Discharge socket

Abstract

The application discloses a discharge socket, which comprises a shell, a plug core module, a safety door assembly, a control assembly and a connecting circuit built in the shell, the plug core module comprises a limiting shell and a set of plug sleeves, and the top surface of the shell is provided with a plug hole; the safety door assembly comprises a safety door and an elastic piece, the safety door is horizontally reciprocally slidably arranged above the plug core module through the elasticity of the elastic piece; the control assembly comprises a micro switch and a trigger piece, the trigger piece is vertically slidably arranged above the micro switch, the trigger end of the micro switch is in abutment with the bottom of the trigger piece, the back surface of the safety door is provided with a driving groove, the driving groove is provided with a top point and a first driving surface and a second driving surface which are separately arranged on the two sides of the top point and extend downwardly and obliquely, and the plug sleeves and the bottom of the micro switch are connected to the connecting circuit. The translation of the safety door drives the downward movement of the trigger piece to trigger the micro switch, realizes the conduction of the connecting circuit, and guarantees the safety of the socket discharge.

Description

Technical Field

[0001] This invention relates to the field of socket technology, and more specifically to a discharge socket. Background Technology

[0002] In existing battery-powered electric vehicles, integrated charging and discharging systems are provided to adapt to different usage scenarios and needs, requiring compatible discharge sockets. Existing discharge sockets typically have more than one socket for power connection. These open sockets are prone to electric shock due to accidental operation and are also susceptible to foreign object ingress or corrosion from external moisture. Therefore, existing sockets incorporate safety shutters to protect the sockets, as disclosed in publication number CN106532323A. However, for electric vehicles, the voltage connected during charging is higher, and simply using safety shutters is insufficient to guarantee safety. Therefore, ensuring the safe use of discharge sockets compatible with electric vehicles is a pressing issue that needs to be addressed. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a discharge socket.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A discharge socket includes a housing, which houses a ferrule module, a safety door assembly, a control assembly, and a connection circuit. The ferrule module includes a limiting housing located at the bottom of the housing and a set of sockets built into the limiting housing. The top surface of the housing has a socket that matches the sockets. The safety door assembly includes a safety door and an elastic element mounted on the safety door. The safety door slides horizontally above the ferrule module due to the elasticity of the elastic element. The control assembly includes a micro switch and a trigger element vertically built into the limiting housing. The trigger element slides vertically above the micro switch, and the trigger end of the micro switch abuts against the bottom of the trigger element. The safety door has a recessed driving groove on its back. The driving groove has a apex and a first driving surface and a second driving surface located on both sides of the apex and extending downwards at an incline. The bottom of the socket and the micro switch are both connected to the connection circuit. In the first state, the safety door is in the initial position, and the top of the trigger abuts against the apex. At this time, the trigger does not move down to trigger the micro switch, and the connection circuit is not conductive. In the second state, the plug is inserted from the socket and drives the safety door to move horizontally until it is inserted into the socket. At the same time, the first driving surface or the second driving surface drives the trigger to move downwards by horizontal movement to trigger the micro switch, thereby enabling the connection circuit to conduct.

[0006] Preferably, the trigger includes a connecting plate, a push rod, and a support leg. The push 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. Each support leg includes a vertical section and an inclined section connected together. The two vertical sections are vertically fixed to the two sides of the connecting plate, and the three together 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.

[0007] Preferably, the top of the trigger is the top of the push rod, and the top two sides of the push rod are inclined surfaces with a slope greater than that of the first driving surface and the second driving surface.

[0008] Preferably, a reset spring is sleeved on the trigger end of the micro switch, and the two ends of the reset spring abut against the micro switch and the recess, respectively.

[0009] Preferably, a partition is horizontally arranged inside the outer shell. The partition is engaged above the limiting housing and divides the inner cavity of the outer shell into upper and lower layers. The safety door is slidably arranged in the upper layer. The limiting housing is provided with a guide groove that allows the trigger to slide vertically. The partition is provided with an opening that communicates with the guide groove and a second insertion hole that matches the insertion hole.

[0010] Preferably, the bottom of the opening has a lower extension arm that extends downward and is engaged in the guide groove. The left and right sides of the lower extension arm have vertically opened notches that match the ends of the inclined section, and the ends of the inclined section are slidably engaged in the notches.

