Side outgoing line charging socket

Abstract

The invention belongs to the field of connectors especially suitable for charging electric vehicles, and particularly relates to a side outgoing line charging socket. The invention provides a side outlet charging socket in order to enable the same side outlet charging socket to be suitable for various situations with different outlet angles. The side outgoing line charging socket comprises a socket body with power contact pieces and side outgoing line shells, each power contact piece is used for being electrically connected with a power wire, and each power contact piece is provided with one side outgoing line shell. Each side wire outlet shell comprises an accommodating cavity, a piece inlet hole and a wire penetrating hole, and the accommodating cavity is used for accommodating an electric connection part of a power contact piece and a power wire; the hole wall of the threading hole is provided with an outgoing line sealing structure, and the plugging part of the socket body and the side outgoing line housing is provided with an incoming piece sealing structure. And each power lead is led out through one side lead-out shell, so that the lead-out sealing structure and the side lead-out shell are not influenced by the change of the distance between different power leads.

Description

Technical Field

[0001] The invention belongs to the field of connectors particularly suitable for charging electric vehicles, and in particular relates to a side-outlet charging socket. Background Art

[0002] In new energy vehicles, due to limited space, side-outlet charging sockets are often used to reduce the overall height of the socket, making it easier to arrange the socket inside the vehicle body.

[0003] like Figure 1 As shown, the side outlet charging socket includes a socket body 1 and a side outlet housing 2. The socket body 1 is provided with a positive power contact, a negative power contact and a grounding contact. The positive wire and the negative wire are respectively connected to the corresponding power contacts, and the grounding wire is connected to the grounding contact. The side outlet housing 2 is provided with a receiving cavity for accommodating the positive wire, the negative wire and the grounding wire, and the side outlet housing 2 has an outlet terminal 3. The outlet terminal 3 has a positive wire outlet for the positive wire to pass through, a negative wire outlet for the negative wire to pass through, and a grounding wire outlet for the grounding wire to pass through. At this time, the positive wire, the negative wire and the grounding wire all use the same side outlet housing 2 for outlet.

[0004] When the outlet angle changes, the distance between each outlet port 4 of the side outlet housing 2 and the corresponding contact piece changes, thereby causing the distance between any two parallel wires at the outlet terminal 3 to change. Therefore, the relative positions of the positive wire outlet, the negative wire outlet and the ground wire outlet must be redesigned, and the sealing structure between the outlet terminal 3 and the wires also needs to be redesigned.

[0005] For example, a Chinese invention patent application with application publication number CN106450912A and application publication date 2017.02.22 discloses a charging socket assembly, including a DC socket (equivalent to a DC socket body), a DC cable cover (equivalent to a DC side outlet housing) installed on the DC socket, a circle of outer adjustment grooves on the DC socket, and a circle of inner adjustment blocks on the DC cable cover. After the DC cable cover rotates a set angle, the DC cable cover can cooperate with the circumferential stop of the DC socket to adjust the outlet angle.

[0006] Similarly, the charging socket assembly also includes an AC socket (equivalent to the AC socket body), on which is installed an AC cable cover (equivalent to the AC side outlet housing), and the AC socket and the AC cable cover are also respectively provided with an outer adjustment groove and an inner adjustment block, so as to adjust the outlet angle of the AC cable cover.

[0007] However, in the above-mentioned charging socket assembly, all wires connected to the DC socket are connected through the same DC cable cover, and all wires connected to the AC socket are connected through the same AC cable cover. Therefore, when the outlet angle of the wires changes, the structure of the cable cover needs to be redesigned, and at the same time, the sealing structure at the outlet end of the cable cover also needs to be redone. Summary of the invention

[0008] The object of the present invention is to provide a side outlet charging socket to solve the technical problem that the side outlet housing and the sealing structure between the wire and the side outlet housing need to be redesigned when the socket outlet angle is changed.

[0009] To achieve the above purpose, the technical solution of the side outlet charging socket provided by the present invention is:

[0010] A side-outlet charging socket comprises a socket body with a power contact and a side-outlet housing for plugging with the socket body, each power contact is respectively used to electrically connect a power wire, and each power contact is equipped with a side-outlet housing; each side-outlet housing comprises a accommodating cavity, an entry hole for a single power contact to extend into, and a threading hole for a single power wire to pass into, the accommodating cavity is connected with the entry hole and the threading hole, and the accommodating cavity is used to accommodate the electrical connection between the power contact and the power wire; a wire outlet sealing structure for sealing the threading hole and the power wire is provided at the hole wall of the threading hole, and an entry sealing structure is provided at the plugging point of the socket body and the side-outlet housing.

