CN217845514U

CN217845514U - Point-pressing type airtight testing limiting tool for upper cover of battery case

Info

Publication number: CN217845514U
Application number: CN202221748884.5U
Authority: CN
Inventors: 林永善; 周韬
Original assignee: Ningde Kangben Technology Co ltd
Current assignee: Ningde Kangben Technology Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-11-18
Anticipated expiration: 2032-07-06

Abstract

The utility model relates to a spacing frock of airtight test of battery case upper cover point pressure formula. The novel gas-filling device comprises a frame, wherein a plurality of plugs used for plugging edge holes are arranged at the bottom of the frame, the plugs are correspondingly arranged along the edge holes of a battery case upper cover, a plurality of pressure heads are arranged at the bottom of the frame, the pressure heads are distributed in the middle of a space surrounded by the plugs, and the pressure heads are buckled and pressed on the upper surface of the battery case upper cover to prevent the stress concentration of the battery case upper cover in the gas filling process. The utility model is used for solve the unable problem of measuring of battery case upper cover edge gas leakage.

Description

Battery case upper cover point-pressing type airtight test limiting tool

Technical Field

The utility model relates to an airtight check out test set field is a spacing frock of airtight test of battery case upper cover point pressure formula very much.

Background

New energy vehicles are developing more and more rapidly, domestic new energy vehicles have sealing requirements on battery shells, and if products are detected inaccurately and flow out, the whole battery pack is affected. A plurality of holes are formed in the flange edge of the upper cover of the battery case, and when the air tightness is detected, the holes need to be plugged. At present, the upper cover air tightness test pressure frame of the battery shell adopts surface pressure, and the air leakage of the flange edge of a product can not be measured sometimes due to the large contact area of the surface pressure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: the defects are overcome, and the point-pressing type airtight test limiting tool for the upper cover of the battery shell is used for solving the problem that the edge air leakage of the upper cover of the battery shell cannot be measured.

The utility model discloses a following technical scheme realizes: the utility model provides a spacing frock of airtight test of battery case upper cover point pressure formula which characterized in that: the novel gas-filling device comprises a frame, wherein a plurality of plugs used for plugging edge holes are arranged at the bottom of the frame, the plugs are correspondingly arranged along the edge holes of a battery case upper cover, a plurality of pressure heads are arranged at the bottom of the frame, the pressure heads are distributed in the middle of a space surrounded by the plugs, and the pressure heads are buckled and pressed on the upper surface of the battery case upper cover to prevent the stress concentration of the battery case upper cover in the gas filling process.

Furthermore, the frame has a first installation pole that is used for installing the end cap, the bottom of first installation pole is equipped with the first slide rail of downward opening, swing joint has a slip nut in the first slide rail, the end cap is cylindrically to the end cap is through wearing to establish screw and the slip nut screw-thread fastening that corresponds in its middle part.

Further, the frame has a second installation pole that is used for installing the pressure head, the bottom of second installation pole is equipped with downward open-ended second slide rail, swing joint has slip nut in the second slide rail, the pressure head includes pressure head seat, adjusts pole and pressure head portion, pressure head seat passes through screw and slip nut screw-thread fastening, the middle part of pressure head seat is equipped with the screw hole, adjust the pole and the screw hole threaded connection of pressure head seat and downwardly extending, the pressure head portion is cylindrical and with the fixed setting of lower extreme of adjusting the pole.

Furthermore, the adjusting rod is further connected with a limiting nut in a threaded manner, and the limiting nut abuts against the lower end of the pressing head seat to limit.

Compare prior art, the beneficial effects of the utility model are that:

the utility model discloses set up a plurality of end caps in the bottom of frame, the single-point compresses tightly the hole of product, and simulation assembly locking process, it is little with the area of contact of product, can solve the problem that battery case upper cover edge gas leakage can't be measured, still is equipped with the pressure head on the frame moreover, can avoid the battery case upper cover to aerify process deformation too big, product stress concentration and fracture.

Drawings

FIG. 1 is a schematic view of the usage state of the present invention;

FIG. 2 is a schematic structural view of a battery top cover;

FIG. 3 is a schematic view of the structure state of the present invention;

fig. 4 is a schematic structural view of the plug of the present invention;

fig. 5 is a schematic view of the installation of the plug of the present invention;

fig. 6 is a schematic structural view of the middle pressure head of the present invention;

fig. 7 is a first schematic view of the installation of the middle pressure head of the present invention;

fig. 8 is a second schematic view of the installation of the middle pressure head of the present invention.

Description of reference numerals: 1-frame, 11-first mounting rod, 111-first sliding rail, 12-second mounting rod, 112-second sliding rail, 2-plug, 3-pressure head, 31-pressure head seat, 311-threaded hole, 32-adjusting rod, 33-pressure head, 34-limit nut, 4-sliding nut, a-battery case upper cover and a 1-edge hole.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings:

the embodiment relates to a point-pressing type airtight test limiting tool for an upper cover of a battery case, which is used for plugging a pore passage and compressing a product to prevent cracking during airtight detection of the upper cover of the battery case, and specifically comprises a frame 1, wherein the bottom of the frame 1 is provided with a plurality of plugs 2 used for plugging edge holes a1, the plugs 2 are correspondingly arranged along the edge holes a1 of the upper cover a of the battery case, the bottom of the frame 1 is provided with a plurality of pressure heads 3, the pressure heads 3 are distributed in the middle of a space surrounded by the plugs 2, and the pressure heads 3 are buckled and pressed on the upper surface of the upper cover a of the battery case to prevent stress concentration of the upper cover a of the battery case in an inflation process.

