High safety terminal

Abstract

The utility model discloses a high security terminal, including terminal and mounting seat, be provided with the accommodation groove of adaptation with terminal on the mounting seat, the side of terminal is radially provided with the slot of communication with its inner core, the temperature sensor is inserted to the slot, the tail end of temperature sensor is connected with the core wire of same direction extension, the extension direction of temperature sensor, core wire is identical with the extension direction of slot, the side of accommodation groove is provided with the limit slot, and the core wire is clamped in the limit slot. The scheme is radially provided with temperature sensor in the terminal, and guarantees that the extension direction of temperature sensor and core wire are identical, guarantees that temperature sensor can effectively detect the core temperature in the terminal while avoiding the fracture of the junction of temperature sensor and core wire because of the turning, and the detection accuracy and reliability are ensured.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage connector technology, and specifically to a high-safety terminal. Background Technology

[0002] In modern electrical systems, high-voltage connector plugs and sockets are critical components, responsible for transmitting high voltage and high current. Their stability and reliability directly affect the safety and normal operation of the entire system. Due to the transmission of high-voltage current, the power terminals generate high temperatures, and temperature is undoubtedly one of the key factors affecting the performance of high-voltage connector plugs and sockets.

[0003] Currently, most charging gun connectors on the market use temperature control elements installed at the terminal end, either by bundling them with plastic or by positioning them on the terminal end or the surface of the core wire. However, the area with the highest temperature rise in actual charging gun connector terminals is not the terminal end or the surface of the core wire. This deviation from the detection point can lead to delayed temperature control protection action, and in severe cases, even the risk of burning out the equipment. For example, a connector terminal disclosed in announcement number CN107887725B, although it has the temperature control element built into the terminal, has an inconsistent extension direction between the temperature control element and the core wire, and they are perpendicular to each other. In actual use, this makes it easy to break due to pulling, and the lack of visibility inside makes it impossible to detect the temperature control element, causing inconvenience in use. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a highly secure terminal.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A high-safety terminal includes a terminal and a mounting base. The mounting base is provided with a receiving groove adapted to the terminal. The side of the terminal is provided with a slot that communicates with the inner core. A temperature sensor is inserted into the slot. The tail end of the temperature sensor is connected to a core wire extending in the same direction as the temperature sensor. The extension direction of the temperature sensor and the core wire is consistent with the extension direction of the slot. The side of the receiving groove is provided with a limiting groove, and the core wire is locked in the limiting groove.

[0007] Preferably, the terminal includes a head and a rod, the cross-section of the head is non-circular, the rod is cylindrical, and the width of the head is greater than the diameter of the rod, with a first stepped surface formed at the connection between the two.

[0008] Preferably, the receiving groove includes a first inner cavity and a second inner cavity that are connected to each other. The inner contour of the first inner cavity is adapted to the outer contour of the head, and the inner contour of the second inner cavity is adapted to the rod. A limiting step surface is formed between the first inner cavity and the second inner cavity. The head is engaged in the first inner cavity, and the rod is engaged in the second inner cavity. The first step surface abuts against the limiting step surface.

[0009] Preferably, the outer sidewall of the head has four straight cut surfaces evenly distributed around its periphery, and the inner contour of the first inner cavity also has four limiting planes that match the straight cut surfaces, so as to limit the head.

[0010] Preferably, the inner wall of the first inner cavity forms a first limiting plane and a second limiting plane that match the straight cut surface, and a radially extending limiting rib is provided on the other two sides of the first inner cavity, and the straight inner surfaces of the two limiting ribs form a third limiting plane and a fourth limiting plane that match the straight cut surface.

[0011] Preferably, the middle part of the first limiting plane is hollow to form a first groove, and the middle part of the second limiting plane is hollow to form a second groove.

[0012] Preferably, the limiting groove is connected to the second groove, the width of the opening of the limiting groove is smaller than its internal width to limit the position of the temperature sensor, and the width of the opening matches the diameter of the core wire so that the core wire can pass through.

[0013] Preferably, the mounting base is provided with a guide groove that communicates with the bottom of the limiting groove, and the core wire is accommodated in the guide groove and extends along the guide groove.

[0014] Preferably, the terminal has a threaded hole, and an anti-touch finger cap is detachably provided at the outer end of the threaded hole, the anti-touch finger cap protruding from the end of the terminal.

[0015] Preferably, a sealing ring is embedded on the back of the mounting base, and the sealing ring is arranged around the outer wall of the receiving groove.

[0016] The beneficial effects of this utility model are mainly reflected in:

[0017] 1. A slot and a limiting groove are set radially inside the terminal so that the extension direction of the slot and the limiting groove is consistent with the extension direction of the temperature sensor and the core wire. This ensures that the extension direction of the temperature sensor and the core wire is consistent, enhances the stability and reliability of the connection between the two, and avoids the breakage caused by the bend at the connection between the temperature sensor and the core wire. The slot is also connected to the inner core of the terminal, so that the temperature sensor can effectively detect the core temperature inside the terminal, ensuring the accuracy and reliability of the detection.

