CN216818004U

CN216818004U - Fool-proof shell and network transformer

Info

Publication number: CN216818004U
Application number: CN202220232743.1U
Authority: CN
Inventors: 杜效白; 阳东旭
Original assignee: Deyang Zhida Precision Electronics Co ltd
Current assignee: Deyang Zhida Precision Electronics Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-06-24
Anticipated expiration: 2032-01-27

Abstract

The utility model relates to a fool-proof shell and a network transformer, and belongs to the technical field of electronic information networks. This network transformer is including preventing slow-witted shell and coil, prevents slow-witted shell and includes casing and the lid that has the direction sign, is provided with many PIN needles on the lateral wall of casing, and on the casing was located to the lid, the both ends of casing were provided with two joint portions respectively, and the interval that is located between the joint portion at casing both ends varies, and one side of lid is provided with the joint tongue that matches with joint portion. According to the foolproof shell and the network transformer, the directions of the shell and the cover are consistent through the foolproof structure of the shell and the cover, the cover can be covered on the shell, the direction of the network transformer is positioned through the direction mark on the cover, and therefore the network transformer is installed on a circuit board according to the appointed direction, and time and labor are saved.

Description

Fool-proof shell and network transformer

Technical Field

The utility model belongs to the technical field of electronic information networks, and particularly relates to a fool-proof shell and a network transformer.

Background

In the existing electronic network transformer, filter and the like, a coil is placed in a shell, a lead terminal of the coil needs to be wound or welded at the end part of an inner PIN foot of the shell of the transformer, so that the lead terminal is fixed, and then the other end of the coil is spliced or placed on a circuit board in a surface mounting mode and then welded.

Some electronic network transformers and the like typically require a cover to be placed over the housing to protect the coils within the housing or the PIN on the side walls. Sometimes, a mark is arranged on the cover to distinguish the direction of the network transformer, etc., because the direction of the network transformer is different, the relationship between the PIN needle and the lead is different, and if the direction of the network transformer is wrong, the network transformer can not be used. When the cover is covered on the shell, workers are required to carefully distinguish the direction of the shell, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the embodiments of the present invention is to provide a fool-proof housing and a network transformer, which ensure that directions of a housing and a cover are consistent through a fool-proof structure of the housing and the cover, so that the cover can be covered on the housing, and the direction of the network transformer is located through a direction mark on the cover, so that the network transformer is installed on a circuit board according to a designated direction, which is time-saving and labor-saving.

The embodiment of the utility model is realized by the following steps:

the embodiment of the utility model provides a foolproof shell which comprises a shell and a cover with a direction mark, wherein a plurality of PIN needles are arranged on the side wall of the shell, the cover is covered on the shell, two ends of the shell are respectively provided with two clamping parts, the distances between the clamping parts positioned at the two ends of the shell are unequal, and one side of the cover is provided with a clamping tongue matched with the clamping parts.

As an alternative of the above embodiment, the clamping portion is recessed inward, the bottom of the clamping portion is provided with a fixed step, and the clamping tongue is hooked on the fixed step.

As an alternative to the above embodiment, the latch tongue has elasticity, and the bottom end of the latch tongue has a guide surface inside, and the guide surface is inclined.

As an alternative to the above embodiment, the top surface of the lid is provided with a blind hole at one end.

As an alternative to the above embodiment, a preset notch is provided at the top of one end of the housing.

As an alternative to the above embodiment, the cover extends over the PIN and the PIN is exposed.

As an alternative to the above embodiment, the side wall of the housing is provided with a wire management island, the middle of the winding end of the PIN is provided with a winding recess, and the height of the wire management island is between the winding recess and the top end of the winding end.

As an alternative to the above embodiment, the side wall of the housing is provided with guide slopes, the guide slopes are disposed on two sides of the wire management island, and the guide slopes are inclined and extend from the bottom of the wire management island to the winding end.

