Discharging socket

Abstract

The discharging socket comprises a shell, a plug core module, a safety door assembly, a control assembly and a connecting circuit are arranged in the shell, the plug core module comprises a limiting shell and a set of plug bushes, and jacks are formed in the top face of the shell; the safety door assembly comprises a safety door and an elastic piece; the safety door is horizontally arranged above the insertion core module in a reciprocating sliding manner through the elasticity of the elastic piece; the control assembly comprises a microswitch and a triggering piece, the triggering piece is vertically arranged above the microswitch in a sliding mode, the triggering end of the microswitch abuts against the bottom of the triggering piece, a driving groove is formed in the back face of the safety door, and the driving groove is provided with a vertex, a first driving face and a second driving face, and the bottoms of the plug bush and the microswitch are connected to the connecting circuit. According to the scheme, the trigger piece is driven to move downwards through translation of the safety door so as to trigger the microswitch, conduction of a connecting circuit is achieved, and the safety of socket discharging is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of sockets, and in particular to a discharge socket. Background Art

[0002] In existing electric vehicles powered by battery systems, in order to adapt to different usage scenarios and usage requirements, an integrated charging and discharging system is provided, which requires a matching discharge socket. Existing discharge sockets generally have more than one socket to connect to the power supply. This type of access socket is open, which can easily cause electric shock due to misoperation, and can also easily allow foreign objects to enter or be corroded by water vapor in the external environment. Therefore, a safety door that blocks the socket is provided in the existing socket for protection, as disclosed in publication number CN106532323A. However, for electric vehicles, the voltage connected during charging is relatively high, and simply providing a safety door structure is not enough to ensure its safety. Therefore, how to ensure the safety of discharge sockets adapted to electric vehicles is an urgent problem that needs to be solved. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a discharge socket.

[0004] The purpose of the present invention is achieved through the following technical solutions: The discharge socket comprises a shell, wherein the shell has a plug module, a safety door assembly, a control assembly and a connecting circuit built in the shell, the plug module comprises a limit shell arranged at the bottom of the shell and a group of plug sleeves built in the limit shell, and the top surface of the shell is provided with a socket matching the plug sleeve; the safety door assembly comprises a safety door and an elastic member arranged on the safety door, and the safety door is horizontally reciprocated and slid above the plug module by the elasticity of the elastic member; the control assembly comprises a micro switch and a trigger member vertically built into the limit shell, the trigger member is vertically slidably arranged above the micro switch, and the trigger end of the micro switch abuts against the bottom of the trigger member The back of the safety door has a concave driving groove, and the driving groove has a vertex and a first driving surface and a second driving surface respectively arranged on both sides of the vertex and extending downwardly. The bottom of the socket and the microswitch are both connected to the connecting circuit. In the first state, the safety door is in the initial position, and the top of the trigger member abuts against the vertex. At this time, the trigger member does not move downward to trigger the microswitch, and the connecting circuit is not conductive; in the second state, the plug is inserted from the socket and drives the safety door to translate until it is inserted into the socket. At the same time, the first driving surface or the second driving surface drives the trigger member downward by translation to trigger the microswitch, thereby realizing the conduction of the connecting circuit.

[0005] Preferably, the trigger member includes a connecting plate, a top rod and a support leg, the top rod is vertically fixed to the center of the top surface of the connecting plate, the two support legs are symmetrically arranged on the left and right sides of the connecting plate, the support leg includes a connected vertical section and an inclined section, the two vertical sections are vertically fixed on both sides of the connecting plate respectively, the three form a recess, the trigger end of the micro switch is located in the recess; the inclined section extends upward from the bottom of the vertical section and forms a V-shape with the vertical section.

[0006] Preferably, the top of the trigger member is the top of the push rod, and both sides of the top of the push rod are inclined surfaces with a greater slope than the first driving surface and the second driving surface.

[0007] Preferably, a reset spring is provided on the trigger end jacket of the micro switch, and two ends of the reset spring are respectively abutted between the micro switch and the recess.

[0008] Preferably, a partition is horizontally arranged in the shell, the partition is clamped above the limit shell and divides the inner cavity of the shell into two layers, the safety door is slidingly arranged on the upper layer, and a guide groove that allows the trigger member to slide vertically is provided in the limit shell. The partition is provided with an opening connected to the guide groove and a second socket that matches the socket.

[0009] Preferably, the bottom of the opening has a lower extension arm extending downward and clamped in the guide slot, and notches matching the end of the inclined section are vertically opened on the left and right sides of the lower extension arm, and the end of the inclined section is slidably clamped in the notch.