As shown in fig. 1, through setting up a plurality of end caps 2 in the bottom of frame 1, the single-point compresses tightly the hole of product, and simulation assembly locking process, it is little with the area of contact of product, can solve the problem that battery case upper cover edge gas leakage can't be measured, still is equipped with the pressure head on frame 1 in addition, can avoid the battery case upper cover to aerify the process deformation too big, product stress concentration and fracture.

Preferably, as shown in fig. 1 to 5, the frame 1 has a first mounting rod 11 for mounting the plugs 2, a first slide rail 111 that opens downwards is provided at the bottom of the first mounting rod 11, a sliding nut 4 is movably connected in the first slide rail 111, the plugs 2 are cylindrical, and the plugs 2 are screwed with the corresponding sliding nuts 4 by screws that pass through the middle of the plugs. Because the first slide rail 111 is provided with a slide rail, the sliding nut 4 can be moved and adjusted on the slide rail, and the plug and the sliding nut 4 are fastened by a screw, so that the assembly position is convenient to adjust.

Preferably, as shown in fig. 1-3 and 6-8, the frame 1 has a second mounting rod 12 for mounting the press head 3, a second slide rail 112 with a downward opening is disposed at the bottom of the second mounting rod 12, a slide nut 4 is movably connected in the second slide rail 112, the press head 3 includes a press head seat 31, an adjusting rod 32 and a press head 33, the press head seat 31 is screwed with the slide nut 4 by a screw, a threaded hole 311 is disposed in the middle of the press head seat 31, the adjusting rod 32 is screwed with the threaded hole of the press head seat 31 and extends downward, and the press head 33 is cylindrical and is fixedly disposed at the lower end of the adjusting rod 32. The second slide rail is also provided with a slide rail, the position of the pressure head can be freely adjusted by matching with the slide nut 4, and the adjusting rod 32 of the pressure head is in threaded connection with the pressure head seat 31, so that the height position can be adjusted, and the debugging is convenient.

As a further improvement, as shown in fig. 6 to 8, a limit nut 34 is further connected to the adjusting rod 32 by a screw thread, and the limit screw thread 34 abuts against the lower end of the head base 31 to form a limit. Be equipped with stop nut, conveniently adjust the pole and carry out spacingly, the mounted position is accurate.

While the invention has been shown and described with respect to particular embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the invention. It is understood, therefore, that the invention is not to be limited, except as by the appended claims and their equivalents.

Claims

1. The utility model provides a spacing frock of airtight test of battery case upper cover point pressure formula which characterized in that: the novel gas filling device comprises a frame (1), wherein a plurality of plugs (2) used for plugging each edge hole (a 1) are arranged at the bottom of the frame (1), the plugs (2) are correspondingly arranged along the edge holes (a 1) of an upper cover (a) of a battery case, a plurality of pressure heads (3) are arranged at the bottom of the frame (1), the pressure heads (3) are distributed in the middle of a space surrounded by the plugs (2), and each pressure head (3) is buckled and pressed on the upper surface of the upper cover (a) of the battery case to prevent the stress concentration of the upper cover (a) of the battery case in the gas filling process.

2. The point-pressing type airtight testing limiting tool for the upper cover of the battery shell according to claim 1, wherein the point-pressing type airtight testing limiting tool comprises: the frame (1) is provided with a first mounting rod (11) for mounting the plug (2), the bottom of the first mounting rod (11) is provided with a first slide rail (111) with a downward opening, a sliding nut (4) is movably connected in the first slide rail (111), the plug (2) is cylindrical, and the plug (2) is in threaded fastening with the corresponding sliding nut (4) through a screw penetrating through the middle of the plug (2).

3. The point-pressing type airtight testing limiting tool for the upper cover of the battery shell according to claim 1, wherein the point-pressing type airtight testing limiting tool comprises: frame (1) has second installation pole (12) that are used for installing pressure head (3), the bottom of second installation pole (12) is equipped with downwardly opening's second slide rail (112), swing joint has slip nut (4) in second slide rail (112), pressure head (3) are including pressure head seat (31), regulation pole (32) and pressure head portion (33), pressure head seat (31) are through screw and slip nut (4) screw-thread fastening, the middle part of pressure head seat (31) is equipped with screw hole (311), adjust the screw hole threaded connection and the downwardly extending of pole (32) and pressure head seat (31), pressure head portion (33) are cylindrically and with the fixed setting of lower extreme of adjusting pole (32).

4. The point-pressing type airtight testing limiting tool for the upper cover of the battery shell according to claim 3, wherein the point-pressing type airtight testing limiting tool comprises: the adjusting rod (32) is further in threaded connection with a limiting nut (34), and the limiting nut (34) abuts against the lower end of the press head seat (31) to form limiting.