As an alternative of the above embodiment, the PIN is mounted on a mounting wall of the housing, a bottom surface of the mounting wall and a bottom surface of a middle part of the housing are stepped, a welding end of the PIN is bent outward and attached to the bottom surface of the mounting wall, and a winding end of each of two adjacent PINs is recessed.

The embodiment of the utility model also provides a network transformer which comprises a coil and the foolproof shell, wherein the coil is arranged in the shell, and a lead is wound on one end of the PIN.

The utility model has the beneficial effects that:

according to the foolproof shell and the network transformer, the foolproof structure of the shell and the cover is adopted, the direction of the shell is consistent with that of the cover, the cover can be covered on the shell, the direction of the network transformer is positioned through the direction mark on the cover, and therefore the network transformer is installed on the circuit board according to the designated direction, and time and labor are saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts. The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings. Like reference numerals refer to like parts throughout the drawings. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the utility model.

Fig. 1 is a first schematic structural diagram of a foolproof housing according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of the fool-proof housing according to the embodiment of the present invention;

fig. 3 is a third schematic structural diagram of the fool-proof housing according to the embodiment of the present invention;

fig. 4 is a first structural diagram of the housing and the PIN according to the embodiment of the present invention;

fig. 5 is a second structural schematic diagram of the housing and the PIN according to the embodiment of the present invention;

fig. 6 is a third schematic structural diagram of the housing and the PIN according to the embodiment of the present invention;

fig. 7 is a fourth schematic structural diagram of the housing and the PIN according to the embodiment of the present invention;

FIG. 8 is a first schematic structural diagram of a cover according to an embodiment of the present invention;

FIG. 9 is a second schematic structural diagram of a cover according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram three of a cover according to an embodiment of the present invention.

Icon:

11-fool-proof housing;

110-a housing; 111-a snap-in part; 112-fixed step; 113-presetting a gap; 114-wire management islands; 115-a guide slope; 120-PIN needle; 121-a winding end; 122-a welding end; 123-winding recess; 130-a lid; 131-a clamping tongue; 132-a guide surface; 133-blind hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Embodiments of the present invention provide a network transformer for mounting on a circuit board, where the network transformer may be a transformer or a filter, etc.

The network transformer includes a coil and a fool-proof housing 11 (see fig. 1-3), and the coil is installed in the fool-proof housing 11 (not shown in the figures, and may refer to the prior art, which is not described herein again).

The structure of the coil can refer to the prior art, and mainly comprises an iron core and an enameled wire, wherein the enameled wire is wound on the iron core, the end part of the enameled wire is a lead wire, and the lead wire is used for being electrically connected with the outside.

The number of coils is not limited, and in general, two coils may be in a group, and a group of coils may include a primary coil and a secondary coil, etc.

The foolproof housing 11 includes a housing 110, a PIN 120, and a cover 130, and the foolproof housing 11 can be manufactured, sold, etc. independently.

The specific structure of the housing 110 is as follows: the shape of the housing 110 is not limited, and for example, the housing 110 is substantially rectangular parallelepiped, irregular, or the like, and the housing 110 may be injection molded by injection molding.

Referring to fig. 4-7, the housing 110 is provided with a receiving cavity for receiving a coil, and in the present embodiment, the housing 110 includes a bottom wall, two mounting walls and two end walls, and the two mounting walls and the two end walls are both connected to the bottom wall, wherein the two mounting walls are disposed opposite to each other, and the two end walls are disposed opposite to each other.

The top end of the mounting wall can be arranged in a step shape, and a certain height difference can exist between the bottom surface of the mounting wall and the bottom surface of the bottom wall.

A plurality of wire management islands 114 can be arranged on the installation wall, a wire management groove is formed between two adjacent wire management islands 114 or between the wire management island 114 and the end wall, the bottom surface of the wire management groove is a guide slope 115, the guide slope 115 can be inclined, the guide slope 115 extends upwards and outwards from the bottom of the wire management island 114, and the leads of the coil can be separated by the wire management islands 114 and attached to the guide slope 115.

