CN110474064A - A kind of thermal cell backrest type assembly device and assembly method - Google Patents
A kind of thermal cell backrest type assembly device and assembly method Download PDFInfo
- Publication number
- CN110474064A CN110474064A CN201910764581.9A CN201910764581A CN110474064A CN 110474064 A CN110474064 A CN 110474064A CN 201910764581 A CN201910764581 A CN 201910764581A CN 110474064 A CN110474064 A CN 110474064A
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- China
- Prior art keywords
- pile
- lower platen
- backup plate
- top board
- thermal cell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/30—Deferred-action cells
- H01M6/36—Deferred-action cells containing electrolyte and made operational by physical means, e.g. thermal cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/42—Grouping of primary cells into batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
Abstract
The invention discloses a kind of thermal cell backrest type assembly device and assembly methods, belong to thermal cell technical field.The assembly device devises one piece of backup plate in thermal cell assembly tooling, the portion profile of the shape in its section and pile components to be assembled coincide, backup plate is vertically installed on the lower platen of assembly device, keeps it vertical with lower platen, and do not contact with top board.Components stacking is carried out by the backup plate when pile is assembled, plays the role of pile components backrest, improves assembly efficiency, and avoids that the quality problems that components misplace and lead to the short circuit of pile occur in pile stacking process.
Description
Technical field
The present invention relates to a kind of thermal cell backrest type assembly device and assembly methods, belong to thermal cell technical field.
Background technique
In thermoelectricity pool structure, pile is the main body produced electricl energy, passes through the series-parallel combination stacked of certain amount single battery
It constitutes.Thermal cell undergoes the mechanical environments such as shock and vibration, acceleration to examine in use, therefore it is required that pile assembly needs
Neat, fastening, dislocation-free, otherwise thermal cell electrical property cannot be exported normally, or even thermal cell short circuit can occur and cause to use on bullet
The failure of electric equipment.
When pile is assembled in Conventional thermoelectric pond, assembly fixture used is to be locked at 3, band with screw by 3 or 4 screw rods
Or on 4 raised lower platens, single battery, flow collection sheet and asbestos pad are electric using the assembled in sequence that assembly fixture is required according to technique
Heap.Poor, not high suitable for the pile height thermal cell of the resistance to mechanics environment capacity of the assembly fixture.As thermal cell is in each field
Application is goed deep into, the growth of equipment power demand, and thermal cell galvanic pile design can be higher.When pile height is higher, only by assembly
3 on frame or 4 screw rods just not can guarantee the neat of every single battery assembly, and the assembly difficulty of thermal cell increase,
Working efficiency reduces, and pile is difficult to keep Relative vertical, and single battery is easy dislocation, and it is short to there is generation battery under mechanical environment
The hidden danger on road.
Summary of the invention
The technical solution of the invention is as follows: having overcome the deficiencies of the prior art and provide a kind of thermal cell backrest type assembly
Device is able to maintain that pile is vertical, and single battery is not easy to misplace for carrying out the assembly manipulation of pile in thermal cell, greatly improves
Production efficiency reduces assembly difficulty.
The technical solution of the invention is as follows: a kind of thermal cell backrest type assembles device, the assembly device include lower platen,
Top board, backup plate and three screw rods;Threaded hole there are three setting on lower platen, forms a triangle;Every screw rod from threaded,
For being vertically tightened in the threaded hole of lower platen, a hollow out cylindrical space is formed;Top board is that there are three the flat of arm plate for band
Hardened structure, the angle of arm plate between any two is identical, and through-hole is arranged on arm plate, the threaded hole of the relative position and lower platen of through-hole
Relative position is corresponding;Backup plate is located in hollow out cylindrical space, the portion profile of the shape in section and pile components to be assembled
It coincide, one end of backup plate is vertically installed on lower platen, keeps the vertical relation of backup plate and lower platen, there are one on other end top
A U-shaped opening, piece screw rod of U-shaped opening face;The aperture position of backup plate is lower than the height of pile at a distance from lower platen;Pile
When assembly, pile components to be assembled are stacked by backup plate;After pile stacks, three vertical screw rods pack into pressure
In plate three through-holes corresponding with three screw positions, the one of siding of top board is located between the two-arm of backup plate U-shaped opening;
Top board is parallel with lower platen to be installed, and locks top board down, for fastening pile.
