CN219718907U - Power module of vacuum contactor - Google Patents
Power module of vacuum contactor Download PDFInfo
- Publication number
- CN219718907U CN219718907U CN202320621707.9U CN202320621707U CN219718907U CN 219718907 U CN219718907 U CN 219718907U CN 202320621707 U CN202320621707 U CN 202320621707U CN 219718907 U CN219718907 U CN 219718907U
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- Prior art keywords
- power supply
- circuit board
- supply circuit
- shell
- heat dissipation
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 abstract description 10
- 238000003475 lamination Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses a power module of a vacuum contactor, which comprises a vertical power circuit board arranged in a power shell; the vertical power supply circuit board comprises a horizontal power supply circuit board and a vertical power supply circuit board, wherein the horizontal power supply circuit board and the vertical power supply circuit board are perpendicular to each other, an air guide heat dissipation cavity extending along the length direction of the power supply shell is formed between the horizontal power supply circuit board and the vertical power supply circuit board in a limiting mode, the air guide heat dissipation cavity is communicated with the outside in a ventilation mode, and all electronic elements of the power supply module are arranged on the surface of the vertical power supply circuit board corresponding to the air guide heat dissipation cavity. According to the utility model, the circuit boards are arranged in a vertical mode through the vertical power circuit board, and the air guide heat dissipation cavity with larger space is formed in the power shell, so that the problem that ventilation and heat dissipation of the power module arranged in a circuit board lamination mode are not smooth is solved.
Description
Technical Field
The utility model belongs to the technical field of power supply structures of vacuum contactors, and particularly relates to a power supply module of a vacuum contactor.
Background
The power supply module of the vacuum contactor is charged through an external power supply, and then power is supplied to the vacuum contactor to realize the action of opening and closing the gate. In the prior art, overheating of a power module directly affects its operation performance, and therefore, overheat protection is important. The circuit boards applied to the inside of the power module of the vacuum contactor are arranged in a lamination mode, the space between the laminated circuit boards is kept, but the space is smaller, and due to occupation of electronic elements, the air flow passing performance of the circuit boards in the lamination mode is poor, so that the ventilation and heat dissipation performance of the power module is limited.
Disclosure of Invention
The utility model aims to: in order to overcome the defects in the prior art, the utility model provides the power module of the vacuum contactor, wherein the circuit boards are arranged in a vertical mode through the vertical power circuit boards, and the air guide heat dissipation cavity with larger space is formed in the power shell, so that the problem that the ventilation and heat dissipation of the power module arranged in a circuit board lamination mode are not smooth is solved.
The technical scheme is as follows: in order to achieve the above object, a power module of a vacuum contactor of the present utility model includes a vertical power circuit board built in a power housing; the vertical power supply circuit board comprises a horizontal power supply circuit board and a vertical power supply circuit board, wherein the horizontal power supply circuit board and the vertical power supply circuit board are perpendicular to each other, an air guide heat dissipation cavity extending along the length direction of the power supply shell is formed between the horizontal power supply circuit board and the vertical power supply circuit board in a limiting mode, the air guide heat dissipation cavity is communicated with the outside in a ventilation mode, and each electronic element of the power supply module is arranged on the board surface of the vertical power supply circuit board corresponding to the air guide heat dissipation cavity.
Further, the horizontal power supply circuit board is arranged along the length direction of the power supply shell, the horizontal power supply circuit board is arranged along the width direction of the power supply shell, and one width end of the horizontal power supply circuit board is in insulation and propped against the insulating layer formed by the insulating material.
Further, the power supply shell is provided with an air inlet and an air outlet which are correspondingly communicated with the air guide heat dissipation cavity, the air inlet corresponds to the air guide input end of the air guide heat dissipation cavity, and the air outlet corresponds to the air guide output end of the air guide heat dissipation cavity.
Further, the power supply shell is composed of a shell body and a shell cover plate, wherein the shell cover plate covers the shell body to form a wire penetrating opening at the wiring end of the power supply module.
Further, the air inlet is positioned on the shell cover plate; the air outlet holes are arranged on the shell body, and a plurality of the air outlet holes are uniformly distributed on one side of the shell body in a linear array to form an air outlet area structure; the air outlet cross-sectional area of the air outlet area structure is larger than the air inlet cross-sectional area of the air inlet.
