CN216647965U

CN216647965U - Electromagnetic system and coil framework

Info

Publication number: CN216647965U
Application number: CN202122764148.0U
Authority: CN
Inventors: 史亚闻
Original assignee: Delixi Electric Co Ltd
Current assignee: Delixi Electric Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-05-31
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses an electromagnetic system which comprises a coil framework and a TVS diode, wherein the side wall of the coil framework is provided with at least one group of fixed blocks which are oppositely arranged, a clamping area is formed between the fixed blocks, and the TVS diode is clamped in the clamping area. The utility model also provides a coil framework. The fixing block is additionally arranged on the coil framework to fix the TVS diode, so that the TVS diode fixing structure is simple in structure, low in cost and capable of reducing the whole volume of a product.

Description

Electromagnetic system and coil skeleton

Technical Field

The utility model relates to the technical field of electromagnetic structures, in particular to an electromagnetic system and a coil framework.

Background

In dc-operated electromagnetic systems, tvs (transient Voltage suppressor) diodes, also called transient suppressor diodes, are often provided for surge suppression. In the prior art, two methods are generally adopted for configuring the TVS diode, one method is to fix the TVS diode and the coil framework in a glue pouring manner inside a product; the TVS diode is arranged on the outer side of the electromagnetic system shell in an external attachment mode.

However, both of the two configuration modes have considerable disadvantages, for example, the glue filling mode not only needs to add the fixed silica gel glue, but also needs to be equipped with special glue filling equipment, and consumes materials, time and labor; the manner of externally attaching the accessories tends to increase the volume and cost of the product.

Therefore, how to provide an electromagnetic system, can enough realize the fixed to TVS diode, and simple structure, low cost reduces the whole volume of product.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electromagnetic system which realizes the fixation of a TVS diode, has simple structure and low cost and reduces the whole volume of a product.

In order to solve the technical problem, the utility model provides an electromagnetic system which comprises a coil framework and a TVS diode, wherein the side wall of the coil framework is provided with at least one group of fixing blocks which are oppositely arranged, a clamping area is formed between the fixing blocks, and the TVS diode is clamped in the clamping area.

The fixing block is additionally arranged on the coil framework to fix the TVS diode, so that the TVS diode fixing structure is simple in structure, low in cost and capable of reducing the whole volume of a product.

Optionally, the fixed block clamps both radial sides of the TVS diode.

Optionally, the length of the contact portion between the fixed block and the TVS diode is substantially equal to the length of the TVS diode.

Optionally, the fixing block is correspondingly provided with a notch extending along the axial direction, and the notch is used for a pin to pass through.

Optionally, the fixing block clamps both axial ends of the TVS diode.

Optionally, each of the fixing blocks includes two single blocks, and a predetermined distance is provided between the two single blocks in the radial direction to form the gap.

Optionally, the number of the fixing blocks is two, and the fixing blocks are used for clamping two axial ends and two radial sides of the TVS diode.

Optionally, the fixing blocks for clamping the two axial ends of the TVS diode each include two single blocks, and a predetermined distance is provided between the two single blocks in a radial direction.

Optionally, the fixing block and the coil framework are integrally formed;

or the fixed block is made of nylon plastics.

The utility model also provides a coil framework, the side wall of the coil framework is provided with at least one group of fixing blocks which are oppositely arranged, a clamping area is formed between the fixing blocks and used for clamping the two axial ends and/or the two radial sides of the TVS diode, and the fixing blocks and the coil framework are integrally formed.

The structure of the coil framework added with the fixed block realizes the fixation of the TVS diode, has simple structure and low cost, and reduces the whole volume of the product.

Drawings

FIG. 1 is a schematic diagram of an embodiment of an electromagnetic system in accordance with the present invention;

FIG. 2 is an enlarged view of a portion of the bobbin in the electromagnetic system of FIG. 1 at a fixed block;

FIG. 3 is a schematic structural view of radial two sides of a TVS diode clamped by a fixing block;

FIG. 4 is a schematic structural view of axial two ends of a TVS diode clamped by a fixing block;

wherein the reference numerals of fig. 1-4 are explained as follows:

1-a coil skeleton; a 2-TVS diode; 3, fixing blocks; 31-blocks of monomers; 4-metal pins; 5-conducting strip.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Here, the axial direction is the longitudinal direction of the TVS diode 2, and the radial direction is the vertical direction.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an electromagnetic system according to the present invention.

