CN215527709U

CN215527709U - Open junction type surface mount device TVS diode

Info

Publication number: CN215527709U
Application number: CN202120505324.6U
Authority: CN
Inventors: 周伟伟; 欧阳炜霞; 高良通; 周懿冉; 邓珂; 杨许亮; 陈赵泷
Original assignee: Shanghai Weipan Microelectronic Co ltd
Current assignee: Shanghai Weipan Microelectronic Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2022-01-14
Anticipated expiration: 2031-03-10

Abstract

The utility model discloses an open junction type surface mount TVS diode, which belongs to the technical field of diodes and comprises a diode body, wherein a conductor is inserted in the middle position of the side surface of the diode body, two sides of the conductor are fixedly connected with a patch block, one side of the patch block, which is far away from the conductor, is detachably connected with a sealing block, a long adhesive sheet is adhered in the middle position of two sides of the left side of the diode body, short adhesive sheets are adhered in the middle positions of the upper side and the lower side of the diode body, and a gasket is fixedly connected to the bottom of the conductor. According to the utility model, the long adhesive tape and the short adhesive tape are adhered to the periphery of the conductor, so that the conductor is conveniently insulated and protected, and then the adhesive tape blocks and the sealing blocks are arranged on the two sides of the conductor, so that the two sides of the conductor are conveniently protected, and the stable work of the diode is ensured.

Description

Open junction type surface mount device TVS diode

Technical Field

The utility model relates to the technical field of diodes, in particular to an open junction type surface mount TVS diode.

Background

The transient voltage suppression diode is also called a TVS diode, and is an electronic component for protection, which can protect electrical equipment from voltage spikes induced by a wire, and the TVS diode is connected in parallel with a circuit to be protected. When the voltage exceeds the breakdown level, the excessive current is directly shunted. The TVS diode is a clamp that suppresses excessive voltages that exceed its breakdown voltage. When the overvoltage disappears, the TVS diode automatically resets, and the absorbed energy of the TVS diode is much larger than that of a crowbar circuit with similar rating.

Patent No. CN210245510U discloses an open junction type TVS diode, which includes a plastic case, a copper pin, a bidirectional TVS chip, copper particles, white glue and a potting adhesive; the plastic shell is a cuboid, one side of the plastic shell is provided with an opening, and the opening extends inwards to form a cavity; one end of the copper pin is arranged on the bottom wall of the containing cavity of the plastic shell, and the other end of the copper pin extends out of the plastic shell and is used for being communicated with a circuit; a bidirectional TVS chip is welded between the two copper particles and is arranged in a cavity of the plastic shell, and one end, far away from the chip, of one copper particle is welded on the copper pin and is used for being communicated with a circuit; the pouring sealant encapsulates the bidirectional TVS chip, the copper particles and the copper pins in the plastic shell. The open junction type surface mount TVS diode adopts the low-cost open junction process and is combined with the low-cost glue pouring process, the main body structure is welded at one time, the assembly is simple, the main body structure is directly placed on the optimized open junction corrosion plate, the passivation corrosion of the open junction is realized, and the surface mount of the open junction is realized.

The TVS diode of the above patent has the following disadvantages: 1. the diode can not be stably fixed and pasted, and the working effect of the diode can not be ensured; 2. the two sides of the diode cannot be isolated and protected, and the connection between the diode and a circuit is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides an open junction type TVS diode, which is convenient for insulating and protecting a conductor by sticking long adhesive sheets and short adhesive sheets around the conductor, and then is convenient for protecting two sides of the conductor by mounting adhesive blocks and sealing blocks on the two sides of the conductor, thereby ensuring the stable work of the diode.

The specific technical scheme provided by the utility model is as follows:

the utility model provides an open junction type TVS diode which comprises a diode body, wherein a conductor is inserted in the middle of the side surface of the diode body, two sides of the conductor are fixedly connected with a patch block, one side of the patch block, far away from the conductor, is detachably connected with a sealing block, a long adhesive tape is adhered in the middle of two sides of the left side of the diode body, short adhesive tapes are adhered in the middle of the upper side and the lower side of the diode body, and a gasket is fixedly connected to the bottom of the conductor.

Optionally, the bottom of the conductor is in contact connection with an insulating sleeve, and one side, far away from the conductor, of the insulating sleeve is fixedly connected with a rubber block.

Optionally, one side of the rubber block, which is far away from the insulating sleeve, is fixedly connected with a bottom adhesive sheet.

Optionally, a groove is formed in the middle of the right side of the patch block in a lathed mode, and the groove is detachably connected with a sealing block.

Optionally, the length of the sealing block is smaller than the groove depth of the groove.

The utility model has the following beneficial effects:

the embodiment of the utility model provides an open junction type TVS diode which comprises the following components:

1. be fixed with the paster piece in the both sides of conductor, keep away from conductor one side and install sealed piece, be convenient for seal the paster piece and carry out sealed guard action to the both sides of conductor promptly, then carry out parallel connection with diode and circuit through the recess of paster piece, just can use the diode, owing to paste in the upper and lower both sides of diode body and have short paster to glue, be convenient for carry out fixed connection to the diode body through short paster is glued, again because it has long paster to paste in the left and right sides of diode body to glue, the effect firm is played in the fixing of diode body, guarantee that the diode is stable to carry out work and use.