[0010] Preferably, a group of the sockets includes two mating electrical sockets and one grounding socket to respectively constitute a two-hole socket and a three-hole socket, and the two pairs of the electrical sockets are arranged opposite to each other. The safety door is divided into a first part and a second part from its middle part to respectively shield the two pairs of the electrical sockets, the first part includes two first connecting sockets, and the side of the first connecting sockets is provided with a first driving inclined surface, and the second part includes two second connecting sockets, and the side of the second connecting sockets is provided with a second driving inclined surface.

[0011] Preferably, a first limit block and a second limit block are provided on the partition, the first limit block is located in the first connecting socket on the outermost side and is opposite to the first driving bevel to limit the movement limit position of the first part; the second limit block is located in the second connecting socket on the outermost side and is opposite to the second driving bevel to limit the movement limit position of the second part.

[0012] Preferably, a groove is provided in the middle portion of the safety door, the elastic member is provided in the groove, two fixing blocks are relatively fixed on the top surface of the partition, and both ends of the elastic member are respectively in contact with the two fixing blocks.

[0013] Preferably, the shell includes a shell and a cover body, the cover body is detachably covered on the shell body, a sealing ring is embedded in the connection between the two, the top two sides of the partition have baffles extending upward into the cover body, and a slider is protruded in the middle of the two sides of the safety door parallel to its moving direction, and the slider is slidably clamped between the baffle and the cover body.

[0014] The beneficial effects of the present invention are mainly reflected in: A micro switch is provided inside the socket to control the conduction of the internal connection circuit of the socket. The micro switch and the trigger member are arranged vertically so that the trigger direction of the micro switch is consistent with the insertion direction of the plug, and a driving groove is provided at the bottom of the safety door so that a hard abutment relationship is formed in sequence between the safety door, the trigger member and the micro switch. The horizontal movement of the safety door is then converted into vertical movement of the trigger member through the first driving surface and the second driving surface to achieve the purpose of triggering the micro switch. Such a structure is stable and reliable, so that the socket will only be energized when the plug is correctly inserted into the socket. Any non-plug or abnormal insertion of the plug, such as the accidental insertion of foreign objects and the single-pole insertion of the plug, will not conduct the connection circuit, thereby ensuring the safety of the socket discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The technical solution of the present invention will be further described below with reference to the accompanying drawings: Figure 1 : A schematic diagram of an embodiment of the present invention; Figure 2 : A cross-sectional view of an embodiment of the present invention; Figure 3 : Schematic diagram of a triggering member in an embodiment of the present invention; Figure 4 : Schematic diagram of an embodiment of the present invention without the cover; Figure 5 : Schematic diagram of an embodiment of the present invention without the cover and safety assembly; Figure 6 : Schematic diagram of the back side of the partition in the embodiment of the present invention; Figure 7 : A cross-sectional view from another angle of the embodiment of the present invention; Figure 8 : A schematic cross-sectional view of an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0017] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0018] like Figures 1 to 8 As shown, the present invention discloses a discharge socket, comprising a shell 1, wherein the shell 1 has a core module, a safety door assembly, a control assembly and a connecting circuit built in. The core module comprises a limit shell 201 arranged at the bottom of the shell 1 and a group of sockets 202 built in the limit shell 201, and the top surface of the shell 1 is provided with a socket 101 matching the socket 202; the safety door assembly comprises a safety door 3 and an elastic member 4 arranged on the safety door 3, and the safety door 3 is horizontally reciprocated and slid above the core module by the elasticity of the elastic member 4; the control assembly comprises a micro switch 5 and a trigger member 6 vertically built into the limit shell 201, and the trigger member 6 is vertically slidably arranged above the micro switch 5, and the trigger end of the micro switch 5 is in contact with the trigger end of the trigger member 6. The bottom is abutted, and the back of the safety door 3 has a concave driving groove, and the driving groove has a vertex 302 and a first driving surface 303 and a second driving surface 304 which are arranged on both sides of the vertex 302 and extend downwardly. The bottoms of the socket 202 and the microswitch 5 are both connected to the connecting circuit. In the first state, the safety door 3 is in the initial position, and the top of the trigger member 6 abuts against the vertex 302. At this time, the trigger member 6 does not move downward to trigger the microswitch 5, and the connecting circuit is not conductive; in the second state, the plug is inserted from the socket 101 and drives the safety door 3 to translate until it is inserted into the socket 202. At the same time, the first driving surface 303 or the second driving surface 304 drives the trigger member 6 to move downward by translation to trigger the microswitch 5, thereby realizing the conduction of the connecting circuit.

