CN220518006U - DC terminal liquid cooling structure for direct current charging gun - Google Patents
DC terminal liquid cooling structure for direct current charging gun Download PDFInfo
- Publication number
- CN220518006U CN220518006U CN202321882109.3U CN202321882109U CN220518006U CN 220518006 U CN220518006 U CN 220518006U CN 202321882109 U CN202321882109 U CN 202321882109U CN 220518006 U CN220518006 U CN 220518006U
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- liquid cooling
- terminal
- charging gun
- direct current
- clamping block
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- 239000007788 liquid Substances 0.000 title claims abstract description 167
- 238000001816 cooling Methods 0.000 title claims abstract description 124
- 239000002826 coolant Substances 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003507 refrigerant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The utility model relates to the technical field of charging guns, in particular to a DC terminal liquid cooling structure for a direct current charging gun, which comprises a charging gun head, two DC terminals and a terminal pressing plate sleeved outside the DC terminals, wherein the front end of the DC terminal is inserted into an inner cavity of the charging gun head, and the terminal pressing plate is covered at the rear end of the charging gun head and is in buckle connection with the rear end of the charging gun head; the outside cover of DC terminal is equipped with the liquid cooling device, is equipped with the liquid cooling agent passageway that is used for the circulation of liquid cooling agent in the inner chamber of liquid cooling device, takes away the heat that the DC terminal produced in the charging process through the liquid cooling agent of circulation flow, reaches the effect of cooling. The utility model can effectively solve the technical problems that the DC terminal in the existing direct current charging gun is not easy to dissipate heat and the conductive jack has high temperature and potential safety hazard.
Description
Technical Field
The utility model relates to the technical field of charging guns, in particular to a DC terminal liquid cooling structure for a direct current charging gun.
Background
The new energy electric automobile is a green transportation means driven by electric energy, and has been rapidly developed around the world due to the advantages of no exhaust emission and no environmental pollution. At present, two main factors restricting the development of new energy electric automobiles are as follows: firstly, the battery has short endurance mileage; and secondly, the charging time period. The problem of the quick charge of new forms of energy electric automobile is solved, need increase the power of charging pile, improve charging voltage and the charging current who fills electric pile output, and the direct current that fills electric pile of high-power is high up to 1000 ~ 1500V, fills the direct current who outputs and can reach 500 ~ 600A.
The traditional dry direct current charging gun is characterized in that a non-liquid cooling DC+ and DC-conducting terminal in the traditional dry direct current charging gun is connected with a power supply of an external charging pile through a dry integrated cable, the DC+ and DC-conducting wire of the dry integrated cable is a soft conducting wire with the size of 70 square millimeters, the maximum charging current capable of being carried is direct current 250A, if the charging current is larger than 250A, heat generated by the dry cable and the DC+ and DC-conducting terminal in the charging process is not easy to dissipate, and the temperature of a conductive jack is too high, so that fire disaster is easy to be caused. If the volume of the conductive jack in the direct current charging gun is increased to improve the current bearing capacity of the conductive jack, the overall weight of the charging gun is necessarily increased, the cost is increased, and inconvenience is brought to practical use.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a DC terminal liquid cooling structure for a direct current charging gun, which takes away heat generated in the charging process of a DC terminal and a cable connection part through a circulating liquid cooling agent, achieves the effect of cooling, and can effectively solve the technical problems that the DC terminal in the existing direct current charging gun is difficult to dissipate heat and potential safety hazards exist due to high temperature of a conductive jack.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
in order to achieve the technical purpose, the utility model adopts the following technical scheme:
the utility model provides a DC terminal liquid cooling structure for a direct current charging gun, which comprises a charging gun head, two DC terminals and a terminal pressing plate sleeved outside the DC terminals, wherein the front end of the DC terminal is inserted into an inner cavity of the charging gun head, and the terminal pressing plate is covered at the rear end of the charging gun head and is in buckle connection with the rear end of the charging gun head; the external sleeve of DC terminal is equipped with the liquid cooling device, is equipped with the liquid cooling agent passageway that is used for the circulation of liquid cooling agent in the inner chamber of liquid cooling device.
