CN216850950U - Electric control box - Google Patents

Abstract

The application provides an electric cabinet. The electric cabinet comprises a box body, an integrated switch power supply and a power distribution switch. The inside of box is formed with accepts the chamber. Integrated form switching power supply with the distribution switch accept in accept the chamber, integrated form switching power supply with the distribution switch electricity is connected, the distribution switch with integrated form switching power supply layering arranges, distribution switch place the layer with integrated form switching power supply place the layer is not in the co-occurrence. According to the scheme, the power frequency transformer is replaced by the switching power supply, and the switching power supply has the characteristics of less waste heat generation and energy conservation, so that the power supply conversion efficiency is relatively high. In addition, the integration level of the switch power supply is higher, the size is reduced to some extent, and the switch power supply and the power distribution switch are arranged in a layered mode in the accommodating cavity, so that the space inside the box body can be effectively and reasonably utilized, and the structural layout in the box body is more compact.

Description

Electric control box

Technical Field

The application relates to the technical field of power distribution products, in particular to an electric cabinet.

Background

Taking a standby power electric control box of a truck as an example, the existing electric control box adopts a power frequency transformer scheme, namely, the electric control box adopts an independent transformer, a rectifier bridge, a filter capacitor and the like, so that the electric control box is large in size, large in occupied space and relatively low in power conversion efficiency.

SUMMERY OF THE UTILITY MODEL

The application provides an improved electric cabinet, aims at improving power conversion efficiency to and improve the compactness of structure.

The application provides an electric cabinet, includes:

the box body is internally provided with an accommodating cavity;

integrated form switching power supply and distribution switch accept in accept the chamber, integrated form switching power supply with the distribution switch electricity is connected, the distribution switch with integrated form switching power supply layering arranges, distribution switch place the layer with integrated form switching power supply place the layer is not in the co-occurrence.

Optionally, the distribution switch is provided with a plurality of, and a plurality of the distribution switches are arranged on the same layer.

Optionally, the power distribution switch includes a relay, and the relay contacts with the box to form a thermal conduction path.

Optionally, the box body comprises an air inlet and an air outlet which are communicated, and the air inlet and the air outlet are obliquely arranged.

Optionally, the electric cabinet further includes a heat dissipation fan, the heat dissipation fan is disposed in the accommodating cavity, is disposed on the same side wall of the box body as the air inlet, and is configured to blow air entering from the air inlet to the power distribution switch and the integrated switching power supply.

Optionally, the electric cabinet further comprises a first connector connected to the air inlet of the box body, and the first connector is a right-angle connector.

Optionally, the first joint is configured as a glan head.

Optionally, the electric cabinet further includes a second joint connected to the air outlet of the cabinet, and the second joint is a right-angle duckbill joint.

Optionally, the electric cabinet further includes a heat sink, the heat sink contacts with the integrated switching power supply and exchanges heat with the integrated switching power supply, and the heat sink is located outside the accommodating cavity.

Optionally, the heat sink includes a plurality of heat dissipation fins arranged at intervals.

The technical scheme provided by the application can at least achieve the following beneficial effects:

the application provides an electric cabinet, adopts switching power supply to replace power frequency transformer, and switching power supply has the characteristics that produce used heat less, the energy can be saved, therefore, power conversion efficiency is higher relatively. In addition, the integration level of the switch power supply is higher, the size is reduced to some extent, and the switch power supply and the power distribution switch are arranged in a layered mode in the accommodating cavity, so that the space inside the box body can be effectively and reasonably utilized, and the structural layout in the box body is more compact.

Drawings

Fig. 1 is a schematic diagram illustrating a partial structure of an electric cabinet according to an exemplary embodiment of the present application;

fig. 2 is another schematic diagram of a partial structure of an electric cabinet according to an exemplary embodiment of the present application;

FIG. 3 is an exploded view of an electrical cabinet shown in an exemplary embodiment of the present application;

fig. 4 is a schematic wiring diagram of the integrated switching power supply.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with aspects of the present application.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Similarly, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one, and if only "a" or "an" is denoted individually. "plurality" or "a number" means two or more. Unless otherwise specified, "front", "back", "lower" and/or "upper", "top", "bottom", and the like are for ease of description only and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

Fig. 1 is an internal schematic view of an electric cabinet 1 according to an exemplary embodiment of the present application, in which a part of the cabinet is removed.

Fig. 2 is a schematic internal view of the electric cabinet 1 shown in fig. 1 with a part of the cabinet removed.

Fig. 3 is an exploded view of the electric cabinet 1 shown in fig. 1.

