CN218042161U

CN218042161U - High-voltage power supply rectifying assembly and rectifying device

Info

Publication number: CN218042161U
Application number: CN202123094474.1U
Authority: CN
Inventors: 常双权; 杨磊; 杜辉; 尹盛刚
Original assignee: Sichuan Injet Electric Co Ltd
Current assignee: Sichuan Injet Electric Co Ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-12-13
Anticipated expiration: 2031-12-10

Abstract

The utility model relates to a high voltage power supply rectification subassembly and fairing, this high voltage power supply rectification subassembly include a plurality of fin and a plurality of power tube, still include circuit board, mounting panel, the power tube pastes and adorns in the side of fin, the pin of power tube corresponds pad and the electrical connection who is connected to the circuit board, be provided with a plurality of recesses that parallel on the mounting panel, a plurality of fin set up in the recess side by side. The utility model discloses a with the mode of power tube and fin welding installation, adopt the mounting screw for the tradition, required space is littleer, through paster and reflow soldering installation in the production, degree of automation and production efficiency are higher. The rectifying device comprises a rectifying component and an outer shell, wherein the rectifying component is arranged in the outer shell, so that the electric gap or/and the creepage distance can be further increased, and the high-voltage small size is realized.

Description

High-voltage power supply rectifying assembly and rectifying device

Technical Field

The utility model relates to a power technical field, particularly, in particular to high voltage power supply rectification subassembly and fairing.

Background

With the change of market demands, the high-voltage power supply develops towards the trend of high power density, the size of the high-voltage power supply is required to be further reduced, the high-voltage power supply rectifying device is used as an important component of the high-voltage power supply, the size of the high-voltage power supply rectifying device is increased along with the increase of the output voltage of the high-voltage power supply, and the high-voltage power supply rectifying device has important significance for effectively reducing the size of the high-voltage power supply rectifying device and further saving the cost and the installation space.

The prior patent (CN 204993082U) discloses a specific structure of a high-voltage power supply rectifying device, which adopts a mode of mounting diodes by screws and arranging the diodes in parallel, solves the problems of high-voltage insulation and small volume to a certain extent, but still has the defect of large volume and still has an optimization space.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to improve the bulky problem of high voltage power supply who exists among the prior art, provide a high voltage power supply rectification subassembly and fairing, can reduce the volume of integrated device.

In order to realize the purpose of the utility model, the embodiment of the utility model provides a following technical scheme:

a high-voltage power supply rectification assembly comprises a plurality of cooling fins, a plurality of power tubes, a circuit board and a mounting plate, wherein the power tubes are attached to the side faces of the cooling fins, pins of the power tubes are correspondingly connected to bonding pads of the circuit board and electrically connected, a plurality of parallel grooves are formed in the mounting plate, and the cooling fins are arranged in the grooves in parallel.

In the further optimized scheme, the mounting panel includes bottom plate, roof, the bottom plate with all be provided with on the roof the recess, and a recess on the bottom plate and a recess that corresponds the position on the roof constitute a set of recess, and the opposite both sides limit of fin sets up in same group's recess. In this scheme, bottom plate and roof are mutually supported, and the opposite both sides limit of fin sets up in same group's recess, can strengthen the installation steadiness of fin.

In the further optimized scheme, the device also comprises a left side plate and a right side plate, wherein the left side plate and the right side plate are both connected with the fixed bottom plate and the top plate. In this scheme, through setting up left side board, right side board and connecting PMKD and roof for left side board, right side board, bottom plate and roof mutually support and constitute rectangle frame rack structure, even make the fin all have the support in a plurality of directions, further strengthen the installation steadiness of fin.

In one embodiment, the power tube is welded or crimped to the middle of the heat sink. In this scheme, through welding power tube or crimping in the middle part of fin, can make the rectifier module appearance more pleasing to the eye, also can shorten power tube and circuit board's pad electrical connection's cable.

In another embodiment, the power tube of one of the adjacent two heat dissipation fins is welded or pressed on the upper part of the heat dissipation fin, and the power tube of the other heat dissipation fin is welded or pressed on the lower part of the heat dissipation fin. In this scheme, through the setting of staggering the power tube on every two adjacent fin, can more be favorable to carrying out the rectification and dispel the heat.

In a further optimized scheme, a strip-shaped notch is formed in the radiating fin, and the circuit board is mounted in the notch and is perpendicular to the radiating fin.

