CN217587535U - Lithium battery expansion pressure detection device - Google Patents

Abstract

The utility model relates to a pressure detection field, concretely relates to lithium battery expansion pressure detection device, comprises a workbench, clamping module, detection module and human-computer interaction module, clamping module is including mounting panel, slide, slider, column pivot and disc, on the mounting panel fixed mounting workstation, the mounting panel middle part is seted up the circular slot that runs through its upper and lower both ends, the disc is rotatably installed in the circular slot, set up two arc walls that set up in opposite directions on the disc, a slide is all installed to the left and right sides of mounting panel, all sliding connection has a slider on each slide, the opposite end of two sliders all fixedly connects a column pivot, two column pivots slide along the orbit of two arc walls respectively, detection module is fixed to be set up directly over clamping module, human-computer interaction module fixed mounting is at the front end of frame body; the device can detect lithium batteries with different specifications and sizes, and can enhance the safety in the detection process.

Description

Lithium battery expansion pressure detection device

Technical Field

The utility model relates to a pressure detection field specifically is to a lithium cell inflation pressure measurement.

Background

As an effective electric energy storage device, the lithium ion battery has the advantages of high energy density, large specific power, high output voltage, small self-discharge, long service life and the like, and is widely applied to the fields of electric automobiles, electronic products and the like. However, in the electrochemical cycle process, the volume expansion and shrinkage of the electrode material can be caused by the lithium ion deintercalation process, and the deformation of the whole battery can be caused by the gas generation and heat generation phenomena in the battery, and the deformation is mainly in the thickness direction. At present, the expansion pressure detection device of the lithium battery can only detect the battery with one specification size for most of the detection of the lithium battery panel, and the tooling clamp needs to be replaced when different models are made, so that the labor and the time are wasted.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a lithium battery expansion pressure detection device for solving the problems in the prior art.

For solving the prior art problem, the utility model discloses a technical scheme be:

the utility model provides a lithium cell inflation pressure measurement, which comprises a frame body, still include the workstation, press from both sides tight module, detection module and human-computer interaction module, the workstation is the inboard of horizontality fixed mounting at the frame body, press from both sides tight module including the mounting panel, the slide, the slider, column pivot and disc, on the mounting panel fixed mounting workstation, the mounting panel middle part is seted up the circular slot that runs through both ends from top to bottom, the disc is rotatable to be installed in the circular slot, the upper end and the mounting panel upper end of disc flush, set up two arc walls that set up in opposite directions on the disc, two arc walls all run through the disc, the orbit route of arc wall is extended to being close to disc centre of a circle department with the anticlockwise rotation by a department that is close to the disc outside, a slide is all installed to the left and right sides of mounting panel, equal sliding connection has a slider on every slide, equal fixed connection has a column pivot of the opposite ends of two sliders, the lower extreme of two column pivots is inserted respectively and is located in two arc walls, two column pivots slide along the orbit of two arc walls respectively, detection module is fixed to be set up directly over pressing from both sides tight module, human-computer interaction module fixed mounting is at the front end of frame body.

Preferably, the workbench is fixedly provided with a baffle plate, the baffle plate is positioned between the disc and the sliding block, the baffle plate is provided with two sliding grooves in opposite directions, each columnar rotating shaft penetrates through the sliding grooves to be connected in the arc-shaped grooves in a sliding mode, and the sliding grooves horizontally extend to the two sides of the baffle plate respectively.

Preferably, the opposite ends of the two sliding blocks are fixedly connected with mutually parallel cushion pads, and the cushion pads are made of rubber.

Preferably, the detection module includes the guide pillar, the mounting disc, force sensor, the steel sheet, a pressing plate, first spring and second spring, the guide pillar has four corners of four difference fixed connection at the mounting panel, the mounting disc is located the center of four guide pillars, the diameter of mounting disc is less than the minimum distance between two sliders, the mounting groove that is used for fixed mounting force sensor is offered to the lower extreme of mounting disc, force sensor's sense terminal salient is in the lower extreme of mounting disc, four steel sheet strips of even fixedly connected with all around of mounting disc, the equal circular shape sliding sleeve of the terminal fixedly connected with of four steel sheet strips, four sliding sleeves are respectively established on four guide pillars, the four corners of pressing plate is all established on the guide pillar, the pressing plate is located the top of mounting disc, all the cover is equipped with first spring and second spring on every guide pillar, the both ends of first spring butt pressing plate and sliding sleeve respectively, the both ends of second spring butt mounting panel and sliding sleeve respectively, the elasticity of first spring is greater than the elasticity of second spring.

