CN212303739U

CN212303739U - Equal-height distance-limiting heat seal mechanism for cell end face tab pressing machine

Info

Publication number: CN212303739U
Application number: CN202021226664.7U
Authority: CN
Inventors: 许炎; 童焰; 陈志勇
Original assignee: Guangdong Mic Power New Energy Co Ltd
Current assignee: Guangdong Mic Power New Energy Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-01-05
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to a high limit distance heat seal mechanism such as be used for electric core terminal surface utmost point ear pressfitting machine for it is fixed with steel sheet and battery case hot pressing, including the frame, with frame fixed connection's lower heating pipe, slide rail set spare and through slide rail set spare and frame swing joint's last heating pipe, go up the heating pipe and be connected with slide rail set spare through one or more heat-insulating post, lower heating pipe also is connected with the frame through one or more heat-insulating post. The utility model provides a high limit distance heat seal mechanism such as be used for electric core terminal surface utmost point ear pressfitting machine utilizes the terminal surface to carry out hot pressing for annular heating pipe to steel sheet and battery case and fixes to through the heating pipe that separates the heat insulating column and completely cut off high temperature, avoid the heating pipe to damage its surrounding parts, guarantee the stability of pressfitting machine equipment.

Description

Equal-height distance-limiting heat seal mechanism for cell end face tab pressing machine

Technical Field

The utility model relates to a battery production field especially relates to a high limit distance heat seal mechanism such as be used for electric core terminal surface utmost point ear pressfitting machine.

Background

With the increasing popularity of electronic products, people have more and more demand for batteries. With the development of battery technology, batteries different from the conventional structure have been developed. For example, patent publication No. CN111029487A discloses a high energy density battery, which replaces the conventional tab connection exposed outside the battery with steel sheets on both end faces. Specifically, the upper end face and the lower end face of the battery are provided with circular hollow areas, and the steel sheet is partially exposed in the hollow areas. As a newly developed novel structure battery, there is no production equipment for the battery structure in the market at present, and particularly, there is no corresponding efficient and stable pressing equipment in the pressing operation of the battery shell and the steel sheet, so that improvement is urgently needed.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an equal altitude limit apart from heat seal mechanism for electric core terminal surface utmost point ear pressfitting machine utilizes the terminal surface to carry out hot pressing fixedly for annular heating pipe to steel sheet and battery case, and hot pressing operation is stable high-efficient, and the pressfitting is effectual to through the heating pipe of isolating high temperature of heat insulating post, avoid the heating pipe to damage its surrounding parts, effectively guarantee the stability of pressfitting machine equipment.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides an equal altitude limit apart from heat seal mechanism for electric core terminal surface utmost point ear pressfitting machine for it is fixed with steel sheet and battery case hot pressing, includes the frame, with frame fixed connection's lower heating pipe, slide rail set spare and through slide rail set spare and frame swing joint's upper heating pipe, upper heating pipe is connected with slide rail set spare through one or more heat-insulating post, lower heating pipe is also connected with the frame through one or more heat-insulating post.

Preferably, the lower end surface of the upper heating pipe is in contact with the battery shell for heating and applies downward force for extrusion, the upper end surface of the lower heating pipe is in contact with the steel sheet for heating and applies upward force for extrusion so as to fix the stacked battery shell and the steel sheet in a hot-pressing mode, the lower end surface of the upper heating pipe is a circular ring, and the upper end surface of the lower heating pipe is circular.

Preferably, the slide rail assembly comprises a vertical slide rail, a vertical slide block, a transverse plate and a cylinder, wherein the slide block is sleeved on the vertical slide rail in a sliding mode, the transverse plate is fixed on the vertical slide block, the cylinder pushes the transverse plate to move up and down, and the cylinder is fixed on the fixing plate.

Preferably, still be connected with the stopper on the diaphragm, the stopper includes the spacing slide bar of being connected with the diaphragm and fixes the micrometer at spacing slide bar end, and spacing slide bar runs through the fixed plate and can slide for the fixed plate, and a micrometer tip is contradicted on the fixed plate in order to realize the limiting displacement to the diaphragm.

Preferably, the heat insulation column is made of stainless steel, and one or more heat dissipation grooves are formed in the heat insulation column.

Preferably, the heat insulation column comprises a first connecting part, a heat dissipation part and a second connecting part, wherein the first connecting part is provided with threads, the second connecting part is also provided with threads, and the threads on the first connecting part and the threads on the second connecting part are opposite in direction; the heat dissipation groove is arranged at the heat dissipation part.

Preferably, the heat dissipation groove is of an axisymmetrical structure and comprises a first half-moon groove, a round hole and a second half-moon groove, and the first half-moon groove and the second half-moon groove are symmetrically distributed on two sides of the round hole; the radiating part is provided with a plurality of groups of radiating grooves which are arranged on the radiating part at equal intervals, the symmetrical shafts of the two adjacent groups of radiating grooves are mutually vertical, and the radiating part is cylindrical.

