High-voltage-resistant wiring rack for shielding motor

Abstract

The utility model discloses a high-voltage-resistant wiring rack for a shielding motor, which belongs to the technical field of shielding pump motors and comprises a flange plate, a plurality of through holes are arranged on the flange plate, outer connecting grooves are respectively arranged on the inner walls of the plurality of through holes, wiring copper columns are respectively sleeved in the plurality of through holes, and the wiring copper columns are connected with the flange plate. The outer side of the middle end of the wiring copper column is provided with an inner connecting groove. According to the utility model, the flange plate and the wiring copper column are sintered and connected through the sintered glass sleeve, higher water pressure can be borne, the wiring rack can be used in a high-temperature operation environment, and the outer connecting ring at the side part of the sintered glass sleeve is fixedly sleeved in the outer connecting groove at the inner wall of the through hole, so that the wiring rack is convenient to use. And the inner connecting ring on the inner side of the sintered glass sleeve is fixedly sleeved in the inner connecting groove on the outer side of the wiring copper column, so that the stability of the wiring copper column and the sintered glass sleeve on the flange plate is ensured, the sealing performance is ensured, and the practicability is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shielded pump motor, more particularly to a high pressure resistant terminal block for shielded motor. BACKGROUND

[0002] The shielded electric pump is a leakless pump composed of a shielded motor and a pump, and the shielded electric pump is a power equipment for conveying, which mainly comprises a pump body, an impeller, a stator, a rotor, front and rear bearings and a thrust disc and other components, the stator and the rotor are isolated by a non-magnetic corrosion-resistant thin-walled sleeve, the rotor is supported by the front and rear bearings and immersed in the conveying medium, so that any type of dynamic seal is not needed to prevent the outward leakage of the conveying medium, and the terminal block is needed to fix the wires in the shielded electric pump.

[0003] Through the search, the utility model patent with publication number CN202217814U discloses a kind of terminal block for shielded pump, including flange plate, it is characterized in that: the flange plate is provided with terminal post, terminal post is provided with fixed nut at both ends, terminal post is sheathed with insulating layer, and the contact part of insulating layer and flange plate is provided with bushing;This is a kind of shielded pump terminal with simple structure, ingenious design, low cost, can meet the pressure requirement, and good sealing performance.

[0004] But the above-mentioned patent still has the following deficiencies: only applicable to the use environment with very low working condition pressure, limited pressure bearing capacity, unable to bear the pressure above 1Mpa, when the shielded pump shield leaks, if pipeline system pressure exceeds 1Mpa, the pressure bearing capacity of this structure terminal block will fail, liquid will be sprayed from terminal post and sealing resin of terminal block, leading to accident. For this reason, we propose a kind of high pressure resistant terminal block for shielded motor. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model aims to provide a high pressure resistant terminal block for shielded motor.

[0006] To solve the above problems, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of high-pressure resistant terminal frame for shielding motor, including flange, which is provided with a plurality of through holes, the inner wall of a plurality of the through holes is respectively provided with outer connecting groove, a plurality of the through holes are respectively provided with terminal copper column, the outside of the terminal copper column middle end is provided with inner connecting groove, the top of the terminal copper column extends to the top of flange and is provided with upper threaded column, the outside of the upper threaded column is provided with upper connecting mechanism, the bottom of the terminal copper column extends to the bottom of flange and is provided with lower threaded column, the outside of the lower threaded column is provided with lower connecting mechanism, the inner cavity of the through hole and the outside of terminal copper column are fixedly sleeved with sintered glass sleeve, the inner wall of the sintered glass sleeve is provided with inner connecting ring, the end of the inner connecting ring is fixedly sleeved to the inner cavity of inner connecting groove, the outside of the sintered glass sleeve is provided with outer connecting ring, the end of the outer connecting ring is fixedly sleeved to the inner cavity of outer connecting groove.

