are provided with the first installation hole 206 for installing the fuse 4 at each installation position, and when the two-terminal nut square fuse is installed between the first conductive bar 21 and the second conductive bar 22, the conductive ends of the fuse 4 are located at the upper and lower ends, and the first conductive bar 21 and the second conductive bar 22 are respectively contacted with and electrically connected with the upper and lower ends of the fuse 4. However, the present utility model is not limited thereto, and for example, the conductive terminals of the fuse 4 may not be located at the upper and lower ends, and the first conductive bar 21 and the second conductive bar 22 may be electrically connected to the conductive terminals through sub-conductive plates.

In this way, in the present utility model, the first conductive strip 21 and the second conductive strip 22 of the conductive strip assembly 2 each include a plate body extending along the second horizontal direction, and a plurality of mounting positions for mounting the fuses 4 are sequentially arranged between the upper and lower plate bodies along the second horizontal direction, and when the first conductive strip 21 and the second conductive strip 22 are respectively fixed by the fixing assembly 1, the fixation of the plurality of fuses 4 between the upper and lower plate bodies can be realized; for any fuse 4, the upper end and the lower end of the fuse 4 are reliably supported, so that the condition that only one end of the fuse 4 is fixed to form a cantilever is avoided, and the stability of supporting the fuse 4 is high; in addition, the board body extends along the second horizontal direction, the first conductive bar 21 is provided with a first connecting part 204 for connecting with an external circuit, and the second conductive bar 22 is provided with a second connecting part 205 for connecting with the external circuit, so that the connection between the plurality of fuses 4 between the first conductive bar 21 and the second conductive bar 22 in the circuit can be realized, the structure is simple, and the practicability is strong; and, a plurality of conducting bar assemblies 2 are along first horizontal direction interval distribution, can realize the compact installation of multiunit fuse 4, and mounting structure is compact, and the atress stability is high.

As shown in fig. 4 and 5, at least one of the first conductive bar 21 and the second conductive bar 22 is optionally connected with a flexible conductive connection structure 3, and connected with an external circuit through the flexible conductive connection structure 3.

Illustratively, the flexible conductive connection structure 3 includes a first flexible conductive connection structure 31 and a second flexible conductive connection structure 32, the second conductive strip 22 of the conductive strip assembly 2 is electrically connected to the circuit breaker through the second flexible conductive connection structure 32, the first conductive strip 21 of the conductive strip assembly 2 is electrically connected to the reactor through the first flexible conductive connection structure 31, at this time, the conductive strip assemblies 2 are arranged in three, and each conductive strip assembly 2 is respectively connected in series in a phase circuit.

The flexible conductive connection structure 3 may be a flexible copper foil, a flexible copper braid, a flexible copper wire, or the like, which may employ a related art.

In this way, the flexible characteristic of the flexible conductive connection structure 3 can adapt to the installation error of the relative positions of the components connected at the two ends of the flexible conductive connection structure, and the vibration between the components connected at the two ends of the flexible conductive connection structure can be buffered to a certain extent. For example, the second conductive bar 22 is connected with the circuit breaker through the second flexible conductive connection structure 32, so that the accuracy requirement of the installation position of the second conductive bar 22 and the circuit breaker can be reduced, the first conductive bar 21 is connected with the reactor through the first flexible conductive connection structure 31, the influence of vibration of the reactor on the first conductive bar 21 can be reduced, and the reliability and stability of the fuse 4 are improved.

Of course, in other embodiments, the flexible conductive connection structure 3 may be connected by other rigid structures, such as an intermediate conductive bar, where the flexible conductive connection structure 3 cannot achieve a good effect of damping and reducing accuracy requirements, and the following description will illustrate the present utility model by taking the case that the flexible conductive connection structure 3 includes the first flexible conductive connection structure 31 and the second flexible conductive connection structure 32 as an example.

Alternatively, the first conductive bar 21 and the second conductive bar 22 are provided with a first connection portion 204 and a second connection portion 205, respectively, for connection to an external circuit, and the lengths of conductive paths of the second connection portion 205 and the first connection portion 204, which are conductive through any fuse 4, are equal.

