New energy automobile battery airtightness detection device

Abstract

The utility model discloses a new energy automobile battery air tightness detection device, which comprises a rack and a support frame, the support frame is arranged on the rack, the rack is provided with a sliding track, the sliding track is slidably connected with a sliding frame, the support frame is provided with a clamping mechanism, four side edges of the support frame are provided with covering curtains, and the covering curtains are connected with the clamping mechanism. The clamping mechanism drives the battery module to abut against the sliding frame, and the interior of the supporting frame is sealed through the covering curtain. According to the new energy automobile battery airtightness detection device provided by the utility model, the sliding frame can move into the supporting frame through the sliding track, the battery module in the sliding frame can be fixed in the supporting frame through the clamping mechanism, and the internal environment of the supporting frame is closed through the covering curtain; therefore, the influence of the external environment on the air tightness test during the air tightness test can be reduced, the precision of the air tightness test of the battery module can be improved, and the processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile battery production equipment, in particular to a new energy automobile battery air tightness detection device. Background Art

[0002] With the development of new energy vehicles, the protection capability requirements of power battery systems are getting higher and higher, and therefore the sealing performance requirements of battery packs are getting higher and higher. During the battery pack production process, the battery pack needs to be tested for air tightness to ensure that the battery pack performance meets the requirements.

[0003] According to the invention patent application with publication number: CN105810970A and publication date of 2016-07-27, a method for quickly detecting the sealing of a battery box is disclosed, which includes the following steps: 1) sealing the battery box to be tested; 2) applying an auxiliary detection liquid for detecting the position of the leakage on the body of the battery box to be tested; pressurizing the battery box to be tested through an inflator; 4) maintaining the pressure of the battery box to be tested, and calculating the range of the attenuation indication of the pressure value of the battery box to be tested. When the internal pressure of the battery box after pressure maintenance is FN1≥FN2-k*t, the sealing of the battery box to be tested is qualified, wherein FN2 is the starting internal pressure of the battery box for starting pressure maintenance, k is the attenuation constant, and t is the pressure maintenance time; 5) judging the exact position of the battery box leakage by observing the bubbling state of the auxiliary detection liquid. Its main technical effects are: it can greatly reduce the detection cost, and can quickly judge the position of the battery box leakage, and improve work efficiency.

[0004] In the prior art, the battery module is in an open environment when undergoing an air tightness test, which will have a certain impact on the accuracy of the battery module air tightness test. To this end, a new energy vehicle battery air tightness detection device is proposed, which aims to solve the problem in the prior art that the battery module is in an open environment for testing the air tightness, which will have a certain impact on the accuracy of the battery module air tightness test. Utility Model Content

[0005] The purpose of the utility model is to provide a new energy vehicle battery air tightness detection device

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A new energy vehicle battery air tightness detection device comprises a frame and a support frame, wherein the support frame is arranged on the frame, and is characterized in that a sliding track is arranged on the frame, a sliding frame is slidably connected to the sliding track, a clamping mechanism is arranged on the support frame, and covering curtains are arranged on the four sides of the support frame, a battery module is driven to abut against the sliding frame by the clamping mechanism, and the interior of the support frame is sealed by the covering curtain.

[0008] Preferably, the clamping mechanism includes a guide column, a lifting drive unit, a lifting seat and an extrusion module, the guide column is fixedly installed inside the support frame, the lifting drive unit is fixedly installed on the top of the support frame, the output end of the lifting drive unit passes through and extends into the support frame, the lifting seat is fixedly installed at the output end of the lifting drive unit, and the extrusion module is fixedly installed on the outer wall of one side of the lifting seat.

[0009] Preferably, a positioning piece is fixedly provided inside the sliding frame.

[0010] Preferably, the extrusion module includes a fixed seat, a fixed sleeve, a mounting strip and an elastic unit. The fixed seat is fixedly mounted on an outer wall of one side of the lifting seat, the fixed sleeve is fixedly connected to the fixed seat, a movable head is movably connected inside the fixed sleeve, the elastic unit is installed between the movable head and the fixed seat, and the mounting strip is fixedly connected to the movable head.

[0011] Preferably, a mounting seat is fixedly mounted on the outer wall of one side of the support frame, and an airtightness measuring instrument is fixedly mounted inside the mounting seat.

[0012] Preferably, the positioning member comprises a positioning seat and a positioning cylinder, the positioning seat is fixedly mounted on both sides of the sliding frame, and the positioning cylinder is symmetrically mounted on the outer wall of one side of the sliding frame.

