Power terminal structure with temperature sensor and multi-core high current connector

Abstract

The utility model discloses a kind of power terminal structure and multicore large current connector with temperature sensor, comprising: power terminal assembly is placed in the power terminal front mounting plate, power terminal middle mounting plate and power terminal rear mounting plate connected in turn, and power terminal middle mounting plate support is set in the outer of power terminal middle mounting plate;Temperature sensor head is inserted into the mounting hole of the rear end of power terminal assembly, temperature sensor tail cable is set after being bent with power terminal assembly axial parallel, and temperature sensor tail cable is passed through the side of power terminal middle mounting plate and power terminal middle mounting plate support after, through the power terminal rear mounting plate installation slot of power terminal rear mounting plate outside of power terminal rear mounting plate, limit installation is carried out.The utility model realizes the built-in integrated of reliable stable and easily assembled temperature sensor on power terminal under the premise of not significantly increasing structural complexity, to solve the problems, such as inaccurate measurement, easy to loosen, cable messy, existing in traditional external temperature measurement mode.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically, to a power terminal structure with a temperature sensor and a multi-core high-current connector. Background Technology

[0002] In the field of electrical connections and power transmission, power terminals, as a key component, are widely used in new energy vehicles, industrial equipment, energy storage systems, and renewable energy devices to achieve reliable connection and transmission of high currents. With the continuous increase in system power density and performance requirements, the temperature rise of power terminals due to current loads during operation is becoming increasingly prominent. Overheating not only accelerates material aging and reduces connection reliability but may also lead to system failures or even safety accidents. Therefore, real-time and accurate monitoring of the operating temperature of power terminals has become crucial.

[0003] Traditional temperature monitoring solutions typically employ external temperature sensors, such as those fixed to the power terminal surface via clamps or adhesive. This approach has significant limitations: poor sensor installation stability, prone to displacement or detachment due to vibration or mechanical stress, leading to unreliable measurement data; insufficient contact between the sensor and the terminal surface, resulting in thermal resistance and affecting the accuracy and real-time performance of the temperature response; furthermore, external sensors and cables are often exposed to the external environment, lacking effective protection and fixation, making them susceptible to mechanical damage or electromagnetic interference, and thus failing to meet the requirements of high-reliability applications.

[0004] On the other hand, some existing technologies attempt to integrate sensors into the terminals, but these often result in complex structures, requiring additional packaging components or complex wiring methods. This not only increases assembly difficulty and cost but may also affect the electrical performance and mechanical strength of the terminals. Furthermore, if the sensor cables are not properly routed, they are prone to interfering with other components in a limited space, increasing the complexity of installation and maintenance.

[0005] Therefore, there is an urgent need for a power terminal temperature monitoring solution that is compact, stable in installation, accurate in temperature measurement, and easy to implement, in order to improve the reliability, safety, and intelligence level of the system operation. Utility Model Content

[0006] To address the aforementioned technical problems, the present invention aims to provide a power terminal structure with a temperature sensor and a multi-core high-current connector. Without significantly increasing structural complexity, it achieves accurate, reliable, stable, and easy-to-assemble built-in integration of the temperature sensor on the power terminal, thereby solving the problems of inaccurate measurement, easy loosening, and messy cables that exist in traditional external temperature measurement methods.

[0007] The present invention solves the above problems through the following technical solution:

[0008] A power terminal structure with a temperature sensor includes: a power terminal assembly, a front mounting plate for power terminals, a middle mounting plate for power terminals, a support member for the middle mounting plate for power terminals, a rear mounting plate for power terminals, and a temperature sensor; the power terminal assembly is disposed within the front mounting plate for power terminals, the middle mounting plate for power terminals, and the rear mounting plate for power terminals, which are connected end to end; the support member for the middle mounting plate for power terminals is sleeved outside the middle mounting plate for power terminals.

[0009] The temperature sensor has a connected temperature sensor head and a temperature sensor tail cable. A mounting hole is formed at the rear end of the power terminal assembly. The temperature sensor head is inserted into the mounting hole. The temperature sensor tail cable is bent and arranged parallel to the axis of the power terminal assembly. The temperature sensor tail cable passes through the side of the power terminal mounting plate and the power terminal mounting plate support and is then limited by the mounting groove of the power terminal mounting plate on the outside of the power terminal mounting plate.

