High-low voltage shunt type vehicle-mounted power socket

Abstract

The utility model relates to the technical field of automobile parts, in particular to a high-low voltage shunt type vehicle-mounted power socket, which comprises a panel, a mounting seat and a socket assembly, the panel is mounted at the top end of the mounting seat, the socket assembly is mounted in the mounting seat, and the socket assembly comprises a circuit board, an insertion sheet assembly, a protection assembly and a microswitch. The protection assembly comprises an installation plate, a first sliding block, a second sliding block and a spring, and the first sliding block and the second sliding block abut against the microswitch respectively to achieve switching of a high-voltage connection circuit and a low-voltage connection circuit, and the high-voltage connection circuit and the low-voltage connection circuit can be accurately switched through interaction of the sliding blocks and the microswitch. Mutual interference possibly generated between a high-voltage circuit and a low-voltage circuit is effectively avoided, the probability of occurrence of serious safety problems such as short circuit and overvoltage is greatly reduced, and safety and stability of an electricity utilization environment in a vehicle are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, specifically relates to a high low voltage shunt type vehicle-mounted power socket. BACKGROUND

[0002] With the rapid development of science and technology, the automobile is no longer a simple means of transportation. The automobile electrical system goes from simple to complex, and early only for lighting, ignition services, today's navigation, car recorders, all kinds of comfortable and safe equipment emerge in an endless stream. At the same time, people's dependence on electronic equipment deepens, mobile phones, tablets, laptops all need to be charged when driving, and their voltage, power requirements are different. The rise of new energy vehicles brings new changes, its high-voltage electrical system is complex, with battery management, motor drive and other high-voltage requirements, and also needs to consider the low-voltage interface for passengers to use electronic devices, with strict requirements on charging efficiency and safety. With the vigorous development of the automobile industry and people's travel demand, the traditional single-voltage vehicle-mounted power socket has been difficult to meet the increasingly diversified in-vehicle power demand.

[0003] The utility model discloses a five-hole vehicle socket in the utility model discloses a five-hole vehicle socket, including mutually matched upper shell and lower shell, be provided with circuit board and the plug blade connected with the circuit board in the lower shell, the plug blade constitutes the plug hole for five-hole type, be provided with press buffer assembly in the plug blade. The utility model at least embodies the following effects: the press buffer assembly is added, ensures that after the plug of the electric equipment is inserted, AC output can be obtained, the risk of electric shock is effectively avoided, and the electric arc is also eliminated. The buffer trigger has a spring telescopic structure and can be compatible with power plugs of different lengths. NTC can effectively monitor the temperature inside the socket, and immediately shut down the inverter or OBC when the temperature exceeds the specified temperature, thereby improving the use safety of the socket. At the same time, the high-voltage and low-voltage connectors can supply power to the high-voltage and low-voltage in the socket separately, without interfering with each other, thereby avoiding the secondary damage of AC high-voltage leakage to the low-voltage system.

[0004] However, the existing technical solution still has the following technical problems:

[0005] In the traditional vehicle socket technology, the high-voltage circuit and the low-voltage circuit are not effectively separated, when different voltage devices are connected at the same time or circuit failure occurs, safety problems such as short circuit and overvoltage damage to equipment may be caused due to voltage interference. Secondly, the connector is used to connect the socket with the vehicle power supply, and the cost of the connector is high, which not only increases the production cost of the vehicle socket, but also increases the manufacturing cost of the whole vehicle. At the same time, the connector may have problems such as poor contact during long-term use, which further affects the performance and reliability of the vehicle socket. In addition, due to the existence of the connector, the complexity of the whole circuit system increases, which brings certain difficulties to the later maintenance and fault diagnosis.

