CN209676696U - A kind of waterproof stainless steel circuit box - Google Patents
A kind of waterproof stainless steel circuit box Download PDFInfo
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- CN209676696U CN209676696U CN201821784762.5U CN201821784762U CN209676696U CN 209676696 U CN209676696 U CN 209676696U CN 201821784762 U CN201821784762 U CN 201821784762U CN 209676696 U CN209676696 U CN 209676696U
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- cable
- waterproof
- circuit box
- casing
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Abstract
The utility model relates to a kind of waterproof stainless steel circuit box, including circuit box cover, circuit cassette holder, nitrile rubber O-ring, sealing bolt, waterproof outlet terminal and cable sleeve, wherein, nitrile rubber O-ring is tightened by linear sealing mode potted circuit box cover and circuit cassette holder, sealing bolt using diagonal manner.When outlet cable is single-core line coaxial cable in circuit box, the cable sleeve includes upper half garden single casing and lower half garden single casing；When outlet cable is multicore cable in circuit box, the cable sleeve includes multicore casing seat and the gold-plated copper bar needle of single.Advantage: 1) elastic recovery properties of nitrile rubber are good, multiple Repeated Compression and it is indeformable.2) safe and reliable using the structure of diagonal compression seal；Only diagonal manner is needed to tighten sealing bolt.Potted circuit box upper end garden mouthful can repeatedly be opened and closed.3) cable sleeve and corrugated flexible hose connection integrated with cable and waterproof outlet terminal are safe and reliable, and waterproof performance significantly improves.
Description
Technical field
The utility model is a kind of waterproof stainless steel circuit box, belongs to technical field of electronic equipment.
Background technique
With the large-scale use of Internet of Things, as the electronic equipment of application terminal, it is widely dispersed throughout city rural
Any corner, it is underwater on the ground.It is well known that the infringement that electronic equipment is most afraid of water.So working in of the electronic equipment in water
One requires, and is exactly waterproof.
Especially without power supply steady in a long-term, the electronic equipment of cell powers, even if not intaking, Jin Jinshui are only leaned on
Molecule invades the inside of electronic equipment, and interior humidity is caused to increase.Self discharge stream is caused to increase, battery short period self-energy consumption
To the greatest extent.Electronic equipment just can not normal and disorderly closedown.
The shell of the electronic equipment to work under water at present, is exactly the material of commonly called " circuit box " body, substantially
It is made of stainless steel.This is because plastics are macromolecular structures, hydrone can pass through the shell of its manufacture.And aluminium alloy can
To prevent hydrone from permeating, but aluminium alloy can corrode dusting in water.Copper alloy also can the pig copper it is green and price is high.It is only stainless
Steel material, without adverse reaction and moderate cost.
In order to reduce cost, universal circuit box in the market is all using stainless sheet steel punch forming.It is few to use not
The circuit box for steel casting and forming of becoming rusty.
As shown in Figure 1, it is a kind of widely used waterproof stainless steel circuit box.Circuit box cover, circuit cassette holder constitute one
Cylindrical container encloses circuit box upper end garden mouthful under the auxiliary of silica gel sealing ring and sealing bolt.Waterproof outlet terminal is close
Seal the outlet of access lines.
As shown in Fig. 2, being a kind of widely used waterproof outlet terminal, waterproof outlet terminal is to the sealing principle of cable
Drive tightens bushing and moves right while screwing compression nut, shrinks song to axle center under the action of tightening gasket end cambered surface
Face compresses the cable cover(ing) rubber wrapped up in the sealing of silica gel neck bush, to achieve the effect that sealing.
But in practice, above-mentioned waterproof stainless steel circuit box have the defects that 2 it is fatal:
(1) silica gel sealing ring belongs to plain cushion class sealing ring.The sealing in circuit box upper end garden mouthful is plane contact, and silica gel is close
There are the perforation notches of multiple sealing bolts for seal, are potential leak regions.The compressibility of silicon rubber is preferable, but elasticity is extensive
It is multiple poor.It require sealing circuit box once open, 2 step measures are had to carry out when ressembling: 1), must replace it is old
Silica gel sealing ring.It every time must be using new without used silica gel sealing ring.And the price of silica gel sealing ring is higher.
