CN211858301U

CN211858301U - Waterproof electromagnetic coil

Info

Publication number: CN211858301U
Application number: CN202020532953.3U
Authority: CN
Inventors: 曹恩德; 周立威; 石孝洪
Original assignee: Ningbo Kaihang Electronic Technology Co ltd
Current assignee: Ningbo Kaihang Electronic Technology Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-11-03
Anticipated expiration: 2030-04-13

Abstract

The utility model discloses a waterproof solenoid, which comprises a skeleton, the cladding has the shell on the skeleton, the skeleton with be equipped with support and coil between the shell, the coil is around locating on the skeleton, the both ends of skeleton are protruding flange that is equipped with respectively, the flange is followed the circumferencial direction of skeleton extends, a plurality of first ring channels have been seted up to the terminal surface of flange, the second ring channel is seted up to the side of flange, first ring channel with all fill in the second ring channel has the shell, first ring channel with the roughness of second ring channel all is greater than Ra 25. The utility model discloses possess simple structure, simple, with low costs and the good advantage of water-proof effects of process.

Description

Waterproof electromagnetic coil

Technical Field

The utility model relates to an electromagnetic coil technical field, in particular to waterproof electromagnetic coil.

Background

The electromagnetic coil is widely used as a component commonly used in the power industry and the electronic industry. However, the performance of the solenoid coil is affected by moisture or other corrosion during use, and ultimately the overall performance of the power supply and electromechanical device. In the prior art, in order to achieve the purpose of insulating and waterproofing an electromagnetic coil, epoxy resin is usually filled on the outer surface of the electromagnetic coil; however, in the manufacturing process, the framework needs to be filled with epoxy resin and then the plastic shell needs to be injected, and the epoxy resin filling needs to be performed by firstly opening a pair of shell molds and then performing an injection molding process after the epoxy resin is filled, so that the material cost is high, the operation time is long, and the efficiency is extremely low; in actual use, the electromagnetic coil generates heat and deforms (expands with heat and contracts with cold) during operation, so that the attached epoxy resin layer generates cracks along with the coil, and the waterproof performance is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a waterproof solenoid, possess simple structure, process are simple, with low costs and the good advantage of water-proof effects.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a waterproof solenoid, includes the skeleton, the cladding has the shell on the skeleton, the skeleton with be equipped with support and coil between the shell, the coil is around locating on the skeleton, the both ends of skeleton are protruding flange respectively, the flange is followed the circumferencial direction of skeleton extends, a plurality of first ring channels have been seted up to the terminal surface of flange, the second ring channel is seted up to the side of flange, first ring channel with all fill in the second ring channel has the shell, first ring channel with the roughness of second ring channel all is greater than Ra 25.

Furthermore, the framework is in an I shape.

Furthermore, the number of the first annular grooves is three, and the first annular grooves are arranged concentrically with each other.

Furthermore, the shell is provided with a lug plate, and the lug plate is electrically connected with the coil.

Further, the shell is made of unsaturated resin.

Further, the support is of a hollow structure.

Further, the support comprises a support body, an upper cover and a lower cover, wherein the upper cover and the lower cover are respectively arranged at two ends of the support body in a covering mode.

The utility model has the advantages that: firstly, the shell is directly coated on the framework, the bracket and the coil are arranged between the framework and the shell, and the coil is wound on the framework, so that the coil is in a relatively sealed structure, and the waterproof purpose is achieved; secondly, the flanges are respectively and convexly arranged at the two ends of the framework, the flanges extend along the circumferential direction of the framework, a plurality of first annular grooves are formed in the end faces of the flanges, second annular grooves are formed in the side faces of the flanges, the shells are filled in the first annular grooves and the second annular grooves, the surface roughness of the first annular grooves and the surface roughness of the second annular grooves are respectively greater than Ra25, the first annular grooves and the second annular grooves are arranged, the contact area of the plastic-coated shells and the framework is increased, the surface roughness of the plastic-coated shells is respectively greater than Ra25, the adhesion between the shells and the framework is improved, the sealing performance is improved, the improved waterproof performance is realized, and the normal work of coils arranged between the shells and the framework is ensured; generally, the utility model discloses the advantage that has possessed simple structure, process are simple, with low costs and water-proof effects is good.

Drawings

Fig. 1 is an exploded schematic view of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

Fig. 3 is an enlarged schematic view at a in fig. 2.

Fig. 4 is a schematic structural diagram of the middle frame of the present invention.