[0006] In order to solve the above problems, it is urgent to provide a vehicle-mounted power plug which can effectively shunt high-voltage circuit and low-voltage circuit, abandon high-cost connector, and guarantee safe and stable power supply and compatibility with various devices. The utility model discloses a high-low voltage shunt type vehicle-mounted power socket

[0007] In view of the existing technical problems, the utility model aims at providing a high-low voltage shunt type vehicle-mounted power socket, which can realize effective shunting and safety guarantee of high-voltage circuit and low-voltage circuit by setting a protection device and a micro switch, avoid mutual interference and safety problems, and make the insertion of the plug and the interference of the slider and the micro switch more stable by setting a slope and an inclined surface. The guide rail and the sliding groove guide the sliding component, and the limiting block limits the slider, so as to guarantee the stable structure and accurate triggering of the micro switch. The device has the advantages of reasonable structure, convenient operation and the like.

[0008] To achieve the above object, the utility model provides the following technical scheme:

[0009] A high-low voltage shunt type vehicle-mounted power socket comprises:

[0010] A panel, a mounting seat and a socket assembly;

[0011] The panel is mounted at the top end of the mounting seat, and the socket assembly is mounted in the mounting seat;

[0012] The socket assembly comprises a circuit board, a plug assembly, a protection assembly and a micro switch, the plug assembly and the micro switch are mounted on the circuit board, and the protection assembly is arranged above the plug assembly and the micro switch;

[0013] The protection assembly comprises a mounting plate, a first slider, a second slider and a spring, the first slider and the second slider are slidingly arranged on the mounting plate, the first slider is connected with the second slider through the spring, and the first slider and the second slider respectively interfere with the micro switch to realize switching of the high-low voltage connection circuit.

[0014] As an improvement, a slope is arranged on the top plane of the first slider and the second slider, the slope is arranged from high to low along the moving direction of the first slider and the second slider, and a clamping groove corresponding to the grounding wire of the triangular plug is formed in the first slider.

[0015] As an improvement, a guide rail is arranged at the bottom of the panel, the guide rail is provided in two groups, a sliding groove corresponding to the guide rail is arranged at the top of the first slider and the second slider, and the first slider and the second slider slide back and forth along the arrangement direction of the guide rail.

[0016] As improvement, the panel bottom is further provided with a limiting block, the limiting block is arranged in abutment with the first slider, and the limiting block limits the distance between the first slider and the second slider.

[0017] As improvement, the first slider is provided with a first fixing block arranged in abutment with the micro switch, the second slider is provided with a second fixing block arranged in abutment with the micro switch, and the bottom surface of the first fixing block and the second fixing block is provided with an inclined surface arranged from low to high along the moving direction of the first fixing block and the second fixing block.

[0018] As improvement, the second slider is provided with a limiting groove on the side in abutment with the first slider, and the limiting groove is shaped with the first fixing block.

[0019] As improvement, the spring is arranged at both ends of the first slider and the second slider, and the both ends of the spring are arranged in abutment with the first slider and the second slider respectively.

[0020] As improvement, the panel is provided with a two-hole type socket for connecting a low-voltage plug and a three-hole type socket for connecting a high-voltage plug, and is further provided with a recess for accommodating an indicator lamp, the indicator lamp is connected with the circuit board, the mounting plate is provided with a socket corresponding to the two-hole type socket and the three-hole type socket, and is further provided with a mounting groove for accommodating the micro switch.

[0021] As improvement, the plug assembly comprises a plurality of plug groups, the plugs are arranged corresponding to the two-hole type socket and the three-hole type socket, and the plugs are connected with the micro switch.

[0022] As improvement, the circuit board is connected with a low-voltage wire harness assembly and a high-voltage wire harness through a terminal post, the low-voltage wire harness assembly comprises a connecting wire and a low-voltage connector, the low-voltage connector is connected with a vehicle-mounted power supply, and the connecting wire connects the vehicle-mounted power supply and the circuit board.

[0023] The utility model discloses a beneficial effect lies in:

[0024] (1) the utility model discloses a carefully designed protection assembly, and the safety shunt of high and low voltage circuit is realized ingeniously, and the first slider, the second slider and the micro switch in the protection assembly work cooperatively, play a key role in the circuit connection process, when the plug is inserted or pulled out, the interaction of the slider and the micro switch can accurately switch the high and low voltage connection circuit, thereby isolating the high voltage circuit and the low voltage circuit, this shunt mechanism effectively avoids the mutual interference between the high and low voltage circuit, greatly reduces the probability of occurrence of serious safety problems such as short circuit and overvoltage, and guarantees the safety and stability of the electrical environment in the vehicle.

