Power conversion equipment and electrical equipment

Abstract

The utility model relates to the technical field of switching devices, and discloses a power supply conversion device and an electrical equipment, the power supply conversion device comprises a housing which is internally provided with a separator plate which divides the inner cavity of the housing into a first chamber and a second chamber, the partition plate is provided with a first area close to the first end of the shell and a second area close to the second end, opposite to the first end, of the shell. The power board is installed in the first area of the partition board and located in the first cavity, a signal terminal is arranged on the power board, and an insertion port of the signal terminal is located in the side wall of the first end of the shell; the SCR modules are installed in the second area of the partition plate and located in the first cavity, and the SCR modules are arranged between the first end of the shell and the second end of the shell in parallel; the multiple copper bar pairs are installed at the second end of the shell in parallel and electrically connected with the SCR modules in a one-to-one mode, and the length extension direction of the copper bar pairs extends linearly; and the radiator is installed in the second area of the partition plate and located in the second cavity, and the SCR module is fixedly connected with the radiator.

Description

TECHNICAL FIELD

[0001] The utility model relates to switch device technical field especially relates to a power conversion equipment and electrical equipment. BACKGROUND

[0002] In the new energy industry, STS static transfer switch is a high-tech power conversion equipment, which can realize seamless switching between two power supplies and ensure normal operation and continuous power supply of equipment. In many important application scenarios such as data centers, hospitals, financial centers, etc., the reliability and stability of power supply are very high, so STS static transfer switch is needed to ensure stable power supply.

[0003] The current power conversion equipment is provided with a silicon controlled module and a power board in the case, and the silicon controlled module and the power board are fixed in the case through a supporting plate. The copper bar related to the power conversion input and output is stretched out of the case and fastened to the silicon controlled module. Since some components cannot be integrated, for example, the signal terminal and the copper bar are arranged on the same side, and the signal terminal needs to be connected to the power board, it needs to be separately installed at a specified position and then wired, so it needs to leave enough operation space for wiring of each component.

[0004] Due to the large space occupied by the internal structure of the case, the volume of the case is increased, and the space required for installing the power conversion equipment in the host device is also large. When the space of the host device is limited, some larger power conversion equipment cannot leave enough installation wiring and maintenance space in the limited space.

[0005] Therefore, it is urgent to improve the integration of the internal structure of the power conversion equipment to reduce the volume so that it can be adapted to more sizes of host devices. UTILITY MODEL CONTENTS

[0006] The utility model provides a kind of power conversion equipment to solve the technical problem of low integration and large volume of internal structure of power conversion equipment.

[0007] To solve the above technical problems, the utility model embodiment provides a kind of power conversion equipment, comprising:

[0008] Shell, the shell is equipped with partition, the partition divides the inner chamber of the shell into first chamber and second chamber, and the partition has first area close to the first end of the shell and second area close to the second end of the shell opposite to the first end of the shell;

[0009] Power board, the power board is installed in the first area of the partition, and located in the first chamber, the power board is equipped with signal terminal, and the plug-in interface of the signal terminal is located on the side wall of the first end of the shell;

[0010] a plurality of SCR modules, the plurality of SCR modules are installed in the second area of the partition plate and located in the first chamber, and the plurality of SCR modules are arranged in parallel between the first end of the shell and the second end of the shell;

[0011] a plurality of copper pairs, the plurality of copper pairs are installed in parallel at the second end of the shell and electrically connected to the SCR modules one by one, and the length of the copper pairs extends in a straight line;

[0012] a radiator, the radiator is installed in the second area of the partition plate and located in the second chamber, and the SCR modules are fixedly connected to the radiator.

[0013] Further, the copper pairs include first copper pairs and second copper pairs, and the first copper pairs and the second copper pairs of the plurality of copper pairs are alternately and spacedly arranged;

[0014] the SCR modules include input ends and output ends, one end of the first copper pairs is electrically connected to the input ends, and the other end extends out of the end wall of the second end of the shell, one end of the second copper pairs is electrically connected to the output ends, and the other end extends out of the end wall of the second end of the shell.

[0015] Further, an insulating column is arranged between each of the copper pairs and the partition plate, one end of the insulating column is fixedly connected to the copper pairs, and the other end is fixedly connected to the partition plate.

