CN211655977U

CN211655977U - Explosion-proof waterproof electronic box

Info

Publication number: CN211655977U
Application number: CN201922084529.7U
Authority: CN
Inventors: 曾海波
Original assignee: Xiaoerduo Guangdong Electronic Technology Co ltd
Current assignee: Xiaoerduo Guangdong Electronic Technology Co ltd
Priority date: 2018-12-18
Filing date: 2019-11-27
Publication date: 2020-10-09
Anticipated expiration: 2029-11-27
Also published as: CN110677016A; CN109660110A

Abstract

The utility model relates to an explosion-proof waterproof electronic box, including the electronic box casing that has the inner chamber, the material of electronic box casing is metal material, the thinnest wall thickness of electronic box casing is 6.0mm at least, be provided with two at least wiring interfaces on the electronic box casing, the wiring interface is used for being connected with a wire, be provided with water joint on the wiring interface, water joint be used for with wire fixed seal set up in on the wiring interface, the last sealed waterproof part that is provided with of water joint. The explosion-proof waterproof electrical box realizes the sealing and water-proof of the electrical box shell through the sealing and water-proof component, so that the waterproof grade of the electrical box structure reaches IP 68; still through the thinnest wall thickness of electronic box casing at least 6.0mm for the explosion-proof standard of this electronic box structure reaches the requirement of Ex e llc T6 Gb, thereby lets the electronic box of this structure have waterproof explosion-proof function, has prolonged electrical equipment's life, has made things convenient for user's use.

Description

Explosion-proof waterproof electronic box

Technical Field

The utility model relates to an explosion-proof waterproof technical field of electronic box specifically, relates to an explosion-proof waterproof electronic box.

Background

The power supply is a device for supplying power to electronic equipment, also called a power supply, and is provided for the electronic equipment and power supply conversion equipment of electronic appliances. The power supply is used in special occasions, such as oil field places, underwater places, chemical places and the like under severe environment conditions, the requirement on the electric box of the power supply is higher, the electric box of the power supply is required to have an explosion-proof and waterproof function, and the electric box of the power supply is mainly used for connection, installation or control of electronic equipment and the like.

Traditional power electronic box does not have waterproof explosion-proof function to appear easily because the electronic box leaks or receives external shock and the electrical equipment that leads to damages, shortened electrical equipment's life, reduced work efficiency when increasing the cost, bring inconvenience for user's use, and the explosion of electronic box can cause the destruction to electronic box all ring border, can cause the emergence of incident seriously.

Therefore, it is necessary to provide an explosion-proof and waterproof electrical box to solve the deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an explosion-proof and waterproof electronic box, this explosion-proof and waterproof electronic box.

The technical scheme of the utility model as follows:

an explosion-proof waterproof electrical box comprises an electrical box shell with an inner cavity, wherein the electrical box shell is made of a metal material, the thinnest wall of the electrical box shell is at least 6.0mm, and at least two wiring interfaces are arranged on the electrical box shell;

the wiring interface is used for being connected with a lead, a waterproof joint is arranged on the wiring interface,

the waterproof connector is used for sealing the lead on the wiring interface, and a sealing waterproof part is arranged on the waterproof connector.

Preferably, the material of electronic box casing is the aluminum product, two the wiring interface is located the both ends setting of electronic box casing respectively.

Preferably, two ends of the electrical box shell are respectively provided with two wiring interfaces.

Preferably, the electrical box shell comprises a lower shell and an upper shell covering the lower shell; the lower shell is provided with a connecting blind hole, a first connecting through hole is formed in the upper shell correspondingly, and a fastener penetrates through the first connecting through hole to be inserted into the connecting blind hole so as to arrange the upper shell on the lower shell.

Preferably, a sealing ring is arranged between the upper shell and the lower shell, and a second connecting through hole corresponding to the first connecting through hole is formed in the sealing ring.

Preferably, an O-ring is further disposed between the fastening member and the top end surface of the upper housing, and a gasket is disposed between the fastening member and the bottom end surface of the upper housing.

Preferably, the wiring interface and the lower shell are of an integral structure, a circular truncated cone-shaped step is arranged on the interface of the wiring interface, and the circular truncated cone-shaped step divides the interface of the wiring interface into a first interface and a second interface.

Preferably, the sealing waterproof component comprises a first waterproof rubber ring, a second waterproof rubber ring and a waterproof plug, and two ends of the first waterproof rubber ring are end faces of a circular truncated cone shape.

