CN103794922B - The junctor of electric car charger - Google Patents

Abstract

Disclosed herein is a connector for an electric vehicle charger, more particularly, a connector for an electric vehicle charger that can be easily assembled and disassembled, easy to maintain, simple in structure, and has a small number of parts.

Description

Connectors for electric vehicle chargers

technical field

The present invention relates to a connector for an electric vehicle charger, more particularly, a connector for an electric vehicle charger that can be easily assembled and disassembled, easy to maintain, simple in structure and less in number of parts.

Background technique

Recently, there has been increasing interest in electric vehicles due to recent rising oil prices or environmental concerns. The electric vehicle includes a drive motor and a higher capacity battery for the power required to run the various electric components. In order to distribute electric vehicles, an electric vehicle charger for charging the electric vehicles is necessary.

Such an electric vehicle charger may include: a charging station for power supply and control; and a connector detachably mounted to an inlet of the electric vehicle to supply power provided by the charging station to the inlet provided in the electric vehicle.

An existing connector for an electric vehicle according to the prior art includes: a plurality of terminals connected to a plurality of cables; a rear seat configured to prevent the terminals from moving backward; a waterproof material placed in front of the rear seat to Waterproofs the terminals; Terminal Position Assurance Lock (TPA), placed on the back seat and in front of the waterproofing material to secure the terminals in place.

In an existing connector for an electric vehicle according to the related art, a plurality of cables may be inserted into a rear seat, a waterproof material, and a terminal positioning securing lock. After that, strip the cable end and press it on the terminal end, and the assembly process is complete. If a mistake is made in one of these cables, all cables must be cut from the terminal end, and the cable is inconveniently removed from the existing backseat, waterproof material, and terminal positioning security lock in the connector assembled in the above order separate. In addition, if errors occur in some components constituting the connector other than cables, it is not easy to replace some erroneous components in the connector for electric vehicles according to the prior art.

Also, in the existing connector, the terminal positioning guarantee lock for securing the position of the terminal is independent of the rear seat, which inevitably increases the number of parts. Therefore, production cost will become high, and assembly work will increase.

Contents of the invention

An object of the present invention is to provide a connector for an electric vehicle charger capable of reducing the number of components and having a simple structure. Another object of the present invention is to provide a connector for an electric vehicle charger that can be easily assembled and disassembled.

Another object of the present invention is to provide a connector for an electric vehicle charger that is easy to install and remove.

Still another object of the present invention is to provide a connector for an electric vehicle charger capable of completely ensuring accommodating positions or mounting positions of terminals provided in the connector.

Another object of the present invention is to provide a connector for an electric vehicle charger capable of waterproofing its internal space.

The additional advantages, purposes and features of the present disclosure will be partially set forth in the ensuing description, and for those skilled in the art, after studying the following contents, some of the contents will become clear, or can be obtained through the present invention The implementation can be realized. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. In order to achieve these objects and other advantages, and according to the intent of the present invention, as described in the specific and general description herein, a connector for an electric vehicle charger includes: a housing; a terminal housing installed in the housing; a rear seat, detachably mounted in the terminal housing; and a plurality of terminals inserted into the terminal housing via the rear seat, the terminals having hooking protrusions respectively formed on outer peripheral surfaces thereof.

The hooking protrusion of each terminal can be arranged between the terminal housing and the rear seat, the first terminal fixing part can be arranged in the terminal housing to prevent the hooking protrusion of each terminal from moving forward, and the second terminal A fixing part may be provided in the rear seat to prevent the catch protrusion of each terminal from moving backward.

The first terminal fixing part may include a plurality of rear guide elements extending backward from the terminal housing, and the second terminal fixing part may include a plurality of clamping elements extending forward from the rear seat to act as the terminal housing and The rear seats face a plurality of rear guide elements when coupled to each other.

The clamping member may include an elastically deformable part including: an inclined surface configured to guide sliding movement of the hooking protrusion when the terminal passes through the clamping member; Hook the rear surface of the protrusion.

The rear guide member may extend from the terminal housing to be spaced apart from the clamping member by a predetermined distance as far as the thickness of the hooking protrusion when the terminal housing and the rear seat are coupled to each other.

The outer diameter of the rear guide element may be the same as the height of the hooking protrusion.

The rear seat may include a plurality of positioning securing elements disposed between the clamping elements to insert the rear guiding element therein, and an inner diameter of the positioning securing elements is the same as a height of the hooking protrusion.

The rear seat may include a plurality of rear housing elements that extend rearwardly from the rear seat and communicate with the clamping element, and a sealing element is disposed in the rear housing element, the sealing element having a function to allow the cable to pass therethrough. through holes.

The sealing member may include; an elastic member disposed forwardly in the rear receiving member; and a rigid member coupled to a rear surface of the elastic member.

The elastic part may have a bellows shape, and an outer diameter of the elastic part may be larger than an inner diameter of the rear receiving member.

The elastic part may be formed from rubber, while the rigid part is formed from plastic.

The sealing element may include a plurality of rigid seams of rigid material to pass through the elastic and rigid members.

The terminal housing and the back seat can be detachably installed in the housing.

The annular rib may protrude inwardly in the housing to hermetically close a predetermined area of the rear receiving member provided in the rear seat.

The inner diameter of the annular rib may be smaller than the diameter of a common circumscribed circle surrounding the plurality of rear housing elements.

At least one ring-type hooking protrusion may be provided on an outer peripheral surface of the terminal housing, and at least one ring-type protrusion may protrude inwardly from the housing to support the ring-type hooking protrusion of the terminal housing.

The plurality of terminals may include at least one communication terminal and at least one electrical terminal.

In another solution of the present invention, a connector for an electric vehicle charger includes: a housing; a terminal housing installed in the housing; a rear seat detachably installed in the terminal housing; and a plurality of terminals, including a hooking protrusion formed on an outer peripheral surface thereof, to which the cable is connected; and a sealing member coupled to the rear seat to allow the cable to pass therethrough.