[0008] As a preferred scheme of the utility model, the upper connecting mechanism includes upper pressure-resistant glass cover threadedly installed on the outside of the upper threaded column, the top surface of the upper pressure-resistant glass cover is provided with a liquid injection hole, the top end of the upper pressure-resistant glass cover is provided with a first threaded hole, the first threaded hole is threadedly sleeved with the upper threaded column, and the bottom surface of the upper pressure-resistant glass cover is attached to the top surface of the flange.

[0009] As a preferred scheme of the utility model, the lower connecting mechanism includes lower pressure-resistant glass cover threadedly installed on the outside of the lower threaded column, the bottom surface of the lower pressure-resistant glass cover is provided with a second threaded hole, the second threaded hole is threadedly sleeved with the lower threaded column, and the top surface of the lower pressure-resistant glass cover is attached to the bottom surface of the flange.

[0010] As a preferred scheme of the utility model, the inner diameter of the upper pressure-resistant glass cover is equal to the inner diameter of the through hole.

[0011] As a preferred scheme of the utility model, the inner diameter of the lower pressure-resistant glass cover is equal to the inner diameter of the through hole.

[0012] As a preferred scheme of the utility model, the outer side surface of the sintered glass sleeve is connected with the inner wall of the upper pressure-resistant glass cover, and the outer side surface of the sintered glass sleeve is connected with the inner wall of the lower pressure-resistant glass cover.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) The utility model discloses a sintered glass sleeve is used for connecting the flange plate and the copper column, and the sintered glass sleeve can bear higher water pressure, and the wiring rack can be used in high temperature environment, and the outer connecting ring of the sintered glass sleeve is fixed in the outer connecting groove of the through hole, and the inner connecting ring of the sintered glass sleeve is fixed in the inner connecting groove of the copper column, so that the stability of the copper column and the sintered glass sleeve on the flange plate is ensured, and the sealing property is ensured, and the utility model has good practicability.

[0015] (2) The utility model discloses a sintered glass sleeve is used for connecting the flange plate and the copper column, and the sintered glass sleeve can bear higher water pressure, and the wiring rack can be used in high temperature environment, and the outer connecting ring of the sintered glass sleeve is fixed in the outer connecting groove of the through hole, and the inner connecting ring of the sintered glass sleeve is fixed in the inner connecting groove of the copper column, so that the stability of the copper column and the sintered glass sleeve on the flange plate is ensured, and the sealing property is ensured, and the utility model has good practicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is whole structure schematic diagram of the utility model;

[0017] Figure 2 It is whole structure explosion drawing of the utility model;

[0018] Figure 3 It is whole cross section schematic diagram of the utility model;

[0019] Figure 4 It is cross section schematic diagram of the utility model flange plate;

[0020] Figure 5 It is structure schematic diagram of the utility model lower pressure glass cover;

[0021] Figure 6 It is structure schematic diagram of the utility model upper pressure glass cover;

[0022] Figure 7 It is cross section schematic diagram of the utility model sintered glass sleeve.

[0023] Mark explanation in drawing:

[0024] 1, flange plate;2, through hole;3, outer connecting groove;4, copper column;5, inner connecting groove;6, sintered glass sleeve;7, outer connecting ring;8, inner connecting ring;9, upper threaded column;10, lower threaded column;11, upper connecting mechanism;12, lower connecting mechanism;13, upper pressure glass cover;14, liquid injection hole;15, first threaded hole;16, lower pressure glass cover;17, second threaded hole. DETAILED DESCRIPTION

[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0026] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Embodiment:

[0029] Please refer to Figures 1-7 A kind of high-voltage resistant terminal block for shielding motor, including flange plate 1, multiple through holes 2 are provided on flange plate 1, outer connecting groove 3 is respectively arranged on the inner wall of multiple through holes 2, multiple through holes 2 are respectively sleeved with wiring copper column 4, inner connecting groove 5 is arranged on the outer side of the middle end of wiring copper column 4, the top end of wiring copper column 4 extends to the top of flange plate 1 and is provided with upper threaded column 9, upper connecting mechanism 11 is arranged on the outer side of upper threaded column 9, the bottom end of wiring copper column 4 extends to the bottom of flange plate 1 and is provided with lower threaded column 10, lower connecting mechanism 12 is arranged on the outer side of lower threaded column 10, sintered glass sleeve 6 is fixedly sleeved in the inner cavity of through hole 2 and located at the outer side of wiring copper column 4, inner connecting ring 8 is arranged on the inner wall of sintered glass sleeve 6, the end of inner connecting ring 8 is fixedly sleeved into the inner cavity of inner connecting groove 5, outer connecting ring 7 is arranged on the outer side of sintered glass sleeve 6, and the end of outer connecting ring 7 is fixedly sleeved into the inner cavity of outer connecting groove 3.