Preferably, the waterproof connector further comprises a connector shell with an inner cavity, a nut and a connector end cover covering the connector shell and connected with the connector shell in a threaded mode, an annular step is arranged in the inner cavity of the connector shell, and the cavity of the connector shell is divided into a first cavity and a second cavity through the annular step.

Preferably, the end face of one end circular truncated cone of the first waterproof rubber ring is in interference fit with the end face of the circular truncated cone, and the end face of the other end circular truncated cone of the first waterproof rubber ring is in interference fit with the end face of the first cavity to fixedly arrange the first waterproof rubber ring in the joint housing.

Preferably, the bottom end face of the second waterproof rubber ring abuts against the end face of the annular step and is arranged in the second cavity, the outer wall face of the second waterproof rubber ring abuts against the inner wall face of the nut so as to enable the nut to be sleeved and arranged on the outer wall face of the second waterproof rubber ring, and the outer wall face of one end of the nut abuts against the inner wall face of the second cavity so as to enable the nut and the second waterproof rubber ring to be fixedly arranged in the joint shell.

Preferably, the second waterproof rubber ring is a T-shaped waterproof ring.

Preferably, the inner diameter of the first interface, the inner diameter of the first waterproof rubber ring, the inner diameter of the annular step and the inner diameter of the second waterproof rubber ring are the same in size.

Preferably, a rubber plug matched with the cavity of the waterproof joint is plugged in the cavity of the waterproof joint.

The utility model has the advantages that: compared with the prior art, the explosion-proof waterproof electric box realizes the sealing and the water prevention of the electric box shell through the sealing and waterproof components arranged in the electric box shell and the waterproof joints of the wiring interfaces, so that the waterproof grade of the electric box structure reaches IP 68; the electrical box shell is made of metal materials, and the thinnest wall thickness of the electrical box shell is at least 6.0mm, so that the explosion-proof standard of the electrical box structure meets the requirement of Ex e llc T6 Gb. The structure of this electronic box has waterproof explosion-proof function to avoided having now because the electronic box leaks or receives external shock and the electrical equipment that leads to damages, prolonged electrical equipment's life, improved work efficiency when reduce cost, made things convenient for user's use.

Description of the drawings:

fig. 1 is the structural schematic diagram of the explosion-proof and waterproof electrical box of the utility model.

Fig. 2 is an exploded view of fig. 1 according to the present invention.

Fig. 3 is a schematic structural view of the explosion-proof and waterproof electrical box of the present invention at another angle.

Fig. 4 is a cross-sectional view of the explosion-proof and waterproof electrical box of the present invention.

Fig. 5 is an enlarged view of fig. 4A according to the present invention.

Fig. 6 is the structural schematic diagram of the explosion-proof and waterproof electronic box in use state of the utility model.

Detailed Description

In order to make the technical solution and technical effects of the present invention more clearly understood, the present invention is further described below with reference to the following detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "disposed on" or "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the explosion-proof and waterproof electrical box of the present invention can be used for connecting electrical devices in oil field and underwater environment, and includes an electrical box casing 100 having an inner cavity, at least two wiring interfaces 110 disposed on the electrical box casing 100, and a waterproof joint 200 disposed on the wiring interfaces 110. The two wiring interfaces 110 are respectively disposed at two ends of the electrical box housing 100. In the present embodiment, two wiring interfaces 110 are respectively disposed at two ends of the electrical box housing 100.

The explosion-proof waterproof electrical box is of an increased safety type structure, wherein the electrical box shell 100 is made of a metal material, the material of the electrical box shell 100 is preferably an aluminum material, and the thinnest wall of the electrical box shell 100 is at least 6.0 mm.

Referring to fig. 2, the electrical box housing 100 includes a lower housing 120 and an upper housing 130 covering the lower housing 120. Specifically, the lower housing 120 is provided with a blind connecting hole 121, and a first connecting through hole 131 is correspondingly formed in the upper housing 130, and a fastening member 101 is inserted into the blind connecting hole 121 through the first connecting through hole 131 to fix the upper housing 130 on the lower housing 120. The number of the blind connecting holes 121 is the same as that of the first connecting through holes 131, and may be plural. In the present embodiment, the fastener 101 is preferably a screw.

