CN218676797U

CN218676797U - Module lower bracket structure and module bracket assembly

Info

Publication number: CN218676797U
Application number: CN202222641814.6U
Authority: CN
Inventors: 王宁; 吴家鹏; 车玲娟; 孙伟; 王俊华
Original assignee: Gmcc Electronic Technology Wuxi Co ltd
Current assignee: Gmcc Electronic Technology Wuxi Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-03-21
Anticipated expiration: 2032-10-09

Abstract

The utility model discloses a module lower support structure and a module support assembly, which comprises a plurality of lower supports arranged side by side, wherein the lower supports are provided with a plurality of lower support grooves which are distributed in an array manner, and supporting tables are arranged in the lower support grooves; a plurality of lower struts are arranged on the lower bracket; a plurality of dovetail blocks are respectively arranged on two opposite side surfaces of the lower bracket, and dovetail grooves are formed between the adjacent dovetail blocks; the lower brackets are arranged side by side and are inserted and connected through tenon-and-mortise structures, the upper brackets are arranged side by side, and the lower brackets and the corresponding upper brackets are inserted and matched with the upper support through the lower support and are fixed through fasteners; a plurality of upper pressing grooves are formed in the upper support, a connecting bridge is arranged between every two adjacent upper pressing grooves, and a blocking piece and a clamping hook are arranged on the connecting bridge; the upper support is provided with a plurality of upper struts. The utility model discloses a lower carriage and upper bracket are through the cooperation of pegging graft to it is fixed through fastener axial locking, and the fastening effect is more reliable and more stable, guarantees the voltage stability of module, reduces the safe risk of module.

Description

Module lower bracket structure and module bracket assembly

Technical Field

The utility model belongs to the technical field of electric energy storage module technique and specifically relates to a supporting structure and module support assembly under module.

Background

The capacitor module is formed by combining a plurality of capacitor monomers and a bracket, has the advantages of extremely high efficiency, high current capacity, wide voltage range, wide use temperature range, long rewinding service life, long working life, no maintenance, easy maintenance, simple integration, low cost and the like, and has wide development prospect. The electric energy storage module is used as a power supply with safe functions, electric energy is required to be output, the module is required to have the functions of monitoring, sampling, calculating, diagnosing, alarming and the like, and corresponding electric control signals are required to be acquired.

The conventional capacitor module generally has the following disadvantages: in the process of assembling the capacitor units into the module, due to the tolerance of the outer diameters of the capacitor units, the bracket for fixing the unit is difficult to achieve the fastening effect on each capacitor unit, and the unit is likely to cause the damage of welding points between the connecting sheets and the unit under the condition of looseness or long-term vibration, so that voltage abnormity is caused, and the safety risk is brought to the use of the whole module.

SUMMERY OF THE UTILITY MODEL

The applicant aims at the defects of the existing capacitor module and provides a module lower support structure and a module support assembly which are reasonable in structure, and the support is more stable and reliable in fastening of each single body.

The utility model discloses the technical scheme who adopts as follows:

a module lower support structure comprises a plurality of lower supports which are arranged side by side, wherein a plurality of lower support grooves are formed in the lower supports, the lower support grooves are distributed in an array manner, and support tables are arranged in the lower support grooves; a plurality of lower struts are arranged on the lower bracket; a plurality of dovetail blocks are respectively arranged on two opposite side surfaces of the lower bracket, and dovetail grooves are formed between the adjacent dovetail blocks.

As a further improvement of the technical scheme:

the first dovetail block and the first dovetail groove on one side surface of the lower bracket are matched with the second dovetail groove and the second dovetail block on the other side surface of the other lower bracket.

A plurality of limiting ribs are arranged on the table top of the supporting table along the circumferential direction.

A plurality of rib plates are respectively arranged between the lower supporting grooves of the lower bracket and between the lower supporting grooves and the dovetail blocks.

