A power terminal assembly and a DC power connector

Abstract

The present invention discloses a power terminal assembly and a DC power connector, and relates to the technical field of DC power connectors. A DC power connector includes a connector body for connecting to a connection port for transmission, and also includes an anti-detachment assembly arranged between the connector body and the connection port for preventing detachment after connection. The connector body is provided with two groups of pushing assemblies for ensuring good contact during the connection and use of the connector body. In the process of plugging and connecting the connector body and the connection port, the power terminal is squeezed and pushed by the mutual cooperation of the pushing assembly and the transmission assembly to maintain the abutting connection between the power terminal and the copper busbar, thereby avoiding the unstable connection between the power terminal and the copper busbar caused by the reduced toughness of the power terminal itself and the poor reset effect, and facilitating the stable operation and use of the DC power connector.

Description

Technical Field

[0001] The present invention relates to the technical field of direct current power connectors, in particular to a power terminal assembly and a direct current power connector. Background Art

[0002] A DC power connector is an electrical connector used to provide DC power, and there are more standard types of DC connectors than domestic AC power plugs and sockets, which are not interchangeable. The size and arrangement of DC connectors can be selected to prevent the accidental interconnection of incompatible power sources and loads. Types vary, from small coaxial connectors used to power portable electronic devices from AC adapters, to connectors for battery packs in automotive accessories and portable devices.

[0003] When the DC power connector is installed and connected to the connection port, in order to improve the stability of the connection transmission, the power terminal on the DC power connector has a certain material toughness to ensure the effective connection with the copper bus inside the connection port during plug-in installation. However, with the long-term plug-in and pull-out operation of the DC power connector, the toughness of the power terminal itself is reduced, and the reset effect is poor, which reduces the stability of the DC power connector after being connected to the connection port, making it inconvenient for the stable operation of the DC power connector. To this end, we propose a power terminal assembly and a DC power connector. Summary of the invention

[0004] The object of the present invention is to provide a power terminal assembly and a DC power connector to solve the problem of unstable transmission of the DC power connector, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a DC power connector, comprising a connector body for connecting to a connection port for transmission, and also comprising an anti-detachment component arranged between the connector body and the connection port for preventing detachment after connection, and the connector body is provided with two groups of pushing components for ensuring good contact during the connection and use of the connector body.

[0006] Preferably, the pushing assembly comprises two L-shaped tubes mounted on the connector body, the two L-shaped tubes are connected to each other on one side thereof and are provided with mounting tubes, the mounting tubes are connected to push rods via connecting assemblies, and the connector body is provided with a transmission assembly for transmitting the push rods;

[0007] The connecting assembly includes a plurality of connecting blocks fixed on the inner wall of the mounting tube, each of the connecting blocks is slidably connected with a first T-shaped rod, one end of the first T-shaped rod is fixed to the push rod, and a first spring is sleeved on the outer side of each of the first T-shaped rods.

[0008] Preferably, the transmission assembly includes a connecting tube installed on the connector body, one end of the L-shaped tube is connected to the connecting tube, and the first delivery tube and the second delivery tube are installed at both ends of the connecting tube, and an operation box is installed at the opposite end of the first delivery tube and the second delivery tube, and a partition is slidably connected to the interior of the operation box, and the interior of the operation box forms a first operating chamber and a second operating chamber under the dividing action of the partition, the first delivery tube and the second delivery tube are connected to the first operating chamber, and the interior of the L-shaped tube, the connecting tube, the first delivery tube, the second delivery tube and the first operating chamber are filled with liquid, and the operation box is provided with a driving assembly for driving the partition and a guide assembly for guiding during the driving process.

[0009] Preferably, the driving assembly includes a threaded tube slidably connected to the operating box, one end of the threaded tube is located inside the operating box and fixed to the partition, a first L-shaped frame is fixed to the outside of the operating box, a threaded rod is rotatably connected to the first L-shaped frame, one end of the threaded rod is meshed with the threaded tube, and a driving pin for driving the threaded rod is fixed to one end of the threaded rod.

