CN210232052U

CN210232052U - Fool-proof structure of square battery module clamping tool

Info

Publication number: CN210232052U
Application number: CN201921037494.5U
Authority: CN
Inventors: Yucheng Yu; 余煜丞; Xin Wang; 王鑫
Original assignee: Evps Ningbo Energy Storage System Co ltd
Current assignee: Evps Ningbo Energy Storage System Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-04-03
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses a square battery module presss from both sides tight frock prevent slow-witted mechanism, including supporting component and a plurality of prevent slow-witted structure, supporting component includes tray bottom plate and electric core support piece, electric core support piece is equipped with including first electric core support piece and second electric core support piece, electric core support piece fixed connection is on the tray bottom plate, prevents that slow-witted structure all connects on supporting component, and each prevent that slow-witted structure is located between first electric core support piece and the second electric core support piece, and each prevents that the position of each electric core is corresponding in slow-witted structure and the battery module, prevent that slow-witted structure upper surface surpasss electric core support piece upper surface, the tip of preventing slow-witted structure is close to first support piece or second support piece. The utility model discloses a prevent slow-witted mechanism can fully prevent that personnel from turning over with the positive negative pole pendulum of electricity core, improve the product percent of pass and reduce the short circuit risk, improve production safety, and guarantee that electricity core inversion can accomplish as far as possible that electric core draws forth utmost point roughness unanimous, reduce the clearance between busbar and electricity core, improve the product percent of pass.

Description

Fool-proof structure of square battery module clamping tool

Technical Field

The embodiment of the utility model provides a battery module makes technical field, especially relates to a fool-proof structure of tight frock of square battery module clamp.

Background

Battery module is used for providing power for new energy automobile, chinese patent 201821378978.1 discloses a battery module with heating system, including the end plate, the curb plate, electric core and busbar, the end plate is located electric core's both ends of controlling, the curb plate is located electric core's front and back both ends, the busbar is located electric core top, in order to assemble battery module into a whole, need weld end plate and curb plate handing-over department, will weld busbar and electric core simultaneously, need put into corresponding tight frock of clamp with each electric core under the normal conditions, because the positive negative pole appearance difference of square electric core is less, it is very easy during manual operation to put the contrary, can lead to battery module to take place the short circuit. And even find after the later stage detects that electric core pendulum is turned over because end plate and curb plate have been welded and die, hardly dismantle and place electric core again.

Disclosure of Invention

An object of the embodiment of the utility model is to solve above-mentioned technical problem, provide a fool-proof structure of the tight frock of square battery module clamp, prevent that artifical maloperation is anti-reverse with electric core pendulum.

The embodiment of the utility model provides a square battery module presss from both sides fool-proofing mechanism of tight frock, including supporting component and a plurality of fool-proofing structure spare, supporting component includes tray bottom plate and electric core support piece, electric core support piece is equipped with including first electric core support piece and second electric core support piece, electric core support piece fixed connection is on the tray bottom plate, the fool-proofing structure spare is blocky, the fool-proofing structure spare is all connected on supporting component, and each the fool-proofing structure spare is located between first electric core support piece and the second electric core support piece, and each is prevented that the position of each electric core in fool-proofing structure spare and the battery module is corresponding, the fool-proofing structure spare upper surface surpasss electric core support piece upper surface, the tip of preventing the fool-proofing structure spare is close to first.

Further, the fool-proof structure of the square battery module clamping tool is provided, wherein: and a reference fixing bottom plate is arranged, the reference fixing bottom plate is fixedly connected to the tray bottom plate and is positioned between the two cell support pieces, and the fool-proof structural member is fixedly connected to the reference fixing bottom plate in a detachable mode.

Further, the fool-proof structure of the square battery module clamping tool is provided, wherein: the base fixing bottom plate is provided with a plurality of groups of positioning holes, the fool-proof structural member is provided with a fixing hole, and a screw rod is connected between the fixing hole of the fool-proof structural member and the positioning hole of the base fixing team.

