Automobile wire harness connector with temperature early warning function

Abstract

The utility model discloses a kind of automobile wire harness connector with temperature early warning function, including shell and the shell of being sleeved in the top of shell, shell has multiple terminal pin assembly holes, shell has corresponding terminal pin assembly hole with terminal pin perforation, multiple terminal pin assembly holes at least include live wire, zero line terminal pin assembly hole;Fixed hole is provided on the shell in the side of live wire or zero line terminal assembly hole, fixed hole is adjacent to set with terminal pin assembly hole, and with its intercommunication, temperature sensor is equipped in fixed hole, to monitor the temperature of live wire terminal pin in terminal pin assembly hole.This utility model sets temperature sensor in the special fixed hole adjacent to terminal pin assembly hole and intercommunication, this structure not only can make temperature sensor directly monitor the temperature of terminal pin, also can effectively resist the sustained vibration and impact generated in the operation of car, prevent sensor displacement or drop, ensure the long-term stability of monitoring.

Description

Technical Field

[0001] This utility model relates to the field of automotive electrical connection technology, specifically to an automotive wiring harness connector with a temperature warning function. Background Technology

[0002] With the increasing electrification and intelligence of automobiles, the complexity of automotive electrical systems has significantly increased. As a key component for the transmission of electrical signals and power, the long-term stability and reliability of wiring harness connectors directly affect the operational safety of the entire vehicle. During long-term operation, connectors can experience localized overheating due to increased terminal contact resistance and current overload. If this overheating is not detected and addressed promptly, it can lead to melting of the connector insulation, accelerated aging, and consequently, short circuits, connector burn-out, and even serious safety accidents such as fires. Currently, conventional automotive wiring harness connectors primarily function to achieve electrical connections and generally lack effective, built-in real-time temperature monitoring mechanisms. They cannot provide early warnings for potential, gradual overheating faults, and can only be repaired after a fault occurs, posing significant safety hazards. Utility Model Content

[0003] The purpose of this invention is to provide an automotive wiring harness connector with a temperature warning function. The sensor contains dual temperature sensors, enabling real-time temperature monitoring of critical terminals such as the live wire and neutral wire. It also ensures the temperature sensors are securely installed inside the connector, preventing displacement or detachment due to vehicle vibration, thus enabling early detection and warning of overheating faults.

[0004] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0005] A car wiring harness connector with temperature warning function includes a housing and an outer shell. The outer shell is sleeved on the top of the housing. The housing is provided with a plurality of terminal pin mounting holes. The outer shell is provided with terminal pin through holes corresponding to the terminal pin mounting holes. The plurality of terminal pin mounting holes include at least one live wire terminal pin mounting hole and one neutral wire terminal pin mounting hole.

[0006] A first fixing hole is provided on the housing on one side of the live wire terminal assembly hole. The first fixing hole is adjacent to and communicates with the live wire terminal pin assembly hole. A first temperature sensor is provided in the first fixing hole to monitor the temperature of the live wire terminal pin in the live wire terminal pin assembly hole. Correspondingly, a second fixing hole is provided on the housing on one side of the neutral wire terminal assembly hole. The second fixing hole is adjacent to and communicates with the neutral wire terminal pin assembly hole. A second temperature sensor is provided in the second fixing hole to monitor the temperature of the neutral wire terminal pin in the neutral wire terminal pin assembly hole.

[0007] To facilitate the passage of the temperature sensor's connection cable through the housing and to confine the temperature sensor within the mounting hole, the housing is provided with a first insertion hole corresponding to the first mounting hole and a second insertion hole corresponding to the second mounting hole. The diameter of the opening of the first insertion hole is smaller than the diameter of the first temperature sensor, or it forms an interference fit with the first temperature sensor; the diameter of the opening of the second insertion hole is smaller than the diameter of the second temperature sensor, or it forms an interference fit with the second temperature sensor. The temperature sensor's connection cable can exit from the corresponding insertion hole.

[0008] To facilitate the connection of the housing to other components, a pressing hook is provided on each of the left and right sides of the housing, and a pressing hook groove corresponding to the pressing hook is provided on each of the left and right sides of the outer shell, with the pressing hook groove fitted onto the top of the pressing hook.

[0009] Furthermore, the pressing hook includes a pressing piece with a certain gap between it and the side wall of the housing. The top of the pressing piece is connected to the housing, and the bottom end of the pressing piece is provided with a connecting hook protruding outward. When the pressing piece is pressed from the outside of the pressing hook (i.e., the side away from the housing), the connecting hook at the bottom end of the pressing piece can move closer to the housing; when the pressing piece is freed from the binding force, the connecting hook can return to its original state away from the housing.