[0011] Preferably, a set of the sockets includes two 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 to each other. The safety door is divided into a first part and a second part from its middle part, so as to block the two pairs of electrical sockets respectively. The first part includes two first connecting holes, and the side of the first connecting hole is provided with a first driving slope. The second part includes two second connecting holes, and the side of the second connecting hole is provided with a second driving slope.

[0012] Preferably, the partition is provided with a first limiting block and a second limiting block. The first limiting block is located in the first connecting hole on the outermost side and faces the first driving inclined surface to limit the movement limit of the first part. The second limiting block is located in the second connecting hole on the outermost side and faces the second driving inclined surface to limit the movement limit of the second part.

[0013] Preferably, the safety door has a groove in the middle, the elastic element is disposed in the groove, and two fixing blocks are fixedly disposed opposite each other on the top surface of the partition, with the two ends of the elastic element abutting against the two fixing blocks respectively.

[0014] Preferably, the outer casing includes a shell and a cover, the cover being detachably mounted on the shell, a sealing ring being embedded at the connection between the two, the top two sides of the partition having baffles extending upward into the cover, and the safety door having a slider protruding from the middle of its two sides parallel to its direction of movement, the slider being slidably engaged between the baffles and the cover.

[0015] The beneficial effects of this invention are mainly reflected in:

[0016] A microswitch is installed inside the socket to control the conduction of the internal circuit. The microswitch and trigger are vertically arranged so that the triggering direction of the microswitch is consistent with the insertion direction of the plug. A driving groove is set at the bottom of the safety door, so that the safety door, trigger, and microswitch form a rigid contact relationship in sequence. The horizontal movement of the safety door is converted into the vertical movement of the trigger through the first and second driving surfaces, thereby triggering the microswitch. This structure is stable and reliable, so that the socket will only be powered when the plug is correctly inserted. Any non-plug or abnormal plug insertion, such as the insertion of foreign objects or single-pole insertion, will not conduct the connection circuit, ensuring the safety of the socket discharge. Attached Figure Description

[0017] The technical solution of the present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 : A schematic diagram of an embodiment of the present invention;

[0019] Figure 2 Cross-sectional view of an embodiment of the present invention;

[0020] Figure 3 : A schematic diagram of the trigger element in an embodiment of the present invention;

[0021] Figure 4 : A schematic diagram of the present invention with the cover removed;

[0022] Figure 5 : A schematic diagram of an embodiment of the present invention with the cover and safety components removed;

[0023] Figure 6 : A schematic diagram of the back of the partition in an embodiment of the present invention;

[0024] Figure 7 : A cross-sectional view from another angle of an embodiment of the present invention;

[0025] Figure 8: A cross-sectional schematic diagram of an embodiment of the present invention. Detailed Implementation

[0026] The present invention will now be described in detail 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 included within the scope of protection of the present invention.

[0027] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.

[0028] like Figures 1 to 8As shown, this invention discloses a discharge socket, including a housing 1. The housing 1 houses a ferrule module, a safety door assembly, a control assembly, and a connection circuit. The ferrule module includes a limiting housing 201 disposed at the bottom of the housing 1 and a set of inserts 202 built into the limiting housing 201. The top surface of the housing 1 is provided with a socket 101 that matches the inserts 202. The safety door assembly includes a safety door 3 and an elastic element 4 disposed on the safety door 3. The safety door 3 is horizontally reciprocating above the ferrule module due to the elasticity of the elastic element 4. The control assembly includes a micro switch 5 and a trigger 6 vertically built into the limiting housing 201. The trigger 6 is vertically slidably disposed above the micro switch 5, and the trigger end of the micro switch 5 is connected to the trigger 6. The bottom of the safety door 3 has a concave driving groove on its back. The driving groove has a vertex 302 and a first driving surface 303 and a second driving surface 304 that are respectively disposed on both sides of the vertex 302 and extend downward. 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 in the initial position, and the top of the trigger 6 abuts against the vertex 302. At this time, the trigger 6 does not move down 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 6 to move downward by horizontal movement to trigger the micro switch 5, thereby realizing the conduction of the connection circuit.