The utility model discloses a substantive characteristics and the technological progress that is showing reflect: the utility model discloses a prevent slow-witted mechanism can fully prevent that personnel from turning over with the positive negative pole pendulum of electricity core, improve the product percent of pass and reduce the short circuit risk, improve production safety, and guarantee that electricity core inversion can accomplish as far as possible that electric core draws forth utmost point roughness unanimous, reduce the clearance between busbar and electricity core, improve the product percent of pass.

Drawings

FIG. 1 is a schematic structural view of a clamping tool for a square battery module;

FIG. 2 is a schematic view of a clamping tool for end plates and side plates of a square battery module;

FIG. 3 is a schematic view of a side panel clamp configuration;

FIG. 4 is a side view schematic of the side panel clamp;

FIG. 5 is a schematic view of a side panel clamp ram configuration;

FIG. 6 is a schematic view of the back of the side panel clamp ram;

FIG. 7 is a schematic structural view of another embodiment of a side panel clamp;

FIG. 8 is a schematic view of another embodiment of a side clamp middle pressure head configuration;

FIG. 9 is a schematic view of a bus bar clamp configuration;

FIG. 10 is a schematic view of a bottom configuration of a bus bar clamp;

FIG. 11 is a schematic view of a clamp block construction;

FIG. 12 is a schematic view of another embodiment of a bus bar clamp;

FIG. 13 is a schematic view of another embodiment of a clamping block of the bus bar clamp being coupled to a mounting plate;

FIG. 14 is a schematic view of the end plate movable clamp configuration;

FIG. 15 is a schematic view of the end plate and side plate clamping tool in use;

fig. 16 is a schematic view of a bus bar clamping tool.

Description of reference numerals: 1. a tray floor; 11. a cell support; 12. a reference fixing base plate; 13. a fool-proof structural member; 14. positioning seats; 15. a clamping part; 2. a side plate clamping assembly; 21. a pressure head; 211. a ram front plate; 2111. a boss portion; 2112. welding the opening; 2113. a notch; 212. a pressure head fixing plate; 2121. welding the opening; 2122. positioning points; 2123. a bending section; 213. a ram guide; 214. a spring; 22. a back plate; 23. a front plate; 24. pushing the plate; 25. an elbow clip; 251. an elbow clamp push rod; 26. a spring; 27. a guide bar; 3. an end plate reference block; 4. an end plate hold-down mechanism; 41. an end plate clamp plate; 42. pushing the plate; 43. a fixing plate; 44. a screw; 45. a turntable; 46. a guide bar; 47. a connecting rod; 48. a pressure sensor; 5. a bus bar clamp; 51. briquetting; 511. a briquetting body; 512. a guide bar; 513. a spring; 514. welding the hole; 515. a projection; 52. a cover plate; 53. an elbow clip; 54. positioning seats; 55. a clamping part; 56. a pressing block fixing plate; 6. a battery module is provided.