The utility model discloses compare in prior art's beneficial effect and be:

the utility model discloses a high limit distance heat seal mechanism such as be used for electric core terminal surface utmost point ear pressfitting machine for it is fixed with steel sheet and battery case hot pressing, it is fixed to utilize the terminal surface to carry out hot pressing for annular heating pipe to steel sheet and battery case. Meanwhile, the thickness of the steel sheet and the battery shell combination body formed by hot pressing is controlled within the design precision through the limiting action of the micrometer, and the quality of a battery product is guaranteed. In addition, the heat insulation column is used for isolating the high-temperature heating pipe, so that the heating pipe is prevented from damaging surrounding parts. The heat insulation column is made of stainless steel, and the firmness of connection between the heating pipe and surrounding parts is effectively guaranteed by the aid of excellent deformation resistance of the stainless steel. In order to further reduce the heat transfer of the heating pipe to the surrounding parts, the surface of the heat insulation column is hollowed, a plurality of groups of radiating grooves are dug, and the actual radiating area of the surface of the heat insulation column is increased by utilizing the additionally arranged radiating grooves, so that the heat transferred to the surrounding parts of the heating pipe is reduced, and the surrounding parts of the heating pipe are prevented from being affected by the high-temperature heating pipe.

Drawings

Fig. 1 is a structural diagram of a high-limit-distance heat sealing mechanism in an embodiment of the present invention.

Fig. 2 is a structural diagram of a heat insulation column according to an embodiment of the present invention.

Fig. 3 is a structural diagram of a heat insulation column according to an embodiment of the present invention.

Fig. 4 is a diagram illustrating a connection relationship between the heat insulating column and the surrounding members according to an embodiment of the present invention.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to specific embodiments and drawings.

Referring to fig. 1-4, an embodiment of the present invention includes:

the utility model provides an equal altitude limit apart from heat seal mechanism for electric core terminal surface utmost point ear pressfitting machine for it is fixed with battery case hot pressing, includes frame, lower heating pipe 2, the slide rail set spare with frame 1 fixed connection and through slide rail set spare and frame 1 swing joint's upper heating pipe 3.

The lower end face of the upper heating pipe 3 is in contact with the battery shell for heating and applies force downwards for extrusion, the upper end face of the lower heating pipe 2 is in contact with the steel sheet for heating and applies force upwards for extrusion, and therefore the stacked battery shell and the steel sheet are fixed in a hot-pressing mode, the lower end face of the upper heating pipe 3 is a circular ring, and the upper end face of the lower heating pipe 2 is circular.

The slide rail assembly comprises a vertical slide rail 10, a vertical slide block 11 sliding on the vertical slide rail 10 in a sliding manner, a transverse plate 12 fixed on the vertical slide block 11, and a cylinder 13 pushing the transverse plate 12 to move up and down, wherein the cylinder 13 is fixed on a fixing plate 14.

The transverse plate 12 is further connected with a limiting device, the limiting device comprises a limiting slide rod 15 connected with the transverse plate 12 and a micrometer 16 fixed at the tail end of the limiting slide rod 15, the limiting slide rod 15 penetrates through the fixing plate 14 and can slide relative to the fixing plate 14, and one end of the micrometer 16 abuts against the fixing plate 14 to limit the transverse plate 12.

The upper heating pipe 3 is connected with the sliding rail assembly through one or more heat insulation columns 20, the lower heating pipe 2 is also connected with the rack 1 through one or more heat insulation columns 20, the heat insulation columns 20 are made of stainless steel, and one or more heat dissipation grooves are formed in the heat insulation columns 20.

The heat insulation column 20 comprises a first connecting part 21, a heat dissipation part 22 and a second connecting part 23, wherein the first connecting part 21 is provided with threads, the second connecting part 23 is also provided with threads, and the threads on the first connecting part 21 and the threads on the second connecting part 23 are opposite in direction; the heat dissipation grooves are provided in the heat dissipation portion 22.

The radiating grooves are of an axisymmetrical structure and comprise a first half-moon groove 24, a round hole 25 and a second half-moon groove 26, and the first half-moon groove 24 and the second half-moon groove 26 are symmetrically distributed on two sides of the round hole 25; the last multiunit radiating groove that distributes of radiating part 22, multiunit radiating groove equidistance are arranged on radiating part 22, and the symmetry axis mutually perpendicular of adjacent two sets of radiating grooves, radiating part 22 are cylindricly.

The operating principle is as follows, the upper and lower heating pipes are electrified to heat up, stack battery case and steel sheet and place between the upper and lower heating pipes, the circular windowing of fretwork has been dug through other processing equipment in battery case central zone this moment, its structure is like the structure that patent document publication number CN111029487A states, the cylinder promotes the heating pipe and descends, the ring and the battery case contact of heating pipe terminal surface, the internal diameter of the ring of heating pipe terminal surface is greater than the diameter of the circular windowing of battery case, the external diameter of the ring of heating pipe terminal surface is less than the diameter of steel sheet, in-process that the heating pipe pushed down, the micrometer also descends thereupon, when the micrometer was inconsistent with the fixed plate, the heating pipe stopped to push down, the distance accessible of heating pipe and lower heating pipe realizes accurate control. After the hot pressing is finished, the cylinder returns, the upper heating pipe moves upwards, the combination of the steel sheet and the battery shell after the hot pressing is finished is taken down, and then the hot pressing operation of the next group of steel sheets and the battery shell can be carried out.