When the terminal is inserted into the terminal housing via the rear seat, the hooking protrusion of each terminal may be disposed between the terminal housing and the rear seat. A rear guide member may be provided in the terminal housing to contact the front surface of the hooking protrusion of each terminal, and a plurality of clamping members may be provided in the rear seat to contact the rear surface of the hooking protrusion of each terminal. touch.

The rear guiding element prevents the terminal from moving forward and the clamping element prevents the terminal from moving backward.

The clamping member may include an elastically deformable member including: an inclined surface configured to guide sliding of the hooking protrusion when the terminal passes through the clamping member; and a hooking surface for supporting the hooking protrusion the rear surface.

The rear guide member may extend from the terminal housing to be spaced apart from the clamping member by a predetermined distance as far as the thickness of the hooking protrusion when the terminal housing and the rear seat are coupled to each other.

The connector for an electric vehicle according to the present invention can have the following effects. According to the present invention, the structure of the connector can be simplified, and the number of parts constituting the connector can be reduced according to the present invention. Therefore, the present invention can increase the productivity of the connector and at the same time reduce the production cost.

Also, the connector according to the present invention can be easily assembled and disassembled. The components provided in the connector according to the present invention can be easily assembled and disassembled. Specifically, the terminal can be detachably inserted into the rear seat and the terminal housing after being pressed and connected to the cable. Therefore, the pressing and connecting process between the cable and the terminal can be easily performed, and the assembly or disassembly process of the terminal housing and the back seat can be easily performed. Assembly and disassembly processes between the components of the terminal housing and the back seat and the terminals can be easily performed. Therefore, when each part is damaged (for example, a pressure state error is generated between the connection part of the terminal and the cable), or parts need to be replaced, assembly and disassembly between parts can be easily performed, and effective Perform connector maintenance.

Still further, it is possible to completely secure the accommodating position or the coupling position of the terminal within the connector. Specifically, the ring-shaped hooking protrusion is fixed between the terminal housing and the rear seat, with the result that the accommodating position or the coupling position of the terminal is ensured.

Still further, the coupling position of the terminal housing and the rear seat installed in the connector according to the present invention is ensured. In particular, forward and backward movement of the terminal housing and the rear seat can be prevented within the housing.

Still further, the sealing element is arranged at the front or the rear of the rear seat. Therefore, separation of the sealing member can be prevented, and the inside of the connector can be made waterproof.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Description of drawings

The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

In the picture:

1 is an exploded perspective view schematically showing a connector of an electric vehicle according to the present invention;

2 is a perspective view schematically showing the inside of a connector of an electric vehicle charger;

3 is a side view showing the inside of a connector of an electric vehicle charger;

4 is a rear perspective view schematically showing a terminal according to the present invention;

Figure 5 is an internal perspective view of a housing according to the present invention;

6 is a rear perspective view of a terminal housing according to the present invention;

7 is a plan view of a terminal housing according to the present invention;

8 is a side view of a terminal housing according to the present invention;

Figure 9 is a side view of a rear holder according to the present invention;

Figure 10 is a rear perspective view of a rear seat according to the present invention;

Figure 11 is a rear view of the rear seat according to the present invention;

Figure 12 is a front perspective view of a rear seat according to the present invention;

Figure 13 is a front view of a rear seat according to the present invention;

Fig. 14 is a longitudinal sectional view of the rear seat taken along A-A of Fig. 13;

Fig. 15 is a longitudinal sectional view of the rear seat taken along B-B of Fig. 13;

16 is a front perspective view of a sealing material according to the present invention;

Figure 17 is a side view of a sealing material according to the present invention;

18 is a front view of a sealing material according to the present invention; and

19-22 are views showing an assembly process of the connector of the electric vehicle according to the present invention.

detailed description

In one aspect of the present invention, a connector for an electric vehicle charger according to an embodiment of the present invention may include: a housing; a terminal housing mounted in the housing; a rear seat detachably mounted to the terminal housing; and A plurality of terminals are inserted into the terminal housing via the rear seat, the terminals having hooking protrusions respectively formed on their outer peripheral surfaces.

In this case, a hooking protrusion formed in each of these terminals is provided between the terminal housing and the rear seat. The first terminal fixing part is provided in the terminal housing to prevent the hooking protrusion of each terminal from moving forward, and the second terminal fixing part is provided in the rear seat to prevent the hooking protrusion from moving backward.

In addition, the first terminal fixing part may include a plurality of rear guide members extending rearward from the terminal housing. The second terminal fixing part may include a plurality of clamping members extending forward from the rear seat to face the rear guide member when the terminal housing is coupled to the rear seat.

In another solution of the present invention, a connector for an electric vehicle charger according to an embodiment of the present invention includes: a housing; a terminal housing installed in the housing; a rear seat detachably coupled to the terminal housing; A plurality of terminals, connected to the cables, have hooking protrusions respectively formed on outer peripheral surfaces thereof; and a sealing member coupled to the rear seat to pass the cables therethrough.

When the terminals are inserted into the terminal housing via the back seat, hooking protrusions respectively formed in the terminals may be provided between the terminal housing and the back seat.

A rear guide member is provided in the terminal housing to contact the front surface of each hooking protrusion formed in each terminal, and a plurality of clamping members is provided in the rear seat to face a rear face of the hooking protrusion. ).

Additionally, the rear guide element can prevent the terminal from moving forward, and the clamping element can prevent the terminal from rearmoving.

One catch protrusion or a plurality of catch protrusions may be provided. The hooking protrusion may have a ring shape. When it has such a ring shape, the hooking protrusion may be called a ring type hooking protrusion. The hooking protrusion may extend a predetermined height from the outer peripheral surface of the terminal. If the hooking protrusion is ring-shaped, the height of the protrusion may be the outer diameter of the ring-shaped hooking protrusion.