[0010] As a further improvement, the front end of the power terminal assembly is inserted into the front mounting plate of the power terminal, and the rear end is inserted into the middle mounting plate of the power terminal; the front end of the middle mounting plate of the power terminal is inserted into the outer limit of the front mounting plate of the power terminal, and the rear end is inserted into the inner limit of the rear mounting plate of the power terminal.

[0011] As a further improvement, the mounting hole is arranged axially parallel to the power terminal assembly.

[0012] As a further improvement, the mounting plate of the power terminal is through the middle and has a left part and a right part of the mounting plate of the power terminal for mating installation.

[0013] As a further improvement, the left side of the mounting plate in the power terminal and the right side of the mounting plate in the power terminal are respectively formed with a groove and a boss in the mounting plate in the power terminal for snap-fit, so as to install the mounting plate in the power terminal.

[0014] As a further improvement, the outer side of the mounting plate in the power terminal is formed with mounting holes and mounting grooves. The mounting holes are for the rear end of the temperature sensor tail cable to pass through, so that the rear end of the temperature sensor tail cable is located outside the mounting plate in the power terminal. The mounting groove engages with the mounting boss of the mounting plate support member inside the mounting plate support member, so as to fit the mounting plate support member outside the mounting plate in the power terminal.

[0015] As a further improvement, the mounting plate support in the power terminal has a slot formed on its side to facilitate the avoidance of the temperature sensor tail cable during installation.

[0016] Furthermore, this utility model also solves the above problems through the following technical solutions:

[0017] A multi-core high-current connector with a temperature sensor, characterized in that it includes a power terminal structure with a temperature sensor as described above, and a housing;

[0018] A first sealing groove with a first sealing ring is formed on the outside of the power terminal assembly, and the first sealing ring seals the power terminal assembly and the front mounting plate of the power terminal assembly; a mounting protrusion is formed on the outside of the front mounting plate of the power terminal assembly, and the rear side of the mounting protrusion is used to limit the installation of the power terminal assembly.

[0019] As a further improvement, the multi-core high-current connector is also provided with a housing, and the front end of the power terminal front mounting plate is inserted into the housing, with a second sealing ring pressed between the power terminal front mounting plate and the housing.

[0020] As a further improvement, the multi-core high-current connector also includes: a sealing ring on the end face of the mounting plate, a mounting plate, a power cable, and a power terminal tail cover and a power terminal sealing body sleeved on the power cable; both the power terminal tail cover and the power terminal sealing body are provided with holes for the tail cable of the temperature sensor to pass through, the front end of the power cable is connected to the rear end of the power terminal assembly, and the power terminal assembly is disposed in the front mounting plate of the power terminal; the front mounting plate of the power terminal is disposed in the housing, and the front mounting plate of the power terminal is also disposed through the mounting plate at the rear end of the housing and sealed by the sealing ring on the end face of the mounting plate; the power terminal sealing body is pressed into the power terminal tail cover, and the power terminal tail cover is snapped into the rear end of the mounting plate.

[0021] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0022] (1) The arrangement of the temperature sensor in this utility model is designed according to the functional requirements. The main feature is to add an internal temperature sensor to the power terminal of the socket / plug, so that the temperature sensor can be embedded vertically or horizontally in the terminal insertion direction, which can effectively monitor the heating temperature of the terminal, while the measurement accuracy is higher, and the temperature sensor is not easy to be removed from the terminal component under force.

[0023] (2) According to functional requirements, this utility model obtains the independent waterproof function of plug and socket through a simple structure. In scenarios of frequent plugging and unplugging and harsh working conditions, the independent waterproof function improves the stability of the product during use by preventing water vapor intrusion when not in use and preventing condensation during use. Attached Figure Description

[0024] Figure 1 This is an exploded view of a power terminal structure with a temperature sensor according to the present invention.

[0025] Figure 2 This is a cross-sectional schematic diagram of a power terminal structure with a temperature sensor according to the present invention;

[0026] Figure 3 This is a schematic diagram of the mounting plate and the mounting plate support in the power terminal of this utility model;

[0027] Figure 4 This is a cross-sectional schematic diagram of a multi-core high-current connector with a temperature sensor according to the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of a multi-core high-current connector with a temperature sensor according to the present invention;

[0029] Figure 6 This is an exploded cross-sectional view showing that the housing and electrical mounting surface of this utility model are individually waterproofed.