Further, the power supply housing has a power supply mounting portion adapted to the base of the vacuum contactor, the power supply mounting portion being integrally formed with the housing body.
The beneficial effects are that: the circuit board of the power supply module is a vertical power supply circuit board which is arranged in two directions which are vertical and horizontal, the space of the formed air guide heat dissipation cavity is larger, the air guide heat dissipation in the air guide heat dissipation cavity is smoother, the problem that the ventilation and heat dissipation of the power supply module arranged in a circuit board lamination mode are not smooth is solved, and the overheat protection performance of the power supply module of the vacuum contactor is greatly improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a power module;
FIG. 2 is a schematic diagram of the overall structure of the power module II;
FIG. 3 is a schematic diagram of the circuit structure of the power module;
fig. 4 is a schematic diagram of a control loop principle of the power module applied to the vacuum contactor.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
The circuit boards applied to the inside of the power module of the vacuum contactor are arranged in a lamination mode, the space between the laminated circuit boards is kept, but the space is smaller, and due to occupation of electronic elements, the air flow passing performance of the circuit boards in the lamination mode is poor, so that the ventilation and heat dissipation performance of the power module is limited.
In order to solve the above problems, the technical solution proposed in the present utility model is shown in fig. 1, a power module of a vacuum contactor, comprising a vertical power circuit board 2 built in a power housing 1; the vertical power supply circuit board 2 comprises a horizontal power supply circuit board 21 and a vertical power supply circuit board 22, wherein the horizontal power supply circuit board 21 and the vertical power supply circuit board 22 are perpendicular to each other, an air guide heat dissipation cavity 3 extending along the length direction of the power supply shell 1 is formed between the horizontal power supply circuit board 21 and the vertical power supply circuit board 22 in a limiting mode, the air guide heat dissipation cavity 3 is communicated with the outside in a ventilation mode, and each electronic element 4 of the power supply module is arranged on the board surface of the vertical power supply circuit board 2 corresponding to the air guide heat dissipation cavity 3. Different from the power supply module which is arranged in the existing circuit board layer, the circuit board of the power supply module is arranged in two directions which are horizontal and vertical, namely, the vertical power supply circuit board 2, and the formed air guide heat dissipation cavity 3 is larger in space, and air is smoothly guided and dissipated in the air guide heat dissipation cavity 3.
More specifically, as shown in fig. 1, the horizontal power circuit board 21 and the vertical power circuit board 22 are disposed in a specific azimuth relationship with respect to the power housing 1: the horizontal power supply circuit board 21 is arranged along the length direction of the power supply shell 1, the horizontal power supply circuit board 21 is arranged along the width direction of the power supply shell 1, so that an air guide heat dissipation cavity 3 extending along the length direction of the power supply shell 1 is formed, the air flow guiding and heat dissipation stroke of the air flow in the power supply shell 1 is enlarged, and the horizontal power supply circuit board 21 and one width end of the horizontal power supply circuit board 21 are in insulation and propped against each other through an insulation layer 5 formed by an insulation material, so that an insulation protection effect is achieved.
As shown in fig. 2, the power supply housing 1 is provided with an air inlet 6 and an air outlet 7 which are correspondingly communicated with the air guide heat dissipation cavity 3, the air inlet 6 corresponds to the air guide input end of the air guide heat dissipation cavity 3, and the air outlet 7 corresponds to the air guide output end of the air guide heat dissipation cavity 3. The power supply shell 1 is composed of a shell body and a shell cover plate, wherein the shell cover plate covers the shell body to form a wire through hole 8 at a wiring end of the power supply module for threading. The power supply housing 1 is provided with a power supply installation part 9 matched with a base of the vacuum contactor, and the power supply installation part 9 and the housing body are integrally formed. The air inlet 6 is positioned on the shell cover plate; the air outlet holes 7 are positioned on the shell body, and a plurality of the air outlet holes 7 are uniformly distributed on one side of the shell body in a linear array to form an air outlet area structure; only on the premise of ensuring smooth air outlet, the air inlet can be smooth, so that the air outlet cross section area of the air outlet area structure is larger than the air inlet cross section area of the air inlet 6.
