CN213877848U - Vacuum filling equipment for capacitor - Google Patents

Abstract

The utility model discloses a condenser vacuum perfusion equipment for with the sealed mode encapsulation of gluing of condenser core group in condenser shell, horizontal elevating platform is arranged in the vacuum chamber in, the elevating platform for placing condenser shell is connected with lift drive and can be driven by lift drive and rise and descend, be used for installing condenser core group the installed part is arranged in the vacuum chamber and is located the top of elevating platform, the apron that can seal and can open is installed at vacuum chamber's top. The utility model discloses can realize pouring into sealed glue under the outdoor ordinary pressure of vacuum chamber, get rid of sealed glue interior air and time capacitor core group in the vacuum chamber and arrange in capacitor case by sealed purpose that glues solidification encapsulation, not only realize the vacuum and pour the purpose, reduced the sealed technology degree of difficulty and the equipment manufacturing cost who glues of vacuum pouring moreover to solve the problem that current vacuum pouring mode pollutes capacitor case easily, promoted sealed glue filling quality and production efficiency of capacitor.

Description

Vacuum filling equipment for capacitor

Technical Field

The utility model relates to a sealed gluey filling equipment of condenser especially relates to a condenser vacuum filling equipment.

Background

The capacitor is generally encapsulated and shaped by adopting a sealant, and the sealant generally adopts epoxy resin, so that the encapsulating epoxy resin is the most extensive encapsulating form in the production of the capacitor.

The prior epoxy resin pouring operation is carried out in normal atmospheric pressure, the interior of the capacitor cannot be completely filled with epoxy resin, and some air bubbles can remain, so that the sealing and moisture-proof performance of the capacitor is influenced.

In order to eliminate bubbles generated in the encapsulating process, part of manufacturers adopt a mode of injecting epoxy resin under the vacuum condition to eliminate the internal bubbles of the capacitor, namely, the capacitor core group is firstly installed in the capacitor shell, then the capacitor shell provided with the capacitor core group is arranged in a vacuum chamber, and then the liquid epoxy resin is sent into the capacitor shell through an injecting pipeline.

However, the conventional vacuum infusion method has the following problems:

(1) pressure difference exists between the vacuum chamber and the pipeline, epoxy resin splashing phenomenon is easy to occur at the moment of opening the filling head, and the splashed epoxy resin can pollute the shell of the capacitor, so that products are scrapped;

(2) epoxy can the mobility worsen under vacuum state, and the back of filling is accomplished, though electrically controlled valve has closed, still can have a small amount of epoxy adhesion on the filling head, when filling head moved to next product, the epoxy that adheres to on the filling head can drip at random on the capacitor case, pollutes the capacitor case, leads to the product to scrap.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can reach the vacuum perfusion effect, can prevent capacitor case pollution's condenser vacuum perfusion equipment again in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a condenser vacuum perfusion equipment for seal capacitor core group in capacitor case with the sealed mode of gluing of pouring into, it is right including real empty room with being used for real empty room evacuation's vacuum pump, still include elevating platform, lift drive and installed part, it is horizontal the elevating platform is arranged in the vacuum chamber, be used for placing capacitor case the elevating platform with lift drive connects and can by lift drive rises and descends, is used for the installation capacitor core group the installed part is arranged in the vacuum chamber and is located the top of elevating platform, the apron that can seal and can open is installed at real empty room's top.

In the structure, the lifting platform is used for placing the capacitor shell and driving the capacitor shell to lift together, and a positioning device for positioning the capacitor shell, such as a positioning disc or a positioning mark, can be arranged on the lifting platform; the lifting driving device is used for driving the lifting platform to move up and down, and can adopt a manual control mode and an automatic control mode; the installed part is used for installing capacitor core group temporarily, and its position corresponds with capacitor case, and capacitor case rises the back under the drive of elevating platform, installs capacitor core group on the installed part and just arranges capacitor case in, the embedment of being convenient for.

