CN220172655U

CN220172655U - Distribution box

Info

Publication number: CN220172655U
Application number: CN202321642952.4U
Authority: CN
Inventors: 张学文; 曾攀; 孙国勇; 孙涛
Original assignee: Wuhan Kewen Sensing Technology Co ltd
Current assignee: Wuhan Kewen Sensing Technology Co ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2023-12-12
Anticipated expiration: 2033-06-26

Abstract

The utility model relates to a distribution box, comprising: the shell comprises a shell body with a top uncovered and an upper cover, wherein the upper cover is detachably connected to the shell body, a heat dissipation groove is formed in the outer surface of the shell body, a plurality of through holes are formed in the bottom surface of the heat dissipation groove, a heat dissipation assembly comprises a contact bottom plate and a plurality of heat dissipation fins, the contact bottom plate is fixed on the bottom surface of the heat dissipation groove and shields the through holes, the heat dissipation fins are fixed on the contact bottom plate at intervals, and components are fixed inside the shell body and at least partially extend into the through holes and are abutted to the contact bottom plate.

Description

Distribution box

Technical Field

The utility model relates to the technical field of electrical accessories, in particular to a distribution box.

Background

The distribution box is formed by assembling switching equipment, a measuring instrument, protective electric appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electric wiring requirement. The circuit can be switched on or off by means of a manual or automatic switch during normal operation. Because of the various components in the power distribution box, the problem of heat dissipation of the power distribution box is a key point that the power distribution box can stably run.

Patent CN201010243414.9 provides an integrated comprehensive distribution box, including the cabinet body, locates internal main switch, binding post, ampere meter, voltmeter and condenser of cabinet and support the support frame of binding post, ampere meter and voltmeter, its characterized in that: the cabinet body comprises a frame and a top cover, the top cover is connected with the frame, side plates and cabinet doors are arranged on two sides of the frame, and a plurality of heat dissipation holes are respectively formed in the side plates; the frame is internally provided with a main switch cavity, a wiring terminal cavity and a capacitor cavity, a partition plate is arranged between the cavities respectively, a plurality of heat dissipation holes are formed in the partition plate respectively, and cabinet doors are arranged in the main switch cavity, the wiring terminal cavity and the capacitor cavity respectively; the support frame comprises at least two vertical installation bars and a plurality of horizontal installation bars, wherein the at least two vertical installation bars are longitudinally arranged along the cabinet body, the plurality of horizontal installation bars are perpendicular to the vertical installation bars and can be in adjustable connection with the vertical installation bars, and a plurality of adjusting grooves are respectively formed in the vertical installation bars and the horizontal installation bars; the cabinet door and the frame are hinged through a hinge, the end face of the cabinet door facing the frame is provided with a reinforcing convex rib component, the reinforcing convex rib component comprises an inner convex rib and an outer convex rib arranged on the outer side of the inner convex rib, the inner convex rib is connected with the outer convex rib through a connecting block, a joint of the frame and the cabinet door is provided with a folded edge, the folded edge comprises a long edge and a short edge which is perpendicular to the long edge, the long edge is connected with the frame, and a drainage flow passage is arranged between the long edge and the short edge. The heat dissipation effect is enhanced by arranging the heat dissipation holes on the partition plate and the side plate.

But it has the following problems: the setting scene of block terminal is comparatively complicated, and when the block terminal setting was outdoor, the louvre probably can lead to the rainwater to get into the block terminal inside, causes the harm.

Disclosure of Invention

In view of the above, the present utility model provides a power distribution box capable of achieving heat dissipation under waterproof conditions.

In order to achieve the above object, the present utility model provides a power distribution box, comprising: the shell comprises a box body with a top without a cover and an upper cover, wherein the upper cover is detachably connected with the box body, a heat dissipation groove is formed on the outer surface of the box body, a plurality of through holes are formed on the bottom surface of the heat dissipation groove,

the heat dissipation assembly comprises a contact bottom plate and a plurality of heat dissipation fins, the contact bottom plate is fixed on the bottom surface of the heat dissipation groove and shields the through holes, the heat dissipation fins are fixed on the contact bottom plate at intervals,

and the components are fixed inside the box body, and at least part of the components extend into the through holes and are abutted with the contact bottom plate.

Further, a pair of convex strips are arranged in the box body at intervals, and the components are arranged across the convex strips.

Further, components and parts include DC-DC converter, power module, control module, circuit breaker and avionics plug, the DC-DC converter is fixed on the lateral wall of box, DC-DC converter part stretch into the through-hole and with radiator unit butt, power module fixes the bottom half, control module strides and locates on a pair of sand grip, circuit breaker and avionics plug are fixed respectively on the box inner wall.

Further, a plurality of embedded holes are formed in the side wall of the box body, the circuit breaker is fixed on the box body and corresponds to the embedded holes one by one, and a sealing plate is arranged on the detachable cover on the embedded holes.

Furthermore, a wiring groove is formed in the side wall of the box body, the aerial plug connector penetrates through the bottom surface of the wiring groove, and the height of the aerial plug connector relative to the protruding portion of the bottom surface of the wiring groove is smaller than the depth of the wiring groove.

