CN213278161U

CN213278161U - Tool for pressurizing and measuring lithium ion battery module

Info

Publication number: CN213278161U
Application number: CN202022559217.XU
Authority: CN
Inventors: 胡新华; 赵航; 岳耀立; 曹俊义
Original assignee: Tianjin EV Energies Co Ltd
Current assignee: Tianjin EV Energies Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-05-25
Anticipated expiration: 2030-11-09

Abstract

The utility model relates to a tool for the pressurization measurement of a lithium ion battery module, which comprises an integral frame, an objective table and a pressure feedback mechanism, wherein the objective table is used for bearing the battery module; the pressure feedback mechanism is arranged above the objective table and comprises a pressing plate which is driven by a servo motor to vertically move, and a pressure sensor is arranged in the middle of the inside of the pressing plate. The servo motor is adopted to control the pressure plate to descend so as to pressurize the battery module, the pressure output control is accurate and stable, and the levelness of the pressure plate is good. The pressure sensor is arranged in the pressure plate, the position of the pressure sensor is the positive center of the pressure plate, and the current pressure value can be fed back in real time when the pressure sensor is pressed down.

Description

Tool for pressurizing and measuring lithium ion battery module

Technical Field

The utility model belongs to the technical field of the battery is made, specifically a be used for lithium ion battery module pressurization measuring frock.

Background

The shell material of battery module is industrial plastic, and its inside electric core has certain degree of bulging after charging, consequently, in the link of appearance size detection, need increase a pressurization measurement frock, and the battery enterprise of hairdo is because it is more to develop electric core variety, and the model specification is different, and the power battery demand strengthens increasingly. In lithium ion battery's production process, the quality detection of module is especially important, and especially the overall dimension of module detects, consequently, design and develop a precision height, it is convenient to use, and the module size that measures the accuracy detects the frock and is especially important to the production and the quality management and control utensil of module.

The current pressurization measurement frock adopts the weight to carry out the counter weight, because the counter weight inaccuracy of weight, and the focus after the weight is placed has the deviation, leads to pushing down back horizontal plane unevenness, and the measured value is inaccurate, and measuring error is great.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a be used for lithium ion battery module pressurization measuring frock to but realize the accurate adjustment of pressure value, the good purpose of clamp plate levelness.

For solving the above technical problem, the utility model discloses a technical scheme is: a tool for pressure measurement of a lithium ion battery module comprises an integral frame, an objective table and a pressure feedback mechanism, wherein the objective table is used for bearing the battery module; the pressure feedback mechanism is arranged above the objective table and comprises a pressing plate which is driven by a servo motor to vertically move, and a pressure sensor is arranged in the middle of the inside of the pressing plate.

Further, the objective table set up in the integral frame bottom, integral frame includes collateral branch fagging and first fixed plate, the objective table bilateral symmetry sets up collateral branch fagging, the top at two collateral branch faggings is connected to first fixed plate.

Further, the device comprises a transmission mechanism for enabling the servo motor to drive the press plate to move vertically, wherein the transmission mechanism comprises a lead screw and a sliding table; the sliding table is arranged in the middle of the first fixing plate, and the screw rod is vertically arranged in the sliding table; the top of the screw rod is connected with a servo motor, and the bottom of the screw rod is provided with a bearing and is installed in a bearing seat at the top of the pressing plate in a matching manner.

Furthermore, the guide post assembly device comprises a guide post and a second fixing plate, wherein the top and the bottom of the guide post are respectively and fixedly connected with the second fixing plate and a pressing plate, a guide through hole is vertically formed in the first fixing plate, and the guide post is assembled in the guide through hole and is in clearance fit with the guide through hole.

Furthermore, four guide through holes are formed in the periphery of the sliding table, and four guide columns are assembled in the guide through holes respectively.

Further, a coupler is connected between the output end of the servo motor and the lead screw.

Furthermore, a digital display pressure gauge is further arranged on the whole frame and electrically connected with the pressure sensor.

Further, the servo motor is fixed on the second fixing plate.

The utility model discloses a servo motor control clamp plate descends and pressurizes the battery module, guarantees that pressure output control is accurate and stable, and the clamp plate levelness is good. The pressure sensor is arranged in the pressure plate, the position of the pressure sensor is the positive center of the pressure plate, and the current pressure value can be fed back in real time when the pressure sensor is pressed down. Furthermore, the utility model has the characteristics of the simple operation.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention in any way.

Fig. 1 is a schematic view of the three-dimensional structure of the tool of the present invention.

Fig. 2 is a schematic side view of the tool of the present invention.

In the figure, 1-an object stage, 2-a servo motor, 3-a pressing plate, 4-a battery module, 5-a side supporting plate, 6-a first fixing plate, 7-a lead screw, 8-a sliding table, 9-a bearing seat, 10-a guide column, 11-a second fixing plate and 12-a digital display pressure gauge.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the present invention will be further clearly and completely described below with reference to the accompanying drawings and embodiments. In addition, the features of the embodiments and examples in the present application may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being 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", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

The utility model relates to a typical embodiment provides a frock for lithium ion battery module pressurization measurement, including whole frame, objective table 1 and pressure feedback mechanism, objective table 1 is used for bearing the battery module; the pressure feedback mechanism is arranged above the objective table 1 and comprises a pressing plate 3 driven by a servo motor 2 to vertically move, and a pressure sensor is arranged in the middle of the inside of the pressing plate 3.