[0011] Furthermore, one of the socket body and the side outlet housing is provided with multiple grooves, and the other is provided with protrusions matching the grooves, all grooves are evenly spaced along the same circumference, the number of protrusions is not greater than the number of grooves, and the grooves and protrusions cooperate along the circumferential stop.

[0012] Furthermore, the side outlet housing is an "L"-shaped housing, which includes a transverse portion and a longitudinal portion, the transverse portion is used to accommodate part of the power wires, the longitudinal portion is used to accommodate part of the power contacts, and the junction of the transverse portion and the longitudinal portion is used to accommodate the connection between the power contacts and the power wires.

[0013] Furthermore, the side-outlet charging socket also includes a screw for fixing the connection terminal of the power wire to the power contact piece, the axis of the screw coincides with the axis of the power contact piece, and the side-outlet housing is also provided with a mounting hole for a tool to be inserted to screw the screw, and a screw sealing structure is arranged at the mounting hole.

[0014] Furthermore, the screw sealing structure includes a sealing plug arranged in the mounting hole and a blocking cover detachably mounted at the opening of the mounting hole.

[0015] Furthermore, the side outlet housing is provided with limiting stop surfaces on both axial sides of the connecting terminal for limiting the connecting terminal.

[0016] Furthermore, the side-outlet charging socket also includes a screw for fixing the connection terminal of the power wire to the power contact piece, the axis of the screw coincides with the axis of the power contact piece, and the side-outlet housing is also provided with a mounting hole for a tool to be inserted to screw the screw, and a screw sealing structure is arranged at the mounting hole, and the screw sealing structure includes a sealing plug and a baffle cover detachably mounted on the housing; a snap-in protrusion is convexly provided on the circumferential side wall of the side-outlet housing away from the threading hole, a snap-in protrusion is provided on the snap-in protrusion, and a snap-in block for snapping with the snap-in hole is provided on the baffle cover; the circumferential side wall of the housing is divided into a smooth surface area and a raised area, the smooth surface area is located on the side of the circumferential side wall away from the threading hole, the protrusion is arranged in the raised area, the snap-in protrusion is arranged in the smooth surface area, and the central angle corresponding to the smooth surface area is not less than 90°.

[0017] Furthermore, the side outlet housing is divided into a first part and a second part which are connected in a buckle connection, and the first part and the second part together form the accommodating cavity, which is used to accommodate a conductive plug of a power wire, and the conductive plug is used for inserting a power contact to electrically connect with the power contact.

[0018] Furthermore, the outlet sealing structure includes an outlet sealing ring and an outlet end cover. The outlet sealing ring is used to be squeezed between the hole wall of the wire threading hole and the power wire. The outlet end cover is installed at the wire threading hole of the side outlet housing to prevent the outlet sealing ring from escaping from the wire threading hole.

[0019] Furthermore, the feed seal structure includes a feed seal ring sleeved on the power contact, one axial end of the feed seal ring is squeezed between the shell of the socket body and the power contact, and the other axial end is squeezed between the feed hole and the power contact.

[0020] Furthermore, the number of the power contacts is two, and they are a positive power contact and a negative power contact for transmitting direct current respectively.

[0021] The beneficial effects of the side outlet charging socket of the present invention are as follows: the present invention is a pioneering invention. By configuring a side outlet housing for each power wire, the seal between a side outlet housing and a corresponding power wire is prevented from being affected by other power wires; since the electrical connection between the power contact and the power wire is located in the side outlet housing, when the outlet angle of the side outlet housing changes, the distance from the power wire to the electrical connection remains unchanged, so the relative position of the power wire and the threading hole remains unchanged, and there is no need to redesign the outlet sealing structure. At the same time, when the outlet angle of any power wire changes, it is only necessary to rotate the corresponding side outlet housing, and there is no need to redesign the side outlet housing.