By adopting the technical scheme, the DC terminal is fixed in the charging gun head through the terminal pressing plate, the liquid cooling device is sleeved outside the DC terminal, and the liquid cooling agent circularly flows in the liquid cooling agent channel to quickly cool the junction of the cable and the DC terminal in the charging process, so that the charging gun is convenient to bear high-power current, the charging efficiency of the charging gun is improved, and the charging time is shortened.
In some possible embodiments, the liquid cooling device includes liquid cooling inner tube and liquid cooling outer tube, and the outside of DC terminal is located to the laminating of liquid cooling inner tube cover, and the outside of liquid cooling inner tube is located to the liquid cooling outer tube cover, and airtight cavity between liquid cooling outer tube and the liquid cooling inner tube forms the liquid cooling agent passageway, set up inlet and the liquid outlet that are linked together with the liquid cooling agent passageway on the liquid cooling outer tube for carry and export the refrigerant shape to be the liquid cooling circulation in the refrigerant passageway, carry out quick cooling to the DC terminal, buckle connection between liquid cooling outer tube and the terminal clamp plate.
In some possible embodiments, a dc+ conductive jack and a DC-conductive jack are arranged in the charging gun head, the DC terminal comprises a dc+ conductive terminal and a DC-conductive terminal, the front part of the dc+ conductive terminal is inserted into the dc+ conductive jack, the middle part of the dc+ conductive terminal is connected with the terminal pressing plate in a penetrating way, the rear part of the DC-conductive terminal is connected with the liquid cooling inner tube in a jointing way, and the front part of the DC-conductive terminal is inserted into the DC-conductive jack, the middle part of the DC-conductive terminal is connected with the terminal pressing plate in a penetrating way, and the rear part of the DC-conductive terminal is connected with the liquid cooling inner tube in a jointing way.
In some possible embodiments, the outer circular surface at the rear part of the DC terminal is annularly provided with a first positioning flange and a second positioning flange, the front end and the rear end of the liquid cooling inner pipe are respectively provided with a first annular clamping block and a second annular clamping block which extend along the radial direction, and the first annular clamping block is tightly connected with the first positioning flange and the second annular clamping block is tightly clamped with the second positioning flange, so that the liquid cooling inner pipe is tightly clamped and fixed on the outer surface of the DC terminal, the liquid cooling conduction effect of the liquid cooling agent is improved, and the cooling effect is improved.
In some possible embodiments, the outer diameters of the first annular clamping block and the second annular clamping block are larger than the outer diameter of the liquid cooling inner pipe, and the outer side surfaces of the first annular clamping block and the second annular clamping block are abutted against the inner side surface of the liquid cooling outer pipe, so that a liquid cooling agent channel for circulating liquid cooling agent is formed in a cavity enclosed among the first annular clamping block, the second annular clamping block, the outer wall of the liquid cooling inner pipe and the inner wall of the liquid cooling outer pipe.
In some possible embodiments, the outer circular surfaces of the first annular clamping block and the second annular clamping block are respectively provided with a first annular groove, an O-type liquid cooling sealing ring is arranged in the first annular groove, and interference fit is formed between the O-type liquid cooling sealing ring and the liquid cooling outer pipe for improving the tightness of the connection position between the liquid cooling inner pipe and the liquid cooling outer pipe.
In some possible embodiments, a third positioning flange is annularly arranged on the outer circular surface of the front part of the DC terminal, a second annular groove is arranged on the outer circular surface of the third positioning flange, an O-shaped terminal sealing ring is arranged in the second annular groove, and an interference fit is formed between the O-shaped terminal sealing ring and the charging gun head so as to improve the tightness of the connection position between the DC terminal and the charging gun head.
In some possible embodiments, a terminal fixing plate is arranged between the DC terminal and the terminal pressing plate, a third annular groove is formed in the outer circular surface of the third positioning flange, the front end of the terminal fixing plate is clamped with the third annular groove, the rear end of the terminal fixing plate is mutually abutted with the liquid cooling outer tube, and therefore overall stability of connection between the DC terminal and the liquid cooling outer tube and between the terminal fixing plate and the charging gun head is improved.