[0019] In this solution, a microswitch 5 is provided inside the socket to control the conduction of the socket's internal connection circuit (not shown in the figure; the connection circuit can be provided inside or outside the housing 1. For example, in one feasible embodiment, the connection circuit is provided on a PCB board, which is provided at the bottom of the housing 1. The microswitch 5 and the bottom pins of the socket 202 are plugged into the PCB board for connection). In this solution, the microswitch 5 and the trigger member 6 are arranged vertically so that the triggering direction of the microswitch 5 is consistent with the insertion direction of the plug. A driving groove is provided at the bottom of the safety door 3 so that the safety door 3, the trigger member 6, and the microswitch 5 form a rigid abutment relationship. The horizontal movement of the safety door 3 is then converted into vertical movement of the trigger member 6 by the first driving surface 303 and the second driving surface 304 to trigger the microswitch 5. This structure is stable and reliable, ensuring that the socket is energized only when the plug is correctly inserted into the socket. Any non-plug or abnormal plug insertion, such as the misinsertion of a foreign object or a single-pole plug, will not conduct the connection circuit, thereby ensuring the safety of the socket discharge.

[0020] Specific examples Figure 2 and Figure 3 As shown, the trigger member 6 includes a connecting plate 601, a top rod 602 and a support leg 603. The top rod 602 is vertically fixed to the center of the top surface of the connecting plate 601. The two support legs 603 are symmetrically arranged on the left and right sides of the connecting plate 601. The support legs 603 include a connected vertical section 6031 and an inclined section 6032. The two vertical sections 6031 are vertically fixed on both sides of the connecting plate 601 respectively. The three form a recess. The trigger end of the micro switch 5 is located in the recess. In order to ensure the effectiveness of the abutment between the trigger member 6 and the top trigger end of the micro switch 5, the top inner surface of the recess is flat. The inclined section 6032 extends upward from the bottom of the vertical section 6031 and forms a V-shape with the vertical section 6031. This structure can, on the one hand, minimize the overall weight of the trigger member 6 and reduce the contact area between the support leg 603 and the limit housing 201 during vertical sliding, thereby ensuring the smooth vertical movement of the trigger member 6. On the other hand, the support leg 603 itself has a certain degree of elasticity, so that when the first driving surface 303 or the second driving surface 304 drives the trigger member 6 to move vertically through translation, hard contact between the two sides of the trigger member 6 and the limit housing 201 is avoided, thereby preventing unnecessary wear or jamming, further improving the smooth movement of the trigger member 6. The support legs 603 are symmetrically arranged on both sides of the connecting plate 601, and also have a left-right centering effect on the trigger member 6, making the trigger member 6 more stable during vertical movement.

[0021] Furthermore, the top of the trigger member 6 is the top of the push rod 602. Both sides of the top of the push rod 602 are inclined surfaces with a greater slope than the first driving surface 303 and the second driving surface 304. This allows the top of the push rod 602 to form a point contact with the driving groove, reducing the contact area between the top of the push rod 602 and the driving groove, thereby improving the smoothness of the sliding of the top of the trigger member 6 along the driving groove. Furthermore, the driving groove has a certain thickness to ensure the strength and hardness of the contact between it and the push rod 602, making it less susceptible to damage and ensuring reliability and stability during long-term use.

[0022] In the above scheme, the safety door 3, the trigger member 6 and the micro switch 5 form a hard abutment relationship in sequence. After the safety door 3 is reset, the trigger member 6 can be reset by the elastic force of the automatic rebound of the trigger end of the micro switch 5.

[0023] In another feasible embodiment, a reset spring may be provided on the trigger end of the micro switch 5, with both ends of the reset spring respectively abutting between the micro switch 5 and the recess, so as to utilize the elastic force of the reset spring to help the trigger member 6 to reset quickly.

[0024] A partition 102 is horizontally arranged in the shell 1, and the partition 102 is clamped above the limit shell 201 and divides the inner cavity of the shell 1 into two layers, the upper and lower layers. The safety door 3 is slidably arranged in the upper layer, and a guide groove 203 is provided in the limit shell 201 to enable the trigger member 6 to slide vertically. An opening 103 connected to the guide groove 203 and a second socket 113 matching the socket 101 is opened on the partition 102. The opening 103 exposes the top of the trigger member 6, and the second socket 113 allows the plug to be inserted into the socket 202.

