Battery withstand voltage testing mechanism
Technical Field
The utility model relates to a battery test field especially relates to a withstand voltage test mechanism of battery.
Background
The problem of insufficient weld strength may exist after the aluminum shell of the battery is processed, and the insufficient weld strength may cause air leakage and electrolyte leakage, thereby seriously affecting the service life and the service performance of the battery. Therefore, after the battery top cover is welded with the aluminum shell and the top cover is welded with the sealing nail, the pressure resistance and the sealing performance of the welding seam need to be detected.
The existing method for conveniently and rapidly testing the voltage resistance of the battery comprises the following steps: the anti-explosion valve of the battery top cover is poked to be broken, the battery is placed into the pressure-resistant test fixture, then the sealing connecting piece is locked on the pressure-resistant test fixture, the sealing connecting piece is made to press the anti-explosion valve tightly, sealing connection between the sealing connecting piece and the anti-explosion valve is achieved, meanwhile, the sealing connecting piece is communicated with the inside of the battery, and the sealing connecting piece is further communicated with an air pipe. Afterwards with battery and withstand voltage test fixture submergence in aqueous, fill into high-pressure compressed gas in the battery through the trachea, maintain battery internal pressure certain time, inspect the resistance to pressure and the leakproofness of battery, in case the welding seam that has the battery is torn by atmospheric pressure or the welding seam leakproofness is not enough, can observe in aqueous that there is the bubble to emit on the welding seam surface, thereby judge the welding seam defect, if maintain the inside certain time of battery, no bubble emits on the battery surface, then judge that withstand voltage tests is qualified, the welding seam welding is good. However, in the above-mentioned technology, the sealing connection member needs to be locked on the pressure-resistant test fixture, and then the explosion-proof valve can be pressed by the sealing connection member, but the steps of locking the sealing connection member and pressing the explosion-proof valve by using the sealing connection member are numerous and complicated, so the operation convenience is seriously affected, the whole test time is too long, and the test efficiency is affected.
Therefore, a battery withstand voltage testing mechanism with simple and convenient testing and high testing efficiency is needed to overcome the above defects.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a test is simple and convenient and high battery withstand voltage accredited testing organization of efficiency of software testing.
In order to achieve the above object, the utility model discloses a withstand voltage testing mechanism of battery include the frame, install in battery anchor clamps in the frame, compress tightly drive arrangement and with the battery that battery anchor clamps pressed from both sides is aligned's sealing member, the sealing member offer be used for with the gas transmission chamber of outside high pressurized air source intercommunication and with the interface that the gas transmission chamber is linked together, compress tightly drive arrangement install in the frame, compress tightly drive arrangement's output with sealing member be assembled between/be connected, the sealing member is in compress tightly drive arrangement's about doing down and be close to or keep away from the battery motion that battery anchor clamps pressed from both sides, so that the sealing member correspondingly covers in or removes the explosion-proof valve of battery that battery anchor clamps pressed from.
Preferably, the utility model discloses a withstand voltage test mechanism of battery still includes the connecting pipe, seted up in the connecting pipe air guide chamber and with the air inlet of air guide chamber intercommunication, compress tightly drive arrangement's output with the first end assembled connection of connecting pipe, the second end of connecting pipe with sealing member assembled connection, the air guide chamber with the gas transmission chamber is linked together.
Preferably, a seal ring is mounted on the seal member so as to circumferentially surround the mating port.
Preferably, a guide piece is installed on the machine frame, the guide piece is located between the pressing driving device and the sealing piece, a guide through hole is formed in the guide piece, and the connecting pipe is movably arranged in the guide through hole in a penetrating mode.
Preferably, the pressing drive device is located above the sealing member, and the sealing member is located directly above the battery clamp.
Preferably, the utility model discloses a withstand voltage test mechanism of battery still includes air-vent valve and solenoid valve, the air inlet of connecting pipe communicate in the gas outlet of air-vent valve, the solenoid valve with the income gas port of air-vent valve communicates each other.
Preferably, the battery clamp includes lead screw nut, movable clamp plate and solid fixed splint, the lead screw nut install in the frame, the output of lead screw nut with movable splint be assembled between/be connected between, gu fixed splint install in the frame and with movable splint are just to arranging, movable splint fixed splint with the frame encloses a tight space of clamp jointly, the sealing member is located directly over the tight space of clamp.
Preferably, an auxiliary pressing structure is mounted on an upper end of at least one of the movable clamping plate and the fixed clamping plate, and the auxiliary pressing structure protrudes into the clamping space.
Preferably, the pressing driving device is a cylinder, a hydraulic cylinder or a linear motor.
Preferably, the rack comprises a horizontal bracket and a vertical bracket mounted on the horizontal bracket, the battery clamp is mounted on the horizontal bracket, and the pressing driving device is located above the battery clamp and mounted on the vertical bracket.
