CN114678726A

CN114678726A - Liquid-cooled rifle head of rifle charges

Info

Publication number: CN114678726A
Application number: CN202210303133.0A
Authority: CN
Inventors: 宋高军; 王建东; 邹志平; 窦文娟
Original assignee: Zhangjiagang Uchen New Energy Co ltd
Current assignee: Zhangjiagang Uchen New Energy Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-06-28
Anticipated expiration: 2042-03-25
Also published as: CN114678726B

Abstract

The utility model belongs to the technical field of electric vehicle's connector and specifically relates to a liquid cooling formula rifle head of rifle charges is related to, and it includes mounting panel and sleeve, and the mounting panel setting is in sleeve one end, seals sleeve one end, is equipped with the terminal subassembly on the lateral wall of mounting panel, and the terminal subassembly setting is in the sleeve, and the sleeve is kept away from mounting panel one end and is equipped with and seals the board, seals and sets up the through-hole that supplies the terminal subassembly to wear out on the board, and sleeve one end intercommunication has the feed liquor pipe, and the other end intercommunication has the drain pipe. This application has the promotion to the cooling efficiency of rifle that charges, reduces the effect that the rifle temperature that charges surpasss the condition of alert temperature appear.

Description

Liquid-cooled rifle head of rifle charges

Technical Field

The present application relates to the field of connectors for electric vehicles, and more particularly, to a liquid-cooled gun head for a charging gun.

Background

Along with the popularization of new energy automobiles, charging pile chargers of automobiles also start to become visible everywhere at rest stations. Because the energy consumed by the running of the automobile is more, and a driver generally only stops for a short time at a rest station, the charging of the automobile in a short time is particularly important.

However, the larger the current passing through the charging gun, the more significant the heat generation at the connection between the charging gun and the automobile, and if the temperature exceeds the warning temperature due to the heat generation, various problems are easily caused.

Disclosure of Invention

In order to promote the cooling efficiency to the rifle that charges, reduce the condition that the rifle temperature that appears charging exceeded warning temperature, this application provides a liquid-cooled rifle head of rifle that charges.

The application provides a liquid cooling formula rifle head of rifle charges adopts following technical scheme:

the utility model provides a liquid-cooled rifle head of rifle charges, includes mounting panel and sleeve, the mounting panel sets up in sleeve one end, will sleeve one end is sealed, be equipped with the terminal subassembly on the lateral wall of mounting panel, the terminal subassembly sets up in the sleeve, the sleeve is kept away from mounting panel one end is equipped with seals the board, seal and offer the confession on the board the through-hole that the terminal subassembly wore out, sleeve one end intercommunication has the feed liquor pipe, and other end intercommunication has the drain pipe, be equipped with the guide plate that the spiral extends in the sleeve, the terminal subassembly runs through the guide plate.

Through adopting above-mentioned technical scheme, let in the coolant liquid from the feed liquor pipe, the coolant liquid carries out the liquid cooling to the terminal subassembly in the sleeve, discharges from the drain pipe again, replaces original natural cooling, delays terminal subassembly temperature rate of rise, reduces the condition that the rifle temperature that charges surpasss alert temperature to appear. The guide plate leads the coolant liquid in the sleeve, so that the cooling flows along a flow channel formed by the guide plate, the connecting assembly is comprehensively cooled, and the cooling stability of the connecting terminal is improved.

In a specific embodiment, the terminal assembly includes a plurality of connection terminals, one end of each of which is disposed on the side wall of the mounting plate, and the other end of each of which protrudes through the through hole, and a plurality of sealing members, which are disposed on the side walls of the connection terminals, and seal gaps between the connection terminals and the through holes.

Through adopting above-mentioned technical scheme, the sealing member promotes the sealed effect between connecting terminal and the through-hole, avoids appearing the condition of coolant liquid seepage.

In a specific embodiment, the connection terminals are connected to the mounting board by PIN PINs.

Through adopting above-mentioned technical scheme, make things convenient for connecting terminal to install and dismantle on the mounting panel, the convenience is gone on mounting panel and connecting terminal. And connecting terminals with different specifications can be disassembled and assembled on the same mounting plate, so that the connecting terminals can be freely combined on the mounting plate.