The height of the end arm can be higher than the height of the installation wall, a preset notch 113 can be arranged at the top of one of the end walls, the shape of the preset notch 113 is not limited, for example, in the embodiment, the preset notch 113 is semi-cylindrical, and the preset notch 113 can be used for positioning the direction of the shell 110, so that the worker can conveniently recognize the preset notch. Of course, the direction of the housing 110 can also be determined according to the distance between the clamping parts 111.

In addition, two clamping portions 111 can be arranged on each end wall, the shapes of the clamping portions 111 are not limited, in the embodiment, the clamping portions 111 are recessed inwards, and the bottom of the clamping portions 111 is provided with a fixed step 112, namely, the bottom of the clamping portions 111 is recessed inwards relative to the upper half part to form a step.

The distance between two clamping portions 111 located at the same end of the casing 110 is a preset interval, and two preset intervals located at two ends of the casing 110 are different, that is, the distance between two clamping portions 111 located at one end of the casing 110 is smaller than the distance between two clamping portions 111 located at the other end of the casing 110.

In the present embodiment, the two clamping portions 111 at the same end of the housing 110 are symmetrical with respect to the middle of the end wall.

The PIN PINs 120 are arranged on the mounting wall, the number of the PIN PINs 120 is not limited, and can be set according to requirements, for example, 12 PIN PINs 120, 8 PIN PINs 120 and the like are arranged on each mounting wall. Of course, in other embodiments, it is also possible that one of the side walls of the housing 110 is a mounting wall, or two adjacent side walls of the housing 110 are mounting walls.

The PIN 120 is not limited in style, such as a patch type, a PIN insertion type, a wire bonding type, a wire winding type, and the like, and in this embodiment, the PIN 120 has the following structure: PIN needle 120 adopts SMD, wire-wound structure, and PIN needle 120 includes wire winding end 121 and welding end 122, and wire winding end 121 exposes from the top of installation wall, and welding end 122 exposes from the bottom of installation wall.

The middle part of the winding end 121 is provided with a winding concave part 123, the winding concave part 123 shrinks inwards, the middle part is narrow, the two ends are wide, the winding concave part 123 is used for winding a lead, the winding end 121 faces the wire arranging groove, and the guide slope 115 extends to the winding end 121.

The two adjacent winding ends 121 can be recessed downwards, and the recessed part is flush with the edge of the mounting wall, so that the quality of the shell 110 can be reduced, winding is convenient, and the like.

The height of the wire arranging island 114 is between the top ends of the winding concave part 123 and the winding end 121, so that the lead can be completely fixed in the wire arranging groove, the lead is not easy to move in the winding process, and the fixing effect is better.

The welding end 122 is bent outwards and is attached to the bottom surface of the mounting wall, wherein the top surface of the welding end 122 is higher than the bottom surface of the bottom wall, and the bottom surface of the welding end 122 is lower than the bottom surface of the bottom wall.

After the coil is loaded in the accommodating cavity of the housing 110 and the lead wire is wound around the winding end 121, the opening of the accommodating cavity needs to be closed by using the cover 130 to protect the coil and the PIN 120 and the like.

The shape of the cover 130 is not limited, and in the embodiment, as shown in fig. 8 to 10, the cover 130 has a rectangular plate-shaped structure, and the length and the width of the cover 130 can be matched with those of the housing 110.

Four clamping tongues 131 are arranged on the bottom side of the cover 130, two clamping tongues 131 are arranged at each end of the cover 130, the clamping tongues 131 are matched with the clamping portion 111, and the clamping tongues 131 can be clamped on the clamping portion 111.

In order to cooperate with the clamping portion 111 of the housing 110 to achieve the fool-proof effect, the clamping tongues 131 at the two ends of the cover 130 have different distances therebetween, that is, the distance between two clamping tongues 131 at one end of the cover 130 is smaller than the distance between two clamping tongues 131 at the other end of the cover 130.

