CN107658627B

CN107658627B - Connector

Info

Publication number: CN107658627B
Application number: CN201710881481.5A
Authority: CN
Inventors: 史建强; 张春磊; 周江伟; 王长昌; 蔡纪卫; 徐先伟; 鲍庆臣
Original assignee: CRRC Qingdao Sifang Rolling Stock Research Institute Co Ltd
Current assignee: CRRC Qingdao Sifang Rolling Stock Research Institute Co Ltd
Priority date: 2017-09-26
Filing date: 2017-09-26
Publication date: 2019-05-31
Anticipated expiration: 2037-09-26
Also published as: CN107658627A

Abstract

The present invention proposes a kind of connector, including the first lid, the second lid and the first connection row, first lid is fixedly connected with second lid in end, the first mobile cavity of the first connection row can be limited by being formed between first lid and second lid, and first cavity is formed with the first open end；The first connection row is sheathed on the inside of first cavity, the first open end that the first connection row corresponds to first cavity is formed with the first connection end, first connection end offers the first fixed groove, to be electrically connected by grafting copper bar and main circuit of converter.The present invention can be improved replacement and maintenance efficiency to power module.

Description

Connector

Technical field

The invention belongs to converter topology field more particularly to a kind of connectors, for making power module and current transformer master Current lead-through between circuit.

Background technique

High-power high voltage current transformer has relatively broad application in fields such as such as ship, wind-powered electricity generation, rail traffics, inside Power module is the core cell of entire current transformer inversion or rectification function, and often as an integral module and current transformer master Circuit is attached.

Currently, power module mostly uses greatly low-inductance bus aperture to add the structure shape of bolt fastening external main circuit interface Formula, internal power module be packed into current transformer when using more bolt come with external copper bar or cable connection.

However, the installation space due to current transformer is narrow, fastening, the disassembling section of bolt are extremely inconvenient, especially exist When current transformer internal power module is replaced at scene, such as safeguard that response speed is excessively slow, can seriously affect live current transformer Maintenance efficiency.

Summary of the invention

The present invention is unfavorable for for the connection type of existing power module and main circuit of converter to power module replacement Technical problem proposes the connector of a kind of replacement that can be improved to power module and maintenance efficiency.

In order to achieve the above object, the technical solution adopted by the present invention are as follows:

A kind of connector, including the first lid, the second lid and the first connection row, first lid and second lid Body is fixedly connected in end, and the first connection row's movement can be limited by being formed between first lid and second lid The first cavity, first cavity is formed with the first open end；The first connection row is sheathed on the interior of first cavity Portion, the first open end that the first connection row corresponds to first cavity are formed with the first connection end, and described first connects It connects end and offers the first fixed groove, to be electrically connected by grafting copper bar and main circuit of converter.

Preferably, gap is each formed between the inner wall of first cavity and the first connection row, so that described First connection row moves along multiple directions.

Preferably, first lid is formed with the first retention bead close to the side of the first connection row, it is described First retention bead is multiple, multiple first retention bead interval settings.

Preferably, first cavity is formed with the second open end, it is empty that the first connection row corresponds to described first Second open end of chamber is formed with second connection end portion, to be electrically connected by being fixedly connected with copper bar and power module, described the Two connection ends include multiple the first fixed blocks for fixing copper bar, multiple described first fixed block gap settings.

Preferably, the end of first lid, which corresponds to first connection end, offers first groove, it is described The opening of first groove towards with the first open end of first cavity towards corresponding.

Preferably, offering second groove on second lid, the second groove is opened in second lid On the end face contacted with first lid.

Preferably, the end of second lid offers third groove, the direction of the third groove and described the First open end of one cavity is corresponding.

Preferably, the invention also includes third lid and the second connection row, the third lid and first lids Two sides of second lid are located at, the third lid is fixedly connected with first lid in end, described The second mobile cavity of the second connection row can be limited by being formed between third lid and first lid, and described second is empty Chamber is formed with third open end；The second connection row is sheathed on the inside of second cavity, and the second connection row corresponds to It is formed with third connection end in the third open end of second cavity, third connection end offers the second anchor Slot, to be electrically connected by grafting copper bar and main circuit of converter.