[0010] Preferably, the guide assembly includes a sleeve slidably connected to the operating box, one end of the sleeve is located inside the operating box and fixed to the partition, a second L-shaped frame is fixed to the outside of the operating box, a sliding rod is fixed on the second L-shaped frame, and the sliding rod is slidably connected to the sleeve.

[0011] Preferably, a plurality of heat dissipation strips are arranged on the outside of the operation box, and a circulation component for liquid circulation inside the L-shaped pipe, the connecting pipe, the first delivery pipe, the second delivery pipe and the first operation chamber is arranged on the first delivery pipe.

[0012] Preferably, the circulation component includes two one-way valves installed on the first delivery pipe, and the conduction directions of the two one-way valves are consistent. A piston tube is installed on the first delivery pipe, and the piston tube is located between the two one-way valves. A piston rod is slidably connected to the piston tube, and a T-block is fixed at one end of the piston rod. A reset component is provided on the first delivery pipe for resetting the piston rod after squeezing.

[0013] Preferably, the reset assembly includes two second T-shaped rods slidably connected to the T-shaped block, one end of the two second T-shaped rods is fixed to the outer side of the first conveying pipe, a baffle is fixed to the outer side of the two second T-shaped rods, a second spring is sleeved on the outer side of the second T-shaped rod, and both ends of the second spring are respectively set to resist the baffle and the T-shaped block.

[0014] Preferably, the anti-detachment component includes a pressure plate installed on the upper end of the connector body, a limit block is fixed on the upper end of the pressure plate, a stop block for blocking and limiting the position with the limit block is fixed on the inner side of the connecting port, and the limit block is provided with an inclined surface for abutting against the stop block.

[0015] Preferably, the power terminal assembly includes a power terminal, the connector body consists of a plastic body and two groups of cables, the power terminals are provided in two groups and installed on the plastic body, and the two groups of power terminals are respectively arranged in one-to-one correspondence with the two groups of pushing components, the head of the power terminal is provided with two groups of ends, and the ends adopt a five-contact structure, the two groups of ends are located between the two L-shaped tubes on the pushing assembly, and the push rod is against the end of the power terminal, and a copper busbar for contacting the end of the power terminal is provided inside the connecting port, the two groups of cables are arranged in one-to-one correspondence with the power terminals, and the cables and the power terminals are connected by crimping and a heat shrink sleeve is sleeved on the crimping connection, a plastic rear plug is embedded and installed at the tail of the plastic body, and the heat shrink sleeve is sleeved on the plastic rear plug, and plastic front plugs for positioning the power terminals are provided on both sides of the plastic body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the process of plugging and connecting the connector body and the connection port, the power terminal is squeezed and pushed by the cooperation of the pushing assembly and the transmission assembly to maintain the abutting connection between the power terminal and the copper busbar, thereby avoiding unstable connection between the power terminal and the copper busbar caused by reduced toughness and poor resetting effect of the power terminal itself, and facilitating stable operation and use of the DC power connector.

[0018] 2. With the power terminal assembly and the DC power connector of the present invention, after the connector body is plugged and connected with the connection port, the heat dissipation strip and the circulation assembly cooperate with each other, so that the liquid inside the L-shaped tube, the connection tube, the first delivery tube, the second delivery tube and the first operating cavity are squeezed and circulated. Through the circulation of the liquid, the heat dissipation at the connection between the connector body and the connection port is easily brought out, thereby improving the heat dissipation effect of the DC power connector during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the connection port structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the anti-slip assembly of the present invention;

[0022] Figure 4It is a schematic diagram of the structure of the driving component of the present invention;

[0023] Figure 5 It is a schematic diagram of the transmission assembly structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the connection assembly of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the circulation component and the reset component of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the driving assembly and the guide assembly of the present invention;

[0027] Fig. 9 It is a schematic diagram of the connector structure of the present invention.

