CN217335256U - Three-phase wire connection airtight structure of hydrogen circulating pump motor - Google Patents

Abstract

The utility model provides a hydrogen circulating pump motor three-phase line wiring airtight structure, includes motor and booster, the motor includes motor casing, be equipped with the motor chamber in the motor casing, stator and rotor are installed to the motor intracavity, the controller casing is installed to the motor casing rear end, be equipped with the controller chamber in the controller casing, the controller intracavity is equipped with the circuit board, seal mounting has a plurality of insulating sheath between motor casing and the controller casing, and seal mounting has metal terminal in every insulating sheath respectively, and metal terminal's one end links firmly with the three-phase line of stator in the motor intracavity, and metal terminal's the other end links firmly with the lead-out wire in the controller intracavity, and the lead-out wire links to each other with the circuit board. The possibility that hydrogen leaks outwards from gaps between rubber sheets and copper wires of the three-phase wires and inside shielding layers of the shielding cables is eliminated; stop hydrogenous mist from outwards leaking between three-phase line and the baffle, promoted the gas tightness performance of hydrogen circulating pump, eliminated inflammable and explosive's potential safety hazard.

Description

Three-phase wire connection airtight structure of hydrogen circulating pump motor

The technical field is as follows:

the utility model relates to a hydrogen circulating pump motor three-phase line wiring airtight structure.

Background art:

the fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the reaction of the fuel cell, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, on one hand, energy is wasted, on the other hand, the environment is polluted, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated, and therefore, the hydrogen needs to be recycled. At present, these hydrogen-containing mixed gases are generally recycled to the fuel cell by a hydrogen circulation pump for recycling.

The gas of inside operation of hydrogen circulating pump contains a large amount of hydrogen, and hydrogen is inflammable explosive gas, therefore the hydrogen circulating pump needs have the gas tightness requirement of self. In order to solve the problem of hydrogen leakage in the working process of the hydrogen circulating pump, the applicant applies for the utility model with the publication number of CN215409282U on 2021, 8/3, which discloses that the three-phase line of the stator directly passes through the communication hole on the partition board to be connected with the circuit board, however, in the specific using process, it is found that the three-phase line of the stator cannot be effectively sealed, and some hydrogen-containing mixed gas leaks outwards from between the three-phase line and the partition board, on the other hand, leaks outwards from the gap between the rubber and the copper wire of the three-phase line and inside the shielding layer of the shielding cable, thus affecting the air tightness of the pump and forming the flammable and explosive potential safety hazard.

Therefore, the problem of airtight three-phase line wiring of a motor in the hydrogen circulating pump becomes a technical problem to be solved urgently in the industry.

The utility model has the following contents:

the utility model discloses a remedy prior art not enough, provide a hydrogen circulating pump motor three-phase line wiring airtight structure, solved in the past partial hydrogenous mist can follow the problem of outside leakage between three-phase line and the baffle, solved in the past partial hydrogenous mist can follow the problem of the outside leakage in gap between the rubber of three-phase line and the copper wire, promoted the airtight performance of hydrogen circulating pump, eliminated the potential safety hazard.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

the utility model provides a hydrogen circulating pump motor three-phase line wiring airtight structure, includes motor and booster, the motor includes motor casing, be equipped with the motor chamber in the motor casing, stator and rotor are installed to the motor chamber, the controller casing is installed to the motor casing rear end, be equipped with the controller chamber in the controller casing, the controller intracavity is equipped with the circuit board, sealed mounting has a plurality of insulating sheath between motor casing and the controller casing, and sealed mounting has metal binding post in every insulating sheath respectively, and metal binding post's one end links firmly with the three-phase line of stator in the motor chamber, and metal binding post's the other end links firmly with the lead-out wire in the controller intracavity, and the lead-out wire links to each other with the circuit board.

And sealing flanges are arranged on the outer surfaces of the insulating sheaths, and sealing rings are respectively arranged between the sealing flanges and the motor shell and between the sealing flanges and the controller shell.

And a sealing ring is arranged between the insulating sheath and the metal binding post.

And one end of the metal binding post, which is close to the motor cavity, is provided with a slot, and the metal binding post is fixedly connected with the three-phase line in an inserting manner through the slot.

And one end of the metal binding post, which is close to the controller cavity, is provided with a binding post which is fixedly connected with the outgoing line through the binding post.

The metal wiring terminal comprises a copper column or an aluminum column.

An end cover is installed at one end of the controller cavity, and a sealing ring is arranged between the end cover and the controller shell.

And one side of the controller cavity is provided with an external connection hole, and a lead of the circuit board is connected with an external power supply through the external connection hole.

The utility model adopts the above technical scheme, have following advantage:

through the design, the three-phase line of the stator can be completely sealed in the cavity of the motor, and the possibility that hydrogen leaks outwards from gaps between rubber sheets and copper wires of the three-phase line and inside a shielding layer of a shielding cable is eliminated; on the other hand, be equipped with sealing flange at insulating sheath's surface, install the sealing washer between sealing flange and the motor casing, between the controller casing respectively, install the sealing washer between insulating sheath and the metal terminal, stopped hydrogeneous mist and outwards leaked between triple phase line and the baffle, promoted hydrogen circulating pump's gas tightness performance, eliminated inflammable and explosive's potential safety hazard.

Description of the drawings:

fig. 1 is a schematic sectional view of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic view of the three-dimensional structure of the insulating sheath and the metal binding post of the present invention.