[0030] Specifically, please refer to Figures 1 to 6The upper connecting mechanism 11 comprises an upper pressure-resistant glass cover 13 which is screwed on the outer side of the upper threaded column 9, the upper pressure-resistant glass cover 13 has a liquid injection hole 14 on the top surface, and the upper pressure-resistant glass cover 13 has a first threaded hole 15 on the top end, the first threaded hole 15 is screwed with the upper threaded column 9, and the bottom surface of the upper pressure-resistant glass cover 13 is attached to the top surface of the flange plate 1.

[0031] In this embodiment, the upper pressure-resistant glass cover 13 is installed on the connecting copper column 4 through the cooperation of the first threaded hole 15 and the upper threaded column 9.

[0032] Specifically, please refer to Figures 1 to 5 The lower connecting mechanism 12 comprises a lower pressure-resistant glass cover 16 which is screwed on the outer side of the lower threaded column 10, the lower pressure-resistant glass cover 16 has a second threaded hole 17 on the bottom surface, the second threaded hole 17 is screwed with the lower threaded column 10, and the top surface of the lower pressure-resistant glass cover 16 is attached to the bottom surface of the flange plate 1.

[0033] In this embodiment, the lower pressure-resistant glass cover 16 is installed on the connecting copper column 4 through the cooperation between the second threaded hole 17 and the lower threaded column 10, and the connecting copper column 4 is fixed on the flange plate 1 through the cooperation of the upper pressure-resistant glass cover 13 and the lower pressure-resistant glass cover 16, so as to inject the molten glass into the inner cavity of the through hole 2, the upper pressure-resistant glass cover 13 and the lower pressure-resistant glass cover 16.

[0034] Specifically, please refer to Figures 1 to 3 The inner diameter of the upper pressure-resistant glass cover 13 is equal to the inner diameter of the through hole 2.

[0035] In this embodiment, it is ensured that the molten glass in the inner cavity of the upper pressure-resistant glass cover 13 can smoothly enter the through hole 2.

[0036] Specifically, please refer to Figures 1 to 3 The inner diameter of the lower pressure-resistant glass cover 16 is equal to the inner diameter of the through hole 2.

[0037] In this embodiment, it is ensured that the molten glass in the inner cavity of the through hole 2 can smoothly enter the lower pressure-resistant glass cover 16.

[0038] Specifically, please refer to Figure 3 The outer side of the sintered glass sleeve 6 is connected to the inner wall of the upper pressure-resistant glass cover 13, and the outer side of the sintered glass sleeve 6 is connected to the inner wall of the lower pressure-resistant glass cover 16.

[0039] In this embodiment, it is ensured that the connection between the sintered glass sleeve 6 and the first threaded hole 15 and the lower pressure-resistant glass cover 16 is firm.

