Vacuum box tool

Abstract

The utility model discloses a vacuum box tool, which relates to the technical field of vacuum box leak detection equipment, and comprises a box body, a plurality of groups of positioning structures arranged from front to back are arranged in the box body, each group of positioning structure is composed of a first clamping plate and a second clamping plate, and a liquid cooling plate is arranged in the relative space of the first clamping plate and the second clamping plate. The device further comprises a driving air cylinder arranged in the box body, and the output end of the driving air cylinder is connected with the first clamping plate located at the foremost end in the multiple sets of positioning structures. According to the utility model, through the combined arrangement of a plurality of positioning structures, a plurality of liquid cooling plates can be detected at the same time, and the working efficiency of liquid cooling plate leakage detection operation is improved. The plurality of positioning structures are linked, so that the spacing can be reduced and enlarged to position the plurality of liquid cooling plates, the stability of the plurality of liquid cooling plates during helium leak detection operation in the box body can be effectively improved, and the phenomena of displacement and deformation of the liquid cooling plates in the process of air exhaust and air inflation of the box body are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum box leak detection equipment, in particular to a vacuum box tooling. Background Art

[0002] Helium leak testing for battery liquid cooling plates is a vacuum leak detection technology that uses helium as a tracer gas. This technology is primarily used in the new energy liquid cooling plate industry. During the testing process, a vacuum chamber is often used as the testing instrument. The test piece is placed in a vacuum chamber, which is connected to the leak detector, which is then connected to a helium source. During the leak test, the chamber is evacuated to a certain vacuum level, and then the test piece is filled with helium at a certain pressure. If there are leaks in the wall of the test piece, helium will enter the vacuum chamber through the holes and randomly enter the leak detector, where the leak rate value is indicated by the instrument's output meter.

[0003] Existing vacuum chambers used for helium leak detection in battery liquid cooling plates can typically only test one workpiece at a time. This results in low efficiency and a long inspection time in the mass production of battery liquid cooling plates. If leak detection is performed on multiple workpieces within a vacuum chamber, the thin plates of the cooling plates cannot be guaranteed to maintain stability during the inflation and degassing operations. The plates are easily displaced and collided under the influence of air pressure, which can lead to deformation and affect the proper function of the cooling plates. Utility Model Content

[0004] In response to the above problems, the present application provides a vacuum box tooling.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a vacuum box tooling, comprising a box body, wherein the box body is provided with multiple groups of positioning structures arranged from front to back, each group of the positioning structures is composed of a first clamping plate and a second clamping plate, and a liquid cooling plate is provided in the relative space between the first clamping plate and the second clamping plate.

[0006] It also includes a driving cylinder arranged in the box body, the output end of the driving cylinder is connected to the first clamping plate located at the front end of the multiple positioning structures, the first clamping plates in the positioning structures located at the rear are fixed to the second clamping plates in the positioning structure in front of them, the bottom ends of the first clamping plate and the second clamping plate are respectively provided with a guide foot 1 and a guide foot 2, the guide foot 1 and the guide foot 2 are connected by an elastic structure, when the first clamping plate at the front end moves toward the rear, the elastic structure moves synchronously, and the distance between the first clamping plate and the second clamping plate in the multiple positioning structures is shortened.

[0007] Furthermore, the bottom ends of the first clamping plate and the second clamping plate are provided with sliders, the slider at the rear end abuts against the inner wall of the box body 1, and the inner bottom wall of the box body is provided with linear guide rails adapted to the sliders.

[0008] Furthermore, the elastic structure includes a guide rod arranged below the first clamping plate and the second clamping plate, and the guide rod is provided with a pressure spring distributed coaxially therewith, one end of the pressure spring is fixed on the guide support leg 1, and the guide support leg is set on the guide rod, and the other end of the pressure spring is connected to a limit pin, and the limit pin is fixed to the end of the guide rod away from the guide support leg 1, and the guide support leg 2 is fixed on the limit pin. When the first clamping plate located at the front end moves toward the rear, the guide support leg 1 squeezes the pressure spring to contract until the guide support leg 2 and the second clamping plate move.

[0009] Furthermore, an intercepting ring is provided at one end of the guide rod close to the guide leg 1, and when the guide leg 1 squeezes the pressure spring to contract, the distance between the intercepting ring and the guide leg 1 is expanded.

[0010] Furthermore, connecting frames are provided on both sides of the second clamping plate, and accommodating seats are provided on the connecting frames. When the liquid cooling plate is placed in the relative space between the first clamping plate and the second clamping plate, both ends of the liquid cooling plate are located inside the accommodating seats.

[0011] Furthermore, the accommodating seat is provided with a sealing joint for sealing the opening of the liquid cooling plate.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] This utility model utilizes a combination of multiple positioning structures to detect multiple liquid cooling plates within a housing, improving the efficiency of leak detection. The multiple positioning structures are linked together to narrow or widen the spacing between them to position multiple cooling plates. This improves the efficiency of leak detection and effectively prevents the stability of multiple cooling plates during helium leak detection within the housing, preventing displacement and deformation of the cooling plates during the pumping and filling processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the distribution of the first clamping plate, the second clamping plate and the driving cylinder of the present invention.