[0030] Figure 7 This is an exploded structural diagram of the separately waterproofed housing and electrical mounting surface of this utility model.

[0031] Reference numerals: 1004, Temperature sensor; 10041, Temperature sensor head; 10042, Temperature sensor tail cable; 1006, Front mounting plate for power terminals; 10061, Mounting protrusion; 1007, Middle mounting plate for power terminals; 10071, Groove for middle mounting plate for power terminals; 10072, Boss for middle mounting plate for power terminals; 10073, Mounting hole for middle mounting plate for power terminals; 1008, Support for middle mounting plate for power terminals; 10081, Mounting boss for mounting plate support; 1009, Rear mounting plate for power terminals; 10091, Mounting hole for rear mounting plate for power terminals; 10092, Mounting groove for rear mounting plate for power terminals; 1010, Housing; 10102, External groove for housing; 1011, Mounting plate; 1012 1013 Power terminal end cap; 1014 Power cable; 1015 First sealing ring; 1016 Second sealing ring; 1017 Power terminal sealing body; 1018 Mounting plate end face sealing ring; 1019 First screw; 1020 Electrical mounting panel; 10201 Electrical mounting panel sealing surface; 1021 Second screw; 1200 Power terminal assembly; 12001 Mounting hole; 12002 First sealing groove; 1240 Power terminal with temperature sensor assembly; 1250 Power terminal mounting plate assembly; 1260 Power terminal mounting plate assembly; 12501 Mounting groove; 1320 Socket mounting panel sealing assembly; 20000 Power terminal mounting plate component. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1:

[0034] like Figure 1-3 A power terminal structure with a temperature sensor, using a horizontally placed temperature sensor embodiment, includes: a power terminal assembly 1200, a front mounting plate 1006, a middle mounting plate 1007, a middle mounting plate support 1008, a rear mounting plate 1009, and a temperature sensor 1004; the power terminal assembly 1200 is disposed within the front mounting plate 1006, the middle mounting plate 1007, and the rear mounting plate 1009, and the middle mounting plate support 1008 is sleeved outside the middle mounting plate 1007; specifically, the front end of the power terminal assembly 1200 is limited and inserted into the front mounting plate 1006, and the rear end is inserted into the middle mounting plate 1007, with the front end of the middle mounting plate 1007 being limited and inserted externally to the front mounting plate 1006, and the rear end being limited and inserted internally to the rear mounting plate 1009.

[0035] The temperature sensor 1004 has a connected temperature sensor head 10041 and a temperature sensor tail cable 10042. The rear end of the power terminal assembly 1200 has a mounting hole 12001 that is parallel to the axial direction of the power terminal assembly 1200. The temperature sensor head 10041 is inserted into the mounting hole 12001, and the temperature sensor tail cable 10042 is bent and arranged parallel to the temperature sensor head 10041.

[0036] The power terminal mounting plate 1007 has a left and a right portion for mounting, each with a recess 10071 and a boss 10072. The recess and boss engage to mount the power terminal mounting plate 1007. The power terminal mounting plate 1007 has a through-hole in the middle and an outer surface with a mounting hole 10073 and a mounting groove 12501. The mounting hole 10073 is used for temperature sensing by the temperature sensor 1004. The rear end of the temperature sensor tail cable 10042 passes through so that the rear end of the temperature sensor tail cable 10042 is located outside the power terminal mounting plate 1007; the mounting groove 12501 engages with the mounting boss 10081 of the power terminal mounting plate support member 1008 on the inner side of the power terminal mounting plate support member 1008 so that the power terminal mounting plate support member 1008 is sleeved outside the power terminal mounting plate 1007; and the side of the power terminal mounting plate support member 1008 has a front-facing slot so that the temperature sensor tail cable 10042 of the temperature sensor 1004 can be avoided during installation, so that the temperature sensor tail cable 10042 is located inside the slot.

[0037] The power terminal rear mounting plate 1009 has a through-hole 10091, and the outer side has a mounting groove 10092 for fixing the tail cable 10042 of the temperature sensor. The power terminal middle mounting plate 1007, which is fitted with a power terminal middle mounting plate support 1008, is inserted into the power terminal rear mounting plate mounting hole 10091.

