CN213071123U

CN213071123U - Rectifier bridge stack with protection mechanism

Info

Publication number: CN213071123U
Application number: CN202022133392.2U
Authority: CN
Inventors: 邓江
Original assignee: Dongguan Guanjing Electronics Co ltd
Current assignee: Dongguan Guanjing Electronics Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-04-27
Anticipated expiration: 2030-09-25

Abstract

The utility model belongs to the technical field of bridge rectifier manufacturing, concretely relates to rectifier bridge rectifier with protection machanism, include the shell and fix chip, fusing portion and holding portion in the shell, a plurality of wiring foot is installed to the bottom of shell, the top of wiring foot is passed the shell, and extend to inside the shell, the chip pass through the conducting strip respectively with the wiring foot is connected, fusing portion establishes ties the conducting strip with between the wiring foot, holding portion covers fusing portion, the both ends of holding portion respectively with the conducting strip with wiring foot fixed connection, be used for after fusing portion breaks off, keep the conducting strip with the relative position of wiring foot is fixed. The utility model discloses can cut off the connection of bridge rectifier and external circuit fast when the heavy current is through the bridge rectifier, can also prevent that bridge rectifier and external circuit from switching on once more, help prolonging the life of bridge rectifier.

Description

Rectifier bridge stack with protection mechanism

Technical Field

The utility model belongs to the technical field of bridge rectifier manufacturing, concretely relates to rectifier bridge rectifier with protection machanism.

Background

The bridge stack is an electronic component that is internally composed of a plurality of diodes. The main function is rectification and current direction adjustment. The bridge rectifier is better, firstly, the rectifier is very convenient, and four pipes in the rectifier are generally selected and matched, so the performance of the rectifier is closer, and when the rectifier is used for rectifying high power, the heat dissipation blocks can be arranged on the bridge rectifier, so that the performance is more stable during working, different bridge rectifiers need to be selected in different use occasions, and whether the voltage resistance is enough can not be seen, such as high-frequency characteristic and the like.

In the existing bridge pile structure, a protection mechanism is not arranged in the bridge pile, and the bridge pile is easy to burn out when large current passes through the bridge pile.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: to prior art's not enough, provide a rectifier bridge heap with protection machanism, can be when heavy current process bridge heap, the connection of bridge heap and external circuit is cut off fast, can also prevent that bridge heap and external circuit from switching on once more, helps prolonging the life of bridge heap.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a rectifier bridge stack with protection machanism, includes the shell and fixes chip, fusing portion and holding portion in the shell, a plurality of wiring foot is installed to the bottom of shell, the top of wiring foot is passed the shell, and extend to inside the shell, the chip pass through the conducting strip respectively with the wiring foot is connected, fusing portion establishes ties the conducting strip with between the wiring foot, holding portion covers fusing portion, the both ends of holding portion respectively with the conducting strip with wiring foot fixed connection is used for after fusing portion breaks, keep the conducting strip with the relative position of wiring foot is fixed.

As an improvement of the bridge rectifier with protection mechanism of the present invention, the retaining portion includes a first retaining portion and a second retaining portion, the two ends of the first retaining portion are provided with fixing holes, the second retaining portion is provided with fixing columns fitted with the fixing holes, and the fixing columns pass through the conducting strips or the wiring pins are installed in the fixing holes.

As an improvement to the rectifier bridge stack with the protection mechanism of the present invention, the area of the holding portion is larger than the area of the fusing portion.

As an improvement of a rectifier bridge stack with protection machanism, the wiring foot includes anodal wiring foot and negative pole wiring foot, anodal wiring foot install in one side of shell bottom, negative pole wiring foot install in the opposite side of shell bottom.

As an improvement of the rectifier bridge stack with the protection mechanism, the protection sleeve is installed in the center of the wiring pin.

As an improvement of the rectifier bridge stack with the protection mechanism, the number of the wiring pins is four.

As an improvement of a rectifier bridge stack with protection machanism, the cross-sectional area that overflows of fusing portion is less than the conducting strip with the cross-sectional area that overflows of wiring foot.

As an improvement of a rectifier bridge heap with protection machanism, the fusing portion is provided with the breach along width direction's both sides.