The spacing of threaded hole between any two on the top board is equal, forms an equilateral triangle.
The U-shaped opening minimum dimension is greater than the arm board width of top board, so that the siding of top board and U-shaped opening two-arm
It does not contact.
The backup plate is machined using stainless steel plate.
The backup plate section is circular arc, and radian is 60 °~90 °.
The backup plate bottom is there are threaded hole, and corresponding position is equipped with through-hole on lower platen, will using screw by the through-hole
Backup plate is vertically fixed on lower platen from bottom.
Pile components to be assembled include single battery, positive drainage strip, cathode drainage strip and insulation asbestos pad.
Another technical solution provided by the invention is: a kind of thermal cell novel backrest formula assembly method, this method
Include the following steps:
(s1), when pile assembles, first three screw rods are screwed in the threaded hole of lower platen vertically by bottom thread, are allowed to
It is relatively parallel to stand on lower platen, backup plate is then fixed on lower platen vertically from the through-hole that bottom passes through lower platen with screw
On;
(s2), it is by vertical backup plate that pile components to be assembled are successively whole according to preset sequence when pile stacks
It is stacked on lower platen together;
(s3), pile stacking finishes, and three screw rods is packed into top board therewith in three through-holes of location matches, top board
One of siding is located between the two-arm of backup plate U-shaped opening;
(s4), by top board and lower platen keeping parallelism, and top board is locked down, thus by pile components to be assembled
Fastening.
The pile components to be assembled include single battery, positive drainage strip, cathode drainage strip and insulation asbestos pad.
The step (s4) will be locked top board and lower platen by nut.
Compared with the prior art, the invention has the advantages that:
1, the present invention is provided with and pile zero to be assembled in the hollow out cylindrical space that three screw rods and lower platen are formed
The backup plate that the portion profile of part matches, the vertical fixation of pile, pile are not easy crooked dislocation, improve when for pile assembly
The higher thermal cell preparation work efficiency of pile avoids that the short circuit that components misplace and lead to pile occurs in pile stacking process
And other issues.
2, the siding of top board of the present invention is not contacted with backup plate U-shaped opening two-arm, and pile stacking finishes, and down in locking
Pressing plate, so that backup plate is not influenced by other component during by pile components to be assembled fastening, pile zero to be assembled
Part has backup plate dependence always, and relative position is kept to be not easy crooked dislocation,
3, positive and negative anodes drainage strip when the setting of backup plate radian length of the present invention prevents length is too long from pile can be interfered to assemble
Output, and length is too short, does not have the effect for keeping its straight to the stacking of round pile.
4, backup plate arc radius of the invention is set as identical as thermal cell galvanic pile radius, so that components when pile stacks
Close with being bonded for backup plate, pile is substantially parallel with backup plate, is each perpendicular to lower platen, is played to the crooked misalignment of pile
Good prevention effect.
5, upper end of the invention is machined there are a strip open space, and aperture position is at a distance from lower platen
Lower than the height of pile, the leeway of lower platen pushing is remained, the installation for having combined top board is convenient.
Detailed description of the invention
Fig. 1 is the front view of thermal cell novel backrest formula of embodiment of the present invention assembly device;Label in figure is respectively as follows: 1-
Lower platen;2- screw;3- screw rod;4- backup plate;5- top board;6- nut.
Fig. 2 is lower platen outline drawing of the embodiment of the present invention.
Fig. 3 (a) is backup plate outline drawing front view of the embodiment of the present invention.
Fig. 3 (b) is backup plate outline drawing top view of the embodiment of the present invention.
Fig. 4 is top board outline drawing of the embodiment of the present invention.
Fig. 5 is screw profile figure of the embodiment of the present invention.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be described in detail.