[0028] In the figure: 1-connector body; 101-plastic body; 102-power terminal; 103-cable; 104-heat shrink tubing; 105-plastic rear plug; 106-plastic front plug; 2-connector port; 201-copper busbar; 301-pressing plate; 302-limiting block; 303-stopper; 401-L-shaped tube; 402-installation tube; 403-push rod; 501-connecting block; 502-first T-shaped rod; 503-first spring; 601-connecting tube; 602-first delivery tube; 603-first Two conveying pipes; 604-operating box; 604a-first operating chamber; 604b-second operating chamber; 605-partition; 701-threaded pipe; 702-first L-shaped frame; 703-threaded rod; 704-driving pin; 801-sleeve; 802-second L-shaped frame; 803-sliding rod; 9-heat dissipation strip; 1001-one-way valve; 1002-piston tube; 1003-piston rod; 1004-T-block; 1101-second T-rod; 1102-baffle; 1103-second spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1-Figure 9, a DC power connector shown in the figure includes a connector body 1 for connecting to a connection port 2 for transmission, and also includes an anti-detachment component arranged between the connector body 1 and the connection port 2 for preventing detachment after connection, and the connector body 1 is provided with two sets of pushing components for ensuring good contact during the connection and use of the connector body 1;

[0032] It should be noted here that: during the process of plugging and connecting the connector body 1 and the connection port 2, the power terminal 102 is squeezed and pushed by the cooperation between the pushing component and the transmission component, so as to maintain the abutting connection between the power terminal 102 and the copper bus 201, thereby avoiding the unstable connection between the power terminal 102 and the copper bus 201 caused by the reduced toughness of the power terminal 102 itself and the poor reset effect, so as to facilitate the stable operation and use of the DC power connector;

[0033] It should be noted here that: after the connector body 1 is plugged and connected with the connecting port 2, the liquid inside the L-shaped tube 401, the connecting tube 601, the first delivery tube 602, the second delivery tube 603 and the first operating cavity 604a is squeezed and circulated through the cooperation of the heat dissipation strip 9 and the circulation component. Through the circulation of the liquid, the heat dissipation at the connection between the connector body 1 and the connecting port 2 is easily brought out to improve the heat dissipation effect of the DC power connector during use.

[0034] Preferably, the pushing assembly includes two L-shaped tubes 401 installed on the connector body 1, and mounting tubes 402 are installed on opposite sides of the two L-shaped tubes 401, and a push rod 403 is connected to the mounting tube 402 through a connecting assembly, and a transmission assembly for transmitting the push rod 403 is provided on the connector body 1;

[0035] It should be noted here that: the push rod 403 on the mounting tube 402 is squeezed through the transmission assembly, so that the push rod 403 moves toward the outside of the mounting tube 402. During the movement, one end of the push rod 403 squeezes and pushes the power terminal 102 to maintain the abutting connection between the power terminal 102 and the copper bus 201.

[0036] The connection assembly includes a plurality of connection blocks 501 fixed on the inner wall of the mounting tube 402, each connection block 501 is slidably connected with a first T-shaped rod 502, one end of the first T-shaped rod 502 is fixed to the push rod 403, and the outer side of each first T-shaped rod 502 is sleeved with a first spring 503;

[0037] It should be noted here that: the movement of the push rod 403 after being stressed is guided by the multiple connecting blocks 501 and the first T-shaped rod 502, and the reset movement of the push rod 403 after being moved is facilitated by the respective first springs 503.

[0038] Preferably, the transmission assembly includes a connecting tube 601 installed on the connector body 1, one end of the L-shaped tube 401 is connected to the connecting tube 601, the two ends of the connecting tube 601 are connected to each other and a first delivery tube 602 and a second delivery tube 603 are installed, an operation box 604 is installed at the opposite end of the first delivery tube 602 and the second delivery tube 603, a partition 605 is slidably connected inside the operation box 604, and the interior of the operation box 604 forms a first operation chamber 604a and a second operation chamber 604b under the dividing action of the partition 605, the first delivery tube 602 and the second delivery tube 603 are connected to the first operation chamber 604a, the interior of the L-shaped tube 401, the connecting tube 601, the first delivery tube 602, the second delivery tube 603 and the first operation chamber 604a are filled with liquid, and a driving assembly for driving the partition 605 and a guiding assembly for guiding during the driving process are provided on the operation box 604;