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The present invention may not be limited to the embodiments described below, and may be specified in other types. The embodiments described herein are provided to fully convey the gist of the invention to those skilled in the art to which the invention pertains. Reference will now be made in detail to specific embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

FIG. 1 is an exploded perspective view schematically showing a connector 1000 for an electric vehicle according to the present invention. FIG. 2 is a perspective view schematically showing the inside of the connector 1000 of the electric vehicle charger. FIG. 3 is a side view showing the inside of the connector 1000 of the electric vehicle charger. FIG. 4 is a rear perspective view schematically showing a terminal 200 according to the present invention. FIG. 5 is an internal perspective view of the housing 100 according to the present invention. The direction towards the inlet of the electric vehicle may be forward or towards the front surface. The opposite direction relative to the access opening of the electric vehicle may be backwards or towards the rear surface.

As shown in Fig. 1 to Fig. 3, the connector 1000 of the electric vehicle charger according to the present invention includes: a plurality of terminals 200, which are connected with communication cables and/or electric cables (electriccable) to be electrically linked to the terminals provided on the electric vehicle. the terminal housing 300 configured to accommodate the terminal 200; the rear seat 400 configured to support and fix the terminal 200 accommodated by the terminal housing 300; and the housing 100 configured to The terminal housing 300 and the rear seat 400 are detachably accommodated.

As shown in FIGS. 2 and 3 , the terminal housing 300 and the rear seat 400 may be detachably assembled to each other. An assembly composed of the terminal housing 300 and the rear seat 400 is fixedly accommodated in the inner front portion of the housing 100 . Preferably, the assembly of the terminal housing 300 and the rear seat 400 can be insertably adapted to the shape of the housing 100 .

A plurality of sealing members 500 may be received at the rear end of the rear seat 400 to make the interior of the assembly of the terminal housing 300 and the rear seat 400 waterproof. A plurality of sealing members 500 may be forcibly fitted to the rear end of the rear seat 400 .

As shown in FIG. 4 , the terminal 200 may be a male terminal 200 electrically connected to a female terminal (not shown) provided in an inlet of the electric vehicle. At least one of the terminals 200 may be a communication terminal 200 , and at least one of the terminals 200 may be an electrical terminal 200 . Five terminals 200 are provided in this specification. This is one of the examples, and the present invention is not limited thereto.

The number of rear and front housing members 440 and 430 provided in the rear seat 400 and the number of rear and front guide members 323 and 311 provided in the terminal housing 300 (which will be described later) It may correspond to the number of terminals 200 .

Each terminal 200 is received and fixed in each rear receiving member 440 and each front receiving member 430 of the rear seat 400 and each rear guide member 323 and each front guide member 311 of the terminal housing 300 .

Specifically, the terminal 200 can be detachably inserted into the assembly of the terminal housing 300 and the rear seat 400 via the rear receiving member 440 of the rear seat 400 to be detachably fixed in the rear seat 400 of the terminal housing 300 respectively. For this, the assembly of the terminal housing 300 and the rear seat 400 may include a plurality of terminal fixing parts. Each terminal fixing part may include a plurality of clamping elements 433 (to be described hereinafter) formed by the front receiving element 430 of the rear seat and a plurality of rear guide elements 323 of the terminal housing (to be described hereinafter). describe it). More specifically, the terminal fixing part includes: a plurality of clamping elements 433 extending forward from the rear seat; Facing the clamping element 433 . The clamping member 433 and the rear guide member 323 provided in the terminal fixing part will be described in detail later.

As shown in FIG. 4 , each terminal 200 may include: a connecting part 210 electrically connected to a plurality of female terminals provided in the inlet of the electric vehicle; surface forming; and a connecting part 230 extending backward from the ring-shaped hooking protrusion 220 to press and connect the cables therein.

The connection part 210 is cylindrical, and when the terminal 200 is assembled into the assembly of the terminal housing 300 and the rear seat 400, the connection part 210 is assembled into the rear guide element 323 and the front guide element 311 of the terminal housing 300 (the It will be described later). At this time, the outer diameter (d1) of the connection part 210 is the same as the inner diameter of the rear guide member 323 (which will be described later) and the inner diameter of the front guide member 311 provided in the terminal housing 300 . Therefore, it is possible to secure the coupling position and the accommodation position of the terminal 200 and the connection part 210 of the terminal 200 in the terminal housing 300 .

A ring-type hooking protrusion 220 may be formed at an end of the connection part 210 , and an outer diameter ( d2 ) of the ring-type hooking protrusion 220 is greater than that of the connection part 210 . The ring-shaped hooking protrusion 220 may be fixed into an assembly of the terminal housing 300 and the rear seat 400 through a terminal fixing part. In other words, the ring-type hooking protrusion 220 may be fixedly disposed between the terminal housing 300 and the rear seat 400 in an assembly of the terminal housing 300 and the rear seat 400 . Specifically, the front surface of the ring-shaped hooking protrusion 220 is supported by the free end of the rear guide member 323 provided in the terminal housing 300 . The rear surface of the ring-shaped hooking protrusion 220 is supported by a free end of a clamping member 433 provided in the front receiving member 430 of the rear seat (which will be described later). At this time, it is preferable that the rear guide member and the clamping member are respectively formed in the terminal housing and the rear seat so that when the terminal housing and the rear seat are coupled to each other, their free ends are spaced apart from the ring-shaped hooks. The predetermined distance is as large as the thickness of the protrusion.

The connection part 230 is a portion to which the stripped cable end is electrically connected after being pressed. Before pressing the cable end to the connection part 230, a sealing member 500 (which will be described later) is provided in the periphery of the connection part 230 or the periphery of the cable end. According to the present invention, the stripped cable end is pressed and connected to the connection part of the terminal, after which each terminal is inserted into the assembly of the terminal housing and the back seat, resulting in an easy press connection process between the terminal and the cable implement.

As shown in FIGS. 2 , 3 and 5 , the housing 100 may include left and right parts. The left and right parts can be assembled detachably. However, this is one of examples, and the present invention is not limited thereto. The housing may consist of parts capable of being assembled.

The housing 100 may include: a first accommodating space 110 detachably accommodating an assembly of the terminal housing 300 and the rear seat 400, having a front opening and a rear opening; and a second accommodating space 120 formed behind the rear opening to accommodate connection Cable to terminal 200.