2), circuit box cover and circuit cassette holder must be compressed using dedicated tool level, then tightens each sealing bolt.However, i.e.
Make to take the above method, cannot guarantee that 100% waterproof stainless steel circuit box is water-tight.
(2) waterproof outlet terminal only seals cable outer jacket layer, once the impaired water inlet of cable outer jacket layer, water is just
Can be easily along gap between the electric wire and electric wire inside cable, gap between stranded copper wire, invades in circuit box in electric wire.
Cause the utter failure of waterproof measure.
In addition, Exterior cable must be set with corrugated flexible hose under many environment.To protect cable not bitten destruction by mouse.
And there is no any reliable connection structure between current waterproof outlet terminal and corrugated flexible hose.
In conclusion popular waterproof stainless steel circuit box currently on the market, there is also serious technological deficiencies.
Summary of the invention
The utility model proposes a kind of waterproof stainless steel circuit box, and its object is to for existing waterproof stainless steel electricity
The defects of poor waterproof properties existing for the box of road, maintenance cost are high, suit corrugated flexible hose connection is unreliable provides a kind of safe, anti-
Water, reliable waterproof stainless steel circuit box.
The technical solution of the utility model: a kind of waterproof stainless steel circuit box, including circuit box cover 5, circuit cassette holder
9, nitrile rubber O-ring 4, sealing bolt 6, multiple waterproof outlet terminals and cable sleeve；The circuit box cover and circuit cassette holder
Cylindrical container is constituted, nitrile rubber O-ring and sealing bolt closing connection are passed through；Circuit cassette holder two sides are equipped with several routes
Inlet and outlet, waterproof outlet terminal are tightly connected route inlet and outlet；Wherein, the nitrile rubber O-ring is close by linear sealing mode
Envelope circuit box cover and circuit cassette holder, the sealing bolt are tightened using diagonal manner；The cable sleeve and circuit box outlet electricity
Cable is tightly connected, and is inserted in waterproof outlet terminal.
The utility model has the beneficial effects that
1) elastic recovery properties of nitrile rubber are good, can repeatedly Repeated Compression and it is indeformable and cost is relatively low.
1) using the structure of diagonal compression seal, two pass linear sealing can be provided on the sealing surface of each part, compares plane
Sealing is safe and reliable；It is not required to special equipment simultaneously, only diagonal manner is needed to tighten sealing bolt.It 100% reliably can repeatedly beat
Open and close potted circuit box upper end garden mouthful.
2) cable sleeve and corrugated flexible hose connection integrated with cable and waterproof outlet terminal are safe and reliable, and waterproof performance is aobvious
It writes and improves.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of existing stainless steel circuit box.
Attached drawing 2 is waterproof outlet terminal structural schematic diagram.
Attached drawing 3 is a kind of structural schematic diagram of waterproof stainless steel circuit box of the application.
Attached drawing 4 is diagonal plane O-ring bolt presses sealed structural schematic diagram.
Attached drawing 5 is the structural schematic diagram of upper semi-circle single casing and lower half circle single casing.
Attached drawing 6 is the structural schematic diagram of the coaxial cable with single casing.
Attached drawing 7 is the connection schematic diagram of the coaxial cable with single casing Yu waterproof outlet terminal.
Attached drawing 8 is the structural schematic diagram of multicore casing seat and the gold-plated copper bar needle of single.
Attached drawing 9 is the structural schematic diagram of the multicore cable with multicore casing.
Attached drawing 10 is the connection schematic diagram of the multicore cable with multicore casing Yu waterproof outlet terminal.