Referring to fig. 1 to 3, an electric cabinet 1 is provided in an embodiment of the present application, and the electric cabinet 1 may be used as a standby electric cabinet of a truck, but is not limited thereto.

The electric cabinet 1 includes a cabinet 10, an integrated switching power supply 20 (hereinafter referred to as a switching power supply 20), and a power distribution switch 30. An accommodation chamber 100 is formed inside the case 10, and both the switching power supply 20 and the distribution switch 30 are accommodated in the accommodation chamber 100. In one embodiment, the housing 10 is a rectangular-shaped housing, but is not limited thereto. The switching power supply 20 is electrically connected with the power distribution switch 30, the switching power supply 20 is used for converting between alternating current and direct current into voltage or current required by a user end, and the power distribution switch 30 is a protective electric appliance and used for protecting an electrified circuit. The power distribution switch 30 is layered with the switching power supply 20, and the layer of the power distribution switch 30 is different from the layer of the switching power supply 20. The electric cabinet 1 that this application provided adopts switching power supply 20 to replace the power frequency transformer scheme, and switching power supply 20 has the characteristics that produce used heat less, the energy can be saved, consequently, power conversion efficiency is higher relatively. In addition, the switching power supply 20 has a higher integration level and a relatively smaller volume, and in the accommodating cavity 100, the switching power supply 20 and the power distribution switch 30 are arranged in a layered manner, so that the space inside the box body 10 can be more effectively and reasonably utilized, and the structural layout in the box body 10 is more compact. Fig. 4 shows a wiring diagram of the switching power supply 20.

As shown in fig. 1, the electric cabinet 1 further includes a partition 40 disposed in the cabinet 10, the distribution switch 30 is disposed on one side of the partition 40, the switching power supply 20 is disposed on the other side of the partition 40, and the switching power supply 20 and the distribution switch 30 are separated by the partition 40. The partition 40 may serve as a mounting plate for the distribution switch 30, with the distribution switch 30 being mounted and supported on the partition 40. The partition 40 may be mounted to the inside of the case 10 by bolts, but is not limited thereto.

In one embodiment, the plurality of power distribution switches 30 are provided, the plurality of power distribution switches 30 are connected to the switching power source 20, and the plurality of power distribution switches 30 are provided on the same layer. So set up, can set up a plurality of distribution switches 30 in switching power supply 20 with one side, can make things convenient for switching power supply 20's wiring end to be connected with a plurality of distribution switches 30 like this, be convenient for wiring and maintenance, make a plurality of distribution switches 30's overall arrangement more reasonable, orderly. The plurality of power distribution switches 30 include, but are not limited to, circuit breakers and relays. It should be noted that a reasonable electrical clearance and creepage distance must be left between the plurality of distribution switches 30.

As shown in fig. 1, the electric cabinet 1 further includes a mounting bracket 50, the mounting bracket 50 is assembled to the partition 40, and the plurality of distribution switches 30 are mounted and fixed by the mounting bracket 50. The mounting bracket 50 may be provided in plurality as needed, or the mounting bracket 50 may be provided in an integrated structure, and a plurality of distribution switches 30 may be installed at different positions of the mounting bracket 50. In this embodiment, the former is adopted.

As shown in fig. 2 and 3, in one embodiment, the power distribution switch 30 includes a relay 31, and the relay 31 is in contact with the box 10 to form a thermal conduction path. The calorific capacity of relay 31 is great, through contacting relay 31 and box 10, can give box 10 with relay 31's heat transfer, and the rethread box 10 outwards radiates away, is favorable to realizing relay 31's heat dissipation. In addition, in order to effectively transfer heat, the surface 311 of the relay 31 contacting the case 10 is a smooth surface, so that the efficiency of heat transfer can be improved, and effective heat dissipation can be realized. In the embodiment shown in fig. 3, the relay 31 is in contact with the top cover 101 of the case 10. The top cover 101 may be an aluminum top cover, but is not limited thereto.

In one embodiment, the box 10 includes an air inlet 102 and an air outlet 103, which are communicated with each other, and the air inlet 102 and the air outlet 103 are diagonally arranged. Specifically, the box 10 includes a first sidewall 104 and a second sidewall 105 that are vertically connected, where the air inlet 102 is disposed on the first sidewall 104, and the air outlet 103 is disposed on the second sidewall 105, so that the air inlet 102 and the air outlet 103 are obliquely disposed. After the external cold air enters the accommodating cavity 100 from the air inlet 102, the air flow can flow along a straight line direction, when the air flow is blocked by the switching power supply 20 and the power distribution switch 30, the direction of the air flow is changed, the air flow continuously exchanges heat with the switching power supply 20 and the power distribution switch 30 to absorb heat, the air outlet 103 is obliquely staggered with the air inlet 102, the air flow can fully flow and circulate in the accommodating cavity 100, and the flowing and circulating time is prolonged, so that the full heat exchange with the switching power supply 20 and the power distribution switch 30 is realized.