Illustratively, the first connection portion 204 is configured to connect with the first flexible conductive connection structure 31 in the above-described embodiment, and the second connection portion 205 is configured to connect with the second flexible conductive connection structure 32.

Specifically, for any fuse 4, the length of the conductive path is the sum of the lengths of three conductive segments, the first conductive segment corresponding to the portion between the second connection portion 205 of the second conductive row 22 and the fuse 4, the second conductive segment corresponding to the portion between the two conductive ends of the fuse 4 itself, and the third conductive segment corresponding to the portion between the first connection portion 204 of the first conductive row 21 and the fuse 4.

In this way, in all the fuses 4 correspondingly connected with the same conductive bar assembly 2, the lengths of the conductive paths corresponding to any fuse 4 are equal, and the currents corresponding to any fuse 4 are equal, so that the currents can be distributed among the fuses 4, and a good circuit protection effect can be achieved.

Specifically, the first connection portion 204 is located at a first end of all mounting positions in the second horizontal direction, and the second connection portion 205 is located at a second end of all mounting positions in the second horizontal direction.

Illustratively, the plate bodies of the first conductive strip 21 and the second conductive strip 22 each include a first end and a second end along the first horizontal direction, and the second connection portion 205 of the second conductive strip 22 is located at a first end (e.g., a front end in the drawing) along the second horizontal direction at all mounting positions (the first mounting holes 206), and the first connection portion 204 of the first conductive strip 21 is located at a second end (e.g., a rear end in the drawing) along the second horizontal direction at all mounting positions. Of course, when the second conductive bars 22 and the first conductive bars 21 are provided in a bent form described later, the second connection portions 205 may be provided on the bent portions, which will not be described in detail herein.

At this time, referring to fig. 8, schematic diagrams of conductive paths between the first conductive row 21 and the second conductive row 22 through the respective fuses 4 are schematically shown with broken lines and dashed lines, respectively. At this time, the lengths of the conductive paths flowing through any fuse 4 between the second connection portion 205 and the first connection portion 204 are equal, so as to obtain a better current sharing effect.

As shown in fig. 1 and 3, alternatively, the first conductive bar 21 has a first U-shaped structure as a whole, the first U-shaped structure including a first side plate 201 and a second side plate 202 disposed opposite to each other in the up-down direction, the first side plate 201 being for mounting the fuse 4, the second side plate 202 being provided with a first connection portion 204 for connection with an external circuit;

the first connecting portion 204 is located at the end of the second side plate 202 along the second horizontal direction; the second side plates 202 of each of the conductive bar assemblies 2 are sequentially reduced in length along the first horizontal direction, and the projections of the first connection portions 204 are not overlapped with each other along the direction in which the lengths are sequentially reduced. It should be appreciated that the length direction of the second side plate 202 coincides with the second horizontal direction.

When the first conductive strip 21 has the first U-shaped structure as a whole, the mounting operation of the fuse 4 at the first side plate 201 is facilitated, the connection operation with an external circuit at the first connection portion 204 of the second side plate 202 is facilitated, for example, the connection of the second flexible connection structure to the first connection portion 204 is facilitated.

As shown in fig. 1, 4 and 5, for example, three conductive bar assemblies 2 are respectively connected in series in the a-phase, B-phase and C-phase circuits from right to left, the first connection portion 204 provided on the second side plate 202 may be connected to an external circuit through the first flexible connection structure of the above embodiment for any conductive bar assembly 2, and for the conductive bar assembly 2 connected in series in the a-phase circuit, the center of the first flexible connection structure is located on the opposite side of the X-axis of the first connection portion 204, at this time, if the lengths of the second side plates 202 are identical, the conductive bar assemblies 2 connected in series in the B-phase and C-phase circuits may contact the first flexible connection structure connected in series to the conductive bar assemblies 2 connected in the a-phase circuit, so that the a-phase circuit is connected to the B-phase or C-phase circuit. In this case, the lengths of the second side plates 202 of the three conductive bar assemblies 2 are gradually reduced from right to left, and the projections of the respective first connection portions 204 from right to left do not coincide with each other, so that the first flexible connection structure can be prevented from communicating with the second side plates 202 of the different conductive bar assemblies 2. Of course, at this time, an insulating structure may be provided on the second flexible connection structure, which will not be described in detail herein. In this case, the second side plates 202 may be located at the same height or at different heights. For example, the first conductive bar 21 is located below the second conductive bar 22, and the height of the second side plate 202, which is longer in length, may be set lower.