Compared with the prior art, because the battery pressure-resistant testing mechanism of the utility model also comprises a pressing driving device and a sealing element which is aligned with the battery clamped by the battery clamp, the sealing element is provided with a gas transmission cavity which is communicated with an external high-pressure gas source and a butt joint which is communicated with the gas transmission cavity, the pressing driving device is arranged on the frame, the output end of the pressing driving device is connected with the sealing element in an assembling way, the sealing element is driven by the pressing driving device to move close to or far away from the battery clamped by the battery clamp so as to lead the sealing element to correspondingly cover or move away from the explosion-proof valve of the battery clamped by the battery clamp, therefore, the pressing driving device can be used for rapidly driving the sealing element to move so as to rapidly cover or move away the explosion-proof valve of the battery clamped by the battery clamp, therefore, the practical battery pressure resistance testing mechanism is simple and convenient to operate, improves the testing efficiency and greatly simplifies the structure of the battery pressure resistance testing mechanism.
Drawings
Fig. 1 is the front view of the battery pressure resistance testing mechanism of the present invention when the pressing driving device drives the sealing member to press the battery explosion-proof valve.
Fig. 2 is the utility model discloses compress tightly among the withstand voltage test mechanism of battery drive arrangement and order about the spatial structure sketch map when sealing member presses to battery explosion-proof valve.
Fig. 3 is a schematic view of the three-dimensional structure of the battery withstand voltage testing mechanism of the present invention.
Fig. 4 is a schematic perspective view of a sealing member in the battery withstand voltage testing mechanism of the present invention.
Fig. 5 is a schematic view of the three-dimensional structure of the connection pipe in the battery voltage withstand test mechanism of the present invention.
Detailed Description
In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.
As shown in fig. 1 to 4, the battery pressure withstanding testing mechanism 100 of the present invention includes a frame 10, a battery clamp 20 mounted on the frame 10, a pressing driving device 30, and a sealing member 40 aligned with a battery 90 clamped by the battery clamp 20, wherein the sealing member 40 has a gas transmission chamber 41 for communicating with an external high pressure gas source and a butt joint 42 communicating with the gas transmission chamber 41, the pressing driving device 30 is mounted on the frame 10, an output end of the pressing driving device 30 is connected to the sealing member 40, the sealing member 40 is driven by the pressing driving device 30 to move close to or away from the battery 90 clamped by the battery clamp 20, so that the sealing member 40 correspondingly covers or moves away from an explosion-proof valve 91 of the battery 90 clamped by the battery clamp 20, so that the pressing driving device 30 can drive the sealing member 40 to move rapidly, so that the sealing member 40 quickly covers or moves away from the explosion-proof valve 91 of the battery 90 clamped by the battery clamp 20, therefore, the battery voltage withstanding testing mechanism 100 of the utility model is simple and convenient to operate, improves the testing efficiency, and greatly simplifies the structure of the battery voltage withstanding testing mechanism 100. Specifically, compress tightly drive arrangement 30 and be located the top of sealing member 40, sealing member 40 is located battery anchor clamps 20 directly over, so the utility model discloses a structural arrangement of battery withstand voltage test mechanism 100 is reasonable for it can be faster to compress tightly drive sealing member 40 lid in battery anchor clamps 20 and press from both sides explosion-proof valve 91 of battery 90. In order to more stably and firmly mount the pressing driving device 30 and the battery clamp 20, the frame 10 includes a horizontal bracket 11 and a vertical bracket 12 mounted on the horizontal bracket 11, the battery clamp 20 is mounted on the horizontal bracket 11, and the pressing driving device 30 is located above the battery clamp 20 and mounted on the vertical bracket 11. For example, the pressing driving device 30 is an air cylinder to rapidly drive the connecting pipe 50 to move, but the pressing driving device 30 may also be a hydraulic cylinder or a linear motor to drive the connecting pipe 50 to move according to actual needs, so the disclosure is not limited thereto. More specifically, the following:
as shown in fig. 1 to 5, the battery withstand voltage testing mechanism 100 of the present invention further includes a connecting pipe 50, a pressure regulating valve 60 and a solenoid valve 70, an air guide cavity 51 and an air inlet 52 communicated with the air guide cavity 51 are provided in the connecting pipe 50, an output end of the driving device 30 and a first end of the connecting pipe 50 are assembled, a second end of the connecting pipe 50 is assembled with the sealing element 40, the air guide cavity 51 is communicated with the air transmission cavity 41, and the connection between the driving device 30 and the sealing element 40 is more stable and reliable through the connection with the connecting pipe 50. Specifically, a guide 80 is installed on the frame 10, the guide 80 is located between the pressing driving device 30 and the sealing element 40, a guide through hole 81 is formed in the guide 80, and the connecting pipe 50 is movably arranged in the guide through hole 81 in a penetrating manner, so that the connecting pipe 50 is prevented from swinging to a large extent in the moving process, and the connecting pipe 50 is made to move more stably and smoothly. More specifically, a seal ring 43 is mounted on the seal member 40 so as to circumferentially surround the abutment 42, so that the seal between the seal member 40 and the explosion-proof valve 91 is more effective. In order to facilitate the automatic control of the air path and the adjustment of the air pressure inside the battery 90, the air inlet 52 of the connection pipe 50 is connected to the air outlet of the pressure regulating valve 60, and the electromagnetic valve 70 is connected to the air inlet of the pressure regulating valve 60.