[0017] Figure 3 It is the second view angle schematic view of the distribution state of the first clamping plate, the second clamping plate and the driving cylinder.

[0018] Figure 4 It is the schematic view of the connecting structure of the first clamping plate and the second clamping plate.

[0019] Figure 5 It is the utility model Figure 4 The schematic view of the enlarged structure at A.

[0020] Figure 6 It is the schematic view of the connecting of the liquid cooling plate, the containing seat and the sealing joint.

[0021] In the figure: 1, box body; 2, driving cylinder; 3, liquid cooling plate; 4, first clamping plate; 41, guide foot one; 5, second clamping plate; 51, guide foot two; 52, link frame; 53, containing seat; 54, sealing joint; 6, sliding block; 7, linear guide rail; 8, guide rod; 9, pressure spring; 10, limit pin; 11, intercept ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0023] Embodiment: refer to Figures 1-4 The vacuum box tool shown in the figure, including box body 1, the box body 1 is equipped with multiple groups of from front to rear arrangement positioning structure, each group of positioning structure is by first clamping plate 4 and second clamping plate 5, the relative space of first clamping plate 4, second clamping plate 5 is equipped with liquid cooling plate 3. In the box body 1, multiple liquid cooling plates 3 can be detected, and the working efficiency of liquid cooling plate 3 leak detection operation is improved.

[0024] The first and second clamping plates 4 and 5 are fixed to each other at the bottom ends of the first and second clamping plates 4 and 5, respectively. The first and second clamping plates 4 and 5 are connected by an elastic structure. When the first clamping plate 4 at the front moves toward the rear, the elastic structure moves synchronously. The first and second clamping plates 4 and 5 in the multiple positioning structures narrow the distance between them to position multiple liquid cooling plates 3. While improving the working efficiency of the leak detection operation of the liquid cooling plates 3, it can effectively avoid the stability of the multiple liquid cooling plates 3 when undergoing helium leak detection operation inside the box 1, and avoid displacement and deformation of the liquid cooling plates 3 during the vacuum and inflation process.

[0025] The bottom ends of the first and second clamping plates 4, 5 are each provided with a slider 6. The slider 6 at the rear end abuts the inner wall of the box body 1. Therefore, when the first and second clamping plates 4, 5 in the multiple positioning structures are spaced closer together, the rear end second clamping plate 5 cannot move. This allows the first and second clamping plates 4, 5 in the multiple positioning structures to accurately and quickly reduce their spacing. To maintain stability during movement of the first and second clamping plates 4, 5, linear guide rails 7 are provided on the inner bottom wall of the box body 1, which are compatible with the slider 6.

[0026] Specifically, such as Figure 4 、 Figure 5 As shown, the elastic structure includes a guide rod 8 arranged below the first clamping plate 4 and the second clamping plate 5, and a pressure spring 9 is provided on the guide rod 8 and distributed coaxially therewith. One end of the pressure spring 9 is fixed on the guide leg 1 41, and the guide leg 1 41 is sleeved on the guide rod 8. The other end of the pressure spring 9 is connected to the limit pin 10, and the limit pin 10 is fixed to the end of the guide rod 8 away from the guide leg 1 41, and the guide leg 2 51 is fixed on the limit pin 10.

[0027] When the first clamping plate 4 at the front moves backward, the first guide leg 41 squeezes the pressure spring 9, shrinking the distance between the first clamping plate 4 and the second clamping plate 5. This tightens the liquid cooling plate 3 and maintains its stability. When the pressure spring 9 shrinks to its limit, the limit pin 10 connected to it drives the second guide leg 51 and the second clamping plate 5 to move.

[0028] In the present application, the first clamping plate 4 in the positioning structure at the rear is fixed to the second clamping plate 5 in front of it. Therefore, the guide leg 1 41 and the guide leg 2 51 at the bottom ends of the first clamping plate 4 and the second clamping plate 5 in the fixed connection state are always in a synchronized state. When the first clamping plate 4 and the second clamping plate 5 in the positioning structure at the head end move, under the connection action of the first clamping plate 4 and the second clamping plate 5 in the two adjacent positioning structures, the guide leg 1 41 in the multiple groups of elastic structures can successively squeeze the pressure spring 9 to contract, and the first clamping plate 4 and the second clamping plate 5 in the multiple groups of positioning structures gradually reduce the distance between them, clamping the multiple liquid cooling plates 3 to maintain the stability of the multiple liquid cooling plates 3.

[0029] After the leak detection operation on the liquid cooling plate 3 is completed, the driving cylinder 2 can be operated again to reset the first clamping plate 4 and the guide leg 41 at the front end. Under the action of the elastic potential energy of the pressure spring 9, the first clamping plate 4 and the second clamping plate 5 in the multiple positioning structures are reset one after another, and the spacing between the multiple positioning structures is expanded to facilitate the removal of the liquid cooling plate 3.