Detailed Description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience of describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and fig. 2, taking the direction of the drawing as an example, the square battery module clamping tool includes a support assembly, a side plate clamping assembly 2, an end plate pressing assembly, and a busbar clamping plate 5, where the support assembly includes a tray bottom plate 1, a cell support member 11, a reference fixing bottom plate 12, and a positioning seat 14, where the cell support member 11 includes a first cell support member and a second cell support member, and the cell support member 11, the reference fixing bottom plate 12, and the positioning seat 14 are fixedly connected to the tray bottom plate 1. First electric core support piece and second electric core support piece set up side by side, benchmark PMKD 12 is located between first electric core support piece and the second electric core support piece, the end plate compresses tightly the subassembly and includes end plate reference block 3 and end plate hold-down mechanism 4, end plate reference block 3 and/or end plate hold-down mechanism 4 are in order can dismantle mode fixed connection on benchmark PMKD 12, specifically, are equipped with the multirow locating hole on the benchmark PMKD 12, correspondingly, also are equipped with the fixed orifices on end plate reference block 3 and the end plate hold-down mechanism 4, and the locating hole on end plate reference block 3 and/or the end plate hold-down mechanism 4 and the benchmark PMKD 12 passes through screw rod fixed connection. The positions of the end plate reference block 3 and the end plate pressing mechanism 4 on the reference fixing bottom plate 12 can be adjusted according to the length of the cell module 6 in actual operation. The end plate pressing mechanism 4 is provided with a push plate 42 which can slide towards the end plate reference block 3. Curb plate clamping assembly 2 is equipped with two, and curb plate clamping assembly 2 is equal fixed connection on tray bottom plate 1, and two curb plate clamping assembly 2 set up relatively and are located two electric core support piece 11 front and back both sides respectively. Busbar pressing member 5 is located 1 top of tray bottom plate, just be equipped with positioning seat 54 on the busbar pressing member 5, and be equipped with joint portion 55 on the positioning seat 54, positioning seat 54 is equipped with four, and four positioning seats 54 are located the four corners department of apron 52 respectively, positioning seat 14 on the supporting component is corresponding with positioning seat 14 position on the busbar pressing member 15, also is equipped with joint portion 15 on the positioning seat 14, positioning seat 54 on the busbar pressing member 5 is pegged graft mutually with positioning seat 14 on the supporting component, just joint portion 55 on the busbar pressing member 5 with 15 looks joints of joint portion on the positioning seat 14 for busbar pressing member 5 is connected with the tray bottom plate 1 with detachable mode.

Example 1

As shown in fig. 2, a plurality of fool-proof structural members 13 are additionally provided, the fool-proof structural members 13 are block-shaped, the width of each fool-proof structural member 13 is matched with the width of a single cell in the battery module, the upper surface of each fool-proof structural member 13 is higher than the upper surface of the cell support member 11, the fool-proof structural members 13 are detachably connected to the reference fixing bottom plate 12, and the fool-proof structural members 13 are arranged in parallel and are located between the first cell support member and the second cell support member. The end of the foolproof structure 13 is adjacent to the first support or the second support. Specifically, the fool-proof structural member 13 is also provided with a fixing hole, and the fool-proof structural member 13 is fixedly connected with the reference fixing bottom plate 12 through a screw. As shown in fig. 2 and 15, the fool-proof structure works as follows: when the square battery module clamping tool is used, the battery cell is inverted and then is arranged on the first battery cell supporting piece and the second battery cell supporting piece, the pole columns of the battery cell are respectively supported at the edge parts of the upper surfaces of the first battery cell supporting piece and the second battery cell supporting piece, the pole columns of the square battery cell have the characteristics of short positive pole and long negative pole, a fool-proof structure 13 corresponds to the lower part of each battery cell, the position of the fool-proof structure 13 on the reference fixing bottom plate 12 can be adjusted according to the actual condition that the battery cells are arranged in series and parallel, the end part 13 of the fool-proof structure is close to the battery cell supporting piece where the positive pole end of the battery cell is located, the battery cell can be supported on the fool-proof structure 13, the difference between the positive pole column and the negative pole column of the battery cell is filled, therefore, when the battery cell is placed, rotating 180 degrees and placing.

Example 2

As shown in fig. 1 to 6, the side plate clamping assembly 2 includes a pressing head 21, a rear plate 22, a front plate 23, a pushing plate 24, an elbow clip 25, a spring 26 and a guide rod 27, the rear plate 22 is fixedly connected to the tray bottom plate 1, the front plate 23 is located at the front side of the rear plate 22, the front plate 23 is connected to the rear plate 22 through the guide rod 27, the guide rod 27 penetrates through the rear plate 22, and the spring 26 is sleeved on the periphery of the guide rod 27 and is limited between the rear end of the guide rod 27 and the rear plate 22. The elbow presss from both sides 25 and connects on back plate 22, and elbow presss from both sides push rod 251 and is located between front bezel 22 and the back plate, pressure head 21 and push pedal 24 all are equipped with two, and two pressure heads 21 are connected with the left and right sides both ends of front bezel 23 through two push pedals 24 respectively. When the toggle clamp 25 is pulled until the toggle clamp 5 is locked in place, the toggle clamp push rod 251 moves forward to abut against the front plate 22 and push the front plate 22 to move forward, and drives the guide rod 27 to move forward to press the spring 26. The pressing heads 21 of the two oppositely disposed side plate clamping assemblies 2 can be simultaneously pressed toward the battery module side plates. When the toggle clamp is unlocked and moved to the initial position, the guide rod 27 is reset by the spring 26. Preferably, there are two guide rods 27, and the guide rods 27 are located at the left and right sides of the elbow clip 25.