As shown in fig. 3, the power module of the present embodiment adopts a UC2843 chip circuit, and the circuit is formed by each electronic component 4, an EMI circuit, a sampling circuit, and a voltage stabilizing circuit, where the electronic component 4 includes a lightning protection unit, a rectifying and filtering unit, a power conversion unit, an input overvoltage and undervoltage protection unit, a PFC power factor correction unit, a PWM controller, a current limiting protection unit, a short circuit protection unit, and an output overvoltage and undervoltage protection unit, and the connection modes of each electronic component and circuit are shown in fig. 3. Therefore, the number of the electronic components of the power module is large, if the electronic components are mounted in a circuit board lamination mode, air guide is not smooth enough, ventilation and heat dissipation performance can be greatly limited, and by adopting the design of the vertical power circuit board 2 of the scheme, the formed air guide and heat dissipation cavity 3 is enough to accommodate the electronic components, the circuit board structure is reasonable in arrangement, the heat dissipation space is large, and ventilation smoothness is guaranteed. Through experiments, the vacuum contactor provided with the scheme is reliable in action, the power module is matched with a switching-on loop of equipment, the switching-on time of the vacuum contactor meets the action requirement of 40-90ms, the switching-on experiment is good, and the cost is saved.
As shown in figure 4, the power supply module does not operate in a normal time, when the vacuum contactor is switched on, the external power supply charges the power supply module, then the power supply module provides a short-time power supply for the switch-on coil of the vacuum contactor, the vacuum contactor performs switch-on action, and the output power meets the coil switch-on requirement of the vacuum contactor. Wherein TR is a wide voltage power supply module. The power supply parameters are respectively as follows: the input voltage is 110V direct current; the output voltage is 24V direct current; the power is 1200W; the output current was 50A.
The foregoing is only a preferred embodiment of the utility model, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.
Claims (6)
1. A power module for a vacuum contactor, comprising: comprises a vertical power circuit board (2) which is arranged in a power shell (1); this vertical type power supply circuit board (2) include mutually perpendicular's horizontal power supply circuit board (21) and be located vertical power supply circuit board (22) of horizontal power supply circuit board (21) one end, spacing constitution between horizontal power supply circuit board (21) and vertical power supply circuit board (22) is along air guide heat dissipation chamber (3) that power supply housing (1) length direction extends, air guide heat dissipation chamber (3) are ventilated with the external world and are linked together, and each electronic component (4) of power module set up in with air guide heat dissipation chamber (3) is corresponding the face of vertical type power supply circuit board (2).
2. The power module of a vacuum contactor according to claim 1, wherein: the horizontal power supply circuit board (21) is arranged along the length direction of the power supply shell (1), the horizontal power supply circuit board (21) is arranged along the width direction of the power supply shell (1), and one width end of the horizontal power supply circuit board (21) is in insulation and propped against the insulating layer (5) formed by insulating materials.
3. The power module of a vacuum contactor according to claim 2, wherein: the power supply shell (1) is provided with an air inlet (6) and an air outlet (7) which are correspondingly communicated with the air guide heat dissipation cavity (3), the air inlet (6) corresponds to the air guide input end of the air guide heat dissipation cavity (3), and the air outlet (7) corresponds to the air guide output end of the air guide heat dissipation cavity (3).
4. A power module for a vacuum contactor according to claim 3, wherein: the power supply shell (1) is composed of a shell body and a shell cover plate, wherein the shell cover plate covers the shell body to form a wire penetrating opening (8) at the wiring end of the power supply module.
5. The power module of a vacuum contactor according to claim 4, wherein: the air inlet (6) is positioned on the shell cover plate; the air outlet holes (7) are positioned on the shell body, and a plurality of the air outlet holes (7) are uniformly distributed on one side of the shell body in a linear array to form an air outlet area structure; the air outlet cross section area of the air outlet area structure is larger than the air inlet cross section area of the air inlet (6).
6. The power module of a vacuum contactor according to claim 4, wherein: the power supply shell (1) is provided with a power supply installation part (9) matched with a base of the vacuum contactor, and the power supply installation part (9) and the shell body are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320621707.9U CN219718907U (en) | 2023-03-27 | 2023-03-27 | Power module of vacuum contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320621707.9U CN219718907U (en) | 2023-03-27 | 2023-03-27 | Power module of vacuum contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219718907U true CN219718907U (en) | 2023-09-19 |
Family
ID=87997440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320621707.9U Active CN219718907U (en) | 2023-03-27 | 2023-03-27 | Power module of vacuum contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219718907U (en) |
-
2023
- 2023-03-27 CN CN202320621707.9U patent/CN219718907U/en active Active
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