[0013] In the above technical solution, the utility model provides a new energy vehicle battery air tightness detection device, which has the following beneficial effects:

[0014] In the utility model, the sliding frame can be moved to the inside of the support frame by means of a sliding track, the battery module inside the sliding frame can be fixed inside the support frame by means of a clamping mechanism, and the internal environment of the support frame can be sealed by means of a covering curtain, thereby reducing the influence of the external environment on the airtightness test during the airtightness test, improving the accuracy of the airtightness test of the battery module, and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of a three-dimensional structure provided for an embodiment of the utility model;

[0017] Figure 2 A partial structural schematic diagram of a pipe clamp provided in an embodiment of the utility model;

[0018] Figure 3 A schematic diagram of a sliding frame structure provided by an embodiment of the utility model;

[0019] Figure 4 A schematic diagram of a partial structure of a clamping mechanism provided in an embodiment of the utility model;

[0020] Figure 5 A schematic diagram of the structure of an extrusion module provided in an embodiment of the utility model;

[0021] Figure 6 This is a schematic cross-sectional structural diagram of an extrusion module provided in an embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 1. Frame; 2. Support frame; 3. Sliding track; 4. Sliding frame; 5. Clamping mechanism; 51. Guide column; 52. Lifting drive unit; 53. Lifting seat; 54. Extrusion module; 541. Fixed seat; 542. Movable sleeve; 543. Mounting strip; 544. Elastic unit; 545. Extrusion block; 546. Moving head; 6. Positioning piece; 61. Positioning seat; 62. Positioning cylinder. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] See also Figure 1 —6. A new energy vehicle battery air tightness detection device comprises a frame 1 and a support frame 2, wherein the support frame 2 is arranged on the frame 1, and a sliding track 3 is arranged on the frame 1, and a sliding frame 4 is slidably connected to the sliding track 3, and a clamping mechanism 5 is arranged on the support frame 2. Cover curtains 7 are arranged on the four sides of the support frame 2, and the battery module is driven to abut against the sliding frame 4 through the clamping mechanism 5, and the interior of the support frame 2 is sealed through the cover curtain 7.

[0026] like Figure 1 As shown, the support frame 2 is fixedly arranged at one end of the frame 1, a sliding track 3 is arranged on the frame 1, one end of the sliding track 3 is located inside the support frame 2, a sliding frame 4 is arranged on the sliding track 3, a sliding drive module is arranged on the frame 1, the output end of the sliding drive module is connected to the sliding frame 4, and the sliding frame 4 can be driven to keep sliding along the sliding track 3 through the sliding drive module. Further, as shown in FIG. Figure 1As shown, a cover curtain 7 is provided on the four adjacent sides of the top of the support frame 2. Preferably, the cover curtain 7 is selected with an electric unfolding function, and the cover curtain 7 is driven by an internal motor to unfold or retract, and the four sides of the support frame 2 are covered by the cover curtain 7 to reduce the air circulation inside and outside the support frame 2, thereby reducing the impact on the accuracy during the air tightness test. A clamping mechanism 5 is provided inside the support frame 2, and the battery module can be fixed on the sliding frame 4 through the clamping mechanism 5. Specifically, the sliding drive module can be a motor or an electric slide rail.

[0027] In the utility model, the sliding frame 4 can be moved to the inside of the support frame 2 through the sliding track 3, the battery module inside the sliding frame 4 can be fixed inside the support frame 2 through the clamping mechanism 5, and the internal environment of the support frame 2 can be sealed through the covering curtain 7, thereby reducing the influence of the external environment on the airtightness test during the airtightness test, improving the accuracy of the battery module airtightness test, and improving the processing efficiency.

[0028] As an embodiment provided by the utility model, Figure 4 , Figure 5 and Figure 6 As shown, the clamping mechanism 5 includes a guide column 51, a lifting drive unit 52, a lifting seat 53 and an extrusion module 54. Specifically, the guide column 51 is fixedly installed between the support frame 2 and the frame 1. The number of the guide columns 51 is four, and the four guide columns 51 are distributed in a rectangular array. The lifting seat 53 is slidably connected to the guide column 51, and the guide column 51 can be used to keep the lifting seat 53 moving in a fixed direction. The lifting drive unit 52 is fixedly installed on the top of the support frame 2. Specifically, the top of the support frame 2 is a closed structure. The output end of the lifting drive unit 52 passes through and extends into the interior of the support frame 2. The output end of the lifting drive unit 52 is connected to the lifting seat 53. The lifting drive unit 52 can drive the lifting seat 53 to keep moving along the guide column 51. The extrusion module 54 is fixedly arranged on the outer wall of one side of the lifting seat 53.

[0029] As an embodiment provided by the utility model, Figure 5 and Figure 6 As shown, the extrusion module 54 includes a fixing seat 541, a fixing sleeve 542, a mounting bar 543 and an elastic unit 544. Figure 4As shown, the fixed seat 541 is fixedly installed on the outer wall of one side of the lifting seat 53, the fixed sleeve 542 is fixedly connected to the outer wall of the fixed seat 541, the fixed sleeve 542 is movably connected with a movable head 546 inside, the elastic unit 544 is installed between the movable head 546 and the fixed seat 541, the mounting strip 543 is fixedly connected to the movable head 546, one end of the elastic unit 544 is fixedly connected to the fixed seat 541, and the other end of the elastic unit 544 is fixedly connected to the movable head 546, and the movable head 546 is driven away from the fixed seat 541 by the elastic force of the elastic unit 544 itself. Specifically, the elastic unit 544 is a compression spring, and the mounting strip 543 is fixedly connected to the outer wall of one side of the fixed sleeve 542. Preferably, the number of the fixed seat 541 and the fixed sleeve 542 is two, and the two ends of the mounting strip 543 are fixedly installed on the two movable heads 546 respectively. Further, as Figure 6 As shown, an extrusion block 545 is installed on the outer wall of one side of the mounting strip 543 .