The first accommodating space 110 of the housing 100 is defined by a first annular protrusion 130 and an annular rib 150, the first annular protrusion 130 protrudes toward the inside of the housing 100 to limit the front opening, and the annular rib 150 protrudes toward the housing 100. The inner portion of 100 protrudes to limit the rear opening, and the annular rib 150 is spaced apart from the first annular protrusion 130 by a predetermined distance. The predetermined distance may be from the first ring-shaped hooking protrusion 330 (which will be described later) of the terminal housing 300 to the free end of the rear receiving element 440 of the rear seat 400 (which will be described later). )distance.

A second ring-shaped protrusion 140 protruding toward the inside of the housing 100 is formed at a predetermined distance from the first ring-shaped protrusion 130 within the first accommodation space 110 .

Preferably, the inner diameter (d3) of the first annular protrusion 130 is the same as the outer diameter (d8) of the front cylindrical part 310 provided in the terminal housing 300 (which will be described later), and the second The inner diameter (d4) of the bicyclic protrusion 140 is the same as the outer diameter (d9) of the rear cylindrical part 320 of the terminal housing 300 (which will be described later). The first ring-shaped protrusion 130 and the second ring-shaped protrusion 140 can prevent the terminal housing 300 from moving back and forth in the first receiving space 110 to ensure a receiving position or a coupling position of the terminal housing 300 in the housing 100 .

The annular rib 150 may protrude toward the inside of the housing 100 to limit a rear opening through which cables connected to the terminal 200 pass. At this time, when the assembly of the terminal housing and the rear seat is installed into the housing, the annular rib 150 may protrude inward to tightly close a predetermined area of the rear receiving member of the rear seat. Specifically, the inner diameter (d5) of the rear opening 151 (or the inner diameter (d5) of the annular rib 150) may be smaller than the diameter (d10) of a common circumscribed circle surrounding the rear receiving element 440 disposed in the rear seat 400. (It will be described later). However, in order for cables to pass therethrough, the inner diameter (d5) of the rear opening 151 (or the inner diameter (d5) of the annular rib 150) must be larger than the through hole surrounding the sealing member 500 accommodated by the plurality of rear receiving members 440 ( 501) (for cables) the diameter of the common circumscribed circle (which will be described later).

The annular rib 150 has the inner diameter as described above to completely prevent the rear seat 400 from moving backward in the first accommodation space 110 of the housing 100 and at the same time prevent the sealing member 500 accommodated by the rear accommodation member 440 of the rear seat 400 from moving backward. move. Accordingly, the accommodation position or the coupling position of the rear seat 400 can be secured within the housing 100, and the interior of the assembly of the terminal housing 300 and the rear seat 400 can be completely waterproofed.

In this way, the inner structure of the housing 100 is set as above, and when the assembly is assembled to the housing 100 , the assembly position of the assembly of the terminal housing 300 and the rear seat 400 can be easily ensured. Therefore, the assembly speed of the connector can be improved, or the coupling position or accommodation position of the terminal housing 300 and the rear seat 400 can be ensured in the housing 100 at the same time to ensure the coupling position or accommodation position of the terminal in the housing 100 .

FIG. 6 is a rear perspective view of a terminal housing 300 according to the present invention. FIG. 7 is a plan view of a terminal housing 300 according to the present invention. FIG. 8 is a side view of a terminal housing 300 according to the present invention.

As shown in FIGS. 6 to 8 , the terminal housing 300 includes: a front cylindrical part 310 , laid flat forward, mechanically coupled to the inlet of the electric vehicle; and a rear cylindrical part 320 , laid flat backward, and The seat 400 is detachably coupled thereto.

The outer diameter (d8) of the front cylindrical part 310 is the same as the inner diameter (d3) of the first annular protrusion 130 provided in the housing 100 or the diameter of the front opening 131 provided in the housing 100 . The front cylindrical member 310 may include a plurality of front guide elements 311 disposed forwardly therein. The front guide member 311 is cylindrical, and the inner diameter of the front guide member 311 is the same as the outer diameter ( d1 ) of the connection part 210 provided in the terminal 200 . In other words, the front guide member 311 may receive the terminal 200 (or the connection part 210 of the terminal 200 ) to ensure the coupling position or the receiving position of the terminal 200 .

The outer diameter (d9) of the rear cylindrical part 320 is the same as the inner diameter (d4) of the second annular protrusion 140 provided in the housing 100 . Also, the outer diameter (d9) of the rear cylindrical part 320 is the same as the inner diameter (d13) of the rear cover 410 provided in the rear seat 400 (which will be described later). In other words, when the terminal housing 300 is disposed in the housing 100 , the fixed end of the rear cylindrical part 320 is surrounded by the second annular protrusion 140 of the housing 100 . When the terminal housing 300 and the rear housing 400 are assembled, the free end of the rear cylindrical part 320 is inserted into the rear cover 410 of the rear housing 400 (which will be described later).

The rear cylindrical member 320 may include a plurality of rear guide elements 323 lying rearwardly therein. When the terminal housing 300 and the rear seat 400 are coupled to each other, the rear guide member 323 supports the front surface of the ring-shaped hooking protrusion 220 provided in the terminal 200 to prevent the terminal 200 from being assembled in the terminal housing 300 and the rear seat 400. Move forward inside.

Specifically, the rear guide member 323 supports the front and rear surfaces of the ring-shaped hooking protrusion 220 (which will be described later) of the terminal 200 together with the clamping member 433 of the rear seat 400 to prevent the terminal 200 from The casing 300 and the rear seat 400 move within the assembly. Therefore, it is possible to secure the accommodation position or the coupling position of the terminal 200 within the housing or within the assembly of the terminal housing 300 and the rear seat 400 .

The outer diameter (d7) of the rear guide member 323 is the same as the inner diameter (d12) of the positioning guarantee lock 431 provided in the rear seat 400 (which will be described later). The inner diameter ( d6 ) of the rear guide member 323 is the same as the outer diameter ( d1 ) of the connection part 210 provided in the terminal 200 . In other words, when the terminal housing 300 and the rear seat 400 are coupled to each other, the rear guide member 323 accommodates the connection part 210 of the terminal 200, and the rear guide member 323 is inserted into the positioning guarantee lock 431 of the rear seat 400 (will be described later in It will be described later).