As shown in fig. 1 to 3, the battery clamp 20 includes a screw nut 21, a movable clamping plate 22 and a fixed clamping plate 23, the screw nut 21 is mounted on the frame 10, an output end of the screw nut 21 is assembled with the movable clamping plate 22, the fixed clamping plate 23 is mounted on the frame 10 and is arranged opposite to the movable clamping plate 22, the fixed clamping plate 23 and the frame 10 together enclose a clamping space 24, and the sealing member 40 is located right above the clamping space 24, so that the battery clamp 20 has a simple structure and is easy to mount and arrange. Specifically, the upper ends of the movable clamping plate 22 and the fixed clamping plate 23 are respectively provided with an auxiliary pressing structure 25, the auxiliary pressing structure 25 protrudes into the clamping space 24, and the auxiliary pressing structure 25 is arranged to prevent the top cover of the battery 90 from deforming during the gas injection process to cause sealing failure. Preferably, the input end of the screw nut 21 may be connected to a driver (not shown), and the driver drives the screw nut 21 to move, or of course, the screw nut 21 may be driven by human hand, so that the present invention is not limited thereto, and the driver is, for example, a motor.
The working principle of the battery withstand voltage testing mechanism 100 of the present invention is explained with reference to fig. 1 to 5: when the battery 90 is detected, the battery 90 is placed in the clamping space 24, the screw rod nut 21 is driven to move, the moving clamping plate 22 is driven by the moving screw rod nut 21 to move close to the fixed clamping plate 23, so that the battery 90 is positioned and clamped, and the auxiliary pressing structures 25 are pressed on two opposite sides of the top cover of the battery 90. The pressing driving device 30 is started to drive the sealing element 40 to move downwards to cover the explosion-proof valve 91 of the battery 90, the sealing cavity 41 in the sealing element 40 is communicated with the interior of the battery 90 through the explosion-proof valve 91 which is inserted in advance, the sealing element 40 is in sealing connection with the explosion-proof valve 91 under the cooperation of the sealing ring 43, the battery 90 is immersed in water after connection, the electromagnetic valve 70 and the pressure regulating valve 60 are opened, and compressed gas of an external high-pressure gas source is charged into the interior of the battery 90. The internal pressure of the battery 90 is maintained for a certain time, the pressure resistance and the sealing performance of the battery 90 are tested, once the welding seam of the battery 90 is torn by air pressure or the sealing performance of the welding seam is insufficient, bubbles on the surface of the welding seam can be observed to emerge in water, so that the pressure resistance test is judged to be poor, the welding seam is defective after welding, if the battery 90 does not emerge in the certain pressure time of the battery 90, the pressure resistance test is judged to be qualified, and the welding seam is welded well. The working principle is as described above.
Compared with the prior art, because the battery pressure withstanding test mechanism 100 of the present invention further includes the pressing driving device 30 and the sealing member 40 aligned with the battery 90 clamped by the battery clamp 20, the sealing member 40 is provided with the gas transmission cavity 41 for communicating with the external high pressure gas source and the butt joint 42 communicated with the gas transmission cavity 41, the pressing driving device 30 is installed on the frame 10, the output end of the pressing driving device 30 is connected with the sealing member 40 in an assembling manner, the sealing member 40 is driven by the pressing driving device 30 to move close to or away from the battery 90 clamped by the battery clamp 20, so that the sealing member 40 correspondingly covers or moves away from the explosion-proof valve 91 of the battery 90 clamped by the battery clamp 20, the pressing driving device 30 can be used to drive the sealing member 40 to move rapidly, so that the sealing member 40 quickly covers or moves away from the explosion-proof valve 91 of the battery 90 clamped by the battery clamp 20, so that the battery pressure withstanding test mechanism 100 of the present invention is simple and, the testing efficiency is improved, and the structure of the battery withstand voltage testing mechanism 100 is greatly simplified.
The above disclosure is only a preferred embodiment of the present invention, and the scope of the claims of the present invention should not be limited thereby, and all the equivalent changes made in the claims of the present invention are intended to be covered by the present invention.