[0022] When in use, since the electrical connection between the power contact and the power wire is located in the accommodating cavity, the insertion part of the socket body and the side outlet housing is provided with an entry sealing structure, and the hole wall of the threading hole and the power wire are provided with an outlet sealing structure, the overall sealing of the side outlet charging socket can be ensured. In actual use, according to actual needs, the side outlet housing is inserted into the socket body and the threading hole is oriented in a set direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of a side outlet charging socket after partial explosion in the prior art;

[0024] Figure 2 It is a cross-sectional schematic diagram of a side-outlet charging socket of the present invention;

[0025] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0026] Figure 4 It is a schematic diagram of the structure of the socket body in the side outlet charging socket of the present invention;

[0027] Figure 5 It is a schematic structural diagram of the remaining parts of the side-outlet charging socket of the present invention except the socket body;

[0028] Figure 6 It is a schematic structural diagram of a side outlet housing in a side outlet charging socket of the present invention;

[0029] Figure 7 It is a front view schematic diagram of the side outlet housing in the side outlet charging socket of the present invention;

[0030] Figure 8 It is a cross-sectional schematic diagram of a side outlet housing in a side outlet charging socket of the present invention;

[0031] Fig. 9 It is a rear view schematic diagram of a first wiring outlet mode of a side-outlet charging socket of the present invention;

[0032] Fig.10 This is a schematic diagram of the structure of the first wiring outlet mode of the side-outlet charging socket of the present invention;

[0033] Fig.11 It is a rear view schematic diagram of the second wiring outlet mode of the side wiring outlet charging socket of the present invention;

[0034] Fig.12 This is a schematic diagram of the structure of the second wiring outlet mode of the side-outlet charging socket of the present invention;

[0035] Fig.13 It is a rear view schematic diagram of the third outlet mode of the side outlet charging socket of the present invention;

[0036] Fig.14 This is a schematic structural diagram of a third wiring outlet mode of a side-outlet charging socket of the present invention;

[0037] Fig.15 It is a rear view schematic diagram of the fourth wiring outlet mode of the side wiring outlet charging socket of the present invention;

[0038] Fig.16 This is a schematic structural diagram of a fourth wiring outlet mode of a side-outlet charging socket of the present invention;

[0039] Description of reference numerals:

[0040] Figure 1 Middle: 1. Socket body; 2. Side outlet housing; 3. Outlet terminal; 4. Outlet port;

[0041] Figures 2 to 16 In: 1. Socket body; 2. Side outlet housing; 3. Power contact; 4. Power wire; 5. Inlet sealing ring; 6. Outlet sealing ring; 7. Screw; 8. Sealing plug; 9. Cover; 10. Connecting terminal; 11. Smooth area; 12. Raised area; 13. Raised; 14. Groove; 15. Mounting hole; 16. Threading hole; 17. Inlet hole; 18. Limit stop surface; 19. Outlet end cover; 20. Snap-in bump; 21. Sealing section. DETAILED DESCRIPTION

[0042] In the present invention, a power contact is defined as a contact for transmitting electric current.

[0043] In order to solve the problem in the background technology, the core inventive concept of the present invention is: each power wire is led out through a separate side-outlet housing, so that the outlet sealing structure is not affected by the change in the distance between different power wires.

[0044] The present invention is further described in detail below in conjunction with embodiments.

[0045] The specific embodiment of the side outlet charging socket provided by the present invention is as follows:

[0046] It should be noted that for ease of understanding, Figures 2 to 16 In the figure, the side outlet charging socket is equipped with a wire, but those skilled in the art can understand that when the side outlet charging socket is sold, the side outlet charging socket does not include the wire, and when assembling the vehicle, the staff can assemble the wire on the side outlet charging socket.

[0047] like Figures 2 to 16As shown, as a basic specific implementation of the first category, the side outlet charging socket includes a socket body 1 with a power contact 3 and a side outlet housing 2 for plugging with the socket body 1, each power contact 3 is used to electrically connect a power wire 4, and each power wire 4 (or each power contact 3) is equipped with a side outlet housing 2; each side outlet housing 2 includes a accommodating cavity, an entry hole 17 for a single power contact 3 to extend into, and a threading hole 16 for a single power wire 4 to pass through, and the accommodating cavity is connected to the entry hole 17 and the threading hole 16. The accommodating cavity is used to accommodate the electrical connection between the power contact 3 and the power wire 4 (that is, the electrical connection between the power contact 3 and the power wire 4 is located in the accommodating cavity). At the same time, due to the limitation of the structure of the power contact 3, the electrical connection between the power contact 3 and the power wire 4 is located on the axis of the power contact 3; the hole wall of the threading hole 16 is provided with a wire outlet sealing structure for sealing the threading hole 16 and the power wire 4 (that is, the wire outlet sealing structure is arranged between the hole wall of the threading hole 16 and the power wire 4), and the insertion point of the socket body 1 and the side outlet shell 2 is provided with an entry sealing structure.