Fig. 5 is an exploded view of the middle bracket of the present invention.

Shown in the figure: 1-a framework; 11-a flange; 111-a first annular groove; 112-a second annular groove; 2-a housing; 3-a scaffold; 31-a stent body; 32-upper cover; 33-lower cover; 4-a coil; 5-a lug plate.

Detailed Description

For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting characteristic description is now performed by combining the drawings of the present invention:

as shown in fig. 1 to 5, a waterproof electromagnetic coil, including skeleton 1, the cladding has shell 2 on skeleton 1, be equipped with support 3 and coil 4 between skeleton 1 and the shell 2, coil 4 is around locating on skeleton 1, the both ends of skeleton 1 are protruding respectively to be equipped with flange 11, flange 11 extends along the circumferencial direction of skeleton 1, a plurality of first ring channels 111 have been seted up to the terminal surface of flange 11, second ring channel 112 is seted up to the side of flange 11, all pack in first ring channel 111 and the second ring channel 112 and have shell 2, the surface roughness of first ring channel 111 and second ring channel 112 all is greater than Ra 25.

The framework 1 is in an I shape; three first annular grooves 111 are arranged and are concentric with each other; specifically, a through hole for installing the iron core is formed in the middle of the framework 1.

The shell 2 is provided with three lugs 5, the lugs 5 are electrically connected with the coil 4, the normal work of the coil 4 is guaranteed, and the installation and connection are convenient, and the preferred lugs 5 are all made of copper materials; the shell 2 is made of unsaturated resin, so that the chemical property is more excellent, and the service life is prolonged to a certain degree.

The bracket 3 is a hollow structure; the bracket 3 comprises a bracket body 31, an upper cover 32 and a lower cover 33, wherein the upper cover 32 and the lower cover 33 are respectively arranged at two ends of the bracket body 31 in a covering manner; specifically, the through-holes have all been seted up on support body 31, upper cover 32 and the lower cover 33, and upper cover 32 and lower cover 33 joint respectively at the upper and lower both ends of support body 31, connect more firm stability, and the convenient skeleton 1 that will have coil 4 installs wherein, and support 3 has played the effect of strengthening rib to shell 2 for shell 2 is firm more stable, increase of service life.

Specifically, in making the utility model discloses the time, twine coil 4 on skeleton 1 earlier, install skeleton 1 that will have coil 4 in support 3 again, mould the technology cladding on skeleton 1 through the package with shell 2 at last, while is connected and is in the circuit on-state with lug 5 and coil 4 completion, and make lug 5 protrusion in the shell 2 surface, the connection of the circuit of being convenient for, make from this that shell 2 fills in first ring channel 111 and second ring channel 112, the clearance between skeleton 1 and the support 3 has also been filled with shell 2, make coil 4 be in relatively sealed structure, waterproof purpose has been reached.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. A waterproof electromagnetic coil is characterized in that: including skeleton (1), the cladding has shell (2) on skeleton (1), skeleton (1) with be equipped with support (3) and coil (4) between shell (2), coil (4) are around locating on skeleton (1), the both ends of skeleton (1) are protruding flange (11) of being equipped with respectively, flange (11) are followed the circumferencial direction of skeleton (1) extends, a plurality of first ring channel (111) have been seted up to the terminal surface of flange (11), second ring channel (112) are seted up to the side of flange (11), first ring channel (111) with all fill in second ring channel (112) shell (2), first ring channel (111) with the roughness of second ring channel (112) all is greater than Ra 25.

2. The waterproof electromagnetic coil as claimed in claim 1, wherein: the framework (1) is in an I shape.

3. The waterproof electromagnetic coil as claimed in claim 2, wherein: the number of the first annular grooves (111) is three, and the first annular grooves are arranged concentrically with each other.

4. A water resistant electromagnetic coil as claimed in claim 3 wherein: the coil is characterized in that a lug plate (5) is arranged on the shell (2), and the lug plate (5) is electrically connected with the coil (4).

5. The waterproof electromagnetic coil as claimed in claim 4, wherein: the shell (2) is made of unsaturated resin.

6. The waterproof electromagnetic coil as claimed in claim 5, wherein: the support (3) is of a hollow structure.

7. The waterproof electromagnetic coil as claimed in claim 6, wherein: the support (3) comprises a support body (31), an upper cover (32) and a lower cover (33), wherein the upper cover (32) and the lower cover (33) are respectively arranged at two ends of the support body (31) in a covering mode.