[0025] (2) In the connection design of the plug and the socket, the convenience of use of the user is fully considered, the first slider and the second slider top plane are provided with inclined surfaces, the inclined surfaces conform to the natural direction of the plug insertion, when the user inserts the plug into the socket, the plug contacts the inclined surface, the plug pushes the sliding of the slider, reduces the resistance in the insertion process, makes the plug insertion operation more smooth and natural, without excessive force or repeated adjustment of angle, brings the user convenient use feeling, for the triangular plug, the clamping groove specially opened on the first slider is perfectly matched with the ground wire of the triangular plug, when the plug is inserted, the ground wire can be accurately inserted into the clamping groove, fixes the first slider and pushes the second slider, the accurate design ensures the good grounding of the plug, not only enhances the stability of the electrical equipment, but also further improves the overall stability of the plug and socket connection, effectively prevents the electrical problems caused by poor grounding, and provides safety for safe use of electricity;

[0026] (3) In order to ensure the stability of the internal structure of the socket in long-term use, the utility model sets two guide rails at the bottom of the panel, which correspond to the sliding groove at the top of the first slider and the second slider, the cooperation of the guide rail and the sliding groove provides accurate guidance for the sliding of the slider, when the plug is inserted and pulled out to cause the slider to move, the slider can stably and accurately slide along the direction of the guide rail, so as to ensure that the micro switch can be accurately triggered, the accurate triggering mechanism is crucial for the correct switching of high and low voltage circuits, ensures the normal operation of the entire circuit system, avoids the circuit connection error caused by the deviation of the slider movement;

[0027] (4) The utility model fully considers the diversified power demand under the vehicle-mounted environment in the functional design, two-hole jack for connecting low-voltage plug and three-hole jack for connecting high-voltage plug are arranged on the panel, this design can be compatible with various electrical equipment, at the same time, the panel is also provided with a recess for accommodating the indicating lamp, the indicating lamp is connected with the circuit board, through the on-off of the indicating lamp, the user can intuitively understand the working state of the socket, including whether the power is on, the connection state of high and low voltage circuits, etc., which is convenient for the user to master the socket information in time during use, improves the convenience and safety of use;

[0028] (5) The utility model discloses a limiting block is set up at the bottom of the panel and the spring is set up at the both ends of the first slider and the second slider, and the limiting block limits the distance between the first slider and the second slider, so that the spring can play the stable role in the moving process of the slider, when the plug is inserted or pulled out, the slider can move flexibly in a certain range under the elastic action of the spring, and simultaneously, the elastic force of the spring can ensure that the slider keeps in the stable initial position when not being subjected to external force, and in the circuit switching process, the elasticity of the spring is helpful to the stable interaction between the slider and the microswitch, and the spring design guarantees the stable movement and accurate reset of the slider in the normal use process, thereby guaranteeing the reliability and durability of the circuit switching function of the whole high-low voltage shunt type vehicle-mounted power socket.

[0029] (6) The utility model discloses the way of binding post is connected high voltage line, and it can effectively reduce the problem such as the increase of resistance and heating caused by bad contact, ensure the stability and safety of high voltage transmission, reduce the electrical failure risk caused by connection problem, and the structure of binding post is relatively simple, and the installation and dismounting process is relatively convenient, which not only is favorable to improving the assembly efficiency and reducing the production cost in the production process, but also can more conveniently carry out the connection or disconnection operation of high voltage line in the subsequent maintenance and overhaul, and is convenient to check and maintain relevant parts.

