CN103557923B - Fixing frame structure for mounting weighing sensor - Google Patents

Fixing frame structure for mounting weighing sensor Download PDF

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Publication number
CN103557923B
CN103557923B CN201310520692.8A CN201310520692A CN103557923B CN 103557923 B CN103557923 B CN 103557923B CN 201310520692 A CN201310520692 A CN 201310520692A CN 103557923 B CN103557923 B CN 103557923B
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China
Prior art keywords
cavity
printed board
circuit printed
wallboard
load cells
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CN201310520692.8A
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CN103557923A (en
Inventor
郑文生
吴克明
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Mettler Toledo Changzhou Measurement Technology Ltd
Mettler Toledo Changzhou Precision Instruments Ltd
Mettler Toledo Changzhou Weighing Equipment Co Ltd
Original Assignee
Mettler Toledo Changzhou Measurement Technology Ltd
Mettler Toledo Changzhou Precision Instruments Ltd
Mettler Toledo Changzhou Weighing Equipment Co Ltd
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Application filed by Mettler Toledo Changzhou Measurement Technology Ltd, Mettler Toledo Changzhou Precision Instruments Ltd, Mettler Toledo Changzhou Weighing Equipment Co Ltd filed Critical Mettler Toledo Changzhou Measurement Technology Ltd
Priority to CN201310520692.8A priority Critical patent/CN103557923B/en
Publication of CN103557923A publication Critical patent/CN103557923A/en
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Publication of CN103557923B publication Critical patent/CN103557923B/en
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Abstract

The invention relates to a fixing frame structure for mounting a weighing sensor. A battery compartment base is arranged outside a wall plate of one side of a fixing frame, and a limiting notch is formed in the outer wall of the battery compartment base. A top plate is provided with a mounting face and a limiting seat, an inner baffle connected with the top plate is arranged on one corner of the wall plate, and the inner baffle, the top plate and the wall plate form an independent demarcating mounting cavity. A processing circuit printed board with a demarcating switch is mounted in the mounting cavity, and a lead sealing cover plate is mounted on the opening of the demarcating mounting cavity through fasteners. An inner separating plate connected to the top plate and the wall plate divides the cavity into an independent mainboard mounting cavity and an independent power board mounting cavity, a control circuit printed board is mounted in the mainboard mounting cavity, an annular table face is arranged in the power board mounting cavity, and a power source circuit printed board is mounted on the annular table face. A bottom cover plate is mounted in the mounting hole of the wall plate through fasteners. The fixing frame structure for mounting the weighing sensor is reasonable in structure, overhaul can be carried out on a scale body and other parts without opening lead sealing, and the effect of insect prevention of the power source can be achieved.