Compared with prior art, the advantages and positive effects of the present invention are:

1, connector of the present invention, which passes through, is arranged first lid and second lid, and in first connecting pin Portion offers first fixed groove, can by way of grafting with current transformer formed electric current conducting, then relative to Existing connector significantly reduces the usage quantity of the fasteners such as bolt, on the one hand significantly improve to power module maintenance Response efficiency, and then the maintenance efficiency to live current transformer is avoided to impact, it on the other hand can be improved the compactedness of structure, Even if connector in a limited space in realize the connection conducting of high-voltage great-current, and then meet that current transformer is highly integrated, lightweight Growth requirement, while also meeting the generalization requirement of connector different application.

2, connector of the present invention can be improved what main circuit of converter was arranged to the first connection row and second connection Creepage distance so as to make the first connection row and the second connection row bear high pressure, and then can guarantee connector Safety in use process；In addition, connector of the present invention can also facilitate the circulation of air, to be conducive to described first Connection row and second connection discharge into capable heat dissipation, and then sharply aging phenomenon occurs caused by capable of reducing because of high temperature, more into And improve the service life of connector.

3, connector of the present invention can be on the basis of first lid and third lid by increasing more lids And connection row meets the high collection of current transformer so as to realize the connection conducting of multichannel high-voltage heavy in a limited space At, light-weighted growth requirement, while also meeting the generalization requirement of connector different application.

Detailed description of the invention

Fig. 1 is the overall structure diagram of preferred embodiment of the present invention；

Fig. 2 is the configuration schematic diagram of Fig. 1；

Fig. 3 is the overall structure diagram looked in Fig. 1 to the first connection end；

Fig. 4 is the use state diagram of preferred embodiment of the present invention；

In above each figure: 1, the first lid；2, the second lid；3, the first connection row；4, the first connection end；5, second connects Connect end；6, the first fixed groove；7, the first fixation hole；8, the first fixed block；9, the first limiting groove；10,；First groove； 11, second groove；12, third lid；13, the second connection row；14, third connects end；15, the 4th connection end；16, second Fixed groove；17, the first copper bar；18, the second copper bar；19, the second retention bead；20, the second fixed block；21, the second fixation hole； 22, third groove.

Specific embodiment

In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one In the case where step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiments In.

In the description of the present invention, it should be noted that the orientation or position of the instructions such as term "inner", "outside", "upper", "lower" Set relationship be based on attached positional relationship shown in FIG. 1, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as Limitation of the present invention.In addition, term " first ", " second ", " third ", " the 4th " are used for description purposes only, and cannot understand For indication or suggestion relative importance.

Referring to Fig. 1 to Fig. 4, a kind of connector, including the first lid 1, the second lid 2 and the first connection row 3, described first Lid 1 is fixedly connected with second lid 2 in end, and being formed between first lid 1 and second lid 2 can limit The first mobile cavity of the first connection row 3 is made, first cavity is formed with the first open end；The first connection row 3 It is sheathed on the inside of first cavity, the first open end that the first connection row 3 corresponds to first cavity is formed with First connection end 4, first connection end 4 offers the first fixed groove 6, to pass through grafting copper bar and the main electricity of current transformer Road is electrically connected；First lid 1 and second lid 2 should be insulator.

Based on above-mentioned, connector of the present invention is by being arranged first lid 1 and second lid 2, and described First connection end 4 offers the first fixed groove 6, can form the conducting of electric current with current transformer by way of grafting, after And the usage quantity of the fasteners such as bolt is significantly reduced relative to existing connector, on the one hand significantly improve to power mould The response efficiency of block maintenance, and then the maintenance efficiency to live current transformer is avoided to impact, it on the other hand can be improved structure Compactedness, even if connector in a limited space in realize the connection conducting of high-voltage great-current, and then meet current transformer height collection At, light-weighted growth requirement, while also meeting the generalization requirement of connector different application.