[0038] During installation, first insert the temperature sensor head 10041 into the mounting hole 12001 of the power terminal assembly 1200 to form a power terminal with a temperature sensor assembly 1240. The power terminal mounting plate 1007 is designed with a power terminal mounting plate groove 10071 and a power terminal mounting plate boss 10072. Select two power terminal mounting plates 1007 and mate the power terminal mounting plate groove 10071 and the power terminal mounting plate boss 10072. At the same time, insert the assembled power terminal with temperature sensor assembly 1240 into the power terminal mounting plate. Assemble the components in mounting hole 10073 to form power terminal mounting plate assembly 1250; then mate the mounting boss 10081 of the power terminal mounting plate support with the mounting groove 12501 in the power terminal mounting plate assembly 1250 to form power terminal mounting plate second assembly 1260; finally, insert the power terminal mounting plate second assembly 1260 into the power terminal rear mounting plate mounting hole 10091, while placing the temperature sensor tail cable 10042 in the power terminal rear mounting plate mounting groove 10092, forming power terminal mounting plate component 20000. The implementation scheme for the remaining three power socket terminals is the same.

[0039] Example 2:

[0040] like Figure 4-7 A multi-core high-current connector with a temperature sensor includes a power terminal structure with a temperature sensor as described in Embodiment 1, and a housing 1010.

[0041] The power terminal assembly 1200 has a first sealing groove 12002 formed on its outer side for mounting a first sealing ring 1014 to seal between the power terminal assembly 1200 and the power terminal front mounting plate 1006. The power terminal front mounting plate 1006 has a mounting protrusion 10061 on its outer side. The rear protrusion is used to limit the mounting of the power terminal assembly 1200, and the front protrusion is used to limit the mounting of a second sealing ring 1015 fitted onto the power terminal front mounting plate 1006. The front end of the power terminal front mounting plate 1006 is inserted into the housing 1010, and the second sealing ring 1015 seals the power terminal front mounting plate 1006 and the rear end face of the housing 1010.

[0042] In an optional embodiment, the multi-core high-current connector further includes: a mounting plate end face sealing ring 1017, a mounting plate 1011, a power cable 1013, and a power terminal end cap 1012 and a power terminal sealing body 1016 sleeved on the power cable 1013.

[0043] Both the power terminal tail cover 1012 and the power terminal sealing body 1016 are provided with holes for the temperature sensor tail cable 10042 to pass through. When the front end of the power cable 1013 is connected to the rear end of the power terminal assembly 1200 and is placed in the housing 1010 after being installed on the front mounting plate 1006 of the power terminal, it also needs to pass through the mounting plate 1011, which is installed at the rear end of the housing 1010 and sealed by the mounting plate end face sealing ring 1017. The power terminal tail cover 1012 is snapped into the outside of the mounting plate 1011, and the power terminal sealing body 1016 is pressed into the power terminal tail cover 1012 to achieve sealing. The limiting installation of a power terminal structure with a temperature sensor is achieved by the snapping of the power terminal tail cover 1012 into the outside of the mounting plate 1011 and the abutment between the rear end of the housing 1010 and the mounting protrusion 10061.

[0044] Preferably, the mounting plate 1011 and the rear end face of the housing 1010 are in contact to achieve a seal through the mounting plate end face sealing ring 1017, and are connected and installed by the first screw 1018.

[0045] An electrical mounting panel 1020 is also provided on the rear side of the housing 1010 by screws, and a third sealing ring 1019 is provided between the housing 1010 and the electrical mounting panel 1020 to achieve a seal.

[0046] The waterproofing method for the socket and electrical component mounting surface sealing direction is as follows: A housing 1010, a third sealing ring 1019, an electrical mounting panel 1020, and a second screw 1021 are designed. The third sealing ring 1019 is inserted into the external groove 10102 of the housing to form a socket mounting panel sealing assembly 1320. The socket mounting panel sealing assembly 1320 is connected to the electrical mounting panel 1020 via the second screw 1021. At this time, the socket sealing ring rib 10191 of the socket mounting panel sealing assembly 1320 contacts the sealing surface 10201 of the electrical mounting panel, generating sealing pressure. This achieves the sealing performance in the socket and electrical component mounting surface sealing direction.

[0047] The above description pertains to the socket end. The corresponding plug end can also be configured similarly. By simply setting the housing to a socket housing / plug housing and the power terminals to pin power terminals / socket power terminals, end conversion can be achieved. This allows the plug and socket to share common components, reducing mold costs while ensuring stable product performance. Considering all factors, this connector temperature sensor arrangement and sealing design, along with injection molding of the product parts, results in lower overall manufacturing costs and improved product performance.