Preferably, the mounting plate is provided with a wire casing penetrating through two ends of the mounting plate.

Preferably, the detection module further comprises a first mounting bracket and a single-shaft cylinder, the first mounting bracket is fixedly mounted on the workbench, the single-shaft cylinder is fixedly mounted on the first mounting bracket, and the single-shaft cylinder is located right above the pressing plate.

Preferably, the right side of mounting panel is provided with the safety protection module, and the safety protection module includes base, connecting rod and laser sensor, and base fixed mounting is on the workstation, and laser sensor passes through the connecting rod and is connected with the base.

Compared with the prior art, the beneficial effect of this application is:

1. this application sets up the workstation, press from both sides tight module, detection module and human-computer interaction module, press from both sides tight module including the mounting panel, the slide, the slider, column pivot and disc, the circular slot that runs through both ends about it is seted up at the mounting panel middle part, the disc is rotatable to be installed in the circular slot, in operation, can drive the disc rotation through rotary actuator, the column pivot can slide in the arc wall, the column pivot drives two sliders and slides in opposite directions, thereby guarantee that the lithium cell of the different specifications above the disc is pressed from both sides tightly, the operation of control clamp tight module and detection module that the human-computer interaction module can automize.

2. This application is through the equal fixedly connected with blotter of end in opposite directions at two sliders, and the blotter is the rubber material, has guaranteed that the slider when guaranteeing to press from both sides tight lithium cell, rather than between for elastic contact, avoids causing the damage to the lithium cell.

3. This application is through being provided with the guide pillar, the mounting disc, force sensor, the steel lath, clamp plate and first spring, the mounting disc passes through steel lath and sliding sleeve can the up-and-down motion, examine time measuring, press from both sides the lithium cell through clamping module earlier and press from both sides tightly, then press the clamp plate, because the elasticity of first spring is greater than the elasticity of second spring, so stop pressing to the detection end contact of force sensor when lithium cell surface always, clamp plate rigidity this moment, can be to lithium cell charge and discharge, detect the expansion pressure's of this in-process lithium cell change through force sensor, when the lithium cell takes place the inflation, can extrusion force sensor lead to the mounting disc upwards displacement, owing to the effect by first spring, force sensor also accurate detection expansion pressure, this structure can prevent directly with the fixed back of lithium cell both sides, but unable normal inflation causes danger when the inflation of charge and discharge in-process lithium cell.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a perspective view of the present application after concealing a housing body and a bezel

FIG. 3 is an enlarged view of a portion of FIG. 2 of the present application;

FIG. 4 is a perspective view of a baffle of the present application;

FIG. 5 is a perspective view of the clamping module of the present application with the blind hidden;

FIG. 6 is a perspective view of the mounting plate of the present application;

FIG. 7 is a partially exploded perspective view of a detection module of the present application;

the reference numbers in the figures are:

1-a frame body;

2-a workbench;

3-a clamping module; 3 a-a mounting plate; 3a 1-circular groove; 3 b-a slide; 3 c-a slide block; 3 d-a cylindrical rotating shaft; 3 e-a disc; 3e 1-an arc-shaped groove; 3 f-baffle; 3f 1-chute; 3 g-buffer pad;

4-a detection module; 4 a-guide post; 4 b-mounting a disc; 4b 1-mounting groove; 4b 2-wire chase; 4 c-force sensor; 4 d-steel plate strips; 4d 1-a sliding sleeve; 4 e-pressing plate; 4 f-a first spring; 4 g-a second spring; 4 h-a first mounting bracket; 4 i-single axis cylinder;

5-a human-computer interaction module;

6-a safety protection module; 6 a-a base; 6 b-a connecting rod; 6 c-laser sensor;

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1-7, the present application provides:

a lithium battery expansion pressure detection device comprises a frame body 1, a workbench 2, a clamping module 3, a detection module 4 and a human-computer interaction module 5, wherein the workbench 2 is fixedly arranged at the inner side of the frame body 1 in a horizontal state, the clamping module 3 comprises a mounting plate 3a, a sliding seat 3b, a sliding block 3c, a columnar rotating shaft 3d and a disc 3e, the mounting plate 3a is fixedly arranged on the workbench 2, the middle part of the mounting plate 3a is provided with a circular groove 3a1 penetrating through the upper end and the lower end of the mounting plate 3a, the disc 3e is rotatably arranged in the circular groove 3a1, the upper end of the disc 3e is flush with the upper end of the mounting plate 3a, the disc 3e is provided with two arc-shaped grooves 3e1 which are oppositely arranged, and the two arc-shaped grooves 3e1 both penetrate through the disc 3e, the orbit route of arc wall 3e1 is by being close to disc 3e outside one with the rotatory extension of anticlockwise to being close to disc 3e centre of a circle department, slide 3b is all installed to the left and right sides of mounting panel 3a, equal sliding connection has a slider 3c on every slide 3b, the equal fixed connection of the end in opposite directions of two sliders 3c column pivot 3d, the lower extreme of two column pivots 3d is inserted respectively and is located two arc walls 3e1, two column pivots 3d slide along the orbit of two arc walls 3e1 respectively, detection module 4 is fixed to be set up directly over clamping module 3, 5 fixed mounting of man-machine interaction module are at the front end of frame body 1.

Based on the above embodiments, the technical problem that the present application intends to solve is how to perform expansion pressure detection on lithium batteries with different specifications and sizes. Therefore, the utility model provides a workstation 2, press from both sides tight module 3, detection module 4 and human-computer interaction module 5, press from both sides tight module 3 including mounting panel 3a, slide 3b, slider 3c, column pivot 3d and disc 3e, circular slot 3a1 that runs through both ends about it is seted up at mounting panel 3a middle part, disc 3e is rotatable installs in circular slot 3a1, in operation, through rotary actuator (rotary actuator fixed mounting is at the lower extreme of workstation 2, the drive shaft is through running through workstation 2 and disc 3e fixed connection, rotary actuator is current servo motor, not shown in the figure), can drive disc 3e rotatory, column pivot 3d can slide in arc groove 3e1, column pivot 3d drives two sliders 3c and slides in opposite directions, thereby guarantee the lithium cell of different specifications above disc 3e, the operation of tight module 3 of the tight module 4 of the tight is pressed from both sides in the control that human-computer interaction module 5 can automize.

Further, as shown in fig. 1, 4 and 5:

fixed mounting has baffle 3f on workstation 2, and baffle 3f is located in the middle of disc 3e and slider 3c, and the last relative two spouts 3f1 that are provided with of baffle 3f, and every column pivot 3d all passes spout 3f1 sliding connection in arc wall 3e1, and spout 3f1 level respectively extends to the both sides of baffle 3 f.

Based on the above embodiment, the technical problem that this application wants to solve is that the lithium cell directly places and presss from both sides tightly on disc 3e, and the rotation of disc 3e can influence the position of lithium cell. For this reason, this application is through being equipped with baffle 3f on disc 3e, baffle 3f fixed mounting is on workstation 2, the lithium cell is put and is pressed from both sides tightly on baffle 3f, thereby guarantee that the rotation of disc 3e can not influence baffle 3f and lithium cell, spout 3f1 has been seted up again on baffle 3f, when slider 3c presss from both sides tightly the work piece, can guarantee that column pivot 3d can slide in spout 3f1, can not influence slider 3 c's motion in opposite directions.

Further, as shown in fig. 5:

the opposite ends of the two sliding blocks 3c are fixedly connected with mutually parallel cushion pads 3g, and the cushion pads 3g are made of rubber.

Based on above-mentioned embodiment, the technical problem that this application wanted to solve is when the extrusion to the lithium cell, and slider 3c and lithium cell can cause certain damage of lithium cell for the rigid contact, influence the accuracy to lithium cell inflation pressure detection. For this reason, this application is through the equal fixedly connected with blotter 3g in the end in opposite directions at two slider 3c, and blotter 3g is the rubber material, has guaranteed that slider 3c when guaranteeing to press from both sides tight lithium cell, rather than between for elastic contact, avoids causing the damage to the lithium cell.

Further, as shown in fig. 1, 2, 3, and 7:

the detection module 4 comprises a guide pillar 4a, a mounting disc 4b, a force sensor 4c, steel strips 4d, a pressing plate 4e, a first spring 4f and a second spring 4g, the guide pillar 4a is provided with four corners fixedly connected to the mounting plate 3a respectively, the mounting disc 4b is located at the centers of the four guide pillars 4a, the diameter of the mounting disc 4b is smaller than the minimum distance between the two sliders 3c, a mounting groove 4b1 for fixedly mounting the force sensor 4c is formed in the lower end of the mounting disc 4b, the detection end of the force sensor 4c protrudes out of the lower end of the mounting disc 4b, the four steel strips 4d are uniformly and fixedly connected around the mounting disc 4b, the tail ends of the four steel strips 4d are fixedly connected with a circular sliding sleeve 4d1, the four sliding sleeves the guide pillar 4a respectively, the four corners of the pressing plate 4e are sleeved on the guide pillar 4a respectively, the pressing plate 4e is located above the mounting disc 4b, each guide pillar 4a is sleeved with the first spring 4f and the second spring 4g, two ends of the first spring 4f are abutted against the pressing plate 4e, and two ends of the second spring 4g are abutted against the mounting plate 4d respectively, and two ends of the second spring 4g are abutted against the mounting plate 4 g.