[0048] It should be noted that the threading hole 16 means: a hole for the power wire 4 to pass through the accommodating cavity when assembling the vehicle. From the perspective of assembling the vehicle, the threading hole 16 is used for the power wire 4 to pass through; from another perspective, one end of the power wire 4 passes through the threading hole 16, so the angle of the threading hole 16 represents the wire exit angle.

[0049] In the specific implementation of Class 1-1, if Figures 2 to 16 As shown, the side outlet charging socket is a DC charging socket, the number of power contacts 3 is two, and they are respectively a positive power contact and a negative power contact for transmitting DC current. Correspondingly, the number of side outlet housings 2 and power wires 4 is also two, that is, each power contact 3 is electrically connected to a power wire 4, and each power wire 4 is configured with a side outlet housing 2.

[0050] In the specific implementation manner of category 1-2, the side outlet charging socket may also be an AC charging socket. In this case, each power contact 3 is also electrically connected to a power wire 4, and each power wire 4 is configured with a side outlet housing 2.

[0051] It should be noted that the grounding wire is not the power wire 4 and is not charged, so the grounding wire does not need to be sealed, that is, the grounding wire does not need to be configured with a side outlet housing 2. Of course, in other specific embodiments, a side outlet housing 2 can also be configured for the grounding wire or other signal wires, so that when the outlet angle of any wire changes, there is no need to redesign the side outlet housing 2 and the corresponding sealing structure.

[0052] It should be specially noted that, in the side outlet charging socket, since the power wire 4 is thicker and has a larger bending radius, the power wire 4 must be configured with a side outlet housing 2; for the remaining thinner wires, since the bending radius of the thin wires is smaller, when assembling the vehicle, the thin wires can be bent after they are connected to the side outlet charging socket.

[0053] By configuring a side outlet housing 2 for each power conductor 4, the seal between a side outlet housing 2 and a corresponding power conductor 4 is prevented from being affected by other power conductors 4; since the electrical connection between the power contact 3 and the power conductor 4 is located on the axis of the power contact 3, when the outlet angle of the side outlet housing 2 changes, the distance from the power conductor 4 to the electrical connection remains unchanged, so the relative position of the power conductor 4 and the threading hole 16 remains unchanged, and there is no need to redesign the outlet sealing structure. At the same time, when the outlet angle of any power conductor 4 changes, it is only necessary to rotate the corresponding side outlet housing 2, and there is no need to redesign the side outlet housing 2.

[0054] When in use, since the electrical connection between the power contact 3 and the power wire 4 is located in the accommodating cavity, the insertion part of the socket body 1 and the side outlet housing 2 is provided with an entry sealing structure, and an outlet sealing structure is provided between the hole wall of the threading hole 16 and the power wire 4, the overall sealing of the side outlet charging socket can be ensured. In actual use, according to actual needs, the side outlet housing 2 is inserted into the socket body 1, and the threading hole 16 is oriented in a set direction.

[0055] On the basis of the first basic specific implementation method, in order to fix the outlet angle, the present invention makes the following improvements to the socket body 1 and the side outlet housing 2:

[0056] In a preferred second embodiment, one of the socket body 1 and the side outlet housing 2 is provided with a plurality of grooves 14, and the other one is provided with protrusions 13 matching the grooves 14, all the grooves 14 are evenly spaced along the same circumference, the number of protrusions 13 is not greater than the number of grooves 14, and the grooves 14 and the protrusions 13 cooperate with each other along the circumferential stop.

[0057] Specifically, in the 2-1 embodiment, if Figures 2 to 16 As shown, the socket body 1 is provided with a plurality of grooves 14, all of which are evenly spaced along the same circumference, and the number of the grooves 14 may also be three, four or more; the side outlet housing 2 is provided with protrusions 13, and the number of the protrusions 13 may also be one, two or other numbers, but the number of the protrusions 13 is not greater than the number of the grooves 14, and the grooves 14 cooperate with the protrusions 13 along the circumferential stop.

[0058] In the 2-1-1 type of specific implementation, the protrusion 13 is arranged on the circumferential side wall of the side outlet housing 2. For example, Figures 2 to 16 As shown, the side of the side outlet housing 2 close to the socket body 1 is a cylindrical structure, and the protrusion 13 is arranged on the circumferential side wall of the cylindrical structure.