In a specific practical implementation scheme, the sealing member includes straight section of thick bamboo portion and spacing portion, straight section of thick bamboo portion cover is established on connecting terminal, spacing portion sets up straight section of thick bamboo portion is kept away from the one end of mounting panel, spacing portion interval is equipped with a plurality ofly, seal the board and set up adjacently between the spacing portion.

Through adopting above-mentioned technical scheme, straight section of thick bamboo portion seals up waterproof to connecting terminal's lateral wall, and spacing portion seals up the clearance between connecting terminal and the through-hole inner wall to carry on spacingly to the position of sealing member on connecting terminal, promote the sealing stability of sealing member to connecting terminal.

In a specific implementation scheme, a baffle ring is arranged on the side wall of the connecting terminal, a sealing ring is arranged at one end, close to the baffle ring, of the straight cylinder part, a locking ring is sleeved on the straight cylinder part, a connecting ring is arranged on one surface, facing the mounting plate, of the locking ring, and a connecting groove used for containing the connecting ring is formed in the mounting plate.

By adopting the technical scheme, the position of the connecting terminal on the mounting plate is limited by the retaining ring, the stability of the connecting terminal on the mounting plate is improved, the sealing ring and the retaining ring are clamped on the mounting plate by the locking ring, so that the gap between the connecting terminal and the mounting plate is more comprehensively sealed by the sealing element, and the waterproof performance of the connecting terminal and the mounting plate is improved.

In a specific possible embodiment, the sealing plate is provided with an accommodating cavity for clamping the limiting part.

Through adopting above-mentioned technical scheme, spacing portion joint is holding the intracavity, can reduce spacing portion because external factors leads to the life-span to reduce fast, prolongs the life of sealing member. And meanwhile, the inner wall of the accommodating cavity is attached to the side wall of the limiting part, and the cooling liquid in the sleeve is not easy to permeate outwards from the through hole, so that the sealing and waterproof performance of connecting the connecting terminal and the sealing plate is improved.

In a specific embodiment, the straight cylinder portion is screwed with a side wall of the connection terminal.

Through adopting above-mentioned technical scheme, the straight section of thick bamboo of rotating can carry out being connected of connecting terminal and sealing member to can control the position of sealing member on connecting terminal through the length of control screw thread, conveniently adjust being connected of sealing member and connecting terminal. Meanwhile, the threads have a certain anti-loosening effect, and the connection stability of the sealing piece and the connecting terminal can be effectively improved.

In a specific possible embodiment, the mounting plate is provided with a mounting groove, and the straight cylinder part extends into the mounting groove.

Through adopting above-mentioned technical scheme, can accomplish the sealing member fast in inserting the mounting groove with straight section of thick bamboo portion and be connected with the mounting panel to through enlarging the area of contact of sealing member and mounting panel, the route that the extension coolant liquid permeates through to the sealing member in, promote the sealing waterproof performance of sealing member to the connection between connecting terminal and the mounting panel.

In a specific possible implementation manner, a plurality of fixing rods are arranged at one end, facing the mounting plate, of the straight cylinder part, a plurality of fixing holes used for accommodating the fixing rods are formed in the mounting plate, and the fixing holes are communicated with the mounting groove.

By adopting the technical scheme, after the straight cylinder part is inserted into the mounting groove, the fixing rod is bent and inserted into the fixing hole. Through the effect direction of the power that needs when changing the sealing member and deviating from the mounting groove for the sealing member is difficult for breaking away from the mounting panel, can block simultaneously that connecting terminal breaks away from the mounting panel, promotes the stability of being connected of connecting terminal and mounting panel.

In a specific implementation, a connecting sleeve is arranged in the fixing hole, a retaining ring is arranged on the inner wall of the connecting sleeve, a locking sleeve is arranged between the retaining ring and the inner wall of the connecting sleeve, one end, far away from the straight cylinder part, of the fixing rod is arranged in the locking sleeve, the locking sleeve blocks the fixing rod to be separated from the locking sleeve, a positioning sheet is arranged on the outer wall of the connecting sleeve, and a positioning groove for clamping the positioning sheet is formed in the inner wall of the fixing hole.