[0030] In conclusion, the utility model has the advantages of high-low voltage circuit safety shunt, convenient plug use, stable and durable structure, function satisfies the various power demand and circuit switching stable and durable, especially suitable for automobile parts technical field. ACCURACY

[0031] Figure 1 It is the utility model vehicle-mounted socket three-dimensional structure schematic diagram Figure 1 ;

[0032] Figure 2 It is the utility model vehicle-mounted socket three-dimensional structure schematic diagram Figure 2 ;

[0033] Figure 3 It is the utility model vehicle-mounted socket three-dimensional structure schematic diagram Figure 3 ;

[0034] Figure 4 It is the utility model panel bottom structure schematic drawing;

[0035] Figure 5 It is the utility model panel and protection component combination structure schematic drawing;

[0036] Figure 6 It is the utility model protection component three-dimensional structure schematic diagram;

[0037] Figure 7It is the first slider three-dimensional structure schematic view of the utility model;

[0038] Figure 8 It is the second slider three-dimensional structure schematic view of the utility model;

[0039] Figure 9 It is the installation seat internal structure schematic view of the utility model Figure 1 ;

[0040] Figure 10 It is the installation seat internal structure schematic view of the utility model Figure 2 ;

[0041] Figure 11 It is the installation seat internal structure schematic view of the utility model Figure 3 ;

[0042] Figure 12 It is the vehicle-mounted socket principle view of the utility model. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0044] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0045] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0046] Embodiment:

[0047] As Figures 1-12As shown, a high and low voltage shunt type vehicle-mounted power socket, comprising:

[0048] The panel 1, the mounting seat 2 and the socket assembly 3;

[0049] The panel 1 is mounted on the top end of the mounting seat 2, the socket assembly 3 is mounted in the mounting seat 2, and the bottom of the panel 1 is provided with a mounting portion extending towards the mounting seat 2, and a mounting groove is formed in the mounting portion, and a protrusion is arranged on the mounting seat 2 corresponding to the mounting groove, and the mounting groove and the protrusion are arranged in a clamping manner;

[0050] The socket assembly 3 comprises a circuit board 31, a plug assembly 32, a protection assembly 33 and a micro switch 34, the plug assembly 32 and the micro switch 34 are mounted on the circuit board 31, and the protection assembly 33 is arranged above the plug assembly 32 and the micro switch 34;

[0051] The protection assembly 33 comprises a mounting plate 331, a first sliding block 332, a second sliding block 333 and a spring 334, the first sliding block 332 and the second sliding block 333 are slidingly arranged on the mounting plate 331, the first sliding block 332 and the second sliding block 333 are connected by the spring 334, and the first sliding block 332 and the second sliding block 333 respectively abut against the micro switch 34 to realize switching of the high and low voltage connection circuit.

[0052] It should be noted that the top plane of the first sliding block 332 and the second sliding block 333 is provided with a slope 3321, the slope 3321 is arranged from high to low along the moving direction of the first sliding block 332 and the second sliding block 333, when the plug is inserted into the socket, the insertion action of the plug will generate an oblique force on the sliding block along the slope 3321, so that the sliding block can slide more smoothly on the mounting plate 331, reducing the resistance in the insertion process, and at the same time ensuring that the sliding direction of the sliding block is consistent with the expected requirement, the first sliding block 332 is provided with a clamping groove 3322 corresponding to the insertion of the ground wire of the three-pin plug, when the three-pin plug is inserted, the plug blade corresponding to the ground wire is inserted into the clamping groove 3322, and the plug blades corresponding to the live wire and the neutral wire push the second sliding block 333 to slide.

[0053] The panel 1 bottom is provided with guide rails 11, which provide accurate guidance for the sliding of the sliding blocks, the guide rails 11 are provided with two groups, the design of the double guide rails greatly improves the stability and accuracy of the sliding of the sliding blocks, the first sliding block 332 and the second sliding block 333 are provided with sliding grooves 3323 on the top corresponding to the guide rails 11, the first sliding block 332 and the second sliding block 333 slide back and forth along the setting direction of the guide rails 11, in this way, the sliding blocks can accurately respond to the insertion and extraction actions of the plug, when the plug is inserted, the sliding blocks slide smoothly along the guide rails 11 under the push of the plug tab, triggering the corresponding micro switch 34 to realize the switching of the circuit, and when the plug is pulled out, the sliding blocks can reset along the guide rails 11 under the action of the spring 334, preparing for the next use, the whole process is smooth and reliable, ensuring the normal realization of the function of the socket.