[0059] In the 2-1-2 specific implementation, the protrusion 13 is arranged on the end face of the side outlet housing 2 close to the socket body 1. For example, the side of the side outlet housing 2 close to the socket body 1 is a cylindrical structure, and the protrusion 13 is arranged on the end face of one axial end of the cylindrical structure.

[0060] In the 2-2 type of specific implementation, different from the 2-1 type of specific implementation, the protrusion 13 is arranged on the socket body 1; the groove 14 is arranged on the circumferential side wall of the side outlet shell 2, or the groove 14 is arranged on the end face of the side outlet shell 2 close to the socket body 1.

[0061] In the second embodiment, assuming that the number of grooves 14 is n, n ≥ 3, the minimum adjustment division of the outlet angle is For example, when n=12, the minimum adjustment division of the lead-out angle is 30°.

[0062] In the third type of specific implementation, different from the 2-1 type and 2-2 type specific implementations, the socket body 1 and the side outlet housing 2 are both provided with grooves 14 and protrusions 13, and the grooves 14 on the socket body 1 are matched with the protrusions 13 on the side outlet housing 2, and the protrusions 13 on the socket body 1 are matched with the grooves 14 on the side outlet housing 2. For the socket body 1 and the side outlet housing 2, the grooves 14 and protrusions 13 thereon are arranged alternately, and after the side outlet housing 2 is rotated by a certain angle, the socket body 1 and the side outlet housing 2 can be plugged in again.

[0063] In the third embodiment, the number of grooves 14 on the component (socket body 1 or side outlet housing 2) with the most grooves 14 is n, and n≥3, then the minimum adjustment division of the outlet angle is For example, when n=12, the minimum adjustment division of the lead-out angle is 30°.

[0064] In the second and third specific embodiments, the groove 14 and the protrusion 13 cooperate with each other, so that the socket body 1 can circumferentially limit the side outlet housing 2, and the outlet angle of the side outlet housing 2 can be conveniently fixed at a specific angle. This solution is suitable for working conditions where the outlet angle needs to be fixed. At this time, the side outlet housing 2 is equivalent to fixing one end of the power wire 4 on the socket body 1.

[0065] In the fourth type of specific implementation, the socket body 1 and the side outlet housing 2 are not provided with the groove 14 and the protrusion 13. In this case, the side outlet housing 2 can rotate relative to the socket body 1. This solution is suitable for working conditions where the outlet angle does not need to be fixed. In this case, the power wire 4 can be fixed by means of a wire clamp, etc. Since the power wire 4 is fixed, it is not necessary to fix the side outlet housing 2. Moreover, since the length of the power wire 4 is limited, the outlet angle can only fluctuate within a small range and does not affect normal use.

[0066] In order to facilitate assembly, the relative positions of the power contact 3, the power wire 4 and the side outlet housing 2 are improved as follows in the present invention:

[0067] In a preferred fifth embodiment, the side outlet housing 2 is an "L"-shaped housing, and the side outlet housing 2 includes a transverse portion and a longitudinal portion, the transverse portion is used to accommodate part of the power wire 4, the longitudinal portion is used to accommodate part of the power contact 3, and the junction of the transverse portion and the longitudinal portion is used to accommodate the connection between the power contact 3 and the power wire 4. At this time, the power wire 4 is not bent, which facilitates the assembly of the power wire 4 into the side outlet housing 2, and the volume of the side outlet housing 2 is minimized.

[0068] In the sixth embodiment, the power conductor 4 is located in both the transverse part and the longitudinal part, and the power conductor 4 is bent. Since the power conductor 4 has a certain bending radius and has a tendency to rebound, the volume of the side outlet housing 2 is large, and it is difficult to assemble the power conductor 4 into the side outlet housing 2, but it can also be assembled normally to meet normal use requirements.

[0069] In the 7th type of specific implementation, different from the 5th type of specific implementation, the side outlet shell 2 is a rectangular shell, and has an "L"-shaped accommodating cavity inside the side outlet shell 2. The power contact 3 is located in the longitudinal part of the accommodating cavity, and the power wire 4 is located in the transverse part of the accommodating cavity. At this time, the volume of the side outlet shell 2 is relatively large, but it can also be assembled normally to meet normal use requirements.

[0070] On the basis of the fifth embodiment, in order to facilitate assembly, the present invention improves the connection method between the power contact 3 and the power wire 4 as follows:

[0071] In a preferred embodiment of the eighth category, Figures 2 to 8As shown, the side outlet charging socket also includes a screw 7 for fixing the connection terminal 10 of the power wire 4 to the power contact 3, the axis of the screw 7 coincides with the axis of the power contact 3, and the side outlet housing 2 is also provided with a mounting hole 15 for a tool to insert to screw the screw 7, and a screw sealing structure is arranged at the mounting hole 15. The power contact 3 and the connection terminal 10 can be conveniently electrically connected by the screw 7, and the structure is simple.