[0039] It should be noted here that: through the driving assembly and the guide assembly, the partition 605 is driven to move inside the operating box 604. Through the movement of the partition 605, the liquid inside the L-shaped tube 401, the connecting tube 601, the first delivery tube 602, the second delivery tube 603 and the first operating chamber 604a is squeezed to generate pressure. Through the pressure of the liquid, the push rod 403 on the mounting tube 402 is squeezed, so that the push rod 403 moves toward the outside of the mounting tube 402.

[0040] Preferably, the driving assembly includes a threaded tube 701 slidably connected to the operating box 604, one end of the threaded tube 701 is located inside the operating box 604 and fixed to the partition 605, a first L-shaped frame 702 is fixed to the outside of the operating box 604, a threaded rod 703 is rotatably connected to the first L-shaped frame 702, one end of the threaded rod 703 is meshed with the threaded tube 701, and a driving pin 704 for driving the threaded rod 703 is fixed to one end of the threaded rod 703; the guiding assembly includes a sleeve 801 slidably connected to the operating box 604, one end of the sleeve 801 is located inside the operating box 604 and fixed to the partition 605, a second L-shaped frame 802 is fixed to the outside of the operating box 604, a slide bar 803 is fixed to the second L-shaped frame 802, and the slide bar 803 is slidably connected to the sleeve 801;

[0041] It should be noted here that: the threaded rod 703 is driven to rotate by driving the pin 704. During the rotation of the threaded rod 703, the partition 605 is driven to move by the mutual engagement transmission between the threaded rod 703 and the threaded tube 701. During the movement of the partition 605, the partition 605 moves inside the operating box 604 through the guiding effect of the sliding rod 803 and the sleeve 801.

[0042] Preferably, a plurality of heat dissipation strips 9 are arranged on the outside of the operation box 604, and a circulation assembly for liquid circulation inside the L-shaped tube 401, the connecting tube 601, the first delivery tube 602, the second delivery tube 603 and the first operation chamber 604a is arranged on the first delivery tube 602;

[0043] It should be noted here that: after the connector body 1 and the connection port 2 are plugged in and connected, as the DC power connector is operated and used, a large amount of heat is generated at the connection between the connector body 1 and the connection port 2. The heat can be dissipated outward through the L-shaped tube 401, the connecting tube 601, the first delivery tube 602, the second delivery tube 603, the liquid inside the first operating cavity 604a, and the heat dissipation strip 9 on the operating box 604, thereby resetting and dissipating the heat of the DC power connector.

[0044] Preferably, the circulation component includes two one-way valves 1001 installed on the first delivery pipe 602, and the conduction directions of the two one-way valves 1001 are consistent. A piston tube 1002 is installed on the first delivery pipe 602, and the piston tube 1002 is located between the two one-way valves 1001. A piston rod 1003 is slidably connected to the piston tube 1002, and a T-block 1004 is fixed to one end of the piston rod 1003. A reset component for resetting the piston rod 1003 after squeezing is provided on the first delivery pipe 602;

[0045] It should be noted here that: the piston rod 1003 is squeezed by the T-block 1004 and reset by the elastic force of the second spring 1103 after squeezing, so that the piston rod 1003 is forced to reciprocate on the piston tube 1002. Since the two one-way valves 1001 are set in the same conduction direction, the piston rod 1003 squeezes the liquid inside the first delivery pipe 602, so that the liquid inside the L-shaped tube 401, the connecting tube 601, the first delivery pipe 602, the second delivery pipe 603 and the first operating chamber 604a are squeezed and circulated.