When the terminal housing 300 and the rear seat 400 are coupled to each other, the height of the rear guide member 323 is the distance between the free end of the clamping member 433 of the rear seat 400 and the free end of the rear guide member 323 (there is a ring spaced between them. The thickness (t) of the type hooking protrusion 220). In other words, in the assembly of the terminal housing 300 and the rear seat 400 (wherein the terminal 200 is not inserted), the distance between the free end of the rear guide member 323 and the free end of the clamping member 433 of the rear seat 400 may be equal to that of the terminal 200 is the same thickness. Therefore, when the terminal 200 is inserted after the terminal housing 300 and the rear seat 400 are coupled to each other, the ring-shaped hooking protrusion 220 of the terminal 200 can be clamped by the free end of the rear guide member 323 of the terminal housing 300 and the rear seat 400 . The free end of the holding element 433 is firmly supported (which will be described later).

As shown in FIGS. 7 and 8 , two coupling protrusions 321 are provided in the outer peripheral surface of the rear cylindrical part 320 . Each coupling protrusion 321 includes: an inclined surface 321a inclined backward to slide a leg 411 of the rear seat therealong; and a hooking surface 321b when the terminal housing 300 and the rear seat 400 are coupled to each other , to be engaged with the coupling recess 413 formed in the pin 411 of the rear seat 400 .

The coupling protrusion 321 of the terminal housing 300 and the pin 411 of the back seat 400 may enable the back seat 400 to slide relative to the terminal housing 300 to easily assemble the back seat 400 to the terminal housing 300 . Also, the pin 411 has an elastic structure (which will be described later), and the pin 411 is broadened to easily detach itself from the coupling protrusion 321 . Therefore, the rear seat 400 can be efficiently detached from the terminal housing 300 .

According to the present invention, two coupling protrusions 321 are provided, and this is one of the examples. The present invention is not limited to two coupling protrusions 321 .

As shown in FIGS. 6 to 8, the terminal housing 300 includes: a first ring-shaped hooking protrusion 330 protruding outward from the outer peripheral surface of the fixed end of the front cylindrical member 310; and a second ring-shaped hooking protrusion 340 outwardly The protrusion is spaced a predetermined distance from the first ring-shaped hooking protrusion 330 .

The first ring-shaped hooking protrusion 330 is supported by the first ring-shaped protrusion 130 provided in the housing 100 , and the second ring-shaped hooking protrusion 340 is supported by the second ring-shaped protrusion 140 provided in the housing 100 . Specifically, the rear surface of the second ring-shaped hooking protrusion 340 is supported by the second ring-shaped protrusion 140 to prevent the second ring-shaped hooking protrusion 340 from moving backward. In other words, the first ring-type hooking protrusion 330 and the second ring-type hooking protrusion 340 of the terminal housing 300 may be inserted into the first ring-type protrusion 130 and the second ring-type protrusion 130 provided in the housing 100 . Between the type protrusions 140.

Preferably, the outer diameter (d8) of the front cylindrical part 310 is the same as the inner diameter (d3) of the first annular protrusion 130, and the outer diameter (d9) of the rear cylindrical part 320 is the same as that of the second The inner diameters (d4) of the annular protrusions 140 are the same.

The rear cylindrical part 320 is laid flat rearward from the second ring-shaped hooking protrusion 340 .

FIG. 9 is a side view of a rear seat 400 according to the present invention. FIG. 10 is a rear perspective view of a rear seat 400 according to the present invention. FIG. 11 is a rear view of a rear seat 400 according to the present invention. FIG. 12 is a front perspective view of a rear seat 400 according to the present invention. FIG. 13 is a front view of a rear seat 400 according to the present invention. FIG. 14 is a longitudinal sectional view of the rear seat 400 taken along A-A of FIG. 13 . FIG. 15 is a longitudinal sectional view of the rear seat 400 taken along B-B of FIG. 13 .

As shown in FIGS. 9 to 15 , the rear seat 400 is detachably coupled to the terminal housing 300 via the coupling protrusion 321 of the terminal housing 300 to determine the coupling position or position of the terminal 200 in the terminal housing 300 . The receiving position, and at the same time, the coupling position or the receiving position of the terminal 200 is ensured in the terminal housing 300 . In addition, when the terminal housing 300 and the rear seat 400 are coupled to each other, the rear seat 400 may prevent the terminal 200 from moving backward.

9 to 15, the rear seat 400 includes: a rear cover 410 configured to cover the rear end of the terminal housing 300 and limit the outermost periphery of the rear seat; a plurality of rear housing elements 440 from the rear cover 410 The rear surface extends rearward, and the rear accommodating element 440 has a cylindrical shape; and a plurality of front accommodating elements 430 extend forward from the front surface of the rear cover 410 to meet the rear accommodating element 440 to determine the coupling of the terminal 200 Location. The front receiving member 430 and the rear receiving member 440 meet each other to form a through hole. The terminal 200 may pass through the rear seat 400 through the through hole.

The rear cover 410 includes: a base 414 configured to divide other areas except the area corresponding to the through hole into a rear housing element 440 and a front housing element 430; a peripheral part 412 formed in a cylindrical shape to serve as a terminal When housing 300 and rear seat 400 are coupled to each other, surround a predetermined area of the rear cylindrical part 320 of the terminal housing, the peripheral part 412 is laid flat along the vertical direction of the base 414; The rearward vertical direction of the pedestal extends from the edge of the base 414 , extending rearwardly higher than the perimeter member 412 .

At this time, the inner diameter ( d13 ) of the rear cover 410 (in other words, the peripheral part 412 and the pin 411 ) is the same as the outer diameter (d9) of the rear cylindrical part 320 of the terminal housing 300 . In other words, the free end of the rear cylindrical part 320 provided in the terminal housing 300 is partially provided in the peripheral part 412 and the pin 411 provided in the rear cover 410 .