In some possible embodiments, the liquid cooling outer tube integrated into one piece, including two sleeves and connecting portion between the two, offered a inlet and a liquid outlet on the connecting portion, inlet and liquid outlet all communicate the sleeve of both sides to guarantee that coolant in the liquid cooling agent passageway forms the return circuit that flows in, flows, and the accessible coolant will charge the heat that the in-process DC terminal surface produced in time takes away and carries out quick cooling, avoids the DC terminal high temperature to appear the accident.
In some possible embodiments, a clamping groove is formed on the outer side surface of the liquid cooling outer tube, and a clamping hook matched with the clamping groove is formed on the terminal pressing plate to fixedly connect the liquid cooling outer tube with the terminal pressing plate in a clamping manner; the charging gun is characterized in that a slot hole is formed in the side face of the rear end of the charging gun head, and a limiting block matched with the slot hole is arranged on the terminal pressing plate and used for fixedly connecting the terminal pressing plate with the charging gun head in a clamping mode.
The beneficial effects of the utility model are as follows:
according to the utility model, the liquid cooling device is sleeved outside the rear end of the DC+ and DC-conductive terminal, a liquid cooling agent channel is formed between the liquid cooling appearance and the liquid cooling inner tube, and heat generated at the connection position of the cable and the DC terminal is taken away by the circulating liquid cooling agent in the charging process to quickly cool down, so that the charging gun is convenient to bear high-power current, the charging efficiency of the charging gun is improved, the charging time is shortened, the overall weight of the charging gun is reduced, and the charging operation is convenient for operators to operate easily.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic perspective view of a DC terminal liquid cooling structure for a DC charging gun according to the present utility model;
FIG. 2 is a schematic cross-sectional plan view of a DC terminal liquid cooling structure for a DC charging gun according to the present utility model;
FIG. 3 is an enlarged view of a portion of FIG. 2 at "A";
FIG. 4 is a schematic perspective view showing a liquid cooling structure of a DC terminal for a DC charging gun according to the present utility model;
FIG. 5 is a side view of a DC terminal liquid cooling structure for a DC charging gun according to the present utility model;
FIG. 6 is a schematic diagram of an exploded view of a DC terminal liquid cooling structure for a DC charging gun according to the present utility model;
fig. 7 is another schematic explosion diagram of the DC terminal liquid cooling structure for the direct current charging gun according to the present utility model.
The reference numerals in the figures illustrate: 1. charging gun heads; 11. dc+ conductive jack; 12. DC-conductive jacks; 13. a slot hole; 2. a DC terminal; 21. dc+ conductive terminals; 22. a DC-conductive terminal; 23. a first positioning flange; 24. a second positioning flange; 25. a third positioning flange; 26. a second annular groove; 27. an O-terminal seal ring; 28. a third annular groove; 3. a terminal pressing plate; 31. a clamping hook; 32. a limiting block; 4. a liquid cooling device; 41. a liquid-cooled inner tube; 411. a first annular clamping block; 412. the second annular clamping block; 413. a first annular groove; 42. a liquid-cooled outer tube; 421. a sleeve; 422. a connection part; 423. a clamping groove; 43. a liquid inlet; 44. a liquid outlet; 45. an O-type liquid cooling sealing ring; 5. a liquid coolant passage; 6. and a terminal fixing plate.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation.
In the description of the present embodiment, it should be noted that, directions or positional relationships indicated by terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "front", "rear", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience in describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element referred to has a specific direction, is configured and operated in a specific direction, and therefore, should not be construed as limiting the present utility model. The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, in one embodiment of the present utility model, there is provided a DC terminal liquid cooling structure for a direct current charging gun, including a charging gun head 1, two DC terminals 2, and a terminal pressing plate 3 sleeved outside the DC terminals 2. The front end of the DC terminal 2 is inserted into the inner cavity of the charging gun head 1, and the terminal pressing plate 3 is covered at the rear end of the charging gun head 1 and is buckled with the charging gun head 1 to form fixed connection. The outside cover of DC terminal 2 is equipped with liquid cooling device 4, is equipped with the liquid cooling agent passageway 5 that is used for the circulation of liquid cooling agent in the inner chamber of liquid cooling device 4, and the liquid cooling agent through the circulation flow in the liquid cooling agent passageway 5 takes away in time the heat that DC terminal and cable junction produced in the charging process and carries out quick cooling.