Description

The fixed rack structure of LOAD CELLS is installed
Technical field
The present invention relates to a kind of fixed rack structure installing LOAD CELLS, belong to electronic scale technical field.
Background technology
The weighing of electronic scales receives load by LOAD CELLS, by elastic body stress deformation, the resistance strain gage be pasted onto on elastic body is also out of shape simultaneously, cause the change of resistance strain gage resistance, by metering circuit, weight signal is transformed into corresponding analog electrical signal and exports to signal processing apparatus, signal processing circuit Received signal strength also carries out analog to digital conversion, then provide control circuit and storage circuit by cable, realizes transmission and the display of data.On the treatment circuit changing into the A/D conversion of digital signal at analog electrical signal, the change of component parameter can cause the change of weighing results, is also provided with a calibration switch on the printed circuit board for the treatment of circuit for this reason.But current electronic scales treatment circuit and main control circuit is arranged on one piece of circuit printing plate, for avoiding user, the components and parts on treatment circuit are modified, cover cover plate is on circuit boards passed through lead sealing means, forbid the cover plate on user's unlocking electronic scale, on lid, only leave the demarcation hole that calibration switch is operated, at the electronic scales of being forbidden for metering, by removing lead sealing, passing the demarcation hole on cover plate with instrument and pressing calibration switch and again demarcating object to reach.But in order to ensure the seriousness of measuring, this calibration process needs to carry out in metrological service.Current lead sealing carries out lead sealing for upper and lower cover cap mostly, but this lead seal structure also brings a problem simultaneously, when needs open upper and lower cover cap scale body inside is keeped in repair time, just must open lead sealing, must carry out confirming again lead sealing again through metrological service after maintenance.But the maintenance of electronic scales is many is not maintenance for treatment circuit and LOAD CELLS, unnecessary work therefore can be caused to increase, again meterage with and waste of time.
The control circuit printed board of the inside of current electronic scales, power circuit printed board and treatment circuit printed board installation site are undesirable, cause internal wiring cabling relatively in disorder, be unfavorable for the detection of circuit EMC and the control of electric cost, especially in power circuit printed board, each device is arranged upward, and preference temperature during power work, can be produced, the small worms such as cockroach are made more to like surviving in scale, usually because insect or its excreta touch the high-pressure section of power source internal, cause the damages such as Switching Power Supply partial short-circuit.Although some power supply insect protected mechanisms at present, mostly by increasing sealing mechanism, power supply itself is sealed, to reach vermins-proof effect, this insect preventing structure relative complex, is also unfavorable for power supply heat sinking, so add making and maintenance cost, also reduce the serviceable life of power supply simultaneously.
Summary of the invention
The object of this invention is to provide a kind of rational in infrastructure, under not opening lead sealing prerequisite, can overhaul scale body other parts, and the fixed rack structure of the installation LOAD CELLS of power supply vermins-proof effect can be realized.
The present invention is the technical scheme achieved the above object: a kind of fixed rack structure installing LOAD CELLS, it is characterized in that: described fixed mount comprises top board, is connected to the wallboard of roof perimeter and base plate, be provided with the battery compartment seat be connected with base plate outside the wallboard of wherein side, the outer wall of battery compartment seat is provided with spacing edge-cut, described top board is provided with the installed surface and at least three limit bases of installing LOAD CELLS, described top board and wallboard form the box structure of bottom opening, the Yi Jiaochu of wallboard is provided with the Internal baffle connected with top board, Internal baffle and top board and wallboard are formed independently to demarcate installs cavity, the treatment circuit printed board with calibration switch is arranged on to demarcate installs in cavity, lead sealing cover plate is arranged on the opening part demarcated and install cavity by securing member, lead sealing cover plate is provided with the demarcation hole corresponding with calibration switch, and lead sealing paper or lead sealing screw are arranged on to demarcate on cover plate and get lodged in and demarcate hole, cavity is divided into independently mainboard installation cavity and power panel installation cavity by the internal partition be connected on top board and wallboard, and demarcate and cavity and mainboard are installed to install cavity adjacent, control circuit printed board is arranged in mainboard installation cavity, circular table is provided with in described power supply installation cavity, power circuit printed board is arranged on circular table by securing member, in power circuit printed board, surrounding and circular table are fitted, device in power circuit printed board is arranged downwards, bottom plate is arranged in the mounting hole of wallboard by securing member, bottom plate blocks power circuit printed board and control circuit printed board.