In figure, 1-1 is waterproof outlet terminal, and 1-2 is silica gel sealing ring, and 1-3 is circuit box cover, and 1-4 is sealing bolt, 1-
5 be waterproof outlet terminal, and 1-6 is circuit cassette holder, and 1-7 is circuit fixed bolt, and 2-1 is silica gel neck bush, and 2-2 is to tighten lining
Set, 2-3 is compression nut, and 2-4 is terminal base, and 2-5 is gasket, and 2-6 is locking nut, and 1 is under waterproof outlet terminal 2 is
Semicircle single casing, 3 be upper semi-circle single casing, and 4 be nitrile rubber O-ring, and 5 be circuit box cover, and 6 be sealing bolt, and 7 be anti-
Water outlet terminal, 8 be multicore casing, and 9 be circuit cassette holder, and 10 be circuit fixed bolt, and 6-1 is coaxial cable, and 6-2 is that electronics fills
Sealing, 8-1 are the gold-plated copper bar needles of single, and 8-2 is multicore casing seat, and 9-1 is core wire in multicore cable.
Specific embodiment
A kind of waterproof stainless steel circuit box, including circuit box cover 5, circuit cassette holder 9, nitrile rubber O-ring 4, sealing bolt
6, multiple waterproof outlet terminals and cable sleeve；The circuit box cover and circuit cassette holder constitute cylindrical container, pass through the fine rubber of fourth
Glue O-ring and sealing bolt closing connection；Circuit cassette holder two sides are imported and exported equipped with several routes, and the sealing of waterproof outlet terminal connects
Link inlet and outlet；Wherein, the nitrile rubber O-ring is described by linear sealing mode potted circuit box cover and circuit cassette holder
Sealing bolt is tightened using diagonal manner；The cable sleeve and circuit box outlet cable are tightly connected, and insert in waterproof leading-out terminal
In son.
When outlet cable is single-core line coaxial cable in circuit box, the cable sleeve includes upper semi-circle single casing
(2) it is one group with lower half circle single casing (3), the upper semi-circle single casing and lower half circle single casing and is equipped with to card structure
It is molded the single casing of manufacture；Upper semi-circle single casing and lower half circle single casing clamp is next wraps single-core line coaxial cable,
Injection electron pouring sealant and single-core line coaxial cable are tightly connected to form the coaxial cable with single casing；The band single casing
Coaxial cable insertion waterproof outlet terminal inner hole in, connect by waterproof outlet terminal compression nut with single bobbin seal.
When outlet cable is multicore cable in circuit box, the cable sleeve is multicore casing (8), the multicore set
Pipe is the cylindrical shroud tube socket of injection molding, studs with the gold-plated copper bar needle of single in multicore casing seat；It is separated in multicore cable
Afterwards, one end of every core electric wire of disconnection and one end of the gold-plated copper bar needle of single are welded to connect, the other end of every core electric wire of disconnection
It is welded to connect with the other end of the gold-plated copper bar needle of single, makes the connection status reinstatement state of multicore cable.In welding fabrication
Multicore casing seat in, injection electron pouring sealant be tightly connected, form the multicore cable with multicore casing；The band multicore set
In the multicore cable insertion waterproof outlet terminal inner hole of pipe, connected by waterproof outlet terminal compression nut and single bobbin seal
It connects.
The cylindrical body outer diameter and waterproof outlet terminal gasket of the cable sleeve insertion waterproof outlet terminal inner hole
Internal diameter is identical, and the internal diameter of the cable sleeve is greater than the outer diameter of cable.
The outer end of cable sleeve connects corrugated flexible hose, and the corrugated flexible hose suit is wrapped in outside cable, is inserted into cable sleeve
Outer end inner hole, be tightly connected by electron pouring sealant.
Technical solutions of the utility model are further illustrated with reference to the accompanying drawing
As shown in Fig. 1, universal circuit box in the market is all using stainless sheet steel punch forming.Seldom using stainless
The circuit box of steel casting and forming.Circuit box cover, circuit cassette holder constitutes a cylindrical container, in silica gel sealing ring and sealing bolt
Auxiliary under enclose circuit box upper end garden mouthful.Waterproof outlet terminal seals up the outlet of access lines.