Specifically, as shown in fig. 5 and 6, the pressure head 21 includes a pressure head front plate 211, a pressure head fixing plate 212, four pressure head guide rods 213, and a spring 214, wherein the pressure head front plate 211 is located on the front side of the pressure head fixing plate 212, the pressure head front plate 211 and the pressure head fixing plate 212 are connected through the pressure head guide rods 213, the number of the pressure head guide rods 213 is four, the four pressure head guide rods 213 are respectively connected to four corners of the pressure head front plate 211 and the pressure head fixing plate 212, and the pressure head guide rods 213 are in non-fastening connection with the pressure head front plate 213. The spring 214 is sleeved on the outer periphery of the ram guide rod 213 and is limited between the ram front plate 211 and the ram fixing plate 212. The front pressure head plate 211 is provided with a welding port 2112, the pressure head fixing plate 212 is provided with a welding port 2121, and the rear end of the pressure head fixing plate 212 of the laser welding head penetrates through the welding ports on the pressure head fixing plate 212 and the front pressure head plate 211, so that the end plate and the side plate of the battery module are welded.

Preferably, as shown in fig. 5, the welding opening 2121 is elongated, a protrusion 2111 is formed on the front side surface of the front plate 211 of the indenter and at the edge of the welding opening 2112 of the front plate 211 of the indenter, so as to facilitate pressing the side plates, and a notch 2113 is further formed at the edge of the welding opening 2112 of the front plate 211 of the indenter, so as to facilitate observing the welding condition. The back 2122 of the fixing plate 212 and the position close to the welding opening 2121 are provided with positioning points 2122, and the positioning points 2122 may be black nuts, which facilitates image recognition of a welding head, so as to find the welding opening 2121 and facilitate welding. One side edge of the pressure head fixing plate 212 is formed with a bending part 2123, and the surface of the bending part 2123 is fixedly connected with the push plate 24. The ram guide 213 is a right-angle countersunk head screw.

Example 3

As shown in fig. 7 and 8, the present embodiment is different from embodiment 2 in that the notch 2113 is not provided in the present embodiment. In addition, since the indenter 21 is located on both sides of the sideplate clamping assembly 2, the outermost edge thereof is forced inward, so that the convex portion 2111 of the indenter 21 on the left side protrudes from the convex portion 211 on the right side, and the convex portion 2111 of the indenter 21 on the right side protrudes from the convex portion 211 on the left side.

Example 4

As shown in fig. 9 to 11, the busbar clamping member 5 includes a pressing block 51, a cover plate 52, an elbow clamp 53, a positioning seat 54, a clamping portion 55, and a pressing block fixing plate 56, an opening is provided on the cover plate 52, the pressing block fixing plate 56 is fixedly connected to the cover plate 52 and the pressing block fixing plate 56 is located at the opening, the pressing block 51 is provided with a plurality of pressing blocks 51, the pressing blocks 51 are arranged side by side, so that the pressing blocks correspond to the busbar position of the battery module, and a welding hole 514 for the welding head to pass through is provided on the pressing block 51. The cover plate 52 is provided with positioning seats 54, the positioning seats 54 correspond to the positioning seats 14 on the tray bottom plate 1 in position, the positioning seats 54 are respectively provided with an elbow clamp 53, and each elbow clamp 53 is connected with a clamping part 55.