Referring to fig. 1, the liquid cooling apparatus 4 includes two independent liquid cooling inner pipes 41 and one liquid cooling outer pipe 42 having two sleeves. Referring to fig. 4, the liquid cooling inner tube 41 is fitted and sleeved on the outer side of the DC terminal 2, the liquid cooling outer tube 42 is sleeved on the outer side of the liquid cooling inner tube 41, a liquid cooling agent channel 5 is formed by a closed cavity between the liquid cooling outer tube 42 and the liquid cooling inner tube 41, a liquid inlet 43 and a liquid outlet 44 which are communicated with the liquid cooling agent channel 5 are formed on the liquid cooling outer tube 42, and the liquid inlet 43 and the liquid outlet 44 are respectively connected with an external refrigerating device and are used for conveying and outputting a refrigerant in the refrigerant channel 5 to form a liquid cooling cycle so as to rapidly cool the DC terminal 2.
Referring to fig. 4, 5 and 7, the DC terminal 2 includes a dc+ conductive terminal 21 and a DC-conductive terminal 22, and a dc+ conductive jack 11 and a DC-conductive jack 12 are provided in the charging gun head 1. The front part of the DC+ conductive terminal 21 is inserted in the DC+ conductive jack 11, the middle part is connected with the terminal pressing plate 3 in a penetrating way, the rear part is attached with the liquid cooling inner pipe 41 in a sleeving way, the front part of the DC-conductive terminal 22 is inserted in the DC-conductive jack 12, the middle part is connected with the terminal pressing plate 3 in a penetrating way, and the rear part is attached with the liquid cooling inner pipe 41 in a sleeving way.
Referring to fig. 2, 3 and 6, a first positioning flange 23 and a second positioning flange 24 are annularly arranged on the outer circumferential surface of the rear part of the dc terminal 2, and a first annular clamping block 411 and a second annular clamping block 412 which extend along the radial direction are arranged at the front end and the rear end of the liquid cooling inner tube 41. Grooves which are mutually matched and clamped with the first positioning flange 23 and the second positioning flange 24 are formed in the inner side surfaces of the first annular clamping block 411 and the second annular clamping block 412. The first annular clamping block 411 and the first positioning flange 23, and the second annular clamping block 412 and the second positioning flange 24 are mutually and tightly buckled, so that the liquid cooling inner pipe 41 is tightly clamped and fixed on the outer surface of the DC terminal 2, the liquid cooling conduction effect of the liquid cooling agent is improved, and the cooling effect is improved. The outer diameters of the first annular clamping block 411 and the second annular clamping block 412 are larger than the outer diameter of the liquid cooling inner pipe 41, and the outer side surfaces of the first annular clamping block 411 and the second annular clamping block 412 are abutted against the inner side surface of the liquid cooling outer pipe 42, so that a liquid cooling agent channel 5 for circulating liquid cooling agent is formed in a cavity enclosed among the first annular clamping block 411, the second annular clamping block 412, the outer wall of the liquid cooling inner pipe 41 and the inner wall of the liquid cooling outer pipe 42.
As shown in fig. 2 to 4, the outer circumferential surfaces of the first annular clamping block 411 and the second annular clamping block 412 are respectively provided with a first annular groove 413, and an O-type liquid cooling sealing ring 45 is arranged in the first annular groove 413. An interference fit is formed between the O-shaped liquid cooling sealing ring 45 and the liquid cooling outer tube 42, so as to improve the tightness of the connection position between the liquid cooling inner tube 41 and the liquid cooling outer tube 42. The outer circle surface of the front part of the DC terminal 2 is annularly provided with a third positioning flange 25, the outer circle surface of the third positioning flange 25 is provided with a second annular groove 26, an O-shaped terminal sealing ring 27 is arranged in the second annular groove 26, and interference fit is formed between the O-shaped terminal sealing ring 27 and the charging gun head 1 so as to improve the tightness of the connection position between the DC terminal 2 and the charging gun head 1. The dc+ conductive jack 11 and the DC-conductive jack 12 are reducing holes, and the third positioning flange 25 is respectively in clamping fit with the dc+ conductive jack 11 and the DC-conductive jack 12 to limit the plugging position of the DC terminal 2 in the charging gun head 1.