As shown in Figure 1, this gives a kind of specific structure of thermal cell backrest type assembly device, the assembly device
Including lower platen 1, top board 5, backup plate 4 and three screw rods 3;Threaded hole there are three setting on lower platen 1, forms a triangle;
Every screw rod 3 for being vertically tightened in the threaded hole of lower platen 1, forms a hollow out cylindrical space, for putting from threaded
Set pile components;Top board 5 is band there are three the slab construction of arm plate, and the angle of arm plate between any two is identical, sets on arm plate
Through-hole is set, the relative position of through-hole is corresponding with the relative position of the threaded hole of lower platen 1, in order to enable uniform force, under described
The spacing of three threaded holes between any two on pressing plate 1 is equal, forms an equilateral triangle;It is empty that backup plate 4 is located at hollow out column
In, the portion profile of the shape in section and pile components to be assembled coincide, and one end of backup plate 4 is vertically installed at lower platen
On 1, the vertical relation of backup plate 4 and lower platen 1 is kept, there are a U-shaped opening, piece spiral shells of U-shaped opening face on other end top
Bar 3;The aperture position of backup plate 4 is lower than the height of pile at a distance from lower platen 1;When pile assembles, pile components to be assembled
It is stacked by backup plate 4;After pile stacks, three vertical screw rods 3 pack into top board 5 and three 3 positions pair of screw rod
In three through-holes answered, the one of siding of top board 5 is located between the two-arm of backup plate 4U type opening;Top board 5 and lower platen 1
Parallel installation, and top board 5 is locked down, for pile to be fastened.In a certain specific embodiment of the invention, process is locked
Top board 5 can be realized by tightening sleeve from the nut on threaded screw rod.
The U-shaped opening minimum dimension is greater than the arm board width of top board 5, so that the siding of top board 5 and U-shaped opening two
Arm does not contact.When due to locking top board 5, the siding of top board 5 is not contacted with U-shaped opening two-arm, and backup plate is with lower platen
It is vertically arranged, therefore can guarantee the Relative vertical of pile and lower platen, single battery relative position is fixed, will not misplace.
The backup plate bottom is there are threaded hole, and corresponding position is equipped with through-hole on lower platen 1, using screw by the through-hole,
Backup plate 4 is vertically fixed on lower platen 1 from bottom.In a certain specific embodiment of the invention, backup plate 4 passes through two stainless steels
Screw is fixed on lower platen.
As shown in Fig. 2, lower platen is machined into the plate structure of an equilateral triangle, stay above there are three and screw rod
The threaded hole that size matches is stood upright on lower platen for fixing three screw rods.Two screws passed through from bottom are logical
The through-hole that radian size matches with backup plate is crossed, backup plate is fixed, makes its standing upright on lower platen.In lower platen
It is upper to form a hollow circular cylindrical shape assembly device.
As shown in Fig. 3 (a) and Fig. 3 (b), backup plate is machined by stainless steel plate, pile components packet to be assembled
Include single battery, positive drainage strip, cathode drainage strip and insulation asbestos pad.These components be all it is circular, therefore, the backup plate
4 sections are arc, and radian is 60 °~90 °, backrest when stacking for round pile, and is installed perpendicular to the lower platen of bottom,
Pile is set to rely on backup plate the Relative vertical kept with lower platen;
Preferably, in a certain specific embodiment of the invention, the backup plate radian length is set as 60 °, this is leaned on
The output of plate radian length is too long when pile can be interfered to assemble positive and negative anodes drainage strip, it is too short, the stacking of round pile is not had
Make its straight effect.
Preferably, the radian diameter of the backup plate should be consistent with the circular dimension that need to assemble pile (present invention certain
It is Φ 37mm in one specific embodiment) it is being leaned on so that diameter round pile identical with backup plate radian can fully rely on when stacking
On plate, achieve the purpose that pile stacks perpendicular to lower platen and is parallel to backup plate, guarantees that skew will not occur for pile.Of the invention
In a certain specific embodiment, backup plate is circular arc, and arc diameter is Φ 37mm, is carried out for the thermal cell galvanic pile that diameter is Φ 37mm
It stacks.
Preferably, in a certain specific embodiment of the invention, the width of 5 arm plate of top board is 12mm, on backup plate
Hold it is machined there are the openings of wide 14mm, greater than the width of 5 arm plate of top board.Backup plate is for top board in assembling process
It places, can not only guarantee to keep the Relative vertical with lower platen in higher-height pile assembling process, but also improve pile
Assembly efficiency.The height of the opening avoids electricity for the outside extraction port of the top part drainage strip of thermal cell galvanic pile for 60mm
Pond positive or negative pole drainage strip assembling process is squeezed.
As shown in figure 4, top board 5 is band there are three the slab construction of arm plate, the angle of arm plate between any two is identical, arm plate
The relative position of upper setting through-hole, through-hole is corresponding with the relative position of the threaded hole of lower platen 1, and the width of siding is respectively less than backup plate
Spacing between U-shaped opening two-arm is stayed on siding there are three the through-hole structure to match with screw rod thickness, is passed through for nut logical
Hole fastens three screw rods.