By adopting the technical scheme, when the fixing rod is separated from the locking sleeve, the trend of driving the locking sleeve to rotate exists, the connecting sleeve blocks the locking sleeve from rotating in the connecting sleeve, the positioning piece blocks the connecting sleeve from rotating in the fixing hole, and the stability of the fixing rod in the fixing hole is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cooling liquid is introduced into the sleeve from the liquid inlet pipe to cool the terminal assembly in the sleeve, so that heat emitted when the terminal assembly operates is absorbed, heat accumulation around the terminal assembly is reduced, the cooling efficiency of the terminal assembly is improved, and the condition that the temperature of the charging gun exceeds the warning temperature is reduced;

2. the retaining ring and the sealing ring are clamped on the mounting plate by the locking ring, so that the sealing and waterproof performance of connection between the connecting terminal and the mounting plate is improved.

Drawings

Fig. 1 is a schematic view of the entire structure of embodiment 1.

Fig. 2 is a sectional view showing the internal structure of the sleeve.

Fig. 3 is an exploded view showing the structure of the sealing member.

Fig. 4 is a sectional view showing the internal structure of the sleeve according to embodiment 2.

Fig. 5 is an exploded view showing the structure of the fixing hole.

Fig. 6 is a partially enlarged schematic view at a in fig. 5.

Fig. 7 is a partially enlarged schematic view at B in fig. 5.

Description of reference numerals: 1. mounting a plate; 2. a sleeve; 3. an end cap; 4. a sealing plate; 5. a terminal assembly; 51. a connection terminal; 52. a baffle ring; 6. a seal member; 61. a straight barrel portion; 62. a limiting part; 63. a seal ring; 7. a baffle; 8. locking a ring; 9. a yielding groove; 10. a connecting ring; 11. a liquid inlet pipe; 12. a liquid outlet pipe; 13. connecting grooves; 14. mounting grooves; 15. a fixing hole; 16. fixing the rod; 17. a card slot; 18. an accommodating chamber; 19. a through hole; 20. connecting sleeves; 21. a locking sleeve; 22. a clamping block; 23. positioning a groove; 24. positioning plates; 25. a limiting groove; 26. and a retainer ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

Example 1:

referring to fig. 1 and 2, the liquid-cooled gun head of the charging gun comprises an end cover 3, a mounting plate 1 and a sleeve 2, wherein a clamping groove 17 for clamping the mounting plate 1 is formed in the inner side wall of the sleeve 2, and the mounting plate 1 is fixed on the inner wall of the end cover 3. When the end cover 3 is covered at one end of the sleeve 2, the mounting plate 1 is clamped in the clamping groove 17. And fixing and sealing by adopting a plastic coating mode.

Referring to fig. 2 and 3, a terminal assembly 5 is disposed on a surface of the mounting plate 1 away from the end cap 3, a sealing plate 4 is fixed to an end of the sleeve 2 away from the mounting plate 1, and a plurality of through holes 19 for the terminal assembly 5 to pass through are formed in the sealing plate 4. One end of the sleeve 2 is communicated with a liquid inlet pipe 11, and the other end is communicated with a liquid outlet pipe 12. A spirally extending baffle 7 is fixed on the inner wall of the sleeve 2, and the terminal assembly 5 penetrates through the baffle 7. When the vehicle is charged, the terminal assembly 5 is connected to a charging port of the vehicle, and the terminal assembly 5 generates a large amount of heat due to the passage of current. The cooling liquid is introduced from the liquid inlet pipe 11 and flows along the flow channel separated by the guide plate 7 to cool the terminal assembly 5 in the sleeve 2, so that the cooling of the terminal assembly 5 is more comprehensive and efficient. The cooling liquid absorbing heat is discharged from the liquid outlet pipe 12, and enters a new cycle after being cooled.

