CN217717888U

CN217717888U - Combined shunt with multiple alloy blocks combined in series and parallel

Info

Publication number: CN217717888U
Application number: CN202221698333.2U
Authority: CN
Inventors: 王海滨
Original assignee: Changzhou Sudu Technology Co ltd
Current assignee: Changzhou Sudu Technology Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-11-01
Anticipated expiration: 2032-07-01

Abstract

The utility model discloses a combined shunt with multiple alloy blocks combined in series and parallel, which comprises a shunt and a data processing unit, wherein the shunt is provided with a plurality of alloy blocks; a plurality of sampling points are arranged on a copper bar of the current divider and used for collecting the voltage or current of the alloy block; the data processing unit is connected with the sampling point in the shunt for data to the sampling point is gathered carry out and is converted by simulation to the digit, and carry out corresponding processing to the data of gathering and judge whether each alloy piece module can normally work, and come further to try to get the electric current through the shunt according to input/output end's pressure drop, the utility model discloses an interrelation between a plurality of voltages detects the operating condition of every alloy piece, not only avoids causing the condition of the unable normal work of shunt because of single alloy piece damages, has still greatly improved the reliability of shunt work.

Description

Combined shunt with multiple alloy blocks combined in series and parallel

Technical Field

The utility model relates to a combination shunt that many alloy pieces cluster and parallel combined belongs to shunt technical field.

Background

At present, the new energy automobile industry is continuously and rapidly developing, wherein the detection of a battery system is particularly important, and particularly, current data of an automobile in the driving process and the charging process needs to be monitored in real time. At present, a single alloy block shunt widely used in the industry is used as current measuring equipment, but once an alloy block in the single alloy block shunt is damaged or has large deviation in the working process, current measuring errors are caused, the function of the shunt cannot be realized, and certain reliability is lacked compared with that of a shunt combined by a plurality of alloy blocks in series and parallel. In order to avoid and reduce the risk of personal injury caused by the failure of the functions and hardware of the electronic system in the automobile product, the operational reliability of the hardware needs to be highly valued.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a combination shunt that many alloy piece cluster combined for solve the not enough of single alloy piece shunt reliability in the course of the work, and can carry out voltage data monitoring through the both sides to each alloy piece, under the condition that many alloy piece cluster combined shunt normal work, according to the comparison of sampling data, judge whether the alloy piece of shunt damages, thereby improved the reliability of shunt in the use.

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

the utility model provides a combination shunt that many alloy pieces cluster and combine, include: the device comprises a flow divider and a data processing unit, wherein a plurality of alloy blocks are arranged on the flow divider; a plurality of sampling points are arranged on a copper bar of the current divider and used for collecting the voltage or the current of the alloy block; the data processing unit is connected with the sampling points in the shunt and used for converting data collected by the sampling points from analog to digital, correspondingly processing the collected data to judge whether each alloy block module can normally work or not and further solving the current passing through the shunt according to the voltage drop of the input end and the output end.

Further, the plurality of alloy blocks on the shunt are connected in series with each other.

Further, the alloy blocks on the shunt are connected in parallel.

Furthermore, the alloy blocks on one part of the shunt are connected in parallel and then connected in series with the alloy blocks on the other part of the shunt.

Further, the resistance values of the alloy blocks are equal in value or equal in proportion.

Furthermore, a plurality of sampling points on the flow divider are uniformly distributed at the positions of two sides of the alloy block.

Compared with the prior art, the utility model discloses the beneficial effect who reaches:

the utility model provides a combination shunt that many alloy piece cluster and combination, through set up a plurality of contacts on the shunt, carry out voltage acquisition to every alloy piece both ends on the shunt, the operating condition who detects every alloy piece through the interrelation between a plurality of voltages detects out the alloy piece and whether takes place to damage or take place great deviation in the course of the work, under the prerequisite that further improves shunt operational reliability, can carry out certain feedback to the operating condition of shunt according to the data of sampling.

Drawings

FIG. 1 is a schematic diagram of a first configuration for carrying out the present invention.

Fig. 2 is a schematic diagram of a second configuration for carrying out the present invention.

FIG. 3 is a schematic diagram of a third embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. 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 or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, 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 by those of ordinary skill in the art through specific situations.