When the heating pipe works, the temperature of the heating pipe reaches 170-180 ℃, external strong heat transfer is generated at high temperature, and surrounding parts are easily damaged by high heat. For avoiding the heating pipe to cause the damage to its surrounding parts, the utility model discloses add thermal-insulated post between heating pipe and its surrounding parts, connect heating pipe and its surrounding parts through thermal-insulated post, thermal-insulated post is made by the stainless steel, utilizes the poor characteristics of stainless steel heat conduction ability, realizes the thermal isolated effect of heating pipe, avoids the heating pipe high heat transfer to on the surrounding parts. Because the stainless steel still has outstanding resistance to deformation, can effectively guarantee the fastness of heating pipe and its surrounding parts connection. In order to further reduce the heat transfer of the heating pipe to the surrounding parts, the surface of the heat insulation column is hollowed, a plurality of groups of radiating grooves are dug, and the actual radiating area of the surface of the heat insulation column is increased by utilizing the additionally arranged radiating grooves, so that the heat transferred to the surrounding parts of the heating pipe is reduced, and the surrounding parts of the heating pipe are prevented from being affected by the high-temperature heating pipe. Tests show that the temperature of the heating pipe with the temperature as high as 170-180 ℃ is greatly reduced after being isolated by the heat-insulating column, the temperature of the surrounding parts is only 60 ℃ through actual measurement, and the heat-insulating pipe has very excellent heat-insulating capability.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high limit distance heat seal mechanism for pressing machine of electric core terminal surface utmost point ear, its characterized in that for with steel sheet and battery case hot pressing fixed, including frame, with frame (1) fixed connection's lower heating pipe (2), slide rail set spare and through slide rail set spare and frame (1) swing joint's last heating pipe (3), go up heating pipe (3) and be connected with slide rail set spare through one or more heat-insulating post (20), lower heating pipe (2) also are connected with frame (1) through one or more heat-insulating post (20).

2. The equal-height distance heat-sealing mechanism for the cell end face tab press-fitting machine according to claim 1, wherein the lower end face of the upper heating pipe (3) is in contact with the battery shell for heating and applies downward force for extrusion, the upper end face of the lower heating pipe (2) is in contact with the steel sheet for heating and applies upward force for extrusion so as to fix the stacked battery shell and the steel sheet in a hot-pressing manner, the lower end face of the upper heating pipe (3) is a circular ring, and the upper end face of the lower heating pipe (2) is a circular ring.

3. The equal-height distance heat-sealing mechanism for the battery cell end face tab press-fitting machine according to claim 1, wherein the slide rail assembly comprises a vertical slide rail (10), a vertical slide block (11) sliding on the vertical slide rail (10) in a sliding manner, a transverse plate (12) fixed on the vertical slide block (11), and a cylinder (13) pushing the transverse plate (12) to move up and down, and the cylinder (13) is fixed on the fixing plate (14).

4. The equal-height-limit heat-sealing mechanism for the battery cell end-face tab pressing machine is characterized in that a limiting device is further connected onto the transverse plate (12), the limiting device comprises a limiting slide rod (15) connected with the transverse plate (12) and a micrometer (16) fixed at the tail end of the limiting slide rod (15), the limiting slide rod (15) penetrates through the fixing plate (14) and can slide relative to the fixing plate (14), and one end of the micrometer (16) abuts against the fixing plate (14) to limit the transverse plate (12).

5. The equal-height-limit heat-sealing mechanism for the cell end-face tab pressing machine according to claim 1, wherein the heat-insulating column (20) is made of stainless steel, and one or more heat dissipation grooves are formed in the heat-insulating column (20).

6. The equal-height distance heat-sealing mechanism for the cell end face lug pressing machine according to claim 5, wherein the heat-insulating column (20) comprises a first connecting part (21), a heat dissipation part (22) and a second connecting part (23), the first connecting part (21) is provided with threads, the second connecting part (23) is also provided with threads, and the threads on the first connecting part (21) are opposite to the threads on the second connecting part (23); the heat dissipation groove is provided in the heat dissipation portion (22).

7. The equal-height distance heat-sealing mechanism for the cell end face tab pressing machine according to claim 6, wherein the heat dissipation groove is of an axisymmetric structure and comprises a first half-moon groove (24), a circular hole (25) and a second half-moon groove (26), and the first half-moon groove (24) and the second half-moon groove (26) are symmetrically distributed on two sides of the circular hole (25); the radiating part (22) is provided with a plurality of groups of radiating grooves which are arranged on the radiating part (22) at equal intervals, the symmetrical axes of the two adjacent groups of radiating grooves are mutually vertical, and the radiating part (22) is cylindrical.