2. The bottom position fixedly connected with insulating cover at the conductor to insulating cover bottom is fixed with the rubber block, then is fixed with end rubberizing piece in the rubber block bottom, not only plays the effect of keeping apart insulation protection to the bottom of conductor, and is convenient for paste the fixed action to the part of conductor, guarantees the stable fixed of diode, then just can use in parallelly connected the circuit with the diode, and is fixed effectual to the diode, and the work effect of diode is good.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced 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 based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of an overall structure of an open junction type TVS diode according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pad of an open junction type TVS diode according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a die pad of an open junction die TVS diode according to an embodiment of the present invention.

In the figure: 1. short-time adhesive film pasting; 2. a diode body; 3. long-time adhesive sheet sticking; 4. a gasket; 5. a conductor; 6. A patch block; 7. a sealing block; 8. an insulating sleeve; 9. a rubber block; 10. sticking a film on the bottom; 11. and (4) a groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. 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.

An open junction type chip TVS diode according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1 to 3, an open junction type TVS diode provided by an embodiment of the present invention includes a diode body 2, a conductor 5 is inserted in a middle position of a side surface of the diode body 2, two sides of the conductor 5 are fixedly connected with a patch block 6, one side of the patch block 6 away from the conductor 5 is detachably connected with a sealing block 7, a long adhesive sheet 3 is adhered in a middle position of two sides of a left side of the diode body 2, short adhesive sheets 1 are adhered in middle positions of upper and lower sides of the diode body 2, and a gasket 4 is fixedly connected to a bottom of the conductor 5.

By way of example, the long adhesive tape 3 and the short adhesive tape 1 are adhered to the periphery of the conductor 5, so that the conductor 5 is conveniently protected in an insulation mode, then the adhesive tape blocks 6 and the sealing blocks 7 are installed on the two sides of the conductor 5, so that the two sides of the conductor 5 are conveniently protected, and stable operation of a diode is guaranteed.

Referring to fig. 1 and 2, an insulating sleeve 8 is connected to the bottom of the conductor 5 in a contact manner, and a rubber block 9 is fixedly connected to one side of the insulating sleeve 8, which is far away from the conductor 5.

Illustratively, an insulating sleeve 8 is fixed at the bottom of the conductor 5 to ensure the insulating protection effect on the conductor 5.

Referring to fig. 1 and 2, a bottom adhesive sheet 10 is fixedly connected to a side of the rubber block 9 away from the insulating sleeve 8.

Illustratively, a bottom tape 10 is fixed to the bottom of the rubber block 9 to facilitate the fixing of the conductor 5.

Referring to fig. 1 and 3, a groove 11 is lathed in the middle position of the right side of the patch block 6, and the sealing block 7 is detachably connected to the groove 11.

By way of example, the protective action is ensured by the sealing block 7 on both sides of the conductor 5.

Referring to fig. 1 and 3, the length of the sealing block 7 is smaller than the groove depth of the groove 11.

By way of example, it is convenient to ensure the sealing effect of the groove 11 of the patch block 6 by means of the sealing block 7.

When in use, the sealing block 7 of the side of the patch block 6 far away from the conductor 5 is taken down firstly, then the diode and the circuit are connected in parallel through the groove 11 of the patch block 6, so that the diode can be used, because the short patch glue 1 is pasted on the upper side and the lower side of the diode body 2, the diode body 2 is convenient to be fixedly connected through the short patch glue 1, because the long patch glue 3 is pasted on the left side and the right side of the diode body 2, the fixation of the diode body 2 is stabilized, the stable work and use of the diode are ensured, because the bottom position of the conductor 5 is fixedly connected with the insulating sleeve 8, the bottom of the insulating sleeve 8 is fixed with the rubber block 9, and then the bottom patch piece 10 is fixed at the bottom of the rubber block 9, the bottom of the conductor 5 is not only isolated and insulated, but also the part of the conductor 5 is convenient to be pasted and fixed, the diode is guaranteed to be stably fixed, then the diode can be connected in parallel to a circuit for use, the fixing effect on the diode is good, and the working effect of the diode is good.

The utility model is an open junction type TVS diode, which includes 1, a short adhesive sheet; 2. a diode body; 3. long-time adhesive sheet sticking; 4. a gasket; 5. a conductor; 6. a patch block; 7. a sealing block; 8. an insulating sleeve; 9. a rubber block; 10. sticking a film on the bottom; 11. the grooves and the components are all standard parts or parts known to the person skilled in the art, the structure and the principle of which are known to the person skilled in the art by means of technical manuals or by means of routine experimentation.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the utility model. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. The utility model provides an open knot type paster TVS diode, includes diode body (2), its characterized in that, it has conductor (5) to peg graft diode body (2) side intermediate position, conductor (5) are used both sides fixedly connected with paster piece (6), paster piece (6) are kept away from conductor (5) one side and can be dismantled and be connected with sealed piece (7) diode body (2) left side both sides intermediate position and are pasted and have long adhesive film (3), both sides intermediate position is pasted and is had short adhesive film (1) about diode body (2), conductor (5) bottom fixedly connected with gasket (4).

2. The open junction type TVS diode as claimed in claim 1, wherein the bottom of the conductor (5) is contact connected with an insulating sleeve (8), and a rubber block (9) is fixedly connected to one side of the insulating sleeve (8) far away from the conductor (5).

3. The TVS diode of an open junction type as claimed in claim 2, wherein a bottom adhesive sheet (10) is fixedly attached to a side of said rubber block (9) away from said insulating sheath (8).

4. The TVS diode of an open junction type as claimed in claim 1, wherein a groove (11) is lathed in a middle position of a right side of said die block (6), and said groove (11) is detachably connected with said sealing block (7).

5. The open junction patch TVS diode of claim 1, wherein a length of said sealing block (7) is smaller than a groove depth of said groove (11).