The pressing block 51 comprises a pressing block body 511, a guide rod 512 and a spring 513, the cross section of the pressing block body 511 is T-shaped, the left end and the right end of the pressing block body 511 are supported on the pressing block fixing plate 56, the lower end of the pressing block body 511 protrudes out of the lower surface of the pressing block fixing plate 56, the welding hole 514 penetrates through the pressing block body 511, and the guide rod 512 penetrates through the pressing block body 511. The press block fixing plate 56 is provided with a fixing hole, and the lower end of the guide rod 512 is connected in the fixing hole on the press block fixing plate 56. The spring 513 is sleeved on the periphery of the guide rod 512 and the spring 513 is limited between the upper end of the guide rod 512 and the upper surface of the pressing block body 511. Preferably, a protrusion 515 is formed at a lower edge of the compact body 511 to extend downward. The guide 512 is preferably a right angle countersunk head screw. Two guide rods 512 are provided, and the two guide rods 512 are located at the left and right sides of the welding hole 514.

Example 5

As shown in fig. 12 and 13, the present embodiment is different from embodiment 4 in that the pressing block body 511 is a block structure, the pressing block body 511 is located below the pressing block fixing plate 56, the guide rod 512 penetrates through the fixing hole of the pressing block fixing plate 56, and the spring is sleeved on the periphery of the guide rod 512 and is limited between the bottom surface of the pressing block fixing plate 56 and the top surface of the pressing block body 511.

Example 6

As shown in fig. 1 and 14, the end plate pressing assembly includes an end plate reference block 3 and an end plate pressing mechanism 4, where the end plate reference block 3 and the end plate pressing mechanism 4 are respectively located at left and right ends of the cell support member 11. End plate reference block 3 is the right angle form of buckling, including horizontal plate form portion and perpendicular platelike portion, is equipped with the fixed orifices in the horizontal plate form portion, and the fixed orifices in the horizontal plate form portion and the locating hole on the end plate reference block 3 pass through screw rod fixed connection. The end plate pressing mechanism 4 comprises an end plate clamping plate 41, a push plate 42, a fixing plate 43, a screw rod 44, a turntable 45 and a connecting rod 47, wherein the fixing plate 43 comprises a horizontal plate-shaped part and a vertical plate-shaped part, the horizontal plate-shaped part is connected to the bottom of the vertical plate-shaped part, a reinforcing part is connected between the horizontal plate-shaped part and the vertical plate-shaped part, a fixing hole is formed in the horizontal plate-shaped part, the fixing hole in the horizontal plate-shaped part is fixedly connected with a positioning hole in the end plate reference block 3 through a screw rod, the push plate 42 is positioned on the front side of the fixing plate 43, the end plate clamping plate 41 is positioned on the front side of the push plate 42, the push plate 42 is connected with the fixing plate 43 through the screw rod 44, a guide rod 46 is. Specifically, the links 47 are connected to the four corners of the end plate chucking plate 41 and the push plate 42. Preferably, a pressure sensor 48 is arranged between the end plate clamping plate 41 and the push plate 42, and a rotating disc 45 is connected to the end of the screw rod 44. The push plate 42 is moved forward by rotating the dial 45 manually to rotate the lead screw 44, so that the end plate clamp plate 41 is moved forward. Of course, the turntable 45 can be replaced by a motor, and the end plate 41 can also move forward.

The use method of the square battery module clamping tool is as follows: as shown in fig. 15, battery module 56 is inverted, positive and negative poles of the battery cell of battery module 6 are located at edges of the first and second cell support members, two side plates are disposed on the front and rear sides of battery module 6, two end plates are disposed on the left and right ends of battery module 6, end plate clamping plates 41 are moved toward battery module 6 by rotating rotary disk 45, battery module 6 is clamped between end plate reference block 3 and end plate pressing mechanism 4, operator can know the current pressure through pressure sensor 48, and battery module 6 is prevented from being damaged due to excessive pressure. Then, by pulling the toggle clamp, the indenters 21 of the two side plate clamping assemblies 2 are moved toward the battery module 6, and the battery module 6 is clamped between the two side plate clamping assemblies 2. Pressure head front bezel 21 and pressure head fixed plate 23 are connected through locating lever 213, and are non-fastening connection state between locating lever 213 and the pressure head front bezel 21, and the locating lever 213 periphery is equipped with spring 214, can realize the free deflection of pressure head 21 small-angle, adapts to the crimping environment between end plate and the curb plate, even the terminal side board roughness does not reach ideal state, also can realize automatic adjustment, satisfies the requirement that is less than 0.15mm clearance. The weld head may weld the end plates and side plates through the weld ports 2112 of the indenter front plate 211 and the weld ports 2121 of the indenter fixing plate 212 on the indenter 21.