Based on the above embodiments, the technical problem that the present application intends to solve is how to detect the expansion pressure of the lithium battery by the detection module 4. Therefore, this application is through being provided with guide pillar 4a, mounting disc 4b, force sensor 4c, the steel sheet strip 4d, clamp plate 4e and first spring 4f, mounting disc 4b can up-and-down motion through steel sheet strip 4d and sliding sleeve 4d1, when detecting, press the lithium cell through pressing from both sides tight module 3 earlier, then press down clamp plate 4e, because the elasticity of first spring 4f is greater than the elasticity of second spring 4g, so press down to stop pressing when force sensor 4 c's detection end contacts to the lithium cell surface always, with clamp plate 4e position fixing this moment, can be to the charge-discharge lithium cell, detect the change of the inflation pressure of this in-process lithium cell through force sensor 4c, when the lithium cell takes place the inflation, can extrusion force sensor 4c lead to mounting disc 4b upwards displacement, because by the effect of first spring 4f, force sensor 4c also accurate detection inflation pressure, this structure can prevent directly after fixing the lithium cell both sides, but can's normal inflation causes danger when the charge-discharge in-process lithium cell inflation.

Further, as shown in fig. 7:

the mounting plate 4b is provided with a wire slot 4b2 which runs through two ends of the mounting plate.

Based on the above embodiments, the technical problem that the present application intends to solve is the routing problem of the force sensor 4 c. Therefore, the wire casing 4b2 penetrating through the two ends of the installation disc 4b is arranged on the installation disc 4b, so that the force sensor 4c is convenient to wire and feed back, and the detection data can be observed in real time conveniently through the man-machine interaction module 5.

Further, as shown in fig. 1-3:

detection module 4 still includes first installing support 4h and unipolar cylinder 4i, and first installing support 4h fixed mounting is on workstation 2, and unipolar cylinder 4i fixed mounting is on first installing support 4h, and unipolar cylinder 4i is located clamp plate 4e directly over.

Based on the above-described embodiments, the technical problem that the present application intends to solve is to drive the platen 4e to move and fix its position. For this reason, this application is through being provided with first installing support 4h and unipolar cylinder 4i, first installing support 4h fixed mounting is on workstation 2, unipolar cylinder 4i fixed mounting is on first installing support 4h, unipolar cylinder 4i is located clamp plate 4e directly over, through the downward displacement of clamp plate 4e under the unipolar cylinder 4i operating condition, until the stroke limit of moving to unipolar cylinder 4i, so clamp plate 4e position is fixed promptly, force sensor 4c butt is on the lithium cell surface this moment, first spring 4f and second spring 4g have certain compression, when detecting the end, unipolar cylinder 4i resumes initial position.

Further, as shown in fig. 1-2:

the right side of mounting panel 3a is provided with safety protection module 6, and safety protection module 6 includes base 6a, connecting rod 6b and laser sensor 6c, and base 6a fixed mounting is on workstation 2, and laser sensor 6c passes through connecting rod 6b and is connected with base 6 a.

Based on the above embodiments, the technical problem that the present application intends to solve is how to ensure safety protection in the detection process. For this reason, this application can detect the real-time displacement condition of mounting disc 4b through installing laser sensor 6c, through laser sensor 6c to judge the inflation displacement of lithium cell, laser sensor 6c feeds back this data to human-computer interaction module 5, and when the danger that the explosion probably takes place for lithium cell displacement transfinites, this moment through human-computer interaction module 5 with the circuit short circuit, can guarantee certain security.