Referring to fig. 2 and 3, the terminal assembly 5 includes a plurality of connection terminals 51 and a plurality of sealing members 6, one end of each connection terminal 51 is connected to the mounting plate 1 through a PIN, the other end of each connection terminal 51 extends out of the sleeve 2 after penetrating through the baffle 7 and the sealing plate 4, and the sealing members 6 are sleeved on the connection terminals 51 to seal a gap between the connection terminals 51 and the sealing plate 4 and a gap between the connection terminals 51 and the mounting plate 1. Connecting terminal 51 and mounting panel 1 can be dismantled and be connected, conveniently change connecting terminal 51 to and arrange the connecting terminal 51 of different specifications on mounting panel 1, the rifle head equipment is more nimble. Through the mode of directly contacting with the coolant after sealing connecting terminal 51, reduce the medium between connecting terminal 51 and the coolant, shorten heat conduction time, promote the cooling efficiency to the terminal.

Referring to fig. 2 and 3, the sealing member 6 includes a straight cylinder portion 61 and a stopper portion 62 which are integrally formed, the straight cylinder portion 61 is fitted over the connection terminal 51, and the stopper portion 62 is provided at an end of the straight cylinder portion 61 remote from the mounting portion. In this embodiment, the limiting portion 62 is in the shape of a ring with a trapezoidal cross section, and in some other embodiments, the limiting portion may also be in the shape of a ring with a rectangular or triangular cross section. The sealing plate 4 is provided with a containing cavity 18 for clamping the limiting part 62. Two limiting parts 62 are arranged, the directions of the two limiting parts 62 are opposite, one limiting part 62 is arranged in the sleeve 2, and the other limiting part 62 is arranged in the containing cavity 18 of the sealing plate 4. The external diameter of the limiting part 62 arranged in the accommodating cavity 18 is gradually increased along the direction close to the sealing plate 4, so that when the connecting terminal 51 penetrates out of the through hole 19, the limiting part 62 together penetrates out of the through hole 19, and after the limiting part 62 penetrates out, the limiting part is not easy to retract into the through hole 19 under the action of pressure, the stability of the limiting part 62 on the sealing plate 4 is improved, and the sealing effect of the gap between the inside of the through hole 19 and the connecting terminal 51 is improved. And after the limiting part 62 is clamped in the accommodating cavity 18, the cooling liquid is more difficult to leak out from the through hole 19. Glue is dripped into the containing cavity 18 to further seal the gap between the sealing element 6 and the sealing plate 4, and the sealing effect of the limiting part 62 on the through hole 19 is improved. The outer diameter of the position-limiting portion 62 disposed in the sleeve 2 gradually increases in the direction approaching the sealing plate 4, and when the connecting terminal 51 is subjected to a tensile force, the position-limiting portion 62 blocks the connecting terminal 51 from extending outward, and improves the sealing effect of the through hole 19 and the connecting terminal 51 under the tensile force. Glue is filled in the gap between the limiting part 62 and the sealing plate 4, so that the sealing effect of the sealing element 6 is further improved.

Referring to fig. 2 and 3, a blocking ring 52 is fixed at one end of the connection terminal 51 close to the mounting plate 1, a sealing ring 63 is integrally formed at one end of the straight cylinder 61 close to the blocking ring 52, a locking ring 8 is sleeved at one end of the straight cylinder 61 close to the mounting plate 1, a connection ring 10 is integrally formed on one surface of the locking ring 8 facing the mounting plate 1, a connection groove 13 for accommodating the connection ring 10 is formed in the mounting plate 1, and the connection ring 10 is screwed in the connection groove 13. The inner wall of the locking ring 8 is provided with a yielding groove 9, the sealing ring 63 and the baffle ring 52 are both arranged in the yielding groove 9, and the sealing ring 63, the baffle ring 52 and the locking ring 8 are tightly attached. And rotating the locking ring 8 to enable the connecting ring 10 to be in threaded connection with the connecting groove 13, so that the locking ring 8 clamps the sealing ring 63 and the baffle ring 52 on the mounting plate 1, the gap between the sealing ring 63, the baffle ring 52 and the locking ring 8 is reduced, the cooling liquid is prevented from permeating into the connecting terminal 51, and the sealing effect on the connecting part of the connecting terminal 51 and the mounting plate 1 is improved.