Preferably, an annular sealing element (not shown) whose outer diameter is the same as the inner diameter ( d13 ) of the rear cover 410 is further provided in the rear cover 410 . When the terminal housing 300 and the rear seat 400 are coupled to each other, the annular sealing member is inserted into the peripheral part 412 of the rear cover 410 fixed by the free end of the rear cylindrical part 320 provided in the terminal housing 300 . Therefore, the interior of the assembly of the terminal housing 300 and the rear seat 400 can be more fully waterproofed.

When the terminal housing 300 and the rear seat 400 are coupled to each other, the pin 411 surrounds a predetermined area of the outer peripheral surface of the rear cylindrical part 320 disposed in the terminal housing 300 . The pin 411 includes a coupling recess 413 configured to fixedly receive the coupling protrusion 321 provided in the rear cylindrical part 320 . The pin 411 and the peripheral part 412 are arranged adjacent to each other. The two pins 411 are disposed on opposite sides in the peripheral direction. A cutout part 415 is formed between the pin 411 and the peripheral part 412 to allow the pin 411 to have an elastically deformable structure. In other words, the cutout part 415 is formed on both sides of the pin 411 . Setting two pins 411 is one of examples in the present invention, and the present invention is not limited thereto.

When the terminal housing 300 and the rear seat 400 are coupled to each other, the pin 411 is temporarily and elastically expanded outward while sliding along the inclined surface of the coupling protrusion 321 . After that, when the coupling protrusion 321 is fully received by the coupling recess 413 of the pin 411 , the pin 411 elastically shrinks to fix the coupling protrusion 321 to the coupling recess 413 . On the contrary, when the terminal housing 300 and the rear seat 400 are disassembled, using a tool such as a driver, the pin 411 is elastically expanded outward through the cut-off part 415, so that the coupling protrusion 321 is separated from the coupling recess 413. .

A plurality of rear receiving members 440 extend rearward from the rear surface of the base 414 provided in the rear cover 410, and meet the front receiving members 430 to form through holes through which the terminals 200 pass. When the assembly of the terminal housing 300 and the rear seat 400 is installed into the housing 100 , a predetermined area of the rear receiving member 440 may be hermetically closed by the annular rib 150 formed in the housing 100 . In other words, the annular rib 150 of the casing 100 protrudes toward the inside of the casing 100 so that the inner diameter (d5) of the annular rib 150 is smaller than the diameter (d10) of the common circumscribed circle O surrounding the rear receiving member 440, so that the ring The type rib 150 may tightly close a predetermined area of each rear receiving member 440 .

It is preferable that the sealing member 500 is disposed in the rear receiving member 440 to waterproof the interior of the assembly of the terminal housing 300 and the rear seat 400 .

Since the annular rib 150 of the casing 100 is configured to tightly close a predetermined area of the rear accommodating element 440, the rear accommodating element 440 can be prevented from moving backward in the casing 100, and the coupling position of the rear accommodating element 440 can be fully ensured. or housing location. Meanwhile, the sealing member 500 disposed in the rear receiving member 440 may be fixed into the rear receiving member 440 to waterproof the inside of the assembly of the terminal housing 300 and the rear seat 400 .

The front receiving element 430 includes a plurality of positioning securing elements and a plurality of clamping elements. For convenience of description, two positioning securing elements and two clamping elements are provided as one of the examples, but the present invention is not limited thereto.

Specifically, the front accommodating element includes: two positioning guarantee elements 431, which are oppositely arranged in an arc-shaped column (arc-shaped column) to ensure the coupling position or receiving position of the terminal; two clamping elements 433, oppositely Provided between the positioning securing members 431 to support the ring-shaped hooking protrusion 220 after the terminal 200 passes therethrough; and a cutout part 439 formed between the positioning securing members 431 and the clamping member 433 . At this time, the two positioning ensuring elements 431 and the two clamping elements 433 are substantially cylindrical. In the present invention, only two clamping elements 433 and two positioning securing elements 431 are disclosed as one of examples, and the present invention is not limited thereto.

Referring to FIGS. 14 and 15 , the clamping element 433 includes: an elastically deformable part 435 disposed in the free end of the clamping element 433 to temporarily and elastically expand when the terminal 200 passes therethrough, and when the terminal 200 is completely worn elastically contract after passing through the clamping member 433 ; and a supporting member 437 extending forward from the front surface of the rear cover 410 (or the front supporting member 420 ) to support the elastically deformable member 435 .

The elastic deformable part 435 includes: an inclined surface 435a, when the terminal 200 passes through the clamping element 433, the ring-shaped hooking protrusion 220 of the terminal slides along the inclined surface 435a; The hooked surface 435b supports the rear surface of the ring-shaped hooking protrusion 220 of the terminal when the holding member 433 is held.

The hooking surface (in other words, the free end of the holding member 433) of the elastically deformable part 435 provided in the holding member 433 is arranged so that when the terminal housing 300 and the rear seat 400 are coupled to each other, they face The free end of the rear guide member 323 provided in the terminal housing 300 . The hooking surface of the elastic deformable part 435 and the free end of the rear guiding element 323 support the ring-shaped hooking protrusion 220 of the terminal 200 to prevent the terminal 200 from moving back and forth in the assembly of the terminal housing 300 and the rear seat 400 . Therefore, it is possible to ensure the coupling position or the receiving position of the terminal 200 within the assembly of the terminal housing 300 and the rear seat 400 .

Preferably, the height of the clamping member 433 is the same as the distance that the free end of the rear guide member provided in the terminal housing 300 is spaced apart from the free end of the clamping member 433 by the distance of the ring-shaped hooking protrusion 220 of the terminal 200. thickness.

The height of the clamping member 433 is smaller than the height of the positioning guarantee member 431 adjacent to the clamping member, and the inner diameter (d11) of the free ends of the two clamping members 433 is smaller than that of the ring-shaped hooking protrusion 220 provided in the terminal 200. Outer diameter (d2).

Accordingly, when the terminal housing 300 and the rear seat 400 are coupled to each other, the rear guide member 323 of the terminal housing 300 is partially inserted into the positioning securing member 431 of the clamping member 433 to accommodate the terminal 200 . The other area of the rear guide member 323 of the terminal housing 300 stably supports the ring-shaped hooking protrusion 220 of the terminal together with the clamping member 433 .