[0029] This solution incorporates a micro switch 5 inside the socket to control the conduction of the internal connection circuit (not shown in the figure; the connection circuit can be located inside or outside the housing 1. For example, in a feasible embodiment, the connection circuit is located on a PCB board at the bottom of the housing 1, and the micro switch 5 and the bottom pin of the socket 202 are connected to the PCB board). The micro switch 5 and the trigger 6 are vertically positioned so that the triggering direction of the micro switch 5 is consistent with the insertion direction of the plug. A driving groove is provided at the bottom of the safety door 3, creating a rigid contact between the safety door 3, the trigger 6, and the micro switch 5. The first driving surface 303 and the second driving surface 304 convert the horizontal movement of the safety door 3 into the vertical movement of the trigger 6, thus triggering the micro switch 5. This structure is stable and reliable, ensuring that the socket is powered only when the plug is correctly inserted. Any non-plug or abnormal plug insertion, such as the insertion of foreign objects or a single-pole plug, will not conduct the connection circuit, guaranteeing the safety of the socket's discharge.

[0030] Specific examples Figure 2 and Figure 3As shown, the trigger 6 includes a connecting plate 601, a push rod 602, and a support leg 603. The push rod 602 is vertically fixed to the center of the top surface of the connecting plate 601. The two supports 603 are symmetrically arranged on the left and right sides of the connecting plate 601. Each support leg 603 includes a vertical section 6031 and an inclined section 6032 connected to each other. The two vertical sections 6031 are vertically fixed to the two sides of the connecting plate 601, and 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 contact between the trigger 6 and the top trigger end of the micro switch 5, the top inner surface of the recess is a plane. The inclined segment 6032 extends upward from the bottom of the vertical segment 6031, forming a V-shape with the vertical segment 6031. This structure minimizes the overall weight of the trigger 6 and reduces the contact area between the support leg 603 and the limiting housing 201 during vertical sliding, ensuring smooth vertical movement of the trigger 6. Furthermore, the support leg 603 possesses a certain degree of elasticity, preventing hard contact between the sides of the trigger 6 and the limiting housing 201 during the vertical movement driven by the first driving surface 303 or the second driving surface 304, thus avoiding unnecessary wear or jamming and further improving the smoothness of the trigger 6's movement. The support legs 603 are symmetrically arranged on both sides of the connecting plate 601, also providing left-right centering for the trigger 6, making its vertical movement more stable.

[0031] Furthermore, the top of the trigger 6 is the top of the push rod 602. The top of the push rod 602 has two sides with a slope greater than that of the first driving surface 303 and the second driving surface 304. This creates point contact between the top of the push rod 602 and the driving groove, reducing the contact area between the top of the push rod 602 and the driving groove, thus improving the smoothness of the sliding of the top of the trigger 6 along the driving groove. On the other hand, the driving groove has a certain thickness to ensure the strength and hardness of its contact with the push rod 602, making the driving groove less prone to damage and ensuring reliability and stability during long-term use.

[0032] In the above scheme, the safety door 3, the trigger 6, and the micro switch 5 are in a rigid contact relationship in sequence. After the safety door 3 is reset, the trigger 6 can be reset by the elastic force of the automatic rebound of the trigger end of the micro switch 5.

[0033] In another feasible embodiment, a reset spring can also be provided on the trigger end of the micro switch 5, with the two ends of the reset spring abutting between the micro switch 5 and the recess, so as to use the elastic force of the reset spring to help the trigger 6 to quickly reset.

[0034] A partition 102 is horizontally arranged inside the outer shell 1. The partition 102 is engaged above the limiting housing 201 and divides the inner cavity of the outer shell 1 into upper and lower layers. The safety door 3 is slidably arranged in the upper layer. The limiting housing 201 is provided with a guide groove 203 that allows the trigger 6 to slide vertically. The partition 102 has an opening 103 that communicates with the guide groove 203 and a second insertion hole 113 that matches the insertion hole 101. The opening 103 exposes the top of the trigger 6, and the second insertion hole 113 allows the plug to be inserted into the socket 202.