Referring to fig. 1 and 3, the electric cabinet 1 further includes a heat dissipating fan 60, wherein the heat dissipating fan 60 is disposed in the accommodating cavity 100 and disposed on the same side wall of the box 10 as the air inlet 102, i.e., a first side wall 104, for blowing the air entering from the air inlet 102 to the power distribution switch 30 and the switching power supply 20. The heat dissipation fan 60 can accelerate the airflow to flow, which is beneficial to the airflow to be dispersed in the accommodating cavity 100, so that the heat dissipation inside the accommodating cavity 100 is uniform and the heat dissipation effect is good.

As shown in fig. 2 and 3, the electric cabinet 1 further includes a first connector 70 connected to the air inlet 102 of the box body 10, and the first connector 70 is configured as a right-angle connector. The right-angle connector is good in waterproof effect, and can reduce or even avoid the risk of wading of the power distribution switch 30 and the switch power supply 20 in the accommodating cavity 100. In one particular embodiment, the first connector 70 may be configured as a glan head, but is not limited thereto.

In one embodiment, the electric cabinet 1 further comprises a second connector 80 connected to the air outlet 103 of the box body 10, wherein the second connector 80 is a right-angle duckbill connector. Duckbill type connects the air-out resistance big, is favorable to realizing the abundant heat transfer of air current in acceping chamber 100.

As shown in fig. 3, the electric cabinet 1 further includes a heat sink 90, the heat sink 90 is in contact with the switching power supply 20 and exchanges heat with the switching power supply 20, and the heat sink 90 is located outside the accommodating cavity 100. The heat sink 90 can dissipate heat for the switching power supply 20, so as to prevent the switching power supply 20 from being heated too much during operation. In order to improve the heat dissipation effect, the heat sink 90 includes a plurality of heat dissipation fins 901 arranged at intervals, and the heat dissipation fins 901 can increase the heat dissipation area, thereby further improving the heat dissipation effect.

In addition, in order to ensure the moisture entering the receiving cavity 100, a first sealing ring 107 is disposed between the top cover 101 and the bottom 106 of the container 10, and the first sealing ring 107 is clamped between the top cover 101 and the bottom 106 for sealing the joint surface between the top cover 101 and the bottom 106. In addition, a second sealing ring 108 is arranged between the radiator 90 and the tank bottom 106, and the second sealing ring 108 is clamped between the tank bottom 106 and the radiator 90 and is used for sealing a joint surface between the tank bottom 106 and the radiator 90.

As shown in fig. 2, the outer surface of the box 10 is provided with a plurality of fixing members 109, and the fixing members 109 are used for fixing the electric cabinet 1. The fixing member 109 may be provided in a right-angled configuration, but is not limited thereto.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims (10)

1. An electric cabinet, comprising:

the box body is internally provided with an accommodating cavity;

integrated form switching power supply and distribution switch accept in accept the chamber, integrated form switching power supply with the distribution switch electricity is connected, the distribution switch with integrated form switching power supply layering arranges, distribution switch place the layer with integrated form switching power supply place the layer is not in the co-occurrence.

2. The electrical cabinet of claim 1, wherein the plurality of power distribution switches are provided, and a plurality of the power distribution switches are provided in the same layer.

3. The electrical cabinet of claim 1, wherein the power distribution switch comprises a relay that contacts the box to form a thermally conductive path.

4. The electric cabinet according to any one of claims 1 to 3, wherein the box body comprises an air inlet and an air outlet which are communicated with each other, and the air inlet and the air outlet are obliquely arranged.

5. The electric cabinet according to claim 4, further comprising a heat dissipation fan disposed in the receiving cavity and disposed on the same side wall of the box body as the air inlet, for blowing the air entering from the air inlet to the distribution switch and the integrated switching power supply.

6. The electric cabinet according to claim 4, further comprising a first connector connected to the air inlet of the cabinet, wherein the first connector is configured as a right-angle connector.

7. The electrical cabinet of claim 6, wherein the first connector is configured as a glan head.

8. The electrical cabinet according to claim 4, further comprising a second connector connected to the box body at the air outlet, the second connector configured as a right-angled duckbill connector.

9. The electrical cabinet of claim 1, further comprising a heat sink in contact with and in heat exchange with the integrated switching power supply, the heat sink being located outside the receiving cavity.

10. The electrical cabinet of claim 9, wherein the heat sink comprises a plurality of spaced apart fins.

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