[0048] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A power terminal structure with a temperature sensor, characterized in that, include: The power terminal assembly includes a front mounting plate for power terminals, a middle mounting plate for power terminals, a support for the middle mounting plate for power terminals, a rear mounting plate for power terminals, and a temperature sensor. The power terminal assembly is housed within the front mounting plate for power terminals, the middle mounting plate for power terminals, and the rear mounting plate for power terminals, which are connected sequentially from end to end. The support for the middle mounting plate for power terminals is fitted over the middle mounting plate for power terminals. The temperature sensor has a connected temperature sensor head and a temperature sensor tail cable. A mounting hole is formed at the rear end of the power terminal assembly. The temperature sensor head is inserted into the mounting hole. The temperature sensor tail cable is bent and arranged parallel to the axis of the power terminal assembly. The temperature sensor tail cable passes through the side of the power terminal mounting plate and the power terminal mounting plate support and is then limited by the mounting groove of the power terminal mounting plate on the outside of the power terminal mounting plate.

2. The power terminal structure with a temperature sensor according to claim 1, characterized in that, The front end of the power terminal assembly is inserted into the front mounting plate of the power terminal, and the rear end is inserted into the middle mounting plate of the power terminal; the front end of the middle mounting plate of the power terminal is inserted into the outer limit of the front mounting plate of the power terminal, and the rear end is inserted into the inner limit of the rear mounting plate of the power terminal.

3. The power terminal structure with a temperature sensor according to claim 1, characterized in that, The mounting holes are arranged parallel to the axial direction of the power terminal assembly.

4. The power terminal structure with a temperature sensor according to claim 3, characterized in that, The mounting plate of the power terminal is through the middle and has a left part and a right part for mounting the power terminal.

5. The power terminal structure with a temperature sensor according to claim 4, characterized in that, The left side of the mounting plate in the power terminal and the right side of the mounting plate in the power terminal are respectively formed with a groove and a boss in the mounting plate in the power terminal for snap-fit, so as to install the mounting plate in the power terminal.

6. The power terminal structure with a temperature sensor according to claim 1, characterized in that, The outer side of the mounting plate in the power terminal has mounting holes and mounting grooves. The mounting holes are for the rear end of the temperature sensor cable to pass through, so that the rear end of the temperature sensor cable is located outside the mounting plate in the power terminal. The mounting groove engages with the mounting boss of the mounting plate support on the inner side of the mounting plate support, so that the mounting plate support is sleeved on the outside of the mounting plate in the power terminal.

7. The power terminal structure with a temperature sensor according to claim 6, characterized in that, The mounting plate support of the power terminal has a slot on its side to avoid the tail cable of the temperature sensor during installation.

8. A multi-core high-current connector with a temperature sensor, characterized in that, Includes a power terminal structure with a temperature sensor as described in any one of claims 1-7, and a housing; A first sealing groove with a first sealing ring is formed on the outside of the power terminal assembly, and the first sealing ring seals the power terminal assembly and the front mounting plate of the power terminal assembly; a mounting protrusion is formed on the outside of the front mounting plate of the power terminal assembly, and the rear side of the mounting protrusion is used to limit the installation of the power terminal assembly.

9. A multi-core high-current connector with a temperature sensor according to claim 8, characterized in that, The multi-core high-current connector is also provided with a housing, and the front end of the power terminal front mounting plate is inserted into the housing, with a second sealing ring pressed between the power terminal front mounting plate and the housing.

10. A multi-core high-current connector with a temperature sensor according to claim 8, characterized in that, The multi-core high-current connector also includes: a sealing ring on the end face of the mounting plate, a mounting plate, a power cable, and a power terminal end cap and a power terminal sealing body sleeved on the power cable; Both the power terminal tail cover and the power terminal sealing body are provided with holes for the temperature sensor tail cable to pass through. The front end of the power cable is connected to the rear end of the power terminal assembly. The power terminal assembly is set inside the power terminal front mounting plate. The power terminal front mounting plate is set inside the housing and also passes through the mounting plate at the rear end of the housing, which is sealed by the mounting plate end face sealing ring. The power terminal sealing body is pressed into the power terminal tail cover, and the power terminal tail cover is snapped into the rear end of the mounting plate.

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