CN209296199U - Weighing device with planar load cell - Google Patents
Weighing device with planar load cell Download PDFInfo
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- CN209296199U CN209296199U CN201920217337.6U CN201920217337U CN209296199U CN 209296199 U CN209296199 U CN 209296199U CN 201920217337 U CN201920217337 U CN 201920217337U CN 209296199 U CN209296199 U CN 209296199U
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- plummer
- load cell
- weighing device
- planar load
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Abstract
The utility model provides a kind of weighing device with planar load cell, the first plummer including rectangle, the second plummer for being set to the sensitive beam at first plummer both ends and connecting with the sensitive beam；First plummer, the sensitive beam and second plummer are structure as a whole；First plummer and second plummer part are arranged in a staggered manner to be set up in the sensitive beam between first plummer and second plummer；The upper surface of first plummer is provided with the first Blind locating holes, and second plummer offers the second positioning through hole；The two sides of each sensitive beam open up there are two face setting strain bore；The weighing device with planar load cell further comprises 4 foil gauges being attached in the strain bore, is set to temperature compensation unit, sensitivity compensation unit and the zero compensation unit in first plummer and being integrated on pcb board.
Description
Technical field
The utility model relates to a kind of weighing device with planar load cell.
Background technique
Load cell measures the size of power by the response of elastomer loading force.Resistance-strain type of dynamometer sensor,
It is then to pass through because loading force makes elastomer occur that resistance variations occur due to elastic deformation causes in sensor resistance strain gage deformation
The different resistance of its detection circuit (Wheatstone bridge) exports different electric signal parameters, thus detects the size of loading force.
There are many multiplicity for the type of sensor.Industry generally uses socket cap weighing sensor to add fixture test circulating battery test at present
In expansive force.The disadvantage is that socket cap single-point acts on plate jig, initial parallel degree is difficult to control, while in cyclic process
Middle single-point stress causes plate jig to deform, to cause inside battery unbalance stress, electrolyte infiltration is uneven, causes to analyse
Lithium.
Utility model content
The utility model provides a kind of weighing device with planar load cell, can effectively solve the above problems.
The utility model is realized in this way:
A kind of weighing device with planar load cell, the first plummer including rectangle are set to the quick of first plummer both ends
Sense beam and the second plummer being connect with the sensitive beam；First plummer, the sensitive beam and described second are held
Microscope carrier is structure as a whole；First plummer and second plummer part are arranged in a staggered manner to make the sensitive erection
Between first plummer and second plummer；The upper surface of first plummer is provided with the first positioning blind
Hole, and second plummer offers the second positioning through hole；The two sides of each sensitive beam open up there are two face setting
Strain bore；The weighing device with planar load cell further comprises 4 foil gauges being attached in the strain bore, is set to described
In one plummer and it is integrated in the temperature compensation unit on pcb board, sensitivity compensation unit and zero compensation unit, it is described to answer
Become piece to be electrically connected with the pcb board by signal wire respectively, excitation power supply and the signal output of the pcb board pass through pcb terminal
It is connect with external cable.
The beneficial effects of the utility model are: can effectively solve using the flat weighing device with planar load cell of special designing
Initial parallel degree problem before testing, while cell plane uniform force in test process can also be effectively ensured, to effectively assess
Battery true lifetime.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the structural schematic diagram of cell expansion force checking device provided by the embodiment of the utility model.
Fig. 2 is the explosive view of cell expansion force checking device provided by the embodiment of the utility model.
Fig. 3 is that the structure of weighing device with planar load cell in cell expansion force checking device provided by the embodiment of the utility model is shown
It is intended to.
Fig. 4 is the knot of weighing device with planar load cell in the cell expansion force checking device of another embodiment offer of the utility model
Structure schematic diagram.
Specific embodiment
It is practical below in conjunction with this to keep the purposes, technical schemes and advantages of the utility model embodiment clearer
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.It is practical based on this
Embodiment in novel, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment is fallen within the protection scope of the utility model.Therefore, the implementation to the utility model provided in the accompanying drawings below
The detailed description of mode is not intended to limit the range of claimed invention, but is merely representative of the utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, fall within the protection scope of the utility model.
Term " first ", " second " are used for description purposes only in the description of the present invention, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the present invention, " multiple "
It is meant that two or more, unless otherwise specifically defined.
Referring to Fig.1 shown in -3, the utility model embodiment provides a kind of cell expansion force checking device, including is stacked
The first test board 10, the second test board 11, third test board 12, clamping be set to first test board 10 and described second
Weighing device with planar load cell 20 between test board 11 and by first test board 10, second test board 11 and described
The fixed fixed cell 13 of third test board 12, the clamping of battery 40 are set to second test board 11 and the third
Between test board 12.
The weighing device with planar load cell 20 includes the first plummer 21 of rectangle, is set to 21 both ends of the first plummer
Sensitive beam 22 and the second plummer 23 for being connect with the sensitive beam 22；First plummer 21, the sensitive beam 22
And second plummer 23 is structure as a whole；First plummer 21 is arranged in a staggered manner with 23 part of the second plummer
To make the sensitive beam 22 be set up between first plummer 21 and second plummer 23；First plummer
21 upper surface is provided with the first Blind locating holes 24, and second plummer 23 offers the second positioning through hole 25；It is each quick
Sense beam 22 two sides open up there are two face setting strain bore 26；The weighing device with planar load cell further comprises being attached at
4 foil gauges in the strain bore 26 are set to the temperature-compensating list in first plummer 21 and being integrated on pcb board
Member, sensitivity compensation unit and zero compensation unit, the foil gauge are electrically connected with the pcb board by signal wire respectively,
The excitation power supply of the PCB plate is connect by pcb terminal with external cable 27 with signal output.