[0040] Working principle: in use, first, the plurality of copper column 4 is inserted into the plurality of through holes 2 on the flange plate 1, and the upper pressure-resistant glass cover 13 is installed on the top end of the copper column 4 through the cooperation of the upper threaded column 9 and the first threaded hole 15, and the lower pressure-resistant glass cover 16 is installed on the bottom end of the copper column 4 through the cooperation of the lower threaded column 10 and the second threaded hole 17, so as to install and fix the plurality of copper column 4 on the flange plate 1, then the molten glass is injected into the inner cavity of the upper pressure-resistant glass cover 13 from the liquid injection hole 14, so that the molten glass in the inner cavity of the upper pressure-resistant glass cover 13 enters the inner cavity of the through hole 2, and the molten glass in the inner cavity of the through hole 2 enters the lower pressure-resistant glass cover 16, and then the molten glass in the inner cavities of the through hole 2, the upper pressure-resistant glass cover 13 and the lower pressure-resistant glass cover 16 is solidified, so that the molten glass forms the sintered glass sleeve 6, and the sintered glass sleeve 6 is used for sealing and connecting between the flange plate 1 and the copper column 4, and the sintered glass sleeve 6 is used for sealing and connecting between the copper column 4 and the lower pressure-resistant glass cover 16, and the copper column 4 and the upper pressure-resistant glass cover 13, finally, the flange plate 1 is installed on the shielded electric pump, and the wiring is performed through the upper threaded column 9 and the lower threaded column 10 on the copper column 4.

[0041] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the improvement concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A high-voltage resistant terminal block for shielding electric machines, comprising a flange plate (1), characterized in that: The flange plate (1) is provided with a plurality of through holes (2), the inner walls of the plurality of through holes (2) are respectively provided with outer connecting grooves (3), a plurality of wire connecting copper columns (4) are respectively arranged in the plurality of through holes (2), the outer side of the middle end of the wire connecting copper column (4) is provided with an inner connecting groove (5), the top end of the wire connecting copper column (4) extends to the top of the flange plate (1) and is provided with an upper threaded column (9), the outer side of the upper threaded column (9) is provided with an upper connecting mechanism (11), the bottom end of the wire connecting copper column (4) extends to the bottom of the flange plate (1) and is provided with a lower threaded column (10), the outer side of the lower threaded column (10) is provided with a lower connecting mechanism (12), the inner cavity of the through hole (2) and the outer side of the wire connecting copper column (4) are fixedly sleeved with a sintered glass sleeve (6), the inner wall of the sintered glass sleeve (6) is provided with an inner connecting ring (8), the end of the inner connecting ring (8) is fixedly sleeved into the inner cavity of the inner connecting groove (5), the outer side of the sintered glass sleeve (6) is provided with an outer connecting ring (7), and the end of the outer connecting ring (7) is fixedly sleeved into the inner cavity of the outer connecting groove (3).

2. A high voltage resistant terminal block for shielding an electric machine according to claim 1, characterized in that: The upper connecting mechanism (11) comprises an upper pressure-resistant glass cover (13) which is screwed on the outer side of the upper threaded column (9), the top surface of the upper pressure-resistant glass cover (13) is provided with a liquid injection hole (14), the top end of the upper pressure-resistant glass cover (13) is provided with a first threaded hole (15), the first threaded hole (15) is threadedly sleeved with the upper threaded column (9), and the bottom surface of the upper pressure-resistant glass cover (13) is attached to the top surface of the flange plate (1).

3. A high voltage resistant terminal block for shielding an electric machine according to claim 2, characterized in that: The lower connecting mechanism (12) comprises a lower pressure-resistant glass cover (16) which is screwed on the outer side of the lower threaded column (10), the bottom surface of the lower pressure-resistant glass cover (16) is provided with a second threaded hole (17), the second threaded hole (17) is threadedly sleeved with the lower threaded column (10), and the top surface of the lower pressure-resistant glass cover (16) is attached to the bottom surface of the flange plate (1).

4. A high voltage resistant terminal block for shielding an electric machine according to claim 2, characterized in that: The inner diameter of the upper pressure-resistant glass cover (13) is equal to the inner diameter of the through hole (2).

5. A high voltage resistant terminal block for shielding an electric machine according to claim 3, characterized in that: The inner diameter of the lower pressure-resistant glass cover (16) is equal to the inner diameter of the through hole (2).

6. A high voltage resistant terminal block for shielding an electric machine according to claim 3, characterized in that: The outer side surface of the sintered glass sleeve (6) is connected with the inner wall of the upper pressure-resistant glass cover (13), and the outer side surface of the sintered glass sleeve (6) is connected with the inner wall of the lower pressure-resistant glass cover (16).

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