[0072] In the specific implementation manner of category 8-1, the screw sealing structure includes a sealing plug 8 and a blocking cover 9 detachably mounted at the mounting hole 15, and has a simple structure.

[0073] In the specific implementation of category 8-1-1, if Figures 5 to 7 As shown in , 9-10 and 15-16, a snap-in protrusion 20 is convexly provided on the circumferential side wall of the side outlet housing 2 away from the threading hole 16, a snap-in hole is provided on the snap-in protrusion 20, and a snap-in block for snapping with the snap-in hole is provided on the stop cover; the circumferential side wall of the side outlet housing 2 is divided into a smooth area 11 and a raised area 12, the smooth area 11 is located on the side of the circumferential side wall away from the threading hole 16, the protrusion 13 is arranged in the raised area 12, the snap-in protrusion 20 is arranged in the smooth area 11, and the central angle corresponding to the smooth area 11 is not less than 90°, and can specifically be 90°, 120°, 180°, 240°, 270° or 330°, etc., so as to avoid interference between the protrusion 13 of one side outlet housing 2 and the snap-in protrusion 20 of other side outlet housings 2, and the stop cover can be conveniently detachably installed on the housing through the snap-in protrusion 20 and the block.

[0074] In reference Figures 4 to 7 On the basis of Figures 9-10 As shown in 15 and 16, since the distance between the two power contacts 3 is relatively close, when the outlet directions of the two side outlet housings 2 are the same, if the protrusions 13 are evenly distributed within the 360° range of the circumferential side wall, the protrusions 13 will interfere with the snap-on protrusions 20, resulting in the two side outlet housings 2 being unable to outlet the wires in the same direction; therefore, it is necessary to set a smooth surface area 11 on the circumferential side wall to avoid interference between the snap-on protrusions 20 and the protrusions 13, so that the two side outlet housings 2 can outlet the wires in the same direction. At the same time, the staggered arrangement of the protrusions 13 and the snap-on protrusions 20 also facilitates the molding of the protrusions 13 on the circumferential side wall.

[0075] It should be noted that when the protrusion 13 is arranged on the circumferential side wall, the outer diameter r of the circumferential side wall is the smallest, and the radial length of the protrusion 13 is assumed to be x at this time; when the groove 14 is arranged on the circumferential side wall, in order to ensure the structural strength, the outer diameter R of the circumferential side wall is ≥ r+x, and at this time, the snap-fit ​​protrusion 20 must interfere with the circumferential side wall.

[0076] In the specific implementation manner of type 8-1-2, an external thread is provided on the stop cover, an internal thread is provided on the mounting hole 15, and the stop cover is threadedly connected to the mounting hole 15. At this time, the protrusions 13 can be evenly distributed within the range of 360° of the circumferential side wall, or the grooves 14 are arranged on the circumferential side wall.

[0077] In the specific implementation manner of category 8-2, the screw sealing structure includes a sealing plug 8 and a sealant, and the sealant bonds the sealing plug 8 to the shell to achieve fixation of the sealing plug 8 and sealing at the mounting hole 15.

[0078] In the 8-3 type specific implementation manner, in the axial direction of the power contact 3, limit stop surfaces 18 for limiting the connecting terminal are provided on both sides of the connecting terminal 10 to limit the position of the connecting terminal 10, so as to facilitate the screw connection of the connecting terminal 10 to the power contact 3. After the connecting terminal 10 and the power contact 3 are connected by screws 7, the connecting terminal 10 can also in turn limit the position of the side outlet housing 2.

[0079] In the 8-4 type of specific implementation, the connecting terminal 10 is suspended in the air. During installation, the connecting terminal 10 needs to be aligned with the power contact 3 through the mounting hole 15 first, and then the connecting terminal 10 and the power contact 3 need to be fixedly connected by the screw 7.

[0080] In the ninth embodiment, the side outlet housing 2 is divided into a first part and a second part which are connected by buckle, and the first part and the second part together enclose the accommodation cavity, the power wire 4 includes a wire body and a conductive plug which is conductively connected to the wire body, the accommodation cavity is used to accommodate the conductive plug of the power wire 4, and the conductive plug is used for the power contact 3 to be inserted to be electrically connected to the power contact 3. At this time, the power contact 3 is equivalent to a pin, and the conductive plug is equivalent to a socket. The power contact 3 is electrically connected to the conductive plug by plugging, so as to realize the electrical connection between the power contact 3 and the power wire 4, which has a simple structure and convenient connection.