As shown in fig. 4 and 6, a terminal fixing plate 6 is provided between the DC terminal 2 and the terminal pressing plate 3, and a third annular groove 28 is provided on the outer circumferential surface of the third positioning flange 25. The front end of the terminal fixing plate 6 is clamped with the third annular groove 28, and the rear end of the terminal fixing plate 6 is mutually abutted with the liquid cooling outer tube 42, so that the overall stability of connection between the DC terminal 2 and the liquid cooling outer tube 42 and the charging gun head 1 is improved.
Referring to fig. 6 and 7, in another embodiment of the present utility model, the liquid-cooled outer tube 42 is integrally formed and includes two sleeves 421 and a connection 422 therebetween. The connecting part 422 is provided with the liquid inlet 43 and the liquid outlet 44, and the liquid inlet 43 and the liquid outlet 44 are both communicated with the sleeves 421 on two sides, so that the coolant in the liquid coolant channel 5 is guaranteed to form a loop flowing in and out, and the flowing coolant can timely take away the heat generated on the surface of the DC terminal 2 in the charging process to quickly cool, thereby avoiding accidents of the DC terminal at high temperature.
Referring to fig. 1 and 7, in another embodiment of the present utility model, a clamping groove 423 is formed on an outer side surface of the liquid cooling outer tube 42, and a hook 31 matched with the clamping groove 423 is formed on the terminal pressing plate 3 to perform a snap-fit connection between the liquid cooling outer tube 42 and the terminal pressing plate 3. The rear end side of the charging gun head 1 is provided with a slot 13, and the terminal pressing plate 3 is provided with a limiting block 32 matched with the slot 13 for carrying out buckle fixed connection between the terminal pressing plate 3 and the charging gun head 1.
While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Therefore, all technical solutions which are available to the person skilled in the art based on the prior art through logic analysis, reasoning or limited experiments according to the inventive concept are within the scope of protection defined by the claims.
Claims (10)
1. The DC terminal liquid cooling structure for the direct current charging gun is characterized by comprising a charging gun head (1), two DC terminals (2) and a terminal pressing plate (3) sleeved outside the DC terminals (2), wherein the front end of the DC terminal (2) is inserted into an inner cavity of the charging gun head (1), and the terminal pressing plate (3) is covered at the rear end of the charging gun head (1) and is connected with a buckle; the external sleeve of DC terminal (2) is equipped with liquid cooling device (4), is equipped with liquid cooling agent passageway (5) that are used for the circulation of liquid cooling agent in the inner chamber of liquid cooling device (4).
2. The DC terminal liquid cooling structure for a direct current charging gun according to claim 1, wherein the liquid cooling device (4) comprises a liquid cooling inner tube (41) and a liquid cooling outer tube (42), the liquid cooling inner tube (41) is attached to the outer side of the DC terminal (2), the liquid cooling outer tube (42) is sleeved outside the liquid cooling inner tube (41), a liquid cooling agent channel (5) is formed in a closed cavity between the liquid cooling outer tube (42) and the liquid cooling inner tube (41), a liquid inlet (43) and a liquid outlet (44) which are communicated with the liquid cooling agent channel (5) are formed in the liquid cooling outer tube (42), and the liquid cooling outer tube (42) is connected with the terminal pressing plate (3) in a buckling mode.
