Charging socket

Abstract

The utility model discloses a charging socket. The charging socket comprises a socket panel, a motor lock, a socket shell and a terminal assembly, the motor lock is arranged above the socket panel. And the socket shell is inserted into the first mounting cavity of the socket panel. The socket shell is provided with a second installation cavity for installing the terminal assembly. The terminal assembly comprises a plurality of DC terminals arranged side by side, one end, inserted in the socket shell, of each DC terminal is provided with a contact pin, one end, extending out of the socket shell, of each DC terminal is provided with a copper bar, the contact area of the DC terminals and an external connecting end is increased through the structural arrangement of the copper bars, and the electric energy transmission efficiency and the heat exchange efficiency are effectively improved. Threaded holes are formed in the copper bars. Compared with a traditional bolt and nut connection mode, the clamping force of the nut is reduced, the physical loss of the connection end of the charging socket and the charging pile is effectively reduced, the service life of a product is prolonged, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy electric automobile field, concretely relates to a charging socket. BACKGROUND

[0002] With the continuous development of electric vehicle market, the demand of electric commercial vehicle for high-power charging is increasingly urgent, which has the characteristics of high charging frequency, large charging demand and urgent charging time, and has the problem of complex and poor natural environment around in the charging operation process. How to realize efficient and rapid high-power electric energy transmission and cope with the influence of bad environment on the charging process all put forward higher requirements for megawatt high-power charging socket products. At present, megawatt high-power charging socket products still have great development space in technology, standard and market application and the like. SUMMARY

[0003] The utility model aims at solving the above-mentioned prior art's insufficient, provides a kind of charging socket, while meeting the demand of high-power charging, improve the protection capability of charging socket, effectively enhance the safety and stability of charging process.

[0004] The utility model provides a kind of charging socket, comprising:

[0005] Socket panel has first installation cavity;

[0006] Motor lock is located above the socket panel;

[0007] Socket shell is inserted into the first installation cavity, and the socket shell has second installation cavity;

[0008] Terminal assembly, the terminal assembly is fixedly installed in the socket shell;The terminal assembly includes a plurality of DC terminals arranged side by side;The DC terminal is inserted in one end in the socket shell and has a pin;The one end of the DC terminal that extends from the socket shell has copper bar;Threaded hole is formed in the copper bar, and the threaded hole is provided with screw for being fixedly connected with external charging pile.

[0009] In an embodiment, the number of DC terminals is two.

[0010] In an embodiment, two threaded holes are formed in each copper bar.

[0011] In an embodiment, the pin is provided with a protection piece away from one end of the copper bar.

[0012] In an embodiment, the motor lock has a motor lock shell, the motor lock shell is provided with a motor, a cam and a lock rod in driving connection with the motor, and the cam drives the lock rod to move in vertical direction.

[0013] In an embodiment, a terminal sealing ring is arranged between the terminal assembly and the socket shell.

[0014] In an embodiment, the terminal assembly further has PE terminals and a plurality of signal terminals, and the terminal sealing ring comprises a DC sealing ring arranged between the DC terminals and the socket shell, a PE sealing ring arranged between the PE terminals and the socket shell, and a signal sealing ring arranged between the signal terminals and the socket shell.

[0015] In an embodiment, the terminal sealing ring is a double-layer O-shaped sealing ring.

[0016] In an embodiment, the socket shell has an abutting plate, and the socket panel has an abutting groove at one end thereof facing the abutting plate, and the groove bottom of the abutting groove has an abutting surface, and a shell sealing ring is arranged between the abutting surface and the abutting plate to achieve sealed connection between the socket shell and the socket panel.

[0017] In an embodiment, the charging socket further comprises:

[0018] A support frame is arranged in the second mounting cavity, and the support frame is provided with a plurality of support holes for mounting terminal assemblies;

[0019] A locking cover is fixedly installed at one end of the socket shell facing the copper bar.

[0020] A wire sealing body is arranged between the support frame and the locking cover.

[0021] The technical scheme of the charging socket comprises a socket panel, a motor lock, a socket shell and a terminal assembly. The motor lock is arranged above the socket panel. The socket shell is inserted into the first mounting cavity of the socket panel. The socket shell has a second mounting cavity for mounting the terminal assembly. The terminal assembly comprises a plurality of DC terminals arranged side by side, and one end of the DC terminal inserted into the socket shell has a pin, and the other end of the DC terminal extending out of the socket shell has a copper bar. The structure of the copper bar increases the contact area of the DC terminal and the external connecting end, effectively improving the electric energy transmission efficiency and heat exchange efficiency. Threaded holes are arranged on the copper bar. Screws for fixedly connecting the DC terminals and the external connecting end are arranged in the threaded holes. Compared with the traditional bolt and nut connection mode, the clamping force of the nut is reduced, the physical loss of the charging socket and the charging pile connecting end is effectively reduced, the service life of the product is improved, and the use cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0023] Figure 1 It is a three-dimensional structure schematic diagram of one embodiment of the charging socket of the present application.