Preferably, in order to facilitate processing, assembly, operation and accurate control of lifting, the lifting driving device includes a lifting motor, a speed reducer, a lead screw, a nut and a bearing, the lifting motor is installed below the vacuum chamber, a rotating shaft of the lifting motor is connected with an input end of the speed reducer, an output end of the speed reducer is engaged with a lower vertical section of the lead screw and the lead screw can vertically move while rotating, the nut is fixedly installed at the bottom of the vacuum chamber, an upper end of the lead screw passes through the nut and the bottom of the vacuum chamber and then is connected with the bearing, and the bearing is installed at the bottom of the lifting table. If automatic control is required, the control input end of the lifting motor and the control input end of the vacuum pump are correspondingly connected with the control output end of the controller.

Preferably, the shaft of the lifting motor has a horizontal axis and the speed reducer is a turbine speed reducer in order to make the structure compact, reduce the size, and save space.

Preferably, in order to enable the capacitor shell and the capacitor core group to be aligned accurately, the bearing is located at the center of the lifting table, one or more positioning discs or positioning marks for positioning and placing the capacitor shell are arranged on the lifting table, and the mounting part is provided with one-to-one corresponding mounting marks.

As preferred, for the convenience of getting fast the installed part and improving the lift mobility stability of elevating platform, upper portion both sides in the vacuum chamber are equipped with fixed horizontal pole respectively, the installed part is two respectively arranged in for bar shaped plate and its both ends on the fixed horizontal pole, two the lower extreme of fixed horizontal pole with install a vertical guide bar between the interior bottom in vacuum chamber respectively, on the elevating platform with two the position that the guide bar corresponds is equipped with vertical guide through hole respectively, two the guide bar passes two respectively guide through hole. Can set up conventional location structure between installed part and the fixed horizontal pole, like reference column and positioning groove etc. can fix a position the connection fast, can take off the installed part fast again.

Preferably, in order to rapidly restore the vacuum chamber to the normal pressure and accurately know the real-time air pressure in the vacuum chamber, an air inlet valve for filling air into the vacuum chamber and an air pressure gauge for detecting the air pressure in the vacuum chamber are installed at one side of the vacuum chamber. If automatic control is needed, the control input end of the air inlet valve is correspondingly connected with the control output end of the controller, and the signal output end of the air pressure gauge is correspondingly connected with the signal input end of the controller.

Preferably, in order to more reliably control the degree of vacuum in the vacuum chamber, a vacuum tube is connected between the vacuum chamber and the vacuum pump, and a vacuum valve is mounted on the vacuum tube. And if automatic control is required, correspondingly connecting the control input end of the vacuum valve with the control output end of the controller.

Preferably, in order to facilitate observation of the working condition in the vacuum chamber, a transparent plate for observation in the vacuum chamber is arranged in the middle of the cover plate.

The beneficial effects of the utility model reside in that:

the utility model discloses an at vacuum chamber interior installation elevating platform and installed part, realize the lift control to the elevating platform through lift drive arrangement, can realize pouring sealed glue under the outdoor ordinary pressure of vacuum, get rid of sealed glue interior air and make capacitor core group arrange in capacitor case in sealed purpose of gluing the encapsulation in the vacuum chamber, the vacuum that has not only realized pours the purpose, and reduced the sealed technology degree of difficulty and the equipment manufacturing cost of gluing of vacuum pouring, and solved the problem that current vacuum pouring mode pollutes capacitor case easily, sealed glue filling quality and production efficiency of condenser has been promoted.

Drawings

Fig. 1 is one of schematic front view structural diagrams of the vacuum filling apparatus for capacitor according to the present invention;

fig. 2 is one of schematic structural diagrams of a capacitor vacuum filling apparatus according to the present invention in a front view;

fig. 3 is a second schematic view of the capacitor vacuum filling apparatus according to the present invention;