Example 1

This embodiment introduces a combined shunt of multi-alloy piece series-parallel combination, includes: the device comprises a current divider and a data processing unit, wherein a plurality of alloy blocks are arranged on the current divider, and the alloy blocks are connected in series or in parallel or in a series-parallel mixed manner; a plurality of sampling points are arranged on a copper bar of the current divider and used for collecting the voltage or current of the alloy block; the data processing unit is connected with the sampling points in the shunt and used for converting data collected by the sampling points from analog to digital, correspondingly processing the collected data to judge whether each alloy block module can normally work or not and further solving the current passing through the shunt according to the voltage drop of the input end and the output end.

In a first configuration, as shown in figure 1, two masses are connected in series, the resistance of the masses being equal or proportional. In FIG. 1, R is used_A＝R_B=25 μ Ω, three contacts are provided on the shunt, and the measured potentials are U₁、U₂And U₃. Current is introduced to the two ends of the shunt, and when two alloy blocks are produced at the two ends of the resistorResultant pressure drop U₁₂＝U₂₃And when the current divider works normally. Voltage drop U generated between two alloy block resistors₁₂≠U₂₃In this case, the alloy block a or B has a large deviation, and the shunt fails.

In a second configuration, as shown in fig. 2, two alloy blocks are connected in parallel, and the resistance values of the alloy blocks may be equal or proportional. In FIG. 2, R is used_A＝R_B=25 μ Ω, three contacts are provided on the shunt, the measured potentials of which are U respectively₁、U₂、U₃. Assuming that the same current is introduced into the two ends of the two alloy blocks, when the two alloy blocks generate voltage drop U₁₂＝U₂₃And when the current divider works normally. When the voltage drop U is generated between two alloy block resistors₁₂≠U₂₃In this case, the alloy block a or B has a large deviation, and the shunt fails.

In a third configuration, as shown in fig. 3, three alloy blocks are combined in series and parallel to form a shunt, and the resistance values of the alloy blocks can be equal or equal in proportion. In FIG. 3, R is used_A＝R_B＝R_C=25 μ Ω, four contacts are provided on the shunt, and the measured potentials are U₁、U₂、U₃、U₄. Assuming a current I₁Flows into the left side of alloy A and flows out of the right side of alloy C, and has current I₂Flows in from the left side of alloy B and flows out from the right side of alloy C, and assumes I₁＝I₂. When U is turned₁₄＝U₂₄And when the current divider works normally. When U is formed₁₄≠U₂₄And then the shunt fails. Similarly, when U is₁₃＝U₂₃And when the current divider works normally. When U is turned₁₃≠U₂₃And then the shunt fails.

A data processing unit: the data processing unit mainly converts the data collected by the sampling points from analog to digital, and correspondingly processes the collected data to judge whether each resistance module can normally work or not, and further obtains the current passing through the current divider according to the voltage drop of the input end and the output end.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The combined shunt is characterized by comprising a shunt and a data processing unit, wherein the shunt is provided with a plurality of alloy blocks; a plurality of sampling points are arranged on a copper bar of the current divider and used for collecting the voltage or current of the alloy block; the data processing unit is connected with the sampling points in the shunt and used for converting data collected by the sampling points from analog to digital, correspondingly processing the collected data to judge whether each alloy block module can normally work or not and further obtaining the current passing through the shunt according to the voltage drop of the input end and the output end.

2. The multi-alloy block series-parallel combined splitter of claim 1, wherein: the alloy blocks on the shunt are connected in series.

3. The multi-alloy block series-parallel combined splitter of claim 1, wherein: and the alloy blocks on the shunt are connected in parallel.

4. The multi-alloy-block series-parallel combined shunt of claim 1, wherein: and the alloy blocks on one part are connected in parallel and then connected in series with the alloy blocks on the other part.

5. The multi-alloy block series-parallel combined splitter of claim 1, wherein: the resistance values of the alloy blocks are equal in value or equal in proportion.

6. The multi-alloy block series-parallel combined splitter of claim 1, wherein: and a plurality of sampling points on the flow divider are uniformly distributed at the positions of two sides of the alloy block.