[0054] It should be noted that the panel 1 bottom is also provided with a limiting block 12, the limiting block 12 is in contact with the first sliding block 332, the second sliding block 333 is in contact with the mounting portion of the panel 1 bottom, the limiting block 12 limits the distance between the first sliding block 332 and the second sliding block 333, which not only ensures that the spring 334 is always in a reasonable compression and extension state during operation, avoiding the loss of elasticity or excessive deformation of the spring due to too large or too small distance, but also ensures that the triggering time and force of the micro switch 34 are just right by accurately controlling the distance between the two sliding blocks, in this way, the socket can realize stable and reliable high-low voltage connection circuit switching under any use condition, providing a solid guarantee for the user's electrical safety.

[0055] Further, the first sliding block 332 is provided with a first fixed block 3324 in contact with the micro switch 34, the second sliding block 333 is provided with a second fixed block 3331 in contact with the micro switch 34, the bottom surface of the first fixed block 3324 and the second fixed block 3331 is provided with an inclined surface 33241, the inclined surface 33241 is provided from low to high along the moving direction of the first fixed block 3324 and the second fixed block 3331, when the plug is inserted, the inclined surface 33241 will gradually approach the triggering point of the micro switch 34 with the movement of the sliding block, due to the angle design of the inclined surface 33241, an increasing force will be generated during the contact process, this gradual triggering method makes the triggering of the micro switch 34 more stable and accurate, avoiding the damage or false triggering of the micro switch 34 caused by sudden and forceful impact, thereby ensuring the reliability and stability of the high-low voltage connection circuit switching.

[0056] In addition, the second slider 333 is provided with a limiting groove 3332 on the side opposite to the first slider 332, the limiting groove 3332 is shaped with the first fixed block 3324, when the three-pin plug is inserted, the second slider 333 slides along the guide rail 11 to the first slider 332, the limiting groove 3332 on the second slider 333 is sleeved on the first fixed block 3324, preventing the abnormal circuit switching or structural damage caused by the movement of the slider, on the other hand, the limiting groove 3332 and the first fixed block 3324 can play a guiding and positioning role, ensuring the relative position of the two sliders is accurate and avoiding misalignment or deviation, thereby ensuring the working stability of the entire protection assembly 33.

[0057] Further, the spring 334 is arranged at both ends of the first slider 332 and the second slider 333, which layout enables the spring 334 to uniformly apply force to the first slider 332 and the second slider 333, the two ends of the spring 334 are arranged opposite to the first slider 332 and the second slider 333 respectively, the material of the spring 334 has good elasticity and toughness, which can maintain stable performance in the long-term compression and expansion process, when the slider moves under external force, the spring 334 will be compressed accordingly and store elastic potential energy, during the dynamic process of plug insertion or extraction, the spring 334 maintains the relative position relationship between the first slider 332 and the second slider 333 through its own elastic change, ensuring that the movement of the two meets the design requirements, when the plug is pulled out, the spring 334 can restore the slider to the initial position, preparing for the next use, at the same time, it also ensures the normal reset of the micro switch 34, thereby protecting the normal function and safety of the socket circuit.

[0058] The panel 1 is provided with a two-hole socket 13 for connecting a low-voltage plug and a three-hole socket 14 for connecting a high-voltage plug, and a recess 15 for accommodating an indicator lamp 311 is also provided on the panel 1, the indicator lamp 311 is connected with the circuit board 31, and the indicator lamp 311 serves as an intuitive display of the socket state, providing important information feedback to the user, when the socket is normally powered, the indicator lamp 311 is on, conveying a signal to the user that the socket is in working state, when the socket fails or is powered off, the indicator lamp 311 is off, reminding the user to check and handle the problem in time.