The positioning securing member 431 may be an arc-shaped cylinder, and the rear guide member of the terminal housing is inserted into the positioning securing member. The inner diameter (d12) formed by the two positioning securing members 431 is the same as the outer diameter (d2) of the ring-shaped hooking protrusion 220 provided in the terminal 200, and larger than the inner diameter (d11) formed by the two clamping members 433. The height ( h1 ) of the positioning securing member 431 is greater than the height ( h2 ) of the holding member 433 , and the inner diameter ( d12 ) of the positioning securing member 431 is the same as the outer diameter ( d7 ) of the rear guide member 323 provided in the terminal housing 300 .

Figure 16 is a front perspective view of a sealing element 500 according to the present invention. Figure 17 is a side view of a sealing element 500 according to the present invention.

As shown in FIG. 2 , the sealing member 500 is disposed in the rear receiving member 440 of the rear seat 400 .

As shown in FIGS. 16 to 18 , the sealing member 500 includes a through hole through which the cable passes. Also, the sealing member 500 includes an elastic member 510 and a rigid member 520 coupled to a lower portion (or lower surface) of the elastic member 510 .

The elastic member 510 is disposed forwardly in the rear receiving member 440 of the rear seat 400 , and the outer diameter of the elastic member 510 is larger than the inner diameter of the rear receiving member 440 provided in the rear seat 400 . Accordingly, the elastic member 510 may be fixedly and forcibly fitted into the rear accommodating member 440 to prevent penetration of foreign substances such as water through the rear accommodating member 440 .

Preferably, the elastic member 510 has a bellows shape to have an elastically deformable structure. More preferably, the elastic member 510 is formed of rubber. Therefore, even if the cable passing through the elastic member 510 provided in the rear accommodation member 440 of the rear seat 400 moves within a predetermined range, the elastic deformation of the elastic member 510 does not create a gap between the rear accommodation member 440 and the elastic member 510, And it is possible to continuously make the rear housing member 440 waterproof.

The rigid part 520 is arranged rearwardly within the rear receiving element 440 of the rear seat 400 . Preferably, rigid member 520 is formed from plastic. The rigid part 520 can prevent the elastic part 510 from wearing due to excessive movement of cables passing through the elastic part 510 disposed in the rear receiving element 440 of the rear seat 400 , resulting in enhanced durability and mechanical rigidity of the sealing element 500 .

Preferably, the elastic part 510 and the rigid part 520 provided in the sealing element 500 are manufactured by double injection molding.

It is also preferred that the sealing element further comprises a plurality of rigid seams. A plurality of rigid seams 530 may be formed of a rigid material (eg, a plastic material) and secured to the rigid component and disposed through the elastic component 510 and the rigid component 520 . The rigid seam 530 may pass through the rigid components, and may partially or completely pass through the elastic components. Even if a cable passing through the elastic member 510 disposed in the rear housing member 440 of the rear seat 400 presses the elastic member 510 too much, since the sealing member 500 includes a rigid seam, the elastic member is prevented from being over-pressed in a predetermined direction. Pressure applied to the elastic member can be uniformly distributed to the rigid member, and damage to the elastic member can be sufficiently prevented.

The assembling process of the connector 1000 of the electric vehicle charger according to the present invention will be described below.

In the assembly process of the connector 1000 of the electric vehicle charger according to the present invention, firstly, the cable ends pass through the through holes of the sealing member 500, and the cable ends are pressed, and then they are respectively electrically connected to the terminals 200. Connecting part 230 . The terminal and the cable are pressed and connected to each other before they are inserted into the assembly of the terminal housing and the rear seat, with the result that the press connection process between the terminal and the cable is easily performed.

The rear seat 400 is slid to the rear cylindrical part 320 of the terminal housing 300 to set the coupling protrusion 321 of the terminal housing 300 in the coupling recess 413 of the rear seat 400 , with the result that the rear seat 400 is fixed to the terminal housing 300 .

After that, the plurality of terminals 200 are detachably inserted into the assembly of the terminal housing 300 and the rear seat 400 via the rear receiving member 440 of the rear seat 400 . A sealing member provided behind the connection part 230 of the terminal 200 is inserted into the rear receiving member 440 of the rear seat 400 . At this time, the connection part 210 of the terminal 200 is received by the front guide member 311 of the terminal housing 300 to ensure the coupling position of the terminal 200 . The ring-shaped hooking protrusion 220 of the terminal 200 is fixedly supported by the hooking surface of the clamping member 433 of the rear seat 400 and the free end of the rear guide member 323 of the terminal housing 300 . Meanwhile, the ring-shaped hooking protrusion 220 is provided in the positioning securing member 431 of the rear seat 400 to completely secure the coupling position of the terminal 200 within the terminal housing 300 or the housing 100 .

Thus, the left and right parts of the housing 100 are connected to each other, and the assembly process ends. At this time, the assembly of the terminal housing 300 and the rear seat 400 can be installed into the housing 100 to provide the terminal housing 300 between the first and second annular protrusions 130 and 140 of the housing 100 . The first and second ring-shaped hooking protrusions 330 and 340 tightly close a predetermined area of the rear receiving member 440 of the rear seat through the ring-shaped rib 150 of the housing 100 .

The disassembly process of the connector 1000 of the electric vehicle charger is performed in reverse of the assembly process.

As mentioned above, according to the present invention, the structure of the connector can be simplified, and the number of parts constituting the connector can be reduced. Therefore, the present invention can increase the productivity of the connector and at the same time reduce the production cost.

Also, the connector according to the present invention can be easily assembled and disassembled. The components provided in the connector according to the present invention can be easily assembled and disassembled. Specifically, the terminal can be detachably inserted into the rear seat and the terminal housing after being pressed and connected to the cable. Therefore, the pressing and connecting process between the cable and the terminal can be easily performed, and the assembly or disassembly process of the terminal housing and the back seat can be easily performed. And the process of assembling and disassembling between the components of the terminal housing and the back seat and the terminals can be easily performed. Therefore, when each part is damaged (for example, a pressure state error is generated between the connection part of the terminal and the cable), or parts need to be replaced, assembly and disassembly between parts can be easily performed, and effective Perform connector maintenance.