[0035] Furthermore, the bottom of the opening 103 has a downwardly extending lower extension arm 110 that is engaged within the guide groove 203. The left and right sides of the lower extension arm 110 are vertically provided with notches 104 that match the ends of the inclined section 6032. The ends of the inclined section 6032 are slidably engaged within the notches 104 to limit the vertical movement of the trigger 6 more smoothly, avoid deviation or tilting, and improve the smoothness and stability of the movement of the trigger 6.

[0036] like Figure 4 and Figure 8 As shown, a set of sockets 202 includes two 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 part 305 and a second part 306 from its middle portion to cover the two pairs of electrical sockets respectively. The first part 305 includes two first connecting holes 307, and a first driving slope 308 is provided on the side of the first connecting hole 307. The second part 306 includes two second connecting holes 309, and a second driving slope 310 is provided on the side of the second connecting hole 309. The first driving slope 308 and the second driving slope 310 are 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, allowing the translation of the safety door 3 in any direction to adapt to the anti-misinsertion requirements of a pair of electrical sockets, thus providing a safety protection function. In the preferred embodiment shown in the figure, the ferrule module is a five-hole ferrule including two-hole and three-hole ferrules. In other feasible embodiments, the ferrule module can also be two sets of two ferrules.

[0037] Furthermore, the partition 102 is provided with a first limiting block 111 and a second limiting block 112. The first limiting block 111 is located inside the outermost first connecting hole 307 and faces the first driving inclined surface 308 to limit the movement limit of the first part 305; the second limiting block 112 is located inside the outermost second connecting hole 309 and faces the second driving inclined surface 310 to limit the movement limit of the second part 306. The arrangement of the first limiting block 111 and the second limiting block 112 effectively limits the movement range of the safety door 3 to avoid unnecessary wear caused by excessive movement of the safety door 3.

[0038] The safety door 3 has a groove 301 in the middle, and the elastic element 4 is disposed in the groove 301. Two fixing blocks 105 are fixedly disposed opposite each other on the top surface of the partition 102, and the two ends of the elastic element 4 abut against the two fixing blocks 105 respectively. Preferably, the elastic element 4 is a spring, and the elastic element 4 is preferably disposed in the middle of the safety door 3 to make the safety door 3 move as smoothly as possible.

[0039] The outer casing 1 in this design includes a housing 106 and a cover 107. The cover 107 is detachably mounted on the housing 106, and a sealing ring 108 is embedded at the connection between the two. The top two sides of the partition 102 have baffles 109 extending upward into the cover 107. The safety door 3 has a slider 312 protruding from the middle of its two sides parallel to its direction of movement. The slider 312 is slidably engaged between the baffles 109 and the cover 107. The slider 312 is preferably a protrusion to limit the sliding while reducing the contact area between it and the baffles 109 and the cover 107, thus providing smooth movement of the safety door 3. The outer side of the cover 107 is provided with a buckle, and the outer side of the housing 106 is correspondingly provided with a locking block, and the cover 107 is engaged with the housing 106.

[0040] The top of the cover 107 may also have an annular groove along its edge to embed a sealing ring to seal the gap between the cover 107 and other components, so as to ensure the safe use of the socket.

[0041] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0042] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A discharge socket, characterized by: The utility model provides a safe plug, including shell (1), the plug core module, safe door subassembly, control subassembly and connecting circuit are built -in in shell (1), the plug core module includes the limiting casing (201) of setting in the bottom of shell (1) and a group of built -in plug sleeve (202) of limiting casing (201), the top of shell (1) is provided with the jack (101) matching with plug sleeve (202);Safe door subassembly includes safety door (3) and sets up the elastic part (4) on safety door (3), and safety door (3) is reciprocatingly arranged on the top of plug core module through the elasticity of elastic part (4) level, control subassembly includes micro -switch (5) and trigger (6) being built -in in limiting casing (201) vertically, and trigger (6) is vertically slidingly arranged on the top of micro -switch (5), and the trigger end of micro -switch (5) and the bottom of trigger (6) abut, the back of safety door (3) has the recessed drive recess, the drive recess has vertex (302) and first drive surface (303) and second drive surface (304) being separately arranged on the both sides of vertex (302) and extending downwardly, and the bottom of plug sleeve (202), micro -switch (5) is connected to the connecting circuit, and in the first state, safety door (3) is located at the initial position, the top of trigger (6) and vertex (302) abut, at this time, trigger (6) does not trigger micro -switch (5) and is not turned on, and the connecting circuit is not conducted in the second state, and the plug is inserted into the jack (101) and drives safety door (3) to be translated until being inserted into plug sleeve (202), and first drive surface (303) or second drive surface (304) drives trigger (6) to be triggered by the translation and triggers micro -switch (5), and the connecting circuit is conducted.