[0046] Preferably, the reset assembly includes two second T-shaped rods 1101 slidably connected to the T-shaped block 1004, one end of the two second T-shaped rods 1101 is fixed to the outer side of the first delivery pipe 602, a baffle 1102 is fixed to the outer side of the two second T-shaped rods 1101, and a second spring 1103 is sleeved on the outer side of the second T-shaped rod 1101, and the two ends of the second spring 1103 are respectively set against the baffle 1102 and the T-shaped block 1004;

[0047] It should be noted here that: the movement of the T-block 1004 after being subjected to force is guided by the plurality of second T-bars 1101 , and the reset movement of the T-block 1004 after the movement is facilitated by the respective second springs 1103 .

[0048] Preferably, the anti-drop assembly includes a pressure plate 301 mounted on the upper end of the connector body 1, a limit block 302 is fixed on the upper end of the pressure plate 301, a stopper 303 for blocking and limiting the limit block 302 is fixed on the inner side of the connection port 2, and an inclined surface for abutting against the stopper 303 is provided on the limit block 302;

[0049] It should be noted here that: the connector body 1 is plugged and connected with the connection port 2 and power is transmitted. During the process of plugging and connecting the connector body 1 and the connection port 2, the inclined surface on the limit block 302 of the pressure plate 301 abuts against the stop block 303, pushing the pressure plate 301 to contract toward the connector body 1. When the connector body 1 is fully inserted into the connection port 2, the limit block 302 is located on the inner side of the stop block 303, and the stop block 303 blocks and limits the limit block 302 and the pressure plate 301, thereby playing a role in preventing the connector body 1 and the connection port 2 from being disengaged after installation.

[0050] It is worth noting that the pressing plate 301 is made of elastic material, which facilitates its contraction and restoration after being stressed.

[0051] Preferably, the power terminal assembly includes a power terminal 102, the connector body 1 is composed of a plastic body 101 and two groups of cables 103, two groups of power terminals 102 are provided and installed on the plastic body 101, and the two groups of power terminals 102 are respectively arranged in one-to-one correspondence with the two groups of push components, the head of the power terminal 102 is provided with two groups of terminals, and the terminals adopt a five-contact structure, the two groups of terminals are located between the two L-shaped tubes 401 on the push component, and the push rod 403 is against the end of the power terminal 102, and the connection port 2 is provided with a copper bus 201 for contacting the end of the power terminal 102, two sets of cables 103 are arranged one by one with the power terminal 102, and the cables 103 and the power terminal 102 are connected by crimping and a heat shrink sleeve 104 is sleeved at the crimping connection. A plastic rear plug 105 is embedded and installed at the tail of the plastic body 101, and the heat shrink sleeve 104 is sleeved on the plastic rear plug 105. Plastic front plugs 106 for positioning and placing the power terminal 102 are provided on both sides of the plastic body 101;

[0052] It should be noted here that: the five-contact structure of the terminal improves the product's current capacity to meet high current requirements;

[0053] It is worth noting that: the crimping of the power terminal 102 and the cable 103 ensures the stability of the connection. The heat shrink sleeve 104 installed after the connection facilitates the protection of the connection. After the power terminal 102 is placed inside the plastic body 101, the plastic front plug 106 is inserted into the plastic body 101 and abutted against the two power terminals 102 to position the placed power terminal 102. The heat shrink sleeve 104 is installed on the plastic rear plug 105 to facilitate the limited installation and positioning of the power terminal 102 on the plastic body 101 after the power terminal 102 is connected to the cable 103.

[0054] In this solution: a power terminal assembly and a DC power connector, comprising the following steps:

[0055] When the DC power connector is in use, the connector body 1 is plugged and connected with the connection port 2 to transmit power. During the process of plugging and connecting the connector body 1 with the connection port 2, the inclined surface on the limit block 302 of the pressure plate 301 abuts against the stop block 303, pushing the pressure plate 301 to contract toward the connector body 1. When the connector body 1 is fully inserted into the connection port 2, the limit block 302 is located on the inner side of the stop block 303, and the stop block 303 blocks and limits the limit block 302 and the pressure plate 301, thereby preventing the connector body 1 and the connection port 2 from being disengaged after installation.