The implementation principle of the embodiment 1 of the application is as follows: the sealing member 6 is sleeved on the connecting terminal 51, the locking ring 8 is rotated, the connecting terminal 51 is fixed on the mounting plate 1 through the connecting ring 10, the connecting terminal 51 is inserted into the sleeve 2, the other end of the connecting terminal 51 penetrates out of the sleeve 2, and the limiting part 62 of the sealing member 6 clamps the sealing plate 4 for sealing. The coolant is introduced into the sleeve 2 from the liquid inlet pipe 11, cools the plurality of connection terminals 51 in the sleeve 2, and is then discharged from the liquid outlet pipe 12.

Example 2:

referring to fig. 4 and 5, embodiment 2 differs from embodiment 1 in that: the straight cylinder part 61 is in threaded connection with the side wall of the connecting terminal 51, so that the straight cylinder part 61 can be conveniently and quickly positioned on the connecting terminal 51, and the connection stability of the straight cylinder part 61 and the connecting terminal 51 is improved through the friction force of the threads.

Referring to fig. 4 and 5, the straight cylinder portion 61 extends toward the mounting plate 1 toward one end of the mounting plate 1 and is formed in a horn shape. An annular mounting groove 14 is formed in the mounting plate 1, and one end of the straight cylinder part 61 in a horn shape is clamped in the mounting groove 14. The seal member 6 is made of a material such as rubber which is easily deformable, and the sealing effect of the straight cylinder portion 61 with respect to the connection terminal 51 and the mounting plate 1 is improved by inserting the straight cylinder portion 61 into the mounting groove 14 and increasing the contact area between the straight cylinder portion 61 and the mounting plate 1.

Referring to fig. 5, 6 and 7, a plurality of fixing bars 16 are integrally formed on the end surface of the horn-shaped end of the straight cylinder 61, and the plurality of fixing bars 16 are arranged at regular intervals in the circumferential direction of the straight cylinder 61. A plurality of fixing holes 15 communicated with the mounting groove 14 are arranged on the mounting plate 1 at intervals, and a connecting sleeve 20 is clamped in the fixing holes 15. A plurality of positioning pieces 24 are integrally formed on the outer wall of the connecting sleeve 20, and a plurality of positioning grooves 23 for clamping the positioning pieces 24 are formed on the inner wall of the fixing hole 15. One end of the connecting sleeve 20 in the fixing hole 15 is integrally formed with a retaining ring 26, a locking sleeve 21 is arranged between the retaining ring 26 and the inner wall of the connecting sleeve 20, one surface of the locking sleeve 21 facing the connecting sleeve 20 is integrally formed with a plurality of clamping blocks 22, and one surface of the retaining ring 26 facing the locking sleeve 21 is provided with a plurality of limiting grooves 25 for clamping the clamping blocks 22. The locking sleeve 21 is connected with the fixed rod 16 in a threaded manner, and after the locking sleeve 21 is screwed to the threaded end of the fixed rod 16, the fixture block 22 is clamped in the limiting groove 25. Because the fixed rod 16 has the trend of driving the locking sleeve 21 to rotate when loosening from the locking sleeve, the clamping block 22 and the limiting groove 25 block the locking sleeve 21 from rotating in the connecting sleeve 20, the positioning sheet 24 and the positioning groove 23 block the connecting sleeve 20 from rotating in the fixing hole 15, and further block the fixed rod 16 from escaping from the locking sleeve 21, thereby improving the stability of the fixed rod 16 in the fixing hole 15 and further improving the connection stability of the sealing element 6 and the mounting plate 1.