[0010] Furthermore, the periphery of the housing is provided with multiple hooks, and correspondingly, the periphery of the outer shell is provided with locking holes that engage with the hooks, so as to achieve a firm connection between the housing and the outer shell.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model overcomes the limitations of single-point monitoring by setting two independent temperature sensors to monitor the live wire terminal pin and the neutral wire terminal pin in real time. It can comprehensively and accurately reflect the temperature status of key parts inside the connector and effectively improve the reliability of overheat warning.

[0013] 2. This utility model places the temperature sensor in a dedicated fixing hole adjacent to and connected to the terminal pin mounting hole, and limits its position through a smaller diameter or interference-fitted insertion hole on the outer casing, thus forming a firm "wrap" and fixation for the temperature sensor. This structure not only allows the temperature sensor to directly monitor the temperature of the terminal pin, but also effectively resists the continuous vibration and impact generated during vehicle operation, preventing the sensor from shifting or falling off, and ensuring long-term monitoring stability.

[0014] 3. The mounting hole of the temperature sensor in this invention is independent of the assembly hole of the terminal pins, which completely separates the sensor installation and wiring process from the insertion and removal of the terminal pins and the assembly operation, so that they do not interfere with each other. This simplifies the production and assembly process and improves production efficiency.

[0015] 4. This utility model ensures the overall structural robustness and reliability of the connector through the interlocking hooks and holes between the housing and the outer shell, as well as the protective design of the pressing hook and pressing hook groove. The pressing hook groove covering the top of the pressing hook ensures the lateral pressing function of the pressing hook, facilitating the locking and unlocking of the connector and mating terminals, and improving safety during use.

[0016] 5. This utility model can monitor the internal temperature of the connector in real time. When the temperature rises abnormally due to overload, increased contact resistance, or other reasons, it can issue an early warning through an external circuit (such as a charging control system). This allows the charging control system to take intervention measures before the fault occurs, thereby avoiding more serious consequences and significantly improving the active safety of the automotive electrical system and the service life of each electrical component. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is an exploded view of the components of an automotive wiring harness connector.

[0019] Figure 2 This is a top view of the shell structure.

[0020] Figure 3 This is a schematic diagram of the main structure of the shell.

[0021] Figure 4 This is a schematic diagram of the top structure of the outer shell.

[0022] Figure 5 This is a schematic diagram of the bottom structure of the outer shell.

[0023] Figure 6 This is a schematic diagram of the top structure of a finished automotive wiring harness connector.

[0024] Figure 7This is a schematic diagram of the bottom structure of a finished automotive wiring harness connector. Detailed Implementation

[0025] like Figures 1 to 7 As shown, the automotive wiring harness connector with temperature warning function provided by this utility model is mainly composed of a housing 1, an outer shell 2, and two temperature sensors (a first temperature sensor 31 and a second temperature sensor 32).

[0026] The housing 1 forms the basic structure of the main body and has multiple terminal pin mounting holes for mounting various terminal pins (not shown in the figure). These terminal pin mounting holes include at least one live wire terminal pin mounting hole 11 and one neutral wire terminal pin mounting hole 12. On one side of the live wire terminal pin mounting hole 11, the housing 1 has an adjacent and communicating first fixing hole 13. Similarly, on one side of the neutral wire terminal pin mounting hole 12, an adjacent and communicating second fixing hole 14 is provided. A first temperature sensor 31 is tightly mounted in the first fixing hole 13, with its sensing part facing the live wire terminal pin mounting hole 11, so as to accurately monitor the temperature of the live wire terminal pin. A second temperature sensor 32 is mounted in the second fixing hole 14 for monitoring the temperature of the neutral wire terminal pin. The temperature sensors can be thermistors, thermocouples, or digital temperature sensor chips, etc.

[0027] The outer casing 2 is fitted onto the top of the housing 1. The outer casing 2 has terminal pin through holes 21 corresponding to the terminal pin mounting holes on the housing 1, allowing the terminal pins to pass through. To fix and limit the temperature sensors, the outer casing 2 also has a first socket 22 and a second socket 23, whose positions correspond to the first fixing hole 13 and the second fixing hole 14 on the housing 1, respectively. The diameter of the opening of the first socket 22 is designed to be smaller than the diameter of the first temperature sensor 31 (or to be interference-fitted with it), and the diameter of the opening of the second socket 23 is designed to be smaller than the diameter of the second temperature sensor 32 (or to be interference-fitted with it). When the outer casing 2 is assembled with the housing 1, the edges of the first socket 22 and the second socket 23 press against or tightly fit the ends of the first temperature sensor 31 and the second temperature sensor 32, thus firmly confining them within their respective fixing holes and effectively preventing them from coming out due to vibration. The connecting wires of the temperature sensors can be led out from the corresponding sockets and connected to external monitoring circuits (such as a charging control system).