In the scheme, the circuit board is arranged at the notch, so that the power tube is conveniently and electrically connected with the welding disc of the circuit board, the installation space of the circuit board can be reduced as much as possible, and the size of the whole high-voltage power supply rectifying device is further reduced.

In an embodiment, the circuit board is a resistance-capacitance absorption board, the circuit board comprises a resistor and a capacitor, and the resistor and the capacitor form a filtering component.

In an embodiment, the power transistor is a field effect transistor or a rectifier diode.

A high voltage power supply rectifier unit, includes the utility model discloses any embodiment high voltage power supply rectification subassembly, still include the shell, high voltage power supply rectification subassembly set up in the shell.

In the scheme, the high-voltage power supply rectifying assembly is arranged in the shell, so that the electric clearance or/and creepage distance of the conductive part in the high-voltage rectifying device can be increased.

In the further optimized scheme, the shell comprises a shell bottom plate, a shell top plate, a left shell plate, a right shell plate and a sealing plate which are connected with each other, wherein the sealing plate is provided with a ventilation hole and a fan mounting hole, and the axis direction of the ventilation hole is parallel to the side face of the cooling fin. In this scheme, through set up ventilation hole and fan mounting hole on the shrouding, can install the fan, realize high-efficient heat dissipation then.

Compared with the prior art, the utility model discloses following beneficial effect has: compared with the traditional mode of installing the power tube and the radiating fins by screws, the mode of installing the power tube and the radiating fins by welding saves the installation space of the screws, can ensure that the length of the transverse rectifying component is shorter, further needs smaller space, and greatly reduces the whole volume of the high-voltage power supply rectifying device. In addition, the automatic welding device is mounted through surface mounting and reflow soldering in production, so that the automation degree is higher, and the production efficiency is greatly improved. The rectifying component in the rectifying device is arranged on the inner side of the shell, so that the electric clearance or/and creepage distance of the conductive component in the high-voltage rectifying device can be increased.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a high-voltage power supply rectifying device in an embodiment.

Fig. 2 is a schematic structural diagram of the rectifying component.

Fig. 3 is a front view of the fairing assembly.

Fig. 4 is a schematic view of the mounting position of the circuit board and the heat sink.

The labels in the figure are:

the heat radiating fin 11, the power tube 12, the circuit board 13, the bottom plate 14, the top plate 15, the groove 16, the left side plate 17, the right side plate 18, the sealing plate 19, the fan 20, the shell bottom plate 21 and the right shell plate 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the high voltage power rectifying apparatus provided in this embodiment includes a rectifying component and a housing, wherein the rectifying component includes a circuit board 13, a plurality of heat sinks 11, a plurality of power tubes 12, and a mounting plate, the power tubes 12 are attached to the side surfaces of the heat sinks 11, pins of the power tubes 12 are correspondingly connected to pads of the circuit board 13 and electrically connected, a groove 16 is formed on the mounting plate, and the heat sinks 11 are arranged in parallel in the groove 16. The rectifying component is arranged in the shell.

The mounting implementation mode mainly comprises welding and crimping. The power tube 12 can be attached to the heat sink 11 in various ways, for example, the power tube 12 is welded or pressed to the middle of the heat sink 11 as shown in fig. 2, so that the whole rectifying assembly is more beautiful. For another example, the power tubes 12 on the adjacent fins 11 may be arranged in a staggered manner, that is, in every two adjacent fins 11, the power tube 12 on one fin 11 is welded or pressed on the upper portion of the fin 11, and the power tube 12 on the other fin 11 is welded or pressed on the lower portion of the fin 11, which may be more favorable for heat dissipation of the power tube 12 and also more favorable for rectification.

The heat sink 11 is preferably a copper sheet. As shown in fig. 1 and 4, the heat sink 11 is provided with a strip-shaped notch, and the circuit board 13 is mounted in the notch and perpendicular to the heat sink 11, so that the mounting space of the circuit board 13 can be reduced as much as possible, and the size of the whole rectifying device can be further reduced.

In this embodiment, the circuit board 13 is a resistance-capacitance absorption board, and the circuit board 13 includes a resistor and a capacitor, and the resistor and the capacitor form a filtering component for filtering after rectification.

The power transistor 12 is a field effect transistor or a rectifier diode. A plurality of field effect transistors or rectifier diodes are connected in series or/and in parallel.