The present invention will be provided with battery compartment seat in fixed mount front, and top board is provided with the installed surface of LOAD CELLS and the limit base of more than three, conveniently be arranged on fixed mount by LOAD CELLS, also realize the protection to LOAD CELLS by limit base.The top board of fixed mount of the present invention and wallboard form the box structure of bottom opening, fixed mount is made to have good physical strength, fixed mount is respectively equipped with independently to demarcate installs cavity, mainboard installation cavity and power supply installation cavity, by treatment circuit printed board, control circuit printed board and power circuit printed board are arranged in respective installation cavity respectively, lead sealing cover plate is arranged on to demarcate and installs cavity top and block treatment circuit printed board, bottom plate is arranged on wallboard and shelters from treatment circuit printed board, therefore be separated to the treatment circuit of LOAD CELLS signal transacting with control circuit, because the treatment circuit printed board being provided with calibration switch is arranged separately, and lead sealing cover plate is provided with demarcation hole, can not open under lead sealing prerequisite, open bottom plate and upper cover can detect the parts in electronic scales, maintenance or replacing, and treatment circuit and LOAD CELLS can not be affected, bring conveniently to the maintenance of electronic scales, decrease unnecessary work to increase and meterage is used again.When power circuit printed board of the present invention is arranged on circular table by securing member, power circuit printed board surrounding can be fitted with installation cavity inner wall, make to form a gapless cavity between the power circuit printed board back side containing solder joint and pedestal, the foreign matters such as small worm are stoped to enter, thus reach insect protected object, and the device in power circuit printed board is arranged downwards, by the pad portion of easy short circuit upward, small worm is not easily creeped, therefore effectively reduces the problem that Switching Power Supply partial short-circuit etc. is damaged.The present invention is simple and reasonable for structure, just can reach insect protected without the need to increase making and maintenance cost.The present invention is by treatment circuit printed board, control circuit printed board and the power circuit printed board respectively of each independently installation cavity, and each printed board internal wiring cabling is clear, is conducive to the detection of circuit EMC and the control of electric cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
Fig. 1 is the structural representation of fixed rack structure of the present invention.
Fig. 2 is that the A of Fig. 1 is to structural representation.
Fig. 3 is the structural representation that fixed rack structure of the present invention removes bottom plate and lead sealing cover plate.
Fig. 4 is the structural representation of fixed mount of the present invention.
Fig. 5 is the structural representation that fixed mount of the present invention is provided with LOAD CELLS and bracket.
Wherein: 1-fixed mount, 1-1-runners, 1-2-base plate, 1-3-spacing edge-cut, 1-4-battery compartment seat, 1-5-limit base, 1-6-top board, 1-7-wallboard, 1-8-cable hole, 1-9-outer gusset, 1-10-upper mounting column, 1-11-installed surface, 1-12-boss, 1-13-Internal baffle, 1-14-support column, 1-15-lower mounting column, 1-16-circular table, 1-17-internal partition, 1-18-wire casing, 1-19-supporting station, 2-regulate leg, 3-lead sealing cover plate, 4-bottom plate, 5-socket, the printed board of 6-control circuit, the printed board of 7-power circuit, the printed board of 8-treatment circuit, 8-1-calibration switch, 9-bracket, 10-LOAD CELLS.
Embodiment
See shown in Fig. 1 ~ 3, a kind of fixed rack structure installing LOAD CELLS of the present invention, fixed mount 1 of the present invention comprises wallboard 1-7 and the base plate 1-2 that top board 1-6 is connected to top board 1-6 periphery, this fixed mount 1 makes one-piece construction by metal material, wallboard 1-7 periphery is provided with multiple outer gusset 1-9, the battery compartment seat 1-4 be connected with base plate 1-2 is provided with outside the wallboard 1-7 of side wherein, the outer wall of battery compartment seat 1-4 is provided with spacing edge-cut 1-3, when upper encloser be arranged on fixed mount 1 covers on fixed mount 1 time, the battery compartment of upper encloser is arranged on battery compartment portion of the present invention or top, the battery case be placed in upper encloser battery compartment is provided with limited block, this limited block then inserts the spacing edge-cut 1-3 of this battery compartment seat 1-4 outer wall, can carry out spacing to battery case.