As shown in Fig. 2, a kind of widely used waterproof outlet terminal drives while screwing compression nut and tightens bushing
It moves right, shrinks curved surface to axle center under the action of tightening gasket end cambered surface, compress package in the sealing of silica gel neck bush
Cable cover(ing) rubber, to achieve the effect that sealing.
As shown in Fig. 3, a kind of completely reliable waterproof stainless steel circuit box, the sealing structure in circuit box upper end garden mouthful by
Plain cushion mode is changed to O-ring mode.For the seepy question in circuit box upper end garden mouthful, corrective measure:
(1) by the silica gel flat gasket structure of Fig. 1, it is changed to the nitrile rubber O-ring structure of Fig. 3.Reason be include: (1)
The elasticity of nitrile rubber is restored more than the strong decades of times of silicon rubber, while the price of nitrile rubber O-ring is far below silicon rubber plain cushion.
(2) structure of diagonal compression seal, can provide 2 linear sealings on the sealing surface of each part.(referring to 4 partial enlargement of attached drawing
Diagonal plane O-ring bolt presses sealed structural schematic diagram).Linear sealing is reliable more than flat seal.In addition 2 sealings are provided,
More insure.It is not required to special equipment, only diagonal manner is needed to tighten sealing bolt.It can 100% reliably repeatedly opening and closing
Potted circuit box upper end garden mouthful.
In Internet of things system, it is necessary to using the radio data-transmission equipment of mobile communication, with wired communication mode
Bus is connect with data collection station.The antenna of wireless communication is connect with communication transceiving circuit plate, is a single-core line coaxial electrical
Cable, and the bus of wired communication mode is a multicore cable, every core wire is made of the copper wire of multiply.Their waterproof
Mode and connection have respectively different requirements, it is necessary to treat respectively.
If attached drawing 6 is shown in 7, the matching for the coax impedance that antenna is connect with communication transceiving circuit plate is immutable
's.It can neither disconnect and weld again.Inherently single structure, the loophole that do not intake out of cable.So exclusively for it
Design a kind of single casing for the injection molding manufacture that semicircle has to card structure.2 identical semicircle single casings are up and down constituted card
Single casing.
As shown in Fig. 7, semicircle single casing has wrapped up coaxial cable to card.Then electronics is perfused in single casing
Casting glue.Constitute the coaxial cable with single casing.It is inserted into the waterproof outlet terminal inner hole of circuit box.It tightens
The compression nut of waterproof outlet terminal.With regard to constituting the circuit box line outlet of the coaxial cable of a reliable waterproof.
If attached drawing 8 is shown in 9, multicore casing used for multicore cable, including the gold-plated copper bar needle of single and is molded into
The cylindrical multicore casing seat of type.Will be separated in multicore cable, the every core electric wire in one end is respectively welded and multicore casing
On the gold-plated copper bar needle of single；The every core electric wire of the multicore cable other end that will be switched off is respectively welded gold-plated with the single of multicore casing
On the other end of copper bar needle.Make the connection status reinstatement state of multicore cable.Electron pouring sealant is injected in multicore casing.Group
At a multicore cable with multicore casing.
As shown in Fig. 10, it is inserted into the waterproof outlet terminal inner hole of the circuit box of Figure 10.Tighten waterproof leading-out terminal
The compression nut of son.With regard to constituting the circuit box line outlet of the multicore cable of a reliable waterproof.
The single copper needle of multicore casing is under the close encirclement of electron pouring sealant, and composition is thick up to 20 together in multicore casing
Millimeter or more waterproof insulating course.When the restrictive coating of multicore cable is damaged water inlet, water encounters the waterproof insulating course of multicore casing
And it is blocked outside circuit box.
The cylindrical body outer diameter of above-mentioned single casing and multicore casing insertion waterproof outlet terminal inner hole, is according to anti-
The manufacture of water outlet terminal gasket internal diameter.As long as to cable outer diameter be less than casing import internal diameter, no matter the outer diameter of cable such as
What changes, and waterproof outlet terminal can be sealed reliably.