The lower bracket is a square bracket body; the lower support comprises a plurality of lower side supports vertically extending upwards from the edge part of the lower support and a plurality of lower middle supports vertically extending upwards from the middle part of the lower support; the lower support is provided with a slot or a jack, or the lower support is provided with a plug connector.

A module support assembly comprises the module lower support structure and the module upper support structure, wherein the module upper support structure comprises a plurality of upper supports which are arranged side by side, the plurality of lower supports are arranged side by side and are spliced through tenon-and-mortise structures, the plurality of upper supports are arranged side by side, and the lower supports and the corresponding upper supports are spliced and matched through the lower support and the upper support and are fixed through fasteners; a plurality of upper pressing grooves are formed in the upper support, a connecting bridge is arranged between every two adjacent upper pressing grooves, and a blocking piece and a clamping hook are arranged on the connecting bridge; the upper support is provided with a plurality of upper struts.

The two sides of the connecting bridge are symmetrically provided with a baffle sheet and a clamping hook.

A plurality of limiting grooves are arranged on the top surface of the upper bracket and between the two rows of upper pressing grooves.

The upper bracket is a square bracket body; the upper support columns comprise a plurality of upper side columns vertically extending downwards at the edge part of the upper support and a plurality of upper middle columns vertically extending downwards at the middle part of the upper support; the upper support is provided with a plug connector, or the upper support is provided with a slot or a jack.

The utility model has the advantages as follows:

the utility model discloses a lower carriage passes through the bayonet joint and the slot or the jack cooperation of pegging graft of pillar with the upper bracket to through fastener axial locking fixed, the fastening effect is more reliable and more stable, guarantees the voltage stability of module, reduces the safe risk of module. The lower carriage is fixed a position and is locked a plurality of electric capacity monomers through a plurality of constant head tanks respectively with the upper bracket, and the free fastening effect of electric capacity is better, be difficult to not hard up, and the fastening is more reliable and more stable, guarantees the voltage stability of module, reduces the safe risk of module. The upper bracket performs pre-positioning and fixing on the connecting sheet through the transverse positioning structure and the longitudinal positioning structure, and positions the FPC board through the limiting groove, so that the connecting sheet and the FPC board are ensured to be installed in place.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a perspective view of the lower bracket set.

Fig. 5 is an enlarged view of a portion B in fig. 4.

Fig. 6 is a perspective view of a single upper bracket.

Fig. 7 is a bottom view of fig. 6.

Fig. 8 is a cross-sectional view of section C-C in fig. 7.

Fig. 9 is an enlarged view of a portion D in fig. 8.

Fig. 10 is a perspective view of a single connecting piece.

Fig. 11 is a cross-sectional view of fig. 10.

Fig. 12 is a schematic view of a connection structure of the capacitor bank and the connecting plate set.

In the figure:

10. a lower bracket set; 1. a lower bracket; 11. a lower support groove; 111. a support table; 112. limiting ribs; 12. a lower side column; 121. a slot; 13. a lower center pillar; 131. a jack; 14. a first dovetail block; 15. a first dovetail groove; 16. a second dovetail block; 17. a second dovetail groove; 18. a rib plate;

20. an upper bracket group; 2. an upper bracket; 21. an upper compaction groove; 22. an upper side column; 221. a first plug-in connector; 23. an upper center pillar; 231. a second plug-in connector; 24. a connecting bridge; 25. a baffle plate; 26. a hook; 27. a limiting groove;

30. a capacitor bank; 3. a capacitor unit; 31. a negative pole post; 32. a sleeve;

40. connecting sheet groups; 4. connecting sheets; 41. a negative electrode connection hole; 42. a positive electrode connecting part; 421. a recessed portion; 422. a convex edge; 423. a lower waist; 43. a lateral waist; 5. a positive output sheet; 6. a negative output sheet;

50. a flexible circuit board assembly; 7. an FPC board; 71. collecting slices; 8. an adapter plate;

9. a wire protecting plate; 91. and a support plate.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and 2, the present invention includes a support assembly, a capacitor set 30, a connecting piece set 40 and a flexible circuit board set 50, wherein the capacitor set 30 is disposed in the support assembly, the connecting piece set 40 is electrically connected to the top of the capacitor set 30, and the connecting piece set 40 is electrically connected to the flexible circuit board set 50.