See Fig. 1, shown in 2, top board 1-6 of the present invention is provided with installed surface 1-11 and at least three the limit base 1-5 installing LOAD CELLS 10, the installed surface 1-11 of this top board 1-6 is protruding installed surface, LOAD CELLS 10 is arranged on installed surface 1-11, bracket 9 is arranged on the top of LOAD CELLS 10, the scale pan is arranged in bracket 9, reached in LOAD CELLS 10 by claiming the weight of thing by bracket 9, the two limit base 1-5 arranged by diagonal angle can carry out spacing to bracket 9, or the limit base 1-5 of centre is provided with pull bar, when bracket 9 is subject to outside impulsive force and is greater than the carrying scope of LOAD CELLS 10, bracket 9 is supported by limit base 1-5, and when tension, undertaken spacing by pull bar, thus protection LOAD CELLS 10.See shown in Fig. 1,5, the top of top board 1-6 of the present invention is also provided with the upper mounting column 1-10 of more than three, wireless network card can be arranged on upper mounting column 1-10.
See shown in Fig. 2 ~ 5, top board 1-6 of the present invention and wallboard 1-7 forms the box structure of bottom opening, the Yi Jiaochu of wallboard 1-7 is provided with the Internal baffle 1-13 connected with top board 1-6, this Internal baffle 1-13 is L shape, Internal baffle 1-13 and top board 1-6 and wallboard 1-7 is formed independently to demarcate and installs cavity, treatment circuit printed board 8 with calibration switch 8-1 is arranged on installs in cavity, lead sealing cover plate 3 is arranged on the opening part demarcated and install cavity by securing member, lead sealing cover plate 3 is provided with the demarcation hole corresponding with calibration switch 8-1, and lead sealing paper or lead sealing screw to be arranged on lead sealing cover plate 3 and to get lodged in and demarcate hole.See 2, shown in 3, the present invention demarcates installation cavity and is provided with at least two boss 1-12, boss 1-12 is provided with threaded hole, treatment circuit printed board 8 is arranged on the boss 1-12 of installation cavity, treatment circuit printed board 8 is arranged on this boss 1-12 by securing member, through wires hole on wallboard 1-7 is installed cavity with demarcation and is communicated, Internal baffle 1-13 is provided with wire casing, the output signal cable of LOAD CELLS 10 is connected with treatment circuit printed board 8 through wallboard 1-7, LOAD CELLS 10 will receive load, weight signal is transformed into corresponding electric signal, and reach treatment circuit printed board 8 by signal cable, the treatment circuit for the treatment of circuit printed board 8 carries out A/D conversion, analog electrical signal will be collected and transfer digital signal to, control circuit is provided again by data-signal, therefore do not opening under lead sealing prerequisite, open bottom plate 4 and upper encloser can detect the parts in electronic scales, maintenance or replacing, and can not treatment circuit be affected.
See Fig. 1, shown in 2, cavity is divided into independently mainboard installation cavity and power panel installation cavity by the present invention internal partition 1-17 be connected on top board 1-6 and wallboard 1-7, it is adjacent that demarcation installation cavity and mainboard install cavity, control circuit printed board 6 is arranged in mainboard installation cavity, there are in mainboard installation cavity at least two support column 1-14, control circuit printed board 6 is arranged on support column 1-14 by securing member, because Internal baffle 1-13 is provided with wire casing, by cable, treatment circuit is connected with control circuit, data after process are reached control circuit, display and the transmission of data is realized by control circuit, and internal partition 1-17 is also provided with wire casing 1-18, at least one cable hole 1-8 on wallboard 1-7 communicates with mainboard installation cavity, facilitate routing traces.
See shown in Fig. 2 ~ 4, the present invention is provided with circular table 1-16 in power supply installation cavity, the corner place being provided with circular table 1-16 in power supply installation cavity is provided with supporting station 1-19, power circuit printed board 7 is arranged on circular table 1-16 by securing member, in power circuit printed board 7, surrounding and circular table 1-16 fit, device in power circuit printed board 7 is arranged downwards, power circuit printed board 7 surrounding can be made to fit with installation cavity inner wall, make to form a gapless cavity between power circuit printed board 7 back side containing solder joint and pedestal, the foreign matters such as small worm can be stoped to enter, upward by the pad portion of easy short circuit simultaneously, small worm is not easily creeped, therefore the problem that power supply partial short-circuit etc. is damaged is effectively reduced.
See shown in Fig. 1 ~ 3, bottom plate 4 of the present invention is arranged on by securing member in the mounting hole of wallboard 1-7, bottom plate 4 blocks power circuit printed board 7 and control circuit printed board 6, and bottom plate 4 has gauge tap and communication interface, is connected with external unit by communication interface.
See shown in Fig. 2,3, the bottom that top board 1-6 of the present invention is positioned at power supply installation cavity side is provided with plural lower mounting column 1-15, socket 5 can be arranged on lower mounting column 1-15, four bights of fixed mount 1 are provided with runners 1-1, regulate leg 2 to be screwed on each runners 1-1.