[0016] Further, a plurality of insulating columns are arranged between each of the copper pairs and the partition plate.

[0017] Further, a first avoiding hole is arranged on the end wall of the first end of the shell to avoid the plug-in interface of the signal terminal.

[0018] Further, the signal terminal is a plurality of signal terminals, and the plurality of signal terminals are arranged in a straight line.

[0019] Further, the radiator includes a plurality of fins, the thickness of the fins is 1.3mm-1.5mm, and the distance between two adjacent fins is 4mm-4.5mm.

[0020] Further, a first ventilation hole is arranged on the end wall adjacent to the second chamber of the first end of the shell, and a second ventilation hole opposite to the first ventilation hole is arranged on the end wall adjacent to the second chamber of the second end of the shell.

[0021] The power conversion device further includes a cooling fan, the cooling fan is arranged in the first area of the partition plate and located in the second chamber, and the cooling fan faces the radiator.

[0022] Further, the number of the cooling fan is a plurality of cooling fans.

[0023] The utility model embodiment further provides an electrical equipment comprising the power conversion equipment.

[0024] The utility model embodiment has the advantages of:

[0025] The power board is arranged in the first area of the partition plate, the plurality of SCR modules and the plurality of copper pairs are arranged in the second area of the partition plate, the plurality of SCR modules are arranged in a line along the length direction of the shell, the plurality of copper pairs are parallelly arranged at the second end of the shell and are electrically connected with the SCR modules at one end, the plurality of copper pairs extend in a straight line and are parallelly arranged, the internal structure of the shell is more neat and compact, and the neat and compact arrangement is also more convenient for maintenance.

[0026] Therefore, the signal terminal is directly fixed on the power board, the plurality of SCR modules are arranged in a line along the length direction of the shell, and the plurality of copper pairs extend in a straight line and are parallelly arranged, these installation modes can jointly reduce the installation space in the shell, thereby reducing the height of the shell, that is, the internal structure of the power conversion equipment is more compact, and more electrical equipment can be adapted. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of the power conversion equipment;

[0028] Figure 2 is a structural schematic view of one angle of the internal structure of the power conversion equipment;

[0029] Figure 3 is a structural schematic view of another angle of the internal structure of the power conversion equipment;

[0030] Figure 4 is a front structural schematic view of the power board, the SCR module and the copper pair;

[0031] Figure 5 is a structural schematic view of the partition plate;

[0032] In the drawings, the reference signs of the drawings of the specification are as follows:

[0033] 10, housing, 101, front side wall, 1011, first vent hole, 1012, first escape hole, 1013, second escape hole, 102, rear side wall, 1021, second vent hole, 11, partition, 20, power board, 21, signal terminal, 30, SCR module, 40, copper bar, 41, first copper bar, 42, second copper bar, 50, radiator, 60, cooling fan, 70, insulating column, 100, first area, 200, second area. DETAILED DESCRIPTION

[0034] The specific embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated thereby. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0036] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the present application, unless specifically and expressly defined otherwise, a first feature "on" or "under" a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "underneath" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0038] Please refer to Figures 1 to 5 The embodiment of the utility model provides a kind of electrical equipment, power conversion equipment can be applied to electrical equipment, specifically, power conversion equipment includes:

[0039] Shell 10, the inner wall of shell 10 is equipped with partition 11, partition 11 divides the inner cavity of shell 10 into first chamber and second chamber, and partition 11 has first area 100 close to the first end of shell 10 and second area 200 close to the second end of shell 10 opposite the first end of shell 10;

[0040] Power board 20, power board 20 is installed in the first area 100 of partition 11, and located in first chamber, power board 20 is equipped with signal terminal 21, and the plug interface of signal terminal 21 is located on the side wall of the first end of shell 10;

[0041] Multiple SCR modules 30, multiple SCR modules 30 are installed in the second area 200 of partition 11, and located in first chamber, multiple SCR modules 30 are arranged in parallel between the first end of shell 10 and the second end of shell 10;

[0042] Multiple copper bar pairs 40, multiple copper bar pairs 40 are installed in parallel in the second end of shell 10, and are electrically connected with SCR module 30 one by one;

[0043] Radiator 50, radiator 50 is installed in the second area 200 of partition 11, and located in second chamber, SCR module 30 is fixedly connected with radiator 50.