Further, the height of the heat dissipation fins is smaller than the depth of the heat dissipation grooves 111.

Further, a plurality of hooks are fixed on the outer surface of the box body.

Further, a circle of sealing gasket is arranged at the top of the box body without the cover.

Further, the contact bottom plate completely covers the bottom surface of the heat dissipation groove, and a plurality of threaded holes for fixing the box body are formed in the contact bottom plate.

Further, the DC-DC converter, the power module, the control module, the circuit breaker and the navigation plug are mutually separated, and a gap is reserved between any two components.

Compared with the prior art, the distribution box provided by the utility model has the following beneficial effects:

according to the utility model, the radiating groove is formed on the outer surface of the box body, the through hole is formed on the bottom surface of the radiating groove, the component part extends into the through hole, and the contact bottom plate is utilized to seal the through hole, so that the contact bottom plate is contacted with the component, the component can be helped to radiate heat, the through hole can be sealed, the tightness of the distribution box is ensured, and rainwater and dust are prevented from entering the inside of the distribution box.

Drawings

Fig. 1 is a schematic structural diagram of a distribution box according to the present utility model;

fig. 2 is a schematic view of another angle structure of a distribution box according to the present utility model;

FIG. 3 is an enlarged schematic view of the seal plate of FIG. 1;

FIG. 4 is a schematic diagram of the heat dissipating assembly of FIG. 2;

FIG. 5 is a schematic cross-sectional view of the electrical box of FIG. 1;

in the figure: 1-shell, 11-box, 111-heat dissipation groove, 112-through hole, 113-convex strip, 114-hook, 115-embedded hole, 116-sealing plate, 117-wiring groove, 12-upper cover, 2-component, 21-DC-DC converter, 22-power module, 23-control module, 24-circuit breaker, 25-aviation plug, 3-heat dissipation component, 31-contact bottom plate and 32-heat dissipation fin.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a power distribution box, which includes: the heat dissipation device comprises a shell 1, components 2 and a heat dissipation assembly 3, wherein the shell 1 comprises a box body 11 and an upper cover 12, the top of the box body 11 is uncovered, the upper cover 12 is detachably connected to the box body 11, a heat dissipation groove 111 is formed in the outer surface of the box body 11, a plurality of through holes 112 are formed in the bottom surface of the heat dissipation groove 111, the heat dissipation assembly 3 comprises a contact bottom plate 31 and a plurality of heat dissipation fins 32, the contact bottom plate 31 is fixed on the bottom surface of the heat dissipation groove 111 and shields the through holes 112, the heat dissipation fins 32 are fixed on the contact bottom plate 31 at intervals, the components 2 are fixed inside the box body 11, and at least part of the components 2 extend into the through holes 112 and are in butt joint with the contact bottom plate 31.

According to the utility model, the heat dissipation groove 111 is formed on the outer surface of the box body 11, the through hole 112 is formed on the bottom surface of the heat dissipation groove 111, the component 2 partially stretches into the through hole 112, the through hole 112 is sealed by the contact bottom plate 31, so that the contact bottom plate 31 is in contact with the component 2, the heat dissipation of the component 2 can be assisted, the through hole 112 can be sealed, the tightness of the distribution box is ensured, and rainwater and dust are prevented from entering the inside of the distribution box.

Specifically, the top of box 11 no lid is equipped with round sealing gasket, when upper cover 12 with box 11 is fixed, sealing gasket can seal the box 11 with gap between the upper cover 12 guarantees the leakproofness of block terminal.

Further, a pair of ribs 113 are provided in the case 11 at intervals, and the component 2 is provided across the pair of ribs 113. The purpose of this arrangement is to suspend the bottom of the component 2, form a heat dissipation channel, and strengthen the heat dissipation of the component 2.

Further, a plurality of hooks 114 are fixed on the outer surface of the box body 11, and the distribution box can be fixed in a hanging manner under a specific use environment.

Specifically, the component 2 includes a DC-DC converter 21, a power module 22, a control module 23, a circuit breaker 24 and a navigation plug 25, the DC-DC converter 21 is fixed on a side wall of the box 11, a portion of the DC-DC converter 21 extends into the through hole 112 and abuts against the heat dissipation assembly 3, the power module 22 is fixed at the bottom of the box 11, the control module 23 is straddled on a pair of raised strips 113, and the circuit breaker 24 and the navigation plug 25 are respectively fixed on the inner wall of the box 11. The DC-DC converter 21, the power supply module 22, the control module 23, the circuit breaker 24 and the aviation plug 25 are mutually separated, gaps are reserved between any two components, all components are reasonably arranged at all positions inside the box 11, the situation of mutual stacking does not exist, and heat dissipation of all components is facilitated.

In addition, the power module 22 and the control module 23 are located at the bottom of the box 11, and the DC-DC converter 21, the circuit breaker 24 and the air plug 25 are located at the side wall of the box 11, so that strong electricity and weak electricity inside the distribution box can be separated, and mutual interference is avoided.