[0028] To facilitate assembly and provide protection, a live wire hole sleeve 41 is fitted over the head of the live wire terminal pin mounting hole 11. This live wire hole sleeve 41 has a first clearance groove 411 to allow passage to the first fixing hole 13 and the first temperature sensor 31 therein. Similarly, a neutral wire hole sleeve 42 is fitted over the head of the neutral wire terminal pin mounting hole 12, which has a second clearance groove 421 to allow passage to the second fixing hole 14 and the second temperature sensor 32. These sleeves are typically fixedly mounted on the housing 2.

[0029] On the left and right sides of the housing 1, there are pressing hooks 15 respectively. Each pressing hook 15 includes a pressing piece 151 with a gap between it and the side wall of the housing 1. The top of the pressing piece 151 is connected to the housing 1, and its bottom end is provided with an outwardly protruding connecting hook 152. On the left and right sides of the outer shell 2, there are pressing hook grooves 24 corresponding to the pressing hooks 15. When the outer shell 2 is fitted onto the housing 1, the pressing hook grooves 24 fit exactly on the top of the pressing hooks 15. This design ensures the lateral pressing function of the pressing hooks 15, which facilitates the locking and unlocking of the connector and mating terminals.

[0030] To further enhance the connection strength between the housing 1 and the outer shell 2, multiple hooks 16 are provided around the periphery of the housing 1 (e.g., Figure 2 As shown), correspondingly, the periphery of the outer casing 2 is provided with locking holes 25 that engage with these hooks 16 (as shown). Figure 5 (As shown). The engagement of the hook 16 and the locking hole 25 ensures the integrity and mechanical strength of the assembled housing 1 and outer shell 2.

[0031] Assembly and working principle:

[0032] First, the first temperature sensor 31 and the second temperature sensor 32 are pressed into the first fixing hole 13 and the second fixing hole 14 of the housing 1, respectively. Then, the outer shell 2 is aligned with the housing 1 and pressed down, so that the edges of the first insertion hole 22 and the second insertion hole 23 on the outer shell 2 press against the temperature sensors. At the same time, the live wire sleeve 41 is fitted onto the head of the live wire terminal pin assembly hole 11, the first fixing hole 13 is located in the first clearance groove 411, the neutral wire sleeve 42 is fitted onto the head of the neutral wire terminal pin assembly hole 12, the second fixing hole 14 is located in the first clearance groove 421, and the hooks 16 on the periphery of the housing 1 are engaged in the locking holes 25 of the outer shell 2, thus completing the fixation of the main structure.

[0033] During operation, two temperature sensors monitor the temperature of the live and neutral wire terminals in real time. The temperature signals are transmitted to the control system via a connecting cable. When the temperature of either wire exceeds a preset safety threshold, the control system can trigger an alarm signal or take protective measures such as reducing current or cutting off the circuit, thereby achieving active safety protection.

[0034] The above embodiments do not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. An automotive wiring harness connector with a temperature warning function, characterized in that, The device includes a housing and an outer shell. The outer shell is fitted onto the top of the housing. The housing has multiple terminal pin mounting holes and corresponding terminal pin through holes. The multiple terminal pin mounting holes include at least one live wire terminal pin mounting hole and one neutral wire terminal pin mounting hole. A first fixing hole is provided on the housing side of the live wire terminal pin mounting hole. The first fixing hole is adjacent to and communicates with the live wire terminal pin mounting hole. A first temperature sensor is provided in the first fixing hole to monitor the temperature of the live wire terminal pin in the live wire terminal pin mounting hole. A second fixing hole is provided on the housing side of the neutral wire terminal pin mounting hole. The second fixing hole is adjacent to and communicates with the neutral wire terminal pin mounting hole. A second temperature sensor is provided in the second fixing hole to monitor the temperature of the neutral wire terminal pin in the neutral wire terminal pin mounting hole.

2. The automotive wiring harness connector with temperature warning function according to claim 1, characterized in that: The outer casing is provided with a first insertion hole corresponding to the first fixing hole and a second insertion hole corresponding to the second fixing hole. The diameter of the opening of the first insertion hole is smaller than the diameter of the first temperature sensor, or it forms an interference fit with the first temperature sensor; the diameter of the opening of the second insertion hole is smaller than the diameter of the second temperature sensor, or it forms an interference fit with the second temperature sensor.

3. The automotive wiring harness connector with temperature warning function according to claim 1, characterized in that: The left and right sides of the housing are respectively provided with pressing hooks, and the left and right sides of the outer shell are provided with pressing hook grooves corresponding to the pressing hooks, and the pressing hook grooves are fitted on the top of the pressing hooks.

4. The automotive wiring harness connector with temperature warning function according to claim 3, characterized in that: The pressing hook includes a pressing piece with a certain gap between it and the side wall of the housing. The top of the pressing piece is connected to the housing, and the bottom of the pressing piece is provided with a connecting hook protruding outward.

5. The automotive wiring harness connector with temperature warning function according to claim 1, characterized in that: The periphery of the housing is provided with multiple hooks, and correspondingly, the periphery of the outer shell is provided with locking holes that engage with the hooks.

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