Referring to fig. 2, a sealing ring 140 is disposed between the upper housing 130 and the lower housing 120, the sealing ring 140 is provided with a second connecting through hole 141 corresponding to the first connecting through hole 131, and the sealing ring 140 is used for sealing and waterproofing. An O-shaped sealing ring 102 is further arranged between the fastener 101 and the top end face of the upper shell 130, and the O-shaped sealing ring 102 is used for sealing; a gasket 103 is disposed between the fastening member 101 and the bottom end surface of the upper housing 130, the gasket 103 is preferably an O-shaped plastic gasket, and the gasket 103 mainly has functions of leakage, water resistance, vibration reduction, wear reduction, and the like.

Referring to fig. 2, the connection interface 110 and the lower housing 120 are integrated, a circular truncated cone-shaped step 111 is disposed on the connection interface of the connection interface 110, and the circular truncated cone-shaped step 111 divides the connection interface of the connection interface 110 into a first interface 112 and a second interface 113. The first port 112 and the second port 113 are cylindrical.

The waterproof connector 200 has a cavity for accommodating a wire, the waterproof connector 200 includes a connector housing 210 having an inner cavity, and a first waterproof rubber ring 220, a second waterproof rubber ring 230 and a nut 240 embedded in the connector housing 210, and the waterproof connector 200 further includes a connector end cap 250 covering the connector housing 210 and the nut 240.

Referring to fig. 2 and 4, the connector housing 210 is screwed to the second interface 113 to fix the waterproof interface on the connection interface 110, and a waterproof plug 260 is further disposed between the connector housing 210 and the end surface of the connection interface 110.

Referring to fig. 2 to 5, an annular step 211 is disposed in an inner cavity of the joint housing 210, the annular step 211 divides the cavity of the joint housing 210 into a first cavity 212 and a second cavity 213, the first waterproof rubber ring 220 is disposed in the first cavity 212, and an outer wall surface of the first waterproof rubber ring 220 abuts against an inner wall surface of the first cavity 212; the second waterproof rubber ring 230 and the nut 240 are arranged in the second cavity 213, the bottom end face of the second waterproof rubber ring 230 is abutted against the end face of the annular step 211, the outer wall face of the second waterproof rubber ring 230 is abutted against the inner wall face of the nut 240 to sleeve and arrange the nut 240 on the outer wall face of the second waterproof rubber ring 230, and the outer wall face at one end of the nut 240 is also abutted against the inner wall face of the second cavity 213 to fixedly arrange the nut 240 and the second waterproof rubber ring 230 in the second cavity 213.

Referring to fig. 5, two ends of the first waterproof rubber ring 220 are truncated cone-shaped, a truncated cone end surface of one end of the first waterproof rubber ring 220 is in interference fit and abutting contact with a step end surface of the truncated cone-shaped step 111, and a truncated cone end surface of the first waterproof rubber ring 220 at the other end is in interference fit and abutting contact with an end surface of the first cavity 212 of the joint housing 210, so that the first waterproof rubber ring 220 and the joint housing 210 are disposed in the second interface 113.

Referring to fig. 5, the inner diameter of the first interface 112, the inner diameter of the first waterproof rubber ring 220, the inner diameter of the annular step 211 and the inner diameter of the second waterproof rubber ring 230 are the same. In this embodiment, the wire sequentially passes through the first interface 112, the first waterproof rubber ring 220, the annular step 211, and the second waterproof rubber ring 230 from the inner cavity of the electrical box housing 100, passes through the nut 250, is exposed outside the electrical box housing 100, and is connected with the first interface 112, the first waterproof rubber ring 220, the annular step 211, the second waterproof rubber ring 230, and the nut 250 in an interference fit manner.

The second waterproof rubber ring 230 is a T-shaped waterproof ring.

Referring to fig. 1, mounting connection blocks 122 are protruded from four corners of the bottom end surface of the lower housing 120, mounting holes 123 are formed in the mounting connection blocks 122, and the mounting connection blocks 122 facilitate the mounting of the electrical box.

Referring to fig. 6, when there is no wire connection in the cavity of the waterproof connector 200 of the explosion-proof and waterproof electrical box, the plug 104 matching with the cavity of the waterproof connector 200 is plugged in the cavity of the waterproof connector 200.

The electrical box structure is connected with the inner wall surface of the circular truncated cone of the second interface of the wiring interface 110 in a matching way through the first waterproof rubber ring 220, and a waterproof plug 260 arranged between the end surface of the wiring interface 110 and the connector shell 210 is used for waterproof sealing of the wiring interface 110 of the electrical box structure; the waterproof connection of the waterproof connector 200 and the wire is realized by adopting the interference fit connection of the wire and the waterproof connector 200 and further arranging a second waterproof rubber ring 230 on the waterproof connector 200. The upper and lower casings of the power supply casing 100 of the electric box are also sealed and waterproof by a seal ring 140, an O-ring 102 and a gasket 103. The electric box structure is subjected to water inlet test through IEC 60529 and 2013(IP68 water depth is 10 m), and through test, the waterproof grade of the electric box of the structure reaches IP 68.