[0044] As Figure 2As shown, specifically, the shell 10 includes a bottom plate, a front side wall 101, a rear side wall 102, a left side wall, a right side wall, and a top plate. The four peripheral edges of the partition plate 11 are fixedly connected with the rear side wall 102, the front side wall 101, the left side wall, and the right side wall, respectively, so as to divide the inner cavity of the shell 10 into a first chamber and a second chamber. The first chamber is the space formed between the top plate, the left side wall, the right side wall, the front side wall 101, the rear side wall 102, and the partition plate 11, and the second chamber is the space formed between the bottom plate, the left side wall, the right side wall, the front side wall 101, the rear side wall 102, and the partition plate 11.

[0045] More specifically, the end wall of the first end of the shell is the front side wall 101, and the end wall of the second end of the shell is the rear side wall 102.

[0046] As shown, Figure 4 More specifically, the first region 100 of the partition plate 11 is the left side of the partition plate, which includes a left-side mounting position of the partition plate facing the top plate and a left-side mounting position of the partition plate facing the bottom plate. The second region 200 of the partition plate 11 is the right side of the partition plate, which includes a right-side mounting position of the partition plate facing the top plate and a right-side mounting position of the partition plate facing the bottom plate.

[0047] Specifically, the SCR module 30 refers to a silicon controlled rectifier module.

[0048] Specifically, the plurality refers to at least two, and the plurality of SCR modules 30 in the embodiment specifically refers to three SCR modules 30.

[0049] The plurality refers to at least two, and the plurality of SCR modules 30 in the embodiment specifically refers to three SCR modules 30.

[0050] As shown, Figure 4 Specifically, the copper bar pair 40 includes a first copper bar 41 and a second copper bar 42, and the first copper bar 41 and the second copper bar 42 of the plurality of copper bar pairs 40 are alternately and spacedly arranged. The number of the first copper bar 41 and the number of the second copper bar 42 in the embodiment are the same, and one SCR module 30 is connected with the first copper bar 41 and the second copper bar 42 at the same time.

[0051] The length extension direction of the first copper bar 41 and the second copper bar 42 is the depth direction of the shell, i.e., the Y direction, so that one end of the first copper bar 41 and the second copper bar 42 can be connected with the SCR module 30, and the other end extends out of the end wall of the second end of the shell 10.

[0052] The SCR module 30 includes an input end and an output end. One end of the first copper bar 41 is electrically connected with the input end, and the other end extends out of the end wall of the second end of the shell 10. One end of the second copper bar 42 is electrically connected with the output end, and the other end extends out of the end wall of the second end of the shell 10.

[0053] Specifically, the one-to-one electrical connection between the plurality of copper pairs 40 and the SCR modules 30 means that the number of the copper pairs 40 corresponds to the number of the SCR modules 30, and the arrangement direction of the plurality of copper pairs 40 is the same as the arrangement direction of the plurality of SCR modules 30. One end of the first copper pair 41 is electrically connected to the input end of the SCR module 30, and one end of the second copper pair 42 is electrically connected to the output end, so that the first copper pair 41 and the second copper pair 42 are alternately and spacedly arranged.

[0054] In the embodiment, the length extension direction of the copper pair 40 is substantially linear, and the plurality of copper pairs 40 are arranged in parallel with each other, so that the layout of the copper pairs 40 inside the shell 10 and the SCR modules 30 is more reasonable and neat, and the linear extension of the copper pairs 40 can also reduce the material consumption of the copper pairs 40 and reduce the production cost.

[0055] In the prior art, the free ends of the plurality of first copper pairs 41 are concentratedly distributed on one side of the rear side wall 102, and the free ends of the second copper pairs 42 are distributed on the other side of the rear side wall 102, so that the wiring of the copper pairs 40 inside the shell 10 is zigzag, which not only increases the cost, but also greatly occupies the installation space inside the shell 10 to ensure that the wiring of the copper pairs 40 meets the safety distance, so that the volume of the shell 10 is large.

[0056] The copper pairs 40 of the embodiment extend linearly, which not only can reduce the cost, but also can reduce the occupied space inside the shell 10, so that the volume of the shell 10 can be reduced.