[0059] The mounting plate 331 is provided with a slot 3311 corresponding to the two-hole socket 13 and the three-hole socket 14, the slot 3311 can provide accurate guidance and support for the plug blades, when the plug is inserted into the socket, the blades will pass through the slot 3311 and contact the blade assembly 32 inside the socket assembly 3, realizing the connection of the circuit, the inner wall of the slot 3311 is smooth and flat, which can reduce the friction between the blades and the slot and improve the smoothness of insertion and extraction.

[0060] The mounting plate 331 is also provided with a mounting groove 3312 for accommodating the micro switch 34. The micro switch 34 is provided with a safe and stable mounting position, and the size of the mounting groove 3312 matches the size of the micro switch 34. The micro switch 34 can be firmly mounted on the mounting plate 331 and will not be loosened or displaced due to external force impact or vibration. The depth of the mounting plate 331 is also reasonably designed, so that the trigger part of the micro switch 34 can accurately contact the fixed block on the slider, realizing the switching function of the high and low voltage connection circuit.

[0061] Furthermore, the plug assembly 32 includes a plurality of plug groups 321. The plug 321 is a key component for realizing power transmission. The plug 321 is correspondingly arranged with the two-hole jack 13 and the three-hole jack 14. For the two-hole jack 13, the corresponding plug 321 is responsible for transmitting the current of the live wire and the zero wire. For the three-hole jack 14, the plug 321 corresponds to the ground wire, the live wire and the zero wire respectively, providing comprehensive power connection and ground protection for electrical equipment.

[0062] The plug 321 is connected with the micro switch 34. This connection mode enables the plug 321 to realize the on-off of the circuit under the control of the micro switch 34. The connection between the plug 321 and the circuit board 31 adopts reliable welding or plug-in mode, ensuring smooth transmission of current between the two.

[0063] It should be noted that the circuit board 31 is connected with the low-voltage wire harness assembly 4 and the high-voltage wire harness 5 through the terminal post. The low-voltage wire harness assembly 4 is connected with the vehicle-mounted power supply, and the high-voltage wire harness 5 is directly connected with the high-voltage power supply. The terminal post is firm and durable, ensuring stable transmission and distribution of power, and can withstand a certain tensile force and torsional force, ensuring firm and reliable connection between the wire harness and the circuit board.

[0064] The low-voltage wire harness assembly 4 includes a connecting line 41 and a low-voltage connector 42. The low-voltage connector 42 is connected with the vehicle-mounted power supply, and the connecting line 41 is connected with the vehicle-mounted power supply and the circuit board 31. The design of the low-voltage connector 42 fully considers the compatibility and reliability with the vehicle-mounted power supply, and can be quickly and firmly connected with the vehicle-mounted power supply interface. The low-voltage connector 42 is provided with a plurality of connection grooves, and the low-voltage connector 42 is connected with the vehicle-mounted power supply through the connection grooves.

[0065] Working process: first high voltage wire harness and low voltage wire harness assembly are connected to the power supply respectively, then the plug is inserted into the socket, the socket plug pushes the first slider 332 or the second slider 333, the power plug is connected with the plug, at this time the first fixed block on the first slider 332 or the second fixed block on the second slider 333 is in contact with the micro switch, so that the low voltage circuit or the high voltage circuit is connected, when the triangular plug is inserted, the ground wire corresponding power plug is inserted into the first slider 332, the first slider 332 is fixed, the second slider 333 slides to the first slider 332, the limiting groove on the second slider 333 is in contact with the first fixed block, the second fixed block is in contact with the micro switch, the circuit board receives the indication, the high voltage circuit is connected, the first fixed block is in contact with the micro switch, the low voltage circuit is connected, after the socket is pulled out, through the elasticity of the spring, the first slider 332 and the second slider 333 return to the original position.