[0025] Furthermore, the bottom of the opening 103 has a lower extension arm 110 extending downward and clamped in the guide slot 203, and the left and right sides of the lower extension arm 110 are vertically opened with notches 104 that match the end of the inclined section 6032. The end of the inclined section 6032 is slidably clamped in the notch 104 to limit the vertical movement of the trigger member 6 to be smoother, avoid offset or skew, and improve the smoothness and stability of the movement of the trigger member 6.

[0026] like Figure 4 and Figure 8As shown, a set of sockets 202 includes two mating electrical sockets and one grounding socket, forming a two-hole socket and a three-hole socket, respectively. The two pairs of electrical sockets are arranged opposite each other. The safety door 3 is divided into a first portion 305 and a second portion 306 from its middle portion to respectively shield the two pairs of electrical sockets. The first portion 305 includes two first connecting sockets 307, each of which is provided with a first driving slope 308 on its side. The second portion 306 includes two second connecting sockets 309, each of which is provided with a second driving slope 310 on its side. The first driving slope 308 and the second driving slope 310 are respectively used to drive the safety door 3 to translate in different directions. For example, in the illustrated embodiment, the first driving slope 308 is used to drive the safety door 3 to translate to the right, and the second driving slope 310 is used to drive the safety door 3 to translate to the left. This structure fully utilizes the translational movement of the safety door 3, ensuring that any translational movement of the safety door 3 in any direction can prevent mis-insertion of the pair of power sockets, thereby providing a safety protection function. In the preferred embodiment shown in the figure, the ferrule module is a five-hole socket, including a two-hole socket and a three-hole socket. In other feasible embodiments, the ferrule module can also be two sets of two sockets.

[0027] Furthermore, the partition 102 is provided with a first limit block 111 and a second limit block 112. The first limit block 111 is located in the outermost first connection hole 307 and faces the first driving inclined surface 308 to limit the movement limit of the first portion 305. The second limit block 112 is located in the outermost second connection hole 309 and faces the second driving inclined surface 310 to limit the movement limit of the second portion 306. The provision of the first limit block 111 and the second limit block 112 effectively limits the movement range of the safety door 3, thereby preventing the safety door 3 from excessive movement and causing unnecessary wear.

[0028] A groove 301 is provided in the middle of the safety door 3, and the elastic member 4 is disposed in the groove 301. Two fixing blocks 105 are fixedly disposed on the top surface of the partition 102, and the ends of the elastic member 4 respectively abut against the two fixing blocks 105. Preferably, the elastic member 4 is a spring, and the elastic member 4 is preferably provided in the middle of the safety door 3 to ensure that the safety door 3 moves as smoothly as possible.

[0029] The housing 1 in this embodiment includes a shell 106 and a cover 107. The cover 107 is removably attached to the shell 106, with a sealing ring 108 embedded in the connection between the two. The top and sides of the partition 102 have baffles 109 extending upward into the cover 107. Sliders 312 are protruding from the middle of the two sides of the safety door 3, parallel to its movement direction. The sliders 312 are slidably engaged between the baffles 109 and the cover 107. The sliders 312 are preferably raised points, which limit their sliding movement while reducing the contact area between them, the baffles 109 and the cover 107, ensuring smooth movement of the safety door 3. A snap is provided on the outer edge of the cover 107, and a corresponding block is provided on the outer side of the shell 106, so that the cover 107 and the shell 106 are engaged.

[0030] The top of the cover 107 may further be provided with an annular groove along its edge to embed a sealing ring to seal the gap after the cover 107 is connected to other components, so as to ensure the safety of the socket.

[0031] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0032] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. Discharge socket, characterized by: The invention comprises a shell (1), wherein the shell (1) is equipped with a plug module, a safety door assembly, a control assembly and a connecting circuit, wherein the plug module comprises a limit shell (201) arranged at the bottom of the shell (1) and a group of plug sleeves (202) built into the limit shell (201), and the top surface of the shell (1) is provided with a socket (101) matching the plug sleeve (202); the safety door assembly comprises a safety door (3) and an elastic member (4) arranged on the safety door (3), and the safety door (3) is horizontally reciprocated and slidably arranged above the plug module by the elasticity of the elastic member (4); the control assembly comprises a micro switch (5) and a trigger member (6) vertically built into the limit shell (201), and the trigger member (6) is vertically slidably arranged above the micro switch (5), and the trigger end of the micro switch (5) is in contact with the bottom of the trigger member (6). The back of the safety door (3) has a concave driving groove, and the driving groove has a vertex (302) and a first driving surface (303) and a second driving surface (304) respectively arranged on both sides of the vertex (302) and extending downwardly. The bottom of the socket (202) and the micro switch (5) are both connected to the connection circuit. In the first state, the safety door (3) is located in the initial position, and the top of the trigger member (6) abuts against the vertex (302). At this time, the trigger member (6) does not move downward to trigger the micro switch (5), and the connection circuit is not conductive. In the second state, the plug is inserted from the socket (101) and drives the safety door (3) to move horizontally until it is inserted into the socket (202). At the same time, the first driving surface (303) or the second driving surface (304) drives the trigger member (6) to move downward by translation to trigger the micro switch (5), thereby realizing the conduction of the connection circuit.