[0057] As shown in Figure 4 More specifically, the insulating column 70 is arranged between each copper pair 40 and the partition plate 11, one end of the insulating column 70 is fixedly connected to the copper pair 40, and the other end is fixedly connected to the partition plate 11. A plurality of insulating columns 70 are arranged between each copper pair 40 and the partition plate 11.

[0058] The upper end of the insulating column 70 of the embodiment is fixedly connected to the copper pair 40, and the lower end of the insulating column 70 is fixedly connected to the partition plate 11 for supporting the copper pair 40. Preferably, two insulating columns 70 are respectively arranged between each copper pair 40 and the partition plate 11 to enhance the supporting effect, wherein one insulating column 70 is located at one end of the copper pair 40 close to the SCR module 30, and the other insulating column 70 is located at one end of the copper pair 40 close to the rear side wall 102.

[0059] The shell 10 of the embodiment is substantially a cuboid, the length direction of the cuboid is set as the X direction, the width direction is set as the Y direction, and the height direction is set as the Z direction, and the X, Y and Z are perpendicular to each other.

[0060] The power plate 20 of the embodiment is substantially rectangular, the length direction of the power plate 20 extends along the X direction, the three SCR modules 30 are arranged in a straight line, that is, extend along the X direction, the three SCR modules 30 are located on the side of the power plate 20 away from the front side wall 101, and the three pairs of copper bars 40 are parallel to each other and located on the side of the three SCR modules 30 away from the power plate 20, and the extension direction of the length of the copper bar pair 40 is the same as the width direction of the partition plate 11, that is, extends along the Y direction.

[0061] In the prior art, the plug-in interface of the signal terminal 21 and the end of the copper bar pair 40 extending out of the shell 10 are located on the same side wall of the shell 10, and for this purpose, a separate interface plate for mounting the signal terminal 21 is separately provided, and the interface plate is fixedly mounted on the side wall of the shell 10 and is specifically arranged between the top plate and the power plate 20. Since the interface plate is electrically connected to the power plate 20 through wires, not only does it cause the wires inside the shell 10 to be tangled and pose a safety hazard, but also the lines plugged into the same side wall of the shell 10 are also very tangled.

[0062] Specifically, the outer layer of the wires of the connecting plate is usually wrapped with an insulating layer, and the insulating layer is usually a heat-shrinkable sleeve. Since the wires need to pass through the SCR module 30 to be electrically connected to the interface plate, the heat-shrinkable sleeve near the SCR module 30 is easily aged due to the high temperature of the SCR module 30 during operation, and eventually exposes the wires. If the exposed wires do not have enough safety distance, there is a risk of explosion, which greatly increases the safety hazard.

[0063] However, the signal terminal 21 of the embodiment is directly mounted on the mounting surface of the power plate 20, reducing the interface plate mounted on the side wall of the shell 10, and also reducing the wire height reserved for the connecting wires of the interface plate, making the inside of the shell 10 more tidy, improving safety, and also shortening the distance between the top plate and the partition plate 11, that is, reducing the height of the shell 10 and reducing the volume of the shell 10. The plug-in interface of the signal terminal 21 of the embodiment is located on the front side wall 101, and one end of the copper bar pair 40 extends from the rear side wall 102, so that the plug-in wires connected to external equipment can be dispersed, making it more convenient for external wiring, and the external lines are more tidy.

[0064] Specifically, the end wall of the first end of the shell 10 is provided with a first avoiding hole 1012 for avoiding the plug-in interface of the signal terminal 21.

[0065] As shown in Figure 1 The plug-in interface of the signal terminal 21 of the embodiment faces the front side wall 101, and the first avoiding hole 1012 is formed in the front side wall 101, so that the plug-in interface of the signal terminal 21 corresponds to the first avoiding hole 1012, and preferably, the end face of the plug-in interface of the signal terminal 21 is flush with the outer surface of the front side wall 101.

[0066] The signal terminal 21 is fixed on the side of the partition plate 11 facing the first end of the shell 10, so that the plug-in interface can correspond to the first avoiding hole 1012 of the front side wall 101 directly, without the need to connect again by wires.