As one embodiment of the present invention, as shown in Figures 1 to 4, first lid 1 is preferably plate, described The shape of first lid 1 can be rectangle, set the length direction of first lid 1 at this time to be lateral, if first lid 1 Width direction be longitudinal, and set the direction perpendicular to first lid 1 to be vertical；In addition, setting first connecting pin The copper bar that portion 4 connects is the first copper bar 17, and the copper bar that the second connection end portion 5 connects is the second copper bar 18.

For the structure of the first connection row 3, it is specifically as follows: as shown in Figures 1 to 4, first fixed groove 6 C-shaped, the opening of first fixed groove 6 is longitudinally disposed, and first fixed groove 6 extends transversely, and described first Fixed groove 6 is used to carry out grafting with first copper bar 17, on the one hand make between power module and main circuit of converter It is quickly electrically connected, the stable and reliable connection being on the other hand advantageously implemented between main circuit of converter and power module And conducting；First cavity is formed with the second open end, and the first connection row 3 corresponds to the second of first cavity and opens Mouth end is formed with second connection end portion 5, to be electrically connected by being fixedly connected with copper bar and power module, the second connection end portion 5 include multiple the first fixed blocks 8 for fixing copper bar, and multiple intervals of first fixed block 8 are arranged side by side, and can be reduced with this 3 stress deformations because of caused by the variation of high and low temperature are arranged in first connection, are offered on each first fixed block 8 Second copper bar 18 is removably fixed on the first connection row 3 by the first fixation hole 7 by bolt, described at this time First lid 1 corresponds to first fixation hole 7 and offers the first adjusting through-hole, and the described first diameter for adjusting through-hole is greater than institute The first fixation hole 7 is stated, so that bolt can pass through the first adjusting through-hole and be threadedly coupled with first fixation hole 7, and then advantageous In the assembly efficiency for improving connector and power module part.

As shown in Fig. 2, second lid 2 is preferably H-type, second lid 2 is transversely arranged, first lid 1 both ends transversely are detachably connected with second lid 2 by bolt, with to the first connection row 3 vertically and edge Lateral limit；Second lid, 2 middle part vertically and close to the side of first lid 1 offers the first limiting groove 9, the shape of first limiting groove 9 is corresponding with the exterior contour of the first connection row 3, so that the first connection row 3 can be placed on first limiting groove 9, and the limit to the first connection row 3 transversely and along longitudinal direction.

Further, first lid 1 vertically and close to the side of the first connection row 3 is formed with the first limit convex It rises, first retention bead is multiple, multiple first retention bead intervals setting, on the one hand can be to described the with this One connection row 3 plays limit vertically, on the other hand can facilitate the circulation of air, to be conducive to first connection Row 3 is radiated, and then sharply aging phenomenon occurs caused by capable of reducing because of high temperature, more and then improves the use of connector Service life.

Preferably, gap is each formed between the inner wall of first cavity and the first connection row 3, so that institute The first connection row 3 is stated to move along multiple directions, it is certain so as to there is the first connection row 3 in first cavity The activity space of distance, so that increasing first copper bar 17 connects the tolerance that first connection end 4 connects, Jin Erti High replacement and maintenance efficiency to power module；Be specifically as follows: first retention bead and first row of connection 3 it Between be formed with gap, be each formed with gap between the inner wall of first limiting groove 9 and the first connection row 3.

Further as shown in Fig. 2, first lid 1 opens up along longitudinal direction and close to the end of first connection end 4 There is first groove 10, the creepage distance that the first connection row 3 arrives fixed point outside connector can be improved with this, so as to So that the first connection row 3 is born high pressure, and then can guarantee the safety in connector use process.

Preferably, two first grooves 10 are located at described as shown in Fig. 2, the first groove 10 is two The both ends of first lid 1 transversely, further to make the first connection row 3 bear high pressure.

Further as shown in Fig. 2, offering second groove 11 on second lid 2, the second groove 11 is opened in On the end face that second lid 2 is contacted with first lid 1, the first connection row 3 can be further increased with this and arrived The creepage distance of fixed point outside connector so as to make the first connection row 3 bear high pressure, and then can guarantee to connect Safety in device use process.

Preferably, as shown in Fig. 2, the second groove 11 be strip groove, the second groove 11 be it is multiple, it is multiple The laterally spaced setting of the second groove 11 further makes the first connection row 3 bear high pressure with this.