The utility model provides an electromagnetic system which comprises a coil framework 1 and a TVS diode 2, wherein the side wall of the coil framework 1 is provided with two groups of fixing blocks 3 which are oppositely arranged, one group of fixing blocks 3 is used for clamping the radial two sides of the TVS diode 2, the other group of fixing blocks 3 is used for clamping the axial two ends of the TVS diode 2, a clamping area matched with the TVS diode 2 is formed between the two groups of fixing blocks 3, and the TVS diode 2 is clamped in the clamping area.

According to the utility model, the structure of the fixing block 3 is added on the coil framework 1, so that an operator can fix the TVS diode 2 only by clamping the TVS diode 2 in the clamping area formed by the fixing block 3, the structure is simple, the installation is convenient, glue pouring equipment required by a glue pouring fixing mode in the prior art is omitted, and the processing cost is reduced; meanwhile, an external accessory is omitted, the overall volume of the product is reduced, and the practicability is higher; in addition, the two adopt detachable fixed mode, when the TVS diode 2 that needs to be renewed, be convenient for detach TVS diode 2.

It can be understood that only one set of fixing blocks 3 is provided for clamping the radial two sides of the TVS diode 2, or only one set of fixing blocks 3 is provided for clamping the axial two ends of the TVS diode 2, and the two schemes can realize the fixing of the TVS diode 2. Certainly, in this embodiment, two sets of fixing blocks 3 are arranged, and the radial two sides and the axial two ends of the TVS diode 2 are clamped simultaneously, so that the stability and reliability of clamping the TVS diode 2 can be improved, and the scheme is more preferable.

Referring to fig. 2 and fig. 3, fig. 2 is a partially enlarged view of a bobbin in the electromagnetic system of fig. 1 at a fixed block; fig. 3 is a schematic structural view of radial two sides of a TVS diode clamped by a fixing block.

In this embodiment, the fixing blocks 3 for clamping the two radial sides of the TVS diode 2 have a length substantially equal to the length of the TVS diode 2 at the contact portion with the TVS diode 2. The term "substantially equal" as used herein means that the difference in length between the two is within a certain range, and the range is much smaller than the length of the two, and the two can be regarded as being equal in length.

This setting can effectively enlarge fixed block 3 and TVS diode 2's area of contact, and then improves TVS diode 2's the stability of clamping.

Certainly, in practical application, if two groups of fixing blocks 3 are arranged at the same time, the radial two sides and the axial two ends of the TVS diode 2 are clamped, and the lengths of the fixing blocks 3 at the radial two sides can also be reduced properly, such as the middle part of the TVS diode 2 is clamped.

Please refer to fig. 1 and fig. 4, in which fig. 4 is a schematic structural diagram of two axial ends of a TVS diode clamped in a fixed block.

As shown in fig. 1, after the TVS diode 2 is clamped and fixed to the bobbin 1, the two longitudinal ends of the TVS diode are fixedly connected to the conductive plate 5 through the metal pins 4, specifically, the metal pins 4 are L-shaped, one end of the short side of each of the metal pins is fixedly connected to the TVS diode 2, and the long side of each of the metal pins extends vertically upward and is fixedly connected to the conductive plate 5. Therefore, in order to provide a mounting space for the metal pin 4 so that the metal pin 4 can be directly and fixedly connected with the longitudinal end portion of the TVS diode 2, as shown in fig. 4, the fixing blocks 3 for clamping the two axial ends of the TVS diode 2 each include two single blocks 31, and the two single blocks 31 have a predetermined distance in the radial direction and form a gap for the pin 4 to pass through.

The "predetermined distance" is not less than the radial width of the metal pin 4, and if the metal pin 4 is a columnar structure, it is not less than the diameter of the metal pin 4. Of course, in practical applications, the distance between the two single blocks 31 in the radial direction may be slightly larger than the radial width or diameter of the metal pin 4, so as to facilitate installation.