In the figure, 1, a motor, 2, a supercharger, 3, a motor shell, 4, a motor cavity, 5, a stator, 6, a rotor, 7, a controller shell, 8, a controller cavity, 9, a circuit board, 10, an insulating sheath, 11, a metal binding post, 12, a three-phase line, 13, a leading-out wire, 14, a sealing flange, 15, a sealing ring, 16, a slot, 17, a binding post, 18, an end cover, 19 and an external connection hole.

The specific implementation mode is as follows:

in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

As shown in fig. 1-3, a hydrogen circulation pump motor three-phase line wiring airtight structure comprises a motor 1 and a supercharger 2, wherein the motor 1 comprises a motor casing 3, a motor cavity 4 is arranged in the motor casing 3, a stator 5 and a rotor 6 are arranged in the motor cavity 4, a controller casing 7 is arranged at the rear end of the motor casing 3, a controller cavity 8 is arranged in the controller casing 7, a circuit board 9 is arranged in the controller cavity 8, a plurality of insulating sheaths 10 are hermetically arranged between the motor casing 3 and the controller casing 7, a metal binding post 11 is respectively hermetically arranged in each insulating sheath 10, one end of each metal binding post 11 is fixedly connected with a three-phase line 12 of the stator 5 in the motor cavity 4, the other end of each metal binding post 11 is fixedly connected with an outgoing line 13 in the controller cavity 8, and the outgoing line 13 is connected with the circuit board 9, so that the design is achieved, the three-phase line 12 of the stator 5 can be completely sealed in the motor cavity 4, and the possibility that hydrogen gas leaks outwards from gaps between the rubber and the copper wire of the three-phase line 12 and inside the shielding layer of the shielding cable is avoided.

The surface of insulating sheath 10 is equipped with sealing flange 14, installs sealing washer 15 between sealing flange 14 and motor casing 3, between the controller casing 7 respectively, install sealing washer 15 between insulating sheath 10 and the metal binding post 11, the ring channel is seted up to metal binding post 11's surface, and sealing washer 15 is installed in the ring channel, forms multiple sealing, has stopped hydrogenous mist and has outwards leaked between three-phase line and the motor casing, has promoted hydrogen circulating pump's gas tightness performance, has eliminated inflammable and explosive's potential safety hazard.

One end of the metal binding post 11, which is close to the motor cavity 4, is provided with a slot 16, and after the three-phase line 12 is inserted into the slot 16, the slot 16 is pinched by a tool to be fixedly connected with the three-phase line 12.

One end of the metal binding post 11 close to the controller cavity 8 is provided with a binding post 17 and is fixedly connected with the outgoing line 13 through the binding post 17.

The metal posts 11 comprise copper posts or aluminum posts.

An end cover 18 is arranged at one end of the controller cavity 8, and a sealing ring 15 is arranged between the end cover 18 and the controller shell 7 to prevent hydrogen from leaking outwards.

And an external connection hole 19 is formed in one side of the controller cavity 8, and a lead of the circuit board 9 is connected with an external power supply through the external connection hole 19.

The above-mentioned embodiment can not be regarded as right the utility model discloses the restriction of scope, to the technical person in this technical field, it is right the utility model discloses any alternative improvement or transform that the embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims (8)

1. The utility model provides a hydrogen circulating pump motor three-phase line wiring airtight structure which characterized in that: including motor and booster, the motor includes motor casing, be equipped with the motor chamber in the motor casing, stator and rotor are installed to the motor intracavity, the controller casing is installed to the motor casing rear end, be equipped with the controller chamber in the controller casing, the controller intracavity is equipped with the circuit board, seal mounting has a plurality of insulating sheath between motor casing and the controller casing, and seal mounting has metal terminal in every insulating sheath respectively, and metal terminal's one end links firmly with the three-phase line of stator in the motor intracavity, and metal terminal's the other end links firmly with the lead-out wire in the controller intracavity, and the lead-out wire links to each other with the circuit board.

2. The three-phase wire connection airtight structure of the hydrogen circulating pump motor as claimed in claim 1, wherein: and sealing flanges are arranged on the outer surfaces of the insulating sheaths, and sealing rings are respectively arranged between the sealing flanges and the motor shell and between the sealing flanges and the controller shell.

3. The three-phase wire connection airtight structure of the hydrogen circulating pump motor as claimed in claim 1, wherein: and a sealing ring is arranged between the insulating sheath and the metal binding post.

4. The three-phase wire connection airtight structure of the hydrogen circulating pump motor as claimed in claim 1, wherein: and one end of the metal binding post, which is close to the motor cavity, is provided with a slot, and the metal binding post is fixedly connected with the three-phase line in an inserting manner through the slot.

5. The three-phase wire connection airtight structure of the hydrogen circulating pump motor as claimed in claim 1, wherein: and one end of the metal binding post, which is close to the controller cavity, is provided with a binding post which is fixedly connected with the outgoing line through the binding post.

6. The three-phase wire connection airtight structure of the hydrogen circulation pump motor according to claim 1, characterized in that: the metal wiring terminal comprises a copper column or an aluminum column.

7. The three-phase wire connection airtight structure of the hydrogen circulating pump motor as claimed in claim 1, wherein: an end cover is installed at one end of the controller cavity, and a sealing ring is arranged between the end cover and the controller shell.

8. The three-phase wire connection airtight structure of the hydrogen circulation pump motor according to claim 1, characterized in that: and one side of the controller cavity is provided with an external connection hole, and a lead of the circuit board is connected with an external power supply through the external connection hole.

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