The support assembly includes lower carriage group 10 and upper bracket group 20, and lower carriage group 10 includes a plurality of lower carriage 1 of arranging side by side, connects through grafting structure between the adjacent lower carriage 1, and upper carriage group 20 includes a plurality of upper bracket 2 of arranging side by side, and lower carriage 1 passes through fastener fixed connection with the upper bracket 2 that corresponds. The capacitor bank 30 comprises a plurality of capacitor units 3, and a plurality of capacitor units 3 are vertically arranged between the lower support group 10 and the upper support group 20 in an array. The connecting sheet group 40 comprises a plurality of connecting sheets 4, a positive electrode output sheet 5 and a negative electrode output sheet 6, the plurality of capacitor monomers 3 are connected through the plurality of connecting sheets 4 to realize series or parallel arrangement, the positive electrode output sheet 5 is connected to the positive electrode of the first capacitor monomer 3 in series combination or parallel combination, and the negative electrode output sheet 6 is connected to the negative electrode of the last capacitor monomer 3 in series combination or parallel combination. The flexible circuit board group 50 comprises a plurality of FPC boards 7 and a plurality of adapter boards 8, a plurality of acquisition sheets 71 are arranged on the FPC boards 7, and the acquisition sheets 71 are connected with the connecting sheets 4 to acquire electric control signals of the capacitor units 3; one end of each FPC board 7 is connected to the adapter board 8, and the adapter board 8 can be connected with a control circuit board (not shown in the figure) and transmits the electric control signals collected by each FPC board 7 to the control circuit board; the capacitor single body 3 adopts the FPC board 7 as a sampling circuit, the FPC board 7 realizes the acquisition of electric control signals of the capacitor single body 3 through the acquisition sheet 71 and the connecting sheet 4, the wireless beam formation of the module is realized, the structure is simplified, the weight is reduced, the heat dissipation and the weldability are better, the space for accommodating the wire harness is not required to be reserved during the design, the integrated design is more facilitated, the space volume of the module is reduced, and the requirement on the installation space of the module is reduced; moreover, the connecting position of the collecting sheet 71 and the connecting sheet 4 can be adjusted at will according to requirements, the space of each part is reasonably utilized, the position arrangement of the collecting sheet 71 is more flexible and has no limitation, the minimum design can be carried out on the module to the maximum extent, and the space volume of the module is reduced; the acquisition sheet 71 and the connection sheet 4 are fixed by welding, so that the contact reliability and the sampling precision are improved, the risk of poor contact caused by missing insertion, loose insertion and the like is reduced, and the transmission reliability of a sampling signal is ensured. The bottom of the adapter plate 8 is provided with a wire protecting plate 9 for fixing and protecting the adapter plate 8, and the wire protecting plate 9 is connected to the upper bracket 2 through a plurality of Z-shaped supporting plates 91.

As shown in fig. 4 and 5, each lower rack 1 of the lower rack set 10 is a square rack, and the long sides of adjacent lower racks 1 are connected side by side. A plurality of round lower supporting grooves 11 are formed in the lower support 1, and the plurality of lower supporting grooves 11 are distributed in an array; the bottom of the lower supporting groove 11 is protruded with a supporting platform 111 along the radial direction, and the table top of the supporting platform 111 is provided with a plurality of limiting ribs 112 along the circumferential direction. Be provided with a plurality of lower pillars on every lower carriage 1, the lower pillar includes that a plurality of lower side posts 12 that 1 marginal part of lower carriage vertically upwards stretched out and a plurality of lower center pillars 13 are vertically upwards stretched out to 1 middle part of lower carriage, and slot 121 has been seted up at lower side post 12 top, and jack 131 has been seted up at lower center pillar 13 top. A plurality of first dovetail blocks 14 are arranged on the long side surface of one side of the lower support 1, and a first dovetail groove 15 is formed between every two adjacent first dovetail blocks 14; a plurality of second dovetail blocks 16 are arranged on the long side surface of the other side of the lower bracket 1, and a second dovetail groove 17 is formed between every two adjacent second dovetail blocks 16; the first dovetail block 14 and the second dovetail groove 17 of adjacent lower support 1 are matched, the second dovetail block 16 and the first dovetail groove 15 are matched, the first dovetail block 14 and the second dovetail groove 17 are inserted, the second dovetail block 16 and the first dovetail groove 15 are inserted to form a mortise and tenon joint structure, the adjacent lower support 1 is inserted through the mortise and tenon joint structure, and the lower supports 1 are radially positioned. A plurality of rib plates 18 are separately arranged between the lower supporting grooves 11 of the lower support 1 and between the lower supporting grooves 11 and the dovetail blocks, so that the connection strength of the lower support 1 is improved.