Further, the first conductive strip 21 is a first U-shaped structure of an integral bent type. Specifically, the first U-shaped structure is formed by bending an elongated conductive plate (shown in this embodiment).

As shown in fig. 1 and 3, further, the first conductive strip 21 includes a first conductive strip body 211 and a transfer strip 212 connected to each other, the first conductive strip body 211 is used for forming a plate body of the first conductive strip 21, the first connection portion 204 is disposed on the transfer strip 212, and the first conductive strip body 211 and/or the transfer strip 212 are configured in a bent structure.

Fig. 3 shows a case where the first conductive bar body 211 and the transfer bar 212 are both provided in a bent structure, and both are L-shaped. At this time, the first conductive bar body 211 and the switching bar 212 can be made of conductive plates with shorter length, which is convenient for manufacturing and shaping and purchasing of raw materials, and when the lengths of the second side plates 202 are inconsistent, the sizes of the first conductive bar body 211 and the switching bar 212 are inconsistent to meet the use requirement, if the second side plates 202 are deformed and need to be adjusted, only the switching bar 212 is detached or not detached and the adjustment is performed.

Of course, the first conductive bar body 211 or the transfer bar 212 itself may also be provided as a smaller first U-shaped structure, which is not limited thereto and will not be described in detail herein.

In the above embodiment, further, at least the bottom plate 203 of the first U-shaped structure on the first conductive strip 21 is connected to the fixing assembly 1.

At this time, the first side plate 201 and the second side plate 202 are respectively located at two sides of the bottom plate 203, and the gravity of the first side plate 201 and the second side plate 202 is directly transferred to the fixing assembly 1 at the bottom plate 203, so that the stress reliability of the first side plate 201 and the second side plate 202 can be ensured to a certain extent.

As shown in fig. 1 and 2, alternatively, the second conductive strip 22 is an integral bent structure, the second conductive strip 22 includes a first bent portion 221 disposed at an angle with respect to a plate body of the second conductive strip 22, and a second connection portion 205 for connecting with an external circuit is disposed at an end of the first bent portion 221.

In this way, the second connecting portion 205 may be spaced from the board body of the second conductive bar 22 for mounting the fuse 4 in the up-down direction by the first bending portion 221, so that the connection operation of the fuse 4 is facilitated at the board body of the second conductive bar 22, and the connection operation of the second flexible connection structure, for example, is facilitated at the second connecting portion 205.

As shown in fig. 1 and 2, further, the second conductive strip 22 further includes a second bending portion 222 opposite to the first bending portion 221 along the second horizontal direction, and at least one end of the second conductive strip 22 where the second bending portion 222 is located is connected to the fixing component 1.

At this time, the first conductive strip 21 may be located below the second conductive strip 22, and the bottom plate 203 of the first U-shaped structure of the first conductive strip 21 and the second bent portion 222 of the second conductive strip 22 are located at the same end in the second horizontal direction and are fixed by the fixing component 1.

Alternatively, the fixing assembly 1 includes a fixing plate extending in the first horizontal direction, the fixing plate being located at one end of the conductive bar assembly 2 in the second horizontal direction, a plurality of first conductive bars 21 being mounted to the fixing plate, and a plurality of second conductive bars 22 being mounted to the fixing plate (not shown in this embodiment).

At this time, as an alternative use, the fixing plate may be mounted to a predetermined position after the mounting of the plurality of conductive bar assemblies 2 on the fixing plate is effected, thereby effecting the integral mounting of the plurality of fuses 4. The fixing plate may be provided as an insulating plate or partially as an insulating structure.