As shown in fig. 2 and fig. 3, in this embodiment, the mounting plate includes a bottom plate 14 and a top plate 15, the bottom plate 14 and the top plate 15 are both provided with a groove 16, and one groove 16 on the bottom plate 14 and one groove 16 at a corresponding position on the top plate 15 form a group of grooves 16, one end of the heat sink 11 is embedded in the groove 16 of the top plate 15, the other end of the heat sink 11 is embedded in the groove 16 of the bottom plate 14, and the top plate 15 and the bottom plate 14 are mutually matched to enable the heat sink 11 to be stably mounted.

The rectifying component further comprises a left side plate 17 and a right side plate 18, wherein the left side plate 17 and the right side plate 18 are both connected with the fixed bottom plate 14 and the top plate 15, so that the bottom plate 14 and the top plate 15 are installed more stably, and then the stability of the radiating fins is further enhanced.

The rectifying component is arranged in the shell and used for increasing the electric clearance or/and creepage distance of the conductive component in the high-voltage rectifying device. More specifically, as shown in fig. 1, the housing includes a housing bottom plate 21, a housing top plate 15, a left housing plate, a right housing plate 22, and a closing plate 19 connected to each other, the closing plate 19 is provided with a vent hole and a fan mounting hole, the fan mounting hole is used for mounting the fan 20, and an axial direction of the vent hole is parallel to a side surface of the heat sink 11.

In the embodiment, the power tube and the radiating fin are welded and mounted, so that compared with the conventional mode of mounting by using screws, the high-voltage power supply rectifying device saves mounting space of the screws, particularly saves the positions of the screws and nuts in the transverse space, and greatly reduces the whole volume of the high-voltage power supply rectifying device. In addition, the automatic degree and the production efficiency are higher through mounting by the surface mounting and reflow soldering in production. Moreover, the arrangement of the mounting plate can sufficiently ensure the mounting stability of the heat sink.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A high-voltage power supply rectifying assembly comprises a plurality of radiating fins and a plurality of power tubes, and is characterized by further comprising a circuit board and a mounting plate, wherein the power tubes are attached to the side faces of the radiating fins, pins of the power tubes are correspondingly connected to bonding pads of the circuit board and electrically connected, a plurality of parallel grooves are formed in the mounting plate, and the plurality of radiating fins are arranged in the grooves in parallel.

2. The high voltage power supply rectifying assembly according to claim 1, wherein the mounting plate comprises a bottom plate and a top plate, the bottom plate and the top plate are both provided with the grooves, one groove on the bottom plate and one groove at a corresponding position on the top plate form a group of grooves, and two opposite side edges of the heat sink are arranged in the same group of grooves.

3. The high voltage power supply rectification assembly of claim 2, further comprising a left side plate and a right side plate, wherein the left side plate and the right side plate are both connected with the fixed bottom plate and the top plate.

4. The high voltage power rectifying assembly according to claim 1, wherein the power tube is welded or crimped to a middle portion of the heat sink.

5. The high voltage power rectifying assembly according to claim 1, wherein the power tube of one of the adjacent two heat dissipating fins is welded or crimped to an upper portion of the heat dissipating fin, and the power tube of the other heat dissipating fin is welded or crimped to a lower portion of the heat dissipating fin.

6. The assembly of claim 1, wherein the heat sink has a slot, and the circuit board is mounted in the slot and perpendicular to the heat sink.

7. The high voltage power supply rectifying assembly according to claim 1, wherein the circuit board is a resistor-capacitor absorption board, the circuit board comprises a resistor and a capacitor, and the resistor and the capacitor form a filter assembly.

8. The high voltage power supply rectification assembly of claim 1, wherein the power transistor is a field effect transistor or a rectifier diode.

9. A high voltage power supply rectifying apparatus, comprising the high voltage power supply rectifying assembly as claimed in any one of claims 1 to 8, and further comprising a housing, wherein the high voltage power supply rectifying assembly is disposed in the housing.

10. The high voltage power supply rectifying device according to claim 9, wherein the outer casing comprises a casing bottom plate, a casing top plate, a left casing plate, a right casing plate and a sealing plate, the sealing plate is provided with a vent hole and a fan mounting hole, and an axial direction of the vent hole is parallel to a side surface of the heat sink.