The internal diameter of cylindrical body of the above-mentioned single casing and multicore casing in circuit box outer end, is according to protective cable
Corrugated flexible hose outer diameter manufacture.It is soft that ripple is immediately inserted into after the perfusion electron pouring sealant process of single casing or multicore casing
Pipe.After electron pouring sealant hardening, corrugated flexible hose is just ideally combined into one with single casing or multicore casing.To solve
The waterproof outlet terminal connection structure problem of corrugated flexible hose and circuit box.
Claims (5)
1. a kind of waterproof stainless steel circuit box, it is characterized in that including circuit box cover (5), circuit cassette holder (9), nitrile rubber O-ring
(4), sealing bolt (6), multiple waterproof outlet terminals and cable sleeve；The circuit box cover and circuit cassette holder, which constitute cylindrical type, to be held
Device passes through nitrile rubber O-ring and sealing bolt closing connection；Circuit cassette holder two sides are imported and exported equipped with several routes, waterproof
Outlet terminal is tightly connected route inlet and outlet；Wherein, the nitrile rubber O-ring by linear sealing mode potted circuit box cover and
Circuit cassette holder, the sealing bolt are tightened using diagonal manner；The cable sleeve and circuit box outlet cable are tightly connected, and are inserted
In in waterproof outlet terminal.
2. a kind of waterproof stainless steel circuit box according to claim 1, it is characterized in that it is single for working as outlet cable in circuit box
When core wire coaxial cable, the cable sleeve includes upper semi-circle single casing (2) and lower half circle single casing (3), the upper half
Circle single casing and lower half circle single casing are one group of single casing for being equipped with the injection molding manufacture to card structure；Upper semi-circle single set
Pipe and lower half circle single casing clamp are next to wrap single-core line coaxial cable, injects electron pouring sealant and single-core line coaxial cable is close
Envelope connection forms the coaxial cable with single casing；The coaxial cable with single casing is inserted into waterproof outlet terminal inner hole
In, it is connect by waterproof outlet terminal compression nut with single bobbin seal.
3. a kind of waterproof stainless steel circuit box according to claim 1, it is characterized in that it is more for working as outlet cable in circuit box
When core wire cable, the cable sleeve is multicore casing (8), and the multicore casing is the cylindrical shroud tube socket of injection molding, more
The gold-plated copper bar needle of single is studded in core retainer plate tube socket；In multicore cable it is separated after, one end of every core electric wire of disconnection and single
One end of gold-plated copper bar needle is welded to connect, and the other end of every core electric wire of disconnection and the other end of the gold-plated copper bar needle of single weld and connect
It connects, makes the connection status reinstatement state of multicore cable, in the multicore casing seat of welding fabrication, injection electron pouring sealant is close
Envelope connection, forms the multicore cable with multicore casing；The multicore cable with multicore casing is inserted into waterproof outlet terminal
In inner hole, it is connect by waterproof outlet terminal compression nut with single bobbin seal.
4. a kind of waterproof stainless steel circuit box according to claim 1, it is characterized in that cable sleeve insertion waterproof goes out
The cylindrical body outer diameter of line terminals inner hole is identical as waterproof outlet terminal gasket internal diameter, the internal diameter of the cable sleeve
Greater than the outer diameter of cable.
5. a kind of waterproof stainless steel circuit box according to claim 1, it is characterized in that the outer end of the cable sleeve connects
Corrugated flexible hose, the corrugated flexible hose suit are wrapped in outside cable, are inserted into the inner hole of the outer end of cable sleeve, pass through electron pouring sealant
It is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821784762.5U CN209676696U (en) | 2018-10-31 | 2018-10-31 | A kind of waterproof stainless steel circuit box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821784762.5U CN209676696U (en) | 2018-10-31 | 2018-10-31 | A kind of waterproof stainless steel circuit box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209676696U true CN209676696U (en) | 2019-11-22 |
Family
ID=68560983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821784762.5U Active CN209676696U (en) | 2018-10-31 | 2018-10-31 | A kind of waterproof stainless steel circuit box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209676696U (en) |
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2018
- 2018-10-31 CN CN201821784762.5U patent/CN209676696U/en active Active
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