As shown in fig. 6 to 9, each upper rack 2 of the upper rack set 20 is a square rack body, and the long sides of the adjacent lower racks 1 are arranged side by side. Offer on the upper bracket 2 and compress tightly groove 21 on a plurality of, it is corresponding with lower support groove 11 of lower carriage 1 to go up to compress tightly groove 21, insert in lower support groove 11 under electric capacity monomer 3 tip, the upper end inserts in compressing tightly the groove 21, go up to compress tightly groove 21 and compress tightly electric capacity monomer 3 on supporting bench 111 of lower support groove 11, carry out axial locking to electric capacity monomer 3, lower support groove 11 constitutes the constant head tank with last compress tightly groove 21, carry out radial positioning to electric capacity monomer 3, lower carriage 1 and upper bracket 2 are fixed a position and are locked a plurality of electric capacity monomers 3 through a plurality of constant head tanks respectively, electric capacity monomer 3's fastening effect is better, be difficult to become flexible, the fastening is more reliable and more stable, guarantee the voltage stability of module, reduce the safe risk of module. Each upper support 2 is provided with a plurality of upper pillars, each upper pillar comprises a plurality of upper pillars 22 vertically extending downwards from the edge of the upper support 2 and a plurality of upper middle pillars 23 vertically extending downwards from the middle of the upper support 2, the bottom of each upper pillar 22 is provided with a first plug-in connector 221, and the bottom of each upper middle pillar 23 is provided with a second plug-in connector 231; the upper side column 22 corresponds to the lower side column 12 of the lower bracket 1, and the first plug connector 221 of the upper side column 22 is inserted into the slot 121 of the lower side column 12; the upper center pillar 23 corresponds to the lower center pillar 13 of the lower bracket 1, and the second socket 231 of the upper center pillar 23 is inserted into the insertion hole 131 of the lower center pillar 13. The lower support 1 and the upper support 2 are matched with the slots or the jacks through the plug-in connectors of the upper support and the lower support in a plug-in mode, and are axially locked and fixed through the fastening pieces, the fastening effect is more stable and reliable, the voltage stability of the module is guaranteed, and the safety risk of the module is reduced. A connecting bridge 24 is arranged between the top surface of the upper bracket 2 and two adjacent upper pressing grooves 21, and as shown in fig. 2, the connecting sheet 4 spans above the connecting bridge 24; as shown in fig. 8 and 9, two sides of the connecting bridge 24 corresponding to the width direction of the connecting sheet 4 are symmetrically provided with a blocking piece 25 and a blocking hook 26, the blocking pieces 25 on the two sides form a transverse positioning structure to transversely position the connecting sheet 4, the blocking hooks 26 on the two sides form a longitudinal positioning structure to longitudinally position the connecting sheet 4, and before welding and fixing, the upper bracket 2 performs pre-positioning and fixing on the connecting sheet 4 through the transverse positioning structure and the longitudinal positioning structure to ensure that the connecting sheet 4 is installed in place. As shown in fig. 6 and 8, a plurality of limiting grooves 27 are further disposed on the top surface of the upper bracket 2 and between the two rows of upper pressing grooves 21, and are used for positioning the FPC boards 7 to ensure that the FPC boards 7 are mounted in place.