2. The discharge socket according to claim 1, characterized in that: The trigger member (6) comprises a connecting plate (601), a top rod (602) and a support leg (603), wherein the top rod (602) is vertically fixed at the center of the top surface of the connecting plate (601), and the two support legs (603) are symmetrically arranged on the left and right sides of the connecting plate (601), and the support leg (603) comprises a vertical section (6031) and an inclined section (6032) connected to each other, and the two vertical sections (6031) are respectively vertically fixed on the two sides of the connecting plate (601), and the three form a recess, and the trigger end of the micro switch (5) is located in the recess; the inclined section (6032) extends upward from the bottom of the vertical section (6031) and forms a V-shape with the vertical section (6031).

3. The discharge socket according to claim 2, characterized in that: The top of the trigger member (6) is the top of the push rod (602), and both sides of the top of the push rod (602) are inclined surfaces with a greater slope than the first driving surface (303) and the second driving surface (304).

4. The discharge socket according to claim 3, characterized in that: A reset spring is provided on the trigger end jacket of the micro switch (5), and both ends of the reset spring abut against between the micro switch (5) and the recess respectively.

5. The discharge socket according to claim 3 or 4, characterized in that: A partition (102) is horizontally arranged in the shell (1), and the partition (102) is clamped above the limit shell (201) and divides the inner cavity of the shell (1) into two layers, the upper and lower layers. The safety door (3) is slidably arranged in the upper layer. A guide groove (203) that allows the trigger member (6) to slide vertically is provided in the limit shell (201). An opening (103) connected to the guide groove (203) and a second socket (113) matching the socket (101) are provided on the partition (102).

6. The discharge socket according to claim 5, characterized in that: The bottom of the opening (103) has a lower extension arm (110) extending downward and being clamped in the guide slot (203), and notches (104) matching the end of the inclined section (6032) are vertically opened on the left and right sides of the lower extension arm (110), and the end of the inclined section (6032) is slidably clamped in the notch (104).

7. The discharge socket according to claim 6, characterized in that: A group of sockets (202) includes two pairs of electrical sockets and one grounding socket, respectively constituting a two-hole socket and a three-hole socket. The two pairs of electrical sockets are arranged opposite to each other. The safety door (3) is divided into a first part (305) and a second part (306) from its middle part, respectively shielding the two pairs of electrical sockets. The first part (305) includes two first connecting sockets (307), and the side of the first connecting sockets (307) is provided with a first driving inclined surface (308). The second part (306) includes two second connecting sockets (309), and the side of the second connecting sockets (309) is provided with a second driving inclined surface (310).

8. The discharge socket according to claim 7, characterized in that: A first limiting block (111) and a second limiting block (112) are provided on the partition (102), wherein the first limiting block (111) is located in the first connecting socket (307) at the outermost side and is directly opposite to the first driving inclined surface (308) to limit the movement limit position of the first part (305); and the second limiting block (112) is located in the second connecting socket (309) at the outermost side and is directly opposite to the second driving inclined surface (310) to limit the movement limit position of the second part (306).

9. The discharge socket according to claim 8, characterized in that: A groove (301) is provided in the middle portion of the safety door (3), the elastic member (4) is arranged in the groove (301), two fixed blocks (105) are fixedly provided on the top surface of the partition (102), and the two ends of the elastic member (4) are respectively in contact with the two fixed blocks (105).

10. The discharge socket according to claim 9, characterized in that: The housing (1) comprises a shell (106) and a cover (107), wherein the cover (107) is detachably mounted on the shell (106), and a sealing ring (108) is embedded in the connection between the shell and the cover. The top two sides of the partition (102) are provided with baffles (109) extending upward into the cover (107). The safety door (3) is provided with sliders (312) protruding from the middle of the two sides parallel to the moving direction thereof, and the sliders (312) are slidably mounted between the baffles (109) and the cover (107).

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