As shown in figure 5, the screw rod that three size designs are the same, bottom is machined with to match with lower platen screw thread pore size
External screw thread, it is vertical fixed for being tightened with lower platen.Middle and upper part be machined with match with the circular through hole of top board siding it is outer
Screw thread, for compression to be fixed in top board by nut.
Device is assembled based on above-mentioned thermal cell backrest type, the present invention also provides a kind of thermal cell novel backrest formula assembly sides
Method, this method comprises the following steps:
(s1), when pile assembles, first three screw rods 3 are screwed in the threaded hole of lower platen 1 vertically by bottom thread, are made
It is relatively parallel stand on lower platen 1, then backup plate 4 is fixed on vertically from the through-hole that bottom passes through lower platen 1 with screw
On lower platen 1;
(s2), it is by vertical backup plate 4 that pile components to be assembled are successively whole according to preset sequence when pile stacks
It is stacked on lower platen 1 together;The pile components to be assembled include single battery, positive drainage strip, cathode drainage strip and absolutely
Kerb cotton pad;
(s3), pile stacking finishes, and three screw rods 3 is packed into top board 1 therewith in three through-holes of location matches, upper pressure
The one of siding of plate 5 is located between the two-arm of backup plate 4U type opening;
(s4), by 1 keeping parallelism of top board 5 and lower platen, and top board 5 is locked down, thus will be by pile to be assembled
Components fastening.
The step (s4) will be locked top board 5 and lower platen 1 by nut.
The preferred embodiment of the present invention is only intended to help to illustrate the present invention, and that there is no detailed descriptionthes is all for preferred embodiment
Details does not limit the invention to the specific embodiments described.Obviously, according to the content of this specification, can make very much
Modifications and variations.These embodiments are chosen and specifically described to this specification, is principle and reality in order to better explain the present invention
Border application, so that skilled artisan be enable to utilize the present invention well.The present invention only by claims and its
The limitation of full scope and equivalent.
Claims (10)
1. a kind of thermal cell backrest type assembles device, it is characterised in that including lower platen (1), top board (5), backup plate (4) and three
Root screw rod (3);Threaded hole there are three setting on lower platen (1), forms a triangle;Every screw rod (3) is from threaded, for hanging down
It is directly tightened in the threaded hole of lower platen (1), forms a hollow out cylindrical space;Top board (5) is that there are three the flat of arm plate for band
Hardened structure, the angle of arm plate between any two is identical, and through-hole, the relative position of through-hole and the screw thread of lower platen (1) are arranged on arm plate
The relative position in hole is corresponding;Backup plate (4) is located in hollow out cylindrical space, the portion of the shape in section and pile components to be assembled
Exceptionally shape is coincide, and one end of backup plate (4) is vertically installed on lower platen (1), keeps the vertical pass of backup plate (4) and lower platen (1)
System, there are a U-shaped opening, piece screw rods (3) of U-shaped opening face on other end top;The aperture position and lower platen of backup plate (4)
(1) distance is lower than the height of pile;When pile assembles, pile components to be assembled are stacked by backup plate (4);Pile heap
After folded, three vertical screw rods (3) are packed into top board (5) three through-holes corresponding with three screw rod (3) positions, upper pressure
Plate (5) one of siding is located between the two-arm of backup plate (4) U-shaped opening;Top board (5) installation parallel with lower platen (1), and
Top board (5) are locked down, for fastening pile.
2. a kind of thermal cell novel backrest formula according to claim 1 assembles device, it is characterised in that the top board (5)
On threaded hole spacing between any two it is equal, form an equilateral triangle.
3. a kind of thermal cell novel backrest formula according to claim 1 assembles device, it is characterised in that the U-shaped opening is most
Small size is greater than the arm board width of top board (5), so that the siding of top board (5) is not contacted with U-shaped opening two-arm.
4. a kind of thermal cell novel backrest formula according to claim 1 assembles device, it is characterised in that the backup plate (4) is adopted
It is machined with stainless steel plate.
5. a kind of thermal cell novel backrest formula according to claim 1 assembles device, it is characterised in that the backup plate (4) is cut
Face is circular arc, and radian is 60 °~90 °.