[0018] 2. A limiting groove connected to the slot is set outside the slot to limit the temperature sensor while allowing the core wire to pass through. A guide groove connected to the bottom of the limiting groove is set to effectively position the temperature sensor and the core wire from a rigid structure, provide certain support for the position of the temperature sensor and the core wire, and ensure the effectiveness of the connection between the terminal and the temperature sensor.

[0019] 3. A finger-proof cap is installed at the end of the internal threaded hole of the terminal to prevent finger contact and ensure safe use. Attached Figure Description

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0021] Figure 1 : Schematic diagram of an embodiment of this utility model;

[0022] Figure 2 : A schematic diagram of the terminals in the embodiments of this utility model;

[0023] Figure 3 Cross-sectional view of an embodiment of this utility model;

[0024] Figure 4 Top view of an embodiment of this utility model;

[0025] Figure 5 : Bottom view of an embodiment of this utility model. 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 protection scope 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 5As shown, this utility model discloses a high-safety terminal, including a terminal 1 and a mounting base 2. The mounting base 2 is provided with a receiving groove 201 adapted to the terminal 1. The side of the terminal 1 is provided with a slot 100 that communicates with the inner core. A temperature sensor 3 is inserted into the slot 100. The tail end of the temperature sensor 3 is connected to a core wire 301 extending in the same direction as it. The extending directions of the temperature sensor 3 and the core wire 301 are consistent with the extending direction of the slot 100. The side of the receiving groove 201 is provided with a limiting groove 202, and the core wire 301 is locked in the limiting groove 202.

[0029] This design provides a slot 100 radially inside the terminal 1, such that the extension direction of the slot 100 and the limiting groove 202 is consistent with the extension direction of the temperature sensor 3 and the core wire 301. This ensures that the extension directions of the temperature sensor 3 and the core wire 301 are consistent, thereby enhancing the stability and reliability of their connection and preventing breakage due to bends at the connection between the temperature sensor 3 and the core wire 301. Furthermore, the slot 100 is connected to the inner core of the terminal 1, enabling the temperature sensor 3 to effectively detect the core temperature inside the terminal 1, ensuring detection accuracy and reliability.

[0030] Specific examples Figure 2 and Figure 3 As shown, the terminal 1 includes a head 101 and a rod 102. The cross-section of the head 101 is non-circular, and the rod 102 is cylindrical. The width of the head 101 is greater than the diameter of the rod 102, and a first stepped surface 103 is formed at the connection between the two.

[0031] The receiving groove 201 includes a first inner cavity 2011 and a second inner cavity 2012 that are connected. The inner contour of the first inner cavity 2011 is adapted to the outer contour of the head 101, and the inner contour of the second inner cavity 2012 is adapted to the rod 102. A limiting step surface 2013 is formed between the first inner cavity 2011 and the second inner cavity 2012. The head 101 is engaged in the first inner cavity 2011, and the rod 102 is engaged in the second inner cavity. The first step surface 103 abuts against the limiting step surface 2013.

[0032] The receiving groove 201 is adapted to the terminal 1 to make them fit more closely, thereby providing stability and reliability for the terminal 1 within the receiving groove 201. The first stepped surface 103 abuts against the limiting stepped surface 2013 to limit the position of the terminal 1 in the axial direction. The non-circular cross-sectional structure of the head 101 serves to prevent rotation, limiting the position of the terminal 1 in the radial direction and preventing the terminal 1 from rotating within the receiving groove 201, which could cause bending at the connection between the temperature sensor 3 and the core wire 301.

[0033] Furthermore, in a preferred embodiment, the outer sidewall of the head 101 is circumferentially spaced with four straight cut surfaces 104, and the inner contour of the first inner cavity 2011 is also formed with four limiting planes that match the straight cut surfaces 104 to define the head 101. In the illustrated preferred embodiment, the head 101 is approximately square. In other feasible embodiments, the head 101 can also be other feasible non-circular cross-sections, such as triangles, polygons, ellipses, etc., which are not limited here.

[0034] Specific examples Figure 3 and Figure 4 As shown, the inner wall of the first inner cavity 2011 forms a first limiting plane 203 and a second limiting plane 204 that match the straight cut surface 104. A radially extending limiting rib 205 is provided on the other two sides of the first inner cavity 2011. The straight inner surfaces of the two limiting ribs 205 form a third limiting plane 206 and a fourth limiting plane 207 that match the straight cut surface 104.

[0035] The first limiting plane 203 has a hollow middle portion forming a first groove 208, and the second limiting plane 204 has a hollow middle portion forming a second groove 209. The design of the first groove 208 and the second groove 209 avoids a tight fit between the first limiting plane 203, the fourth limiting plane 207, and the terminal 1, facilitating installation and disassembly. It also reduces the contact area between the terminal 1 and the receiving groove 201, facilitating heat dissipation from the terminal 1 and preventing overheating.

[0036] The limiting groove 202 is connected to the second groove 209. The width of the opening 2021 of the limiting groove 202 is smaller than its inner width to limit the position of the temperature sensor 3. The width of the opening 2021 matches the diameter of the core wire 301 so that the core wire 301 can pass through.