The electronic box of this structure is also enclosed by GB3836.1-2010 section 1 of explosive environment: general requirements for equipment and GB3836.3-2010 section 3 of explosive environment: by the national explosion-proof detection of the increased safety type ' e ' protected equipment ', the electronic box of the structure is detected to accord with an explosion-proof mark: ex e llc T6 Gb.

The explosion-proof and waterproof electric box realizes the sealing and the water prevention of the electric box shell through the sealing and waterproof components arranged in the electric box shell and the waterproof joints of the wiring interfaces, so that the waterproof grade of the electric box structure reaches IP 68; the electrical box shell is made of metal materials, and the thinnest wall thickness of the electrical box shell is at least 6.0mm, so that the explosion-proof standard of the electrical box structure meets the requirement of Ex e llc T6 Gb. The structure of this electronic box has waterproof explosion-proof function to avoided having now because the electronic box leaks or receives external shock and the electrical equipment that leads to damages, prolonged electrical equipment's life, improved work efficiency when reduce cost, made things convenient for user's use.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.

Claims

1. An explosion-proof and waterproof electric box comprises an electric box shell with an inner cavity and is characterized in that,

the electrical box shell is made of a metal material, the thinnest wall of the electrical box shell is at least 6.0mm, and at least two wiring interfaces are arranged on the electrical box shell;

the wiring interface is used for being connected with a wire, and a waterproof joint is arranged on the wiring interface;

2. The explosion-proof and waterproof electrical box according to claim 1, wherein the electrical box housing comprises a lower housing and an upper housing covering the lower housing; the lower shell is provided with a connecting blind hole, a first connecting through hole is formed in the upper shell correspondingly, and a fastener penetrates through the first connecting through hole to be inserted into the connecting blind hole so as to arrange the upper shell on the lower shell.

3. The explosion-proof and waterproof electrical box according to claim 2, wherein the wiring interface and the lower housing are of an integral structure, a circular truncated cone-shaped step is arranged on the interface of the wiring interface, and the circular truncated cone-shaped step divides the interface of the wiring interface into a first interface and a second interface.

4. The explosion-proof and waterproof electrical box according to claim 3, wherein the sealing and waterproof member comprises a first waterproof rubber ring, a second waterproof rubber ring and a waterproof plug, and both ends of the first waterproof rubber ring are truncated cone-shaped end surfaces.

5. The explosion-proof and waterproof electrical box according to claim 4, wherein the waterproof joint further comprises a joint housing having an inner cavity, a nut, and a joint end cap covering the joint housing and being in threaded connection with the joint housing, wherein an annular step is provided in the inner cavity of the joint housing, and the annular step divides the cavity of the joint housing into a first cavity and a second cavity.

6. The explosion-proof waterproof electronic box according to claim 5, wherein a bottom end face of the second waterproof rubber ring abuts against an end face of the annular step and is arranged in the second cavity, an outer wall face of the second waterproof rubber ring abuts against an inner wall face of the nut so as to sleeve the nut on the outer wall face of the second waterproof rubber ring, and an outer wall face of one end of the nut further abuts against an inner wall face of the second cavity so as to fixedly arrange the nut and the second waterproof rubber ring in the joint housing.

7. The explosion-proof waterproof electrical box of claim 5, wherein the circular truncated cone end face of one end of the first waterproof rubber ring is in interference fit abutting connection with the step end face of the circular truncated cone-shaped step, and the circular truncated cone end face of the first waterproof rubber ring at the other end is in interference fit abutting connection with the first cavity end face so as to fixedly arrange the first waterproof rubber ring in the joint housing.

8. The explosion-proof and waterproof electrical box according to claim 2, wherein a sealing ring is disposed between the upper housing and the lower housing, and the sealing ring is provided with a second connecting through hole corresponding to the first connecting through hole.

9. The explosion-proof and waterproof electrical box as claimed in claim 2 or 8, wherein an O-ring is further provided between the fastening member and the top end face of the upper housing, and a gasket is provided between the fastening member and the bottom end face of the upper housing.

10. The explosion-proof and waterproof electrical box according to claim 1, wherein the electrical box housing is made of aluminum, and two ends of the electrical box housing are respectively provided with two wiring interfaces.