As shown in fig. 1, the fixing assembly 1 may alternatively include a plurality of fixing beams 11 extending in a first horizontal direction, wherein at least two fixing beams 11 are located at one end of the conductive bar assembly 2 in a second horizontal direction, wherein a plurality of first conductive bars 21 are mounted on one fixing beam 11 located at the one end, and a plurality of second conductive bars 22 are mounted on the other fixing beam 11 located at the one end.

At this time, the fixing beam 11 may be made of an insulating material, the fixing beam 11 may be fixed at a predetermined position by the fixing blocks 12 at a plurality of positions, and the fixing blocks 12 may be made of a metal material, for example, for any fixing beam 11, both ends thereof in the first horizontal direction are provided with the fixing blocks 12.

It should be understood that in some embodiments, the fixing beams 11 may be connected by a connecting beam (not shown in this embodiment), and the connecting beam may be fixed by using the fixing blocks 12, and the fixing beams 11 may be further arranged in multiple groups along the second horizontal direction, which will not be described in detail herein.

As shown in fig. 4 to 7, a further embodiment of the present utility model provides a cabinet body including a cabinet body 5 and the multi-fuse mounting structure of the above embodiment, the fixing assembly 1 of the multi-fuse mounting structure being disposed in the cabinet body 5.

For example, a multi-fuse mounting structure is provided through the rear side wall of the cabinet body 5 of the fixing assembly 1.

Optionally, the cabinet further includes a fan 6, the fan 6 is mounted on the cabinet body 5, and the fan 6 is used for driving air to flow through the multi-fuse mounting structure.

For example, cavities extending up and down are formed in the cabinet body 5, the multi-fuse mounting structure is mounted in the rear end cavity through the fixing component 1, for example, the fixing beam 11 is mounted on the rear end main frame of the cabinet body 5, the fan 6 is mounted on the rear end side wall of the cabinet body 5 and is located above the multi-fuse mounting structure, for example, and the air inlet is formed in the bottom of the rear end cavity. At this time, the fan 6 can drive the air flow in the rear end chamber, thereby realizing heat dissipation to the fuse 4.

Still another embodiment of the present utility model provides a current transformer, which includes a control cabinet, where the control cabinet is a cabinet body of the foregoing embodiment.

At this time, the converter may further include a grid-connected cabinet and a power cabinet (the control cabinet, the grid-connected cabinet and the power cabinet may be set to an integrated or split structure), the circuit breaker may be disposed in the control cabinet or the grid-connected cabinet, the power cabinet and the grid-connected cabinet may be disposed on the left and right sides of the control cabinet, respectively, at this time, the first connection portion 204 of the first conductive strip 21 may be connected to the reactor (may further include other conductive wires therebetween) through, for example, a first flexible connection structure, and the second connection portion 205 of the second conductive strip 22 may be connected to the circuit breaker (may further include other conductive wires therebetween) through, for example, a second flexible connection structure. The converter may be used in photovoltaic power plants, wind power plants, etc., without limitation.

Thus, the fuse 4 is installed in the control cabinet, and the fuse 4 is far away from a heat source such as a reactor, so that the rated current value of the fuse 4 can be prevented from being influenced by the excessive temperature outside to a certain extent, the aging of the fuse 4 is accelerated, and the service life of the fuse 4 can be prolonged to a certain extent.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, descriptions of the terms "embodiment," "one embodiment," "some embodiments," "illustratively," and "one embodiment" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or implementation of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same examples or implementations. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or implementations.

The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. As such, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. The multi-fuse mounting structure is characterized by comprising a fixing assembly (1) and a plurality of conducting bar assemblies (2), wherein the conducting bar assemblies (2) are distributed at intervals along a first horizontal direction;

the conducting bar assembly (2) comprises a first conducting bar (21) and a second conducting bar (22) which are respectively fixed by the fixing assembly (1); the first conducting bar (21) and the second conducting bar (22) comprise plate bodies extending along a second horizontal direction, the plate bodies of the first conducting bar (21) and the plate bodies of the second conducting bar (22) are arranged at intervals along the upper and lower directions, a plurality of mounting positions for mounting the fuse (4) are sequentially arranged between the plate bodies of the first conducting bar (21) and the plate bodies of the second conducting bar (22) along the second horizontal direction, and the plate bodies of the first conducting bar (21) and the plate bodies of the second conducting bar (22) are respectively electrically connected with the fuse (4).