6. a kind of thermal cell novel backrest formula according to claim 1 assembles device, it is characterised in that the backup plate bottom
There are threaded hole, corresponding position is equipped with through-hole on lower platen (1), using screw by the through-hole, backup plate (4) is vertical from bottom
It is fixed on lower platen (1).
7. a kind of thermal cell novel backrest formula according to claim 1 assembles device, it is characterised in that pile zero to be assembled
Component includes single battery, positive drainage strip, cathode drainage strip and insulation asbestos pad.
8. being based on a kind of thermal cell novel backrest formula assembly method as claimed in claim 6, it is characterised in that include the following steps:
(s1), when pile assembles, first three screw rods (3) are screwed in the threaded hole of lower platen (1) vertically by bottom thread, are made
It is relatively parallel stand on lower platen (1), the through-hole for then passing through lower platen (1) from bottom with screw is vertical by backup plate (4)
It is fixed on lower platen (1);
(s2), it is by vertical backup plate (4) that pile components to be assembled are successively neat according to preset sequence when pile stacks
It is stacked on lower platen (1);
(s3), pile stacking finishes, and three screw rods (3) is packed into top board (1) therewith in three through-holes of location matches, upper pressure
Plate (5) one of siding is located between the two-arm of backup plate (4) U-shaped opening;
(s4), by top board (5) and lower platen (1) keeping parallelism, and top board (5) are locked down, thus by pile to be assembled
Components fastening.
9. a kind of thermal cell novel backrest formula assembly method according to claim 8, it is characterised in that the distribution to be installed
Heap components include single battery, positive drainage strip, cathode drainage strip and insulation asbestos pad.
10. a kind of thermal cell novel backrest formula assembly method according to claim 8, it is characterised in that the step (s4)
Top board (5) and lower platen (1) will be locked by nut.
Priority Applications (1)
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CN201910764581.9A CN110474064A (en) | 2019-08-19 | 2019-08-19 | A kind of thermal cell backrest type assembly device and assembly method |
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CN201910764581.9A CN110474064A (en) | 2019-08-19 | 2019-08-19 | A kind of thermal cell backrest type assembly device and assembly method |
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CN201910764581.9A Pending CN110474064A (en) | 2019-08-19 | 2019-08-19 | A kind of thermal cell backrest type assembly device and assembly method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114464827A (en) * | 2022-01-18 | 2022-05-10 | 贵州梅岭电源有限公司 | Assembling device and assembling method for self-fastening small-sized thermal battery |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005216740A (en) * | 2004-01-30 | 2005-08-11 | Fdk Energy Co Ltd | Cylindrical battery |
CN202210541U (en) * | 2011-09-27 | 2012-05-02 | 中国电子科技集团公司第十八研究所 | Thermal battery pile assembling rack |
CN204991801U (en) * | 2015-08-28 | 2016-01-20 | 中国电子科技集团公司第十八研究所 | Open hot battery assembly frame inclines |
CN106410234A (en) * | 2016-07-27 | 2017-02-15 | 上海空间电源研究所 | Flexible galvanic pile assembling tool for thermal battery |
CN108598517A (en) * | 2018-01-11 | 2018-09-28 | 北方特种能源集团有限公司西安庆华公司 | A kind of general pile of thermal cell ties up mould |
-
2019
- 2019-08-19 CN CN201910764581.9A patent/CN110474064A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005216740A (en) * | 2004-01-30 | 2005-08-11 | Fdk Energy Co Ltd | Cylindrical battery |
CN202210541U (en) * | 2011-09-27 | 2012-05-02 | 中国电子科技集团公司第十八研究所 | Thermal battery pile assembling rack |
CN204991801U (en) * | 2015-08-28 | 2016-01-20 | 中国电子科技集团公司第十八研究所 | Open hot battery assembly frame inclines |
CN106410234A (en) * | 2016-07-27 | 2017-02-15 | 上海空间电源研究所 | Flexible galvanic pile assembling tool for thermal battery |
CN108598517A (en) * | 2018-01-11 | 2018-09-28 | 北方特种能源集团有限公司西安庆华公司 | A kind of general pile of thermal cell ties up mould |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114464827A (en) * | 2022-01-18 | 2022-05-10 | 贵州梅岭电源有限公司 | Assembling device and assembling method for self-fastening small-sized thermal battery |
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