As shown in fig. 16, treat that end plate and curb plate welding accomplish the back, overturn battery module 6 for electric core utmost point post is up, and cover the busbar on electric core utmost point post, when using busbar clamp 5, peg graft positioning seat 54 and the positioning seat 14 on the tray bottom plate 1 that presss from both sides tight 5 of busbar mutually, and peg graft positioning seat 54 and the positioning seat 14 on the tray bottom plate 1 that presss from both sides tight 5 of busbar mutually, then pull elbow clamp 53 and make the joint portion 55 on the positioning seat 54 and the joint portion 15 locking joint on the positioning seat 14. And the welding head welds the bus bar and the battery core through the welding hole 514 on the press block 51. The periphery of the guide rod 512 of the welding head is provided with a spring 513, so that each pressing block 51 is independently suspended on the pressing block fixing plate 56, the compression joint environment of the bus bar is adapted, even if the surface flatness of the bus bar does not reach an ideal state, automatic adjustment can be realized, and the requirement of a gap smaller than 0.15mm is met.

As can be seen from the above description, the utility model can satisfy the different quantities of single cells and the different series-parallel combination modes, and is compatible with products of various specifications; the pressure head of the side plate clamping assembly can deflect freely at a small angle, so that the pressure head adapts to the crimping environment between the end plate and the side plate, even if the flatness of the end plate or the side plate does not reach an ideal state, automatic adjustment can be realized, the requirement of a gap smaller than 0.15mm is met, and welding is facilitated; each pressing block of the busbar clamping assembly is independently suspended on the pressing block fixing plate, so that the pressing connection work of automatically adapting to the electric cores with different heights can be realized, and the welding is convenient; prevent slow-witted mechanism can fully prevent that personnel from putting the positive negative pole of end plate or electric core anti-rotation, improve the product percent of pass and reduce the short circuit risk, improve production safety, and guarantee that electric core inversion can accomplish electric core extraction utmost point roughness unanimous as far as possible, reduce the clearance between busbar and electric core, improve the product percent of pass.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a fool-proof structure of clamping frock of square battery module which characterized in that: including supporting component and a plurality of prevent slow-witted structure, supporting component includes tray bottom plate and electric core support piece, electric core support piece is equipped with including first electric core support piece and second electric core support piece, electric core support piece fixed connection is on the tray bottom plate, prevent that slow-witted structure is cubic, prevent that slow-witted structure all connects on supporting component, and each prevent that slow-witted structure is located between first electric core support piece and the second electric core support piece, each prevent that slow-witted structure is corresponding with the position of each electric core in the battery module, prevent that slow-witted structure upper surface surpasss electric core support piece upper surface, the tip of preventing slow-witted structure is close to first support piece or second support piece.

2. The fool-proof structure of the square battery module clamping tool according to claim 1, characterized in that: and a reference fixing bottom plate is arranged, the reference fixing bottom plate is fixedly connected to the tray bottom plate and is positioned between the two cell support pieces, and the fool-proof structural member is fixedly connected to the reference fixing bottom plate in a detachable mode.

3. The fool-proof structure of the square battery module clamping tool according to claim 2, characterized in that: the base fixing bottom plate is provided with a plurality of groups of positioning holes, the fool-proof structural member is provided with a fixing hole, and a screw rod is connected between the fixing hole of the fool-proof structural member and the positioning hole of the base fixing team.