Further as shown in Fig. 2, the both ends of second lid 2 along longitudinal direction offer third groove 22, the third Groove 22 is strip groove, and the third groove 22 extends transversely, and can further increase the first connection row 3 and the with this Creepage distance between two connection rows 13 so as to make the first connection row 3 bear high pressure, and then can guarantee connector Safety in use process.

In order to further increase the joint efficiency of connector and main circuit of converter, as shown in Figures 1 to 4, the present invention is also Including third lid 12 and the second connection row 13, the third lid 12 is located at second lid with first lid 1 Two sides of body 2, the third lid 12 are fixedly connected with first lid 1 in end, the third lid 12 and institute It states to be formed between the first lid 1 and can limit the second mobile cavity of the second connection row 13, second cavity is formed with Third open end and the 4th open end；The second connection row 13 is sheathed on the inside of second cavity, second connection The third open end that row 13 corresponds to second cavity is formed with third connection end 14, and third connection end 14 opens up There is the second fixed groove 16, to be electrically connected by grafting copper bar and main circuit of converter, at this point, first copper bar 17 is two A, one of them described first copper bar 17 connect end 4 with described first and connects, another described first copper bar 17 and described the Three connection ends 14 connect；The 4th open end that the second connection row 13 corresponds to the second chamber is formed with the 4th connection End 15, the 4th connection end 15 is corresponding with the second connection end portion 5, to be electrically connected with power module, at this point, institute Stating the second copper bar 18 is two, one of them described second copper bar 18 is connect with the second connection end portion 5, another described the Two copper bars 18 connect end 15 with the described 4th and connect；The third lid 12 should be insulator.

Based on above-mentioned, connector of the present invention connects end 14 by the way that the third lid 12 is arranged, and in the third Second fixed groove 16 is offered, the conducting of electric current can be formed with current transformer by way of grafting, then further Reduce the usage quantity of the fasteners such as bolt, on the one hand further avoid causing shadow to the maintenance efficiency of live current transformer Ring, on the other hand further increase the compactedness of structure, even if connector in a limited space in realize high-voltage great-current company Conducting is connect, and then meets that current transformer is highly integrated, light-weighted growth requirement, while also meeting the logical of connector different application With change requirement.

In addition, connector of the present invention can be more by increasing on the basis of first lid 1 and third lid 12 Lid and connection row, and the setting of change lid and connection row, can be realized connection row arrangement transversely and vertically, So as to realize the connection conducting of multichannel high-voltage heavy in a limited space, and then meet the highly integrated, light of current transformer The growth requirement of quantization, while also meeting the generalization requirement of connector different application.

For the structure of the second connection row 13, it is specifically as follows: as shown in Figures 1 to 4, second fixed groove 16 is C-shaped, and the opening of second fixed groove 16 is longitudinally disposed, and second fixed groove 16 extends transversely, described Second fixed groove 16 is used to carry out grafting with first copper bar 17, on the one hand make power module and main circuit of converter Between be quickly electrically connected, be on the other hand advantageously implemented stable and reliable between main circuit of converter and power module Connection and conducting；Second cavity is formed with third open end, and the second connection row 13 corresponds to second cavity Third open end is formed with the 4th connection end 15, to be electrically connected by being fixedly connected with copper bar and power module, the described 4th Connecting end 15 includes multiple the second fixed blocks 20 for fixing copper bar, and multiple intervals of second fixed block 20 are arranged side by side, The second connection 13 stress deformations because of caused by the variation of high and low temperature of row can be reduced with this, each described second is fixed The second fixation hole 21 is offered on block 20, and second copper bar 18 is removably fixed in second connection by bolt On row 13, the third lid 12 offers the second adjusting through-hole corresponding to second fixation hole 21 at this time, and described second adjusts The diameter for saving through-hole is greater than second fixation hole 21, so that bolt, which can pass through second, adjusts through-hole and second fixation hole 21 are threadedly coupled, and then are conducive to improve the assembly efficiency of connector and power module part.