As shown in fig. 1 to 3 and 12, in the present embodiment, the capacitor units 3 of the capacitor bank 30 are arranged in series, the negative poles 31 of the capacitor units 3 face the same side and both face the upper side, the housing of the capacitor unit 3 communicates with the positive pole thereof, and the negative pole of the capacitor unit 3 extends out from the center of the top surface of the housing; the tops of the adjacent capacitor units 3 are connected in series in sequence through connecting sheets 4.

As shown in fig. 10 and 11, the connecting piece 4 is provided with two ends with a drop height, and the middle section is similar to a Z shape; one end of the connecting sheet 4 is round, a negative connecting hole 41 is formed in the surface of the round end, and the negative connecting hole 41 is sleeved on the negative pole 31 of one capacitor unit 3; the other end of the connecting sheet 4 is bent downwards to form an anode connecting part 42, and the anode connecting part 42 is connected to the top surface (namely the anode) of the shell of the next adjacent capacitor unit 3; adjacent electric capacity monomer 3 is drawn forth, is welded, is realized establishing ties fixedly in the same end on the top through connection piece 4, for the mode is drawn forth at prior art's top, bottom both ends, has simplified manufacturing procedure, has promoted processing ageing and machining efficiency, has also improved the uniformity of processing, has effectively reduced the assembly cost, and is also more convenient in the aspect of product maintainability moreover. The middle of the positive electrode connecting part 42 is provided with a concave part 421, convex edges 422 are formed on two sides of the concave part 421, the concave part 421 is thinner, welding and fixing are facilitated, the convex edges 422 on two sides are thicker, a wider current flow area can be ensured, and the power transmission performance is better. The bottom side of the positive electrode connecting portion 42 is concave to form a bottom waist 423, two sides of the other end of the connecting piece 4 are also concave to form a side waist 43, and the bottom waist 423 and the side waist 43 are designed to be concave arc edges; as shown in fig. 3, the positive electrode connecting end (head end) and the negative electrode connecting end (tail end) of each connecting sheet 4 are sequentially arranged end to end, and the concave bottom waist 423 and the concave side waist 43 can give way to the adjacent connecting sheets 4, so as to ensure compact layout; meanwhile, the safety distance between two adjacent connecting sheets 4 can be increased, and the power transmission performance is ensured. The connecting sheet 4 is integrally stamped by adopting a sheet metal forming process, and is made of 1-series or 3-series aluminum materials, so that the connecting sheet has good extensibility and tensile strength, and good formability, plasticity, weldability and corrosion resistance. As shown in fig. 11 and 12, the thickness H1 of the negative electrode terminal plate surface of the connecting sheet 4 is in the range of 2mm to 5mm, so that the current flow area is ensured, the low current conduction internal resistance between the capacitor units 3 is ensured, and the bookstore performance is ensured. The relation between the distance D from the central point of the negative connecting hole 41 to the bending part of the connecting sheet 4, the radius r of the capacitor single body 3, the distance D between two adjacent capacitor single bodies 3 and the thickness t of the sleeve 32 of the capacitor single body 3 satisfies the following conditions: r is less than D and less than r + D + t, and the connecting sheet 4 can be ensured to avoid the sleeve 32 of the capacitor single body 3 for welding while the gap value between two adjacent capacitor single bodies 3 is met, so that the welding reliability and the conductivity are ensured. The thickness h of the bottom plate of the concave part 421 of the positive electrode connecting part 42 is in the range of 0.8-1.5 mm, so that the current conductivity is met, and the firmness of laser penetration welding is also met; the range of the distance S between the innermost point and the outermost point of the concave part 421 is 8.6 mm-14.5 mm, so that the welding sectional area between the connecting sheet 4 and the capacitor single body 3 can be ensured, and the welding reliability is improved. The range of the height H2 of the convex edge 422 of the positive electrode connecting part 42 protruding from the top surface of the concave part 421 is 2 mm-4 mm, so that the strength of a welding area is ensured, welding deformation is prevented, and welding consistency is ensured. After the connecting sheet 4 is connected to the capacitor single body 3, the range of the distance L between the outermost point of the positive electrode connecting portion 42 and the outermost point of the corresponding part of the negative electrode column 31 of the corresponding capacitor single body 3 is 2 mm-12 mm, so that the safety distance between the connecting sheet 4 and the negative electrode column 31 of the capacitor single body 3 is ensured, the possibility of creepage is reduced, and the safety and reliability of power transmission are ensured.