[0056] During the process of plugging and connecting the connector body 1 and the connection port 2, the power terminal 102 abuts against the copper bus 201 inside the connection port 2, and the power terminal 102 is deformed to generate toughness after the abutment, so as to maintain a good connection between the power terminal 102 and the copper bus 201. After the plugging and connection between the connector body 1 and the connection port 2 is completed, the partition 605 is driven to move inside the operation box 604 through the driving component and the guide component. Through the movement of the partition 605, the L-shaped tube 401, the connecting tube 601, the first conveying tube 602, the second conveying tube 603 and the like are connected. The liquid inside the first operating chamber 604a is squeezed to generate pressure, and the push rod 403 on the mounting tube 402 is squeezed by the pressure of the liquid, so that the push rod 403 moves toward the outside of the mounting tube 402. During the movement, one end of the push rod 403 squeezes and pushes the power terminal 102, so as to maintain the abutting connection between the power terminal 102 and the copper bus 201, thereby avoiding the unstable connection between the power terminal 102 and the copper bus 201 caused by the reduced toughness of the power terminal 102 itself and the poor reset effect, so as to facilitate the stable operation and use of the DC power connector;

[0057] After the connector body 1 and the connection port 2 are plugged and connected, as the DC power connector is operated, a large amount of heat is generated at the connection between the connector body 1 and the connection port 2. The heat can be dissipated outward through the liquid inside the L-shaped tube 401, the connecting tube 601, the first delivery tube 602, the second delivery tube 603 and the first operating chamber 604a and the heat dissipation strip 9 on the operating box 604, so as to reset and dissipate heat for the DC power connector. In the process of heat dissipation, the piston rod 1003 is squeezed by the T-shaped block 1004 and the second spring 1103 is squeezed. Due to the elastic restoring effect, the piston rod 1003 is forced to reciprocate on the piston tube 1002. Since the two one-way valves 1001 are set in the same conduction direction, the piston rod 1003 squeezes the liquid inside the first delivery tube 602, so that the liquid inside the L-shaped tube 401, the connecting tube 601, the first delivery tube 602, the second delivery tube 603 and the first operating chamber 604a is squeezed and circulated. Through the circulation of the liquid, the heat dissipation at the connection between the connector body 1 and the connecting port 2 is easily brought out, thereby improving the heat dissipation effect of the DC power connector during use.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A DC power connector, comprising: A connector body (1) for connecting to a connection port (2) for transmission, the connector body (1) comprising a plastic body (101), a power terminal (102) and two groups of cables (103), the power terminal (102) being provided in two groups and mounted on the plastic body (101); It is characterized by further comprising: An anti-drop component is provided between the connector body (1) and the connection port (2) for preventing the connector from dropping out after connection, wherein the connector body (1) is provided with two sets of pushing components for ensuring good contact during the connection and use of the connector body (1); The pushing assembly comprises two L-shaped tubes (401) mounted on the connector body (1), a mounting tube (402) being mounted on opposite sides of the two L-shaped tubes (401), a push rod (403) being connected to the mounting tube (402) via a connecting assembly, a transmission assembly for transmitting the push rod (403) being provided on the connector body (1), two groups of power terminals (102) being respectively arranged in one-to-one correspondence with the two groups of pushing assemblies, two groups of end heads being arranged at the heads of the power terminals (102), and the end heads adopting a five-contact structure, the two groups of end heads being located between the two L-shaped tubes (401) on the pushing assembly, and the push rod (403) being abutted against the end heads of the power terminals (102), and a copper bus (201) for contacting the end heads of the power terminals (102) being provided inside the connecting port (2); The connection assembly comprises a plurality of connection blocks (501) fixed on the inner wall of the mounting tube (402), each of the connection blocks (501) being slidably connected to a first T-shaped rod (502), one end of the first T-shaped rod (502) being fixed to a push rod (403), and a first spring (503) being sleeved on the outer side of each of the first T-shaped rods (502); The transmission assembly comprises a connecting tube (601) mounted on a connector body (1); one end of the L-shaped tube (401) is connected to the connecting tube (601); a first delivery tube (602) and a second delivery tube (603) are connected to the two ends of the connecting tube (601); an operation box (604) is installed at the end opposite to the first delivery tube (602) and the second delivery tube (603); a partition (605) is slidably connected to the interior of the operation box (604); and the interior of the operation box (604) is connected to the partition (605). 5), a first operating chamber (604a) and a second operating chamber (604b) are formed under the dividing action of the first delivery pipe (602) and the second delivery pipe (603) are arranged in communication with the first operating chamber (604a), the interiors of the L-shaped pipe (401), the connecting pipe (601), the first delivery pipe (602), the second delivery pipe (603) and the first operating chamber (604a) are filled with liquid, and the operating box (604) is provided with a driving component for driving the partition (605) and a guiding component for guiding during the driving process.