Further, a plurality of embedded holes 115 are formed in the side wall of the case 11, the circuit breaker 24 is fixed on the case 11 and corresponds to the embedded holes 115 one by one, and a sealing plate 116 is arranged on a detachable cover on the embedded holes 115. The sealing plate 116 is provided to prevent rainwater and dust from entering the inside of the distribution box through the embedded hole 115, thereby ensuring the tightness of the distribution box. When the breaker 24 needs to be operated, the sealing plate 116 can be detached and inserted into the embedded hole 115 to operate the breaker 24, and after the operation is completed, the sealing plate 116 is installed back to the embedded hole 115.

Further, the side wall of the box 11 is provided with a wiring groove 117, the aerial plug connector 25 is arranged on the bottom surface of the wiring groove 117 in a penetrating manner, and the height of the aerial plug connector 25 relative to the protruding part of the bottom surface of the wiring groove 117 is smaller than the depth of the wiring groove 117. The avionics connector 25 itself is generally waterproof to the desired level of waterproofing, so the wiring recess 117 need not be closed. However, in order to reduce the probability of the air connector 25 being bumped, the air connector 25 is located entirely within the wiring slot 117. The aviation plug 25 is protected, and the service life of the aviation plug is prolonged.

Specifically, the contact bottom plate 31 completely covers the bottom surface of the heat dissipation groove 111, and a plurality of threaded holes for fixing with the box 11 are formed in the contact bottom plate 31.

Further, the height of the heat dissipation fins 32 is smaller than the depth of the heat dissipation grooves 111. The purpose of this arrangement is to fully place the heat sink 32 inside the heat sink 111, reduce the probability of collision of the heat sink 32, protect the heat sink 32, and extend the service life thereof.

When in use, the contact bottom plate 31 is fixed on the bottom surface of the heat dissipation groove 111, the DC-DC converter 21 is fixed on the side wall of the box 11, the DC-DC converter 21 partially extends into the through hole 112 and is abutted against the heat dissipation component 3, the power module 22 is fixed on the bottom of the box 11, the control module 23 is straddled on the pair of raised strips 113, and the circuit breaker 24 and the air plug 25 are respectively fixed on the inner wall of the box 11; the circuit breakers 24 are fixed on the box 11 and are in one-to-one correspondence with the embedded holes 115, when the circuit breakers 24 need to be operated, the sealing plates 116 can be detached and extend into the embedded holes 115 to operate the circuit breakers 24, and after the operation is completed, the sealing plates 116 are installed back to the embedded holes 115; the air plug connector 25 is completely positioned in the wiring groove 117, so that the air plug connector 25 is protected, and the service life of the air plug connector is prolonged; the heat radiation fins 32 are completely arranged in the heat radiation grooves 111, so that the probability of collision of the heat radiation fins 32 is reduced, the heat radiation fins 32 are protected, and the service life of the heat radiation fins is prolonged.

The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made according to the technical idea of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An electrical distribution box, comprising:

the shell comprises a box body with a top without a cover and an upper cover, wherein the upper cover is detachably connected with the box body, a heat dissipation groove is formed on the outer surface of the box body, a plurality of through holes are formed on the bottom surface of the heat dissipation groove,

2. The electrical box of claim 1, wherein:

the inside of box is provided with a pair of sand grip that mutual interval set up, components and parts stride to locate a pair of sand grip.

3. The electrical box of claim 2, wherein:

the component comprises a DC-DC converter, a power supply module, a control module, a circuit breaker and a navigation plug, wherein the DC-DC converter is fixed on the side wall of the box body, the DC-DC converter part stretches into the through hole and is abutted to the heat dissipation assembly, the power supply module is fixed at the bottom of the box body, the control module is arranged on a pair of raised strips in a straddling mode, and the circuit breaker and the navigation plug are respectively fixed on the inner wall of the box body.

4. A power distribution box as claimed in claim 3, wherein:

the side wall of the box body is provided with a plurality of embedded holes, the circuit breaker is fixed on the box body and corresponds to the embedded holes one by one, and a detachable cover on the embedded holes is provided with a sealing plate.

5. A power distribution box as claimed in claim 3, wherein:

the side wall of the box body is provided with a wiring groove, the aerial plug connector penetrates through the bottom surface of the wiring groove, and the height of the aerial plug connector relative to the extending part of the bottom surface of the wiring groove is smaller than the depth of the wiring groove.

6. The electrical box of claim 1, wherein:

the height of the heat dissipation fins is smaller than the depth of the heat dissipation grooves 111.

7. The electrical box of claim 1, wherein:

a plurality of hooks are fixed on the outer surface of the box body.

8. The electrical box of claim 1, wherein:

the top of the box body without the cover is provided with a circle of sealing gasket.

9. The electrical box of claim 1, wherein:

the contact bottom plate completely covers the bottom surface of the heat dissipation groove, and a plurality of threaded holes for fixing the box body are formed in the contact bottom plate.

10. A power distribution box as claimed in claim 3, wherein:

the DC-DC converter, the power supply module, the control module, the circuit breaker and the navigation plug are mutually separated, and a gap is reserved between any two components.