[0024] Figure 2 It is an exploded view of one embodiment of the charging socket of the present application.

[0025] Figure 3 It is a front view of one embodiment of the charging socket of the present application.

[0026] Figure 4 It is a top view of one embodiment of the charging socket of the present application.

[0027] Figure 5 It is Figure 4 the sectional view along the line A-A in figure.

[0028] Figure 6 It is Figure 4 the sectional view along the line B-B in figure.

[0029] Figure 7 It is a three-dimensional structure schematic diagram of one embodiment of the socket shell of the present application.

[0030] Figure 8 It is a three-dimensional structure schematic diagram of one embodiment of the socket panel of the present application.

[0031] Figure 9 It is a top view of one embodiment of the DC terminal of the present application.

[0032] Figure 10 It is a left view of one embodiment of the DC terminal of the present application.

[0033] Explanation of figure mark:

[0034] Reference Name Reference Name Reference Name 1 Socket housing 3 Motor lock 52 PE terminal 1a Second mounting cavity 31 Locking rod 53 Signal terminal 11 Plug-in part 4 Support frame 6 Sealing body 12 Abutting plate 5 Terminal assembly 7 Locking cover 12a Connecting hole 51 DC terminal 8 Housing sealing ring 2 Socket panel 511 Copper bar 9 Terminal sealing ring 2a First mounting cavity 511a Threaded hole 91 DC sealing ring 2b Abutting groove 512 Pin 92 PE sealing ring 21 Abutting surface 513 Protection piece 93 Signal sealing ring

[0035] The realization, functional characteristics and advantages of the present application will be further explained by combining with embodiments and referring to the drawings. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0038] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. 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.

[0039] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0040] With the continuous development of the electric vehicle market, the demand for high-power charging of electric commercial vehicles is increasingly urgent, which has the characteristics of high charging frequency, large charging demand and urgent charging time, and has the problem of complex and harsh surrounding natural environment in the charging operation process. How to realize efficient and fast high-power electric energy transmission and cope with the influence of harsh environment on the charging process all put forward higher requirements for megawatt high-power charging socket products. At present, megawatt high-power charging socket products still have great development space in terms of technology, standards and market application.

[0041] The utility model provides a charging socket. Please refer to Figures 1 to 10 The charging socket comprises: a socket panel 2 having a first mounting cavity 2a; a motor lock 3 arranged above the socket panel 2; a socket shell 1 inserted into the first mounting cavity 2a, the socket shell 1 having a second mounting cavity 1a; a terminal assembly 5 fixedly installed in the socket shell 1; the terminal assembly 5 comprises a plurality of DC terminals 51 arranged side by side; one end of the DC terminal 51 inserted into the socket shell 1 has a pin 512, and the other end of the DC terminal 51 protruding from the socket shell 1 has a copper bar 511; a threaded hole 511a is formed in the copper bar 511, and a screw for fixedly connecting an external charging pile is arranged in the threaded hole 511a.