Also, the accommodating position or the coupling position of the terminal can be completely secured within the connector. Specifically, the ring-shaped hooking protrusion is fixed between the terminal housing and the rear seat, with the result that the accommodating position or the coupling position of the terminal is ensured.

Also, the coupling positions of the terminal housing and the back seat installed in the connector according to the present invention are completely secured. In particular, forward and backward movement of the terminal housing and the rear seat can be prevented within the housing.

According to the invention, the sealing element is arranged at the front or the rear of the rear seat. Therefore, separation of the sealing member can be prevented, and the inside of the connector can be made waterproof.

It will be apparent to those skilled in the art that various modifications and changes can be made without departing from the spirit or scope of the present invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims (19)

1. A connector for an electric vehicle charger, comprising: shell; a terminal housing mounted in said housing; a rear seat removably mounted in said terminal housing; and a plurality of terminals inserted into the terminal housing via the rear seat, the plurality of terminals respectively having hooking protrusions formed on their outer peripheral surfaces, wherein the hooking protrusion of each terminal is disposed between the terminal housing and the rear seat, and a first terminal fixing part is provided in the terminal housing to prevent the hooking protrusion of each terminal from moving forward, and a second terminal fixing part is provided in the rear seat to prevent the hooking protrusion of each terminal from moving backward, and wherein the first terminal fixing part includes a plurality of rear guide elements extending rearward from the terminal housing, and The second terminal fixing part includes a plurality of clamping elements extending forward from the rear seat to face the plurality of rear guides when the terminal housing and the rear seat are coupled to each other. element. 2. The connector of the electric vehicle charger according to claim 1, wherein the clamping element comprises an elastically deformable part, and the elastically deformable part comprises: an inclined surface configured to guide the sliding of the hooking protrusion when the terminal passes through the clamping element; and The hooking surface is used to support the rear surface of the hooking protrusion. 3. The connector for an electric vehicle charger according to claim 1, wherein said rear guide member extends from said terminal housing to engage said clamping member when said terminal housing and said rear seat are coupled to each other. The elements are spaced apart a predetermined distance as far as the thickness of the hooking protrusions. 4. The connector of an electric vehicle charger according to claim 1, wherein the outer diameter of the rear guide member is the same as the height of the hooking protrusion. 5. The connector of an electric vehicle charger according to claim 1, wherein the rear seat includes a plurality of positioning assurance elements, and the plurality of positioning assurance elements are arranged between the plurality of clamping elements to hold the inserting the plurality of rear guide elements into the plurality of positioning assurance elements, and The inner diameter of the positioning securing element is the same as the height of the hooking protrusion. 6. The connector for an electric vehicle charger according to claim 1, wherein said rear seat includes a plurality of rear receiving elements extending rearwardly from said rear seat and clamping with said rear seat components are connected, and A sealing element is provided in the rear housing element, the sealing element having a through hole for the cable to pass therethrough. 7. The connector of an electric vehicle charger according to claim 6, wherein the sealing element comprises: An elastic part is disposed forwardly in the rear receiving element; and a rigid part is coupled to the rear surface of the elastic part. 8. The connector of an electric vehicle charger according to claim 7, wherein the elastic member has a bellows shape, and an outer diameter of the elastic member is larger than an inner diameter of the rear accommodation member. 9. The connector of an electric vehicle charger according to claim 7, wherein the elastic member is formed of rubber, and the rigid member is formed of plastic. 10. The connector for an electric vehicle charger according to claim 7, wherein said sealing member comprises a plurality of rigid seams formed of rigid material passing through said elastic member and said rigid member. 11. The connector of an electric vehicle charger according to claim 1, wherein the terminal housing and the rear seat are detachably mounted in the housing. 12. The connector of an electric vehicle charger according to claim 6, wherein an annular rib protrudes inwardly in said housing to hermetically close a predetermined area of a rear accommodating member provided in said rear seat. 13. The connector of an electric vehicle charger according to claim 12, wherein an inner diameter of the annular rib is smaller than a diameter of a common circumscribed circle surrounding the plurality of rear receiving members. 14. The connector of an electric vehicle charger according to claim 11, wherein at least one ring-shaped hooking protrusion is provided on an outer peripheral surface of said terminal housing, and At least one ring-shaped protrusion protrudes inwardly from the housing to support the ring-shaped hooking protrusion of the terminal housing. 15. The connector of an electric vehicle charger according to claim 1, wherein said plurality of terminals includes at least one communication terminal and at least one electrical terminal. 16. A connector for an electric vehicle charger, comprising: shell; a terminal housing mounted in said housing; a rear seat, detachably installed in the terminal housing; a plurality of terminals including hooking protrusions formed on outer peripheral surfaces thereof, to which a plurality of cables are connected; and a sealing element coupled to the rear seat to allow cables to pass therethrough, wherein when the plurality of terminals are inserted into the terminal housing via the rear seat, the hooking protrusion of each terminal is disposed between the terminal housing and the rear seat, a rear guide member is provided in the terminal housing to be in contact with the front surface of the hooking protrusion of each terminal, and A plurality of holding members are provided in the rear seat to be in contact with a rear surface of the hooking protrusion of each terminal. 17. The connector of an electric vehicle charger according to claim 16, wherein the rear guide member prevents the plurality of terminals from moving forward, and the clamping member prevents the plurality of terminals from moving backward. 18. The connector of an electric vehicle charger according to claim 16, wherein the clamping element comprises an elastically deformable part comprising: an inclined surface configured to guide sliding of the hooking protrusion when the plurality of terminals pass through the clamping member; and The hooking surface is used to support the rear surface of the hooking protrusion. 19. The connector for an electric vehicle charger according to claim 16, wherein said rear guide member extends from said terminal housing to engage said clamping member when said terminal housing and said rear seat are coupled to each other. The elements are spaced apart a predetermined distance as far as the thickness of the hooking protrusions.