As an improvement of a rectifier bridge stack with a protection machanism, the shell intussuseption is filled with the buffering and glues.

The beneficial effects of the utility model reside in that, the utility model discloses a shell and fixing chip, fusing portion and holding portion in the shell, a plurality of wiring foot is installed to the bottom of shell, the top of wiring foot is passed the shell, and extend to inside the shell, the chip pass through the conducting strip respectively with the wiring foot is connected, fusing portion establishes ties the conducting strip with between the wiring foot, holding portion covers fusing portion, the both ends of holding portion respectively with the conducting strip with wiring foot fixed connection is used for after the disconnection of fusing portion, keep the conducting strip with the relative position of wiring foot is fixed. Because the bridge pile structure is not provided with a protection mechanism in the bridge pile, when a large current passes through the bridge pile, the bridge pile is easy to burn out, therefore, the fusing part is connected between the conducting plate and the wiring pin in series, when the wiring pin passes through the large current due to short circuit or abnormality, the fusing part can fuse in time and cut off the connection between the conducting plate and the wiring pin, thereby playing the role of protecting a chip, preventing the bridge pile from burning out and being beneficial to reducing the maintenance cost, meanwhile, the two ends of the retaining part are respectively fixedly connected with the conducting plate and the wiring pin, after the fusing part fuses, the retaining part can keep the relative positions of the conducting plate and the wiring pin fixed, preventing the conducting plate and the wiring pin from being lapped together when the conducting plate and the wiring pin are impacted outside, causing the condition that the bridge pile is conducted again, playing the role of safely protecting the bridge pile and prolonging the service life of the bridge pile, wherein, the retaining part covers, the contact area between the holding part and the fusing part is increased, the stability of the holding part and the fusing part is improved, and the holding part is prevented from falling off; the chip is IC chip GPP chip, and the bottom of shell is provided with and supplies the terminal pin male through-hole, and the one end and the chip electricity of terminal pin are connected, and the other end is connected with external circuit electricity, realizes the bridge heap to the effect of external circuit rectification, and the terminal pin can be buckled, satisfies the demand of different application scenes, helps improving the suitability of bridge heap. The utility model discloses can cut off the connection of bridge rectifier and external circuit fast when the heavy current is through the bridge rectifier, can also prevent that bridge rectifier and external circuit from switching on once more, help prolonging the life of bridge rectifier.

Drawings

Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of the external structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic structural view of the holding portion of the present invention.

Wherein the reference numerals are as follows:

1-a housing;

2-chip;

3-a fusing part; 31-a notch;

4-a holding section; 41-a first holding portion; 42-a second holding portion; 411-fixation holes; 412-fixed column;

5-a wiring pin; 51-positive terminal pin; 52-negative terminal pin;

6-a conductive sheet;

y-width direction.

Detailed Description

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to fig. 1 to 3, but the present invention is not limited thereto.

Implementation mode one

The utility model provides a rectifier bridge stack with protection machanism, include shell 1 and fix chip 2 in shell 1, fusing part 3 and holding portion 4, a plurality of wiring foot 5 is installed to the bottom of shell 1, shell 1 is passed on the top of wiring foot 5, and extend to inside the shell 1, chip 2 is connected with wiring foot 5 respectively through conducting strip 6, fusing part 3 establishes ties between conducting strip 6 and wiring foot 5, holding portion 4 covers fusing part 3, the both ends of holding portion 4 respectively with conducting strip 6 and wiring foot 5 fixed connection, be used for after fusing part 3 breaks off, the relative position who keeps conducting strip 6 and wiring foot 5 is fixed.