[0042] In the embodiment, a threaded hole is arranged in the side end face of the socket panel 2 facing the motor lock 3, a through hole is arranged in the side end face of the motor lock 3 facing the socket panel 2, and the motor lock 3 is fixedly installed above the socket panel 2 by means of a screw. During charging, the charging gun is inserted into the charging socket, and the motor lock 3 locks the charging gun to prevent the charging gun from falling off during charging. The socket panel 2 is provided with a first mounting cavity 2a for mounting the socket shell 1. The socket shell 1 has a plug-in part 11 inserted into the first mounting cavity 2a. The socket shell 1 is provided with a second mounting cavity 1a for mounting the terminal assembly 5. The terminal assembly 5 comprises a plurality of DC terminals 51 arranged side by side. Preferably, the terminal assembly 5 comprises two DC terminals 51 arranged side by side. One end of the DC terminal 51 is inserted into the socket shell 1, and the other end protrudes from the socket shell 1. One end of the DC terminal 51 inserted into the socket shell 1 has a pin 512, and the outer wall of the pin 512 has a clamping ring. The pin 512 is inserted into the second mounting cavity 1a, and the clamping ring is in abutment with the inner wall of the socket shell 1 to limit and fix the pin 512. The other end of the DC terminal 51 protruding from the socket shell 1 has a copper bar 511. The structure of the copper bar 511 increases the contact area between the DC terminal 51 and the external connecting end, effectively improving the electric energy transmission efficiency and heat exchange efficiency. The copper bar 511 has an upper plane and a lower plane arranged in parallel. A threaded hole 511a extending from the upper plane to the lower plane is formed in the copper bar 511. A screw for connecting the DC terminal 51 and the external charging pile is arranged in the threaded hole 511a. The connection between the conventional socket terminal and the charging pile is mainly achieved by means of a bolt and a nut. Understandably, the screw is used for connection, which reduces the clamping force of the nut compared with the conventional scheme, reduces the physical loss of the connecting end of the charging socket and the charging pile, prolongs the service life of the product, and reduces the use cost. Preferably, two threaded holes 511a are arranged on each copper bar 511 to effectively improve the connection stability of the socket and the external charging pile.

[0043] Further, please refer to Figure 9 and Figure 10The end of the pin 512 away from the copper bar 511 is provided with a protection piece 513.

[0044] Specifically, the protection piece 513 is arranged at the end of the pin 512, effectively preventing injuries caused by accidental insertion of fingers, and has high safety. The protection piece 513 is detachably connected with the pin 512. A hexagonal groove is formed in the end surface of the protection piece 513 away from the pin 512, facilitating installation and disassembly.

[0045] Further, please refer to Figure 1 and Figure 5 The motor lock 3 has a motor lock housing, a motor (not shown in the figure) is arranged in the motor lock housing, a cam (not shown in the figure) in transmission connection with the motor, and a lock rod 31, the cam drives the lock rod 31 to move in the vertical direction.

[0046] Specifically, the motor lock housing is provided with a first through hole on the side facing the socket panel 2, the lock rod 31 extends out of the first through hole. The socket panel 2 is provided with a second through hole on the side facing the motor lock 3, the lock rod 31 extends into the second through hole. A motor is arranged in the motor lock housing, the motor drives the cam to rotate, the cam is vertically arranged, the edge of the cam abuts against the lock rod 31, the radius of the contact between the cam and the lock rod 31 changes with the rotation of the cam, and the lock rod 31 moves in the vertical direction. After the charging gun is inserted into the charging socket, the cam drives the lock rod 31 to move downward, the lock rod 31 sequentially passes through the first through hole and the second through hole downward, extends into the socket panel 2, and is inserted into the corresponding locking hole of the charging gun, thereby completing the position locking of the charging gun and the charging socket. After charging, before the charging gun is pulled out, the motor drives the cam to rotate, and the lock rod 31 moves upward, and the lock rod 31 is separated from the locking hole of the charging gun, so that the charging gun can be smoothly separated from the charging socket. The motor lock 3 realizes the locking and unlocking of the charging gun and the charging socket through the movement of the lock rod 31.

[0047] Further, please refer to Figure 2 、 Figure 5 and Figure 6 A terminal sealing ring 9 is arranged between the terminal assembly 5 and the socket housing 1.

[0048] Specifically, the terminal assembly 5 includes two DC terminals 51, a PE terminal 52, and a plurality of signal terminals 53. The terminal sealing ring 9 includes a DC sealing ring 91 arranged between the DC terminals 51 and the socket shell 1, a PE sealing ring 92 arranged between the PE terminal 52 and the socket shell 1, and a signal sealing ring 93 arranged between the signal terminals 53 and the socket shell 1. It can be understood that the DC terminals 51, the PE terminal 52, and the signal terminals 53 are all provided with sealing grooves for accommodating the terminal sealing ring 9. Preferably, the terminal sealing ring 9 is a double-layer O-shaped sealing ring. It can be understood that the double-layer wave crest structure of the terminal sealing ring 9 improves the filling capacity compared with the traditional sealing ring, the sealing effect is better, the influence of the external environment is effectively reduced, and the stability of the internal structure of the charging socket is increased.

[0049] Further, please refer to Figure 5 , Figure 6 , Figure 7 and Figure 8 , the socket shell 1 has an abutment plate 12; the socket panel 2 is provided with an abutment groove 2b at one end facing the abutment plate 12, the groove bottom of the abutment groove 2b has an abutment surface 21, and the abutment surface 21 and the abutment plate 12 have a shell sealing ring 8 therebetween, realizing the sealed connection between the socket shell 1 and the socket panel 2.