fig. 4 is a second schematic view of the vacuum filling apparatus for capacitor according to the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-4, the vacuum filling apparatus for capacitor of the present invention is used for packaging the capacitor core assembly 20 in the capacitor casing 22 in a manner of filling the sealant 21, including the vacuum chamber 6 and the vacuum pump 17 for vacuumizing the vacuum chamber 6, further including the elevating platform 7, the elevating driving device and the mounting member 9, the horizontal elevating platform 7 is disposed in the vacuum chamber 6, the elevating platform 7 for placing the capacitor casing 22 is connected with the elevating driving device and can be driven by the elevating driving device to ascend and descend, the mounting member 9 for mounting the capacitor core assembly 20 is disposed in the vacuum chamber 6 and above the elevating platform 7, the cover plate 4 which can be sealed and opened is mounted on the top of the vacuum chamber 6; preferably, the lifting driving device comprises a lifting motor 10, a speed reducer 15, a screw rod 13, a nut 14 and a bearing 12, the lifting motor 10 is installed below the vacuum chamber 6, a transverse rotating shaft of the lifting motor 10 is connected with an input end of the turbine speed reducer 15, an output end of the turbine speed reducer 15 is meshed with a lower section of the vertical screw rod 13, the screw rod 13 can rotate and vertically move, the nut 14 is fixedly installed at the bottom of the vacuum chamber 6, the upper end of the screw rod 13 penetrates through the nut 14 and the bottom of the vacuum chamber 6 and then is connected with the bearing 12, and the bearing 12 is installed at the bottom of the lifting table 7; the bearing 12 is located at the center of the lifting table 7, one (one in fig. 1) or a plurality (three in fig. 4) of positioning discs 11 (which can also be positioning marks) for positioning and placing the capacitor shell 22 are arranged on the lifting table 7, and the mounting pieces 9 are provided with one-to-one corresponding mounting marks (not shown); two sides of the upper part in the vacuum chamber 6 are respectively provided with a fixed cross rod 3, the mounting part 9 is a strip-shaped plate, two ends of the mounting part are respectively arranged on the two fixed cross rods 3, a vertical guide rod 5 is respectively arranged between the lower ends of the two fixed cross rods 3 and the inner bottom of the vacuum chamber 6, vertical guide through holes are respectively arranged on the lifting platform 7 at positions corresponding to the two guide rods 5, and the two guide rods 5 respectively penetrate through the two guide through holes; an air inlet valve 2 for filling air into the vacuum chamber 6 and an air pressure gauge 1 for detecting the air pressure in the vacuum chamber 6 are arranged on one side of the vacuum chamber 6; a vacuum tube is communicated and connected between the vacuum chamber 6 and the vacuum pump 17, and a vacuum valve 16 is arranged on the vacuum tube; the middle part of the cover plate 4 is provided with a transparent plate 8 for observing the inside of the vacuum chamber 6.

Also shown are support legs 18 provided at the bottom of the vacuum chamber 6, and also shown in fig. 2 and 3 are leads 19 on a capacitor core pack 20, both of conventional compliant construction.

The preferred method of filling used in the vacuum filling apparatus for capacitors of the present invention is described in detail below with reference to fig. 1-4, but the following method is not the only method and object of the present invention.

The preferred filling method that condenser vacuum filling equipment adopted includes following steps:

step 1, outside a vacuum chamber 6, injecting sealant 21 into one or more capacitor shells 22 by adopting conventional injection equipment (such as a dispenser), wherein the volume of the injected sealant 21 is slightly smaller than the difference between the volume of the inner cavity of the capacitor shell 22 and the volume of the capacitor core group 20;

step 2, opening the cover plate 4, taking out the mounting piece 9, placing the capacitor shell 22 into which the sealant 21 is injected into the corresponding positioning disc 12 on the lifting table 7 in the non-vacuum chamber 6, and enabling the opening of the capacitor shell 22 to be upward, or placing the capacitor shell 22 into the positioning disc 12 and then placing the capacitor shell 22 and the positioning disc together at the corresponding position on the lifting table 7;

step 3, connecting one or more capacitor core groups 20 with the leads 19 welded to the corresponding positions of the mounting pieces 9 through the leads 19, specifically, realizing temporary connection in a tape bonding mode, namely bonding the leads 19 on the mounting pieces 9 and enabling the capacitor core groups 20 to be positioned below the mounting pieces 9, and then installing the mounting pieces 9 in the vacuum chamber 6 to enable the capacitor core groups 20 to be positioned right above the capacitor shells 22 and to be in one-to-one correspondence;

step 4, closing the cover plate 4 and the air inlet valve 2, starting the vacuum pump 17 until the vacuum degree in the vacuum chamber 6 reaches a set value, and closing the vacuum pump 17;

step 5, keeping the vacuum degree in the vacuum chamber 6, wherein the keeping time is based on the fact that air in the sealant 21 in the capacitor shell 22 is fully exhausted;