Because in the existing bridge pile structure, there is no protection mechanism in the bridge pile, when the large current passes through the bridge pile, the bridge pile is easy to burn out, therefore, as shown in fig. 1 and fig. 2, the fusing part 3 is connected in series between the conducting strip 6 and the wiring pin 5, when the short circuit or abnormity leads to the wiring pin 5 passing through the large current, the fusing part 3 can fuse in time and cut off the connection between the conducting strip 6 and the wiring pin 5, playing the role of protecting the chip 2, preventing the bridge pile from burning out, helping to reduce the maintenance cost, meanwhile, the two ends of the holding part 4 are respectively fixedly connected with the conducting strip 6 and the wiring pin 5, after the fusing part 3 is fused, the holding part 4 can keep the relative positions of the conducting strip 6 and the wiring pin 5 fixed, preventing the conducting strip 6 and the wiring pin 5 from being lapped together when the conducting strip 6 and the wiring pin 5 are impacted outside in the bridge pile, causing the condition that the bridge pile is switched on again, playing the role, the service life of the bridge pile is prolonged, the retaining part 4 covers the fusing part 3, the contact area of the retaining part 4 and the fusing part 3 is increased, the stability of the retaining part 4 and the fusing part 3 is improved, and the retaining part 4 is prevented from falling off; the chip is IC chip GPP chip, and the bottom of shell 1 is provided with and supplies 5 male through-holes of wiring foot, and the one end and the chip 2 electricity of wiring foot 5 are connected, and the other end is connected with external circuit electricity, realizes the bridge rectifier and to the effect of external circuit rectification, and wiring foot 5 can buckle, satisfies the demand of different application scenes, helps improving the suitability of bridge rectifier.

In the rectifier bridge stack with the protection mechanism according to the present invention, referring to fig. 3, the holding portion 4 includes a first holding portion 41 and a second holding portion 42 which are oppositely disposed, fixing holes 411 are provided at both ends of the first holding portion 41, a fixing column 412 which is engaged with the fixing holes 411 is provided at the second holding portion 42, and the fixing column 412 passes through the conductive sheet 6 or the wiring pin 5 and is mounted on the fixing holes 411. The fixing post 412 may be directly fixedly connected to the conductive sheet 6 or the terminal pin 52 by heat fusion, interference fit, riveting, adhesion, or the like, but is not limited to the above connection method, the shape of the fixing post 412 corresponds to the fixing hole 411, the number of the fixing holes 411 at each end of the first holding portion 41 is at least two, the first holding portion 41 and the conductive sheet 6 or the terminal pin 5 are prevented from rotating or shifting, the conductive sheet 6 and the terminal pin 5 are both provided with through holes engaged with the fixing post 412, so that the first holding portion 41 and the second holding portion 42 are combined into a stable structure, the conductive sheet 6 and the terminal pin 5 can be fixed at both ends of the holding portion 4, and the holding portion 4 plays a role of spacing the conductive sheet 6 and the terminal pin 5.

In the basis the utility model discloses an in the rectifier bridge heap with protection machanism, wiring foot 5 includes anodal wiring foot 51 and negative pole wiring foot 52, and anodal wiring foot 51 is installed in one side of shell 1 bottom, and negative pole wiring foot 52 is installed in the opposite side of shell 1 bottom, and anodal wiring foot 51 and negative pole wiring foot 52 separately set up, prevent that anodal wiring foot 51 and negative pole wiring foot 52 from taking place the short circuit, help improving the security of bridge heap.

In the rectifier bridge stack with the protection mechanism according to the utility model discloses an overflow sectional area that fusing portion 3 overflows is less than the overcurrent sectional area of conducting strip 6 and wiring foot 5. Therefore, when the connection pin 5 passes through a large current, the fusing part 3 can be fused rapidly, so that the electrical connection between the conducting strip 6 and the connection pin 5 is cut off rapidly, the chip 2 is prevented from being burnt out, and the maintenance cost is reduced.

In the rectifier bridge stack with the protection mechanism according to the present invention, the fusing portion 3 is provided with the notches 31 along the two sides of the width direction Y. Through breach 31 for the cross sectional area that overflows of fusing portion 3 further reduces, helps improving fusing portion 3's reaction rate, when wiring foot 5 is through relatively less heavy current promptly, fusing portion 3 also can fuse, realizes quick fusing, reaches the electric connection of cutting off conducting strip 6 and wiring foot 5 fast.