[0066] The above merely describes the preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-low voltage split type vehicle power socket, characterized in that, Include: Panel (1), mounting seat (2) and socket assembly (3); The panel (1) is installed at the top end of the mounting seat (2), and the socket assembly (3) is installed in the mounting seat (2); The socket assembly (3) includes a circuit board (31), a plug assembly (32), a protection assembly (33) and a micro switch (34), the plug assembly (32) and the micro switch (34) are installed on the circuit board (31), and the protection assembly (33) is arranged above the plug assembly (32) and the micro switch (34); The protection assembly (33) includes a mounting plate (331), a first sliding block (332), a second sliding block (333) and a spring (334), the first sliding block (332) and the second sliding block (333) are slidingly arranged on the mounting plate (331), the first sliding block (332) and the second sliding block (333) are connected by the spring (334), and the first sliding block (332) and the second sliding block (333) are respectively in contact with the micro switch (34) to realize the switching of the high-low voltage connection circuit.

2. The high-low voltage shunt type vehicle-mounted power socket according to claim 1, wherein: The top plane of the first sliding block (332) and the second sliding block (333) is provided with an inclined surface (3321), the inclined surface (3321) is arranged from high to low along the moving direction of the first sliding block (332) and the second sliding block (333), and the first sliding block (332) is provided with a clamping groove (3322) corresponding to the grounding of the triangular plug.

3. The high-low voltage shunt type vehicle-mounted power socket according to claim 1, wherein: The bottom of the panel (1) is provided with guide rails (11), the guide rails (11) are provided with two groups, the top of the first sliding block (332) and the second sliding block (333) is provided with a sliding groove (3323) corresponding to the guide rails (11), and the first sliding block (332) and the second sliding block (333) slide back and forth along the arrangement direction of the guide rails (11).

4. The high-low voltage shunt type vehicle-mounted power socket according to claim 1, wherein: The bottom of the panel (1) is further provided with a limiting block (12), the limiting block (12) is in contact with the first sliding block (332), and the limiting block (12) limits the distance between the first sliding block (332) and the second sliding block (333).

5. The high-low voltage shunt type vehicle-mounted power socket according to claim 1, wherein: The first slider (332) is provided with a first fixed block (3324) arranged to abut against the micro switch (34), and the second slider (333) is provided with a second fixed block (3331) arranged to abut against the micro switch (34), and the bottom surface of the first fixed block (3324) and the second fixed block (3331) is provided with an inclined surface (33241), and the inclined surface (33241) is arranged from low to high along the moving direction of the first fixed block (3324) and the second fixed block (3331).

6. The high-low voltage shunt type vehicle-mounted power socket according to claim 5, characterized in that: The second slider (333) is provided with a limiting groove (3332) on the side abutting against the first slider (332), and the limiting groove (3332) is shaped with the first fixed block (3324).

7. The high-low voltage shunt type vehicle-mounted power socket according to claim 1, characterized in that: The spring (334) is arranged at both ends of the first slider (332) and the second slider (333), and the two ends of the spring (334) are arranged to abut against the first slider (332) and the second slider (333) respectively.

8. The high-low voltage shunt type vehicle-mounted power socket according to claim 1, characterized in that: The panel (1) is provided with a two-hole type socket (13) connected with a low-voltage plug and a three-hole type socket (14) connected with a high-voltage plug, and the panel (1) is further provided with a recess (15) accommodating an indicating lamp (311), and the indicating lamp (311) is connected with the circuit board (31), and the mounting plate (331) is provided with a slot (3311) corresponding to the two-hole type socket (13) and the three-hole type socket (14), and the mounting plate (331) is further provided with a mounting groove (3312) accommodating the micro switch (34).

9. The high-low voltage shunt type vehicle-mounted power socket according to claim 8, characterized in that: The insert piece assembly (32) includes a plurality of groups of insert pieces (321), and the insert pieces (321) are arranged corresponding to the two-hole type socket (13) and the three-hole type socket (14), and the insert pieces (321) are connected with the micro switch (34).

10. The high-low voltage shunt type vehicle-mounted power socket according to claim 1, characterized in that: The circuit board (31) is connected with a low-voltage wire harness assembly (4) and a high-voltage wire harness (5) through a terminal post, the low-voltage wire harness assembly (4) includes a connecting wire (41) and a low-voltage connector (42), the low-voltage connector (42) is connected with a vehicle-mounted power supply, and the connecting wire (41) is connected with the vehicle-mounted power supply and the circuit board (31).

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