The above description is illustrative of the present invention and is not intended to limit the present invention, and the present invention may be modified in any manner without departing from the spirit of the present invention. For example, in other embodiments, a plug connector may be disposed on the lower support of the lower bracket 1, and a slot or a jack may be correspondingly disposed on the upper support of the upper bracket 2.

Claims

1. The utility model provides a support structure under module which characterized in that: the support comprises a plurality of lower supports (1) arranged side by side, wherein the lower supports (1) are provided with a plurality of lower support grooves (11), the lower support grooves (11) are distributed in an array manner, and support tables (111) are arranged in the lower support grooves (11); a plurality of lower struts are arranged on the lower bracket (1); a plurality of dovetail blocks are respectively arranged on two opposite side surfaces of the lower bracket (1), and dovetail grooves are formed between every two adjacent dovetail blocks.

2. The modular lower bracket structure according to claim 1, wherein: the first dovetail block (14) and the first dovetail groove (15) on one side surface of the lower bracket (1) are matched with the second dovetail groove (17) and the second dovetail block (16) on the other side surface of the other lower bracket (1).

3. The modular lower rack structure of claim 1, wherein: a plurality of limiting ribs (112) are arranged on the table top of the supporting table (111) along the circumferential direction.

4. The modular lower bracket structure according to claim 1, wherein: a plurality of rib plates (18) are arranged between the lower supporting grooves (11) of the lower bracket (1) and between the lower supporting grooves (11) and the dovetail blocks.

5. The modular lower bracket structure according to claim 1, wherein: the lower bracket (1) is a square bracket body; the lower support comprises a plurality of lower side columns (12) which vertically extend upwards from the edge part of the lower support (1) and a plurality of lower middle columns (13) which vertically extend upwards from the middle part of the lower support (1); the lower support is provided with a slot or a jack, or the lower support is provided with a plug.

6. A module support assembly, its characterized in that: the die set comprises a plurality of die set lower bracket structures and a plurality of die set upper bracket structures according to claim 1, wherein each die set upper bracket structure comprises a plurality of upper brackets (2) which are arranged side by side, the plurality of lower brackets (1) are arranged side by side and are inserted and connected through tenon-and-mortise structures, the plurality of upper brackets (2) are arranged side by side, and the lower brackets (1) and the corresponding upper brackets (2) are inserted and matched with the upper pillars through the lower pillars and are fixed through fasteners; a plurality of upper pressing grooves (21) are formed in the upper support (2), a connecting bridge (24) is arranged between every two adjacent upper pressing grooves (21), and a blocking piece (25) and a clamping hook (26) are arranged on the connecting bridge (24); the upper bracket (2) is provided with a plurality of upper struts.

7. The module carrier assembly of claim 6, wherein: the two sides of the connecting bridge (24) are symmetrically provided with a baffle plate (25) and a clamping hook (26).

8. The module carrier assembly of claim 6, wherein: a plurality of limiting grooves (27) are arranged on the top surface of the upper bracket (2) and between the two rows of upper pressing grooves (21).

9. The module carrier assembly of claim 6, wherein: the upper bracket (2) is a square bracket body; the upper support columns comprise a plurality of upper side columns (22) which vertically extend downwards from the edge part of the upper support (2) and a plurality of upper middle columns (23) which vertically extend downwards from the middle part of the upper support (2); the upper support is provided with a plug connector, or the upper support is provided with a slot or a jack.