The utility model discloses a theory of operation is:

establish ties fusing portion 3 between conducting strip 6 and wiring foot 5, lead to wiring foot 5 when the heavy current is passed through in short circuit or unusual, fusing portion 3 can in time fuse and cut off the connection between conducting strip 6 and the wiring foot 5, play the effect of protection chip 2, prevent that the bridge pile from burning out, help reducing cost of maintenance, and simultaneously, the both ends of holding portion 4 respectively with conducting strip 6 and wiring foot 5 fixed connection, after fusing portion 3 melts, holding portion 4 can keep conducting strip 6 and wiring foot 5 fixed in relative position, prevent that conducting strip 6 and wiring foot 5 from receiving the external shock at the bridge pile, conducting strip 6 and wiring foot 5 are taken together, cause the condition that the bridge pile switches on once more, play the effect of safety protection bridge pile, the life of extension bridge pile.

Second embodiment

The difference from the first embodiment is that: the protective sheath is installed at the center of the connection pin 5 of this embodiment, and the number of the connection pins 5 is four. The protective sleeve is added, so that the external conductive part can be prevented from contacting the wiring pin 5, and the probability of short circuit of the bridge rectifier is reduced; the number of the terminal pins 5 is limited, and the excessive number of the terminal pins 5 is prevented from causing an increase in the cost of the bridge rectifier, which contributes to uniform production.

Other structures are the same as those of the first embodiment, and are not described herein again.

Third embodiment

The difference from the first embodiment is that: the area of holding portion 4 in this embodiment is larger than the area of fusing portion 3, and housing 1 is filled with a cushion rubber. The area of retaining part 4 is big than the area of fuse part 3, helps increasing the area of contact of retaining part 4 and fuse part 3, improves the steadiness of retaining part 4 and fuse part 3, avoids retaining part 4 to take place to drop, increases the cushion gum, helps improving the performance of the shock resistance of bridge rectifier, reduces the probability that the part in the shell 1 takes place to shift, helps prolonging the life of bridge rectifier.

Variations and modifications to the above-described embodiments may become apparent to those skilled in the art from the disclosure and teachings of the above description. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious modifications, replacements or variations made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The utility model provides a rectifier bridge piles with protection machanism which characterized in that: including shell (1) and fixing chip (2), fusing part (3) and holding part (4) in shell (1), a plurality of wiring foot (5) are installed to the bottom of shell (1), the top of wiring foot (5) is passed shell (1), and extend to inside shell (1), chip (2) through conducting strip (6) respectively with wiring foot (5) are connected, fusing part (3) are established ties conducting strip (6) with between wiring foot (5), holding part (4) cover fusing part (3), the both ends of holding part (4) respectively with conducting strip (6) with wiring foot (5) fixed connection, be used for after fusing part (3) break off, keep conducting strip (6) with the relative position of wiring foot (5) is fixed.

2. A rectifier bridge stack with a guard mechanism as claimed in claim 1, wherein: the holding portion (4) comprises a first holding portion (41) and a second holding portion (42) which are oppositely arranged, fixing holes (411) are formed in two ends of the first holding portion (41), fixing columns (412) matched with the fixing holes (411) are arranged on the second holding portion (42), and the fixing columns (412) penetrate through the conducting strips (6) or the wiring pins (5) to be mounted in the fixing holes (411).

3. A rectifier bridge stack with a guard mechanism as claimed in claim 1, wherein: the area of the holding portion (4) is larger than the area of the fusing portion (3).

4. A rectifier bridge stack with a guard mechanism as claimed in claim 1, wherein: the wiring pin (5) comprises a positive wiring pin (51) and a negative wiring pin (52), the positive wiring pin (51) is installed on one side of the bottom of the shell (1), and the negative wiring pin (52) is installed on the other side of the bottom of the shell (1).

5. A rectifier bridge stack with a guard mechanism as claimed in claim 1, wherein: and a protective sleeve is arranged in the center of the wiring pin (5).

6. A rectifier bridge stack with a guard mechanism as claimed in claim 1, wherein: the number of the wiring pins (5) is four.

7. A rectifier bridge stack with a guard mechanism as claimed in claim 1, wherein: the overcurrent sectional area of the fusing part (3) is smaller than the overcurrent sectional areas of the conducting strip (6) and the wiring pin (5).

8. A rectifier bridge stack with a guard mechanism as claimed in claim 1, wherein: notches (31) are arranged on two sides of the fusing part (3) along the width direction (Y).

9. A rectifier bridge stack with a guard mechanism as claimed in claim 1, wherein: and the shell (1) is filled with buffer glue.