3. The DC terminal liquid cooling structure for a direct current charging gun according to claim 2, wherein a dc+ conductive jack (11) and a DC-conductive jack (12) are arranged in the charging gun head (1), the DC terminal (2) comprises a dc+ conductive terminal (21) and a DC-conductive terminal (22), the front part of the dc+ conductive terminal (21) is inserted into the dc+ conductive jack (11), the middle part is connected with the terminal pressing plate (3) in a penetrating way, the rear part is connected with the liquid cooling inner tube (41) in a sleeving way, and the front part of the DC-conductive terminal (22) is inserted into the DC-conductive jack (12), the middle part is connected with the terminal pressing plate (3) in a penetrating way, and the rear part is connected with the liquid cooling inner tube (41) in a sleeving way.
4. The DC terminal liquid cooling structure for a DC charging gun according to claim 2, wherein a first positioning flange (23) and a second positioning flange (24) are annularly arranged on an outer circular surface at the rear part of the DC terminal (2), a first annular clamping block (411) and a second annular clamping block (412) extending along the radial direction are respectively arranged at the front end and the rear end of the liquid cooling inner tube (41), and the first annular clamping block (411) and the first positioning flange (23) and the second annular clamping block (412) and the second positioning flange (24) are in mutual fastening tight connection.
5. The DC terminal liquid cooling structure for a direct current charging gun according to claim 4, wherein the outer diameters of the first annular clamping block (411) and the second annular clamping block (412) are larger than the outer diameter of the liquid cooling inner tube (41), and the outer side surfaces of the first annular clamping block (411) and the second annular clamping block (412) are abutted against the inner side surface of the liquid cooling outer tube (42).
6. The DC terminal liquid cooling structure for a direct current charging gun according to claim 4, wherein the outer circumferential surfaces of the first annular clamping block (411) and the second annular clamping block (412) are respectively provided with a first annular groove (413), an O-shaped liquid cooling sealing ring (45) is arranged in the first annular groove (413), and interference fit is formed between the O-shaped liquid cooling sealing ring (45) and the liquid cooling outer tube (42).
7. The DC terminal liquid cooling structure for a direct current charging gun according to claim 2, wherein a third positioning flange (25) is annularly arranged on the outer circular surface of the front portion of the DC terminal (2), a second annular groove (26) is arranged on the outer circular surface of the third positioning flange (25), an O-shaped terminal sealing ring (27) is arranged in the second annular groove (26), and interference fit is formed between the O-shaped terminal sealing ring (27) and the charging gun head (1).
8. The DC terminal liquid cooling structure for a direct current charging gun according to claim 7, wherein a terminal fixing plate (6) is arranged between the DC terminal (2) and the terminal pressing plate (3), a third annular groove (28) is arranged on the outer circular surface of the third positioning flange (25), the front end of the terminal fixing plate (6) is clamped with the third annular groove (28), and the rear end of the terminal fixing plate (6) is abutted with the liquid cooling outer tube (42).
9. The DC terminal liquid cooling structure for a direct current charging gun according to claim 2, wherein the liquid cooling outer tube (42) is integrally formed and comprises two sleeves (421) and a connecting part (422) between the two sleeves, the connecting part (422) is provided with a liquid inlet (43) and a liquid outlet (44), and the liquid inlet (43) and the liquid outlet (44) are both communicated with the sleeves (421) on two sides.
10. The DC terminal liquid cooling structure for a direct current charging gun according to claim 2, wherein a clamping groove (423) is formed on the outer side surface of the liquid cooling outer tube (42), and a clamping hook (31) matched with the clamping groove (423) is formed on the terminal pressing plate (3); a slot hole (13) is formed in the side face of the rear end of the charging gun head (1), and a limiting block (32) matched with the slot hole (13) is arranged on the terminal pressing plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321882109.3U CN220518006U (en) | 2023-07-17 | 2023-07-17 | DC terminal liquid cooling structure for direct current charging gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321882109.3U CN220518006U (en) | 2023-07-17 | 2023-07-17 | DC terminal liquid cooling structure for direct current charging gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220518006U true CN220518006U (en) | 2024-02-23 |
Family
ID=89935234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321882109.3U Active CN220518006U (en) | 2023-07-17 | 2023-07-17 | DC terminal liquid cooling structure for direct current charging gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220518006U (en) |
-
2023
- 2023-07-17 CN CN202321882109.3U patent/CN220518006U/en active Active
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