[0081] When assembling a vehicle, the wire body and the conductive plug can be electrically connected to form the power wire 4 first, and then the power wire 4 can be installed on the first part. Finally, the second part can be installed on the first part by buckling.

[0082] At this time, a card slot can be provided on one of the socket body 1 and the side outlet charging socket, and a card block can be provided on the other, so that the socket body 1 and the side outlet charging socket are card-connected together to prevent the side outlet charging socket from being separated from the socket body 1. Figure 1In the prior art shown, the socket body and the side-outlet charging socket are connected together through a card slot and a card block. In the present invention, the side-outlet charging socket and the socket body can still be connected together through the card slot and the card block, but the connection position of the side-outlet charging socket and the socket body is changed (that is, the setting position of the card slot and the card block is changed).

[0083] It should be noted that when the power contact 3 and the power wire 4 are connected by screws 7, it is not necessary to set the mounting hole 15. For example, in the 10th specific embodiment, the side outlet shell 2 is composed of two half shells. During installation, the power contact 3 and the power wire 4 can be electrically connected by screws 7, and then the two half shells can be matched together.

[0084] In order to simplify the structure, the improvement of the outlet sealing structure in the present invention is as follows:

[0085] In the 11th specific implementation manner, the wire outlet sealing structure includes a wire outlet sealing ring 6 and a wire outlet end cover 19. The wire outlet sealing ring 6 is squeezed between the hole wall of the wire threading hole 16 and the power wire 4. The wire outlet end cover 19 is installed at the wire threading hole 16 of the side wire outlet housing 2 to prevent the wire outlet sealing ring 6 from escaping from the wire threading hole 16. The structure is simple.

[0086] In the twelfth specific implementation manner, since the relative positions of the threading hole 16 and the power wire 4 remain unchanged, the threading hole 16 and the power wire 4 can be directly bonded together with a sealant. At this time, the sealant constitutes a wire outlet sealing structure.

[0087] In order to simplify the structure, the improvements to the inlet sealing structure in the present invention are as follows:

[0088] In the 13th specific implementation manner, the feed sealing structure includes an feed sealing ring 5 sleeved on the power contact 3, one axial end of the feed sealing ring 5 is squeezed between the shell of the socket body 1 and the power contact 3, and the other axial end is squeezed between the feed hole 17 and the power contact 3, and the structure is simple.

[0089] In the 14th embodiment, Figures 2 to 8 As shown, the part of the side outlet housing 2 used for plugging with the socket body 1 also includes a cylindrical sealing section 21, which is located on the side of the protrusion 13 (or the groove 14) close to the socket body 1, and the part of the socket body 1 used for plugging with the side outlet housing 2 includes a sealing hole corresponding to the sealing section 21, and a sealing ring is installed in the sealing hole, and the sealing ring is squeezed between the sealing hole and the sealing section 21 to achieve the sealing of the plug-in part of the socket body 1 and the side outlet housing 2. At this time, the sealing ring constitutes an inlet sealing structure.

[0090] It should be noted that the present invention only classifies the specific embodiments according to specific features, which does not mean that other categories do not contain this specific feature. For example, the structure of the first category of specific embodiments may be the same as that of the second or third category of specific embodiments.

[0091] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions recorded in the aforementioned embodiments without creative work, or to replace some of the technical features therein with equivalents, or to organically combine different types of specific implementations, thereby combining the attached Figures 2 to 16 The specific implementation methods given in the specification are, of course, those skilled in the art can also combine the specific implementation methods not given in the other drawings of the specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A side outlet charging socket, characterized in that: The invention comprises a socket body (1) having a power contact piece (3) and a side outlet housing (2) for plugging with the socket body (1), each power contact piece (3) being used to electrically connect a power wire (4), and each power contact piece (3) being provided with a side outlet housing (2); each side outlet housing (2) comprising a receiving cavity, an entry hole (17) for a single power contact piece (3) to extend into, and a threading hole (16) for a single power wire (4) to pass into, the receiving cavity being connected to the entry hole (17) and the threading hole (16), the receiving cavity being used to receive the electrical connection between the power contact piece (3) and the power wire (4); a threading hole (16) having an outlet sealing structure for sealing the threading hole (16) and the power wire (4), and a receiving cavity sealing structure being provided at the plugging point between the socket body (1) and the side outlet housing (2).