[0067] As shown in the figure, preferably, the signal terminal 21 is a plurality of signal terminals 21 arranged in a straight line. Figure 4

[0068] The power board 20 is arranged in the first area 100 of the partition plate 11, the plurality of SCR modules 30 and the plurality of copper pairs 40 are arranged in the second area 200 of the partition plate 11, the plurality of SCR modules 30 are arranged in a row along the length direction of the shell 10, which facilitates the connection of the copper pairs 40, the plurality of copper pairs 40 are installed in parallel at the second end of the shell 10 and are electrically connected to the SCR modules 30 at one end, and the plurality of copper pairs 40 extend in a straight line and are arranged in parallel to each other, so that the internal structure of the shell 10 is more neat and compact, and the neat and compact layout is also more convenient for maintenance.

[0069] Therefore, the signal terminal 21 of the embodiment is directly fixed on the power board 20, the plurality of SCR modules 30 are arranged in a row along the length direction of the shell 10, and the plurality of copper pairs 40 extend in a straight line and are arranged in parallel to each other, and these installation methods can collectively reduce the installation space occupied in the shell 10, thereby reducing the height of the shell 10, i.e. the internal structure of the power conversion device is more compact, and more electrical equipment can be adapted.

[0070] As shown in the figure, specifically, the end wall of the first end of the shell 10 adjacent to the second chamber is provided with a first ventilation hole 1011, and the end wall of the second end of the shell 10 adjacent to the second chamber is provided with a second ventilation hole 1021 opposite to the first ventilation hole 1011. Figure 3

[0071] Specifically, the lower part of the front side wall 101 is provided with the first ventilation hole 1011, and the lower part of the rear side wall 102 is provided with the second ventilation hole 1021.

[0072] ​​The power conversion device further comprises a cooling fan 60, which is arranged in the first area 100 of the partition plate 11 and located in the second chamber, and faces the radiator 50.

[0073] The cooling fan 60 is located between the front side wall 101 and the radiator 50, and faces the first vent hole 1011 on one side and the radiator 50 on the other side, so that the cooling fan 60 blows air towards the radiator 50 when working.

[0074] Specifically, the power board 20 is located between the partition plate 11 and the top plate, and is fixedly connected to the side of the partition plate 11 facing the top plate and located on the left side of the partition plate 11, the three SCR modules 30 are located between the partition plate 11 and the top plate and located on the right side of the partition plate, the radiator 50 is located between the partition plate 11 and the bottom plate and located below the three SCR modules 30, the partition plate 11 is provided with a second avoiding hole 1013 at the corresponding position of the three SCR modules 30, so that the three SCR modules 30 are fixedly connected to the top of the radiator 50, the bottom of the radiator 50 is fixedly connected to the bottom plate, the cooling fan 60 is located between the partition plate 11 and the bottom plate and located below the power board 20, and the top of the cooling fan 60 is fixedly connected to the side of the partition plate 11 facing the bottom plate.

[0075] In this embodiment, the extending direction of the fins of the radiator 50 is the same as the depth direction of the shell 10, and the heat dissipation channels are formed between the adjacent two fins, one end of the heat dissipation channel is opened towards the outlet of the cooling fan 60, and the other end is opened towards the second vent hole 1021. The first vent hole 1011 is used as an air inlet, and the second vent hole 1021 is used as an air outlet. When the cooling fan 60 works, the first vent hole 1011 intakes air and blows it towards the radiator 50, the air flows through the heat dissipation channel and discharges the heat of the radiator 50 from the second vent hole 1021, so as to achieve heat dissipation.

[0076] Specifically, the radiator 50 comprises a plurality of fins, the thickness of the fins is 1.3mm-1.5mm, and the distance between the adjacent two fins is 4mm-4.5mm. Preferably, the thickness of the fins can be 1.4mm, and the distance between the adjacent two fins can be 4.2mm.

[0077] In order to meet the heat dissipation effect of the power conversion device and further reduce the volume of the shell 10, the heat dissipation effect can be improved by shortening the fin spacing and reducing the thickness of the fins. Moreover, the height (i.e. Z direction) and length (i.e. X direction) of the radiator 50 can be maximized, i.e. the top end of the radiator 50 is fixedly connected to the SCR module 30, as shown in Figure 5As shown, the second avoiding hole 1013 is arranged in the baffle 11 at the projection position of the SCR module 30, so as to contact the SCR module 30 with the radiator 50, and conduct the heat of the SCR module 30 to the radiator 50. The bottom end of the radiator 50 is fixedly connected with the bottom plate, and is used for supporting the SCR module 30. The two ends of the radiator 50 are respectively fixedly connected with the left side wall and the right side wall, and are used for reinforcing the strength of the shell 10. At the same time, since the lower mounting space of the shell 10 is only provided with the fan and the radiator 50, the width (i.e. the Y direction) of the radiator 50 is increased as much as possible under the condition of meeting the safety distance of the fan and the radiator 50, until the heat dissipation effect of the power conversion device is met.