[0030] like Figure 5 As shown, an interception ring 11 is provided at one end of the guide rod 8 near the guide leg 1 41. When the guide leg 1 41 squeezes the pressure spring 9 and contracts, the distance between the interception ring 11 and the guide leg 1 41 increases. When the guide leg 1 41 and the first clamping plate 4 are successively reset, the interception ring 11 prevents the guide leg 1 41 from falling off the guide rod 8 due to the elastic potential energy of the pressure spring 9, thereby maintaining the stability of the guide leg 1 41 and the first clamping plate 4. Since the first clamping plates 4 in the rear positioning structure are all fixed to the second clamping plates 5 in front of them, the stability of the first clamping plates 4 in multiple positioning structures can be maintained.

[0031] like Figure 5 、 Figure 6 As shown, connecting brackets 52 are provided on both sides of the second clamping plate 5, and each connecting bracket 52 is provided with a receiving seat 53. When the liquid cooling plate 3 is placed in the relative space between the first clamping plate 4 and the second clamping plate 5, both ends of the liquid cooling plate 3 are located inside the receiving seats 53. The provision of the receiving seats 53 allows the ends of the liquid cooling plate 3 to be exposed outside the positioning structure, facilitating the removal and placement of the liquid cooling plate 3, and allowing multiple liquid cooling plates 3 to be accurately and stably arranged within the box body 1.

[0032] like Figure 5As shown, to maintain the sealing of the liquid cooling plate 3 during helium leak detection, a sealing joint 54 is provided on the receiving seat 53 to seal the opening of the liquid cooling plate 3. When filling the liquid cooling plate 3 with helium, the sealing joint 54 on the filling port of the liquid cooling plate 3 can be removed, and the interface of the filling pipe is connected to the filling port. The remaining openings of the liquid cooling plate 3 are kept closed by the sealing joint 54. During the helium leak detection process, helium is injected into the liquid cooling plate 3. If there are any defects on the surface of the liquid cooling plate 3, helium will enter the interior of the box 1, and the presence of a leak can be determined.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vacuum box tool, comprising a box body (1), characterized in that: The box (1) is provided with a plurality of groups of positioning structures arranged from front to back, each group of the positioning structures is composed of a first clamping plate (4) and a second clamping plate (5), and a liquid cooling plate (3) is provided in the relative space between the first clamping plate (4) and the second clamping plate (5); The invention also includes a driving cylinder (2) arranged in the box body (1), the output end of the driving cylinder (2) is connected to the first clamping plate (4) located at the front end of the multiple positioning structures, and the first clamping plate (4) in the positioning structure at the rear is fixed to the second clamping plate (5) in the positioning structure in front of it. The bottom ends of the first clamping plate (4) and the second clamping plate (5) are respectively provided with a guide leg 1 (41) and a guide leg 2 (51). The guide leg 1 (41) and the guide leg 2 (51) are connected by an elastic structure. When the first clamping plate (4) at the front moves toward the rear, the elastic structure moves synchronously, and the first clamping plate (4) and the second clamping plate (5) in the multiple positioning structures are spaced apart.

2. The vacuum box tooling according to claim 1, characterized in that: The bottom ends of the first clamping plate (4) and the second clamping plate (5) are both provided with sliders (6), the sliders (6) at the rear end are in contact with the inner side wall of the box body (1), and the inner bottom wall of the box body (1) is provided with linear guide rails (7) that are compatible with the sliders (6).

3. The vacuum box tooling according to claim 1, characterized in that: The elastic structure includes a guide rod (8) arranged below the first clamping plate (4) and the second clamping plate (5), and a pressure spring (9) coaxially distributed therewith is provided on the guide rod (8), one end of the pressure spring (9) is fixed on the guide support leg 1 (41), and the guide support leg 1 (41) is sleeved on the guide rod (8), and the other end of the pressure spring (9) is connected to a limit pin (10), and the limit pin (10) is fixed to the end of the guide rod (8) away from the guide support leg 1 (41), and the guide support leg 2 (51) is fixed on the limit pin (10). When the first clamping plate (4) at the front end moves toward the rear, the guide support leg 1 (41) squeezes the pressure spring (9) to contract until the guide support leg 2 (51) and the second clamping plate (5) move.

4. The vacuum box tooling according to claim 3, characterized in that: An interception ring (11) is provided at one end of the guide rod (8) close to the guide leg (41). When the guide leg (41) squeezes the pressure spring (9) to shrink, the distance between the interception ring (11) and the guide leg (41) expands.

5. The vacuum box tooling according to claim 1, characterized in that: Connecting frames (52) are provided on both sides of the second clamping plate (5), and accommodating seats (53) are provided on the connecting frames (52). When the liquid cooling plate (3) is placed in the relative space between the first clamping plate (4) and the second clamping plate (5), both ends of the liquid cooling plate (3) are located inside the accommodating seats (53).

6. The vacuum box tooling according to claim 5, characterized in that: The accommodating seat (53) is provided with a sealing joint (54) for sealing the opening of the liquid cooling plate (3).

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