[0030] As an embodiment provided by the utility model, Figure 2 and Figure 3 As shown, a positioning member 6 is fixedly arranged inside the sliding frame 4. Figure 3 As shown, the positioning member 6 is arranged on the sliding frame 4. Specifically, the positioning member 6 includes a positioning seat 61 and a positioning cylinder 62. The positioning seat 61 is fixedly installed on both sides of the sliding frame 4, and the positioning cylinder 62 is symmetrically installed on the outer wall of one side of the sliding frame 4. Figure 2 As shown, there are several positioning seats 61, which are symmetrically arranged on the outer wall on one side of the sliding frame 4; there are several positioning cylinders 62, which are symmetrically installed on the outer wall on one side of the sliding frame 4; and the positioning cylinders 62 and the positioning seats 61 are distributed in a rectangular array, and the battery module can be positioned by the positioning cylinders 62 distributed at both ends.

[0031] As a further embodiment provided by the present utility model, Figure 1 As shown, a mounting seat 21 is fixedly mounted on the outer wall of one side of the support frame 2, and an airtightness measuring instrument is fixedly mounted inside the mounting seat 21. By keeping the airtightness measuring instrument and the inside of the battery module connected and then introducing gas, it is possible to measure whether the battery module is leaking.

[0032] Working principle:

[0033] Place the battery module on the sliding frame 4 by a robotic arm;

[0034] The output end of the positioning cylinder 62 is driven to abut against the battery module, so that the battery module and the sliding frame 4 are fixedly connected, and the sliding frame 4 is driven to move along the sliding track 3 to the inside of the support frame 2 by the sliding drive module;

[0035] Then, the lifting seat 53 is driven down by the lifting driving unit 52, and the pressing module 54 on the lifting seat 53 abuts against the battery module, so that the battery module can be closely fitted with the sliding frame 4 to ensure air tightness. The elastic unit 544 of the pressing module 54 can provide a buffer when the pressing block 545 on the mounting bar 543 abuts against the outer wall of the battery module, so as to ensure the uniformity of pressing the battery module and the air tightness between the battery module and the sliding frame 4.

[0036] Connect the airtightness measuring instrument to the battery module, then introduce gas to measure the airtightness of the battery module.

[0037] Those skilled in the art will appreciate that other similar connection methods may also be used to implement the present invention, such as welding, bonding or screwing.

[0038] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A new energy vehicle battery air tightness detection device, comprising a frame (1) and a support frame (2), wherein the support frame (2) is arranged on the frame (1), characterized in that: The frame (1) is provided with a sliding track (3), a sliding frame (4) is slidably connected to the sliding track (3), a clamping mechanism (5) is provided on the support frame (2), and covering curtains (7) are provided on the four sides of the support frame (2); the battery module is driven to abut against the sliding frame (4) by the clamping mechanism (5), and the interior of the support frame (2) is sealed by the covering curtains (7).

2. A new energy vehicle battery air tightness detection device according to claim 1, characterized in that: The clamping mechanism (5) comprises a guide column (51), a lifting drive unit (52), a lifting seat (53) and an extrusion module (54); the guide column (51) is fixedly mounted inside the support frame (2); the lifting drive unit (52) is fixedly mounted on the top of the support frame (2); the output end of the lifting drive unit (52) passes through and extends into the support frame (2); the lifting seat (53) is fixedly mounted on the output end of the lifting drive unit (52); and the extrusion module (54) is fixedly mounted on the outer wall of one side of the lifting seat (53).

3. A new energy vehicle battery air tightness detection device according to claim 1, characterized in that: A positioning member (6) is fixedly arranged inside the sliding frame (4).

4. A new energy vehicle battery air tightness detection device according to claim 2, characterized in that: The extrusion module (54) comprises a fixed seat (541), a fixed sleeve (542), a mounting strip (543) and an elastic unit (544); the fixed seat (541) is fixedly mounted on an outer wall of one side of the lifting seat (53); the fixed sleeve (542) is fixedly connected to the fixed seat (541); a movable head (546) is movably connected inside the fixed sleeve (542); the elastic unit (544) is mounted between the movable head (546) and the fixed seat (541); and the mounting strip (543) is fixedly connected to the movable head (546).

5. A new energy vehicle battery air tightness detection device according to claim 1, characterized in that: A mounting seat (21) is fixedly mounted on an outer wall of one side of the support frame (2), and an airtightness measuring instrument is fixedly mounted inside the mounting seat (21).

6. A new energy vehicle battery air tightness detection device according to claim 3, characterized in that: The positioning member (6) comprises a positioning seat (61) and a positioning cylinder (62); the positioning seat (61) is fixedly mounted on both sides of the sliding frame (4); and the positioning cylinder (62) is symmetrically mounted on the outer wall of one side of the sliding frame (4).

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