The implementation principle of embodiment 2 of the present application is as follows: the seal 6 is rotated to position and fix the seal 6 on the connection terminal 51, the connection terminal 51 is inserted into the mounting plate 1, the straight tube portion 61 of the seal 6 is inserted into the mounting groove 14, and after the fixing rod 16 passes through the fixing hole 15, the fixing rod 16 is further fixed by screwing the upper locking sleeve 21. The connection terminal 51 can be cooled by inserting the connection terminal 51 into the sleeve 2 and introducing a coolant into the sleeve 2.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a liquid-cooled rifle head of rifle charges which characterized in that: including mounting panel (1) and sleeve (2), mounting panel (1) sets up in sleeve (2) one end, will sleeve (2) one end is sealed, be equipped with terminal subassembly (5) on the lateral wall of mounting panel (1), terminal subassembly (5) set up in sleeve (2), sleeve (2) are kept away from mounting panel (1) one end is equipped with seals board (4), seal and offer the confession on board (4) through-hole (19) that terminal subassembly (5) wore out, sleeve (2) one end intercommunication has feed liquor pipe (11), and other end intercommunication has drain pipe (12), be equipped with spiral extension's guide plate (7) in sleeve (2), terminal subassembly (5) run through guide plate (7).

2. The liquid-cooled lance head of a charging lance of claim 1, wherein: the terminal assembly (5) comprises a plurality of connecting terminals (51) and a plurality of sealing elements (6), one end of each connecting terminal (51) is arranged on the side wall of the mounting plate (1), the other end of each connecting terminal penetrates out of the through hole (19), and the sealing elements (6) are arranged on the side walls of the connecting terminals (51) and seal gaps between the connecting terminals (51) and the through holes (19).

3. The liquid-cooled lance head of a charging lance of claim 2, wherein: the connecting terminal (51) is connected with the mounting plate (1) through a PIN needle.

4. The liquid-cooled lance head of a charging lance of claim 2, wherein: sealing member (6) are including straight section of thick bamboo portion (61) and spacing portion (62), straight section of thick bamboo portion (61) cover is established on connecting terminal (51), spacing portion (62) set up straight section of thick bamboo portion (61) is kept away from the one end of mounting panel (1), spacing portion (62) interval is equipped with a plurality ofly, sealing plate (4) set up adjacently between spacing portion (62).

5. The liquid-cooled gun head for a charging gun of claim 4, wherein: be equipped with on the lateral wall of connecting terminal (51) and keep off ring (52), the one end that straight section of thick bamboo portion (61) are close to and keep off ring (52) is equipped with sealing ring (63), the cover is equipped with locking ring (8) on straight section of thick bamboo portion (61), be equipped with go-between (10) on locking ring (8) the one side towards mounting panel (1), offer on mounting panel (1) and be used for holding spread groove (13) of go-between (10).

6. The liquid-cooled gun head for a charging gun of claim 4, wherein: the sealing plate (4) is provided with a containing cavity (18) for clamping the limiting part (62).

7. The liquid-cooled gun head for a charging gun of claim 4, wherein: the straight cylinder part (61) is screwed to the side wall of the connection terminal (51).

8. The liquid-cooled gun head for a charging gun of claim 7, wherein: the mounting plate (1) is provided with a mounting groove (14), and the straight cylinder part (61) extends into the mounting groove (14).

9. The liquid-cooled gun head for a charging gun of claim 8, wherein: straight section of thick bamboo portion (61) is equipped with many dead levers (16) towards the one end of mounting panel (1), set up a plurality of fixed orificess (15) that are used for holding dead lever (16) on mounting panel (1), fixed orifices (15) with mounting groove (14) intercommunication.

10. The liquid-cooled lance head of the charging lance of claim 9, wherein: be equipped with adapter sleeve (20) in fixed orifices (15), be equipped with retaining ring (26) on the inner wall of adapter sleeve (20), retaining ring (26) with be equipped with locking cover (21) between adapter sleeve (20) inner wall, dead lever (16) are kept away from the one end of straight section of thick bamboo portion (61) sets up in locking cover (21), locking cover (21) stop dead lever (16) are followed deviate from in locking cover (21), be equipped with on the outer wall of adapter sleeve (20) spacer (24), the confession has been seted up on the inner wall of fixed orifices (15) the constant head tank (23) of spacer (24) joint.