2. The side outlet charging socket according to claim 1, characterized in that: One of the socket body (1) and the side outlet housing (2) is provided with a plurality of grooves (14), and the other is provided with protrusions (13) matching the grooves (14), all the grooves (14) are evenly spaced along the same circumference, the number of the protrusions (13) is not greater than the number of the grooves (14), and the grooves (14) and the protrusions (13) are matched along the circumferential stop.

3. The side outlet charging socket according to claim 1 or 2, characterized in that: The side outlet housing (2) is an "L"-shaped housing, comprising a transverse portion and a longitudinal portion, the transverse portion being used to accommodate a portion of the power wire (4), the longitudinal portion being used to accommodate a portion of the power contact piece (3), and the junction between the transverse portion and the longitudinal portion being used to accommodate the connection between the power contact piece (3) and the power wire (4).

4. The side outlet charging socket according to claim 3, characterized in that: The side outlet charging socket further comprises a screw (7) for fixing a connection terminal (10) of a power wire (4) to a power contact piece (3), wherein the axis of the screw (7) coincides with the axis of the power contact piece (3), and the side outlet housing (2) is further provided with a mounting hole (15) for inserting a tool to screw the screw (7), and a screw sealing structure is arranged at the mounting hole (15).

5. The side outlet charging socket according to claim 4, characterized in that: The screw sealing structure comprises a sealing plug (8) arranged in the mounting hole (15) and a blocking cover (9) detachably mounted at the opening of the mounting hole (15).

6. The side outlet charging socket according to claim 4, characterized in that: The side outlet housing (2) is provided with limiting stop surfaces (18) for limiting the connecting terminal (10) on both axial sides of the connecting terminal (10).

7. The side outlet charging socket according to claim 2, characterized in that: The side outlet charging socket further comprises a screw (7) for fixing a connection terminal (10) of a power wire (4) to a power contact piece (3), wherein the axis of the screw (7) coincides with the axis of the power contact piece (3); a mounting hole (15) for inserting a tool to screw the screw (7) is also provided on the side outlet housing (2); a screw sealing structure is arranged at the mounting hole (15), wherein the screw sealing structure comprises a sealing plug (8) and a blocking cover (9) detachably mounted on the housing; the side outlet housing (2) is away from the wear part. A snap-fitting protrusion (20) is convexly provided on the circumferential side wall on one side of the thread hole (16), a snap-fitting hole is provided on the snap-fitting protrusion (20), and a snap-fitting block for snap-fitting with the snap-fitting hole is provided on the blocking cover (9); the circumferential side wall of the housing is divided into a smooth surface area (11) and a raised area (12), the smooth surface area (11) is located on the side of the circumferential side wall away from the thread hole (16), the raised area (13) is arranged in the raised area (12), the snap-fitting protrusion (20) is arranged in the smooth surface area (11), and the central angle corresponding to the smooth surface area (11) is not less than 90°.

8. The side outlet charging socket according to claim 1, 2 or 7, characterized in that: The side outlet housing (2) is divided into a first part and a second part which are connected in a buckle connection, and the first part and the second part together form the accommodating cavity, the accommodating cavity is used to accommodate the conductive plug of the power wire (4), and the conductive plug is used for the power contact piece (3) to be inserted so as to be electrically connected to the power contact piece (3).

9. The side outlet charging socket according to claim 1, 2 or 7, characterized in that: The outlet sealing structure comprises an outlet sealing ring (6) and an outlet end cover (19), wherein the outlet sealing ring (6) is used to be squeezed between the hole wall of the wire threading hole (16) and the power wire (4), and the outlet end cover (19) is installed at the wire threading hole (16) of the side outlet housing (2) to prevent the outlet sealing ring (6) from falling out of the wire threading hole (16).

10. The side outlet charging socket according to claim 1, 2 or 7, characterized in that: The feed seal structure comprises a feed seal ring (5) sleeved on the power contact piece (3); one axial end of the feed seal ring (5) is squeezed between the shell of the socket body (1) and the power contact piece (3); and the other axial end is squeezed between the feed hole (17) and the power contact piece (3).

11. The side outlet charging socket according to claim 1, 2 or 7, characterized in that: The number of power contacts (3) is two, and they are a positive power contact and a negative power contact for transmitting direct current respectively.

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