[0078] Specifically, the number of the heat dissipation fans 60 is multiple, and the multiple heat dissipation fans 60 are arranged in a straight line. Since the spacing between the baffle 11 and the bottom plate is limited, in order to improve the heat dissipation effect, it is preferred to arrange multiple small heat dissipation fans 60 adapted to the spacing. The top of the heat dissipation fan 60 can be fixedly connected with the baffle 11, and the bottom can be fixedly connected with the bottom plate.

[0079] The number of the heat dissipation fans 60 in the embodiment is three, and the three heat dissipation fans 60 are arranged in a straight line along the length direction of the shell 10, so that the three heat dissipation fans 60 all blow to the radiator 50 for heat dissipation.

[0080] Since the heat dissipation fans 60 are close to the front side wall 101 of the shell 10, the three heat dissipation fans 60 are arranged in a column, and when the heat dissipation fans 60 need to be maintained or cleaned, the front side wall 101 is directly disassembled to facilitate the maintenance or cleaning.

[0081] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only for specific embodiments of the utility model, and is not used to limit the protection scope of the utility model. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A power conversion device, characterized by, The power conversion device comprises: a shell, a partition plate is arranged in the shell, the partition plate divides an inner cavity of the shell into a first chamber and a second chamber, and the partition plate has a first area close to a first end of the shell and a second area close to a second end of the shell opposite to the first end of the shell; a power board is arranged in the first area of the partition plate and located in the first chamber, and a signal terminal is arranged on the power board, and a plug-in interface of the signal terminal is located on a side wall of the first end of the shell; a plurality of SCR modules are arranged in the second area of the partition plate and located in the first chamber, and the plurality of SCR modules are arranged in parallel between the first end of the shell and the second end of the shell; a plurality of copper bar pairs are arranged in parallel on the second end of the shell and electrically connected to the SCR modules one by one, and the length of the copper bar pairs extends in a straight line; a radiator is arranged in the second area of the partition plate and located in the second chamber, and the SCR modules are fixedly connected to the radiator.

2. The power conversion device of claim 1, wherein, The copper bar pair comprises a first copper bar and a second copper bar, and the first copper bars and the second copper bars of the plurality of copper bar pairs are arranged alternately and at intervals; The SCR module comprises an input end and an output end, one end of the first copper bar is electrically connected to the input end, and the other end of the first copper bar extends out of an end wall of the second end of the shell, one end of the second copper bar is electrically connected to the output end, and the other end of the second copper bar extends out of the end wall of the second end of the shell.

3. The power conversion device of claim 1, wherein, An insulating column is arranged between each copper bar pair and the partition plate, one end of the insulating column is fixedly connected to the copper bar pair, and the other end of the insulating column is fixedly connected to the partition plate.

4. The power conversion device of claim 3, wherein, A plurality of insulating columns are arranged between each copper bar pair and the partition plate.

5. The power conversion device of claim 1, wherein, A first avoiding hole is arranged on an end wall of the first end of the shell to avoid the plug-in interface of the signal terminal.

6. The power conversion device of claim 5, wherein, The signal terminal is a plurality of signal terminals arranged in a straight line.

7. The power conversion device of claim 1, wherein, The radiator comprises a plurality of fins, the thickness of the fin is 1.3mm-1.5mm, and the distance between two adjacent fins is 4mm-4.5mm.

8. The power conversion device of claim 7, wherein, A first ventilation hole is arranged on an end wall of the first end of the shell adjacent to the second chamber, and a second ventilation hole opposite to the first ventilation hole is arranged on an end wall of the second end of the shell adjacent to the second chamber; The power conversion device further comprises a cooling fan, the cooling fan is arranged in the first area of the partition plate and located in the second chamber, and the cooling fan faces the radiator.

9. The power conversion device of claim 8, wherein, The number of the cooling fan is a plurality.

10. An electrical device, characterized by The power conversion device comprises any one of claims 1-9.

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