According to the utility model discloses, battery module 4 is placed on objective table 1, adopts and adopts 3 descends of servo motor control clamp plate to pressurize the battery module, guarantees that pressure output control is accurate and stable, and 3 levelness of clamp plate are good. The pressure sensor is arranged in the pressure plate 3, the position of the pressure sensor is the positive center of the pressure plate, the current pressure value can be fed back in real time when the pressure sensor presses down, and the servo motor 2 is controlled to stop acting and maintain the pressure after the pressure reaches a preset value.

In a specific embodiment, the object stage 1 is disposed at the bottom of the whole frame, the whole frame comprises a side supporting plate 5 and a first fixing plate 6, the side supporting plate 5 is disposed symmetrically on both sides of the object stage 1, and the first fixing plate 6 is connected to the top of the two side supporting plates 5. The pressing plate 3 is below the first fixing plate 6. And a digital display pressure gauge is also arranged on the whole frame, and the digital display pressure gauge 12 is electrically connected with the pressure sensor and is used for displaying the current pressure value.

In a preferred embodiment, the tool for measuring the pressurization of the lithium ion battery module further comprises a transmission mechanism for driving the pressing plate 3 to vertically move by the servo motor 2, wherein the transmission mechanism comprises a lead screw 7 and a sliding table 8; the sliding table 8 is arranged in the middle of the first fixing plate 6, and the screw 7 is vertically arranged in the sliding table 8; the top of the screw rod 7 is connected with the servo motor 2, and the bottom of the screw rod 7 is provided with a bearing and is installed in a bearing seat 9 at the top of the pressing plate 3 in a matching manner. A coupling is connected between the output end of the servo motor 2 and the screw rod 7. The servo motor 2 rotates to drive the shaft coupling and the lead screw 7 to rotate, so that the pressing plate 3 is driven to ascend and descend. The adoption of the transmission system can further ensure that the pressure output is accurate and stable.

On the basis of the above embodiment, the tool further comprises a guide mechanism, the guide mechanism mainly comprises a guide column 10 and a second fixing plate 11, the top and the bottom of the guide column 10 are respectively and fixedly connected with the second fixing plate 11 and the pressing plate 3, a guide through hole is vertically formed in the first fixing plate 6, and the guide column 10 is assembled in the guide through hole and is in clearance fit with the guide through hole. During the up-and-down movement of the press plate, the guide posts 10 play a role of guiding, and can keep the press plate horizontal. Preferably, four guide through holes are formed around the sliding table 8, and the four guide columns 10 are respectively assembled in the guide through holes.

The servo motor 2 is fixed on the second fixing plate 11, a through hole is formed in the middle of the second fixing plate 11, and the output end of the servo motor 2 penetrates through the through hole and then is connected with the coupler.

The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents made within the spirit and principle of the invention are intended to be included within the scope of the invention.

Claims

1. The utility model provides a frock for lithium ion battery module pressurization measurement which characterized in that: the device comprises an integral frame, an objective table and a pressure feedback mechanism, wherein the objective table is used for bearing the battery module; the pressure feedback mechanism is arranged above the objective table and comprises a pressing plate which is driven by a servo motor to vertically move, and a pressure sensor is arranged in the middle of the inside of the pressing plate.

2. The lithium ion battery module pressure measurement tool according to claim 1, characterized in that: the objective table set up in the whole frame bottom, whole frame includes collateral branch fagging and first fixed plate, the objective table bilateral symmetry sets up collateral branch fagging, the top at two collateral branch faggings is connected to first fixed plate.

3. The lithium ion battery module pressure measurement tool according to claim 2, characterized in that: the device comprises a transmission mechanism for driving a platen to vertically move by a servo motor, wherein the transmission mechanism comprises a lead screw and a sliding table; the sliding table is arranged in the middle of the first fixing plate, and the screw rod is vertically arranged in the sliding table; the top of the screw rod is connected with a servo motor, and the bottom of the screw rod is provided with a bearing and is installed in a bearing seat at the top of the pressing plate in a matching manner.

4. The lithium ion battery module pressure measurement tool according to claim 3, characterized in that: the guide post is vertically arranged on the first fixing plate and assembled in the guide through hole in a clearance fit mode.

5. The lithium ion battery module pressure measurement tool according to claim 4, characterized in that: four guide through holes are formed in the periphery of the sliding table, and four guide columns are assembled in the guide through holes respectively.

6. The tool for pressure measurement of the lithium ion battery module according to claim 3, 4 or 5, wherein: and a coupler is connected between the output end of the servo motor and the lead screw.

7. The lithium ion battery module pressure measurement tool according to claim 6, characterized in that: the integral frame is also provided with a digital display pressure gauge which is electrically connected with the pressure sensor.

8. The tool for the pressurization measurement of the lithium ion battery module according to claim 4, wherein: the servo motor is fixed on the second fixing plate.