2. The electrical discharge socket of claim 1, wherein: The trigger (6) includes a connecting plate (601), a top rod (602), and a foot (603). The top rod (602) is vertically fixed to the center of the top surface of the connecting plate (601). Two feet (603) are symmetrically arranged on the left and right sides of the connecting plate (601). The foot (603) includes a vertical segment (6031) and an inclined segment (6032) connected to each other. Two vertical segments (6031) are vertically fixed to the left and right sides of the connecting plate (601), respectively, forming a recess in which the trigger end of the micro-switch (5) is located. The inclined segment (6032) extends upwardly from the bottom of the vertical segment (6031) and forms a V shape with the vertical segment (6031).

3. The electrical discharge socket of claim 2, wherein: The top of the trigger (6) is the top of the top rod (602). The slopes on both sides of the top of the top rod (602) have a larger slope than the first drive surface (303) and the second drive surface (304).

4. The electrical discharge socket of claim 3, wherein: The trigger end of the micro-switch (5) is sleeved with a return spring. The two ends of the return spring abut against the micro-switch (5) and the recess, respectively.

5. An electrical discharge socket according to claim 3 or 4, characterised in that: The outer shell (1) is horizontally provided with a partition plate (102), the partition plate (102) is clamped above the limiting shell (201) and divides the inner cavity of the outer shell (1) into two layers, the safety door (3) is slidingly arranged in the upper layer, the limiting shell (201) is provided with a guide sliding groove (203) allowing the trigger (6) to vertically slide, and the partition plate (102) is provided with an opening (103) communicating with the guide sliding groove (203) and a second jack (113) matched with the jack (101).

6. The electrical discharge socket of claim 5, wherein: The bottom of the opening (103) has a downward extending arm (110) clamped in the guide sliding groove (203), and the left and right sides of the downward extending arm (110) are vertically provided with notches (104) matched with the end of the inclined section (6032), and the end of the inclined section (6032) is slidingly clamped in the notches (104).

7. The electrical discharge socket of claim 6, wherein: A set of the plug sleeve (202) includes two pairs of live plug sleeves and one ground plug sleeve to form two-hole plug sleeves and three-hole plug sleeves, respectively, and the two pairs of live plug sleeves are oppositely arranged, the safety door (3) has a first part (305) and a second part (306) from the middle part, to shield the two pairs of live plug sleeves, respectively, the first part (305) includes two first connecting jacks (307), the side of the first connecting jack (307) is provided with a first driving slope (308), and the second part (306) includes two second connecting jacks (309), the side of the second connecting jack (309) is provided with a second driving slope (310).

8. The electrical discharge socket of claim 7, wherein: The partition plate (102) is provided with a first limiting block (111) and a second limiting block (112), the first limiting block (111) is located in the first connecting jack (307) at the most side and opposite to the first driving slope (308), to limit the movement limit of the first part (305); and the second limiting block (112) is located in the second connecting jack (309) at the most side and opposite to the second driving slope (310), to limit the movement limit of the second part (306).

9. The electrical discharge socket of claim 8, wherein: The middle part of the safety door (3) is provided with a groove (301), the elastic member (4) is arranged in the groove (301), and the top surface of the partition plate (102) is oppositely provided with two fixed blocks (105), and the two ends of the elastic member (4) are respectively abutted with the two fixed blocks (105).

10. The electrical discharge socket of claim 9, wherein: The outer shell (1) includes a shell (106) and a cover (107), the cover (107) is detachably covered on the shell (106), and a sealing ring (108) is embedded at the connection between the shell (106) and the cover (107), the top sides of the partition plate (102) have a baffle (109) extending upward into the cover (107), and the middle of the two sides of the safety door (3) parallel to the moving direction protrudes a sliding block (312), and the sliding block (312) is slidingly clamped between the baffle (109) and the cover (107).

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