step 6, after air in the sealant 21 is discharged, starting the lifting motor 10, reducing the speed through the turbine speed reducer 15, driving the lead screw 13 to rotate, moving the lead screw 13 upwards while rotating due to the fixation of the nut 14, driving the lifting platform 7 to ascend until the capacitor core group 20 is placed in the sealant 21 in the corresponding capacitor shell 22 and reaches a preset position, closing the lifting motor 10, stopping the lifting platform 7 from ascending, and enabling the lower end of the capacitor core group 20 to be just contacted with the inner bottom of the capacitor shell 22;

step 7, keeping the state of the step 6 until the sealant 21 fully flows and completely covers the capacitor core assembly 20;

step 8, opening the air inlet valve 2, recovering the air pressure in the vacuum chamber 6 to atmospheric pressure, opening the cover plate 4, removing the connection between the capacitor core group 20 and the mounting piece 9, namely removing the adhesive tape, and taking the capacitor shell 22 out of the vacuum chamber 6 to obtain the encapsulated capacitor;

9, starting the lifting motor 10 to rotate reversely, so that the lifting platform 7 descends to an initial position, and finishing the pouring operation; and (4) if other capacitors need to be continuously filled, directly turning to the step 1, otherwise, placing the mounting piece 9 on the fixed cross rod 3, covering the cover plate 4, and waiting for the next filling operation.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims (8)

1. The utility model provides a condenser vacuum infusion equipment for with sealed mode encapsulation of gluing of pouring into of condenser core group in condenser shell, including vacuum chamber and be used for right the vacuum pump of vacuum chamber evacuation, its characterized in that: still include elevating platform, lift drive and installed part, it is horizontal the elevating platform is arranged in the vacuum chamber, be used for placing capacitor case the elevating platform with lift drive connects and can by lift drive rises and descends, is used for the installation capacitor core group the installed part is arranged in the vacuum chamber and is located the top of elevating platform, the apron that can seal and can open is installed at the top in real empty chamber.

2. The vacuum capacitor fill apparatus of claim 1, wherein: the lifting driving device comprises a lifting motor, a speed reducer, a lead screw, a nut and a bearing, the lifting motor is installed below the vacuum chamber, a rotating shaft of the lifting motor is connected with an input end of the speed reducer, an output end of the speed reducer is meshed with a vertical lower section of the lead screw and the lead screw can vertically move while rotating, the nut is fixedly installed at the bottom of the vacuum chamber, the upper end of the lead screw penetrates through the nut and the bottom of the vacuum chamber and then is connected with the bearing, and the bearing is installed at the bottom of the lifting platform.

3. The vacuum capacitor fill apparatus of claim 2, wherein: the axial direction of the rotating shaft of the lifting motor is horizontal, and the speed reducer is a turbine speed reducer.

4. The vacuum capacitor fill apparatus of claim 2, wherein: the bearing is located the central point of elevating platform puts, be equipped with one or more on the elevating platform and be used for the location to place condenser case's positioning disk or location sign, be equipped with the installation sign of one-to-one on the installed part.

5. The vacuum capacitor filling apparatus according to any one of claims 1 to 4, wherein: the vacuum chamber is characterized in that two fixed cross rods are respectively arranged on two sides of the upper portion in the vacuum chamber, the mounting piece is a strip-shaped plate, two ends of the strip-shaped plate are respectively arranged on the fixed cross rods, two vertical guide rods are respectively arranged between the lower ends of the fixed cross rods and the inner bottom of the vacuum chamber, vertical guide through holes are respectively arranged at positions, corresponding to the two guide rods, on the lifting table, and the two guide rods respectively penetrate through the two guide through holes.

6. The vacuum capacitor filling apparatus according to any one of claims 1 to 4, wherein: and one side of the vacuum chamber is provided with an air inlet valve for filling air into the vacuum chamber and an air pressure gauge for detecting the air pressure in the vacuum chamber.

7. The vacuum capacitor filling apparatus according to any one of claims 1 to 4, wherein: and a vacuum tube is communicated and connected between the vacuum chamber and the vacuum pump, and a vacuum valve is installed on the vacuum tube.

8. The vacuum capacitor filling apparatus according to any one of claims 1 to 4, wherein: and a transparent plate for observing the inside of the vacuum chamber is arranged in the middle of the cover plate.

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