Further as shown in Fig. 2, the both ends of the third lid 12 transversely are removable by bolt with second lid 2 Connection is unloaded, with the limit to the second connection row 13 vertically and transversely；Second lid, 2 middle part is vertically and close The side of the third lid 12 offers the second limiting groove, the shape of second limiting groove and second row of connection 13 exterior contour is corresponding, so that the second connection row 13 can be placed on second limiting groove, and to institute State the limit of the second connection row 13 transversely and along longitudinal direction.

Further, the third lid 12 vertically and close to the side of the second connection row 13 is formed with the second limit Protrusion 19, second retention bead 19 be it is multiple, on the one hand the setting of multiple second retention beads 19 intervals can with this Limit vertically is played to the second connection row 13, on the other hand can facilitate the circulation of air, to be conducive to institute It states the second connection row 13 to radiate, and then sharply aging phenomenon occurs caused by capable of reducing because of high temperature, more and then improves The service life of connector.

Preferably, it is each formed with gap between the inner wall of second cavity and the second connection row 13, so that The second connection row 13 moves along multiple directions, so as to there is the second connection row 13 in second cavity The activity space of certain distance, so that increasing first copper bar 17 connects the tolerance that third connection end 14 connects, Replacement and the maintenance efficiency to power module are improved in turn；It is specifically as follows: second retention bead 19 and described second It is formed with gap between connection row 13, is respectively formed between the inner wall of second limiting groove and the second connection row 13 free Gap.

Further, it is also possible to the third lid 12 and second lid 2 are arranged accordingly, can be improved The second connection row 13 is stated between fixed point outside connector and the second connection row 13 and the first connection row 3 Creepage distance so as to make the second connection row 13 bear high pressure, and then can guarantee the peace in connector use process Quan Xing is not stated carefully herein for details, reference can be made to above-mentioned.

Claims

1. a kind of connector, it is characterised in that: including the first lid (1), the second lid (2) and the first connection row (3), described the One lid (1) is fixedly connected with second lid (2) in end, between first lid (1) and second lid (2) The first mobile cavity of the first connection row (3) can be limited by being formed with, and first cavity is formed with the first open end；

The first connection row (3) is sheathed on the inside of first cavity, and the first connection row (3) corresponds to described first First open end of cavity is formed with the first connection end (4), and first connection end (4) offers the first fixed groove (6), to be electrically connected by grafting copper bar and main circuit of converter, the inner wall of first cavity and first row of connection (3) gap is each formed between, so that the first connection row (3) moves along multiple directions.

2. connector according to claim 1, it is characterised in that: first lid (1) is close to the first connection row (3) side is formed with the first retention bead, first retention bead be it is multiple, multiple first retention bead intervals are set It sets.

3. connector according to claim 1, it is characterised in that: first cavity is formed with the second open end, described The second open end that first connection row (3) corresponds to first cavity is formed with second connection end portion (5), to be connected by fixed It connects copper bar and power module is electrically connected, the second connection end portion (5) includes multiple the first fixed blocks for fixing copper bar (8), multiple first fixed block (8) interval settings.

4. connector according to claim 1, it is characterised in that: the end of first lid (1) corresponds to described the One connection end (4) offers first groove (10), and the opening of the first groove (10) is towards the with first cavity One open end is towards corresponding.

5. connector according to claim 1, it is characterised in that: offer second groove on second lid (2) (11), the second groove (11) is opened on the end face that second lid (2) contacts with first lid (1).

6. connector according to claim 1, it is characterised in that: the end of second lid (2) offers third ditch The direction of slot (22), the third groove (22) is corresponding with the first open end of first cavity.

7. connector according to claim 1 to 6, it is characterised in that: further include third lid (12) and second Connection row (13), the third lid (12) and first lid (1) are located at two sides of second lid (2) Side, the third lid (12) are fixedly connected with first lid (1) in end, the third lid (12) and described first Second mobile cavity of the second connection row (13) can be limited by being formed between lid (1), and second cavity is formed with the Three open ends；

The second connection row (13) is sheathed on the inside of second cavity, and the second connection row (13) corresponds to described the The third open end of two cavitys is formed with third connection end (14), and third connection end (14) offers the second anchor Slot (16), to be electrically connected by grafting copper bar and main circuit of converter.