In this embodiment, the following scheme can be adopted but not limited to the latch tongue 131: the latch tongue 131 includes an extending portion and a hook portion, the extending portion extends downward, the extending portion may be made of a material having certain elasticity, for example, a plastic material, and can be elastically deformed to a certain extent, the hook portion is disposed at a bottom end of the extending portion, and the hook portion can hook the fixing step 112 of the latch portion 111.

The inner side of the bottom end of the latch tongue 131 is provided with a guide surface 132, and the guide surface 132 is inclined. When the cover 130 is covered on the housing 110, the guide surface 132 contacts the engaging portion 111 first, and when the guide surface 132 moves downward, the engaging portion 111 can spread the engaging tongue 131, so that the engaging tongue 131 can be engaged with the engaging portion 111 smoothly.

Wherein, can set up direction sign on lid 130, the type of direction sign is not limited, for example, the interval between joint tongue 131 is different also can regard as direction sign to use, in this embodiment, has still provided following scheme: the blind hole 133 is arranged at one end of the top surface of the cover 130, the blind hole 133 can be a square hole, a round hole and the like, a worker can judge the direction of the cover 130 according to the blind hole 133, so that the cover 130 is matched with the shell 110 in direction, the direction is determined when the network transformer is welded on a circuit board, the direction is not easy to be mistaken, and time and labor are saved.

Lid 130 extends to the top of PIN needle 120 and PIN needle 120 exposes, and lid 130 can shelter from the top of PIN needle 120, prevents that winding end 121 from being destroyed to winding end 121 exposes, and the staff of can being convenient for observes the wire winding effect, selects the wastrel.

The production process of the network transformer provided by the embodiment of the utility model comprises the following steps:

placing the coil within the receiving cavity of the housing 110;

leading out the lead from the wire arranging groove and winding the lead at the wire winding end 121 of the PIN needle 120;

cutting off redundant leads;

injecting glue into the accommodating cavity, and fixing the coil;

covering the cover 130 above the housing 110, so that the cover 130 closes the opening of the accommodating cavity;

and placing the network transformer on the circuit board for welding.

The steps can be increased, decreased, modified, adjusted in sequence and the like according to needs.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prevent slow-witted shell, its characterized in that, includes casing and the lid that has the direction sign, be provided with many PIN needles on the lateral wall of casing, the lid is located on the casing, the both ends of casing are provided with two joint portions respectively, are located the casing both ends interval between the joint portion varies, one side of lid be provided with the joint tongue that joint portion matches.

2. The foolproof housing of claim 1, wherein said snap-in portion is inwardly recessed, a fixed step is provided at a bottom of said snap-in portion, and said snap-in tongue is hooked on said fixed step.

3. The foolproof housing of claim 2, wherein said latch tongue is resilient and has a guide surface on an inside of a bottom end thereof, said guide surface being inclined.

4. The foolproof housing of claim 1, wherein the top surface of the lid is provided at one end with a blind hole.

5. The foolproof housing of claim 1, wherein a predetermined notch is provided at a top of one end of said housing.

6. The foolproof housing of claim 1, wherein said cover extends over and exposes said PIN.

7. The foolproof housing of any one of claims 1-6, wherein the side wall of the housing is provided with a wire management island, the middle of the winding end of the PIN is provided with a winding recess, and the height of the wire management island is between the winding recess and the top end of the winding end.

8. The foolproof housing of claim 7, wherein the side walls of the housing are provided with guide ramps disposed on both sides of the wire management island, the guide ramps being inclined and extending from the bottom of the wire management island to the wire winding end.

9. The foolproof housing of any one of claims 1-6, wherein the PIN is mounted to a mounting wall of the housing, a bottom surface of the mounting wall and a bottom surface of a middle portion of the housing are stepped, a welding end of the PIN is bent outward and attached to the bottom surface of the mounting wall, and a winding end of each of two adjacent PIN is recessed.

10. A network transformer, characterized in that, the network transformer comprises a coil and the foolproof housing of any one of claims 1 to 9, the coil is disposed in the housing and a lead is wound around one end of the PIN.