In this embodiment, the fixing blocks 3 for clamping the two axial ends of the TVS diode 2 include two single blocks 31, and in practical application, the fixing blocks 3 may also be of an integral structure and provided with mounting holes extending in the axial direction, so that the metal pins 4 can pass through the fixing blocks conveniently.

Of course, the fixed block 3 may have an L-shaped structure, two or four fixed blocks, and the two or four fixed blocks are respectively located at two or four corners of the diagonal line of the TVS diode 2, in addition to the two axial ends or two radial sides of the TVS diode 2 clamped as shown in fig. 3 and 4.

In this embodiment, the bobbin 1 and the fixing block 3 are integrally formed. Of course, in practical application, the two may be of a separate structure and may be fixed integrally.

In addition, the coil frame 1 and the fixing block 3 are made of nylon engineering plastics, and the materials have good mechanical property and wear resistance and meet the requirement of light weight.

Of course, the fixing block 3 and the bobbin 1 are not limited to the above materials. In addition, when the fixing block 3 and the coil bobbin 1 are of a split structure, the materials of the fixing block and the coil bobbin may not be different.

The utility model also provides a coil framework, the side wall of the coil framework 1 is provided with at least one group of fixing blocks 3 which are oppositely arranged, a clamping area is formed between the fixing blocks 3 and is used for clamping the two axial ends and/or the two radial sides of the TVS diode 2, and the fixing blocks 3 and the coil framework 1 are integrally formed.

According to the coil framework 1, the structure of the fixing block 3 is added, an operator only needs to clamp the TVS diode 2 in the clamping area formed by the fixing block 3, the TVS diode 2 can be fixed, the structure is simple, the installation is convenient, glue pouring equipment required by a glue pouring fixing mode in the prior art is omitted, and the processing cost is reduced; meanwhile, an external accessory is omitted, the overall volume of the product is reduced, and the practicability is higher; in addition, the two adopt detachable fixed mode, when the TVS diode 2 that needs to be renewed, be convenient for detach TVS diode 2.

The electromagnetic system and the bobbin provided by the present invention are described in detail above, and the principle and the embodiment of the present invention are explained in detail herein by using specific examples, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides an electromagnetic system, includes coil skeleton (1) and TVS diode (2), its characterized in that, the lateral wall of coil skeleton (1) has at least a set of fixed block (3) of relative setting, form the clamping district between fixed block (3), TVS diode (2) clamp in inside the clamping district.

2. The electromagnetic system according to claim 1, characterized in that the fixing block (3) clamps the radial sides of the TVS diode (2).

3. The electromagnetic system according to claim 2, characterized in that the length of the contact portion between the fixed block (3) and the TVS diode (2) is substantially equal to the length of the TVS diode (2).

4. The electromagnetic system according to claim 1, characterized in that the fixing block (3) clamps the axial ends of the TVS diode (2).

5. The electromagnetic system according to claim 2, characterized in that the fixed block (3) is correspondingly provided with axially extending notches for the metal pins (4) to pass through.

6. The electromagnetic system according to claim 5, characterized in that said fixed blocks (3) each comprise two single blocks (31), said single blocks (31) having a predetermined distance in the radial direction to form said gap.

7. The electromagnetic system according to claim 1, characterized in that the number of the fixed blocks (3) is two groups for clamping both axial ends and radial sides of the TVS diode (2).

8. The electromagnetic system according to claim 7, characterized in that the fixing blocks (3) clamping both axial ends of the TVS diode (2) each comprise two single blocks (31), and the two single blocks (31) have a predetermined distance therebetween in a radial direction.

9. The electromagnetic system according to any of the claims 1 to 8, characterized in that the fixed block (3) is integrally formed with the bobbin (1);

or the fixed block (3) is made of nylon engineering plastics.

10. The utility model provides a coil skeleton, its characterized in that, the lateral wall of coil skeleton (1) has at least a set of fixed block (3) of relative setting, form the clamping district between fixed block (3) for clamp the axial both ends and/or radial both sides of TVS diode (2), fixed block (3) with coil skeleton (1) integrated into one piece.