When the utility model is used, by carrying out loop test to the battery 40.At this point, the plane force-measuring sensing
Device 20 can detecte the expansive force in circulating battery test.The flat weighing device with planar load cell 20 plus plate jig, can be effective
It solves the problems, such as initial parallel degree before testing, while cell plane uniform force in test process can also be effectively ensured, thus effectively
Assess battery true lifetime.
As further improved, the length L of first plummer 21 is 80mm；The height of the weighing device with planar load cell
Degree H is 28mm, and the overall length of the weighing device with planar load cell is 200mm.
As further improved, the middle part of first plummer 21 offers the accommodating cavity 30 for accommodating the pcb board,
The external cable 27 is stretched out from the accommodating cavity 30.
As further improved, the side wall of first plummer 21 offers crossed beam trunking 31；The crossed beam trunking 31 connects
It is connected between the accommodating cavity 30 and the strain bore 26, is connected between the foil gauge and the pcb board for accommodating
Signal wire
Referring to shown in Fig. 4, in another embodiment, it is linked with the first cable-through hole 28 between the strain bore 26 of face setting,
And the second cable-through hole 29 is linked between the strain bore 26 and the accommodating cavity 30, first cable-through hole 28 and described
Two cable-through holes 29 are used to accommodate the signal wire connected between the foil gauge and the pcb board.As further improved, institute
It states the second cable-through hole 29 to be obliquely installed, to be arranged in a staggered manner with first Blind locating holes 24.
As further improved, the foil gauge is sticked in the strain bore 26 by glue.
As further improved, the fixed cell 13 includes being fed through first test board 10, described the respectively
First bolt 131 of two test boards 11 and the third test board 12, stud 132 and the second bolt 133；Described first
Bolt 131 is threadedly coupled after passing through first test board 10 with the stud 132, and second bolt 133 is across described the
It is threadedly coupled after three test boards 12 with the stud 132.In the present embodiment, including four group of first bolt 131, stud 132 and
Second bolt 133, is separately positioned on quadrangle.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of weighing device with planar load cell, which is characterized in that the first plummer (21) including rectangle is set to described first and holds
The sensitive beam (22) at microscope carrier (21) both ends and the second plummer (23) being connect with the sensitive beam (22)；First carrying
Platform (21), the sensitive beam (22) and second plummer (23) are structure as a whole；First plummer (21) and institute
The second plummer (23) is stated partially to be arranged in a staggered manner that the sensitive beam (22) is made to be set up in first plummer (21) and institute
It states between the second plummer (23)；The upper surface of first plummer (21) is provided with the first Blind locating holes (24), and described
Second plummer (23) offers the second positioning through hole (25)；The two sides of each sensitive beam (22) open up there are two face be arranged
Strain bore (26)；The weighing device with planar load cell further comprises 4 foil gauges being attached in the strain bore (26), sets
It is placed in first plummer (21) and is integrated in the temperature compensation unit on pcb board, sensitivity compensation unit and zero point
Compensating unit, the foil gauge are electrically connected with the pcb board by signal wire respectively, the excitation power supply and signal of the pcb board
Output is connect by pcb terminal with external cable (27).
2. weighing device with planar load cell according to claim 1, which is characterized in that the length L of first plummer (21)
For 80mm；The height H of the weighing device with planar load cell is 28mm, and the overall length of the weighing device with planar load cell is 200mm.
3. weighing device with planar load cell according to claim 1, which is characterized in that opened in the middle part of first plummer (21)
Equipped with the accommodating cavity (30) for accommodating the pcb board, the external cable (27) is stretched out from the accommodating cavity (30).
4. weighing device with planar load cell according to claim 3, which is characterized in that the side wall of first plummer (21) is opened
Equipped with crossed beam trunking (31)；The crossed beam trunking (31) is connected between the accommodating cavity (30) and the strain bore (26), is used for
Accommodating connects the signal wire between the foil gauge and the pcb board.
5. weighing device with planar load cell according to claim 3, which is characterized in that join between the strain bore (26) of face setting
It is connected with the first cable-through hole (28), and is linked with the second cable-through hole (29) between the strain bore (26) and the accommodating cavity (30),
First cable-through hole (28) and second cable-through hole (29) for accommodate connect the foil gauge and the pcb board it
Between signal wire.
6. weighing device with planar load cell according to claim 5, which is characterized in that the second cable-through hole (29) inclination is set
It sets, to be arranged in a staggered manner with first Blind locating holes (24).
7. weighing device with planar load cell according to claim 1, which is characterized in that the foil gauge sticks in institute by glue
It states in strain bore (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920217337.6U CN209296199U (en) | 2019-02-20 | 2019-02-20 | Weighing device with planar load cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920217337.6U CN209296199U (en) | 2019-02-20 | 2019-02-20 | Weighing device with planar load cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209296199U true CN209296199U (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920217337.6U Active CN209296199U (en) | 2019-02-20 | 2019-02-20 | Weighing device with planar load cell |
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| CN (1) | CN209296199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086549A (en) * | 2023-03-23 | 2023-05-09 | 常州爱塞尔科技有限公司 | New energy automobile press-fit equipment testing arrangement |
-
2019
- 2019-02-20 CN CN201920217337.6U patent/CN209296199U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086549A (en) * | 2023-03-23 | 2023-05-09 | 常州爱塞尔科技有限公司 | New energy automobile press-fit equipment testing arrangement |
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