2. A DC power connector according to claim 1, characterized in that: The driving assembly comprises a threaded tube (701) slidably connected to an operating box (604); one end of the threaded tube (701) is located inside the operating box (604) and fixed to a partition (605); a first L-shaped frame (702) is fixed to the outside of the operating box (604); a threaded rod (703) is rotatably connected to the first L-shaped frame (702); one end of the threaded rod (703) is meshed with the threaded tube (701); and a driving pin (704) for driving the threaded rod (703) is fixed to one end of the threaded rod (703).

3. A DC power connector according to claim 2, characterized in that: The guide assembly comprises a sleeve (801) slidably connected to the operating box (604); one end of the sleeve (801) is located inside the operating box (604) and fixed to the partition (605); a second L-shaped frame (802) is fixed to the outside of the operating box (604); a sliding rod (803) is fixed to the second L-shaped frame (802); and the sliding rod (803) is slidably connected to the sleeve (801).

4. A DC power connector according to claim 3, characterized in that: The outside of the operation box (604) is provided with a plurality of heat dissipation strips (9), and the first delivery pipe (602) is provided with a circulation component for circulating liquid inside the L-shaped pipe (401), the connecting pipe (601), the first delivery pipe (602), the second delivery pipe (603) and the first operation chamber (604a).

5. A DC power connector according to claim 4, characterized in that: The circulation component comprises two one-way valves (1001) installed on a first delivery pipe (602), and the two one-way valves (1001) have the same conduction direction. A piston tube (1002) is installed on the first delivery pipe (602) in communication with each other. The piston tube (1002) is located between the two one-way valves (1001). A piston rod (1003) is slidably connected to the piston tube (1002), and a T-block (1004) is fixed to one end of the piston rod (1003). A reset component for resetting the piston rod (1003) after squeezing is provided on the first delivery pipe (602).

6. A DC power connector according to claim 5, characterized in that: The reset assembly comprises two second T-shaped rods (1101) slidably connected to the T-shaped block (1004), one end of the two second T-shaped rods (1101) being fixed to the outer side of the first conveying pipe (602), a baffle (1102) being fixed to the outer side of the two second T-shaped rods (1101), a second spring (1103) being sleeved on the outer side of the second T-shaped rod (1101), and two ends of the second spring (1103) being respectively arranged to abut against the baffle (1102) and the T-shaped block (1004).

7. A DC power connector according to claim 6, characterized in that: The anti-drop assembly comprises a pressure plate (301) mounted on the upper end of the connector body (1); a limit block (302) is fixed to the upper end of the pressure plate (301); a stop block (303) for blocking and limiting the position with the limit block (302) is fixed to the inner side of the connection port (2); and an inclined surface for abutting against the stop block (303) is provided on the limit block (302).

8. A power terminal assembly, applied to the DC power connector according to any one of claims 1 to 7, characterized in that: The power terminal assembly is a power terminal (102), the two groups of cables (103) and the power terminals (102) are arranged in a one-to-one correspondence, and the cables (103) and the power terminals (102) are connected by crimping at the connection point and a heat shrink sleeve (104) is sleeved at the crimping connection point, a plastic rear plug (105) is embedded and installed at the tail of the plastic body (101), the heat shrink sleeve (104) is sleeved on the plastic rear plug (105), and plastic front plugs (106) for positioning the power terminals (102) are arranged on both sides of the plastic body (101).

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