[0050] Specifically, the abutment plate 12 and the abutment groove 2b are matched in shape and size, the plug-in part 11 of the socket shell 1 is inserted into the socket panel 2, the abutment plate 12 is inserted into the abutment groove 2b, the abutment plate 12 and the abutment surface 21 are provided with the shell sealing ring 8 therebetween, the shell sealing ring 8 is sleeved on the outer wall of the plug-in part 11, realizing the sealed connection between the socket shell 1 and the socket panel 2. Further, the socket shell 1 and the socket panel 2 are fastened by self-tapping screws, enhancing the installation stability of the socket shell 1 and the socket panel 2.

[0051] Further, please refer to Figure 2 , Figure 5 and Figure 6 , the charging socket further includes: a support frame 4 arranged in the second installation cavity, the support frame 4 is provided with a plurality of support holes for installing the terminal assembly 5; a locking cover 7 fixedly installed at one end of the socket shell 1 facing the copper bar 511; and a wire sealing body 6 arranged between the support frame 4 and the locking cover 7.

[0052] Specifically, the locking cover 7 is provided with an opening for the copper bar 511 to extend out. The terminal assembly 5 is installed in the support hole of the support frame 4, and the support frame 4 is fixedly installed with the socket shell 1 by screws. The locking cover 7 is installed at the opening of the socket shell 1 for the copper bar 511 to extend out, and the wire sealing body 6 is arranged between the locking cover 7 and the support frame 4, increasing the structural sealing of the charging socket, preventing foreign matters and liquids from entering the charging socket, and improving the safety and stability of the charging socket during use.

[0053] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary, and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application without departing from the principles and spirit of the present application.

Claims

1. A charging socket, characterized in that, include: The socket panel (2) has a first mounting cavity (2a); A motor lock (3) is located above the socket panel (2); A socket housing (1) is inserted into the first mounting cavity (2a), and the socket housing (1) has a second mounting cavity (1a); Terminal assembly (5) is fixedly installed inside the socket housing (1); the terminal assembly (5) includes a plurality of DC terminals (51) arranged side by side; one end of the DC terminal (51) inserted into the socket housing (1) has a pin (512), and the other end of the DC terminal (51) extending out of the socket housing (1) has a copper busbar (511); the copper busbar (511) has a threaded hole (511a), and the threaded hole (511a) has a screw for fixed connection with an external charging pile.

2. The charging socket as described in claim 1, characterized in that, The number of DC terminals (51) is two.

3. The charging socket as described in claim 1, characterized in that, Each of the copper busbars (511) has two threaded holes (511a).

4. The charging socket as described in claim 1, characterized in that, The end of the pin (512) away from the copper busbar (511) is provided with an anti-contact element (513).

5. The charging socket as described in claim 1, characterized in that, The motor lock (3) has a motor lock housing, which contains a motor, a cam connected to the motor, and a locking rod (31). The cam drives the locking rod (31) to move vertically.

6. The charging socket as described in claim 1, characterized in that, A terminal sealing ring (9) is provided between the terminal assembly (5) and the socket housing (1).

7. The charging socket as described in claim 6, characterized in that, The terminal assembly (5) also has a PE terminal (52) and a plurality of signal terminals (53). The terminal sealing ring (9) includes a DC sealing ring (91) disposed between the DC terminal (51) and the socket housing (1), a PE sealing ring (92) disposed between the PE terminal (52) and the socket housing (1), and a signal sealing ring (93) disposed between the signal terminal (53) and the socket housing (1).

8. The charging socket as described in claim 7, characterized in that, The terminal sealing ring (9) is a double-layer O-ring.

9. The charging socket as described in claim 1, characterized in that, The socket housing (1) has an abutment plate (12); the socket panel (2) has an abutment groove (2b) at one end facing the abutment plate (12), the bottom of the abutment groove (2b) has an abutment surface (21), and a housing sealing ring (8) is provided between the abutment surface (21) and the abutment plate (12) to achieve a sealed connection between the socket housing (1) and the socket panel (2).

10. The charging socket as described in claim 1, characterized in that, Also includes: A support frame (4) is provided in the second mounting cavity, and the support frame (4) has a plurality of support holes for mounting the terminal assembly (5); A locking cover (7) is fixedly installed on one end of the socket housing (1) facing the copper busbar (511); A sealing body (6) is provided between the support frame (4) and the locking cover (7).

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