Claims (8)

1. one kind the fixed rack structure of LOAD CELLS is installed, it is characterized in that: described fixed mount (1) comprises top board (1-6), is connected to the wallboard (1-7) of top board (1-6) periphery and base plate (1-2), wherein wallboard (1-7) outside of side is provided with the battery compartment seat (1-4) be connected with base plate (1-2), and the outer wall of battery compartment seat (1-4) is provided with spacing edge-cut (1-3), described top board (1-6) is provided with the installed surface (1-11) and at least three limit bases (1-5) of installing LOAD CELLS (10), described top board (1-6) and wallboard (1-7) form the box structure of bottom opening, the Yi Jiaochu of wallboard (1-7) is provided with the Internal baffle (1-13) connected with top board (1-6), Internal baffle (1-13) is formed independently to demarcate with top board (1-6) and wallboard (1-7) installs cavity, the treatment circuit printed board (8) with calibration switch (8-1) is arranged on to demarcate installs in cavity, lead sealing cover plate (3) is arranged on the opening part demarcated and install cavity by securing member, lead sealing cover plate (3) is provided with the demarcation hole corresponding with calibration switch (8-1), and lead sealing paper or lead sealing screw be arranged on demarcate cover plate (3) go up and get lodged in demarcation hole, cavity is divided into independently mainboard installation cavity and power panel installation cavity by the internal partition (1-17) be connected on top board (1-6) and wallboard (1-7), and demarcate and cavity and mainboard are installed to install cavity adjacent, control circuit printed board (6) is arranged in mainboard installation cavity, circular table (1-16) is provided with in described power supply installation cavity, power circuit printed board (7) is arranged on circular table (1-16) by securing member, the upper surrounding of power circuit printed board (7) and circular table (1-16) are fitted, device in power circuit printed board (7) is arranged downwards, bottom plate (4) is arranged on by securing member in the mounting hole of wallboard (1-7), bottom plate (4) blocks power circuit printed board (7) and control circuit printed board (6).
2. the fixed rack structure of installation LOAD CELLS according to claim 1, it is characterized in that: described demarcation is installed cavity and is provided with at least two boss (1-12), treatment circuit printed board (8) is arranged on the boss (1-12) of installation cavity by securing member, through wires hole on wallboard (1-7) is installed cavity with demarcation and is communicated, and Internal baffle (1-13) is provided with wire casing.
3. the fixed rack structure of installation LOAD CELLS according to claim 1, it is characterized in that: the corner place being provided with circular table (1-16) in described power supply installation cavity is provided with supporting station (1-19), and power circuit printed board (7) is arranged on circular table (1-16) by securing member.
4. the fixed rack structure of installation LOAD CELLS according to claim 1, it is characterized in that: there are in described mainboard installation cavity at least two support columns (1-14), control circuit printed board (6) is arranged on support column (1-14) by securing member, and upper at least one cable hole (1-8) of wallboard (1-7) communicates with mainboard installation cavity.
5. the fixed rack structure of installation LOAD CELLS according to claim 1, is characterized in that: described bottom plate (4) has gauge tap and communication interface.
6. the fixed rack structure of installation LOAD CELLS according to claim 1, it is characterized in that: the top of described top board (1-6) is also provided with the upper mounting column (1-10) of more than three, the bottom that top board (1-6) is positioned at power supply installation cavity side is provided with plural lower mounting column (1-15).
7. the fixed rack structure of installation LOAD CELLS according to claim 1, it is characterized in that: described wallboard (1-7) periphery is provided with reinforcement, four bights of fixed mount (1) are provided with runners (1-1), regulate leg (2) to be screwed on each runners (1-1).
8. the fixed rack structure of installation LOAD CELLS according to claim 1, is characterized in that: the installed surface (1-11) of described top board (1-6) is protruding installed surface, and LOAD CELLS (10) is arranged on installed surface (1-11).
CN201310520692.8A 2013-10-29 2013-10-29 Fixing frame structure for mounting weighing sensor Active CN103557923B (en)

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Application Number Priority Date Filing Date Title
CN201310520692.8A CN103557923B (en) 2013-10-29 2013-10-29 Fixing frame structure for mounting weighing sensor

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Application Number Priority Date Filing Date Title
CN201310520692.8A CN103557923B (en) 2013-10-29 2013-10-29 Fixing frame structure for mounting weighing sensor

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CN103557923A CN103557923A (en) 2014-02-05
CN103557923B true CN103557923B (en) 2015-05-13

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017104367A1 (en) * 2017-03-02 2018-09-06 Bizerba SE & Co. KG Load cell for a balance
CN113465718B (en) * 2021-09-03 2021-11-02 江苏卓铭电子科技有限公司 Calibration protection mechanism of electronic scale and electronic scale

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US7380462B2 (en) * 2005-03-25 2008-06-03 G-Tech. Co., Ltd. Apparatus and method for measuring supporting force of large diameter ferroconcrete piles
CN201421357Y (en) * 2009-04-23 2010-03-10 孟如荣 Weighting device with buffer module
CN101655387A (en) * 2009-07-28 2010-02-24 福州科杰电子衡器有限公司 Weighing platform of steel coil weigher
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