[0037] Furthermore, the mounting base 2 is provided with a guide groove 210 communicating with the bottom of the limiting groove 202. The core wire 301 is accommodated in the guide groove 210 and extends along the guide groove 210. The limiting groove 202 communicating with the slot 100 is provided outside the slot 100 to limit the temperature sensor 3 while allowing the core wire 301 to pass through. The bottom of the limiting groove 202 is provided with a guide groove 210 communicating with it, so that the mounting base 1 can effectively position the temperature sensor 3 and the core wire 301 from a rigid structural perspective, provide certain support for the position of the temperature sensor 3 and the core wire 301, and ensure the effectiveness of the connection between the terminal 1 and the temperature sensor 3.

[0038] like Figure 3 As shown, the terminal 1 has a threaded hole 105, and a finger-proof cap 106 is detachably provided at the outer end of the threaded hole 105. The finger-proof cap 106 protrudes outward from the end of the terminal 1. The distance between the outer peripheral wall of the finger-proof cap 106 and the inner peripheral wall of the end of the terminal 1 is the exposed surface of the terminal 1. The width of the exposed surface is less than the width that a finger can penetrate, thereby providing a safety function to prevent finger contact and ensuring safe use.

[0039] In addition, a sealing ring 4 is embedded on the back of the mounting base 2. The sealing ring 4 is arranged around the outer wall of the receiving groove 201 so that after the mounting base 1 is installed in the corresponding position, the sealing ring 4 can seal the terminal 1 and prevent the external environment from affecting the terminal 1.

[0040] 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.

[0041] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high-security terminal, characterized in that: The device includes a terminal (1) and a mounting base (2). The mounting base (2) is provided with a receiving groove (201) that is adapted to the terminal (1). The side of the terminal (1) is provided with a slot (100) that communicates with the inner core. A temperature sensor (3) is inserted into the slot (100). The tail end of the temperature sensor (3) is connected to a core wire (301) that extends in the same direction. The extension direction of the temperature sensor (3) and the core wire (301) is consistent with the extension direction of the slot (100). A limiting groove (202) is provided on the side of the receiving groove (201). The core wire (301) is locked in the limiting groove (202).

2. The high-security terminal according to claim 1, characterized in that: The terminal (1) includes a head (101) and a rod (102). The cross-section of the head (101) is non-circular, and the rod (102) is cylindrical. The width of the head (101) is greater than the diameter of the rod (102), and a first stepped surface (103) is formed at the connection between the two.

3. The high-security terminal according to claim 2, characterized in that: The receiving groove (201) includes a first inner cavity (2011) and a second inner cavity (2012) that are connected. The inner contour of the first inner cavity (2011) is adapted to the outer contour of the head (101), and the inner contour of the second inner cavity (2012) is adapted to the rod (102). A limiting step surface (2013) is formed between the first inner cavity (2011) and the second inner cavity (2012). The head (101) is engaged in the first inner cavity (2011), and the rod (102) is engaged in the second inner cavity. The first step surface (103) abuts against the limiting step surface (2013).

4. The high-security terminal according to claim 3, characterized in that: The outer sidewall of the head (101) is circumferentially spaced with four straight cut surfaces (104), and the inner contour of the first inner cavity (2011) is also formed with four limiting planes that match the straight cut surfaces (104) to limit the head (101).

5. The high-security terminal according to claim 4, characterized in that: The inner wall of the first inner cavity (2011) forms a first limiting plane (203) and a second limiting plane (204) that match the straight cut surface (104). A radially extending limiting rib (205) is provided on the other two sides of the first inner cavity (2011). The straight inner surfaces of the two limiting ribs (205) form a third limiting plane (206) and a fourth limiting plane (207) that match the straight cut surface (104).

6. The high-security terminal according to claim 5, characterized in that: The first limiting plane (203) is hollow in the middle to form a first groove (208), and the second limiting plane (204) is hollow in the middle to form a second groove (209).

7. The high-security terminal according to claim 6, characterized in that: The limiting groove (202) is connected to the second groove (209). The width of the opening (2021) of the limiting groove (202) is smaller than its inner width to limit the position of the temperature sensor (3). The width of the opening (2021) matches the diameter of the core wire (301) so that the core wire (301) can pass through.

8. The high-security terminal according to claim 7, characterized in that: The mounting base (2) is provided with a guide groove (210) that communicates with the bottom of the limiting groove (202). The core wire (301) is housed in the guide groove (210) and extends along the guide groove (210).

9. The high-security terminal according to any one of claims 1-8, characterized in that: The terminal (1) has a threaded hole (105) and a finger cap (106) is detachably provided at the outer end of the threaded hole (105). The finger cap (106) protrudes outward from the end of the terminal (1).

10. The high-security terminal according to claim 9, characterized in that: A sealing ring (4) is embedded on the back of the mounting base (2), and the sealing ring (4) is arranged around the outer wall of the receiving groove (201).

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