The above examples are merely illustrative of one or more embodiments of the present invention, and the description thereof is more specific and detailed, but not intended to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (7)

1. The lithium battery expansion pressure detection device comprises a rack body (1), and is characterized by further comprising a workbench (2), a clamping module (3), a detection module (4) and a human-computer interaction module (5), wherein the workbench (2) is fixedly installed on the inner side of the rack body (1) in a horizontal state, the clamping module (3) comprises a mounting plate (3 a), a sliding seat (3 b), a sliding block (3 c), a columnar rotating shaft (3 d) and a disc (3 e), the mounting plate (3 a) is fixedly installed on the workbench (2), a circular groove (3 a 1) penetrating through the upper end and the lower end of the mounting plate (3 a) is formed in the middle of the mounting plate (3 a), the disc (3 e) is rotatably installed in the circular groove (3 a 1), the upper end of the disc (3 e) is flush with the upper end of the mounting plate (3 a), two arc grooves (3 e 1) which are oppositely arranged are formed in the disc (3 e), the two arc grooves (3 e 1) penetrate through the disc (3 e), the track of the arc groove (3 e 1) is formed by one sliding block (3 e) at the position close to the outer side of the disc (3 e) and the sliding block (3 e) and is connected with the two sliding blocks (3 b) which extend towards the left side and right side of the sliding block (3 b) and right side, the lower ends of the two columnar rotating shafts (3 d) are respectively inserted into the two arc-shaped grooves (3 e 1), the two columnar rotating shafts (3 d) respectively slide along the tracks of the two arc-shaped grooves (3 e 1), the detection module (4) is fixedly arranged right above the clamping module (3), and the man-machine interaction module (5) is fixedly arranged at the front end of the rack body (1).

2. The lithium battery expansion pressure detection device according to claim 1, wherein a baffle (3 f) is fixedly mounted on the workbench (2), the baffle (3 f) is located between the disc (3 e) and the slider (3 c), two sliding grooves (3 f 1) are oppositely arranged on the baffle (3 f), each cylindrical rotating shaft (3 d) penetrates through the sliding groove (3 f 1) and is slidably connected into the arc-shaped groove (3 e 1), and the sliding grooves (3 f 1) horizontally extend to two sides of the baffle (3 f) respectively.

3. The lithium battery expansion pressure detection device according to claim 2, wherein the opposite ends of the two sliders (3 c) are fixedly connected with mutually parallel cushions (3 g), and the cushions (3 g) are made of rubber.

4. The lithium battery expansion pressure detection device according to claim 2, wherein the detection module (4) comprises a guide post (4 a), a mounting disc (4 b), a force sensor (4 c), a steel plate strip (4 d), a pressing plate (4 e), a first spring (4 f) and a second spring (4 g), the guide post (4 a) is provided with four corners fixedly connected to the mounting plate (3 a) respectively, the mounting disc (4 b) is located at the center of the four guide posts (4 a), the diameter of the mounting disc (4 b) is smaller than the minimum distance between the two sliding blocks (3 c), the lower end of the mounting disc (4 b) is provided with a mounting groove (4 b 1) for fixedly mounting the force sensor (4 c), the detection end of the force sensor (4 c) protrudes out of the lower end of the mounting disc (4 b), the four steel plate strips (4 d) are uniformly and fixedly connected around the mounting disc (4 b), the ends of the four steel plate strips (4 d) are fixedly connected with a circular sliding sleeve (4 d 1), the four sliding sleeves of the guide post (4 d 1) are respectively arranged on the guide post (4 a), the upper end of the second spring (4 e) and the pressing plate (4 g) are respectively sleeved on the four corners of the guide post (4 b), the first spring (4 e), the second spring (4 e) and the pressing plate (4 e), two ends of the second spring (4 g) are respectively abutted against the mounting plate (3 a) and the sliding sleeve (4 d 1), and the elastic force of the first spring (4 f) is greater than that of the second spring (4 g).

5. The lithium battery expansion pressure detection device according to claim 4, wherein the mounting plate (4 b) is provided with a slot (4 b 2) penetrating through two ends thereof.

6. The lithium battery expansion pressure detection device according to claim 4, wherein the detection module (4) further comprises a first mounting bracket (4 h) and a single-shaft cylinder (4 i), the first mounting bracket (4 h) is fixedly mounted on the workbench (2), the single-shaft cylinder (4 i) is fixedly mounted on the first mounting bracket (4 h), and the single-shaft cylinder (4 i) is located right above the pressing plate (4 e).

7. The lithium battery expansion pressure detection device according to claim 1, wherein a safety protection module (6) is arranged on the right side of the mounting plate (3 a), the safety protection module (6) comprises a base (6 a), a connecting rod (6 b) and a laser sensor (6 c), the base (6 a) is fixedly mounted on the workbench (2), and the laser sensor (6 c) is connected with the base (6 a) through the connecting rod (6 b).

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