2. A multi-fuse mounting structure as claimed in claim 1, characterized in that at least one of the first and second conductive rows (21, 22) is correspondingly connected with a flexible conductive connection structure (3) and is connected with an external circuit via the flexible conductive connection structure (3).

3. A multi-fuse mounting structure as claimed in claim 1, wherein said first conductive strip (21) and said second conductive strip (22) are provided with a first connection portion (204) and a second connection portion (205) for connection to an external circuit, respectively, said first connection portion (204) being located at first ends of all said mounting positions in said second horizontal direction, and said second connection portion (205) being located at second ends of all said mounting positions in said second horizontal direction.

4. A multiple fuse mounting structure in accordance with any one of claims 1 to 3, wherein the first conductive strip (21) has a first U-shaped structure as a whole, the first U-shaped structure including a first side plate (201) and a second side plate (202) disposed opposite to each other in a vertical direction, the first side plate (201) being for mounting the fuse (4), the second side plate (202) being provided with a first connection portion (204) for connection with an external circuit; along the second horizontal direction, the first connecting part (204) is positioned at the tail end of the second side plate (202); the length of the second side plate (202) of each conducting bar assembly (2) is sequentially reduced along the first horizontal direction, and the projections of the first connecting parts (204) are not overlapped along the direction of sequentially reducing the length;

and/or, the second conducting bar (22) is of an integrated bending structure, the second conducting bar (22) comprises a first bending part (221) which is arranged at an included angle with the plate body of the second conducting bar (22), and the tail end of the first bending part (221) is provided with a second connecting part (205) which is used for being connected with an external circuit.

5. A multi-fuse mounting structure in accordance with claim 4, wherein said first conductive row (21) is an integrally bent first U-shaped structure;

or, the first conducting bar (21) comprises a first conducting bar body (211) and a switching bar (212) which are connected, the first conducting bar body (211) is used for forming a plate body of the first conducting bar (21), the first connecting part (204) is arranged on the switching bar (212), and the first conducting bar body (211) and/or the switching bar (212) are/is arranged into a bending structure.

6. A multi-fuse mounting structure as claimed in claim 4, wherein the first conductive row (21) is located below the second conductive row (22); the second conductive row (22) further comprises a second bending part (222) opposite to the first bending part (221) along the second horizontal direction, and at least one end of the second conductive row (22) where the second bending part (222) is positioned is connected with the fixing assembly (1);

and/or, at least the bottom plate (203) of the first U-shaped structure on the first conductive row (21) is connected with the fixing assembly (1).

7. A multiple fuse mounting structure in accordance with any one of claims 1 to 3, wherein the fixing assembly (1) comprises a fixing plate extending in the first horizontal direction, the fixing plate being located at one end of the conductive bar assembly (2) in the second horizontal direction, a plurality of the first conductive bars (21) being mounted to the fixing plate, and a plurality of the second conductive bars (22) being mounted to the fixing plate;

or, the fixing assembly (1) comprises a plurality of fixing beams (11) extending along the first horizontal direction, wherein at least two fixing beams (11) are positioned at one end of the conducting bar assembly (2) along the second horizontal direction, wherein a plurality of first conducting bars (21) are installed on one fixing beam (11) positioned at one end, and a plurality of second conducting bars (22) are installed on the other fixing beam (11) positioned at one end.

8. A cabinet comprising a cabinet body (5) and a multi-fuse mounting structure according to any one of claims 1 to 7, the fixing assembly (1) of the multi-fuse mounting structure being arranged in the cabinet body (5).

9. A cabinet according to claim 8, further comprising a fan (6), the fan (6) being mounted to the cabinet body (5), the fan (6) being adapted to drive air through the multiple fuse mounting structure.

10. A current transformer comprising a control cabinet, the control cabinet being a cabinet according to any one of claims 8 to 9.